CN207516696U - Display base plate and display device - Google Patents
Display base plate and display device Download PDFInfo
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- CN207516696U CN207516696U CN201721751817.8U CN201721751817U CN207516696U CN 207516696 U CN207516696 U CN 207516696U CN 201721751817 U CN201721751817 U CN 201721751817U CN 207516696 U CN207516696 U CN 207516696U
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- base plate
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Abstract
The utility model provides a kind of display base plate and display device, belongs to display technology field.Wherein, display base plate, including bending region, the bending region is coated with Rheological Material, further includes the buffer structure that can stop that the Rheological Material is flowed out to except the bending region.By the technical solution of the utility model, the glue of bending region coating can be avoided to be left to except bending region, and then ensure the yield of display device.
Description
Technical field
The utility model is related to display technology fields, particularly relate to a kind of display base plate and display device.
Background technology
Existing display device can use the technology of pad Bending (circuit region bending), the skill to realize narrow frame
Understood in art in Bending (bending) region coating glue, it is curved in bending region in this way to adjust the neutral line position in bending region
During folding, enable to the stress that the cabling in bending region is subject to smaller, the cabling for bending region is hardly damaged；The glue of coating simultaneously
Water also is able to the permeating corrosion for preventing external water oxygen to bending region.
However during glue is coated, since glue has mobility, the marginal position after curing is difficult to control,
Coated glue have flow to bending region both sides COF (Chip On Film, chip on film) Bonding (binding) regions with
The risk in TPF (protective film) region can impact COF Bonding effects and TPF dyestripping techniques, influence display device
Yield.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of display base plate and display devices, can avoid bent area
The glue of domain coating is left to except bending region, and then ensures the yield of display device.
In order to solve the above technical problems, the embodiment offer technical solution of the utility model is as follows：
On the one hand, a kind of display base plate is provided, including bending region, the bending region is coated with Rheological Material, also
Include the buffer structure that can stop that the Rheological Material is flowed out to except the bending region.
Further, the bending region includes curved edge and un-flexed edge, and the buffer structure is included along institute
State the barricade of un-flexed edge setting.
Further, the barricade includes trapezoidal, inverted trapezoidal, triangle in the section on its own extending direction
At least one of shape, semicircle, rectangle.
Further, the buffer structure includes the obstacle for the multiple array arrangements being arranged in the bending region.
Further, the obstacle includes at least one of spherical, cylindric, rectangular cylindrical.
Further, the part in the bending region is corresponded in the buffer structure, is contacted with the Rheological Material
Surface on multiple row groove is set, the extending direction of the groove and the un-flexed edge in the bending region are substantially flat
Row.
Further, the groove includes trapezoidal, inverted trapezoidal, triangle in the section on its own extending direction
At least one of shape, semicircle, rectangle.
Further, the part in the bending region is corresponded in the buffer structure, is contacted with the Rheological Material
Surface on the grooves of multiple array arrangements is set.
Further, the groove includes trapezoidal, inverted trapezoidal, semicircle in the section on the display base plate direction
At least one of shape, rectangle.
The utility model embodiment additionally provides a kind of display device, including display base plate as described above.
The embodiment of the utility model has the advantages that：
In said program, before region coating Rheological Material is bent, buffer structure is formed, is applied in this way in bending region
When covering Rheological Material, buffer structure can stop the flow velocity of Rheological Material, slow down the flowing of Rheological Material so that rheology
Property material can cure before bending region, bending COF Bonding regions of region both sides and TPF areas will not be left to
Domain, so as to ensure the yield of display device.
Description of the drawings
Fig. 1 is the schematic cross-section of existing display base plate non-display area；
Fig. 2 is the floor map of existing display base plate non-display area；
Fig. 3 is the schematic cross-section of one embodiment display base plate non-display area of the utility model；
Fig. 4 is the floor map of display base plate non-display area shown in Fig. 3；
Fig. 5 is the schematic cross-section of another embodiment display base plate non-display area of the utility model；
Fig. 6 is the floor map of display base plate non-display area shown in Fig. 5；
Fig. 7 is the schematic cross-section of another embodiment display base plate non-display area of the utility model；
Fig. 8 is the floor map of display base plate non-display area shown in Fig. 7.
Reference numeral
1 flexible substrates
2 inorganic insulation layers
3 first flatness layers
4 second flatness layers
5 glue
6 chip on film
7 anisotropic conductive adhesive pastes
8 chip on film circuit regions
9 second fan-shaped routing regions
10 bending regions
11 barricades
12 obstacles
13 grooves
14 first fan-shaped cabling areas
Specific embodiment
Embodiment technical problems to be solved, technical solution and advantage to make the utility model is clearer, below will
It is described in detail in conjunction with the drawings and the specific embodiments.
Existing display device can use the technology of pad Bending, can bent in the technology to realize narrow frame
Region coating glue to adjust the neutral line position in bending region, in this way when bending region bending, enables to bending region
The stress that is subject to of cabling it is smaller, the cabling for bending region is hardly damaged；The glue of coating also is able to prevent external water oxygen simultaneously
To bending the permeating corrosion in region.
However during glue is coated, since glue has mobility, as depicted in figs. 1 and 2, the side after curing
Edge position is difficult to control, and bending the glue 5 coated by region 10 has 8 He of chip on film circuit region for flowing to bending region both sides
The risk in TPF regions can impact COF Bonding effects and TPF dyestripping techniques, influence the yield of display device.It is existing
Have in technology, bend chip on film circuit region and TPF that the glue coated by region flows to bending region both sides in order to prevent
The bigger gluing flowing space is reserved in region in bending region both sides, but reserved space is more difficult to control, and in this way
It is unfavorable for the narrow frame design of display device.
The embodiment of the utility model can be avoided curved in view of the above-mentioned problems, provide a kind of display base plate and display device
The glue of folding region coating is left to except bending region, and then ensures the yield of display device.
The utility model embodiment provides a kind of display base plate, and including bending region, the bending region is coated with rheology
Property material, the display base plate further include can stop Rheological Material flow out to it is described bending region except buffer structure.
In the present embodiment, before region coating Rheological Material is bent, buffer structure is formed, is applied in this way in bending region
When covering Rheological Material, buffer structure can slow down the flowing of Rheological Material so that Rheological Material can be beyond bending
Cure before region, the bending COF Bonding regions of region both sides and TPF regions will not be flowed to, so as to ensure display device
Yield.
The bending region includes curved edge and un-flexed edge, and in a specific embodiment, buffer structure can include
Along it is described bending region un-flexed edge set barricade, barricade can stop Rheological Material flow out to bending region it
Outer region.Specifically, the barricade the section on its own extending direction include trapezoidal, inverted trapezoidal, triangle,
At least one of semicircle, rectangle, certainly, barricade is not limited to above-mentioned shape in the section on its own extending direction
Shape can also be other shapes.
In another specific embodiment, buffer structure can include the multiple array arrangements being arranged in the bending region
Obstacle, obstacle can slow down the flowing of Rheological Material, contribute to Rheological Material can be before bending region
Curing.Specifically, the obstacle is at least one of spherical, cylindric and rectangular cylindrical, and certainly, obstacle is not limited to
Above-mentioned shape can also be other shapes.
In another specific embodiment, corresponded in the buffer structure it is described bending region part, with the rheological characteristic
Multiple row groove, the extending direction of the groove and the un-flexed edge in the bending region are set on the surface of material
It is substantially parallel.Groove can stop the flowing of Rheological Material, contribute to Rheological Material can be before bending region
Curing, additionally it is possible to increase its cohesive force with display base plate after Rheological Material curing so that Rheological Material is formed by curing
Organic film be not easy to come off from display base plate.Specifically, the groove is in the section on its own extending direction
Including at least one of trapezoidal, inverted trapezoidal, triangle, semicircle, rectangle.Certainly, groove is perpendicular to its own extending direction
On section be not limited to above-mentioned shape, can also be other shapes.
In another specific embodiment, corresponded in the buffer structure it is described bending region part, with the rheological characteristic
The groove of multiple array arrangements is set on the surface of material.Groove can stop the flowing of Rheological Material, help to flow
Denaturation material can cure before bending region, additionally it is possible to increase itself and display base plate after Rheological Material curing
Cohesive force so that the organic film that Rheological Material is formed by curing is not easy to come off from display base plate.Specifically, the groove exists
Section on the display base plate direction includes at least one of trapezoidal, inverted trapezoidal, semicircle, rectangle, certainly, groove
Above-mentioned shape is not limited in the section on the display base plate direction, can also be other shapes.
Below by taking Rheological Material is glue as an example, with reference to the display of attached drawing and specific embodiment to the utility model
Substrate describes in detail：
In one specific embodiment, as shown in Figure 3 and Figure 4, the edge of the display base plate of the present embodiment include be arranged on it is soft
Property substrate 1 on the first fan-shaped fan-shaped cabling area 9 of cabling area 14, second, the fan-shaped cabling area 14 of covering first and the second sector are walked
The inorganic insulation layer 2 in line area 9 is provided with bending region 10 on inorganic insulation layer 2, bends flat covered with first on region 10
Organic resin material making may be used in 3 and second flatness layer 4 of layer, the first flatness layer 3 and the second flatness layer 4.In bending region
Except 10, chip on film circuit region 8 is additionally provided with, chip on film 6 passes through anisotropic conductive adhesive paste 7 and chip on film circuit region
8 bind together.
As shown in Figure 3 and Figure 4, barricade 11 is provided on the second flatness layer 4, barricade 11 is non-curved along bending region 10
Curl edge extends, while the multiple columnar obstacles 12 of array arrangement in the region limited in barricade 11, in this way in bending region
During 10 top coating glue 5, barricade 11 can stop the region that glue 5 is flowed out to except bending region 10, while obstacle 12
The flowing of glue 5 can be slowed down, glue 5 is contributed to cure before bending region 10, in this way, passing through barricade 11 and blocking
Glue 5 can be limited in bending region 10 by the setting of object 12, and the glue 5 of coating is avoided to be left to chip on film circuit region 8
And other regions.
In another specific embodiment, as shown in Figure 5 and Figure 6, the edge of the display base plate of the present embodiment, which includes, to be arranged on
The first fan-shaped fan-shaped cabling area 9 of cabling area 14, second in flexible substrates 1, the fan-shaped cabling area 14 and second of covering first are fan-shaped
The inorganic insulation layer 2 in cabling area 9 is provided with bending region 10 on inorganic insulation layer 2, bends flat covered with first on region 10
Organic resin material making may be used in smooth 3 and second flatness layer 4 of layer, the first flatness layer 3 and the second flatness layer 4.In bent area
Except domain 10, chip on film circuit region 8 is additionally provided with, chip on film 6 passes through anisotropic conductive adhesive paste 7 and chip on film circuit region
Domain 8 is bound together.
As shown in Figure 5 and Figure 6, barricade 11 is provided on the second flatness layer 4, barricade 11 is non-curved along bending region 10
Curl edge extends, while is formed with multiple grooves 13 of array arrangement on 4 surface of the second flatness layer, in this way on bending region 10
During side's coating glue 5, barricade 11 can stop the region that glue 5 is flowed out to except bending region 10, while groove 13 can subtract
The flowing of slow glue 5 contributes to glue 5 that can cure before bending region 10, additionally it is possible to increase after the curing of glue 5
Its cohesive force with display base plate so that the glue-line that glue 5 is formed by curing is not easy to come off from display base plate.In this way, pass through gear
Glue 5 can be limited in bending region 10 by the setting of wall 11 and groove 13, and the glue 5 of coating is avoided to be left to chip on film electricity
Road region 8 and other regions.
In another specific embodiment, as shown in Figure 7 and Figure 8, the edge of the display base plate of the present embodiment, which includes, to be arranged on
The first fan-shaped fan-shaped cabling area 9 of cabling area 14, second in flexible substrates 1, the fan-shaped cabling area 14 and second of covering first are fan-shaped
The inorganic insulation layer 2 in cabling area 9 is provided with bending region 10 on inorganic insulation layer 2, bends flat covered with first on region 10
Organic resin material making may be used in smooth 3 and second flatness layer 4 of layer, the first flatness layer 3 and the second flatness layer 4.In bent area
Except domain 10, chip on film circuit region 8 is additionally provided with, chip on film 6 passes through anisotropic conductive adhesive paste 7 and chip on film circuit region
Domain 8 is bound together.
As shown in Figure 7 and Figure 8, barricade 11 is provided on the second flatness layer 4, barricade 11 is non-curved along bending region 10
Curl edge extends, while multiple row groove 13 is formed on 4 surface of the second flatness layer, extending direction and the bending region 10 of groove 13
Un-flexed edge it is substantially parallel, in this way bend region 10 above coating glue 5 when, barricade 11 can stop that glue 5 flows out
Region to except bending region 10, while groove 13 can slow down the flowing of glue 5, contribute to glue 5 can be beyond curved
Cure before folding area domain 10, additionally it is possible to increase its cohesive force with display base plate after the curing of glue 5 so that glue 5 cures shape
Into glue-line be not easy to come off from display base plate.In this way, glue 5 can be limited to by the setting of barricade 11 and groove 13 curved
In folding area domain 10, the glue 5 of coating is avoided to be left to chip on film circuit region 8 and other regions.
The utility model embodiment additionally provides a kind of display device, including display base plate as described above.The display
Device can be：Any product or component with display function such as TV, display, Digital Frame, mobile phone, tablet computer,
Wherein, the display device further includes flexible PCB, printed circuit board and backboard.
The utility model embodiment additionally provides a kind of production method of display base plate, and the display base plate includes can be curved
Bent bending region, the production method include：
Before the bending region coating Rheological Material, it is described that formation can stop that the Rheological Material flows out to
Bend the buffer structure except region.
In the present embodiment, before region coating Rheological Material is bent, buffer structure is formed, is applied in this way in bending region
When covering Rheological Material, buffer structure can hinder the flowing for slowing down Rheological Material so that Rheological Material can be beyond curved
Cure before the domain of folding area, the bending COF Bonding regions of region both sides and TPF regions will not be flowed to, so as to ensure display dress
The yield put.
Further, the bending region includes curved edge and un-flexed edge, forms the buffer structure and includes：
Insulation material layer is formed on the bending region, coats photoresist over which layer of insulating material；
The photoresist is exposed, photoresist is formed after development and retains region and photoresist removal region, the light
Photoresist retains region and extends along the un-flexed edge；
The insulation material layer in the photoresist removal region is removed, and removes the photoresist that the photoresist retains region,
Form the barricade along the un-flexed edge extension.
Alternatively, the gear extended along the un-flexed edge can also be formed using insulating materials by InkJet printing processes
Wall.
Barricade can stop the region that Rheological Material is flowed out to except bending region.Specifically, the barricade is vertical
Include at least one of trapezoidal, inverted trapezoidal, triangle, semicircle, rectangle in the section on its own extending direction, certainly, gear
Wall is not limited to above-mentioned shape in the section on its own extending direction, can also be other shapes.
Further, the buffer structure is formed to include：
Insulation material layer is formed on the bending region, coats photoresist over which layer of insulating material；
The photoresist is exposed, photoresist is formed after development and retains region and photoresist removal region, the light
Photoresist retains region in the bending region array arrangement；
The insulation material layer in the photoresist removal region is removed, and removes the photoresist that the photoresist retains region,
The obstacle of multiple array arrangements is formed in the bending region；
It is arranged alternatively, multiple arrays can also be formed in the bending region using insulating materials by InkJet printing processes
The obstacle of cloth.
Obstacle can slow down the flowing of Rheological Material, contribute to Rheological Material can be before bending region
Curing.Specifically, the obstacle is at least one of spherical, cylindric, rectangular cylindrical, and certainly, obstacle does not limit to
Can also be other shapes in above-mentioned shape.
Further, the bending region includes curved edge and un-flexed edge, forms the buffer structure and includes：
Flatness layer is formed on the bending region, photoresist is coated on the flatness layer；
The photoresist is exposed, photoresist is formed after development and retains region and photoresist removal region, the light
The un-flexed edge that photoresist removes region and the bending region is substantially parallel；
The flatness layer in the photoresist removal region is removed, and removes the photoresist that the photoresist retains region, in institute
State formation multiple row groove on the surface that flatness layer is contacted with the Rheological Material, the extending direction of the groove and the bending
The un-flexed edge in region is substantially parallel.
Groove can slow down the flowing of Rheological Material, contribute to Rheological Material can be solid before bending region
Change, additionally it is possible to increase its cohesive force with display base plate after Rheological Material curing so that Rheological Material was formed by curing
Organic film is not easy to come off from display base plate.Specifically, the groove wraps in the section on its own extending direction
Include at least one of trapezoidal, inverted trapezoidal, triangle, semicircle, rectangle.Certainly, groove is on its own extending direction
Section be not limited to above-mentioned shape, can also be other shapes.
Further, the buffer structure is formed to include：
Flatness layer is formed on the bending region, photoresist is coated on the flatness layer；
The photoresist is exposed, photoresist is formed after development and retains region and photoresist removal region, the light
Photoresist removes region in the bending region array arrangement；
The flatness layer in the photoresist removal region is removed, and removes the photoresist that the photoresist retains region, in institute
State the groove that multiple array arrangements are formed on the surface that flatness layer is contacted with the Rheological Material.
Groove can slow down the flowing of Rheological Material, contribute to Rheological Material can be solid before bending region
Change, additionally it is possible to increase its cohesive force with display base plate after Rheological Material curing so that Rheological Material was formed by curing
Organic film is not easy to come off from display base plate.Specifically, the groove is in the section on the display base plate direction
For at least one of trapezoidal, inverted trapezoidal, semicircle, rectangle, certainly, groove is in the section on the display base plate direction
Above-mentioned shape is not limited to, can also be other shapes.
Unless otherwise defined, the technical term or scientific terminology that the disclosure uses should be the utility model fields
The ordinary meaning that the interior personage with general technical ability is understood." first ", " second " and the similar word used in the disclosure
Language is not offered as any sequence, quantity or importance, and is used only to distinguish different component parts." comprising " or " packet
Containing " etc. similar word mean to occur element before the word either object cover appear in the word presented hereinafter element or
Object and its equivalent, and it is not excluded for other elements or object.The similar word such as " connection " or " connected " is not limited to
Physics or mechanical connection, but electrical connection can be included, it is either directly or indirect." on ", " under ",
"left", "right" etc. is only used for representing relative position relation, and after the absolute position for being described object changes, then the relative position is closed
System may also correspondingly change.
It is appreciated that ought such as layer, film, region or substrate etc element be referred to as be located at another element "above" or "below"
When, the element can " direct " "above" or "below" another element or there may be intermediary element.
The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art
For personnel, under the premise of principle described in the utility model is not departed from, several improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (10)
1. a kind of display base plate, including bending region, the bending region is coated with Rheological Material, which is characterized in that also wraps
Include the buffer structure that can stop that the Rheological Material is flowed out to except the bending region.
2. display base plate according to claim 1, which is characterized in that the bending region includes curved edge and un-flexed
Edge, the buffer structure include the barricade along the un-flexed edge setting.
3. display base plate according to claim 2, which is characterized in that the barricade is on its own extending direction
Section include trapezoidal, inverted trapezoidal, triangle, semicircle, at least one of rectangle.
4. display base plate according to claim 1, which is characterized in that the buffer structure includes being arranged on the bent area
The obstacle of multiple array arrangements in domain.
5. display base plate according to claim 4, which is characterized in that the obstacle includes spherical, cylindric, rectangular column
At least one of shape.
6. display base plate according to claim 2, which is characterized in that the bending region is corresponded in the buffer structure
Part sets multiple row groove, the extending direction of the groove and the bending on the surface contacted with the Rheological Material
The un-flexed edge in region is substantially parallel.
7. display base plate according to claim 6, which is characterized in that the groove is on its own extending direction
Section include trapezoidal, inverted trapezoidal, triangle, semicircle, at least one of rectangle.
8. display base plate according to claim 1, which is characterized in that the bending region is corresponded in the buffer structure
Part sets the groove of multiple array arrangements on the surface contacted with the Rheological Material.
9. display base plate according to claim 8, which is characterized in that the groove is perpendicular to the display base plate direction
On section include trapezoidal, inverted trapezoidal, semicircle, at least one of rectangle.
10. a kind of display device, which is characterized in that including display base plate as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721751817.8U CN207516696U (en) | 2017-12-15 | 2017-12-15 | Display base plate and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721751817.8U CN207516696U (en) | 2017-12-15 | 2017-12-15 | Display base plate and display device |
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| Publication Number | Publication Date |
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| CN207516696U true CN207516696U (en) | 2018-06-19 |
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| CN201721751817.8U Active CN207516696U (en) | 2017-12-15 | 2017-12-15 | Display base plate and display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870839A (en) * | 2019-04-03 | 2019-06-11 | 友达光电（昆山）有限公司 | Display panel |
| WO2019114387A1 (en) * | 2017-12-15 | 2019-06-20 | 京东方科技集团股份有限公司 | Display substrate and manufacturing method thereof, and display device |
| US11825730B2 (en) | 2019-07-24 | 2023-11-21 | Au Optronics Corporation | Display |
-
2017
- 2017-12-15 CN CN201721751817.8U patent/CN207516696U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019114387A1 (en) * | 2017-12-15 | 2019-06-20 | 京东方科技集团股份有限公司 | Display substrate and manufacturing method thereof, and display device |
| US11387429B2 (en) | 2017-12-15 | 2022-07-12 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Display substrate having a buffer structure, manufacturing method thereof and display apparatus |
| CN109870839A (en) * | 2019-04-03 | 2019-06-11 | 友达光电（昆山）有限公司 | Display panel |
| CN109870839B (en) * | 2019-04-03 | 2021-03-12 | 友达光电（昆山）有限公司 | Display panel |
| US11825730B2 (en) | 2019-07-24 | 2023-11-21 | Au Optronics Corporation | Display |
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