Organic light-emitting display cover plate, manufacturing method and display device
A light-emitting display and organic technology, applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve the voltage drop of organic light-emitting display panels, affect the display quality of organic light-emitting display panels, and poor electrical connection between auxiliary cathode and cathode And other issues
Active Publication Date: 2022-07-01
BOE TECH GRP CO LTD
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Problems solved by technology
[0005] The inventors found that in the current top-emission organic light-emitting display panel packaged with Dam & Fill (Dam&Fill), the auxiliary cathode is arranged on the organic light-emitting display cover plate, and a conductive Material) When the auxiliary cathode is electrically connected to the cathode, the electrical connection effect between the auxiliary cathode and the cathode is poor, and there is often a problem that the auxiliary cathode cannot function effectively due to ineffective connection, resulting in a voltage drop in the organic light-emitting display panel, and the display Problems such as poor brightness uniformity affect the display quality of organic light-emitting display panels
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[0028] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.
[0029] In one aspect of the present invention, the present invention provides an organic light emitting display cover plate. According to an embodiment of the present invention, refer to figure 1 as well as figure 2 ( figure 2 for the edge figure 1 The cross-sectional structure diagram in the direction of AA'), the organic light emitting display cover plate 1000 includes a substrate 100, an auxiliary cathode 200 and a spacer 300, and the substrate 100 has a dam area 110 and a fille...
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The invention discloses an organic light-emitting display cover plate, a manufacturing method thereof, and a display device. The present invention provides an organic light-emitting display cover plate, comprising: a substrate with a dam area and a filler area defined by the dam area, and the filler area can accommodate filler used for packaging; an auxiliary cathode , the auxiliary cathode is arranged on one side of the substrate; the spacer, the spacer is arranged on the side of the auxiliary cathode away from the substrate, and the orthographic projection of the spacer on the substrate is located in the filling area, and the spacer has The top surface in contact with the auxiliary cathode, the bottom surface disposed opposite to the top surface, and the side surface disposed between the top surface and the bottom surface, both the top surface and the bottom surface can conduct electricity, and there is a conductive material in the spacer, and the auxiliary cathode passes through the conductive material and the bottom surface. The bottom surface is electrically connected, and the contact angle between the filling glue and the side surface of the spacer is greater than 90 degrees. Therefore, it can be better avoided that the filler glue affects the electrical connection between the auxiliary cathode and the cathode during packaging, and the display quality of the organic light emitting display panel is improved.
Description
technical field [0001] The present invention relates to the field of display technology, and in particular, to an organic light-emitting display cover plate, a manufacturing method, and a display device. Background technique [0002] Organic electroluminescence (OLED) display technology is characterized by its self-luminescence, wide viewing angle, high contrast ratio, low power consumption, extremely high response speed, ultra-thin weight, soft display, rollable screen, strong temperature adaptability, and simple production process. It has become a research hotspot in the field of optoelectronic display technology. Top-emission organic light-emitting display panels have been widely used due to their advantages such as higher aperture ratio and higher resolution. In order to obtain better light transmittance, the cathode of the top emission organic light emitting display backplane is usually relatively transparent and thin, so an auxiliary cathode is usually required to imp...
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IPC IPC(8): H01L51/52H01L51/56H01L27/32
CPCH10K59/10H10K50/824H10K71/00
Inventor 闫光尤娟娟于东慧林奕呈杨栋芳
Owner BOE TECH GRP CO LTD