Pixel and organic light-emitting diode (OLED) display having the same

摘要

A pixel and an organic light-emitting diode (OLED) display having the same are disclosed. In one aspect, a pixel includes an OLED including an anode and a cathode and configured to emit light corresponding to data signals applied during first and second frame periods. Each of the first and second frame periods includes a first discharge period and a light-emitting period subsequent to the first discharge period. The pixel also includes a pixel circuit configured to control light emission of the OLED, apply a first voltage to the anode during the light-emitting period, apply a second voltage to the cathode, the second voltage having a voltage level less than that of the first voltage, and apply a third voltage to the anode so as to discharge the anode during the first discharge period. The second voltage has different voltage levels during the first and second frame periods.

主权项

1. A pixel for an organic light-emitting diode (OLED) display, comprising:
an OLED including an anode and a cathode and configured to emit light corresponding to data signals applied during first and second frame periods, wherein each of the first and second frame periods includes a first discharge period and a light-emitting period subsequent to the first discharge period; and a pixel circuit configured to i) control light emission of the OLED, ii) apply a first voltage to the anode during the light-emitting period, iii) apply a second voltage to the cathode, the second voltage having a voltage level less than that of the first voltage, wherein the second voltage has different voltage levels during the first and second frame periods, and iv) apply a third voltage to the anode so as to discharge the anode during the first discharge period, wherein the difference between the second and third voltages is substantially constant during the first discharge period.