| CPC G09G 3/32 (2013.01) [G09G 3/3208 (2013.01); G09G 3/3233 (2013.01); G09G 3/3258 (2013.01); G09G 3/3266 (2013.01); G09G 3/3275 (2013.01); G09G 2300/08 (2013.01); G09G 2300/0819 (2013.01); G09G 2310/0251 (2013.01); G09G 2310/08 (2013.01); G09G 2330/028 (2013.01)] | 14 Claims |
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1. An electroluminescent display comprising:
a light emitting element; and
a pixel driving circuit configured to apply a driving current to the light emitting element,
wherein the pixel driving circuit includes:
a first transistor connected to first, second and third nodes;
a second transistor connected between the third node and the second node;
a third transistor connected between the first node and a data line;
a fourth transistor connected between the first node and a first driving voltage line;
a fifth transistor connected between the second node and a fourth node;
a sixth transistor connected between the first transistor and an on bias stress (OBS) voltage line;
a seventh transistor connected between the fourth node and a reset voltage line, and
a storage capacitor disposed between the first driving voltage line and the third node,
wherein the pixel driving circuit includes a first initialization period, a programming period, an OBS period, a light emission period, and a second initialization period between the OBS period and the light emission period,
wherein during the first initialization period and the second initialization period, the sixth transistor is turned on to apply a low voltage of the OBS voltage line, and
wherein during the OBS period, the sixth transistor is turned on to apply a high voltage of the OBS voltage line.
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