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Optoelectronic device comprising an array of photoluminescent blocks and method for the production of same

A technology for photoluminescence and optoelectronic devices, applied in circuits, electrical components, semiconductor devices, etc., and can solve problems such as imperfect transparency and difficulty in accurate positioning of masks.

Active Publication Date: 2021-09-10
ALEDIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of such an approach is that the photolithographic etch steps for all the different types of photoluminescent blocks require sequential positioning of multiple masks
However, accurate positioning of the mask relative to the optoelectronic device can be a difficult operation, especially due to the fact that the anti-agent filled with photoluminescent particles may only be imperfectly transparent.

Method used

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  • Optoelectronic device comprising an array of photoluminescent blocks and method for the production of same
  • Optoelectronic device comprising an array of photoluminescent blocks and method for the production of same
  • Optoelectronic device comprising an array of photoluminescent blocks and method for the production of same

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Embodiment Construction

[0044] The same elements have been designated with the same reference numerals in different drawings. Specifically, structural and / or functional elements common to different embodiments may be designated with the same reference numerals, and may have the same structural, dimensional, and material properties. For the sake of clarity, only those steps and elements that are useful to the understanding of the described embodiments have been shown and described in detail. The terms "approximately", "approximately", "substantially" and "approximately" are used herein to designate a tolerance of plus or minus 10%, preferably plus or minus 5%, of the value in question.

[0045] The term "particle" as used in the context of this disclosure should be interpreted broadly and not only correspond to compact particles having a more or less spherical shape, but also to angular particles, flat particles, flake shapes particles, fibrous particles or fibrous particles, etc. It is understood t...

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Abstract

The present invention relates to an optoelectronic device (10) comprising a substrate (12), at least hydrophilic photoluminescent blocks (23) comprising hydrophilic photoluminescent particles (24) covering first regions (16) of the substrate, and hydrophobic photoluminescent blocks (25) comprising hydrophobic photoluminescent particles (26) covering second regions (18) of the substrate, the hydrophilic photoluminescent blocks are in contact with a hydrophilic material (20) in the first regions, and the hydrophobic photoluminescent blocks are in contact with a hydrophobic material (22) in the second regions.

Description

[0001] This application claims priority from French Patent Application No. 18 / 73474, the content of which is hereby incorporated by reference in its entirety to the fullest extent permitted by law. technical field [0002] The present disclosure generally relates to optoelectronic devices including arrays of photoluminescent blocks and methods of manufacturing the same, and more particularly, to optoelectronic devices capable of displaying images, particularly display screens or image projection devices. Background technique [0003] A pixel of an image corresponds to a unit element of an image displayed or captured by an optoelectronic device. In order to display color images, optoelectronic devices generally include at least three components for each pixel of the displayed image, also referred to as display sub-pixels, each sequentially emitting light radiation in a single color (e.g., red, green and blue). The superposition of the radiation emitted by the three display s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/50
CPCH01L33/504H01L33/508H01L33/501H01L2933/0041
Inventor 埃莉奥诺拉·加罗尼克里斯托夫·林切诺希尔维亚·斯卡林盖拉
Owner ALEDIA