Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-04-12
2005-04-12
Shalwala, Bipin (Department: 2673)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S076000, C345S077000, C345S092000, C315S169100, C315S169200, C343S823000, C343S823000, C343S823000
Reexamination Certificate
active
06879309
ABSTRACT:
An EL display having high operating performance and reliability is provided. LDD regions15athrough15dof a switching TFT201formed in a pixel are formed such that they do not overlap gate electrodes19aand19bto provide a structure which is primarily intended for the reduction of an off-current. An LDD region22of a current control TFT202is formed such that it partially overlaps a gate electrode35to provide a structure which is primarily intended for the prevention of hot carrier injection and the reduction of an off-current. Appropriate TFT structures are thus provided depending on required functions to improve operational performance and reliability.
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Fukunaga Takeshi
Yamauchi Yukio
Costellia Jeffrey L.
Kovalick Vincent E.
Semiconductor Energy Laboratory Co,. Ltd.
Shalwala Bipin
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