公开(公告)号：US10297187B2

公开(公告)日：2019-05-21

申请号：US15073473

申请日：2016-03-17

Applicant: Samsung Display Co., LTD.

Inventor： Sung-Hoon Bang

IPC: G09G3/36 ,  G09G3/20

Abstract: A gamma voltage generator includes a reference gamma selector configured to receive a first reference voltage and a second reference voltage greater than the first reference voltage, and to select top and bottom reference gamma voltages respectively corresponding to maximum and minimum gamma tab voltages that are between the first and second reference voltages, a gamma tab generator configured to select a plurality of gamma tab voltages between the maximum and minimum gamma tab voltages based on the top and bottom reference gamma voltages, a maximum gamma compensator configured to select a compensating gamma tab voltage that is greater than the maximum gamma tab voltage based on the top reference gamma voltage and a third reference voltage greater than the second reference voltage, and a gamma output configured to divide the gamma tab voltages and the compensating gamma tab voltage, and output gamma voltages corresponding to a gamma curve.

公开(公告)号：US10388229B2

公开(公告)日：2019-08-20

申请号：US16170422

申请日：2018-10-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin-Woo Park ,  Sung-Hoon Bang

IPC: G09G5/10 ,  G09G3/3283 ,  G09G3/20 ,  G09G3/3208

Abstract: A method for controlling a display panel includes calculating an on-pixel ratio based on gamma information corresponding to image information, providing maximum current information based on a dimming level, calculating an average current of the display panel based on the on-pixel ratio and the maximum current information, and providing pixel average current information for each of a plurality of pixels in the display panel. The on-pixel ratio is based on the turned-on pixels of the pixels in the display panel. The pixel average current information is determined based on the average current of the display panel.

公开(公告)号：US10121417B2

公开(公告)日：2018-11-06

申请号：US14927744

申请日：2015-10-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin-Woo Park ,  Sung-Hoon Bang

IPC: G09G5/10 ,  G09G3/3283 ,  G09G3/20 ,  G09G3/3208

Abstract: A method for controlling a display panel includes calculating an on-pixel ratio based on gamma information corresponding to image information, providing maximum current information based on a dimming level, calculating an average current of the display panel based on the on-pixel ratio and the maximum current information, and providing pixel average current information for each of a plurality of pixels in the display panel. The on-pixel ratio is based on the turned-on pixels of the pixels in the display panel. The pixel average current information is determined based on the average current of the display panel.