CN101853608B - Flexible display device - Google Patents
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- CN101853608B CN101853608B CN 200910130371 CN200910130371A CN101853608B CN 101853608 B CN101853608 B CN 101853608B CN 200910130371 CN200910130371 CN 200910130371 CN 200910130371 A CN200910130371 A CN 200910130371A CN 101853608 B CN101853608 B CN 101853608B
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Abstract
This invention relates to a flexible display device, which comprises a display panel and a plurality of bending limit structures. The display panel is provided with a display surface and a bottom surface opposite to the display surface, the display surface is provided with a visible area and a peripheral area surrounding the visible area; and the bending limit structures can be configured on the display surface and positioned in the peripheral area, also can be configured on the bottom surface of the display panel, are provided with top surfaces and oblique lateral walls, the top surfaces of adjacent bending limit structures are mutually spaced, and the oblique lateral walls are opposite to each other. When the flexible display device is bent to a preset degree, adjacent bending limit structures are mutually butted, thereby preventing the damage to the display panel as a result of being bent excessively to further ensure the use reliability of the flexible display device.
Description
Technical field
The present invention relates to a kind of display device, particularly relate to a kind of flexible display device.
Background technology
In recent years, along with the progress of science and technology and the development of society, the use of display device in various electronic products is more and more extensive.And flexual display device has more appearred having in and the development trend that be easy to carry about with one compact along with electronic product on market.
With present, all configure thin film transistor (TFT) array (Thin Film Transistor Matrix, TFT Matrix) in most flexible display devices, in order to the switch that whether starts as the control picture element.Thin film transistor (TFT) array generally is made of a variety of materials, and these materials have the part be the relatively poor stupalith of ductility.Therefore, when flexible display device is curved to the degree of crook that can bear over these materials, tend to destroy the structure of thin film transistor (TFT) array, affect the performance of thin film transistor (TFT) array, and then may make flexible display device that abnormal phenomenon occurs to show.
Therefore, how to avoid flexible display device to show abnormal phenomenon because overbend causes, to guarantee the dependability of flexible display device, one of subject under discussion of paying attention to for the personnel of association area in fact.
This shows, above-mentioned existing display device obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, completed by development but have no for a long time applicable design always, and common product does not have appropriate structure to address the above problem, this is obviously the problem that the anxious wish of relevant dealer solves.Therefore how to found a kind of novel flexible display device, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that above-mentioned existing display device exists, the inventor is based on being engaged in this type of product design manufacturing abundant practical experience and professional knowledge for many years, and the utilization of cooperation scientific principle, positive research and innovation in addition, to founding a kind of novel flexible display device, can improve general existing display device, make it have more practicality.Through constantly research, design, and through after repeatedly studying sample and improvement, finally create the present invention who has practical value.
Summary of the invention
Fundamental purpose of the present invention is, overcome the defective that existing display device exists, and provide a kind of novel flexible display device, technical matters to be solved is be such that it will prevent the display panel overbend and cause inner member impaired, and then avoid flexible display device abnormal because of the demonstration that overbend occurs, guarantee the dependability of flexible display device, be very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of flexible display device according to the present invention's proposition, it comprises: a display panel, have a display surface and a bottom surface relative with this display surface, and this display surface has a visible area and an external zones, wherein this external zones is around this visible area, and this display panel comprises a plurality of driving wafers; And a plurality of first crooked limiting structure, be disposed in this external zones, wherein respectively this first crooked limiting structure has one first end face and at least one first oblique sidewall, and those the first end face each intervals of adjacent those the first crooked limiting structure, and those first oblique sidewalls toward each other, those first crooked limiting structures are hollow structure, and those first crooked limiting structures are covered in those and drive on wafer.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid flexible display device, the sectional area of wherein said respectively this first crooked limiting structure on the direction parallel with this display surface are to reduce gradually towards the direction away from this display surface.
Aforesaid flexible display device, more comprise a plurality of second crooked limiting structure, respectively corresponding those first crooked limiting structures one of them and be disposed on this bottom surface, respectively this second crooked limiting structure has one second end face and at least one second oblique sidewall, and those the second end face each intervals of adjacent those the second crooked limiting structure, and those second oblique sidewalls are toward each other.
Aforesaid flexible display device, the sectional area of wherein said respectively this second crooked limiting structure on the direction parallel with this display surface are to reduce gradually towards the direction away from this display surface.
The present invention compared with prior art has obvious advantage and beneficial effect.As known from the above, for achieving the above object, the invention provides a kind of flexible display device, it has better dependability.It comprises display panel and a plurality of first crooked limiting structure.Display panel has display surface and the bottom surface relative with display surface, and display surface has visible area and around the external zones of visible area.The first crooked limiting structure is disposed in external zones, and wherein each first crooked limiting structure has the first end face and the first oblique sidewall, and the first end face each interval of the first adjacent crooked limiting structure, and the first oblique sidewall toward each other.
The present invention proposes a kind of flexible display device, and it comprises display panel and a plurality of crooked limiting structure.Display panel has display surface and the bottom surface relative with display surface, and display surface has visible area and around the external zones of visible area.Crooked limiting structure is disposed on the bottom surface and corresponds to the external zones of display surface, and wherein each crooked limiting structure has end face and oblique sidewall, and the end face each interval of adjacent crooked limiting structure, and oblique sidewall toward each other.
By technique scheme, flexible display device of the present invention has following advantages and beneficial effect at least: in flexible display device of the present invention, owing to disposing a plurality of crooked limiting structures on display panel, when flexible display device is curved to predetermined extent, can mutually support between adjacent crooked limiting structure, further crooked with restriction display panel quilt, therefore can prevent the display panel overbend and cause inner member impaired, and then avoid flexible display device abnormal because of the demonstration that overbend occurs, guarantee the dependability of flexible display device.
In sum, the invention relates to a kind of flexible display device, it comprises display panel and a plurality of crooked limiting structure.Display panel has display surface and the bottom surface relative with display surface, and display surface has visible area and around the external zones of visible area.Crooked limiting structure can be disposed on display surface and be positioned at external zones, also can be disposed at the bottom surface of display panel.Each crooked limiting structure has end face and oblique sidewall, and the end face each interval of adjacent crooked limiting structure, and oblique sidewall toward each other.When being curved to predetermined extent due to flexible display device, can mutually support between adjacent crooked limiting structure, therefore can prevent that display panel is impaired by overbend, and then guarantee the dependability of flexible display device.
The present invention has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is the schematic top plan view of flexible display device in one embodiment of the invention.
Fig. 2 is the vertical view of Fig. 1 display panel.
Fig. 3 is that Fig. 1 is along the cut-open view of III-III' line.
Fig. 4 is the schematic diagram of the flexible display device of Fig. 1 when crooked.
Fig. 5 is the diagrammatic cross-section of flexible display device in another embodiment of the present invention.
Fig. 6 is the diagrammatic cross-section of the display panel of Fig. 1.
Fig. 7 is the diagrammatic cross-section of flexible display device in another embodiment of the present invention.
Fig. 8 is the diagrammatic cross-section of flexible display device in another embodiment of the present invention.
10,20,30: flexible display device
12,22,32: display panel
1201: array base palte
1202: substrate
1203: switch element array
1204: display dielectric layer
1205: photic zone
122,222,322: display surface
1222: visible area
1224: external zones
124,224,324: the bottom surface
14,26,34,36: crooked limiting structure
142: end face
144,344,364: oblique sidewall
146: the bottom
126: drive wafer
Embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of flexible display device, structure, feature and effect thereof to foundation the present invention proposes are described in detail as follows.
Relevant aforementioned and other technology contents of the present invention, Characteristic can clearly present in the following detailed description that coordinates with reference to graphic preferred embodiment.For convenience of description, in following embodiment, identical element represents with identical numbering.
Fig. 1 is the schematic top plan view of flexible display device in one embodiment of the invention.Fig. 2 is the vertical view of Fig. 1 display panel.Fig. 3 is that Fig. 1 is along the cut-open view of III-III' line.See also Fig. 1 to Fig. 3, flexible display device 10 comprises display panel 12 and a plurality of crooked limiting structures 14.Wherein, display panel 12 has display surface 122 and the bottom surface 124 relative with display surface 122, and display surface 122 has visible area 1222 and around the external zones 1224 of visible area 1222.Crooked 14 of limiting structures are disposed in external zones 1224, and each crooked limiting structure 14 all has end face 142 and oblique sidewall 144.Wherein, end face 142 each intervals of adjacent crooked limiting structure 14, and oblique sidewall 144 is toward each other.
Specifically, the shape of crooked limiting structure 14 can be cone, and its sectional area on the direction parallel with display surface 122 is to reduce gradually towards the direction away from display surface 122.In the present embodiment, crooked limiting structure 14 is trapezoidal cone, but it is not to limit the present invention.In other embodiments, the shape of crooked limiting structure 14 can also be triangle cone, cone or other polygon cones.
On the other hand, these crooked limiting structures 14 of the present embodiment can be to adopt integrated mode to make.That is to say, the bottom 146 of the crooked limiting structure 14 of the present embodiment interconnects.And the material of crooked limiting structure 14 can be metal, as aluminium, magnesium and stainless steel one or a combination set of thing.In addition, the material of crooked limiting structure 14 can be also plastic cement, as acryl (Acrylic), acrylonitrile-butadiene-styrene resin (Acrylonitrile-Butadiene-Styrene Resin, ABS), silica gel (Silica Gel), urethane resin (Polyurethane Resin, PU) and epoxy resin (Epoxy Resin) one or a combination set of thing.
These crooked limiting structures 14 are in order to limit the degree of crook of display panel 12.As shown in Figure 3, have angle theta between the oblique sidewall 144 of crooked limiting structure 14 adjacent one another are, and make the display panel 12 can be towards display surface 122 bendings in the angular range that allows.Wherein, the maximum bend angle that namely can bear according to the elements in display panel 12 of angle theta size and deciding.Specifically, when display panel 12 was bent to a certain angle towards display surface 122, as shown in Figure 4, adjacent crooked limiting structure 14 can prop up each other and make display panel 12 can't be more further crooked.Display panel 12 angle of bend at this moment is namely the maximum bend angle that display panel 12 inner members can bear.
It is worth mentioning that, in another embodiment, after these crooked limiting structures 14 also can be made respectively, then it is arranged in external zones 1224.Wherein, these crooked limiting structures 14 can be interval in each other and arrange, as shown in Figure 5.In this embodiment, display panel 12 is that space D and angle theta between end face 142 to crooked limiting structure 14 adjacent one another are is relevant towards the maximum bendable angle of display surface 122.That is to say, the value of space D or angle theta need depending on display panel 12 in the maximum bend angle that can bear of elements.
In addition, have the knack of this skill person and should be understood that display panel 12 also can comprise driving wafer 126, as shown in Figure 3.Specifically, crooked limiting structure 14 can be the structure of hollow, and is covered in and drives wafer 126 tops, drives wafer 126 with protection and can not damage because being subject to bending stress during at case of bending at display panel 12.Certainly, crooked limiting structure 14 can be also solid structure, and driving wafer 126 is in the zone that is configured between external zones 1224 and visible area 1222, and corresponding crooked limiting structure 14 and distributing.In other words, drive wafer 126 so long as not being arranged between adjacent crooked limiting structure 14, can during at case of bending, avoid suffering damage by crooked limiting structure 14 at display panel 12.
Moreover, see also shown in Figure 6ly, display panel 12 can be comprised of array base palte 1201, display dielectric layer 1204 and photic zone 1205 etc.Wherein, display dielectric layer 1204 can be liquid crystal layer (Liquid Crystal Layer), electrophoretic layer (Electro-Phoretic Layer), electric wettable layer (Electro-Wetting Layer) or organic electro luminescent layer (Organic Electro-Luminescence Layer).Array base palte 1201 comprises substrate 1202 and configuration switch element array 1203 thereon, and switch element array 1203 can be active cell array (Active Matrix) or passive device array (Passive Matrix).Specifically, the switch element array 1203 of the present embodiment is for example thin film transistor (TFT) array (Thin Film Transistors Array, TFTs Array).
From the above, in flexible display device 10, owing to disposing a plurality of crooked limiting structures 14 in the external zones 1224 of display panel 12, when flexible display device 10 is bent to predetermined extent towards display surface 122, can mutually support between adjacent crooked limiting structure 14, further crooked with restriction display panel 12 quilts, therefore can prevent display panel 12 overbends and impaired, and then avoid flexible display device 10 phenomenon abnormal because overbend shows, thereby guarantee the dependability of flexible display device 10.
Specifically, in other embodiments of the invention, crooked limiting structure also can be disposed at the bottom surface of display panel, with the bendable angle of restriction display panel on other direction.Below will be for the embodiment explanation.
See also shown in Figure 7ly, Fig. 7 illustrates the diagrammatic cross-section into flexible display device in another embodiment of the present invention.Flexible display device 20 is similar to flexible display device 10, below will be illustrated for both different places.
In flexible display device 20, crooked limiting structure 26 is disposed on the bottom surface 224 of display panel 22 and corresponds to the external zones of display surface 222, and crooked limiting structure 26 can with flexible display device 10 in crooked limiting structure 14 same or similar, and in order to limit the degree of crook of display panel 22, repeat no more herein.
From the above, when display panel 22 towards the bottom surface 224 when being bent to certain predetermined extent, can mutually support between crooked limiting structure 26 adjacent one another are, further crooked with restriction display panel 22 quilts, therefore can prevent that display panel 22 overbends are impaired, and then avoid flexible display device 20 phenomenon abnormal because overbend shows, thereby guarantee the dependability of flexible display device 20.
Certainly, flexible display device of the present invention in another embodiment, more can be simultaneously on the display surface of display panel and bottom surface the crooked limiting structure of configuration.Below will be for the embodiment explanation.Fig. 8 illustrates the diagrammatic cross-section into flexible display device in another embodiment of the present invention.See also Fig. 8, flexible display device 30 is similar to flexible display device 10, below will be illustrated for both different places.
Flexible display device 30 comprises simultaneously crooked limiting structure 34 in a plurality of external zoness that are configured in display surface 322 and a plurality of corresponding crooked limiting structure 34 respectively and is disposed at crooked limiting structure 36 on bottom surface 324, with restriction display panel 32 angle of bend in any direction.In detail, has angle theta 1 between the oblique sidewall 344 of crooked limiting structure 34 adjacent one another are, and has angle theta 2 between the oblique sidewall 364 of crooked limiting structure 36 adjacent one another are, wherein angle theta 1 can greater than, be equal to or less than angle theta 2, the present invention does not do any restriction at this.Especially, in the present embodiment, angle theta 1 is greater than angle theta 2, so flexible display device 30 can be greater than the maximum deflection curvature of flexible display device 30 in 324 bendings towards the bottom surface in the maximum deflection curvature towards display surface 322 bendings.
In sum, in flexible display device of the present invention, owing to disposing a plurality of crooked limiting structures on display panel, when flexible display device is curved to predetermined extent, can mutually support between crooked limiting structure adjacent one another are, by further crooked, therefore can prevent that the display panel overbend is impaired with the restriction display panel, and then avoid the flexible display device phenomenon abnormal because overbend shows, guarantee the dependability of flexible display device.
the above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. flexible display device is characterized in that it comprises:
One display panel has a display surface and a bottom surface relative with this display surface, and this display surface has a visible area and an external zones, and wherein this external zones is around this visible area, and this display panel comprises a plurality of driving wafers; And
The a plurality of first crooked limiting structure, be disposed in this external zones, wherein respectively this first crooked limiting structure has one first end face and at least one first oblique sidewall, and those the first end face each intervals of adjacent those the first crooked limiting structure, and those first oblique sidewalls toward each other, those first crooked limiting structures are hollow structure, and those first crooked limiting structures are covered in those and drive on wafer.
2. flexible display device according to claim 1, is characterized in that the sectional area of wherein said respectively this first crooked limiting structure on the direction parallel with this display surface is to reduce gradually towards the direction away from this display surface.
3. flexible display device according to claim 1, it is characterized in that it more comprises a plurality of second crooked limiting structure, respectively corresponding those first crooked limiting structures one of them and be disposed on this bottom surface, respectively this second crooked limiting structure has one second end face and at least one second oblique sidewall, and those the second end face each intervals of adjacent those the second crooked limiting structure, and those second oblique sidewalls are toward each other.
4. flexible display device according to claim 3, is characterized in that the sectional area of wherein said respectively this second crooked limiting structure on the direction parallel with this display surface is to reduce gradually towards the direction away from this display surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910130371 CN101853608B (en) | 2009-04-03 | 2009-04-03 | Flexible display device |
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| CN 200910130371 CN101853608B (en) | 2009-04-03 | 2009-04-03 | Flexible display device |
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| CN101853608A CN101853608A (en) | 2010-10-06 |
| CN101853608B true CN101853608B (en) | 2013-05-22 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2520271A (en) | 2013-11-13 | 2015-05-20 | Nokia Corp | An apparatus and method of providing an apparatus comprising a bendable portion |
| WO2016090527A1 (en) * | 2014-12-08 | 2016-06-16 | 深圳市柔宇科技有限公司 | Flexible screen protection structure and manufacturing method therefor, and flexible display screen applying flexible screen protection structure |
| CN104851369B (en) * | 2015-06-12 | 2017-11-14 | 京东方科技集团股份有限公司 | A kind of flexible display panels and its driving method, display device |
| CN105096752B (en) * | 2015-08-25 | 2018-03-06 | 京东方科技集团股份有限公司 | A kind of flexible display panels and display device |
| CN107210012A (en) * | 2015-12-15 | 2017-09-26 | 深圳市柔宇科技有限公司 | A kind of flexible display screen and terminal device |
| CN106782093A (en) * | 2017-01-04 | 2017-05-31 | 昆山国显光电有限公司 | A kind of flexible screen, flexible display apparatus and bending direction recognition methods |
| CN108646474A (en) * | 2018-03-27 | 2018-10-12 | 上海天马微电子有限公司 | Array substrate, display panel and display device |
| CN110301728B (en) * | 2019-06-28 | 2021-05-14 | 努比亚技术有限公司 | Chain link assembly and wearable equipment |
| CN110353369A (en) * | 2019-06-28 | 2019-10-22 | 努比亚技术有限公司 | A kind of chain and wearable device |
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| US6104464A (en) * | 1994-12-28 | 2000-08-15 | Mitsubishi Denki Kabushiki Kaisha | Rigid circuit board for liquid crystal display including cut out for providing flexibility to said board |
| CN101133434A (en) * | 2005-02-22 | 2008-02-27 | 富士胶片株式会社 | Flexible substrate for restraining plastic deformation and flexible image display device |
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| US6104464A (en) * | 1994-12-28 | 2000-08-15 | Mitsubishi Denki Kabushiki Kaisha | Rigid circuit board for liquid crystal display including cut out for providing flexibility to said board |
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Non-Patent Citations (1)
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| JP特开2000-122039A 2000.04.28 |
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