发明名称 |
Level shifter for a liquid crystal display |
摘要 |
This invention is related to a level shifter in an LCD using dual power voltages. A gate voltage generator generates a gate voltage through a charge pumping not to turn on both a PMOS transistor and an NMOS transistor at the same time, and the PMOS transistor is switched by the gate voltage. In this level shifter, a current to generate an output signal flows instantly only the moment the PMOS transistor and the NMOS transistor are switched, and an unwanted current path is therefore not formed. Therefore, a voltage level can be shifted without the unnecessary power consumption in the level shifter.
|
申请公布号 |
US6049228(A) |
申请公布日期 |
2000.04.11 |
申请号 |
US19970990862 |
申请日期 |
1997.12.15 |
申请人 |
SAMSUNG ELECTRONICS, CO., LTD. |
发明人 |
MOON, SEUNG-HWAN |
分类号 |
H03K19/00;H03K19/0185;(IPC1-7):H03K19/018 |
主分类号 |
H03K19/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|