Display substrate, manufacturing method thereof, and display device

A display substrate, silicon-based technology, applied in the direction of diodes, organic semiconductor devices, semiconductor devices, etc., can solve problems such as short circuit between cathode and anode, and achieve the requirements of reducing production costs, improving product yield, and ensuring surface flatness and uniformity Effect
CN110610975BActive Publication Date: 2022-04-08BOE TECH GRP CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
BOE TECH GRP CO LTD
Publication Date
2022-04-08

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Abstract

The invention provides a display substrate, a preparation method thereof, and a display device. The display substrate includes a stacked microcavity structure layer and a light-emitting structure layer. Reflective electrodes are arranged in the microcavity structure layer, grooves are arranged on the surface of the microcavity structure layer, and the light-emitting structure layer includes The first electrode in the groove is connected to the reflective electrode. The present invention forms a groove on the microcavity structure layer, and the first electrode of the light emitting structure layer is arranged in the groove, effectively controlling the gap between the first electrode and the microcavity structure layer, and not only solves the problem of existing silicon-based There is a short-circuit problem between the cathode and the anode in the preparation process of the OLED microdisplay, and the surface flatness and uniformity requirements of the subsequent evaporation are guaranteed.
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Description

technical field

[0001] The invention relates to the field of display technology, in particular to an organic light-emitting display substrate, a preparation method thereof, and a display device. Background technique

[0002] Microdisplays have a broad market application space, and are especially suitable for use in helmet-mounted displays, stereoscopic display mirrors, and eye-type displays. Microdisplay is in the interdisciplinary field of microelectronics technology and optoelectronics technology, involving a wide range of technologies, including optoelectronics, microelectronics, electronic informatics and optics, etc. technical field. Among them, the silicon-based OLED microdisplay, which combines Organic Light Emitting Diode (OLED) technology and Complementary Metal Oxide Semiconductor (CMOS) technology, is a cross-integrated product of the optoelectronics industry and the microelectronics industry. It can not only promote the development of a new generation of micro-...

Claims

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