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US 8,575,628 B2Granted
Organic light emitting display
AssigneeSamsung Display Co., Ltd.
InventorsHyung-Soo Kim, Soon-Sung Ahn, Do-Ik Kim, Keum-Nam Kim
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Abstract
An organic light emitting display having first pixel power source lines receiving a pixel driving voltage from first power supply sources and second pixel power source lines arranged between the first pixel power source lines and receiving a pixel driving voltage from second power supply sources, the light emitting diode of each of a plurality of pixels included in an image display unit is divided into two, and the divided light emitting diodes are coupled to the different pixel power source lines so that brightness non-uniformity of the image display unit caused by the IR drops of the pixel power source lines is reduced or prevented.
Claims9
An organic light emitting display, comprising:
- an image display unit in which a plurality of pixels are arranged;
- first pixel power source lines and second pixel power source lines configured to transmit a first constant pixel driving voltage and a second constant pixel driving voltage, respectively, to the plurality of pixels;
- and
- a first power supply source and a second power supply source configured to provide the constant pixel driving voltages to the first pixel power source lines and the second pixel power source lines, respectively,
- wherein each of the plurality of pixels comprises a first light emitting diode and a second light emitting diode and a pixel circuit coupled to the first and second light emitting diodes, and
- wherein an anode of the first light emitting diode in each of the pixels is coupled to a corresponding first pixel power source line of the first pixel power source lines, and an anode of the second light emitting diode in each of the pixels is coupled to a corresponding second pixel power source line of the second pixel power source lines.
3 more elements
An organic light emitting display, comprising:
- an image display unit in which a plurality of pixels are arranged;
- first pixel power source lines and second pixel power source lines for transmitting pixel driving voltages to the plurality of pixels;
- and
- a first power supply source and a second power supply source for providing the pixel driving voltages to the first pixel power source lines and the second pixel power source lines, respectively,
- wherein each of the plurality of pixels comprises a first light emitting diode and a second light emitting diode and a pixel circuit coupled to the first and second light emitting diodes, and
- wherein the first light emitting diode in each of the pixels is coupled to a corresponding first pixel power source line of the first pixel power source lines, and the second light emitting diode in each of the pixels is coupled to a corresponding second pixel power source line of the second pixel power source lines,
- wherein the first pixel power source lines and the second pixel power source lines are extended in opposite directions, and
- wherein the first pixel power source lines are extended from an upper side to a lower side of the image display unit, and the second pixel power source lines are extended from the lower side to the upper side of the image display unit and are arranged among the first pixel power source lines.
5 more elements
An organic light emitting display, comprising:
- an image display unit in which a plurality of pixels are arranged;
- first pixel power source lines and second pixel power source lines for transmitting pixel driving voltages to the plurality of pixels;
- and
- a first power supply source and a second power supply source for providing the pixel driving voltages to the first pixel power source lines and the second pixel power source lines, respectively,
- wherein each of the plurality of pixels comprises a first light emitting diode and a second light emitting diode and a pixel circuit coupled to the first and second light emitting diodes,
- wherein the first light emitting diode in each of the pixels is coupled to a corresponding first pixel power source line of the first pixel power source lines, and the second light emitting diode in each of the pixels is coupled to a corresponding second pixel power source line of the second pixel power source lines, and
- wherein the pixel driving voltages provided by the first and second power supply sources are positive voltages of a same level.
4 more elements
An organic light emitting display, comprising:
- an image display unit in which a plurality of pixels are arranged;
- first pixel power source lines and second pixel power source lines for transmitting pixel driving voltages to the plurality of pixels;
- a first power supply source and a second power supply source for providing the pixel driving voltages to the first pixel power source lines and the second pixel power source lines, respectively;
- first and second auxiliary pixel power source lines arranged to extend in a direction crossing the first and second pixel power source lines,
- wherein each of the plurality of pixels comprises a first light emitting diode and a second light emitting diode and a pixel circuit coupled to the first and second light emitting diodes,
- wherein the first light emitting diode in each of the pixels is coupled to a corresponding first pixel power source line of the first pixel power source lines, and the second light emitting diode in each of the pixels is coupled to a corresponding second pixel power source line of the second pixel power source lines.
3 more elements
Dependencies are inferred from the claim text.