Title:
DISPLAY DEVICE HAVING CONFIGURATION FOR CONSTANT CURRENT SETTING AND DRIVING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/071826
Kind Code:
A1
Abstract:
Provided is a display device comprising a plurality of pixel circuits, each of the plurality of pixel circuits comprising: a light-emitting diode; a PWM control unit for controlling whether a current is supplied to the light-emitting diode; and a constant current control unit for supplying the current to the light-emitting diode, wherein the constant current control unit, the PWM control unit, and the light-emitting diode are connected in series between a first power line and a second power line to supply the current to the light-emitting diode, and a transistor for turning off the light-emitting diode in a period during which a constant current is set is provided between the first power line and the constant current control unit.
Inventors:
YAMASHITA JUNICHI (JP)
KAWAE DAISUKE (JP)
YAMASHITA SHINJI (JP)
KAWAE DAISUKE (JP)
YAMASHITA SHINJI (JP)
Application Number:
PCT/KR2019/012981
Publication Date:
April 09, 2020
Filing Date:
October 02, 2019
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
G09G3/3233; G09G3/20
Foreign References:
| JP2013104910A | 2013-05-30 | |||
| JP2013076811A | 2013-04-25 | |||
| KR20140071236A | 2014-06-11 | |||
| KR20090055473A | 2009-06-02 | |||
| US20180182279A1 | 2018-06-28 | |||
| JP2014109703A | 2014-06-12 |
Other References:
See also references of EP 3863006A4
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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