CN209625665U - Flexible die group, display module and display equipment - Google Patents
Flexible die group, display module and display equipment Download PDFInfo
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- CN209625665U CN209625665U CN201920029199.9U CN201920029199U CN209625665U CN 209625665 U CN209625665 U CN 209625665U CN 201920029199 U CN201920029199 U CN 201920029199U CN 209625665 U CN209625665 U CN 209625665U
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Abstract
The utility model discloses a kind of flexible die group, display module and display devices, wherein, flexible die group, comprising: bent area, the first non-bent area and the second non-bent area, first non-bent area is arranged close to bent area, and the second non-bent area is located at the first side of the non-bent area far from bent area；First adhesive layer is arranged in bent area；Second adhesive layer is arranged in the first non-bent area；Third adhesive layer, setting is in the second non-bent area, the sticky viscosity less than the second adhesive layer of the first adhesive layer and the second adhesive layer.The adhesive layer viscosity of first non-bent area is larger, fixed function effectively more can be played to film layer, the viscosity of bent area and the second non-bent area adhesive layer is smaller, it is flexible compared with the adhesive layer of the first non-bent area high, it can be more can effectively discharge bent area and the first non-film internal stress for bending area edge when the bending of flexible die group, the film internal stress of flexible die group can be discharged, prevents film layer from separating while effective fixed film layer.
Description
Technical field
The present invention relates to field of display technology, and in particular to a kind of flexible die group, display module and display equipment.
Background technique
Include multiple film layers in flexible die group, such as Flexible Displays mould group, there is bent area, in bent area due to adjacent
The phenomenon that bending ability between film layer is inconsistent, generally occurs within film layer separation especially has the display in static bending region
In mould group, static state bending region the phenomenon that being chronically at bending state, film layer separation occur, is even more serious, for example, Flexible Displays
Adjacent touch control layer and polaroid touch control layer in mould group, polaroid bending ability are inconsistent, in use or can
During property test, often there is the phenomenon that film layer separation.
Summary of the invention
For this purpose, the invention proposes a kind of flexible die group, display module and display equipment, to inhibit film layer in flexible die group
The phenomenon that separation.
According in a first aspect, the embodiment of the invention provides a kind of flexible die groups, comprising: bent area, the first non-bent area
With the second non-bent area, the first non-bent area is arranged close to the bent area, and the second non-bent area is located at described the
One side of the non-bent area far from the bent area；First adhesive layer is arranged in the bent area；Second adhesive layer, setting exist
First non-bent area；Third adhesive layer, in the second non-bent area, the viscosity of first adhesive layer and the second adhesive layer is small for setting
In the viscosity of the second adhesive layer.
Optionally, the width of first adhesive layer is greater than the width of the bent area.
Optionally, the width of first adhesive layer is 0.2mm-4mm bigger than the width of the bent area.
Optionally, the described second non-bent area is located at the edge of the flexible die group；Preferably, the third adhesive layer
Width is 0.1mm-2mm.
Optionally, first adhesive layer and/or second adhesive layer include Optical transparent adhesive.
Optionally, second adhesive layer includes uv-curable glue.
Optionally, first adhesive layer, second adhesive layer and the third adhesive layer are located on the same floor.
Optionally, flexible die group further include: different the first film layer and the second film layer of bending ability, first film layer and
Second film layer is bonded by first adhesive layer, second adhesive layer and the third adhesive layer；Preferably, described
First film layer includes polaroid, and second film layer includes touch control layer.
According to second aspect, the embodiment of the invention provides a kind of display modules, comprising: above-mentioned first aspect any one
The flexible die group；Display panel, the flexible die group setting is on said display panel.
According to second aspect, the embodiment of the invention provides a kind of display equipment, comprising: shows described in above-mentioned second aspect
Show mould group.
The embodiment of the present invention has the advantages that
1. flexible die group has bent area, the first non-bent area and the second non-bent area, the first non-bent area is close
The bent area setting, the second non-bent area are located at the described first side of the non-bent area far from the bent area, bend
The viscosity of first adhesive layer in area and the third adhesive layer of the second non-bent area is viscous less than the second adhesive layer of the first non-bent area
Property, the first biggish second adhesive layer of non-bent area selection viscosity can be more effectively to the film layer of the second adhesive layer two sides
Fixed function is played, and in lesser first adhesive layer of bent area viscosity, since viscosity is small, compared with the second bonding of the first non-bent area
Layer is flexible high, can be more can effectively discharge bent area film internal stress when the bending of flexible die group, and the second non-bent area is located at
First non-bent area periphery more can effectively be released when can be bent with flexible die group using viscosity lesser third adhesive layer
Put the film internal stress of the first non-bent area periphery.It is thus possible to discharge the film of flexible die group while effective fixed film layer
Internal stress.
2. the width of the first adhesive layer is greater than the width of bent area, in bending, bent area more can be effectively discharged
The film internal stress at edge promotes bending ability.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 shows the plan view of flexible die group of the embodiment of the present invention；
Fig. 2 shows the A-A cross-sectional views of Fig. 1 of the present invention；
Wherein appended drawing reference are as follows:
The bent area 10-；The first adhesive layer of 11-；The non-bent area 20- first；The second adhesive layer of 21-；30- second is non-
Bent area；31- third adhesive layer；The first film layer of 100-；The second film layer of 200-.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Often there is the phenomenon that film layer separation in bent area in current flexible die group, such as Flexible Displays mould group, sends out
Bright people has made intensive studies, and the adhesiveness of adhesive layer still can not between structure or increase film layer of the discovery by changing adhesive layer
Very well the phenomenon that the separation of change film layer, in the reliability test of static state bending, even if adhesive layer or increasing using more preferable adhesiveness
The roughness for adding adhesive surface still will appear more film when the time that temperature rises to 70 DEG C or tests doubling above
Layer segregation phenomenon, inventors have found that can not effectively reduce the phenomenon that film layer separates mainly due to phase to adhesive layer change
The material of adjacent film layer is different, causes the bending performance of adjacent film layer different, for example, touch control layer in Flexible Displays mould group and its
Bending performance between adjacent polaroid differs greatly, and is due to protective layer i.e. cellulose acetate (Triacetyl in polaroid
Cellulose, TAC) layer elasticity it is poor, cause the bending performance of adjacent film layers inconsistent, therefore, for a long time or temperature it is higher
In the environment of, eventually resulting in film layer separation if changing the material or structure of film layer may result in other problems, for example,
To film layer reduction processing, it may result in film layer structure performance and convert, the reliability for reducing flexible die group is asked for above-mentioned
Topic, inventor propose following scheme, to inhibit the phenomenon that bend the separation of region film layer.
The embodiment of the invention provides a kind of flexible die groups, as shown in Figure 1, flexible die group includes: that bent area 10, first is non-
Bent area 20 and the second non-bent area 30, the first non-bent area 20 are arranged close to bent area, and the second non-bent area 30 is located at first
Non- side of the bent area 20 far from bent area；Fig. 2 shows Fig. 1 cross-sectional views, as shown in Fig. 2, flexible die group further includes first viscous
Layer 11 is tied, is arranged in bent area 10；Second adhesive layer 21 is arranged in the first non-bent area 20；Third adhesive layer 31, setting is the
Viscosity of the viscosity of two non-bent areas 30, the first adhesive layer 11 and the second adhesive layer 21 less than the second adhesive layer 21.In this implementation
In example, the non-bent area of flexible die group can be divided into the first non-bent area 20 and the second non-bent area 30, the first non-bent area 20
It may include two parts, be arranged in the two sides of the bent area respectively, the second non-bent area 30 may include two parts, arrange respectively
Cloth is in each side of the first non-bent area far from the bent area；.In the present embodiment, the first non-bent area 20 selects
Biggish second adhesive layer 21 of viscosity more effectively can play fixed function to the film layer of 21 two sides of the second adhesive layer, and
10 lesser first adhesive layer 11 of viscosity of bent area, it is flexible compared with the second adhesive layer 21 of the first non-bent area 20 since viscosity is small
Height, can be more can effectively discharge 10 film internal stress of bent area when the bending of flexible die group, and the second non-bent area 30 is located at the
One non-20 periphery of bent area, can be more effective when can be bent with flexible die group using viscosity lesser third adhesive layer 31
Discharge the film internal stress of the first non-20 periphery of bent area.It is thus possible to discharge flexible die group while effective fixed film layer
Film internal stress, prevent film layer from separating.
Specifically, the first adhesive layer 11, the second adhesive layer 21 and third adhesive layer 31 can be located on the same floor, certainly, the
One adhesive layer 11, the second adhesive layer 21 and third adhesive layer 31 can also be located at different layers, in the present embodiment, with the first bonding
The 11, second adhesive layer 21 of layer and third adhesive layer 31 are illustrated for being located on the same floor, two adjacent film layers, at this
In embodiment, for bending ability different the first film layer 100 and the second film layer 200, specifically, can with the first film layer 100
Think polaroid, the second film layer 200 is to be illustrated for touch control layer.Since polaroid is different with the bending ability of touch control layer,
In bending, it is easy to appear the phenomenon that film layer separates, around lesser first adhesive layer 11 of bent area use viscosity, bent area
Non- bent area using larger second adhesive layer 21 of viscosity, and edge of the non-bent area far from bent area 10 using viscosity compared with
Small third adhesive layer 31 can effectively fix polaroid and touch control layer, at the same more can effectively discharge polaroid and
The film internal stress of touch control layer bent area and edge.
As optional embodiment, to guarantee to bend the bending degree of effect and flexible die group, in optional embodiment
In, the width of bent area 10 is greater than crooked process radius, flexible when the width in bent area 10 is greater than or equal to π times of crooked process radius
Doubling may be implemented in mould group, and in the present embodiment, the width of alleged bent area 10 is that bent area 10 is non-curved along bent area 10, first
Size on the arragement direction of folding area 20 and the second non-bent area 30.
Arragement direction as optional embodiment, along bent area 10, the first non-bent area 20 and the second non-bent area 30
On, the size of the first adhesive layer 11 is greater than the size of bent area 10.For example, may refer to Fig. 1, flexible die group is rectangle,
Bent area 10, the first non-bent area 20 and the second non-bent area 30 are arranged along the long side of flexible die group, and bent area 10, first is non-curved
Folding area 20 and the second non-bent area 30 can be rectangle, also use viscosity smaller close to the edge of bending in the first non-bent area 20
The first adhesive layer 11, the stress of bent area 10 and the first non-20 boundary of bent area can be discharged.As preferred embodiment,
The width of first adhesive layer 11 is 0.2mm-4mm bigger than the width of bent area, and the first non-bent area 20 is located at the two of bent area 10
Side, the first adhesive layer 11 can be equal beyond the width of bent area two sides, can also be unequal, when equal, the first adhesive layer
11 width beyond 10 two sides of bent area can be 0.1-2mm.It can guarantee the fastness of the bonding of film layer as far as possible in this way, again
The stress of the first non-bent area 20 and 10 boundary of bent area can effectively be discharged.
In an alternate embodiment of the invention, the second non-bent area 30 is located at flexible die group perpendicular to bent area 10, the first non-bending
The edge of the arragement direction in area 20 and the second non-bent area 30, corresponding third adhesive layer 31 also are located at the edge of flexible die group,
As preferred embodiment, the width of third adhesive layer 31 is 0.1mm-2mm, can effectively discharge flexible die group edge
The bond area of the second adhesive layer 21 is improved while film internal stress as far as possible.Improve the fastness of film layer bonding.
As optional embodiment, the first adhesive layer 11 and/or the second adhesive layer 21 include Optical transparent adhesive (Optical
Clear Adhesive, OCA) for its light transmittance greater than 92%, caking property is thousands of mPa.s, the second adhesive layer 21 includes ultraviolet solid
Change glue, i.e. UV glue, the viscosity of UV glue is greater than 1WmPa.s.Therefore, UV glue is arranged in the first non-bent area 20, in the second non-bending
OCA is arranged in area 30 and bent area, can not only guarantee the fastness of film layer bonding, but also can discharge bent area 10 and display module side
The film internal stress of edge.
The embodiment of the invention provides a kind of display module, which includes the flexible die group in above-described embodiment.
And display panel, the flexible die group setting is on said display panel.Specifically, the display module has bent area, the
One non-bent area and the second non-bent area, be provided between the touch control layer and polaroid in display module in above-described embodiment
One adhesive layer is located at bent area, and the second adhesive layer is located at the first non-bent area and third adhesive layer is located at the second non-bent area.The
One biggish second adhesive layer of non-bent area selection viscosity, more effectively can play fixed function to touch control layer and polaroid,
And in lesser first adhesive layer of bent area viscosity, it is flexible compared with the second adhesive layer of the first non-bent area high since viscosity is small, it can
It more can effectively discharge touch control layer and polaroid bent area stress when bending with display module, the second non-bent area is located at the
One non-bent area periphery, the i.e. edge of display module, using the lesser third adhesive layer of viscosity, when can be bent with display module,
It more can effectively discharge display module edge touch control layer and polaroid stress.It is thus possible to effectively guaranteeing touch control layer
While fastness between Pianguan County's piece, the stress between polaroid and touch control layer is discharged, when preventing bending, touch control layer and partially
Mating plate separation.The embodiment of the invention also provides a kind of display equipment, comprising: display module described in above-described embodiment, In
In the present embodiment, which can be folding or bending device, specifically, the display equipment may include mobile phone, put down
Plate computer, at least one of computer or television.
Although being described in conjunction with the accompanying the embodiment of the present invention, those skilled in the art can not depart from the present invention
Spirit and scope in the case where various modifications and variations can be made, such modifications and variations are each fallen within by appended claims institute
Within the scope of restriction.
Claims (11)
1. a kind of flexible die group characterized by comprising bent area, the first non-bent area and the second non-bent area, described first
Non- bent area is arranged close to the bent area, and the second non-bent area is located at the described first non-bent area far from the bent area
Side；
First adhesive layer is arranged in the bent area；
Second adhesive layer is arranged in the first non-bent area；
Third adhesive layer, setting is in the second non-bent area, and the viscosity of first adhesive layer and the third adhesive layer is less than the
The viscosity of two adhesive layers.
2. flexible die group as described in claim 1, it is characterised in that；
The first non-bent area includes two parts, is arranged in the two sides of the bent area, the second non-bent area packet respectively
Two parts are included, are arranged in each side of the first non-bent area far from the bent area respectively；
Arragement direction along the bent area, the first non-bent area and the second non-bent area, first adhesive layer
Size be greater than the bent area size.
3. flexible die group as claimed in claim 2, it is characterised in that；
The width of first adhesive layer is 0.2mm-4mm bigger than the width of the bent area.
4. flexible die group as claimed in claim 2, which is characterized in that
The second non-bent area is located at the flexible die group perpendicular to the edge of the arragement direction.
5. flexible die group as described in claim 1, which is characterized in that
First adhesive layer and/or second adhesive layer include Optical transparent adhesive.
6. flexible die group as claimed in claim 5, which is characterized in that
Second adhesive layer includes uv-curable glue.
7. flexible die group as claimed in any one of claims 1 to 6, which is characterized in that
First adhesive layer, second adhesive layer and the third adhesive layer are located on the same floor.
8. flexible die group as claimed in claim 7, which is characterized in that further include:
Bending ability different the first film layer and the second film layer, first film layer and second film layer are viscous by described first
Tie layer, second adhesive layer and third adhesive layer bonding.
9. flexible die group as claimed in claim 8, which is characterized in that
First film layer includes polaroid, and second film layer includes touch control layer.
10. a kind of display module characterized by comprising
Flexible die group as described in any one of claims 1-9；
Display panel, the flexible die group setting is on said display panel.
11. a kind of display equipment, which is characterized in that including display module as claimed in claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920029199.9U CN209625665U (en) | 2019-01-08 | 2019-01-08 | Flexible die group, display module and display equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920029199.9U CN209625665U (en) | 2019-01-08 | 2019-01-08 | Flexible die group, display module and display equipment |
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| CN209625665U true CN209625665U (en) | 2019-11-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208540A1 (en) * | 2020-04-17 | 2021-10-21 | 京东方科技集团股份有限公司 | Foldable display device and terminal apparatus |
| CN113674628A (en) * | 2020-12-31 | 2021-11-19 | 友达光电股份有限公司 | Flexible display module |
| CN114822231A (en) * | 2021-01-29 | 2022-07-29 | 北京小米移动软件有限公司 | Curved screen, terminal and manufacturing method of curved screen |
| CN115100965A (en) * | 2022-08-04 | 2022-09-23 | 昆山国显光电有限公司 | Display device |
-
2019
- 2019-01-08 CN CN201920029199.9U patent/CN209625665U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208540A1 (en) * | 2020-04-17 | 2021-10-21 | 京东方科技集团股份有限公司 | Foldable display device and terminal apparatus |
| CN113674628A (en) * | 2020-12-31 | 2021-11-19 | 友达光电股份有限公司 | Flexible display module |
| CN114822231A (en) * | 2021-01-29 | 2022-07-29 | 北京小米移动软件有限公司 | Curved screen, terminal and manufacturing method of curved screen |
| CN115100965A (en) * | 2022-08-04 | 2022-09-23 | 昆山国显光电有限公司 | Display device |
| CN115100965B (en) * | 2022-08-04 | 2024-02-20 | 昆山国显光电有限公司 | Display device |
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