CN211293321U - Cylindrical lens optical composite film and naked eye 3D display - Google Patents
Cylindrical lens optical composite film and naked eye 3D display Download PDFInfo
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- CN211293321U CN211293321U CN201922163369.5U CN201922163369U CN211293321U CN 211293321 U CN211293321 U CN 211293321U CN 201922163369 U CN201922163369 U CN 201922163369U CN 211293321 U CN211293321 U CN 211293321U
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Abstract
The utility model relates to an bore hole formula 3D shows technical field, discloses a post lens optical composite membrane, include: a first polarizer; and a lenticular grating joined to the first polarizer, including a first lenticular array and a second lenticular array; the surfaces of the first cylindrical lens array and the second cylindrical lens array, which are opposite to each other, are planes, the surfaces of the first cylindrical lens array and the second cylindrical lens array, which are opposite to each other, are concave-convex complementary, and the first polarizer is attached to the lenticular grating. The cylindrical lens optical composite film is easy to clean and attach and has a good optical effect. The utility model discloses still disclose a bore hole 3D display.
Description
Technical Field
The utility model relates to an bore hole formula 3D shows technical field, for example relate to post lens optical composite film, bore hole 3D display.
Background
Currently, the naked-eye 3D display technology is a research hotspot in the imaging technology because an observer can obtain a 3D visual effect without an external auxiliary device (such as glasses).
In general, people cover a grating on a conventional display to realize a naked-eye 3D display effect, and at least the following problems exist in the implementation process: the display loss and the bonding precision caused by the defective rate of the process are not enough, the surface of the lenticular grating is easy to damage and accumulate dirt, the mounting and bonding by means of tools are not easy to influence the optical effect or the light output, and the like.
This background is only for convenience in understanding the relevant art in this field and is not to be taken as an admission of prior art.
SUMMERY OF THE UTILITY MODEL
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the utility model provides a lenticular optical composite film, bore hole 3D display to solve the problem that correlation technique exists in the aspect of laminating, cleanness, optical effect etc..
According to the utility model discloses an embodiment provides a post mirror optical composite film, include: a first polarizer; and a lenticular grating joined to the first polarizer, including a first lenticular array and a second lenticular array; the surfaces of the first cylindrical lens array and the second cylindrical lens array, which are opposite to each other, are planes, the surfaces of the first cylindrical lens array and the second cylindrical lens array, which are opposite to each other, are concave-convex complementary, and the first polarizer is attached to the lenticular grating.
The display and the parts thereof are reconstructed on the basis of naked eye 3D display, the parts which belong to the conventional 2D display are combined with the grating material, the whole process manufacturing is simplified, and the process cost is greatly reduced. In the original naked eye 3D display, the polaroid and the grating are respectively aligned and attached to the display part in different processes, and the grating is usually made into a soft body, so that the alignment and attachment difficulty is increased. The utility model discloses combine polaroid and lenticular grating, and be independent of display panel combination processing, the polaroid need not to counterpoint with the lenticular grating, can once only laminate the polaroid on display panel together with the lenticular grating, has saved the process. In addition, the combination of the polarizer and the lenticular grating can increase the hardness of the lenticular grating, and is beneficial to alignment and lamination. Utilize the utility model discloses a column mirror optical composite film need not with the help of extra supplementary counterpoint instruments such as counterpoint mark, base plate, has reduced the technology degree of difficulty. The outward surfaces of the two lenticular arrays in the lenticular lens are flat, which is easy to clean and mount and attach by means of an auxiliary mounting tool such as a suction cup.
In some embodiments, one of the first and second lenticular arrays is a plano-convex lenticular array and the other lenticular array is a plano-concave lenticular array; one surface of the plano-convex cylindrical lens array is a plane, and a plurality of convex arc surfaces which are arranged side by side are formed on the other opposite surface; or one surface of the plano-concave cylindrical lens array is a plane, and a plurality of concave arc surfaces which are complementary with the plurality of convex arc surfaces of the plano-convex cylindrical lens array are formed on the other opposite surface; the refractive index of the plano-convex lenticular array is higher than that of the plano-concave lenticular array.
In some embodiments, the refractive index of the plano-convex lenticular array differs from the refractive index of the plano-concave lenticular array by a value n△N is not less than 0.1△≤0.3。
In some embodiments, the refractive index n of the plano-convex lenticular array1N is not less than 1.561Less than or equal to 1.66; or a plano-concave lenticular array having a refractive index n2N is not less than 1.362≤1.46。
In some embodiments, the lenticular grating includes a pair of spaced apart liners; wherein a surface of a first liner layer of the pair of liner layers facing away from the second liner layer is bonded to the first polarizer, the first and second lenticular arrays are sandwiched between the pair of liner layers, and the planes of the first and second lenticular arrays are each bonded to one of the pair of liner layers.
In some embodiments, the first polarizer includes: a pair of spaced apart support membranes; and a polarizing film sandwiched between a pair of support films and having an absorption axis; wherein the lenticular lens is bonded to one of the pair of support films.
In some embodiments, the lenticular optical composite film further comprises: and the protective film is attached to the surface of the lenticular grating, which is back to the first polaroid.
In some embodiments, the lenticular optical composite film further comprises: and the release film is attached to the surface of the first polaroid, which is back to the lenticular grating.
According to the utility model discloses an embodiment provides bore hole 3D display, include: a display panel layer; and a lenticular optical composite film as described above; the display panel layer is jointed with the first polarizer of the cylindrical optical composite film.
In some embodiments, the display panel layer includes: a pair of spaced apart glass substrates; a color filter attached to a surface of a first glass substrate of the pair of glass substrates facing the second glass substrate; a thin film transistor attached to a surface of the second glass substrate facing the first glass substrate; the second polarizer is attached to the surface, back to the first glass substrate, of the second glass substrate; and a liquid crystal layer disposed between the pair of glass substrates; the first polarizer of the cylindrical optical composite film is attached to the surface of the first glass substrate, which is back to the second glass substrate.
The embodiment of the utility model provides a lenticular optical composite film, bore hole 3D display can realize easily laminating, clearance and do not influence the effect of optical output.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the invention.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic structural diagram of an naked eye 3D display provided by an embodiment of the present invention;
fig. 2 is a side view of an naked eye 3D display provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a lenticular optical composite film according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a lenticular grating provided in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a polarizer according to an embodiment of the present invention;
fig. 6 is a schematic view of a polarizer according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a lenticular grating provided in an embodiment of the present invention;
FIG. 8 is a flow chart illustrating a process for preparing a lenticular optical composite film according to an embodiment of the present invention;
fig. 9 is a flow chart of a process for preparing a lenticular optical composite film according to an embodiment of the present invention;
fig. 10 to fig. 15 are processes for manufacturing a lenticular grating according to an embodiment of the present invention;
FIG. 16 is a corresponding flow chart of the manufacturing process shown in FIGS. 10-15;
FIG. 17 is an alternative step of the manufacturing process shown in FIGS. 10-15;
fig. 18 to fig. 22 are processes for manufacturing a lenticular grating according to an embodiment of the present invention;
FIG. 23 is a corresponding flow chart of the manufacturing process shown in FIGS. 18-22;
fig. 24 is a flowchart illustrating a process for manufacturing a lenticular lens according to an embodiment of the present invention;
fig. 25 is a flowchart illustrating a process for manufacturing a lenticular lens according to an embodiment of the present invention;
fig. 26 is a flowchart illustrating a process for manufacturing a lenticular lens according to an embodiment of the present invention;
fig. 27 is a flowchart illustrating a process for manufacturing a lenticular lens according to an embodiment of the present invention;
fig. 28 is a flowchart illustrating a process for manufacturing a lenticular lens according to an embodiment of the present invention;
fig. 29 is a flowchart illustrating a process for manufacturing a lenticular lens according to an embodiment of the present invention;
fig. 30 is a process for manufacturing a lenticular grating according to an embodiment of the present invention;
FIG. 31 is a corresponding flow diagram of the manufacturing process shown in FIG. 29;
fig. 32 illustrates a process for manufacturing a lenticular lens according to an embodiment of the present invention;
FIG. 33 is a corresponding flow diagram of the manufacturing process shown in FIG. 31;
fig. 34 is a process for manufacturing a lenticular grating according to an embodiment of the present invention;
FIG. 35 is a corresponding flow diagram of the manufacturing process shown in FIG. 33;
fig. 36 is a process for manufacturing a lenticular lens provided in an embodiment of the present invention; and
fig. 37 is a corresponding flow chart of the manufacturing process shown in fig. 35.
Reference numerals:
1: a lenticular optical composite film; 10: a protective film; 11: a lenticular grating; 111: a first liner layer; 112: a plano-convex lenticular array; 1121: a plano-convex cylindrical mirror; 113: a plano-concave lenticular array; 1131: a plano-concave cylindrical mirror; 114: a second liner layer; 115: an adhesive layer; 12: a polarizer; 121: a support film; 122: a polarizing film; 123: a support film; 124: an adhesive layer; a: an absorption axis; x: length of the polarizer; y: the width of the polarizer; 13: a release film; 2: a display panel layer; 21: a substrate; 22: a substrate; 23: a thin film transistor; 24: a color filter; 25: a liquid crystal layer; 26: a polarizer; 31: a first mold; 311: a first molding surface; 312: a concave arc surface; 313: a void; 32: a second mold; 321: a second molding surface; 322: a void; 41: a first liquid lenticular-forming material; 42: a second liquid lenticular-forming material; 51: a first glue outlet nozzle; 52: a second glue outlet nozzle; 61: a first curing device; 611: a first bowl; 612: a first light source; 613: a first collimated light modulating element; 62: a second curing device; 621: a second bowl; 622: a second light source; 623: a second collimated light modulating element; 70: a material roll; 71: a hugging roller; 72: a hugging roller; 73: a support roller; 74: a wind-up roll; 75: a material roll; 76: a hugging roller; 77: a hugging roller; 78: a support roller; 79: a support roller; 80: a hugging roller; 81: and (5) tightly holding the roller.
Detailed Description
In order to understand the features and technical contents of the embodiments of the present invention in more detail, the following description is given in conjunction with the accompanying drawings for describing the embodiments of the present invention in detail, and the accompanying drawings are only used for the purpose of reference and are not used to limit the embodiments of the present invention. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
Herein, "naked eye three-dimensional (3D) display" refers to a technology in which a user can observe a 3D display image on a flat display without wearing glasses for 3D display, and includes, but is not limited to, "parallax barrier" and "lenticular" technologies.
In this context, "multi-view" has its conventional meaning in the art, meaning that different images displayed by different pixels or sub-pixels of the display screen can be viewed at different positions (viewpoints) in space. In this context, multi-view shall mean at least 3 views.
In this context, "grating" has a broad interpretation in the art, including but not limited to "parallax barrier" gratings and "lenticular" gratings, such as "lenticular" gratings.
Herein, "lens" or "lenticular" has the conventional meaning in the art, and includes, for example, cylindrical lenses and spherical lenses.
In this context, a conventional "pixel" means a 2D display or the smallest display unit in terms of its resolution when displayed as a 2D display. Herein, "subpixel" refers, for example, to a single color present in a pixel. Thus, a single pixel will comprise a set of sub-pixels, such as RGB (red-green-blue), RGBW (red-green-blue-white), RYYB (red-yellow-blue) or RGBYC (red-green-blue-yellow-cyan). But in the definition of pixel herein, it is not meant that the sub-pixels therein must be arranged adjacently. For example, other components, such as other sub-pixels, may be disposed between sub-pixels of the same "pixel".
In some embodiments herein, a "composite pixel," as it is referred to when applied to multi-view technology in the field of naked eye 3D display, such as a "super pixel," refers to the smallest unit of display when a naked eye 3D display provides multi-view display, but does not preclude that a single composite pixel for multi-view technology may comprise or appear as multiple 2D display pixels. Herein, unless specifically stated as a composite pixel, 3D pixel or "super pixel" for "3D display" or "multi-view" applications, a pixel will refer to the smallest unit of display in 2D display. Herein, "super pixel" means a composite pixel providing 3D display of at least 12 viewpoints. Likewise, when describing a "composite subpixel" or "super subpixel" for multi-view naked eye 3D display, it will refer to a composite subpixel of a single color present in the composite pixel when the naked eye 3D display provides multi-view display.
In embodiments of the present invention, "flat" means smooth, flat and free of any uneven structure or portion. By "flat surface" is meant that the surface is smooth, flat and free of any relief formations or portions on the surface, e.g. smooth, flat planes and arcs, circumferential surfaces all belong to "flat surfaces".
In the present embodiment, the term "side-by-side arrangement" means an arrangement in which two nearest elements in a group of elements are sequentially arranged without overlapping or slightly overlapping. A plurality of elements arranged "side by side" may be arranged in series in a plane or in series in a circumferential direction (for example, a circumferential direction).
Referring to fig. 1 and fig. 2, the embodiment of the present invention provides a naked eye 3D display, where fig. 1 provides a schematic structural diagram of the naked eye 3D display in a cross-sectional view, and fig. 2 provides a schematic structural diagram of the naked eye 3D display in a side view. In the illustrated embodiment, the naked eye 3D display comprises a display panel layer 2 and a lenticular optical composite film 1 attached to the display panel layer 2. The display panel layer 2 comprises a pair of spaced apart substrates 21, 22 with a liquid crystal layer 25 disposed in the space between the two substrates 21, 22. The substrates 21, 22 may be glass substrates, for example. The liquid crystal material may be directly filled between the pair of substrates 21, 22 to form the liquid crystal layer 25. A stopper may be provided between the substrates 21, 22 to prevent the liquid crystal layer 25 from overflowing around the substrates 21, 22. Alternatively, the liquid crystal material may be filled in the clad material in advance to form a liquid crystal pack, and then the liquid crystal pack is packed between the substrates 21, 22 to form the liquid crystal layer 25. A color filter 24 and electrodes (including a common electrode and a pixel electrode, not shown) are attached to a surface of the substrate 21 facing the substrate 22, and the lenticular optical composite film 1 is attached to a surface of the substrate 21 facing away from the substrate 22. A Thin Film Transistor (TFT)23 is attached to a surface of the substrate 22 facing the substrate 21, and another polarizing plate 26 is attached to a surface of the substrate 22 facing away from the substrate 21. When the current passes through the thin film transistor 23, an electric field is changed, which causes liquid crystal molecules in the liquid crystal layer 25 to deflect, thereby changing the polarization of light. The side of the substrate 22 facing away from the substrate 21 may also be provided with a backlight to provide a uniform bright light to the display panel layer 2.
The lenticular optical composite film 1 is attached to the surface of the display panel layer 2 and is used to modulate light emitted from the display panel layer 2 to produce light and shade contrast and multiple viewpoints, thereby providing a realistic 3D visual effect. Fig. 3 shows a schematic structural diagram of a lenticular optical composite film 1 provided according to an embodiment of the present invention, wherein the lenticular optical composite film 1 exists in a state of a separate product that has not been assembled with a display panel layer 2. In the illustrated embodiment, lenticular grating 11 and polarizer 12 of lenticular optical composite film 1 are bonded (e.g., adhered) together, which may be by an adhesive such as a pressure sensitive adhesive. A protective film 10 is attached to the surface of the back polarizer 12 of the lenticular sheet 11 for the purpose of facilitating storage and transportation of the lenticular optical composite film 1. A release film 13 may also be attached to the surface of polarizer 12 facing away from lenticular lens 11. The release film 13 may be adhered to the polarizer 12 by, for example, an adhesive having a thickness of 0.10mm, which has little influence on the thickness of the lenticular optical composite film. The adhesive may be a pressure sensitive adhesive. When attaching the lenticular optical composite film 1 to the display panel layer 2, the release film 13 is peeled off to expose the adhesive, and then the lenticular optical composite film 1 is bonded to the substrate 21 of the display panel layer 2.
The lenticular grating 11 in the lenticular optical composite film 1 as a light output directing element is capable of refracting light into different directions. Fig. 4 shows a schematic structural diagram of a lenticular grating 11 provided according to an embodiment of the present invention in a sectional view. In the embodiment shown, the plano-convex lenticular array 112 and the plano-concave lenticular array 113 of the lenticular 11 combine to form a prism-free array. The outer surfaces of the non-prismatic mirror arrays (i.e., the surfaces of the plano-convex and concave lenticular arrays 112 and 113 that face away from each other) are flat surfaces. Referring to fig. 4, one side of the plano-convex lenticular array 112 is a plane and the other side is formed of a plurality of convex curved surfaces, and one side of the plano-concave lenticular array 113 is a plane and the other side is formed of a plurality of concave curved surfaces. The concave curved surfaces of the plano-concave lenticular array 113 and the convex curved surfaces of the plano-convex lenticular array 112 are complementary to each other. The array of plano-convex cylindrical lenses 112 can be seen as being formed by combining a plurality of plano-convex cylindrical lenses 1121 arranged side by side, each plano-convex cylindrical lens 1121 having a longitudinal axis, and the longitudinal axes of the plano-convex cylindrical lenses 1121 being parallel to each other. The plano-concave cylinder array 113 can be seen as being composed of a combination of a plurality of plano-concave cylinders 1131 arranged side by side, the longitudinal axes of the plano-concave cylinders 1131 being parallel to each other. The plano-convex lenticular array 112 of 5 plano-convex lenticules 1211 and the plano-concave lenticular array 113 of 5 plano-concave lenticules 1311 are shown in fig. 4, but the specific number may be increased or decreased as appropriate.
The plano-convex lenticular array 112 and the plano-concave lenticular array 113 have a difference in refractive index. This difference may be less than the difference in refractive index between a conventional lens and air. In the embodiments provided by the present invention, the refractive index n of the plano-convex lenticular array 1121Refractive index n higher than that of the plano-concave lenticular array 1132. Alternatively, the refractive index difference n between the plano-convex lenticular array 112 and the plano-concave lenticular array 113△May be about 0.1 to 0.3, such as about 0.15 to 0.25, or such as about 0.2. Alternatively, the refractive index n of the plano-convex lenticular array 1121May be about 1.56 to about 1.66, for example about 1.61. Alternatively, the refractive index n of the plano-concave lenticular array 1132About 1.36 to about 1.46, for example about 1.41. The plano-convex lenticular array 112 and the plano-concave lenticular array 113 are concave-convex complementary, and no air exists between the plano-convex lenticular array and the plano-concave lenticular array, so that the adverse effect on the light output of the lenticular grating caused by the large refractive index difference between the air and each lenticular array is avoided. The smaller refractive index difference between the two lenticular arrays that are complementarily concave-convex joined together can reduce the light output crosstalk and can reduce the observer's dependence on the observation angle when viewing a 3D image, thereby resulting in a greater degree of freedom in use. Such a lenticular array also has a smaller reflectance so that the observed image has less interference.
Referring back to fig. 2, the above desired effect can also be optimized in combination with the lenticular pitch P of the plano-convex lenticular array 112 in the lenticular grating 11. As shown in fig. 2 and 4, the lenticular pitch P is the width of the plano-convex lenticular 1121 measured in the curvature direction, which is obtained by measuring along a direction perpendicular to the longitudinal axis of the plano-convex lenticular 1121. In a multi-view naked eye 3D display, one plano-convex lenticular 1121 may cover a plurality of (composite) pixels or sub-pixels. Multiple viewpoints, e.g. 4, 5 or 6 viewpoints, are formed by combining (composite) pixels or sub-pixels with plano-convex lenticules. The lenticular pitch P may range from 123.000 to 125.000 μm, such as 123.500 to 124.500 μm, or such as 124.432 μm.
The array of plano-convex lenticules 112 in the lenticular 11 can be oriented with respect to a row or column of pixels (sub-pixels), e.g., the longitudinal axis of any one of the plano-convex lenticules 1121 in the array of plano-convex lenticules 112 can be tilted at an angle with respect to the pixel column direction. Optionally, the angle of inclination is about 5 ° to 45 °, such as about 10 ° to 40 °, or such as about 15 ° to 35 °, or such as about 20 ° to 30 °, or such as may be 25 °. This tilt helps to reduce moir é.
The plano-convex lenticular array 112 and the concave lenticular array 113 can be made of the same or different materials, and the selected material can be one of the following materials or any combination thereof: an acrylic material, a polymeric material such as a polycarbonate material or a polyurethane material, a silicone material, an unsaturated polyester material, an epoxy material, or other suitable transparent material. In FIG. 4, the outer surface of the non-prismatic mirror array is shown with liners 111, 114 attached, and an adhesive layer 115, such as a pressure sensitive adhesive, is applied to liner 114 away from high index plano-convex lenticular array 112 to engage polarizer 12. The backing layers 111, 114 may be of a thermoplastic polyester material, for example of a polyester resin (PET) material. The liners 111, 114 are approximately 0.1mm thick to minimize the overall thickness of the lenticular optical composite film. In the case where the prism-free array of planoconvex lenticular array 113 and planoconvex lenticular array 113 is sufficiently strong, at least one of the liners 111, 114 may be omitted.
Embodiments of the present invention relate to plano-convex lenticular arrays 112 and plano-concave lenticular arrays 113 that may be non-switchable lenticules, i.e. they each have fixed optical properties. In any case, the plano-convex and plano-concave lenticular arrays 112, 113 are thus always in the lens mode.
Fig. 5 is a schematic structural diagram of a polarizer according to an embodiment of the present invention, which is shown in a cross-sectional view. In the illustrated embodiment, polarizer 12 is a laminated structure including a polarizing film 122 and two support films 121, 123 attached to opposite surfaces of polarizing film 122, respectively. The polarizing film 122 may be made of polyvinyl alcohol (PVA), and may absorb iodine molecules having a dichroic absorption function, and the iodine molecules are sequentially arranged on the PVA film through stretching and alignment, thereby forming a polarizing film having a dichroic absorption property. And the two supporting films 121 and 123 can be made of cellulose Triacetate (TAC) films, so that the extended PVA film is prevented from retracting, and the PVA film is prevented from being damaged by external substances such as water vapor, ultraviolet rays and the like. An adhesive layer 124, such as a pressure sensitive adhesive, may be applied to the support film (shown as support film 123 in fig. 4) of polarizer 12 away from lenticular lens 11 to bond release film 13 or display panel layer 2. The specific chemical composition of the two support films 121, 123 may differ slightly, for example TAC film and 0-TAC film, respectively.
Referring to fig. 6, a side view of a polarizer provided according to an embodiment of the present invention is shown. Alternatively, length X of polarizer 12 may range from about 230.000 to 250.000mm, such as from about 235.000 to 245.000mm, or such as from about 242.968 + -0.100 mm. Alternatively, width Y of polarizer 12 may range from about 120.000 to 150.000mm, such as from about 130.000 to 140.000mm, or such as from about 137.432 + -0.100 mm. Alternatively, polarizer 12 may have a thickness in the range of about 0.13 to 0.15mm, or about 0.14mm, for example. Alternatively, polarizer 12 may have an absorption axis A that is at an angle α to the X-direction in the range of about 9 to 11, such as about 10 + -0.8.
The embodiment of the utility model provides a method of equipment bore hole 3D display is still provided, include:
providing the above-described lenticular optical composite film 1;
providing a display panel layer 2;
the polarizer 12 of the lenticular optical composite film 1 is attached to the surface of the glass substrate 21 of the display panel layer 2 facing away from the glass substrate 22.
In an embodiment of the invention, the method of assembling a naked eye 3D display further comprises removing the release film from the polarizer.
Fig. 7 shows a schematic structural diagram of another lenticular grating 11 provided according to an embodiment of the present invention in a sectional view. The lenticular sheet 11 of fig. 7 differs from the lenticular sheet 11 of fig. 4 in that in the lenticular sheet of fig. 7, the polarizer 12 is bonded (e.g., glued) to the lenticular sheet 11 and is closer to the plano-convex lenticular array 112 than to the plano-concave lenticular array 113. The refractive indices of the plano-convex lenticular array 112 and the concave lenticular array 113, and the difference in refractive index therebetween, can be referred to the embodiment shown in fig. 4.
In the above-mentioned lenticular array, the planoconvex lenticules of the planoconvex lenticular array and the planoconvex lenticules of the planoconvex lenticular array are both lenticules having one axis. In addition, a lenticular lens having two intersecting axes (e.g., two axes that intersect perpendicularly) may also be used to form a lenticular grating in accordance with embodiments of the present invention. In this case, the plano-concave lenticular array is composed of a plurality of plano-concave lenticular lenses each having two intersecting axes, and the plano-convex lenticular array is composed of a plurality of plano-convex lenticular lenses each having two intersecting axes, the plano-concave lenticular array and the plano-convex lenticular array being joined together in a concavo-convex complementary manner to constitute the prism-free array, and wherein the refractive index of the plano-convex lenticular array is higher than that of the plano-concave lenticular array. The polarizer is attached to the lenticular grating to form a lenticular optical composite film. In some embodiments, the grating may include a sphere and a concave lens complementary to the sphere relief. The refractive index of the spherical lens is different from that of the concave lens. The sphere lens can be replaced by a ball cutting lens.
The embodiment of the utility model provides a method for preparing a cylindrical lens optical composite film, as shown in figure 8, the method includes:
s1, forming a lenticular lens; the method comprises the steps of forming a first cylindrical lens array, forming a second cylindrical lens array, enabling the opposite surfaces of the first cylindrical lens array and the second cylindrical lens array to be concave-convex complementary, and enabling the opposite surfaces of the first cylindrical lens array and the second cylindrical lens array to be formed into planes; and
and S2, attaching the polarizer to the lenticular grating to obtain the lenticular optical composite film.
As shown in fig. 9, in some embodiments, a method of making a lenticular optical composite film comprises:
s10, forming a lenticular lens;
s20, providing a polarizer;
s30, providing a protective film;
s40, providing a release film;
s50, attaching the polaroid to the lenticular grating;
s60, attaching the protective film to the surface of the lenticular lens, which is opposite to the polarizer;
s70, attaching the release film to the surface of the polarizer, which faces away from the lenticular lens; and
s80, unify the protection film after the joint, the lenticular grating, the polaroid and the whole that the release film is constituteed and cut, obtain the utility model discloses a lenticular optical composite film.
The following describes a method for manufacturing a lenticular lens in detail by way of specific examples.
Example 1
Fig. 10 to 15 show an exemplary method of manufacturing a lenticular sheet, and fig. 16 shows a corresponding flowchart.
S101, as shown in fig. 10, the first underlayer 111 is spread, and the first liquid lenticular lens-forming material 41 is applied to the surface of the first underlayer 111, so that the first liquid lenticular lens-forming material 41 is deposited on the surface of the first underlayer 111.
S102, still referring to fig. 10, the first mold 31 is brought close to the first liquid lenticular lens-forming material 41 on the side of the first liquid lenticular lens-forming material 41 facing away from the first liner 111. The approach speed may be a constant speed, a variable speed, or a combination of constant and variable speeds. In the illustrated embodiment, the first mold 31 is a platen, one side surface of which is configured as a first molding surface 311 having a plurality of concave arcs 312. The plurality of concave arcs 312 are designed on the principle of conforming to the desired configuration of the plurality of convex arcs of the plano-convex lenticular array 112.
S103, referring to fig. 11, the first liquid lenticular lens-forming material 41 is pressed with the first molding surface 311 of the first mold 31. The surface of the first liquid lenticular-forming material 41 facing away from the first substrate layer 111 assumes a configuration in which a plurality of convex curved surfaces are arranged side by side, forced by the shape of the first molding surface 311 of the first mold 31.
S104, after obtaining the desired convex arc configuration, curing the extruded first liquid lenticular lens-forming material 41. The curing process may be an ultraviolet curing process. The solidified first liquid lenticular-forming material 41 is shaped into a plano-convex lenticular array.
S105, referring to fig. 12, after the curing process is completed, the first mold 31 is removed to expose the plano-convex lenticular array.
S106, referring to fig. 13, the second liquid-state lenticular-forming material 42 is applied to the convex curved surfaces of the plano-convex lenticular array, and the second liquid-state lenticular-forming material 42 is piled up on and conforms to the convex curved surfaces of the plano-convex lenticular array. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41.
S107, referring to fig. 14, the second liquid lenticular-forming material 42 is approached with the second mold 32 on a side of the second liquid lenticular-forming material 42 facing away from the plano-convex lenticular array. The approach speed may be a constant speed, a variable speed, or a combination of constant and variable speeds. In the illustrated embodiment, the second mold 32 is a platen, one side of which is configured as a second molding surface 321 of flat configuration. The second liquid lenticular-forming material 42 is pressed with the second molding surface 321. The surface of the second liquid lenticular-forming material 42 facing away from the plano-convex lenticular array assumes a planar configuration, forced by the shape of the second forming surface 321 of the second mould 32.
After the desired planar configuration is obtained, the extruded second liquid lens-forming material 42 is subjected to a curing process S108. The curing process may be an ultraviolet curing process. The cured second liquid-state lenticular-forming material 42 is shaped into a plano-concave lenticular array, and the plano-concave lenticular array and the plano-convex lenticular array are joined together in a concavo-convex complementary manner.
S109, after the curing process is completed, the second mold 32 is removed to expose the plano-concave lenticular lens array.
S110, referring to fig. 15, the second liner layer 114 is attached to the plano-concave lenticular array, so that the lenticular grating is manufactured.
In the case where the lenticular grating 11 in the lenticular optical composite film 1 does not require the liners 111, 114, the first liner 111 may be removed after step S109 and step S110 may be omitted.
Those skilled in the art will appreciate that the example 1 may be modified in many ways, for example, in step S107, a platen may be replaced with a platen as the second mold to form the flat surface of the plano-concave lenticular array. Referring to fig. 16, an alternative step S107' to step S107 is shown: the second mold 32 is pressed against the surface of the second liquid lenticular-forming material 42 facing away from the array of plano-convex lenticules and the second mold 32 is rolled on a horizontal axis. The scroll can be in one direction or back and forth. The second mold 32 is a press roll, and its outer peripheral surface is configured into a second molding surface of a flat configuration. The second liquid lenticular-forming material 42 is pressed and rolled out during the rolling of the second mold 32 so that the surface of the second liquid lenticular-forming material 42 facing away from the first substrate layer 111 appears flat.
Example 2
Fig. 18 to 20 show an exemplary method of manufacturing a lenticular grating, and fig. 23 shows a corresponding flowchart.
S201, as shown in fig. 18, the first liner layer 111 is spread out, and the first die 31 in a shape of a pressed plate is positioned relative to the first liner layer 111, so that a gap 313 exists between the first molding surface 311 of the first die 31 and the first liner layer 111.
S202, referring to fig. 19, the void 313 is filled with the first liquid lenticular-forming material 41, so that the first liquid lenticular-forming material 41 is accumulated in the void 313.
S203, still referring to fig. 19, the first liquid lenticular-forming material 41 in the space 313 is subjected to a curing process. The solidified first liquid lenticular-forming material 41 is shaped into a plano-convex lenticular array.
And S204, after the curing treatment is finished, removing the first mold 31 to expose the planoconvex lens array.
S205, referring to fig. 20, the second die 32 in the form of a platen is positioned with respect to the convex arcs of the plano-convex lenticular array such that there is a gap 322 between the second molding surface 321 of the second die 32 and the convex arcs.
S206, referring to fig. 21, the second liquid lenticular-forming material 42 is filled into the void 322 so that the second liquid lenticular-forming material 42 is accumulated in the void 322. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41.
S207, still referring to fig. 22, the second liquid-state-lenticular-forming material 42 in the space 322 is subjected to a curing process. The cured second liquid-state lenticular-forming material 42 is shaped into a plano-concave lenticular array which is joined together in a concavo-convex complementary manner and is forced into the shape of a flat plate of the second molding surface 321 of the second mold 32, the surface of the plano-concave lenticular array facing away from the plano-convex lenticular array being planar.
And S208, after the curing treatment is finished, the second mold 32 is removed, and the plano-concave cylindrical lens array is exposed.
S209, referring to fig. 23, the second liner layer 114 is attached to the plane of the plano-concave lenticular array, so that a lenticular grating is manufactured.
In case the lenticular grating 11 in the lenticular optical composite film 1 does not require the liners 111, 114, the first liner 111 may be removed after step S208 and step S209 may be omitted.
Example 3
One exemplary method of making a lenticular grating is described herein with reference to figure 24. Reference numerals referred to in this example refer to examples 1 and 2.
S301, the first liner layer 111 is spread out, and the first liquid lenticular lens forming material 41 is applied to the surface of the first liner layer 111, so that the first liquid lenticular lens forming material 41 is deposited on the surface of the first liner layer 111.
S302, the first mold 31 in the form of a platen is brought close to the first liquid lenticular lens-forming material 41 on the side of the first liquid lenticular lens-forming material 41 facing away from the first liner 111.
S303, the first liquid lenticular lens-forming material 41 is pressed with the first molding surface 311 of the first mold 31. The surface of the first liquid lenticular-forming material 41 facing away from the first substrate layer 111 assumes a configuration in which a plurality of convex curved surfaces are arranged side by side, forced by the shape of the first molding surface 311 of the first mold 31.
S304, after obtaining the desired convex arc configuration, the extruded first liquid lenticular lens-forming material 41 is cured. The solidified first liquid lenticular-forming material 41 is shaped into a plano-convex lenticular array.
S305, after the curing process is completed, the first mold 31 is removed to expose the plano-convex lenticular array.
S306, the second liquid lenticular forming material 42 is applied to the second liner layer 114, and the second liquid lenticular forming material 42 is deposited on the second liner layer 114. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41.
S307, the convex curved surfaces of the plano-convex lenticular array are covered with the second liquid-state lenticular-forming material 42 together with the second liner layer 114, and the second liquid-state lenticular-forming material 42 is attached to and conforms to these convex curved surfaces.
S308, the surface of the second liner layer 114 facing away from the first liner layer 111 is pressed by the second die 32 in the form of a platen, thereby pressing the second liquid-state lenticular-forming material 42. The surface of the second liquid lenticular-forming material 42 facing away from the first substrate layer 111 assumes a planar configuration, forced by the shape of the second molding surface 321 of the second mold 32.
S309, after the desired planar configuration is obtained, the second liquid-state lens-forming material 42 is subjected to a curing process. The cured second liquid-state lenticular-forming material 42 is shaped into a plano-concave lenticular array, and the plano-concave lenticular array and the plano-convex lenticular array are joined together in a concavo-convex complementary manner.
S310, after the curing process is finished, the second mold 32 is removed. Thus, a lenticular lens is manufactured.
In the case where the first and second underlayers 111 and 114 are not required for the lenticular grating 11 in the lenticular optical composite film 1, the first and second underlayers 111 and 114 may be removed after step S310.
Example 4
One exemplary method of making a lenticular grating is described herein with reference to fig. 25. Reference numerals referred to in this example refer to examples 1 and 2.
S401, the first underlayer 111 is spread out, and the first liquid lenticular lens-forming material 41 is applied to the surface of the first underlayer 111, so that the first liquid lenticular lens-forming material 41 is deposited on the surface of the first underlayer 111.
S402, the first mold 31 in the form of a platen is brought close to the first liquid lenticular lens-forming material 41 on the side of the first liquid lenticular lens-forming material 41 facing away from the first liner layer 111.
S403, the first liquid lenticular lens-forming material 41 is pressed with the first molding surface 311 of the first mold 31. The surface of the first liquid lenticular-forming material 41 facing away from the first substrate layer 111 assumes a configuration in which a plurality of convex curved surfaces are arranged side by side, forced by the shape of the first molding surface 311 of the first mold 31.
S404, after obtaining the desired convex arc configuration, the extruded first liquid lenticular lens-forming material 41 is cured. The solidified first liquid lenticular-forming material 41 is shaped into a plano-convex lenticular array.
S405, after the curing process is completed, the first mold 31 is removed to expose the plano-convex lenticular array.
S406, the second mold 32 in the form of a platen is positioned with respect to the convex arcs of the plano-convex lenticular array such that there is a gap 322 between the second molding surface 321 of the second mold 32 and the convex arcs.
S407, the second liquid lenticular forming material 42 is filled into the void 322, so that the second liquid lenticular forming material 42 is deposited in the void 322. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41.
S408, the second liquid-state-lenticular-forming material 42 in the space 322 is subjected to a curing process. The cured second liquid-state lenticular-forming material 42 is shaped into a plano-concave lenticular array which is joined together in a concavo-convex complementary manner and is forced into the shape of a flat plate of the second molding surface 321 of the second mold 32, the surface of the plano-concave lenticular array facing away from the plano-convex lenticular array being planar.
S409, after the curing process is completed, the second mold 32 is removed to expose the plano-concave lenticular lens array.
S410, attaching the second liner layer 114 to the plane of the plano-concave lenticular array. Thus, a lenticular lens is manufactured.
In the case where the lenticular grating 11 in the lenticular optical composite film 1 does not require the liners 111, 114, the first liner 111 may be removed after step S409 and step S410 may be omitted.
Example 5
One exemplary method of making a lenticular grating is described herein with reference to fig. 26. Reference numerals referred to in this example refer to examples 1 and 2.
S501, the first liner layer 111 is spread out, and the first mold 31 in the shape of a pressed plate is positioned relative to the first liner layer 111, so that a gap 313 exists between the first molding surface 311 of the first mold 31 and the first liner layer 111.
S502, the gap 313 is filled with the first liquid lenticular forming material 41, so that the first liquid lenticular forming material 41 is deposited in the gap 313.
S503, the first liquid-state lenticular lens forming material 41 in the space 313 is subjected to a curing process. The solidified first liquid lenticular-forming material 41 is shaped into a plano-convex lenticular array.
S504, after the curing process is completed, the first mold 31 is removed to expose the plano-convex lenticular array.
S505, the second liquid-state lenticular-forming material 42 is applied to the convex curved surfaces of the plano-convex lenticular array, and the second liquid-state lenticular-forming material 42 is piled up on and conforms to the convex curved surfaces of the plano-convex lenticular array. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41.
S506, the second liquid lenticular-forming material 42 is brought close to the second liquid lenticular-forming material 42 with the second mold 32 in a platen shape on the side of the second liquid lenticular-forming material 42 facing away from the plano-convex lenticular array and the second liquid lenticular-forming material 42 is pressed with the second molding surface 321 of the second mold 32. The surface of the second liquid lenticular-forming material 42 facing away from the first substrate layer 111 assumes a planar configuration, forced by the shape of the second molding surface 321 of the second mold 32.
S507, after obtaining the desired planar configuration, the extruded second liquid-state lens-forming material 42 is subjected to a curing process. The cured second liquid-state lenticular-forming material 42 is shaped into a plano-concave lenticular array, and the plano-concave lenticular array and the plano-convex lenticular array are joined together in a concavo-convex complementary manner.
S508, after the curing process is completed, the second mold 32 is removed to expose the plano-concave lenticular lens array.
S509, the second liner layer 114 is attached to the plane of the plano-concave lenticular array. Thus, a lenticular lens is manufactured.
In case the lenticular grating 11 in the lenticular optical composite film 1 does not require the liners 111, 114, the first liner 111 may be removed after step S508 and step S509 may be omitted.
Example 6
One exemplary method of making a lenticular material is described herein with reference to fig. 27. Reference numerals referred to in this example refer to examples 1 and 2.
S601, spreading the first liner layer 111 flat, and positioning the first mold 31 in a shape of a pressed plate relative to the first liner layer 111, so that a gap 313 exists between the first molding surface 311 of the first mold 31 and the first liner layer 111.
S602, the gap 313 is filled with the first liquid lenticular forming material 41, so that the first liquid lenticular forming material 41 is deposited in the gap 313.
S603, the first liquid-state lenticular lens forming material 41 in the space 313 is subjected to a curing process. The solidified first liquid lenticular-forming material 41 is shaped into a plano-convex lenticular array.
S604, after the curing process is finished, the first mold 31 is removed to expose the plano-convex lenticular array.
S605, the second liquid lenticular forming material 42 is applied to the second liner layer 114, and the second liquid lenticular forming material 42 is deposited on the second liner layer 114. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41.
S606, the convex curved surfaces of the plano-convex lenticular array are covered with the second liquid-state lenticular-forming material 42 together with the second liner layer 114, and the second liquid-state lenticular-forming material 42 is attached to and conforms to these convex curved surfaces.
S607, the surface of the second liner layer 114 facing away from the first liner layer 111 is pressed by the second die 32 in the form of a platen, thereby pressing the second liquid-state lens-forming material 42. The surface of the second liquid lenticular-forming material 42 facing away from the first substrate layer 111 assumes a planar configuration, forced by the shape of the second molding surface 321 of the second mold 32.
S608, after obtaining the desired planar configuration, the second liquid-state lens-forming material 42 is subjected to a curing process. The cured second liquid-state lenticular-forming material 42 is shaped into a plano-concave lenticular array, and the plano-concave lenticular array and the plano-convex lenticular array are joined together in a concavo-convex complementary manner.
S609, after the curing process is finished, the second mold 32 is removed. Thus, a lenticular lens is manufactured.
In the case where the liners 111, 114 are not required for the lenticular grating 11 in the lenticular optical composite film 1, the first and second liners 111, 114 may be removed after step S609.
Example 7
One exemplary method of making a lenticular grating is described herein with reference to fig. 28. Reference numerals referred to in this example refer to examples 1 and 2.
S701, the first underlayer 111 is spread out, and the first liquid-state lenticular lens forming material 41 is applied to the surface of the first underlayer 111, so that the first liquid-state lenticular lens forming material 41 is deposited on the surface of the first underlayer 111.
S702, the first mold 31 in the form of a platen is brought close to the first liquid lenticular lens-forming material 41 on the side of the first liquid lenticular lens-forming material 41 facing away from the first liner 111.
S703, the first liquid lenticular lens-forming material 41 is pressed with the first molding surface 311 of the first mold 31. The surface of the first liquid lenticular-forming material 41 facing away from the first substrate layer 111 assumes a configuration in which a plurality of convex curved surfaces are arranged side by side, forced by the shape of the first molding surface 311 of the first mold 31.
S704, after obtaining the desired convex arc configuration, the extruded first liquid lenticular lens-forming material 41 is cured. The solidified first liquid lenticular-forming material 41 is shaped into a plano-convex lenticular array.
S705, after the curing process is completed, the first mold 31 is removed to expose the plano-convex lenticular array.
S706, the second liner layer 114 is fixedly laid on the second molding surface 321 of the second platen-like mold 32.
S707, the second die 32 in the form of a platen is positioned with respect to the convex curved surfaces of the plano-convex lenticular array such that a gap 322 exists between the second liner layer 114 and the convex curved surfaces.
At S708, the second liquid lenticular forming material 42 is filled into the void 322, so that the second liquid lenticular forming material 42 is deposited in the void 322. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41.
S709, the second liquid-state-lenticular-forming material 42 in the space 322 is subjected to a curing process. The cured second liquid lenticular-forming material 42 is shaped into a plano-concave lenticular array which is joined together in a concavo-convex complementary manner and whose surface facing away from the plano-convex lenticular array assumes a planar configuration, subject to the shape of the second molding surface of the second mold 32.
S710, after the curing process is finished, the second mold 32 is removed. Thus, a lenticular lens is manufactured.
In the case where the first and second underlayers 111 and 114 are not required for the lenticular grating 11 in the lenticular optical composite film 1, the first and second underlayers 111 and 114 may be removed after step S710.
Example 8
One exemplary method of making a lenticular grating is described herein with reference to fig. 29. Reference numerals referred to in this example refer to examples 1 and 2.
S801, spreading the first liner layer 111 flat, and positioning the first mold 31 in a shape of a pressed plate relative to the first liner layer 111, so that a gap 313 exists between the first molding surface 311 of the first mold 31 and the first liner layer 111.
S802, the gap 313 is filled with the first liquid lenticular forming material 41, so that the first liquid lenticular forming material 41 is deposited in the gap 313.
S803, the first liquid-state lenticular lens forming material 41 in the space 313 is subjected to a curing process. The solidified first liquid lenticular-forming material 41 is shaped into a plano-convex lenticular array.
S804, after the curing process is finished, the first mold 31 is removed to expose the plano-convex lenticular array.
S805, the second liner layer 114 is fixedly laid to the second molding surface 321 of the second die 32 in a platen shape.
S806, the second die 32 in the form of a platen is positioned relative to the convex curves of the plano-convex lenticular array such that there are gaps 322 between the second liner layer 114 and the convex curves.
S807, the second liquid lenticular forming material 42 is filled into the void 322, so that the second liquid lenticular forming material 42 is deposited in the void 322. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41.
S808, the second liquid-state-lenticular-forming material 42 in the space 322 is subjected to a curing process. The cured second liquid lenticular-forming material 42 is shaped into a plano-concave lenticular array which is joined together in a concavo-convex complementary manner and whose surface facing away from the plano-convex lenticular array assumes a planar configuration, subject to the shape of the second molding surface of the second mold 32.
S809, after the curing process is finished, the second mold 32 is removed. Thus, a lenticular lens is manufactured.
In the case where the first and second underlayers 111, 114 are not required for the lenticular grating 11 in the lenticular optical composite film 1, the first and second underlayers 111, 114 may be removed after step S809.
Example 9
Fig. 30 shows an exemplary method for producing a lenticular sheet, and fig. 31 shows a corresponding flowchart. In the apparatus used in the method, material rolls 70 and 75 are used to receive the webs of first and second substrates 111 and 114, respectively. The first mold 31 is configured as a press roll, and a plurality of concave arc surfaces 312 arranged side by side in a circumferential direction are formed on an outer circumferential surface of the press roll to define a first molding surface 311. The first mold 31 is disposed adjacent to the clincher roll 71, and forms a nip between the first molding surface 311 of the first mold 31 and the outer circumferential surface of the clincher roll 71. The second mold 32 is configured as a press roller whose outer circumferential surface is a flat surface to constitute a second molding surface. The second mold 32 is disposed adjacent to the hugging roll 76 and forms a nip between the second molding surface of the second mold 32 and the outer circumferential surface of the hugging roll 76. The apparatus also includes two sets of curing apparatus 61, 62. The first curing device 61 is downstream of the hugging roll 71 and adjacent to the first mold 31 and comprises a first light source 612, a first reflector 611 and a first collimating light modulating member 613. The second curing device 62, which is located downstream of the pinch roller 76 and adjacent to the second mold 32, includes a second light source 622, a second reflector 621, and a second collimated light modulating element 623.
The process of preparing a lenticular grating according to the present example includes the steps of:
s901, the material roller 70 rotates in the arrow direction to pay out the first liner 111, and the first liner 111 is sent to the hugging roller 71.
S902, the first liquid lenticular lens-forming material 41 is applied to the outer circumferential surface of the first mold 31 at the first glue nozzle 51 at the position a. As the first mold 31 rotates in the arrow direction, the first liquid lenticular-forming material 41 fills the gap between the first liner layer 111 and the first molding surface 311. At the hugging roller 71, the first liquid lenticular forming material 41 starts to engage with the first underlayer 111.
S903, the first underlayer 111 to which the first liquid lenticular lens-forming material 41 is bonded travels to the first curing device 61. Under the action of the first curing device 61, the first liquid lenticular-forming material 41 is cured to form a plano-convex lenticular array.
S904, the first liner layer 111 to which the plano-convex lenticular lens array is bonded is sent to the pinch roller 76 via the pinch roller 72 and the support roller 73.
S905, the material roller 75 rotates in the arrow direction to pay out the second liner 114, and the second liner 114 is sent to the flat outer peripheral surface of the second mold 32 via the support roller 78.
S906, the second liquid lenticular-forming material 42 is applied to the surface of the second liner 114 at the second nozzle 52 at the position b. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41.
S907, as the second mold 32 rotates in the arrow direction, the second liquid-state lenticular lens-forming material 42 fills the gaps between the plurality of convex curved surfaces of the plano-convex lenticular array and the second liner layer 114. Under the action of the hugging rollers 76, the second liquid lenticular-forming material 42 begins to engage and conform to the convex curved surfaces of the plano-convex lenticular array.
S908, the first and second substrates 111 and 114 pass around the plano-convex lenticular array and the second liquid lenticular forming material 42 to the second curing device 62. The second liquid lenticular-forming material 42 is cured to form, by the action of the second curing device 62, a plano-concave lenticular array which is joined to the plano-convex lenticular array in a concavo-convex complementary manner, and the surface of the plano-concave lenticular array facing away from the plano-convex lenticular array assumes a planar configuration, subject to the shape of the second molding surface of the second mold 32. Thus, a lenticular lens is manufactured.
The lenticular sheet can then be sent to take-up roll 74 via take-up roll 77.
Example 10
Fig. 32 shows an exemplary method for producing a lenticular sheet, and fig. 33 shows a corresponding flowchart. The apparatus used in this method differs from the apparatus in fig. 29 in that the first glue nozzle 51 is not provided at position a but between the material roll 70 and the hugging roll 71, for example at position c, and the second glue nozzle 52 is not provided at position b but between the hugging roll 72 and the hugging roll 76, for example at position d.
The process of preparing a lenticular grating according to the present example includes the steps of:
s1001, the material roller 70 is rotated in the arrow direction to discharge the first liner 111, and the first nozzle 51 at the position c applies the first liquid lenticular-forming material 41 to the surface of the first liner 111. The first liner 111 carries the first liquid lenticular-forming material 41 to the hugging roller 71.
S1002, the first mold 31 rotates in the arrow direction. Starting from the hugging roll 71, the first mold 31 presses the first liquid lenticular forming material 41 with its first molding surface 311, so that the surface of the first liquid lenticular forming material 41 facing away from the first underlayer 111 exhibits a plurality of convex curved surfaces arranged side by side.
S1003, the first underlayer 111 carries the extruded first liquid lenticular-forming material 41 to the first curing device 61. Under the action of the first curing device 61, the first liquid lenticular-forming material 41 is cured to form a plano-convex lenticular array.
S1004, the first liner layer 111 to which the planoconvex lenticular lens array is bonded travels to the clincher roller 76 after passing through the clincher roller 72 and the support roller 73. The second glue nozzle 52 at position d applies the second liquid lenticular-forming material 42 to the plurality of convex curved surfaces of the plano-convex lenticular array. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41. The second liquid-state lenticular-forming material 42 is deposited over and conforms to the convex curved surface of the plano-convex lenticular array.
The first liner 111 carries the plano-convex lenticular array and the second liquid lenticular-forming material 42 to the clincher roller 76S 1005.
S1006, the material roller 75 is rotated in the arrow direction to pay out the second liner 114, and the second liner 114 is sent to the outer peripheral surface of the second die 32 via the support roller 78.
S1007, starting from the hugging roller 76, the second liner 114 starts to engage the second liquid lenticular forming material 42, and the second mold 32 presses the surface of the second liner 114 by means of its second molding surface 321, thereby pressing the second liquid lenticular forming material 42.
S1008, the first and second liners 111, 114 carry the plano-convex lenticular array and the extruded second liquid lenticular forming material 42 to the second curing device 62. The second liquid lenticular-forming material 42 is cured to form, by the action of the second curing device 62, a plano-concave lenticular array which is joined to the plano-convex lenticular array in a concavo-convex complementary manner, and the surface of the plano-concave lenticular array facing away from the plano-convex lenticular array assumes a planar configuration, subject to the shape of the second molding surface of the second mold 32. Thus, a lenticular lens is manufactured.
After that, the lenticular sheet is sent to the wind-up roller 74 via the pinch roller 77.
Example 11
Fig. 34 shows an exemplary method of manufacturing a lenticular grating, and fig. 35 shows a corresponding flow chart. The method uses an apparatus which differs from the apparatus of figure 29 in that the second liner 114, which is fed from the material roll 75, is not fed to the second mould 32, but to a hugging roll 81 located downstream of the second mould 32.
The process of preparing a lenticular grating according to the present example includes the steps of:
s1101, the material roller 70 rotates in the arrow direction to pay out the first liner 111, and the first liner 111 is sent to the hugging roller 71.
S1102, the first liquid lenticular-forming material 41 is applied to the outer circumferential surface of the first mold 31 at the first glue nozzle 51 at the position a. As the first mold 31 rotates in the arrow direction, the first liquid lenticular-forming material 41 fills the gap between the first liner layer 111 and the first molding surface 311. At the hugging roller 71, the first liquid lenticular forming material 41 starts to engage with the first underlayer 111.
S1103, the first underlayer 111, to which the first liquid lenticular lens-forming material 41 is bonded, travels to the first curing device 61. Under the action of the first curing device 61, the first liquid lenticular-forming material 41 is cured to form a plano-convex lenticular array.
S1104, the first underlayer 111 to which the plano-convex lenticular lens array is bonded is sent to the pinch roller 76 via the pinch roller 72 and the support roller 73.
S1105, the second liquid lens-forming material 42 is applied to the outer peripheral surface of the second mold 32 at the second nozzle 52 at the position b. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41.
S1106, as the second mold 32 rotates in the direction of the arrow, the second liquid-state lenticular forming material 42 fills the gaps between the plurality of convex curved surfaces of the plano-convex lenticular array and the second mold 32. At the hugging roller 76, the second liquid lenticular-forming material 42 begins to engage the convex curves of the plano-convex lenticular array.
S1107, the first liner 111 carries the plano-convex lenticular array and the second liquid lenticular forming material 42 to the second curing device 62. The second liquid lenticular-forming material 42 is cured to form, by the action of the second curing device 62, a plano-concave lenticular array which is joined to the plano-convex lenticular array in a concavo-convex complementary manner, and the surface of the plano-concave lenticular array facing away from the plano-convex lenticular array assumes a planar configuration, subject to the shape of the second molding surface of the second mold 32.
S1108, the first liner layer 111 carries the plano-convex lenticular lens array and the plano-concave lenticular lens array to the clincher roller 80 through the clincher roller 77 and the support roller 79.
S1109, the material roller 75 rotates in the arrow direction to pay out the second liner 114, and the second liner 114 is sent to the hugging roller 81 adjacent to the hugging roller 80.
The second liner 114 begins to engage the flat surface of the plano-concave lenticular array while passing through the nip between the hugging roll 80 and the hugging roll 81S 1110. Thus, a lenticular lens is manufactured.
After that, the lenticular sheet is sent to a take-up roll 74.
Example 12
Fig. 36 shows an exemplary method for producing a lenticular sheet, and fig. 37 shows a corresponding flowchart. The device used in this method differs from the device in fig. 33 in that the first glue nozzle 51 is not arranged at position a, but at position c as in fig. 21, and the second glue nozzle 52 is not arranged at position b, but at position d as in fig. 21.
The process of preparing a lenticular grating according to the present example includes the steps of:
s1201, the material roller 70 is rotated in the arrow direction to discharge the first liner 111, and the first nozzle 51 at the position c applies the first liquid lenticular-forming material 41 to the surface of the first liner 111. The first liner 111 carries the first liquid lenticular-forming material 41 to the hugging roller 71.
S1202, the first mold 31 rotates in the arrow direction. Starting from the hugging roll 71, the first mold 31 presses the first liquid lenticular forming material 41 with its first molding surface 311, so that the surface of the first liquid lenticular forming material 41 facing away from the first underlayer 111 exhibits a plurality of convex curved surfaces arranged side by side.
S1203, the first liner 111 carries the extruded first liquid lenticular-forming material 41 to the first curing device 61. Under the action of the first curing device 61, the first liquid lenticular-forming material 41 is cured to form a plano-convex lenticular array.
S1204, the first liner layer 111 to which the plano-convex lenticular array is bonded travels toward the clincher roller 76 after passing through the clincher roller 72 and the support roller 73. The second glue nozzle 52 at position d applies the second liquid lenticular-forming material 42 to the plurality of convex curved surfaces of the plano-convex lenticular array. The refractive index of the second liquid lenticular-forming material 42 is different from the refractive index of the first liquid lenticular-forming material 41. The second liquid-state lenticular-forming material 42 is deposited over and conforms to the convex curved surface of the plano-convex lenticular array.
S1205, the first liner layer 111 carries the plano-convex lenticular array and the second liquid lenticular-forming material 42 to the hugging roller 76.
S1206, starting from the pinch roller 76, the second mold 32 presses the surface of the second liquid lenticular-forming material 42 by means of the second molding surface 321 thereof.
S1207, the first liner layer 111 advances with the plano-convex lenticular array and the compressed second liquid lenticular forming material 42 to the second curing device 62. The second liquid lenticular-forming material 42 is cured to form, by the action of the second curing device 62, a plano-concave lenticular array which is joined to the plano-convex lenticular array in a concavo-convex complementary manner, and the surface of the plano-concave lenticular array facing away from the plano-convex lenticular array assumes a planar configuration, subject to the shape of the second molding surface of the second mold 32.
S1208, the first liner layer 111 reaches the clinching roller 80 with the plano-convex lenticular array and the plano-concave lenticular array passing through the clinching roller 77 and the support roller 79.
S1209, the material roller 75 rotates in the direction of the arrow to pay out the second liner 114, and the second liner 114 is sent to the hugging roller 81 adjacent to the hugging roller 80.
The second liner 114 begins to engage the flat surface of the plano-concave lenticular array while passing through the nip between the hugging roll 80 and the hugging roll 81S 1210. Thus, a lenticular lens is manufactured.
After that, the lenticular sheet is sent to a take-up roll 74.
The steps of the embodiments can be combined with the steps of the other embodiments without departing from the object of the embodiments of the present invention, and the processing tools and the features thereof, such as the first mold 31 and the first molding surface thereof, the second mold 32 and the second molding surface thereof, etc., used in the embodiments are common to each other.
In addition, the above examples have numbered the process steps S therein for the purpose of convenience of description, such as S101, S102 … S111, but are not intended to limit the sequence of the steps. The sequence of steps can be adjusted without departing from the purpose of the embodiments of the present invention. For example, step S905 in example 9 may be performed simultaneously with any of steps S901 to S904, or may be performed before step S901.
Although the above examples 1 to 12 all employ the first mold with the concave curved surface to form the plano-convex lenticular array first, and then further form the plano-concave lenticular array conforming to the plano-convex lenticular array using the second mold with the flat surface, those skilled in the art will appreciate that in other modified examples, the mold with the convex curved surface may be used to form the plano-concave lenticular array first, and then the mold with the flat surface may be used to further form the plano-convex lenticular array conforming to the plano-concave lenticular array.
The above description and drawings sufficiently illustrate embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may include structural, procedural, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the present invention includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this disclosure, although the terms "first," "second," etc. may be used in this disclosure to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, the terms "comprises" and "comprising," "including," and the like, when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present embodiments. It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Claims (10)
1. A lenticular optical composite film, comprising:
a first polarizer; and
the cylindrical lens grating is connected with the first polaroid and comprises a first cylindrical lens array and a second cylindrical lens array;
the surfaces of the first cylindrical lens array and the second cylindrical lens array, which are opposite to each other, are planes, the surfaces of the first cylindrical lens array and the second cylindrical lens array, which are opposite to each other, are concave-convex complementary, and the first polarizer is attached to the cylindrical lens grating.
2. A lenticular optical composite film according to claim 1 wherein one of the first lenticular array and the second lenticular array is a plano-convex lenticular array and the other lenticular array is a plano-concave lenticular array; wherein the content of the first and second substances,
one surface of the plano-convex cylindrical lens array is a plane, and a plurality of convex arc surfaces which are arranged side by side are formed on the other opposite surface; or one surface of the plano-concave lenticular array is a plane, and the other opposite surface is formed with a plurality of concave arc surfaces complementary to the plurality of convex arc surfaces of the plano-convex lenticular array;
the refractive index of the plano-convex lenticular array is higher than the refractive index of the plano-concave lenticular array.
3. A lenticular optical composite film according to claim 2 wherein the refractive index of the array of plano-convex lenticules differs from the refractive index of the array of plano-concave lenticules by a value n△N is not less than 0.1△≤0.3。
4. The lenticular optical composite film of claim 2,
refractive index n of the plano-convex lenticular array1N is not less than 1.561Less than or equal to 1.66; or
Refractive index n of the plano-concave cylinder lens array2N is not less than 1.362≤1.46。
5. A lenticular optical composite film according to any one of claims 1 to 4, wherein the lenticular grating comprises a pair of spaced apart liners; wherein the content of the first and second substances,
a surface of a first liner of the pair of liners facing away from a second liner is bonded to the first polarizer, the first and second arrays of prisms are sandwiched between the pair of liners, and a plane of each of the first and second arrays of prisms is bonded to one of the pair of liners.
6. The lenticular optical composite film according to any one of claims 1 to 4, wherein the first polarizer comprises:
a pair of spaced apart support membranes; and
a polarizing film sandwiched between the pair of support films and having an absorption axis;
wherein the lenticular lens is bonded to one of the pair of support films.
7. A lenticular optical composite film according to any one of claims 1 to 4, further comprising:
and the protective film is attached to the surface of the lenticular grating, which is back to the first polaroid.
8. A lenticular optical composite film according to any one of claims 1 to 4, further comprising:
and the release film is attached to the surface of the first polaroid, which is back to the lenticular grating.
9. A naked eye 3D display, comprising:
a display panel layer; and
a lenticular optical composite film according to any one of claims 1 to 7;
wherein the display panel layer is joined to the first polarizer of the lenticular optical composite film.
10. The naked-eye 3D display of claim 9, wherein the display panel layer comprises:
a pair of spaced apart glass substrates;
a color filter attached to a surface of a first glass substrate of the pair of glass substrates facing the second glass substrate;
a thin film transistor attached to a surface of the second glass substrate facing the first glass substrate;
a second polarizer attached to a surface of the second glass substrate facing away from the first glass substrate; and
a liquid crystal layer disposed between the pair of glass substrates;
the first polarizer of the cylindrical optical composite film is attached to the surface of the first glass substrate, which is opposite to the second glass substrate.
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| WO2021110028A1 (en) * | 2019-12-05 | 2021-06-10 | 北京芯海视界三维科技有限公司 | Lenticular optical composite film, preparation method therefor, and 3d display |
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| WO2021110028A1 (en) * | 2019-12-05 | 2021-06-10 | 北京芯海视界三维科技有限公司 | Lenticular optical composite film, preparation method therefor, and 3d display |
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Effective date of registration: 20220720 Address after: 100055 1-1808c, 15th floor, building 1, 168 Guang'anmenwai street, Xicheng District, Beijing Patentee after: Beijing Xinhai vision 3D Technology Co.,Ltd. Address before: 100055 1-1808c, 15th floor, building 1, 168 Guang'anmenwai street, Xicheng District, Beijing Patentee before: Beijing Xinhai vision 3D Technology Co.,Ltd. Patentee before: Vision technology venture capital Pte. Ltd. Patentee before: Diao Honghao |