Fingerprint identification component, display screen component and terminal

Abstract

The present disclosure relates to a fingerprint identification assembly, a display screen assembly and a terminal. The fingerprint identification assembly of the present disclosure comprises: a fingerprint identification module comprising a fingerprint identification area for identifying a to-be-identified fingerprint; and a first vibration element arranged close to the fingerprint identification area, the first vibration element being configured to generate vibration in the case that the fingerprint identification module identifies the to-be-identified fingerprint or is about to identify the to-be-identified fingerprint. The present disclosure arranges the first vibration element close to the fingerprint identification area of the fingerprint identification module, and generates vibration through the first vibration element. When the user's finger feels the vibration, the user can be indicated the position of the fingerprint identification area through such touch feedback, so that the fingerprint identification can be accurately completed only by finger touch.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of fingerprint identification, and in particular, to a fingerprint identification assembly, a display screen assembly, and a terminal. BACKGROUND

[0002] With the development of technology, the display range of a display screen is increased to the edge position of a terminal device, forming a full-screen arrangement. In the overall design of a full screen, some sensors, such as a fingerprint identification sensor, are arranged under the display screen, forming a solution of under-screen optical fingerprint identification.

[0003] In such an arrangement, since the cover plate on the display screen is flat and integral, the under-screen fingerprint identification cannot use a conventional structure to limit and prompt the user to the correct position of the fingerprint identification area. The way adopted in the related art is to light a light spot on the screen, which can both supplement light for the under-screen fingerprint identification and prompt the user to the position of the fingerprint identification area. SUMMARY

[0004] To overcome the problems in the related art, the present disclosure provides a fingerprint identification assembly, a display screen assembly, and a terminal.

[0005] According to a first aspect of an embodiment of the present disclosure, a fingerprint identification assembly is provided, comprising: a fingerprint identification module configured to identify a fingerprint; and a first vibration element arranged close to the fingerprint identification module, the first vibration element configured to generate vibration in a case where the fingerprint identification module identifies a to-be-identified fingerprint or is about to identify a to-be-identified fingerprint.

[0006] In an embodiment, the first vibration element is arranged above and / or around the fingerprint identification area.

[0007] In an embodiment, the first vibration element comprises a light-transmitting material.

[0008] In an embodiment, the first vibration element comprises a piezoelectric material.

[0009] In an embodiment, the first vibration element is a transparent piezoelectric ceramic.

[0010] In an embodiment, the first vibration element is a thin-film structure.

[0011] In an embodiment, the fingerprint identification assembly further comprises a second vibration element arranged around the first vibration element.

[0012] In an embodiment, the vibration intensity and / or vibration frequency of the first vibration element and the second vibration element are different.

[0013] In an embodiment, the first vibration element has a vibration intensity greater than that of the second vibration element; and / or the first vibration element has a vibration frequency greater than that of the second vibration element.

[0014] According to a second aspect of the embodiments of the present disclosure, a display screen assembly is provided, comprising the fingerprint identification assembly according to any one of the preceding embodiments; and a display screen; wherein the first vibration element is attached to the back of the display screen or to the side of the first vibration element away from the display screen.

[0015] In an embodiment, a groove is arranged at the position corresponding to the fingerprint identification assembly on the back of the display screen, and the first vibration element is arranged in the groove.

[0016] In an embodiment, the projection area of the fingerprint identification area on the plane where the display screen is located is a fingerprint identification sensing area; and the shape of the projection of the first vibration element on the plane where the display screen is located is one of the following: a circle covering at least part of the fingerprint identification sensing area; a rectangle covering at least part of the fingerprint identification sensing area; a rhombus covering at least part of the fingerprint identification sensing area; a ring surrounding the fingerprint identification sensing area; and a strip arranged on the side of the fingerprint identification sensing area.

[0017] According to a third aspect of the embodiments of the present disclosure, a terminal is provided, comprising the display screen assembly according to any one of the preceding embodiments.

[0018] According to a fourth aspect of the embodiments of the present disclosure, a terminal is provided, comprising the fingerprint identification assembly according to any one of the preceding embodiments, and further comprising a middle frame or a back cover, and the first vibration element is attached to the middle frame or the back cover.

[0019] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects: the first vibration element is arranged close to the fingerprint identification area of the fingerprint identification module according to the present disclosure, and vibration is generated by the first vibration element. When the user's finger feels the vibration, the user can be indicated the position of the fingerprint identification area through such touch feedback, so that the fingerprint identification can be accurately completed only by finger touch.

[0020] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure.

[0022] Figure 1 is a structural diagram of a display screen assembly according to an exemplary embodiment.

[0023] Figure 2 is a structural diagram of a fingerprint identification assembly according to an exemplary embodiment.

[0024] Figure 3 is a structural diagram of a fingerprint identification assembly according to another exemplary embodiment.

[0025] Figure 4 is a structural diagram of a fingerprint identification assembly according to another exemplary embodiment.

[0026] Figure 5 is a top view structural diagram of a first vibration element according to an exemplary embodiment.

[0027] Figure 6 is a top view structural diagram of a first vibration element according to another exemplary embodiment.

[0028] Figure 7 is a top view structural diagram of a first vibration element according to another exemplary embodiment.

[0029] Figure 8 is a top view structural diagram of a first vibration element according to another exemplary embodiment.

[0030] Figure 9 is a top view structural diagram of a first vibration element according to another exemplary embodiment.

[0031] Figure 10 is a structural diagram of a fingerprint identification assembly according to another exemplary embodiment.

[0032] Figure 11 is a top view structural diagram of a first vibration element according to another exemplary embodiment.

[0033] Figure 12 is a top view structural diagram of a first vibration element according to another exemplary embodiment.

[0034] Figure 13 is a structural diagram of a terminal according to an exemplary embodiment.

[0035] Figure 14 is a structural diagram of a display screen assembly according to an exemplary embodiment. DETAILED DESCRIPTION

[0036] The exemplary embodiments will be described in detail below with reference to the accompanying drawings. In the following description, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Instead, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0037] With the development of technology, the display range of the display screen is increased to the edge position of the terminal device, forming a full-screen arrangement. In the overall design of the full screen, some sensors such as the fingerprint identification sensor are arranged below the display screen, forming a screen-under optical fingerprint solution.

[0038] In such an arrangement, the flat and integral glass cover plate on the display screen causes the screen-under fingerprint to be unable to use the conventional structure to limit the correct position of the fingerprint identification area for the user. The way adopted in the related art is to light a light spot on the screen, which not only supplements light for the screen-under fingerprint, but also indirectly prompts the user of the position of the fingerprint identification area. However, in such a solution, the user needs to lower his head to look at the screen, and cannot directly and accurately unlock by only touching with the finger.

[0039] Generally, the visual effect still has the problems of pressing bias, incomplete pressing, and even in some cases the user does not have the condition to look at the screen, and at the same time needs to improve the success rate of one pressing.

[0040] In the related art, the screen is generally lighted with a light spot, which not only supplements light for the screen-under fingerprint, but also indirectly prompts the user of the position of the fingerprint identification area, but the user needs to lower his head to look at the screen, and cannot touch the fingerprint identification area by blind operation of the finger.

[0041] In addition, in the optical fingerprint identification mode, when the user presses the screen with the finger, the display screen emits light to illuminate the finger area, the reflected light of the illuminated fingerprint returns to the sensor closely below the display screen through the gap between the screen pixels, and finally the formed image is compared and analyzed with the image stored in the database to identify and judge.

[0042] In order to clearly identify the fingerprint image, the reflected light needs to have a certain brightness, which can be realized by increasing the brightness of the emitted light or increasing the brightness of the reflected light. In a dark environment, in order to ensure the accurate identification of the fingerprint identification module, the brightness of the emitted light is greatly increased, which results in a high brightness of the light spot prompting the user of the fingerprint identification area, and causes the user to have a dazzling feeling when using at night.

[0043] In view of the above technical problems, the present disclosure provides a fingerprint identification assembly which can identify the fingerprint by blind operation of the finger. Figure 1This is a schematic diagram illustrating the structure of a display assembly according to an exemplary embodiment, such as... Figure 1 As shown, the fingerprint recognition component 100 of this disclosure includes a fingerprint recognition module 102 and a first vibration element 101. The first vibration element 101 is used to generate vibration when the fingerprint recognition module recognizes or is about to recognize a fingerprint to be tested.

[0044] In this disclosure, the fingerprint recognition module 102 is used to recognize fingerprints. The fingerprint recognition module 102 of this disclosure can be an optical fingerprint recognition module, which emits light through a light-emitting element to illuminate the finger area. The reflected light illuminating the fingerprint returns to the sensor that is in close contact with the fingerprint recognition module. The final image is then compared and analyzed with images stored in a database for recognition and judgment.

[0045] The fingerprint recognition module 102 disclosed herein can be applied to a terminal, for example, it can be disposed below a display screen. The light-emitting element can be a light-emitting element of the display screen. When the display screen is a flexible display screen, such as an OLED (Organic Light-Emitting Diode), the light-emitting element can be a self-emissive layer of the display screen.

[0046] When the display screen is a rigid display screen, such as an LCD (Liquid Crystal Display), the light-emitting element can be the backlight module of the LCD screen.

[0047] In this disclosure, the fingerprint recognition module 102 can also be a capacitive fingerprint recognition module, which can distinguish between the ridges and valleys of a fingerprint based on the capacitance values ​​formed on the capacitive sensor, and generate fingerprint image data. The final image is then compared and analyzed with images stored in a database for identification and judgment.

[0048] In this disclosure, the fingerprint recognition module 102 can also be an ultrasonic fingerprint recognition module, which uses the penetrability of ultrasound to penetrate the material covering the fingerprint sensor and the dermis layer of the finger skin, and then uses the density difference between the ridges (skin) and valleys (air) on the surface of the finger skin to draw a three-dimensional detailed image of the fingerprint.

[0049] In this disclosure, such as Figure 1 As shown, the first vibration element 101 can be disposed close to the fingerprint recognition area. For example, the first vibration element 101 can be disposed above the fingerprint recognition area to generate vibration.

[0050] It should be noted that the area on the fingerprint recognition module 102 used to sense and recognize fingerprints is the fingerprint recognition area. The first vibration element 101 may be disposed above the fingerprint recognition module 102.

[0051] The fingerprint identification module 102 can be provided with a packaging layer, a support and other components, which can occupy a certain area. The side of the fingerprint identification module 102 facing the fingerprint to be detected can not be the entire fingerprint identification area for transmitting and receiving signals.

[0052] For example, in some embodiments, the fingerprint identification area can be smaller than the area of the fingerprint identification module 102. In some embodiments, the fingerprint identification area can also be equal to the area of the fingerprint identification module 102.

[0053] The area of the first vibration element 101 can be consistent with the fingerprint identification module 102, so that the area of the first vibration wave 202 formed by the vibration of the first vibration element 101 can cover the fingerprint identification area.

[0054] Such a setting can determine the fingerprint identification area according to the size of the first vibration wave 202 when the user's finger identifies the first vibration wave 202, thereby improving the accuracy of the pressing position, improving the success rate of fingerprint identification, and realizing blind operation to improve the user experience.

[0055] However, the present disclosure is not limited thereto, and can also be provided on the side of the fingerprint identification module 102. Figure 2 is a structural schematic diagram of a fingerprint identification assembly according to an exemplary embodiment, as Figure 2 As shown, the first vibration element 101 and the fingerprint identification module 102 are located in the same plane. The first vibration element 101 is provided on the side of the fingerprint identification area, that is, can be provided on the side of the fingerprint identification module 102.

[0056] Such a setting reduces the thickness of the fingerprint identification assembly 100 because the first vibration element 101 and the fingerprint identification module 102 are located in the same plane. The fingerprint identification assembly 100 thus arranged is also beneficial to reduce the thickness of the terminal when applied to the terminal.

[0057] It should be noted that the first vibration element 101 can be provided around the fingerprint identification module 102, or can be provided on only one side of the fingerprint identification module 102. It can be specifically arranged according to the setting requirement, as long as it can achieve the purpose of indicating the fingerprint identification area.

[0058] Such a setting makes the fingerprint identification area located between the areas defined by the first vibration element 101 through the first vibration wave 202. That is, when the user's finger senses the vibration, the position of the finger is not entirely in the fingerprint identification area, but can be around the fingerprint identification area or on one side of the fingerprint identification area.

[0059] When the user's finger senses the first vibration wave 202, the range of the finger placement can be adjusted, and then the fingerprint identification area is determined, and the fingerprint is pressed and identified for operation.

[0060] In some embodiments, the first vibration element 101 can be disposed above the fingerprint identification module 102 and also on the side of the fingerprint identification module 102. Figure 3 is a structural schematic diagram of a fingerprint identification assembly according to another exemplary embodiment. As shown in Figure 3 The first vibration element 101 is above the fingerprint identification module 102.

[0061] In addition, the first vibration element 101 exceeds the boundary of the fingerprint identification module 102 and partially overlaps the fingerprint identification module 102. In such a configuration, the first vibration wave 202 generated by the first vibration element 101 does not completely cover the fingerprint identification area, but also occupies a part of the fingerprint identification area.

[0062] Such a configuration can increase the area covered by the first vibration wave 202 generated by the first vibration element 101, and can indicate to the user's finger in a larger range.

[0063] It should be noted that in the present disclosure, there is no specific limitation on the arrangement relationship between the first vibration element 101 and the fingerprint identification module 102. The first vibration element 101 can be connected to the fingerprint identification module 102, or can not be connected to the fingerprint identification module 102.

[0064] Figure 4 is a structural schematic diagram of a fingerprint identification assembly according to another exemplary embodiment. As shown in Figure 4 The first vibration element 101 can be disposed above the fingerprint identification module 102 and does not need to be connected to the fingerprint identification module.

[0065] Generally, the fingerprint identification assembly 100 can be applied to a terminal, for example, can be applied to a mobile phone, a tablet computer, a wearable device, and the like. When the fingerprint identification assembly 100 is applied to a terminal, it can be disposed below a display screen 200 as an under-screen fingerprint identification module.

[0066] As shown in Figure 1 When the fingerprint identification assembly 100 is disposed below the display screen 200 as an under-screen fingerprint identification module, the first vibration element 101 is attached to the back of the display screen 200. In this way, the vibration can be transmitted to the front of the display screen 200 to be recognized by the user's finger.

[0067] It should be noted that the display surface of the display screen 200 is the outside of the terminal, which can be referred to as the front. The surface opposite to the display surface of the display screen 200 is the back of the display screen 200, which is located inside the terminal.

[0068] When the fingerprint identification assembly 100 is located at the back of the display screen 200, the position on the display screen 200 corresponding to the fingerprint identification area is the fingerprint identification sensing area 201. That is, the projection area of the fingerprint identification area on the plane where the display screen 200 is located is the fingerprint identification sensing area 201.

[0069] The first vibration element 101 transmits vibration to the front of the display screen 200, and the first vibration wave 202 is formed on the front of the display screen 200. Generally, the front of the display screen 200 is also provided with a cover plate, for example, a glass cover plate, for protecting the display screen 200.

[0070] When the user's finger touches or slides on the cover plate, the first vibration wave 202 can be sensed. The user can determine the position of the fingerprint identification sensing area 201 by identifying the first vibration wave 202. The fingerprint identification sensing area 201 can be accurately identified only by the touch sensing of the finger, without the need for the user to observe with the eyes, so as to complete the fingerprint identification.

[0071] It should be noted that the intensity of the first vibration wave 202 generated by the first vibration element 101 can be specifically set, for example, by pulse control, to freely change the amplitude size and interval, and to exhibit various vibration modes and intensities.

[0072] It should be noted that such vibration is not to produce strong vibration on the cover plate, but to produce a feeling of local blockage, similar to touching sandpaper or a surface with varying friction.

[0073] In this way, a certain resistance can be generated on the smooth surface of the cover plate, for example, surface blockage caused by vibration, and such resistance can guide the user that these positions are effective areas for fingerprint identification.

[0074] Through the above embodiment, the first vibration element 101 is arranged above or on the side of the fingerprint identification module 102, and vibration is generated by the first vibration element 101. When the user's finger feels the vibration, the user can be indicated the specific position of the fingerprint identification area through such touch feedback, so that the fingerprint identification can be accurately completed only by the touch of the finger.

[0075] In the exemplary embodiment of the present disclosure, the first vibration element 101 comprises a light-transmitting material, and preferably, the light-transmitting material has a light transmittance greater than or equal to 90%, for example, can be transparent. In such a setting, when the first vibration element 101 is arranged above the fingerprint identification module 102, and the fingerprint identification module 102 is an optical fingerprint identification module, the first vibration element 101 will not block light.

[0076] Such a setting is advantageous to avoid the first vibration element 101 blocking light, so as to affect the correct identification of the optical fingerprint identification module on the fingerprint.

[0077] In the exemplary embodiments of the present disclosure, the first vibration element 101 can include a piezoelectric material, for example, a piezoelectric crystal, a piezoelectric ceramic, or a piezoelectric polymer.

[0078] When the piezoelectric material is polarized in an electric field, the material is deformed due to the displacement of the charge center, i.e., the piezoelectric body is deformed under the action of an external electric field.

[0079] In the present disclosure, the first vibration element 101 can be a piezoelectric ceramic, for example, a transparent piezoelectric ceramic. The piezoelectric ceramic refers to a polycrystal obtained by a solid phase reaction and a sintering process of powder particles.

[0080] The piezoelectric ceramic converts voltage or current excitation into mechanical vibration and transmits the vibration to the skin through a medium. The vibration has the characteristic of instantaneous reaction, and the amplitude and interval can be freely changed through pulse control, so that various vibration modes and intensities can be finely presented.

[0081] In the present disclosure, the first vibration element 101 can be a thin film structure, for example, a piezoelectric ceramic thin film. The first vibration element 101 in the thin film structure is convenient to attach to the back of the display screen 200, and the thickness is reduced, which does not increase the thickness of the fingerprint recognition module.

[0082] For example, in some embodiments, there is a certain gap between the display screen and the fingerprint recognition module, which can be used to set the first vibration element 101 in the thin film structure.

[0083] In the exemplary embodiments of the present disclosure, the shape of the first vibration element 101 includes one or more of the following: a circular shape, a rectangular shape, a diamond shape, a ring shape, and a strip shape.

[0084] Figure 5 is a top view structural schematic diagram of a first vibration element according to an exemplary embodiment, as shown in Figure 5 As shown, the projection of the first vibration element 101 on the plane where the display screen 200 is located can be a hollow rectangle. That is, the first vibration wave 202 generated by the first vibration element 101 forms a hollow rectangle, and when the user's finger senses the first vibration wave 202, the fingerprint recognition area can be identified, and then the fingerprint recognition operation can be quickly performed.

[0085] Figure 6 is a top view structural schematic diagram of a first vibration element according to another exemplary embodiment, as shown in Figure 6As shown, the projection of the first vibration element 101 on the plane of the display screen 200 can be a rectangle. That is, the first vibration wave 202 generated by the first vibration element 101 forms a rectangle, and when the user's finger senses the first vibration wave 202, the fingerprint recognition area can be identified, and then the fingerprint recognition operation can be rapidly performed.

[0086] Figure 7 is a top view structural schematic diagram of a first vibration element according to another exemplary embodiment, as shown in Figure 7 As shown, the projection of the first vibration element 101 on the plane of the display screen 200 can be a hollow ring. That is, the first vibration wave 202 generated by the first vibration element 101 forms a hollow ring, and when the user's finger senses the first vibration wave 202, the fingerprint recognition area can be identified, and then the fingerprint recognition operation can be rapidly performed.

[0087] Figure 8 is a top view structural schematic diagram of a first vibration element according to another exemplary embodiment, as shown in Figure 8 As shown, the projection of the first vibration element 101 on the plane of the display screen 200 can be a circle. That is, the first vibration wave 202 generated by the first vibration element 101 forms a circle, and when the user's finger senses the first vibration wave 202, the fingerprint recognition area can be identified, and then the fingerprint recognition operation can be rapidly performed. The formed circle can cover at least part of the fingerprint recognition sensing area 201.

[0088] According to the foregoing embodiments, when the first vibration element 101 is a circular or rectangular area, the blocking feeling generated by the vibration area is clearer because it is a full-area region, prompting the user to feel the position. The formed rectangle can cover at least part of the fingerprint recognition sensing area 201.

[0089] When the first vibration element 101 is a hollow rectangle or a hollow ring, the ring-shaped vibration only generates a vibration blocking feeling in the area with the vibration ring, which can also prompt the user that the ring is the effective area for fingerprint recognition. Although the piezoelectric ceramic film of the ring shape has a smaller vibration blocking area than the planar ceramic film, its effect can basically achieve the function of prompting the user to know where the effective fingerprint area in the ring is, for example, the touch feeling is like touching a metal ring, and the cost and area of the film material are proportional, and the cost of the ring shape is lower. The formed ring area can surround the fingerprint recognition sensing area 201.

[0090] It should be noted that the shape of the first vibration element 101 of the present disclosure is not limited to the above few, and according to different settings of different terminals, the shape of the first vibration element 101 can also be other regular or irregular shapes.

[0091] Figure 9is a schematic view of other shape structures of a first vibration element according to another exemplary embodiment, as shown in Figure 9 Figure 9 The first vibration element 101 in a of the present embodiment is in a rhombus shape in the projection of the display screen 200. The formed rhombus can cover at least part of the fingerprint identification sensing area 201.

[0092] Figure 9 The first vibration element 101 in b of the present embodiment is in a hollow rhombus shape in the projection of the display screen 200.

[0093] As shown in Figure 9 , the first vibration element 101 can also be in a bar shape in the projection of the display screen 200, for example, can include two bar shapes. That is, as mentioned above, the first vibration element 101 is arranged on both sides of the fingerprint identification sensing area 201. The two bar-shaped first vibration elements 101 can be arranged in up-down or left-right.

[0094] Figure 9 The first vibration element 101 in c of the present embodiment is two bar-shaped vibration devices arranged in left-right. Figure 9 The first vibration element 101 in d of the present embodiment is two bar-shaped vibration devices arranged in left-up and left-down.

[0095] Figure 9 The first vibration element 101 in e of the present embodiment is in a triangle shape in the projection of the display screen 200. Figure 9 The first vibration element 101 in f of the present embodiment is in a polygon shape in the projection of the display screen 200. Figure 9 The first vibration element 101 in g of the present embodiment is in an elliptical shape in the projection of the display screen 200.

[0096] As shown in Figure 9 Figure 9 The first vibration element 101 in h of the present embodiment is also in two circles in the projection of the display screen 200. Such arrangement can increase the area of the first vibration element 101, and can also increase the vibration area of the first vibration wave 202. Since the user does not look at the display screen with eyes, when the user's finger operates on the display screen, the position of the finger can be far away from the fingerprint display area.

[0097] Increasing the vibration area of the first vibration wave 202 can make the first vibration wave 202 be sensed when the user's finger is far away from the fingerprint display area. Such arrangement is beneficial for the user to identify the fingerprint identification area faster, and thus to operate the fingerprint identification faster.

[0098] It should be noted that when the fingerprint identification assembly 100 is applied to a terminal, it is not limited to be arranged below the display screen. Figure 10 ​​is a structural schematic diagram of a fingerprint identification assembly according to another exemplary embodiment, as Figure 10 As shown, the fingerprint identification assembly 100 can also be arranged below the back cover 400 of the terminal.

[0099] In some embodiments, arranging the fingerprint identification module 102 inside the back cover 400 of the terminal can increase the position on the terminal where fingerprint unlocking can be arranged, facilitating the use of the user. For example, in some use states, the fingers of the user placed on the back of the terminal are more likely to move.

[0100] As in the foregoing embodiments, when the fingerprint identification assembly 100 can also be arranged below the back cover 400 of the terminal, the first vibration element 101 can be attached to the back of the back cover 400. In this way, the vibration can be transmitted to the outside of the back cover 400 to be recognized by the fingers of the user.

[0101] When the fingerprint identification assembly 100 is located on the back of the back cover 400, the area on the back cover 400 corresponding to the fingerprint identification module 102 is the fingerprint identification area.

[0102] The first vibration element 101 transmits the vibration to the front of the back cover 400, and the first vibration wave 202 is formed on the front of the back cover 400.

[0103] When the fingers of the user touch the back cover 400 or slide on the back cover 400, the first vibration wave 202 can be sensed. The user can determine the position of the fingerprint identification sensing area 201 by recognizing the first vibration wave 202. The user can accurately identify the fingerprint identification sensing area 201 by touch sensing only through the eyes, to complete the fingerprint identification.

[0104] It should be noted that the fingerprint identification assembly 100 can also be arranged on the back of the middle frame of the terminal. For example, the fingerprint identification assembly is arranged on the side of the terminal.

[0105] In the exemplary embodiments of the present disclosure, the fingerprint identification assembly 100 further comprises a second vibration element 103 arranged around the fingerprint identification area, and the second vibration element 103 is arranged around the first vibration element 101.

[0106] The second vibration element 103 can include piezoelectric material, for example, piezoelectric crystal, piezoelectric ceramic or piezoelectric polymer.

[0107] Figure 11 is a top view structural schematic diagram of a first vibration element according to another exemplary embodiment, as Figure 11 As shown, the second vibration element 103 can be a plurality of strips. The second vibration element 103 is arranged around the first vibration element 101 and diverges away from the first vibration element 101.

[0108] This configuration increases the area of ​​the first vibration element 101 and also the vibration area of ​​the first vibration wave 202. Since the user is not looking at the display screen, when the user's finger operates on the display screen, the finger may be located far from the fingerprint display area.

[0109] For example, when a user's finger is near the edge of the terminal, the second vibration wave generated by the second vibration element 103 can be sensed. When the user senses the second vibration wave distributed in a strip shape, the user knows that they are away from the fingerprint recognition area.

[0110] Simultaneously, users can slide their fingers in accordance with the approach of the second vibration wave. When a user's finger slides onto the first vibration wave generated by the first vibration element 101, the user can identify the fingerprint recognition area.

[0111] Figure 12 This is a top view schematic diagram of a first vibrating element according to another exemplary embodiment, such as... Figure 12 As shown, the second vibrating element 103 can also be ring-shaped. The annular area of ​​the second vibrating element 103 is larger than the area of ​​the first vibrating element 101.

[0112] Similarly, this configuration can increase the area of ​​the first vibration element 101 and also increase the vibration area of ​​the first vibration wave 202. Since the user is not looking at the display screen, when the user's finger operates on the display screen, the position of the finger may be far away from the fingerprint display area.

[0113] In an exemplary embodiment of this disclosure, the vibration intensities of the first vibration element 101 and the second vibration element 103 are different. For example, the vibration intensity of the first vibration element 101 may be greater than that of the second vibration element 103, or the vibration intensity of the first vibration element 101 may be less than that of the second vibration element 103.

[0114] This design allows users to easily distinguish whether the vibration wave they perceive is generated by the first vibration element 101 or the second vibration element 103, based on the different vibration intensities. This, in turn, helps users locate the fingerprint recognition area more quickly and accurately.

[0115] In the exemplary embodiments of this disclosure, the vibration frequencies of the first vibration element 101 and the second vibration element 103 are different. For example, the vibration frequency of the first vibration element 101 may be greater than the vibration frequency of the second vibration element 103, or the vibration frequency of the first vibration element 101 may be less than the vibration frequency of the second vibration element 103.

[0116] This design allows users to easily distinguish whether the vibration wave they perceive is generated by the first vibration element 101 or the second vibration element 103, based on the different vibration frequencies. This, in turn, helps users locate the fingerprint recognition area more quickly and accurately.

[0117] In this disclosure, both the first vibrating element 101 and the second vibrating element 103 can be made of piezoelectric ceramic. The first vibrating element 101 and the second vibrating element 103 can be connected to a power source and generate corresponding vibration waves according to the voltage supplied by the power source.

[0118] When the fingerprint recognition module 102 of this disclosure is applied to a terminal, it can also be connected to the terminal's power supply via a circuit board. The first vibration element 101 and the second vibration element 103 can also be managed through the terminal's motherboard. The amplitude or interval of the vibration of the first vibration element 101 and the second vibration element 103 can be controlled by the terminal's power management module using pulse waves.

[0119] Based on the same concept, this disclosure also provides a display assembly, including a fingerprint recognition assembly as described in any of the foregoing embodiments; and a display screen; wherein a first vibration element is attached to the back of the display screen; and the fingerprint recognition module is attached to the back of the display screen or to the area below the first vibration element.

[0120] like Figure 1 As shown, when the fingerprint recognition component 100 is disposed below the display screen 200 as an under-display fingerprint recognition module, the first vibration element 101 is in contact with the back of the display screen 200. This allows vibration to be transmitted to the front of the display screen 200 for recognition by the user's finger.

[0121] The first vibration element 101 transmits vibration to the front of the display screen 200, forming a first vibration wave 202 on the front of the display screen 200. Generally, the front of the display screen 200 is also provided with a cover plate, such as a glass cover plate, to protect the display screen 200.

[0122] When a user's finger touches or slides on the cover, a first vibration wave 202 is detected. By recognizing the first vibration wave 202, the user can determine the location of the fingerprint recognition sensing area 201. This allows for accurate fingerprint recognition of the fingerprint sensing area 201 without requiring the user's eyes to observe, solely through the touch of their finger, thus completing the fingerprint recognition process.

[0123] Figure 14 This is a schematic diagram illustrating the structure of a display assembly according to an exemplary embodiment, such as... Figure 14 As shown in this disclosure, a groove 203 is provided on the back of the display screen 200 at a position corresponding to the fingerprint recognition component, and the first vibration element 101 can be disposed inside the groove 203.

[0124] Such arrangement can further reduce the thickness of the display screen assembly while completing the touch feedback, and achieve the lightness and thinness of the display screen assembly. Generally, functional layers such as a bracket, an adhesive layer, an insulating layer or a buffer layer are arranged on the back of the display screen. These functional layers have a certain thickness, and a slot can be formed on these functional layers for arranging the first vibration element.

[0125] In the present disclosure, the position of the fingerprint identification module 102 for sensing and identifying the fingerprint is a fingerprint identification area, and the projection area of the fingerprint identification area on the plane of the display screen 200 is a fingerprint identification sensing area 201.

[0126] In the present disclosure, the shape of the projection of the first vibration element 101 on the plane of the display screen 200 can be a circle, and the projected circle covers at least part of the fingerprint identification sensing area 201.

[0127] In the present disclosure, the shape of the projection of the first vibration element 101 on the plane of the display screen 200 can be a rectangle, and the projected rectangle covers at least part of the fingerprint identification sensing area.

[0128] In the present disclosure, the shape of the projection of the first vibration element 101 on the plane of the display screen 200 can be a rhombus, and the projected rhombus covers at least part of the fingerprint identification sensing area.

[0129] In the present disclosure, the shape of the projection of the first vibration element 101 on the plane of the display screen 200 can be a ring, and the projected ring surrounds the fingerprint identification sensing area.

[0130] In the present disclosure, the shape of the projection of the first vibration element 101 on the plane of the display screen 200 can be a strip, and the projected strip is arranged on the side of the fingerprint identification sensing area.

[0131] Based on the same concept, the present disclosure further provides a terminal comprising the display screen assembly according to any one of the preceding embodiments.

[0132] Based on the same concept, the present disclosure further provides a terminal comprising the fingerprint identification assembly according to any one of the preceding embodiments. Figure 13 is a structural schematic diagram of a terminal according to an exemplary embodiment, as Figure 13 As shown, the terminal 10 further comprises a display screen.

[0133] The first vibration element is attached to the back of the display screen 200, and the fingerprint identification module is attached to the back of the display screen 200 or below the first vibration element.

[0134] In the exemplary embodiments of the present disclosure, the terminal 10 further comprises a middle frame or a back cover. The first vibration element is attached to the back of the middle frame or the back cover.

[0135] As shown in Figure 1 The fingerprint identification module 102 can be arranged above the support 300 of the terminal 10.

[0136] The present disclosure provides a first vibration element arranged above or around the fingerprint identification module, and generates vibration through the first vibration element. When the user's finger feels the vibration, the user can be indicated the specific position of the fingerprint identification area through such touch feedback, so that the fingerprint identification can be accurately completed only by finger touch.

[0137] It can be understood that the fingerprint identification assembly provided by the embodiments of the present disclosure includes the corresponding hardware structure and / or software module for executing each function in order to achieve the above functions. In combination with the units and algorithm steps of each example disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is driven by hardware or computer software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present disclosure.

[0138] It can be understood that "multiple" in the present disclosure refers to two or more, and other quantifiers are similar. The "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship. The singular form "a", "said" and "the" are also intended to include the plural form, unless the context clearly indicates otherwise.

[0139] It can be further understood that the terms "first", "second", etc. are used to describe various information, but these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not represent a specific order or importance. In fact, the expressions of "first", "second", etc. can be completely interchangeable. For example, the first information can also be referred to as the second information without departing from the scope of the present disclosure, and similarly, the second information can also be referred to as the first information.

[0140] It will be further understood that the terms "center", "longitudinal", "lateral", "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like, indicate orientations or positions on the drawings as specified and are for convenience only in describing the application and its embodiments, and do not indicate or imply necessary or required orientations of the device or element thereof, or mandatory or preferred orientations of the described implementations.

[0141] It will be further understood that, unless otherwise specified, "connected" includes both direct and indirect connection.

[0142] It will be further understood that, although the operations of some of the embodiments are described in a particular, sequential order for convenient presentation, unless otherwise specified, certain orders can be performed in different sequences. In some embodiments, unless otherwise specified, operations described sequentially can be performed at the same time.

[0143] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the concepts disclosed herein. It is intended that the present disclosure cover any and all variations of the present disclosure including concepts stemming from and generalizing the disclosure. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application indicated by the following claims.

[0144] It is to be understood that the application is not limited to the precise construction described and as shown in the attached drawings, and that various modifications and changes can be effected therein by those skilled in the art without departing from the scope of the application. The scope of the application is to be limited only by the appended claims.

Claims

1. A fingerprint recognition assembly, comprising: A fingerprint identification assembly for being arranged below a display screen, the fingerprint identification assembly comprising: a fingerprint identification module including a fingerprint identification area for identifying a fingerprint to be measured; a first vibration element including a piezoelectric material, the first vibration element being arranged close to the fingerprint identification area, the first vibration element being arranged above and / or around the fingerprint identification area, the first vibration element being configured to generate vibrations in a case that the fingerprint identification module identifies the fingerprint to be measured or is about to identify the fingerprint to be measured, the first vibration element being attached to a back surface of the display screen, the vibrations generated by the first vibration element being transmitted to a front surface of the display screen, a vibration area generated by the first vibration element at least partially covering the fingerprint identification area and / or the fingerprint identification area being located between the vibration areas generated by the first vibration element; a second vibration element being arranged around the first vibration element, the first vibration element and the second vibration element having different vibration intensities and / or different vibration frequencies.

2. The fingerprint identification assembly according to claim 1, wherein the first vibration element comprises a light-transmitting material.

3. The fingerprint identification assembly according to any one of claims 1 or 2, wherein the first vibration element is a transparent piezoelectric ceramic.

4. The fingerprint identification assembly according to claim 3, wherein the first vibration element is in a thin film structure.

5. The fingerprint identification assembly according to claim 1, wherein the vibration intensity of the first vibration element is greater than the vibration intensity of the second vibration element; and / or the vibration frequency of the first vibration element is greater than the vibration frequency of the second vibration element.

6. A display screen assembly characterized by, a display screen assembly comprising the fingerprint identification assembly according to any one of claims 1 to 5; and a display screen; wherein the first vibration element is attached to a back surface of the display screen; the fingerprint identification module is attached to the back surface of the display screen or is attached to a side of the first vibration element away from the display screen.

7. The display screen assembly according to claim 6, wherein a recess is arranged on the back surface of the display screen at a position corresponding to the fingerprint identification assembly, and the first vibration element is arranged in the recess.

8. The display screen assembly according to claim 6, wherein a projection area of the fingerprint identification area on a plane in which the display screen is located is a fingerprint identification sensing area; a shape of a projection of the first vibration element on the plane in which the display screen is located is one of: a circle, the circle covering at least part of the fingerprint identification sensing area; a rectangle, the rectangle covering at least part of the fingerprint identification sensing area; a rhombus, the rhombus covering at least part of the fingerprint identification sensing area; a ring, the ring surrounding the fingerprint identification sensing area; and a strip, the strip being arranged on a side of the fingerprint identification sensing area.

9. A terminal, characterized by comprising: the terminal comprises the display screen assembly according to any one of claims 6 to 8.

10. A terminal, characterized by comprising: the terminal comprises the fingerprint identification assembly according to any one of claims 1 to 5, and the terminal further comprises a middle frame or a back cover, and the first vibration element is attached to the middle frame or the back cover.

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