Abstract: In an active matrix liquid crystal display device having a thin film transistor array substrate (250) comprising a plurality of scan lines formed on an insulating substrate (100), a plurality of signal lines formed to cross the scan lines, thin film transistors formed near intersections between the scan lines and signal lines, respectively, pixel electrodes connected to one electrodes of the thin film transistors, respectively, and additional capacity portions connected to pixel electrodes (5) connected to source electrodes (4) of the thin film transistors, respectively; in order to provide a higher contrast and to allow driving at a lower voltage, a part of the additional capacity portion is formed, via insulating film (115) and semiconductor (120), between the pixel electrode (5) and that scan line (11) which is connected to a gate electrode (1) of the thin film transistor for switching the pixel electrode (5).

Abstract: A reflective-type liquid crystal display is configured so that a liquid crystal is sandwiched between a Thin Film Transistor (TFT) substrate and a facing substrate. A polarizer is formed on a side opposite to a side being in contact with the liquid crystal on a second transparent insulating substrate with a layer-stacke ¼ wavelength plate constructed by combining a ½ wavelength phase difference film with a ¼ wavelength phase difference film. Both films are made from a norbornene polymer and are sandwiched between the polarizer and second transparent insulating substrate. A permittivity anisotropy of the liquid crystal is set to be about 6 or more.

Abstract: A liquid crystal display has a first substrate formed with a picture character pixel electrode for displaying a picture character represented by a fixed pattern, a second substrate formed with a common electrode opposite to the picture character pixel electrode, and a liquid crystal layer sandwiched between the first substrate and the second substrate. The picture character pixel electrode is formed on an interlayer insulating film, and is connected to a picture character signal electrode formed below the interlayer insulating film through a plurality of contact holes formed through the interlayer insulating film.

Abstract: A liquid crystal display device with improved image quality by reducing emphasized separation line corresponding to a divisional position, vertical faint stripes and lateral crosstalk caused by the displacement of divisional exposure of light in manufacturing a wired substrate of a liquid crystal display panel installed in an IPS liquid crystal display device. Compensating capacity patterns are provided to make parasitic capacities invariable irrespective of positions whether or not it is at the divisional position or the others. It is concerned with capacity between signal wire and its nearest common electrode wire formed on a substrate of a driving element side manufactured through the divisional light-exposing and installed in an active matrix display device. A liquid crystal material is driven by an electric field parallel to the substrate surface.

Abstract: Band-shaped data lines are arranged in parallel with each other so as to cross address lines via a gate insulating film formed over the address lines. An upper insulating film is formed over the data lines, and pixel electrodes are formed on the upper insulating film. Storage capacitance section includes common electrode and storage capacitance electrode. The common electrode is extended from the address line of adjacent pixel region. The storage capacitance electrode sandwiches the gate insulating film with the common electrode to store capacitance therebetween. The storage capacitance electrodes and the pixel electrodes are connected to each other via conductive through hole piercing through the upper insulating film. Besides, the storage capacitance electrode, source electrode of the thin film transistor section and a wiring connecting them are integrally formed of the same metal films.

Abstract: An in-line switching mode LCD panel has three groups of common electrode lines corresponding to three colors defined by color layers in the pixels. The potentials of the groups of the common electrode lines are adjusted independently of one another so that the flicker level for the corresponding pixels assumes a minimum by compensating the difference in the feed-through voltage between the pixels.

Abstract: An active matrix substrate plate having superior properties is manufactured at high yield using four photolithographic fabrication steps. In step 1, the scanning line and the gate electrode extending from the scanning line are formed in the glass plate. In step 2, the gate insulation layer and the semiconductor layer comprised by amorphous silicon layer and n+ amorphous silicon layer is laminated to provide the semiconductor layer for the TFT section. In step 3, the transparent conductive layer and the metallic layer are laminated, and the signal line, the drain electrode extending from the signal line, the pixel electrode and the source electrode extending from the pixel electrode are formed, and the n+ amorphous silicon layer of the channel gap is removed by etching. In step 4, the protective insulation layer is formed, and the protective insulation layer and the metal layer above the pixel electrode are removed by etching.

Abstract: An IPS (In-Plane Switching) liquid crystal display is disclosed that maintains excellent display uniformity and high aperture ratio as well as high yield during fabrication, and that includes a first transparent substrate, a second transparent substrate arranged to confront the first transparent substrate and provided with a second alignment layer, and a liquid crystal component sealed between the first transparent substrate and second transparent substrate. The first transparent substrate is provided with: a transparent insulating substrate, pixel electrodes and common electrodes that are arranged alternately and substantially parallel to each other on the transparent insulating substrate, a plurality of pixels arranged in matrix form, scan lines and switching elements for controlling the electric field applied to the pixel electrodes, signal lines, and a first alignment layer.

Abstract: An active matrix liquid crystal display device includes a pair of substrates that seal a liquid crystal, thin film transistors, display pixel electrodes, m/s (s and m are natural numbers that render m/s a natural number) drain bus lines, s×n gate bus lines, and a controller. The thin film transistors are arranged on one of said substrates to form a matrix of n rows×m columns. The display pixel electrodes are connected to source electrodes of said thin film transistors in one-to-one correspondence. The drain bus lines are connected to drain electrodes of the matrix-type thin film transistors in s-to-1 correspondence. The gate bus lines are connected to gate electrodes of the thin film transistors on each row in one-to-one correspondence. The controller selects n gate bus lines in each of s frames starting from an (s×t(t is an arbitrary positive integer)+1)th frame and ended with an (s×t+s)th frame to perform one-screen display with the s frames.

Abstract: A liquid crystal display apparatus includes a first substrate, a second substrate and a liquid crystal layer interposed between the first substrate and the second substrate. The first substrate includes on a surface facing the second substrate, a plurality of gate bus lines extending into a row direction, a plurality of drain bus lines extending into a column direction, and a plurality of pixels arranged in matrix.

Abstract: An active matrix substrate plate having superior properties is manufactured at high yield using four photolithographic fabrication steps. In step 1, the scanning line and the gate electrode extending from the scanning line are formed in the glass plate. In step 2, the gate insulation layer and the semiconductor layer comprised by amorphous silicon layer and n+ amorphous silicon layer is laminated to provide the semiconductor layer for the TFT section. In step 3, the transparent conductive layer and the metallic layer are laminated, and the signal line, the drain electrode extending from the signal line, the pixel electrode and the source electrode extending from the pixel electrode are formed, and the n+ amorphous silicon layer of the channel gap is removed by etching. In step 4, the protective insulation layer is formed, and the protective insulation layer and the metal layer above the pixel electrode are removed by etching.

Abstract: This invention provides a liquid-crystal display where both pixel electrode 14 and common electrode 3 for controlling a liquid-crystal layer 40 are disposed above a color filter 10 covered with a shield electrode 20.

Abstract: A reflection plate is formed so as to have a wavy surface, and to have uneven distribution of normal line directions of the surface in terms of a specific azimuth angle. The wavy surface is formed due to line-shaped protruding patterns and an insulation film layer. The protruding patterns intersect with one another to form concave portions each having a shape of a closed figure. The protruding patterns are formed by patterning, such that they have almost uniform thickness.

Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer sandwiched between the first and second substrates. The first substrate includes first to N-th 1st retardation plates arranged on the first transparent substrate, and the second substrate includes first to N-th 2nd retardation plates arranged on the second transparent substrate. Assuming that a retardation plate among the first to N-th 1st retardation plates has an optical axis arranged at a first angle relative to a reference direction and a retardation plate among the first to N-th 2nd retardation plates, corresponding to the retardation plate among the first to N-th 1st retardation plates, has an optical axis arranged at a second angle relative to the reference direction, the first and second angles are different from each other by about 90 degrees.

Abstract: A reflective-type liquid crystal display and a method for manufacturing the same are provided which are capable of preventing development of unwanted colors on a display when a black color is displayed and of stably achieving high contrast.

Abstract: First and second transparent substrates which are arranged to face each other are provided to a color liquid crystal display panel. A liquid crystal layer is provided between the first and the second transparent substrates. A plurality of thin film transistors are provided on the first transparent substrate. An insulation film provided on the first transparent substrate so as to cover the thin film transistors. A color filter which includes first to third color layers stacked on the insulation layer is provided. A contacting color layer is provided on the insulation film in a region above the thin film transistors. The contacting color layer has at least one color layer selected from a group of composed of the first to third color layers. A black matrix is provided on the contacting color layer. The black matrix has opening portions for transmitting light from the color filter.

Abstract: In a display device, electrodes of both an opposing-side substrate and a TFT-side substrate are made of transparent metals to improve the display device in light transmission rate. The display device operates in the same manner as that of a so-called In-Plate Switching type of liquid crystal display device. Sandwiched between the substrates is a liquid crystal having a negative dielectric anisotropy. A transparent electrode is formed on an opposing surface of the opposing-side substrate to face the TFT-side substrate. Pixel electrode portions and an interlayer insulation film are formed on an opposing surface of the TFT-side substrate to face the opposing-side substrate. The interlayer insulation film has its slits aligned in position with the pixel electrode portions.

Abstract: A liquid crystal display panel is provided to an active matrix type liquid crystal display. A TFT side substrate and an opposite side substrate are provided to the liquid crystal display panel. A liquid crystal layer is provided between these substrates. The product (retardation) “&Dgr;n·d” of the refractive index anisotropy &Dgr;n of a liquid crystal material in the liquid crystal layer and the thickness d of the liquid crystal layer is 0.12 to 0.18 &mgr;m.

Abstract: A liquid crystal display device comprises a transparent insulator substrate, switching elements which are formed on the transparent insulator substrate, a passivation layer for passivating the switching elements, color filters of prescribed colors which are formed on the passivation layer so that no color filter will be formed in areas around contact holes, black matrixes as shields for preventing light leakage which are formed on the passivation layer after the formation of the color filters so as to cover at least the switching elements and so that no black matrix will be formed in areas around the contact holes, an overcoat layer which is formed on the color filters and the black matrixes, pixel electrodes formed on the overcoat layer, lead electrodes of the switching elements for being connected to corresponding pixel electrodes, and contact holes which are formed through the overcoat layer and the passivation layer for establishing connection between the pixel electrodes and lead electrodes of the switch

Abstract: This invention provides a color liquid-crystal panel comprising the first substrate having pixel electrodes on which are formed a thin-film transistor as a switching element for each pixel, which is covered by a passivation film, and a color filter layer and a black matrix on the passivation film, which are covered by an overcoat layer, and where the first substrate and the second substrate having a transparent common electrode facing the first substrate are put together via a sealer, forming an inner space which is filled with a liquid-crystal material, wherein a frame-shaped black matrix is formed on the first substrate, covering the periphery of the first substrate.