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A display panel and display device thereof

A technology for display panels and substrates, applied in semiconductor devices, electrical components, circuits, etc., can solve the problems of different driving signals, affecting display effects, and uneven brightness of light-emitting elements

Active Publication Date: 2021-02-02
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] With the advent of the era of full-screen and large-size displays, due to the different positions of the light-emitting elements, when the drive signal is provided to the cathode of each light-emitting element, the received drive signal of each light-emitting element will be different due to the voltage drop, resulting in The brightness of each light-emitting element is uneven, which affects the display effect

Method used

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  • A display panel and display device thereof
  • A display panel and display device thereof
  • A display panel and display device thereof

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Embodiment Construction

[0033] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to 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 the context clearly indicates otherwise.

[0036] It should be understood that the ter...

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Abstract

The invention provides a display panel and a display device thereof, which relate to the field of display technology and are used for improving voltage drop, improving uniformity of driving signals received by light-emitting elements at various positions, and improving display effect. The display panel is a top emission structure, and the display panel includes: a base substrate, a pixel definition layer located on one side of the base substrate, the pixel definition layer includes an opening area and a non-opening area, and the opening area does not intersect with the non-opening area stack; a plurality of light-emitting elements, the light-emitting elements correspond to the opening area of ​​the pixel definition layer, the light-emitting elements include an anode, a light-emitting layer and a first cathode, wherein the light-emitting layer is located in the pixel definition layer In the opening area; a capping layer located on the side of the first cathode away from the base substrate, the capping layer covers a plurality of the light-emitting elements; the capping layer includes a first dopant, and the first dopant The dopant includes alkaline earth metal elements or transition metal elements. The above display panel is applicable to a display device.

Description

【Technical field】 [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device thereof. 【Background technique】 [0002] Compared with many display panels, the OLED (Organic Light-Emitting Diode, hereinafter referred to as OLED) display panel has many advantages such as active light emission, high contrast ratio, and no viewing angle limitation. OLED display panels are not only lighter and thinner in size, but also lower in power consumption than other display devices, which helps to improve the battery life of display devices. Therefore, OLED display panels are widely used in the field of display technology and will become the future of display devices. mainstream products. [0003] With the advent of the era of full-screen and large-size displays, due to the different positions of the light-emitting elements, when the drive signal is provided to the cathode of each light-emitting element, the received drive ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32
CPCH10K59/88H10K59/122
Inventor 那晓曦牛晶华戴铭志程爽刘银河
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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