US 2022/0285593 A1 · Micro LED Display Element

Abstract

The present invention provides a flip-chip mounted monolithic micro LED having improved contrast. The light-emitting device includes a substrate, an n-type layer, a light-emitting layer, a p-type layer, a transparent electrode, a p-electrode, an n-electrode, a protective film, an absorbing structure, and a side wall insulating film. The absorbing structure is a layered body in which a dielectric film and a metal film are alternately deposited, and the top layer is a dielectric film. Reflected light of light emitted from the light-emitting layer or reflected light of light from the outside, or transmitted light from the backside of the substrate can be absorbed by the absorbing structure, thereby improving contrast.

Claims19

Dependent claims

A flip-chip mounted monolithic micro LED display element having a plurality of light-emitting parts arranged in a matrix, the micro LED display element comprising:

a substrate;
an n-type layer disposed on or above the substrate;
a light-emitting layer disposed on or above the n-type layer;
a p-type layer disposed on or above the light-emitting layer;
a plurality of first electrodes formed for each light-emitting part on or above the p-type layer;
and
an absorbing structure absorbing light disposed on or above the first electrode,
wherein the absorbing structure has a structure in which a dielectric film and a metal film are alternately deposited, and the top layer is a dielectric film.

5 more elements

Dependencies are inferred from the claim text.

Micro LED Display Element

Life of this patent

Micro LED Display Element

Life of this patent

Abstract

Claims19