1. An electroluminescent display device comprising:
a plurality of pixels;
a pixel selecting transistor provided for each of the pixels;
an electroluminescent element provided for each of the pixels; and
a driving transistor provided for each of the pixels and driving a corresponding electroluminescent element in response to a display signal supplied through a corresponding pixel selecting transistor,
wherein the driving transistor is split into a plurality of driving transistors, and the electroluminescent element is split into a plurality of electroluminescent elements.
2. The electroluminescent display device of claim 1, wherein the number of the split driving transistors in a pixel is equal to the number of the split electroluminescent elements in the same pixel.
3. The electroluminescent display device of claim 1, wherein an anode of the electroluminescent element is split into a plurality of anodes, and the number of the split anodes in a pixel is equal to the number of the split driving transistors in the same pixel.
4. The electroluminescent display device of claim 1, wherein the number of the split driving transistors in a pixel is four.
5. The electroluminescent display device of claim 3, wherein the number of the split driving transistors in a pixel is four.
6. An electroluminescent display device comprising:
a pixel;
a pixel selecting transistor disposed in the pixel;
a plurality of electroluminescent elements disposed in the pixel; and
a plurality of driving transistors disposed in the pixel and driving the electroluminescent elements in response to a display signal supplied through the pixel selecting transistor,
wherein gates of the driving transistors are connected to a source of the pixel selecting transistor, sources of the driving transistors are connected to a power source, and drains of the driving transistors are connected to respective electroluminescent elements.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A measuring device, comprising:
at least one resonator having a resonance frequency of more than 1 MHz, the resonator comprising two electrodes configured to generate a spark during an ignition command;
a first circuit that supplies a microwave ignition, comprising a transformer, a secondary winding of which is connected to the resonator;
a measurement capacitor, connected in series between the secondary winding and the resonator;
a second circuit that measures ionization current of gases in combustion in a cylinder of an internal combustion engine associated with the resonator, the second circuit being connected to terminals of the measurement capacitor; and
a third circuit that measures the voltage at the terminals of the measurement capacitor, the voltage at the terminals of the measurement capacitor being proportional to the voltage at terminals of the electrodes of the resonator during an ignition command, and the third circuit comprises a circuit for rectifying a peak voltage at the terminals of the measurement capacitor.
2. The device as claimed in claim 1, wherein the measurement capacitor is connected in series between the secondary winding of the transformer and the resonator at a ground return wire of the transformer and of the resonator.
3. The device as claimed in claim 1, further comprising a damping resistor connected in parallel with a primary winding of the transformer.
4. The device as claimed in claim 1, wherein the second circuit for measuring the ionization current comprises a circuit differentiating the potential difference between the terminals of the measurement capacitor.
5. The device as claimed in claim 1, wherein a primary winding of the transformer is connected on a first side to a power supply voltage and on a second side to a drain of at least one switching transistor controlled by a command signal, the switching transistor applying the power supply voltage to the terminals of the primary winding at a frequency defined by the command signal.
6. The device as claimed in claim 1, wherein the transformer comprises a transformation ratio of between 1 and 5.
7. A measuring device, comprising:
at least one resonator having a resonance frequency of more than 1 MHz, the resonator comprising two electrodes configured to generate a spark during an ignition command;
a first circuit that supplies a microwave ignition, comprising a transformer, a secondary winding of which is connected to the resonator;
a measurement capacitor, connected in series between the secondary winding and the resonator;
a second circuit that measures ionization current of gases in combustion in a cylinder of an internal combustion engine associated with the resonator, the second circuit being connected to terminals of the measurement capacitor;
a third circuit that measures the voltage at the terminals of the measurement capacitor, the voltage at the terminals of the measurement capacitor being proportional to the voltage at terminals of the electrodes of the resonator during an ignition command; and
a direct current power supply connected to a foot of the secondary winding of the transformer.
8. The device as claimed in claim 7, wherein the measurement capacitor is connected in series between the secondary winding of the transformer and the resonator at a ground return wire of the transformer and of the resonator.
9. The device as claimed in claim 7, further comprising a damping resistor connected in parallel with a primary winding of the transformer.
10. The device as claimed in claim 7, wherein the second circuit for measuring the ionization current comprises a circuit differentiating the potential difference between the terminals of the measurement capacitor.
11. The device as claimed in claim 7, wherein a primary winding of the transformer is connected on a first side to a power supply voltage and on a second side to a drain of at least one switching transistor controlled by a command signal, the switching transistor applying the power supply voltage to the terminals of the primary winding at a frequency defined by the command signal.
12. The device as claimed in claim 7, wherein the transformer comprises a transformation ratio of between 1 and 5.