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Display driving circuit, control method thereof and display device

A display driver and circuit technology, applied in static indicators, instruments, etc., can solve the problems of insufficient charging, insufficient noise reduction, abnormal display, etc.

Active Publication Date: 2018-11-23
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the voltage of the pull-up node is unstable, such as insufficient charging or insufficient noise reduction, abnormal display will occur

Method used

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  • Display driving circuit, control method thereof and display device
  • Display driving circuit, control method thereof and display device
  • Display driving circuit, control method thereof and display device

Examples

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] Some embodiments of the present disclosure provide a display driving circuit, such as figure 1 As shown, it includes: a timing controller (Timing Controlling, TCON) 10 , a power management integrated (Power Management IC, PMIC) sub-circuit 20 and a gate driving sub-circuit 30 .

[0037] The timing controller 10 is connected with the power management integrated sub-circuit 20 and the gate driving sub-circuit 30 . The timing controller 10 is used to prov...

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PUM

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Abstract

The embodiment of the invention provides a display driving circuit, a control method thereof, and a display device, is used for reducing the unstable voltage of a pull-up node. The display driving circuit comprises a time sequence controller, a power management integration sub-circuit and a grid driving sub-circuit. The time sequence controller provides time sequence signals to the power management integration sub-circuit and the gate driving sub-circuit respectively. The power management integration sub-circuit, under the control of a time sequence signal output by the time sequence controller, provides signals for a clock signal end and a first control signal end of a first-level shift register in the grid driving sub-circuit respectively. The voltage amplitude of the effective signal received by the clock signal end is different from the voltage amplitude of the effective signal received by the first control signal end.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display driving circuit, a control method thereof, and a display device. Background technique [0002] The display area of ​​TFT-LCD (Thin Film Transistor Liquid Crystal Display, Thin Film Transistor-Liquid Crystal Display) is provided with horizontal and vertical gate lines and data lines, and the non-display area is provided with gate drivers for providing gate scanning signals to the gate lines. circuit. Each stage of the shift register of the gate drive circuit is provided with a pull-up node for controlling the turn-on or turn-off of the drive transistor. When the voltage of the pull-up node is unstable, such as insufficient charging or insufficient noise reduction, abnormal display will occur. Contents of the invention [0003] Embodiments of the present invention provide a display driving circuit and its control method, and a display device, which are used t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3611G09G3/3696
Inventor 谢勇贤王慧李佑路邓传峰贺之洋
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD