CN108267077A - A kind of flexible screen curved-ray tracing method, apparatus and a kind of flexible screen - Google Patents
A kind of flexible screen curved-ray tracing method, apparatus and a kind of flexible screen Download PDFInfo
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- CN108267077A CN108267077A CN201710005350.0A CN201710005350A CN108267077A CN 108267077 A CN108267077 A CN 108267077A CN 201710005350 A CN201710005350 A CN 201710005350A CN 108267077 A CN108267077 A CN 108267077A
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- flexible screen
- voltage
- bending
- foil gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a kind of flexible screen curved-ray tracing method, apparatus and a kind of flexible screen, for identifying the bending situation of flexible screen.The flexible screen includes：Flexible screen base and the multiple foil gauges for being integrated in the flexible screen substrate surface；Wherein, the multiple foil gauge forms bridge circuit by predetermined way.The flexible screen curved-ray tracing method, including：The information of voltage that multiple foil gauges in flexible screen base are integrated in flexible screen is obtained, the information of voltage includes voltage value and corresponding foil gauge location information；According to the information of voltage, the bending situation of the flexible screen is identified.
Description
Technical field
The present invention relates to display technology field more particularly to a kind of flexible screen curved-ray tracing method, apparatus and one kind are soft
Property screen.
Background technology
It is a kind of flexible under the background continued to develop with the development of terminal, especially mobile terminal, wearable terminal
Screen comes into being, i.e. flexible screen, because of its low-power consumption, flexible characteristic, is gradually widely used.Although flexible screen bendable
Song, but if generating overbending or bending, the display effect that can influence flexible screen even destroys the display work(of flexible screen
Energy.
The prior art can be judged, when judging whether to generate curved transitions by flexible screen in the manner shown in figure 1
Base 01 and 02 the two bases that go to a grassroots level are set as, the opposite top electrode 011 in installation position is under between Liang Ge bases
The two electrodes of electrode 012, and respectively two electrodes are applied with voltage not etc., when generating overbending, upper/lower electrode can produce
The raw contact situation as shown in part oval in figure so as to generate electric current, i.e., the prior art by electrode between two bases contact and
Electric current is generated to determine whether generating overbending or bending.
For to flexible screen further protection and monitoring, need to understand the bending situation of flexible screen in real time, but such as Fig. 1 institutes
The prior art shown is merely capable of judging whether produce overbending, and None- identified goes out the bending situation of flexible screen, including
None- identified go out be with where to generation bending.
Invention content
In view of the above problems, the present invention provides a kind of flexible screen curved-ray tracing method, apparatus and a kind of flexible screens, use
In the bending situation of identification flexible screen.
The present invention provides a kind of flexible screen curved-ray tracing method, including：
The information of voltage that multiple foil gauges in flexible screen base are integrated in flexible screen is obtained, the information of voltage includes
Voltage value and corresponding foil gauge location information；
According to the information of voltage, the bending situation of the flexible screen is identified.
Preferably, according to the information of voltage, the bending situation of the flexible screen is identified, including：
According to the foil gauge location information, the bending position of the flexible screen is determined.
Preferably, the bending situation of the flexible screen is identified, including：
According to the voltage value, the bending size of the flexible screen is determined.
Preferably, the bending situation of the flexible screen is identified, including：
According to the voltage value and corresponding foil gauge location information, the bending direction of the flexible screen is determined.
The present invention provides a kind of flexible screen curved-ray tracing device, including：Acquiring unit and recognition unit, wherein,
The acquiring unit, for obtaining the information of voltage that multiple foil gauges in flexible screen base are integrated in flexible screen,
The information of voltage includes voltage value and corresponding foil gauge position；
The recognition unit, for according to the information of voltage, identifying the bending situation of the flexible screen.
Preferably, the recognition unit, is used for：
According to the foil gauge position, the bending position of the flexible screen is identified.
Preferably, the recognition unit, is used for：
According to the voltage value, the bending size of the flexible screen is identified.
Preferably, the recognition unit, is used for：
According to the voltage value and corresponding foil gauge location information, the bending direction of the flexible screen is identified.
The present invention provides a kind of flexible screen, including：Flexible screen base and it is integrated in the flexible screen substrate surface
Multiple foil gauges；Wherein, the multiple foil gauge forms bridge circuit by predetermined way.
Preferably, each foil gauge in the multiple foil gauge includes at least the strain resistor of a same direction.
Multiple foil gauges are integrated in flexible screen base in flexible screen, and all foil gauges are made up of predetermined way
Bridge circuit, when flexible screen generates bending, foil gauge will generate deformation, obtained by bridge circuit comprising voltage value and
The information of voltage of foil gauge location information can identify the bending situation of flexible screen according to information of voltage.Compared to existing
Technology can only be judged for whether there is overbending, the flexible screen and flexible screen curved-ray tracing method energy that the application provides
Enough identify the flexible screen bending situation for including whether occur including overbending.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the present invention, this hair
Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 for it is of the prior art judge flexible screen whether the schematic diagram of the method for overbending；
Fig. 2 is a kind of structure diagram of flexible screen provided by the invention；
Fig. 3 is a kind of principle schematic for identifying flexible screen and being bent situation provided by the invention；
Fig. 4 is the schematic diagram of flexible screen provided by the invention bending；
Fig. 5 is the structure diagram of foil gauge provided by the invention；
Fig. 6 is a kind of flow diagram of flexible screen curved-ray tracing method provided by the invention；
Fig. 7 is a kind of structure chart of flexible screen curved-ray tracing device provided by the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out all other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
The technical solution provided below in conjunction with attached drawing, each embodiment that the present invention will be described in detail.
As previously mentioned, the prior art can judge whether flexible screen generates overbending in the manner shown in figure 1, for example,
To upper base 01 and top electrode 011 on 02 can be gone to a grassroots level and lower electrode 012 applies different voltage or can also be only respectively
Voltage is applied to the electrode (top electrode 011) in a base (upper base 01), it can be by setting top electrode 011 and lower electrode
012 size and distance so that when there is the situation of the contact of two electrodes up and down as shown in position among Fig. 1, generate excessive
Bending, two electrodes can generate contact at this time, will generate electric current, detect electric current by external current sensing means, then may be used
To determine to produce overbending.But the prior art is only capable of judging whether to produce overbending, can not judge specific
Deformation quantity and can not judge be generated by which direction bending (bending there are two types of in a manner of, flexible screen raise up or to
Lower recess).In view of the above problems, the present invention provides a kind of flexible screen and a kind of flexible screen curved-ray tracing method, for knowing
The bending situation of other flexible screen.
A kind of flexible screen provided first the application is introduced, as shown in Fig. 2, the flexible screen provided for the application
Schematic diagram including flexible screen base 101 and is integrated in multiple foil gauges 102 on 101 surface of flexible screen base, in schematic diagram
In only part foil gauge is numbered, such as foil gauge 1, foil gauge 2, foil gauge 25, on 101 surface of Tu Zhong flexible screens base
Shown rectangle can represent foil gauge.In practical applications, multiple foil gauges 102 can be integrated in by photoetching technique
In flexible screen base 101, foil gauge here may refer to resistance strain gage.
The operation principle of resistance strain gage is based on " strain effect ", i.e., conductor or semi-conducting material are in the effect of external force
During lower generation mechanically deform, resistance value generates variation accordingly, and this phenomenon is known as " strain effect ".And to learn strain
Situation, it is necessary to detect the voltage change of resistance in foil gauge, also just need foil gauge forming bridge circuit.In practical application
In, multiple foil gauges 102 can be formed into bridge circuit, for example can be single armed working method there are many mode：In electric bridge only
There are one arm accesses to be measured, other three arms use fixed resistance；It can also be both arms working method：Two arm accesses of electric bridge
It is measured, another two is known as both arms work electric bridge, also known as half-bridge form for fixed resistance；It can also be full-bridge mode：Such as
Four bridge arms of fruit, which all access to be measured, is then known as full bridge formation.
It is highlighted below by each foil gauge in multiple foil gauges 102 with (the also known as single armed wiring of single armed working method
Method) composition bridge circuit situation.As shown in figure 3, the schematic diagram for single armed connection, wherein R1For one in foil gauge 102
A strain resistor, R5、R6And R7For the fixed resistance other than foil gauge, U0For the voltage value between 1. and 3., when flexible screen is produced
After raw bending, R1Change as R1+△R1, according to following formula, deformation quantity and U can be shifted out onto0Relationship：
U0=U①- U③
=((R1+△R1)/(R1+△R1+R5)-R7/(R7+R6)〕E
={ ((R7+R6)(R1+△R1)-R7(R5+R1+△R1)〕/〔(R5+R1+△R1)(R7+R6)〕}E
If R1=R5=R6=R7, and △ R1/R1=Δ R/R<<1, Δ R/R=K ε, K are sensitivity coefficient；
Then U0≈(1/4)(△R1/R1) E=(1/4) (△ R/R) E=(1/4) K ε E
K=(1+2 μ)；
Wherein, E is energy of position, and μ is the Poisson's ratio of material, and ε is deformation quantity.
As shown from the above formula, when strain resistor does not generate deformation, due to R1=R5=R6=R7, then U0=0, when passing through
After bridge circuit gets voltage readings, it is possible to determine the deformation quantity of strain resistor on the corresponding foil gauge of the circuit.So
When flexible screen is bent, it is possible to by the voltage readings of multiple bridge circuits, identify the bending situation of flexible screen, i.e.,
Pass through U0Determine ε.
Deformation quantity is determining according to the mechanically deform that the strain resistor on foil gauge generates, but strain resistor is also
It is directive, such as the strain resistor of rectangle, the deformation of different directions is it is determined that go out different deformation quantities, so strain resistor
Direction be also that emphasis is needed to consider the problems of.In practical applications, if the direction of the strain resistor on multiple foil gauges is equal
The bending situation of difference, just more difficult determining entire flexible screen, so in one embodiment, in order to more accurately identify flexibility
The bending situation of screen, each foil gauge in multiple foil gauge 102 can include at least the strain resistor of a same direction.
Specifically, such as in multiple foil gauges 102 as shown in Figure 2, it can preset a level in the middle of each foil gauge and put
The rectangle strain resistor put, when flexible screen generates bending as shown in Figure 4, foil gauge 3,8,13,18 and 23, the shape of generation
It is consistent in variable theory.
In practical applications, it in order to further improve the accuracy of identification flexible screen bending situation, can also be answered each
Become on piece setting multiple angles strain resistor, as shown in figure 5, can respectively three directions (horizontal direction, vertical direction with
And the angular bisector direction of horizontal direction and vertical direction angle) setting strain resistor.When being bent, it is possible to comprehensive each
The deformation quantity in a direction more accurately identifies bending situation.
After flexible screen has been introduced, correspondingly, based on identical invention thinking, the application provides a kind of flexible screen bending and knows
Other method, Fig. 6 are the flow diagram of this method, are included the following steps：
Step 11：Obtain the information of voltage that multiple foil gauges in flexible screen base are integrated in flexible screen.
By the agency of above is integrated with multiple foil gauges in flexible screen base, and after deformation is generated, foil gauge can generate
Deformation causes the bridge circuit belonging to foil gauge to generate voltage change, so this step, which can obtain, is integrated in flexible screen base
The information of voltage of multiple foil gauges on layer, wherein, voltage value, i.e., the U introduced above can be included in information of voltage0, by
The foil gauge that can lead to different location in different bendings generates different deformation, so the position letter of foil gauge can also be obtained
Breath.For example can be preset coordinate.Concrete implementation mode can set a signal processor outside flexible screen, be used for
Obtain the information of voltage comprising voltage value and corresponding foil gauge location information.
Step 12：According to the information of voltage, the bending situation of the flexible screen is identified.
In above-mentioned steps, the voltage letter comprising voltage value and corresponding foil gauge location information has been got
Breath, so this step according to these information, can identify the bending situation of flexible screen.
It specifically, then can be according only to voltage value, according to U to determine bending size0=(1/4) K ε E are determined
Go out to be bent size, so this step can include：According to voltage value, the bending size of the flexible screen is determined.
To determine the position of bending, then it is assured that according only to foil gauge location information, so this step may be used also
To include：According to foil gauge location information, the bending position of the flexible screen is determined.For example, as shown in Fig. 2, when foil gauge 3,8,
13rd, 18 and 23, deformation is generated, then can determine that flexible screen has been likely to occur bending as shown in Figure 4.
It in practical applications, can be with integrated voltage numerical value and foil gauge position in order to further determine bending direction is gone out
Information, so this step can also include：According to voltage value and corresponding foil gauge location information, the curved of flexible screen is determined
Qu Fangxiang.For example, when determining that foil gauge 3,8,13,18 and 23 generates deformation, and determines the electrostrictive strain of horizontal direction
Resistive is long, then can determine that bending as shown in Figure 5 occurs in flexible screen.
In practical applications, can according to demand, freedom and flexibility according to the voltage value of all directions strain resistor and
Corresponding foil gauge location information, determines bending situation.
The emphasis of concern is remained in view of curved transitions, so this method can also include：When determining that bending situation expires
During sufficient overbending condition, determine overbending occur.For example it is more than predetermined threshold value that overbending condition, which can be deformation quantity, is had
Body is such as when bending situation as shown in Figure 5 occur, when the deformation quantity of foil gauge 3,8,13,18 and 23 is more than predetermined threshold value
When, it is determined that there is overbending.
It in practical applications, also can be in terminal in application, for guarantor due to that can determine bending situation in real time
The purpose of shield prompts the bending situation of user's flexible screen, for example, the feelings of overbending occurs in use in prompting user
Condition.
It is integrated using above-mentioned flexible screen and flexible screen curved-ray tracing method, in the flexible screen base in flexible screen more
A foil gauge, and all foil gauges are formed into bridge circuit by predetermined way, when flexible screen generates bending, foil gauge will
Deformation is generated, the information of voltage comprising voltage value and foil gauge location information is obtained by bridge circuit, it can be according to electricity
Pressure information identifies the bending situation of flexible screen.It can only judge compared with the prior art for whether there is overbending, this
The flexible screen provided is provided and flexible screen curved-ray tracing method can recognize that include whether to occur it is soft including overbending
Property screen bending situation.
Based on identical invention thinking, the application also provides a kind of flexible screen curved-ray tracing device, for identifying flexible screen
Bending situation.The structure chart as shown in Figure 7 of the device, including：Acquiring unit 21 and recognition unit 22, wherein,
Acquiring unit 21 can be used for obtaining the voltage letter for being integrated in multiple foil gauges in flexible screen base in flexible screen
Breath, information of voltage include voltage value and corresponding foil gauge position；
Recognition unit 22 can be used for according to information of voltage, identify the bending situation of flexible screen.
In one embodiment, recognition unit 22 can be used for：
According to foil gauge position, the bending position of flexible screen is identified.
In one embodiment, recognition unit 22 can be used for：
According to voltage value, the bending size of flexible screen is identified.
In one embodiment, recognition unit 22 can be used for：
According to voltage value and corresponding foil gauge location information, the bending direction of flexible screen is identified.
Based on multiple foil gauges integrated in the flexible screen base in flexible screen, and all foil gauges are passed through into predetermined way
Bridge circuit is formed, using above-mentioned flexible screen curved-ray tracing device, can be obtained when flexible screen generates bending comprising voltage
The information of voltage of numerical value and foil gauge location information identifies the bending situation of flexible screen according to information of voltage.Compared to existing
Technology can only be judged for whether there is overbending, the flexible screen and flexible screen curved-ray tracing method energy that the application provides
It enough identifies and includes whether that the flexible screen for overbending occur is bent situation.
The foregoing is merely the embodiment of the present invention, are not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.All any modifications made within spirit and principles of the present invention are equal
Replace, improve etc., it should be included within scope of the presently claimed invention.
Claims (10)
- A kind of 1. flexible screen curved-ray tracing method, which is characterized in that including：The information of voltage that multiple foil gauges in flexible screen base are integrated in flexible screen is obtained, the information of voltage includes voltage Numerical value and corresponding foil gauge location information；According to the information of voltage, the bending situation of the flexible screen is identified.
- 2. according to the method described in claim 1, it is characterized in that, according to the information of voltage, the curved of the flexible screen is identified Bent situation, including：According to the foil gauge location information, the bending position of the flexible screen is determined.
- 3. according to the method described in claim 1, it is characterized in that, identify the bending situation of the flexible screen, including：According to the voltage value, the bending size of the flexible screen is determined.
- 4. according to the method described in claim 1, it is characterized in that, identify the bending situation of the flexible screen, including：According to the voltage value and corresponding foil gauge location information, the bending direction of the flexible screen is determined.
- 5. a kind of flexible screen curved-ray tracing device, which is characterized in that including：Acquiring unit and recognition unit, wherein,The acquiring unit, it is described for obtaining the information of voltage that multiple foil gauges in flexible screen base are integrated in flexible screen Information of voltage includes voltage value and corresponding foil gauge position；The recognition unit, for according to the information of voltage, identifying the bending situation of the flexible screen.
- 6. device according to claim 5, which is characterized in that the recognition unit is used for：According to the foil gauge position, the bending position of the flexible screen is identified.
- 7. device according to claim 5, which is characterized in that the recognition unit is used for：According to the voltage value, the bending size of the flexible screen is identified.
- 8. device according to claim 5, which is characterized in that the recognition unit is used for：According to the voltage value and corresponding foil gauge location information, the bending direction of the flexible screen is identified.
- 9. a kind of flexible screen, which is characterized in that including：Flexible screen base and the multiple foil gauges for being integrated in the flexible screen substrate surface；Wherein, the multiple foil gauge leads to Cross predetermined way composition bridge circuit.
- 10. flexible screen according to claim 9, which is characterized in that each foil gauge in the multiple foil gauge is at least Include the strain resistor of a same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710005350.0A CN108267077A (en) | 2017-01-04 | 2017-01-04 | A kind of flexible screen curved-ray tracing method, apparatus and a kind of flexible screen |
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| CN201710005350.0A CN108267077A (en) | 2017-01-04 | 2017-01-04 | A kind of flexible screen curved-ray tracing method, apparatus and a kind of flexible screen |
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| CN201710005350.0A Pending CN108267077A (en) | 2017-01-04 | 2017-01-04 | A kind of flexible screen curved-ray tracing method, apparatus and a kind of flexible screen |
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| CN114120840A (en) * | 2021-12-11 | 2022-03-01 | 武汉华星光电半导体显示技术有限公司 | Deformation control method and deformation control device for flexible display panel |
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