Class / Patent application number | Description | Number of patent applications / Date published |
362627000 | Film or coating | 31 |
20080219027 | LIGHT REDIRECTING FILM HAVING VARIABLE THICKNESS - A display comprises a light source and a light redirecting polymeric film containing a structured surface on at least one side of the film and bearing a polymeric coating over at least part of the structured surface wherein the coating exhibits a variable thickness. | 09-11-2008 |
20080219028 | LIGHT REDIRECTING FILM HAVING DISCONTINUOUS COATING - The invention relates to a display comprising a light source and a light redirecting polymeric film containing a structured surface on at least one side of the film and bearing a discontinuous population of adherent beads bonded to the structured surface. | 09-11-2008 |
20080247192 | Light-Transmitting Film, Method of Forming Light-Transmitting Film, and Liquid Crystal Display - A light-transmitting film that has a predetermined polarization split function, in addition to a light-collecting function is provided. The index of refraction nx in a prism extension direction and the index of refraction in a prism alignment direction differ from each other. By generating a difference in the indices of refraction in the prism extension direction and the prism alignment direction orthogonal thereto, for the light incident on the light-transmitting film, the polarization component Lx oscillating in the prism extension direction and the polarization component Ly oscillating in the prism alignment direction can have different transmission characteristics. For example, by setting the index of refraction in the prism extension direction greater than the index of refraction in the prism alignment direction (nx>ny), among the light incident on the light-transmitting film, the amount of return light of the polarization component Lx oscillating in the prism extension direction is greater than that of the polarization component Ly oscillating in the prism alignment direction. In this way, not only a light-collecting function, but also a predetermined polarization split function is obtained. | 10-09-2008 |
20090122577 | Optical Film - The present invention provides an optical film comprising a substrate having a first optical surface and a second surface and a microstructure layer on the first optical surface of the substrate, wherein the microstructure layer comprises a plurality of first light-adjusting structures selected from the group consisting of prism columnar structures, conical columnar structures, solid angle structures and orange-segment like structures and a combination thereof and a plurality of second light-adjusting structures selected from the group consisting of arc columnar structures, lens-like structures, and capsule-like structures and a combination thereof, wherein at least a portion of the second light-adjusting structures has a height greater than those of all the first light-adjusting structures. | 05-14-2009 |
20100002468 | Luminance enhancement film having a substrate incorporating dispersed particles for diffusion - A luminance enhancement film having a built-in light diffusing structure. The support substrate incorporates a dispersion of particles for light diffusion. In accordance with the present invention, a separate particle layer is not required in addition to the support substrate layer. The particles are integrated in the unitary support substrate layer. In one aspect of the present invention, the particles are dispersed near at least one of the planar surfaces of the support substrate (i.e., the light input surface light output surface or both of the support substrate. All the particles may be embedded below the surface of the support substrate, or some of the particles may protrude above the surface of the support substrate. In one embodiment of the present invention, the support substrate contains particles that are dispersed only close to its surface and form protrusions at the surface (i.e., the particle dispersed surface is not smooth). | 01-07-2010 |
20100014319 | IMAGE DISPLAY APPARATUS, AND DISGUISING DEVICE - An image display apparatus ( | 01-21-2010 |
20100067258 | BULK LIGHT DIFFUSER COMPOSITION - The present invention is a bulk light diffuser material based upon a hydrogenated block copolymer, but including a particulate light diffusing component. The material may be in the form of a film, a sheet or a molded article. When present as a sheet having a thickness of 2 millimeters, the sheet has a percent total transmittance of at least 50% and a haze of at least 70%, measured according to the American Society for Testing and Materials (ASTM) standard D 1003. | 03-18-2010 |
20100135041 | LIGHT GUIDE PLATE AND BACKLIGHT MODULE USING THE SAME - A light guide plate includes a plurality of micro dots. The micro dots are provided uniformly on one side of the light guide plate and are integrated with the light guide plate. Each dot is coated by a fluorescent layer, and the fluorescent layer emits light when excited by an ultraviolet light. | 06-03-2010 |
20100182802 | Light Guide Plate and Backlight Module Having V-Cut Structure - A light guide plate having a V-cut structure and a backlight module are disclosed. The light guide plate comprises straight-striped V-cut structure sets and a base plate having a light-entering side. The straight-striped V-cut structure sets are formed on a surface of the base plate adjacent to the light-entering side, wherein each straight-striped V-cut structure set is composed of at least one V-cut element, each V-cut element having a first base angle and a second base angle formed between its respective two inclined surfaces and a horizontal surface of the base plate. The first base angle is located closer to the light-entering side than the second base angle is, and is smaller than or equal to the second base angle. The straight-striped V-cut structure sets have a plurality of second average angle values which are gradually decreased from the light-entering side to a central position of the base plate. | 07-22-2010 |
20100214805 | Optical film, manufacturing process thereof and applied back light module - An optical film capable of delivering high level of brightness including a surface of an incident plane of the optical film constructed with multiple light penetration areas segregated by multiple reflection microstructures each provided with a groove; each groove is covered up with a reflective material; and when the optical film is applied in a backlight module, all streams of light entering into the optical film are effectively centered on those light penetration areas constructed on the optical film for further irradiation out of the optical film. | 08-26-2010 |
20100309687 | DUAL FILM LIGHT GUIDE FOR ILLUMINATING DISPLAYS - A front light guide panel including a plurality of embedded surface features is provided. The front light panel is configured to deliver uniform illumination from an artificial light source disposed at one side of the font light panel to an array of display elements located behind the front light guide while allowing for the option of illumination from ambient lighting transmitted through the light guide panel. The surface embedded surface relief features create air pockets within the light guide panel. Light incident on the side surface of the light guide propagates though the light guide until it strikes an air/light material guide interface at one on the air pockets. The light is then turned by total internal reflection through a large angle such that it exits an output face disposed in front of the array of display elements. | 12-09-2010 |
20110103095 | LIGHT GUIDE PLATE AND METHOD FOR MANUFACTURING LIGHT GUIDE PLATE - A light guide plate that uses a resin film as a material for the light guide plate, that has a reflecting or scattering pattern formed by printing, and that guides a light propagating in the film to exit and emerge from the front surface thereof. The light guide plate is thinner and highly flexible, and has high reliability and durability. A base material of the light guide plate is formed from a thermosetting polyurethane sheet with a thickness of 0.4 mm or less. When a dot pattern is formed by ink-jetting, a white UV curable ink, for which the thermosetting polyurethane exhibits a swellability such that the thermosetting polyurethane increases by 10% or more in weight as a result of being soaked in the ink for one hour at a room temperature, is used as the ink. | 05-05-2011 |
20110255306 | LIGHT ENHANCING STRUCTURES WITH A PLURALITY OF ARRAYS OF ELONGATE FEATURES - Various embodiments comprise light recycling films comprising an array of parallel ridges and grooves that form prisms that selectively reflect or transmit light. In some embodiments, the light recycling film may be used in displays that include spatial light modulators comprising a plurality of pixels. The light recycling film can limit the field-of-view of the display and enhance the luminance within that field-of-view. Various embodiments comprising multiple arrays of ridges and/or grooves can enhance uniformity of illumination of the pixels in the spatial light modulator and reduce Moiré effects. | 10-20-2011 |
20120020116 | LIGHT GUIDE PLATE ASSEMBLY FOR PORTABLE ELECTRONIC DEVICE - A light guide plate includes a light source, a first light guide area and a second light guide area. The first light guide area and the second light guide area are formed by a single light guide plate. The first light guide area defines a notch, and the light source is positioned in the notch. A plurality of microdots are provided on one side of the second light guide area, and the microdots uniformly guiding light from the light source to the second light guide area. | 01-26-2012 |
20120182767 | LIGHT-EXTRACTION GRAPHICS FILM - In at least some embodiments, a film for use with an edge-lit backlight includes a substrate. The film also includes a graphics layer and light-extraction features in contact with the substrate. The graphics layer and the light-extraction features are on opposite surfaces of the substrate. | 07-19-2012 |
20120236600 | LGF Roll-to-Roll Manufacturing Method and Structure Thereof - A LGF roll-to-roll manufacturing includes the steps of: preparing a first optical layer with a first surface and a second surface; mechanically extruding a first integrated microstructure on the first surface of the first optical layer; subsequently coating a second optical layer on the first or second surface of the first optical layer; and curing the second optical layer to directly form a second microstructure on the first or second surface of the first optical layer; wherein the first integrated microstructure and the second microstructure are separately formed at a time to provide a light guide film structure. In an embodiment, an additional optical layer is provided on the first optical layer. | 09-20-2012 |
20120268967 | LIGHT GUIDES - Lightguides are disclosed. More particularly, lightguides that include a lightguiding layer and a light extracting layer having a structured surface are disclosed. The light guiding layer is optically coupled to a first set of structures of the structured surface at given locations, and is not optically coupled to a second set of structures at given locations, thereby producing total internal reflection at the second locations. The selective optical coupling may be achieved by a number of different contemplated means as discussed herein. The lightguides allow for distribution of light along with redirection towards an image viewer without a number of commonly required optical elements in backlights. | 10-25-2012 |
20120287676 | LIGHT GUIDE PLATE STRUCTURE AND METHOD OF FABRICATING THE SAME - The present invention relates to a light guide plate structure including a light guide layer and at least a light-barrier line. The light-barrier line includes an ink and is disposed within the light guide layer for blocking a light from being transmitted all over the light guide layer, and the light-barrier line is employed to allow the light to be just transmitted in separated regions within the light guide layer or to prevent light leakage. The present invention also relates to fabrication of the aforesaid light guide plate structure, in which, a surface modification is performed on the light guide layer, and a modified surface of the light guide layer is printed with an ink to allow the ink to permeate or corrode the light guide layer to form a light-barrier line within the light guide layer. | 11-15-2012 |
20120287677 | OPTICAL CONSTRUCTIONS INCORPORATING A LIGHT GUIDE AND LOW REFRACTIVE INDEX FILMS - Optical constructions use a low index of refraction layer ( | 11-15-2012 |
20130003413 | SYMMETRIC SERRATED EDGE LIGHT GUIDE FILM HAVING ELLIPTICAL BASE SEGMENTS - The present invention provides a planar light guide film for a backlight unit having at least one point light source, the light guide film comprising a light input surface for receiving light from the point light source, a light redirecting surface for redirecting light received from the light input surface and a light output surface for outputting at least the light redirected from the light redirecting surface. The light input surface further comprises a composite lens structure having a circular tip segment with a first contact angle, and a first and second elliptical base segments with a second contact angle, the second contact angle being less than the first contact angle and the second contact angle being equal to each other and | 01-03-2013 |
20130003414 | SYMMETRIC SERRATED EDGE LIGHT GUIDE FILM HAVING ELLIPTICAL BASE SEGMENTS - The present invention provides a planar light guide film for a backlight unit having at least one point light source, the light guide film comprising a light input surface for receiving light from the point light source, a light redirecting surface for redirecting light received from the light input surface and a light output surface for outputting at least the light redirected from the light redirecting surface. The light input surface further comprises a composite lens structure having a circular tip segment with a first contact angle, and a first and second elliptical base segments with a second contact angle, the second contact angle being greater than the first contact angle and the second contact angle being equal to each other and | 01-03-2013 |
20130003415 | PATTERNED LIGHT GUIDE PANEL, MANUFACTURING METHOD THEREOF, AND BACKLIGHT UNIT INCLUDING THE PATTERNED LIGHT GUIDE PANEL - A patterned light guide panel, a manufacturing method thereof, and a backlight unit including the patterned light guide panel, the patterned light guide panel including a base layer; and a skin layer stacked on the base layer, the skin layer having a lenticular pattern extending orthogonally to a light entrance plane of the light guide panel. | 01-03-2013 |
20130100704 | LIGHT GUIDE WITH A PRINTED FILM - A method for making a light guide includes transferring ink onto a master tool having a three-dimensional feature pattern formed thereon and then transferring ink from the master tool to a transparent light guide. The method also includes curing the ink on the light guide. Alternatively, the ink may be printed onto a substrate (e.g., a film) and then laminated to the light guide. | 04-25-2013 |
20130107577 | Backlight Module and Manufacturing Method thereof, and Liquid Crystal Display Device | 05-02-2013 |
20130141943 | Slim Bezel Backlight Module of Liquid Crystal Display Device - The present invention provides a slim bezel backlight module of liquid crystal display device, which includes: a bezel, a back panel, a connection member, and a plastic frame arranged on the back panel. The bezel includes a front plate that forms a displaying opening and a side plate extending downward from an end of the front plate. The back panel includes a bottom board that is opposite to the front plate. The front plate of the bezel is recessed to form a first extruded threaded hole having internal threading. The bottom board of the back panel forms a bore corresponding to the first extruded threaded hole. The plastic frame forms a through hole corresponding to the bore. The connection member extends through the through hole and has two ends respectively mating and connecting the first extruded threaded hole of the front plate of the bezel and the bore of the bottom board of the back panel to thereby fix the bezel to the back panel. The present invention saves a great amount of space and sites on the plastic frame and the back panel and avoids removal of material in a large area of the plastic frame for not interfering with the bumps of the bezel and the bumps of the thereby guaranteeing the structural strength of the plastic frame and helping the sliming of the bezel for the backlight module. | 06-06-2013 |
20130286687 | LIGHT GUIDE WITH A PRINTED FILM - A method for making a light guide includes transferring ink onto a master tool having a three-dimensional feature pattern formed thereon and then transferring ink from the master tool to a transparent light guide. The method also includes curing the ink on the light guide. Alternatively, the ink may be printed onto a substrate (e.g., a film) and then laminated to the light guide. | 10-31-2013 |
20130301300 | TRANSPARENT ILLUMINATION PANELS - Windows, or other types of transparent materials, may be constructed to passively allow light from alternate sources to pass therethrough, while also being able to actively produce artificial light for providing illumination from one side of the window by means of an incorporated optical waveguide that accepts light from an edge of the window and disperses it from only one side of the window. | 11-14-2013 |
20140071713 | Display Module Having Support Structure for Display Panel - A display module includes a display panel and a backlight module. The display panel has overlapped first and second substrates, wherein the first substrate extends beyond the second substrate at a first side. The backlight module is disposed on one side of the display module opposite to the display surface and includes a support unit disposed along the first side. The support unit has a first tier portion and a second tier portion, which is lifted toward the display panel with respect to the first tier portion and supports the display panel. A projection region of the display panel supported by the second tier portion on the first substrate covers or overlaps the edge of the second substrate at the first side and extends to an overlapping area of the first substrate and the second substrate. | 03-13-2014 |
20140092632 | COMPOSITE LIGHT GUIDE PLATE - The present invention provides a composite light guide plate having a thickness of more than about 1 mm, for use in LCD backlights or in general illumination devices. In the fabrication method of the present invention the extrusion roll molding process is combined with coating and lamination steps to enable a cost effective roll-to-roll or roll-to-sheet manufacture of the thick composite light guide plate wherein one or both principal surfaces of the light guide plate contain a pattern to enable extraction and redirection of light by the light guide plate from a light source or multiple light sources placed at one or multiple edges of the light guide plate. The composite light guide plate comprises a patterned film and a pre-cut sheet joined together by an adhesive layer. In order to attain good light extraction efficiency the adhesive layer and the two constituent layers of the light guide plate must be optically matched such that the refractive indices of any two of the three materials of the composite light guide plate can differ by no more than 0.01. | 04-03-2014 |
20140140100 | Display Device - The present invention provides a display device comprising: back plate, lightguiding plate, optical film, and positioning unit. Lightguiding plate is disposed on back plate. Optical film is disposed on lightguiding plate. Optical film comprises at least one positioning section. Positioning section comprises first extending section extending out from the margin of optical film, and second extending section being connected with extending section. Positioning unit is disposed close to optical film and fixed on back plate. Positioning unit comprises main section and hold down section connecting to main section. The present invention, adding positioning unit comprising a groove holding first extending section and hold down section holding down second extending section on back plate, makes optical film positioned and prevents disposition and falloff during the manufacturing and transportation process. In addition, without applying tapes to position optical film, as a result, optical film waving is prevented. | 05-22-2014 |
20140301110 | POWER GENERATING MODULE AND LIGHT GUIDING FILM THEREOF - The present invention relates to a power generating module and light guiding film thereof. The light guiding film includes a film base and at least one microstructure. The microstructure is disposed on a side surface of the film base. After the input light beams pass through the light guiding film, the total luminous flux of the output light beams with the output angles from 70 to 110 degrees is more than 40% of the total luminous flux of the output light beams with the output angles from 0 to 180 degrees. Therefore, most of the output light beams emit in the normal direction. | 10-09-2014 |