Patent ID: 9047810
Filing Date: 2015-06-02
Classification: G09G

Abstract:
1. A circuit for eliminating ghost image in a display panel having a plurality of light emitters, the circuit comprising: a first circuit branch; a second circuit branch; and a third circuit branch; wherein the first circuit branch, the second circuit branch, and the third circuit branch are electrically coupled in parallel between a common cathode of the light emitters and a reference voltage; wherein the first circuit branch forms a first conductive path to charge parasitic capacitance in the display panel shortly after a previously selected light emitter is unselected; wherein the second branch forms a second conductive path to charge the parasitic capacitance immediately after a next light emitter is selected; and wherein the third branch forms a third conductive path to charge the parasitic capacitance so long as the previously selected light emitter is unselected, wherein the first circuit branch includes a first resistor having a first resistance, the second circuit branch includes a second resistor having a second resistance, and the third circuit branch includes a third resistor having a third resistance, and wherein the first resistance is substantially less than the second resistance, and the second resistance is substantially less than the third resistance.