WO2019170122A1 - Light-transmissive display screen, electronic device and manufacturing method therefor - Google Patents

Abstract

An electronic device (100). The electronic device (100) comprises a light-transmissive display screen (13), a first coating layer (14), and an infrared sensor (16). The light-transmissive display screen (13) comprises an upper surface (131) and a lower surface (132) opposite the upper surface (131), and the light-transmissive display screen (13) is used for displaying by emitting light through the upper surface (131). The first coating layer (14) is disposed on the lower surface (132) and covers the infrared sensor (16) arranged opposite the lower surface, the first coating layer (14) is used for allowing infrared light to pass through and intercepting visible light, and the infrared sensor (16) is used for transmitting and/or receiving infrared light through the first coating layer (14) and the light-transmissive display screen (13).

Description

Transparent display screen, electronic device and manufacturing method thereof

Priority information

The present application claims priority to and the benefit of the patent application No. 201101193191.6, filed on Jan.

Technical field

The present application relates to the field of electronic technologies, and in particular, to a transparent display screen, an electronic device, and a method of fabricating the same.

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 position of sensors such as infrared sensors makes the screen of mobile phones relatively small. Therefore, how to allocate the positions of each sensor on the comprehensive screen It has become an urgent problem to be solved.

Summary of the invention

Embodiments of the present application provide a light transmissive display, an electronic device, and a method of fabricating the same.

The transparent display screen of the embodiment of the present invention is used for an electronic device, comprising: an upper surface; a lower surface opposite to the upper surface, wherein the transparent display screen emits light through the upper surface, the electronic device An infrared sensor is disposed opposite to the lower surface; a first coating layer, the first coating layer is coated on the lower surface and covers the infrared sensor, and the first coating layer is used to make infrared light The infrared sensor is configured to transmit and/or receive infrared light through the first coating layer and the transparent display screen by transmitting and intercepting visible light.

The electronic device of the embodiment of the present application includes:

a transparent display screen, comprising: an upper surface and a lower surface opposite to the upper surface, wherein the transparent display screen is configured to emit 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 for transmitting infrared light and intercepting visible light, and the infrared sensor is configured to transmit the first coating layer The cloth layer and the light transmissive display screen emit and/or receive infrared light.

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

Providing a transparent display screen, the transparent display screen having an upper surface and a lower surface opposite to the upper surface, wherein the transparent display screen is configured to emit light through the upper surface;

Coating a first coating layer on the lower surface, the first coating layer for transmitting infrared light and intercepting visible light; and

Providing an infrared sensor covering the infrared light sensor with the first coating layer, wherein the first coating layer covers the infrared sensor, and the infrared sensor is used Infrared light is emitted and/or received through the first coating layer and the transparent display screen.

Additional aspects and advantages of the present invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from

1 is a perspective view 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;

4 is a perspective view of a transparent display screen of the present invention;

5A to 5F are enlarged schematic views of a portion 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 an electronic device of the present invention;

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

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

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

14 is a schematic flow chart of a manufacturing method of some embodiments of the present invention;

15 is a schematic flow chart of a manufacturing method of some embodiments of the present invention; and

Figure 16 is a schematic flow chart of the further flow of Figure 15 of the present invention.

The main component symbol description: the transparent cover 11 , the transparent touch panel 12 , the transparent display 13 , the first coating layer 14 , the second coating layer 15 , the infrared sensor 16 , the light shielding layer 17 , the buffer layer 18 , The metal piece 19, the housing 20, the electronic device 100, the upper surface 131, the lower surface 132, the display area 1311, the bezel area 1312, the emitter 1611, and the receiver 1612.

Detailed ways

The embodiments of the present application are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are intended to be illustrative, and are not to be construed as limiting.

In the description of the present application, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise specifically defined and defined. Connected, or integrally connected; may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship. The specific meanings of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

In the present application, the first feature "on" the second feature may include direct contact of the first and second features, and may also include that the first and second features are not in direct contact but are contacted by additional features between them. .

Electronic devices, such as mobile phones or tablets, generally detect the distance between the electronic device and the user by installing an infrared sensor. Taking a mobile phone as an example, an infrared sensor is provided in an upper area of the mobile phone. When the user makes a voice call or related operation, the mobile phone approaches the head, and the infrared sensor feeds the distance information to the processor, and the processor executes corresponding instructions, such as turning off the light of the display component. In the related art, setting an infrared sensor on an electronic device requires opening a corresponding hole in the casing for transmitting and receiving infrared light signals, but with the development of electronic devices, people are increasingly demanding the appearance and operation experience of the mobile phone. The higher. The mobile phone has been developed in the direction of a full screen, and the full screen mobile phone forms an ultra-narrow bezel between the casing and the display assembly. Since the width of the ultra-narrow bezel is too small, there may not be enough space to open the hole, even if the opening will result in The overall strength of the frame is reduced, which in turn makes the reliability of the electronic device low.

Referring to FIG. 1, the electronic device 100 of the embodiment of the present invention may be a mobile phone or a tablet computer or the like. The electronic device 100 of 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 be other, and is not limited herein.

Referring to FIG. 2, the electronic device 100 includes a transparent display screen 13, an infrared sensor 16, a first coating layer 14, and a housing 20.

The transparent display screen 13 includes an upper surface 131 and a lower surface 132. The upper surface 131 is disposed opposite to the lower surface 132, and the transparent display screen 13 is configured to emit light through the upper surface 131. The infrared sensor 16 is disposed opposite 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 for transmitting infrared light and intercepting visible light, and the infrared sensor 16 is for transmitting and/or receiving infrared light through the first coating layer 14 and the transparent display screen 13. The infrared sensor 16 can be disposed at any position below the lower surface 132. The first coating layer 14 may employ an IR ink. Since the IR ink has a characteristic of low transmittance to visible light, when the electronic device 100 is viewed from the outside, the human eye-based vision cannot be perceived to be disposed on the first coating layer 14 . Under the infrared sensor 16. 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, and the normal operation of the infrared sensor 16 is ensured.

The infrared sensor 16 includes a transmitter 1611 and a receiver 1612. The emitter 1611 is configured to emit infrared light. When the emitted infrared light encounters an obstacle in the detection direction, a part of the infrared light is reflected and received by the receiver 1612. The processor calculates the time from the emission of the infrared light to the reflection, and determines the distance between the electronic device 100 and the obstacle and makes corresponding adjustments. When the user answers or makes a call, the electronic device 100 approaches the head, the transmitter 1611 emits infrared light, and the receiver 1612 receives the reflected infrared light, and the processor calculates the time when the infrared light is emitted from the reflection to the reflection, and then sends out The corresponding command control screen turns off the backlight. When the electronic device 100 is away from the head, the processor again calculates and issues an instruction according to the feedback data, and then re-opens the screen backlight. In this way, not only the user's misoperation is prevented, but also the power of the mobile phone is saved.

The housing 20 is used to house components and components for protection. By arranging the housing 20 to enclose the components and components, external factors are prevented from causing direct damage to these components. The housing 20 can be formed by machining an aluminum alloy by a CNC machine tool, or can be injection molded from a polycarbonate (PC) or a PC+ABS material.

In summary, the electronic device 100 of the embodiment of the present invention can use the transparent display 13 to set the infrared sensor 16 under the transparent display 13 in the case of a full screen, thereby avoiding the traditional opening operation and ensuring the electronic The reliability of the overall strength of the frame region of the device 100 is further improved by the screen ratio of the electronic device 100. By applying the first coating layer 14 on the lower surface 132, since the first coating layer 14 intercepts visible light by infrared light, the infrared sensor 16 can be shielded without affecting the operation of the infrared sensor 16, thereby maintaining the overall screen appearance. consistency.

In some embodiments, the light transmissive display 13 includes an OLED display.

Specifically, an Organic Light-Emitting Diode (OLED) display screen has good light transmittance and is capable of passing visible light and infrared light. Therefore, the OLED display does not affect the infrared sensor to emit and receive infrared light in the case of displaying the content effect. The transparent display 13 can also adopt a Micro LED display, which also has good light transmittance for visible light and infrared light. Of course, these displays are merely exemplary and embodiments of the invention are not limited thereto.

Referring to FIG. 3 , in some embodiments, the electronic device 100 further includes a transparent cover 11 and a transparent touch panel 12 . The transparent cover 11 is formed on the transparent touch panel 12, and the transparent touch panel 12 is disposed on the transparent display 13. The upper surface 131 of the transparent display 13 faces the transparent touch panel 12, and the transparent cover Both the board 11 and the transparent touch panel 12 have a visible light transmittance and an infrared light transmittance of more than 90%.

Specifically, the transparent touch panel 12 is mainly used to receive an input signal generated by the user when the transparent touch panel 12 is touched and transmitted to the circuit board for data processing, thereby obtaining a specific touch of the transparent touch panel 12 by the user. position. The In-Cell or On-Cell bonding technology can be used to laminate the transparent touch panel 12 and the transparent display panel 13, thereby effectively reducing the weight of the display and reducing the overall thickness of the display. In addition, the transparent cover 11 is disposed on the transparent touch panel 12, which can effectively protect the transparent touch panel 12 and its internal structure, and avoid external force on the transparent touch panel 12 and the transparent display. 13 damage. The transmittances of the transparent cover 11 and the transparent touch panel 12 for visible light and infrared light are both greater than 90%, which not only facilitates the transparent display 13 to better display the content effect, but also facilitates setting in the transparent display. The infrared sensor 16 under the screen 13 stably emits and receives infrared light, which ensures the normal operation of the infrared sensor 16.

Referring 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 transparent display 13 is used to display the area through the display area 1311. The ratio of the area of 1311 to the transparent cover 11 is greater than 90%.

Specifically, after the transparent display panel 13 is pasted through the transparent cover 11 by setting the ratio of the display area 1311 and the transparent cover 11, the display area 1311 can display the content effect in a larger size area, which is not only improved. A good user experience, and also effectively increase the screen ratio of the electronic device 100, to achieve a full screen effect. The bezel area 1312 can also be used to block other components and metal lines under the light transmissive display 13 to maintain a consistent appearance. The border area can enhance the optical density of the display by printing ink, which also creates a good visual effect while ensuring the shading effect.

Referring to FIGS. 5A-5F, in some embodiments, the orthographic projection of infrared sensor 16 at lower surface 132 is within display area 1311 and/or bezel area 1312.

Specifically, the infrared sensor 16 may be located entirely within the display area 1311 or entirely within the bezel area 1312, or may be located within the display area 1311 and within the bezel area 1312. As such, various options for the placement of the infrared sensor 16 not only facilitate the electronic device 100 to be able to apply the various shapes of the infrared sensor 16, but also facilitate the infrared sensor 16 to provide possible locations for other components in the electronic device 100. The infrared sensor 16 can integrally set the transmitter 1611 and the receiver 1612, that is, the transmitter 1611 and the receiver 1612 are simultaneously disposed in the display area 1311 or simultaneously disposed in the frame area 1312. The transmitter 1611 and the receiver may also be provided separately, that is, the transmitter 1611 is disposed in the display area 1311, and the receiver 1612 is disposed in the bezel area 1312. Alternatively, the receiver 1612 is disposed in the display area 1311, and the transmitter 1611 is disposed in the bezel area 1312.

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

Specifically, the installation of the infrared sensor 16 during the process assembly process usually requires the assembly gap to be reserved, resulting in a gap between the infrared sensor 16 and other components, so that visible light enters from the gap, and light leakage occurs. Therefore, in the direction in which the infrared sensor 16 and the transparent display screen 13 are stacked, the area of the orthographic projection of the first coating layer 14 on the lower surface 132 is larger than the area of the orthographic projection of the infrared sensor 16 on the lower surface 132, which can affect the infrared sensor. In the case of normal operation, the first coating layer 14 is shielded from the infrared sensor 16 so that the infrared sensor 16 is invisible when the electronic device 100 is viewed from the outside.

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

Specifically, in the direction in which the infrared sensor 16 and the transparent display screen 13 are stacked, the area in which the first coating layer 14 is projected onto the lower surface 132 may be equal to the area in which the infrared sensor 16 is projected on the lower surface 132. In this way, the first coating layer 14 can be shielded from the infrared sensor 16 without affecting the normal operation of the infrared sensor 16, so that when the electronic device 100 is viewed from the direction toward and perpendicular to the upper surface 131 of the transparent display screen 13, The invisible effect of the infrared sensor 16 is achieved.

Referring 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 where the first coating layer 14 is projected onto the lower surface 132 is equal to the case where the infrared sensor 16 is projected onto the area of the lower surface 132, since the volume of the space in which the infrared sensor 16 is placed is larger than the volume of the infrared sensor 16 Large, causing light leakage around the space around the infrared sensor 16 when the electronic device 100 is viewed from the external environment. Therefore, by providing the light shielding layer 17 surrounding the infrared sensor 16, the gap between the infrared sensor 16 and the surrounding space is filled, and the light leakage phenomenon can be eliminated. The light shielding layer 17 may be a foam made of a black material, or may be other black foam or rubber. Of course, these materials are merely exemplary and embodiments of the invention are not limited thereto.

In some embodiments, the infrared sensor 16 includes a proximity sensor that includes a transmitter 1611 and a receiver 1612 for transmitting infrared light through the first coating layer 14 and the light transmissive display 13, the receiver The 1612 is configured to receive infrared light emitted by the object to detect a distance between the object and the electronic device 100.

Specifically, when the user answers or makes a call, the electronic device 100 approaches the head, the transmitter 1611 emits infrared light, the receiver 1612 receives the reflected infrared light, and the processor calculates the time when the infrared light is emitted from the reflection to the reflection. The corresponding command is sent to control the screen to turn off the backlight. When the electronic device 100 is away from the head, the processor again calculates and issues an instruction according to the feedback data, and then turns on the screen backlight. In this way, not only the user's misoperation is prevented, but also the power of the mobile phone is saved.

In some embodiments, the first coating layer 14 comprises an IR ink having an IR transmittance of greater than 85% for infrared light, a transmittance of less than 6% for visible light, and a wavelength of infrared light transparent to the IR ink. It is 850 nm to 940 nm.

Specifically, since the IR ink has a characteristic of low light 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 is not visually observed based on the human eye. 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, and the normal operation of the infrared sensor 16 is ensured.

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 contacting 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 since the cost of the IR ink used by the first coating layer 14 is higher than that of the ordinary black ink, if the lower surface 132 is entirely coated The IR ink will not be conducive to reducing the production cost, and the ordinary black ink can achieve lower transmittance to visible light than the IR ink, and the shielding effect is more prominent. Thus, by providing the second coating layer 15, it is not only advantageous to reduce the production cost, but also the shielding effect is more in line with the process requirements.

In some embodiments, the second coating layer 15 comprises a black ink, and the black ink has a transmittance to visible light and a transmittance of infrared light of less than 3%.

Specifically, on the one hand, the black ink has a lower transmittance to visible light than the IR ink, and the shielding effect is more obvious, which is more in line with the process requirements. On the other hand, the black ink has a lower cost than the IR ink, which is advantageous for reducing the production cost.

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 evading the infrared sensor 16 .

Specifically, the buffer layer 18 is used to mitigate the impact force and shockproof to protect the transparent touch panel 12 and the transparent display screen 13 and the internal structure thereof, thereby preventing the display screen from being damaged by external impact. The buffer layer 18 can be made of foam or foam or rubber or other soft material. Of course, these cushioning materials are merely exemplary and embodiments of the invention are not limited thereto. Furthermore, the infrared sensor 16 is avoided during the provision of the buffer layer 18 in order to prevent the buffer layer 18 from blocking the infrared sensor 16 from being affected by the infrared sensor 16 in the process of transmitting and receiving infrared light.

Referring 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 evading the infrared sensor 16 .

Specifically, the metal piece 19 is used to shield electromagnetic interference and grounding, and has a function of diffusing temperature rise. The metal piece 19 can be cut from a metal material such as copper foil or aluminum foil. Of course, these metallic materials are merely exemplary and the embodiments of the present invention are not limited thereto. Further, the infrared sensor 16 is avoided in the process of disposing the metal piece 19 in order to prevent the metal piece 19 from blocking the infrared sensor 16, so that the infrared sensor 16 is not affected in the process of transmitting and receiving infrared light.

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

S301, a transparent display 13 is provided. The transparent display 13 has an upper surface 131 and a lower surface 132 opposite to the upper surface 131. The transparent display 13 is configured to emit light through the upper surface 131.

S302, coating a first coating layer 14 on the lower surface 132, the first coating layer 14 for transmitting infrared light and intercepting visible light;

S303, an infrared sensor 16 is further provided, and the transparent display 13 with the first coating layer 14 is covered on the infrared sensor 16. The first coating layer 14 covers the infrared sensor 16 for transmitting and/or receiving infrared light through the first coating layer 14 and the transparent display screen 13.

Specifically, the transparent display 13 can be used to set the infrared sensor 16 under the transparent display 13 in the case of a full screen, thereby avoiding the traditional opening operation and ensuring the reliability of the overall strength of the frame region of the electronic device 100. Moreover, the screen ratio of the electronic device 100 is further improved. By applying the first coating layer 14 on the lower surface 132, since the first coating layer 14 intercepts visible light by infrared light, the infrared sensor 16 can be shielded without affecting the operation of the infrared sensor 16, thereby maintaining the overall screen appearance. consistency. The transparent display screen 13 can be an Organic Light-Emitting Diode (OLED) display screen, and the OLED display screen has good light transmittance and can pass visible light and infrared light. Therefore, the OLED display does not affect the infrared sensor to emit and receive infrared light in the case of displaying the effect of the content. The transparent display 13 can also adopt a Micro LED display, which also has good light transmittance for visible light and infrared light. Of course, these displays are merely exemplary and embodiments of the invention are not limited thereto. Further, the upper surface 131 of the light-transmitting display panel 13 serves to transmit the content effect through the visible light, and on the other hand, the infrared sensor 16 transmits and receives the infrared light normally through the infrared light.

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, a transparent touch panel 12 is disposed on the transparent display 13; and

S305, a transparent cover 11 is disposed on the transparent touch panel.

Specifically, the transparent touch panel 12 is mainly used to receive an input signal generated by the user when the transparent touch panel 12 is touched and transmitted to the circuit board for data processing, thereby obtaining a specific touch of the transparent touch panel 12 by the user. position. The In-Cell or On-Cell bonding technology can be used to laminate the transparent touch panel 12 and the transparent display panel 13, thereby effectively reducing the weight of the display and reducing the overall thickness of the display. In addition, the transparent cover panel 11 is disposed on the transparent touch panel 12 to protect the transparent touch panel 12 and its internal structure, thereby avoiding direct damage to the transparent 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 following steps:

S306, applying a second coating layer 15 that is 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 since the first coating layer 14 generally uses IR ink, the cost of the IR ink is higher than that of the ordinary black ink. Coating all of the IR inks will not be conducive to reducing the production cost, and the ordinary black ink can achieve lower transmittance to visible light than the IR ink, and the shielding effect is more prominent. Thus, by providing the second coating layer 15, it is not only advantageous to reduce the production cost, but also the shielding effect is more in line with the process 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 following steps:

S307, a buffer layer 18 is disposed on the lower surface 132, and the buffer layer 18 covers the lower surface 132 and evades the infrared sensor 16.

Specifically, the buffer layer 18 is used for mitigating impact force and shockproof to protect the transparent touch panel and the transparent display screen and the internal structure thereof, thereby preventing the display screen from being damaged by external impact. The buffer layer 18 can be made of foam or foam or rubber or other soft material. Of course, these cushioning materials are merely exemplary and embodiments of the invention are not limited thereto. Furthermore, the infrared sensor 16 is avoided during the provision of the buffer layer 18 in order to prevent the buffer layer 18 from blocking the infrared sensor 16 from being affected by the infrared sensor 16 in the process of transmitting and receiving infrared light.

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

S3071, a metal piece 19 is disposed under the buffer layer 18, and the metal piece 19 covers the buffer layer 18 and evades the infrared sensor 16.

Specifically, the metal piece 19 is used for shielding electromagnetic interference and grounding, and has a function of diffusing temperature rise. The metal piece 19 can be cut by using a metal material such as copper foil or aluminum foil. Of course, these metallic materials are merely exemplary and the embodiments of the present invention are not limited thereto. Further, the infrared sensor 16 is avoided in the process of disposing the metal piece 19 in order to prevent the metal piece 19 from blocking the infrared sensor 16, so that the infrared sensor 16 is not affected in the process of transmitting and receiving infrared light.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. The specific features, structures, materials, or characteristics described in the embodiments or examples are included in at least one embodiment or example of the application. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art The scope of the present application is defined by the claims and their equivalents.

Claims (20)

A transparent display for an electronic device, comprising: Upper surface a lower surface opposite to the upper surface, the transparent display screen is illuminated through the upper surface, and an infrared sensor of the electronic device is disposed opposite to the lower surface; a first coating layer coated on the lower surface and covering the infrared sensor, the first coating layer for transmitting and intercepting infrared light, the infrared sensor Infrared light is emitted and/or received through the first coating layer and the transparent display screen. A light transmissive display screen according to claim 1 wherein an orthographic projection of said infrared sensor at said lower surface is within an orthographic projection of said first coating layer on said lower surface. A light transmissive display screen according to claim 1, wherein said electronic device further comprises a second coating layer coated on said lower surface and in contact with said first coating layer. An electronic device, comprising: a transparent display screen, comprising: an upper surface and a lower surface opposite to the upper surface, wherein the transparent display screen is configured to emit 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 for transmitting infrared light and intercepting visible light, and the infrared sensor is configured to transmit the first coating layer The cloth layer and the light transmissive display screen emit and/or receive infrared light. The electronic device of claim 4 wherein the orthographic projection of the infrared sensor at the lower surface is within an orthographic projection of the first coating layer on the lower surface. The electronic device of claim 4 wherein the orthographic projection of the infrared sensor on the lower surface coincides with the first coating layer. The electronic device of claim 6, wherein the electronic device further comprises a light shielding layer disposed on the lower surface and surrounding the infrared sensor. The electronic device according to claim 4, wherein said first coating layer comprises an IR ink, said IR ink has a transmittance to infrared light of greater than 85%, and said IR ink has a transmittance to visible light. Less than 6%, the IR ink permeable infrared light has a wavelength of 850 nm to 940 nm. The electronic device of claim 4, further comprising a second coating layer coated on the lower surface and in contact with the first coating layer. The electronic device according to claim 9, wherein the second coating layer comprises a black ink, and the black ink has a transmittance for visible light and a transmittance for infrared light of less than 3%. The electronic device of claim 4, wherein the electronic device further comprises a transparent touch panel and a transparent cover plate formed on the transparent touch panel, wherein the transparent touch panel is disposed On the transparent display screen, the upper surface faces the transparent touch panel, and the translucent cover and the transparent touch panel have a transmittance for visible light and a transmittance for infrared light. More than 90%. The electronic device according to claim 11, wherein the lower surface comprises a display area and a frame area surrounding the display area, and the transparent display screen is configured to emit light through the display area, The ratio of the area of the display area to the area of the transparent cover is greater than 90%. The electronic device of claim 12 wherein an orthographic projection of said infrared sensor on said upper surface is within said display area and/or said bezel area. The electronic device of claim 4, wherein the electronic device further comprises a buffer layer covering the lower surface and evading the infrared sensor. The electronic device according to claim 14, wherein said electronic device further comprises a metal piece covering said buffer layer and evading said infrared sensor. A method of manufacturing an electronic device, comprising the steps of: Providing a transparent display screen, the transparent display screen having an upper surface and a lower surface opposite to the upper surface, wherein the transparent display screen is configured to emit light through the upper surface; Coating a first coating layer on the lower surface, the first coating layer for transmitting infrared light and intercepting visible light; and Providing an infrared sensor covering the infrared light sensor with the first coating layer, wherein the first coating layer covers the infrared sensor, and the infrared sensor is used Infrared light is emitted and/or received through the first coating layer and the transparent display screen. The manufacturing method according to claim 16, wherein said manufacturing method further comprises the steps of: Providing a transparent touch panel on the transparent display screen; and A transparent cover plate is disposed on the transparent touch panel. The manufacturing method according to claim 16, wherein said manufacturing method further comprises 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. The manufacturing method according to claim 16, wherein said manufacturing method further comprises the step of: A buffer layer is disposed on the lower surface, the buffer layer covering the lower surface and evading the infrared sensor. The manufacturing method according to claim 19, wherein said manufacturing method further comprises the steps of: A metal sheet is provided that covers the buffer layer and circumvents the infrared sensor.

Images