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Organic light emitting display panel and display device

A light-emitting display and panel technology, which is applied to semiconductor devices, electrical components, circuits, etc., can solve problems such as potential influence and abnormal display of light-emitting devices, and achieve the effect of reducing coupling effect and improving display effect.

Active Publication Date: 2020-12-04
WUHAN TIANMA MICRO ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In an organic light-emitting display panel, a pixel driving circuit corresponding to each sub-pixel is provided. As the resolution increases, the distance between elements in the pixel driving circuit becomes closer and closer. The light emission control signal line in the pixel driving circuit is used for In order to control whether the light-emitting device emits light, in order to improve the life of the organic light-emitting device, in one frame time, the light-emitting control signal line will control the light-emitting device to not emit light in multiple time periods through a pulse signal. However, due to the distance between the light-emitting control signal line The distance between the anodes of the light-emitting devices is relatively close, which will generate parasitic capacitance, and the jump of the signal on the light-emitting control signal line will affect the potential of the anode of the light-emitting devices, resulting in abnormal display of the light-emitting devices

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  • Organic light emitting display panel and display device
  • Organic light emitting display panel and display device
  • Organic light emitting display panel and display device

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless th...

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Abstract

Embodiments of the present invention provide an organic light-emitting display panel and a display device, which relate to the field of display technology and can reduce the impact of signal jumps on the light-emitting control signal line on the anode of the light-emitting device, thereby improving the display effect. The organic light-emitting display panel includes: a first switching transistor, a driving transistor, and a light-emitting control signal line, located on the gate insulating layer and electrically connected to the gate electrode of the first switching transistor; shielding metal, located on the first interlayer insulating layer; anode connection The metal is located on the second interlayer insulating layer and overlaps the light emission control signal line in the parasitic capacitance area, and the shielding metal covers the parasitic capacitance area; the anode is located on the planarization layer and is electrically connected to the anode connection metal.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an organic light-emitting display panel and a display device. Background technique [0002] In an organic light-emitting display panel, a pixel driving circuit corresponding to each sub-pixel is provided. As the resolution increases, the distance between elements in the pixel driving circuit becomes closer and closer. The light emission control signal line in the pixel driving circuit is used for In order to control whether the light-emitting device emits light, in order to improve the life of the organic light-emitting device, in one frame time, the light-emitting control signal line will control the light-emitting device to not emit light in multiple time periods through a pulse signal. However, due to the distance between the light-emitting control signal line The distance between the anodes of the light-emitting device is relatively close, which will generate parasit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32
CPCH10K59/126H10K59/131
Inventor 向东旭朱仁远李玥高娅娜蔡中兰
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD