Pulse output circuit, shift register, and display device

Details Pulse output circuit, shift register, and display device Pulse output circuit, shift register, and display device

2011-04-26

2011-04-26

Osorio, Ricardo L (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S042000

Reexamination Certificate

active

07932888

ABSTRACT:
An object is to suppress change of a threshold voltage of a transistor in a shift register and to prevent the transistor from malfunctioning during a non-selection period. A pulse output circuit provided in the shift register regularly supplies a potential to a gate electrode of a transistor which is in a floating state so that the gate electrode is turned on during a non-selection period when a pulse is not outputted. In addition, supply of a potential to the gate electrode of the transistor is performed by turning on or off another transistor regularly.

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