CN113421900A - Display module, manufacturing method of display module and display device - Google Patents
Display module, manufacturing method of display module and display device Download PDFInfo
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- CN113421900A CN113421900A CN202110668048.XA CN202110668048A CN113421900A CN 113421900 A CN113421900 A CN 113421900A CN 202110668048 A CN202110668048 A CN 202110668048A CN 113421900 A CN113421900 A CN 113421900A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 81
- 239000012790 adhesive layer Substances 0.000 claims abstract description 72
- 239000002346 layers by function Substances 0.000 claims abstract description 38
- 238000004080 punching Methods 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims description 90
- 239000000758 substrate Substances 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 239000010408 film Substances 0.000 description 34
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- 206010070834 Sensitisation Diseases 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
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- 239000004642 Polyimide Substances 0.000 description 1
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
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- 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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/126—Shielding, e.g. light-blocking means over the TFTs
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- Physics & Mathematics (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Polarising Elements (AREA)
- Optical Elements Other Than Lenses (AREA)
- Liquid Crystal (AREA)
Abstract
The application provides a display module, a manufacturing method of the display module and a display device, wherein the display module comprises a display area and a non-display area which are adjacently arranged along a first direction, and a punching area is further arranged in the non-display area; the punching device is characterized by also comprising a plurality of functional layers, optical adhesive layers and cover plates which are stacked along a second direction, through holes which penetrate through the functional layers and the optical adhesive layers along the second direction are arranged in the punching area, and one side of the optical adhesive layer, which faces to the center line of the through holes, is provided with a non-light-transmitting part; the side, facing the through hole, of the non-light-transmitting part is also provided with a light shielding part, and the light shielding part extends to the side face of at least one functional layer along the second direction; wherein the first direction is perpendicular to the second direction. The light leakage problem of the display device can be reduced, and the shooting quality of the photosensitive element and the use experience of a user are improved.
Description
Technical Field
The present disclosure relates to display technologies, and particularly to a display module, a method for manufacturing the display module, and a display device.
Background
With the development of display technologies, one of the development trends of display devices (such as mobile phones, tablet computers, smart watches, etc.) is to reduce the width of a frame and increase the proportion of a screen, thereby realizing a large screen occupation ratio. Among them, a scheme of punching a hole in a display area of a display device and placing a front photosensitive element in the hole is gradually becoming a mainstream design.
In the scheme of correlation technique, display device includes the display module assembly and the module of making a video recording, and wherein the display module assembly is located the top of the module of making a video recording, and the display module assembly includes a plurality of retes and the apron that range upon range of setting, and the module of making a video recording includes photosensitive element, is equipped with the through-hole that runs through a plurality of retes in the display module assembly, and photosensitive element sets up in the through-hole, and photosensitive element can catch the outside light that passes through-hole and apron during the use to the realization is shot or is made a video recording the function.
However, when the display device is used, the light leakage phenomenon is easily generated at the through hole, thereby affecting the shooting quality of the photosensitive element and the use experience of a user.
Disclosure of Invention
In order to overcome the above-mentioned defects in the related art, an object of the present application is to provide a display module, a method for manufacturing the display module, and a display device, so as to reduce the light leakage problem of the display device.
An embodiment of the application provides a display module, which comprises a display area and a non-display area which are adjacently arranged along a first direction, wherein a punching area is further arranged in the non-display area;
the punching device is characterized by further comprising a plurality of functional layers, an optical adhesive layer and a cover plate which are stacked along a second direction, through holes penetrating through the functional layers and the optical adhesive layer along the second direction are formed in the punching area, and a non-light-transmitting part is arranged on one side, facing the center line of the through holes, of the optical adhesive layer; a light shielding part is further arranged on one side, facing the through hole, of the non-light-transmitting part, and the light shielding part extends to the side face of at least one functional layer along the second direction;
wherein the first direction is perpendicular to the second direction.
The utility model provides a non-printing opacity portion can block light in the optical cement layer and conduct to the through-hole along first direction, because the thickness of optical cement layer is big than other retes, consequently sets up non-printing opacity portion and can shelter from most light leaks in the through-hole in the optical cement layer, greatly weakens display module's light leak problem. The shading part can further shade the light which is transmitted to the through hole along the first direction by the functional layer, so that the light leakage problem of the display module is further reduced, and the shooting quality is favorably improved.
Optionally, one side of the non-light-transmitting portion facing the center line of the through hole protrudes from one side of the functional layer facing the center line of the through hole.
The non-light-transmitting part extends into the hole punching area, so that light rays emitted by the functional layer below the optical adhesive layer can be better shielded, and the light leakage problem of the display module is further reduced.
Optionally, a cover plate ink is further disposed in the cover plate, and a part of the cover plate ink extends into the perforated area; in the first direction, one side of the non-light-transmitting part facing the perforated area does not exceed the cover plate ink, and one side of the non-light-transmitting part facing away from the perforated area does not exceed the non-display area.
In the display module set above, optionally, the light shielding portion abuts against a portion of the non-light-transmitting portion protruding from the functional layer in the second direction.
Optionally, the non-light-transmitting portion, the light-shielding portion and the optical adhesive layer are integrally formed as the display module.
The manufacturing steps can be simplified and the production efficiency can be improved by adopting the integrated forming process; the non-light-transmitting part, the shading part and the optical adhesive layer are connected into a whole, so that the normal manufacturing process of the display module is not influenced, and the preparation of the display module is facilitated.
Optionally, the material of the non-light-transmitting portion is black OCA glue.
The material of non-light-transmitting part is also selected as OCA glue, so that the structure of the optical glue layer can not be influenced, and the stability of the display module is ensured.
As for the display module described above, optionally, the material of the light shielding portion is black resin or black silica gel.
Optionally, the functional layers include one or more layers of a laminated composite adhesive tape layer, a support film layer, a screen layer, and a polarizer, and the shading part is disposed on a side surface of the plurality of functional layers.
Another embodiment of this application provides a display device, includes as above arbitrary the display module assembly, the display module assembly deviates from one side of apron is equipped with the sensitization module assembly, the sensitization module assembly includes the photosensitive element, the photosensitive element with the through-hole is corresponding.
The application discloses display device blocks light in the optical cement layer through the non-light-transmitting part that sets up in the optical cement layer and conducts to the through-hole along first direction, because the thickness of optical cement layer is great than other retes, consequently can shelter from the most light leak in the through-hole with non-light-transmitting part setting in the optical cement layer, greatly weakens the light leak problem. The shading part can further shade the light which is transmitted to the through hole along the first direction in the functional layer, thereby further reducing the light leakage problem and being beneficial to improving the shooting quality of the photosensitive element and the use experience of a user.
Another embodiment of the present application provides a method for manufacturing a display module, including:
providing a substrate and an optical adhesive layer, wherein the substrate comprises a plurality of functional layers which are arranged in a stacked mode, a first through hole is formed in the substrate, a second through hole is formed in the optical adhesive layer, a non-light-transmitting part is arranged on one side, facing a center line of the second through hole, of the optical adhesive layer, and a light shielding part is further arranged on one side, facing the second through hole, of the non-light-transmitting part;
laminating the optical adhesive layer on the substrate, so that the first through hole and the second through hole jointly form a through hole, and the shading part is positioned in the through hole and extends to the side face of at least one functional layer;
and a cover plate is bonded above the optical adhesive layer, and a composite adhesive tape layer is bonded below the supporting film layer.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a display device according to the related art;
fig. 2 is a schematic structural diagram of a display module according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a display device according to an embodiment of the present application;
fig. 4 is a flowchart illustrating a method for manufacturing a display module according to an embodiment of the present disclosure;
fig. 5-8 are schematic structural diagrams corresponding to some steps of a method for manufacturing a display module according to an embodiment of the present disclosure.
Reference numerals:
100-a display module;
110-a composite tape layer;
120-a support membrane layer;
130-a screen layer;
140-a polarizer;
150-an optical glue layer;
151-a non-light-transmitting portion;
152-a light shielding portion;
160-a cover plate;
161-cover ink;
200-a photosensitive module;
210-a photosensitive element;
300-a through hole;
AA-display area;
NAA-non-display area;
NAA 1-punch area;
x-a first direction;
y-second direction.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
FIG. 1 is a schematic diagram of a display device according to the related art; please refer to fig. 1. In the related art, the display device includes a display module 100 and a photosensitive module 200, wherein the display module 100 is located above the photosensitive module 200. Along the first direction X in the figure, the display module 100 can be divided into a display area AA and a non-display area NAA adjacent to each other according to different specific functions, and the non-display area NAA is further provided with a punching area NAA 1. Along a second direction Y in the figure, the display module 100 includes a composite tape layer 110, a supporting film layer 120, a screen body layer 130, a polarizer 140, an optical adhesive layer 150 (for example, an OCA adhesive layer), and a cover plate 160, which are stacked, a through hole 300 penetrating through the composite tape layer 110, the supporting film layer 120, the screen body layer 130, the polarizer 140, and the optical adhesive layer 150 is disposed in the punching area NAA1, a photosensitive module 200 is disposed on a side of the through hole 300 away from the cover plate 160, and a photosensitive element 210 of the photosensitive module 200 extends into the through hole 300. A cover ink 161 is also provided within the cover 160, with a portion of the cover ink 161 extending into the perforated area NAA1 to obscure a portion of the through-hole 300. When in use, the light sensing element 210 can capture external light passing through the through hole 300 and the cover plate 160, thereby realizing a photographing or image capturing function.
However, after the display device is turned on, light can be transmitted to the through hole 300 through the film layers (such as the supporting film layer 120, the screen body layer 130, the polarizer 140, and the optical adhesive layer 150), that is, the light can be transmitted to the through hole 300 along the first direction X, which causes a light leakage phenomenon, thereby affecting the shooting quality of the photosensitive element 210 and the user experience. For example, when the user views the through hole 300 at a viewing angle (referring to an angle between the user's eye and the axis of the through hole 300) larger than 45 °, the sidewall of the through hole 300 is seen to have annular brightness, thereby affecting the user experience. In addition, the light leaking from the side wall of the through hole 300 may affect the photographing quality of the photosensitive element 210, and interfere the photosensitive element 210 to capture external light, thereby affecting the photographing quality of the photosensitive element 210.
Further, the inventor also finds that, in the display module 100, the optical adhesive layer 150 has a larger thickness and a highest transparency, and is the most serious film layer in the display module 100 in the light leakage phenomenon. In view of this, the present disclosure is directed to provide a display module 100 and a display device, in which a non-light-transmitting portion is disposed on a side of the optical adhesive layer 150 facing the through hole 300, so as to reduce light leakage of the optical adhesive layer 150, and also reduce light emitted from a film layer below the optical adhesive layer 150 through the through hole 300, thereby reducing the light leakage problem of the display device, and improving the shooting quality of the photosensitive element 210 and the user experience. In addition, the light shielding part connected with the non-light-transmitting part is further arranged, and the light shielding part can further shield one side light of other film layers facing the through hole 300, so that the light leakage phenomenon is further reduced.
The following detailed description of the embodiments of the present application will be provided in conjunction with the accompanying drawings to enable those skilled in the art to more fully understand the contents of the present application.
Fig. 2 is a schematic structural diagram of a display module according to an embodiment of the present application.
Referring to fig. 2, the present embodiment provides a display module 100, which includes a display area AA and a non-display area NAA adjacently disposed along a first direction X, wherein the non-display area NAA further has a punching area NAA1 disposed therein.
The display module 100 further includes a plurality of functional layers (the functional layers may include one or more of the composite tape layer 110, the support film layer 120, the screen body layer 130, and the polarizer 140), an optical adhesive layer 150, and a cover plate 160, which are stacked in the second direction Y, a through hole 300 penetrating through the plurality of functional layers and the optical adhesive layer 150 in the second direction Y is disposed in the punching area NAA1, and a non-light-transmitting portion 151 is disposed on one side of the optical adhesive layer 150 facing a center line of the through hole 300, that is, a side wall of the through hole 300 located in a hole section of the optical adhesive layer 150 in this embodiment is a non-light-transmitting wall.
The non-light-transmitting portion 151 is further provided with a light-shielding portion 152 on a side facing the through hole 300, and the light-shielding portion 152 extends to a side surface of at least one functional layer in the second direction Y.
The first direction X is perpendicular to the second direction Y.
In this embodiment, the display area AA corresponds to an area of the display module 100 for displaying a picture. The non-display area NAA corresponds to an area of the display module 100 where no image is displayed, and an encapsulation structure for blocking water and oxygen may be disposed in the non-display area NAA to protect the screen layer 130 in the display area AA. The punch area NAA1 is an area for accommodating the through-hole 300 in the non-display area NAA, and a projection of the punch area NAA1 in the second direction Y may be slightly larger than a projection of the through-hole 300 in the second direction Y. The shape of the through hole 300 in this embodiment may be set as required, and may be, for example, a circular hole, a square hole, a water drop-shaped hole, or the like.
The display module 100 is provided with a plurality of functional layers in the second direction Y to realize different functions, in this embodiment, the composite tape layer 110 is used for pressure buffering and balanced heat dissipation; the support film layer 120 plays a role of reinforcement and support, and prevents the screen layer 130 from having a function abnormality; the screen layer 130 may be an OLED screen, and includes a flexible substrate, a Thin Film Transistor (TFT) layer, an OLED device layer, and a light emitting layer protection Film layer; the polarizer 140 allows light vibrating in a specific direction to pass therethrough, but does not allow light vibrating in other directions to pass therethrough; the optical adhesive layer 150 is used to adhere the cover plate 160. When the display module 100 is in normal use, the light is emitted to the cover 160 along the second direction Y, so that the user can observe the image.
Since the display module 100 of this embodiment is further configured to dispose the photosensitive element under the panel, a through hole 300 penetrating through the composite tape layer 110, the support film layer 120, the panel body layer 130, the polarizer 140 and the optical adhesive layer 150 along the second direction Y is disposed in the punching area NAA1, and a hole corresponding to the through hole 300 is also disposed on the corresponding composite tape layer 110. After the through hole 300 is formed in the display module 100, when the display module 100 is used, a part of light is transmitted to the through hole 300 along with the transparent film layers (such as the supporting film layer 120, the screen body layer 130, the polarizer 140 and the optical adhesive layer 150), which causes a light leakage phenomenon and affects the shooting quality and the user experience. In order to reduce or eliminate the influence, in this embodiment, the non-light-transmitting portion 151 is disposed on one side of the optical adhesive layer 150 facing the center line of the through hole 300, the non-light-transmitting portion 151 can block light in the optical adhesive layer 150 from being transmitted to the through hole 300 along the first direction X, and since the thickness of the optical adhesive layer 150 is greater than that of other film layers, the non-light-transmitting portion 151 is disposed in the optical adhesive layer 150 to block most of light leakage in the through hole 300, so that the light leakage problem of the display module 100 is greatly reduced, and the shooting quality is improved. Moreover, since the optical adhesive layer 150 is located above the supporting film layer 120, the screen body layer 130 and the polarizer 140 in the second direction Y, part of the light emitted from other film layers through the through hole 300 can be absorbed, which is beneficial to reducing the light leakage problem of the display module 100.
Further, a light shielding portion 152 is further provided on a side of the non-light-transmitting portion 151 facing the through hole 300, and the light shielding portion 152 extends to a side surface of at least one functional layer in the second direction Y. The light shielding portion 152 may be integrally formed with the non-light-transmitting portion 151, or the light shielding portion 152 may be connected to the non-light-transmitting portion 151 by bonding or the like. The light shielding portion 152 may extend from a side surface of the opaque portion 151, or may extend from a bottom surface of the opaque portion 151.
In this embodiment, the light shielding portion 152 is disposed to further shield the functional layer from the light transmitted to the through hole 300 along the first direction X, so as to further reduce the light leakage problem of the display module 100, and improve the shooting quality.
In an alternative embodiment, the non-light-transmitting portion 151 of the present embodiment is disposed to protrude from the functional layer toward the center line of the through hole 300.
Specifically, as shown in fig. 2, in the functional layer of the present embodiment, a side of the support film layer 120 facing the center line of the through hole 300, a side of the screen body layer 130 facing the center line of the through hole 300, and a side of the polarizer 140 facing the center line of the through hole 300 are flush with each other. Compared with the three layers of protrusions, the non-light-transmitting portion 151 protrudes in the first direction X, and the non-light-transmitting portion 151 partially extends into the perforated area NAA1, so as to better block light emitted from the support film layer 120, the screen layer 130 and the polarizer 140 under the optical adhesive layer 150, and further reduce the light leakage problem of the display module 100.
Further, in this embodiment, a cover ink 161 is further disposed in the cover 160, the cover ink 161 is disposed in the non-display area NAA to block light emitted from the non-display area NAA, and a portion of the cover ink 161 extends into the perforated area NAA 1; that is, as shown in fig. 2, the cover ink 161 is partially located over the through-hole 300. In the first direction X, the side of the non-light-transmitting portion 151 facing the punching area NAA1 does not exceed the cover ink 161, and the side of the non-light-transmitting portion 151 facing away from the punching area NAA1 does not exceed the non-display area NAA; that is, in the present embodiment, the non-light-transmitting portions 151 are located in the non-display area NAA, and the length of the side of the non-light-transmitting portions 151 facing the through hole 300 is smaller than the length of the cover ink 161 located in the punching area NAA 1.
Limiting the non-light-transmitting portion 151 in this area can ensure normal light emission of the display module 100 and ensure normal imaging of the photosensitive module located below the display module 100.
Preferably, the opaque portion 151 is made of black OCA glue, wherein the black OCA glue is formed by doping black particles in the transparent OCA glue.
The material of the non-light-transmitting part 151 is also selected as the OCA glue, so that the structure of the optical glue layer is not affected, and the stability of the display module 100 is ensured.
Further, the light shielding portion 152 of the present embodiment may extend to a side surface of at least one of the plurality of functional layers. Preferably, the light shielding portion 152 may extend from a side surface of the polarizer 140 to a side surface of the support film layer 120. That is, the light shielding portion 152 completely shields the light from the side of the support film layer 120, the panel layer 130, and the polarizer 140 facing the through hole 300, so as to solve the problem of light leakage of the through hole 300, and meanwhile, the dark environment inside the through hole 300 is also beneficial to improving the imaging quality.
Optionally, the light-shielding portion 152 in this embodiment abuts against a portion of the non-light-transmitting portion 151 protruding from the functional layer in the second direction Y; that is, the light shielding portion 152 abuts below the convex portion of the non-light-transmitting portion 151.
For example, the light shielding portion 152 and the non-light-transmitting portion 151 may be bonded together, so that the light shielding portion 152 and the optical adhesive layer 150 are integrally connected, thereby facilitating the subsequent preparation of the display module.
Alternatively, the non-light-transmitting portion 151, the light-shielding portion 152, and the optical adhesive layer 150 in this embodiment may be integrally formed.
The manufacturing steps can be simplified and the production efficiency can be improved by adopting the integrated forming process.
On the premise that the light shielding is satisfied, the smaller the thickness of the light shielding portion 152 in the first direction X, the better, and in the present embodiment, the thickness of the light shielding portion 152 in the first direction X is preferably 10 to 100 μm.
The light shielding portion 152 of the present embodiment is made of a flexible material such as black resin or black silicone, wherein the black resin is selected to be black polyimide, for example.
As can be seen from the above description, in the embodiment, the non-light-transmitting portion 151 is disposed on one side of the optical adhesive layer 150 facing the center line of the through hole 300, the non-light-transmitting portion 151 can block light in the optical adhesive layer 150 from being transmitted to the through hole 300 along the first direction X, and since the thickness of the optical adhesive layer 150 is larger than that of other film layers, the non-light-transmitting portion 151 is disposed in the optical adhesive layer 150 to block most of light leakage in the through hole 300, so that the light leakage problem of the display module 100 is greatly reduced, and the shooting quality is improved. Moreover, since the optical adhesive layer 150 is located above the supporting film layer 120, the screen body layer 130 and the polarizer 140 in the second direction Y, part of the light emitted from other film layers through the through hole 300 can be absorbed, which is beneficial to reducing the light leakage problem of the display module 100.
Further, in the present embodiment, the light shielding portion 152 abutting against the portion of the non-light-transmitting portion 151 extending into the perforation area NAA1 is further disposed, and the light rays of the support film layer 120, the screen body layer 130, and the polarizer 140 facing the through hole 300 are shielded by the light shielding portion 152, so that the problem of light leakage of the through hole 300 can be solved, and the improvement of the imaging quality is facilitated.
Fig. 3 is a schematic structural diagram of a display device according to an embodiment of the present application.
Referring to fig. 3, the present embodiment provides a display device, including the display module 100 as described above, wherein a photosensitive module 200 is disposed on a side of the display module 100 away from the cover plate 160, the photosensitive module 200 includes a photosensitive element 210, and the photosensitive element 210 corresponds to the through hole 300.
Specifically, the display device of this embodiment is provided with a display area AA and a non-display area NAA adjacent to each other in the first direction X, wherein the non-display area NAA is further provided with an perforation area NAA1 therein. The perforation area NAA1 is provided with a through hole 300 penetrating through the composite tape layer 110, the support film layer 120, the screen body layer 130, the polarizer 140, and the optical adhesive layer 150 along the second direction Y, the photosensitive module 200 is bonded and fixed to the composite tape layer 110 of the display module 100, and the photosensitive element 210 is located in the through hole 300. The through hole 300 may have a circular hole, a square hole, a water drop-shaped hole, or the like as required.
In this embodiment, because the display module 100 of the first embodiment is adopted, the non-light-transmitting portion 151 disposed on one side of the optical adhesive layer 150 facing the through hole 300 and the light-shielding portion 152 connected to the non-light-transmitting portion 151 and extending to the supporting film layer 120 along the second direction Y can be used to block the light emitted from the supporting film layer 120, the screen body layer 130, the polarizer 140 and the optical adhesive layer 150 toward one side of the through hole 300, so as to eliminate the light leakage phenomenon of the display device, and simultaneously, the inside of the through hole 300 can maintain a dark environment, which is beneficial to improving the imaging quality.
Fig. 4 is a flowchart illustrating a method for manufacturing a display module according to an embodiment of the present disclosure; fig. 5-8 are schematic structural diagrams corresponding to some steps of a method for manufacturing a display module according to an embodiment of the present disclosure.
Referring to fig. 4 to 8, the present embodiment provides a method for manufacturing a display module, including:
step S101, providing a substrate and an optical adhesive layer, wherein the substrate comprises a plurality of functional layers which are arranged in a stacked mode, a first through hole is formed in the substrate, a second through hole is formed in the optical adhesive layer, a non-light-transmitting part is arranged on one side, facing a center line of the second through hole, of the optical adhesive layer, and a light shielding part is further arranged on one side, facing the second through hole, of the non-light-transmitting part.
As shown in fig. 5 and fig. 6, the substrate of the present embodiment includes a supporting film layer 120, a screen layer 130 and a polarizer 140, which are stacked, and a first through hole penetrating through the supporting film layer 120, the screen layer 130 and the polarizer 140 is formed on the substrate. The optical adhesive layer 150 is provided with a second through hole, a non-light-transmitting portion 151 is provided on a side of the optical adhesive layer 150 facing a center line of the second through hole, and a light-shielding portion 152 is further provided on a side of the non-light-transmitting portion 151 facing the second through hole.
The optical adhesive layer 150, the opaque portion 151, and the light shielding portion 152 may be prepared directly, and the optical adhesive layer 150, the opaque portion 151, and the light shielding portion 152 may be integrally connected. For example, the optical adhesive layer 150, the non-light-transmitting portion 151 and the light-shielding portion 152 may be formed by integral molding; alternatively, the non-light-transmitting portion 151 and the light-shielding portion 152 may be integrally formed and then bonded to the optical adhesive layer 150; alternatively, the opaque portion 151 and the optical adhesive layer 150 may be integrally formed and then the light-shielding portion 152 is bonded to the opaque portion 151; alternatively, the optical adhesive layer 150, the non-light-transmitting portion 151, and the light-shielding portion 152 are integrally connected by bonding.
And S102, laminating the optical adhesive layer on the substrate to enable the first through hole and the second through hole to jointly form a through hole, wherein the shading part is positioned in the through hole and extends to the side face of at least one functional layer.
As shown in fig. 7, after the optical adhesive layer 150 is laminated on the substrate, the axis of the first through hole and the axis of the second through hole coincide, and both of them constitute a through hole. At this time, the optical adhesive layer 150 and the non-light-transmitting portion 151 are located above the substrate, and the light shielding portion 152 is located in the through hole and extends to the side surface of at least one functional layer. In this embodiment, the light shielding portion 152 extends to the side surfaces of the supporting film layer 120, the panel layer 130 and the polarizer 140.
And S103, adhering a cover plate above the optical adhesive layer and adhering a composite adhesive tape layer below the supporting film layer.
As shown in fig. 8, a cover sheet 160 is bonded over the optical adhesive layer 150, and a composite tape layer 110 is bonded under the support film layer 120.
In this embodiment, the optical adhesive layer 150, the non-light-transmitting portion 151, and the light-shielding portion 152 may be prepared on the substrate at one time, without changing the original array and OLED process, the problems of light leakage and affecting the imaging quality may be completely eliminated by only slightly improving the optical adhesive layer 150, and there is no other newly added process, and the method has strong feasibility, low cost, and good effect.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A display module is characterized by comprising a display area and a non-display area which are adjacently arranged along a first direction, wherein a punching area is also arranged in the non-display area;
the punching device is characterized by further comprising a plurality of functional layers, an optical adhesive layer and a cover plate which are stacked along a second direction, through holes penetrating through the functional layers and the optical adhesive layer along the second direction are formed in the punching area, and a non-light-transmitting part is arranged on one side, facing the center line of the through holes, of the optical adhesive layer; a light shielding part is further arranged on one side, facing the through hole, of the non-light-transmitting part, and the light shielding part extends to the side face of at least one functional layer along the second direction;
wherein the first direction is perpendicular to the second direction.
2. The display module according to claim 1, wherein the non-light-transmitting portion protrudes from the functional layer toward a side of the center line of the through hole.
3. The display module of claim 2, wherein the cover plate further comprises a cover plate ink disposed therein, the cover plate ink partially extending into the perforated region; in the first direction, one side of the non-light-transmitting part facing the perforated area does not exceed the cover plate ink, and one side of the non-light-transmitting part facing away from the perforated area does not exceed the non-display area.
4. The display module according to claim 2, wherein the light shielding portion abuts against a portion of the non-light-transmissive portion protruding from the functional layer in the second direction.
5. The display module according to claim 4, wherein the opaque portion, the light shielding portion and the optical adhesive layer are integrally formed.
6. The display module according to claim 1, wherein the opaque portion is made of black OCA glue.
7. The display module according to claim 1, wherein the material of the light shielding portion is black resin or black silica gel.
8. The display module according to claim 1, wherein the functional layers include one or more of a laminated composite tape layer, a support film layer, a screen layer and a polarizer, and the light shielding portion is disposed on a side of the plurality of functional layers.
9. A display device, comprising the display module according to any one of claims 1 to 8, wherein a photosensitive module is disposed on a side of the display module facing away from the cover plate, and the photosensitive module includes a photosensitive element corresponding to the through hole.
10. A manufacturing method of a display module is characterized by comprising the following steps:
providing a substrate and an optical adhesive layer, wherein the substrate comprises a plurality of functional layers which are arranged in a stacked mode, a first through hole is formed in the substrate, a second through hole is formed in the optical adhesive layer, a non-light-transmitting part is arranged on one side, facing a center line of the second through hole, of the optical adhesive layer, and a light shielding part is further arranged on one side, facing the second through hole, of the non-light-transmitting part;
laminating the optical adhesive layer on the substrate, so that the first through hole and the second through hole jointly form a through hole, and the shading part is positioned in the through hole and extends to the side face of at least one functional layer;
and a cover plate is bonded above the optical adhesive layer, and a composite adhesive tape layer is bonded below the supporting film layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110668048.XA CN113421900A (en) | 2021-06-16 | 2021-06-16 | Display module, manufacturing method of display module and display device |
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| CN202110668048.XA CN113421900A (en) | 2021-06-16 | 2021-06-16 | Display module, manufacturing method of display module and display device |
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| CN113421900A true CN113421900A (en) | 2021-09-21 |
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| CN202110668048.XA Pending CN113421900A (en) | 2021-06-16 | 2021-06-16 | Display module, manufacturing method of display module and display device |
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| CN114527595A (en) * | 2022-03-04 | 2022-05-24 | 昆山国显光电有限公司 | Display module, manufacturing method thereof and display device |
| WO2023225965A1 (en) * | 2022-05-26 | 2023-11-30 | 京东方科技集团股份有限公司 | Display module and display apparatus |
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| CN110191216A (en) * | 2019-06-28 | 2019-08-30 | Oppo广东移动通信有限公司 | Cover plate assembly, display device, electronic equipment and its assemble method |
| US20200292871A1 (en) * | 2019-03-11 | 2020-09-17 | Japan Display Inc. | Electro-optical device and electronic equipment |
| WO2021068434A1 (en) * | 2019-10-12 | 2021-04-15 | 武汉华星光电技术有限公司 | Backlight module, display apparatus, and method for manufacturing backlight module |
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| US20200292871A1 (en) * | 2019-03-11 | 2020-09-17 | Japan Display Inc. | Electro-optical device and electronic equipment |
| CN110191216A (en) * | 2019-06-28 | 2019-08-30 | Oppo广东移动通信有限公司 | Cover plate assembly, display device, electronic equipment and its assemble method |
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