Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Driving method of liquid crystal display

A technology of a liquid crystal display and a driving method, which is applied in the field of driving of liquid crystal displays, can solve the problems of affecting display quality, display brightness distortion and the like

Inactive Publication Date: 2008-12-31
HIMAX DISPLAY INC
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the coupling effect between the pixel electrode M11 and the capacitors CA11 and CB11, the pixel signal stored in the capacitor is affected, causing the display brightness to be distorted, and the accumulation of residual charges on the pixel electrode causes the image sticking effect (Image Sticking Effect), which in turn affects the display quality

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 method of liquid crystal display
  • Driving method of liquid crystal display
  • Driving method of liquid crystal display

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0045] image 3 It is a driving circuit diagram of the liquid crystal unit in the first embodiment of the present invention. In this embodiment the switches are implemented as transistors, each transistor having a gate, a drain and a source. Please refer to image 3 , the liquid crystal unit 300 includes a first switch S1, a first capacitor C1, a second switch S2, a pixel electrode M11 and a reset switch Srst. The gate of the first switch S1 is coupled to the scan line WA, the source thereof is coupled to the data line CH1 , and the drain thereof is coupled to the first terminal of the first capacitor C1 . The second terminal of the first capacitor C1 is coupled to the ground terminal GND. The gate of the second switch S2 is coupled to the display signal line DA, the source thereof is coupled to the first terminal of the first capacitor C1 , and the drain thereof is coupled to the pixel electrode M11 . The reset switch Srst has its gate coupled to the reset signal line RST, ...

no. 2 example

[0049] FIG. 5 is a driving circuit diagram of a liquid crystal display according to a second embodiment of the present invention. In this embodiment the switches are implemented as transistors, each transistor having a gate, a drain and a source. Please refer to FIG. 5 , the liquid crystal display 500 includes a plurality of liquid crystal cells. Taking the liquid crystal unit 501 as an example, it includes first and second writable switches TAw11 and TBw11, first and second storage capacitors CsA11 and CsB11, first and second displayable switches TAd11 and TBd11, pixel electrodes M11 and data Line CH1. Wherein, the liquid crystal display 500 displays the first and second frames during the first and second frame times, and each of the first and second frame times further includes liquid crystal response time, light display time and reset time.

[0050] The gate of the first writable switch TAw11 is coupled to the first scan line WA1 , the source thereof is coupled to the dat...

no. 3 example

[0056] FIG. 7 is a driving circuit diagram of a liquid crystal display according to a third embodiment of the present invention. In this embodiment the switches are implemented as transistors, each transistor having a gate, a drain and a source. Please refer to FIG. 7 , the liquid crystal display 700 includes a plurality of liquid crystal cells. Taking the liquid crystal unit 701 as an example, it includes first and second writable switches TAw11 and TBw11, first and second storage capacitors CsA11 and CsB11, first and second displayable switches TAd11 and TBd11, pixel electrodes M11, data Line CH1 and reset switch Tr11. Wherein, the liquid crystal display 700 displays the first and second frames during the first and second frame times, and each of the first and second frame times further includes liquid crystal response time, light display time and reset time.

[0057] The gate of the first writable switch TAw11 is coupled to the first scan line WA1 , the source thereof is ...

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 relates to a driving method of a liquid crystal display (LCD). The driving method includes the following steps: a liquid crystal reacting time and a light displaying time of which a first display switch passes a first picture time is conducted till the end of the appearance of a reset time. Simultaneously, a second write switch is conducted to pre-transmit a pixel signal relevant to a second picture to a second storage capacitor. In the duration of the reset time of the first picture, when the first display switch and the second display switch are both closed up with the first write switch and the second write switch, a reset switch is conducted and a reset voltage signal is provide to a pixel electrode, wherein, the reset voltage signal is a voltage level in a first phase, and is a second voltage level in a second phase. By the method, the brightness of the display can be enhanced and a picture residual effect thereof can be reduced.

Description

technical field [0001] The invention relates to a driving method of a display, and in particular to a driving method of a liquid crystal display. Background technique [0002] A color sequential display (Color Sequential Display) has the advantages of high brightness, high resolution, and high chroma, and uses a light emitting diode (Light Emitting Diode, LED) on the light source to achieve the purpose of reducing the size and weight. However, in order to make red (Red, R), green (Green, G), blue (Blue, B) images can be superimposed to achieve the purpose of color mixing, it is necessary to use faster liquid crystal or smaller The thickness of the liquid crystal layer to increase the response speed of the liquid crystal. [0003] FIG. 1 is a driving circuit diagram of a conventional liquid crystal display. FIG. 2 is a timing diagram of the operation of the circuit of FIG. 1 . Please refer to FIG. 1 and FIG. 2 at the same time, the liquid crystal display 100 includes a plu...

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 范姜冠旭廖炳杰
Owner HIMAX DISPLAY INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com