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US 9,437,135 B2Granted
Pixel and organic light emitting display using the same
AssigneeSamsung Display Co., Ltd.
InventorsSoon-Dong Kim, Hyung-Ryul Kang
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Abstract
A pixel and an organic light emitting display, the pixel including an organic light emitting diode, a first driver, and a second driver. The first driver controls whether current is supplied to the organic light emitting diode, according to a first data signal from a first data line. The second driver controls whether current is supplied to the organic light emitting diode, according to a second data signal from a second data line.
Claims18
A pixel, comprising:
- an organic light emitting diode;
- a first driver configured to selectively supply a first current to the organic light emitting diode based on a first data signal received from a first data line;
- and
- a second driver configured to selectively supply a second current to the organic light emitting diode based on a second data signal received from a second data line,
- wherein each of the first and second drivers comprises:
- a first transistor coupled between a first power source and the organic light emitting diode, the first transistor configured to supply a driving current to the organic light emitting diode while being driven in a saturation region corresponding to a bias voltage,
- a second transistor disposed on a current path along which the driving current flows, the second transistor configured to turn on or off based on at least one of the first data signal and the second data signal, and
- a first capacitor coupled between a gate electrode of the second transistor and the first power source.
5 more elements
An organic light emitting display, comprising:
- pixels disposed in an area at least partially defined by scan lines, first data lines, and second data lines;
- and
- a bias power supply unit configured to supply a bias voltage to the pixels,
- wherein each pixel comprises:
- an organic light emitting diode;
- a first driver configured to selectively supply a first current supplied to the organic light emitting diode based on a first data signal received from a first data line;
- and
- a second driver configured to selectively supply a second current to the organic light emitting diode based on a second data signal received from a second data line,
- wherein each of the first and second drivers comprises:
- a first transistor coupled between a first power source and the organic light emitting diode, the first transistor configured to supply a driving current to the organic light emitting diode while being driven in a saturation region corresponding to the bias voltage;
- a second transistor positioned on a current path along which the driving current flows, the second transistor configured to turn on or off based on at least one of the first data signal and the second data signal;
- and
- a first capacitor coupled between a gate electrode of the second transistor and the first power source.
10 more elements
Dependencies are inferred from the claim text.