Active solid-state devices (e.g. – transistors – solid-state diode – Non-single crystal – or recrystallized – semiconductor... – Field effect device in non-single crystal – or...
Reexamination Certificate
2011-07-19
2011-07-19
Tran, Thuy Vinh (Department: 2821)
Active solid-state devices (e.g., transistors, solid-state diode
Non-single crystal, or recrystallized, semiconductor...
Field effect device in non-single crystal, or...
C313S506000, C315S169300
Reexamination Certificate
active
07982222
ABSTRACT:
An EL display device capable of producing a vivid multi-gradation color display, and an electronic device having the EL display device. An electric current supplied to an EL element is controlled by providing a resistor between a current control TFT and the EL element formed in a pixel, the resistor having a resistance higher than the on-resistance of the current control TFT. The gradation display is executed by a time-division drive system which controls the emission and non-emission of light of the EL element by time, preventing the effect caused by a dispersion in the characteristics of the current control TFT.
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Office Action (Application No. 200810091988.1) Dated Jun. 12, 2009.
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
Semiconductor Energy Laboratory Co,. Ltd.
Tran Thuy Vinh
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