CN115124934B - Shading tape, display panel, display device and electronic equipment - Google Patents
Shading tape, display panel, display device and electronic equipment Download PDFInfo
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- CN115124934B CN115124934B CN202210758133.XA CN202210758133A CN115124934B CN 115124934 B CN115124934 B CN 115124934B CN 202210758133 A CN202210758133 A CN 202210758133A CN 115124934 B CN115124934 B CN 115124934B
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- shading
- layer
- light shielding
- adhesive layer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/28—Metal sheet
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/163—Metal in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/22—Presence of unspecified polymer
- C09J2400/226—Presence of unspecified polymer in the substrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application relates to a shading tape, a display panel, a display device and electronic equipment, wherein the shading tape is used for the display panel, the display panel is provided with a containing groove, the containing groove is provided with a notch penetrating at least one side of the display panel, the shading 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 of the shading layer facing the notch and is used for fixing the shading layer at 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 bonding layer is protruding towards the relative shading district of one side of notch. The shading tape can solve the problem that the current shading tape can damage the fingerprint identification module.
Description
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 under-screen fingerprint recognition technology refers to a technology of installing a fingerprint recognition module below a display screen. Typically, an opening is provided at the lower side of the display screen, and the fingerprint recognition module is mounted in the opening, and in order to protect the opening, a light shielding tape is typically provided to cover the opening and the fingerprint recognition module located in the opening. However, the arrangement of the shading adhesive tape enhances the protection of the opening, and simultaneously, the fingerprint identification module is easily damaged due to friction, static electricity and the like.
Disclosure of Invention
Accordingly, it is necessary to provide a light shielding tape, a display panel, a display device and an electronic apparatus for solving the problem that the light shielding tape damages the fingerprint recognition module.
According to an aspect of the present application, there is provided a light shielding tape for a display panel provided with a receiving groove having a notch penetrating at least one side of the display panel, the light shielding tape comprising: a light shielding layer comprising a light shielding region and a fixing region at least partially surrounding the light shielding region, wherein the light shielding region is used for covering the notch; the adhesive layer is arranged on one side of the shading layer facing the notch and used for fixing the shading layer at the notch, the adhesive layer at least partially covers the fixing area, and the coverage area of the adhesive layer on the shading layer is not overlapped with the fixing area; wherein, the adhesive layer is towards one side of notch is relative light shielding district arch.
In some embodiments, the fixing region surrounds the light shielding region in a ring shape; the adhesive layer partially covers or completely covers the fixing area.
In some embodiments, the fixation region has opposite outer and inner sides, the outer and inner sides being spaced apart by 1.5mm to 5mm.
In some embodiments, the adhesive layer has a thickness of 1mm to 3mm relative to the protrusion of the light shielding layer.
In some embodiments, the light-shielding tape has an elastic modulus of 4000MPa or greater.
According to an aspect of the present application, there is provided a light shielding tape for a display panel provided with a receiving groove having a notch penetrating at least one side of the display panel, the light shielding tape comprising: a light shielding layer for covering the notch; the adhesive layer is arranged on one side of the light shielding layer facing the notch and is used for fixing the light shielding layer at the notch; the front projection of the adhesive layer on the shading layer completely covers the front projection of the edge of the notch on the shading layer, and the adhesive layer comprises an antistatic layer.
In some embodiments, the adhesive layer has dimensions greater than or equal to 20mm x 30mm; 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, the display module is provided with a containing groove, and the containing groove is provided with a notch penetrating through the back side; the fingerprint identification module is arranged in the accommodating groove; and the shading adhesive tape is adhered 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 present application there is provided an electronic device comprising a display device as described above.
According to the shading adhesive tape provided by the embodiment of the application, the shading area and the fixing area at least partially surrounding the shading area are arranged on the shading layer, and the bonding layer is arranged to fix the shading layer at the notch of the containing groove of the display panel, so that the bonding layer at least partially covers the fixing area, and the coverage area of the bonding layer on the shading layer is not overlapped with the fixing area, thereby covering the notch of the display panel by the shading area, and simultaneously fixing the shading layer on the display panel by the bonding layer. Based on this, further set up the relative shading district arch of one side of adhesive layer towards the notch for when the shading layer is fixed on display panel, in the range upon range of orientation of shading sticky tape and display panel, there is the clearance between shading district and the display panel, thereby avoid shading sticky tape and the part direct contact that sets up in the display panel notch and produce friction or static, reduce the damage of the setting of shading sticky tape to the part that sets up in the display panel notch.
Drawings
FIG. 1 is a schematic diagram of a display panel according to an embodiment of the application;
FIG. 2 is a schematic view of a masking tape according to an embodiment of the present application;
FIG. 3 is a schematic view of the masking tape of FIG. 2 from another view;
FIG. 4 is a schematic view of a light shielding layer of a light shielding tape according to an embodiment of the present application;
FIG. 5 is a schematic view of a masking tape according to an embodiment of the present application;
FIG. 6 is a schematic view of a masking tape according to an embodiment of the present application;
FIG. 7 is a schematic view of a masking tape according to an embodiment of the present application;
FIG. 8 is a schematic 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 view;
FIG. 10 is a schematic view of a masking tape according to an embodiment of the present application;
FIG. 11 is a schematic view of a masking tape according to an embodiment of the present application;
FIG. 12 is a schematic view of a masking tape according to an embodiment of the present application;
FIG. 13 is a schematic view of a masking tape according to an embodiment of the present application;
fig. 14 is a schematic view of the masking tape of fig. 13 from another view.
Reference numerals illustrate:
10: display panel 212: fixed area
11: the accommodating groove 212a: outer side edge
20: masking tape 212b: inner side edge
21: light shielding layer 22: adhesive layer
211: light shielding region 23: handle grip
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
In the description of the present application, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" 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 are used herein for illustrative purposes only and are not meant to be the only embodiment.
In the current electronic equipment, the requirement on the screen duty ratio is higher and higher, and the area of the frame area is smaller and smaller, so that the functional module originally arranged in the frame area has to be correspondingly adjusted. Taking a mobile phone as an example, because the area of the frame area is small, and there is not enough space for installing the fingerprint identification module, the technology of under-screen fingerprint identification for installing the fingerprint identification module below the display screen is developed. It can be understood that the display module assembly includes opposite display side and back side, and the fingerprint identification technology under the screen specifically sets up the opening at the back side of display module assembly, places fingerprint identification module assembly in the opening to it is fixed with fingerprint identification module assembly and display module assembly bonding through the double faced adhesive tape.
Because the orthographic projection area of fingerprint identification module on the display module assembly is less than the orthographic projection area of open-ended edge on the display module assembly, there is the clearance between fingerprint identification module assembly and the open-ended edge promptly for after fingerprint identification module assembly and the display module assembly bonding are fixed, the partial inner structure of display module assembly can expose outside, thereby influences the display function of display module assembly. For example, when the display module is an Organic Light-Emitting Diode (OLED), the OLED exposed to the external environment may be irradiated with ultraviolet rays or contaminated by dust particles, resulting in an influence on the display function of the OLED.
Based on this, need be after fingerprint identification module and display module assembly bonding fixed, cover whole opening through shading sticky tape, play shading, dirt-proof effect. But the mode of pasting shading sticky tape at the opening part and covering fingerprint identification module, when having strengthened the protection to the opening part, also because shading sticky tape can produce the friction with fingerprint identification module, lead to the fact wearing and tearing or cause static to hit the damage to fingerprint identification module.
In order to solve the above problems, the embodiment of the application provides a light shielding adhesive tape, wherein the light shielding adhesive tape is formed by laminating a light shielding layer and an adhesive layer, and is adhered and fixed with a display module by the adhesive layer, and the adhesive layer made of an antistatic material is used for replacing the light shielding layer to be in contact with a fingerprint identification module, or the adhesive layer and the light shielding layer are not in contact with the fingerprint identification module, so that the damage of the light shielding layer to the fingerprint identification module is avoided.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the application. Fig. 2 is a schematic structural view of a masking tape according to an embodiment of the present application. Fig. 3 shows a schematic structural view of the masking tape of fig. 2 at another viewing angle.
Referring to fig. 1 to 3, an embodiment of the present application provides a masking tape 20 for a display panel 10, where the display panel 10 is provided with a receiving groove 11, and the receiving groove 11 has a notch penetrating at least one side of the display panel 10. The accommodating groove 11 may be used for accommodating the fingerprint recognition module, and the shape of the accommodating groove 11 may be a circle, a polygon or a combination thereof. 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 a notch penetrating the 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 at the notch, the adhesive layer 22 at least partially covers the fixing region 212, and a covering region of the adhesive layer 22 on the light shielding layer 21 is not overlapped with the fixing region 212; wherein, the side of the adhesive layer 22 facing the notch is protruded relative to the shading area 211.
Specifically, the edge of the light shielding tape 20 is adhered and fixed to the area of the display panel 10 near the edge of the accommodating groove 11, the middle part of the light shielding tape 20 covers the notch of the accommodating groove 11, based on this, the area of the light shielding tape 20 opposite to the notch of the accommodating groove 11 is a light shielding area 211, and the area opposite to the area of the display panel 10 near the edge of the accommodating groove 11 is a fixing area 212. The material of the adhesive layer 22 is the same as or different from the material of the light shielding layer 21.
According to the shading adhesive tape 20 provided by the embodiment of the application, the shading area 211 and the fixing area 212 at least partially surrounding the shading area 211 are arranged on the shading layer 21, and the bonding layer 22 is arranged to fix the shading layer 21 at the notch of the accommodating groove 11 of the display panel 10, so that the bonding layer 22 at least partially covers the fixing area 212, and the coverage area of the bonding layer 22 on the shading layer 21 is not overlapped with the fixing area 212, thereby covering the notch of the display panel 10 by the shading area 211, and simultaneously fixing the shading layer 21 on the display panel 10 by the bonding layer 22. Based on this, the adhesive layer 22 is further arranged to protrude towards the side of the notch 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 adhesive tape 20 and the display panel 10, thereby avoiding friction or static electricity caused by direct contact between the light shielding adhesive tape 20 and a component arranged in the notch of the display panel 10, and reducing damage of the component arranged in the notch of the display panel 10 caused by the arrangement of the light shielding adhesive tape 20.
Fig. 4 is a schematic view showing a structure of a light shielding layer of a light shielding tape according to an embodiment of the present application.
Referring to fig. 4, the fixing region 212 at least partially surrounds the light shielding region 211, including that the fixing region 212 partially surrounds the light shielding region 211, and that the fixing region 212 completely surrounds the light shielding region 211. For example, the light shielding region 211 has a quadrilateral shape, and the fixing region 212 is disposed corresponding to one or more sides of the light shielding region 211.
Fig. 5 is a schematic structural view of a masking tape according to 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 in a quadrilateral shape, and the fixing region 212 surrounds the light shielding region 211, i.e. the fixing region 212 is in a quadrilateral ring shape. The light shielding area 211 is used for covering a notch, the fixing area 212 is used for the adhesive layer 22 to adhere and fix, 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 area 212, so that when the light shielding adhesive tape 20 is adhered and fixed at the notch of the accommodating groove 11, the three sides of the light shielding adhesive tape 20 around the notch are adhered and sealed, and the rest one side is opened, thereby being beneficial to the passage of a flexible circuit board or other structures to connect with components in the accommodating groove 11.
In other embodiments, the adhesive layer 22 may be disposed to cover two sides of the quadrangular ring-shaped fixing area 212, or may be disposed to cover four sides of the quadrangular ring-shaped fixing area 212, with one or more sides being incompletely covered, thereby forming one or more openings for connecting the components within the receiving groove 11 with other components.
In other embodiments, the light-shielding regions 211 may also be configured as circles, ovals, triangles, or combinations thereof. Correspondingly, the adhesive layer 22 may entirely cover the fixing region 212, or partially cover the fixing region 212 to form an opening communicating the inside and the outside of the receiving groove 11.
Fig. 6 is a schematic structural view of a masking tape according to 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 of which is spaced apart from each other, and each of which is bonded to the bonding layer 22. The gaps between the components in the accommodating groove 11 and the side walls of the accommodating groove 11 are covered by the plurality of shading parts, so that the display panel 10 can be protected, the display panel 10 is prevented from exposing the internal structure due to the accommodating groove 11, and the shape and the number of the shading parts can be adjusted according to actual conditions. Specifically, the light shielding portion has a triangular shape, a quadrangular shape, a circular shape, an elliptical shape, or a combination thereof.
Fig. 7 is a schematic view showing the structure of a masking tape according to an embodiment of the present application.
Referring to fig. 4 and 7, the embodiment of fig. 7 combines the embodiments of fig. 5 with the embodiment of fig. 6. Specifically, the light shielding layer 21 includes a light shielding region 211 and a fixing region 212, the light shielding region 211 is in a quadrilateral shape, and the fixing region 212 surrounds the light shielding region 211, i.e. the fixing region 212 is in a quadrilateral ring shape. The light shielding region 211 is used for covering the notch, the fixing region 212 is used for adhering and fixing the adhesive layer 22, 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. The light shielding layer 21 includes two light shielding portions each spaced apart from each other, and each adhered to the adhesive layer 22. In this way, the form of the light shielding layer 21 is made more flexible, and the connection of the components in the accommodation groove 11 with other components can be facilitated.
Fig. 8 is a schematic structural view of a masking tape according to an embodiment of the present application. Fig. 9 is a schematic structural view showing another view angle of the masking tape of fig. 8.
Referring to fig. 4, 8 and 9, in some embodiments, the fixing region 212 surrounds the light shielding region 211 in a ring shape, 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 surrounds the light shielding region 211 in a ring shape, and the adhesive layer 22 completely covers the fixing region 212. Since the fixing region 212 is annular and completely surrounds the light shielding region 211, the adhesive layer 22 completely covers the fixing region 212, so that the contact area between the adhesive layer 22 and the light shielding layer 21 is maximized, and the stability of the connection between the adhesive layer 22 and the light shielding layer 21 is improved.
Further, the fixed zone 212 has opposite outer and inner sides 212a, 212b, with a spacing between the outer and inner sides 212a, 212b of 1.5mm to 5mm. Since the size of the area of the fixing area 212 corresponds to the size of the bonding area between the light shielding tape 20 and the display panel 10, the size of the space between the outer side 212a and the inner side 212b of the fixing area 212 affects the size of 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 space on the display panel 10 is occupied, and the light shielding material is wasted. Based on this, the distance between the outer side 212a and the inner side 212b of the fixing area 212 is set to be 1.5mm to 5mm, so that the space occupied by the light shielding tape 20 on the display panel 10 is reduced while the stable bonding effect between the light shielding tape 20 and the display panel 10 is ensured, the consumption of light shielding materials is reduced, and the cost is saved.
In some embodiments, the thickness of the protrusion of the adhesive layer 22 relative to the light shielding layer 21 is 1mm to 3mm. It is understood that the larger the thickness of the adhesive layer 22 protruding from the light shielding layer 21, the larger the distance between the light shielding layer 21 and the module disposed in the receiving groove 11 of the display panel 10, i.e., the smaller the probability of mutual friction or static electricity generation between the light shielding layer 21 and the module disposed in the receiving groove 11 of the display panel 10. 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 is too large, and the overall thickness of the display panel 10 increases. Based on this, in the light-shielding adhesive 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 thickness of the display panel 10 is ensured to be low while the probability of damage to the components in the display module accommodating groove 11 caused by the light-shielding adhesive tape 20 is reduced.
In some embodiments, the elastic modulus of the masking tape 20 is greater than or equal to 4000MPa. Since 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 the 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 collapse of the light shielding layer 21 needs to be prevented by the strength of the light shielding tape 20 itself. According to the embodiment of the application, the elastic modulus of the shading adhesive tape 20 is set to be larger 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 keep a state of being spaced from the modules in the accommodating groove 11 of the display panel 10, and further damage to the modules in the accommodating groove 11 of the display panel 10 caused by collapse of the shading layer 21 in the subsequent use process of the display panel 10 is avoided.
In some embodiments, the masking tape 20 further includes a handle 23, specifically, the handle 23 is disposed at an edge of the masking layer 21 and protrudes with respect to an edge of the masking layer 21, or the handle 23 is disposed at an edge of the adhesive layer 22 and protrudes with respect to an edge of the adhesive layer 22, so as to facilitate taking, placing, and pasting of the masking tape 20.
Further, the light shielding tape 20 further includes a release film, and the release film is disposed on a side of the adhesive layer 22 facing away from the light shielding layer 21. By arranging the release film on the side of the adhesive layer 22 facing away from the light shielding layer 21, the storage and transportation of the light shielding tape 20 are facilitated, and the adhesive layer 22 of the light shielding tape 20 is prevented from being polluted in the storage and transportation process.
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 shape of a Chinese character 'hui'. 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 to collapse at the notch of the receiving groove 11, thereby preventing the light shielding tape 20 from contacting the mold set in the receiving groove 11. The material of the light-shielding adhesive tape 20 is an antistatic material, and the whole light-shielding adhesive tape 20 can be spliced to form a required shape through a plurality of scattered components, for example, two independent components are adopted between the light-shielding layer 21 and the adhesive layer 22 to form the light-shielding adhesive tape 20, four sides of the adhesive layer 22 formed by the shape of the back-up are respectively independent components, and the four sides are spliced and combined to form the shape of the back-up. Alternatively, the entire masking tape 20 is molded 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 shape of a Chinese character 'hui'. 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 4000Mpa or more. The material of the light-shielding adhesive tape 20 is an antistatic material, the material of the adhesive layer 22 is specifically foam, and the light-shielding layer 21 is attached to the foam in the shape of a Chinese character 'hui', so that the light-shielding adhesive tape 20 is formed by combining. The foam in the shape of the Chinese character 'Hui' is adopted as the bonding layer 22, and the elastic modulus of the shading tape 20 is larger than or equal to 4000Mpa, so that the shading tape 20 is prevented from being too soft to collapse at the notch of the accommodating groove 11, and the shading tape 20 is prevented from being contacted with the module in the accommodating groove 11.
Fig. 10 is a schematic structural view of a masking tape according to an embodiment of the present application. Fig. 11 is a schematic view showing the structure of a masking tape according to an embodiment of the present application. Fig. 12 is a schematic view showing the structure of a masking 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 is ring-shaped and quadrangular, and the adhesive layer 22 of the embodiment shown in fig. 10 is reduced by one side based on the ring-shaped quadrangle, thereby forming 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 the adhesive layer 22 of the embodiment shown in fig. 10 is added with a strip-shaped adhesive part on the basis of the annular quadrangle, and two ends of the strip-shaped adhesive part are respectively connected with two opposite sides of the quadrangle or connected with opposite vertex angles of the quadrangle. Specifically, the strip-shaped bonding portion may be foam, so as to enhance the supporting effect on the light shielding layer 21 and reduce the probability of collapse of the light shielding layer 21.
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 ring-shaped quadrangle, one long side and two short sides connected to two ends of the long side are formed, and one strip-shaped adhesive part is added, and one end of the strip-shaped adhesive part is connected to the middle of the long side, so that the connection between the components in the accommodating groove 11 and other components is facilitated, and the probability of collapse of the light shielding layer 21 is reduced.
In accordance with the same object, the present application provides a light shielding tape 20, wherein the light shielding tape 20 is used for a display panel 10, the display panel 10 is provided with a receiving groove 11, and the receiving groove 11 has a notch penetrating at least one side of the display panel 10.
Fig. 13 is a schematic view showing the structure of a masking tape according to an embodiment of the present application. Fig. 14 is a schematic view showing a structure of the masking tape of fig. 13 at another view angle.
Referring to fig. 13 and 14, in some embodiments, the masking tape 20 includes a masking 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 of the light shielding layer 21 facing the notch and is 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 based on this, the adhesive layer 22 is further provided to include an antistatic layer, so that the adhesive layer 22 can be in contact with the module provided in the accommodation 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 arranged on one side of the light shielding layer 21 facing the notch and is used for fixing the light shielding layer 21 at the notch, 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, the 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 Tesa68559. The foam with good flexibility, permanent static resistance and smooth surface is used as the bonding layer 22 to be in contact with the module arranged in the accommodating groove 11 of the display panel 10, so that abrasion and static injury to the module caused by the arrangement of the shading adhesive tape 20 can be avoided.
In some embodiments, the masking tape 20 further includes a handle 23, specifically, the handle 23 is disposed at an edge of the masking layer 21 and protrudes with respect to an edge of the masking layer 21, or the handle 23 is disposed at an edge of the adhesive layer 22 and protrudes with respect to an edge of the adhesive layer 22, so as to facilitate taking, placing, and pasting of the masking tape 20.
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 based on the same object.
Referring to fig. 1, in an embodiment of the application, the display panel 10 includes a display module, a fingerprint recognition module, and the masking tape 20 in the above embodiment. Wherein the display module assembly specifically can be OLED display module assembly, and the display module assembly has relative display side and dorsal part, is equipped with holding tank 11 on the display module assembly, and holding tank 11 has the notch that link up the dorsal part of display module assembly, and in the fingerprint identification module assembly located holding tank 11, shading sticky tape 20 pasted and locates the dorsal part of display module assembly to cover the notch of holding tank 11. Because the shading tape 20 adopts the bonding layer 22 made of antistatic materials to replace the shading layer 21 to be in contact with the fingerprint identification module, or the bonding layer 22 and the shading layer 21 are not in contact with the fingerprint identification module, thereby avoiding the damage of the shading layer 21 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 above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (7)
1. The shading adhesive tape is used for a display panel, and is provided with a containing groove which is provided with a notch penetrating through at least one side of the display panel, and is characterized by comprising 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, and the shading area is used for covering the notch; and
the adhesive layer is arranged on one side of the shading layer facing the notch and used for fixing the shading layer at the notch, the adhesive layer at least partially covers the fixing area, and the coverage area of the adhesive layer on the shading layer is not overlapped with the shading area;
wherein, the side of the adhesive layer facing the notch is raised relative to the shading area, and the thickness of the adhesive layer relative to the shading area is 1mm to 3mm;
the fixed area is annularly encircling the periphery of the shading area; the adhesive layer partially covers or completely covers the fixing area;
the elastic modulus of the shading adhesive tape is larger than or equal to 4000MPa.
2. The masking tape of claim 1, wherein the fixed zone has opposite outer and inner sides, the outer and inner sides being spaced apart by 1.5mm to 5mm.
3. The masking tape of claim 1, wherein the orthographic projection of the adhesive layer onto the masking layer completely covers the orthographic projection of the edge of the notch onto the masking layer, and wherein the adhesive layer comprises an antistatic layer.
4. A masking tape according to claim 3, wherein the size of said adhesive layer is greater than or equal to 20mm x 30mm;
the bonding layer comprises foam.
5. A display panel, comprising:
the display module is provided with a display side and a back side which are opposite, the display module is provided with a containing groove, and the containing groove is provided with a notch penetrating through the back side;
the fingerprint identification module is arranged in the accommodating groove; and
the light-shielding tape according to any one of claims 1 to 4, which is attached to the back side and covers the notch.
6. A display device comprising the display panel according to claim 5.
7. An electronic device comprising the display device according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210758133.XA CN115124934B (en) | 2022-06-30 | 2022-06-30 | Shading tape, display panel, display device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210758133.XA CN115124934B (en) | 2022-06-30 | 2022-06-30 | Shading tape, display panel, display device and electronic equipment |
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| CN115124934A CN115124934A (en) | 2022-09-30 |
| CN115124934B true CN115124934B (en) | 2023-09-29 |
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| CN202210758133.XA Active CN115124934B (en) | 2022-06-30 | 2022-06-30 | Shading tape, display panel, display device and electronic equipment |
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| CN115124934A (en) | 2022-09-30 |
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