WO2018068240A1

WO2018068240A1 - Electronic device and method for detecting proximity of object

Info

Publication number: WO2018068240A1
Application number: PCT/CN2016/101941
Authority: WO
Inventors: 谢鹏飞
Original assignee: 华为技术有限公司
Priority date: 2016-10-12
Filing date: 2016-10-12
Publication date: 2018-04-19
Also published as: CN109804338B; CN109804338A

Abstract

An electronic device for detecting the proximity of an object and a detection method thereof, wherein the optical path direction of probe light is adjusted by a first light guide bar (303) and a first optical path adjustment layer (304) with the use of an emission device (31) and a photosensitive device (32), so that the probe light can be emitted from a first panel (100) and a second panel (200) respectively; and the optical path direction of reflected light is adjusted by the first light guide bar (303) and the first optical path adjustment layer (304), so that reflected light reflected by an object approaching the first panel (100) and an object proximate to the second panel (200) can be received, thereby both the front and back sides of the electronic device can realise the function of proximity sensing. While the electronic device realises the function of two-sided proximity sensing by means of the same set of optical proximity devices, the cost and the area of the panel can be saved and the complexity of the internal layout within the device is reduced.

Description

Electronic device and method for detecting object proximity

Technical field

The present invention relates to the field of electronic technology, and more particularly to an electronic device and method for detecting object proximity.

Background technique

Today's smart phones are equipped with proximity sensing, which uses proximity to the sensing function by emitting infrared light, by approaching the reflection of an object to the proximity of the light sensor, and sensing the energy of the infrared light.

The prior art can only implement the proximity function on the single panel of the mobile phone, and cannot detect the proximity of the back panel object, and the proximity sensing function is limited.

Summary of the invention

The electronic device provided by some embodiments of the present invention is used to eliminate the problem that the single-panel approach mode leads to limited proximity sensing function in the prior art.

An electronic device for detecting object proximity according to some embodiments of an aspect, wherein the electronic device includes: a first panel and a second panel, the first panel and the second panel being disposed on the electronic The opposite sides of the device; the emitting device and the photosensitive device are disposed between the first panel and the second panel and both face the first panel, the emitting device is configured to emit the probe light, and the photosensitive device is used Receiving reflected light, the reflected light being light reflected by the probe light passing through an object of the first panel of the electronic device and/or an object close to a second panel of the electronic device; the first light guide column And disposed on the light path of the probe light; the first light path adjustment layer is disposed on the first light guide column for changing a direction of a portion of the probe light to be emitted from the second panel; a light guiding column disposed on the light path of the reflected light; a second light path adjusting layer disposed on the second light guiding column for changing a direction of the reflected light reflected by an object close to the second panel To Reaching the photosensitive device.

According to some embodiments, the first panel includes a first light guiding window and a second light guiding window, The second panel includes a third light guiding window and a fourth light guiding window, wherein the first light guiding window is opposite to the position of the first light guiding column, and the second light guiding window is opposite to the position of the second light guiding column, The third light guiding window is opposite to the position of the first light guiding column, and the fourth light guiding window is opposite to the position of the second light guiding column.

According to some embodiments, the window size of the first light guiding window is smaller than the cross-sectional size of the relative position of the first light guiding window, and the window size of the second light guiding window is smaller than the second guiding adjacent thereto a cross-sectional dimension of the light guide, a window size of the third light guide window is smaller than a cross-sectional dimension of a relative position of the first light guide window, and a window size of the fourth light guide window is smaller than a second light guide column The cross-sectional dimensions of the location.

According to some embodiments, the first optical path adjustment layer includes: a first reflective layer and a first refractive layer, the first refractive layer being disposed between the first light guiding column and the first reflective layer;

The second optical path adjustment layer includes a second reflective layer and a second refractive layer, and the second refractive layer is disposed between the second light guiding column and the second reflective layer.

According to some embodiments, the first reflective layer and the second reflective layer are silver plated layers, and the first refractive layer and the second refractive layer are resin layers.

According to some embodiments, window sizes of the first light guiding window and the second light guiding window, the third light guiding window and the fourth light guiding window, and the first light guiding column, the first light path adjusting layer, the The light guiding ratio of the second light guiding column and the second adjusting layer satisfies: a first light quantity range of an object approaching the reflected light of the first panel, and an object approaching the reflected light of the second panel The range of the two light amount ranges and the range of the third light amount range in which the plurality of objects simultaneously approach the reflected light of the first panel and the second panel do not overlap.

According to some embodiments, the electronic device further includes: a light shielding plate disposed in a space between the first panel and the second panel, and disposed around the emitting device, around the photosensitive device, and Between the emitting device and the photosensitive device, to shield the interference light between the emitting device and the photosensitive device; the circuit board is disposed in a space between the first panel and the second panel, The transmitting device and the photosensitive device are disposed adjacent to the circuit board; the processor receives the amount of light of the reflected light of the circuit board, and determines, according to the amount of received light, whether an object is close to the electronic device and is close to The first panel and / or the second panel.

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 probe light is infrared light, the light emitting device is a light emitting diode, and the light sensitive device is a light sensitive element.

According to some of the above embodiments, the electronic device that detects the proximity of the object, by using a transmitting device and a photosensitive device, adjusts the optical path direction of the probe light through the first light guiding rod and the first optical path adjusting layer, so that the detecting light can Ejecting from the first panel and the second panel respectively, adjusting an optical path direction of the reflected light by the first light guiding rod and the first optical path adjusting layer, so as to be able to receive an object close to the first panel and an object close to the second panel The reflected reflected light can realize the proximity sensing function on both the front and back of the electronic device.

Further, the electronic device uses the same set of proximity optical devices (one transmitting device and photosensitive device) to realize the double-sided sensing proximity function, thereby effectively saving cost, saving layout area, and reducing the complexity of internal layout of the device.

At the same time, by adjusting the light guiding ratio of the light guiding column, the size of each window on the panel, the reflectance and the refractive index of the first optical path adjusting layer and the second optical path adjusting layer, the light quantity range of different reflected light is determined, thereby obtaining lockable receiving. The amount of reflected light determines whether an object is in proximity, and is close to the first panel and/or the second panel.

In some embodiments, applied to an electronic device having a dual display panel, the power consumption and false touch rate of the unused side can be reduced by the double-sided proximity function.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the lower panel will briefly introduce the drawings used in the description of the embodiments. In the drawings, the same reference numerals indicate corresponding parts. Obviously, the drawings in the following panel description are only some, but not all, of the invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a schematic view showing a structure of a device of a proximity sensing function in the prior art;

2 shows a schematic diagram of an electronic device for detecting the proximity of an object according to an aspect of the present application;

3 shows a front schematic view of an electronic device provided in accordance with some embodiments;

4 shows a cross-sectional schematic view of an electronic device provided in accordance with some embodiments;

FIG. 5 is a schematic structural diagram of a first optical path adjustment layer according to some embodiments;

FIG. 6 illustrates a schematic diagram of a method for an electronic device to detect object proximity, in accordance with some embodiments.

detailed description

The technical solutions in the embodiments will be clearly and completely described in the following panels in conjunction with the drawings in some embodiments.

1 is a schematic view showing a structure of a device of a proximity sensing function in the prior art, including a display panel 10, a back surface housing 20, and a transmitting device 31 emitting a detection light, which is emitted through a light guiding column 33 and a first window 34 on the display panel 10, When the object 40 approaches the device, the reflected light is incident on the photosensitive device 32 through the second window 35 on the display panel 10. When the photosensitive device 32 receives the reflected light, the sensing signal is sent to the processor of the device for processing. The device determines that an object is close according to the sensing signal, and calls a preset instruction to perform a corresponding action to approach the corresponding object.

The device structure of the proximity sensing function in the prior art only supports single-sided proximity sensing, and the proximity sensing function is limited.

In order to solve the above technical problem, FIG. 2 shows a schematic diagram of an electronic device for detecting object approaching 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 sensing device 300 comprises: a transmitting device 301, a photosensitive device 302, a first light guiding column 303, a first light path adjusting layer 304, a second light guiding column 305 and a second light path adjusting layer 306.

In some embodiments, the electronic device may be a mobile phone (also known as a smart phone), a tablet personal computer, a personal digital assistant (PDA), an e-book reader (English: e- Book reader), wearable device or virtual reality interactive device (Virtual Reality Interactive Device), etc.

In some embodiments, the electronic device further includes the first panel 100 and the second panel 200 disposed opposite to each other, and the first panel 100 and the second panel 200 may be a display panel or a casing.

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 back cover of the mobile phone. In some embodiments, the mobile phone adopts a dual-screen display mode, that is, the first panel and the second panel each have a display panel, and the display panel may be a touch display screen, a non-touch display screen, etc., and the display manner may be a liquid crystal display type. Or ink display and so on.

3 shows a front schematic view of an electronic device provided in accordance with some embodiments, and FIG. 4 illustrates a 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. 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. The non-touch display area 102, for example, close to the top of the electronic device, prevents touch operations 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 probe light is infrared light, the light emitting device 301 is a light emitting diode, and the sensing device 302 can be a light sensitive element (eg, a photoresistor).

With continued reference to FIG. 2, the transmitting device 301 is configured to emit probe light, and the photosensitive device 302 is configured to receive reflected light that is the proximity of the probe light to the first panel 100 of the electronic device. The object 401 and/or light reflected by the object 402 of the second panel 200 of the electronic device.

The first light guiding column 303 is disposed on the light path of the detecting light; the first light path adjusting layer 304 is disposed on the first light guiding column 303 for changing a direction of a portion of the detecting light to The second light guide column 305 is disposed on the light path of the reflected light; the second light path adjustment layer 306 is disposed on the second light guide column 305 for changing the approach The direction of the reflected light reflected by the object 402 of the second panel 200 reaches the photosensitive device 302.

The first light guiding column 303 is used for guiding light to improve the gathering of the detecting light, and the second light guiding column 305 is used for guiding the reflected light to improve the gathering of the detecting light. By adjusting the light guiding ratio of the first light guiding column 303 and the second light guiding column 305 (for example, adjusting the first light guiding column 303) Or the doping material of the second light guiding column 305, even adjusting the doping material of the different regions in the first light guiding column 303 and the second light guiding column 305 to adjust the light guiding rate), respectively, can be adjusted from the first panel 100 and from the second The amount of light of the probe light emitted from the panel 200, the amount of light received from the first panel 100, and the reflected light emitted from the second panel 200.

The first panel 100 includes a first light guiding window 307 and a second light guiding window 308, and the second panel 200 includes a third light guiding window 309 and a fourth light guiding window 310, and the first light guiding window 307 Opposite the position of the first light guiding column 303, the second light guiding window 308 is opposite to the second light guiding column 305, and the third light guiding window 309 is opposite to the first light guiding column 303, The fourth light guiding window 310 is opposite to the second light guiding column 305, so that the reflected light is emitted through the first light guiding window 307 and the third light guiding window 309, and the reflected light passes through the second light guiding light. The window 308 and the fourth light guiding window 310 are incident from the second light guiding column 305.

The first panel 100 has a first light guiding window 307 at a position corresponding to the first light guiding column 303. The first panel 100 has a position corresponding to the second light guiding column 305. a second light guiding window 308, at a position corresponding to the first light guiding column 303, the second panel 200 has a third light guiding window 309 at a position corresponding to the second light guiding column 305, The fourth panel has a fourth light guiding window 310.

A part of the probe light F1 emitted by the transmitting device 301 is emitted from the first panel 100 via the first light guiding column 303 and the first light guiding window 307. When an object 401 approaches, the detecting light F1 passes through After the object 401 is reflected, the reflected light F2 is formed, and the reflected light F2 enters through the second light guiding window 308. After the second light guiding column 305, the photosensitive device 302 receives the reflected light F2; A part of the reflected light F3 emitted by the device 301 is changed from the first light guide adjusting layer 304 to the optical path, and then emitted from the second panel 200 through the first light guiding rod 303 and the third light guiding window 309. When the object 402 is approaching, the probe light F3 is reflected by the object 402 to form reflected light F4, and the reflected light F4 enters through the fourth light guiding window 310, passes through the second light guiding column 305, and passes through the second The optical path adjustment layer 305 changes the optical path, and the photosensitive device 302 receives the reflected light F4.

In some embodiments, in conjunction with FIG. 2 and FIG. 3, the surface of the touch display area 101 of the electronic device can be transparent, and the non-touch display area 102 can be blocked by a color coating, and each guide The light window (307-310) has a coating that is capable of conducting the probe light.

In some embodiments, the probe light is infrared detection light, and the coating on the emission device 301 may be invisible but transparent to the infrared detection light (the light guide window above the emitter is not visible) to reduce the emission device 301. The loss of the detected light, the photosensitive device 302 can be transparent through the coating on the light guiding window to receive the reflected light, and reducing the visible window can further improve the overall aesthetics of the electronic device.

In order to ensure that the detection light or the reflected light can effectively pass through the corresponding light guiding window and reduce the light amount loss, the opening size of the light guiding window may be set smaller than the size corresponding to the corresponding light guiding column, that is, the first light guiding window. The diameter H1 of the 307 is smaller than the cross-sectional dimension H1' of the first light guiding column 303 adjacent thereto, and the diameter H2 of the second light guiding window 308 is smaller than the cross-sectional dimension H2' of the second light guiding column 305 adjacent thereto, and the third light guiding window 309 The diameter H3 is smaller than the cross-sectional dimension H3' of the first light guiding column 303 adjacent thereto, and the diameter H4 of the fourth light guiding window 310 is smaller than the cross-sectional dimension H4' of the second light guiding column 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 the proximity to the second panel 200. The direction of the reflected light reflected by the object 401 reaches the photosensitive device 306.

FIG. 5 illustrates a schematic structural view of a first optical path adjustment layer 304 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. A refractive layer 304a is disposed between the first light guiding column 303 and the first reflective layer 304b. 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 PET (polyethylene terephthalate).

By adjusting the sawtooth angle of the first refractive layer 304a, the optical path of the probe light can be adjusted, and by adjusting the refractive index of the first refractive layer 304a, the amount of light emitted from the probe light can be further adjusted.

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 (polyethylene terephthalate). The structure and material of the second reflective layer refer to the structure and material of the first reflective layer, and the structure and material of the second refractive layer refer to the structure and material of the first reflective layer. Similarly, by adjusting the sawtooth angle of the second refractive layer, The optical path of the reflected light can be adjusted, and by adjusting the light guiding rate of the second refractive layer, the amount of received reflected light can be further adjusted.

In some embodiments, with continued reference to FIG. 2, the electronic device further includes a circuit board 311 and a processor (not shown), the processor may be connected to the circuit board 311 by wires, 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 transmitting device 301 and the photosensitive device 302 are disposed adjacent to the circuit board 311; The board 311 receives an electrical signal converted by the photosensitive device 302 to the reflected light received by the photosensitive device 302, and the circuit board 311 transmits the electrical signal to the processor, and the processor receives and analyzes the amount of reflected light of the circuit board. To determine whether an object is close to the electronic device, and determine whether an object approaches the first panel, an object approaches the second panel, or an object simultaneously approaches the first panel 100 and the second panel 200, respectively, the light shielding panel 312 is disposed on In a space between the first panel 100 and the second panel 200, and disposed around the emitting device 301, around the photosensitive device 302, and between the emitting device 301 and the photosensitive device 302, Screen The disturbance light emitting device and a sensing device, the shield plate 312 may be secured with adhesive to the first panel 100 and the second panel 200 through the shading.

In order to be able to distinguish whether the light received by the photosensitive device 302 is the reflected light passing through the first panel 100 or the reflected light of the second panel 200, or both reflect the reflected light. In some embodiments, the light guiding ratios of the first light guiding column 303, the first light path adjusting layer 304, the second light guiding column 305, and the second adjusting layer 306 are satisfied: the photosensitive device 302 The received light amount of the reflected light reflected by the object close to the second panel 200 is smaller than the received light amount minimum of the reflected light reflected by the object 401 close to the first panel 100; The maximum amount of light of the reflected light received by the photosensitive device 302 via the object 401 close to the first panel 100 is smaller than the received reflected light reflected by the object 401 of the second panel 200. The minimum amount of light is the sum of the minimum amount of light of the reflected light reflected by the object 401 close to the first panel 100.

Adjusting the materials of the first light guiding column 303, the first light path adjusting layer 304, the second light guiding column 305 and the second adjusting layer 306 can adjust the light guiding ratio of each layer to meet the above conditions. .

Referring to FIG. 6, using the electronic device described in some of the foregoing embodiments, the process of detecting object proximity is as follows. under:

The electronic device includes: a first panel and a second panel, a transmitting device and a photosensitive device, a first light guiding column, a first light path adjusting layer, a second light guiding column, and a second light path adjusting layer;

First, in step 501, the transmitting device emits probe light, part of the probe light is emitted from the first panel through the first light guiding column, and part of the detecting light is adjusted through the first optical path adjusting layer and through the a first light guiding rod is emitted from the second panel;

Next, in step 502, the photosensitive device receives reflected light reflected when the object approaches, the reflected light includes reflected light entering from the first panel and passing through the first light guiding column, and entering from the second panel and passing through The reflected light of the second optical path adjusting layer and the second light guiding column;

Next, in step 503, the electronic device detects the amount of reflected light received by the photosensitive device, determines whether an object is close according to the range of the amount of light of the reflected light, and determines that the object is close when the object approaches The first panel and/or the second panel.

Wherein, in step 503, the electronic device processes the received reflected light, and in response to detecting that the amount of the reflected light is in the first amount of light, determining that an object is in proximity to the first panel, wherein The first 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 first panel; in response to detecting that the light amount of the reflected light is in the second light amount range, determining An object is proximate to the second panel, wherein the second amount of light ranges is a range between a minimum and a maximum amount of light of the reflected light reflected by an object proximate the second panel; in response to detecting When the amount of light of the reflected light is in the third range of light, it is determined that an object approaches the first panel and an object approaches the second panel, wherein the third amount of light is reflected by an object approaching the first panel The minimum amount of light of the reflected light and the minimum of the amount of light of the reflected light reflected by an object close to the second panel, the reflection reflected by an object approaching the first panel a range between a maximum amount of light and a sum of maximum values of the amount of light reflected by an object approaching the second panel; wherein the amount of the reflected light reflected by an object approaching the second panel a maximum value is smaller than a minimum amount of light of the reflected light reflected by an object approaching the first panel, and a maximum amount of light of the reflected light passing through an object close to the first panel is less than, close to the second a minimum amount of light of the reflected light reflected by an object of the panel and the reflection reflected by an object approaching the first panel The sum of the minimum amount of light.

2, when there is no object of the first panel 100 and the second panel 200, there is almost no reflected light, and therefore, the amount of light received by the photosensitive device 302 is almost zero, when an object approaches the first panel. 100. The first light quantity of the reflected light received from the direction of the first panel 100 ranges from L ₁₁ to L ₁₂ (where L ₁₁ <L ₁₂ ), and when an object approaches the second panel 200, from the The second light amount of the reflected light received by the second panel 100 is in the range of L ₂₁ to L ₂₂ (where L ₂₁ < L ₂₂ ), and when an object approaches the first panel 100 and the second panel 200 simultaneously, the received light is received. The third amount of light of the reflected light ranges from (L ₂₁ + L ₁₁ ) to (L ₂₂ + L ₁₂ ). The proximity optical device is closer to the front surface, so the amount of reflected light reflected from the back surface is smaller than the amount of light approaching the front surface, and when the object is close to the double side, the amount of light is larger than the amount of light on one side, and the first light guide column and the first light path are adjusted in advance. Adjusting the light guiding ratio of the second light guiding column and the second light path adjusting layer such that L ₁₂ < L ₂₁ and L ₂₂ < (L ₂₁ + L ₁₁ ), the first light amount range, the second light amount range, and the third The light amount ranges do not overlap.

The photosensitive device can determine whether an object is close according to the amount of received reflected light, and determine whether an object is close according to which light amount the light quantity falls within, and determine that the object is close when the object approaches a first panel and/or the second panel.

In a specific embodiment, by adjusting the light guiding ratio of each structure, the first light amount range is set from L ₁₁ to L ₁₂ to (800 to 1000 uW/cm ² ), and the second light amount range is L ₂₁ to L ₂₂ ( 250 to 400 uw/cm ² ), and the third light amount range is (L ₂₁ + L ₁₁ ) to (L ₂₂ + L ₁₂ ) (1050 to 1400 uW/cm ² ).

When the amount of light received by the photosensitive device is L, for example, when L=300 uw/cm ² , falling within the second range of light amount, it is determined that the second panel 200 has an object approaching; for example, when L=900 uw/cm ² , falling on the first amount of light In the range, it is judged that there is an object approaching in the first panel 100; and, for example, when L=1200 uw/cm ² and falls in the third light amount range, it is judged that the first panel 100 and the second panel 200 have objects at the same time.

According to some embodiments, an electronic device for detecting the approach of an object, by using a transmitting device and a photosensitive device, adjusting the optical path direction of the probe light through the first light guiding rod and the first optical path adjusting layer, so that the detecting light can Ejecting from the first panel and the second panel respectively, adjusting an optical path direction of the reflected light by the first light guiding rod and the first optical path adjusting layer, so as to be able to receive an object close to the first panel and an object close to the second panel Reflected reflected light can realize both front and back of the electronic device Proximity sensing.

The electronic device uses the same set of proximity optical devices (one transmitting device and photosensitive device) to realize the double-sided inductive proximity function, thereby effectively saving cost, saving layout area, and reducing the complexity of internal layout of the device.

In conclusion, the above embodiments are only used to explain the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still The technical solutions described in the above embodiments are modified, or equivalent to some of the technical features are included; and the modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

An electronic device for detecting the proximity of an object, wherein the electronic device comprises:

a first panel and a second panel, the first panel and the second panel are disposed on opposite sides of the electronic device;

And a light emitting device disposed between the first panel and the second panel and facing the first panel, the emitting device is configured to emit probe light, and the photosensitive device is configured to receive reflected light, The reflected light is light reflected by the probe light through an object approaching the first panel of the electronic device and/or an object approaching a second panel of the electronic device;

a first light guiding column disposed on the light path of the detecting light;

a first optical path adjusting layer disposed on the first light guiding column for changing a direction of a portion of the detecting light to be emitted from the second panel;

a second light guiding column disposed on the light path of the reflected light;

And a second optical path adjusting layer disposed on the second light guiding column for changing a direction of the reflected light reflected by an object close to the second panel to reach the photosensitive device.
The electronic device of claim 1, wherein the first panel comprises a first light guiding window and a second light guiding window, the second panel comprising a third light guiding window and a fourth light guiding window, The first light guiding window is opposite to the position of the first light guiding column, the second light guiding window is opposite to the position of the second light guiding column, and the third light guiding window is opposite to the position of the first light guiding column, The fourth light guiding window is opposite to the position of the second light guiding column.
The electronic device according to claim 2, wherein a window size of said first light guiding window is smaller than a sectional size of a relative position of said first light guiding column, and a window size of said second light guiding window is smaller than a cross-sectional dimension of the second light guiding column adjacent to the second light guiding window, wherein a window size of the third light guiding window is smaller than a cross-sectional dimension of a relative position of the first light guiding window, and a window size of the fourth light guiding window is smaller than The cross-sectional dimension of the relative position of the second light guiding column.
The electronic device according to any one of claims 1 to 3, wherein the first optical path adjustment layer comprises: a first reflective layer and a first refractive layer, the first refractive layer being disposed on the first guide Between the light column and the first reflective layer;

The second optical path adjustment layer includes a second reflective layer and a second refractive layer, and the second refractive layer is disposed between the second light guiding column and the second reflective layer.
The electronic device according to claim 4, wherein the first reflective layer and the second reflective layer are silver plating layers, and the first refractive layer and the second refractive layer are resin layers.
The electronic device according to any one of claims 1 to 5, wherein a window size of the first light guiding window and the second light guiding window, the third light guiding window, and the fourth light guiding window, and the first The light guiding ratio of the light guiding column, the first light path adjusting layer, the second light guiding column and the second adjusting layer satisfies:

a first light quantity range of an object approaching the reflected light of the first panel, a second light quantity range of an object approaching the reflected light of the second panel, and a plurality of objects simultaneously approaching the first panel and the second panel The range of the third light amount range of the reflected light does not overlap.
The electronic device according to any one of claims 1 to 6, the electronic device further comprising:

a light shielding plate disposed in a space between the first panel and the second panel, and disposed around the emitting device, around the photosensitive device, and between the emitting device and the photosensitive device, To shield the interference light to the emitting 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 photosensitive device are disposed adjacent to the circuit board;

The processor receives the amount of light of the reflected light of the circuit board, and determines whether an object is in proximity to the electronic device and the approaching first panel and/or the second panel according to the received light amount.
The electronic device according to any one of claims 1 to 7, wherein the first panel and the second panel are both display panels.
The electronic device according to any one of claims 1 to 7, wherein the first panel is a display panel and the second panel is a housing.
The electronic device according to any one of claims 1 to 9, wherein the probe light is infrared light, the light emitting device is a light emitting diode, and the light sensing device is a light sensitive element.
An electronic device according to any one of claims 1 to 10 for detecting object approaching The method, wherein the method comprises:

The emitting device emits probe light, partially emitted from the first panel via the first light guiding column, partially adjusts an optical path through the first optical path adjusting layer, and is emitted from the second panel via the first light guiding column ;

The photosensitive device receives reflected light reflected when an object approaches, the reflected light includes reflected light entering from the first panel and passing through the first light guiding column, and entering from the second panel and passing through the second optical path adjusting layer And the reflected light of the second light guiding column;

Detecting an amount of reflected light received by the photosensitive device, determining whether an object is close according to a range of light amount of the amount of light of the reflected light, and determining that the first panel and the object are close to each other when an object approaches Or the second panel.
The method of claim 11 wherein the method further comprises:

Determining that an object approaches the first panel in response to detecting that the amount of light of the reflected light is within a first amount of light, wherein the first amount of light is a range of reflected light of an object approaching the first panel Range of light amount;

Determining that an object approaches the second panel in response to detecting that the amount of light of the reflected light is within a second range of light quantity, wherein the second amount of light is a range of reflected light of an object approaching the second panel Range of light amount;

Responding to detecting that the amount of light of the reflected light is in a third range of light amount, determining that an object approaches the first panel and an object approaches the second panel, wherein the third amount of light ranges from a plurality of objects simultaneously a range of light amounts of reflected light of the first panel and the second panel.