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.

Date of Patent:
Jun. 04, 2019

Filed:

May. 08, 2018
Applicant:

Joled Inc., Tokyo, JP;

Inventor:

Masakazu Takata, Tokyo, JP;

Assignee:

JOLED, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H01L 27/32 (2006.01); H01L 51/50 (2006.01); H05B 33/14 (2006.01);
U.S. Cl.
CPC ...
H01L 27/3246 (2013.01); H01L 27/3211 (2013.01); H01L 27/3276 (2013.01); H01L 51/0003 (2013.01); H01L 51/50 (2013.01); H05B 33/145 (2013.01);
Abstract

A light emitting device includes: a base substrate; banks extending in a direction along a surface of the base substrate; and light emitting elements extending along the direction in groove regions defined by the banks. Each light emitting element includes one or more functional layers between a pair of electrodes. Within at least one of the groove regions: a sub-bank extends along the one direction and has a height equal to or smaller than a height of the banks; for each of the one or more functional layers in the groove regions, portions of each of the one or more functional layers on each side of the sub-bank are made of a same material; and a thickness of the one or more functional layers is smaller than a height of the sub-bank.


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