CN203311126U - Flexible display - Google Patents
Flexible display Download PDFInfo
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- CN203311126U CN203311126U CN2013203931824U CN201320393182U CN203311126U CN 203311126 U CN203311126 U CN 203311126U CN 2013203931824 U CN2013203931824 U CN 2013203931824U CN 201320393182 U CN201320393182 U CN 201320393182U CN 203311126 U CN203311126 U CN 203311126U
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Abstract
The utility model provides a flexible display. The flexible display comprises a display device body, a first substrate, a binding agent layer and a planarization layer and/or a water-oxygen blocking layer arranged between the first substrate and the display device body, wherein the first face of the first substrate is connected with the binding agent layer; the second face opposite to the first face of the first substrate is connected with the planarization layer and/or the water-oxygen blocking layer; the binding agent layer is a coating and the binding force between the coating and the second substrate for bearing the binding agent layer is less than 5N on the binding agent layer with the width of 20mm. According to the flexible display provided by the utility model, the binding agent layer with the low binding force is formed on the first substrate; the binding force of a binding agent is low so that the first substrate with the display device body is very easy to strip from the second substrate for bearing the binding agent layer; therefore, the production cost is reduced, the production efficiency is high and the flexible display is suitable for large-scale production.
Description
Technical field
The utility model relates to field of display, particularly relates to a kind of flexible display.
Background technology
Liquid crystal display (LCD) technology has had development by leaps and bounds in nearly ten years, to the quality shown, all obtained very much progress from the size of screen.Through continuous effort, the performance of LCD each side has reached the level of traditional C RT, and the trend that replaces CRT is arranged greatly.
Along with the continuous expansion that LCD produces, the competition between each production firm also is growing more intense.Each producer, when constantly effort reduces the production cost of product, also constantly enhances product performance again, and increases greater functionality, thereby improves the competitive power in value-added content of product and lifting market.
Along with the development of flexible display technologies, the flexibility near traditional display mode shows that product also will enter into common people house very soon more.Because flexibility shows itself distinctive flexible characteristic, determined that it has a lot of special users and experiences.
At present, the method of carrying out the plastic base attaching on the glass substrate substrate mainly contains two kinds: the first, employing is tried one's best full-bodied cementing agent by plastic base and glass substrate secure bond together, prepared after display device again with laser from the cementing agent in the middle of glass substrate back scan plastic base and glass substrate, make the ageing of binders hardening, can from glass baseplate surface, peel off easily thereby reach plastic base; The second, first by the mode of evaporation, deposition one deck Parylene, form one deck release layer on glass substrate, then polyamic acid solution is coated on glass substrate, is solidified into recycling release layer after polyimide plastic base is easily peeled off from glass substrate.
These two kinds of methods have self unavoidable disadvantage.First method, owing to using laser technology, production efficiency is lower, and cost is higher; Second method, owing to using Parylene to form release layer, and need to prepare by the mode of evaporation on glass substrate by Parylene, and the evaporation Parylene is very expensive together operation, cost is higher.
The utility model content
In order to solve existing flexible display when making, plastic base is peeled off and is needed complicated operation from the glass substrate substrate, and cost is higher, and the utility model provides a kind of flexible display.
The technical solution adopted in the utility model is: a kind of flexible display, comprise: display device body, first substrate, adhesive layer and be arranged on described first substrate and described display device body between planarization layer and/or water oxygen barrier layer, the first surface of described first substrate is connected with adhesive layer, and second relative with described first substrate first surface is connected with described planarization layer and/or water oxygen barrier layer; Described adhesive layer is and be used to the coating of the adhesion between the second substrate that carries described adhesive layer lower than the wide adhesive layer of 5N/20mm.
Further, described adhesive layer is and be used to the coating of the adhesion between the second substrate that carries described adhesive layer lower than the wide adhesive layer of 0.1N/20mm.
Further, described first substrate is plastic base.
Further, the material of described first substrate is a kind of in polyimide, Polyethylene Naphthalate, polyethylene terephthalate, fiber-reinforced plastic, polyethersulfone resin, polyarylate, polycarbonate.
Further, described second substrate is glass substrate, metal substrate, quartz base plate or organic substrate.
Further, on described display device body, also be provided with integrated circuit (IC) chip and flexible PCB.
The beneficial effects of the utility model are: the adhesive layer that forms low adhesion on the first substrate of flexible display of the present utility model, because the adhesion of cementing agent is lower, thereby make the first substrate that is formed with the display device body be easy to peel off from the second substrate be used to carrying adhesive layer, thereby reduced manufacturing cost, and production efficiency is high, be applicable to large-scale production.
The accompanying drawing explanation
Fig. 1 is preparation method's the process flow diagram of the flexible display of a kind of embodiment of the utility model;
Fig. 2 is the schematic diagram for preparing adhesive layer of a kind of embodiment of the utility model;
Fig. 3 is the bonding schematic diagram of the adhesive layer of a kind of embodiment of the utility model and second substrate;
Fig. 4 is the schematic diagram for preparing the display device body of a kind of embodiment of the utility model;
Fig. 5 is the first view of the cutting display device body of a kind of embodiment of the utility model;
Fig. 6 is the second view of the cutting display device body of a kind of embodiment of the utility model;
Fig. 7 is the first view of cutting apart flexible display of a kind of embodiment of the utility model;
Fig. 8 is the second view of cutting apart flexible display of a kind of embodiment of the utility model;
Fig. 9 is the third state schematic diagram of cutting apart flexible display of a kind of embodiment of the utility model;
Figure 10 is the schematic diagram at flexible display attaching circuit of a kind of embodiment of the utility model.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model provides a kind of flexible display, comprise: display device body, first substrate, adhesive layer and be arranged on described first substrate and described display device body between planarization layer and/or water oxygen barrier layer, the first surface of described first substrate is connected with adhesive layer, and second relative with described first substrate first surface is connected with described planarization layer and/or water oxygen barrier layer; Described adhesive layer is and be used to the coating of the adhesion between the second substrate that carries described adhesive layer lower than the wide adhesive layer of 5N/20mm.On the first substrate of flexible display of the present utility model, form the adhesive layer of low adhesion, because the adhesion of cementing agent is lower, thereby make the first substrate that is formed with the display device body be easy to peel off from the second substrate be used to carrying described adhesive layer.
Adhesive layer of the present utility model is the coating with lower adhesion, preferably and be used to the coating of the adhesion between the second substrate that carries described adhesive layer lower than the wide adhesive layer of 0.1N/20mm.First substrate of the present utility model is plastic base, and preferably, the material of first substrate is a kind of in polyimide, Polyethylene Naphthalate, polyethylene terephthalate, fiber-reinforced plastic, polyethersulfone resin, polyarylate, polycarbonate.Second substrate of the present utility model is glass substrate, metal substrate, quartz base plate or organic substrate, also on the display device body, also is provided with integrated circuit (IC) chip and flexible PCB.
Preparation process below in conjunction with flexible display is described in detail structure of the present utility model and annexation thereof:
As shown in Figure 1, the preparation method's of the flexible display of a kind of embodiment of the utility model process flow diagram, comprise the steps:
Step S101 a: first substrate is provided;
Step S102: form adhesive layer on the first surface of described first substrate;
Step S103 a: second substrate is provided;
Step S104: the surface label with described adhesive layer of described first substrate is invested on described second substrate; Wherein, the adhesion between described adhesive layer and described second substrate is lower than the wide adhesive layer of 5N/20mm;
Step S105: on second of described first substrate, form the display device body, second first surface with described first substrate of described first substrate is relative;
Step S106: the described first substrate that is formed with the display device body is peeled off from described second substrate, obtained described flexible display.
The preparation of flexible display of the present utility model is on first substrate, to form the adhesive layer of low adhesion, because the adhesion of cementing agent is lower, thereby makes the first substrate that is formed with the display device body be easy to peel off from second substrate.With existing flexible display device, preparing scheme compares, the utility model does not need laser backside to process, do not need to prepare the expensive release layer for reducing adhesion between first substrate and second substrate yet, the bad phenomenon such as substrate fold can not occur in technological process, thereby reduced manufacturing cost, and production efficiency is high, be applicable to large-scale production.
Adhesive layer of the present utility model can reduce the adhesion with second substrate, can form by silica gel, adding filler, thereby make the adhesion that does not have adhesive capacity or the poor material of adhesive capacity to reduce silica gel and first substrate.Adopt the high temperature that flexible display that silica gel makes can anti-300～500 ℃, the filler in this silica gel is corresponding also adopts resistant to elevated temperatures material, and material that can anti-300-500 ℃ high temperature gets final product.Cementing agent of the present utility model can also form by acryl resin, adding filler, thereby can be applied to the touch-screen use of 230 ℃ of heatproofs, and its filler also adopts the material of 230 ℃ of heatproofs.
Adhesive layer of the present utility model and be used to the adhesion between the second substrate that carries described adhesive layer lower than the wide adhesive layer of 5N/20mm, be preferably lower than the wide adhesive layer of 1N/20mm, more preferably, be the wide adhesive layer of 0.03N～0.1N/20mm.(this area is relatively to using adhesion that the wide object of 20mm produces as foundation to the size of adhesion, is adhesive layer due to what produce adhesion, so adhesion is to using the wide adhesive layer of 20mm as benchmark.) adhesion of adhesive layer of the present utility model is while meeting above-mentioned numerical value, can realize the attaching of first substrate and second substrate, and can easily first substrate be peeled off from second substrate.
Second substrate of the present utility model is for carrying adhesive layer and first substrate, can be one or more in glass substrate, metal substrate, quartz base plate or organic substrate.In the present embodiment, second substrate is selected glass substrate.First substrate of the present utility model is preferably thermal expansivity plastic base in 1～50ppm/ ℃ of scope, more preferably, is the plastic base in 3～20ppm/ ℃ of scope.The utility model adopts the plastic base of thermal expansivity in above-mentioned scope, to keep similar to the thermal expansivity of glass substrate, to reduce thermal shock, avoids plastic sheeting fold in vacuum high-temperature technique.The kind of plastic base can be polyimide PI, Polyethylene Naphthalate PEN, polyethylene terephtalate, fiber-reinforced plastic FRP, polyethersulfone resin PES, polyarylate PAR, polycarbonate etc.
As shown in Figure 2, be the schematic diagram for preparing adhesive layer of a kind of embodiment of the utility model, cementing agent is coated in to polyimide on the first surface of the first substrate 1 of material by nozzle 3, be prepared into adhesive layer 2.This cementing agent can be in silica gel or acryl resin, to add organism or inorganic fillers, such as adding PET(poly terephthalic acid class plastics), polyurethane, monox, titanium dioxide etc., make the adhesive layer adhesion of formation lower.This adhesive layer is because adhesion is lower, thereby makes the first substrate that is formed with the display device body without using release layer or laser treatment just can be easy to peel off from second substrate, reduced production cost, easy to operate.
As shown in Figure 3, be the adhesive layer of a kind of embodiment of the utility model and the bonding schematic diagram of second substrate.The surface label with described adhesive layer of described first substrate is invested on described second substrate to 4, and by attaching roller 5, first substrate 1 is attached on the second substrate 4 of glass material, make adhesive layer 2 and second substrate 4 fit together.Certainly, adhesive layer 2 and second substrate bonding is not limited to adopt and attaches roller, also can adopt other mode that adhesive layer is attached on second substrate, such as hand etc.
As shown in Figure 4, be the schematic diagram for preparing the display device body of a kind of embodiment of the utility model.After completing cementing agent and second substrate bonding, on second of first substrate, form planarization layer and/or water oxygen barrier layer, then on planarization layer and/or water oxygen barrier layer, form display device body 7.Wherein, between cementing agent and display device body 7, can be the water oxygen barrier layer, can be also planarization layer, can also both have concurrently, according to actual production, be configured.
As illustrated in Figures 5 and 6, schematic diagram for the cutting display device of a kind of embodiment of the utility model, in order to realize having the first substrate of display device body and peeling off of second substrate, planarization layer and/or water oxygen barrier layer at the edge of first substrate cut, form otch 8, this otch can be to become certain inclination angle, for example 30-60 degree with the first substrate surface; The recycling mechanical force, along described otch 8, is peeled off the described first substrate that is formed with the display device body from described second substrate, obtain described flexible display.Finally, then by mechanical force, first substrate 1 is taken off together with the display device body 7 on it, prepared flexible display.
As shown in Figure 7 to 9, be the schematic diagram of cutting apart flexible display of a kind of embodiment of the utility model, also comprise after on planarization layer and/or water oxygen barrier layer, forming the display device body:
Formation runs through a plurality of first fractures 9 of display device body, planarization layer and/or water oxygen barrier layer, first substrate, adhesive layer;
Formation runs through a plurality of second fractures 10 of second substrate; Wherein, described the first fracture 9 is corresponding one by one with described the second fracture 10, and each first fracture and section of the second fracture formation, obtains a plurality of independently flexible display devices, as shown in Figure 8;
The present embodiment utilizes the first fracture with the second corresponding fracture, described display device to be cut apart, as shown in Figure 8.The first fracture 9 almost overlaps with the position of the second fracture 10, makes each display screen separately to separate.To each separate display screens, for it, attach the auxiliary material such as integrated circuit (IC) chip 11 and flexible PCB 12, as shown in Figure 9 again.Finally, then the flexible display screen that whole preparation completes is taken off from glass substrate, as shown in figure 10.The present embodiment is to utilize two fractures to cut apart, and forms upper and lower two fractures, lower to the requirement of scribing wheel, imposes uniformity without examining individual cases while cutting because depth of cut need to be carried out particular design to break bar more deeply and adopt.The utility model utilizes two fractures to cut apart, and than being easier to realize cutting, and the particle produced during cutting is less.
As shown from the above technical solution, the preparation of flexible display of the present utility model is on first substrate, to form the adhesive layer of low adhesion, because the adhesion of cementing agent is lower, thereby make the first substrate that is formed with the display device body be easy to peel off from second substrate.With existing flexible display device, preparing scheme compares, the utility model does not need laser backside to process, do not need to prepare the expensive release layer for reducing adhesion between first substrate and second substrate yet, the bad phenomenon such as substrate fold can not occur in technological process, thereby reduced manufacturing cost, and production efficiency is high, be applicable to large-scale production.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. flexible display, it is characterized in that, comprise: display device body, first substrate, adhesive layer and be arranged on described first substrate and described display device body between planarization layer and/or water oxygen barrier layer, the first surface of described first substrate is connected with adhesive layer, and second relative with described first substrate first surface is connected with described planarization layer and/or water oxygen barrier layer; Described adhesive layer is and be used to the coating of the adhesion between the second substrate that carries described adhesive layer lower than the wide adhesive layer of 5N/20mm.
2. flexible display according to claim 1, is characterized in that, described adhesive layer is and be used to the coating of the adhesion between the second substrate that carries described adhesive layer lower than the wide adhesive layer of 0.1N/20mm.
3. flexible display according to claim 1 and 2, is characterized in that, described first substrate is plastic base.
4. flexible display according to claim 3, it is characterized in that, the material of described first substrate is a kind of in polyimide, Polyethylene Naphthalate, polyethylene terephthalate, fiber-reinforced plastic, polyethersulfone resin, polyarylate, polycarbonate.
5. flexible display according to claim 1, is characterized in that, described second substrate is glass substrate, metal substrate, quartz base plate or organic substrate.
6. flexible display according to claim 1, is characterized in that, also is provided with integrated circuit (IC) chip and flexible PCB on described display device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203931824U CN203311126U (en) | 2013-07-03 | 2013-07-03 | Flexible display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203931824U CN203311126U (en) | 2013-07-03 | 2013-07-03 | Flexible display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203311126U true CN203311126U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203931824U Expired - Lifetime CN203311126U (en) | 2013-07-03 | 2013-07-03 | Flexible display |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345084A (en) * | 2013-07-03 | 2013-10-09 | 京东方科技集团股份有限公司 | Flexible displayer manufacturing method and flexible displayer |
-
2013
- 2013-07-03 CN CN2013203931824U patent/CN203311126U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345084A (en) * | 2013-07-03 | 2013-10-09 | 京东方科技集团股份有限公司 | Flexible displayer manufacturing method and flexible displayer |
| CN103345084B (en) * | 2013-07-03 | 2015-12-02 | 京东方科技集团股份有限公司 | A kind of preparation method of flexible display and flexible display |
| US9622343B2 (en) | 2013-07-03 | 2017-04-11 | Boe Technology Group Co., Ltd. | Flexible display and method for preparing the same |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |