CN105546482A - Flexile optical fiber backlight board - Google Patents
Flexile optical fiber backlight board Download PDFInfo
- Publication number
- CN105546482A CN105546482A CN201410601464.8A CN201410601464A CN105546482A CN 105546482 A CN105546482 A CN 105546482A CN 201410601464 A CN201410601464 A CN 201410601464A CN 105546482 A CN105546482 A CN 105546482A
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- China
- Prior art keywords
- optical fiber
- fibre bundle
- adhesive layer
- reflector
- backlight
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Abstract
A flexible optical fiber backlight board is characterized in that light emitting measuring optical fibers are densely arranged and glued between a reflector and a diffuser board and tightened through fixing clamping boards; and the tail end of an optical fiber beam is coupled with a large-power LED light source. Due to the fact that an optical fiber glue layer, the reflector and the diffuser board can all be bent, the whole backlight board is flexible and is very suitable for manufacturing large-size hook face liquid crystal display televisions.
Description
Technical field
The present invention relates to display backlight field, particularly relate to a kind of flexible optical fibre backlight for large scale curved surface LCD TV.
Background technology
The development trend of household flat-plate television is that screen will be larger, and towards ultra-thin and future development that is curved surface.Especially curved surface TV meets the viewing custom of human eye, brings excellent visual experience to user.Current LCD TV backlight module is mainly side-light type.Side-light backlight module is by linear illumination array, and light guide plate, reflecting plate and diffuser plate are formed.Light guide panel material uses PMMA or PC of optical grade, then with there is high reflectivity and not extinction material, stamp scattering points at the bottom surface UV screen printing technology of light guide plate.LED linear arranged in arrays in the both sides of light guide plate, when light enter light guide plate be mapped to each light guiding points time, reverberation can toward all angles diffusion, and light guide plate front injection.By various density, light guiding points not of uniform size, light guide plate uniformly light-emitting can be made.
The major defect of side-light backlight module is that LED is lower at the coupling efficiency of side with light guide plate, cannot make large size panel in addition.Certainly pass through to use the light guide plate of Intermediate Gray V groove and the problem that can solve large scale application at the extra LED of V groove arranged beneath, but the thickness that the problem caused is whole backlight module increases, and cannot bend.If utilize ripe LCD Display Technique to manufacture large scale curved surface TV, the thickness of existing backlight module and inflexible problem just must be solved.
Summary of the invention
In order to overcome above and other problem, the invention provides a kind of by the large scale flexible backlight plate of side emitting optical fiber panel as area source.
The principle of side emitting optical fiber is that optical fiber is added with scattering nucleus between fibre core and fibre cladding in pulling process, light constantly homogenous diffusion towards periphery in spread fiber process.Because simple optical fiber length can reach several meters, light propagate in optical fiber and scattering process in have significant decay, so all arrange LED illuminating module at the two ends of fibre bundle, light intensity can be made to decay from two ends to centre.
Backlight of the present invention is made up of optical fiber adhesive layer, fibre bundle, reflector, diffuser plate, metal splint and LED illuminating module.The back side of optical fiber adhesive layer is reflecting plate, before be diffuser plate.The light part that optical fiber side sends is returned by baffle reflection, through optical fiber adhesive layer arrival diffuser plate above.The effect of diffuser plate makes light scattering also evenly.The thickness of optical fiber adhesive layer, between 0.5 ~ 2mm, depends on quantity and the arrangement density of optical fiber.The thickness of reflecting plate and diffuser plate is respectively between 1 ~ 2.5mm.
In order to improve panel uniformity of luminance, side emitting optical fiber being bent into 3 sections and being bonded in reflector in the horizontal direction.Dense arrangement between optical fiber and optical fiber.In the radial direction of optical fiber arrangement, the quantity of unit length inner fiber arrangement keeps fixing.Diffuser plate, optical fiber adhesive layer and reflector are fixed at two ends by clamping plate, and wherein clamping plate 20 ~ 40mm is respectively stretched out at the two ends of optical fiber.Optical fiber outside clamping plate assembles bunchy according to fixing fibre bundle diameter, and the end transparent adhesive tape of fibre bundle bonds, and the diameter range of fibre bundle is 2 ~ 4mm.Fibre bundle end is coupled with LED light source.
Because optical fiber adhesive layer, reflecting plate and diffuser plate can bend, so whole backlight module is in flexible, be very suitable for making large scale curved surface LCD TV.
Accompanying drawing explanation
Fig. 1 is the profile of optical fiber backlight module.
Fig. 2 is the arrangement schematic diagram of side emitting optical fiber.
Wherein Reference numeral
101 is diffuser plate;
102 is fibre bundle;
103 is strap;
104 is optical fiber adhesive layer;
105 is reflector;
201 is LED light source;
202 is single side emitting optical fiber.
Detailed description of the invention
The present invention can carry out various amendment and implement with a lot of different modes, and with reference to illustrating that the accompanying drawing of illustrative embodiments of the present invention more comprehensively describes the present invention.But the present invention should not be interpreted as the restriction by the embodiment illustrated by this paper; On the contrary, it should be understood that these embodiments comprise the institute that can be included in spirit of the present invention and technical scope and change, are equal to and substitute.In the course of describing the present invention (s), when the actual description about known function and configuration can not cause scope of the present invention not known, its description will be omitted.
Below, enter with reference to illustrating that the accompanying drawing of embodiments of the invention more comprehensively describes present general inventive concept of the present invention.
Fig. 1 is the planing surface figure of optical fiber backlight module.The back side of optical fiber glue 104 is reflector 105, before be diffuser plate 101.Diffuser plate is at the outermost layer of whole backlight module.Respectively there is a strap 103 at diffuser plate two ends, diffuser plate, optical fiber adhesive layer and reflector are fixedly clamped, play the effect supporting whole backlight module simultaneously.Two ends of optical fiber respectively stretch out clamping plate 5 ~ 20cm, and the adjacent fiber outside clamping plate is gathered into fibre bundle 102 according to fixing diameter.
Light in the emitting optical fiber of side in communication process, each total reflection, all can some light scattering to outside optical fiber.Wherein the refractive index of fiber cores is greater than fibre cladding.Manufacture and the ordinary optic fibre of side emitting optical fiber are similar, unlike in drawing side emitting optical fiber process, are added with the glass of other materials or plastics to form scattering nucleus between fibre core and fibre cladding.So light is constantly scattered core homogenous diffusion towards periphery in the emitting optical fiber communication process of side.
If wherein simple optical fiber is along horizontal linear arrangement, when two ends light, the curve of the luminous light intensity in side has remarkable decay by optical fiber two ends to centre.If according in the present invention, fiber kinks is become 3 sections, and then horizontal arrangement is in optical fiber adhesive layer, then the luminous intensity curve of 3 sections of optical fiber superpositions after bending is comparatively level and smooth, does not obviously decay.
Fig. 2 is the arrangement schematic diagram of side emitting optical fiber.Simple optical fiber 202 shown in figure is bent into 3 sections in the horizontal direction in optical fiber adhesive layer arrangement, and each bending place is positioned at the inside edge of optical fiber adhesive layer, and in the clamping scope of metal splint 103, its crooked process radius is greater than the minimum radius bend of optical fiber.Optical fiber two ends stretch out clamping plate, and pool fibre bundle with adjacent fiber.The end of fibre bundle is coupled with LED light source 201.
LED light source is by shell, and the circuit board of large power white light LED 8 and band metal fin is formed.At the end of fibre bundle 2, optical fiber cutting is neat, and bond with transparent adhesive tape.The diameter of fibre bundle is 2 ~ 4mm, close to and be less than the diameter of LED collector lens.The end face of fibre bundle and the collector lens of LED are close to, between fibre bundle end face and LED collector lens, be filled with transparent adhesive tape, play a part to improve optical coupling efficiency.
Although specifically illustrate in conjunction with illustrative embodiments and describe the present invention, but what it should be understood by one skilled in the art that is, when not departing from the spirit and scope of the present invention that appended claims limits, in details and various change can be carried out to the present invention in form.
Claims (4)
1. a flexible survey emitting optical fiber backlight, is characterized in that, adopt survey emitting optical fiber dense arrangement to be also glued between reflector and diffuser plate, step up with strap, fibre bundle end is coupled with high-power LED light source.
2. optical fiber adhesive layer according to claim 1, it is characterized in that, single side emitting optical fiber is bent into 3 sections and arranges in optical fiber adhesive layer in the horizontal direction, each bending place is positioned at the inside edge of optical fiber adhesive layer, and in the clamping scope of metal splint, optical fiber is bonded at reflector by transparent adhesive tape, dense arrangement between optical fiber and optical fiber, and overlapping, in the radial direction of optical fiber arrangement, the quantity of unit length inner fiber arrangement keeps fixing.
3. according to claim 1 and optical fiber backlight according to claim 2, it is characterized in that, clamping plate 20 ~ 40mm is respectively stretched out at the two ends of optical fiber, and the optical fiber outside clamping plate assembles bunchy according to fixing diameter, and the end transparent adhesive tape of fibre bundle bonds.
4. according to the optical fiber backlight in the claims described in any one, it is characterized in that, fibre bundle end is coupled with LED light source, fills transparent adhesive tape to improve optical coupling efficiency between fibre bundle end and LED collector lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410601464.8A CN105546482A (en) | 2014-11-02 | 2014-11-02 | Flexile optical fiber backlight board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410601464.8A CN105546482A (en) | 2014-11-02 | 2014-11-02 | Flexile optical fiber backlight board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105546482A true CN105546482A (en) | 2016-05-04 |
Family
ID=55825867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410601464.8A Pending CN105546482A (en) | 2014-11-02 | 2014-11-02 | Flexile optical fiber backlight board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105546482A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678874A (en) * | 2016-11-18 | 2017-05-17 | 西北工业大学 | Micro engine combustor annular concave-convex wall face spiral type evaporating pipe |
| CN106678872A (en) * | 2016-11-18 | 2017-05-17 | 西北工业大学 | Mini-type engine combustion chamber cavity wall face spiral evaporation pipe |
| CN109027729A (en) * | 2018-09-18 | 2018-12-18 | 黄利军 | A kind of optical fiber luminescent structure and its fiber cut get method ready |
| CN109732888A (en) * | 2019-01-15 | 2019-05-10 | 李发兰 | A kind of manufacturing method and its special equipment of raw material of optical fibre |
-
2014
- 2014-11-02 CN CN201410601464.8A patent/CN105546482A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678874A (en) * | 2016-11-18 | 2017-05-17 | 西北工业大学 | Micro engine combustor annular concave-convex wall face spiral type evaporating pipe |
| CN106678872A (en) * | 2016-11-18 | 2017-05-17 | 西北工业大学 | Mini-type engine combustion chamber cavity wall face spiral evaporation pipe |
| CN109027729A (en) * | 2018-09-18 | 2018-12-18 | 黄利军 | A kind of optical fiber luminescent structure and its fiber cut get method ready |
| CN109732888A (en) * | 2019-01-15 | 2019-05-10 | 李发兰 | A kind of manufacturing method and its special equipment of raw material of optical fibre |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |