发明名称 |
APPARATUS AND METHOD FOR DRIVING LCD HAVING PLURAL GRAY SCALE VOLTAGES |
摘要 |
PURPOSE: An apparatus and a method for driving an LCD having plural gray scale voltages are provided to improve a responding speed of an intermediate gray scale by boosting a gray scale voltage when a difference between present image data and prior image data is less than a setup value. CONSTITUTION: An image signal processor is used for processing present image data on the basis of a difference between present image data and prior image data and generating a control signal thereby. A gray scale voltage generator is used for generating plural gray scale voltages. The gray scale voltage generator includes a selector for selecting one of a first gray scale voltage and a second gray scale voltage according to the control signal of the image signal processor. A data driver is used for applying a gray scale voltage used as a data voltage to a pixel. An absolute value of a difference between the second gray scale voltage and a common voltage is larger than an absolute value of a difference between the first gray scale voltage and the common voltage. The image signal processor transmits the control signal to select the first or the second gray scale voltage.
|
申请公布号 |
KR20040105932(A) |
申请公布日期 |
2004.12.17 |
申请号 |
KR20030037088 |
申请日期 |
2003.06.10 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM, CHEOL GI;PARK, JU HWAN |
分类号 |
G09G3/36;(IPC1-7):G09G3/36 |
主分类号 |
G09G3/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|