公开(公告)号：US20190182509A1

公开(公告)日：2019-06-13

申请号：US16216061

申请日：2018-12-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： YOONGU KIM ,  Sukjin Park ,  Kwan-Young Oh ,  Wonhee Lee ,  Sangsu Han

IPC: H04N19/80 ,  H04N19/176 ,  H04N19/12 ,  G09G5/02

Abstract: A display apparatus includes a first compensation part that corrects image data using an LUT that stores correction data corresponding to the image data, where grayscale differences between low-grayscale correction data and low-grayscale image data are greater than grayscale differences between middle-grayscale correction data and middle-grayscale image data, and a low-grayscale filter that transforms grayscale values of low-grayscale image data into predetermined low-grayscale values when grayscale values of the low-grayscale image data are less than or equal to a threshold low-grayscale value.

公开(公告)号：US10163409B2

公开(公告)日：2018-12-25

申请号：US15090447

申请日：2016-04-04

Applicant: Samsung Display Co., Ltd.

Inventor： Kyoungwon Lee ,  Kwan-young Oh ,  Junghwan Cho ,  Sangsu Han

IPC: G09G3/36

Abstract: A display device includes a display panel including a plurality of pixels respectively connected to a plurality of gate lines and to a plurality of data lines, a gate driving circuit configured to drive the plurality of gate lines, a data driving circuit configured to drive the plurality of data lines, a timing controller configured to provide a data signal to the data driving circuit, configured to control the gate driving circuit, and configured to output a voltage control signal, and a voltage generator configured to generate a plurality of reference voltages in response to the voltage control signal, wherein the data driving circuit is further configured to convert the data signal into a grayscale voltage based on the plurality of reference voltages, wherein a voltage level of each of the reference voltages is changed periodically within a range.