CN109804338B - Electronic device and method for detecting the approach of an object - Google Patents
Electronic device and method for detecting the approach of an object Download PDFInfo
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- CN109804338B CN109804338B CN201680090040.7A CN201680090040A CN109804338B CN 109804338 B CN109804338 B CN 109804338B CN 201680090040 A CN201680090040 A CN 201680090040A CN 109804338 B CN109804338 B CN 109804338B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
Abstract
An electronic device for detecting the approach of an object and a detection method thereof are provided, wherein an emitting device (31) and a photosensitive device (32) are used, the optical path direction of detection light is adjusted through a first light guide column (303) and a first optical path adjusting layer (304), so that the detection light can be respectively emitted from a first panel (100) and a second panel (200), and the optical path direction of reflected light is adjusted through the first light guide column (303) and the first optical path adjusting layer (304), so that the reflected light reflected by the object approaching the first panel (100) and the object approaching the second panel (200) can be received, and the front and back of the electronic device can realize the proximity sensing function. The electronic device realizes the double-sided induction approaching function by using the same sleeved near-beam device, effectively saves the cost, saves the board distribution area and reduces the complexity of the internal layout of the device.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to an electronic device and a method for detecting the approach of an object.
Background
Present smart mobile phone all possesses and is close the response function, adopts through the transmission infrared light, and the reflection through being close to the object is to being close optical sensor, the energy of response infrared light to realize being close the response function.
The prior art can only realize the approaching function on a single panel of a mobile phone, cannot detect the approach of an object on a back panel, and has limited approaching induction function.
Disclosure of Invention
The electronic device provided by some embodiments of the invention is used for eliminating the problem that the approach sensing function is limited due to a single-panel approach mode in the prior art.
According to some embodiments in an aspect, there is provided an electronic device for detecting the proximity of an object, wherein the electronic device comprises: the electronic device comprises a first panel and a second panel, wherein the first panel and the second panel are arranged on two opposite sides of the electronic device; the emitting device is used for emitting detection light, and the photosensitive device is used for receiving reflected light, wherein the reflected light is light reflected by an object close to the first panel of the electronic device and/or an object close to the second panel of the electronic device; the first light guide column is arranged on the light path of the detection light; the first light path adjusting layer is arranged on the first light guide column and used for changing the direction of part of the detection light so as to be emitted from the second panel; the second light guide column is arranged on the light path of the reflected light; and the second light path adjusting layer is arranged on the second light guide column and used for changing the direction of the reflected light reflected by the object close to the second panel so as to reach the photosensitive device.
According to some embodiments, the first panel includes a first light guide window and a second light guide window, the second panel includes a third light guide window and a fourth light guide window, the first light guide window is opposite to the first light guide pillar, the second light guide window is opposite to the second light guide pillar, the third light guide window is opposite to the first light guide pillar, and the fourth light guide window is opposite to the second light guide pillar.
According to some embodiments, a window size of the first light guide window is smaller than a cross-sectional size of a relative position with the first light guide pillar, a window size of the second light guide window is smaller than a cross-sectional size of the second light guide pillar adjacent thereto, a window size of the third light guide window is smaller than a cross-sectional size of a relative position with the first light guide pillar, and a window size of the fourth light guide window is smaller than a cross-sectional size of a relative position with the second light guide pillar.
According to some embodiments, the first optical path adjustment layer comprises: the first reflection layer and the first refraction layer are arranged between the first light guide column and the first reflection layer;
the second optical path adjustment layer includes: the second reflection layer and the second refraction layer are arranged between the second light guide column and the second reflection layer.
According to some embodiments, the first and second reflective layers are silver plated layers, and the first and second refractive layers are resin layers.
According to some embodiments, the window sizes of the first and second light guide windows, the third light guide window, and the fourth light guide window, and the light guide rates of the first light guide pillar, the first light path adjusting layer, the second light guide pillar, and the second adjusting layer are matched to satisfy: the ranges of the first light amount range of the reflected light in which a certain object approaches the first panel, the second light amount range of the reflected light in which a certain object approaches the second panel, and the third light amount range of the reflected light in which several objects simultaneously approach the first panel and the second panel do not overlap.
According to some embodiments, the electronic device further comprises: a light shielding plate disposed in a space between the first panel and the second panel, and disposed around the emission device, around the photosensitive device, and between the emission device and the photosensitive device to shield interference light to the emission device and the photosensitive device; a circuit board disposed in a space between the first panel and the second panel, the emitting device and the light sensing device being adjacently disposed on the circuit board; and the processor receives the light quantity of the reflected light of the circuit board and judges whether an object approaches the electronic device and the approached first panel and/or second panel according to the received light quantity.
According to some embodiments, the first panel and the second panel are both display panels.
According to some embodiments, the first panel is a display panel and the second panel is a housing.
According to some embodiments, the detection light is infrared detection light, the emitting device is a light emitting diode, and the photosensitive device is a photosensitive element.
According to some embodiments above, the electronic device for detecting the approach of an object may use an emitting device and a photosensitive device, adjust the optical path direction of the detection light through the first light guiding pillar and the first optical path adjusting layer, so that the detection light can be emitted from the first panel and the second panel respectively, adjust the optical path direction of the reflection light through the first light guiding pillar and the first optical path adjusting layer, so as to receive the reflection light reflected by the object approaching the first panel and the object approaching the second panel, and implement the proximity sensing function on both front and back sides of the electronic device.
Furthermore, the electronic device uses the same sleeve-joint near-beam device (an emitting device and a photosensitive device) to realize the co-workers with the double-sided induction approaching function, so that the cost is effectively saved, the board distribution area is saved, and the complexity of the internal layout of the device is reduced.
Meanwhile, the light guide rate of the light guide column, the size of each window on the panel, and the reflectivity and the refractive index of the first light path adjusting layer and the second light path adjusting layer are adjusted to determine different light quantity ranges of reflected light, so that the light quantity of the reflected light which can be received by the lock is acquired to determine whether an object approaches or not, and the first panel and/or the second panel approach.
In some embodiments, applied to an electronic device with dual display panels, power consumption and false touch rate of an unused side can be reduced through a dual-side proximity function.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the lower panel briefly introduces the drawings that need to be used in the description of the embodiments. In the drawings, like reference numerals designate corresponding parts throughout the several views. It is to be understood that the drawings in the following description are of some, but not all, embodiments of the invention. For a person skilled in the art, it is possible to derive other figures from these figures without inventive effort.
FIG. 1 is a schematic diagram of a prior art device structure for proximity sensing;
FIG. 2 illustrates a schematic diagram of an electronic device for detecting the proximity of an object provided in accordance with an aspect of the present application;
FIG. 3 illustrates a schematic front view of an electronic device provided in accordance with some embodiments;
FIG. 4 illustrates a cross-sectional schematic view of an electronic device provided in accordance with some embodiments;
FIG. 5 illustrates a schematic structural diagram of a first optical path adjustment layer provided in accordance with some embodiments;
FIG. 6 illustrates a schematic diagram of a method of an electronic device detecting the proximity of an object provided in accordance with some embodiments.
Detailed Description
The technical scheme of the embodiment will be clearly and completely described by the lower panel in combination with the attached drawings in some embodiments.
Fig. 1 shows a schematic diagram of a device structure with proximity sensing function in the prior art, which includes a display panel 10, a back housing 20, and an emitting device 31, emitting probe light through a light guide pillar 33 and a first window 34 on the display panel 10, when an object 40 approaches the device, reflected light is formed and emitted into a photosensitive device 32 through a second window 35 on the display panel 10, when the photosensitive device 32 receives the reflected light, a sensing signal is sent to a processor of the device, the processor determines that the object approaches according to the sensing signal, and invokes a preset instruction to execute a corresponding action, so that the corresponding object approaches.
In the prior art, a device structure with a proximity sensing function only supports single-side proximity sensing, and the proximity sensing function is limited.
To solve the above technical problem, fig. 2 shows a schematic diagram of an electronic device for detecting an object proximity according to an aspect of the present application, wherein the electronic device includes: a first panel 100, a second panel 200 and an inductive device 300, wherein the inductive device 300 comprises: the light source device comprises an emitting device 301, a light sensing device 302, a first light guide pillar 303, a first light path adjusting layer 304, a second light guide pillar 305 and a second light path adjusting layer 306.
In some embodiments, the electronic Device may be a mobile phone (also called a smart phone), a Tablet Personal Computer (Tablet Personal Computer), a Personal Digital Assistant (PDA), an e-book reader (english: e-book reader), a wearable Device or a Virtual Reality Interactive Device (Virtual Reality Interactive Device), and the like.
In some embodiments, the electronic device further includes the first panel 100 and the second panel 200 disposed oppositely, and the first panel 100 and the second panel 200 may be a display panel or a housing.
Taking a mobile phone as an electronic device as an example, some mobile phones adopt a single-screen display mode, for example, the first panel 100 has a touch display screen, and the second panel 200 is a mobile phone rear shell. In some embodiments, the mobile phone adopts a dual-screen display mode, that is, the first panel and the second panel both have display panels, the display panels may be a touch display screen, a non-touch display screen, or the like, and the display mode may be a liquid crystal display mode, an ink display mode, or the like.
Fig. 3 illustrates a schematic front view of an electronic device provided in accordance with some embodiments, and fig. 4 illustrates a schematic cross-sectional view of an electronic device provided in accordance with some embodiments. The first panel 100 has a touch display area 101 and a non-touch display area 102, and the sensing device 300 is disposed between the first panel 100 and the second panel 200 (shown in fig. 2), preferably, disposed side by side in the non-touch display area 102, for example, an area near the top of the electronic device, so as to avoid touch operation from interfering with proximity detection. If the second panel 200 also has a touch display area and a non-touch display area, the sensing device 300 is also disposed in the non-touch display area of the second panel 200.
In some embodiments, the detection light is infrared detection light, the emitting device 301 is a light emitting diode, and the sensing device 302 may be a photosensitive element (e.g., a photo resistor).
With continued reference to fig. 2, the emitting device 301 is configured to emit probe light, and the photosensitive device 302 is configured to receive reflected light, where the reflected light is light reflected by an object 401 close to the first panel 100 of the electronic device and/or an object 402 close to the second panel 200 of the electronic device.
The first light guide column 303 is disposed on a light path of the probe light; the first light path adjusting layer 304 is disposed on the first light guide pillar 303, and is configured to change a direction of a portion of the probe light to be emitted from the second panel 200; the second light guide bar 305 is disposed on the light path of the reflected light; the second light path adjusting layer 306 is disposed on the second light guide bar 305, and is used for changing the direction of the reflected light reflected by the object 402 approaching the second panel 200 to reach the photosensitive device 302.
The first light guide column 303 is used for guiding the probe light to improve the convergence of the probe light conduction, and the second light guide column 305 is used for guiding the reflected light to improve the convergence of the probe light conduction. By adjusting the light guide rates of the first light guide column 303 and the second light guide column 305 (for example, adjusting the doping material of the first light guide column 303 or the second light guide column 305, or even adjusting the doping material of different regions in the first light guide column 303 and the second light guide column 305 to adjust the light guide rates), the amounts of the probe light emitted from the first panel 100 and the second panel 200, and the amounts of the reflected light received from the first panel 100 and the reflected light emitted from the second panel 200 can be adjusted, respectively.
The first panel 100 includes a first light guide window 307 and a second light guide window 308, the second panel 200 includes a third light guide window 309 and a fourth light guide window 310, the first light guide window 307 is opposite to the first light guide pillar 303, the second light guide window 308 is opposite to the second light guide pillar 305, the third light guide window 309 is opposite to the first light guide pillar 303, and the fourth light guide window 310 is opposite to the second light guide pillar 305, so that the reflected light is emitted through the first light guide window 307 and the third light guide window 309, and the reflected light is emitted through the second light guide window 308 and the fourth light guide window 310 from the second light guide pillar 305.
The first panel 100 has a first light guide window 307 at a position corresponding to the first light guide pole 303, the first panel 100 has a second light guide window 308 at a position corresponding to the second light guide pole 305, the second panel 200 has a third light guide window 309 at a position corresponding to the first light guide pole 303, and the second panel has a fourth light guide window 310 at a position corresponding to the second light guide pole 305.
A part of the probe light F1 emitted from the emitting device 301 passes through the first light guide pillar 303 and the first light guide window 307 and exits from the first panel 100, when an object 401 approaches, the probe light F1 is reflected by the object 401 to form a reflected light F2, the reflected light F2 enters through the second light guide window 308, and after passing through the second light guide pillar 305, the light sensing device 302 receives the reflected light F2; after the light path of a part of the reflected light F3 emitted by the emitting device 301 is changed by the first light path adjusting layer 304, the reflected light F3 passes through the first light guide pillar 303 and the third light guide window 309 and is emitted from the second panel 200, when an object 402 approaches, the probe light F3 is reflected by the object 402 to form reflected light F4, the reflected light F4 enters through the fourth light guide window 310, passes through the second light guide pillar 305, and changes the light path by the second light path adjusting layer 305, and the photosensitive device 302 receives the reflected light F4.
In some embodiments, with reference to fig. 2 and 3, the surface of the touch display area 101 of the electronic device may be transparent, the non-touch display area 102 may be covered by a colored coating, and each of the light guide windows (307-310) has a coating capable of transmitting the detection light.
In some embodiments, the detection light is infrared detection light, the coating on the emitting device 301 may be invisible but capable of transmitting the infrared detection light (the light guide window above the emitter is invisible) to reduce the loss of the detection light of the emitting device 301, the photosensitive device 302 may be transparent through the coating on the light guide window to receive the reflected light, and reducing the visible window can further improve the overall aesthetic appearance of the electronic device.
To ensure that the probe light or the reflected light can effectively pass through the corresponding light guide windows, and reduce the loss of light quantity, the opening size of the light guide window may be set smaller than the size of the corresponding region corresponding to the light guide pillar, i.e. the diameter H1 of the first light guide window 307 is smaller than the sectional size H1 'of the first light guide pillar 303 adjacent thereto, the diameter H2 of the second light guide window 308 is smaller than the sectional size H2' of the second light guide pillar 305 adjacent thereto, the diameter H3 of the third light guide window 309 is smaller than the sectional size H3 'of the first light guide pillar 303 adjacent thereto, and the diameter H4 of the fourth light guide window 310 is smaller than the sectional size H4' of the second light guide pillar 395 adjacent thereto.
The first optical path adjustment layer 304 is configured to change a direction of a portion of the probe light to be emitted through the second light guide window 309, and the second optical path adjustment layer 306 is configured to change a direction of the reflected light reflected by the object 401 close to the second panel 200 to reach the light sensing device 306.
Fig. 5 illustrates a structural diagram of a first optical path adjustment layer 304 provided according to some embodiments, in some embodiments, the first optical path adjustment layer 304 includes a first reflective layer 304a and a first refractive layer 304b, and the first refractive layer 304a is disposed between the first light guide pillar 303 and the first reflective layer 304 b. In some embodiments, the first reflective layer 304a is a silver plated layer, and the first refractive layer 304b is a resin layer, such as a PET (polyethylene terephthalate).
The optical path of the probe light can be adjusted by adjusting the sawtooth angle of the first refractive layer 304a, and the amount of the probe light emitted can be further adjusted by adjusting the refractive index of the first refractive layer 304 a.
In some embodiments, the second optical path adjustment layer 306 includes a second reflective layer and a second refractive layer disposed between the second light guide pillar and the second reflective layer.
In some embodiments, the second reflective layer is a silver plated layer and the second refractive layer is a resin layer, such as PET (polyester resin). The structure and the material of the second reflecting layer refer to the structure and the material of the first reflecting layer, and the structure and the material of the second refracting layer refer to the structure and the material of the first reflecting layer. Similarly, the optical path of the reflected light can be adjusted by adjusting the sawtooth angle of the second refractive layer, and the amount of the received reflected light can be further adjusted by adjusting the light guiding ratio of the second refractive layer.
In some embodiments, with continued reference to fig. 2, the electronic device further includes a circuit board 311 and a processor (not shown in the figure), the processor may be connected to the circuit board 311 through a wire, and may further include a light shielding plate 312, wherein the circuit board 311 is disposed between the first panel 100 and the second panel 200, and the emitting device 301 and the light sensing device 302 are disposed adjacent to the circuit board 311; the circuit board 311 receives an electrical signal converted by the light sensing device 302 from the received reflected light, the circuit board 311 sends the electrical signal to a processor, the processor receives and analyzes the light quantity of the reflected light of the circuit board, to determine whether an object is in proximity to the electronic device, and to determine whether an object is in proximity to the first panel, an object is in proximity to the second panel, or both are in proximity to the first panel 100 and the second panel 200, the light shielding plate 312 is disposed in a space between the first panel 100 and the second panel 200, and is disposed around said emitting device 301, around said light sensing device 302 and between said emitting device 301 and said light sensing device 302, to shield the interference light to the emitting device and the light sensing device, the shielding plate 312 may be fixed between the first panel 100 and the second panel 200 by a light shielding adhesive.
In order to be able to distinguish whether the light received by the light sensing device 302 is reflected light from the first panel 100 or the second panel 200, or both. In some embodiments, the light guide rates of the first light guide pillar 303, the first optical path adjustment layer 304, the second light guide pillar 305, and the second adjustment layer 306 satisfy: the maximum value of the quantity of the reflected light received by the light sensing device 302 and reflected by the object close to the second panel 200 is smaller than the minimum value of the quantity of the reflected light received and reflected by the object 401 close to the first panel 100; and the maximum value of the light quantity of the reflected light received by the light sensing device 302 via the object 401 close to the first panel 100 is smaller than the sum of the minimum value of the light quantity of the reflected light received via the object 401 close to the second panel 200 and the minimum value of the light quantity of the reflected light reflected via the object 401 close to the first panel 100.
The light guide rate of each layer can be adjusted by adjusting the materials of the first light guide pillar 303, the first light path adjusting layer 304, the second light guide pillar 305, and the second adjusting layer 306 to satisfy the above conditions.
With reference to fig. 6, using the electronic device according to some of the embodiments described above, the process of detecting the approach of an object is as follows:
the electronic device includes: the device comprises a first panel, a second panel, an emitting device, a photosensitive device, a first light guide column, a first light path adjusting layer, a second light guide column and a second light path adjusting layer;
firstly, in step 501, the emitting device emits probe light, a part of the probe light is emitted from the first panel through the first light guide pillar, and a part of the probe light is emitted from the second panel through the first light guide pillar and the first light path adjusting layer;
next, in step 502, the photosensitive device receives reflected light reflected when an object approaches, where the reflected light includes reflected light entering from the first panel and passing through the first light guide pillar and reflected light entering from the second panel and passing through the second light path adjusting layer and the second light guide pillar;
next, in step 503, the electronic device detects the light quantity of the reflected light received by the photosensitive device, determines whether an object approaches according to the light quantity range in which the light quantity of the reflected light is located, and determines the first panel and/or the second panel to which the object approaches when the object approaches.
Wherein in step 503, the electronics process the received reflected light and determine that an object is proximate to the first panel in response to detecting that the amount of light of the reflected light is within a first light amount range, wherein the first light amount range is a range between a minimum value and a maximum value of the amount of light of the reflected light reflected by the object proximate to the first panel; determining that an object is close to the second panel in response to detecting that the light amount of the reflected light is in a second light amount range, wherein the second light amount range is a range between a minimum value and a maximum value of the light amount of the reflected light reflected by the object close to the second panel; determining that an object is close to the first panel and an object is close to the second panel in response to detecting that the light amount of the reflected light is in a third light amount range between a sum of a minimum value of the light amount of the reflected light reflected by the object close to the first panel and a minimum value of the light amount of the reflected light reflected by the object close to the second panel, a maximum value of the light amount of the reflected light reflected by the object close to the first panel and a maximum value of the light amount of the reflected light reflected by the object close to the second panel; wherein a maximum value of a light amount of the reflected light reflected by the object close to the second panel is smaller than a minimum value of a light amount of the reflected light reflected by the object close to the first panel, and the maximum value of the light amount of the reflected light reflected by the object close to the first panel is smaller than a sum of the minimum value of the light amount of the reflected light reflected by the object close to the second panel and the minimum value of the light amount of the reflected light reflected by the object close to the first panel.
Referring to fig. 2, when there is no object in the first panel 100 and the second panel 200, there is almost no reflected light, and thus, the light quantity of the reflected light received by the photosensitive device 302 is almost zero, and when there is an object close to the first panel 100, the first light quantity range of the reflected light received from the first panel 100 is L11～L12(wherein, L11＜L12) A second light quantity range of the reflected light received from the direction of the second panel 100 when an object approaches the second panel 200 is L21～L22(wherein, L21＜L22) When an object approaches both the first panel 100 and the second panel 200, the third light amount range of the received reflected light is: (L)21+L11)～(L22+L12). The approach light device is closer to the front surface, so that the reflected light quantity of the back surface is smaller than that of the front surface, when objects approach to the two surfaces simultaneously, the light quantity is larger than that of the single surface, and the light guide rate of the first light guide column, the first light path adjusting layer, the second light guide column and the second light path adjusting layer is adjusted in advance to enable the L to be larger than that of the single surface12＜L21And L is22＜(L21+L11) The first light amount range, the second light amount range, and the third light amount range are not overlapped.
The light sensing device may determine whether an object is approaching according to the light amount of the received reflected light, determine whether an object is approaching according to which light amount range the light amount falls within, and determine the first panel and/or the second panel to which the object is approaching when an object is approaching.
In one embodiment, the first light amount range is set to L by adjusting the light guide rate of each structure11～L12Is (800-1000 uw/cm)2) The second light quantity range is L21～L22Is (250 to 400 uw/cm)2) The third light quantity range is (L)21+L11)～(L22+L12) Is (1050-1400 uw/cm)2)。
When the light quantity received by the photosensitive device is L, for example, when L is 300uw/cm2If the light quantity falls within the second light quantity range, it is determined that an object approaches the second panel 200; for example, when L is 900uw/cm2If the light quantity falls within the first light quantity range, it is determined that an object approaches the first panel 100; for example, when L is 1200uw/cm2And falls within the third light amount range, it is determined that an object approaches both the first panel 100 and the second panel 200.
According to some embodiments, the electronic device for detecting the approach of an object provided by the embodiments uses an emitting device and a photosensitive device, adjusts the optical path direction of the detection light through the first light guide pillar and the first optical path adjusting layer, so that the detection light can be emitted from the first panel and the second panel respectively, and adjusts the optical path direction of the reflected light through the first light guide pillar and the first optical path adjusting layer, so as to receive the reflected light reflected by the object approaching the first panel and the object approaching the second panel, and thus, both the front side and the back side of the electronic device can realize the proximity sensing function.
The electronic device realizes the co-workers with double-sided induction approaching function by using the same sleeved near-beam device (an emitting device and a photosensitive device), effectively saves cost, saves board distribution area and reduces the complexity of the internal layout of the device.
Meanwhile, the light guide rate of the light guide column, the size of each window on the panel, and the reflectivity and the refractive index of the first light path adjusting layer and the second light path adjusting layer are adjusted to determine different light quantity ranges of reflected light, so that the light quantity of the reflected light which can be received by the lock is acquired to determine whether an object approaches or not, and the first panel and/or the second panel approach.
In some embodiments, applied to an electronic device with dual display panels, power consumption and false touch rate of an unused side can be reduced through a dual-side proximity function.
In summary, the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. An electronic device for detecting the proximity of an object, wherein the electronic device comprises:
the electronic device comprises a first panel and a second panel, wherein the first panel and the second panel are arranged on two opposite sides of the electronic device;
the emitting device is used for emitting detection light, and the photosensitive device is used for receiving reflected light, wherein the reflected light is light reflected by an object close to the first panel of the electronic device and/or an object close to the second panel of the electronic device;
the first light guide column is arranged on the light path of the detection light;
the first light path adjusting layer is arranged on the first light guide column and used for changing the direction of part of the detection light so as to be emitted from the second panel;
the second light guide column is arranged on the light path of the reflected light;
and the second light path adjusting layer is arranged on the second light guide column and used for changing the direction of the reflected light reflected by the object close to the second panel so as to reach the photosensitive device.
2. The electronic device of claim 1, wherein the first panel comprises a first light guide window and a second light guide window, the second panel comprises a third light guide window and a fourth light guide window, the first light guide window is opposite the first light guide post position, the second light guide window is opposite the second light guide post position, the third light guide window is opposite the first light guide post position, and the fourth light guide window is opposite the second light guide post position.
3. The electronic device of claim 2, wherein a window size of the first light guide window is smaller than a cross-sectional size of a relative position to the first light guide post, a window size of the second light guide window is smaller than a cross-sectional size of the second light guide post adjacent thereto, a window size of the third light guide window is smaller than a cross-sectional size of a relative position to the first light guide post, and a window size of the fourth light guide window is smaller than a cross-sectional size of a relative position to the second light guide post.
4. The electronic device of any one of claims 1 to 3, wherein the first optical path adjustment layer comprises: the first reflection layer and the first refraction layer are arranged between the first light guide column and the first reflection layer;
the second optical path adjustment layer includes: the second reflection layer and the second refraction layer are arranged between the second light guide column and the second reflection layer.
5. The electronic device of claim 4, wherein the first and second reflective layers are silver plated layers and the first and second refractive layers are resin layers.
6. An electronic device, wherein the electronic device has all the features of the electronic device of any one of claims 1 to 5, and the window sizes of the first and second light guide windows, the third light guide window, and the fourth light guide window, and the light guide rates of the first light guide pillar, the first light path adjustment layer, the second light guide pillar, and the second adjustment layer are matched to satisfy:
the ranges of the first light amount range of the reflected light in which a certain object approaches the first panel, the second light amount range of the reflected light in which a certain object approaches the second panel, and the third light amount range of the reflected light in which several objects simultaneously approach the first panel and the second panel do not overlap.
7. An electronic device having all the features of the electronic device of any one of claims 1 to 6, and further comprising:
a light shielding plate disposed in a space between the first panel and the second panel, and disposed around the emission device, around the photosensitive device, and between the emission device and the photosensitive device to shield interference light to the emission device and the photosensitive device;
a circuit board disposed in a space between the first panel and the second panel, the emitting device and the light sensing device being adjacently disposed on the circuit board;
and the processor receives the light quantity of the reflected light of the circuit board and judges whether an object approaches the electronic device and the approached first panel and/or second panel according to the received light quantity.
8. An electronic device, wherein the electronic device has all the features of the electronic device of any one of claims 1 to 7, and wherein the first panel and the second panel are both display panels.
9. An electronic device, wherein the electronic device has all the features of the electronic device of any one of claims 1 to 7, and wherein the first panel is a display panel and the second panel is a housing.
10. An electronic device, wherein said electronic device has all the features of the electronic device of any one of claims 1 to 9, and wherein said probe light is infrared probe light, said emitting device is a light emitting diode, and said light sensing device is a light sensitive element.
11. A method of detecting the proximity of an object using the electronic device of any one of claims 1 to 10, wherein the method comprises:
the emitting device emits detection light, part of the detection light is emitted from the first panel through the first light guide column, and part of the detection light is adjusted in light path through the first light path adjusting layer and emitted from the second panel through the first light guide column;
the light sensing device receives reflected light reflected when an object approaches, wherein the reflected light comprises reflected light entering from the first panel and passing through the first light guide column and reflected light entering from the second panel and passing through the second light path adjusting layer and the second light guide column;
and detecting the light quantity of the reflected light received by the photosensitive device, determining whether an object approaches according to the light quantity range where the light quantity of the reflected light is located, and determining the first panel and/or the second panel which the object approaches when the object approaches.
12. The method of claim 11, wherein the method further comprises:
determining that an object approaches the first panel in response to detecting that the light amount of the reflected light is within a first light amount range, wherein the first light amount range is a light amount range of the reflected light in which a certain object approaches the first panel;
determining that an object approaches the second panel in response to detecting that the light amount of the reflected light is within a second light amount range, wherein the second light amount range is a light amount range of the reflected light in which a certain object approaches the second panel;
determining that an object is close to the first panel and an object is close to the second panel in response to detecting that the light amount of the reflected light is in a third light amount range, wherein the third light amount range is a light amount range of the reflected light in which a plurality of objects are close to the first panel and the second panel at the same time.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/101941 WO2018068240A1 (en) | 2016-10-12 | 2016-10-12 | Electronic device and method for detecting proximity of object |
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| CN109804338A CN109804338A (en) | 2019-05-24 |
| CN109804338B true CN109804338B (en) | 2020-11-10 |
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| WO (1) | WO2018068240A1 (en) |
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| WO2018068240A1 (en) * | 2016-10-12 | 2018-04-19 | 华为技术有限公司 | Electronic device and method for detecting proximity of object |
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| Publication number | Publication date |
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| WO2018068240A1 (en) | 2018-04-19 |
| CN109804338A (en) | 2019-05-24 |
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