CN109360832A - A kind of flexible display panels and flexible display apparatus - Google Patents
A kind of flexible display panels and flexible display apparatus Download PDFInfo
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- CN109360832A CN109360832A CN201811459642.2A CN201811459642A CN109360832A CN 109360832 A CN109360832 A CN 109360832A CN 201811459642 A CN201811459642 A CN 201811459642A CN 109360832 A CN109360832 A CN 109360832A
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- display panels
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- 239000011241 protective layer Substances 0.000 claims abstract description 149
- 239000000758 substrate Substances 0.000 claims abstract description 109
- 238000005452 bending Methods 0.000 claims description 25
- 238000000059 patterning Methods 0.000 claims description 22
- 239000010410 layer Substances 0.000 claims description 7
- 230000003447 ipsilateral effect Effects 0.000 claims description 4
- 230000001771 impaired effect Effects 0.000 abstract description 18
- 239000012141 concentrate Substances 0.000 abstract description 12
- 230000002159 abnormal effect Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
- H01L27/1244—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits for preventing breakage, peeling or short circuiting
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a kind of flexible display panels and flexible display apparatus, flexible display panels include the underlay substrate for being divided into bent area and non-bent area, and the protective layer of non-bent area underlay substrate at least side is arranged in；Protective layer corresponds to bent area setting, and the surface of protective layer adjacent substrate substrate side forms pattern structure, and at least partly pattern structure covers the cabling that corresponding bent area is arranged.According to the technical solution of the present invention, the cabling stress for effectively reducing corresponding bent area setting concentrates the probability of impaired fracture, thereby reduces the probability that flexible display panels have display abnormal problem.
Description
Technical field
The present embodiments relate to field of display technology more particularly to a kind of flexible display panels and flexible display apparatus.
Background technique
Flexible display panels are bending deformed display panels, and display mode includes ORGANIC ELECTROLUMINESCENCE DISPLAYS, electricity
Multiple types, the deformable bent flexible display apparatus such as swimming display and liquid crystal display have good portability, are convenient for
It uses in any place, subversive usage experience can be brought to user.
There are transmitting display signal therefor and the cabling of display control signal, Flexible Displays faces for the bent area of flexible display panels
In the process of bending, the cabling stress of bent area concentrates the probability of impaired fracture higher to plate, and then leads to flexible display panels
There is a problem of display exception.
Summary of the invention
The present invention provides a kind of flexible display panels and flexible display apparatus, effectively reduces walking for corresponding bent area setting
Line stress concentrates the probability of impaired fracture, thereby reduces the probability that flexible display panels have display abnormal problem.
In a first aspect, the embodiment of the invention provides a kind of flexible display panels, including it is divided into bent area and non-bent area
Underlay substrate, and the protective layer of the non-bent area underlay substrate at least side is set；
The protective layer corresponds to the bent area setting, and the protective layer is formed adjacent to the surface of the underlay substrate side
Pattern structure, the cabling of at least partly described corresponding bent area setting of pattern structure covering.
Further, the cabling of the extending direction of at least partly described pattern structure and the corresponding bent area
Extending direction it is identical.
Further, the cabling of the bent area and at least partly described protective layer are located at the non-bent area lining
Substrate it is ipsilateral.
Further, the underlay substrate is bent to the side of the light direction away from the flexible display panels, described
The cabling of bent area and at least partly described protective layer are located at the non-bent area underlay substrate towards the light side out
To side.
Further, the protective layer, which includes at least, is arranged in the non-bent area underlay substrate away from the bent area
First protective layer of overbending direction side, it is preferable that first protective layer includes the multilayered structure being stacked.
Further, along the direction far from the underlay substrate, first protective layer successively includes that the first patterning is protected
Sheath and the first planarization protective layer, the thickness of first protective layer are less than or equal to 150 μm, the first patterning protective layer
Thickness be less than it is described first planarization protective layer thickness, it is preferable that the thickness of first protective layer be more than or equal to 100 μ
M is less than or equal to 130 μm.
Further, the protective layer further includes that the non-bent area underlay substrate is arranged in towards the curved of the bent area
Roll over the second protective layer of direction side.
Further, first protective layer is respectively formed the first patterning knot adjacent to the surface of the underlay substrate side
Structure, second protective layer are respectively formed the second pattern structure adjacent to the surface of the underlay substrate side, at least partly described
First pattern structure and the cabling of the corresponding bent area setting of at least partly described second pattern structure covering.
Further, the thickness of second protective layer is less than or equal to the thickness of first protective layer.
Further, planimetric area of second protective layer on the underlay substrate is less than first protection
Planimetric area of the layer on the underlay substrate.
Second aspect, the embodiment of the invention also provides a kind of flexible display apparatus, the Flexible Displays including first aspect
Panel.
The embodiment of the invention provides a kind of flexible display panels and flexible display apparatus, flexible display panels include being divided into
The underlay substrate of bent area and non-bent area and the protective layer that non-bent area underlay substrate at least side is set, protective layer pair
Bent area is answered to be arranged, the surface of protective layer adjacent substrate substrate side forms pattern structure, and at least partly pattern structure covers
The cabling of corresponding bent area setting is covered, pattern structure is provided with the release for being conducive to promote bent area stress, effectively reduces
The cabling stress for corresponding to bent area setting concentrates the probability of impaired fracture, and it is different in the presence of showing to thereby reduce flexible display panels
The probability of Chang Wenti.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is a kind of the schematic diagram of the section structure of flexible display panels provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the section structure of another flexible display panels provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of the section structure of another flexible display panels provided in an embodiment of the present invention；
Fig. 4 provides a kind of overlooking structure diagram of the cabling of corresponding bent area setting for the embodiment of the present invention；
Fig. 5 is the overlooking structure diagram of pattern structure in a kind of protective layer provided in an embodiment of the present invention；
The schematic diagram of the section structure of Fig. 6 another flexible display panels provided in an embodiment of the present invention；
Fig. 7 is the schematic diagram of the section structure of another flexible display panels provided in an embodiment of the present invention；
Fig. 8 is a kind of structural schematic diagram of flexible display apparatus provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.It is same or similar in this specification
Drawing reference numeral represent the same or similar structure, element or process.It should be noted that in the absence of conflict, this Shen
Please in embodiment and embodiment in feature can be combined with each other.
The embodiment of the invention provides a kind of flexible display panels, flexible display panels include being divided into bent area and non-bending
The underlay substrate in area, and the protective layer of non-bent area underlay substrate at least side is set, protective layer corresponds to bent area setting,
The surface of protective layer adjacent substrate substrate side forms pattern structure, and at least partly pattern structure covers corresponding bent area and sets
The cabling set.
There are transmitting display signal therefor and the cabling of display control signal, Flexible Displays faces for the bent area of flexible display panels
In the process of bending, the cabling stress of bent area concentrates the probability of impaired fracture higher to plate, and then leads to flexible display panels
There is a problem of display exception.
Flexible display panels provided in an embodiment of the present invention include be divided into bent area and non-bent area underlay substrate and
The protective layer of non-bent area underlay substrate at least side is set, and protective layer corresponds to bent area setting, protective layer adjacent substrate base
The surface of plate side forms pattern structure, and at least partly pattern structure covers the cabling that corresponding bent area is arranged, patterning
Structure is provided with the release for being conducive to promote bent area stress, and the cabling stress for effectively reducing corresponding bent area setting is concentrated
The probability of impaired fracture thereby reduces the probability that flexible display panels have display abnormal problem.
It is core of the invention thought above, following will be combined with the drawings in the embodiments of the present invention, to the embodiment of the present invention
In technical solution be clearly and completely described.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Under the premise of making creative work, every other embodiment obtained be shall fall within the protection scope of the present invention.
Fig. 1 is a kind of the schematic diagram of the section structure of flexible display panels provided in an embodiment of the present invention, and Fig. 2 is that the present invention is real
The schematic diagram of the section structure of another flexible display panels of example offer is applied, Fig. 3 is that another kind provided in an embodiment of the present invention is soft
The schematic diagram of the section structure of property display panel.In conjunction with Fig. 1 to Fig. 3, flexible display panels include being divided into bent area A1 and non-bending
The underlay substrate 1 of area A2, and the protective layer 2 of non-bent area A2 underlay substrate 1 at least side is set, Fig. 1 is illustratively set
Setting flexible display panels includes the protective layer 2 that non-1 top of bent area A2 underlay substrate is arranged in, and flexibility is illustratively arranged in Fig. 2
Display panel includes the protective layer 2 being arranged in below non-bent area A2 underlay substrate 1, and Flexible Displays face is illustratively arranged in Fig. 3
Plate includes the protective layer 2 that non-1 top of bent area A2 underlay substrate and lower section is arranged in.The corresponding bent area A1 setting of protective layer 2,
The surface of 2 adjacent substrate substrate of protective layer, 1 side forms pattern structure, and at least partly pattern structure covers corresponding bent area
The cabling of A1 setting.
Flexible display panels generally comprise flexible substrate, and the material for constituting flexible substrate may include PI (polyimides),
Flexible display panels further include the pixel-driving circuit and luminescence unit in flexible substrate, and luminescence unit is in pixel driver electricity
The brightness of itself is adjusted under the control on road, flexible display panels show different pictures.Pixel-driving circuit is correspondingly arranged sometimes
The cablings such as clock signal wire, scan signal line, data signal line and power signal line.Flexible display panels, can be in bending
The corresponding region of flexible display panels is bent since one end of bent area, during bending, corresponding bent area
The cabling stress of setting concentrates the probability of impaired fracture higher, also increases flexible display panels and there is display abnormal problem
Probability.
In conjunction with Fig. 1 to Fig. 3, setting flexible display panels of the embodiment of the present invention include being divided into bent area A1 and non-bent area A2
Underlay substrate 1, and the protective layer 2 of non-bent area A2 underlay substrate 1 at least side is set, the corresponding bent area of protective layer 2
A1 setting, the surface of 2 adjacent substrate substrate of protective layer, 1 side form pattern structure, at least partly pattern structure covering pair
The cabling for answering bent area A1 to be arranged, pattern structure is provided with the release for being conducive to promote bent area A1 stress in protective layer 2, has
The cabling stress that effect reduces corresponding bent area A1 setting concentrates the probability of impaired fracture, thereby reduces flexible display panels
In the presence of the probability of display abnormal problem.
Fig. 4 provides a kind of overlooking structure diagram of the cabling of corresponding bent area setting for the embodiment of the present invention, and Fig. 5 is this
The overlooking structure diagram of pattern structure in a kind of protective layer that inventive embodiments provide.In conjunction with Fig. 1 to Fig. 5, can be set
At least partly the extending direction of pattern structure 20 is identical as the extending direction of cabling 3 of corresponding bent area A1 in protective layer 2,
This enables stress suffered by the cabling 3 of corresponding bent area A1 setting uniformly to discharge along the extending direction of pattern structure 20,
While being conducive to promote bent area A1 stress release, is conducive to the uniformity for promoting bent area A1 stress release, further drops
3 stress of cabling of low corresponding bent area A1 setting concentrate the probability of impaired fracture and flexible display panels exist show it is different
The probability of Chang Wenti.
In conjunction with Fig. 1 to Fig. 5, protective layer 2 can also include upper and lower two pattern structure 201, i.e. protective layer 2 can also include
Bent area A1 is corresponded to along the respectively arranged pattern structure 201 of both ends a and b of overbending direction XX ', pattern structure 201 prolongs
Direction is stretched perpendicular to the overbending direction XX ' of bent area A1.Specifically, when flexible display panels are bent, bent area A1 is along bending side
It is easy to produce both ends from biggish deformation to XX ' a and b, so that the two regional stresses concentrate more serious, the two corresponding regions
The probability of the impaired broken string of the cabling 3 of setting is higher, and setting protective layer can also include corresponding bent area A1 along overbending direction XX's '
The respectively arranged pattern structure 201 of both ends a and b, the bending side for extending perpendicularly to bent area A1 of pattern structure 201
To XX ', the release of the two regional stresses is improved, reduces the general of the impaired broken string of cabling 3 of corresponding the two regions setting
Rate.
It is alternatively possible to the cabling 3 of bent area A1 be arranged and at least partly protective layer 2 is located at non-bent area A2 substrate base
Plate 1 it is ipsilateral.Illustratively, the cabling 3 that bent area A1 can be set is located at the top of non-bent area A2 underlay substrate 1, then may be used
It include the protective layer 2 that non-1 top of bent area A2 underlay substrate is set so that flexible display panels to be arranged as shown in Figure 1；It can also be with
The cabling 3 that bent area A1 is arranged is located at the lower section of non-bent area A2 underlay substrate 1, then Flexible Displays can be arranged as shown in Figure 2
Panel includes the protective layer 2 being arranged in below non-bent area A2 underlay substrate 1；Also the cabling 3 that bent area A1 can be set both wrapped
The cabling 3 for being located at non-1 top of bent area A2 underlay substrate is included, and includes the cabling positioned at non-1 lower section of bent area A2 underlay substrate
3, then it includes the guarantor being arranged in above and below non-bent area A2 underlay substrate 1 that flexible display panels can be arranged as shown in Figure 3
Sheath 2.In this way, setting bent area A1 cabling 3 and at least partly protective layer 2 is located at the same of non-bent area A2 underlay substrate 1
Side, relative to bent area A1 cabling 3 and at least partly protective layer 2 is ipsilateral not positioned at non-bent area A2 underlay substrate 1, more
The release for being conducive to stress suffered by the cabling 3 of bent area A1 further decreases the 3 stress collection of cabling of corresponding bent area A1 setting
In be damaged fracture probability and flexible display panels exist display abnormal problem probability.
It is bent it is alternatively possible to which underlay substrate is arranged to the side of the light direction away from flexible display panels, bent area
Cabling and at least partly protective layer is located at non-side of the bent area underlay substrate towards light direction.As shown in Figure 1, can be with
The light direction that flexible display panels are arranged is B1, i.e. flexible display panels shine upwards, then underlay substrate 1 can be set and support or oppose
The side of light direction B1 from flexible display panels is bent, i.e., underlay substrate 1 is bent from X to X ', and non-bending lining can be set
The top of side of the substrate 1 towards light direction B1, i.e., non-bent area A2 underlay substrate 1 is provided with the cabling 3 of bent area A1
And protective layer 2.As shown in Fig. 2, the light direction that flexible display panels can be set is B2, i.e. flexible display panels to issuing
Light then can be set underlay substrate 1 and bend to the side of the light direction B2 away from flexible display panels, i.e., underlay substrate 1 is by X
It is bent to X ', non-bending side of the underlay substrate 1 towards light direction B2 can be set, i.e., non-bent area A2 underlay substrate 1
Lower section is provided with the cabling 3 and protective layer 2 of bent area A1.Specifically, bent area A1 need to be bent to when underlay substrate 1 is bent
The back side of underlay substrate 1 can then set to avoid the cabling 3 of bent area A1 and the light emission rate of the influence display panel of protective layer 2
It sets underlay substrate 1 to bend to the side of the light direction away from flexible display panels, the cabling 3 of bent area A1 and at least partly
Protective layer 2 is located at non-1 side towards light direction of bent area A2 underlay substrate.
The schematic diagram of the section structure of Fig. 6 another flexible display panels provided in an embodiment of the present invention.As shown in fig. 6, can
Be arranged protective layer include at least be arranged in non-bent area A2 underlay substrate 1 away from bent area A1 overbending direction side first
Protective layer 21, it is preferable that the first protective layer 21 includes the multilayered structure that is stacked, Fig. 6 be illustratively arranged underlay substrate 1 to
Lower bending, protective layer include the first protective layer 21 that non-1 top of bending underlay substrate and corresponding bent area A1 setting is arranged in.
As shown in fig. 6, can be set along the direction far from underlay substrate 1, the first protective layer 21 successively includes the first pattern
Change protective layer 211 and the first planarization protective layer 212, the thickness of the first protective layer 21 is less than or equal to 150 μm, and the first patterning is protected
Thickness of the thickness of sheath 211 less than the first planarization protective layer 212.Preferably, the thickness of the first protective layer 21 is more than or equal to
100 μm, it is less than or equal to 130 μm.
Specifically, it is arranged along the direction far from underlay substrate 1, the first protective layer 21 successively includes the first patterning protective layer
211 and first planarize protective layer 212, the smooth outer surface of its bent area A1 is same after bending flexible display panels
When, avoiding the first protective layer 21 of setting only includes that 21 surface of the first protective layer caused by the first patterning protective layer structure 211 is high
Excessive, the poor problem of the uniformity of bent area A1 stress release of low fluctuating, for the first protective layer 21 of same thickness, setting
Along the direction far from underlay substrate 1, the first protective layer 21 successively includes the first patterning protective layer 211 and the first planarization protection
Layer 212 only includes the first patterning protective layer 211 relative to the first protective layer 21 of setting, effectively reduces the first protective layer 21
The height offset on surface, improves the uniformity of bent area A1 stress release, further reduced corresponding bent area A1 setting
The probability of the impaired fracture of cabling 3.
The thickness of first patterning protective layer 211 is set less than the thickness of the first planarization protective layer 212, can effectively be kept away
Exempt to be provided with pattern structure in the excessive caused first patterning protective layer 211 of thickness of the first patterning protective layer 211
The height section offset of position and hollow out position is too big, is unfavorable for the problem of improving the uniformity of bent area A1 stress release.In addition,
The material for constituting the first patterning protective layer 211 and the first planarization protective layer 212 can be optical cement, such as UV
(Uilraviolet Rays) glue, i.e. ultraviolet cured adhesive, can form the first patterning protective layer 211 by the way of gluing
The first patterning protective layer 211 is formed if the thickness of the first patterning protective layer 211 is too small with the first planarization protective layer 212
Afterwards when gluing forms the first planarization protective layer 212, the UV glue for forming the first planarization protective layer 212 easily infiltrates into the first figure
The pattern structure in the first patterning protective layer 211 is destroyed in the hollowed out area of case protective layer 211.
Fig. 7 is the schematic diagram of the section structure of another flexible display panels provided in an embodiment of the present invention.Knot shown in Fig. 6
On the basis of the flexible display panels of structure, the protective layer in the flexible display panels of structure shown in Fig. 7 can also include that setting exists
Second protective layer 22 of non-overbending direction side of the bent area A2 underlay substrate 1 towards bent area A1, Fig. 7 are equally illustratively set
It sets underlay substrate 1 to bend downward, protective layer further includes being arranged in below non-bending underlay substrate 1 and corresponding to bent area A1 to be arranged
Second protective layer 22.
As shown in fig. 7, the surface that 21 adjacent substrate substrate of the first protective layer, 1 side can be set is respectively formed the first patterning
The surface of structure, 22 adjacent substrate substrate of the second protective layer, 1 side is respectively formed the second pattern structure, at least partly the first pattern
Change structure and at least partly the second pattern structure covers the cabling 3 of corresponding bent area A1 setting.Illustratively, it can be set
The cabling 3 of bent area A1 had not only included the cabling 3 positioned at non-1 top of bent area A2 underlay substrate, but also including being located at non-bent area A2
The cabling 3 of 1 lower section of underlay substrate, the surface of setting 21 adjacent substrate substrate of the first protective layer, 1 side are respectively formed the first patterning
The surface of structure, 22 adjacent substrate substrate of the second protective layer, 1 side is respectively formed the second pattern structure, at least partly the first pattern
Change structure and at least partly the second pattern structure covers the cabling 3 of corresponding bent area A1 setting, further releases correspondence
Stress suffered by the cabling 3 of bent area A1 setting, 3 stress of cabling for reducing corresponding bent area A1 setting concentrate impaired fracture
Probability and flexible display panels exist display abnormal problem probability.
It is alternatively possible to which the extension side of at least partly the first pattern structure and at least partly the second pattern structure is arranged
To identical as the extending direction of the cabling of corresponding bent area.In conjunction with Fig. 4, Fig. 5 and Fig. 7, it is arranged positioned at non-to the property of can be exemplified
Cabling 3 above and below bent area A2 underlay substrate 1 is in trend as shown in Figure 4, the first pattern structure and the second figure
Case structure is respectively formed patterned shape as shown in Figure 5, stress suffered by the cabling 3 that corresponding bent area A1 is arranged
It is uniformly discharged along the extending direction of the first pattern structure and the extending direction of the second pattern structure, is conducive to promote bending
While area's A1 stress release, is conducive to the uniformity for promoting bent area A1 stress release, further reduced corresponding bent area
3 stress of cabling of A1 setting concentrates the impaired probability being broken and flexible display panels in the presence of the probability of display abnormal problem.
As shown in fig. 7, planimetric area of 22 protective layer of the second protective layer on underlay substrate 1 can be set less than
Planimetric area of one protective layer, 21 protective layer on underlay substrate 1.Specifically, illustratively setting underlay substrate 1 is downward
Bending, since the overbending direction one that non-bent area A2 underlay substrate 1 deviates from bent area A1 is arranged in 21 protective layer of the first protective layer
Non- overbending direction side of the bent area A2 underlay substrate 1 towards bent area A1 is arranged in side, 22 protective layer of the second protective layer, setting
Planimetric area of second protective layer, 22 protective layer on underlay substrate 1 is less than 21 protective layer of the first protective layer in underlay substrate
Planimetric area on 1 advantageously reduces the bending difficulty of bent area A1, that is, is conducive to flexible display panels and realizes bending.
As shown in fig. 7, the thickness that 22 protective layer of the second protective layer can be set is less than or equal to 21 protective layer of the first protective layer
Thickness.Specifically, during bending to flexible display panels, the outer layer Tensile of bending part, internal layer is by crowded
There is the transition zone that neither Tensile is also not under compression in pressure, referred to as bending neutral line on the section of bending part, corresponding tension
The probability for stretching the impaired fracture of cabling 3 of position setting is higher than the probability for corresponding to the impaired fracture of cabling 3 for the position setting that is squeezed.If
The thickness for setting 22 protective layer of the second protective layer is less than or equal to the thickness of 21 protective layer of the first protective layer, enables to bending neutral line
Closer to the position of bent area A1 Tensile, be conducive to releasing for 3 stress of cabling for promoting the Tensile of corresponding bent area A1 setting
It puts, reduces the probability that these 3 stress of cabling concentrate impaired fracture.
It should be noted that the embodiment of the present invention, which shows attached drawing only, illustratively indicates the size of each film layer and structure,
The actual size of each film layer and structure in flexible display panels is not represented.
Flexible display panels provided in an embodiment of the present invention include be divided into bent area and non-bent area underlay substrate and
The protective layer of non-bent area underlay substrate at least side is set, and protective layer corresponds to bent area setting, protective layer adjacent substrate base
The surface of plate side forms pattern structure, and at least partly pattern structure covers the cabling that corresponding bent area is arranged, patterning
Structure is provided with the release for being conducive to promote bent area stress, and the cabling stress for effectively reducing corresponding bent area setting is concentrated
The probability of impaired fracture thereby reduces the probability that flexible display panels have display abnormal problem.
A kind of flexible display apparatus that the embodiment of the present invention also provides, Fig. 8 are a kind of flexibility provided in an embodiment of the present invention
The structural schematic diagram of display device.As shown in figure 8, flexible display apparatus 91 includes the flexible display panels in above-described embodiment
92, therefore flexible display apparatus provided in an embodiment of the present invention 91 also has beneficial effect described in above-described embodiment, this
Place repeats no more.Illustratively, flexible display apparatus can be mobile phone terminal, tablet computer, display device for mounting on vehicle mobile phone or can
The electronic equipments such as wearable device, the embodiment of the present invention are not construed as limiting the concrete form of flexible display apparatus.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments here, be able to carry out for a person skilled in the art it is various it is apparent variation, again
Adjustment and substitution are without departing from protection scope of the present invention.Therefore, although by above embodiments to the present invention carried out compared with
For detailed description, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, can be with
Including more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of flexible display panels, which is characterized in that the underlay substrate including being divided into bent area and non-bent area, and setting
Protective layer in the non-bent area underlay substrate at least side；
The protective layer corresponds to the bent area setting, and the protective layer forms pattern adjacent to the surface of the underlay substrate side
Change structure, the cabling of at least partly described corresponding bent area setting of pattern structure covering.
2. flexible display panels according to claim 1, which is characterized in that the extension of at least partly described pattern structure
Direction is identical as the extending direction of the cabling of the corresponding bent area.
3. flexible display panels according to claim 1, which is characterized in that the cabling of the bent area and at least
The part protective layer is located at the ipsilateral of the non-bent area underlay substrate.
4. flexible display panels according to claim 3, which is characterized in that the underlay substrate is to away from described flexible aobvious
Show the side bending of the light direction of panel, the cabling of the bent area and at least partly described protective layer are located at described
Non- side of the bent area underlay substrate towards the light direction.
5. flexible display panels according to claim 1, which is characterized in that the protective layer, which includes at least, to be arranged described
First protective layer of the non-bent area underlay substrate away from the overbending direction side of the bent area, it is preferable that first protection
Layer includes the multilayered structure being stacked.
6. flexible display panels according to claim 5, which is characterized in that along the direction far from the underlay substrate, institute
Stating the first protective layer successively includes the first patterning protective layer and the first planarization protective layer, and the thickness of first protective layer is small
In being equal to 150 μm, the thickness of the first patterning protective layer is less than the thickness of the first planarization protective layer, it is preferable that
The thickness of first protective layer is more than or equal to 100 μm, is less than or equal to 130 μm.
7. flexible display panels according to claim 5, which is characterized in that the protective layer further includes being arranged described non-
Second protective layer of overbending direction side of the bent area underlay substrate towards the bent area.
8. flexible display panels according to claim 7, which is characterized in that first protective layer is adjacent to the substrate base
The surface of plate side is respectively formed the first pattern structure, surface equal shape of second protective layer adjacent to the underlay substrate side
At the second pattern structure, at least partly described first pattern structure and at least partly described second pattern structure covering
The cabling of the corresponding bent area setting.
9. flexible display panels according to claim 7, which is characterized in that the thickness of second protective layer is less than or equal to
The thickness of first protective layer；Preferably, planimetric area of second protective layer on the underlay substrate is less than
Planimetric area of first protective layer on the underlay substrate.
10. a kind of flexible display apparatus, which is characterized in that including the described in any item flexible display panels of claim 1-9.
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