公开(公告)号：US20220189413A1

公开(公告)日：2022-06-16

申请号：US17687906

申请日：2022-03-07

Applicant: Samsung Display Co., Ltd.

Inventor： Jinpil KIM ,  Namjae LIM ,  Hoisik MOON ,  Jae Sung BAE

IPC: G09G3/3275 ,  G09G3/36

Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The display panel is configured to display an image. The driving controller is configured to generate a compensated image data for compensating a decrease of a luminance of an edge portion of the display panel based on input image data. The data driver is configured to output a data voltage to the display panel based on the compensated image data. The driving controller is configured to generate the compensated image data by comparing a maximum value among subpixel grayscale values of the input image data to which a luminance compensating coefficient is applied and a maximum grayscale value of the input image data. The luminance compensating coefficient is configured to be determined according to a location in the display panel.

公开(公告)号：US20200175910A1

公开(公告)日：2020-06-04

申请号：US16701753

申请日：2019-12-03

Applicant: Samsung Display Co., Ltd.

Inventor： Mingyu KIM ,  Hoisik MOON ,  Hee Joon KIM ,  Juneyoung LEE

IPC: G09G3/20

Abstract: A display apparatus includes a display panel, a driving controller, a gate driver and a data driver. The display panel includes a plurality of gate lines, a plurality of data lines and a plurality of pixels. The pixels are connected to the gate lines and the data lines. The driving controller determines a compensating value of a present data signal based on a previous data signal and the present data signal which are applied to a same data line of the data lines. The gate driver outputs a gate signal to the gate line. The data driver generates a data voltage based on the present data signal and the compensating value and outputs the data voltage to the same data line.

公开(公告)号：US20200219433A1

公开(公告)日：2020-07-09

申请号：US16710164

申请日：2019-12-11

Applicant: Samsung Display Co., Ltd.

Inventor： Hyungwoo YIM ,  Juneyoung LEE ,  Jae-Seob CHUNG ,  Hoisik MOON

IPC: G09G3/20

Abstract: In a method of generating correction data for a display device, measured tristimulus data at a maximum gray level are obtained, measured luminance and color coordinate profiles are obtained based on the measured tristimulus data, a target color coordinate profile is determined based on the measured color coordinate profile, measured red, green and blue maximum luminances of each pixel are obtained, a maximum target luminance of the each pixel is determined such that red, green and blue luminances of the each pixel become lower than or equal to the measured red, green and blue maximum luminances, respectively, a final target luminance profile is determined based on the measured luminance profile and the maximum target luminance of the each pixel, and correction data may be generated and stored in the display device based on the final target luminance profile and the target color coordinate profile.

公开(公告)号：US20190333196A1

公开(公告)日：2019-10-31

申请号：US16380324

申请日：2019-04-10

Applicant: Samsung Display Co., Ltd.

Inventor： Jinpil KIM ,  Hoisik MOON ,  Jaesung BAE ,  Jeongwoon LEE ,  Namjae LIM

IPC: G06T5/00 ,  G09G3/36 ,  G06T5/50

Abstract: An image processing circuit includes a memory, a gamma converter which converts a first image data signal of a frame to a current image data signal thereof corresponding to first or second gamma types based on a spatial distribution pattern, a compression circuit which separates the current image data signal into first and second gamma signals corresponding to the first and second gamma types and compresses the first and second gamma signals to first and second compression gamma signals to store the first and second compression gamma signals, a decompression circuit which output a previous image data signal of a previous frame by decompressing the first and second compression gamma signals and combines first and second decompression gamma signals, and a gamma correction circuit which performs a gamma adjustment based on current and previous image data signals to output a second image data signal.

公开(公告)号：US20200335033A1

公开(公告)日：2020-10-22

申请号：US16850647

申请日：2020-04-16

Applicant: Samsung Display Co., Ltd.

Inventor： Jinpil KIM ,  Hoisik MOON

IPC: G09G3/32

Abstract: A display apparatus includes: a display panel comprising a plurality of pixels configured to display an image based on input image data; a gate driver configured to output a gate signal to the display panel; a data driver configured to output a data voltage to the display panel; a light source part configured to provide light to the display panel and comprising a plurality of light sources; and a light source driver configured to drive the light source part, wherein a first light source of the light source part is configured to output a first luminance in an active period defined by the data voltage being output to the pixel and a second luminance greater than the first luminance in an inactive period defined by the data voltage is not being output to the pixel.

公开(公告)号：US20200152142A1

公开(公告)日：2020-05-14

申请号：US16576576

申请日：2019-09-19

Applicant: Samsung Display Co., Ltd.

Inventor： Jinpil KIM ,  Hoisik MOON ,  Byoung Seok YOO ,  Youngsuk HA

IPC: G09G3/36

Abstract: A display device includes a display panel including a first sub-pixel and a second sub-pixel, a gamma generator configured to change a dividing ratio of a high gamma curve and a low gamma curve applied to the high sub-pixel and the low sub-pixel based on a position of the first sub-pixel and to generate a high gamma data corresponding to the high gamma curve and a low gamma data corresponding to the low gamma curve, and a data driver configured to convert the high gamma data and the low gamma data to a high data voltage and a low data voltage.