Class / Patent application number | Description | Number of patent applications / Date published |
349127000 | Formed of a liquid crystal material | 21 |
20090147200 | VERTICAL ALIGNMENT FILM AND METHOD OF MANUFACTURING THEREOF, VERTICAL ALIGNMENT SUBSTRATE AND METHOD OF MANUFACTURING THEREOF, AND LIQUID CRYSTAL DISPLAY DEVICE - A highly reliable vertical alignment film for aligning display-use liquid crystal molecules in a direction slightly tilted from the substrate normal line direction and a method of manufacturing the vertical alignment film are provided. A layer composed of a liquid crystalline monomer that has a crystalline framework, and that has characteristics to align the crystalline framework vertically to an interface with a dissimilar material and polymerizable characteristics is formed on a transparent substrate. A magnetic field is applied thereto while the liquid crystal state is maintained, and thereby the liquid crystalline framework of the liquid crystalline monomer is aligned in a direction slightly tilted from the normal line direction of the substrate. In this state, the liquid crystalline monomer is polymerized, and a hardened layer formed from a complex composed of the unreacted liquid crystalline monomer and a liquid crystalline monomer polymer is formed as a vertical alignment film. | 06-11-2009 |
20090201452 | LIQUID CRYSTAL COMPOSITION AND DISPLAY DEVICE HAVING THE SAME - The present invention relates to liquid crystal composition and a display device having the same. The liquid crystal composition includes uniaxial liquid crystal molecules and biaxial liquid crystal molecules mixed with the uniaxial liquid crystal molecules for controlling an alignment direction of the uniaxial liquid crystal molecules. The liquid crystal composition helps reduce generation of singular points and texture regions where orientation of liquid crystal molecules are difficult to control. Hence, the liquid crystal composition is able to provide improved image quality. | 08-13-2009 |
20100171916 | HOMEOTROPIC ALIGNMENT LIQUID CRYSTAL FILM, OPTICAL FILM COMPRISING THE SAME, AND IMAGE DISPLAY DEVICE - A homeotropic alignment liquid crystal film is provided with a liquid crystalline substance containing a side chain liquid crystalline compound having an oxetanyl group, as a constituent, aligned homeotropically on an alignment substrate while being in a liquid crystal state and fixed in the homeotropic alignment by allowing the oxetanyl group to react. Thus, the homeotropic alignment liquid crystal film can be stably produced without necessitating a complicated step such as light irradiation under an inert gas atmosphere and is excellent in alignment retainability after being fixed in the homeotropic alignment and in mechanical strength. | 07-08-2010 |
20100182556 | LIQUID CRYSTAL DISPLAY DEVICE, METHOD OF MANUFACTURING THE SAME AND ALIGNMENT LAYER COMPOSITION FOR THE LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device that includes an array substrate, an opposite substrate and a liquid crystal display layer is described. The array substrate includes a pixel electrode and a lower alignment layer. The pixel electrode has a plurality of slit portions extending in different directions. The lower alignment layer includes a reactive mesogen (RM) diamine is formed on the pixel electrode to induce an alignment direction of the liquid crystal molecules. An upper alignment layer is formed on a common electrode of the opposite substrate. The RM is cured at surfaces of the lower and upper alignment layers in response to ultraviolet (UV) light, so that liquid crystal molecules have a pretilt angle. Therefore, the aperture ratio and the response time may be improved, and afterimages may be decreased, so that display quality may be improved. | 07-22-2010 |
20110032465 | LIQUID CRYSTAL DISPLAY PANEL AND A METHOD OF MANUFACTURING THE SAME - A black matrix is disposed on a surface of a first base substrate having a switching element, a color filter is disposed on the switching element in a pixel area, a pixel electrode is disposed on the first base substrate having the color filter, and a first alignment layer is disposed on the pixel electrode to form a first substrate. A common electrode layer is disposed on a second base substrate, and a second alignment layer is disposed on the common electrode layer to form a second substrate. A liquid crystal composition including a reactive mesogen (RM) is interposed between opposing surfaces of the first and second substrates. The RM is cured to form a mesogen cured product on the first and second alignment layers. Accordingly, an RM having a planar structure increases curing speed, reduces, manufacturing time, and improves quality of the LCD panel. | 02-10-2011 |
20110069267 | DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME - Disclosed are a display apparatus and a method of manufacturing the same. The liquid crystal display includes a first substrate and a pixel electrode formed on the first substrate and having a plurality of branches. A plurality of alignment sections are interposed among the branches. An auxiliary liquid crystal layer having discotic liquid crystals is formed on the pixel electrode and the alignment sections. A main liquid crystal layer having a vertical alignment mode is formed on the auxiliary liquid crystal layer. A common electrode is formed on the main liquid crystal layer to apply an electric field to the main liquid crystal layer together with the pixel electrode. A second substrate is formed on the common electrode. | 03-24-2011 |
20120013837 | COMPOSITION FOR FORMING LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides: a composition for forming a liquid crystal alignment film capable of forming a liquid crystal alignment film excellent in evenness; and a liquid crystal display device. The present invention provides a composition for forming a liquid crystal alignment film, wherein the composition comprises: a material for forming a liquid crystal alignment film; 4,6-dimethyl-2-heptanone; diisobutyl ketone; and at least one of γ-butyrolactone and N-methyl-2-pyrrolidone as solvents. | 01-19-2012 |
20120105783 | PATTERNED ELECTRONIC AND POLARIZATION OPTICAL DEVICES - Linear photo-oriented polymer (LPP) layers are situated to align liquid crystals in a liquid crystal polymer (LCP) layer situated at or on the LPP layers. The LCP layer can include a guest such as a fluorophore that aligns with the liquid crystal so as to emit polarized fluorescence in response to an excitation beam. Layer LPP/LCP structures can be provided as light emitters, patterned polarizers, patterned retarders and other devices based on selection of one or more guest materials included in the LCP and alignable with the liquid crystal. | 05-03-2012 |
20120127408 | LIQUID CRYSTAL DISPLAY DEVICE - In an MVA liquid crystal display device of the present invention, each pixel includes at least one electrode ( | 05-24-2012 |
20120162590 | Liquid crystal display devices and methods of manufacturing liquid crystal display devices - A liquid crystal display device includes a first substrate, a first electrode on the first substrate, a second substrate opposed to the first substrate, and a second electrode on the second substrate. The second electrode corresponds to the first electrode. The liquid crystal display device also includes a liquid crystal structure between the first electrode and the second electrode. The liquid crystal structure includes a plurality of liquid crystal molecules and at least one movement control member. The movement control member in the liquid crystal structure restricts a movement of the liquid crystal molecules. | 06-28-2012 |
20120287390 | Liquid Crystal Alignment Agent, Liquid Crystal Alignment Film Manufactured Using the Same, and Liquid Crystal Display Device Including the Liquid Crystal Alignment Film - Disclosed is a liquid crystal alignment agent that includes a polymer comprising polyamic acid including a structural unit represented by the following Chemical Formula 1, polyimide including a structural unit represented by the following Chemical Formula 2, or a combination thereof. | 11-15-2012 |
20120320323 | LIQUID CRYSTAL DISPLAY AND MANUFACTURING METHOD THEREOF - In a liquid crystal display, a pretilt value provided by an upper alignment layer or a lower alignment layer is gradually changed in one domain, such that liquid crystal molecules have various arrangements in which azimuth angles of aligned liquid crystal molecules are gradually changed. | 12-20-2012 |
20130021568 | REACTIVE MONOMER OF LIQUID CRYSTAL AND LIQUID CRYSTAL PANEL - The present invention discloses a reactive monomer of liquid crystal. The reactive monomer of liquid crystal is added with at least one fluoro group. Because hydrocarbon bonds of a side chain of polyimide surface of an alignment film has a fluorophobic effect, the fluoro group of the reactive monomer of liquid crystal can lower the interaction between the polyimide surface of the alignment film and the reactive monomer of liquid crystal to thus evenly deposit the liquid crystal composition containing the reactive monomers of liquid crystal onto the polyimide surface of the alignment film. Thus, it can avoid from occurring the phenomenon of drop Mura defect occurred during implementing the ODF technology. | 01-24-2013 |
20130083278 | LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device in which a good alignment state can be obtained, and the occurrence of AC image sticking can be suppressed. The present invention is a liquid crystal display device including a liquid crystal layer including liquid crystal molecules and being interposed between a pair of substrates, and an alignment layer provided on a side of the liquid crystal layer in at least one of the substrates, wherein the alignment layer includes a liquid crystal alignment polymer having a property of controlling and aligning the liquid crystal molecules, and the surface side chain density in the alignment layer is not less than 2.0. | 04-04-2013 |
20130286340 | LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL DISPLAY, AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY - The present invention provides a liquid crystal alignment agent capable of preventing a decrease in voltage holding ratio (VHR), a liquid crystal display containing such a liquid crystal alignment agent, and a method for manufacturing such a liquid crystal display. Aspects of the present invention include a liquid crystal alignment agent containing at least one polymer selected from a polyamic acid and an imide polymer thereof and at least one difunctional monomer having an anthracene or phenanthrene structure, a liquid crystal display including an alignment film formed on at least one of an active substrate and a counter substrate using the above liquid crystal alignment agent, and a method for manufacturing a liquid crystal display including the steps of forming an active substrate and forming a counter substrate, at least one of which includes forming an alignment film on the active substrate or the counter substrate using the above liquid crystal alignment agent. | 10-31-2013 |
20130314656 | Liquid Crystal Panel And Method Of Liquid Crystal Alignment - The present invention provides a method of liquid crystal (LC) alignment and LC panel, which includes: providing first substrate, forming first alignment film on surface of first substrate; providing second substrate, disposed oppositely to first substrate, and forming common electrodes, pixel electrodes disposed with separating space, and second alignment film covering common electrodes and pixel electrodes on surface of second substrate; filling LC composite between first alignment film and second alignment film, LC composite comprising reactive monomers and LC molecules; applying high frequency alternating electric field to common electrodes and pixel electrodes so that reactive monomers and LC molecules arranged perpendicular to high frequency alternating electric field with pretilt angle; continuing applying high frequency alternating electric field and using UV radiation to fix pretilt angle to perform alignment. The present invention does not use rubbing to perform alignment, and avoids pollution to LC panel. | 11-28-2013 |
20130329174 | OPTICAL DEFLECTING ELEMENT - An optical deflecting element ( | 12-12-2013 |
20140192306 | Alignment layer and liquid crystal display having the same - Disclosed are an alignment layer and a liquid crystal display having the same. The alignment layer comprises a polyimide compound having an azo group and exhibiting optical alignment characteristics and a discotic liquid crystal compound exhibiting optical anisotropy. The liquid crystal display comprises first and second substrates facing each other, liquid crystal aligned between the first and second substrates, and an alignment layer formed on at least one surface of the first and second substrates. The alignment layer is adjacent to the liquid crystal and has optical alignment characteristics and optical anisotropy. | 07-10-2014 |
20140232974 | SECURITY DEVICE HAVING OPTICALLY VARIABLE DEVICE PORTION AND METHOD OF MAKING THE SAME - A security device includes a liquid crystal layer having one of a cholesteric phase, a nematic phase, and a cholesteric phase and having molecules therein aligned volumetrically in a predetermined manner to form a predetermined diffractive optical pattern or image. The molecules of the liquid crystal layer are volumetrically aligned in the predetermined manner through at least a portion of the thickness of the liquid crystal layer. | 08-21-2014 |
20150085237 | LIQUID CRYSTAL PHOTOALIGNMENT AGENT, LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE SAME - A liquid crystal photoalignment agent is provided. The liquid crystal photoalignment agent is a copolymer of a cyclobutane dianhydride (“CBDA”) and a CBDA derivative. | 03-26-2015 |
20150331287 | MULTI-DOMAIN LIQUID CRYSTAL DISPLAY PANEL AND METHOD FOR PREPARING THE SAME - Disclosed are a multi-domain liquid crystal display panel comprising an upper substrate and a lower substrate, wherein at least one of the substrates includes a glass substrate, a conventional alignment layer coated on the surface of the glass substrate, and a polymer alignment layer having a different alignment direction from that of the conventional alignment layer and a method for preparing the same. In the present invention, a smectic/cholesteric liquid crystal polymer is formed from the mixture of liquid crystal polymerizable monomers having smectic phase (Sm)-cholesteric phase (N*) transition, and multiple liquid crystal alignments in a single pixel are formed by adjusting the polymerization temperature, the thickness of the polymer layer, and the amount of the smectic liquid crystal polymerizable monomer, thereby realizing a multi-domain display by the subsequent masking treatment and ultraviolet irradiation. The method for preparing the same is simple, novel, low-cost, and easy to achieve. | 11-19-2015 |