Flip-flop circuit, shift register and scan driving circuit...

Details Flip-flop circuit, shift register and scan driving circuit... Flip-flop circuit, shift register and scan driving circuit...

2005-07-19

2005-07-19

Wu, Xiao (Department: 2674)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S204000, C326S046000, C327S202000

Reexamination Certificate

active

06919875

ABSTRACT:
In the present invention, an input terminal of a flip-flop circuit in master slave form which is formed by connecting two inverters in a loop shape is connected to a first terminal via a first switch circuit, an output terminal of the flip-flop circuit is connected to a second terminal via a second switch circuit, a third switch circuit is provided between the path from the first switch circuit to the input terminal and the second terminal, a fourth switch circuit is provided between the path from the output terminal to the second switch circuit and the first terminal, and through turning ON the first and second switch circuits and turning OFF the third and fourth switch circuits the first terminal is rendered operable as an input terminal and the second terminal is rendered operable as an output terminal, and through turning OFF the first and second switch circuits and turning ON the third and fourth switch circuits the second terminal is rendered operable as an input terminal and the first terminal is rendered operable as an output terminal.

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patent: 6-54860 (1994-07-01), None

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