Evaporation crucible

A crucible and evaporation technology, which is applied in the field of OLED preparation, can solve the problems of unstable evaporation rate, affect the quality of evaporation film formation, and affect the quality of organic materials, and achieve stable evaporation rate, ensure performance, and reduce differences. Effect
CN104928628AActive Publication Date: 2015-09-23BOE TECH GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
BOE TECH GRP CO LTD
Publication Date
2015-09-23

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Abstract

The invention discloses an evaporation crucible, and belongs to the technical field of OLED manufacturing. The evaporation crucible comprises a crucible body and heat conduction components, wherein the heat conduction components are arranged in the crucible body and are used for directly transmitting heat on the crucible body to an evaporation material located in the middle of the crucible body. The heat conduction components are arranged in the crucible body, and the heat of the crucible body is directly transmitted to the evaporation material located in the middle of the crucible body through the heat conduction components, so that the temperature difference between the evaporation material located in the middle of the crucible body and an evaporation material close to the inner wall of the crucible body is reduced; the phenomenon that the evaporation material located in the middle of the crucible body remains and is caked to remain in the crucible body is avoided, and the utilization rate of the evaporating materials is improved; and it is ensured that the whole evaporation speed of the evaporation materials in the crucible body is stable, and the evaporation film formation effect is ensured, so that the performance of a device is ensured, and the performance of the evaporation material in the middle of the crucible body is also ensured
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Description

technical field

[0001] The invention relates to the technical field of OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) preparation, in particular to an evaporation crucible. Background technique

[0002] When manufacturing OLEDs, organic materials used to make OLEDs are evaporated onto OLED substrates using crucibles.

[0003] At present, when crucibles are used to vapor-deposit organic materials for making OLEDs, the organic materials are first placed in the crucible, and the crucible is wrapped with a heating wire, which can heat the crucible when it is energized. The organic material is evaporated or sublimated into a gas at high temperature, the gas rises and encounters the OLED substrate above the crucible, and desublimates on the OLED substrate, thereby evaporating the organic material onto the OLED substrate.

[0004] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art...

Claims

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