Organic light emitting display device and method of manufacturing the same
First Claim
1. A light emitting display device comprising:
- a first substrate having a first interior surface;
an array of light emitting units formed on the first interior surface, the array having a top surface facing away from the first substrate;
a second substrate placed over the first substrate and the array, the second substrate having a second interior surface, which faces the first substrate; and
a desiccant layer placed between the first and second substrates, the desiccant layer comprising a desiccant, a binder, a selective light absorber, and at least one of a metal oxide and a metal salt, wherein the at least one of the metal oxide and the metal salt is in a particulate form having an average particle diameter of about 100 nm or less, and wherein the desiccant layer is substantially transparent with respect to visible light.
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Accused Products
Abstract
Provided are an organic light emitting display device including a transparent moisture absorption layer formed of at least one of a metal oxide and metal salt having an average particle diameter of 100 nm or less, a binder, and a selective light absorber absorbing light of a wavelength of a specific range, and a method of manufacturing the same. The transparent absorbing layer further contains a dispersant. The organic light emitting display device including the transparent moisture absorption layer has an excellent moisture absorption capability compared to a conventional organic light emitting display device including a getter, and is transparent. Therefore, the organic light emitting display device has desired lifetime characteristics and improved color purity and contrast characteristics.
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Citations
22 Claims
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1. A light emitting display device comprising:
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a first substrate having a first interior surface;
an array of light emitting units formed on the first interior surface, the array having a top surface facing away from the first substrate;
a second substrate placed over the first substrate and the array, the second substrate having a second interior surface, which faces the first substrate; and
a desiccant layer placed between the first and second substrates, the desiccant layer comprising a desiccant, a binder, a selective light absorber, and at least one of a metal oxide and a metal salt, wherein the at least one of the metal oxide and the metal salt is in a particulate form having an average particle diameter of about 100 nm or less, and wherein the desiccant layer is substantially transparent with respect to visible light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of manufacturing a light emitting display device, the method comprising:
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providing a first substrate having a first interior surface;
forming an array of organic light emitting units on the first interior surface, the array having a top surface facing away from the first substrate;
placing a second substrate over the first substrate and the array, the second substrate having a second interior surface, which faces the first substrate;
interconnecting the first and second substrates with a plurality of side walls, thereby forming an enclosed space; and
prior to interconnecting, forming a desiccant layer in a place to be enclosed within the enclosed space, the desiccant layer comprising a desiccant, a binder, a selective light absorber, and at least one of a metal oxide and a metal salt, wherein the at least one of the metal oxide and the metal salt is in a particulate form having an average particle diameter of about 100 nm or less, and wherein the desiccant layer is substantially transparent with respect to visible light. - View Dependent Claims (19)
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20. A method of displaying a visable image, comprising:
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providing a light emitting display device comprising;
a first substrate having a first interior surface, an array of light emitting units formed on the first interior surface, the array having a top surface facing away from the first substrate, a second substrate placed over the first substrate and the array, the second substrate having a second interior surface, which faces the first substrate, and a desiccant layer placed between the first and second substrates, the desiccant layer comprising a desiccant, a binder, a selective light absorber, and at least one of a metal oxide and a metal salt, wherein the at least one of the metal oxide and the metal salt is in a particulate form having an average particle diameter of about 100 nm or less, and wherein the desiccant layer is substantially transparent with respect to visible light; and
stimulating the device to emit visible light from at least part of the light emitting units, thereby displaying a visible image on at least one of the first and second substrates. - View Dependent Claims (21, 22)
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Specification