Shanghai Avic Opto Electronics Co., Ltd.

Tianma Micro-electronics Co., Ltd.

Xiaoyuan Ding

Xupeng Wang

Xu Yang

Zhengyuan Huang

Nana Tian

Zhiyong Ren

Jian Zhao

Song Ye

Xiangchun Wang

Zhifeng Zhu

Shanrong Wang

Baolei Guo

Wenjing Li

Guanzhong Xiong

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.

Display module and heating method thereof

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.

Circuit for testing display panel, method for testing display panel, and display panel

A touch scanning method includes, in the absence of a touch, performing a coarse scanning on the touch screen, and in the presence of a touch, performing a fine scanning on a full detection-activated region containing a touch point while performing the coarse scanning on the remaining region other than the full detection-activated region. During coarse scanning, in first M frames of M+N successive frames, drive lines spaced apart from one another by at least one of the drive lines are driven, and sense lines spaced apart from one another by at least one of the sense lines are detected. In the succeeding N frames of the M+N frames, there is no activity in the drive and sense lines. During the fine scanning, each drive line and each sense line within the full detection-activated region is driven and detected, respectively.

Touch scanning method for touch screen, touch scanning control circuit and display device

A liquid crystal display device is disclosed. The display device includes gate drive ASG circuits, and a driver integrated circuit configured to connect wires from gate line output terminals of the ASG circuits with a client system. The ASG circuits output level signals to the client system, and the client system is configured to determine a duration time during which the level signals from the ASG circuits exceed a preset level signal threshold value, and in response to the duration time being less than the preset time threshold value, the driver integrated circuit receives an adjusted signal code required for operation of the ASG circuits, and the driver integrated circuit drives the ASG circuits according to the adjusted signal code required for operation of the ASG circuits.

Liquid crystal display device

Growing community of inventors

Shanghai, China

Xiaoyuan Ding