CN107340866A - A kind of display panel, display device and acceleration detection method - Google Patents

A kind of display panel, display device and acceleration detection method Download PDF

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Publication number
CN107340866A
CN107340866A CN201710522397.4A CN201710522397A CN107340866A CN 107340866 A CN107340866 A CN 107340866A CN 201710522397 A CN201710522397 A CN 201710522397A CN 107340866 A CN107340866 A CN 107340866A
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China
Prior art keywords
display panel
acceleration
pressure sensor
inductive reactance
press section
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Granted
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CN201710522397.4A
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Chinese (zh)
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CN107340866B (en
Inventor
周星耀
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Wuhan Tianma Microelectronics Co Ltd
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Wuhan Tianma Microelectronics Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/12—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by alteration of electrical resistance
    • G01P15/122—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by alteration of electrical resistance by metal resistance strain gauges, e.g. wire resistance strain gauges
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The invention discloses a kind of display panel, display device and acceleration detection method, display panel includes viewing area and acceleration induction area and pressing structure, at least one pressure sensor and computing circuit；The direct of travel of acceleration induction area and moving object where display panel, which has, is more than 0 °, the first angle less than 180 °；Pressure sensor is located at acceleration induction area；Pressing structure corresponds to the setting of acceleration induction area；Pressing structure includes fixed support, press section and flexible member, and where fixed support is fixed on display panel in moving object, press section contacts with display panel acceleration induction area, and flexible member one end is connected support, and the other end connects press section；The acceleration of computing circuit moving object according to where the pressure detecting display panel in the depressed portion of pressure sensor.By technical scheme, on the basis of acceleration detection is realized, solve acceleration transducer in the prior art and make the problem of yield is low, and cost is high.

Description

A kind of display panel, display device and acceleration detection method
Technical field
The present embodiments relate to display technology field, more particularly to a kind of display panel, display device and acceleration inspection Survey method.
Background technology
Microelectromechanical systems (MEMS, Micro Electro Mechanical System) acceleration sensor chip It is a kind of inertial measurement component shaped by micro fabrication on silicon chip.MEMS acceleration sensor chips can divide For pressure resistance type, piezoelectric type, resonant mode, thermojunction type and several classes of condenser type.
The manufacturing process of MEMS acceleration transducers generally requires to be hollowed out in silicon substrate, is distinguished in the both sides for digging out hole Fixed electrode and float electrode are provided with, there is setting capacitance between fixed electrode and float electrode.When MEMS acceleration passes When sensor is used to detect the acceleration of certain moving object, the effect of the position of float electrode in power caused by moving object acceleration Under be moved so that the capacitance between the fixed electrode and float electrode of MEMS acceleration transducers changes, will be solid The variable quantity of capacitance is converted to the change of magnitude of voltage between fixed electrode and float electrode, by detecting the variable quantity of magnitude of voltage, The acceleration of moving object where obtaining MEMS acceleration transducers.
But the manufacturing process of MEMS acceleration transducers generally requires the progress deep hole technique in silicon substrate, that is, needs The larger hole of a depth is dug out in silicon substrate, deep hole technique greatly reduces the yield of MEMS acceleration transducers.Further, since silicon Base relative cost is higher, this acceleration transducer is fabricated separately using silicon substrate to also increase being fabricated to for acceleration transducer This.
The content of the invention
In view of this, the present invention provides a kind of display panel, display device and acceleration detection method, relative to existing skill Art, on the basis of moving object acceleration detection is realized, solve in the prior art acceleration transducer make yield it is low, with And make acceleration transducer, the problem of acceleration transducer cost of manufacture is high using silicon substrate in addition.
In a first aspect, the embodiments of the invention provide a kind of display panel, including：
Viewing area and acceleration induction area；The acceleration induction area and the row of the moving object where the display panel Entering direction has the first angle, and first angle is more than 0 °, less than 180 °；
Pressing structure and at least one pressure sensor, the pressure sensor are located at the acceleration induction area；Institute State pressing structure and correspond to the acceleration induction area setting；
The pressing structure includes fixed support, press section and flexible member, and the fixed support is fixed on the display In moving object where panel, the press section contacts with the acceleration induction area of the display panel, the elasticity Element one end connects the fixed support, and the other end connects the press section；
Computing circuit, the computing circuit are used for the pressure according to the pressure sensor by the press section, detection The acceleration of moving object where the display panel.
Second aspect, the embodiment of the present invention additionally provide a kind of display device, including the display panel described in first aspect.
The third aspect, the embodiment of the present invention additionally provide a kind of acceleration detection based on display panel described in first aspect Method, including：
Obtain the pressure that pressure sensor is subject to；
Where the pressure and the quality of the press section being subject to according to the pressure sensor obtain the display panel The acceleration of moving object.
The embodiments of the invention provide a kind of display panel, display device and acceleration detection method, is shown by setting The pressure sensor of panel is located at the acceleration induction area of display panel, and pressing structure corresponds to the setting of acceleration induction area, and sets Put pressing structure to contact with acceleration induction area, while acceleration induction area and the direct of travel of object where display panel are set With more than 0 °, the first angle less than 180 °, realize when the object of which movement where display panel is produced by acceleration induction Area towards press section direction acceleration when, press section can press the acceleration induction area of display panel, set acceleration sense Answer the pressure sensor in area to detect the size of press section pressing acceleration induction area pressure, computing circuit is set according to pressure sensing The pressure in the depressed portion of device, realize the detection to the moving object acceleration where display panel.In addition, the application relative to Prior art avoids the deep hole technique in acceleration transducer manufacturing process, solves acceleration transducer system in the prior art Make the problem of yield is low, and cost of manufacture is high.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other Feature, objects and advantages will become more apparent upon：
Fig. 1 is a kind of side structure schematic view of display panel provided in an embodiment of the present invention；
Fig. 2 is a kind of cross-sectional view of display panel provided in an embodiment of the present invention；
Fig. 3 is the side structure schematic view of another display panel provided in an embodiment of the present invention；
Fig. 4 is the geometrical relationship schematic diagram of pressure sensor detection pressure when the first angle is acute angle；
Fig. 5 is the side structure schematic view of another display panel provided in an embodiment of the present invention；
Fig. 6 is a kind of structural representation of pressure sensor provided in an embodiment of the present invention；
Fig. 7 is the structural representation of another pressure sensor provided in an embodiment of the present invention；
Fig. 8 is the structural representation of another pressure sensor provided in an embodiment of the present invention；
Fig. 9 is the structural representation of another pressure sensor provided in an embodiment of the present invention；
Figure 10 is the structural representation of another pressure sensor provided in an embodiment of the present invention；
Figure 11 is a kind of structural representation of display device provided in an embodiment of the present invention；
Figure 12 is a kind of schematic flow sheet of acceleration detection method provided in an embodiment of the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.It is same or similar in this specification Drawing reference numeral represent same or analogous structure, element or flow.It should be noted that in the case where not conflicting, this Shen Please in embodiment and embodiment in feature can be mutually combined.
The embodiments of the invention provide a kind of display panel, including viewing area and acceleration induction area, acceleration induction area There is the first angle with the direct of travel of the moving object where display panel, the first angle is more than 0 °, less than 180 °.Display surface Plate includes pressing structure, at least one pressure sensor and computing circuit, and pressure sensor is located at acceleration induction area；Pressing Structure corresponds to the setting of acceleration induction area；Pressing structure includes fixed support, press section and flexible member, and fixed support is fixed on In moving object where display panel, press section contacts with the acceleration induction area of display panel, the connection of flexible member one end Fixed support, other end connection press section；Computing circuit is used for the pressure according to the depressed portion of pressure sensor, detection display The acceleration of moving object where panel.
Prior art generally requires in the manufacturing process of MEMS acceleration transducers and deep hole is dug in silicon substrate, the two of deep hole Side is respectively arranged with fixed electrode and float electrode, when acceleration of the MEMS acceleration transducers for detecting certain moving object When, by the change of capacitance between fixed electrode and float electrode or magnitude of voltage, obtain transporting where MEMS acceleration transducers The acceleration of animal body.But deep hole technique can greatly reduce the yield of MEMS acceleration transducers.Further, since silicon substrate Relative cost is higher, this that the cost of manufacture that acceleration transducer also increases acceleration transducer is fabricated separately using silicon substrate.
The embodiment of the present invention is pressed by setting the pressure sensor of display panel to be located at the acceleration induction area of display panel Laminated structure corresponds to the setting of acceleration induction area, and sets pressing structure to be contacted with acceleration induction area, while sets acceleration sense Answer the direct of travel of area and object where display panel to have and be more than 0 °, the first angle less than 180 °, realize and work as display surface Object of which movement where plate produce by acceleration induction area towards press section direction acceleration when, press section can press display The acceleration induction area of panel, the pressure sensor detection press section pressing acceleration induction area pressure in acceleration induction area is set Size, set computing circuit according to the pressure in the depressed portion of pressure sensor, realize to the moving object where display panel The detection of body acceleration.In addition, the application avoids the deep hole work in acceleration transducer manufacturing process relative to prior art Skill, solve acceleration transducer in the prior art and make the problem of yield is low, and cost of manufacture is high.
Above is the core concept of the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, to the embodiment of the present invention In technical scheme be clearly and completely described.Based on the embodiment in the present invention, those of ordinary skill in the art are not having Under the premise of making creative work, the every other embodiment that is obtained belongs to the scope of protection of the invention.
Fig. 1 is a kind of side structure schematic view of display panel provided in an embodiment of the present invention, and Fig. 2 is the embodiment of the present invention A kind of cross-sectional view of the display panel provided.With reference to Fig. 1 and Fig. 2, display panel includes viewing area A1 and acceleration Induction zone A2, acceleration induction area A2 and the direct of travel (BB ' directions in Fig. 1) of display panel place moving object have first Angle theta, the first angle theta are more than 0 °, and less than 180 °, Fig. 1 exemplarily sets acceleration induction area A2 perpendicular to display panel institute In the direct of travel of object, i.e. the first angle theta is 90 °.Display panel includes pressing structure 10, at least one pressure sensor 20 And computing circuit (not shown), pressure sensor 20 are located at acceleration induction area A2,10 corresponding acceleration induction of pressing structure Area A2 is set.Pressing structure 10 includes fixed support 101, press section 102 and flexible member 103, and fixed support 101 is fixed on aobvious Show in the moving object where panel, press section 102 contacts with the acceleration induction area A2 of display panel, flexible member 103 1 Hold the support 101 that is connected, other end connection press section 102.Computing circuit can be according to the acceleration where pressure sensor 20 Spend the pressure in the depressed portions 102 of induction zone A2, the acceleration of the moving object where detection display panel.Exemplary, fortune The computing chip in the driving chip that driving display panel is shown or being independently arranged can be integrated in by calculating circuit.
Specifically, into Fig. 1, BB ' is moved in direction when the moving object where display panel, and the fortune where display panel The acceleration a11 of animal body also along BB ' directions when, by the moving object where display panel be automobile exemplified by, i.e., at automobile When Acceleration of starting state, due to effect of inertia, with the press section 102 that the acceleration induction area A2 of display panel is contacted along B ' B Direction presses acceleration induction area A2, the pressure F of display panel, and now press section 102 has the acceleration along B ' B directions A22, the moving object where display panel have the acceleration a11 along BB ' directions.Because acceleration induction area A2 is provided with pressure Force snesor 20, pressure sensor 20 is by detecting that press section 102 is pressed caused by the acceleration induction area A2 of display panel Deformation, and then determine that press section 102 presses acceleration induction area A2 pressure F, computing circuit detects according to pressure sensor 20 Press section 102 press acceleration induction area A2 pressure F, and the quality of press section 102, press section 102 can be obtained Acceleration a22.When between the direct of travel of the moving object where the acceleration induction area A2 and display panel of display panel When first angle theta is 90 °, the acceleration a11 of moving object and the acceleration a22 of press section etc. where display panel are big reversely, And then the acceleration a11 of display panel place moving object is obtained according to the acceleration a22 of press section 102.
Exemplary, the quality of press section 102 is set as m, sets acceleration induction area A2 pressure sensor 20 to detect The pressure F sizes that display panel acceleration induction area A2 is pressed to press section 102 are F0, moving object where display panel plus Speed a11 size a meets formula below：
So realized using the pressure sensor 20 being integrated in display panel to the moving object where display panel The detection of acceleration, while the traditional MEMS acceleration transducer used relative to prior art, avoid acceleration transducer Deep hole technique in manufacturing process, solving acceleration transducer in the prior art, to make yield low, and uses silicon substrate in addition Make acceleration transducer, the problem of acceleration transducer cost of manufacture is high.
Fig. 3 is the side structure schematic view of another display panel provided in an embodiment of the present invention.With reference to Fig. 2 and Fig. 3, show Have between the direct of travel (CC ' directions in Fig. 3) of moving object where example property acceleration induction area A2 and display panel are set There is the first angle theta shown in Fig. 3, the moving object acceleration where detecting display panel from display panel shown in Fig. 1 is different , be arranged on that acceleration induction area A2 pressure sensor 20 detects is the vertical pressing acceleration induction of press section 102 Area A2 pressure F1, its relation with the acceleration a33 of the moving object where display panel is as shown in figure 4, then according to Fig. 4 Geometrical relationship, with reference to Fig. 3, the quality for setting press section 102 be m, and setting acceleration induction area A2 pressure sensor 20 is examined The pressure F1 sizes for measuring the vertical pressing display panel acceleration induction area A2 of press section 102 are F10, acceleration induction area is set A2 pressure sensor 20 detects pressure F2 of the press section 102 parallel to the direct of travel of the moving object where display panel Size is F20, between acceleration induction area A2 and the direct of travel (i.e. CC ' directions in Fig. 3) of the moving object where display panel The first angle be θ, then the acceleration a33 of moving object where display panel size a0Meet formula below：
It should be noted that row of the embodiment of the present invention to the moving object where acceleration induction area A2 and display panel The size for the first angle theta entered between direction is not construed as limiting, and meets that the first angle theta is more than 0 °, less than 180 °, by the first folder θ settings in angle are in 90 °, and the acceleration of moving object is easier where obtaining display panel.
Optionally, press section 102 can be fixedly connected with the acceleration induction area A2 of display panel.With display shown in Fig. 1 Exemplified by panel construction, when press section 102 is not fixedly connected with the acceleration induction area A2 of display panel, press section 102 can only Along the acceleration induction area A2 of B ' B directions () pressing display panel, that is, it is integrated in display panel acceleration sense in Fig. 1 from right to left Pressure F along B ' B directions can only be detected by answering area A2 pressure sensor 20, and then detect the moving object edge where display panel The acceleration a11 in BB ' directions.When the moving object where display panel, into Fig. 1, BB ' is moved in direction, where display panel When the acceleration a12 of moving object is along B ' B directions, so that the moving object where display panel is automobile as an example, i.e., at automobile In touch on the brake etc. state when, due to effect of inertia, and set the acceleration induction area A2 of press section 102 and display panel to fix and connect Connect, then press section 102 can stretch the acceleration induction area A2 of display panel along BB ' directions, that is, cause the acceleration of display panel Degree induction zone A2 produces deformation to BB ' directions, and the pressure sensor 20 for being integrated in display panel acceleration induction area A2 can be with Pulling force F ' of the detection along BB ' directions, now press section 102 is with the acceleration a23 along BB ' directions, the fortune where display panel Animal body has the acceleration a12 along B ' B directions.Pressure sensor 20 is by detecting that press section 102 stretches display panel Deformation caused by acceleration induction area A2, and then determine that press section 102 stretches acceleration induction area A2 pulling force F ', computing circuit The press section 102 detected according to pressure sensor 20 stretches acceleration induction area A2 pulling force F ', and the matter of press section 102 Amount, the acceleration a23 of press section 102 can be obtained.Acceleration induction area A2 when display panel and the fortune where display panel When the first angle theta between the direct of travel of animal body is 90 °, the acceleration a12 of moving object where display panel and pressing The acceleration a23 in portion 102 etc. is big reversely, and then the moving object according to where the acceleration a23 of press section 102 obtains display panel Acceleration a12.So set press section 102 to be fixedly connected with the acceleration induction area A2 of display panel, vapour can either be detected Acceleration a11 of the car along BB ' directions, it can also detect acceleration a12 of the automobile along B ' B directions.
Optionally, press section 102 can be fixedly connected by viscose with the acceleration induction area A2 of display panel.It is exemplary , realize that the viscose that press section 102 is fixedly connected with the acceleration induction area A2 of display panel preferably uses rigid glue, such as ring Shape resin.If using the less viscose of hardness, the acceleration induction area A2 of display panel is pressed or stretched in press section 102 When, the pressure that the less viscose of hardness acts on the acceleration induction area A2 of display panel to press section 102 is respectively provided with pulling force One cushioning effect, so that be integrated in pressure that the acceleration induction area A2 of display panel pressure sensor 20 detects with There is larger error in press section 102 caused by acceleration, i.e., final inspection between pressing acceleration induction area A2 actual pressure Larger error be present between the acceleration of moving object where the display panel of survey and actual acceleration to be detected.Use The larger rigid glue of hardness can greatly reduce the error of the moving object acceleration detection where display panel.Need what is illustrated It is that other modes can also be used press section 102 is fixedly connected with the acceleration induction area A2 of display panel, the present invention is real Example is applied to be not construed as limiting this.
Optionally, the telescopic direction of flexible member 103 can be parallel with the direct of travel of moving object where display panel. Exemplary, reference picture 1, when the direction of motion of the moving object where display panel is parallel to BB ' directions, flexible member 103 can extend along B ' B directions, can also be compressed along BB ' directions, and then realize to moving object where display panel along BB ' Direction and the detection of B ' B directional accelerations.
Optionally, as shown in Fig. 2 display panel can also include multiple thin film transistor (TFT)s 30, along the side away from substrate 40 To, each thin film transistor (TFT) 30 can include active layer 301, grid 302 and the source electrode 303 made with layer and drain electrode 304, and The material for being integrated in the acceleration induction area A2 of display panel pressure sensor 20 can be the half of non-crystalline silicon or polysilicon etc. Conductor material, can also any metal material, then the active layer 301 of pressure sensor 20 and thin film transistor (TFT) 30 can be set same Layer is made, and pressure sensor 20 can also be set to be made with any metal level in thin film transistor (TFT) 30 with layer, as shown in Fig. 2 The grid 302 of pressure sensor 20 and thin film transistor (TFT) 30 is exemplarily set to be made with layer, can also be with source electrode 303 or drain electrode 304.The active layer 301 in thin film transistor (TFT) 30 or any metal level is so utilized to make pressure sensor 20, realizing to press Force snesor 20 is integrated in display panel, and pressure sensor 20 can be used to detecting moving object where display panel plus Speed, relative to acceleration transducer is made using single silicon substrate in the prior art, the digging deep hole shadow in silicon substrate was both avoided The yield that acceleration transducer makes is rung, enormously simplify the manufacture craft of the display panel with acceleration detection function again.
Optionally, as shown in Fig. 1 or Fig. 3, display panel can be flexible display panels.Exemplary, display panel institute Moving object for example can be automobile, with increase of the user to inner space of vehicle amount demand, by setting display surface Plate is flexible display panels, that is, sets display panel bent, greatlys save the space that display panel is set in automobile, improves The space availability ratio of automotive interior.
Exemplary, as shown in figure 5, the viewing area A1 of display panel and acceleration induction area A2 can be generally aligned in the same plane Interior, the acceleration induction area A1 that pressing structure 10 equally corresponds to display panel is set, and is realized to moving object where display panel The detection of acceleration.Can also be as shown in figure 1, making have second between the viewing area A1 of display panel and acceleration induction area A2 Angle α, the second angle α can be more than 0 °, less than 180 °, the viewing area of display panel can be realized using flexible display panels Have between A1 and acceleration induction area A2 and be more than 0 °, the second angle less than 180 °, when the moving object where display panel When having the object of demand to amount of space for automobile etc., setting between the viewing area A1 of display panel and acceleration induction area A2 has More than 0 °, the second angle α less than 180 ° can realize the basis to the moving object acceleration detection where display panel On, improve utilization rate in the spaces of object such as automobile.
Optionally, Fig. 6 is a kind of structural representation of pressure sensor provided in an embodiment of the present invention.With reference to Fig. 1, Fig. 2 And Fig. 6, each pressure sensor 20 can include the first inductive reactance R1, the second inductive reactance R2, the 3rd inductive reactance R3 and 4th inductive reactance R4.First inductive reactance R1 first end a1 and the 4th inductive reactance R4 first end a4 and the first power supply Input Vcc1Electrical connection, the first inductive reactance R1 the second end b1 and the second inductive reactance R2 first end a2 and the first sense Induction signal measurement end V+Electrical connection, the 4th inductive reactance R4 the second end b4 and the 3rd inductive reactance R3 first end a3 and the Two induced signal measurement end V-Electrical connection, the second inductive reactance R2 the second end b2 and the 3rd inductive reactance R3 the second end b3 With second source input Vcc2Electrical connection.Exemplary, the first power input Vcc1The voltage of input for example can be positive electricity Pressure, second source input Vcc2The voltage of input for example can be negative voltage or no-voltage, such as can be by second Power input Vcc2Ground connection.
Specifically, pressure sensor 20 shown in Fig. 6 is a kind of wheatstone bridge configuration, the first inductive reactance R1, the second sense Resistance R2, the 3rd inductive reactance R3 and the 4th inductive reactance R4 is answered to be linked to be quadrangle ABCD, referred to as the four of electric bridge arm.Quadrangle ABCD diagonal BD is connected with galvanometer G, and galvanometer G the two poles of the earth are the first induced signal measurement end V+With the second induced signal Measurement end V-, quadrangle ABCD diagonal AC connects the first power input V respectivelycc1With second source input Vcc2.When First power input Vcc1With second source input Vcc2On voltage when certain difference be present, each branch road is equal in electric-bridge circuit There is electric current to pass through.First inductive reactance R1, the second inductive reactance R2, the 3rd inductive reactance R3 and the 4th inductive reactance R4 resistance MeetWhen, the current potential between 2 points of BD is equal, and the electric current for flowing through galvanometer G is zero, and galvanometer G pointers indicated for zero quarter Degree, electric bridge is in poised state, and claimsFor bridge balance condition.When the first inductive reactance R1, the second inductive reactance When R2, the 3rd inductive reactance R3 and the 4th inductive reactance R4 resistance are unsatisfactory for above-mentioned bridge balance condition, between 2 points of BD Current potential is unequal, and the electric current for then flowing through galvanometer G is not 0, and galvanometer G pointer deflects, and exports corresponding signal value.
The acceleration of display panel is pressed in the presence of acceleration of the press section 102 in the moving object where display panel Spend induction zone A2 when, the acceleration induction area A2 of display panel is deformed upon, the first inductive reactance R1, the second inductive reactance R2, 3rd inductive reactance R3 and the 4th inductive reactance R4 can be deformed upon, and cause its resistance to change, and this will cause electric bridge Disequilibrium, galvanometer G export corresponding signal value, and the signal value exported according to galvanometer G is realized to the institute of pressure sensor 20 The detection being stressed, computing circuit and then the pressure and the quality of press section 102 that are detected according to pressure sensor 20 obtain aobvious Show the acceleration of the moving object where panel.
Optionally, Fig. 7 is the structural representation of another pressure sensor provided in an embodiment of the present invention.Shown in Fig. 6 On the basis of pressure sensor wheatstone bridge configuration, display panel can include the first bearing of trend 100 and the second extension side It is arranged in a crossed manner to 200, first bearing of trends 100 and the second bearing of trend 200.First inductive reactance R1 is by first end a1 to second The component on the second bearing of trend 200 can be more than by holding b1 component of the development length on the first bearing of trend 100, and second Inductive reactance R2 can be more than the by component of first end a2 to the second end b2 development length on the second bearing of trend 200 Component on one bearing of trend 100, the 3rd inductive reactance R3 is by first end a3 to the second end b3 development length in the first extension Component on direction 100 can be more than the component on the second bearing of trend 200, and the 4th inductive reactance R4 is by first end a4 to the Component of the two end b4 development length on the second bearing of trend 200 can be more than the component on the first bearing of trend 100.
Specifically, due to pressure sensor 20 shown in Fig. 6 usually require that the first inductive reactance R1, the second inductive reactance R2, The deformation that 3rd inductive reactance R3 and the 4th inductive reactance R4 are experienced is different, such as the first inductive reactance R1 and the 3rd induced electricity Resistance R3 experiences compressive deformation, and the second inductive reactance R2 and the 4th inductive reactance experience R4 tensile deformations, therefore, the first inductive reactance R1 and the second inductive reactance R2, and the 3rd inductive reactance R3 and the 4th inductive reactance R4 are spatially separated, and work as part During temperature change so that at the first inductive reactance R1, the second inductive reactance R2, the 3rd inductive reactance R3 and the 4th inductive reactance R4 In different temperature environments, temperature is to the first inductive reactance R1, the second inductive reactance R2, the sensings of the 3rd inductive reactance R3 and the 4th Resistance R4 resistance produces different influences, influences pressure sensor 20 and carries out the accuracy of pressure detecting, and then reduces The accuracy of moving object acceleration where detection display panel.
With reference to Fig. 1, Fig. 2 and Fig. 7, using the structure of pressure sensor 20 shown in Fig. 7, pass through the first power input Vcc1 With second source input Vcc2To the first inductive reactance R1, the second inductive reactance R2, the 3rd inductive reactance R3 and the 4th induced electricity After R4 resistances apply electric signal, when no pressure acts on, pressure sensitive electric bridge meets bridge balance condition, and it is in poised state, the One induced signal measurement end V+With the first induced signal measurement end V-Between the signal value of output be zero；When press section 102 is aobvious Show when pressing the acceleration induction area A2 of display panel in the presence of the acceleration of the moving object where panel, display panel Acceleration induction area A2 is deformed upon, and the first inductive reactance Rl and the 3rd inductive reactance R3 sense the first bearing of trend 100 Strain, its corresponding resistance value accordingly change, and the second inductive reactance R2 and the 4th inductive reactance R4 sense the second extension side To 200 strain, its corresponding resistance value accordingly changes, and the strain of the first bearing of trend 100 and the second bearing of trend 200 Difference, Rl is different with R4 change in resistance from R2 and R3, and now pressure sensitive electric bridge is unsatisfactory for bridge balance condition, and it loses Balance, the first induced signal measurement end V+With the first induced signal measurement end V-Between the signal value of output be not zero, Ke Yigen Be worth to the pressure of pressure sensor 20 according to the signal, computing circuit and then the pressure that is detected according to pressure sensor 20 and The acceleration of moving object where the quality of press section 102 obtains display panel.
Relative to the structure of pressure sensor 20 shown in Fig. 6, pressure sensor 20 shown in Fig. 7 is by setting the first induced electricity Hinder the strain that R1 and the 3rd inductive reactance R3 senses the first bearing of trend 100, the second inductive reactance R2 and the 4th inductive reactance R4 Sense the strain of the second bearing of trend 200 so that the first inductive reactance R1, the second inductive reactance R2, and the 3rd inductive reactance R3 and the 4th inductive reactance R4 can be distributed in space same place, or be distributed in smaller region.And then cause first Inductive reactance R1, the second inductive reactance R2, the 3rd inductive reactance R3 and the 4th inductive reactance R4 have pulling temperature change, eliminate The influence of temperature difference, pressure sensitive precision is improved, and then improve the inspection to moving object acceleration where display panel Survey precision.
Optionally, pressure sensor can be bulk, be made up of semi-conducting material, and it is shaped as comprising at least four sides Polygon.Pressure sensor includes the first connection end, second connection end, the 3rd connection end and the 4th connection end, the first connection end Electrically connected with the first power input, second connection end electrically connects with second source input, the 3rd connection end and the first sensing Signal measurement end electrically connects, and the 4th connection end electrically connects with the second induced signal measurement end.First connection end, second connection end, 3rd connection end and the 4th connection end are set on four sides with polygon respectively, and the side where the first connection end is connected with second End where side be not attached to, where the 3rd connection end while and the 4th connection end where while be not attached to.It is exemplary, Fig. 8 with Pressure sensor is illustrated for quadrangle, but the embodiment of the present invention is not limited the shape of pressure sensor.
Exemplary, with reference to Fig. 1, Fig. 2 and Fig. 8, pressure sensor 20 can be in quadrangle, can set the first connection end 201st, second connects extreme 202, the 3rd connection end 203 and the 4th connection end 204 is respectively the first side 221 of pressure sensor, the Two at the 222, the 3rd 223 and the 4th side 224, and the first of pressure sensor 20 222 is oppositely arranged at 221 and second, and the 3rd At 223 and the 4th, 224 are oppositely arranged, the first company extreme 201 and the first power input Vcc1Electrical connection, second connects extreme 202 With second source input Vcc2Electrical connection, the 3rd company extreme 203 and the first induced signal measurement end V+Electrical connection, the 4th connects pole The induced signal measurement end V of end 204 and second-Electrical connection.Specifically, the first power input Vcc1With second source input Vcc2 Bias voltage can be applied to pressure sensor 20 by the first connection end 201 and second connection end 202 of pressure sensor 20, The acceleration induction area of display panel is pressed in the presence of acceleration of the press section 102 in the moving object where display panel During A2, the acceleration induction area A2 of display panel is deformed upon, and the resistance of the straingauge 211 of pressure sensor 20 becomes Change, its corresponding first induced signal measurement end V+With the second induced signal measurement end V-The compliance voltage of output occurs corresponding Change, then the press section 102 that can be subject to by detecting the change detection pressure sensor 20 of voltage on straingauge 211 Pressure, computing circuit and then the pressure and the quality of press section 102 that are detected according to pressure sensor 20 obtain display panel institute In the acceleration of moving object.
Optionally, Fig. 9 is the structural representation of another pressure sensor provided in an embodiment of the present invention.It is different from Fig. 8 , the first connection end 201, second is connected Fig. 9 into extreme 202, the 3rd connection end 203 and the 4th connection end 204 is independently set The protuberance being set on four sides of quadrangle pressure sensor 20.It is same to set the first company extreme 201 defeated with the first power supply Enter to hold Vcc1Electrical connection, second connects extreme 202 and second source input Vcc2Electrical connection, the 3rd, which connects extreme 203 and first, senses Signal measurement end V+Electrical connection, the 4th company extreme 204 and the second induced signal measurement end V-Electrical connection.It carries out pressure detecting Principle is identical with the Cleaning Principle of the pressure sensor 20 shown in Fig. 8, repeats no more here.Exemplary, first can be set Connection end 201, second connects extreme 202, the 3rd connection end 203 and the 4th connection end 204 and the strain resistor of pressure sensor 20 Piece 211 is made of identical material, can so be effectively reduced the first connection end 201, second and be connected extreme 202, the 3rd connection Schottky barrier between the connection end 204 of end 203 and the 4th and the straingauge 211 of pressure sensor 20, is further improved The accuracy of detection of pressure sensor 20.
Optionally, Figure 10 is the structural representation of another pressure sensor provided in an embodiment of the present invention.Figure 10 is in Fig. 8 On the basis of the shown structure of pressure sensor 20, void region 212 can be set on pressure sensor 20.Due to pressure sensing Straingauge 211 in device 20 is full slice system resistance, by the setting of void region 212, reduces straingauge 211 Area is turned on, that is, increases the resistance of pressure sensor 20.Due to the first power input Vcc1, second source input Vcc2、 First induced signal measurement end V+With the second induced signal measurement end V-Cabling between pressure sensor 20 is respectively provided with certain Line hinders, and by setting void region 212 to increase the resistance of pressure sensor 20 on pressure sensor 20, can increase pressure biography Sensor 20 relative to cabling intrinsic standoff ratio, i.e., in the first power input Vcc1With second source input Vcc2The biased electrical of input In the case of pressing identical, the compliance voltage of pressure sensor 20 can be increased, increase the accuracy of detection of pressure sensor 20, and then The accuracy of detection of the acceleration of moving object where raising display panel.
It should be noted that the embodiment of the present invention shows that accompanying drawing is the size of exemplary each element of expression and each film layer Thickness, do not represent each element and each film layer actual size in display panel.
The embodiment of the present invention is by setting the pressure sensor 20 of display panel to be located at the acceleration induction area of display panel A2, the corresponding acceleration induction area A2 of pressing structure 10 is set, and sets pressing structure 10 to be contacted with acceleration induction area A2, simultaneously Setting the direct of travel of acceleration induction area A2 and object where display panel has more than 0 °, the first angle less than 180 °, Realize when the object of which movement where display panel produces the acceleration by acceleration induction area A2 towards the direction of press section 102 When, press section 102 can press the acceleration induction area A2 of display panel, set acceleration induction area A2 pressure sensor 20 Detect the size that press section 102 presses acceleration induction area A2 pressure, set computing circuit according to pressure sensor 20 by by The pressure of splenium 102, realize the detection to the moving object acceleration where display panel.In addition, the application is relative to existing Technology avoids the deep hole technique in acceleration transducer manufacturing process, and it is good to solve acceleration transducer making in the prior art The problem of rate is low, and cost of manufacture is high.
The embodiment of the present invention additionally provides a kind of display device, and Figure 11 is a kind of display device provided in an embodiment of the present invention Structural representation.As shown in figure 11, display device 6 includes the display panel 7 in above-described embodiment, therefore the embodiment of the present invention The display device 6 of offer also possesses the beneficial effect described in above-described embodiment, and here is omitted.Exemplary, display Device 6 can be display device for mounting on vehicle, then the display panel 7 in above-described embodiment can realize the detection to pickup.
The embodiment of the present invention additionally provides a kind of acceleration detection method based on above-described embodiment display panel, Tu12Wei A kind of schematic flow sheet of acceleration detection method provided in an embodiment of the present invention, the acceleration detection method, which can be applied, to be needed The scene to be detected to the acceleration of moving object, it can be performed by display panel provided in an embodiment of the present invention.Should Method includes：
S110, obtain the pressure that pressure sensor is subject to.
With reference to Fig. 1 and Fig. 2, when the moving object where display panel has along the acceleration in BB ' directions, press section 102 press the acceleration induction area A2 of display panel along B ' B directions, and the pressure sensor 20 for being arranged on acceleration induction area A2 can To detect the pressure size that press section 102 presses acceleration induction area A2.
Moving object where S120, the pressure being subject to according to pressure sensor and press section quality acquisition display panel Acceleration.
With reference to Fig. 1 and Fig. 2, the computing circuit being arranged in display panel, such as computing circuit can be shown with integrated driving The driving chip that panel is shown, obtain the press section 102 that pressure sensor 20 detects and press display panel acceleration sense Area A2 pressure is answered, the moving object according to where the pressure of acquisition and the quality of press section 102 can obtain display panel Acceleration.
The embodiment of the present invention obtains pressure sensing by being integrated in the pressure sensor in the acceleration induction area of display panel The pressure that device is subject to, and the moving object where the pressure and the quality acquisition display panel of press section being subject to according to pressure sensor The acceleration of body, while the detection to the moving object acceleration where display panel is realized, relative to prior art, The deep hole technique in acceleration transducer manufacturing process is avoided, acceleration transducer in the prior art is solved and makes yield It is low, the problem of cost of manufacture is high.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes, Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.

Claims (17)

  1. A kind of 1. display panel, it is characterised in that including：
    Viewing area and acceleration induction area；The acceleration induction area and the traveling side of the moving object where the display panel To with the first angle, first angle is more than 0 °, less than 180 °；
    Pressing structure and at least one pressure sensor, the pressure sensor are located at the acceleration induction area；It is described to press Laminated structure corresponds to the acceleration induction area and set；
    The pressing structure includes fixed support, press section and flexible member, and the fixed support is fixed on the display panel In the moving object at place, the press section contacts with the acceleration induction area of the display panel, the flexible member One end connects the fixed support, and the other end connects the press section；
    Computing circuit, the computing circuit are used for pressure according to the pressure sensor by the press section, described in detection The acceleration of moving object where display panel.
  2. 2. display panel according to claim 1, it is characterised in that first angle is 90 °.
  3. 3. display panel according to claim 1, it is characterised in that the viewing area of the display panel and it is described plus In velocity response area is generally aligned in the same plane.
  4. 4. display panel according to claim 1, it is characterised in that the viewing area of the display panel and it is described plus Velocity response area has the second angle, and second angle is more than 0 °, less than 180 °.
  5. 5. display panel according to claim 1, it is characterised in that the press section adds with the described of the display panel Velocity response area is fixedly connected.
  6. 6. display panel according to claim 5, it is characterised in that the press section passes through viscose and the display panel The acceleration induction area be fixedly connected.
  7. 7. display panel according to claim 6, it is characterised in that the viscose is rigid viscose.
  8. 8. display panel according to claim 1, it is characterised in that the telescopic direction of the flexible member and the display The direct of travel of moving object where panel is parallel.
  9. 9. display panel according to claim 1, it is characterised in that each pressure sensor includes：
    First inductive reactance, the second inductive reactance, the 3rd inductive reactance and the 4th inductive reactance；
    The first end of first inductive reactance and the first end of the 4th inductive reactance are electrically connected with the first power input Connect, the first end of the second end of first inductive reactance and second inductive reactance and the first induced signal measurement end electricity Connection, the second end of the 4th inductive reactance and the first end of the 3rd inductive reactance and the second induced signal measurement end Second end of electrical connection, the second end of second inductive reactance and the 3rd inductive reactance and second source input electricity Connection.
  10. 10. display panel according to claim 9, it is characterised in that
    The display panel includes the first bearing of trend and the second bearing of trend, first bearing of trend and second extension Direction is arranged in a crossed manner；
    First inductive reactance is more than by component of the development length of first end to the second end on first bearing of trend Component on second bearing of trend, second inductive reactance are prolonged by the development length of first end to the second end second The component stretched on direction is more than the component on the first bearing of trend, the 3rd inductive reactance prolonging to the second end by first end Component of the elongation on the first bearing of trend is more than the component on the second bearing of trend, and the 4th inductive reactance is by first Component of the development length to the second end on the second bearing of trend is held to be more than the component on the first bearing of trend.
  11. 11. display panel according to claim 1, it is characterised in that the pressure sensor is bulk, by semiconductor material Material is made, and it is shaped as the polygon for comprising at least four sides；
    The pressure sensor includes the first connection end, second connection end, the 3rd connection end and the 4th connection end；Described first connects End is connect to electrically connect with the first power input；The second connection end electrically connects with the second source input；Described 3rd Connection end electrically connects with the first induced signal measurement end；4th connection end electrically connects with the second induced signal measurement end；Institute State the first connection end, the second connection end, the 3rd connection end and the 4th connection end set respectively with it is described polygon On four sides of shape, where first connection end while with the second connection end where while be not attached to, it is described 3rd connect Connect end where while and the 4th connection end where while be not attached to.
  12. 12. display panel according to claim 11, it is characterised in that be provided with vacancy section on the pressure sensor Domain.
  13. 13. display panel according to claim 1, it is characterised in that also include：
    Multiple thin film transistor (TFT)s, each thin film transistor (TFT) include active layer；
    The pressure sensor makes with the active layer with layer；Or
    The pressure sensor makes with any metal level in the display panel with layer.
  14. 14. display panel according to claim 1, it is characterised in that the display panel is flexible display panels.
  15. 15. a kind of display device, it is characterised in that including the display panel described in claim any one of 1-14.
  16. 16. display device according to claim 15, it is characterised in that the display device is display device for mounting on vehicle.
  17. A kind of 17. acceleration detection method based on any one of the claim 1-14 display panels, it is characterised in that bag Include：
    Obtain the pressure that pressure sensor is subject to；
    Motion where the pressure and the quality acquisition display panel of the press section that are subject to according to the pressure sensor The acceleration of object.
CN201710522397.4A 2017-06-30 2017-06-30 Display panel, display device and acceleration detection method Active CN107340866B (en)

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