Invention Grant
US08558765B2 Method and apparatus for uniformity and brightness correction in an electroluminescent display
有权
用于电致发光显示器中的均匀性和亮度校正的方法和装置
- Patent Title: Method and apparatus for uniformity and brightness correction in an electroluminescent display
- Patent Title (中): 用于电致发光显示器中的均匀性和亮度校正的方法和装置
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Application No.: US11765686Application Date: 2007-06-20
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Publication No.: US08558765B2Publication Date: 2013-10-15
- Inventor: Ronald S. Cok
- Applicant: Ronald S. Cok
- Applicant Address: US VA Herndon
- Assignee: Global OLED Technology LLC
- Current Assignee: Global OLED Technology LLC
- Current Assignee Address: US VA Herndon
- Agency: Global OLED Technology LLC
- Main IPC: G09G3/30
- IPC: G09G3/30

Abstract:
A method for reducing brightness uniformity variations in an active-matrix electroluminescent (EL) display employing amorphous silicon thin-film transistors, by providing an active-matrix EL display having amorphous silicon thin-film transistors; and deriving a first correction value from a measured or estimated value of light-emitting element performance. Subsequently groups of light-emitting elements are identified, whereupon one or more representative light-emitting elements are selected. Remaining steps include measuring total representative current used by the representative light-emitting elements for each predetermined group of light-emitting element; deriving an estimated second correction value from the first correction value, or the measured or estimated value of light-emitting element performance, and the measured total representative currents for each individual light-emitting elements; and employing the estimated second correction value to correct image signals for the changes in the output of the light-emitting elements and produce compensated image signals.
Public/Granted literature
- US20080055210A1 METHOD AND APPARATUS FOR UNIFORMITY AND BRIGHTNESS CORRECTION IN AN ELECTROLUMINESCENT DISPLAY Public/Granted day:2008-03-06
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