US 2019/0164945 A1 · LIGHT EMITTING DIODE FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME

Abstract

A light emitting diode stack for a display includes a support substrate, a first LED stack, a second LED stack, and a third LED stack, a conductive growth substrate coupled to the second LED stack or the third LED stack, a first color filter interposed between the first and second LED stacks and transmitting light generated from the first LED stack while reflecting light generated from the second LED stack, and a second color filter interposed between the second and third LED stacks and transmitting light generated from the first and second LED stacks while reflecting light generated from the third LED stack, in which light generated from the first LED stack is emitted outside through the second LED stack, the third LED stack, and the conductive growth substrate, and light generated from the second LED stack is emitted outside through the third LED stack and the conductive growth substrate.

Claims20

Dependent claims

A light emitting diode pixel for a display, comprising:

a first LED stack;
a second LED stack disposed in some region on the first LED stack;
a third LED stack disposed in some region on the second LED stack;
and
a reflective electrode disposed at a lower side of the first LED stack,
wherein each of the first to third LED stacks comprises an n-type semiconductor layer and a p-type semiconductor layer,
all of the n-type semiconductor layers of the first to third LED stacks are electrically connected to the reflective electrode, and
the first LED stack, the second LED stack and the third LED stack are independently driven.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/200,036Filed 26 Nov 2018

Priority

27 Nov 2017

Published

30 May 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

H10W 90/00
Package configurations
H10H 20/018
Of bodies, e.g. forming semiconductor layers: bonding of wafers
H10H 20/835
Characterised by their material: reflective materials
H10H 20/851
Packages: wavelength conversion means

Family

Application62/590,830Us provisional application · filed 27 Nov 2017

Application62/595,415Us provisional application · filed 6 Dec 2017

Application62/597,614Us provisional application · filed 12 Dec 2017

Application62/598,223Us provisional application · filed 13 Dec 2017

Application62/621,492Us provisional application · filed 24 Jan 2018

Application62/624,639Us provisional application · filed 31 Jan 2018

Application62/624,667Us provisional application · filed 31 Jan 2018

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US 2019/0164945 A1This patent

From the US filing history. Foreign family members aren’t listed.

Light emitting diode for display and display apparatus having the same

Life of this patent

Light emitting diode for display and display apparatus having the same

Life of this patent

Abstract

Claims20