Organic light emitting diode device
First Claim
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1. An organic light emitting diode device, comprising:
- an anode;
a cathode facing the anode; and
a light emitting member between the anode and cathode;
wherein the light emitting member includes;
at least two light emitting units displaying the same or different color as one another, anda charge-generation layer between the at least two light emitting units, the charge-generation layer including a first charge-generation layer and a second charge-generation layer that each are formed from an undoped material, andwherein;
the first charge-generation layer has an ionization energy that is about the same as or less than an electron affinity of the second charge-generation layer, andthe first charge-generation layer includes a metal-substituted tetra(hexahydropyrimidopyrimidine).
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Abstract
An organic light emitting diode device including an anode, a cathode facing the anode, and a light emitting member between the anode and cathode, wherein the light emitting member includes at least two light emitting units displaying the same or different color as one another, and a charge-generation layer between the at least two light emitting units, the charge-generation layer including a first charge-generation layer and a second charge-generation layer that each include an undoped material, and wherein the first charge-generation layer has an ionization energy that is about the same as or less than an electron affinity of the second charge-generation layer.
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Citations
18 Claims
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1. An organic light emitting diode device, comprising:
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an anode; a cathode facing the anode; and a light emitting member between the anode and cathode; wherein the light emitting member includes; at least two light emitting units displaying the same or different color as one another, and a charge-generation layer between the at least two light emitting units, the charge-generation layer including a first charge-generation layer and a second charge-generation layer that each are formed from an undoped material, and wherein; the first charge-generation layer has an ionization energy that is about the same as or less than an electron affinity of the second charge-generation layer, and the first charge-generation layer includes a metal-substituted tetra(hexahydropyrimidopyrimidine). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification