Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-05-15
2007-05-15
Schechter, Andrew (Department: 2871)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C313S504000, C315S169300
Reexamination Certificate
active
10844401
ABSTRACT:
A light emitting device capable of suppressing drop in luminance or luminance unevenness of a light emitting element due to deterioration of an electro luminescent material and capable of switching an image direction vertically to horizontally without a frame memory additionally provided. The light emitting device of the invention comprises in each pixel first to fourth transistors, a light emitting element, and a signal line. The first transistor and the second transistor control the connection between the signal line and a gate of the third transistor, the fourth transistor controls a current value supplied to the light emitting element, and the third transistor selects whether the current is supplied to the light emitting element or not. Further, the first transistor and the second transistor are switched separately.
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Anzai Aya
Koyama Jun
Osame Mitsuaki
Yamazaki Yu
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
Schechter Andrew
Semiconductor Energy Laboratory Co,. Ltd.
Vu Phu
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