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An evaporation crucible

A crucible and evaporation technology, applied in the field of OLED preparation, can solve the problems of unstable evaporation rate, affecting the quality of organic materials, affecting the quality of evaporation film formation, etc., to achieve stable evaporation rate, ensure performance, and reduce differences. Effect

Active Publication Date: 2018-03-09
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] In order to solve the low material utilization rate of the crucible in the prior art during evaporation, the overall evaporation rate of the organic material in the crucible is unstable, which affects the quality of the evaporation film, thereby affecting the performance of the device and long-term evaporation. The problem of the quality of organic materials, the embodiment of the present invention provides an evaporation crucible

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0051] OLED is an important electronic component in making flat panel display devices. The OLED includes a glass substrate and an organic material coating, and the organic material coating is formed by evaporating the organic material onto the glass substrate through an evaporation crucible.

[0052] see figure 1 and 2 , the embodiment of the present invention provides an evaporation crucible for evaporating an organic material 7 onto a glass substrate 9 to form an organic material layer, the evaporation crucible includes: a crucible body 1 and a heat conducting component 2;

[0053] The heat conduction part 2 is arranged inside the crucible body 1, and the heat conduction part 2 is used for directly transferring the heat on the cruc...

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Abstract

The present application discloses a vapor-deposition crucible comprising a crucible body for housing a vapor-deposition material and a heat conductor inside the crucible body. At least a portion of the heat conductor extends continuously from a region proximal to an interior surface of the crucible body to a region proximal to a center axis of the crucible body.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/24
CPCC23C14/243
Inventor 陈磊张晓晋
Owner BOE TECH GRP CO LTD
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