发明授权
- 专利标题： Method of driving a light source, light source apparatus for performing the method and display apparatus having the light source apparatus
- 专利标题（中）： 驱动光源的方法，用于执行该方法的光源装置和具有该光源装置的显示装置
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申请号： US13844592申请日： 2013-03-15
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公开(公告)号： US08941320B2公开(公告)日： 2015-01-27
- 发明人: Min-Soo Choi , Won-Sik Oh , Eun-Chul Shin
- 申请人： Samsung Display Co., Ltd.
- 申请人地址： KR
- 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
- 代理机构： Innovation Counsel LLP
- 优先权： KR10-2012-0054416 20120522
- 主分类号： G05F1/00
- IPC分类号： G05F1/00 ; G05F1/40 ; H05B39/00 ; H05B41/36 ; H05B33/08
摘要：
A method of driving a light source includes outputting a variable driving voltage to a light source part, sensing a first voltage based on the driving voltage and developed at a first end of the light source part, sensing a second voltage developed at a second end of the light source part due to current passing through the light source part and adjusting the driving voltage while using the first and second voltages so that power consumption by the light source part is substantially constant irrespective of temperature of the light source part and/or irrespective of a duty cycle ration being used to drive the light source part. Thus, a luminance of the light source part may be maintained at substantially uniform levels.
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