An organic electroluminescent device
An electroluminescence device and luminescence technology, applied in the direction of electric solid-state devices, electrical components, semiconductor devices, etc., can solve the problems of increasing the cost of OLED devices and affecting the appearance of OLED devices, so as to improve the ability to absorb high-energy light and improve Reliability and service life, the effect of increasing the application space
Active Publication Date: 2020-06-09
GUAN YEOLIGHT TECH CO LTD
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Problems solved by technology
[0005] The above-mentioned design of blocking high-energy light sources affects the aesthetics of OLED devices to a certain extent, and increases the cost of OLED devices
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[0030] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0031] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0032] Please refer to figure 1 It is a schematic structural diagram of an embodiment of an organic electroluminescent device of the present application, including a substrate 10, a first electrode 20, an organic layer, a second electrode 60 and a packaging structure (not shown in the figure) stac...
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Abstract
The present application discloses an organic electroluminescent device, comprising a substrate, a first electrode, an organic layer, a second electrode and an encapsulation structure arranged in sequence; the organic layer includes a light-emitting layer, a hole transport functional layer located on both sides of the light-emitting layer, and An electron transport functional layer; a UV sacrificial layer is arranged between the electrode corresponding to the light-emitting surface of the light-emitting device and the light-emitting layer, and the UV sacrificial layer contains a light-absorbing material; a second layer for avoiding electroluminescence is arranged between the UV sacrificial layer and the light-emitting layer. An additional functional layer. In this application, by setting a UV sacrificial layer inside the light-emitting device, the OLED device has the ability to resist high-energy light in essence, thereby greatly improving the reliability and service life of OLED-related products, and also increasing the application space.
Description
technical field [0001] The present disclosure relates generally to the field of lighting, and in particular to the field of OLED lighting. Background technique [0002] OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) refers to the phenomenon that organic semiconductor materials and luminescent materials are driven by an electric field to cause light emission through carrier injection and recombination. The principle is to use a transparent / semitransparent metal / metal oxide electrode and a metal / metal oxide electrode as the anode and cathode of the device, respectively. Driven by an external electric field, carriers (electrons and holes) are injected from the cathode and anode to the Electron and hole transport functional layer, electrons and holes are respectively transferred to the light-emitting layer through the electron and hole transport functional layer, and form excitons (exciton) in the light-emitting material, after the electron-hole recombination ...
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IPC IPC(8): H01L51/50
CPCH10K50/171H10K50/18H10K50/16H10K50/15H10K50/17
Inventor 李育豪王君于倩倩谢静朱映光郭立雪胡永岚
Owner GUAN YEOLIGHT TECH CO LTD