Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Patent
1998-04-20
2000-09-12
Sikes, William L.
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
349151, 438 30, G02F 11343
Patent
active
061185027
ABSTRACT:
A method of fabricating a driver circuit for use with a passive matrix or active matrix electrooptical display device such as a liquid crystal display. The driver circuit occupies less space than heretofore. A circuit (stick crystal) having a length substantially equal to the length of one side of the matrix of the display device is used as the driver circuit. The circuit is bonded to one substrate of the display device, and then the terminals of the circuit are connected with the terminals of the display device. Subsequently, the substrate of the driver circuit is removed. This makes the configuration of the circuit much simpler than the configuration of the circuit heretofore required by the TAB method or COG method, because conducting lines are not laid in a complex manner. The driver circuit can be formed on a large-area substrate such as a glass substrate. The display device can be formed on a lightweight material having a high shock resistance such as a plastic substrate. Hence, a display device having excellent portability can be obtained.
REFERENCES:
patent: 5261156 (1993-11-01), Mase et al.
patent: 5654811 (1997-08-01), Spitzer et al.
patent: 5781164 (1998-07-01), Jacobsen et al.
patent: 5786242 (1998-07-01), Takemura et al.
patent: 5821138 (1998-10-01), Yamazaki et al.
Arai Yasuyuki
Nakajima Setsuo
Takemura Yasuhiko
Yamazaki Shunpei
Parker Kenneth
Semiconductor Energy Laboratory Co,. Ltd.
Sikes William L.
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