公开(公告)号：US09076372B2

公开(公告)日：2015-07-07

申请号：US14013997

申请日：2013-08-29

Applicant: INNOLUX CORPORATION

Inventor： Cheng-Chung Yang ,  Liang-Lu Chen ,  Chun Yu Chen ,  Hong-Ru Guo

IPC: G09G5/10 ,  G09G3/32

CPC classification number: G09G5/10 ,  G09G3/32 ,  G09G3/3233 ,  G09G3/3283 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/0626 ,  G09G2360/147

Abstract: The present disclosure provides a display device including a light emitting diode and a driving module. The driving module drives the light emitting diode. The driving module includes a first switch circuit, a second switch circuit, and a driver transistor. The first switch circuit selectively writes a gray scale voltage in a first capacitor. The second switch circuit selectively writes an offset voltage in a second capacitor. The driver transistor is coupled to the light emitting diode, the first capacitor, and the second capacitor. The driver transistor adjusts a driving current being outputted to the light emitting diode according to the gray scale voltage and the offset voltage. The gray scale voltage adjusts the voltage difference between the gate and the source of the driver transistor, while the offset voltage adjusts a threshold voltage of the driver transistor.

Abstract translation: 本公开提供了一种包括发光二极管和驱动模块的显示装置。 驱动模块驱动发光二极管。 驱动模块包括第一开关电路，第二开关电路和驱动晶体管。 第一开关电路在第一电容器中选择性地写入灰度电压。 第二开关电路选择性地将偏移电压写入第二电容器。 驱动晶体管耦合到发光二极管，第一电容器和第二电容器。 驱动晶体管根据灰度级电压和偏移电压来调节驱动电流输出到发光二极管。 灰度电压调节驱动晶体管的栅极和源极之间的电压差，而偏移电压调整驱动晶体管的阈值电压。