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Manufacturing method of drilled display panel and silk screen printing plate

A technology of screen printing screen and display panel, applied in nonlinear optics, instruments, optics, etc., can solve the problem of easy leakage of liquid crystal, rupture and separation of array substrate and color filter substrate, and inability to completely and reliably seal the sealant in the drilling area, etc. problems, to achieve the effect of eliminating easy leakage of liquid crystal and improving product quality and stability

Inactive Publication Date: 2017-02-22
TRULY SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Manufacturing method of drilled display panel and silk screen printing plate
  • Manufacturing method of drilled display panel and silk screen printing plate
  • Manufacturing method of drilled display panel and silk screen printing plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for manufacturing a drilled display panel, selecting the drilled hole diameter d of the drilled display panel 2 About 2.0mm, sealing ring width d 3 About 0.6mm, then the curing diameter d 1 About 3.5mm, the volume of the sealant in the drilling area (that is, the leakage volume of the sealant in the drilling area during silk screen printing) V is about π(3.5 / 2) 2 *h 1 ; the method includes the following steps:

[0039] An array substrate and a color filter substrate are provided; the array substrate has a drilling area, a display area, and a frame area, and the display area is between the drilling area and the frame area; the color filter substrate is connected to the array substrate Correspondingly, it also has a drilling area, a display area and a frame area, and the display area is between the drilling area and the frame area;

[0040] Provide the first screen printing screen and the second screen printing screen; the first screen printing screen adopts ...

Embodiment 2

[0046] A method for manufacturing a drilled display panel, selecting the drilled hole diameter d of the drilled display panel 2 About 2.0mm, sealing ring width d 3 About 0.6mm, then the curing diameter d 1 About 3.5mm, the volume of the sealant in the drilling area (that is, the leakage volume of the sealant in the drilling area during silk screen printing) V is about π(3.5 / 2) 2 *h 1 ; the method includes the following steps:

[0047] An array substrate and a color filter substrate are provided; the array substrate has a drilling area, a display area, and a frame area, and the display area is between the drilling area and the frame area; the color filter substrate is connected to the array substrate Correspondingly, there is a drilling area, a display area and a frame area on it, and the display area is between the drilling area and the frame area;

[0048] Provide the first screen printing screen and the second screen printing screen; the first screen printing screen adop...

Embodiment 3

[0054] A method for manufacturing a drilled display panel, selecting the drilled hole diameter d of the drilled display panel 2 About 2.0mm, sealing ring width d 3 About 0.6mm, then the curing diameter d 1 About 3.5mm, the volume of the sealant in the drilling area (that is, the leakage volume of the sealant in the drilling area during silk screen printing) V is about π(3.5 / 2) 2 *h1; the method includes the following steps:

[0055] An array substrate and a color filter substrate are provided; the array substrate has a drilling area, a display area, and a frame area, and the display area is between the drilling area and the frame area; the color filter substrate is connected to the array substrate Correspondingly, there is a drilling area, a display area and a frame area on it, and the display area is between the drilling area and the frame area;

[0056] Provide the first screen printing screen and the second screen printing screen; the first screen printing screen adopts ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1339G02F1/1333
CPCG02F1/1339G02F1/1333
Inventor 廖从雄李林于春崎张海荣何基强
Owner TRULY SEMICON
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