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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 11500199 B1

PDFFull Text
Date of Patent:
Nov. 15, 2022

Filed:

Dec. 11, 2019

Light path control member and electronic device including the same

Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventors:

Youngki Song, Paju-si, KR;

Chiyong Kim, Paju-si, KR;

Assignee:

LG DISPLAY CO., LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Ida M Soward

Int. Cl.
CPC ...
H01L 25/16 (2006.01); H01L 25/18 (2006.01); H01L 27/14 (2006.01); H01L 27/32 (2006.01); H01L 51/00 (2006.01); H01L 51/52 (2006.01); G02B 27/00 (2006.01); G02B 5/04 (2006.01); G02B 26/08 (2006.01); G09F 9/30 (2006.01); G09F 9/33 (2006.01); G02F 1/133 (2006.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01); G02F 1/1335 (2006.01); G02F 1/1333 (2006.01); H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0025 (2013.01); G06F 3/0412 (2013.01); H01L 25/167 (2013.01); H01L 25/18 (2013.01); H01L 51/0097 (2013.01); H01L 51/5275 (2013.01); G02F 1/133331 (2021.01); G02F 1/133528 (2013.01); G06F 3/0445 (2019.05); G06F 2203/04102 (2013.01); G09G 2300/0408 (2013.01); G09G 2300/0804 (2013.01); G09G 2330/04 (2013.01); G09G 2330/045 (2013.01); H01L 27/14678 (2013.01); H01L 27/323 (2013.01); H01L 27/3244 (2013.01); H01L 51/529 (2013.01); H01L 51/5246 (2013.01); H01L 51/5253 (2013.01); H01L 2251/5338 (2013.01);
Abstract

A light path control device and an electronic device including the light path control device, which reduce color shift at a side viewing angle, are provided. The light path control device can include a light path control layer including first, second and third light control layers, and a transparent base member coupled to the first light control layer or the third light control layer. The third light control layer can have a refractive index which is lower than a refractive index of the second light control layer. The light path control layer can include a first refractive surface disposed between the first light control layer and the third light control layer, and a second refractive surface and a third refractive surface disposed between the second light control layer and the third light control layer.

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