公开(公告)号：US20220189364A1

公开(公告)日：2022-06-16

申请号：US17412965

申请日：2021-08-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinyong PARK ,  Hongki KWON ,  Taewoo KIM ,  Yonghoon YU ,  Hyunwook LIM ,  Byeongcheol JANG ,  Woohyuk JANG ,  Hojun CHUNG

IPC: G09G3/20 ,  G06T1/60 ,  G06T1/20 ,  G06T9/00

Abstract: A display driver circuit receives externally-encoded image data and processes the data using a memory (graphic RAM), an internal encoder, and an external decoder configured to operate on the externally-encoded image data. The processed data is provided to a display device by a source driver of the display driver circuit. Data is processed through the graphic RAM and an internal decoder or the external decoder depending on whether a slice of the data is a currently received update slice, a recently received standby slice, or a still slice.

公开(公告)号：US20230154415A1

公开(公告)日：2023-05-18

申请号：US17895544

申请日：2022-08-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byoungyoon JANG ,  Sewhan NA ,  Jonghee NA ,  Yonghoon YU ,  Hyunwook LIM

IPC: G09G3/3291 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/2003 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2360/16 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0673

Abstract: An electroluminescent display device includes a display panel including pixels, a storage circuit, a luminance compensation circuit and a data driver. The storage circuit stores information on a leakage curve indicating a luminance change value of a target pixel according to a change of an input pixel value of a neighboring pixel, the plurality of pixels including the target pixel and the neighboring pixel. The luminance compensation circuit receives input pixel values corresponding to the pixels and generates compensated pixel values respectively corresponding to the pixels by compensating for lateral leakage based on the leakage curve, where the lateral leakage is caused by leakage currents through a common conduction layer of the pixels. The data driver drives the pixels based on the compensated pixel values. The exact (or close) luminance of the input image is realized by compensating for the luminance distortion.

公开(公告)号：US20230388522A1

公开(公告)日：2023-11-30

申请号：US18233614

申请日：2023-08-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinyong PARK ,  Hongki KWON ,  Taewoo KIM ,  Yonghoon YU ,  Hyunwook LIM ,  Byeongcheol JANG ,  Woohuk JANG ,  Hojun Chung

IPC: H04N19/174 ,  G09G5/00

CPC classification number: H04N19/174 ,  G09G2360/127 ,  G09G2310/04 ,  G09G5/006

Abstract: A display driver circuit receives externally-encoded image data and processes the data using a memory (graphic RAM), an internal encoder, and an external decoder configured to operate on the externally-encoded image data. The processed data is provided to a display device by a source driver of the display driver circuit. Data is processed through the graphic RAM and an internal decoder or the external decoder depending on whether a slice of the data is a currently received update slice, a recently received standby slice, or a still slice.

公开(公告)号：US20220139309A1

公开(公告)日：2022-05-05

申请号：US17348151

申请日：2021-06-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jiheon OK ,  Hyeonsu PARK ,  Jooyoung AN ,  Yonghoon YU ,  Hyunwook LIM ,  Woohyuk JANG

IPC: G09G3/3208

Abstract: To compensate for degeneration of an electroluminescent display device, a method of compensating for the degeneration may include, grouping a plurality of pixels in a display panel into a plurality of pixel blocks arranged in present block rows and present block columns based on initial block boundaries, accumulating block stress values based on input image data, each accumulated block stress value representing a degeneration degree of the pixels included in each pixel block of the plurality of pixel blocks, performing a boundary updating operation on the plurality of pixel blocks, the performing the boundary updating operation including moving present block boundaries of the plurality of pixel blocks to updated block boundaries based on a distribution of the accumulated block stress values, and correcting the input image data based on the accumulated block stress values and the updated block boundaries.