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Charging circuit, display panel driving circuit and display device

A technology of display panel and charging circuit, applied in static indicators, instruments, etc., can solve the problem of slow charging of pixels, and achieve the effect of improving the charging speed of pixels

Active Publication Date: 2021-11-05
HKC CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a charging circuit designed to solve the problem of slow charging of pixels by source driver chips

Method used

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  • Charging circuit, display panel driving circuit and display device
  • Charging circuit, display panel driving circuit and display device
  • Charging circuit, display panel driving circuit and display device

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Embodiment Construction

[0030] 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 part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] It should be noted that the descriptions involving "first", "second" and so on in the present invention are only for the purpose of description, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical ...

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PUM

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Abstract

The invention discloses a charging circuit, a display panel driving circuit and a display device, wherein the charging circuit includes a data voltage input terminal, a first voltage input terminal, a second voltage input terminal, a voltage detection output circuit and a switch circuit, and the voltage detection output circuit Detect the voltage of the data signal output by the source driver chip, and output the first voltage and the second voltage correspondingly, the switch circuit receives the first timing control signal and connects the first input terminal and the first output terminal, and the first voltage or the The second voltage charges the pixels quickly. When the voltage of the pixel reaches the preset target voltage, the switch circuit receives the second timing control signal and connects the second input terminal to the output terminal, and the source driver chip completes fine Charge. The charging circuit of the present invention respectively performs high-current fast charging and fine charging for the pixels, thereby increasing the pixel charging speed of the display panel.

Description

technical field [0001] The invention relates to the technical field of display panels, in particular to a charging circuit, a display panel driving circuit and a display device. Background technique [0002] TFT-LCD (Thin Film Transistor Liquid Crystal Display, Thin Film Transistor Liquid Crystal Display) is one of the main varieties of flat panel display, and has become an important display platform in modern IT and video products. The main driving principle of TFT-LCD is that the main board of the system connects the R / G / B compression signal, control signal and power supply to the connector on the PCB board through wires, and the data is processed by the TCON (Timing Controller, timing controller) IC on the PCB board. Finally, it is connected to the display area through S-COF (Source-Chip on Film, source-level film drive chip) and G-COF (Gate-Chip on Film, gate film drive chip), so that the LCD can obtain the required power and Signal. [0003] Among them, the source-lev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3696
Inventor 黄笑宇
Owner HKC CORP LTD