发明名称 |
Liquid crystal display panel and liquid crystal display apparatus having the same |
摘要 |
A liquid crystal display panel is disclosed and has a driving circuit, a plurality of data lines, a plurality of scanning lines, and a plurality of pixel units. The driving circuit further includes a programmable DC current source being used to output a corresponding shaping electric current according to a reference voltage, and a shaping resistor being used to generate a corresponding shaping voltage according to the outputted shaping electric current. A liquid crystal display apparatus is also disclosed. The apparatus is able to output shaping voltages with different voltage levels at the same time, thus having a better 3D display effect. |
申请公布号 |
US9640132(B2) |
申请公布日期 |
2017.05.02 |
申请号 |
US201514655338 |
申请日期 |
2015.04.16 |
申请人 |
Shenzhen China Star Optoelectronics Technology Co., Ltd. |
发明人 |
Zhang Xianming;Cao Dan |
分类号 |
G09G3/36 |
主分类号 |
G09G3/36 |
代理机构 |
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代理人 |
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主权项 |
1. A liquid crystal display panel comprising:
a driving circuit being used to provide data signals and scanning signals; a plurality of data lines being used to transmit the data signals; a plurality of scanning lines being used to transmit the scanning signals; and a plurality of pixel units being used to display images by using the data signals under the control of the scanning signals; wherein the driving circuit includes: a programmable DC current source being used to output a corresponding shaping electric current according to a reference voltage; and a shaping resistor being used to generate a corresponding shaping voltage according to the outputted shaping electric current; wherein the corresponding shaping voltage is used to perform a shaping effect on the scanning signal; wherein the programmable DC current source is a constant current source, wherein the constant current source includes a first transistor, a second transistor, a first load resistance and a second load resistance; an emitter of the first transistor is connected to an end of the first load resistance and the ground; a collector of the first transistor is connected to an end of the second load resistance and a base of the second transistor; a base of the first transistor is connected to another end of the first load resistance and an emitter of the second transistor; a collector of the second transistor outputs the corresponding shaping electric current; another end of the second load resistance is connected to receive the reference voltage, wherein the first transistor is a PNP transistor; the second transistor is a PNP transistor; the driving circuit uses the reference voltage of different voltage levels for different image signals so as to generate the corresponding shaping voltages. |
地址 |
Shenzhen CN |