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:
Jul. 15, 2014

Filed:

Dec. 14, 2012
Applicants:

Takashi Osako, Kyoto, JP;

Yuji Tanaka, Osaka, JP;

Inventors:

Takashi Osako, Kyoto, JP;

Yuji Tanaka, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 1/00 (2006.01); H05K 1/18 (2006.01); H05K 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A flexible display device comprises a device substrate and a flexible circuit substrate, and achieves high reliability of electrical connection. The device substrate includes a flexible substrate, a display unit and a first terminal part. The flexible circuit substrate includes a second terminal part. An ACF including conductive particles connects the first and second terminal parts. Each conductive particle consists of a core part covered by a metal layer. An electrode layer and a cushioning layer are provided between the flexible substrate and the first terminal part. A quotient of a sum of a product of average particle diameter and elastic modulus for the core part, and a product of double average thickness and elastic modulus for the metal layer, divided by a sum of products of average thickness and elastic modulus for the first terminal part, the cushioning layer and the electrode layer, is no greater than 1.5.


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