Patent application number | Description | Published |
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 |
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 |
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 |
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 |
20130188119 | LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device in which display defects are not easily generated even when an alignment film is not formed. The liquid crystal display device of the present invention includes a pair of substrates; and a liquid crystal layer that is held between the pair of substrates, wherein both substrates of the pair of substrates do not substantially include an alignment film, at least one substrate of the pair of substrates includes a polymer layer that controls the alignment of liquid crystal molecules adjacent thereto, the polymer layer is formed by polymerization of monomers of at least one kind included in a liquid crystal layer composition, and the monomers of at least one kind contain a compound represented by the following formula (1): | 07-25-2013 |
20140002782 | LIQUID CRYSTAL DISPLAY DEVICE | 01-02-2014 |
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 |