公开(公告)号：US10706805B2

公开(公告)日：2020-07-07

申请号：US16150419

申请日：2018-10-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Pan Soo Kim ,  Jin Han Kim ,  Mi Ri Park ,  Myung Ho Seo ,  Hyun Ji Yoon ,  Jin Chul Choi

IPC: G09G3/36

Abstract: A source driver includes a buffer unit including a plurality of unit buffers corresponding to a plurality of source lines, where each of the plurality of unit buffers includes a plurality of input terminals and an output terminal connected to at least one of the plurality of source lines, and a decoder unit configured to receive image data and a plurality of gamma voltages, and input at least one of the plurality of gamma voltages to the plurality of input terminals of each of the plurality of unit buffers, using the image data. The decoder unit inputs two or more of the gamma voltages, having different magnitudes, to the plurality of input terminals of each of first unit buffers among the plurality of unit buffers, and the first unit buffers output a gradation voltage higher than a first voltage and lower than a second voltage.

公开(公告)号：US20190304395A1

公开(公告)日：2019-10-03

申请号：US16150419

申请日：2018-10-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： PAN SOO KIM ,  Jin Han Kim ,  Mi Ri Park ,  Myung Ho Seo ,  Hyun Ji Yoon ,  Jin Chul Choi

IPC: G09G3/36

Abstract: A source driver includes a buffer unit including a plurality of unit buffers corresponding to a plurality of source lines, where each of the plurality of unit buffers includes a plurality of input terminals and an output terminal connected to at least one of the plurality of source lines, and a decoder unit configured to receive image data and a plurality of gamma voltages, and input at least one of the plurality of gamma voltages to the plurality of input terminals of each of the plurality of unit buffers, using the image data. The decoder unit inputs two or more of the gamma voltages, having different magnitudes, to the plurality of input terminals of each of first unit buffers among the plurality of unit buffers, and the first unit buffers output a gradation voltage higher than a first voltage and lower than a second voltage.

公开(公告)号：US08963448B2

公开(公告)日：2015-02-24

申请号：US13800077

申请日：2013-03-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyung Tae Kim ,  Soo Ik Cha ,  Jun Ho Song ,  Jin Chul Choi ,  Chul Ho Choi

IPC: H03F3/45 ,  G09G3/22 ,  H03F3/30 ,  G09G3/36

CPC classification number: H03F3/45179 ,  G09G3/22 ,  G09G3/3688 ,  G09G2310/0291 ,  H03F3/3022 ,  H03F3/45475 ,  H03F2203/45248 ,  H03F2203/45528

Abstract: An output buffer circuit includes an amplifier and a transmission circuit. The amplifier includes a plurality of inputs and an output. The inputs provide first input signals and second input signals to the amplifier. The output provides an output signal as a first input signal of the first input signals to the amplifier. The transmission circuit has an input coupled to the output of the amplifier and further has an output that provides a transmission circuit output signal as a second input signal of the second input signals to the amplifier.

Abstract translation: 输出缓冲电路包括放大器和发送电路。 放大器包括多个输入和输出。 输入端为放大器提供第一输入信号和第二输入信号。 该输出提供输出信号作为到放大器的第一输入信号的第一输入信号。 发送电路具有耦合到放大器的输出端的输入端，并且还具有输出，该输出端将作为第二输入信号的第二输入信号的发送电路输出信号提供给放大器。