发明授权
- 专利标题： Circuit and method for sensing open-circuit lamp of a backlight unit and display device with circuit for sensing open-circuit lamp of backlight unit
- 专利标题（中）： 用于感测背光单元的开路灯和用于感测背光单元的开路灯的显示装置的电路和方法
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申请号： US11169783申请日： 2005-06-30
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公开(公告)号： US07298096B2公开(公告)日： 2007-11-20
- 发明人: Hyun-Il Shin , Jae Ho Lee , Chang-Ho Lee
- 申请人： Hyun-Il Shin , Jae Ho Lee , Chang-Ho Lee
- 申请人地址： KR Seoul
- 专利权人： LG.Philips LCD Co., Ltd.
- 当前专利权人： LG.Philips LCD Co., Ltd.
- 当前专利权人地址： KR Seoul
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： KR10-2004-0096762 20041124
- 主分类号： H05B37/02
- IPC分类号： H05B37/02
摘要：
A circuit for sensing an open-circuit lamp is provided. The circuit includes a reference voltage output unit, a voltage sensor, and a comparator. The reference voltage output unit provides a reference voltage. The voltage sensor detects a sensed voltage corresponding to a status of a lamp. The status of the lamp includes an open-circuit status and a closed-circuit status. The comparator compares the sensed voltage with the reference voltage and outputs a result indicating the status of the lamp.
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