DISPLAY DEVICE USING SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD FOR CONTROLLING SAME

WIPO Patent Application WO/2022/097767

A1

The present invention relates to a display device using a semiconductor light-emitting element configured for active matrix (AM) driving, and the purpose of the present invention is to improve luminance non-uniformity between multiple semiconductor light-emitting elements constituting the display device. To this end, the display device using a semiconductor light-emitting element, according to an embodiment, may comprise: a unit light-emitting region including the semiconductor light-emitting element and a driving circuit connected to one end of the semiconductor light-emitting element; a row driver for providing a scan signal to the driving circuit; a column driver for providing a data signal to the driving circuit; a power supply unit which applies a first fixed voltage to the other end of the semiconductor light-emitting element, applies a second fixed voltage to the driving circuit, and forms a potential difference between semiconductor light-emitting elements in response to the scan signal and the data signal; and a voltage varying circuit for receiving a feedback signal from the unit light-emitting region and varying the first fixed voltage or the second fixed voltage in response to the feedback signal.

CHANG JAEWON (KR)
KIM SOOHYUN (KR)

PCT/KR2020/015315

May 12, 2022

November 04, 2020

Click for automatic bibliography generation  

LG ELECTRONICS INC (KR)

G09G3/32; G02F1/13357; H01L25/075

KR20160032294A	2016-03-24
KR20130022953A	2013-03-07
US20090201281A1	2009-08-13
JP2008015459A	2008-01-24
EP1998312A2	2008-12-03

KBK & ASSOCIATES (KR)

View/Download PDF      PDF Help

Previous Patent: METHOD AND DEVICE FOR RESTORING OBSCURED AREA

Next Patent: EXCREMENT PROCESSING DEVICE