| US 7,570,243 B2 | ||
| Liquid crystal display and driving method thereof | ||
| Sin Ho Kang, Suwon-si (Korea, Republic of); Jin Cheol Hong, Gumi-si (Korea, Republic of); and Sung Chul Ha, Gyeongsangbuk-do (Korea, Republic of) | ||
| Assigned to LG. Display Co., Ltd., Seoul (Korea, Republic of) | ||
| Filed on Dec. 06, 2005, as Appl. No. 11/295,975. | ||
| Claims priority of application No. 10-2005-0056544 (KR), filed on Jun. 28, 2005. | ||
| Prior Publication US 2006/0290637 A1, Dec. 28, 2006 | ||
| Int. Cl. G09G 3/36 (2006.01) | ||
| U.S. Cl. 345—98 [345/87] | 13 Claims |
| 1. A liquid crystal display device, comprising:
a first transistor that outputs a charge share voltage to a data line in response to a first output control signal;
a logic circuit that outputs first to third output signals in response to the first output control signal, a second output
control signal and a polarity control signal, wherein the second output control signal is phase-shifted from the first output
control signal and the polarity control signal controls a polarity of a data signal;
a second transistor that outputs a positive pre-charge voltage, which is greater than the charge share voltage, to the data
line in response to the first output signal;
a third transistor that outputs a negative pre-charge voltage, which is lower than the charge share voltage, the data line
in response to the second output signal; and
a fourth transistor that outputs the data voltage to the data line in response to the third output signal.
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