CN115124934A

CN115124934A - Shading adhesive tape, display panel, display device and electronic equipment

Info

Publication number: CN115124934A
Application number: CN202210758133.XA
Authority: CN
Inventors: 刘江林
Original assignee: Yihong Technology Co ltd; Yihong Technology Chengdu Co ltd
Current assignee: Yihong Technology Co ltd; Yihong Technology Chengdu Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-09-30
Anticipated expiration: 2042-06-30
Also published as: CN115124934B

Abstract

The application relates to a shading adhesive tape, a display panel, a display device and electronic equipment, the shading adhesive tape is used for the display panel, the display panel is provided with an accommodating groove, the accommodating groove is provided with a notch penetrating through at least one side of the display panel, the shading adhesive tape comprises a shading layer and an adhesive layer, the shading layer comprises a shading area and a fixing area at least partially surrounding the shading area, the shading area is used for covering the notch, the adhesive layer is arranged on one side, facing the notch, of the shading layer and used for fixing the shading layer to the notch, the adhesive layer at least partially covers the fixing area, and the covering area of the adhesive layer on the shading layer is not overlapped with the fixing area; wherein, the side of the bonding layer facing the notch is convex relative to the shading area. This shading sticky tape can solve present shading sticky tape and can cause the problem of damage to the fingerprint identification module.

Description

Shading adhesive tape, display panel, display device and electronic equipment

Technical Field

The application relates to the technical field of display, in particular to a shading adhesive tape, a display panel, a display device and electronic equipment.

Background

The technology of fingerprint identification under the screen is a technology of installing a fingerprint identification module below a display screen. Usually, set up the opening in the downside of display screen, install the fingerprint identification module in the opening to, in order to protect opening department, set up shading sticky tape usually and cover the opening with the fingerprint identification module that is arranged in the opening. But the setting of shading sticky tape, when the reinforcing has been to the protection of opening part, also causes the damage to the fingerprint identification module because of reasons such as friction, static easily.

Disclosure of Invention

Therefore, the shading tape, the display panel, the display device and the electronic device are needed to solve the problem that the shading tape damages the fingerprint identification module.

According to an aspect of the present application, there is provided a display device for a display panel, the display panel being provided with a receiving groove, the receiving groove having a notch penetrating at least one side of the display panel, the light-shielding tape comprising: the light shielding layer comprises a light shielding area and a fixing area at least partially surrounding the light shielding area, and the light shielding area is used for covering the notch; the bonding layer is arranged on one side, facing the notch, of the light shielding layer and used for fixing the light shielding layer at the notch, at least part of the bonding layer covers the fixing area, and the covering area of the bonding layer on the light shielding layer is not overlapped with the fixing area; wherein, the side of the bonding layer facing the notch is convex relative to the shading area.

In some embodiments, the fixing region annularly surrounds the shading region; the adhesive layer partially or completely covers the fastening region.

In some embodiments, the fixation region has opposing lateral and medial sides with a spacing of 1.5mm to 5mm therebetween.

In some embodiments, the thickness of the bonding layer protruding relative to the light shielding layer is 1mm to 3 mm.

In some embodiments, the elastic modulus of the light-shielding tape is greater than or equal to 4000 MPa.

According to an aspect of the present application, there is provided a light shielding tape for a display panel, the display panel is provided with a receiving groove, the receiving groove has a notch penetrating at least one side of the display panel, the light shielding tape includes: the shading layer is used for covering the notch; the bonding layer is arranged on one side, facing the notch, of the light shielding layer and is used for fixing the light shielding layer at the notch; wherein, the orthographic projection of the adhesive layer on the light shield layer completely covers the orthographic projection of the edge of the notch on the light shield layer, and the adhesive layer comprises an antistatic layer.

In some embodiments, the size of the adhesive layer is greater than or equal to 20mm x 30 mm; the bonding layer comprises foam.

According to another aspect of the present application, there is provided a display panel including: the display module is provided with a display side and a back side which are opposite, and the display module is provided with an accommodating groove which is provided with a notch penetrating through the back side; the fingerprint identification module is arranged in the accommodating groove; the light-shielding tape is attached to the back side and covers the notch.

According to another aspect of the present application, there is provided a display device including the display panel as described above.

According to another aspect of the application, an electronic device is provided, which comprises the display device as described above.

The shading sticky tape that this application embodiment provided, through set up shading area and at least partial fixed area that surrounds around shading area on the light shield layer to set up the notch department that the adhesive linkage fixes the light shield layer at display panel's holding tank, make the adhesive linkage at least partially cover the fixed area, and the adhesive linkage is in the coverage area on the light shield layer and the fixed area non-overlapping, thereby utilize shading area to cover display panel's notch, utilize the adhesive linkage to be fixed in the light shield layer on display panel simultaneously. Based on this, it is protruding to further set up the relative shading district in one side of adhesive linkage orientation notch for when the light shield layer is fixed on display panel, in shading sticky tape and display panel's range upon range of direction, there is the clearance between shading district and the display panel, thereby avoids shading sticky tape and the part direct contact that sets up in the display panel notch and produces friction or static, reduces the damage of the part that sets up in the shading sticky tape to the display panel notch.

Drawings

FIG. 1 is a schematic view of a display panel according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a light-shielding tape according to an embodiment of the present application;

FIG. 3 is a schematic view of the masking tape of FIG. 2 from another perspective;

FIG. 4 is a schematic structural view of a light-shielding layer of a light-shielding tape according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural view of a light-shielding tape according to an embodiment of the present application;

FIG. 6 is a schematic structural view of a light-shielding tape according to an embodiment of the present application;

FIG. 7 is a schematic structural view of a light-shielding tape according to an embodiment of the present application;

FIG. 8 is a schematic structural view of a masking tape according to an embodiment of the present application;

FIG. 9 is a schematic view of the masking tape of FIG. 8 from another perspective;

FIG. 10 is a schematic structural view of a light-shielding tape according to an embodiment of the present application;

FIG. 11 is a schematic view of a light-shielding tape according to an embodiment of the present application;

FIG. 12 is a schematic view of a light-shielding tape according to an embodiment of the present application;

FIG. 13 is a schematic view of an embodiment of a light-shielding tape;

fig. 14 is a schematic structural view of the light-shielding tape in fig. 13 from another viewing angle.

The reference numbers illustrate:

10: display panel 212: fixing area

11: the accommodation grooves 212 a: outer side edge

20: light-shielding tape 212 b: inner side edge

21: light-shielding layer 22: adhesive layer

211: light-shielding region 23: handle bar

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; 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 meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that 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 under the first feature, or may simply mean that the first feature is at a lesser elevation 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In the current electronic equipment, the requirement on the screen occupation ratio is higher and higher, and the area of the frame area is smaller and smaller, so that the function module originally arranged in the frame area has to be adjusted correspondingly. Take the cell-phone as an example, because the frame district area is little, does not have sufficient space installation fingerprint identification module, consequently, developed and installed fingerprint identification module under the screen of display screen below fingerprint identification technology. It can be understood that display module assembly includes relative demonstration side and dorsal part, and fingerprint identification technique specifically sets up the opening at display module assembly's dorsal part under the screen, places the fingerprint identification module in the opening to it is fixed with fingerprint identification module and display module assembly bonding through the double faced adhesive tape.

Because the orthographic projection area of fingerprint identification module on display module assembly is less than the orthographic projection area of open-ended edge on display module assembly, there is the clearance between fingerprint identification module and the open-ended edge promptly for after fingerprint identification module and display module assembly bonding are fixed, the partial inner structure of display module assembly can expose outside, thereby influences display module assembly's demonstration function. For example, when the display module is an Organic Light-Emitting Diode (OLED), the OLED exposed in the external environment may be irradiated by ultraviolet rays or contaminated by dust particles, so that the display function of the OLED is affected.

Based on this, need cover whole opening through the shading sticky tape after fingerprint identification module and display module bonding are fixed, play shading, dustproof effect. But paste the mode that shading sticky tape covers the fingerprint identification module at the opening part, when the reinforcing had been to the protection of opening part, also because shading sticky tape can produce the friction with the fingerprint identification module, cause wearing and tearing or cause the electrostatic damage to the fingerprint identification module.

For solving above-mentioned problem, this application embodiment provides a shading sticky tape, sets up the shading sticky tape into by the range upon range of form of light shield layer and adhesive linkage, and it is fixed with the display module group bonding through the adhesive linkage, and the adhesive linkage that adopts the antistatic material replaces light shield layer and fingerprint identification module group contact, perhaps, adhesive linkage and light shield layer all do not contact with the fingerprint identification module group to avoid the light shield layer to cause the damage to the fingerprint identification module group.

Fig. 1 shows a schematic structural diagram of a display panel in an embodiment of the present application. Fig. 2 shows a schematic structural diagram of a light-shielding tape in an embodiment of the present application. Fig. 3 is a schematic view of the light-shielding tape of fig. 2 from another perspective.

Referring to fig. 1 to 3, an embodiment of the disclosure provides a light-shielding tape 20 for a display panel 10, in which a receiving groove 11 is disposed on the display panel 10, and the receiving groove 11 has a notch penetrating at least one side of the display panel 10. Wherein, holding tank 11 can be used to hold the fingerprint identification module, and holding tank 11's shape can be circular, polygon or its combination. The receiving groove 11 has a notch penetrating at least one side of the display panel 10, including the receiving groove 11 having a notch penetrating one side of the display panel 10, and the receiving groove 11 having notches penetrating opposite sides of the display panel 10. Preferably, the display panel 10 has opposite display and back sides, and the receiving groove 11 has a notch penetrating through the back side of the display panel 10.

In some embodiments, the light-shielding tape 20 includes a light-shielding layer 21 and an adhesive layer 22, the light-shielding layer 21 includes a light-shielding region 211 and a fixing region 212 at least partially surrounding the light-shielding region 211, the light-shielding region 211 is used for covering the notch, the adhesive layer 22 is disposed on a side of the light-shielding layer 21 facing the notch and is used for fixing the light-shielding layer 21 to the notch, the adhesive layer 22 at least partially covers the fixing region 212, and a covering area of the adhesive layer 22 on the light-shielding layer 21 does not overlap with the fixing region 212; wherein, the side of the adhesive layer 22 facing the notch is convex relative to the light shielding region 211.

Specifically, the edge of the light-shielding tape 20 is adhesively fixed to the area of the display panel 10 near the edge of the receiving groove 11, and the middle of the light-shielding tape 20 covers the notch of the receiving groove 11, and based on this, the area of the light-shielding tape 20 opposite to the notch of the receiving groove 11 is the light-shielding area 211, and the area opposite to the area of the display panel 10 near the edge of the receiving groove 11 is the fixing area 212. The material of the adhesive layer 22 is the same as or different from that of the light-shielding layer 21.

The light-shielding tape 20 provided by the embodiment of the application is characterized in that the light-shielding region 211 and the fixing region 212 at least partially surrounding the light-shielding region 211 are arranged on the light-shielding layer 21, the adhesive layer 22 is arranged to fix the light-shielding layer 21 at the notch of the accommodating groove 11 of the display panel 10, the adhesive layer 22 at least partially covers the fixing region 212, the covering area of the adhesive layer 22 on the light-shielding layer 21 is not overlapped with the fixing region 212, the notch of the display panel 10 is covered by the light-shielding region 211, and the light-shielding layer 21 is fixed on the display panel 10 by the adhesive layer 22. Based on this, the side of the adhesive layer 22 facing the notch is further provided to protrude relative to the light-shielding region 211, so that when the light-shielding layer 21 is fixed on the display panel 10, a gap exists between the light-shielding region 211 and the display panel 10 in the stacking direction of the light-shielding tape 20 and the display panel 10, thereby preventing the light-shielding tape 20 from directly contacting with components arranged in the notch of the display panel 10 to generate friction or static electricity, and reducing damage of the arrangement of the light-shielding tape 20 to the components arranged in the notch of the display panel 10.

Fig. 4 is a schematic structural diagram illustrating a light shielding layer of the light shielding tape according to an embodiment of the present disclosure.

Referring to fig. 4, the fixed region 212 at least partially surrounds the light-shielding region 211, including the fixed region 212 partially surrounding the light-shielding region 211 and the fixed region 212 completely surrounding the light-shielding region 211. For example, the light-shielding region 211 has a quadrilateral shape, and the fixed region 212 is disposed corresponding to one or more sides of the light-shielding region 211.

Fig. 5 shows a schematic structural diagram of a light-shielding tape in an embodiment of the present application.

Referring to fig. 4 and 5, in an embodiment, the light-shielding tape 20 includes a light-shielding layer 21 and an adhesive layer 22, the light-shielding layer 21 includes a light-shielding region 211 and a fixing region 212, the light-shielding region 211 is quadrilateral, and the fixing region 212 surrounds the light-shielding region 211, i.e., the fixing region 212 is quadrilateral ring-shaped. The light shielding region 211 is used for covering the notch, the fixing region 212 is used for the adhesive layer 22 to be adhered and fixed, the adhesive layer 22 is arranged on one side of the light shielding layer 21 facing the notch, and the adhesive layer 22 covers three sides of the quadrangular annular fixing region 212, so that when the light shielding tape 20 is adhered and fixed at the notch of the accommodating groove 11, the light shielding tape 20 is adhered and sealed on the three sides around the notch, and the remaining one side is open, thereby being beneficial to the flexible circuit board or other structures to be connected with the components in the accommodating groove 11 through the flexible circuit board or other structures.

In other embodiments, the adhesive layer 22 may be disposed to cover two sides of the quadrangular ring-shaped fixing region 212, or may be disposed to cover four sides of the quadrangular ring-shaped fixing region 212, and one or more sides may not completely cover the quadrangular ring-shaped fixing region, so as to form one or more openings for connecting the components in the receiving groove 11 with other components.

In other embodiments, the light-shielding region 211 may also be configured as a circle, an ellipse, a triangle, or a combination thereof. Correspondingly, the adhesive layer 22 may cover the fixing region 212 completely, or cover the fixing region 212 partially to form an opening communicating the inside and the outside of the receiving groove 11.

Fig. 6 shows a schematic structural diagram of a light-shielding tape in an embodiment of the present application.

Referring to fig. 6, in some embodiments, the light shielding layer 21 includes two or more light shielding portions, each spaced apart from each other, each adhered to the adhesive layer 22. The gaps between the parts in the accommodating groove 11 and the side walls of the accommodating groove 11 are covered by the plurality of light shielding parts, so that the display panel 10 can be protected, the display panel 10 is prevented from exposing the internal structure due to the opening of the accommodating groove 11, and the shape and the number of the light shielding parts can be adjusted according to actual conditions. Specifically, the shape of the light shielding portion is a triangle, a quadrangle, a circle, an ellipse, or a combination thereof.

Fig. 7 shows a schematic structural diagram of a light-shielding tape in an embodiment of the present application.

Referring to fig. 4 and 7, the embodiment shown in fig. 7 combines the embodiments shown in fig. 5 and 6. Specifically, the light-shielding layer 21 includes a light-shielding region 211 and a fixing region 212, the light-shielding region 211 is quadrilateral, and the fixing region 212 surrounds the light-shielding region 211, i.e., the fixing region 212 is quadrilateral ring. The light-shielding region 211 is used for covering the notch, the fixing region 212 is used for the adhesive layer 22 to be adhered and fixed, the adhesive layer 22 is arranged on one side of the light-shielding layer 21 facing the notch, and the adhesive layer 22 covers three sides of the fixing region 212 in the shape of a quadrilateral ring. The light shielding layer 21 includes two light shielding portions each spaced apart from the other, and each light shielding portion is bonded to the adhesive layer 22. In this way, the form of the light shielding layer 21 is more flexible, and the connection of the components in the housing groove 11 to other components can be facilitated.

Fig. 8 shows a schematic structural diagram of a light-shielding tape in an embodiment of the present application. Fig. 9 is a schematic view of the masking tape of fig. 8 from another perspective.

Referring to fig. 4, 8 and 9, in some embodiments, the fixing region 212 annularly surrounds the light-shielding region 211, and the adhesive layer 22 partially covers the fixing region 212. Referring to fig. 2, 3 and 4, in other embodiments, the fixing region 212 annularly surrounds the light-shielding region 211, and the adhesive layer 22 completely covers the fixing region 212. Because the fixing region 212 is annular and completely surrounds the shading region 211, the adhesive layer 22 completely covers the fixing region 212, so that the contact area between the adhesive layer 22 and the shading layer 21 is maximized, and the connection stability between the adhesive layer 22 and the shading layer 21 is improved.

Further, the fastening region 212 has opposing lateral and

medial sides

212a, 212b, with a spacing between the lateral and

medial sides

212a, 212b of 1.5mm to 5 mm. Since the area of the fixing region 212 corresponds to the bonding area between the light shielding tape 20 and the display panel 10, the size of the gap between the outer edge 212a and the inner edge 212b of the fixing region 212 affects the bonding area between the light shielding tape 20 and the display panel 10, and the larger the bonding area between the light shielding tape 20 and the display panel 10 is, the more stable the bonding effect is, but if the bonding area is too large, the larger the space on the display panel 10 is occupied, and the light shielding material is wasted. Based on this, in the light-shielding tape 20 provided in the embodiment of the present application, the distance between the outer side 212a and the inner side 212b of the fixing region 212 is set to be 1.5mm to 5mm, so that the bonding effect between the light-shielding tape 20 and the display panel 10 is ensured to be stable, the space occupied by the light-shielding tape 20 on the display panel 10 is reduced, the consumption of light-shielding materials is reduced, and the cost is saved.

In some embodiments, the bonding layer 22 protrudes from the light shield layer 21 by a thickness of 1mm to 3 mm. It can be understood that, the larger the protruding thickness of the adhesive layer 22 relative to the light-shielding layer 21 is, the larger the distance between the light-shielding layer 21 and the module disposed in the receiving groove 11 of the display panel 10 is, i.e. the smaller the probability of mutual friction or electrostatic generation between the light-shielding layer 21 and the module disposed in the receiving groove 11 of the display panel 10 is. However, if the thickness of the adhesive layer 22 protruding from the light-shielding layer 21 is too large, the thickness of the light-shielding tape 20 becomes too large, and the overall thickness of the display panel 10 increases. Based on this, in the light-shielding tape 20 provided in the embodiment of the present application, the thickness of the protrusion of the adhesive layer 22 relative to the light-shielding layer 21 is set to be 1mm to 3mm, so that the probability that the light-shielding tape 20 damages components in the display module accommodating groove 11 is reduced, and the thickness of the display panel 10 is ensured to be low.

In some embodiments, the elastic modulus of the light-shielding tape 20 is greater than or equal to 4000 MPa. Because the adhesive layer 22 of the light-shielding tape 20 protrudes relative to the light-shielding layer 21, after the light-shielding tape 20 is attached to the display panel 10, a gap exists between the light-shielding layer 21 and a module disposed in the accommodating groove 11 of the display panel 10, that is, the light-shielding layer 21 is not supported by the display panel 10 and is in a suspended state, and the light-shielding layer 21 needs to be prevented from collapsing by the strength of the light-shielding tape 20 itself. The elastic modulus of the shading adhesive tape 20 is set to be more than or equal to 4000MPa, so that after the shading adhesive tape 20 is attached to the display panel 10, the shading layer 21 can be kept and arranged in the module in the accommodating groove 11 of the display panel 10 in an alternate state, and the shading layer 21 is prevented from collapsing in the using process of the subsequent display panel 10 to damage the module in the accommodating groove 11 of the display panel 10.

In some embodiments, the light-shielding tape 20 further includes a handle 23, and specifically, the handle 23 is disposed on an edge of the light-shielding layer 21 and protrudes relative to an edge of the light-shielding layer 21, or the handle 23 is disposed on an edge of the adhesive layer 22 and protrudes relative to an edge of the adhesive layer 22, so as to facilitate handling and pasting of the light-shielding tape 20.

Further, the light-shielding tape 20 further includes a release film disposed on a side of the adhesive layer 22 opposite to the light-shielding layer 21. By arranging the release film on the side of the adhesive layer 22 opposite to the light shielding layer 21, the light shielding tape 20 can be stored and transported conveniently, and the adhesive layer 22 of the light shielding tape 20 is prevented from being polluted in the process of storage and transportation.

In one embodiment, the light-shielding tape 20 includes a light-shielding layer 21 and an adhesive layer 22, the light-shielding layer 21 includes a light-shielding region 211 and a fixing region 212, and the fixing region 212 surrounds the light-shielding region 211 in a zigzag manner. The size of the light-shielding tape 20 is less than or equal to 20mm × 30mm, and the elastic modulus of the light-shielding tape 20 is greater than or equal to 4000Mpa, so as to prevent the light-shielding tape 20 from being too soft and collapsing at the notch of the accommodating groove 11, and thus prevent the light-shielding tape 20 from contacting the module in the accommodating groove 11. The light-shielding tape 20 is made of an antistatic material, and the whole light-shielding tape 20 can be spliced into a desired shape through a plurality of scattered parts, for example, two independent parts are adopted between the light-shielding layer 21 and the adhesive layer 22 to be attached to form the light-shielding tape 20, four sides of the adhesive layer 22 formed in a shape like a Chinese character 'hui' are respectively independent parts, and the four sides are spliced and combined to form a shape like a Chinese character 'hui'. Alternatively, the entire light-shielding tape 20 is formed by hot stamping.

In one embodiment, the light-shielding tape 20 includes a light-shielding layer 21 and an adhesive layer 22, the light-shielding layer 21 includes a light-shielding region 211 and a fixing region 212, and the fixing region 212 surrounds the light-shielding region 211 in a zigzag manner. The size of the light-shielding tape 20 is 20mm × 30mm to 40mm × 50mm, and the elastic modulus of the light-shielding tape 20 is greater than or equal to 4000 Mpa. The shading tape 20 is made of an antistatic material, the adhesive layer 22 is made of foam, and the shading layer 21 is attached to the foam in a shape like a Chinese character hui to form the shading tape 20. The square-shaped foam is used as the bonding layer 22, the elastic modulus of the shading tape 20 is larger than or equal to 4000Mpa, and the shading tape 20 is prevented from being too soft and collapsing at the notch of the accommodating groove 11, so that the shading tape 20 is prevented from contacting with a module in the accommodating groove 11.

Fig. 10 shows a schematic structural view of the light shielding tape in an embodiment of the present application. Fig. 11 shows a schematic structural view of a light-shielding tape in an embodiment of the present application. Fig. 12 is a schematic structural view of a light-shielding tape according to an embodiment of the present application.

The embodiment shown in fig. 10 is different from the embodiment shown in fig. 9 in that the adhesive layer 22 of the embodiment shown in fig. 9 has a ring shape and a quadrangular shape, and the adhesive layer 22 of the embodiment shown in fig. 10 has one reduced side on the basis of the ring-shaped quadrangular shape to form an opening for connecting the components in the receiving groove 11 with other components.

The embodiment shown in fig. 11 is different from the embodiment shown in fig. 9 in that a strip-shaped bonding portion is added to the bonding layer 22 of the embodiment shown in fig. 10 on the basis of the annular quadrangle, and two ends of the strip-shaped bonding portion are respectively connected with two opposite sides of the quadrangle or connected with two opposite corners of the quadrangle. Specifically, the stripe-shaped bonding part may be foam, so as to enhance the supporting effect on the light shielding layer 21 and reduce the probability of the light shielding layer 21 collapsing.

The embodiment shown in fig. 12 is a combination of the embodiment shown in fig. 10 and the embodiment shown in fig. 11, specifically, the shape of the adhesive layer 22 is that one side is reduced on the basis of a circular quadrilateral, a long side and two short sides connected to two ends of the long side are formed, and a strip-shaped adhesive part is added, one end of the strip-shaped adhesive part is connected to the middle of the long side, so that the components in the accommodating groove 11 can be conveniently connected with other components, and the probability of the light shielding layer 21 collapsing is reduced.

In view of the same purpose, the present application provides a light-shielding tape 20, the light-shielding tape 20 is used for a display panel 10, an accommodating groove 11 is formed on the display panel 10, and the accommodating groove 11 has a notch penetrating at least one side of the display panel 10.

Fig. 13 shows a schematic structural view of a light-shielding tape in an embodiment of the present application. Fig. 14 is a schematic view of the light-shielding tape of fig. 13 from another perspective.

Referring to fig. 13 and 14, in some embodiments, the light shielding tape 20 includes a light shielding layer 21 and an adhesive layer 22. The light shielding layer 21 is used for covering the notch, and the bonding layer 22 is arranged on one side, facing the notch, of the light shielding layer 21 and used for fixing the light shielding layer 21 at the notch; wherein, the orthographic projection of the adhesive layer 22 on the light-shielding layer 21 completely covers the orthographic projection of the edge of the notch on the light-shielding layer 21, and the adhesive layer 22 comprises an antistatic layer.

In the light shielding tape 20 of the present embodiment, the adhesive layer 22 covers the notch, and on this basis, the adhesive layer 22 is further configured to include an antistatic layer, so that the adhesive layer 22 can contact with the module disposed in the accommodating groove 11 of the display panel 10 without generating static electricity with the module.

In a specific embodiment, the light shielding tape 20 includes a light shielding layer 21 and an adhesive layer 22, the light shielding layer 21 is used for covering the notch, the adhesive layer 22 is disposed on one side of the light shielding layer 21 facing the notch and is used for fixing the light shielding layer 21 to the notch, an orthographic projection of the adhesive layer 22 on the light shielding layer 21 completely covers an orthographic projection of an edge of the notch on the light shielding layer 21, and a size of the adhesive layer 22 is greater than or equal to 20mm × 30mm, the adhesive layer 22 includes foam, and the foam may be Tesa 68559. The foam with good flexibility, permanent antistatic property and smooth surface is selected as the bonding layer 22 to contact with the module in the accommodating groove 11 of the display panel 10, so that the abrasion and electrostatic damage of the module caused by the arrangement of the shading adhesive tape 20 can be avoided.

Specifically, the material of the light shielding layer 21 includes a hard plate material such as a hard plastic plate, or the material of the light shielding layer 21 includes a metal plate or a coiled plastic film.

The present application also provides a display panel 10 for the same purpose.

Referring to fig. 1, in an embodiment of the present application, the display panel 10 includes a display module, a fingerprint recognition module, and the light-shielding tape 20 in the above embodiments. Wherein the display module assembly specifically can be OLED display module assembly, and the display module assembly has relative demonstration side and dorsal part, is equipped with holding tank 11 on the display module assembly, and holding tank 11 has the dorsal notch that link up the display module assembly, and in holding tank 11 was located to the fingerprint identification module assembly, the dorsal part of display module assembly was located in the subsides of shading sticky tape 20 to cover holding tank 11's notch. Because shading sticky tape 20 adopts the adhesive linkage 22 of preventing the static material to replace light shield layer 21 and fingerprint identification module contact, perhaps, adhesive linkage 22 and light shield layer 21 all do not contact with the fingerprint identification module to avoid light shield layer 21 to cause the damage to the fingerprint identification module.

Based on the same object, the present application also provides a display device including the display panel in the above embodiment.

Based on the same object, the present application also provides an electronic device including the display device in the above embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within 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 claims. 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 application shall be subject to the appended claims.

Claims

1. The utility model provides a shading sticky tape for display panel, the last holding tank that is equipped with of display panel, the holding tank has the notch that link up display panel's at least one side, its characterized in that, shading sticky tape includes:

the light shielding layer comprises a light shielding area and a fixing area at least partially surrounding the light shielding area, and the light shielding area is used for covering the notch; and

the bonding layer is arranged on one side, facing the notch, of the light shielding layer and used for fixing the light shielding layer at the notch, at least part of the bonding layer covers the fixing area, and the covering area of the bonding layer on the light shielding layer is not overlapped with the fixing area;

wherein, the side of the bonding layer facing the notch is convex relative to the shading area.

2. The masking tape of claim 1, wherein the securing region annularly surrounds the periphery of the masking region;

the adhesive layer partially or completely covers the fastening region.

3. The masking tape of claim 2, wherein the securing region has opposing outer and inner sides, the outer and inner sides being spaced apart from one another by a distance of 1.5mm to 5 mm.

4. The light-shielding tape according to claim 1, wherein the adhesive layer has a thickness of 1mm to 3mm in relation to the light-shielding layer protrusion.

5. The light-shielding tape according to claim 1, wherein an elastic modulus of the light-shielding tape is 4000MPa or more.

6. The utility model provides a shading sticky tape for display panel, the last holding tank that is equipped with of display panel, the holding tank has the notch that link up display panel's at least one side, its characterized in that, shading sticky tape includes:

the shading layer is used for covering the notch; and

the bonding layer is arranged on one side, facing the notch, of the light shielding layer and is used for fixing the light shielding layer at the notch;

wherein, the orthographic projection of the adhesive layer on the light shield layer completely covers the orthographic projection of the edge of the notch on the light shield layer, and the adhesive layer comprises an antistatic layer.

7. The light-shielding tape according to claim 6, wherein the size of the adhesive layer is 20mm x 30mm or more;

the bonding layer comprises foam.

8. A display panel, comprising:

the display module is provided with a display side and a back side which are opposite, and the display module is provided with an accommodating groove which is provided with a notch penetrating through the back side;

the fingerprint identification module is arranged in the accommodating groove; and

a light-shielding tape according to any one of claims 1 to 5 or 6 to 7, wherein said light-shielding tape is attached to said back side and covers said notch.

9. A display device characterized by comprising the display panel according to claim 8.

10. An electronic apparatus characterized by comprising the display device according to claim 9.