CN109814749A - A kind of pressure-detecting device, screen assembly and mobile terminal - Google Patents
A kind of pressure-detecting device, screen assembly and mobile terminal Download PDFInfo
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- CN109814749A CN109814749A CN201811548051.2A CN201811548051A CN109814749A CN 109814749 A CN109814749 A CN 109814749A CN 201811548051 A CN201811548051 A CN 201811548051A CN 109814749 A CN109814749 A CN 109814749A
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Abstract
The embodiment of the invention discloses a kind of pressure-detecting device, screen assembly and mobile terminals, the pressure-detecting device includes the substrate being arranged successively, light-emitting layer, light absorbing layer and photosensitive layer, wherein: the light-emitting layer is set to the one side of the substrate, and can emit the light of first frequency；The light absorbing layer includes the container to form enclosure space, and the absorbing liquid of the filling container, and the absorbing liquid at least absorbs the light of the part first frequency, and at least one side of the container is elastic surface；The photosurface of the photosensitive layer is used to detect the light of the first frequency across the light absorbing layer towards the light absorbing layer, the photosensitive layer.It by this method, may be implemented under the premise of guaranteeing detection accuracy, improve the sensitivity of pressure detecting, improve user experience.
Description
Technical field
The present invention relates to electronic technology field more particularly to a kind of pressure-detecting devices, screen assembly and mobile terminal.
Background technique
With the fast development of electronic technology and multimedia information technology, using more frequent in people's life and work
Computer (such as tablet computer), mobile phone, a variety of electronic products of automobile navigation instrument, have begun using touch screen and replace
Traditional keyboard, mouse etc. complete input control, and touch screen technology simplifies operating process of the people to electronic product, tool
There is preferable user experience.
Infrared emission and reception can be arranged in the X and Y-direction of screen in touch screen based in a manner of infrared touch
Matrix, the transmitting infrared light that can continue are scanned screen, when user presses touch screen by finger, in finger
The position of pressing can stop the transmission of infrared light, and receiving end can not receive infrared light, and controller can pass through at this time
Detection to infrared light on X and Y-direction obtains the position coordinates of infrared light transmission gap, so that it is determined that user's finger
Pressing position.
But in a manner of infrared touch based on touch screen in use, infrared light be easy to produce reflection,
The problems such as reflecting veiling glare causes user when using touch screen, and touch screen reacts insensitive, user experience to the operation of user
It is poor.
Summary of the invention
The purpose of the embodiment of the present invention is that a kind of pressure-detecting device, screen assembly and mobile terminal are provided, it is existing to solve
There is touch screen flexibility in technology lower, the poor problem of user experience.
In order to solve the above technical problems, the embodiments of the present invention are implemented as follows:
In a first aspect, a kind of pressure-detecting device provided in an embodiment of the present invention, which is characterized in that the pressure detecting
Device includes the substrate being arranged successively, light-emitting layer, light absorbing layer and photosensitive layer, in which:
The light-emitting layer is set to the one side of the substrate, and can emit the light of first frequency；
The light absorbing layer includes the container to form enclosure space, and the absorbing liquid of the filling container, the absorption
Liquid at least absorbs the light of the part first frequency, and at least one side of the container is elastic surface；
The photosurface of the photosensitive layer is towards the light absorbing layer, and the photosensitive layer is for detecting across the light absorption
The light of the first frequency of layer.
Optionally, the pressure-detecting device further includes light shield layer, and the light shield layer is set to the photosensitive of the photosensitive layer
The back side in face.
It optionally, is elastic surface towards the side of the light absorbing layer in the container, towards the light in the container
The side of emission layer is non-resilient face.
Optionally, the light transmittance of the container is higher than predetermined light transmittance threshold value.
Optionally, the absorbing liquid is to the uptake of the first frequency light and the light of the first frequency in the suction
The distance passed through in liquid is received to be positively correlated.
Optionally, be provided with detector and photosensitive piece multiple on the photosensitive layer, the multiple photosensitive piece respectively with it is described
Detector is connected, the light intensity of the described photosensitive block light for detecting the first frequency, and the light intensity that will test is converted into
Electric current, the detector are used to determine that light intensity changes corresponding photosensitive piece of the position based on the variation of the electric current.
Optionally, the light shield layer is for stopping the light of scheduled frequency range to pass through.
Optionally, the light shield layer includes basement membrane and Anti-reflective coating, and the refractive index of the Anti-reflective coating is greater than the folding of the basement membrane
Rate is penetrated, for the thickness of the Anti-reflective coating in predetermined thickness range, the basement membrane is set to the upper layer of the photosensitive layer, the base
The upper layer of film is provided with the Anti-reflective coating.
Optionally, the Anti-reflective coating with a thickness ofOdd-multiple.
Optionally, the light of the first frequency is black light.
Second aspect, the embodiment of the invention provides a kind of screen assembly is provided, including as described in above-mentioned first aspect
Pressure-detecting device.
The third aspect, the embodiment of the invention provides a kind of mobile terminal is provided, including as described in above-mentioned second aspect
Screen assembly.
By the above technical solution provided in an embodiment of the present invention as it can be seen that pressure-detecting device provided in an embodiment of the present invention,
Screen assembly and mobile terminal, the pressure-detecting device include the substrate being arranged successively, light-emitting layer, light absorbing layer and sense
Photosphere, in which: light-emitting layer is set to the one side of the substrate, and can emit the light of first frequency, and light absorbing layer includes being formed
The container of enclosure space, and the absorbing liquid of filling container, absorbing liquid at least absorb the light of the part first frequency, container
At least one side be elastic surface, the photosurface of photosensitive layer is towards light absorbing layer, and photosensitive layer is for detecting across light absorbing layer
The light of first frequency, in this way, the structure based on above-mentioned pressure-detecting device, it can be by the absorbing liquid of light absorbing layer to first
The light of frequency is partially absorbed, and is being detected by photosensitive layer to the light of first frequency for passing through container, so as to
Under the premise of guaranteeing detection accuracy, the sensitivity of pressure detecting is improved, improves user experience.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
The some embodiments recorded in the present invention, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of pressure-detecting device of the application；
Fig. 2 is the structural schematic diagram of another pressure-detecting device of the application；
Fig. 3 is a kind of structural schematic diagram of photosensitive layer of the application；
Fig. 4 is the structural schematic diagram of the application a kind of photosensitive layer and light shield layer；
Fig. 5 is a kind of structural schematic diagram of light shield layer of the application；
Fig. 6 is a kind of flow chart of pressure detection method embodiment of the application；
Fig. 7 is a kind of schematic diagram for receiving pressure and generating deformation of the application；
Fig. 8 is the flow chart of the application another kind pressure detection method embodiment；
Fig. 9 is a kind of mobile terminal embodiment of the application.
Marginal data:
100- substrate, 200- light-emitting layer, 300- light absorbing layer, 301- container, the elastic surface of 3011- container, 302- inhale
Receipts liquid, 400- photosensitive layer, photosensitive piece of 401-, 402- detector, 500- light shield layer, 501- Anti-reflective coating, 502- basement membrane.
Specific embodiment
The embodiment of the present invention provides a kind of pressure-detecting device, screen assembly and mobile terminal.
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained without creative efforts, all should belong to this hair
The range of bright protection.
Embodiment one
The embodiment of the present invention provides a kind of pressure-detecting device member, as shown in Figure 1, the pressure-detecting device includes photosensitive
Layer 400, light absorbing layer 300, light-emitting layer 200 and substrate 100, in which:
Substrate 100 is located at the lowest level of pressure-detecting device, can be used for carrying, is fixed, powering and control etc., substrate
100 can be glass plate, metal plate or plastic plate, and it is not limited in the embodiment of the present invention.
Light-emitting layer 200 is fixed on the one side of substrate 100, can be made of multiple continuously arranged light emitters,
Multiple light emitters can form array on the substrate 100, and the arrangement mode of multiple light emitters on the substrate 100 can
To be diversified.Power supply circuit can be set in substrate 100, can be more in light source layer 200 by power supply circuit
A light emitters power supply.Wherein, the light-emitting layer of the multiple light emitters composition arranged on substrate 100 can issue the
One frequency (such as f0) light, wherein the light of first frequency can be the infrared light in scheduled frequency range.
After one or more transmitters on light-emitting layer 200 issue the light of first frequency, the light of first frequency need to be worn
It crosses and is connected with light-emitting layer 200 or unconnected light absorbing layer 300, then reach photosensitive layer 400.Wherein, light absorbing layer
300 may include forming the container 301 of enclosure space, and the absorbing liquid 302 of filling container 301, absorbing liquid 302 can be down to
The light of part first frequency is absorbed less, and the one side of container 301 can be elastic surface 3011,3011 phase of elastic surface with container
Pair one side can be non-resilient face or elastic surface.Wherein, container 301 can be closed collet, the elastic surface of container
3011 can be jackets outer wall, and the non-resilient face of container 301 can be jackets inner wall, and the elastic surface 3011 of container can be with light
Emission layer 200 is connected, and the elastic surface 3011 of container and the non-resilient face of container 301 have preferable translucency, to ensure
The light of first frequency passes through non-resilient face and reaches absorbing liquid 302, and the light of first frequency penetrates container after passing through absorbing liquid 302
Elastic surface 3011 reach photosensitive layer 300.The non-resilient face intensity with higher of container 301, it is not easy to which deformation occurs, holds
The elastic surface 3011 of device need to have preferable elasticity, and when receiving ambient pressure, the elastic surface 3011 of container can be because of stress
And deformation is generated, after external force removes, the elastic surface 3011 of container can recover immediately original-shape, meanwhile, the elasticity of container
Face 3011 also has preferable durability, since pressure-detecting device produces mainly for detection of with ambient pressure size variation
The intensity of the infrared light for changing, so, the elastic surface 3011 of container is because with preferable durability, so will not be because of
Long period more frequently presses and reduces light transmittance.
Another way, container may include multiple sub- containers, be filled with absorbing liquid in each sub- container.It can have
Flexible face and non-resilient face.When container is made of multiple sub- containers, the amount of absorbing liquid is not too large in every sub- container,
It is influenced to reduce by gravity, detection accuracy can be improved.
The absorbing liquid 302 stored in container 301 can be a kind of couple of specific frequency (such as first frequency f0) or in predetermined
The light of frequency in frequency range has the liquid of certain absorption, and absorbing liquid 302 does not have absorption to visible light, and
It will not influence the direction of propagation of light.After the light of first frequency passes through container 301 for being stored with absorbing liquid 302, reach photosensitive
Layer 400, photosensitive layer 400 is connected with the elastic surface 3011 of container, and photosensitive layer 400 can be to specific frequency or in predetermined
The light of frequency in frequency range generates the film of induction.Photosensitive layer 400 has preferable elasticity, durability and light resistance.
Photosensitive layer 400 can have fuel factor and photoelectric effect etc. to the detection mode of the light of first frequency, wherein pass through electricresistance effect
Detection light may is that the material when the illumination of first frequency is mapped to photosensitive layer 400, on photosensitive layer 400 because absorbing first
The light of frequency and cause temperature to rise, thus cause resistance variations, thus reach detection first frequency light intensity mesh
's；It may is that by the light that photoelectric effect detects first frequency when the material on photosensitive layer 400 absorbs the light of first frequency
Afterwards, since photoelectric effect produces photoelectron, so as to form the variation of electric current, detection light has been achieved the purpose that.Except passing through heat
, can also be there are many detection mode outside effect and photoelectric effect detect the light of first frequency, it can be according to specifically answering
Different with scene, it is not limited in the embodiment of the present invention.
Substrate 100 is the power supply of light-emitting layer 200, the sustainable light for issuing first frequency of light-emitting layer 200, wherein first
The light of frequency can be the infrared light in particular frequency range, and the light for the first frequency that light-emitting layer 200 issues can be worn
The non-resilient face for crossing the container 301 of light absorbing layer 300 reaches absorbing liquid 302, when passing through absorbing liquid 302, part or all of the
The light of one frequency can be absorbed, and the light of unabsorbed first frequency reaches photosensitive layer 400, and photosensitive layer 400 is detecting first
After the light of frequency, resistance variations or photoelectron are generated, so as to cause the variation of electric current.When finger or other object press pressures
When detection device, the photosensitive layer 400 of pressure-detecting device, the elastic surface of container 301 can produce Dish deformation, in recess
The thickness of position, absorbing liquid 302 becomes smaller, correspondingly, the absorbed part of the light of first frequency in this position is reduced, reaches
The light intensity of photosensitive layer 400 increases, and the resistance or photoelectron generated on corresponding position is varied, to generate curent change letter
Number.
A kind of pressure-detecting device provided in an embodiment of the present invention includes the substrate, light-emitting layer, light absorption being arranged successively
Layer and photosensitive layer, in which: light-emitting layer is set to the one side of the substrate, and can emit the light of first frequency, light absorbing layer packet
The container to form enclosure space is included, and the absorbing liquid of filling container, absorbing liquid at least absorb the light of part first frequency, hold
At least one side of device is elastic surface, and the photosurface of photosensitive layer is towards light absorbing layer, and photosensitive layer is for detecting across light absorbing layer
First frequency light, in this way, the structure based on above-mentioned pressure-detecting device, can reduce environment light pair by photosensitive layer
The structure of the interference of pressure-detecting device, light-emitting layer and absorbing liquid can improve pressure under the premise of guaranteeing detection accuracy
The sensitivity for incuding lower light detection, improves user experience.
Embodiment two
The embodiment of the present invention provides another pressure-detecting device.The pressure-detecting device contains pressure shown in FIG. 1
The all functional units of detection device, and on its basis, it is improved, it is as follows to improve content:
As shown in Fig. 2, the back side in photosensitive layer 400 may be provided with light shield layer 500, light shield layer 500 is mainly used for stopping outer
Interference of boundary's light to pressure-detecting device, the detection for avoiding the interference due to ambient and reducing pressure-detecting device are smart
Degree, also elasticity with higher and durability, light shield layer 500 can stop the light of first frequency to pass through light shield layer to light shield layer 500
500, while the internal light for nor affecting on pressure-detecting device passes through light shield layer 500.
The light transmittance of light absorbing layer can be higher than predetermined light transmittance threshold value, and the light transmittance of light absorbing layer is with the change of deformation
Rate can be less than predetermined variation rate threshold value.Wherein, light transmittance can be the ability for indicating that light penetrates medium, be through light
The light (infrared light of such as first frequency) of the first frequency of absorbed layer and inject light absorbing layer first frequency light (such as the
The infrared light of one frequency) percentage, the light transmittance of light absorbing layer is bigger, then the translucency of light absorbing layer is better, so being
Guarantee that the accuracy of pressure-detecting device, the light transmittance of light absorbing layer need to be greater than scheduled light transmittance threshold value, penetrate light to ensure
The quantity of the infrared light of the first frequency of absorbed layer, meanwhile, the light transmittance of light absorbing layer can be less than with the change rate of deformation
Predetermined variation rate threshold value, if the light transmittance of light absorbing layer is higher than predetermined variation rate threshold value with the change rate of deformation, light is inhaled
The light transmittance for receiving layer is smaller with the variation degree of deformation, that is, variation of the light transmittance of light absorbing layer to the deformation of light absorbing layer
Insensitive, this, which will lead to pressure-detecting device, reduces the susceptibility of pressure, and it is poor to cause stress detection device sensitivity,
So the light transmittance of light absorbing layer can be less than predetermined variation rate threshold value with the change rate of deformation.
Absorbing liquid 400 can be used for absorbing the light (infrared light such as in scheduled frequency range) of first frequency, work as base
The multiple infrared transmitters arranged on plate 100 launch first frequency (such as specific frequency f0) infrared light when, sending it is red
UV light needs guiding through absorbing liquid 302, at this point, the infrared light in scheduled frequency range can be absorbed in absorbing liquid 302, while right
Visible light does not influence the direction of propagation of light without absorption.
In addition, absorbing liquid 302 to the uptake of infrared light and infrared light pass through in absorbing liquid 302 at a distance from just
It is related.Absorbing liquid 302 to the uptake of infrared light and infrared light pass through in absorbing liquid 302 at a distance from just comparing, that is, inhale
The thickness for receiving liquid 302 is bigger, and stronger to the absorption of infrared light, the intensity for penetrating the infrared light of absorbing liquid 302 is lower,
For example, absorbing liquid 302 passes through the proportionality coefficient of distance to the degree of absorption and infrared light of infrared light in absorbing liquid 302
Be 2, if that the infrared light of 6 unit strengths needed in absorbing liquid 302 by distance be 1, then absorbing liquid 302 can
To absorb the infrared light of 2 units, there was only 4 units by the infrared light of the absorbing liquid 302, if absorbing liquid 302 is right
The degree of absorption and infrared light of infrared light are 4 by the proportionality coefficient of distance in absorbing liquid 302, if that 6 lists
Position intensity infrared light needed in absorbing liquid 302 by distance be 1, then the red of 4 units can be absorbed in absorbing liquid 302
UV light only has 2 units by the infrared light of the absorbing liquid 302.In addition, absorption energy of the absorbing liquid 302 to infrared light
Power is unrelated with environment temperature locating for pressure-detecting device, in this way, the environment resistant interference performance of light detection can be improved, protects
Demonstrate,prove the accuracy of detection.
Detector 402 and photosensitive piece 401 multiple can be set on photosensitive layer 400, as shown in figure 3, multiple photosensitive pieces
401 can be arranged on photosensitive layer 400 by scheduled arrangement mode, constitute photosensitive array, each photosensitive piece 401 can
It is connected to detector 402 to draw a lead, detector 402 can become according to the electric current on photosensitive piece 401 monitored
Change, to determine the position of infrared light intensity variation.Wherein, it is located at the upper layer of the elastic surface of container 301 for photosensitive piece 401.Work as inspection
When measuring generation pressure on pressure-detecting device, will lead to container 301 in the position for generating pressure, deformation occurs, due to container
301, which have occurred deformation, will lead to the change of 302 thickness of absorbing liquid on corresponding position, and the variation that 302 thickness of absorbing liquid generates can shadow
Its ability for absorbing infrared light is rung, thus the variation that can detect infrared light for photosensitive piece 401 will lead to photosensitive piece 401
The variation of upper electric current, at this point, detector 402 can monitor changed photosensitive piece 401 of the position of electric current, so that it is determined that
The position that pressure generates on pressure-detecting device.For example, in Fig. 3, photosensitive piece 4011, photosensitive piece photosensitive piece 4019 of 4012...
Etc. multiple photosensitive pieces 401 at array arrangement on photosensitive layer 400, each photosensitive piece 401 is connected to detector 402 by lead,
If detector 402 monitors to produce the variation of electric current on photosensitive piece 4012 of position, thus it is assured that at photosensitive piece
4011 and photosensitive piece 4012 of position on, produce the variation of light intensity, i.e., connect on photosensitive piece 4011 and photosensitive piece 4012 of position
Ambient pressure is received.
As shown in Fig. 2, light shield layer 500 is located at the back side of photosensitive layer 400, photosensitive layer 400 is located at the upper layer of container 301, when
After infrared light passes through container 301, infrared light can reach photosensitive layer 400, and photosensitive layer 400 hides for detecting infrared light
Photosphere 500 can be used for stopping extraneous light interference, avoid on the Infrared irradiation to photosensitive layer 400 in ambient, shadow
Ring the judgement of the practical infrared light variation of 400 pairs of photosensitive layer.
As shown in figure 5, light shield layer 500 may include basement membrane 502 and Anti-reflective coating 501, the refractive index of Anti-reflective coating 501 can be with
Greater than the refractive index of basement membrane 502, the thickness of Anti-reflective coating 501 can be in predetermined thickness range, and basement membrane 502 is set to photosensitive layer
400 upper layer, the upper layer of basement membrane 502 are provided with Anti-reflective coating 501.Refractive index of the infrared light in outside air is n0, infrared
Refractive index of the light in Anti-reflective coating 502 is n1, refractive index of the infrared light in basement membrane 502 is n2, when extraneous infrared light
When line is irradiated to pressure-detecting device from air, it may occur that refraction and reflection as shown in Figure 5, infrared light can increase instead
The two sides of film 501 form a series of light beams being parallel to each other, and meet fresnel formula:
Wherein, the R in above-mentioned formula is the reflectivity of Anti-reflective coating 502, i.e., the intensity of reflection light and throw light is strong
The ratio between degree,For the phase difference between adjacent two-beam line.
As the refractive index n of Anti-reflective coating 5011Greater than the refractive index n of basement membrane 5022, and the thickness h of Anti-reflective coating 501 is
Odd-multiple when, there is maximum value in reflectivity R, and the intensity of reflection light is much larger than the intensity of transmitted ray, so that it may think outer
Frequency is f in boundary's air mid-infrared light line0Infrared light all reflected.
Substrate 100 is the power supply of light-emitting layer 200, the sustainable light for issuing first frequency of light-emitting layer 200, wherein first
The light of frequency can be the infrared light in particular frequency range, and the light for the first frequency that light-emitting layer 200 issues can pass through
The non-resilient face of the container 301 of light absorbing layer 300 reaches absorbing liquid 302, when passing through absorbing liquid 302, part first frequency
Light can be absorbed, and the slap on the face of unabsorbed first frequency reaches photosensitive piece 401 pairs first on 400 photosensitive layer 400 of photosensitive layer
The light of frequency is incuded, and is generated resistance variations or photoelectron, is transferred current to detector 402 by lead.When finger or
When other object press pressure detection devices, the elasticity of the light shield layer 500 of pressure-detecting device, photosensitive layer 400 and container 301
Face can produce Dish deformation, and in the position of recess, the thickness of absorbing liquid 302 becomes smaller, correspondingly, the first frequency in this position
The absorbed part of the light of rate is reduced, and the light intensity for reaching photosensitive layer 400 increases, the resistance of photosensitive piece 401 generation on corresponding position
Or photoelectron is varied, to generate current changing signal, detector 402 after getting the current signal of variation, according to
The case where curent change, issues corresponding control instruction.
A kind of pressure-detecting device provided in an embodiment of the present invention includes the substrate, light-emitting layer, light absorption being arranged successively
Layer and photosensitive layer, in which: light-emitting layer is set to the one side of the substrate, and can emit the light of first frequency, light absorbing layer packet
The container to form enclosure space is included, and the absorbing liquid of filling container, absorbing liquid at least absorb the light of part first frequency, hold
At least one side of device is elastic surface, and the photosurface of photosensitive layer is towards light absorbing layer, and photosensitive layer is for detecting across light absorbing layer
First frequency light, in this way, the structure based on above-mentioned pressure-detecting device, can reduce environment light pair by light shield layer
The structure of the interference of pressure-detecting device, light-emitting layer and absorbing liquid can improve pressure under the premise of guaranteeing detection accuracy
The sensitivity for incuding lower light detection, improves user experience.
Embodiment three
The above are a kind of pressure-detecting devices provided in an embodiment of the present invention, function based on the pressure-detecting device and
Its composed structure, the embodiment of the present invention also provide a kind of pressure detection method, and the executing subject of this method can be mobile whole
It holds, may include in the mobile terminal such as the pressure-detecting device in above-described embodiment one and embodiment two, wherein the movement
Terminal can such as mobile phone, tablet computer, the mobile terminal which can use for user.As shown in fig. 6, the party
Method can specifically include following steps:
In step S602, the case where deformation occurs of container 301 in pressure-detecting device in detecting mobile terminal
Under, obtain the light intensity that photosensitive layer 400 receives after deformation occurs of container 301.
In an implementation, as the light-emitting layer 200 in Fig. 7 (a) pressure-detecting device can continue transmitting specific frequency (such as f0)
Infrared light, or transmitting infrared light pulse be scanned, infrared light pass through container 301 non-resilient face, reach inhale
Liquid 302 is received, can partially be absorbed by the absorbing liquid 302 in container 301, photosensitive layer 400 can be to the infrared light for passing through absorbing liquid 302
Line is detected, and can be generated resistance variations according to infrared light or be generated photoelectron, so as to cause the variation of electric current.
When detector 402 can recorde pressure-detecting device and not receive pressure, each photosensitive piece 401 of reference current I0,
I0It can be the current value of preset fixation, it can also more new data when being corrected to pressure-detecting device.Such as Fig. 7
(b) shown in, when pressure-detecting device receives ambient pressure, the elastic surface 3011 of light shield layer 500, photosensitive layer 400 and container
Recess can be generated, is reduced in the thickness of recess absorbing liquid 302, the absorbed part of infrared light is reduced, and photosensitive layer is reached
400 light intensity increases, and obtains light intensity at this time, as light intensity of the container 301 after deformation occurs.
In step s 604, the curent change according to light intensity, after determining container 301 deformation occurs.
In an implementation, it according to the light intensity before and after the deformation of step S602 acquisition, determines on 301 corresponding position of container
Electric current variation.
In step S606, according to curent change, the location information that deformation occurs of container 301 is determined, and to location information
Target object at corresponding position executes corresponding control strategy.
Wherein, target object can be application, control object (determining, deletion, editor etc.), object picture, text
The object of control strategy arbitrarily may be implemented in object etc., and control strategy can be any strategy such as deletion, editor, opening.
In an implementation, detector analyzes curent change, determines on pressure-detecting device, and shape occurs for container 301
The location information of change determines target object according to the location information, obtains the corresponding control strategy of the target object, and execute
The control strategy.For example, the position in case of deformation is photosensitive piece of 4012 corresponding positions, and photosensitive piece right in Fig. 3
The target object answered is camera applications, then corresponding control strategy is to open camera applications, when (photosensitive piece 4012 pairs of the position
The position answered) when deformation occurs, execute the control strategy for opening camera applications.
In addition, according to the situation of change of electric current, to the target object on identical position, different control can be taken
Strategy, for example, camera applications can be executed when curent change is greater than certain threshold value and the control strategies such as delete or reset, when
When curent change is less than certain threshold value, it can be opening camera applications.
The embodiment of the present invention provides a kind of method of pressure detecting, and this method can be applied to mobile terminal, and the movement is whole
End include pressure-detecting device, the pressure-detecting device may include the substrate being arranged successively, light-emitting layer, light absorbing layer and
Photosensitive layer, in which: light-emitting layer is set to the one side of the substrate, and can emit the light of first frequency, and light absorbing layer includes shape
The light of part first frequency is at least absorbed at the container of enclosure space, and the absorbing liquid of filling container, absorbing liquid, container
At least one side is elastic surface, and towards light absorbing layer, photosensitive layer is used to detect the across light absorbing layer for the photosurface of photosensitive layer
The light of one frequency, in this way, the structure based on above-mentioned pressure-detecting device, can reduce environment light to pressure by photosensitive layer
The structure of the interference of detection device, light-emitting layer and absorbing liquid can improve pressure sensitive under the premise of guaranteeing detection accuracy
The sensitivity of lower light detection, improves user experience.
Example IV
As shown in figure 8, the embodiment of the present invention provides a kind of pressure detection method, the executing subject of this method can be shifting
Terminal is moved, may include in the mobile terminal such as the pressure-detecting device in above-described embodiment one and embodiment two, wherein should
Mobile terminal can such as mobile phone, tablet computer, the mobile terminal which can use for user.This method is specific
It may comprise steps of:
In step S802, the case where deformation occurs of container 301 in pressure-detecting device in detecting mobile terminal
Under, obtain the light intensity that photosensitive layer 400 receives after deformation occurs of container 301.
The concrete processing procedure of above-mentioned steps S802 may refer to the related content of step S602 in above-described embodiment three,
Details are not described herein.
In step S804, according to light intensity, corresponding target current is determined.
Electricity in step S806, according to target current and scheduled reference current, after determining container 301 deformation occurs
Rheology.
In an implementation, scheduled reference current can be electric current when not generating deformation, for example, in Fig. 7, when in Fig. 7
(a) it generates deformation on the basis of, is formed under the deformed condition in Fig. 7 (b), electric current of the container 301 after deformation occurs becomes at this time
Change, i.e., for by the corresponding electric current I of Fig. 7 (b) generation deformation1Electric current I corresponding with Fig. 7 (a)0Current differential, at this point, scheduled
Reference current is I0, target current I1。
Further, it is also possible to according to target current electric current corresponding with the light intensity that the last time obtains, specific processing step
It is as follows:
In step S808, according to target current electric current corresponding with the light intensity that the last time obtains, container is determined
301 curent change after deformation occurs
In an implementation, such as continue the deformed condition that deformation occurs, in formation Fig. 7 (c) on the basis of Fig. 7 (b), at this point,
Scheduled reference current is that Fig. 7 (b) generates the corresponding electric current I of deformation1, target current is that Fig. 7 (c) generation deformation is corresponding
Electric current I2, current change quantity is just I at this time2With I1Difference.
In step S810, according to curent change, the location information that deformation occurs of container 301 is determined, and to location information
Target object at corresponding position executes corresponding control strategy.
The concrete processing procedure of above-mentioned steps S810 may refer to the related content of step S606 in above-described embodiment three,
Details are not described herein.
The embodiment of the present invention provides a kind of method of pressure detecting, and this method can be applied to mobile terminal, and the movement is whole
End include pressure-detecting device, the pressure-detecting device may include the substrate being arranged successively, light-emitting layer, light absorbing layer and
Photosensitive layer, in which: light-emitting layer is set to the one side of the substrate, and can emit the light of first frequency, and light absorbing layer includes shape
The light of part first frequency is at least absorbed at the container of enclosure space, and the absorbing liquid of filling container, absorbing liquid, container
At least one side is elastic surface, and towards light absorbing layer, photosensitive layer is used to detect the across light absorbing layer for the photosurface of photosensitive layer
The light of one frequency, in this way, the structure based on above-mentioned pressure-detecting device, can reduce environment light to pressure by photosensitive layer
The structure of the interference of detection device, light-emitting layer and absorbing liquid can improve pressure sensitive under the premise of guaranteeing detection accuracy
The sensitivity of lower light detection, improves user experience.
Embodiment five
The above are pressure-detecting devices provided in an embodiment of the present invention, are based on same thinking, and the embodiment of the present invention also mentions
For a kind of screen assembly.
The screen assembly includes any pressure-detecting device as described in above-described embodiment one and embodiment two, described
Pressure-detecting device includes the substrate being arranged successively, light-emitting layer, light absorbing layer and photosensitive layer, in which:
The light-emitting layer is set to the one side of the substrate, and can emit the light of first frequency；
The light absorbing layer includes the container to form enclosure space, and the absorbing liquid of the filling container, the absorption
Liquid at least absorbs the light of the part first frequency, and at least one side of the container is elastic surface；
The photosurface of the photosensitive layer is towards the light absorbing layer, and the photosensitive layer is for detecting across the light absorption
The light of the first frequency of layer.
In embodiments of the present invention, the pressure-detecting device further includes light shield layer, and the light shield layer is set to the sense
The back side of the photosurface of photosphere.
It in embodiments of the present invention, is elastic surface towards the side of the light absorbing layer in the container, in the container
It is non-resilient face towards the side of the light-emitting layer.
In embodiments of the present invention, the light transmittance of the container is higher than predetermined light transmittance threshold value.
The absorbing liquid is to the uptake of the first frequency light and the light of the first frequency in embodiments of the present invention
The distance passed through in the absorbing liquid is positively correlated.
In embodiments of the present invention, it is provided with detector and photosensitive piece multiple on the photosensitive layer, the multiple photosensitive piece
It is connected respectively with the detector, the light intensity of the described photosensitive block light for detecting the first frequency, and will test
Light intensity is converted into electric current, and the detector is used to determine that light intensity variation is described photosensitive piece corresponding based on the variation of the electric current
Position.
In embodiments of the present invention, the light shield layer is for stopping the light of scheduled frequency range to pass through.
In embodiments of the present invention, the light shield layer includes basement membrane and Anti-reflective coating, and the refractive index of the Anti-reflective coating is greater than institute
The refractive index of basement membrane is stated, for the thickness of the Anti-reflective coating in predetermined thickness range, the basement membrane is set to the upper of the photosensitive layer
Layer, the upper layer of the basement membrane is provided with the Anti-reflective coating.
In embodiments of the present invention, the Anti-reflective coating with a thickness ofOdd-multiple.
The embodiment of the present invention provides a kind of screen assembly, including the pressure-detecting device as described in above-described embodiment, the pressure
Force checking device may include the substrate being arranged successively, light-emitting layer, light absorbing layer and photosensitive layer, in which: light-emitting layer is set to
The one side of the substrate, and the light of first frequency can be emitted, light absorbing layer includes the container to form enclosure space, and is filled out
The absorbing liquid of container is filled, absorbing liquid at least absorbs the light of part first frequency, and at least one side of container is elastic surface, photosensitive
The photosurface of layer is used to detect the light of the first frequency across light absorbing layer towards light absorbing layer, photosensitive layer, in this way, based on upper
The structure of pressure-detecting device is stated, interference of the environment light to pressure-detecting device, light-emitting layer can be reduced by photosensitive layer
The sensitivity that light detects under pressure sensitive can be improved under the premise of guaranteeing detection accuracy with the structure of absorbing liquid, improved
User experience.
Embodiment six
A kind of hardware structural diagram of Fig. 9 mobile terminal of each embodiment to realize the present invention,
The mobile terminal 900 includes but is not limited to: radio frequency unit 901, network module 902, audio output unit 903, defeated
Enter unit 904, sensor 905, display unit 906, user input unit 907, interface unit 908, memory 909, processor
The components such as 910 and power supply 911.It will be understood by those skilled in the art that mobile terminal structure shown in Fig. 9 is not constituted
Restriction to mobile terminal, mobile terminal may include components more more or fewer than diagram, or combine certain components, or
The different component layout of person.In embodiments of the present invention, mobile terminal includes but is not limited to mobile phone, tablet computer, notebook electricity
Brain, palm PC, car-mounted terminal, wearable device and pedometer etc..
Wherein, pressure-detecting device includes the substrate being arranged successively, light-emitting layer, light absorbing layer and photosensitive layer, in which:
The light-emitting layer is set to the one side of the substrate, and can emit the light of first frequency；
The light absorbing layer includes the container to form enclosure space, and the absorbing liquid of the filling container, the absorption
Liquid at least absorbs the light of the part first frequency, and at least one side of the container is elastic surface；
The photosurface of the photosensitive layer is towards the light absorbing layer, and the photosensitive layer is for detecting across the light absorption
The light of the first frequency of layer.
In addition, the pressure-detecting device further includes light shield layer, the light shield layer is set to the photosurface of the photosensitive layer
Back side.
In addition, towards the side of the light absorbing layer being elastic surface in the container, sent out towards the light in the container
The side for penetrating layer is non-resilient face.
In addition, the light transmittance of the container is higher than predetermined light transmittance threshold value.
In addition, the absorbing liquid is to the uptake of the first frequency light and the light of the first frequency in the absorption
The distance passed through in liquid is positively correlated.
In addition, be provided with detector and photosensitive piece multiple on the photosensitive layer, the multiple photosensitive piece respectively with the inspection
It surveys device to be connected, the light intensity of the described photosensitive block light for detecting the first frequency, and the light intensity that will test is converted into electricity
Stream, the detector are used to determine that light intensity changes corresponding photosensitive piece of the position based on the variation of the electric current.
In addition, the light shield layer is for stopping the light of scheduled frequency range to pass through.
In addition, the light shield layer includes basement membrane and Anti-reflective coating, the refractive index of the Anti-reflective coating is greater than the refraction of the basement membrane
Rate, for the thickness of the Anti-reflective coating in predetermined thickness range, the basement membrane is set to the upper layer of the photosensitive layer, the basement membrane
Upper layer be provided with the Anti-reflective coating.
In addition, the Anti-reflective coating with a thickness ofOdd-multiple.
The embodiment of the present invention provides a kind of mobile terminal, which includes pressure-detecting device, pressure detecting dress
Set substrate, light-emitting layer, light absorbing layer and photosensitive layer including being arranged successively, in which: light-emitting layer is set to the one of the substrate
Side, and the light of first frequency can be emitted, light absorbing layer includes the container to form enclosure space, and the absorption of filling container
Liquid, absorbing liquid at least absorb the light of part first frequency, and at least one side of container is elastic surface, the photosurface court of photosensitive layer
To light absorbing layer, photosensitive layer is used to detect the light of the first frequency across light absorbing layer, in this way, being filled based on above-mentioned pressure detecting
The structure set can reduce interference of the environment light to pressure-detecting device, the knot of light-emitting layer and absorbing liquid by photosensitive layer
Structure can improve the sensitivity that light detects under pressure sensitive under the premise of guaranteeing detection accuracy, improve user experience.
It should be understood that the embodiment of the present invention in, radio frequency unit 901 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, to processor 910 handle；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 901 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 901 can also by wireless communication system and network and other
Equipment communication.
Mobile terminal provides wireless broadband internet by network module 902 for user and accesses, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
Audio output unit 903 can be received by radio frequency unit 901 or network module 902 or in memory 909
The audio data of storage is converted into audio signal and exports to be sound.Moreover, audio output unit 903 can also provide with
The relevant audio output of specific function that mobile terminal 900 executes is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 903 includes loudspeaker, buzzer and receiver etc..
Input unit 904 is for receiving audio or video signal.Input unit 904 may include graphics processor
(Graphics Processing Unit, GPU) 9041 and microphone 9042, graphics processor 9041 capture mould in video
The image data of the static images or video that are obtained in formula or image capture mode by image capture apparatus (such as camera) carries out
Processing.Treated, and picture frame may be displayed on display unit 906.Through graphics processor 9041, treated that picture frame can
To be stored in memory 909 (or other storage mediums) or be sent via radio frequency unit 901 or network module 902.
Microphone 9042 can receive sound, and can be audio data by such acoustic processing.Treated, and audio data can
To be converted to the format output that can be sent to mobile communication base station via radio frequency unit 901 in the case where telephone calling model.
Mobile terminal 900 further includes at least one sensor 905, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 9061, and proximity sensor can close when mobile terminal 900 is moved in one's ear
Close display panel 9061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect (one in all directions
As be three axis) acceleration size, can detect that size and the direction of gravity when static, can be used to identify mobile terminal posture
(such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion)
Deng；Sensor 905 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, gas
Meter, hygrometer, thermometer, infrared sensor etc. are pressed, details are not described herein.
Display unit 906 is for showing information input by user or being supplied to the information of user.Display unit 906 can
Including display panel 9061, liquid crystal display (Liquid Crystal Display, LCD), organic light-emitting diodes can be used
Forms such as (Organic Light-Emitting Diode, OLED) are managed to configure display panel 9061.
User input unit 907 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family setting and the related key signals input of function control.Specifically, user input unit 907 include touch panel 9071 with
And other input equipments 9072.Touch panel 9071, also referred to as touch screen collect the touch behaviour of user on it or nearby
Make (for example user uses any suitable objects or attachment such as finger, stylus on touch panel 9071 or in touch panel
Operation near 9071).Touch panel 9071 may include both touch detecting apparatus and touch controller.Wherein, it touches
Detection device detects the touch orientation of user, and detects touch operation bring signal, transmits a signal to touch controller；
Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 910,
It receives the order that processor 910 is sent and is executed.Furthermore, it is possible to using resistance-type, condenser type, infrared ray and surface
The multiple types such as sound wave realize touch panel 9071.In addition to touch panel 9071, user input unit 907 can also include it
His input equipment 9072.Specifically, other input equipments 9072 can include but is not limited to physical keyboard, function key (such as sound
Measure control button, switch key etc.), trace ball, mouse, operating stick, details are not described herein.
Further, touch panel 9071 can be covered on display panel 9061, when touch panel 9071 is detected at it
On or near touch operation after, send processor 910 to determine the type of touch event, be followed by subsequent processing device 910 according to touching
The type for touching event provides corresponding visual output on display panel 9061.Although in Fig. 9, touch panel 9071 and aobvious
Show that panel 9061 is the function that outputs and inputs of realizing mobile terminal as two independent components, but in certain implementations
In example, touch panel 9071 and display panel 9061 can be integrated and be realized the function that outputs and inputs of mobile terminal, specifically
Herein without limitation.
Interface unit 908 is the interface that external device (ED) is connect with mobile terminal 900.For example, external device (ED) may include having
Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card
Port, port, the port audio input/output (I/O), video i/o port, ear for connecting the device with identification module
Generator terminal mouth etc..Interface unit 908 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED)
And by one or more elements that the input received is transferred in mobile terminal 900 or it can be used in mobile terminal
Data are transmitted between 900 and external device (ED).
Memory 909 can be used for storing software program and various data.Memory 909 can mainly include storage program
Area and storage data area, wherein storing program area can application program needed for storage program area, at least one function (such as
Sound-playing function, image player function etc.) etc.；Storage data area, which can be stored, uses created data (ratio according to mobile phone
Such as audio data, phone directory) etc..In addition, memory 409 may include high-speed random access memory, it can also include non-
Volatile memory, for example, at least a disk memory, flush memory device or other volatile solid-state parts.
Processor 910 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 909, and calls and is stored in storage
Data in device 909 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Managing device 910 may include one or more processing units；Preferably, processor 910 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 910.
Mobile terminal 900 can also include the power supply 911 (such as battery) powered to all parts, it is preferred that power supply
911 can be logically contiguous by power-supply management system and processor 910, thus charged by power-supply management system realization management,
The functions such as electric discharge and power managed.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, including processor 910, and memory 909 is stored in
On memory 909 and the computer program that can run on the processor 910, the computer program are executed by processor 910
Each process of the above-mentioned pressure detection method embodiment of Shi Shixian, and identical technical effect can be reached, to avoid repeating, this
In repeat no more.
Embodiment seven
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored on computer readable storage medium
Computer program, the computer program realize each process of above-mentioned pressure detection method embodiment when being executed by processor, and
Identical technical effect can be reached, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium,
Such as read-only memory (Read-OnlyMemory, abbreviation ROM), random access memory (RandomAccess Memory, letter
Claim RAM), magnetic or disk etc..
The embodiment of the present invention provides a kind of computer readable storage medium, can by the structure of above-mentioned pressure-detecting device
To reduce the interference of environment light, the structure of light-emitting layer and absorbing liquid can improve pressure under the premise of guaranteeing detection accuracy
The sensitivity for incuding lower light detection, improves user experience.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer journey
Sequence product.Therefore, complete hardware embodiment, complete software embodiment or combining software and hardware aspects can be used in the present invention
The form of embodiment.Moreover, it wherein includes the calculating of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in machine usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions each in flowchart and/or the block diagram
The combination of process and/or box in process and/or box and flowchart and/or the block diagram.It can provide these computers
Processor of the program instruction to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices
To generate a machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute
For realizing the function of being specified in one or more flows of the flowchart and/or one or more blocks of the block diagram
Device.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that instruction stored in the computer readable memory generation includes
The manufacture of command device, the command device are realized in one box of one or more flows of the flowchart and/or block diagram
Or the function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that
Series of operation steps are executed on computer or other programmable devices to generate computer implemented processing, thus calculating
The instruction executed on machine or other programmable devices is provided for realizing in one or more flows of the flowchart and/or side
The step of function of being specified in block diagram one box or multiple boxes.
In a typical configuration, calculate equipment include one or more processors (CPU), input/output interface,
Network interface and memory.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable medium
Example.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any side
Method or technology realize that information stores.Information can be computer readable instructions, data structure, the module of program or other numbers
According to.The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory
(SRAM), dynamic random access memory (DRAM), other kinds of random access memory (RAM), read-only memory
(ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory techniques, CD-ROM are read-only
Memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or
Other magnetic storage devices or any other non-transmission medium, can be used for storage can be accessed by a computing device information.It presses
It is defined according to herein, computer-readable medium does not include temporary computer readable media (transitory media), is such as modulated
Data-signal and carrier wave.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method of element, commodity or equipment.
It will be understood by those skilled in the art that the embodiment of the present invention can provide as the production of method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or implementation combining software and hardware aspects can be used in the present invention
The form of example.Moreover, can be used can in the computer that one or more wherein includes computer usable program code by the present invention
With the computer program product implemented in storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Form.
The above description is only an embodiment of the present invention, is not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.All any modifications made within the spirit and principles of the present invention, etc.
With replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (12)
1. a kind of pressure-detecting device, which is characterized in that the pressure-detecting device includes the substrate being arranged successively, light emitting
Layer, light absorbing layer and photosensitive layer, in which:
The light-emitting layer is set to the one side of the substrate, and can emit the light of first frequency；
The light absorbing layer includes the container to form enclosure space, and the absorbing liquid of the filling container, and the absorbing liquid is extremely
The light of the part first frequency is absorbed less, and at least one side of the container is elastic surface；
Towards the light absorbing layer, the photosensitive layer is used to detect the institute across the light absorbing layer photosurface of the photosensitive layer
State the light of first frequency.
2. pressure-detecting device according to claim 1, which is characterized in that the pressure-detecting device further includes shading
Layer, the light shield layer are set to the back side of the photosurface of the photosensitive layer.
3. pressure-detecting device according to claim 1, which is characterized in that towards the light absorbing layer in the container
Side is elastic surface, in the container towards the side of the light-emitting layer be non-resilient face.
4. pressure-detecting device according to claim 3, which is characterized in that the light transmittance of the container is higher than predetermined light transmission
Rate threshold value.
5. pressure-detecting device according to claim 1, which is characterized in that the absorbing liquid is to the first frequency light
Uptake and the light of the first frequency are positively correlated at a distance from passing through in the absorbing liquid.
6. pressure-detecting device according to claim 2, which is characterized in that be provided with detector and more on the photosensitive layer
A photosensitive piece, the multiple photosensitive piece is connected with the detector respectively, and described photosensitive piece for detecting the first frequency
Light light intensity, and the light intensity that will test is converted into electric current, and the detector is used to determine light based on the variation of the electric current
Change corresponding photosensitive piece of the position by force.
7. pressure-detecting device according to claim 2, which is characterized in that the light shield layer is for stopping preset frequency model
The light enclosed passes through.
8. pressure-detecting device according to claim 7, which is characterized in that the light shield layer includes basement membrane and Anti-reflective coating,
The refractive index of the Anti-reflective coating is greater than the refractive index of the basement membrane, and the thickness of the Anti-reflective coating is described in predetermined thickness range
Basement membrane is set to the upper layer of the photosensitive layer, and the upper layer of the basement membrane is provided with the Anti-reflective coating.
9. pressure-detecting device according to claim 8, which is characterized in that the Anti-reflective coating with a thickness ofOdd number
Times.
10. pressure-detecting device according to claim 1, which is characterized in that the light of the first frequency is black light.
11. a kind of screen assembly, which is characterized in that the screen assembly includes such as pressure of any of claims 1-10
Force checking device.
12. a kind of mobile terminal, which is characterized in that the mobile terminal includes screen assembly as claimed in claim 11.
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| CN201811548051.2A CN109814749B (en) | 2018-12-18 | 2018-12-18 | Pressure detection device, screen assembly and mobile terminal |
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| CN110522424A (en) * | 2019-08-21 | 2019-12-03 | 清华大学 | A kind of novel pressure sensor and its physiological signal measurements method |
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