Title:
半導体装置
Document Type and Number:
Japanese Patent JP6433534
Kind Code:
B2
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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Inventors:
Hiroyuki Miyake
Application Number:
JP2017090958A
Publication Date:
December 05, 2018
Filing Date:
May 01, 2017
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
G09G3/20; G09G3/3225; G11C19/28
Domestic Patent References:
| JP2005181969A |
Foreign References:
| US20060145999 |