发明授权
- 专利标题： Illumination sensing device having a reference voltage setting apparatus and a display device including the illumination sensing device
- 专利标题（中）： 具有参考电压设定装置和包括该照明感测装置的显示装置的照明感测装置
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申请号： US12915487申请日： 2010-10-29
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公开(公告)号： US09001095B2公开(公告)日： 2015-04-07
- 发明人: Sung-Un Park , Soon-Sung Ahn , Do-Youb Kim
- 申请人： Sung-Un Park , Soon-Sung Ahn , Do-Youb Kim
- 申请人地址： KR Yongin-si
- 专利权人： Samsung Display Co., Ltd.
- 当前专利权人： Samsung Display Co., Ltd.
- 当前专利权人地址： KR Yongin-si
- 代理机构： Christie, Parker & Hale, LLP
- 优先权： KR10-2009-0106650 20091105
- 主分类号： G06F3/038
- IPC分类号： G06F3/038 ; G09G5/00 ; H03K3/356 ; G09G3/20
摘要：
A reference voltage setting apparatus including: a current generator having a first device to supply a first dark current and a second device to supply a second dark current; a first operational amplifying unit connected to the current generator; and a voltage setting unit connected to the first operational amplifying unit and setting a reference voltage having a compensated offset voltage of the first operational amplifying unit, and an illumination sensing device and a display device including the reference voltage setting apparatus.
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