Organic light emitting diode display
An organic light emitting diode display includes: a substrate, a scan line and a previous stage scan line on the substrate to transmit scan signals; a data line and a driving voltage line crossing the scan line and to transmit a data voltage and a driving voltage, respectively; an initialization transistor connected to the previous stage scan line and the driving voltage line, and including an initialization drain electrode connected to a driving gate electrode of a driving transistor; a compensation transistor connected to the scan line and including a compensation drain electrode connected to the initialization drain electrode; and an organic light emitting diode electrically connected to the driving transistor, wherein at least one of the initialization transistor and the compensation transistor includes a plurality of gate electrodes.
1. An organic light emitting diode display, comprising:
a substrate;
a scan line and a previous stage scan line on the substrate and configured to transmit scan signals;
a data line and a driving voltage line crossing the scan line and configured to transmit a data voltage and a driving voltage, respectively;
an initialization transistor connected to the previous stage scan line and the driving voltage line, and comprising an initialization drain electrode connected to a driving gate electrode of a driving transistor;
a compensation transistor connected to the scan line and comprising a compensation drain electrode connected to the initialization drain electrode; and
an organic light emitting diode electrically connected to the driving transistor,
wherein at least one of the initialization transistor and the compensation transistor comprises a plurality of gate electrodes,
wherein the initialization transistor comprises:
a first initialization transistor comprising a first initialization channel, a first initialization gate electrode, a first initialization source electrode, and a first initialization drain electrode; and
a second initialization transistor comprising a second initialization channel, a second initialization gate electrode, a second initialization source electrode, and a second initialization drain electrode,
a third initialization transistor comprising a third initialization channel, a third initialization gate electrode, a third initialization source electrode, and a third initialization drain electrode, and
a fourth initialization transistor comprising a fourth initialization channel, a fourth initialization gate electrode, a fourth initialization source electrode, and a fourth initialization drain electrode.
2. The organic light emitting diode display of claim 1 , wherein:
the initialization transistor further comprises:
a fifth initialization transistor comprising a fifth initialization channel, a fifth initialization gate electrode, a fifth initialization source electrode, and a fifth initialization drain electrode.
3. The organic light emitting diode display of claim 2 , wherein:
the compensation transistor comprises:
a first compensation transistor comprising a first compensation channel, a first compensation gate electrode, a first compensation source electrode, and a first compensation drain electrode; and
a second compensation transistor comprising a second compensation channel, a second compensation gate electrode, a second compensation source electrode, and a second compensation drain electrode.
4. The organic light emitting diode display of claim 3 , wherein:
the compensation transistor further comprises:
a third compensation transistor comprising a third compensation channel, a third compensation gate electrode, a third compensation source electrode, and a third compensation drain electrode.
5. The organic light emitting diode display of claim 1 , wherein:
the compensation transistor comprises:
a first compensation transistor comprising a first compensation channel, a first compensation gate electrode, a first compensation source electrode, and a first compensation drain electrode; and
a second compensation transistor comprising a second compensation channel, a second compensation gate electrode, a second compensation source electrode, and a second compensation drain electrode.
6. The organic light emitting diode display of claim 5 , wherein:
the compensation transistor further comprises:
a third compensation transistor comprising a third compensation channel, a third compensation gate electrode, a third compensation source electrode, and a third compensation drain electrode.
7. The organic light emitting diode display of claim 1 , wherein:
the compensation transistor comprises:
a first compensation transistor comprising a first compensation channel, a first compensation gate electrode, a first compensation source electrode, and a first compensation drain electrode; and
a second compensation transistor comprising a second compensation channel, a second compensation gate electrode, a second compensation source electrode, and a second compensation drain electrode.
8. The organic light emitting diode display of claim 7 , wherein:
the compensation transistor further comprises:
a third compensation transistor comprising a third compensation channel, a third compensation gate electrode, a third compensation source electrode, and a third compensation drain electrode.
9. The organic light emitting diode display of claim 1 , wherein:
the compensation transistor comprises:
a first compensation transistor comprising a first compensation channel, a first compensation gate electrode, a first compensation source electrode, and a first compensation drain electrode; and
a second compensation transistor comprising a second compensation channel, a second compensation gate electrode, a second compensation source electrode, and a second compensation drain electrode.
10. The organic light emitting diode display of claim 9 , wherein:
the compensation transistor further comprises:
a third compensation transistor comprising a third compensation channel, a third compensation gate electrode, a third compensation source electrode, and a third compensation drain electrode.
11. The organic light emitting diode display of claim 1 , wherein:
the organic light emitting diode display comprises a plurality of pixels, and
the plurality of pixels comprises:
a first pixel comprising an initialization transistor comprising two initialization gate electrodes, and a compensation transistor comprising two compensation gate electrodes;
a second pixel comprising an initialization transistor comprising three initialization gate electrodes, and a compensation transistor comprising two compensation gate electrodes; and
a third pixel comprising an initialization transistor comprising three initialization gate electrodes, and a compensation transistor comprising three compensation gate electrodes.
12. The organic light emitting diode display of claim 11 , wherein:
the plurality of pixels further comprises:
a fourth pixel comprising an initialization transistor comprising four initialization gate electrodes, and a compensation transistor comprising three compensation gate electrodes.
13. The organic light emitting diode display of claim 12 , wherein:
the plurality of pixels further comprises:
a fifth pixel comprising an initialization transistor comprising five initialization gate electrodes, and a compensation transistor comprising three compensation gate electrodes.
14. The organic light emitting diode display of claim 13 , wherein: the first pixel to the fifth pixel are disposed for every substrate position corresponding to a voltage drop of an initialization voltage.
15. The organic light emitting diode display of claim 11 , further comprising:
an initialization voltage line configured to transmit an initialization voltage through the initialization transistor to initialize the driving transistor.
16. The organic light emitting diode display of claim 15 , wherein: a width of the initialization voltage line varies according to a number of gate electrodes of the initialization transistor and the compensation transistor, or a position of a panel.
17. The organic light emitting diode display of claim 16 , wherein:
the width of the initialization voltage line increases as the number of gate electrodes is increased.