Title:
DISPLAY DEVICE AND METHOD FOR DRIVING DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/058463
Kind Code:
A1
Abstract:
A display device according to one embodiment of the present invention is provided with a plurality of pixels which are arranged as a matrix on a substrate, and each of which is provided with a liquid crystal display element and an organic EL display element. The organic EL display element is provided with a positive electrode and a negative electrode, which are formed so as to be electrically separated from a pixel electrode and a counter electrode of the liquid crystal display element. Each one of the plurality of pixels is provided with: a first transistor which changes the magnitude of a current to be supplied to the organic EL display element on the basis of the potential of a first bus line; a second transistor which electrically separates the first bus line and the pixel electrode from each other on the basis of the potential of a third bus line; and a third transistor which electrically connects the first transistor and the second transistor with the first bus line on the basis of the potential of a second bus line. A method for driving a display device according to one embodiment of the present invention reduces the potential difference between the pixel electrode and the counter electrode before turning off the second transistor during switching from display by means of the liquid crystal display element to display by means of the organic EL display element.
Inventors:
MITANI MASAHIRO (JP)
NAKAMURA KOHZOH (JP)
MINOURA KIYOSHI (JP)
TSUCHIYA HIROSHI (JP)
NARUTAKI YOZO (JP)
NAKAMURA KOHZOH (JP)
MINOURA KIYOSHI (JP)
TSUCHIYA HIROSHI (JP)
NARUTAKI YOZO (JP)
Application Number:
PCT/JP2017/033926
Publication Date:
March 28, 2019
Filing Date:
September 20, 2017
Export Citation:
Assignee:
SHARP KK (JP)
SAKAI DISPLAY PRODUCTS CORP (JP)
SAKAI DISPLAY PRODUCTS CORP (JP)
International Classes:
G09G3/20; G09F9/30; G09G3/3233; G09G3/36
Domestic Patent References:
| WO2011013409A1 | 2011-02-03 |
Foreign References:
| US20160267827A1 | 2016-09-15 | |||
| JP2003316295A | 2003-11-07 | |||
| JP2013117725A | 2013-06-13 | |||
| JP2003322850A | 2003-11-14 | |||
| JPH07271323A | 1995-10-20 | |||
| JP2011523080A | 2011-08-04 |
Attorney, Agent or Firm:
ASAHINA & CO. (JP)
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