公开(公告)号：US20180315390A1

公开(公告)日：2018-11-01

申请号：US15951596

申请日：2018-04-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki-ho KONG ,  Taek-su KWON ,  Jong-hyun KIM ,  Jee-hwal KIM ,  Jun-ho PARK ,  Hong-Keun YUNE

IPC: G09G3/36 ,  G09G5/02

CPC classification number: G09G3/3688 ,  G09G3/20 ,  G09G3/3258 ,  G09G3/3611 ,  G09G3/3677 ,  G09G5/02 ,  G09G2300/0452 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/021 ,  G09G2310/0275 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2330/021

Abstract: Disclosed are a display driving circuit and a display apparatus including the same. A display driving circuit includes a first amplifier configured to drive a first data line of a display panel based on first pixel data and a second amplifier configured to drive a second data line of the display panel based on second pixel data, wherein, when a first data difference between the first pixel data and the second pixel data is greater than or equal to a data value indicating one grayscale and is less than or equal to a first threshold value, the second amplifier is turned off, and the first amplifier is configured to drive the first data line and the second data line based on the first pixel data and the second pixel data.

公开(公告)号：US20160321977A1

公开(公告)日：2016-11-03

申请号：US15006618

申请日：2016-01-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-Ho KONG ,  Dong-Wook SUH ,  Hee-Jong KIM ,  Chang-Hee SHIN ,  Hyeok-Chul KWON ,  Hong-Keun YUNE

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673 ,  G09G2330/028

Abstract: A source driver for a display device includes a gamma voltage generation circuit, first through (2m)-th data driving circuits, and a switch circuit. The gamma voltage generation circuit generates R, G and B gamma voltages. The (2k−1)-th data driving circuits consecutively receive red image data and blue image data, and consecutively generate a R driving voltage and a B driving voltage using the R gamma voltages and B gamma voltages, respectively, during one horizontal period. The (2k)-th data driving circuits consecutively receive first green image data and second green image data, and consecutively generate a G1 driving voltage and a G2 driving voltage, respectively, using the G gamma voltages during the one horizontal period. The switch circuit outputs the R, B, G1, and G2 driving voltages through different data lines from each other based on a first selection signal and a second selection signal.

Abstract translation: 用于显示装置的源极驱动器包括伽玛电压产生电路，第一至第（2m）数据驱动电路和开关电路。 伽马电压产生电路产生R，G和B伽马电压。 （2k-1）数据驱动电路在一个水平周期期间分别连续地接收红色图像数据和蓝色图像数据，并分别使用R伽马电压和B伽马电压连续生成R驱动电压和B驱动电压。 （2k）数据驱动电路在一个水平周期期间使用G伽马电压分别连续地接收第一绿色图像数据和第二绿色图像数据，并分别产生G1驱动电压和G2驱动电压。 开关电路基于第一选择信号和第二选择信号，通过不同的数据线将R，B，G1和G2驱动电压相互输出。