公开(公告)号：US20170345357A1

公开(公告)日：2017-11-30

申请号：US15682021

申请日：2017-08-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： KI-HO KONG ,  Dong-Wook Suh ,  Hee-Jong Kim ,  Chang-Hee Shin ,  Hyeok-Chul Kwon ,  Hong-Keun Yune

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673 ,  G09G2330/028

Abstract: A source driver for a display device includes a gamma voltage generation circuit, first through (2m)-th data driving circuits, and a switch circuit. The gamma voltage generation circuit generates R, G and B gamma voltages. The (2k−1)-th data driving circuits consecutively receive red image data and blue image data, and consecutively generate a R driving voltage and a B driving voltage using the R gamma voltages and B gamma voltages, respectively, during one horizontal period. The (2k)-th data driving circuits consecutively receive first green image data and second green image data, and consecutively generate a G1 driving voltage and a G2 driving voltage, respectively, using the G gamma voltages during the one horizontal period. The switch circuit outputs the R, B, G1, and G2 driving voltages through different data lines from each other based on a first selection signal and a second selection signal.

公开(公告)号：US10482804B2

公开(公告)日：2019-11-19

申请号：US15682021

申请日：2017-08-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-Ho Kong ,  Dong-Wook Suh ,  Hee-Jong Kim ,  Chang-Hee Shin ,  Hyeok-Chul Kwon ,  Hong-Keun Yune

IPC: G09G5/02 ,  G09G3/20

Abstract: A source driver for a display device includes a gamma voltage generation circuit, first through (2m)-th data driving circuits, and a switch circuit. The gamma voltage generation circuit generates R, G and B gamma voltages. The (2k−1)-th data driving circuits consecutively receive red image data and blue image data, and consecutively generate a R driving voltage and a B driving voltage using the R gamma voltages and B gamma voltages, respectively, during one horizontal period. The (2k)-th data driving circuits consecutively receive first green image data and second green image data, and consecutively generate a G1 driving voltage and a G2 driving voltage, respectively, using the G gamma voltages during the one horizontal period. The switch circuit outputs the R, B, G1, and G2 driving voltages through different data lines from each other based on a first selection signal and a second selection signal.

公开(公告)号：US09741280B2

公开(公告)日：2017-08-22

申请号：US15006618

申请日：2016-01-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-Ho Kong ,  Dong-Wook Suh ,  Hee-Jong Kim ,  Chang-Hee Shin ,  Hyeok-Chul Kwon ,  Hong-Keun Yune

IPC: G09G5/10 ,  G09G3/20

CPC classification number: G09G3/2003 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673 ,  G09G2330/028

Abstract: A source driver for a display device includes a gamma voltage generation circuit, first through (2m)-th data driving circuits, and a switch circuit. The gamma voltage generation circuit generates R, G and B gamma voltages. The (2k−1)-th data driving circuits consecutively receive red image data and blue image data, and consecutively generate a R driving voltage and a B driving voltage using the R gamma voltages and B gamma voltages, respectively, during one horizontal period. The (2k)-th data driving circuits consecutively receive first green image data and second green image data, and consecutively generate a G1 driving voltage and a G2 driving voltage, respectively, using the G gamma voltages during the one horizontal period. The switch circuit outputs the R, B, G1, and G2 driving voltages through different data lines from each other based on a first selection signal and a second selection signal.