Patent ID: 8957842
Filing Date: 2015-02-17
Classification: G09G

Abstract:
1. A pixel circuitry of a display device, comprising: a first write switch, having a first terminal coupled to a data line, the first write switch being controlled by a first switching voltage; a first write memory unit, coupled to a second terminal of the first write switch, wherein the first write memory unit stores a first data voltage through the first write switch; a first voltage following module, having an input terminal coupled to the first write memory unit to detect the first data voltage stored in the first write memory unit and to generate a first output voltage correspondingly at an output terminal of the first voltage following module according to a detection result, wherein the output terminal of the first voltage following module is controlled by a second switching voltage; a display element, coupled to the output terminal of the first voltage following module to receive the first output voltage through the first voltage following module during a frame period; a first shorting switch having a first terminal directly coupled to the first write memory unit, a second terminal of the first shorting switch being directly coupled to the display element, and the first shorting switch being controlled by a first shorting voltage; a second write switch, having a first terminal coupled to the data line, the second write switch being controlled by a third switching voltage; a second write memory unit, coupled to a second terminal of the second write switch, wherein the second write memory unit stores a second data voltage through the second write switch; a second voltage following module, having an input terminal being coupled to the second write memory unit, an output terminal of the second voltage following module being coupled to the display element so as to detect the second data voltage stored in the second write memory unit and to generate a second output voltage correspondingly at the output terminal of the second voltage following module according to a detection result, wherein the output terminal of the second voltage following module is controlled by a fourth switching voltage; and a second shorting switch having a first terminal coupled to the second write memory unit, a second terminal of the second shorting switch being coupled to the display element, and the second shorting switch being controlled by a second shorting voltage.