公开(公告)号：US20180158389A1

公开(公告)日：2018-06-07

申请号：US15886839

申请日：2018-02-02

Applicant: SHANGHAI AVIC OPTO ELECTRONICS CO., LTD.

Inventor： Zhengyuan HUANG ,  Shuquan FAN ,  Xupeng WANG ,  Shanrong WANG ,  Zhi ZHENG

IPC: G09G3/20 ,  G06F3/048

CPC classification number: G09G3/20 ,  G06F3/048 ,  G09G2310/0264 ,  G09G2310/0291 ,  G09G2320/0247

Abstract: Provided are a display panel and a display device. The display panel includes a drive chip and a switching device, and the drive chip includes a digital interface inputting terminal, a positive driving voltage inputting terminal and a negative driving voltage inputting terminal, and the switching device includes a first switching inputting terminal, a second switching inputting terminal, a third switching inputting terminal, a switching control terminal, a first switching outputting terminal corresponding to the first switching inputting terminal, a second switching outputting terminal corresponding to the second switching inputting terminal and a third switching outputting terminal corresponding to the third switching inputting terminal. The first switching inputting terminal, the second switching inputting terminal, the third switching inputting terminal and the switching control terminal are configured to be electrically connected to a main circuit board. The first switching outputting terminal is electrically connected to the digital interface inputting terminal.

公开(公告)号：US20180040286A1

公开(公告)日：2018-02-08

申请号：US15786571

申请日：2017-10-17

Applicant: SHANGHAI AVIC OPTO ELECTRONICS CO., LTD.

Inventor： Zhengyuan HUANG ,  Xupeng WANG ,  Shuquan FAN ,  Shanrong WANG

IPC: G09G3/36 ,  G09F19/02 ,  G02F1/1333 ,  F16H19/06

CPC classification number: G09G3/3655 ,  F16H19/06 ,  G02F1/133305 ,  G09F19/02 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2340/0435

Abstract: Embodiments of the disclosure provide a display driver circuit board, a driving method of the same, and a display device, where a display refresh frequency detection unit and a common voltage pre-storage and compensation unit are added to the display driver circuit board, so that the display refresh frequency detection unit can detect a display refresh frequency of a frame start signal output by a timing control circuit, and output the detected display refresh frequency to a common voltage pre-storage and compensation unit, and thereafter the common voltage pre-storage and compensation unit can determine a common voltage corresponding to the display refresh frequency output by the display refresh frequency detection unit according to a pre-stored correspondence relationship between respective display refresh frequencies and respective common voltages, and control a power source management circuit to output the common voltage corresponding to the display refresh frequency.