Display panel and display device
A display panel and display area technology, which is applied to semiconductor devices, electrical components, circuits, etc., can solve the problems of poor connection stability between the cathode and the auxiliary conductive part, decrease, and inability to effectively guarantee the total resistance of the cathode, etc., so as to improve display uniformity, The effect of reducing total resistance and improving connection stability
Active Publication Date: 2021-04-27
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Problems solved by technology
However, based on the current technology, the connection stability between the cathode and the auxiliary conductive part is poor, and thus the reduction of the total resistance of the cathode cannot be effectively guaranteed.
Method used
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[0041] 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.
[0042] 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 creative efforts fall within the protection scope of the present invention.
[0043] 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.
[0044] It should be understood that the term "an...
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Embodiments of the present invention provide a display panel and a display device, which relate to the field of display technology and improve the connection stability between a cathode and an auxiliary conductive part on the premise of ensuring a high aperture ratio. The above display panel includes: a base substrate, the base substrate is provided with an array layer; an anode is located on the side of the array layer facing away from the base substrate; a pixel definition layer is located on the side of the anode facing away from the base substrate, and the pixel definition layer includes a second The opening and the first opening exposing the anode; the first island part, located on the side of the pixel definition layer facing away from the substrate, the first island part includes a via hole, the via hole corresponds to the second opening, and the via hole is in the direction perpendicular to the substrate substrate penetrating the first island; the organic light-emitting layer is located on the side of the anode facing away from the base substrate and is defined by the first opening; the cathode is located on the side of the organic light-emitting layer, the pixel definition layer and the first island facing away from the base substrate; The auxiliary conductive part is located between the pixel definition layer and the base substrate; the cathode is electrically connected to the auxiliary conductive part through the via hole and the second opening.
Description
【Technical field】 [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. 【Background technique】 [0002] In order to realize image display, a plurality of light-emitting elements are arranged in the display panel, and the light-emitting elements include an anode, an organic light-emitting layer and a cathode. At present, the cathode in the display panel is mostly vapor-deposited on the entire surface of a transparent conductive material, and the thickness is relatively thin and the resistance is relatively large. In this way, when a negative power signal flows through the cathode, a relatively large voltage drop will be generated, thereby affecting display uniformity. [0003] In order to overcome the above problems, in the prior art, some auxiliary conductive parts are usually added in the display panel, and the total resistance of the cathode is reduced by electrically connecting the cathode to the a...
Claims
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IPC IPC(8): H01L51/52H01L27/32
CPCH10K59/121H10K59/123H10K59/1315H10K59/122H10K50/824H10K59/1201H10K71/191H10K59/80522H10K59/352H10K59/1213H10K71/00
Inventor 霍思涛
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD