CN1841184A - Equipment and method for manufacturing lenticular lens plate - Google Patents

Abstract

The invention relates to a lenticular lens plate manufacturing device which is used for pressing and printing a substrate into a lenticular lens plate. The second embossing unit is arranged adjacent to one side of the first embossing unit, and the printing unit is arranged adjacent to the other side of the first embossing unit, so that a part of the embossed substrate is clamped by the second embossing unit and the printing unit at the same time and is attached to the first embossing unit. The invention also provides a method for manufacturing the lenticular lens sheet.

Description

Equipment and method for manufacturing lenticular lens plate

technical field

The invention relates to a manufacturing equipment and method, in particular to a manufacturing equipment and method of a lenticular lens plate.

Background technique

The rear projection screen is characterized by its large screen and clear images. Compared with the traditional screen using image tubes, the rear projection screen has the advantages of no radiation and large screen size, and can be directly connected to a computer or other audio-visual equipment. for maximum entertainment. Therefore, with the improvement of living standards and living conditions, rear projection screens are increasingly favored by consumers.

In recent years, the optical engine technology of the rear projection screen has gradually matured, and since the rear projection screen is projected by the projection device to the rear projection screen, the image enters the viewer's eyes after passing through the rear projection screen. Therefore, when designing a rear projection screen, the viewer's viewing angle, image contrast, resolution, and brightness must be taken into consideration.

Referring to FIG. 1, the rear projection screen 1 is a transmissive screen, which is mainly composed of a Fresnel lens sheet (Fresnel Lens Sheet) 11 and a lenticular lens sheet (Lenticular Lens Sheet) 12. Wherein, the incident light emitted by the light source first enters the Fresnel lens plate 11 to be concentrated to form parallel light, and then enters the lenticular lens plate 12 .

As shown in FIG. 2 , the existing lenticular lens plate 12 includes: a plurality of lenticular lenses 121 , a transparent substrate 122 , a photosensitive film 123 , and a light shielding layer 124 . Wherein, the plurality of lenticular lenses 121 are disposed on one side of the transparent substrate 122 , and the photosensitive film 123 is disposed on the other side of the transparent substrate 122 , and the light-shielding layer 124 can be adhered by the adhesive part of the photosensitive film 123 . Wherein, the light-shielding layer 124 (also called black stripe, Black Stripe) is disposed on the non-focusing area (Non-Focusing Area) of the photosensitive film 123, and the light-shielding layer 124 can be used to absorb light to reduce the influence of external light and increase contrast. The light distribution in the horizontal direction is controlled by a plurality of lenticular lenses 121 on the lenticular lens plate 12 to improve the brightness uniformity of the image and make good use of the light in the field of view.

Please refer to FIG. 3 , the manufacturing method of the existing lenticular lens plate includes: coating a photocurable resin on one side of a transparent substrate (step S110), embossing and hardening the photocurable resin (step S120), bonding a photosensitive film on the other side of the transparent substrate (step S130 ), and transfer a light-shielding layer to the photosensitive film (step S140 ).

Then please refer to FIG. 2 and FIG. 4 at the same time. In order to manufacture the lenticular lens plate 12, in the existing lenticular lens plate manufacturing equipment 20, the transparent substrate 122 is sent to a coating device 21 to coat the photocurable resin. on the transparent substrate 122 . Next, after embossing rollers 22, 22' (Embossing Roller) to extrude the lines of the plurality of lenticular lenses 121, the first ultraviolet light irradiator 23 is used for curing, so that the lenticular lenses 121 are set. Then, the photosensitive film 123 is bonded to one side of the transparent substrate 122 by first laminating rollers 24, 24' (Laminating Roller). The light emitted by the second ultraviolet light irradiator 25 convergently irradiates a focusing area of the photosensitive film 123, and the focusing area is non-sticky after being cured by light. When the light-shielding layer 124 is transferred by the second laminating rollers 26 and 26 ′, the black toner will only be stuck by the sticky non-light-gathering portion, so that the light-shielding layer is formed on the non-light-gathering area of the photosensitive film 123 124. In this way, the fabrication of the lenticular lens plate 12 is completed.

However, in the existing lenticular lens manufacturing method, if ink is to be directly printed on the non-light-concentrating area of the lenticular lens 121 to form the light-shielding layer 124 by printing, the problem of alignment accuracy needs to be overcome. Since the distance between the non-condensing regions is only about 50 μm, if the alignment is not precise enough, the light flux of the entire lenticular lens plate 12 will be affected, thereby reducing the yield rate of the lenticular lens plate 12 . Therefore, when forming the light-shielding layer 124 in the existing lenticular lens plate 12 , most of them give up the method of printing, and adopt the process of attaching the photosensitive film 123 and exposing to form the light-shielding layer 124 . The light-gathering area of the photosensitive film 123 loses its viscosity after being exposed, and only the non-light-gathering area is sticky to adhere to the carbon powder, so as to form the light-shielding layer 124 with precise alignment. For the manufacturer of the lenticular lens plate 12 , not only the manufacturing process is more complicated, the cost of the manufacturing equipment is higher, the production speed is reduced, but also the production cost is increased.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies and defects of the prior art, and provide a lenticular lens plate manufacturing equipment and method, which can use printing to print the light-shielding layer of the lenticular lens plate.

To achieve the above purpose, the present invention provides a lenticular lens plate manufacturing equipment for manufacturing a lenticular lens plate. The lenticular lens plate manufacturing equipment includes a first embossing unit, a second embossing unit, and a printing unit. Wherein, the second embossing unit is adjacent to one side of the first embossing unit. The printing unit is adjacent to the other side of the first embossing unit, so that a part of the lenticular lens plate is clamped by the first embossing unit and the printing unit at the same time.

To achieve the above object, the present invention also provides a method for manufacturing a lenticular lens plate, which is used to manufacture a lenticular lens plate. The lenticular lens plate has a substrate, a lens layer, and a light-shielding layer, and the lens layer is arranged on one side of the substrate. The light-shielding layer is arranged on the other side of the substrate, and the manufacturing method of the lenticular lens plate includes: pushing the substrate to a first embossing unit to extrude the shape of the lens layer, hardening the lens layer, and printing to form the light-shielding layer on the other side of the substrate side.

Based on the above, in the lenticular lens plate manufacturing equipment and method according to the present invention, since the first embossing unit and the printing unit hold a part of the lenticular lens at the same time, the printing unit can be used to directly and accurately print on the substrate. Shading layer. Compared with the prior art, since the lens layer is still attached to the lines of the first embossing unit and cannot be moved arbitrarily, the position of the substrate is also fixed accordingly. Therefore, the printing unit can use the printing unit to print the light-shielding layer at an appropriate position on the side of the substrate opposite to the lens layer. In this way, the photosensitive film and the second ultraviolet light irradiator in the existing lenticular lens plate manufacturing equipment are not needed, so the equipment cost can be saved. Furthermore, since the bonding and exposure processes of the photosensitive film are not required, the process is simplified and the time of the process is saved. In addition, the lenticular lens plate manufactured in this embodiment does not have a photosensitive film, and the light-shielding film is directly and precisely disposed on the substrate, which is different from the lenticular lens plate in the prior art.

Description of drawings

FIG. 1 is a schematic diagram of an existing rear projection screen;

Fig. 2 is a schematic side view of an existing lenticular lens plate;

Fig. 3 is a flow chart of the manufacturing method of existing lenticular lens plate;

Fig. 4 is the side view schematic diagram of the manufacturing equipment of existing lenticular lens plate;

Fig. 5 is a schematic side view of the manufacturing equipment of the lenticular lens sheet according to the preferred embodiment of the present invention, wherein the direction of the enlarged view is parallel to the direction of the lines on the first embossing unit;

Fig. 6 is another schematic side view of the manufacturing equipment of the lenticular lens plate of the preferred embodiment of the present invention;

7 is a schematic diagram of a lenticular lens plate in a preferred embodiment of the present invention;

Fig. 8 is a flow chart of the manufacturing method of the lenticular lens plate of the preferred embodiment of the present invention;

FIG. 9 is another flow chart of the manufacturing method of the lenticular lens plate according to the preferred embodiment of the present invention.

Explanation of symbols in the figure

1 rear projection screen

11 Fresnel lens plate

12 Lenticular lens plate

121 lenticular lens

122 transparent substrate

123 photosensitive film

124 shading layer

20 Lenticular lens plate manufacturing equipment

21 Coating device

22 embossing roller

23 The first ultraviolet light irradiator

24 The first stacking roller

24’ first stacking roller

25 Second UV irradiator

26 The second stacking roller

26’ second stacking roller

30 lenticular lens plate manufacturing equipment

31 The first embossing unit

32 Second embossing unit

33 printing unit

34 Support rollers

35 coating unit

36 hardened units

40 lenticular lens plate

41 Substrate

42 lens layer

43 shading layer

S110 Coating a photocurable resin on one side of a transparent substrate

S120 embossing and hardening light-curable resin

S130 Adhesive a photosensitive film on the other side of the transparent substrate

S140 Transfer a light-shielding layer to the photosensitive film

S210 Coating a resin on the substrate

S220 Push the substrate to a first embossing unit to extrude the shape of the lens layer

S230 hardened lens layer

S240 Print the light-shielding layer on the other side of the substrate

Detailed ways

Several embodiments of the manufacturing equipment and method of the lenticular lens plate according to the present invention will be described below with reference to related drawings.

First, please refer to FIG. 5 to FIG. 7 to illustrate a preferred embodiment of the lenticular lens plate manufacturing equipment of the present invention.

As shown in Figure 5, the lenticular lens plate manufacturing equipment 30 is used to press and print a substrate 41 into a lenticular lens plate 40, the lenticular lens plate manufacturing equipment 30 includes a first embossing unit 31, a second embossing unit 32, and A printing unit 33 . Wherein, as shown in Figure 7, the lenticular lens plate 40 has a substrate 41, a lens layer 42, and a light-shielding layer 43, the lens layer 42 is arranged on one side of the substrate 41, and the light-shielding layer 43 is arranged on the other side of the substrate 41 . In this embodiment, the material of the substrate 41 can be polycarbonate (polycarbonate, PC), polyester (polyester, PET), cyclic olefin copolymer (cyclic olefin copolymer, COC), or metal chromium compound-cycloolefin copolymer (metallocene-based cyclic olefin copolymer, mCOC) and so on.

Please refer to Fig. 5 at the same time, the first embossing unit 31 is an embossing roller (EmbossingRoller), and its surface has plural textures, and its texture is opposite to the lens layer 42 of the lenticular lens plate 40, and is a concave lenticular lens texture, and parallel They are arranged in the circumferential direction of the first embossing unit 31 .

In this embodiment, the lenticular lens plate manufacturing equipment 30 further includes a plurality of supporting rollers 34 for supporting the substrate 41 to facilitate the process.

In this embodiment, the lenticular lens plate manufacturing equipment 30 further includes a coating unit 35, the coating unit 35 is adjacent to the first embossing unit 31 for coating a resin, such as coating a photocurable resin on the substrate 41.

The second embossing unit 32 is adjacent to one side of the first embossing unit 31, wherein the second embossing unit 32 is a pressing roller (Pressing Roller). The substrate 41 with resin is pressed by the first embossing unit 31 and the second embossing unit 32 to form a lens layer 42 with a plurality of lenticular lenses on the substrate 41 .

In this embodiment, the lenticular lens plate manufacturing equipment 30 further includes a hardening unit 36 adjacent to the first embossing unit 31 . The hardening unit 36 can harden the resin to fix the shape of the lens layer 42 by means of light irradiation or temperature change. For example, the curing unit 36 can emit ultraviolet beams to harden the photo-curable resin.

The printing unit 33 is adjacent to the other side of the first embossing unit 31, and a part of the substrate 41 after the embossing is clamped by the second embossing unit 32 and the printing unit 33 at the same time and attached to the first embossing unit. Unit 31. In this embodiment, the printing unit 33 has a printing roller (Printing Roller), and the printing roller and the embossing roller clamp the substrate 41 so that the substrate 41 is attached to the surface of the first embossing unit 31 . Wherein, the printing unit 33 can further have printing tools such as a scraper and an ink tank to print the light-shielding layer 43 .

When printing the light-shielding layer 43 , since the lens layer 42 on the substrate 41 is still attached to the first embossing unit 31 and cannot be moved arbitrarily, the position of the substrate 41 is also fixed accordingly. In this way, the printing unit 33 can use the printing unit 33 to print the light-shielding layer 43 at an appropriate position on the side of the substrate 41 opposite to the lens layer 42, as long as the initial printing position is correct and the printing cylinder in the printing unit 33 is matched. With an appropriate printing pitch, the light-shielding layer 43 can be precisely printed on the predetermined position of the substrate 41 .

In addition, the arrangement of the first embossing unit 31, the second embossing unit 32, and the printing unit 33 can be arranged in different ways according to the needs of the actual manufacturing process. FIG. 6 is another example of the configuration of the lenticular lens plate manufacturing equipment. . As shown in FIG. 6 , the first embossing unit 31 , the second embossing unit 32 and the printing unit 33 can be vertically arranged.

Next, please refer to FIG. 5 , FIG. 7 , FIG. 8 and FIG. 9 to illustrate a preferred embodiment of the manufacturing method of the lenticular lens plate of the present invention.

As shown in Figure 7, the method for manufacturing a lenticular lens plate is used to manufacture a lenticular lens plate 40, wherein the lenticular lens plate 40 has a substrate 41, a lens layer 42, and a light shielding layer 43, and the lens layer 42 is arranged on the substrate 41 On one side of the substrate 41 , the light shielding layer 43 is disposed on the other side of the substrate 41 .

In this embodiment, the material of the substrate 41 can be polycarbonate (polycarbonate, PC), polyester (polyester, PET), cyclic olefin copolymer (cyclic olefin copolymer, COC), or metal chromium compound-cycloolefin copolymer (metallocene-based cyclic olefin copolymer, mCOC) and so on.

As shown in FIG. 8 , the lenticular lens plate manufacturing method includes: pushing the substrate to a first embossing unit to extrude the shape of the lens layer (step S220), hardening the lens layer (step S230), and printing a light-shielding layer on the substrate the other side (step S240).

Please refer to FIG. 9 , in this embodiment, the manufacturing method of the lenticular lens plate may further include: coating a resin on the substrate (step S210 ). In step S210 , resin is coated on the substrate 41 . Among them, the material of the resin can be polymethyl methacrylate (Polymethyl Methacrylate, PMMA), polyethylene terephthalate (Polyethylene Terephthalate Glycol, PETG), polystyrene (Polystyrene, PS), polycarbonate (Polycarbonate) , PC), polyvinyl chloride (Polyvinyl Chloride, PVC), or a mixture thereof. In this embodiment, the resin is a photo-curable resin as an example.

Please refer to FIG. 5 and FIG. 8 at the same time. In step S220 , the substrate 41 is pushed to a first embossing unit 31 to extrude the shape of the lens layer 41 .

In step S230 , the lens layer 41 is hardened by the hardening unit 36 to fix the shape of the lens layer 41 .

In step S240 , the light-shielding layer 43 is printed on the other side of the substrate 41 by the printing unit 33 . In this embodiment, the light shielding layer 43 is an ink layer.

To sum up, in the lenticular lens plate manufacturing equipment and method of the present invention, since the first embossing unit and the printing unit hold a part of the lenticular lens at the same time, the printing unit can be used to directly and accurately print the light-shielding plate on the substrate. layer. Compared with the prior art, since the lens layer is still attached to the lines of the first embossing unit and cannot be moved arbitrarily, the position of the substrate is also fixed accordingly. Therefore, the printing unit can use the printing unit to print the light-shielding layer at an appropriate position on the side of the substrate opposite to the lens layer. In this way, the photosensitive film and the second ultraviolet light irradiator in the existing lenticular lens plate manufacturing equipment are not needed, so the equipment cost can be saved. Furthermore, since the bonding and exposure processes of the photosensitive film are not required, the process is simplified and the time of the process is saved. In addition, the lenticular lens plate manufactured in this embodiment does not have a photosensitive film, and the light-shielding film is directly and precisely disposed on the substrate, which is different from the lenticular lens plate in the prior art.

The above description is for illustration only, not for limitation. Any equivalent modification or change without departing from the spirit and scope of the present invention shall be included in the scope of the claims.

Claims (11)

1. a lens pillar panel manufacturing apparatus is printed as a column type lens plate in order to a substrate is suppressed, and it is characterized in that this lens pillar panel manufacturing apparatus comprises:

One first embossing units;

One second embossing units, it is adjacent to a side of this first embossing units; And

One printing element, it is adjacent to the opposite side of this first embossing units, so that a part of of this substrate after this embossing fitted in this first embossing units by this second embossing units and this printing element clamping simultaneously.

2. lens pillar panel manufacturing apparatus as claimed in claim 1, wherein, this first embossing units is an impression cylinder.

3. lens pillar panel manufacturing apparatus as claimed in claim 1, wherein, this second embossing units is a pushing cylinder.

4. lens pillar panel manufacturing apparatus as claimed in claim 1 wherein, more comprises:

One coater unit, it is adjacent to this first embossing units.

5. lens pillar panel manufacturing apparatus as claimed in claim 1 wherein, more comprises:

One hardening unit, it is adjacent to this first embossing units.

6. lens pillar panel manufacturing apparatus as claimed in claim 1 wherein, more comprises:

The plural number support roller is to support this column type lens plate.

7. lens pillar board fabrication method, in order to make a column type lens plate, this column type lens plate has a substrate, a lens pillar layer and a light shield layer, this lens jacket is arranged at a side of this substrate, this light shield layer is arranged at the opposite side of this substrate, it is characterized in that this lens pillar board fabrication method comprises:

Push this substrate to one first embossing units, to extrude the shape of this lens jacket;

This lens jacket hardens; And

Print the opposite side of this light shield layer in this substrate.

8. lens pillar board fabrication method as claimed in claim 7, wherein, the material of this substrate is polycarbonate, polyester, Polyvinylchloride, cyclenes copolymer or crome metal compound-cyclenes copolymer.

9. lens pillar board fabrication method as claimed in claim 7 wherein, more comprises:

Be coated with a resin in this substrate.

10. lens pillar board fabrication method as claimed in claim 9, wherein, the material of this resin is polymethylmethacrylate, poly terephthalic acid diethylester, polystyrene, polycarbonate, Polyvinylchloride or its potpourri.

11. lens pillar board fabrication method as claimed in claim 7, wherein, this light shield layer is an ink lay.

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