CN218788087U

CN218788087U - Photoelectric sensor, display module and electronic equipment

Info

Publication number: CN218788087U
Application number: CN202222875094.XU
Authority: CN
Inventors: 杨彦伟; 刘宏亮; 陆一锋; 邹颜
Original assignee: Core Technology Shenzhen Co ltd
Current assignee: Core Technology Shenzhen Co ltd
Priority date: 2022-10-29
Filing date: 2022-10-29
Publication date: 2023-04-04
Anticipated expiration: 2032-10-29

Abstract

The application provides a photoelectric sensor, a display assembly and an electronic device. The photoelectric sensor is used for locating one side of the non-display surface of the display screen, and comprises: the emitting part is used for emitting detection light, one part of the detection light is used for penetrating through the display screen to an object to be detected, and the other part of the detection light is used for reflecting on the display screen and forming crosstalk light; the receiving piece is used for receiving reflected light formed by reflection of the probe light on the surface of the object to be measured, and the receiving piece is also used for receiving the crosstalk light; and the light blocking piece is arranged between the emitting piece and the receiving piece and is used for blocking the crosstalk light from entering the receiving piece. The photoelectric sensor provided by the application can reduce or even eliminate crosstalk signals so as to improve the distance detection quality.

Description

Photoelectric sensor, display module and electronic equipment

Technical Field

The application relates to the field of electronic equipment, in particular to a photoelectric sensor, a display assembly and electronic equipment.

Background

With the development of science and technology, more and more photoelectric detection chips are applied to assist electronic equipment in distance detection, however, the photoelectric detection chips easily receive light reflected by the internal structure of the electronic equipment to generate crosstalk signals, thereby resulting in low quality of distance detection.

SUMMERY OF THE UTILITY MODEL

In a first aspect, an embodiment of the present application provides a photosensor, where the photosensor is configured to be disposed on a side of a non-display surface of a display screen, and the photosensor includes:

the emitting part is used for emitting detection light, one part of the detection light is used for penetrating through the display screen to an object to be detected, and the other part of the detection light is used for reflecting on the display screen and forming crosstalk light;

the receiving piece is used for receiving reflected light formed by reflection of the probe light on the surface of the object to be measured, and the receiving piece is also used for receiving the crosstalk light; and

the light blocking piece is arranged between the emitting piece and the receiving piece and used for blocking the crosstalk light from entering the receiving piece.

Wherein the photoelectric sensor further comprises:

the packaging piece is used for accommodating the emitting piece and the receiving piece, and is provided with a light outgoing area and a light incoming area, the light outgoing area is arranged corresponding to the emitting piece and is used for transmitting the detection light, and the light incoming area is arranged corresponding to the receiving piece and is used for transmitting the reflection light;

the orthographic projection of the light-blocking piece on the packaging piece at least partially falls between the light emergent area and the light incident area.

The light blocking piece and the packaging piece are of an integrated structure, the light blocking piece is of a protruding structure on the packaging piece, and the light blocking piece protrudes towards the display screen.

The light blocking piece and the packaging piece are arranged at intervals with the packaging piece in the direction of the emitting piece pointing to the light emergent area.

Wherein the light blocking member abuts against a non-display surface of the display screen.

The display screen comprises a light emitting layer, the light emitting layer comprises a plurality of light emitting units and an insulating layer arranged between any two adjacent light emitting units, and the orthographic projection of the light blocking piece on the display screen is located in the insulating layer.

Wherein the light blocking member is used for absorbing the crosstalk light, or the light blocking member is used for reflecting the crosstalk light.

The embodiment of the application provides a photoelectric sensor, photoelectric sensor is used for locating one side of the non-display surface of display screen, light blocking part locates the transmitter with between the receiver, in order to block the detection light that the transmitter sent is in the crosstalk light that the reflection formed on the display screen, thereby reduced or even eliminated the crosstalk light gets into the receiver, in order to reduce or even eliminate crosstalk signal in the receiver, and then reduce or even eliminate crosstalk signal is to photoelectric sensor with the influence of the distance calculation between the determinand has improved promptly photoelectric sensor's distance detection quality. Therefore, the photoelectric sensor provided by the embodiment of the application can reduce or even eliminate crosstalk signals to improve the distance detection quality.

In a second aspect, embodiments of the present application further provide a display assembly, including:

the display screen is provided with a display surface and a non-display surface which are arranged in a back-to-back manner; and

the photosensor according to the first aspect, wherein the photosensor is provided on one side of the non-display surface.

The embodiment of the application provides a display module, part the detecting light can the display screen reflection forms crosstalk light, hinder among the photoelectric sensor light-blocking piece and be used for blockking crosstalk light to reduce or even eliminated crosstalk light gets into receive the piece, in order to reduce or even eliminate crosstalk signal in receiving the piece, and then reduce or even eliminate crosstalk signal is right photoelectric sensor with the influence of the distance calculation between the determinand has improved promptly photoelectric sensor's distance detection quality, thereby has improved display module is right the detection quality of determinand.

In a third aspect, an embodiment of the present application further provides an electronic device, where the electronic device includes a housing, a processor, and the display module according to the second aspect, the housing has an accommodating space, the display module is installed in the housing, the processor is installed in the accommodating space, and the processor is electrically connected to the display screen, and the emitting element and the receiving element of the photoelectric sensor.

The embodiment of the application provides an electronic device, a photoelectric sensor in the electronic device can reduce or even eliminate crosstalk light received by the receiving part through the light blocking part, and therefore, the processor calculates that the distance between the electronic device and the object to be measured is little or not interfered by crosstalk signals. Therefore, the electronic equipment provided by the embodiment of the application has high distance detection quality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a photosensor according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a photosensor according to another embodiment of the present disclosure.

Fig. 3 is a schematic view illustrating a structure in which a light blocking member and a package are integrated according to an embodiment of the present disclosure.

Fig. 4 is a schematic view illustrating a structure in which a light blocking member and a package member are integrated according to another embodiment of the present disclosure.

Fig. 5 is a schematic structural view of the light blocking member and the package in an embodiment of the present application.

Fig. 6 is a schematic structural view of the light blocking member abutting the display screen in fig. 3.

Fig. 7 is a schematic structural view of the light blocking member abutting against the display screen in fig. 5.

Fig. 8 is a schematic structural view of the light blocking member of fig. 3 disposed corresponding to the insulating layer.

Fig. 9 is a schematic structural view of the light blocking member of fig. 5 disposed corresponding to the insulating layer.

Fig. 10 is a schematic structural diagram of a display module according to an embodiment of the present disclosure.

Fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Reference numerals: an electronic device 1; a display assembly 10; a photosensor 100; a transmitter 110; a receiving member 120; a light blocking member 130; a package 140; a light exit area 141; a light incident area 142; a display screen 200; a non-display surface 210; a light-emitting layer 220; a light emitting unit 221; an insulating layer 222; a display surface 230; a display area 240; a non-display area 250; a housing 20; an accommodation space 21; a processor 30; a probe light L10; reflected light L11; crosstalk light L12; and an analyte W0.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.

The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

The present embodiment provides a photosensor 100. Referring to fig. 1, fig. 1 is a schematic structural diagram of a photoelectric sensor according to an embodiment of the present disclosure. In the present embodiment, the photosensor 100 is provided on the non-display surface 210 side of the display panel 200. The photoelectric sensor 100 includes an emitting element 110, a receiving element 120, and a light blocking element 130. The emitting member 110 is used for emitting the detection light L10. A part of the probe light L10 is used to pass through the display screen 200 to the object W0 to be measured. Another part of the probe light L10 is used to be reflected at the display screen 200 and form crosstalk light L12. The receiving element 120 is configured to receive a reflected light L11 formed by reflecting the probe light L10 on the surface of the object W0. The receiving element 120 is further configured to receive the crosstalk light L12. The light blocking member 130 is disposed between the emitting member 110 and the receiving member 120, and is used for blocking the crosstalk light L12 from entering the receiving member 120.

In the present embodiment, the photosensor 100 is used for distance detection. Specifically, the photoelectric sensor 100 emits a detection light L10 to the object W0 to be measured, and receives a reflected light L11 formed by reflecting the detection light L10 on the surface of the object W0, so as to convert an optical signal into an electrical signal according to the reflected light L11, where the electrical signal can be used to calculate the distance between the photoelectric sensor 100 and the object W0 to be measured. The photoelectric sensor 100 may be applied to an unmanned vehicle, a mobile phone, a tablet Computer, a notebook Computer, a palm Computer, a Personal Computer (PC), a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a camera, and the like. For example, the photoelectric sensor 100 can be applied to proximity sensing of a mobile phone, a tablet computer, a notebook computer, a palm computer, a PC, a PDA, and a portable media player; or atmosphere detection of the camera, or the photoelectric sensors 100 forming the array realize the photographing function of the camera. It is to be understood that the above application field of the photosensor 100 should not be construed as limiting the photosensor 100 provided in the embodiments of the present application.

In the present embodiment, the photosensor 100 is provided on the non-display surface 210 side of the display panel 200. The photoelectric sensor 100 includes the emitting element 110, the receiving element 120, and the light blocking element 130. The receiving element 120 is spaced apart from the emitting element 110, and the light blocking element 130 is disposed between the emitting element 110 and the receiving element 120.

The emitting component 110 is configured to emit the detection light L10, and a part of the detection light L10 passes through the display screen 200 to the object W0 to be measured, and forms a reflected light L11 on the surface of the object W0 to be measured. Another portion of the probe light L10 is reflected on the display screen 200 and forms crosstalk light L12. The crosstalk light L12 is formed by reflecting the probe light L10 on the non-display surface 210 of the display screen 200, or is formed by reflecting the probe light L10 on an internal intermediate structure of the display screen 200, or is formed by reflecting the probe light L10 on the display surface 230 of the display screen 200. In one embodiment, a part of the probe light L10 passes through the display screen 200 to the object W0, and forms a reflected light L11 on the surface of the object W0, and the rest of the probe light L10 is reflected on the display screen 200 and forms a crosstalk light L12. In another embodiment, a part of the probe light L10 passes through the display screen 200 to the object W0 and forms a reflected light L11 on the surface of the object W0, another part of the probe light L10 is reflected on the display screen 200 and forms a crosstalk light L12, and another part of the probe light L10 passes through the display screen 200 but is not reflected by the object W0. In other embodiments, the probe light L10 further includes a portion that is reflected on the display screen 200 but does not form crosstalk light L12. The detection light L10 is Infrared (IR), and thus the emitting element 110 is also called an IR emitter. The wavelength of the detection light L10 is 780nm to 1mm, and specifically, the wavelength of the detection light L10 may be, but is not limited to, 780nm, or 940nm, or 1310nm, or 1mm, and the like.

The receiving element 120 is configured to receive the reflected light L11 and convert an optical signal corresponding to the reflected light L11 into an electrical signal according to the reflected light L11, and the receiving element 120 is referred to as a photo chip. Wherein the electrical signal can be used to calculate the distance between the photoelectric sensor 100 and the object W0. In addition, the receiving element 120 receives the crosstalk light L12 and converts the crosstalk light into a crosstalk signal according to an optical signal corresponding to the crosstalk light L12. The crosstalk signal may interfere with the electrical signal, thereby affecting the distance calculation between the photoelectric sensor 100 and the object W0.

The light blocking element 130 is disposed between the emitting element 110 and the receiving element 120, and is used for blocking the crosstalk light L12 from entering the receiving element 120, so as to reduce or even eliminate a crosstalk signal formed by the crosstalk light L12 in the receiving element 120, and further reduce or even eliminate an influence of the crosstalk signal on a distance calculation between the photoelectric sensor 100 and the object W0. The light blocking member 130 is made of a light reflecting material, or a light absorbing material, or a light reflecting layer or a light absorbing layer is disposed on a surface for blocking the crosstalk light L12, as long as the light blocking member 130 is opaque, so that the light blocking member 130 can block the crosstalk light L12 from entering the receiving member 120. Specifically, the light blocking member 130 is disposed on a path of the crosstalk light L12 entering the receiving member 120 from the display screen 200, and in an embodiment, the light blocking member 130 is disposed perpendicular to a direction in which the emitting member 110 points to the receiving member 120 to block the crosstalk light L12 from entering the receiving member 120. In another embodiment, the light blocking member 130 is disposed obliquely toward the receiving member 120 to block the crosstalk light L12 from entering the receiving member 120. In other embodiments, the light blocking member 130 is disposed parallel to the direction in which the emitting element 110 points to the receiving element 120, as long as the light blocking member 130 can block the crosstalk light L12 from entering the receiving element 120. In addition, the light blocking member 130 may have different shapes, in one embodiment, a surface of the light blocking member 130 blocking the crosstalk light L12 is a flat surface, in another embodiment, a surface of the light blocking member 130 blocking the crosstalk light L12 is a curved surface, and in other embodiments, a surface of the light blocking member 130 blocking the crosstalk light L12 is an irregular surface as long as the surface can block the crosstalk light L12 from entering the receiving member 120. It should be noted that fig. 1 illustrates that a plane of the light blocking member 130 blocking the crosstalk light L12 is a plane and is perpendicular to a direction in which the emitting element 110 points to the receiving element 120, and it should be understood that fig. 1 does not limit the shape and arrangement of the light blocking member 130 in the embodiment of the present application.

To sum up, the embodiment of the present application provides a photoelectric sensor 100, the photoelectric sensor 100 is used for locating one side of the non-display surface 210 of the display screen 200, the light blocking member 130 is located between the emitting member 110 and the receiving member 120 to block the detection light L10 emitted by the emitting member 110 from being reflected on the display screen 200 to form the crosstalk light L12, so as to reduce or even eliminate the crosstalk light L12 entering the receiving member 120 to reduce or even eliminate the crosstalk signal in the receiving member 120, and then reduce or even eliminate the influence of the crosstalk signal on the distance calculation between the photoelectric sensor 100 and the object to be detected W0, i.e. improve the distance detection quality of the photoelectric sensor 100. Therefore, the photoelectric sensor 100 provided by the embodiment of the present application can reduce or even eliminate crosstalk signals to improve the distance detection quality.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a photoelectric sensor according to another embodiment of the present disclosure. In this embodiment, the photosensor 100 further includes a package 140. The package 140 is used for accommodating the emitting element 110 and the receiving element 120. The package 140 has a light exit area 141 and a light entrance area 142. The light emitting area 141 is disposed corresponding to the emitting member 110 and is configured to transmit the probe light L10. The light incident area 142 is disposed corresponding to the receiving part 120, and is used for transmitting the reflected light L11. An orthogonal projection of the light blocking member 130 on the package 140 at least partially falls between the light exit area 141 and the light entrance area 142.

In the present embodiment, the light exit area 141 is provided corresponding to the emitter 110, and the detection light L10 emitted from the emitter 110 can pass through the light exit area 141. The light incident area 142 is disposed corresponding to the receiving part 120, and means that the reflected light L11 can penetrate through the light incident area 142 and be received by the receiving part 120. The package 140 may have, but is not limited to, a light exit at the light exit area 141, or a transparent material (e.g., transparent plastic, transparent glass, etc.), etc., as long as the probe light L10 can be transmitted therethrough. The package 140 may have, but is not limited to, a light inlet at the light inlet area 142, or a light-transmitting material (e.g., transparent plastic, transparent glass, or the like) or the like as long as the crosstalk light L12 can be transmitted therethrough.

In the present embodiment, an orthographic projection of the light blocking member 130 on the package 140 at least partially falls between the light exit area 141 and the light entrance area 142 to block the crosstalk light L12, so as to reduce or even eliminate the crosstalk light L12 from being received by the receiving member 120 through the light entrance area 142. In an embodiment, an orthographic projection portion of the light blocking member 130 on the package 140 falls between the light exit area 141 and the light entrance area 142, and another orthographic projection portion of the light blocking member 130 on the package 140 falls on the light entrance area 142 to block the crosstalk light L12, so as to reduce or even eliminate the crosstalk light L12 from being received by the receiving member 120 through the light entrance area 142. In another embodiment, the orthographic projection of the light blocking member 130 on the package 140 all falls between the light exit area 141 and the light entrance area 142, so that the light blocking member 130 can prevent the light blocking member 130 from blocking the reflected light L11 to be received by the receiving member 120 through the light entrance area 142 while blocking the crosstalk light L12, thereby reducing crosstalk signals and improving the strength of the electrical signals. In yet another embodiment, the orthographic projection of the light blocking member 130 on the package 140 all falls between the light exit area 141 and the light entrance area 142 and is adjacent to the light entrance area 142, so that the range of the light blocking member 130 blocking the crosstalk light L12 is increased while the light blocking member 130 prevents the reflected light L11 from being received by the receiving member 120 through the light entrance area 142, thereby further reducing or even eliminating the crosstalk light L12 from being received by the receiving member 120 through the light entrance area 142. It should be noted that, in fig. 2, an orthographic projection portion of the light blocking member 130 on the package 140 falls between the light exit region 141 and the light entrance region 142, and another orthographic projection portion of the light blocking member 130 on the package 140 falls on the light entrance region 142, and it is understood that fig. 2 does not limit an arrangement manner of the light blocking member 130 in the embodiment of the present application.

Referring to fig. 3 and 4, fig. 3 is a schematic view illustrating an integrated structure of a light blocking member and a package in an embodiment of the present application; fig. 4 is a schematic view illustrating a structure in which a light blocking member and a package member are integrated according to another embodiment of the present disclosure. In this embodiment, the light blocking member 130 and the package member 140 are of an integral structure, the light blocking member 130 is of a convex structure on the package member 140, and the light blocking member 130 protrudes toward the display screen 200.

In the present embodiment, the light blocking member 130 and the package 140 are formed as a single body, and it is understood that the light blocking member 130 capable of blocking the crosstalk light L12 is formed by changing the structure of the package 140. Specifically, in an embodiment, a protrusion structure protruding toward the display screen 200 is additionally arranged between the light exit area 141 and the light entrance area 142 of the package 140 to form the light blocking member 130. In another embodiment, a portion of the package 140 between the light exit area 141 and the light entrance area 142 is protruded toward the display panel 200 to form a protrusion structure, so as to form the light blocking member 130. The light blocking member 130 and the package member 140 are formed as an integrated structure, so that the light blocking member 130 and the package member 140 do not need to be assembled, and the stability of the integrated structure can be improved.

Referring to fig. 5, fig. 5 is a schematic structural view of a light blocking member and a package arranged at an interval in an embodiment of the present application. In this embodiment, the light blocking member 130 and the package 140 are spaced apart from the package 140 in a direction in which the emitting member 110 is directed to the light exiting region 141.

In the present embodiment, the light blocking member 130 is spaced apart from the package 140 to block the crosstalk light L12, so as to reduce or even eliminate the crosstalk light L12 from being received by the receiving member 120 through the light incident region 142. Specifically, in one embodiment, the light blocking member 130 is disposed closer to the package 140 than the display panel 200, and the light blocking member 130 is disposed closer to the light incident region 142 than the light emergent region 141, so as to block the crosstalk light L12 in a vicinity of the crosstalk light L12 entering the light incident region 142. In another embodiment, the light blocking member 130 is disposed closer to the display panel 200 than the package 140, and the light blocking member 130 is disposed closer to the light incident region 142 than the light emergent region 141 to block the crosstalk light L12 in a region near the display panel 200. In another embodiment, the light blocking member 130 is disposed in a middle region between the package 140 and the display panel 200, and the light blocking member 130 is disposed close to the light incident region 142 with respect to the light emergent region 141 to block the crosstalk light L12 in the middle region where the crosstalk light L12 is transmitted to the light incident region 142. It should be noted that, in fig. 5, the light blocking member 130 is disposed in the middle area between the package 140 and the display panel 200, and the light blocking member 130 is disposed close to the light incident area 142 relative to the light emergent area 141, and it should be understood that fig. 5 does not limit the disposition position of the light blocking member 130 in the embodiment of the present application.

Referring to fig. 6 and 7, fig. 6 is a schematic structural view of the light blocking member of fig. 3 abutting against the display screen; fig. 7 is a schematic structural view of the light blocking member abutting against the display screen in fig. 5. In the present embodiment, the light blocking member 130 abuts against the non-display surface 210 of the display panel 200.

In the present embodiment, the light blocking member 130 abuts on the non-display surface 210 of the display panel 200, so that the light blocking member 130 blocks the crosstalk light L12 in the vicinity of the non-display surface 210. Further, the light blocking member 130 abuts on a region where crosstalk light L12 formed by reflection of the probe light L10 on the display surface 230 enters the non-display surface 210, so that the light blocking member 130 can block the crosstalk light L12 in a region near the non-display surface 210 and reduce blocking of the reflected light L11.

When the light blocking member 130 and the package 140 are integrally formed, the light blocking member 130 can block the crosstalk light L12 in the vicinity of the non-display surface 210, block the crosstalk light L12 in the vicinity of the light incident area 142, and block the crosstalk light L12 in the middle area where the crosstalk signal is transmitted from the display panel 200 to the light incident area 142.

When the light blocking member 130 and the package 140 are disposed at an interval, the larger the dimension of the light blocking member 130 at the other end of the light blocking member 130 opposite to the end where the light blocking member 130 abuts against the non-display surface 210, the better the blocking effect of the light blocking member 130 on the crosstalk light L12.

Referring to fig. 3, fig. 5, fig. 8 and fig. 9, fig. 8 is a schematic structural view of the light-blocking member in fig. 3 disposed corresponding to the insulating layer; fig. 9 is a schematic structural view of the light blocking member of fig. 5 disposed corresponding to the insulating layer. In this embodiment, the display panel 200 includes a light emitting layer 220, and the light emitting layer 220 includes a plurality of light emitting units 221 and an insulating layer 222 disposed between any two adjacent light emitting units 221. The orthographic projection of the light blocker 130 on the display screen 200 falls within the insulating layer 222.

In this embodiment, the light-emitting layer 220 of the display panel 200 includes a plurality of light-emitting units 221 and an insulating layer 222 provided between any two adjacent light-emitting units. The light emitting unit 221 has light transmittance, and the insulating layer 222 is opaque. The orthographic projection of the light blocking member 130 on the display screen 200 falls within the insulating layer 222, so that the light blocking member 130 is blocked by the insulating layer 222 when viewed from the display surface 230 side, thereby improving the appearance of the photoelectric sensor 100 when applied to the display module 10. If the orthographic projection of the light blocking member 130 on the display screen 200 does not fall within the insulating layer 222, since the light blocking member 130 is closer to the display screen 200 than the package 140, the light blocking member 130 is easily observed from the display surface 230 side, so that when the photoelectric sensor 100 is applied to the display assembly 10, the light blocking member 130 is easily observed, thereby affecting the appearance of the display assembly 10, especially when the light blocking member 130 abuts against the non-display surface 210. Therefore, the orthographic projection of the light blocking member 130 on the display screen 200 in the present embodiment falls within the insulating layer 222, which can improve the appearance of the photoelectric sensor 100 when applied to the display assembly 10.

Referring to fig. 2 again, in the present embodiment, the light blocking member 130 is disposed closer to the light incident region 142 than the light exiting region 141 in a direction in which the emitting member 110 points to the receiving member 120.

In this embodiment, the light blocking member 130 is disposed closer to the light incident area 142 than the light exiting area 141, so that the light blocking member 130 blocks the crosstalk light L12 on a path along which the crosstalk light L12 is transmitted to the light incident area 142, and thus the crosstalk light L12 is reduced or even eliminated from being received by the receiving member 120 through the light incident area 142, so as to reduce or even eliminate a crosstalk signal in the receiving member 120, and further reduce or even eliminate an influence of the crosstalk signal on calculation of a distance between the photosensor 100 and the object W0, that is, improve accuracy of measuring the distance of the photosensor 100. If the light blocking member 130 is disposed closer to the light exit area 141 than the light entrance area 142, the light blocking member 130 blocks the detection light L10 on a path of the detection light L10 transmitted to the display screen 200, so as to interfere with the detection light L10, and further affect the formation of the reflected light L11, that is, interfere with the distance detection of the object W0 by the photoelectric sensor 100. If the light blocking member 130 is disposed in the intermediate region between the light entrance region 142 and the light exit region 141, if the dimension of the light blocking member 130 in the direction from the light entrance region 142 to the light exit region 141 is not large enough, the light blocking member 130 may not block the crosstalk light L12 formed by the probe light L10 reflected on the display surface 230. Therefore, in the embodiment, the light blocking member 130 is disposed closer to the light incident area 142 than the light exit area 141 in the direction in which the emitting element 110 points to the receiving element 120, so that the light blocking member 130 blocks the crosstalk light L12 on the path in which the crosstalk light L12 is transmitted to the light incident area 142, thereby reducing or even eliminating the crosstalk signal in the receiving element 120, and reducing or even eliminating the influence of the crosstalk signal on the calculation of the distance between the photoelectric sensor 100 and the object W0, that is, improving the distance measurement accuracy of the photoelectric sensor 100.

In addition, in the embodiment of the present application, the light blocking member 130 is configured to absorb the crosstalk light L12, or the light blocking member 130 is configured to reflect the crosstalk light L12. In one embodiment, the light blocking member 130 is a light absorbing material to absorb the crosstalk light L12, and the light absorbing material is a dark-colored and rough-surfaced material, for example, but not limited to, the light blocking member 130 may be a dark-colored and rough-surfaced wood material or a dark-colored and rough-surfaced plastic, etc. In another embodiment, the light blocking member 130 includes a light blocking body and a light absorbing layer disposed on a surface of the light blocking body, and the light absorbing layer is used for absorbing the crosstalk light L12. The light-absorbing layer can be formed by spraying dark ink to the light-blocking body or a dark plastic film. In yet another embodiment, the light blocking member 130 is a light reflecting material to reflect the crosstalk light L12, and the light reflecting material is a material with a flat surface, for example, but not limited to, the light blocking member 130 may be a mirror or a plastic with a smooth surface and a light color. In another embodiment, the light blocking member 130 includes a light blocking body and a light reflecting layer disposed on the light blocking body, and the light reflecting layer is configured to reflect the crosstalk light L12. The light-blocking body is light-tight, and the light-reflecting layer can be, but is not limited to, a fluorescent material or a crystal material.

The present embodiment also provides a display assembly 10. Referring to fig. 1 and 10, fig. 10 is a schematic structural diagram of a display module according to an embodiment of the present disclosure. In this embodiment, the display module 10 includes a display screen 200 and the photoelectric sensor 100 according to any one of the above embodiments. The display screen 200 has a display surface 230 and a non-display surface 210 arranged oppositely. The photosensor 100 is disposed on one side of the non-display surface 210.

In this embodiment, the display panel 200 has a display area 240 and a non-display area 250, the photosensor 100 is disposed corresponding to the display area 240, and the display area 240 is also referred to as a light window. The emitting element 110 in the photoelectric sensor 100 emits a detection light L10, the detection light L10 passes through the display screen 200 via the display area 240 and is reflected on the surface of the object W0 to form a reflection light L11, the reflection light L11 passes through the display screen 200 via the display area 240 and enters the receiving element 120 in the photoelectric sensor 100, the receiving element 120 converts an optical signal corresponding to the reflection light L11 into an electrical signal according to the reflection light L11, and the electrical signal can be used for calculating the distance between the photoelectric sensor 100 and the object W0. In this process, a part of the detection light L10 may be reflected on the display screen 200 to form crosstalk light L12, and the light blocking element 130 in the photosensor 100 is used to block the crosstalk light L12, so as to reduce or even eliminate the crosstalk light L12 entering the receiving element 120, so as to reduce or even eliminate a crosstalk signal in the receiving element 120, and further reduce or even eliminate an influence of the crosstalk signal on the distance calculation between the photosensor 100 and the object W0, that is, improve the distance detection quality of the photosensor 100, and thus improve the detection quality of the display assembly 10 on the object W0. The display screen 200 may be, but not limited to, an OLED screen, an LED screen, or an LCD screen.

The embodiment of the application also provides the electronic equipment 1. Referring to fig. 1, 10 and 11, fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 1 in this embodiment includes a housing 20, a processor 30, and a display assembly 10. The housing 20 has a receiving space 21. The display assembly 10 is mounted to the housing 20. The processor 30 is disposed in the accommodating space 21, and the processor 30 is electrically connected to the display screen 200, the emitting element 110 and the receiving element 120 of the photoelectric sensor 100.

In the present embodiment, the electronic device 1 may be, but not limited to, a device having a display screen 200, such as an unmanned vehicle, a mobile phone, a tablet computer, a notebook computer, a palm top computer, a PC, a PDA, a PMP, and a camera device. The electronic device 1 has a distance detection function. Specifically, the processor 30 is configured to control the emitting element 110 of the photoelectric sensor 100 to emit the detection light L10, and after the receiving element 120 of the photoelectric sensor 100 receives the reflected light L11 and converts an optical signal corresponding to the reflected light L11 into an electrical signal, the processor 30 is further configured to calculate the distance between the electronic device 1 and the object W0 according to the electrical signal. Since the photoelectric sensor 100 in the embodiment of the present application can reduce or even eliminate the crosstalk light L12 received by the receiving element 120 through the light blocking element 130, the processor 30 calculates that the distance between the electronic device 1 and the object W0 is little or not interfered by the crosstalk signal. Therefore, the electronic device 1 according to the embodiment of the present application has high distance detection quality.

Although embodiments of the present application have been shown and described, it is understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present application, and that such changes and modifications are also to be considered as within the scope of the present application.

Claims

1. A photoelectric sensor, wherein the photoelectric sensor is arranged on one side of a non-display surface of a display screen, and the photoelectric sensor comprises:

2. The photosensor of claim 1 further comprising:

the orthographic projection of the light blocking piece on the packaging piece at least partially falls between the light emergent area and the light incident area.

3. The photosensor of claim 2 wherein the light blocking member is a unitary structure with the package, the light blocking member is a raised structure on the package, and the light blocking member is raised in a direction toward the display screen.

4. The photosensor according to claim 2, wherein the light blocking member and the package are disposed apart from the package in a direction in which the emitting member is directed to the light exit region.

5. The photosensor of claim 3 or 4 wherein the light blocking member abuts a non-display surface of the display screen.

6. The photosensor according to claim 3 or 4, wherein the display screen comprises a light-emitting layer, the light-emitting layer comprises a plurality of light-emitting units and an insulating layer provided between any two adjacent light-emitting units, and an orthographic projection of the light-blocking member on the display screen falls within the insulating layer.

7. The photosensor according to claim 2, wherein the light blocking member is disposed closer to the light entrance area than the light exit area in a direction in which the emitting member is directed toward the receiving member.

8. The photosensor according to claim 1, wherein the light blocking member is for absorbing the crosstalk light or the light blocking member is for reflecting the crosstalk light.

9. A display assembly, the display assembly comprising:

the photosensor of any of claims 1-8, disposed on a side of the non-display surface.

10. An electronic device, comprising a housing, a processor, and the display module of claim 9, wherein the housing has an accommodating space, the display module is mounted on the housing, the processor is disposed in the accommodating space, and the processor is electrically connected to the display screen, the emitting element and the receiving element of the photosensor.