CN206516661U - Flexible display substrates, flexible display apparatus and carrier substrate - Google Patents
Flexible display substrates, flexible display apparatus and carrier substrate Download PDFInfo
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- CN206516661U CN206516661U CN201720210319.6U CN201720210319U CN206516661U CN 206516661 U CN206516661 U CN 206516661U CN 201720210319 U CN201720210319 U CN 201720210319U CN 206516661 U CN206516661 U CN 206516661U
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Abstract
The utility model discloses a kind of flexible display substrates, including flexible substrates, in the bending region of the flexible substrates, at least one groove is provided with；The opening direction of the groove is opposite with the light direction of the flexible display substrates.The invention also discloses a kind of flexible display apparatus and carrier substrate.Flexible display substrates, flexible display apparatus and carrier substrate that the utility model is provided, it is possible to reduce damage of the stress to device on flexible display substrates in itself during bending.
Description
Technical field
The utility model is related to display technology field, particularly relates to a kind of flexible display substrates, flexible display apparatus and load
Structure base board.
Background technology
Organic Light Emitting Diode (Organic Light Emitting Diode, referred to as：OLED) there is self luminous spy
Property, when have electric current by when, OLED will light.With the rapid advances of Display Technique, partly leading for display device core is used as
Body Element Technology has also obtained tremendous progress therewith.For existing display device, Organic Light Emitting Diode conduct
A kind of current mode luminescent device, because of its self-luminous, quick response, wide viewing angle and can be produced on the first-class spy of flexible substrate
Put and be applied to more and more among high-performance display field.
Organic EL display panel (Organic Electro luminesecent Display), by its low work(
Consumption, high color saturation, wide viewing angle, minimal thickness, the excellent properties such as flexibility can be realized, be increasingly becoming the main flow of display field, can
To be widely used in the end products such as smart mobile phone, tablet personal computer, TV.OLED display visible angle is big, and can show
Write and save electric energy, therefore OLED display possesses many liquid crystal displays (Liquid Crystal Display, abbreviation：
LCD) incomparable advantage is more and more extensive in the application of display technology field.And the OLED productions made on a flexible substrate
Product have more wide application and prospect, can be made into it is various can it is soft around special-shaped product.
Flexible LTPS (low temperature polycrystalline silicon) gradually emerges in the recent period, to better meet the demand in market as its main feature,
In its speciality, its pliability is maximum bright spot.But, during the utility model is realized, inventor has found existing
There is problems with technology：
In flexible technology, display device is typically manufactured on a flexible substrate.At this stage, device is still employed largely
Inorganic process.Because the device that flexible substrates surface makes uses a large amount of inorganic process, in frequent bending, bending region due to
Influenceed by tow sides stress, its inorganic layer is easier to fracture, so as to cause the variation of device function or even damage.In device
After part function is deteriorated, display effect and life of product then can be by strong influences.
Utility model content
In view of this, the purpose of this utility model is to propose that a kind of flexible display substrates and its manufacture method, flexibility are aobvious
Showing device, carrier substrate, it is possible to reduce damage of the stress to device in itself during bending.
The flexible display substrates provided based on above-mentioned purpose the utility model, including flexible substrates, in the flexible substrates
Bending region, be provided with least one groove；The opening direction and the light direction phase of the flexible display substrates of the groove
Instead.
Optionally, the depth of the groove in the middle part of bending region is more than the depth of the groove in bending edges of regions.
Optionally, the scope of the depth of the groove is
Optionally, at least one groove and the folding line in the bending region are formed as 0~45 ° of angle.
Optionally, at least one groove include inner space be part cylindrical groove, the part cylindrical it is recessed
Groove is arranged on the folding line in the bending region and the length direction of the groove of the part cylindrical is parallel with the folding line.
Optionally, the cross sectional shape of the groove be square, rectangle, semicircle, arch, triangle, it is trapezoidal in one
Plant or a variety of.
Optionally, the inner space of the groove is shaped as part spherical, part cylindrical, polygon prism shape, irregular shape
One or more in shape.
Optionally, the groove number is multiple, and multiple groove types turn into the tread contour shape of tire.
Second aspect of the present utility model is there is provided a kind of flexible display apparatus, including as above any described flexibility
Display base plate.
There is provided a kind of load for being used to manufacture as above any flexible display substrates for 3rd aspect of the present utility model
Structure base board, it is characterised in that projection corresponding with the groove is provided with the carrier substrate.
From the above it can be seen that the flexible display substrates, flexible display apparatus, carrier that the utility model is provided
Substrate, by setting groove in the corresponding flexible substrates in bending region so that when the bending region of flexible display substrates is curved
During folding, the stress produced herein can to a certain extent be disperseed by the design of groove, make other on bending region
Device layer it is not easy to crack or fracture, when can preferably reduce bending stress to flexible display substrates bending region on other
The damage of device layer, so as to improve reliability and the life-span of device, and then improves the overall performance of flexible display substrates.
Brief description of the drawings
The elevational schematic view of flexible substrates in the one embodiment for the flexible display substrates that Fig. 1 provides for the utility model；
Fig. 2 be Fig. 1 in flexible substrates one embodiment location A enlarged diagram；
Fig. 3 be Fig. 2 in flexible substrates B-B directions schematic cross-sectional view；
Fig. 4 be Fig. 1 in flexible substrates second embodiment location A enlarged diagram；
Fig. 5 be Fig. 4 in flexible substrates C-C directions schematic cross-sectional view；
Fig. 6 be Fig. 1 in flexible substrates the 3rd embodiment location A enlarged diagram；
Fig. 7 be Fig. 1 in flexible substrates the 4th embodiment location A enlarged diagram；
Fig. 8 sinks on the glass substrate in one embodiment for the manufacture method of flexible display substrates of the present utility model
The structural representation of product film；
The carrier substrate that Fig. 9 is formed in one embodiment for the manufacture method of flexible display substrates of the present utility model
Structural representation；
Figure 10 for flexible display substrates of the present utility model manufacture method one embodiment on carrier substrate
The structural representation of flexible substrate material；
Figure 11 for flexible display substrates of the present utility model manufacture method second embodiment on carrier substrate
The structural representation of flexible substrate material；
Figure 12 is one embodiment of the manufacture method of flexible display substrates of the present utility model and/or second implementation
The structural representation of the flexible display panels (eliminating other device layers in addition to flexible substrates) formed in example；
Figure 13 provides a kind of one embodiment for being used to manufacture the carrier substrate of flexible display substrates for the utility model
Structural representation；
Figure 14 is the schematic flow sheet of one embodiment of the manufacture method of flexible display substrates of the present utility model；
Figure 15 shows for the flow of second embodiment of the method for the manufacture method of flexible display substrates of the present utility model
It is intended to.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, below in conjunction with specific embodiment, and
Referring to the drawings, the utility model is further described.
It should be noted that all statements for using " first " and " second " are for area in the utility model embodiment
Be divided to the entity of two same names non-equal or the parameter of non-equal, it is seen that " first " " second " only for statement convenience,
The restriction to the utility model embodiment is should not be construed as, subsequent embodiment no longer illustrates one by one to this.
Based on object defined above, stress is to device when one side of the present utility model can reduce bending there is provided one kind
One embodiment of the flexible display substrates of the damage of itself.The one of the flexible display substrates that Fig. 1 provides for the utility model
The elevational schematic view of flexible substrates in individual embodiment, Fig. 2 be Fig. 1 in flexible substrates one embodiment putting in location A
Big schematic diagram, Fig. 3 is schematic cross-sectional view of the flexible substrates in Fig. 2 in B-B directions.
As Figure 1-3, the flexible display substrates, including flexible substrates 10, the flexible substrates 10 include non-bending
Region 20 and bending region 30；In the bending region 30 of the flexible substrates 10,1 groove 31 is provided with；The groove 31
Opening direction is opposite with the light direction (direction of arrow in reference picture 3) of the flexible display substrates so that the Flexible Displays
Other device layers can be laid on surface on the light direction of substrate.It is curved for the distribution of the bending stress in bending region
The outer ring (position away from bending core) of bent portions can apply corresponding to inner ring (close to the position of bending core)
Pressure so that the actual curvature radius of inner ring diminishes.It is curved after the flexible substrates in bending region make corresponding groove
The pressure of the outer ring of the flexible substrates near groove in the domain of folding area can be by grooves disperse, so as to reduce the pressure for inner ring.
In the case of the radius of curvature in bending region is less, the pressure of flexible substrates outer ring can be larger by groove for the influence of inner ring
It is big to reduce, so as to reduce extruding force of the inner round portion to film layer each thereon, its bending damage is reduced, device bend resistance energy is improved
Power.
From above-described embodiment as can be seen that the utility model embodiment provide the flexible display substrates, by curved
Groove is set in the corresponding flexible substrates in folding area domain so that, can be by this when the bending region of flexible display substrates is bent
The stress that place is produced is disperseed to a certain extent by the design of groove, makes other device layers on bending region not easy to crack
Or fracture, damage of the stress to other device layers on the bending region of flexible display substrates when can preferably reduce bending,
So as to improve reliability and the life-span of device, and then improve the overall performance of flexible display substrates.In addition, the utility model
The flexible display substrates that embodiment is provided, can also preferably reduce the deformation when subsequent process is aligned and binds technique
And skew, so as to improve the yield of subsequent process.
The quantity of the groove 31 set in above-described embodiment in entirely bending region 30 is 1, although to illustrate
Mode illustrates its set location, but it is recognised that can all set the groove 31 in the optional position in bending region,
Position shown in accompanying drawing is not limited solely in the present embodiment.
It is pointed out that the flexible display substrates are only referred to improved flexible substrates in the above-described embodiments, and
Without reference to other necessary device layers, but do not represent other necessary device layers of the flexible display substrates and be not included in
In the utility model embodiment, those skilled in the art can easily acknowledge that, be made necessary to flexible display substrates
The design of other device layers, therefore no longer repeated herein.
In some optional embodiments, the scope of the depth of the groove 31 isUsing this depth
Spend the groove of scope, damage of the stress to device when can preferably reduce bending.
In some optional embodiments, the width in the bending region 30 is about 1.0mm~1.5mm, now, and described
The bending corresponding flexible substrates in region 30 (being usually PI substrates) need not simultaneously contribute to profile pattern, therefore, groove 31
Design do not interfere with surface smoothness；Also, optional, the bending region 30 is easily frequent in flexible display substrates
Bending causes the less region of radius of curvature because of bending, and stress is carried out in such region and is disperseed, can be more preferable
Improve reliability and the life-span of device in ground.
In some optional embodiments, the depth of the groove 31 can change, wherein, in bending region
Depth of the depth in portion compared with deep close to bending region fringe region is shallower, i.e., the center of the groove 31 shown in Fig. 2 is prolonged to both sides
On the direction stretched, the depth of groove 31 is gradually reduced, now, and the cross sectional shape of groove 31 can not be the rectangle in Fig. 3, but
Semicircle, half elliptic, triangle, arch or trapezoidal.It is such to be advantageous in that, it is possible to use change in depth makes groove not
The scattered intensity of stress is gradually changed with position, more reasonably dispersion effect is reached.
In some optional embodiments, the shape of the inner space of the groove 31 is in addition to shape shown in Fig. 2, also
Can be part spherical (such as hemispherical, semi-ellipsoid shape, 1/3 spherical, 1/3 ellipsoid), part cylindrical (such as semicolumn
Shape, semiellipse column, 1/3 or 1/4 cylindric, 1/3 or 1/4 elliptic cylindrical shape etc.), polygon prism shape (such as triangular prism shape, quadrangular
Shape etc.), the one or more in irregular shape.The groove 31 of inner space with these shapes, can be played point
The effect of stress is dissipated, protection domain of the present utility model should be belonged to.
In some optional embodiments, as shown in Figures 2 and 3, the groove 31 is that inner space is that cuboid is (more
The one of which of prism) groove, the groove 31 is arranged on the folding line 32 in the bending region 30 and the groove 31
Length direction is parallel with the folding line 32.Optionally, flexible display substrates arrangement it is leaded wait device non-display area
The bending region 30 is set in the region between viewing area.When making flexible display apparatus, it is necessary to will complete
Flexible display substrates edge along bending region 30 bent so that arrangement it is leaded grade device non-display area nuzzle
To realize that frame is encapsulated in frame, the folding line 32 can then refer to that bending region 30 is bent the minimum center of rear radius of curvature
Line position.Stress is maximum herein, and groove 31 is arranged on folding line 32, then can at utmost dispersive stress, preferably reduce curved
Damage of the stress to device when bent.It will, of course, be appreciated that when, folding line 32 is set along the center line in bending region 30 in accompanying drawing
, in some cases, if the position of folding line 32 is offset, the position of the groove 31 can also correspondingly be offset, therefore should not
Protection domain of the present utility model is limited to the position shown in the accompanying drawing of the present embodiment.
In addition, in some optional embodiments, the groove 31 can be set to it is multiple, for example, along folding line 32
Direction is first-class to be disposed in whole bending region 30, that is, the bending region in Fig. 1 above and below magnification region A
Groove 31 as shown in Figure 2 can be set in 30.Optionally, these grooves 31 can be on same straight line,
It can not be on the same line, but intermesh.These embodiments, can preferably realize that stress disperses
Effect.
The utility model additionally provides a kind of Flexible Displays base of damage of stress when can reduce bending to device in itself
Second embodiment of plate.Flexible substrates faces upward in the one embodiment for the flexible display substrates that Fig. 1 provides for the utility model
Depending on schematic diagram, Fig. 4 is enlarged diagram of second embodiment in location A of the flexible substrates in Fig. 1, and Fig. 5 is soft in Fig. 4
Schematic cross-sectional view of the property substrate in C-C directions.
As shown in Figure 1, Figure 4 and Figure 5, the flexible display substrates, including flexible substrates 10, in the flexible substrates 10
Region 30 is bent, 3 kinds of grooves are provided with --- central recess 41, left groove 42 and right groove 43；The central recess 41 and folding
Trace 44 is parallel, and the left groove 42 is with folding line 44 in an angle for being less than 45 °, and the right groove 43 is less than with folding line 44 in one
45 ° of angle, and left groove 42 is opposite with the incline direction of right groove 43.Such central recess 41, left groove 42 and the right side are recessed
The arrangement mode of groove 43 so that the larger folding s tress being upwardly formed on the edge parallel with folding line 44 can preferably disperse；
And due to the presence of inclined left groove 42 and right groove 43 so that it is vertical with folding line 44 along can also have upwards it is certain should
Power is disperseed, so as to which stress is preferably disperseed away from all directions.The central recess 41, left groove 42 and right groove
43 opening direction is opposite with the light direction (direction of arrow in reference picture 5) of the flexible display substrates so that described soft
Other device layers can be laid on surface on the light direction of property display base plate.
From above-described embodiment as can be seen that the utility model embodiment provide the flexible display substrates, by curved
Three kinds of grooves (central recess 41, left groove 42 and right groove 43) are set in the corresponding flexible substrates in folding area domain so that work as flexibility
When the bending region of display base plate is bent, the stress produced herein can be carried out by the design of groove preferably disperseing,
Make other device layers on bending region not easy to crack or be broken, stress is to flexible display substrates when can preferably reduce bending
Bending region on other device layers damage, so as to improve reliability and the life-span of device, and then improve flexible aobvious
Show the overall performance of substrate.In addition, the flexible display substrates that the utility model embodiment is provided, can also preferably be reduced
Deformation and skew when subsequent process is aligned and binds technique, so as to improve the yield of subsequent process.
Three kinds of groove its set-up modes in above-described embodiment can be：
It is respectively in the quantity of the whole central recess 41, left groove 42 and the right groove 43 for bending and being set in region 30
1, although illustrate the magnification region A that its set location is in Fig. 1 by way of example, but it is recognised that in bent area
The optional position in domain can all set such 3 grooves, be not limited solely in the present embodiment the position shown in accompanying drawing
Put.
Meanwhile, it is similar, if with 1 central recess 41,1 left groove 42 and 1 right groove 43 for 1 group, it is described
The variant of embodiment can also be set 2 groups or more groups, and every group of groove between spacing can be it is equal or
What person did not waited.
In addition, except the arrangement mode shown in Fig. 4, it is relative between central recess 41, left groove 42 and right groove 43
Relation is also to change, for example, central recess 41 and the reversing of position of left groove 42, or, central recess 41 and right groove
43 reversing of position, or, central recess 41, left groove 42 and right groove 43 are all shifted to install from each other.These
Variant, which all should be worked as, belongs to protection domain of the present utility model.
It is pointed out that the flexible display substrates are only referred to improved flexible substrates in the above-described embodiments, and
Without reference to other necessary device layers, but do not represent other necessary device layers of the flexible display substrates and be not included in
In the utility model embodiment, those skilled in the art can easily acknowledge that, be made necessary to flexible display substrates
The design of other device layers, therefore no longer repeated herein.
In some optional embodiments, as shown in Figure 4 and Figure 5, the central recess 41, left groove 42 and right groove 43
For the groove that inner space is cuboid (one of which of polygon prism), the central recess 41 is arranged on the bending region
On 30 folding line 44 and the length direction of the central recess 41 is parallel with the folding line 44.The left groove 42 and right groove 43
Then it is symmetricly set on the both sides of central recess 41.Optionally, show in the non-of the device such as leaded of arranging of flexible display substrates
Show and the bending region 30 is set in the region between region and viewing area.When making flexible display apparatus, it is necessary to will system
The flexible display substrates edge for making to complete is bent along bending region 30, so that the non-display area for the device such as leaded of arranging
Domain is nuzzled to realize that frame is encapsulated in frame, and it is minimum that the folding line 44 can then refer to that bending region 30 is bent rear radius of curvature
Position of center line.Stress is maximum herein, and central recess 41 is arranged on folding line 44, then can at utmost dispersive stress, and
The left groove 42 and the further dispersive stress of the energy of right groove 43 of both sides, so that damage of the stress to device when preferably reducing bending
Wound.It will, of course, be appreciated that when, folding line 44 is set along the center line in bending region 30 in accompanying drawing, in some cases, if
The position of folding line 44 is offset, and the position of the central recess 41 can also correspondingly be offset, the left groove 42 and right groove 43
Position can also offset therewith, therefore protection domain of the present utility model should not be limited to shown in the accompanying drawing of the present embodiment
Position.
In some optional embodiments, the depth of the central recess 41, left groove 42 and right groove 43 is can be with
Change, wherein, depth of the depth compared with deep close to bending region fringe region in the middle part of bending region is shallower, i.e. Fig. 4
On the direction that the center of the shown central recess 41 extends to both sides, the depth of central recess 41 is gradually reduced, now, in
The cross sectional shape of heart groove 41 can not be the rectangle in Fig. 5, but semicircle, half elliptic, triangle, arch or trapezoidal.
It is such to be advantageous in that, it is possible to use change in depth makes the diverse location of groove gradually change the scattered intensity of stress, reaches
To more reasonably dispersion effect.And the left groove 42 can be then the depth as shallow in left side and the depth depth on right side, on the contrary, described
Right groove 43 can be then the depth as shallow on right side and the depth depth in left side.
Optionally, the depth of the central recess 41 can also be more than left groove 42 and right groove 43.It is such good
It is in, it is possible to use change in depth to make the groove of diverse location gradually change the scattered intensity of stress, it is more reasonable to reach
Dispersion effect.
In some optional embodiments, the scope of the depth of the central recess 41, left groove 42 and right groove 43 is equal
ForUsing the groove of this depth bounds, damage of the stress to device when can preferably reduce bending.
Preferably, the scope of the depth of the central recess 41 is 1~2 μm, the model of the depth of the left groove 42 and right groove 43
Enclose and beUsing the groove of this depth bounds, damage of the stress to device when can preferably reduce bending
Wound.
In some optional embodiments, the width in the bending region 30 is about 1.0mm~1.5mm, now, and described
The bending corresponding flexible substrates in region 30 (be usually PI substrates) need not simultaneously contribute to profile pattern, therefore, it is described in
Heart groove 41, the design of left groove 42 and right groove 43 do not interfere with surface smoothness；Also, optional, the bending region
30 is easily frequently are bent or cause the less region of radius of curvature because of bending in flexible display substrates, such
Stress is carried out in region to disperse, and can preferably improve reliability and the life-span of device.
In some optional embodiments, the shape of the inner space of the central recess 41, left groove 42 and right groove 43
Shape can also be part spherical (such as hemispherical, semi-ellipsoid shape, 1/3 spherical, 1/3 ellipsoid in addition to shape shown in Fig. 4
Deng), part cylindrical (such as semi-cylindrical, semiellipse column, 1/3 or 1/4 cylindric, 1/3 or 1/4 elliptic cylindrical shape), many ribs
One or more in column (such as triangular prism shape, quadrangular shape), irregular shape.Inner space with these shapes
The groove 31, can play a part of dispersive stress, protection domain of the present utility model should be belonged to.
The utility model additionally provides a kind of Flexible Displays base of damage of stress when can reduce bending to device in itself
3rd embodiment of plate.Flexible substrates faces upward in the one embodiment for the flexible display substrates that Fig. 1 provides for the utility model
Depending on schematic diagram, Fig. 6 is enlarged diagram of the 3rd embodiment in location A of the flexible substrates in Fig. 1.
As shown in Figure 1, Figure 4 and Figure 5, the flexible display substrates, including flexible substrates 10, in the flexible substrates 10
Bend region 30, be provided with 6 kinds of grooves --- upper central recess 51, lower central recess 52, upper left groove 53, lower-left groove 54,
Upper right groove 55 and bottom right groove 56；The upper central recess 51 and lower central recess 52 are parallel with folding line 57, the upper left
Groove 53, lower-left groove 54, upper right groove 55 and bottom right groove 56 are with folding line 57 in an angle for being less than 45 °, upper left groove
53 and lower-left groove 54 incline direction on the contrary, and upper right groove 55 and bottom right groove 56 incline direction also on the contrary, and upper left
Groove 53 is identical with the incline direction of bottom right groove 56, and the incline direction of upper right groove 55 and lower-left groove 54 is also identical.This
The upper central recess 51 of sample, lower central recess 52, upper left groove 53, lower-left groove 54, upper right groove 55 and bottom right groove 56
Arrangement mode so that the larger folding s tress being upwardly formed on the edge parallel with folding line 57 can preferably disperse；And due to
Tilt and arrange symmetrical upper left groove 53, lower-left groove 54, upper right groove 55 and bottom right groove 56 presence so that with folding
Trace 57 it is vertical along can also there is certain more uniform each stress to disperse upwards, so as to by stress preferably from each
Direction disperses away.The upper central recess 51, lower central recess 52, upper left groove 53, lower-left groove 54, the and of upper right groove 55
The opening direction of bottom right groove 56 is opposite with the light direction of the flexible display substrates so that the flexible display substrates
Other device layers can be laid on surface on light direction.
From above-described embodiment as can be seen that the utility model embodiment provide the flexible display substrates, by curved
The groove of specific arrangement mode is set in the corresponding flexible substrates in folding area domain so that when the bending region of flexible display substrates is curved
During folding, the stress produced herein can be carried out by the design of groove preferably disperseing, make other devices on bending region
Layer is not easy to crack or is broken, and stress is to other devices on the bending region of flexible display substrates when can preferably reduce bending
The damage of layer, so as to improve reliability and the life-span of device, and then improves the overall performance of flexible display substrates.In addition,
The flexible display substrates that the utility model embodiment is provided, can also preferably reduce and align and bind work in subsequent process
Deformation and skew during skill, so as to improve the yield of subsequent process.
Three kinds of groove its set-up modes in above-described embodiment can be：
Entirely bending region 30 in set it is described on central recess 51, lower central recess 52, upper left groove 53, lower-left
The quantity of groove 54, upper right groove 55 and bottom right groove 56 is respectively 1, although illustrated by way of example at its set location
Magnification region A in Fig. 1, but it is recognised that bending region optional position be all can set this such 6 it is recessed
Groove, the position shown in accompanying drawing is not limited solely in the present embodiment.
Meanwhile, optionally, if with 1 upper central recess 51,1 lower central recess 52,1 upper left groove 53,1 lower-left
Groove 54,1 upper right groove 55 and 1 bottom right groove 56 are 1 group, and the variant of the embodiment can also be 2 groups of setting
Or more spacing between group, and every group of groove can not be equal or not etc..
In addition, except the arrangement mode shown in Fig. 6, the upper central recess 51, lower central recess 52, upper left groove
53rd, the relativeness between lower-left groove 54, upper right groove 55 and bottom right groove 56 is also to change, for example, on described
It is any between central recess 51, lower central recess 52, upper left groove 53, lower-left groove 54, upper right groove 55 and bottom right groove 56
Mutual reversing of position, or, the upper central recess 51, lower central recess 52, upper left groove 53, lower-left groove 54, upper right are recessed
Groove 55 and bottom right groove 56 are all shifted to install from each other.These variants all should be worked as and belong to the utility model
Protection domain.
Further, it is also possible to which the embodiment realized can also be that the upper central recess 51, lower central recess 52 are also to incline
Oblique, or, the folding line 57 in inclined groove and the bending region is formed as any angle in the range of 0~45 °, each recessed
The angle of groove can be different, etc..
It is pointed out that the flexible display substrates are only referred to improved flexible substrates in the above-described embodiments, and
Without reference to other necessary device layers, but do not represent other necessary device layers of the flexible display substrates and be not included in
In the utility model embodiment, those skilled in the art can easily acknowledge that, be made necessary to flexible display substrates
The design of other device layers, therefore no longer repeated herein.
In some optional embodiments, as shown in fig. 6, the upper central recess 51, lower central recess 52, upper left groove
53rd, the inner space of lower-left groove 54, upper right groove 55 and bottom right groove 56 is that strip (can be part cylindrical or polygon prism
Shape), the upper central recess 51 and lower central recess 52 are arranged on the folding line 57 in the bending region 30 and the upper center
The length direction of groove 51 and lower central recess 52 is parallel with the folding line 57.The upper left groove 53, lower-left groove 54, upper right
Groove 55 and bottom right groove 56 are then symmetrically arranged at the upper central recess 51 and the lower both sides of central recess 52.Optionally,
Set described curved in region between the leaded non-display area for waiting device of arrangement of flexible display substrates and viewing area
Folding area domain 30.When making flexible display apparatus, it is necessary to which the flexible display substrates edge completed is entered along bending region 30
Row bending, so that the non-display area for the device such as leaded of arranging is nuzzled to realize that frame is encapsulated in frame, the folding line 57
It can then refer to that bending region 30 is bent the minimum position of center line of rear radius of curvature.Stress is maximum herein, by it is described it is upper in
Heart groove 51 and lower central recess 52 are arranged on folding line 57, then can at utmost dispersive stress, and the upper left of both sides is recessed
Groove 53, lower-left groove 54, upper right groove 55 and the further dispersive stress of the energy of bottom right groove 56, so that should when preferably reducing bending
Damage of the power to device.It will, of course, be appreciated that when, folding line 57 is set along the center line in bending region 30 in accompanying drawing,
In some cases, if the position of folding line 57 is offset, the position of the upper central recess 51 and lower central recess 52 can also be corresponding
Ground is offset, and the upper left groove 53, lower-left groove 54, the position of upper right groove 55 and bottom right groove 56 can also be offset therewith,
Therefore protection domain of the present utility model should not be limited to the position shown in the accompanying drawing of the present embodiment.
In some optional embodiments, the upper central recess 51, lower central recess 52, upper left groove 53, lower-left are recessed
The depth of groove 54, upper right groove 55 and bottom right groove 56 can change, wherein, close to bending region in the middle part of depth compared with
The depth of deep and close bending region fringe region is shallower, i.e., the upper central recess 51 and lower central recess 52 shown in Fig. 6
The direction that extends to both sides of center on, the depth of the upper central recess 51 and lower central recess 52 is gradually reduced, now,
The cross sectional shape of the upper central recess 51 and lower central recess 52 can not be rectangle, but semicircle, half elliptic, triangle
Shape, arch or trapezoidal.It is such to be advantageous in that, it is possible to use change in depth makes the diverse location of groove to the scattered strong of stress
Degree is gradually changed, and reaches more reasonably dispersion effect.And the upper left groove 53 and lower-left groove 54 can be then the depths in left side
Shallow and right side the depth of degree is deep, on the contrary, the upper right groove 55 and bottom right groove 56 can be then the depth as shallow on right side and left side
Depth it is deep.
Optionally, the depth of the upper central recess 51 and lower central recess 52 can also be more than upper left groove 53, a left side
Low groove 54, upper right groove 55 and bottom right groove 56.It is such to be advantageous in that, it is possible to use change in depth makes diverse location
Groove the scattered intensity of stress is gradually changed, reach more reasonably dispersion effect.
In some optional embodiments, the upper central recess 51, lower central recess 52, upper left groove 53, lower-left are recessed
The scope of the depth of groove 54, upper right groove 55 and bottom right groove 56 isUsing the recessed of this depth bounds
Groove, damage of the stress to device when can preferably reduce bending.Preferably, the upper central recess 51 and lower central recess 52
The scope of depth be 1~2 μm, the upper left groove 53, lower-left groove 54, the depth of upper right groove 55 and bottom right groove 56
Scope beUsing the groove of this depth bounds, stress is to device when can preferably reduce bending
Damage.
In some optional embodiments, the width in the bending region 30 is about 1.0mm~1.5mm, now, and described
The bending corresponding flexible substrates in region 30 (be usually PI substrates) need not simultaneously contribute to profile pattern, therefore, it is described on
Central recess 51, lower central recess 52, upper left groove 53, lower-left groove 54, upper right groove 55 and bottom right groove 56 design not
Surface smoothness can be influenceed；Also, it is optional, the bending region 30 be easily frequently bent in flexible display substrates or
Cause the less region of radius of curvature because of bending, stress is carried out in such region and is disperseed, device can be preferably improved
The reliability of part and life-span.
In some optional embodiments, the upper central recess 51, lower central recess 52, upper left groove 53, lower-left are recessed
The shape of the inner space of groove 54, upper right groove 55 and bottom right groove 56, can be part spherical (such as hemispherical, semielliptical
Shape, 1/3 spherical, 1/3 ellipsoid etc.), part cylindrical (for example semi-cylindrical, semiellipse column, 1/3 or 1/4 cylindric, 1/3 or
1/4 elliptic cylindrical shape etc.), polygon prism shape (such as triangular prism shape, quadrangular shape), the one or more in irregular shape.Tool
There is the groove 31 of the inner space of these shapes, can play a part of dispersive stress, should belong to of the present utility model
Protection domain.
The utility model additionally provides a kind of Flexible Displays base of damage of stress when can reduce bending to device in itself
4th embodiment of plate.Flexible substrates faces upward in the one embodiment for the flexible display substrates that Fig. 1 provides for the utility model
Depending on schematic diagram, Fig. 7 is enlarged diagram of the 4th embodiment in location A of the flexible substrates in Fig. 1.
The flexible display substrates, including flexible substrates 10, in the bending region 30 of the flexible substrates 10, are provided with many
Individual groove, (in Fig. 7 bending region 30, non-shaded portion is recessed to tread contour shape of the multiple groove type as tire
Groove)；The opening direction of the groove is opposite with the light direction of the flexible display substrates.The tread contour of tire has in itself
The effect for the stress that outer bound pair tire is produced in itself is eliminated, in the present embodiment, the multiple groove type is turned into the tire of tire
Face decorative pattern shape, can eliminate the principle of stress using the tread contour of tire, reach and eliminate curved in bending region 30
Roll over the effect of stress influence.
From above-described embodiment as can be seen that the utility model embodiment provide the flexible display substrates, by curved
Groove is set in the corresponding flexible substrates in folding area domain, and the multiple groove type turns into the tread contour shape of tire so that when
When the bending region of flexible display substrates is bent, the stress produced herein can be carried out by the groove of this particular design
Largely disperse, make other device layers on bending region not easy to crack or be broken, answered when can preferably reduce bending
Damage of the power to other device layers on the bending region of flexible display substrates, so that reliability and the life-span of device are improved,
And then improve the overall performance of flexible display substrates.In addition, the flexible display substrates that the utility model embodiment is provided,
The deformation and skew when subsequent process is aligned and binds technique can also be preferably reduced, so as to improve subsequent process
Yield.
It is pointed out that Fig. 7 in the present embodiment illustrate only its of the tread contour of the tire of multiple groove compositions
Middle one kind, it is recognised that the tread contour of tire is various, as long as can play a part of eliminating stress, can be applicable to
It is no longer exhaustive herein in the utility model.
It should be strongly noted that the shade bent in Fig. 2, Fig. 4, Fig. 6 and Fig. 7 in region 30 is not hatching, and only
Merely to the differentiation mode that groove and bending region 30 are made a distinction.
Based on object defined above, stress is to device when second aspect of the present utility model can reduce bending there is provided one kind
One embodiment of the flexible display apparatus of the damage of itself.
The flexible display apparatus, including the as above flexible display substrates described in any embodiment.
Wherein, the flexible display apparatus can be for example：Electronic Paper, display, mobile phone, tablet personal computer, television set, pen
Remember any product or part with display function such as this computer, DPF, navigator.
From above-described embodiment as can be seen that the utility model embodiment provide the flexible display apparatus, by curved
Groove is set in the corresponding flexible substrates in folding area domain so that, can be by this when the bending region of flexible display apparatus is bent
The stress that place is produced is disperseed by groove, is made other device layers on bending region not easy to crack or is broken, can be more preferable
Reduction bending when stress to flexible display substrates bending region on other device layers damage, so as to improve device
Reliability and life-span, and then improve the overall performance of flexible display substrates.In addition, the offer of the utility model embodiment is described
Flexible display apparatus, can also preferably reduce the deformation and skew when subsequent process is aligned and binds technique, so as to
Improve the yield of subsequent process.
Based on object defined above, stress is to device when the 3rd aspect of the present utility model can reduce bending there is provided one kind
One embodiment of the method for the manufacture flexible display substrates of the damage of itself.Figure 14 is soft for the manufacture that the utility model is provided
The schematic flow sheet of one embodiment of the method for property display base plate.
The method of the manufacture flexible display substrates, comprises the following steps：
Step 101：As shown in Figure 8 (diagrammatic cross-section that the amplification at Fig. 1 magnification region A is illustrate only in Fig. 8), exist
SiNx or SiOx films 70 (can also be the composite film of the two) are deposited on glass substrate 60；Optionally, the SiNx or
The thickness of SiOx films 70 is
Step 102：(diagrammatic cross-section that the amplification at Fig. 1 magnification region A is illustrate only in Fig. 9), is adopted as shown in Figure 9
With photoetching-etching-stripping technology, SiNx the or SiOx films 70 are formed as and foregoing any flexible display substrates embodiment
In the groove corresponding raised 71, obtain carrier substrate 80.
Step 103：As shown in Figure 10 (diagrammatic cross-section that the amplification at Fig. 1 magnification region A is illustrate only in Figure 10),
The flexible substrate material 90 on carrier substrate 80, so as to form corresponding groove in flexible base material 90；
Step 104：Other follow-up techniques (for example laying other necessary device layers) are carried out, and complete the system of integral device
Make；
Step 105：As shown in figure 12 (diagrammatic cross-section that the amplification at Fig. 1 magnification region A is illustrate only in Figure 12),
The flexible base material 90 is peeled off with the carrier substrate 80, flexible display panels is obtained and (is only shown in Figure 12 after stripping
Flexible display panels flexible substrates 10, eliminate other device layers thereon)；Optionally, using laser lift-off (LLO,
Laser lift-off) flexible base material and the carrier substrate to be peeled off, this stripping mode can reduce flexibility
The damage of base material.
From above-described embodiment as can be seen that the manufacture flexible display substrates provided using the utility model embodiment
Flexible display apparatus made from method, by setting groove in the corresponding flexible substrates in bending region so that work as Flexible Displays
When the bending region of device is bent, the stress produced herein can be disperseed by groove, make its on bending region
His device layer it is not easy to crack or fracture, when can preferably reduce bending stress to flexible display substrates bending region on its
The damage of his device layer, so as to improve reliability and the life-span of device, and then improves the overall performance of flexible display substrates.
In addition, providing the flexible display apparatus made from the method for manufacturing flexible display substrates using the utility model embodiment, also
The deformation and skew when subsequent process is aligned and binds technique can be preferably reduced, so as to improve the good of subsequent process
Rate.
The manufacture flexibility that the utility model additionally provides a kind of damage of stress when can reduce bending to device in itself is aobvious
Show second embodiment of the method for substrate.The second of the method for the manufacture flexible display substrates that Figure 15 provides for the utility model
The schematic flow sheet of individual embodiment.
The method of the manufacture flexible display substrates, comprises the following steps：
Step 201：As shown in figure 11 (diagrammatic cross-section that the amplification at Fig. 1 magnification region A is illustrate only in Figure 11),
The flexible substrate material 90 on carrier substrate 80 '；Wherein, be already provided with the carrier substrate 80 ' with it is foregoing any
The corresponding projection of the groove in flexible display substrates embodiment；
Step 202：Other follow-up techniques (for example laying other necessary device layers) are carried out, and complete the system of integral device
Make；
Step 203：As shown in figure 12 (diagrammatic cross-section that the amplification at Fig. 1 magnification region A is illustrate only in Figure 12),
The flexible base material 90 and the carrier substrate 80 ' are peeled off, flexible display panels is obtained and (is only shown in Figure 12 after stripping
Flexible display panels flexible substrates 10, eliminate other device layers thereon)；Optionally, using laser lift-off (LLO,
Laser lift-off) flexible base material and the carrier substrate to be peeled off, this stripping mode can reduce flexibility
The damage of base material.
From above-described embodiment as can be seen that the manufacture flexible display substrates provided using the utility model embodiment
Flexible display apparatus made from method, by setting groove in the corresponding flexible substrates in bending region so that work as Flexible Displays
When the bending region of device is bent, the stress produced herein can be disperseed by groove, make its on bending region
His device layer it is not easy to crack or fracture, when can preferably reduce bending stress to flexible display substrates bending region on its
The damage of his device layer, so as to improve reliability and the life-span of device, and then improves the overall performance of flexible display substrates.
Also, carrier substrate is the finished product completed in the method for the present embodiment, therefore, it is possible to save manufacturing process, improves system
Make efficiency.In addition, providing the Flexible Displays made from the method for manufacturing flexible display substrates using the utility model embodiment
Device, can also preferably reduce the deformation and skew when subsequent process is aligned and binds technique, follow-up so as to improve
The yield of technique.
It is pointed out that employing the groove arrangement of second embodiment of flexible display substrates in Fig. 9~Figure 12
The corresponding structure of mode, but it is a kind of flexible just for this not represent the embodiment of the method for the above-mentioned manufacture flexible display substrates
The embodiment of display base plate.Each embodiment based on foregoing soft display base plate, can deduce respective flexible display base plate
During the manufacture craft of embodiment, the shape that structure corresponding with its groove arrangement mode should be presented no longer is gone to live in the household of one's in-laws on getting married herein
State.
Based on object defined above, the 4th aspect of the present utility model, which provides one kind, to be used to answer when manufacture can reduce bending
One embodiment of the carrier substrate of the flexible display substrates of damage of the power to device in itself.Figure 13 be and magnification region A in Fig. 1
The main structure diagram of the part amplification of the corresponding carrier substrate.
On carrier substrate 80 ' for manufacturing as above any flexible display substrates embodiment, the carrier substrate 80 '
It is provided with projection corresponding with the groove.
From above-described embodiment as can be seen that as above any described soft for manufacturing using the offer of the utility model embodiment
Property display base plate embodiment carrier substrate, the making of foregoing any flexible display substrates embodiment can be facilitated, improve
Operating efficiency.
It is pointed out that employing the groove arrangement mode correspondence of second embodiment of flexible display substrates in Figure 13
Carrier substrate structure, but do not represent and above-mentioned be used to manufacture the carrier substrate embodiments of the flexible display substrates just for this
A kind of embodiment of flexible display substrates.Each embodiment based on foregoing soft display base plate, can deduce respective flexible
During the manufacture craft of display base plate embodiment, what carrier substrate structure corresponding with its groove arrangement mode should be presented
Shape, will not be repeated here.
Those of ordinary skills in the art should understand that：The discussion of any of the above embodiment is exemplary only, not
It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples；Under thinking of the present utility model, the above is real
Applying can also be combined between the technical characteristic in example or non-be the same as Example, and exist as described above of the present utility model
Many other changes of different aspect, for simplicity, they are provided not in details.Therefore, it is all in spirit of the present utility model
Within principle, any omission, modification, equivalent substitution, improvement for being made etc. should be included in protection domain of the present utility model
Within.
Claims (10)
1. a kind of flexible display substrates, including flexible substrates, it is characterised in that in the bending region of the flexible substrates, are set
There is at least one groove；The opening direction of the groove is opposite with the light direction of the flexible display substrates.
2. flexible display substrates according to claim 1, it is characterised in that the depth of the groove in the middle part of bending region
More than the depth of the groove in bending edges of regions.
3. flexible display substrates according to claim 1, it is characterised in that the scope of the depth of the groove is
4. flexible display substrates according to claim 1, it is characterised in that at least one groove and the bent area
The folding line in domain is formed as 0~45 ° of angle.
5. flexible display substrates according to claim 1, it is characterised in that at least one groove includes internal sky
Between be part cylindrical groove, the groove of the part cylindrical is arranged on the folding line in the bending region and the part cylindrical
Groove length direction it is parallel with the folding line.
6. flexible display substrates according to claim 1, it is characterised in that the cross sectional shape of the groove is square,
Rectangle, semicircle, arch, triangle, it is trapezoidal in one or more.
7. flexible display substrates according to claim 1, it is characterised in that the inner space of the groove is shaped as portion
One or more in bulb separation shape, part cylindrical, polygon prism shape, irregular shape.
8. flexible display substrates according to claim 1, it is characterised in that the groove number is multiple and multiple recessed
Flute profile turns into the tread contour shape of tire.
9. a kind of flexible display apparatus, it is characterised in that including the flexible display substrates as described in claim any one of 1-8.
10. a kind of carrier substrate for being used to manufacture the flexible display substrates as described in claim any one of 1-8, it is characterised in that
Projection corresponding with the groove is provided with the carrier substrate.
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| CN201720210319.6U CN206516661U (en) | 2017-03-06 | 2017-03-06 | Flexible display substrates, flexible display apparatus and carrier substrate |
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| CN201720210319.6U CN206516661U (en) | 2017-03-06 | 2017-03-06 | Flexible display substrates, flexible display apparatus and carrier substrate |
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| CN107068862A (en) * | 2017-03-06 | 2017-08-18 | 京东方科技集团股份有限公司 | Flexible display substrates and its manufacture method, flexible display apparatus, carrier substrate |
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