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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 10264632 B1

PDFFull Text
Date of Patent:
Apr. 16, 2019

Filed:

Sep. 29, 2016

Backlight module with mjt led and backlight unit including the same

Applicant:

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

Inventors:

Young Jun Song, Ansan-si, KR;

Hyuck Jung Choi, Ansan-si, KR;

Il Kyung Suh, Ansan-si, KR;

Assignee:

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

Attorney:

H.C. Park & Associates, PLC

Primary Examiner:

Haissa Philogene

Int. Cl.
CPC ...
H05B 33/08 (2006.01); H01L 33/62 (2010.01); H01L 27/15 (2006.01); H01L 33/58 (2010.01); G02F 1/1335 (2006.01); H01L 25/075 (2006.01); H01L 33/00 (2010.01); H01L 33/06 (2010.01); H01L 33/12 (2010.01); H01L 33/32 (2010.01); H01L 33/42 (2010.01); H01L 33/46 (2010.01); H01L 33/50 (2010.01); H01L 33/56 (2010.01); H01L 33/38 (2010.01); H01L 33/14 (2010.01); H01L 33/20 (2010.01);
U.S. Cl.
CPC ...
H05B 33/0815 (2013.01); G02F 1/133603 (2013.01); G02F 1/133606 (2013.01); H01L 25/0753 (2013.01); H01L 27/156 (2013.01); H01L 33/007 (2013.01); H01L 33/06 (2013.01); H01L 33/12 (2013.01); H01L 33/145 (2013.01); H01L 33/32 (2013.01); H01L 33/385 (2013.01); H01L 33/42 (2013.01); H01L 33/46 (2013.01); H01L 33/502 (2013.01); H01L 33/56 (2013.01); H01L 33/58 (2013.01); H01L 33/62 (2013.01); H05B 33/086 (2013.01); H05B 33/0827 (2013.01); H05B 33/0845 (2013.01); G02F 2001/133612 (2013.01); H01L 33/20 (2013.01); H01L 2933/005 (2013.01); H01L 2933/0016 (2013.01); H01L 2933/0025 (2013.01); H01L 2933/0041 (2013.01); H01L 2933/0066 (2013.01);
Abstract

A direct type backlight unit disposed under a liquid crystal panel includes a backlight module including a printed circuit board including blocks arranged in an M×N matrix, in which M and N are natural numbers of 2 or greater, light emitting devices disposed on the printed circuit board such that at least one light emitting device is disposed in each block, each of the light emitting devices including light emitting cells disposed on a single substrate, and optical members disposed on the light emitting devices, each of the optical members being configured to change a light beam distribution of a corresponding light emitting device, and a backlight control module configured to control dimming levels of the light emitting devices and to independently control the light emitting devices disposed in different blocks.

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