| US 7,468,716 B2 | ||
| Modifying gray voltage signals in a display device | ||
| Seung-Woo Lee, Seoul (Korea, Republic of); and Moung-Su Kim, Gyeonggi-do (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (Korea, Republic of) | ||
| Filed on Aug. 10, 2004, as Appl. No. 10/916,260. | ||
| Claims priority of application No. 2003-0055422 (KR), filed on Aug. 11, 2003; and application No. 2004-0030426 (KR), filed on Apr. 30, 2004. | ||
| Prior Publication US 2005/0062703 A1, Mar. 24, 2005 | ||
| Int. Cl. G09G 3/36 (2006.01) | ||
| U.S. Cl. 345—89 [345/690] | 24 Claims |
| 1. A method of driving a display device, the method comprising:
determining a first difference Δ1, wherein Δ1 is a difference between gray signals of two consecutive frames;
comparing Δ1 to a predetermined value to obtain a comparison result;
using the comparison result to determine a modified current gray signal; and,
applying the modified current gray signal to a current frame;
wherein the gray signals are a current gray signal for the current frame and a previous gray signal for a frame preceding
the current frame;
wherein the predetermined value is a first predetermined value and the comparison result is a first comparison result, and
further comprising:
determining a second difference Δ2, wherein Δ2 is a difference between the current gray signal and a next gray signal for a frame succeeding the current frame;
comparing Δ2 to a second predetermined value to obtain a second comparison result; and,
using the second comparison result to determine the modified current gray signal.
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