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:
Apr. 05, 2016

Filed:

Mar. 11, 2013
Applicant:

Gsi Group Corporation, Bedford, MA (US);

Inventor:

James J. Cordingley, Littleton, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13 (2006.01); G01N 21/95 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G01N 21/95 (2013.01); G02F 1/1309 (2013.01); G02F 1/133514 (2013.01); G02F 2201/508 (2013.01);
Abstract

A system is disclosed for repairing liquid crystal display panels that include a polarizing film. The system includes a laser repair optical system, a measurement optical system, and a processor. The laser repair optical system includes a polarization unit for modifying a polarization of a laser repair beam along a laser output path that is directed toward a workpiece. The measurement optical system includes an illumination source for providing measurement illumination along a measurement illumination path, and a detector for detecting reflected measurement illumination. The processor adjusts the polarization unit responsive to the reflected measurement illumination.


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