CN109817090B - Display device and method for manufacturing display device - Google Patents
Display device and method for manufacturing display device Download PDFInfo
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- CN109817090B CN109817090B CN201910091065.4A CN201910091065A CN109817090B CN 109817090 B CN109817090 B CN 109817090B CN 201910091065 A CN201910091065 A CN 201910091065A CN 109817090 B CN109817090 B CN 109817090B
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Abstract
The invention discloses a display device and a manufacturing method of the display device, and belongs to the technical field of display. The display device includes: the display panel is provided with a panel opening; the back adhesive is positioned on one surface of the display panel, and back adhesive openings are formed in the back adhesive; a hard ring located in the adhesive backed aperture and an orthographic projection of the hard ring on the display panel is located in the panel aperture. According to the invention, the hard ring is arranged in the back glue opening hole of the back glue, and the orthographic projection of the hard ring on the display panel is positioned in the panel opening hole of the display panel. The precision of the hard ring is higher than that of the back adhesive hole, so that the alignment precision of the back adhesive hole and the display panel hole can be improved, and the size of the display panel hole does not need to be increased. The problem of display device's display effect relatively poor among the correlation technique is solved. The display effect of the display device is improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display device and a method for manufacturing the display device.
Background
A terminal typically includes a display device and a front camera. At present, in order to increase the screen ratio of the terminal, one way is to provide an opening on the display device and to provide a front camera at the opening.
A display device in the related art includes a display panel provided with a panel opening and a back adhesive attached to one side of the display panel (the back adhesive may be used for shielding light). The back adhesive is provided with back adhesive holes corresponding to the holes on the upper panel of the display panel. The camera can be arranged in the opening of the display panel and the back adhesive.
However, due to the fact that the back adhesive material is soft, the accuracy of the back adhesive hole in the back adhesive is low. In order to align the holes of the adhesive tape with the holes of the display panel, the size of the holes of the display panel is usually large, which results in poor display performance of the display device.
Disclosure of Invention
The embodiment of the invention provides a display device and a manufacturing method of the display device, which can solve the problem of poor display effect of the display device in the related art. The technical scheme is as follows:
according to a first aspect of the present application, there is provided a display device including:
the display panel is provided with a panel opening;
the back adhesive is positioned on one surface of the display panel, and back adhesive openings are formed in the back adhesive;
a hard ring located in the adhesive backed aperture and an orthographic projection of the hard ring on the display panel is located in the panel aperture.
Optionally, the hard ring is tubular, and two ends of the tubular hard ring are located on two sides of the display panel respectively.
Optionally, the outer wall of the hard ring is provided with a flexible layer, and the flexible layer is connected with the back adhesive.
Optionally, the back adhesive includes a metal layer, a foam layer and a mesh adhesive layer that are stacked, the mesh adhesive layer is adhered to one surface of the display panel, and the foam layer is connected to the flexible layer.
Optionally, the material of the flexible layer comprises silicone.
Optionally, the material of the hard ring comprises a hard metal.
Optionally, the display device further comprises a transparent cover plate, and the transparent cover plate is located on the other side of the display panel.
Optionally, one surface of the transparent cover plate, which is close to the display panel, is provided with an annular light shielding structure, an orthographic projection of the annular light shielding structure on the display panel covers an edge of the panel opening, and an orthographic projection of an area surrounded by the annular light shielding structure on the display panel is located in the panel opening.
According to a second aspect of the present application, there is provided a method of manufacturing a display device, the method comprising:
providing a hard ring, a back adhesive and a display panel, wherein the back adhesive is provided with a back adhesive opening, and the display panel is provided with a panel opening;
disposing the hard ring in the adhesive backed aperture;
and arranging the back glue provided with the hard ring on one surface of the display panel, wherein the orthographic projection of the hard ring on the display panel is positioned in the panel opening hole.
Optionally, the hard ring is tubular, the outer wall of the hard ring is provided with a flexible layer, the back adhesive comprises a metal layer, a foam layer and a reticulate adhesive layer which are laminated,
the disposing the hard ring in the adhesive backed aperture comprises:
and connecting the foam layer with the flexible layer on the outer wall of the hard ring through a foaming process.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
and arranging a hard ring in the back adhesive hole of the back adhesive, wherein the orthographic projection of the hard ring on the display panel is positioned in the panel hole of the display panel. The precision of the hard ring is higher than that of the back adhesive hole, so that the alignment precision of the back adhesive hole and the display panel hole can be improved, and the size of the display panel hole does not need to be increased. The problem of display device's display effect relatively poor among the correlation technique is solved. The display effect of the display device is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device in the related art;
fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of another display device according to an embodiment of the present invention;
fig. 4 is a schematic structural view of another display device according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for manufacturing a display device according to an embodiment of the invention.
With the above figures, certain embodiments of the invention have been illustrated and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a display device in the related art.
The display device 10 may include a display panel 11 having a panel opening 111, a transparent cover 12 disposed on one side of the display panel 11, and a back adhesive 13 attached to the other side of the display panel 11. The back adhesive 13 may have various functions such as heat dissipation and light shielding. The adhesive 13 is provided with an adhesive opening 131 corresponding to the panel opening 111 of the display panel 11. The camera 30 may be disposed in an opening of the display panel 11 and the back adhesive 13. The transparent cover 12 may further include a light shielding ink 121, and the light shielding ink 121 is used to shield a non-display area near the panel opening 111 of the display panel 11.
The display device 10 can improve the screen ratio of the display device 10 by providing holes for placing cameras on the display panel and the back adhesive. However, since the adhesive 13 is flexible, the dimensional accuracy of the adhesive opening 131 formed in the adhesive 13 by various processes is low (tolerance is about 200 μm). In order to align the adhesive-backed hole 131 with the panel hole 111 of the display panel 11, the size of the panel hole 111 needs to be increased, which not only directly reduces the display effect of the display device, but also increases the size of the light-shielding ink 121, further reducing the display effect of the display device.
Embodiments of the present invention provide a display device and a method for manufacturing the display device, which can solve the problems in the related art.
Fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention. The display device 20 may include:
the display panel 21, the display panel 21 is provided with a panel opening 211.
The back adhesive 22, the back adhesive 22 is located on one side of the display panel 21, and the back adhesive 22 is provided with a back adhesive opening 221.
The hard ring 23, the hard ring 23 is located in the back adhesive hole 221, and the orthographic projection of the hard ring 23 on the display panel 21 is located in the panel hole 211.
In summary, in the display device provided in the embodiments of the present invention, the hard ring is disposed in the back adhesive hole of the back adhesive, and the orthographic projection of the hard ring on the display panel is located in the panel hole of the display panel. The precision of the hard ring is higher than that of the back adhesive hole, so that the alignment precision of the back adhesive hole and the display panel hole can be improved, and the size of the display panel hole does not need to be increased. The problem of display device's display effect relatively poor among the correlation technique is solved. The display effect of the display device is improved.
Fig. 3 is a schematic structural diagram of another display device according to an embodiment of the present invention. The display device 20 is modified in some ways based on the display device shown in fig. 2.
Alternatively, the hard ring 23 is tubular, and two ends of the tubular hard ring 23 are respectively located at two sides of the display panel 21. That is, the tubular hard ring 23 is inserted into the panel opening hole 211, so that a direct collision between an image capturing component (e.g., a camera) disposed in the panel opening hole 211 and the display panel 21 can be avoided, and the display panel and the image capturing component are protected. The tubular hard ring 23 can penetrate the whole panel opening 211, so that light leakage at the panel opening can be avoided (the hard ring 23 can be made of opaque materials).
Among them, the display panel 21 may be a flexible display panel. Such as an Active-matrix organic light-emitting diode (AMOLED) display panel.
Alternatively, the material of the hard ring 23 may comprise various hard metals or alloys, such as iron and steel, etc. The tolerance of the hard ring 23 made of metal or alloy is about 20 microns, and the precision is greatly improved. The hard ring 23 may be a circular ring, a square ring, a triangular ring, etc., and embodiments of the present invention are not limited thereto.
Optionally, the outer wall of the hard ring 23 is provided with a flexible layer 24, and the flexible layer 24 is connected with the back adhesive 22. The flexible layer 24 can further protect the display panel and avoid direct collision of the hard ring 23 with the display panel. In addition, the hard ring is difficult to be directly connected with the gum, so that the flexible layer can be arranged on the outer wall of the hard ring, and the gum is connected with the flexible layer, so that the difficulty in arranging the hard ring is reduced.
Optionally, the inner wall of the rigid ring 23 is also provided with a flexible layer (not shown in fig. 3) for protecting the image acquisition assembly provided in the panel aperture. The image acquisition assembly is prevented from being damaged by collision between the image acquisition assembly and the hard ring 23, and the service life of the image acquisition assembly is prolonged.
Alternatively, the material of the flexible layer 24 may include silicone. Silica gel is a flexible material with strong shock resistance, and can greatly reduce the impact force of the hard ring on the display panel. The flexible layer 24 may be black in color to provide light leakage protection.
Optionally, the back adhesive 22 includes a laminated metal layer 222 (the material of the metal layer may include copper), a foam layer 223 and a mesh layer 224, the mesh layer 224 is adhered to one side of the display panel 21, and the foam layer 223 is connected to the flexible layer 24. Wherein the foam layer 223 may be connected to the flexible layer 24 by a foaming process. The back adhesive 22 may be Super Clean Foam (SCF).
Optionally, the display device 20 further comprises a transparent cover plate 25, and the transparent cover plate 25 is located on the other side (i.e. the side away from the adhesive) of the display panel 21. The transparent cover 25 may be used to protect the display panel 21. The transparent Cover 25 may be a Cover Glass (CG).
Optionally, one side of the transparent cover plate 25 close to the display panel 21 is provided with an annular light shielding structure 26, an orthographic projection of the annular light shielding structure 26 on the display panel 21 covers an edge of the panel opening 211, and an orthographic projection of an area surrounded by the annular light shielding structure 26 on the display panel is located in the panel opening 211. The annular light shielding structure 26 is used for shielding an area where an edge of the opening 211 of the display panel is located, but does not shield a viewing area of the image capturing component (the area may be an area where an orthographic projection of the image capturing component on the transparent cover plate is located), so as to improve the aesthetic degree of the opening area of the panel.
Wherein, the material of the annular light shielding structure 26 may include light shielding ink. The light-shielding ink is also called cover glass ink.
In the display device 20 provided by the embodiment of the present invention, since the size precision of the hard ring is high, the hard ring can be accurately aligned with the panel opening, and thus the panel opening does not need to be enlarged. Therefore, the size of the panel opening on the display panel is reduced, the size of the annular light shielding structure 26 can be reduced, and the aesthetic degree of the display device is improved.
Optionally, the display device 20 further includes a touch panel 27, and the touch panel 27 may be connected to the display panel 21 through a bottom optical Adhesive (BOCA) 271.
Optionally, the display device 20 further includes a Polarizer (POL) 28. The polarizer 28 may be connected to the transparent cover plate 25 by top optical Adhesive (TOCA).
Alternatively, the display panel 21 may include a display area 212 and a non-display area 213. The non-display area 213 surrounds the panel opening 211, and the remaining area is the display area 212.
As shown in fig. 4, which is a schematic structural diagram of the display device provided with the camera 30, the display panel 21 does not directly collide with the camera 30 under the protection of the hard ring 23 and the flexible layer 24 on the outer wall thereof, so that the display panel 21 and the camera 30 are prevented from being damaged.
In summary, in the display device provided in the embodiments of the present invention, the hard ring is disposed in the back adhesive hole of the back adhesive, and the orthographic projection of the hard ring on the display panel is located in the panel hole of the display panel. The precision of the hard ring is higher than that of the back adhesive hole, so that the alignment precision of the back adhesive hole and the display panel hole can be improved, and the size of the display panel hole does not need to be increased. The problem of display device's display effect relatively poor among the correlation technique is solved. The display effect of the display device is improved.
Fig. 5 is a flowchart of a method for manufacturing a display device according to an embodiment of the invention. The method of the display device may be applied to manufacture the display device shown in fig. 2 described above or to manufacture the display device shown in fig. 3 described above. The manufacturing method of the display device comprises the following steps:
Optionally, the hard ring is tubular, the outer wall of the hard ring is provided with a flexible layer, and the back glue comprises a metal layer, a foam layer and a reticulate glue layer which are stacked. This step may include:
and the foam layer is connected with the flexible layer on the outer wall of the hard ring through a foaming process.
Since the hard layer is usually difficult to be directly connected with the back adhesive, the flexible layer can be formed on the outer wall of the hard layer, and then the foam layer in the back adhesive is connected with the flexible layer through a foaming process.
The foam layer can be connected with the flexible layer on the outer wall of the hard ring through a foaming process, and then the metal layer and the reticular rubber layer are attached to two sides of the foam layer to form the back rubber connected with the hard ring.
When the back adhesive provided with the hard ring is connected with the display Panel, the position of the display Panel can be determined according to a Panel Mark (English) on the display Panel, and the position of the back adhesive can be determined according to the hard ring. Therefore, the hard ring can be accurately aligned with the panel opening on the display panel.
In summary, in the manufacturing method of the display device provided in the embodiments of the present invention, the hard ring is disposed in the back adhesive hole of the back adhesive, and the orthographic projection of the hard ring on the display panel is located in the panel hole of the display panel. The precision of the hard ring is higher than that of the back adhesive hole, so that the alignment precision of the back adhesive hole and the display panel hole can be improved, and the size of the display panel hole does not need to be increased. The problem of display device's display effect relatively poor among the correlation technique is solved. The display effect of the display device is improved.
It is noted that in the drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. Also, it will be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or layer or intervening layers may also be present. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or intervening layers or elements may also be present. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer between the two layers or elements, or there can be more than one intermediate layer or element. Like reference numerals refer to like elements throughout.
In the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention is not to be considered as limited to the particular embodiments shown and described, but is to be understood that various modifications, equivalents, improvements and the like can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A display device, characterized in that the display device comprises:
the display panel is provided with a panel opening;
the back adhesive is positioned on one surface of the display panel, back adhesive openings are formed in the back adhesive, the back adhesive comprises a metal layer, a foam layer and a reticulate adhesive layer which are laminated, and the back adhesive is used for shading light and dissipating heat;
a hard ring located in the adhesive backed aperture and an orthographic projection of the hard ring on the display panel is located in the panel aperture, the hard ring being made of a material comprising: opaque hard metal, and the precision of stereoplasm ring is higher than the precision of back of the body trompil.
2. The display device according to claim 1, wherein the rigid ring has a tubular shape, and two ends of the tubular rigid ring are respectively located at two sides of the display panel.
3. The display device according to claim 2, wherein an outer wall of the hard ring is provided with a flexible layer, the flexible layer being connected with the back adhesive.
4. The display device according to claim 3, wherein a mesh adhesive layer included in the back adhesive is attached to one surface of the display panel, and a foam layer included in the back adhesive is connected to the flexible layer.
5. A display device as claimed in claim 3, characterized in that the material of the flexible layer comprises silicone.
6. The display device according to any one of claims 1 to 5, further comprising a transparent cover plate on the other side of the display panel.
7. The display device according to claim 6, wherein a side of the transparent cover plate close to the display panel is provided with a ring-shaped light shielding structure, an orthographic projection of the ring-shaped light shielding structure on the display panel covers an edge of the panel opening, and an orthographic projection of an area surrounded by the ring-shaped light shielding structure on the display panel is located in the panel opening.
8. The display device according to any one of claims 1 to 5, wherein the display panel comprises an active matrix organic light emitting diode AMOLED display panel.
9. A method of manufacturing a display device, the method being for manufacturing a display device according to any one of claims 1 to 8, the method comprising:
providing a hard ring, a back adhesive and a display panel, wherein the back adhesive is provided with a back adhesive opening, and the display panel is provided with a panel opening;
disposing the hard ring in the adhesive backed aperture;
and arranging the back glue provided with the hard ring on one surface of the display panel, wherein the orthographic projection of the hard ring on the display panel is positioned in the panel opening hole.
10. The method according to claim 9, wherein the hard ring is tubular, the outer wall of the hard ring is provided with a flexible layer, the back adhesive comprises a metal layer, a foam layer and a reticulate adhesive layer which are laminated,
the disposing the hard ring in the adhesive backed aperture comprises:
and connecting the foam layer with the flexible layer on the outer wall of the hard ring through a foaming process.
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| CN201910091065.4A CN109817090B (en) | 2019-01-30 | 2019-01-30 | Display device and method for manufacturing display device |
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| CN201910091065.4A CN109817090B (en) | 2019-01-30 | 2019-01-30 | Display device and method for manufacturing display device |
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| CN109817090A CN109817090A (en) | 2019-05-28 |
| CN109817090B true CN109817090B (en) | 2021-12-10 |
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| KR20210046906A (en) * | 2019-10-18 | 2021-04-29 | 삼성디스플레이 주식회사 | Display device |
| CN111145646B (en) * | 2019-12-20 | 2021-11-02 | 武汉华星光电半导体显示技术有限公司 | Flexible display device |
| CN111787771B (en) * | 2020-07-27 | 2023-06-27 | 京东方科技集团股份有限公司 | Radiating assembly and display device |
| CN111986572B (en) * | 2020-08-07 | 2022-04-08 | 武汉华星光电半导体显示技术有限公司 | Foldable display device |
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| CN109817090A (en) | 2019-05-28 |
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