CN202502262U - Light guide module for backlight module and manufacturing equipment thereof - Google Patents
Light guide module for backlight module and manufacturing equipment thereof Download PDFInfo
- Publication number
- CN202502262U CN202502262U CN2011204425110U CN201120442511U CN202502262U CN 202502262 U CN202502262 U CN 202502262U CN 2011204425110 U CN2011204425110 U CN 2011204425110U CN 201120442511 U CN201120442511 U CN 201120442511U CN 202502262 U CN202502262 U CN 202502262U
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- light guide
- hot pressing
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- guide module
- lgp
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Abstract
The utility model relates to manufacturing equipment of a light guide module for a backlight module. The manufacturing equipment is characterized in that: three hot compression rollers are successively arranged at a vertical direction; each two adjacent hot compression rollers are rotated by facing each other; the surface of the hot compression roller (2) has a zigzag or wavy microstructure and the surfaces of other two hot compression rollers (1 and 2) are smooth; and a light guide plate extrusion die head (4), a diffusion film unreeling mechanism (5) and a optical transparent film unreeling mechanism (6) are arranged at one side of the hot compression roller group. Besides, the utility model also relates to a light guide module for a backlight module, wherein the light guide module is manufactured by the above-mentioned equipment. According to light guide module that is manufactured by the equipment, all film layers are fitted tightly; the light utilization rate is high; the thickness and the cost are effectively reduced; and the thickness of all the film layers are uniform, thereby forming uniform lights with high brightness.
Description
Technical field
The utility model relates to a kind of module backlight with light guide module and manufacturing equipment thereof.
Background technology
Panel of LCD (LCD panel) is because the advantage of its thin thickness, light weight and easy to carry, low radiation has been widely used in the electronic product of tool growth potentiality such as monitor, notebook computer, digital camera and projector at present.Module backlight is one of key part and component of LCD panel, and function is well-off brightness and the light source that is evenly distributed, and makes normally show image of LCD panel.
Module backlight is mainly assembled by assemblies such as light source, lampshade, reflecting plate, LGP, diffusion sheet, prismatic lens and postings; The light that light source sends is scattered in uniform surface light source with line source after passing LGP, again the light harvesting effect through the equal light action of diffusion sheet and prismatic lens form evenly, the light of high brightness.
LGP, diffusion sheet, prismatic lens in the existing module backlight is formed separately the back closed assembly mostly to be formed, all around by posting encapsulation fixing (seeing accompanying drawing 1).Because it is not tight that rete is fitted, and air layer is arranged between adjacent film layers, light has 4 interfaces between LGP, air, diffusion sheet, air, prismatic lens, all will reflect, reflect, and causes the light transmission loss bigger; Not tight owing to fitting between rete simultaneously, module whole thickness can't reduce, and can not satisfy the current requirement ultra-thin to LCD; And, need improve the flatness of each rete for the applying degree of strengthening membrane interlayer, and improve the rete price, can not effectively reduce the cost of entire aphototropism mould.
CN200410082569 discloses a kind of preparation method of LGP module: be ready to the material of optical waveguide layer, diffusion layer, layers of prisms, be respectively charged in the different hoppers; With extruder respectively behind the heating and melting, the extrusion modling of feeding co-extrusion pressing die head obtains three layers of one hot melt sheet stock with the material of getting ready; Extrude the prismatic line through the prism rag.This method requires all material that certain compatibility must be arranged; Each layer distribution simultaneously is because temperature is different, flow velocity is different, the different flow conditions that cause of viscosity are inconsistent; The thickness distribution differentiation; Can't evenly control the bed thickness of each rete, the bed thickness unevenness causes forming evenly, the light of high brightness, can't satisfy the optics requirement of module backlight.
The utility model content
The utility model to solve existing module backlight with the light guide module rete fit closely, light utilization is low, thickness and cost are difficult to reduction, the uneven technical matters of each thicknesses of layers.The utility model provides a kind of module backlight with light guide module and manufacturing equipment and preparation method for this reason; Use the integrated preparation light guide module of this Apparatus and method for ability; And each rete of the light guide module that makes is fitted closely, light utilization is high, thickness is with cost effectively reduces, each thicknesses of layers is even, can form light even, high brightness.
The utility model provides a kind of module backlight to use light guide module, is made up of LGP, diffusion rete, optical lens rete, is characterised in that the trilamellar membrane applying closely, does not have air layer, and covering every tunic thickness uniformity coefficient on the LGP can be in 50 micron.Uniformity coefficient refers to the poor of rete thickness and thinnest part thickness here.
The utility model also provides the manufacturing equipment of a kind of module backlight with light guide module; Be arranged in order in vertical direction by 3 hot pressing rollers; Adjacent two hot pressing rollers rotate in opposite directions; There are zigzag or microstructure such as wavy in intermediate heat pressure roller 2 surfaces, other two hot pressing rollers, 1,3 smooth surfaces, and hot pressing roller group one side has LGP extrusion die 4, diffusion layer unreeling structure 5 and optical clear film unreeling structure 6.
As preferably, near optical clear film that optical clear film unreeling structure 6 is carried and hot pressing roller 2 contact points heating arrangement 7 is arranged, heating arrangement 7 is heated to the viscoelastic attitude with the optical clear film and fits tightly with microstructure hot pressing roller 2.
The utility model module backlight is with the preparation method of light guide module: LGP is extruded from extrusion die 4; Be delivered to hot pressing roller 1 and hot pressing roller 2 tangent line places; Preformed diffusion barrier is delivered to the position near LGP by diffusion layer unreeling structure 5; Preformed optical clear film is delivered near the diffusion layer opposite side by optical clear film unreeling structure 6; The hot pressing roller 2 that the optical clear film is had a microstructure squeezes out the optical lens film of zigzag or wavy micro-structure surface; The light guide module 8 that LGP, diffusion barrier, optical lens film are combined into one by hot pressing roller 1,2, light guide module 8 continue on to hot pressing roller 3 and hot pressing roller 2 tangent line places, carry out the second time compound module backlight that gets product and use light guide module.
Because LGP, diffusion barrier, optical clear film all are preformed, thereby can effectively control the thickness and the uniformity coefficient of each layer, form light even, high brightness before compound.
As preferably; Near optical clear film that optical clear film unreeling structure 6 is carried and hot pressing roller 2 contact points heating arrangement 7 is arranged; The optical clear film is heated to the viscoelastic attitude and fits tightly with microstructure hot pressing roller 2; Help under the extruding of hot pressing roller 2 optical clear film form zigzag or wavy microstructure the optical lens film, make the Microstructure Optics lens coating bring into play the light harvesting effect better.
As preferably, the temperature of heating arrangement 7 is 100-200 ℃.Temperature too high or too the low optical hyaline membrane all be difficult for keeping the viscoelastic attitude, but not the viscoelastic attitude is unfavorable for combining of optical clear rete and diffusion layer, also is unfavorable for the compression moulding of optical clear film surface microstructure.
The light guide module integrated molding of the utility model method preparation, each rete are fitted closely, light utilization is high, thickness is with cost effectively reduces, each thicknesses of layers is even, can form light even, high brightness.
Description of drawings
The partial component exploded view of the existing module backlight of Fig. 1
Among Fig. 1: 1, LGP, 2, diffusion sheet, 3, prismatic lens, 4, posting.
Fig. 2 the utility model module backlight is with the manufacturing equipment synoptic diagram of light guide module
Among Fig. 2: 2, there is the hot pressing roller of zigzag or wavy microstructure on the surface, and 1,3, ganoid hot pressing roller, 4, the LGP extrusion die, 5, the diffusion layer unreeling structure, 6, optical clear film unreeling structure, 7, heating arrangement, 8, light guide module.
Embodiment
Be arranged in order in vertical direction by 3 hot pressing rollers; Adjacent two hot pressing rollers rotate in opposite directions; There are zigzag or wavy microstructure in intermediate heat pressure roller 2 surfaces; Other two hot pressing rollers, 1,3 smooth surfaces, hot pressing roller group one side has LGP extrusion die 4, diffusion layer unreeling structure 5 and optical clear film unreeling structure 6.Near optical clear film that optical clear film unreeling structure 6 is carried and hot pressing roller 2 contact points heating arrangement 7 is arranged, the optical clear film is heated to the viscoelastic attitude and fits tightly with microstructure hot pressing roller 2.
The preparation method of embodiment 2 light guide modules
LGP is extruded from extrusion die 4; Be delivered to hot pressing roller 1 and hot pressing roller 2 tangent line places; Preformed diffusion barrier is delivered to the position near LGP by diffusion layer unreeling structure 5; Preformed optical clear film is delivered near the diffusion layer opposite side by optical clear film unreeling structure 6, and the hot pressing roller 2 that the optical clear film is had a microstructure squeezes out the optical lens film of zigzag or wavy micro-structure surface, the light guide module 8 that LGP, diffusion barrier, optical lens film are combined into one by hot pressing roller 1,2; Light guide module 8 continues on to hot pressing roller 3 and hot pressing roller 2 tangent line places, carries out the second time compound module backlight that gets product and uses light guide module.
Because LGP, diffusion barrier, optical lens film all are preformed, thereby can effectively control the thickness and the uniformity coefficient of each layer, form light even, high brightness before compound.
Near optical clear film and hot pressing roller 2 contact points heating arrangement 7 can also be housed; Transparent optical film is heated to the viscoelastic attitude and fits tightly with microstructure hot pressing roller 2; Help the optical lens film that under the extruding of hot pressing roller 2 transparent optical film forms zigzag or wavy microstructure, make the Microstructure Optics lens coating bring into play the light harvesting effect better.The temperature of heating arrangement 7 is 100-200 ℃, and in this temperature range, the optical clear film can be kept the viscoelastic attitude, helps the compression moulding with optical clear film surface microstructure that combines of optical clear rete and diffusion layer.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the instructions, must confirm its technical scope according to the claim scope.
Claims (3)
1. a module backlight is used light guide module; Form by LGP, diffusion rete, optical lens rete; Be characterised in that LGP, diffusion rete, the applying of optical lens rete closely, do not have air layer, covering every tunic thickness uniformity coefficient on the LGP can be in 50 micron.
2. a module backlight is with the manufacturing equipment of light guide module; It is characterized in that being arranged in order in vertical direction by 3 hot pressing rollers; Adjacent two hot pressing rollers rotate in opposite directions; There are zigzag or wavy microstructure in intermediate heat pressure roller (2) surface, other two hot pressing rollers (1,3) smooth surfaces, and hot pressing roller group one side has LGP extrusion die (4), diffusion layer unreeling structure (5) and optical clear film unreeling structure (6).
3. the described module backlight of claim 2 is with the manufacturing equipment of light guide module; It is characterized in that near optical clear film that optical clear film unreeling structure (6) is carried and hot pressing roller (2) contact point heating arrangement (7) being arranged, heating arrangement (7) is heated to the viscoelastic attitude with the optical clear film and fits tightly with microstructure hot pressing roller (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204425110U CN202502262U (en) | 2011-11-10 | 2011-11-10 | Light guide module for backlight module and manufacturing equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204425110U CN202502262U (en) | 2011-11-10 | 2011-11-10 | Light guide module for backlight module and manufacturing equipment thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202502262U true CN202502262U (en) | 2012-10-24 |
Family
ID=47038872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204425110U Expired - Fee Related CN202502262U (en) | 2011-11-10 | 2011-11-10 | Light guide module for backlight module and manufacturing equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202502262U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508331A (en) * | 2011-11-10 | 2012-06-20 | 常州丰盛光电科技股份有限公司 | Light guide module for backlight unit and manufacturing equipment and method for light guide module |
| CN104317102A (en) * | 2011-11-10 | 2015-01-28 | 常州丰盛光电科技股份有限公司 | Light guide module for backlight module and manufacturing device thereof |
-
2011
- 2011-11-10 CN CN2011204425110U patent/CN202502262U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508331A (en) * | 2011-11-10 | 2012-06-20 | 常州丰盛光电科技股份有限公司 | Light guide module for backlight unit and manufacturing equipment and method for light guide module |
| CN104317102A (en) * | 2011-11-10 | 2015-01-28 | 常州丰盛光电科技股份有限公司 | Light guide module for backlight module and manufacturing device thereof |
| CN102508331B (en) * | 2011-11-10 | 2015-09-09 | 常州丰盛光电科技股份有限公司 | A kind of backlight module light guide module and manufacturing equipment thereof and preparation method |
| CN104317102B (en) * | 2011-11-10 | 2017-02-01 | 常州丰盛光电科技股份有限公司 | Light guide module for backlight module and manufacturing device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20161110 |