Sharp Kabushiki Kaisha Corporation

Akira Shibazaki

Ken Kuboki

Seiji Tanuma

Hiroshi Tsuchiya

Yusuke Nishihara

Taichi Sasaki

Satomi Hasegawa

Yutaka Takafuji

Katsunori Shirai

Kenji Okamoto

Mitsuhiro Murata

Seiji Kaneko

Kohhei Tanaka

Seiichi Uchida

Yasuyuki Ogawa

Yoshito Hashimoto

Yutaka Takamaru

Masahiro Shimizu

Yuichi Iyama

The TFT substrate () of this liquid crystal display device () includes: a TFT () which is provided for each pixel; an upper electrode () which is electrically connected to the TFT's drain electrode (); a lower electrode () which is arranged under the upper electrode; and a dielectric layer () which is arranged between the upper and lower electrodes. Its counter substrate () includes a counter electrode () which faces the upper electrode. The upper electrode has first and second regions (R, R) which have mutually different electrode structures, and a third region (R) which electrically connects the first and second regions to the drain electrode. The third region of the upper electrode includes a symmetrical connecting portion () that is a conductive film pattern, of which the shape is substantially symmetrical with respect to a virtual line (L) that splits each pixel into two adjacent regions in a row direction.

Liquid-crystal display apparatus with large viewing angle and high optical transmittance

In a liquid crystal display apparatus, an angle of orientation of a first extension orientation of a first slit is not greater than an angle of orientation of a first director orientation, an angle of orientation of a second extension orientation of a second slit is not smaller than an angle of orientation of a second director orientation, and a difference between the angle of orientation of the second extension orientation and the angle of orientation of the second director orientation is greater than a difference between the angle of orientation of the first extension orientation and the angle of orientation of the first director orientation.

Liquid crystal display apparatus

A liquid crystal display apparatus includes an electrode and a slit formation region provided in the electrode and extending in a direction of extension of a boundary line, a first alignment region and a third alignment region are formed such that liquid crystal molecules are aligned toward a first director orientation, a second alignment region and a fourth alignment region are formed such that liquid crystal molecules are aligned toward a second director orientation greater in an angle of orientation than the first director orientation, an angle of orientation of a first slit orientation is not greater than an angle of orientation of the first director orientation, and an angle of orientation of a second slit orientation is not smaller than an angle of orientation of the second director orientation.

A liquid crystal display device includes: a liquid crystal layer extending at least in a display region; first and second substrates affixed to each other so as to sandwich the liquid crystal layer therebetween; and a pair of polarization plates disposed to sandwich these substrates therebetween. The first substrate is provided with a pixel electrode corresponding to each of a plurality of pixels. The second substrate is provided with a counter electrode so as to face the pixel electrode. A first alignment film is disposed on the pixel electrode. A second alignment film is disposed on the counter electrode. The pixels each include a plurality of domains having different combinations of alignment directions of the first and second alignment films. The pixel electrode has a slit group along at least a part of an outline of the pixel electrode and in the vicinity of the outline.

Liquid crystal display device

Disclosed is a liquid crystal display device of active matrix type. Each pixel electrode () includes either a single regional electrode () or two or more regional electrodes () which are electrically connected to each other. The or each regional electrode is provided with: a first electrode (cross-shaped electrode) () which has a pattern dividing a first region into a plurality of second regions (R, R, R, and R); and a plurality of stripe electrodes () which are provided in each of the second regions so as to extend from the first electrode and so as to be separated from each other by a distance. A storage capacitor line (CSL) is provided facing one of pixel electrodes () in a film thickness direction to form a storage capacitor. The storage capacitor line (CSL) is provided so as not to extend facing an edge (') of a first region in the film thickness direction parallelly to the edge (&#x2032;). The invention eliminates irregular orientation of liquid crystal molecules in polymer sustained alignment.

An overshooting process is carried out, in an LCD device () whose LC layer thicknesses meet pixel R&#x3e;pixel G&#x3e;pixel B, so as to respectively set first through third output gray scales of current frame based on (i) first through third input gray scales of the current frame (current frame data) and (ii) first through third gray scales of frame which is one frame before the current frame (previous frame data). The first through third output gray scales are respectively set for the first through third pixels based on the thicknesses of the respective first through third liquid crystal layers so as to meet pixel R&#x3e;pixel G&#x3e;pixel B. This equalizes liquid crystal response speeds of the respective pixels R, G, and B, and therefore allows an improvement in display quality of the LCD device () having a multi gap structure.

Liquid crystal display apparatus, liquid crystal display apparatus driving method, and television receiver

Each of a gate driver and a source driver periodically receives a clock signal and a start pulse, where the start pulse has a certain width and is shifted as shift data in the gate driver or source driver in synchronism with the clock signal. A logic circuit composed of an NAND gate and an inverter receives the start pulse and the shift data, the shift data being the output that is supplied after a predetermined delay from the last stage with respect to the shift direction. The output of the inverter is used to test scanning circuits. This provides a display device and a scanning circuit testing method, which enable the scanning circuits to be judged both surely and quickly, without increasing the area or complexity of the circuit.

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Osaka, Japan

Akira Shibazaki