TW201249560A - Manufacturing method of roller used for manufacturing patterned retardation film - Google Patents

Abstract

A manufacturing method of a roller used for manufacturing a patterned retardation film is provided. A roller having a rotational axis and a roll surface is provided. A graver having a graving end is provided. The graving end has a plurality of micro structures which are constructed in parallel with each other. The graver carves the roller surface at a first depth to form a plurality of first pattern. The graver carves the roller surface at a second depth to form a plurality of second pattern.

Description

201249560

TW7620PA VI. Description of the Invention: [Technical Field] The present invention relates to a method of manufacturing a roller, and more particularly to a method of manufacturing a roller for manufacturing a retardation film. [Prior Art] With the advancement of display technology, a phase difference film has been developed. The phase difference film can produce optically different phase delays, resulting in a stereoscopic effect. The phase difference film can be applied to stereoscopic display glasses and stereoscopic display televisions. The retardation film must be maintained to a certain degree of accuracy to ensure its optical quality. However, the manufacturing speed of the retardation film cannot be effectively improved under the requirement of accuracy. As a result, researchers are currently working to develop a tool to quickly and accurately fabricate phase-difference films to meet industry needs. SUMMARY OF THE INVENTION The present invention relates to a method of manufacturing a roller for manufacturing a retardation film, which is engraved by an engraving tool so that the surface of the roller exhibits various special textures. The roller with a special grain can in turn quickly and accurately produce a retardation film by imprinting. According to an aspect of the invention, a method of manufacturing a roller for manufacturing a retardation film is proposed. The manufacturing method of the roller for producing a retardation film includes the following steps. Provide a scroll wheel. The roller has a rotating shaft and a roller surface. Provide a carving tool. The engraving tool has an engraving end. Engraving end 201249560 1 w /ozwr/\ There are several microstructures arranged in parallel. The engraving tool engraves the surface of the roller in a direction of rotation of the roller at a first depth to form a plurality of first annular groove structures. The microstructures engrave a plurality of first indentations in the first ring groove structures. The first inscription is substantially parallel to the direction of rotation of the roller. The engraving tool engraves the roller surface in a second depth along the direction of rotation of the roller to form a plurality of second ring groove structures. The microstructures engrave a plurality of second indentations in the second ring groove structures. The second engravings are substantially parallel to the direction of rotation of the rollers. The first ring groove structure having the first embossments and the second ring groove structures having the second scribe lines are alternately formed along the surface of the roller at a first depth and a second depth. According to another aspect of the present invention, a method of manufacturing a roller for manufacturing a retardation film is proposed. The manufacturing method of the roller for manufacturing a retardation film includes the following steps. Provide a scroll wheel. The roller has a rotating shaft and a roller surface. Provide a carving tool. The engraving tool has an engraving end. The engraved end has a plurality of microstructures arranged in parallel. The engraving tool engraves the surface of the roller at a first depth in a direction of 45 with respect to the direction of rotation of a roller to form a plurality of first indentations on the surface of the roller. The engraving tool engraves the surface of the roller in a direction of rotation of the roller at a second depth to form a plurality of annular groove structures. The microstructures engrave a plurality of second indentations in the annular groove structure, the second indentations being substantially parallel to the direction of rotation of the rollers. The ring grooves of the second depth are formed by equidistant spaces. According to still another aspect of the present invention, a method of manufacturing a roller for manufacturing a phase difference film structure is proposed. The manufacturing method of the roller for manufacturing a phase difference film structure includes the following steps. Provide a scroll wheel. The roller has a rotating shaft and a roller surface. Provide a carving tool. The engraving tool has a engraving 201249560 J W /62ϋΡΑ end, the engraving end has several micro-structures arranged in parallel. The depth is carved in the direction perpendicular to the direction of rotation of the roller. The first engraving is formed on the surface of the roller. The engraving and d are rolled at a second depth. The surface of the roller is engraved to form a plurality of rings. The ring grooves are engraved with a plurality of second engravings, and the direction of rotation of the rollers is substantially parallel. In the beans, the first, the first, the illusion, the text and the equidistant interval are formed. The above-mentioned contents of the ring groove structure are made more apparent and easy to understand. The following examples, together with the drawings, are described in detail as follows: [Embodiment] Various embodiments are described below in detail, and The engraving tool is used to engrave the roller such as T so that the surface of the roller presents various special lines. The roller with special grain can then quickly and accurately produce a retardation film by imprinting. However, the examples are only used as an example: the month does not limit the scope of the invention to be protected. Further, in the embodiments, unnecessary elements are omitted to clearly show the technical features of the present invention. 1 In the first embodiment, please refer to FIG. 1 and FIG. 2 and FIG. 21). FIG. 1 is a flow chart showing a manufacturing method of a roller for manufacturing a retardation film 600 (shown in FIG. 3). 2A to 2D are diagrams showing the two schematic diagrams of the i-th diagram. First, in step S101, as shown in Fig. 2A, the "roller 1" is provided. Roller 1〇〇 has a turn fortunately by 100c and a roller surface 1〇〇5 201249560 « VV r\ In the yet unengraved 刖, the roller surface 1〇〇a is a smooth cylindrical surface, that is, along the turn The diameters of the shafts 1〇〇c are the same, and the vertical distance of the roller surface, from the point to the axis of the shaft, is substantially uniform, and so on. In the present embodiment, the material of the roller 1 is, for example, copper (U). 2, in step S102, a carving machine is provided as in the second β 图. The engraving tool 900 has an engraved end 910. The engraving end 91 has a plurality of microstructures 9U arranged in parallel. The engraving tool _ has a hardness greater than that of the roller 1 〇〇, and its material is, for example, a diamond. The microstructure 91 is substantially identical to the pitch X1. ^ 911 Then, in step S103, as shown in FIG. 2C, the engraver and the 第-depth D! engrave the roller surface 100a in the __roller rotation direction c! to form a plurality of first ring grooves. Structure n〇. * In the step S103, the microstructure 9 of the engraving tool 9 (shown in Fig. 2B) engraves a plurality of first engravings m in the first ring groove structure 11'. The first engraved ill is substantially parallel to the direction of rotation of the roller C1. The width W900 of the engraving tool 900 determines the width W110 of each of the first ring-shaped structures 110. Therefore, the width W900 of the engraving tool 9A of step S102 is set to the width W110 of each of the first-ring groove nodes of step S103.曰 'σ In this step, the roller _ rotates the engraving tool 90 (4) with the rotation axis as the axis to vertically contact the roller surface just a to engrave a circle of the first ring groove structure 11 沿着 along the roller surface l〇〇a. The engraver is then separated from the roller 100 (e.g., the engraving tool 9 is away from the roller 100, or the roller 100 is remote from the engraving tool 900). Next, the engraving "tool 900 and the roller 100 are relatively moved in the direction of the rotating shaft 100c by a predetermined distance 6 201249560

IW / (} 2WA from D110 (for example, the engraving tool _ along the axis 2, the side (four) i or the roller 100 moves in the direction of the turn )). Then, _ is relatively close to the roller 100 (for example, the engraving tool _ move closer) The roller 100' or the roller 100 is away from the engraving tool 900) to engrave another ring of the first ring groove structure 11 〇. The predetermined distance between the engraving tool 900 and the roller 100 relative to the direction of the rotating shaft 100c is, for example, a carving tool. The width of the cut is such that the predetermined distance DU between the first annular groove structures 110 is substantially the width W11 of the annular groove structure 110. Then, in step S104, the engraving tool 9 is at a second depth. = The roller rotation direction Cl engraves the roller surface 1 〇〇a to form a plurality of 2 2 groove structures 120. In the enlarged view of the 2D figure, the roller surface l〇〇a before engraving is indicated by a broken line, thereby indicating The second depth (10) is different in size. The first depth D1 is smaller than the second depth D2. In the embodiment, the first depth ^ is between 1 micrometer (μιη) and 20 micrometers (handsome), and the second depth is D2 (_) to Between 20 micrometers (μιη) range. In 1 micro unengraved tool 900 The microstructure 910 (shown in FIG. 2) engraves a plurality of second scribes 121 in the second ring-groove structure 120, and the second scribes 121 are substantially parallel to the direction of rotation of the roller C1. The width W900 of 900 determines the width W120 of each of the second ring groove structures 120. In step S104, the roller 1〇〇 and the engraving tool 9 are similarly moved in a similar manner to step S103. The rotating shaft 100c is rotated centrally, and the engraving tool 9〇〇 vertically contacts the roller surface 100a to follow the roller surface 1〇〇a in the two first ring groove structures “ο 201249560

The J W7620FA door engraves the first ring groove structure 1 20 . Then, the engraving tool g〇〇 is relatively separated from the roller 100 (for example, the engraving tool 900 or the roller (10) is away from the engraving tool_). Next, the engraving/work wheel _ moves relative to the roller 100 in the direction of the rotation axis 100 < 2 relative to the width W110 of the first ring groove structure 11 (for example, the engraving tool _ moves in the direction of i〇〇c along the transfer car, or the roller 100 Move in the direction of the shaft hall). Then, the engraving tool _ is relatively close to the roller 1 ( (for example, the engraving tool 9 is moved closer to the roller 100 ′ or the roller is away from the engraving tool 900) to engrave the other ring of the second ring groove structure 120. In this way, the engraving tool 900 can be replaced by the first ice groove D1 and the second depth D2 along the roller surface 1〇〇a to form the first ring groove structures 110 and the first ring grooves m. Such second annular groove structures 12G of the second scribes 121. And the first scribe (1) and the second scribe 121 are substantially parallel to each other and substantially perpendicular to the direction of the rotation. . Referring to Fig. 3', an exploded perspective view of the retardation film 600 manufactured by the roller (10) of the first embodiment is shown. The first film line 611 transferred by the first engraving 111 is located at a lower position, and the second film 611 is embossed by the substrate 6〇1 containing the embossable resin layer. The second film line 621 which is transferred by the engraving 121 has a higher position, and after the polymerizable liquid crystal layer 62 is coated on the phase difference pattern s 610, a phase difference film 6A having a phase difference effect can be formed. SECOND EMBODIMENT Please refer to Fig. 4 and 5A to 5Bgl, and Fig. 4 (4) The roller for manufacturing a retardation film (shown in Fig. 6) in the second embodiment · 201249560

A flowchart of a method of manufacturing the TW7620PA, and FIGS. 5A to 5B are diagrams showing the steps of the fourth diagram. The manufacturing method of the roller 200 for manufacturing the retardation film 700 of the present embodiment is different from the manufacturing method of the roller 100 for manufacturing the retardation film 600 of the first embodiment in step S203, and the remaining similarities are not repeated. Narrative. After steps S201 to S202, the process proceeds to step S203. In step S203, as shown in Fig. 5A, the engraving tool 900 engraves the roller surface 200a at a first depth D1 at a direction of 45 with the roller rotation direction C2 to form a plurality of first notches 211 on the roller surface 200a. In this step, the roller 200 is first rotated about the axis of rotation 200c. Then, while the roller 200 is rotated, the engraving tool 900 moves in the direction of the rotating shaft 200c and contacts the rolling roller surface 200a at the first depth D1. Wherein, the rotation speed of the rotation of the roller 200 and the speed of the movement of the engraving tool 900 are appropriately controlled (e.g., equal), and a plurality of first notches 211 are formed on the roller surface 200a in the direction of 45°. In step S203, since the engraving tool 900 is engraved on the roller 200 in a 45° manner, the first engraving 211 forms a spiral structure. In this step, after the engraving tool 900 changes the starting point of the engraving, it is repeatedly engraved on the roller 200 in the above-described 45° manner so that the spiral first engraving 211 is entirely covered on the roller 200. Next, in step S204, as shown in Fig. 5B, the engraving tool 900 engraves the roller surface 200c in the roller rotating direction 200c in a manner similar to step S104 to form a plurality of annular groove structures 220. The microstructures 911 (shown in FIG. 2) engrave a plurality of second scribes 221 in the annular groove structure 220. The second scribes 221 are substantially parallel to the roller rotation direction C1. 201249560 1 W /ΌΖυΓ/Λ In this way, the engraving tool 900 can alternately form the first engraving 211 and the second engraving 221 at different depths along the roller surface 200. Further, the first scribe 211 and the direction of the rotating shaft 200c are 45 degrees, and the second scribe 221 is substantially perpendicular to the direction of the rotating shaft 200c. Referring to Fig. 6, there is shown an exploded perspective view of a retardation film 700 manufactured by using the roller 200 of the second embodiment. The roller 200 is used to imprint a phase difference pattern 710 on a substrate 071 containing an embossable resin layer, and the first film line 711 transferred by the first pattern 211 is located at a lower position, and the second pattern 221 is The transferred second film line 721 is located at a higher position, and after the polymerizable liquid crystal layer 720 is coated on the phase difference pattern 710, the phase difference film 700 having a phase difference effect can be formed. For the third embodiment, please refer to FIG. 7 and FIGS. 8A-8B. FIG. 7 is a flow chart showing a method for manufacturing the roller 300 for manufacturing the phase difference film structure 800 (shown in FIG. 9), FIG. 8A~ Figure 8B is a schematic diagram showing the steps of Figure 7. The manufacturing method of the roller 300 for manufacturing the phase difference film structure 800 of the present embodiment is different from the manufacturing method of the roller 100 for manufacturing the phase difference film structure 600 of the first embodiment in step S303, and the rest is the same. The description will not be repeated. After steps S301 to S302, the process proceeds to step S303. In step S303, as shown in FIG. 8A, the engraving tool 900 engraves the roller surface 300a at a first depth D1 in a direction transverse to the direction of rotation of the roller C1 (the 8A diagram does not rotate the roller 300, so the direction of rotation of the roller C1 is drawn Shown in Fig. 8B) to form a plurality of first notches 311 on the roller surface 300a. 201249560

TW7620PA In this step, the roller 300 is fixed in a state of not rotating. The engraving tool 900 moves in a direction transverse to the direction of rotation of the roller C1 and contacts the roller surface 300a at a first depth D1. In step S303, since the engraving tool 900 is engraved on the roller 300 in the transverse direction, the first engraving 311 forms a horizontal line structure. In this step, after the engraving tool 900 changes the starting point of the engraving, the engraving is repeated on the roller 300 in the above-described cross-cut manner so that the horizontally-shaped first engraving 311 is entirely covered on the roller 300. Next, in step S304, as shown in Fig. 8B, the engraving tool 900 engraves the roller surface 300c in the roller rotating direction 300c in a manner similar to step S104 to form a plurality of annular groove structures 320. The microstructures 911 (shown in FIG. 2) engrave a plurality of second engravings 321 in the annular groove structure 320. The second engravings 321 are substantially parallel to the direction of rotation of the roller C1. In this way, the engraving tool 900 can alternately form the first engraving 311 and the second engraving 321 along the roller surface 300 at different depths. Further, the first engravings 311 are substantially parallel to the direction of the rotating shaft 300c, and the second engravings 321 are substantially perpendicular to the direction of the rotating shaft 300c. Referring to Fig. 9, there is shown an exploded perspective view of a retardation film 800 manufactured by using the roller 300 of the third embodiment. The roller 300 is used to imprint the phase difference pattern 810 on a substrate 801 containing an embossable resin layer. The first film line 811 transferred by the first pattern 311 is located at a lower position, and the second pattern 321 is rotated. The second film line 821 is located at a higher position, and after the polymerizable liquid crystal layer 820 is coated on the phase difference pattern 810, the phase difference film 800 having a phase difference effect can be formed. In summary, although the present invention has been disclosed above in various embodiments, 11 201249560

I W/62UPA It is not intended to limit the invention. It is to be understood by those skilled in the art that the invention can be modified and modified without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. Referring to the drawings, a simple description of the drawings, Fig. 1 is a flow chart showing a manufacturing method for manufacturing a phase difference thin wheel according to the first embodiment. 2A to 2D are schematic views showing the steps of the first figure. Fig. 3 is a schematic exploded view showing the phase film produced by the roller of the first embodiment. Fig. 4 is a flow chart showing the manufacturing method of the roller for manufacturing a retardation film of the second embodiment. ~ Figures 5A-5B show schematic diagrams of the steps of Figure 4. Fig. 6 is a schematic exploded view showing the phase difference film of the wheel of the second embodiment. Fabrication of Roller of Membrane Structure Fig. 7 is a flow chart showing a method for manufacturing a phase difference thin. 8A-8B are diagrams showing the steps of each step of FIG. 7. Schematic diagram of the decomposition of the film Fig. 9 shows the phase difference made by the third embodiment (four) wheel. [Main component symbol description] 100, 200, 300: Roller 100a, 200a, 300a · Roller surface 12 201249560

TW7620PA 100c, 200c, 300c: shaft lOOd: diameter 110: first ring groove structure 111, 211, 311: first groove 120: second ring groove structure 121, 221, 321: second groove 220, 320: ring Slot structure 600, 700, 800: retardation film 601, 701, 801: substrate 610, 710, 810: phase difference patterns 611, 711, 811: first film lines 620, 720, 820: polymerizable liquid crystal layer 621, 721, 821: second film texture 900: engraving tool 910: engraving end 911: microstructure

Cl, C2: direction of rotation of the roller D1: first depth D110: predetermined distance D2: second depth D911: spacing S101 to S104, S201 to S204, S301 to S304: flow steps W110, W120, W900, W911: width 13

Claims (1)

201249560 W VII. Patent application scope: Included in the manufacturing method of a roller for manufacturing a phase difference film, a package for a roller, the roller has a shaft and a roller surface; 踹 is an engraving tool 'The engraving tool The engraving end has a plurality of microstructures arranged in parallel; The microstructures engrave a plurality of first-grain patterns in the Μ/groove, and, and the first-grain patterns are substantially parallel to the rotation direction of the 5-throw wheel; and the @-carvings have a second depth along the roller The surface of the crucible is engraved in a rotating direction to form a plurality of second ring groove knots, and the ring groove structure engraves a plurality of second engravings, and the crane 2 = the direction of rotation of the side rollers is substantially parallel; /, wherein the first along the surface of the roller The depth and the second depth alternate: the first ring groove structure of the first pattern and the second ring groove structure having the second pattern are reduced. A method of manufacturing a roller for manufacturing a phase difference thin film according to claim 1, wherein the first depth is smaller than the second depth. 3. The manufacturing method for manufacturing a phase difference thin roller according to claim 1, wherein the width of the engraving tool is substantially equal to the width of each of the first ring groove structure and each of the second ring groove structures. 4. A method for manufacturing a roller for manufacturing a retardation film, comprising: a roller provided with a rotating shaft and a roller table 201249560 TW7620PA providing an engraving tool, the engraver having a parallel arrangement Microstructure: ", ^, the engraving of the engraving tool at a first depth in the direction of the - roller rotation of 45. The engraved Y (four) roller surface to the bribe wheel table (four) depends on a number of - dry - the second depth engraves the groove ring groove structure along the direction of rotation of the roller, and the microstructures are substantially in the direction of the ringing = the second scribe" the second scribe and the roller traversing the second depth The annular groove structures are formed at equidistant intervals. The film roll 2:=: Γ is used to manufacture the phase difference thin::, the step of engraving the first scribes further includes the axis as the axis Rotating the roller; and moving in the direction of the touch shaft and manufacturing the phase difference thin film by the first depth film, the manufacturing method of the manufacturing method, wherein the second pattern is engraved The step further includes rotating the shaft as an axis Rollers; ^ engraving tool and the depth of the second roller contacts the surface. The manufacturing method of the t-wheel of the phase difference thin film of the fourth aspect of the invention is that the first depth is smaller than the second depth. The film is used in the manufacture of phase difference thin, "two manufacturing methods, wherein the width of the engraved jade is substantially equal to 15 201249560 1 VV / 〇 ^ ur / \ the width of each ring groove structure. The method for manufacturing a phase difference thinner and a roller as described in claim 4, wherein the engraving of the second engraving is performed after the step of engraving the first engravings. The manufacturer of a roller for manufacturing a phase difference film structure provides a roller having a rotating shaft and a roller surface. The carving tool has an engraving end, and the engraving has a plurality of microstructures arranged in parallel; The engraving tool engraves the @roller surface in a direction transverse to the direction of rotation of the roller to form a plurality of indentations on the surface of the roller; the engraving tool engraves the K wheel in a direction of rotation of the roller at a second depth Forming a plurality of annular groove structures, and the microstructures engrave a plurality of second scribes in the ring structure, the second scribes being substantially parallel to the rolling direction; wherein the second The method for manufacturing the roller for manufacturing a retardation film according to claim 10, wherein the step of engraving the first notch comprises: 'The engraving tool moves in a direction transverse to the direction of rotation of the roller and contacts the surface of the roller at the first depth. 丨 2. The roller for manufacturing a retardation film according to claim 10 of the patent application The manufacturing method, wherein the step of engraving the second engravings comprises: 201249560 D: W7620PA The shaft rotates the roller for the axis; and the μ engraving tool uses the first _ _ 13. as claimed in the patent; Γ contacts the surface of the roller. The method for manufacturing a phase difference according to the first aspect of the present invention, wherein the first depth is smaller than the second deep film, and the h-month patent range 1G item is used for manufacturing Phase difference I; manufacturing method of the fading wheel' wherein the width of the engraving tool is substantially equal to the width of each of the ring groove structures. + 15. Manufacture of a roller for manufacturing a retardation film according to claim 10 square The method wherein the step of engraving the second engravings is performed after the step of engraving the first engraving.