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 9620744 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 11, 2017

Filed:

Apr. 06, 2015
Applicant:

Samsung Display Co., Ltd., Yongin, KR;

Inventors:

Jin Baek Choi, Anyang-si, KR;

Yeon Hwa Lee, Yongin, KR;

Joon Gu Lee, Seoul, KR;

Assignee:

Samsung Display Co., Ltd., Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/56 (2006.01); H01L 51/00 (2006.01); B41M 5/40 (2006.01); B41M 5/46 (2006.01); B41M 5/42 (2006.01); B41M 5/48 (2006.01);
U.S. Cl.
CPC ...
H01L 51/56 (2013.01); B41M 5/40 (2013.01); B41M 5/42 (2013.01); B41M 5/426 (2013.01); B41M 5/46 (2013.01); B41M 5/48 (2013.01); H01L 51/0013 (2013.01);
Abstract

The optical patterning mask had a protection layer on a light absorption layer. It prevents the light absorption layer from damaged by the cleaning gas when processing the used optical patterning mask for reuse. The protection layer may be made of the same material as bank layer or of material different from the bank layer. The bank layer defines the boundary of the area to be transferred in the transfer layer. The protection layer of the present invention can maintain longer the transfer efficiency of the optical patterning mask, even when the same mask is used repeatedly after cleaning, since the light absorption layer protected from cleaning process can maintain longer its heat conversion property.


Find Patent Forward Citations

Choi, Jin. (2017). Optical patterning mask and method for fabricating display device using the same (U.S. Patent No. 9620744). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9620744

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