Electroluminescent display
View Patent ↗An electroluminescent display includes: a pixel region including devices arranged therein and adapted to emit light in response to a data signal; a scan driver adapted to supply a switching signal to a gate electrode of a first switching device; a data driver adapted to supply data information to a source electrode of the first switching device; a conductive power supply line adapted to supply a first power supply voltage to the pixel region, and an electromagnetic shield adapted to shield electromagnetic waves having electric or magnetic field characteristics. The electromagnetic shield is adapted to generate a second power supply voltage having a polarity opposite to that of the first power supply voltage.
1. An electroluminescent display comprising:
a pixel region including devices arranged therein and adapted to emit light in response to a data signal;
a scan driver adapted to supply a switching signal to a gate electrode of a first switching device;
a data driver adapted to supply data information to a source electrode of the first switching device;
a conductive power supply line adapted to supply a first DC power supply voltage to the pixel region,
an electromagnetic shield adapted to shield electromagnetic waves having electric and magnetic field characteristics; and
a shielding voltage generator adapted to supply a voltage to the electromagnetic shield.
2. The electroluminescent display of claim 1 , wherein the electromagnetic shield is adapted to generate a second DC power supply voltage.
3. The electroluminescent display of claim 2 , wherein the second power supply voltage has a polarity opposite to that of the first DC power supply voltage.
4. The electroluminescent display of claim 2 , wherein the electromagnetic shield comprises a conductive interconnection line arranged in parallel with the first DC power supply voltage line.
5. An electroluminescent display comprising:
a pixel region including devices arranged therein and adapted to emit light in response to a data signal;
a scan driver adapted to supply a switching signal to a gate electrode of a first switching device;
a data driver adapted to supply data information to a source electrode of the first switching device;
a conductive power supply line adapted to supply a first DC power supply voltage to the pixel region;
at least one metal line arranged in parallel with the first DC power supply voltage line and adapted to shield electromagnetic waves having electric and magnetic field characteristics; and
a shielding voltage generator adapted to supply a voltage to the at least one metal line.
6. The electroluminescent display of claim 5 , wherein the at least one metal line is arranged inside the first DC power supply voltage line.
7. The electroluminescent display of claim 5 , wherein the at least one metal line is arranged outside the first DC power supply voltage line.
8. The electroluminescent display of claim 5 , wherein the at least one metal line comprises metal lines respectively arranged inside and outside the first DC power supply voltage line.
9. The electroluminescent display of claim 5 , wherein the shielding voltage generator is adapted to supply a second DC power supply voltage having a polarity opposite to that of the first DC power supply voltage to the at least one metal line.
10. An electroluminescent display comprising:
a pixel region including devices arranged therein and adapted to emit light in response to a data signal;
a scan driver adapted to supply a switching signal to a gate electrode of a first switching device;
a data driver adapted to supply data information to a source electrode of the first switching device;
a conductive power supply line adapted to supply a first DC power supply voltage to the pixel region, and
a metal line arranged parallel with the first DC power supply voltage line and adapted to be connected to a ground terminal, the metal line adapted to shield electromagnetic waves having electric and magnetic field characteristics.