CN110379308A - Display device and preparation method thereof - Google Patents
Display device and preparation method thereof Download PDFInfo
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- CN110379308A CN110379308A CN201910595228.2A CN201910595228A CN110379308A CN 110379308 A CN110379308 A CN 110379308A CN 201910595228 A CN201910595228 A CN 201910595228A CN 110379308 A CN110379308 A CN 110379308A
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- supporting layer
- bending
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- viewing area
- bending part
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The embodiment of the invention discloses a kind of display devices and preparation method thereof.The display device includes screen body, and including the non-display area outside viewing area and viewing area, wherein non-display area includes bending part and bending extension；First supporting layer, above viewing area, between viewing area and bending extension, first supporting layer has with viewing area and the Chong Die first part of part non-display area and the second part Chong Die with bending part, second part bending or is cutting away a part in close bending part side.The present invention interferes with the first supporting layer edge when avoiding screen body bending by improving the first supporting layer, slows down stress concentration, reduce the risk of screen body open circuit, improve the effect that screen body is shown.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of display device and preparation method thereof.
Background technique
OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) is used as a kind of current mode photophore
Part, because its had self-luminous, quick response, wide viewing angle and can be produced in flexible substrate the features such as due to are widely used in height
In performance display field.Currently, realize " really screen " comprehensively be one of important goal of each cell phone manufacturer (narrower frame,
Especially lower frame), and OLED flexible screen is considered as that the best solution of " really screen " may be implemented comprehensively, but at present
Flexible screen is easy stress in bending and concentrates, and organic layer, which is easy to fall off, causes display abnormal, how to prevent flexible screen body from bending
Shi Fasheng open circuit is the key technology challenge that screen develops comprehensively at present.
Summary of the invention
In a first aspect, the embodiment of the present invention provides a kind of display device, which includes: screen body, including viewing area
With the non-display area outside the viewing area, wherein the non-display area include bending part and bending extension；First supporting layer, position
Above the viewing area, between the viewing area and the bending extension, first supporting layer has and the display
The first part and second part Chong Die with the bending part of area and the overlapping of part non-display area, the second part be bent or
Person is cutting away a part close to the bending part side.
In one embodiment, the second part matches with the bending part.
In one embodiment, first supporting layer softens under particular light ray irradiation.
In one embodiment, first supporting layer includes emulsion, solvent and sensitizer.
In one embodiment, at least part of thickness of the second part is less than the thickness of first part.
In one embodiment, at least part of shape of the second part is appointing in trapezoidal, round and ellipse
It anticipates one kind.
It in one embodiment, further include the second supporting layer and keel, second supporting layer is located at bending extension
Between portion and first supporting layer, the keel is between first supporting layer and the second supporting layer.
In one embodiment, further include protective layer, the protective layer be located at the keel and first supporting layer it
Between.
Second aspect, the embodiment of the invention also provides a kind of preparation methods of display device, this method comprises: providing screen
Body, the screen body include viewing area and non-display area, and non-display area includes bending part and bending extension；
The first supporting layer is provided above the viewing area, between the viewing area and the bending extension；
Irradiate first supporting layer using specific light, until first supporting layer occur softening and with it is described curved
The shape of folding part is adapted, or first supporting layer is carried out thinned or edging close to the edge of bending part.
In one embodiment, it after first supporting layer occurs softening and is adapted with the shape of the bending part, removes
Permanent deformation occurs for first supporting layer after removing specific light and standing 5-60 seconds.
Technical solution of the present invention provides a kind of display device and preparation method thereof, which includes screen body, including
Non-display area outside viewing area and viewing area, wherein non-display area includes bending part and bending extension；First supporting layer is located at
Above viewing area, between viewing area and bending extension, the first supporting layer has Chong Die with viewing area and part non-display area
First part and the second part Chong Die with bending part, second part are bent or are cutting away a part close to bending part side.
So that when shielding body bending, the first supporting layer can be consistent with the shape of the bending part of screen body for such design, be kept away significantly
Exempt to interfere when the bending of screen body with the first supporting layer edge, therefore slowed down stress concentration, has reduced the wind of screen body open circuit
Danger improves the effect that screen body is shown.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the display device that one embodiment of the invention is provided under unbent condition.
Fig. 2 is the structural schematic diagram for the display device that one embodiment of the invention is provided under bending state.
Fig. 3 is that another embodiment of the present invention provides the structural schematic diagrams of the display device under bending state.
Fig. 4 is that another embodiment of the present invention provides the structural schematic diagrams of the display device under bending state.
Fig. 5 is the flow chart of display device preparation method provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Since the first supporting layer has manufacture and attaches tolerance, according to existing design and technique, flexible screen body is being bound
After will do it bending and fix, and when prior art preparation narrow frame display screen, need to shield body bending start line as close to the
One supporting layer side will lead to the first supporting layer and interfere with the screen body after bending, causes stress to concentrate, accordingly, there exist make to shield
The risk that organic film falls off in body, the problem for causing display abnormal.
To solve the above-mentioned problems, the embodiment of the present invention provides a kind of display device, by make the first supporting layer second
A part of method is being cut away in part bending close to bending part side, and when shielding body bending, the first supporting layer can be with screen
The shape of the bending part of body is consistent, and is interfered when largely avoided screen body bending with supporting layer edge, is slowed down stress
It concentrates, reduces the risk of screen body open circuit, improve the effect that screen body is shown.
Fig. 1 is the structural schematic diagram for the display device that one embodiment of the invention is provided under unbent condition.Fig. 2 is this
Invent the structural schematic diagram for the display device that an embodiment is provided under bending state.Referring to figs. 1 and 2, the display
Device includes screen body 110 and the first supporting layer 121.
Shielding body 110 includes the non-display area 112 (such as Fig. 1) outside viewing area 111 and viewing area 111, wherein non-display area 112
Including bending part 1121 and bending extension 1122；First supporting layer 121 is located at 111 top of viewing area, viewing area 111 and bending
Between extension 1122 (such as Fig. 2)；First supporting layer 121 has Chong Die with viewing area 111 and part non-display area 112 first
Part 100 and the second part 200 Chong Die with bending part 1121, second part 200 are bent or close to bending parts 1,211 1
A part is fallen in lateral incision.
As shown in Fig. 2, screen body 110 includes display structure and other assemblies, display structure includes pixel-driving circuit layer
With organic light emission mould group, pixel-driving circuit layer may include that (including driving is brilliant for the pixel-driving circuit to be formed in array distribution
Body pipe, switching transistor and storage capacitance etc.) etc. needed for film layer, scan line, data line, light emitting control line and power line etc. it is electric
Road, organic light emission mould group may include cathode, electron injecting layer, electron transfer layer, hole blocking layer, luminescent layer, electronic barrier layer,
Hole transmission layer, hole injection layer, anode etc..
In one embodiment, second part 200 matches with bending part 1121.As shown in Figure 1, second part 200 with it is curved
Folding part 1121 matches, i.e. the second part 200 of the first supporting layer 121 is bent, crooked radian and screen 110 bending part 1121 of body
Radian match.
In one embodiment, the first supporting layer 121 softens under particular light ray irradiation.Particular light ray includes ultraviolet light, red
Outside line and other light that the first supporting layer 121 can be made to soften, the present invention are not specifically limited in this embodiment.
First supporting layer 121 includes emulsion, solvent and sensitizer.Emulsion can be vinyl alcohol cinnamate, poly- third
The materials such as enol cinnamate and silver halide.Solvent can be the materials such as cyclohexanone, methanediamine.Sensitizer can be 5 nitre
The materials such as base acenaphthene, sodium thiosulfate.Specifically, existing first support layer material is polyethylene terephthalate
(polyethylene terephthalate, abbreviation PET), emulsion-vinyl alcohol meat is added in the present invention in PET- supporting layer
The materials such as cinnamic acid ester, solvent-cyclohexanone, -5 nitro acenaphthene of sensitizer, under ultraviolet light, the first supporting layer 121 occurs soft
Change, the shape that second part 200 can be bent with bending part 1121 matches.In addition to this, it is added in PET- supporting layer
The materials such as emulsion-POLYPROPYLENE GLYCOL cinnamate, solvent-cyclohexanone, -5 nitro acenaphthene of sensitizer, under the irradiation of infrared lamp,
First supporting layer 121 softens, and the shape that second part 200 can be bent with bending part 1121 matches.The present invention couple
In emulsion, solvent and sensitizer material without limitation, as long as specific light irradiation under can make the first supporting layer 121
Softening, and the material that the shape bent with screen body 110 is adapted, belong to the range of technical solution of the present invention protection.
The thickness range of first supporting layer 121 is 0.05 millimeter to 0.2 millimeter.It preferably 0.1 millimeter, can not only play
Supporting role can also save material and cost.Shield body 110 on the first supporting layer 121, the first supporting layer 121 can be to aobvious
Show that the screen body 110 of 111 position of area is played a supporting role, the stress that screen body 110 is generated when falling can also be slowed down, play buffering
Effect.The present invention for the first supporting layer thickness without limitation, meet production need.
The technical solution of the present embodiment is by realizing that the second part of the first supporting layer is bent, when making to shield body bending, first
Supporting layer and the shape of screen body bending are consistent, and reduce screen body and the first supporting layer interferes phenomenon, slow down stress collection
In, the risk of screen body open circuit is reduced, display exception is reduced, improves the effect that screen body is shown.
Referring now still to Fig. 2, which further includes the second supporting layer 122 and keel 130, and the second supporting layer 122 is located at
Bend between extension 1122 and the first supporting layer 121, keel 130 be located at the first supporting layer 121 and the second supporting layer 122 it
Between.Second 122 pairs of supporting layer bending extension 1122 plays support, protective effect.Second supporting layer 122 and screen 110 bending part of body
1121 are not overlapped.As shown in figure 3, the first supporting layer 121 matches with screen 110 bending part 1121 of body, the second supporting layer 122 with
Screen 110 bending part 1121 of body have be overlapped and match with bending part 1121, it is such design further reduce screen body 110 with
First supporting layer 121 and the second supporting layer 122 interfere, and further reduced the risk of screen body open circuit, and it is different to reduce display
Often, the effect that screen body is shown is improved.
The thickness range of keel 130 is 0.2 millimeter to 0.3 millimeter, preferably 0.25 millimeter.Keel 130 has one
Fixed thickness, can satisfy process requirements.Keel 130 can use the material of adhesive tape class, preferably with the adhesive tape of substrate,
Such as PET adhesive tape, PVC tape and PE foam tape etc..Adhesive tape with substrate can not only increase thickness as keel 130
Degree can also play the role of bonding other materials.Since the adhesive tape with substrate is relatively cheap, advantageously reduces and be produced into
This.In addition to this, keel 130 also can protect the screen body 110 for bending 1122 position of extension under the action of external force, no
Film layer can occur to fall off.
Fig. 3 is that another embodiment of the present invention provides the structural schematic diagrams of the display device under bending state.Such as Fig. 3 institute
Show, which further includes protective layer 140, and protective layer 140 is located between keel 130 and the first supporting layer 121.Protective layer
140 close to the surface of 111 side of viewing area, and the thickness range of the protective layer 140 is 0.2 millimeter to 0.3 millimeter, and preferably 0.25
Millimeter.Under by external impacts, protective layer 140 can play the role of buffering, and protection screen body is normally shown.Wherein, it protects
Layer 140 can be foam, be also possible to the material that steel disc of blacking etc. has shade function, and purpose prevents the photophore of viewing area
The light that part issues influences display device through protective layer and normally shows.Without limitation to protective layer material, other can be with by the present invention
Play the material of phase same-action all within protection scope of the present invention.
As shown in figure 3, at least part of thickness d 2 of second part 200 is less than the thickness d 1 of first part 100.I.e.
Thickness (at least part of thickness d 2 of second part 200) of one supporting layer 121 close to 1121 side of bending part is less than separate
The thickness (thickness d 1 of first part 100) of 1121 side of bending part.Thickness of second supporting layer 122 close to 1121 side of bending part
It spends d3 and is less than the thickness d 4 far from 1121 side of bending part.At least part of thickness of second part is less than in the present embodiment
The thickness of a part, increases bending part at a distance from second part, reduces second part in bending part and the first supporting layer
Contact, further prevent in this way screen body bending when interfered with the first supporting layer edge, slow down stress concentrate, reduce
The risk for shielding body open circuit improves the effect that screen body is shown.
As shown in figure 4, second part 200 cuts away a part close to 1211 side of bending part, the shape of second part is ladder
Shape.At least part of thickness d 2 of second part 200 is less than the thickness d 1 of first part 100, i.e. the first supporting layer 121 is close
The thickness d 1 of bending part side is less than the thickness d 2 far from bending part side.Thickness of second supporting layer 122 close to bending part side
It spends d3 and is equal to the thickness d 4 far from 1211 side of bending part.Wherein, the second supporting layer 122 is not be overlapped with bending part 1121.Phase
For Fig. 3, the present embodiment can not only play a supporting role, and can also save process.
In one embodiment, at least part of shape of second part 200 is any in trapezoidal, round and ellipse
It is a kind of.That is shape of the first supporting layer 121 close to 1211 side of bending part can be any one in trapezoidal, round and ellipse
Kind.As shown in Fig. 2, the first supporting layer 121 close to 1211 side of bending part shape (second part 200 it is at least part of
Shape) it is rectangle, the shape of the first supporting layer 121 and screen 110 bending part 1211 of body is adapted.As shown in figure 3, the first support
Shape of the layer 121 close to 1211 side of bending part is ellipse, the shape of the first supporting layer 121 and screen 110 bending part 1211 of body
It is adapted；Shape of second supporting layer 122 close to 1211 side of bending part is ellipse, and the second supporting layer 122 and screen body 110 are curved
The shape of folding part 1211 is adapted.As shown in figure 4, shape of first supporting layer 121 close to 1211 side of bending part be it is trapezoidal, the
The shape of one supporting layer 121 and screen 110 bending part 1211 of body is adapted.The shape of second supporting layer 122 can remain unchanged,
It can be adapted with the shape of screen 110 bending part 1211 of body.The present invention is for the first supporting layer close to the shape of bending part side
Shape is without limitation
The embodiment of the present invention provides a kind of production method of display device, and Fig. 5 is display dress provided in an embodiment of the present invention
Set the flow chart of preparation method.This method includes
Step 200: providing screen body, screen body includes viewing area and non-display area, and non-display area includes that bending part and bending are prolonged
Extending portion；
Step 210: providing the first supporting layer above viewing area, between viewing area and bending extension；
Step 220: the first supporting layer is irradiated using specific light, until softening and and bending part occur for the first supporting layer
Shape be adapted, or by the first supporting layer close to the edge of bending part carry out be thinned or edging.
In one embodiment, it after the first supporting layer occurs softening and is adapted with the shape of bending part, removes specific
Light and permanent deformation occurs for the first supporting layer after standing 5-60 seconds.
When preparing the display device of narrow frame, there are 2 kinds of methods, the first is to the first supporting layer close to the side of bending part
Edge carries out thinned or edging, that is, uses process for pressing to carry out the first supporting layer close to the edge of bending part thinned, can also adopt
With cutting the first supporting layer close to the part of the side at the edge of bending part.The first supporting layer can also be made to lean on using edging technique
The shape at the edge of nearly bending part is round or oval, and reduces the contact area with screen body, to reduce the wind of screen body fracture
Danger.Second is to irradiate the first supporting layer of addition of emulsion, solvent and sensitizer under particular light ray, makes the first supporting layer
Occur to soften and be adapted with the shape of screen body bending part, is completed until bending, the first supporting layer and screen body bending part
Shape removes specific light after mutually agreeing with, the first supporting layer generation permanent deformation after standing 5-60 seconds, and preferably 15 seconds, at this time
The first supporting layer with certain degree of hardness is consistent with shape after screen body bending, no longer changes.The so-called specific light of the present invention
Line includes ultraviolet light, infrared ray and other the light of identical function may be implemented, the present invention is not specifically limited in this embodiment.
In the production method of display device provided in an embodiment of the present invention, by make the first supporting layer occur softening and with it is curved
The shape of folding part is adapted, or the first supporting layer is carried out the techniques such as thinned or edging close to the edge of bending part, reduces screen
The problem of interfering when body is bent with the first supporting layer edge reduces the risk of screen body open circuit, improves what screen body was shown
Effect.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of display device characterized by comprising
Shield body, including the non-display area outside viewing area and the viewing area, wherein the non-display area includes bending part and bending
Extension；
First supporting layer is located above the viewing area, between the viewing area and the bending extension, first support
Layer has and the viewing area and the Chong Die first part of part non-display area and the second part Chong Die with the bending part, institute
It states second part bending or is cutting away a part close to the bending part side.
2. display device as described in claim 1, which is characterized in that the second part matches with the bending part.
3. display device as described in claim 1, which is characterized in that first supporting layer is soft under particular light ray irradiation
Change.
4. display device as described in claim 1, which is characterized in that first supporting layer includes emulsion, solvent and increasing
Feel agent.
5. display device as described in claim 1, which is characterized in that at least part of thickness of the second part is less than
The thickness of first part.
6. display device as claimed in claim 5, which is characterized in that at least part of shape of the second part is ladder
Any one in shape, circle and ellipse.
7. display device as described in claim 1, which is characterized in that it further include the second supporting layer and keel, described second
For supporting layer between the bending extension and first supporting layer, the keel is located at first supporting layer and
Between two supporting layers.
8. display device as claimed in claim 7, which is characterized in that further include protective layer, the protective layer is located at the pad
Between high block and first supporting layer.
9. a kind of preparation method of display device characterized by comprising
Screen body is provided, the screen body includes viewing area and non-display area, and non-display area includes bending part and bending extension；
The first supporting layer is provided above the viewing area, between the viewing area and the bending extension；
Irradiate first supporting layer using specific light, until first supporting layer occur softening and with the bending part
Shape be adapted, or by first supporting layer close to the edge of bending part carry out be thinned or edging.
10. the preparation method of display device as claimed in claim 9, which is characterized in that softening occurs for first supporting layer simultaneously
After being adapted with the shape of the bending part, first supporting layer occurs forever after removing specific light and standing 5-60 seconds
Long deformation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910595228.2A CN110379308A (en) | 2019-07-03 | 2019-07-03 | Display device and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910595228.2A CN110379308A (en) | 2019-07-03 | 2019-07-03 | Display device and preparation method thereof |
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| CN201910595228.2A Pending CN110379308A (en) | 2019-07-03 | 2019-07-03 | Display device and preparation method thereof |
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| CN111477670B (en) * | 2020-05-12 | 2023-09-01 | 京东方科技集团股份有限公司 | Display device |
| CN112289186A (en) * | 2020-10-26 | 2021-01-29 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN112419895A (en) * | 2020-11-18 | 2021-02-26 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and display device |
| CN112489567A (en) * | 2020-12-29 | 2021-03-12 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| US12005684B2 (en) | 2020-12-29 | 2024-06-11 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display panel and display device |
| CN113539103A (en) * | 2021-07-21 | 2021-10-22 | 武汉华星光电半导体显示技术有限公司 | Curved surface display structure and curved surface display device |
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Application publication date: 20191025 Assignee: BAZHOU YUNGU ELECTRONIC TECHNOLOGY Co.,Ltd.|KUNSHAN NEW FLAT PANEL DISPLAY TECHNOLOGY CENTER Co.,Ltd.|KUNSHAN GO-VISIONOX OPTO-ELECTRONICS Co.,Ltd. Assignor: YUNGU (GU'AN) TECHNOLOGY Co.,Ltd. Contract record no.: X2019990000155 Denomination of invention: LCD device and method for manufacturing the same License type: Common License Record date: 20191030 |
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