CN116863813A - Cover plate, display module and display device - Google Patents
Cover plate, display module and display device Download PDFInfo
- Publication number
- CN116863813A CN116863813A CN202310409232.1A CN202310409232A CN116863813A CN 116863813 A CN116863813 A CN 116863813A CN 202310409232 A CN202310409232 A CN 202310409232A CN 116863813 A CN116863813 A CN 116863813A
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- Prior art keywords
- layer
- cover plate
- display
- light shielding
- display screen
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- 239000000758 substrate Substances 0.000 claims abstract description 55
- 230000000694 effects Effects 0.000 abstract description 12
- 230000000007 visual effect Effects 0.000 abstract description 5
- 239000011521 glass Substances 0.000 description 19
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000003666 anti-fingerprint Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
Abstract
The application discloses a cover plate, a display module and a display device, wherein the cover plate is used for covering a display screen body layer, the display screen body layer is provided with a display area and a non-display area, and the cover plate comprises: the base layer is provided with a groove, and the projection of the groove on the display screen body layer is positioned in the non-display area; the shading layer is filled in the groove; the projection of the shading layer on the non-display area is continuous and covers at least part of the non-display area. According to the application, the light shielding layer is embedded in the groove of the substrate layer of the cover plate, so that the light shielding visual effect is met, the light shielding layer is effectively prevented from occupying the whole thickness space of the corresponding display module, the generation of attaching bubbles is effectively prevented, the falling risk of the light shielding layer is prevented or reduced, and the good display effect can be realized.
Description
Technical Field
The application relates to the technical field of display panels, in particular to a cover plate, a display module and a display device.
Background
Currently, in order to distinguish between a window area and a non-window area, an edge of the screen is masked, an ink layer is usually printed on an inner surface of a cover plate, and then the cover plate, a screen body layer, a polarizer and the like are adhered together by using an OCA (Optically clear adhesive ).
Because the ink has a certain thickness, the ink inevitably occupies the thickness space of the display screen, and the edge of the ink is very easy to generate non-vanishable bubbles after being attached to the OCA, and the bad bubbles are visible on the light emitting side of the screen, so that the display effect of the screen is affected. In addition, the ink is easy to fall off, so that the problems of poor light leakage of a screen and complete machine glue opening caused by the falling off of the ink exist.
Disclosure of Invention
The application mainly solves the technical problems of providing a cover plate, a display module and a display device, which are used for solving the problems that the ink in the display panel in the prior art occupies the thickness space of a display screen, is easy to generate non-vanishable bubbles to influence the display effect, and causes poor light leakage of the screen and complete machine glue opening after the ink falls off.
In order to solve the technical problems, the application adopts a technical scheme that: there is provided a cover plate for covering a display screen body layer having a display area and a non-display area, wherein the cover plate includes: the base layer is provided with a groove, and the projection of the groove on the display screen body layer is positioned in the non-display area; the shading layer is filled in the groove; the projection of the shading layer on the non-display area is continuous and covers at least part of the non-display area.
Wherein, the opening of the groove is arranged on the first side surface of the matrix layer; one side edge of the first side face is connected with the display screen body layer.
Wherein, the shading layer is parallel to the display screen body layer.
The number of the grooves is at least two, and openings of the at least two grooves are respectively arranged on different sides of the substrate layer.
The number of the grooves is at least two, and openings of the at least two grooves are arranged on the second side surface of the substrate layer; the second side faces the display screen body layer.
The number of the grooves is at least two, and openings of the at least two grooves are all arranged on the third side surface of the substrate layer; wherein the third side faces away from the display screen body layer.
Wherein, at least two grooves are parallel to each other and are arranged at intervals; or, at least two grooves are spaced apart from each other, and the extending directions intersect each other.
Wherein the thickness of the light shielding layer is 18-25 micrometers.
In order to solve the technical problems, the application adopts another technical scheme that: provided is a display module, wherein the display module includes: the base layer, the display screen body layer and the cover plate are sequentially stacked; wherein the cover body is the cover plate according to any one of the above.
In order to solve the technical problems, the application adopts another technical scheme that: the display device comprises a shell and a display module which are connected; the display module is as described above.
The beneficial effects of the application are as follows: compared with the prior art, the cover plate provided by the application is used for covering the display screen body layer, the display screen body layer is provided with the display area and the non-display area, the substrate layer in the cover plate is provided with the groove at the position corresponding to the non-display area, the light shielding layer is filled in the groove, the projection of the light shielding layer on the display screen body layer is continuous, and at least part of the non-display area is covered, so that when the light shielding layer is embedded in the groove of the substrate layer of the cover plate, the cover plate and the light shielding layer are effectively prevented from being bonded to the display screen body layer by adopting the optical transparent adhesive, the thickness drop of the optical transparent adhesive at the edge of the light shielding layer is effectively avoided, the occurrence of bonding bubbles can be effectively prevented, the light shielding layer occupies the whole thickness space of a corresponding display module, the falling-off risk of the light shielding layer is prevented or reduced, and the good display effect can be realized while the light shielding visual effect is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a cross-sectional view of a first embodiment of a cover plate of the present application;
FIG. 2 is a cross-sectional view of a second embodiment of the cover plate of the present application;
FIG. 3 is a cross-sectional view of a third embodiment of the cover plate of the present application;
FIG. 4 is a cross-sectional view of a fourth embodiment of the cover plate of the present application;
FIG. 5 is a cross-sectional view of a fifth embodiment of the cover plate of the present application;
fig. 6 is a cross-sectional view of a sixth embodiment of the cover plate of the present application;
FIG. 7 is a cross-sectional view of a seventh embodiment of the cover plate of the present application;
fig. 8 is a cross-sectional view of an eighth embodiment of the cover plate of the present application;
FIG. 9 is a schematic diagram of a display module according to an embodiment of the application;
fig. 10 is a schematic structural diagram of an embodiment of a display device according to the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a first embodiment of a cover plate of the present application. In this embodiment, the cover plate 10 includes: a base layer 11 and a light shielding layer 12.
The cover plate 10 is specifically configured to cover a display screen layer (not shown) to provide protection for the display screen layer. The display screen body layer is provided with a display area and a non-display area, and the non-display area is specifically corresponding to the edge position of the display screen body layer, so that the non-display area needs to be shaded in order to ensure that the display screen body layer can achieve the effect of integral black when in a screen-off state.
It should be noted that the substrate layer 11 in the cover plate 10 can be manufactured separately to cover the corresponding display panel layer or be directly formed on the display panel layer.
The substrate layer 11 is provided with a groove (not shown), and the projection of the groove on the display screen layer is located in the non-display area, that is, when the substrate layer 11 is disposed on the display screen layer, the substrate layer 11 is provided with a groove at a position corresponding to the non-display area in the display screen layer.
In order to achieve a shading visual effect for the non-display area of the display screen body layer, the recess is in particular also filled with a shading layer 12.
The projection of the light shielding layer 12 in the non-display area of the display screen layer is continuous, and at least part of the non-display area is covered, so that no light leakage gap can be effectively ensured, and a good light shielding effect is realized.
It can be understood that after the light shielding layer 12 is embedded in the groove of the substrate layer 11 of the cover plate 10, when the cover plate 10 and the light shielding layer 12 are adhered to the display screen body layer by adopting the optical transparent adhesive, the optical transparent adhesive has a thickness drop at the edge of the light shielding layer 12 so as to effectively prevent the generation of attaching bubbles, and the light shielding layer 12 occupies the whole thickness space of the corresponding display module, thus preventing or reducing the risk of falling off of the light shielding layer 12, and further realizing better display effect while meeting the light shielding visual effect.
In an embodiment, the opening of the groove in the substrate layer 11 is specifically disposed on the first side 1101 of the substrate layer 11, and one side edge of the first side 1101 is specifically and correspondingly connected to the display screen layer, so that a receiving space is formed in a direction perpendicular to the display screen layer, and when the light shielding layer 12 is filled in the groove, direct contact with the optically transparent adhesive can be effectively avoided, the problem of attaching bubbles is reliably solved, and meanwhile, the possibility of falling off the light shielding layer 12 is also effectively avoided because the light shielding layer 12 is filled in the middle position of the substrate layer 11.
Alternatively, the light shielding layer 12 may be parallel to the display screen layer, or may be disposed at a set acute angle or an obtuse angle corresponding to the display screen layer, which is not limited in the present application.
Alternatively, the substrate layer 11 may be made of any reasonably transparent material, such as toughened glass or organic glass, which is not limited in the present application.
Alternatively, the substrate layer 11 of the cover plate 10 may be specifically 2D glass, i.e. a plain flat glass, without any arc design, all points on the glass lying on the same plane; correspondingly, the first side 1101 of the base layer 11 is perpendicular to the display screen body layer.
Alternatively, the light shielding layer 12 of the cover plate 10 may be any reasonable material layer capable of shielding light, such as ink or resin, which is not limited in the present application.
Alternatively, the cover plate 10 has a thickness of 600 microns or 650 microns.
Optionally, the thickness of the light shielding layer 12 is 18-25 microns.
With continued reference to fig. 2, fig. 2 is a cross-sectional view of a second embodiment of the cover plate of the present application.
In this embodiment, the number of grooves in the substrate layer 21 in the cover 20 is at least two, and openings of the at least two grooves are respectively disposed on different sides of the substrate layer 21, such as any two sides of the first side 2101, the second side 2102 and the third side 2103 of the substrate layer 21, or each side is provided with one or more grooves; and after filling the light shielding layer 22 in each groove, the projection of the light shielding layer 22 on the display screen layer is continuous, that is, the projections of the at least two grooves on the display screen layer are continuous, and the partial overlapping is allowed to exist so as to cover at least part of the non-display area, thereby ensuring that no light leakage gap exists and realizing a better light shielding effect.
Wherein the second side 2102 of the base layer 21 faces toward the display layer and the third side 2103 faces away from the display layer.
Alternatively, at least two grooves in the base layer 21 may be spaced apart from each other, and the extending directions of at least part of the grooves intersect with each other; or, the at least two grooves may be parallel to each other and spaced apart, which is not limited in the present application.
With continued reference to fig. 3, fig. 3 is a cross-sectional view of a third embodiment of the cover plate of the present application.
In an embodiment, the number of the grooves in the substrate layer 31 in the cover plate 30 is at least two, and the openings of the at least two grooves are specifically disposed on the second side 3102 of the substrate layer 31.
The second side 3102 of the substrate layer 31 is specifically a side facing the display screen body layer, so that after the light shielding layer 32 is filled in each groove, an AF (Anti-fingerprint) film may be formed on the second side 3102 of the substrate layer 31, so as to ensure the flatness, friction resistance and waterproof effect of the outer surface of the substrate layer 31, and prevent the light shielding layer 32 from falling off.
Alternatively, at least two grooves in the base layer 31 may be spaced apart from each other, and the directions of extension intersect each other.
It can be understood that, by the above scheme, when the cover plate 30 is attached to the display screen body layer, no air bubbles will be generated, and meanwhile, the light shielding layer 32 will not fall into the product to affect the assembly or performance of the display module; meanwhile, by designing the light shielding layer 32 to be in a space overlapping mode, compared with the whole area grooving filling mode, namely, compared with the cover plate 10 in fig. 1, the exposed area of the light shielding layer 32 and outside air can be effectively reduced, the falling risk of the light shielding layer 32 is further reduced, and meanwhile, the strength of the cover plate 30 in the area is also ensured.
With continued reference to fig. 4, fig. 4 is a cross-sectional view of a fourth embodiment of the cover plate of the present application.
In another embodiment, the substrate layer 41 in the cover 40 is identical to the substrate layer 31 in fig. 3, and at least two grooves in the substrate layer 41 and the corresponding filled light shielding layers 42 thereof may be parallel to each other and spaced apart, which is not limited in the present application.
With continued reference to fig. 5, fig. 5 is a cross-sectional view of a fifth embodiment of the cover plate of the present application.
In an embodiment, the number of grooves in the substrate layer 51 in the cover 50 is at least two, and the openings of the at least two grooves are specifically disposed on the third side 5103 of the substrate layer 51.
The third side 5103 of the base layer 51 is specifically a side facing away from the display screen body layer, so that after the light shielding layer 52 is filled in each groove, a layer of AF film can be formed on the third side 5103 of the base layer 51, so as to ensure the smoothness, friction resistance and waterproof effect of the outer surface of the base layer 51, and prevent the light shielding layer 52 from falling off.
Alternatively, at least two grooves in the base layer 51 may be specifically disposed parallel to each other and at a distance from each other; or, the at least two grooves may be spaced apart from each other, and the extending directions thereof intersect with each other, which is not limited by the present application.
With continued reference to fig. 6, fig. 6 is a cross-sectional view of a sixth embodiment of the cover plate of the present application.
It will be appreciated that in another embodiment, the substrate layer 61 in the cover plate 60 may be 2.5D glass or 3D glass, wherein the 2.5D glass is a glass with a planar middle and an arc-shaped edge, and the edge is curved with respect to the 2D glass, that is, the edge is curved on the basis of the planar glass; and 3D glass specifically refers to a type of glass that uses an arcuate design, both in the middle and at the edges.
As shown in fig. 6, fig. 6 is a cross-sectional view of the arc edge of the cover plate 60, and the substrate layer 61 of the cover plate 60 is identical to the substrate layer 11 in fig. 1, and the openings of the grooves in the substrate layer 61 are also disposed on the first side 6101 of the substrate layer 61, so that the light shielding layer 62 and the display screen layer are parallel to each other; in addition, the base layer 61 and the light shielding layer 62 at the corresponding straight edge positions of the cover 60 are respectively identical to the base layer 11 and the light shielding layer 12 in fig. 1, and detailed descriptions thereof are omitted herein.
It should be noted that, for the hollowed portion of the substrate layer 61, that is, the groove, the 2D glass or the 2.5D glass or the 3D glass with smaller radian can be directly formed by CNC (Computer numerical control, computer numerical control machine) or laser cutting, while for the 3D glass with large radian, the light shielding layer 62 needs to be directly formed in the middle of the substrate layer 61 in the molten state, and then is thermally bent together, so as to achieve the effect of forming the light shielding layer 62 in the middle of the substrate layer 61, and meanwhile, the bonding force between the substrate layer 61 and the light shielding layer 62 can be improved.
With continued reference to fig. 7, fig. 7 is a cross-sectional view of a seventh embodiment of the cover plate of the present application.
Similarly, in the present embodiment, the substrate layer 71 of the cover plate 70 is also 2.5D glass or 3D glass, and the substrate layer 71 of the cover plate 70 is identical to the substrate layer 41 in fig. 4, and the number of grooves in the substrate layer 71 is at least two, and the openings of the at least two grooves are all disposed on the second side 7102 of the substrate layer 71, so that the corresponding at least two light shielding layers 72 are parallel to each other and are disposed at intervals, or are spaced apart from each other and at least part of the extending directions of the light shielding layers 72 intersect each other; in addition, the base layer 71 and the light shielding layer 72 at the positions corresponding to the straight edges of the cover plate 70 are respectively identical to the base layer 41 and the light shielding layer 42 in fig. 4, and detailed descriptions thereof are omitted herein.
With continued reference to fig. 8, fig. 8 is a cross-sectional view of an eighth embodiment of the cover plate of the present application.
Similarly, in the present embodiment, the substrate layer 81 of the cover plate 80 is also 2.5D glass or 3D glass, and the substrate layer 81 of the cover plate 80 is identical to the substrate layer 51 in fig. 5, and the number of grooves in the substrate layer 81 is at least two, and the openings of the at least two grooves are all disposed on the third side 8103 of the substrate layer 81, so that the corresponding at least two light shielding layers 82 are disposed parallel to each other and at a distance from each other, or are spaced from each other and at least part of the extending directions of the light shielding layers 82 intersect each other; in addition, the base layer 81 and the light shielding layer 82 at the positions corresponding to the straight edges of the cover 80 are respectively identical to the base layer 51 and the light shielding layer 52 in fig. 5, and detailed descriptions thereof are omitted herein.
The application also provides a display module, referring to fig. 9, fig. 9 is a schematic structural diagram of an embodiment of the display module of the application. Wherein, the display module 90 specifically includes: the base layer 91, the display panel layer 92, and the cover plate 93 are laminated in this order.
The cover plate 93 described in this embodiment is any of the cover plates 10, 20, 30, 40, 50, 60, 70, or 80 described in any of the above embodiments, and will not be described herein.
In an embodiment, the substrate layer 91 further includes a support (not shown), a support buffer film (not shown), a polyimide film (not shown), and a thin film transistor layer (not shown) sequentially stacked, and the display layer 92 is specifically disposed on the thin film transistor layer.
The application also provides a display device, referring to fig. 10, fig. 10 is a schematic structural diagram of an embodiment of the display device of the application. The display device 100 includes a housing 101 and a display module 102 connected to each other.
The display module 102 described in this embodiment is the display module 90 described in any one of the above embodiments, and will not be described herein.
Alternatively, the display device 100 may be any reasonable display such as a smart phone, a tablet computer, or a vehicle-mounted display, which is not limited in the present application.
Compared with the prior art, the cover plate provided by the application is used for covering the display screen body layer, the display screen body layer is provided with the display area and the non-display area, the substrate layer in the cover plate is provided with the groove at the position corresponding to the non-display area, the light shielding layer is filled in the groove, the projection of the light shielding layer on the display screen body layer is continuous, and at least part of the non-display area is covered, so that when the light shielding layer is embedded in the groove of the substrate layer of the cover plate, the cover plate and the light shielding layer are effectively prevented from being bonded to the display screen body layer by adopting the optical transparent adhesive, the thickness drop of the optical transparent adhesive at the edge of the light shielding layer is effectively avoided, the occurrence of bonding bubbles can be effectively prevented, the light shielding layer occupies the whole thickness space of a corresponding display module, the falling-off risk of the light shielding layer is prevented or reduced, and the good display effect can be realized while the light shielding visual effect is met.
The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the present application.
Claims (10)
1. A cover plate for covering a display screen body layer, the display screen body layer having a display area and a non-display area, the cover plate comprising:
the base layer is provided with a groove, and the projection of the groove on the display screen body layer is positioned in the non-display area;
the shading layer is filled in the groove; the projection of the shading layer on the non-display area is continuous and covers at least part of the non-display area.
2. The cover plate of claim 1, wherein the cover plate is further configured to,
the opening of the groove is arranged on the first side surface of the substrate layer; and one side edge of the first side face is connected with the display screen body layer.
3. The cover plate of claim 2, wherein,
the shading layer is parallel to the display screen body layer.
4. The cover plate of claim 1, wherein the cover plate is further configured to,
the number of the grooves is at least two, and openings of the at least two grooves are respectively arranged on different sides of the substrate layer.
5. The cover plate of claim 1, wherein the cover plate is further configured to,
the number of the grooves is at least two, and openings of at least two grooves are arranged on the second side surface of the substrate layer; wherein the second side faces the display screen body layer.
6. The cover plate of claim 1, wherein the cover plate is further configured to,
the number of the grooves is at least two, and openings of at least two grooves are arranged on the third side surface of the substrate layer; wherein the third side faces away from the display screen body layer.
7. The cover sheet according to claim 5 or 6, wherein,
at least two grooves are parallel to each other and are arranged at intervals; or, at least two of the grooves are spaced apart from each other, and the extending directions intersect each other.
8. The cover sheet according to any one of claims 1 to 6, wherein,
the thickness of the shading layer is 18-25 microns.
9. A display module, characterized in that the display module comprises: the base layer, the display screen body layer and the cover plate are sequentially stacked;
wherein the cover plate is as claimed in any one of claims 1 to 8.
10. The display device is characterized by comprising a shell and a display module which are connected;
wherein the display module is as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310409232.1A CN116863813A (en) | 2023-04-17 | 2023-04-17 | Cover plate, display module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310409232.1A CN116863813A (en) | 2023-04-17 | 2023-04-17 | Cover plate, display module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116863813A true CN116863813A (en) | 2023-10-10 |
Family
ID=88222305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310409232.1A Pending CN116863813A (en) | 2023-04-17 | 2023-04-17 | Cover plate, display module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116863813A (en) |
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2023
- 2023-04-17 CN CN202310409232.1A patent/CN116863813A/en active Pending
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