Organic light-emitting device packaging structure and packaging method thereof
A technology of electroluminescent devices and packaging structures, which is applied in organic light-emitting device structures, organic light-emitting devices, organic semiconductor devices, etc., and can solve the problem that the barrier performance of plastic substrates cannot meet the requirements of OLED packaging, and the life of flexible organic electroluminescent devices is short , There are many defects in the film structure of the device, etc., to achieve excellent packaging effect, benefit the life of the device, and reduce the effect of erosion
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[0039] Example 1
[0040] figure 1 It is a schematic diagram of the packaging structure of an organic electroluminescent device provided in this embodiment. Such as figure 1 As shown, the packaging structure of the organic electroluminescent device is provided with a conductive glass substrate 10, an organic light-emitting function layer 20, a metal cathode 30, and a packaging layer 40 in order from bottom to top. Wherein, the organic light-emitting functional layer 20 includes a hole injection layer 21, a hole transport layer 22, a light emitting layer 23, an electron transport layer 24, and an electron injection layer 25 stacked in sequence from bottom to top. figure 2 Yes figure 1 Schematic diagram of the component structure of the encapsulation layer, such as figure 2 As shown, the packaging layer 40 includes a germanium oxycarbide layer 41, a first barrier layer 42 and a second barrier layer 43 stacked on the metal cathode 30 in sequence. More specifically, the encapsula...
Example Embodiment
[0055] Example 2
[0056] An organic electroluminescent device packaging structure, which includes a conductive glass substrate, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, a metal cathode, and an encapsulation layer from bottom to top. The encapsulation layer is composed of 4 layers of carbon oxide germanium / Al 2 O 3 :Cl layer / ZrO 2 : Multi-layer composite membrane structure composed of Cl layer. The preparation method is as follows:
[0057] (1) ITO glass substrate pre-treatment: ITO glass substrate is cleaned with acetone, ethanol, deionized water, and ethanol, all of which are cleaned with an ultrasonic cleaning machine, and the single washing is cleaned for 5 minutes, then dried with nitrogen, and dried in an oven To be used; the cleaned ITO glass needs to be subjected to surface activation treatment to increase the oxygen content of the conductive surface layer and improve the work function...
Example Embodiment
[0070] Example 3
[0071] An organic electroluminescent device packaging structure, which includes a conductive glass substrate, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, a metal cathode, and an encapsulation layer from bottom to top. The encapsulation layer is composed of 3 layers of carbon oxide germanium / Ga 2 O 3 :Cl layer / HfO 2 : Multi-layer composite membrane structure composed of Cl layer. The preparation method is as follows:
[0072] (1) ITO glass substrate pre-treatment: ITO glass substrate is cleaned with acetone, ethanol, deionized water, and ethanol, all of which are cleaned with an ultrasonic cleaning machine, and the single washing is cleaned for 5 minutes, then dried with nitrogen, and dried in an oven To be used; the cleaned ITO glass needs to be subjected to surface activation treatment to increase the oxygen content of the conductive surface layer and improve the work function...
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