| 发明名称 |
Direct Type LED Backlight and Liquid Crystal Display Thereof |
| 摘要 |
The present invention provides a direct type LED backlight and a liquid crystal display thereof. The direct type LED backlight comprises a power converting circuit, which transfers an alternating current voltage generated from an external liquid crystal display into direct an current voltage and outputs it; multiple LED strings connected in parallel, wherein each LED string comprises a predetermined amount of LED connected in parallel, which receives a direct current from the power converting circuit; wherein, the predetermined amount is limited to that the direct current of the LED string emitting light normally is smaller than or equal to the direct current output from the power converting circuit. According to the direct type LED backlight of the present invention, it can avoid using a boost circuit in order to decrease circuit complexity and save costs. |
| 申请公布号 |
US2014167629(A1) |
申请公布日期 |
2014.06.19 |
| 申请号 |
US201213811404 |
申请日期 |
2012.12.21 |
| 申请人 |
Chen Wei;Chen Xinhong;Zhang Hua |
发明人 |
Chen Wei;Chen Xinhong;Zhang Hua |
| 分类号 |
G02F1/1335;H05B33/08 |
主分类号 |
G02F1/1335 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A direct type LED backlight, comprising:
a power converting circuit, which transfers an alternating current voltage generated from an external liquid crystal display into direct an current voltage and outputs it; multiple LED strings connected in parallel, wherein each LED string comprises a predetermined amount of LED connected in parallel, which receives a direct current from the power converting circuit; wherein, the predetermined amount is limited to that the direct current voltage of the LED string emitting light normally is smaller than or equal to the direct current voltage output from the power converting circuit.
|
| 地址 |
Shenzhen CN |
