Patent ID: 9601056
Date: 2017-03-21
CPC Classifications: G09G

Claim:
1. A pixel, comprising: an organic light emitting diode (OLED) having a cathode electrode coupled to a second power supply; a pixel circuit including a first capacitor to store a voltage based on a previous data signal and to control an amount of current supplied to the OLED to correspond to the previous data signal; and a driver including a second capacitor to store a voltage based on a present data signal supplied from a data line and to supply the previous data signal to the pixel circuit, wherein: the first capacitor is electrically insulated from the second capacitor when the voltage based on the present data signal is transferred from the second capacitor to the pixel circuit; the OLED, pixel circuit, and driver are controlled by signals in a frame that includes first through fourth periods, the second power supply is set to a first voltage in the first and second periods and to a second voltage in the third and fourth periods, and the first voltage is a voltage at which the OLED does not emit light and the second voltage is a voltage at which the OLED emits light.