Hitachi, Ltd.

Panasonic Liquid Crystal Display Co., Ltd.

Hitachi Displays, Ltd.

Japan Display Inc.

Hitachi Device Engineering Co., Ltd.

Hiatchi, Ltd.

Masahiro Yanai

Keiichiro Ashizawa

Masuyuki Ohta

Kazuhiro Ogawa

Kazuhiko Yanagawa

Nobutake Konishi

Sukekazu Aratani

Katsumi Kondo

Masahito Ohe

Hagen Klausmann

Yasuyuki Mishima

Nobuyuki Suzuki

Masahiro Ishii

Makoto Yoneya

Shigeru Matsuyama

Kiyoshige Kinugawa

Minoru Hiroshima

Masaru Takabatake

Kenkichi Suzuki

Ryoji Oritsuki

Masaaki Matsuda

Yuichi Hashimoto

Hayao Kozai

Kazuhiko Yamagawa

Toshikazu Horii

Takashi Isoda

Mituru Sekino

A liquid crystal display device includes first and second substrates with a liquid crystal layer disposed therebetween, a display region and a peripheral region, a gate signal line and an image signal line, an insulating layer formed over the gate signal line and the image signal line, a pixel electrode formed in the display region, a counter electrode formed over the insulating layer and formed by a first transparent conductive layer, and a second transparent conductive layer and an external connection terminal. The second transparent conductive layer and the external connection terminal are disposed in the peripheral region, and the second transparent conductive layer is formed over the insulating layer and is electrically connected to the counter electrode and the external connection terminal. A part of the gate signal line is covered by the second transparent conductive layer in the peripheral region.

Liquid crystal display device

A liquid crystal display device includes a first substrate, a pixel electrode and a counter electrode, an insulation film, and a first orientation film formed over the pixel electrode and the counter electrode on the first substrate, the first orientation film being responsive to a radiated polarized light to obtain an initial orientation direction. A second substrate is opposed to the first substrate, a second orientation film is formed over the second substrate, and a liquid crystal is sealed between the first and second substrates. The first and second orientation films are made of polyimide, the liquid crystal has negative dielectric anisotropy, and the liquid crystal display device is normally in a black mode. An angle formed between the electric field and the initial orientation direction of the first orientation film is in a range of greater than 0&#xb0; to 45&#xb0;.

In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions

A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer sandwiched between the first and second substrates, and an orientation film formed on the first substrate. The orientation film has two orientation regions in a pixel, and the orientation regions are formed by polarized light.

A liquid crystal display device includes first and second substrates, a liquid crystal layer disposed therebetween, pixel regions formed by gate signal lines and image signal lines formed over the first substrate, a first insulating layer formed over the gate signal lines, thin film transistors connected to the gate signal lines with in a second insulating layer formed thereover, pixel electrodes connected to the thin film transistors, a counter electrode formed of a first transparent conductive layer over the second insulating layer, and a second transparent conductive layer and an external connection terminal disposed outside of the pixel regions. The second transparent conductive layer is formed over the second insulating layer and is electrically connected to the counter electrode and the external connection terminal, and a part of each of the gate signal lines is disposed outside of the pixel regions and is covered by the second transparent conductive layer.

Liquid crystal display

An active matrix type liquid crystal display device includes first and second substrates, a liquid crystal layer disposed between the first and second substrates, a plurality of pixel regions formed by image signal lines and scan signal lines, and a semiconductor layer, a pixel electrode, a counter electrode formed on the first substrate in a pixel region. The pixel electrode is arranged at level which is lower than a level of the semiconductor layer.

Liquid crystal display device with semiconductor layer of TFT and pixel electrode at different levels

A liquid crystal display device includes a first substrate, a second substrate, a first electrode and a second electrode formed on the first substrate, the second electrode being arranged at an upper layer with respect to the first electrode, a drain signal line and a gate signal line formed on the first substrate, and a liquid crystal layer driven by an electric field formed between the first electrode and the second electrode. The first electrode extends in parallel to the drain signal line and the second electrode extends at a slanted direction to the drain signal line.

An active matrix liquid crystal display device includes first and second substrates, a liquid crystal layer disposed between the first and second substrates, and plural image signal lines and scan signal lines formed on the first substrate. Respective pixel regions are formed by adjacent image signal lines and adjacent scan signal lines, and the respective pixel regions have at least one of a semiconductor layer, a pixel electrode, a counter electrode, and a source electrode which has a high-melting-point metal layer and an aluminum layer formed on the high-melting-point metal layer; wherein the high-melting-point layer enables connection of the semiconductor layer and the pixel electrode, and the pixel electrode is formed between the high-melting-point metal layer and the first substrate; and wherein a part of the scan signal lines positioned between the pixel regions and the gate terminal is covered by an ITO layer electrically connected to the counter electrode.

Liquid crystal display having a pixel region with a source electrode of at least a high-melting-point metal layer

A liquid crystal display device includes a first substrate and a second substrate with a liquid crystal material sandwiched therebetween, neighboring first, second, third and fourth regions arranged in a rectangular shape and in a clockwise direction, the first, second, third and fourth regions having a first pixel electrode, a second pixel electrode, a third pixel electrode and a fourth pixel electrode, respectively. The first pixel electrode and the third pixel electrode extend in a parallel direction to one another, and the second pixel electrode and the fourth pixel electrode extend in a parallel direction to one another.

A display device includes first and second substrates with a liquid crystal layer therebetween, video signal lines and scan lines on one of the substrates, and display electrodes connected to a video signal line through an active device. Pixel areas are defined by the video signal and scan signal lines, and each pixel area has the display electrode, a reference electrode and the active device. Display electrodes are arranged on the first substrate and reference electrodes are arranged the second substrate. A part of the reference electrodes have a plurality layers and is conductive. A sealing material is formed between the substrates and along a periphery thereof and include conductive beads. A connecting terminal is formed from an edge of the first substrate to under the sealing material, and is connected electrically to the reference electrodes thorough the sealing material.

Active-matrix liquid crystal display

A liquid crystal display device includes a pair of substrates with a liquid crystal layer therebetween with a plurality of scanning signal lines and of video signal lines being formed on a first substrate. The scanning and video signal lines are arranged in a shape of a grid, and a pixel region is defined as a region surrounded by the scanning and video signal lines. A black matrix is formed on a second substrate, is arranged in a position overlapped on the scanning and video signal lines, and has an opening portion in each pixel region. A plurality of first electrodes are provided on the first substrate, and a plurality of second electrodes are provided on the second substrate, wherein at least one of first electrodes and at least one of the second electrodes are arranged in a position overlapped with the opening portion.

An active matrix liquid crystal display device includes first and second substrates, a liquid crystal layer disposed between the first and second substrates, and plural image signal lines and scan signal lines formed on the first substrate. Respective pixel regions are formed by adjacent image signal lines and adjacent scan signal lines and have at least an active device, with a first electrode and a second electrode being provided in each pixel region. The first electrode is connected to the active device of one pixel region, and the second electrode of one pixel region is connected to the second electrode of an other pixel region which adjoins the one pixel region in the extended direction of the image signal line. The second electrode is connected for at least three adjacent pixel regions in the extended direction of the image signal line.

Active matrix liquid crystal display device

An active matrix liquid crystal display device includes a pair of substrates and a liquid crystal layer, a video signal lines and scan signal lines delimiting pixel areas having pixel electrodes and display electrodes, reference electrodes and active devices. The display electrodes are arranged on one of the substrates, and the reference electrodes are arranged on another of the substrates. A part of the reference electrodes have a first layer formed in the substrate side and a second layer formed in the liquid crystal layer side. Each of the display electrodes and the reference electrodes has a slit, the slit of the display electrodes and the slit of the reference electrodes being shifted with respect to one another in plan view.

A liquid crystal display device includes a pair of substrates with a liquid crystal layer therebetween, a plurality of scanning signal lines and a plurality of video signal lines formed on one of said pair of substrates, a plurality of first electrodes on the one of said pair of substrates and a plurality of second electrodes on the one of said pair of substrates to drive the liquid crystal by a voltage difference with respect to the first electrode. The first electrodes have a bent form, and the second electrodes have a rectangular form.

An active matrix liquid crystal display device includes substrates, a liquid crystal layer therebetween, video signal lines and scan signal lines formed on one of the substrates, and pixel electrodes connected to one of the video signal lines through an active device. Pixel areas, which are defined by the video signal lines and the scan signal lines which are formed in the shape of a matrix, have display electrodes, reference electrodes and the active device arranged therein. The display electrodes are arranged on one of the substrates, and the reference electrodes are arranged on another of the substrates, and each of the display electrodes and the reference electrodes has a slit. The slit of the display electrodes and the slit of the reference electrodes are shifted with respect to one another in plan view.

A liquid crystal display device includes a pair of substrates with a liquid crystal layer therebetween, a plurality of scanning signal lines and a plurality of video signal lines formed on one of the pair of substrates, a plurality of first electrodes provided on the one of the pair of substrates, and a plurality of second electrodes provided on the one of the pair of substrates to drive the liquid crystal layer by a voltage difference with respect to the first electrode. The first electrode and the second electrode are arranged in different layers with an insulating layer therebetween. The first electrode has a bent form and each first electrode is connected by connecting portion in each pixel, and the connecting portion has an overlapping relation with at least one the second electrode and a signal line connected to the second electrode.

Growing community of inventors

Mobara, Japan

Masahiro Yanai