CN107331300A - Flexible display panel and flexible display device - Google Patents
Flexible display panel and flexible display device Download PDFInfo
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- CN107331300A CN107331300A CN201710602564.6A CN201710602564A CN107331300A CN 107331300 A CN107331300 A CN 107331300A CN 201710602564 A CN201710602564 A CN 201710602564A CN 107331300 A CN107331300 A CN 107331300A
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- 239000010410 layer Substances 0.000 claims abstract description 86
- 239000011241 protective layer Substances 0.000 claims abstract description 65
- 238000005452 bending Methods 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims description 23
- 239000004065 semiconductor Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract 3
- 230000008859 change Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention provides a flexible display panel and a flexible display device. The flexible display panel includes: a first protective layer; the extrusion deformation layer is positioned on the first protective layer; the flexible display screen is positioned on one side of the extrusion deformation layer away from the first protective layer; the second protective layer is positioned on one side, far away from the first protective layer, of the flexible display screen; and the pressure sensor is positioned between the second protective layer and the extrusion deformation layer. In the embodiment of the invention, the pressure sensor can detect the bending degree of the flexible display panel, so that the use safety of the flexible display panel can be improved to a certain extent.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of flexible display panels and flexible display apparatus.
Background technology
Flexible display panels can be bent, but be influenceed by factors such as environment or the aging of product, when flexibility is aobvious
Show after panel bending to a certain extent, flexible display panels may be caused with irreversible damage, for example, in Flexible Displays face
Plate is used after certain time length, aging of product phenomenon occurs, if by flexible display panels doubling, making the side of flexible display panels
It is in contact along broken line, the power that now flexible display panels bending place is subject to is larger, may make the bending of flexible display panels
Place is damaged or fractures, and flexible display panels occur breakage or user may be damaged after fractureing, therefore prior art
In flexible display panels safety in utilization it is relatively low.
The content of the invention
The embodiment of the present invention provides a kind of flexible display panels and flexible display apparatus, soft to solve in the prior art
The problem of safety in utilization of property display panel is relatively low.
On the one hand, the embodiment of the present invention provides a kind of flexible display panels, and the flexible display panels include：
First protective layer；
Crimp layer, the crimp layer is located on first protective layer；
Flexible display screen, the flexible display screen is located at side of the crimp layer away from first protective layer；
Second protective layer, second protective layer is located at side of the flexible display screen away from first protective layer；
Pressure sensor, the pressure sensor is located between second protective layer and crimp layer.
On the other hand, the embodiment of the present invention additionally provides a kind of flexible display apparatus, including flexibility as described above shows
Show panel.
Any one technical scheme in above-mentioned technical proposal has the advantages that：
In embodiments of the present invention, the first protective layer is provided with flexible display panels；Crimp layer, crimp layer
On the first protective layer；Flexible display screen, flexible display screen is located at side of the crimp layer away from the first protective layer；Second
Protective layer, the second protective layer is located at side of the flexible display screen away from the first protective layer；Pressure sensor, pressure sensor is located at
Between second protective layer and crimp layer, after flexible display panels are arranged to said structure, occur in flexible display panels
During bending, the first protective layer is bent and extrudes crimp layer, and crimp layer can be compressed, and occur flexible display panels curved
The power produced during folding is delivered on pressure sensor, and the degree of flexible display panels bending is bigger, then is transferred to pressure biography
Power on sensor is also bigger, and the size for the power that user can detect according to pressure sensor adjusts the curved of flexible display panels
Folding degree, trying hard to keep of making that the bending places of flexible display panels is subject to is held within the specific limits, so as to improve to a certain extent
The safety in utilization of flexible display panels.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of top view of flexible display panels provided in an embodiment of the present invention；
Fig. 2 is along a kind of sectional view on AA ' directions in Fig. 1；
Fig. 3 be Fig. 2 in flexible display panels bent along folding line after schematic diagram；
Fig. 4 is the top view of another flexible display panels provided in an embodiment of the present invention；
Fig. 5 is the top view of another flexible display panels provided in an embodiment of the present invention；
Fig. 6 is along another sectional view on AA ' directions in Fig. 1；
Fig. 7 is the top view of another flexible display panels provided in an embodiment of the present invention；
Fig. 8 is the top view of another flexible display panels provided in an embodiment of the present invention；
Fig. 9 is the top view of another flexible display panels provided in an embodiment of the present invention；
Figure 10 is the top view of another flexible display panels provided in an embodiment of the present invention；
Figure 11 is along a kind of sectional view on BB ' directions in Figure 10；
Figure 12 be Figure 11 in flexible display panels bend after schematic diagram；
Figure 13 is along another sectional view on BB ' directions in Figure 10；
Figure 14 be Figure 13 in flexible display panels bend after schematic diagram；
Figure 15 is along another sectional view on BB ' directions in Figure 10；
Figure 16 be Figure 15 in flexible display panels bend after schematic diagram；
Figure 17 is a kind of structural representation of the resistive pressure sensor provided in the embodiment of the present invention；
Figure 18 is the structural representation of another resistive pressure sensor provided in the embodiment of the present invention；
Figure 19 is a kind of flexible display apparatus provided in an embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The term used in embodiments of the present invention is the purpose only merely for description specific embodiment, and is not intended to be limiting
The present invention." one kind ", " described " and "the" of singulative used in the embodiment of the present invention and appended claims
It is also intended to including most forms, unless context clearly shows that other implications.
It should be noted that the noun of locality such as " on ", " under ", "left", "right" described by the embodiment of the present invention is with accompanying drawing
Shown angle should not be construed as the restriction to the embodiment of the present invention come what is be described.In addition within a context, in addition it is also necessary to manage
Solution, when mentioning an element and being formed on "above" or "below" another element, it can not only be formed directly into another
Individual element " on " or " under ", can also be indirectly formed by intermediary element another element " on " or " under ".
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figure 1 (pressure sensor is only illustrated to be located between flexible display screen and the second protective layer, and pressure is passed
Sensor is situation multiple and in array distribution), Fig. 1 is a kind of vertical view of flexible display panels provided in an embodiment of the present invention
Figure, as shown in Fig. 2 Fig. 2 is along a kind of sectional view on AA ' directions in Fig. 1, as shown in figure 3, Fig. 3 is the Flexible Displays in Fig. 2
Panel bent along folding line after schematic diagram, wherein, flexible display panels include：First protective layer 11；Crimp layer
12, crimp layer 12 is located on the first protective layer 11；Flexible display screen 13, it is remote that flexible display screen 13 is located at crimp layer 12
From the side of the first protective layer 11；Second protective layer 14, the second protective layer 14 is located at flexible display screen 13 away from the first protective layer
11 side；Pressure sensor 15, pressure sensor 15 is located between the second protective layer 14 and crimp layer 12.
Alternatively, as shown in Figure 1, Figure 2 and Fig. 3, pressure sensor 15 is arranged on the protective layer 14 of flexible display screen 13 and second
Between after, when flexible display panels are bent, the first protective layer 11 bend and extrude crimp layer 12, bend region pair
Answer crimp layer 12 can be compressed, now crimp layer 12 by bend flexible display panels when deformation power change in order to
Extruding force, and extruding force is delivered on pressure sensor 15 by flexible display screen 13, and flexible display panels bending
Degree is bigger, then the power being transferred on pressure sensor 15 is also bigger, what user can detect according to pressure sensor 15
The size of power adjusts the bending degree of flexible display panels, and the power for being subject to the bending place of flexible display panels is maintained at certain model
In enclosing, so as to improve the safety in utilization of flexible display panels to a certain extent.Wherein, the first protective layer 11 is additionally operable to protect
Shield crimp layer 12 is not damaged by, and the second protective layer 14 is used to protect pressure sensor 15 to be not damaged by, second protective layer
14 can also play a part of protecting flexible display screen 13.Also, because crimp layer 12 can occur under force
Deformation, therefore when the side that the first protective layer 11 is provided with flexible display panels is hit, crimp layer 12 can
Deform upon, play a part of buffering, and then reduce flexible display panels to receive the probability damaged during shock.
Alternatively, as shown in Figure 1, Figure 2 and Figure 3, the power that flexible display panels can detect pressure sensor 15 shows
Show to come, with for reference, and it is possible to set a pressure threshold in advance, detected in pressure sensor 15 flexible aobvious
Show after the power being subject to during panel bending, the corresponding numerical value of the power is sent to the driving in flexible display panels by pressure sensor 15
Chip, the driving chip judges whether the numerical value of the power is more than the pressure threshold, flexible when the numerical value is more than the pressure threshold
Display panel can issue the user with prompt message, and the prompt message can be to show that pressure is excessive etc. in flexible display panels
Text information, or, it can be shaken for flexible display panels, then or, voice can be sent for flexible display panels and carried
Show information etc., alternatively prompt message is not especially limited herein.It should be noted that flexible display panels can also include control
After device processed, the power being subject to when pressure sensor 15 detects flexible display panels bending, pressure sensor 15 is corresponding by the power
Numerical value be sent to controller in flexible display panels, the controller judges whether the numerical value of the power is more than the pressure threshold,
When the numerical value is more than the pressure threshold, flexible display panels can issue the user with prompt message.
Alternatively, as shown in Figure 1, Figure 2 and Figure 3, pressure sensor 15 can include it is multiple, and in array distribution mode
It is arranged in flexible display panels, flexible display panels, when bending, are that shape occurs for some region of flexible display panels
Become, and the corresponding pressure sensor 15 in region only deformed upon is able to detect that power, therefore in flexible display panels hair
During raw bending, the coverage of the pressure sensor 15 of power can be detected by judgement, flexible display panels are determined
The size of the scope of deformation, and, the position of pressure sensor 15 of power can be detected by judgement, is determined flexible aobvious
Show the position that panel is deformed upon.
Alternatively, as shown in figure 4, Fig. 4 is the top view of another flexible display panels provided in an embodiment of the present invention, its
In, the flexible display panels include viewing area 1 and non-display area 2, when pressure sensor 15 includes multiple, multiple pressure
Sensor 15 can be arranged in non-display area 2, because flexible display panels are when folding line 16 is bent, the folding line
16 can run through relative two ends in flexible display panels, i.e., in non-display area 2 there is also bending region, therefore by multiple pressure
When sensor 15 is arranged in non-display area 2, the current bending degree of flexible display panels can also be detected, also, by
It is positioned only in pressure sensor 15 in non-display area 2, therefore the number of the pressure sensor 15 set is relatively fewer, therefore
It can reduce the cost of manufacture of flexible display panels, and can reduce interference of the pressure sensor 15 to flexible display panels,
So that flexible display panels are smaller by being influenceed in display image；As shown in figure 5, Fig. 5 is provided in an embodiment of the present invention
The top view of another flexible display panels, when pressure sensor 15 includes multiple, multiple pressure sensors 15 can be in battle array
The mode of column distribution is arranged in viewing area 1, and such design can not only detect the bending of flexible display panels currently
Degree, also helps the narrow frame for realizing flexible display panels.
It should be noted that flexible display screen can be the corresponding display screen of Organic Light Emitting Diode, or it is miniature luminous
The corresponding display screen of diode.
Alternatively, as shown in fig. 6, Fig. 6 be Fig. 1 in along another sectional view on AA ' directions, wherein, flexible display screen
13 include the first flexible base board and the second flexible base board, and the first flexible base board is located at flexible display screen 13 close to crimp layer 12
Side, the second flexible base board be located at the first flexible base board close to crimp layer 12 side；Pressure sensor 15 is located at the
Between one flexible base board and the second flexible base board.
Alternatively, as shown in fig. 6, pressure sensor 15 is arranged on into the first flexible base board 131 and the second flexible base board 132
Between after, when flexible display panels are bent, the first protective layer 11 bend and extrude crimp layer 12, crimp layer
12 can be compressed, and now crimp layer 12 changes the power being subject to when bending flexible display panels for extruding force, and passes through
Extruding force is delivered on pressure sensor 15 by the second flexible base board 132, and the degree of flexible display panels bending is bigger, then
The power being transferred on pressure sensor 15 is also bigger, the size adjustment for the power that user can detect according to pressure sensor 15
The bending degree of flexible display panels, trying hard to keep of making that the bending places of flexible display panels is subject to is held within the specific limits, so that
The safety in utilization of flexible display panels is improved to a certain extent.Wherein, when the flexible base of setting first on flexible display screen 13
After the flexible base board 132 of plate 131 and second, more preferable protective effect, the first flexible base board 131 can be played to flexible display screen 13
Making material with the second flexible base board 132 can be polyimides.
Alternatively, as shown in Figures 2 and 3, pressure sensor 15 is located at flexible display screen 13 away from the first protective layer 11
Side.
It should be noted that the set location of pressure sensor can be set according to actual needs, pressure sensor
Set location be not limited in position as shown in Fig. 2, Fig. 3 and Fig. 6, other positions can also being arranged on, particular location exists
This is not especially limited.
Alternatively, as shown in fig. 7, Fig. 7 is the top view of another flexible display panels provided in an embodiment of the present invention, its
In, flexible display screen 13 include multiple light-emitting zones 17, orthographic projection of the pressure sensor 15 on flexible display screen 13 with it is multiple
Light-emitting zone 17 is not overlapped.
Alternatively, as shown in fig. 7, flexible display panels project light by multiple light-emitting zones 17, and then it can show
Image, in order to not influence the light extraction of flexible display panels, the orthographic projection of the pressure sensor 15 of setting on flexible display screen 13
It is not overlapping with multiple light-emitting zones 17.
Alternatively, as shown in figure 8, Fig. 8 is the top view of another flexible display panels provided in an embodiment of the present invention, its
In, flexible display panels include at least one bending region 18, and pressure sensor 15 is in array distribution in bending region 18.
Alternatively, as shown in figure 8, in bending region 18 any bending can occur for flexible display panels, in order to reduce
The cost of manufacture of flexible display panels, in the flexible display panels including at least one bending region 18, pressure sensor 15
It is arranged in bending region 18, and to realize the purpose of detection crooked place and bending scope, pressure sensor 15 needs whole
The mode of array distribution is arranged in bending region 18.Also, as shown in figure 8, the flexible display panels can be along any bending
Region 18 is bent.
Alternatively, as shown in figure 9, Fig. 9 is the top view of another flexible display panels provided in an embodiment of the present invention, its
In, flexible display panels include a bending axle 19, and pressure sensor 15 is arranged successively along the vertical direction with bending axle 19.
Alternatively, as shown in figure 9, when including a bending axle 19 in flexible display panels, the flexible display panels are only
It can be bent along the bending axle 19, in order to realize the detection to flexible display panels bending degree, by the edge of pressure sensor 15
Arranged successively with the vertical direction of bending axle 19, along the direction vertical with bending axle 19, the number of pressure sensor 15 can be with
Set according to actual conditions, for example, a line pressure sensor 15 can be set, or, two row pressure sensors 15 can be set,
Again or, several orientations pressure vertical with bending the bearing of trend of axle 19 can be designed in bending axle 19 corresponding region
Force snesor 15, it is necessary to explanation, when flexible display panels include one bending axle 19 when, the pressure sensor 15 of setting
Arragement direction can be in other angles with the bearing of trend for bending axle 19, for example, 45 °, or 0 ° etc., but it is the need to ensure that setting
Orthographic projection of orthographic projection of the pressure sensor 15 in flexible display panels with bending axle 19 on a display panel overlap mutually, and
Deformation power when flexible display panels are bent can be accurately detected, the specific set-up mode of pressure sensor 15 is not made herein
It is specific to limit.
Alternatively, (feelings that support column is located between the first protective layer and flexible display panels are only illustrated as shown in Figure 10
Condition), Figure 10 is the top view of another flexible display panels provided in an embodiment of the present invention, and as shown in figure 11, Figure 11 is Figure 10
A kind of middle sectional view along on BB ' directions, as shown in figure 12, Figure 12 be Figure 11 in flexible display panels bend after show
It is intended to, wherein, flexible display panels also include multiple support columns 20.
Alternatively, it is many when being provided between the first protective layer 11 and flexible display panels as shown in Figure 10, Figure 11 and Figure 12
During individual support column 20, after flexible display panels are bent, corresponding first protective layer 11 in region bent can occur
Deformation, corresponding first protective layer 11 in region without bending is not deformed upon, the first protective layer deformed upon
The 11 corresponding pressure sensings in region that on pressure conduction to pressure sensor 15, that is, will can be bent by crimp layer 12
Pressure can be just detected in device 15, therefore can make what is detected the scope bent and bend by above-mentioned design
Position is more accurate.
Alternatively, as shown in Fig. 1 to 12, pressure sensor 15 includes capacitance pressure transducer, 15 or resistive pressure is passed
Sensor 15.
Alternatively, as shown in Fig. 1 to 12, the type of pressure sensor 15 can be according to actual needs in flexible display panels
Selected, be not especially limited herein.
Alternatively, as is illustrated by figs. 11 and 12, when pressure sensor 15 include be resistive pressure sensor when, it is multiple
Support column 20 can be located between the first protective layer 11 and flexible display screen 13.
Alternatively, as is illustrated by figs. 11 and 12, when support column 20 be arranged on the first protective layer 11 and flexible display screen 13 it
Between when, after flexible display panels are bent, in the region bent, be provided with the region corresponding of support column 20
Crimp layer 12 between one protective layer 11 and flexible display screen 13 is not deformed upon, without the region correspondence of support column 20
The first protective layer 11 can be towards the side of flexible display screen 13 depression, and then cause the corresponding crimp in region layer 12
Deform upon, so by the corresponding crimp in region layer 12 by pressure conduction to corresponding pressure sensor 15, make pressure
Force snesor 15 detects the pressure of corresponding region.
Alternatively, as shown in Figure 13 and Figure 14, Figure 13 is along another sectional view on BB ' directions, Tu14Wei in Figure 10
Flexible display panels in Figure 13 bend after schematic diagram, wherein, what is included when pressure sensor 15 is capacitive pressure
During sensor, flexible display panels also include：Metal conducting layer 21, metal conducting layer 21 is located at the first protective layer 11 and extruding becomes
Between shape layer 12.
Alternatively, as shown in Figure 13 and Figure 14, can be in flexibility when pressure sensor 15 is capacitance pressure transducer,
Metal conducting layer 21, the metal conducting layer 21 and capacitance pressure transducer, formation electric capacity are set in display panel, work as flexibility
When display panel is bent, metal conducting layer 21 and/or capacitance pressure transducer, 15 can be deformed upon so that condenser type pressure
The distance between force snesor 15 and the metal conducting layer 21 change, and then cause the metal conducting layer 21 and the condenser type
The electric capacity of the formation of pressure sensor 15 changes, so as to detect the variable quantity of capacitance, then passes through the change of capacitance
Measure to detect bending degree that flexible display panels are current, simultaneously as the corresponding electric capacity in the region just meeting only bent
Change, therefore, it can what is determined the flexible display panels scope bent according to generation capacitance variations and bend
Position.It should be noted that when flexible display panels are bent, also being sensed comprising metal conducting layer 21 and capacitive pressure
Device 15 is deformed upon simultaneously, or the situation that simply capacitance pressure transducer, 15 is deformed upon, and those skilled in the art can be with
Set according to bending demand, Figure 14 illustrate only the situation that metal conducting layer 21 is deformed upon.
Need explanation to illustrate, when flexible display panels have touch controllable function, i.e., can be wrapped in flexible display panels
Include and block touch control electrode is provided with touch control layer, touch control layer, the touch control electrode can be multiplexed with capacitance pressure transducer, this is touched
Controlling electrode can be with metal conducting layer formation electric capacity, after flexible display panels are bent, touch control electrode and/or metallic conduction
Layer can be deformed upon so that the distance between touch control electrode and the metal conducting layer change, and then so that metal conducting layer
Changed with the electric capacity of touch control electrode formation, so as to detect the variable quantity of capacitance, then pass through the variable quantity of capacitance
To detect bending degree that flexible display panels are current, and according to occurring capacitance variations determine that flexible display panels are bent
Scope and the position that bends.
Alternatively, as shown in Figure 15 and Figure 16, Figure 15 is along another sectional view on BB ' directions, Tu16Wei in Figure 10
Flexible display panels in Figure 15 bend after schematic diagram, wherein, what is included when pressure sensor 15 is capacitive pressure
During sensor, flexible display panels can also include metal conducting layer 21, and metal conducting layer 21 can be located at the first protective layer 11
Side away from flexible display screen 13.
Alternatively, the operation principle on the corresponding flexible display panels of Figure 15 and Figure 16 is corresponding with Figure 13 and Figure 14 soft
The operation principle of property display panel is similar, and in this not go into detail.
Alternatively, as shown in Figure 13 and Figure 14, when metal conducting layer 21 is located at the first protective layer 11 and crimp layer 12
Between when, multiple support columns 20 be located between metal conducting layer 21 and flexible display screen 13.
Alternatively, as shown in Figure 15 and Figure 16, when metal conducting layer 21 is located at the first protective layer 11 away from flexible display screen
During 13 side, multiple support columns 20 are located between the protective layer 11 of flexible display screen 13 and first.
Alternatively, as shown in figure 17, Figure 17 is a kind of knot of the resistive pressure sensor provided in the embodiment of the present invention
Structure schematic diagram, wherein, press detection sensor includes：Pressure sensitivity electric bridge 151, first input end IN1, the second input IN2, first
Output end Fout1 and the second output end Fout2；Pressure sensitivity electric bridge 151 includes first resistor R1, second resistance R2,3rd resistor R3
With the 4th resistance R4；First resistor R1 first end is electrically connected with second resistance R2 first end, first resistor R1 the second end
Electrically connected with the first output end, second resistance R2 the second end is electrically connected with the second output end；3rd resistor R3 first end with
4th resistance R4 first end electrical connection, 3rd resistor R3 the second end electrically connects with the first output end, and the of the 4th resistance R4
Two ends are electrically connected with the second output end；First resistor R1 first end is electrically connected with first input end；The first of 3rd resistor R3
End is electrically connected with the second input.
Alternatively, as shown in figure 17, pressure sensitivity electric bridge 151 includes first resistor R1, second resistance R2,3rd resistor R3 and the
Four resistance R4, wherein, first resistor R1 first end is electrically connected with first input end IN1, second resistance R2 first end and the
One input IN1 is electrically connected, and first resistor R1 the second end is electrically connected with the first output end Fout1, and the second of second resistance R2
End is electrically connected with the second output end Fout2, and 3rd resistor R3 first end is electrically connected with the second input IN2, the 4th resistance R4
First end electrically connected with the second input IN2,3rd resistor R3 the second end is electrically connected with the first output end Fout1, the 4th
Resistance R4 the second end is electrically connected with the second output end Fout2, wherein, when display panel is not affected by ambient pressure, first resistor
R1 and 3rd resistor R3 ratio are equal to second resistance R2 and the 4th resistance R4 ratio, when display panel is by ambient pressure
When, touch-control display panel is deformed upon, then R1, R2, R3 and the R4 being arranged on the display panel can be deformed upon, and cause it
Resistance changes, and this will cause electric bridge disequilibrium, the first output end Fout1 of pressure sensitivity electric bridge 151 and the second output end
Fout2 will export different electric signals, and then the electric signal exported based on the first output end Fout1 and the second output end Fout2
The pressure value size of outer bound pair display panel can be determined.
Optionally, as shown in figure 17, when display panel is not affected by ambient pressure, first resistor R1 and second resistance R2 base
Quasi- resistance is identical, and 3rd resistor R3 and the 4th resistance R4 reference resistance are identical.
Alternatively, as shown in figure 17, under same ambient pressure, first resistor R1 and the 4th resistance R4 resistance change
Rate is identical, and second resistance R2 is identical with 3rd resistor R3 resistance change rate, first resistor R1 and second resistance R2 resistance
Value changes rate is different.
Alternatively, as shown in figure 18, Figure 18 is another resistive pressure sensor provided in the embodiment of the present invention
Structural representation, wherein, press detection sensor includes：Semiconductor resistor piece 152, first input end IN1, the second input
IN2, the first output end Fout1 and the second output end Fout2；Semiconductor resistor piece 152 is quadrilateral structure, wherein, semiconductor
The four edges of resistor disc 152 are electrically connected with first input end, the second input, the first output end and the second output end respectively, its
In, first input end and the second input are electrically connected relative two sides in four edges, the first output end and second defeated
Go out end and be electrically connected relative two other side in four edges.
Alternatively, as shown in figure 18, semiconductor resistor piece 152 can be quadrilateral structure, and four edges are defeated with first respectively
Enter to hold IN1, the second input IN2, the first output end Fout1 and the second output end Fout2 to be connected, first input end IN1 and
Second input IN2 is connected to two relative sides, and the first output end Fout1 and the second output end Fout2 are connected respectively
In relative two other side.When display panel is depressed to be deformed upon, the impedance of semiconductor resistor piece 152 accordingly occurs
Change, causes its compliance voltage also correspondingly to change so that the first output end Fout1 and the second output end Fout2 will be defeated
Go out different electric signals, and then can be determined outside based on the first output end Fout1 and the second output end Fout2 electric signals exported
The pressure value size of bound pair display panel.
Alternatively, when pressure sensor is resistive pressure sensor, the resistive pressure sensor can be single
Resistance, after flexible display panels are bent, the shape of the resistance also changes therewith, passes through the resistance alteration of form
Size detects the bending degree of flexible display panels.
Alternatively, as shown in Fig. 2, Fig. 3, Fig. 6 and Figure 11 to Figure 16, the material of crimp layer 12 can include foam.
Optionally, because foam is easily bent, and the shape that can resile after bending, therefore, such as Fig. 2,
Shown in Fig. 3, Fig. 6 and Figure 11 to Figure 16, when crimp layer 12 is made using foam, bent in flexible display panels
When, crimp layer 12 will not be smaller to flexible display panels generation reaction force, or the reaction force produced, substantially will not
Influence is produced when being bent on flexible display panels, and the power produced when can flexible display panels be bent is accurately passed
Pass pressure sensor；After flexible display panels resile shape, crimp layer 12 also follows the shape that resiles, will not be right
Flexible display panels resile shape when produce influence, so as to ensure that flexible display panels can be free folding and to resile
Shape.
It should be noted that crimp layer can also be made up of other materials, the selection principle of its material is in bending
When can deform upon, and the shape that can resile in the case where not stressing, is not susceptible to deformation, crimp layer is specific
Which kind of it is not especially limited herein using material.
Alternatively, as shown in Fig. 2, Fig. 3, Fig. 6 and Figure 11 to Figure 16, on the direction vertical with flexible display screen 13, squeeze
The thickness of compressive strain layer 12 can be 1mm-3mm.
Specifically, as shown in Fig. 2, Fig. 3, Fig. 6 and Figure 11 to Figure 16, when crimp layer 12 hangs down with flexible display screen 13
During thinner thickness on straight direction, when flexible display panels are deformed upon, the deformation quantity of crimp layer 12 is smaller so that
Crimp layer 12 transmission power it is inaccurate, when crimp layer 12 thickness on the direction vertical with flexible display screen 13 compared with
Bao Shi, when flexible display panels are deformed upon, the deformation quantity of crimp layer 12 is larger, flexible display apparatus can occurs broken
Damage, it is therefore desirable to which crimp 12 thickness on the direction vertical with flexible display screen 13 of layer is arranged on a suitable model
In enclosing, when on the direction vertical with flexible display screen 13, when the thickness of crimp layer 12 is 1mm-3mm, crimp layer
12 both can accurately transmit the power that flexible display panels are subject to, and flexible display apparatus can also be avoided to occur damaged.
It should be noted that the specific thickness of crimp layer can be actually needed with foundation and be set, do not make to have herein
Body is limited.
As shown in figure 19, Figure 19 is a kind of flexible display apparatus provided in an embodiment of the present invention, the flexible display apparatus bag
Include above-mentioned flexible display panels 100.Wherein, the concrete operating principle on flexible display panels 100 is no longer superfluous in detail herein
State.
It should be noted that display panel 100 involved in the embodiment of the present invention can include but is not limited to personal meter
It is calculation machine (Personal Computer, PC), personal digital assistant (Personal Digital Assistant, PDA), wireless
Handheld device, tablet personal computer (Tablet Computer), mobile phone, MP3 player, MP4 players etc..
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (16)
1. a kind of flexible display panels, it is characterised in that the flexible display panels include：
First protective layer；
Crimp layer, the crimp layer is located on first protective layer；
Flexible display screen, the flexible display screen is located at side of the crimp layer away from first protective layer；
Second protective layer, second protective layer is located at side of the flexible display screen away from first protective layer；
Pressure sensor, the pressure sensor is located between second protective layer and crimp layer.
2. flexible display panels as claimed in claim 1, it is characterised in that the flexible display screen includes the first flexible base board
With the second flexible base board, first flexible base board is located at the flexible display screen close to the side of crimp layer, institute
The second flexible base board is stated positioned at first flexible base board close to the side of crimp layer；
The pressure sensor is located between first flexible base board and second flexible base board.
3. flexible display panels as claimed in claim 1, it is characterised in that the pressure sensor is located at the Flexible Displays
Side of the screen away from first protective layer.
4. flexible display panels as claimed in claim 3, it is characterised in that the flexible display screen includes multiple luminous zones
Domain, orthographic projection of the pressure sensor on the flexible display screen is not overlapped with the multiple light-emitting zone.
5. flexible display panels as claimed in claim 1, it is characterised in that it is curved that the flexible display panels include at least one
Folding area domain, the pressure sensor is in array distribution in the bending region.
6. flexible display panels as claimed in claim 1, it is characterised in that the flexible display panels include a bending
Axle, the pressure sensor is arranged successively along the vertical direction with the bending axle.
7. flexible display panels as claimed in claim 1, it is characterised in that the flexible display panels also include：Multiple
Dagger.
8. flexible display panels as claimed in claim 7, it is characterised in that the pressure sensor is passed including capacitive pressure
Sensor or resistive pressure sensor.
9. flexible display panels as claimed in claim 8, it is characterised in that what is included when the pressure sensor is the electricity
During resistance pressure transducer, the multiple support column is located between first protective layer and the flexible display screen.
10. flexible display panels as claimed in claim 8, it is characterised in that what is included when the pressure sensor is described
During capacitance pressure transducer, the flexible display panels also include：
Metal conducting layer, the metal conducting layer is located between first protective layer and crimp layer, or, it is described
Metal conducting layer is located at the side of first protective layer away from the flexible display screen.
11. flexible display panels as claimed in claim 10, it is characterised in that
When the metal conducting layer is located between first protective layer and crimp layer, the multiple support column position
Between the metal conducting layer and the flexible display screen；
When the metal conducting layer is located at side of first protective layer away from the flexible display screen, the multiple support
Post is located between the flexible display screen and first protective layer.
12. flexible display panels as claimed in claim 8, it is characterised in that the resistive pressure sensor includes：
Pressure sensitivity electric bridge, first input end, the second input, the first output end and the second output end；
The pressure sensitivity electric bridge includes first resistor, second resistance, 3rd resistor and the 4th resistance；
The first end of the first resistor is electrically connected with the first end of the second resistance, the second end of the first resistor and institute
The electrical connection of the first output end is stated, the second end of the second resistance is electrically connected with second output end；
The first end of the 3rd resistor is electrically connected with the first end of the 4th resistance, the second end of the 3rd resistor and institute
The electrical connection of the first output end is stated, the second end of the 4th resistance is electrically connected with second output end；
The first end of the first resistor is electrically connected with the first input end；
The first end of the 3rd resistor is electrically connected with second input.
13. flexible display panels as claimed in claim 8, it is characterised in that the resistive pressure sensor includes：
Semiconductor resistor piece, first input end, the second input, the first output end and the second output end；
The semiconductor resistor piece is quadrilateral structure, wherein, the four edges of the semiconductor resistor piece are respectively with described first
Input, second input, first output end and second output end electrical connection, wherein, first input
End and second input are electrically connected relative two sides in the four edges, first output end and described the
Two output ends are electrically connected relative two other side in the four edges.
14. flexible display panels as claimed in claim 1, it is characterised in that the material of the crimp layer includes foam.
15. flexible display panels as claimed in claim 1, it is characterised in that in the direction vertical with the flexible display screen
On, the thickness of the crimp layer is 1mm-3mm.
16. a kind of flexible display apparatus, it is characterised in that including the flexibility as any one of above-mentioned claim 1 to 15
Display panel.
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|---|---|---|---|
| CN201710602564.6A CN107331300B (en) | 2017-07-21 | 2017-07-21 | Flexible display panel and flexible display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710602564.6A CN107331300B (en) | 2017-07-21 | 2017-07-21 | Flexible display panel and flexible display device |
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| CN107331300A true CN107331300A (en) | 2017-11-07 |
| CN107331300B CN107331300B (en) | 2019-09-27 |
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