CN208737340U - Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus - Google Patents
Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus Download PDFInfo
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- CN208737340U CN208737340U CN201821090165.2U CN201821090165U CN208737340U CN 208737340 U CN208737340 U CN 208737340U CN 201821090165 U CN201821090165 U CN 201821090165U CN 208737340 U CN208737340 U CN 208737340U
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- flexible
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- display screen
- cover board
- flexible display
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Abstract
The utility model provides flexible display screen cover board, Flexible Displays mould group and flexible display apparatus.The flexible display screen cover board has composite/laminate structure, and the composite/laminate structure includes at least one layer of flexible glass layer being stacked and at least one layer of organic layer.It is designed by the composite laminate of flexible glass layer and organic layer, utilize the rigidity characteristics of glass material and the flexible characteristic of organic material, it can guarantee that flexible display screen cover board is provided simultaneously with bendable folding endurance and enough hardness, and can be improved the bendable folding endurance of flexible display screen cover board.
Description
Technical field
The utility model relates to field of display screens, and in particular to flexible display screen cover board, Flexible Displays mould group and flexibility are aobvious
Showing device.
Background technique
With the development of display technology, nowadays display device application field is very extensive, therefore for shielding body items
It can require also to gradually rise.Flexible screen body has the characteristics that bent, and using the flexibility of display device, people can will display dress
It sets and is bent or folded, offer convenience to carry and use display device to people.The wearable of flexible display panels is shown
Showing device is also increasingly valued by people, and is shown important application potential in fields such as amusements, is also included in the industry
Main competitive market.
However, existing flexible screen is mostly to use flexible or rigid cover board, but the cover board hardness of flexible material is inadequate,
It cannot play a very good protection to display screen, and the bendable folding endurance of the cover board of rigid material is poor, is unfavorable for Flexible Displays
The bending of screen.
Utility model content
In view of this, the present invention provides flexible display screen cover board, Flexible Displays mould group and flexible display apparatus.
One side according to the present utility model, provides a kind of flexible display screen cover board, and the flexible display screen cover board has
Composite/laminate structure, the composite/laminate structure include that at least one layer of flexible glass layer being stacked and at least one layer are organic
Layer.
In one embodiment, the composite/laminate structure includes at least one layer of flexible glass layer being cascading and extremely
Few one layer of organic layer.
In one embodiment, the composite/laminate structure includes at least one layer of flexible glass layer being stacked and at least two
Layer organic layer, the flexible glass layer are folded between the organic layer.
In one embodiment, the flexible glass layer and the organic layer are linked together by bonding, it is preferable that institute
It states flexible glass layer and the organic layer is linked together by optical clear bonding agent, more preferably, the optical clear
Bonding agent with a thickness of 5~10 microns.
In one embodiment, the flexible glass layer and the organic layer are linked together by chimeric, it is preferable that institute
The surface contacted with the organic layer for stating flexible glass layer is formed at least one groove, and the organic layer is embedded in the groove
In.
In a further embodiment, the cross sectional shape of the groove is in rectangular, arc-shaped, inverted trapezoidal and triangle
It is one or more,
The area ratio that the formation of the opening area of the groove and the flexible glass layer has the surface of the groove is
30%~60%.
In one embodiment, the flexible glass layer be located in non-display area and the surface that is engaged with the organic layer
It is roughened processing.
In a further embodiment, the roughening treatment is bead.
In one embodiment, the hardness of the flexible glass layer is greater than or equal to 7H, and the flexible glass layer is ultra-thin glass
Glass layer, the ultra-thin glass layer with a thickness of 10~50 microns,
The organic layer with a thickness of 5~20 microns, the material of the organic layer is selected from polyimides (e.g., transparent polyamides
Imines), one of polyethylene and polymethyl methacrylate or a variety of.
Another aspect according to the present utility model provides a kind of Flexible Displays mould group, and the Flexible Displays mould group includes upper
State any flexible display screen cover board.
Another aspect according to the present utility model, provides a kind of flexible display apparatus, and the flexible display apparatus includes upper
State Flexible Displays mould group.
Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus according to the present utility model, can have simultaneously
Standby good bendable folding endurance, the transparency, ultrathin, enough intensity and strong bendable folding endurance etc..
Detailed description of the invention
Fig. 1 is the stacking between flexible glass layer and organic layer for showing the flexible display screen cover board of the utility model
The schematic diagram of mode.
Fig. 2 is the stacking between flexible glass layer and organic layer for showing the flexible display screen cover board of the utility model
Another schematic diagram of mode.
Fig. 3 is the engagement between flexible glass layer and organic layer for showing the flexible display screen cover board of the utility model
The schematic diagram of mode.
Fig. 4~Fig. 7 is between flexible glass layer and organic layer for showing the flexible display screen cover board of the utility model
Juncture another schematic diagram.
Fig. 8 is the engagement between flexible glass layer and organic layer for showing the flexible display screen cover board of the utility model
Another schematic diagram of mode.
Specific embodiment
Below in conjunction with attached drawing, the technical solution of the utility model is clearly and completely described.Obviously, described
Embodiment be only the utility model a part of the embodiment, instead of all the embodiments.Based on the reality in the utility model
Example is applied, all other embodiment that those skilled in the art obtain under that premise of not paying creative labor belongs to this reality
With novel protected range.
As shown in FIG. 1 to FIG. 8, flexible display screen cover board according to the present utility model has composite/laminate structure, this is compound
Stepped construction includes the flexible glass layer 1 and organic layer 2 being stacked.Flexible glass layer 1 with a thickness of 10~50 microns, it is organic
Layer 2 with a thickness of 5~20 microns.In this case, it can be realized the ultrathin of flexible display screen cover board.In addition, flexible glass
The hardness of glass layer 1 can be greater than or equal to 7H.In this case, it is enough hard can to guarantee that flexible display screen cover board has
Degree.
It is designed, can be guaranteed using the rigidity characteristics of glass material soft by the composite laminate of flexible glass layer and organic layer
The hardness of property display screen cover board, flexible display screen cover board can play the protective effect to display screen body under external impacts.Benefit
The bendable folding endurance of flexible display screen cover board can be improved with the flexible characteristic of organic material, so that flexible display screen is realized preferably
Bendable folding endurance, and organic material can also discharge part external force by deformation under external impacts, to reduce external force to flexibility
The impact of display screen cover board and display screen body improves the bendable folding endurance of flexible display screen cover board, while in flexible glass layer because meeting with
By powerful external force after breakage, the fragment of flexible glass layer can be adhered on organic layer, prevent being scattered and to display for fragment
Shield the damage of body.
In one embodiment, flexible glass layer 1 can be ultra-thin glass, ultra-thin glass with a thickness of 10~50 microns.It is super
Thin glass has the rigidity characteristics of glass material, and also takes into account certain bendable folding endurance.It therefore, can be using ultra-thin glass
Make have preferable bendable folding endurance and enough hardness while flexible display screen cover board ultrathin, and improves Flexible Displays
Shield the bendable folding endurance of cover board.The material of organic layer 2 can be (poly- selected from PI (polyimides) (e.g., CPI (transparent polyamide)), PE
Ethylene) and one of PMMA (polymethyl methacrylate) or a variety of.
For the overlapped way between flexible glass layer 1 and organic layer 2, situation as shown in Figure 1 can be, i.e., flexible glass
Glass layer 1 and organic layer 2 are cascading, or can be situation as shown in Figure 2, i.e., flexible glass layer 1 has been folded in
Between machine layer 1.In the present invention, " be cascading " one layer of 1 He of flexible glass layer referred to the setting that is stacked on one another
One layer of organic layer 2 is repeatedly stacked as repetitive unit, and " flexible glass layer 1 is folded between organic layer 1 " refers to
The case where there is no flexible glass layers 1 not by 1 sandwiched of organic layer.
In addition, in the present invention, flexible glass layer 1 can be folded between two layers of organic layer 1.However, this is practical
It is novel without being limited thereto.For example, flexible glass layer 1 can be folded between three layers of organic layer 1, i.e., the two sides of flexible glass layer 1 are divided
It Ju You not one layer of organic layer 1 and two layers of organic layer 1.It is respectively provided with organic layer by the two sides in flexible glass layer, can guaranteed
While flexible display screen cover board is provided simultaneously with enough hardness and bendable folding endurance, can more have using the organic layer for being located at two sides
Effect ground protection flexible glass layer, organic material can also discharge part external force by deformation under external impacts, to reduce external force
Impact to flexible display screen cover board and display screen body prevents flexible glass layer damaged by external force, further improves soft
The bendable folding endurance of property display screen cover board.Meanwhile in flexible glass layer due to by powerful external force after breakage, flexible glass layer it is broken
Piece can be adhered on the organic layer of two sides, this further prevented fragment be scattered and the damage to display screen body.
The utility model does not limit the number of plies of flexible glass layer 1 and organic layer 2.For example, in the situation shown in figure,
Flexible glass layer 1 and organic layer 2 can be at least one layer, and in the situation illustrated in figure 2, flexible glass layer 1 can be for extremely
One layer few, organic layer 2 can be at least two layers.However, from ultrathin and the angle of bendable folding endurance and hardness is taken into account, such as
In situation shown in FIG. 1, flexible display screen cover board preferably has one layer of flexible glass layer 1 and one layer of organic layer 2, in such as Fig. 2 institute
In the case where showing, preferably there is one layer of flexible glass layer 1 and two layers of organic layer 2.It should be appreciated that when composite/laminate structure is to be more than
When two layers of structure, the hardness and bendable folding endurance of flexible display screen cover board can be further increased, therefore is also feasible.
Fig. 3 is for connecing between the flexible glass layer 1 for showing the flexible display screen cover board of the utility model and organic layer 2
The schematic diagram of conjunction mode.As shown in figure 3, can be linked together by bonding between flexible glass layer 1 and organic layer 2.
In one embodiment, settable optical clear bonding agent is (hereinafter referred to as between flexible glass layer 1 and organic layer 2
OCA) 3 connection.The production method of the flexible display screen cover board of the present embodiment can be the surface coated optical in flexible glass layer 1
After transparent adhesive 3, organic layer 2 is coated on the surface of optical clear bonding agent 3.
OCA have colorless and transparent, light transmission rate 90% or more, adhesive strength it is good, can solidify under room temperature or medium temperature and
The features such as cure shrinkage is small.It is bonded flexible glass layer and organic layer by setting OCA, the aobvious of flexible display screen can not influenced
Show and realizes that the firm of flexible glass layer and organic layer bonding connects in the case where effect.Also, by OCA layers of setting, work as flexibility
When display screen cover board is by external impacts, OCA layers also can be absorbed and discharge part external force, to reduce external force for Flexible Displays
The impact for shielding cover board and display screen body, further increases the bendable folding endurance of flexible display screen cover board, and then improve Flexible Displays
The bendable folding endurance of screen.
It should be appreciated that the utility model can choose different bonding agents according to different application scenarios to realize flexible glass
It is bonding between glass layer and organic layer, if selected bonding agent can guarantee it is bonding between flexible glass layer and organic layer
Intensity, the utility model for bonding agent type without limitation.
In one embodiment, the range of the thickness of OCA3 can be 5~10 microns.In order to guarantee flexible display screen as far as possible
The thickness of cover board will not be excessive because of the setting of OCA, and in order to guarantee that the adhesive strength of flexible glass layer and organic layer is full
The demand actually used enough, the thickness for the OCA that the present embodiment is chosen is at 5~10 microns.
It should be appreciated that the utility model can choose the different-thickness of bonding agent according to different application scenarios, as long as institute
The bonding agent thickness of selection can guarantee the adhesive strength of flexible glass layer and organic layer, and the utility model is for bonding agent
Thickness without limitation.
Fig. 4~Fig. 7 is between flexible glass layer and organic layer for showing the flexible display screen cover board of the utility model
Juncture another schematic diagram.As shown in Figure 4 to 7, flexible glass layer 1 and organic layer 2 can pass through chimeric connection
Together, to improve the bond strength of flexible glass layer and organic layer.
In the present invention, at least one groove has can be set in the surface of flexible glass layer 1 contacted with organic layer 2
4, organic layer 2 is in groove 4.Groove 4 can be formed by etching, which is to etch partially, i.e., the depth of groove 4 is less than soft
The thickness of property glassy layer 1.The implementation of flexible display screen cover board, which can be, first passes through the method for etching for flexible glass layer 1
One side surface etches partially out one or more grooves, is then coated with organic layer in that reeded side of the tool of flexible glass layer, has
Machine layer can be due to its property automatically into groove.
By the setting of groove, not only can to avoid in the bending process of flexible display screen flexible glass layer 1 with it is organic
Layer 2 falls off, but also can reduce the use of bonding agent, to reduce the thickness of flexible display screen cover board, further promotees
Into Flexible Displays cover board ultrathin and improve the bendable folding endurance of flexible display screen cover board.
In the present invention, fluted 4 opening area summation and flexible glass layer 1 form fluted 4
The area ratio on surface can be 30%~60%.Wherein, " opening " it is recessed to refer to that the formation in flexible glass layer 1 of groove 4 has
Opening on the surface of slot 4.
In order to fully ensure that the bond strength of flexible glass layer and organic layer, preferably connect in flexible glass layer 1 and organic layer 2
Multiple grooves 4 are arranged in the surface of touching, and multiple grooves 4 can be evenly distributed on the table of flexible glass layer 1 contacted with organic layer 2
Face.The bond strength of flexible glass layer 1 Yu organic layer 2 can be improved by the way that groove 4 is densely arranged.However, it is contemplated that engagement
The actual demand of intensity reduces the concentration of groove 4 on the basis of meeting bond strength, can reduce lithography difficulty
And workload can be reduced.It is therefore preferable that setting 30%~60% for the concentration of groove 4.For example, the opening of groove 4
Area can be 25~400 microns2, further, depth can be 2~10 microns.
In one embodiment, as shown in figure 4, the cross sectional shape of groove 4 can be general square shape (rectangle or square).
Square groove is realized simply, and can satisfy the demand of the bond strength to flexible glass layer and organic layer.
In one embodiment, as shown in figure 5, the cross sectional shape of groove 4 can be it is substantially arc-shaped.Circular groove is realized
Simply, and it can be effectively dispersed in the stress generated when the bending of flexible display screen cover board, and then can be improved bendable folding endurance.
In one embodiment, as shown in fig. 6, the cross sectional shape of groove 4 can be substantially inverted trapezoidal.It is identical in opening area
In the case where, inverted trapezoidal groove can further enhance the bond strength of flexible glass layer and organic layer.
In one embodiment, as shown in fig. 7, the cross sectional shape of groove 4 can be general triangular.Triangular groove has
The advantages of simple realization, stress dispersion can be taken into account and improve bond strength.
It should be appreciated that the cross sectional shape of groove 4 is not limited to above-mentioned shape, as long as can satisfy flexible glass layer and organic layer
Bond strength requirement.For example, the cross sectional shape of groove 4 can be in rectangular, arc-shaped, inverted trapezoidal and triangle
Two or more any combination.
Fig. 8 is the engagement between flexible glass layer and organic layer for showing the flexible display screen cover board of the utility model
Another schematic diagram of mode.As shown in figure 8, the bond strength of flexible glass layer 1 and organic layer 2 is by making flexible glass layer 1
The surface (being surface 5 in Fig. 5) engaged in non-display area and with organic layer 2 is roughened and is improved.As thick
The example of roughening can be realized by bead.
By making the surface roughening contacted in non-display area and with organic layer 2 that is located at of flexible glass layer 1, increase is soft
The roughness on the surface 5 of property glassy layer 1, can be improved the whole bond strength of flexible glass layer 1 Yu organic layer 2, avoids flexibility
Flexible glass layer 1 and organic layer 2 fall off display screen in the process of bending.In addition, due to surface 5, improves organic layer pair
The adhesive force of flexible glass layer, it is possible to reduce the use of bonding agent, to reduce the thickness of flexible display screen cover board, further
It promotes the ultrathin of Flexible Displays cover board and improves the bendable folding endurance of flexible display screen cover board.
It should be appreciated that the engagement between the flexible glass layer and organic layer of the flexible display screen cover board of the utility model can be with
It is one of above-mentioned juncture or a variety of combinations.For example, flexible glass layer and organic layer can pass through Fig. 3 and Fig. 8 institute
The juncture that shows and link together or flexible glass layer and organic layer can be connected by above-mentioned three kinds of junctures
Together, to further increase the bond strength of flexible glass layer and organic layer.
On the other hand, the utility model also provides a kind of Flexible Displays mould group, which includes any of the above-described
Flexible display screen cover board.The Flexible Displays mould group is provided simultaneously with good bendable folding endurance, the transparency, ultrathin, enough intensity
With strong bendable folding endurance etc..
In another aspect, the utility model also provides a kind of flexible display apparatus, which includes above-mentioned soft
Property display module.The flexible display apparatus is provided simultaneously with good bendable folding endurance, the transparency, ultrathin, enough intensity and strong
Bendable folding endurance etc..
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, made any modification, equivalent replacement etc. should be included in the protection of the utility model
Within the scope of.
Claims (13)
1. a kind of flexible display screen cover board, which is characterized in that the flexible display screen cover board has composite/laminate structure, described multiple
Closing stepped construction includes at least one layer of flexible glass layer being stacked and at least one layer of organic layer.
2. flexible display screen cover board according to claim 1, which is characterized in that the composite/laminate structure includes successively layer
At least one layer of flexible glass layer of folded setting and at least one layer of organic layer.
3. flexible display screen cover board according to claim 1, which is characterized in that the composite/laminate structure includes that stacking is set
At least one layer of flexible glass layer and at least two layers of organic layer, the flexible glass layer set are folded between the organic layer.
4. flexible display screen cover board according to any one of claim 1 to 3, which is characterized in that the flexible glass layer
It is linked together with the organic layer by bonding.
5. flexible display screen cover board according to claim 4, which is characterized in that the flexible glass layer and the organic layer
It is linked together by optical clear bonding agent.
6. flexible display screen cover board according to claim 5, which is characterized in that the optical clear bonding agent with a thickness of
5~10 microns.
7. flexible display screen cover board according to any one of claim 1 to 3, which is characterized in that the flexible glass layer
It is linked together with the organic layer by chimeric.
8. flexible display screen cover board according to claim 7, which is characterized in that the flexible glass layer with it is described organic
The surface of layer contact is formed at least one groove, and the organic layer is in the groove.
9. flexible display screen cover board according to claim 8, which is characterized in that the cross sectional shape of the groove is selected from side
One of shape, arc-shaped, inverted trapezoidal and triangle are a variety of,
The area ratio that the formation of the opening area of the groove and the flexible glass layer has the surface of the groove is 30%
~60%.
10. flexible display screen cover board according to any one of claim 1 to 3, which is characterized in that the flexible glass layer
Be located in non-display area and the surface that engages with the organic layer is roughened processing.
11. flexible display screen cover board according to any one of claim 1 to 3, which is characterized in that the flexible glass layer
Hardness be greater than or equal to 7H, the flexible glass layer be ultra-thin glass layer, the ultra-thin glass layer it is micro- with a thickness of 10~50
Rice,
The organic layer with a thickness of 5~20 microns, the material of the organic layer is selected from polyimides, polyethylene and poly- methyl-prop
One of e pioic acid methyl ester is a variety of.
12. a kind of Flexible Displays mould group, which is characterized in that the Flexible Displays mould group includes any one of claims 1 to 11
The flexible display screen cover board.
13. a kind of flexible display apparatus, which is characterized in that the flexible display apparatus includes that flexibility described in claim 12 is aobvious
Show mould group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821090165.2U CN208737340U (en) | 2018-07-10 | 2018-07-10 | Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821090165.2U CN208737340U (en) | 2018-07-10 | 2018-07-10 | Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN208737340U true CN208737340U (en) | 2019-04-12 |
Family
ID=66026840
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| CN108962028A (en) * | 2018-07-10 | 2018-12-07 | 云谷（固安）科技有限公司 | Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus |
| CN110211499A (en) * | 2019-06-19 | 2019-09-06 | Oppo（重庆）智能科技有限公司 | Folding screen and its manufacturing method and mobile terminal |
| CN110266839A (en) * | 2019-06-15 | 2019-09-20 | 恩利克（浙江）智能装备有限公司 | The ultra-thin glass cover sheet structure of Folding display screen mobile phone |
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| CN108962028A (en) * | 2018-07-10 | 2018-12-07 | 云谷（固安）科技有限公司 | Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus |
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| CN110266839A (en) * | 2019-06-15 | 2019-09-20 | 恩利克（浙江）智能装备有限公司 | The ultra-thin glass cover sheet structure of Folding display screen mobile phone |
| CN110211499A (en) * | 2019-06-19 | 2019-09-06 | Oppo（重庆）智能科技有限公司 | Folding screen and its manufacturing method and mobile terminal |
| CN113366556A (en) * | 2019-07-11 | 2021-09-07 | 深圳市柔宇科技股份有限公司 | Flexible cover plate, flexible display screen and display panel |
| JP7174885B2 (en) | 2019-12-19 | 2022-11-17 | 浙江道明光電科技有限公司 | Colorless and transparent polyimide composite film and its manufacturing method |
| CN110922623A (en) * | 2019-12-19 | 2020-03-27 | 浙江道明光电科技有限公司 | Colorless transparent polyimide composite film and preparation method thereof |
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| CN113087402A (en) * | 2019-12-23 | 2021-07-09 | Uti有限公司 | Flexible covering window |
| CN113087402B (en) * | 2019-12-23 | 2023-08-25 | Uti有限公司 | flexible cover window |
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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: Flexible display screen cover board, flexible display module and flexible display device Granted publication date: 20190412 License type: Common License Record date: 20191030 |