Unlock instant, AI-driven research and patent intelligence for your innovation.

Driving circuit and driving method thereof, display panel and display device

A driving circuit and voltage terminal technology, which is applied in the direction of static indicators, electrical digital data processing, digital memory information, etc., can solve problems such as low potential, interference with Gate signals, and abnormal display of the screen, so as to improve quality, avoid interference, and improve uniformity effect

Active Publication Date: 2019-01-22
BOE TECH GRP CO LTD +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention provides a driving circuit and its driving method, a display panel and a display device, which at least partially solve the problem that the potential of the pull-up node in the existing driving circuit cannot be pulled down normally, thereby interfering with the Gate signal, resulting in Screen display abnormal problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Driving circuit and driving method thereof, display panel and display device
  • Driving circuit and driving method thereof, display panel and display device
  • Driving circuit and driving method thereof, display panel and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] figure 1 It is a schematic structural diagram of a driving circuit provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the drive circuit includes a pull-up unit 101, a reset unit 102, a pull-down unit 103, and an output unit 104. The pull-up unit 101 is connected to the first signal terminal CN, the second signal terminal STV, and the third signal terminal CK respectively. , the fourth signal terminal CKB, the first voltage terminal VGL, the pull-down node PD and the pull-up node PU are connected, the pull-down node PD is the connection point of the pull-up unit 101, the pull-down unit 103 and the output unit 104, and the up The pull node PU is the connection point of the pull-up unit 101, the pull-down unit 103, the reset unit 102 and the output unit 104, and the reset unit 102 is respectively connected to the reset terminal RESET, the second voltage terminal CNB and the pull-up node PU, so The pull-down unit 103 is respectively connected to...

Embodiment 2

[0050] image 3 It is a flowchart of a driving method for a driving circuit provided by Embodiment 2 of the present invention. see figure 1 and image 3 , the driving circuit includes a pull-up unit 101, a reset unit 102, a pull-down unit 103, and an output unit 104, and the pull-up unit 101 is respectively connected to the first signal terminal CN, the second signal terminal STV, the third signal terminal CK, the The four signal terminals CKB, the first voltage terminal VGL, the pull-down node PD and the pull-up node PU are connected, the pull-down node PD is the connection point of the pull-up unit 101, the pull-down unit 103 and the output unit 104, and the pull-up node PU is the connection point of the pull-up unit 101, the pull-down unit 103, the reset unit 102 and the output unit 104, the reset unit 102 is respectively connected to the reset terminal, the second voltage terminal and the pull-up node PU, and the pull-down unit 103 respectively connected to the fourth s...

Embodiment 3

[0060] This embodiment provides a display panel, including the driving circuit provided in Embodiment 1. For details, refer to the description of Embodiment 1, which will not be repeated here.

[0061] In the display panel provided in this embodiment, the drive circuit includes a pull-up unit, a reset unit, a pull-down unit, and an output unit, and the pull-up unit is configured according to the first signal terminal, the second signal terminal, the third signal terminal, and the fourth signal terminal. The input signal at the terminal and the potential of the pull-down node control the potential of the pull-up node, the reset unit controls the potential of the pull-down node according to the input signal of the reset terminal, and the pull-down unit controls the pull-down according to the input signal of the fourth signal terminal, the output signal of the output terminal and the potential of the pull-up node The potential of the node, the output unit controls the output signa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a driving circuit and its driving method, a display panel and a display device. The driving circuit includes a pull-up unit, a reset unit, a pull-down unit and an output unit. The input signal of the signal terminal, the third signal terminal, the fourth signal terminal and the potential of the pull-down node control the potential of the pull-up node, the reset unit controls the potential of the pull-down node according to the input signal of the reset terminal, and the pull-down unit controls the potential of the pull-down node according to the input signal of the fourth signal terminal, output The output signal of the terminal and the potential of the pull-up node control the potential of the pull-down node, and the output unit controls the output signal of the output terminal according to the input signal of the third signal terminal, the potential of the pull-down node and the pull-up node. The present invention normally pulls down the potential of the pull-up node, thereby preventing the Gate signal from being interfered by other signals, making the display of this line consistent with the display of other lines, improving the uniformity of the display screen, and finally improving the quality of the display screen .

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a driving circuit and a driving method thereof, a display panel and a display device. Background technique [0002] The existing HIC (Hybrid In Cell) touch display panel adopts a time-sharing drive mode, that is to say, the HIC touch display panel performs a display scan for a preset time, and after the display scan stops, the control signal is input, and then the display scan is performed. The touch signal input is performed again, and the process is repeated sequentially. At this time, the potential of the pull-up node in the row driving circuit (Gate Driver on Array, GOA) of the array substrate cannot be pulled down normally, thereby interfering with the Gate signal, resulting in abnormal display of the screen. Contents of the invention [0003] In order to solve the above problems, the present invention provides a driving circuit and its driving method, a display ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G06F3/041
CPCG06F3/0412G09G3/20G09G3/3674G09G2300/0408G09G2310/0267G09G2310/0286G09G2310/08G11C19/28
Inventor 李艳徐成福时凌云孙伟
Owner BOE TECH GRP CO LTD