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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 10109816 B1

PDFFull Text
Date of Patent:
Oct. 23, 2018

Filed:

Feb. 23, 2017

Protective sheet, display unit, and electronic apparatus

Applicant:

Joled Inc., Tokyo, JP;

Inventors:

Takahiro Seki, Tokyo, JP;

Michitoshi Tsuchiya, Tokyo, JP;

Makoto Noda, Tokyo, JP;

Assignee:

JOLED Inc., Tokyo, JP;

Attorney:

Michael Best & Friedrich LLP

Primary Examiner:

David Spalla

Int. Cl.
CPC ...
H01L 51/52 (2006.01); H01L 51/00 (2006.01); G02F 1/1333 (2006.01); H04M 1/03 (2006.01); H04M 1/18 (2006.01); G02F 1/1335 (2006.01); H01L 27/32 (2006.01); H04M 1/02 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5253 (2013.01); G02F 1/133305 (2013.01); G02F 1/133345 (2013.01); H01L 51/0097 (2013.01); H04M 1/03 (2013.01); H04M 1/185 (2013.01); G02F 1/13338 (2013.01); G02F 1/133528 (2013.01); G02F 2001/133331 (2013.01); G02F 2201/50 (2013.01); G02F 2201/503 (2013.01); G02F 2413/02 (2013.01); G02F 2413/03 (2013.01); H01L 27/323 (2013.01); H01L 27/3244 (2013.01); H01L 51/5281 (2013.01); H01L 2251/5338 (2013.01); H04M 1/0266 (2013.01);
Abstract

A display unit includes a display panel and a first protective sheet. The display panel has a light-emitting surface. The first protective sheet is provided on the light-emitting surface. The first protective sheet provided in the display unit includes a first impact dispersion layer, a first strain relaxation layer, and a gel-like first impact absorption layer. The first impact dispersion layer has a pencil hardness of 3H or higher. The first strain relaxation layer has flexural strength and tensile strength both higher than the flexural strength and the tensile strength of the first impact dispersion layer. The gel-like first impact absorption layer has a thickness of a submillimeter order or more. The first impact absorption layer, the first strain relaxation layer, and the first impact dispersion layer are arranged in this order from the light-emitting surface.

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