Patent ID: 7940237
Filing Date: 2011-05-10
Classification: G09G

Abstract:
1. A flat panel display device structure, comprising: a plurality of pixels, each of the pixels containing a thin film transistor and a light generation device, wherein the drain of the thin film transistor couples with the light generation device; and a modulation unit having an input receiving an input signal and an output coupled to the gate terminal of the thin film transistor to supply an output signal thereto, said output signal relating to said input signal in accordance with a signal transformation curve of a predetermined shape, said modulation unit including an adjustment mechanism operating to translate said signal transformation curve vertically according to the voltage level of an external voltage signal, thereby tuning the brightness of the pixel, wherein said predetermined shape of said signal transformation curve remains substantially unchanged during said vertical translation thereof, wherein the voltage level of said external voltage signal is adjustable by a voltage divider having a single adjustable resistor, thereby allowing said adjustment mechanism to translate said signal transformation curve vertically accordingly; wherein there is only a single external voltage signal in said modulation unit; wherein there is only one adjustable resistor in the voltage divider.