Aspects of the invention provide a transflective liquid crystal display device that prevents display failure, such as an afterimage and unevenness like stains, and achieves a bright display with a wide viewing angle in both transmissive display and reflective display. The liquid crystal display device of the invention is a vertically-aligned transflective liquid crystal display device having a multigap structure. Each pixel can include, in a dot region, a plurality of islands, and connecting portions for electrically connecting the adjoining islands. Two islands, of the islands, can be disposed in a transmissive display region, and the remaining island is disposed in a reflective display region. A boundary sloping area in which the thickness of a liquid crystal layer continuously changes is disposed right below the connecting portion in the pixel electrode.

Liquid crystal device and electronic apparatus

To provide a semiconductor device, a liquid crystal display device, and an electronic device which have a wide viewing angle and in which the number of manufacturing steps, the number of masks, and manufacturing cost are reduced compared with a conventional one. The liquid crystal display device includes a first electrode formed over an entire surface of one side of a substrate; a first insulating film formed over the first electrode; a thin film transistor formed over the first insulating film; a second insulating film formed over the thin film transistor; a second electrode formed over the second insulating film and having a plurality of openings; and a liquid crystal over the second electrode. The liquid crystal is controlled by an electric field between the first electrode and the second electrode.

Liquid crystal display device and electronic device

To achieve clear image display without providing a feeling of roughness by fixing the position where disclination is generated in a liquid crystal device of a homeotropic alignment type, a conductive light shielding film provided on the side of an opposed substrate as a common electrode to drive a liquid crystal layer by pixel electrodes of an array substrate and the light shielding film of the opposed substrate.

Liquid crystal device and electronic equipment

A polymer dispersed display apparatus includes a polymer layer, and a plurality of liquid crystal drops dispersed in the polymer layer. Quantum dots emitting a plurality of colors of light are mixed in the liquid crystal drops. Therefore, the polymer dispersed display apparatus displays colors without the need for a color filter. Thus, the polymer dispersed display apparatus need not include a polarization plate and a color filter, so that a light usage efficiency of the polymer dispersed display apparatus increases.

Polymer dispersed display panels including quantum dots and display apparatuses including the same

An STN liquid crystal element (20) comprises a first substrate (1) with a first electrode (3), a second substrate (2) with a second electrode (4), a color filter (7) formed on the first or second substrate (1, 2) and consisting of a plurality of color filters, and 180 - 270° twisted nematic liquid crystal (6) between the first and second substrates. A phase plate (12) and a polarizer (11) are provided outside the second substrate (2), which becomes the front side of the STN liquid crystal element (20), while a diffuser layer (13), a reflective polarizer (14) and a light-absorbing layer (15) are provided outside the first substrate (1). The color filter (7), having a thickness of 0.5 - 2.0 microns, comprises color resist composed of photosensitive resin with 5 - 20 % pigment and has a maximum transmittivity of more than 80 % and a minimum transmittivity of 20 - 50 %.

Reflective liquid crystal display

PROBLEM TO BE SOLVED: To make it possible to display a bright and clean color by combining a light absorbing layer with a polarized light separating reflection plate which has a function to reflect or transmit polarized components to the whole range of visible light wavelength. SOLUTION: In a voltage-unimpressed area 8220, natural light 8210 is linearly polarized in a fixed direction by a polarizing plate 8201. And then, the light is twisted in the polarizing direction by a specific angle by a liquid crystal element 8202, and passes through a color filter layer 8200 and a diffuser 8203, reflecting on a polarized light separating reflection plate 8204, being twisted in the polarizing direction by the liquid crystal element 8202 by a fixed angle, and is emitted from a sheet polarizer 8201 as linearly polarized light. Therefore, when no voltage is impressed, incident light is not absorbed by the light absorbing layer 8205 but reflected by the polarized light separating reflection plate 8204, and as a result, a brightly colored display is obtained through a color filter layer 8200. Further, when a voltage is impressed, the light is absorbed by the light absorbing layer 8205 and a black display is obtained.

Reflection type liquid crystal device, and electronic device using it

PROBLEM TO BE SOLVED: To provide a reflection type liquid crystal device, a projection type display device and an electronic appliance which makes bright display with high contrast possible while preventing display defects caused by disclination in a high definition liquid crystal display device with a narrower gap between pixels. SOLUTION: The liquid crystal device has a liquid crystal layer held between a first substrate and a second substrate and has a first electrode and a second electrode formed on the liquid crystal layer side of the second substrate, and has the first electrode and the second electrode constituted in such a manner that an electric field parallel to the substrate surface can be applied on the liquid crystal layer. In this device, the first electrode is formed in a line with specified width on the second electrode through a second insulating film, and the second electrode is formed in a square. At least one of the first and second electrodes is a reflection electrode to reflect the light entering from the first substrate side. COPYRIGHT: (C)2001,JPO

Liquid crystal device, projection type display device and electronic appliance

PROBLEM TO BE SOLVED: To provide an electrooptical device capable of suppressing generation of parasitic capacitance at an intersection part of a scanning electrode and a signal electrode and enhancing display characteristics, to provide a manufacturing method of the electrooptical device and to provide an electronic device. SOLUTION: In the liquid crystal display device, a plurality of the signal electrodes X1 and X2 and a plurality of MIM elements connecting pixel electrodes 16 and the signal electrodes to each other are formed on an element substrate 13, an interlayer insulating film 19 is formed on the signal electrodes and the MIM elements and a plurality of second scanning electrodes 20 extending in the same direction as the scanning electrodes and electrically connected to the scanning electrodes are formed thereon. In each pixel region, a second insulating film 21 is formed between the second scanning electrode 20 and the pixel electrode 16 to form a retaining capacitance part 22. Since the the second scanning electrode 20 is separated from the signal electrode by the interlayer insulating film 19 and the retaining capacitance part 22 is formed by forming the second insulating film 21 other than the the interlayer insulating film 19 between the pixel electrode and the second scanning electrode, occurrece of parasitic capacitance at the intersection part of the second scanning electrode 20 and the signal electrode is suppressed. COPYRIGHT: (C)2004,JPO&NCIPI

Electrooptical device, manufacturing method of electrooptical device and electronic device

PROBLEM TO BE SOLVED: To solve a problem of color difference exhibited accompanying variation in an observing angle for a liquid crystal display device caused by inadequacy of variance in radii of fine particles contained in resin, which in turn results in deterioration of display quality because it is impossible to display with a color intended by the designer corresponding to variation in the observing angle and which also has a drawback of a darkened display in the case of color displaying. SOLUTION: The fine particles are selected to have the variance in the radii in such a way that variance in tristimulus values of light, X value, Y value and Z value, is made to be <=10% in 5-20 deg. angular range with respect to an advancing direction of light incident on an optical scattering layer. Thereby the optical scattering layer enabling an observer to observe the same color even when observed from a different angular direction is manufactured. Also the optical scattering layer can be made to be a color filter.

Liquid crystal display device and electronic instrument

PROBLEM TO BE SOLVED: To enable even a fine display to be easily recognized by forming recessing parts or protruding parts only on a light transmission plate corresponding to areas other than display areas of a liquid crystal panel on the liquid crystal panel side of the light transmission plate arranged on the liquid crystal panel. SOLUTION: A light transmission plate 202 is arranged on the liquid crystal panel of a simple matrix type or the like and the light source 201 of an LED light source or a three-wavelength light source is arranged at the end part of the light transmission plate 202. Then, protruding parts 203 are formed on the plane of the liquid crystal panel 211 side of the light transmission plate 202 and they are constituted so as not to be overlapped on display areas of the panel 211 when the panel 211 and the plate 202 are overlapped. Thus, since there are not the protruding parts 203 on parts of the light transmission plate 202 corresponding to the display areas of the panel 211, void parts are extinguished and a display having high contrast is obtained. Moreover, since there are the protruding parts 203 formed on the plate 202 at peripheries of the display areas and lights are emitted from the protruding part 203 via optical paths 208a, 208b, a sharp display is obtained.

英司岡本

Papers

Reflection type liquid crystal device, and electronic device using it

Liquid crystal device, projection type display device and electronic appliance

Electrooptical device, manufacturing method of electrooptical device and electronic device

Liquid crystal display device and electronic instrument

Liquid crystal device and electronic equipment using the same

英司 岡本

Papers

Reflection type liquid crystal device, and electronic device using it

Liquid crystal device, projection type display device and electronic appliance

Electrooptical device, manufacturing method of electrooptical device and electronic device

Liquid crystal display device and electronic instrument

Liquid crystal device and electronic equipment using the same

英司岡本