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Driving method of display panel and display panel

A technology of a display panel and a driving method, which is applied to static indicators, instruments, etc., can solve the problems of driving transistor organic light-emitting diode conduction voltage drift, affecting the current and display brightness of light-emitting devices, and display panel burn-in, etc., so as to reduce burn-in. Screen phenomenon, provide display uniformity, delay aging effect

Active Publication Date: 2021-07-13
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
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Problems solved by technology

[0005] The invention provides a display panel driving method and a display panel, which can solve the problem that the threshold value of the drive transistor and the conduction voltage of the organic light-emitting diode will drift after the display device works for a long time, which directly affects the current flowing through the light-emitting device and the display. Brightness, thus causing the technical problem of display panel burn-in phenomenon

Method used

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  • Driving method of display panel and display panel
  • Driving method of display panel and display panel
  • Driving method of display panel and display panel

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Embodiment Construction

[0029] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are only for reference The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figure, units with similar structures are indicated by the same reference numerals, and the dotted lines in the figure indicate that they do not exist in the structure, and only illustrate the shape and position of the structure.

[0030] The present invention aims at that after the display device in the prior art works for a long time, the threshold value of the drive transistor and the conduction voltage of the organic light-emitting diode will drift,...

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Abstract

The invention provides a driving method of a display panel and the display panel, the display panel comprises a first display subarea and a second display subarea which are uniformly dispersed, and pixel driving circuits of the first display subarea and the second display subarea in a display frame are alternately reversely biased; the threshold voltage of a driving thin film transistor and the break-over voltage of a light-emitting device OLED of the first display subarea and the second display subarea are adjusted, aging of the driving thin film transistor and the light-emitting device OLED is delayed, and it is ensured that the threshold voltage of the driving thin film transistor and the break-over voltage of the light-emitting device OLED are within a reasonable range. Therefore, the probability of the burn-in phenomenon of the display panel is reduced; meanwhile, the phenomenon that the display panel flickers when the pixel driving circuit is reversely biased is avoided, and therefore the display uniformity of pixels is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for driving a display panel and the display panel. Background technique [0002] As more and more displays use organic light-emitting diode (Organic Light-Emitting Diode, OLED) display panels for image display, after a display displays a certain still image for a long time, if the display device is turned off, the image will be displayed on the display. The location shown in will leave an afterimage of that image, a phenomenon known as screen burn-in. For example, after the mobile phone displays the power icon for a long time, the mobile phone screen is black, and the position where the power icon is displayed on the mobile phone display will leave an afterimage of the lit icon, which is mainly due to the aging of the light-emitting devices and thin-film transistors in the OLED display device, resulting in screen burn-in. Phenomenon. [0003] Organic light-emitting di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208G09G3/3266G09G3/3291G09G3/3258
CPCG09G3/3208G09G3/3266G09G3/3291G09G3/3258G09G2320/0233
Inventor 陈小明
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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