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Square adhesive structure and manufacturing method thereof

A production method and technology of digital glue, applied in nonlinear optics, instruments, optics, etc., can solve the problems of high cost of digital glue, low cutting utilization rate of black and white glue, etc., to ensure optical taste, high utilization rate, The effect of cutting convenience

Active Publication Date: 2016-04-06
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The black and white glue is generally a square structure of the word "口". If the same size of black and white glue is used in the same backlight module, the cutting utilization rate of the black and white glue will be relatively low, and the whole piece of black and white glue in the middle Both need to be cut and removed while retaining the outer frame part, which leads to a relatively high cost of the glue

Method used

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  • Square adhesive structure and manufacturing method thereof
  • Square adhesive structure and manufacturing method thereof
  • Square adhesive structure and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] refer to Figure 1~3 , the word-of-mouth glue structure of the present embodiment comprises black and white glue 10, heavy industry glue 20, first protective film 30 and second protective film 40, and black and white glue 10 comprises the upper rubber strip 11, lower rubber strip 12 and The side rubber strips 13 on both sides, among the black and white glue 10, the lower rubber strip 12 is the widest; Narrow; the first protective film 30 is attached to the other side of the black and white adhesive 10 relative to the heavy industrial adhesive; the second protective film 40 is attached to the outer surface of the heavy industrial adhesive 20 and the black and white adhesive 10 at the same time.

[0035] Here, Heavy Industry Adhesive 20 is Heavy Industry Repair Tape, which can be used to assist in attaching or peeling off black and white adhesive, usually OCA (Optically Clear Adhesive), used to attach to the side of the glass panel, and black and white adhesive is used to...

Embodiment 2

[0038] Such as Figure 4 In order to avoid part of the black and white glue still adhering to the PET film when the first protective film 30 is torn off, in this embodiment, the side rubber strips 13 on both sides are preferably extended to the two sides of the inner side wall and the widest lower rubber strip 12 respectively. The lower rubber strip 12 is surrounded in the middle. Since the lower rubber strip 12 has a wider width, its adhesion is stronger and it is not easy to be lifted. In addition, it is preferable that the two ends of the heavy industrial glue 20 also extend to the joint. On the side rubber strips 13 on both sides.

[0039] In this way, when the first protective film 30 is peeled off from the corner, the side rubber strips 13 on both sides will protect the lower rubber strip 12 in the middle, and the side rubber strips 13 on both sides will be connected with the wider lower rubber strip 12 in the middle. Forming a whole reduces the probability of black and...

Embodiment 3

[0041] Such as Figure 5 As shown, the side rubber strips 13 on both sides extend to the inner side walls to respectively attach to the two ends of the lower rubber strip 12, and enclose the lower rubber strip 12 in the middle. Different from Embodiment 2, each side rubber strip 13 of this embodiment is in an "L" shape, including mutually perpendicular narrow strips 131 and wider wide strips 132, preferably the wide strips 132 have the same width as the lower rubber strips 12, and Splicing and co-linear with the lower rubber strip 12. In addition, the two ends of the heavy industrial glue 20 are extended to the side glue strips 13 attached on both sides. In this way, the tearing force (F in the figure) exerted from the corner of the "L"-shaped side rubber strip 13 is more difficult to peel off the narrow strip 131 .

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Abstract

The invention discloses a square adhesive structure. The square adhesive structure comprises a black and white adhesive, a heavy industry adhesive, a first protective film and a second protective film. The black and white adhesive comprises an upper adhesive strip, a lower adhesive strip and side adhesive strips on the two sides, wherein the upper adhesive strip, the lower adhesive strip and the side adhesive strips are spliced to define a rectangular area, and the lower adhesive strip is the widest. The heavy industry adhesive is attached to one face of the lower adhesive strip in the manner that the end face of the heavy industry adhesive is flush with the lower adhesive strip, and the heavy industry adhesive is narrower than the lower adhesive strip. The first protective film is attached to the other face, relative to the heavy industry adhesive, of the black and white adhesive. The second protective film is attached to the outer surface of the heavy industry adhesive and the black and white adhesive at the same time. The invention further discloses a manufacturing method of the square adhesive structure. The square adhesive structure is formed by splicing sectional structures, so that cutting is convenient, and the utilization rate of the black and white adhesive is high; besides, when the protective films on the outer surfaces of the black and white adhesive are torn off, the black and white adhesive is prevented from being torn up along with the protective films, so that the situation that the black and white adhesive deviates, and consequently dislocation or light leak occurs is avoided, and the optical grade is ensured.

Description

technical field [0001] The invention relates to the field of design and manufacture of display parts, in particular to a word-adhesive structure and a manufacturing method thereof. Background technique [0002] With the rapid development of the mobile phone industry, the speed of mobile phone replacement is also accelerating, resulting in peripheral industries having to keep up with the pace of mobile phone manufacturers' updates. As a backlight module for mobile phones, it not only needs to meet the special performance requirements of customers such as high brightness, energy saving, and high color gamut, but also needs to reduce costs while ensuring the specified service life to improve product competitiveness. [0003] The backlight module usually includes an optical film set composed of a plastic frame, a backlight source, a reflector, a light guide plate, a diffuser, and an upper and lower prism sheet. Finally, the black and white word glue on the top surface of the pla...

Claims

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Application Information

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IPC IPC(8): G02F1/1339
CPCG02F1/1339
Inventor 刘中杰
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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