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.:
Date of Patent:
Oct. 20, 2020
Filed:
Apr. 30, 2018
Applicant:
Dongwoo Fine-chem Co., Ltd., Jeollabuk-do, KR;
Inventors:
Assignee:
DONGWOO FINE-CHEM CO., LTD., Jeollabuk-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/047 (2006.01); G06F 3/044 (2006.01);
U.S. Cl.
CPC ...
G06F 3/047 (2013.01); G06F 3/044 (2013.01); G06F 2203/04102 (2013.01); G06F 2203/04103 (2013.01);
Abstract
A film touch sensor includes a base film, an adhesive layer, a separation layer and a conductive pattern layer, which are sequentially laminated. The base film has a retardation value Ro in a plane direction of 0 to 10 nm, and a retardation value Rth in a thickness direction of −10 to 10 nm. When the film touch sensor is applied to a final product, interference between laminates may be minimized to significantly reduce a change in color sense of an image.