WO2020038129A1

WO2020038129A1 - Fingerprint recognition module assembly, screen, and electronic device

Info

Publication number: WO2020038129A1
Application number: PCT/CN2019/094596
Authority: WO
Inventors: 陈明仁; 黄茂昭
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-08-20
Filing date: 2019-07-03
Publication date: 2020-02-27
Also published as: CN208691302U

Abstract

A fingerprint recognition module assembly, a screen, and an electronic device. The fingerprint recognition module assembly (100) is used for being disposed on a display screen of the electronic device (10) in a covering manner, the fingerprint recognition module assembly (100) comprises a first transparent plate (110), a second transparent plate (120), and a fingerprint recognition module (140), the first transparent plate (110) is disposed on the second transparent plate (120) in a stacking manner, the first transparent plate (110) and the second transparent plate (120) are bonded by means of a transparent adhesive layer, and the fingerprint recognition module (140) is located between the first transparent plate (110) and the second transparent plate (120).

Description

Fingerprint recognition module assembly, screen and electronic device

Technical field

The present application relates to the technical field of electronic devices, and in particular, to a fingerprint identification module assembly, a screen, and an electronic device.

Background technique

When the plate-like structure of glass or other materials is combined with the fingerprint recognition module, it is generally necessary to open a hole in the plate-like structure and place the fingerprint recognition module in the hole, thereby destroying the integrity of the plate-like structure.

At present, the screen fingerprint recognition module assembly of electronic devices such as mobile phones in the industry uses a single layer of glass. The front fingerprint recognition module is attached to the glass of the fingerprint recognition module assembly through a back adhesive. This setting method requires the fingerprint recognition module. A through hole is opened in the group assembly glass, thereby destroying the integrity of the screen fingerprint recognition module assembly.

Summary of the Invention

Based on this, it is necessary to provide a fingerprint recognition module assembly, a screen, and an electronic device.

A fingerprint identification module assembly for covering an electronic device display screen includes a first transparent plate, a second transparent plate, and a fingerprint identification module, and the first transparent plate is stacked on the second A transparent plate, the first transparent plate and the second transparent plate are bonded by a transparent adhesive layer, and the fingerprint recognition module is located between the first transparent plate and the second transparent plate.

A screen includes a display screen and a fingerprint recognition module assembly, the fingerprint recognition module assembly covers the display screen, and the fingerprint recognition module assembly includes a first transparent plate, a second transparent plate, and a fingerprint recognition module. Group, the first transparent plate and the second transparent plate are bonded by a transparent adhesive layer, and the fingerprint recognition module is located between the first transparent plate and the second transparent plate.

An electronic device includes the screen.

A fingerprint identification module assembly includes a first transparent plate, a second transparent plate, and a fingerprint identification module. The first transparent plate and the second transparent plate are stacked, and the fingerprint identification module is located in the fingerprint identification module. Between a first transparent plate and the second transparent plate.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present application or the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely These are some embodiments of the present application. For those of ordinary skill in the art, without any creative effort, drawings of other embodiments can be obtained according to these drawings.

FIG. 1 is a three-dimensional schematic diagram of an electronic device according to an embodiment; FIG.

2 is a front view of a fingerprint recognition module assembly of a screen in an embodiment of the electronic device shown in FIG. 1;

3 is an exploded view of the fingerprint identification module assembly shown in FIG. 2;

4 is a three-dimensional schematic diagram of the fingerprint identification module in FIG. 3;

5 is an enlarged schematic view of an embodiment of the structure of part B in FIG. 3;

6 is an enlarged schematic view of another embodiment of the structure of part B in FIG. 3;

7 is a schematic A-A sectional view of the fingerprint recognition module assembly shown in FIG. 2;

FIG. 8 is an enlarged schematic view of the structure of part C in FIG. 7; FIG.

FIG. 9 is an enlarged schematic view of a portion D in FIG. 7; FIG.

10 is a front view of a fingerprint recognition module assembly of a screen in another embodiment of the electronic device shown in FIG. 1;

FIG. 11 is a front view of a fingerprint recognition module assembly of a screen in still another embodiment of the electronic device shown in FIG. 1.

detailed description

In order to facilitate understanding of the present application, the present application will be described more fully with reference to the related drawings. The drawings show the preferred embodiments of the present application. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and comprehensive understanding of the disclosure of this application.

As used herein, a "terminal device" refers to a device capable of receiving and / or transmitting communication signals, including but not limited to being connected via any one or more of the following connection methods:

(1) Connection via wired lines, such as public switched telephone networks (PSTN), digital subscriber lines (DSL), digital cables, and direct cable connections

(2) Via a wireless interface method, such as a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, and an AM-FM broadcast transmitter.

A terminal device configured to communicate through a wireless interface may be referred to as a “mobile terminal”. Examples of mobile terminals include, but are not limited to, the following electronic devices:

(1) Satellite phone or cellular phone;

(2) Personal Communication System (PCS) terminals that can combine cellular radiotelephones with data processing, facsimile, and data communication capabilities;

(3) Radiotelephone, pager, Internet / Intranet access, Web browser, memo pad, calendar, Personal Digital Assistant (PDA) equipped with a Global Positioning System (GPS) receiver;

(4) conventional laptop and / or palm receivers;

(5) Conventional laptop and / or palm-type radiotelephone transceivers and the like.

As shown in FIG. 1 and FIG. 2, in an embodiment, an electronic device 10 is provided, and the electronic device 10 may be a device such as a mobile phone. The electronic device 10 includes a screen 20 including a fingerprint recognition module assembly 100 and a display screen. The display screen includes a display layer. The display layer is used to implement the display function of the screen 20. The fingerprint recognition The module assembly 100 is used to protect the display layer. In another embodiment, the display screen includes a display layer and a touch layer, and the touch layer is used to implement a touch function of the screen, which is convenient for a user to operate the electronic device 10.

In one embodiment, the screen 20 is used to display information and can provide an operation interface for the user. In an embodiment, the screen 20 uses an LCD (Liquid Crystal Display) screen for displaying information. The LCD screen may be a TFT (Thin Film Transistor) screen or an IPS (In-Plane Switching) screen. Or SLCD (Splice Liquid Liquid Crystal Display) screen. In another embodiment, the screen 20 uses an OLED (Organic Light-Emitting Diode) screen for displaying information. The OLED screen may be an AMOLED (Active Matrix Organic Light Emitting Diode), an active matrix organic light emitting diode. ) Screen or Super AMOLED (Super Active Matrix Organic Light Emitting Diode) screen or Super AMOLED Plus (Super Active Matrix Organic Light Emitting Diode Plus Plus) screen.

As shown in FIG. 2, the screen 20 in a lit state includes a displayable area 21, a black border area 22 surrounding the displayable area 21, and a non-display area 23 surrounding the black border area 22. Among them, the displayable area is a portion where fonts and pictures can be displayed, and the black border area 22 is located on the outer periphery of the displayable area 21, that is, the black border portion of the screen. The non-display area 23 is located on the outer periphery of the black border area 22. The non-display area 23 is an opaque area and has no display function. A part of the fingerprint identification module assembly 100 is located within the range of the displayable area 21, a portion is located within the range of the black border area 22, and the rest is located within the range of the non-display area 23.

As shown in FIGS. 2 and 3, in one embodiment, the fingerprint identification module assembly 100 includes a first transparent plate 110, a second transparent plate 120, and a fingerprint identification module 140. The first transparent plate 110 and the second transparent plate 120 are stacked. In one embodiment, the first transparent plate 110 and the second transparent plate 120 are both transparent glass plates. The first transparent plate 110 and the second transparent plate 120 are bonded by a transparent adhesive layer, and the transparent adhesive layer does not affect the display effect of the screen.

As shown in FIG. 2 and FIG. 3, in an embodiment, the transparent adhesive layer is an OCA adhesive layer 130, and the OCA adhesive layer 130 includes a first portion 131 and a second portion 132 connected to each other. The first portion 131 is adhered between the first transparent plate 110 and the second transparent plate 120, and the second portion 132 is adhered to the first transparent plate 110 and the fingerprint recognition module 140. And / or the second portion 132 is adhered between the second transparent plate and the fingerprint identification module 140. A thickness difference exists between the first portion 131 and the second portion 132, and the thickness difference forms the sink groove 133. In an embodiment, the second portion 132 passes through an edge of the first portion 131. It can be understood that the sink groove 133 passes through an edge of the OCA adhesive layer 130. In another embodiment, the first portion 131 surrounds the second portion 132. It can be understood that the sink 133 is located in the OCA adhesive layer 130 and is at a distance from the edge of the OCA adhesive layer 130. . The specific position of the sink 133 can be determined according to the actual application, and is not specifically limited herein.

As shown in FIG. 3 to FIG. 6, in an embodiment, the fingerprint identification module 140 is located in the sink 133, and the fingerprint identification module 140 includes at least one fingerprint sensor for identifying an electronic device 10. The fingerprint of the user is convenient for unlocking and can prevent people other than the user from opening the electronic device 10. The fingerprint identification module 140 may be a circular structure or a track-shaped structure. The runway-shaped structure can be understood as a square structure with smooth transition of four corners. The sum of the thickness of the fingerprint recognition module 140 and the thickness of the second portion 132 is equal to the thickness of the first portion 131. The fingerprint recognition module 140 fills the sink 133. Specifically, the fingerprint identification module 140 is a track-shaped structure, and includes a first surface 141, a second surface, and a side peripheral surface. The first surface 141 and the second surface are disposed opposite to each other, and the side peripheral surface is connected to Between the first surface 141 and the second surface. The side peripheral surface includes a first side surface 142, a second side surface 143, a third side surface 144, and a fourth side surface 145. The first side surface 142 and the third side surface 144 are disposed opposite to each other, the second side surface 143 and the fourth side surface 145 are disposed opposite to each other, and the second side surface 143 is connected to the first side surface 142 and the third side surface 144. Meanwhile, the fourth side surface 145 is connected between the first side surface 142 and the third side surface 144. The first side surface 142 is located on a side of the fingerprint identification module 140 close to the first portion 131, and the third side surface 144 is located on a side of the fingerprint identification module 140 remote from the first portion 131.

As shown in FIG. 5, in an embodiment, the opening of the sink 133 faces the first transparent plate 110, and the depth of the sink 133 is the same as the thickness of the fingerprint recognition module 140. The identification module 140 may be placed inside the sink 133 and between the second portion 132 and the first transparent plate 110. The second portion 132 adheres the fingerprint identification module 140 to the second transparent plate 120 to prevent the fingerprint identification module 140 from falling off the fingerprint identification module assembly 100. The first surface 141 is flush with the surface of the first portion 131 facing the first transparent plate 110, and the first surface 141 and the first transparent plate 110 are bonded together. The second surface is attached to the second portion 132. The first side surface 142, the second side surface 143, and the fourth side surface 145 are attached to the side wall of the sink groove 133. It can be understood that the fingerprint recognition module 140 is fully matched with the sink 133, and when the fingerprint recognition module 140 is located in the sink 133, it forms a completed runway shape with the OCA adhesive layer 130 The structure is the same as that of the first transparent plate 110 and the second transparent plate 120.

As shown in FIG. 6, in another embodiment, the opening of the sink 133 faces the second transparent plate 120, and the depth of the sink 133 is the same as the thickness of the fingerprint recognition module 140. The fingerprint recognition module 140 may be placed inside the sink 133 and between the second portion 132 and the second transparent plate 120. The second portion 132 adheres the fingerprint recognition module 140 to the first transparent plate 110 to prevent the fingerprint recognition module 140 from falling off the fingerprint recognition module assembly 100. The second surface is flush with the surface of the first portion 131 facing the second transparent plate 120, and the second surface is abutted with the second transparent plate 120. The first surface 141 is attached to the second portion 132. The first side surface 142, the second side surface 143, and the fourth side surface 145 are attached to the side wall of the sink groove 133.

In another embodiment, the opening of the sink groove 133 faces the edge of the OCA adhesive layer 130, the second portion 132 includes two transparent OCA adhesive layers disposed opposite each other, the fingerprint identification module 140 and the first A transparent plate 110 and a second transparent plate 120 are respectively bonded by two transparent OCA adhesive layers.

As shown in FIG. 3, the sink 133 is located at the bottom of the fingerprint identification module assembly 100. The bottom of the fingerprint recognition module assembly 100 can be understood as when the user stands on the ground and normally uses the electronic device 10, the fonts and patterns stand upright, and the part of the fingerprint recognition module assembly 100 facing the ground is the fingerprint recognition module The bottom of the assembly 100. The sink groove 133 passes through an edge of the OCA adhesive layer 130 located on the bottom of the fingerprint identification module assembly 100.

As shown in FIGS. 7 to 9, in an embodiment, the screen 20 includes a display screen, and the fingerprint identification module 140 and the display screen are connected through a flexible circuit board 146. The flexible printed circuit board (Flexible Printed Circuit Board, abbreviated as FPC) is also called a flexible printed circuit board, or a flexible printed circuit board. According to the definition of IPC, a flexible printed circuit board is a product in which a circuit pattern is designed and produced on a flexible substrate in a printed manner. The flexible circuit board product has the advantages of small volume, light weight, and greatly reduced device volume, and is suitable for the development of electronic products in the direction of high density, miniaturization, light weight, thinness, and high reliability. Bending, winding, twisting, folding, and three-dimensional wiring can be arbitrarily arranged according to the requirements of the spatial layout, change the shape, and move and expand and contract arbitrarily in the three-dimensional space to achieve the integration of component assembly and wire connection. At least part of the structure of the flexible circuit board 146 is located in the sink 133. One end of the flexible circuit board 146 is connected to the third side 144, and the other end is connected to the display screen. The fingerprint recognition module 140 and Current and data transmission between displays.

In an embodiment, the flexible circuit board 146 includes a first circuit board and a second circuit board, the first circuit board is connected to the third side surface 144, and the second circuit board is connected to the display screen. Connection, the first circuit board and the second circuit board are connected through a board-to-board connector. When assembling the screen 20, the second circuit board is installed on the display screen, and the first circuit board is installed on the third side 144. After the fingerprint recognition module assembly 100 and the display screen are respectively assembled, the first circuit board and the second circuit board are assembled. The circuit board is connected through a board-to-board connector, and then the fingerprint identification module assembly 100 and the display are assembled together and fixed in the middle frame of the electronic device 10; or, the fingerprint identification module assembly 100 and the display are assembled After being assembled together, the first circuit board and the second circuit board are connected together through a board-to-board connector.

As shown in FIG. 9, in an embodiment, the second portion 132 passes through an edge of the first portion 131 so that the fingerprint identification module 140 and the display screen can be connected through a flexible circuit board 146. The flexible circuit board 146 is adhered to the second portion 132, and the fingerprint identification module assembly 100 is exposed as the second portion 132 passes through the first portion 131, thereby realizing the fingerprint identification module 140 and Electrical connection of the display.

As shown in FIG. 2, in an embodiment, the fingerprint identification module 140 is located in the non-display area 23, the flexible circuit board 146 is connected to the third side surface 144, and a portion of the non-display area is passed through. The display area 23 exposes the fingerprint identification module assembly 100. The fingerprint recognition module 140 is located in the non-display area 23 and does not affect the screen display of the screen 20. At the same time, the flexible circuit board 146 is located in the non-display area 23 and does not affect the display of the screen 20.

As shown in FIG. 10, in an embodiment, the fingerprint identification module 140 is located in the black border area 22, the flexible circuit board 146 is connected to the third side surface 144, and the non-display area is penetrated. 23 and part of the black border area 22, the fingerprint identification module assembly 100 is exposed. The fingerprint recognition module 140 is located in the black border area 22 and does not affect the screen display of the screen 20. Meanwhile, the flexible circuit board 146 is located in the non-display area 23 and the black border area 22 and does not affect the display of the screen 20.

As shown in FIG. 11, in an embodiment, the fingerprint recognition module 140 is a transparent structure and is located in the displayable area 21. The third side 144 is located in the displayable area 21 and the black border area 22. At the junction, the flexible circuit board 146 is connected to the third side surface 144 and penetrates the black border area 22 and the non-display area 23 to expose the fingerprint identification module assembly 100. The fingerprint recognition module 140 has a transparent structure and does not affect the display of the displayable area 21. At the same time, the flexible circuit board 146 is located in the non-display area 23 and the black border area 22, and does not affect the display of the screen 20.

At present, the fingerprint recognition module assembly 100 of the screen 20 of the electronic device 10 such as a mobile phone in the industry uses a single layer of glass, and a hole needs to be opened in the fingerprint recognition module assembly glass to accommodate the front fingerprint recognition module 140, thereby destroying The fingerprint recognition module assembly 100 is complete. The fingerprint identification module assembly 100 of the present application uses two transparent plates, which are bonded by a transparent OCA adhesive layer. The fingerprint recognition module 140 is placed in the interlayer at the bottom of the two transparent plates to integrate the fingerprint recognition function. The fingerprint recognition module 140 and the display screen are connected through a flexible circuit board 146. This application realizes the integration of the fingerprint recognition module assembly 100 and the fingerprint recognition module 140, avoids opening holes in the fingerprint recognition module assembly 100, and the position of the fingerprint recognition module 140 does not affect the display of the screen 20. effect.

The technical features of the embodiments described above can be arbitrarily combined. In order to simplify the description, all possible combinations of the technical features in the above embodiments have not been described. However, as long as there is no contradiction in the combination of these technical features, It should be considered as the scope described in this specification.

The above-mentioned embodiments only express several implementation manners of the present application, and their descriptions are more specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be noted that, for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of this application patent shall be subject to the appended claims.

Claims

A fingerprint identification module assembly for covering an electronic device display screen includes a first transparent plate, a second transparent plate, and a fingerprint identification module. The first transparent plate is stacked on the second A transparent plate, the first transparent plate and the second transparent plate are bonded by a transparent adhesive layer, and the fingerprint recognition module is located between the first transparent plate and the second transparent plate.
The fingerprint identification module assembly according to claim 1, wherein the transparent adhesive layer is an OCA adhesive layer, the OCA adhesive layer includes a first part and a second part, and the first part is adhered to the Between the first transparent plate and the second transparent plate, the second portion is adhered between the first transparent plate and the fingerprint recognition module, or the second portion is adhered to the first transparent plate Between two transparent plates and the fingerprint identification module.
The fingerprint identification module assembly according to claim 2, wherein the first portion and the second portion define a sink, and the sink extends through an edge of the first portion; or, the first portion Enclose the second part.
The fingerprint recognition module assembly according to claim 2, wherein the thickness of the first portion is greater than or equal to the sum of the thickness of the second portion and the thickness of the fingerprint recognition module.
The fingerprint identification module assembly according to claim 1, wherein the first transparent plate and the second transparent plate are transparent glass plates.
The fingerprint identification module assembly according to claim 1, wherein a shape of the fingerprint identification module is a circle or a track shape.
A screen includes a display screen and a fingerprint recognition module assembly, the fingerprint recognition module assembly covers the display screen, and the fingerprint recognition module assembly includes a first transparent plate, a second transparent plate, and a fingerprint recognition module. Group, the first transparent plate and the second transparent plate are bonded by a transparent adhesive layer, and the fingerprint recognition module is located between the first transparent plate and the second transparent plate.
The screen according to claim 7, wherein the transparent adhesive layer is an OCA adhesive layer, the OCA adhesive layer includes a first portion and a second portion connected to each other, and the first portion is adhered to the first portion Between the transparent plate and the second transparent plate, the second portion is bonded between the first transparent plate and the fingerprint recognition module, or the second portion is bonded to the second transparent plate Board and the fingerprint identification module.
The screen according to claim 8, wherein the thickness of the first portion is greater than or equal to the sum of the thickness of the second portion and the thickness of the fingerprint recognition module.
The screen according to claim 8, wherein the fingerprint recognition module comprises a first surface and a second surface disposed opposite to each other, the first surface is bonded to the first transparent plate, and the first Two surfaces are bonded to the second portion; or the first surface is bonded to the second portion, and the second surface is bonded to the second transparent plate; or the first surface and The second surfaces are all attached to the second portion.
The screen according to claim 10, wherein the fingerprint recognition module comprises a side peripheral surface, the side peripheral surface is connected between the first surface and the second surface, and the side peripheral surface The first and third sides are arranged opposite to each other, and the second and fourth sides are arranged opposite to each other. The second side is connected between the first and third sides, and the first Four sides are connected between the first side and the third side, the first side, the second side, and the fourth side are attached to the side wall of the first part, and the third side is located at the fingerprint recognition A side of the module far from the first part.
The screen according to claim 11, wherein the first portion and the second portion define a sink, the sink running through an edge of the first portion, between the fingerprint recognition module and the display screen Connected through a flexible circuit board, at least part of the structure of the flexible circuit board is located in the sink.
The screen according to claim 12, wherein one end of the flexible circuit board is connected to the third side, and the other end of the flexible circuit board is connected to the display screen.
The screen according to claim 13, wherein the flexible circuit board includes a first circuit board and a second circuit board, the first circuit board is connected to the third side, and the second circuit board It is connected to the display screen, and the first circuit board and the second circuit board are connected through a board-to-board connector.
The screen according to claim 12, comprising a displayable area, a black border area, and a non-display area, the black border area surrounding the displayable area, and the non-display area surrounding the black border area, so The fingerprint recognition module is located in the displayable area, the third side is located at the junction of the displayable area and the black edge area, the flexible circuit board is connected to the third side, and the black edge area is passed through And the non-display area to expose the fingerprint identification module assembly.
The screen according to claim 12, comprising a displayable area, a black border area, and a non-display area, the black border area surrounding the displayable area, and the non-display area surrounding the black border area, so The fingerprint recognition module is located in the black border area, the flexible circuit board is connected to the third side, and the non-display area and part of the black border area are penetrated to expose the fingerprint recognition module assembly.
The screen according to claim 12, comprising a displayable area, a black border area, and a non-display area, the black border area surrounding the displayable area, and the non-display area surrounding the black border area, so The fingerprint identification module is located in the non-display area, the flexible circuit board is connected to the third side, and a portion of the non-display area is penetrated to expose the fingerprint identification module assembly.
The screen according to claim 7, wherein the display screen comprises a display layer; or, the display screen comprises a display layer and a touch layer.
The screen according to claim 7, wherein the first transparent plate and the second transparent plate are transparent glass plates.
An electronic device includes a screen according to any one of claims 7-19.
A fingerprint identification module assembly includes a first transparent plate, a second transparent plate, and a fingerprint identification module. The first transparent plate and the second transparent plate are stacked, and the fingerprint identification module is located in the fingerprint identification module. Between a first transparent plate and the second transparent plate.
The fingerprint identification module assembly according to claim 21, wherein the first transparent plate and the second transparent plate are fixed by an OCA adhesive layer; the OCA adhesive layer includes a first portion and A second part, the first part is bonded between the first transparent plate and the second transparent plate, and the second part is bonded between the first transparent plate and the fingerprint recognition module Or the second part is adhered between the second transparent plate and the fingerprint recognition module.
The fingerprint recognition module assembly according to claim 22, wherein the first portion and the second portion define a sink, and the sink penetrates an edge of the first portion; or, the first portion Enclose the second part.