Patent ID: 8184081

Claim:
A pixel unit for use in a display apparatus, the display apparatus comprising a driving circuit, the pixel unit comprising: a switch circuit; and an energy accumulation circuit, having: a first end, coupled to the switch circuit; a second end, electrically connected to the driving circuit wherein the driving circuit provides a first voltage to the second end of the energy accumulation circuit in a first half period and another first voltage to the second end of the energy accumulation circuit in a second half period, the first voltage is opposite to the another first voltage; and a third end, electrically connected to the driving circuit wherein the driving circuit provides a second voltage and a third voltage to the third end of the energy accumulation circuit in the first half period and another second voltage and another third voltage to the third end of the energy accumulation circuit in the second half period to oscillate a voltage difference between the first end and the second end to reduce color washout; wherein the second voltage is opposite to the another second voltage, the third voltage is opposite to the another third voltage, the second voltage is different from the third voltage, the another second voltage is different from the another third voltage, the second voltage and the third voltage have a first polarity, and the another second voltage and the another third voltage have a polarity opposite that of the first polarity.