Patent ID: 8259060
Filing Date: 2012-09-04
Classification: G09G

Abstract:
1. A drive circuit of light source by color sequential method, comprising: a plurality of radiating areas; a plurality of light units, including a red light unit, a green light unit and a blue light unit, in each of said plurality of radiating areas, to provide required light to said plurality of radiating areas; a color sequential control circuit electrically connected to a dual loop pulse width modulation control circuit and a level shift circuit in each of said plurality of radiating areas, to control the display of the plurality of light units in each of said plurality of radiating areas by color sequential method; and a charge recycle circuit connected to the plurality of light units and the level shift circuit in each of said plurality of radiating areas, to store voltage difference of a second voltage of the blue light unit or the green light unit subtracting a first voltage of the red light unit and output a first voltage level when said plurality of light units turn from the green unit or blue light unit to the red light unit, wherein the dual loop pulse width modulation control circuit is connected to positive electrodes of said plurality of light units, and each of said radiating areas includes: wherein said color sequential control circuit comprises: