PIXEL
First Claim
1. A pixel comprising:
- an organic light emitting diode;
a first transistor coupled between a scan line and a data line, the first transistor supplying a data signal supplied to the data line to a first node when a scan signal is supplied to the scan line;
a storage capacitor coupled between the first node and a first power source, the storage capacitor charging a voltage corresponding to the data signal;
a load coupled between the organic light emitting diode and the first power source; and
an amplifier that controls a voltage applied to the load corresponding to the voltage charged in the storage capacitor.
1 Assignment
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Accused Products
Abstract
Disclosed is a pixel capable of finely controlling the amount of current and increasing the voltage range of a data signal. A pixel includes an organic light emitting diode, a first transistor, a storage capacitor, a load and an amplifier. The first transistor is coupled between a scan line and a data line, and supplies a data signal supplied to the data line to a first node when a scan signal is supplied to the scan line. The storage capacitor is coupled between the first node and a first power source, and charges a voltage corresponding to the data signal. The load is coupled between the organic light emitting diode and the first power source. The amplifier controls a voltage applied to the load corresponding to the voltage charged in the storage capacitor.
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Citations
17 Claims
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1. A pixel comprising:
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an organic light emitting diode; a first transistor coupled between a scan line and a data line, the first transistor supplying a data signal supplied to the data line to a first node when a scan signal is supplied to the scan line; a storage capacitor coupled between the first node and a first power source, the storage capacitor charging a voltage corresponding to the data signal; a load coupled between the organic light emitting diode and the first power source; and an amplifier that controls a voltage applied to the load corresponding to the voltage charged in the storage capacitor. - View Dependent Claims (2, 3, 4, 5)
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6. A pixel comprising:
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an organic light emitting diode; a storage capacitor coupled between a first node and a first power source; a first load coupled between the organic light emitting diode and the first power source; an amplifier that controls a voltage applied to the first load corresponding to the voltage applied to the first node; a bias circuit that controls the voltage applied to the first node corresponding to a data signal supplied from a data line; and a first transistor coupled between the bias circuit and the first node, the first transistor being turned on when a first scan signal is supplied to a first scan line, wherein the voltage applied to the first node is set to have a voltage range narrower than that of the data signal by the bias circuit. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A pixel comprising:
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an organic light emitting diode; a current source that generates current varied depending on a difference between a predetermined first voltage and a variable second voltage and supplies the generated current to the organic light emitting diode; and a bias circuit that outputs the second voltage depending on an input data voltage and controls a variable amplitude of the second voltage with respect to the amplitude of the input data voltage using a variable load. - View Dependent Claims (17)
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Specification