Glass cement printing device

Abstract

The invention relates to the technical field of display, and discloses a glass cement printing device. The glass cement printing device comprises an accommodating box with a top opening, a pressure plate, and a printing plate, wherein a plurality of glue outlets are formed in a bottom plate of the accommodating box; each glue outlet is equipped with a glue conveying tube; the pressure plate is positioned in the accommodating box and is in sliding fit to the side wall of the accommodating box; the pressure plate is opposite to the bottom plate of the accommodating box, and the bottom plate andthe side walls of the accommodating box are matched to form an accommodating cavity; each glue conveying tube communicates with the accommodating cavity through the glue outlets; the printing plate isequipped with printing units which are in one-to-one correspondence to the glue outlets; each printing unit comprises a ring-shaped printing slot, an opening of which is away from the accommodating box, a gas guide hole is formed in the side wall of the printing slot, and in each pair of the mutually corresponding glue outlet and printing unit, the glue outlet communicates with the printing slotof the printing unit through the corresponding glue conveying tube. By changing the structure of the device, the glue cement printing device is not only beneficial for precisely controlling glass cement printing precision, but also can eliminate a glass cement deviation phenomenon and an edge burr phenomenon.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a glass glue printing device. Background technique [0002] Currently, one of the encapsulation methods adopted by OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display devices is glass glue encapsulation, and the glass glue is printed on the cover glass by screen printing. [0003] However, this technology is difficult to accurately control the printing accuracy of the glass glue, that is, the height and width of the glass; at the same time, the glass will appear offset and edge burrs after printing, resulting in the back-end laser sintering of the cover glass and the array substrate after lamination During the process, the effective sintering area of ​​the glass is reduced, and the ability to isolate water and oxygen is reduced, which seriously affects the performance and service life of the OLED device. Contents of the invention [0004] The invention p...

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Problems solved by technology

[0003] However, this technology is difficult to accurately control the printing accuracy of the glass glue, that is, the height and width of the glass; at the same time, the glass will appear offset and edge burrs after printing, resulting in the back-end laser sintering of the cover glass and the array substrate after lamination During the process, the effective sintering area of ​​the glass is reduced, and the ability to isolate water and oxygen is reduced, which seriously affects the performance and service life of OLED devices

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