公开(公告)号：US11867994B2

公开(公告)日：2024-01-09

申请号：US17139486

申请日：2020-12-31

Applicant: Shanghai AVIC OPTO Electronics Co., Ltd.

Inventor： Xiangchun Wang ,  Xiaoyuan Ding ,  Guanzhong Xiong ,  Jian Zhao

IPC: G02F1/1333 ,  G01K7/16 ,  H05B1/02 ,  H05B3/34

CPC classification number: G02F1/133382 ,  G01K7/16 ,  H05B1/0202 ,  H05B1/023 ,  H05B3/34 ,  H05B2203/005 ,  H05B2203/016 ,  H05B2203/035

Abstract: A display module includes: a heating circuit, a gating circuit and a plurality of heating lines. The heating circuit includes a first type of heating signal output terminal and a second type of heating signal output terminal, and the gating circuit includes a gating unit. The first type of heating signal output terminal is electrically connected to a first type of signal input terminal of the gating unit, and a first type of signal output terminal of the gating unit is electrically connected to a first terminal of a heating line; and/or the second type of heating signal output terminal is electrically connected to a second type of signal input terminal of the gating unit, and a second type of signal output terminal of the gating unit is electrically connected to a second terminal of the heating line.

公开(公告)号：US20210124210A1

公开(公告)日：2021-04-29

申请号：US17139486

申请日：2020-12-31

Applicant: Shanghai AVIC OPTO Electronics Co., Ltd.

Inventor： Xiangchun Wang ,  Xiaoyuan Ding ,  Guanzhong Xiong ,  Jian Zhao

IPC: G02F1/1333 ,  H05B1/02 ,  H05B3/34 ,  G01K7/16

Abstract: A display module includes: a heating circuit, a gating circuit and a plurality of heating lines. The heating circuit includes a first type of heating signal output terminal and a second type of heating signal output terminal, and the gating circuit includes a gating unit. The first type of heating signal output terminal is electrically connected to a first type of signal input terminal of the gating unit, and a first type of signal output terminal of the gating unit is electrically connected to a first terminal of a heating line; and/or the second type of heating signal output terminal is electrically connected to a second type of signal input terminal of the gating unit, and a second type of signal output terminal of the gating unit is electrically connected to a second terminal of the heating line.

公开(公告)号：US10325535B2

公开(公告)日：2019-06-18

申请号：US15421123

申请日：2017-01-31

Applicant: Shanghai AVIC OPTO Electronics Co., Ltd. ,  Tianma Micro-electronics Co., Ltd.

Inventor： Xu Yang ,  Nana Tian ,  Xupeng Wang ,  Zhiyong Ren ,  Xiaoyuan Ding ,  Zhengyuan Huang

IPC: G09G3/00 ,  G09G3/36 ,  G01R31/02

Abstract: A method for testing a display panel includes: applying a first level signal to a first sub-pixel and a third sub-pixel of a first pixel unit and applying a second level signal to a second sub-pixel of the first pixel unit; applying the second level signal to a first sub-pixel and a third sub-pixel of a second pixel unit and applying the first level signal to a second sub-pixel of the second pixel unit; and detecting a short circuit between adjacent sub-pixels. The first level signal has a voltage polarity opposite to a voltage polarity of the second level signal. Therefore, it is ensured that any two adjacent sub-pixels have opposite voltage polarities when the short circuit between adjacent sub-pixels of the display panel is detected. The method also provides improved testing abilities to detect an open circuit in a sub-pixel.