Integrated sensing device, mobile terminal and handset
By integrating infrared sensing and ambient light sensing functions into smart mobile terminals, and utilizing a filter layer group to allow only visible and infrared light to pass through, the issues of cost and area occupation are solved, and efficient automatic screen adjustment is achieved.
Patent Information
- Application Number
- CN202111323512.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-09
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2041-11-09
AI Technical Summary
In existing technologies, setting separate infrared sensor holes and ambient light sensor holes on smart mobile terminals increases manufacturing costs and occupies a larger area of the device.
Infrared sensing and ambient light sensing functions are integrated into a single sensing module. By setting a group of sensing holes on the housing and using a filter layer group, only visible light and infrared light are allowed to pass through. The integrated sensing module is used to automatically adjust the brightness and on/off state of the screen.
It reduces manufacturing costs, decreases the overall machine footprint, and improves testing accuracy and user experience.
Smart Images

Figure CN114244923B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of intelligent mobile terminal device, in particular to an integrated sensing device, a mobile terminal and a mobile phone. BACKGROUND
[0002] Early intelligent mobile phones or other intelligent mobile terminals have an infrared radiation hole (IR hole), which is used to shield the hole to control the corresponding operation of the mobile phone or other intelligent mobile terminal when making a call or performing gesture control. For example, the mobile phone automatically turns off the screen when it is close to the ear, and automatically turns on the screen when it is away from the ear. Specifically, an infrared transmitter and an infrared receiver are set, and a silk-screened infrared ink hole is set at the corresponding position of the cover plate of the mobile phone or intelligent terminal, so that the amount of infrared light is sensed through the infrared transmitter, infrared receiver and infrared ink hole to realize the screen on / off effect.
[0003] With the development and improvement of technology, in recent years, intelligent mobile phones or other intelligent mobile terminals have additionally added an ambient light sensing hole (Light Sensor hole), which is used to automatically adjust the screen brightness by sensing the intensity of external visible light, so that the human eye is more comfortable when viewing the mobile phone screen. Specifically, a light sensing device (Light Sensor) is set, and an ambient light sensing hole is set at the corresponding position of the cover plate of the mobile phone or intelligent terminal, so that the amount of external visible light is sensed through the light sensing device to automatically adjust the brightness of the mobile phone screen.
[0004] However, in the prior art, there is no relationship between the two holes described above, and the positions can be placed at will, but each type of hole needs to be set with a corresponding sensor device, and the separate setting method increases the number of shell openings and the number of silk-screened light filtering layers in the holes, thereby increasing the overall production cost and occupying a larger area of the whole machine. SUMMARY
[0005] The main purpose of the present application is to provide an integrated sensing device, a mobile terminal and a mobile phone, which aims to solve the technical problem of the prior art that the separate setting of the sensor device increases the overall production cost and occupies a larger area of the whole machine.
[0006] To achieve the above-mentioned purpose, the present application provides an integrated sensing device, which comprises a shell, a light filtering layer group and a sensing module, wherein the shell is provided with a sensing hole group; the light filtering layer group is arranged at the position of the sensing hole group, and is used to transmit infrared light and visible light; and the sensing module is arranged at the corresponding position of the sensing hole group to receive the visible light and infrared light transmitted through the sensing hole group.
[0007] Optionally, the filter layer set comprises a first filter layer and a second filter layer, the first filter layer covers the surface of the sensing hole set; the second filter layer is arranged on the first filter layer, and the first filter layer and the second filter layer are used for transmitting infrared light and visible light, wherein the transmittance of the first filter layer and the second filter layer to visible light is 1% to 3%, and the transmittance of the first filter layer and the second filter layer to infrared light is greater than or equal to 85%.
[0008] Optionally, the first filter layer is an infrared ink layer, and the second filter layer is a diffusion white oil layer.
[0009] Optionally, the transmittance of the first filter layer to visible light with a wavelength of 550 nm is 6% to 12%, and the transmittance of the first filter layer to infrared light with a wavelength of 850 nm to 950 nm is greater than or equal to 80%; the transmittance of the second filter layer to visible light with a wavelength of 550 nm is 27% to 43%.
[0010] Optionally, the sensing module comprises a sensing element and an emitting element; the sensing hole set comprises a first sensing hole and a second sensing hole arranged adjacent to the first sensing hole; wherein the sensing element is arranged at a position corresponding to the first sensing hole, the filter layer set is arranged in the first sensing hole, the emitting element is arranged at a position corresponding to the second sensing hole, a third filter layer is arranged in the second sensing hole, and the third filter layer is used for transmitting infrared light.
[0011] Optionally, the third filter layer is an infrared ink layer.
[0012] Optionally, the transmittance of the third filter layer to visible light with a wavelength of 550 nm is less than or equal to 1%, and the transmittance of the third filter layer to infrared light with a wavelength of 850 nm to 950 nm is greater than or equal to 85%.
[0013] Optionally, the first sensing hole and the second sensing hole are in communication.
[0014] In addition, to solve the above problems, the application further provides a mobile terminal, which comprises a mobile terminal body and an integrated sensing device as described above, and the integrated sensing device is arranged on the mobile terminal body.
[0015] In addition, to solve the above problems, the application further provides a mobile phone, which comprises a mobile phone body and an integrated sensing device as described above, and the integrated sensing device is arranged on the mobile phone body.
[0016] The technical scheme of the present application integrates the functions of automatically adjusting screen brightness and automatically adjusting screen on and off into the sensing module, and a sensing hole group is arranged at the position of the sensing module on the shell, the filter layer group in the sensing hole group is adjusted so that only visible light and infrared light can pass through, the feasibility of the sensing module automatically adjusting screen brightness and automatically adjusting screen on and off is ensured, the production cost is reduced, and the area occupancy of the whole machine is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description only represent some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort based on the drawings shown.
[0018] Figure 1 The structure diagram of the integrated sensing device of the present application is shown in the figure.
[0019] Figure 2 The top structure diagram of the integrated sensing device of the present application is shown in the figure.
[0020] Figure 3 The structure diagram of the sensing module in the integrated sensing device of the present application is shown in the figure.
[0021] Explanation of reference numerals:
[0022] Reference Name Reference Name 10 Induction module 11 Induction element 12 Emission element 20 Induction hole group 21 First induction hole 22 Second induction hole 30 Housing
[0023] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the scope of protection of the present application.
[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.
[0026] In addition, the descriptions such as "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.
[0027] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium, can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0028] In addition, the technical solutions of various embodiments of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.
[0029] The "up and down" referred to in the present application is based on the orientation shown in the drawings, that is, the "up and down" referred to in the present application corresponds to the up and down orientation of the drawings. Figure 1 The "up and down" referred to in the present application is based on the orientation shown in the drawings, that is, the "up and down" referred to in the present application corresponds to the up and down orientation of the drawings. Figure 1 The "up and down" referred to in the present application is based on the orientation shown in the drawings, that is, the "up and down" referred to in the present application corresponds to the up and down orientation of the drawings.
[0030] The present application proposes an integrated induction device, please refer to Figures 1-3 , the integrated induction device includes a shell 30, a filter layer group and an induction module 10, the shell 30 is provided with an induction hole group 20; the filter layer group is arranged at the position of the induction hole group 20, the filter layer group is used for transmitting infrared light and visible light; the induction module 10 is arranged at the corresponding position of the induction hole group 20 to receive the visible light and infrared light transmitted through the induction hole group 20.
[0031] In the normal assembly, the sensing module 10 is installed in the shell 30, and when the shell 30 is placed horizontally, the sensing module 10 is located directly below the sensing hole group 20. The visible light or infrared light passing through the sensing hole group 20 is directly projected onto the sensing module 10. Specifically, taking a mobile phone as an example, the sensing hole group 20 can be arranged at the top of the shell 30 or near the earpiece position. Thus, when the user answers the phone, the sensing module 10 can be used for detection. In order to improve the detection accuracy, it is necessary to control that the light other than infrared light cannot pass through the sensing hole group 20 and be projected onto the sensing module 10. The infrared light passes through the filter layer group and is projected onto the sensing module 10, thereby controlling the function of automatically turning on and off the screen.
[0032] In normal use, the user can automatically adjust the screen brightness by detecting the brightness of the visible light in the current use scenario. The user's experience is determined by the visible light in the current use scenario. When the light is strong, the screen brightness needs to be increased, and when the light is dark, the screen brightness needs to be reduced, thereby improving the user's experience. Therefore, under the action of the filter layer group, it is necessary to control that the light other than visible light cannot pass through the sensing hole group 20 and be projected onto the sensing module 10. The visible light passes through the filter layer group and is projected onto the sensing module 10, thereby realizing the function of detecting the amount of visible light and automatically adjusting the screen brightness.
[0033] In the above process, in order to ensure the detection accuracy of the sensing module 10, the filter layer group needs to minimize the interference between infrared light and visible light. Specifically, the wavelength of visible light is 550 nm, and the wavelength of infrared light is 850 nm to 950 nm. The filter layer group is composed of the first filter layer and the second filter layer. The second filter layer is arranged on the first filter layer. The second filter layer is used for passing visible light. The transmittance of the first filter layer and the second filter layer in combination to visible light is 1% to 3%, and the transmittance to infrared light is greater than or equal to 85%. Thus, the transmittance of the visible light is minimized to avoid the mutual influence between visible light and infrared light.
[0034] Specifically, the first filter layer is an infrared ink layer (IR ink layer), the first filter layer is covered on the filter layer group in a silk printing manner, the transmittance of the first filter layer to visible light with a wavelength of 550 nm is 6% to 12%, and the transmittance of the first filter layer to infrared light with a wavelength of 850 nm to 950 nm is greater than or equal to 80%. The second filter layer is a diffusion white ink layer, the transmittance of the second filter layer to visible light with a wavelength of 550 nm is 27% to 43%, and the second filter layer can also scatter visible light, improve the uniformity of light, and then improve the photosensitivity to ensure the accuracy of the final monitoring result.
[0035] In the embodiment, the first filter layer and the second filter layer are combined, the transmittance of the ink is used to control visible light and infrared light at the same time, and the light from the outside passes through the sensing hole group 20 and is transmitted to the sensing module 10. The sensing module 10 automatically adjusts the brightness of the screen by the difference in the amount of received visible light, and realizes the screen on / off operation by the amount of received infrared light.
[0036] The technical scheme integrates the functions of automatically adjusting the brightness of the screen and automatically adjusting the screen on / off into the sensing module 10, a sensing hole group 20 is arranged at a position corresponding to the sensing module 10 in the shell 30, the filter layer group in the sensing hole group 20 is adjusted, so that only visible light and infrared light can pass through, the feasibility of the sensing module 10 automatically adjusting the brightness of the screen and automatically adjusting the screen on / off is ensured, the production cost is reduced, and the area occupancy of the whole machine is reduced.
[0037] In order to further improve the integration degree of the integrated sensing device, the infrared emission function can also be integrated into the sensing module 10 in the embodiment. Specifically, the sensing module 10 includes a sensing element 11 and a transmitting element 12; the sensing hole group 20 includes a first sensing hole 21 and a second sensing hole 22 arranged adjacent to the first sensing hole 21; the sensing element 11 is arranged at a position corresponding to the first sensing hole 21, the filter layer group is arranged in the first sensing hole 21, the transmitting element 12 is arranged at a position corresponding to the second sensing hole 22, and the second sensing hole 22 is provided with a third filter layer.
[0038] The sensing hole group 20 is formed by the first sensing hole 21 and the second sensing hole 22, wherein the first sensing hole 21 is arranged above the sensing element, so that visible light and infrared light can pass through and project on the sensing element 11, to realize the function of automatically controlling screen brightness or automatically controlling screen on / off. The second sensing hole 22 is arranged above the emitting element 12, and it is to be noted that the sensing element 11 is spaced apart from the emitting element 12 by a certain distance, such as 1mm-2mm, and the second sensing hole 22 can only pass through infrared light, so that the emitting element 12 can emit infrared signals outward through the second sensing hole 22, to realize remote control or other functions.
[0039] The third filter layer is an infrared ink layer. It is to be noted that the wavelength and transmittance of the light filtered by the filter layer can be changed by adjusting the viscosity of the ink or adjusting the type of the ink. Specifically, in the embodiment, the third filter layer is arranged to have a transmittance of less than or equal to 1% for visible light and a transmittance of greater than or equal to 85% for infrared light.
[0040] It is to be noted that in the embodiment, the first sensing hole 21 and the second sensing hole 22 can be communicated. That is, only one hole is formed on the shell 30, and the sensing element 11 and the emitting element 12 can realize corresponding functions through the sensing hole group 20 at the same time. Therefore, the manufacturing cost of the integrated sensing device of the application is further reduced, and the area occupancy rate of the whole machine is reduced.
[0041] In addition, to solve the above problems, the application further provides a mobile terminal, which comprises a mobile terminal body and an integrated sensing device as described above, and the integrated sensing device is arranged on the mobile terminal body.
[0042] In the normal assembly condition, the sensing module 10 is installed in the shell 30, and when the shell 30 is placed horizontally, the sensing module 10 is located directly below the sensing hole group 20. Visible light or infrared light passing through the sensing hole group 20 will be directly projected on the sensing module 10. Specifically, taking a mobile phone as an example, the sensing hole group 20 can be arranged at the top position of the shell 30 or near the earpiece position. Therefore, when the user answers the phone, the sensing module 10 can be used for detection. In order to improve the detection accuracy, it is necessary to control that light other than infrared light cannot pass through the sensing hole group 20 and project on the sensing module 10. Infrared light passes through the filter layer group and projects on the sensing module 10, to realize the function of automatically controlling screen on / off.
[0043] When the user uses it normally, the screen brightness can be automatically adjusted by detecting the visible light brightness of the current use scene, and the user's use experience is determined by the visible light in the current use scene. When the light is strong, the screen brightness needs to be increased, and when the light is dark, the screen brightness needs to be reduced, thereby improving the user's use experience. Therefore, under the action of the filter layer group, the light other than visible light is controlled as much as possible to be unable to pass through the sensing hole group 20 and be projected onto the sensing module 10. The visible light is projected onto the sensing module 10 through the filter layer group, so as to detect the amount of visible light and realize the function of automatically adjusting the screen brightness.
[0044] In the above process, in order to ensure the detection accuracy of the sensing module 10, the filter layer group needs to filter out light other than visible light and infrared light. Specifically, the wavelength of visible light is 550 nm, and the wavelength of infrared light is 850 nm. The filter layer group is composed of the first filter layer and the second filter layer. The first filter layer is used to transmit infrared light and visible light, that is, only infrared light and visible light can pass through the first filter layer. The second filter layer is arranged on the first filter layer, and the second filter layer is used to pass visible light, that is, only visible light can pass through the second filter layer.
[0045] Specifically, the first filter layer is an infrared ink layer (IR ink layer), which is covered on the filter layer group by silk printing, so that only visible light and infrared light can pass through. The second filter layer is a diffusion white oil layer, and only visible light can pass through the second filter layer, and the light passing through the hole is scattered and homogenized. The transmittance of the first filter layer to visible light is 6% to 12%, and the transmittance of the first filter layer to infrared light is greater than or equal to 80%. The transmittance of the second filter layer to visible light is 27% to 43%.
[0046] In this embodiment, by combining the first filter layer and the second filter layer, the transmittance of the ink is used to control visible light and infrared light at the same time. The light from the outside passes through the sensing hole group 20 and is transmitted to the sensing module 10. The sensing module 10 automatically adjusts the brightness of the screen by receiving the difference in the amount of visible light, and realizes the screen on / off operation by receiving the amount of infrared light. It should be noted that the transmittance of the first filter layer and the second filter layer to visible light is 1% to 3%, and the transmittance of the first filter layer and the second filter layer to infrared light is greater than or equal to 85%.
[0047] The technical scheme of the present application integrates the functions of automatically adjusting screen brightness and automatically adjusting screen on and off into the sensing module 10, and a sensing hole group 20 is formed in the position of the casing 30 corresponding to the sensing module 10, so that only visible light and infrared light can pass through by adjusting the filter layer group in the sensing hole group 20, thereby ensuring the feasibility of the sensing module 10 in automatically adjusting screen brightness and automatically adjusting screen on and off, reducing the increase of the overall production cost, and reducing the occupancy rate of the overall machine area.
[0048] In addition, to solve the above problems, the present application also provides a mobile phone, which comprises a mobile phone body and an integrated sensing device as described above, and the integrated sensing device is arranged on the mobile phone body.
[0049] In the normal assembly condition, the sensing module 10 is installed in the casing 30, and when the casing 30 is placed horizontally, the sensing module 10 is located directly below the sensing hole group 20. Visible light or infrared light passing through the sensing hole group 20 is directly projected onto the sensing module 10. Specifically, taking a mobile phone as an example, the sensing hole group 20 can be arranged at the top position of the casing 30 or near the earpiece position. Therefore, when the user answers the phone, the sensing module 10 can be used for detection. In order to improve the detection accuracy, it is necessary to control that light other than infrared light cannot pass through the sensing hole group 20 and be projected onto the sensing module 10. After the infrared light passes through the filter layer group, it is projected onto the sensing module 10, thereby controlling the function of automatically turning on and off the screen.
[0050] When the user uses it normally, the screen brightness can be automatically adjusted by detecting the brightness of the visible light in the current use scenario. The use experience of the user is determined by the visible light in the current use scenario. When the light is strong, the screen brightness needs to be increased, and when the light is dark, the screen brightness needs to be reduced, thereby improving the use experience of the user. Therefore, under the action of the filter layer group, it is necessary to control that light other than visible light cannot pass through the sensing hole group 20 and be projected onto the sensing module 10. The visible light passes through the filter layer group and is projected onto the sensing module 10, thereby realizing the detection of the amount of visible light, and realizing the function of automatically adjusting screen brightness.
[0051] In the above process, in order to ensure the detection accuracy of the induction module 10, the filter layer group needs to filter out light other than visible light and infrared light. Specifically, the wavelength of visible light is 550 nm, and the wavelength of infrared light is 850 nm. The filter layer group is composed of the first filter layer and the second filter layer, the first filter layer is used to transmit infrared light and visible light, that is, only infrared light and visible light can pass through the first filter layer; the second filter layer is arranged on the first filter layer, and the second filter layer is used to transmit visible light, that is, only visible light can pass through the second filter layer.
[0052] Specifically, the first filter layer is an infrared ink layer (IR ink layer), and the first filter layer is covered on the filter layer group in a silk screen manner, so that only visible light and infrared light can pass through. The second filter layer is a diffusion white oil layer, only visible light can pass through the second filter layer, and the light passing through the hole is scattered and homogenized. The transmittance of the first filter layer to visible light is 6% to 12%, and the transmittance of the first filter layer to infrared light is greater than or equal to 80%; the transmittance of the second filter layer to visible light is 27% to 43%.
[0053] In this embodiment, by combining the first filter layer and the second filter layer, the transmittance of the ink is used to control visible light and infrared light at the same time. After the external light passes through the induction hole group 20, it is transmitted to the induction module 10. The induction module 10 automatically adjusts the brightness of the screen by receiving the difference in the amount of visible light, and realizes the screen on / off operation by receiving the amount of infrared light. It should be noted that the transmittance of the first filter layer and the second filter layer to visible light is 1% to 3%, and the transmittance of the first filter layer and the second filter layer to infrared light is greater than or equal to 85%.
[0054] The technical scheme of the present application integrates the functions of automatically adjusting the brightness of the screen and automatically adjusting the screen on / off into the induction module 10. A induction hole group 20 is provided in the position corresponding to the induction module 10 in the shell 30. By adjusting the filter layer group in the induction hole group 20, only visible light and infrared light can pass through, ensuring the feasibility of the induction module 10 automatically adjusting the brightness of the screen and automatically adjusting the screen on / off, reducing the increase of the entire production cost, and reducing the occupancy rate of the entire machine area.
[0055] The above is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.
Claims
1. An integrated inductive device, characterized by, The integrated sensing device comprises: a shell provided with a sensing hole group; a light filter layer group arranged at the position of the sensing hole group, the light filter layer group being used for transmitting infrared light and visible light; a sensing module arranged at the position corresponding to the sensing hole group to receive the visible light and the infrared light transmitted through the sensing hole group; the light filter layer group comprises a first light filter layer and a second light filter layer, the first light filter layer being arranged on the surface of the sensing hole group, the second light filter layer being arranged on the first light filter layer, the first light filter layer having a transmittance of 6% to 12% for visible light with a wavelength of 550 nm, and the first light filter layer having a transmittance greater than or equal to 80% for infrared light with a wavelength of 850 nm to 950 nm; the second light filter layer having a transmittance of 27% to 43% for visible light with a wavelength of 550 nm.
2. The integrated inductive device of claim 1, wherein, The first light filter layer and the second light filter layer are used for transmitting infrared light and visible light, wherein the first light filter layer and the second light filter layer in combination have a transmittance of 1% to 3% for visible light and a transmittance greater than or equal to 85% for infrared light.
3. The integrated inductive device of claim 2, wherein, The first light filter layer is an infrared ink layer, and the second light filter layer is a diffusion white oil layer.
4. The integrated inductive device of claim 1, wherein, The sensing module comprises a sensing element and an emitting element; the sensing hole group comprises a first sensing hole and a second sensing hole arranged adjacent to the first sensing hole; wherein the sensing element is arranged at the position corresponding to the first sensing hole, the light filter layer group is arranged in the first sensing hole, the emitting element is arranged at the position corresponding to the second sensing hole, and the second sensing hole is provided with a third light filter layer used for transmitting infrared light.
5. The integrated inductive device of claim 4, wherein, The third light filter layer is an infrared ink layer.
6. The integrated inductive device of claim 4, wherein, The third light filter layer has a transmittance less than or equal to 1% for visible light with a wavelength of 550 nm and a transmittance greater than or equal to 85% for infrared light with a wavelength of 850 nm to 950 nm.
7. The integrated inductive device of claim 4, wherein, The first sensing hole is in communication with the second sensing hole.
8. A mobile terminal, characterized by The mobile terminal comprises a mobile terminal body and the integrated sensing device according to any one of claims 1 to 7, the integrated sensing device being arranged on the mobile terminal body.
9. A handset, comprising: The mobile phone comprises a mobile phone body and the integrated sensing device according to any one of claims 1 to 7, the integrated sensing device being arranged on the mobile phone body.
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