CN203217885U - Display device and film assembly used for same - Google Patents
Display device and film assembly used for same Download PDFInfo
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- CN203217885U CN203217885U CN 201320054489 CN201320054489U CN203217885U CN 203217885 U CN203217885 U CN 203217885U CN 201320054489 CN201320054489 CN 201320054489 CN 201320054489 U CN201320054489 U CN 201320054489U CN 203217885 U CN203217885 U CN 203217885U
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- display device
- optical clear
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Abstract
The utility model relates to a display device and a film assembly for the same. According to an embodiment, the display device comprises a first non-flexible base (12), a flexible adhesive performing part (18) and a second non-flexible base (32). The flexible adhesive performing part (18) comprises an optical transparent flexible film (20) and an optical transparent adhesive layer (26), wherein the optical transparent flexible film (20) is provided with a first side (22) and a second side (24), the optical transparent adhesive layer (26) is arranged on the first side and is adhered with the first non-flexible base (12), and the second non-flexible base (32) is arranged on the second side (24) through an optical transparent adhesive film (36). The optical transparent flexible film (20) is provided with an outer edge, and the optical transparent adhesive layer (26) on the second side comprises a groove which extends around the outer edge. According to the display device and the film assembly for the same, optical defects affecting quality of a displayer panel are eliminated.
Description
Technical field
The membrane module that the application relates to display device and is used for display device.
Background technology
Display device such as LCD are used widely.Usually, on the surface of LCD unit, be laminated with tempered glass, transparent plastic overlayer, touch interface or touch-screen.
Relate to interface layer in adopting the multilayer system that for example comprises plastic membranous layer, ITO layer, bonding coat, glassy layer etc., the optical property of this interface layer may be influenced owing to the bubble that forms in reflection and the applying process.Usually by the mode with optically clear adhesive (OCA) combination, cover plate, touch-screen or other overlayer are connected with the LCD unit.OCA can be liquid adhesive or double-sided pressure-sensitive adhesive agent (PSA) adhesive tape of in-situ solidifying.For example, in the existing assemble method, will then LCD and plate be forced together through the two-sided OCA tape applications of cross cutting in LCD or plate.Yet stacked being difficult to of no bubble between bonding agent and the substrate realize, and be especially true for the large scale article, and this bubble may cause optical defect that the display pannel quality is exerted an influence.In addition, stiff base or panel especially are difficult to realize with another stiff base or panel bubble-free laminating.
Therefore, in the multilayer system of using two-sided OCA adhesive tape, need carry out rearmounted the processing so that bubble is removed from the interface between two substrates.This rearmounted the processing is generally the autoclaving of using heat and pressure combination.Other is handled by using vacuum laminated mode attempting to eliminate entrapped air pockets, thereby has avoided rearmounted treatment step.Yet these processing are consuming time, and production efficiency is low.
Therefore, it may be useful providing the technical scheme that overcomes the problems referred to above.
The utility model content
In order to solve problems more of the prior art at least, the application has proposed a kind of like this display device on the one hand, and it can comprise:
Inflexibility first substrate;
Flexible bonding preformed member comprises:
The optical clear flexible membrane has first side and second side, and is bonded to inflexibility first substrate by described first side; And
The optical clear bonding coat is arranged at first side and bonding with described inflexibility first substrate; And
Inflexibility second substrate is mounted to second side by an optical clear bonding film,
Wherein, described optical clear flexible membrane also comprises outward flange and groove, and described groove is positioned at described second side and extends near described outward flange.
In some embodiments, the optical clear bonding film has uniform thickness.
In some embodiments, between the optical clear bonding coat of bonding preformed member and inflexibility first substrate, there is not bubble basically.
In some embodiments, in the optical clear bonding film, there is not bubble basically.
In some embodiments, the thickness of optical clear bonding film is about 0.01-0.5mm.
In some embodiments, the optical clear bonding film can be liquid form.
In some embodiments, the optical clear bonding film can be the cured solid form.
In some embodiments, inflexibility first substrate can comprise display pannel, and inflexibility second substrate can comprise optical lens isotropic disk or capacitance touch panel.
In replaceable embodiment, inflexibility first substrate can comprise optical lens isotropic disk or capacitance touch panel, and inflexibility second substrate can comprise display pannel.
In some embodiments, display pannel can be selected from panel of LCD or plasma display device.
In some embodiments, the optical lens isotropic disk is optional from touch pad, glass plate, plastic plate or have the substrate of glass of tin indium oxide (ITO) coating.
In some embodiments, the degree of depth of groove is half of optical clear flexible membrane thickness.
The application has proposed a kind of membrane module for display device on the other hand, and it can comprise:
The optical clear flexible membrane, have first side and second side, described second side has the middle body that holds the optical transparent liquid bonding agent, wherein, described optical clear flexible membrane also comprises outward flange and groove, and described groove is positioned at described second side and extends near described outward flange; And
The optical clear bonding coat is positioned at first side of described optical clear flexible membrane,, and non-flexible substrates, the bonding preformed member of described flexibility places in the described substrate by described optical clear bonding coat.
In some embodiments, described non-flexible substrates comprises display pannel.
In some embodiments, described non-flexible substrates comprises optical lens isotropic disk or capacitance touch panel.
In some embodiments, the degree of depth of groove is half of optical clear flexible membrane thickness.
By the application's display device, for the membrane module of display device, eliminated the optical defect that the display pannel quality is exerted an influence.
Description of drawings
With reference to the accompanying drawings embodiment of the present utility model is described, wherein accompanying drawing only is used for illustrative purpose.In institute's drawings attached, same reference numbers is indicated same or similar parts.The utility model can also have other embodiment, maybe can realize or enforcement by alternate manner.
Fig. 1 is the schematic cross sectional views according to the display device of the utility model embodiment;
Fig. 2 is the exploded view of display device shown in Figure 1;
Fig. 3 is the schematic cross sectional views of the bonding preformed member before installing;
Fig. 4 is the schematic cross sectional views of the bonding preformed member that is connected with first substrate;
Fig. 5 is the line 5-5 schematic cross sectional views that obtain, that be connected to the bonding preformed member of first substrate along Fig. 5 A;
Fig. 5 A is the vertical view of the bonding preformed member of Fig. 5, wherein shows the lip-deep middle section and the contiguous peripheral part that are positioned at flexible membrane;
Fig. 6 is the schematic cross sectional views of optically clear adhesive (OCA) liquid obtained of the line 6-6 along Fig. 6 A, and wherein OCA liquid is distributed in the middle section on surface of exposure of flexible membrane;
Fig. 6 A is the vertical view of OCA liquid that is positioned at the middle section of flexible membrane;
Fig. 7 is the schematic cross sectional views that is arranged at second substrate on the OCA liquid;
Fig. 8 is another schematic cross sectional views that is arranged at second substrate on the OCA liquid, and wherein second substrate is arranged on the flexible membrane of bonding preformed member, and OCA liquid flows to form layer between second substrate and flexible membrane; And
Fig. 9 is the schematic cross sectional views of the curing of OCA liquid level.
Figure 10 shows the side cross-sectional view of the display device of another embodiment according to the present invention, and in this embodiment, the optical clear polymer film is configured to comprise groove;
Figure 10 A is the vertical view of Figure 10, the optically clear adhesive liquid that is in the polymer film middle section shown in this figure, and this polymer film has the groove that arranges along its periphery/edge;
Side cross-sectional view when Figure 11 is the subsequent step that has under the situation that second substrate that is arranged on the optically clear adhesive liquid and optically clear adhesive liquid flows into groove;
Figure 11 A is the vertical view that the A-A line in Figure 11 obtains, the bearing of trend of optically clear adhesive liquid along groove shown in this figure.
Embodiment
With reference to the accompanying drawings illustrative embodiments of the present utility model is described, this description only is illustrative rather than restrictive.
" there is not bubble basically in term " and means in the OCA film that solidifies and do not exist than about 0.02mm
2The big bubble of microbubble, wherein the OCA film of Gu Huaing is formed by OCA liquid and/or forms between the bonding coat of bonding preformed member and the substrate that is connected (for example first substrate (display pannel)).
Use term " top ", " end ", "up" and "down" only for convenience with illustrative purpose, but not be intended to description of the present utility model is limited, because the institute interchangeable position of reference object.
Shown in the exploded view of the cut-open view of Fig. 1 and Fig. 2 according to first embodiment of display device 10 of the present utility model.Display device 10 for example can be panel display apparatus, mobile phone display device or the display that is used for portable computing (as personal digital assistant PDA, smart mobile phone).Display device 10 for example can also be monitor, television indicator or other electronics or graphic alphanumeric display or interactive display device (as touch-screen display).Wherein, the touch-screen display panel can be arranged on as the touch-screen display panel on the devices such as mobile phone, PDA, point-of-sale terminal system, household electrical appliance.The shape of display device 10 and thickness can change.In the present embodiment, display device 10 is shaped as rectangle.
According to a kind of embodiment, can make bonding preformed member 18 like this, namely by using the roll lamination machine that optical clear contact adhesive (OC PSA) 26(is positioned on the supporting body 28, be stacked and placed on the flexible membrane 20 as shown in Figure 3), sheet material to formation like this carries out cross cutting then, makes its shape and size with the shape and size of connected substrate (first surface 14 of for example first substrate 12) are corresponding.
Optical clear flexible membrane 20 can be formed by flexible and optically transparent (transparent) polymeric material, for example, can be formed by plastic material such as dacron (for example polyethylene terephthalate (PET), PEN (PEN), polycarbonate (PC) etc.), polyimide (PI) etc.Optical clear bonding coat 26 can be formed by optically clear adhesive (OCA) material, for example can be by comprising that acrylate, silicone, polyurethane and analog form.Form the material of optical clear bonding coat 26, for example optical clear contact adhesive (OC PSA) can buy in market.Alternatively, as shown in Figure 3, bonding preformed member 18 can comprise disengaging sheet material or wadding 28(Fig. 3).This disengaging sheet material or wadding 28 are the overlayers that cover on the bonding coat 26, thereby and are easy to be removed the surface 30 that makes bonding coat 26 and are exposed to be connected to first substrate 12.
In embodiment shown in Figure 1, display device 10 also can comprise inflexibility (rigidity) second substrate 32.Second substrate 32 comprises first surface (inside surface) 34 and second surface (outside surface) 38.Second substrate 32 utilizes second side, 24 combinations of optical clear bonding film 36 and flexible membrane 20 at first surface 34 places, thereby forms stacked display device 10.Optical clear bonding film 36 for example can be curing, the uniform optically clear adhesive of thickness (OCA) film 36.In embodiment, in bonding film 36, there is not bubble substantially.Shown in Fig. 6-9, bonding film 36 can be formed by optically clear adhesive (OCA) liquid 36a.This optically clear adhesive (OCA) liquid 36a hardens to form solid adhesion film 36.OCA liquid for example can comprise acrylate, polyurethane, epoxy resin etc.In one embodiment, bonding film 36 can be formed by curable liquid adhesive (36a) (for example UV curable adhesive liquid).Usually, curable binder liq 36a keeps liquid form before curing.In embodiment, bonding film 36 is solid form after curing.The thickness of bonding film 36 is variable.In some embodiments, the thickness of bonding film 36 is about 0.01-0.5mm, is about 0.05-0.1mm in other embodiments.
In embodiment of the present utility model, first substrate 12 of display device 10 can be display pannel, and second substrate 32 can be optical clear (transparent) plate or lid or capacitance touch panel.Alternatively, first substrate 12 of display device 10 also can be optical lens isotropic disk or lid or capacitance touch panel, and second substrate 32 can be display pannel.
According to a kind of embodiment, optical lens isotropic disk or lid can be made by glass or transparent plastic material (as polyacrylic resin, polycarbonate, polyethylene terephthalate (PET), poly-(methyl methacrylate) (PMMA) etc.).According to another kind of embodiment, capacitance touch panel (or plate or screen) can be installed.The thickness of plate/lid or touch panel can for example change according to device demand, plant bulk etc., and the scope of thickness is generally between about 50 μ m and about 500 μ m.In some embodiments, the outside surface of plate (for example, 16 or 38) can be covered by additional membrane coat or stacking material (not shown), additional membrane coat or stacking material are such as low-reflection film, scratch resistance hard coat film, anti-glare film and/or anti-reflective film etc.
Preferably, each layer optically mates, thereby improves the optical characteristics of display system, and will minimize the performance impact that image shows or eliminate basically.Bonding preformed member 18 and bonding film 36 should not influence the second substrate 32(for example plate, touch panel etc.) transparency and reflection index or should not influence observation to following display pannel.The layer (for example, 18,36) that covers on display pannel preferably includes the material of index-matched, makes refractive index similar basically.
In some embodiments, bonding preformed member 18 can comprise optically transparent polymer film 20, optical clear bonding coat 26 and supporting body 28.Fig. 3 showed before bonding preformed member 18 is laminated in first substrate 12, with supporting body or stripping film 28(under situation about using) situation about removing from the surface 30 of bonding coat 26.
As shown in Figure 4, the surface 30 of the exposure of bonding coat 26 contacts with the surface 14 of the exposure of first substrate 12.When the surface 14 of bonding coat 26 and first substrate 12 combines, between the two, may form bubble (microbubble) at the interface.For fear of in cohesive process, generating bubble, as shown in Figure 4, can be for example by with bonding preformed member 18 from the edge 40a of first substrate to edge 40b roll extrusion on the surface 14 of first substrate 12, thereby make the surface of the surface of the substrate 12 of winning and bonding preformed member 18 stacked fully.Flexible so bonding preformed member 18 is bonding with inflexibility first substrate 12, makes not have any bubble between the two basically.For auxiliary and/or improve the combination of bonding preformed member 18 and first substrate 12, can apply lamination pressure at bonding preformed member 18 by roll usually, for example, can apply about 1-4bar(20-60psi) pressure.Alternatively, for assisting and/or improve the combination of bonding preformed member 18 and first substrate 12, also can apply certain heat, for example make temperature be about 60 ° of C of 23 –, alternatively, make temperature be about 50-60 ° of C.
The bonding preformed member 18 that is installed in first substrate 12 has been shown among Fig. 5.Shown in Fig. 5-5A, second side 24 of flexible membrane 20 can comprise middle section 42, peripheral part 44 and outward flange 46.Peripheral part 44 is limited by outward flange 46, and around or around middle section 42.
Referring now to Fig. 6, optically clear adhesive (OCA) the liquid 36a that second substrate 32 is bonded to first substrate 12 for example is distributed on the middle body of second side 24 of flexible membrane 20 of bonding preformed member 18 with the form of dripping shape or wire 42.Preferably, the refractive index of OCA liquid 36a and following bonding preformed member 18 and the refractive index matched of second substrate 32.Liquid adhesive can be thermal curable adhesives, radiation-curable bonding agent or room-temperature-curable bonding agent, perhaps can be ultraviolet (UV) curable adhesive material in preferred embodiment.The amount that is distributed in the OCA liquid 36a on the flexible membrane can be calculated based on the expectation thickness of the OCA layer that solidifies and the surface area of flexible membrane 20 and/or first substrate 12.
In some embodiments, OCA liquid 36a for example is distributed on the flexible membrane 20 with linearity or slight curving wire for example with wire.
As shown in Figure 7, the inside surface 34(of second substrate 32 plate for example) carry out stacked in the face of the uncured OCA liquid 36a on the flexible membrane 20.
As shown in Figure 8, second substrate 32 along Fig. 7 arrow ↓ ↓ be reduced on the OCA liquid 36a, and be suspended on the flexible membrane 20 or be arranged at a certain distance on the flexible membrane 20.Like this, between second substrate 32 and flexible membrane 20, form runner 48.Described distance is determined by the expectation thickness of OCA layer 36.The inside surface 34 of the outside surface of the exposure of flexible membrane 20 (second side) 24 and second substrate 32 all comprises the material that can be soaked by OCA liquid 36a.OCA liquid 36a can soak on the surface of flexible membrane 20 and second substrate 32, and flow from the middle section 42 of flexible membrane 20 to outward flange 46 (arrow along Fig. 8 ← → direction) by capillarity and/or the pressure by putting on second substrate 32, thereby in OCA liquid level 36a, do not form bubble.Liquid shifts bubble from central authorities' 42 46 outflows to the edge, avoids entrapped air pockets in OCA liquid 36a layer thus.The proper viscosity of OCA liquid 36a is about 50-10000cps(ASTM D789, D4878).The layer of resulting OCA liquid 36a is the uniform layer of the thickness that does not contain any bubble substantially, and its thickness in some embodiments is about 0.01-0.5mm.Thus, there is not bubble in the optical clear bonding film 36 that the curing back forms.
Referring now to Fig. 9, OCA liquid 36a layer solidifies, to form solid binder layer 36(as shown in Figure 1).In some embodiments, can at room temperature or by applying heat OCA liquid 36a be solidified.In a preferred embodiment, can use the curable OCA liquid of a kind of ultraviolet (UV), this liquid can be exposed to transmission (along arrow among Fig. 9 ↓ ↓) cross under the UV radiation (for example, wavelength is about 100-400nm) of optical clear (transparent) second substrate 32.In some embodiments, the refractive index about 1.41 to about 1.51 of the OCA layer 36 of curing.
With reference to Fig. 7, along with pressure being put on curable liquid adhesive 36a, liquid adhesive 36a is at the surface of optical clear polymer film 20 24 vertical spreads, and has the possibility of overflowing edge 46.In the device 10A ' of another embodiment, shown in Figure 10 and Figure 10 A, optical clear polymer film 20 ' comprise groove 50 ', groove 50 ' be positioned at from film 20 ' edge 46 ' a distance and extend into surface 24 '.Groove 50 ' can or when forming polymer film 20, be formed in its surface by the form of cutting.For example, this groove can be cut in the film by laser osculating (kiss-cutting) or the osculating with V-arrangement bladed tool.In one embodiment, groove can be V-arrangement (or inclined-plane), but also can be other shapes.Groove 50 ' the degree of depth (d) can change, and preferably be at least film 20 ' half of thickness (t) about.Groove 50 ' effect be to avoid curable adhesive liquid 36a ' overflow edge 46 ', and with binder liq 36 ' redirect in bypass direction (that is, be parallel to edge 56 ' with the direction of arrow 52 ' expression) so that bonding agent towards edge 46 ' outwards spread equably and film 20 ' surface 24 ' on and until edge 46 ' formation uniform thickness.
According to another aspect of the application, a kind of membrane module for display device is provided, comprise flexible bonding preformed member 18.Flexible bonding preformed member 18 comprises optical clear flexible membrane 20 and optical clear bonding coat 26.Optical clear flexible membrane 20 has first side 22 and second side 24.Second side 24 has the middle body 42 that holds optical transparent liquid bonding agent 36a.Optical clear bonding coat 26 is positioned at first side 22 of optical clear flexible membrane 20.The optical clear flexible membrane also comprise outward flange 46 ' and groove 50 ', wherein groove be positioned at second side 24 and described outward flange 46 ' near extension, membrane module also comprises non-flexible substrates 12.Flexible bonding preformed member 18 places in the substrate 12 by optical clear bonding coat 26.
According to some embodiments, non-flexible substrates 12 can be display pannel.
According to some embodiments, non-flexible substrates 12 can be optical lens isotropic disk or capacitance touch panel.
Though illustrate and described specific implementations herein, it will be understood by those skilled in the art that any layout of considering in order to realize identical purpose can replace shown in embodiment.The application is intended to contain any adjustment or the variation according to described principle running of the present utility model.Therefore, the utility model should be only by claims and be equal to restriction.Open this paper that incorporates into by reference of the patent of quoting among the application, list of references and publication.
Claims (17)
1. display device (10) is characterized in that, comprising:
Inflexibility first substrate (12);
Flexible bonding preformed member (18) comprising:
Optical clear flexible membrane (20) has first side (22) and second side (24); And
Optical clear bonding coat (26) is arranged at described first side and bonding with described inflexibility first substrate (12); And
Inflexibility second substrate (32) is mounted to described second side (24) by an optical clear bonding film (36),
Wherein, described optical clear flexible membrane (20) also comprises outward flange (46) and groove, and described groove is positioned at described second side and extends near described outward flange.
2. display device as claimed in claim 1 is characterized in that, described optical clear bonding film (36) has uniform thickness.
3. display device as claimed in claim 1 is characterized in that, does not have bubble between described optical clear bonding coat (26) and described inflexibility first substrate (12).
4. as each described display device (10) among the claim 1-3, it is characterized in that, in described optical clear bonding film (36), do not have bubble.
5. display device as claimed in claim 4 (10) is characterized in that, the thickness of described optical clear bonding film (36) is 0.01-0.5mm.
6. display device as claimed in claim 1 (10) is characterized in that, described optical clear bonding film (36) is liquid form.
7. display device as claimed in claim 1 (10) is characterized in that, described optical clear bonding film (36) is the cured solid form.
8. display device as claimed in claim 1 (10) is characterized in that, described inflexibility first substrate (12) comprises display pannel, and described inflexibility second substrate (32) comprises optical lens isotropic disk or capacitance touch panel.
9. display device as claimed in claim 1 (10) is characterized in that, described inflexibility first substrate (12) comprises optical lens isotropic disk or capacitance touch panel, and described inflexibility second substrate (32) comprises display pannel.
10. display device (10) as claimed in claim 8 or 9 is characterized in that described display pannel is selected from panel of LCD or plasma display device.
11. display device (10) is characterized in that as claimed in claim 8 or 9, described optical lens isotropic disk is selected from touch pad, glass plate, plastic plate or has the substrate of glass of indium-tin oxide coatings.
12. display device as claimed in claim 1 (10) is characterized in that, the degree of depth of described groove is half of described optical clear flexible membrane thickness.
13. be used for the membrane module of display device, it is characterized in that described membrane module comprises
Flexible bonding preformed member (18), the bonding preformed member of described flexibility (18) comprising:
Optical clear flexible membrane (20), have first side (22) and second side (24), described second side (24) has the middle body (42) that holds optical transparent liquid bonding agent (36a), wherein, described optical clear flexible membrane (20) also comprises outward flange (46) and groove, described groove is positioned at described second side and extends near described outward flange, and
Optical clear bonding coat (26) is positioned at first side (22) of described optical clear flexible membrane (20),
Described membrane module also comprises non-flexible substrates (12), and the bonding preformed member of described flexibility (18) places on the described non-flexible substrates (12) by described optical clear bonding coat (26).
14. membrane module as claimed in claim 13 is characterized in that, described membrane module also comprises the optical transparent liquid bonding agent (36a) of the middle body (42) of second side (24) that places described optical clear flexible membrane (20).
15. membrane module as claimed in claim 13 is characterized in that, described non-flexible substrates (12) comprises display pannel.
16. membrane module as claimed in claim 13 is characterized in that, described non-flexible substrates (12) comprises optical lens isotropic disk or capacitance touch panel.
17. membrane module as claimed in claim 13 is characterized in that, the degree of depth of described groove is half of described optical clear flexible membrane (20) thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054489 CN203217885U (en) | 2013-01-30 | 2013-01-30 | Display device and film assembly used for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054489 CN203217885U (en) | 2013-01-30 | 2013-01-30 | Display device and film assembly used for same |
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| CN203217885U true CN203217885U (en) | 2013-09-25 |
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| CN 201320054489 Expired - Fee Related CN203217885U (en) | 2013-01-30 | 2013-01-30 | Display device and film assembly used for same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779125A (en) * | 2014-01-26 | 2014-05-07 | 昆山兴协和光电科技有限公司 | Method for attaching protective film to wire outlet end of thin-film switch |
| CN104699303A (en) * | 2015-03-24 | 2015-06-10 | 赵跃 | Improved assembly structure of touch screen (or protection screen) and display screen |
| TWI644794B (en) * | 2014-05-13 | 2018-12-21 | 三菱化學股份有限公司 | Method for manufacturing double-sided adhesive sheet for image display device |
| US20220253108A1 (en) * | 2016-07-19 | 2022-08-11 | Whitestone Co., Ltd. | Glass protective film for covering a curved surface of a portable display, device of adhering the glass protective films to the curved surface of the portable display, and method of adhering the glass protective film to the curved surface using the device |
-
2013
- 2013-01-30 CN CN 201320054489 patent/CN203217885U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779125A (en) * | 2014-01-26 | 2014-05-07 | 昆山兴协和光电科技有限公司 | Method for attaching protective film to wire outlet end of thin-film switch |
| TWI644794B (en) * | 2014-05-13 | 2018-12-21 | 三菱化學股份有限公司 | Method for manufacturing double-sided adhesive sheet for image display device |
| CN104699303A (en) * | 2015-03-24 | 2015-06-10 | 赵跃 | Improved assembly structure of touch screen (or protection screen) and display screen |
| US20220253108A1 (en) * | 2016-07-19 | 2022-08-11 | Whitestone Co., Ltd. | Glass protective film for covering a curved surface of a portable display, device of adhering the glass protective films to the curved surface of the portable display, and method of adhering the glass protective film to the curved surface using the device |
| US11853128B2 (en) * | 2016-07-19 | 2023-12-26 | Whitestone Co., Ltd. | Glass protective film for covering a curved surface of a portable display, device of adhering the glass protective films to the curved surface of the portable display, and method of adhering the glass protective film to the curved surface using the device |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130925 Termination date: 20140130 |