公开(公告)号：US20240233609A9

公开(公告)日：2024-07-11

申请号：US18466892

申请日：2023-09-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ying-Da Chang ,  Chulho Choi ,  Yu-Chieh Huang ,  Ching-Chieh Wu ,  Hajoon Shin ,  Zhen-Guo Ding ,  Jia-Way Chen ,  Kyunlyeol Lee ,  Yongjoo Song

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G2310/0267 ,  G09G2310/0291 ,  G09G2320/0626 ,  G09G2320/0673

Abstract: A gamma tap circuit includes: (i) a first gamma division circuit configured to generate a first gamma tap voltage by performing voltage division of an upper gamma tap voltage and a lower gamma tap voltage, in-sync with a first clock signal CK1 and a first complementary clock signal CK1b, which is 180° out-of-phase relative to CK1, (ii) a second gamma division circuit configured to generate a second gamma tap voltage by performing voltage division of the upper gamma tap voltage and the first gamma tap voltage, in-sync with a second clock signal CK2 and a second complementary clock signal CK2b, which is 180° out-of-phase relative to CK2, and (iii) a third gamma division circuit configured to generate a third gamma tap voltage by performing voltage division of the first gamma tap voltage and the lower gamma tap voltage, in response to CK2 and CK2b, which have a lower frequency relative to CK1 and CK1b.

公开(公告)号：US11521534B2

公开(公告)日：2022-12-06

申请号：US17519724

申请日：2021-11-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Shih Chiao Huang ,  Jinwoo Kim ,  Tao-Jung Hung ,  Chulho Choi ,  Hajoon Shin ,  Myungho Seo ,  Yongjoo Song ,  Shih-Hsiung Kuo ,  Chui-Hsun Chiu ,  Jia Wei Chen ,  Chao Hsuan Liu ,  Yu-Wen Chiou

IPC: G09G3/20

Abstract: A display driving integrated circuit includes a common voltage buffer configured to provide a common voltage to a display panel and when a line outputting the common voltage and a gate line are short-circuited, apply a first current to the gate line or receive a second current from the gate line; a current generator configured to sum currents respectively corresponding to the first current and the second current and output an output current obtained by the summing; and a current detector configured to convert the output current into an output voltage and output a high or low signal based on a result of comparing the output voltage with a preset voltage.

公开(公告)号：US12020618B2

公开(公告)日：2024-06-25

申请号：US17990179

申请日：2022-11-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chulho Choi ,  Yu-Chieh Huang ,  Hajoon Shin ,  Han-Chiang Su ,  Jia-Way Chen ,  Kyunlyeol Lee ,  Yi-Chien Wen ,  Yongjoo Song ,  Shih-Chiao Huang

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/0251 ,  G09G2310/0275 ,  G09G2320/0223

Abstract: The present disclosure provides methods, apparatuses, and non-transitory computer-readable mediums for setting charge sharing times, which may be adaptable to a display panel. In some embodiments, the apparatus includes a pixel array and a source driver configured to drive each column of the pixel array. In some embodiments, a setting method of charge sharing times includes grouping a plurality of pixels of a pixel array in a row direction to form a plurality of pixel groups. The setting method further includes setting a charge sharing time of each pixel group of the plurality of pixel groups according to a quantity of pixel groups in the plurality of pixel groups. A charge sharing time of a pixel group located closest to a source driver in the pixel array is greater than a charge sharing time of a pixel group located farthest from the source driver in the pixel array.

公开(公告)号：US12159567B2

公开(公告)日：2024-12-03

申请号：US18466892

申请日：2023-09-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ying-Da Chang ,  Chulho Choi ,  Yu-Chieh Huang ,  Ching-Chieh Wu ,  Hajoon Shin ,  Zhen-Guo Ding ,  Jia-Way Chen ,  Kyunlyeol Lee ,  Yongjoo Song

IPC: G09G3/20 ,  G09G3/36

Abstract: A gamma tap circuit includes: (i) a first gamma division circuit configured to generate a first gamma tap voltage by performing voltage division of an upper gamma tap voltage and a lower gamma tap voltage, in-sync with a first clock signal CK1 and a first complementary clock signal CK1b, which is 180° out-of-phase relative to CK1, (ii) a second gamma division circuit configured to generate a second gamma tap voltage by performing voltage division of the upper gamma tap voltage and the first gamma tap voltage, in-sync with a second clock signal CK2 and a second complementary clock signal CK2b, which is 180° out-of-phase relative to CK2, and (iii) a third gamma division circuit configured to generate a third gamma tap voltage by performing voltage division of the first gamma tap voltage and the lower gamma tap voltage, in response to CK2 and CK2b, which have a lower frequency relative to CK1 and CK1b.

公开(公告)号：US20240135859A1

公开(公告)日：2024-04-25

申请号：US18466892

申请日：2023-09-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ying-Da Chang ,  Chulho Choi ,  Yu-Chieh Huang ,  Ching-Chieh Wu ,  Hajoon Shin ,  Zhen-Guo Ding ,  Jia-Way Chen ,  Kyunlyeol Lee ,  Yongjoo Song

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G2310/0267 ,  G09G2310/0291 ,  G09G2320/0626 ,  G09G2320/0673

Abstract: A gamma tap circuit includes: (i) a first gamma division circuit configured to generate a first gamma tap voltage by performing voltage division of an upper gamma tap voltage and a lower gamma tap voltage, in-sync with a first clock signal CK1 and a first complementary clock signal CK1b, which is 180° out-of-phase relative to CK1, (ii) a second gamma division circuit configured to generate a second gamma tap voltage by performing voltage division of the upper gamma tap voltage and the first gamma tap voltage, in-sync with a second clock signal CK2 and a second complementary clock signal CK2b, which is 180° out-of-phase relative to CK2, and (iii) a third gamma division circuit configured to generate a third gamma tap voltage by performing voltage division of the first gamma tap voltage and the lower gamma tap voltage, in response to CK2 and CK2b, which have a lower frequency relative to CK1 and CK1b.