CN202153541U - Flexible display - Google Patents
Flexible display Download PDFInfo
- Publication number
- CN202153541U CN202153541U CN201120300481XU CN201120300481U CN202153541U CN 202153541 U CN202153541 U CN 202153541U CN 201120300481X U CN201120300481X U CN 201120300481XU CN 201120300481 U CN201120300481 U CN 201120300481U CN 202153541 U CN202153541 U CN 202153541U
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- flexible
- flexible display
- reinforcement
- back plate
- back side
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Abstract
The present utility model provides a flexible display which is composed of an anti-bending unit arranged on the back side of a flexible backboard (1) of the flexible display, the anti-bending unit is arranged along the inflexible direction of the flexible display, thus the flexible display can be prevented from being bended along the inflexible direction. The anti-bending unit comprises a plurality of reinforcing ribs (4) arranged on the back side of the flexible backboard (1), and the reinforcing ribs (4) are arranged on the back side of the flexible backboard (1) along the inflexible direction of the flexible display. The display is simple in structure, the bending direction of the flexible display can be controlled, and the inflexible direction of the flexible display can be stably positioned.
Description
Technical field
The utility model belongs to the display technology field, is specifically related to a kind of flexible display.
Background technology
Display of many uses, nearly all information products all will use display or display screen at present.The flat-panel monitor that with LCD (LCD) is representative is having development by leaps and bounds over past ten years; All obtained very much progress from the size of screen to the quality that shows; At present the performance of LCD each side has reached the level of traditional cathode-ray tube display (CRT), has much the trend that replaces CRT.In addition, organic display (OLED) rises owing to have advantages such as self-luminous, low-power consumption, wide, the counter-bending ability in visual angle be strong gradually, is regarded as the display of tool potentiality of future generation.
The flexible display that is in development at present mainly includes flexible liquid crystal display, flexible electrophoretic display and flexible organic displays.Different with traditional flat-panel monitor; The backboard of flexible display adopts flexible material to process; Thereby flexible display can make fantasy visual effect, relies on flexible back plate can crooked characteristic can be competent at a lot of needs and carries out the field that curved surface shows, like products such as smart card, Electronic Paper, curtain TVs; Thereby flexible display will capture the huge market share in the demonstration produce market in future.
Receive the restriction of prior art; In the present flexible display; Wire structures on the flexible back plate (mainly including signal line, public electrode lead-in wire, data signal line etc.) adopts making such as metal, metal alloy or metal oxide mostly; These wire structures pliability on a certain direction is fine, but pliability is relatively poor on the other direction vertical with this direction.If the user does not in use pay special attention to, the wire structures that is easy to make display bends on the relatively poor direction of pliability and causes broken string, thereby it is bad to cause display to show.In addition, the chip in the flexible display adopts the Chip Packaging mode of COG (Chips On Glass) usually, and the Chip Packaging solder joint that this chip-packaging structure is located on the flexible back plate also ruptures in BENDING PROCESS easily, causes the display loose contact.
The utility model content
The utility model technical problem to be solved is the above-mentioned deficiency that exists to prior art; A kind of flexible display is provided; The bending direction of this flexible display can Be Controlled, guarantees that the non-bending direction of flexible display is not bent, thereby can improve the reliability of flexible display.
The technical scheme that solution the utility model technical problem is adopted is arranged on the anti-curved unit at the flexible back plate back side of flexible display; Said anti-curved unit is provided with along the inflexibility direction of flexible display, bends along its inflexibility direction to avoid flexible display.
Preferably, said anti-curved unit comprises at least one reinforcement that is arranged on the flexible back plate back side, and the inflexibility direction along flexible display is provided with said reinforcement at the back side of flexible back plate.Through attach reinforcement at the flexible back plate back; Make on the flexible back plate inflexibility direction by the fixing protection of reinforcement; Thereby can control the bending direction of flexible back plate, prevent that wire structures on flexible back plate and the backboard is in the fracture that bends of inflexibility direction.
Anti-curved unit also can adopt other structures that can realize its function.
More preferably, reinforcement adopts at least two, and said at least two reinforcements are arranged in parallel, and each reinforcement thickness is 1mm, and the spacing between every adjacent two reinforcements is 1mm.
Preferably; Include chip in the said flexible display, also include the protection gusset that is used to protect said chip in the said anti-curved unit, said protection gusset is arranged on the flexible back plate back side; And corresponding with the position of chip, the length direction of said protection gusset is consistent with the length direction of chip.Owing to adopt the COG mode that chip is installed on the flexible back plate in the flexible display usually; Also promptly adopt thermocompression bonding technology or anisotropic conducting resinl with the chip attachment of fine pitch on flexible back plate; Chip Packaging solder joint or weld on the flexible back plate cause fracture because of stretching easily in BENDING PROCESS; Through the protection gusset is installed on the pairing flexible back plate in chip installation site, can make to be not easy Chip Packaging solder joint or weld firm position to rupture.The area coverage of preferred said protection gusset on flexible back plate is greater than area of chip.
Further preferably, said reinforcement adopts the low elasticity material to process with the protection gusset.Wherein, said low elasticity material comprises hard metal, hard metal alloys, hard organic substance or hard inorganic matter.Like this when flexible display bends; Just can limit the degree of crook of flexible display by the reinforcement of low elasticity material; And prevent that flexible display from bending on the inflexibility direction, flexible display can not show bad phenomenon yet when adjacent two reinforcements were contacted even the crooked degree of flexible back plate reaches.
Said reinforcement is attached to the flexible back plate back side with the protection gusset through adhesive or machinery engaging.
Wherein, thickness through adjusting each reinforcement and the distribution density maximum flexion that can also regulate flexible display.The thickness of supposing reinforcement is a, and the spacing between adjacent two reinforcements is b, when flexible display reaches maximum flexion; Promptly make when adjacent two reinforcements contact; Space between two reinforcements constitutes triangle at this moment, according to the principle of triangle both sides sum greater than the 3rd limit, i.e. 2a＞b; The corresponding central angle θ=arc length/radius of circular arc that this moment, flexible display belonged to is about b/a.This shows, through the thickness a of adjustment reinforcement and the value of the spacing b between two reinforcements, with regard to the degree of crook of may command flexible display.Central angle θ is big more, and then the degree of crook of flexible display is big more.
Preferably, said flexible display further includes flexible protective film, and said flexible protective film is arranged on the flexible back plate back side, and said anti-curved unit is arranged on the flexible protective film.Through flexible protective film being attached to the flexible back plate back side in the flexible display, just can protect flexible display, make that the use of this flexible display is simple.
Preferably, said flexible display further includes stain-proofing layer, and said stain-proofing layer covers on the said anti-curved unit, the having an even surface of stain-proofing layer.
More preferably, said stain-proofing layer adopts elastomeric material to process, and the thickness of stain-proofing layer is greater than the thickness of anti-curved unit.
Owing to take in the spot that produces in the use easily between a plurality of reinforcements that are arranged in parallel; And consider that this structure that is arranged in parallel of a plurality of reinforcements might influence the bending effect of flexible display; Can on reinforcement, cover the stain-proofing layer that has an even surface that one deck adopts highly elastic material (such as materials such as acrylic acid ester, polyimides, PMMA, PEN) to process; Both can prevent that spot was hidden between the reinforcement, can also guarantee the smooth of flexible display flexure plane.
The beneficial effect of the utility model flexible display is: simple in structure; Can make the bending direction of flexible display controlled; And the non-bending direction firm position that makes flexible demonstration; Wire structures on the flexible back plate is difficult for rupturing, thereby can avoid the flexible display picture to show bad problem, can make the display frame of flexible display smooth through covering stain-proofing layer.
Description of drawings
Fig. 1 is the vertical view of flexible display among the utility model embodiment 1;
Fig. 2 is the structural representation of flexible display among the embodiment 1;
Fig. 3 is the structural representation after the flexible display bending among Fig. 2;
Fig. 4 is the structural representation of flexible display among the embodiment 2.
Element explanation among the figure:
The 1-flexible back plate; The 2-chip; The 3-flexible protective film; The 4-reinforcement; 5-protects gusset; The 6-stain-proofing layer.
Embodiment
A kind of flexible display, it comprises the anti-curved unit at flexible back plate 1 back side that is arranged on flexible display, said anti-curved unit is provided with along the inflexibility direction of flexible display, bends along its inflexibility direction to avoid flexible display.
Said anti-curved unit comprises several reinforcements 4 that are arranged on flexible back plate 1 back side, and the inflexibility direction along flexible display is provided with said several reinforcements 4 at the back side of flexible back plate 1.In practical implementation, at least one reinforcement 4 is arranged at the back of flexible back plate 1.
Wherein, reinforcement 4 adopts two or more, and said two or more reinforcements 4 are arranged in parallel.
Include chip 2 in the said flexible display; Also include the protection gusset 5 that is used to protect said chip 2 in the said anti-curved unit; Protection gusset 5 is arranged on flexible back plate 1 back side, and corresponding with the position of chip 2, and the length direction of protection gusset 5 is consistent with the length direction of chip 2.
Wherein, reinforcement 4 adopts the low elasticity material to process with protection gusset 5.
Also include flexible protective film 3 in the preferred said flexible display, said flexible protective film 3 is arranged on flexible back plate 1 back side, and said anti-curved unit is arranged on the flexible protective film 3.
Also include stain-proofing layer 6 in the preferred said flexible display, said stain-proofing layer 6 covers on the said anti-curved unit, and stain-proofing layer 6 is processed by highly elastic material, and it has an even surface.
For making those skilled in the art understand the technical scheme of the utility model better, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Embodiment 1:
As shown in Figure 1, in the present embodiment, include flexible back plate 1 in this flexible display, flexible back plate is provided with through COG mode chip mounted 2.This flexible display comprises anti-curved unit, and said anti-curved unit is arranged on the back side of flexible back plate 1.
Like Fig. 1, shown in 2, in the present embodiment, said anti-curved unit comprises flexible protective film 3, reinforcement 4 and protection gusset 5.
Wherein, flexible protective film 3 adopts flexible material to process, and flexible protective film 3 is attached to the back side of flexible back plate 1.Reinforcement 4 is arranged on the flexible protective film 3; Reinforcement 4 can adopt two or more, and in the present embodiment, reinforcement 4 adopts 100; These 100 reinforcements 4 are set in parallel on the flexible protective film 3, and the length direction of each reinforcement 4 is provided with along the inflexibility direction of flexible display.
In the present embodiment, the consistent size of each reinforcement 4, its thickness a is 1mm, the spacing b between adjacent two reinforcements is 1mm,
Wherein, reinforcement 4 all adopts the low elasticity material to process with protection gusset 5, and said low elasticity material comprises materials such as hard metal, hard metal alloys, hard organic substance or hard inorganic matter.
Through controlling the bending direction of flexible back plate 1 on the correspondence position that flexible protective film 3 is attached to flexible back plate 1 back side.
As shown in Figure 3; When the flexible display that requires for different size and different bending curvature bends; Thickness and distribution density through controlling a plurality of reinforcements 4 just can be regulated the degree of crook of flexible display, and can prevent that flexible display from showing on the bad direction and bend causing easily.In the present embodiment, because the thickness a of reinforcement is 1mm, the spacing b between adjacent two reinforcements is 1mm, thereby central angle θ=1mm/1mm=57.8 °, promptly the maximum flexion of this flexible display is about 57.8 °.
Embodiment 2:
As shown in Figure 4, the difference of present embodiment and embodiment 1 is: reinforcement 4 is coated with stain-proofing layer 6 with protecting on the gusset 5.
Having an even surface of said stain-proofing layer 6, stain-proofing layer 6 adopts highly elastic material to process, and its thickness is greater than the thickness of reinforcement 4 and protection gusset 5 in the anti-curved unit.
Owing to take in the spot in the use easily between the reinforcement 4 and between reinforcement 4 and the protection gusset 5, and influence bending effect.Therefore through on reinforcement 4 and protection gusset 5, making the smooth stain-proofing layer 6 of layer of surface, can prevent spot be hidden between the reinforcement and reinforcement 4 with protect between the gusset 5.
Other structures in the present embodiment and use are all identical with embodiment 1, repeat no more here.
Embodiment 3:
The difference of present embodiment and embodiment 1 is: omitted flexible protective film 3 in the present embodiment.
In the present embodiment; Reinforcement 4 is set directly on the back side of flexible back plate 1 with protection gusset 5; And the length direction of a plurality of reinforcements 4 is along the inflexibility direction of flexible display; A plurality of reinforcements 4 are arranged in parallel, and protection gusset 5 is corresponding with the installation site of chip 2, and the length direction of protection gusset 5 is consistent with the length direction of chip 2.
Other structures in the present embodiment and use are all identical with embodiment 1, repeat no more here.
By above detailed description to embodiment; The utility model flexible display has solved in the existing flexible display flexible back plate or wire structures crooked fracture, Chip Packaging solder joint or weld bend tension easily on the bending direction of non-expectation cause easily that also fracture influences the bad problem of display frame thereby can understand; Can make the non-bending direction firm position of flexible display; Can also adjust the degree of crook of flexible display, make display frame smooth smooth.
It is understandable that above execution mode only is the illustrative embodiments that adopts for the principle that the utility model is described, yet the utility model is not limited thereto.For the one of ordinary skilled in the art, under the situation of spirit that does not break away from the utility model and essence, can make various modification and improvement, these modification and improvement also are regarded as the protection range of the utility model.
Claims (9)
1. flexible display; It is characterized in that comprising the anti-curved unit at flexible back plate (1) back side that is arranged on flexible display; Said anti-curved unit is provided with along the inflexibility direction of flexible display, bends along its inflexibility direction to avoid flexible display.
2. flexible display according to claim 1; It is characterized in that said anti-curved unit comprises at least one reinforcement (4) that is arranged on flexible back plate (1) back side, the inflexibility direction along flexible display is provided with said reinforcement (4) at the back side of flexible back plate (1).
3. flexible display according to claim 2 is characterized in that said reinforcement (4) is at least two, and said at least two reinforcements (4) are arranged in parallel, and each reinforcement thickness is 1mm, and the spacing between every adjacent two reinforcements is 1mm.
4. flexible display according to claim 2; It is characterized in that said flexible display further includes chip (2); Said anti-curved unit further includes the protection gusset (5) that is used to protect said chip (2); Said protection gusset (5) is arranged on flexible back plate (1) back side, and corresponding with the position of chip (2), and the length direction of said protection gusset (5) is consistent with the length direction of chip (2).
5. flexible display according to claim 4 is characterized in that said reinforcement (4) and protection gusset (5) adopt the low elasticity material to process.
6. flexible display according to claim 5 is characterized in that said low elasticity material comprises hard metal, hard metal alloys, hard organic substance or hard inorganic matter; Reinforcement (4) and protection gusset (5) are attached to flexible back plate (1) back side through adhesive or machinery engaging.
7. according to the described flexible display of one of claim 1-6; It is characterized in that said flexible display further includes flexible protective film (3); Said flexible protective film (3) is arranged on flexible back plate (1) back side, and said anti-curved unit is arranged on the flexible protective film (3).
8. according to the described flexible display of one of claim 1-6, it is characterized in that said flexible display further includes stain-proofing layer (6), said stain-proofing layer (6) covers on the said anti-curved unit.
9. flexible display according to claim 8 it is characterized in that said stain-proofing layer (6) adopts elastomeric material to process, and the thickness of stain-proofing layer (6) is greater than the thickness of anti-curved unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120300481XU CN202153541U (en) | 2011-08-18 | 2011-08-18 | Flexible display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120300481XU CN202153541U (en) | 2011-08-18 | 2011-08-18 | Flexible display |
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| Publication Number | Publication Date |
|---|---|
| CN202153541U true CN202153541U (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120300481XU Expired - Lifetime CN202153541U (en) | 2011-08-18 | 2011-08-18 | Flexible display |
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| CN (1) | CN202153541U (en) |
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| CN102902093A (en) * | 2012-09-05 | 2013-01-30 | 京东方科技集团股份有限公司 | Flexible substrate, carrier platform, flexible display and manufacturing method of flexible display |
| CN102969320A (en) * | 2012-12-10 | 2013-03-13 | 京东方科技集团股份有限公司 | Flexible display substrate and preparation method thereof as well as flexible display device |
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