CN210323939U - Display panel and electronic device - Google Patents
Display panel and electronic device Download PDFInfo
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- CN210323939U CN210323939U CN201921128843.4U CN201921128843U CN210323939U CN 210323939 U CN210323939 U CN 210323939U CN 201921128843 U CN201921128843 U CN 201921128843U CN 210323939 U CN210323939 U CN 210323939U
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- display screen
- fingerprint identification
- display panel
- reinforcing
- adhesive
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Abstract
The application relates to a display panel and electronic equipment, display panel includes display screen and fingerprint identification subassembly, and display panel still includes at least one reinforcement that is located between display screen and the fingerprint identification subassembly. The strength of the reinforcing member is greater than that of the display screen. Bonding glue is arranged between the reinforcing piece and the display screen and between the reinforcing piece and the fingerprint identification assembly. This application display panel, the intensity of reinforcement is greater than the intensity of display screen. Therefore, after the reinforcing piece is added between the display screen and the fingerprint identification assembly, the strength of the display screen can be effectively compensated through the reinforcing piece, and then the dragging deformation of the display screen caused by the edge warping of the fingerprint identification assembly is reduced.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel and an electronic device.
Background
With the development of the display industry, a fingerprint identification technology appears, and electronic devices (such as mobile phones and the like) with a fingerprint identification function are more and more widely applied. The display panel of the electronic device comprises a fingerprint identification component and a display screen. There are various fingerprint identification methods of the fingerprint identification component. At present, the most applied fingerprint identification mode in the market is optical fingerprint identification. Meanwhile, an ultrasonic underscreen fingerprint identification mode is also developed.
Fingerprint identification components often suffer from edge warping problems. Therefore, when the fingerprint identification subassembly was pasted on flexible display screen, the display screen warp can be dragged to the bending stress between fingerprint identification subassembly and the laminating material all around, leads to appearing fingerprint identification subassembly's profile seal and fold on the display screen, and then influences image outward appearance visual effect.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing, it is desirable to provide a display panel and an electronic device capable of preventing the display screen from being pulled and deformed due to the edge warpage of the fingerprint identification module.
A display panel comprises a display screen and a fingerprint identification assembly which are assembled together, and further comprises at least one reinforcing piece located between the display screen and the fingerprint identification assembly, wherein the strength of the reinforcing piece is larger than that of the display screen, and adhesive glue is arranged between the reinforcing piece and the display screen and between the reinforcing piece and the fingerprint identification assembly.
In one embodiment, the orthographic projection of the fingerprint identification component on the display screen is within the orthographic projection of the stiffener on the display screen.
In one embodiment, the number of the reinforcing members is one, and the thickness of the reinforcing members is 80 to 200 μm.
In one of the embodiments, the first and second electrodes are,
setting a direction pointing to the fingerprint identification component from the display screen as a first direction, setting a direction perpendicular to the first direction as a second direction, and setting the number of the reinforcing members as a plurality,
the reinforcing elements are arranged in a plurality of rows in the first direction, with adhesive between the rows of reinforcing elements, and/or,
the reinforcing members are arranged in a plurality of rows in the second direction, and adhesive is provided between the reinforcing members in each row.
In one embodiment, the material of the stiffener is ceramic, sapphire, glass, aluminum alloy or stainless steel sheet.
In one embodiment, the thickness of the adhesive between the reinforcing member and the display screen and the thickness of the adhesive between the reinforcing member and the fingerprint identification assembly are both 8-20 μm.
In one embodiment, the adhesive glue is acrylic glue.
In one embodiment, the fingerprint identification component is an ultrasonic fingerprint identification component and comprises a TFT substrate, a piezoelectric layer, an electrode layer and a protective layer which are sequentially stacked, and the reinforcing part is located between the display screen and the TFT substrate.
In one embodiment, the display panel further includes a flexible circuit board bonded to the TFT substrate.
An electronic device comprising the display panel of any of the above.
Above-mentioned display panel, the intensity of reinforcement is greater than the intensity of display screen. Therefore, after the reinforcing piece is added between the display screen and the fingerprint identification assembly, the strength of the display screen can be effectively compensated through the reinforcing piece, and then the dragging deformation of the display screen caused by the edge warping of the fingerprint identification assembly is reduced.
Drawings
Fig. 1 to 3 are schematic views of display panels in different embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, an electronic device including a display panel is provided. The electronic equipment can be a mobile phone, a tablet computer, a computer display and the like.
Referring to fig. 1, the display panel includes a display screen 100 and a fingerprint recognition assembly 200 assembled together. The display screen 100 is used for displaying a screen. The display mode may be an organic light emitting display mode, and may also be other types of display modes, such as a liquid crystal display mode. The fingerprinting component 200 is used for fingerprinting.
When the fingerprint recognition module 200 is an ultrasonic fingerprint recognition module, the fingerprint recognition mode is an ultrasonic fingerprint recognition mode. At this time, the fingerprint recognition assembly 200 includes a TFT substrate 210, a piezoelectric layer 220, an electrode layer 230, and a protective layer 240, which are sequentially stacked.
The TFT substrate 210 includes various transistors, switches, and other circuits, and is configured to transmit an electrical signal to the piezoelectric layer 220 and emit an ultrasonic signal, where the ultrasonic signal is reflected back by a finger, and the TFT substrate can also receive an electrical signal converted from the ultrasonic signal at any position. The piezoelectric layer 220 may be a laminated polymer layer capable of converting an electric signal and an ultrasonic signal to each other, that is, transmitting and receiving ultrasonic waves. The electrode layer 230 and the TFT substrate 210 form a voltage applied to the surface of the piezoelectric layer 220, so that the piezoelectric layer 220 can activate the function of converting the electrical signal and the ultrasonic signal. The protective layer 240 is an insulating layer, which can protect the electrode layer 230.
Of course, the fingerprint identification module 200 may not be an ultrasonic fingerprint identification module, and the fingerprint identification mode may also be other types of fingerprint identification modes, which is not limited in this embodiment.
In this embodiment, the display panel further comprises at least one stiffener 300 between the display 100 and the fingerprint recognition assembly 200. The strength of the reinforcing member 300 is greater than that of the display screen 100. "strength" herein refers to a mechanical property against bending deformation.
The adhesive 400 is disposed between the stiffener 300 and the display 100 and between the stiffener 300 and the fingerprint recognition assembly 200, so as to bond the stiffener 300 between the display 100 and the fingerprint recognition assembly 200. The adhesive 400 may be an acrylic adhesive, specifically, may be formed after the adhesive is cured, or may be a solid adhesive, which is not limited in this application.
When the fingerprint recognition device 200 is an ultrasonic fingerprint recognition device, the stiffener 300 is located between the display screen 100 and the TFT substrate 210. The reinforcing member 300 and the TFT substrate 210 have an adhesive 400 therebetween.
In order to securely bond the reinforcing member 300 between the display panel 100 and the fingerprint recognition assembly 200, the thickness of the adhesive 400 between the reinforcing member 300 and the display panel 100 and the thickness of the adhesive 400 between the reinforcing member 300 and the fingerprint recognition assembly 200 may be set to be 8 μm to 20 μm. Of course, the thickness of the adhesive 400 may be set to other values according to actual requirements, for example, the thickness may be 10 μm, 12 μm, 14 μm, 16 μm, 18 μm, and so on.
In this embodiment, the strength of the reinforcing member 300 is greater than that of the display screen 100. Therefore, after the reinforcing member 300 is added between the display screen 100 and the fingerprint identification device 200, the strength of the display screen 100 can be effectively compensated by the reinforcing member 300, thereby reducing the pulling deformation of the display screen 100 caused by the edge warping of the fingerprint identification device 200.
During the assembly of the display panel, the stiffener 300 may be attached to the display panel 100 as a substrate by using the adhesive 400. The fingerprint identification assembly 200 is then attached to the stiffener 300 of the substrate using the adhesive 400. The material of the reinforcing member 300 may be ceramic, sapphire, glass, aluminum alloy, or stainless steel sheet, which has high strength. For example, when the material of the stiffener 300 is ceramic (such as zirconia ceramic), the ceramic material is hard and resists deformation.
In one embodiment, the orthographic projection of the fingerprint identification component 200 on the display screen 100 is positioned within the orthographic projection of the stiffener 300 on the display screen 100. At this time, the orthographic projection of the reinforcing member 300 surrounds the edge of the orthographic projection of the fingerprint identification assembly 200, so that the influence of the warping of the edge of the fingerprint identification assembly 200 on the display screen 100 can be better prevented, and the outline print of the fingerprint identification assembly on the display screen can be better prevented.
In other embodiments, the orthographic projection of the fingerprint identification assembly 200 on the display screen 100 may not be completely within the orthographic projection of the stiffener 300 on the display screen 100, which is not limited in this application.
In one embodiment, the number of stiffeners 300 is one. In this case, the assembly process of the display panel is simple. In this case, the thickness of the reinforcing member may be set to 80 μm to 200 μm, and the warping of the reinforcing member 300 may be reduced (for example, to 5 μm or less), thereby effectively reinforcing the strength of the display panel 100.
Of course, the number of the reinforcing members 300 may be plural, and the direction from the display 100 to the fingerprint recognition device 200 is set as a first direction, and the direction perpendicular to the first direction is set as a second direction.
When the number of the reinforcing members 300 is plural, referring to fig. 2, the plural reinforcing members 300 may be arranged in plural rows in the first direction, and the reinforcing members 300 of each row may be bonded by an adhesive. Alternatively, when the number of the reinforcing members 300 is plural, referring to fig. 3, the reinforcing members 300 may be arranged in plural rows in the second direction, and the reinforcing members 300 may have adhesive between the rows. Alternatively, when the number of the reinforcing members 300 is plural, the reinforcing members 300 may be arranged in other manners, and the present application is not limited thereto.
In the embodiment of the present application, the shape of the stiffener 300 is not limited, and may be rectangular, square, or circular.
In addition, the display panel may further include a flexible circuit board 500 and a cover glass 600. The flexible circuit board 400 may be bonded to the fingerprint recognition assembly 200 to provide a signal thereto. When the fingerprint recognition assembly 200 is an ultrasonic fingerprint recognition assembly, the flexible circuit board 500 may be specifically bonded to the TFT substrate 210. The cover glass 600 may have a thickness of 0.4mm to 0.8 mm. The thickness of the display screen 100 may be 300 μm to 600 μm.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A display panel comprises a display screen and a fingerprint identification component which are assembled together, and is characterized by further comprising at least one reinforcing piece located between the display screen and the fingerprint identification component, wherein the strength of the reinforcing piece is larger than that of the display screen, and adhesive glue is arranged between the reinforcing piece and the display screen and between the reinforcing piece and the fingerprint identification component.
2. The display panel of claim 1, wherein an orthographic projection of the fingerprint identification component on the display screen is within an orthographic projection of the stiffener on the display screen.
3. The display panel according to claim 1 or 2, wherein the number of the reinforcing members is one, and the thickness of the reinforcing members is 80 μm to 200 μm.
4. The display panel according to claim 1,
setting a direction pointing to the fingerprint identification component from the display screen as a first direction, setting a direction perpendicular to the first direction as a second direction, and setting the number of the reinforcing members as a plurality,
the reinforcing members are arranged in a plurality of rows in the first direction, adhesive is provided between the reinforcing members in each row,
and/or the presence of a gas in the gas,
the reinforcing members are arranged in a plurality of rows in the second direction, and adhesive is provided between the reinforcing members in each row.
5. The display panel according to claim 1 or 2, wherein the material of the stiffener is one or more of ceramic, sapphire, glass, aluminum alloy, or stainless steel sheet.
6. The display panel according to claim 1 or 2, wherein the thickness of the adhesive between the reinforcing member and the display screen and the thickness of the adhesive between the reinforcing member and the fingerprint recognition assembly are both 8 μm to 20 μm.
7. The display panel according to claim 1, wherein the adhesive glue is an acrylic glue.
8. The display panel according to claim 1, wherein the fingerprint identification component is an ultrasonic fingerprint identification component and comprises a TFT substrate, a piezoelectric layer, an electrode layer, and a protective layer, which are stacked in sequence, and the reinforcement is located between the display screen and the TFT substrate.
9. The display panel of claim 8, further comprising a flexible circuit board bonded to the TFT substrate.
10. An electronic device characterized by comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921128843.4U CN210323939U (en) | 2019-07-18 | 2019-07-18 | Display panel and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921128843.4U CN210323939U (en) | 2019-07-18 | 2019-07-18 | Display panel and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210323939U true CN210323939U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921128843.4U Expired - Fee Related CN210323939U (en) | 2019-07-18 | 2019-07-18 | Display panel and electronic device |
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| CN (1) | CN210323939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112883872A (en) * | 2021-02-22 | 2021-06-01 | 业泓科技(成都)有限公司 | Identify sensing structure, fingerprint identification module and terminal |
-
2019
- 2019-07-18 CN CN201921128843.4U patent/CN210323939U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112883872A (en) * | 2021-02-22 | 2021-06-01 | 业泓科技(成都)有限公司 | Identify sensing structure, fingerprint identification module and terminal |
| CN112883872B (en) * | 2021-02-22 | 2023-11-07 | 业泓科技(成都)有限公司 | Identification sensing structure, fingerprint identification module and terminal |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 330000 east of Xueyuan 6th Road, south of Tianxiang Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: OFilm Microelectronics Technology Co.,Ltd. Address before: 330029 No. 1189 Jingdong Avenue, Nanchang high tech Zone, Jiangxi Patentee before: NANCHANG OFILM BIO-IDENTIFICATION TECHNOLOGY Co.,Ltd. Address after: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: Jiangxi OMS Microelectronics Co.,Ltd. Address before: 330000 east of Xueyuan 6th Road, south of Tianxiang Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee before: OFilm Microelectronics Technology Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200414 |