Fluorescent lamp fluorescent liquid coating device

A coating device and fluorescent liquid technology are applied to the surface coating liquid device, the application of luminous paint, and the components of gas discharge lamps, etc., which can solve the problems of difficulty in maintaining stable viscosity of fluorescent liquid and complicated manufacturing process, etc. Achieve the effect of improving coating quality, maintaining stable viscosity and preventing evaporation

Inactive Publication Date: 2008-04-30
WEIHAI DMS OPTICAL ELECTROMECHANICAL CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0008] However, when the above-mentioned method is used to coat the lamp tube, if the storage tank storing the fluorescent liquid is exposed to the atmosphere, it will cause the evaporation of the fluorescent liquid or the moisture in the atmosphere will enter the fluorescent liquid, so the viscosity of the fluorescent liquid is difficult to keep stab...

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  • Fluorescent lamp fluorescent liquid coating device
  • Fluorescent lamp fluorescent liquid coating device
  • Fluorescent lamp fluorescent liquid coating device

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Embodiment Construction

[0022] Next, the configuration of a fluorescent liquid application device for a fluorescent lamp according to a preferred embodiment of the present invention will be described with reference to the drawings.

[0023] As shown in Fig. 1, the fluorescent liquid coating device of the fluorescent lamp provided by the present invention includes: a chamber C; a loading box 6, which is used to carry the glass tube G combined with the chamber C; a negative pressure generating device M1 , which is connected with the chamber C, and generates negative pressure by changing the internal pressure of the chamber C, so as to coat the fluorescent liquid on the inner wall of the glass tube G; the drying device M2, which is connected with the chamber C is connected to supply dry gas into the chamber C, thereby drying the fluorescent liquid inside the glass tube G; a storage device, which is used to store the fluorescent liquid, so that when the negative pressure generating device M1 is driven , ...

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Abstract

The invention relates to a fluorescent liquid coat device of fluorescent lamp which comprises a storage device used for storing and coating the fluorescent liquid in the wall of the glass tube, a saturated vapour supply device used for supplying vapor to the storage device, to apply pressure on the fluorescent liquid fluid level of the storage device, thereby preventing the evaporation of the fluorescent liquid and the flow of outer water or air. The fluorescent liquid coat device of fluorescent lamp applies pressure on the stored fluorescent liquid level through filling saturated vapour in the storage groove, thereby preventing the evaporation of the fluorescent liquid, keeping stability of the viscocity of fluorescent liquid and improving the coating quality of the fluorescent lamp.

Description

technical field [0001] The invention relates to a fluorescent lamp coating device, in particular to a fluorescent liquid coating device for a fluorescent lamp which utilizes steam pressure to prevent the fluorescent liquid from evaporating, thereby stably maintaining the viscosity and physical properties of the fluorescent liquid for coating. Background technique [0002] In general, fluorescent lamps are broadly classified into cold cathode fluorescent lamps (CCFL: Cold Cathode Fluorescent Lamp) and external electrode fluorescent lamps (EEFL: External Electrode Fluorescent Lamp). Low and other advantages, and can be made into small fluorescent lamps, so it has been widely used as LCD backlight recently. [0003] The manufacturing process of this kind of external electrode fluorescent lamp includes: the process of coating the fluorescent liquid on the inner wall of the glass tube used to manufacture the fluorescent lamp; the process of roasting the coated fluorescent liquid;...

Claims

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Application Information

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IPC IPC(8): H01J9/22H01J9/20B05C11/10
CPCH01J9/22H01J61/35H01J61/42H01J2209/012H01J2209/015
Inventor 朴庸硕李永哲金凖挥
Owner WEIHAI DMS OPTICAL ELECTROMECHANICAL CO LTD
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