CN107067979A - Flexible display device, manufacturing method thereof and electronic equipment - Google Patents
Flexible display device, manufacturing method thereof and electronic equipment Download PDFInfo
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- CN107067979A CN107067979A CN201710134929.7A CN201710134929A CN107067979A CN 107067979 A CN107067979 A CN 107067979A CN 201710134929 A CN201710134929 A CN 201710134929A CN 107067979 A CN107067979 A CN 107067979A
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- flexible display
- buffer film
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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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Abstract
The embodiment of the invention discloses a flexible display device, a manufacturing method thereof and electronic equipment. The flexible display device includes: a flexible display panel having a first side surface displaying an image and a second side surface opposite to the first side surface; the buffer film is at least formed on the second side surface of the flexible display panel and provided with a second buffer area and a first buffer area surrounding the second buffer area, wherein a plurality of hollow structures are arranged in the buffer film of the first buffer area, and when the flexible display panel is in a planar state, the cross section area of each hollow structure along the second direction parallel to the flexible display panel is gradually increased to a preset area and then gradually reduced in the first direction perpendicular to the flexible display panel. In the embodiment of the invention, the buffer film can prevent the flexible display panel from collapsing or twisting, limit the bending curvature of the panel, improve the impact resistance and the shock absorption capability of the panel and realize the moisture-proof function.
Description
Technical field
The present embodiments relate to field of flexible display, more particularly to a kind of flexible display apparatus and its manufacture method, with
And electronic equipment.
Background technology
Flexible display is made of the deformable flexible display device based on flexible material, and flexible display is future
One of technological trend, can realize any curling and folding of the display devices such as smart mobile phone, flat board.But for Flexible Displays
, generally there is problems with screen：When flexible display screen trails, because flexible display screen is softer, in fact it could happen that in the middle of screen
Part stay, screen surfaces out-of-flatness and screen distortion etc. phenomenon；The ability of shock resistance and the absorption vibrations of flexible display screen is not
It is enough；When flexible display screen produces flexural deformation, it is possible that overbending phenomenon causes display screen internal components to damage.On
State problem and very big influence is generated to the Consumer's Experience and service life of flexible display, should as flexible display industrialization
With problem urgently to be resolved hurrily.
The content of the invention
The embodiment of the present invention provides a kind of flexible display apparatus and its manufacture method and electronic equipment, existing to solve
Phenomenon and the shock resistances such as staying easily occurs in flexible display screen, out-of-flatness, distortion and absorb the ability of vibrations, overbending
The problems such as.
In a first aspect, the embodiments of the invention provide a kind of flexible display apparatus, the flexible display apparatus includes：
Flexible display panels, the flexible display panels have display image the first side surface and with first side table
The second relative side surface of face；
At least one layer of buffer film, the buffer film is at least formed on the second side surface of the flexible display panels, institute
Stating buffer film has second buffering area domain and the first buffering area domain around the second buffering area domain, wherein, described first delays
Rush in the buffer film in region and be provided with multiple hollow structures, when the flexible display panels be in flat state when, perpendicular to
On the first direction of the flexible display panels, the second direction of the edge of the hollow structure parallel to the flexible display panels
Cross-sectional area gradually increase to after preset area and be gradually reduced again.
Second aspect, the embodiment of the present invention additionally provides a kind of electronic equipment, and the electronic equipment includes as described above
Flexible display apparatus.
The third aspect, the embodiment of the present invention additionally provides a kind of manufacture method of flexible display apparatus, the manufacture method bag
Include：
At least two buffer layers are provided, the buffer layer has second buffering area domain and around the second buffering area
The first buffering area domain in domain, multiple grooves are formed in the first buffering area domain；
Buffer layer described in one, which is fitted on another buffer layer, makes the groove of two buffer layers one by one
Correspondence is overlapping, forms the buffer film with multiple hollow structures；
There is provided a flexible display panels, the flexible display panels have the first side surface of display image and with described
The second relative side surface of one side surface, the buffer film is attached to the second side surface of the flexible display panels, described
Buffer film at least covers the second side surface of the flexible display panels；
Wherein, when the flexible display panels are in flat state, perpendicular to the first of the flexible display panels
On direction, the edge of the hollow structure is gradually increased to parallel to the cross-sectional area of the second direction of the flexible display panels
It is gradually reduced again after preset area.
Flexible display apparatus provided in an embodiment of the present invention, is formed with least on the second side surface of flexible display panels
Multiple hollow structures are provided with one layer of buffer film, the buffer film in first buffering area domain, when flexible display panels are in plane
During state, in a first direction, the cross-sectional area in a second direction of hollow structure is gradually increased to after preset area again gradually
Reduce.Flexible display apparatus provided in an embodiment of the present invention can avoid flexible display panels appearance screen center section from staying, shield
The problems such as surface irregularity and screen distortion；Buffer film can also limit the curved of flexible display panels as an overall film layer
Curvature, increases the bending resistance of flexible display panels, prevents overbending phenomenon；There is the slow of hollow structure simultaneously
Cushioning effect can be realized, absorb impulsive force and vibrations by rushing film, improved the anti-impact force of flexible display panels and absorbed shock energy
Power；And, buffer film wraps up the second side surface of flexible display panels, then buffer film can play shielding and stop outside water oxygen
Effect, prevents outside water oxygen from entering flexible display panels from the second side surface of flexible display panels, realizes moisture-proof function.
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 do one simply to introduce, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
A kind of schematic diagram for flexible display apparatus that Fig. 1 provides for prior art；
A kind of schematic diagram for supporting construction for flexible display screen that Fig. 2A provides for prior art；
Fig. 2 B are sectional views of the Fig. 2A along A-A'；
Fig. 3 A are a kind of schematic diagrames of flexible display apparatus provided in an embodiment of the present invention；
Fig. 3 B are a kind of feasible implementations of Fig. 3 A along B-B' sectional view；
Fig. 3 C are another the feasible implementation of Fig. 3 A along B-B' sectional view；
Fig. 4 A are change schematic diagram of the existing flexible display screen before and after impact endurance test shock；
Fig. 4 B are change schematic diagram of the flexible display apparatus without hollow structure before and after impact endurance test shock；
Fig. 4 C are change schematic diagram of the flexible display apparatus with hollow structure before and after impact endurance test shock；
Fig. 5 is the signal of the flexible display apparatus barrier outside water oxygen provided in an embodiment of the present invention with hollow structure
Figure；
Fig. 6 A are the schematic diagrames of another flexible display apparatus provided in an embodiment of the present invention；
Fig. 6 B are sectional views of Fig. 6 A along C-C'；
Fig. 7 A are the schematic diagrames of another flexible display apparatus provided in an embodiment of the present invention；
Fig. 7 B are sectional views of Fig. 7 A along D-D'；
Fig. 8 is the schematic diagram of another flexible display apparatus provided in an embodiment of the present invention；
Fig. 9 A~Fig. 9 E are the schematic diagrames of a variety of achievable modes of flexible display apparatus provided in an embodiment of the present invention；
Figure 10 is the flow chart of the preparation method for the flexible display apparatus that another embodiment of the present invention is provided；
Figure 11 A~Figure 11 C be another embodiment of the present invention provide flexible display apparatus preparation technology in each step
Schematic diagram.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, hereinafter with reference to attached in the embodiment of the present invention
Figure, technical scheme is clearly and completely described by embodiment, it is clear that described embodiment is the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
Fig. 1 show a kind of flexible display apparatus of prior art offer, and the flexible display apparatus is Scroll, specifically
, the flexible display apparatus include flexible display screen and the crimping device for supporting flexible display screen, flexible display screen 10 from
Pull out and withdraw in the opening 20 of flexible display apparatus.A kind of support for flexible display screen that Fig. 2A provides for prior art
Structure, Fig. 2 B are sectional views of the Fig. 2A along A-A', and the supporting construction 30 is arranged on the non-display area of flexible display screen 40, the branch
Support structure 30 includes multiple up-narrow and down-wide boss 31, and flexible display screen 40 can be made to have beaming limit in bending.
However, for existing flexible display screen, generally existing when flexible display screen trails, due to flexible display screen
It is softer, in fact it could happen that screen center section stay, screen surfaces out-of-flatness and screen distortion etc. phenomenon；The anti-impact of flexible display screen
The problems such as ability shaken is inadequate is hit and absorbed, the Consumer's Experience and service life of flexible display has been had a strong impact on.
Referring next to Fig. 3 A, 3B and 3C.As shown in Figure 3A, it is a kind of Flexible Displays dress provided in an embodiment of the present invention
The schematic diagram put, Fig. 3 B are a kind of feasible implementations of Fig. 3 A along B-B' sectional view, and Fig. 3 C are Fig. 3 A cuing open along B-B'
The feasible implementation of another of view.The flexible display apparatus that the embodiment of the present application is provided specifically includes following structure：It is soft
Property display panel 110, flexible display panels 110 have the first side surface 111 of display image and relative with the first side surface 111
The second side surface；At least one layer of buffer film 120, second side surface of the buffer film 120 at least formed at flexible display panels 110
On, buffer film 120 has second buffering area domain 122 and the first buffering area domain 121 around second buffering area domain 122, wherein, the
Multiple hollow structures 123 are provided with the buffer film 120 of one buffer area 121, when flexible display panels 110 are in flat state
When, on the first direction perpendicular to flexible display panels 110, the edge of hollow structure 123 is parallel to flexible display panels 110
The cross-sectional area of second direction is gradually increased to after preset area and is gradually reduced again.
Flexible display panels 110 described in the present embodiment are any one existing Flexible Displays based on flexible material manufacture
Flexible display panels such as AMOLED flexible display panels, are not carried out concrete restriction by panel in the present invention.Fig. 3 A are shown
Flexible display apparatus in, optional including one layer of buffer film 120, optional buffer film 120 is only arranged at flexible display panels 110
Second side surface (the second side surface directly contacts with buffer film 120 and covered by buffer film 120, not shown mark).
As shown in Figure 3A, the flexible display panels 110 of flexible display apparatus have the He of the first side surface 111 of display image
Second side surface relative with the first side surface 111, light sends and shown from the first side surface 111 of flexible display panels 110
Diagram picture.It will be understood by those skilled in the art that flexible display panels can also be double-side in other alternative embodiments
Pattern, i.e. light sent from the first side surface of flexible display panels and display image with the time from the second of flexible display panels
Sent and display image on side surface, concrete restriction is not carried out to the light-emitting mode of flexible display panels in the present invention.
As shown in Figure 3A, the buffer film 120 of flexible display apparatus is formed in the second side surface of flexible display panels 110
On, buffer film 120 directly contacts with the second side surface of flexible display panels 110 and flexible display panels 110 is completely covered
Second side surface, therefore buffer film 120 can overally support flexible display panels 110.When flexible display panels 110 are in plane
During state, buffer film 120 can improve the rigidity of flexible display panels 110, and then avoid flexible display panels 110 from occurring in screen
Between partly stay, screen surfaces out-of-flatness and screen distortion the problems such as.When flexible display panels 110 are bent, buffer film 120 is made
For an overall film layer, the bending curvature of flexible display panels 110 can be limited, increases the counter-bending of flexible display panels 110
Ability, prevents overbending phenomenon from causing the internal components of flexible display panels 110 to damage.
As shown in Figure 3 B, buffer film 120 has second buffering area domain 122 and delayed around the first of second buffering area domain 122
Rush in region 121, the buffer film 120 in first buffering area domain 121 and be provided with multiple hollow structures 123, the i.e. outside of buffer film 120
Surface is complete film layer, and inside has at least one hollow structure 123.Obviously, the position of hollow structure 123, size and number
Related to the size of buffer film 120, relevant design personnel can be according to the hollow knot of dimensional parameters designed, designed of buffer film in product
The position of structure, size and number, in the present invention without concrete restriction.
It should be noted that optional multiple hollow structures are distributed in first buffering area in the way of uniformly or non-uniformly arranging
In the buffer film in domain.Multiple hollow structures 123 optional in the present embodiment are distributed in first buffering area in the way of uniformly arranging
In the buffer film 120 in domain 121, uniformly arrangement can realize that bending curvature is uniform to hollow structure 123.
As shown in Figure 3 B, when flexible display panels 110 are in flat state, in a first direction, hollow structure 123
Cross-sectional area in a second direction is gradually increased to after preset area and is gradually reduced again, and the area based on hollow structure 123 is special
Levy, optional hollow structure 123 is pyramid (octahedra or hexahedron) as shown in Figure 3 B, the line of the drift angle up and down of pyramid with
First direction is parallel.Specifically, by taking in a second direction three cross sections A1, A2, A3 of pyramid shown in Fig. 3 B as an example, it is transversal
Face A1 is in a first direction close to the upper drift angle of pyramid and cross section A1 area is S1, and cross section A2 is upper in a first direction
It is S2 in the middle part of pyramid and cross section A2 area, cross section A3 is in a first direction close to the lower drift angle and horizontal stroke of pyramid
The area of section A 3 is S3, and wherein the preset area of the pyramid is cross section A2 area S2.Obvious S1<S2 and S2
>S3, the cross-sectional area in a second direction of the pyramid is gradually increased to S1 by 0 and is gradually increased to S2 again, then by S2 gradually
It is decreased to S3 and is gradually decrease to 0 again, i.e., the cross-sectional area in a second direction of pyramid is ascending again in a first direction
To small, the cross-sectional area in a second direction that the structure of pyramid meets hollow structure 123 is gradually increased to after preset area
The feature being gradually reduced again.When hollow structure 123 is pyramid, the cross sectional shape in the first direction of hollow structure 123 is
Rhombus.
For the feature of the hollow structure of clear explanation buffer film of the present invention, another vertical view is also provided in the present embodiment
As shown in Figure 3A and the flexible display apparatus of sectional view as shown in Figure 3 C, the flexible display apparatus shows figure with the flexibility shown in Fig. 3 B
The difference of showing device is that the hollow structure 123 of flexible display apparatus shown in Fig. 3 C is spheroid, the top and bottom of spheroid
Line it is parallel with first direction.Specifically, with a second direction five cross section A1 of spheroid shown in Fig. 3 C, A2, A3,
Exemplified by A4, A5, cross section A1 is in a first direction S1 close to the top of spheroid and cross section A1 area, and cross section A3 exists
Area on first direction positioned at the middle part of spheroid and cross section A3 is S3, and cross section A5 is in a first direction close to spheroid
Bottom and cross section A5 area is S5, cross section A2 is located between cross section A1 and A3 and the A2 of cross section in a first direction
Area be S2, cross section A4 in a first direction be located between cross section A5 and A3 and cross section A4 area be S4, wherein
The preset area of the spheroid is cross section A3 area S3.Obvious S1<S2<S3 and S3>S4>S5, the spheroid
Cross-sectional area in a second direction is gradually increased to S1 by 0 and is gradually increased to S2 again to be gradually increased to S3 again, then by S3 gradually
It is decreased to S4 and is gradually decrease to S5 again to be gradually decrease to 0 again, i.e. the cross section in a second direction of spheroid in a first direction
Area is ascending to arrive small again, and the cross-sectional area in a second direction that the structure of spheroid meets hollow structure 123 gradually increases
It is big to the feature being gradually reduced again after preset area.When hollow structure 123 is spheroid, hollow structure 123 along first party
To cross sectional shape for ellipse.
It will be understood by those skilled in the art that the size and preset area of hollow structure are limited to the size of buffer film, phase
Closing designer can be according to the position of the dimensional parameters designed, designed hollow structure of buffer film, preset area, size in product
And quantity, therefore can also be changed according to the preset area of the different hollow structures of product design, sky is misaligned in the present invention
The preset area of structure carries out concrete restriction；In the present invention planform of hollow structure include but is not limited to above-mentioned pyramid and
Spheroid, any one cross-sectional area in a second direction gradually increases to the structure being gradually reduced again after preset area and fallen
Enter the scope of the hollow structure of the present invention, such as spheroid, hexagonal prism.
The buffer film 120 with hollow structure 123 is arranged on the second side surface of flexible display panels 110 in the present embodiment
On can also realize buffering, shock resistance and vibration function.At this with the existing flexible display screen with supporting construction, do not have
The flexible display apparatus of hollow structure and the change of flexible display apparatus respectively before and after impact endurance test shock with hollow structure,
Illustrate excellent buffering, shock resistance and the shock effect of the buffer film 120 with hollow structure 123 in the present embodiment.
Next enter with reference to the resistance impact endurance test shock performance of Fig. 4 A-4C flexible display apparatus provided the embodiment of the present application
Row is illustrated.It is change schematic diagram of the existing flexible display screen 40 before and after impact endurance test shock as shown in Figure 4 A, it is clear that existing soft
Any change does not occur before and after impact endurance test shock for the supporting construction 30 set on property display screen 40, and its height remains X1, because
This supporting construction 30 can only play a supporting role, it is impossible to play cushioning effect, can not also absorb flexible display screen 110 by
The impact endurance test shock arrived, then existing flexible display screen 110 be easily damaged when by impact endurance test shock.
It is change schematic diagram of the flexible display apparatus without hollow structure before and after impact endurance test shock as shown in Figure 4 B.When
When flexible display panels 50 are not by impact and vibrations, the thicknesses of layers of buffer film 60 is H1.When flexible display panels 50 are impacted
During with vibrations, the external force such as buffer film 60 also can be impacted and shake is acted on, the damping characteristics based on padded coaming, buffer film 60
I.e. its thicknesses of layers change of compressive deformation can occur in a first direction and turn to H2 and H2<H1, buffer film 60 has pooling feature.When
After external force disappears, the damping characteristics of buffer film 60 make its thicknesses of layers revert to H1.Therefore buffer film 60 can realize that buffering is made
With, and then improve the anti-impact force of flexible display panels 50 and absorb vibration resistance.But buffer film 60 is compact film, deformation
When its thickness H2 be only slightly less than H1, therefore the buffering effect of buffer film 60 is slightly better than prior art.
It is change schematic diagram of the flexible display apparatus with hollow structure before and after impact endurance test shock as shown in Figure 4 C.When soft
When property display panel 110 is not by impact and vibrations, the thicknesses of layers of buffer film 120 be H1, the height of hollow structure 123 be G1 and
Width is W1.When flexible display panels 110 are by impact and vibrations, the outer masterpiece such as buffer film 120 also can be impacted and be shaken
With material buffer characteristic based on buffer film and the hollow structure 123 being provided with, buffer film 120 occur in a first direction
Compressive deformation is that the change of its thicknesses of layers turns to H3 and H3<H2<H1, the hollow structure 123 of simultaneous buffering film 120 is acted on by external force
It is that its height change is G2 and G2 that compressive deformation can occur in a first direction<G1, based on buffer film 120 and hollow structure 123
Also simultaneously tensile deformation can occur for compressive deformation in a first direction, the hollow structure 123 of buffer film 120 in a second direction
I.e. its change width is W2 and W2>W1；And the edge based on hollow structure 123 is parallel to the second direction of flexible display panels 110
Cross-sectional area it is ascending arrive small again, can produce phase interaction between its arbitrary neighborhood side wall during 123 deformation of hollow structure
Internal force reaches the effect of resistance external force so as to play a supporting role, therefore buffer film 120 will not be caused to be damaged, and shows
The deformation of right buffer film 120 and hollow structure 123 is the process for absorbing impact endurance test shock, thus can be prevented effectively from flexible display panels
110 are damaged by impact endurance test shock.After external force disappears, the interaction produced between the arbitrary neighborhood side wall of hollow structure 123
Internal force can make the position that it is returned to before deformation from the position after deformation, the i.e. thicknesses of layers of buffer film 120 be H1, hollow knot
The height of structure 123 is G1 and width is W1.Therefore the buffer film 120 with hollow structure 123 can realize cushioning effect, absorption
Impulsive force and vibrations, and then improve the anti-impact force of flexible display panels 110 and absorb vibration resistance, the buffer film 120 it is slow
Punching, flexible display apparatus of the effect better than Fig. 4 A and Fig. 4 B offers for absorbing impulsive force and vibrations.
Further, since buffer film 120 wraps up the second side surface of flexible display panels 110, therefore buffer film 120 is being played
While buffering, absorption impulsive force and vibrating effect, additionally it is possible to extra to play shielding and stop that outside water oxygen is acted on, outside is prevented
Water oxygen enters flexible display panels 110 from the second side surface of flexible display panels 110, realizes moisture-proof function.Such as Fig. 5 institutes
Show, when outside has water oxygen impurity, the shielding of buffer film 120 and barrier effect can be by the barriers of most of water oxygen impurity slow
Rush outside film 120；A small amount of water oxygen impurity can enter buffer film 120, when a portion water oxygen impurity is moved in buffer film 120
It can be dissolved in buffer film 120, during another part water oxygen impurity can incorporate when moving in the hollow structure 123 of buffer film 120
In the air of hollow structure 123, remaining considerably less water oxygen impurity may move to the second side table of flexible display panels 110
Face.Obviously, the buffer film 120 with hollow structure 123 is while playing buffering, absorbing impulsive force and vibrating effect, moreover it is possible to
The effect of effectively barrier water oxygen impurity is enough played, the water oxygen greatly reduced into the second side surface of flexible display panels 110 is miscellaneous
Matter.
The flexible display apparatus that the present embodiment is provided, at least one layer is formed with the second side surface of flexible display panels
Multiple hollow structures are provided with buffer film, the buffer film in first buffering area domain, when flexible display panels are in flat state,
In a first direction, the cross-sectional area in a second direction of hollow structure is gradually increased to after preset area is gradually reduced again.
The flexible display apparatus that the present embodiment is provided, buffer film can improve the rigidity of flexible display panels, it is to avoid flexible display panels
Occur screen center section stay, screen surfaces out-of-flatness and screen distortion the problems such as；Buffer film also can as an overall film layer
The bending curvature of flexible display panels is enough limited, increases the bending resistance of flexible display panels, overbending is prevented and shows
As；Cushioning effect can be realized in buffer film with hollow structure, impulsive force and vibrations are absorbed, flexible display panels are improved
Anti-impact force and absorption vibration resistance；And, buffer film wraps up the second side surface of flexible display panels, then buffer film can rise
To shielding and the outside water oxygen effect of stop, prevent outside water oxygen from entering Flexible Displays face from the second side surface of flexible display panels
Plate, realizes moisture-proof function.The flexible display apparatus that the present embodiment is provided, service life length, Consumer's Experience are good.
As shown in Figure 6A, the schematic diagram of another flexible display apparatus provided for one embodiment of the invention, Fig. 6 B are
Sectional views of Fig. 6 A along C-C', the reference of the flexible display apparatus continues to use above-mentioned reference.The flexible display apparatus with
The difference of any one above-mentioned flexible display apparatus is that the buffer film 120 in second buffering area domain 122 is located at flexible display panels
110 the second side surface, the buffer film 120 in first buffering area domain 121 surrounds flexible display panels 110 and directly contacts flexible aobvious
Show the edge side wall of panel 110.The flexible display apparatus includes at least one layer of buffer film 120, and Flexible Displays are only illustrated herein
Device includes the situation of one layer of buffer film 120.Wherein, there is hollow structure 123 in the buffer film 120 in first buffering area domain 121,
Do not have hollow structure in the buffer film 120 in second buffering area domain 122.
In the flexible display apparatus, the buffer film 120 in second buffering area domain 122 is located at the second of flexible display panels 110
Side surface, the buffer film 120 in second buffering area domain 122 can improve the rigidity of flexible display panels 110, it is to avoid Flexible Displays face
Plate 110 occur screen center section stay, screen surfaces out-of-flatness and screen distortion the problems such as；The buffer film in second buffering area domain 122
120 overall covering flexible display panels 110, therefore buffer film 120 can also limit the bending curvature of flexible display panels 110,
Increase the bending resistance of flexible display panels 110, prevent overbending phenomenon.
In the flexible display apparatus, the buffer film 120 in first buffering area domain 121 surrounds flexible display panels 110 and direct
Contacting has hollow structure 123 in the edge side wall of flexible display panels 110, the buffer film 120 in first buffering area domain 121, then
Buffer film 120 can realize excellent buffering, absorb impulsive force and the effect of vibrations, effectively improve flexible display panels 110
Anti-impact force and absorption vibration resistance；And, buffer film 120 can also protect flexible display panels 110 the second side surface and
Its side wall, prevents the second side surface and the edge sidewall damage of flexible display panels 110.
In the flexible display apparatus, the second side surface of the parcel flexible display panels 110 of buffer film 120 and its edge side
Wall, the buffer film 120 in second buffering area domain 122 is while playing buffering, absorbing impulsive force and vibrating effect, additionally it is possible to extra
Play shielding and stop outside water oxygen effect, prevent outside water oxygen from entering flexible from the second side surface of flexible display panels 110
Display panel 110, realizes moisture-proof function.The buffer film 120 in first buffering area domain 121 play buffering, absorb impulsive force and
While vibrating effect, additionally it is possible to extra to play shielding and stop outside water oxygen effect, prevent outside water oxygen from Flexible Displays face
The edge side wall of plate 110 enters flexible display panels 110, realizes moisture-proof function.The buffer film 120 of the flexible display apparatus is big
Big to reduce the water oxygen impurity into flexible display panels 110, it obstructs water oxygen effect and is better than any of the above-described flexible display apparatus.
As shown in Figure 7 A, the schematic diagram of another flexible display apparatus provided for one embodiment of the invention, Fig. 7 B are
Sectional views of Fig. 7 A along D-D', the reference of the flexible display apparatus continues to use above-mentioned reference.The flexible display apparatus with
The difference of any one above-mentioned flexible display apparatus is that buffer film 120 is only arranged at the second side table of flexible display panels 110
The thickness of the buffer film 120 in face and first buffering area domain 121 is more than the thickness of the buffer film 120 in second buffering area domain 122, that is, delays
It is frame region thickness and the thin structure in intermediate region to rush film 120.
In the flexible display apparatus, buffer film 120 can improve the rigidity of flexible display panels 110, it is to avoid Flexible Displays
Panel 110 occur screen center section stay, screen surfaces out-of-flatness and screen distortion the problems such as；Buffer film 120 can also limit soft
Property display panel 110 bending curvature, increase flexible display panels 110 bending resistance, prevent overbending phenomenon；
Buffer film 120 with hollow structure 123 can also realize cushioning effect, absorb impulsive force and vibrations, improve Flexible Displays face
The anti-impact force of plate 110 and absorption vibration resistance；And, buffer film 120 at least wraps up the second side table of flexible display panels 110
Face, additionally it is possible to play shielding and stop outside water oxygen effect, greatly reduce the water oxygen impurity into flexible display panels 110, it is real
Moisture-proof function is showed.
In the flexible display apparatus, the thickness of the buffer film 120 in first buffering area domain 121 is more than second buffering area domain 122
Buffer film 120 thickness.If providing one first buffer film, its thickness is homogeneous and buffering film thickness phase with first buffering area domain
Together；There is provided one second buffer film, its thickness is homogeneous and buffering film thickness of with second buffering area domain is identical, then the first buffer film
Bending curvature is less than the bending curvature of the second buffer film.It follows that in the flexible display apparatus, first buffering area domain 121
The bending curvature of the limitation flexible display apparatus of buffer film 120 is smaller, prevents its bending curvature is excessive from causing overbending phenomenon.
It should be noted that flexible display apparatus includes at least one layer of buffer film, optional one layer of buffer film in the present invention
Thickness be 0.1mm~0.2mm, the number of plies of optional buffer film is 1~3 layer, and thus buffer film is on the basis for realizing pooling feature
On do not interfere with the bending properties of flexible display panels also.In the flexible display apparatus of other alternative embodiments, it is optional including
The multilayer buffer film being cascading, in the present invention without concrete restriction.
It will be understood by those skilled in the art that in other alternative embodiments, buffer film is additionally formed in Flexible Displays
Second side surface of panel, meanwhile, buffer film is also formed in the non-display area of the first side surface of flexible display panels, shows
So, on the basis of flexible display panels display image is not influenceed, the present invention does not limit the film layer structure of buffer film.
Exemplary, on the basis of any one above-mentioned flexible display apparatus, the volume of optional multiple hollow structures is total
With 1/2nd of the volume of the buffer film less than or equal to first buffering area domain.Buffer film has stronger anti-impact force and suction
Vibration resistance is received, if the volume summation of multiple hollow structures exceedes 1/2nd of the buffering membrane volume in first buffering area domain,
Hollow structure is easily stayed.Specifically when flexible display panels are impacted or are shaken, buffer film is due to hollow area
Excessive possible buffer capacity is poor, occurs hollow structure and stays, so that cushioning effect can not be played.
Exemplary, on the basis of any one above-mentioned flexible display apparatus, optional second buffering area domain as shown in Figure 8
Buffer film in be provided with multiple hollow structures, the volume summation of the plurality of hollow structure is less than or equal to second buffering area domain
/ 2nd of the volume of buffer film, herein by taking flexible display apparatus shown in Fig. 3 A as an example, Fig. 8 is Fig. 3 A along the another of B-B'
Sectional view.Hollow structure can be set in the first buffering area domain and second buffering area domain of buffer film, thus, it is possible to improve buffering
The anti-impact force of film and absorption vibration resistance.It is provided with the buffer film in optional second buffering area domain multiple regularly arranged hollow
Structure, if hollow structure irregular alignment, may cause the cushioning effect and bending curvature of buffer film uneven, but the present invention is not
As limit.
It will be understood by those skilled in the art that the size of hollow structure in the buffer film in second buffering area domain, arrangement side
Formula, shape etc. can be identical or different with the hollow structure in the buffer film in first buffering area domain, and related practitioner can root
Relevant parameter and second buffering area domain according to the hollow structure voluntarily set needed for production in the buffer film in first buffering area domain
Buffer film in hollow structure relevant parameter, in the present invention without concrete restriction.
It is exemplary, on the basis of any one above-mentioned flexible display apparatus, optional multiple hollow structures along first
The cross sectional shape in direction includes at least one of rhombus, regular pentagon, regular hexagon, ellipse and circle, in hollow structure
Any one angle be fillet.Any one angle in hollow structure is fillet, and fillet can reduce stress concentration, is improved
Buffer film shock resistance and vibration resistance.Fig. 9 A~Fig. 9 E are that a variety of of flexible display apparatus provided in an embodiment of the present invention can be achieved
The schematic diagram of mode, specifically, Fig. 9 A~Fig. 9 E show the flexible display apparatus of the hollow structure with different cross section shape,
Corresponding hollow structure can be pyramid, five side bodies, hexahedron, spheroid and circle etc., and hollow structure can improve flexibility
The impact resistance of display panel, strengthens the bending resistance of flexible display panels.It will be understood by those skilled in the art that any
A kind of cross-sectional area is ascending to arrive the protection domain that small stereochemical structure each falls within the hollow structure of the present invention again, herein not
Repeat and limit again.
Exemplary, on the basis of any one above-mentioned flexible display apparatus, the composition material of optional buffer film is included
Any one or more in metal, plastics, resin and rubber.The buffer film ductility of metal material formation is good, easily into
Film；The buffer film good bending property of plastics, resin or elastomeric material formation, cost is low.It will be understood by those skilled in the art that
The composition material of buffer film includes but is not limited to above material, and there is the elastomeric material of pooling feature to each fall within this hair for any one
Bright protection domain, will not be repeated here.It should be noted that the film layer not only flexible feature, energy of above-mentioned material formation
Pooling feature is enough played, and the film layer of above-mentioned material formation is comparatively dense, therefore can also effectively shield and stop outer
Portion's water oxygen, plays moisture-proof function.
Exemplary, on the basis of any one above-mentioned flexible display apparatus, the composition material of optional buffer film is included
Any one or more in copper, aluminium, steel, alloy and polyethylene terephthalate.The metals such as copper, aluminium, steel, alloy it is hard
Degree and cost are low, it is adaptable to be made as buffer film.Polyethylene terephthalate has excellent physical and mechanical properties, for a long time
Temperature in use is up to 120 DEG C, and electrical insulating property is excellent, and rub resistance and dimensional stability are all fine, it is adaptable to be made as buffer film.
It will be understood by those skilled in the art that the composition material of buffer film includes but is not limited to above material, any one has buffering
The elastomeric material of function each falls within protection scope of the present invention, will not be repeated here.
Exemplary, on the basis of above-mentioned technical proposal, the composition material of optional buffer film also includes anti-static liquid, then
Buffer film possesses electrostatic-proof function, can play electrostatic protection effect, prevent exterior static from importing flexible display panels and then damage
The circuit devcie of bad flexible display panels.Or, optional flexible display apparatus also includes：Formed in buffer film away from flexible aobvious
Show the antistatic backing on a side surface of panel, electrostatic protection effect can be played, prevent exterior static from importing Flexible Displays face
Plate and then the circuit devcie for damaging flexible display panels.
Another embodiment of the present invention also provides a kind of manufacture method of flexible display apparatus, and the flexible display apparatus is upper
State any one flexible display apparatus.The manufacture method of flexible display apparatus is carried out with reference to Figure 10 and Figure 11 A~Figure 11 C detailed
Explanation.The manufacture method that the present embodiment is provided includes：
Step 210, at least two buffer layers 310 of offer, buffer layer 310 have second buffering area domain 312 and surrounded
The first buffering area domain 311 in second buffering area domain 312, forms multiple grooves 313 in first buffering area domain 311.Such as Figure 11 A institutes
Show, illustrated herein so that groove 313 is triangular pyramid as an example.
The cross-sectional area parallel with flexible display panels of hollow structure be it is ascending arrive small transition again, therefore in manufacture
In, at least two identical buffer layers 310 can be formed, form multiple recessed using etching technics on buffer layer 310
Groove 313, optional multiple grooves 313 are evenly distributed in the buffer film 310 in first buffering area domain 311, optional buffer layer 310
Composition material is identical with the buffering membrane material described in above-described embodiment.It will be understood by those skilled in the art that other optional
Multiple grooves can also be formed in the buffer film in second buffering area domain simultaneously in embodiment, in the present invention not to buffer layer
Quantity, technique etc. carry out concrete restriction.
Step 220, a buffer layer 310 is fitted on another buffer layer 310 makes the groove of two buffer layers 310
313 correspond overlapping, buffer film 320 of the formation with multiple hollow structures 321.As shown in Figure 11 B.
As described above, two buffer layers 310 fit together, the groove 313 of specific two buffer layers 310 is one by one
Correspondence is overlapping, then two grooves 313 directly contacted form a hollow structure 321, two buffer layers directly contacted
310 form buffer film 320.Optional use adhesive glue fits together two buffer layers 310.
Step 230, one flexible display panels 330 of offer, flexible display panels 330 have the first side surface of display image
331 and second side surface relative with the first side surface, buffer film 320 is attached to the second side table of flexible display panels 330
Face, buffer film 320 at least covers the second side surface of flexible display panels 330；Wherein, put down when flexible display panels 330 are in
During surface state, on the first direction perpendicular to flexible display panels 330, the edge of hollow structure 321 is parallel to Flexible Displays face
The cross-sectional area of the second direction of plate 330 is gradually increased to after preset area and is gradually reduced again.As shown in Figure 11 C.
It will be understood by those skilled in the art that buffer film plays pooling feature, it is impossible to which the display to flexible display panels is produced
Influence, therefore buffer film is attached to second side surface relative with the first side surface of display image of flexible display panels；
Buffer film can attach Flexible Displays face while the second side surface of flexible display panels is attached in other alternative embodiments
The side wall of plate；Buffer film can also be pasted while the second side surface of flexible display panels is attached in other alternative embodiments
The side wall of attached flexible display panels, and attach the non-display area of the first side surface of flexible display panels.
The embodiment of the present invention also provides a kind of electronic equipment, and it is aobvious that the electronic equipment includes any one flexibility as described above
Showing device, for example, fold smart mobile phone, wearable intelligent watch, intelligent glasses, tablet personal computer, television set, display, notes
Any product or part with flexible display screen such as this computer, DPF, navigator, car-mounted display.The Flexible Displays are filled
Center as the buffer film described in as above any embodiment.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art it is various it is obvious change,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (12)
1. a kind of flexible display apparatus, it is characterised in that including：
Flexible display panels, the flexible display panels have display image the first side surface and with first side surface phase
To the second side surface；
At least one layer of buffer film, the buffer film is described slow at least formed on the second side surface of the flexible display panels
Rushing film has second buffering area domain and the first buffering area domain around the second buffering area domain, wherein, the first buffering area
Multiple hollow structures are provided with the buffer film in domain, when the flexible display panels are in flat state, perpendicular to described
On the first direction of flexible display panels, the horizontal stroke of the edge of the hollow structure parallel to the second direction of the flexible display panels
Area of section is gradually increased to after preset area and is gradually reduced again.
2. flexible display apparatus according to claim 1, it is characterised in that the buffer film is only arranged at described flexible aobvious
Show the second side surface of panel.
3. flexible display apparatus according to claim 1, it is characterised in that the buffer film in the second buffering area domain is located at
Second side surface of the flexible display panels, the buffer film in the first buffering area domain surrounds the flexible display panels and straight
The edge side wall of the contact flexible display panels.
4. flexible display apparatus according to claim 1, it is characterised in that the volume summation of the multiple hollow structure is small
In or equal to the first buffering area domain buffer film volume 1/2nd.
5. flexible display apparatus according to claim 1, it is characterised in that set in the buffer film in the second buffering area domain
Multiple hollow structures are equipped with, the volume summation of the plurality of hollow structure is less than or equal to the buffer film in the second buffering area domain
/ 2nd of volume.
6. the flexible display apparatus according to claim any one of 1-5, it is characterised in that the edge of the multiple hollow structure
The cross sectional shape of the first direction includes at least one of rhombus, regular pentagon, regular hexagon, ellipse and circle, institute
Any one angle stated in hollow structure is fillet.
7. flexible display apparatus according to claim 1, it is characterised in that the composition material of the buffer film includes gold
Any one or more in category, plastics, resin and rubber.
8. flexible display apparatus according to claim 7, it is characterised in that the composition material of the buffer film comprising copper,
Any one or more in aluminium, steel, alloy and polyethylene terephthalate.
9. flexible display apparatus according to claim 7, it is characterised in that the composition material of the buffer film is also comprising anti-
Electrostatic liquid.
10. flexible display apparatus according to claim 1, it is characterised in that also include：Form the back of the body in the buffer film
From the antistatic backing on a side surface of the flexible display panels.
11. a kind of electronic equipment, it is characterised in that the electronic equipment includes the flexibility as described in claim any one of 1-10
Display device.
12. a kind of manufacture method of flexible display apparatus, it is characterised in that the manufacture method includes：
At least two buffer layers are provided, the buffer layer has second buffering area domain and around the second buffering area domain
First buffering area domain, multiple grooves are formed in the first buffering area domain；
Buffer layer described in one, which is fitted in, corresponds the groove of two buffer layers on another buffer layer
It is overlapping, form the buffer film with multiple hollow structures；
One flexible display panels are provided, the flexible display panels have display image the first side surface and with first side
The second relative side surface of surface, the buffer film is attached to the second side surface of the flexible display panels, the buffering
Film at least covers the second side surface of the flexible display panels；
Wherein, when the flexible display panels are in flat state, in the first direction perpendicular to the flexible display panels
On, the edge of the hollow structure gradually increases to default parallel to the cross-sectional area of the second direction of the flexible display panels
It is gradually reduced again after area.
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| CN201710134929.7A CN107067979B (en) | 2017-03-08 | 2017-03-08 | Flexible display device, manufacturing method thereof and electronic equipment |
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