Casio Computer Co., Ltd.

Toppan Printing Co., Ltd.

Ortus Technology Co., Ltd.

Ortus Technololgy Co., Ltd.

Ryota Mizusako

Norihiro Arai

Kunpei Kobayashi

Hidehiro Morita

Toshiharu Nishino

Minoru Yamaguchi

Yasushi Nakajima

Tsuyoshi Suzuki

Hiromitsu Ishii

A liquid crystal display includes a pixel comprising first to fourth sub-pixels capable of respectively displaying red, green, blue, and white. Each of the sub-pixels comprises a reflective area and a transmissive area. The liquid crystal display includes a first laminated member provided on a first substrate and a second laminated member provided on a second substrate. The first laminated member comprises a first retardation plate and a first polarizer. The second laminated member comprises a second retardation plate, a diffusion member for diffusing light, and a second polarizer.

Liquid crystal display with red, green, blue, and white subpixels having reflective and transmissive areas

A liquid crystal display includes: a first substrate and a second substrate arranged to face each other; a liquid crystal layer provided between the first substrate and the second substrate and having a vertical alignment (VA) mode; a first electrode provided on the first substrate and extending in a first direction; a first pixel electrode and a second pixel electrode which are provided in one pixel region and above the first electrode, with an insulating layer interposed, and which are arrayed in the first direction; a first contact member which connects the first electrode and the first pixel electrode to each other; a second contact member which connects the first electrode and the second pixel electrode to each other; and a common electrode provided on the second substrate.

Liquid crystal display having a plurality of pixel electrodes in one pixel region

A liquid crystal display device includes: a first substrate and a second substrate; a liquid crystal layer sandwiched between the first substrate and the second substrate, containing P-type liquid crystal molecules, and configured to be perpendicularly aligned when no electric field is applied; a pixel including a reflecting region and a transmitting region, cell gaps of the reflecting region and the transmitting region being the same; one pixel electrode formed into a line on the first electrode; a first common electrode provided on the first substrate to sandwich the pixel electrode; a second common electrode provided on the second substrate; and a reflecting film provided in the reflecting region to overlap a portion of the pixel electrode, and comprising a conductive material.

Liquid crystal display device having transmitting region and reflecting region

A liquid crystal display device includes: first and second substrates disposed to be opposed to each other; a liquid crystal layer held between the first and second substrates, formed of a p-type liquid crystal material, and configured to take a vertical alignment in a state in which no electric field is applied; one or a plurality of linear pixel electrodes provided on the first substrate; a first common electrode provided on the first substrate, and formed in a manner to surround or sandwich the pixel electrode with a predetermined spacing; and a second common electrode provided on the second substrate, having substantially the same planar shape as the first common electrode, and formed such that at least a part of the second common electrode overlaps the first common electrode in planar projection.

Liquid crystal display device

A liquid crystal display includes: first and second substrates; a liquid crystal layer sandwiched between the first and second substrates and comprising a polymer network liquid crystal (PNLC) or a polymer dispersed liquid crystal (PDLC); a common electrode provided on the first substrate; transistors provided on the second substrate for respective pixels; a reflective film provided on the transistors; a color filter provided on the reflective film; and pixel electrodes provided on the color filter and electrically connected to drain electrodes of the respective transistors.

Liquid crystal display

A liquid crystal display apparatus includes a liquid crystal display device, a surface light source to irradiate light toward the device, an optical film disposed between the device and source, and a diffusion member disposed between the film and device. The device includes a pair of substrates facing to each other through a space with electrodes formed on at least one of opposite surfaces, a liquid crystal layer sealed into the space between the substrates, and a pair of polarizing plates arranged sandwiching the substrates therebetween. The film is made of a transparent film-like member and has two mutually faced film surfaces, one of the surfaces is formed into a planar shape, the other surface is formed into a convexo-concave structure with elongate microprisms in parallel to each other, and the film is disposed between the device and source with the one surface directed toward the device.

Liquid crystal display apparatus

A liquid crystal display device has an opposing substrate on which an opposing electrode is formed, a TFT substrate on which pixel electrodes arranged in matrix, thin film transistors connected to the pixel electrodes respectively, and gate lines and data lines for the thin film transistors are formed, vertical alignment films formed on the opposing inner surfaces of these substrates, and a liquid crystal layer disposed between the vertical alignment films and having negative dielectric anisotropy. Each pixel electrode has a slit formed for separating each pixel into a plurality of sub-pixels by partially eliminating the pixel electrode with a connecting portion left at which adjoining electrode portions of each pixel electrode is connected with each other. The width Wof the pixel electrode that runs in a direction in which the slit is formed and width Wof the connecting portion have a ratio W/Wof 0.13 or lower.

Vertical alignment liquid crystal display device in which a pixel electrode has slits which divide the pixel electrode into electrode portions

A method of manufacturing a liquid crystal display device includes steps of preparing first and second substrates, forming alignment films on one surfaces of the first and second substrates, respectively, performing rubbing treatment on the alignment films, screen-printing a seal member on the one surface of the first substrate so as to surround a display area, and stacking the first and second substrates on each other while the first surfaces face to each other, with rubbing directions of the alignment films on the first and second substrates being parallel to each other, and joining the first and second substrates through the seal member by curing the seal member while the first and second substrates are bonded to each other through the seal member. The screen-printing is performed while a squeegee is moved in a direction parallel to the rubbing direction of the alignment film formed on the first substrate.

Method of manufacturing liquid crystal display device

A liquid crystal display device comprises a TFT substrate, a CF substrate, a liquid crystal with negative dielectric anisotropy filled between the substrates, a pixel electrode provided on the TFT substrate, and an auxiliary electrode formed around the pixel electrode. A slit for segmenting a pixel region into a plurality of sub-pixel regions is formed in the pixel electrode from the center portion of each pixel toward the periphery portion thereof. The auxiliary electrode has a transparent step film formed at a position corresponding to the slit of the pixel electrode in such a way as to overlie the auxiliary electrode. Molecules of the liquid crystal of each sub-pixel region are aligned toward center of the sub-pixel region from the circumference of the sub-pixel region by a horizontal electric filed applied between the pixel electrode and auxiliary electrode, and the shape of the end portion of the transparent step film.

Vertical alignment active matrix liquid crystal display device having particular reflection metal films

Vertical alignment active matrix liquid crystal display device having particular transparent step films

A plurality of reflection films are provided behind a liquid crystal layer of a liquid crystal element, corresponding to predetermined regions in the plural pixels Pix. By the regions of the plural pixels wherein the reflection films are provided, reflection parts Pr are formed that reflects the light that enters from the front side and goes out to the front side by the region where the reflection film is provided, and transmission parts are formed that transmits the light that enters from the back side and goes out to the front side by the other regions of the plural pixels. At the same time, color filters, wherein a plurality of apertures are formed to the parts corresponding to the reflection pars Pr of the pixels Pix, are provided respectively corresponding to the plural pixels Pix, and a planarization transparent film covering the aperture is formed on these color filters.

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Sagamihara, Japan

Ryota Mizusako