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Display panel, driving method thereof and display device

A display panel and driving method technology, applied to static indicators, instruments, etc., can solve problems such as screen flickering, electric field reduction, and insufficient deflection of liquid crystals, etc., to achieve the effects of ensuring display quality, ensuring image quality, and avoiding image flickering

Inactive Publication Date: 2015-04-15
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Excessive leakage of the pixel electrode will directly lead to a decrease in the pixel voltage, resulting in a decrease in the electric field between the pixel electrode and the common electrode (that is, a decrease in the storage capacitance formed between the pixel electrode and the common electrode), and thus insufficient deflection of the liquid crystal. , so that the liquid crystal display products are prone to screen flicker when displaying, which affects the picture quality of liquid crystal display products

Method used

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  • Display panel, driving method thereof and display device
  • Display panel, driving method thereof and display device
  • Display panel, driving method thereof and display device

Examples

Experimental program
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Effect test

Embodiment 1

[0033] This embodiment provides a display panel, such as image 3 As shown, including pixel electrode 1, common electrode and liquid crystal ( image 3 are not shown), a first capacitor 3 is formed between the pixel electrode 1 and the common electrode, and a conductive layer ( image 3 not shown in ), the conductive layer overlaps with the pixel electrode 1 to form a second capacitor 5, and the second capacitor 5 is used to compensate the leakage on the pixel electrode 1, so that the voltage on the pixel electrode 1 remains constant.

[0034] It should be noted that, in image 3 In the figure, neither the common electrode nor the conductive layer is shown, and the signal line 4 is connected to the conductive layer for providing a voltage signal to the conductive layer. The common electrode line 2 is connected to the common electrode, and is used to provide a common voltage signal for the common electrode.

[0035] Wherein, the liquid crystal is arranged in the display pane...

Embodiment 2

[0047] This embodiment provides a display panel. The difference from Embodiment 1 is that the common electrode is located on the side of the pixel electrode close to the liquid crystal, the conductive layer is located between the common electrode and the pixel electrode, and the common electrode and the conductive layer do not overlap each other and insulated from each other.

[0048] It is set so that no capacitance will be formed between the common electrode and the conductive layer, so that the second capacitance formed by the conductive layer and the pixel electrode will not have any influence on the common electrode while compensating the leakage of the pixel electrode, so that the conductive layer does not adversely affect the electric field formed between the common electrode and the pixel electrode.

[0049] Other structures of the display panel and the driving method of the display panel in this embodiment are the same as those in Embodiment 1, and will not be repeate...

Embodiment 3

[0051] This embodiment provides a display panel. The difference from Embodiment 1-2 is that the display panel includes a color filter substrate and an array substrate, the pixel electrodes and conductive layers are arranged on the array substrate, and the common electrode is arranged on the color filter substrate; The layer is located on the side of the pixel electrode away from the liquid crystal. That is, the display panel in this embodiment is a twisted nematic (ie TN) display mode.

[0052] It should be noted that the conductive layer can also be located on the side of the pixel electrode close to the liquid crystal, and the common electrode and the conductive layer do not overlap each other and are insulated from each other. It is set so that no capacitance will be formed between the common electrode and the conductive layer, so that the second capacitance formed by the conductive layer and the pixel electrode will not have any influence on the common electrode while comp...

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Abstract

The invention provides a display panel, a driving method thereof and a display device. The display panel comprises a pixel electrode, a common electrode and a liquid crystal, wherein a first capacitor is formed between the pixel electrode and the common electrode. The display panel further comprises a conductive layer, wherein the conductive layer and the pixel electrode are overlapped and form a second capacitor; the second capacitor is used for compensating the electric leakage of the pixel electrode to keep voltage on the pixel electrode constant. According to the display panel, the electric leakage of the pixel electrode can be compensated by the second capacitor formed between the conductive layer and the pixel electrode, so that the liquid crystal in the display panel can be completely deflected under the action of a constant electric field, the phenomenon of flickering during the display of the display panel is further avoided, and the picture quality of the display panel is ensured; meanwhile, low-power consumption display of the display panel can be realized.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, to a display panel, a driving method thereof, and a display device. Background technique [0002] Liquid crystal display products (LCD: Liquid Crystal Display) have become mainstream products in flat panel display devices due to their small size, low power consumption, and no radiation. [0003] With the rapid development of liquid crystal display technology, liquid crystal display products with low power consumption are more and more favored by people. At present, in order to realize the low power consumption display of liquid crystal display products, it is usually necessary to reduce the frame frequency (ie, the frequency of one frame scanning) when the liquid crystal display products are displayed. The pixel voltage waveforms of the same LCD product when the frame frequency is 60Hz and 30Hz are as follows: figure 1 and figure 2 shown, from figure 1 and figur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 严允晟
Owner BOE TECH GRP CO LTD