公开(公告)号：US20190259328A1

公开(公告)日：2019-08-22

申请号：US16169825

申请日：2018-10-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Young YOU ,  Tae Wook KIM

IPC: G09G3/3233 ,  G09G3/36 ,  G02F1/1362 ,  G09G3/3258

Abstract: A display device includes: a display panel including a plurality of pixels; a circuit board including: a power supply configured to output a reference voltage; and a signal controller; a connecting member electrically connecting the display panel and the circuit board; and a voltage modulator configured to generate a second power supply voltage of a low level with a division voltage using the reference voltage according to a switch control signal from the signal controller and to supply the second power supply voltage to the plurality of pixels.

公开(公告)号：US20170169752A1

公开(公告)日：2017-06-15

申请号：US15353769

申请日：2016-11-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Tae Wook KIM ,  Yeon Shil JUNG

IPC: G09G3/20 ,  G09G5/393

CPC classification number: G09G3/2007 ,  G09G3/2003 ,  G09G5/024 ,  G09G5/393 ,  G09G2320/0276 ,  G09G2320/0673 ,  G09G2330/028

Abstract: A device for correcting gamma set data includes a memory, voltage calculator, and a corrector. The memory stores high gamma set data including first register values set per grayscale and low gamma set data including second register values set per grayscale and reference register value. The voltage calculator calculates a reference voltage value of the low gamma set data based on the reference register value and calculates fixed voltage values per grayscale of the low gamma set data based on the second register values. The corrector compares the first register values with the second register values and corrects the second register values based on a comparison result.