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A driving method of a display panel, a driving device thereof, and a display device

A driving method and display panel technology, applied to static indicators, instruments, etc., can solve problems such as screen flickering, and achieve the effect of avoiding flickering

Active Publication Date: 2021-04-27
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] An embodiment of the present invention provides a method for driving a display panel, its driving device, and a display device, so as to solve the problem in the prior art that the viewer sees flicker when the two refresh rates are switched.

Method used

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  • A driving method of a display panel, a driving device thereof, and a display device
  • A driving method of a display panel, a driving device thereof, and a display device
  • A driving method of a display panel, a driving device thereof, and a display device

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Embodiment Construction

[0042]At present, advanced super-dimensional field switch (ADS) technology can improve the picture quality of TFT-LCD products, with high resolution, high transmittance, low power consumption, wide viewing angle, high aperture ratio, low color difference, and no extrusion water ripple (push Mura) and other advantages. Among them, HADS (High Aperture Ratio-Advanced Hyperdimensional Field Conversion) is an important realization form in ADS technology, and its aperture ratio is higher. A HADS panel currently used, in order to reduce power consumption, there are generally two refresh rates of 60hz / 40hz, but the display screens under these two refresh rates have a problem of brightness difference (the brightness difference is about 1.5nit). When the two refresh rates are switched, the viewer will see flickering of the picture. The main reason for the difference in brightness of the HADS-type panel under the two refresh rates of 60hz / 40hz is that the liquid crystal rod-shaped molec...

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Abstract

The invention discloses a driving method of a display panel, its driving device and a display device. By determining the refresh frequency of the frame to be displayed according to the received data signal of the frame to be displayed, different gammas are called for different refresh frequencies. Curves, so that the display brightness of the frames to be displayed at different refresh rates is the same. Specifically, corresponding to the frames to be displayed with a high refresh rate, a gamma curve with high brightness can be called, that is, the frames to be displayed with a high refresh rate are driven by a gamma curve with high brightness, and the frames to be displayed with a small refresh The display frame picture can call the gamma curve with low brightness, that is, the frame picture to be displayed with a small refresh rate is driven by the gamma curve with low brightness, so that the frame picture to be displayed with a high refresh rate and the frame to be displayed with a small refresh rate The display brightness of the screen is the same, which can avoid the flickering phenomenon of the display screen when switching between different refresh rates.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a driving method of a display panel, a driving device thereof and a display device. Background technique [0002] Liquid Crystal Display (LCD) has the advantages of low radiation, small size and low power consumption, and is widely used in electronic products such as notebook computers, flat-screen TVs or mobile phones. [0003] At present, liquid crystal displays have developed various types such as twisted nematic (TN) type, advanced ultra-dimensional field switch (ADS) type, high aperture ratio and advanced ultra-dimensional field switch (HADS) type, and in-plane switching (IPS) type. , their driving modes and display effects are not the same, each has its own strengths. [0004] Among various types, the ADS type liquid crystal display has common electrodes and pixel electrodes arranged on the array substrate, and is widely used because of its advantages of wide viewing angl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3696G09G3/3607G09G2320/0276G09G2320/0673G09G2340/0435G09G2310/08G09G3/36G09G3/3685G09G2370/08G09G3/3618G09G2310/027
Inventor 冉博高贤永张英李云松陈善彬许志财雷嗣军高亮
Owner BOE TECH GRP CO LTD
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