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Patent Searching and Data


Title:
SHIFT REGISTER CIRCUIT AND DISPLAY PANEL
Document Type and Number:
WIPO Patent Application WO/2018/016178
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a shift register circuit and a display panel that appropriately control the back-gate voltage of a transistor using a simple configuration at low cost. Each of a plurality of shift register SR in a shift register circuit 1 includes an output circuit 100, a charge-discharge circuit 200, a first power supply terminal S2 for supplying the charge-discharge circuit 200 with a constant voltage, and at least one back-gate voltage generation circuit 300. The output circuit 100 or the charge-discharge circuit 200 includes at least one transistor Q1 having a back-gate electrode. The back-gate voltage generation circuit 300 includes a back-gate node N2. The back-gate node N2 is connected to the back-gate electrode of the transistor Q1. The back-gate voltage generation circuit 300 changes the voltage of the back-gate node N2 in accordance with the voltage of the gate electrode of the transistor Q1, and the first power supply terminal S2 supplies the back-gate voltage generation circuit 300 with a drive voltage.

Inventors:
ONO Takeshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
AGARI Masafumi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
FUJINO Toshiaki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
KAWABUCHI Shinji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/019541
Publication Date:
January 25, 2018
Filing Date:
May 25, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
G11C19/28; G09G3/20; G09G3/36; H03K17/30
Domestic Patent References:
2014-09-18
Foreign References:
JP2006024350A2006-01-26
JP2009094927A2009-04-30
JP2000261304A2000-09-22
JPH1168548A1999-03-09
US20150269879A12015-09-24
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (10th floor, Sumitomo-seimei OBP Plaza Bldg. 4-70, Shiromi 1-chome, Chuo-ku, Osaka-sh, Osaka 01, 〒5400001, JP)
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