Fingerprint recognition module and display terminal

Abstract

An embodiment of the present application provides a fingerprint recognition module and a display terminal, relating to the field of fingerprint technology, and is used to solve the fingerprint recognition function of a multi-screen display terminal. The fingerprint recognition module includes a reflection component and a fingerprint sensing component. Among them, the reflection component includes a first reflection surface and a second reflection surface, and the plane where the first reflection surface is located intersects with the plane where the second reflection surface is located. The first reflection surface is used to reflect the incident light in the first direction towards the fingerprint sensing component, and the second reflection surface is used to reflect the incident light in the second direction towards the fingerprint sensing component; the first direction and the second direction are different; the fingerprint sensing component is used to perform fingerprint recognition according to the reflected light of the first reflection surface or the reflected light of the second reflection surface received.

Description

Technical Field

[0001] This application relates to the field of fingerprint technology, and particularly to a fingerprint recognition module and a display terminal. Background Art

[0002] With the development of multi-screen display terminals, the functions of display terminals are gradually increasing, and at the same time, the structures of display terminals are becoming increasingly complex. How to set a biometric sensor in a multi-screen display terminal, taking into account user needs while solving the difficulties in structural design, so as to obtain better commercial value, has always been a topic studied by technicians. Summary of the Invention

[0003] Embodiments of this application provide a fingerprint recognition module and a display terminal for solving the fingerprint recognition function of multi-display terminals.

[0004] To achieve the above object, this application adopts the following technical solutions:

[0005] In a first aspect of the embodiments of this application, a fingerprint recognition module is provided, including a reflection component and a fingerprint sensing component. Among them, the reflection component includes a first reflection surface and a second reflection surface, and the plane where the first reflection surface is located intersects with the plane where the second reflection surface is located. The first reflection surface is used to reflect the incident light in the first direction towards the fingerprint sensing component, and the second reflection surface is used to reflect the incident light in the second direction towards the fingerprint sensing component; the first direction and the second direction are different; the fingerprint sensing component is used to perform fingerprint recognition according to the reflected light of the first reflection surface or the reflected light of the second reflection surface received.

[0006] The fingerprint sensing component provided by the embodiments of this application can reflect the incident light in the first direction towards the fingerprint sensing component through the first reflection surface of the reflection component, thereby realizing the fingerprint recognition function in the first direction; the incident light in the second direction can be reflected towards the fingerprint sensing component through the second reflection surface of the reflection component, thereby realizing the fingerprint recognition function in the second direction. Compared with the related art that requires a fingerprint recognition module to be set under each display module, the fingerprint recognition module provided by the embodiments of this application can use the same fingerprint sensing component to realize the fingerprint recognition functions in two different directions. That is to say, the fingerprint recognition module provided by the embodiments of this application can use the same fingerprint sensing component to respectively realize the fingerprint recognition functions of two display modules, which can effectively reduce the cost of the fingerprint recognition module.

[0007] In addition, the reflection component can effectively change the fingerprint incident light in the fingerprint recognition module, that is, change the propagation direction of the incident light in the first direction or the propagation direction of the incident light in the second direction, thereby being able to reduce the size of the fingerprint recognition module.

[0008] In some embodiments, the reflection component further includes a rotating member for driving the second reflection surface to rotate. The rotating member drives the second reflection surface to rotate according to the display module for which fingerprint recognition is required.

[0009] In some embodiments, the reflection component is a prism. The first reflection surface and the second reflection surface are integrated on the same optical element, with a simple structure.

[0010] In some embodiments, the reflection component includes a first reflector and a second reflector; the first reflector includes a first reflection surface, and the second reflector includes a second reflection surface. The reflection component can be two optical elements, expanding the setting range of the fingerprint recognition module.

[0011] In some embodiments, the second reflector is disposed between the first reflector and the fingerprint sensing component. The size of the fingerprint recognition module is reduced.

[0012] In some embodiments, one surface of the first reflector and one surface of the second reflector are attached together. The size of the fingerprint recognition module is reduced.

[0013] In some embodiments, one edge of the first reflector and one edge of the second reflector are attached together. The size of the fingerprint recognition module is reduced.

[0014] In some embodiments, the reflection component further includes a fixing member, and the first reflector and the second reflector are disposed within the fixing member; the fixing member is used to fix the first reflector and the second reflector together. The first reflector and the second reflector are integrated into one body through the fixing member, facilitating assembly.

[0015] In some embodiments, the first reflection surface further includes a first film layer; the second reflection surface further includes a second film layer; the first film layer and the second film layer are different. The first film layer and the second film layer are used to achieve different wavelength bands or polarization directions of the reflected light of the first reflection surface and the reflected light of the second reflection surface.

[0016] In some embodiments, the first reflection surface is one of a plane, a spherical surface, or a free-form surface. The first reflection surface satisfies various optical designs.

[0017] In some embodiments, the second reflection surface is one of a plane, a spherical surface, or a free-form surface. The second reflection surface satisfies various optical designs.

[0018] In some embodiments, the fingerprint recognition module further includes a packaging shell, and the reflection component and the fingerprint sensing component are both disposed within the packaging shell; the packaging shell includes a first opening and a second opening, and the incident light in the first direction passes through the first opening and is incident on the first reflection surface; the incident light in the second direction passes through the second opening and is incident on the second reflection surface. The packaging shell can be used to integrate the fingerprint recognition module into one body, facilitating assembly.

[0019] In some embodiments, the fingerprint recognition module further includes a first lens group, which is disposed in the first opening. The first lens group is used to converge the incident light in the first direction.

[0020] In some embodiments, the fingerprint recognition module further includes a second lens group, which is disposed in the second opening. The second lens group is used to converge the incident light in the second direction.

[0021] In some embodiments, the fingerprint sensing component includes: a third lens group and a sensor; the third lens group is disposed between the reflection component and the sensor; the third lens group is used to converge the reflected light from the first reflection surface or the second reflection surface. The third lens group converges the reflected light and transmits the reflected light to the sensor for fingerprint recognition.

[0022] In a second aspect of the embodiments of the present application, there is provided a fingerprint recognition module, including a reflection component and a fingerprint sensing component. The reflection component includes a reflection surface and a rotating member, and the rotating member is used to drive the reflection surface to rotate so as to reflect the incident light in the first direction towards the fingerprint sensing component; or, reflect the incident light in the second direction towards the fingerprint sensing component; the first direction and the second direction are different; the fingerprint sensing component is used to perform fingerprint recognition according to the received incident light in the first direction or the second direction.

[0023] The fingerprint recognition module provided by the embodiments of the present application only needs to be provided with one reflection surface. According to the difference of the display module for fingerprint setting, the rotating member is controlled to drive the reflection surface to rotate to different positions, thereby realizing the fingerprint recognition function.

[0024] In a third aspect of the embodiments of the present application, there is provided a display terminal, including a first display module and a second display module arranged opposite to each other; the display surface of the first display module and the display surface of the second display module are arranged back to back; the fingerprint recognition module according to any one of the first aspect or the second aspect; the fingerprint recognition module is disposed between the first display module and the second display module; the first display module includes a first fingerprint recognition area; the second display module includes a second fingerprint recognition area; the first display module provides the incident light in the first direction to the fingerprint recognition module through the first fingerprint recognition area, and the second display module provides the incident light in the second direction to the fingerprint recognition module through the second fingerprint recognition area.

[0025] The display terminal provided in the third aspect of the embodiments of the present application includes the fingerprint recognition module according to any one of the first aspect or the second aspect, and its beneficial effects are the same as those of the fingerprint recognition module, which will not be elaborated here.

[0026] In some embodiments, the first display module includes a first support layer; the first support layer is hollowed out in the first fingerprint recognition area; the second display module includes a second support layer; the second support layer is hollowed out in the second fingerprint recognition area. The support layer is used to support the display module and is hollowed out in the fingerprint recognition area to avoid blocking light.

[0027] In some embodiments, the second display module includes a light-transmitting support member; the light-transmitting support member is disposed in the hollow area of the second support layer. The light-transmitting support member is used to support and protect the display module in the fingerprint recognition area to prevent the display module from being damaged.

[0028] In some embodiments, the display terminal further includes a first sealing member and a second sealing member; the fingerprint recognition module further includes a packaging shell; the first sealing member is disposed between the packaging shell and the first display module, and the second sealing member is disposed between the packaging shell and the second display module; the first sealing member and the second sealing member are used to form a sealed cavity between the packaging shell and the first display module and the second display module. This can prevent the accuracy of fingerprint recognition from being reduced due to light leakage and prevent dust from entering the interior of the display terminal. Description of the Drawings

[0029] Figure 1 A schematic structural diagram of a display terminal provided by an embodiment of the present application;

[0030] Figure 2 Another schematic structural diagram of a display terminal provided by an embodiment of the present application;

[0031] Figure 3 Another schematic structural diagram of a display terminal provided by an embodiment of the present application;

[0032] Figure 4A Another schematic structural diagram of a fingerprint recognition module provided by an embodiment of the present application;

[0033] Figure 4B Another schematic structural diagram of a fingerprint recognition module provided by an embodiment of the present application;

[0034] Figure 4C Another schematic structural diagram of a fingerprint recognition module provided by an embodiment of the present application;

[0035] Figure 4D Another schematic structural diagram of a fingerprint recognition module provided by an embodiment of the present application;

[0036] Figure 5A Another schematic structural diagram of a fingerprint recognition module provided by an embodiment of the present application;

[0037] Figure 5B Another schematic structural diagram of a fingerprint recognition module provided by an embodiment of the present application;

[0038] Figure 5C Another schematic structural diagram of a fingerprint recognition module provided by an embodiment of the present application;

[0039] Figure 5D Another schematic structural diagram of a fingerprint recognition module provided by an embodiment of the present application;

[0040] Figure 5E It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0041] Figure 6A It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0042] Figure 6B It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0043] Figure 6C It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0044] Figure 6D It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0045] Figure 6E It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0046] Figure 6F It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0047] Figure 6G It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0048] Figure 6H It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0049] Figure 6I It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0050] Figure 7 It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0051] Figure 8 It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0052] Figure 9 It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0053] Figure 10 It is a schematic structural diagram of another fingerprint recognition module provided by an embodiment of the present application;

[0054] Figure 11A It is a schematic structural diagram of another display terminal provided by an embodiment of the present application;

[0055] Figure 11B A schematic diagram of the positions of a fingerprint recognition module and a display module provided by an embodiment of the present application;

[0056] Figure 11C Another schematic diagram of the positions of a fingerprint recognition module and a display module provided by an embodiment of the present application;

[0057] Figure 11D Another schematic diagram of the positions of a fingerprint recognition module and a display module provided by an embodiment of the present application;

[0058] Figure 12A Another schematic diagram of the positions of a fingerprint recognition module and a display module provided by an embodiment of the present application;

[0059] Figure 12B Another schematic diagram of the positions of a fingerprint recognition module and a display module provided by an embodiment of the present application;

[0060] Figure 12C Another schematic diagram of the positions of a fingerprint recognition module and a display module provided by an embodiment of the present application;

[0061] Figure 13 Another schematic diagram of the positions of a fingerprint recognition module and a display module provided by an embodiment of the present application;

[0062] Figure 14 Another schematic diagram of the structure of a fingerprint recognition module provided by an embodiment of the present application;

[0063] Figure 15A Another schematic diagram of the positions of a fingerprint recognition module and a display module provided by an embodiment of the present application;

[0064] Figure 15B Another schematic diagram of the positions of a fingerprint recognition module and a display module provided by an embodiment of the present application;

[0065] Figure 16 Another schematic diagram of the structure of a fingerprint recognition module provided by an embodiment of the present application;

[0066] Figure 17A Another schematic diagram of the positions of a fingerprint recognition module and a display module provided by an embodiment of the present application;

[0067] Figure 17B Another schematic diagram of the positions of a fingerprint recognition module and a display module provided by an embodiment of the present application.

[0068] 1 - Display terminal; 21 - First display module; 22 - Second display module; 3 - Middle frame; 4 - Rear cover; 5 - Cover plate; 11 - Bending area; 121 - First non - bending area; 122 - Second non - bending area; 31 - Rotating shaft; 321 - First structural member; 322 - Second structural member; 10 - Fingerprint recognition module; 100 - Reflection component; 200 - Fingerprint sensing component; 300 - Encapsulation shell; 101 - First reflecting surface; 102 - Second reflecting surface; 110 - First reflecting mirror; 120 - Second reflecting mirror; 130 - Fixing member; 210 - Third lens group; 210' - Microlens array; 220 - Sensor; 301 - First opening; 302 - Second opening; 310 - First lens group; 320 - Second lens group; 211 - First fingerprint recognition area; 221 - Second fingerprint recognition area; 212 - First support layer; 222 - Second support layer; 213 - First light - transmissive support member; 223 - Second light - transmissive support member; 214 - First seal; 224 - Second seal; 103 - Rotating assembly; 104 - Reflecting surface. Detailed implementation manners

[0069] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0070] Hereinafter, terms such as "second" and "first" are only for convenience of description, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "second", "first", etc. may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0071] In addition, in the embodiments of the present application, orientation terms such as "upper", "lower", "left", "right", etc. may include but are not limited to being defined relative to the schematic placement of components in the accompanying drawings. It should be understood that these directional terms may be relative concepts, which are used for relative description and clarification, and they may change correspondingly according to the change in the orientation of the components in the accompanying drawings.

[0072] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium.

[0073] In the embodiments of the present application, "and / or" describes the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0074] The present application provides a display terminal, which has two display modules arranged opposite to each other. The display terminal can be a mobile phone, a television, a monitor, a tablet personal computer, a laptop computer, an in-vehicle computer, a personal digital assistant (PDA), or other terminal devices with a display interface, or a smart display wearable device such as a smart watch or a smart bracelet. The embodiments of the present application do not make special restrictions on the specific form of the above display terminal. For the convenience of description, the following embodiments are all exemplified by taking the display terminal as a mobile phone.

[0075] An example of the structure of a display terminal is as Figure 1 shown. The display terminal 1 mainly includes a first display module 21, a second display module 22, a middle frame 3, and a rear cover (or called a battery cover, a rear shell) 4. Among them, the first display module 21 and the second display module 22 are arranged opposite to each other.

[0076] The first display module 21 and the second display module 22 have a display surface on which the display screen can be seen and a back surface arranged opposite to the above display surface. The display surfaces of the first display module 21 and the second display module 22 are arranged back to back. The back surfaces of the first display module 21 and the second display module 22 are arranged face to face.

[0077] The above first display module 21 and second display module 22 include a display panel (DP).

[0078] In an embodiment of the present application, the first display module 21 and the second display module 22 may be organic light-emitting diode display modules. In this case, the above display screen is an organic light-emitting diode (OLED) display screen, a micro organic light-emitting diode (Micro-LED) display screen, a mini light emitting diodes (Mini-LED) display screen, a quantum dot light emitting diodes (QLED) display screen, or an active matrix organic light emitting diode (AMOLED) display screen. Since an electroluminescent layer is provided in each sub-pixel of the OLED display screen, the OLED display screen can achieve self-luminescence after receiving the working voltage. In this case, there is no need to provide the above backlight module in the first display module 21 and the second display module 22 having the OLED display screen.

[0079] The middle frame 3 is located between the first display module 21 and the second display module 22. The middle frame 3 may be an integral part or a combination of multiple components. The middle frame 3 can be used to install internal components such as a battery, a printed circuit board (PCB), a camera, or an antenna. After the rear cover 4 is covered with the middle frame 3, the above internal components are located between the rear cover 4 and the middle frame 3.

[0080] In some embodiments, the display terminal 1 further includes a cover plate.

[0081] Among them, the cover plate is located on the display surface side of the display module (for example: the first display module 21, the second display module 22), and the cover plate can be used to protect and support the display module. The cover plate may be, for example, a cover glass (CG), and the flexible glass may have a certain toughness.

[0082] It should be noted here that the cover plate may be provided only on the display surface of the first display module 21, or only on the display surface of the second display module 22, or on the display surfaces of both the first display module 21 and the second display module 22, or, the cover plate may not be provided on the display surfaces of both the first display module 21 and the second display module 22. The embodiments of the present application do not limit this, and it can be reasonably set according to actual needs.

[0083] In a possible embodiment of the present application, as Figure 2As shown, the display terminal 1 is a foldable display terminal. This foldable display terminal has a foldable flexible display module. Exemplarily, the first display module 21 is a foldable flexible display module.

[0084] As Figure 2 shown, the display terminal 1 can be an inward-folded mobile phone with the first display module 21 on the inner side and the second display module 22 on the outer side in the folded state.

[0085] Since the second display module 22 is located on the outer side of the display terminal 1 in the folded state, a cover plate is usually required to be provided on the display surface of the second display module 22, while no cover plate is provided on the display surface of the first display module 21.

[0086] Or, as Figure 3 shown, the display terminal 1 can be an outward-folded mobile phone with the first display module 21 on the outer side and the second display module 22 on the inner side in the folded state. At this time, a cover plate is provided on the display surface of the first display module 21.

[0087] According to another classification method, as Figure 3 shown, the display terminal 1 can also be divided into a bending area 11, a first non-bending area 121, and a second non-bending area 122. The bending area 11 is provided between the first non-bending area 121 and the second non-bending area 122.

[0088] When the display terminal 1 is in the folded state, the bending area 11 is in a bent shape, and the first non-bending area 121 and the second non-bending area 122 are arranged oppositely.

[0089] The material of the bending area 11 of the first display module 21 is a flexible material. The materials of the first non-bending area 121 and the second non-bending area 122 can be flexible materials, can be rigid materials, or can be partially flexible materials and partially rigid materials. The embodiments of the present application do not make any limitations in this regard.

[0090] When the substrate of the first display module 21 adopts a flexible resin material, such as polyethylene terephthalate (PET), the first display module 21 can have the characteristic of being bendable.

[0091] Among them, as Figure 3 shown, the middle frame 3 includes a rotating shaft 31, a first structural member 321, and a second structural member 322. The first structural member 321 and the second structural member 322 are located on opposite sides of the rotating shaft 31 and are respectively rotationally connected to the rotating shaft 31.

[0092] The first structural member 321 and the second structural member 322 can be used to carry the first display module 21, so that the first display module 21 can be kept as flat as possible during use and the back surface of the first display module 21 can be protected.

[0093] The first structural member 321 can also be used to carry the second display module 22 and protect the back surface of the second display module 22.

[0094] Exemplarily, the first structural member 321 supports and fits on the first non-bending area 121 of the first display module 21, the second structural member 322 supports and fits on the second non-bending area 122 of the first display module 21, and the rotating shaft 31 supports and fits on the bending area 11 of the first display module 21. The first structural member 321 and the second structural member 322 are respectively rotatably connected to the rotating shaft 31, so as to drive the first display module 21 to fold or unfold.

[0095] In addition, other electronic components, such as a camera, earphone, receiver, button, or battery, etc., can also be provided on the first structural member 321 and the second structural member 322. The embodiments of the present application do not limit the other electronic components provided on the first structural member 321 and the second structural member 322, and can be reasonably set according to needs.

[0096] In some embodiments, the display terminal 1 further includes a frame (not shown), and the frame is disposed around the middle frame 3. The frame and the middle frame 3 can be an integrally formed structural member. Or, the frame and the middle frame 3 can also be two separate structural members, and the frame and the middle frame 3 can be assembled by one or a combination of assembly methods such as snap connection, adhesive bonding, and welding. The embodiments of the present application do not limit this.

[0097] The frame is disposed around the contours of the first display module 21 and the second display module 22, and forms a sealed housing in cooperation with the cover plate and the rear cover 4, playing a protective role for the first display module 21 and the second display module 22.

[0098] The embodiments of the present application further provide a fingerprint recognition module, and the fingerprint recognition module is disposed under the display module of the display terminal 1. That is to say, the fingerprint recognition module is disposed under the first display module 21 and the second display module 22 of the display terminal 1.

[0099] Three specific embodiments are provided below to exemplarily illustrate the fingerprint recognition module.

[0100] Embodiment 1

[0101] As Figure 4A shown, the fingerprint recognition module 10 includes a reflection component 100 and a fingerprint sensing component 200. Regarding the structure of the reflection component 100, as Figure 4A shown, the reflection component 100 includes a first reflection surface 101 and a second reflection surface 102.

[0102] Among them, the plane where the first reflecting surface 101 is located intersects with the plane where the second reflecting surface 102 is located. In this way, the first reflecting surface 101 and the second reflecting surface 102 can reflect incident light in two different directions into the same fingerprint sensing component 200.

[0103] In some embodiments, as Figure 4A shown, the first reflecting surface 101 directly intersects with the second reflecting surface 102. For example, the first reflecting surface 101 is perpendicular to the second reflecting surface 102.

[0104] In other embodiments, as Figure 4B shown, the plane where the first reflecting surface 101 is located intersects with the plane where the second reflecting surface 102 is located.

[0105] Alternatively, by way of example, as Figure 4C shown, the plane where the first reflecting surface 101 is located intersects with the second reflecting surface 102.

[0106] Alternatively, by way of example, as Figure 4D shown, the plane where the first reflecting surface 101 is located intersects with the plane where the second reflecting surface 102 is located.

[0107] The embodiments of the present application do not limit this, as long as the plane where the first reflecting surface 101 is located intersects with the plane where the second reflecting surface 102 is located.

[0108] The reflecting component 100 can be an optical element, or two or more optical elements integrated together.

[0109] In some embodiments, the reflecting component 100 is an optical element.

[0110] By way of example, as Figure 4D shown, the reflecting component 100 is a prism. For example, the prism can be a triangular prism, a right prism, or a pentagonal prism, etc. The embodiments of the present application do not limit this, and it can be reasonably set according to actual needs.

[0111] In this way, the first reflecting surface 101 and the second reflecting surface 102 can be integrated on the same optical element, which can not only save the occupied space of the fingerprint recognition module 10, but also be convenient for manufacturing and save the process cost.

[0112] In other embodiments, the reflecting component 100 can be an integration of two optical elements.

[0113] By way of example, as Figure 5A shown, the reflecting component 100 includes a first reflecting mirror 110 and a second reflecting mirror 120.

[0114] Among them, the first reflector 110 includes a first reflecting surface 101, and the second reflector 120 includes a second reflecting surface 102. The second reflector 120 is disposed between the first reflector 110 and the fingerprint sensing component 200.

[0115] Exemplarily, as Figure 5A shown, the first reflector 110 and the second reflector 120 are spaced apart, and the second reflector 120 is located on the reflection path of the first reflector 110. In this way, the second reflecting surface 102 needs to meet the condition that it can both transmit the reflected light of the first reflecting surface 101 and reflect the fingerprint light of the second display module 21.

[0116] Alternatively, exemplarily, as Figure 5B shown, the first reflector 110 and the second reflector 120 are spaced apart, and the second reflector 120 is disposed avoiding the reflection path of the first reflector 110. In this way, the second reflecting surface 102 does not need to project the reflected light of the first reflecting surface 101, saving the process cost.

[0117] Alternatively, exemplarily, as Figure 5C shown, a part of the first reflector 110 and a part of the second reflector 120 are attached together. For example, one surface of the first reflector 110 and one surface of the second reflector 120 are attached together.

[0118] Among them, the first reflector 110 and the second reflector 120 can be adhesively bonded to each other by an optical adhesive. The optical adhesive is a light-transmitting or transparent optical adhesive.

[0119] Alternatively, exemplarily, as Figure 5D shown, a part of the first reflector 110 and a part of the second reflector 120 are attached together. For example, one edge of the first reflector 110 and one edge of the second reflector 120 are attached together.

[0120] In some embodiments, as Figure 5E shown, the reflection component 100 further includes a fixing member 130.

[0121] Among them, the first reflector 110 and the second reflector 120 are disposed within the fixing member 130. The first reflector 110 and the second reflector 120 can be fixed together by the fixing member 130, facilitating the integration of the fingerprint recognition module 10.

[0122] Regarding the shapes of the first reflecting surface 101 and the second reflecting surface 102, in some embodiments, the first reflecting surface 101 can be one of a plane, a spherical surface or a free-form surface. The second reflecting surface 102 can be one of a plane, a spherical surface or a free-form surface.

[0123] Exemplarily, as Figure 6AAs shown, the first reflecting surface 101 is a plane, and the second reflecting surface 102 is a plane.

[0124] The accuracy of the reflected light reflected by the plane for the incident light is easier to control, and the imaging quality is higher. Therefore, both the first reflecting surface 101 and the second reflecting surface 102 are set as planes, and the reflection effect is better.

[0125] Or, exemplarily, as Figure 6B shown, the first reflecting surface 101 is a plane, and the second reflecting surface 102 is a spherical surface.

[0126] Or, exemplarily, as Figure 6C shown, the first reflecting surface 101 is a plane, and the second reflecting surface 102 is a free-form surface.

[0127] Or, exemplarily, as Figure 6D shown, the first reflecting surface 101 is a spherical surface, and the second reflecting surface 102 is a plane.

[0128] Or, exemplarily, as Figure 6E shown, the first reflecting surface 101 is a spherical surface, and the second reflecting surface 102 is a spherical surface. In this way, the spherical surface has a converging effect on the reflected light reflected by the incident light.

[0129] Or, exemplarily, as Figure 6F shown, the first reflecting surface 101 is a spherical surface, and the second reflecting surface 102 is a free-form surface.

[0130] Or, exemplarily, as Figure 6G shown, the first reflecting surface 101 is a free-form surface, and the second reflecting surface 102 is a plane.

[0131] Or, exemplarily, as Figure 6H shown, the first reflecting surface 101 is a free-form surface, and the second reflecting surface 102 is a spherical surface.

[0132] Or, exemplarily, as Figure 6I shown, the first reflecting surface 101 is a free-form surface, and the second reflecting surface 102 is a free-form surface.

[0133] The embodiments of the present application do not limit the shapes of the first reflecting surface 101 and the second reflecting surface 102, and they can be reasonably set according to actual needs.

[0134] In some embodiments, the first reflecting surface 101 further includes a first film layer, and the second reflecting surface 102 further includes a second film layer.

[0135] The first film layer is disposed on the surface of the first reflecting surface 101. When the incident light is reflected by the first reflecting surface 101, the first film layer can be used to change the wavelength band of the incident light or change the polarization direction of the incident light.

[0136] Exemplarily, disposing the first film layer on the surface of the first reflecting surface 101 can make the reflected light be light with all spectral wavelengths.

[0137] Alternatively, exemplarily, disposing the first film layer on the surface of the first reflecting surface 101 can also make the reflected light be light in a partial wavelength band, for example, in the infrared wavelength band, ultraviolet wavelength band or visible light wavelength band.

[0138] Alternatively, exemplarily, disposing the first film layer on the surface of the first reflecting surface 101 can make the reflected light be omnidirectional light, that is, the reflected light is light in all directions.

[0139] Alternatively, exemplarily, disposing the first film layer on the surface of the first reflecting surface 101 can make the reflected light be polarized light. For example, it can be linearly polarized light, elliptically polarized light, circularly polarized light or partially polarized light.

[0140] Similarly, the second film layer is disposed on the surface of the second reflecting surface 102. When the incident light is reflected by the second reflecting surface 102, the second film layer can be used to change the wavelength band of the incident light or change the polarization direction of the incident light. Specifically, reference can be made to the above introduction to the first film layer, and details will not be repeated here.

[0141] In some embodiments, the first film layer and the second film layer can be the same. In this way, the light reflected by the first reflecting surface 101 and the light reflected by the second reflecting surface 102 can be light in the same wavelength band or light with the same polarization direction.

[0142] Exemplarily, through coating, the light reflected by the first reflecting surface 101 and the light reflected by the second reflecting surface 102 can both be light with all spectral wavelengths.

[0143] Alternatively, exemplarily, through coating, the light reflected by the first reflecting surface 101 and the light reflected by the second reflecting surface 102 can be light in the same wavelength band. For example, they are both light in the infrared wavelength band, ultraviolet wavelength band or visible light wavelength band.

[0144] Alternatively, exemplarily, through coating, the light reflected by the first reflecting surface 101 and the light reflected by the second reflecting surface 102 can be light in all directions.

[0145] Alternatively, exemplarily, through coating, the polarization directions of the light reflected by the first reflecting surface 101 and the light reflected by the second reflecting surface 102 can be the same. For example, they are both linearly polarized light, elliptically polarized light, circularly polarized light or partially polarized light.

[0146] In some other embodiments, the first film layer and the second film layer may be different. In this way, the light reflected by the first reflecting surface 101 and the light reflected by the second reflecting surface 102 can be light of different wavelength bands or light of different polarization directions.

[0147] In this way, when the light reflected by the first reflecting surface 101 needs to pass through the second reflecting surface 102 to reach the fingerprint sensing component 200 (for example: as Figure 5A shown in the figure), the light reflected by the first reflecting surface 101 and the light reflected by the second reflecting surface 102 are different, which is beneficial for the fingerprint sensing component 200 to distinguish the fingerprints of different display modules.

[0148] Exemplarily, by coating, the light reflected by the first reflecting surface 101 can be light in the infrared wavelength band, and the light reflected by the second reflecting surface 102 can be light in the ultraviolet wavelength band.

[0149] Or, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be light in the infrared wavelength band, and the light reflected by the second reflecting surface 102 can be light in the visible light wavelength band.

[0150] Or, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be light in the ultraviolet wavelength band, and the light reflected by the second reflecting surface 102 can be light in the infrared wavelength band.

[0151] Or, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be light in the ultraviolet wavelength band, and the light reflected by the second reflecting surface 102 can be light in the visible light wavelength band.

[0152] Or, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be light in the visible light wavelength band, and the light reflected by the second reflecting surface 102 can be light in the infrared wavelength band.

[0153] Or, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be light in the visible wavelength band, and the light reflected by the second reflecting surface 102 can be light in the ultraviolet wavelength band.

[0154] Or, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be linearly polarized light, and the light reflected by the second reflecting surface 102 can be elliptically polarized light.

[0155] Or, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be linearly polarized light, and the light reflected by the second reflecting surface 102 can be circularly polarized light.

[0156] Or, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be linearly polarized light, and the light reflected by the second reflecting surface 102 can be partially polarized light.

[0157] Alternatively, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be elliptically polarized light, and the light reflected by the second reflecting surface 102 can be linearly polarized light.

[0158] Alternatively, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be elliptically polarized light, and the light reflected by the second reflecting surface 102 can be circularly polarized light.

[0159] Alternatively, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be elliptically polarized light, and the light reflected by the second reflecting surface 102 can be partially polarized light.

[0160] Alternatively, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be circularly polarized light, and the light reflected by the second reflecting surface 102 can be linearly polarized light.

[0161] Alternatively, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be circularly polarized light, and the light reflected by the second reflecting surface 102 can be elliptically polarized light.

[0162] Alternatively, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be circularly polarized light, and the light reflected by the second reflecting surface 102 can be partially polarized light.

[0163] Alternatively, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be partially polarized light, and the light reflected by the second reflecting surface 102 can be linearly polarized light.

[0164] Alternatively, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be partially polarized light, and the light reflected by the second reflecting surface 102 can be elliptically polarized light.

[0165] Alternatively, exemplarily, by coating, the light reflected by the first reflecting surface 101 can be partially polarized light, and the light reflected by the second reflecting surface 102 can be circularly polarized light.

[0166] In some embodiments, the first film layer and the second film layer can also be multi-layered. In this way, it is possible to not only change the wavelength band of the reflected light but also change the polarization direction of the reflected light. For example: the light reflected by the first reflecting surface 101 is circularly polarized light in the infrared wavelength band, and the light reflected by the second reflecting surface 102 is linearly polarized light in the visible light wavelength band.

[0167] Regarding the fingerprint sensing component 200, in some embodiments, as Figure 7 shown, the fingerprint sensing component 200 includes: a third lens group 210 and a sensor 220.

[0168] The third lens group 210 is disposed between the reflection component 100 and the sensor 220. The third lens group 210 can be used to converge the light reflected by the first reflection surface 101 or the second reflection surface 102 of the reflection component 100.

[0169] The reflected light can be converged toward the receiving surface of the sensor 220 through the third lens group 210, increasing the amount of light reaching the receiving surface of the sensor 220, thereby improving the clarity of the optical fingerprint pattern and further improving the accuracy of fingerprint recognition.

[0170] Wherein, the third lens group 210 may be composed of one or more lenses. In the embodiments of the present application, the number, parameters, and the distance between the lenses of the third lens group 210 are not limited, and can be reasonably set according to actual needs.

[0171] Exemplarily, the sensor 220 is a biometric sensor, such as a fingerprint sensor.

[0172] The fingerprint light of the user is reflected by the first reflection surface 101, converged by the third lens group 210 of the fingerprint sensing component 200, and then incident on the sensor 220 for fingerprint light recognition, thereby realizing fingerprint acquisition. In this way, the structure of the fingerprint sensing component 200 is simple and the cost is low.

[0173] In some other embodiments, as Figure 8 shown, the fingerprint sensing component 200 includes a microlens array 210' and a sensor 220.

[0174] Wherein, the microlens array 210' is disposed between the reflection component 100 and the sensor 220. That is to say, the third lens group 210 of the fingerprint sensing component 200 in the previous embodiment is replaced by the microlens array 210'.

[0175] The difference is that according to the imaging principle and the requirements of the depth of field, a certain distance must be maintained between the third lens group 210 and the sensor 220 to ensure clear imaging, while the microlens array 210' can be in contact with the sensor 220. Therefore, a certain distance does not need to be reserved between the microlens array 210' and the sensor 220 to ensure clear imaging effect. In this way, the size of the fingerprint sensing component 200 can be reduced, and further the size of the fingerprint recognition module 10 can be reduced.

[0176] In still some other embodiments, the fingerprint sensing component 200 is only the sensor 220. In this way, there is no need to provide the third lens group 210 or the microlens array 210' between the reflection component 100 and the sensor 220.

[0177] It is hereby clarified that the third lens group 210 or the microlens array 210' in the fingerprint sensing component 200 is set according to the actual situation, and the embodiments of the present application do not limit this.

[0178] In some embodiments, as Figure 9 shown, the fingerprint recognition module 10 further includes a packaging shell 300, and the reflection component 100 and the fingerprint sensing component 200 are both arranged in the packaging shell 300.

[0179] The packaging shell 300 includes a first opening 301 and a second opening 302. The incident light in the first direction x passes through the first opening 301 and is incident on the first reflection surface 101. The incident light in the second direction y passes through the second opening 302 and is incident on the second reflection surface 102. Among them, the first direction x and the second direction y are different.

[0180] Furthermore, the fingerprint sensing component 200 is configured to perform fingerprint recognition according to the reflected light of the first reflection surface 101 or the reflected light of the second reflection surface 102 received.

[0181] In some embodiments, as Figure 10 shown, the fingerprint recognition module 10 further includes a first lens group 310 and a second lens group 320. Among them, the first lens group 310 is arranged at the first opening 301, and the second lens group 320 is arranged at the second opening 302.

[0182] The incident light in the first direction x is converged to the first reflection surface 101 through the first lens group 310, and then reflected by the first reflection surface 101 to the third lens group 210 of the fingerprint sensing component 200, and is converged to the sensor 220 again through the third lens group 210, realizing fingerprint recognition in the first direction x.

[0183] The incident light in the second direction y is converged to the second reflection surface 102 through the second lens group 320, and then reflected by the second reflection surface 102 to the third lens group 210 of the fingerprint sensing component 200, and is converged to the sensor 220 again through the third lens group 210, realizing fingerprint recognition in the second direction y.

[0184] Regarding the position of the fingerprint recognition module 10, as Figure 11A shown, the fingerprint recognition module 10 is arranged between the first display module 21 and the second display module 22.

[0185] That is to say, the fingerprint recognition module 10 is arranged in the middle frame 3 between the first display module 21 and the second display module 22. It is hereby clarified that the middle frame 3 also has openings at the positions of the first structural member 321 corresponding to the incident light in the first direction x and the incident light in the second direction y to avoid blocking the fingerprint light.

[0186] Among them, asFigure 11B As shown, the first display module 21 includes a first fingerprint recognition area 211, and the second display module 22 includes a second fingerprint recognition area 221.

[0187] Exemplarily, some pixels of the first fingerprint recognition area 211 of the first display module 21 are in a flash mode, intermittently emitting flashes toward the display surface side of the first display module 21 to sense the touch of the user's finger. When the user's finger touches the first fingerprint recognition area 211 of the first display module 21, the light of the light-emitting pixels of the first fingerprint recognition area 211 is reflected on the surface of the user's finger and forms fingerprint light rays returning to the first display module 21.

[0188] That is to say, the first display module 21 provides incident light (fingerprint light rays) in the first direction x to the fingerprint recognition module 10 through the first fingerprint recognition area 211.

[0189] The incident light in the first direction x is reflected by the first reflecting surface 101 of the reflecting component 100 to the fingerprint sensing component 200, realizing fingerprint recognition on the first display module 21, thereby forming the fingerprint information of the first display module 21.

[0190] Similarly, some pixels of the second fingerprint recognition area 221 of the second display module 22 are in a flash mode, intermittently emitting flashes toward the display surface side of the second display module 22 to sense the touch of the user's finger. When the user's finger touches the second fingerprint recognition area 221 of the second display module 22, the light of the light-emitting pixels of the second fingerprint recognition area 221 is reflected on the surface of the user's finger and forms fingerprint light rays returning to the second display module 22.

[0191] That is to say, the second display module 22 provides incident light (fingerprint light rays) in the second direction y to the fingerprint recognition module 10 through the second fingerprint recognition area 221.

[0192] The incident light in the second direction y is reflected by the second reflecting surface 102 of the reflecting component 100 to the fingerprint sensing component 200, realizing fingerprint recognition on the second display module 22, thereby forming the fingerprint information of the second display module 22.

[0193] Exemplarily, the display terminal 1 is an inward-folded foldable display terminal. When the display terminal 1 is in an unfolded state and the first display module 21 is in use, the fingerprint recognition module 10 collects the fingerprint optical information of the first display module 21 for fingerprint recognition. When the display terminal 1 is in a folded state and the second display module 22 is in use, the fingerprint recognition module 10 collects the fingerprint optical information of the second display module 22 for fingerprint recognition.

[0194] In some embodiments, such as Figure 11CAs shown, the first display module 21 includes a first support layer 212, and the first support layer 212 is hollowed out in the first fingerprint recognition area 211. The second display module 22 includes a second support layer 222, and the second support layer 222 is hollowed out in the second fingerprint recognition area 221.

[0195] The first support layer 212 is disposed on the back surface of the first display module 21, and the first support layer 212 can be used to protect and support the first display module 21. Specifically, the first support layer 212 can release the external stress applied to the first display module 21, the first support layer 212 can increase the strength of the first display module 21, better protect the first display module 2, reduce the probability of damage to the first display module 21 and the internal wiring under the action of stress, and improve the reliability and yield of the first display module 21.

[0196] It should be clarified here that the first support layer 212 is opaque. Therefore, the first support layer 212 is hollowed out in the first fingerprint recognition area 211.

[0197] Similarly, the second support layer 222 is disposed on the back surface of the second display module 22, and the second support layer 222 can be used to protect and support the second display module 22. Therefore, the second support layer 222 is hollowed out in the second fingerprint recognition area 221.

[0198] In some embodiments, the display module further includes a light-transmitting support member.

[0199] Specifically, as Figure 11D shown, the first display module 21 further includes a first light-transmitting support member 213. The first light-transmitting support member 213 is disposed in the hollowed-out area of the first support layer 212. The second display module 22 further includes a second light-transmitting support member 223. The second light-transmitting support member 223 is disposed in the hollowed-out area of the second support layer 222.

[0200] The first light-transmitting support member 213 can be used to support and protect the first display module 21 in the first fingerprint recognition area 211, and the second light-transmitting support member 223 can be used to support and protect the second display module 22 in the second fingerprint recognition area 221, so that the first display module 21 in the first fingerprint recognition area 211 or the second display module 22 in the second fingerprint recognition area 221 is damaged.

[0201] The materials of the first light-transmitting support member 213 and the second light-transmitting support member 223 can include glass or other transparent polymer materials, which do not affect the fingerprint recognition function of the fingerprint recognition module 10 for the first display module 21 or the second display module 22 while supporting and protecting the display module.

[0202] In some embodiments, as Figure 12A shown, the display terminal 1 further includes a cover plate 5.

[0203] Exemplarily, as Figure 12A shown, a cover plate 5 is provided on the display surface of the first display module 21 and the display surface of the second display module 22. The cover plate 5 can be used to protect and support the display surfaces of the first display module 21 and the second display module 22.

[0204] In this way, the cover plate 5 can be used to support the first display module 21 and the second display module 22, especially the first fingerprint recognition area 211 of the first display module 21 and the second fingerprint recognition area 221 of the second display module 22, and there is no need to additionally provide a first light-transmitting support member 213 or a second light-transmitting support member 223.

[0205] Alternatively, exemplarily, as Figure 12B shown, the cover plate 5 is only provided on the display surface of the first display module 21, while the cover plate 5 is not provided on the display surface of the second display module 22.

[0206] In this way, as Figure 12B shown, the second display module 22 further includes a second light-transmitting support member 223. The second light-transmitting support member 223 is disposed in the hollow area of the second support layer 222. The second light-transmitting support member 223 can be used to support the second display module 22 of the second fingerprint recognition area 221.

[0207] Alternatively, exemplarily, as Figure 12C shown, the cover plate 5 is only provided on the display surface of the second display module 22, while the cover plate 5 is not provided on the display surface of the first display module 21.

[0208] In this way, as Figure 12C shown, the first display module 21 further includes a first light-transmitting support member 213. The first light-transmitting support member 213 is disposed in the hollow area of the first support layer 212. The first light-transmitting support member 213 can be used to support the first display module 21 of the first fingerprint recognition area 211.

[0209] In some embodiments, as Figure 13 shown, the display terminal 1 further includes a first seal 214 and a second seal 224.

[0210] The first seal 214 is disposed between the encapsulation case 300 and the first display module 21, and the second seal 224 is disposed between the encapsulation case 300 and the second display module 22.

[0211] The first seal 214 and the second seal 224 can be used to form a sealed cavity between the encapsulation case 300 and the first display module 21 and the second display module 22, avoid light leakage of fingerprint light and reduce the accuracy of fingerprint recognition, and at the same time prevent dust from entering the interior of the display terminal 1.

[0212] In the first embodiment of the present application, the fingerprint recognition module 10 provided can reflect the incident light in the first direction x to the fingerprint sensing component 200 through the first reflecting surface 101 of the reflecting component 100, thereby realizing the fingerprint recognition function in the first direction x. The incident light in the second direction y can be reflected to the fingerprint sensing component 200 through the second reflecting surface 102 of the reflecting component 100, thereby realizing the fingerprint recognition function in the second direction y. Compared with the related art where a fingerprint recognition module 10 needs to be provided under each display module, the fingerprint recognition module 10 provided in the embodiment of the present application can utilize the same fingerprint sensing component 200 to realize the fingerprint recognition functions in two different directions. That is to say, the fingerprint recognition module 10 provided in the embodiment of the present application can utilize the same fingerprint sensing component 200 to respectively realize the fingerprint recognition functions of two display modules, which can effectively reduce the cost of the fingerprint recognition module 10.

[0213] In addition, the reflecting component 100 can effectively change the fingerprint incident light in the fingerprint recognition module 10, that is, change the propagation direction of the incident light in the first direction x or the propagation direction of the incident light in the second direction y, thereby being able to reduce the size of the fingerprint recognition module 10.

[0214] Embodiment Two

[0215] The main difference between Embodiment Two and Embodiment One lies in the different reflecting component 100.

[0216] In some embodiments, as Figure 14 shown, the reflecting component 100 includes a first reflecting surface 101, a second reflecting surface 102, and a rotating member 103.

[0217] Among them, the first reflecting mirror 110 where the first reflecting surface 101 is located is fixed. The second reflecting mirror 120 where the second reflecting surface 102 is located is fixedly connected to the rotating member 103, and the rotating member 103 can drive the second reflecting mirror 120 to rotate.

[0218] It should be clarified here that the display terminal 1 further includes a controller for controlling the rotating member 103. The rotating member 103 can drive the second reflecting mirror 120 to rotate through electromagnetic control, electric control motor hole control, or electric control memory metal control, etc.

[0219] In the fingerprint recognition module 10 provided in the second embodiment of the present application, as Figure 15A shown, when the fingerprint of the first display module 21 needs to be recognized, the controller of the display terminal 1 controls the rotating member 103 to rotate, and then drives the second reflecting mirror 120 to rotate through the rotation of the rotating member 103. Driven by the rotating member 103, the second reflecting mirror 120 rotates to a position where it can avoid the reflection path of the first reflecting mirror 110. For example, the second reflecting mirror 120 rotates to a position parallel to the second display module 22.

[0220] As Figure 15B shown, when it is necessary to identify the fingerprint of the second display module 22, the controller of the display terminal 1 controls the rotating member 103 to rotate, and then drives the second mirror 120 to rotate through the rotation of the rotating member 103. Driven by the rotating member 103, the second mirror 120 rotates to a position where the plane where the second mirror 120 is located intersects with the second display module 22, and the second mirror 120 faces the second display module 22.

[0221] In this way, the light reflected by the first mirror 110 does not pass through the second mirror 120. Therefore, there is no need to provide a first film layer on the first reflecting surface 101, nor is there a need to provide a second film layer on the second reflecting surface 102.

[0222] Embodiment III

[0223] The main difference between Embodiment III and Embodiment II lies in the different reflecting components 100.

[0224] In some embodiments, as Figure 16 shown, the reflecting component 100 includes a reflecting surface 104 and a rotating member 103.

[0225] Among them, the reflecting surface 104 is fixedly connected to the rotating member 103, and the rotating member 103 can drive the reflecting surface 104 to rotate, so as to reflect the incident light in the first direction x towards the fingerprint sensing component 200, or reflect the incident light in the second direction y towards the fingerprint sensing component 200. The fingerprint sensing component 200 performs fingerprint identification according to the incident light in the first direction x or the second direction y received.

[0226] The fingerprint identification module 10 provided in Embodiment III of the present application, as Figure 17A shown, when it is necessary to identify the fingerprint of the first display module 21, the reflecting surface 104 is driven by the rotating member 103 to rotate to a position where the plane where the reflecting surface 104 is located intersects with the first display module 21, and the reflecting surface 104 faces the first display module 21.

[0227] As Figure 17B shown, when it is necessary to identify the fingerprint of the second display module 22, the reflecting surface 104 is driven by the rotating member 103 to rotate to a position where the plane where the reflecting surface 104 is located intersects with the second display module 22, and the reflecting surface 104 faces the second display module 22.

[0228] In this way, only one reflecting surface 104 needs to be provided. According to the difference of the display module where the fingerprint needs to be set, the rotating member 103 is controlled to drive the reflecting surface 104 to rotate to different positions, thereby realizing the fingerprint identification function.

[0229] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application shall be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims described above.

Claims

1. A fingerprint recognition module, characterized in that, Comprising: A reflection component, including a first reflection surface and a second reflection surface; The plane where the first reflection surface is located intersects with the plane where the second reflection surface is located; A fingerprint sensing component; The first reflection surface is used to reflect incident light in a first direction towards the fingerprint sensing component, and the second reflection surface is used to reflect incident light in a second direction towards the fingerprint sensing component; the first direction and the second direction are different; the fingerprint sensing component is used to perform fingerprint recognition based on the reflected light of the first reflection surface or the reflected light of the second reflection surface received; The second reflection surface is disposed between the first reflection surface and the fingerprint sensing component; the first reflection surface includes a first film layer; the second reflection surface includes a second film layer; the first film layer and the second film layer are different; after the incident light is reflected by the first reflection surface, the incident light changes the wavelength band or the polarization direction of the incident light through the first film layer, and after the incident light is reflected by the second reflection surface, the incident light changes the wavelength band or the polarization direction of the incident light through the second film layer, so that the light reflected by the first reflection surface and the second reflection surface is light of different wavelength bands or light of different polarization directions.

2. The fingerprint recognition module according to claim 1, characterized in that, The reflection component further includes a rotating member, and the rotating member is used to drive the second reflection surface to rotate.

3. The fingerprint recognition module according to claim 1, wherein The reflection component is a prism.

4. The fingerprint recognition module according to claim 1, characterized in that, The reflection component includes a first reflector and a second reflector; The first reflector includes the first reflection surface, and the second reflector includes the second reflection surface.

5. The fingerprint recognition module according to claim 4, wherein, The second reflector is disposed between the first reflector and the fingerprint sensing component.

6. The fingerprint recognition module according to claim 4 or 5, characterized in that One surface of the first reflector and one surface of the second reflector are attached together.

7. The fingerprint recognition module according to claim 4 or 5, characterized in that, One edge of the first reflector and one edge of the second reflector are attached together.

8. The fingerprint recognition module according to claim 4, wherein, The reflection component further includes a fixing member, and the first reflector and the second reflector are disposed within the fixing member; the fixing member is used to fix the first reflector and the second reflector together.

9. The fingerprint recognition module according to claim 1, wherein The first reflection surface is one of a plane, a spherical surface or a free-form surface; And / or, the second reflection surface is one of a plane, a spherical surface or a free-form surface.

10. The fingerprint recognition module according to claim 1, wherein The fingerprint recognition module further includes a packaging shell, and both the reflection component and the fingerprint sensing component are disposed within the packaging shell; The packaging shell includes a first opening and a second opening, and the incident light in the first direction is incident on the first reflection surface through the first opening; the incident light in the second direction is incident on the second reflection surface through the second opening.

11. The fingerprint recognition module according to claim 10, wherein, The fingerprint recognition module further includes a first lens group, and the first lens group is disposed at the first opening; And / or, the fingerprint recognition module further includes a second lens group, and the second lens group is disposed at the second opening.

12. The fingerprint recognition module according to claim 1, wherein, The fingerprint sensing component includes: a third lens group and a sensor; The third lens group is disposed between the reflection component and the sensor; the third lens group is used to converge the reflected light of the first reflection surface or the reflected light of the second reflection surface.

13. A fingerprint recognition module, characterized in that, Comprising: A reflection component, including a reflection surface and a rotating member; The reflecting surface includes a first film layer and a second film layer; the first film layer is different from the second film layer; A fingerprint sensing component; the rotating member is used to drive the reflecting surface to rotate so as to reflect incident light in a first direction towards the fingerprint sensing component; or reflect incident light in a second direction towards the fingerprint sensing component; The first direction is different from the second direction; the fingerprint sensing component is used to perform fingerprint recognition based on the incident light in the first direction or the incident light in the second direction received; the second film layer is disposed between the first film layer and the fingerprint sensing component; the incident light in the first direction passes through the first film layer to change the wavelength band of the incident light or change the polarization direction of the incident light, and the incident light in the second direction passes through the second film layer to change the wavelength band of the incident light or change the polarization direction of the incident light, so that the light reflected by the first film layer and the second film layer is light of different wavelength bands or light of different polarization directions.

14. A display terminal, characterized in that, Comprising: A first display module and a second display module disposed opposite to each other; The display surface of the first display module and the display surface of the second display module are arranged back to back; The fingerprint recognition module according to any one of claims 1-13; The fingerprint recognition module is disposed between the first display module and the second display module; the first display module includes a first fingerprint recognition area; the second display module includes a second fingerprint recognition area; The first display module provides incident light in a first direction to the fingerprint recognition module through the first fingerprint recognition area, and the second display module provides incident light in a second direction to the fingerprint recognition module through the second fingerprint recognition area.

15. The display terminal according to claim 14, wherein The first display module includes a first support layer; the first support layer is hollowed out in the first fingerprint recognition area; the second display module includes a second support layer; the second support layer is hollowed out in the second fingerprint recognition area.

16. The display terminal according to claim 15, characterized in that, The second display module includes a light-transmitting support member; the light-transmitting support member is disposed in the hollowed-out area of the second support layer.

17. The display terminal according to claim 15, wherein, The display terminal further includes a first sealing member and a second sealing member; the fingerprint recognition module further includes a packaging shell; The first sealing member is disposed between the packaging shell and the first display module, and the second sealing member is disposed between the packaging shell and the second display module; the first sealing member and the second sealing member are used to form a sealed cavity between the packaging shell and the first display module and the second display module.

Images