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Organic EL coating device and method

A coating device, an organic technology, applied to the surface coating device, lighting device, coating, etc., can solve the problem of not being able to spit out organic EL materials stably, achieve improved maintenance performance, and easy filter replacement Effect

Inactive Publication Date: 2007-09-05
DAINIPPON SCREEN MTG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, there is no special consideration for the nozzle that spits out the organic EL material, so it is not possible to spit out the organic EL material stably and coat the organic EL material well

Method used

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  • Organic EL coating device and method
  • Organic EL coating device and method
  • Organic EL coating device and method

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Experimental program
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Embodiment Construction

[0042] (first embodiment)

[0043] First, a first embodiment of the organic EL coating device of the present invention will be described. Since the filter is installed in the nozzle, clogging of the nozzle is effectively suppressed, and therefore, the first embodiment can stably discharge the coating liquid in which the organic EL material is mixed with a prescribed solvent (hereinafter simply referred to as "organic EL material"). Material").

[0044] FIG. 1 is a diagram showing a first embodiment of an organic EL coating apparatus of the present invention. As shown in FIG. 1, the organic EL coating device is composed of the following parts: a platform 1 for receiving glass substrates S coated with red, green and blue organic EL materials 10a-10c; The platform moving mechanism 2; the position matching symbol detection part 3 which detects the position matching marks formed on the glass substrate S; the first supply part 5 which supplies the red organic EL material 10a to th...

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Abstract

To suppress clogging of a nozzle to stably inject a liquid material and to increase the working efficiency of a (organic EL) coating device equipped with the nozzle to eject a coating liquid or an organic EL material onto a substrate. The inner space SP of a nozzle body 41 constituting the nozzle 4a functions as a passage to pass an organic EL material. A filter 43 is disposed in the inner position on the passage and apart from the orifice 45a disposed at the top end of the nozzle. The filter 43 has filtering accuracy of 10 [mu]m and collects foreign matters and a gelled substance to prevent from reaching to the orifice 45a. Thus, clogging of the orifice 45a due to foreign matters or the like can be surely prevented.

Description

technical field [0001] The present invention relates to an organic EL coating device and method for discharging an organic EL (electroluminescent) material onto a substrate such as a glass substrate. Background technique [0002] Such an organic EL coating device includes: a pump for taking out an organic EL material stored in a supply source; and a nozzle for discharging the organic EL material discharged from the pump from the supply source through a pipeline toward grooves formed on a substrate. The organic EL material is ejected from the nozzle toward the substrate. [0003] The organic EL material is made by dissolving the polymer solution in an organic solvent, and has the characteristic of gelling the polymer solution in the organic EL material by increasing the pressure. Because of this, the nozzle is clogged, and the organic EL material may not be stably discharged from the nozzle. Not only the pressure but also the application conditions such as the flow rate and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H05B33/10B05C5/00
CPCH10K71/135
Inventor 增市干雄高村幸宏森脇三造
Owner DAINIPPON SCREEN MTG CO LTD
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