WO2021003877A1

WO2021003877A1 - Display apparatus and electronic device

Info

Publication number: WO2021003877A1
Application number: PCT/CN2019/112004
Authority: WO
Inventors: 王志; 毛信贤
Original assignee: 南昌欧菲生物识别技术有限公司
Priority date: 2019-07-09
Filing date: 2019-10-18
Publication date: 2021-01-14

Abstract

The present application discloses a display device and an electronic device. The display device comprises a display unit, a transmitter, a beam expander, an ultra-wide-angle lens, and an image sensor; wherein the transmitter and the beam expander are arranged on one side, away from the display side, of the display unit, and the beam expander is arranged between the transmitter and the display unit; wherein, the transmitter is used to emit sensing light toward the display unit, and the beam expander is used to diffuse the sensing light through the beam expander and project it to the outside of the display side of the display unit; the ultra-wide-angle lens and the image sensor are arranged on the peripheral side of the display unit and the ultra-wide-angle lens and the image sensor are correspondingly arranged; wherein, the ultra-wide-angle lens is used to acquire the sensing light reflected by user fingers and transmit the sensing light to the image sensor, and the image sensor is used to generate a fingerprint pattern according to the sensing light. The cooperation of the transmitter, the beam expander, the ultra-wide angle lens and the image sensor can provide more convenient fingerprint recognition experience.

Description

Display device and electronic equipment

This application claims the priority of the patent applications filed on the same day of July 9, 2019 in China with application numbers 201910618542.8 and 201921067407.0, and the names are "display devices and electronic equipment", the entire contents of which are incorporated herein by reference.

Technical field

This application relates to the technical field of fingerprint recognition, and in particular to a display device and electronic equipment.

Background technique

In the field of biometrics, fingerprint recognition is currently one of the most widely used biometric identification methods.

Generally, fingerprint recognition technology includes capacitive fingerprint recognition, ultrasonic fingerprint recognition, and optical fingerprint recognition. However, these fingerprint identification methods all require the user to press the finger to a specific small area, where the fingerprint of the user's finger is recognized, and then functions such as fingerprint recognition are achieved, and the actual experience effect is not ideal. Or, even if there are some related solutions to increase the fingerprint recognition area, the area of the fingerprint sensor chip needs to be increased accordingly, which will inevitably increase the cost.

Summary of the invention

The purpose of the present application is to provide a display device and electronic equipment to solve the problem of a small fingerprint recognition area in the prior art.

In order to solve the above technical problems, the present application provides a display device with fingerprint recognition function. The display device includes: a display unit, a transmitter, a beam expander, an ultra-wide-angle lens, and an image sensor; the transmitter and the beam expander are arranged on a side of the display unit away from the display side, and the beam expander The mirror is arranged between the emitter and the display unit; wherein the emitter is used to emit sensing light toward the display unit, and the beam expander is used to pass the sensing light through the expander The mirror diffuses and projects to the outside of the display side of the display unit; the ultra-wide-angle lens and the image sensor are both arranged on the peripheral side of the display unit and the ultra-wide-angle lens is arranged corresponding to the image sensor; wherein, the The ultra-wide-angle lens is used for acquiring the sensing light reflected by the user's finger and transmitting it to the image sensor, and the image sensor is used for generating a fingerprint pattern according to the sensing light.

In one embodiment, the transmitter is a structured light transmitter, and the structured light transmitter is used to emit a sensing light having a coded image, and the sensing light of the coded image is diffused by the beam expander and projected to the The display unit is outside the display side; or, the emitter is a speckle emitter, and the speckle emitter is used to emit a sensing light having a speckle pattern, and the sensing light of the speckle pattern passes through the beam expander Diffused and projected to the outside of the display side of the display unit.

In an embodiment, the display unit further includes a display layer, a touch control layer, and a protective layer that are stacked on top of each other. The protective layer is located outside the display device; the sensing light emitted by the emitter passes through the display The layer and the touch control layer diffuse to the protective layer, and are projected out of the display side through the protective layer.

In an embodiment, the surface of the ultra-wide-angle lens includes a convex curved surface and a plane facing the image sensor; the reflected light is incident and deflected by the convex curved surface, and is emitted from the plane to the image sensor.

In an embodiment, the protective layer covers the ultra-wide-angle lens; or, the ultra-wide-angle lens is located on the peripheral side of the protective layer.

In an embodiment, the display unit includes a first area and a second area, and both the first area and the second area are provided with the emitter and the beam expander; The measuring light is diffused to the corresponding area through the corresponding beam expander.

In an embodiment, in each region, the number of the emitter and the beam expander is one, and the emitter and the beam expander are located at the center of the corresponding region.

In an embodiment, the numbers of the emitters and the beam expander are corresponding to three or more; the three or more emitters and the beam expander are arranged at intervals and face the display unit Display side outside.

In an embodiment, the number of the ultra-wide-angle lens and the image sensor is two or more corresponding, and the two or more ultra-wide-angle lenses and the image sensor are arranged on the peripheral side of the display unit at intervals.

In one embodiment, the display unit is a liquid crystal display unit, and the liquid crystal display unit includes a stacked display layer, a polarizing layer, and a protective layer; the sensing light emitted by the emitter sequentially passes through the display layer and the The polarizing layer is emitted to the protective layer.

The present application also provides an electronic device, including the above-mentioned display device and a processor, and the processor is configured to perform fingerprint recognition according to the fingerprint pattern generated by the image sensor.

The application can provide the function of fingerprint recognition under the screen through the cooperation of the transmitter, beam expander, ultra-wide-angle lens and image sensor, and the area used for fingerprint recognition may at least include most of the area of the display unit. In this way, the display device does not need to be limited to a specific small fingerprint recognition area, and can provide a more convenient fingerprint recognition experience.

The transmitter emits the sensing light with the speckle pattern to obtain the three-dimensional fingerprint information of the user's finger to improve the accuracy of fingerprint recognition.

The ultra-wide-angle lens is used to increase the receiving range of the image sensor, thereby improving the integration of the display device.

Description of the drawings

FIG. 1 is a partial schematic diagram of a display device according to an embodiment of the present application.

FIG. 2 is a schematic diagram of the sensing light emitted by the display device of FIG. 1.

FIG. 3 is a partial schematic diagram of a display device according to another embodiment of the present application.

Fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present application.

Detailed ways

In order to have a clearer understanding of the technical features, purpose and effects of the application, the specific implementation of the application will now be described in detail with reference to the drawings.

1, the display device 100 provided by the embodiment of the present application can provide the function of fingerprint recognition under the screen, and the area used for fingerprint recognition includes most of the area of the display surface of the display unit 110; or , The entire display surface of the display unit 110 can realize fingerprint recognition. In this way, the display device 100 can provide a more convenient fingerprint recognition experience. Furthermore, the three-dimensional fingerprint information of the user's finger can be obtained by sensing light with a speckle pattern or a coded pattern, so as to improve the accuracy of fingerprint recognition.

As shown in FIGS. 1 to 2, the display device 100 includes: a display unit 110, a transmitter 120, a beam expander 130, an ultra-wide-angle lens 141 and an image sensor 142. The transmitter 120 is used to emit the sensing light having a speckle pattern or a coded pattern. The sensing light of the speckle image or the coded image is diffused to the outside of the display side of the display unit 110 through the beam expander 130, and further, the sensing light is blocked by the user's finger and reflected to form reflected light carrying fingerprint information; The reflected light of the information is projected to the edge of the display unit 110, and then captured by the ultra-wide-angle lens 141 and captured by the image sensor 142 to form a fingerprint pattern.

Wherein, the display unit 110 is used for the input instructions of the corresponding processor to present the corresponding screen, wherein the side that presents the screen is the display side or the touch side, and the side that presents the screen is the display surface or the touch surface. It should be understood that the display unit 110 may include multiple hierarchical structures; for example, when the display unit 110 is a liquid crystal display unit 110, it may include structures such as a polarizing layer 113 and a display layer 111.

Based on the structure of the display unit 110, the emitter 120 is arranged on the side of the display unit 110 away from the display side; in this way, the emitter 120 can emit a sensing light with a speckle pattern or a coded pattern toward the display side, and the sensing light can be It is transmitted to the outside of the display side of the display unit 110, and then can touch the user's finger to obtain fingerprint information of the user's finger.

Further, in order to enable the sensing light emitted by the emitter 120 to cover a wider area of the display unit 110, the beam expander 130 is arranged between the emitter 120 and the display unit 110. It should be understood that the sensing light is emitted from the emitting end of the transmitter 120, and the position of the beam expander 130 is set to face the emitting end of the transmitter 120. The beam expander 130 is used to diffuse the sensing light through the beam expander 130 and project it to the outside of the display side of the display device 100.

The sensing light exits through the beam expander 130 so that the exiting sensing light can cover most of the display surface of the display unit 110, or the exiting sensing light can completely cover the display surface of the display unit 110. Specifically, the exit angle of the sensing light through the beam expander 130 may be close to 180°, so that the exiting sensing light completely covers the display unit 110.

Specifically, the emitter 120 is a structured light emitter, and the structured light emitter is used to emit a sensing light having a coded image, and then the sensing light of the coded image is diffused by the beam expander 130 and projected to the outside of the display side of the display unit 110.

In another case, the emitter 120 is a speckle emitter, which is used to emit the sensing light having a speckle pattern, and then the sensing light of the speckle pattern is diffused by the beam expander 130 and projected to the display unit 110 outside the display side.

In some specific application scenarios, when the user's finger touches the display unit 110 (for example, the corner area or the central area of the display side of the display unit 110), the sensing light emitted by the beam expander 130 is also The user's finger is blocked, and the blocked sensing light accordingly acquires fingerprint information of the user's finger. Therefore, the fingerprint unlocking of the display device 100 does not need to be restricted to a certain small fixed area, but may include most/all areas of the display surface of the display unit 110.

When the sensing light is blocked by the user’s finger, the fingerprint information of the user’s finger is obtained and reflected to form a reflected light; due to the particularity of the finger structure, the normality of refraction belongs to diffuse refraction, and part of the reflected light is directed toward the display unit 110 Edge refraction. Based on this, in order to achieve the acquisition of reflected light, the ultra-wide-angle lens 141 and the image sensor 142 are arranged on the peripheral side of the display unit 110 and the ultra-wide-angle lens 141 and the image sensor 142 are arranged correspondingly.

It should be understood that the peripheral side refers to the surrounding area of the display unit 110. Taking a general mobile phone as an example, a general mobile phone may include a display unit, a control panel, a middle frame and a back cover, and the middle frame is located between the back cover and the display unit. The back cover, the middle frame and the display unit jointly define the internal space of the mobile phone; in other words, the back cover, the middle frame and the display unit define the main external contour of the mobile phone. The control board is arranged in the internal space of the mobile phone and is electrically connected to the display unit to control the display unit. The middle frame can be understood as being located on the peripheral side of the display unit, and the control panel can be understood as being located on the side of the display unit away from the display side.

Specifically, the ultra-wide-angle lens 141 is used to obtain the sensed light reflected by the user's finger and transmit it to the image sensor 142, and the image sensor 142 can generate a fingerprint pattern according to the corresponding type (such as a speckle image or coded image) of the sensed light. Thus, the image sensor 142 is connected to the processor, and the processor can perform fingerprint recognition according to the fingerprint pattern in the image sensor 142.

When the extracted fingerprint information matches the stored fingerprint information, the next step can be performed, such as unlocking the display device 100 (or an electronic device including the display device 100), or unlocking the display device 100 (or including the display device 100). The determination of a certain function in the electronic device of the display device 100 (such as the determination of commodity payment or the determination of data transmission), etc., in this embodiment only shows some situations for reference. Basically, the display device 100 ( Or the various operations of the electronic device including the display device 100 can be determined more once in the manner shown above, which can prevent the display device 100 (or the electronic device including the display device 100) from being used by others, To improve the safety of use.

It should be understood that the number of the ultra-wide-angle lens 141 and the image sensor 142 may be multiple, and they are arranged at intervals on the peripheral side of the display unit 110 to improve the receiving rate of the sensed light.

Further, the reflected light is a reflected light spot formed by the sensing light on the user's finger when the user's finger blocks the sensing light. Among them, an ultra-wide-angle lens 141 and an image sensor 142 can form a group of receiving modules 140. Wherein, the ultra-wide-angle lens 141 detects the reflected light spot formed on the user's finger when the user's finger blocks the sensing light, and transmits the reflected light spot to the image sensor 142. The image sensor 142 generates a fingerprint pattern based on the reflected light spot. Then, the processor can perform fingerprint recognition based on the fingerprint pattern.

Wherein, the display unit 110 includes a display layer 111, a touch layer (not shown in the figure) and a protective layer 112 which are stacked. The protective layer 112 is disposed on the display layer 111 and used to protect the display layer 111. The protective layer 112 is a hierarchical structure that is located outside the display device 100 and can be directly touched and pressed by the user. The protective layer 112 is generally a transparent protective layer 112, such as a transparent glass cover plate or a plastic cover plate. The touch layer is used to provide a touch function for the display device 100 (or an electronic device including the display device 100) to improve the user experience.

As described above, the sensing light emitted by the transmitter 120 passes through the beam expander 130 to pass through the display layer 111 and the touch layer, and then the sensing light exits and diffuses to most/all areas of the protective layer 112 and passes The protective layer 112 is projected to the outside of the display side of the display unit 110.

In the display device 100 shown in FIG. 2, in order to improve the receiving effect of the image sensor 142 on the reflected light, the ultra-wide-angle lens 141 is provided on the peripheral side of the display layer 111, and the ultra-wide-angle lens 141 and the image sensor 142 run along from the protective layer 112 to the display The directions of the layers 111 are arranged in sequence. The number of ultra-wide-angle lenses 141 is the same as the number of image sensors 142. Among them, the ultra-wide-angle lens 141 is disposed on the peripheral side of the protective layer 112; and the protective layer 112 covers and protects the ultra-wide-angle lens 141.

As shown in FIG. 2, due to the large imaging range of the ultra-wide-angle lens 141, when the user's finger 150 presses the protective layer 112, part of the sensing light is refracted toward the display layer 111. Most of the sensing light is deflected in the protective layer 112.

Based on this, the image sensor 142 can receive the sensing light in a larger range through the ultra-wide-angle lens 141, and extract the fingerprint information of the user in the sensing light through an algorithm. Therefore, the number of receiving modules 140 can be reduced, and the integration level of the display device 100 can be improved.

In some embodiments, the ultra-wide-angle lens 141 and the protective layer 112 may be connected by assembly. The ultra-wide-angle lens 141 may be embedded in the protective layer 112. For example, the ultra-wide-angle lens 141 may be embedded in the protection layer 112 from the display side of the protection layer 112; or the ultra-wide-angle lens 141 may be embedded in the protection layer 112 from the side of the protection layer 112 away from the display side.

In another case, in the display device 100 shown in FIG. 3, the ultra-wide-angle lens 141 is not covered by the protective layer 112 but is located on the peripheral side of the protective layer 112. It should be understood that the ultra-wide-angle lens 141 may be protected by other components of the display device 100.

Further, the surface of the ultra-wide-angle lens 141 includes a convex curved surface and a plane facing the image sensor 142, and the convex curved surface is convex relative to the plane. The sensing light is incident and deflected from the convex curved surface, and then is emitted to the image sensor 142 through the plane. Since the convex curved surface has a larger light-sensing range, a larger range of sensing light can be obtained through the ultra-wide-angle lens 141 to enhance the image sensor 142's reception of the sensing light, thereby improving the accuracy of the display device 100 for user fingerprint recognition Sex.

It should be understood that the function of the ultra-wide-angle lens 141 of the various embodiments of the present application in the display device 100 is to receive the sensed light in a range; based on this, the display device 100 of each embodiment does not have the effect of the ultra-wide-angle lens 141. The specific placement position or specific placement direction shall be limited. That is, in some embodiments, the convex curved surface of the ultra-wide-angle lens 141 may face the display side; while in other embodiments, the convex curved surface of the ultra-wide-angle lens 141 may face the protective layer 112; corresponding to the ultra-wide-angle lens 141, the image sensor 142 is arranged on the side of the ultra-wide-angle lens 141 away from the protective layer 112.

It should be understood that a suitable type of the ultra-wide-angle lens 141 is a fisheye lens. Since the imaging range of the fisheye lens is about 180° (generally greater than 180°), the reflected light can be received in a larger range through the fisheye lens, and the distortion of the fisheye lens is eliminated by the algorithm, and then the image sensor 142 forms a fingerprint pattern. This further improves the accuracy of fingerprint recognition.

Among them, the number of ultra-wide-angle lenses 141 and image sensors 142 is correspondingly multiple; under normal conditions, the numbers of ultra-wide-angle lenses 141 and image sensors 142 are the same, and multiple groups of receiving modules 140 are formed. Multiple groups of receiving modules 140 are arranged on the peripheral side of the display unit 110 at intervals. When the sensing light emitted to the outside of the display side of the display unit 110 forms a reflected light carrying user fingerprint information due to the blocking effect of the user's finger and is refracted to the surroundings, it passes through the multiple sets of receiving modules 140 located on the peripheral side of the display unit 110. By sensing the light reception, a fingerprint pattern can be formed, and fingerprint information of the user's finger can be obtained to realize functions such as unlocking or confirmation.

In one type of embodiment, the display unit 110 is divided into two opposite regions. For example, in the display device shown in FIGS. 1 to 3, the display unit therein is divided into a first area 201 and a second area 202 opposite to each other.

Further, in a general mobile phone, the display screen of the mobile phone can be divided into two areas, upper and lower, or two areas, left and right. The areas of the two areas are the same or approximately the same (for example, it is difficult to make the areas of the two areas the same in a notch screen, a water drop screen, or a digging screen). In addition, according to the specifications of the transmitter 120 and the beam expander 130 or the user’s usage habits, the areas of the two areas can be different. For example, the lower area of a general mobile phone is used more frequently, and the lower area can be set to be higher than the upper area. The area is small, so that the accuracy of fingerprint recognition in the lower area is high, and the speed of fingerprint recognition is faster, etc., so as to improve the user experience.

Each area is provided with a transmitter 120 and a beam expander 130; among them, one transmitter 120 and one beam expander 130 are a group of transmitting modules. The sensing light emitted by the transmitter 120 is diffused to all positions of the corresponding area through the corresponding beam expander 130. Different transmission modules are used for different areas, so that fingerprint recognition in different areas has different division of labor, and accordingly, the difficulty of fingerprint recognition by the display device 100 can be reduced, and the speed of fingerprint recognition can be improved.

Further, in each area, the number of the transmitter 120 and the beam expander 130 is one, and the transmitter 120 and the beam expander 130 are located in the center of the corresponding area. It should be understood that each area uses a set of emission modules to recognize the fingerprint of the user's finger, that is, the display device 100 as a whole emits the sensing light to the corresponding area through two sets of emission modules. Wherein, the transmitting modules are all located at the center of the corresponding area, and the center position is the geometrical relative center of the corresponding area, but not the absolute geometric center; as long as the center position satisfies the sensing light emitted by the transmitting module Can cover the corresponding area. Based on this, the full-screen fingerprint recognition of the display device 100 is realized through two sets of transmitting modules.

In another type of embodiment, the number of the transmitting modules is three or more than three groups, and the three or more transmitting modules are arranged at intervals and facing the display unit 110. Wherein, the interval setting includes, but is not limited to, the same row interval setting or the same column interval setting. It should be understood that the sensing light emitted by each emitting module only needs to cover a small area to realize full-screen fingerprint recognition of the display device 100, and can have a better fingerprint recognition accuracy. Wherein, this smaller area is relative to the two areas (for example, the first area 201 and the second area 202) of the above embodiment.

In some specific application scenarios, the screen size ratio in the display device 100 is 16:9. When the number of transmitter modules is two groups, the size ratio of each area can be 8:9 or 16:4.5; when the number of transmitter modules is three groups, the size ratio of the three areas can be 5: 9, 5:9 and 6:9, or according to the specifications of the transmitter 120 and the beam expander 130 or the user's usage habits, the areas of the three regions can have other settings. The situation of more than three sets of transmitting modules is similar to the situation of three sets of transmitting modules shown above.

As in the above embodiments, the display unit 110 includes but is not limited to a liquid crystal display unit. In the embodiments shown in FIGS. 1 to 3, the liquid crystal display unit includes a hierarchical structure such as a display layer 111, a protective layer 112, a polarizing layer 113, and a backlight layer not shown in the figure. The display layer 111, the polarizing layer 113 and the protective layer 112 are laminated, that is, the polarizing layer 113 is sandwiched between the display layer 111 and the protective layer 112. Since the display layer 111 of the liquid crystal module has a high light transmittance, the sensing light sequentially passes through the display layer 111 and the polarizing layer 113 and exits to the protective layer 112. This process has little effect on the sensing light and does not affect The acquisition of fingerprint information of the user's finger by sensing light.

It should be understood that the backlight layer (not shown in the figure) is used to provide backlight, and the backlight of the backlight layer cooperates with the display layer 111 to present an image. Specifically, the emitter 120 and the beam expander 130 are both disposed between the display layer 111 and the backlight layer.

Referring to FIG. 4, the present application also provides an electronic device 1000, which includes the display device 100 and the processor 300 in the above various embodiments. The processor 300 can be used to perform fingerprint recognition according to the fingerprint pattern generated by the image sensor 142. Furthermore, the entire screen of the electronic device can obtain the user's fingerprint information without being limited to a certain small fixed area, thereby increasing the fingerprint recognition range and improving the user's experience.

Further, the electronic device includes, but is not limited to, a mobile phone, or a tablet computer, or other types of touchable terminals.

The above disclosed are only specific embodiments of the application, but the application is not limited thereto, and those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. Obviously, these changes and modifications should fall within the protection scope required by this application. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any special restrictions on this application.

Claims

A display device, which has a fingerprint recognition function, and is characterized by comprising: a display unit, a transmitter, a beam expander, an ultra-wide-angle lens, and an image sensor;

The emitter and the beam expander are arranged on a side of the display unit away from the display side, and the beam expander is arranged between the emitter and the display unit; wherein the emitter is used for Emitting sensing light toward the display unit, and the beam expander is used to diffuse the sensing light through the beam expander and project to the outside of the display side of the display unit;

The ultra-wide-angle lens and the image sensor are both arranged on the peripheral side of the display unit and the ultra-wide-angle lens is arranged corresponding to the image sensor; wherein the ultra-wide-angle lens is used to obtain the sensing light reflected by the user's finger And transmitted to the image sensor, which is used to generate a fingerprint pattern according to the sensed light.
The display device of claim 1, wherein the emitter is a structured light emitter, and the structured light emitter is used to emit a sensing light having a coded image, and the sensing light of the coded image passes through the The beam expander is diffused and projected to the outside of the display side of the display unit; or, the emitter is a speckle emitter, and the speckle emitter is used to emit the sensing light with a speckle pattern. The sensing light is diffused through the beam expander and projected to the outside of the display side of the display unit.
3. The display device of claim 2, wherein the display unit further comprises a display layer, a touch layer, and a protective layer that are stacked, and the protective layer is located outside the display device;

The sensing light emitted by the emitter passes through the display layer and the touch layer to diffuse to the protective layer, and is projected to the outside of the display side through the protective layer.
The display device of claim 3, wherein the surface of the ultra-wide-angle lens comprises a convex curved surface and a plane facing the image sensor; the reflected light is incident and deflected by the convex curved surface, and Eject from the plane to the image sensor.
3. The display device of claim 3, wherein the protective layer covers the ultra-wide-angle lens; or, the ultra-wide-angle lens is located on the peripheral side of the protective layer.
The display device according to any one of claims 1 to 5, wherein the display unit includes a first area and a second area, and both the first area and the second area are provided with the transmitter And the beam expander; the sensing light emitted by the transmitter is diffused to the corresponding area through the corresponding beam expander.
The display device according to claim 6, wherein in each of the regions, the number of the emitter and the beam expander is one, and the emitter and the beam expander are located in the corresponding In the center of the area.
7. The display device according to claim 7, wherein the number of the emitters and the beam expander is three or more corresponding; three or more emitters and the beam expander It is arranged at intervals and faces the outside of the display side of the display unit.
The display device of claim 1, wherein the number of the ultra-wide-angle lens and the image sensor is two or more corresponding, and the two or more ultra-wide-angle lenses and the image sensor are arranged at intervals On the peripheral side of the display unit.
7. The display device of claim 1, wherein the display unit is a liquid crystal display unit, and the liquid crystal display unit includes a stacked display layer, a polarizing layer, and a protective layer; the sensing light emitted by the emitter is sequentially It passes through the display layer and the polarizing layer and exits to the protective layer.
8. The display device of claim 1, wherein the type of the ultra-wide-angle lens comprises: a fisheye lens.
3. The display device of claim 1, wherein the imaging range of the ultra-wide-angle lens is greater than or equal to 180°.
An electronic device, comprising the display device according to any one of claims 1 to 12 and a processor, and the processor is configured to perform fingerprint recognition according to a fingerprint pattern generated by the image sensor.