公开(公告)号：US09696570B2

公开(公告)日：2017-07-04

申请号：US14901038

申请日：2015-04-03

Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.

Inventor： Zhaolin Fang ,  Dongsheng Guo

IPC: H03B1/00 ,  H03K3/00 ,  G02F1/133 ,  G05F3/16 ,  G02F1/1368

CPC classification number: G02F1/13306 ,  G02F1/133 ,  G02F1/1368 ,  G05F3/16 ,  G09G3/20 ,  G09G3/36 ,  G09G3/3655

Abstract: Disclosed are a VCOM generation circuit and a liquid crystal display. The VCOM generation circuit has a voltage divider circuit coupled between a power source input end of the VCOM generation circuit and a ground, and a voltage output end; an operational amplifier output circuit, and one input end is coupled to the voltage output end of the voltage divider circuit, and an output end is a VCOM input end of a liquid crystal display, employed for outputting a liquid crystal drive reference voltage VCOM as the liquid crystal display functions to charge a liquid crystal layer; a delay circuit, coupled between the one input end of the operational amplifier output circuit and the ground, and employed for delaying a change rate of the VCOM as the operational amplifier output circuit outputs the VCOM.

公开(公告)号：US20160104405A1

公开(公告)日：2016-04-14

申请号：US14410924

申请日：2014-10-21

Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.

Inventor： Zhaolin Fang ,  Dongsheng Guo ,  Yu-Yeh Chen ,  Feng Cheng Xu

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/08 ,  G09G2320/045 ,  G09G2320/0673 ,  G09G2370/04

Abstract: A drive circuit and a display device are provided. The drive circuit comprises a programmable gamma IC, a timing controller, a memory, and a control interface. A display device is also provided. After starting up the drive circuit and the display device provided, the gamma value of the programmable gamma IC can be updated in real-time to make the output voltage controlled thereby as accurate as possible. Accordingly, the assembled display device can show the original object or source image more truly.

Abstract translation: 提供驱动电路和显示装置。 驱动电路包括可编程伽马IC，定时控制器，存储器和控制接口。 还提供了显示装置。 在启动驱动电路和提供的显示装置之后，可以实时更新可编程伽马IC的伽马值，使得由此控制的输出电压尽可能准确。 因此，组装的显示装置可以更真实地显示原始对象或源图像。