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Display panel and display device

A display panel and display device technology, applied in the direction of static indicators, nonlinear optics, instruments, etc., can solve problems such as breaking the balance of sub-pixel brightness, sub-pixel brightness difference, color shift of the picture, etc., to reduce the risk of color shift , the same pixel voltage, and the effect of increasing the storage capacitor value

Inactive Publication Date: 2017-05-31
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

To put it simply, for a certain fixed gray scale, due to the capacitive coupling effect, the actual sub-pixel voltage changes due to the change of the gate voltage after the charging is completed, and the variation of the sub-pixel common voltage is different when other parameters are constant. As a result, the common voltage of the RG sub-pixel and the B sub-pixel cannot be well matched. In the actual driving of the panel, the entire panel adopts a single constant common voltage. The constant voltage deviates, which leads to differences in the brightness of the actual sub-pixels, which breaks the balance of the brightness of the RGB three sub-pixels, resulting in color shift of the panel (such as figure 1 shown), in which there is a serious color shift in the left and right screens of the panel

Method used

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Embodiment Construction

[0026] see figure 2 , is a schematic structural view of the array substrate of the present invention. Such as figure 2 As shown, the array ((Thin Film Transistor, thin film transistor) substrate 100 of the embodiment of the present invention includes a plurality of pixel units, such as figure 2 Pixel units 11 , 12 , 13 and 14 are shown. Each pixel unit includes first to third sub-pixels, such as figure 2 As shown, the pixel unit 11 includes first to third sub-pixels 110 , 111 and 112 . The first to third sub-pixels 110 , 111 and 112 respectively display three colors of R (Red, red), G (Green, green) and B (Blue, blue).

[0027] see image 3 , is a schematic diagram of a circuit structure of an array substrate provided by an embodiment of the present invention. in, image 3 Just an example figure 1 The schematic diagram of the circuit structure of the pixel unit 11 is shown, it should be understood that the circuit structures of other pixel units are similar. Such ...

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Abstract

The invention discloses a display panel and a display device. The display panel comprises a plurality of pixel units, every pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, wherein the color-resisting thickness of the third sub-pixel is more than that of the first sub-pixel or the second sub-pixel, and pixel voltage of the third sub-pixel is compensated to enable the pixel voltage of the first sub-pixel, pixel voltage of the second sub-pixel and pixel voltage of the third sub-pixel are consistent so as to reduce color offset of the panel.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] TFT-LCD liquid crystal display panel technology controls the amount of light output through liquid crystal deflection, and then combines CF (color filter film) to achieve color display. CF includes three types: R (red light), G (green light) and B (blue light). Types of color-resist materials, the light transmittance of the three color-resist materials with the same film thickness is different, considering the requirements of RGB combination to form white light on the CIE color coordinates, in order to compensate the light transmittance of the three color-resist materials Differences, RGB sub-pixels must use different film thicknesses, the actual situation is that R sub-pixels and G sub-pixels use the same thickness, B sub-pixels use a slightly thicker film layer than R sub-pixels and G sub-pixels, three...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/1343G02F1/1362G09G3/36
CPCG02F1/133514G02F1/134309G02F1/136286G09G3/3648
Inventor 尹勇明姚晓慧董成才
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD