| US 7,532,183 B2 | ||
| Liquid crystal display device and its drive method | ||
| Katsufumi Ohmuro, Kawasaki (Japan); Arihiro Takeda, Kawasaki (Japan); Hideo Chida, Kawasaki (Japan); Kimiaki Nakamura, Kawasaki (Japan); and Yoshio Koike, Kawasaki (Japan) | ||
| Assigned to Sharp Kabushiki Kaisha, Osaka (Japan) | ||
| Filed on Aug. 31, 2005, as Appl. No. 11/217,031. | ||
| Application 11/217031 is a division of application No. 09/874442, filed on Jun. 05, 2001, granted, now 6,952,192. | ||
| Application 09/874442 is a continuation of application No. PCT/JP99/06189, filed on Nov. 05, 1999. | ||
| Claims priority of application No. 10-348914 (JP), filed on Dec. 08, 1998; and application No. 11-75963 (JP), filed on Mar. 19, 1999. | ||
| Prior Publication US 2006/0017677 A1, Jan. 26, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G09G 3/36 (2006.01) | ||
| U.S. Cl. 345—87 [345/96] | 6 Claims |
| 1. A liquid crystal display device, comprising:
a liquid crystal provided between a pixel electrode and a counter electrode to which a drive voltage is applied;
a domain restriction structure for restricting an alignment of the liquid crystal so that the alignment of the liquid crystal
is substantially vertical when non-voltage is applied, substantially parallel when a predetermined voltage is applied, and
inclined when a smaller voltage than the predetermined voltage is applied, and further a direction that the alignment of the
liquid crystal is inclined is set to be a plurality of parts in each pixel when a voltage smaller than the predetermined voltage
is applied; and
a drive circuit in which when the pixel is changed from a first transmittance to a second transmittance greater than the first
transmittance, a voltage greater than a first target drive voltage corresponding to the second transmittance is applied between
the pixel electrode and the counter electrode in a first period of changing to the second transmittance, and the first target
display voltage is applied between the pixel electrode and the counter electrode in a second period after the first period,
wherein
said first period is one frame period.
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