NOVEL OLED DISPLAY ARCHITECTURE
First Claim
1. A device comprising a quad pixel, the quad pixel comprising:
- a first OLED, a second OLED, a third OLED and a fourth OLED, each OLED independently having;
a first electrode;
a second electrode;
an organic emissive stack having an emitting material, disposed between the first and second electrodes;
a first organic stack disposed between and in contact with the first electrode and the organic emissive stack;
a second organic stack disposed between and in contact with the second electrode and the organic emissive stack;
wherein;
the organic emissive stack of the first OLED, the organic emissive stack of the second OLED, the organic emissive stack of the third OLED, and the organic emissive stack of the fourth OLED each have different emissive spectra;
the first organic stack of the first OLED, the first organic stack of the second OLED, and the first organic stack of the third OLED are different from each other in materials or thickness, or both; and
the first organic stack of the third OLED and the first organic stack of the fourth OLED are the same.
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Accused Products
Abstract
A quad pixel device is provided. Each pixel is an organic light emitting device (OLED), such that there is a first, second, third and fourth OLED. Each of the first, second, third and fourth OLEDs independently has a first electrode and a second electrode. Each OLED also independently has an organic emissive stack having an emitting material, disposed between the first and second electrodes; a first organic stack disposed between and in contact with the first electrode and the emissive stack; and a second organic stack disposed between and in contact with the second electrode and the emissive layer. The organic emissive stack of the first OLED, the organic emissive stack of the second OLED, the organic emissive stack of the third OLED, and the organic emissive stack of the fourth OLED each have different emissive spectra. The first organic stack of the first OLED, the first organic stack of the second OLED, and the first organic stack of the third OLED are different from each other in materials or thickness, or both. The first organic stack of the third OLED and the first organic stack of the fourth OLED are the same.
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Citations
35 Claims
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1. A device comprising a quad pixel, the quad pixel comprising:
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a first OLED, a second OLED, a third OLED and a fourth OLED, each OLED independently having; a first electrode; a second electrode; an organic emissive stack having an emitting material, disposed between the first and second electrodes; a first organic stack disposed between and in contact with the first electrode and the organic emissive stack; a second organic stack disposed between and in contact with the second electrode and the organic emissive stack; wherein; the organic emissive stack of the first OLED, the organic emissive stack of the second OLED, the organic emissive stack of the third OLED, and the organic emissive stack of the fourth OLED each have different emissive spectra; the first organic stack of the first OLED, the first organic stack of the second OLED, and the first organic stack of the third OLED are different from each other in materials or thickness, or both; and the first organic stack of the third OLED and the first organic stack of the fourth OLED are the same. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of depositing a device comprising a quad pixel:
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the quad pixel comprising; a first OLED, a second OLED, a third OLED and a fourth OLED, each OLED independently having; an area of a substrate over which the OLED is disposed; a first electrode; a second electrode; an organic emissive stack having an emitting material, disposed between the first and second electrodes; a first organic stack disposed between and in contact with the first electrode and the emissive layer; a second organic stack disposed between and in contact with the second electrode and the emissive layer; wherein; the organic emissive stack of the first OLED, the organic emissive stack of the second OLED, the organic emissive stack of the third OLED, and the organic emissive stack of the fourth OLED each have different emissive spectra; the first organic stack of the first OLED, the first organic stack of the second OLED, and the first organic stack of the third OLED are different from each other in materials or thickness or both; the method comprising; depositing each component of the first organic stack of the third OLED at the same time as the same component in the first organic stack of the fourth OLED. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
wherein the method further comprises; providing over the substrate the first electrode of each of the first, second, third and fourth OLEDs; for each of the first, second, third and fourth OLEDs, depositing over the first electrode a first organic stack; for each of the first, second, third and fourth OLEDs, depositing over the first organic stack an emissive stack; for each of the first, second, third and fourth OLEDs, depositing over the emissive stack a second organic stack; for each of the first, second, third and fourth OLEDs, depositing over the second organic stack a second electrode.
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29. The method of claim 28, wherein depositing the first organic stack includes, for each of the first, second, third and fourth OLEDs, depositing in order:
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a hole injection layer; and a hole transport layer; wherein the hole injection layer for each of the first, second, third and fourth OLEDs are deposited at the same time, and wherein multiple steps and different masks are used to deposit hole transport layers that are different for the first, second and third OLEDs, and wherein the hole transport layers of the third and fourth OLEDs are deposited at the same time.
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30. The method of claim 29, wherein the emissive stack of each of the first, second, third and fourth OLEDs is deposited through a different mask and have different material compositions.
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31. The method of claim 30, wherein the emissive stack of at least one of the first, second, third and fourth OLEDs includes an emissive layer having a host and a dopant, and a blocking layer having the host and not the dopant.
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32. The method of claim 31, wherein depositing the second organic stack includes, for each of the first, second, third and fourth OLEDs, depositing in order:
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an electron transport layer; and an electron injection layer; wherein the electron injection layer for each of the first, second, third and fourth OLEDs are deposited at the same time, and wherein the electron transport layers for each of the first, second, third and fourth OLEDs are deposited at the same time.
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33. The method of claim 30, wherein each layer of the second organic stack of each of the first, second, third and fourth OLEDs is deposited at the same time through the same mask.
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34. The method of claim 30, wherein deposition of the second organic stack includes depositing an electron transport layer.
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35. The method of claim 30, wherein depositing the second organic stack includes, for each of the first, second, third and fourth OLEDs, depositing in order:
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a blocking layer; an electron transport layer; and an electron injection layer; wherein the blocking layer for each of the first, second, third and fourth OLEDs are deposited at the same time, and the electron injection layer for each of the first, second, third and fourth OLEDs are deposited at the same time, and wherein multiple steps and different masks are used to deposit electron transport layers that are different for the first, second and third OLEDs, and wherein the electron transport layers of the third and fourth OLEDs are deposited at the same time.
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Specification