Invention Grant
- Patent Title: Display device
- Patent Title (中): 显示设备
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Application No.: US13989492Application Date: 2011-10-05
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Publication No.: US08947418B2Publication Date: 2015-02-03
- Inventor: Fumiki Nakano , Naoki Ueda , Yoshimitsu Yamauchi
- Applicant: Fumiki Nakano , Naoki Ueda , Yoshimitsu Yamauchi
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Keating & Bennett, LLP
- Priority: JP2010-262534 20101125
- International Application: PCT/JP2011/072920 WO 20111005
- International Announcement: WO2012/070316 WO 20120531
- Main IPC: G09G5/00
- IPC: G09G5/00 ; G09G3/36

Abstract:
A display device in which low power consumption is realized without lowering an aperture ratio is provided. A liquid crystal capacitive element Clc is sandwiched between a pixel electrode 20 and an opposite electrode 80. The pixel electrode 20, one end of a first switch circuit 22, one end of a second switch circuit 23 and a first terminal of a second transistor T2 form an internal node N1. The other terminals of the first switch circuit 22 and the second switch circuit 23 are connected to a source line SL. The second switch circuit 23 is a series circuit composed of a first transistor T1 and a diode D1. A control terminal of the first transistor T1, a second terminal of the second transistor T2 and one end of a boost capacitive element Cbst form an output node N2. The other end of the boost capacitive element Cbst and the control terminal of the second transistor T2 are connected to a boost line BST and a reference line REF, respectively. The diode D1 has a rectifying function from the source line SL to the internal node N1.
Public/Granted literature
- US20130286001A1 DISPLAY DEVICE Public/Granted day:2013-10-31
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