THIN FILM TRANSISTOR LIQUID CRYSTAL DISPLAY DEVICE

Japanese Patent JP3539721

B2

PROBLEM TO BE SOLVED: To provide a TFT liquid crystal display device with respect to an optically compensated bend mode liquid crystal(OCB mode liquid crystal) display device such that the bend alignment in the initial stage of driving can be made uniform in the plane, that the display performance without dependence on the viewing angle which is the characteristic of the OCB mode liquid crystal can be obtained, that the device has fast responding property to respond to fast animated images and that bright image display can be obtained without decreasing the transmissivity for light.
SOLUTION: The device is provided with a means to produce a uniform response rate for bend alignment so as to produce uniform distribution of the response rate for bend alignment in the plane generating after starting to drive. Practically, the means is realized by disposing the conductive connecting parts 8, 8' to supply voltage to the counter electrode more densely near the injection port 12 of the liquid crystal so that steep AC pulses are applied near the injection port to accelerate the bend alignment. As for another means, AC voltage is applied to actively control the distribution of the waveforms of the AC voltage in the plane.

Yuji Dobashi
Matsunami Jin
Yukio Numata

JP2000240047A

July 07, 2004

August 08, 2000

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Matsushita Electric Industrial Co., Ltd

G02F1/1337; G02F1/133; G02F1/1345; G02F1/136; G02F1/1368; G02F1/139; (IPC1-7): G02F1/139; G02F1/133; G02F1/1345; G02F1/1368

JP9138421A
JP9185032A
JP9185037A
JP10206822A

Hiroyuki Ikeuchi
Kimihiro Sato
Koichi Kamata
Keiji
Koichiro Tsujimaru
Shigeru Kuroda

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