Infrared transmitter control method and device, electronic equipment and storage medium

Abstract

The invention relates to a control method and device of an infrared transmitter, electronic equipment and a storage medium. The electronic equipment comprises an equipment body; the display screen is arranged on the equipment body; the first infrared transmitter is arranged in the equipment body and is arranged below the display screen; the controller is arranged in the equipment body, and the controller is configured to control the first infrared emitter to emit infrared light according to a vertical synchronizing signal of the display screen and a first preset emission time delay; wherein the emission of the first infrared emitter is triggered by the falling edge of the vertical synchronizing signal of the display screen. According to the electronic equipment, light spots generated by infrared light emitted by the infrared emitter can be prevented from being perceived by a user, and the burn-in risk of the display screen is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of sensor technology, and in particular to a control method, device, electronic device and storage medium of an infrared transmitter. Background Art

[0002] With the development of sensor technology, sensors are widely used in electronic devices. Taking a mobile phone as an example, the sensor is set inside the device, located below the mobile phone display screen. The sensor may include an infrared transmitter and an infrared receiver. When the infrared light emitted by the infrared transmitter is reflected by an external object, the infrared receiver can receive the corresponding reflection signal. Based on the reflection signal, it can be determined whether an external object is approaching; and then the screen can be turned on or off according to the judgment result.

[0003] However, the infrared light emitted by the infrared transmitter may generate bright spots on the display screen, which may be noticed by the user or cause the display screen to be burned in. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present disclosure provides a control method, device, electronic device and storage medium of an infrared emitter, which can prevent the light spot generated by the infrared light emitted by the infrared emitter from being noticed by the user and reduce the risk of screen burn-in of the display.

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided an electronic device, comprising a device body; a display screen arranged on the device body; a first infrared emitter arranged in the device body and below the display screen; and a controller arranged in the device body, the controller being configured to: control the first infrared emitter to emit infrared light according to a vertical synchronization signal of the display screen and a first preset emission delay; wherein the emission of the first infrared emitter is triggered by a falling edge of the vertical synchronization signal of the display screen.

[0006] In an embodiment of the present disclosure, the electronic device also includes: a receiver corresponding to the first infrared transmitter, and the distance between the first infrared transmitter and the position of the first display screen is greater than the distance between the receiver corresponding to the first infrared transmitter and the position of the first display screen; the controller is also configured to: determine the position of the first display screen according to the screen refresh mode of the display screen.

[0007] In an embodiment of the present disclosure, the electronic device also includes a second infrared emitter, and the controller is further configured to: control the second infrared emitter to emit infrared light according to the vertical synchronization signal of the display screen and a second preset emission delay; wherein the emission of the second infrared emitter is triggered by the rising edge of the vertical synchronization signal of the display screen.

[0008] In the embodiment of the present disclosure, the controller is also configured to: determine a usage strategy of the under-screen infrared emitter according to a refresh mode of the display screen; the usage strategy is to use the first infrared emitter or to use the second infrared emitter; and control the under-screen infrared emitter to emit infrared light according to the usage strategy, the vertical synchronization signal and the preset emission delay.

[0009] In the embodiment of the present disclosure, the controller is further configured to: if the refresh mode of the display screen is a dynamic refresh mode, determine that the usage strategy of the under-screen infrared emitter is to use the first infrared emitter; the display screen refresh rate corresponding to the dynamic refresh mode changes dynamically; if the refresh mode of the display screen is a fixed refresh mode, determine that the usage strategy of the under-screen infrared emitter is to use the second infrared emitter; the display screen refresh rate corresponding to the fixed refresh mode remains unchanged.

[0010] In the embodiment of the present disclosure, the controller is further configured to: if the usage strategy is to use the first infrared emitter, control the first infrared emitter to emit infrared light according to the falling edge of the vertical synchronization signal and the first preset emission delay; and / or, if the usage strategy is to use the second infrared emitter, control the second infrared emitter to emit infrared light according to the rising edge of the vertical synchronization signal and the second preset emission delay.

[0011] In the embodiment of the present disclosure, the emission period of the first infrared emitter is greater than the emission period of the second infrared emitter.

[0012] In an embodiment of the present disclosure, the distance between the second infrared emitter and the second display screen is smaller than the distance between the first infrared emitter and the second display screen; the controller is further configured to determine the second display screen position according to a screen refresh mode of the display screen.

[0013] In an embodiment of the present disclosure, the electronic device further includes a receiver, and the receiver is arranged between the first infrared transmitter and the second infrared transmitter.

[0014] In an embodiment of the present disclosure, the distance between the receiver and the first infrared transmitter is equal to the distance between the receiver and the second infrared transmitter.

[0015] In the embodiment of the present disclosure, the number of the first infrared emitters is equal to the number of the second infrared emitters.

[0016] In an embodiment of the present disclosure, the electronic device further includes: a first receiver and a second receiver, and the first infrared transmitter is located between the first receiver and the second receiver.

[0017] In the embodiment of the present disclosure, the distance between the first infrared transmitter and the first receiver is equal to the distance between the first infrared transmitter and the second receiver.

[0018] In the embodiment of the present disclosure, the display screen includes at least two preset areas, and the first infrared transmitter and the receiver corresponding to the first infrared transmitter are respectively arranged below the at least two preset areas.

[0019] According to a second aspect of an embodiment of the present disclosure, a method for controlling an infrared emitter is provided, comprising: obtaining a vertical synchronization signal of a display screen; controlling an under-screen infrared emitter to emit infrared light according to the vertical synchronization signal and a preset emission delay; wherein the under-screen infrared emitter comprises a first infrared emitter, and the emission of the first infrared emitter is triggered by a falling edge of the vertical synchronization signal of the display screen.

[0020] According to a third aspect of an embodiment of the present disclosure, a control device for an infrared emitter is provided, comprising: an acquisition module configured to acquire a vertical synchronization signal of a display screen; a control module configured to control the emission of infrared light by an infrared emitter under the screen according to the vertical synchronization signal; wherein the infrared emitter under the screen comprises a first infrared emitter, and the emission of the first infrared emitter is triggered by a falling edge of the vertical synchronization signal of the display screen.

[0021] According to a fourth aspect of an embodiment of the present disclosure, a control device for an infrared emitter is provided, comprising: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to: execute the steps of the control method for the infrared emitter provided in the second aspect of the present disclosure.

[0022] According to a fifth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, on which computer program instructions are stored. When the program instructions are executed by a processor, the steps of the infrared transmitter control method provided in the second aspect of the present disclosure are implemented.

[0023] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: by using the falling edge of the vertical synchronization signal of the display screen as the emission trigger signal of the infrared transmitter, since the time difference from the falling edge of the vertical synchronization signal to the refresh point of the display screen under different refresh rates is relatively fixed, and there is a time delay in the emission of the infrared transmitter, when the falling edge of the vertical synchronization signal is used as the trigger signal of the infrared transmitter, the light spot generated by the infrared light sent by the infrared transmitter can be refreshed following the refresh of the screen, so that it is not noticed by the user; and the risk of screen burn-in of the display screen can also be avoided.

[0024] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0026] Figure 1 is a schematic diagram of a vertical synchronization signal in the prior art according to an exemplary embodiment.

[0027] Figure 2 The diagram is a structural diagram of an electronic device according to an exemplary embodiment.

[0028] Figure 3 is a schematic diagram of a vertical synchronization signal of the present disclosure according to an exemplary embodiment.

[0029] Figure 4 The figure is a schematic diagram showing the internal structure of a mobile phone according to an exemplary embodiment.

[0030] Figures 5A-5D The figure is a schematic diagram of a proximity sensor of a mobile phone according to an exemplary embodiment.

[0031] Figure 6 A structural diagram of yet another electronic device is shown according to an exemplary embodiment.

[0032] Figure 7A-7B is a schematic diagram of yet another proximity sensor of a mobile phone according to an exemplary embodiment.

[0033] Figure 8 The figure is a flow chart showing a control method of a controller according to an exemplary embodiment.

[0034] Fig. 9 is a structural diagram of yet another electronic device according to an exemplary embodiment.

[0035] Figures 10A-10B is a schematic diagram of yet another proximity sensor of a mobile phone according to an exemplary embodiment.

[0036] Fig.11 The figure is a flow chart of a method for controlling an infrared transmitter according to an exemplary embodiment.

[0037] Fig.12 The figure is a block diagram of a control device for an infrared transmitter according to an exemplary embodiment.

[0038] Fig.13is a block diagram of yet another device for controlling an infrared transmitter according to an exemplary embodiment (general structure of a mobile terminal). DETAILED DESCRIPTION

[0039] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0040] It should be noted that all actions of acquiring signals, information or data in the present disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the device is located and with the authorization given by the owner of the corresponding device.

[0041] The technical solution in the embodiments of the present disclosure can be applied to various scenarios in which an infrared transmitter is used to detect an external object approaching a display screen.

[0042] Taking mobile phones as an example, with the demand for mobile phones with high screen-to-body ratios, some mobile phone sensors that should have been directly exposed to the outside, such as ambient light sensors, color temperature sensors, and proximity sensors, have been moved to the bottom of the screen and set inside the phone. This setting method requires consideration of whether the functions of the sensors can be implemented normally and whether the screen can display normally. Among them, the under-screen proximity sensor of the OLED (Organic Electroluminescence Display) screen is one of the important research directions in this scenario. On the one hand, it is necessary to enable the mobile phone to turn off the screen normally in specific scenarios, such as when making a call, to prevent accidental touches; on the other hand, it is also necessary to avoid causing bright spots on the screen that can be perceived by the human eye. Both of these are closely related to a good user experience. Therefore, a technical solution that can take both aspects into account is particularly important.

[0043] In some application scenarios, the proximity sensor may include an infrared transmitter and an infrared receiver. The infrared transmitter is used to emit infrared light, and the infrared receiver is used to receive infrared light reflected by external objects. The received signal of the infrared receiver can be used to determine whether an external object is approaching the display screen, thereby controlling the display screen to turn on or off.

[0044] In the related technology, the vertical synchronization signal of the display screen is used as the emission trigger signal of the infrared transmitter under the screen. By setting a suitable emission delay, the infrared transmitter is emitted just before the display screen is refreshed to ensure that the bright spots generated by the display screen can be refreshed to avoid being noticed by the user.

[0045] For easier understanding, please refer to Figure 1 , is a schematic diagram of a vertical synchronization signal of a related art according to an exemplary embodiment. Figure 1 As shown in the figure, the vertical synchronization signal has a rising edge and a falling edge, and the rising edge and the falling edge are different at different screen refresh rates. Figure 1 The figure also shows the curves of screen brightness change and infrared emission energy change, where 60 Hz is the first screen refresh rate, 120 Hz is the second screen refresh rate, Tdelay60 Hz represents the emission delay at a screen refresh rate of 60 Hz, and Tdelay120 Hz represents the emission delay at a screen refresh rate of 120 Hz, which are different. The emission delay can be understood as the delay between the infrared emission time point and the rising edge of the vertical synchronization signal.

[0046] It can be understood that when this technical solution is applied to the scenario of refresh rate switching (smart refresh rate or dynamic refresh rate), since different refresh rates require different transmission delays, and the current under-screen proximity devices on the market cannot immediately know the switching of the screen refresh rate, the transmission may mistakenly use the delay of the previous refresh rate, causing flash points (bright spots or dark spots) on the screen, and even eventually causing screen burn-in, seriously affecting the user experience.

[0047] Based on this, the embodiment of the present disclosure provides a technical solution, in which the falling edge of the vertical synchronization signal of the display screen is used as the emission trigger signal of the infrared transmitter. Since the time difference from the falling edge of the vertical synchronization signal to the refresh point of the display screen under different refresh rates is relatively fixed, and there is a time delay in the emission of the infrared transmitter, when the falling edge of the vertical synchronization signal is used as the trigger signal of the infrared transmitter, the light spot generated by the infrared light sent by the infrared transmitter can be refreshed following the refresh of the screen, so that it is not noticed by the user; and the risk of screen burn-in of the display screen can also be avoided.

[0048] Figure 2 is a structural diagram of an electronic device according to an exemplary embodiment. Figure 2 As shown, the electronic device 200 includes:

[0049] Device body 201; display screen 202 disposed on device body 201; first infrared emitter 203 disposed in device body 201 and below display screen 202; controller 204 disposed in device body 201. Figure 2 In the embodiment, the first infrared emitter 203 and the controller 204 are located on the same plane as the display screen 202, but it should be understood that the first infrared emitter 203 and the controller 204 are both arranged inside the device body 201, and arranged below the display screen 202. In addition, the positional relationship of each component is not limited to Figure 2 Position relationship shown.

[0050] In the embodiment of the present disclosure, the controller 204 is configured to control the first infrared emitter 203 to emit infrared light according to the vertical synchronization signal of the display screen 202 and the preset emission delay. The emission of the first infrared emitter 203 is triggered by the falling edge of the vertical synchronization signal of the display screen 202.

[0051] It can be understood that if the current time is the falling edge of the vertical synchronization signal, the emission of the first infrared emitter 203 is triggered, and there is a time delay between the actual emission time and the current time, and the time delay is the first preset time delay.

[0052] In some embodiments, different screen refresh rates correspond to the same transmission delay. Therefore, when the screen refresh rate changes, the transmission delay remains unchanged.

[0053] Therefore, in the preset transmission delay, the transmission delay can be set to a fixed value, so that when the refresh rate changes, the fixed transmission delay is still used.

[0054] Figure 3 is an example diagram of a vertical synchronization signal according to an exemplary embodiment. Figure 3 As shown in the figure, the vertical synchronization signal has a rising edge and a falling edge, and the rising edge and the falling edge are different at different screen refresh rates. Figure 3 The curves of screen brightness and infrared emission energy are also shown, where 60Hz is the first screen refresh rate, 90Hz is the second screen refresh rate (the vertical synchronization signal of the 90Hz refresh rate is not shown in the figure), and 120Hz is the third screen refresh rate. Tdelay60Hz represents the emission delay at a screen refresh rate of 60Hz, Tdelay90Hz represents the emission delay at a screen refresh rate of 90Hz, and Tdelay120Hz represents the emission delay at a screen refresh rate of 120Hz, which are the same; the emission delay can be understood as the delay between the infrared emission time point and the falling edge of the vertical synchronization signal.

[0055] It can be understood that, because the time difference from the falling edge of the vertical synchronization signal to the screen refresh point is relatively fixed at different refresh rates, the falling edge of the vertical synchronization signal is used here as the emission trigger signal, and the delay at each refresh rate is unified, so that even if the device cannot immediately know the switch of the screen refresh rate, the light and dark spots of the OLED screen stimulated by the emitted infrared light can be refreshed through the emission delay, avoiding the risk of being noticed by the human eye or screen burn-in. That is, in this case, because the time difference from the falling edge to the screen refresh point is relatively fixed, the switch of the refresh rate will not affect the refresh of the light spot, so the user can avoid noticing the light spot.

[0056] In some embodiments, the electronic device further includes a receiver corresponding to the first infrared transmitter 203, and the distance between the first infrared transmitter 203 and the first display screen is greater than the distance between the receiver corresponding to the first infrared transmitter 203 and the first display screen.

[0057] In the embodiment of the present disclosure, the infrared transmitter may be an infrared emitting light source, such as an infrared emitting lamp; correspondingly, the infrared receiver may be a receiving device corresponding to the infrared emitting light source.

[0058] In the embodiment of the present disclosure, the position of the first display screen may be determined according to the screen refresh mode of the display screen 202 ; therefore, the controller 204 is further configured to: determine the position of the first display screen according to the screen refresh mode of the display screen 202 .

[0059] For example, if the refresh mode of the display screen 202 is line refresh, the first display screen position may be the upper edge or the lower edge of the display screen 202 , and the first infrared emitter 203 may be as far away from the upper edge or the lower edge of the display screen 202 as possible.

[0060] For example, if the refresh mode of the display screen 202 is column refresh, the first display screen position may be the center of the display screen 202 , and the first infrared emitter 203 may be as far away from the center of the display screen 202 as possible.

[0061] It can be understood that since the falling edge of the vertical synchronization signal is used as the emission trigger signal of the infrared emission lamp, the time difference between the emission time point and the screen refresh point will be sharply reduced compared to the method of using the rising edge trigger signal. Even if the emission delay is uniformly set to 0, dark spots may appear on the screen. In order to prevent the generation of dark spots, the time difference between the falling edge of the vertical synchronization signal and the screen refresh point is increased by increasing the distance from the infrared emission lamp to the top of the screen (when the line is refreshed), so that the time difference between the emission time point and the refresh point can be adjusted to a suitable time difference.

[0062] In the embodiment of the present disclosure, the distance between the first infrared emitter 203 and the first display screen is less than a preset distance.

[0063] In some embodiments, when the refresh mode of the display screen 202 is column refresh, the distance between the first infrared emitter 203 and the center of the display screen 202 is less than the preset distance. It can be understood that the distance is the distance in the same axis, such as the distance in the x-axis direction or the distance in the y-axis direction.

[0064] In some embodiments, when the refresh mode of the display screen 202 is line refresh, the distance between the first infrared emitter 203 and the upper edge of the display screen 202 is less than a preset distance. It can be understood that the distance is the distance in the same axis, such as the distance in the x-axis direction or the distance in the y-axis direction.

[0065] For example, for mobile phones, when the row is refreshed, in order to ensure that the automatic screen off function works properly when a person's face approaches during a call, the maximum distance between the infrared transmitter and the top of the screen is recommended to be no more than 15mm. Similarly, when the screen refresh mode is column refresh, the infrared transmitter should be as far away from the left side of the screen as possible. And to ensure that the automatic screen off function works properly, the maximum distance between the infrared transmitter and the center of the screen (in the short direction of the X axis) should not exceed 15mm.

[0066] In some embodiments, the first infrared transmitter 203 and the corresponding receiver can be placed together on a raised plate, and multiple first infrared transmitters 203 are placed in a row to the left or right of the receiver; or, multiple first infrared transmitters 203 are placed in a row below or above the receiver.

[0067] In some embodiments, the number of first infrared emitters 203 may be less than or equal to a preset number. For electronic devices with a smaller display screen 202 such as mobile phones, the preset number may be smaller, for example, 4; for electronic devices with a larger display screen 202 such as tablets, the preset number may be greater, for example, greater than 4.

[0068] In the related art, for electronic devices, only the accidental touch situation in one area is taken into consideration, so an infrared transmitter and a corresponding receiver are only configured for one area, which cannot cover more accidental touch situations, such as special scenarios. Therefore, automatic screen turning off cannot be achieved in special scenarios.

[0069] Based on this, in the embodiment of the present disclosure, the display screen 202 includes at least two preset areas, and the first infrared transmitter 203 and the receiver corresponding to the first infrared transmitter 203 are respectively arranged below the at least two preset areas.

[0070] In some embodiments, the preset area is an area where an accidental touch may occur. Taking a mobile phone as an example, the preset area may be the upper half of the mobile phone screen, where an accidental touch may occur when a person is answering a call. It may also be the lower half of the mobile phone screen, where an accidental touch may occur when the lower half of the mobile phone is placed in a pocket; or when a person touches the mobile phone with the palm of his hand.

[0071] For example, see Figure 4, is a diagram showing the internal structure of a mobile phone according to an exemplary embodiment, wherein the internal structure of the mobile phone includes a main board 401, a circuit board 402, a battery 403, and a small board 404, which can be regarded as a three-section structure of main board 401-circuit board 402 / battery 403-small board 404. Thus, a padding plate can be provided at the main board 401 to place an infrared transmitter and a corresponding receiver, and a padding plate can be provided at the small board 404 to place an infrared transmitter and a corresponding receiver. Among them, the circuit board 402 can be a flexible circuit board.

[0072] For example, see Figure 5A and Figure 5B , is a schematic diagram of an infrared emitting lamp and a receiver according to an exemplary embodiment. Figure 5A As shown, the infrared emitting lamp and the corresponding receiver are placed on the elevated board together, and multiple infrared emitting lamps are placed in a row below the receiver, with a distance from the top of the screen less than or equal to 15 mm. Figure 5B As shown, the infrared transmitting lamp and the corresponding receiver are placed on the elevated board together, and multiple infrared transmitting lamps are placed in a row on the right side of the receiver, with a distance from the center of the screen less than or equal to 15 mm.

[0073] For further information, please refer to Figure 5C and Figure 5D , is a schematic diagram showing the position of an infrared emitting lamp relative to a screen according to an exemplary embodiment. Figure 5C As shown, for a line refresh screen, four infrared emitting lamps under the screen are arranged in a row in area A, and the distance between the four infrared emitting lamps under the screen and the top of the screen is less than or equal to 15 mm; and four infrared emitting lamps under the screen are arranged in a row in area B, and the distance between the four infrared emitting lamps under the screen and the bottom of the screen is less than or equal to 15 mm. Figure 5D As shown, for the column refresh screen, four under-screen infrared emitting lamps are arranged in a row in area C, and the distance between the four under-screen infrared emitting lamps and the center of the screen is less than or equal to 15 mm; and four under-screen infrared emitting lamps are arranged in a row in area D, and the distance between the four under-screen infrared emitting lamps and the center of the screen is less than or equal to 15 mm.

[0074] It can be understood that for the row refresh screen, the infrared emitting lamps placed on the small board should also be placed in rows, but there is no requirement for their relative position with the receiving device, and to ensure the normal function of the automatic screen off function, the infrared emitting lamps in rows should also be no more than 15mm away from the bottom of the screen; similarly, for the column refresh screen, the infrared emitting lamps placed on the small board should also be placed in columns, and should also be placed on the right side of the receiving device, and the emitting lamps in columns should also be no more than 15mm away from the center of the screen. The infrared emitting lamps of the small board and the main board are also triggered by the falling edge of the vertical synchronization signal, but the emission delay should be set separately to ensure that no flash points appear. In addition, the number of infrared emitting lamps on the small board also includes but is not limited to less than 4 or more than 4.

[0075] Please refer to Figure 6 , is a schematic diagram of an electronic device according to an exemplary embodiment. Figure 6 As shown, the electronic device includes not only the first infrared emitter 203 but also the second infrared emitter 205; the controller is further configured to: control the second infrared emitter 205 to emit infrared light according to the vertical synchronization signal of the display screen 202 and the second preset emission delay; wherein the emission of the second infrared emitter 205 is triggered by the rising edge of the vertical synchronization signal of the display screen 202.

[0076] It can be understood that the second preset transmission delay is different from the first preset transmission delay, that is, the first infrared transmitter 203 and the second infrared transmitter 205 use different transmission delays respectively.

[0077] In this implementation, since two infrared emitters are provided, the control of the two infrared emitters can be implemented in combination with the screen refresh mode.

[0078] Therefore, as an optional implementation, the controller 204 is further configured to: determine the use strategy of the infrared emitter under the screen according to the refresh mode of the display screen 202; the use strategy is to use the first infrared emitter 203 or the second infrared emitter 205; and control the infrared emitter under the screen to emit infrared light according to the use strategy, the vertical synchronization signal and the preset emission delay. It can be understood that the infrared emitter under the screen here includes the first infrared emitter 203 and the second infrared emitter 205.

[0079] In some embodiments, the controller 204 is further configured as follows: if the refresh mode of the display screen 202 is a dynamic refresh mode, the usage strategy of the under-screen infrared transmitter is determined to be to use the first infrared transmitter 203; the display screen refresh rate corresponding to the dynamic refresh mode changes dynamically; if the refresh mode of the display screen 202 is a fixed refresh mode, the usage strategy of the under-screen infrared transmitter is determined to be to use the second infrared transmitter 205; the display screen refresh rate corresponding to the fixed refresh mode remains unchanged.

[0080] In some embodiments, the controller 204 is further configured to: if the usage strategy is to use the first infrared emitter 203, control the first infrared emitter 203 to emit infrared light according to the falling edge of the vertical synchronization signal and the first preset emission delay; and / or, if the usage strategy is to use the second infrared emitter 205, control the second infrared emitter 205 to emit infrared light according to the rising edge of the vertical synchronization signal and the second preset emission delay.

[0081] In some embodiments, the emission period of the first infrared emitter 203 is greater than the emission period of the second infrared emitter 205 .

[0082] In some embodiments, the distance between the second infrared emitter 205 and the second display screen is smaller than the distance between the first infrared emitter 203 and the second display screen, that is, the second infrared emitter 205 is closer to the second display screen than the first infrared emitter 203 .

[0083] In the embodiment of the present disclosure, the position of the second display screen may be determined according to the screen refresh mode of the display screen 202 ; therefore, the controller is further configured to: determine the position of the second display screen according to the screen refresh mode of the display screen 202 .

[0084] In some embodiments, the second display screen position is the same position as the first display screen position.

[0085] For example, if the refresh mode of the display screen 202 is row refresh, the second display screen position can be the upper or lower edge of the display screen 202. Then, the first infrared emitter 203 can be as far away from the upper or lower edge of the display screen 202 as possible, while the second infrared emitter 205 does not need to be far away from the upper or lower edge of the display screen 202.

[0086] For example, if the refresh mode of the display screen 202 is column refresh, the second display screen position may be the center of the display screen 202 , and the first infrared emitter 203 may be as far away from the center of the display screen 202 as possible, while the second infrared emitter 205 may not be far away from the center of the display screen 202 .

[0087] In this embodiment, the distance between the first infrared emitter 203 and the second display screen also needs to be less than the preset distance. For details, please refer to the above-mentioned embodiment, which will not be repeated here.

[0088] like Figure 6 As shown, the receiver 206 may be disposed between the first infrared transmitter 203 and the second infrared transmitter 205 .

[0089] In some embodiments, the first infrared transmitter 203, the receiver 206 and the second infrared transmitter 205 are disposed on a raised plate.

[0090] In some embodiments, the first infrared transmitter 203, the receiver 206 and the second infrared transmitter 205 are disposed below at least two display screen 202 areas (ie, the aforementioned preset areas).

[0091] In some embodiments, when two infrared emitters are used, the first infrared emitter 203 can emit infrared light based on the falling edge of the vertical synchronization signal and the corresponding emission delay in the case of a dynamic refresh rate; and the second infrared emitter 205 can emit infrared light based on the rising edge of the vertical synchronization signal and the corresponding emission delay in the case of a fixed refresh rate. Therefore, the technical solution can be applied to both fixed refresh rate scenes and dynamic refresh rate scenes, and no light spots are generated in both scenes.

[0092] In some embodiments, the distance between the receiver 206 and the first infrared transmitter 203 is equal to the distance between the receiver 206 and the second infrared transmitter 205 .

[0093] In some embodiments, the number of first infrared emitters 203 and the number of second infrared emitters 205 are equal.

[0094] Fig. 7A is a schematic diagram of a sensor layout according to an exemplary embodiment. Fig. 7A In the display screen, the screen refresh mode is line refresh mode, and the infrared emitting lamp under the screen is used as an infrared emitter, including two groups of infrared emitting lamps. The two groups of infrared emitting lamps are placed in a row, and the group of infrared emitting lamps at the bottom is as far away from the top of the display screen as possible, and the distance from the top of the display screen is no more than 15mm, so as to ensure that the automatic screen off function is normal in the call approaching scene.

[0095] Figure 7B is a schematic diagram of a sensor layout according to another exemplary embodiment. Figure 7B In the display, the screen refresh mode is column refresh mode, and the infrared emitting lamp under the screen is used as an infrared emitter, including two groups of infrared emitting lamps. The two groups of infrared emitting lamps are placed in columns, and the group of infrared emitting lamps on the right side is as far away from the left side of the display as possible, and at the same time, the distance from the center of the display screen is no more than 15mm, so as to ensure that the automatic screen off function is normal in the call approaching scene.

[0096] In addition, the number of infrared emitting lamps in each group may be less than 4 or greater than 4, provided that the number remains consistent.

[0097] and, in Fig. 7A and 7B In addition to setting the infrared emitting lamp and the receiving device in the illustrated area, the infrared emitting lamp and the receiving device may also be set in other areas for preventing accidental touches according to corresponding implementation methods.

[0098] It can be understood that the group of lights located above (row refresh) or on the left side (column refresh) of the receiver uses the rising edge of the vertical synchronization signal as the transmission trigger signal, and sets the optimal transmission delay (which can be obtained by measuring a large number of delays without flash points and taking the average value) according to the preset screen refresh rate (including but not limited to 30Hz, 60Hz, 90Hz, 120Hz, etc.). The group of lights located below (row refresh) or on the right side (column refresh) of the receiving device uses the falling edge of the vertical synchronization signal as the transmission trigger signal, and has a unified transmission delay.

[0099] Since the time difference from the falling edge of the vertical synchronization signal to the screen refresh point is relatively fixed at different refresh rates, the falling edge of the vertical synchronization signal is used as the infrared emission trigger signal, and the delay at each refresh rate is unified. In this way, even if the device cannot immediately know the switch of the screen refresh rate, the correct emission delay can be used to refresh the bright and dark spots of the OLED screen stimulated by infrared emission, avoiding the risk of being detected by the human eye or screen burn-in. The optimal emission delay can be obtained by measuring a large number of delays without flash points and taking the average value.

[0100] Due to layout limitations, the group of lights located at the bottom or right may not be placed at the extreme distance (15mm), which will make the time difference between the falling edge of the vertical synchronization signal and the screen refresh point too short, resulting in dark spots on the screen even if the unified emission delay is set to 0. Therefore, in this scenario, the emission light control method linked to the screen refresh rate mode can be set.

[0101] Please refer to Figure 8 , is a flow chart of a control method of a controller according to an exemplary embodiment. In this control method, after the proximity sensor (infrared transmitter and receiver) starts working, the controller first determines the mode that the screen will use, the fixed refresh rate mode (in this mode, the screen refresh rate is fixed) or the dynamic refresh rate mode (in this mode, the screen refresh rate changes dynamically).

[0102] If it is a fixed refresh rate mode, only the rising edge of the vertical synchronization signal (ie vsync) is used to trigger and control the upper or left emission light; the emission cycle is the default emission cycle (which can be understood as the preset emission cycle).

[0103] If the refresh rate is dynamic, only the falling edge of the vertical synchronization signal is used to trigger the emission light on the bottom or right. Moreover, based on the default emission cycle, the emission cycle is extended; that is, the emission cycle of this group of infrared emission lights is greater than the emission cycle of another group of infrared emission lights.

[0104] When the screen mode is switched again, you need to turn off all infrared emitters first and re-enable the corresponding control method.

[0105] It can be understood that when the controller determines that the screen is in fixed refresh rate mode, only the group of lights located above or to the right of the receiving device is used; when the controller determines that the screen is in dynamic refresh rate mode, only the group of lights located below or to the left of the receiving device is used, and the infrared emission cycle is extended within a reasonable range (provided by testing a large number of machines to verify that it does not affect the proximity function) to minimize the dark spots on the screen caused by using the falling edge trigger. In addition, when the screen refresh rate needs to be switched, all infrared emission lights are turned off first until the refresh mode is determined and then turned on accordingly.

[0106] Fig. 9 is a structural diagram of an electronic device provided according to an exemplary embodiment. The electronic device includes a first receiver 2060 and a second receiver 2062 . The first infrared transmitter 203 is located between the first receiver 2060 and the second receiver 2062 .

[0107] For example, an additional receiving device is placed on the elevated board where the receiving device and the transmitting lamp are placed, forming a receiving-transmitting-receiving layout.

[0108] In this implementation, an infrared receiver is added based on an infrared transmitter and an infrared receiver. The implementation of the infrared transmitter can be consistent with the first infrared transmitter 203, that is, the falling edge of the vertical synchronization signal is used as the transmission trigger signal.

[0109] In some embodiments, the distance between the first infrared transmitter 203 and the first receiver 2060 is equal to the distance between the first infrared transmitter 203 and the second receiver 2062 .

[0110] Fig. 10A is a schematic diagram of a sensor layout according to an exemplary embodiment. Fig. 10A In the screen refresh mode, the screen refresh mode is row refresh mode. The infrared emitting lights on the raised board are placed in a row between the two receiving devices, with the same distance from the two receiving devices. The lights are as far away from the top of the screen as possible, and no more than 15mm from the top of the screen to ensure that the automatic screen off function works normally in the call proximity scenario.

[0111] Fig. 10B is a schematic diagram of a sensor layout according to an exemplary embodiment. Fig. 10BIn the screen refresh mode, the screen refresh mode is column refresh mode. The infrared emitting lamps on the pad board should be placed in a column between the two receiving devices, with equal distances from the two receiving devices. The lamps should be as far away from the left side of the screen as possible, and no more than 15mm from the center of the screen to ensure that the automatic screen off function works normally in the call proximity scenario.

[0112] In addition, Fig. 10A and 10B In addition to setting the infrared emitting lamp and the receiving device in the illustrated area, the infrared emitting lamp and the receiving device may also be set in other areas for preventing accidental touches according to corresponding implementation methods.

[0113] Furthermore, the number of infrared emitting lamps in each group may be less than 4 or greater than 4, provided that the number remains consistent.

[0114] It can be understood that by adopting this implementation mode, the transmission power of the infrared transmitting lamp can be reduced within a reasonable range (by reducing the current, pulse width, etc.), and the total effective return value of the two receiving devices (receiving 1 + receiving 2 - background noise 1 - background noise 2) is used as the total infrared return value in the algorithm.

[0115] It is understandable that due to the limitation of device layout, the infrared transmitter may not be far away from the top or left side of the screen, so there is no way to ensure that after using the falling edge as a trigger, the time difference between emission and refresh is long enough to eliminate the possible dark spots. It is known that the higher the transmission power, the higher the possibility of the screen being excited, and the more obvious the dark spots generated by the excitation. Therefore, after adding a receiving device, the infrared return value obtained will double, which means that the infrared return value equivalent to or even higher than that of a single receiving device can be obtained through a lower transmission power, thereby reducing the risk of flash points or screen burn-in on the screen while reducing power consumption and optimizing the proximity sensor function.

[0116] It can be seen from the introduction of the implementation methods of the above electronic device that the embodiments of the present disclosure mainly provide three optional implementation methods to avoid the light spots generated by infrared light emission being noticed by users.

[0117] In a first optional implementation, a group of infrared transmitters and corresponding receiving devices are provided; the group of infrared transmitters are as far away from the corresponding display screen as possible (depending on different screen refresh modes), and the falling edge of the vertical synchronization signal is used as the transmission trigger signal. Furthermore, the group of infrared transmitters has the same transmission delay at different screen refresh rates, and the transmission delay can be determined by taking the average value through pre-tests.

[0118] By adopting this implementation method, compared with the solution in which the related technology cannot be applied to the dynamic refresh rate scenario, this solution can be applied to both fixed refresh rate and dynamic refresh rate, while ensuring the normal function of the proximity sensor and avoiding the risk of screen flashing or burning.

[0119] In a second optional embodiment, two groups of infrared transmitters and corresponding receiving devices are set, and the two groups of infrared transmitters share a receiving device, and the receiving device is arranged between the two groups of infrared transmitters. One group of infrared transmitters is as far away from the corresponding display screen position as possible (depending on different screen refresh modes), and this group of infrared transmitters uses the falling edge of the vertical synchronization signal as the emission trigger signal. The other group of infrared transmitters does not need to be far away from the corresponding display screen position, and uses the rising edge of the vertical synchronization signal as the emission trigger signal. Furthermore, since the two groups of infrared transmitters use different emission trigger signals, the corresponding emission delays are also set separately. And, the controller can associate the control of the two groups of infrared transmitters with the refresh mode of the screen to achieve control of different infrared transmitters to emit infrared light under different screen refresh modes.

[0120] By adopting this implementation method, compared with the solution of the related art that cannot be applied to the dynamic refresh rate scenario, this solution can enable the mobile phone to be applied to both fixed refresh rate and dynamic refresh rate, while ensuring the normal function of the proximity sensor and avoiding the risk of screen flash or screen burn-in. In addition, compared with the single-trigger under-screen proximity sensor solution of the related art, this solution simultaneously uses and divides the application scenarios triggered by the rising edge and falling edge of the vertical synchronization signal, which can minimize the impact of the emission light on the screen.

[0121] In a third optional implementation, a group of infrared transmitters and two corresponding receiving devices are provided, the group of infrared transmitters is provided between the two receivers, and the falling edge of the vertical synchronization signal is used as the transmission trigger signal. Furthermore, the group of infrared transmitters has the same transmission delay under different screen refresh rates, and the transmission delay can be determined by taking the average value through pre-testing.

[0122] By adopting this implementation method, compared with the solution of the related art that cannot be applied to the dynamic refresh rate scenario, this solution can enable the mobile phone to be applied to both fixed refresh rate and dynamic refresh rate, while ensuring the normal function of the proximity sensor, avoiding the risk of screen flash or screen burn-in. In addition, compared with the under-screen proximity sensor solution of the related art with a single receiving device, this solution uses two receiving devices to increase the infrared energy received by the system, thereby reducing the power consumption of infrared emission, and further reducing the risk of screen flash and screen burn-in.

[0123] It can be seen that no matter which of the above implementation methods is adopted, it is possible to avoid the bright spots caused by infrared light being noticed by users and reduce the risk of screen burn-in of the display.

[0124] In addition, an optional implementation is also provided in the embodiment of the present disclosure to be applicable to more accidental touch prevention scenarios. In this optional implementation, infrared emitting devices and receiving devices are arranged in more than one area, and infrared emitting devices and receiving devices are also arranged in other areas accordingly.

[0125] Therefore, compared with the existing under-screen proximity sensor solution, the addition of transmitting and receiving devices on the small board can cover more automatic screen off and accidental touch prevention scenarios, such as holding the lower half of the phone frontally or only the lower half of the phone in the pocket.

[0126] Fig.11 is a flow chart of a method for controlling an infrared transmitter according to an exemplary embodiment. Fig.11 As shown, the control method can be applied to the electronic device (eg, the controller of the electronic device) of the embodiment of the present disclosure, and includes the following steps.

[0127] Step S1101 , obtaining a vertical synchronization signal of the display screen 202 .

[0128] In step S1101 , a vertical synchronization signal may be obtained from a controller corresponding to the display screen 202 , and the vertical synchronization signal is used to implement corresponding control of the display screen 202 .

[0129] Step S1102, controlling the infrared transmitter under the screen to emit infrared light according to the vertical synchronization signal and the preset emission delay.

[0130] With reference to the foregoing embodiments, in step S1102, the under-screen infrared transmitter may be implemented in a variety of ways. Regardless of the implementation, the vertical synchronization signal and the preset emission delay may be combined to control the corresponding infrared transmitter to emit infrared light.

[0131] Wherein, for the aforementioned first infrared emitter 203 , the emission of the first infrared emitter 203 is triggered by the falling edge of the vertical synchronization signal of the display screen 202 .

[0132] As an optional implementation, step S1102 includes: for the first infrared emitter 203, if the current time point is the falling edge of the vertical synchronization signal, the emission of the first infrared emitter 203 is triggered, and after a preset emission delay, the first infrared emitter 203 is controlled to emit infrared light.

[0133] In some embodiments, the preset transmission delay may include a first preset transmission delay corresponding to the first infrared transmitter 203, and different screen refresh rates correspond to the first preset transmission delay.

[0134] In combination with the introduction of the foregoing embodiment, in addition to the first infrared emitter 203, the under-screen infrared emitter may further include a second infrared emitter 206, and the emission of the second infrared emitter 206 is triggered by the rising edge of the vertical synchronization signal.

[0135] In this implementation (i.e., an implementation in which two infrared emitters are set), the control method further includes: determining a usage strategy for the under-screen infrared emitter according to a refresh mode of the display screen 202; the usage strategy is to use the first infrared emitter 203 or to use the second infrared emitter 206; correspondingly, step S1102 includes: controlling the emission of infrared light by the under-screen infrared emitter according to the usage strategy, the vertical synchronization signal and the preset emission delay.

[0136] In some embodiments, according to the refresh mode of the display screen 202, the usage strategy of the infrared transmitter under the screen is determined, including: if the refresh mode of the display screen 202 is a dynamic refresh mode, the usage strategy of the infrared transmitter under the screen is determined to use the first infrared transmitter 203; the refresh rate of the display screen 202 corresponding to the dynamic refresh mode changes dynamically; if the refresh mode of the display screen 202 is a fixed refresh mode, the usage strategy of the infrared transmitter under the screen is determined to use the second infrared transmitter 206; the refresh rate of the display screen 202 corresponding to the fixed refresh mode remains unchanged.

[0137] In this embodiment, if the refresh rate of the display screen 202 changes dynamically, only the first infrared emitter 203 needs to be used to emit infrared light; if the refresh rate of the display screen 202 remains fixed, only the second infrared emitter 206 needs to be used to emit infrared light.

[0138] In some embodiments, according to the usage strategy, the vertical synchronization signal and the preset emission delay, the emission of infrared light by the infrared emitter under the screen is controlled, including: if the usage strategy is to use the first infrared emitter 203, according to the falling edge of the vertical synchronization signal and the first preset emission delay, the first infrared emitter 203 is controlled to emit infrared light; and / or, if the usage strategy is to use the second infrared emitter 206, according to the rising edge of the vertical synchronization signal and the second preset emission delay, the second infrared emitter 206 is controlled to emit infrared light.

[0139] In this embodiment, when the first infrared emitter 203 is used to emit infrared light, the emission of the first infrared emitter 203 is triggered when the current time point is the falling edge of the vertical synchronization signal, and after a first preset emission delay, the first infrared emitter 203 is controlled to emit infrared light.

[0140] When the second infrared emitter 206 is used to emit infrared light, the emission of the second infrared emitter 206 is triggered when the current time point is the rising edge of the vertical synchronization signal, and after a second preset emission delay, the second infrared emitter 206 is controlled to emit infrared light.

[0141] In some embodiments, the first preset transmission delay and the second preset transmission delay are different; the first preset transmission delays corresponding to different screen refresh rates are the same; the first preset transmission delay and the second preset transmission delay are obtained by measuring a large number of delays without lightning and taking the average value.

[0142] In some embodiments, the emission period of the first infrared emitter 203 is greater than the emission period of the second infrared emitter 206 , that is, the emission period of the first infrared emitter 203 is longer than that of the second infrared emitter 206 .

[0143] In the disclosed embodiment, the specific configuration of the infrared transmitter under the screen in the above control method can be found in the implementation of the above electronic device and will not be repeated here.

[0144] In addition, if infrared transmitters and corresponding receiving devices are respectively disposed under at least two areas of the display screen 202 of the electronic device, the electronic device can be controlled according to different parameters, for example, different transmission delays.

[0145] For electronic devices, when a group of infrared transmitters is set, no matter whether the receiver is set with one group or two groups, the corresponding control method is the same; that is, the infrared transmitter is controlled to emit infrared light based on the falling edge of the vertical synchronization signal. When two groups of infrared transmitters are set, a control method based on the screen refresh mode needs to be adopted. Therefore, by adopting different control methods under different electronic device structures, the structure of the electronic device can be adapted to the corresponding control method; in other words, the corresponding control method can compensate for the situation where light spots may be generated to a certain extent, so as to fully ensure that the generated light spots are not noticed by the user, improve the user experience, and avoid the risk of screen burn-in.

[0146] Fig.12 is a block diagram of a control device for an infrared transmitter according to an exemplary embodiment. Fig.12 The device includes an acquisition module 1201 and a control module 1202.

[0147] The acquisition module 1201 is configured to acquire a vertical synchronization signal of the display screen 202 .

[0148] The control module 1202 is configured to: control the emission of infrared light by the infrared transmitter under the screen according to the vertical synchronization signal and the preset emission delay; wherein the infrared transmitter under the screen includes a first infrared transmitter 203, and the emission of the first infrared transmitter 203 is triggered by the falling edge of the vertical synchronization signal of the display screen 202.

[0149] In the embodiment of the present disclosure, the control module 1202 is also configured to: determine the usage strategy of the under-screen infrared emitter according to the refresh mode of the display screen 202; the usage strategy is to use the first infrared emitter 203 or to use the second infrared emitter 206; and control the emission of infrared light by the under-screen infrared emitter according to the usage strategy, the vertical synchronization signal and the preset emission delay.

[0150] In the embodiment of the present disclosure, the control module 1202 is further configured as follows: if the refresh mode of the display screen 202 is a dynamic refresh mode, determining that the usage strategy of the under-screen infrared transmitter is to use the first infrared transmitter 203; the refresh rate of the display screen 202 corresponding to the dynamic refresh mode changes dynamically; if the refresh mode of the display screen 202 is a fixed refresh mode, determining that the usage strategy of the under-screen infrared transmitter is to use the second infrared transmitter 206; the refresh rate of the display screen 202 corresponding to the fixed refresh mode remains unchanged.

[0151] In the embodiment of the present disclosure, the control module 1202 is further configured to: if the usage strategy is to use the first infrared emitter 203, control the first infrared emitter 203 to emit infrared light according to the falling edge of the vertical synchronization signal and the first preset emission delay; and / or, if the usage strategy is to use the second infrared emitter 206, control the second infrared emitter 206 to emit infrared light according to the rising edge of the vertical synchronization signal and the second preset emission delay.

[0152] In the embodiment of the present disclosure, the emission period of the first infrared emitter 203 is greater than the emission period of the second infrared emitter 206 .

[0153] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0154] The present disclosure also provides a computer-readable storage medium on which computer program instructions are stored. When the program instructions are executed by a processor, the steps of the infrared transmitter control method provided by the present disclosure are implemented.

[0155] Fig.131 is a block diagram of a device for implementing a control method of an infrared transmitter according to an exemplary embodiment. For example, the device 1300 may be a mobile phone, a computer, a digital broadcast terminal, a message transceiver device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc. The device 1300 may also be the aforementioned electronic device, and the components shown in the block diagram here are other components than those introduced in the aforementioned embodiments, and these components may have corresponding relationships with the aforementioned components.

[0156] Reference Fig.13 , the device 1300 may include one or more of the following components: a processing component 1302 , a memory 1304 , a power component 1306 , a multimedia component 1308 , an audio component 1310 , an input / output interface 1312 , a sensor component 1314 , and a communication component 1316 .

[0157] The processing component 1302 generally controls the overall operation of the device 1300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1302 may include one or more processors 1320 to execute instructions to complete all or part of the steps of the above-mentioned infrared emitter control method. In addition, the processing component 1302 may include one or more modules to facilitate the interaction between the processing component 1302 and other components. For example, the processing component 1302 may include a multimedia module to facilitate the interaction between the multimedia component 1308 and the processing component 1302.

[0158] The memory 1304 is configured to store various types of data to support the operation of the device 1300. Examples of such data include instructions for any application or method operating on the device 1300, contact data, phone book data, messages, pictures, videos, etc. The memory 1304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, 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 disk or optical disk.

[0159] The power supply component 1306 provides power to the various components of the device 1300. The power supply component 1306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the device 1300.

[0160] The multimedia component 1308 includes a screen that provides an output interface between the device 1300 and the user. 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 the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1308 includes a front camera and / or a rear camera. When the device 1300 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0161] The audio component 1310 is configured to output and / or input audio signals. For example, the audio component 1310 includes a microphone (MIC), and when the device 1300 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 1304 or sent via the communication component 1316. In some embodiments, the audio component 1310 also includes a speaker for outputting audio signals.

[0162] The input / output interface 1312 provides an interface between the processing component 1302 and the peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0163] The sensor assembly 1314 includes one or more sensors for providing various aspects of the status assessment of the device 1300. For example, the sensor assembly 1314 can detect the open / closed state of the device 1300, the relative positioning of components, such as the display and keypad of the device 1300, the sensor assembly 1314 can also detect the position change of the device 1300 or a component of the device 1300, the presence or absence of user contact with the device 1300, the orientation or acceleration / deceleration of the device 1300, and the temperature change of the device 1300. The sensor assembly 1314 can include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1314 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1314 can also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0164] The communication component 1316 is configured to facilitate wired or wireless communication between the device 1300 and other devices. The device 1300 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1316 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0165] In an exemplary embodiment, the device 1300 can 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 components to execute the above-mentioned infrared emitter control method.

[0166] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1304 including instructions, and the instructions can be executed by the processor 1320 of the device 1300 to complete the above-mentioned infrared emitter control method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0167] In another exemplary embodiment, a computer program product is further provided. The computer program product includes a computer program executable by a programmable device, and the computer program has a code portion for executing the above-mentioned infrared transmitter control method when executed by the programmable device.

[0168] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0169] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An electronic device, characterized in that: include: Equipment body; A display screen disposed on the device body; a first infrared emitter disposed in the device body and below the display screen; A controller is provided in the device body, and the controller is configured to: According to the vertical synchronization signal of the display screen and the first preset emission delay, the first infrared emitter is controlled to emit infrared light; wherein the emission of the first infrared emitter is triggered by the falling edge of the vertical synchronization signal of the display screen.

2. The electronic device according to claim 1, characterized in that: The electronic device further comprises: a receiver corresponding to the first infrared transmitter, wherein the distance between the first infrared transmitter and the first display screen is greater than the distance between the receiver corresponding to the first infrared transmitter and the first display screen; The controller is also configured to: The position of the first display screen is determined according to a screen refresh mode of the display screen.

3. The electronic device according to claim 1, characterized in that: The electronic device further includes a second infrared transmitter, and the controller is further configured to: According to the vertical synchronization signal of the display screen and the second preset emission delay, the second infrared emitter is controlled to emit infrared light; wherein the emission of the second infrared emitter is triggered by the rising edge of the vertical synchronization signal of the display screen.

4. The electronic device according to claim 3, characterized in that: The controller is also configured to: Determining a usage strategy of the under-screen infrared transmitter according to a refresh mode of the display screen; the usage strategy is to use the first infrared transmitter or to use the second infrared transmitter; According to the usage strategy, the vertical synchronization signal and the preset emission delay, the infrared transmitter under the screen is controlled to emit infrared light.

5. The electronic device according to claim 4, characterized in that: The controller is further configured to: If the refresh mode of the display screen is a dynamic refresh mode, determining that the use strategy of the under-screen infrared transmitter is to use the first infrared transmitter; the refresh rate of the display screen corresponding to the dynamic refresh mode changes dynamically; If the refresh mode of the display screen is a fixed refresh mode, the use strategy of the under-screen infrared transmitter is determined to be to use the second infrared transmitter; the refresh rate of the display screen corresponding to the fixed refresh mode remains unchanged.

6. The electronic device according to claim 4, characterized in that: The controller is further configured to: If the use strategy is to use the first infrared emitter, the first infrared emitter is controlled to emit infrared light according to the falling edge of the vertical synchronization signal and the first preset emission delay; and / or, If the use strategy is to use the second infrared emitter, the second infrared emitter is controlled to emit infrared light according to the rising edge of the vertical synchronization signal and the second preset emission delay.

7. The electronic device according to claim 6, characterized in that: The emission period of the first infrared emitter is greater than the emission period of the second infrared emitter.

8. The electronic device according to any one of claims 3 to 7, characterized in that: The distance between the second infrared emitter and the second display screen is smaller than the distance between the first infrared emitter and the second display screen; The controller is also configured to: The position of the second display screen is determined according to a screen refresh mode of the display screen.

9. The electronic device according to claim 8, characterized in that: The electronic device further includes a receiver disposed between the first infrared transmitter and the second infrared transmitter.

10. The electronic device according to any one of claims 3 to 7, characterized in that: The distance between the receiver and the first infrared transmitter is equal to the distance between the receiver and the second infrared transmitter.

11. The electronic device according to any one of claims 3 to 7, characterized in that: The number of the first infrared emitters is equal to the number of the second infrared emitters.

12. The electronic device according to claim 1, characterized in that: The electronic device further includes: a first receiver and a second receiver, and the first infrared transmitter is located between the first receiver and the second receiver.

13. The electronic device according to claim 12, characterized in that: The distance between the first infrared transmitter and the first receiver is equal to the distance between the first infrared transmitter and the second receiver.

14. The electronic device according to claim 1, characterized in that: The display screen includes at least two preset areas, and the first infrared transmitter and the receiver corresponding to the first infrared transmitter are respectively arranged below the at least two preset areas.

15. A method for controlling an infrared transmitter, characterized in that: include: Get the vertical synchronization signal of the display screen; According to the vertical synchronization signal and the preset emission delay, the under-screen infrared transmitter is controlled to emit infrared light; wherein the under-screen infrared transmitter includes a first infrared transmitter, and the emission of the first infrared transmitter is triggered by the falling edge of the vertical synchronization signal of the display screen.

16. A control device for an infrared transmitter, characterized in that: include: An acquisition module is configured to acquire a vertical synchronization signal of the display screen; The control module is configured to control the emission of infrared light by the infrared transmitter under the screen according to the vertical synchronization signal and a preset emission delay; wherein the infrared transmitter under the screen includes a first infrared transmitter, and the emission of the first infrared transmitter is triggered by the falling edge of the vertical synchronization signal of the display screen.

17. A control device for an infrared transmitter, characterized in that: include: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to: execute the steps of the method described in claim 15.

18. A computer-readable storage medium having computer program instructions stored thereon, characterized in that: When the program instructions are executed by a processor, the steps of the method described in claim 15 are implemented.

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