Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2005-06-29
2009-06-30
Santiago, Mariceli (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S500000, C313S504000, C313S505000, C349S139000, C349S142000
Reexamination Certificate
active
07554260
ABSTRACT:
It is an object of the present invention to prevent a bright pixel defect caused by continuous current flow into a pixel, or to provide a display device in which effects on the surrounding pixels due to concentration of current on a part of the pixel can be suppressed. A display device according to the invention has a wiring for supplying current provided over an insulating surface, and a pixel electrode connected to the wiring. The pixel electrode has a layered structure of a plurality of different conductive films. Further, the pixel electrode has a narrow width region at least in a region where the wiring and the pixel electrode are electrically connected to each other. For example, a layered structure of a metal film and a transparent electrode can be used as a plurality of different conductive films.
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Kimura.M et al., “Analysis, Detection and Repair of Pixel Shorts in PM-OLEDs,”, Asia Display / IDW '05, 2005, pp. 605-608.
Sakakura Masayuki
Yamazaki Shunpei
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
Santiago Mariceli
Semiconductor Energy Laboratory Co,. Ltd.
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