Patent Description:
This application relates to the field of terminals, and more specifically, to a terminal device and an infrared light transmission method.

A terminal device may detect whether there is an obstacle in the environment with a proximity sensor (proximity sensor, PS). For example, when answering or making a call, a terminal device may sense, with a proximity sensor, proximity light reflected back to the terminal device by a face, so as to determine a proximity state of the obstacle (the face) relative to the terminal device.

At present, a common solution is organic light-emitting diode (organic light-emitting diode, OLED) under-screen proximity light detection. This solution has an independent proximity light emission component. Proximity light is emitted upwards along a path on the top of the terminal device and is reflected by an obstacle to enter a proximity light receiving area.

However, this method has a complex architecture and requires additional costs in designing proximity light hardware. In addition, a proximity state of an obstacle may be incorrectly determined due to the directional defect of this method.

<CIT> represents the state of the art in the field of such terminal devices as the one described herein; it discloses a terminal with a relatively high screen-to-body ratio, a lampshade, and an ambient light approaching module. The terminal comprises a frame, a screen and an ambient light approaching module. The periphery of the screen is fixedly connected with the frame, and the screen is provided with a photosensitive area allowing ambient light to penetrate. Through holes are formed in the frame. The ambient light approaching module comprises a lampshade and an ambient light approaching assembly. The lampshade is located on the inner side of the frame and partially contained in the through hole. The ambient light approaching assembly is located inside the frame. The ambient light proximity assembly includes a proximity sensor and an ambient light sensor. The proximity sensor comprises an emitter and a receiver, the emitter is used for emitting light into the lampshade, and the emitted light forms emergent light after passing through the lampshade. The emergent light intersects with the plane where the screen is located. The emergent light is reflected by the obstacle to form reflected light, and part of the reflected light passes through the lampshade to form induction light. The receiver is used for receiving induction light passing through the lampshade, and the ambient light sensor is used for receiving ambient light passing through the photosensitive area and the lampshade.

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

According to a first aspect, a terminal device is provided, including: an infrared lamp, a lampshade, an infrared emission hole, an infrared controller, a cover glass, and a display screen. The infrared lamp is located below the cover glass, the lamp head of the infrared lamp is located below the lampshade, and the display screen is located below the cover glass.

Ink is deployed on a lower side of the cover glass and in a projection area of the skirt of the lampshade on the cover glass, to form an ink area. The infrared controller is connected to the infrared lamp and is configured 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, and the infrared light is used for proximity light detection or infrared remote control. The first infrared path is an infrared path that starts from a lamp head area of the infrared lamp and passes along an inner cavity of the lampshade in a first direction that is parallel to the plane display screen of the terminal device, and the second infrared path is an infrared path that starts from the lamp head area of the infrared lamp, passes along the skirt of the lampshade, and faces the display screen.

The infrared emission hole is located on the side of the terminal device whose normal direction is the first direction, so that the infrared light transmitted along the first infrared path is transmitted to the outside of the terminal device through the infrared emission hole. The infrared light transmitted along the second infrared path is transmitted to the outside of the terminal device through the ink area.

In an embodiment of this application, the terminal device has an infrared emission hole, and infrared light emitted by the infrared emission hole is used for proximity light detection or infrared remote control. Therefore, the same appearance hole is shared for infrared remote control and proximity light detection, which can simplify hardware design to reduce costs. In addition, there are two infrared paths inside the terminal device. One infrared path is provided towards the side of the terminal device whose normal direction is the first direction, and the other infrared path is provided towards the screen direction of the terminal device. Simultaneous transmission of infrared light by the two infrared paths helps to increase the success rate of proximity light detection or infrared remote control.

With reference to the first aspect, in some implementations of the first aspect, the terminal device further includes: a proximity light receiver, located under the display screen. The proximity light receiver is configured 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 according to the proximity detection value, where the proximity detection value is used to represent a proximity state of the terminal device, and the proximity state includes being close and being far away.

In an embodiment of this application, the proximity light receiver is located under the display screen, and an emission area is located on a sidewall the first direction that is parallel to the display screen of the terminal device, which helps to reduce natural crosstalk between transmission and reception of infrared light.

With reference to the first aspect, in some implementations of the first aspect, the second infrared path is perpendicular to the plane of the screen of the terminal device.

In an embodiment of this application, the two infrared paths of different directions (or angles) help to perform the function of proximity light detection or infrared remote control and improve detection reliability of all scenarios.

With reference to the first aspect, in some implementations of the first aspect, the infrared controller includes an infrared remote control emission circuit and a proximity light emission circuit, the infrared remote control emission circuit and the proximity light emission circuit are connected in parallel at a cathode of the infrared lamp, the infrared remote control emission circuit and the proximity light emission circuit are mutually exclusive, and the infrared light emitted by the infrared lamp is a first infrared carrier signal or a second infrared carrier signal. The infrared remote control emission circuit is configured to emit the first infrared carrier signal, and the first infrared carrier signal is used to perform infrared remote control. The proximity light emission circuit is configured to emit the second infrared carrier signal, and the second infrared carrier signal is used to perform proximity light detection.

In an embodiment of this application, when the function of infrared remote control needs to be performed, the infrared remote control emission circuit may transmit the first infrared carrier signal. The first infrared carrier signal is a carrier signal of an infrared signal, and may perform the function of infrared remote control. In this case, the proximity light emission circuit is disabled. When the function of proximity light detection needs to be performed, the proximity light emission circuit may transmit the second infrared carrier signal. The second infrared carrier signal is a carrier signal of proximity light, and may perform the function of proximity light detection. In this case, the infrared remote control emission circuit is disabled. In this way, infrared remote control and proximity light detection may be mutually exclusive in scenarios and coexist in functions.

With reference to 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 on the periphery of the terminal device, the infrared light transmitted through the second infrared path is enhanced, and when the infrared light transmitted through the second infrared path is blocked by an obstacle on the periphery of the terminal device, the infrared light transmitted through the first infrared path is enhanced.

In a possible implementation of this application, an obstacle on the periphery of the terminal device may approach the terminal device at an inappropriate angle, so that the infrared light transmitted through the first infrared path is blocked, and proximity light detection or infrared remote control cannot be performed. However, a part of the blocked infrared light may be reflected by the obstacle, return to the inside of the terminal device through the lampshade, and then may be transmitted along the second infrared path, which enhances infrared energy of the second infrared path. That is, a part of infrared light lost by the first infrared path may be compensated by the second infrared path, which can improve reliability of proximity light detection or infrared remote control.

With reference to the first aspect, in some implementations of the first aspect, the lampshade has a refraction surface configured to adjust an emission angle of the infrared light emitted by the infrared lamp, so that infrared light of a first ratio is emitted perpendicular to the screen direction of the terminal device, and infrared light of a second ratio is emitted parallel to the screen direction of the terminal device.

In an embodiment of this application, since required directions (or angles) of infrared remote control and proximity light detection are different, to meet both functional requirements of infrared remote control and proximity light detection, the structure of the lampshade may be adjusted, so that the emission angle of infrared light emitted by the infrared lamp can be adjusted.

With reference to the first aspect, in some implementations of the first aspect, the terminal device further includes: a shell and a middle frame. The shell is located under the display screen, and the middle frame is located between the display screen and the shell. The lampshade is embedded in the shell and the middle frame.

With reference to the first aspect, in some implementations of the first aspect, a gap area exists between the middle frame and a sidewall of the display screen, and the second infrared path is located in the gap area. The gap area is provided so that infrared light is transmitted through the second infrared path.

In an embodiment of this application, due to the existence of the gap area and the large emission angle of the infrared lamp, there is infrared light leaking into the inner cavity of the lampshade. Therefore, the leaked infrared light may be transmitted through the second infrared path formed in the gap area.

With reference to the first aspect, in some implementations of the first aspect, the ink has an infrared transmittance of <NUM>.

In an embodiment of this application, printing ink with an infrared transmittance of <NUM> on the cover glass helps to transmit, to the outside of the terminal device through the cover glass, infrared light transmitted through the second infrared path, to perform proximity light detection or infrared remote control.

According to a second aspect, an infrared light transmission method is provided, applied to a terminal device including an infrared lamp, a lampshade, an infrared emission hole, an infrared controller, a cover glass, and a display screen. Ink is deployed on a lower side of the cover glass and in a projection area of the skirt of the lampshade on the cover glass, to form an ink area, the infrared controller is connected to the infrared lamp, and the infrared emission hole is located on a side of the terminal device whose normal direction is a first direction that is parallel to the display screen. The method includes: controlling, by the infrared controller, the infrared lamp to emit infrared light, so that the infrared light is transmitted through a first infrared path and a second infrared path, where the infrared light is used for proximity light detection or infrared remote control, the first infrared path is an infrared path that starts from a lamp head area of the infrared lamp, passes along an inner cavity of the lampshade in the first direction that is parallel to the plane display screen of the terminal device, and the second infrared path is an infrared path that starts from the lamp head area of the infrared lamp, passes along the skirt of the lampshade, and faces the display screen; transmitting, through the infrared emission hole to the outside of the terminal device, the infrared light transmitted along the first infrared path; and transmitting, through the ink area to the outside of the terminal device, the infrared light transmitted along the second infrared path.

With reference to the second aspect, in a possible implementation of the second aspect, the terminal device further includes a proximity light receiver, located under the display screen, and the method further includes: receiving, by the proximity light receiver, infrared light, 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 according to the proximity detection value, where the proximity detection value is used to represent a proximity state of the terminal device, and the proximity state includes being close and being far away.

With reference to the second aspect, in a possible implementation of the second aspect the second infrared path is perpendicular to the plane of the screen of the terminal device.

With reference to the second aspect, in a possible implementation of the second aspect, the infrared controller includes an infrared remote control emission circuit and a proximity light emission circuit, the infrared remote control emission circuit and the proximity light emission circuit are connected in parallel at a cathode of the infrared lamp, the infrared remote control emission circuit and the proximity light emission circuit are mutually exclusive, the infrared light emitted by the infrared lamp is a first infrared carrier signal or a second infrared carrier signal, and the method further includes: emitting, by the infrared remote control emission circuit, the first infrared carrier signal, where the first infrared carrier signal is used to perform infrared remote control; or emitting, by the proximity light emission circuit, the second infrared carrier signal, where the second infrared carrier signal is used to perform proximity light detection.

With reference to the second aspect, in a possible implementation of the second aspect, when the infrared light transmitted through the first infrared path is blocked by an obstacle on the periphery of the terminal device, the infrared light transmitted through the second infrared path is enhanced, and when the infrared light transmitted through the second infrared path is blocked by an obstacle on the periphery of the terminal device, the infrared light transmitted through the first infrared path is enhanced.

With reference to the second aspect, in a possible implementation of the second aspect, the lampshade has a refraction surface. The controlling, by the infrared controller, the infrared lamp to emit infrared light, so that the infrared light is transmitted through a first infrared path and a second infrared path includes: adjusting, by the refraction surface of the lampshade, an emission angle of the infrared light emitted by the infrared lamp, so that infrared light of a first ratio is emitted perpendicular to the screen direction of the terminal device, and infrared light of a second ratio is emitted parallel to the screen direction of the terminal device.

With reference to the second aspect, in a possible implementation of the second aspect, the ink has an infrared transmittance of <NUM>.

In a possible implementation of the infrared light transmission method provided in this application, infrared light may be transmitted through two infrared paths in different directions. After the infrared light transmitted through one path is blocked by the obstacle, the infrared light may continue to be transmitted through the other infrared path. This increases the emission angle of proximity light detection and infrared remote control, and helps to increase the success rate of proximity light detection and infrared remote control.

In the embodiments of this application, words such as "first" and "second" are used to distinguish same or similar items with a basically same function and role. For example, a first path and a second path are used to distinguish between different infrared paths, and are not intended to limit a sequence thereof. A person skilled in the art may understand that the words "first" and "second" do not limit a number and an execution sequence thereof, and the words "first" and "second" do not necessarily limit difference.

It should be noted that, in this application, the word "exemplary" or "for example" is used to represent giving an example, an illustration, or a description Any embodiment or design scheme described as an "exemplary" or "for example" in this application should not be explained as being more preferred or having more advantages than another embodiment or design scheme. Exactly, use of the word "exemplary" or "for example" is intended to present a related concept in a specific manner.

It should be further noted that, in this application, the word "top" refers to a side of a terminal device whose geometric plane is perpendicular to the plane of a display screen of said terminal device. Furthermore, a ray formed in a direction facing the top would be parallel to the plane of the display screen.

The embodiments of this application may be applied to scenarios in which a screen-to-body ratio is large and there is insufficient space on the screen to perform a proximity light function. In addition, the screen in this embodiment of this application has a transmittance. Exemplarily, a screen with a transmittance of more than <NUM>% at a light wavelength of <NUM> may be defined as a screen with a transmittance.

With the rapid development of terminal devices, full screens have become the trend of terminal devices. Therefore, thin and perspective screens such as OLED displays are increasingly widely used, and the demand of placing a proximity light sensor directly under a screen to perform a function of proximity light detection also increases.

In an OLED under-screen proximity light solution, to reduce crosstalk between an emission area and a reception area, the emission area and the reception area may be spatially separated, so that infrared light used for infrared remote control is emitted through the top of a terminal device and infrared light used for proximity light detection is emitted through a gap of the terminal device, and infrared light reflected back is received by a proximity light receiver under the screen to detect a proximity state of an obstacle.

<FIG> is a schematic diagram of an internal structure of a terminal device <NUM> based on an OLED under-screen proximity light solution. As shown in <FIG>, the terminal device <NUM> includes a cover glass (cover glass, CG) <NUM>, a display screen <NUM>, a small board <NUM>, a proximity light receiver <NUM>, at least one sealing, an isolating light part <NUM>, a main board <NUM>, a middle frame <NUM>, a terminal device shell <NUM>, an infrared emission hole <NUM>, an adhesive <NUM>, and an infrared emission component <NUM>.

The proximity light receiver <NUM> is located on the small board <NUM> and under the display screen <NUM>, and the at least one sealing and the isolating light part <NUM> are configured to isolate ambient light that leaks from a screen gap of the terminal device <NUM>, to prevent interference with the proximity light receiver <NUM>. The small board <NUM> may be connected to the main board <NUM> through an elastic sheet, or the small board <NUM> may be welded on the main board <NUM>. The infrared emission component <NUM> is connected to the main board <NUM>. The adhesive <NUM> is configured to connect the CG <NUM> to the terminal device shell <NUM>. The terminal device <NUM> may control the infrared emission component <NUM> to emit infrared light to the outside of the terminal device <NUM> through the infrared emission hole <NUM>, to perform the function of infrared remote control.

There is a gap between the terminal device shell <NUM> and the screen of the terminal device. The infrared light emitted by the infrared emission component may be emitted to the outside of the terminal device through the gap and received by the proximity light receiver <NUM> under the screen, to perform the function of proximity light detection.

Exemplarily, the proximity light receiver <NUM> is configured to receive infrared light and convert the infrared light into a proximity detection value through an analog-to-digital converter (analog-to digital converter, ADC). The proximity detection value may be referred to as a P-β value. The P-β value may be used to indicate a proximity state. A smaller P-β value indicates that an obstacle (for example, a face) is far away from the screen of the terminal device, that is, indicates a "far away" state. A larger P-β value indicates that an obstacle is close to the screen of the terminal device, that is, indicates a "close" state. The terminal device may control the screen to turn on or off according to the P-β value.

It should be understood that the small board <NUM> and the main board <NUM> may not be connected through an elastic sheet <NUM>, that is, the small board may be directly welded on the main board <NUM>, which is not limited in the embodiments of this application.

It should be understood that the middle frame <NUM> and the terminal device shell <NUM> of the terminal device <NUM> may be combined together by plastic, that is, the terminal device shell <NUM> and the middle frame <NUM> may be integrated, which is not limited in the embodiments of this application.

The following analyzes problems in implementing the function of proximity light detection by the terminal device <NUM>.

In terms of hardware design, due to the limited size of the terminal device <NUM> and numerous and complex internal components, if two appearance holes are provided on the top of the terminal device <NUM>, where one appearance hole is configured to transmit infrared light for infrared remote control, and the other appearance hole is configured to transmit infrared light for proximity light detection, the aesthetics of the terminal device is affected, the difficulty of design is increased, and hardware costs are increased.

In terms of proximity light detection performance, the terminal device <NUM> has a directional defect. This is because the terminal device <NUM> only has a light exit path along the appearance hole on the top of the terminal device <NUM>, and light is received by the proximity light receiver <NUM> placed under the display screen <NUM> (hereinafter referred to as under the screen for short). Therefore, when the light exit path on the top of the terminal device <NUM> is blocked, the proximity light receiver <NUM> under the screen cannot receive the proximity light normally. As a result, a distance between the obstacle and the terminal device <NUM> cannot be detected normally. This may lead to detection anomalies and the proximity state is detected as the far away state.

In view of the above problems in hardware design and performance of the terminal device, an embodiment of this application provides a terminal device. A proximity light emission component and an infrared remote control emission component of the terminal device are in a shared mode. That is, the proximity light emission component and the infrared remote control emission component may share a same infrared lamp, lampshade, and appearance hole. The function of infrared remote control and the function of proximity light detection may be performed as required through one appearance hole, which can simplify hardware design and help to reduce costs. In addition, a top path parallel to a screen of the terminal device and a forward path perpendicular to the screen of the terminal device may be constructed based on an internal structure of the lampshade, and infrared light is transmitted through the top path and the forward path. This helps to increase the success rate of proximity light detection or infrared remote control and improve the user experience.

In this embodiment of this application, infrared remote control and proximity light detection may share the same emission component and appearance hole basically because the requirement of the function of infrared remote control is at a specific time and does not exist continuously for a long time. In addition, since both infrared remote control and proximity light detection use an infrared band around <NUM>, there is natural coupling between infrared remote control and proximity light detection. If infrared remote control and proximity light detection work at the same time, crosstalk occurs. This is why infrared remote control and proximity light detection cannot coexist in scenarios. Hereinafter, emitted light waves for infrared remote control and proximity light detection are collectively referred to as infrared light, and an emission component shared for infrared remote control and proximity light detection is referred to as an infrared light emission component.

It should be understood that infrared remote control and proximity light detection of the terminal device in the embodiments of this application cannot coexist in scenarios, but can coexist in functions through a cathode control circuit topology.

<FIG> is a schematic diagram of an infrared emission component <NUM> according to an embodiment of this application. As can be seen from <FIG>, the infrared emission component <NUM> includes an infrared lamp <NUM> and a lampshade <NUM>, and the lampshade <NUM> includes a lampshade refraction surface <NUM>. a is a schematic diagram of a possible infrared lamp, and b and c are schematic diagrams of two possible lampshades. The lampshades shown in b and c have lampshade refraction surfaces in different shapes, and different refraction surfaces may bring different infrared light refraction effects.

Exemplarily, the infrared lamp is a light-emitting diode (light-emitting diode, LED) lamp.

It should be understood that the infrared lamp <NUM> and the lampshade <NUM> may also have other different shapes and structures. For example, a width and a height of the main body of the lampshade <NUM> may be adjusted, which is not limited in this embodiment of this application.

Exemplarily, the lampshade <NUM> is made of an injection molded material having an infrared transmittance of <NUM>. Since the lampshade <NUM> has a high transmittance, the actual effect of angle conversion is improved, and a signal-to-noise ratio (signal-to-noise ratio, SNR) of the entire proximity light detection system is also significantly increased.

It should be understood that the infrared transmittance of <NUM> means that the ink area has a transmittance of more than <NUM>% for infrared light of <NUM>.

It should be understood that, in this embodiment of this application, the infrared emission component <NUM> in <FIG> may be shared for infrared remote control and proximity light detection, thereby realizing "one lamp for two purposes", that is, the infrared lamp <NUM> may perform both the function of infrared remote control and the function of proximity light detection.

In a scenario in which a user holds and uses a terminal device, a screen direction of the terminal device usually faces the face, and the user expects that the function of infrared remote control may be performed without adjusting an angle of the terminal device, that is, infrared remote control requires infrared light facing the top of the mobile phone, and proximity light detection usually requires infrared light facing the screen direction of the mobile phone or infrared light parallel to the screen direction of the mobile phone. Therefore, directions (or angles) required for infrared remote control and proximity detection are different.

To improve the success rate of proximity light detection and infrared remote control and take into account both the function of infrared remote control and the function of proximity light detection, the structure of the lampshade <NUM> may be adjusted to distribute infrared energy emitted by the infrared lamp <NUM>.

Exemplarily, the lampshade refraction surface <NUM> may be designed in the middle of the skirt of the lampshade <NUM> to separate the infrared energy emitted by the infrared lamp <NUM>, so that more infrared energy is directed towards (that is, perpendicular to) the direction screen of the mobile phone or parallel to the screen direction of the mobile phone, to meet the needs of proximity light detection. The rest of the skirt of the lampshade <NUM> is flat and has no slope, which can satisfy a conventional infrared remote control scenario. A part of the lampshade is designed for refraction and a part of the lampshade is designed to be flat to distribute infrared energy, so that application requirements of infrared remote control and proximity detection at different angles may be taken into account, and infrared remote control and proximity detection may coexist in functions.

Exemplarily, <NUM>% of the infrared energy emitted by the infrared lamp <NUM> may be used to perform the function of proximity light detection, and the other <NUM>% of the infrared energy may be used to perform the function of infrared remote control. This is because the infrared remote control scenario may be configured with a higher driving current than the proximity light detection scenario. The function of infrared remote control may be performed by increasing the driving current. However, an emission current of proximity light has a functional bottleneck and cannot be configured as a higher driving current. Therefore, the lampshade <NUM> is designed to distribute more infrared energy to perform the function of proximity light detection. It should be understood that there may also be other distribution ratios of infrared energy, which is not limited in this embodiment of this application.

It should be understood that a width of the refraction region of the lampshade refraction surface <NUM> may also be adjusted to achieve different ratios of infrared energy distribution, which is not limited in this embodiment of this application.

Shapes of the infrared lamp and the lampshade shown in <FIG> are only examples, and other shapes are also possible, which is not limited in this embodiment of this application.

In the following, the terminal device provided in this embodiment is described in detail with reference to <FIG> by using an example in which the infrared light emission component is located on the top of the terminal device and the proximity light receiver is located under the screen.

<FIG> is a schematic diagram of an internal structure of a terminal device <NUM> according to an embodiment of this application. <FIG> is a cross-sectional view of the internal structure of the terminal device <NUM> in which a cover glass CG <NUM> is placed upwards horizontally. As shown in <FIG>, the terminal device <NUM> may include: the CG <NUM>, an optically clear adhesive (optically clear adhesive, OCA) <NUM>, a polarizer <NUM>, a display screen <NUM>, a support layer (BF) <NUM>, a network adhesive <NUM>, a foam <NUM>, a polyimide (polyimide, PI) layer <NUM>, and a copper sheet <NUM>, which form the screen of the terminal device <NUM>. The terminal device <NUM> further includes: a terminal device shell <NUM>, a middle frame <NUM>, a small board <NUM>, a main board <NUM>, a proximity light receiver <NUM>, an isolation foam <NUM>, a lampshade <NUM>, an infrared lamp <NUM>, an infrared controller <NUM>, an infrared emission hole <NUM>, a gap area <NUM>, ink <NUM>, and an adhesive <NUM>.

It should be understood that the infrared lamp <NUM> is similar to the infrared lamp <NUM> in <FIG>, the lampshade <NUM> may also have the structure as shown in b in <FIG> or c in <FIG>, and the structure of the lampshade as shown in b in <FIG> is described as an example below.

The cover glass CG <NUM> is located on the top of the terminal device <NUM> placed horizontally, and serves to protect the terminal device <NUM>. The OCA <NUM> under the cover glass CG is a special adhesive for gluing a transparent optical element (for example, a lens), is colorless and transparent, has a light transmittance above <NUM>% and good bonding strength, may be cured at a room temperature or a medium temperature, and has the feature of small curing shrinkage. The display screen <NUM> below the OCA <NUM> is used to display images. The support layer (BF) <NUM> has light transmittance.

The network adhesive <NUM>, the support layer <NUM>, the display screen <NUM>, the polarizer <NUM>, the OCA <NUM>, and the CG <NUM> have light transmittance. There are openings on the foam <NUM>, the PI layer <NUM>, and the copper sheet <NUM>, and the openings may form a light transmitting area (as shown by a dashed part of the foam <NUM>, the PI layer <NUM>, and the copper sheet <NUM> in the figure). The light transmitting area may allow infrared light to pass through, and the remaining part other than the light transmitting area has light shielding properties.

The proximity light sensor <NUM> is located under the screen and above the small board <NUM>, and in the opening of the middle frame <NUM>, and may receive, through the light transmitting area, infrared light returned from the outside of the terminal device <NUM>.

The infrared controller <NUM> may control the infrared lamp <NUM> to emit infrared light, to perform the function of infrared remote control or the function of proximity light detection, and the infrared light may be emitted through the infrared emission hole <NUM> on the top of the terminal device. The function of the infrared controller <NUM> may be implemented by hardware, or by executing corresponding software by hardware, which is not limited in this embodiment of this application.

In the terminal device <NUM>, the skirt of the lampshade <NUM> has a projection area on a plane of the CG <NUM>, infrared ray (infrared ray, IR) ink <NUM> may be printed on this area to form an ink area, and the IR ink may provide an infrared light transmittance of <NUM>.

The isolation foam <NUM> serves to isolate infrared light crosstalk between emission and reception. Therefore, a position for placing the isolation foam <NUM> only needs to serve the purpose of isolating crosstalk. A specific position for placing the isolation foam <NUM> is not limited in this embodiment of this application.

In this embodiment of this application, there may be a part of leaked infrared light in the gap area <NUM>, and this part of infrared light may cause crosstalk to the infrared light received by the proximity light receiver <NUM>. Based on this, the isolation foam <NUM> may be placed obliquely between the emission area and the reception area, to reduce the impact of the leaked infrared light on the proximity light receiver <NUM> to improve the accuracy of a proximity light detection result.

Since the infrared emission components (that is, the infrared lamp <NUM> and the lampshade <NUM>) are located on the top of the terminal device <NUM> and the proximity light receiver <NUM> is located under the display screen <NUM>, proximity light emission and reception may be located on different small boards, to reduce crosstalk between emission and reception.

There is the gap area <NUM> between the lampshade <NUM> and the CG <NUM>. Due to a large emission angle of an LED light source, in addition to the infrared light emitted towards the top of the terminal device, there may be a part of leaked infrared light in the gap area <NUM>. Therefore, the leaked infrared light may be emitted through the ink area on the CG <NUM> and received by the proximity light receiver <NUM> under the screen, to perform the function of proximity light detection. Since the proximity light emission component is not under the screen, this helps to solve the problem of screen flare caused when the emission component is under the screen. A specific implementation process of proximity light detection is described below.

Exemplarily, an opening of the gap area <NUM> is within <NUM>, and a distance between the lampshade <NUM> and the CG <NUM> is about <NUM>.

It should be understood that the proximity light sensor in this embodiment of this application includes a proximity light emission component and a proximity light receiver. The proximity light emission component and the proximity light receiver may be disposed independently and are connected by hardware, which is not limited in this embodiment of this application.

<FIG> is a schematic diagram of an internal structure of another terminal device <NUM> according to an embodiment of this application. <FIG> is a schematic diagram of the internal structure of the terminal device <NUM> in which the CG <NUM> is placed vertically. As shown in <FIG>, the terminal device <NUM> includes the CG <NUM>, an OCA <NUM>, a polarizer <NUM>, a display screen <NUM>, a foam <NUM>, a proximity light receiver <NUM>, and ink <NUM> in an order from back to front.

It should be understood that the schematic diagram of the internal structure of the terminal device <NUM> shown in <FIG> also includes: a support layer <NUM>, a network adhesive <NUM>, a PI layer <NUM>, a copper sheet <NUM>, a terminal device shell <NUM>, and a middle frame <NUM>, which are not shown in <FIG>. Other structures are also similar to those of the terminal device <NUM>, and are not repeated herein again.

As can be seen from <FIG> and <FIG>, the ink area formed by the ink <NUM> on the CG <NUM> exactly faces the projection area of the skirt of the lampshade <NUM>. Since the ink area has an infrared transmittance of <NUM> and allows infrared light to pass through, a part of leaked infrared light of the infrared lamp <NUM> may be emitted through the ink area and received by the proximity light receiver <NUM> under the screen. Compared with the proximity light solution in which only a top light transmitting area exists, in this embodiment of this application, a light transmitting area perpendicular to the screen direction is added. In this way, when the infrared light emitted from the top light transmitting area parallel to the screen direction cannot normally achieve proximity light detection or infrared remote control, the light transmitting area perpendicular to the screen direction may be used as compensation to achieve proximity light detection or infrared remote control, to help to increase the success rate of proximity light detection or infrared remote control. A specific light path compensation process is described with reference to the description of <FIG> and <FIG> below.

<FIG> is a schematic diagram of an internal structure of still another terminal device <NUM> according to an embodiment of this application. <FIG> is a schematic diagram of an internal structure of the terminal device <NUM> in which the CG <NUM> is placed vertically. As shown in <FIG>, the terminal device <NUM> includes: a CG <NUM>, a display screen <NUM>, a terminal device shell <NUM>, a middle frame <NUM>, a proximity light receiver <NUM>, a lampshade <NUM>, an infrared lamp <NUM>, an infrared controller <NUM>, an infrared emission hole <NUM>, a gap area <NUM>, and ink <NUM>.

It should be understood that the schematic diagram of the internal structure of the terminal device <NUM> shown in <FIG> also includes: an OCA <NUM>, a polarizer <NUM>, a support layer <NUM>, a network adhesive <NUM>, foam <NUM>, a PI layer <NUM>, a copper sheet <NUM>, and isolation foam <NUM>, which are not shown in <FIG>.

When the infrared controller <NUM> implements the coexistence of the function of infrared remote control and the function of proximity light detection by a hardware circuit, a circuit form of the infrared controller <NUM> may be shown in <FIG>.

<FIG> is a topology diagram of an infrared lamp cathode control circuit <NUM> according to an embodiment of this application. The circuit <NUM> includes a power source <NUM>, an infrared lamp <NUM>, an infrared remote control emission circuit <NUM>, and a proximity light emission circuit <NUM>. The infrared remote control emission circuit <NUM> and the proximity light emission circuit <NUM> are connected in parallel at a cathode of the infrared lamp <NUM>, to control the cathode of the infrared lamp <NUM>.

Exemplarily, the infrared remote control emission circuit <NUM> and the proximity light emission circuit <NUM> may be circuits capable of supporting carrier emission, and the circuits may be equivalent to controlled current source generators, so that current consistency is better. Correspondingly, the infrared remote control emission circuit <NUM> may send a pulse-coded waveform to the infrared lamp <NUM> in a form of a pulsating current source, to control the infrared lamp <NUM> to turn on and off periodically. The proximity light emission circuit <NUM> may send encoded energy to the infrared lamp <NUM> to control the infrared lamp <NUM> to perform the function of proximity light detection.

For example, the infrared remote control emission circuit <NUM> and the proximity light emission circuit <NUM> are controlled current source generators (hereinafter referred to as current sources). Since the two current sources are connected in parallel at the cathode of the infrared lamp <NUM>, in a non-working state, a current source model is in a low-resistance state, and there is almost no scenario in which the function of infrared remote control and the function of proximity light detection coexist, that is, A does not work and B works, B does not work and A works, or neither works. Therefore, this can support a working mode in which infrared remote control and proximity light detection are mutually exclusive.

Exemplarily, in an infrared remote control working scenario, the proximity light emission circuit <NUM> may be disabled, so that the proximity light emission circuit <NUM> cannot control the infrared lamp <NUM>, and the infrared remote control emission circuit <NUM> controls the infrared lamp <NUM> to emit a carrier signal of an infrared signal, to perform the function of infrared remote control.

Exemplarily, in a proximity light detection scenario, the infrared remote control emission circuit <NUM> may be disabled, so that the infrared remote control emission circuit <NUM> cannot control the infrared lamp <NUM>, and the proximity light emission circuit <NUM> controls the infrared lamp <NUM> to emit a carrier signal of proximity light, to detect a proximity state.

<FIG> is a topology diagram of another infrared lamp cathode control circuit <NUM> according to an embodiment of this application. The circuit <NUM> includes a power source <NUM>, an infrared lamp <NUM>, an infrared remote control emission circuit <NUM>, and a proximity light emission circuit <NUM>. The infrared remote control emission circuit <NUM> and the proximity light emission circuit <NUM> are connected in parallel at a cathode of the infrared lamp <NUM>, to control the cathode of the infrared lamp <NUM>.

Exemplarily, the infrared remote control emission circuit <NUM> may be a pulsating switch, and control the flow of the infrared lamp <NUM> in a form of a pulsating switch, that is, the emitting part of the proximity light sensor may directly control the cathode of the infrared lamp <NUM>, and is connected in parallel to the infrared remote control circuit. Exemplarily, the magnitude of the infrared light emission current may be <NUM> mA.

It should be understood that a difference between the circuit <NUM> and the circuit <NUM> lies in different forms of infrared remote control circuits. The infrared remote control emission circuit <NUM> of the circuit <NUM> is a controlled pulsating current source, and the infrared remote control emission circuit <NUM> of the circuit <NUM> is a pulsating switch. In addition, the proximity light emission circuit <NUM> of the circuit <NUM> may also be a pulsating switch, which is not limited in this embodiment of this application.

With reference to <FIG>, the foregoing describes the terminal device in which infrared remote control and proximity light detection share a same emission component. In the terminal device, the gap area <NUM> is provided between the lampshade <NUM> and the CG <NUM>. The gap area <NUM> may have a part of infrared light that leaks from the infrared lamp <NUM> along the edge of the lampshade <NUM>. In actual scenarios of infrared remote control and proximity light detection, an emission angle may be expanded by using this part of infrared light.

<FIG> is a schematic diagram of an internal structure of yet another terminal device <NUM> according to an embodiment of this application. Compared with the terminal device <NUM>, the terminal device <NUM> shows an infrared light path inside the terminal device when the function of proximity light detection is actually triggered. As can be seen from <FIG>, the infrared light emitted by the infrared lamp <NUM> has a first infrared path (hereinafter referred to as an infrared top path) facing the top of the terminal device <NUM>. In addition, the gap area <NUM> (not shown in <FIG>) also has a second infrared path (hereinafter referred to as an infrared forward path) facing the screen direction of the terminal device <NUM>.

Optionally, the edge of the screen of the terminal device <NUM> has a light transmitting area, and the light transmitting area may also be used to transmit infrared light to the outside of the terminal device <NUM>, to implement proximity light detection or infrared remote control.

It should be understood that the infrared top path is an infrared path that starts from the lamp head area of the infrared lamp <NUM>, passes along the inner cavity of the lampshade <NUM>, and faces the top of the terminal device <NUM>, and the infrared top path is parallel to the screen direction of the terminal device <NUM>. The infrared forward path is an infrared path that starts from the lamp head area of the infrared lamp <NUM>, passes along the skirt of the lampshade <NUM>, and faces the display screen <NUM>, and the infrared forward path is perpendicular to the screen direction of the terminal device <NUM>. The infrared light emitted at two different angles may be received by the proximity light receiver <NUM> under the screen, so as to detect a proximity state.

In an ideal scenario, the infrared light emitted by the two infrared paths may be normally received by the proximity light receiver <NUM> under the screen. However, when there is an obstacle around the terminal device <NUM> and consequently the proximity light receiver <NUM> cannot normally receive the proximity light, the proximity state may be incorrectly recognized.

<FIG> is a schematic diagram of an internal structure of yet another terminal device <NUM> according to an embodiment of this application. Compared with the terminal device <NUM>, the terminal device <NUM> has an additional obstacle <NUM>. As can be seen from <FIG>, when there is an obstacle <NUM> on the top of the terminal device <NUM> as shown in the figure, the infrared light emitted by the infrared lamp <NUM> is emitted through the infrared top path, and is blocked by the obstacle <NUM> and cannot be received by the proximity light receiver <NUM> under the screen, thereby interrupting the loopback from emission to reception.

However, in a scenario of proximity light detection, since the gap area <NUM> of the terminal device <NUM> also has an infrared forward path, the infrared light emitted by the infrared lamp <NUM> may also be emitted from the infrared forward path along the edge of the lampshade <NUM>, and is received by the proximity light receiver <NUM> under the screen. In addition, although the infrared light emitted through the infrared top path is blocked by the obstacle <NUM> and the function of proximity light detection cannot be performed, this part of infrared light blocked by the obstacle <NUM> is reflected back by the lampshade <NUM>, and the infrared light that is reflected back may be emitted from the infrared forward path along the edge of the lampshade <NUM>. This can enhance infrared energy of the infrared forward path, and is equivalent to compensating for energy loss of the infrared top path through the infrared forward path. The proximity light receiver <NUM> under the screen may also obtain the infrared energy required for proximity light detection. This helps to increase the success rate of proximity light detection.

It should be understood that after the infrared light passing through the infrared forward path is blocked by an obstacle, the infrared energy of the infrared top path can be similarly enhanced, which is not repeated herein.

When there is no obstacle around the terminal device <NUM> as shown in <FIG>, because the infrared light emitted by the infrared lamp <NUM> has crosstalk inside the lampshade <NUM>, a part of infrared light leaks to the proximity light receiver <NUM> through the gap area <NUM>. This is unavoidable and this part of infrared energy is defined as A.

In a possible scenario, when the user uses the terminal device <NUM> to answer or make a call, to prevent the face from accidentally touching the screen when the user answers or makes the call, the terminal device <NUM> usually may detect a proximity state of the face with the function of proximity light detection, and control, according to the detected proximity state, whether the screen is in an on or off state. For example, if detecting that a face is in a "close" state, the terminal device <NUM> may control the screen to be in an off state to prevent the face from accidentally touching the screen and affecting the call.

However, in a scenario in which the terminal device uses the function of proximity light detection, due to a problem in a posture of holding the terminal device <NUM> by the user, the head may block the infrared light emitted through the infrared top path, that is, the obstacle <NUM> is the head of the user. In a scenario in which the infrared light emitted by the infrared lamp <NUM> is blocked by the obstacle <NUM>, a part of infrared light is reflected back to the lampshade <NUM> by the obstacle <NUM>, and the infrared light that leaks to the proximity light receiver <NUM> through the gap area <NUM> also increases. This part of infrared energy is defined as B. It may be detected, based on a result value of B-A, whether there is an obstacle on the top of the terminal device. This may compensate for incorrect detection of the proximity state caused by blocking of the obstacle <NUM> as shown in <FIG>, and help to improve correctness of proximity light detection, so that the function may be performed and the detection reliability of all scenarios is ensured.

Optionally, infrared energy may be transmitted and compensated through the gap area <NUM> by increasing infrared light emission intensity, so that infrared energy for proximity light detection may also be obtained, thereby improving the success rate of proximity light detection.

In a scenario in which a user uses infrared remote control, the terminal device provided by this embodiment of this application may also expand the sensing angle of infrared remote control. Generally, when a user implements the function of infrared remote control on a handheld terminal device, an infrared emission hole of the terminal device needs to exactly face a receiving device, such as a TV set or an air conditioner, which limits the angle of infrared remote control. However, since the terminal device provided by this embodiment of this application has an infrared forward path perpendicular to the screen direction, when the screen of the terminal device obliquely faces the receiving device, the infrared light emitted through the infrared forward path may be used to perform the function of infrared remote control. In this way, when the screen obliquely faces the receiving device, there is also a remote control function, and the user does not need to place the infrared emission hole on the top of the terminal device to exactly face the receiving device, which helps to improve infrared remote control experience of the user.

In some scenarios, the infrared light emitted through the infrared top path may be blocked by an obstacle and cannot perform the function of infrared remote control. In this case, infrared light may be emitted through the infrared forward channel to perform the function of infrared remote control. Correspondingly, the infrared light emitted through the infrared forward path is blocked by an obstacle and cannot perform the function of infrared remote control, and the terminal device may also emit infrared light through the infrared top channel, to perform the function of infrared remote control.

It should be understood that, unlike the scenario of proximity light detection in which the infrared light is received by the proximity light receiver, the infrared light passing through the two paths in the scenario of infrared remote control is received by a receiving device (for example, an air conditioner or a TV set) outside the terminal device.

Optionally, in a scenario in which a function of infrared remote control learning is added, infrared remote control learning may be performed through the infrared forward path, which expands angles of infrared remote control learning.

<FIG> is a schematic diagram of an internal light path of a lampshade according to an embodiment of this application. In <FIG>, the structure of the lampshade <NUM> shown in b in <FIG> is used as an example for description. After the infrared lamp <NUM> emits infrared light, the infrared light is refracted by the lampshade refraction surface (not shown in <FIG>, refer to the lampshade refraction surface <NUM> shown in b in <FIG>) and may form refracted light as shown by a solid line and a dashed line in <FIG>, and the refracted light may finally be emitted through the skirt of the lampshade (not shown in <FIG>, refer to the skirt <NUM> shown in b in <FIG>). Exemplarily, based on the lampshade structure shown in <FIG>, <NUM>% of the infrared energy emitted by the infrared lamp <NUM> may be used to perform the function of proximity light detection, and the other <NUM>% of the infrared energy may be used to perform the function of infrared remote control. That is, <NUM>% of the infrared light may be transmitted through the infrared forward path, and <NUM>% of the infrared light may be transmitted through the infrared top path.

<FIG> is a schematic diagram of another internal light path of a lampshade according to an embodiment of this application. In <FIG>, the structure of the lampshade <NUM> shown in c in <FIG> is used as an example for description. After the infrared lamp <NUM> emits infrared light, the infrared light is refracted by the lampshade refraction surface (not shown in <FIG>, refer to the lampshade refraction surface <NUM> shown in c in <FIG>) and may form refracted light as shown by a solid line and a dashed line in <FIG>, and the refracted light may finally be emitted through the skirt of the lampshade (not shown in <FIG>, refer to the skirt <NUM> shown in c in <FIG>). Exemplarily, based on the lampshade structure shown in <FIG>, <NUM>% of the infrared energy emitted by the infrared lamp <NUM> may be used to perform the function of proximity light detection, and the other <NUM>% of the infrared energy may be used to perform the function of infrared remote control. That is, <NUM>% of the infrared light may be transmitted through the infrared forward path, and <NUM>% of the infrared light may be transmitted through the infrared top path.

It should be understood that the above infrared light distribution ratio is only an example, different lampshade structures may form different internal light paths, and refraction angles of infrared light are also different and infrared light distribution ratios are also different. The lampshade structure designed in this embodiment of this application aims to refract a part of infrared light through the lampshade refraction surface and emit the infrared light from the ink area on the screen through the skirt of the lampshade, so as to perform the function of proximity light detection or the function of infrared remote control through the infrared forward path and the infrared top path, that is, infrared light is transmitted on both infrared paths, which helps to improve the success rate of proximity light detection and infrared remote control.

An embodiment of this application further provides an infrared light transmission method. Infrared light may be transmitted through two infrared paths in different directions. After the infrared light transmitted through one path is blocked by the obstacle, the infrared light may continue to be transmitted through the other infrared path. This increases the emission angle of proximity light detection and infrared remote control, and helps to increase the success rate of proximity light detection and infrared remote control.

The infrared light transmission method is applied to a terminal device including an infrared lamp, a lampshade, an infrared emission hole, an infrared controller, a cover glass, and a display screen, where ink is deployed on a lower side of the cover glass and in a projection area of the skirt of the lampshade on the cover glass, to form an ink area, the infrared controller is connected to the infrared lamp, and the infrared emission hole is located on the top of the terminal device.

<FIG> is a schematic flowchart of an infrared light transmission method <NUM> according to an embodiment of this application. The method <NUM> includes the following steps:
S1201: 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, where the infrared light is used for proximity light detection or infrared remote control, the first infrared path is an infrared path that starts from a lamp head area of the infrared lamp, passes along an inner cavity of the lampshade, and faces the top of the terminal device, and the second infrared path is an infrared path that starts from the lamp head area of the infrared lamp, passes along the skirt of the lampshade, and faces the display screen.

S1202: Transmit, through the infrared emission hole to the outside of the terminal device, the infrared light transmitted along the first infrared path.

S1203: Transmit, through the ink area to the outside of the terminal device, the infrared light transmitted along the second infrared path.

Optionally, the terminal device further includes a proximity light receiver, located under the display screen, and the method <NUM> further includes: receiving, by the proximity light receiver, infrared light, 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 according to the proximity detection value, where the proximity detection value is used to represent a proximity state of the terminal device, and the proximity state includes being close and being far away.

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

Optionally, the infrared controller includes an infrared remote control emission circuit and a proximity light emission circuit, the infrared remote control emission circuit and the proximity light emission circuit are connected in parallel at a cathode of the infrared lamp, the infrared remote control emission circuit and the proximity light emission circuit are mutually exclusive, the infrared light emitted by the infrared lamp is a first infrared carrier signal or a second infrared carrier signal, and the method <NUM> further includes: emitting, by the infrared remote control emission circuit, the first infrared carrier signal, where the first infrared carrier signal is used to perform infrared remote control; or emitting, by the proximity light emission circuit, the second infrared carrier signal, where the second infrared carrier signal is used to perform proximity light detection.

Optionally, when the infrared light transmitted through the first infrared path is blocked by an obstacle on the periphery of the terminal device, the infrared light transmitted through the second infrared path is enhanced, and when the infrared light transmitted through the second infrared path is blocked by an obstacle on the periphery of the terminal device, the infrared light transmitted through the first infrared path is enhanced.

Optionally, the lampshade has a refraction surface. S1201 of controlling, by the infrared controller, the infrared lamp to emit infrared light includes: adjusting, by the refraction surface of the lampshade, an emission angle of the infrared light emitted by the infrared lamp, so that infrared light of a first ratio is emitted perpendicular to the screen direction of the terminal device, and infrared light of a second ratio is emitted parallel to the screen direction of the terminal device.

Optionally, the ink has an infrared transmittance of <NUM>.

In the embodiments of this application, the terminal device may be a handheld device or an in-vehicle device having a wireless connection function, and the terminal device may also be referred to as a terminal (terminal), a user equipments (user equipment, UE), a mobile station (mobile station, MS), or a mobile terminal (mobile terminal, MT). At present, examples of some terminals are as follows: a mobile phone (mobile phone), a tablet computer, a smart television, a notebook computer, a pad (pad), a palmtop computer, a mobile Internet device (mobile Internet device, MID), a virtual reality (virtual reality, VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical surgery (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device having a wireless communication function, a computing device, another processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future <NUM> network, a terminal device in a future evolved public land mobile network (public land mobile network, PLMN), and the like. A specific technology applied to the terminal device and a specific device form thereof are not limited in the embodiments of this application.

As an example rather than a limitation, in the embodiments of this application, the terminal device may also be a wearable device. A wearable device may also be referred to as a wearable intelligent device, and is a general term of wearable devices, such as glasses, gloves, watches, clothes, and shoes, that are developed by applying wearable technologies in intelligent designs of daily wear. A wearable device is a portable device that can be directly worn on a body or integrated into clothes or an accessory of a user. A wearable device is not only a hardware device, but also used to implement a powerful function through software support, data exchange, and cloud interaction. Generalized wearable intelligent devices include full-featured and large-size devices that can implement complete or partial functions without depending on smartphones, such as smart watches or smart glasses, and devices that focus on only one type of application and need to work with other devices such as smartphones, such as various smart bracelets or smart jewelry for monitoring physical signs.

In addition, in the embodiments of this application, the terminal device may also be a terminal device in an Internet of things (Internet of things, IoT) system. IoT is an important part in future development of information technologies, and is mainly technically characterized in that things are connected to networks through communication technologies, so as to achieve intelligent networks of human-machine interconnection and interconnection between things.

The terminal device in the embodiments of this application may alternatively be referred to as user equipment (user equipment, UE), a mobile station (mobile station, MS), a mobile terminal (mobile terminal, MT), an access terminal, a user unit, a user station, a mobile site, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus.

In the embodiments of this application, the terminal device or each network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (central processing unit, CPU), a memory management unit (memory management unit, MMU), and a memory (which is also referred to as a main memory). The operating system may be any one or more computer operating systems for implementing service processing through a process (process), for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as a browser, an address book, word processing software, and instant messaging software.

In the description of this application, it should be understood that orientation or position relationships indicated by the terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", and "outside" are based on orientation or position relationships shown in the accompanying drawings, and are used only for ease and brevity of illustration and description, rather than indicating or implying that the mentioned apparatus or component needs to have a particular orientation or needs to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as limiting of this application.

In the embodiments of this application, unless otherwise explicitly specified or defined, the terms such as "mount", "install", "connect", "connection", and "fixed" should be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; or the connection may be a mechanical connection or an electrical connection; or the connection may be a direct connection, an indirect connection through an intermediary, or internal communication between two components or mutual interaction relationship between two components. A person of ordinary skill in the art may understand specific meanings of the foregoing terms in this application according to a specific situation.

In the specification of the embodiments of this application, claims, and accompanying drawings, the terms "first", "second", and "third" are intended to distinguish between similar objects, but do not necessarily indicate a specific order or sequence. It should be understood that, data used in this way is interchangeable in a suitable case, so that the embodiments of this application described herein can be implemented, for example, in a sequence other than the sequences depicted or described herein. Moreover, the terms "include", "contain" and any other variants mean to cover the non-exclusive inclusion, for example, a process, method, system, product, or device that includes a list of steps or units is not necessarily limited to those expressly listed steps or units, but may include other steps or units not expressly listed or inherent to such a process, method, system, product, or device.

A person of ordinary skill in the art may notice that the exemplary units and algorithm steps described with reference to the embodiments disclosed in this specification can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether the functions are executed in a mode of hardware or software depends on particular applications and design constraint conditions of the technical solutions.

Claim 1:
A terminal device (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>), comprising:
an infrared lamp (<NUM>, <NUM>), a lampshade (<NUM>, <NUM>), an infrared emission hole (<NUM>, <NUM>), an infrared controller (<NUM>), a cover glass (<NUM>, <NUM>), and a display screen (<NUM>, <NUM>); wherein
the infrared lamp (<NUM>, <NUM>) is located below the cover glass (<NUM>, <NUM>), the lamp head of the infrared lamp (<NUM>, <NUM>) is located below the lampshade (<NUM>, <NUM>), and the display screen (<NUM>, <NUM>) is located below the cover glass (<NUM>, <NUM>);
ink (<NUM>) is deployed on a lower side of the cover glass (<NUM>, <NUM>) and in a projection area of the skirt (<NUM>) of the lampshade (<NUM>, <NUM>) on the cover glass (<NUM>, <NUM>), to form an ink area;
the infrared controller (<NUM>) is connected to the infrared lamp (<NUM>, <NUM>) and is configured to control the infrared lamp (<NUM>, <NUM>) to emit infrared light which is transmitted through a first infrared path and a second infrared path, wherein the infrared light is intended to be used for proximity light detection or infrared remote control, the first infrared path is an infrared path that starts from a lamp head area of the infrared lamp (<NUM>, <NUM>) and passes along an inner cavity of the lampshade (<NUM>, <NUM>) in a first direction parallel to the plane of the display screen (<NUM>, <NUM>) of the terminal device (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>), and the second infrared path is an infrared path that starts from the lamp head area of the infrared lamp (<NUM>, <NUM>), passes along the skirt (<NUM>) of the lampshade (<NUM>, <NUM>), and faces the display screen (<NUM>, <NUM>);
the infrared emission hole (<NUM>, <NUM>) is located on the side of the terminal device (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>) facing the first direction, so that the infrared light transmitted along the first infrared path is transmitted to the outside of the terminal device (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>) through the infrared emission hole (<NUM>, <NUM>); and
the infrared light transmitted along the second infrared path is transmitted to the outside of the terminal device (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>) through the ink area.