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

Liquid crystal display device and driving method thereof as well as liquid crystal television

A technology of liquid crystal display device and liquid crystal display panel, which is applied to televisions, color televisions, components of color televisions, etc., can solve the problems of afterimages that are prone to appear in displayed images, affect the image display effect of liquid crystal display devices, etc., so as to improve the image display. effect of effect

Active Publication Date: 2014-02-26
BOE TECH GRP CO LTD +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It is precisely because the above-mentioned DC voltage component exists at the junction of different colors in the displayed image after 2D De-interlace processing, especially at the junction of black and white, so image sticking is prone to appear in the displayed image, which affects the image display effect of the liquid crystal display device

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 display device and driving method thereof as well as liquid crystal television
  • Liquid crystal display device and driving method thereof as well as liquid crystal television
  • Liquid crystal display device and driving method thereof as well as liquid crystal television

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as Figure 5 As shown, the liquid crystal display device in the embodiment of the present invention includes a liquid crystal display panel 100, and a source driver 200 and a gate driver 300 connected to the liquid crystal display panel 100, and the source driver 200 and the gate driver 300 are used for used to control the image display on the liquid crystal display panel 100; wherein, the liquid crystal display device further includes a frequency conversion control unit 400 connected to the source driver 200, and a judgment unit 700 connected to the frequency conversion control unit 400;

[0042] The judging unit 700 is configured to judge the data type of the received data signal; the data type of the data signal may be a data signal without de-interlacing processing, processed by two-dimensional de-interlacing (2D De-interlace) technology The data signal, or the data signal processed by the three-dimensional de-interlacing (3D De-interlace) technology;

[0043]...

Embodiment 2

[0067] An embodiment of the present invention provides a liquid crystal television, such as Figure 10 As shown, the LCD TV includes a TV core system 60 and a liquid crystal display device 10 .

[0068] In this embodiment, the above LCD TV has the following two implementations:

[0069] method one:

[0070] The liquid crystal display device 10 in the liquid crystal television is the liquid crystal display device described in the first embodiment. specifically,

[0071] The TV core system 60 is used to transmit data signals to the liquid crystal display device 10 for screen display;

[0072] The liquid crystal display device 10 is configured to judge the data type of the data signal, adjust the polarity inversion frequency of the driving voltage of the liquid crystal display panel according to the judged data type, and adjust the polarity inversion frequency according to the adjusted polarity inversion frequency. The rotation frequency is used to display the data signal.

...

Embodiment 3

[0081] The embodiment of the present invention also provides a liquid crystal display driving method, such as Figure 11 shown, including the following steps:

[0082] S1. Determine the data type of the received data signal.

[0083] S2. Adjust the polarity inversion frequency of the driving voltage of the liquid crystal display panel according to the data type of the data signal.

[0084]S3. Transmitting the adjusted polarity inversion control signal and data signal to the source driver.

[0085] In the above liquid crystal display driving method, the polarity inversion frequency of the liquid crystal display panel is adjusted correspondingly according to the data type of the data signal to be displayed, so as to avoid residual positive or negative driving voltage DC components before and after the polarity inversion, Therefore, image sticking caused by the DC component will not occur. Compared with the prior art, the solutions provided in the embodiments of the present in...

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 embodiment of the invention provides a liquid crystal display device and a driving method thereof as well as a liquid crystal television, which relate to the technical field of liquid crystal display and are used for improving the image display effect of the liquid crystal display device. The liquid crystal display device comprises a liquid crystal display panel as well as a source driver and a grid driver, wherein the source driver and the grid driver are connected with the liquid crystal display panel; the liquid crystal display device also comprises a frequency conversion control unit connected with the source driver and a judging unit connected with the frequency conversion control unit, wherein the frequency conversion control unit is connected with the source driver; and the judging unit is connected with the frequency conversion control unit; the judging unit is used for judging the data type of a received data signal; and the frequency conversion control unit is used for adjusting a polarity turnover frequency of a driving voltage of the liquid crystal display panel according to the data type judged by the judging unit and transmitting the adjusted polarity turnover control signal and the data signal to the source driver.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display device, a driving method thereof, and a liquid crystal television. Background technique [0002] Although digital TV is being vigorously promoted, the TV signals provided in many areas are still interlaced scanning signals; in order to achieve high-definition playback, it is also necessary to perform 2D (two-dimensional) or 3D (three-dimensional) De-interlace on the interlaced scanning signals (deinterlacing) processing. Since the implementation cost of 3D De-interlace processing is much higher than that of 2D De-interlace processing, many low-end TV (television) manufacturers use 2D De-interlace technology, that is, two-dimensional interpolation algorithm. Among them, the basic principle of 2D De-interlace technology is as follows: figure 1 shown. [0003] Since TV signals are interlaced, such as figure 1 As shown in (a), the odd-numbe...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36H04N5/44
Inventor 周时欢
Owner BOE TECH GRP CO LTD