ORGANIC LIGHT EMITTING DIODE (OLED) DEVICE AND A METHOD OF FABRICATING THE SAME
First Claim
1. A color organic light emitting diode (OLED) device, comprising an OLED substrate, an OLED cover adhered to the OLED substrate and a color conversion layer formed on the OLED cover, wherein the OLED substrate has an OLED element formed thereon, the OLED element comprises a light emitting layer, the color conversion layer comprises a plurality of quantum dots, and light emitting from the light emitting layer is converted to colorized light with the plurality of quantum dots.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides a color OLED device and method of fabricating the same. The color OLED device includes an OLED substrate, an OLED cover adhered to the OLED substrate and a color conversion layer formed on the OLED cover. The OLED substrate includes an OLED element formed thereon, and the OLED element includes a light emitting layer. The color conversion layer includes a plurality of quantum dots, light emitting from the light emitting layer is converted to colored light with the plurality of quantum dots in the color conversion layer. According to present invention, a color OLED device can be colorized with the plurality of quantum dots in the color conversion layer; moreover, with the characteristics of the plurality of quantum dots, a thickness of the color OLED device including the light emitting layer can be shrunken, lifetime, and color purity thereof can be enhanced.
-
Citations
14 Claims
- 1. A color organic light emitting diode (OLED) device, comprising an OLED substrate, an OLED cover adhered to the OLED substrate and a color conversion layer formed on the OLED cover, wherein the OLED substrate has an OLED element formed thereon, the OLED element comprises a light emitting layer, the color conversion layer comprises a plurality of quantum dots, and light emitting from the light emitting layer is converted to colorized light with the plurality of quantum dots.
-
10. A color OLED device, comprising an OLED substrate, an OLED cover adhered to the OLED substrate and a color conversion layer formed on the OLED cover, wherein the OLED substrate has an OLED element formed thereon, the OLED element comprises a light emitting layer, the color conversion layer comprises a plurality of quantum dots, and light emitting from the light emitting layer is converted to colorized light with the plurality of quantum dots;
-
the light emitting layer is a blue light emitting layer, the color conversion layer comprises green quantum dots, red quantum dots and blank units disposed in intervals, blue light emitting from the light emitting layer is respectively converted to green light with the green quantum dots, red light with the red quantum dots and still the blue light with the blank units in the color conversion layer; the light emitting layer comprises a blue light emitting material formed by thermal evaporation of polyfluorene, 4,4′
-bis(2,2-diphenyl vinyl)biphenyl or bis(2,4-difluorophenyl pyridyl)-tetra(1-pyrazolyl)borate iridium; andthe light emitting layer further comprises a host organic blue light material layer formed by thermal evaporation of 4,4′
,4″
-tris(carbazol-9-yl)triphenylamine or 2,4,6-(9H-carbazol-9-yl)-1,3,5-triazine. - View Dependent Claims (11, 12, 13)
-
-
14. A method of fabricating a color OLED device, comprising steps as follows:
-
step 1, providing an OLED substrate; step 2, forming an anode on the OLED substrate; step 3, forming a thin film transistor (TFT) array on the anode; step 4, sequentially forming a hole injection layer and a hole transport layer on the TFT array; step 5, forming a light emitting layer on the hole transport layer, wherein the light emitting layer is a blue light emitting layer or a white light emitting layer; step 6, sequentially forming an electron transport layer and a cathode on the light emitting layer; step 7, providing an OLED cover, and adhering the OLED cover to the OLED substrate with a sealant; step 8, forming a color conversion layer on the OLED cover, and forming a protection layer on the color conversion layer so that the color OLED device is formed, wherein the color conversion layer comprises a plurality of quantum dots, and light emitting from the light emitting layer is converted to colorized light with the plurality of quantum dots; in case of the light emitting layer being the blue light emitting layer, the color conversion layer comprises green light quantum dots, red light quantum dots and blank units disposed in intervals, wherein blue light emitting from the light emitting layer is respectively converted to green light with the green light quantum dots, red light with the red light quantum dots and still the blue light with the blank units in transmitting the color conversion layer; and in case of the light emitting layer being the white light emitting layer, the color conversion layer comprises green light quantum dots, red light quantum dots and blue light quantum dots disposed in intervals, wherein white light emitting from the light emitting layer is respectively converted to green light with the green light quantum dots, red light with the red light quantum dots and blue light with the blue light quantum dots in transmitting the color conversion layer.
-
Specification