发明名称 |
Semiconductor device, light-emitting display device and driving method thereof |
摘要 |
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.
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申请公布号 |
US7307604(B2) |
申请公布日期 |
2007.12.11 |
申请号 |
US20030744066 |
申请日期 |
2003.12.24 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
MIYAGAWA KEISUKE;FUKUMOTO RYOTA |
分类号 |
G09G3/00;G09G3/20;G09G3/30;G09G3/32;H05B33/00 |
主分类号 |
G09G3/00 |
代理机构 |
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主权项 |
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地址 |
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