发明名称 |
SEMICONDUCTOR DEVICE, LIGHT-EMITTING DISPLAY APPARATUS, AND METHOD FOR DRIVING THEM |
摘要 |
<p>A latch circuit is disposed to an output terminal of the respective stages of a shift register circuit, when a pulse is shifted to a stage to which an output is wanted to be outputted, a latch pulse is inputted and held there until a subsequent pulse is inputted, when the pulse is shifted to a stage to which an output is wanted to be outputted in the next time, a latch pulse is again inputted, and thereby an output stage is switched. Thus, a period to be selected and a stage to be selected can be arbitrary selected by changing a latch pulse without changing a clock frequency.</p> |
申请公布号 |
EP1577864(B1) |
申请公布日期 |
2013.08.14 |
申请号 |
EP20030780933 |
申请日期 |
2003.12.19 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
MIYAGAWA, KEISUKE;FUKUMOTO, RYOTA |
分类号 |
G09G3/20;G09G3/30;G09G3/32;H05B33/00 |
主分类号 |
G09G3/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|