CN113665978A

CN113665978A - Protection film and touch display module

Info

Publication number: CN113665978A
Application number: CN202111003757.2A
Authority: CN
Inventors: 刘昱麟; 李鸿健
Original assignee: Interface Optoelectronics Shenzhen Co Ltd; Interface Technology Chengdu Co Ltd; Yecheng Optoelectronics Wuxi Co Ltd; General Interface Solution Ltd
Current assignee: Interface Optoelectronics Shenzhen Co Ltd; Interface Technology Chengdu Co Ltd; General Interface Solution Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2021-11-19
Anticipated expiration: 2041-08-30
Also published as: CN113665978B

Abstract

The application relates to the technical field of display, and the embodiment of the application provides a protective film and a touch display module, wherein the protective film at least comprises a protective film body and at least one tearing film, the tearing film comprises a main body part connected with the protective film body and a tearing part connected with the main body part, a joint of the main body part and the protective film body is provided with a riding line, and the riding line comprises a plurality of gaps which are arranged at intervals along the routing direction of the riding line; the saddle stitch line has a starting point and an end point, and a first interval between the slits in the saddle stitch line near the starting point is larger than a second interval between the slits in the saddle stitch line near the end point along the running direction of the saddle stitch line; the protection film that can set up different intervals according to different positions promptly, can prevent to be close to the starting point receives external force factor and splits, also is convenient for tear the part of the protection film that is close to the terminal point to the phenomenon that has prevented to make the protection film fracture because of external force influence and tearing the action takes place.

Description

Protection film and touch display module

Technical Field

The present application relates to the field of display technologies, and in particular, to a protection film and a touch display module having the protection film.

Background

In the assembling process of the touch display module, the camera shooting hole position of the display panel is needed to be utilized for alignment. In order to meet the requirement of easy alignment, the protective film covering the display panel is usually removed. However, the protective film is easily broken during the peeling process, and other regions of the display panel cannot be protected.

Disclosure of Invention

Accordingly, it is desirable to provide a protective film and a touch display module having the same, so as to prevent the protective film from being broken during the tearing process.

According to a first aspect of the present application, an embodiment of the present application provides a protective film, including:

a protective film body; and

the tearing film comprises a main body part connected with the protective film body and a tearing part connected with the main body part, and a joint of the main body part and the protective film body is provided with a riding line;

wherein the riding line comprises a plurality of gaps which are arranged at intervals along the routing direction of the riding line; the rider line has a starting point and an ending point, and a first interval between slits in the rider line near the starting point is larger than a second interval between slits in the rider line near the ending point in a running direction of the rider line.

In one embodiment, a line connecting the starting point and the ending point is collinear with one side edge of the protective film.

In one embodiment, a virtual connecting line is arranged between the tearing part and the main body part;

and the connection line of the starting point and the end point is superposed with the virtual connection line.

In one embodiment, the tear-away portion is offset from the center of the body portion.

In one embodiment, the main body portion is symmetrically disposed with a perpendicular bisector perpendicular to a line connecting the start point and the end point;

the tearing part is located on one side of the perpendicular bisector along the direction of the starting point pointing to the end point.

In one embodiment, the stitch line includes a first stitch sub-line, a second stitch sub-line, and a third stitch sub-line perpendicular to the perpendicular bisector and connecting the first stitch sub-line and the second stitch sub-line.

In one embodiment, the first interval d1 and the second interval d2 satisfy a preset condition, wherein the preset condition includes:

d1-d2 is more than or equal to 0.05 mm.

In one embodiment, the preset condition is specifically:

d 1-0.3 mm and d 2-0.25 mm.

In one embodiment, the length of the slit in the rider thread near the starting point is greater than the length of the slit in the rider thread near the ending point in the riding thread running direction.

According to a second aspect of the present application, an embodiment of the present application provides a touch display module, including a display panel and the protection film as described above; the protective film is covered on the display panel, and the orthographic projection of the tearing part on the display panel is positioned outside the display panel.

In one embodiment, the main body part is opposite to a camera hole on the display panel.

In the protective film and the touch display module with the protective film, the protective film at least comprises a protective film body and at least one tearing film, the tearing film comprises a main body part connected with the protective film body and a tearing part connected with the main body part, a riding line is arranged at the joint of the main body part and the protective film body, and the riding line comprises a plurality of gaps which are distributed at intervals along the routing direction of the riding line; the saddle stitch line has a starting point and an end point, and a first interval between the slits in the saddle stitch line near the starting point is larger than a second interval between the slits in the saddle stitch line near the end point along the running direction of the saddle stitch line; the protection film that can set up different intervals according to different positions promptly, can prevent to be close to the starting point receives external force factor and splits, also is convenient for tear the part of the protection film that is close to the terminal point to the phenomenon that has prevented to make the protection film fracture because of external force influence and tearing the action takes place.

Drawings

FIG. 1 is a schematic structural diagram of a protective film in an embodiment of the related art;

FIG. 2 is a schematic structural diagram illustrating a protective film breaking during a tearing process according to an embodiment of the related art;

FIG. 3 is a schematic structural diagram illustrating a protective film broken due to external factors in an embodiment of the related art;

FIG. 4 is a schematic structural diagram of a protective film according to an embodiment of the present disclosure;

FIG. 5 is an enlarged view of a portion at G of FIG. 4 in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a protective film according to another embodiment of the present application;

FIG. 7 is a schematic view of the structure of a suture in an embodiment of the present application;

FIG. 8 is a schematic view of a structure of a suture line in a further embodiment of the present application.

Notation of elements for simplicity:

100: protective film 110: protective film body

120: tearing off the film 121: main body part

122: the tear-off portion 123: arc segment

130: the joint line 131: first riding seam line

132: second stitch line 133: third joint line

1301: gap

x: crack(s)

R: a starting point S: terminal point

O: midpoint

A: tearing off the rear section area B: tearing off the front section area

PQ: virtual connecting line P: starting endpoint

Q: terminating endpoint

a: a routing direction b: the starting point R points in the direction of the end point S

T: perpendicular bisector

d 1: first interval d 2: second interval

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments of the present application. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. The embodiments of this application can be implemented in many different ways than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the invention and therefore the embodiments of this application are not limited to the specific embodiments disclosed below.

It is to be understood that the terms "first," "second," "third," and the like as used herein may be used herein to describe various terms of art, and are not to be construed as indicating or implying relative importance or implicit ly or indicating a number of technical features being indicated. However, these terms are not intended to be limiting unless specifically stated. These terms are only used to distinguish one term from another. For example, the first interval and the second interval are different intervals, and the first, second, and third stitch sub-lines are different stitch sub-lines, without departing from the scope of the present application. In the description of the embodiments of the present application, "a plurality" or "a plurality" means at least two, e.g., two, three, etc., unless specifically defined otherwise.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely below the second feature, or may simply mean that the first feature is at a lesser level than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

In the related art, a protective film is often attached to a display panel of an electronic device to prevent the display panel from being damaged by unrecoverable damage such as breaking or scratching during use. In the process of assembling the electronic device, when the touch display module is assembled with other components, the camera hole position on the display panel in the touch display module is usually utilized for alignment, and at this time, the protective film on the camera hole position needs to be removed, so that the camera hole position is exposed, and the subsequent alignment step is performed.

Fig. 1 is a schematic view illustrating a structure of a protective film 100 in an embodiment of the related art; fig. 2 is a schematic view illustrating a structure of the protective film 100 that is broken during the tearing process in an embodiment of the related art; fig. 3 is a schematic structural diagram illustrating a fracture of the protective film 100 due to an external factor in an embodiment of the related art.

Referring to fig. 1, an embodiment of the related art provides a protective film 100, where the protective film 100 includes a protective film body 110 and at least one tearing film 120 connected to the protective film body 110. In order to facilitate the removal of the tear film 120 from the protective film body 110, a joint of the protective film body 110 and the main body portion 121 is provided with a seam line 130. However, the inventors of the present application have found that when the gap between the parting lines 130 is too large, the protective film 100 is likely to break and crack x is generated in the parting rear section region a as shown in fig. 2, and when the gap between the parting lines 130 is too small, the protective film is likely to crack due to external factors (e.g., force generated when the parting line collides with the region) in the parting front section region B (i.e., the region near the parting section 122 in fig. 3) as shown in fig. 3. The tear-off rear-stage region a refers to a region of the protective film body 110 corresponding to the rear stage when the tear-off film is torn off along the parting line 130. For example, for convenience of explanation, the left side of the drawing sheet of fig. 3 and the right side of the drawing sheet are defined, taking the midpoint O of the length of the parting line 130 as an example, the region of the protective film body 110 located on the right side of the midpoint O is the tear-off front section region B, and the region of the protective film body 110 located on the left side of the midpoint O is the tear-off rear section region a.

Fig. 4 shows a schematic structural diagram of the protective film 100 in an embodiment of the present application; fig. 5 shows a schematic diagram of a partial enlarged structure at G in fig. 4 in an embodiment of the present application.

Referring to fig. 4, the protection film 100 according to the embodiment of the present application includes a protection film body 110 and at least one tear-off film 120, and the number of the tear-off films 120 may be set according to actual needs, for example, fig. 4 exemplarily shows a case where one tear-off film 120 is provided, and the embodiment of the present application is not particularly limited thereto. The tearing film 120 comprises a main body part 121 and a tearing part 122, the main body part 121 is connected with the protective film body 110, the tearing part 122 is connected with the main body part 121, and a joint of the main body part 121 and the protective film body 110 is provided with a riding line 130; the saddle line 130 includes a plurality of slits 1301 arranged at intervals in the running direction a of the saddle line 130, and the saddle line 130 has a starting point R and an end point S, and as shown in fig. 5, a first interval d1 between the slits 1301 in the saddle line 130 near the starting point R is larger than a second interval d2 between the slits 1301 in the saddle line 130 near the end point S in the running direction a of the saddle line 130. Since the first interval d1 is large, the tearing resistance is relatively large, and the region near the tearing portion 122 can be prevented from being cracked due to external factors, and since the second interval d2 is small, the tearing resistance is relatively small, and the protective film 100 can be prevented from being broken when the tearing back section region a of the protective film 100 is torn. That is, different intervals may be provided according to different positions to prevent the protective film 100 from being cracked at different positions. Note that the distance from the slit 1301 to the starting point R or the end point S in the saddle stitch line 130 is calculated along the running direction a of the saddle stitch line 130, and is not measured as a straight distance between two points. That is, for a slit 1301 close to the starting point R, the slit 1301 is far from the end point S.

The structure of each part of the protection film 100 will be further described in detail with reference to the accompanying drawings.

Fig. 6 shows a schematic structural diagram of a protective film 100 in a further embodiment of the present application.

In order to facilitate the tearing process, in some embodiments, as shown in fig. 4 and 5, a line connecting the starting point R and the ending point S is collinear with one side of the protective film 100, that is, the tearing film 120 is located on one side of the protective film 100 and is not adjacent to the other side of the protective film 100. Of course, in other embodiments, the line connecting the starting point R and the end point S is not collinear with one side of the protection film 100, and in this case, as an embodiment, as shown in fig. 6, the tear-off film 120 is located on one side of the protection film 100 and is adjacent to the other side of the protection film 100. It should be noted that some of the above embodiments are only exemplary cases, and the positional relationship between the tear-off film 120 and the protection film 100 may be set according to specific situations, and this is not specifically limited in this application example.

In order to better apply the tearing force to the starting point R, in some embodiments, referring to fig. 5 again, the tearing portion 122 is disposed offset from the center of the main body 121, and since the tearing portion 122 is disposed offset, it is convenient to tear from the starting point R, the tearing process is more smooth, and it is also convenient to apply the tearing force to the tear film 120. Specifically, in some embodiments, referring to fig. 5 again, the main body portion 121 is disposed symmetrically with respect to a perpendicular bisector T perpendicular to a line between the starting point R and the end point S, and the tearing portion 122 is located on one side of the perpendicular bisector T along a direction b from the starting point R to the end point S.

In some embodiments, as shown in fig. 5, the tear-off portion 122 and the body portion 121 have a virtual connection line PQ, which has two ends, namely, a start end P and a stop end Q. The dummy connection line PQ is used to distinguish two portions of the tear-off portion 122 and the body portion 121, and the shape of the tear-off portion 122 and the shape of the body portion 121 may be rectangular, circular, or the like, with the dummy connection line PQ as a boundary, and may be set according to the use requirement, which is not particularly limited in the embodiment of the present application. It is understood that the two end points of the virtual connection line PQ may coincide with the start point R and the end point S, respectively, or may not coincide with the start point R and the end point S, or one of the two end points of the virtual connection line PQ may coincide with one of the start point R and the end point S, and the other of the two end points of the virtual connection line PQ may not coincide with the other of the start point R and the end point S. For example, as shown in fig. 5, when the starting point P of the virtual connection line PQ coincides with the starting point R and the ending point Q of the virtual connection line PQ does not coincide with the ending point S, the tearing operation is performed by the tearing unit 122, that is, when the starting point R (starting point P) is set as the tearing starting point and the ending point S is set as the tearing ending point, the interval between the slits 1301 in the suture line 130 near the starting point R is the first interval d1 and the interval between the slits 1301 in the suture line 130 near the ending point S is the second interval d 2. For example, as shown in fig. 6, when the starting point P of the virtual connection line PQ coincides with the starting point R and the ending point Q of the virtual connection line PQ coincides with the ending point S, and the tearing operation is performed by the tearing section 122, that is, the starting point P and the ending point Q serve as tearing starting points, the interval between the slits 1301 in the suture line 130 close to the starting point P and the ending point Q is the first interval d1, and the interval between the slits 1301 in the suture line 130 far from the starting point P and the ending point Q is the second interval d 2. In this manner, the first interval d1 can prevent the protective film 100 from being broken at the starting point R, and the second interval d2 can facilitate the tearing of the protective film 100 from the rear stage due to the tearing action. It should be noted that the foregoing embodiments are merely exemplary, and the relationship between the starting end point P and the ending end point Q of the virtual connection line PQ and the starting point R and the ending point S may be set according to specific situations, as long as the setting relationship that the first interval d1 is greater than the second interval d2, which is provided in the embodiments of the present application, is satisfied, and the embodiments of the present application are not particularly limited in this respect. As an embodiment, with reference to fig. 5, a connection line between the starting point R and the end point S is collinear with one side of the protection film 100, and the connection line between the starting point R and the end point S coincides with the virtual connection line PQ, so that a structure that can make the tearing motion smoother is obtained.

FIG. 7 shows a schematic view of the structure of a suture line 130 in an embodiment of the present application; FIG. 8 shows a schematic view of the structure of a suture line 130 in a further embodiment of the present application.

When the main body part 121 is symmetrically disposed with a perpendicular bisector T perpendicular to a line connecting the start point R and the end point S, and the tear-off part 122 is disposed offset from the center of the main body part 121, in order to meet the requirement of design and the use requirement, in some embodiments, referring again to fig. 5, the saddle stitch line 130 includes a first saddle stitch sub-line 131, a second saddle stitch sub-line 132 symmetrically disposed with the perpendicular bisector T, and a third saddle stitch sub-line 133 perpendicular to the perpendicular bisector T and connecting the first saddle stitch sub-line 131 and the second saddle stitch sub-line 132. In particular, in some embodiments, the first, second, and third

stitchless lines

131, 132, 133 may be at least one or more of straight, zig-zag, curved, and serpentine. The shapes of the first, second, and third perforation sub-lines 131, 132, and 133 form the shape of the joint between the main body 121 of the tear-off film 120 and the main body of the protective film 100, and the shape of the joint where the main body of the protective film 100 is located can be obtained as needed according to the shapes of the first, second, and third perforation sub-lines 131, 132, and 133. For example, as shown in FIG. 5, the first, second, and

third rider lines

131, 132, 133 are all straight bars. For example, as shown in fig. 7, the first and second

joint lines

131 and 132 are straight, and the third joint line 133 is arc. For another example, as shown in FIG. 8, the first, second, and third rider sub-lines 131, 132, 133 are all arcuate, collectively forming a semi-arcuate structure of the rider line 130. It should be noted that some of the above embodiments are merely exemplary cases, and the shape of the seam line 130 may be set according to specific situations, and this is not particularly limited in the examples of the present application.

It should be noted that, the above embodiments are only examples, and the connection manner between the tear-off film 120 and the protective film body 110 and the number of the tear-off films 120 may be set according to a required tear-off path, which is not specifically limited in the examples of the present application.

As a result of further research by the inventors of the present application, in order to facilitate the tearing process, the first interval d1 and the second interval d2 may be set to satisfy a preset condition, which includes: d1-d2 is more than or equal to 0.05 mm. In particular, in some embodiments, d1 is 0.3 mm and d2 is 0.25 mm. In some embodiments, the length of gap 1301 in the saddle stitch line 130 near the starting point R is greater than the length of gap 1301 in the saddle stitch line 130 near the ending point S in the running direction a of the saddle stitch line 130. That is, not only the intervals between the slits 1301 in the saddle line 130 may be set to unequal intervals, but also the lengths of the slits 1301 in the saddle line 130 may be set to unequal intervals. Accordingly, the design consideration of the length of the slit 1301 is similar to the design consideration of the pitch between the slits 1301, and both of them satisfy the condition that the tear front end has a large pitch and the tear rear end has a small pitch. It should be noted that the large pitch and the small pitch mentioned here are relative concepts, and refer to a relationship in which the length of the slit 1301 in the tear-off front section of the saddle stitch line 130 is greater than the length of the slit 1301 in the tear-off rear section of the saddle stitch line 130.

It should be noted that, in the embodiment of the present application, it is only necessary to satisfy that the saddle stitch line 130 located at the front tearing section has a large pitch and the saddle stitch line 130 located at the rear tearing section has a small pitch, and the length of the slit 1301 and the interval between the slits 1301 in the saddle stitch line 130 therebetween may be set in such a manner as to gradually decrease along the tearing path, and may also be set in such a manner as to be both small pitches, which is not particularly limited by the embodiment of the present application. The rider thread 130 includes a plurality of slits 1301 arranged at intervals along the running direction of the rider thread 130, that is, the rider thread 130 includes the slits 1301 and the intervals between the slits 1301. The slot 1301 may be in the form of, for example, a straight segment, a circular hole, an arcuate segment, or the like. For example, when the slit 1301 is a straight line segment, the length of the slit 1301 is the length of the straight line segment, and the interval between the slits 1301 is the distance between two adjacent end points of two adjacent straight line segments. For another example, when the slit 1301 is a circular hole, the length of the slit 1301 is the diameter of the circular hole, and the interval between the slits 1301 is the distance between two adjacent circular holes. Regarding the specific shape of the slit 1301, it can be set according to the actual use requirement and the shape of the seam line 130, and the embodiment of the present application does not specifically limit this.

In some embodiments, a release film may be further disposed on the surface of the protection film 100, and may be used to protect the protection film 100 to prevent the protection film 100 from being damaged by an external force.

Based on the same inventive concept, the present application provides a touch display module, which includes a display panel and the protection film 100 in the above embodiments. The protection film 100 covers the display panel, and the tearing portion 122 is located outside the display panel. In some embodiments, the main body portion 121 is aligned with a camera hole area on the display panel. Of course, in other embodiments, the main body portion 121 may also be disposed at a speaker area, a microphone area, an ambient light sensor area, and the like on the display panel, which may be specifically set according to requirements and is not specifically limited in this embodiment of the application. When the protective film 100 is attached to the display panel, the tear-off film 120 is torn off, so that an area of the display panel that needs to be exposed can be avoided, and the influence of the protective film 100 on the area can be reduced. Thus, other regions of the display panel can be continuously protected by only peeling the peeling film 120 without peeling the entire protective film 100.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A protective film, comprising:

a protective film body; and

2. The protective film according to claim 1, wherein a line connecting the starting point and the ending point is collinear with a side edge of the protective film.

3. The protective film according to claim 2, wherein a virtual connecting line is provided between the tear-off portion and the main body portion;

4. The protective film of claim 2 or 3, wherein the tear-away portion is offset from a center of the body portion.

5. The protective film according to claim 4, wherein the main body portion is provided symmetrically with respect to a perpendicular bisector perpendicular to a line connecting the start point and the end point;

6. The protective film according to claim 5, wherein the joint line includes a first joint line, a second joint line, and a third joint line perpendicular to the perpendicular bisector and connecting the first joint line and the second joint line.

7. The protective film according to claim 1, wherein the first spacing d1 and the second spacing d2 satisfy a preset condition, the preset condition comprising:

d1-d2 is more than or equal to 0.05 mm.

8. The protective film according to claim 7, wherein the predetermined conditions are in particular:

d 1-0.3 mm and d 2-0.25 mm.

9. The protective film according to claim 1, wherein a length of a gap in the rider-stitch line near the starting point is greater than a length of a gap in the rider-stitch line near the ending point in a running direction of the rider-stitch line.

10. A touch display module comprising a display panel and the protective film according to any one of claims 1 to 9; the protective film is covered on the display panel, and the tearing part is positioned outside the display panel.

11. The touch display module of claim 10, wherein the main body is located in a camera hole area on the display panel.