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. 23, 2015

Filed:

Nov. 29, 2012
Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Bumgi Min, Seoul, KR;

Kyoungmok Kim, Seoul, KR;

Junho Ko, Seoul, KR;

Junseok Tak, Seoul, KR;

Seongrae Cho, Seoul, KR;

Assignee:

LG ELECTRONICS INC., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09F 13/04 (2006.01); G02F 1/1333 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G09F 13/04 (2013.01); G02F 1/133308 (2013.01); G02F 1/133504 (2013.01);
Abstract

A display device includes a display panel including a front substrate and a back substrate, a back cover positioned in the rear of the display panel, and a backlight unit positioned between the display panel and the back cover. The backlight unit includes a plurality of optical sheets. At least first optical sheet of the plurality of optical sheets includes an opening. At least second optical sheet of the other optical sheets except the first optical sheet among the plurality of optical sheets includes a protrusion corresponding to the opening of the first optical sheet.


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