CN108521481B

CN108521481B - Electronic device

Info

Publication number: CN108521481B
Application number: CN201810297906.2A
Authority: CN
Inventors: 马静一
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-03-30
Filing date: 2018-03-30
Publication date: 2020-08-21
Anticipated expiration: 2038-03-30
Also published as: CN108521481A

Abstract

The invention discloses an electronic device which comprises a display screen and a transparent photosensitive film, wherein the transparent photosensitive film is arranged on the surface of the display screen and used for sensing the intensity of light. In the electronic device and the manufacturing method thereof, the transparent photosensitive film is arranged on the surface of the display screen, so that a hole is prevented from being formed in the front side of the electronic device, the electronic device is ensured to realize the effect of a full-screen, and the transparent photosensitive film does not influence the normal display of the display screen.

Description

Electronic device

Technical Field

The present invention relates to the field of electronic technologies, and in particular, to an electronic device.

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 current position of sensors such as an infrared sensor makes the screen of the mobile phone occupy a smaller area.

Disclosure of Invention

The embodiment of the invention provides an electronic device.

The electronic device comprises a display screen, a transparent photosensitive film and a processor, wherein the transparent photosensitive film is laid on the display screen and used for sensing light signals, and the processor is used for controlling the display screen according to the light signals sensed by the transparent photosensitive film.

In the electronic device of the embodiment of the invention, the transparent photosensitive film is arranged on the display screen, so that a hole is prevented from being formed in the front side of the electronic device, the electronic device is ensured to realize the effect of a full-screen, and the transparent photosensitive film does not influence the normal display of the display screen.

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 schematic perspective view of an electronic device according to an embodiment of the invention;

FIG. 2 is a schematic plan view of an electronic device according to an embodiment of the invention;

FIG. 3 is a schematic cross-sectional view of the electronic device of FIG. 2 taken along direction III-III;

FIG. 4 is a schematic partial cross-sectional view of an electronic device according to an embodiment of the invention;

FIG. 5 is another schematic partial cross-sectional view of an electronic device according to an embodiment of the invention;

FIG. 6 is a schematic plan view of an electronic device according to an embodiment of the invention;

FIG. 7 is another schematic plan view of an electronic device according to an embodiment of the invention;

FIG. 8 is yet another schematic plan view of an electronic device according to an embodiment of the invention;

FIG. 9 is a schematic plan view of an electronic device according to an embodiment of the invention;

FIG. 10 is a schematic plan view of an electronic device according to an embodiment of the invention;

fig. 11 is a schematic flow chart of a method of manufacturing an electronic device according to an embodiment of the invention;

FIG. 12 is another schematic cross-sectional view of an electronic device according to an embodiment of the invention;

fig. 13 is yet another schematic cross-sectional view of an electronic device according to an embodiment of the invention.

Description of the main element symbols: the electronic device 10, the cover plate 11, the touch layer 12, the display 13, the upper surface 131, the lower surface 132, the display region 1311, the non-display region 1312, the first coating layer 14, the second coating layer 15, the infrared sensor 16, the emitter 161, the receiver 162, the package 163, the buffer layer 18, the metal sheet 19, the housing 20, the light blocking element 30, the photosensitive film 40, the battery 110, and the main circuit board 120.

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 disposed on the electronic device needs to be provided with corresponding holes for transmitting and receiving infrared signals, but with the 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 has been developed towards the direction of the full-screen, and the full-screen mobile phone forms an ultra-narrow frame between the casing and the display screen assembly, and because the width of the ultra-narrow frame is too small, the ultra-narrow frame may not have enough space to open a hole, so that the overall strength of the frame is reduced even if the hole is opened, and further the reliability of the electronic equipment is low.

Referring to fig. 1 and 2, an electronic device 10 according to an embodiment of the invention includes a housing 20. The electronic device 10 may be a mobile phone or a tablet computer. The electronic device 10 according to the embodiment of the present invention is described by taking a mobile phone as an example, but it is needless to say that the specific form of the electronic device 10 may be other, and the present invention is not limited thereto.

Referring to fig. 3, the electronic device 10 includes a display 13, an infrared sensor 16, and a light blocking member 30. The display 13 includes a display area 1311 and a non-display area 1312, and the non-display area 1312 surrounds the display area 1311. The infrared sensor 16 is located below the display 13 and includes an emitter 161 and a receiver 162, the emitter 161 being configured to emit infrared light, for example, the emitter 161 emitting infrared light through the non-display area 1312. The receiver 162 is used for receiving infrared light, for example, the receiver 162 receives infrared light through the display region 1311. The light blocking member 30 is disposed between the emitter 161 and the display region 1311, and the light blocking member 30 is used to block infrared light emitted from the emitter 161 from entering the display region 1311.

It is understood that the display 13 includes an upper surface 131 and a lower surface 132, and that the display 13 is adapted to emit light for display through the upper surface 131. The display 13 is transparent so that infrared light from the emitter 161 is transmitted through the display 13 and, similarly, reflected infrared light is received by the receiver 162 through the display 13.

The transmitter 161 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 162, 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 10 and the obstacle can be determined and adjusted accordingly. In one example, when the user is receiving or making a call, the electronic device 10 is close to the head, the transmitter 161 emits infrared light, the receiver 162 receives the infrared light reflected back by the head, the processor calculates the time from emission to reflection of the infrared light, and sends a corresponding instruction to control the screen to close the backlight, and when the electronic device 10 is far away from the head, the processor calculates again according to the data fed back and sends an instruction to re-open the screen backlight. Therefore, misoperation of the user is prevented, and the electric quantity of the mobile phone is saved.

Since the emitter 161 has a certain emission angle, even if the emitter 161 is located outside the display area 1311, there is no guarantee that infrared light emitted by the emitter 161 cannot enter the display area 1311. Therefore, the light blocking element 30 blocks the infrared light emitted by the emitter 161 from entering the display region 1311, and prevents the infrared light from adversely affecting the optoelectronic elements in the display region 1311. In one example, the light blocking member 30 is foam. Of course, the light blocking member 30 may be other non-light transmissive materials such as plastic.

In the electronic device 10, the receiver 162 serves as an input element of the electronic device 10, and the receiver 162 can receive an infrared signal and input the signal into the electronic device 10. The display 13 serves as an output element of the electronic device 10, and the display 13 can output display contents to the outside of the display 13 for a user to obtain corresponding information.

The housing 20 is used for accommodating the electronic device 10 to protect the electronic device 10. The housing 20 encloses the electronic device 10 by disposing the electronic device 10 in the housing 20, thereby preventing external factors from directly damaging the internal components of the electronic device 10. 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 10 according to the embodiment of the invention, the display 13 enables the infrared sensor 16 to be disposed below the display 13, so as to ensure that the electronic device 10 achieves a full-screen effect, and in addition, the orthographic projection of the emitter 161 of the red transparent photosensitive film 16 on the lower surface 132 of the display 13 is located outside the display area 1311 and the light blocking element 30 blocks the infrared light from entering the display area 1311, so that the infrared light emitted by the emitter 161 can be prevented from affecting the operating stability of the TFT of the display area 1311, and the display 13 and the infrared sensor 16 can achieve their respective functions without interfering with each other.

Specifically, the electronic device 10 further includes a battery 110 and a main circuit board 120, the battery 110 and the main circuit board 120 are both disposed on the same side of the casing 20, and the battery 110 and the display 13 are disposed on opposite sides of the casing 20. The battery 110 is used for supplying power to the electronic device 10, and the main circuit board 120 is configured to control an operating state of the electronic device 10, for example, the main circuit board 120 controls the display 13 to play video content.

In some embodiments, the display 13 comprises an OLED display.

In particular, an Organic Light-Emitting Diode (OLED) display screen has good Light transmittance and can transmit 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 showing the content effect. The display screen 13 may also be a Micro LED display screen, which also has good 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. 4, in some embodiments, the light blocking member 30 is adhered and fixed at the connection between the display region 1311 and the non-display region 1312. In this way, the fixing manner of the light blocking member 30 is easily achieved, so that the electronic device 10 is easily manufactured. In one example, when the light blocking member 30 is fixed to the lower surface 132 of the display 13, a double-sided adhesive tape may be attached to one surface of the light blocking member 30, and then the light blocking member 30 may be fixedly attached to the joint between the display region 1311 and the non-display region 1312 by the double-sided adhesive tape.

Referring to fig. 3, in some embodiments, the infrared sensor 16 includes a package 163 for packaging the emitter 161 and the receiver 162, and the light blocking member 30 is fixed on the package 163 and located between the emitter 161 and the receiver 162. In this manner, the light blocking member 30 is fixedly installed, so that the infrared sensor 16 and the light blocking member 30 are fitted with the display screen 13 as a whole.

In some embodiments, the light blocking member 30 is a soft material, and the light blocking member 30 abuts the lower surface 132. Thus, the light blocking element 30 has a better light blocking effect, and ensures that the infrared light emitted by the emitter 161 cannot enter the display region 1311. In addition, the matching structure of the infrared sensor 16 and the display screen 13 is more compact.

Referring to fig. 5, in some embodiments, the light blocking member 30 and the package 163 are an integral structure. In this way, the material of the light blocking member 30 is consistent with the material of the package body 163, and the light blocking member 30 can be formed at the same time as the infrared sensor 16 is manufactured, so that the number of parts of the electronic device 10 can be reduced to improve the assembly efficiency of the electronic device 10.

In some embodiments, the front projection of the receiver 162 on the lower surface 132 is located within the display area 1311, and the receiver 162 is configured to receive infrared light transmitted through the display area 1311. In this manner, the receiver 162 has a sufficient spatial arrangement. Of course, in some embodiments, the orthographic projection of receiver 162 on lower surface 132 may also be located at a position corresponding to non-display region 1312, as shown in fig. 6.

Referring to fig. 3, in some embodiments, the electronic device 10 further includes a touch layer 12 and a cover plate 11. The cover plate 11 is formed on the touch layer 12, the touch layer 12 is disposed on the display 13, the upper surface 131 of the display 13 faces the touch layer 12, and the light transmittance of the touch layer 12 and the cover plate 11 to visible light and the light transmittance of infrared light are both greater than 90%.

Specifically, the touch layer 12 is mainly used for receiving an input signal generated when a user touches the touch layer 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 touch layer 12. The touch layer 12 and the 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 cover plate 11 is disposed on the touch layer 12, so that the touch layer 12 and the internal structure thereof can be effectively protected, and the touch layer 12 and the display screen 13 are prevented from being damaged by external force. The light transmittance of the cover plate 11 and the light transmittance of the touch layer 12 to visible light and infrared light are both greater than 90%, which is not only beneficial to the display screen 13 to better display the content effect, but also beneficial to the infrared sensor 16 arranged below the display screen 13 to stably emit and receive infrared light, and ensures the normal operation of the infrared sensor 16.

In some embodiments, the display 13 is used for displaying light through the display area 1311, and the ratio of the area of the display area 1311 to the area of the cover 11 is greater than 90%. For example, the ratio of the area of the display region 1311 to the area of the cover plate 11 is a ratio of 95%, 96%, or the like.

Specifically, by setting the proportion of the display area 1311 and the cover plate 11, after the display screen 13 is attached to the cover plate 11, the display area 1311 can display the content effect in a large size area, so that not only is good user experience promoted, but also the screen occupation ratio of the electronic device 10 is effectively increased, and a comprehensive screen effect is achieved. The non-display area 1312 can also be used to shield other components and metal traces underneath the display 13 to maintain the appearance of the product consistent. The non-display area 1312 may be printed with ink to increase the optical density of the display 13, so as to ensure the light-shielding effect and provide a good visual effect.

Referring to fig. 3, in some embodiments, the electronic device 10 further includes a first coating layer 14, the first coating layer 14 is coated on the bottom surface 132 and covers the emitter 161, the first coating layer 14 is used for transmitting infrared light and blocking visible light, and the emitter 161 is used for transmitting infrared light through the first coating layer 14.

Specifically, the emitter 161 is usually mounted with a gap during the process of assembly, which results in a gap between the emitter 161 and other components, and visible light enters the gap to leak light. Therefore, in the direction in which the emitter 161 and the display 13 are stacked, the orthographic projection area of the first coating layer 14 on the lower surface 132 covers the orthographic projection area of the emitter 161 on the lower surface 132, so that the emitter 161 can be sufficiently shielded by the first coating layer 14 without affecting the normal operation of the emitter 161, and the effect that the emitter 161 is not visible when the electronic device 10 is viewed from the outside is achieved.

The first coating layer 14 transmits infrared light, so that when the transmitter 161 transmits infrared light outwards for detection, the intensity of the infrared light transmitted through the first coating layer 14 is attenuated to a small extent, or the attenuation degree does not affect the detection process, thereby ensuring the normal operation of the transmitter 161. The first coating layer 14 blocks visible light so that the visible light cannot pass through the first coating layer 16, and blocks the emitter 161 visually, thereby achieving an effect that the emitter 161 is not visible when the electronic device 10 is viewed from the outside.

In some embodiments, the infrared sensor 16 includes a proximity sensor, the emitter 161 is configured to emit infrared light through the first coating layer 1311 and the non-display area 1312, and the receiver 162 is configured to receive the infrared light reflected by the object to detect a distance of the object from the upper surface 131.

Specifically, in one example, when the user is answering or making a call, the electronic device 10 is close to the head, the emitter 161 emits infrared light, the receiver 162 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 emits a corresponding instruction to control the screen to close the background light, and when the electronic device 10 is far away from the head, the processor performs calculation again according to the feedback data and emits 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 a transmittance of less than 6% for visible light, the IR ink being transparent to infrared light at a wavelength of 850nm to 940 nm.

Specifically, since the IR ink has a characteristic of low transmittance to visible light, the emitter 161 disposed under the first coating layer 14 is not observed based on the visual perception of human eyes when the electronic device 10 is viewed from the outside. Meanwhile, the IR printing ink has the characteristic of high light transmittance to infrared light, so that the emitter 161 can stably emit the infrared light, and the normal work of the emitter 161 is ensured.

Referring to fig. 6, in some embodiments, the transmitter 161 and the receiver 162 are separate structures.

Specifically, since the transmitter 161 and the receiver 162 are separate structures, a compact arrangement or a dispersed arrangement may be selected when arranging the components, which is not only beneficial for the electronic device 10 to fully allocate the spatial positions of the components and apply the transmitter 161 and the receiver 162 with various shapes, but also beneficial for the transmitter 161 and the receiver 162 to provide possible positions for other components in the electronic device 10.

In one example, the split emitters 161 and receivers 162 are each disposed below a length edge of the non-display area 1312, as shown in fig. 6.

In another example, the split emitters 161 and receivers 162 are each disposed below a corner corresponding position of the non-display area 1312, as shown in fig. 7.

In yet another example, the split emitters 161 and receivers 162 are respectively disposed below both length edges of the non-display area 1312, as shown in fig. 8.

Referring to fig. 9, in some embodiments, the transmitter 161 and the receiver 162 are of unitary construction.

Specifically, the transmitter 161 and the receiver 162 are of an integral structure, so that line connection between split structures can be omitted, the reduction of line process flow is facilitated, the production efficiency of products is improved, and the production cost is reduced.

In the infrared sensor 16, as in the example of fig. 9, the transmitter 161 is located at a position corresponding to the non-display region 1312, and the receiver 162 is located at a position corresponding to the display region 1311.

In the example of fig. 10, the transmitter 161 and the receiver 162 of the entire structure are each disposed at a position corresponding to the width edge of the non-display region 1312.

Referring to fig. 3 again, in some embodiments, the electronic device 10 further includes a second coating layer 15 coated on the bottom surface 132 and covering the receiver 162, wherein the second coating layer 15 is used for transmitting infrared light and blocking visible light, and the receiver 162 is used for receiving infrared light through the display region 1311 and the second coating layer 15.

Specifically, the receiver 162 is usually mounted with a gap during the process of assembly, which results in a gap between the receiver 162 and other components, so that visible light enters from the gap and light leakage occurs. Therefore, in the direction in which the receiver 162 and the display 13 are stacked, the orthographic projection area of the second coating layer 15 on the lower surface 132 covers the orthographic projection area of the receiver 162 on the lower surface 132, so that the receiver 162 can be sufficiently shielded by the second coating layer 15 without affecting the normal operation of the receiver 162, and the effect that the receiver 162 is not visible when the electronic device 10 is viewed from the outside is achieved.

The second coating layer 15 may also be an IR ink, which has a low transmittance of visible light, so that the receiver 162 disposed under the second coating layer 15 is not perceived by the human eye when the electronic device 10 is viewed from the outside. Meanwhile, since the IR ink has a characteristic of high transmittance to infrared light, the receiver 162 can stably receive infrared light, and normal operation of the receiver 162 is ensured.

In some embodiments, electronic device 10 further includes a cushioning 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 touch layer 12, the display 13 and the internal structure thereof, and prevent the display from being damaged by 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. The purpose of avoiding the infrared sensor 16 during the process of providing the buffer layer 18 is to prevent the buffer layer 18 from blocking the signal received by the infrared sensor 16, so that the infrared sensor 16 is not affected during the process of receiving infrared light.

In some embodiments, electronic device 10 further includes a metal sheet 19 attached under cushioning layer 18 and avoiding 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. The reason why the infrared sensor 16 is avoided during the process of providing the metal piece 19 is to prevent the metal piece 19 from blocking the signal received by the infrared sensor 16 so that the infrared sensor 16 is not affected during the process of receiving infrared light.

Referring to fig. 3 and 11, a method for manufacturing an electronic device 10 according to an embodiment of the present invention includes the following steps:

s301, providing a display screen 13, wherein the display screen 13 comprises a display area 1311 and a non-display area 1312;

s302, providing an infrared sensor 16, wherein the infrared sensor 16 includes a transmitter 161 for transmitting infrared light and a receiver 162 for receiving infrared light;

s303, disposing the infrared sensor 16 below the display 13 so that the emitter 161 is located in the non-display area 1312; and

s304, providing a light blocking member 30, disposing the light blocking member 30 between the emitter 161 and the display region 1311, wherein the light blocking member 30 is used to block infrared light emitted by the emitter 161 from entering the display region 1311.

Specifically, the electronic device 10 employs the display 13, the infrared sensor 16 may be disposed below the display 13 in the case of a full-screen, and the emitter 161 of the infrared sensor 16 may be disposed in the non-display area 1312, so that the infrared light emitted from the emitter 161 may be prevented from affecting the operating stability of the TFT of the display area 1311, and thus the display 13 and the infrared sensor 16 may realize their functions without interfering with each other. The display 13 may be an organic light-Emitting Diode (OLED) display, and the OLED display 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 showing the content effect. The display screen 13 may also be a Micro LED display screen, which also has good 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 display 13 is used for displaying the content effect through visible light on the one hand, and for transmitting infrared light on the other hand, so that the infrared sensor 16 normally emits and receives infrared light.

In some embodiments, the method of manufacturing the electronic device 10 further comprises the steps of:

a touch layer 12 is provided on the display 13. And

a cover plate 11 is disposed on the touch layer 12.

Specifically, the touch layer 12 is mainly used for receiving an input signal generated when a user touches the touch layer 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 touch layer 12. The touch layer 12 and the 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 cover plate 11 is disposed on the touch layer 12, so that the touch layer 12 and the internal structure thereof can be protected, and direct damage of the touch layer 12 caused by external force is avoided.

In some embodiments, the method for manufacturing the electronic device 10 further includes, before the step S303, the steps of:

applying a first coating layer 14 to the lower surface 132;

step S303 specifically includes:

an infrared sensor 16 is disposed below the display screen 13 and covers the first coating layer 14 over an emitter 161, the emitter 161 for emitting infrared light through the first coating layer 14.

Specifically, the first coating layer 14 may employ an IR ink, and since the IR ink has a characteristic of low transmittance to visible light, the emitter 161 disposed under the first coating layer 14 may not be perceived based on human eye's vision when the electronic device 10 is viewed from the outside. Meanwhile, the IR printing ink has the characteristic of high light transmittance to infrared light, so that the emitter 161 can stably emit the infrared light, and the normal work of the emitter 161 is ensured.

Referring to fig. 12, in some embodiments, the electronic device 10 includes a transparent photosensitive film 40, and the transparent photosensitive film 40 is disposed on the display 13 and is used for sensing a light signal. The processor of the electronic device 10 is configured to control the display 13 according to the light signal sensed by the transparent photosensitive film 10.

Thus, the transparent photosensitive film 40 is disposed on the display 13 to avoid opening at the front side of the electronic device 10, so as to ensure that the electronic device 10 realizes the full-screen effect, and the transparent photosensitive film 40 does not affect the normal display of the display 13.

In one example, a fine photosensor may be disposed on a transparent film to form the transparent photosensitive film 40. In one example, the transparent photosensitive film 40 may be disposed on the surface of the display 13 by an on-cell technique.

In one example, the processor of the electronic device 10 is configured to control the brightness of the display screen based on the light signal sensed by the transparent photosensitive film 40. Specifically, when the transparent photosensitive film 40 senses different light intensities, currents with different intensities are generated, so as to sense the ambient light brightness. For example, when the user is under the sun, the ambient light is strong, the transparent photosensitive film 40 feeds back the light intensity of the environment to the processor (not shown), and the processor executes corresponding instructions to enhance the brightness of the display 13 to adapt to the light intensity of the current environment, so that the content of the screen viewed by the user is clearer. When the user is in a dark environment, the ambient light is weak, the transparent photosensitive film 40 feeds back the light intensity of the environment to the processor, and the processor executes corresponding instructions to reduce the brightness of the display 13 to adapt to the light intensity of the current environment, so that the user does not feel dazzling when watching the screen content, thereby giving the optimal visual effect to the user. Therefore, the method is not only beneficial to protecting the eyesight of the user, but also saves the electric quantity of the mobile phone and can further achieve the effect of prolonging the service life of the battery. Further, the transparent photosensitive film 40 may also be used to output a signal for adjusting white balance when the user is using the photographing function.

In another example, the processor is used for controlling the display 13 from the screen locking state to the unlocking state according to the light signal sensed by the transparent photosensitive film 40. This may facilitate the user's use of the electronic device 10, improving user experience. For example, when the user puts the electronic device 10 in a pocket, the electronic device 10 is in a screen-locking state, the transparent photosensitive film 40 senses a weak light signal, when the user takes the electronic device 10 out of the pocket, the transparent photosensitive film 40 senses a strong light signal, and at this time, the processor controls the display screen 13 to be unlocked so that the user can use the electronic device 10 conveniently.

In yet another example, the processor is configured to control the display 13 from the locked state to the unlocked state according to the light signal sensed by the transparent photosensitive film 40. This may facilitate the user's use of the electronic device 10, improving user experience. For example, when the user uses the electronic device 10 normally, the electronic device 10 is in an unlocked state, and the transparent photosensitive film 40 senses that the intensity of the light signal is strong; when the user places the electronic device 10 in a pocket and the transparent photosensitive film 40 senses that the intensity of the light signal is weak, the processor controls the display 13 to lock the screen to prevent the electronic device 10 from being touched by mistake, so as to prevent bad results, such as a wrong call made by the electronic device 10.

In some embodiments, the transparent photosensitive film 40 is disposed on the upper surface 131 and/or the lower surface 132. Alternatively, in some embodiments, the transparent photosensitive film 40 is disposed on the upper surface 131, as shown in FIG. 13; in some embodiments, a transparent photosensitive film 40 is disposed on the lower surface 132; in some implementations, the transparent photosensitive film 40 is disposed on both the upper surface 131 and the lower surface 132, as shown in FIG. 12.

In some embodiments, a transparent photosensitive film 40 is disposed on a surface of the display region 1311. For example, the transparent photosensitive film 40 is disposed on the upper surface or the lower surface of the display region 1311. Thus, the transparent photosensitive film 40 has a larger surface area, can receive more light, and has a stronger ability to sense light.

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 herein, references to the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 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

1. An electronic device, comprising:

the display screen is an organic light emitting diode display screen and comprises a display area and a non-display area, and the display screen comprises an upper surface and a lower surface;

the transparent photosensitive film is laid on the display screen and used for sensing light signals, and the transparent photosensitive film is arranged on the lower surface; and

the processor is used for controlling the display screen according to the light signals sensed by the transparent photosensitive film;

the electronic device further includes:

the infrared sensor is arranged below the display screen to ensure that the electronic device realizes the effect of a full screen, and comprises a transmitter and a receiver, wherein the transmitter is positioned below the non-display area, the receiver is positioned below the display area and/or the non-display area, the transmitter is used for transmitting infrared light, and the receiver is used for receiving the infrared light; and

the light blocking element is arranged between the emitter and the display area and used for blocking the infrared light emitted by the emitter from entering the display area so as to prevent the infrared light emitted by the emitter from influencing the working stability of the TFT (thin film transistor) of the display area, the light blocking element is made of soft materials and abuts against the lower surface of the display screen, and the light blocking element is fixedly adhered to the joint of the display area and the non-display area.

2. The electronic device of claim 1, wherein the display screen comprises a display area and a non-display area, and the transparent photosensitive film is disposed on a surface of the display area.

3. The electronic device of claim 1, wherein the processor is configured to control the brightness of the display screen according to a light signal sensed by the transparent photosensitive film.

4. The electronic device of claim 1, wherein the processor is configured to control the display screen from an unlocked state to a locked state according to a light signal sensed by the transparent photosensitive film.

5. The electronic device of claim 1, wherein the processor is configured to control the display screen from a locked state to an unlocked state according to a light signal sensed by the transparent photosensitive film.

6. The electronic device of claim 1, further comprising a touch layer and a cover disposed on the touch layer, wherein the touch layer is disposed between the display screen and the cover, and the light transmittance of the touch layer and the cover for visible light and the light transmittance of the cover for infrared light are both greater than 90%.

7. The electronic device of claim 1, wherein the infrared sensor includes an enclosure that encloses the emitter and the receiver, the light blocking member being secured to the enclosure and positioned between the emitter and the receiver.

8. The electronic device of claim 1, wherein the receiver is disposed below the display area, the receiver being configured to receive the infrared light transmitted through the display area.

9. The electronic device of claim 1, further comprising a first coating layer applied to a lower surface of the display screen and covering the emitter, the first coating layer configured to transmit infrared light and block visible light, the emitter configured to transmit the infrared light through the first coating layer.

10. The electronic device of claim 9, wherein the infrared sensor comprises a proximity sensor, the transmitter is configured to transmit the infrared light through the first coating layer, and the receiver is configured to receive the infrared light reflected by an object to detect a distance of the object from an upper surface of the display screen.

11. The electronic device of claim 9, 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 transmitting infrared light at a wavelength of 850nm to 940 nm.

12. The electronic device of claim 1, further comprising a second coating layer applied to a lower surface of the display screen and covering the receiver, the second coating layer being configured to transmit infrared light and block visible light, and the receiver being configured to receive infrared light through the display area and the second coating layer.

13. The electronic device of claim 1, further comprising a buffer layer attached to a lower surface of the display screen and facing away from the infrared sensor.

14. The electronic device of claim 13, further comprising a metal sheet attached under the cushioning layer and avoiding the infrared sensor.