Invention Grant
US09275595B2 Output buffer circuit and source driving circuit including the same
有权
输出缓冲电路和源极驱动电路包括它们
- Patent Title: Output buffer circuit and source driving circuit including the same
- Patent Title (中): 输出缓冲电路和源极驱动电路包括它们
-
Application No.: US14185445Application Date: 2014-02-20
-
Publication No.: US09275595B2Publication Date: 2016-03-01
- Inventor: Jin-Han Kim , Jae-Wook Kwon , Seong-Jong Yoo , Ha-Jun Lee
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si, Gyeonggi-do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si, Gyeonggi-do
- Agency: Lee & Morse, P.C.
- Priority: KR10-2013-0023462 20130305
- Main IPC: G09G3/26
- IPC: G09G3/26 ; G09G3/36 ; H03K5/04 ; H03K19/003
Abstract:
A source driving circuit includes an output buffer circuit to compensate for slew rate of signals used to drive a display device. The output buffer circuit includes a bias current control signal generating circuit and a channel amplifying circuit. The bias current control signal generating circuit performs an exclusive OR operation on an input signal and an output signal of a reference operational amplifier to generate a bias current control signal. The channel amplifying circuit adjusts the slew rate of a plurality of output voltage signals in response to the bias current control signal. The output signals are then used to control the display device.
Public/Granted literature
- US20140253534A1 OUTPUT BUFFER CIRCUIT AND SOURCE DRIVING CIRCUIT INCLUDING THE SAME Public/Granted day:2014-09-11
Information query
IPC分类:
