| 发明名称 | Backlight units and current control methods thereof | ||
| 摘要 | A backlight unit including: at least one light emitting diode (“LED”) string having an anode, which receives a string current, and a chassis-grounded cathode; and a current source control unit which receives a driving current and outputs the string current to the at least one LED string, where the current source control unit senses the driving current and compensates for the string current based on the sensed driving current and a reference voltage. | ||
| 申请公布号 | US8779665(B2) | 申请公布日期 | 2014.07.15 |
| 申请号 | US201113313198 | 申请日期 | 2011.12.07 |
| 申请人 | Samsung Display Co., Ltd. | 发明人 | Oh Won Sik;Kwon Youngsup;Park Jaekyu;Shin Eun Chul;Um Jaeeun |
| 分类号 | H05B37/02 | 主分类号 | H05B37/02 |
| 代理机构 | Cantor Colburn LLP | 代理人 | Cantor Colburn LLP |
| 主权项 | 1. A backlight unit comprising: at least one light emitting diode (LED) string having an anode, which receives a string current, and a chassis-grounded cathode; and a current source control unit which receives a driving current and outputs the string current to the at least one LED string, wherein the current source control unit senses the driving current and compensates for the string current based on the sensed driving current and a reference voltage, and wherein the reference voltage correspond to luminance of light emitted from the at least one LED string. | ||
| 地址 | KR | ||