CN205091356U - Acceleration sensor and display device - Google Patents
Acceleration sensor and display device Download PDFInfo
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- CN205091356U CN205091356U CN201520748616.7U CN201520748616U CN205091356U CN 205091356 U CN205091356 U CN 205091356U CN 201520748616 U CN201520748616 U CN 201520748616U CN 205091356 U CN205091356 U CN 205091356U
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Abstract
The utility model provides an acceleration sensor and display device, this acceleration sensor of is including relative and insulating two electrodes that set up each other and set up and be in cavity between two electrodes, be provided with the liquid level in the cavity, the liquid level occupies the inner space of cavity partly. Integrated have acceleration sensor's display device has integrated level height, compact structure and low in production cost's advantage.
Description
Technical field
At least one embodiment of the present utility model provides a kind of acceleration transducer and display device.
Background technology
Sensor (transducer/sensor) is a kind of pick-up unit, measured information can be experienced, and the information that the information experienced can be for conversion into according to certain rules electric signal or other desired forms exports, to meet the requirements such as the transmission of information, process, storage, display, record and control.
Acceleration transducer be a kind of can the electronic equipment of acceleration measurement and displacement.Such as, acceleration transducer can detect the vibration of AC signal and object.Such as, people can produce the vibration of certain regularity when motion, and acceleration transducer can detect the zero crossing of vibration, thus calculates the step number of step number that people walks or running, thus calculates displacement or the acceleration of people's movement.
Along with the development of display technique and user are for the continuous increase of the application demand of display product, the mobile terminal such as mobile phone, panel computer and various sensor combine to be formed the study hotspot that the display product with various monitoring function becomes this area gradually.
Utility model content
At least one embodiment of the present utility model provides a kind of acceleration transducer, display device, to provide a kind of novel acceleration transducer and to improve the integrated level of this acceleration transducer and display device.
At least one embodiment of the present utility model provides a kind of acceleration transducer, it comprises toward each other and insulate two electrodes arranged and the cavity be arranged between described two electrodes, be provided with liquid level in described cavity, described liquid level occupies a part for the inner space of described cavity.
Such as, described cavity has inside surface, is provided with gap between described liquid level and described inside surface.
Such as, be filled with insulating gas in described gap, described insulating gas is different from the specific inductive capacity of the liquid in described liquid level.
Such as, the described liquid in described insulating gas and described liquid level is immiscible.
Such as, described acceleration transducer can also comprise solid insulating layer, and described solid insulating layer is arranged between one of described liquid level and described two electrodes.
The acceleration transducer that the utility model embodiment provides can make with the viewing area structure synchronization of display device, thus can make that the integrated level of display device is high, compact conformation and production cost is low.
Of the present utility model at least one embodiment still provides a kind of display device, it comprises the acceleration transducer described in above any one.
Such as, described display device has viewing area and sensing area, and comprises the array base palte with the first underlay substrate and be oppositely arranged with described array base palte and have the counter substrate of the second underlay substrate; In described sensing area, between described first underlay substrate and described second underlay substrate, be provided with described acceleration transducer; In described viewing area, the wetting structure of electricity is provided with between described first underlay substrate and described second underlay substrate, described electricity soaks structure and comprises two transparency electrodes be oppositely arranged, and the viewing area hydrophobic layer, viewing area first fluid layer and the viewing area second fluid layer that are arranged between described two transparency electrodes, along on the direction perpendicular to described first face, underlay substrate place, described viewing area first fluid layer is arranged between described viewing area hydrophobic layer and described viewing area second fluid layer.
Such as, one in described two electrodes of described acceleration transducer one of soaking in described two transparency electrodes of structure with described electricity is arranged with layer; Or described two electrodes of described acceleration transducer soak structure respectively described two transparency electrodes with described electricity are arranged with layer.
Such as, the described viewing area hydrophobic layer that described electricity soaks structure comprises the part extending to described sensing area; The described cavity of described acceleration transducer has sidewall, and described sidewall is connected with the described part extending to sensing area described in the hydrophobic layer of described viewing area.
Such as, to soak the described viewing area first fluid layer of structure identical with the material of the described liquid level of described acceleration transducer for described electricity.
Such as, the first film transistor and the second thin film transistor (TFT) is provided with between described first underlay substrate and described second underlay substrate; One of described electricity described two transparency electrodes soaking structure are electrically connected with described the first film transistor; One of described two electrodes of described acceleration transducer are electrically connected with described second thin film transistor (TFT).
Such as, in described viewing area, the multiple described electricity be provided with between described first underlay substrate and described second underlay substrate along the direction perpendicular to described first face, underlay substrate place is arranged in order soaks structure.
Such as, be also provided with the 3rd underlay substrate between described first underlay substrate and described second underlay substrate, described 3rd underlay substrate is arranged at two adjacent described electricity and soaks between structure.
Such as, in described sensing area, be provided with multiple described acceleration transducer between described first underlay substrate and described second underlay substrate, and two transparency electrodes that two of acceleration transducer described at least one electrodes soak one of structure with described multiple described electricity are respectively arranged with layer.
Such as, described display device comprises multiple described acceleration transducer.
Such as, described display device comprises at least three described acceleration transducers.
The display device that the utility model embodiment provides has that integrated level is high, compact conformation and the low advantage of production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described below by the accompanying drawing of embodiment, apparently, the accompanying drawing in the following describes only relates to embodiments more of the present utility model, but not to restriction of the present utility model.
The structural representation of the acceleration transducer that Fig. 1 a provides for the utility model embodiment one;
The structural representation of acceleration transducer under motion conditions that Fig. 1 b provides for the utility model embodiment one;
The structural representation of the another kind of acceleration transducer that Fig. 1 c provides for the utility model embodiment one;
The structural representation of the display device that Fig. 2 a provides for the utility model embodiment two;
The structural representation of acceleration transducer under motion conditions in the display device that Fig. 2 b provides for the utility model embodiment two;
The structural representation of the display device that Fig. 3 a provides for the utility model embodiment three;
The structural representation of acceleration transducer under motion conditions in the display device that Fig. 3 b provides for the utility model embodiment three;
The structured flowchart of the detection system that Fig. 4 a provides for the utility model embodiment four;
The process flow diagram of the detection method that Fig. 4 b provides for the utility model embodiment four.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing of the utility model embodiment, the technical scheme of the utility model embodiment is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiments.Based on described embodiment of the present utility model, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of the utility model protection.
Unless otherwise defined, the technical term that uses of the disclosure or scientific terminology should be in field belonging to the utility model the ordinary meaning that the personage with general technical ability understands." first ", " second " that use in the disclosure and similar word do not represent any order, quantity or importance, and are only used to distinguish different ingredients.Equally, the similar word such as " ", " " or " being somebody's turn to do " does not represent restricted number yet, but represents to there is at least one." to comprise " or the similar word such as " comprising " means to occur that element before this word or object contain the element or object that appear at this word presented hereinafter and equivalent, and do not get rid of other elements or object." connection " or " being connected " etc. similar word be not defined in physics or the connection of machinery, no matter but can comprise electrical connection, be direct or indirectly." on ", D score, "left", "right" etc. only for representing relative position relation, when be described object absolute position change after, then this relative position relation also may correspondingly change.
Under study for action, present inventor notices, in current mobile terminal, acceleration transducer is all adopt MEMS (MEMS (micro electro mechanical system), Micro-Electro-MechanicalSystem) technique makes separately, then be arranged on the mainboard of end product, but be there is integrated level low shortcoming like this.
At least one embodiment of the present utility model provides a kind of acceleration transducer, is integrated with the display device of this acceleration transducer.The acceleration transducer that the utility model embodiment provides can make with the viewing area structure synchronization of display device, therefore high, the compact conformation of the integrated level of this display device and production cost is low.
Embodiment one
Present embodiments provide a kind of acceleration transducer, as shown in Fig. 1 a to Fig. 1 c, this acceleration transducer 10 comprises toward each other and two electrodes arranged that insulate, i.e. the first electrode 11 and the second electrode 12 and the cavity 13 that is arranged between these two electrodes; Liquid level 14 is provided with in cavity 13, this liquid level 14 occupies a part for the inner space of cavity 13, namely, the volume of liquid level 14 in cavity 13 occupies a part for the volume of cavity 13, namely, at least part of inside surface (such as, inside surface 13b) of liquid level 14 and cavity 13 in a distance.
In the present embodiment, " certain distance " express liquid layer 14 does not contact with cavity 13 inside surface 13b, does not limit the size of this distance.
In the acceleration transducer that the present embodiment provides, the first electrode 11 and the second electrode 12 toward each other and insulation arrange, therefore can produce electric capacity therebetween; A part for the inner space of cavity 13 is occupied due to liquid level 14, in the process of acceleration transducer accelerated motion, liquid level 14 can move because of inertia effect in cavity 13, and the movement of liquid level 14 can cause the electric capacity between the first electrode 11 and the second electrode 12 to change, thus according to the variable quantity of the electric capacity between the first electrode 11 and the second electrode 12, the displacement of liquid level 14 can be calculated, thus calculate the acceleration of acceleration transducer.
Such as, successfully move in cavity 13 for the ease of liquid level 14, between the inside surface 13b of liquid level 14 and cavity 13, gap 15 can be provided with.Such as, gap 15 can occupy all the other inner spaces except the space that liquid level 14 occupies of cavity 13.Such as, can be filled with insulating gas 16 in gap 15, insulating gas 16 is different from the specific inductive capacity of the liquid in liquid level 14.Such as, insulating gas 16 can be immiscible with the liquid in liquid level 14.Such as, insulating gas 16 can be the common gas in this area such as nitrogen, inert gas.
Certainly, in cavity 13 except being provided with liquid level 14, other liquid can also be filled with in its remaining inner space, that is, second liquid layer can also be provided with in cavity 13.Liquid in liquid in second liquid layer and liquid level 14 is immiscible; Liquid in liquid in second liquid layer and liquid level 14 can be full of the whole inner space of cavity 13, also can not be full of the whole inner space of cavity 13.
The material that first electrode 11 and the second electrode 12 can adopt this area conventional, such as, the conducting metal oxides such as the metals such as aluminium, magnesium, molybdenum, titanium, copper or zirconium or ITO (tin indium oxide), etc.Do not limit herein.It should be noted that, the first electrode 11 and the second electrode 12 only represent two different electrodes, and its position can exchange.
Cavity 13 can have multiple implementation.Such as, the forming section of cavity 13 can comprise at least one in the first electrode 11 and the second electrode 12.Such as, as illustrated in figs. ia and ib, cavity 13 can by the formation that the first electrode 11, second electrode 12 and the sidewall 13c be positioned at therebetween is tightly connected, that is, first electrode 11 and the second electrode 12 are respectively as the base plate of cavity 13 and top board, in this case, the inside surface 13b of cavity 13 is the surface towards liquid level 14 of the second electrode 12.Or, such as, as illustrated in figure 1 c, cavity 13 can by the formation that the first electrode 11, solid insulating layer 17 and the sidewall 13c be arranged at therebetween is tightly connected, in this case, the inside surface 13b of cavity 13 is the surface towards liquid level 14 of the second electrode 12.Certainly, cavity 13 also can be formed separately, is fixed on afterwards between the first electrode 11 and the second electrode 12 to form acceleration transducer 10.
Liquid in liquid level 14 can be any liquid, and such as this liquid can be insulation, such as dielectric ink etc., or this liquid also can be conduction, such as salt solusion etc.
Such as, liquid in liquid level 14 is conducting liquid, in order to avoid this conducting liquid is by the first electrode 11 and the second electrode 12 conducting, the solid insulating layer 17 of the two being kept apart can be provided with, as illustrated in figure 1 c between at least one in liquid level 14 and the first electrode 11 and the second electrode 12.The utility model embodiment does not limit the material of this solid insulating layer 17, as long as it can avoid liquid level 14 by the first electrode 11 and the second electrode 12 conducting.Such as, this solid insulating layer 17 can be connected to the sidewall of the cavity crossing with the first electrode 11 or the second electrode 12, to avoid the first electrode 11 and the second electrode 12 conducting in liquid level 14 moving process.
Certainly, according to actual needs, the liquid in liquid level 14 is iknsulating liquid, between at least one in liquid level 14 and the first electrode 11 and the second electrode 12, also can solid insulating layer be set.
Below with the specific inductive capacity of insulating gas 16 for ε
1, liquid in liquid level 14 is iknsulating liquid and specific inductive capacity is ε
2for example, and composition graphs 1a and the principle of work of Fig. 1 b to the acceleration transducer that the present embodiment provides are described.
As shown in Figure 1a, when acceleration transducer 10 is static, liquid level 14 to be laid on the first electrode 11 and with the sidewall contact of cavity 13, the distance between liquid level 14 and the second electrode 12 is d
1; In this case, the electric capacity C between the first electrode 11 and the second electrode 12
0size equal insulating gas 16 produce electric capacity C
1the electric capacity C produced with liquid level 14
2value after series connection, electric capacity C
1=ε
1a/4 π kd
1, electric capacity C
2=ε
2a/4 π kd
2, wherein, A represents that the first electrode 11 and the second electrode 12 correspond to the area of liquid level 14 and insulating gas 16.
As shown in Figure 1 b, according to principle of inertia, when acceleration transducer moves, liquid level 14 is moved towards the direction contrary with direction of motion, thus produce certain distance S (this distance S is the displacement of acceleration transducer) between liquid in liquid level 14 ' and the sidewall of cavity 13, and the distance between liquid level 14 ' and the second electrode 12 is decreased to d
1'; In this case, the electric capacity C between the first electrode 11 and the second electrode 12
0' size be the electric capacity C that the Part I (as shown on the left of dotted line in Fig. 1 b) of insulating gas 16 produces
11the electric capacity C produced with liquid level 14
2the electric capacity C produced with the Part II (as shown on the right side of dotted line in Fig. 1 b) of insulating gas 16 again after ' series connection
12result after parallel connection, wherein, electric capacity C
11=ε
1a
1/ 4 π kd
1', electric capacity C
2'=ε
2a
1/ 4 π kd
2', electric capacity C
12=ε
1a
2/ 4 π k (d
1'
+d
2'), A
1be the area that the first electrode 11 and the second electrode 12 correspond to the Part I of liquid level 14 and insulating gas, A
2it is the area that the first electrode 11 and the second electrode 12 correspond to the Part II of insulating gas.
By the respectively sense acceleration sensor electric capacity C in static and accelerated motion situation
0, C
0' and calculate the variable quantity of capacitance and according to the variable quantity of this capacitance, the displacement S of acceleration transducer 10 can be calculated, and then calculate the acceleration of acceleration transducer, thus realize the sensing to displacement and acceleration.
Similarly, the liquid in liquid level 14 is conducting liquid, the electric capacity C in Fig. 1 a between the first electrode and the second electrode
0size equal insulating gas 16 produce electric capacity C
1=ε
1a/4 π kd
1; Electric capacity C in Fig. 1 b between the first electrode and the second electrode
0' size be insulating gas 16 Part I produce electric capacity C
11the electric capacity C produced with the Part II of insulating gas 16
12result after parallel connection, wherein, electric capacity C
11=ε
1a
1/ 4 π kd
1', electric capacity C
12=ε
1a
2/ 4 π k (d
1'
+d
2').
Embodiment two
Present embodiments provide a kind of display device, it comprises the acceleration transducer 10 that embodiment one provides.
Such as, as shown in Figure 2 a and 2 b, the display device that the present embodiment provides can have viewing area and sensing area, and comprise there is the first underlay substrate 100a array base palte 100, be oppositely arranged and there is the counter substrate 200 of the second underlay substrate 200a with array base palte 100; In sensing area, acceleration transducer 10 is provided with between first underlay substrate 100a and the second underlay substrate 200a, acceleration transducer 10 comprises toward each other and two electrodes arranged that insulate, i.e. the first electrode 11 and the second electrode 12 and the cavity 13 that is arranged between these two electrodes; Be provided with liquid level 14 in cavity 13, and this liquid level 14 occupies a part for the inner space of cavity 13, that is, cavity 13 has the inside surface (not shown) towards liquid level 14, and liquid level 14 and this inside surface are in a distance.
It should be noted that, the setting of acceleration transducer 10 can reference example one, repeats no more herein; Fig. 2 a and Fig. 2 b is only positioned at lower floor with the first electrode 11 of acceleration transducer, and the second electrode 12 is positioned at upper strata is that example is described, but the position of the first electrode 11 and the second electrode 12 can also exchange.
In the display device that the present embodiment provides, acceleration transducer 10 is arranged between array base palte 100 and counter substrate 200, can make with the structure synchronization of viewing area, the display device that thus the present embodiment provides has that integrated level is high, compact conformation and the low advantage of production cost.
Such as, in the display area, the wetting structure 130 of electricity can be provided with between first underlay substrate 100a and the second underlay substrate 200a, the wetting structure 130 of this electricity can comprise two transparency electrodes be oppositely arranged, i.e. the first transparency electrode 101 and the second transparency electrode 201 and the viewing area hydrophobic layer 133, viewing area first fluid layer 131 and the viewing area second fluid layer 132 that are arranged between the first transparency electrode 101 and the second transparency electrode 201; Along on the direction perpendicular to the first face, underlay substrate 100a place, viewing area first fluid layer 131 is arranged between viewing area hydrophobic layer 133 and viewing area second fluid layer 132.
First transparency electrode 101 and the second transparency electrode 201 may be used for applying a voltage to viewing area first fluid layer.Such as, the conducting metal oxide that the first transparency electrode 101 and the second transparency electrode 201 can adopt indium zinc oxide, tin indium oxide, indium oxide gallium zinc etc. transparent makes.It should be noted that, Fig. 2 a is only positioned at lower floor for the first transparency electrode 101 and the second transparency electrode 201 is positioned at upper strata is described, but the position of the first transparency electrode 101 and the second transparency electrode 201 can also exchange.
Viewing area hydrophobic layer 133 has hydrophobic property, changes the contact angle with viewing area first fluid layer for making viewing area first fluid layer under the effect of voltage.The hydrophobic material that viewing area hydrophobic layer 133 can adopt this area conventional, such as, viewing area hydrophobic layer 133 can be the liquid hydrophobic materials such as organosilicon, also can be the solid hydrophobic material such as tygon (PE), polymethylmethacrylate (PMMA).
Fluid in viewing area first fluid layer 131 can change at voltage effect upper/lower positions, thus the area of the light transmission part of each pixel region (region that each sub-electrode 101a in such as Fig. 2 a and Fig. 2 b is corresponding) is changed.Such as, the ink of other color that the fluid in viewing area first fluid layer can be commonly used for black ink or this area.
Fluid in viewing area second fluid layer 132 can carry out moistening to the surface of viewing area hydrophobic layer 133, forces the fluid in viewing area first fluid 131 to be subjected to displacement.Such as, the water that the fluid in viewing area second fluid layer can adopt this area conventional or salt solusion etc.
The displaying principle that above-mentioned electricity soaks structure 130 is: when the first transparency electrode 101 and the second transparency electrode 201 do not apply voltage, the surface of the viewing area hydrophobic layer 133 that the fluid well-distributing in viewing area first fluid layer 131 covers, the wetting structure 130 of electricity is in light tight state in this case; When the first transparency electrode 101 and the second transparency electrode 201 apply voltage respectively, electric field is produced between first transparency electrode 101 and the second transparency electrode 201, this electric field makes the contact angle of the drop in viewing area first fluid layer 131 and viewing area hydrophobic layer 133 change, thus cause the enlargement and contraction of drop, this makes the area of the light transmission part of pixel region change, to realize the control to display.
In the present embodiment, the Rotating fields soaking structure 130 and acceleration transducer 10 due to electricity is similar, therefore, be provided with the synchronous making that the wetting structure 130 of electricity is conducive to realizing acceleration transducer 10 and viewing area structure in viewing area, and improve acceleration transducer and comprise the integrated level of display panel of array base palte and counter substrate.
Such as, at least one in the first electrode 11 of acceleration transducer 10 and the second electrode 12 can be arranged with layer with at least one soaking in the first transparency electrode 101 of structure and the second transparency electrode 201 of electricity.That is, one in the first electrode 11 of acceleration transducer 10 and the second electrode 12 one of can soak in the first transparency electrode 101 of structure and the second transparency electrode 201 with electricity is arranged with layer; Or as shown in Figure 2 a and 2 b, the first electrode 11 of acceleration transducer 10 and the second electrode 12 can soak the first transparency electrode 101 of structure respectively with electricity and the second transparency electrode 201 is arranged with layer.Like this, electricity in making viewing area soaks in the patterning processes of the first/bis-transparency electrode of structure, the the first/bis-electrode of the acceleration transducer in sensing area can also be produced, to save technological process, to improve the integrated level of acceleration transducer and display panel.
Such as, when viewing area hydrophobic layer 133 adopts solid hydrophobic material, the viewing area hydrophobic layer 133 of the wetting structure 130 of electricity can comprise the part 133a extending to sensing area, and this part 133a can be connected with the sidewall 13c of cavity 13.The making of the cavity 13 of acceleration transducer 10 can be simplified like this, improve the integrated level of acceleration transducer 10 and display panel.On the other hand, the part 133a that viewing area hydrophobic layer 133 extends to sensing area as the solid insulating layer of acceleration transducer, but can be not limited thereto according to embodiment of the present utility model, and the above-mentioned solid insulating layer of acceleration transducer also can be arranged in addition.
Such as, the fluid that electricity soaks in the viewing area first fluid layer 131 of structure 130 can be identical with the material of the liquid in the liquid level 14 of acceleration transducer 10.The liquid level 14 of acceleration transducer 10 synchronously can be formed like this in sensing area, to save technological process, to improve the integrated level of acceleration transducer and display panel in the process forming viewing area first fluid layer 131.
Usually, one in first transparency electrode of the wetting structure of electricity and the second transparency electrode sub-electrode that can comprise multiple arrangement in matrix, the underlay substrate soaking structure place at electricity is provided with the thin film transistor (TFT) of multiple arrangement in matrix, multiple sub-electrodes that the plurality of thin film transistor (TFT) and electricity soak structure are connected respectively, and provide voltage to give each sub-electrode.
Such as, in Fig. 2 a and Fig. 2 b, between the first underlay substrate 100a and the second underlay substrate 200a, be provided with the first film transistor 121 and the second thin film transistor (TFT) 122; First transparency electrode 101 or second transparency electrode 201 of the wetting structure 130 of electricity can be electrically connected with the first film transistor 121; First electrode 11 of acceleration transducer 10 or the second electrode 12 can be electrically connected with the second thin film transistor (TFT) 122, and the second thin film transistor (TFT) 122 can by connected first electrode 11 or the second electrode 12 for acceleration transducer 10 provides voltage.Utilize the second thin film transistor (TFT) 122 to provide voltage for acceleration transducer 10, because the second thin film transistor (TFT) 122 synchronously can be formed with the first film transistor 121, thus can technique be saved, improve the integrated level of acceleration transducer and display panel.
The first transparency electrode 101 that Fig. 2 a and Fig. 2 b only soaks structure 130 with electricity comprises multiple sub-electrode 101a and to be electrically connected with the first film transistor 121 and the first electrode 11 of acceleration transducer 10 and the second thin film transistor (TFT) 122 electrically connect as example is described, and the utility model embodiment includes but not limited to this.
Fig. 2 a and Fig. 2 b is described for color membrane substrates for counter substrate 200, namely, as shown in Figure 2 a and 2 b, second underlay substrate 200a of counter substrate 200 is provided with chromatic filter layer, such as, this chromatic filter layer can comprise red filter pattern R, green filter pattern G and blue filter pattern B.Certainly, counter substrate 200 also can be transparency carrier, and in this case, the fluid in the first fluid layer of viewing area can be colored, to realize colored display.
Acceleration transducer 10 shown in Fig. 2 a and Fig. 2 b is similar with the principle of work of the acceleration transducer shown in Fig. 1 a and Fig. 1 b, but static different with the capacitance under motion conditions.Other structures according to the acceleration transducer in the display device of the present embodiment also can with reference to the structure of the acceleration transducer described in embodiment one.
Below with the specific inductive capacity of insulating gas 16 for ε
1, liquid in liquid level 14 is iknsulating liquid and specific inductive capacity is ε
2, viewing area hydrophobic layer 133 specific inductive capacity be ε
3for example is described the capacitance of acceleration transducer 10 under static and motion conditions respectively.
As shown in Figure 2 a, when acceleration transducer 10 is static, the electric capacity C that insulating gas 16 produces
1=ε
1a/4 π kd
1, liquid level 14 produce electric capacity C
2=ε
2a/4 π kd
2and the electric capacity C that viewing area hydrophobic layer 133 produces
3=ε
2a/4 π kd
3, A represents that the first electrode 11 and the second electrode 12 correspond to the area of liquid level 14, insulating gas 16 and viewing area hydrophobic layer 133, the electric capacity C between the first electrode 11 and the second electrode 12
0=C
1⊕ C
2⊕ C
3, wherein, ⊕ represents series connection.
As shown in Figure 2 b, according to principle of inertia, when acceleration transducer moves, the electric capacity C that the Part I of insulating gas 16 (as shown on the left of dotted line in Fig. 2 b) produces
11=ε
1a
1/ 4 π kd
1', the electric capacity C that produces of the Part II of insulating gas 16 (as shown on the right side of dotted line in Fig. 2 b)
12=ε
1a
2/ 4 π k (d
1'
+d
2'), liquid level 14 produce electric capacity C
2'=ε
2a
1/ 4 π kd
2', the electric capacity C that produces of the Part I of viewing area hydrophobic layer (as shown on the left of dotted line in Fig. 2 b)
31=ε
3a
1/ 4 π kd
3, viewing area hydrophobic layer the electric capacity C that produces of Part II (as shown on the right side of dotted line in Fig. 2 b)
32=ε
3a
2/ 4 π kd
3, A
1be the area that the first electrode 11 and the second electrode 12 correspond to liquid level 14, the Part I of insulating gas and the Part I of viewing area hydrophobic layer, A
2it is the area that the first electrode 11 and the second electrode 12 correspond to the Part II of insulating gas and the Part II of viewing area hydrophobic layer.Electric capacity C between first electrode 11 and the second electrode 12
0'=(C
11⊕ C
2' ⊕ C
31) // (C
12⊕ C
32), wherein, ⊕ represents series connection, // represent in parallel.
Such as, the display device that the present embodiment provides can be: any product or parts with Presentation Function such as liquid crystal panel, Electrowetting display panel, oled panel, Electronic Paper, mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.
In addition, Fig. 2 a and 2b comprises an acceleration transducer 10 for display device and is described, but embodiment of the present utility model is not restricted to this, in sensing area, between the first underlay substrate 100a and the second underlay substrate 200a, be also provided with multiple (two or be greater than three) acceleration transducer 10.By arranging multiple acceleration transducer, the acceleration of these acceleration transducers can be calculated and obtain accekeration more accurately by the account form such as to average.
The display device of what the present embodiment provided be integrated with acceleration transducer 10 can realize utilizing this acceleration transducer 10 to carry out health monitoring, the principle of health monitoring is: detect that the change calculations of AC signal goes out the variable quantity of acceleration transducer electric capacity when moving according to testing circuit, thus calculate the step number of step number that user walks or running, and then calculate the displacement S of user's movement; In addition, acceleration transducer can also can calculate caloric consumption according to the displacement of user's movement according to displacement and catabiotic formula.
Embodiment three
Present embodiments provide a kind of display device, as shown in Figure 3 a and Figure 3 b shows, the difference of the display device that this display device and embodiment two provide is: in the display area, is provided with multiple electricity be arranged in order and soaks structure 130 between the first underlay substrate 100a and the second underlay substrate 200a on the direction perpendicular to the first face, underlay substrate 100a place.
Such as, as shown in Figure 3 a and Figure 3 b shows, in sensing area, between the first underlay substrate 100a and the second underlay substrate 200a, multiple acceleration transducer 10 can be provided with, be preferably at least three acceleration transducers 10.By arranging multiple acceleration transducer, the acceleration of these acceleration transducers can be calculated and obtain accekeration more accurately by the account form such as to average.
Such as, as shown in Figure 3 a and Figure 3 b shows, the first electrode 11 of at least one acceleration transducer 10 and the second electrode 12 can soak the first transparency electrode 101 of structure 130 and the second transparency electrode 201 is arranged with layer respectively with an electricity.That is, the first electrode 11 and the first transparency electrode 101 can formed with in a patterning processes, and the second electrode 12 and the second transparency electrode 201 can formed with in a patterning processes.Be conducive to realizing acceleration transducer 10 and electricity like this to soak structure 130 and synchronously make, be conducive to the integrated level improving acceleration transducer and display panel.
Such as, as shown in Figure 3 a and Figure 3 b shows, the multiple acceleration transducers 10 be arranged in sensing area can be arranged in order along on the direction perpendicular to the first face, underlay substrate 100a place, and two transparency electrodes that two electrodes of multiple acceleration transducer 10 can be made with multiple electricity like this to soak structure 130 respectively synchronously make.Fig. 3 a and 3b shows and soaks structure 130 and the setting of acceleration transducer 10 one_to_one corresponding along the electricity that the direction perpendicular to the first underlay substrate 100a arranges, and that is, the wetting structure 130 of one deck electricity corresponds to the structure of one deck acceleration transducer 10.Therefore, every layer of electricity soaks two transparency electrodes of structure 130 (such as, two transparency electrodes 101 and 201 of the wetting structure of Tu Zhong lower floor electricity, or two transparency electrodes 201 and 301 of the wetting structure of middle layer electricity, or two transparency electrodes 401 and 501 of the wetting structure of upper strata electricity) can arrange with layer respectively with two electrodes that this electricity soaks acceleration transducer 10 corresponding to structure 130.
But be not limited thereto according to embodiment of the present utility model, acceleration transducer can not stacking setting, also can be arranged in order along the direction being parallel to the first underlay substrate 100a surface or other arrangement mode.In addition, three electricity that Fig. 3 a and 3b respectively illustrates along the direction perpendicular to the first underlay substrate is arranged in order soak structure and three acceleration transducers, but be not restricted to this according to embodiment of the present utility model, also can be two or be greater than the quantity of three.
In the present embodiment, the fluid in the viewing area first fluid layer in the wetting structure 130 of electricity can be black ink, also can for allowing the light transmission of different colours to realize the colored ink of colored display.Such as, as shown in Figure 3 a and Figure 3 b shows, 3 electricity viewing area first fluid layers soaked in structure 130 can allow yellow (Y) light, magenta (M) light and cyan (C) light transmission respectively.
Can mutually isostructural description in reference example two for arranging of the every Rotating fields (comprising the wetting structure of electricity and acceleration sensor structure) in the present embodiment, repeat part and repeat no more.
Embodiment four
Present embodiments provide a kind of detection system for display device and detection method, this display device comprises at least three acceleration transducers, and such as, this display device can for executing the display device that example three provides strictly according to the facts.
As shown in fig. 4 a, this detection system comprises: signal receiving module, computing module and judge module.Below these modules are described in detail.
Signal receiving module is configured to obtain respectively acceleration transducer at the capacitance (i.e. capacitances between two electrodes of acceleration transducer) in the first moment and the capacitance in the second moment.
Such as, the acceleration transducer 10 be positioned on the first underlay substrate 100a, the second underlay substrate 200a and the 3rd underlay substrate 300a is respectively C at the capacitance in the first moment (such as shown in Fig. 3 a)
01, C
02and C
03, in the second moment, the capacitance of (such as shown in Fig. 3 b) is respectively C
01', C
02' and C
03'.
Computing module is configured to the variable quantity calculating the capacitance of each acceleration transducer according to the capacitance in the first moment and the capacitance in the second moment respectively, calculate the sensing result of acceleration transducer according to the variable quantity of capacitance respectively, calculate the absolute value of the difference of the sensing result of each acceleration transducer and the sensing result of all the other each acceleration transducers.Such as, the sensing result of each acceleration transducer acceleration that can sense for acceleration transducer or displacement.
Take sensing result as acceleration be example, computing module can calculate the variation delta C of the capacitance of the acceleration transducer 10 in sensing area
1=C
01'-C
01, Δ C
2=C
02'-C
02, Δ C
3=C
03'-C
03; Calculate the acceleration a of acceleration transducer 10 afterwards
1, a
2and a
3; Then, calculate, such as, be arranged at the absolute value of the difference between acceleration transducer on the first underlay substrate 100a and the acceleration of other sensor | a
1-a
2| with | a
1-a
3|.
Judge module is configured to judge absolute value whether in setting threshold range.If the absolute value of the difference of the sensing result of the sensing result of certain acceleration transducer and all the other at least two acceleration transducers is setting outside threshold range, then the sensing result of acceleration transducer is being judged as not in normal range.
Such as, if above-mentioned | a
1-a
2| with | a
1-a
3| outside setting threshold range, then | a
1-a
2| with | a
1-a
3| public changing value, i.e. acceleration a
1, not in normal range.
Afterwards, such as, judged result can be sent to computing module by judge module, and computing module is according to the acceleration a of all the other acceleration transducers
2and a
3calculate aimed acceleration a=(a
2+ a
3)/2.
When sensing result is displacement, the account form of displacement of targets and the account form of acceleration similar, repeat no more herein.
Certainly, if the absolute value of the difference of the sensing result of each acceleration transducer and the sensing result of all the other acceleration transducers is setting within threshold range, then aimed acceleration a is being the mean value of the sensing result of all acceleration transducers.
Above-mentioned threshold range can be arranged according to actual needs.Such as, when utilizing said detecting system to survey the acceleration of people when walking, and peak acceleration when supposing that people walks is a
m, then above-mentioned setting threshold range can be 0 ~ a
mor 0 ~ a
min scope more among a small circle.
Such as, above-mentioned signal receiving module, computing module and judge module can be integrated in a chip.
The detection system that the present embodiment provides can integrate with display device, also can arrange separately separately with display device.
Correspondingly, as shown in Figure 4 b, the detection method that the present embodiment provides comprises the steps S1 to S3.
Step S1: obtain described acceleration transducer respectively at the capacitance in the first moment and the capacitance in the second moment.
Step S2: the variable quantity calculating the capacitance of each acceleration transducer according to the capacitance in described first moment and the capacitance in described second moment respectively, calculate the sensing result of described acceleration transducer according to the variable quantity of described capacitance respectively, calculate the absolute value of the difference of the sensing result of each acceleration transducer and the sensing result of all the other each acceleration transducers.
Step S3: judge described absolute value whether in setting threshold range.In this step, if the absolute value of the difference of the sensing result of the sensing result of certain acceleration transducer and all the other at least two acceleration transducers is setting outside threshold range, then the sensing result of described acceleration transducer is being judged as not in normal range.
Associated description in the detection system that the specific descriptions of above-mentioned steps S1 to step S3 can provide with reference to the present embodiment, repeats part and repeats no more.
The detection system that the present embodiment provides and detection method may be used for the display device with at least three acceleration transducers, after the sensing result of these acceleration transducers is screened, calculate average acceleration, testing result more accurately can be obtained.
The above is only exemplary embodiment of the present utility model, but not for limiting protection domain of the present utility model, protection domain of the present utility model is determined by appended claim.
Claims (16)
1. an acceleration transducer, it is characterized in that: described acceleration transducer comprises toward each other and two electrodes arranged that insulate, and the cavity be arranged between described two electrodes, be provided with liquid level in described cavity, described liquid level occupies a part for the inner space of described cavity.
2. acceleration transducer according to claim 1, is characterized in that: described cavity has inside surface, is provided with gap between described liquid level and described inside surface.
3. acceleration transducer according to claim 2, is characterized in that: be filled with insulating gas in described gap, and described insulating gas is different from the specific inductive capacity of the liquid in described liquid level.
4. acceleration transducer according to claim 3, is characterized in that: the described liquid in described insulating gas and described liquid level is immiscible.
5. the acceleration transducer according to any one of claim 1-4, is characterized in that: described acceleration transducer also comprises solid insulating layer, and described solid insulating layer is arranged between one of described liquid level and described two electrodes.
6. a display device, is characterized in that: described display device comprises the acceleration transducer according to any one of claim 1-5.
7. display device according to claim 6, is characterized in that:
Described display device has viewing area and sensing area, and comprises the array base palte with the first underlay substrate and be oppositely arranged with described array base palte and have the counter substrate of the second underlay substrate;
In described sensing area, between described first underlay substrate and described second underlay substrate, be provided with described acceleration transducer;
In described viewing area, be provided with the wetting structure of electricity between described first underlay substrate and described second underlay substrate, described electricity soaks structure and comprises:
Two transparency electrodes be oppositely arranged, and
Be arranged at the viewing area hydrophobic layer between described two transparency electrodes, viewing area first fluid layer and viewing area second fluid layer, along on the direction perpendicular to described first face, underlay substrate place, described viewing area first fluid layer is arranged between described viewing area hydrophobic layer and described viewing area second fluid layer.
8. display device according to claim 7, is characterized in that:
One in described two electrodes of described acceleration transducer one of soaking in described two transparency electrodes of structure with described electricity is arranged with layer; Or
Described two electrodes of described acceleration transducer soak structure respectively described two transparency electrodes with described electricity are arranged with layer.
9. the display device according to claim 7 or 8, is characterized in that: the described viewing area hydrophobic layer that described electricity soaks structure comprises the part extending to described sensing area; The described cavity of described acceleration transducer has sidewall, and described sidewall is connected with the described part extending to sensing area described in the hydrophobic layer of described viewing area.
10. the display device according to claim 7 or 8, is characterized in that: the described viewing area first fluid layer that described electricity soaks structure is identical with the material of the described liquid level of described acceleration transducer.
11. display device according to claim 7 or 8, is characterized in that:
The first film transistor and the second thin film transistor (TFT) is provided with between described first underlay substrate and described second underlay substrate;
One of described electricity described two transparency electrodes soaking structure are electrically connected with described the first film transistor;
One of described two electrodes of described acceleration transducer are electrically connected with described second thin film transistor (TFT).
12. display device according to claim 7, is characterized in that:
In described viewing area, the multiple described electricity be provided with between described first underlay substrate and described second underlay substrate along the direction perpendicular to described first face, underlay substrate place is arranged in order soaks structure.
13. display device according to claim 12, is characterized in that: be also provided with the 3rd underlay substrate between described first underlay substrate and described second underlay substrate, and described 3rd underlay substrate is arranged at two adjacent described electricity and soaks between structure.
14. display device according to claim 12 or 13, is characterized in that:
In described sensing area, be provided with multiple described acceleration transducer between described first underlay substrate and described second underlay substrate, and two transparency electrodes that two of acceleration transducer described at least one electrodes soak one of structure with described multiple described electricity are respectively arranged with layer.
15. according to claim 6-8, and the display device according to any one of 12 and 13, is characterized in that: described display device comprises multiple described acceleration transducer.
16. display device according to claim 15, is characterized in that: described display device comprises at least three described acceleration transducers.
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|---|---|---|---|
| CN201520748616.7U CN205091356U (en) | 2015-09-24 | 2015-09-24 | Acceleration sensor and display device |
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|---|---|---|---|
| CN201520748616.7U CN205091356U (en) | 2015-09-24 | 2015-09-24 | Acceleration sensor and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116169A (en) * | 2015-09-24 | 2015-12-02 | 京东方科技集团股份有限公司 | Acceleration sensor, display apparatus, detection system, and detection method |
-
2015
- 2015-09-24 CN CN201520748616.7U patent/CN205091356U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116169A (en) * | 2015-09-24 | 2015-12-02 | 京东方科技集团股份有限公司 | Acceleration sensor, display apparatus, detection system, and detection method |
| US9869693B2 (en) | 2015-09-24 | 2018-01-16 | Boe Technology Group Co., Ltd. | Acceleration sensor, display device, detecting system and detecting method |
| CN105116169B (en) * | 2015-09-24 | 2018-05-01 | 京东方科技集团股份有限公司 | Acceleration transducer, display device, detecting system and detection method |
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