The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 22, 2018

Filed:

Jun. 02, 2016
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Ju-Hyun Ko, Yongin-si, KR;

Yong-joo Song, Hwaseong-si, KR;

Jun-ho Song, Seoul, KR;

Jin-chul Choi, Goyang-si, KR;

Beop-hee Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); G09G 3/20 (2006.01); H03F 3/30 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45273 (2013.01); G09G 3/2092 (2013.01); H03F 3/3022 (2013.01); H03F 3/45219 (2013.01); H03F 3/45475 (2013.01); G09G 2310/0248 (2013.01); G09G 2310/0254 (2013.01); G09G 2310/0291 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01); H03F 2203/45112 (2013.01); H03F 2203/45726 (2013.01);
Abstract

A source driver includes a buffer device including a plurality of buffers corresponding to a plurality of data lines, each of the plurality of buffers respectively including an amplifier configured to amplify an input signal and an output driver configured to output a driving signal to a corresponding data line among the plurality of data lines; and a switch device including a charge sharing switch configured to electrically connect the plurality of data lines to one another during a charge sharing operation, each of the amplifiers including a first current mirror having a reference current path including a first node and an output current path including a second node, and the first node of the reference current path and the second node of the output current path are electrically connected to each other during the charge sharing operation.


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