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Printing device and frame encapsulating frit printing device

A technology of printing equipment and sealing glue, which is applied in the field of display panel preparation, and can solve the problems of shortening the life of the mask plate, printing shape and height, and wear and tear.

Active Publication Date: 2020-05-19
ORDOS YUANSHENG OPTOELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor found that at least the following problems exist in the prior art: using a rubber knife to print the sealing material, the printing quality is highly correlated with the rubber knife
During the printing process, the rubber knife is in contact with the mask plate, causing wear to the mask plate and the rubber knife, making it difficult to guarantee the printing shape and height, and shortening the life of the mask plate

Method used

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  • Printing device and frame encapsulating frit printing device
  • Printing device and frame encapsulating frit printing device
  • Printing device and frame encapsulating frit printing device

Examples

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Embodiment 1

[0026] like Figures 1 to 3 As shown, this embodiment provides a printing device for printing a sealant on the display substrate 1 . Among them, the sealing glue is preferably glass glue. The printing device provided in this embodiment includes: a storage chamber and an air pressure chamber. Wherein, it includes a main body 11 and a reticle 12, the main body 11 is used to accommodate the sealant material 3; the reticle 12 is arranged on the side of the main body 11 close to the display substrate 1, and the reticle 12 has a patterned opening area; an air pressure chamber, which communicates with the accommodation chamber, and is used to adjust the air pressure of the accommodation chamber, so that the sealant material 3 in the accommodation chamber overflows through the opening area of ​​the reticle 12 under the action of air pressure.

[0027] In the printing device provided in this embodiment, the air pressure of the accommodation chamber is adjusted through the air pressur...

Embodiment 2

[0040] This embodiment provides a frame sealant printing device, including any printing device provided in Embodiment 1.

[0041] Preferably, the sealant printing device provided in this embodiment further includes a sealant injection unit, configured to inject the sealant into the main body of the accommodating chamber of the printing device.

[0042] Since the sealing glue printing device provided in this embodiment includes the printing device provided in Example 1, compared with the prior art where the sealing glue is scraped onto the display substrate through a screen printing process, the sealing frame provided in this embodiment The offset printing device does not need to use a scraper when printing the frame sealant, and will not cause wear to the mask plate, and will not affect the service life of the mask plate. The screen printing method in the prior art is open printing. With the evaporation of the solvent in the sealant, the viscosity of the sealant material incre...

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Abstract

The invention provides a printing device and a frame encapsulating frit printing device, and belongs to the technical field of display panel preparation. The printing device can solve the problem thatan existing screen printing mask is easy to lose and short in life. The printing device is used for printing a frame encapsulating frit on a display substrate; the printing device comprises an accommodating chamber and an air pressure chamber, wherein the accommodating chamber comprises a main body part and a mask, the main body part is used for accommodating a frame encapsulating frit material;the mask is arranged on the side, close to the display substrate, of the main body part, and the mask is provided with a patterned opening area; and the air pressure chamber communicates with the accommodating chamber and is used for adjusting air pressure of the accommodating chamber so as to enable the frame encapsulating frit material in the accommodating chamber to be overflown through the opening area of the mask under the action of the air pressure.

Description

technical field [0001] The invention belongs to the technical field of display panel preparation, and in particular relates to a printing device and a sealing glue printing device. Background technique [0002] Currently, Organic Light-Emitting Diode (Organic Light-Emitting Diode; [0003] One of the encapsulation methods adopted by OLED) display substrates is glass glue (frit) encapsulation. In this packaging method, a circle of glass glue is printed around the display area (edge) of the display substrate by screen printing to form a sealant pattern, and then the cover plate and the display substrate with the pattern of the sealant pattern are vacuum-boxed, and then The organic matter in the glass glue is removed by baking, and then the vacuum-bonded packaging substrate and the display substrate are bonded together by melting and bonding the glass glue through laser sintering. Specifically, in the prior art, the screen printing process uses a scraper to squeeze the mask, ...

Claims

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Application Information

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IPC IPC(8): B41F15/08B41F15/40H01L51/52H01L51/56
CPCB41F15/08B41F15/40H10K50/8426H10K50/84H10K71/00
Inventor 田志峰
Owner ORDOS YUANSHENG OPTOELECTRONICS
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