1. A display state control method is characterized by comprising the following steps:

detecting a peripheral area of the display screen;

judging whether a human body moving target exists in the peripheral region or not, and outputting a control signal according to a judgment result;

and controlling the display state of the display screen according to the control signal.

2. The method according to claim 1, wherein the step of determining whether the human body movement target exists in the peripheral region and outputting the control signal according to the determination result comprises:

and judging whether a human body moving target exists in the peripheral region, if so, outputting a first signal, and if not, outputting a second signal.

3. The method according to claim 2, wherein the first signal and the second signal are level signals.

4. The method according to claim 3, wherein the step of controlling the display state of the display screen according to the control signal is specifically:

if the control signal is a first signal, displaying a first state; and if the control signal is a second signal, displaying a second state.

5. The display state control method according to claim 4, wherein the first state is an operating state.

6. The display state control method according to claim 4, wherein the second state is a sleep state.

7. The display state control method according to any one of claims 1 to 6, wherein the peripheral area is located in front of the display screen.

8. The display state control method according to claim 7, wherein the peripheral area is located in a semicircular area with a radius of 4 m in front of the display screen.

9. A display state control apparatus for implementing the method of any one of claims 1 to 8, comprising:

the radar detection module is used for detecting the peripheral area of the display screen;

the analysis and judgment module is electrically connected with the radar detection module and used for judging whether a human body moving target exists in the peripheral region or not and outputting a control signal according to a judgment result; and

and the control module is electrically connected with the analysis and judgment module and the display screen and is used for controlling the display state of the display screen according to the control signal.

10. A display device comprising a display control module and a display screen, wherein the display control module is the display control module of claim 9.

Background

The display equipment in the commercial field and the security protection field normally works for 24 hours, the system is always in a normal working state and keeps signal output, and after the display screen receives signals, the display screen can always work normally for a long time no matter whether people use or nobody watches the display equipment. The display equipment enters a sleep mode only when no signal is input so as to achieve the purpose of energy conservation; but not automatically sleep or reduce the screen brightness when no one uses or watches the screen with the signal input. Taking a security display screen as an example: the display screen in the monitoring system is always in a working state no matter day, night, someone or nobody, which causes great resource waste and greatly shortens the service life of the display equipment.

Disclosure of Invention

Based on this, it is necessary to provide a display state control method for solving the problem that the conventional display screen cannot automatically enter the energy saving mode without being used or viewed by a person.

In addition, a display state control device and a display device are also provided.

A display state control method includes the following steps:

detecting a peripheral area of the display screen;

judging whether a human body moving target exists in the peripheral region or not, and outputting a control signal according to a judgment result;

and controlling the display state of the display screen according to the control signal.

In one embodiment, the step of determining whether a human body moving target exists in the peripheral region and outputting a control signal according to the determination result includes:

and judging whether a human body moving target exists in the peripheral region, if so, outputting a first signal, and if not, outputting a second signal.

In one embodiment, the first signal and the second signal are level signals.

In one embodiment, the step of controlling the display state of the display screen according to the control signal specifically includes:

if the control signal is a first signal, displaying a first state; and if the control signal is a second signal, displaying a second state.

In one embodiment, the first state is an operating state.

In one embodiment, the second state is a sleep state.

In one embodiment, the peripheral region is located in front of the display screen.

In one embodiment, the peripheral region is located in a semicircular region with a radius of 4 meters in front of the display screen.

In the display state control method, firstly, the area around the display screen is detected, secondly, whether the human body activity target exists in the area is judged, and finally, the display state of the display screen is controlled according to the judgment result. Therefore, when no human body moving target is detected in the peripheral region of the display screen, the display screen can automatically change the display state, so that the energy-saving target can be realized, and the service life of the display screen is prolonged.

A display state control apparatus for implementing any one of the above methods, comprising:

the radar detection module is used for detecting the peripheral area of the display screen;

the analysis and judgment module is electrically connected with the radar detection module and used for judging whether a human body moving target exists in the peripheral region or not and outputting a control signal according to a judgment result; and

and the control module is electrically connected with the analysis and judgment module and the display screen and is used for controlling the display state of the display screen according to the control signal.

The display state control device comprises a radar detection module, an analysis and judgment module and a control module, wherein the radar detection module is used for detecting the area around the display screen, the analysis and judgment module is used for judging whether a human body moving target exists in the area or not and outputting a control signal according to a judgment result, and the control module controls the display state of the display screen according to the control signal. Therefore, when the radar detection module detects that no human body moving target exists in the peripheral region, the display screen can be controlled to automatically change the display state, so that the energy-saving target can be realized, and the service life of the display device is prolonged.

A display device comprises a display module and a display state control device, wherein the display module comprises a display screen, and the display state control device is the display state control device.

The display device comprises a display control module and a display screen, wherein the display control module comprises a radar detection module, an analysis judgment module and a control module, the radar detection module is used for detecting the peripheral area of the display screen, the analysis judgment module is used for judging whether a human body moving target exists in the area or not and outputting a control signal according to a judgment result, and the control module controls the display state of the display screen according to the control signal. Therefore, when the radar detection module detects that no human body moving target exists in the peripheral region, the display screen can be controlled to automatically change the display state, so that the energy-saving target can be realized, and the service life of the display device is prolonged.

Drawings

FIG. 1 is a flow chart of a display state control method according to an embodiment;

FIG. 2 is a functional block diagram of a display state device according to one embodiment;

FIG. 3 is a functional block diagram of a display status device according to another embodiment;

FIG. 4 is a functional block diagram of a display status device according to another embodiment;

FIG. 5 is a schematic view of a display device according to an embodiment;

FIG. 6 is a schematic diagram of a detection region of a radar detection module according to an embodiment;

FIG. 7 is a functional block diagram of a display device according to an embodiment.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention can be embodied in many different forms than those herein described and many modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.

The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying 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" means that a particular feature, structure, or characteristic described in connection with the embodiment 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 can be combined with other embodiments.

It is to be understood that the specific embodiments described herein are merely illustrative of the relevant disclosure and are not limiting of the disclosure. It should be noted that, for the convenience of description, only the parts relevant to the related disclosure are shown in the drawings.

It should be noted that, in the present disclosure, the embodiments and features of the embodiments may be combined with each other without conflict.

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1, a display state control method according to an embodiment is implemented by a display state control apparatus 100, and includes the following steps:

s20, detecting the peripheral area of the display screen.

Specifically, this step is implemented by the radar detection module 110, referring to fig. 3, the radar detection module 110 further includes a transmitting module 111 and a receiving module 112, wherein the transmitting module 111 can transmit an electromagnetic wave to a predetermined area around the display screen 140, and the receiving module 112 is configured to receive a reflected wave of the electromagnetic wave, so as to detect the area around the display screen 140 by analyzing the reflected electromagnetic wave.

In this embodiment, the radar detection module 110 is an infrared detection module, the infrared detection module includes a transmitting module 111 and a receiving module 112, the transmitting module 111 is disposed at a middle position of a lower edge of the display screen 140, and the receiving module 112 is disposed at a position of the lower edge of the display screen 140 close to a right side. When the transmitting module 111 transmits infrared rays outwards, the infrared rays are reflected when encountering obstacles in the transmission process, and the receiving module 112 can receive the reflected infrared signals, convert the reflected infrared signals into electric signals and output the electric signals to the analyzing and judging module 120.

In another embodiment, the radar detection module 110 is a laser detection module, the laser detection module includes a transmitting module 111 and a receiving module 112, the transmitting module 111 is disposed at a middle position of a lower edge of the display screen 140, and the receiving module 112 is disposed at a position of the lower edge of the display screen 140 near to a right side. After the emitting module 111 emits laser outwards, the laser is reflected when encountering an obstacle in the propagation process, and the receiving module 112 can receive the reflected laser signal, convert the reflected laser signal into an electrical signal and output the electrical signal to the analyzing and determining module 120.

It should be understood that the locations of the transmitting module 111 and the receiving module 112 are optional, rather than fixed.

Further, referring to fig. 6, the detection area S of the radar detection module 110 is located in front of the display screen 140, and since only the front area of the display screen 140 is an effective observation area, only the effective observation area of the display screen 140 is detected, which is beneficial to saving energy.

Further, the detection area S of the radar detection module 110 is a semicircular area with a radius of 4 meters in front of the display screen 140. The area is an observation area commonly used by users, and the radius of the observation area is limited, so that the power of the radar detection module 110 is reduced, and the energy consumption is further reduced.

Still further, the detection area S of the radar detection module 110 is a sector area with a radius of 4 meters and an included angle of 120 degrees in front of the display screen 140, and the detection accuracy is improved by limiting the angle of the area.

And S40, judging whether a human body moving target exists in the peripheral region, and outputting a control signal according to a judgment result.

Referring to fig. 2, the analysis and determination module 120 is electrically connected to the radar detection module 110, and is configured to determine whether a human body moving target exists in the peripheral region, and output a control signal according to a determination result.

Specifically, the analysis and judgment module 120 is electrically connected to the radar detection module 110, and after the analysis and judgment module 120 receives the electrical signal output by the radar detection module 110, the distance and the direction between the obstacle and the display screen 140 can be calculated by analyzing the transmission time and the reception of the electromagnetic wave and the propagation speed of the electromagnetic wave in the air, and the obstacle is judged to determine whether the obstacle has human body movement characteristics, and a corresponding control signal is output according to the judgment result.

Further, if the analysis and determination module 120 determines that the obstacle has the human body movement characteristics, it is determined that the obstacle is a human body movement target, and a first signal is output; if the analysis and determination module 120 determines that the obstacle does not have the human activity feature, it determines that the obstacle is a non-human activity target, and outputs a second signal.

Optionally, the human activity features include, but are not limited to: infrared features, contour features, and motion features.

Optionally, the first signal and the second signal are both level signals, and the level parameters of the first signal and the second signal are different in size.

In the present embodiment, the level parameter of the first signal is 3V, and the level parameter of the second signal is 0V.

And S60, controlling the display state of the display screen according to the control signal.

Referring to fig. 4, the control module 130 is electrically connected to the analysis and determination module 120 and the display screen 140, and is configured to control a display state of the display screen 140 according to the control signal.

Specifically, the control module 130 is electrically connected to the analysis and judgment module 120 and the display screen 140, wherein the control module 130 includes a driving board 131, and the driving board 131 receives the control signal output by the analysis and judgment module 120 and controls the display state of the display screen 140 according to the control signal. The display state at least comprises a first state and a second state.

When the driving board 131 receives the first signal output by the analyzing and determining module 120, a first state control condition is triggered, so that the display screen 140 displays a first state by controlling the backlight current and voltage of the display screen 140. When the driving board 131 receives the second signal output by the analyzing and determining module 120, a second state control condition is triggered, so that the display screen 140 displays a second state by controlling the backlight current and voltage of the display screen 140.

In this embodiment, the first state is an active state, the display screen 140 displays a normal screen, and the second state is a sleep state, and the display screen 140 is in a black screen state.

In the above display state control method, firstly, the area around the display screen 140 is detected, secondly, whether the human body activity target exists in the area is judged, and finally, the display state of the display screen 140 is controlled according to the judgment result. Therefore, when no human body moving object is detected in the peripheral region of the display screen 140, the display screen 140 can automatically change the display state, so that the energy-saving object can be realized, and the service life of the display screen 140 can be prolonged.

Referring to fig. 2, a display state control apparatus 100 according to an embodiment is used for implementing the display state control method, and includes: a radar detection module 110, an analysis and judgment module 120, and a control module 130.

And the radar detection module 110 is used for detecting the peripheral area of the display screen 140.

Specifically, referring to fig. 3, the radar detection module 110 further includes a transmitting module 111 and a receiving module 112, wherein the transmitting module 111 can transmit an electromagnetic wave to a predetermined area around the display screen 140, and the receiving module 112 is configured to receive a reflected wave of the electromagnetic wave, so as to detect the area around the display screen 140 by reflecting the electromagnetic wave.

In this embodiment, the radar detection module 110 is an infrared detection module, the infrared detection module includes a transmitting module 111 and a receiving module 112, the transmitting module 111 is disposed at a middle position of a lower edge of the display screen 140, and the receiving module 112 is disposed at a position of the lower edge of the display screen 140 close to a right side. When the transmitting module 111 transmits infrared rays outwards, the infrared rays are reflected when encountering obstacles in the transmission process, and the receiving module 112 can receive the reflected infrared signals, convert the reflected infrared signals into electric signals and output the electric signals to the analyzing and judging module 120.

In another embodiment, the radar detection module 110 is a laser detection module, the laser detection module includes a transmitting module 111 and a receiving module 112, the transmitting module 111 is disposed at a middle position of a lower edge of the display screen 140, and the receiving module 112 is disposed at a position of the lower edge of the display screen 140 near to a right side. After the emitting module 111 emits laser outwards, the laser is reflected when encountering an obstacle in the propagation process, and the receiving module 112 can receive the reflected laser signal, convert the reflected laser signal into an electrical signal and output the electrical signal to the analyzing and determining module 120. It should be understood that the locations of the transmitting module 111 and the receiving module 112 are optional, rather than fixed.

Further, referring to fig. 6, the detection area S of the radar detection module 110 is located in front of the display screen 140, and since only the front area of the display screen 140 is an effective observation area, only the effective observation area of the display screen 140 is detected, which is beneficial to saving energy.

Further, the detection area S of the radar detection module 110 is a semicircular area with a radius of 4 meters in front of the display screen 140. The area is an observation area commonly used by users, and the radius of the observation area is limited, so that the power of the radar detection module 110 is reduced, and the energy consumption is further reduced.

Still further, the detection area S of the radar detection module 110 is a sector area with a radius of 4 meters and an included angle of 120 degrees in front of the display screen 140, and the detection accuracy is improved by limiting the angle of the area.

The analysis and determination module 120 is electrically connected to the radar detection module 110, and is configured to determine whether a human body moving target exists in the peripheral region, and output a control signal according to a determination result.

Specifically, the analysis and judgment module 120 is electrically connected to the radar detection module 110, and after the analysis and judgment module 120 receives the electrical signal output by the radar detection module 110, the distance and the direction between the obstacle and the display screen 140 can be calculated by analyzing the transmission time and the reception of the electromagnetic wave and the propagation speed of the electromagnetic wave in the air, and the obstacle is judged to determine whether the obstacle has human body movement characteristics, and a corresponding control signal is output according to the judgment result.

Further, if the analysis and determination module 120 determines that the obstacle has the human body movement characteristics, it is determined that the obstacle is a human body movement target, and a first signal is output; if the analysis and determination module 120 determines that the obstacle does not have the human activity feature, it determines that the obstacle is a non-human activity target, and outputs a second signal.

Optionally, the human activity features include, but are not limited to: infrared features, contour features, and motion features.

Optionally, the first signal and the second signal are both level signals, and the level parameters of the first signal and the second signal are different in size.

In the present embodiment, the level parameter of the first signal is 3V, and the level parameter of the second signal is 0V.

The control module 130 is electrically connected to the analysis and determination module 120 and the display screen 140, and is configured to control a display state of the display screen 140 according to the control signal.

Specifically, referring to fig. 4, the control module 130 is electrically connected to the analysis and judgment module 120 and the display screen 140, wherein the control module 130 includes a driving board 131, and the driving board 131 receives the control signal output by the analysis and judgment module 120 and controls the display state of the display screen 140 according to the control signal. The display state at least comprises a first state and a second state.

When the driving board 131 receives the first signal output by the analyzing and determining module 120, a first state control condition is triggered, so that the display screen 140 displays a first state by controlling the backlight current and voltage of the display screen 140. When the driving board 131 receives the second signal output by the analyzing and determining module 120, a second state control condition is triggered, so that the display screen 140 displays a second state by controlling the backlight current and voltage of the display screen 140.

In this embodiment, the first state is an active state, the display screen 140 displays a normal screen, and the second state is a sleep state, and the display screen 140 is in a black screen state.

The display state control device 100 includes a radar detection module 110, an analysis and judgment module 120, and a control module 130, wherein the radar detection module 110 is configured to detect a region around the display screen 140, the analysis and judgment module 120 is configured to judge whether a human body moving target exists in the region, and output a control signal according to a judgment result, and the control module 130 controls a display state of the display screen 140 according to the control signal. Therefore, when the radar detection module 110 detects that there is no human body moving object in the peripheral region, the display screen 140 can be controlled to automatically change the display state, so that an energy-saving object can be realized, and the service life of the display screen 140 can be prolonged.

Referring to fig. 5 to fig. 7, a display device 200 according to an embodiment includes a display state control device 100 and a display screen 140, where the display state control device 100 is any one of the display state control devices 100.

The display device 200 includes a display state control device 100 and a display screen 140, wherein the display state control device 100 includes a radar detection module 110, an analysis and judgment module 120 and a control module 130, the radar detection module 110 is configured to detect a region around the display screen 140, the analysis and judgment module 120 is configured to judge whether a human body moving target exists in the region, and output a control signal according to a judgment result, and the control module 130 controls a display state of the display screen 140 according to the control signal. Therefore, when the radar detection module 110 detects that there is no human body moving object in the peripheral region, the display screen 140 can be controlled to automatically change the display state, so that an energy-saving object can be realized, and the service life of the display screen 140 can be prolonged.

Specific examples are as follows.

Example 1

Referring to fig. 1, the present embodiment provides a display state control method, including the following steps:

in a first step, the radar detection module 110 detects a region around the display screen 140.

Secondly, the analyzing and determining module 120 determines whether a human body moving target exists in the detection region S, and outputs a control signal according to the determination result.

Third, the control module 130 controls the display state of the display screen 140 according to the control signal.

In the above display state control method, when it is detected that there is no human body moving object in the peripheral region of the display screen 140, the display screen 140 can automatically change the display state, so that the energy-saving object can be realized, and the service life of the display screen 140 can be prolonged.

Referring to fig. 2 to 4, the present embodiment further provides a display state control apparatus 100 for implementing the display state control method, where the display state control apparatus 100 includes a radar detection module 110, an analysis determination module 120, and a control module 130.

The radar detection module 110 includes a transmitting module 111 and a receiving module 112, the transmitting module 111 is disposed at the middle position of the lower edge of the display screen 140, and the receiving module 112 is disposed at the right side of the lower edge of the display screen 140. In this embodiment, the radar detection module 110 is an infrared detection module, and after the transmitting module 111 transmits infrared rays outwards, the infrared rays encounter obstacles in the transmission process and are reflected, and the receiving module 112 can receive the reflected infrared signals, convert the received reflected infrared signals into electrical signals, and output the electrical signals to the analysis and determination module 120. In addition, the detection region S is a region in front of the display screen 140.

The analysis and determination module 120 is electrically connected to the radar detection module 110, and is configured to determine whether a human body moving target exists in the peripheral region, and output a control signal according to a determination result. The analysis and determination module 120 is electrically connected to the radar detection module 110, and after receiving the electrical signal output by the calculation module 1121, the analysis and determination module 120 can calculate the distance and the orientation between the obstacle and the display screen 140 according to the time difference between the emission time and the reception of the electromagnetic wave and the propagation speed of the electromagnetic wave in the air, determine whether the obstacle has human activity characteristics, and output a corresponding control signal according to the determination result. If the analysis and judgment module 120 judges that the obstacle has the human body activity characteristic, the obstacle is judged to be a human body activity target, and a first signal is output, and if the analysis and judgment module 120 judges that the obstacle does not have the human body activity characteristic, the obstacle is judged to be a non-human body activity target, and a second signal is output. In this embodiment, the first signal and the second signal are both level signals, and the level parameter of the first signal is 3V and the level parameter of the second signal is 0V.

The control module 130 is electrically connected to the analysis and determination module 120 and the display screen 140, and is configured to control a display state of the display screen 140 according to the control signal. The control module 130 includes a driving board 131, and when the driving board 131 receives the first signal output by the analyzing and determining module 120, the driving board 131 triggers a first state control condition, and controls the backlight current and the backlight voltage of the display screen 140 to enable the display screen 140 to display the first state. When the driving board 131 receives the second signal output by the analyzing and determining module 120, the second state control condition is triggered, and the display screen 140 displays the second state by controlling the backlight current and voltage of the display screen 140. In this embodiment, the first state is a working state, the display screen 140 displays a normal image, and the second state is a sleep state, and the display screen 140 is in a black screen state.

When the radar detection module 110 detects that there is no human body moving object in the peripheral region, the display state control device 100 may control the display screen 140 to automatically change the display state, so as to achieve the energy-saving object and prolong the service life of the display screen 140.

Referring to fig. 5-7, the present embodiment further provides a display device 200, which includes a display screen 140 and a display state control device 100. The display state control device 100 may be any one of the display state control devices 100.

According to the display device 200, when the radar detection module 110 detects that no human body moving target exists in the peripheral region, the display screen 140 can be controlled to automatically change the display state, so that an energy-saving target can be realized, and the service life of the display screen 140 can be prolonged.

Example 2

The display condition control method provided in this embodiment is the same as the display condition control method of embodiment 1.

The display state control apparatus 100 provided in this embodiment is similar to the display state control apparatus 100 provided in embodiment 12, except that the radar detection module 110 is a laser detection module.

The display device 200 provided in this embodiment is similar to the display 2 device 200 provided in embodiment 12, except that the radar detection module 110 is a laser detection module.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.