Display panel and display device
A display panel and sub-pixel technology, applied in static indicators, instruments, electrical components, etc., can solve the problems of color shift and uneven light emission of sub-pixels, achieve uniform light emission, avoid color shift, and improve display quality.
Pending Publication Date: 2021-05-28
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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However, although this method can avoid stealing of sub-pixels, due to the different luminous efficiency of different sub-pixels, it is easy to cause uneven light emission of sub-pixels and the problem of color shift.
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[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.
[0028] At present, when the brightness of most OLED panels is extremely low, abnormal phenomena such as bright spots, partial color casts, etc. will appear due to pixel stealing. In order to solve this phenomenon, a reset circuit is provided in related embodiments, such as figure 1 As shown, in the reset circuit, through the operation of "resetting", it is ensured that when the OLED device is not working, the anode potential is lower than the cathode potential, which can better ...
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The embodiment of the invention provides a display panel and a display device.The display panel comprises a plurality of pixel units arranged in an array mode, wherein each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, and the first sub-pixel is electrically connected with a first signal line, the second sub-pixel is electrically connected with a second signal line, the third sub-pixel is electrically connected with a third signal line, the first signal line inputs a first reset voltage to the first sub-pixel, the second signal line inputs a second reset voltage to the second sub-pixel, and the third signal line inputs a third reset voltage to the third sub-pixel. At least two of the first reset voltage, the second reset voltage and the third reset voltage are different. Different reset voltages are input according to different sub-pixels, so that the sub-pixels can be prevented from being lighted secretly, the sub-pixels of the display panel can emit light uniformly, and the problem of color cast of the display panel is avoided.
Description
technical field [0001] The present application relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] OLED display panels have the advantages of wide color gamut, high contrast, energy saving, and foldability. They are widely used in mobile phone screens. Compared with traditional TFT-LCDs, OLED panels do not require backlights. These organic materials emit light when electric current passes through, which is a kind of R / G / B self-luminous display. [0003] Due to the immaturity of the process technology and the difference in the material characteristics of R / G / B devices, when there is an extremely low brightness, some sub-pixels cannot be completely turned off, and leakage occurs, resulting in sub-pixels stealing light. In order to solve this phenomenon, we usually add the operation of "reset" in the working state of the GOA circuit. However, although this method can avoid stealing of the sub-pixels,...
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IPC IPC(8): G09G3/3208H01L27/32
CPCG09G3/3208G09G2320/0242H10K59/35
Inventor 刘贵东
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD