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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12255190 B1

PDFFull Text
Date of Patent:
Mar. 18, 2025

Filed:

Feb. 08, 2024

Light emitting device with led stack for display and display apparatus having the same

Applicant:

Seoul Viosys Co., Ltd., Ansan-si, KR;

Inventors:

Seong Gyu Jang, Ansan-si, KR;

Ho Joon Lee, Ansan-si, KR;

Jong Hyeon Chae, Ansan-si, KR;

Chung Hoon Lee, Ansan-si, KR;

Assignee:

SEOUL VIOSYS CO., LTD., Ansan-si, KR;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Shahed Ahmed

Int. Cl.
CPC ...
H01L 33/20 (2010.01); H01L 25/075 (2006.01); H01L 25/13 (2006.01); H01L 33/38 (2010.01); H01L 33/40 (2010.01); H01L 33/50 (2010.01); H01L 33/00 (2010.01); H01L 33/62 (2010.01);
U.S. Cl.
CPC ...
H01L 25/13 (2013.01); H01L 25/0756 (2013.01); H01L 33/38 (2013.01); H01L 33/405 (2013.01); H01L 33/505 (2013.01); H01L 33/0093 (2020.05); H01L 33/20 (2013.01); H01L 33/62 (2013.01);
Abstract

A light emitting diode pixel for a display includes a first subpixel including a first LED sub-unit, a second subpixel including a second LED sub-unit, a third subpixel including a third LED sub-unit, and a bonding layer overlapping the first, second, and third subpixels, in which each of the first, second, and third LED sub-units includes a first type of semiconductor layer and a second type of semiconductor layer, each of the first, second, and third LED sub-units is disposed on a different plane, and light generated from the second subpixel is configured to be emitted to an outside of the light emitting diode pixel by passing through a lesser number of LED sub-units than light generated from the first subpixel and emitted to the outside.

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