CN108810195B - Electronic device and method of manufacturing the same - Google Patents
Electronic device and method of manufacturing the same Download PDFInfo
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- CN108810195B CN108810195B CN201810217882.5A CN201810217882A CN108810195B CN 108810195 B CN108810195 B CN 108810195B CN 201810217882 A CN201810217882 A CN 201810217882A CN 108810195 B CN108810195 B CN 108810195B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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Abstract
本发明公开了一种电子装置及其制造方法。电子装置包括透光显示屏和红外传感器。其中，透光显示屏包括上表面和与上表面相背的下表面，透光显示屏用于透过上表面发光显示。红外传感器相对下表面设置，红外传感器用于透过透光显示屏发射和/或接收波长大于2000nm的红外光。本发明的电子装置及其制造方法可以在全面屏的情况下将红外传感器设置在透光显示屏下方，避免了传统的开孔操作，保证电子装置整体强度的可靠性，而且还进一步地提高电子装置的屏占比。同时红外传感器通过发射波长大于2000nm的红外光能够明显减弱对透光显示屏板造成闪烁的影响。
The invention discloses an electronic device and a manufacturing method thereof. The electronics include a light-transmitting display screen 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 light-emitting display through the upper surface. The infrared sensor is disposed relative to the lower surface, and the infrared sensor is used to transmit and/or receive infrared light with a wavelength greater than 2000 nm through the light-transmitting display screen. The electronic device and its manufacturing method of the present invention can set the infrared sensor under the light-transmitting display screen under the condition of full screen, avoid the traditional opening operation, ensure the reliability of the overall strength of the electronic device, and further improve the electronic device. The screen-to-body ratio of the device. At the same time, the infrared sensor can significantly reduce the effect of flicker on the light-transmitting display panel by emitting infrared light with a wavelength greater than 2000 nm.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to an electronic device and a method for manufacturing the same.
Background
Generally, an electronic device such as a mobile phone includes a display screen and an infrared sensor, and the infrared sensor can be used to detect a distance between an object outside the display screen and the display screen. With the development of mobile phone technology and the demand of users, a full-screen mobile phone becomes the development trend of the mobile phone, but the screen occupation ratio of the mobile phone is smaller due to the positions of the current infrared sensors and other sensors, so that how to allocate the positions of the sensors on the full-screen becomes a difficult problem to be solved urgently.
Disclosure of Invention
To solve the above technical problems, embodiments of the present invention provide an electronic device and a method for manufacturing the same.
An electronic device according to an embodiment of the present invention includes:
the light-transmitting display screen comprises an upper surface and a lower surface opposite to the upper surface, and the light-transmitting display screen is used for emitting light through the upper surface to display; and
and the infrared sensor is arranged opposite to the lower surface and used for transmitting and/or receiving infrared light through the light-transmitting display screen, and the wavelength of the infrared light is greater than 2000 nm.
In some embodiments, the electronic device further comprises a first coating layer coated on the lower surface and covering the infrared sensor, the first coating layer being configured to transmit infrared light and intercept visible light, and the infrared sensor being configured to transmit and/or receive infrared light through the first coating layer and the light-transmissive display screen.
In certain embodiments, an orthographic projection of the infrared sensor on the lower surface is within an orthographic projection of the first coating layer on the lower surface.
In certain embodiments, an orthographic projection of the infrared sensor on the lower surface coincides with the first coating layer.
Further, in such embodiments, 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 comprises a proximity sensor comprising an emitter for emitting infrared light through the first coating layer and the light transmissive display screen and a receiver for receiving infrared light reflected by an object to detect a distance of the object from the electronic device.
In certain embodiments, the first coating layer comprises an IR ink having a transmittance of greater than 85% for infrared light, a transmittance of less than 6% for visible light, and a wavelength of infrared light that is transparent to the IR ink of 2000nm or greater.
In some embodiments, the electronic device further comprises a second coating layer coated on the lower surface and contiguous with the first coating layer.
Further, in such embodiments, the second coating layer includes a black ink having a light transmittance to visible light and a light transmittance to infrared light of less than 3%.
In some embodiments, the light transmissive display screen comprises an OLED display screen.
In some embodiments, the electronic device further includes a light-transmissive touch panel and a light-transmissive cover plate formed on the light-transmissive touch panel, the light-transmissive touch panel is disposed on the light-transmissive display screen, the upper surface faces the light-transmissive touch panel, and both the light transmittance of the light-transmissive cover plate and the light transmittance of the light-transmissive touch panel to visible light and the light transmittance of the light-transmissive touch panel to infrared light are greater than 90%.
Further, in such embodiments, the lower surface includes a display area and a bezel area surrounding the display area, and the light-transmissive display screen is configured to emit light for display through the display area; the ratio of the area of the display area to the area of the light-transmitting cover plate is greater than 90%.
Further, in such embodiments, the orthographic projection of the infrared sensor on the lower surface is located within the display area and/or the bezel area.
In some embodiments, the electronic device further includes a buffer layer covering the lower surface and avoiding the infrared sensor.
Further, in such embodiments, the electronic device further comprises 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:
providing a light-transmitting display screen, wherein the light-transmitting display screen comprises an upper surface and a lower surface opposite to the upper surface, and the light-transmitting display screen is used for emitting light through the upper surface to display; and
providing an infrared sensor, wherein the infrared sensor is arranged opposite to the lower surface, the infrared sensor is used for transmitting the light-transmitting display screen to emit and/or receive infrared light, and the wavelength of the infrared light is larger than 2000 nm.
In certain embodiments, the method of manufacturing further comprises the steps of:
and coating a first coating layer on the lower surface and covering the infrared sensor, wherein the first coating layer is used for transmitting infrared light and intercepting visible light, and the infrared sensor is used for transmitting and/or receiving infrared light through the first coating layer and the light-transmitting display screen.
In certain embodiments, the method of manufacturing further comprises the steps of:
and coating a second coating layer on the lower surface, wherein the second coating layer is connected with the first coating layer.
In certain embodiments, the method of manufacturing further comprises the steps of:
arranging a transparent touch panel on the light-transmitting display screen; and
and a light-transmitting cover plate is arranged on the light-transmitting touch panel.
In certain embodiments, the method of manufacturing further comprises the steps of:
and the lower surface is provided with a buffer layer which covers the lower surface and avoids the infrared sensor.
According to the electronic device and the manufacturing method thereof, the infrared sensor can be arranged below the light-transmitting display screen under the condition of a complete screen, the traditional hole opening operation is avoided, the reliability of the overall strength of the electronic device is ensured, and the screen occupation ratio of the electronic device is further improved. Meanwhile, the infrared sensor can obviously reduce the influence of flicker on the substrate of the light-transmitting display screen by emitting infrared light with the wavelength of more than 2000 nm.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a perspective view of an electronic device according to the present invention;
FIGS. 2A to 2C are schematic cross-sectional views of certain embodiments of the present invention;
FIG. 3 is a schematic cross-sectional view of certain embodiments of the present invention;
FIG. 4 is a schematic perspective view of a light-transmissive display panel of the present invention;
FIG. 5 is a schematic cross-sectional view of certain embodiments of the present invention;
FIGS. 6A-6F are enlarged schematic views at VI of FIG. 4 in accordance with the present invention;
FIG. 7 is a schematic cross-sectional view of certain embodiments of the present invention;
FIG. 8 is a schematic cross-sectional view of certain embodiments of the present invention;
FIGS. 9A and 9B are schematic cross-sectional views of certain embodiments of the present invention;
FIGS. 10A and 10B are schematic cross-sectional views of certain embodiments of the present invention;
FIGS. 11A and 11B are schematic cross-sectional views of electronic devices of the present invention;
FIG. 12 is a schematic flow chart of a method of manufacture of the present invention;
FIG. 13 is a schematic flow chart of a method of manufacture of certain embodiments of the present invention;
FIG. 14 is a further schematic flow diagram of FIG. 13 of the present invention;
FIG. 15 is a schematic flow chart of a method of manufacture of certain embodiments of the present invention;
FIG. 16 is a schematic flow chart of a method of manufacture of certain embodiments of the present invention; and
fig. 17 is a schematic flow diagram of a further flow of fig. 16 of the present invention.
Description of the main element symbols: the touch panel comprises a light-transmitting cover plate 11, a light-transmitting touch panel 12, a light-transmitting display screen 13, a first coating layer 14, a second coating layer 15, an infrared sensor 16, a light shielding layer 17, a buffer layer 18, a metal sheet 19, a shell 20, an electronic device 100, an upper surface 131, a lower surface 132, a display area 1311, a frame area 1312, a transmitter 1611 and a receiver 1612.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Electronic devices, such as mobile phones or tablet computers, generally have infrared sensors installed to detect the distance between the electronic device and a user. Taking a mobile phone as an example, an infrared sensor is arranged in the upper area of the mobile phone. When a user carries out voice call or related operation, the mobile phone is close to the head, the infrared sensor feeds distance information back to the processor, and the processor executes corresponding instructions, such as closing light of the display screen assembly. In the related art, the infrared sensor is disposed on the electronic device, and the corresponding hole is required to be formed in the housing for transmitting and receiving the infrared light signal, but with the rapid development of the electronic device, the requirements of people on the appearance and the operation experience of the mobile phone are higher and higher. The mobile phone is developed towards the full-screen mobile phone, the full-screen mobile phone forms an ultra-narrow frame between the casing and the display screen assembly, and due to the fact that the width of the ultra-narrow frame is too small, the ultra-narrow frame may not have enough space for opening holes, the overall strength of the frame is reduced even if the holes are formed, and therefore the reliability of the electronic equipment is low.
Referring to fig. 1, an electronic device 100 according to an embodiment of the invention may be a mobile phone or a tablet computer. The electronic device 100 according to the embodiment of the present invention is described by taking a mobile phone as an example, but it is to be understood that 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 light-transmissive display 13 and an infrared sensor 16.
The light-transmitting display 13 includes an upper surface 131 and a lower surface 132, the upper surface 131 and the lower surface 132 are opposite to each other, and the light-transmitting display 13 is configured to emit light through the upper surface 131 for display. The infrared sensor 16 is disposed opposite the lower surface 132, and the infrared sensor 16 may be disposed at any position below the lower surface 132. The infrared sensor 16 is used to transmit and/or receive infrared light having a wavelength greater than 2000nm through the light-transmissive display 13.
Due to the photoelectric effect, when the infrared sensor 16 emits infrared light, electrons in the transparent display 13 are excited by photons to form a current, thereby causing screen flicker. When the wavelength of the infrared light is more than 2000nm, the energy of the photons is lower, and the influence on the screen can be obviously reduced.
The infrared sensor 16 includes a transmitter 1611 and a receiver 1612, the transmitter 1611 is used for transmitting infrared light, when the transmitted infrared light meets an obstacle in the detection direction, a part of the infrared light is reflected back to be received by the receiver 1612, and the processor calculates the time from the transmission of the infrared light to the reflection of the infrared light, so that the distance between the electronic device 100 and the obstacle can be determined and corresponding adjustment can be made. When a user answers or makes a call, the electronic device 100 is close to the head, the emitter 1611 emits infrared light, the receiver 1612 receives the reflected infrared light, the processor calculates the time from the emission of the infrared light to the reflection of the infrared light, and then sends a corresponding instruction to control the screen to close the background light, and when the electronic device 100 is far away from the head, the processor calculates according to the fed back data again and sends an instruction to turn on the screen background light again. Therefore, misoperation of the user is prevented, and the electric quantity of the mobile phone is saved.
The housing 20 is used to house components and assemblies for protection. By providing the housing 20 to enclose the components and assemblies, direct damage to these components from external factors is avoided. The housing 20 may be formed by CNC machining of an aluminum alloy, or may be injection molded using Polycarbonate (PC) or PC + ABS material.
In summary, in the electronic device 100 according to the embodiment of the invention, the infrared sensor 16 can be disposed below the transparent display 13 under the condition of a full screen, thereby avoiding the conventional hole opening operation, ensuring the reliability of the overall strength of the electronic device 100, and further improving the screen occupation ratio of the electronic device 100. Meanwhile, the infrared sensor 16 can obviously reduce the influence of flicker on the substrate of the light-transmitting display screen by emitting infrared light with the wavelength of more than 2000 nm.
In some embodiments, the light transmissive display 13 comprises an OLED display.
In particular, an Organic Light-Emitting Diode (OLED) display screen has good Light transmittance and can pass visible Light and infrared Light. Therefore, the OLED display screen does not influence the infrared sensor to emit and receive infrared light under the condition of displaying the content effect. The light-transmitting display screen 13 may also be a Micro LED display screen, which also has good light transmittance for visible light and infrared light. Of course, these display screens are merely exemplary and embodiments of the present invention are not limited in this respect.
Referring to fig. 3, in some embodiments, the electronic device 100 further includes a light-transmissive cover 11 and a light-transmissive 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 disposed 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 plate 11 and the light-transmitting touch panel 12 have a visible light transmittance and an infrared light transmittance greater than 90%.
Specifically, the light-transmitting touch panel 12 is mainly used for receiving an input signal generated when a user touches the light-transmitting touch panel 12 and transmitting the input signal to the circuit board for data processing, so as to obtain a specific position where the user touches the light-transmitting touch panel 12. The light-transmitting touch panel 12 and the light-transmitting display screen 13 can be attached by adopting an In-Cell or On-Cell attaching technology, so that the weight of the display screen can be effectively reduced, and the overall thickness of the display screen can be reduced. In addition, the transparent cover 11 is disposed on the transparent touch panel 12, so as to effectively protect the transparent touch panel 12 and the internal structure thereof, and prevent the transparent touch panel 12 and the transparent display 13 from being damaged by external force. 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 is not only beneficial to the light-transmitting display screen 13 to better display the content effect, but also beneficial to the infrared sensor 16 arranged below the light-transmitting display screen 13 to stably emit and receive infrared light, and ensures the normal work of the infrared sensor 16.
Referring to fig. 4, in some embodiments, the bottom surface 132 includes a display region 1311 and a frame region 1312, the frame region 1312 surrounds the display region 1311, the light-transmissive display panel 13 is configured to emit light through the display region 1311 for display, and a ratio of an area of the display region 1311 to an area of the light-transmissive cover plate 11 is greater than 90%.
Specifically, by setting the proportion of the display area 1311 and the transparent cover plate 11, after the transparent display screen 13 is attached to the transparent cover plate 11, the display area 1311 can display the content effect in a large size area, which not only improves the user experience, but also effectively increases the screen occupation ratio of the electronic device 100. The bezel region 1312 can also be used to shield other components and metal traces underneath the light-transmissive display 13, so that the appearance of the product is consistent. The optical density of the display screen can be enhanced in the frame area in a printing ink mode, and a good visual effect is created while the shading effect is guaranteed.
Referring to fig. 5, in some embodiments, the electronic device 100 further includes a first coating layer 14 coated on the lower surface 132 and covering the infrared sensor 16, the first coating layer 14 is used for transmitting infrared light 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 transparent display 13.
Specifically, the first coating layer 14 is configured to transmit infrared light so as to ensure normal operation of the infrared sensor 16, and the first coating layer 14 intercepts visible light so as to achieve the effect that the infrared sensor 16 is not visible when the electronic device 100 is viewed from the outside.
Referring to fig. 6A-6F, in some embodiments, the orthographic projection of the infrared sensor 16 on the lower surface 132 is located within the display area 1311 and/or the border 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 both within the display area 1311 and within the bezel area 1312. As such, the various choices of placement of infrared sensor 16 may not only facilitate electronic device 100 being able to utilize infrared sensors 16 of various shapes, but may also facilitate infrared sensors 16 providing possible locations for other components in electronic device 100. The infrared sensor 16 may integrate the transmitter 1611 and the receiver 1612, that is, the transmitter 1611 and the receiver 1612 are disposed in the display area 1311 or the bezel area 1312 at the same time. The transmitter 1611 and the receiver may be separately disposed, 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 region 1311 and the transmitter 1611 is disposed in the bezel region 1312.
Referring to fig. 5, in some embodiments, the orthographic projection of infrared sensor 16 on lower surface 132 is within the orthographic projection of first coating layer 14 on lower surface 132.
Specifically, in the process of process assembly, an assembly gap is usually required to be reserved for installation of the infrared sensor 16, so that a gap occurs between the infrared sensor 16 and other elements, visible light enters from the gap, and a light leakage phenomenon occurs. Therefore, in the direction in which the infrared sensor 16 and the light-transmitting 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, so that the infrared sensor 16 can be fully shielded by the first coating layer 14 without affecting the normal operation of the infrared sensor 16, and the effect that the infrared sensor 16 is invisible when the electronic device 100 is viewed from the outside is achieved.
Referring to fig. 7, in some embodiments, an orthographic projection of the infrared sensor 16 on the lower surface 132 coincides with the first coating layer 14.
Specifically, in the direction in which the infrared sensor 16 and the light-transmitting display 13 are laminated, the area of the lower surface 132 onto which the first coating layer 14 is orthographically projected may also be set equal to the area of the lower surface 132 onto which the infrared sensor 16 is orthographically projected. Thus, under the condition that the normal operation of the infrared sensor 16 is not affected, the first coating layer 14 just covers the infrared sensor 16, and the effect that the infrared sensor 16 is invisible when the electronic device 100 is viewed from the direction towards and perpendicular to the upper surface 131 of the light-transmitting display screen 13 is achieved.
Referring to fig. 8, 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 lower surface 132 onto which the first coating layer 14 is disposed is equal to the area of the lower surface 132 onto which the infrared sensor 16 is projected, a light leakage phenomenon occurs in a space around the infrared sensor 16 when the electronic device 100 is viewed from the external environment due to the fact that the volume of the space in which the infrared sensor 16 is placed is larger than the volume of the infrared sensor 16. 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 this light leakage phenomenon can be eliminated. The light shielding layer 17 may be foam made of black material, or other black foam plastics or rubber. Of course, these materials are merely exemplary and embodiments of the present invention are not limited in this respect.
In some embodiments, infrared sensor 16 comprises a proximity sensor comprising an emitter 1611 and a receiver 1612, emitter 1611 for emitting infrared light through first coating layer 14 and light transmissive display 13, and receiver 1612 for receiving the infrared light emitted by the object to detect the distance of the object from electronic device 100.
Specifically, when the user is answering or making a call, the electronic device 100 is close to the head, the emitter 1611 emits infrared light, the receiver 1612 receives the reflected infrared light, the processor calculates the time from emitting to reflecting of the infrared light, and then sends a corresponding instruction to control the screen to close the background light, and when the electronic device 100 is far away from the head, the processor calculates again according to the fed back data and sends an instruction to re-open the screen background light. Therefore, misoperation of the user is prevented, and the electric quantity of the mobile phone is saved.
In certain embodiments, the first coating layer 14 comprises an IR ink having a transmittance of greater than 85% for infrared light and less than 6% for visible light, the IR ink being capable of transmitting infrared light having a wavelength of 2000nm or greater.
Specifically, since the IR ink has a characteristic of low transmittance to visible light, the infrared sensor 16 disposed under the first coating layer 14 is not observed based on the visual perception of human eyes when the electronic device 100 is viewed from the outside. Meanwhile, the IR ink has the characteristic of high light transmittance to infrared light, so that the infrared sensor 16 can stably emit and receive infrared light, and the normal work of the infrared sensor 16 is ensured.
Referring to fig. 9A or 9B, in some embodiments, the electronic device 100 further includes a second coating layer 15 coated on the lower surface 132 and connected to the first coating layer 14.
Specifically, the first coating layer 14 is mainly used for transmitting infrared light and blocking the infrared sensor 16, but since the cost of the IR ink used for the first coating layer 14 is higher than that of the ordinary black ink, it is not favorable to reduce the production cost if the lower surface 132 is entirely coated with the IR ink, and the ordinary black ink can achieve lower transmittance of visible light than the IR ink and more excellent blocking effect. Therefore, the second coating layer 15 is arranged, so that the production cost is reduced, and the shielding effect meets the process requirement.
In certain embodiments, the second coating layer 15 includes a black ink having a transmittance to visible light and a transmittance to infrared light of less than 3%.
Specifically, on one hand, the black ink has lower light transmittance to visible light and more obvious shielding effect compared with the IR ink, and meets the process requirements better. On the other hand, the black ink has lower cost than the IR ink, which is beneficial to reducing the production cost.
Referring to fig. 10A or 10B, in some embodiments, electronic device 100 further includes a buffer layer 18 covering lower surface 132 and avoiding infrared sensor 16.
Specifically, the buffer layer 18 is used to buffer impact and prevent shock so as to protect the light-transmitting touch panel 12, the light-transmitting display screen 13 and the internal structure thereof, and prevent the display screen from being damaged due to external impact. Cushioning layer 18 may be made of foam or rubber or other soft material. Of course, these cushioning materials are merely exemplary and embodiments of the present invention are not limited in this respect. In addition, avoiding the infrared sensor 16 during the process of disposing the buffer layer 18 is to prevent the buffer layer 18 from shielding the infrared sensor 16 from being affected during the process of emitting and receiving infrared light by the infrared sensor 16.
Referring to fig. 11A or fig. 11B, 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 a function of diffusing temperature rise. The metal sheet 19 may be cut out of a metal material such as copper foil or aluminum foil. Of course, these metal materials are merely exemplary and embodiments of the present invention are not limited thereto. In addition, avoiding the infrared sensor 16 during the process of disposing the metal sheet 19 is to prevent the metal sheet 19 from shielding the infrared sensor 16 from being affected during the process of emitting and receiving infrared light by the infrared sensor 16.
Referring to fig. 2A to 2C and fig. 12, a method 30 for manufacturing an electronic device 100 according to an embodiment of the present invention includes the following steps:
s301, providing a light-transmitting display 13, where the light-transmitting display 13 has an upper surface 131 and a lower surface 132 opposite to the upper surface 131, and the light-transmitting display 13 is configured to emit light through the upper surface 131 for display; and
s302, an infrared sensor 16 is provided, the infrared sensor 16 is disposed opposite to the lower surface 132, and the infrared sensor 16 is used for emitting and/or receiving infrared light with a wavelength greater than 2000nm through the light-transmitting display 13.
Specifically, the transparent display screen 13 is adopted to set the infrared sensor 16 below the transparent display screen 13 under the comprehensive screen condition, so that the traditional hole opening operation is avoided, the reliability of the overall strength of the frame area of the electronic device 100 is ensured, and the screen occupation ratio of the electronic device 100 is further improved. By applying the first coating layer 14 to the lower surface 132, the infrared sensor 16 can be shielded without affecting the operation of the infrared sensor 16 because the first coating layer 14 blocks visible light by passing infrared light, thereby maintaining the consistency of the overall screen appearance. The Light-transmitting display 13 may be an Organic Light-Emitting Diode (OLED) display, and the OLED display has good Light-transmitting property and can pass visible Light and infrared Light. Therefore, the OLED display screen does not influence the infrared sensor to emit and receive infrared light under the condition of displaying the content effect. The light-transmitting display screen 13 may also be a Micro LED display screen, which also has good light transmittance for visible light and infrared light. Of course, these display screens are merely exemplary and embodiments of the present invention are not limited in this respect. In addition, the upper surface 131 of the light-transmissive display 13 is used for displaying the content effect by transmitting visible light, and for transmitting infrared light so that the infrared sensor 16 normally emits and receives infrared light.
Referring to fig. 5, 7 and 13, in some embodiments, the method 30 for manufacturing the electronic device 100 further includes:
s303, a first coating layer 14 is coated on the lower surface 132 and covers the infrared sensor 16, the first coating layer 14 is used for transmitting infrared light 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-transmitting display 13.
Specifically, the first coating layer 14 is configured to transmit infrared light so as to ensure normal operation of the infrared sensor 16, and the first coating layer 14 intercepts visible light so as to achieve the effect that the infrared sensor 16 is not visible when the electronic device 100 is viewed from the outside.
Referring to fig. 9A, 9B and 14, further, in such an embodiment, step S303 further includes the steps of:
s3031, a second coating layer 15 is coated on the lower surface 132 in contact with the first coating layer 14.
Specifically, the first coating layer 14 is mainly used for transmitting infrared light and blocking 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, and if the lower surface 132 is entirely coated with the IR ink, it is not favorable to reduce the production cost, and the ordinary black ink can achieve lower transmittance of visible light and more excellent blocking effect than the IR ink. Therefore, the second coating layer 15 is arranged, so that the production cost is reduced, and the shielding effect meets the process requirement.
Referring to fig. 9A, 9B and 15, in some embodiments, the method 30 for manufacturing the electronic device 100 further includes:
s304, arranging a light-transmitting touch panel 12 on the light-transmitting display screen 13; and
s305, a transparent cover 11 is disposed on the transparent touch panel.
Specifically, the light-transmitting touch panel 12 is mainly used for receiving an input signal generated when a user touches the light-transmitting touch panel 12 and transmitting the input signal to the circuit board for data processing, so as to obtain a specific position where the user touches the light-transmitting touch panel 12. The light-transmitting touch panel 12 and the light-transmitting display screen 13 can be attached by adopting an In-Cell or On-Cell attaching technology, so that the weight of the display screen can be effectively reduced, and the overall thickness of the display screen can be reduced. In addition, the light-transmitting cover plate 11 is disposed on the light-transmitting touch panel 12, so as to protect the light-transmitting touch panel 12 and the internal structure thereof, and prevent the light-transmitting touch panel 12 from being directly damaged by external force.
Referring to fig. 10A, 10B and 16, in some embodiments, the method 30 for manufacturing the electronic device 100 further includes:
s306, the buffer layer 18 is disposed on the lower surface 132, and 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 and prevent shock to protect the light-transmitting touch panel, the light-transmitting display screen, and the internal structure thereof, and to prevent the display screen from being damaged due to external impact. Cushioning layer 18 may be made of foam or rubber or other soft material. Of course, these cushioning materials are merely exemplary and embodiments of the present invention are not limited in this respect. In addition, avoiding the infrared sensor 16 during the process of disposing the buffer layer 18 is to prevent the buffer layer 18 from shielding the infrared sensor 16 from being affected during the process of emitting and receiving infrared light by the infrared sensor 16.
Referring to fig. 11A, fig. 11B and fig. 17, further, in such an embodiment, step S307 further includes the steps of:
s3061, a metal sheet 19 is disposed under the buffer layer 18, and the metal sheet 19 covers the buffer layer 18 and is away from the infrared sensor 16.
Specifically, the metal sheet 19 is used for shielding electromagnetic interference and grounding, has a function of diffusing temperature rise, and can be cut from a metal material such as copper foil and aluminum foil. Of course, these metal materials are merely exemplary and embodiments of the present invention are not limited thereto. In addition, avoiding the infrared sensor 16 during the process of disposing the metal sheet 19 is to prevent the metal sheet 19 from shielding the infrared sensor 16 from being affected during the process of emitting and receiving infrared light by the infrared sensor 16.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The above disclosure provides many different embodiments, or examples, for implementing different features of the invention. The components and arrangements of the specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses 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 the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., 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 invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (18)
1. An electronic device, comprising:
the light-transmitting display screen comprises an upper surface and a lower surface opposite to the upper surface, the light-transmitting display screen is used for emitting light through the upper surface to display, the light-transmitting display screen comprises an OLED display screen, the lower surface comprises a display area and a frame area surrounding the display area, and the light-transmitting display screen is used for emitting light through the display area to display; and
the infrared sensor is arranged below a display area of the light-transmitting display screen and used for transmitting and/or receiving infrared light, the wavelength of the infrared light is larger than 2000nm, and the orthographic projection of the upper surface of the infrared sensor is located in the display area.
2. The electronic device of claim 1, further comprising a first coating layer applied to the bottom surface and covering the infrared sensor, the first coating layer configured to transmit infrared light and intercept visible light, the infrared sensor configured to transmit and/or receive infrared light through the first coating layer and the light transmissive display screen.
3. The electronic device of claim 2, wherein an orthographic projection of the infrared sensor on the lower surface is within an orthographic projection of the first coating layer on the lower surface.
4. The electronic device of claim 2, wherein an orthographic projection of the infrared sensor on the lower surface coincides with the first coating layer.
5. The electronic device according to claim 1, further comprising a light shielding layer provided on the lower surface and surrounding the infrared sensor.
6. The electronic device of claim 2, wherein the infrared sensor comprises a proximity sensor comprising an emitter for emitting infrared light through the first coating layer and the light transmissive display screen and a receiver for receiving infrared light reflected by an object to detect a distance of the object from the electronic device.
7. The electronic device of claim 2, wherein the first coating layer comprises an IR ink having a transmittance of greater than 85% for infrared light and a transmittance of less than 6% for visible light, the IR ink being transparent to infrared light at a wavelength of 2000nm or greater.
8. The electronic device of claim 2, further comprising a second coating layer applied to the bottom surface and contiguous with the first coating layer.
9. The electronic device of claim 8, wherein the second coating layer comprises a black ink having a transmittance of less than 3% for visible light and a transmittance of less than 3% for infrared light.
10. The electronic device according to claim 1, further comprising a light-transmissive touch panel and a light-transmissive cover formed on the light-transmissive touch panel, wherein the light-transmissive touch panel is disposed on the light-transmissive display screen, the upper surface faces the light-transmissive touch panel, and both the light transmittance of the light-transmissive cover and the light-transmissive touch panel for visible light and the light transmittance of the light-transmissive touch panel for infrared light are greater than 90%.
11. The electronic device of claim 10, wherein a ratio of an area of the display area to an area of the light transmissive cover plate is greater than 90%.
12. The electronic device of claim 1, further comprising a buffer layer covering the lower surface and avoiding the infrared sensor.
13. The electronic device of claim 12, further comprising a metal sheet covering the buffer layer and avoiding the infrared sensor.
14. A method of manufacturing an electronic device, comprising the steps of:
providing a light-transmitting display screen, wherein the light-transmitting display screen comprises an upper surface and a lower surface opposite to the upper surface, the light-transmitting display screen is used for emitting light through the upper surface to display, the light-transmitting display screen comprises an OLED display screen, the lower surface comprises a display area and a frame area surrounding the display area, and the light-transmitting display screen is used for emitting light through the display area to display; and
providing an infrared sensor, infrared sensor is relative the lower surface sets up, infrared sensor sets up the below of the display area of printing opacity display screen, infrared sensor is used for seeing through printing opacity display screen transmission and/or receipt infrared light, the wavelength of infrared light is greater than 2000nm, infrared sensor is in the orthographic projection of upper surface is located in the display area.
15. The method of manufacturing of claim 14, further comprising the steps of:
and coating a first coating layer on the lower surface and covering the infrared sensor, wherein the first coating layer is used for transmitting infrared light and intercepting visible light, and the infrared sensor is used for transmitting and/or receiving infrared light through the first coating layer and the light-transmitting display screen.
16. The method of manufacturing of claim 15, further comprising the steps of:
and coating a second coating layer on the lower surface, wherein the second coating layer is connected with the first coating layer.
17. The method of manufacturing of claim 14, further comprising the steps of:
arranging a light-transmitting touch panel on the light-transmitting display screen; and
and a light-transmitting cover plate is arranged on the light-transmitting touch panel.
18. The method of manufacturing of claim 14, further comprising the steps of:
and the lower surface is provided with a buffer layer which covers the lower surface and avoids the infrared sensor.
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| CN109510885B (en) * | 2018-11-19 | 2020-08-07 | Oppo广东移动通信有限公司 | electronic device |
| CN109743419B (en) * | 2018-12-27 | 2021-07-06 | 维沃移动通信有限公司 | Infrared sensor structure, display screen structure and terminal |
| CN109828636A (en) * | 2019-01-30 | 2019-05-31 | 维沃移动通信有限公司 | A kind of display module and electronic equipment |
| CN110471081A (en) * | 2019-04-30 | 2019-11-19 | 深圳市光鉴科技有限公司 | 3D imaging device and electronic equipment based on synchronous ToF discrete point cloud |
| CN111947565A (en) * | 2019-04-30 | 2020-11-17 | 深圳市光鉴科技有限公司 | 3D imaging method based on synchronous ToF discrete point cloud |
| CN111785762B (en) * | 2020-07-28 | 2023-04-25 | Oppo（重庆）智能科技有限公司 | Display screen assembly and electronic equipment |
| CN114428413B (en) * | 2020-10-28 | 2024-05-07 | 北京小米移动软件有限公司 | Display panel, display assembly and terminal equipment |
| CN113938546A (en) * | 2021-11-15 | 2022-01-14 | Oppo广东移动通信有限公司 | Electronic equipment |
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