CN108051370A - Ambient light detection method and device, electronic equipment - Google Patents
Ambient light detection method and device, electronic equipment Download PDFInfo
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- CN108051370A CN108051370A CN201711237405.7A CN201711237405A CN108051370A CN 108051370 A CN108051370 A CN 108051370A CN 201711237405 A CN201711237405 A CN 201711237405A CN 108051370 A CN108051370 A CN 108051370A
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- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 4
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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Abstract
The disclosure provides a kind of ambient light detection method and device, electronic equipment, and described device includes：Touch screen, reflector, frame, light sensor and printed circuit board, transmission region is offered on touch screen, transmission region is corresponding with the position of reflector, and light sensor is located at the reflective side of reflector, and fix on a printed circuit board, and be electrically connected with the processor on printed circuit board；Wherein, touch screen is used to that ambient light to be transmitted to reflector by transmission region；Reflector is used for the reflection of ambient light of transmission region transmission to light sensor；Light sensor is used to ambient light being converted to electric signal；Processor is used for the luminous intensity according to electrical signal detection ambient light.The disclosure is by the way that light sensor is hidden in below touch screen, and using reflector principle of reflection by reflection of ambient light to light sensor to realize the detection of ambient light, even if so as to which touch screen is made comprehensive screen, light sensor can also perceive the variation of environmental light brightness.
Description
Technical Field
The present disclosure relates to the field of optical technologies, and in particular, to an ambient light detection method and apparatus, and an electronic device.
Background
Currently, when the terminal automatically adjusts the screen brightness, the terminal generally adjusts the screen brightness according to a linear relationship between the ambient brightness and the screen brightness, wherein the ambient brightness is detected by a light sensor disposed in the terminal. In the related art, the light sensor is usually disposed at the top of the terminal display screen, i.e., below the transparent glass in the shape of a small circular hole near the receiver of the terminal, and light passes through the transparent glass and can directly reach the light sensor, so that the light sensor can directly sense the change of the ambient light brightness. However, for a terminal with a full-screen display screen, there is no position on the top of the display screen where a light sensor can be placed, so that the change of the ambient light brightness cannot be sensed.
Disclosure of Invention
In order to overcome the problems in the related art, embodiments of the present disclosure provide an ambient light detection method and apparatus, and an electronic device, which are used to detect ambient light brightness.
According to a first aspect of embodiments of the present disclosure, there is provided an ambient light detection apparatus, the apparatus comprising: the touch screen is provided with a light transmitting area, the light transmitting area corresponds to the position of the reflector, and the light sensor is positioned on the light reflecting side of the reflector, is fixed on the printed circuit board and is electrically connected with a processor on the printed circuit board; wherein,
the touch screen is used for transmitting ambient light to the reflector through the light transmitting area;
the reflector is used for reflecting the ambient light transmitted by the light-transmitting area to the light sensor;
the light sensor is used for converting the ambient light into an electric signal;
the processor is used for detecting the light intensity of the ambient light according to the electric signal.
In one embodiment, the light-transmitting area is made of a light-transmitting material.
In one embodiment, the degree of the included angle between the reflector and the frame is (0, 90).
In an embodiment, the light-transmitting area is located at an edge of the touch screen, and a width of the light-transmitting area along a direction perpendicular to the frame ranges from 0.5 mm to 1 mm.
In an embodiment, the apparatus may further include a driving circuit, the driving circuit is electrically connected to both the touch screen and the processor, and the driving circuit adjusts the display brightness of the touch screen according to the detected light intensity under the control of the processor.
According to a second aspect of embodiments of the present disclosure, there is provided an ambient light detection method, the method comprising:
transmitting ambient light to the reflector through the light transmitting area of the touch screen;
reflecting the ambient light transmitted by the light-transmitting area onto the light sensor through the reflector;
converting the ambient light into an electrical signal by the light sensor;
detecting, by the processor, a light intensity of ambient light from the electrical signal.
In an embodiment, the method may further comprise:
and adjusting the display brightness of the touch screen through a driving circuit based on the light intensity detected by the processor.
According to a third aspect of embodiments of the present disclosure, there is provided an electronic device including the ambient light detection apparatus according to the first aspect.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the light-transmitting area is arranged on the touch screen and transmits the ambient light to the reflector, and then the reflector reflects the ambient light transmitted by the light-transmitting area to the light sensor, so that the light sensor can convert the ambient light into an electric signal and detect the light intensity of the ambient light according to the electric signal through the processor. Based on the above description, it can be known that, by hiding the light sensor below the touch screen and utilizing the reflection principle of the reflection plate to reflect the ambient light to the light sensor so as to realize the detection of the ambient light, the light sensor can be prevented from being arranged on the frame of the electronic device in a hole-opening manner, when the touch screen of the electronic device is a full screen, the hole for accommodating the light sensor can be prevented from being formed in the full screen, and the full screen is ensured to have more attractiveness and integrity.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1A is a block diagram illustrating an ambient light detection device according to an exemplary embodiment.
FIG. 1B is a diagram of a full-screen device according to the embodiment shown in FIG. 1A.
FIG. 2 is a flow chart illustrating a method of ambient light detection according to an exemplary embodiment.
Fig. 3 is a block diagram illustrating an electronic device suitable for use in an ambient light detection arrangement according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
FIG. 1A is a block diagram illustrating an ambient light detection device in accordance with an exemplary embodiment; fig. 1B is a diagram of a full-screen device according to the embodiment shown in fig. 1A, where the ambient light detection apparatus may be applied to an electronic device (e.g., a smart phone, a tablet computer), as shown in fig. 1A, and the ambient light detection apparatus includes: the touch screen comprises a touch screen 10, a reflector 11, a frame 12, a light sensor 13 and a printed circuit board 14, wherein one end of the reflector 11 is fixed on the inner side of the frame 12, the other end of the reflector 11 is fixed on the printed circuit board 14, a light transmission area 101 is arranged on the touch screen 10, the light transmission area 101 corresponds to the position of the reflector 11, and the light sensor 13 is positioned on the light reflection side of the reflector 11, is fixed on the printed circuit board 14 and is electrically connected with a processor 141 on the printed circuit board 14.
The touch screen 10 is used for transmitting ambient light 15 to the reflector 11 through the light-transmitting area 101;
a reflector 11 for reflecting the ambient light 15 transmitted by the light-transmitting region 101 onto the light sensor 13;
a light sensor 13 for converting ambient light 15 into an electrical signal;
and a processor 141 for detecting the light intensity of the ambient light according to the electrical signal.
In one embodiment, the touch screen 10 can be a full-screen, in which case the electronic device can be designed as a super high-screen-ratio device, and the front surface of the electronic device is almost entirely a screen. As shown in fig. 1B, an exemplary full-screen device.
In one embodiment, since the touch screen 10 is a full-screen touch screen and has a high screen occupation ratio, there is no space for placing the light sensor 13 on the top of the touch screen 10, so the light sensor 13 is hidden under the touch screen 10 in the present disclosure, and the ambient light 15 is guided onto the light sensor 13 through the transparent area 101 disposed on the touch screen 10, and the transparent area 101 may be located at the edge of the touch screen 10, and the width along the direction perpendicular to the frame 12 may range from 0.5 mm to 1 mm. Since the light-transmitting area 101 is located at the edge of the touch screen 10 and is only 0.5 mm-1 mm wide, the effect of the full-screen is not affected.
In an embodiment, the transparent area 101 formed on the touch screen 10 may be made of a transparent material, so that the touch screen 10 does not need to be perforated, the integrity of the touch screen 10 can be maintained, and the touch screen 10 can have better aesthetic property and integrity.
Wherein, this light-permeable material can be transparent glass, transparent glass can be passed through to the ambient light that can be lossless.
In an embodiment, the angle between the reflector 11 and the bezel 12 may be (0, 90) so as to ensure that the ambient light 15 is reflected onto the light sensor 13 by the reflector 11 with a large angle range.
If the included angle between the reflector 11 and the frame 12 is a, and the width of the transparent region 101 is d, the width of the reflector 11 is d/sina, as can be seen from the correspondence between the positions of the transparent region 101 and the reflector 11. For example, the width d of the light-transmitting region 101 is 0.5 mm, the included angle a between the reflector 11 and the bezel 12 is 45 degrees, and the width of the reflector 11 is 0.5 mm.
In an embodiment, the ambient light detection device may further include a driving circuit, the driving circuit may be electrically connected to both the touch screen 10 and the processor 141, and the driving circuit may adjust the display brightness of the touch screen 10 according to the detected light intensity under the control of the processor 141. Therefore, the processor can realize the adjustment of the display brightness of the touch screen through the driving circuit.
The processor 141 may pre-configure a relationship between the ambient light intensity and the display brightness, determine a display brightness value corresponding to the ambient light intensity based on the relationship, and set the display brightness of the touch screen 10 as the determined display brightness value.
According to the embodiment, the light-transmitting area formed in the touch screen transmits the ambient light to the reflector, and then the reflector reflects the ambient light transmitted by the light-transmitting area to the light sensor, so that the light sensor can convert the ambient light into the electric signal and detect the light intensity of the ambient light according to the electric signal through the processor. Based on the above description, it can be known that, by hiding the light sensor below the touch screen and utilizing the reflection principle of the reflection plate to reflect the ambient light to the light sensor so as to realize the detection of the ambient light, the light sensor can be prevented from being arranged on the frame of the electronic device in a hole-opening manner, when the touch screen of the electronic device is a full screen, the hole for accommodating the light sensor can be prevented from being formed in the full screen, and the full screen is ensured to have more attractiveness and integrity.
Fig. 2 is a flowchart illustrating an ambient light detection method according to an exemplary embodiment, which may be applied to an electronic device, as shown in fig. 2, the ambient light detection method including the steps of:
in step 201, ambient light is transmitted onto the reflective plate through the transparent region of the touch screen.
In step 202, ambient light transmitted through the light-transmissive region is reflected by the reflector onto the light sensor.
In step 203, the ambient light is converted into an electrical signal by the light sensor.
In step 204, the light intensity of the ambient light is detected by the processor from the electrical signal.
After step 204 is executed, the processor may further adjust, by the driving circuit, the display brightness of the touch screen based on the detected light intensity.
The flow described in the above step 201 to step 204 may refer to the related description of the embodiment shown in fig. 1A, and is not described again.
In this embodiment, the light-transmitting area that sets up on through the touch screen transmits ambient light to the reflector panel on, then the reflector panel reflects the ambient light of light-transmitting area transmission again to light sensor on to light sensor can convert ambient light into the signal of telecommunication, and detects the luminous intensity of ambient light according to this signal of telecommunication through the treater. Based on the above description, it can be known that, by hiding the light sensor below the touch screen and utilizing the reflection principle of the reflection plate to reflect the ambient light to the light sensor so as to realize the detection of the ambient light, the light sensor can be prevented from being arranged on the frame of the electronic device in a hole-opening manner, when the touch screen of the electronic device is a full screen, the hole for accommodating the light sensor can be prevented from being formed in the full screen, and the full screen is ensured to have more attractiveness and integrity.
Fig. 3 is a block diagram illustrating an electronic device suitable for use in an ambient light detection arrangement according to an exemplary embodiment. For example, the electronic device 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 3, electronic device 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input/output (I/O) interface 312, sensor component 314, and communication component 316.
The processing component 302 generally controls overall operation of the electronic device 300, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing elements 302 may include one or more processors 320 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 302 can include one or more modules that facilitate interaction between the processing component 302 and other components. For example, the processing component 302 can include a multimedia module to facilitate interaction between the multimedia component 308 and the processing component 302.
The memory 304 is configured to store various types of data to support operations at the device 300. Examples of such data include instructions for any application or method operating on the electronic device 300, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 304 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply component 306 provides power to the various components of the electronic device 300. The power components 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power supplies for the electronic device 300.
The multimedia component 308 comprises a screen providing an output interface between the electronic device 300 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 308 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 300 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 310 is configured to output and/or input audio signals. For example, the audio component 310 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 300 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 304 or transmitted via the communication component 316. In some embodiments, audio component 310 also includes a speaker for outputting audio signals.
The I/O interface 312 provides an interface between the processing component 302 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
Sensor assembly 314 includes one or more sensors for providing various aspects of status assessment for electronic device 300. For example, sensor assembly 314 may detect an open/closed state of device 300, the relative positioning of components, such as a display and keypad of electronic device 300, sensor assembly 314 may also detect a change in the position of electronic device 300 or a component of electronic device 300, the presence or absence of user contact with electronic device 300, the orientation or acceleration/deceleration of electronic device 300, and a change in the temperature of electronic device 300. Sensor assembly 314 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 316 is configured to facilitate wired or wireless communication between the electronic device 300 and other devices. The electronic device 300 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication section 316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 316 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the electronic device 300 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 304, that are executable by the processor 320 of the electronic device 300 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (8)
1. An ambient light detection device, the device comprising: the touch screen is provided with a light transmitting area, the light transmitting area corresponds to the position of the reflector, and the light sensor is positioned on the light reflecting side of the reflector, is fixed on the printed circuit board and is electrically connected with a processor on the printed circuit board; wherein,
the touch screen is used for transmitting ambient light to the reflector through the light transmitting area;
the reflector is used for reflecting the ambient light transmitted by the light-transmitting area to the light sensor;
the light sensor is used for converting the ambient light into an electric signal;
the processor is used for detecting the light intensity of the ambient light according to the electric signal.
2. The device of claim 1, wherein the light-transmissive region is a light-transmissive material.
3. The apparatus of claim 1, wherein the angle between the reflector and the bezel is (0, 90).
4. The device of claim 1, wherein the light-transmissive region is located at an edge of the touch screen, and a width of the light-transmissive region along a direction perpendicular to the bezel is in a range from 0.5 mm to 1 mm.
5. The device of claim 1, further comprising a driving circuit electrically connected to both the touch screen and the processor, wherein the driving circuit adjusts the display brightness of the touch screen according to the detected light intensity under the control of the processor.
6. An ambient light detection method, the method comprising:
transmitting ambient light to the reflector through the light transmitting area of the touch screen;
reflecting the ambient light transmitted by the light-transmitting area onto the light sensor through the reflector;
converting the ambient light into an electrical signal by the light sensor;
detecting, by the processor, a light intensity of ambient light from the electrical signal.
7. The method of claim 6, further comprising:
and adjusting the display brightness of the touch screen through a driving circuit based on the light intensity detected by the processor.
8. An electronic device, characterized in that the electronic device comprises the ambient light detection apparatus according to any one of claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711237405.7A CN108051370A (en) | 2017-11-30 | 2017-11-30 | Ambient light detection method and device, electronic equipment |
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| CN201711237405.7A CN108051370A (en) | 2017-11-30 | 2017-11-30 | Ambient light detection method and device, electronic equipment |
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