公开(公告)号：US11699380B2

公开(公告)日：2023-07-11

申请号：US17891861

申请日：2022-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Heesook Park ,  Kihyun Pyun

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G2310/027 ,  G09G2310/0232 ,  G09G2310/0267 ,  G09G2310/08 ,  G09G2320/046

Abstract: An embodiment of a display apparatus includes a display panel, a driving controller, and a data driver. In operation the driving controller determines a gain reducing area based on an edge load of input image data corresponding to an edge area of the display panel and compensates a grayscale value of the input image data corresponding to the gain reducing area to generate a data signal. The data driver converts the data signal to a data voltage and outputs the data voltage to the display panel.

公开(公告)号：US09734764B2

公开(公告)日：2017-08-15

申请号：US14857609

申请日：2015-09-17

Applicant: Samsung Display Co., Ltd.

Inventor： Gilbae Park ,  Heesook Park ,  Joonsuk Baik ,  Jihye Eom

IPC: G09G5/00 ,  G09G3/3258 ,  G09G3/3208 ,  G09G3/36

CPC classification number: G09G3/3258 ,  G09G3/3208 ,  G09G3/3666 ,  G09G2300/043 ,  G09G2320/0223 ,  G09G2360/16

Abstract: A voltage drop compensator for a display device and the display device including the same are disclosed. In one aspect, the voltage drop compensator includes a region divider, an expected current calculator, a conversion matrix generator, a representative voltage calculator, and a compensator. The region divider is configured to divide the display panel into a plurality of regions, and the display panel includes a plurality of power lines and a plurality of pixels configured to receive a power voltage via the power lines. The expected current calculator is configured to calculate an expected current to flow in each of the regions based on input data provided to each of the regions. The conversion matrix generator configured to generate a conversion matrix based on a line resistance of each of the power lines and convert the expected current to a representative voltage provided to the regions based on the conversion matrix.