Abstract: 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.

Abstract: 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.

Abstract: 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%.

Abstract: To provide a liquid crystal display panel that has high contrast and reduced display deficiency, a liquid crystal display panel of the present invention includes: a pair of substrates (1) and (2) facing each other; and a liquid crystal layer (3) sandwiched between the pair of substrates (1) and (2), the pair of substrates (1) and (2) being provided with a pair of respective alignment films (4) and (5) formed thereon and facing each other, the pair of alignment films (4) and (5) being provided with respective polymer films (6) and (7) formed thereon and each made of a monomer in the liquid crystal layer (3), the pair of alignment films (4) and (5) containing a macromolecular compound having a functional group represented by at least one of General Formulae (1) through (5), the liquid crystal layer (3) containing a polymerizable monomer represented by at least one of General Formulae (6) through (8), the polymer films (6) and (7) each being (i) made of the polymerizable monomer represented by at least one of Ge

Abstract: 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.

Abstract: 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%.

Abstract: To provide a liquid crystal display panel that has high contrast and reduced display deficiency, a liquid crystal display panel of the present invention includes: a pair of substrates (1) and (2) facing each other; and a liquid crystal layer (3) sandwiched between the pair of substrates (1) and (2), the pair of substrates (1) and (2) being provided with a pair of respective alignment films (4) and (5) formed thereon and facing each other, the pair of alignment films (4) and (5) being provided with respective polymer films (6) and (7) formed thereon and each made of a monomer in the liquid crystal layer (3), the pair of alignment films (4) and (5) containing a macromolecular compound having a side chain containing a fluorine atom, the liquid crystal layer (3) containing a polymerizable monomer represented by at least one of General Formulae (1) through (3), the polymer films (6) and (7) each being made of the polymerizable monomer represented by at least one of General Formulae (1) through (3), the polymer fil

Abstract: A liquid crystal display device includes source bus lines, gate bus lines intersecting with the source bus lines, pixels arranged in a matrix to correspond to intersections between the gate bus lines and the source bus lines, each of the pixels including a TFT, a pixel electrode, a common electrode, and a liquid crystal layer, and a potential control section for controlling the potential of the common electrode. The potential control section sets a voltage, obtained by reducing potential Vcenf255 of the common electrode at which flicker is minimum in display of gray level as black display and gray level as white display alternately every pixel by a predetermined voltage, as center voltage Vcen255 of the potential of the common electrode in display of gray level for all the pixels.

Abstract: To provide a liquid crystal display panel that has high contrast and reduced display deficiency, a liquid crystal display panel of the present invention includes: a pair of substrates (1) and (2) facing each other; and a liquid crystal layer (3) sandwiched between the pair of substrates (1) and (2), the pair of substrates (1) and (2) being provided with a pair of respective alignment films (4) and (5) formed thereon and facing each other, the pair of alignment films (4) and (5) being provided with respective polymer films (6) and (7) formed thereon and each made of a monomer in the liquid crystal layer (3), the pair of alignment films (4) and (5) containing a macromolecular compound having a functional group represented by at least one of General Formulae (1) through (5), the liquid crystal layer (3) containing a polymerizable monomer represented by at least one of General Formulae (6) through (8), the polymer films (6) and (7) each being (i) made of the polymerizable monomer represented by at least one of Ge

Abstract: An object of the present invention is to provide a liquid crystal display device in which a risk of generation of a image sticking is reduced. A liquid crystal display device (100) of the present invention includes a pair of glass substrates (11) and (21), a liquid crystal layer (30) provided between the pair of glass substrates (11) and (21), an alignment layer (23) provided between the liquid crystal layer (30) and at least one of the pair of glass substrates (11) and (21), and an alignment sustaining layer (24) for defining a direction in which liquid crystal molecules constituting the liquid crystal layer (30) are inclined, the alignment sustaining layer (24) being provided between the alignment layer (23) and the liquid crystal layer (30), the alignment layer (23) and the alignment sustaining layer (24) being covalently bound to each other.

Abstract: An object of the present invention is to provide a transflective type LCD device in which each of a transmissive area and a reflective area can be driven in an OCB mode, and it is possible to prevent lowering of transmittance and reflectance, and to prevent a pixel from darkening in a case where each of the transmissive area and the reflective area is driven in an OCB mode. The liquid crystal display device of the present invention includes, in each pixel (11), a single nucleus generation section for generating a bend nucleus for promoting a transition of liquid crystal molecules of the liquid crystal layer into a bend alignment. Application of a voltage to the liquid crystal molecules of the liquid crystal layer in the transmissive area and the reflective area carries out a transition from a spray alignment into a bend alignment in response to an applied voltage.

Abstract: An object of the present invention is to provide a transflective type LCD device in which each of a transmissive area and a reflective area can be driven in an OCB mode, and it is possible to prevent lowering of transmittance and reflectance, and to prevent a pixel from darkening in a case where each of the transmissive area and the reflective area is driven in an OCB mode. The liquid crystal display device of the present invention includes, in each pixel (11), a single nucleus generation section for generating a bend nucleus for promoting a transition of liquid crystal molecules of the liquid crystal layer into a bend alignment. Application of a voltage to the liquid crystal molecules of the liquid crystal layer in the transmissive area and the reflective area carries out a transition from a spray alignment into a bend alignment in response to an applied voltage.

Abstract: There are provided areas overlapping at least parts of data bus lines (6) with an intervening insulation layer and one or more holes (3a) arranged in a longitudinal direction of pixel electrodes (3) in areas overlapping the data bus lines (6), in a vertical direction to a TFT substrate. There is also provided an electric potential difference generating section for generating an electric potential difference between the pixel electrodes (3) and the data bus lines (6). Common electrodes (7) for providing auxiliary capacitance are provided on surfaces of the pixel electrodes (3) which do not face the liquid crystal with an insulation layer intervening therebetween. The data bus lines (6) are driven separately from the common electrodes (7). Therefore, nuclei for a bend transition are effectively produced around the holes (3a). The time taken by the bend transition to spread throughout the dot from the nuclei is equal to the time taken to spread the length of the latitudinal direction of each pixel electrode.