CN107331300B - A kind of flexible display panels and flexible display apparatus - Google Patents

A kind of flexible display panels and flexible display apparatus Download PDF

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Publication number
CN107331300B
CN107331300B CN201710602564.6A CN201710602564A CN107331300B CN 107331300 B CN107331300 B CN 107331300B CN 201710602564 A CN201710602564 A CN 201710602564A CN 107331300 B CN107331300 B CN 107331300B
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flexible display
display panels
layer
pressure sensor
protective layer
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CN107331300A (en
Inventor
陈东华
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Shanghai Tianma Microelectronics Co Ltd
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Shanghai Tianma Microelectronics Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/301Indicating 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

Abstract

The embodiment of the present invention provides a kind of flexible display panels and flexible display apparatus.The flexible display panels include: the first protective layer;It is squeezed and deformed layer, layer is squeezed and deformed and is located on the first protective layer;Flexible display screen, flexible display screen, which is located at, is squeezed and deformed side of the layer far from the first protective layer;Second protective layer, the second protective layer are located at side of the flexible display screen far from the first protective layer;Pressure sensor, pressure sensor are located at the second protective layer and are squeezed and deformed between layer.In embodiments of the present invention, since pressure sensor is able to detect the bending degree of flexible display panels, the safety in utilization of flexible display panels can be improved to a certain extent.

Description

A kind of flexible display panels and flexible display apparatus
Technical field
The present invention relates to field of display technology more particularly to a kind of flexible display panels and flexible display apparatus.
Background technique
Flexible display panels can be bent, but be influenced by factors such as environment or the aging of product, when flexibility is aobvious After showing panel bending to a certain extent, may flexible display panels be caused with irreversible damage, for example, in Flexible Displays face After plate uses certain time length, there is aging of product phenomenon, if flexible display panels doubling is made the side of flexible display panels It is in contact along broken line, the power that flexible display panels bending place is subject at this time is larger, may make the bending of flexible display panels Place is damaged or fractures, and flexible display panels occur breakage or may damage to user after fractureing, therefore the prior art In flexible display panels safety in utilization it is lower.
Summary 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 lower problem of the safety in utilization of property display panel.
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;
It is squeezed and deformed layer, the extrusion deformation layer is located on first protective layer;
Flexible display screen, the flexible display screen are located at the extrusion deformation side of the layer far from first protective layer;
Second protective layer, second protective layer are located at side of the flexible display screen far from first protective layer;
Pressure sensor, the pressure sensor is between second protective layer and the extrusion deformation layer.
On the other hand, the embodiment of the invention also provides a kind of flexible display apparatus, aobvious including flexibility as described above Show panel.
Any one technical solution in above-mentioned technical proposal has the following beneficial effects:
In embodiments of the present invention, the first protective layer is provided in flexible display panels;It is squeezed and deformed layer, is squeezed and deformed layer On the first protective layer;Flexible display screen, flexible display screen, which is located at, is squeezed and deformed side of the layer far from the first protective layer;Second Protective layer, the second protective layer are located at side of the flexible display screen far from the first protective layer;Pressure sensor, pressure sensor are located at Between second protective layer and extrusion deformation layer, after flexible display panels are arranged to above structure, occur in flexible display panels When bending, the first protective layer is bent and squeezes extrusion deformation layer, and being squeezed and deformed layer can be compressed, and flexible display panels occurs curved The power generated when folding is transmitted 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 user can adjust the curved of flexible display panels according to the size for the power that pressure sensor detects Folding degree, the power for being subject to the bending place of flexible display panels are kept in a certain range, to improve to a certain extent The safety in utilization of flexible display panels.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.
Fig. 1 is a kind of top view of flexible display panels provided in an embodiment of the present invention;
Fig. 2 is a kind of sectional view in Fig. 1 on the direction AA ';
Fig. 3 be Fig. 2 in flexible display panels along folding line bend 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 another sectional view in Fig. 1 on the direction AA ';
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 a kind of sectional view in Figure 10 on the direction BB ';
Figure 12 is the schematic diagram after the flexible display panels in Figure 11 are bent;
Figure 13 is another sectional view in Figure 10 on the direction BB ';
Figure 14 is the schematic diagram after the flexible display panels in Figure 13 are bent;
Figure 15 is another sectional view in Figure 10 on the direction BB ';
Figure 16 is the schematic diagram after the flexible display panels in Figure 15 are bent;
Figure 17 is a kind of structural schematic diagram of the resistive pressure sensor provided in the embodiment of the present invention;
Figure 18 is the structural schematic diagram 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.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the" It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be noted that the nouns of locality such as "upper", "lower" described in the embodiment of the present invention, "left", "right" are with attached drawing Shown in angle come what is be described, should not be construed as the restriction to the embodiment of the present invention.Furthermore within a context, it is also necessary to manage Solution can not only be formed directly into another when mentioning an element and being formed on "above" or "below" another element Perhaps "lower" can also be indirectly formed by intermediary element in another element "upper" or "lower" for a element "upper".
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1 (pressure sensor is only illustrated between flexible display screen and the second protective layer and pressure passes Sensor be it is multiple and be in array distribution the case where), Fig. 1 be 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 a kind of sectional view in Fig. 1 on the direction AA ', as shown in figure 3, Fig. 3 is the Flexible Displays in Fig. 2 Panel along folding line bend after schematic diagram, wherein flexible display panels include: the first protective layer 11;It is squeezed and deformed layer 12, it is squeezed and deformed layer 12 and is located on the first protective layer 11;Flexible display screen 13, flexible display screen 13, which is located at, is squeezed and deformed layer 12 far Side from the first protective layer 11;Second protective layer 14, the second protective layer 14 are located at flexible display screen 13 far from the first protective layer 11 side;Pressure sensor 15, pressure sensor 15 are located at the second protective layer 14 and are squeezed and deformed between layer 12.
Optionally, pressure sensor 15 is arranged in flexible display screen 13 and the second protective layer 14 as shown in Figure 1, Figure 2 and Fig. 3 Between after, when flexible display panels are bent, the first protective layer 11 be bent simultaneously squeeze be squeezed and deformed layer 12, bend region pair The extrusion deformation layer 12 answered can be compressed, the deformation power transformation for being squeezed and deformed layer 12 at this time when will bend flexible display panels in order to Extruding force, and extruding force is transmitted 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 bending degree of the size adjustment flexible display panels of power, the power for being subject to the bending place of flexible display panels are maintained at certain model In enclosing, to improve the safety in utilization of flexible display panels to a certain extent.Wherein, the first protective layer 11 is also used to protect Shield is squeezed and deformed layer 12 and is not damaged, and the second protective layer 14 is for protecting pressure sensor 15 not to be damaged, second protective layer 14 can also play the role of protecting flexible display screen 13.Also, it can occur under force due to being squeezed and deformed layer 12 Deformation, therefore when the side for being provided with the first protective layer 11 in flexible display panels is hit, being squeezed and deformed layer 12 can Deformation occurs, plays the role of buffering, thereby reduces flexible display panels and receives the probability damaged when shock.
Optionally, as shown in Figure 1, Figure 2 and Figure 3, flexible display panels can show the power that pressure sensor 15 detects It shows and, with for reference, and it is possible to which a pressure threshold is arranged in advance, detected in pressure sensor 15 flexible aobvious After showing the power being subject to when 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 judge whether the numerical value of the power is greater than the pressure threshold, flexible when the numerical value is greater than the pressure threshold Display panel can issue the user with prompt information, which can be to show that pressure is excessive etc. in flexible display panels Text information alternatively, can shake for flexible display panels, then mentions alternatively, can issue voice for flexible display panels Show information etc., optionally prompt information is not specifically limited herein.It should be noted that flexible display panels can also include control Device processed, after pressure sensor 15 detects the power being subject to when flexible display panels bending, pressure sensor 15 is corresponding by the power Numerical value be sent to the controller in flexible display panels, which judges whether the numerical value of the power is greater than the pressure threshold, When the numerical value is greater than the pressure threshold, flexible display panels can issue the user with prompt information.
Optionally, as shown in Figure 1, Figure 2 and Figure 3, pressure sensor 15 may include multiple, and in a manner of array distribution It is arranged in flexible display panels, flexible display panels are that shape occurs for some region of flexible display panels when bending Become, and the corresponding pressure sensor 15 in region that only deformation occurs is able to detect that power, therefore sends out in flexible display panels When raw bending, the coverage area of the pressure sensor 15 of power can be detected by judgement, determines flexible display panels The size of the range of deformation, and, 15 position of pressure sensor of power can be detected by judgement, determined flexible aobvious Show the panel position that deformation occurs.
Optionally, as shown in figure 4, Fig. 4 is the top view of another flexible display panels provided in an embodiment of the present invention, In, which includes display area 1 and non-display area 2, when pressure sensor 15 includes multiple, multiple pressure Sensor 15 can be set in non-display area 2, since flexible display panels are when folding line 16 is bent, the folding line 16 can be opposite in the flexible display panels both ends, i.e., in non-display area 2, there is also bending regions, therefore by multiple pressure When sensor 15 is arranged in non-display area 2, the current bending degree of flexible display panels also can detecte out, also, by The number for the pressure sensor 15 for being positioned only in non-display area 2, therefore being arranged in pressure sensor 15 is relatively fewer, therefore The cost of manufacture of flexible display panels can be reduced, and interference of the pressure sensor 15 to flexible display panels can be reduced, So that flexible display panels are smaller by being influenced when displaying an 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 display area 1, and such design can not only detect the current bending of flexible display panels Degree also helps the narrow frame for realizing flexible display panels.
It should be noted that flexible display screen can for the corresponding display screen of Organic Light Emitting Diode or it is miniature shine The corresponding display screen of diode.
Optionally, as shown in fig. 6, Fig. 6 is another sectional view in Fig. 1 on the direction AA ', wherein flexible display screen 13 include first flexible substrate and second flexible substrate, and first flexible substrate is located at flexible display screen 13 close to extrusion deformation layer 12 Side, second flexible substrate be located at first flexible substrate close to be squeezed and deformed layer 12 side;Pressure sensor 15 is located at the Between one flexible base board and second flexible substrate.
Optionally, as shown in fig. 6, being arranged pressure sensor 15 in first flexible substrate 131 and second flexible substrate 132 Between after, when flexible display panels are bent, the first protective layer 11 be bent simultaneously squeeze be squeezed and deformed layer 12, be squeezed and deformed layer 12 can be compressed, and are squeezed and deformed layer 12 at this time and are changed the power being subject to when bending flexible display panels for extruding force, and pass through Extruding force is transmitted on pressure sensor 15 by second flexible substrate 132, and the degree of flexible display panels bending is bigger, then The power being transferred on pressure sensor 15 is also bigger, and user can adjust according to the size for the power that pressure sensor 15 detects The bending degree of flexible display panels, the power for being subject to the bending place of flexible display panels are kept in a certain range, thus 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 plate 131 and second flexible substrate 132, better protective effect, first flexible substrate 131 can be played to flexible display screen 13 Making material with second flexible substrate 132 can be polyimides.
Optionally, as shown in Figures 2 and 3, pressure sensor 15 is located at flexible display screen 13 far from the first protective layer 11 Side.
It should be noted that the setting position of pressure sensor can be set according to actual needs, pressure sensor Setting position be not limited in other positions can also being arranged in, specific location exists such as Fig. 2, Fig. 3 and position shown in fig. 6 This is not especially limited.
Optionally, as shown in fig. 7, Fig. 7 is the top view of another flexible display panels provided in an embodiment of the present invention, In, flexible display screen 13 include multiple light emitting regions 17, orthographic projection of the pressure sensor 15 on flexible display screen 13 with it is multiple Light emitting region 17 does not overlap.
Optionally, it as shown in fig. 7, flexible display panels project light by multiple light emitting regions 17, and then can show Image goes out light, orthographic projection of the pressure sensor 15 of setting on flexible display screen 13 in order to not influence flexible display panels It is not overlapping with multiple light emitting regions 17.
Optionally, as shown in figure 8, Fig. 8 is the top view of another flexible display panels provided in an embodiment of the present invention, In, flexible display panels include at least one bending region 18, and pressure sensor 15 is in array distribution in bending region 18.
Optionally, 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 for including at least one bending region 18, pressure sensor 15 In bending region 18, and to realize detection crooked place and bending the purpose of range, pressure sensor 15 needs whole for setting 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.
Optionally, as shown in figure 9, Fig. 9 is the top view of another flexible display panels provided in an embodiment of the present invention, In, flexible display panels include a bending axis 19, and pressure sensor 15 is successively arranged along the vertical direction with bending axis 19.
Optionally, as shown in figure 9, when in flexible display panels including a bending axis 19, the flexible display panels are only It can be bent along the bending axis 19, in order to realize the detection to flexible display panels bending degree, by 15 edge of pressure sensor It successively arranges with the vertical direction of bending axis 19, along the direction vertical with bending axis 19, the number of pressure sensor 15 can be with It is set according to actual conditions, for example, a line pressure sensor 15 can be set, alternatively, two row pressure sensors 15 can be set, Again alternatively, several orientations pressure vertical with 19 extending direction of axis is bent can be designed in the bending corresponding region of axis 19 Force snesor 15, it should be noted that when flexible display panels include a bending axis 19, the pressure sensor 15 of setting Arragement direction can be in other angles with the extending direction of bending axis 19, for example, 45 ° or 0 ° etc., but it is the need to ensure that setting Orthographic projection of the pressure sensor 15 in flexible display panels overlap mutually with the orthographic projection of bending axis 19 on a display panel, 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.
Optionally, (feelings of the support column 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, as shown in figure 11, Figure 11 Figure 10 A kind of middle sectional view on the direction BB ', as shown in figure 12, Figure 12 are showing after the flexible display panels in Figure 11 are bent It is intended to, wherein flexible display panels further include multiple support columns 20.
Optionally, more when being provided between the first protective layer 11 and flexible display panels as shown in Figure 10, Figure 11 and Figure 12 When a support column 20, after flexible display panels are bent, corresponding first protective layer 11 in the region bent can occur Deformation, corresponding first protective layer 11 in region without bending is there is no deformation, the first protective layer that deformation occurs 11 can be by being squeezed and deformed layer 12 on pressure conduction to pressure sensor 15, that is, the corresponding pressure sensing in the region bent Pressure can be just detected in device 15, therefore can be made to detect the range bent by above-mentioned design and be bent Position is more accurate.
Optionally, as shown in Fig. 1 to 12, pressure sensor 15 includes that capacitance pressure transducer, 15 or resistive pressure pass Sensor 15.
Optionally, as shown in Fig. 1 to 12, the type of pressure sensor 15 can be according to actual needs in flexible display panels It is selected, is not specifically limited herein.
Optionally, 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 between the first protective layer 11 and flexible display screen 13.
Optionally, as is illustrated by figs. 11 and 12, when support column 20 be arranged 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 Deformation occurs for extrusion deformation layer 12 between one protective layer 11 and flexible display screen 13, and the region without support column 20 is corresponding The first protective layer 11 can towards the side of flexible display screen 13 be recessed so that the corresponding extrusion deformation layer 12 in the region Deformation occurs, and then passes through the corresponding extrusion deformation layer 12 in the region for pressure conduction to corresponding pressure sensor 15, makes to press The pressure of the detection of force snesor 15 corresponding region.
Optionally, as shown in Figure 13 and Figure 14, Figure 13 is another sectional view in Figure 10 on the direction BB ', Tu14Wei Flexible display panels in Figure 13 bend after schematic diagram, wherein include when pressure sensor 15 is capacitive pressure When sensor, flexible display panels further include: metal conducting layer 21, metal conducting layer 21, which is located at the first protective layer 11 and squeezes, to be become Between shape layer 12.
It optionally, as shown in Figure 13 and Figure 14, can be in flexibility when pressure sensor 15 is capacitance pressure transducer, Metal conducting layer 21 is set in display panel, and the metal conducting layer 21 and the capacitance pressure transducer, form capacitor, work as flexibility When display panel is bent, deformation occurs for metal conducting layer 21 and/or the meeting of capacitance pressure transducer, 15, so that condenser type pressure The distance between force snesor 15 and the metal conducting layer 21 change, so that the metal conducting layer 21 and the condenser type The capacitor that pressure sensor 15 is formed changes, to detect the variable quantity of capacitance, then passes through the variation of capacitance Amount is to detect the current bending degree of flexible display panels, simultaneously as the corresponding capacitor in the region just meeting only bent It changes, therefore, can determine range that flexible display panels are bent according to capacitance variations occur and bend Position.It should be noted that also being sensed comprising metal conducting layer 21 and capacitive pressure when flexible display panels are bent Deformation occurs simultaneously for device 15, or only the case where deformation occurs of capacitance pressure transducer, 15, and those skilled in the art can be with It is arranged according to bending demand, the case where Figure 14 illustrates only metal conducting layer 21 deformation occurs.
It needs to illustrate explanation, when flexible display panels have touch function, i.e., can wrap in flexible display panels Touch control layer is included, blocky touch control electrode is provided in touch control layer, which can be multiplexed with capacitance pressure transducer, the touching Capacitor, after flexible display panels are bent, touch control electrode and/or metallic conduction can be formed with metal conducting layer by controlling electrode Layer can deformation occurs, so that the distance between touch control electrode and the metal conducting layer change, so that metal conducting layer The capacitor formed with touch control electrode changes, to detect the variable quantity of capacitance, then passes through the variable quantity of capacitance To detect the current bending degree of flexible display panels, and according to capacitance variations occur determine that flexible display panels are bent Range and the position that bends.
Optionally, as shown in Figure 15 and Figure 16, Figure 15 is another sectional view in Figure 10 on the direction BB ', Tu16Wei Flexible display panels in Figure 15 bend after schematic diagram, wherein include when pressure sensor 15 is capacitive pressure When 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 far from flexible display screen 13.
Optionally, corresponding with Figure 13 and Figure 14 soft about the working principle of the corresponding flexible display panels of Figure 15 and Figure 16 The working principle of property display panel is similar, and in this not go into detail.
Optionally, as shown in Figure 13 and Figure 14, when metal conducting layer 21 is located at the first protective layer 11 and is squeezed and deformed layer 12 Between when, multiple support columns 20 are between metal conducting layer 21 and flexible display screen 13.
Optionally, as shown in Figure 15 and Figure 16, when metal conducting layer 21 is located at the first protective layer 11 far from flexible display screen When 13 side, multiple support columns 20 are located between flexible display screen 13 and the first protective layer 11.
Optionally, 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 terminal IN2, first Output end Fout1 and second output terminal Fout2;Pressure sensitivity electric bridge 151 includes first resistor R1, second resistance R2,3rd resistor R3 With the 4th resistance R4;The first end of first resistor R1 is electrically connected with the first end of second resistance R2, the second end of first resistor R1 It is electrically connected with the first output end, the second end of second resistance R2 is electrically connected with second output terminal;The first end of 3rd resistor R3 with The first end of 4th resistance R4 is electrically connected, and the second end of 3rd resistor R3 is electrically connected with the first output end, and the of the 4th resistance R4 Two ends are electrically connected with second output terminal;The first end of first resistor R1 is electrically connected with first input end;The first of 3rd resistor R3 End is electrically connected with the second input terminal.
Optionally, 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 the first end of first resistor R1 is electrically connected with first input end IN1, the first end of second resistance R2 and the One input terminal IN1 electrical connection, the second end of first resistor R1 are electrically connected with the first output end Fout1, and the second of second resistance R2 End is electrically connected with second output terminal Fout2, and the first end of 3rd resistor R3 is electrically connected with the second input terminal IN2, the 4th resistance R4 First end be electrically connected with the second input terminal IN2, the second end of 3rd resistor R3 is electrically connected with the first output end Fout1, the 4th The second end of resistance R4 is electrically connected with second output terminal Fout2, wherein when display panel is not affected by ambient pressure, first resistor The ratio of R1 and 3rd resistor R3 are equal to the ratio of second resistance R2 and the 4th resistance R4, when display panel is by ambient pressure When, deformation occurs for touch-control display panel, then be arranged in R1, R2, R3 and R4 on the display panel can deformation occurs, lead to it Resistance value changes, this will will lead to electric bridge disequilibrium, the first output end Fout1 and second output terminal of pressure sensitivity electric bridge 151 Fout2 will export different electric signals, and then the electric signal exported based on the first output end Fout1 and second output terminal Fout2 It can determine the pressure value size of outer bound pair display panel.
Optionally, as shown in figure 17, when display panel is not affected by ambient pressure, the base of first resistor R1 and second resistance R2 Quasi- resistance is identical, and the reference resistance of 3rd resistor R3 and the 4th resistance R4 are identical.
Optionally, as shown in figure 17, under same ambient pressure, the resistance change of first resistor R1 and the 4th resistance R4 Rate is identical, and the resistance change rate of second resistance R2 and 3rd resistor R3 is identical, the resistance of first resistor R1 and second resistance R2 It is different to be worth change rate.
Optionally, as shown in figure 18, Figure 18 is another resistive pressure sensor provided in the embodiment of the present invention Structural schematic diagram, wherein press detection sensor includes: semiconductor resistor piece 152, first input end IN1, the second input terminal IN2, the first output end Fout1 and second output terminal 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 terminal, the first output end and second output terminal respectively, In, first input end and the second input terminal are electrically connected opposite two sides in four edges, the first output end and second defeated Outlet is electrically connected opposite two other side in four edges.
Optionally, 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 terminal IN2, the first output end Fout1 to be connected with second output terminal Fout2, first input end IN1 and Second input terminal IN2 is connected to two opposite sides, and the first output end Fout1 and second output terminal Fout2 are separately connected In opposite two other side.When display panel is depressed deformation occurs when, the impedance of semiconductor resistor piece 152 accordingly occurs Variation, causes its compliance voltage also correspondingly to change, so that the first output end Fout1 and second output terminal Fout2 will be defeated Different electric signal out, and then can be determined outside based on the first output end Fout1 and second output terminal Fout2 electric signal exported The pressure value size of bound pair display panel.
Optionally, when pressure sensor is resistive pressure sensor, which can be single Resistance, after flexible display panels are bent, the shape of the resistance also changes therewith, is changed by the resistance shape Size detects the bending degrees of flexible display panels.
Optionally, as shown in Fig. 2, Fig. 3, Fig. 6 and Figure 11 to Figure 16, the material for being squeezed and deformed layer 12 may include foam.
Optionally, since foam is easily bent, and the shape that can resile after bending, therefore, as Fig. 2, Shown in Fig. 3, Fig. 6 and Figure 11 to Figure 16, when extrusion deformation layer 12 is made using foam, bent in flexible display panels When, being squeezed and deformed layer 12 will not be smaller to flexible display panels generation reaction force, or the reaction force generated, substantially will not The power generated when having an impact, and flexible display panels can be bent when bending to flexible display panels accurately passes Pass pressure sensor;After flexible display panels resile shape, it is squeezed and deformed layer 12 and also follows the shape that resiles, it will not be right Flexible display panels resile shape when have an impact, to guarantee that flexible display panels can be free folding and to resile Shape.
It should be noted that being squeezed and deformed layer can also be made of other materials, the selection principle of material is to bend When can deformation occurs, and the shape that can resile is not susceptible to deformation in the case where not stressing, and it is specific to be squeezed and deformed layer Which kind of it is not specifically limited herein using material.
Optionally, it as shown in Fig. 2, Fig. 3, Fig. 6 and Figure 11 to Figure 16, on the direction vertical with flexible display screen 13, squeezes The thickness of compressive strain layer 12 can be 1mm-3mm.
Specifically, hanging down when being squeezed and deformed layer 12 with flexible display screen 13 as shown in Fig. 2, Fig. 3, Fig. 6 and Figure 11 to Figure 16 When thinner thickness on straight direction, when deformation occurs for flexible display panels, the deformation quantity for being squeezed and deformed layer 12 is smaller, so that Be squeezed and deformed the power inaccuracy that layer 12 transmits, when be squeezed and deformed thickness of the layer 12 on the direction vertical with flexible display screen 13 compared with Bao Shi, when deformation occurs for flexible display panels, the deformation quantity for being squeezed and deformed layer 12 is larger, flexible display apparatus can be made to occur broken Damage, it is therefore desirable to thickness of the layer 12 on the direction vertical with flexible display screen 13 will be squeezed and deformed and be arranged in a suitable model In enclosing, on the direction vertical with flexible display screen 13, be squeezed and deformed layer 12 with a thickness of 1mm-3mm when, be squeezed and deformed 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 for being squeezed and deformed layer can be actually needed with foundation and be set, do not make to have herein Body limits.
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 packet Include above-mentioned flexible display panels 100.Wherein, no longer superfluous in detail herein about the concrete operating principle of flexible display panels 100 It states.
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 computer (Tablet Computer), mobile phone, MP3 player, MP4 player etc..
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.

Claims (15)

1. a kind of flexible display panels, which is characterized in that the flexible display panels include:
First protective layer;
It is squeezed and deformed layer, the extrusion deformation layer is located on first protective layer;
Flexible display screen, the flexible display screen are located at the extrusion deformation side of the layer far from first protective layer;
Second protective layer, second protective layer are located at side of the flexible display screen far from first protective layer;
Pressure sensor, the pressure sensor is between second protective layer and the extrusion deformation layer;
When the flexible display panels are bent, the corresponding extrusion deformation thickness degree in bending region is reduced;
The flexible display panels further include: multiple support columns;The support column is column separate;
After the flexible display panels are bent, in the region bent, the region for being provided with support column is corresponding Deformation occurs for extrusion deformation layer between first protective layer and the flexible display screen, without the region of support column Corresponding first protective layer can be recessed towards the side of the flexible display screen.
2. flexible display panels as described in claim 1, which is characterized in that the flexible display screen includes first flexible substrate And second flexible substrate, the first flexible substrate are located at the flexible display screen close to the side for being squeezed and deformed layer, institute It states second flexible substrate and is located at the first flexible substrate close to the side for being squeezed and deformed layer;
The pressure sensor is between the first flexible substrate and the second flexible substrate.
3. flexible display panels as described in claim 1, which is characterized in that the pressure sensor is located at the Flexible Displays Shield the side far from first protective layer.
4. flexible display panels as claimed in claim 3, which is characterized in that the flexible display screen includes multiple luminous zones Domain, orthographic projection of the pressure sensor on the flexible display screen are not overlapped with the multiple light emitting region.
5. flexible display panels as described in claim 1, which is characterized in that the flexible display panels include that at least one is curved Folding area domain, the pressure sensor are in array distribution in the bending region.
6. flexible display panels as described in claim 1, which is characterized in that the flexible display panels include a bending Axis, the pressure sensor are successively arranged along the vertical direction with the bending axis.
7. flexible display panels as described in claim 1, which is characterized in that the pressure sensor includes that capacitive pressure passes Sensor or resistive pressure sensor.
8. flexible display panels as claimed in claim 7, which is characterized in that include when the pressure sensor is the electricity When resistance pressure transducer, the multiple support column is between first protective layer and the flexible display screen.
9. flexible display panels as claimed in claim 7, which is characterized in that include when the pressure sensor is the electricity When appearance formula pressure sensor, the flexible display panels further include:
Metal conducting layer, the metal conducting layer is between first protective layer and the extrusion deformation layer, alternatively, described Metal conducting layer is located at the side of first protective layer far from the flexible display screen.
10. flexible display panels as claimed in claim 9, which is characterized in that
When the metal conducting layer is between first protective layer and the extrusion deformation 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 far from the flexible display screen, the multiple support Column is between the flexible display screen and first protective layer.
11. flexible display panels as claimed in claim 7, which is characterized in that the resistive pressure sensor includes:
Pressure sensitivity electric bridge, first input end, the second input terminal, the first output end and second output terminal;
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 the second output terminal;
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 the second output terminal;
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 terminal.
12. flexible display panels as claimed in claim 7, which is characterized in that the resistive pressure sensor includes:
Semiconductor resistor piece, first input end, the second input terminal, the first output end and second output terminal;
The semiconductor resistor piece is quadrilateral structure, wherein the four edges of the semiconductor resistor piece are respectively with described first Input terminal, second input terminal, first output end and second output terminal electrical connection, wherein first input End and second input terminal are electrically connected opposite two sides in the four edges, first output end and described the Two output ends are electrically connected opposite two other side in the four edges.
13. flexible display panels as described in claim 1, which is characterized in that the material for being squeezed and deformed layer includes foam.
14. flexible display panels as described in claim 1, which is characterized in that in the direction vertical with the flexible display screen On, it is described be squeezed and deformed layer with a thickness of 1mm-3mm.
15. a kind of flexible display apparatus, which is characterized in that including the flexibility as described in above-mentioned any one of claims 1 to 14 Display panel.
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