公开(公告)号：US10770022B2

公开(公告)日：2020-09-08

申请号：US16288166

申请日：2019-02-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joway Chen ,  Chul Ho Choi ,  Dip Wu ,  Hyeong Tae Kim ,  Yuwen Chiou ,  Jin Woo Kim

IPC: G09G3/36 ,  G09G3/3266 ,  G09G3/3275

Abstract: A source driver including: a first source line; a second source line; a charge sharing switch which controls a connection between the first source line and the second source line; a first cross charge sharing switch which controls a connection between a first capacitor and the first source line, and a connection between a second capacitor and the second source line; and a second cross charge sharing switch which controls a connection between the first capacitor and the second source line, and a connection between the second capacitor and the first source line.

公开(公告)号：US10692456B2

公开(公告)日：2020-06-23

申请号：US16256899

申请日：2019-01-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chul Ho Choi ,  Dip Wu ,  Jason Kuo ,  Jin Soo Kim ,  Joway Chen ,  Yuwen Chiou ,  Robert Lin

IPC: G09G3/36

Abstract: A display driver includes a first latch storing first image data, a second latch storing second image data, and a buffer unit including a plurality of output buffers outputting a source voltage corresponding to the first image data. Each of the plurality of output buffers includes an input stage, an output stage, and a pre-charge circuit connected between the input stage and the output stage. A pre-charge control unit compares the first image data with the second image data to control the pre-charge circuit.