Display device, CMOS operational amplifier, and driving method of display device
First Claim
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1. An organic electro-luminescence display device comprising:
- a display unit having a plurality of pixels and a plurality of driving lines for driving the plurality of pixels;
a driving circuit which drives the plurality of pixels through the plurality of driving lines, the driving lines being selectively connectable to an output of the driving circuit; and
a control unit which adjusts a driving capability of the driving circuit according to the number of simultaneously driven driving lines of the driving circuit, the driving capability being an amount of power available to drive the pixels.
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Abstract
A display device including a display unit which has a plurality of pixels and a plurality of driving lines for driving the plurality of pixels; a driving circuit which drives the plurality of pixels through the plurality of driving lines; and a control unit which adjusts a driving capability of the driving circuit according to the number of simultaneous driving lines of the driving circuit.
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Citations
9 Claims
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1. An organic electro-luminescence display device comprising:
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a display unit having a plurality of pixels and a plurality of driving lines for driving the plurality of pixels; a driving circuit which drives the plurality of pixels through the plurality of driving lines, the driving lines being selectively connectable to an output of the driving circuit; and a control unit which adjusts a driving capability of the driving circuit according to the number of simultaneously driven driving lines of the driving circuit, the driving capability being an amount of power available to drive the pixels. - View Dependent Claims (2)
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3. An organic electro-luminescence display device comprising:
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a display unit having a plurality of pixels and a plurality of driving lines for driving the plurality of pixels; a driving circuit which drives the plurality of pixels through the plurality of driving lines; and a control unit which adjusts a driving capability of the driving circuit according to the number of simultaneously driven driving lines of the driving circuit, wherein; the driving circuit includes a CMOS operational amplification circuit, the CMOS operational amplification circuit includes (a) an output stage of a push-pull type output circuit which is configured by a source current output transistor supplying a current to an output terminal, and (b) a sink current output transistor for pulling a current from the output terminal, and the control unit is configured to the driving capability of the driving circuit by adjusting size corresponding values of the source current output transistor and the sink current output transistor. - View Dependent Claims (4, 5, 6)
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7. An organic electro-luminescence display device comprising:
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a display unit having a plurality of pixels and a plurality of driving lines for driving the plurality of pixels; a control circuit; and a driving circuit controlled by the control circuit for driving the plurality of driving lines, wherein the driving circuit includes a CMOS operational amplifier with an output selectively connectable to one or more of the driving lines, any number of which can be simultaneously connected to the output of the CMOS operational amplifier.
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8. An organic electro-luminescence display device comprising:
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a display unit having a plurality of pixels and a plurality of driving lines for driving the plurality of pixels; and a driving circuit for driving the plurality of driving lines, wherein the driving circuit includes a CMOS operational amplifier, wherein the CMOS operational amplifier comprises; an output stage of a push-pull type output circuit which is configured by a source current output transistor supplying a current to an output terminal; a sink current output transistor pulling a current from the output terminal; and an adjustment circuit which adjusts size corresponding values of the source current output transistor and the sink current output transistor.
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9. A control method of an organic electro-luminescence display device that includes a display unit which has a plurality of pixels and a plurality of driving lines for driving the plurality of pixels, and a driving circuit which drives the plurality of pixels through the plurality of driving lines, the method comprising:
- adjusting a driving capability of the driving circuit according to the number of simultaneously driven driving lines of the driving circuit, the driving capability being an amount of power available to drive the pixels.
Specification