Liquid crystal display device, driving method therefor and electronic equipment
A liquid crystal display and device technology, which is applied in the field of liquid crystal display devices and their driving, can solve the problems of decreased response speed, decreased display quality, and can not improve the decreased response speed, and achieves the effect of improving quality and improving response characteristics.
Inactive Publication Date: 2005-10-05
SHARP KK
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Problems solved by technology
[0007] However, the inventors of the present invention have found that in the above-mentioned alignment-segmented vertical alignment LCD, such as MVA LCD, when the applied voltage is high (for example, when transitioning from a black display state to a high-brightness gray-scale display state or a white display state ), the liquid crystal molecules in the liquid crystal layer exhibit a unique behavior, resulting in a decrease in response speed
Utilizing the OS driver can not improve the response speed drop caused by this phenomenon discovered by the inventor, and degrade the display quality
Method used
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[0075] An LCD embodiment of the present invention and a driving method for the LCD will be described below with reference to related drawings.
[0076] First, refer to Figures 1A-1C The basic structure of the alignment split vertical alignment LCD according to the embodiment of the present invention is introduced.
[0077] The alignment split vertical alignment LCDs 10A, 10B, and 10C include a plurality of pixels each having a first electrode 11 , a second electrode 12 facing the first electrode 11 , and an electrode placed between the first electrode 11 and the second electrode 12 . The liquid crystal layer 13 is vertically aligned. The vertically aligned liquid crystal layer 13 includes liquid crystal molecules having negative dielectric anisotropy, which are approximately perpendicular (for example, at an angle in the range between 87° and 90°) to the first and second electrodes during non-voltage application. 11 and 12 planes are aligned. Usually, this alignment is ach...
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Abstract
This liquid crystal display device has a plurality of pixels each having a 1st electrode, a 2nd electrode opposed to the 1st electrode, and a vertical orientation type liquid crystal layer provided between the 1st electrode and 2nd electrode. This liquid crystal display device further has a beltlike 1st orientation restricting means which is provided on the side of the 1st electrode of the liquid crystal layer and has a 1st width, a beltlike 2nd orientation restricting means which is provided on the side of the 2nd electrode of the liquid crystal layer and has a 2nd width, and a beltlike liquid crystal area which is prescribed between the 1st orientation restricting means and 2nd orientation restricting means and has a 3rd width, being 2 to 15 [mu]m.
Description
technical field [0001] The present invention relates to a liquid crystal display device and its driving method, in particular to a liquid crystal display device suitable for displaying moving images, its driving method and electronic equipment provided with the liquid crystal display device. Background technique [0002] In recent years, liquid crystal display devices (LCDs) have been widely used. Among various types of LCDs, TNLCDs in which a nematic liquid crystal material having positive dielectric anisotropy is twisted have become mainstream. However, the TN LCD has a problem that the viewing angle dependence due to the alignment of liquid crystal molecules is large. [0003] In order to improve the viewing angle dependence, alignment split vertical alignment LCDs have been developed, and the use of these LCDs is increasing. For example, Japanese Patent Gazette No. 2947350 (Document 1) discloses a multi-domain vertical alignment (MAV) LCD as one of the alignment split ...
Claims
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IPC IPC(8): G02F1/1333G02F1/133G02F1/1337G02F1/1343G09G3/36
CPCG02F1/133707A01K85/14
Inventor 久保真澄中村久和大上裕之山本明弘川村忠史越智贵志成濑洋一
Owner SHARP KK