CN212160273U - Electronic equipment and detection module and display module thereof - Google Patents

Abstract

The utility model discloses an electronic equipment, including display module assembly and detection module assembly, display module assembly is including the display panel who is used for image display, display panel includes the panel layer, sets up first protective layer, neighbouring on the panel layer a side of first protective layer sets up the first optics rete and the neighbouring of the upper surface of first protective layer this side of first protective layer sets up the second optics rete of the lower surface of first protective layer. The detection module comprises an emitting unit and a receiving unit, the emitting unit is arranged below the lower surface of the first protective layer, the emitting unit is adjacent to the second optical film layer and arranged below the lower surface of the first protective layer, and the receiving unit is arranged below the display module. The utility model also discloses a detection module, display module assembly for above-mentioned display device. The utility model discloses better visual effect and user experience have.

Description

Electronic equipment and detection module and display module thereof

Technical Field

The utility model relates to the field of photoelectric technology, especially, relate to an electronic equipment and detect module and display module assembly thereof.

Background

With the technical progress and the improvement of living standard of people, users demand more functions and fashionable appearance for electronic products such as mobile phones, tablet computers, cameras and the like. At present, the development trend of mobile phones is that the mobile phones are light and thin, are close to a full screen, and have functions of self-shooting by a front camera, face recognition and the like. As the functions supported by the electronic device become more and more abundant, the number of elements to be set becomes more and more, and a part of the display area on the front side of the electronic device needs to be occupied, which affects the appearance and user experience.

Recently, in order to achieve a full screen or nearly full screen effect, a technology of detecting biological features under a screen has come into use, that is, a biological feature detection module is placed below a display screen, and biological feature detection is achieved by sending or receiving detection light beams through the display screen. However, for non-self-emissive types of display screens, such as liquid crystal display screens, the under-screen biometric detection needs to address the screen's problem with respect to the detection beam transmittance. Some manufacturers have proposed placing the biometric detection module under the backlight module and tapping the entire display screen and backlight module. Although the scheme can realize the detection of the biological characteristics under the screen, the relatively complex process is needed, the product cost is higher, and the holes are needed on the screen and the backlight module, so that the visual effect of the whole display of the screen is poorer.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an electronic equipment and detection module and display module assembly that have function under screen for solving prior art problem.

An aspect of the utility model discloses an electronic equipment, including display module assembly and detection module assembly, display module assembly is including the display panel who is used for image display, display panel includes the panel layer, sets up first protective layer, neighbouring on the panel layer a side of first protective layer sets up the first optics rete and the neighbouring of the upper surface of first protective layer this side of first protective layer sets up the second optics rete of the lower surface of first protective layer. The detection module comprises an emitting unit and a receiving unit, the emitting unit is arranged below the lower surface of the first protective layer adjacent to the second optical film layer, and the receiving unit is arranged below the display module; the emitting unit can penetrate through the first protective layer to emit detection beams to reach the surface or the outside of the light guide layer and can be reflected by an external object, the receiving unit can penetrate through the display module to receive the detection beams reflected by the external object, the detection beams comprise infrared light or near infrared light, and the detection beams emitted by the emitting unit can be reflected by the first optical film layer and the second optical film layer and/or reach the external object after being refracted on the upper surface of the first protective layer.

Optionally, the mobile terminal further comprises a second protective layer arranged on the first protective layer, the first protective layer or the second protective layer comprises a fingerprint area for a user to touch, and the distance between the fingerprint area and the transmitting unit is 10-25 mm.

Optionally, a distance between one end of the first optical film layer far away from the side surface and the side surface is 1 mm to 10 mm, a distance between one end of the second optical film layer far away from the side surface and the side surface is 2 mm to 10 mm, and a distance between one end of the second optical film layer near the side surface and the side surface is 1 mm to 5 mm.

Optionally, the display module further includes a backlight module disposed below the display panel and configured to provide a backlight beam, and the receiving unit is disposed below the backlight module and receives the detection beam reflected by an external object through the backlight module.

Optionally, the display device further includes a third optical film layer disposed on the lower surface of the first protective layer and corresponding to the emitting unit, and the third optical film layer can transmit infrared light or near infrared light and block visible light; the first optical film layer and the second optical film layer are made of materials which reflect infrared light and absorb visible light, the third optical film layer is made of materials which transmit infrared light and absorb visible light, and the first optical film layer, the second optical film layer or the third optical film layer are formed on the upper surface and the lower surface of the first protective layer in a spraying, brushing and bonding mode.

Optionally, the display module further includes an outer frame for accommodating the backlight module and the display panel, the outer frame can be used for protecting the display panel and the backlight module, the outer frame can be detachably connected or fixedly connected with the display panel and the backlight module, the transmitting unit is arranged between the display panel and the side face of the outer frame, the receiving unit is arranged between the backlight module and the bottom face of the outer frame, and the outer frame accommodates the receiving unit and the transmitting unit.

Optionally, the backlight module includes a light guide plate, a reflector plate disposed below the light guide plate, a diffuser plate disposed above the light guide plate, and a backlight source disposed on a side of the light guide plate, where the backlight source is configured to provide a backlight beam for image display of the display panel, the light guide plate includes a light exit surface opposite to the diffuser plate and a light entrance surface connected to the light exit surface, the light guide plate is configured to receive the backlight beam from the backlight source from the light entrance surface and emit the backlight beam from the light exit surface, the reflector plate is configured to reflect a part of the backlight beam emitted from the bottom of the light guide plate into the light guide plate and transmit the detection beam, and the receiving unit is disposed in close proximity to or spaced apart from the reflector plate.

Optionally, the receiving unit includes a light shield made of a light-tight material, and the light shield is used to block the backlight beam or the detection beam from the emitting unit from directly entering the receiving unit.

An aspect of the utility model discloses a detect module, including the detection module who is used for above-mentioned display device.

An aspect of the utility model discloses an electron is equipment, including foretell display device or detection module.

Compared with the prior art, the utility model discloses a detect the module and see through leaded light layer transmission measuring beam can see through the display module assembly receives the measuring beam by the external object reflection to need punch on the display module assembly just can realize the detection and the discernment to the external object under the screen. Therefore, the detection module, the display device comprising the detection module and the electronic equipment comprising the display device have better overall visual effect and user experience.

Drawings

Fig. 1 is a schematic view of an embodiment of the present invention;

fig. 2 is a schematic diagram of an embodiment of the present invention;

fig. 3 is a schematic diagram of an embodiment of the present invention;

fig. 4 is a schematic diagram of an embodiment of the present invention;

fig. 5 is a schematic diagram of an embodiment of the present invention;

FIG. 6 is a schematic view of a diffuser in accordance with an embodiment of the present invention;

fig. 7 is a schematic diagram of a transmittance curve of a reflector according to an embodiment of the present invention;

fig. 8 is a schematic diagram of an embodiment of the present invention;

fig. 9 is a schematic diagram of an embodiment of the present invention;

fig. 10 is a schematic diagram of an embodiment of the present invention;

fig. 11 is a schematic diagram of an embodiment of the present invention.

Detailed Description

In the detailed description of the embodiments of the present invention, it is to be understood that when a substrate, a frame, a sheet, a layer, or a pattern is referred to as being "on" or "under" another substrate, another sheet, another layer, or another pattern, it can be "directly" or "indirectly" on the other substrate, the other sheet, the other layer, or the other pattern, or one or more intervening layers may also be present. The thickness and size of each layer in the drawings of the specification may be exaggerated, omitted, or schematically represented for clarity. Further, the sizes of the elements in the drawings do not completely reflect actual sizes.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, in an embodiment of the present invention, an electronic device 1 includes a display module 20 and a detection module 10 disposed below or at the back of the display module 20. The detection module 10 can transmit and receive the detection light beam 101 through the display module 20. The front surface of the display module 20 of the electronic device 1 has a display Area 5(Active Area, AA) for displaying and a non-display Area 6 surrounding the display Area 5. The detection module 10 is disposed corresponding to one light-transmitting area 7 of the display area 5.

In this embodiment, the detection module 10 can transmit a detection beam to the surface or outside of the display module 20 through the display module 20, and receive the detection beam reflected by the external object 1000 through the display module 20. The display module 20 can be used for displaying images and can provide a contact or non-contact human-computer interaction interface for a user.

The display module 20 includes a display panel 21, a backlight module 22 disposed below the display panel 21, and an outer frame 24 for accommodating the display panel 21 and the backlight module 22. The display panel 21 can be used for image display, and the backlight module 22 can provide the display panel 21 with a backlight beam for image display. The outer frame 24 is used for protecting the display panel 21, the backlight module 22 and the detection module 10, and is detachably connected or fixedly connected with the display panel 21, the backlight module 22 and the detection module 10.

The display panel 21 includes a panel layer 211, a first protective layer 212 disposed on the panel layer 211, a second protective layer 213 disposed on the first protective layer 212, a first optical film layer disposed on an upper surface of the first protective layer adjacent to one side surface of the first protective layer 212, and a second optical film layer disposed on a lower surface of the first protective layer adjacent to the side surface of the first protective layer 212. The first protective layer 212 and the second protective layer 213 together constitute a cover glass (cover glass) of the display panel 21. The backlight module 22 includes a light guide plate 222, a reflective sheet 221 disposed below the light guide plate 222, a diffusion sheet 223 disposed above the light guide plate 222, and a backlight source 224 disposed adjacent to a side surface of the light guide plate 222. The detecting module 10 is partially disposed under the reflective sheet 221. The display panel 21 is disposed above the diffusion sheet 223. The backlight light source 224 is used for providing a backlight beam required for image display to the display panel 21. The light guide plate 222 includes a light exit surface (not numbered) opposite to the diffusion sheet 223 and a light entrance surface (not numbered) connected to the light exit surface, and the light guide plate 222 is configured to receive the backlight beam from the backlight source 224 from the light entrance surface and emit the backlight beam from the light exit surface. The reflective sheet 221 is used for reflecting a part of the backlight beam emitted from the bottom of the light guide plate 222 into the light guide plate 222 and transmitting the detection beam 101. The diffusion sheet 223 is used for diffusing the backlight beam emitted from the light-emitting surface of the light guide plate 222, so that the backlight beam enters the display panel 21 more uniformly and divergently.

The first protective layer 212 has a plate-like structure. The first protective layer 212 includes upper and lower surfaces opposite to each other, and four side surfaces connected to the upper and lower surfaces.

The detection module 10 includes a transmitting unit 12 and a receiving unit 13. The emission unit 12 is disposed under the lower surface of the first protective layer 212, and is disposed under the lower surface of the first protective layer 212 adjacent to one side 2121 of the first protective layer 212. The emitting unit 12 is configured to emit a detection beam 101. The position of the transmitting unit 12 is also arranged corresponding to the non-display area 6 of the electronic device 1.

The detection beam 101 can enter the first protective layer 212 from the lower surface of the first protective layer 212 and exit from the upper surface of the first protective layer 212, enter the second protective layer 213, and then reach the surface or outside of the second protective layer.

A first optical film 214 is disposed on an edge portion of the upper surface of the first protection layer 212, which is connected to the side surface 2121, and a second optical film 215 is disposed on an edge portion of the lower surface of the first protection layer 212, which is connected to the side surface 2121. The first optical film layer 214 is used for reflecting the detection beam 101 and transmitting visible light. The first optical film layer 214 has a suitable width such that the detection beam 101 emitted by the emission unit 12 can be reflected onto the second optical film layer 215. The second optical film layer 215 has a suitable width such that the second optical film layer 215 can receive the detection beam 101 from the first optical film layer 214 and reflect the detection beam 101 to the external object 1000.

The detection beam 101 emitted by the emission unit 12 enters the first protective layer 212 through the side surface of the first protective layer 212, and can reach an external object 1000 after the surface of the first protective layer 212 is reflected by the first optical film layer 214. The detection beam 101 is reflected by an external object 1000 and then can sequentially pass through the second protection layer 213, the first protection layer 212, the panel layer 211 and the backlight module 22 to reach the receiving unit 13. The receiving unit 13 receives the detection light beam 101 emitted by the external object 1000 and acquires biometric information or image information of the external object 1000, thereby being capable of detecting the biometric information of the external object 1000 and/or performing image rendering on the external object 1000.

In other or modified embodiments, the receiving unit 13 may also receive visible light emitted or reflected by the external object 1000 to perform visible light imaging on the external object 1000.

The detection beam 101 may be infrared light or near infrared light. The first and second optical film layers 214 and 215 may be made of an optical material capable of absorbing visible light and reflecting infrared light. The first and second optical film layers 214 and 215 may be formed on the upper and lower surfaces of the first protective layer 212 by spraying, painting, bonding, or the like. The first and second optical film layers 214 and 215 may have a black surface or be made using a black material.

In this embodiment, the first optical film 214 and the second optical film 215 are disposed below the first protection layer 212 corresponding to the non-display area 6 of the electronic device 1, so that the first optical film 214 and the second optical film 215 do not affect the image display of the electronic device 1. The method is as follows. The distance between the end of first optical film 214 far from side 2121 of first protective layer 212 and side 2121 of first protective layer 212 is L1, the distance between the end of second optical film 215 far from side 2121 of first protective layer 212 and side 2121 of first protective layer 212 is L2, and the distance L2 is greater than the distance L1. Second optical film layer 215 is spaced (not numbered) from side 2121 by an end distance between an end of second optical film layer 215 adjacent to side 2121 and side 2121. The emission unit 12 can emit the detection beam 101 through the second optical film layer 214 and the interval of the lower surface edge of the first protective layer 212. The width of the space is the difference between L2 and L1. In this embodiment, the distance L1 is about 1 mm to 10 mm, the distance L2 is about 2 mm to 10 mm, and the width of the gap is about 1 mm to 5 mm. The first optical film layer 214 and the second optical film layer 215 have a width of about 1 mm to about 10 mm

The detection beam 101 emitted by the emitting unit 12 enters the first protective layer 212 through the space between the second optical film layer 215 and the lower surface edge of the first protective layer 212, reaches the second optical film layer 215 after being reflected by the first optical film layer 214, and exits from the upper surface of the first protective layer 212 after being reflected by the second optical film layer 215, and the detection beam 101 may further reach the upper surface or the outside of the second protective layer 213. So that the detection beam can reach the upper surface or the outside of the electronic device 1. In this embodiment, the detection beam 101 can reach the light-transmitting region 7, and the external object 200 can perform biometric detection or recognition, such as fingerprint detection or recognition, iris detection or recognition, face detection or recognition, and the like, through the light-transmitting region 7. Further, in a modified embodiment of the above embodiment, the first protective layer 212 or the second protective layer 213 includes a fingerprint area for a finger of a user to touch, the distance between the fingerprint area and the emitting unit 12 is about 10-25 millimeters (mm), the width of the first optical film 214 and the second optical film 215 is about 5-10 mm, and the thickness of the first optical film is less than about 1 mm, and the first optical film 214 and the second optical film 215 are disposed on the edge of the upper and lower surfaces of the first protective layer 212 adjacent to the side of the emitting unit 12.

The second passivation layer 213 has substantially the same structure and size as the first passivation layer 212, and the second passivation layer 213 is disposed on the first passivation layer 212. In this embodiment, the second protection layer 213 and the first protection layer 212 are made of ultra-thin glass.

In other or modified embodiments, when the detection module 10 is used for face recognition, a user can face the face to the display area 5 on the front surface of the electronic device 1, and the detection module 20 can emit and/or receive the detection light beam 101 through the display module 20, where the detection light beam 101 includes structured light made of infrared light. By collecting the detection light beam 101 reflected by the external object, the detection module 10 can detect and identify the facial features of the external object in two dimensions and/or three dimensions.

In other or modified embodiments, when the detection module 10 is used for fingerprint detection, a user can directly place a finger on the second protection layer 213 corresponding to the transparent region 7 for fingerprint detection. In other or modified embodiments, when the electronic device 1 has a touch control function, the second protection layer 213 may be used for a user to perform a touch operation directly on its surface.

The receiving unit 13 is disposed below the backlight module 22, and is configured to receive the detection light beam 101 reflected by the external object 1000 through the display module 20. The receiving unit 13 includes a sensor 131, an optical member 132 disposed above the sensor 131, and a light shield 113 disposed outside the sensor 131 and the optical member 132 and extending upward.

In this embodiment, the detection beam 101 includes infrared light, and the sensor 131 includes an infrared light image sensor, which is capable of receiving infrared light and converting the infrared light into a corresponding electrical signal. The optical assembly 132 includes a lens operable to condense the detection beam 101 reflected by the external object 1000 so that it is imaged on the sensor 131.

In other or alternative embodiments, the sensor 131 may also include a visible light image sensor or other types of photoelectric conversion devices. The optical assembly 132 may also include one or more of an optical lens, a collimating element, a microlens, or a microlens array.

In other or modified embodiments, the optical element 132 may be omitted, and the detection light beam 101 reflected by the external object 1000 directly reaches the sensor 131 after passing through the display module 20.

In this embodiment, the emitting unit 12 is disposed between the lower surface of the first protective layer 212 of the display panel 21 and the side surface of the outer frame 24, and the position of the emitting unit 12 corresponds to the non-display area 6 of the electronic device 1 when viewed from the front of the electronic device 1.

The receiving unit 13 is disposed between the reflection sheet 221 and the bottom surface of the outer frame 24. The transmitting unit 12 and the receiving unit 13 are housed by the housing 24. The outer frame 24 has a bottom surface and four side surfaces extending upward along the side edges of the bottom surface.

In other or modified embodiments, the four side ends of the outer frame 24 may further have protruding portions extending inward, so that the outer frame 24 can better fix and receive the display panel 21, the backlight module 22 and the detection module 10.

After the detection light beam 101 emitted by the emitting unit 12 enters the first protective layer 212, a part of the detection light beam 101 is reflected by the first optical film 214 and the second optical film 215 and/or refracted on the upper surface of the first protective layer 212 and then emitted to the upper surface or the outer portion of the second protective layer 213, that is, the outer surface or the outer portion of the display module 20. The detection light beam 101 is reflected by an external object 1000 and then can be transmitted through the display module 20 and received by the receiving unit 13. The receiving unit 13 can receive the reflected detection beam 101 through the display module 20, so as to obtain the biometric information or image information of the external object 1000 in a contact manner or a short distance (within 10 cm).

In this embodiment, the detection beam 101 can be used for two-dimensional and/or three-dimensional image rendering of the external object 1000, or for two-dimensional and/or three-dimensional biometric recognition of the external object.

In this embodiment, the external object 1000 is a finger or a fingerprint. In other modified embodiments, the external object 1000 may be a face, an eye (iris), a subcutaneous capillary, or the like. The biological characteristics of external object 1000 include, but are not limited to, fingerprint characteristics, facial characteristics, iris characteristics, body temperature characteristics, pulse, heart rate, blood flow, vascular structure, and the like.

In this embodiment, the detection beam 101 is infrared light. In other modified embodiments, the detection beam 101 may be one or more of visible light, invisible light, electromagnetic wave, ultrasonic wave, and ultraviolet light.

In this embodiment, the Emitting unit 12 may include one or more light Emitting elements, such as but not limited to a Light Emitting Diode (LED), a Vertical Cavity Surface Emitting Laser (Vertical Cavity Surface Emitting Laser), or other light Emitting devices. The receiving unit 13 may comprise an infrared image sensor capable of receiving infrared light beams and converting them into corresponding electrical signals. In other or modified embodiments, the receiving unit 13 may include a visible light image sensor, or other types of photoelectric conversion chips.

In further embodiments, the receiving unit 13 may include an image sensor and a lens, a collimating lens, or a micro-lens array disposed thereon. The detection light beam 101 reaches the receiving unit 13 through the display module 20, is subjected to optical path optimization through the lens, or the collimating lens or the micro-lens array, is received by the image sensor, and can generate a corresponding image. For example, but not limited to, the lens, the collimator lens, or the microlens array may be disposed in the space 114 shown in fig. 1, the space 114 being a space formed when the image sensor of the receiving unit 13 and the reflection sheet 221 are disposed at a space. Of course, in other modified embodiments of the present invention, the image sensor and/or the lens, the collimating lens or the micro-lens array, etc. of the receiving unit 13 and the reflective sheet 221 may be disposed closely or at intervals.

The transmitting unit 12 and the receiving unit 13 shown in fig. 2 are schematic representations only, and do not represent any limitation of the transmitting unit 12, the receiving unit 13, and the shape, structure, and positional relationship therebetween.

In this embodiment, the light shield 113 of the receiving unit 13 is made of black opaque material and is disposed close to the reflective sheet 221, so that external stray light and interference of reflected light from the display panel 21 and the reflective sheet 221 can be effectively reduced. In other or modified embodiments, the light shield 113 may have different structures, shapes, sizes, etc. The diffusion sheet 223 includes one of a quantum dot film, a nano porous film, polyethylene terephthalate, or other polyester compounds.

Referring to fig. 3, a schematic diagram of a modified embodiment of the electronic device 1 is shown, where the electronic device 1 is used in fig. 3 to contactlessly or remotely detect biometric information of an external object 1000 or to render an image of the external object 1000 or to perform visible light imaging. At this time, the external object 2000 includes, but is not limited to, a face, an iris, etc. The structure of the electronic device 1 of fig. 3 is substantially the same as in fig. 2. The emitting unit 12 can emit and reflect the detection light beam 101 onto the external object 1000, and the receiving unit 13 can receive the reflected detection light beam 101 through the display module 20 to obtain the biometric information or image information of the external object 1000 without contact or remotely (with a distance greater than 10 cm), such as but not limited to: face detection, iris detection, body temperature detection, heart rate detection, and the like.

In summary, the electronic device 1 may contact or closely acquire the biometric information or the image information of the external object 1000, and may also non-contact or remotely acquire the biometric information or the image information of the external object 1000. Moreover, the detection module 10 can be applied to various products and application scenarios, such as locking or unlocking of an electronic device (e.g., a mobile phone, a tablet computer, etc.), online payment service verification, authentication of a financial system or a public security system, or pass verification of an access control system, according to the biometric information or image information of the external object 1000 to perform corresponding detection and identification actions.

Please refer to fig. 4, which is a schematic diagram of an electronic device 1 according to another embodiment of the present invention, the electronic device 1 shown in fig. 4 has a structure substantially the same as that shown in fig. 2, except that the second passivation layer 213 is omitted. The first protective layer 212 is used directly as a glass cover plate.

Please refer to fig. 5, which is a schematic diagram of another embodiment of the electronic device 1 of the present invention, the electronic device 1 shown in fig. 5 has a structure substantially the same as that shown in fig. 2, except that a third optical film layer 216 is disposed above the lower surface of the first protection layer 212 corresponding to the emitting unit 12, and the third optical film layer 216 can transmit the detection beam 101 and block visible light. The electronic device 1 of the embodiment employs the third optical film layer 216, which can better eliminate the possible influence of the visible light from the backlight or other places on the image display of the display module 20 through the space above the emission unit 12. The third optical film layer 216 may be an infrared ink (IR ink). The third optical film layer 216 is formed on the lower surface of the first protection layer 212 by spraying, brushing, and bonding.

Referring to fig. 6, which is a partial schematic view of the electronic device shown in fig. 1, when the diffusion sheet 223 includes a quantum dot film, the diffusion sheet 223 includes a base 2231 and a plurality of quantum dots 2232 disposed in the base 2231. The backlight light beam provided by the backlight light source 224 may be blue light, a portion of which can be converted by the quantum dots 2232 in the quantum dot film into red light and green light, which can be mixed to form white light, which can be used for image display of the display panel 21. In a modified embodiment of this embodiment, the backlight light sources 224 can emit ultraviolet light, the diffusion sheet 223 can convert the ultraviolet light from the backlight light sources 224 into red light, green light, and blue light, and the converted red light, green light, and blue light can be mixed into white light and supplied to the display panel 21 for image display.

In this embodiment and the modified embodiments, the diffusion sheet 223 has a better transmittance for the detection light beam 101, for example, but not limited to, when the detection light beam 101 is infrared light, the transmittance of the diffusion sheet 223 for the detection light beam 101 is greater than 50%.

In this embodiment, the panel layer 211 includes two substrates disposed opposite to each other and a liquid crystal layer disposed between the two substrates. The display panel 21 is a liquid crystal display panel. The first protection layer 212 is made of optical glass. The first protective layer 212 also serves as a protective layer for the panel layer 211, and can protect the panel layer 211. The display panel 21 can transmit the detection light beam 101, and the substrate, the liquid crystal layer and the first protective layer 212 of the display panel 21 have a better transmittance for the detection light beam 101. For example, but not limited to, when the detection beam 101 is infrared light, the transmittance of the display panel 21 to the detection beam 101 is about 50%. The first protection layer 212 is made of a transparent material, and has a transmittance of more than 90% for the detection beam 101.

In this embodiment, the reflective sheet 221 can reflect visible light and transmit the detection beam 101. For example, but not limiting of, the reflective sheet 221 is formed by a stack of multilayer optical films having different refractive indices for the detection beam 101 and visible light, the reflective sheet having a reflectance of greater than 90% for visible light, a transmittance of less than 0.1% for visible light, and a transmittance of greater than 90% for the detection beam 101 by optical modulation. Preferably, the detection light beam is infrared light, and the reflectivity of the reflection sheet 221 to visible light is greater than 90%, and the transmissivity to infrared light is greater than 90%.

Referring to fig. 7, in an embodiment of the present invention, the transmittance of the reflective sheet 221 to infrared light with a wavelength of 900nm to 1000nm is greater than 90%, and the transmittance to visible light is less than 1%.

In the embodiment or the modified embodiment, the detection Light beam 101 may include Flood Light (Flood Light, Light beam that the illumination area of Flood Light finger is wider and the illumination angle is divergent), speckle structured Light, coded structured Light, one or more of modulation pulse signals.

Fig. 8 is a schematic diagram of an embodiment of the electronic device 1 shown in fig. 1. In this embodiment, the receiving unit 13 is disposed below the display module 20 adjacent to a side surface of the display module 20, and is located at a bottom position in fig. 4 when viewed from the front of the display module 20. The emitting unit 12 is disposed between the side of the display module 20 and the side of the outer frame 24, near the middle of the bottom of the display module 20 in fig. 4. The emitting unit 12 emits the detection light beam 101, which is reflected by the external object after passing through the display module 20, and passes through the display module 20 again to be received by the receiving unit 13, and can be used for detecting the biological characteristics of the external object, or drawing the image of the external object, or detecting the spatial coordinate changes such as the motion or distance of the external object.

Please refer to fig. 9, which is a schematic diagram of an alternative embodiment of the electronic device 1 shown in fig. 1. In this embodiment, the receiving unit 13 is disposed under the display module 20 adjacent to a side surface of the display module 20 (located at a bottom position in fig. 4 when viewed from the front of the display module 20). The emitting unit 12 is disposed between the side of the display module 20 and the side of the outer frame 24, adjacent to the bottom of the left side of the display module 20 in fig. 4.

Please refer to fig. 10, which is a schematic diagram of an alternative embodiment of the electronic device 1 shown in fig. 1. In this embodiment, the electronic device 1 has substantially the same structure as the embodiment shown in fig. 1. The receiving unit 13 is disposed below the display module 20 adjacent to a side surface of the display module 20 (located at a bottom position of fig. 4 when viewed from the front of the display module 20), and the number of the transmitting units 12 is two, and the two transmitting units are respectively disposed between the side surface of the display module 20 and a side surface of the outer frame 24, and are adjacent to bottoms of left and right sides of the display module 20 in fig. 6.

Please refer to fig. 11, which is a schematic diagram of an alternative embodiment of the electronic device 1 shown in fig. 1. In this embodiment, the electronic device 1 has substantially the same structure as the embodiment shown in fig. 1. The transmitting unit 12 is disposed between the side of the display module 20 and the side of the outer frame 24 adjacent to the bottom of the display module 20, the number of the receiving units 13 is two, and the receiving units 13 are disposed below the display module 20 adjacent to the top of the display module 20. In the present embodiment, the two receiving units 13 are capable of receiving the detection light beams 101 reflected by the external object 1000, respectively, and obtaining three-dimensional biometric information of the external object 1000 through Binocular Stereo Vision (Binocular Stereo Vision), or drawing a three-dimensional image of the external object, or detecting a change in coordinates such as a direction and a distance of the external object in a three-dimensional space.

In the above embodiment or the modified embodiment, the detection module 20 may further include a processor and a memory (not shown), and the processor may obtain the two-dimensional information and/or the depth information of the external object 1000 according to the detection beam 101 received by the receiving unit 13. Further, the memory may also store the biometric information data in advance, and the processor may be configured to perform two-dimensional and/or three-dimensional biometric detection and identification of the external object by comparing the obtained two-dimensional information and/or depth information of the external object 1000 with the pre-stored biometric information data, such as but not limited to: two-dimensional and/or three-dimensional fingerprint detection, face detection, iris detection, subcutaneous capillary detection, and the like.

By detecting and identifying the biological features of the external object 1000, the detection module 10 may be applied to various products and application scenarios, such as locking or unlocking of the electronic device 1 or other electronic devices including the electronic device 1, online payment service verification, authentication of a financial system or a public security system, and pass verification of an access control system.

By drawing a two-dimensional or three-dimensional image of the external object 1000, the detection module 10 may be applied to application scenes of photographing, modeling, and the like of the electronic device 1 or other electronic devices including the electronic device 1.

By detecting the spatial coordinates of the external object 1000, the detection module 10 may be applied to an application scenario involving a direction, a distance, a speed, and the like of the electronic device 1 or other electronic devices including the electronic device 1.

When the detection module 10 is applied to the electronic device 1 or an electronic device including the electronic device 1, the application scenes, functions, and the like are all realized by the detection module 10 through the display module 20, and can be regarded as interactive application with an off-screen object through an off-screen or in-screen structure.

Thus, the electronic device 1 can be used for biometric detection and recognition of external objects in two and/or three dimensions, or for image rendering of external objects in two and/or three dimensions, or for spatial coordinate detection of external objects in two and/or three dimensions.

In the embodiments and modifications of the present invention, the external object 1000 includes, but is not limited to, a finger, a fingerprint, an eye, an iris, a subcutaneous blood vessel, a face, etc.

In the above or modified embodiments of the present invention, the positions and the numbers of the transmitting unit 12 and the receiving unit 13 may have different settings, which is not limited by the present invention.

The utility model also provides a detect the module, it includes above-mentioned detection module 10 or its change embodiment to detect the module, it can be used to in electronic equipment 1 or its change embodiment.

The utility model also provides a backlight module, backlight module can arrange above-mentioned detection module group and use. The backlight module includes the backlight module 22 or its modified embodiment, which can be used in the electronic device 1 or its modified embodiment.

The utility model also provides an electronic equipment, electronic equipment includes above-mentioned electronic equipment 1 or its change embodiment. The electronic equipment can be a mobile phone, a tablet personal computer, an intelligent watch, an augmented reality/virtual reality device, a human body action detection device, an automatic driving automobile, intelligent household equipment, security equipment, an intelligent robot and the like.

Compared with the prior art, the utility model discloses detection module 10 passes through first protective layer 212 transmission detection beam 101 and can see through display module assembly 20 receives the detection beam 101 by outside object 1000 reflection to need punch on display module assembly 20 just can realize detection and discernment to outside object 1000 under the screen. Therefore, the detection module 10, the electronic device 1 comprising the detection module 10 and the electronic device comprising the electronic device 1 have better overall visual effect and user experience.

It should be noted that, those skilled in the art can understand that, without creative efforts, some or all of the embodiments of the present invention, and some or all of the deformation, replacement, alteration, split, combination, extension, etc. of the embodiments should be considered as covered by the inventive idea of the present invention, and belong to the protection scope of the present invention.

Any reference in this specification to "one embodiment," "an embodiment," "example embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature or structure is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature or structure in connection with other ones of the embodiments.

The infrared light described in the specification of the present invention refers to near-infrared light having a wavelength of about 800nm to 2000nm, and the visible light refers to visible light having a wavelength of about 380nm to 800 nm.

The references to "length", "width", "upper", "lower", "front", "rear", "back", "front", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. as used herein are intended to refer to the orientation or positional relationship shown in the drawings, and are intended to facilitate the description of the embodiments and to simplify the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Like reference numbers and letters refer to like items in the figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance. In the description of the present invention, "plurality" or "a plurality" means at least two or two unless specifically defined otherwise. In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, "disposed," "mounted" or "connected" is to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. The terms used in the following claims should not be construed to limit the invention to the specific embodiments disclosed in the specification. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An electronic device, comprising:

the display module comprises a display panel for displaying images, wherein the display panel comprises a panel layer, a first protective layer arranged on the panel layer, a first optical film layer arranged on the upper surface of the first protective layer and close to one side surface of the first protective layer, and a second optical film layer arranged on the lower surface of the first protective layer and close to the side surface of the first protective layer;

the detection module comprises an emitting unit and a receiving unit, the emitting unit is arranged below the lower surface of the first protective layer adjacent to the second optical film layer, and the receiving unit is arranged below the display module;

the emitting unit can transmit a detection beam to the surface or the outside of the display panel through the first protective layer and can be reflected by an external object, the receiving unit can transmit the detection beam reflected by the external object through the display module, the detection beam comprises infrared light or near infrared light, and the detection beam emitted by the emitting unit can be reflected by the first optical film layer and the second optical film layer and/or can reach the external object after being refracted by the upper surface of the first protective layer.

2. The electronic device of claim 1, further comprising a second protective layer disposed on the first protective layer, wherein the first protective layer or the second protective layer comprises a fingerprint area for a user's finger to touch, and the fingerprint area is 10 mm to 25 mm from the transmitting unit.

3. The electronic device of claim 1, wherein an end of the first optical film layer away from the side surface is 1 mm to 10 mm away from the side surface, an end of the second optical film layer away from the side surface is 2 mm to 10 mm away from the side surface, and an end of the second optical film layer adjacent to the side surface is 1 mm to 5 mm away from the side surface.

4. The electronic device according to claim 1, wherein the display module further comprises a backlight module disposed below the display panel for providing a backlight beam, and the receiving unit is disposed below the backlight module and receives the detection beam reflected by an external object through the backlight module.

5. The electronic device according to claim 1, further comprising a third optical film layer disposed on a lower surface of the first protective layer and above the emission unit, the third optical film layer being capable of transmitting infrared light or near-infrared light and blocking visible light; the first optical film layer and the second optical film layer are made of materials which reflect infrared light and absorb visible light, the third optical film layer is made of materials which transmit infrared light and absorb visible light, and the first optical film layer, the second optical film layer or the third optical film layer are formed on the upper surface and the lower surface of the first protective layer in a spraying, brushing and bonding mode.

6. The electronic device according to claim 4, wherein the display module further comprises a frame for receiving the backlight module and the display panel, the frame can be used for protecting the display panel and the backlight module, the frame is detachably connected or fixedly connected with the display panel and the backlight module, the transmitting unit is disposed between the display panel and a side surface of the frame, the receiving unit is disposed between the backlight module and a bottom surface of the frame, and the frame receives the receiving unit and the transmitting unit.

7. The electronic device of claim 4, wherein the backlight module comprises a light guide plate, a reflector disposed below the light guide plate, a diffuser disposed above the light guide plate, and a backlight source disposed on a side of the light guide plate, the backlight source is configured to provide a backlight beam for image display of the display panel, the light guide plate comprises a light exit surface opposite to the diffuser and a light entrance surface connected to the light exit surface, the light guide plate is configured to receive the backlight beam from the backlight source from the light entrance surface and emit the backlight beam from the light exit surface, the reflector is configured to reflect a portion of the backlight beam emitted from the bottom of the light guide plate into the light guide plate and transmit the detection beam, and the receiving unit is disposed adjacent to or spaced apart from the reflector.

8. The electronic device of claim 4, wherein the receiving unit comprises a light shield made of a light-impermeable material, and the light shield is used for blocking a backlight beam or a detection beam from the emitting unit from directly entering the receiving unit.

9. A detection module, comprising a detection module for the electronic device of claims 1-8.

10. A display module comprising the electronic device of claims 1-8.

Images