Frame sealing glue injector used for forming display frame body

Abstract

The invention provides a frame sealing glue injector used for forming a display frame body. A cavity is formed in the frame sealing glue injector, an opening is formed in the upper end of the cavity, a spray nozzle is arranged at the lower end, the opening in the upper end is connected with high-pressure nitrogen, the cavity is filled with frame sealing glue which is extruded out from the spray nozzle at the lower end, and a filtering device is internally arranged in the cavity so as to isolate foreign impurities in the frame sealing glue. When the frame sealing glue filled in the cavity is injected by the frame sealing glue injector in the extrusion process, large-particle foreign impurities and bubbles are blocked to the upper layer through filtering holes in the filtering device internally arranged in the cavity, so that the large-particle foreign impurities and the bubbles are prevented from being mixed and extruded from the spray nozzle; the frame sealing glue is filtered, and the extruded frame sealing glue is uniform; synchronous filtration and synchronous extrusion are performed, so that a substrate is coated with the formed frame sealing glue, continuity, stability, strength and toughness are stronger, and a finished product ratio is improved; and synchronous filtration is performed during the extrusion process, so that the procedures are reduced, the frame forming time is shortened, and the production efficiency is improved.

Description

technical field [0001] The present invention relates to a display molding device, in particular to a syringe capable of molding a frame sealant for a display. Background technique [0002] With the development of the information society, people's demand for display devices has increased. In order to meet this demand, several types of flat panel display devices have recently been developed, such as: Liquid Crystal Display Devices (LCD), Plasma Display Devices (PDP), OLED Display Devices Devices have been developed rapidly. Among flat panel display devices, liquid crystal display devices are gradually replacing cold cathode display devices due to their advantages of low weight, small size and low power consumption. [0003] The existing TFT-LCD technology is generally divided into an array substrate, a color filter substrate, and a liquid crystal sandwiched between the two substrates like a sandwich biscuit. In order to adhere the upper and lower substrates together, there i...

AI Technical Summary

Problems solved by technology

[0007] 4) Can not contain large foreign matter particles, because the foreign matter particles will lift up the two substrates, making it easier for oxygen and water vapor to enter, reduce the adhesion, and even cause the separation of the upper and lower substrates, resulting in the scrapping of the product, so the sealant Filtered before leaving the factory

[0010] In the production process, due to the limitation of actual operation and production environment, it is very easy to introduce large particles of foreign matter during the mixing of spacer blocks, degassing of sealant, and filling of syringes

When the size of the foreign matter is not large, generally it will not bring a particularly large impact, but when the foreign matter is above 10um or larger, it will often lead to uneven display or even scrapped

[0011] Before the material manufacturer leaves the factory, the frame sealant will be filtered through a filter, but after it reaches the manufacturer, there is no corresponding treatment process during use, the process is cumbersome, the frame forming efficiency is low, and more filter equipment needs to be invested to operate, increasing the cost of production

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