Organic electroluminescent device having backup driving unit
First Claim
1. An organic electroluminescent device, comprising:
- a gate line and a data line formed over a substrate, the gate and data lines perpendicularly crossing each other and defining a pixel therebetween;
a first driving unit formed in the pixel and comprised of a first switching TFT and a first driving TFT;
a power line delivering a current signal to the first driving TFT;
an organic electroluminescent diode contacting the first driving TFT and receiving the current signal from the first driving TFT; and
a second driving unit formed in the pixel and comprised of a second switching TFT and a second driving TFT, the second driving unit being a backup circuit that can deliver the current signal from the power line to the organic electroluminescent diode when the first driving unit malfunctions.
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Abstract
An organic electroluminescent device of the present invention includes: a gate line and a data line formed over a substrate, the gate and data lines perpendicularly crossing each other and defining a pixel therebetween; a first driving unit formed in the pixel and comprised of a first switching TFT and a first driving TFT; a power line delivering a current signal to the first driving TFT; an organic electroluminescent diode contacting the first driving TFT and receiving the current signal from the first driving TFT; and a second driving unit formed in the pixel and comprised of a second switching TFT and a second driving TFT, the second driving unit being a backup circuit that can deliver the current signal from the power line to the organic electroluminescent diode when the first driving unit malfunctions.
24 Citations
26 Claims
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1. An organic electroluminescent device, comprising:
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a gate line and a data line formed over a substrate, the gate and data lines perpendicularly crossing each other and defining a pixel therebetween;
a first driving unit formed in the pixel and comprised of a first switching TFT and a first driving TFT;
a power line delivering a current signal to the first driving TFT;
an organic electroluminescent diode contacting the first driving TFT and receiving the current signal from the first driving TFT; and
a second driving unit formed in the pixel and comprised of a second switching TFT and a second driving TFT, the second driving unit being a backup circuit that can deliver the current signal from the power line to the organic electroluminescent diode when the first driving unit malfunctions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An organic electroluminescent device, comprising:
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a gate line and a data line formed over a substrate, the gate and data lines perpendicularly crossing each other and defining a pixel therebetween;
a first driving unit formed in the pixel and comprised of first and second switching TFTs and first and second driving TFTs;
a power line delivering a current signal to the first driving TFT;
an organic electroluminescent diode contacting the first driving TFT and receiving the current signal from the first driving TFT; and
a second driving unit formed in the pixel and comprised of third and fourth switching TFTs and third and fourth driving TFTs, the second driving unit being a backup circuit that can deliver the current signal from the power line to the organic electroluminescent diode when the first driving unit malfunctions. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification