Patent ID: 9076372
Filing Date: 2015-07-07
Classification: G09G

Abstract:
1. A display device with a plurality of pixels, at least one of the pixels comprising: a light emitting diode; and a driving module, used for driving the light emitting diode, and the driving module comprising: a first switch circuit, selectively writing a gray scale voltage into a first capacitor; a second switch circuit, selectively writing an offset voltage into a second capacitor; and a driver transistor, respectively coupled to the light emitting diode, the first capacitor, and the second capacitor, adjusting a driving current outputted to the light emitting diode according to the gray scale voltage and the offset voltage; wherein, the gray scale voltage adjusts the voltage difference between a gate and a source of the driver transistor, and the offset voltage adjusts a threshold voltage of the driver transistor; wherein when the brightness of the light emitting diode is lower than a first threshold value, the offset voltage decreases the threshold voltage to increase the driving current; when the brightness of the light emitting diode is higher than a second threshold value, the offset voltage increases the threshold voltage to decrease the driving current.