CN108461044A - Electronic device and its manufacturing method - Google Patents

Abstract

The invention discloses an electronic device and a manufacturing method. The electronic device includes a light-transmitting display screen, a first coating layer and an infrared sensor. Wherein, the light-transmitting display screen includes an upper surface and a lower surface opposite to the upper surface, and the light-transmitting display screen is used for displaying light through the upper surface. The first coating layer is coated on the lower surface and covers the infrared sensor arranged opposite to the lower surface, the first coating layer is used for transmitting infrared light and intercepting visible light, and the infrared sensor is used for transmitting the first coating layer and light-transmitting display The screen emits and/or receives infrared light. The electronic device and manufacturing method of the present invention can arrange the infrared sensor under the light-transmitting display screen in the case of a full screen, and the light-transmitting display screen and the infrared sensor can realize their respective functions without mutual interference. In addition, a coating layer is applied to the lower surface to block the infrared sensor, ensuring the appearance consistency of the full screen without affecting the operation of the infrared sensor.

Description

Electronic device and manufacturing method thereof

technical field

The invention relates to the field of electronic technology, in particular to an electronic device and a manufacturing method.

Background technique

Generally, an electronic device such as a mobile phone includes components such as a display screen and an infrared sensor, and the infrared sensor can be used to detect the distance between an object outside the display screen and the display screen. With the development of mobile phone technology and the needs of users, full-screen mobile phones have become the development trend of mobile phones, but the current position of sensors such as infrared sensors makes the screen-to-body ratio of mobile phones small. Therefore, how to allocate the positions of each sensor on the full-screen has become an urgent problem to be solved.

Contents of the invention

In order to solve the above technical problems, embodiments of the present invention provide an electronic device and a manufacturing method.

An electronic device according to an embodiment of the present invention includes:

A light-transmitting display screen, the light-transmitting display screen includes an upper surface and a lower surface opposite to the upper surface, and the light-transmitting display screen is used for displaying light through the upper surface;

an infrared sensor disposed opposite the lower surface; and

A first coating layer coated on the lower surface and covering the infrared sensor, the first coating layer is used to transmit infrared light and intercept visible light, and the infrared sensor is used to transmit through the first coating The cloth layer and the light-transmitting display screen emit and/or receive infrared light.

In some embodiments, the orthographic projection of the infrared sensor on the lower surface is located within the orthographic projection of the first coating layer on the lower surface.

In some embodiments, the orthographic projection of the infrared sensor on the lower surface coincides with the first coating layer.

Further, in such an embodiment, the electronic device further includes a light-shielding layer disposed on the lower surface and surrounding the infrared sensor.

In some embodiments, the infrared sensor includes a proximity sensor, the proximity sensor includes an emitter and a receiver, and the emitter is used to emit infrared light through the first coating layer and the light-transmitting display screen , the receiver is used to receive the infrared light reflected by the object to detect the distance between the object and the electronic device.

In some embodiments, the first coating layer includes IR ink, the transmittance of the IR ink to infrared light is greater than 85%, the transmittance of the IR ink to visible light is less than 6%, and the transmittance of the IR ink to visible light is less than 6%. The wavelength of the infrared light that the ink can pass through is 850nm-940nm.

In some embodiments, the electronic device further includes a second coating layer coated on the lower surface and in contact with the first coating layer.

Further, in such an embodiment, the second coating layer includes black ink, and the transmittance of the black ink to visible light and to infrared light is both less than 3%.

In some embodiments, the light-transmitting display screen includes an OLED display screen.

In some embodiments, the electronic device further includes a light-transmitting touch panel and a light-transmitting cover formed on the light-transmitting touch panel, and the light-transmitting touch panel is arranged on the light-transmitting display screen In addition, the upper surface faces the light-transmitting touch panel, and the light transmittance of the light-transmitting cover plate and the light-transmitting touch panel to visible light and infrared light are both greater than 90%.

Further, in such an embodiment, the lower surface includes a display area and a frame area surrounding the display area, and the light-transmitting display screen is used for displaying light through the display area; the display area and the display area The area ratio of the transparent cover plate is greater than 90%.

Further, in such an embodiment, the orthographic projection of the infrared sensor on the lower surface is located in the display area and/or the frame area.

In some embodiments, the electronic device further includes a buffer layer covering the lower surface and avoiding the infrared sensor.

Further, in such an implementation manner, the electronic device further includes a metal sheet covering the buffer layer and avoiding the infrared sensor.

The method for manufacturing an electronic device according to an embodiment of the present invention includes the steps of:

A light-transmitting display screen is provided, the light-transmitting display screen includes an upper surface and a lower surface opposite to the upper surface, and the light-transmitting display screen is used for displaying light through the upper surface;

coating the lower surface with a first coating layer for transmitting infrared light and intercepting visible light; and

An infrared sensor is provided, and the light-transmitting display screen with the first coating layer is covered on the infrared sensor, wherein the first coating layer covers the infrared sensor, and the infrared light transmission The sensor is used to transmit and/or receive infrared light through the first coating layer and the light-transmitting display screen.

In some embodiments, the manufacturing method also includes the steps of:

setting a transparent touch panel on the light-transmitting display screen; and

A light-transmitting cover plate is arranged on the light-transmitting touch panel panel.

In some embodiments, the manufacturing method also includes the steps of:

A second coating layer is coated on the lower surface, and the second coating layer is in contact with the first coating layer.

In some embodiments, the manufacturing method also includes the steps of:

A buffer layer is arranged on the lower surface, and the buffer layer covers the lower surface and avoids the infrared sensor.

Further, in such an embodiment, the manufacturing method further includes the steps of:

A metal sheet is provided, the metal sheet covers the buffer layer and avoids the infrared sensor.

In the electronic device and manufacturing method of the embodiment of the present invention, the infrared sensor can be placed under the light-transmitting display screen under the condition of a full screen by using the light-transmitting display screen, which avoids the traditional opening operation and ensures the overall strength of the frame area of the electronic device reliability, and further increase the screen-to-body ratio of the electronic device. By coating the lower surface with a coating layer, since the coating layer intercepts visible light through infrared light, the infrared sensor can be blocked without affecting the operation of the infrared sensor, thereby maintaining the consistency of the appearance of the full screen.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a three-dimensional schematic diagram of an electronic device of the present invention;

Figure 2 is a schematic cross-sectional view of some embodiments of the present invention;

Figure 3 is a schematic cross-sectional view of some embodiments of the present invention;

Fig. 4 is a three-dimensional schematic diagram of the light-transmitting display screen of the present invention;

5A to 5F are enlarged schematic diagrams at V in FIG. 4 of the present invention;

Figure 6 is a schematic cross-sectional view of some embodiments of the present invention;

Figure 7 is a schematic cross-sectional view of some embodiments of the present invention;

8A and 8B are schematic cross-sectional views of certain embodiments of the present invention;

9A and 9B are schematic cross-sectional views of certain embodiments of the present invention;

10A and 10B are schematic cross-sectional views of the electronic device of the present invention;

Figure 11 is a schematic cross-sectional view of some embodiments of the present invention;

Fig. 12 is a schematic flow chart of the manufacturing method of the present invention;

Figure 13 is a schematic flow diagram of the manufacturing method of some embodiments of the present invention;

Figure 14 is a schematic flow diagram of a manufacturing method in some embodiments of the present invention;

Figure 15 is a schematic flow diagram of a manufacturing method of certain embodiments of the present invention; and

Fig. 16 is a further schematic flow diagram of Fig. 15 in the present invention.

Explanation of main component symbols: light-transmitting cover plate 11, light-transmitting touch panel 12, light-transmitting display screen 13, first coating layer 14, second coating layer 15, infrared sensor 16, light-shielding layer 17, buffer layer 18, Metal sheet 19 , housing 20 , electronic device 100 , upper surface 131 , lower surface 132 , display area 1311 , frame area 1312 , transmitter 1611 , receiver 1612 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

An electronic device, such as a mobile phone or a tablet computer, generally detects a distance between the electronic device and a user by installing an infrared sensor. Taking a mobile phone as an example, an infrared sensor is provided on the upper area of the mobile phone. When the user makes a voice call or related operations, the mobile phone is close to the head, and the infrared sensor feeds back the distance information to the processor, and the processor executes corresponding instructions, such as turning off the lights of the display components. In related technologies, installing infrared sensors on electronic equipment requires opening corresponding holes on the casing for transmitting and receiving infrared light signals. come higher. Mobile phones have been developing towards full-screen mobile phones, and full-screen mobile phones form an ultra-narrow bezel between the casing and the display assembly. Because the width of the ultra-narrow bezel is too small, there may not be enough space to open a hole, even if the hole is opened. As a result, the strength of the frame as a whole is reduced, thereby lowering the reliability of the electronic device.

Please refer to FIG. 1 , an electronic device 100 according to an embodiment of the present invention may be a mobile phone or a tablet computer or the like. The electronic device 100 in the embodiment of the present invention is described by taking a mobile phone as an example. Of course, the specific form of the electronic device 100 may also be other, which is not limited here.

Please refer to FIG. 2 , the electronic device 100 includes a light-transmitting display screen 13 , an infrared sensor 16 , a first coating layer 14 and a casing 20 .

Wherein, the light-transmitting display screen 13 includes an upper surface 131 and a lower surface 132 , the upper surface 131 and the lower surface 132 are disposed opposite to each other, and the light-transmitting display screen 13 is used for displaying light through the upper surface 131 . The infrared sensor 16 is opposite to the lower surface 132 . The first coating layer 14 is coated on the lower surface 132 and covers the infrared sensor 16 . The first coating layer 14 is used to transmit infrared light and intercept visible light, and the infrared sensor 16 is used to transmit and/or receive infrared light through the first coating layer 14 and the translucent display screen 13 . The infrared sensor 16 can be disposed at any position under the lower surface 132 . The first coating layer 14 can use IR ink, because the IR ink has the characteristics of low light transmittance to visible light, so when viewing the electronic device 100 from the outside, based on the vision of the human eye, it is not possible to detect the ink placed on the first coating layer 14. The infrared sensor 16 under. At the same time, since the IR ink has the characteristics of high transmittance to infrared light, the infrared sensor 16 can stably emit and receive infrared light, ensuring the normal operation of the infrared sensor 16 .

The infrared sensor 16 includes a transmitter 1611 and a receiver 1612. The transmitter 1611 is used to emit infrared light. When the emitted infrared light encounters an obstacle in the detection direction, a part of the infrared light will be reflected back and received by the receiver 1612. The processor calculates the time from when the infrared light is emitted to when it is reflected back, so as to determine the distance between the electronic device 100 and the obstacle and make corresponding adjustments. When the user is answering or making a phone call, the electronic device 100 is close to the head, the emitter 1611 emits infrared light, and the receiver 1612 receives the reflected infrared light. After the processor calculates the time from the emission to the reflection of the infrared light, it emits The corresponding instruction controls the screen to turn off the backlight, and when the electronic device 100 is far away from the head, the processor performs calculations again based on the fed back data and issues an instruction to turn on the screen backlight again. In this way, not only the misoperation of the user is prevented, but also the power of the mobile phone is saved.

The housing 20 is used to accommodate components and components for protection. By setting the housing 20 to surround the elements and components, direct damage to these elements by external factors is avoided. The housing 20 can be formed by machining aluminum alloy with a CNC machine tool, or can be injection-molded with polycarbonate (PC) or PC+ABS material.

To sum up, in the electronic device 100 according to the embodiment of the present invention, the infrared sensor 16 can be placed under the light-transmitting display screen 13 in the case of a full screen by using the light-transmitting display screen 13, which avoids the traditional opening operation and ensures that the electronic The reliability of the overall strength of the frame area of the device 100 is improved, and the screen-to-body ratio of the electronic device 100 is further improved. By coating the first coating layer 14 on the lower surface 132, since the first coating layer 14 intercepts visible light through infrared light, the infrared sensor 16 can be blocked without affecting the operation of the infrared sensor 16, thereby maintaining the appearance of the full screen. consistency.

In some embodiments, the light-transmitting display screen 13 includes an OLED display screen.

Specifically, an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display screen has good light transmittance, and can pass visible light and infrared light. Therefore, the OLED display does not affect the emission and reception of infrared light by the infrared sensor when displaying content effects. The light-transmitting display screen 13 may also adopt a Micro LED display screen, which also has good light transmittance to visible light and infrared light. Of course, these display screens are only exemplary and the embodiments of the present invention are not limited thereto.

Please refer to FIG. 3 , in some embodiments, the electronic device 100 further includes a light-transmitting cover 11 and a light-transmitting touch panel 12 . The light-transmitting cover plate 11 is formed on the light-transmitting touch panel 12, the light-transmitting touch panel 12 is arranged on the light-transmitting display screen 13, the upper surface 131 of the light-transmitting display screen 13 faces the light-transmitting touch panel 12, and the light-transmitting cover Both the visible light transmittance and the infrared light transmittance of the board 11 and the light-transmitting touch panel 12 are greater than 90%.

Specifically, the light-transmitting touch panel 12 is mainly used to receive the input signal generated when the user touches the light-transmitting touch panel 12 and transmit it to the circuit board for data processing, so as to obtain the specific information of the user touching the light-transmitting touch panel 12. Location. Wherein, In-Cell or On-Cell bonding technology can be used to bond the light-transmitting touch panel 12 and the light-transmitting display screen 13 , which can effectively reduce the weight of the display screen and reduce the overall thickness of the display screen. In addition, the light-transmitting cover plate 11 is arranged on the light-transmitting touch panel 12, which can effectively protect the light-transmitting touch panel 12 and its internal structure, and avoid external force from affecting the light-transmitting touch panel 12 and the light-transmitting display screen. 13 damage. The light transmittance of the light-transmitting cover plate 11 and the light-transmitting touch panel 12 to visible light and infrared light is greater than 90%, which not only helps the light-transmitting display screen 13 to better display the content effect, but also facilitates setting it on the light-transmitting display screen. The infrared sensor 16 under the screen 13 emits and receives infrared light stably, which ensures the normal operation of the infrared sensor 16

Please refer to FIG. 4. In some embodiments, the lower surface 132 includes a display area 1311 and a frame area 1312. The frame area 1312 surrounds the display area 1311. The light-transmitting display screen 13 is used for displaying light through the display area 1311. The display area The area ratio of 1311 to the transparent cover plate 11 is greater than 90%.

Specifically, by setting the ratio of the display area 1311 to the light-transmitting cover 11, after the light-transmitting display screen 13 is pasted by the light-transmitting cover 11, the display area 1311 can display the content effect with a larger size area, which not only improves This not only ensures a good user experience, but also effectively increases the screen-to-body ratio of the electronic device 100 to achieve a full-screen effect. The frame area 1312 can also be used to cover other components and metal lines located under the light-transmitting display screen 13, so that the appearance of the product remains consistent. The frame area can enhance the optical density of the display screen by printing ink, which can create a good visual effect while ensuring the shading effect.

Referring to FIG. 5A to FIG. 5F , in some embodiments, the orthographic projection of the infrared sensor 16 on the lower surface 132 is located in the display area 1311 and/or the frame area 1312 .

Specifically, the infrared sensor 16 may be entirely located in the display area 1311 or entirely in the frame area 1312 , or may be located in both the display area 1311 and the frame area 1312 . In this way, multiple options for placing the infrared sensor 16 not only help the electronic device 100 to be able to use various shapes of the infrared sensor 16 , but also facilitate the infrared sensor 16 to provide possible positions for other components in the electronic device 100 . Wherein, the infrared sensor 16 can set the transmitter 1611 and the receiver 1612 integrally, that is, the transmitter 1611 and the receiver 1612 can be set in the display area 1311 or in the frame area 1312 at the same time. The transmitter 1611 and the receiver can also be set separately, that is, the transmitter 1611 is set in the display area 1311 , and the receiver 1612 is set in the frame area 1312 . Alternatively, the receiver 1612 is set in the display area 1311 , and the transmitter 1611 is set in the frame area 1312 .

Referring to FIG. 3 , in some embodiments, the orthographic projection of the infrared sensor 16 on the lower surface 132 is located within the orthographic projection of the first coating layer 14 on the lower surface 132 .

Specifically, during the assembly process, the installation of the infrared sensor 16 usually requires an assembly gap to be reserved, resulting in a gap between the infrared sensor 16 and other components, allowing visible light to enter through the gap, resulting in light leakage. Therefore, in the direction in which the infrared sensor 16 and the light-transmitting display screen 13 are laminated, the area of the orthographic projection of the first coating layer 14 on the lower surface 132 is greater than the area of the orthographic projection of the infrared sensor 16 on the lower surface 132, which can be achieved without affecting the infrared sensor. When the electronic device 16 works normally, the first coating layer 14 can fully cover the infrared sensor 16 , so that the infrared sensor 16 cannot be seen when the electronic device 100 is viewed from the outside.

Please refer to FIG. 6 , in some embodiments, the orthographic projection of the infrared sensor 16 on the lower surface 132 coincides with the first coating layer 14 .

Specifically, in the stacking direction of the infrared sensor 16 and the translucent display screen 13 , the area of the first coating layer 14 orthographic projection on the lower surface 132 may also be set to be equal to the area of the infrared sensor 16 orthographic projection on the lower surface 132 . In this way, the first coating layer 14 can just block the infrared sensor 16 without affecting the normal operation of the infrared sensor 16, so that when the electronic device 100 is viewed from a direction facing and perpendicular to the upper surface 131 of the light-transmitting display screen 13, The effect that the infrared sensor 16 is invisible is achieved.

Please refer to FIG. 7 , further, in such an embodiment, the electronic device 100 further includes a light-shielding layer 17 disposed on the lower surface 132 and surrounding the infrared sensor 16 .

Specifically, when the area of the front projection of the first coating layer 14 on the lower surface 132 is equal to the area of the infrared sensor 16 on the lower surface 132, since the volume of the space where the infrared sensor 16 is placed is larger than the volume of the infrared sensor 16 Large, resulting in light leakage in the space around the infrared sensor 16 when the electronic device 100 is viewed from the external environment. Therefore, by setting the light-shielding layer 17 surrounding the infrared sensor 16 to fill the gap between the infrared sensor 16 and the surrounding space, this light leakage phenomenon can be eliminated. The light-shielding layer 17 can be foam made of black material, or other black foam plastics or rubber. Of course, these materials are only exemplary and the embodiments of the present invention are not limited thereto.

In some embodiments, the infrared sensor 16 includes a proximity sensor, and the proximity sensor includes a transmitter 1611 and a receiver 1612, the transmitter 1611 is used to transmit infrared light through the first coating layer 14 and the light-transmitting display screen 13, and the receiver 1612 is used for receiving the infrared light emitted by the object to detect the distance between the object and the electronic device 100 .

Specifically, when the user is answering or making a call, the electronic device 100 is close to the head, the transmitter 1611 emits infrared light, the receiver 1612 receives the reflected infrared light, and the processor calculates the time from the emission of the infrared light to the reflection back, and then Send corresponding instructions to control the screen to turn off the backlight. When the electronic device 100 is far away from the head, the processor performs calculations again based on the fed back data and sends an instruction to turn on the screen backlight again. In this way, not only the misoperation of the user is prevented, but also the power of the mobile phone is saved.

In some embodiments, the first coating layer 14 includes IR ink, the transmittance of IR ink to infrared light is greater than 85%, the transmittance to visible light is less than 6%, and the wavelength of infrared light that IR ink can transmit 850nm-940nm.

Specifically, since the IR ink has low transmittance to visible light, when the electronic device 100 is viewed from the outside, the infrared sensor 16 disposed under the first coating layer 14 cannot be observed based on human vision. At the same time, since the IR ink has the characteristics of high transmittance to infrared light, the infrared sensor 16 can stably emit and receive infrared light, ensuring the normal operation of the infrared sensor 16 .

Referring to FIG. 8A or FIG. 8B , in some embodiments, the electronic device 100 further includes a second coating layer 15 coated on the lower surface 132 and in contact with the first coating layer 14 .

Specifically, the first coating layer 14 is mainly used to transmit infrared light and block the infrared sensor 16, but because the cost of the IR ink used in the first coating layer 14 is higher than that of ordinary black ink, if the lower surface 132 is completely coated IR ink will not be conducive to reducing production costs, and the light transmittance of ordinary black ink to visible light can be lower than that of IR ink, and the blocking effect is more prominent. In this way, by providing the second coating layer 15, not only is it beneficial to reduce the production cost, but also the shielding effect is more in line with the technical requirements.

In some embodiments, the second coating layer 15 includes black ink, and the transmittance of the black ink to visible light and infrared light is both less than 3%.

Specifically, on the one hand, black ink has a lower transmittance to visible light than IR ink, and the blocking effect is more obvious, which is more in line with the process requirements. On the other hand, the cost of black ink is lower than that of IR ink, which is beneficial to reduce production costs.

Referring to FIG. 9A or FIG. 9B , in some embodiments, the electronic device 100 further includes a buffer layer 18 covering the lower surface 132 and avoiding the infrared sensor 16 .

Specifically, the buffer layer 18 is used to reduce impact force and shockproof to protect the light-transmitting touch panel 12 and the light-transmitting display screen 13 and their internal structures, preventing the display screens from being damaged by external impact. The buffer layer 18 can be made of foam or foam plastic or rubber or other soft materials. Of course, these cushioning materials are only exemplary and the embodiments of the present invention are not limited thereto. In addition, avoiding the infrared sensor 16 during the process of setting the buffer layer 18 is to prevent the buffer layer 18 from covering the infrared sensor 16, so as to prevent the infrared sensor 16 from being affected during the process of emitting and receiving infrared light.

Please refer to FIG. 10A or FIG. 10B , further, in such an embodiment, the electronic device 100 further includes a metal sheet 19 covering the buffer layer 18 and avoiding the infrared sensor 16 .

Specifically, the metal sheet 19 is used for shielding electromagnetic interference and grounding, and has the effect of diffusing temperature rise. The metal sheet 19 can be cut from metal materials such as copper foil and aluminum foil. Of course, these metal materials are only exemplary and the embodiments of the present invention are not limited thereto. In addition, avoiding the infrared sensor 16 during the process of setting the metal sheet 19 is to prevent the metal sheet 19 from covering the infrared sensor 16, so as to prevent the infrared sensor 16 from being affected during the process of emitting and receiving infrared light.

Referring to FIG. 2 or FIG. 11 and FIG. 12 , an embodiment of the present invention provides a manufacturing method 30 of an electronic device 100, including the following steps:

S301, providing a light-transmitting display screen 13, the light-transmitting display screen 13 has an upper surface 131 and a lower surface 132 opposite to the upper surface 131, and the light-transmitting display screen 13 is used for displaying light through the upper surface 131;

S302, coating the first coating layer 14 on the lower surface 132, the first coating layer 14 is used to transmit infrared light and intercept visible light; and

S303, provide an infrared sensor 16 again, and cover the light-transmitting display screen 13 with the first coating layer 14 on the infrared sensor 16 . Wherein, the first coating layer 14 covers the infrared sensor 16 , and the infrared sensor is used to transmit and/or receive infrared light through the first coating layer 14 and the light-transmitting display screen 13 .

Specifically, by using the light-transmitting display screen 13, the infrared sensor 16 can be arranged under the light-transmitting display screen 13 in the case of a full screen, avoiding the traditional opening operation, and ensuring the reliability of the overall strength of the frame area of the electronic device 100, Moreover, the screen-to-body ratio of the electronic device 100 is further improved. By coating the first coating layer 14 on the lower surface 132, since the first coating layer 14 intercepts visible light through infrared light, the infrared sensor 16 can be blocked without affecting the operation of the infrared sensor 16, thereby maintaining the appearance of the full screen. consistency. The light-transmitting display screen 13 may be an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display screen. The OLED display screen has good light transmittance and can pass visible light and infrared light. Therefore, the OLED display does not affect the emission and reception of infrared light by the infrared sensor when displaying content effects. The light-transmitting display screen 13 may also adopt a Micro LED display screen, and the Micro LED display screen also has good light transmittance to visible light and infrared light. Of course, these display screens are only exemplary and the embodiments of the present invention are not limited thereto. In addition, the upper surface 131 of the light-transmitting display screen 13 is used to transmit visible light to display content effects on the one hand, and is used to transmit and receive infrared light by the infrared sensor 16 on the other hand.

Referring to FIG. 8A or FIG. 8B and FIG. 13, in some embodiments, the manufacturing method 30 of the electronic device 100 further includes the steps of:

S304, setting the light-transmitting touch panel 12 on the light-transmitting display screen 13; and

S305, disposing a light-transmitting cover plate 11 on the light-transmitting touch panel panel.

Specifically, the light-transmitting touch panel 12 is mainly used to receive the input signal generated when the user touches the light-transmitting touch panel 12 and transmit it to the circuit board for data processing, so as to obtain the specific information of the user touching the light-transmitting touch panel 12. Location. Wherein, In-Cell or On-Cell bonding technology can be used to bond the light-transmitting touch panel 12 and the light-transmitting display screen 13 , which can effectively reduce the weight of the display screen and reduce the overall thickness of the display screen. In addition, disposing the light-transmitting cover plate 11 on the light-transmitting touch panel 12 can protect the light-transmitting touch panel 12 and its internal structure, and avoid direct damage to the light-transmitting touch panel 12 caused by external forces.

Referring to FIG. 8A or FIG. 8B and FIG. 14, in some embodiments, the manufacturing method 30 of the electronic device 100 further includes the steps of:

S306 , coating the second coating layer 15 in contact with the first coating layer 14 on the lower surface 132 .

Specifically, the first coating layer 14 is mainly used to transmit infrared light and block the infrared sensor 16, but because the first coating layer 14 generally uses IR ink, the cost of IR ink is higher than that of ordinary black ink, if the lower surface 132 Coating all IR inks will not be conducive to reducing production costs, and the light transmittance of ordinary black inks to visible light can be lower than that of IR inks, and the blocking effect is more prominent. In this way, by providing the second coating layer 15, not only is it beneficial to reduce the production cost, but also the shielding effect is more in line with the technical requirements.

Referring to FIG. 9A or FIG. 9B and FIG. 15, in some embodiments, the manufacturing method 30 of the electronic device 100 further includes the steps of:

S307 , disposing the buffer layer 18 on the lower surface 132 , the buffer layer 18 covers the lower surface 132 and avoids the infrared sensor 16 .

Specifically, the buffer layer 18 is used to reduce impact force and shockproof to protect the light-transmitting touch panel, the light-transmitting display screen and their internal structures, and prevent the display screen from being damaged by external impact. The buffer layer 18 can be made of foam or foam plastic or rubber or other soft materials. Of course, these cushioning materials are only exemplary and the embodiments of the present invention are not limited thereto. In addition, avoiding the infrared sensor 16 during the process of setting the buffer layer 18 is to prevent the buffer layer 18 from covering the infrared sensor 16, so as to prevent the infrared sensor 16 from being affected during the process of emitting and receiving infrared light.

Please refer to FIG. 10A or FIG. 10B and FIG. 15 , further, in such an embodiment, step S307 also includes the steps of:

S3071, disposing the metal sheet 19 under the buffer layer 18, the metal sheet 19 covers the buffer layer 18 and avoids the infrared sensor 16.

Specifically, the metal sheet 19 is used for shielding electromagnetic interference and grounding, and has a function of diffusing temperature rise. The metal sheet 19 can be cut from metal materials such as copper foil and aluminum foil. Of course, these metal materials are only exemplary and the embodiments of the present invention are not limited thereto. In addition, avoiding the infrared sensor 16 during the process of setting the metal sheet 19 is to prevent the metal sheet 19 from covering the infrared sensor 16, so as to prevent the infrared sensor 16 from being affected during the process of emitting and receiving infrared light.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described above. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. connected, or integrally connected. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" etc. mean that the embodiments are combined A specific feature, structure, material, or characteristic described or exemplified is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (19)

1. An electronic device, characterized in that, comprising: A light-transmitting display screen, the light-transmitting display screen includes an upper surface and a lower surface opposite to the upper surface, and the light-transmitting display screen is used for displaying light through the upper surface; an infrared sensor disposed opposite the lower surface; and A first coating layer coated on the lower surface and covering the infrared sensor, the first coating layer is used to transmit infrared light and intercept visible light, and the infrared sensor is used to transmit through the first coating The cloth layer and the light-transmitting display screen emit and/or receive infrared light. 2. The electronic device according to claim 1, wherein the orthographic projection of the infrared sensor on the lower surface is located within the orthographic projection of the first coating layer on the lower surface. 3. The electronic device according to claim 1, wherein the orthographic projection of the infrared sensor on the lower surface coincides with the first coating layer. 4. The electronic device according to claim 3, further comprising a light-shielding layer disposed on the lower surface and surrounding the infrared sensor. 5. The electronic device according to claim 1, wherein the infrared sensor comprises a proximity sensor, the proximity sensor comprises a transmitter and a receiver, and the transmitter is used to transmit through the first coating layer and The light-transmitting display screen emits infrared light, and the receiver is used for receiving the infrared light reflected by an object to detect the distance between the object and the electronic device. 6. The electronic device according to claim 1, wherein the first coating layer comprises IR ink, the transmittance of the IR ink to infrared light is greater than 85%, and the transmittance of the IR ink to visible light The light rate is less than 6%, and the wavelength of infrared light that the IR ink can transmit is 850nm-940nm. 7. The electronic device according to claim 1, further comprising a second coating layer coated on the lower surface and in contact with the first coating layer. 8. The electronic device according to claim 7, wherein the second coating layer comprises black ink, and the transmittance of the black ink to visible light and to infrared light is both less than 3%. 9. The electronic device according to claim 1, wherein the light-transmitting display screen comprises an OLED display screen. 10. The electronic device according to claim 1, further comprising a light-transmitting touch panel and a light-transmitting cover formed on the light-transmitting touch panel, and the light-transmitting touch panel is arranged on the On the light-transmitting display screen, the upper surface faces the light-transmitting touch panel, and the light transmittance of the light-transmitting cover plate and the light-transmitting touch panel to visible light and infrared light are greater than 90%. . 11. The electronic device according to claim 10, wherein the lower surface comprises a display area and a frame area surrounding the display area, and the light-transmitting display screen is used for displaying light through the display area, The area ratio of the display area to the light-transmitting cover plate is greater than 90%. 12. The electronic device according to claim 11, wherein the orthographic projection of the infrared sensor on the upper surface is located in the display area and/or the frame area. 13. The electronic device according to claim 1, further comprising a buffer layer covering the lower surface and avoiding the infrared sensor. 14. The electronic device according to claim 13, further comprising a metal sheet covering the buffer layer and avoiding the infrared sensor. 15. A method for manufacturing an electronic device, comprising the steps of: A light-transmitting display screen is provided, the light-transmitting display screen includes an upper surface and a lower surface opposite to the upper surface, and the light-transmitting display screen is used for displaying light through the upper surface; coating the lower surface with a first coating layer for transmitting infrared light and intercepting visible light; and An infrared sensor is provided, and the light-transmitting display screen with the first coating layer is covered on the infrared sensor, wherein the first coating layer covers the infrared sensor, and the infrared sensor is used Emitting and/or receiving infrared light through the first coating layer and the light-transmitting display screen. 16. The manufacturing method according to claim 15, characterized in that, the manufacturing method further comprises the steps of: setting a light-transmitting touch panel on the light-transmitting display screen; and A light-transmitting cover plate is arranged on the light-transmitting touch panel panel. 17. The manufacturing method according to claim 15, characterized in that, the manufacturing method further comprises the step of: coating a second coating layer on the lower surface, and the second coating layer is the same as the first coating layer. The cloth layers are connected. 18. The manufacturing method according to claim 15, further comprising the step of: setting a buffer layer on the lower surface, the buffer layer covering the lower surface and avoiding the infrared sensor. 19. The manufacturing method according to claim 18, further comprising the steps of: A metal sheet is provided, the metal sheet covers the buffer layer and avoids the infrared sensor.