Patent ID: 8416160

Claim:
A light emitting device, comprising: data lines disposed in a first direction; scan lines disposed in a second direction different from the first direction; a plurality of pixels formed in cross areas of the data lines and the scan lines; and a discharging circuit configured to: discharge at least one data line to a first discharge voltage during a first sub-discharging time of a discharging time; and change the first discharge voltage into a second discharge voltage during a second sub-discharging time of the discharging time, wherein the discharging circuit comprises: a sub-discharging circuit configured to: provide a first output voltage corresponding to the first discharge voltage to the data lines during the first sub-discharging time, and provide a second output voltage corresponding to the second discharge voltage to the data lines during the second sub-discharging time, and a discharging level circuit configured to have switches for switching a coupling between the data lines and the sub-discharging circuit, respectively, wherein the switches couple the data lines to the sub-discharging circuit during the first sub-discharging time, and are turned off in sequence in units of N switches during the second sub-discharging time, N being an integer greater than 1, wherein when cathode voltage of pixel related to a first outmost data line of outmost data lines of the data lines is higher than that of pixel related to a second outmost data line of the outmost data lines, wherein the first discharge voltage is smaller than the second discharge voltage, and wherein the switches are turned off in sequence in units of N switches in a direction of the first outmost data line from the second outmost data line during the second sub-discharging time.