公开(公告)号：US20220036857A1

公开(公告)日：2022-02-03

申请号：US17155487

申请日：2021-01-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： HONGKI KWON ,  TAEWOO KIM ,  JINYONG PARK ,  HYUNWOOK LIM ,  WOOHYUK JANG ,  HOJUN CHUNG

IPC: G09G5/10

Abstract: A method of luminance compensation includes; generating luminance compensation data based on test image data, each of the test image data corresponding to one gray level, and each of the luminance compensation data including compensation values corresponding to the one gray level, generating intra-plane data based on the luminance compensation data, one of the intra-plane data being generated based on one of the luminance compensation data, generating inter-plane stream data based on the intra-plane data, one of the inter-plane stream data being generated based on data blocks included in the intra-plane data and disposed at a same location within the intra-plane data, and sequentially storing the inter-plane stream data in a memory.

公开(公告)号：US20200265770A1

公开(公告)日：2020-08-20

申请号：US16866930

申请日：2020-05-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hojun CHUNG ,  HONGKI KWON ,  TaeWoo KIM ,  Jinyong PARK ,  JaeYoul LEE

IPC: G09G3/20 ,  H04N19/182 ,  H04N19/176

Abstract: The present invention provides a display driver circuit. A determination circuit is configured to select a first mode for encoding first image data based on a first set of conditions respectively corresponding to a first set of modes. An encoder is configured to encode the first image data in the first mode. The determination circuit is additionally configured to select a second mode for encoding second image data received (n−1)th after the first image data are received; and to select a third mode for encoding third image data received(n)th after the first image data are received, based on a second set of conditions respectively corresponding to the first set of modes. A second condition in the second set of the conditions corresponding to the second mode includes a wider range of values than a first condition in the first set of the conditions corresponding to the second mode.

公开(公告)号：US20210366442A1

公开(公告)日：2021-11-25

申请号：US17393691

申请日：2021-08-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： TAEWOO KIM ,  HONGKI KWON ,  JAEHUN KIM ,  JINYONG PARK ,  JAEYOUL LEE ,  HYUNWOOK LIM ,  WOOHYUK JANG ,  HOJUN CHUNG

IPC: G09G5/393 ,  G06T5/00 ,  G06T5/50

Abstract: A display driver circuit includes a receiver that receives a still image or a moving image, a frame buffer that stores the still image received by the receiver in a still image mode, an image processor that performs an image enhancement operation on the moving image transferred from the receiver or the still image transferred from the frame buffer, and a motion processor that performs a motion compensation operation using a current frame output from the image processor and a previous frame stored in the frame buffer in a moving image mode. The previous frame is data which, in the moving image mode, are processed by the image processor before the current frame and are then stored in the frame buffer. The previous frame is output from the frame buffer to the motion processor in synchronization with the current frame.

公开(公告)号：US20200168183A1

公开(公告)日：2020-05-28

申请号：US16584228

申请日：2019-09-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： TAEWOO KIM ,  HONGKI KWON ,  JAEHUN KIM ,  JINYONG PARK ,  JAEYOUL LEE ,  HYUNWOOK LIM ,  WOOHYUK JANG ,  HOJUN CHUNG

IPC: G09G5/393 ,  G06T5/00 ,  G06T5/50

Abstract: A display driver circuit includes a receiver that receives a still image or a moving image, a frame buffer that stores the still image received by the receiver in a still image mode, an image processor that performs an image enhancement operation on the moving image transferred from the receiver or the still image transferred from the frame buffer, and a motion processor that performs a motion compensation operation using a current frame output from the image processor and a previous frame stored in the frame buffer in a moving image mode. The previous frame is data which, in the moving image mode, are processed by the image processor before the current frame and are then stored in the frame buffer. The previous frame is output from the frame buffer to the motion processor in synchronization with the current frame.

公开(公告)号：US20220093026A1

公开(公告)日：2022-03-24

申请号：US17462646

申请日：2021-08-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： BYEONGCHEOL JANG ,  YONGHOON YU ,  HONGKI KWON ,  TAEWOO KIM ,  JINYONG PARK ,  HYUNWOOK LIM ,  WOOHYUK JANG ,  HOJUN CHUNG

IPC: G09G3/20

Abstract: Provided are a low-power display driving circuit performing internal encoding and decoding and an operating method thereof. The display driving circuit includes a memory configured to store an input bit stream encoded by an encoder and a controller configured to determine a data path through which output frame data in a second frame period passes according to whether internal encoding is successful in a first frame period, wherein, when the internal encoding is successful, the controller performs internal encoding in the second frame period, stores a generated internal bit stream in the memory, allows the internal bit stream to pass through a low-power path to generate the output frame data, and when the internal encoding fails, the controller generates the output frame data by allowing the input bit stream to pass through a normal path in the second frame period, changes an encoding setting of an internal encoder, and repeats the internal encoding.

公开(公告)号：US20190385508A1

公开(公告)日：2019-12-19

申请号：US16257420

申请日：2019-01-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hojun CHUNG ,  HONGKI KWON ,  TaeWoo KIM ,  Jinyong PARK ,  JaeYoul LEE

IPC: G09G3/20 ,  H04N19/176 ,  H04N19/182

Abstract: The present invention provides a display driver circuit. A determination circuit is configured to select a first mode for encoding first image data based on a first set of conditions respectively corresponding to a first set of modes. An encoder is configured to encode the first image data in the first mode. The determination circuit is additionally configured to select a second mode for encoding second image data received (n−1)th after the first image data are received; and to select a third mode for encoding third image data received (n)th after the first image data are received, based on a second set of conditions respectively corresponding to the first set of modes. A second condition in the second set of the conditions corresponding to the second mode includes a wider range of values than a first condition in the first set of the conditions corresponding to the second mode.