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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 12539688 B1

PDFFull Text
Date of Patent:
Feb. 03, 2026

Filed:

Mar. 23, 2021

Flexible organic el display device, and front panel for display device

Applicant:

Dai Nippon Printing Co., Ltd., Tokyo, JP;

Inventors:

Jun Sato, Tokyo, JP;

Gen Furui, Tokyo, JP;

Atsuhiro Kobayashi, Tokyo, JP;

Yoshimasa Ogawa, Tokyo, JP;

Assignee:

DAI NIPPON PRINTING CO., LTD., Tokyo, JP;

Attorney:

HSML P.C.

Primary Examiner:

Victor A Mandala

Int. Cl.
CPC ...
B32B 17/10 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/36 (2006.01); H10K 59/80 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
B32B 17/10 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/308 (2013.01); B32B 27/36 (2013.01); H10K 59/871 (2023.02); H10K 59/873 (2023.02); H10K 77/111 (2023.02); B32B 2255/10 (2013.01); B32B 2307/54 (2013.01); B32B 2307/558 (2013.01); B32B 2307/7376 (2023.05); B32B 2367/00 (2013.01); B32B 2457/206 (2013.01); H10K 59/87 (2023.02); H10K 2102/311 (2023.02);
Abstract

The present disclosure provides a flexible organic electroluminescence display device comprising a front panel placed on an observer side of an organic electroluminescence display panel, wherein the front panel includes a glass substrate, with a thickness of 100 μm or less, on the organic electroluminescence display panel, and a resin layer on the glass substrate; in a plane of the resin layer, when a composite elastic modulus of a first direction is regarded as E1, a composite elastic modulus of a second direction that is a direction orthogonally crossing the first direction is regarded as E2, E1/E2 is 1.2 or more; and an angle formed by a folding direction of the flexible organic electroluminescence display device and the first direction is 45° or more and 90° or less.

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