公开(公告)号：US20190387163A1

公开(公告)日：2019-12-19

申请号：US16402168

申请日：2019-05-02

Applicant: Samsung Display Co., Ltd.

Inventor： Min Gyu KIM ,  Se Yun KIM ,  Si Hun JANG ,  Hoi Sik MOON

IPC: H04N5/232

Abstract: An image processing device for a mass produced display device includes an image obtaining capture to provide a single image frame including intensity values for respective coordinates of a display surface of the display device, and an image correcting unit to correct the intensity values of the single image frame of the display surface by using correction amount values with the corresponding correction direction values to provide a de-blurring image frame for the display surface, wherein the image correcting unit includes a correction amount calculating unit to calculate the correction amount values for the respective coordinates by using first derivative values with respect to the intensity values of the single image frame, and a correction direction calculating unit to calculate the correction direction values for the respective coordinates by using second derivative values with respect to the intensity values of the single image frame.

公开(公告)号：US20210287595A1

公开(公告)日：2021-09-16

申请号：US17198441

申请日：2021-03-11

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Hyeong AN ,  Hoi Sik MOON ,  Yoon Gu KIM ,  Jin Pil KIM ,  Jae Sung BAE ,  Nam Jae LIM ,  Ik Hyun AHN ,  Seung Young CHOI

IPC: G09G3/20

Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The driving controller processes input image data according to a variable input frequency and generates a data signal having a varied frame length. The data driver converts the data signal into a data voltage and outputs the data voltage to the display panel. The driving controller determines a variable frequency mode and generates an asymmetric data signal including a positive data signal and a negative data signal which are asymmetric with respect to a common voltage for a same grayscale value in the variable frequency mode.

公开(公告)号：US20210090527A1

公开(公告)日：2021-03-25

申请号：US16855953

申请日：2020-04-22

Applicant: Samsung Display Co., Ltd.

Inventor： Jeong Woon LEE ,  Min Gyu KIM ,  Sang Cheol PARK ,  Hoi Sik MOON

IPC: G09G5/393 ,  G09G3/20

Abstract: A controller includes a bit shifter and a stain compensator. The bit shifter may determine a bit shift value corresponding to a stain compensation value according to an area of a display panel. The bit shift value represents a quantity of integer bits and a quantity of decimal bits. At least one of the quantity of integer bits and the quantity of decimal bits corresponds to a quantity of stain compensation steps. The stain compensator may compensate a grayscale value of input image data using the stain compensation value and the bit shift value to generate compensated image data.

公开(公告)号：US20200082781A1

公开(公告)日：2020-03-12

申请号：US16523479

申请日：2019-07-26

Applicant: Samsung Display Co., Ltd.

Inventor： Taehyeong AN ,  Jai-Hyun KOH ,  Hoi Sik MOON ,  Jae Sung BAE ,  Namjae LIM ,  Nam-Gon CHOI

IPC: G09G5/00

Abstract: A display device includes a display panel comprising a plurality of pixels, a data driver configured to generate data voltages based on a gamma reference voltage, and to provide the data voltages to the plurality of pixels, a gate driver configured to provide gate signals to the plurality of pixels, and a controller configured to control the data driver and the gate driver. The controller is configured to initialize the gamma reference voltage when a blank period starts in a frame period comprising an active period and the blank period, and to change the gamma reference voltage when a duration of the blank period reaches at least one threshold time.

公开(公告)号：US20190196276A1

公开(公告)日：2019-06-27

申请号：US16288206

申请日：2019-02-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kang Hyun KIM ,  Hoi Sik MOON

IPC: G02F1/1343 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/1335

CPC classification number: G02F1/134309 ,  G02F1/133514 ,  G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2201/123 ,  G02F2201/52

Abstract: A liquid-crystal display device includes a first substrate, a plurality of pixel units disposed on the first substrate, a color filter layer overlapping the plurality of pixel units and including first to third color filters, a second substrate facing the first substrate, and a liquid-crystal layer interposed between the first substrate and the second substrate. Each of the pixel units of the plurality of the pixel units includes a first pixel, a second pixel and a third pixel. The first pixel includes a first pixel electrode, the second pixel includes a second pixel electrode, and the third pixel includes a first sub-pixel electrode and a second sub-pixel electrode. A voltage applied to the first sub-pixel electrode is different from a voltage applied to the second sub-pixel electrode.