Circuit panel and flat-panel display device
AssigneeKabushiki Kaisha Toshiba
InventorsKotaro Ando, Yoshiro Aoki
Life of this patent
Estimating the term…
Abstract
A circuit panel includes an array substrate in which a scanning line is formed as a capacitive load and first and second scanning line drivers connected to the scanning line in order to commonly drive the scanning line. Each of the first and second scanning line drivers includes first and second switching circuits connected in series between first and second power terminals to selectively output one of the potentials of the first and second power source terminals as a control signal, and an output buffer for setting the potential of the scanning line in accordance with the control signal. The driving abilities of the first and second switching circuits are uneven.
Claims19
A circuit panel comprising:
- a signal wiring formed on an insulating substrate;
- and
- an output circuit disposed at an end of said signal wiring, for supplying one of first and second voltages to said signal wiring according to an external voltage and a timing signal;
- wherein the output circuit includes a plurality of circuit elements whose driving abilities are uneven, to output the first voltage upon receipt of the external voltage.
A flat-panel display device comprising:
- first and second substrates;
- and
- an optical modulation layer held between said substrates;
- wherein the first substrate includes first signal wirings, second signal wirings almost perpendicularly intersecting said first signal wirings, pixel transistors disposed near intersections of said first and second signal wirings, pixel electrodes electrically connected to said pixel transistors, and a drive circuit having output circuits disposed on one end of at least one of said first and second signal wirings, each for outputting one of first and second voltages to a corresponding signal wiring according to an external voltage and a timing signal;
- and
- wherein each output circuit has a plurality of circuit elements whose driving abilities are uneven to output the first voltage upon receipt of the external voltage.
A circuit panel comprising:
- a signal wiring formed on an insulating substrate;
- and
- an output circuit disposed at an end of the signal wiring, for outputting one of first and second voltages to said signal wiring according to an external voltage and a timing signal;
- wherein said output circuit has a plurality of circuit elements whose resistances differ from each other to output the first voltage upon receipt of the external voltage.
A circuit panel comprising:
- a signal wiring formed on an insulating substrate;
- and
- an output circuit disposed at an end of the signal wiring, for determining an output voltage to be supplied to said signal wiring, according to an external voltage and a timing signal;
- wherein said output circuit has a plurality of circuit elements whose driving abilities are uneven to output the output voltage to said signal wiring.
Dependencies are inferred from the claim text.