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Organic light-emitting display panel and pixel compensation method

A light-emitting display and panel technology, applied in static indicators, instruments, etc., can solve the problems of OLED display display uniformity deterioration and different display brightness, and achieve the effect of ensuring display brightness uniformity

Active Publication Date: 2017-03-15
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since there are multiple light-emitting elements and drive transistors in OLED displays, the degree of degradation of each light-emitting element and the degree of change in carrier mobility of the drive transistors are not the same, which leads to the fact that even if the same display signal is provided to each pixel circuit, The display brightness of these light-emitting elements is also different, which in turn degrades the display uniformity of the OLED display

Method used

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  • Organic light-emitting display panel and pixel compensation method
  • Organic light-emitting display panel and pixel compensation method
  • Organic light-emitting display panel and pixel compensation method

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Embodiment Construction

[0020] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0022] see figure 1 Shown is a schematic structural view of an embodiment of the organic light emitting display panel of the present application.

[0023] The organic light emitting display panel of this embodiment includes a pixel array, a plurality of pixel driving circuits (not shown in the fi...

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Abstract

The invention discloses an organic light-emitting display panel and a pixel compensation method. The organic light-emitting display panel comprises a pixel array comprising M rows and N columns of pixel areas; multiple pixel driving circuits which each comprise a light-emitting diode and a driving transistor used for driving the light-emitting diode, wherein each light-emitting diode is disposed in each pixel area; and multiple pixel compensation circuits which are used for acquiring anode voltages of the light-emitting diode in at least one pixel driving circuit and light-emitting currents flowing through the light-emitting diode and generating compensation signals based on the anode voltages and the light-emitting currents. According to the scheme, threshold voltages of the driving transistors, carrier mobility and decline of the light-emitting diodes can be compensated, and uniformity of display brightness of the organic light-emitting display panel in a time dimension and a space dimension is guaranteed accordingly.

Description

technical field [0001] The present disclosure generally relates to the field of display technology, and in particular, relates to an organic light emitting display panel and a pixel compensation method. Background technique [0002] With the continuous development of display technology, the sizes and specifications of displays are changing with each passing day. In order to meet the portability of electronic devices, the demand for smaller display screens continues to grow. [0003] At the same time, users have also put forward higher requirements for the display quality of the display screen. For example, users tend to prefer high PPI (Pixel per Inch, pixels per inch) display screens to improve display accuracy and coherence. [0004] OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode, Organic Light-Emitting Diode) displays are more and more widely used in various portable electronic devices because of their features such as thinness, lightness and power sav...

Claims

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Application Information

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IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G3/3291G09G2300/0819G09G2300/0842G09G2300/0861G09G2310/0245G09G2320/029G09G2320/043G09G2320/045G09G3/3233G09G2310/0294G09G2320/0233
Inventor 向东旭李玥钱栋陈泽源刘刚
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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