公开(公告)号：US20170032758A1

公开(公告)日：2017-02-02

申请号：US15158542

申请日：2016-05-18

Applicant: Samsung Display Co., Ltd.

Inventor： Min Ho PARK ,  Kyun Ho KIM ,  Sung In KANG ,  Yang Uk NAM ,  Yoon Sik PARK

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3688 ,  G09G3/2003 ,  G09G3/3696 ,  G09G2300/0426 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0276 ,  G09G2320/0673

Abstract: A gamma reference voltage generator includes first and second resistors between a base voltage source and an input node, a third resistor coupled to a first node between the first resistor and the second resistor, a first transistor coupled to the input node and coupled to a first output node, a fourth resistor coupled between the first transistor and the input node, an operational amplifier coupled to the first node and coupled to a second terminal of the third resistor, a second transistor coupled to the first transistor, coupled to the second terminal of the third resistor and a second output node, and coupled to an output terminal of the operational amplifier, a fifth resistor and a first capacitor coupled in parallel between the second output node and the base voltage source, and a plurality of resistors coupled between the first output node and the second output node.

Abstract translation: 伽马参考电压发生器包括在基极电压源和输入节点之间的第一和第二电阻器，耦合到第一电阻器和第二电阻器之间的第一节点的第三电阻器，耦合到输入节点并耦合到第一电阻器 输出节点，耦合在第一晶体管和输入节点之间的第四电阻器，耦合到第一节点并耦合到第三电阻器的第二端子的运算放大器，耦合到第一晶体管的第二晶体管，耦合到第一晶体管的第二端子 第三电阻器和第二输出节点，并且耦合到运算放大器的输出端子，并联在第二输出节点和基极电压源之间的第五电阻器和第一电容器，以及耦合在第一和第二电阻器之间的多个电阻器 输出节点和第二输出节点。