Hitachi Displays, Ltd.

Hitachi, Ltd.

Panasonic Liquid Crystal Display Co., Ltd.

Japan Display Inc.

Shinmaywa Industries, Ltd.

Panasonic Liquid Display Co., Ltd.

Hitachi Chemical Company, Ltd.

Shoichi Hirota

Shinichi Komura

Masaya Adachi

Osamu Itou

Tatsuya Sugita

Shinichiro Oka

Tsunenori Yamamoto

Iwao Takemoto

Yoshifumi Sekiguchi

Tetsuya Nagata

Makoto Tsumura

Hirotaka Imayama

Susumu Edo

Hideo Sato

Ikuo Hiyama

Hiroki Kaneko

Tetsuya Ooshima

Toshio Miyazawa

Hiroshi Sasaki

Masateru Morimoto

Osamu Itoh

Hideki Nakagawa

Katsumi Kondo

Koichi Fukuda

Satoshi Ouchi

Osamu Ito

Jun Tanaka

Akihiko Emori

Katsuhide Aoto

Yoshiyuki Kaneko

Yoshiro Mikami

Akira Kato

Koichi Igeta

Masaki Matsumori

Nobuyuki Ishige

Makoto Abe

Hiroshi Kajiyama

Mitsuji Ikeda

Katsumi Matsumoto

Akitoyo Konno

Kenichi Onisawa

Hitoshi Komeno

Taro Imahase

Miharu Otani

Kazuhito Masuda

Tetsuro Minemura

Katsuyuki Funahata

Tatsuya Ohkubo

Toshio Saito

Tetsuya Ohshima

Tetsuya Aoyama

Tetsuya Oshima

Hideo Satou

Kazuhiro Kuwabara

Chieko Araki

Isao Tokomoto

Mitsuyoshi Kanoh

Takanobu Hori

Takashi Hara

A color display device comprises an array of a plurality of sub-pixels including a red sub-pixel, a blue sub-pixel, a first green sub-pixel and a second green sub-pixel. The first green sub-pixel and the second green sub-pixel are smaller than that of the red sub-pixel or the blue sub-pixel. The two adjacent first green sub-pixels are arranged in a first direction, the two adjacent second green sub-pixels are arranged in the first direction. The blue sub-pixel is directly adjacent to the red sub-pixel in a second direction; the blue sub-pixel is directly adjacent to the two first green sub-pixels and the two second green sub-pixels.

Color display device

In a color display device, when using white (W) sub-pixels in addition to subpixels of red (R) and green (G) plus blue (B) without increasing a wiring line number, the per-color pixel number in a unit area decreases so that the image resolution is deteriorated. The area and number of subpixels are adjusted in accordance with the visual sensitivity or luminosity required. Practically, the area of red (R) and blue (B) subpixels which are relatively low in luminosity is set to be about two times greater than the area of green (G) and white (W) subpixels that are relatively high in luminosity while letting the number of green (G) and white (W) subpixels be twice the number of red (R) and blue (B) subpixels. A larger subpixel is configured from a plurality of unit subpixels. A smaller subpixel is formed of a one unit subpixel.

Color display, liquid crystal display, and semi-transmissive liquid crystal display

A liquid crystal display device including lenticular lenses and color separation filters, associated with a subpixel row direction, on the backlight side with respect to lenticular lenses. In a RGW row, a color separation filter reflecting B wavelengths is arranged, and in a GBW row, a color separation filter reflecting R wavelengths is arranged. Together with collecting light in transmissive aperture parts with lenticular lenses and improving the transmitted quantity of light, the light reflected by color separation filters is returned to the backlight and re-utilized.

Liquid crystal display device

A wire grid polarizer includes fine metal wires arranged parallel to one another and thus transmitting TM-polarized light. A light absorbing layer for absorbing TE-polarized light is provided on at least one of the surfaces of the wire grid polarizer.

Wire grid polarized and liquid crystal display device using the same

A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer formed between the first substrate and the second substrate, and a transistor formed in a pixel. A first insulating layer is formed over the transistor, a first electrode is formed on the first insulating layer, a second insulating layer is formed on the first electrode, a second electrode is formed on the second insulating layer, and the first electrode has a bumpy plane shape and the second electrode has a line shape portion.

Transflective liquid crystal display device

An image is displayed by modulating TM-polarized light between the polarizerand the wire grid polarizerthrough the variation of the optical characteristic of the liquid crystal layerinterposed between the transparent plateand the transparent plate. Degradation of contrast in the bright ambience is avoided by providing an absorption layer for absorbing TE-polarized light on that surface of the wire grid polarizerwhich faces the liquid crystal layer

A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer formed between the first substrate and the second substrate, and a transistor formed in a pixel. A first insulating layer is formed over the transistor, a first electrode is formed on the first insulating layer, a second insulating layer is formed on the first electrode, a second electrode is formed on the second insulating layer, and the first electrode has a plane shape and the second electrode has a line shape portion.

An image display apparatus configured by a display panel having an image memory element in a pixel, which achieves low power consumption. A nonvolatile image memory element, which can change the resistance value by phase change, is connected to a pixel electrodeof a liquid crystal element. The output of a thin-film transistordriven by scanning and signal electrode linesis connected to the pixel electrode. When the scanning electrode lineis selected to have a high level voltage, the thin-film transistoris turned on and a current signal flowing through the signal electrodeis sent through the image memory elementto a reference electrode line. Depending on the current value or pulse width passing through the image memory element, the resistance of the image memory elementis changed and is stored as a resistance value. A liquid crystal drive voltage to be applied to the liquid crystal elementis varied depending on the resistance of the image memory elementand an image is displayed on the liquid crystal element

Image display apparatus and image display module

The present invention enhances display efficiency and a contrast of a reflective part in an IPS-type transflective liquid crystal display device. In a transflective liquid crystal display device in which the liquid crystal display device includes a liquid crystal display panel having a pair of substrates and liquid crystal sandwiched between the pair of substrates, the liquid crystal display panel includes a plurality of sub pixels each having a transmissive part and a reflective part, each sub pixel out of the plurality of sub pixels includes a pixel electrode which is formed on one substrate out of the pair of substrates and a counter electrode which is formed on the one substrate, and an electric field is generated by the pixel electrode and the counter electrode thus driving the liquid crystal, a portion of the counter electrode of the each sub pixel at the reflective part constitutes a reflective electrode, the reflective electrode includes an uneven portion and a flat portion, and the flat portion of the reflective electrode is arranged on a boundary portion between the transmissive part and the reflective part of the each sub pixel.

In a transflective liquid crystal display device having a first substrate, a second substrate, a liquid crystal layer disposed between the two substrates and a reflective region and a transmissive region in each pixel; the second substrate has a pixel electrode to drive the liquid crystal layer and a common electrode; the reflective region of the second substrate is formed with an in-cell polarizer between the pixel electrode and common electrode and the reflector. In this invention, the thickness of the liquid crystal layer is set greater in the reflective region than in the transmissive region. The difference in the liquid crystal layer thickness between the reflective region and the transmissive region is provided by forming a step in the first substrate or the second substrate.

Each pixel has a transmissive area and a reflective area. A first alignment process area and a second alignment process area are placed such that an overlapping region is created in part of the reflective area. A region where the liquid crystal alignment direction shifts continuously is created in a boundary between the transmissive are a and the reflective are a without exception. A first liquid crystal alignment region is formed wider than the transmissive area, and a second liquid crystal alignment region is formed narrower than the reflective area.

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Hitachi, Japan

Shoichi Hirota