Terminal device and infrared light transmission method

Abstract

The application provides a terminal device and an infrared light transmission method. The proximity light emission component and the infrared remote control emission component of the terminal device are in a shared mode. Since the two components can be scene-exclusive but functionally coexist, the same infrared light, lampshade and appearance hole can be shared. The infrared remote control function or the proximity light detection function can be realized through the appearance hole as required. Thus, the hardware design can be simplified, and the cost can be reduced. In addition, the internal structure of the lampshade can be used to construct an infrared top passage parallel to the screen of the terminal device and an infrared forward passage perpendicular to the screen of the terminal device. The infrared light is transmitted through the infrared top passage and the infrared forward passage. Thus, the success rate of proximity light detection and infrared remote control can be improved, and the user experience can be improved.

Description

Technical Field

[0001] This application relates to the field of terminals, and more specifically, to a terminal device and an infrared light transmission method. Background Technology

[0002] Terminal devices can use proximity sensors (PS) to detect whether there are obstacles in the environment. For example, when making or receiving a phone call, the proximity sensor can be used to sense the proximity light reflected back to the terminal device by a face, thereby judging the proximity status of the obstacle (face) relative to the terminal device.

[0003] The most common approach at present is the under-display proximity light detection solution using organic light-emitting diodes (OLEDs). This solution has an independent proximity light emitting component. The proximity light is emitted upwards along the top path of the terminal device and enters the proximity light receiving area after being reflected by obstacles.

[0004] However, the above method has a complex architecture, requires additional proximity light hardware design costs, and may misjudge the proximity of obstacles due to the directional defects of the method. Summary of the Invention

[0005] This application provides a terminal device and an infrared light transmission method. The terminal device has a simple design, which can reduce hardware costs and improve the success rate of proximity detection and infrared remote control.

[0006] In a first aspect, a terminal device is provided, comprising: an infrared lamp, a lampshade, an infrared emitting aperture, an infrared controller, a glass cover, and a display screen. The infrared lamp is located below the glass cover, the lamp head of the infrared lamp is located below the lampshade, and the display screen is located below the glass cover.

[0007] Ink is applied to the underside of the glass cover, on the skirt of the lampshade, in the projection area onto the glass cover, forming an ink area. The infrared controller is connected to the infrared lamp and controls the lamp to emit infrared light, allowing the light to be transmitted through a first infrared path and a second infrared path. This infrared light is used for proximity detection or infrared remote control. The first infrared path starts from the lamp head area of ​​the infrared lamp, runs along the inner cavity of the lampshade, and faces the top of the terminal device. The second infrared path starts from the lamp head area of ​​the infrared lamp, runs along the skirt of the lampshade, and faces the display screen.

[0008] The infrared emission aperture is located at the top of the terminal device, through which infrared light transmitted along the first infrared path is transmitted to the outside of the terminal device. The ink area is used for transmitting infrared light transmitted along the second infrared path to the outside of the terminal device.

[0009] In this embodiment, the terminal device has an infrared emitting hole. The infrared light emitted from this hole is used for proximity light detection or infrared remote control, allowing both infrared remote control and proximity light detection to share a single external aperture. This simplifies hardware design and reduces costs. Furthermore, the terminal device has two infrared paths: one emitting towards the top of the device and the other towards the screen. Simultaneous transmission of infrared light through both paths improves the success rate of proximity light detection or infrared remote control.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, the terminal device further includes: a proximity light receiver located below the display screen; the proximity light receiver is used to receive infrared light, perform analog-to-digital conversion on the infrared light to obtain a proximity detection value, and detect whether there is an obstacle in the environment based on the proximity detection value, the proximity detection value is used to indicate the proximity state of the terminal device, the proximity state including approaching and moving away.

[0011] In this embodiment, the proximity light receiver is located on the lower side of the display screen, while the emitting area is located on the top sidewall of the terminal device. This helps to reduce the natural crosstalk between the emitted and received infrared light.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the first infrared path is parallel to the screen direction of the terminal device, and the second infrared path is perpendicular to the screen direction of the terminal device.

[0013] In the embodiments of this application, two infrared paths in different directions (or angles) are beneficial for the realization of proximity light detection or infrared remote control functions, thereby improving the detection reliability in all scenarios.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, the infrared controller includes an infrared remote control transmitting circuit and a proximity light transmitting circuit. The infrared remote control transmitting circuit and the proximity light transmitting circuit are connected in parallel to the cathode of the infrared lamp. The infrared remote control transmitting circuit and the proximity light transmitting circuit are mutually exclusive. The infrared light emitted by the infrared lamp is a first infrared carrier signal or a second infrared carrier signal. The infrared remote control transmitting circuit is used to transmit the first infrared carrier signal, which is used to achieve infrared remote control. The proximity light transmitting circuit is used to transmit the second infrared carrier signal, which is used to achieve proximity light detection.

[0015] In this embodiment, when infrared remote control functionality is required, the infrared remote control transmitting circuit can transmit a first infrared carrier signal, which is a carrier signal of an infrared signal, thus enabling infrared remote control functionality. In this case, the proximity light transmitting circuit is disabled. When proximity light detection functionality is required, the proximity light transmitting circuit can transmit a second infrared carrier signal, which is a carrier signal of the proximity light, thus enabling proximity light detection functionality. In this case, the infrared remote control transmitting circuit is disabled. This allows infrared remote control and proximity light detection scenarios to be mutually exclusive while maintaining their functionality.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, when the infrared light transmitted through the first infrared path is blocked by an obstacle around the terminal device, the infrared light transmitted through the second infrared path is enhanced; when the infrared light transmitted through the second infrared path is blocked by an obstacle around the terminal device, the infrared light transmitted through the first infrared path is enhanced.

[0017] In this embodiment, obstacles around the terminal device may approach the device at an inappropriate angle, blocking the infrared light transmitted through the first infrared path and preventing proximity detection or infrared remote control. However, some of the blocked infrared light can be reflected by the obstacle, pass through the lampshade, and return to the terminal device, where it can then be transmitted along the second infrared path, enhancing the infrared energy of the second infrared path. In other words, the infrared light lost by the first infrared path can be compensated by the second infrared path, thus improving the reliability of proximity detection or infrared remote control.

[0018] In conjunction with the first aspect, in some implementations of the first aspect, the lampshade has a refractive surface for adjusting the emission angle of the infrared light emitted by the infrared lamp, so that a first proportion of infrared light is emitted perpendicular to the screen direction of the terminal device, and a second proportion of infrared light is emitted parallel to the screen direction of the terminal device.

[0019] In this embodiment of the application, since the required directions (or angles) for infrared remote control and proximity light detection are different, in order to simultaneously meet the functional requirements of infrared remote control and proximity light detection, the structure of the lampshade can be adjusted to adjust the emission angle of the infrared light emitted by the infrared lamp.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the terminal device further includes: a housing and a mid-frame. The housing is located below the display screen, and the mid-frame is located between the display screen and the housing. The lampshade is embedded within the housing and the mid-frame.

[0021] In conjunction with the first aspect, in some implementations of the first aspect, a gap region exists between the mid-frame and the sidewall of the display screen, and the second infrared path is located in the gap region. This gap region is used for the transmission of infrared light through the second infrared path.

[0022] In this embodiment, since the gap area exists and the infrared lamp has a large emission angle, there is infrared light leaking into the inner cavity of the lamp cover. Therefore, the leaked infrared light can be transmitted through the second infrared path formed in the gap area.

[0023] In conjunction with the first aspect, in some implementations of the first aspect, the ink has an infrared transmittance of 940 nm.

[0024] In this embodiment, printing ink with 940nm infrared transmittance on the glass cover plate facilitates the transmission of infrared light through the second infrared path to the outside of the terminal device for proximity detection or infrared remote control.

[0025] Secondly, an infrared light transmission method is provided, applied to a terminal device including an infrared lamp, a lampshade, an infrared emitting aperture, an infrared controller, a glass cover, and a display screen. Ink is deployed on the underside of the glass cover and the skirt of the lampshade in the projection area on the glass cover, forming an ink area. The infrared controller is connected to the infrared lamp, and the infrared emitting aperture is located at the top of the terminal device. The method includes: controlling the infrared lamp to emit infrared light through the infrared controller, so that the infrared light is transmitted through a first infrared path and a second infrared path. The infrared light is used for proximity detection or infrared remote control. The first infrared path starts from the lamp head area of ​​the infrared lamp, runs along the inner cavity of the lampshade, and faces the top of the terminal device. The second infrared path starts from the lamp head area of ​​the infrared lamp, runs along the skirt of the lampshade, and faces the display screen. The infrared light transmitted along the first infrared path is transmitted to the outside of the terminal device through the infrared emitting aperture. The infrared light transmitted along the second infrared path is transmitted to the outside of the terminal device through the ink area.

[0026] In conjunction with the second aspect, in one possible implementation of the second aspect, the terminal device further includes a proximity light receiver located below the display screen. The method further includes: receiving infrared light through the proximity light sensor, performing analog-to-digital conversion on the infrared light to obtain a proximity detection value, and detecting whether there is an obstacle in the environment based on the proximity detection value. The proximity detection value is used to indicate the proximity state of the terminal device, which includes approaching and moving away.

[0027] In conjunction with the second aspect, in one possible implementation of the second aspect, the first infrared path is parallel to the screen direction of the terminal device, and the second infrared path is perpendicular to the screen direction of the terminal device.

[0028] In conjunction with the second aspect, in one possible implementation, the infrared controller includes an infrared remote control transmitting circuit and a proximity light transmitting circuit. The infrared remote control transmitting circuit and the proximity light transmitting circuit are connected in parallel to the cathode of the infrared lamp. The infrared remote control transmitting circuit and the proximity light transmitting circuit are mutually exclusive. The infrared light emitted by the infrared lamp is either a first infrared carrier signal or a second infrared carrier signal. The method further includes: transmitting the first infrared carrier signal through the infrared remote control transmitting circuit, the first infrared carrier signal being used to achieve infrared remote control. Alternatively, transmitting the second infrared carrier signal through the proximity light transmitting circuit, the second infrared carrier signal being used to achieve proximity light detection.

[0029] In conjunction with the second aspect, in one possible implementation of the second aspect, when the infrared light transmitted through the first infrared path is blocked by an obstacle around the terminal device, the infrared light transmitted through the second infrared path is enhanced; when the infrared light transmitted through the second infrared path is blocked by an obstacle around the terminal device, the infrared light transmitted through the first infrared path is enhanced.

[0030] In conjunction with the second aspect, in one possible implementation of the second aspect, the lampshade has a refractive surface. Controlling the infrared lamp to emit infrared light via the infrared controller, so that the infrared light is transmitted through a first infrared path and a second infrared path, includes: adjusting the emission angle of the infrared light emitted by the infrared lamp via the refractive surface of the lampshade, so that a first proportion of infrared light is emitted perpendicular to the screen direction of the terminal device, and a second proportion of infrared light is emitted parallel to the screen direction of the terminal device.

[0031] In conjunction with the second aspect, in one possible implementation of the second aspect, the ink has an infrared transmittance of 940 nm.

[0032] The infrared light transmission method provided in this application can emit infrared light through two infrared paths in different directions. After the infrared light transmitted through one path is blocked by an obstacle, it can continue to be transmitted through the other infrared path, which expands the emission angle of proximity light detection and infrared remote control and helps to improve the success rate of proximity light detection and infrared remote control. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the internal structure of a terminal device based on an under-display proximity light solution for OLED screens;

[0034] Figure 2 This is a schematic diagram of an infrared light emitting component provided in an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the internal structure of a terminal device provided in an embodiment of this application;

[0036] Figure 4 This is a schematic diagram of the internal structure of another terminal device provided in an embodiment of this application;

[0037] Figure 5 This is a schematic diagram of the internal structure of another terminal device provided in an embodiment of this application;

[0038] Figure 6 This is a topology diagram of an infrared lamp cathode control circuit provided in an embodiment of this application;

[0039] Figure 7 This is a topology diagram of another infrared lamp cathode control circuit provided in an embodiment of this application;

[0040] Figure 8 This is a schematic diagram of the internal structure of another terminal device provided in the embodiments of this application;

[0041] Figure 9 This is a schematic diagram of the internal structure of another terminal device provided in the embodiments of this application;

[0042] Figure 10 This is a schematic diagram of the internal optical path of a lampshade provided in an embodiment of this application;

[0043] Figure 11 This is a schematic diagram of another internal optical path of the lampshade provided in an embodiment of this application;

[0044] Figure 12 This is a schematic flowchart of an infrared light transmission method provided in an embodiment of this application. Detailed Implementation

[0045] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0046] In the embodiments of this application, terms such as "first" and "second" are used to distinguish identical or similar items with substantially the same function and effect. For example, "first path" and "second path" are used to distinguish different infrared light paths, but do not limit their order. Those skilled in the art will understand that terms such as "first" and "second" do not limit the quantity or execution order, and that "first" and "second" do not necessarily imply that they are different.

[0047] It should be noted that, in this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of words such as "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0048] This application embodiment can be applied to scenarios where the screen area is large and there is insufficient space on the front of the screen to implement the proximity light function. Furthermore, the screen in this application embodiment has transmittance; for example, a screen with transmittance of 1% or more at a light wavelength of 940nm can be defined as a screen with transmittance.

[0049] With the rapid development of terminal devices, full-screen displays have become a trend, leading to an increasing application of thin and transparent screens such as OLED displays. At the same time, the demand for placing proximity sensors directly under the screen to achieve proximity detection is becoming stronger.

[0050] In the under-display proximity light solution for OLED screens, in order to reduce crosstalk between the emitting and receiving areas, the emitting and proximity areas can be spatially separated. This allows the infrared light used for infrared remote control to be emitted through the top of the terminal device, while the infrared light used for proximity light detection is emitted through the gap in the terminal device. The reflected infrared light is then received by the under-display proximity light receiver to detect the proximity of obstacles.

[0051] Figure 1 This is a schematic diagram of the internal structure of a terminal device 100 based on an under-display proximity light solution for OLED screens. (See diagram for example.) Figure 1 As shown, the terminal device 100 includes a cover glass (CG) 101, a display screen 102, a small board 103, a proximity light receiver 104, at least one sealing and light-isolating component 105, a main board 106, a middle frame 107, a terminal device housing 108, an infrared emitting hole 109, adhesive 110, and an infrared emitting assembly 111.

[0052] The proximity light receiver 104 is located on the small board 103 and below the display screen 102. At least one sealing and light-isolating component 105 is used to isolate the proximity light receiver 104 from interference by ambient light leaking through the screen gaps of the terminal device 100. The small board 103 can be connected to the main board 106 via a spring clip, or the small board 103 can be soldered onto the main board 106. The infrared emitting component 111 is connected to the main board 106. Adhesive 110 is used to connect the CG 101 to the terminal device housing 108. The terminal device 100 can control the infrared emitting component 111 to emit infrared light to the outside of the terminal device 100 through the infrared emitting hole 109 to realize infrared remote control function.

[0053] There is a gap between the terminal device housing 108 and the terminal device screen. Infrared light emitted by the infrared emitting component can be emitted to the outside of the terminal device through the gap and received by the proximity light receiver 104 under the screen to realize the proximity light detection function.

[0054] For example, the proximity light receiver 104 receives infrared light and converts it into a proximity detection value, referred to as the P-β value, via an analog-to-digital converter (ADC). The P-β value can be used to represent the proximity state; the smaller the P-β value, the farther the obstacle (e.g., a face) is from the screen of the terminal device, indicating a "far away" state; the larger the P-β value, the closer the obstacle is to the screen of the terminal device, indicating a "close" state. The terminal device can control the screen to turn on or off based on the P-β value.

[0055] It should be understood that the small board 103 and the main board 106 may not be connected by the spring contact 105, that is, the small board can be directly soldered onto the main board 106. This application embodiment does not limit this.

[0056] It should be understood that the mid-frame 107 and the outer shell 108 of the terminal device 100 can be joined together by plastic, that is, the outer shell 107 and the mid-frame 112 can be integrated, and this application embodiment does not limit this.

[0057] The following is an analysis of the problems existing in the implementation of proximity light detection function in terminal device 100.

[0058] In terms of hardware design, due to the limited size of the terminal device 100 and the large number and complexity of its internal components, if two external holes are set at the top of the terminal device 100, one for transmitting infrared light for infrared remote control and the other for transmitting infrared light for proximity detection, it will affect the aesthetics of the terminal device, increase the design difficulty, and also increase the hardware cost.

[0059] Regarding proximity light detection performance, the terminal device 100 has a directional defect. This is because the terminal device 100 only has a light-emitting path along the external hole at the top of the terminal device 100, which is received by the proximity light receiver 104 placed below the display screen 102 (hereinafter referred to as under the screen). Thus, when the light-emitting path at the top of the terminal device 100 is blocked, the proximity light receiver 104 under the screen cannot receive the proximity light normally, and therefore cannot detect the distance between the obstacle and the terminal device 100 normally. This may lead to detection abnormalities, and the proximity state may be detected as the distance state.

[0060] In view of the aforementioned issues with the hardware design and performance of terminal devices, this application provides a terminal device in which the proximity light emitting component and the infrared remote control emitting component are in a shared mode. That is, they can share the same infrared lamp, lampshade, and external aperture. Infrared remote control and proximity light detection functions can be achieved through a single external aperture, simplifying hardware design and reducing costs. Furthermore, the internal structure of the lampshade can be used to construct a top path parallel to the terminal device's screen and a forward path perpendicular to the screen. Infrared light is transmitted through these top and forward paths, which improves the success rate of proximity light detection or infrared remote control, enhancing the user experience.

[0061] The basis for enabling infrared remote control and proximity light detection to share the same set of emitting components and appearance aperture in this application embodiment is that the requirement for infrared remote control function is time-division multiplexing and not continuously present. Furthermore, since both infrared remote control and proximity light detection use the infrared band of approximately 940nm, there is a natural coupling between them. If they operate simultaneously, crosstalk will occur, which is why they cannot coexist. Hereinafter, the emitted light waves of infrared remote control and proximity light detection will be collectively referred to as infrared light, and the emitting component shared by infrared remote control and proximity light detection will be referred to as the infrared light emitting component.

[0062] It should be understood that the infrared remote control scenario and the proximity light detection scenario of the terminal device provided in the embodiments of this application do not exist simultaneously, but the functional coexistence of the two can be achieved through the cathode control circuit topology.

[0063] Figure 2 This is a schematic diagram of an infrared emitting component 200 provided in an embodiment of this application. Figure 2 As can be seen, the infrared emitting component 200 includes an infrared lamp 201 and a lampshade 202, and the lampshade 202 includes a lampshade refraction surface 203. Among them, a is a possible schematic diagram of an infrared lamp, and b and c are two possible schematic diagrams of lampshades. The lampshades shown in b and c have lampshade refraction surfaces with different shapes, and different refraction surfaces may bring different infrared light refraction effects.

[0064] For example, the infrared light is a light-emitting diode (LED) light.

[0065] It should be understood that the infrared lamp 201 and the lamp cover 202 may have other different shapes and structures. For example, the width and height of the main body of the lamp cover 202 may be adjusted, and the embodiments of this application do not limit this.

[0066] For example, the lampshade 202 is made of an injection-molded material with an infrared transmittance of 940 nm. Due to the high transmittance of the lampshade 202, the actual effect of the angle calculation is also improved, and the signal-to-noise ratio (SNR) of the entire proximity light detection system is also significantly improved.

[0067] It should be understood that the above-mentioned 940nm infrared transmittance means that the ink area has a transmittance of more than 40% for 940nm infrared light.

[0068] It should be understood that, in the embodiments of this application, infrared remote control and proximity light detection can be used interchangeably. Figure 1 The infrared emitting component 111 in the light can achieve "one light for two purposes", that is, the infrared light 201 can realize both infrared remote control function and proximity light detection function.

[0069] Typically, when a user uses a handheld terminal device, the screen of the terminal device is facing the user's face. The user expects to achieve infrared remote control without adjusting the angle of the terminal device. In other words, infrared remote control requires infrared light directed towards the top of the phone, while proximity detection usually requires infrared light directed towards the phone screen or parallel to the phone screen. Therefore, the required directions (or angles) for infrared remote control and proximity detection are different.

[0070] To improve the success rate of proximity light detection and infrared remote control, and to simultaneously achieve both infrared remote control and proximity light detection functions, the structure of the lamp cover 202 can be adjusted to distribute the infrared energy emitted by the infrared lamp 201.

[0071] For example, a refractive surface 203 can be designed in the middle part of the skirt of the lampshade 202 to separate the infrared energy emitted by the infrared lamp 201, so that more infrared energy is directed (i.e., perpendicular to) the direction of the mobile phone screen or parallel to the direction of the mobile phone screen, thereby meeting the needs of proximity detection. The rest of the skirt of the lampshade 202 is flat and without bevels, which can meet the needs of conventional infrared remote control scenarios. By distributing infrared energy through such a lampshade design with local refraction and local flatness, the application needs of infrared remote control and proximity detection at different angles can be taken into account, allowing the functionality of both to coexist.

[0072] For example, 70% of the infrared energy emitted by the infrared lamp 201 can be used to achieve the proximity light detection function, and the other 30% of the infrared energy can be used to achieve the infrared remote control function. This is because the infrared remote control scenario can be configured with a higher drive current than the proximity light detection scenario. The infrared remote control function can be achieved by increasing the drive current, while the emission current of the general proximity light has a functional bottleneck and cannot be configured with a higher drive current. Therefore, it is necessary to design the lamp cover 202 to allocate more infrared energy to achieve the proximity light detection function. It should be understood that there can be other infrared energy allocation ratios, and the embodiments of this application are not limited to these.

[0073] It should be understood that different proportions of infrared energy distribution can also be achieved by adjusting the width of the refractive area of ​​the lampshade refractive surface 203, and this application embodiment does not limit this.

[0074] Figure 2 The shapes of the infrared lamps and lampshades shown are merely examples; other different shapes are also possible, and this application does not limit them.

[0075] The following example uses an infrared light emitting component located at the top of the terminal device and a proximity light receiver located under the screen, combined with... Figures 3 to 11 The terminal device provided in this embodiment will be described in detail.

[0076] Figure 3 This is a schematic diagram of the internal structure of a terminal device 300 provided in an embodiment of this application. Figure 3 This is a cross-sectional view of the internal structure of the terminal device 300 with the glass cover CG 301 facing upwards and placed horizontally. (See diagram below.) Figure 3 As shown, the terminal device 300 may include: CG 301, optically clear adhesive (OCA) 302, polarizer 303, display screen 304, support layer (BF) 305, web adhesive 306, foam 307, polyimide (PI) layer 308, and copper foil 309, which constitute the screen of the terminal device 300. The terminal device 300 also includes: terminal device housing 310, mid-frame 311, small board 312, main board 313, proximity light receiver 314, insulating foam 315, lampshade 316, infrared lamp 317, infrared controller 318, infrared emitting hole 319, gap area 320, ink 321, and adhesive 322.

[0077] It should be understood that infrared lamp 317 and Figure 2 Similar to the infrared lamp 201, the lampshade 316 can also have the following characteristics: Figure 2 b in or such Figure 2 The structure shown in 'c' will be referred to below as 'c'. Figure 2The lampshade structure shown in b is used as an example for introduction.

[0078] The glass cover CG 301 is located at the top of the horizontally placed terminal device 300, serving to protect the terminal device 300. Below the glass cover CG is OCA 302, a special adhesive used for bonding transparent optical components (such as lenses). It is colorless and transparent, with a light transmittance of over 90%, good bonding strength, and can cure at room temperature or medium temperature, exhibiting low curing shrinkage. Below OCA 302 is the display screen 304, used for displaying images. The support layer (BF) 305 is light-transmitting.

[0079] The adhesive 306, support layer 305, display screen 304, polarizer 303, OCA 302, and CG 301 are light-transmitting. The foam 307, PI layer 308, and copper foil 309 have openings that form light-transmitting areas (as shown by the dotted lines on the foam 307, PI layer 308, and copper foil 309 in the figure). These light-transmitting areas allow infrared light to pass through, while the remaining portions are light-shielding.

[0080] The proximity light sensor 314 is located below the screen, above the small board 312, and in the opening of the middle frame 311. It can receive infrared light returned from outside the terminal device 300 through the light-transmitting area.

[0081] The infrared controller 318 can control the infrared lamp 317 to emit infrared light to achieve infrared remote control or proximity detection functions. The infrared light can be emitted through the infrared emitting hole 319 on the top of the terminal device. The function of the infrared controller 318 can be implemented by hardware or by hardware executing corresponding software. This application embodiment does not limit this.

[0082] In the terminal device 300, the skirt of the lampshade 316 has a projection area on the plane where CG 301 is located. Infrared rays (IR) ink 321 can be printed in this area to form an ink area. The IR ink can provide infrared light transmittance of 940nm.

[0083] The purpose of the insulating foam 315 is to isolate infrared crosstalk between the transmitter and receiver. Therefore, the placement of the insulating foam 315 is sufficient as long as it serves the purpose of isolating crosstalk. The specific placement of the insulating foam 315 is not limited in this embodiment.

[0084] In this embodiment, some infrared light may leak into the gap region 320, which may cause crosstalk to the infrared light received by the proximity light receiver 104. Therefore, an insulating foam 315 can be placed obliquely between the transmitting and receiving regions to reduce the impact of leaked infrared light on the proximity light receiver 314, thereby improving the accuracy of the proximity light detection results.

[0085] Since the infrared emitting components (i.e., infrared lamp 317 and lamp cover 316) are located on the top of the terminal device 300 and the proximity light receiver 314 is located below the display screen 304, the proximity light emission and reception can be located on different small boards, which helps to improve crosstalk between emission and reception.

[0086] There is a gap area 320 between the lampshade 316 and CG 301. Due to the large emission angle of the LED light source, in addition to the infrared light emitted towards the top of the terminal device, some infrared light may leak into the gap area 320. Therefore, it is possible to emit the leaked infrared light through the ink area on CG 301 and receive it by the proximity light receiver 314 under the screen to achieve the proximity light detection function. Since the proximity light emitting component is not under the screen, this helps to solve the screen spot problem caused by the emitting component being under the screen. The specific implementation process of proximity light detection will be described below.

[0087] For example, the opening of the aforementioned gap region 320 is within 0.7mm, and the distance between the lampshade 316 and CG 301 is about 1mm.

[0088] It should be understood that the proximity light sensor in this application embodiment includes a proximity light emitting component and a proximity light receiver. The proximity light emitting component and the proximity light receiver can be set independently and connected by hardware. This application embodiment does not limit this.

[0089] Figure 4 This is a schematic diagram of the internal structure of another terminal device 400 provided in an embodiment of this application. The terminal device 400 is a schematic diagram of the internal structure of the terminal device 300 shown above, with CG 301 placed vertically. For example... Figure 4 As shown, the terminal device 400 consists of, from back to front, CG 301, OCA 302, polarizer 303, display screen 304, foam 307, proximity light receiver 314, and ink 321.

[0090] It should be understood that Figure 4 The internal structure diagram of the terminal device 400 shown also includes: a support layer 305, a network adhesive 306, a PI layer 308, a copper foil 309, a terminal device shell 310, and a middle frame 311. Figure 4 Not shown in the text, other structures are similar to terminal device 300, and will not be described in detail here.

[0091] Combination Figure 2 and Figure 3 It is known that the ink area formed by ink 321 on CG 301 faces the projection area of ​​the skirt edge of lampshade 316. Since this ink area has an infrared transmittance of 940nm, allowing infrared light to pass through, some of the infrared light leaked by infrared lamp 317 can be emitted through the ink area and received by the proximity light receiver 314 under the screen. Compared with the proximity light scheme that only has a light-transmitting area at the top, this embodiment of the application is equivalent to adding a light-transmitting area perpendicular to the screen direction. In this way, when the infrared light emitted from the top light-transmitting area parallel to the screen direction cannot normally realize proximity light detection or infrared remote control, the light-transmitting area perpendicular to the screen direction can be used as compensation to realize proximity light detection or infrared remote control, which is beneficial to improving the success rate of proximity light detection or infrared remote control. The specific optical path compensation process will be combined with the following description. Figure 8 and Figure 9 The description will be introduced.

[0092] Figure 5 This is a schematic diagram of the internal structure of another terminal device 500 provided in an embodiment of this application. The terminal device 500 is a schematic diagram of the internal structure of the terminal device 300 shown above, with CG 301 placed vertically. For example... Figure 5 As shown, the terminal device 500 includes: CG 301, display screen 304, terminal device housing 310, mid-frame 311, proximity light receiver 314, lamp cover 316, infrared light 317, infrared controller 318, infrared emitting hole 319, gap area 320, and ink 321.

[0093] It should be understood that Figure 5 The internal structure diagram of the terminal device 500 shown also includes: OCA 302, polarizer 303, support layer 305, network adhesive 306, foam 307, PI layer 308, copper foil 309, and isolation foam 315. Figure 5 It was not shown in the text.

[0094] When the infrared controller 318 implements both infrared remote control and proximity light detection functions using hardware circuitry, its circuit configuration can be as follows: Figure 6 or Figure 7 As shown.

[0095] Figure 6 This is a topology diagram of an infrared lamp cathode control circuit 600 provided in an embodiment of this application. The circuit 600 includes a power supply 601, an infrared lamp 317, an infrared remote control transmitting circuit 602, and a proximity light transmitting circuit 603. The infrared remote control transmitting circuit 602 and the proximity light transmitting circuit 603 are connected in parallel to the cathode of the infrared lamp 317 to control the cathode of the infrared lamp 317.

[0096] For example, the infrared remote control transmitting circuit 602 and the proximity light transmitting circuit 603 can be circuits that support carrier transmission. This circuit can be equivalent to a controlled current source generator, which provides better current consistency. Correspondingly, the infrared remote control transmitting circuit 602 can send pulse-coded waveforms to the infrared lamp 317 in the form of a pulsed current source, thereby controlling the infrared lamp 317 to periodically light up and turn off. The proximity light transmitting circuit 603 can send coded energy to the infrared lamp 317 to control the infrared lamp 317 to achieve the proximity light detection function.

[0097] Taking the infrared remote control transmitting circuit 602 and the proximity light transmitting circuit 603 as controlled current source generators (hereinafter referred to as current sources) as an example, since the two current sources are connected in parallel at the cathode of the infrared lamp 317, the current source model exhibits a low resistance state when not in operation. Furthermore, the requirement for the coexistence of infrared remote control function and proximity light detection function is almost zero, that is, it is either A or B, or B or A, or neither of them works. Therefore, it can support the mutually exclusive working mode of infrared remote control and proximity light detection.

[0098] For example, in an infrared remote control scenario, the proximity light emitting circuit 603 can be disabled, preventing the proximity light emitting circuit 602 from controlling the infrared lamp 317. Instead, the infrared remote control emitting circuit 602 controls the infrared lamp 317 to emit a carrier signal of the infrared signal, thereby realizing the infrared remote control function.

[0099] For example, in a proximity light detection scenario, the infrared remote control transmitting circuit 602 can be disabled, so that the infrared remote control transmitting circuit 602 cannot control the infrared lamp 317. Instead, the proximity light transmitting circuit 603 controls the infrared lamp 317 to emit a proximity light carrier signal, thereby realizing the detection of the proximity state.

[0100] Figure 7 This is a topology diagram of another infrared lamp cathode control circuit 700 provided in an embodiment of this application. The circuit 700 includes a power supply 701, an infrared lamp 317, an infrared remote control transmitting circuit 702, and a proximity light transmitting circuit 703. The infrared remote control transmitting circuit 702 and the proximity light transmitting circuit 703 are connected in parallel to the cathode of the infrared lamp 317 to control the cathode of the infrared lamp 317.

[0101] For example, the infrared remote control transmitting circuit 702 can be a pulse switch, controlling the current flow of the infrared lamp 317 in a pulsed switching manner. That is, the emitting part of the proximity light sensor can directly control the cathode of the infrared lamp 317 and is connected in parallel to the infrared remote control circuit. For example, the magnitude of the infrared light emitting current can be 200mA.

[0102] It should be understood that the difference between circuit 600 and circuit 700 lies in the form of the infrared remote control circuit. In circuit 600, the infrared remote control transmitting circuit 602 is a controlled pulsating current source, while in circuit 700, the infrared remote control transmitting circuit 702 is a pulsating switch. Furthermore, the proximity light emitting circuit 703 in circuit 700 can also be a pulsating switch; this application does not limit this aspect.

[0103] The above combination Figures 3 to 7 A terminal device is described that uses the same set of transmitting components for infrared remote control and proximity light detection. In the gap area 320 between the lamp cover 316 and CG 301, there may be some infrared light leaked by the infrared lamp 317 along the edge of the lamp cover 316. In actual infrared remote control and proximity light detection scenarios, this part of the infrared light can be used to extend the emission angle.

[0104] Figure 8 This is a schematic diagram of the internal structure of another terminal device 800 provided in this application embodiment. Compared to terminal device 300, terminal device 800 shows the infrared light path inside the terminal device when the proximity light detection function is actually triggered. Figure 8 It can be seen that the infrared light emitted by the infrared lamp 317, in addition to having a first infrared path (hereinafter referred to as the infrared top path) toward the top of the terminal device 800, also has an infrared path in the gap area 320 ( Figure 9 (Not shown in the text) There is a second infrared path (hereinafter referred to as the infrared forward path) facing the screen of the terminal device 800.

[0105] Optionally, the screen edge of the terminal device 800 has a light-transmitting area, which can also be used to transmit infrared light to the outside of the terminal device 800 to achieve proximity light detection or infrared remote control.

[0106] It should be understood that the infrared top path starts from the lamp head area of ​​the infrared lamp 317, runs along the inner cavity of the lamp cover 316, and faces the top of the terminal device 800. This infrared top path is parallel to the screen direction of the terminal device 800. The infrared forward path starts from the lamp head area of ​​the infrared lamp 317, runs along the skirt of the lamp cover 316, and faces the display screen 304. This infrared forward path is perpendicular to the screen direction of the terminal device 800. Both infrared lights emitted at different angles can be received by the proximity receiver 314 under the screen, thereby realizing proximity detection.

[0107] In an ideal scenario, the infrared light emitted by the two infrared paths described above can be normally received by the under-screen proximity light receiver 314. However, if there are obstacles near the terminal device 800 that prevent the proximity light receiver 314 from receiving the proximity light normally, it may cause incorrect recognition of the proximity status.

[0108] Figure 9 This is a schematic diagram of the internal structure of another terminal device 900 provided in this application embodiment. The terminal device 900 adds an obstacle 910 compared to the terminal device 800. Figure 9 It can be seen that when there is an obstacle 910 at the top of the terminal device 900 as shown in the figure, the infrared light emitted by the infrared lamp 317 is emitted through the infrared top path. When it encounters the obstruction of the obstacle 910, it cannot be received by the proximity light receiver 314 under the screen, resulting in the interruption of the loop from transmission to reception.

[0109] However, in proximity detection scenarios, since there is still an infrared forward path in the gap area 320 of the terminal device 900, the infrared light emitted by the infrared lamp 317 can also be emitted along the edge of the lampshade 316 from the infrared forward path and received by the proximity light receiver 314 under the screen. In addition, although the infrared light emitted through the infrared top path is blocked by the obstacle 910 and cannot achieve the proximity light detection function, this part of the infrared light will be reflected back by the lampshade 316 after being blocked by the obstacle 910. The reflected infrared light can then be emitted along the edge of the lampshade 316 from the infrared forward path. This can enhance the infrared energy of the infrared forward path, which is equivalent to compensating for the energy loss of the infrared top path through the infrared forward path. The proximity light receiver 314 under the screen can also obtain the infrared energy required for proximity light detection, which helps to improve the success rate of proximity light detection.

[0110] It should be understood that when infrared light passing through the infrared forward path is blocked by an obstacle, the infrared energy of the infrared top path can be enhanced, which will not be elaborated here.

[0111] In such Figure 8 When there are no obstacles around the terminal device 800 shown, due to crosstalk in the infrared light emitted by the infrared lamp 317 inside the lamp cover 316, some infrared light leaks through the gap area 320 to the proximity light receiver 314. This is unavoidable, and the infrared energy of this part is defined as A.

[0112] In one possible scenario, when a user makes or receives a call using the terminal device 900, in order to prevent accidental screen touches by the face, the terminal device 900 can use a proximity detection function to detect the proximity of the face and control whether the screen is on or off based on the detected proximity. For example, if a face is detected to be "close", the terminal device 900 can control the screen to be off to prevent accidental screen touches from affecting the call.

[0113] However, in scenarios where the terminal device uses proximity light detection, the user's hand position when holding the terminal device 900 may cause their head to block the infrared light emitted through the top infrared path. In this case, the obstacle 910 is the user's head. When the infrared light emitted by the infrared lamp 317 is blocked by the obstacle 910, some of the infrared light will be reflected back to the lamp cover 316 by the obstacle 910, and the amount of infrared light leaking to the proximity light receiver 314 through the gap area 320 will also increase. This portion of infrared energy is defined as B. The result value of B can be used to detect whether there is an obstacle on top of the terminal device, which can compensate for the situation where... Figure 9 The erroneous detection of proximity caused by the obstruction of obstacle 910 shown helps to improve the accuracy of proximity light detection, making the function feasible and ensuring the reliability of detection in the entire scene.

[0114] Alternatively, by increasing the intensity of infrared light emission, compensating infrared energy can be transmitted through the gap region 320, thus obtaining the infrared energy necessary for proximity light detection and improving the success rate of proximity light detection.

[0115] For scenarios where users utilize infrared remote control, the terminal device provided in this application embodiment can further extend the sensing angle of the infrared remote control. Typically, when a user uses a handheld terminal device to perform infrared remote control functions, the infrared emitter of the terminal device needs to be directly facing the receiving device, such as a television or air conditioner, which limits the angle of infrared remote control. However, the terminal device provided in this application embodiment has an infrared forward path perpendicular to the screen direction. Therefore, when the screen of the terminal device is angled towards the receiving device, the infrared light emitted through the infrared forward path can complete the infrared remote control function, enabling remote control functionality even at this angle, without requiring the user to directly face the infrared emitter at the top of the terminal device towards the receiving device, thus improving the user's infrared remote control experience.

[0116] In some scenarios, the infrared light emitted through the top infrared path may be blocked by an obstacle, preventing the infrared remote control function from being realized. In such cases, infrared light can be emitted through the front infrared path to achieve the infrared remote control function. Similarly, when the infrared light emitted through the front infrared path is blocked by an obstacle, the terminal device can also achieve the infrared remote control function by emitting infrared light through the top infrared path.

[0117] It should be understood that, unlike in proximity light detection scenarios where infrared light is received by a proximity light receiver, in infrared remote control scenarios, the infrared light passing through two paths is received by a receiving device outside the terminal device (e.g., an air conditioner or a television).

[0118] Optionally, in scenarios where infrared remote control learning is superimposed, infrared remote control learning can be performed through the aforementioned infrared forward path, thereby increasing the angle of infrared remote control learning.

[0119] Figure 10 This is a schematic diagram of the internal optical path of a lampshade provided in an embodiment of this application. Figure 10 by Figure 2 Taking the structure of the lampshade 202 shown in b as an example, after the infrared lamp 201 emits infrared light, the infrared light passes through the lampshade's refractive surface ( Figure 10 Not shown in the image, please refer to the image below. Figure 2 The refraction of the lampshade refraction surface 203 (shown in b) can form as follows: Figure 10 The refracted light, shown by the solid and dashed lines, ultimately passes through the skirt of the lampshade. Figure 10 Not shown in the image, please refer to the image below. Figure 2 The skirt edge 204 shown in b is emitted outwards. For example, based on... Figure 10 The lampshade structure shown allows 70% of the infrared energy emitted by the infrared lamp 201 to be used for proximity detection, while the remaining 30% is used for infrared remote control. In other words, 70% of the infrared light is transmitted through the infrared forward path, and 30% is transmitted through the infrared top path.

[0120] Figure 11 This is a schematic diagram of another internal optical path of the lampshade provided in an embodiment of this application. Figure 11 by Figure 2 Taking the structure of the lampshade 202 shown in Figure c as an example, after the infrared lamp 201 emits infrared light, the infrared light passes through the lampshade's refractive surface ( Figure 10 Not shown in the image, please refer to the image below. Figure 2 The refraction of the lampshade refraction surface 203 (shown in c) can form as follows: Figure 11 The refracted light, shown by the solid and dashed lines, ultimately passes through the skirt of the lampshade. Figure 10 Not shown in the image, please refer to the image below. Figure 2 The skirt edge 204 (shown as c) is emitted outwards. For example, based on... Figure 10 The lampshade structure shown allows 60% of the infrared energy emitted by the infrared lamp 201 to be used for proximity detection, while the remaining 40% is used for infrared remote control. In other words, 60% of the infrared light is transmitted through the infrared forward path, and 40% is transmitted through the infrared top path.

[0121] It should be understood that the above infrared light distribution ratio is only an example. Different lampshade structures can form different internal optical paths, and the refraction angle of infrared light will also be different, resulting in different infrared light distribution ratios. The lampshade structure designed in this application embodiment aims to refract some infrared light through the lampshade's refractive surface and emit it from the ink area on the screen through the skirt of the lampshade. This achieves proximity light detection or infrared remote control functions through two paths: the forward infrared path and the top infrared path. In other words, infrared light is transmitted in both infrared paths, which helps to improve the success rate of proximity light detection and infrared remote control.

[0122] This application also provides an infrared light transmission method that can emit infrared light through two infrared paths in different directions. If the infrared light transmitted through one of the paths is blocked by an obstacle, it can continue to be transmitted through the other infrared path, which expands the emission angle of proximity light detection and infrared remote control and helps to improve the success rate of proximity light detection and infrared remote control.

[0123] This infrared light transmission method is applied to a terminal device including an infrared lamp, a lampshade, an infrared emitting aperture, an infrared controller, a glass cover, and a display screen. Ink is deployed on the underside of the glass cover and the skirt of the lampshade in the projection area on the glass cover to form an ink area. The infrared controller is connected to the infrared lamp, and the infrared emitting aperture is located at the top of the terminal device.

[0124] Figure 12 This is a schematic flowchart of an infrared light transmission method 1200 provided in an embodiment of this application. Method 1200 includes the following steps:

[0125] S1201, the infrared controller controls the infrared lamp to emit infrared light so that the infrared light is transmitted through the first infrared path and the second infrared path. The infrared light is used for proximity detection or infrared remote control. The first infrared path starts from the lamp head area of ​​the infrared lamp, runs along the inner cavity of the lamp cover, and faces the top of the terminal device. The second infrared path starts from the lamp head area of ​​the infrared lamp, runs along the skirt of the lamp cover, and faces the display screen.

[0126] S1202, infrared light transmitted along the first infrared path is transmitted to the outside of the terminal device through the infrared emission hole.

[0127] S1203, the infrared light transmitted along the second infrared path is transmitted to the outside of the terminal device through the ink area.

[0128] Optionally, the terminal device further includes a proximity light receiver located below the display screen. Method 1200 further includes: receiving infrared light through the proximity light sensor, performing analog-to-digital conversion on the infrared light to obtain a proximity detection value, and detecting whether there is an obstacle in the environment based on the proximity detection value. The proximity detection value is used to indicate the proximity state of the terminal device, which includes approaching and moving away.

[0129] Optionally, the first infrared path is parallel to the screen direction of the terminal device, and the second infrared path is perpendicular to the screen direction of the terminal device.

[0130] Optionally, the infrared controller includes an infrared remote control transmitting circuit and a proximity light transmitting circuit. The infrared remote control transmitting circuit and the proximity light transmitting circuit are connected in parallel to the cathode of the infrared lamp. The infrared remote control transmitting circuit and the proximity light transmitting circuit are mutually exclusive. The infrared light emitted by the infrared lamp is either a first infrared carrier signal or a second infrared carrier signal. Method 1200 further includes: transmitting the first infrared carrier signal through the infrared remote control transmitting circuit, the first infrared carrier signal being used to achieve infrared remote control. Alternatively, transmitting the second infrared carrier signal through the proximity light transmitting circuit, the second infrared carrier signal being used to achieve proximity light detection.

[0131] Optionally, when the infrared light transmitted through the first infrared path is blocked by an obstacle around the terminal device, the infrared light transmitted through the second infrared path is enhanced; when the infrared light transmitted through the second infrared path is blocked by an obstacle around the terminal device, the infrared light transmitted through the first infrared path is enhanced.

[0132] Optionally, the lampshade has a refractive surface. Controlling the infrared lamp to emit infrared light via the infrared controller, S1201 includes: adjusting the emission angle of the infrared light emitted by the infrared lamp through the refractive surface of the lampshade, so that a first proportion of infrared light is emitted perpendicular to the screen direction of the terminal device, and a second proportion of infrared light is emitted parallel to the screen direction of the terminal device.

[0133] Optionally, the ink has an infrared transmittance of 940 nm.

[0134] The terminal device in this application embodiment can be a handheld device, vehicle-mounted device, etc. with wireless connection function. The terminal device can also be called a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. Currently, examples of terminals include: mobile phones, tablets, smart TVs, laptops, tablets, handheld computers, mobile internet devices (MIDs), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving vehicles, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or future public land mobile communication networks. Terminal devices in a mobile network (PLMN), etc., are not limited in the specific technologies or device forms used in the embodiments of this application.

[0135] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0136] Furthermore, in this embodiment, the terminal device can also be a terminal device in an Internet of Things (IoT) system. IoT is an important component of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection.

[0137] The terminal equipment in this application embodiment can also be referred to as: user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device, etc.

[0138] In this embodiment, the terminal device or various network devices include a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on top of the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and main memory. The operating system can be any one or more computer operating systems that implement business processing through processes, such as Linux, Unix, Android, iOS, or Windows. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software.

[0139] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0140] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0141] The terms "first," "second," "third," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "may include" and "have," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0142] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0143] The above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A terminal device, characterized in that, include: Infrared lights, lampshades, infrared emitters, infrared controllers, glass covers, and displays; The infrared lamp is located below the glass cover, the lamp head of the infrared lamp is located below the lampshade, and the display screen is located below the glass cover; Ink is deployed on the lower side of the glass cover and the skirt of the lampshade in the projection area of ​​the glass cover, forming an ink area; The infrared controller is connected to the infrared lamp and is used to control the infrared lamp to emit infrared light so that the infrared light is transmitted through a first infrared path and a second infrared path. The infrared light is used for proximity light detection or infrared remote control. The first infrared path starts from the lamp head area of ​​the infrared lamp, runs along the inner cavity of the lamp cover and toward the top of the terminal device and toward the display screen, and finally reaches the proximity light receiver on the lower side of the display screen. The second infrared path starts from the lamp head area of ​​the infrared lamp, runs along the skirt of the lamp cover and toward the display screen, and finally reaches the proximity light receiver on the lower side of the display screen. The infrared emitting aperture is located on the top of the terminal device and is used to transmit infrared light transmitted along the first infrared path to the outside of the terminal device through the infrared emitting aperture. The ink area is used to transmit infrared light along the second infrared path to the outside of the terminal device.

2. The terminal device according to claim 1, characterized in that, The terminal device also includes: A proximity light receiver is located below the display screen; The proximity light receiver is used to receive infrared light, perform analog-to-digital conversion on the infrared light to obtain a proximity detection value, and detect whether there is an obstacle in the environment based on the proximity detection value. The proximity detection value is used to indicate the proximity status of the terminal device, and the proximity status includes approaching and moving away.

3. The terminal device according to claim 1 or 2, characterized in that, The first infrared path is parallel to the screen direction of the terminal device, and the second infrared path is perpendicular to the screen direction of the terminal device.

4. The terminal device according to claim 1 or 2, characterized in that, The infrared controller includes an infrared remote control transmitting circuit and a proximity light transmitting circuit. The infrared remote control transmitting circuit and the proximity light transmitting circuit are connected in parallel to the cathode of the infrared lamp. The infrared remote control transmitting circuit and the proximity light transmitting circuit are mutually exclusive. The infrared light emitted by the infrared lamp is a first infrared carrier signal or a second infrared carrier signal. The infrared remote control transmitting circuit is used to transmit the first infrared carrier signal, and the first infrared carrier signal is used to realize infrared remote control. The proximity light emitting circuit is used to emit the second infrared carrier signal, which is used to achieve proximity light detection.

5. The terminal device according to claim 1 or 2, characterized in that, When the infrared light transmitted through the first infrared path is blocked by an obstacle around the terminal device, the infrared light transmitted through the second infrared path is enhanced; when the infrared light transmitted through the second infrared path is blocked by an obstacle around the terminal device, the infrared light transmitted through the first infrared path is enhanced.

6. The terminal device according to claim 1 or 2, characterized in that, The lampshade has a refractive surface for adjusting the emission angle of the infrared light emitted by the infrared lamp, so that a first proportion of infrared light is emitted perpendicular to the screen direction of the terminal device, and a second proportion of infrared light is emitted parallel to the screen direction of the terminal device.

7. The terminal device according to claim 1 or 2, characterized in that, The terminal device also includes: Shell and mid-frame; The outer casing is located below the display screen, and the middle frame is located between the display screen and the outer casing; The lampshade is embedded in the outer shell and the middle frame.

8. The terminal device according to claim 7, characterized in that, There is a gap between the middle frame and the side wall of the display screen, and the second infrared path is located in the gap. The slit area is used for the transmission of infrared light through the second infrared path.

9. The terminal device according to any one of claims 1-2 and 8, characterized in that, The ink has an infrared transmittance of 940 nm.

10. An infrared light transmission method, characterized in that, An application to a terminal device including an infrared lamp, a lampshade, an infrared emitting aperture, an infrared controller, a glass cover, and a display screen, wherein ink is deployed on the underside of the glass cover and the skirt of the lampshade in the projection area of ​​the glass cover to form an ink area, the infrared controller is connected to the infrared lamp, and the infrared emitting aperture is located at the top of the terminal device, the method comprising: The infrared controller controls the infrared lamp to emit infrared light, so that the infrared light is transmitted through a first infrared path and a second infrared path. The infrared light is used for proximity detection or infrared remote control. The first infrared path starts from the lamp head area of ​​the infrared lamp, runs along the inner cavity of the lamp cover and toward the top of the terminal device and toward the display screen, finally reaching the proximity light receiver on the lower side of the display screen. The second infrared path starts from the lamp head area of ​​the infrared lamp, runs along the skirt of the lamp cover and toward the display screen, finally reaching the proximity light receiver on the lower side of the display screen. Infrared light transmitted along the first infrared path is transmitted to the outside of the terminal device through the infrared emission aperture; Infrared light transmitted along the second infrared path is transmitted through the ink area to the outside of the terminal device.

11. The method according to claim 10, characterized in that, The terminal device further includes a proximity light receiver located below the display screen, and the method further includes: The proximity light receiver receives infrared light, performs analog-to-digital conversion on the infrared light to obtain a proximity detection value, and detects whether there are obstacles in the environment based on the proximity detection value. The proximity detection value is used to indicate the proximity status of the terminal device, and the proximity status includes approaching and moving away.

12. The method according to claim 10 or 11, characterized in that, The first infrared path is parallel to the screen direction of the terminal device, and the second infrared path is perpendicular to the screen direction of the terminal device.

13. The method according to claim 10 or 11, characterized in that, The infrared controller includes an infrared remote control transmitting circuit and a proximity light transmitting circuit. The infrared remote control transmitting circuit and the proximity light transmitting circuit are connected in parallel to the cathode of the infrared lamp. The infrared remote control transmitting circuit and the proximity light transmitting circuit are mutually exclusive. The infrared light emitted by the infrared lamp is a first infrared carrier signal or a second infrared carrier signal. The method further includes: The first infrared carrier signal is transmitted through the infrared remote control transmitting circuit, and the first infrared carrier signal is used to realize infrared remote control; or... The second infrared carrier signal is emitted through the proximity light emitting circuit, and the second infrared carrier signal is used to realize proximity light detection.

14. The method according to claim 10 or 11, characterized in that, When the infrared light transmitted through the first infrared path is blocked by an obstacle around the terminal device, the infrared light transmitted through the second infrared path is enhanced; when the infrared light transmitted through the second infrared path is blocked by an obstacle around the terminal device, the infrared light transmitted through the first infrared path is enhanced.

15. The method according to claim 10 or 11, characterized in that, The lampshade has a refractive surface; The step of controlling the infrared lamp to emit infrared light through the infrared controller, so that the infrared light is transmitted through the first infrared path and the second infrared path, includes: The emission angle of the infrared light emitted by the infrared lamp is adjusted by the refractive surface of the lampshade, so that a first proportion of infrared light is emitted perpendicular to the screen direction of the terminal device, and a second proportion of infrared light is emitted parallel to the screen direction of the terminal device.

16. The method according to claim 10 or 11, characterized in that, The ink has an infrared transmittance of 940 nm.

Images