CN206022368U - A kind of flexible display apparatus - Google Patents
A kind of flexible display apparatus Download PDFInfo
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- CN206022368U CN206022368U CN201620919870.3U CN201620919870U CN206022368U CN 206022368 U CN206022368 U CN 206022368U CN 201620919870 U CN201620919870 U CN 201620919870U CN 206022368 U CN206022368 U CN 206022368U
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Abstract
This utility model provides a kind of flexible display apparatus, including：Display module, including：The flexible base board being oppositely arranged and thin-film encapsulation layer, and the display unit being arranged between the flexible base board and the thin-film encapsulation layer；Barrier layer, is arranged in the thin-film encapsulation layer, for stopping that water oxygen is passed through；And touch-control module, it is formed on the barrier layer；Wherein, the thickness on barrier layer is 20 μm～40 μm.This utility model is by touch-control module is arranged on the barrier layer, save binding agent, the thickness on barrier layer is 20 μm～40 μm, the requirement in terms of intercepting water oxygen, Flexible Displays and touch-control module three being made over the barrier layer can be taken into account, the general thickness for advantageously reducing flexible display apparatus is relatively thin.
Description
Technical field
This utility model is related to display technology field, specifically, is related to a kind of flexible display apparatus.
Background technology
Flexible display apparatus have the advantages that rollable, impact resistance, shock resistance strong, small volume, easy to carry, with skill
The progress of art, flexible display apparatus have obtained increasingly being widely applied, and develop to lightening direction.Flexible display apparatus institute
The underlay substrate for using must be flexible base board, such as polyimides (PI), cannot use the rigid substrates such as glass substrate during encapsulation
It is packaged, and film encapsulation method is usually used and is packaged.
Display unit that flexible display apparatus generally include to be sequentially located on flexible base board, thin-film encapsulation layer, barrier layer and
Cover plate etc..At present, in order to realize the touch controllable function of display device, it usually needs embedded touch controllable function structure.Aobvious with flexible OLED
As a example by showing panel, touch control electrode is generally positioned in the design of existing flexible OLED display panel the envelope of flexible display panels
Outside dress layer, or by adhesive bonding in the structures such as the protecting film of display screen, polariser.
But, the adhesion technique of the manufacturing process comprising touch control electrode of this flexible display panels, process complexity are high, collection
Low into spending, and due to using adhesive bonding touch control electrode, causing the integral thickness that increased display floater.
Content of the invention
For the problem that prior art is present, this utility model provides a kind of flexible display apparatus, including：
Display module, including：The flexible base board being oppositely arranged and thin-film encapsulation layer, and it is arranged at the flexible base board and institute
State the display unit between thin-film encapsulation layer；
Barrier layer, is arranged in the thin-film encapsulation layer, for stopping that water oxygen is passed through；And
Touch-control module, is formed on the barrier layer；
Wherein, the thickness on the barrier layer is 20 μm～40 μm.
Preferably, the thin-film encapsulation layer is 1 with the thickness ratio on the barrier layer：2～1：1.
Preferably, the thin-film encapsulation layer is 1 with the thickness ratio on the barrier layer：1.6～1：1.4.
Preferably, the barrier layer includes that the first barrier layer being set in turn in the thin-film encapsulation layer and second stops
Layer.
Preferably, at least one of which on first barrier layer and second barrier layer is silicon nitride layer.
Preferably, adhesion layer is additionally provided between the thin-film encapsulation layer of the display module and the barrier layer.
Preferably, the thin-film encapsulation layer is multiple structure, and the thin-film encapsulation layer is by inorganic matters thin layer and Organic substance
The alternately laminated formation of thin layer.
Preferably, the touch-control module is located in the barrier layer away from the side of the thin-film encapsulation layer.
Preferably, the touch-control module includes setting the first touch control electrode layer, the insulation being formed on the barrier layer successively
Layer and second touch control electrode layer.
Preferably, the display module is organic electroluminescent display module.
Compared with prior art, the flexible display apparatus that this utility model is provided at least have the advantages that：This reality
With new by touch-control module is arranged on the barrier layer, also, the thickness on barrier layer is 20 μm～40 μm, can not only
Take into account obstruct water oxygen, Flexible Displays and can make over the barrier layer touch-control module etc. requirement, the flexible display apparatus for being total
Body thickness is reduced, and at the same time, also so that transmitance is also improved, thus improves Consumer's Experience.
Description of the drawings
Schematic cross-sections of the Fig. 1 for the flexible display apparatus of this utility model embodiment；
Schematic top plan views of the Fig. 2 for the touch-control module of this utility model embodiment.
Wherein, description of reference numerals is as follows：
10：Display module 22：Second barrier layer
11：Flexible base board 30：Touch-control module
12：Tft layer 31：First touch control electrode layer
13：Flatness layer 311：First touch control electrode
14：Anode layer 312：First touch control electrode line
15：Luminescent layer 32：Insulating barrier
16：Cathode layer 33：Second touch control electrode layer
17：Pixel defining layer 331：Second touch control electrode
18：Thin-film encapsulation layer 332：Second touch control electrode line
20：Barrier layer 34：Control unit
21：First barrier layer 40：Adhesion layer
Specific embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with multiple shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；Conversely, thesing embodiments are provided so that this practicality is new
The design of example embodiment more comprehensively and completely, and is comprehensively conveyed to those skilled in the art by type.Identical in figure
Reference represent same or similar structure, thus repetition thereof will be omitted.
The word in described expression position in this utility model and direction, is the explanation carried out by taking accompanying drawing as an example, but root
According to needing to make a change, done change is all contained in this utility model protection domain.Carry in following embodiment
And be characterized in that can be with compound use.
Fig. 1 is refer to, this utility model provides a kind of flexible display apparatus, including：Display module 10, be located at display module
On barrier layer 20 and the touch-control module 30 on barrier layer 20.Wherein, display module 10 includes the flexible base being oppositely arranged
Plate 11 and thin-film encapsulation layer 18 and the display unit being arranged between flexible base board 11 and thin-film encapsulation layer 18, the thickness on barrier layer
Spend for 20 μm～40 μm, including endpoint value.
Barrier layer 20 is used for preventing the organic material in display module 10 to be deteriorated, and prevents the moisture attacks in environment from showing
Show module 10, and barrier layer 20 is integrated to form touch-control module 30 thereon as a carrier, saves binding agent.The thickness on barrier layer
Spend for 20 μm～40 μm, the water oxygen permeability of the overcoat being made up of thin-film encapsulation layer 18 and barrier layer 20 is not more than 10g/m2·
day.
Table 1 is refer to, wherein described thickness is the thickness on barrier layer 20, and described performance is the property of flexible display apparatus
Energy.If as it can be seen from table 1 the thickness on barrier layer 20 is too low, such as less than 20 μm, will be unable to realize integrated on barrier layer 20 touching
Control module 30, while the ability for intercepting water oxygen declines；If in addition, the thickness on barrier layer 20 is too high, being such as higher than 40 μm, although have
The ability of water oxygen is preferably intercepted, and can be made thereon and made touch-control module 30, but does not realize that the thinning to equipment is wanted
Ask, the bending performance of equipment is poor, will suffer exit in future products application.Therefore, this utility model from 20 μm～
Obstruct water oxygen, Flexible Displays can be taken into account and touch-control module can be made on barrier layer 20 in the barrier layer 20 of 40 μ m thick scopes
30 this requirement in terms of three, advantageously reduce the general thickness of flexible display apparatus, meet lightening of flexible display apparatus
Exhibition trend.Also, due to the thinning of flexible display apparatus so that light transmission rate is also improved, display effect more preferably, user's body
Test more preferably.
Table 1
Display unit can be organic electroluminescent LED (Organic light emitting diode, referred to as
OLED), as organic electroluminescent LED is to steam and oxygen extreme sensitivity, organic electroluminescence is entered if there are steam and oxygen
Light emitting diode, can occur oxidation reaction with the metal material of the low work function of its cathode layer, cause in cathode layer and organic work(
Energy interlayer forms insulating barrier, causes device light.Meanwhile, the presence of steam when organic electroluminescent LED works can be lured
Send out the electrolysis that electrochemical reaction and water occur between anode layer and cathode layer to deflate, form black speck.On the other hand, organic material
Irreversible chemical reaction can occur with steam, oxygen, destroy the stability of organic molecule, reduce device light emitting efficiency.
For making the effective stop water oxygen in barrier layer 20 pass through, in a preferred embodiment, thin-film encapsulation layer 18 and barrier layer 20
Thickness ratio be 1：2～1：1, including endpoint value.With the continuous progress of encapsulation technology, thin-film encapsulation layer 18 intercepts water oxygen
Ability is more and more stronger, and in a preferred embodiment, the thickness on barrier layer 20 can be thinned to 20～40 μm, and thin-film package
Layer 18 is 1 with the thickness ratio on barrier layer 20：1.6～1：When 1.4, the overcoat that is made up of thin-film encapsulation layer 18 and barrier layer 20
Water oxygen permeability be not more than 10g/m2Day, after the thickness on barrier layer 20 is thinning to the service life of flexible display apparatus without
Significantly affect.
In a preferred embodiment, barrier layer 20 can include the first barrier layer being set in turn in thin-film encapsulation layer 18
21 and second barrier layer 22, wherein, the first barrier layer 21 is for forming the base material on the second barrier layer 22.
First barrier layer 21 and the second barrier layer 22 can be by materials such as oxide, nitride, nitrogen oxides through chemical gas
Mutually the method for manufacturing thin film such as deposition, physical vapour deposition (PVD) is formed.As an example, oxide can select aluminium oxide, zirconium oxide, oxidation
Zinc, titanium oxide, magnesium oxide, silicon oxide, nitride can select silicon nitride, aluminium nitride, titanium nitride, and nitrogen oxides can select nitrogen oxidation
Silicon, aluminum oxynitride, titanium oxynitrides.In a preferred embodiment, at least one of which on the first barrier layer 21 and the second barrier layer 22
For silicon nitride layer.Certainly, the second barrier layer 22 can also be prepared by Organic substance and be formed.In this case, Organic substance can be by
It is polymeric material (such as acryl resin, epoxy, polyimides, polyethylene etc.).
In a preferred embodiment, adhesion layer is additionally provided between the thin-film encapsulation layer 18 of display module 10 and barrier layer 20
40, adhesion layer 40 is used for for previously prepared barrier layer 20 and the touch-control module 30 on barrier layer 20 being attached at display module
On 10, adhesion layer 40 can be formed by optically clear adhesive (OCA) material, and OCA binding agents have the advantages that light transmission rate is high,
Go out light as what 40 material of adhesion layer did not affect flexible display apparatus.Adhesion layer 40 can also be realized using pressure sensitive adhesive (PSA)
Barrier layer 20 is sticked on display module 10.
Display module 10 is preferably organic electroluminescent display module, the display unit in organic electroluminescent display module
At least include anode layer 14, luminescent layer 15 and cathode layer 16, and may further include hole injection layer, hole transmission layer,
One or more layers (not shown) in electronic barrier layer, hole blocking layer, electron transfer layer, electron injecting layer.Organic electroluminescence is sent out
The material adopted by the structure and each functional layer adopted by light display module adopts known technology, will not be described here.
Flexible base board 11 can be formed by known materials, such as polyimides (PI), polyethylene terephthalate
(PET).Tft layer 12 is further provided between flexible base board 11 and display unit, and tft layer 12 at least includes
Anode layer in active layer, source electrode, drain electrode, grid, insulating barrier (not shown), the source electrode of tft layer 12 and display unit
14 are electrically connected with.Tft layer 12 adopts known structure, will not be described here.
Further, tft layer 12 is additionally provided with flatness layer 13, and the anode layer 14 in display unit is located at should
It is electrically connected with the drain electrode of tft layer 12 on flatness layer 13 and by being located at the via in flatness layer 13.Flatness layer 13 enters
One step is provided with pixel defining layer 17, and display module 10 is limited multiple pixel regions by pixel defining layer 17.
Thin-film encapsulation layer 18 is used for separating display module 10 and surrounding, prevents the moisture attacks in environment from showing mould
Organic substance in block 10, the thin-film encapsulation layer 18 can be the inorganic matters thin film of monolayer, or by inorganic matters thin film
Plural layers with the alternately laminated formation of organic thin film.Wherein, the material of inorganic matters thin film can be with the material on barrier layer 20
Identical or different, the material of organic thin film can enumerate such as polyimides, polyamide, Merlon, polypropylene, polypropylene
Acid, polyacrylate, urethane acrylate, polyester, polyethylene, polystyrene, polysiloxanes, polysilazane.Formed is thin
Film encapsulated layer 18 is 1 with the thickness ratio on barrier layer 20：2～1：1, the i.e. thickness on barrier layer 20 are less than thin-film encapsulation layer 18
The twice of thickness.
Located at touch-control module 30 of the barrier layer 20 on the side of thin-film encapsulation layer 18, touch-control module 30 can adopt electric capacity
Formula touch-control module, it would however also be possible to employ electric resistance touch-control module, this utility model are not limited in its kind.With capacitive touch-control module it is
Example, which is divided into self-capacitance and mutual capacitance type again.
Fig. 1 and Fig. 2 is refer to, by taking mutual capacitance type touch control module as an example, which is included on barrier layer 20 touch-control module 30
The first touch control electrode layer 31, insulating barrier 32 and second touch control electrode layer 33.Definition line direction is X-direction, and column direction is Y side
To in the present embodiment, X-direction is vertical with Y-direction.Wherein, the first touch control electrode layer 31 includes multiple extension and along X side along Y-direction
To multiple first touch control electrodes 311 of arrangement, second touch control electrode layer 33 includes multiple extension in X direction and along Y-direction arrangement
Multiple second touch control electrodes 331, wherein, each first touch control electrode 311 and second touch control electrode 331 are in flexible base board 11
Orthographic projection has overlapping region so that two arrays of electrodes forms coupled capacitor where intersecting.It is to be clearly shown that first touches in Fig. 2
Control electrode 311 and the position relationship of second touch control electrode 331, not shown insulating barrier 32.Each first touch control electrode 311 and second
Touch control electrode 331 is electrically connected with control unit 34 by the first touch control electrode line 312 and second touch control electrode line 332 respectively,
In one embodiment, control unit 34 includes flexible printed circuit board and the control chip (IC) being electrically connected with, control unit 34, first
Touch control electrode line 312 and second touch control electrode line 332 are alternatively located in the non-display area of flexible display apparatus.Control unit 34 passes through
First touch control electrode line 312 and second touch control electrode line 332 are respectively to multiple first touch control electrodes 311 and multiple second touch-controls electricity
Pole 331 provides signal.
In one embodiment, the first touch control electrode 311 is used as touch-control drive electrode, and second touch control electrode 331 is used as to touch
Control sensing electrode, the touch-control drive electrode and touch-control sensing electrode define the two-stage of coupled capacitor, and control unit 34 is by multiple
First touch control electrode line 312 provides touch-control drive signal to multiple first touch control electrodes 311, and control unit 34 is touched by multiple second
Control electrode wires 332 provide touch sense signals to multiple second touch control electrodes 331.When touch-control occurs, such as when the handss of operator
Refer to when touching in display device, can affect the coupling between two electrodes near touch point, so change two electrodes it
Between coupled capacitor size.The signal that control unit 34 is sensed according to second touch control electrode 331, such as capacitance change data,
The coordinate of touch point is calculated, so that it is determined that the position of touch point.The touching of this utility model embodiment is only schematically described herein
Control module 30 carries out the mode of touch-control, but concrete touch control manner is not so limited.
In a preferred embodiment, on barrier layer 20, in other words touch-control module 30 is integrated in, touch-control module 30 and barrier layer
20 is integral type structure, during making, touch-control module 30 is merged with barrier layer 20 making and forms a complex function structure, i.e. touch-control
Module 30 is formed on barrier layer 20, then by adhesion layer 40 by previously prepared including barrier layer 20 and touch-control module 30
Complex function structure is attached on display module 10.By touch-control module 30 is integrated on barrier layer 20, can reduce and have
The film layer quantity of the flexible display apparatus of touch control detection function, is conducive to flexible display apparatus to develop to lightening direction.Additionally,
As film layer quantity is reduced, the light transmission rate of flexible display apparatus accordingly increases, so as to lift its display effect and bending performance；
On the other hand, touch-control module 30 be arranged at barrier layer 20 on the side of thin-film encapsulation layer 18, neighbouring touch location, touch-control
Sensitivity is higher, and the signal interference to display module 10 is less.
In touch-control module 30, the first touch control electrode layer 31 and second touch control electrode layer 33 can be made up of metal material,
Can be made up of conducting metal oxide material, as an example, metal material can adopt gold, silver, copper, magnesium, aluminum, zinc and its group
Close, conducting metal oxide can using tin indium oxide (ITO), Al-Doped ZnO (AZO), indium-doped zinc oxide (IZO), mix antimony two
Stannum oxide (ATO).In one embodiment, the first touch control electrode layer 31 and second touch control electrode layer 33 are by with good conductive
The indium tin oxide material of property and light transmission rate is made.Insulating barrier 32 can be made up of the high insulating dielectric materials of light transmission rate, such as
Polyethylene terephthalate (PET).
It should be noted that the cover plate for preventing touch-control module 30 to be scratched can be further provided with touch-control module 30, cover
The setting of plate adopts known technology, will not be described here.
In one embodiment, flexible display apparatus are formed by following steps：
(1) the first rigid carrier is provided, on first rigid carrier, forms display module 10, be included in first rigidity
Substrate sequentially forms flexible base board 11, anode layer 14, luminescent layer 15 and cathode layer 16, anode layer 14, luminescent layer 15 and cathode layer
16 display units for constituting display modules, and the display unit is packaged to form thin-film encapsulation layer 18.
In one embodiment, in step (1) formed display unit before, be additionally included on flexible base board 11 formed thin
Film transistor layer 12 and flatness layer 13.
(2) the second rigid carrier is provided, barrier layer 20 is prepared on the second rigid carrier, be included in second rigid carrier
On be sequentially prepared the first barrier layer 21 and the second barrier layer 22.
(3) touch-control module 30 is formed on the second barrier layer 22, be included on second barrier layer 22 and be sequentially prepared first
Touch control electrode layer 31, insulating barrier 32 and second touch control electrode layer 33.
(4) the second rigid carrier is removed, and is formed on the side on the second barrier layer 22 on the first barrier layer 21 viscous
Attached layer 40.
(5) barrier layer 20 and the touch-control module 30 on barrier layer 20 are attached at display module 10 by adhesion layer 40
On, the first rigid substrates are removed, flexible display apparatus are obtained.
This utility model saves binding agent, and the thickness on barrier layer by touch-control module is arranged on the barrier layer
Spend for 20-40um, wanting in terms of can taking into account obstruct water oxygen, Flexible Displays and touch-control module three being made over the barrier layer
Ask, advantageously reduce the general thickness of flexible display apparatus so that light transmittance is improved.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as that one of ordinary skill in the art is without departing from this utility model to restriction of the present utility model
Principle and objective in the case of above-described embodiment can be changed in the range of this utility model, change, replace and
Modification.
Claims (10)
1. a kind of flexible display apparatus, it is characterised in that include：
Display module, including：The flexible base board being oppositely arranged and thin-film encapsulation layer, and it is arranged at the flexible base board and described thin
Display unit between film encapsulated layer；
Barrier layer, is arranged in the thin-film encapsulation layer, for stopping that water oxygen is passed through；And
Touch-control module, is formed on the barrier layer；
Wherein, the thickness on the barrier layer is 20 μm～40 μm.
2. flexible display apparatus according to claim 1, it is characterised in that the thin-film encapsulation layer and the barrier layer
Thickness ratio is 1：2～1：1.
3. flexible display apparatus according to claim 2, it is characterised in that the thin-film encapsulation layer and the barrier layer
Thickness ratio is 1：1.6～1：1.4.
4. flexible display apparatus according to claim 1, it is characterised in that the barrier layer includes being set in turn in described
The first barrier layer and the second barrier layer in thin-film encapsulation layer.
5. flexible display apparatus according to claim 4, it is characterised in that first barrier layer and described second stops
At least one of which of layer is silicon nitride layer.
6. flexible display apparatus according to claim 1, it is characterised in that the thin-film encapsulation layer and the barrier layer it
Between be additionally provided with adhesion layer.
7. flexible display apparatus according to claim 1, it is characterised in that the thin-film encapsulation layer is multiple structure, institute
State thin-film encapsulation layer to be formed with organic thin film layer is alternately laminated by inorganic matters thin layer.
8. flexible display apparatus according to claim 1, it is characterised in that the touch-control module is located in the barrier layer
Side away from the thin-film encapsulation layer.
9. flexible display apparatus according to claim 8, it is characterised in that the touch-control module includes being sequentially formed in institute
State the first touch control electrode layer on barrier layer, insulating barrier and second touch control electrode layer.
10. flexible display apparatus according to claim 1 to 9 any one, it is characterised in that the display module is for having
Organic electro luminescent display module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620919870.3U CN206022368U (en) | 2016-08-22 | 2016-08-22 | A kind of flexible display apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620919870.3U CN206022368U (en) | 2016-08-22 | 2016-08-22 | A kind of flexible display apparatus |
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| CN206022368U true CN206022368U (en) | 2017-03-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952938A (en) * | 2017-05-16 | 2017-07-14 | 上海天马微电子有限公司 | A kind of flexible display apparatus and its manufacture method and flexible display device |
| CN113270454A (en) * | 2021-04-19 | 2021-08-17 | 昆山国显光电有限公司 | Display panel and display device |
-
2016
- 2016-08-22 CN CN201620919870.3U patent/CN206022368U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952938A (en) * | 2017-05-16 | 2017-07-14 | 上海天马微电子有限公司 | A kind of flexible display apparatus and its manufacture method and flexible display device |
| CN106952938B (en) * | 2017-05-16 | 2020-06-02 | 上海天马微电子有限公司 | Flexible display device, manufacturing method thereof and flexible display equipment |
| US10871842B2 (en) | 2017-05-16 | 2020-12-22 | Shanghai Tianma Micro-electronics Co., Ltd. | Flexible display device, fabrication method and electronic device thereof |
| CN113270454A (en) * | 2021-04-19 | 2021-08-17 | 昆山国显光电有限公司 | Display panel and display device |
| CN113270454B (en) * | 2021-04-19 | 2022-10-21 | 昆山国显光电有限公司 | Display panel and display device |
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