CN110922916B - Optical adhesive layer and preparation method thereof, display device and preparation method thereof, and terminal equipment - Google Patents
Optical adhesive layer and preparation method thereof, display device and preparation method thereof, and terminal equipment Download PDFInfo
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- CN110922916B CN110922916B CN201911264557.5A CN201911264557A CN110922916B CN 110922916 B CN110922916 B CN 110922916B CN 201911264557 A CN201911264557 A CN 201911264557A CN 110922916 B CN110922916 B CN 110922916B
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- adhesive layer
- optical adhesive
- hole
- display panel
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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
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
Abstract
The invention relates to the technical field of display, and provides an optical adhesive layer, a preparation method of the optical adhesive layer, a display device, a preparation method of the display device and terminal equipment. The preparation method of the optical adhesive layer comprises the following steps: forming a glue layer body; and when the glue layer body is not cured, a shading material layer is formed in the set area of the glue layer body, so that the shading material is soaked into the glue layer body to form a shading part. The shielding part can shield the light leakage in the subsequent process, so that the camera can not be influenced to take a picture, and the use experience of a user can not be reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to an optical adhesive layer, a preparation method of the optical adhesive layer, a display device provided with the optical adhesive layer, a preparation method of the display device and terminal equipment provided with the display device.
Background
In recent years, the screen occupation ratio is gradually increased to become the mainstream direction of screen design, and the market has higher and higher requirements on the screen occupation ratio from Notch (Notch) screens, water drop screens to hole digging screens.
At present, the hole digging screen becomes a popular trend, and the Notch screen and the water drop screen are gradually replaced because the hole digging screen has the advantages of improving screen occupation ratio, improving screen appearance and the like. But there is the problem of light leak in the hole screen that digs, the light leak mainly takes place at first optics glue film, and this kind of light leak can lead to the camera to shoot and receive the influence, and light also can reduce user's use experience after leaking from openly.
Therefore, it is necessary to research a new optical adhesive layer and a method for manufacturing the optical adhesive layer, a display device mounted with the optical adhesive layer and a method for manufacturing the display device, and a terminal device mounted with the display device.
The above information disclosed in this background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to overcome the defects of light leakage in the prior art, and provides an optical adhesive layer capable of avoiding light leakage, a preparation method of the optical adhesive layer, a display device provided with the optical adhesive layer, a preparation method of the display device and terminal equipment provided with the display device.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
According to one aspect of the present disclosure, there is provided a method for preparing an optical adhesive layer, including:
forming a glue layer body;
and forming a shading material layer in a set area of the adhesive layer body when the adhesive layer body is not cured, so that the shading material is soaked into the adhesive layer body to form a shielding part.
In an exemplary embodiment of the present disclosure, the light-screening material includes a water-soluble acrylic resin, ethanol, triethylamine, a pigment, and an auxiliary agent; the water-soluble acrylic resin is 25-35 parts by mass, the ethanol is 5-15 parts by mass, the triethylamine is 5-10 parts by mass, the pigment is 10-30 parts by mass, and the auxiliary agent is 1-3 parts by mass.
In one exemplary embodiment of the present disclosure, the bondline body comprises an acrylic polymer gel.
According to one aspect of the present disclosure, there is provided an optical adhesive layer prepared according to the method for preparing an optical adhesive layer described in any one of the above.
According to an aspect of the present disclosure, there is provided a display device including:
the display panel is provided with a first through hole;
the first optical adhesive layer is any one of the optical adhesive layers, a second through hole is formed in the first optical adhesive layer, the orthographic projection of the second through hole on the display panel is located in the orthographic projection of the shielding part on the display panel, and the first optical adhesive layer is arranged on the display panel;
the touch panel is provided with a third through hole, the touch panel is arranged on one surface, away from the display panel, of the first optical adhesive layer, and the first through hole, the second through hole and the third through hole penetrate through the touch panel to form a through hole;
and the camera is arranged in the through hole.
In an exemplary embodiment of the present disclosure, the display device further includes:
the polaroid is provided with a fourth through hole and is arranged on one surface of the touch panel, which is deviated from the display panel;
the second optical adhesive layer is provided with a fifth through hole, the orthographic projection of the fifth through hole on the display panel is positioned in the orthographic projection of the shielding part on the display panel, the second optical adhesive layer is arranged on one surface of the polaroid, which is deviated from the display panel, and the fourth through hole, the fifth through hole and the via hole are communicated to jointly accommodate the camera;
the cover plate is arranged on one surface, deviating from the display panel, of the second optical adhesive layer;
and the heat dissipation film is arranged on one surface of the display panel, which deviates from the first optical adhesive layer.
According to an aspect of the present disclosure, there is provided a terminal device including: the display device according to any one of the above.
According to an aspect of the present disclosure, there is provided a method of manufacturing a display device, including:
providing a display panel;
attaching a first optical adhesive layer to the display panel, wherein the first optical adhesive layer is any one of the optical adhesive layers;
attaching a touch panel to one surface of the first optical adhesive layer, which is far away from the display panel;
a through hole is formed in a preset position and penetrates through the display panel, the first optical adhesive layer and the touch panel, and the orthographic projection of the through hole formed in the first optical adhesive layer on the display panel is located in the orthographic projection of the shielding part on the display panel;
and a camera is arranged in the through hole.
In an exemplary embodiment of the present disclosure, before the via hole is opened at the preset position, the preparation method further includes:
attaching a polaroid to one surface of the touch panel, which is far away from the display panel;
attaching a second optical adhesive layer to one surface of the polarizer, which is far away from the display panel, wherein the second optical adhesive layer is any one of the optical adhesive layers; the through hole also penetrates through the polarizer and the second optical adhesive layer, and the orthographic projection of the through hole formed on the second optical adhesive layer on the display panel is positioned in the orthographic projection of the shielding part on the display panel;
after the camera is installed in the through hole, the preparation method further comprises the following steps:
and a cover plate is attached to one surface of the second optical adhesive layer, which deviates from the display panel.
In an exemplary embodiment of the present disclosure, before providing a display panel, the method further includes:
and a heat dissipation film is attached to one surface of the display panel, which deviates from the first optical adhesive layer.
According to the technical scheme, the invention has at least one of the following advantages and positive effects:
according to the preparation method of the optical adhesive layer, the shading material layer is formed in the set area of the adhesive layer body when the adhesive layer body is not cured, so that the shading material is soaked into the adhesive layer body to form the shading part. The shielding part can shield the light leakage in the subsequent process, so that the camera can not be influenced to take a picture, and the use experience of a user can not be reduced.
According to the display device, the first optical adhesive layer is arranged between the display panel and the touch panel to adhere the display panel and the touch panel; a first through hole is formed in the display panel; a second through hole is formed in the first optical adhesive layer, and the orthographic projection of the second through hole on the display panel is located in the orthographic projection of the shielding part on the display panel; a third through hole is formed in the touch panel; the first through hole, the second through hole and the third through hole penetrate through the substrate to form a through hole; the camera is installed in the through hole. The orthographic projection of the second through hole on the display panel is located the shielding part and is in the orthographic projection on the display panel, form the round around the second through hole and shelter from the ring, should shelter from the ring and can block that display panel's light spills from this department, consequently, light can not spill from openly to can not reduce user experience, also can not influence the camera in the through hole and shoot.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a schematic diagram of a related art display device before opening holes;
FIG. 2 is a schematic view of the structure of FIG. 1 after the opening is made and the cover plate and the camera are installed;
FIG. 3 is a schematic diagram of the light leakage principle of FIG. 2;
FIG. 4 is a schematic flow chart diagram of one embodiment of a method for making an optical adhesive layer according to the present invention;
FIG. 5 is a schematic structural diagram of an embodiment of an optical adhesive layer according to the present invention;
FIG. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the structure of FIG. 5 after the optical adhesive layer is perforated;
FIG. 8 is a schematic block diagram of a process for fabricating a display device according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a semi-finished product according to an embodiment of the present invention.
The reference numerals of the main elements in the figures are explained as follows:
1. a heat dissipating film; 2. a display panel;
3. an optical adhesive layer; 31. a first optical adhesive layer; 32. a second optical adhesive layer; 33. a shielding portion; 34. an annular shielding portion; 35. a second through hole; 36. a fifth through hole;
4. a touch panel; 5. a polarizer;
6. a cover plate; 61. a shielding layer;
7. a via hole; 8. a camera is provided.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
Referring to fig. 1, a schematic diagram of a related art display device before opening a hole; the display device may include a heat dissipation film 1, a display panel 2, a first optical adhesive layer 31, a touch panel 4, a polarizer 5, and a second optical adhesive layer 32. Display panel 2 sets up on heat dissipation film 1, and first optical cement layer 31 sets up the one side that deviates from heat dissipation film 1 at display panel 2, and touch panel 4 sets up the one side that deviates from heat dissipation film 1 at first optical cement layer 31, and polaroid 5 sets up the one side that deviates from heat dissipation film 1 at touch panel 4, and second optical cement layer 32 sets up the one side that deviates from heat dissipation film 1 at polaroid 5. The heat dissipation film 1 is provided with a through hole.
Referring to fig. 2, a schematic structural diagram of fig. 1 is shown after a hole is opened and a cover plate 6 and a camera 8 are installed; through holes 7 are formed in the display panel 2, the first optical adhesive layer 31, the touch panel 4, the polarizer 5 and the second optical adhesive layer 32, and the through holes 7 are communicated with the through holes in the heat dissipation film 1. A camera 8 is mounted in the via hole 7. The cover plate 6 is attached to the surface of the second optical adhesive layer 32 facing away from the heat dissipation film 1. The apron 6 is transparent glass apron, is provided with annular shielding layer 61 in the one side of apron 6 with the laminating of second optical cement layer 32, and light can shine to camera 8 through shielding layer 61 middle part light zone, and the shielding layer can shelter from stray light and get into camera 8.
Refer to fig. 3 for a schematic diagram of the light leakage principle of fig. 2. The first optical adhesive layer 31 becomes a light leakage channel at the side of the via hole 7, and the light emitted from the display panel 2 is transmitted in the first optical adhesive layer 31 or emitted from the side into the via hole 7 through multiple refractions.
In the related art, methods such as coating ink on the sidewall of the via hole 7 or filling foam around the camera 8 are adopted to improve light leakage of the via hole 7. Ink is coated on the side wall of the via hole 7, and the coating layer is thin, so that light leakage cannot be effectively blocked. Fill the bubble cotton around camera 8, when camera 8 focus was removed, have camera 8 and the cotton risk of bumping of bubble, also can increase via hole 7 frames simultaneously, reduce user experience.
The invention firstly provides a preparation method of an optical adhesive layer 3, and the method refers to a flow schematic block diagram of an embodiment of the preparation method of the optical adhesive layer 3 shown in FIG. 4; the preparation method can comprise the following steps:
and step S10, forming a glue layer body.
Step S20, forming a light-shielding material layer in a predetermined area of the adhesive layer body when the adhesive layer body is not cured, so that the light-shielding material is soaked into the adhesive layer body to form the shielding portion 33.
The respective steps of the method for producing the optical adhesive layer 3 of the present invention will be described in detail.
And step S10, forming a glue layer body.
In the present exemplary embodiment, the glue line body is an OCA glue (Optical Clear Adhesive), and the glue line body includes an acrylic polymer gel. The OCA adhesive is one of important raw materials of a touch screen, is prepared by manufacturing an optical acrylic adhesive into a non-base material, and then laminating a release film on each of an upper bottom layer and a lower bottom layer, and is a double-sided adhesive tape without a base material. Utilize OCA to glue can realize touch panel 4 and display panel 2's full laminating to eliminate the air bed between touch-sensitive screen and the display screen, thereby improve display effect, and isolated dust and steam.
Step S20, forming a light-shielding material layer in a predetermined area of the adhesive layer body when the adhesive layer body is not cured, so that the light-shielding material is soaked into the adhesive layer body to form the shielding portion 33.
In the present exemplary embodiment, the light-shielding material is an aqueous ink including a water-soluble acrylic resin, ethanol, triethylamine, a pigment, and an auxiliary agent; the mass portion of the water-soluble acrylic resin is about 25-35 parts, the mass portion of the ethanol is about 5-15 parts, the mass portion of the triethylamine is about 5-10 parts, the mass portion of the pigment is about 10-30 parts, and the mass portion of the auxiliary agent is about 1-3 parts. The aqueous ink may also include an amount of deionized water. The impregnation speed of the light-shielding material is proportional to the temperature, i.e., the higher the temperature, the faster the impregnation speed, and the lower the temperature, the slower the impregnation speed. The pigment can be black pigment, and the black shading performance is strongest. But also dark blue pigments or dark grey pigments, etc. The light-screening material may also be a hydrophilic black or dark pigment.
In the present exemplary embodiment, the light blocking material is formed on the gel layer body by spraying or sprinkling. The position of the set area is the position where the via hole 7 is formed in the subsequent process, and the size of the set area is larger than that of the via hole 7, that is, after the optical adhesive layer 3 is attached to the display panel 2, the orthographic projection of the via hole 7 on the display panel 2 is located in the orthographic projection of the set area on the display panel 2.
Further, the present invention also provides an optical adhesive layer 3, referring to the schematic structural diagram of an embodiment of the optical adhesive layer 3 shown in fig. 5; the optical adhesive layer 3 is prepared according to the above-described preparation method of the optical adhesive layer 3. The optical adhesive layer 3 includes an adhesive layer body, and a shielding portion 33 is provided in a predetermined region of the adhesive layer body. The shielding portion 33 completely occupies the setting area, i.e., the size and position of the shielding portion 33 are the same as those of the setting area. The position of the set area is the position where the via hole 7 is formed in the subsequent process, and the size of the set area is larger than that of the via hole 7, that is, after the optical adhesive layer 3 is attached to the display panel 2, the orthographic projection of the via hole 7 on the display panel 2 is located in the orthographic projection of the set area on the display panel 2.
In addition, a first release film can be arranged on the lower surface of the optical adhesive layer 3, and a second release film can be arranged on the upper surface of the optical adhesive layer 3, so that the unused optical adhesive layer 3 can be protected, and the optical adhesive layer 3 can be prevented from losing efficacy. When the optical adhesive layer 3 needs to be used, the first release film and the second release film can be removed to attach the touch panel 4 and the display panel 2 together, so that the attachment performance of the optical adhesive layer 3 is improved.
The first release film and the second release film can be both PE (Polyethylene) release films, and are nontoxic, tasteless and good in chemical stability. Of course, in addition to using PE release films as the first release film and the second release film, PET (Polyethylene terephthalate) release films or the like may be used as the first release film and the second release film.
Further, the invention also provides a display device, which may include a display panel 2, a first optical adhesive layer 31, a touch panel 4 and a camera 8. The display panel 2 is provided with a first through hole; the first optical adhesive layer 31 is the above optical adhesive layer 3, and is provided with a second through hole 35, an orthogonal projection of the second through hole 35 on the display panel 2 is located in an orthogonal projection of the shielding portion 33 on the display panel 2, and the first optical adhesive layer 31 is provided on the display panel 2; a third through hole is formed in the touch panel 4, the touch panel 4 is arranged on the surface, away from the display panel 2, of the first optical adhesive layer 31, and the first through hole, the second through hole 35 and the third through hole penetrate through to form a through hole 7; the camera 8 is installed in the via hole 7.
In the present exemplary embodiment, the first optical adhesive layer 31 is disposed between the display panel 2 and the touch panel 4, and the display panel 2 and the touch panel 4 are bonded by the first optical adhesive layer 31. The first through hole on the display panel 2, the second through hole 35 on the first optical adhesive layer 31 and the third through hole on the touch panel 4 penetrate through to form a through hole 7, and the camera 8 is installed in the through hole 7 to form a hole digging screen. The orthographic projection of the second through hole 35 on the display panel 2 is located the shielding part 33 in the orthographic projection on the display panel 2, form the round around the second through hole 35 and shield the ring, should shelter from the ring and can block that the light of display panel 2 leaks from this department, consequently, light can not leak from the front to can not reduce user experience, can not influence the camera 8 in the through hole yet and shoot.
Referring to fig. 6, a schematic structural diagram of an embodiment of a display device according to the present invention is shown.
The display device may further include a heat dissipation film 1, a polarizer 5, a second optical adhesive layer 32, and a cover plate 6. From bottom to top, the heat dissipation film 1, the display panel 2, the first optical adhesive layer 31, the touch panel 4, the polarizer 5, the second optical adhesive layer 32 and the cover plate 6 are sequentially arranged. Specifically, the method comprises the following steps: the display panel 2 is arranged on the heat dissipation film 1, the first optical adhesive layer 31 is arranged on the display panel 2, the touch panel 4 is arranged on the first optical adhesive layer 31, the polarizer 5 is arranged on the touch panel 4, the second optical adhesive layer 32 is arranged on the polarizer 5, and the cover plate 6 is arranged on the second optical adhesive layer 32.
The heat dissipation film 1 is provided with a through hole. The display panel 2 is provided with a first through hole. Referring to fig. 7, which is a schematic structural diagram of the optical adhesive layer 3 after the hole is opened in fig. 5, the first optical adhesive layer 31 is the above-mentioned optical adhesive layer 3, and is provided with a second through hole 35, and an orthogonal projection of the second through hole 35 on the display panel 2 is located in an orthogonal projection of the shielding portion 33 on the display panel 2, so that an annular shielding portion 34 is formed around the second through hole 35. The touch panel 4 is provided with a third through hole. The polarizer 5 is provided with a fourth through hole. As shown in fig. 7, the second optical adhesive layer 32 is the above optical adhesive layer 3, a fifth through hole 36 is formed on the second optical adhesive layer 32, and an orthogonal projection of the fifth through hole 36 on the display panel 2 is located in an orthogonal projection of the shielding portion 33 on the display panel 2, so that an annular shielding portion 34 is formed around the fifth through hole 36.
The diameter of the first through hole, the diameter of the second through hole 35, the diameter of the third through hole and the diameter of the fourth through hole are the same, and the diameter of the fifth through hole 36 is larger than the diameter of the fourth through hole. The first through hole, the second through hole 35, the third through hole, the fourth through hole and the fifth through hole 36 penetrate to form a through hole 7, and the camera 8 is installed in the through hole 7. The apron 6 is transparent glass apron, is provided with annular shielding layer 61 in the one side of apron 6 with the laminating of second optical cement layer 32, and light can shine to camera 8 through shielding layer 61 middle part light zone, and shielding layer 61 can shelter from stray light and get into camera 8.
Further, the invention also provides a terminal device, which may include the display device described above. The specific structure of the display device has been described in detail above, and therefore, the detailed description thereof is omitted. The terminal device can be a mobile device such as a mobile phone, a wearable device such as a tablet computer and a watch, a VR device, a display screen of an instrument, and the like. Those skilled in the art can select the terminal device accordingly according to the specific application of the terminal device.
Compared with the prior art, the beneficial effects of the terminal device provided by the embodiment of the invention are the same as those of the display device provided by the embodiment, and are not repeated herein.
Further, the present invention also provides a method for manufacturing a display device, referring to the schematic flow diagram of an embodiment of the method for manufacturing a display device of the present invention shown in fig. 8, the method may include the following steps:
in step S50, a display panel 2 is provided.
Step S60, attaching a first optical adhesive layer 31 on the display panel 2, where the first optical adhesive layer 31 is the optical adhesive layer 3.
In step S70, a touch panel 4 is attached to one surface of the first optical adhesive layer 31 facing away from the display panel 2.
Step S80, opening a via hole 7 at a preset position, where the via hole 7 penetrates through the display panel 2, the first optical adhesive layer 31 and the touch panel 4, and an orthogonal projection of the via hole 7 formed on the first optical adhesive layer 31 on the display panel 2 is located in an orthogonal projection of the shielding portion 33 on the display panel 2.
In step S90, the camera 8 is mounted in the via hole 7.
The method for manufacturing the display device of the present invention will be described in detail below.
First, the heat dissipation film 1 is bonded to the surface of the display panel 2 facing away from the first optical adhesive layer 31. The display panel 2 includes a first surface and a second surface that are disposed opposite to each other, and the second surface is a light emitting surface of the display panel 2. A heat dissipation film 1 is bonded to a first surface of the display panel 2.
Then, a first optical adhesive layer 31 is attached to the second surface of the display panel 2, and the first optical adhesive layer 31 is the optical adhesive layer 3. The specific structure of the optical adhesive layer 3 has been described in detail above. Therefore, the description thereof is omitted.
Next, the touch panel 4 is attached to the surface of the first optical adhesive layer 31 facing away from the display panel 2. And a polarizer 5 is attached to one surface of the touch panel 4, which is far away from the display panel 2.
And adhering a second optical adhesive layer 32 to the surface of the polarizer 5 away from the display panel 2 to form the semi-finished product shown in fig. 9. The second optical adhesive layer 32 is the optical adhesive layer 3. The specific structure of the optical adhesive layer 3 has been described in detail above. Therefore, the description thereof is omitted.
Then, the second optical adhesive layer 32, the polarizer 5, the touch panel 4, the first optical adhesive layer 31 and the display panel 2 are perforated by laser from the second optical adhesive layer 32, so that a fifth through hole 36 is formed on the second optical adhesive layer 32, a fourth through hole is formed on the polarizer 5, a third through hole is formed on the touch panel 4, a second through hole 35 is formed on the first optical adhesive layer 31 and a first through hole is formed on the display panel 2. And the diameter of the fifth through hole 36 is greater than that of the fourth through hole, and the diameter of the first through hole, the diameter of the second through hole 35, the diameter of the third through hole and the diameter of the fourth through hole are the same. Of course, the via 7 may also be formed by a photolithographic method.
Finally, the camera 8 is installed in the via hole 7, and after the camera 8 is installed, the cover plate 6 is attached to the surface, deviating from the display panel 2, of the second optical adhesive layer 32, so that the structural schematic diagram of the display device shown in fig. 6 is formed.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments, and the features discussed in connection with the embodiments are interchangeable, if possible. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.
The terms "about" and "approximately" as used herein generally mean within 20%, preferably within 10%, and more preferably within 5% of a given value or range. The amounts given herein are approximate, meaning that the meaning of "about", "approximately" or "approximately" may still be implied without specific recitation.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". Other relative terms, such as "high", "low", "top", "bottom", and the like, are also intended to have similar meanings. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
In this specification, the terms "a", "an", "the" and "the" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and are not limiting on the number of their objects.
It is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the description. The invention is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications fall within the scope of the present invention. It will be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for carrying out the invention and will enable those skilled in the art to utilize the invention.
Claims (9)
1. A preparation method of an optical adhesive layer is characterized by comprising the following steps:
forming a glue layer body;
forming a shading material layer in a set area of the adhesive layer body when the adhesive layer body is not cured, so that the shading material is soaked into the adhesive layer body to form a shading part;
the shading material comprises water-soluble acrylic resin, ethanol, triethylamine, pigment and an auxiliary agent;
the bond line body includes an acrylic polymer gel.
2. The method for preparing the optical adhesive layer according to claim 1, wherein the water-soluble acrylic resin is 25 to 35 parts by mass, the ethanol is 5 to 15 parts by mass, the triethylamine is 5 to 10 parts by mass, the pigment is 10 to 30 parts by mass, and the auxiliary agent is 1 to 3 parts by mass.
3. An optical adhesive layer, characterized in that it is produced by the method of any one of claims 1 to 2.
4. A display device, comprising:
the display panel is provided with a first through hole;
a first optical adhesive layer according to claim 3, wherein a second through hole is formed in the first optical adhesive layer, an orthogonal projection of the second through hole on the display panel is located in an orthogonal projection of the shielding portion on the display panel, and the first optical adhesive layer is disposed on the display panel;
the touch panel is provided with a third through hole, the touch panel is arranged on one surface, away from the display panel, of the first optical adhesive layer, and the first through hole, the second through hole and the third through hole penetrate through the touch panel to form a through hole;
and the camera is arranged in the through hole.
5. The display device according to claim 4, further comprising:
the polaroid is provided with a fourth through hole and is arranged on one surface of the touch panel, which is deviated from the display panel;
the second optical adhesive layer is the optical adhesive layer of claim 3, and is provided with a fifth through hole, an orthographic projection of the fifth through hole on the display panel is located in an orthographic projection of the shielding portion on the display panel, the second optical adhesive layer is arranged on one surface of the polarizer, which is far away from the display panel, and the fourth through hole, the fifth through hole and the via hole are communicated to jointly accommodate the camera;
the cover plate is arranged on one surface, deviating from the display panel, of the second optical adhesive layer;
and the heat dissipation film is arranged on one surface of the display panel, which deviates from the first optical adhesive layer.
6. A terminal device, comprising: a display device as claimed in claim 4 or 5.
7. A method of manufacturing a display device, comprising:
providing a display panel;
attaching a first optical adhesive layer on the display panel, wherein the first optical adhesive layer is the optical adhesive layer of claim 3;
attaching a touch panel to one surface of the first optical adhesive layer, which is far away from the display panel;
a through hole is formed in a preset position and penetrates through the display panel, the first optical adhesive layer and the touch panel, and the orthographic projection of the through hole formed in the first optical adhesive layer on the display panel is located in the orthographic projection of the shielding part on the display panel;
and a camera is arranged in the through hole.
8. The method for manufacturing a display device according to claim 7, wherein before the via hole is opened at the predetermined position, the method further comprises:
attaching a polaroid to one surface of the touch panel, which is far away from the display panel;
attaching a second optical adhesive layer to one surface of the polarizer, which is far away from the display panel, wherein the second optical adhesive layer is the optical adhesive layer in claim 3; the through hole also penetrates through the polarizer and the second optical adhesive layer, and the orthographic projection of the through hole formed on the second optical adhesive layer on the display panel is positioned in the orthographic projection of the shielding part on the display panel;
after the camera is installed in the through hole, the preparation method further comprises the following steps:
and a cover plate is attached to one surface of the second optical adhesive layer, which deviates from the display panel.
9. The method of claim 7, wherein before providing a display panel, the method further comprises:
and a heat dissipation film is attached to one surface of the display panel, which deviates from the first optical adhesive layer.
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| CN201911264557.5A CN110922916B (en) | 2019-12-11 | 2019-12-11 | Optical adhesive layer and preparation method thereof, display device and preparation method thereof, and terminal equipment |
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| CN111650768B (en) * | 2020-06-09 | 2022-04-26 | 武汉华星光电半导体显示技术有限公司 | Method for manufacturing display device |
| US11342542B2 (en) | 2020-06-09 | 2022-05-24 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Manufacturing method of display device |
| CN112310315B (en) * | 2020-10-28 | 2022-07-12 | 武汉华星光电半导体显示技术有限公司 | Display panel and manufacturing method thereof |
| CN112885243A (en) * | 2021-02-26 | 2021-06-01 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN115669269A (en) * | 2021-05-17 | 2023-01-31 | 京东方科技集团股份有限公司 | Display module, display device and manufacturing method thereof |
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| CN101533173B (en) * | 2008-03-12 | 2011-04-06 | 中华映管股份有限公司 | Liquid crystal display panel and production method thereof |
| CN102819341B (en) * | 2011-06-09 | 2016-02-24 | 天津富纳源创科技有限公司 | The preparation method of touch panel |
| CN204832720U (en) * | 2015-07-20 | 2015-12-02 | Tcl显示科技（惠州）有限公司 | LCD module |
| KR102560742B1 (en) * | 2016-04-14 | 2023-07-27 | 엘지디스플레이 주식회사 | Liquid Crystal Display device having two prism sheet |
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