CN115311938A - Display module - Google Patents
Display module Download PDFInfo
- Publication number
- CN115311938A CN115311938A CN202211006998.7A CN202211006998A CN115311938A CN 115311938 A CN115311938 A CN 115311938A CN 202211006998 A CN202211006998 A CN 202211006998A CN 115311938 A CN115311938 A CN 115311938A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- display screen
- protective
- printed circuit
- display module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 78
- 239000011241 protective layer Substances 0.000 claims abstract description 46
- 239000004831 Hot glue Substances 0.000 claims description 21
- 239000010410 layer Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 abstract description 13
- 238000000576 coating method Methods 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000001012 protector Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 12
- 239000012790 adhesive layer Substances 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Classifications
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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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses display module assembly belongs to display device technical field. The display module comprises a display screen; the circuit board assembly comprises a printed circuit board and a protective shell, one side of the printed circuit board is arranged close to the display screen, and the protective shell is connected with one side of the printed circuit board, which is far away from the display screen; the protective layer is arranged on one side of the protective shell, which is far away from the printed circuit board, and is formed by solidifying a protective object. One side of keeping away from printed circuit board at the protective housing is coated with liquid protector, forms solid-state inoxidizing coating after making liquid protector solidify, makes the inoxidizing coating adhere to on the protective housing, because the protector solidifies on the protective housing and forms the inoxidizing coating, the inoxidizing coating covers on the protective housing completely, forms a whole with the protective housing, can reduce the possibility that the inoxidizing coating upwarps to the clean and tidy nature of circuit board assembly outward appearance has been improved.
Description
Technical Field
This application belongs to display device technical field, especially relates to a display module assembly.
Background
The display module assembly wide application is in electronic product, and the display module assembly mainly plays the effect of display image, and the mode that sets up between display screen and the circuit board is different among the different display module assemblies, need set up the one deck inoxidizing coating on the circuit board behind the installation circuit board, avoids appearing the problem of light leak, causes the effect variation of display screen. In the related art, a black adhesive layer is usually disposed on the circuit board to avoid light leakage, but the adhesive layer is adhered to the circuit board, which is prone to warping and wrinkling.
Disclosure of Invention
The application aims at solving the technical problem that the protective layer is raised at least to a certain extent. Therefore, the application provides a display module.
In a first aspect, an embodiment of the present application provides a display module, including:
a display screen;
the circuit board assembly comprises a printed circuit board and a protective shell, one side of the printed circuit board is close to the display screen, and the protective shell is connected with one side of the printed circuit board, which is far away from the display screen;
the protective shell is arranged on one side, away from the printed circuit board, of the protective shell, and the protective layer is formed by solidifying a protective object.
One side of printed circuit board is close to the display screen setting, the opposite side then is connected with the protective housing, the protective housing mainly plays the effect of protective circuit board, avoid printed circuit board to receive the damage of other spare parts, keep away from printed circuit board's one side at the protective housing and scribble liquid protector, form solid-state inoxidizing coating after making liquid protector solidify, make the inoxidizing coating adhere to on the protective housing, because the protector solidifies the formation inoxidizing coating on the protective housing, the inoxidizing coating covers on the protective housing completely, form a whole with the protective housing, can reduce the possibility that the inoxidizing coating upwarps, thereby the clean and tidy nature of circuit board assembly outward appearance has been improved.
In an alternative embodiment of the present application, the protective layer is formed by spraying a protective substance on a side of the protective print shell away from the printed circuit board.
In an optional embodiment of the present application, the circuit board assembly further includes a flexible circuit board, the flexible circuit board is disposed between the printed circuit board and the display screen, and the protective layer is disposed on the flexible circuit board.
In an optional embodiment of this application, the flexible circuit board is a plurality of, and is a plurality of the flexible circuit board interval sets up the printed circuit board with between the display screen set up in adjacent two the clearance of flexible circuit board set up the inoxidizing coating.
In the optional embodiment of this application, printed circuit board sets up one side of display screen, flexible circuit board includes interconnect's first linkage segment and second linkage segment, first linkage segment with the second linkage segment is the contained angle setting, first linkage segment with the display screen is connected, the second linkage segment with printed circuit board connects.
In an optional embodiment of the present application, the printed circuit board is annularly arranged around the display screen, and the protective layer is arranged on one side of the display screen close to the printed circuit board.
In an optional embodiment of the present application, the printed circuit board has a fixing hole thereon, and the display module further includes an adhesive layer filled in the fixing hole.
In the optional embodiment of this application, the display module assembly still includes hot melt adhesive layer and polarizing plate, the polarizing plate laminating is in on the display screen, and with printed circuit board interval sets up, hot melt adhesive layer is filled the polarizing plate with in printed circuit board's the clearance.
In an alternative embodiment of the present application, the printed circuit board is annularly arranged around the display screen, and the hot melt adhesive layer is annularly arranged around the display screen.
In an optional embodiment of the present application, the display module further includes a backlight module, the backlight module is disposed at one side of the display module, and the printed circuit board is annularly disposed around the backlight module.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic structural diagram of a display module provided in an embodiment of the present application.
Reference numerals are as follows: 100-a display module, 110-a display screen, 120-a circuit board assembly, 122-a printed circuit board, 124-a protective shell, 126-a flexible circuit board, 130-a protective layer, 140-a hot melt adhesive layer, 150-a polarizing plate and 160-a backlight module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement condition, etc. of the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Display module assembly wide application is in electronic product, and display module assembly mainly plays the effect of display image, and the mode that sets up between display screen and the circuit board is different among the different display module assembly, need set up the one deck inoxidizing coating on the circuit board behind the installation circuit board, avoids appearing the problem of light leak, causes the effect variation of display screen. In the related art, a black adhesive layer is usually disposed on the circuit board to avoid light leakage, but the adhesive layer is adhered to the circuit board, which is prone to warping and wrinkling. The display module and the manufacturing method thereof can improve the problems, and the warping problem of the circuit board can be improved, so that the working effect and the appearance attractiveness of the whole display module cannot be improved after warping is reduced.
The application is described below with reference to specific embodiments in conjunction with the following drawings:
referring to fig. 1, the display module 100 of the present embodiment can reduce the possibility of the warping of the protective layer 130, so as to improve the appearance tidiness of the circuit board assembly 120.
In this embodiment, the display module 100 includes:
a display screen 110;
the circuit board assembly 120 comprises a printed circuit board 122 and a protective shell 124, wherein one side of the printed circuit board 122 is arranged close to the display screen 110, and the protective shell 124 is connected with one side of the printed circuit board 122 far away from the display screen 110;
and the protective layer 130 is arranged on the side, away from the printed circuit board 122, of the protective shell 124, and the protective layer 130 is formed by solidifying the protective object.
In this embodiment, one side of the printed circuit board 122 is disposed close to the display screen 110, and the other side is connected to the protective casing 124, the protective casing 124 mainly plays a role of protecting the circuit board, so as to prevent the printed circuit board 122 from being damaged by other components, a liquid protective material is coated on one side of the protective casing 124 away from the printed circuit board 122, so that the liquid protective material is solidified to form a solid protective layer 130, and the protective layer 130 is attached to the protective casing 124, because the protective material is solidified to form the protective layer 130 on the protective casing 124, the protective layer 130 completely covers the protective casing 124 and forms a whole with the protective casing 124, which can reduce the possibility of the protective layer 130 warping, thereby improving the appearance tidiness of the circuit board assembly 120.
Similarly, since the printed circuit board 122 is disposed on one side of the display screen 110, the protective layer 130 is black, which can reduce light leakage of the printed circuit board 122 and improve the display effect of the display screen 110. If the protection layer 130 is warped, the problem of light leakage of the circuit board assembly 120 is also caused, and after the protection layer 130 is formed on the protection shell 124 through the protector, the warping problem is solved, the problem of light leakage cannot occur, and the display effect of the display screen 110 is improved.
It will be readily appreciated that the protective layer 130 is formed after the protective material has solidified, i.e., in an initial state, the protective material may be in a liquid state, and the protective material is applied to the protective shell 124, and the protective material is solidified on the protective shell 124, thereby reducing the possibility of warping.
In the present embodiment, the protective layer 130 is formed by spraying a shield on a side of the protective case 124 away from the printed circuit board 122.
In this embodiment, when the protective layer 130 is disposed, a spraying manner may be selected, and the protective material is sprayed on a side of the protective shell 124 away from the printed circuit board 122 a small number of times, so that the protective material is gradually solidified on the protective shell 124 to form the protective layer 130.
As for the thickness of the protective layer 130, it relates to the light transmittance of the protective layer 130, and the better the light transmittance of the protective layer 130 is, the larger the thickness of the protective layer 130 should be set, so as to avoid light leakage. Conversely, if the light transmittance of the protective layer 130 is lower, the thickness of the protective layer 130 may be set to be smaller, so as to ensure the circuit board assembly 120 to be light-proof.
It should be noted that, in the present embodiment, the protective layer 130 is formed by spraying, but is not limited thereto, in other embodiments of the present invention, the protective layer 130 may also be formed by a hot melt adhesive, a hot melt adhesive is disposed on a side of the protective shell 124 away from the printed circuit board 122, and the hot melt adhesive is melted by the hot melt adhesive, so that the hot melt adhesive is uniformly attached to the protective shell 124, the adhesion with the protective shell 124 is improved, and the problem that the protective layer 130 is raised is avoided.
In the present embodiment, the circuit board assembly 120 further includes a flexible circuit board 126, the flexible circuit board 126 connects the printed circuit board 122 and the display screen 110, and a shielding layer 130 is disposed on a side of the flexible circuit board 126 away from the display screen 110.
The flexible circuit board 126 is connected with the printed circuit board 122 and the display screen 110, the flexible circuit board 126 is connected with the display screen 110, pixel points on a display need to be avoided when the flexible circuit board 126 is connected with the display screen 110, one side of the flexible circuit board 126 far away from the display screen 110 is provided with the protective layer 130, the flexible circuit board 126 can be protected, meanwhile, certain light shading performance can be achieved, and the risk of light leakage is reduced.
It is easy to understand that the material of the shielding layer 130 on the flexible circuit board 126 and the material of the shielding layer 130 on the protective casing 124 are the same, and the description thereof is omitted here.
In order to improve the connection effect between the flexible circuit board 126 and the display screen 110, the flexible circuit board 126 is lapped on the display screen 110, so that the connection stability between the flexible circuit board 126 and the display screen 110 is improved, and the risk of separation between the flexible circuit board 126 and the display screen 110 is reduced.
In the present embodiment, there are a plurality of flexible circuit boards 126, and the plurality of flexible circuit boards 126 are connected to the printed circuit board 122 and the display screen 110.
The flexible circuit board 126 is connected to the display screen 110 and one side of the printed circuit board 122 away from the protective casing 124, because the display screen 110 is relatively large, the circuit board assembly 120 is disposed on one side of the display screen 110, even around the display screen 110, so that the area of the circuit board is relatively large, and the flexible circuit board 126 mainly plays a role in connection, and thus, can be set to be a plurality of small areas. I.e., the larger the printed circuit board 122, the greater the number of flexible circuit boards 126.
The whole circuit board assembly 120 is annularly arranged around the display screen 110, and the printed circuit board 122 and the display screen 110 are arranged at an included angle, even vertically, so that the flexible circuit board 126 may have a certain bending angle in order to facilitate the connection between the printed circuit board 122 and the display screen 110 by the flexible circuit board 126.
In the embodiment, the printed circuit board 122 is disposed around the display screen 110, and a protective layer 130 is disposed on a side of the display screen 110 close to the printed circuit board 122.
The display screen 110 has a display surface and a back surface opposite to the display surface, one side of the display screen 110 is all other surfaces connecting the display surface and the back surface, and the protective layer 130 is arranged on one side of the display screen 110 close to the printed circuit board 122, so that the edge of the display screen 110 can be protected, and the edge of the display screen 110 can be prevented from being damaged. Meanwhile, the protective layer 130 is arranged on the side, so that the light leakage of the display screen 110 can be reduced, and the display effect of the display screen 110 is improved.
In the embodiment, the printed circuit board 122 has a fixing hole, and the display module 100 further includes a glue layer filled in the fixing hole.
The printed circuit board 122 is provided with fixing holes, which are mostly screw holes and are mainly used for fixing the printed circuit board 122. And the screw probably has some clearances at the in-process with the fixed orifices complex and leads to having some light to spill from the fixed orifices, fills the glue film in the fixed orifices, makes the glue film can play the shading effect, reduces the light leak of fixed orifices.
Wherein, in order to improve the light-proofness of glue film, the glue film is the black material.
In this embodiment, the display module 100 further includes a hot-melt adhesive layer 140 and a polarizing plate 150, the polarizing plate 150 is attached to the display screen 110 and spaced apart from the protective shell 124, and the hot-melt adhesive layer 140 is filled in a gap between the polarizing plate 150 and the printed circuit board 122.
The polarizing plate 150 is disposed on the display surface of the display screen 110, and the flexible circuit board 126 is disposed under the polarizing plate 150, so that a gap exists between the polarizing plate 150 and the protective layer 124, and the gap is filled with the hot-melt adhesive layer 140, so that the hot-melt adhesive layer 140 and the polarizing plate 150 are flush with each other, thereby ensuring the appearance of the display module 100.
Similarly, the hot melt adhesive is also black, and black hot melt adhesive can play the shading effect, can reduce the light leak of display screen 110, improves the display effect of display screen 110.
Because the hot melt adhesive layer 140 is disposed between the light shielding sheet and the protective shell 122, the protective shell 122 is disposed around the display screen 110, and the hot melt adhesive layer 140 is also disposed around the display screen 110.
Because the flexible circuit board 126 is disposed under the polarizer 150, the protective layer 130 connected to the flexible circuit board 126 is disposed between the flexible circuit board 126 and the polarizer 150, so that damage to the flexible circuit board 126 caused by other structures such as the polarizer 150 can be reduced, and the service life of the flexible circuit board 126 can be prolonged.
In this embodiment, the display module 100 further includes a backlight module 160, the backlight module 160 is disposed at one side of the display module 100, and the printed circuit board 122 is disposed around the backlight module 160.
The backlight module 160 is disposed on the back of the display screen 110, and mainly plays a role of backlight. That is, the backlight module 160, the display panel 110 and the polarizer 160 are sequentially stacked, and the circuit board assembly 120 is annularly disposed around the same.
In summary, in the display module 100 provided in this embodiment, one side of the printed circuit board 122 is disposed close to the display screen 110, and the other side is connected to the protective casing 124, the protective casing 124 mainly plays a role of protecting the circuit board, so as to prevent the printed circuit board 122 from being damaged by other components, a liquid protective material is coated on one side of the protective casing 124 away from the printed circuit board 122, so that the liquid protective material is solidified to form the solid protective layer 130, and the protective layer 130 is attached to the protective casing 124, because the protective material is solidified to form the protective layer 130 on the protective casing 124, the protective layer 130 completely covers the protective casing 124, and forms a whole with the protective casing 124, which can reduce the possibility of the protective layer 130 warping, thereby improving the appearance tidiness of the circuit board assembly 120.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Claims (10)
1. A display module, comprising:
a display screen;
the circuit board assembly comprises a printed circuit board and a protective shell, one side of the printed circuit board is close to the display screen, and the protective shell is connected with one side of the printed circuit board, which is far away from the display screen;
the protective shell is arranged on one side, far away from the printed circuit board, of the protective shell, and the protective layer is formed by solidifying a protective object.
2. The display module of claim 1, wherein the protective layer is formed by spraying a protective material on a side of the protective printing shell away from the printed circuit board.
3. The display module assembly of claim 1, wherein the circuit board assembly further comprises a flexible circuit board, the flexible circuit board is connected with the printed circuit board and the display screen, and the protective layer is disposed on a side of the flexible circuit board away from the display screen.
4. The display module assembly of claim 3, wherein the flexible circuit board is lapped on the display screen.
5. The display module of claim 1, wherein the printed circuit board is disposed around the display screen, and the protective layer is disposed on a side of the display screen adjacent to the printed circuit board.
6. The display module assembly according to any one of claims 1 to 5, wherein the printed circuit board has a fixing hole thereon, and the display module assembly further comprises a glue layer filled in the fixing hole.
7. The display module according to any one of claims 1 to 5, further comprising a hot melt adhesive layer and a polarizing plate, wherein the polarizing plate is attached to the display screen and spaced from the protective shell, and the hot melt adhesive layer is filled in a gap between the polarizing plate and the protective shell.
8. The display module assembly of claim 7, wherein the protective shell is annularly arranged around the display screen, and the hot melt adhesive layer is annularly arranged around the display screen.
9. The display module assembly according to claim 8, wherein the circuit board assembly further comprises a flexible circuit board, the flexible circuit board is connected to the printed circuit board and the display screen, the protective layer is disposed on a side of the flexible circuit board away from the display screen, and the hot melt adhesive layer is disposed on a side of the protective layer away from the flexible circuit board.
10. The display module according to any one of claims 1-6, wherein the display module further comprises a backlight module, the backlight module is disposed at one side of the display module, and the printed circuit board is disposed around the backlight module.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202211006998.7A CN115311938B (en) | 2022-08-22 | 2022-08-22 | Display module |
Applications Claiming Priority (1)
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CN202211006998.7A CN115311938B (en) | 2022-08-22 | 2022-08-22 | Display module |
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CN115311938A true CN115311938A (en) | 2022-11-08 |
CN115311938B CN115311938B (en) | 2024-06-18 |
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CN202211006998.7A Active CN115311938B (en) | 2022-08-22 | 2022-08-22 | Display module |
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CN114885534A (en) * | 2021-02-05 | 2022-08-09 | 深圳富泰宏精密工业有限公司 | Electronic device |
CN113019823A (en) * | 2021-02-26 | 2021-06-25 | 合肥维信诺科技有限公司 | Shading paint coating device and display screen body preparation method |
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