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

TFT-LCD drive circuit

A driving circuit and scanning driving technology, which is applied in the direction of instruments, static indicators, nonlinear optics, etc., can solve the problems of high temperature and large power consumption, and achieve the effects of cost saving, input voltage reduction, and power loss reduction

Active Publication Date: 2010-03-24
K TRONICS (SUZHOU) TECH CO LTD +1
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a TFT-LCD drive circuit, which effectively solves the defects of the existing TFT-LCD drive circuit, such as large power consumption of data drive chips and scan drive chips, and high temperature during operation.

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
  • TFT-LCD drive circuit
  • TFT-LCD drive circuit
  • TFT-LCD drive circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 2 It is a structural schematic diagram of Embodiment 1 of the TFT-LCD driving circuit of the present invention; figure 2 As shown, the TFT-LCD driver circuit of the present invention includes an interface connector (Interface Connector) 10, a DC / DC converter (DC / DC Converter) 11, a liquid crystal panel 12, a data driver chip 8 and a scan driver chip 9, and several Charge pump unit 13 . Wherein, the interface connector 10 is connected with the DC / DC converter 11, and is used for inputting the external power supply and the low-voltage differential signal (LVDS) to the DC / DC converter 11, and the DC / DC converter 11 is connected with the data driving chip 8 and the scanning The driving chips 9 are connected, and are used to perform DC / DC conversion on the received voltage signal sent by the interface connector 10, and provide driving voltage signals to the data driving chip 8 and the scanning driving chip 9; the data driving chip 8 and the scanning driving chip 9...

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 TFT-LCD drive circuit, including an interface connector, a DC / DC converter, a liquid crystal panel, a data driving chip and a scan driving chip, wherein the DC / DC converter is connected to the data driving chip and the scan driving chip, and the data driving chip and the scan driving chip are respectively connected to the liquid crystal panel. The TFT-LCD drive circuit also includes a plurality of charge-pump units which are integrated on the data driving chip. The invention can reduce the power consumption driving circuit parts of the liquid crystal display panel, and can save the cost of the driving chips.

Description

technical field [0001] The invention relates to a liquid crystal display, in particular to a driving circuit structure of a thin film transistor liquid crystal display device. Background technique [0002] Thin Film Transistor-Liquid Crystal Display (Thin Film Transistor-Liquid Crystal Display, hereinafter referred to as TFT-LCD) is one of the most widely used flat panel displays at present. TFT-LCD generally includes a liquid crystal display panel, a scan driver (Gate Driver) circuit and a data driver (Source Driver) circuit. Wherein, the liquid crystal display panel includes a color filter substrate and a TFT array substrate arranged in opposite boxes, and a liquid crystal layer sandwiched between the two substrates, and a scanning driving circuit and a data driving circuit are respectively connected to the TFT switching elements on the array substrate. Such as figure 1 Shown is a schematic structural diagram of an array substrate on a TFT-LCD in the prior art, which inc...

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
IPC IPC(8): G02F1/1362G02F1/13G09G3/36
Inventor 王洁琼
Owner K TRONICS (SUZHOU) TECH CO LTD