Abstract: The present invention provides a liquid crystal display device capable of reducing the probability of image sticking. The liquid crystal display device comprises a pair of substrates, and a liquid crystal layer between the substrates, wherein at least one of the substrates comprises an alignment film and a polymer layer on the alignment film, and the polymer layer is formed by polymerization of a polymerizable monomer triggered by a polymerization initiator existing at a concentration of 1 mol % or lower relative to the polymerizable monomer.

Abstract: The present invention provides a liquid crystal display device producing less image sticking. The liquid crystal display device of the present invention comprises: a pair of substrates; and a liquid crystal layer between the substrates, wherein at least one of the substrates comprises an alignment film and a photopolymer film on the alignment film, the photopolymer film comprises polymers constituted by a photopolymerizable monomer, the photopolymerizable monomer includes two or more polymerizable functional groups, the polymerizable functional groups are bonded to each other through two or more aromatic rings, the aromatic rings include at least one naphthalene ring, and a bond between the naphthalene ring and another aromatic ring has a rotational degree of freedom.

Abstract: The invention relates to a liquid crystal display device including a first transistor, a plurality of sub-picture element electrodes formed in a picture element region, a control electrode formed in capacitance coupling with at least one of the plural sub-picture element electrodes, the control electrode being applied with a display voltage from the first transistor, and an auxiliary capacitance bus line held at a predetermined voltage level and constituting an auxiliary capacitance between the auxiliary capacitance bus line and the control electrode. A second transistor is provided between the sub-picture element electrode coupled with the control electrode by the capacitance coupling and the auxiliary capacitance bus line or between the sub-picture element electrode coupled with the control electrode by the capacitance coupling and the sub-picture element electrode connected to the first transistor.

Abstract: The present invention provides a liquid crystal display device capable of reducing the probability of image sticking. The liquid crystal display device includes a pair of substrates and a liquid crystal layer between the substrates. At least one of the substrates includes an alignment film and a polymer layer on the alignment film. The polymer layer includes monomer units derived from at least two species of polymerizable monomers. The at least two species of polymerizable monomers include at least two species of monomers selected from the group consisting of: specific polyfunctional monomers and specific monofunctional monomers.

Abstract: The present invention provides a liquid crystal display device used as a display part of an electronic apparatus which exhibits high brightness and favorable display quality. The liquid crystal display device includes a pair of substrates which are arranged to face each other in an opposed manner; vertical-alignment type liquid crystal which is sealed between the pair of substrates; a plurality of pixel regions, each pixel region including a sub pixel having a pixel electrode on one substrate and a sub pixel having a pixel electrode on one substrate, a slit formed between the pixel electrodes; and a singular point control part which includes projecting portions which are formed on end portions of the pixel electrodes on the slit-side and controls singular points of the liquid crystal.

Abstract: A liquid crystal display device including first and second substrates, with a liquid crystal layer including liquid crystal molecules between the first and second substrates. A first electrode formed on the first substrate and a second electrode formed on the second substrate. An alignment layer is formed on at least one of the substrates, and a polymer is formed on the alignment layer. The liquid crystal molecules are tilted when no voltage is applied to the liquid crystal molecules. The first electrode has a plurality of stripe-like electrode patterns, and the stripe-like electrode patterns have a width that is wider than a width of a space between adjacent strip-like electrode patterns.

Abstract: The present invention provides a liquid crystal display device and a composition for forming a liquid crystal layer, which can sufficiently reduce image sticking without increasing the number of production processes. The present invention directs to a liquid crystal display device including a pair of substrates, and a liquid crystal layer sandwiched between the pair of substrates, wherein at least one of the pair of substrates has a photopolymer film formed by polymerizing a photopolymerizable monomer, on a surface on the liquid crystal layer side, and the photopolymer film contains a first monomer unit having a structure in which three benzene rings are condensed.

Abstract: In accordance with a method of manufacturing a liquid crystal display device including, in a picture element, a first sub-picture-element region where a threshold voltage of the transmittance-applied voltage characteristic is Vth1 and a second sub-picture-element region where a threshold voltage of the transmittance-applied voltage characteristic is Vth2, liquid crystal, which polymerizable components are added to, is filled into the space between a first and a second substrates; thereafter, a voltage V1 slightly higher than the threshold voltage Vth1 is applied to a liquid crystal layer, and is held for a certain length of time; subsequently, a voltage V2 slightly higher than the threshold voltage Vth2 is applied to the liquid crystal layer, and is held for a certain length of time; additionally, a voltage V3 higher than a white-displaying voltage which is applied while the liquid crystal display device is in actual use is applied to the liquid crystal layer, and is held for a certain length of time; then, t

Abstract: A liquid crystal display device (100) according to the present invention includes: an active matrix substrate (220) having a pixel electrode (224); a counter substrate (240) having a counter electrode (244); a vertical-alignment type liquid crystal layer (260); and alignment sustaining layers (210, 230) provided between the active matrix substrate (220) and the liquid crystal layer (260) and between the counter substrate (240) and the liquid crystal layer (260). The alignment sustaining layers (210, 230) contain a polymerization product (poa) resulting from polymerization of a polyfunctional monomer. At least one of the active matrix substrate and the counter substrate further includes an alignment film (110, 120) located on the liquid crystal layer side, the alignment film (110, 120) containing polyimide (pi) and a polymerization product (pob) resulting from polymerization of a polyfunctional monomer.

Abstract: A liquid crystal display device including a first substrate including a first electrode and a second substrate including a second electrode which is bonded with the first substrate through an alignment film and a liquid crystal layer. There are polymer structures for aligning liquid crystal molecules in a predetermined direction formed in a liquid crystal of the liquid crystal layer. The liquid crystal molecules have pre-tilt angles substantially equal to each other between a display part and a peripheral part of the liquid crystal layer.

Abstract: An alignment film material according to the present invention includes: a precursor of a first polyimide (p1); a second polyimide (p2) and a precursor thereof; and a vinyl-type monomer. The vinyl-type monomer is represented by general formula (1) P1-A1-(Z1-A2)n-P2 (in general formula (1), P1 and P2 are, independently, acrylate, methacrylate, acrylamide or methacrylamide; A1 and A2 represent, independently, 1,4-phenylene, 1,4-cyclohexane or 2,5-thiophene, or naphthalene-2,6-diyl or anthracene-2,7-diyl; at least one of A1 and A2 is substituted by at least one fluorine group; and Z1 is a —COO— group, a —OCO— group, a —O— group, a —CONH— group or a single bond, where n is 0 or 1).

Abstract: The present invention provides a liquid crystal display device used as a display part of an electronic apparatus which exhibits high brightness and favorable display quality. The liquid crystal display device includes a pair of substrates which are arranged to face each other in an opposed manner; vertical-alignment type liquid crystal which is sealed between the pair of substrates; a plurality of pixel regions, each pixel region including a sub pixel having a pixel electrode on one substrate and a sub pixel having a pixel electrode on one substrate, a slit formed between the pixel electrodes; and a singular point control part which includes projecting portions which are formed on end portions of the pixel electrodes on the slit-side and controls singular points of the liquid crystal.

Abstract: A liquid crystal display device includes a pair of substrates; a liquid crystal sealed between the substrates; plural pixel regions each having a first pixel electrode formed on one of the pair of substrates and a second pixel electrode separated from the first pixel electrode; a TFT having a source electrode which is electrically connected to the first pixel electrode; a control capacitance portion which has a control capacitance electrode electrically connected to the source electrode and opposed to at least part of the second pixel electrode via an insulating film, and which thereby establishes capacitive coupling between the source electrode and the second pixel electrode; linear projections formed on the other substrate; and apertures formed in the first and second pixel electrodes so as to occupy parts of overlap regions of the linear projections and the first and second pixel electrodes as viewed perpendicularly to the substrate surfaces, for controlling the positions of singular points of alignment ve

Abstract: A vertically alignment mode liquid crystal display device having an improved viewing angle characteristic is disclosed. The disclosed liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage being applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.

Abstract: A liquid crystal display device according to the present invention is constituted of a TFT substrate and an opposing substrate which are arranged so as to be opposite to each other with a liquid crystal layer interposed therebetween. In addition, in the liquid crystal layer, formed is a polymer into which a polymer component added to liquid crystal is polymerized, and which determines directions in which liquid crystal molecules tilt when voltage is applied. In the TFT substrate, formed are a sub picture element electrode directly connected to a TFT and a sub picture element electrode connected to the TFT through capacitive coupling. In each of these sub picture element electrodes, formed are slits extending in directions respectively at angles of 45 degrees, 135 degrees, 225 degrees and 315 degrees to the X axis.

Abstract: A liquid crystal display device including first and second substrates, liquid crystal with negative dielectric anisotropy, a polymer which determines directions in which liquid crystal molecules tilt when voltage is applied, and a plurality of picture elements located on the first substrate. At least one of the picture elements includes a switching element, a first sub picture element electrode with a plurality of band-shaped microelectrode parts and a first connecting electrode part electrically connecting the microelectrode parts with one another, and a second sub picture element electrode including a plurality of band-shaped microelectrode parts and a second connecting electrode part electrically connecting the microelectrode parts of the second sub picture element electrode with one another. A voltage applied to the second sub picture element electrode is different from a voltage applied to the first sub picture element electrode.

Abstract: An alignment film (100) according to the present invention contains polyimide (102) and a polyvinyl compound (104), the polyvinyl compound (104) containing a polymerization product of a polyfunctional monomer having a plurality of vinyl groups. Preferably, each of the plurality of vinyl groups of the polyfunctional monomer is a part of a methacrylate group or an acrylate group. Preferably, the polyfunctional monomer has two or more directly-bonded ring structures or one or more condensed ring structures between the plurality of vinyl groups. Preferably, both of the polyimide (102) and the polyvinyl compound (104) are present on the surface and in the interior.

Abstract: A liquid crystal display device including a common electrode on a first substrate, a pixel electrode on a second substrate, and a liquid crystal layer between the first and second substrates. The device also include first and second alignment control structures formed, respectively, on the first and second substrates, for regulating azimuths of orientations of the liquid crystal when a voltage is applied thereto. The first and second alignment control structures each include a first line portion (extending in a first direction) and a second line portion (extending in a second direction, which is different from the first direction). The pixel electrode includes an edge extending in a direction different from both the first and second directions.

Abstract: A liquid crystal display device including a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, as well as a source electrode, a Cs intermediate electrode, and a pixel electrode formed on one of the pair of substrates. The liquid crystal display device also includes vertical alignment films formed on the pair of substrates and polymer layers formed on the vertical alignment films, wherein a contact hole, which connects the source electrode and the pixel electrode, and another contact hole, which connects the pixel electrode and the Cs intermediate electrode, are both formed at a liquid crystal domain boundary.

Abstract: The present invention provides a liquid crystal display device used as a display part of an electronic apparatus which exhibits high brightness and favorable display quality. The liquid crystal display device includes a pair of substrates which are arranged to face each other in an opposed manner; vertical-alignment type liquid crystal which is sealed between the pair of substrates; a plurality of pixel regions, each pixel region including a sub pixel having a pixel electrode on one substrate and a sub pixel having a pixel electrode on one substrate, a slit formed between the pixel electrodes; and a singular point control part which includes projecting portions which are formed on end portions of the pixel electrodes on the slit-side and controls singular points of the liquid crystal.