Patent application number | Description | Published |
20100277179 | EVALUATION METHOD FOR ION BEHAVIOR AND EVALUATION DEVICE FOR ION BEHAVIOR - An evaluation device of ion behavior includes: a voltage oscillator ( | 11-04-2010 |
20120194771 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING SAME - The present invention provides a liquid crystal display device capable of preventing image sticking on a display caused by a residual DC voltage in various display modes, and a method for manufacturing thereof. The liquid crystal display device of the present invention includes a pair of substrates, a liquid crystal layer provided between the substrates, and an alignment film provided between the liquid crystal layer and at least one of the substrates, wherein the alignment film is formed by reacting an epoxy compound with a carboxyl group of one of a polyamic acid and a polyimide having a degree of imidization of less than 100%. | 08-02-2012 |
20120314166 | LIQUID-CRYSTAL DISPLAY DEVICE, PROCESS FOR PRODUCING LIQUID-CRYSTAL DISPLAY DEVICE, AND COMPOSITION FOR FORMING ALIGNMENT FILM - The present invention provides a liquid-crystal display device that can efficiently provide both effects of improvement in a response time and suppression of image sticking in a display screen. The liquid-crystal display device according to the present invention is a liquid-crystal display device including a pair of substrates each including an electrode and an alignment film and a liquid crystal layer interposed between the pair of substrates, wherein the alignment film comprises a copolymer comprising a first monomer unit including a first side chain including a photoreactive functional group and a second monomer unit including a second side chain including a repeated structure. | 12-13-2012 |
20130010245 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR PRODUCING SAME - The present invention provides a liquid crystal display device that can prevent a decrease in the VHR and image sticking on the display screen because of residual DC voltage, and also can produce favorable alignment conditions; and a production method thereof. The liquid crystal display device of the present invention includes: a pair of substrates; a liquid crystal layer that contains liquid crystal molecules and is disposed between the pair of substrates; and an alignment film that is disposed on a liquid crystal layer side of at least one of the pair of substrates, the alignment film containing a polyamic acid or a polyimide with an imidization ratio of less than 100%, the liquid crystal display device including a monomolecular film on the alignment film. | 01-10-2013 |
20130069855 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device ( | 03-21-2013 |
20130128201 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR PRODUCING SAME - A liquid crystal display device ( | 05-23-2013 |
20130128202 | LIQUID CRYSTAL DISPLAY DEVICE AND PROCESS FOR PRODUCING LIQUID-CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device in which a high wettability can be achieved, and also image sticking seldom occurs. The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light, the alignment film includes a polymer compound having a main chain that contains an imide structure, and the main chain has an imidization ratio of less than 50%. | 05-23-2013 |
20130128203 | LIQUID CRYSTAL DISPLAY DEVICE AND PROCESS FOR PRODUCING LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device in which a high voltage holding ratio is maintained, and also image sticking seldom occurs. The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light, the alignment film includes a polymer compound having a main chain that contains an imide structure, and the main chain has an imidization ratio of 50% or more. | 05-23-2013 |
20130128204 | LIQUID CRYSTAL DISPLAY DEVICE AND PROCESS FOR PRODUCING LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device in which image sticking seldom occurs. The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, and the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light. | 05-23-2013 |
20130135570 | COMPOSITION FOR FORMING LIQUID CRYSTAL LAYER, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR PRODUCING LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a composition for forming a liquid crystal layer from which a liquid crystal display device hardly generating image sticking can be obtained. The composition for forming a liquid crystal layer according to the present invention contains a liquid crystal material and one or two or more monomers, wherein at least one of the monomers is a phenanthrene derivative represented by the following chemical formula (1): | 05-30-2013 |
20130169906 | LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device including a polymer layer which is placed on an alignment layer and which controls the alignment of liquid crystal molecules adjacent thereto. The polymer layer is one formed by polymerizing a monomer added to the liquid crystal layer. The monomer is a compound represented by the following formula: | 07-04-2013 |
20130169916 | COMPOSITION FOR FORMING LIQUID CRYSTAL LAYER, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR PRODUCING LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a composition for forming a liquid crystal layer which enables to achieve takt time reduction and high display quality. The liquid crystal display device according to the present invention includes a liquid crystal material, and a monomer, the monomer being a compound having a structure that generates ketyl radicals when undergoing a hydrogen abstraction reaction caused by exposure to light. | 07-04-2013 |
20130271712 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device that rarely causes burn-in at high throughput. The present invention provides a liquid crystal display device that includes a pair of substrates and a liquid crystal layer between the pair of substrates, wherein at least one of the pair of substrates includes an alignment layer and a polymer layer for controlling the alignment of adjacent liquid crystal molecules, the polymer layer being disposed on the alignment layer, the polymer layer has a structure containing at least three condensed benzene rings, and the alignment layer is covalently bonded to the polymer layer. | 10-17-2013 |
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 |
20140168586 | LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR PRODUCING LIQUID CRYSTAL DISPLAY DEVICE - Several aspects of the present invention provide a liquid crystal composition capable of shortening the takt time and achieving excellent display qualities, and a liquid crystal display device and a method for producing a liquid crystal display device which use the liquid crystal composition. The liquid crystal composition of several aspects of the present invention includes a liquid crystal material and one or more kinds of radical polymerizable monomers, at least one kind of the radical polymerizable monomers being a compound generating radicals through a self-cleavage reaction by exposure to light and having at least two radical polymerizable groups. | 06-19-2014 |
20140176888 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device which enables to reduce the occurrence of image sticking without deteriorating the electric properties, and a method for manufacturing a liquid crystal display device which enables to reduce the occurrence of image sticking. The liquid crystal display device of the present invention includes a pair of substrates, a liquid crystal layer disposed between the pair of substrates, an alignment film formed on at least one of the pair of substrates, and a polymer layer formed on the alignment film and controlling the alignment of liquid crystal molecules which are adjacent to the polymer layer, wherein the polymer layer is formed by polymerization of one or more kinds of monomers added in the liquid crystal layer, and at least one of the one or more kinds of monomers is a monomer polymerizable upon exposure to visible light. | 06-26-2014 |
20140285762 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR PRODUCING LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device in which a display defect is less likely to occur even when an alignment layer is not formed. The liquid crystal display device of the present invention includes a pair of substrates and a liquid crystal layer held between the pair of substrates, at least one of the substrates including an electrode, and the liquid crystal layer having negative dielectric anisotropy, in which each of the pair of substrates includes a silane coupling layer on a surface of the corresponding substrate, a polymer layer configured to vertically align adjacent liquid crystal molecules is formed on a surface of the silane coupling layer, the polymer layer is formed by the polymerization of at least one monomer contained in a liquid crystal composition, and the at least one monomer contains a compound represented by the chemical formula (1). | 09-25-2014 |
20150015826 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING SAME - The present invention provides a liquid crystal display device that can suppress image sticking, ensure the long-term reliability, and improve the display quality; and a method of producing the same. The present invention provides a liquid crystal display device including: a first substrate; a second substrate; a photoalignment film provided on at least one of the first and second substrates; a polymer layer provided on the photoalignment film; and a liquid crystal layer provided between the first and second substrates, the polymer layer containing a polymer having a monomer unit derived from two or more kinds of polymerizable monomers, the two or more kinds of polymerizable monomers including at least a monomer that increases the polymerization rate as compared with a conventional case and a monomer that improves the residual DC voltage and prevents lowering of the VHR. | 01-15-2015 |
20150062518 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a substrate; a liquid crystal layer containing a liquid crystal material; and a first layer formed on the substrate, the first layer being configured to control the alignment of liquid crystal molecules, the first layer being placed between the substrate and the liquid crystal layer, and being formed by polymerization of two or more kinds of radical polymerizable monomers in the liquid crystal layer. | 03-05-2015 |
20150085236 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device that is less prone to display defects and a decrease in the voltage holding ratio regardless of the presence or absence of an alignment film. The liquid crystal display device includes: a pair of substrates; a liquid crystal layer containing a liquid crystal material between the substrates; and a polymer layer for controlling alignment of liquid crystal molecules on a surface of at least one of the substrates, the substrates being substantially free of an alignment film in outermost surfaces thereof, the polymer layer being formed by polymerization of at least two kinds of radical polymerizable monomers in the liquid crystal layer, at least one of the radical polymerizable monomers being a compound having a structure that creates a ketyl radical as a result of hydrogen abstraction induced by light radiation. | 03-26-2015 |