CN208907988U - A kind of cover board and flexible screen - Google Patents
A kind of cover board and flexible screen Download PDFInfo
- Publication number
- CN208907988U CN208907988U CN201821786765.2U CN201821786765U CN208907988U CN 208907988 U CN208907988 U CN 208907988U CN 201821786765 U CN201821786765 U CN 201821786765U CN 208907988 U CN208907988 U CN 208907988U
- Authority
- CN
- China
- Prior art keywords
- curved
- cover board
- substrate
- surface structure
- adhesive layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model provides a kind of cover board and flexible screen, and the cover board includes: substrate, and substrate has at least one curved-surface structure in the bent area of flexible screen；Overlying strata, overlying strata cover the upper surface of substrate.Cover board provided by the utility model and flexible screen are conducive to disperse bending stress when flexible screen bending, avoid the element of flexible screen because bending stress is impaired, to improve the robustness of flexible screen.
Description
Technical field
The utility model relates to field of display technology, in particular to a kind of cover board and flexible screen.
Background technique
The electronic display of bending deformation, also known as flexible display screen are had been developed at present.The reliability of flexible screen
Always restrict its widely applied main problem.Particularly, the bent area that flexible screen is bent frequent occurrence be easy to produce bright line,
The defects of concealed wire, leads to the application demand for not being able to satisfy market.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of cover board and flexible screen, can be avoided in bent area and generates
The bad defect such as bright line, concealed wire.
On the one hand, the utility model provides a kind of cover board for flexible screen, comprising: substrate, substrate is in flexible screen
There is at least one curved-surface structure in bent area；Overlying strata, overlying strata cover the upper surface of substrate.Lid according to the present utility model
Plate, has the substrate of curved-surface structure by being arranged, and the stress that can be will usually occur in curved bent area scatter.In area
In identical plane domain, curved-surface structure along the physical length physical length more extending in a straight line than planar structure that curve extends more
It is long, therefore curved-surface structure is set in bent area, stress can be dispersed in more baseplate materials.In addition, curved-surface structure
Itself has multiple inflection points, and when flexible screen is bent, stress is more likely to be distributed on this multiple inflection point, rather than picture
The substrate of pure-surface is concentrated on one point like that, to be conducive to the dispersion of stress.
A specific embodiment according to the present utility model, substrate include the ultra-thin glass that thickness is less than or equal to 300 microns
Glass.Material of the ultra-thin glass as substrate, have preferable thermal stability and chemically, good flexible, visible light it is saturating
The property crossed, the barrier property of steam and oxygen, higher surface flatness, and insulate.
A specific embodiment according to the present utility model, the bent-axis of bent area are curved at least one curved-surface structure
Crank axle is parallel.The axis of bending of curved-surface structure and the bent-axis of bent area are parallel, and the shape of curved-surface structure is fitted
The bending action of bent area is answered, the folding s tress of bent area can be along the extending direction (i.e. axis of bending direction) of curved-surface structure
It is distributed on the width of entire cover board, so that stress is fully dispersed.
A specific embodiment according to the present utility model, when the substrate includes multiple curved-surface structures, multiple curved surface knots
It is separated between structure by planar interconnecting piece.Multiple curved-surface structures are formed according to the cover board of the present embodiment, can adapt to exist
The flexible screen of multiple bent areas.In the biggish situation of area of bent area, continuous a sheet of curved-surface structure can also be divided
Solution is conducive to the stiffness for improving cover board in this way, avoids the area accounting because of curved-surface structure at the curved-surface structure of multiple small areas
It is excessive to cause flexible screen that straight and upright ability is kept to decline under normal conditions.
A specific embodiment according to the present utility model, each curved-surface structure at least one described curved-surface structure
Cross section is corrugated, triangular teeth or rectangular toothed.Undulatory curved-surface structure is conducive to dispersive stress, avoids stress collection
In on the turning point sharply turned to, be conducive to improve cover board intensity.The substrate of curved-surface structure with triangular teeth is easy
In manufacture, and it can effectively disperse bending stress.The substrate of curved-surface structure with rectangular toothed is relatively easily produced, and
Be conducive to improve the flatness of cover board.
A specific embodiment according to the present utility model, at least one described curved-surface structure is raised to the side of substrate,
Or at least one described curved-surface structure is raised to the two sides of substrate.Allow the curved-surface structure of substrate only to side protrusion, the other side
It keeps concordant with the substrate portion holding other than bent area, is conducive to the flatness for improving curved-surface structure.Particularly, when curved surface knot
Structure only only up side protrusion when, be conducive to downside be bonded with the other structures of flexible screen；When curved-surface structure is only to downside protrusion
When, be conducive to being bonded for overlying strata and substrate, and be conducive to overlying strata and keep smooth.When the curved-surface structure in cover board is to upper and lower
When the protrusion of two sides, the physical length that curved-surface structure can be made to extend along curve is longer, so as to which bending stress to be dispersed in more
Structural material in, be conducive to mention heavily stressed dispersion effect.
A specific embodiment according to the present utility model, cover board further include lower coating, the following table of lower coating covering substrate
Face.The flatness that lower coating advantageously ensures that the lower surface of substrate is set, the structure below fitting cover board is facilitated.
A specific embodiment according to the present utility model, overlying strata and lower coating are made of clear polyimides PI.
PI has good thermal stability, preferable mechanical property and chemical property.
A specific embodiment according to the present utility model, cover board further include upper adhesive layer, and overlying strata passes through upper adhesive layer
Affix to the upper surface of substrate；Alternatively, cover board further includes upper adhesive layer and lower adhesive layer, overlying strata is affixed to by upper adhesive layer
The upper surface of substrate, lower coating affix to the lower surface of substrate by lower adhesive layer.Coating and base up and down are bonded by adhesive layer
Plate is conducive to the structural intergrity for improving cover board entirety, avoids the defects of dividing, being staggered.
The material of a specific embodiment according to the present utility model, upper adhesive layer and lower adhesive layer is by transparent optical cement
OCA.OCA glue has high clarity, high light transmittance (full light transmittance > 99%), high adhesion, high durable, water resistance, resistance to height
The performances such as temperature, uvioresistant have controlled thickness, are capable of providing uniform spacing, use for a long time will not generate yellow
(xanthochromia), removing and rotten problem.
A specific embodiment according to the present utility model, the thickness of upper adhesive layer are greater than curved-surface structure to upside protrusion
Highly, the thickness of lower adhesive layer is greater than height of the curved-surface structure to downside protrusion.The thickness of adhesive layer is greater than the height of curved-surface structure
Degree is conducive to the flatness for improving cover board, and is conducive to provide buffering between substrate and upper and lower coating, avoids substrate and covers
Occur to abut and rub between layer.
On the other hand, the utility model provides a kind of flexible screen, including according to cover board described above.
The defects of inventor according to the present utility model analyzes, and why will lead to bright line, concealed wire in flexible screen bent area,
It is because stress when flexible screen is bent cannot disperse, to damage display element.Also, inventor further analyzes, whole
In a display panel structure, for array substrate (i.e. backboard), the thickness of mould group part is bigger, therefore, by adjusting
The structure of mould group part, for improving bending problem, effect is more preferable.
In view of this, the utility model devises main part of the substrate with curved-surface structure as the cover board of flexible screen
Point, bending stress is dispersed by curved-surface structure.On the one hand, in certain projected area, reality that curved-surface structure extends along curve
Length physical length more extending in a straight line than planar structure in border is long, causes curved-surface structure that can have more materials to bear bending and answer
Power.On the other hand, curved-surface structure is artificially provided with multiple inflection points or inflection point, these points can will answer gravitational attraction to come, and causes
The bending stress originally concentrated at one is dispersed on multiple inflection points, concentrates the display to flexible screen first to reduce stress
The destructiveness of part.
Detailed description of the invention
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing, in which:
Fig. 1 shows the plan view of the cover board according to an embodiment of the present invention；
Fig. 2 shows the sectional views of the line A-A interception in Fig. 1；
Fig. 3 shows the structural schematic diagram of the cover board according to an embodiment of the present invention；
Fig. 4 shows the structural schematic diagram of the cover board according to an embodiment of the present invention；
Fig. 5 shows the structural schematic diagram of the cover board according to an embodiment of the present invention；
Fig. 6 shows the structural schematic diagram of the cover board according to an embodiment of the present invention；
Fig. 7 shows the structural schematic diagram of the cover board according to an embodiment of the present invention.
Specific embodiment
In order to make those skilled in the art that the concept and thought of the utility model be more clearly understood, below in conjunction with specific
The utility model is described in detail in embodiment.It should be understood that embodiments set forth herein is all the institute that the utility model may have
There is a part of embodiment.Those skilled in the art have the ability after reading the description of the present application to following embodiments
A part or whole part makes improvements, is transformed or replaces, these are improved, transformation or replacement are also included in the requires of the utility model guarantor
In the range of shield.
Herein, term " first ", " second " and other similar words are not meant to imply any sequence, quantity and again
The property wanted, but be used only for distinguishing different elements.Herein, term " one ", "one" is with other similar words
It is not intended to mean that and only exists the things, but indicate in relation to describing only for one in the things, it is described
Things may have one or more.Herein, term "comprising", " comprising " are intended to mean that in logic with other similar words
Correlation, and the relationship that cannot be regarded as in representation space structure.For example, " A includes B " is intended to mean that logically B belongs to
A, without indicating that spatially B is located at the inside of A.In addition, term "comprising", " comprising " should be regarded with the meaning of other similar words
To be open, and misclosure.For example, " A includes B " is intended to mean that B belongs to A, but B not necessarily constitutes the whole of A, A
It is also possible that other elements such as C, D, E.
Herein, term " embodiment ", " the present embodiment ", " embodiment ", " one embodiment " are not offered as related
Description is suitable only for a specific embodiment, but indicates that these descriptions are also likely to be applicable to another or multiple implementations
In example.It will be understood by those skilled in the art that herein, any description done for some embodiment can in addition
Related description in one or more embodiments is substituted, combined or is combined in other ways, it is described substitution, combination or
It is that those skilled in the art can be readily apparent that person combines generated new embodiment in other ways, belongs to the utility model
Protection scope.
Various embodiments of the utility model provides a kind of cover board for flexible screen, the flexible screen using the cover board and has
Use the electronic equipment of the flexible screen of the cover board.In various embodiments of the utility model, electronic equipment can be mobile phone, computer,
Tablet computer, E-book reader, DTV etc..In various embodiments of the utility model, flexible screen can refer to by flexibility
Deformable flexible electronic display made of material.The type of flexible screen may include the flexibility of bent (bendable)
The flexible screen of screen, the flexible screen of foldable (foldable) and rollable (rollable).Bent flexible screen is also known as fixed
Curved screen, this display screen form curve form by fixed angle bending.Folding flexible screen can be along one or more
Broken line is folding, and countless a variety of variations can occur for use state.Rollable flexible screen can be in the table of entire display screen
Any position on face bends, and is the variation highest flexible screen of freedom degree.In various embodiments of the utility model, cover board is
The outermost protective structures of flexible display screen belong to a part of the mould group of display screen.Polarisation is usually provided with below cover board
Piece, touch panel, display panel etc..In general, the lower surface of cover board is directly contacted with the backboard of flexible screen, the upper surface of cover board with
External environment directly contacts.
Fig. 1 and Fig. 2 shows the structural schematic diagrams according to the cover board of an embodiment of the present invention.Fig. 1 is the plane of cover board
Figure, Fig. 2 is the cross-sectional view along line A-A.
It in the present embodiment, include: substrate 120 for the cover board of flexible screen 100, substrate 120 is in the bent area of flexible screen
There is at least one curved-surface structure 121 in 110；Overlying strata 130, overlying strata 130 cover the upper surface 122 of substrate 120.
According to the cover board 100 of the present embodiment, there is the substrate of curved-surface structure 121 by being arranged, can will usually occur curved
Stress in bent bent area scatter.In the identical plane domain of area, physical length that curved-surface structure extends along curve
Physical length more extending in a straight line than planar structure is longer, therefore curved-surface structure is arranged in bent area, can disperse stress
In more baseplate materials.In addition, curved-surface structure itself has multiple inflection points, when flexible screen is bent, stress is more
Tend to be distributed on this multiple inflection point, rather than concentrated on one point as the substrate of pure-surface, to be conducive to stress
Dispersion.
In the present embodiment, bent area 110 can refer to the place that flexible screen is bent frequent occurrence.In Fig. 1, bending
Area 110 is located at the middle part of cover board 100.It will be appreciated by those skilled in the art that bent area 110 may be located on the avris of cover board
Position or any other position.For fixed Curved screen, bent area 110 can refer to the position for being always maintained at curved shape.
For folding flexible display screen, bent area 110 can refer to the position where one or more broken line.For rollable
Flexible display screen, bent area 110 can refer to entire display screen.
In the present embodiment, substrate 120, which can refer to, undertakes 100 main loads of cover board, plays branch as 100 main body of cover board
The structure of support effect.The material of substrate 120 can be ultra-thin glass, PI (polyimide), PET (poly terephthalic acid second two
Ester), PMMA (polymethyl methacrylate), PU (polyurethane) etc..In the present embodiment, ultra-thin glass can be dinger thickness degree and be less than
Or the glass equal to 300 microns.In an embodiment of the utility model, ultra-thin glass can be dinger thickness degree less than or equal to 50
The glass of micron.In an embodiment of the utility model, substrate 120 is made of ultra-thin glass.Ultra-thin glass is as substrate 120
Material, have preferable thermal stability and chemically, good flexible, the resistance of visible light permeability, steam and oxygen
Every property, higher surface flatness, and insulate.
In the present embodiment, curved-surface structure 121 can refer in sectional view, have the non-planar forms such as bending, bending
Cross-section structure.
In the present embodiment, the upper surface 122 of substrate 120 can refer to substrate 120 towards that on the outside of electronic equipment
On one side.In the present embodiment, overlying strata 130 can refer to the layer structure being covered on the upper surface 122 of substrate 120.On cover
Layer 130 can be it is planar, do not bend or do not have curved-surface structure.Setting overlying strata 130 can guarantee cover board 100
Upper surface or outer surface flatness, and can be improved the performances such as the smoothness of cover board 100, intensity, scratch resistant, grease proofing, from
And protective substrate 120.In an embodiment of the utility model, overlying strata 130 is made of PI material.PI has good heat
Stability, preferable mechanical property and chemical property.Particularly, the overlying strata made of PI material can be improved the drop resistant of cover board
Performance.
Referring to Fig. 1 and Fig. 2, an embodiment according to the present utility model, the bent-axis of bent area 110 and described at least one
The axis of bending of a curved-surface structure 121 is parallel.
In the present embodiment, bent-axis can refer to the axis surrounded when bent area 110 is bent, axis of bending
It can refer to the axis that curved-surface structure 121 bends or surrounded when bending.According to the cover board of the present embodiment, curved-surface structure
Axis of bending is parallel with the bent-axis of bent area, so that the shape of curved-surface structure can adapt to the bending action of bent area, it is curved
The folding s tress of folding area can be distributed to the width of entire cover board along the extending direction (i.e. axis of bending direction) of curved-surface structure
On, so that stress is fully dispersed.
Fig. 3 shows the structural schematic diagram of the cover board 200 of an embodiment according to the present utility model.According to the present embodiment, base
When plate 220 includes multiple curved-surface structures 221, separated between the multiple curved-surface structure 221 by planar interconnecting piece 224.
In the present embodiment, a curved-surface structure 221 can refer to the portion that shape in curved surface, two sides are planar in itself
Point.Multiple curved-surface structures 221 can refer to the portion of the multiple curve forms marked off by the interconnecting piece 224 of multiple flat shapes
Point.In the present embodiment, interconnecting piece 224, which can refer to, connects the planar of the two neighboring curved-surface structure in multiple curved-surface structures
Portion, it is essentially identical in structure and form in the part other than bent area with substrate 220.
Multiple curved-surface structures are formed according to the cover board 200 of the present embodiment, can adapt to that there are the flexible screens of multiple bent areas.
In the biggish situation of area of bent area, continuous a sheet of curved-surface structure can also be resolved into the curved surface of multiple small areas
Structure is conducive to the stiffness for improving cover board in this way, avoids causing flexible screen in normality because the area accounting of curved-surface structure is excessive
It is lower to keep straight and upright ability decline.
Referring to Fig. 3, an embodiment according to the present utility model, each curved-surface structure at least one described curved-surface structure
221 cross section is corrugated.In the present embodiment, corrugated, which can refer to, is bent round and smooth waveform.With corrugated
Cross section curved-surface structure for example, see shown in Fig. 2 and Fig. 3.Using undulatory curved-surface structure, be conducive to dispersive stress, keep away
Exempt from stress to concentrate on the turning point sharply turned to, is conducive to the intensity for improving cover board.
Fig. 4 shows the structural schematic diagram of the cover board 300 according to an embodiment of the present invention.It is described according to the present embodiment
The cross section dentation triangular in shape of each curved-surface structure 321 at least one curved-surface structure.In the present embodiment, lance tooth
Shape can be the zigzag of pointed.The substrate 320 of curved-surface structure with this form is easily fabricated, and can effectively divide
Dissipate bending stress.
Fig. 5 shows the structural schematic diagram of the cover board 400 according to an embodiment of the present invention.It is described according to the present embodiment
The cross section of each curved-surface structure 421 at least one curved-surface structure is in rectangular toothed.In the present embodiment, rectangular toothed can
To refer to tooth form for rectangular or square zigzag.The substrate 420 of curved-surface structure with this form is relatively easily made
It makes, and is conducive to improve the flatness of cover board.
Return to Fig. 2, an embodiment according to the present utility model, at least one described curved-surface structure 121 is to the one of substrate 120
Side protrusion.
In the present embodiment, 121 protrusion of curved-surface structure can refer to that curved-surface structure is bent, and extend to base so that being formed
The upper vertex 125 of 120 top of plate or the lower vertex 126 for extending to 120 lower section of substrate.In the present embodiment, curved-surface structure 121 to
The side protrusion of substrate 120 can refer to that the upper vertex 125 of curved-surface structure 121 is more than the upper surface 122 of substrate 120, simultaneously
Lower vertex is less than the lower surface 123 of substrate 120, may also mean that the upper vertex 125 of curved-surface structure 121 is less than substrate 120
Upper surface 122, be more than the lower surface 123 of substrate 120 with vertex 126 at present (situation is not shown).
According to the present embodiment, allow the curved-surface structure of substrate only to side protrusion, the other side is kept and the base other than bent area
Plate part keeps concordant, is conducive to the flatness for improving curved-surface structure.Particularly, when curved-surface structure only side protrusion only up,
Be conducive to downside to be bonded with the other structures of flexible screen；When curved-surface structure only to downside protrusion when, be conducive to overlying strata and base
The fitting of plate, and be conducive to overlying strata and keep smooth.
Fig. 6 shows the structural schematic diagram of the cover board 500 according to an embodiment of the present invention.It is described according to the present embodiment
At least one curved-surface structure 521 is raised to the two sides of substrate 520.
In the present embodiment, curved-surface structure 521 can refer to the upper top of curved-surface structure 521 to the two sides of substrate 520 protrusion
Point 525 has extended upwardly beyond the upper surface 522 of substrate 520, while the lower vertex 526 of curved-surface structure 521 extends downward beyond
The lower surface 523 of substrate 520.According to the curved-surface structure in the cover board of the present embodiment to upper and lower two sides protrusion, so that curved surface knot
Structure is longer along the physical length that curve extends, and so as to which bending stress to be dispersed in more structural materials, is conducive to mention
Heavily stressed dispersion effect.
Fig. 7 shows the structural schematic diagram of the cover board 600 according to an embodiment of the present invention.In the present embodiment, cover board
600 further include lower coating 660, and lower coating 660 covers the lower surface 623 of substrate 620.In the present embodiment, lower coating 660 with it is upper
Coating is similar, is also planar, the flatness of the lower surface 623 for guaranteeing substrate 620, facilitates 600 lower section of fitting cover board
Structure (such as polaroid).In the present embodiment, lower coating can be made of PI material.PI has good thermal stability,
Preferable mechanical property and chemical property.The lower coating made of PI material can be further noted that the drop resistant performance of cover board.
Referring to Fig. 7, an embodiment according to the present utility model, cover board 600 further includes upper adhesive layer, and overlying strata 630 passes through
Upper adhesive layer 640 affixes to the upper surface of substrate 620；Alternatively, cover board further includes upper adhesive layer 640 and lower adhesive layer 650, above cover
Layer 630 affixes to the upper surface 622 of substrate 620 by upper adhesive layer 640, and lower coating 660 is affixed to by lower adhesive layer 650
The lower surface 623 of substrate 620.In the present embodiment, adhesive layer is the middle layer for connecting coating and substrate, plays bonding and makees
With.In the present embodiment, the material of upper adhesive layer 640 and lower adhesive layer 650 can be transparent optical cement OCA (optical
Clear adhesive), solid transparent optical glue SCA (solid optically clear adhesive) or optical clear
Resin OCR (optical clear resin).According to the present embodiment, coating and substrate up and down are bonded by adhesive layer, are conducive to
The structural intergrity for improving cover board entirety, avoids the defects of dividing, being staggered.
The material of an embodiment according to the present utility model, upper adhesive layer and lower adhesive layer is OCA glue.OCA glue has height
The property such as clarity, high light transmittance (full light transmittance > 99%), high adhesion, high durable, water resistance, high temperature resistant, uvioresistant
Can, there is controlled thickness, be capable of providing uniform spacing, use for a long time will not generate yellow (xanthochromia), removing and become
The problem of matter.
Referring to Fig. 7, an embodiment according to the present utility model, it is upward that the thickness of upper adhesive layer 640 is greater than curved-surface structure 621
The thickness of the height of side protrusion, the lower adhesive layer 650 is greater than height of the curved-surface structure 621 to downside protrusion.
In the present embodiment, curved-surface structure 621 can refer to the height of upside protrusion from the upper surface of substrate 620 622
To the distance between the upper vertex 625 of curved-surface structure 621.Particularly, when curved-surface structure 621 is only to downside protrusion, not to upside
When raised, the height of curved-surface structure 621 to upside protrusion is then zero.Particularly, when there are multiple curved-surface structures 621, and they
When the height to raise upward is inconsistent, at least one described curved-surface structure 621 can refer to the height of upside protrusion from substrate
620 upper surface 622 to the distance between the upper vertex 625 of highest curved-surface structure 621.In the present embodiment, curved-surface structure
621 can refer to the height of downside protrusion from the lower surface of substrate 620 623 between the lower vertex 626 of curved-surface structure 621
Distance.Particularly, when the side protrusion only up of curved-surface structure 621, when not to downside protrusion, curved-surface structure 621 is to downside protrusion
Height be then zero.Particularly, when there are multiple curved-surface structures 621, and their downwardly convex height are inconsistent, it is described extremely
A few curved-surface structure 621 can refer to the height of downside protrusion from the lower surface of substrate 620 623 to highest curved surface knot
The distance between lower vertex 626 of structure 621.
In the present embodiment, upper adhesive layer 640 and the respective thickness of lower adhesive layer 650 are greater than the corresponding of curved-surface structure 621
Highly, it can refer to greater than one fixed value (such as 5 microns), may also mean that and be greater than the height by a certain percentage.
According to the cover board of the present embodiment, the thickness of adhesive layer is greater than the height of curved-surface structure, is conducive to improve the flat of cover board
Whole degree, and be conducive to provide buffering between substrate and upper and lower coating, it avoids abutting and rubbing between substrate and coating.
Combine specific embodiment that the concept, principle and thought of the utility model is described in detail above.Art technology
Personnel should be understood that the more than these types of form given above of the embodiments of the present invention, and those skilled in the art are reading
After present specification, any possible improvement can be made to the step in above embodiment, method, apparatus, component, is replaced
It changes and equivalent form, these improvement, replacements and equivalents should be regarded as falling in the scope of the utility model.The utility model
Protection scope be only subject to claims.
Claims (12)
1. a kind of cover board for flexible screen characterized by comprising
Substrate, the substrate have at least one curved-surface structure in the bent area of the flexible screen；
Overlying strata, the overlying strata cover the upper surface of the substrate.
2. cover board according to claim 1, which is characterized in that the substrate includes that thickness is less than or equal to 300 microns
Ultra-thin glass.
3. cover board according to claim 1, which is characterized in that the bent-axis of the bent area and at least one described song
The axis of bending of face structure is parallel.
4. cover board according to claim 1, which is characterized in that the multiple when the substrate includes multiple curved-surface structures
It is separated between curved-surface structure by planar interconnecting piece.
5. cover board according to any one of claim 1 to 4, which is characterized in that at least one described curved-surface structure
The cross section of each curved-surface structure is corrugated, triangular teeth or rectangular toothed.
6. cover board according to claim 5, which is characterized in that the curved-surface structure is raised to the side of the substrate, or
Curved-surface structure described in person is raised to the two sides of the substrate.
7. cover board according to any one of claim 1 to 4, which is characterized in that further include lower coating, the lower coating covers
Cover the lower surface of the substrate.
8. cover board according to claim 7, which is characterized in that the overlying strata and the lower coating are sub- by transparent polyamides
Amine PI is made.
9. cover board according to claim 7, which is characterized in that the cover board further includes upper adhesive layer, and the overlying strata is logical
Cross the upper surface that the upper adhesive layer affixes to the substrate；
Alternatively, the cover board further includes upper adhesive layer and lower adhesive layer, the overlying strata affixes to institute by the upper adhesive layer
The upper surface of substrate is stated, the lower coating affixes to the lower surface of the substrate by the lower adhesive layer.
10. cover board according to claim 9, which is characterized in that the upper adhesive layer and the lower adhesive layer are by transparent
Optical cement OCA is constituted.
11. cover board according to claim 9, which is characterized in that the thickness of the upper adhesive layer is greater than the curved-surface structure
To the height of upside protrusion, the thickness of the lower adhesive layer is greater than height of the curved-surface structure to downside protrusion.
12. a kind of flexible screen, which is characterized in that including cover board according to any one of claim 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821786765.2U CN208907988U (en) | 2018-10-31 | 2018-10-31 | A kind of cover board and flexible screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821786765.2U CN208907988U (en) | 2018-10-31 | 2018-10-31 | A kind of cover board and flexible screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208907988U true CN208907988U (en) | 2019-05-28 |
Family
ID=66614639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821786765.2U Active CN208907988U (en) | 2018-10-31 | 2018-10-31 | A kind of cover board and flexible screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208907988U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021196909A1 (en) * | 2020-04-03 | 2021-10-07 | Oppo广东移动通信有限公司 | Electronic device, display screen assembly, and display screen cover plate |
| CN115083276A (en) * | 2022-06-22 | 2022-09-20 | 合肥维信诺科技有限公司 | Cover plate, display panel and display device |
-
2018
- 2018-10-31 CN CN201821786765.2U patent/CN208907988U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021196909A1 (en) * | 2020-04-03 | 2021-10-07 | Oppo广东移动通信有限公司 | Electronic device, display screen assembly, and display screen cover plate |
| CN113497840A (en) * | 2020-04-03 | 2021-10-12 | Oppo广东移动通信有限公司 | Electronic equipment, display screen assembly and display screen cover plate |
| CN113497840B (en) * | 2020-04-03 | 2022-10-04 | Oppo广东移动通信有限公司 | Electronic equipment, display screen assembly and display screen cover plate |
| CN115083276A (en) * | 2022-06-22 | 2022-09-20 | 合肥维信诺科技有限公司 | Cover plate, display panel and display device |
| CN115083276B (en) * | 2022-06-22 | 2023-11-07 | 合肥维信诺科技有限公司 | Cover plate, display panel and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109147573B (en) | Display device and protective cover plate | |
| US11372272B2 (en) | Display device with cover window | |
| CN209418505U (en) | A kind of flexible display apparatus | |
| CN208444535U (en) | Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus | |
| CN208907988U (en) | A kind of cover board and flexible screen | |
| CN109326220A (en) | Cover board and its manufacturing method, Flexible Displays mould group and electronic equipment | |
| KR20190082339A (en) | Flexible Display Device | |
| US20060256582A1 (en) | Prism sheet | |
| CN208622355U (en) | Display panel and display device | |
| CN208622354U (en) | Display panel and display device | |
| CN108039121B (en) | Flexible display panel and display device | |
| CN110120183A (en) | A kind of display panel and preparation method thereof, display device | |
| KR101580229B1 (en) | Optical Sheet Module | |
| CN108012010A (en) | Cover board, display module and mobile terminal | |
| CN209690889U (en) | A kind of touch module and touching display screen | |
| CN110782794B (en) | Flexible transparent LED display film | |
| CN106154368B (en) | A kind of multi-functional complex optical film | |
| CN209607739U (en) | Display module and electronic equipment | |
| CN204926762U (en) | Touch panel , display panel and display device | |
| CN111599835A (en) | Display panel and preparation method thereof | |
| CN207339954U (en) | cover board, display module and mobile terminal | |
| CN110967865A (en) | Multilayer laminated film | |
| JP2007178628A (en) | Prism sheet | |
| US20090244715A1 (en) | Prism sheet | |
| TWM280484U (en) | Anti-scraping type optics diaphragm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd.|Kunshan Guoxian photoelectric Co., Ltd Assignor: The valley (Guan) Technology Co. Ltd. Contract record no.: X2019990000155 Denomination of utility model: The invention discloses a cover plate and a flexible screen Granted publication date: 20190528 License type: Common License Record date: 20191030 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191216 Address after: No. 2 Xiangshan Avenue, Yongning Street, Zengcheng District, Guangzhou, Guangdong province (the core of Zengcheng economic and Technological Development Zone) Patentee after: Guangzhou Guoxian Technology Co., Ltd Address before: 065000 Demonstration Zone of Emerging Industries in Gu'an County, Langfang City, Hebei Province Patentee before: The valley (Guan) Technology Co. Ltd. |