Title:
発光装置
Document Type and Number:
Japanese Patent JP7014919
Kind Code:
B2
Abstract:
In a light-emitting device, supply of current is controlled using a transistor having a normal gate electrode (a first gate electrode) and a second gate electrode for controlling threshold voltage. The light-emitting device comprises one or more switches for selecting conduction or non-conduction between the first gate electrode and a drain terminal of the transistor. When the threshold voltage of the transistor is acquired, the first gate electrode and the drain terminal of the transistor are brought into conduction with the switch, and the threshold voltage of the transistor is shifted by controlling the potential of the second gate electrode.
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Inventors:
Hiroyuki Miyake
Application Number:
JP2021015017A
Publication Date:
February 01, 2022
Filing Date:
February 02, 2021
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
G09F9/30; G09G3/20; G09G3/3233; H01L51/50
Domestic Patent References:
| JP2006091119A | ||||
| JP2010060816A | ||||
| JP2008134625A | ||||
| JP2006133725A | ||||
| JP2003043995A |
Foreign References:
| US20060097628 | ||||
| US20070194326 | ||||
| KR1020110069397A |
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