Method and apparatus for controlling display screen brightness

Abstract

The application provides a display screen brightness control method and device, the display screen brightness control method comprises the following steps: detecting whether a target human body exists on the display side of the display screen; if the target human body exists on the display side of the display screen, obtaining the human body projection point of the target human body on a preset horizontal plane, the left lower corner point and the right lower corner point of the display screen; determining a triangle based on the human body projection point, the left lower corner point and the right lower corner point; determining the angle of the first inclination angle of the inner angle of the triangle with the left lower corner point as the vertex, and determining the angle of the second inclination angle of the inner angle of the triangle with the right lower corner point as the vertex; if there is an angle greater than the preset light source irradiation angle in the first inclination angle and the second inclination angle, the display screen is turned off and kept in a standby state; if there is no angle greater than the preset light source irradiation angle in the first inclination angle and the second inclination angle, the display screen is turned on. The application can reduce the power consumption of the display screen and improve the service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display screen brightness control method and device. BACKGROUND

[0002] Outdoor LED display screens, especially small-size LED display screens used at the entrances of supermarkets and show windows, are usually used to display shopping information, discount information, advertisements, etc. These information are intended to passers-by to deliver information. However, when the time is late and the flow of people is sparse or non-existent, the LED display screen will always work normally to display the content, which will cause waste of electric energy. In order to avoid waste, the traditional processing method is to directly power off when the LED display screen is not used, and then power on when the flow of people becomes large. The loss generated during the process of turning on and off will be greater, and it will have a greater impact on the service life of the LED display screen.

[0003] In the prior art, the display screen has high power consumption and short service life. SUMMARY

[0004] The present application aims to provide a display screen brightness control method and device, and aims to solve the problem of high power consumption and short service life of the display screen in the prior art.

[0005] In one aspect, the present application provides a display screen brightness control method, which comprises:

[0006] detecting whether a target human body exists on the display side of the display screen;

[0007] if the target human body exists on the display side of the display screen, obtaining a human body projection point of the target human body on the preset horizontal plane, and a left lower corner point and a right lower corner point of the display screen, the left lower corner point and the right lower corner point are located on the preset horizontal plane;

[0008] determining a triangle based on the human body projection point, the left lower corner point and the right lower corner point;

[0009] determining a first inclination angle as the angle of the internal angle of the triangle with the left lower corner point as the vertex, and determining a second inclination angle as the angle of the internal angle of the triangle with the right lower corner point as the vertex;

[0010] if there is an angle greater than a preset light source irradiation angle in the first inclination angle and the second inclination angle, the display screen is turned off and kept in a standby state; if there is no angle greater than a preset light source irradiation angle in the first inclination angle and the second inclination angle, the display screen is turned on.

[0011] Optionally, if there is no angle greater than the preset light source irradiation angle in the first inclination angle and the second inclination angle, the display screen is lit, comprising:

[0012] If there is no angle greater than the preset display angle in the first inclination angle and the second inclination angle, it is determined whether there is an angle greater than the preset display angle in the first inclination angle and the second inclination angle.

[0013] If there is an angle greater than the preset display angle in the first inclination angle and the second inclination angle, the audio content is played and the brightness of the display screen is adjusted to the first preset brightness, wherein the first preset brightness is less than the normal brightness, and the preset display angle is less than the preset light source irradiation angle.

[0014] Optionally, the display screen brightness control method comprises:

[0015] If there is no angle greater than the preset display angle in the first inclination angle and the second inclination angle, the video content is played and the brightness of the display screen is increased to the second preset brightness.

[0016] Optionally, the display screen brightness control method comprises:

[0017] The duration that the brightness of the display screen is at the second preset brightness is calculated.

[0018] If the duration is greater than the preset time, the brightness of the display screen is adjusted to the normal brightness.

[0019] Optionally, the first preset brightness is 50% of the normal brightness, and the second preset brightness is 70% of the normal brightness.

[0020] Optionally, the preset light source irradiation angle is 130 to 160 degrees, and the preset time is 3s.

[0021] Optionally, an infrared sensing module is arranged on the display screen, and the detection of whether the target human body exists on the display side of the display screen comprises:

[0022] The infrared sensing module is used to detect the heat of the display side of the display screen to obtain the detected heat.

[0023] Based on the detected heat, it is determined whether the target human body exists on the display side of the display screen.

[0024] In one aspect, the present application provides a display screen brightness control device, which comprises:

[0025] A detection unit is configured to detect whether a target human body exists on the display side of the display screen.

[0026] The acquisition unit is configured to acquire a human body projection point of the target human body on the preset horizontal plane and left and right lower corner points of the display screen if the target human body exists on the display side of the display screen, and the left and right lower corner points are located on the preset horizontal plane.

[0027] The first determination unit is configured to determine a triangle based on the human body projection point, the left lower corner point, and the right lower corner point.

[0028] The second determination unit is configured to determine an angle of an internal angle of the triangle with the left lower corner point as a vertex as a first inclination angle and determine an angle of an internal angle of the triangle with the right lower corner point as a vertex as a second inclination angle.

[0029] The control unit is configured to turn off the display screen and keep the display screen in a standby state if there is an angle greater than a preset light source irradiation angle in the first inclination angle and the second inclination angle, and turn on the display screen if there is no angle greater than the preset light source irradiation angle in the first inclination angle and the second inclination angle.

[0030] Optionally, the turning on the display screen if there is no angle greater than the preset light source irradiation angle in the first inclination angle and the second inclination angle includes:

[0031] If there is no angle greater than the preset display angle in the first inclination angle and the second inclination angle, determining whether there is an angle greater than a preset display angle in the first inclination angle and the second inclination angle.

[0032] If there is an angle greater than the preset display angle in the first inclination angle and the second inclination angle, playing audio content and adjusting the brightness of the display screen to a first preset brightness, wherein the first preset brightness is less than a normal brightness, and the preset display angle is less than the preset light source irradiation angle.

[0033] Optionally, the control method of the brightness of the display screen includes:

[0034] If there is no angle greater than the preset display angle in the first inclination angle and the second inclination angle, playing video content and increasing the brightness of the display screen to a second preset brightness.

[0035] Optionally, the control method of the brightness of the display screen includes:

[0036] Calculating a duration in which the brightness of the display screen is at the second preset brightness.

[0037] If the duration is greater than a preset time, the brightness of the display screen is adjusted to the normal brightness.

[0038] Optionally, the first preset brightness is 50% of the normal brightness, and the second preset brightness is 70% of the normal brightness.

[0039] Optionally, the preset light source irradiation angle is 130 degrees to 160 degrees, and the preset time is 3s.

[0040] Optionally, the display screen is provided with an infrared sensing module, and the detection of whether the target human body exists on the display side of the display screen comprises:

[0041] The infrared sensing module is used to detect the heat of the display side of the display screen to obtain a detected heat;

[0042] Based on the detected heat, it is determined whether the target human body exists on the display side of the display screen.

[0043] In one aspect, the present application also provides a display screen, which comprises:

[0044] one or more processors;

[0045] a memory; and

[0046] one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the display screen brightness control method of any one of the first aspect.

[0047] In one aspect, the present application also provides a computer readable storage medium having a computer program stored thereon, wherein the computer program is loaded by a processor to execute the steps in the display screen brightness control method of any one of the first aspect.

[0048] The present application provides a display screen brightness control method, which comprises: detecting whether a target human body exists on the display side of a display screen; if the target human body exists on the display side of the display screen, obtaining a human body projection point of the target human body on a preset horizontal plane, a left lower corner point and a right lower corner point of the display screen, and the left lower corner point and the right lower corner point are both located on the preset horizontal plane; determining a triangle based on the human body projection point, the left lower corner point and the right lower corner point; determining a first inclination angle as the angle of the internal angle of the triangle with the left lower corner point as the vertex, and determining a second inclination angle as the angle of the internal angle of the triangle with the right lower corner point as the vertex; if there is an angle greater than a preset light source irradiation angle in the first inclination angle and the second inclination angle, the display screen is turned off and kept in a standby state; if there is no angle greater than the preset light source irradiation angle in the first inclination angle and the second inclination angle, the display screen is turned on. The present application can reduce the power consumption of the display screen and improve the service life. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of a scenario for the display screen brightness control system provided in an embodiment of this application;

[0051] Figure 2 This is a schematic flowchart of an embodiment of the display screen brightness control method provided in this application;

[0052] Figure 3 This is a schematic diagram of the top view of the display screen in one embodiment of the display screen brightness control method provided in this application.

[0053] Figure 4 This is a schematic diagram of an embodiment of the display screen brightness control device provided in this application.

[0054] Figure 5 This is a schematic diagram of an embodiment of the display screen provided in this application. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0056] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for description purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0057] In the present application, the word "exemplary" is used to mean "serving as an example, instance, or illustration." Any implementation described as "exemplary" in the present application is not necessarily to be construed as preferred or advantageous over other implementations. The following description is presented to enable any person skilled in the art to make and use the present application. In the following description, for the purposes of explanation, details are set forth in order to provide a thorough understanding of the present application. It is apparent to one skilled in the art that the present application can be practiced without using these specific details. In other instances, well known structures and processes are not elaborated in order not to obscure the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

[0058] It should be noted that the method of the present application is executed in the display screen, and the processing object of each display screen exists in the form of data or information, such as time, which is essentially time information. It can be understood that in subsequent embodiments, if the size, quantity, position, etc. are mentioned, they all exist in the corresponding data for the display screen to process, and specific details are not described here.

[0059] The present application provides a display screen brightness control method and device, which are described in detail below.

[0060] Please refer to Figure 1 , Figure 1 The present application provides a display screen brightness control system, which can include a display screen 10, and the display screen 10 is integrated with a display screen brightness control device, such as a display screen in Figure 1 .

[0061] In addition, the display screen brightness control system can further include a memory for storing data.

[0062] It should be noted that, Figure 1 The scene diagram of the display screen brightness control system shown is only an example, and the display screen brightness control system and the scene described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of the display screen brightness control system and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0063] First, the display screen brightness control method provided in the embodiments of the present application includes: detecting whether there is a target human body on the display side of the display screen; if there is a target human body on the display side of the display screen, obtaining a human body projection point of the target human body on a preset horizontal plane and a left lower corner point and a right lower corner point of the display screen, the left lower corner point and the right lower corner point being located on the preset horizontal plane; determining a triangle based on the human body projection point, the left lower corner point and the right lower corner point; determining a first inclination angle as an angle of an internal angle of the triangle with the left lower corner point as a vertex, and determining a second inclination angle as an angle of an internal angle of the triangle with the right lower corner point as a vertex; if there is an angle greater than a preset light source irradiation angle in the first inclination angle and the second inclination angle, extinguishing the display screen and keeping the display screen in a standby state; and if there is no angle greater than the preset light source irradiation angle in the first inclination angle and the second inclination angle, lighting up the display screen.

[0064] Referring to Figure 2 , Figure 2 is an embodiment flow diagram of the display screen brightness control method provided by the embodiments of the present application. The display screen brightness control method includes 201-212:

[0065] 201, detecting whether there is a target human body on the display side of the display screen.

[0066] Among them, the human body passing through the display side of the display screen can be multiple, and each human body is detected as a target human body. If it is detected that there is no target human body on the display side of the display screen, it indicates that there is no person on the display side of the display screen, at which time the display screen is extinguished and kept in a standby state.

[0067] In the embodiment of the present application, the infrared sensing module is arranged on the display screen to detect whether there is a target human body on the display side of the display screen, including: detecting the heat of the display side of the display screen by using the infrared sensing module to obtain the detected heat; and determining whether there is a target human body on the display side of the display screen based on the detected heat. The infrared sensing module is arranged in the display screen, which can identify heat and determine whether it is a human body according to the heat range, because the heat of pets is similar to that of human bodies, and it is necessary to eliminate pet species.

[0068] The display screen is an LED display screen.

[0069] 202. Obtain a human body projection point of the target human body on a preset horizontal plane, and a left lower corner point and a right lower corner point of the display screen.

[0070] The left lower corner point and the right lower corner point are both located on the preset horizontal plane. Specifically, the preset horizontal plane can be a horizontal ground. In the embodiment of the present application, if there is a target human body on the display side of the display screen, the human body projection point of the target human body on the preset horizontal plane and the left lower corner point and the right lower corner point of the display screen are obtained.

[0071] As shown in Figure 1 and Figure 3 , the human body projection point is R, the left lower corner point of the display screen is A, and the right lower corner point of the display screen is B.

[0072] 203. Determine a triangle based on the human body projection point, the left lower corner point and the right lower corner point.

[0073] As shown in Figure 3 , the triangle is ABR composed of the human body projection point R, the left lower corner point A and the right lower corner point B.

[0074] 204. Determine the first inclination angle as the angle of the internal angle of the triangle with the left lower corner point as the vertex, and determine the second inclination angle as the angle of the internal angle of the triangle with the right lower corner point as the vertex.

[0075] As shown in Figure 3 , the first inclination angle is C1, and the second inclination angle is C2.

[0076] 205. Determine whether there is an angle greater than a preset light source irradiation angle in the first inclination angle and the second inclination angle.

[0077] As shown in Figure 3As shown, in the embodiment of the present application, the display angle of the LED display screen is α, and the person displays normal video content within the display angle α. The preset light source irradiation angle of the LED display screen is β, and the preset light source irradiation angle β range is the maximum angle range that the display screen light source can irradiate. The preset light source irradiation angle is 130 degrees to 160 degrees, which is the range of light. The preset light source irradiation angle β is greater than the display angle α. The light emission angle of the light source of the LED display screen is θ, and the light emission angle θ range is the display screen content viewing area, but the light source can irradiate the area range.

[0078] In the embodiment of the present application, if there is an angle greater than the preset light source irradiation angle β in the first inclination angle C1 and the second inclination angle C2, it indicates that the person has not entered the light range at this time, and the display screen is turned off and kept in standby state, which can reduce the energy consumption of the display screen. If there is no angle greater than the preset light source irradiation angle β in the first inclination angle C1 and the second inclination angle C2, it indicates that the person enters the light range at this time, and the display screen is turned on.

[0079] 206, turn off the display screen and keep the display screen in standby state.

[0080] In the embodiment of the present application, if there is an angle greater than the preset light source irradiation angle β in the first inclination angle C1 and the second inclination angle C2, it indicates that the person has not entered the light range at this time, and the display screen is turned off and kept in standby state, which can reduce the energy consumption of the display screen.

[0081] 207, judge whether there is an angle greater than the preset display angle in the first inclination angle and the second inclination angle.

[0082] In the embodiment of the present application, if there is no angle greater than the preset light source irradiation angle β in the first inclination angle C1 and the second inclination angle C2, it indicates that the person enters the light range at this time, and the display screen is turned on.

[0083] Specifically, if there is no angle greater than the preset light source irradiation angle β in the first inclination angle C1 and the second inclination angle C2, it indicates that the person enters the light range at this time, and it is judged whether there is an angle greater than the preset display angle in the first inclination angle and the second inclination angle.

[0084] In the embodiment of the present application, if there is an angle greater than the preset display angle in the first inclination angle C1 and the second inclination angle C2, the human body projection point R is located in the light source light emitting angle θ range, audio content is played, and the brightness of the display screen is adjusted to the first preset brightness, wherein the first preset brightness is 50% of the normal brightness. The normal brightness can be a brightness with the best viewing experience adjusted manually in advance. The human body projection point R is located in the light source light emitting angle θ range, at this time, people standing in the light range can be attracted, but the content of the display screen in this range cannot be seen, and the sound is played to attract people in this range to continue to move to the front of the display screen.

[0085] If there is no angle greater than the preset display angle in the first inclination angle C1 and the second inclination angle C2, the human body projection point R is located in the display angle α range, video content is played, and the brightness of the display screen is increased to the second preset brightness, wherein the second preset brightness is 70% of the normal brightness. When a person walks into the display angle α range, the brightness of the LED display screen is adjusted to 70% of the normal state, at this time, normal video content is played to drive people passing by in front of the display screen to stop and browse.

[0086] 208, audio content is played, and the brightness of the display screen is adjusted to the first preset brightness.

[0087] In the embodiment of the present application, if there is an angle greater than the preset display angle in the first inclination angle C1 and the second inclination angle C2, the human body projection point R is located in the light source light emitting angle θ range, audio content is played, and the brightness of the display screen is adjusted to the first preset brightness, wherein the first preset brightness is 50% of the normal brightness. The human body projection point R is located in the light source light emitting angle θ range, at this time, people standing in the light range can be attracted, but the content of the display screen in this range cannot be seen, and the sound is played to attract people in this range to continue to move to the front of the display screen.

[0088] 209, video content is played, and the brightness of the display screen is increased to the second preset brightness.

[0089] In the embodiment of the present application, if there is no angle greater than the preset display angle in the first inclination angle C1 and the second inclination angle C2, the human body projection point R is located in the display angle α range, video content is played, and the brightness of the display screen is increased to the second preset brightness, wherein the second preset brightness is 70% of the normal brightness. When a person walks into the display angle α range, the brightness of the LED display screen is adjusted to 70% of the normal state, at this time, normal video content is played to drive people passing by in front of the display screen to stop and browse.

[0090] 210, the duration that the brightness of the display screen is at the second preset brightness is calculated.

[0091] In the embodiment of the present application, after the brightness of the display screen is increased to the second preset brightness, the duration that the brightness of the display screen is at the second preset brightness is calculated. When a person walks into the display angle α range, the brightness of the display screen is at the second preset brightness, and thus there is always a person watching and staying during the duration that the brightness of the display screen is at the second preset brightness.

[0092] 211. determining whether the duration is greater than a preset time.

[0093] 212. adjusting the brightness of the display screen to a normal brightness.

[0094] If the duration is greater than the preset time, the brightness of the display screen is adjusted to the normal brightness.

[0095] The preset time is 3 s, and of course can be set according to specific conditions, which is not limited in the present application. If the duration is greater than the preset time, it indicates that the staying time of the person is greater than 3 s, and thus the brightness of the display screen is adjusted to the normal brightness.

[0096] It should be noted that no matter how many people pass by, as long as there is one person watching and staying, the LED display screen is in a normal state of display, that is, the brightness of the display screen is kept at the normal brightness.

[0097] In order to better implement the display screen brightness control method in the embodiment of the present application, on the basis of the display screen brightness control method, the present application also provides a display screen brightness control device, as shown in Figure 5 Figure 5 is a structural schematic diagram of one embodiment of the display screen brightness control device provided in the present application, which comprises:

[0098] A detection unit 501 is configured to detect whether a target human body exists on the display side of the display screen.

[0099] An acquisition unit 502 is configured to acquire a human body projection point of the target human body on a preset horizontal plane and left and right lower corner points of the display screen if the target human body exists on the display side of the display screen, wherein the left and right lower corner points are located on the preset horizontal plane.

[0100] A first determination unit 503 is configured to determine a triangle based on the human body projection point, the left lower corner point and the right lower corner point.

[0101] A second determination unit 504 is configured to determine a first inclination angle as an angle of an internal angle of the triangle with the left lower corner point as a vertex and a second inclination angle as an angle of an internal angle of the triangle with the right lower corner point as a vertex.

[0102] ​The control unit 505 is configured to turn off the display screen and keep the display screen in a standby state if there is an angle greater than a preset light source irradiation angle in the first inclination angle and the second inclination angle; and turn on the display screen if there is no angle greater than the preset light source irradiation angle in the first inclination angle and the second inclination angle.

[0103] Optionally, the control method of the display screen brightness comprises:

[0104] If there is no angle greater than the preset display angle in the first inclination angle and the second inclination angle, it is determined whether there is an angle greater than a preset display angle in the first inclination angle and the second inclination angle.

[0105] If there is an angle greater than the preset display angle in the first inclination angle and the second inclination angle, audio content is played and the brightness of the display screen is adjusted to a first preset brightness, wherein the first preset brightness is less than a normal brightness, and the preset display angle is less than the preset light source irradiation angle.

[0106] Optionally, the control method of the display screen brightness comprises:

[0107] If there is no angle greater than the preset display angle in the first inclination angle and the second inclination angle, video content is played and the brightness of the display screen is increased to a second preset brightness.

[0108] Optionally, the control method of the display screen brightness comprises:

[0109] The duration that the brightness of the display screen is at the second preset brightness is calculated.

[0110] If the duration is greater than a preset time, the brightness of the display screen is adjusted to the normal brightness.

[0111] Optionally, the first preset brightness is 50% of the normal brightness, and the second preset brightness is 70% of the normal brightness.

[0112] Optionally, the preset light source irradiation angle is 130 degrees to 160 degrees, and the preset time is 3 seconds.

[0113] Optionally, the display screen is provided with an infrared sensing module, and the detection of whether there is a target human body on the display side of the display screen comprises:

[0114] The display side of the display screen is detected for heat by the infrared sensing module to obtain detected heat.

[0115] Judge whether the display side of the display screen exists a target human body based on the detected heat.

[0116] The display screen provided by the embodiment of the present application is integrated with any one of the display screen brightness control devices provided by the embodiment of the present application. As shown in the figure, a structure schematic diagram of the display screen related to the embodiment of the present application is shown, in particular: Figure 5

[0117] The display screen can include a processor 601 with one or more processing cores, a memory 602 with one or more computer readable storage media, a power supply 603, an input unit 604, and the like. Those skilled in the art can understand that the display screen structure shown in the figure does not constitute a limitation on the display screen, and can include more or fewer components than the figure, or combine certain components, or different component arrangements. Among them:

[0118] The processor 601 is the control center of the display screen, which connects various parts of the display screen through various interfaces and lines, executes the software programs and / or modules stored in the memory 602, and calls the data stored in the memory 602, to perform various functions and process data of the display screen, thereby overall monitoring the display screen. Optionally, the processor 601 can include one or more processing cores; preferably, the processor 601 can integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 601.

[0119] The memory 602 can be used to store software programs and modules, and the processor 601 executes various function applications and data processing by running the software programs and modules stored in the memory 602. The memory 602 can mainly include a program storage area and a data storage area, wherein the program storage area can store the operating system, at least one application program required by the function (such as sound playing function, image playing function, etc.), etc.; the data storage area can store the data created according to the use of the display screen, etc. In addition, the memory 602 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state memory device. Accordingly, the memory 602 can also include a memory controller to provide access for the processor 601 to the memory 602.

[0120] ​The display screen also includes a power supply 603 for powering the various components. Preferably, the power supply 603 is logically connected to the processor 601 through a power management system, so that the power management system can manage charging, discharging, power consumption management, and the like. The power supply 603 can also include one or more DC or AC power sources, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.

[0121] The display screen can also include an input unit 604 for receiving input digital or character information, and generating keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.

[0122] Although not shown, the display screen can also include a display unit and the like, which will not be described here. In the present embodiment, the processor 601 in the display screen loads one or more executable files corresponding to the processes of the application programs into the memory 602 according to the following instructions, and runs the application programs stored in the memory 602 by the processor 601, thereby implementing various functions, such as:

[0123] Detecting whether there is a target human body on the display side of the display screen; if there is a target human body on the display side of the display screen, obtaining a human body projection point of the target human body on a preset horizontal plane, and a left lower corner point and a right lower corner point of the display screen, both of which are located on the preset horizontal plane; determining a triangle based on the human body projection point, the left lower corner point, and the right lower corner point; determining a first inclination angle as an angle of an internal angle of the triangle with the left lower corner point as a vertex, and a second inclination angle as an angle of an internal angle of the triangle with the right lower corner point as a vertex; if there is an angle greater than a preset light source irradiation angle in the first inclination angle and the second inclination angle, extinguishing the display screen and keeping the display screen in a standby state; if there is no angle greater than the preset light source irradiation angle in the first inclination angle and the second inclination angle, lighting up the display screen.

[0124] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions, or by instructions controlling related hardware, which can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0125] To this end, the embodiment of the present application provides a computer readable storage medium, which can include a read only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. A computer program is stored on the storage medium, and the computer program is loaded by a processor to execute the steps in any of the display screen brightness control methods provided by the embodiment of the present application. For example, the computer program loaded by the processor can execute the following steps:

[0126] detecting whether a target human body exists on the display side of the display screen; if the target human body exists on the display side of the display screen, obtaining a human body projection point of the target human body on a preset horizontal plane, a left lower corner point and a right lower corner point of the display screen, the left lower corner point and the right lower corner point being located on the preset horizontal plane; determining a triangle based on the human body projection point, the left lower corner point and the right lower corner point; determining a first inclination angle as an angle of an internal angle of the triangle with the left lower corner point as a vertex, and determining a second inclination angle as an angle of an internal angle of the triangle with the right lower corner point as a vertex; if there is an angle greater than a preset light source irradiation angle in the first inclination angle and the second inclination angle, extinguishing the display screen and keeping the display screen in a standby state; if there is no angle greater than the preset light source irradiation angle in the first inclination angle and the second inclination angle, lighting the display screen.

[0127] In the above embodiments, the description of each embodiment focuses on different aspects, and the parts not described in detail in a certain embodiment can be referred to the detailed description of other embodiments above, which will not be repeated here.

[0128] In the implementation, each unit or structure above can be realized as an independent entity, or can be combined as the same or several entities, and the specific implementation of each unit or structure above can be referred to the method embodiments above, which will not be repeated here.

[0129] The specific implementation of each operation above can be referred to the embodiments above, which will not be repeated here.

[0130] The display screen brightness control method and device provided by the embodiment of the present application are described in detail above, and the principle and implementation mode of the present application are described by applying specific examples, and the above embodiment is only used to help understand the method and core idea of the present application; meanwhile, for those skilled in the art, the specific implementation mode and application range can be changed according to the idea of the present application, and the content of the specification should not be understood as the limitation of the present application.

Claims

1. A method of controlling the brightness of a display screen, characterized by, A display surface of the display screen is perpendicular to a preset horizontal plane, and the display screen brightness control method comprises the following steps: Detecting whether a target human body exists on a display side of the display screen; If the target human body exists on the display side of the display screen, obtaining a human body projection point of the target human body on the preset horizontal plane and left and right lower corner points of the display screen, wherein the left and right lower corner points are located on the preset horizontal plane; Determining a triangle based on the human body projection point, the left lower corner point and the right lower corner point; Determining a first inclination angle as an angle of an internal angle of the triangle with the left lower corner point as a vertex, and determining a second inclination angle as an angle of an internal angle of the triangle with the right lower corner point as a vertex; If an angle greater than a preset light source irradiation angle exists in the first inclination angle and the second inclination angle, turning off the display screen and keeping the display screen in a standby state; if an angle greater than a preset light source irradiation angle does not exist in the first inclination angle and the second inclination angle, turning on the display screen.

2. The method of claim 1, wherein, The step of turning on the display screen if an angle greater than a preset light source irradiation angle does not exist in the first inclination angle and the second inclination angle comprises the following steps: If an angle greater than a preset light source irradiation angle does not exist in the first inclination angle and the second inclination angle, determining whether an angle greater than a preset display angle exists in the first inclination angle and the second inclination angle; If an angle greater than a preset display angle exists in the first inclination angle and the second inclination angle, playing audio content and adjusting the brightness of the display screen to a first preset brightness, wherein the first preset brightness is less than a normal brightness, and the preset display angle is less than the preset light source irradiation angle.

3. The method of claim 2, wherein the display screen brightness is controlled by the following equation: ###0001### where I is the display screen brightness, I0 is the initial display screen brightness, and t is the elapsed time. The display screen brightness control method comprises the following steps: If an angle greater than a preset display angle does not exist in the first inclination angle and the second inclination angle, playing video content and increasing the brightness of the display screen to a second preset brightness.

4. The method of claim 3, wherein the display screen brightness is controlled by the display screen brightness control unit. The display screen brightness control method comprises the following steps: Calculating a duration that the brightness of the display screen is at the second preset brightness; If the duration is greater than a preset time, adjusting the brightness of the display screen to the normal brightness.

5. The method of claim 4, wherein the display screen brightness is controlled by the following equation: ###00001### where I is the display screen brightness, I0 is the initial display screen brightness, and t is the elapsed time. The first preset brightness is 50% of the normal brightness, and the second preset brightness is 70% of the normal brightness.

6. The method of claim 5, wherein the display screen brightness is controlled by the following equation: ###00001### where I is the display screen brightness, I0 is the initial display screen brightness, and t is the elapsed time. The preset light source irradiation angle is 130 degrees to 160 degrees, and the preset time is 3 seconds.

7. The method of claim 6, wherein the display screen brightness is controlled by the following equation: ###00001### where I is the display screen brightness, I0 is the initial display screen brightness, and t is the elapsed time. The display screen is provided with an infrared sensing module, and the step of detecting whether a target human body exists on a display side of the display screen comprises the following steps: Performing heat detection on the display side of the display screen by using the infrared sensing module to obtain detected heat; Based on the detected heat, determining whether a target human body exists on the display side of the display screen.

8. A display screen brightness control device, characterized by comprising: The display screen brightness control device comprises the following steps: A detection unit is configured to detect whether a target human body exists on a display side of the display screen; The acquisition unit is configured to acquire a human body projection point of the target human body on a preset horizontal plane and left and right lower corner points of the display screen if the target human body exists on a display side of the display screen, and the left and right lower corner points are located on the preset horizontal plane. The first determination unit is configured to determine a triangle based on the human body projection point, the left lower corner point, and the right lower corner point. The second determination unit is configured to determine a first inclination angle as an angle of an internal angle of the triangle with the left lower corner point as a vertex and determine a second inclination angle as an angle of an internal angle of the triangle with the right lower corner point as a vertex. The control unit is configured to turn off the display screen and keep the display screen in a standby state if there is an angle greater than a preset light source irradiation angle in the first inclination angle and the second inclination angle, and turn on the display screen if there is no angle greater than the preset light source irradiation angle in the first inclination angle and the second inclination angle.

9. A display screen, characterized by The display screen comprises: one or more processors; a memory; and one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the display screen brightness control method of any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in the display screen brightness control method of any one of claims 1 to 7.

Images