CN110189638A - Display module and display device - Google Patents
Display module and display device Download PDFInfo
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- CN110189638A CN110189638A CN201910571995.XA CN201910571995A CN110189638A CN 110189638 A CN110189638 A CN 110189638A CN 201910571995 A CN201910571995 A CN 201910571995A CN 110189638 A CN110189638 A CN 110189638A
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- glue
- hollowed out
- out area
- display module
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention provides a kind of display module and display devices, it is related to field of display technology, the problems such as occurring a possibility that the defects of fold for reducing the glue-line in display module, increase the bonding force between display module mesoglea and functional layer, avoid functional layer that degumming occurs.Along first direction, the fold domain of display module is between two neighboring includes non-collapsible region；Display module includes flexible display panels, at least one layer of functional layer and at least one layer of glue-line；At least one layer of functional layer is located at least in the first side of flexible display panels；At least one layer of glue-line is located at the side of the close flexible display panels of at least one layer of functional layer, or, at least one layer of glue-line is located at the side of the separate flexible display panels of functional layer；Glue-line includes at least the first hollowed out area of the juncture area positioned at fold domain and includes non-collapsible region；Fold domain extends in a second direction along bending shaft, folding shaft is folded when display module folds, and second direction is intersected with first direction.
Description
[technical field]
The present invention relates to field of display technology more particularly to a kind of display modules and display device.
[background technique]
With the continuous development of display technology, In order to meet different use demands, the various displays with different characteristics
Product also comes into being therewith.Flexible display apparatus is such a flexible new display product, when in use, is used
Family, which can according to need, to be folded flexible display apparatus or is crimped, to reduce the size of display device, improves display dress
The portability set.Alternatively, foldable display device can also be unfolded, to obtain biggish display picture.Currently, Flexible Displays
The performance improvement of device has become the focal point of researcher.
[summary of the invention]
In view of this, the embodiment of the invention provides a kind of display module and display device, for being carried out in display module
Repeatedly after bending operation, reduces the glue-line in display module and a possibility that the defects of fold occur, increase display module mesoglea
Bonding force between functional layer, avoid functional layer occur degumming the problems such as.
On the one hand, the embodiment of the invention provides a kind of display module, which includes at least one fold domain
With at least two includes non-collapsible regions, the fold domain and the includes non-collapsible region are arranged along first direction, and the folding region
Domain is between two adjacent includes non-collapsible regions；
Flexible display panels, the flexible display panels include opposite the first side and second side；
At least one layer of functional layer, at least one layer functional layer are located at least in the first side of the flexible display panels；
At least one layer of glue-line, at least one layer glue-line are located at the close Flexible Displays of at least one layer of functional layer
The side of panel, alternatively, at least one layer glue-line is located at the side far from the flexible display panels of the functional layer；
The glue-line includes hollowed out area；The hollowed out area includes at least the first hollowed out area, first vacancy section
Domain is located at the juncture area of the fold domain and the includes non-collapsible region；
When the display module folds, the fold domain is prolonged in a second direction along bending shaft, the folding shaft is folded
It stretches, the second direction is intersected with the first direction.
On the other hand, the embodiment of the invention provides a kind of display devices, including above-mentioned display module.
Display module and display device provided in an embodiment of the present invention, by the way that fold domain and non-collapsible will be located in glue-line
The part of the juncture area in region removes, that is, the juncture area for correspond to fold domain and includes non-collapsible region in glue-line is arranged the
One hollowed out area.When the display module folds, because being located at the part of the first hollowed out area does not have glue-line, thus, in glue-line
Part positioned at the first hollowed out area also would not deformation occurs.In turn, display module is being restored from folded state to expansion
When state, the aggregation or thinned problem of the glue-line caused by restoring not in time the deformation of glue-line would not also occur.Therefore,
Using display module provided in an embodiment of the present invention, by repeatedly folding operation and restoring to unfolded state, it can
The planarization for improving glue-line guarantees the adhesiveness between functional layer that glue-line bonds, avoids that functional layer is made degumming etc. occur
Problem.
[Detailed description of the invention]
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of schematic cross-section of display module in the prior art；
Fig. 2 is a kind of schematic top plan view of the display module under unfolded state provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic cross-section of the Fig. 2 along DD '；
Fig. 4 is another schematic cross-section of the Fig. 2 along DD '；
Fig. 5 is a kind of schematic top plan view of the display module under folded state provided in an embodiment of the present invention；
Fig. 6 is a kind of schematic cross-section of the Fig. 5 along EE '；
Fig. 7 is the schematic top plan view of another display module under folded state provided in an embodiment of the present invention；
Fig. 8 is a kind of schematic cross-section of the Fig. 7 along GG '；
Fig. 9 is another schematic cross-section of Fig. 2 along DD '；
Figure 10 is another schematic cross-section of Fig. 2 along DD '；
Figure 11 is the schematic top plan view of another display module under folded state provided in an embodiment of the present invention；
Figure 12 is a kind of schematic cross-section of the Figure 11 along GG '；
Figure 13 is the schematic top plan view of another display module under folded state provided in an embodiment of the present invention；
Figure 14 is a kind of schematic cross-section of the Figure 13 along HH '；
Figure 15 is the schematic cross-section of another display module under unfolded state provided in an embodiment of the present invention；
Figure 16 is another schematic cross-section of Fig. 2 along DD '；
Figure 17 is the schematic top plan view of another display module under unfolded state provided in an embodiment of the present invention；
Figure 18 is a kind of schematic cross-section of the Figure 16 along FF '；
Figure 19 is another schematic cross-section of the Figure 16 along FF '；
Figure 20 is another schematic cross-section of Fig. 2 along DD '；
Figure 21 be it is provided in an embodiment of the present invention another be in the schematic cross-section of the display module under unfolded state；
Figure 22 is another schematic cross-section of Fig. 2 along DD '；
Figure 23 is the schematic cross-section after the bending of display module shown in Figure 22；
Figure 24 be it is provided in an embodiment of the present invention another be in the schematic cross-section of the display module under unfolded state；
Figure 25 be it is provided in an embodiment of the present invention another be in the schematic top plan view of the display module under unfolded state；
Figure 26 be it is provided in an embodiment of the present invention another be in the schematic top plan view of the display module under unfolded state；
Figure 27 is a kind of schematic diagram of display device provided in an embodiment of the present invention.
[specific embodiment]
For a better understanding of the technical solution of the present invention, being retouched in detail to the embodiment of the present invention with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It will be appreciated that though in embodiments of the present invention vacancy section may be described using term first, second, third, etc.
Domain, but these hollowed out areas should not necessarily be limited by these terms.These terms are only used to for being distinguished from each other out hollowed out area.For example,
In the case where not departing from range of embodiment of the invention, the first hollowed out area can also be referred to as the second hollowed out area, similarly, the
Two hollowed out areas can also be referred to as the first hollowed out area.
As shown in FIG. 1, FIG. 1 is a kind of schematic cross-sections of display module in the prior art, wherein the display module includes
Folding region B ' and non-collapsible district A '.In order to protect to display module, and improve and enrich the performance of display module, usually
The multiple functions layer 2 ' including polaroid etc. can be attached in flexible display panels 1 '.Currently, glue material 3 ' would generally be used
Display panel 1 ' and functional layer 2 ' are bonded.But present inventor has found in the course of the research, carries out to display module
Repeatedly display module is being restored repeatedly from bending state to unfolded state, that is, after bending operation by the display module
Folding region B ' restores to unfolded state, and degumming phenomenon can occur for the functional layer 2 ' in the display module.
By largely testing and studying, the applicant is deforming inventors have found that since glue material 3 ' belongs to viscoelastic body
Strain lags behind stress in the process, that is, after display module is restored from bending state to unfolded state, is located at the glue of folding region B '
The strain that material 3 ' generates in bending deformation process cannot restore in time.Moreover, because glue material 3 ' is usually flood structure, because
This also can be with positioned at folding region for being located in non-collapsible district A ' for close to the glue material 3 ' at the position of folding region B '
A degree of deformation occurs for the bending of the glue material 3 ' of B '.But when display module is bent, for being located at display module
The initial position bent, i.e., for the glue material 3 ' of the juncture area of folding region B ' and non-collapsible district A ', since it is being leaned on
The side of nearly folding region B ' is different with the stress in the side close to non-collapsible district A ', and therefore, glue material 3 ' at this location exists
The deformation degree of side close to folding region B ' and the side close to non-collapsible district A ' also has larger difference.When display module is restored
To unfolded state, the glue material 3 ' at the position is in the side close to folding region B ' and the recovery close to the side of non-collapsible district A '
Degree also has larger difference.Therefore, it is easy to appear the aggregation of glue material 3 ' at this location or is thinned, leads to glue material 3 ' in the position
Place generates the defect of similar fold.The problem not only influences the appearance of display module, moreover, fold can also be to viscous with the glue material 3 '
The functional layer 2 ' of conjunction applies the release effect power far from glue material 3 ', and functional layer 2 ' is caused to be easy to happen degumming phenomenon, influences
The performance of display module.
Based on this, the embodiment of the invention provides a kind of display modules, as shown in Fig. 2, Fig. 2 provides for the embodiment of the present invention
A kind of display module schematic top plan view under unfolded state, wherein the display module includes at least one fold domain
11 and at least two includes non-collapsible regions 12, fold domain 11 and includes non-collapsible region 12 arranged along first direction x, and fold domain 11
Between two adjacent includes non-collapsible regions 12.
As shown in figure 3, Fig. 3 is a kind of schematic cross-section of the Fig. 2 along DD ', wherein the display module further includes Flexible Displays
Panel 2, flexible display panels 2 include the first side 21 and second side 22 that i.e. third direction z is oppositely arranged along its thickness direction.
The display module further includes at least one layer of functional layer 3 and at least one layer of glue-line 4.Wherein, at least one layer of above-mentioned function
Layer 3 is located at the first side 21 of flexible display panels 2.Certainly, in addition to the functional layer 3 positioned at the first side 21 of flexible display panels 2
Except, functional layer 3 can also be also provided in second side 22 of flexible display panels 2.The of flexible display panels 2 in Fig. 3
Side 21 and second side 22 are respectively provided with an one functional layer 3 as signal.
Illustratively, multiple positions in the display module can be set in above-mentioned glue-line 4, for example, as shown in figure 3, can
Glue-line 4 is set to functional layer 3 close to the side of flexible display panels 2, that is, glue-line 4 is arranged and is shown in functional layer 3 and flexibility
Show between panel 2.Alternatively, as shown in figure 4, Fig. 4 is another schematic cross-section of the Fig. 2 along DD ', wherein can also will at least
One layer of glue-line 4 is set to side of the functional layer 3 far from flexible display panels 2.
As shown in Figure 3 and Figure 4, glue-line 4 includes hollowed out area 40；Hollowed out area 40 includes at least the first hollowed out area 41,
First hollowed out area 41 is located at the juncture area of fold domain 11 and includes non-collapsible region 12.That is, the first hollowed out area 41
Have with the juncture area of fold domain 11 and includes non-collapsible region 12 overlapping.That is, the first hollowed out area 41 can be entirely located in boundary
Region, alternatively, the juncture area can be located in the first hollowed out area 41 with some, another part be located at fold domain 11 or
Includes non-collapsible region 12.
As shown in Fig. 2, the fold domain 11 of the display module includes folding shaft 110, y prolongs folding shaft 110 in a second direction
It stretches, second direction y intersects with first direction x.When display module is folded, for example, when display module overbending direction with
When the direction of the first side 21 direction second side 22 of flexible display panels 2 is identical, fold domain 11 can be bent to along folding shaft 110
State shown in Fig. 5 and Fig. 6, Fig. 5 are that a kind of vertical view of the display module under folded state provided in an embodiment of the present invention is shown
It is intended to, Fig. 6 is a kind of schematic cross-section of the Fig. 5 along EE '.Alternatively, when the overbending direction and flexible display panels 2 of display module
When the direction of first side 21 of the direction of second side 22 is identical, fold domain 11 can be bent to shape shown in Fig. 7 and Fig. 8 along folding shaft 110
State, Fig. 7 are the schematic top plan view of another display module under folded state provided in an embodiment of the present invention, Fig. 8 Fig. 7
Along a kind of schematic cross-section of GG '.
Display module provided in an embodiment of the present invention, by the way that fold domain 11 and includes non-collapsible region 12 will be located in glue-line 4
Juncture area part removal, that is, the juncture area for correspond to fold domain 11 and includes non-collapsible region 12 in glue-line 4 is arranged the
One hollowed out area 41.When the display module folds, as shown in Figure 6 and Figure 8, because the part for being located at the first hollowed out area 41 does not have
There is glue-line 4, thus, the part in glue-line 4 positioned at the first hollowed out area 41 also would not deformation occurs.In turn, mould will be being shown
When group is restored from folded state to Fig. 3 and unfolded state shown in Fig. 4, would not also occur since glue-line 4 is close to folding region
Side and close to the side of non-collapsible district deformation degree is inconsistent and recovery extent it is inconsistent caused by glue-line 4 it is poly-
Collection or thinned problem.Therefore, using display module provided in an embodiment of the present invention, passing through multiple folding operation and restoring
To unfolded state, the planarization of glue-line 4 can be improved, the adhesiveness between functional layer 3 that guarantee glue-line 4 bonds is kept away
Exempt from that functional layer 3 is made the problems such as degumming occur.
It should be noted that in Fig. 2, Fig. 5 and shown in Fig. 7 bowing for the position for clearly illustrating hollowed out area 40 in glue-line 4
In view, other film layers of such as functional layer 3 in addition to glue-line 4 are not shown.
Illustratively, above-mentioned first side 21 can be the backlight side of flexible display panels, by that will be located at display panel
The removal of glue-line 4 of backlight side forms the first hollowed out area 41, can be avoided the optical characteristics for influencing display module.
Illustratively, when the light emission side by the first side 21 as flexible display panels 2, that is, when will include the first vacancy section
When the light emission side of flexible display panels is arranged in the hollowed out area 40 in domain 41, can in hollowed out area 40 potting resin, to keep away
Exempt from the optical characteristics of influence display module.Illustratively, transmitance can be selected high and the resinous material for easily drawing high reply comes
It is filled.
Optionally, the mode that can be printed or be coated with forms above-mentioned resin.
Illustratively, position of above-mentioned first hollowed out area 41 in glue-line 4 can carry out individually below there are many design
Illustrate:
As shown in figure 9, Fig. 9 is another schematic cross-section of Fig. 2 along DD ', wherein the first hollowed out area 41 close to non-
The side 410 and fold domain 11 of fold domain 12 and the line of demarcation of includes non-collapsible region 12 are overlapping.It is equivalent to the first hollowed out area
41 from fold domain 11 and the line of demarcation of includes non-collapsible region 12 to 11 side of fold domain extend, in glue-line 4 be located at non-folding
The part in folded region 12 does not remove, and on the basis of improving the planarization of glue-line 4, can guarantee positioned at includes non-collapsible region 12
The adhesiveness for the functional layer 3 that glue-line 4 bonds.
As shown in Figure 10, Figure 10 is another schematic cross-section of Fig. 2 along DD ', wherein the first hollowed out area 41 is located at non-
Fold domain 12, and the side 510 of the close fold domain 11 of the first hollowed out area 41 and fold domain 11 and includes non-collapsible region 12
Line of demarcation 10 it is overlapping.Be equivalent to the first hollowed out area 41 from fold domain 11 and the line of demarcation of includes non-collapsible region 12 10 to
12 side of includes non-collapsible region extends, and does not remove to the part for being located at fold domain 11 in glue-line 4.So set, improving glue
On the basis of the planarization of layer 4, it can guarantee the adhesiveness for the functional layer 3 that the glue-line 4 positioned at fold domain 11 bonds.And
And in this case, even if clustering phenomena occurs in the glue-line 4 for being located at fold domain 11, the first hollowed out area 41 can also
As the space for accommodating aggregation glue-line 4, fold is formed so as to avoid glue-line 4 from assembling in the thickness direction thereof, is further mentioned
The planarization of high glue-line 4.
As described above, it is with the first hollowed out area 41 respectively from fold domain 11 and non-collapsible district that Fig. 9 and Figure 10, which are equivalent to,
The line of demarcation in domain 12 is risen extend to 11 side of fold domain or 12 side of includes non-collapsible region for the position of the first hollowed out area 41
Set the signal of progress.In fact, can also enable the first hollowed out area 41 from fold domain 11 and the line of demarcation of includes non-collapsible region 12
Extend simultaneously to fold domain 11 and 12 two sides of includes non-collapsible region, that is, make the first hollowed out area 41 while including and fold domain
The part of 11 overlappings, and the part Chong Die with includes non-collapsible region 12.Specifically, as shown in figure 3, at this point, the first hollowed out area
41 include first part 411 and second part 412, and first part is Chong Die with fold domain 11, second part and includes non-collapsible region
12 overlappings.
As shown in figure 3, in the plane by first direction x and third direction z, fold domain 11 and includes non-collapsible region 12
Line of demarcation 10 along third direction z extend.Also, along third direction z, line of demarcation 10 passes through the inside of the first hollowed out area 41.
So set, the smaller of the area of first part 411 and second part 412 setting can be located at fold domain 11 to take into account
The adhesiveness of the functional layer 3 bonded with the glue-line 4 of includes non-collapsible region 12.
When a hollowed out area being only arranged in glue-line 4, as is illustrated by figs. 11 and 12, Figure 11 provides for the embodiment of the present invention
Another kind be in the schematic top plan view of the display module under folded state, Figure 12 is a kind of schematic cross-section of the Figure 11 along GG ',
Wherein it is possible to which it is identical to set fold domain 11 for the shape of hollowed out area and area, that is, by the close of the first hollowed out area 41
The side 410 of includes non-collapsible region 12 is set as overlapping with fold domain 11 and the line of demarcation of one of includes non-collapsible region 12 10, will
The side 510 of the close fold domain 11 of first hollowed out area 41 and the line of demarcation of fold domain 11 and another includes non-collapsible region 12
10 are set as overlapping.
Alternatively, as shown in Figure 13 and Figure 14, Figure 13 is provided in an embodiment of the present invention another under folded state
The schematic top plan view of display module, Figure 14 are a kind of schematic cross-section of the Figure 13 along HH ', wherein can be by the face of hollowed out area
Product is arranged larger, makes hollowed out area through fold domain 11 and extends in includes non-collapsible region 12, that is, by the first hollowed out area
The side 410 of 41 close includes non-collapsible region 12 is disposed therein in an includes non-collapsible region 12, by leaning on for the first hollowed out area 41
The side 510 of nearly fold domain 11 is arranged in another includes non-collapsible region 12.It is understood that by the glue-line of fold domain 11
All removals the aggregation of glue-line or thinned problem can occur during bending repeatedly to avoid fold domain 11.
In embodiments of the present invention, the quantity of the first hollowed out area 41 can also be set at least two, and, make at least
Two the first hollowed out areas 41 are located at the opposite two sides on the x in a first direction of fold domain 11.Illustratively, as schemed
Shown in 15, Figure 15 is the schematic cross-section of another display module under unfolded state provided in an embodiment of the present invention,
In, section with by the plane of first direction x and third direction z it is parallel, using the quantity of the first hollowed out area 41 be two as
Signal, one of them the first hollowed out area 41 are located at the juncture area of fold domain 11 and one of includes non-collapsible region 12, separately
One the first hollowed out area 41 is located at the juncture area of fold domain 11 and another includes non-collapsible region 12, non-to improve the two
The aggregation or thinned problem for the glue-line that the juncture area of fold domain 12 and fold domain 11 is likely to occur.Illustratively, such as
Shown in Figure 15, wherein in a first direction on x, the interval d1 between two the first hollowed out areas 41 is greater than zero.
Optionally, it can set equal for the shape and size of above-mentioned two first hollowed out area 41, and enable two
One hollowed out area 41 is equidistant with the center line 6 of fold domain 11, that is to say, that is set to off the first hollowed out area 41
Center line 6 in fold domain 11 is symmetrical, so that the two first hollowed out areas 41 are to positioned at above-mentioned two includes non-collapsible region 12
The improvement of aggregation or thinned problem with the glue-line of the juncture area of fold domain 11 reaches unanimity.Wherein, fold domain
11 center line 6 is by the center of fold domain 11 and along the straight line of third direction z extension.
It should be noted that when multiple first hollowed out areas 41 are arranged, it can leaning on multiple first hollowed out areas 41
The side 510 of nearly fold domain 11 is set as overlapping with fold domain 11 and the line of demarcation of includes non-collapsible region 12 10, and such situation is
For shown in Figure 15.It is of course also possible to as it was noted above, multiple first hollowed out areas 41 be set in the way of in Fig. 9
It sets, that is, by the side 410 of the close includes non-collapsible region 12 of multiple first hollowed out areas 41 and fold domain 11 and includes non-collapsible region 12
Line of demarcation 10 be set as overlapping.Alternatively, multiple first hollowed out areas 41 can also be respectively provided with according to mode shown in Fig. 3
Being includes the part Chong Die with fold domain 11 and the part Chong Die with includes non-collapsible region 12, and enables fold domain 11 and non-folding
The line of demarcation 10 in folded region 12 passes through the inside of this multiple first hollowed out area 41 along the extending direction in line of demarcation 10.
As shown in figure 16, Figure 16 is another schematic cross-section of Fig. 2 along DD ', wherein hollowed out area 40 further includes second
Hollowed out area 42, the second hollowed out area 42 are located at fold domain 11, and in a first direction on x, the second hollowed out area 42 and first
Interval d2 between hollowed out area 41 is greater than zero.The deformation and shape on the one hand made by glue-line 4 is arranged such in the embodiment of the present invention
Become the aggregation for restoring relatively slow caused glue-line 4 or thinned problem is preferably solved；On the other hand, compared to by folding region
The technical solution that the glue-line in domain 11 all removes, this programme retain a part of glue-line in fold domain 11, increase functional layer 3
Adhesion strength between flexible display panels 2 keeps the adherency of each layer in display module stronger.
As shown in Figure 17 and Figure 18, Figure 17 is another display mould under unfolded state provided in an embodiment of the present invention
The schematic top plan view of group, Figure 18 are a kind of schematic cross-section of the Figure 17 along FF ', wherein hollowed out area also the second hollowed out area 42,
Second hollowed out area 42 is at least partially disposed at fold domain 11.Also, folding shaft 110 passes through the second hollowed out area 42.Due to folding
Stress of the glue-line 4 of 110 position of folding shaft in folded region 11 in bending is maximum, and therefore, the glue-line 4 at the position exists
Deformation degree when bending is also maximum.To restore in display module to unfolded state, the non-recovery extent of deformation is also maximum, because
This, the embodiment of the present invention enables folding of second hollowed out area 42 across fold domain 11 by the second hollowed out area 42 of setting
Axis 110 is further increased with improving the aggregation or thinned problem of the glue-line 4 being located at 110 position of folding shaft of fold domain 11
The planarization of glue-line 4.
Illustratively, as shown in figure 19, Figure 19 is another schematic cross-section of the Figure 17 along FF ', wherein the second vacancy section
Domain 42 can also extend to includes non-collapsible region 12 by fold domain 11.
Illustratively, multilayer can be set by the quantity of above-mentioned glue-line 4, as shown in figure 20, Figure 20 is Fig. 2 along DD's '
Another schematic cross-section, wherein when by glue-line 4 be set as include the first glue-line 51 and the second glue-line 52 when, along perpendicular to soft
Property display panel direction, that is, along third direction z, the distance of the first glue-line 51 to flexible display panels is D1, the second glue-line 52
Distance to flexible display panels is D2, and D1 > D2；Wherein, it is that the distance of the first glue-line 51 to flexible display panels, which is D1,
To the distance of flexible display panels, the second glue-line 52 arrives flexible display panels on one surface of the glue-line 51 far from flexible display panels
Distance D2 is distance of second surface of the glue-line 52 far from flexible display panels to flexible display panels, and the embodiment of the present invention is by the
The area S1 of the hollowed out area 40 of one glue-line 51 is set greater than area S2, the S1 > S2 of the hollowed out area 40 of the second glue-line 52.
Wherein, the area of hollowed out area 40 is the area of the orthographic projection of plane where flexible display panels of hollowed out area 40.
It is understood that deformable object is when bending deformation, there are a neutral lines, along bending direction, neutral line
For length during bending as the length under unfolded state, i.e. the folding s tress of neutral line in the process of bending is minimum.
Positioned at neutral line convex side film layer in bending by tensile stress, length under unfolded state compared to increasing.In being located at
Property layer recess side film layer in bending by compression, length under unfolded state compared to reducing.And with neutral line
The compression or tensile stress that the closer film layer of distance is subject to are smaller.
Therefore, when making display module, it will usually, will be flexible by the adjustment of the thickness and elasticity modulus of each film layer
The neutral line position of display module is arranged in display panel, so that flexible display panels are in being folded over display module
The stress being subject in journey is as small as possible.The embodiment of the present invention is by being respectively provided with vacancy section in the first glue-line 51 and the second glue-line 52
Domain 40 can not only improve the planarization of the first glue-line 51 and the second glue-line 52 after multiple bending operation.Moreover, first
The setting of hollowed out area 40 can also alleviate the first glue-line 51 in glue-line 51 and the second glue-line 52 and the second glue-line 52 is being folded over
The stress generated in journey.In addition to this, the embodiment of the present invention is by adjusting hollowed out area in the first glue-line 51 and the second glue-line 52
40 area keeps the area of the hollowed out area 40 at a distance from flexible display panels in biggish first glue-line 51 larger, make with
The area of the hollowed out area 40 of lesser second glue-line 52 of the distance of flexible display panels is smaller, being capable of balanced each 4 institute of glue-line
The folding s tress being subject to is conducive to the bent performance for improving the display module.
Illustratively, as shown in figure 20, the phase in flexible display panels 2 can be set in the first glue-line 51 and the second glue-line 52
It is ipsilateral.
It should be noted that when being respectively provided with hollowed out area 40 in the first glue-line 51 and the second glue-line 52, it can be more by this
A hollowed out area 40 is disposed as including the part Chong Die with fold domain 11 and the part Chong Die with includes non-collapsible region 12, and
The extending direction of fold domain 11 and the line of demarcation of includes non-collapsible region 12 10 along line of demarcation 10 is enabled to pass through this multiple hollowed out area 40
Inside, such situation is shown in Figure 20.It is of course also possible to as it was noted above, by multiple hollowed out areas 40 according in Fig. 9
Mode be configured, that is, by the side 410 of the close includes non-collapsible region 12 of multiple hollowed out areas 40 and fold domain 11 and non-folding
The line of demarcation 10 in folded region 12 is set as overlapping.Alternatively, can also be according to mode shown in Fig. 10, by multiple hollowed out areas 40
It is disposed as close to the side 510 of fold domain 11 overlapping with fold domain 11 and the line of demarcation of includes non-collapsible region 12 10.
Optionally, as shown in figure 21, Figure 21 be it is provided in an embodiment of the present invention another be in the display under unfolded state
The schematic cross-section of mould group, wherein cross-wise direction is parallel to the plane by first direction x and third direction z, of the invention real
It applies in example, also the hollowed out area 40 for being located at the first glue-line 51 and the second glue-line 52 can be disposed as including above-mentioned first vacancy section
Domain 41 and the second hollowed out area 42, and it is greater than the second glue-line 52 to flexibility in the distance D1 of the first glue-line 51 to flexible display panels
When the distance D2 of display panel, area S11 and the second hollowed out area 42 of the first hollowed out area 41 of the first glue-line 51 will be located at
The sum of area S12, be set greater than the area S21 positioned at the first hollowed out area 41 of the second glue-line 52 and the second hollowed out area
The sum of 42 area S22.Wherein, the area of the first hollowed out area 41 and the second hollowed out area 42 is its each comfortable Flexible Displays face
The area of the orthographic projection of plane where plate.
Illustratively, as shown in figure 21, the first hollowed out area 41 and the second vacancy section of the first glue-line 51 can will be also located at
The area of the first glue-line 51 between domain 42, is set smaller than and engraves positioned at the first hollowed out area 41 of the second glue-line 52 and second
The area of the second glue-line 52 between empty region 42.At this point, being set by the shape and thickness of the first glue-line 51 and the second glue-line 52
It is set in identical situation, can enable between the first hollowed out area 41 and the second hollowed out area 42 of the first glue-line 51
It is spaced d71, less than the interval d72 between the first hollowed out area 41 and the second hollowed out area 42 for being located at the second glue-line 52, also
It is to say, by the small as far as possible of the setting of the area by the first glue-line 51 of tensile stress, to reduce tensile stress to the damage of the first glue-line 51
Wound.
When by the first glue-line 51 and the second glue-line 52 be arranged in flexible display panels 2 it is not ipsilateral when, in conjunction with Figure 22 and figure
Shown in 23, Figure 22 is another schematic cross-section of Fig. 2 along DD ', and Figure 23 is the section after the bending of display module shown in Figure 22
Schematic diagram, wherein the first glue-line 51 is located at the first side 21 of flexible display panels, and the second glue-line 52 is located at flexible display panels
Second side 22.As it was noted above, when display module is bent, the film layer positioned at the convex side of neutral line will be by bending
To tensile stress, the film layer positioned at the recess side of neutral line will be by compression in bending.When display module is towards by the first side
When 21 directions for being directed toward second side 22 are bent, as shown in figure 23, wherein the first glue-line 51 is in the protrusion of flexible display panels 2
Side, the second glue-line 52 recess side in flexible display panels 2 in bending, the embodiment of the present invention is by enabling the first glue-line 51 arrive
The distance D1 of flexible display panels and the distance D2 of the second glue-line 52 to flexible display panels are equal, D1=D2；And enable the first glue
The area S1, area S2, the S1 > S2 of the hollowed out area 40 of the second glue-line 52 of the hollowed out area 40 of layer 51.Compared to compression pair
For being damaged caused by glue-line, tensile stress damaged caused by glue-line it is bigger, therefore, in embodiments of the present invention, by will be
The smaller of the area setting of the hollowed out area 40 in the second glue-line 52 of compression is born in bending process, will bear tensile stress
The area setting of hollowed out area 40 in first glue-line 51 it is larger, it is suffered in the process of bending more to alleviate the first glue-line 51
Tensile stress is conducive to the bent performance for improving the display module.
It should be noted that when display module is bent towards the direction for being directed toward second side 22 by the first side 21, Flexible Displays
First side 21 of panel can be display surface, be also possible to non-display face.
The first glue-line 51 will be located at and the not ipsilateral of flexible display panels 2 is arranged in the second glue-line 52, for example, by
One glue-line 51 is set to the first side 21 of display panel, and the second glue-line 52 is set to second side 22 of display panel, and by position
It is disposed as including above-mentioned first hollowed out area 41 and the second hollow out in the hollowed out area 40 of the first glue-line 51 and the second glue-line 52
Region 42, and set the distance D1 of the first glue-line 51 to flexible display panels to arrive flexible display panels with the second glue-line 52
When distance D2 is equal, as shown in figure 24, Figure 24 be it is provided in an embodiment of the present invention another be in the display mould under unfolded state
The schematic cross-section of group can will be located at the when bending display module towards the direction for being directed toward second side 22 by the first side 21
The area of the first glue-line 51 between the first hollowed out area 41 and the second hollowed out area 42 of one glue-line 51, is set smaller than position
The area of the second glue-line 52 between the first hollowed out area 41 and the second hollowed out area 42 of the second glue-line 52.By the first glue
The shape and thickness of layer 51 and the second glue-line 52 are set as in identical situation, can enable the first hollow out positioned at the first glue-line 51
Interval d81 between region 41 and the second hollowed out area 42, less than the first hollowed out area 41 for being located at the second glue-line 52 and the
Interval d82 between two hollowed out areas 42, that is to say, that as far as possible by the setting of the area by the first glue-line 51 of tensile stress
It is small, to reduce damage of the tensile stress to the first glue-line 51.
The case where when bending display module towards the direction for being directed toward the first side 21 by second side 22, is similar, can be with
It is adjusted according to identical principle, details are not described herein.
As shown in figure 25, Figure 25 is bowing for another display module being under unfolded state provided in an embodiment of the present invention
Depending on schematic diagram, wherein the embodiment of the present invention is by by wherein at least one for two hollowed out areas 40 are arranged in glue-line 4
Hollowed out area 40 is set as on second direction y the glue-line at the position assembled or be thinned capable of will likely occur through glue-line 4
4 all removals, make display module that can further increase the flatness of flat glue-line 4 in bending process repeatedly.
Optionally, when at least two hollowed out areas 40 is arranged in glue-line 4, as shown in figure 26, Figure 26 is that the present invention is real
Another for applying example offer is in the schematic top plan view of the display module under unfolded state, wherein the quantity of hollowed out area 40 is
At least two, y is alternatively arranged in a second direction at least two hollowed out areas 40, is arranged such and is likely to occur in reducing glue-line 4
Aggregation or thinned problem while, additionally it is possible to increase the bond area between glue-line 4 and adjacent functional layer 3, be conducive to mention
The bonding force of high glue-line 4 and functional layer 3.
Optionally, above-mentioned functional layer includes one of layer of polarizer, touch control layer, supporting layer, protective layer, cover board or more
Kind.It is understood that glue-line is used for adjacent independent film layer is adhered to each other together, the glue-line of the embodiment of the present invention can be with
It, can also be between two adjacent functional layers between functional layer and display panel.
Illustratively, the elastic modulus E of above-mentioned glue-line 4 meets 0 < E < 107Pa, so that glue-line 4 can be adapted to preferably
The deformation that display module generates in the process of bending, the deformation between glue-line 4 and adjacent functional layer 3 in deformation process is as far as possible
It reaches unanimity, and is preferably bonded in bending and Recovery Process between glue-line 4 and adjacent functional layer 3.
The embodiment of the invention also provides a kind of display devices, and as shown in figure 27, Figure 27 is provided in an embodiment of the present invention
A kind of schematic diagram of display device, the display device include above-mentioned display module 100, wherein the specific knot of display module 100
Structure is described in detail in the above-described embodiments, and details are not described herein again.Certainly, display device shown in Figure 27 is only
Schematically illustrate, which can be any such as mobile phone, tablet computer, laptop, electric paper book or television set
Electronic equipment having a display function.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (15)
1. a kind of display module, which is characterized in that including at least one fold domain and at least two includes non-collapsible regions, the folding
Folded region and the includes non-collapsible region are arranged along first direction, and the fold domain is located at two adjacent non-collapsible districts
Between domain；
Flexible display panels, the flexible display panels include opposite the first side and second side；
At least one layer of functional layer, at least one layer functional layer are located at least in the first side of the flexible display panels；
At least one layer of glue-line, at least one layer glue-line are located at the close flexible display panels of at least one layer of functional layer
Side, alternatively, at least one layer glue-line is located at the side of the separate flexible display panels of the functional layer；
The glue-line includes hollowed out area；The hollowed out area includes at least the first hollowed out area, the first hollowed out area position
Juncture area in the fold domain and the includes non-collapsible region；
When the display module folds, the fold domain extends in a second direction along bending shaft, the folding shaft is folded, institute
Second direction is stated to intersect with the first direction.
2. display module according to claim 1, which is characterized in that first hollowed out area is located at the folding region
Domain, and the side close to the includes non-collapsible region of first hollowed out area and the fold domain and the includes non-collapsible region
Line of demarcation is overlapping；Alternatively,
First hollowed out area is located at the includes non-collapsible region, and first hollowed out area close to the fold domain
Side and the fold domain and the line of demarcation of the includes non-collapsible region are overlapping；Alternatively,
First hollowed out area includes the part Chong Die with the fold domain and the portion Chong Die with the includes non-collapsible region
Point, extending direction of the line of demarcation of the fold domain and the includes non-collapsible region along the line of demarcation passes through described first
The inside of hollowed out area.
3. display module according to claim 1, which is characterized in that the quantity of first hollowed out area is at least two
A, at least two first hollowed out area is located at opposite two in said first direction of the fold domain
Side, in said first direction, the interval between at least two first hollowed out area are greater than zero.
4. display module according to claim 1, which is characterized in that the hollowed out area further includes the second hollowed out area,
Second hollowed out area is located at the fold domain, and in said first direction, second hollowed out area and described the
Interval between one hollowed out area is greater than zero.
5. display module according to claim 4, which is characterized in that the folding shaft of the fold domain passes through described second
Hollowed out area.
6. display module according to claim 4, which is characterized in that prolonged by the fold domain second hollowed out area
Extend to the includes non-collapsible region.
7. display module according to claim 1, which is characterized in that the glue-line includes the first glue-line and the second glue-line,
Along the direction perpendicular to the flexible display panels, the distance of first glue-line to the flexible display panels is D1, described
The distance of second glue-line to the flexible display panels is D2, and D1 > D2；
The area of the hollowed out area of first glue-line is S1, and the area of the hollowed out area of second glue-line is
S2, S1 > S2.
8. display module according to claim 1, which is characterized in that when the display module folds, the display mould
Group is bent towards the direction for being directed toward described second side by first side；
The glue-line includes at least the first glue-line and the second glue-line, and first glue-line is located at the described of the flexible display panels
First side, second glue-line are located at described second side of the flexible display panels；First glue-line is aobvious to the flexibility
The distance for showing panel is D1, and the distance of second glue-line to the flexible display panels is D2, and D1=D2；
The area of the hollowed out area of first glue-line is S1, and the area of the hollowed out area of second glue-line is
S2, S1 > S2.
9. display module according to claim 1, which is characterized in that first side is the backlight side of display panel.
10. display module according to claim 1, which is characterized in that at least one described hollowed out area is described second
Side extends upward through the glue-line.
11. display module according to claim 1, which is characterized in that the quantity of the hollowed out area is at least two, institute
At least two hollowed out areas are stated to be alternatively arranged along the second direction.
12. display module according to claim 1, which is characterized in that first side is the flexible display panels
Light emission side, the hollowed out area potting resin of the glue-line.
13. display module according to claim 1, which is characterized in that the functional layer include layer of polarizer, touch control layer,
One of supporting layer, protective layer, cover board are a variety of.
14. display module according to claim 1, which is characterized in that
The elastic modulus E of the glue-line meets 0 < E < 107 Pa。
15. a kind of display device, which is characterized in that including the described in any item display modules of claim 1-14.
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| CN201910571995.XA CN110189638B (en) | 2019-06-28 | 2019-06-28 | Display module and display device |
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| CN201910571995.XA CN110189638B (en) | 2019-06-28 | 2019-06-28 | Display module and display device |
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| CN110189638B CN110189638B (en) | 2022-01-28 |
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| CN113066376A (en) * | 2021-03-26 | 2021-07-02 | 京东方科技集团股份有限公司 | A apron, collapsible display module assembly and display device for collapsible display module assembly |
| WO2022236904A1 (en) * | 2021-05-08 | 2022-11-17 | 武汉华星光电技术有限公司 | Display panel and manufacturing method therefor |
| WO2023030313A1 (en) * | 2021-09-02 | 2023-03-09 | 荣耀终端有限公司 | Support assembly, display module and electronic apparatus |
| CN113724631A (en) * | 2021-09-02 | 2021-11-30 | 荣耀终端有限公司 | Supporting component, display module and electronic equipment |
| CN114170901B (en) * | 2021-11-30 | 2024-04-16 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN114170901A (en) * | 2021-11-30 | 2022-03-11 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN114360382A (en) * | 2022-01-11 | 2022-04-15 | 广州国显科技有限公司 | Flexible display assembly, flexible display device and flexible display equipment |
| CN114360382B (en) * | 2022-01-11 | 2024-03-26 | 广州国显科技有限公司 | Flexible display assembly, flexible display device and flexible display equipment |
| CN114927063A (en) * | 2022-05-27 | 2022-08-19 | 武汉华星光电半导体显示技术有限公司 | Folding display device |
| WO2024065316A1 (en) * | 2022-09-28 | 2024-04-04 | 京东方科技集团股份有限公司 | Display module and display apparatus |
| WO2024082494A1 (en) * | 2022-10-18 | 2024-04-25 | 武汉华星光电半导体显示技术有限公司 | Display apparatus and mobile terminal |
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