CN110212089A - Flexible OLED display panel - Google Patents
Flexible OLED display panel Download PDFInfo
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- CN110212089A CN110212089A CN201910401985.1A CN201910401985A CN110212089A CN 110212089 A CN110212089 A CN 110212089A CN 201910401985 A CN201910401985 A CN 201910401985A CN 110212089 A CN110212089 A CN 110212089A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/841—Self-supporting sealing arrangements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Abstract
The present invention provides a kind of flexible OLED display panel, including backboard, flexible substrate, signal line layer, and backboard includes the first backboard and the second backboard；Flexible substrate is set on backboard, and flexible substrate includes the firstth area corresponding to the first backboard, the secondth area corresponding to the second backboard and the bent area for connecting the firstth area and the secondth area；Signal line layer is set in flexible substrate；Wherein, in bent area, flexible substrate forms fluted far from the side of signal line layer.By forming groove in bent area, it can reduce the crooked process radius of flexible OLED display panel, and then reduce the size of rim area, improve screen accounting.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of flexible OLED display panels.
Background technique
With the development of display industry technology, shielding technology comprehensively becomes main development trend, the narrow frame of display panel
It designs more and more important.
Structure under the flexible OLED display panel bending state of the prior art is as shown in Figure 1, include the be oppositely arranged
One backboard 10, the second backboard 20 and the flexible panel 30 being arranged on the first backboard 10 and the second backboard 20, flexible panel 30
Including bent area 31, flexible panel 30 is semi-circular structure in bent area 31, this design can preferably balance bending route stress,
But crooked process radius R is excessive, limits the minimum design dimension in display floater frame area, is unable to satisfy the design shielded comprehensively.
Therefore, the existing flexible OLED display panel technical problem excessive there are crooked process radius, needs to improve.
Summary of the invention
The present invention provides a kind of flexible OLED display panel, to alleviate crooked process radius mistake in existing flexible OLED display panel
Big technical problem.
To solve the above problems, technical solution provided by the invention is as follows:
The present invention provides a kind of flexible OLED display panel, comprising:
Backboard, including the first backboard and the second backboard；
Flexible substrate is set on the backboard, the flexible substrate include corresponding to first backboard the firstth area,
Corresponding to the secondth area of second backboard and the bent area in connection firstth area and secondth area；
Signal line layer is set in the flexible substrate；
Wherein, in the bent area, the flexible substrate forms fluted far from the side of the signal line layer.
In flexible OLED display panel of the invention, the signal line layer is in the region for being correspondingly arranged on the groove
Thickness be greater than the not set groove region thickness.
In flexible OLED display panel of the invention, in the region for being provided with the groove, the signal line layer is remote
Side from the flexible substrate is formed with thickening layer.
In flexible OLED display panel of the invention, thickness of the signal line layer in the bent area is greater than in institute
State the thickness in the firstth area and secondth area.
In flexible OLED display panel of the invention, in the bent area, the signal line layer is far from the flexibility
The side of substrate is formed with thickening layer.
In flexible OLED display panel of the invention, the material of the thickening layer is nano-silver thread.
In flexible OLED display panel of the invention, the quantity of the groove is one.
In flexible OLED display panel of the invention, the groove is formed in the intermediate region of the bent area.
In flexible OLED display panel of the invention, the cross sectional shape of the groove is in trapezoidal, semicircle or rectangle
One kind.
In flexible OLED display panel of the invention, the depth of the groove be the flexible substrate thickness four/
3/1 to four.
The invention has the benefit that the present invention provides a kind of flexible OLED display panel, including backboard, flexible substrate,
Signal line layer, the backboard include the first backboard and the second backboard；The flexible substrate is set on the backboard, the flexibility
Substrate includes the firstth area corresponding to first backboard, the secondth area corresponding to second backboard and connection described the
The bent area in one area and secondth area；The signal line layer is set in the flexible substrate；Wherein, in the bent area
Interior, the flexible substrate forms fluted far from the side of the signal line layer.By forming groove in bent area, can subtract
The crooked process radius of small flexibility OLED display panel, and then reduce the size of rim area, improve screen accounting.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of invention
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is flexible OLED display panel in the prior art and flexible OLED display panel provided in an embodiment of the present invention
Structural schematic diagram under bending state；
Fig. 2 is the first structural schematic diagram of flexible OLED display panel provided in an embodiment of the present invention；
Fig. 3 is second of structural schematic diagram of flexible OLED display panel provided in an embodiment of the present invention；
Fig. 4 is the third structural schematic diagram of flexible OLED display panel provided in an embodiment of the present invention；
Fig. 5 is the 4th kind of structural schematic diagram of flexible OLED display panel provided in an embodiment of the present invention.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the present invention
Example.The direction term that the present invention is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to
The limitation present invention.The similar unit of structure is with being given the same reference numerals in the figure.
The present invention provides a kind of flexible OLED display panel, to alleviate crooked process radius mistake in existing flexible OLED display panel
Big technical problem.
As shown in Fig. 2, for the first structural schematic diagram of flexible OLED display panel provided in an embodiment of the present invention, it is flexible
OLED display panel includes conductive layer 110, buffer layer 120, backboard 130, flexible substrate 140, organic flexible layer 150, signal wire
Layer 160, light emitting functional layer 170, protective layer 180.
Backboard 130 includes the first backboard 131 and the second backboard 132.Flexible substrate 140 is set on backboard 130, flexible liner
Bottom 140 includes the first area 100 corresponding to the first backboard 131, the second area 200 corresponding to the second backboard 132 and connection the
The bent area 300 in one area 100 and the second area 200.
Organic flexible layer 150 is arranged in flexible substrate 140, and wherein the material of flexible substrate 140 is polyimides, organic
The material of flexible layer 150 is organic material.Organic flexible layer 150 can be arranged in flexible substrate 140 with flood, can also only exist
Setting in bent area 300.
Signal line layer 160 is formed on organic flexible layer 150, and light emitting functional layer 170 is formed on signal line layer 160, hair
Light functional layer 170 includes planarization layer, pixel defining layer and luminous material layer.
In bent area 300, flexible substrate 140 forms fluted 141 far from the side of signal line layer 160.
Since flexible substrate 140 is polyimides, and polyimides cannot first be prepared directly as substrate at one
On bottom plate, then other layers are prepared on polyimide layer, finally peel off bottom plate.Due in bent area 300, flexible substrate
Fluted 141 are formed on 140, thus can first be prepared on bottom plate with the corresponding protrusion of groove 141, then carry out flexibility again
The preparation of substrate 140 and other layers just forms groove 141. after bottom plate peels off in flexible substrate 140
Bent area 300 includes non-intermediate region and intermediate region 303, and non-intermediate region includes the firstth area of connection 100 in
Between region 303 the first bent area 301, and second bent area 302 in connection the second area 200 and intermediate region 303.Bent area
300 inner groovies 141 can be set one, also can be set multiple, and in the present embodiment, the quantity of groove 141 is one, and shape
At in intermediate region 303, in bending, crooked process radius is minimum in this way.
The cross sectional shape of groove 141 can be trapezoidal, rectangle, semicircle etc., be also possible to other shapes, need to illustrate
It is that the cross sectional shape of groove 141 is the shape under the non-bending state of flexible substrate 130.
In one embodiment, the depth of groove 141 is a quarter of 140 thickness of flexible substrate to 3/4ths.
Flexible OLED display panel of the invention further includes the conductive layer 110 and buffer layer 120 being stacked, conductive layer
110 and buffer layer 120 be both formed in the first area 100, wherein buffer layer 120 is formed on conductive layer 110, buffer layer 120 and
The fitting of one backboard 131.
In one embodiment, the material of conductive layer 110 is metallic copper, and the material of buffer layer 120 is foam.
Protective layer 180 is set in light emitting functional layer 170, and the material of protective layer 180 is ultraviolet light-sensitive emulsion.
Signal line layer 160 is correspondingly arranged thickness of the thickness in fluted 141 region greater than the region of not set groove 141
Degree.
When forming the organic flexible layer 150 below signal line layer 160, first in the region for being correspondingly formed fluted 141
The first groove 142 is formed, then prepares signal line layer 160 again, and signal line layer 160 is being correspondingly formed fluted 141 region
Interior etching depth is less than the etching depth in other regions, i.e., the position of 160 respective slot 141 of signal line layer is formed in the area
Protrusion 143, the signal line layer 160 eventually formed, including be laid on organic flexible layer 150 part, be filled in organic flexible
The part of part and formation protrusion 143 in first groove 142 of layer 150, the correspondence of signal line layer 160 eventually formed are set
The thickness being equipped in the region of groove 141 is greater than the thickness in the region of not set groove 141.
Certainly, the generation type of signal line layer 160 is without being limited thereto, in one embodiment, forms signal line layer 160 and schemes
During case, groove is not formed on organic flexible layer 150, signal line layer 160 is forming fluted 141 region etch
Depth is smaller, larger in the depth of other region etch, i.e. the position shape of 160 respective slot 141 of signal line layer in the area
At protrusion 143, the signal line layer 160 eventually formed is correspondingly arranged the thickness in fluted 141 region greater than not set groove
The thickness in 141 region.
In one embodiment, recessed being correspondingly formed when forming the organic flexible layer 150 below signal line layer 160
The first groove 142 is formed in the region of slot 141, then prepares signal line layer 160 again, and signal line layer 160 is corresponding in the area
The position of groove 141 does not form protrusion, and the signal line layer 160 eventually formed is correspondingly arranged the thickness in fluted 141 region
Greater than the thickness in the region of not set groove 141.
In addition it is also possible to be not provided with organic flexible layer 150, signal line layer 160 is directly prepared in flexible substrate 140.Letter
The preparation method of number line floor 160 on organic flexible floor 150 preparation method it is similar, as long as guaranteeing the signal line layer eventually formed
160 thickness being correspondingly arranged in fluted 141 region are greater than the thickness in the region of not set groove 141.
Due to setting fluted 141, flexible OLED display panel bending when, the stress that signal line layer 160 is subject to exists
Groove 141 is arranged area and increases, therefore the enlarged in thickness that the signal line layer 160 in fluted 141 region will be arranged, and can be enhanced
The resistance to rupture of route.
As shown in fig. ib, when flexible OLED display panel is in bending state, the second area 200 passes through buckled zone
300 bendings are bonded the second backboard 132 with conductive layer 110 to the side in the first area 100.
In the first area 100, encapsulated layer 210 is additionally provided in light emitting functional layer 170, encapsulated layer 210 is used to completely cut off water oxygen,
Prevent OLED display panel by water oxygen erosion damage.Touch screen 230 is provided on encapsulated layer 210, touch screen 230 passes through the first glue
Layer 220 is bonded on encapsulated layer 210, and touch screen 230 is bound close to one end of bent area 300 and flexible circuit board 270, flexible electrical
The other end of road plate 270 is bent to the first area 200, with printed circuit board (not shown go out) binding.It is provided on touch screen 230 partially
Mating plate 240, cover board 260 is additionally provided on polaroid 240, and cover board 260 is bonded on polaroid 240 by the first glue-line 250.The
The material of one glue-line 220 and the second glue-line 250 is usually optical cement, and cover board 260 is usually glass cover-plate.
There are many purposes for flexibility OLED display panel provided in an embodiment of the present invention, such as can be used in Intelligent bracelet, intelligence
On the wearable devices such as wrist-watch, VR (Virtual Reality, virtual reality)；Can also be used in mobile phone, e-book and
The flexibility OLED such as electronic newspaper, television set, personal portable computer, foldable and rollable OLED are shown and lighting apparatus etc..
In conjunction with the b in a and Fig. 1 in Fig. 1 it is found that in existing flexible OLED display panel, when bending, is all used pair
Claim the structure of bending, i.e. bent area is semicircle, and crooked process radius R is larger, size and bent area due to the rim area of display panel
Size it is corresponding, bent area is smaller, and rim area is also smaller, this design limitation symmetrically bent display floater frame area
Minimum design dimension.Flexible OLED display panel of the invention, is arranged groove, simultaneously in the flexible substrate of flexible substrate 140
Since the thickness of the corresponding regional signal line layer of groove becomes larger, the resistance to rupture of route is enhanced, radius r when bending is opposite
It is substantially reduced in bent area for the crooked process radius R of half bowlder, can only accomplish to bend originally, it now is possible to realize doubling, in addition, this
Kind structure makes bonding region total length become smaller, and the design of backboard can also accordingly be thinned, so that the rim area of display panel
Size also reduce therewith, be conducive to improve screen accounting, promoted product competitiveness.
As shown in figure 3, for second of structural schematic diagram of flexible OLED display panel provided in an embodiment of the present invention.It is flexible
OLED display panel includes conductive layer 110, buffer layer 120, backboard 130, flexible substrate 140, organic flexible layer 150, signal wire
Layer 160, light emitting functional layer 170, protective layer 180.
In the present embodiment, flexible OLED display panel further includes thickening layer 190, and thickening layer 190 is arranged in signal line layer
160 sides far from flexible substrate 140, and correspond to groove 141 and be arranged.
In one embodiment, thickening layer 190 is identical as the material of signal line layer 160, prepares and completes in signal line layer 160
Afterwards, in the region of respective slot 141, then one layer of thickening layer 190 is prepared.
In one embodiment, thickening layer 190 is not identical as the material of signal line layer 160, and the material of thickening layer 190 is to receive
Rice silver wire, through printing technology preparation on signal line layer 160.
When preparing thickening layer 190, thickness of the signal line layer 160 in the region of respective slot 141 can be with other areas
Domain thickness is identical, can also be greater than the thickness in other regions.
It in one embodiment, can be first in corresponding shape when forming the organic flexible layer 150 below signal line layer 160
At the first groove 142 is formed in fluted 141 region, signal line layer 160 is then prepared again, signal line layer 160 is right at this time
The thickness for answering the thickness in the region of groove 141 to be greater than other regions is finally prepared along with the thickness of thickening layer 190
Signal line layer 160 and the sum of the thickness of thickening layer 190 be greater than the thickness in other regions.
In one embodiment, organic flexible layer 150 does not form the first groove 142, directly prepares signal line layer 160, letter
Number thickness of the line floor 160 in the region of respective slot 141 is identical as other area thickness, along with the thickness of thickening layer 190,
The sum of thickness of the signal line layer 160 and thickening layer 190 that are finally prepared is greater than the thickness in other regions.
In the bending of flexible OLED display panel, the regional signal line layer 160 of respective slot 141 is larger by stress, by
The region of respective slot 141 is provided with thickening layer 190, enhances the resistance to rupture of route, so that signal line layer 160 is not easy
It is impaired.
300 inner groovy 141 of bent area can be set one, also can be set it is multiple, in the present embodiment, groove 141
Quantity is one, and is formed in intermediate region 303, and in bending, crooked process radius is minimum in this way.
The cross sectional shape of groove 141 can be trapezoidal, rectangle, semicircle etc., be also possible to other shapes, need to illustrate
It is that the cross sectional shape of groove 141 is the shape under the non-bending state of flexible substrate 130.
In one embodiment, the depth of groove 141 is a quarter of 140 thickness of flexible substrate to 3/4ths.
Flexible OLED display panel of the invention, the setting groove 141 in the flexible substrate of flexible substrate 140, while by
In being provided with thickening layer 190 on the corresponding regional signal line layer 160 of groove 141, the resistance to rupture of route is enhanced, when bending
Radius r relative to bent area be half bowlder crooked process radius R be substantially reduced, can only accomplish to bend originally, it now is possible to realize
Doubling, in addition, this structure makes bonding region total length become smaller, the design of backboard can also be accordingly thinned, so that display
The size of the rim area of panel also reduces therewith, is conducive to improve screen accounting, promotes product competitiveness.
As shown in figure 4, for the third structural schematic diagram of flexible OLED display panel provided in an embodiment of the present invention.It is flexible
OLED display panel includes conductive layer 110, buffer layer 120, backboard 130, flexible substrate 140, organic flexible layer 150, signal wire
Layer 160, light emitting functional layer 170, protective layer 180.
In the present embodiment, the thickness in the corresponding bent area 300 of signal line layer 160 is greater than the thickness in other regions.
When forming the organic flexible layer 150 below signal line layer 160, the first groove is first formed in bent area 300
142, signal line layer 160 is then prepared again, and the etching depth in the region for being correspondingly formed fluted 141 of signal line layer 160 is small
Etching depth in other regions, i.e., the position of corresponding first groove 142 of signal line layer 160 forms protrusion in bent area 300
143, the signal line layer 160 eventually formed, including be laid on organic flexible layer 150 part, be filled in organic flexible layer 150
The first groove 142 in part and formed protrusion 143 part, the signal line layer 160 eventually formed is in bent area 300
Interior thickness is greater than the thickness in other regions.
Certainly, the generation type of signal line layer 160 is without being limited thereto, in one embodiment, forms signal line layer 160 and schemes
During case, do not form groove on organic flexible layer 150, the depth that signal line layer 160 etches in bent area 300 compared with
Small, larger in the depth of other region etch, i.e., signal line layer 160 forms protrusion 143 in bent area 300, eventually forms
Thickness of the signal line layer 160 in bent area 300 is greater than the thickness in other regions.
In one embodiment, when forming the organic flexible layer 150 below signal line layer 160, the shape in bent area 300
At the first groove 142, signal line layer 160 is then prepared again, and signal line layer 160 does not form protrusion, last shape in bent area 300
At thickness of the signal line layer 160 in bent area 300 be greater than the thickness in other regions.
In addition it is also possible to be not provided with organic flexible layer 150, signal line layer 160 is directly prepared in flexible substrate 140.Letter
The preparation method of number line floor 160 on organic flexible floor 150 preparation method it is similar, as long as guaranteeing the signal line layer eventually formed
160 thickness in bent area 300 is greater than the thickness in other regions.
Since fluted 141 being arranged in bent area 300, the radius in bending of flexible OLED display panel reduces, signal
The stress that line layer 160 is subject in bent area 300 is significantly increased relative to not set groove 141, therefore by entire bent area 300
The enlarged in thickness of interior signal line layer 160, can be enhanced the resistance to rupture of route.
300 inner groovy 141 of bent area can be set one, also can be set it is multiple, in the present embodiment, groove 141
Quantity is one, and is formed in intermediate region 303, and in bending, crooked process radius is minimum in this way.
The cross sectional shape of groove 141 can be trapezoidal, rectangle, semicircle etc., be also possible to other shapes, need to illustrate
It is that the cross sectional shape of groove 141 is the shape under the non-bending state of flexible substrate 130.
In one embodiment, the depth of groove 141 is a quarter of 140 thickness of flexible substrate to 3/4ths.
Groove 141 is arranged in flexible OLED display panel of the invention in the flexible substrate of flexible substrate 140, simultaneously will
160 thickness of signal line layer increases in bent area 300, enhances the resistance to rupture of route, and radius r when bending is relative to bending
Area is that the crooked process radius R of half bowlder is substantially reduced, and can only accomplish to bend originally, it now is possible to doubling is realized, in addition, this structure
Bonding region total length is set to become smaller, the design of backboard can also accordingly be thinned, so that the size of the rim area of display panel
Also reduce therewith, be conducive to improve screen accounting, promote product competitiveness.
As shown in figure 5, for the 4th kind of structural schematic diagram of flexible OLED display panel provided in an embodiment of the present invention.It is flexible
OLED display panel includes conductive layer 110, buffer layer 120, backboard 130, flexible substrate 140, organic flexible layer 150, signal wire
Layer 160, light emitting functional layer 170, protective layer 180.
In the present embodiment, flexible OLED display panel further includes thickening layer 190, and thickening layer 190 is arranged in signal line layer
160 sides far from flexible substrate 140, and correspond to bent area 300 and be arranged.
In one embodiment, thickening layer 190 is identical as the material of signal line layer 160, prepares and completes in signal line layer 160
Afterwards, in bent area 300, then one layer of thickening layer 190 is prepared.
In one embodiment, thickening layer 190 is not identical as the material of signal line layer 160, and the material of thickening layer 190 is to receive
Rice silver wire, through printing technology preparation on signal line layer 160.
When preparing thickening layer 190, thickness of the signal line layer 160 in bent area 300 can be with other area thickness phases
Together, the thickness in other regions can also be greater than.
It in one embodiment, can be first in bent area when forming the organic flexible layer 150 below signal line layer 160
The first groove 142 is formed in 300, then prepares signal line layer 160 again, at this time thickness of the signal line layer 160 in bent area 300
Greater than the thickness in other regions, along with the thickness of thickening layer 190, the signal line layer 160 and thickening layer 190 that are finally prepared
The sum of thickness be greater than the thickness in other regions.
In one embodiment, organic flexible layer 150 does not form the first groove 142, directly prepares signal line layer 160, letter
Number thickness of the line floor 160 in bent area 300 is identical as other area thickness, along with the thickness of thickening layer 190, finally prepares
The sum of thickness of obtained signal line layer 160 and thickening layer 190 is greater than the thickness in other regions.
Since fluted 141 being arranged in bent area 300, the radius in bending of flexible OLED display panel reduces, signal
The stress that line layer 160 is subject in bent area 300 is significantly increased relative to not set groove 141, therefore in entire bent area 300
Interior setting thickening layer 190, can be enhanced the resistance to rupture of route.
300 inner groovy 141 of bent area can be set one, also can be set it is multiple, in the present embodiment, groove 141
Quantity is one, and is formed in intermediate region 303, and in bending, crooked process radius is minimum in this way.
The cross sectional shape of groove 141 can be trapezoidal, rectangle, semicircle etc., be also possible to other shapes, need to illustrate
It is that the cross sectional shape of groove 141 is the shape under the non-bending state of flexible substrate 130.
In one embodiment, the depth of groove 141 is a quarter of 140 thickness of flexible substrate to 3/4ths.
Flexible OLED display panel of the invention, is arranged groove in the flexible substrate of flexible substrate 140, simultaneously because curved
Thickening layer 190 is provided in folding area 300 on signal line layer 160, enhances the resistance to rupture of route, radius r phase when bending
The crooked process radius R that bent area is half bowlder is substantially reduced, can only accomplish to bend originally, it now is possible to realize doubling, in addition,
This structure makes bonding region total length become smaller, and the design of backboard can also accordingly be thinned, so that the frame of display panel
The size in area also reduces therewith, is conducive to improve screen accounting, promotes product competitiveness.
The present invention also provides a kind of flexible OLED displays, show including the flexible OLED in any of the above-described embodiment
Panel.
According to above-described embodiment:
The present invention provides a kind of flexible OLED display panel, including backboard, flexible substrate, signal line layer, and backboard includes the
One backboard and the second backboard；Flexible substrate is set on backboard, and flexible substrate includes the firstth area for corresponding to the first backboard, correspondence
In the secondth area of the second backboard and the bent area in connection the firstth area and the secondth area；Signal line layer is set in flexible substrate；Its
In, in bent area, flexible substrate forms fluted far from the side of signal line layer.It, can by forming groove in bent area
To reduce the crooked process radius of flexible OLED display panel, and then reduce the size of rim area, improves screen accounting.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of flexibility OLED display panel characterized by comprising
Backboard, including the first backboard and the second backboard；
Flexible substrate is set on the backboard, and the flexible substrate includes the firstth area for corresponding to first backboard, correspondence
In the secondth area of second backboard and the bent area in connection firstth area and secondth area；
Signal line layer is set in the flexible substrate；
Wherein, in the bent area, the flexible substrate forms fluted far from the side of the signal line layer.
2. flexibility OLED display panel as described in claim 1, which is characterized in that the signal line layer is being correspondingly arranged
State the thickness that the thickness in the region of groove is greater than the region of the not set groove.
3. flexibility OLED display panel as described in claim 1, which is characterized in that in the region for being provided with the groove,
The signal line layer is formed with thickening layer far from the side of the flexible substrate.
4. flexibility OLED display panel as described in claim 1, which is characterized in that the signal line layer is in the bent area
Thickness be greater than thickness in firstth area and secondth area.
5. flexibility OLED display panel as described in claim 1, which is characterized in that in the bent area, the signal wire
Layer is formed with thickening layer far from the side of the flexible substrate.
6. such as the described in any item flexible OLED display panels of claim 3 and 5, which is characterized in that the material of the thickening layer
For nano-silver thread.
7. flexibility OLED display panel as described in claim 1, which is characterized in that the quantity of the groove is one.
8. flexibility OLED display panel as claimed in claim 2, which is characterized in that the groove is formed in the bent area
Intermediate region.
9. flexibility OLED display panel as described in claim 1, which is characterized in that the cross sectional shape of the groove be it is trapezoidal,
One of semicircle or rectangle.
10. flexibility OLED display panel as described in claim 1, which is characterized in that the depth of the groove is the flexibility
The a quarter of substrate thickness is to 3/4ths.
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| CN201910401985.1A CN110212089B (en) | 2019-05-15 | 2019-05-15 | Flexible OLED display panel |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110751909A (en) * | 2019-10-31 | 2020-02-04 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN111524944A (en) * | 2020-04-27 | 2020-08-11 | 武汉华星光电半导体显示技术有限公司 | OLED display screen, preparation method thereof and display device |
| CN111524940A (en) * | 2020-04-26 | 2020-08-11 | 武汉华星光电半导体显示技术有限公司 | OLED display screen and preparation method thereof |
| CN113112914A (en) * | 2021-03-19 | 2021-07-13 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel, and preparation method and device of flexible display panel |
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