Dry ice cleaning device for baffle plate for organic light emitting diode (OLED) evaporation, and process thereof
A technology of dry ice cleaning and baffles, which is applied in the direction of cleaning methods and appliances, chemical instruments and methods, etc., can solve the problems of polluting the environment and high cleaning costs, and achieve the effects of easy operation, low cleaning costs, and simple structure
Pending Publication Date: 2019-01-01
上海钥熠电子科技有限公司
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Problems solved by technology
[0006] In view of this, the purpose of the present invention is to provide a dry ice cleaning device for OLED evaporation baffles and its process, which uses dry ice cleaning to replace traditional organic solvent cleaning methods, reduces the cleaning cost of baffles, easily recycles OLED materials, and is environmentally friendly , to overcome the problems of high cleaning cost and environmental pollution of existing OLED evaporation baffles
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[0027] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings, but the scope of protection of the present invention is not limited to the following embodiments.
[0028] see image 3 , the dry ice cleaning device of the baffle for OLED evaporation, including a dry ice generator, a material collector and a cleaning cavity, and the baffle for OLED evaporation to be cleaned is placed in the cleaning cavity; wherein,
[0029] The cleaning chamber is a transparent or translucent closed structure, with a fan filter unit (FFU) on the top, connected to the material collector at the bottom, and a fixing device for the baffle for OLED evaporation to be cleaned inside;
[0030] The dry ice generator is connected to the inside of the cleaning chamber;
[0031] The material collector is equipped with a negative pressure drainage device.
[0032] In a preferred example, the dry ice blasting device further includes a...
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The invention discloses a dry ice cleaning device for a baffle plate for organic light emitting diode (OLED) evaporation, and a process thereof. The dry ice cleaning device comprises a dry ice generator, a material collector with a negative pressure drainage device, and a cleaning cavity, wherein the baffle plate to be cleaned for OLED evaporation is arranged in the cleaning cavity; the cleaning cavity is of a transparent or semi-transparent sealed structure; a fan filter unit is arranged on the top part of the cleaning cavity; the bottom part of the cleaning cavity is connected with the material collector; a baffle plate fixing device is arranged in the cleaning cavity; and the dry ice generator is connected with the inner part of the cleaning cavity. The cleaning process comprises the steps of (i) dry ice cleaning; (ii) pure water cleaning; (iii) drying; and (iv) sand blasting. Dry ice cleaning is adopted to replace traditional organic solvent cleaning, so that the cleaning cost of the baffle plate is reduced, an OLED material is convenient to recover and high in recovery efficiency, and the device and the process are environmental-friendly.
Description
technical field [0001] The invention belongs to the technical field of OLED device preparation, and in particular relates to a dry ice cleaning device for a baffle for OLED evaporation, and also relates to a process for cleaning the baffle for OLED evaporation by the device. Background technique [0002] At present, the structure of an OLED top-emitting device mainly includes an emitting anode (RE), a hole injection layer (HIL), a hole transport layer (HTL), an emissive layer (EML), an electron transport layer (ETL), and an electron injection layer (EIL). ), and the cathode (Cathode) are stacked in sequence, which has the advantages of wide viewing angle, high brightness and high contrast, low energy consumption and thinner volume, etc., and is currently the focus of flat panel display technology. [0003] The preparation process of OLED top-emitting devices is as follows: first deposit or spray metal materials on the base material to form a reflective anode. The traditional...
Claims
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IPC IPC(8): B08B7/00B08B13/00
CPCB08B7/00B08B13/00
Inventor 陈文勇
Owner 上海钥熠电子科技有限公司