CN213957798U

CN213957798U - Anti-tearing structure

Info

Publication number: CN213957798U
Application number: CN202023288485.9U
Authority: CN
Inventors: 徐贤强; 饶巍巍; 姜发明
Original assignee: Shenzhen Australis Electronic Technology Co Ltd
Current assignee: Shenzhen Australis Electronic Technology Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-13
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to a display screen technical field provides an anti-tear structure, include: a PET film comprising: a PET film body; the PET film pulling handle is arranged at the end part of the PET film main body and fixedly connected with the PET film main body; the anti-tearing structure also comprises shading glue, the shading glue is bonded with the PET film main body, and the PET film pull handle extends out of the edge of the shading glue; the edge of the shading glue at the position of the PET film pull handle is punched with a shading glue inner notch, and a cutting mark corresponding to the shape of the shading glue inner notch is formed on the PET film main body. The utility model provides a prevent tearing structure when die-cut shading is glued, glues die-cut formation shading with the shading and glues interior notch, and the shear mark that the die-cut formed on the PET membrane is located PET membrane main part, and the main stress position has been avoided to the shear mark, realizes having improved the atress intensity that the PET membrane pulled the handle, has avoided the PET membrane that leads to when tearing the PET membrane to pull the handle with the cracked situation of PET membrane main part.

Description

Anti-tearing structure

Technical Field

The utility model relates to a display screen technical field, more specifically say, relate to an anti-tear structure.

Background

Along with the development of science and technology, the living standard of people is improved, and the application of display screens is more and more extensive, and the display screens comprise display screen equipment such as smart phones, computers, digital cameras, industrial personal computers, vehicles and the like. The high screen ratio is developed by 20: the 9 large screen is specially-shaped as a mainstream, and the larger the screen is, the higher the requirement on the structural design of the product is put forward. Referring to fig. 1 to 3, the positions of the PET pull handle 201 of the masking adhesive 1 and the PET film 2 in the prior art are designed to be flush with each other, when the masking adhesive 1 is formed by punching, the PET film marked at a position a in fig. 3 is punched to form a cut mark or to be half-broken, which is difficult to control, the cut mark or the half-broken position is a main stressed position when the PET film is torn, and thus the stress at the cut mark or the half-broken position is poor, when an automatic machine tears the PSE film 2 from the masking adhesive 1, the PET film is easily torn at the stressed position a, which results in low generation efficiency and fails to meet the requirement of automatic film tearing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tear-off prevention structure to solve among the prior art the shading glue with the PET of PET membrane draw the position to adopt the parallel and level design, automatic board when tearing the PET membrane, the technical problem that the PET membrane broke appears easily.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a tear-off prevention structure, include:

a PET film comprising:

a PET film body;

the PET film pull handle is arranged at the end part of the PET film main body and fixedly connected with the PET film main body;

the anti-tearing structure further comprises shading glue, the shading glue is bonded with the PET film main body, and the PET film pull handle extends out of the edge of the shading glue;

the edge of the shading glue at the position of the PET film pull handle is punched with a shading glue inner notch, and a cutting mark corresponding to the shape of the shading glue inner notch is formed on the PET film main body.

According to above-mentioned tear-off prevention structure, the interior notch of shading glue includes:

a first shading glue inner notch section;

the second shading glue inner notch section and the third shading glue inner notch section are located on two sides of the first shading glue inner notch section, and the second shading glue inner notch section and the third shading glue inner notch section are in central symmetry with respect to the center of the first shading glue inner notch section.

According to the tearing-off prevention structure, the end part of the second shading glue inner notch section, which is far away from one side of the first shading glue inner notch section, is in a first C-shaped shape, and correspondingly, one end, which is close to the second shading glue inner notch section, of the cutting mark is in a second C-shaped shape;

and/or, the third shading is glued the interior notch section and is kept away from the tip that first shading was glued interior notch section one side is third C angular shape, and is corresponding, what the cut mark was close to the one end that the third shading was glued the interior notch section is fourth C angular shape.

According to the tearing-off prevention structure, the central line of the notch in the shading glue is superposed with the central line of the PET film pull handle.

According to the tearing-off prevention structure, the length of the notch in the shading glue is not less than the width of the PET film pull handle.

According to the tearing-off prevention structure, the length range value of the notch in the shading glue is 10-20 mm, and the length range value of the cut mark is 10-20 mm.

According to the tearing-off prevention structure, the width range value of the notch in the shading glue is 0.1-0.5 mm, and the width range value of the cut mark is 0.1-0.5 mm.

According to the aforesaid prevent tearing off the structure, prevent tearing off the structure and still include the gasket, the gasket is located the PET membrane main part with between the shading glue, just the gasket with the shading glue bonds.

According to the tearing-off prevention structure, the gasket is arranged close to one side of the PET film pulling handle, and the edge of the gasket is flush with the edge of the shading glue.

According to the tearing-off prevention structure, the edge of the gasket is punched to form the notch in the gasket, and the shape of the notch in the gasket is the same as that of the notch in the shading glue.

The utility model provides a prevent tearing off structure's beneficial effect lies in at least:

the utility model provides a prevent tearing structure, when die-cut shading is glued, glue die-cut formation shading with the shading and glue interior notch, the cut mark that die-cut formation was gone up to the PET membrane is located PET membrane main part, make the cut mark avoid the PET membrane to draw the junction with PET membrane main part, the cut mark has avoided main atress position promptly, the realization has improved the atress intensity that the PET membrane drawn the handle, the PET membrane of having avoided leading to when tearing the PET membrane draws handle and the cracked situation of PET membrane main part, the production efficiency is improved, satisfy automatic dyestripping requirement, and simple structure, and convenient operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a light-shielding adhesive in the prior art;

FIG. 2 is a schematic structural view of a prior art PET film;

FIG. 3 is a schematic view of a structure of a prior art light-shielding adhesive combined with a PET film;

fig. 4 is a schematic structural view of a light shielding adhesive provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a PET film provided in an embodiment of the present invention;

fig. 6 is a schematic structural view of the combination of the light-shielding adhesive, the gasket and the PET film provided by the embodiment of the present invention;

FIG. 7 is a schematic view of a portion of the structure of FIG. 5;

FIG. 8 is a schematic view of a portion of the structure of FIG. 4;

fig. 9 is a schematic structural diagram of a gasket according to an embodiment of the present invention;

fig. 10 is a schematic view of a cross-sectional structure of the combination of the light-shielding adhesive, the gasket, and the PET film according to the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10	PET film
		11	PET film body
111	Shear mark
		1111	Second C-shaped corner
1112	Fourth C-shaped corner
		12	PET film pull handle
20	Shading glue
		21	Shading glue inner concaveMouth piece
211	First shading is glued the inner notch section
		212	Second shading glue inner notch section
2121	First C-shaped corner
		213	Third shading glue inner notch section
2131	Third C-shaped corner
		30	Gasket
31	Inner notch of gasket

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

Referring to fig. 4 to 6, the present embodiment provides a tearing-prevention structure, including: a PET film 10, the PET film 10 comprising: a PET film body 11; the PET film pull handle 12 is arranged at the end part of the PET film main body 11, and the PET film pull handle 12 is fixedly connected with the PET film main body 11; the anti-tearing structure further comprises shading glue 20, the shading glue 20 is bonded with the PET film main body 11, and the PET film pull handle 12 extends out of the edge of the shading glue 20; the edge of the light shielding glue 20 at the position of the PET film pull handle 12 is punched with a light shielding glue inner notch 21, and a cut 111 corresponding to the shape of the light shielding glue inner notch 21 is formed on the PET film main body 11. Optionally, the PET film pulling handle 12 extending from the end of the PET film main body 11 and the PET film main body 11 are of an integral structure, and when the PET film main body 11 is torn off from the light shielding glue 20, the joint between the PET film pulling handle 12 and the PET film main body 11 is a main stress position, that is, a position B in fig. 7, which is equivalent to a position a in fig. 3.

The working principle and the working process of the anti-tearing structure provided by the embodiment are as follows:

the tear-off prevention structure that this embodiment provided, PET membrane main part 11 and shading are glued 20 adhesive connection, need adopt the board to tear off the PET membrane main part 11 that bonds on shading is glued 20. When carrying out die-cut shaping to shading glue 20, lieing in the PET membrane draws 12 department the edge die-cut formation shading of shading glue 20 is glued interior notch 21, because shading glue 20 has great die-cut power when die-cut shaping, die-cut simultaneously on PET membrane main part 11 is formed with the corresponding incision 111 of shading glue interior notch 21 shape to the realization makes incision 111 be located PET membrane main part 11, has avoided PET membrane to draw the junction (B department) of 12 and PET membrane main part 11, and then makes incision 111 avoid main stress position, has realized improving the stress strength that PET membrane drawn 12, has avoided tearing to draw PET membrane 10 and has leaded to PET membrane drawn 12 and the cracked situation of PET membrane main part 11.

The anti-tear structure that this embodiment provided lies in at least:

the tear-off prevention structure that this embodiment provided, when die-cut shading glue 20, glue 20 die-cut shading and form notch 21 in the shading glue, the shear mark 111 of die-cut formation is located PET membrane main part 11 on PET membrane 10, make shear mark 111 avoid the PET membrane and draw the junction of 12 and PET membrane main part 11, main stress position has been avoided to shear mark 111 promptly, the realization has improved the PET membrane and has drawn the stress strength of 12, the PET membrane that has avoided leading to when tearing the PET membrane draws 12 and the cracked situation of PET membrane main part 11, the production efficiency is improved, satisfy the automatic membrane requirement of tearing, moreover, the steam generator is simple in structure, and convenient for operation.

In one embodiment, referring to fig. 8, the inner recess 21 of the light-shielding glue includes: a first light-shielding adhesive inner notch section 211; the second shading glue inner notch section 212 and the third shading glue inner notch section 213 are positioned on two sides of the first shading glue inner notch section 211, and the second shading glue inner notch section 212 and the third shading glue inner notch section 213 are in central symmetry with respect to the center of the first shading glue inner notch section 211. Set up second shading in the both sides of first shading in the gluey inner notch section 211 respectively and glue inner notch section 212 and three shading in the gluey inner notch section 213, just the second shading in the gluey inner notch section 212 with the third shading in the gluey inner notch section 213 about the center of first shading in the gluey inner notch section 211 is central symmetry for when tearing PET membrane 10, the atress that the PET membrane draws 12 both sides is the same, and the PET membrane draws 12 and is difficult for being torn with the cut 111 department that PET membrane main part 11 formed, has improved the fastness of PET membrane 10 structure.

In one embodiment, referring to fig. 8, the end of the second light-shielding adhesive inner notch section 212 far from the first light-shielding adhesive inner notch section 211 is a first C-shaped part 2121, and correspondingly, the end of the cut 111 near the second light-shielding adhesive inner notch section 212 is a second C-shaped part 1111. When die-cut shading glue 20, be first C angle form 2121 with the end die-cut of second shading glue indent section 212, and then make and glue the PET membrane main part 11 that 20 bonds with the shading and correspond the position by the die-cut incision 111 that forms and be second C angle form 1111, the setting of second C angle form 1111 can prevent that the PET membrane 10 that has incision 111 from being broken by the stretch-breaking, has improved the stress strength that the PET membrane pulled handle 12 to the fastness of PET membrane 10 overall structure has been improved. And/or the end of the third light-shielding adhesive inner notch section 213 far away from the first light-shielding adhesive inner notch section 211 is a third C-shaped 2131, and correspondingly, the end of the cut 111 close to the third light-shielding adhesive inner notch section 213 is a fourth C-shaped 1112. When die-cut shading glue 20, the end die-cut of recess section 213 is third C angle form 2131 with the third shading glue, and then makes the cut mark 111 that is die-cut and forms correspond the position and be fourth C angle form 1112 on the PET membrane main part 11 that bonds with shading glue 20, and the setting of fourth C angle form 1112 can prevent that the PET membrane 10 that has cut mark 111 from being broken by the stretch, has improved the stress strength that the PET membrane pulled handle 12 to the fastness of PET membrane 10 overall structure has been improved.

In one embodiment, the central line of the notch 21 in the light-shielding glue coincides with the central line of the PET film pull handle 12, so that the stress strength of the PET film pull handle 12 can be increased, and the structure of the PET film 10 is firmer.

In one embodiment, the length a of the notch 21 in the light shielding glue is not less than the width b of the PET film pull handle 12.

In one embodiment, when the length a of the light shielding glue inner notch 21 is equal to the width b of the PET film pull handle 12, the position of the light shielding glue inner notch 21 is aligned with the PET film pull handle 12, that is, the sum of the lengths of the first light shielding glue inner notch section 211, the second light shielding glue inner notch section 212 and the third light shielding glue inner notch section 213 is equal to the width of the PET film pull handle 12.

When the length a of the shading glue inner notch 21 is larger than the width b of the PET film pulling handle 12, the first shading glue inner notch section 211 is aligned with the PET film pulling handle 12, namely, the length of the first shading glue inner notch section 211 is equal to the width b of the PET film pulling handle 12, the second shading glue inner notch section 212 and the third shading glue inner notch section 213 extend to be arranged on two sides of the PET film pulling handle 12 respectively, and the length of the second shading glue inner notch section 121 and the third shading glue inner notch section 213 is equal.

In one embodiment, referring to fig. 6, the length a of the notch 21 in the light-shielding glue ranges from 10mm to 20mm, and the length of the cut 111 ranges from 10mm to 20 mm. The length a of the light shielding glue inner notch 21 is punched to be in the above numerical range, and the length of the cut 111 corresponds to the above numerical value, which not only ensures that the PET film 10 is not easily broken, but also ensures that the light shielding glue 20 is not affected when in use. Optionally, the length a of the notch 21 in the light-shielding glue ranges from 12mm to 17mm, and the length of the cut 111 also ranges from 12mm to 17 mm. Optionally, the length a of the inner notch 21 of the light-shielding glue is 15mm, and the length of the cut 111 thereof is also 15 mm. It should be understood that the length a of the light shielding glue inner recess 21 and the length of the cut 111 are not limited to the above-mentioned case, and may be other cases, and are not limited herein.

In one embodiment, the width c of the notch 21 in the light-shielding glue ranges from 0.1mm to 0.5mm, and the width of the cut 111 ranges from 0.1mm to 0.5 mm. The width c of the notch 21 in the light shielding glue is punched to be within the above numerical range, and the width of the cut 111 corresponds to the above numerical value, which not only ensures that the PET film 10 is not easily broken, but also ensures that the light shielding glue 20 is not affected when in use. Optionally, the range value of the width c of the notch 21 in the light-shielding glue is 0.2mm to 0.4mm, and correspondingly, the range value of the width of the cut 111 is also 0.2mm to 0.4 mm. Optionally, the width c of the inner notch 21 of the light-shielding glue is 0.3mm, and correspondingly, the width of the cut 111 is also 0.3 mm. It should be understood that the width c of the notch 21 in the light shielding adhesive and the width of the cut 111 are not limited to the above case, and may be other cases, and are not limited herein.

Optionally, the width b of the PET film handle 12 ranges from 10mm to 12 mm. Optionally, the PET film pull handle 12 has a width b of 10 mm. It should be understood that the width b of the PET film handle 12 is not limited to the above case, but may be other cases, and is not limited thereto.

Optionally, the thickness of the PET film handle 12 ranges from 0.075mm to 0.1 mm. Optionally, the PET film pull handle 12 has a thickness of 0.08 mm. It should be understood that the thickness of the PET film handle 12 is not limited to the above case, and may be other cases, which are not limited herein.

In one embodiment, referring to fig. 6, 9 and 10, the tearing-prevention structure further includes a gasket 30, the gasket 30 is disposed between the PET film body 11 and the light shielding glue 20, and the gasket 30 is adhered to the light shielding glue 20. PET membrane main part 11 with set up gasket 30 between the shading is glued 20, the setting of its gasket 30 can reduce PET membrane main part 11 with the shading glues 20 bonding area, when following PET membrane main part 11 when the shading is glued 20 and is peeled off, improves PET membrane main part 11 and peels off efficiency, and then improves production efficiency, satisfies automatic dyestripping requirement.

In one embodiment, the spacer 30 is disposed adjacent to one side of the PET film handle 12, and the edge of the spacer 20 is flush with the edge of the light shielding adhesive 20. Set up like this and make PET membrane main part 11 follow when peeling off on the shading glue 20, more laborsaving improves and peels off efficiency, and then improves production efficiency, satisfies automatic dyestripping requirement.

In one embodiment, referring to fig. 9, the edge of the gasket 30 is die cut to form an inner gasket recess 31, and the inner gasket recess 31 has the same shape as the inner light shielding film recess 21. Because the gasket 30 is located PET membrane main part 11 with between the shading glue 20, and be close to the edge that the shading glued 20 to the edge parallel and level of shading glue 20 makes when die-cut shading glue 20, the gasket 30 is also die-cut and forms notch 31 in the gasket, and the gasket 30 is die-cut along with the shading glue 20 and also forms notch 31 in the gasket, is following PET membrane main part 11 when the shading glue 20 is peeled off, can improve and peel off efficiency, and then improves production efficiency, satisfies automatic dyestripping requirement.

To sum up, this embodiment provides a tear-off prevention structure, includes: a PET film 10, the PET film 10 comprising: a PET film body 11; the PET film pull handle 12 is arranged at the end part of the PET film main body 11, and the PET film pull handle 12 is fixedly connected with the PET film main body 11; the anti-tearing structure further comprises shading glue 20, the shading glue 20 is bonded with the PET film main body 11, and the PET film pull handle 12 extends out of the edge of the shading glue 20; the edge of the light shielding glue 20 at the position of the PET film pull handle 12 is punched with a light shielding glue inner notch 21, and a cut 111 corresponding to the shape of the light shielding glue inner notch 21 is formed on the PET film main body 11. The tear-off prevention structure that this embodiment provided, when die-cut shading glue 20, glue 20 die-cut shading and form notch 21 in the shading glue, the shear mark 111 of die-cut formation is located PET membrane main part 11 on PET membrane 10, make shear mark 111 avoid the PET membrane and draw the junction of 12 and PET membrane main part 11, main stress position has been avoided to shear mark 111 promptly, the realization has improved the PET membrane and has drawn the stress strength of 12, the PET membrane that has avoided leading to when tearing the PET membrane draws 12 and the cracked situation of PET membrane main part 11, the production efficiency is improved, satisfy the automatic membrane requirement of tearing, moreover, the steam generator is simple in structure, and convenient for operation.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A tear-off prevention structure, comprising:

a PET film comprising:

a PET film body;

2. The tear resistant structure of claim 1 wherein: the shading is glued the interior recess and is included:

a first shading glue inner notch section;

3. The tear resistant structure of claim 2 wherein: the end part of one side, away from the first shading glue inner notch section, of the second shading glue inner notch section is in a first C-shaped shape, and correspondingly, one end, close to the second shading glue inner notch section, of the cutting mark is in a second C-shaped shape;

4. A tear resistant structure as claimed in any one of claims 1 to 3, wherein: the central line of the notch in the shading glue is superposed with the central line of the PET film pull handle.

5. A tear resistant structure as claimed in any one of claims 1 to 3, wherein: the length of the notch in the shading glue is not less than the width of the PET film pull handle.

6. A tear resistant structure as claimed in any one of claims 1 to 3, wherein: the length range value of the notch in the shading glue is 10 mm-20 mm, and the length range value of the cut mark is 10 mm-20 mm.

7. A tear resistant structure as claimed in any one of claims 1 to 3, wherein: the width range value of the notch in the shading glue is 0.1-0.5 mm, and the width range value of the cut is 0.1-0.5 mm.

8. A tear resistant structure as claimed in any one of claims 1 to 3, wherein: the anti-tearing structure further comprises a gasket, the gasket is arranged between the PET film main body and the shading glue, and the gasket is bonded with the shading glue.

9. The tear resistant structure of claim 8 wherein: the gasket is close to the PET film pull handle, and the edge of the gasket is flush with the edge of the shading glue.

10. The tear resistant structure of claim 9 wherein: and the edge of the gasket is punched to form an inner notch of the gasket, and the shape of the inner notch of the gasket is the same as that of the inner notch of the shading glue.