CN100524010C - Method for producing rear projection screen - Google Patents
Method for producing rear projection screen Download PDFInfo
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- CN100524010C CN100524010C CN 200510103205 CN200510103205A CN100524010C CN 100524010 C CN100524010 C CN 100524010C CN 200510103205 CN200510103205 CN 200510103205 CN 200510103205 A CN200510103205 A CN 200510103205A CN 100524010 C CN100524010 C CN 100524010C
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- projection screen
- rear projection
- light
- manufacture method
- mould
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Abstract
This invention provides a kind of back projection screen manufacturing method, its step includes providing the first mould and the second mould, the first mould has many grooves, put the non- transmission materials into the grooves, immit the transmission materials to the place among the first mould and the second mould, after induration and the post-moulding, it can form the columnar lens panel.
Description
Technical field
The present invention relates to a kind of manufacture method of rear projection screen, relate in particular to a kind of rear projection screen that improves when adjusting the rear projection screen manufacture method of its yield value.
Background technology
With reference to Figure 1A and 1B.It shows general conventional rear projection screen 100 easy structural representations.This rear projection screen 100 mainly is that both are constituted by Fresnel lens (Fresnel lens) 102 and lens pillar panel (Lenticular lens sheet) 104.The light that optical lens 106 is exported, be directional light by Fresnel lens 102 back refrangibles, this directional light is again via refraction and the focussing force of cylindrical portion (lenticular portions) 104a of lens pillar panel 104, can focus on surface and the imaging of light shield layer (light-shielding layer) 104b of lens pillar panel 104 at last, make human eye be seen image.
Be the clear blackstreak that shows the light shield layer 104b that constitutes lens pillar panel 104, this cylindrical portion 104a is focused into above-mentioned directional light the bright rays of strip on panel 104 surfaces, so except that the extraction regions of this bright rays, other zone needs to cover and the formation light shield layer with blackstreak (black stripe) 108, the function of this blackstreak 108 is to prevent that the light shield layer 104b that inner parasitic light scatters to lens pillar panel 104 from causing image to mix, and the light shield layer back reflection that can stop outside scattered light to be incident to lens pillar panel 104 causes and dazzles optical phenomenon.
For have preferably quality as promote contrast (contrast ratio), yield value (Gain), visual angle, uniformity coefficient or avoid ghost, not in striped ... or the like, the present improving technology that develops is all devoted more time and energy on Fresnel lens and lens pillar panel.
Consult Fig. 2 A to 2E, it shows that a kind of routine has the production process figure of the lens pillar panel of blackstreak.At first, shown in Fig. 2 A to 2C, the panel 114 that is formed with lens pillar row 112 is provided earlier, then on panel 114 planes, be coated with last layer ultraviolet light photopolymerization solid 116 with rolling-type technology (laminating rolling), utilize ultraviolet light 118 vertical incidence lens pillar row 112 again, because of ultraviolet light 118 can form extraction regions on panel 114 planes after lens pillar row 112 focus on, therefore, after being positioned at the part generation photo-hardening of this extraction regions, this ultraviolet light photopolymerization solid 116a is promptly hardened and is lost ability then, and the remainder except that extraction regions (shaded areas) 116b still has ability then.Then shown in Fig. 2 D to 2E, the black layer 120 that will comprise gum 122 by the rolling-type technology is attached on this ultraviolet light photopolymerization solid 116, after drawing back gum 122, this ultraviolet light photopolymerization solid 116 still shaded areas 116b of the tool property followed is promptly adhered black layer 120 is arranged, and forms the blackstreak 124 that constitutes light shield layer 104b.
Yet, the manufacture method of this blackstreak 124 needs with the fit different optical layer of this ultraviolet light photopolymerization solid 116, black layer 120 or the like of rolling-type technology, and need use large-scale rolling facility, in addition, the generation type of blackstreak 124 is easy to generate alignment error, often can't accurately aim at applying under the making situation of large size panel.In addition, when separating with gum 122, black layer 120, so will reduce the screening effect of screen because the effect of cohesion can make blackstreak 124 borders that form produce uneven phenomenon.Therefore, when desiring to dwindle spacing between the lens pillar with the demand of further raising resolution, the influence of above-mentioned foozle will be more remarkable.
Summary of the invention
The object of the present invention is to provide a kind of rear projection screen manufacture method, its can improve rear projection screen to when adjusting the yield value of screen.
According to a conception of the present invention, this rear projection screen step of manufacturing comprises provides first mould and second mould, and wherein this first mould has a plurality of grooves; Add light-proof material in these a plurality of grooves; And between this first mould and this second mould, inject light transmissive material, and behind sclerosis and demoulding, to form the panel of striped.
Wherein, this light-proof material is preferably black ink, black solvent, black ultraviolet light photopolymerization glue, black photoresist or black material.This light-proof material can be incorporated in this groove by the position that inductor, laser investigation or pattern recognition techniques pick out this each groove.Perhaps, this light-proof material is a black ink, is applied in this groove by ink-jet technology.
Wherein, this light transmissive material is resin or transparent ultraviolet light photopolymerization glue.
In addition, this rear projection screen manufacture method comprises that also a step is for forming the surface that diffusion layer is overlying on the raised zones between this light-proof material and this two adjacent groove.In addition, this rear projection screen manufacture method comprises that also a step contains the surface of antireflecting protective seam in this diffusion layer for forming, and this diffusion layer and this protective seam are to form by the roll extrusion technology.
According to another conception of the present invention, this rear projection screen step of manufacturing comprises provides substrate; First mould and second mould are provided, and wherein this first mould has a plurality of grooves; First light transmissive material is injected in this second mould, and this substrate of pressing, and on this substrate, form cylindrical portion; Add light-proof material in these a plurality of grooves; And this substrate with cylindrical portion is pressed on this first mould, and behind sclerosis and demoulding, with the panel of formation striped.
Wherein, this substrate is preferably tygon terephthalic acid (TPA) (PET), tygon (PVC), PC (PC) or optics material.And this first light transmissive material is preferably transparent ultraviolet light photopolymerization glue.During in first light transmissive material injects this second mould and with this substrate pressing, this manufacture method also comprises a step with the UV-irradiation sclerosis.
In addition, this rear projection screen manufacture method comprises that also a step is to add second light transmissive material in these a plurality of grooves, and is overlying on this light-proof material, and wherein this second light transmissive material is preferably transparent ultraviolet light photopolymerization glue.
Description of drawings
Figure 1A is the structural representation that shows conventional rear projection screen.
Figure 1B is the stereographic map of conventional rear projection screen, with the clear blackstreak that shows the light shield layer that constitutes the lens pillar panel.
Fig. 2 A to 2E is the synoptic diagram that shows the conventional manufacture method of the lens pillar panel with this blackstreak.
Fig. 3 is first embodiment that shows rear projection screen manufacture method of the present invention.
Fig. 4 is second embodiment that shows rear projection screen manufacture method of the present invention.
The primary clustering symbol description
100: rear projection screen 102: Fresnel lens
104: lens pillar panel 106: optical lens
104a: cylindrical portion 104b: light shield layer
108: blackstreak 112: the lens pillar row
114: substrate 116: the ultraviolet light photopolymerization solid
118: ultraviolet light 116a: the ultraviolet light photopolymerization solid
116b: shaded areas 122: gum
120: black layer 124: blackstreak
311: 31: the first moulds of a plurality of grooves
32: 33: the second moulds of black material
3,4: lens pillar panel finished product 41: substrate
Mould 43 in 42: the second: cylindrical portion
441: 44: the first moulds of groove
45: black material 46: transparent ultraviolet light photopolymerization glue
35: diffusion layer 36: protective seam
34: cylindrical portion
Embodiment
Consult Fig. 3, it shows first embodiment of rear projection screen method for making of the present invention.At first, provide earlier between the adjacent groove of first mould (or being called bed die) 31 with a plurality of grooves 311 and second mould (or being called backform) 33, two and have raised zones 312 with a plurality of concave surface cylindrical grooves.Light-proof material or black material 32 are flow in a plurality of grooves 311 of this bed die, between this bed die 31 and this backform 33, inject resin afterwards, moulded section and sclerosis, form a plurality of cylindrical portion 34, at last with this bed die 31 and backform 33 demouldings, to obtain containing the lens pillar panel finished product 3 of blackstreak.
Desire flows into black material 32 in a plurality of grooves 311 of this bed die, and available injection-tube progressively flows into this black material 32 (as black ink, black solvent, black ultraviolet light photopolymerization glue or black photoresist (Photoresist)) in each groove.Because general inductor can easily detect groove and inject black material in wherein, so this can be finished by automatic technology.Perhaps, an amount of black material is smeared in the position that can pick out this groove by laser investigation or pattern recognition techniques, and this also can be sprayed ink and finished and smear by ink-jet technology (Inject printing technology).
Other consults Fig. 4, and it shows second embodiment of rear projection screen method for making of the present invention.It is a substrate 41 with tygon terephthalic acid (TPA) (PET), tygon (PVC), PC (PC) or other optics material, and transparent ultraviolet light photopolymerization glue flow in second mould 42 with a plurality of concave surface cylindrical grooves, compress this substrate 41, behind UV-irradiation sclerosis and demoulding, on this substrate 41, form a plurality of cylindrical portion 43 and formation lens pillar row.In addition, first mould 44 with a plurality of grooves 441 is provided, light-proof material or black material 45 are flow in a plurality of grooves 441 of this first mould half-full approximately after, transparent ultraviolet light photopolymerization glue 46 reinjects, compress this substrate with lens pillar row 43 41, moulded section and sclerosis are at last with these first mould, 44 demouldings, to obtain containing the lens pillar panel finished product 4 of blackstreak.Because of the optical index of these substrate 41 employed materials is close with the refractive index of this transparent ultraviolet light photopolymerization glue 43, so both interface optics effectiveness can be ignored.
The lens pillar panel of finishing via the manufacture method of the foregoing description that contains blackstreak 3,4, again via the roll extrusion technology with diffusion layer 35 with contain antireflecting protective seam 36 respectively with lens pillar panel 3,4 structures dress, shown in Fig. 3 and 4.
The lens pillar panel that contains blackstreak that manufacture method of the present invention is made can be applicable on the rear projection television screen, with promote screen to the yield value of adjustable whole screen (gain) when, and can simplify its processing procedure and reduce cost.
The above only is an illustrative, and non-limiting.Anyly do not break away from spirit of the present invention and category and, all should be contained in the accompanying Claim its equivalent modifications of carrying out or change.
Claims (28)
1. the manufacture method of a rear projection screen, its step comprises:
First mould and second mould are provided, and wherein this first mould has a plurality of grooves, this second mould and the corresponding setting of first mould;
Add light-proof material in these a plurality of grooves; And
Between this first mould and this second mould, inject light transmissive material, and behind sclerosis and demoulding, to form the panel of striped, wherein this striped is formed by light-proof material.
2. rear projection screen manufacture method as claimed in claim 1, wherein this light-proof material is a black material.
3. rear projection screen manufacture method as claimed in claim 1 or 2, wherein this light-proof material is a black solvent.
4. rear projection screen manufacture method as claimed in claim 1 or 2, wherein this light-proof material is black ink, black ultraviolet light photopolymerization glue or black photoresist.
5. rear projection screen manufacture method as claimed in claim 1, wherein this light-proof material is to be incorporated in this groove by the position that inductor, laser investigation or pattern recognition techniques pick out this each groove.
6. rear projection screen manufacture method as claimed in claim 1, wherein this light-proof material is a black ink, is applied in this groove by ink-jet technology.
7. rear projection screen manufacture method as claimed in claim 1, wherein this light transmissive material is resin or transparent ultraviolet light photopolymerization glue.
8. rear projection screen manufacture method as claimed in claim 1, it comprises that also a step is overlying on the surface that this panel has light transmissive material and light-proof material for forming diffusion layer.
9. rear projection screen manufacture method as claimed in claim 8, it comprises that also a step contains the surface of antireflecting protective seam in this diffusion layer for forming.
10. rear projection screen manufacture method as claimed in claim 8, wherein this diffusion layer is to form by the roll extrusion technology.
11. rear projection screen manufacture method as claimed in claim 9, wherein this protective seam is to form by the roll extrusion technology.
12. rear projection screen manufacture method as claimed in claim 1, wherein this second mould has a plurality of concave surface cylindrical grooves, has this panel of a plurality of cylindrical portion with formation.
13. the manufacture method of a rear projection screen, its step comprises:
Substrate is provided;
First mould and second mould are provided, and wherein this first mould has a plurality of grooves, and this second mould has a plurality of concave surface cylindrical grooves, and this second mould and the corresponding setting of first mould;
First light transmissive material is injected in this second mould, and this substrate of pressing, and on this substrate, form cylindrical portion;
Add light-proof material in a plurality of grooves of this first mould; And
This substrate with cylindrical portion is pressed on this first mould, and behind sclerosis and demoulding, to form the panel of striped, wherein this striped is formed by light-proof material.
14. rear projection screen manufacture method as claimed in claim 13, wherein this substrate is the optics material.
15. as claim 13 or 14 described rear projection screen manufacture methods, wherein this substrate is tygon terephthalic acid (TPA), tygon or PC.
16. rear projection screen manufacture method as claimed in claim 13, wherein this first light transmissive material is transparent ultraviolet light photopolymerization glue.
17. rear projection screen manufacture method as claimed in claim 13 during wherein in first light transmissive material injects this second mould and with this substrate pressing, also comprises one with the harden step of this first light transmissive material of UV-irradiation.
18. rear projection screen manufacture method as claimed in claim 13, it comprises that also a step is to add second light transmissive material in these a plurality of grooves, and is overlying on this light-proof material.
19. rear projection screen manufacture method as claimed in claim 18, wherein this second light transmissive material is transparent ultraviolet light photopolymerization glue.
20. rear projection screen manufacture method as claimed in claim 13, wherein this light-proof material is a black material.
21. as claim 13 or 20 described rear projection screen manufacture methods, wherein this light-proof material is a black solvent.
22. as claim 13 or 20 described rear projection screen manufacture methods, wherein this light-proof material is black ink, black ultraviolet light photopolymerization glue or black photoresist.
23. rear projection screen manufacture method as claimed in claim 13, wherein this light-proof material is to be incorporated in this groove by the position that inductor, laser investigation or pattern recognition techniques pick out this each groove.
24. rear projection screen manufacture method as claimed in claim 13, wherein this light-proof material is a black ink, is applied in this groove by ink-jet technology.
25. rear projection screen manufacture method as claimed in claim 13, it comprises that also a step is overlying on the surface that this panel has light transmissive material and light-proof material for forming diffusion layer.
26. rear projection screen manufacture method as claimed in claim 25, it comprises that also a step contains the surface of antireflecting protective seam in this diffusion layer for forming.
27. as claim 25 or 26 described rear projection screen manufacture methods, wherein this diffusion layer is to form by the roll extrusion technology.
28. rear projection screen manufacture method as claimed in claim 26, wherein this protective seam is to form by the roll extrusion technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510103205 CN100524010C (en) | 2005-09-16 | 2005-09-16 | Method for producing rear projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510103205 CN100524010C (en) | 2005-09-16 | 2005-09-16 | Method for producing rear projection screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1932639A CN1932639A (en) | 2007-03-21 |
| CN100524010C true CN100524010C (en) | 2009-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510103205 Expired - Fee Related CN100524010C (en) | 2005-09-16 | 2005-09-16 | Method for producing rear projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100524010C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9597858B2 (en) | 2013-03-04 | 2017-03-21 | Panac Co., Ltd. | Method for manufacturing touch panel and molded article |
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2005
- 2005-09-16 CN CN 200510103205 patent/CN100524010C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1932639A (en) | 2007-03-21 |
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Granted publication date: 20090805 Termination date: 20130916 |