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OLED micro display device and manufacturing method thereof

A micro-display and anode electrode technology, applied in the direction of electrical components, electrical solid devices, circuits, etc., to achieve the effect of reducing manufacturing costs and high resolution

Inactive Publication Date: 2021-08-10
晟合微电子(肇庆)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of OLED micro-display device and manufacturing method thereof, has solved the problem of prior art micro-OLED display device, has realized the ultra-fine pattern of high resolution

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  • OLED micro display device and manufacturing method thereof
  • OLED micro display device and manufacturing method thereof
  • OLED micro display device and manufacturing method thereof

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Embodiment Construction

[0037] Through the following description of the embodiments, it will be more helpful for the public to understand the present invention, but the specific embodiments given by the applicant cannot and should not be regarded as limitations on the technical solutions of the present invention, any components or technical features Changes to the definition and / or formal but not substantive changes to the overall structure should be regarded as the scope of protection defined by the technical solutions of the present invention.

[0038] Such as figure 1 As shown, the micro-OLED display device includes a thin film transistor, a mandatory insulating layer 210, an anode electrode 221, a cathode electrode 223, and a conductive light emitter 240, wherein the thin film transistor includes a gate 150, a source 171, and a drain 173. In the top gate mode In the thin film transistor, a transistor structure on the upper side of the substrate 110 is formed. In order to prevent the diffusion of...

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Abstract

The invention discloses an OLED micro display device and a manufacturing method thereof. The OLED micro display device comprises a film transistor, a first insulating layer, an anode electrode, a cathode electrode and a conductive light emitting device, wherein the first insulating layer is arranged at the upper portion of the film transistor, and the first insulating layer is provided with a recess. The manufacturing method comprises the following steps: etching a passivation layer to form a cathode electrode, etching a first insulating layer to form a recess, electrically connecting the anode electrode with a drain electrode of a film transistor, making the drain electrode of the film transistor penetrate through the passivation layer, and electrically connecting a conductive luminous body in the recess with the anode electrode and the cathode electrode. According to the miniature OLED display device, the manufacturing cost is reduced, and high-resolution hyperfine patterns are realized.

Description

technical field [0001] The invention relates to a device and a manufacturing method thereof, in particular to an OLED micro display device and a manufacturing method thereof. Background technique [0002] In the structure of organic light emitting diode (OLED: Organic Light Emitting Device), a conductive organic light-emitting layer is embedded between the anode electrode and the cathode electrode. While injecting holes, electrons are injected into the cathode electrode. reunited in the middle, and realized the lighting up of the device (Qihui). [0003] In a microdisplay device using an organic light emitting diode (OLED), when an organic light emitting layer is formed on a panel, the RGB vapor deposition method is often used. In particular, the RGB vapor deposition method uses a high-precision metal mask for each color of emitted light. Patterning is to form an organic light-emitting layer on a corresponding pattern. [0004] However, the lateral flow of the organic emit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32
CPCH10K59/124H10K59/12H10K59/131H10K59/1201
Inventor 南潤鍚施伟徐伟术
Owner 晟合微电子(肇庆)有限公司