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

Liquid crystal displayer and driving circuit thereof

A technology of liquid crystal display and driving circuit, which is applied to static indicators, instruments, etc., can solve the problem that the afterimage of the liquid crystal panel 30 cannot be completely eliminated, and achieve the effect of prolonged time and fast afterimage.

Inactive Publication Date: 2011-04-06
HIMAX TECH LTD
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And when the voltage of the reset signal XAO is raised to a certain potential, the scan line voltage V output by the logic circuit 40 will be G becomes a low potential, and then causes the thin film transistors coupled to each pixel electrode of the liquid crystal panel 30 to be turned off, so that the residual image of the liquid crystal panel 30 cannot be completely eliminated

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
  • Liquid crystal displayer and driving circuit thereof
  • Liquid crystal displayer and driving circuit thereof
  • Liquid crystal displayer and driving circuit thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] figure 2 It is a functional block diagram of a liquid crystal display according to an embodiment of the present invention. Please refer to figure 2 , the liquid crystal display 200 in this embodiment has a liquid crystal panel 30 and a driving circuit 110 . The driving circuit 110 is used to control on and off of thin film transistors (not shown) on a plurality of scan lines (not shown) of the liquid crystal panel 30 . The driving circuit 110 has a reset circuit 10 , a pull-up circuit 120 , a buffer 130 , a pull-down circuit 140 and a logic circuit 150 . It is worth noting that, figure 2 Only the part of the liquid crystal display 200 that is more relevant to the present invention is shown in the figure, and the liquid crystal display 200 actually has other components, such as a source driver, a timing control circuit, etc., which are omitted here for convenience of description. do not mention.

[0054] The reset circuit 10 has an output terminal 12 and is adapt...

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 liquid crystal displayer and a driving circuit thereof. When the liquid crystal displayer is turned off, the driving circuit can maintain a voltage input to a logic circuit of the liquid crystal displayer at a low value, so that all thin-film transistors on a liquid crystal panel, after the liquid crystal displayer, is turned off can maintain a longer starting time; therefore, the charge neutralization time of a pixel electrode is prolonged for allowing the residual images on the liquid crystal displayer to disappear completely and quickly.

Description

technical field [0001] The invention relates to a liquid crystal display and its drive circuit, and in particular to a liquid crystal display and its drive circuit which can quickly and completely eliminate afterimages after the liquid crystal display is turned off. Background technique [0002] Flat panel displays, such as liquid crystal displays (Liquid Crystal Display, LCD), are widely used in personal digital assistants (PDAs) due to their advantages of high image quality, small size, light weight, low driving voltage, and low power consumption. Assistant, PDA), mobile phones, camcorders, notebook computers, desktop monitors, car monitors and projection TVs and other consumer communications or electronic products, and gradually replace the cathode ray tube (Cathode Ray Tube, CRT) And become the mainstream of the display. [0003] In the general LCD structure, after the LCD is turned off, there will often be a residual image on the LCD panel, and sometimes it will disapp...

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): G09G3/36
Inventor 薛涵水陈致玮
Owner HIMAX TECH LTD