CN101852963B - Display device - Google Patents
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- CN101852963B CN101852963B CN2010101855583A CN201010185558A CN101852963B CN 101852963 B CN101852963 B CN 101852963B CN 2010101855583 A CN2010101855583 A CN 2010101855583A CN 201010185558 A CN201010185558 A CN 201010185558A CN 101852963 B CN101852963 B CN 101852963B
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- display device
- adhesive coating
- display panel
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- optics adhesive
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Abstract
The invention provides a display device, which comprises a display panel, a barrier layer, a protective layer, a first optical adhesive layer and a second optical adhesive layer, wherein the barrier layer is arranged upon the display panel, and the protective layer is arranged upon the barrier layer. The first optical adhesive layer is arranged between the display panel and the barrier layer, and has a first thickness. The second optical adhesive layer is arranged between the protective layer and the barrier layer, and has a second thickness, and the first thickness is larger than the second thickness. The display device has enough impact strength.
Description
Technical field
The present invention relates to a kind of display device, and be particularly related to a kind of display device with enough impact strengths.
Background technology
Because flexible display device (flexible display device) not only has the advantage of in light weight and thin thickness, the advantage that also has deflection and cannot not fall brokenly, so the manufacturing of flexible display device has become important development trend.Common flexible display device is electrophoretic display device (EPD) (electro-phoreticdisplay at present; EPD); It is a kind ofly to control charged particle distribution kenel through electric field, and then changes the reflectivity of viewing area to surround lighting, to produce the display of display effect.Based on its displaying principle, electrophoretic display device (EPD) has the characteristics of bistable state (bistability) and illuminating source that need not be extra, thereby meets modern technologies need possess high electricity-saving characteristic simultaneously to flexible display requirement.
Fig. 1 shows the diagrammatic cross-section of known electrophoretic displays.Please with reference to Fig. 1; In present electrophoretic display device (EPD) 100; Usually can be on electrophoretic display panel 110 at least one one functional layer 120 of configuration, these functional layers 120 can be to be used for stopping that aqueous vapor gets into restraining barrier (barrierlayer) in the electrophoretic display panel 110, prevents that electrophoretic display panel 110 from suffering the protective seam of external force scratch or having anti-dizzy, the anti-mist or the antireflection diaphragm of optical function.Yet in known electrophoretic display device (EPD) 100, these functional layers 120 do not have enough impact strengths.If electrophoretic display device (EPD) 100 suffers external impacts accidentally, the display unit in the electrophoretic display panel 110 may be because of the impaired problem that causes electrophoretic display device (EPD) 100 that display abnormality takes place.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of display device, it has enough impact strengths.
The present invention proposes a kind of display device, comprises display panel, restraining barrier, protective seam, the first optics adhesive coating and the second optics adhesive coating, and wherein the restraining barrier is disposed at the display panel top, and protective seam then is disposed at the top, restraining barrier.The first optics adhesive coating is disposed between display panel and the restraining barrier, and has first thickness.The second optics adhesive coating then is disposed between protective seam and the restraining barrier, and has second thickness, and first thickness is greater than second thickness.
In one embodiment of this invention, above-mentioned display panel is an electrophoretic display panel, for example little cup type electrophoretic display panel or microcapsules formula electrophoretic display panel.
In one embodiment of this invention, the above-mentioned first optics adhesive coating and the material of the second optics adhesive coating comprise the optics double faced adhesive tape.
In one embodiment of this invention, the first above-mentioned thickness is the twice of second thickness.
In one embodiment of this invention, above-mentioned display device also comprises at least one blooming piece, and it is disposed on the protective seam.
In one embodiment of this invention, above-mentioned protective seam has the optical processing respect to one another surface and the back side, and wherein the back side is positioned on the second optics adhesive coating.
In one embodiment of this invention, above-mentioned optical processing surface comprises anti-reflecting surface or anti-dizzy surface.
In one embodiment of this invention, the material on above-mentioned restraining barrier comprises waterproof material or silicon dioxide.
In one embodiment of this invention, the material of above-mentioned protective seam comprises plastic material, for example polyethylene terephthalate (Polyethyleneterephthalate, PET).
In display device of the present invention; Because the first optics adhesive coating between restraining barrier and display panel is difficult for because of be out of shape by impulsive force; Therefore the present invention is the thickness greater than the second optics adhesive coating between protective seam and restraining barrier with its Thickness Design; Providing display device enough impact strengths, and then increase serviceable life of display device through the first thicker optics adhesive coating of thickness.
For let above-mentioned and other purposes of the present invention, feature and advantage can be more obviously understandable, hereinafter is special lifts an embodiment, and conjunction with figs., is elaborated.
Description of drawings
Fig. 1 is the diagrammatic cross-section of known electrophoretic displays.
Fig. 2 is the diagrammatic cross-section of display device in one embodiment of the invention.
Fig. 3 is the diagrammatic cross-section of display device in the another embodiment of the present invention.
Fig. 4 is the diagrammatic cross-section of display device in the another embodiment of the present invention.
Wherein, description of reference numerals is following:
100: electrophoretic display device (EPD)
110: electrophoretic display panel
120: functional layer
200: display device
210: display panel
211: display surface
212: active elements array substrates
214: display layer
220: the restraining barrier
230: protective seam
232: the optical processing surface
234: the back side
240: the first optics adhesive coatings
250: the second optics adhesive coatings
260: blooming piece
T1: first thickness
T2: second thickness
Embodiment
Fig. 2 is the diagrammatic cross-section of display device in one embodiment of the invention.Please with reference to Fig. 2, display device 200 comprises display panel 210, restraining barrier 220, protective seam 230, the first optics adhesive coating 240 and the second optics adhesive coating 250.Wherein, display panel 210 for example is an electrophoretic display panel.In detail, display panel 210 for example is made up of active array base plate 212 and 214 of electrophoresis layer, and wherein active array base plate 212 can be a thin-film transistor array base-plate, but the present invention is not as limit.And display panel 210 can be little cup type (micro-cup) electrophoretic display panel, also can be microcapsules formula (microcapsule) electrophoretic display panel.In other words, electrophoresis layer 214 can be illustrated in figure 2 as little cup type electrophoresis layer, also can be microcapsules formula electrophoresis layer shown in Figure 3, but the invention is not restricted to this.
Please once more with reference to Fig. 2, protective seam 230 is disposed at display layer 214 tops of display panel 210, and it is for example made by transparent plastic material, as polyethylene terephthalate (Polyethyleneterephthalate, PET).Because the water proofing property of plastic material is not good, so display device 200 also disposes restraining barrier 220 between display panel 210 and protective seam 230, in order to prevent extraneous aqueous vapor and oxygen infiltration electrophoresis layer 214.In the present embodiment, the material on restraining barrier 220 for example is a Si oxide, like silicon dioxide.
The first optics adhesive coating 240 is disposed between display panel 210 and the restraining barrier 220, in order to restraining barrier 220 is adhered on the electrophoresis layer 214.250 of the second optics adhesive coatings are disposed between protective seam 230 and the restraining barrier 220, in order to protective seam 230 is adhered on the restraining barrier 220.Specifically, the first optics adhesive coating 240 and the second optics adhesive coating 250 for example are optics double faced adhesive tape (OCA).
Because the transmittance of the first optics adhesive coating 240 and the second optics adhesive coating 250 is about more than 90%; Therefore can not influence that light goes out, under the prerequisite of incident display panel 210, through the first optics adhesive coating 240 and the second optics adhesive coating 250 restraining barrier 220 and protective seam 230 are being adhered to display surface 211 tops of display panel 210 respectively.And the first optics adhesive coating 240 has first thickness T
1, 250 of the second optics adhesive coatings have second thickness T
2, first thickness T wherein
1Greater than second thickness T
2
Hold above-mentionedly,, difficultly damaged, therefore normally bestow the test that impulsive force is carried out the impact strength of display device 200 from protective seam 230 tops because of clashing into because active array base plate 212 has enough strengths of materials.That is to say; In the impact strength test process of display device 200; The suffered impulsive force of the second optics adhesive coating 250 impulsive force suffered than the first optics adhesive coating 240 is big; And, thereby make the second optics adhesive coating 250 produce distortion and cause impact strength to reduce easily because the impulsive force of being bestowed is a bump power.Hence one can see that, increases by second thickness T of the second optics adhesive coating 250
2And can't improve the impact strength of display device 200 effectively.
Otherwise; Because the material hardness on restraining barrier 220 is greater than the material hardness of the first optics adhesive coating 240 and the second optics adhesive coating 250; Therefore in the impulsive force test, the restraining barrier 220 that is disposed between the two can avoid the first optics adhesive coating 240 along with the second optics adhesive coating 250 produces distortion.Thus, can be through increasing by first thickness T of the first optics adhesive coating 240
1Improve the whole impact resistance intensity of display device 200, and then increase the serviceable life of display device 200.
Specifically, when present embodiment with first thickness T
1It is second thickness T
2The condition of twice when carrying out the impact strength test, the impact strength of the display device 200 of gained is 25 times of the first optics adhesive coating 240 and the second optics adhesive coating 250 impact strength when all thick.
Please continue with reference to Fig. 2, the protective seam 230 of present embodiment can have the optical processing surface 232 and the back side 234, and wherein optical processing surface 232 is relative with the back side 234, and the back side 234 is positioned on the second optics adhesive coating 250.For instance, optical processing surface 232 for example is anti-dizzy, anti-mist or antireflecting surface, in order to the display quality of further raising display device 200.
In addition, the present invention in other embodiments, and is as shown in Figure 4, also can on protective seam 230, dispose at least one blooming piece 260, and it for example is anti-dazzle film sheet, anti-mist diaphragm or antireflection diaphragm, but the invention is not restricted to this.
In sum; In display device of the present invention; At the thickness of the first optics adhesive coating between restraining barrier and the display panel thickness greater than the second optics adhesive coating between protective seam and restraining barrier, and since the hardness on restraining barrier the hardness than the first optics adhesive coating is big usually, therefore when display device receives the impulsive force that above protective seam, is applied; Even the second optics adhesive coating descends because of distortion causes its impact strength; The restraining barrier can protect the first optics adhesive coating not yielding, so that display device still can provide enough impact strengths through the first thicker optics adhesive coating of thickness, and then the serviceable life of increase display device.
Though the present invention with an embodiment openly as above; Right its is not in order to limit the present invention; Any those of ordinary skills; Do not breaking away from the spirit and scope of the present invention, when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking the protection domain that claim defined of enclosing.
Claims (11)
1. display device comprises:
One display panel;
One restraining barrier is disposed at this display panel top;
One protective seam is disposed at this top, restraining barrier;
One first optics adhesive coating is disposed between this display panel and this restraining barrier, and has one first thickness; And
One second optics adhesive coating is disposed between this protective seam and this restraining barrier, and has one second thickness, and wherein this first thickness is greater than this second thickness,
Wherein, the material hardness on said restraining barrier is greater than the material hardness of said first optics adhesive coating and the said second optics adhesive coating.
2. display device as claimed in claim 1, wherein this display panel is an electrophoretic display panel.
3. display device as claimed in claim 2, wherein this display panel is little cup type electrophoretic display panel or microcapsules formula electrophoretic display panel.
4. display device as claimed in claim 1, wherein the material of this first optics adhesive coating and this second optics adhesive coating comprises the optics double faced adhesive tape.
5. display device as claimed in claim 1, wherein this first thickness twice that is this second thickness.
6. display device as claimed in claim 1 also comprises at least one blooming piece, is disposed on this protective seam.
7. display device as claimed in claim 1, wherein this protective seam has the optical processing surface and a back side, and this optical processing surface is relative with this back side, and this back side is positioned on this second optics adhesive coating.
8. display device as claimed in claim 1, wherein this optical processing surface comprises anti-reflecting surface or anti-dizzy surface.
9. display device as claimed in claim 1, wherein the material on this restraining barrier comprises waterproof material or silicon dioxide.
10. display device as claimed in claim 1, wherein the material of this protective seam comprises plastic material.
11. display device as claimed in claim 10, wherein the material of this protective seam comprises polyethylene terephthalate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101855583A CN101852963B (en) | 2010-05-19 | 2010-05-19 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101855583A CN101852963B (en) | 2010-05-19 | 2010-05-19 | Display device |
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| Publication Number | Publication Date |
|---|---|
| CN101852963A CN101852963A (en) | 2010-10-06 |
| CN101852963B true CN101852963B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101855583A Active CN101852963B (en) | 2010-05-19 | 2010-05-19 | Display device |
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| CN (1) | CN101852963B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI570496B (en) * | 2014-12-10 | 2017-02-11 | 元太科技工業股份有限公司 | Reflective display device |
| CN105789256A (en) * | 2016-03-18 | 2016-07-20 | 京东方科技集团股份有限公司 | OLED (organic light-emitting diode) two-sided display substrate, manufacturing method, and display |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008147191A1 (en) * | 2007-06-01 | 2008-12-04 | Polymer Vision Limited | A multilayer structure comprising a chemically inert protective layer |
| CN101493626A (en) * | 2008-01-21 | 2009-07-29 | 元太科技工业股份有限公司 | Flexible electrophoresis display and its manufacturing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5239240B2 (en) * | 2007-07-25 | 2013-07-17 | 凸版印刷株式会社 | Laminated body for protecting optical material, electroluminescence optical element using the same, and electrophoretic display panel |
| JP2009037119A (en) * | 2007-08-03 | 2009-02-19 | Seiko Epson Corp | Electrophoretic display device and electronic paper |
-
2010
- 2010-05-19 CN CN2010101855583A patent/CN101852963B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008147191A1 (en) * | 2007-06-01 | 2008-12-04 | Polymer Vision Limited | A multilayer structure comprising a chemically inert protective layer |
| CN101493626A (en) * | 2008-01-21 | 2009-07-29 | 元太科技工业股份有限公司 | Flexible electrophoresis display and its manufacturing method |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2009-28945A 2009.02.12 |
| JP特开2009-37119A 2009.02.19 |
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| CN101852963A (en) | 2010-10-06 |
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