Abstract: An active matrix liquid crystal display device in which pixel electrodes are formed in overlapping relation with source signal lines through an insulating thin-film. One of the source signal lines positioned on a left side of the pixel electrode is referred to as a first source signal while that on a right side of the pixel electrode is referred to as a second source signal. When a thin-film transistor is switched off, a parasitic capacitance between the first source signal and the pixel electrode and that between the second source signal and the pixel electrode are equal to each other. The first and second source signal lines apply respective signals of opposite polarities. The pixel electrode is formed of ITO and is not formed over the thin-film transistor. Orientation is carried out along the signal lines. With the liquid crystal display device used as a light valve, a projection display system capable of providing a projected image of high image quality at a high luminance can be realized.

Abstract: Pixel electrodes and thin film transistors are arranged in a matrix in a display device, while polymer dispersion liquid crystals are interposed between an opposite electrode and the pixel electrodes on an electrode substrate. A signal is written into each pixel electrode by a pair of drive ICs for outputting signals in positive and negative polarities respectively with respect to an electrical potential at the opposite electrode. Two transistors are provided at each pixel electrode or an analog switch is provided at a signal output terminal of each drive IC so that signals of positive and negative polarities are not simultaneously written into an identical pixel electrode. When no voltage is applied to the pixel electrode, the incident light is reflected so as to be dispersed by the liquid crystal, and when a voltage is applied to the pixel electrode, the state of the liquid crystal is made light-permeable.

Abstract: An empty cell is produced by adhering an array substrate and a counterelectrode substrate with a sealant resin of a predetermined height. A mixture liquid comprising liquid crystal and a polymerizable photosetting resin is injected into the empty cell. Then, the cell is interposed between a flat rigid bench and a flat rigid plate, and the mixture liquid is heated to make it transparent. Then, the thickness of the mixture liquid is measured with an interferometer. If the measured thickness deviates from a predetermined range, the flat rigid plate is pressed until the measured thickness changes into the predetermined range. Then, the mixture liquid is irradiated to form a liquid crystal/resin composite layer. Then, the pressure is removed. Thus, a liquid crystal/resin composite layer of uniform thickness can be obtained.

Abstract: The invention relates to a liquid crystal display device and a projection TV using same. The liquid crystal display device has microfine conductive bumps formed on terminals of a liquid crystal display panel, and a conductive joint layer formed on each conductive bump. The display panel is connected to wiring leads formed on a substrate provided thereon an IC drive circuit. The projection TV employs a liquid crystal display device in which three liquid crystal display panels corresponding to three colors, red, green, and blue, are mounted on a single substrate. Light beams are made incident on the respective panels, and light beams transmitted through or reflected from specified pixels are projected on a screen to form an image.