| US 7,602,385 B2 | ||
| Display device and display system using the same | ||
| Yoshiyuki Kurokawa, Kanagawa (Japan); and Takayuki Ikeda, Kanagawa (Japan) | ||
| Assigned to Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken (Japan) | ||
| Filed on Nov. 18, 2002, as Appl. No. 10/295,848. | ||
| Claims priority of application No. 2001-365035 (JP), filed on Nov. 29, 2001. | ||
| Prior Publication US 2003/0098875 A1, May 29, 2003 | ||
| Int. Cl. G09G 5/00 (2006.01) | ||
| U.S. Cl. 345—204 [345/206] | 68 Claims |
| 52. A display device comprising:
a pixel portion comprising a plurality of pixels arranged in matrix, each pixel comprising:
m (m is a natural number, m≧2) first storage circuits of n bits (n is a natural number, n≧2) for storing first image data;
m second storage circuits of n bits for storing second image data;
an operation processing circuit for conducting operation processing using the first image data and the second image data;
and
a D/A converter circuit electrically connected to the operation processing circuit;
wherein each of the first storage circuits comprises a first transistor and a first storage element including cross-coupled
inverters, and each of the second storage circuits comprises a second transistor and a second storage element including a
capacitor.
|