Patent Publication Number: US-11387292-B2

Title: Electronic device

Description:
CROSS REFERENCE TO RELATED APPLICATION 
     This application is a continuation of U.S. patent application Ser. No. 16/176,534, filed Oct. 31, 2018, which claims priority to Chinese Patent Application No. 201810193173.8, filed Mar. 9, 2018, the entire disclosures of which are incorporated herein by reference. 
    
    
     FIELD 
     The present disclosure relates to a technical field of electronic technologies, and particularly to an electronic device. 
     BACKGROUND 
     In an electronic device, such as a mobile, a proximity sensor is provided in a top portion of the mobile phone to detect whether the mobile phone is in a call state or is put in a pocket, so as to control a display screen to have a self-lock, thus preventing misoperations of a user. With developments of the electronic device, a full-screen display has become a development tendency of the mobile phone. However, a high screen-to-body ratio of the full-screen display leaves limited space for the proximity sensor or other elements in the display screen. 
     SUMMARY 
     Embodiments of a first aspect of the present disclosure provide an electronic device. The electronic device includes: a housing; a light-permeable display screen received in the housing and including a display area and a black matrix area surrounding the display area; an emitter received in the housing, arranged between the light-permeable display screen and the housing, opposed to the black matrix area, and configured to emit an infrared light through the black matrix area; and a receiver received in the housing, arranged between the light-permeable display screen and the housing, opposed to the black matrix area, and configured to receive the infrared light through the black matrix area. 
     Embodiments of a second aspect of the present disclosure provide another electronic device. The electronic device includes: a light-permeable display screen having a first surface and a second surface facing away from the first surface, the second surface including a display area and a black matrix area surrounding the display area; and an optical sensor disposed opposite to the second surface of the light-permeable display screen, including an emitter arranged opposite to the black matrix area and configured to emit an infrared light through the black matrix area, and a receiver arranged opposite to the black matrix area and configured to receive the infrared light through the black matrix area. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and/or appended aspects and advantages of embodiments of the present disclosure will become apparent and more readily appreciated from the following descriptions made with reference the accompanying drawings. 
         FIG. 1  is a perspective view of an electronic device in the present disclosure. 
         FIG. 2  is a sectional view of the electronic device according to some embodiments of the present disclosure. 
         FIG. 3  is a perspective view of a light-permeable display screen in the present disclosure. 
         FIG. 4  is a sectional view of the electronic device according to some embodiments of the present disclosure. 
         FIG. 5  is a sectional view of the electronic device according to some embodiments of the present disclosure. 
         FIG. 6A  and  FIG. 6B  are perspective views of a light-permeable display screen in the present disclosure, in which the light-permeable display screen may be applied to the electronic device illustrated in  FIG. 5 . 
         FIG. 7  is a sectional view of the electronic device according to some embodiments of the present disclosure. 
         FIG. 8A  and  FIG. 8B  are perspective views of a light-permeable display screen in the present disclosure, in which the light-permeable display screen may be applied to the electronic device illustrated in  FIG. 7 . 
         FIG. 9  is a sectional view of the electronic device according to some embodiments of the present disclosure. 
         FIG. 10  is a perspective view of a light-permeable display screen in the present disclosure, in which the light-permeable display screen may be applied to the electronic device illustrated in  FIG. 9 . 
         FIG. 11  is a sectional view of the electronic device according to some embodiments of the present disclosure. 
         FIG. 12  is a perspective view of a light-permeable display screen in the present disclosure, in which the light-permeable display screen may be applied to the electronic device illustrated in  FIG. 11 . 
         FIG. 13A  and  FIG. 13B  are sectional views of the electronic device according to some embodiments of the present disclosure. 
         FIG. 14A  and  FIG. 14B  are sectional views of the electronic device according to some embodiments in the present disclosure. 
         FIG. 15  is a sectional view of the electronic device according to some embodiments of the present disclosure. 
         FIG. 16  is a block diagram of a manufacturing method for an electronic device in the present disclosure. 
         FIG. 17  is a block diagram of the manufacturing method for the electronic device according to some embodiments of the present disclosure, in which a further action is illustrated. 
         FIG. 18  is a block diagram of the manufacturing method for the electronic device according to some embodiments of the present disclosure, in which a further action is illustrated. 
         FIG. 19  is a block diagram of the manufacturing method for the electronic device according to some embodiments of the present disclosure, in which a further action is illustrated. 
         FIG. 20  is a block diagram of the manufacturing method for the electronic device according to some embodiments of the present disclosure, in which a further action is illustrated. 
         FIG. 21  is a block diagram of the manufacturing method for the electronic device according to some embodiments of the present disclosure, in which a further action is illustrated. 
         FIG. 22  is a block diagram of the manufacturing method for the electronic device according to some embodiments of the present disclosure, in which a further action is illustrated. 
     
    
    
     DETAILED DESCRIPTION 
     Embodiments of the present disclosure will be described in detail in the following. Examples of the embodiments are illustrated in the drawings. The same or similar elements and the elements having same or similar functions are denoted by like reference numerals throughout the descriptions. The embodiments described herein with reference to drawings are explanatory, and used to generally understand the present disclosure. The embodiments shall not be construed to limit the present disclosure. 
     An electronic device, such as a mobile phone or a tablet PC, usually is provided with an infrared sensor to detect a distance from the electronic device to a user. Tacking the mobile phone as an example, the infrared sensor is arranged in an upper portion of the mobile phone. When the user has a voice call or makes related operations, the mobile phone is moved towards the user&#39;s head, the infrared sensor feeds distance information back to a processor, and the processor performs a corresponding instruction, such as turning off lights of a display screen component. In the related art, in order to arrange the infrared sensor in the electronic device, a housing of the electronic device needs to be provided with a corresponding hole for emitting and receiving an infrared light signal. However, with developments of the electronic device, people have higher and higher requirements on an appearance and an operation experience of the mobile phone. The mobile phone has been developed to have a full-screen display, and there is an ultra-narrow bezel between the display screen component and the housing of the mobile phone having the full-screen display. The ultra-narrow bezel has such a small width that the ultra-narrow bezel may not have sufficient space to be provided with the hole. Even if the ultra-narrow bezel is provided with the hole, a strength of the whole ultra-narrow bezel will be reduced, thus decreasing reliability of the electronic device. 
     Embodiments of the present provide an electronic device. The electronic device includes a housing, a light-permeable display screen, an emitter and a receiver. The light-permeable display screen is received in the housing and includes a display area and a black matrix area surrounding the display area. The black matrix area includes a first window region. The emitter is arranged at a side of the light-permeable display screen and opposite to the first window region of the black matrix area. The receiver is arranged at the side of the light-permeable display screen and configured to communicate with the emitter. 
     Embodiments of the present further provide another electronic device. The electronic device includes a light-permeable display screen and an optical sensor. The light-permeable display screen has a first surface and a second surface facing away from the first surface. The second surface includes a display area and a black matrix area surrounding the display area. The black matrix area includes a first window region. An optical sensor is disposed opposite to the second surface of the light-permeable display screen, includes an emitter configured to emit an infrared light through the first window region and a receiver configured to receive the infrared light through the light-permeable display screen. 
     As illustrated in  FIG. 1 , an electronic device  100  according to embodiments of the present disclosure may be the mobile phone or the tablet PC. The mobile phone is taken as an example to describe the electronic device  100  according to embodiments of the present disclosure. Certainly, the electronic device  100  may have other specific forms, which will not be defined herein. 
     As illustrated in  FIG. 2 , the electronic device  100  includes a light-permeable display screen  13  and an optical sensor  16 . 
     The light-permeable display screen  13  includes a first surface  131  and a second surface  132  facing away from the first surface  131 . The second surface  132  includes a display area  1311  and a black matrix area  1312 , and the black matrix area  1312  surrounds the display area  1311 . The display area  1311  is configured to display information, such as images and texts, while the black matrix area  1312  is not used to display information. The black matrix area  1312  may be formed by printing ink at a periphery of the second surface  132 . The black matrix area  1312  includes a first window region  1320 . The light-permeable display screen  13  is configured for light-emitting display through the display area  1311  and the first surface  131 . The optical sensor  16  includes an emitter  1611  and a receiver  1612 , the emitter  1611  is configured to emit an infrared light through the first window region  1320 , and the receiver  1612  is configured to receive the infrared light through the second surface  132 , i.e. one of the display area  1311  and the black matrix area  1312 . In some embodiments, the receiver  1612  is further configured to receive a visible light through the one of the display area  1311  and the black matrix area  1312 . 
     It can be understood that the first surface  131  of the light-permeable display screen  13  also includes a display area corresponding to that of the second surface  132  of the light-permeable display screen  13  and a black matrix area corresponding to that of the second surface  132  of the light-permeable display screen  13 , in terms of functions. 
     That is, the first surface  131  may not be printed with ink at a periphery thereof, but the first surface  131  actually includes the display area and the black matrix area in functions correspondingly, due to the arrangement of the display area and the black matrix area of the second surface  132 . Thus, the whole light-permeable display screen  13  includes a display area and a black matrix area extending from the first surface  131  to the second surface  132 . 
     The emitter  1611  is configured to emit an infrared light. The infrared light passes through the first window region  1320  and then through the first surface  131  to outside. When the infrared light emitted by the emitter  1611  encounters an obstacle in a detection direction, a part of the infrared light will be reflected back, passes through the first surface  131  and then through the display area  1311  or the black matrix area  1312  in the second surface  132 , and finally is received by the receiver  1612 , and thus a distance from the electronic device  100  to the obstacle can be determined by a processor calculating a time of the infrared light from being emitted to being reflected back, such that a corresponding adjustment can be made. For example, when the user makes or receives a call, the electronic device  100  is moved towards the user&#39;s head, the emitter  1611  emits the infrared light, and the receiver  1612  receives the infrared light reflected back from the head. After the processor calculates the time of the infrared light from being emitted to being reflected back, a corresponding instruction is generated to control the display screen to turn off its backlight. When the electronic device  100  moves away from the head, the processor calculates again according to the data feed back and generates an instruction to turn on the backlight of the display screen again. In this way, the user&#39;s misoperations are prevented, and the battery power of the mobile phone can be saved. 
     In some embodiments, the receiver  1612  is further configured to detect a light intensity of an environment in which the electronic device  100  is. When the electronic device  100  is in the sun or in a relatively dark environment, the receiver  1612  feeds the light intensity of the surrounding environment back to the processor, and the processor generates the corresponding instruction according to the light intensity, so as to adjust the backlight of the display screen. In actual operations, the receiver  1612  receives the infrared light and the visible light at different time. For example, when a related operation such as receiving a call is performed, a distance detection is conducted; when a related operation such as browsing the displayed content is performed, an ambient brightness detection is conducted. 
     In some embodiments, the electronic device  100  further includes a housing  20 , and the housing  20  is configured to receive elements of the electronic device  100  to provide a protection function therefor. By arranging the electronic device  100  in the housing  20 , the electronic device  100  is enclosed, such that elements inside the electronic device  100  are protected from direct damages resulted from external factors. The housing  20  may be formed by a computer numerical control (CNC) machine tool processing an aluminium alloy, or may be molded by injection of Polycarbonate (PC) or of PC and acrylonitrile butadiene styrene (ABS) materials. 
     In conclusion, in the electronic device  100  according to embodiments of the present disclosure, the optical sensor  16  can be arranged below the light-permeable display screen  13  with the full-screen display, and thus the conventional operation for providing the hole is avoided, thus ensuring the reliability of the strength of the whole black matrix area of the electronic device  100 , and further improving a screen-to-body ratio of the electronic device  100 . By providing the emitter  1611  of the optical sensor at the black matrix area  1312 , the infrared light emitted by the emitter  1611  can be prevented from affecting operation stability of a thin film transistor (TFT) of the display area  1311 . 
     In some embodiments, the light-permeable display screen  13  includes an organic light emitting diode (OLED) display screen. 
     In some embodiments, the OLED display screen has great transparency and allows the visible light and the infrared light to pass therethrough. Thus, the OLED display screen will not affect the optical sensor in emitting and receiving the infrared light while displaying content. The light-permeable display screen  13  may adopt a Micro light-emitting diode (LED) display screen. The Micro LED display screen also has a great light transmittance for the visible light and the infrared light. Certainly, these display screens are merely exemplary, and embodiments of the present disclosure are not limited to this. 
     As illustrated in  FIG. 4 , in some embodiments, the electronic device  100  further includes a light-permeable touch panel  12  and a light-permeable cover plate  11 . The light-permeable cover plate  11  is arranged on the light-permeable touch panel  12 , the light-permeable touch panel  12  is arranged on the light-permeable display screen  13 , and the first surface  131  of the light-permeable display screen  13  faces the light-permeable touch panel  12 . The light-permeable touch panel  12  and the light-permeable cover plate  13  each have a light transmittance for the visible light larger than 90% and a light transmittance for the infrared light larger than 90%. 
     In some embodiments, the light-permeable touch panel  12  is mainly configured to receive an input signal generated when the user touches the light-permeable touch panel  12  and to transmit the input signal to the circuit board for data process, so as to obtain a specific position where the user touches the light-permeable touch panel  12 . The light-permeable touch panel  12  may be laminated with the light-permeable display screen  13  by using an in-cell lamination technology or an on-cell lamination technology, thus effectively reducing a weight and a whole thickness of the display screen. 
     In addition, since the light-permeable cover plate  11  is arranged on the light-permeable touch panel  12 , the light-permeable touch panel  12  and its internal structures can be protected effectively, thus preventing the light-permeable touch panel  12  and the light-permeable display screen  13  from being damaged by an external force. The light-permeable cover plate  11  and the light-permeable touch panel  12  each have a light transmittance for the visible light larger than 90% and a light transmittance for the infrared light larger than 90%, thus facilitating the light-permeable display screen  13  to display the content better, and also facilitating the optical sensor  16  arranged below the light-permeable display screen  13  to emit and receive the infrared light stably, thereby ensuring normal operations of the optical sensor  16 . 
     As illustrated in  FIG. 3 , in some embodiments, the light-permeable display screen  13  is configured for light-emitting display through the display area  1311 , and a ratio of an area of the display area  1311  to an area of the light-permeable cover plate  11  is larger than 90%. 
     By setting the ratio of the area of the display area  1311  to the area of the light-permeable cover plate  11 , the display area  1311  can display the content with a relatively large area size after the light-permeable display screen  13  is laminated with the light-permeable cover plate  11 , thus improving the user experience, increasing the screen-to-body ratio of the electronic device  100 , and hence achieving the full-screen display. The black matrix area  1312  may also be configured to shield other elements and metal wires located below the light-permeable display screen  13 , thus allowing the appearance of the electronic device  100  to be consistent. The black matrix area  1312  may enhance an optical density of the light-permeable display screen  13  by means of ink printing, so as to provide a great visual effect while ensuring a light shield function. 
     As illustrated in  FIG. 5 , in some embodiments, the electronic device  100  further includes a coating layer  14 , and the coating layer  14  is coated at the first window region  1320  and covers the emitter  1611 . 
     In some embodiments, the black matrix area  1312  is usually printed with black ink for light shield, such that the other elements and metal wires located below the light-permeable display screen  13  are invisible. Since the emitter  1611  is arranged opposite to or even located in the first window region  1320  of the black matrix area  1312 , in order to ensure normal operations of the emitter  1611 , the first window region  1320  of the black matrix area  1312  is not printed with the black ink, while the coating layer  14  which has characteristics of blocking the visible light and allowing the infrared light to pass therethrough needs to be coated at the first window region  1320 . Thus, in a direction in which the optical sensor  16  is stacked with the light-permeable display screen  13 , an area of an orthographic projection of the coating layer  14  in the first window region  1320  covers an area of an orthographic projection of the emitter  1611  in the first window region  1320 , such that the coating layer  14  can shield the emitter  1611  fully without affecting the emitter  1611  in emitting the infrared light normally, thus achieving an effect that the emitter  1611  is invisible when the electronic device  100  is observed from outside. 
     In some embodiments, the coating layer  14  is configured to allow the infrared light to pass therethrough and to block the visible light, and the emitter  1611  is configured to emit the infrared light through the coating layer  14  and the first window region  1320 . 
     Since the coating layer  14  allows the infrared light to pass therethrough, when the emitter  1611  sends the infrared light out for detection, an intensity decrease of the infrared light is relatively small after the infrared light passes through the coating layer  14 , or the intensity decrease of the infrared light will not affect the detection process, thus ensuring the normal operations of the emitter  1611 . Since the coating layer  14  can block the visible light, the visible light cannot pass through the coating layer  14 , such that the emitter  1611  is visually shielded, thus achieving the effect that the emitter  1611  is invisible when the electronic device  100  is observed from outside. 
     In some embodiments, the coating layer  14  includes an infrared (IR) ink, the IR ink has a light transmittance for the infrared light larger than 85% and a light transmittance for the visible light less than 6%, and the IR ink allows the infrared light whose wave length ranges from 850 nm to 940 nm to pass therethrough. 
     Since the IR ink has a low light transmittance for the visible light, the emitter  1611  arranged below the coating layer  14  cannot be seen via a visual sense based on human eyes, when the electronic device  100  is observed from outside. Also, since the IR ink further has a high light transmittance for the infrared light, the emitter  1611  can emit the infrared light stably, thus ensuring the normal operations of the emitter  1611 . 
     In some embodiments, the optical sensor  16  includes a proximity sensor and an ambient-light sensor. The proximity sensor includes a proximity emitter and a proximity receiver, the proximity emitter is configured to emit the infrared light through the coating layer  14  and the first window region  1320 , and the proximity receiver is configured to receive the infrared light reflected by an object so as to detect a distance from the object to the electronic device  100 . The ambient-light sensor includes an ambient-light receiver, and the ambient-light receiver is configured to sense an ambient light so as to adjust a brightness of the light-permeable display screen  13 . 
     In some embodiments, when the user makes or receives a call, the electronic device  100  is moved towards the user&#39;s head, the proximity emitter emits the infrared light, and the proximity receiver receives the reflected infrared light. The processor calculates the time of the infrared light from being emitted to being reflected back, and generates a corresponding instruction to control the display screen to turn off its backlight. When the electronic device  100  moves away from the head, the processor calculates again according to the data feed back and generates an instruction to turn on the backlight of the display screen again. In this way, the user&#39;s misoperations are prevented, and the battery power of the mobile phone can be saved. In addition, the ambient-light receiver is configured to detect a light intensity of an environment in which the electronic device  100  is. When the electronic device  100  is in the sun or in a relatively dark environment, the ambient-light receiver feeds the light intensity of the surrounding environment back to the processor, and the processor generates the corresponding instruction according to the light intensity so as to adjust the backlight of the display screen. 
     In some embodiments, the proximity receiver and the ambient-light receiver are multiplexed. In some embodiments, the proximity receiver and the ambient-light receiver are integrated as a whole, so as to effectively reduce a whole size of the elements, to improve the space utilization of the electronic device  100 , and also to provide possible positions for other elements, such that the electronic device  100  can allocate spatial positions of various elements fully. In actual operations, the proximity receiver receives the infrared light and the visible light at different time. For example, when a related operation such as receiving a call is performed, a distance detection is conducted; when a related operation such as browsing the displayed content is performed, an ambient brightness detection is conducted. 
     As illustrated in  FIGS. 5 to 6B  or in  FIGS. 7 to 8B , in some embodiments, the display area  1311  includes a second window region  1330 , and the receiver  1612  is configured to receive the infrared light and/or the visible light through the second window region  1330 . 
     In some embodiments, the receiver  1612  may be arranged opposite to or even located in the second window region  1330  of the display area  1311 . Since the second window region  1330  needs to allow the infrared light and the visible light to pass therethrough, the ink or other coatings need not to be coated at the second window region  1330 . 
     As illustrated in  FIGS. 9 and 10  or in  FIGS. 11 and 12 , in some embodiments, the black matrix area  1312  further includes a second window region  1330 , and the receiver  1612  is configured to receive the infrared light and/or the visible light through the second window region  1330 . 
     In some embodiments, the receiver  1612  may be arranged opposite to or even located in the second window region  1330  of the black matrix area  1312 . Since the second window region  1330  needs to allow the infrared light and the visible light to pass therethrough, the ink or other coatings need not to be coated at the second window region  1330 . 
     In some embodiments of the present disclosure, as illustrated in  FIG. 10 , the emitter  1611  and the receiver  1612  are arranged in a line parallel with an edge of the light-permeable display screen  13 , and the receiver  1612  is arranged adjacent to the emitter  1611 . 
     In some embodiments of the present disclosure, as illustrated in  FIGS. 8A and 12 , the emitter  1611  and the receiver  1612  are arranged in a line parallel with an edge of the light-permeable display screen  13 , and the receiver  1612  is spaced apart from the emitter  1611 . 
     In some embodiments of the present disclosure, as illustrated in  FIG. 6A , the receiver  1612  is staggered with the emitter  1611  relative to an edge of the light-permeable display screen  13 , and the receiver  1612  is arranged adjacent to the emitter  1611 . 
     In some embodiments of the present disclosure, as illustrated in  FIGS. 6B and 8B , the receiver  1612  is staggered with the emitter  1611  relative to an edge of the light-permeable display screen  13 , and the receiver  1612  is spaced apart from the emitter  1611 . 
     As illustrated in  FIG. 13A or 13B , in some embodiments, the electronic device  100  further includes a buffer layer  17  covering the second surface  132 . 
     In some embodiments, the buffer layer  17  is configured to buffer an impact force and hence to be quakeproof, so as to protect the light-permeable touch panel  12  and the light-permeable display screen  13  as well as their internal structures, thus preventing the display screen from being damaged by an external impact effect. The buffer layer  17  may be made of foam, foamed plastics, rubber or other soft materials. Certainly, these buffer materials are merely exemplary, and embodiments of the present disclosure are not limited to this. In addition, when the receiver  1612  is arranged at the display area, in order to prevent the buffer layer  17  from blocking the signal reception of the receiver  1612 , the receiver  1612  is avoided in a process of providing the buffer layer  17 , such that the receiver  1612  will not be affected in receiving the infrared light and/or the visible light. 
     As illustrated in  FIG. 14A or 14B , furthermore, in such embodiments, the electronic device  100  further includes a metal sheet  18  covering the buffer layer  17 . 
     In some embodiments, the metal sheet  18  is configured for shielding electromagnetic interferences and also for grounding, and further has a function of diffusing a temperature rise. The metal sheet  18  may be formed by cutting metal materials such as a copper foil and an aluminum foil. Certainly, these metal materials are merely exemplary, and embodiments of the present disclosure are not limited to this. In addition, when the receiver  1612  is arranged at the display area, in order to prevent the metal sheet  18  from blocking the signal reception of the receiver  1612 , the receiver  1612  is avoided in a process of providing the metal sheet  18 , such that the receiver  1612  will not be affected in receiving the infrared light and/or the visible light. 
     As illustrated in  FIGS. 2 and 16  or in  FIGS. 15 and 16 , embodiments of the present disclosure provide a manufacturing method  30  for the electronic device  100 , and the manufacturing method  30  includes actions in followings blocks. 
     In block S 301 , a light-permeable display screen  13  is provided. The light-permeable display screen  13  includes a first surface  131  and a second surface  132 , and the second surface  132  faces away from the first surface  131 . The second surface  132  includes a display area  1311  and a black matrix area  1312  surrounding the display area  1311 , and the black matrix area  1312  includes a first window region  1320 . The light-permeable display screen  13  is configured for light-emitting display through the display area and the first surface  131 . 
     In block S 302 , an optical sensor  16  is provided. The optical sensor  16  includes an emitter  1611  configured to emit the infrared light through the first window region  1320  and a receiver  1612  configured to receive the infrared light (and also the visible light in some embodiments) through the second surface  132 , i.e. one of the display area  1311  and the black matrix area  1312 . 
     In the manufacturing method according to embodiments of the present disclosure, the light-permeable display screen  13  is used, such that the optical sensor  16  can be arranged below the light-permeable display screen  13  with the full-screen display, and thus the conventional operation for providing the hole is avoided, thus ensuring the reliability of the strength of the whole black matrix area of the electronic device  100 , and further improving a screen-to-body ratio of the electronic device  100 . By providing the emitter  1611  of the optical sensor at the black matrix area  1312 , the infrared light emitted by the emitter  1611  can be prevented from affecting operation stability of a thin film transistor (TFT) of the display area  1311 . The light-permeable display screen  13  may be an organic light emitting diode (OLED) display screen. The OLED display screen has great transparency and allows the visible light and the infrared light to pass therethrough. Thus, the OLED display screen will not affect the infrared sensor in emitting and receiving the infrared light while displaying content. The light-permeable display screen  13  may adopt a Micro light-emitting diode (LED) display screen. The Micro LED display screen also has a great light transmittance for the visible light and the infrared light. Certainly, these display screens are merely exemplary, and embodiments of the present disclosure are not limited to this. Moreover, the first surface  131  of the light-permeable display screen  13  allows the visible light to pass therethrough so as to display the content on one hand, and also allows the infrared light to pass therethrough on the other hand, such that the optical sensor  16  can emit and receive the infrared light normally. 
     As illustrated in  FIGS. 5 and 17  or in  FIGS. 7 and 17 , in some embodiments, the manufacturing method  30  for the electronic device  100  further includes actions in following blocks. 
     In block S 303 , a light-permeable touch panel  12  is coupled to the light-permeable display screen  13 . In some embodiments, the light-permeable touch panel  12  is arranged on the first surface  131  of the light-permeable display screen  13 . 
     In block S 304 , a light-permeable cover plate  11  is coupled to the light-permeable touch panel  12 . In some embodiments, the light-permeable cover plate  11  is arranged on a side of the light-permeable touch panel  12  facing away from the light-permeable display screen  13 . 
     In some embodiments, the light-permeable touch panel  12  is mainly configured to receive an input signal generated when the user touches the light-permeable touch panel  12  and to transmit the input signal to the circuit board for data process, so as to obtain a specific position where the user touches the light-permeable touch panel  12 . The light-permeable touch panel  12  is laminated with the light-permeable display screen  13  by using an in-cell lamination technology or an on-cell lamination technology, thus effectively reducing a weight and a whole thickness of the display screen. In addition, since the light-permeable cover plate  11  is arranged on the light-permeable touch panel  12 , the light-permeable touch panel  12  and its internal structures can be protected, thus preventing the light-permeable touch panel  12  from being damaged directly by an external force. 
     As illustrated in  FIGS. 5 to 6B and 18  or in  FIGS. 7 to 8B and 18 , in some embodiments, the manufacturing method  30  for the electronic device  100  further includes an action in a following block. 
     In block S 305 , a coating layer  14  is coated at the first window region  1320 . The coating layer  14  covers the emitter  1611 , and the emitter  1611  is configured to emit the infrared light through the coating layer  14  and the first window region  1320 . 
     In some embodiments, the black matrix area  1312  is usually printed with black ink for light shield, such that the other elements and metal wires located below the light-permeable display screen  13  are invisible. Since the emitter  1611  is located in the first window region  1320  of the black matrix area  1312 , in order to ensure normal operations of the emitter  1611 , the first window region  1320  of the black matrix area  1312  is not printed with the black ink, while the coating layer  14  which has characteristics of blocking the visible light and allowing the infrared light to pass therethrough needs to be coated at the first window region  1320 . Thus, in a direction in which the optical sensor  16  is stacked with the light-permeable display screen  13 , an area of an orthographic projection of the coating layer  14  in the first window region  1320  covers an area of an orthographic projection of the emitter  1611  in the first window region  1320 , such that the coating layer  14  can shield the emitter  1611  fully without affecting the emitter  1611  in emitting the infrared light normally, thus achieving an effect that the emitter  1611  is invisible when the electronic device  100  is observed from outside. The coating layer  14  may use an infrared (IR) ink. Since the IR ink has a low light transmittance for the visible light, the emitter  1611  arranged below the coating layer  14  cannot be seen via a visual sense based on human eyes, when the electronic device  100  is observed from outside. Also, since the IR ink further has a high light transmittance for the infrared light, the emitter  1611  can emit the infrared light stably, thus ensuring the normal operations of the emitter  1611 . 
     As illustrated in  FIGS. 5 to 6B and 19  or in  FIGS. 7 to 8B and 19 , in some embodiments, the manufacturing method  30  for the electronic device  100  further includes an action in a following block. 
     In block S 306 , a second window region  1330  is provided in the display area  1311 , and the receiver  1612  is arranged opposite to the second window region  1330 . 
     In some embodiments, the receiver  1612  may be arranged in the second window region  1330  of the display area  1311 . Since the second window region  1330  needs to allow the infrared light and the visible light to pass therethrough, the ink or other coatings need not to be coated at the second window region  1330 . 
     As illustrated in  FIGS. 9, 10 and 20  or in  FIGS. 11, 12 and 20 , in some embodiments, the manufacturing method  30  for the electronic device  100  further includes an action in a following block. 
     In block S 307 , a second window region  1330  is provided in the black matrix area  1312 , and the receiver  1612  is arranged opposite to the second window region  1330 . 
     In some embodiments, the receiver  1612  may be arranged in the second window region  1330  of the black matrix area  1312 . Since the second window region  1330  needs to allow the infrared light and the visible light to pass therethrough, the ink or other coatings need not to be coated at the second window region  1330 . 
     As illustrated in  FIGS. 13A and 21  or in  FIGS. 13B and 21 , in some embodiments, the manufacturing method  30  for the electronic device  100  further includes an action in a following block. 
     In block S 308 , a buffer layer  17  is coupled to the second surface  132 , and the buffer layer  17  covers the second surface  132 . 
     In some embodiments, the buffer layer  17  is configured to buffer an impact force and hence to be quakeproof, so as to protect the light-permeable touch panel and the light-permeable display screen as well as their internal structures, thus preventing the display screen from being damaged by an external impact effect. The buffer layer  17  may be made of foam, foamed plastics, rubber or other soft materials. Certainly, these buffer materials are merely exemplary, and embodiments of the present disclosure are not limited to this. In addition, in order to prevent the buffer layer  17  from blocking the signal reception of the receiver  1612 , the receiver  1612  is avoided in a process of providing the buffer layer  17 , such that the receiver  1612  will not be affected in receiving the infrared light. 
     As illustrated in  FIGS. 14A and 22  or in  FIGS. 14B and 22 , furthermore, in some embodiments, the manufacturing method  30  for the electronic device  100  further includes an action in a following block. 
     In block S 309 , a metal sheet  18  is provided below the buffer layer  17 , and the metal sheet  18  covers the buffer layer  17 . 
     In some embodiments, the metal sheet  18  is configured for shielding electromagnetic interferences and also for grounding, and further has a function of diffusing a temperature rise. The metal sheet  18  may be formed by cutting metal materials such as a copper foil and an aluminum foil. Certainly, these metal materials are merely exemplary, and embodiments of the present disclosure are not limited to this. In addition, in order to prevent the metal sheet  18  from blocking the signal reception of the receiver  1612 , the receiver  1612  is avoided in a process of providing the metal sheet  18 , such that the receiver  1612  is not affected in receiving the infrared light. 
     In the description of the present disclosure, a structure in which a first feature is “on” or “beneath” a second feature may include an embodiment in which the first feature directly contacts the second feature, and may also include an embodiment in which an additional feature is formed between the first feature and the second feature so that the first feature does not directly contact the second feature, unless otherwise specified. Furthermore, a first feature “on,” “above,” or “on top of” a second feature may include an embodiment in which the first feature is right “on,” “above,” or “on top of” the second feature, and may also include an embodiment in which the first feature is not right “on,” “above,” or “on top of” the second feature, or just means that the first feature has a sea level elevation larger than the sea level elevation of the second feature. While first feature “beneath,” “below,” or “on bottom of” a second feature may include an embodiment in which the first feature is right “beneath,” “below,” or “on bottom of” the second feature, and may also include an embodiment in which the first feature is not right “beneath,” “below,” or “on bottom of” the second feature, or just means that the first feature has a sea level elevation smaller than the sea level elevation of the second feature. 
     The following disclosure provides many different embodiments or examples to realize different structures of the present disclosure. To simplify the disclosure of the present disclosure, components and configurations in particular examples are elaborated. Of course, they are illustrative, and are not intended to limit the present disclosure. Moreover, reference numbers and/or letters may be repeated in different examples of the present disclosure for the purpose of simplicity and clarity, which shall not be constructed to indicate the relationships among various embodiments and/or configurations. In addition, the present disclosure provides examples of various specific processes and materials, but applicability of other processes and/or utilization of other materials are conceivable for those skilled in the art. 
     In the specification, it is to be understood that terms such as “upper,” “lower,” “front,” “rear,” “top,” “bottom,” should be construed to refer to the orientation as then described or as shown in the drawings under discussion. These relative terms are for convenience of description and do not require that the present disclosure be constructed or operated in a particular orientation. In addition, terms such as “first” and “second” are used herein for purposes of description and are not intended to indicate or imply relative importance or significance and are not intended to implicitly indicate the number of the technical feature mentioned. Thus, features limited by “first” and “second” are intended to indicate or imply including one or more than one these features. In the description of the present disclosure, “a plurality of” means two or more than two, unless specified otherwise. 
     In the present disclosure, unless specified or limited otherwise, the terms “mounted,” “connected,” “coupled” and the like are used broadly, and may be, for example, fixed connections, detachable connections, or integral connections; may also be mechanical or electrical connections; may also be direct connections or indirect connections via intervening structures; may also be inner communications of two elements or interaction relationships between two elements. The above terms can be understood by those skilled in the art according to specific situations. 
     Reference throughout this specification to “an embodiment,” “some embodiments,” “one embodiment,” “another example,” “an example,” “a specific examples” or “some examples” means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. Thus, the appearances of such phrases in various places throughout this specification are not necessarily referring to the same embodiment or example of the present disclosure. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. 
     Although explanatory embodiments have been shown and described, it would be appreciated by those skilled in the art that the above embodiments cannot be construed to limit the present disclosure, and changes, alternatives, and modifications can be made in the embodiments without departing from spirit, principles and scope of the present disclosure.