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Coating layer forming method and coating device using slit nozzle

A technology of slit nozzle and coating layer, which is applied to devices for coating liquid on surfaces, spray devices, coatings, etc., can solve the problems of inability to form bumps, low average thickness, and difficulty in forming bumps. The effect of improving reliability

Inactive Publication Date: 2019-03-12
TOP ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Conversely, at the beginning and end of the coating layer, the coating liquid is pulled along the movement direction of the slit nozzle while being connected to the slit nozzle due to its inherent viscosity, so it is difficult to form a bump that meets the required height
In particular, in the case of the starting end, not only the bump cannot be formed, but also the phenomenon that the average thickness is quite low due to the inclination of the starting end frequently occurs

Method used

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  • Coating layer forming method and coating device using slit nozzle
  • Coating layer forming method and coating device using slit nozzle
  • Coating layer forming method and coating device using slit nozzle

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Embodiment Construction

[0020] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

[0021] image 3 is a perspective view showing a coating device used in a method for forming a coating layer according to the present invention, Figure 4 to Figure 7 It is a conceptual diagram which sequentially shows the formation method of the coating layer by this invention.

[0022] refer to Figure 3 to Figure 7 The coating device includes a base frame (not shown), is arranged on the base frame, and loads a pallet 10 of a panel P for a flat panel display on the base frame, and coats the coating area A of the panel P loaded on the pallet 10 as a coating. The coating head 20 of the optical elastic resin SVR for liquid distribution, and the coating head drive unit 30 that moves the coating head 20 vertically and horizontally. Although not shown in the figure, the coating device may also include a control unit for controlling the operation of ...

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Abstract

According to the invention, by use of a slit nozzle, a section retroversion is formed on a start end of a coating layer, a section advance is formed on a terminal of the coating layer, super view resin (SVR) is coated on a panel for a flat panel display (FPD) so that the coating layer is formed in a coating section of the panel. Thus, when the coating layer is formed, the periphery of the coating layer can be definitely provided with a bump according to required height.

Description

technical field [0001] The present invention relates to a method for forming a coating layer on a panel for a flat panel display (FPD) by using a slit nozzle and a coating device used therefor. Background technique [0002] Generally, flat panel displays (FPDs) such as liquid crystal displays (liquid crystal display, LCD) and organic light emitting diodes (organic light emitting diode, OLED) are laminated on display panels including display units such as LCD elements and OLED elements, such as strengthened glass or Manufactured by covering panels such as acrylic boards, and optical elastic resin (super view resin, SVR) is interposed between the bonded display panel and the covering panel to ensure a wide viewing angle. [0003] In the past, an air layer was placed between the display panel and the cover panel, but recently there is a tendency to replace it with an optical elastic resin. If the optical elastic resin is used, the refractive index adjustment function can reduc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D1/02B05B13/04B05B13/02
CPCB05C5/02B05C11/1018B05D1/26B05D1/36B05D7/50C09D201/005
Inventor 林炫成
Owner TOP ENG CO LTD