06191764 is referenced by 74 patents and cites 7 patents.

A phototransistor having a non-linear light vs. conductivity characteristics and an organic electroluminescent layer are sandwiched by a pair of electrodes, a predetermined voltage is applied to the pair of electrodes, and address light is irradiated on a phototransistor to let a current flow in the phototransistor, thus causing the electroluminescent layer to emit light. It is therefore possible to drive the device to present crosstalk-free gradation display with a high contrast ratio.

Title
Method of driving display device
Application Number
9/56184
Publication Number
6191764 (B1)
Application Date
April 6, 1998
Publication Date
February 20, 2001
Inventor
Hiroyasu Yamada
Hachioji
US
Masaharu Shioya
Akiruno
US
Ichiro Kono
Fussa
US
Agent
Frishauf Holtz Goodman Langer & Chick P C
US
Assignee
Casio Computer
US
IPC
G09G 3/10
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