Entries |
Document | Title | Date |
20110222155 | CIRCULARLY POLARIZING PLATE AND DISPLAY DEVICE - The present invention provides at low cost a display device with superior visibility and high contrast ratio even in a bright room environment through a reduction in the undesired reflection, not only of the incident outside light from the normal direction, but also of the outside incident light from an oblique direction. The present invention is a circularly polarizing plate including a polarizer and a λ/4 plate, and the aforementioned circularly polarizing plate includes an anti-reflective layer, the aforementioned polarizer, a birefringent layer, and the aforementioned λ/4 plate which are laminated in this order, the NZ coefficient of the aforementioned birefringent layer satisfies NZ<0.1, the in-plane fast axis of the aforementioned birefringent layer is orthogonal to the absorption axis of the aforementioned polarizer, the NZ coefficient of the aforementioned λ/4 plate satisfies NZ>0.9, and the in-plane slow axis of the aforementioned λ/4 plate intersects the absorption axis of the aforementioned polarizer. | 09-15-2011 |
20110242656 | Polarization Conversion Apparatus - Disclosed is a polarization conversion apparatus, the apparatus including a first optical device capable of angle-converting incident unpolarized light to allow a polarization direction to be emitted in mutually different first and second linear polarizations, an FEL (Fly Eye Lens) including first and second MLAs (Micro Lens Arrays) arrayed with first and second micro lenses, where first and second linear polarizations of the first optical device incident on the first micro lenses are divided and condensed on an upper side and a bottom side of the second micro lenses of the second MLA, and a second optical device converting the first and second linear polarizations condensed on the upper side or the bottom side of the second MLA at the FEL to any one polarization of the first and second linear polarizations and emitting the polarization. | 10-06-2011 |
20110249333 | RETARDATION FILM, METHOD OF PRODUCING THE SAME AND DISPLAY DEVICE - A retardation film is provided and is formed by laminating a thermoplastic norbornene resin film, an anchor layer, an alignment film and a phase difference layer in this order. In this retardation film, the anchor layer is formed by applying an anchor material including a tri-, or more-functional acrylate monomer of 50 parts by weight or more and 90 parts by weight or less onto the thermoplastic norbornene resin film and then, drying and curing the anchor material with ultraviolet light. | 10-13-2011 |
20120013982 | Optical Retardation Film and Method of Production Thereof - The present invention relates generally to the field of organic chemistry and particularly to the optical retardation films for liquid crystal displays. The present invention provides an optical film comprising a substrate having front and rear surfaces, and at least one solid retardation layer on the front surface of the substrate. Said solid retardation layer comprises rigid rod-like macromolecules comprising n organic units of the first type having general structural formula I and | 01-19-2012 |
20120081784 | PATTERNED RETARDER - A patterned retarder includes at least one retardation plate comprising a substrate substantially transparent in visible spectral range and having front and rear surfaces and a set of parallel stripes located on front surface of the substrate and possessing in-plane retardation. | 04-05-2012 |
20120081785 | METHOD FOR PRODUCING OPTICAL FILM, OPTICAL FILM, LAMINATED POLARIZING PLATE, AND IMAGE DISPLAY - A method for producing an optical film including a birefringence layer having a refractive index distribution that satisfies nx>nz>ny, by which productivity of an optical film becomes high because there are a few steps, and a contamination is reduced, is provided. The method for producing an optical film including a birefringence layer includes forming an applied film by applying a birefringence layer forming material containing a non-liquid crystalline material with a birefringence (Δnxz) in the thickness direction thereof of 0.0007 or more directly on a shrinkable film, and forming a birefringence layer having a refractive index distribution that satisfies nx>nz>ny by shrinking the applied film through shrinking the shrinkable film. | 04-05-2012 |
20120229897 | Achromatic Phase Retarder with Anisotropic Layered Structure - A phase retarder including a transparent substrate; and at least a symmetrical or pseudo symmetrical film stack stacked on the transparent substrate, the symmetrical or pseudo symmetrical film stack having odd numbers of thin film, the odd numbers of thin film having an intermediate thin film located at the center of the symmetrical or pseudo symmetrical film stack and at least one thin film located respectively on two sides of the intermediate thin film, and, with respect to the central thin film, properties of the thin films located respectively on two sides of the intermediate thin film are symmetrical or pseudo-symmetrical, there is at least one anisotropic thin film in the symmetrical or pseudo symmetrical film stack. | 09-13-2012 |
20120243091 | METHODS AND APPARATUS FOR CONCEALING SENSORS AND OTHER COMPONENTS OF ELECTRONIC DEVICES - A concealing structure to at least partially conceal a sensor, light emitter or other component by at least partially preventing reflection of external light by an underlying structure. In some examples, this function is performed by a two-component masking assembly, the masking assembly including a linear polarizer to cause linear polarization of light which passes from the exterior of the device to an underlying component, and a wave plate to shift the axis of any reflected polarized light. In many cases, a high density optical fluid will further be included within the masking assembly to minimize reflections from the other components of the assembly. | 09-27-2012 |
20120257277 | OPTICAL ELEMENT AND OPTICAL APPARATUS - An optical element including a first layer ( | 10-11-2012 |
20130021667 | GAS BARRIER LAMINATE AND CIRCULARLY POLARIZING PLATE - A gas barrier multilayer body including a composite layer A which has a film (a) and an inorganic barrier layer (a), and a composite layer B which has an alicyclic olefin resin film (b) and an inorganic barrier layer (b), wherein a surface of the composite layer A and a surface of the composite layer B are faced and bonded to each other, a surface of the alicyclic olefin resin film (b) on a side facing to the composite layer A is an activation-treated surface, and the activation-treated surface of the alicyclic olefin resin film (b) is in contact with the composite layer A directly or via a metal alkoxide layer (b); and a circularly polarizing plate including the same. | 01-24-2013 |
20130083394 | LAMINATED OPTICAL FILM, AND POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A laminated optical film which exhibit a high front contrast ratio and even brightness, improve viewing angle characteristics of a liquid crystal display of a horizontal alignment mode, and have high durability. | 04-04-2013 |
20130094085 | RETARDER FILM COMBINATIONS WITH SPATIALLY SELECTIVE BIREFRINGENCE REDUCTION - Retarder film combinations generally include a retarder film connected to another optical component such that light transmitted by the retarder film can impinge on the optical component, the combination being configured to allow independent patterning of the retarder film and the optical component by selective birefringence reduction. The patterning can change a first light retardation to a third light retardation in a first zone without substantially changing optical characteristics of the optical component in the first zone. The optical component may be a second retarder film having a second light retardation, and the patterning may change the second light retardation to a fourth light retardation, without substantially changing the first light retardation, in a second zone. The optical component may also be a multilayer optical film, or a diffusely reflective optical film having a blended layer of first and second distinct phases. | 04-18-2013 |
20130114140 | POLARIZATION CONVERTER OF BIDIRECTIONAL CYLINDRICAL SYMMETRY AND CARTESIAN-CYLINDRICAL POLARIZATION CONVERSION METHOD - A bidirectional Cartesian-cylindrical converter system and method for converting the spatial distribution of polarization states include a radial polarization converter capable of receiving a linearly polarized, spatially uniform, polarization distribution beam in order to convert it into a beam having a radial or azimuthal distribution of polarization states about an axis of symmetry. An optical device compensates for the phase shift induced by the radial polarization converter and is capable of introducing a spatially uniform phase shift to compensate for the phase shift introduced by the. | 05-09-2013 |
20130128359 | OPTICAL FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY APPARATUS - An optical film having a high Re and a low |Rth| is provided. An optical film consists of a composition that includes cellulose acylate having an acyl group including an aromatic group, and satisfies Formula (I) 150 nm≦Re (550)≦350 nm, Formula (II) −50 nm≦Rth (550)≦50 nm, and Formula (III) 0.07 nm≦degree of cross-sectional orientation P2z≦1, Here, Re (550) represents the in-plane retardation at a wavelength of 550 nm, and Rth (550) represents the thickness direction retardation at a wavelength of 550 nm. | 05-23-2013 |
20130135727 | WAVE PLATE AND WAVE PLATE MANUFACTURING METHOD - A wave plate capable of increasing a birefringence quantity and being made into a thin film, and a method of manufacturing the wave plate. The wave plate includes a substrate, whereon convex portions and concave portions are formed with a period less than or equal to the wavelength of light that is used therewith, columnar portions, wherein fine grains of a dielectric material are layered by oblique vapor deposition of a dielectric material from two directions, in a columnar shape on the convex portions in the vertical direction relative to the surface of the substrate, and interstices that are located on the concave portions and disposed between the columnar portions. Using birefringence from the fine grains of the dielectric material and birefringence from the concave/convex portions of the substrate allows increasing the birefringence quantity and making a thin film. | 05-30-2013 |
20130148199 | DISPLAY DEVICE - Embodiments relate to a display device for enhancing image quality. The disclosed display device includes: a display panel configured to display an image; a Poly-Vinyl Acetate (PVA) layer configured to linearly polarize external light; and a Quarter Wave Plate (QWP) configured to circularly polarize light where the QWP has an in-plane retardation value of below 140 nm. | 06-13-2013 |
20130163082 | OPTICAL FILM, MULTILAYER FILM, AND MANUFACTURING METHOD THEREOF - An optical film that does not cause display unevenness, includes a retardation layer A (A layer) satisfying the following relational expression, nz>nx≧ny here, nx represents an in-plane refractive index in a direction of an in-plane slow axis, ny represents an in-plane refractive index in a direction orthogonal to the direction of an in-plane slow axis, and nz represents a refractive index in a thickness direction; and a retardation layer B (B layer) of which in-plane retardation Re and thickness direction retardation Rth satisfy the following relational expressions: 0 nm≦Re≦20 nm and 50 nm≦Rth≦300 nm, wherein the total film thickness is 5 μm to 40 μm. | 06-27-2013 |
20130222910 | OPTICAL FILM, POLARIZING PLATE, AND IMAGE-FORMING DISPLAY DEVICE - An optical film having: a hard coat layer; an optically anisotropic layer; and a transparent support, wherein the optically anisotropic layer contains a liquid crystalline compound and a binder, the hard coat layer, the transparent support, and the optically anisotropic layer are laminated in this order, a surface of the optically anisotropic layer contains a fluorine-containing compound not forming covalent bond with the binder of the optically anisotropic layer, a surface of the optical film on the hard coat layer-formed side contains a fluorine-containing or silicone series compound being fixed by covalent bond, and a topmost surface properties of the optical film on hard coat layer-formed side satisfies the specific conditions. | 08-29-2013 |
20130271835 | PHASE DIFFERENCE FILM LAYERED BODY AND METHOD FOR PRODUCING PHASE DIFFERENCE FILM LAYERED BODY - By provision of an A layer consisting of a resin having a positive intrinsic birefringence value; a B layer consisting of a resin containing a styrene polymer and having a negative intrinsic birefringence value; and a C layer consisting of a resin containing a polymer having an alicyclic structure, in this order; a phase difference film wherein, when the C layer is removed, retardation Re at an incident angle of 0° and retardation R | 10-17-2013 |
20130314789 | Optical Apparatus and Method for Expanding an Exit Pupil - A first optical arrangement is configured to couple into an apparatus a first component of a light beam having a wavelength within a first spectral range; a second optical arrangement configured to couple a second component of the light beam having a wavelength within a different second spectral range; a third optical arrangement configured to expand the first component in a first dimension to create an expanded first component; a fourth optical arrangement configured to expand, in a second dimension, the expanded first component to create a further expanded first component, and to output the further expanded first component; a fifth optical arrangement configured to expand the second component in the second dimension to create an expanded second component; and a sixth optical arrangement configured to expand, in the first dimension, the expanded second component to create a further expanded second component, and to output the further expanded second component. | 11-28-2013 |
20130314790 | PATTERNED RETARDER PLATE AND MANUFACTURING METHOD THEREOF - Provided is a method for manufacturing a patterned retarder plate including a liquid crystal sheet on which a retarding pattern with a λ/4 wavelength by forming a patterned align layer on a photo align layer by performing an align process once. The method for manufacturing a retarder plate according to the exemplary embodiments of the present invention can implement the photoalign through a single process during the photoalign process using the mask, thereby reducing the defect rate due to the existing method and reducing the process costs. | 11-28-2013 |
20130329290 | MULTILAYERED FILM AND METHOD OF MANUFACTURING MULTILAYERED FILM - Having a layer B formed of a resin “b” having a negative intrinsic birefringence value; and layers A formed of a resin “a” having a positive intrinsic birefringence value and formed on both surfaces of the layer B, wherein the resin “b” includes a styrene-based polymer, the resin “a” includes a polycarbonate, and a difference in average refractive index between the resin “b” and the resin “a” is 0.01 or more. | 12-12-2013 |
20130335823 | Optical Film Stack - Optical film stacks are disclosed. The optical film stacks can include a first reflective polarizer, a second reflective polarizer, and a retardance layer disposed between the first reflective polarizer and the second reflective polarizer. | 12-19-2013 |
20140036363 | RESIN COMPOSITION FOR OPTICAL FILM AND OPTICAL FILM USING THE SAME - Provided are a resin composition for an optical film including an alkyl(meth)acrylate unit, a benzyl(meth)acrylate unit, a (meth)acrylic acid unit, and a unit expressed by Chemical Formula I, an optical film, a polarizing plate, and an image display device using the resin composition. | 02-06-2014 |
20140092473 | ACRYLIC RESIN COMPOSITION, AND OPTICAL FILM COMPRISING SAME - The present invention relates to an acrylic copolymer resin containing: 1) an alkyl (meth)acrylate-based monomer; 2) a (meth)acrylate-based monomer containing an aliphatic ring and/or an aromatic ring; and 3) at least an imide-based monomer or a styrene-based monomer, to a resin composition containing said acrylic copolymer resin and a resin containing an aromatic ring and/or an aliphatic ring in the main chain thereof, to an optical film comprising said resin composition, and to a liquid crystal display device comprising said optical film. The optical film according to the present invention has excellent heat resistance, optical transparency, etc. | 04-03-2014 |
20140098420 | POLARIZATION CONVERSION MECHANISM AND METHOD THEREOF - A polarization conversion mechanism for a touch screen display includes a crystal layer and a polarizing layer. The crystal layer utilizes a birefringent crystal glass for changing phase delay effect in accordance with crystal axial angle thereof. The polarizing layer includes at least one linear polarizer such that an incident light after hitting a display module of the display device reflects and emits out through the linear polarizer and the crystal layer sequentially as reflection light in form of circularly polarized light or elliptically polarized light. The assembly of the crystal layer and the layer are installed to the display device and/or touch screen display in such a manner that the assembly is located on the display module thereof. | 04-10-2014 |
20140126055 | WIDE-VIEW MULTILAYER OPTICAL FILMS - A multilayer optical film includes a wave plate having a refractive index profile of n | 05-08-2014 |
20140126056 | COLLIMATING OPTICAL DEVICE AND SYSTEM - There is provided a light-guide, compact collimating optical device, including a light-guide having a light-waves entrance surface, a light-waves exit surface and a plurality of external surfaces, a light-waves reflecting surface carried by the light-guide at one of the external surfaces, two retardation plates carried by light-guides on a portion of the external surfaces, a light-waves polarizing beamsplitter disposed at an angle to one of the light-waves entrance or exit surfaces, and a light-waves collimating component covering a portion of one of the retardation plates. A system including the optical device and a substrate, is also provided. | 05-08-2014 |
20140153097 | SPACE VARIANT POLARIZATION CONVERTER - This patent describes an optical element, which converts incident linearly or circularly polarized visible light into radially or azimuthally polarized light beam. The polarization converter is a single optical element, produced by direct laser writing technique in an optically transparent substrate. Direct laser writing based on ultra-short pulsed laser radiation forms form birefringence self-assembled nanogratings in optically transparent material, such as fused silica. The period of gratings is smaller than wavelengths of a visible light. | 06-05-2014 |
20140168768 | POLARIZING PLATE AND OPTICAL DISPLAY APPARATUS INCLUDING THE SAME - A polarizing plate includes a polarizer, a protective film on an upper surface of the polarizer, a half-wavelength (λ/2) retardation film on a lower surface of the polarizer, an adhesive layer on a lower surface of the half-wavelength (λ/2) retardation film, and a quarter-wavelength (λ/4) retardation film on a lower surface of the adhesive layer. The half-wavelength (λ/2) retardation film may have a refractive index n1, the quarter-wavelength (λ/4) retardation film may have a refractive index n2, and the adhesive layer may have a refractive index n in the range of n106-19-2014 | |
20140168769 | POLARIZING PLATE, METHOD FOR PREPARING THE SAME, AND OPTICAL DISPLAY APPARATUS INCLUDING THE SAME - A polarizing plate includes a polarizer having absorption and transmission axes, a protective film on an upper surface of the polarizer, a half-wavelength (λ/2) retardation film on a lower surface of the polarizer, an adhesive layer on a lower surface of the half-wavelength (λ/2) retardation film, and a quarter-wavelength (λ/4) retardation film on a lower surface of the adhesive layer. An absolute orthogonal b-coordinate value based on a CIELAB color coordinate system of the polarizing plate may be approximately 3 or less when the polarizing plate is stacked with a reference polarizing plate having a degree of polarization of at least 99.9% such that an angle between the absorption axis of the polarizer and an absorption axis of a polarizer of the reference polarizing plate or an angle between the transmission axis of the polarizer and a transmission axis of the polarizer of the reference polarizing plate is 90°. | 06-19-2014 |
20140168770 | MULTILAYER AND SINGLE LAYER CELLULOSE ESTER FILMS HAVING REVERSED OPTICAL DISPERSION - The present invention relates to a single layer mixed cellulose ester film having a reversed optical dispersion. The mixed cellulose ester material has a DS | 06-19-2014 |
20140168771 | OPTICAL RETARDATION FILM AND METHOD OF MANUFACTURING - Cellulose derivative optical retardation film with suitable birefringent characteristics to enhance wide view performance upon use in liquid crystal devices (LCD), especially in vertically aligned (VA) type LCDs. Method of manufacturing such a cellulose derivative optical retardation film and its use in a liquid crystal display or an imaging device. | 06-19-2014 |
20140204460 | POLARIZER, MANUFACTURING METHOD FOR THE SAME AND DISPLAY DEVICE EMPLOYING THEREOF - Provided are a high luminance polarizing plate including a polarizing plate, a λ/2 retardation film having an in-plane retardation value ranging from 250 nm to 280 nm in a wavelength range of 450 nm to 650 nm that is laminated on one side of the polarizing plate, and a brightness enhancement film laminated on the λ/2 retardation film, a method of manufacturing the same, and a display device using the high luminance polarizing plate. | 07-24-2014 |
20140211311 | LIQUID CRYSTAL DISPLAY HAVING IMPROVED WAVELENGTH DISPERSION CHARACTERISTICS - A multilayer optical retardation compensation film having at least one positive C-plate and at least one negative C-plate is used in an LCD device. The multilayer film may have a substantially flat wavelength dispersion curve, or the multilayer film combined with other layers in the LCD device may have a substantially flat wavelength dispersion curve. Polymer films for the positive C-plate may be identified according to their absorbance maxima at certain wavelength ranges. | 07-31-2014 |
20140240830 | OPTICAL FILM AND METHOD OF ADJUSTING WAVELENGTH DISPERSION CHARACTERISTICS OF THE SAME - There is provided an optical film. The optical film includes at least one retardation film and at least one isotropic layer made of an isotropic material, herein the difference in average refractive index between the retardation film and the isotropic layer is at least 0.1 or more. Also, the method of adjusting wavelength dispersion characteristics of an optical film includes: stacking an isotropic layer onto a retardation film. The present invention provides a method for preparing optical films having variety of wavelength dispersion characteristics by the simple method of coating the retardation film with the isotropic layer. | 08-28-2014 |
20140247487 | OPTICAL FILM - An optical film, a polarizing plate and a display device are provided. The optical film can have desired phase retardation at a wide wavelength range, and also show no light leakage at an inclination angle. Also, the optical film can have ¼-wavelength phase retardation, and can be used for reflective or semi-transmissive/reflective liquid crystal display devices or organic light-emitting devices. | 09-04-2014 |
20140254013 | OPTICAL MEMBER WITH DOUBLE RAINBOW FILM - An optical member for transmitting or reflecting light is provided. The optical member includes a base member that transmits or reflects light; and a double rainbow film attached on the base member. Preferably, the double rainbow film has an in-plane phase difference in a range of 8,000 nm to 11,000 nm. When the optical member is used together with a display device, there is little color shift before and during wearing sunglasses and a rainbow-like stain which appears in a conventional display device when wearing sunglasses with a polarizing function may be suppressed. | 09-11-2014 |
20140254014 | OPTICAL FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE - There is provided an optical film including an acrylic resin, wherein a tensile elastic modulus in a machine direction, which is abbreviated as an MD direction, and a tensile elastic modulus in a direction perpendicular to the machine direction, which is abbreviated as a TD direction, satisfy the relationship of Equation (1): | 09-11-2014 |
20140268333 | RETARDATION FILM, AND CIRCULARLY POLARIZING PLATE AND IMAGE DISPLAY DEVICE EACH USING THE SAME - An object of the present invention is to provide a retardation film succeeded in solving those conventional problems, that is, a retardation film insusceptible to color dropout or color shift even under environment of severe temperature or humidity conditions and capable of being produced by a melt film-forming method. The retardation film of the present invention satisfies the relationships of the following formulae (A) and (B): | 09-18-2014 |
20140268334 | POLYCARBONATE RESIN AND TRANSPARENT FILM FORMED THEREFROM - The polycarbonate resin of the invention includes a first structural unit derived from a dihydroxy compound represented by a general formula (1), a second structural unit derived from a dihydroxy compound represented by a general formula (2), and a third structural unit derived from at least one dihydroxy compound selected from the group consisting of a dihydroxy compound represented by a general formula (3), a dihydroxy compound represented by a general formula (4), a dihydroxy compound represented by a general formula (5), and a dihydroxy compound represented by a general formula (6), and in which the first structural unit derived from a dihydroxy compound represented by the general formula (1) accounts for 18% by mole or more of the polycarbonate resin. The above general formulae (1) to (6) are described in the specification of the present application. | 09-18-2014 |
20140285888 | RETARDATION FILM, AND CIRCULARLY POLARIZING PLATE AND IMAGE DISPLAY DEVICE EACH USING THE SAME - A retardation film insusceptible to color dropout or color shift even under environment of severe temperature or humidity conditions and capable of being produced by a melt film-forming method. The retardation film is obtained by molding at least one polymer selected from polycarbonate and polyester carbonate each having a glass transition temperature of 110 to 180° C. and satisfies the relationships of the following formulae (A) and (B): | 09-25-2014 |
20140293420 | POLARIZING PLATE FOR OLED AND OPTICAL DISPLAY INCLUDING THE SAME - A polarizing plate for an OLED includes a polarizer, a protective film on an upper side of the polarizer, and a stack structure of a λ/4 reverse dispersion retardation film and a positive C plate on a lower side of the polarizer. An optical display includes the polarizing plate. The polarizing plate minimizes the difference in retardation at all lateral viewing angles, and can therefore reduce or suppress lateral color shift causing the viewer to see different colors, depending on the lateral viewing angle. | 10-02-2014 |
20140307317 | POLARIZER - Provided are a polarizing plate and a display. The illustrative polarizing plate may exhibit desired characteristics in a wide range of wavelengths, and have excellent reflection and visibility at an inclined angle. For example, the polarizing plate may be used in a reflective or transflective liquid crystal display or an organic light emitting device. | 10-16-2014 |
20140313581 | LONG PATTERNED ALIGNMENT FILM, AND LONG PATTERNED RETARDATION FILM USING SAME - A long patterned alignment film is provided, from which a large number of patterned retardation films can easily be produced, having an alignment layer which is in a long form and comprises an optical alignment material, wherein the alignment layer includes a first alignment region for causing a rodlike compound having a refractive index anisotropy to be arranged in a certain direction, and a second alignment region for causing the rodlike compound to be arranged in a direction different from the certain direction of the first alignment region. | 10-23-2014 |
20140320961 | OPTICAL FILM - An optical film comprising a substrate having front and rear surfaces, and at least one solid optical retardation layer on the front surface of the substrate, wherein the solid optical retardation layer comprises organic rigid rod-like macromolecules based on 2,2′-disulfo-4,4′-benzidine terephthalamide or its salt of the general structural formula I. The solid optical retardation layer is an uniaxial positive A-type layer and is substantially transparent to electromagnetic radiation in the visible spectral range. | 10-30-2014 |
20140327963 | METHOD OF PRODUCING RETARDATION FILM - The present invention provides a method of producing a retardation film excellent in stretchability and capable of achieving high alignment property. The method of producing a retardation film of the present invention is the method in which a lengthy resin film is stretched in a widthwise direction thereof while being conveyed in a lengthwise direction thereof to provide a retardation film satisfying a relationship of 0.7011-06-2014 | |
20140334001 | MULTILAYERED OPTICAL FILM, MANUFACTURING METHOD THEREOF, AND DISPLAY DEVICE - An embodiment of an optical film includes: a polarization layer; a first phase retardation layer; a second phase retardation layer; and a light blocking layer disposed between the first phase retardation layer and the second phase retardation layer and extending along a circumference of the second phase retardation layer, wherein the polarization layer is disposed on the first phase retardation, the first phase retardation layer is disposed on the second phase retardation layer, an in-plane retardation value of the first phase retardation layer at a standard wavelength of about 550 nanometers is in a range from about 240 nanometers to about 300 nanometers, and an in-plane retardation value of the second phase retardation layer at the standard wavelength is in a range from about 110 nanometers to about 160 nanometers. | 11-13-2014 |
20140334002 | PATTERNED RETARDER - A patterned retarder includes at least one retardation plate comprising a substrate substantially transparent in visible spectral range and having front and rear surfaces and a set of parallel stripes located on front surface of the substrate and possessing in-plane retardation. | 11-13-2014 |
20140347728 | OPTICAL MEMBER AND DISPLAY DEVICE INCLUDING THE OPTICAL MEMBER - An optical member includes a polarization film configured to polarize light. The optical member may further include a sealing member that overlaps the polarization film. The optical member may further include a retardation film disposed between the polarization film and the sealing member and configured to cause phase retardation. The optical member may further include a lens film disposed between the retardation film and the sealing member and includes a plurality of concave lens units that defines a plurality of air units, which may be sealed by the sealing member. | 11-27-2014 |
20140355115 | Dimming Device - A dimming device includes a first polarizer, a second polarizer, a first retarder layer and a second retarder layer. The dimming device can generate full-light transmission state, dark state and a transitional state of various kinds of repeat patterns formed by a plurality of full-light transmission areas and dark areas. | 12-04-2014 |
20140355116 | Polarizer for Dimming Device - A polarizer for a dimming device. The polarizer includes a polarization layer with an absorption axis; and a patterned retarder layer on the polarization layer and comprising patterned alignment microstructures and a liquid crystal layer disposed on the patterned alignment microstructures, wherein the patterned alignment microstructures are formed by embossing and the optical axis of the patterned retarder layer is continuous. | 12-04-2014 |
20150015949 | FILM AND METHOD FOR MANUFACTURING THE SAME, OPTICAL FILM, POLARIZER-PROTECTING FILM, POLARIZING PLATE, AND IMAGE DISPLAY DEVICE - Disclosed is a film having a cyclic olefin resin layer including a cyclic olefin resin and a cage-shaped silosesquioxane compound wherein the cage-shaped silosesquioxane compound includes at least one substituent having one or more carbon atoms as a substituent of a Si atom. The film has a cyclic olefin resin layer with a high water vapor barrier property, low haze, and high surface hardness. | 01-15-2015 |
20150015950 | PROCESS FOR THE PRODUCTION OF LOW STRESS AND OPTICAL QUALITY FILM FOR USE IN OPTO-ELECTRONIC DEVICES - The present invention relates to a film with low an optical retardation and thus low stress birefringence which contains at least one layer containing at least one polycarbonate or co-polycarbonate and which, on account of its optical properties, is suitable for use in opto-electronic devices, e.g. in displays and touch panels, as well as to a process for the production of such films and to the use thereof. | 01-15-2015 |
20150015951 | POLARIZING PLATE PROTECTIVE FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY - A polarizing plate protective film forming a polarizing plate by sandwiching a polarizer with two of the polarizing plate protective films, wherein at least one of the two polarizing plate protective films exhibits Ro defined by Expression (I) of 0 to 10 mm and Rt defined by Expression (II) of −20 to 20 mm, and also at least one of the polarizing plate protective films has a hard coat layer: Expression (I): Ro=(nx−ny)×d; Expression (II): Rt={(nx+ny)/2−nz}×d; wherein nx is a refractive index in a delayed phase axis direction in a plane of the polarizing plate protective film, ny is a refractive index in a direction at right angles to the delayed phase axis in the plane, nz is a refractive index in a film thickness direction, and d is a film thickness (nm). | 01-15-2015 |
20150029587 | RETARDATION FILM AND PRODUCTION METHOD THEREFOR, POLARIZING PLATE, AND DISPLAY DEVICE - Provided is a producing method for a retardation film with a reverse wavelength dispersion property, which is highly reliable in terms of a small wavelength dispersion change and is low in display unevenness due to a position dependence of a retardation variation. The production method is designed for a retardation film which satisfies the following formulas (1) and (2): 0.701-29-2015 | |
20150043071 | OPTICAL FILM - To provide an optical film excellent in suppression of light leakage in black display. An optical film having a first phase difference layer and a second phase difference layer, wherein the second phase difference layer has an optical property represented by the formula (3) and the optical film has optical properties represented by the formulae (1), (2) and (30): | 02-12-2015 |
20150043072 | METHOD FOR PRODUCING LONG RETARDATION FILM - A method for producing a long retardation film having an optical axis in an oblique direction relative to the length direction of the long retardation film is provided. | 02-12-2015 |
20150055219 | ADHESIVE FILM FOR POLARIZING PLATE, POLARIZING PLATE INCLUDING THE SAME AND OPTICAL DISPLAY INCLUDING THE SAME - An adhesive film for a polarizing plate includes a functional group represented by Formula 1: | 02-26-2015 |
20150062702 | PHASE DIFFERENCE FILM LAMINATE, METHOD FOR PRODUCING PHASE DIFFERENCE FILM LAMINATE, AND METHOD FOR PRODUCING PHASE DIFFERENCE FILM - A phase difference film layered body is obtained by stretching a film before stretching, the film before stretching including: a P1 layer formed of a resin p1 containing polyphenylene ether having a positive intrinsic birefringence value and a polystyrene-based polymer having a negative intrinsic birefringence value and having a syndiotactic structure; and a P2 layer disposed in contact with the P1 layer and formed of a resin p2 containing an acrylic resin or an alicyclic structure-containing polymer. In the resin p1, the weight ratio of (the content of the polyphenylene ether)/(the content of the polystyrene-based polymer) is 35/65 to 45/55. A method for producing the phase difference film layered body and a method for producing a phase difference film using the phase difference film layered body are also provided. | 03-05-2015 |
20150070764 | METHOD FOR PRODUCING LAMINATED BODY - Method for producing a thin optical laminated body. This method is a method for producing a laminated body including a polarization layer, a λ/2 layer, a λ/4 layer, a positive C layer, and a transfer adhesive layer, the laminated body including the polarization layer, the λ/2 layer and the λ/4 layer in this member-described order; including the positive C layer between the polarization layer and the λ/4 layer, or at the side of the λ/4 layer that is opposite to the λ/2-layer-arranged side of the λ/4 layer; and including the transfer adhesive layer between the polarization layer and the λ/4 layer or positive C layer, the method including the step of bonding a bonding body including a substrate and the transfer adhesive layer to an adherend through the transfer adhesive layer, and peeling the substrate from the resultant. | 03-12-2015 |
20150085362 | OPTICAL FILM AND METHOD OF PREPARING SAME - The present invention relates to an optical film and method of manufacturing the same. The optical film of the present invention includes an acrylic resin and a core-shell type graft copolymer wherein the core includes a conjugate diene rubber, and the shell includes an acrylic monomer, an aromatic vinyl monomer, and a maleimide monomer. | 03-26-2015 |
20150109667 | LONG RETARDATION FILM, CIRCULARLY POLARIZING PLATE AND ORGANIC EL PANEL - The present invention provides a long retardation film having sufficient reversed wavelength dispersion characteristics and favorable for film lamination according to a roll-to-roll system. A long retardation film of the present invention includes a polycarbonate resin or a polyester carbonate resin, an orientation angle θ which is an angle between a slow axis and a width direction satisfies the following formula (I), and a ratio of an in-plane retardation R450 measured at a wavelength of 450 nm to an in-plane retardation R550 measured at a wavelength of 550 nm satisfies the following formula (II): | 04-23-2015 |
20150109668 | POLARIZING MULTILAYER FILM, METHOD OF USING SAME, AND METHOD FOR PRODUCING A DEVICE COMPRISING THE FILM - A polarizing multilayer film is provided. The polarizing multilayer film comprises a first adhesive layer, a second adhesive layer, a polarization layer which is arranged between the first and second adhesive layers, a first separating film which is removably arranged on a side of the first adhesive layer remote from the polarization layer, and a second separating film which is removably arranged on a side of the second adhesive layer remote from the polarization layer. There are further provided a method of using the polarizing multilayer film and a method for producing a screen, a light-emitting decorative element or another device using the polarizing multilayer film. | 04-23-2015 |
20150116826 | POLARIZING PLATE AND ORGANIC EL PANEL - There is provided a polarizing plate that achieves an excellent reflection hue. A polarizing plate according to an embodiment of the present invention is used in an organic EL panel, and includes a polarizer and a retardation film. In-plane retardations of the retardation film satisfy a relationship of Re(450)04-30-2015 | |
20150116827 | HIGHLY MISCIBLE POLYMER BLENDS AND USES THEREOF - Compositions comprise a highly miscible polymer blend of at least one cellulose derivative and at least one polysiloxane additive of formula [R | 04-30-2015 |
20150293286 | OPTICAL FILM - The present invention relates to an optical film, a polarizing plate including the same, and a display device. The exemplary optical film may have a desired wavelength dispersion characteristic using positive and negative uniaxial retardation films satisfying a predetermined condition. In addition, the optical film has a desired wavelength dispersion characteristic, and thus may be utilized in various fields requiring delicate control of optical properties. For example, the optical film can be useful in the polarizing plate used to prevent reflection and ensure visibility in the display device. | 10-15-2015 |
20150301232 | RETARDATION FILM, METHOD FOR PRODUCING THE SAME AND DISPLAY APPARATUS - The invention provides a retardation film, a method for producing the same and a display apparatus comprising the same. The retardation film comprises a phase retardation layer and a cured material layer formed by curing a curable material applied on the phase retardation layer, wherein the cured material layer is disposed on the light-emitting side of the phase retardation layer. In the retardation film of this invention, since the cured material layer is formed by curing the curable material applied on the phase retardation layer, the laminating equipment can be omitted and the equipment investment can thus be decreased, thereby lowering the production cost. | 10-22-2015 |
20150323723 | ANTI-BURST OGS TOUCH PANEL - An anti-burst, or so-called an anti-shatter, OGS (One-Glass-Solution) touch panel is provided. The OGS touch panel includes a cover lens of glass and a touch sensor layer formed on one side of the cover lens. The OGS touch panel further includes a polarizer, wherein the polarizer is bonded, by means of an adhesive layer included in the polarizer, to one side of the touch sensor layer which is the side opposite from the cover lens, or is bonded to one side of the cover lens which is the side opposite from the touch sensor layer. Because of the function of the adhesive layer included in the polarizer, the OGS touch panel as provided achieves the advantage of both being shatterproof and having a reduced total thickness. | 11-12-2015 |
20150331244 | Parallel Plate and Twin Polarization Wavelength Isolation Filters for Optical Communications - Optical filter assemblies based on either a parallel plate optical assembly or a polarization separation optical assembly are described. The optical assemblies usefully separate randomly polarized light with at least two transmission wavelengths from an optical communication signal. | 11-19-2015 |
20150355397 | OPTICAL FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE - The objective of the present invention is to provide an optical film which shows an improved developability of optical characteristics per unit thickness and concurrently shows excellent moisture dependence and optical stability under hygrothermal conditions, and to provide a polarizing plate and a liquid crystal display device using such optical film. The present invention provides an optical film including a cellulose acylate whose degree of substitution of acyl group is from 2.0 to 2.6, satisfying Formula 1 and Formula 2 below, and having a thickness of 40 μm or thinner; Formula 1: ΔRth(RH)/Rth(550)≦0.12 and Formula 2: ΔRth(60° C.90% 1d)/Rth(550)≦0.05, in the formulae, ΔRth(RH)=Rth(30%)−Rth(80%) and ΔRth(60° C.90% 1d)=Rth(60° C.90% 1d)−Rth(initial). | 12-10-2015 |
20150362650 | DISPLAY DEVICE - A panorama display device includes a first display panel flexibly hinged to provide a hinged part and a non-hinged part of the first display panel, a first polarization unit on the first display panel, the first polarization unit including a separated part separated from a remaining part of the first polarization unit, a second display panel flexibly hinged to provide a hinged part and a non-hinged part of the second display panel, and a second polarization unit on the second display panel, the second polarization unit including a separated part separated from a remaining part of the second polarization unit. The hinged part of the first display panel is hinged with the separated part of the first polarization unit. The hinged part of the second display panel is hinged with the separated part of the second polarization unit. The first and second display panels are connected to each other. | 12-17-2015 |
20150378079 | MULTILAYER RETARDATION FILM AND METHOD FOR PRODUCING SAME - A layered phase difference film including, in the following order: a resin layer A | 12-31-2015 |
20160018564 | POLARIZING PLATE, LIQUID CRYSTAL DISPLAY COMPRISING THE SAME AND METHOD FOR PREPARING POLARIZING PLATE - A polarizing plate includes a polarizer and a polyester film formed on at least one surface of the polarizer. The polyester film includes a polyester base film and a primer layer formed on at least one surface of the polyester base film. The polyester film contains about 0.1 wt % to about 5 wt % of a UV absorbent. In addition, a liquid crystal display includes the polarizing plate. A method of fabricating a polarizing plate includes preparing a multilayer film containing about 0.1 wt % to about 5 wt % of a UV absorbent, stretching the multilayer film to about 2 to about 10 times its initial length in a transverse direction (TD) to prepare a polyester film, and attaching the polyester film to at least one surface of a polarizer. The multilayer film comprises a polyester base film and a primer layer on at least one surface of the polyester base film. | 01-21-2016 |
20160025914 | Dielectric Metasurface Optical Elements - A dielectric gradient metasurface optical device provides optical wavefront shaping using an ultrathin (less than 100 nm thick) layer of nanoscale geometric Pancharatnam-Berry phase optical elements deposited on a substrate layer. The optical elements are nanobeams composed of high refractive index dielectric material. The nanobeams have uniform size and shape and are arranged with less than 200 nm separations and spatially varying orientations in the plane of the device such that the optical device has a spatially varying optical phase response capable of optical wavefront shaping. The high refractive index dielectric material may be materials compatible with semiconductor electronic fabrication, including silicon, polysilicon, germanium, gallium arsenide, titanium dioxide, or iron oxide. | 01-28-2016 |
20160033684 | OPTICAL FILM, POLARIZING PLATE CONTAINING SAME AND VERTICAL ALIGNMENT LIQUID CRYSTAL DISPLAY DEVICE - An optical film that can achieve an intended retardation value suitable for a VA type liquid crystal display while decreasing the Rt fluctuation due to humidity is provided. | 02-04-2016 |
20160047955 | Diffractive Waveplate Lenses for Correcting Aberrations and Polarization-Independent Functionality - Diffractive waveplate lenses, devices, systems and methods of fabricating and manufacturing lenses for correcting spherical and chromatic aberrations of diffractive waveplate lenses and refractive lenses, by using nonlinear patterning of anisotropy axis of birefringent layers comprising the diffractive waveplate lenses, and their combinations and for obtaining polarization-independent functionality of diffractive waveplate lenses. | 02-18-2016 |
20160047962 | METHOD FOR PRODUCING OPTICALLY ANISOTROPIC FILM - A method is provided for producing an optically anisotropic film. The method includes the following steps: (1) a step of coating a composition for forming an optically anisotropic layer onto a surface of a substrate, or onto a surface of an orientation layer formed on the surface of the substrate; (2) a step of drying the coated composition for forming an optically anisotropic layer to form a dry coating; and (3) a step of cooling the dry coating at a rate of 6° C./sec or more to form an optically anisotropic film. | 02-18-2016 |
20160062011 | POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A polarizing plate includes a polarizer and a polyester film formed on an upper side of the polarizer. The polyester film has a ratio of MD elongation to TD elongation of about 1:6 to about 1:30. An angle between the transmission axis of the polarizer and the TD of the polyester film ranges from about −7° to about +7°. In some embodiments, a liquid crystal display includes the polarizing plate. The polarizing plate and the liquid crystal display can reduce the occurrence of rainbow spots, realize a high degree of polarization, and exhibit little variation in the retardation and dimensions under high temperature/high humidity conditions. | 03-03-2016 |
20160062019 | METHOD FOR PRODUCING PHASE-DIFFERENCE FILM AND METHOD FOR PRODUCING CIRCULARLY POLARIZING PLATE - Provided is a method capable of producing a retardation film being excellent in axial accuracy, showing small changes in retardation and dimensions at the time of its heating, and having a slow axis in an oblique direction with high production efficiency. The production method for a retardation film of the present invention includes: holding left and right end portions of a film with left and right variable pitch-type clips configured to have clip pitches changing in a longitudinal direction, respectively; preheating the film; causing the clip pitches of the left and right clips to each independently change to obliquely stretch the film; reducing the clip pitches of the left and right clips to shrink the film in the longitudinal direction; and releasing the film from being held with the clips. | 03-03-2016 |
20160062020 | RETARDATION FILM, AND CIRCULARLY POLARIZING PLATE AND IMAGE DISPLAY DEVICE USING THE RETARDATION FILM - A retardation film includes a cellulose ether derivative and a compound having a negative intrinsic birefringence, wherein the retardation film includes: a transmittance at a wavelength of 320 to 400 nm of 89% or more; an in-plane retardation Ro | 03-03-2016 |
20160070030 | OPTICAL FILM, CIRCULARLY POLARIZING PLATE AND ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE - Provided is an optical film containing a cellulose derivative, the optical film having an in-plane retardation Ro | 03-10-2016 |
20160077267 | POLARIZING PLATE AND DISPLAY DEVICE THEREWITH - A polarizing plate, wherein a λ/4 film and a cured layer which includes a UV-curable resin are layered in this order on one side of a polarizer via an adhesive layer. The thickness of the λ/4 film is 10 μm to 70 μm. The adhesive layer bonds the polarizer and the λ/4 film by a state change from a liquid state. The cured layer includes an organic compound having a UV-absorbing function. | 03-17-2016 |
20160096312 | PRODUCTION METHOD FOR PHASE SHIFT FILM, AND PRODUCTION METHOD FOR CIRCULAR POLARIZING PLATE - Provided is a method capable of producing a retardation film suppressed in biaxiality, having a small Nz coefficient, and having a slow axis in an oblique direction with high production efficiency. The production method for a retardation film of the present invention includes: holding left and right side edge portions of a film to be stretched with left and right variable pitch-type clips configured to have clip pitches changing in a longitudinal direction, respectively; preheating the film; reducing, under a state in which a position at which the clip pitch of the clips on one side out of the left and right clips starts to reduce and a position at which the clip pitch of the clips on another side starts to reduce are set to different positions in the longitudinal direction, the clip pitch of each of the clips to a predetermined pitch to subject the film to oblique stretching; and releasing the clips holding the film. | 04-07-2016 |
20160109632 | OPTICAL FILM, POLARIZATION PLATE, TRANSPARENT CONDUCTIVE FILM, SURFACE PROTECTION FILM, AND LIQUID CRYSTAL DISPLAY APPARATUS - Disclosed is an optical film in which heat resistance or moisture resistance is excellent, and visibility is able to be sufficiently ensured. In the optical film used in a display apparatus including a polarizer, Re is 1,000 nm to 30,000 nm, and Rth is −30,000 nm to −1,000 nm. Further, disclosed are a polarization plate including the optical film, a transparent conductive film including the optical film, a surface protection film including the optical film including the optical film, and a liquid crystal display apparatus including the optical film. | 04-21-2016 |
20160116802 | LIQUID CRYSTAL DISPLAY DEVICE AND POLARIZER PROTECTIVE FILM - The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx−ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°. | 04-28-2016 |
20160131812 | POLYMER-SMALL MOLECULE FILM OR COATING HAVING REVERSE OR FLAT DISPERSION OF RETARDATION - The present disclosure relates to a retarder plate with adjustable dispersion of retardation. The retarder can form a quarter-wave plate that exhibits a reverse or flat dispersion of retardation. | 05-12-2016 |
20160131920 | Universal Polarization Converter - A universal polarization converter is provided including a polarizer configured to receive unpolarized light. The polarizer is further configured to split the received unpolarized light into a first and second polarized state. At least two quarter wave phase retarders are configured to convert each of the first and second polarized states to opposite handed polarized beams. A cholesteric mirror is configured to combine the opposite handed polarized beams. In other embodiments, the cholesteric mirror may be replaced by a second polarizer and optional quarter wave retardation plate. Further embodiments may include a single polarization converter and multiple quarter wave retardation plates. | 05-12-2016 |
20160146980 | POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A polarizing plate and a liquid crystal display including the polarizing plate include: a polarizer; and a surface protective film on a first surface of the polarizer, and the surface protective film includes a first protective film on the first surface of the polarizer, and a primer layer on at least one surface of the first protective film, a refractive index ratio of the first protective film to the primer layer satisfying the equation: 0.605-26-2016 | |
20160154157 | ANTIREFLECTIVE POLARIZING PLATE AND IMAGE DISPLAY APPARATUS INCLUDING SAME | 06-02-2016 |
20160154159 | COMPENSATION FILM, AND OPTICAL FILM AND DISPLAY DEVICE INCLUDING THE SAME | 06-02-2016 |
20160178823 | POLARIZATION HYPERSPECTRAL/MULTISPECTRAL IMAGER AND METHOD | 06-23-2016 |
20160187539 | CELLULOSE ESTER BASED QUARTER WAVE PLATES HAVING NORMAL WAVELENGTH DISPERSION - The present invention pertains to an optical film for use as a quarter wave plate (QWP) having a normal wavelength dispersion curve. More specifically, this invention relates to a quarter wave plate based on cellulose ester polymer and fused ring additives. | 06-30-2016 |
20160187544 | OPTICAL FILM, TRANSPARENT CONDUCTIVE FILM, TOUCH PANEL, SURFACE PROTECTION FILM AND DISPLAY DEVICE - An object of the present invention is to provide an optical film in which impact resistance and slipperiness of the film are excellent, and the occurrence of rainbow-like unevenness is suppressed. The present invention relates to an optical film containing a cyclic olefin-based resin and an elastomer, in which a content ratio of the elastomer is 5 mass % to 40 mass % with respect to the total mass of the optical film, and retardation Rth in a thickness direction in terms of a thickness of 40 μm is 6 nm to 90 nm. The present invention further relates to a transparent conductive film, a touch panel, a surface protection film, and a display device. | 06-30-2016 |
20160187552 | COMPOSITION FOR OPTICAL FILM, AND FILMS AND DISPLAY DEVICE - A composition for an optical film, including a first liquid crystal compound represented by the following Chemical Formula 1 and a second liquid crystal compound represented by the following Chemical Formula 2, wherein a difference between a solubility parameter of the first liquid crystal compound and a solubility parameter of the second liquid crystal compound is about 2.50 to about 2.90 | 06-30-2016 |
20160195660 | OPTICAL FILM, POLARIZING PLATE, IMAGE DISPLAY DEVICE, AND OPTICAL-FILM MANUFACTURING METHOD | 07-07-2016 |
20160252665 | POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY COMPRISING THE SAME | 09-01-2016 |
20160377780 | OPTICAL REFLECTION FILM - An object of the present invention is to provide an optical reflection film which is suppressed in iridescent irregularities caused by unevenness of birefringence or film thickness among layers of a reflection unit and has excellent optical reflection performance and light transmittance. | 12-29-2016 |
20180024284 | Method For Manufacturing Retardation Film By Using Dual-Axial Stretching Process And A Retardation Film | 01-25-2018 |