Manufacturing method of drilled display panel and silk screen printing plate

Abstract

The invention discloses a manufacturing method of a drilled display panel. The manufacturing method includes following steps: providing an array substrate and a color film substrate; providing a first silk screen printing plate and a second silk screen printing plate; utilizing the first silk screen printing plate for silk printing to obtain a drilling area sealant, and utilizing the second silk screen printing plate for silk printing to obtain a frame area sealant; oppositely pasting the array substrate and the color film substrate, hot-pressing and curing to obtain a semi-finished product; drilling the semi-finished product in a drilling area to obtain a drilled display panel, wherein thickness h0 of the first silk screen printing plate is set according to curing diameter d1 of the drilling area sealant after curing. The invention further discloses a silk screen printing plate. During silk printing of the drilling area sealant, area of contact with the substrate is small, height is high, the top of the sealant forms a spherical convex face, and no gas exists after the array substrate and the color film substrate are pasted, so that the defect that liquid crystals are prone to leakage after drilling and the defect that the array substrate and the color film substrate are broken and separated due to stress during drilling are eliminated.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for manufacturing a drilled display panel and a screen printing screen. Background technique [0002] With the rise of smart wearable products, smart watches with physical pointer displays and vehicle-mounted liquid crystal displays combine traditional watches with high-tech smart displays to stimulate customers' consumption desires. However, for displays with physical pointers, it is necessary to drill holes in the display panel to obtain through holes to install pointers, and the periphery of the through holes in the drilled area is to prevent liquid crystal leakage and force TFT array substrates and color filter substrates to be broken and separated during the drilling process. The sealing ring located on the periphery of the through-hole must be solid, complete and reliable. However, in the actual process, the sealant in the drilled area obtained by silk screen prin...

AI Technical Summary

Problems solved by technology

However, for displays with physical pointers, it is necessary to drill holes in the display panel to obtain through holes to install pointers, and the periphery of the through holes in the drilled area is to prevent liquid crystal leakage and force TFT array substrates and color filter substrates to be broken and separated during the drilling process. The sealing ring located on the periphery of the through-hole must be solid, complete and reliable. However, in the actual process, the sealant in the drilled area obtained by silk screen printing according to the existing process cannot be completely and reliably sealed due to the presence of bubbles in the sealant in the drilled area after curing. Finally, there are defects that the liquid crystal is easy to leak, and the array substrate and the color filter substrate are cracked and separated due to the force during the drilling process.

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