Abstract: In an active matrix liquid crystal display device, a drain and source of a TFT element for controlling power supply to a pixel electrode, are arranged so that an alignment direction of liquid crystal molecules over the source and drain does not change, thereby preventing formation of ghost images in the display. In one embodiment, an electric field generated between the source and drain is parallel to an initial non-zero alignment angle of the molecules.

Abstract: A reflection liquid crystal display is such that a transparent substrate is opposed to the first substrate with a liquid crystal layer placed therebetween, and the transparent substrate is disposed forward to the first substrate in the light-incident direction. A quarter-wavelength plate is disposed in the transparent substrate, and a polarization plate is disposed on the surface at the forward side thereof in the light-incident direction. And, a reflection layer besides acting as a color filter consisting of a cholesteric liquid crystal is disposed inside liquid crystal cells of the first substrate. In the case of a wide field-of-view angle, a scattering film is disposed forward to the polarization plate in the light-incident direction.

Abstract: A driving method for a color liquid crystal display which drives the color liquid crystal display based on a video red signal, a video green signal and a video blue signal by independently applying a gamma compensation to a clamped video red signal, a clamped video green signal and a clamped video blue signal in gamma compensating circuits in order to make suitable to a red transmittance characteristic, a green transmittance characteristic and a blue transmittance characteristic. With this operation, it is possible to carry out an optimal gamma compensation suitable to a characteristic of the color liquid crystal display and to remove a gradation batter occurring in a specific color.

Abstract: A display device comprises a frame buffer which time-divides a frame displaying one picture into multiple sub-frames, an attenuation signal generating circuit which generates an attenuation signal by dividing the inputted luminosity signal by the designated attenuation coefficient, and a signal switching circuit which inputs luminosity signals before division to the antecedent sub-frame in the relevant frame, at the same time, inputs the above-mentioned attenuation signals after division to the subsequent sub-frame. Consequently, such a hold type display device is realized as is able to control the lowering of the picture brightness, as well as, prevent a moving picture from being unclear, blurred or disordered.

Abstract: A semi-transmissive liquid crystal display device of the present invention is so configured that a diffraction film and a light scattering layer are provided on a color-filter substrate on the side thereof on which a display screen resides, and the light scattering layer is disposed nearer a liquid crystal layer than the diffraction film. The semi-transmissive liquid crystal display device thus configured has improved viewing-angle characteristics in the transmissive mode.

Abstract: In a flat panel display device, in which a display panel 1 loosely fitted on a main surface of a chassis 4 and circuit substrates held in hook portions provided on side surfaces of the chassis are connected each other through TCP's by bending the latter TCP's, and a method for manufacturing the same device, a main slit for a rounded portion of each TCP is formed in a rounded portion of the TCP and an auxiliary sub slit is also formed adjacent to the main slit. In order to reduce the peeling force exerted on connecting/fixing portions between the TCP's and the display panel, the circuit substrate is pulled up by bending the main and sub slits and then returning the sub slit to a flat state to insert the circuit substrate into the hook portions.

Abstract: A method is provided for manufacturing a support frame of a rectangular display panel within a short working time. The method includes a process of taking out L-shaped component members each having convex portions and concave portions arranged alternately at an end portion in a manner that each of the convex portions and concave portions is bilaterally symmetrical, while a shear droop and a burr are formed on an end portion and process of fitting and coupling end portions of L-shaped component members by placing the convex portions and the concave portions in such a manner that the shear droop of each of the convex portions faces the burr of each of the concave portions and the burr of each of the convex portions faces the shear droop of each of the concave portions and that that the convex portions and the concave portions are pushed towards each other and by pressing the convex portions and the concave portions using a pair of metal molds.

Abstract: A method of forming a wiring pattern includes forming a first conductive film pattern, an insulating film and a second conductive film pattern intersecting with the first conductive film pattern on an insulating substrate. In the method, an etching resist pattern for forming the second conductive film pattern is formed by use of a screen printing method. Thereafter, an etching resist is softened by exposing the etching resist in an organic solvent atmosphere before hardening thereof. Thus, defects such as spaces in the etching resist are repaired. By use of the above-described method of forming a wiring pattern, a TFT substrate is manufactured.

Abstract: A signal correcting circuit, which adds a correction value generated based on a signal stored in a frame memory to an input signal and outputs a resultant signal, is used to correct image data which is an input signal to a liquid crystal display to thereby completely compensate for the influence of the asymmetry of the input signal on the liquid crystal display. This prevents generation of residual images and flickering of the screen.

Abstract: A method is provided for driving a liquid crystal display capable of preventing degradation of linearity of a gamma characteristic, of achieving display of a high quality image in a simple and low-priced configuration and of solving problems associated with environmental changes, frequency characteristic of timing signals, change in a gamma characteristic caused by luminance of a backlight, or dispersion in a gamma characteristic occurring during processes of manufacturing a color liquid crystal display. The method includes acquirement of first corrected red data, first corrected green data, and first corrected blue data each being of 10 bits to which information to change a gray scale two or more times for every red data, green data, and blue data has been added when a gamma correction is made to red, green, and blue data each being of 8 bits and generation of data red, green, and blue signals to be fed to a data electrode of a liquid crystal display to perform frame rate control.

Abstract: A photoresist pattern is formed on an insulating substrate so that it has a reverse tapered cross section and a reverse pattern of a wiring pattern to be formed. Next, a nanoparticles-containing ink is injected on a wiring region using an inkjet system, followed by a leveling process, a drying process, a resist separation process and a baking process. Thus a wiring pattern is formed.

Abstract: A pair of dummy orientation film patterns are provided for an orientation film used for aligning LC molecules in an LCD device. For a rubbing treatment of the orientation film, a rubbing cloth is cleaned by one of the dummy orientation film patterns before rubbing the orientation film, and also cleaned by the other of the dummy orientation film patterns after rubbing the orientation film thereby preparing next rubbing treatment for the next LCD device. The dummy orientation film pattern has a thickness larger than the thickness of the orientation film.

Abstract: Light emitted in side surface directions from side-emitting red, green, and blue LEDs which are arranged on an LED array substrate is introduced into a light guide from side surfaces of a groove-shaped recessed portion, and propagates in the light guide. Thus, the three colors are mixed. The light further propagates in the light guide while being reflected at both side end surfaces of the light guide by the function of a reflective sheet and the like. Thus, color mixing progresses. Further, the light is reflected upward by diffuse reflective means provided on the lower surface of the light guide, and emitted as backlight light to the outside through a diffuse sheet.

Abstract: A substrate for a LCD device improves the flatness of the outermost substrate surface in the contact region for interconnecting an electrode of a switching element (e.g., a TFT) and a pixel electrode to each other in each pixel. Switching elements for respective pixels are formed on a transparent plate. Protrusions for the respective pixels are formed on the plate to protrude to a vicinity of an outermost surface of the substrate. Each protrusion raises an electrode of a corresponding switching element to the vicinity of the outermost surface in the corresponding pixel. A planarization layer forming the outermost surface is formed to cover the switching elements, the protrusions, and the electrodes of the elements in all the pixels. Pixel electrodes for the respective pixels are formed on the outermost surface. Each pixel electrode contacts the corresponding electrode of the element in the vicinity of the outermost surface.

Abstract: A liquid crystal display is provided which has low power consumption, and which prevents horizontal stripes from occurring without the circuitry becoming more complex. When the write voltage polarity is inverted every plurality of lines, in the n line where the polarity is inverted, the rise in the drain line waveform dulls due to the charging of the drain line. In the n+1 line, because the drain line has been charged by the writing of the n line, waveform dullness does not occur. A difference between the write states in the two lines causes horizontal stripes. Consequently, the output enable signal is activated at the rise of the clock signal, and the gate line is activated after a predetermined time to start the writing. Therefore, writing is not performed during the period of waveform dullness, and the write state is the same across all scan lines.

Abstract: A reflective or semi-transmissive type LCD device reduces a moiré generated by the irregularity pattern of the reflector plate of the LCD panel. A front light has an optical guide plate in which prism grooves are arranged in an arrangement direction. The pattern of the reflector plate is formed by blocks, each of which includes a basic irregularity pattern for one pixel or its element, and (N?1) modified basic irregularity pattern or patterns each formed by modifying the basic irregularity pattern. All the basic irregularity patterns in each block are arranged in a direction perpendicular to the arrangement direction. The basic irregularity pattern is continuous at either end thereof in the arrangement direction. The basic irregularity pattern is divided in the arrangement direction into N sub-patterns. Each of the (N?1) modified basic irregularity patterns is formed by the N sub-patterns circularly shifted one by one.

Abstract: A picture electrode of an MVA liquid crystal display device has a configuration where sub-picture electrodes are successively provided, while a cross-shaped slit is provided as an alignment restriction member on a common electrode of the side of a counter substrate. A columnar spacer is provided on a signal line of a TFT substrate in conformity to a position of a singular point of an alignment of liquid crystal molecules, the singularity occurring in a display region. This structure makes it possible, when a panel surface is depressed, to cause quick re-aligning of the liquid crystal molecules at the singular point of +1, as a base point, which has occurred at a center of the cross-shaped slit and in the vicinity of the columnar spacer, hence achieving a speedy recovery of displaying.

Abstract: A method of deforming a pattern comprising the steps of: forming, over a substrate, a layered-structure with an upper surface including at least one selected region and at least a re-flow stopper groove, wherein the re-flow stopper groove extends outside the selected region and separate from the selected region; selectively forming at least one pattern on the selected region; and causing a re-flow of the pattern, wherein a part of an outwardly re-flowed pattern is flowed into the re-flow stopper groove, and then an outward re-flow of the pattern is restricted by the re-flow stopper groove extending outside of the pattern, thereby to form a deformed pattern with at least an outside edge part defined by an outside edge of the re-flow stopper groove.

Abstract: A reflection electrode has an undulated shape and whose normal direction is distributed unevenly to a specific azimuth angle and whose reflection light intensity depends on said azimuth angle. Openings are formed in that area of the reflection electrode which has a tilt angle of 0 degree to 2 degrees and/or a tilt angle of 10 degrees or higher. The retardation of a liquid crystal layer is changed by making the liquid crystal molecular alignment mode different between the openings and the reflection electrode, so that the intensity of output light is increased in reflection mode as well as in transmission mode. The balance of colors displayed in transmission mode is determined by determining the area of the openings in pixels of each color, and the color temperature is set higher in transmission mode than in reflection mode. This provides a semi-transmission type liquid crystal display which has an excellent visibility in reflection mode as well as in transmission mode.

Abstract: First and second columnar spacers are formed on a color filter substrate, and step films are formed on an active matrix substrate in the same step as signal lines. The columnar spacers are formed by proximity exposure, and the step films are formed by being exposed by a lens projection system. In plan view, the step films are disposed inside the columnar spacers. The first columnar spacers are made to be in contact with the regions of the protective film that are higher in elevation with the step films in the active matrix substrate.