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Miniature light-emitting element

A light-emitting element and miniature technology, which is applied to the structure of electrical components, semiconductor devices, and optical resonant cavities, can solve the problems of reducing light output efficiency and light loss of micro light-emitting elements, and achieve the effect of reducing light loss and improving light output efficiency

Active Publication Date: 2021-07-30
PLAYNITRIDE DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, there are often some film layers or elements with a large light absorption ratio in the micro light-emitting element, so when the light passes through these film layers or elements, a large proportion will be absorbed and cause light loss, so that Will greatly reduce the light extraction efficiency of micro-light-emitting elements

Method used

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Embodiment Construction

[0032] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used in the drawings and description to refer to the same or like parts.

[0033] The detailed features and advantages of the present invention are described in detail below in the embodiments, which are sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of claims and the accompanying drawings , any person skilled in the art can easily understand the related objects and advantages of the present invention. The following examples further illustrate the concept of the present invention in detail, but do not limit the scope of the present invention in any way.

[0034] Figure 1A A schematic partial cross-...

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Abstract

The invention provides a miniature light-emitting element which comprises a first type of semiconductor layer, a light-emitting layer, a second type of semiconductor layer, a first type of electrode, a second type of electrode and a light reflecting layer. The light-emitting layer is disposed on the first type of semiconductor layer. The second type of semiconductor layer is disposed on the light-emitting layer. The first type of electrode and the second type of electrode are arranged on the second type of semiconductor layer. The light reflecting layer is arranged between the light-emitting layer and the first type of electrode. The light reflecting layer comprises an oxidized area and a non-oxidized area, and the reflectivity of the oxidized area is larger than that of the non-oxidized area. The orthographic projection of a part of the oxidized area on the first type of semiconductor layer is at least partially overlapped with the orthographic projection of the first type of electrode on the first type of semiconductor layer.

Description

technical field [0001] The invention relates to a light emitting element, in particular to a micro light emitting element. Background technique [0002] Generally speaking, the light extraction efficiency of the micro-light emitting device is affected by many factors. For example, there are often some film layers or elements with a large light absorption ratio in the micro light-emitting element, so when the light passes through these film layers or elements, a large proportion will be absorbed and cause light loss, so that It will greatly reduce the light extraction efficiency of the micro light-emitting element. Therefore, how to effectively reduce the light loss and improve the light extraction efficiency of the micro-light-emitting element is a great challenge for those skilled in the art. Contents of the invention [0003] The invention provides a micro light-emitting element, which can effectively reduce light loss and improve its light extraction efficiency. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/46H01S5/10
CPCH01L33/46H01S5/10H01L33/145H01L33/10H01L33/382H01L33/24H01L33/36
Inventor 曾彦钧林子旸吴俊德史诒君
Owner PLAYNITRIDE DISPLAY CO LTD
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