Abstract: For suppressing a brightness irregularity and contrast deterioration in a displaying screen of a liquid crystal display device which comprises a pair of substrates at least one of which is transparent, at least two kinds of color filters being formed on one of the pair of substrates, a black matrix being provided between the color filters, a group of electrodes being formed on either one of the pair of substrates, a layer of liquid crystal compounds sealed between the pair of substrates, due to noise electrical field appearing therein or unevenness of a cell gap between the pair of substrates, the present invention provides a columnar spacer having smaller resistivity than that of the liquid crystal compounds in a part of an area on the one of the pair of substrates which is hidden by the black matrix.

Abstract: There is provided a liquid crystal display device in which light leaks near spacers are prevented. The liquid crystal display device controls the optical transmissivity of a liquid crystal layer interposed between substrates disposed in opposition to each other, by means of an electric field generated in the layer-thickness direction of the liquid crystal layer, includes spacers formed on a liquid-crystal-side surface of one of the substrates, signal lines formed on a liquid-crystal-side surface of the other substrate, an insulating film formed to cover the signal lines, and electrodes formed on the upper surface of the insulating film, each of which serves as one electrode contributing to control of the optical transmissivity of the liquid crystal layer.

Abstract: A liquid crystal display device can suppress the local temperature elevation of a liquid crystal in the vicinity of drivers. On a liquid-crystal-side surface of one substrate out of substrates which are arranged to face each other in an opposed manner while sandwiching a liquid crystal therebetween, a switching element which is operated in response to scanning signals from a gate signal line, a pixel electrode to which video signals from a drain signal line are supplied via the switching element, and a reference electrode which generates an electric field between the reference electrode and the pixel electrode are mounted on each pixel region of the liquid-crystal-side surface. The video signals from the drain signal line are generated by a driver chip mounted on one substrate. A light transmittivity of the liquid crystal layer is set to take a minimum value when a voltage is not applied between the pixel electrode and the reference electrode.

Abstract: An active matrix liquid crystal display device having first and second substrates, a liquid crystal layer disposed between the first and second substrates, plural image signal lines, counter-voltage signal lines and scan signal lines being formed on the first substrate, and each pixel region being formed by adjacent image signal lines and adjacent scan signal lines having at least an active device. At least a pixel electrode connected to the active device and at least a counter electrode in each pixel, and the pixel electrode and the counter electrode are on the first substrate. Adjacent counter-voltage signal lines are connected by a counter electrode via more than one thorough-hole formed in a protective film.

Abstract: An active-matrix type liquid crystal display device having transparent substrates, a liquid crystal layer, pixel areas arranged on the surfaces of the transparent substrates on the liquid crystal side, and display electrodes, reference electrodes, scan lines, video signal lines, reference signal lines and active devices arranged in the pixel areas. A voltage is applied between the display electrodes and the reference electrodes to produce an electric field parallel to the transparent substrates in the liquid crystal layer, and on one of the transparent substrates the reference electrodes are arranged on both sides of the video signal lines, and on the other transparent substrate a shield electrode which is an electrically connected conductive member is formed to cover, as seen in plan view, the video signal lines in the pixel areas and a part of the reference electrodes on both sides of the video signal lines.

Abstract: To perform gap definition between respective transparent substrates with increased accuracy and reliability. Adhesion of a specified one of substrates as disposed to oppose each other with a layer of liquid crystal material interposed therebetween to the remaining one of the substrates is made by a sealing material which also has liquid crystal sealing functionality while causing more than one projection body to be disposed within the sealing material along the longitudinal direction of such seal material, wherein this projection body is formed at either one of the respective substrates.

Abstract: An active matrix type liquid crystal display device comprises a liquid crystal layer interposed between first and second substrates, plural scanning signal lines and plural video signal lines arranged in a matrix form on the first substrate and a plural pixels formed in regions surrounded by adjacent scanning signal lines and adjacent video signal lines. Each pixel in the display region has at least an active device, a pixel electrode, and a counter electrode to drive liquid crystal molecules in the liquid crystal layer by applying a voltage difference between the counter electrode and the pixel electrode which are provided are on the same substrate. The driving of the liquid crystal molecules by applying the voltage difference includes rotation of the liquid crystal molecules in a plane substantially parallel to the substrate with plural directions so as to reduce viewing angle dependency of color tone change.

Abstract: In an active matrix liquid crystal display device that is capable of realizing viewing angles comparable to those of Brawn tubes and is for controlling display by electric fields extending substantially parallel to a substrate surface, there is provided an active matrix liquid crystal display device which is bright and low in power dissipation.

Abstract: An active matrix liquid crystal display device having first and second substrates, a liquid crystal layer disposed between the first and second substrates, plural image signal lines and scan signal lines being formed on the substrate and each pixel region being formed by adjacent image signal lines and adjacent scan signal lines having at least an active device. At least a pixel electrode is connected to the active device and at least a counter electrode in each pixel, and the pixel electrode and the counter electrode are provided on the first substrate. A first alignment film is formed over the pixel electrode and counter electrode on the first substrate at least in a pixel forming region, and a second alignment film is formed on the second substrate at least in the pixel forming region. Rubbing directions of the first and second alignment films are substantially parallel to each other.

Abstract: The purpose is to provide an active-matrix liquid crystal display device using a in-plane field type having wide viewing angle characteristics with homogeneous color tones, capable of realizing characristics equal to those of a CRT. In this active-matrix liquid crystal display device of the present invention, liquid crystal molecules of the liquid crystal layer have at least two kinds of driving (reorientation) directions by electric field over the substrate surface.

Abstract: In order to improve the picture quality, such as by minimizing the smear in a liquid crystal display device of the in-plane field type having a wide viewing field, and to reduce power consumption, in the active-matrix liquid crystal display device, over the transparent substrate opposed to the transparent substrate over which the video signal lines are provided, a shield electrode is formed completely overlapping the video signal lines in plan view, the light shielding layer has a multilayer structure comprising CrO and Cr layers in this order from the transparent substrate side to the liquid crystal layer side, a connection terminal for supplying a reference signal to the light shielding layer is formed over the transparent substrate over which the display electrodes, the scan signal lines, the video signal lines and the active devices are provided, and a conductive layer to electrically connect the light shielding layer and the connection terminal is provided.

Abstract: A panel of a liquid crystal display, having a transparent insulating substrate, a gate line which is formed on the substrate, has a double-layered structure including a bottom metal layer and a top indium tin oxide layer, and extends to form a gate pad. A plurality of common electrodes which are formed on the substrate, connected to each other and separated from the gate line. An insulating layer covering the gate line and the common electrodes. A plurality of pixel electrodes which are formed on the insulating layer and are arranged between two of the common electrodes. A data line which is formed on the insulating layer and extends to form a data pad and a switching element having a gate connected to the gate line, a source connected to the data line and a drain connected to the pixel electrode.

Abstract: A panel of a liquid crystal display, having a transparent insulating substrate, a gate line which is formed on the substrate, has a double-layered structure including a bottom metal layer and a top indium tin oxide layer, and extends to form a gate pad. A plurality of common electrodes which are formed on the substrate, connected to each other and separated from the gate line. An insulating layer covering the gate line and the common electrodes. A plurality of pixel electrodes which are formed on the insulating layer and are arranged between two of the common electrodes. A data line which is formed on the insulating layer and extends to form a data pad and a switching element having a gate connected to the gate line, a source connected to the data line and a drain connected to the pixel electrode.

Abstract: A liquid crystal display apparatus includes a liquid crystal panel having a pair of substrates, a plurality of electrodes formed on at least one of the pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, and a light source provided on the back surface of the liquid crystal panel. The light source has the luminous characteristic with the chromaticity of a warm color family, and the liquid crystal panel has a spectral transmission characteristic with the chromaticity of a cold color family, whereby the color of the light source can be compensated.

Abstract: An active matrix type liquid crystal display apparatus includes a first substrate which has a plurality of scan electrodes and signal electrodes formed in a matrix shape, and a plurality of semiconductor switching elements having enhancement type characteristics formed at corresponding cross points of said scan electrodes and said signal electrodes, respectively, a second substrate which is arranged so as to face to said first substrate, and a liquid crystal layer which is composed of a liquid crystal composition enclosed in an interval between said first and second substrates, wherein pixel electrodes connected to corresponding ones of said semiconductor switching element and counter electrodes connected to corresponding ones of said scan electrodes are arranged alternately in a comb-shape manner in respective ones of plural pixel regions surrounded by said plural scan electrodes and plural signal electrodes on said first substrate.

Abstract: A liquid crystal display device includes a pair of substrates with a liquid crystal layer interposed between the pair of substrates. A video signal line and scanning signal line formed on one of the pair of substrates cross each other in a matrix form with a plurality of pixels are formed by adjoining the video signal lines and the scanning signal lines. A pixel electrode and a counter electrode are arranged in the plurality of pixels, respectively. A transparent electrically conductive layer is formed over one of the pair of substrates at a viewed side of the liquid crystal display device which is opposite to the liquid crystal layer side and the counter electrode is provided adjacent to the video signal line.

Abstract: A so-called in-plane electric field type color liquid crystal display device employs the following configuration in order to minimize smear. Groups of row-direction arrayed unit pixels are staggered one-half pitch of the unit pixels from the adjacent row-direction arrayed unit pixel groups. Three adjoining unit pixels are selected from two adjacent row-direction arrayed unit pixel groups so that they straddle these two unit pixel groups, and the three selected adjoining unit pixels are assigned three primary colors respectively.

Abstract: A liquid crystal display device including a liquid crystal composition layer having twistable liquid crystal molecules, a first substrate and a second substrate having the liquid crystal composition layer disposed therebetween, and a video signal line formed between a face of the first substrate and a face of the liquid crystal composition layer with at least one pixel electrode and at least one counter electrode being formed at each of pixels adjoining each other across the video signal line. The pixel electrode is fed with a selected video signal through the video signal line, and the counter electrode is fed with a counter voltage. The twisting extent of the liquid crystal molecules is controlled by an electric field which is generated between the pixel electrode and the counter electrode and which has a component substantially parallel to said first substrate.

Abstract: A in-plane switching type liquid crystal display device includes a liquid crystal layer and two transparent substrates with the liquid crystal layer therebetween. Pixel regions are disposed on the surfaces of the transparent substrates on the liquid crystal side, each of the pixel regions including a display electrode and reference electrodes. Voltages are applied to the electrodes to form an electric field in the liquid crystal layer to be parallel to the transparent substrates, thereby modulating light passing through the liquid crystal layer. The display electrodes are configured to receive a video signal from a video signal line.

Abstract: Even when a high potential such as of static electricity is applied from the outside of the liquid crystal display panel, the display image is prevented from becoming abnormal. When a black matrix of a resin composition having a large resistivity is used, the positions of the polarizer plates, black matrix, sealing portion and open region of the housing are defined to prevent the light from leaking through the periphery of the effective pixel region. The leakage of backlight that cannot be prevented by the black matrix only is prevented by the polarizer plates and the housing, a transparent electrically conductive film having a sheet resistivity of not larger than 2.times.10.sup.4 .OMEGA./.quadrature. is formed over, under, or inside the polarizer plate, and the electrically conductive film is electrically connected to the electrically conductive housing.