CN113739912B

CN113739912B - Optical signal detection module and light intensity detection method

Info

Publication number: CN113739912B
Application number: CN202010478584.9A
Authority: CN
Inventors: 江忠胜
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2024-05-10
Anticipated expiration: 2040-05-29
Also published as: CN113739912A

Abstract

The disclosure relates to an optical signal detection module and a light intensity detection method, the optical signal detection module includes: the light intensity sensor is used for collecting light signals for light intensity detection; the distance sensor is used for collecting light signals for distance detection; the light intensity signal processing circuit is connected to the light intensity sensor and is used for processing the light ray signals acquired by the light intensity sensor to generate light intensity signals; the distance signal processing circuit is connected to the distance sensor and is used for processing the light ray signals acquired by the distance sensor to generate distance signals; and the control unit is respectively connected to the light intensity signal processing circuit and the distance signal processing circuit and is used for generating environmental light intensity information according to the light intensity signal output by the light intensity signal processing circuit and generating distance information for distance detection according to the distance signal output by the distance signal processing circuit.

Description

Optical signal detection module and light intensity detection method

Technical Field

The disclosure relates to the field of communications, and in particular, to an optical signal detection module and a light intensity detection method.

Background

In order to bring better visual experience to users, manufacturers can add light intensity sensors into electronic equipment such as mobile phones and flat plates so as to detect light intensity signals of environments where the users are located in real time and adjust brightness of a screen.

In the related art, a light intensity sensor is generally disposed above a display screen. The arrangement mode not only occupies a certain equipment layout space independently, but also limits the screen occupation ratio of the electronic equipment; in practical application, due to the fact that the light intensity sensor is shielded by articles, misjudgment is caused on light intensity information of the environment where the electronic equipment is located, and further display brightness of the display screen is adjusted wrongly, so that poor use experience is brought to users.

Disclosure of Invention

In view of the above, the disclosure provides an optical signal detection module and a light intensity detection method, which can preferentially judge whether a light intensity sensor is blocked by a distance sensor before light intensity detection, so as to avoid misjudgment of light intensity information of an environment where electronic equipment is located due to the blocked light intensity sensor.

In order to achieve the above object, the present disclosure provides the following technical solutions:

According to a first aspect of the present disclosure, an optical signal detection module is provided, including:

the light intensity sensor is used for collecting light signals for light intensity detection;

the distance sensor is used for collecting light signals for distance detection;

The light intensity signal processing circuit is connected to the light intensity sensor and is used for processing the light ray signals acquired by the light intensity sensor to generate light intensity signals;

The distance signal processing circuit is connected to the distance sensor and is used for processing the light ray signals acquired by the distance sensor to generate distance signals;

and the control unit is respectively connected to the light intensity signal processing circuit and the distance signal processing circuit and is used for generating environmental light intensity information according to the light intensity signal output by the light intensity signal processing circuit and generating distance information for distance detection according to the distance signal output by the distance signal processing circuit.

According to a second aspect of the present disclosure, there is provided a touch display module, including:

A glass cover sheet layer;

a touch layer, the sensing side of the touch layer facing the glass cover plate layer;

A display layer having a light-emitting side facing a non-sensing side of the touch layer;

The light intensity detection and distance detection layer comprises the optical signal detection module according to the first aspect, and the light incident side of the light intensity detection and distance detection layer faces the non-light emergent side of the display layer.

According to a third aspect of the present disclosure, there is provided an electronic device comprising:

The touch display module and the optical signal detection module according to the first aspect, wherein the assembly position of the optical signal detection module corresponds to a fingerprint identification area formed on the touch display module; or alternatively

The touch display module of the second aspect.

According to a fourth aspect of the present disclosure, a light intensity detection method is provided, which is applied to an electronic device, where the electronic device includes the optical signal detection module according to the first aspect, or the electronic device is according to the third aspect; the method comprises the following steps:

Collecting light signals for distance detection through a distance sensor in the optical signal detection module; inputting the light ray signals acquired by the distance sensor into a distance signal processing circuit in the optical signal detection module to generate distance information according to the distance signals output by the distance signal processing circuit;

Under the condition that the distance information meets the preset condition, acquiring a light signal for light intensity detection by a light intensity sensor in the optical signal detection module; inputting the light ray signals into a light intensity signal processing circuit in the optical signal detection module to generate environmental light ray intensity information according to the light intensity signals output by the light intensity signal processing circuit;

and taking the ambient light intensity information as a light intensity detection result of the electronic equipment in the current environment.

According to a fifth aspect of the present disclosure, a light intensity detection method is provided, and the light intensity detection method is applied to an electronic device, where the electronic device includes an optical fingerprint module, and the optical fingerprint module includes a light sensing unit, a signal processing unit and a first control unit, which are sequentially connected in series; a distance detection module is arranged in a preset distance of the optical fingerprint module, and the distance detection module comprises a distance sensor, a distance signal processing circuit and a second control unit which are sequentially connected in series; the method comprises the following steps:

Collecting light signals for distance detection through a distance sensor in the distance detection module; inputting the light ray signals acquired by the distance sensor into a distance signal processing circuit in the light intensity detection module to generate distance information according to the distance signals output by the distance signal processing circuit;

Under the condition that the distance information meets the preset condition, acquiring a light signal for light intensity detection by a light sensing unit in the optical fingerprint module; inputting the light signal for light intensity detection into a signal processing unit in the optical fingerprint module to generate environmental light intensity information according to the light intensity signal output by the signal processing unit;

According to a sixth aspect of the present disclosure, there is provided a light intensity detection device applied to an electronic apparatus, the electronic apparatus including the optical signal detection module as described in the first aspect, or the electronic apparatus as described in the third aspect; the device comprises:

The first generation unit is used for collecting light signals for distance detection through a distance sensor in the optical signal detection module; inputting the light ray signals acquired by the distance sensor into a distance signal processing circuit in the optical signal detection module to generate distance information according to the distance signals output by the distance signal processing circuit;

The second generation unit is used for collecting light signals for light intensity detection through a light intensity sensor in the optical signal detection module under the condition that the distance information meets the preset condition; inputting the light ray signals into a light intensity signal processing circuit in the optical signal detection module to generate environmental light ray intensity information according to the light intensity signals output by the light intensity signal processing circuit;

and the detection unit is used for taking the ambient light intensity information as a light intensity detection result of the electronic equipment in the current environment.

According to a seventh aspect of the present disclosure, a light intensity detection device is provided, and the light intensity detection device is applied to an electronic device, where the electronic device includes an optical fingerprint module, and the optical fingerprint module includes a light sensing unit, a signal processing unit, and a first control unit, which are sequentially connected in series; a distance detection module is arranged in the preset distance of the optical fingerprint module, and the light intensity detection module comprises a distance sensor, a distance signal processing circuit and a second control unit which are sequentially connected in series; the device comprises:

The first generation unit is used for collecting light signals for distance detection through a distance sensor in the distance detection module; inputting the light ray signals acquired by the distance sensor into a distance signal processing circuit in the light intensity detection module to generate distance information according to the distance signals output by the distance signal processing circuit;

The second generation unit is used for collecting light signals for light intensity detection through a light sensing unit in the optical fingerprint module under the condition that the distance information meets the preset condition; inputting the light signal for light intensity detection into a signal processing unit in the optical fingerprint module to generate environmental light intensity information according to the light intensity signal output by the signal processing unit;

According to an eighth aspect of the present disclosure, there is provided an electronic device comprising:

A processor;

a memory for storing processor-executable instructions;

wherein the processor implements the method of the fourth or fifth aspect by executing the executable instructions.

According to a ninth aspect of the present disclosure there is provided a computer readable storage medium having stored thereon computer instructions which when executed by a processor implement the steps of the method according to the fourth or fifth aspect.

In the technical scheme of the disclosure, integrate light intensity sensor and distance sensor to same optical signal detection module in for physical position between light intensity sensor and the distance sensor is more similar, on this basis, can judge whether light intensity sensor is sheltered from by the object through the distance sensor, and then avoid under the circumstances that light intensity sensor is sheltered from, the mistake is regarded as the light intensity of the environment that the electronic equipment that is equipped with this optical signal detection module was located with light intensity around the light intensity sensor. In other words, through the optical signal detection module, whether the light intensity sensor is shielded or not can be judged through the distance sensor, and the aim of accurately detecting the intensity information of the ambient light is achieved.

Drawings

Fig. 1 is a schematic diagram of a smart phone with a light intensity sensor and a distance sensor separately arranged, as shown in an exemplary embodiment of the present disclosure.

Fig. 2 is one of the logic diagrams of an optical signal detection module according to an exemplary embodiment of the disclosure.

Fig. 3 is a second schematic diagram of an optical signal detection module according to an exemplary embodiment of the disclosure.

Fig. 4 is a third schematic diagram of an optical signal detection module according to an exemplary embodiment of the disclosure.

Fig. 5 is a schematic diagram of an optical signal detection module according to an exemplary embodiment of the disclosure.

Fig. 6 is a schematic diagram of a touch display module according to an exemplary embodiment of the disclosure.

Fig. 7 is a schematic structural view of an electronic device equipped with an optical signal detection module according to an exemplary embodiment of the present disclosure.

Fig. 8A is a flowchart illustrating a light intensity detection method according to an exemplary embodiment of the present disclosure.

Fig. 8B is a flowchart illustrating another light intensity detection method according to an exemplary embodiment of the present disclosure.

Fig. 9A is a block diagram of a light intensity detection device according to an exemplary embodiment of the present disclosure.

FIG. 9B is a block diagram of another light intensity detection device according to an exemplary embodiment of the present disclosure

Fig. 10 is a block diagram of another light intensity detection device according to an exemplary embodiment of the present disclosure.

Fig. 11 is a block diagram illustrating an apparatus 1100 for implementing a light intensity detection method according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" depending on the context.

In the related art, a light intensity sensor and a distance sensor are generally disposed outside a touch display module (also referred to as a touch screen) of an electronic device, respectively. Taking the smart phone as shown in fig. 1 as an example, a touch display module 11, a light intensity sensor 12, a distance sensor 13 and the like are mounted on the front surface of the smart phone. The arrangement mode not only affects the appearance of the smart phone, but also reduces the screen occupation ratio of the smart phone.

In addition, under a specific scene, for example, under the condition that the light intensity sensor is shielded, the result obtained by light intensity detection is the result when the light intensity sensor is shielded by an object, and is not the actual ambient light intensity, so that the screen brightness adjustment performed according to the light intensity detection result is inconsistent with the actual requirement, and bad use experience is brought to a user.

In view of this, the disclosure provides an optical signal detection module for improving the accuracy of detecting the intensity of ambient light.

FIG. 2 is a schematic diagram of an optical signal detection module according to an exemplary embodiment of the present disclosure; as shown in fig. 2, the optical signal detection module may include: a light intensity sensor 211, a distance sensor 212, a light intensity signal processing circuit 221, a distance signal processing circuit 222, and a control unit 23. Wherein,

The light intensity sensor 211 is used for collecting light signals for light intensity detection;

a distance sensor 212 for collecting light signals for distance detection;

A light intensity signal processing circuit 221, connected to the light intensity sensor, for processing the light ray signals collected by the light intensity sensor to generate light intensity signals;

the distance signal processing circuit 222 is connected to the distance sensor and is used for processing the light ray signals acquired by the distance sensor to generate distance signals;

and a control unit 23 connected to the light intensity signal processing circuit and the distance signal processing circuit, respectively, for generating ambient light intensity information according to the light intensity signal output by the light intensity signal processing circuit, and generating distance information for distance detection according to the distance signal output by the distance signal processing circuit.

In one embodiment, the optical signal detection module includes only the light intensity sensor 211, the distance sensor 212, the light intensity signal processing circuit 221, the distance signal processing circuit 222 and the control unit 23 as shown in fig. 2. In this embodiment, the light intensity sensor and the distance sensor are integrated into a unified module based on the related art, so that the physical positions of the two sensors are relatively close. On the basis, before light intensity detection, whether the light intensity sensor is shielded or not can be judged through the distance sensor, and then the light intensity detection is not carried out under the condition that the light intensity sensor is shielded, so that the adjustment of the screen brightness according to wrong light intensity information is avoided; or under the condition that the light intensity sensor is shielded, the light intensity detection is still carried out, but the operation of adjusting the screen brightness according to the light intensity detection result is not carried out, so that the use experience of a user is prevented from being reduced. Furthermore, in practical application, the optical signal detection module integrated with the light intensity sensor and the fingerprint sensor can be assembled into the touch display module, so that the influence of the light intensity sensor and the distance sensor on the screen duty ratio of the electronic equipment is avoided.

In another embodiment, in addition to the above structure, it may further include: the fingerprint sensor 213 and the fingerprint signal processing circuit 223 have the logic structure shown in fig. 3. The fingerprint sensor 213 is used for collecting a light signal for fingerprint identification; a fingerprint signal processing circuit 223, one end of which is connected to the fingerprint sensor 213, and the other end of which is connected to the control unit 23, for processing the light signal collected by the fingerprint sensor 213 to generate a fingerprint signal; the control unit 23 is further configured to generate fingerprint information for fingerprint identification from the fingerprint signal output from the fingerprint signal processing circuit 223. In this embodiment, the fingerprint sensor, the light intensity sensor and the distance sensor are integrated into the same module. It should be understood that, since in practical application, the fingerprint sensor is usually arranged in the touch display module of the electronic device, so that the light intensity sensor and the distance sensor are not separately arranged outside the touch display module any more, and the problem that the screen occupation ratio is affected due to the separate arrangement of the light intensity sensor and the distance sensor is avoided. Secondly, because the light intensity sensor and the distance sensor are arranged in the same module, the electronic equipment provided with the module can judge whether the light intensity sensor is shielded or not based on the distance sensor, so that light intensity detection is avoided under the condition that the light intensity sensor is shielded, or screen brightness is adjusted according to the light intensity detection result under the condition that the light intensity sensor is shielded.

In still another embodiment, in addition to the above structure, it may further include: the fingerprint signal processing circuit 223 and the circuit gate switch 24 are logically constructed as shown in fig. 4. The fingerprint signal processing circuit 223 is configured to process the light signal collected by the light intensity sensor 211 to generate a fingerprint signal; a circuit gate switch 24 having one end connected to the light intensity sensor 211 and the other end connected to the light intensity signal processing circuit 221 or the fingerprint signal processing circuit 223; the light intensity sensor 211 is also used for collecting light signals for fingerprint identification; and the control unit 23 is further connected to the fingerprint signal processing circuit 223 for generating fingerprint information for fingerprint recognition from the fingerprint signal output from the fingerprint signal processing circuit 223. In this embodiment, the fingerprint sensor is multiplexed into the light intensity sensor, and the distance sensor is integrated into the module where the fingerprint sensor is located. It should be appreciated that since in practical applications, the fingerprint sensor is typically arranged within a touch display module of an electronic device. The distance sensor is not independently arranged outside the touch display module, so that the problem that the screen occupation ratio is influenced due to the fact that the distance sensor is independently arranged is avoided; and secondly, as the fingerprint sensor is multiplexed into the light intensity sensor, the light intensity sensor does not need to be arranged independently, and the problem that the screen duty ratio is influenced due to the independent arrangement of the light intensity sensor is avoided. Further, since the fingerprint sensor and the distance sensor multiplexed into the light intensity sensor are arranged in the same module, the electronic device equipped with the module can judge whether the fingerprint sensor is shielded or not based on the distance sensor, thereby avoiding light intensity detection under the condition that the fingerprint sensor is shielded, or adjusting screen brightness through the light intensity detection result under the condition that the fingerprint sensor is shielded. Still further, because multiplexing fingerprint sensor as light intensity sensor, reduced the sensor quantity that needs to arrange, reduced hardware cost.

In still another embodiment, in addition to the above structure, the method may further include: the fingerprint sensor 213 and the sensor gate switch 25 are logically constructed as shown in fig. 5. The fingerprint sensor 213 is used for collecting a light signal for fingerprint identification; a sensor gate switch 25 having one end connected to the light intensity signal processing circuit 221 and the other end connected to the light intensity sensor 211 or the fingerprint sensor 213; the light intensity signal processing circuit 221 is further configured to process the light signal collected by the fingerprint sensor 213, and generate a fingerprint signal; the control unit 23 is further configured to generate fingerprint information for fingerprint identification according to the fingerprint signal output from the light intensity signal processing circuit 221. In this embodiment, the fingerprint sensor, the light intensity sensor and the distance sensor are integrated into the same module. It should be understood that, since in practical application, the fingerprint sensor is usually arranged in the touch display module of the electronic device, so that the light intensity sensor and the distance sensor are not separately arranged outside the touch display module any more, and the problem that the screen occupation ratio is affected due to the separate arrangement of the light intensity sensor and the distance sensor is avoided. Secondly, because the light intensity sensor and the distance sensor are arranged in the same module, the electronic equipment provided with the module can judge whether the light intensity sensor is shielded or not based on the distance sensor, so that light intensity detection is avoided under the condition that the light intensity sensor is shielded, or screen brightness is adjusted according to the light intensity detection result under the condition that the light intensity sensor is shielded. Further, the light intensity signal processing circuit in this embodiment is used for processing the light signal collected by the light intensity sensor and also used for processing the light signal collected by the fingerprint sensor. It should be appreciated that since the light intensity sensor is typically integrated into the module in which the fingerprint sensor is located in actual operation, the fingerprint signal processing circuit is typically multiplexed into the light intensity signal processing circuit. By the method, namely the fingerprint sensor and the light intensity sensor share the signal processing circuit, the signal processing circuit which needs to be arranged is reduced, and the hardware cost is reduced.

In the present disclosure, the distance sensor should be arranged within a preset distance of the light intensity sensor. The preset distance is generally smaller, so that the physical position between the distance sensor and the light intensity sensor is ensured to be close, and then when the distance sensor detects that the distance corresponding to the distance information is smaller, the light intensity sensor is determined to be shielded.

In the present disclosure, the light intensity signal processing circuit 221 may include: the first amplifying circuit, the first filter circuit and the first analog-to-digital conversion circuit are sequentially connected in series. The first light intensity signal processing circuit 221 can be regarded as a rectifying circuit, and can effectively solve the problems of clutter, weak signals and the like of the collected light signals, and generate light intensity signals for light intensity detection based on the collected light signals. Similarly, the distance signal processing circuit 222 may include: the second amplifying circuit, the second filtering circuit and the second analog-to-digital conversion circuit are sequentially connected in series. The distance signal processing circuit 222 can also be regarded as a rectifying circuit, which can effectively solve the problems of clutter, weak signals and the like of the collected light signals, and generate a light intensity signal for light intensity detection based on the collected light signals. The same is true of the fingerprint signal processing circuit 223, and the description thereof is omitted herein.

In the present disclosure, since the distance signal is not detected by natural light, a distance signal emitting end may be further included to emit a light signal for distance detection. The distance signal transmitting end may be disposed in the optical signal detecting module or may be disposed outside the optical signal detecting module, which is not limited.

In the present disclosure, the distance sensor may be an infrared sensor commonly used in electronic devices, or may be a laser ranging sensor for ranging. It should be understood that the distance sensor in the present disclosure may be any sensor capable of performing a ranging function, as the present disclosure is not limited in this regard.

The control unit in the present disclosure may be an MCU (Microcontroller Unit, micro control unit), a DSP (DIGITAL SIGNAL processor ), a CPU (central processing unit, central processing unit). Of course, this example is merely illustrative, and it should be understood that hardware capable of generating ambient light intensity information based on the light intensity signal and capable of generating fingerprint information for fingerprint identification based on the fingerprint signal may be used as the control unit described above, which is not limited by the present disclosure.

According to the optical signal detection module, the light intensity sensor and the distance sensor are integrated into the same module, so that whether the light intensity sensor is shielded or not can be judged according to the distance sensor, light intensity detection is avoided under the condition of being shielded, and the accuracy of the light intensity detection is improved; or the screen brightness of the electronic equipment can be prevented from being adjusted according to the result of light intensity detection under the condition of being blocked, so that the screen brightness is prevented from being adjusted according to the wrong detection result, and bad use experience is brought to a user.

Further, the fingerprint sensor is integrated in the optical signal detection module, and the fingerprint sensor is arranged in the touch reality module, so that the light intensity sensor and the distance sensor are not independently arranged any more, and the problem that the light intensity sensor and the distance sensor are independently arranged to influence the screen duty ratio is avoided.

Still further, the present disclosure may also multiplex the fingerprint sensor into a light intensity sensor, or the light intensity sensor and the fingerprint sensor share the same signal processing circuit, which makes the present disclosure reduce the number of sensors or the number of signal processing circuits to be arranged and reduce hardware cost compared to the related art.

Fig. 6 is a schematic diagram of a touch display module according to an exemplary embodiment of the disclosure. As shown in fig. 6, the touch display module includes:

a glass cover sheet layer 61;

A touch layer 62, the sensing side of which faces the glass cover sheet layer;

a display layer 63 having a light-emitting side facing a non-sensing side of the touch layer;

The light intensity detection and distance detection layer 64 comprises an optical signal detection module as described above, with the light-in side of the light intensity detection and distance detection layer facing the non-light-out side of the display layer.

In this embodiment, the glass cover plate layer 61 is made of transparent glass material for protecting the touch display module. The sensing side of the touch layer 62 may generate a corresponding touch signal based on the touch position of the user, and the manner of generating the touch signal may be, for example, a capacitive screen sensing manner or a resistive screen sensing manner, which is not limited herein. The display layer 63 is also called a light emitting layer, and can display a corresponding screen according to a control signal. The light intensity detection and distance detection layer 64 includes an optical signal detection module as described above.

In this embodiment, the optical signal detection module may be disposed in the fingerprint recognition area of the touch display module, and integrated with the fingerprint sensor disposed in the fingerprint recognition area into the same module, so as to improve the integration level of the sensor.

The light intensity detection and distance detection layer of the touch display module comprises the optical signal detection module. Therefore, the distance detection and the light intensity detection are performed in the touch display module, so that the electronic device adopting the touch display module does not need to arrange the distance sensor and the light intensity sensor independently, and has a higher screen occupation ratio compared with the electronic device which is arranged with the distance sensor and the light intensity sensor outside the touch display module.

Fig. 7 is an electronic device, as shown in fig. 7, according to an exemplary embodiment of the present disclosure, including:

A touch display module 71 and an optical signal detection module 72 as described above, the assembly position of the optical signal detection module corresponding to a fingerprint recognition area 73 formed on the touch display module; or alternatively

The touch display module is as described in fig. 6.

In the present embodiment, the user can touch the fingerprint recognition area 73 with a finger to cause the electronic device to perform the fingerprint recognition operation.

In actual operation, in order to accurately detect the fingerprint of the user, the optical signal detection module 72 is regularly distributed with a plurality of fingerprint sensors, and in one case, the light intensity sensor and the distance sensor may be disposed between or around the plurality of fingerprint sensors; in another case, the distance sensors are arranged between or around the plurality of fingerprint sensors, and at least one of the plurality of fingerprint sensors is multiplexed as a light intensity sensor, so that the number of sensors to be arranged is reduced. In yet another case, the light intensity sensor and the distance sensor may be arranged between or around the plurality of fingerprint sensors while having one of the light intensity sensor and the plurality of fingerprint sensors share a signal processing circuit. Compared with the layout mode in the related art, the layout mode has the advantages that the positions of the distance sensor and the light intensity sensor are moved to the fingerprint identification area of the touch display module from outside the touch display module, and the distance sensor and the light intensity sensor are prevented from being independently arranged.

The electronic device in this embodiment assembles the optical signal detection module to the position corresponding to the fingerprint identification area, and it can be seen that the light intensity sensor or the distance sensor is disposed in the touch display module, so that the problem of reducing the screen occupation ratio due to the separate disposition of the distance sensor is avoided.

FIG. 8A is a flow chart of a light intensity detection method according to an exemplary embodiment of the present disclosure, applied to an electronic device including an optical signal detection module as described above, or as described in claim 7; the method may comprise the steps of:

step 802A, collecting a light signal for distance detection by a distance sensor in the optical signal detection module; and inputting the light ray signals acquired by the distance sensor into a distance signal processing circuit in the optical signal detection module to generate distance information according to the distance signals output by the distance signal processing circuit.

In this embodiment, the distance sensor in the optical signal detection module is used to determine whether the light intensity sensor is blocked, so as to avoid the light intensity detection of the light intensity sensor under the condition of being blocked, and further improve the accuracy of the light intensity detection; or the electronic equipment is prevented from taking the light intensity detection result obtained by detection under the shielding condition as the ambient light intensity information, and the screen brightness of the electronic equipment is prevented from being adjusted wrongly.

Step 804A, collecting a light signal for light intensity detection by a light intensity sensor in the optical signal detection module under the condition that the distance information meets a preset condition; and inputting the light ray signals into a light intensity signal processing circuit in the optical signal detection module to generate environmental light ray intensity information according to the light intensity signals output by the light intensity signal processing circuit.

In this embodiment, the preset condition refers to a condition that can prove that the light intensity sensor is not blocked. In the embodiment, the distance information is acquired through the distance sensor in the optical signal detection module, so that whether the light intensity sensor is shielded or not is judged. In this case, a distance threshold may be preset to determine whether there is an object shielding by comparing the distance threshold with a distance corresponding to the detected distance information. Specifically, whether the distance corresponding to the obtained distance information is larger than a distance threshold value or not can be judged, and if so, it is determined that the light intensity sensor is not shielded, and then light intensity detection can be performed; if not, the fact that the object shields the light intensity sensor is proved, and the light intensity information obtained by current light intensity detection is not the light intensity information of the current environment of the electronic equipment.

In practical application, accidental factors and special interference are unavoidable, for example, when a finger does not completely shield the light intensity sensor but is suspended above the light intensity sensor, the lowest part is closer to the screen, the light intensity sensor is slightly shielded, but the light intensity around the light intensity sensor is not greatly different from the ambient light intensity. At this time, if the optical information number detection module includes a plurality of distance sensors, the distance information corresponding to the plurality of distance sensors may be determined first, and whether the distance corresponding to the plurality of distance information is greater than a threshold value may be determined, and based on the determination result, the number of distance information greater than the distance threshold value may be determined; on the basis, whether the number is larger than the preset number can be further judged, if yes, the shielding is proved to be not serious, and light intensity detection can be carried out, namely, the preset condition is met. In addition, after the distance information that the distance is greater than the distance threshold value is determined, the positions of the distance sensors corresponding to the distance information are determined, the area covered by the distance sensors in the touch display module is further determined, and when the area is greater than the distance threshold value, the shielding is proved to be not serious, and the light intensity detection can be performed.

Of course, the above setting of the preset conditions is merely illustrative, and it should be understood that only the condition that the light intensity sensor is not blocked needs to be proven as the preset condition of the present embodiment, and those skilled in the art can determine the preset condition according to the actual requirement, which is not limited in this disclosure.

And step 806A, taking the ambient light intensity information as a light intensity detection result of the electronic equipment in the current environment.

According to the technical scheme, the electronic equipment in the embodiment is provided with the optical signal detection module, and the optical signal detection module is integrated with the distance sensor and the light intensity sensor, so that whether the light intensity sensor is shielded or not can be judged through the distance sensor, further, light intensity detection is avoided under the condition that the light intensity sensor is shielded, and the accuracy of the light intensity detection is improved.

Fig. 8B is a flowchart of another light intensity detection method according to an exemplary embodiment of the present disclosure, which is applied to an electronic device, where the electronic device includes an optical fingerprint module, and the optical fingerprint module includes a light sensing unit, a signal processing unit, and a first control unit that are sequentially connected in series; the optical fingerprint module is characterized in that a distance detection module is arranged in a preset distance of the optical fingerprint module, and the light intensity detection module comprises a distance sensor, a distance signal processing circuit and a second control unit which are sequentially connected in series, and the method can comprise the following steps:

step 802B, collecting a light signal for distance detection by a distance sensor in the distance detection module; and inputting the light ray signals acquired by the distance sensor into a distance signal processing circuit in the distance detection module to generate distance information according to the distance signals output by the distance signal processing circuit.

Step 804B, collecting a light signal for light intensity detection by a light sensing unit in the optical fingerprint module under the condition that the distance information meets a preset condition; and inputting the light signal for light intensity detection into a signal processing unit in the optical fingerprint module to generate environmental light intensity information according to the light intensity signal output by the signal processing unit.

And step 806B, taking the ambient light intensity information as a light intensity detection result of the electronic device in the current environment.

Similar to the previous embodiment, the present embodiment still preferentially judges whether the sensor is blocked by the object through the distance sensor, and only performs light intensity detection when it is determined that the sensor is not blocked, so as to ensure that the light intensity detection result is accurate. Therefore, in this embodiment, most of the operation modes, such as setting the preset condition and detecting the distance, are similar to those of the previous embodiment, and reference is made to the description of the previous embodiment, which is not repeated in this embodiment.

Unlike the previous embodiment, the electronic device in this embodiment is not equipped with the optical signal detection module described above. The embodiment is assembled by the following steps: an optical fingerprint module and a distance detection module. The optical fingerprint module comprises a light sensing unit, a signal processing unit and a first control unit which are sequentially connected in series; the distance detection module comprises a distance sensor, a distance signal processing circuit and a second control unit which are sequentially connected in series. In order to ensure that the distance sensor can accurately judge whether the optical fingerprint module is shielded, the distance detection module is assembled in a preset distance of the optical fingerprint module.

In this embodiment, the optical fingerprint module refers to a module having both light intensity detection and fingerprint recognition, and is typically assembled into a touch display module of an electronic device to form a fingerprint recognition area in the touch display module, and at this time, the distance detection module may be assembled near the fingerprint recognition area.

It should be understood that the light sensing unit and the signal processing unit in the optical fingerprint module may have different structures.

In one case, the light sensing unit may include: the fingerprint sensor and the light intensity sensor, the signal processing unit may include: fingerprint signal processing circuit and light intensity signal processing circuit. The fingerprint sensor, the fingerprint signal processing circuit and the first control unit are sequentially connected in series; the light intensity sensor, the light intensity signal processing circuit and the first control unit are sequentially connected in series.

In another case, the light sensing unit includes only: a fingerprint sensor; while the signal processing unit still comprises: fingerprint signal processing circuit and light intensity signal processing circuit. In this case, a circuit gating switch is further included, wherein the fingerprint sensor is connected to one end of the fingerprint signal processing circuit or the light intensity signal processing circuit through the circuit gating switch. And the other ends of the fingerprint signal processing circuit and the light intensity signal processing circuit are connected to the first control unit. In this case, the multiplexing of the fingerprint sensor into the light intensity sensor is equivalent, the number of sensors to be arranged is reduced, and the hardware cost is reduced.

In still another case, the light sensing unit includes: a fingerprint sensor and a light intensity sensor; and the signal processing unit includes only: fingerprint signal processing circuit. In this case, a sensor gating switch is further included, wherein one end of the fingerprint signal processing circuit is connected to the first control unit, and the other end is connected to the fingerprint sensor or the light intensity sensor through the sensor gating switch. In this case, the fingerprint sensor and the light intensity sensor share the signal processing circuit, which reduces the number of signal processing circuits to be arranged and reduces the cost.

According to the technical scheme, the electronic equipment in the embodiment is provided with the optical fingerprint module and the distance detection module. The distance detection module is arranged in the preset distance of the optical fingerprint module, so that whether the light intensity sensor is shielded or not can be judged through the distance sensor, light intensity detection is further avoided under the condition that the light ray sensing unit in the optical fingerprint module is shielded, and the accuracy of the light intensity detection is improved.

Fig. 9A is a block diagram of a light intensity detection device according to an exemplary embodiment of the present disclosure. Referring to fig. 9A, the apparatus includes a first generating unit 901A, a second generating unit 902A, and a detecting unit 903A.

The first generating unit 901A is configured to collect, by using a distance sensor in the optical signal detecting module, a light signal for distance detection; inputting the light ray signals acquired by the distance sensor into a distance signal processing circuit in the optical signal detection module to generate distance information according to the distance signals output by the distance signal processing circuit;

The second generating unit 902A is configured to collect, by using a light intensity sensor in the optical signal detecting module, a light ray signal for light intensity detection when the distance information meets a preset condition; inputting the light ray signals into a light intensity signal processing circuit in the optical signal detection module to generate environmental light ray intensity information according to the light intensity signals output by the light intensity signal processing circuit;

the detection unit 903A is configured to use the ambient light intensity information as a light intensity detection result of the electronic device in the current environment.

As shown in fig. 10, fig. 10 is a block diagram of another light intensity detection device according to an exemplary embodiment of the present disclosure, which further includes, on the basis of the embodiment shown in fig. 9A, the following steps: a judgment unit 904A, and a determination unit 905A.

The judging unit 904A is configured to judge whether a distance corresponding to the distance information is greater than a distance threshold;

the preset conditions include: and is satisfied if the distance information is greater than a distance threshold.

Optionally, the optical signal detection module includes a plurality of distance sensors, and the device further includes:

A determining unit 905A configured to determine whether the distances corresponding to the plurality of distance information are greater than a distance threshold, and determine the number of distance information whose distance is greater than the distance threshold, respectively;

the preset conditions include: the number of distance information with a distance greater than the distance threshold is satisfied when the number is greater than a preset number.

Optionally, the optical signal detection module comprises a plurality of distance sensors,

The determining unit 905A is further configured to determine whether the distances corresponding to the plurality of distance information are greater than a distance threshold, and determine a distance sensor position corresponding to the distance information having the distance greater than the distance threshold, respectively;

determining the area covered by the distance sensor in the touch display module based on the determined position of the distance sensor;

the preset conditions include: the area is satisfied when the area is greater than an area threshold.

Note that, the judging unit 904A and the determining unit 905A in the device embodiment shown in fig. 10 may be included in the device embodiment shown in fig. 9A, which is not limited to this disclosure.

Fig. 9B is a block diagram of another light intensity detection device according to an exemplary embodiment of the present disclosure. Referring to fig. 9B, the apparatus includes a first generating unit 901B, a second generating unit 902B, and a detecting unit 903B. Wherein,

The first generating unit 901B is configured to collect, by using a distance sensor in the distance detecting module, a light signal for distance detection; inputting the light ray signals acquired by the distance sensor into a distance signal processing circuit in the light intensity detection module to generate distance information according to the distance signals output by the distance signal processing circuit;

The second generating unit 902B is configured to collect, by using a light sensing unit in the optical fingerprint module, a light signal for light intensity detection when the distance information meets a preset condition; inputting the light signal for light intensity detection into a signal processing unit in the optical fingerprint module to generate environmental light intensity information according to the light intensity signal output by the signal processing unit;

the detection unit 903B is configured to use the ambient light intensity information as a light intensity detection result of the electronic device in the current environment.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

For the device embodiments, reference is made to the description of the method embodiments for the relevant points, since they essentially correspond to the method embodiments. The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the objectives of the disclosed solution. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

Correspondingly, the disclosure also provides a signal processing device, which comprises: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to implement the light intensity detection method as described in the above embodiments, for example the method may comprise: collecting light ray signals for distance detection through a distance sensor in the optical signal detection module; inputting the light ray signals acquired by the distance sensor into a distance signal processing circuit in the optical signal detection module to generate distance information according to the distance signals output by the distance signal processing circuit; under the condition that the distance information meets the preset condition, acquiring a light signal for light intensity detection by a light intensity sensor in the optical signal detection module; inputting the light ray signals into a light intensity signal processing circuit in the optical fingerprint module to generate environmental light ray intensity information according to the light intensity signals output by the light intensity signal processing circuit; and taking the ambient light intensity information as a light intensity detection result of the electronic equipment in the current environment.

Accordingly, the present disclosure also provides an electronic device including a memory, and one or more programs, where the one or more programs are stored in the memory, and configured to be executed by the one or more processors, where the one or more programs include instructions for implementing the light intensity detection method according to the above embodiment, for example, the method may include: collecting light signals for distance detection through a distance sensor in the optical signal detection module; inputting the light ray signals acquired by the distance sensor into a distance signal processing circuit in the optical signal detection module to generate distance information according to the distance signals output by the distance signal processing circuit; under the condition that the distance information meets the preset condition, acquiring a light signal for light intensity detection by a light intensity sensor in the optical signal detection module; inputting the light ray signals into a light intensity signal processing circuit in the optical fingerprint module to generate environmental light ray intensity information according to the light intensity signals output by the light intensity signal processing circuit; and taking the ambient light intensity information as a light intensity detection result of the electronic equipment in the current environment.

Fig. 11 is a block diagram illustrating an apparatus 1100 for implementing a signal processing method according to an exemplary embodiment. For example, apparatus 1100 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.

Referring to fig. 11, apparatus 1100 may include one or more of the following components: a processing component 1102, a memory 1104, a power component 1106, a multimedia component 1108, an audio component 1110, an input/output (I/O) interface 1112, a sensor component 1114, and a communication component 1116.

The processing component 1102 generally controls overall operation of the apparatus 1100, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 1102 may include one or more processors 1120 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 1102 can include one or more modules that facilitate interactions between the processing component 1102 and other components. For example, the processing component 1102 may include a multimedia module to facilitate interaction between the multimedia component 1108 and the processing component 1102.

Memory 1104 is configured to store various types of data to support operations at apparatus 1100. Examples of such data include instructions for any application or method operating on the device 1100, contact data, phonebook data, messages, pictures, videos, and the like. The memory 1104 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power supply component 1106 provides power to the various components of the device 1100. The power supply component 1106 can include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 1100.

Multimedia component 1108 includes a screen between the device 1100 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, multimedia component 1108 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 1100 is in an operational mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 1110 is configured to output and/or input an audio signal. For example, the audio component 1110 includes a Microphone (MIC) configured to receive external audio signals when the device 1100 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 1104 or transmitted via the communication component 1116. In some embodiments, the audio component 1110 further comprises a speaker for outputting audio signals.

The I/O interface 1112 provides an interface between the processing component 1102 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 1114 includes one or more sensors for providing status assessment of various aspects of the apparatus 1100. For example, the sensor assembly 1114 may detect the on/off state of the device 1100, the relative positioning of the components, such as the display and keypad of the device 1100, the sensor assembly 1114 may also detect a change in position of the device 1100 or a component of the device 1100, the presence or absence of user contact with the device 1100, the orientation or acceleration/deceleration of the device 1100, and a change in temperature of the device 1100. The sensor assembly 1114 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 1114 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1114 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1116 is configured to facilitate communication between the apparatus 1100 and other devices in a wired or wireless manner. The device 1100 may access a wireless network based on a communication standard, such as WiFi,2G or 3G,4G LTE, 5G NR (New Radio), or a combination thereof. In one exemplary embodiment, the communication component 1116 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 1116 further includes a Near Field Communication (NFC) module to facilitate short range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 1100 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer-readable storage medium is also provided, such as a memory 1104 including instructions executable by the processor 1120 of the apparatus 1100 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present disclosure.

Claims

1. An optical signal detection module, characterized in that it is applied to electronic equipment, includes:

The distance sensors are used for collecting a plurality of light signals for distance detection;

the distance signal processing circuit is connected to the plurality of distance sensors and is used for processing the plurality of light ray signals acquired by the plurality of distance sensors to generate a plurality of distance signals;

The control unit is respectively connected to the light intensity signal processing circuit and the distance signal processing circuit and is used for generating environmental light intensity information according to the light intensity signals output by the light intensity signal processing circuit and generating a plurality of distance information for distance detection according to a plurality of distance signals output by the distance signal processing circuit; respectively determining whether the distances corresponding to the distance information are larger than a distance threshold value, determining the position of a distance sensor corresponding to the distance information with the distance larger than the distance threshold value, determining the covered area of the distance sensor in the touch display module based on the determined position of the distance sensor, and taking the environmental light intensity information as the light intensity detection result of the electronic equipment in the current environment under the condition that the distance information meets the preset condition; wherein, the preset conditions include: the area is satisfied when the area is greater than an area threshold.

2. The optical signal detection module of claim 1, further comprising:

The fingerprint sensor is used for collecting light signals for fingerprint identification;

The fingerprint signal processing circuit is connected with the fingerprint sensor at one end and connected with the control unit at the other end, and is used for processing the light ray signals acquired by the fingerprint sensor to generate fingerprint signals;

the control unit is also used for generating fingerprint information for fingerprint identification according to the fingerprint signals output by the fingerprint signal processing circuit.

3. The optical signal detection module of claim 1, further comprising:

The fingerprint signal processing circuit is used for processing the light ray signals acquired by the light intensity sensor to generate fingerprint signals;

The circuit gating switch is connected with the light intensity sensor at one end and connected with the light intensity signal processing circuit or the fingerprint signal processing circuit at the other end;

the light intensity sensor is also used for collecting light signals for fingerprint identification; and the control unit is also connected to the fingerprint signal processing circuit and is used for generating fingerprint information for fingerprint identification according to the fingerprint signal output by the fingerprint signal processing circuit.

4. The optical signal detection module of claim 1, further comprising:

One end of the sensor gating switch is connected to the light intensity signal processing circuit, and the other end of the sensor gating switch is connected with the light intensity sensor or the fingerprint sensor;

The light intensity signal processing circuit is also used for processing the light ray signals acquired by the fingerprint sensor to generate fingerprint signals; the control unit is also used for generating fingerprint information for fingerprint identification according to the fingerprint signals output by the light intensity signal processing circuit.

5. The optical signal detection module of claim 1, wherein the distance sensor is disposed within a preset distance of the light intensity sensor.

6. The optical signal detection module according to claim 1, wherein,

The light intensity signal processing circuit includes: the first amplifying circuit, the first filter circuit and the first analog-to-digital conversion circuit are sequentially connected in series;

the distance signal processing circuit includes: the second amplifying circuit, the second filtering circuit and the second analog-to-digital conversion circuit are sequentially connected in series.

7. A touch display module, comprising:

A glass cover sheet layer;

an optical signal detection module according to any one of claims 1-6, wherein the light-in side of the optical signal detection and distance detection layer faces the non-light-out side of the display layer.

8. An electronic device, comprising:

A touch display module and the optical signal detection module according to any one of claims 1 to 6, wherein the assembly position of the optical signal detection module corresponds to a fingerprint identification area formed on the touch display module; or alternatively

The touch display module of claim 7.

9. A light intensity detection method, characterized in that it is applied to an electronic device, where the electronic device includes the optical signal detection module set according to any one of claims 1 to 6, or the electronic device is according to claim 8; the method comprises the following steps:

Under the condition that the distance information meets the preset condition, acquiring a light signal for light intensity detection by a light intensity sensor in the optical signal detection module; inputting the light signal for light intensity detection into a light intensity signal processing circuit in the optical signal detection module to generate environmental light intensity information according to the light intensity signal output by the light intensity signal processing circuit;

10. The method as recited in claim 9, further comprising:

Judging whether the distance corresponding to the distance information is larger than a distance threshold value or not;

11. The method of claim 9, wherein the optical signal detection module includes a plurality of distance sensors, the method comprising:

respectively determining whether the distances corresponding to the plurality of distance information are larger than a distance threshold value or not, and determining the quantity of the distance information with the distance larger than the distance threshold value;

12. The light intensity detection method is characterized by being applied to electronic equipment, wherein the electronic equipment comprises an optical fingerprint module, and the optical fingerprint module comprises a light ray sensing unit, a signal processing unit and a first control unit which are sequentially connected in series; a distance detection module is arranged in a preset distance of the optical fingerprint module, and the distance detection module comprises a plurality of distance sensors, a distance signal processing circuit and a second control unit which are sequentially connected in series; the method comprises the following steps:

collecting a plurality of light signals for distance detection through a plurality of distance sensors in the distance detection module; inputting the light signals acquired by the distance sensors into a distance signal processing circuit in the distance detection module to generate distance information according to the distance signals output by the distance signal processing circuit;

Respectively determining whether the distances corresponding to the plurality of distance information are larger than a distance threshold value or not, and determining the position of a distance sensor corresponding to the distance information with the distance larger than the distance threshold value; determining the covered area of the distance sensor in the touch display module based on the determined position of the distance sensor; under the condition that the distance information meets the preset condition, acquiring a light signal for light intensity detection by a light sensing unit in the optical fingerprint module; inputting the light signal for light intensity detection into a signal processing unit in the optical fingerprint module to generate environmental light intensity information according to the light intensity signal output by the signal processing unit; wherein, the preset conditions include: the number of distance information with the distance larger than the distance threshold value is satisfied when the number is larger than a preset number;

13. A light intensity detection device, characterized in that it is applied to an electronic apparatus comprising the optical signal detection module according to any one of claims 1 to 6, or the electronic apparatus according to claim 8; the device comprises:

14. The light intensity detection device is characterized by being applied to electronic equipment, wherein the electronic equipment comprises an optical fingerprint module, and the optical fingerprint module comprises a light ray sensing unit, a signal processing unit and a first control unit which are sequentially connected in series; a distance detection module is arranged in the preset distance of the optical fingerprint module, and the light intensity detection module comprises a plurality of distance sensors, a distance signal processing circuit and a second control unit which are sequentially connected in series; the device comprises:

The first generation unit is used for collecting a plurality of light signals for distance detection through a plurality of distance sensors in the distance detection module; inputting the light signals acquired by the distance sensors into a distance signal processing circuit in the light intensity detection module to generate distance information according to the distance signals output by the distance signal processing circuit;

The second generation unit is used for respectively determining whether the distances corresponding to the plurality of distance information are larger than a distance threshold value or not and determining the position of a distance sensor corresponding to the distance information with the distance larger than the distance threshold value; determining the covered area of the distance sensor in the touch display module based on the determined position of the distance sensor; under the condition that the distance information meets the preset condition, acquiring a light signal for light intensity detection by a light sensing unit in the optical fingerprint module; inputting the light signal for light intensity detection into a signal processing unit in the optical fingerprint module to generate environmental light intensity information according to the light intensity signal output by the signal processing unit; wherein, the preset conditions include: the number of distance information with the distance larger than the distance threshold value is satisfied when the number is larger than a preset number;

15. An electronic device, comprising:

A processor;

a memory for storing processor-executable instructions;

Wherein the processor is configured to implement the method of any of claims 9-12 by executing the executable instructions.

16. A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method according to any of claims 9-12.