| 发明名称 |
LED backlight driving circuit and LCD device |
| 摘要 |
A light emitting diode (LED) backlight driving circuit of the present disclosure includes a constant current driver chip, a power module, an LED lightbar coupled to the power module, a dimming module coupled to the LED lightbar, and a low-pass filter. The constant current driver chip comprises a multiplier, and the constant current driver chip generates a gate signal and a dimming signal that are sent to an input end of the multiplier. An output end of the multiplier is coupled to the power module, and is coupled to the dimming module through the low-pass filter. |
| 申请公布号 |
US9018859(B2) |
申请公布日期 |
2015.04.28 |
| 申请号 |
US201313884960 |
申请日期 |
2013.04.07 |
| 申请人 |
|
发明人 |
Hu Anle |
| 分类号 |
H05B37/02;H05B33/08;G09G3/34 |
主分类号 |
H05B37/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A light emitting diode (LED) backlight driving circuit, comprising:
a constant current driver chip; a power module; an LED lightbar coupled to the power module; a dimming module coupled to the LED lightbar; and a low-pass filter; wherein the constant current driver chip comprises a multiplier, and the constant current driver chip generates a gate signal and a dimming signal that are sent to an input end of the multiplier, an output end of the multiplier is coupled to the power module, and is coupled to the dimming module through the low-pass filter. |
| 地址 |
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