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：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.