Invention Grant
- Patent Title: Display device
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Application No.: US15333377Application Date: 2016-10-25
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Publication No.: US09941306B2Publication Date: 2018-04-10
- Inventor: Koji Yamamoto , Tatsuya Ishii
- Applicant: Japan Display Inc.
- Applicant Address: JP Tokyo
- Assignee: Japan Display Inc.
- Current Assignee: Japan Display Inc.
- Current Assignee Address: JP Tokyo
- Agency: Typha IP LLC
- Priority: JP2015-237251 20151204
- Main IPC: G09G5/00
- IPC: G09G5/00 ; H01L27/12 ; G09G3/3266 ; G09G3/36 ; H01L27/02 ; H01L29/786

Abstract:
To make the dimension of an electrostatic protection circuit small with the same maintained high in sensitivity. The electrostatic protection circuit is of the configuration that a first diode and a second diode are connected in series, wherein a semiconductor layer owned by each diode is configured to be sandwiched between a gate electrode and a conductive light shielding film. The light shielding film is formed to overlap with the semiconductor layer and has a wider area than the semiconductor layer. This results in having a gate covering the semiconductor layer from an upper side and a back gate covering the semiconductor layer from a lower side, so that the sensitivity can be maintained high irrespective of decreasing the electrostatic protection circuit in dimension.
Public/Granted literature
- US20170162605A1 DISPLAY DEVICE Public/Granted day:2017-06-08
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