| 主权项 |
1. A light emitting display device comprising a plurality of pixels for displaying an image,
wherein each pixel includes: a data switching element controlled according to a scan signal from a scan line and coupled between a data line and a first node; a light emission control switching element controlled according to a light emission control signal from a light emission control line and coupled between the first node and a second node; a driving switching element controlled according to the voltage of the second node and coupled between a first driving power supply line for transmitting a first driving voltage and a third node; a sensing switching element controlled according to a sense signal from a sense line and coupled between a first capacitor and the second node; an initialization switching element controlled according to an initialization signal from an initialization line and coupled between the third node and an initialization power supply line for transmitting an initialization voltage; a reference switching element controlled according to the initialization signal from the initialization line and coupled between the second node and a reference power supply line for transmitting a reference voltage; a second capacitor coupled between the first node and the second node; a third capacitor coupled between the first node and the third node; and a light emitting diode having an anode electrode coupled to the third node and a cathode electrode coupled to a second driving power supply line for transmitting a second driving voltage, wherein the first capacitor is coupled between the sensing switching element and the first driving power supply line, wherein the scan signal, the initialization signal, the light emission control signal and the sense signal are changed to an active state or an inactive state based on an initialization period, a threshold voltage detection period, a data writing period and a light emission period, all of which are sequentially generated, wherein, during the initialization period, the initialization signal, the sense signal and the light emission control signal are maintained in the active state and the scan signal is maintained in the inactive state, wherein, during the threshold voltage detection period, the sense signal is maintained in the active state and the initialization signal, the scan signal and the light emission control signal are maintained in the inactive state, wherein, during the data writing period, the scan signal and the sense signal are maintained in the active state and the initialization signal and the light emission control signal are maintained in the inactive state, wherein, during the data writing period, a data signal is supplied to the data line, and wherein, during the light emission period, the light emission control signal is sequentially in the active state and the inactive state or is maintained in the active state and the scan signal, the initialization signal and the sense signal are maintained in the inactive state. |
