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 9224957 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 29, 2015

Filed:

Apr. 08, 2015
Applicant:

Everdisplay Optronics (Shanghai) Limited, Shanghai, CN;

Inventors:

ChiaPin Kang, Shanghai, CN;

Chin Chih Lin, Shanghai, CN;

Chunchieh Huang, Shanghai, CN;

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H01L 51/56 (2006.01); H01L 27/32 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0031 (2013.01); H01L 27/3211 (2013.01); H01L 27/3223 (2013.01); H01L 51/56 (2013.01);
Abstract

The present disclosure provides a method for measuring an offset of a sub-pixel in an OLED manufacturing process, including: depositing OLED material onto a display unit in a substrate through a hollow portion of a mask, the display unit including an effective region and a peripheral measuring region at periphery of the effective region, the OLED material forming a plurality of effective sub-pixels within the effective region and forming a plurality of dummy sub-pixels within the peripheral measuring region; and using UV light to excite at least a portion of the dummy sub-pixels of the OLED material to emit light, and measuring the offset of the dummy sub-pixel with respect to a predetermined position of a corresponding light emitting unit located on the substrate.


Find Patent Forward Citations

Kang, ChiaPin. (2015). Method for measuring offset of sub-pixel in oled manufacturing process (U.S. Patent No. 9224957). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9224957

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