Abstract: A liquid crystal display device including a pair of substrates, a liquid crystal layer including liquid crystal molecules disposed between the substrates, an alignment layer disposed above at least one of the substrates, and a polymer disposed on the alignment layer. The device also includes scanning lines and signal lines, a TFT connected to one of the scanning lines and one of the signal lines, and a pixel electrode connected to the TFT and applying driving voltages to the liquid crystal molecules in an area defined by the pixel electrode. The polymer is formed through polymerization of monomers, different from monomers constituting the alignment layer, by active energy ray irradiation, or by both active energy ray irradiation and heat, and is arranged to align the liquid crystal molecules without rubbing so that the liquid crystal molecules in the area form multiple domains when driving voltages are applied from the TFT.

Abstract: A liquid crystal display device (100) includes: a pair of substrates (10, 20) each having an electrode; a liquid crystal layer (30) interposed between the pair of substrates; at least one photo-alignment layer (12) provided between at least one of the pair of substrates and the liquid crystal layer; and an alignment sustaining layer (14a, 14b) provided on the photo-alignment layer, the alignment sustaining layer containing a polymerization product generated through polymerization of at least one kind of bifunctional monomer. In the liquid crystal layer, at least two regions (R1, R2) are formed in one pixel region, the at least two regions (R1, R2) differing in terms of pretilt angles of liquid crystal molecules as regulated by the photo-alignment layer and the alignment sustaining layer.

Abstract: A liquid crystal display device including first and second substrates; liquid crystal contained between the substrates; a polymer which determines directions in which liquid crystal molecules tilt; a plurality of gate and data bus lines; and a plurality of picture elements. At least one of the picture elements includes a switching element, and first and second sub picture element electrodes. The first sub picture element electrode connects to the switching element and the second sub picture element electrode connects, via capacitive coupling, to the switching element. The first substrate further includes a control electrode that is connected to the switching element and the first sub picture element electrode. The control electrode is capacitively coupled to the second sub picture element electrode through an insulating film. The area of the second sub picture element electrode is larger than the area of the first sub picture element electrode.

Abstract: A liquid crystal display device including a pair of substrates in a spaced relationship with one another. A pair of alignment films are provided, one alignment film being formed on each substrate such that the alignment films face one another. A liquid crystal layer, including plural liquid crystals, is inserted between the pair of alignment films, wherein the alignment films impart a given pre-tilt angle to the liquid crystals. The alignment films are composed of a material containing at least two types of polymers having a prescribed initial alignment and different alignment variation rates in response to ultraviolet ray irradiation. The pre-tilt angle being adjusted, without rubbing the alignment films, through ultraviolet exposure of the alignment films.

Abstract: A liquid crystal display device (100) as an embodiment of the present invention has a plurality of pixels (P), each of which includes subpixels (Spa, Spb) that are defined by subpixel electrodes (124a, 124b), respectively. In each pixel (P), after TFTs (130a, 130b) that have been ON have turned OFF, the average potential of the subpixel electrode (124a) has varied from a potential corresponding to a source signal voltage that was supplied to a source line (Ls) when the TFTs (130a, 130b) were ON. Meanwhile, the average potential of the subpixel electrode (124b) corresponds to the source signal voltage that was supplied to the source line (Ls) when the TFTs (130a, 130b) were ON.

Abstract: When radiating light onto a liquid crystal composition containing a photosensitive material, the alignment of liquid crystal molecules is adjusted by applying a voltage to the liquid crystal composition layer, to achieve substantially orderly alignment of the liquid crystal molecules, or the alignment of the liquid crystal molecules is made uniform by adjusting the structure of the liquid crystal display device, or any display defect is driven out of the display area. When radiating light to the liquid crystal composition containing the photosensitive material, the alignment of the liquid crystal molecules can be adjusted so as to achieve substantially orderly alignment of the liquid crystal molecules, and the liquid crystal display device can thus be driven stably.

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: A liquid crystal display device including first and second substrate, with liquid crystal contained therebetween; a plurality of gate bus lines; a plurality of drain bus lines; and first and second sub picture element electrodes. The first sub picture element electrode is not in contact with the second sub picture element electrode. The first sub picture element electrode includes a first body portion and a plurality of first branches extending from the first body portion, with the first branches being separated from each other by a plurality of first slits. The second sub picture element electrode includes a second body portion and a plurality of second branches extending from the second body portion, with the second branches being separated from each other by a plurality of second slits.

Abstract: A polymerizable compound in a liquid crystal composition is polymerized in a state that liquid crystal molecules present in a gap between a pixel electrode and at least either one of signal electrodes and scanning electrodes are tilted in a direction from the at least either one of the signal electrodes and the scanning electrodes toward the pixel electrode. Preferably, the amount of the polymerizable compound remaining in the liquid crystal phase after the polymerization is not more than 0.05 parts by weight per 100 parts by weight of the liquid crystal. In a seal section surrounding the liquid crystal layer, a second seal wall is preferably provided at a position opposite to the liquid crystal injection inlet in the non-display section.

Abstract: A polymerizable compound in a liquid crystal composition is polymerized in a state that liquid crystal molecules present in a gap between a pixel electrode and at least either one of signal electrodes and scanning electrodes are tilted in a direction from the at least either one of the signal electrodes and the scanning electrodes toward the pixel electrode. Preferably, the amount of the polymerizable compound remaining in the liquid crystal phase after the polymerization is not more than 0.05 parts by weight per 100 parts by weight of the liquid crystal. In a seal section surrounding the liquid crystal layer, a second seal wall is preferably provided at a position opposite to the liquid crystal injection inlet in the non-display section.

Abstract: A liquid crystal display device including a liquid crystal layer sealed between a pair of substrates; an alignment layer formed on at least one of the substrates; a polymer formed of a photopolymerized material on the alignment layer; and a pixel electrode, including an electrode portion and a plurality of slits, formed on one of the substrates. The device also includes a source electrode and a Cs intermediate electrode, having the same potential as the pixel electrode, formed between the pixel electrode and one of the substrates; and a Cs bus line located between the Cs intermediate electrode and one of the substrates. The source electrode is formed along a first liquid crystal domain boundary, between the pixel electrode and one of the substrates. The liquid crystal layer contains part of a photopolymerizable monomer, which is a source material of the photopolymerized material.

Abstract: A TFT substrate (110) of a liquid crystal display device(100) includes a common electrode (112) and a drain electrode (114) facing the common electrode (112) via an insulating layer (113) and provided with an opening (114a) for making an electric field generated between the common electrode (112) and the drain electrode (114) supplied into a liquid crystal layer (130). Since the opening (114a) for making an electric field supplied into the liquid crystal layer (130) is provided in the drain electrode (114) made from metal, the opening (114a) can be formed more finely than before. Thus, a liquid crystal display which can more surely control spray-to-bend transition can be attained.

Abstract: A liquid crystal display device including first and second substrates with a liquid crystal layer therebetween. A first electrode is formed on the first substrate, and a second electrode is formed on the second substrate. The first electrode is divided into at least two regions such that at least two domains of different liquid crystal orientation directions are defined within a single pixel. A first of the at least two regions and a second of the at least two regions are located in a diagonal manner with respect to each other, and each include a slit pattern. A polymer, formed from a polymerizable compound that has been polymerized, is formed between the first and second substrates, wherein the amount of the polymerizable compound remaining in the liquid crystal layer after the polymerization is not more than 0.05 parts by weight per 100 parts by weight of the liquid crystal layer.

Abstract: A liquid crystal display device including first and second substrates with liquid crystal contained therebetween, and a plurality of picture elements located on the first substrate. Each of the picture elements is defined between a pair of gate bus lines and a pair of data bus lines. At least one of the picture elements includes a switching element connected to one of the data bus lines, a first sub picture element electrode, and a second sub picture element electrode. At least one of the first and second sub picture element electrodes has a body portion and a plurality of branches that extend from the body portion. A neighboring two of the branches are parallel with each other. The first sub picture element electrode connects to the switching element, and the second sub picture element electrode connects, via capacitive coupling, to the switching element.

Abstract: A substrate for a liquid crystal display including a plurality of gate bus lines and a plurality of data bus lines that cross the gate bus lines, as well as a thin film transistor connected to one of the data bus lines. The display also includes a first electrode with a body portion and a plurality of branches extending from the body portion, wherein at least some of the branches include a first branch portion, which extends from the body portion and defines a first angle, and a second branch portion, which extends from the first branch portion, and which defines a second angle. The first angle is greater than said second angle, and both angles are between 0° and 90° Also included is a second electrode that overlaps at least a portion of the first electrode, and an insulation film between the first and second electrodes.

Abstract: A liquid crystal display includes a liquid crystal sealed between two substrates, and a polymer layer for regulating a pretilt angle of liquid crystal molecules and/or tilt directions at a time of driving. One of the substrates has a color filter layer formed on a side of the one substrate. A plurality of stripe-like electrode patterns are provided on the color filter layer. The patterns are periodically arranged so that when polymerizable components mixed in the liquid crystal layer are polymerized to form the polymer layer while a voltage is applied to the liquid crystal layer between the electrode patterns and a second electrode on the other substrate, liquid crystal molecules in the liquid crystal layer are aligned in the extending directions of stripe-like electrode patterns.

Abstract: A liquid crystal display device comprising a liquid crystal layer including liquid crystal molecules provided between a first substrate and a second substrate; pixels forming a display area; electrodes for applying a voltage across the liquid crystal layer within each of the pixels; a plurality of domain regulating structures for dividing orientations of the liquid crystal molecules and forming multiple domains within each of the pixels, when a predetermined voltage is applied across the liquid crystal layer within each of the pixels; and a structure which is formed in an outer area located next to the display area and is substantially the same as at least one of the plurality of domain regulating structures.

Abstract: The invention relates to a liquid crystal display device and provides a liquid crystal display device which can achieve high display quality. A liquid crystal display device is provided with first and second TFTs each having a gate electrode connected to an nth gate bus line and a drain electrode connected to a drain bus line; a first pixel electrode connected to a source electrode of the first TFT; a second pixel electrode connected to a source electrode of the second TFT; a third TFT having a gate electrode connected to an (n+1)th gate bus line and a source electrode connected to the second pixel electrode; and a buffer capacitance portion having a buffer capacitance electrode which is formed in the same layer as the first and second pixel electrodes and is connected to a drain electrode of the third TFT and a buffer capacitance electrode connected to a storage capacitance bus line.

Abstract: A liquid crystal display device, including a pair of substrates, a liquid crystal layer sealed between the pair of substrates, color filters of different colors formed on one of the substrates, and a polymer layer for aligning liquid crystal molecules and formed between the pair of substrates. The pre-tilt angles of the liquid crystal molecules are different among respective pixels where the color filters of different colors are formed.

Abstract: A liquid crystal display in which a wide angle of view is obtained and a response time at a halftone can be shortened by regulating an alignment orientation of a liquid crystal by the use of a polymer fixation system in which a liquid crystal layer containing a polymerizable component is scaled between substrates. The polymerizable component is polymerized while a voltage is applied to the liquid crystal layer to fix a liquid crystal alignment. A plurality of stripe-like electrode patterns, in which a pattern width is formed to be wider than a width of a space, are arranged so that the liquid crystal molecules are aligned in a longitudinal direction of the pattern when the polymer is formed by solidifying a polymerizable component mixed in the liquid crystal layer while a voltage is applied to the liquid crystal layer.