CN2901366Y - Composite optical film - Google Patents
Composite optical film Download PDFInfo
- Publication number
- CN2901366Y CN2901366Y CN 200620000833 CN200620000833U CN2901366Y CN 2901366 Y CN2901366 Y CN 2901366Y CN 200620000833 CN200620000833 CN 200620000833 CN 200620000833 U CN200620000833 U CN 200620000833U CN 2901366 Y CN2901366 Y CN 2901366Y
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- Prior art keywords
- optical film
- utility
- model
- resin
- base material
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Abstract
The utility model relates to an optical composite film, comprising a base material, a first optical layer with a light gathering structure located on the first side face of the base material, and a second optical layer with a dispersion structure located on the second side face of the base material. The optical composite film of the utility model could be used as the light-dispersion and the light-gathering slice in LCD.
Description
Technical field
The utility model relates to a kind of complex optical film that can be applicable on the LCD.
Background technology
In technology in the past, for the feasible pattern of viewing and admiring angle and color that improves LCD has a lot, for example can be by increasing fluorescent tube quantity, improve the brightness of the panel of LCD, but the increase of fluorescent tube quantity not only causes the waste of the energy, also too much heat can be produced, when thermal source is accumulated in LCD inside, the life-span and the quality of other elements can be had influence on.Other has a kind of mode, be in the backlight liquid crystal display module, to use blooming miscellaneous, difference along with the blooming function, some blooming with light-focusing function is called as concentration piece (Brightness EnhancementFilm) or prismatic lens (Prism Film), some has allows the blooming of distribution of light balancing function, be called as " diffusion barrier ", this optical principle of utilizing makes light-ray condensing or equally distributed mode, not only can improve the problem of energy consumption, also can improve the brightness of the panel of LCD, and be a kind of most economical, easy settling mode.
And be used for improving the brightness enhancement film of panel luminance or the design of prismatic lens in the past, generally be on a slice polyester optical thin film, to be coated with for example curable resin layer of acryl of one deck, utilize impression and high energy UV light to form the microscopic prisms structure then at the curable resin laminar surface.After light is imported into by a light guide plate (Light guide), characteristic by aforementioned concentration piece or prismatic lens refrangible and total reflection light, script light at random can be concentrated on approximately ± 35 positive visual angle (On-axis) direction of degree, so as to improving the briliancy of LCD.
How to be used in the module backlight for concentration piece at present, existing many patent documentations are delivered, the 3M company WO 96/23649 patent case of being applied for for example, provide the method that a kind of drift angle of avoiding the optically focused prism structure subsides, said method mainly is to utilize type of heating, the concentration piece of finishing is heated to more than the glass transition temperature of resin, hardness so as to the prism angle that increases this concentration piece, the structure of the concentration piece 1 that Using such method is made roughly as shown in Figure 1, just this concentration piece 1 comprises a base portion 11, and concentration structure 12 that is positioned at base portion 11 tops, above-mentioned concentration structure 12 is to be combined by a plurality of prismatic protruded stigmas 121, and this base portion 11 has a smooth surface 111.
Though aforementioned concentration piece 1 in the past has the function of optically focused, the smooth surface 111 of base portion 11 bottom surfaces is diffused light source uniformly, and therefore, its uniformity coefficient is more undesirable.In order to improve above disappearance, general dealer places a slice diffusion barrier below concentration piece, but this kind mode cost height, module backlight more complicated that also can become not only is undesirable in design.
The utility model content
The purpose of this utility model is to be to provide a kind of with diffusion and light-focusing function, and can reduce the complex optical film of manufacturing cost.
Complex optical film of the present utility model comprises a base material, and one first optical layers, is positioned on first side of base material, has a concentration structure.
Wherein, this complex optical film also comprises one second optical layers, is positioned on second side of base material, has a diffusion structure.
Complex optical film described in the utility model, this base material are to be selected from glass or plastic cement.
Complex optical film described in the utility model, the concentration structure of this first optical layers is a microstructure form.
Complex optical film described in the utility model, this microstructure is to be selected from: regular or irregular prism decorative pattern, ring-type prismatic decorative pattern, solid angle decorative pattern, pearl decorative pattern or lensing decorative pattern.
Complex optical film described in the utility model, this second optical layers has a plurality of bubbles.
Second optical layers of the present utility model has a plurality of micro air bubbles, and above-mentioned bubble has diffusion, and light is evenly spread, the utility model can be earlier with the even optically focused again after the diffusion of light, the light and shade of preventing fringe phenomena reaches light and all spends effect together.
Description of drawings
Fig. 1 is a kind of partial side view of blooming in the past;
Fig. 2 is the fragmentary side cross-sectional view of a preferred embodiment of the utility model complex optical film.
Embodiment
Below by most preferred embodiment and accompanying drawing the utility model complex optical film is elaborated.
Consulting Fig. 2, is a preferable enforcement of complex optical film 2 of the present utility model, and this complex optical film 2 comprises: base material 21, first optical layers 22, and second optical layers 23 that is oppositely arranged of and first optical layers 22.
Wherein this base material 21 has one first side 211, and second side 212 of and first side, 211 spaced and parallel, the thickness of above-mentioned base material 21 depends on the demand of the optical articles of being wished to get usually, preferable between about 50 μ m (micron) between about 150 μ m, material can be in the affiliated technical field of any the utility model has the known person of common knowledge, for example glass, plastic cement etc.Can be used for plastic rubber substrate of the present utility model and without particular limitation, concrete example has: pet resin (polyethyleneglycol terephthalate, abbreviation PET) vibrin (polyester resin), polymethylmethacrylate (polymethyl methacrylate, abbreviation PMMA) polyacrylate resin (polyacrylate resin), tygon (polyethylene, be called for short PE), polypropylene (polypropylene, abbreviation PP) etc. polyolefin resin (polyolefin resin), polyimide resin (polyimide resin), polycarbonate resin (polycarbonate resin), polyurethane resin (polyurethaneresin), Triafol T (Triacetate cellulose), or the potpourri of aforementioned resin, be preferably pet resin, polymethylmethacrylate, Triafol T or its potpourri.But substrate 21 of the present utility model is not with the aforementioned limit that is exemplified as.
First optical layers 22 of the present utility model is to be positioned on first side 211 of this base material 21, and has a concentration structure 221, and above-mentioned concentration structure 221 can be plane form or microstructure form, is preferably microstructure form.Concrete structure is as regular or irregular prism decorative pattern, ring-type prismatic decorative pattern, solid angle decorative pattern, pearl decorative pattern or lensing decorative pattern etc., the better prism decorative pattern that is to use rule with preferable light harvesting effect, that is to say that the microstructure of this prism can strengthen the briliancy of LCD.
First optical layers 22 of the present utility model again is the composition that coating one deck includes resin, light initiator and crosslinking chemical on base material 21 when moulding, and its coating thickness is between 5～100 μ m, and refractive index is between 1.3～1.8.The resin that is applicable to first optical layers 22 of the present utility model is to be familiar with this operator to know, for example: and vibrin, polyacrylic resin or polycarbonate resin etc., but first optical layers 22 of the present utility model is not as limit.It is also without particular limitation to be suitable for light trigger of the present utility model, as long as can produce free radical after rayed, and sees through the transmission initiated polymerization person of free radical, all be suitable for the utility model, and concrete example is as benzophenone.Be suitable for crosslinking chemical of the present utility model as having (methyl) acrylic ester resin of one or more functional groups, be preferably and improve the multi-functional resin of having of glass transition temperature, in addition, the utility model also can for example add in the resin that forms first optical layers 22: the additives known of inorganic filler, levelling agent, defoamer or antistatic agent or the like.
Second optical layers 23 of the present utility model is to be positioned on second side 212 of this base material 21, and having a diffusion structure 231, this diffusion structure 231 is to form by be coated with the composition that comprises gel-type resin and gas-development agent on second side 212 on the base material 21.Above-mentioned gel-type resin can be heat reactive resin or is ultraviolet curable resin, for example be preferably: the ultraviolet curable resin of acrylic ester class, but the utility model is not as limit, the concrete example that can be used for acrylic ester resin of the present utility model has: (methyl) acrylate resin, propenoic methyl carbamate (urethane acrylate) resin, polyester acrylate (polyester acrylate) resin, epoxy acrylate (epoxy acrylate) resin or its potpourri are preferably (methyl) acrylate resin.The aforesaid propylene acid esters is that resin can be and has one or more functional groups, be preferably the person that has the polyfunctional group, gas-development agent described in the utility model is to produce inert gas by heating or UV-irradiation mode, to reach the purpose that produces micro air bubble, for example sodium carbonate (Na
2CO
3).
In the utility model, if gas-development agent and gel-type resin are to foam and when solidifying by heating or UV-irradiation mode equally, the action of this foaming and curing can be carried out synchronously during fabrication, but if the mode that mode that gas-development agent foams and gel-type resin are cured is not simultaneously, for example gas-development agent foams with type of heating, and gel-type resin is to be cured by the UV-irradiation mode, then earlier gas-development agent is foamed the action that gel-type resin is cured again.
Make complex optical film 2 of the present utility model according to mode described below, shown in the table 1 composed as follows of each embodiment:
Allocate first optical composition: (by the preparation of Eternal company, commodity are called EM210 with the 2-phenoxyethyl acrylate of 50 weight %
), (made by Eternal company, commodity are called 6145-100 for aliphatic polyurethane six propionic esters of 49 weight %
), and the benzophenone of 1 weight % (light trigger, benzophenone, two key chemical industry manufacturings, commodity are called Chivacure
) stir together, first optical composition that just can form a colloidal state is standby.
Allocate second optical composition: (made by Eternal company, commodity are called EM210 with the 2-phenoxyethyl acrylate of 50 weight %
), and aliphatic polyurethane six propionic esters of 50 weight % (made by Eternal company, commodity are called 6145-100
) being mixed into a matrix, the matrix that adds with respect to 100 weight portions in this matrix is the Na of 0.5 weight % then
2CO
3Gas-development agent (Merck company sells) stirs together, and is standby with second optical composition that forms a colloidal state.
The diaphragm that only has diffusion structure: second optical composition that step 2 is allocated be coated on one by polyethylene terephthalate (PET is made by TORAY company, and commodity are called U34
) on the transparent base 21 of institute's moulding, send into then in the baking oven with 100 ℃ of bakings 20 minutes, make second optics form the deposits yields foamed phenomenon, take out then, with energy-ray drying and moulding in addition, just can make diaphragm again with diffusion structure.
The diaphragm that only has concentration structure: first optical composition that step 1 is allocated is coated on the transparent base 21, the structure of utilizing the mode of transfer printing will have on the template of microstructure simultaneously is transferred on this first optical composition, and with energy-ray drying and moulding in addition, at last template is removed, just can make diaphragm with concentration structure.
Complex optics diaphragm: will form coating second optical composition on the opposition side of transparent base 21 of concentration structure, send into then in the baking oven with 100 ℃ of bakings 20 minutes, make second optics form deposits yields foamed phenomenon and taking-up, with energy-ray drying and moulding in addition, just can make complex optics diaphragm 2 again.
Prepared diaphragm is carried out mist degree and diffusibleness test (testing according to NDH 2000 instruments that NIPPONDENSHOKU provided), and the gained result is as shown in table 1 below:
Table 1
| Optic film structure | Mist degree (Haze) | Diffusibleness (Dfs) |
| 1 | 0.5 | 0.5 |
| 2 | 25 | 20 |
| 3 | 94 | 5 |
| 4 | 97 | 25 |
1. transparent base (do not have diffusion and concentration structure)
2. the diaphragm that has only diffusion structure
3. the diaphragm that has only concentration structure
4. with the complex optics diaphragm of diffusion structure and concentration structure
Test findings by aforementioned table 1 is learnt, the utility model forms the structure of a plurality of bubbles 232 in the mode of foaming in second optical layers 23, not only do not see in the product of blooming in the past, this design also has preferable diffusibleness, above-mentioned diffusion structure cooperates the concentration structure 221 on first optical layers 22 again, can make complex optical film of the present utility model have the effect of diffusion and optically focused concurrently.
Claims (5)
1. complex optical film comprises:
A base material;
One first optical layers is positioned on first side of base material, has a concentration structure;
It is characterized in that this complex optical film also comprises one second optical layers, be positioned on second side of base material to have a diffusion structure.
2. complex optical film according to claim 1 is characterized in that, this base material is to be selected from glass or plastic cement.
3. complex optical film according to claim 1 is characterized in that the concentration structure of this first optical layers is a microstructure form.
4. complex optical film according to claim 3 is characterized in that, this microstructure is to be selected from: regular or irregular prism decorative pattern, ring-type prismatic decorative pattern, solid angle decorative pattern, pearl decorative pattern or lensing decorative pattern.
5. complex optical film according to claim 1 is characterized in that, this second optical layers has a plurality of bubbles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000833 CN2901366Y (en) | 2006-01-11 | 2006-01-11 | Composite optical film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000833 CN2901366Y (en) | 2006-01-11 | 2006-01-11 | Composite optical film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2901366Y true CN2901366Y (en) | 2007-05-16 |
Family
ID=38085530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620000833 Expired - Lifetime CN2901366Y (en) | 2006-01-11 | 2006-01-11 | Composite optical film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2901366Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101625475B (en) * | 2008-07-10 | 2011-08-31 | 伸昌光电材料股份有限公司 | Composite optical film and manufacturing method thereof |
| CN108873152A (en) * | 2018-07-17 | 2018-11-23 | 惠科股份有限公司 | The production method of the production method and display device of light guide plate |
-
2006
- 2006-01-11 CN CN 200620000833 patent/CN2901366Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101625475B (en) * | 2008-07-10 | 2011-08-31 | 伸昌光电材料股份有限公司 | Composite optical film and manufacturing method thereof |
| CN108873152A (en) * | 2018-07-17 | 2018-11-23 | 惠科股份有限公司 | The production method of the production method and display device of light guide plate |
| CN108873152B (en) * | 2018-07-17 | 2021-04-27 | 惠科股份有限公司 | Manufacturing method of light guide plate and manufacturing method of display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ETERNAL MATERIALS CO., LTD. Free format text: FORMER NAME: CHANGXING CHEMICAL INDUSTRIAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: China's Taiwan City, Kaohsiung three people's District, 578 road construction Patentee after: Changxing material industry limited-liability company Address before: China's Taiwan City, Kaohsiung three people's District, 578 road construction Patentee before: Changxing Chemical Industrial Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070516 |
|
| EXPY | Termination of patent right or utility model |