Invention Grant
- Patent Title: Method of inspecting organic electroluminescence display device
- Patent Title (中): 检查有机电致发光显示装置的方法
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Application No.: US13659084Application Date: 2012-10-24
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Publication No.: US08687874B2Publication Date: 2014-04-01
- Inventor: Tomomi Hiraoka
- Applicant: Panasonic Corporation
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2010-102415 20100427
- Main IPC: G06K9/62
- IPC: G06K9/62 ; G09G3/00 ; H01L51/56

Abstract:
A method of inspecting an organic electroluminescence (EL) display device which includes pixels each of which includes an organic electroluminescence (EL) element includes: imaging the pixels for a predetermined time with a reverse bias voltage being applied to the pixels; identifying light emitting points which produce, in the imaging, light leakage that is greater than or equal to threshold intensity, the light emitting points being located within the pixels; and determining that a pixel including one light emitting point is a defective pixel when, after plural iterations of the imaging and the identifying, the light emitting point is identified in twice or more in the plural iterations of the identifying.
Public/Granted literature
- US20130044937A1 METHOD OF INSPECTING ORGANIC ELECTROLUMINESCENCE DISPLAY DEVICE Public/Granted day:2013-02-21
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