Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2006-09-05
2006-09-05
Hu, Shouxiang (Department: 2811)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S040000, C257S059000, C257S072000, C257S103000
Reexamination Certificate
active
07102202
ABSTRACT:
A display unit has an organic light emitting diode (OLED)21provided in correspondence with each of pixels and capable of emitting light by itself, a drive transistor22for driving the OLED21, a twig transistor23which is formed so as to have a portion of an electrode of the drive transistor22independently formed, and which is used to detect a threshold voltage (Vth) of the drive transistor22,a compensating capacitor28in which the threshold voltage (Vth) detected by the twig transistor23is written, a signal capacitor27in which a signal voltage to be supplied to the drive transistor22is written, a first transistor24provided between a data line and the signal capacitor27,a second transistor25provided between the signal capacitor27and the compensating capacitor28,and a third transistor26provided between a gate electrode and another electrode of the twig transistor23.
REFERENCES:
patent: 4680484 (1987-07-01), Saunders
patent: 4745307 (1988-05-01), Kitamura et al.
patent: 5117127 (1992-05-01), Gobbi et al.
patent: 2002-541320 (2002-05-01), None
patent: WO 01/006484 (2001-01-01), None
Kobayashi Yoshinao
Ono Shinya
Tsujimura Takatoshi
Hu Shouxiang
International Business Machines - Corporation
Nelson, Esq. Eustus D.
Scully , Scott, Murphy & Presser, P.C.
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