发明名称 |
Light-source module for display device and display device having the same |
摘要 |
<p>A light-source module for a display device and a display device having the same, in which the light-source module includes a plurality of light-emitting units, a current difference controller, and a converter. The light-emitting units are connected in parallel between a driving power input terminal and a ground terminal to emit light by the driving power and to output respective feedback control signals. The current difference controller is configured to output a plurality of power control signals according to the respective feedback control signals. The converter is configured to change a current of the driving power provided to the light-emitting units according to the power control signals. The amounts of currents flowing through the light emitting units each having a plurality of light emitting diodes are measured and the levels of voltages applied to the light-emitting units are changed according to the measurement results. Accordingly, a current difference between the light emitting units can be reduced and the brightness uniformity of the light source can be improved.
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申请公布号 |
EP2017813(A3) |
申请公布日期 |
2010.07.21 |
申请号 |
EP20080012742 |
申请日期 |
2008.07.15 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
YE, BYOUNG-DAE;KIM, GI-CHERL;KANG, EUI-JEONG |
分类号 |
G09G3/34;G02F1/133;G09G3/20;G09G3/36;H01L33/00;H05B37/02 |
主分类号 |
G09G3/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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