公开(公告)号：US10319310B2

公开(公告)日：2019-06-11

申请号：US15242454

申请日：2016-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Jung-taek Kim ,  Kyoungwon Lee ,  Joon-chul Goh ,  Youngwoo Choi

IPC: G09G5/10 ,  G09G3/34

Abstract: A display device includes: a display panel including first group pixels connected to a first gate line to receive first data voltages, and second group pixels connected to the first gate line to receive second data voltages; a backlight source to provide light to the display panel; a signal controller to divide horizontal image signals into first group image signals and second group image signals, to extract a first maximum grayscale image signal from the first group image signals, and to extract a second maximum grayscale image signal from the second group image signals; a power supply to generate first and second gamma driving voltages from a reference gamma driving voltage based on a grayscale level of the first maximum grayscale image signal and a grayscale level of the second maximum grayscale image signal.

公开(公告)号：US20170124985A1

公开(公告)日：2017-05-04

申请号：US15242454

申请日：2016-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Jung-taek Kim ,  Kyoungwon Lee ,  Joon-chul Goh ,  Youngwoo Choi

IPC: G09G5/10

CPC classification number: G09G3/342 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0276 ,  G09G2320/0646 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2360/16

Abstract: A display device includes: a display panel including first group pixels connected to a first gate line to receive first data voltages, and second group pixels connected to the first gate line to receive second data voltages; a backlight source to provide light to the display panel; a signal controller to divide horizontal image signals into first group image signals and second group image signals, to extract a first maximum grayscale image signal from the first group image signals, and to extract a second maximum grayscale image signal from the second group image signals; a power supply to generate first and second gamma driving voltages from a reference gamma driving voltage based on a grayscale level of the first maximum grayscale image signal and a grayscale level of the second maximum grayscale image signal.