TWI391745B - Microstructure optical plate and its marking manufacturing method - Google Patents

Description

Microstructured optical plate and marking manufacturing method thereof

The present invention relates to an optical plate and a method for manufacturing the same, and more particularly to a microstructured optical plate having both light collecting and/or light diffusing functions, and manufacturing of the mark having the microstructured optical plate and simultaneously forming a marking pattern. method.

The diffuser is an optical plate used in electronic products to diffuse and atomize the light of the light source, so that the screen has a uniform brightness, and different electronic products have different requirements on the screen quality. Therefore, the diffusion board manufacturer manufactures the diffusion board. At the same time, diffusing plates with different light transmittances are manufactured according to the requirements of downstream manufacturers. Although the light transmittance of the diffusing plates is different, the appearances all have the same flaky shape and are difficult to distinguish, when the downstream manufacturers do not When confusing the diffusion plates of different penetrations, an instrument can be used to measure the penetration of the diffusion plates to distinguish different diffusion plates.

However, in order to achieve the advantages of lightness and thinness of the display, cost reduction, etc., there are many development studies that integrate the light diffusion effect of the diffusion plate in the display module and the light collecting effect of the brightness enhancement film into an optical plate. a diffusing plate having a light collecting and/or light diffusing effect, wherein a plurality of microstructures are formed on a surface away from the light source, and the microstructures have a regular pattern such as a prismatic shape, an arcuate shape, a pyramid shape, and/or an irregular pattern. Manufacturers also manufacture a variety of diffusers with different microstructures according to the needs of downstream manufacturers.

The diffusing plate with microstructure has a thin plate shape in appearance, the micro structure is very small, the visual observation is not easy to distinguish, and the light transmittance is also about the same, so that it cannot be discriminated by the instrument to measure the transmittance, so this After the diffusion plate is manufactured, a protective film is attached to the two opposite surfaces thereof, and the protective film can protect the microstructure on the one hand, and can be made into different colors on the one hand to distinguish the difference between the different diffusion plates. When downstream manufacturers get the diffusion plate, they can be identified by the protective film.

However, it takes time to attach the protective film and increase the manufacturing cost of the diffusion plate. In order to reduce the manufacturing cost, many manufacturers have cancelled the filming action, but this has increased the difficulty for downstream assemblers to distinguish different diffusion plates.

Accordingly, it is an object of the present invention to provide a microstructured optical sheet having a marking pattern that is easily identifiable and a method of manufacturing the same.

Accordingly, the present invention has a microstructured optical plate having a plurality of microstructures on a surface of the microstructured optical plate, and at least one marking pattern on the other surface of the optical plate, and the other The surface does not have a microstructure or has an irregular pattern.

The method for manufacturing a mark of a microstructured optical plate according to the present invention is such that the microstructured optical plate passes through a marking roller unit having a marking member on a surface thereof, and the marking roller unit rotates to contact the marking member with the microstructured optical plate. The surface forms a marking pattern corresponding to the marking member on the surface of the microstructured optical plate. A spray liquid may also be sprayed on the surface of the microstructured optical plate to form the mark pattern on the surface of the microstructured optical plate.

Wherein, in the microstructured optical plate of the present invention, the microstructures are regular or irregular, and the regular shapes are prismatic, pyramidal, cylindrical, etc., and may have the function of collecting or diffusing light, and the microstructure The function does not need to be defined; irregular shapes such as sandblasting on the surface and general embossing. The microstructures are formed by a surface-mounted roller and at least one mirror roller having an adjustable surface temperature. The manufacturing method is that after the plate is pushed out by the die, it passes between a surface-structured roller and at least one surface-adjustable mirror roller, so that the plate is pressed by the micro-structured roller, and the roller surface is slightly The structural shape is pressed onto the board by thermal transfer. The number of mirror rollers can be increased as needed to optimally control the temperature of the sheet.

In a preferred embodiment of the present invention, the marking operation may be performed together in an in-line production process, such that one surface of the microstructured optical plate has the marking pattern, and the marking pattern may be formed by embossing or may be It is formed by liquid coating, and the pattern of the marking pattern is not limited. The above method can be matched with the original production line equipment, and has the advantages of simple and convenient process.

In a preferred embodiment of the present invention, the marking member of the present invention is adhered to the endmost mirror roller in the microstructure pressing process, and the surface temperature of the mirror roller is controlled at 90 to 150 ° C. When the mirror roller is rotated to make the marking member contact When the sheet is applied, the sheet is pressed by the roller to form a concave marking pattern having a depression depth of 10 to 300 μm, more preferably 20 to 200 μm, and most preferably 50 to 150 μm.

The marking member has a thickness of 20 to 2000 μm, more preferably 30 to 1000 μm, and most preferably 40 to 500 μm. The material may be a polyimide anti-welding tape, a Teflon tape, or a polytetrafluoroethylene-glass fiber blended tape, which is bonded to the surface of the mirror roller by the adhesive on the back side, the adhesive and The marker itself is made of a heat-resistant material, and does not melt at a high temperature, and has better properties such as heat resistance, electrical properties, and mechanical strength.

The invention can also set the marking member on the conveying roller and the drawing roller in the manufacturing process. The height of the marking member can be 0.5~10mm, more preferably 1~8mm, and the height is too low to print the stamp, too high. It is easy to affect the conveyance of the sheet. The height of the marking member refers to the distance between the surface of the marking member and the surface of the roller when the marking member is disposed on the surface of the conveying roller or the take-up roller. When the marking member is adhered to the surface of the roller, the height of the marking member refers to the thickness of the marking member, but the surface of the roller may also be provided with a slightly concave groove for the marking member to be fitted and fitted, at this time, the marking member The portion is lower than the surface of the roller, and the other portion protrudes from the surface of the roller. Therefore, when the marker is partially embedded, the height refers to the thickness of the protruding portion of the marker.

In addition to the height limitation of the marking member disposed on the take-up roller, in order to avoid the high pressure applied by the take-up roller, it is easy to push the marking member downward, and the marking member is preferably designed with a beveled structure, which can reduce the marking member being hit by the take-up roller. The power of falling.

The marking member disposed on the conveying roller and the take-up roller can adhere to a marking liquid, so that the marking member contacts the surface of the microstructured optical plate to form a marking pattern. The marking liquid is mainly transparent and colorless, and therefore has no optical influence on the optical plate. The marking liquid may be selected from liquids having a difference in reflectance between the dried coating and the microstructured optical sheet of 0.1 to 3.0, and if it is less than 0.1, it will be unrecognizable, and if it is 0.1 or more, it can be visually recognized, for example, an antistatic agent. The difference in reflectance between the dried coating and the microstructured optical plate is greater than 3.0, which affects optical properties such as WD40 rust inhibitor or acetone. It is also possible to use a compound having ultraviolet color development effect, which is colorless in the visible light range, and can be colored outside the visible light region, and can generate blue light or red light after being irradiated with UV light, and can be identified. Since the antistatic agent is used in the process itself, it is selected as the marking liquid, and is separated from the antistatic agent used in the process by the concentration adjustment method, and does not affect the performance of the optical plate in terms of optical properties such as color. Will not affect its light diffusion effect. In addition, the fluorescent agent is also a commonly used material in the optical plate process, and can be identified by concentration adjustment and simple inspection, so it is also included in the selection of marking liquid. From the above, it is known that the above methods have optical properties such as chromaticity of the optical plate, and do not affect the light diffusion effect, so that inks having similar characteristics can be included in the scope of the present invention.

The invention may also apply an antistatic layer to the surface of the microstructured optical plate before the micro-structured optical plate passes through the marking roller unit, and when the marking roller unit rotates to bring the marking member into contact with the antistatic layer, The surface of the antistatic layer forms the marking pattern. Here, because the wiping of the marking member thins the coating of the antistatic layer to form a mark, or after wiping it, the uniform coating is turned into an uneven coating, causing a difference in reflectance to form an identifiable mark. .

The present invention can also spray a spray liquid onto the surface of the microstructured optical plate to form a mark pattern on the surface thereof. The spray liquid has the same properties as the labeled liquid, and the sprayed liquid is dried and coated. The difference in reflectance of the microstructured optical plate is from 0.1 to 3.0, and the spray liquid may be an antistatic agent or a liquid having an ultraviolet color developing effect, such as a fluorescent agent.

Preferably, the present invention performs the marking operation together in the manufacturing process of the optical sheet. For different kinds of optical plates, for example, different optical plates whose microstructures are pyramids, prisms, arcs, or irregular patterns, the marking patterns of different patterns can be matched with the markings of different patterns, and the marking patterns can be For different English letters, or different geometric figures, such as circles, squares, triangles, or barcodes, it is easy to distinguish different micro-structured optical plates to avoid confusion.

The foregoing and other technical aspects, features and advantages of the present invention will be apparent from the Detailed Description of the <RTIgt; Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 1 and 2, a first preferred embodiment of the microstructured optical sheet 10 of the present invention is a sheet of diffuser having a microstructure 12 and comprising: a body unit 1 and a plurality of indicia patterns 2.

The body unit 1 includes a body 11 and a plurality of microstructures 12 disposed on a surface of the body 11. The material of the body 11 is mainly a resin and may additionally add an additive, and the resin is preferably selected from the group consisting of polycarbonate (PC), polystyrene (PS), polymethyl methacrylate (PMMA), and A. The methyl acrylate-styrene (MS) is added with a light diffusing agent to impart a function of diffusing atomized light. The body 11 has a first face 111 and a second face 112 that are oppositely spaced apart.

The first surface 111 of the body 11 does not have any microstructure. The microstructures 12 are located on the second surface 112 of the body 11. The microstructure 12 of the embodiment has a surface roughness Ra of 5 μm, but is implemented. It may also be a prismatic shape, a pyramid shape, an upward or downward arc shape, etc., and the shape of the microstructures 12 is not limited, and may be a regular or an irregular structure, as long as a light diffusion effect can be achieved. can.

The marking pattern 2 is disposed on the first surface 111 of the body 11. The marking pattern 2 of the embodiment is an English letter "B". The recessed depth of the marking pattern 2 was 100 μm.

It should be noted that the type of the microstructured optical plate 10 of the present invention is not limited to the embodiment, as long as at least one surface has the microstructure 12, specifically, a surface (as in this embodiment). The second surface 112) has a regular pattern or an irregular pattern of microstructures 12; the other surface (such as the first surface 111 described in this embodiment) may not have any microstructure, or may have an irregular pattern microstructure. The marking pattern 2 must be formed on the first surface 111, because even if the first surface 111 has an irregular pattern, the marking pattern 2 does not affect the optical properties of the microstructured optical sheet 10, and the marking pattern 2 does not It may be provided on the second side 112 because the marking pattern 2 may affect the optical properties of a regular pattern structure such as enamel.

Referring to Figures 1, 3 and 4, a first preferred embodiment of the method for manufacturing a marking of a microstructured optical sheet 10 of the present invention is fabricated in conjunction with an optical sheet manufacturing apparatus 3 for fabricating the optical sheet 10 having the structure. The device 3 comprises: a marking roller unit 31, and a plurality of marking members 32 arranged on the marking roller unit 31. The marking roller unit 31 includes a roller 310 having a microstructure (not shown in FIG. 3), two mirror rollers 311, and a plurality of conveying rollers disposed in the downstream direction 4 of the roller 310 and the mirror roller 311. 312, and a plurality of take-up rollers 314 (only two are shown) disposed in the downstream direction 4 of the production line of the transport rollers 312.

The mirror rollers 311 are arranged adjacent to each other along the traveling direction of the production line, and the number of the mirror rollers 311 need not be limited in practice, as long as the surface temperature of at least one mirror roller 311 can be adjusted. The conveying rollers 312 are also arranged adjacent to each other at a distance from each other. The take-up rollers 314 are arranged one above the other in pairs. The marking member 32 is attached to the surface of the mirror roller 311 at the end, and has a thickness of 300 μm, and is made of a polytetrafluoroethylene-glass fiber blended tape.

The method of manufacturing the mark with the microstructured optical plate 10 includes:

(1) Step 51 is performed: the marker members 32 are adhered to each other at the surface of the mirror roller 311 at the end.

(2) performing step 52: the resin material for molding the body 11 and related additives, and the raw materials for molding the microstructures 12 are injected between the rollers 310 and the mirror roller 311, so that the material is subjected to the roller 310 and the mirror surface. The roller 311 rotates to form a plate-shaped body 11 and the microstructures 12. The microstructure 12 is formed by the microstructure of the roller 310 and not shown, and the body 11 and the micro Structure 12 still exhibits a softened state. It should be noted that, for convenience of illustration, FIG. 3 only illustrates the body unit 1 in a sheet shape, and the shape of the microstructures 12 is not illustrated.

(3) Step 53: When the softened body unit 1 is transported to the mirror electrode 311 at the end, the high temperature heat of the mirror roller 311 is about 90 ° C, so that the marking members 32 are attached to the corresponding body unit. When the first surface 111 of 1 is 111, the recessed marking pattern 2 is embossed on the first surface 111. The method of this embodiment is to emboss the marking pattern 2 having a recess depth of 100 μm on a sheet which is not completely hardened.

(4) Performing step 54: the microstructured optical plate 10 having the marking pattern 2 is continuously transported toward the downstream direction 4 of the production line, and the conveying rollers 312 rotate the ground while driving the microstructured optical plate 10 above. Moving in the downstream direction, the body unit 1 is gradually cooled and hardened while being conveyed and moved. When the microstructured optical plate 10 is transferred between the pick-up rollers 314, the take-up roller 314 applies a high voltage to the microstructured optical plate 10, which acts to pull the microstructured optical plate 10 and continue to Transported in the downstream direction. The microstructured optical plate 10 will be finished as a finished product through steps of cutting, chamfering, quality inspection, packaging, etc., and since these steps are not the improvement of the present invention, they will not be described in detail.

The marking pattern 2 of the microstructured optical plate 10 is not easily observed in a normal state, and therefore the marking pattern 2 does not affect the optical properties of the microstructured optical sheet 10, so that when applied to a display, the marking pattern 2 There will be no doubts that have been observed.

Since the microstructured optical plate 10 is manufactured in a large area and subsequently cut into small pieces, the present invention forms a plurality of marking patterns 2 on the microstructured optical plate 10, so that each small piece of optical plate after cutting is formed. Above, there may still be at least one marking pattern 2 for identification. However, in practice, it is also possible to provide only one marking member 32 and only form one marking pattern 2 for marking purposes. Further, the order in which the steps of the present invention are carried out is not limited to the present embodiment, and any steps may be continuously performed.

Referring to Figures 1 and 5, a second preferred embodiment of the method for manufacturing a mark having a microstructured optical sheet 10 of the present invention is substantially the same as the first preferred embodiment except that the optical sheet manufacturing apparatus 3 of the present embodiment Furthermore, a tray 313 is disposed correspondingly disposed below the transport roller 312 at the extreme end, and the tray 313 contains a yellow phosphor solution as a marking liquid. The marking member 32 of the present embodiment is in the shape of a B-shaped sheet made of rubber material, and is disposed on the surface of the endmost conveying roller 312 and spaced apart from each other along the axial direction of the conveying roller 312. The height of the marking members 32 is 5 mm.

The present embodiment has a marking manufacturing method for the microstructured optical plate 10. When the softened body unit 1 is transported to the endmost conveying roller 312, the conveying roller 312 rotates to pick up the marking liquid in the lower tray 313. The marking member 32 is adhered to the marking liquid. When the conveying roller 312 is rotated to fit the marking member 32 to the first surface 111 of the main body unit 1, the first surface 111 is printed with the marking member 32. The labeled liquid is adhered to form the B-shaped marking pattern 2, and the fabrication of the microstructured optical sheet 10 is completed, and the marking roller is printed at a corresponding interval for each rotation of the conveying roller 312. 2.

The marking pattern 2 is not easily observed in a general state, and only when the ultraviolet light illuminates the marking pattern 2, the fluorescent material absorbs ultraviolet light and emits visible light, which can be observed as a function of identifying different optical sheets. .

Referring to FIG. 6, a third preferred embodiment of the present invention having a microstructured optical panel 10 is substantially the same as the first preferred embodiment, and includes: a body unit 1 and a plurality of marking patterns 2, except that The body unit 1 of the present embodiment further includes an antistatic layer 13 formed on the first surface 111 of the body 11, and the marking patterns 2 are disposed on the surface of the antistatic layer 13.

Referring to Figures 6, 7, and 8, a third preferred embodiment of the method for manufacturing a mark of a microstructured optical sheet 10 of the present invention, in conjunction with the optical sheet manufacturing apparatus 3, omits the provision of the tray in the second preferred embodiment. 313 (Fig. 5), and the marker members 32 are disposed on the surface of the distalmost take-up roller 314. The label manufacturing method of this embodiment includes:

(1) Step 51 is performed: the marking members 32 are adhered to the surface of one of the take-up rollers 314.

(2) Step 52 is performed: This step is the same as the first preferred embodiment described above for molding the body 11 and the microstructure 12, and therefore will not be described.

(3) Step 55: The body 11 having the microstructure 12 formed on the surface is softened and transported to the transport rollers 312, and thus is transported toward the downstream direction 4 of the line by the rotation of the transport rollers 312.

(4) Performing step 56: coating the marking liquid, the marking liquid of the embodiment is an antistatic agent, and is applied to the first side 111 of the body 11 to form the antistatic layer 13. The antistatic layer 13 has an antistatic effect on the microstructured optical plate 10 to prevent dust and particles from adhering to the surface of the microstructured optical plate 10. It should be noted that, for convenience of illustration, FIG. 7 only shows the body unit 1 in a sheet shape, and each layer body is not separately illustrated.

(5) performing steps 53, 54: the microstructured optical plate 10 is transferred between the extraction rollers 314, and the antistatic layer 13 is in an incompletely hardened state, and the extraction rollers 314 pull the micro The structural optical plate 10 is transported in the downstream direction, and while the take-up roller 314 is rotated, the surface-exposed marking member 32 applies pressure to the antistatic layer 13 having the microstructured optical plate 10, so that the antistatic layer 13 is The localized coating is wiped off by the marking member 32 to form the marking pattern 2 corresponding to the marking member 32, thus completing the fabrication of the microstructured optical sheet 10. Moreover, as the take-up roller 314 continues to rotate, the micro-structured optical plate 10 has a plurality of rows of mark patterns 2 spaced apart from each other.

In some manufacturing processes of the optical plate, the antistatic layer 13 is coated as described in this embodiment to increase the protection of the optical plate. Therefore, the embodiment uses the pressure of the take-up roller 314 to emboss the antistatic layer 13 to form a mark pattern. 2. The microstructured optical plate 10 is identifiable through the marking patterns 2.

The body unit 1 used in this example was a methyl methacrylate-styrene resin (MS), and its horizontal reflectance was 40.9 using a LAIKO CO. LTD., Japan GR-225 machine. Anionic surfactant acts as the antistatic layer 13, and after the drying thereof, the reflectance is 40.7, so that the coating at the local position of the antistatic layer 13 is wiped off by the marking member 32, and the marking pattern 2 is formed. The reflectance of 0.2 is poor. Facing the micro-structured optical plate 10 and not observing the marking patterns 2, only when the microstructured optical plate 10 is rotated to a specific angle, the marking patterns 2 do not affect the The application of optical plates in displays.

On the other hand, the manner and marking principle of this embodiment can also be similar to the second preferred embodiment. In this case, it is not necessary to rely on the antistatic agent coated on the body 11, but a tray containing the marking liquid is disposed. Below the take-up roller 314, when the take-up roller 314 is rotated, the marking members 32 adhere to the marking liquid in the lower tray and are printed on the first surface 111 of the body 11. That is, the embodiment has two methods in application. One can first apply the marking liquid to the first surface 111 of the body unit 1, and then wipe the marking member 32 to form the marking pattern 2, and the other is to mark the marking. The liquid is applied to the marking member 32, and the marking liquid can be transferred to the surface of the body unit 1.

Referring to Figures 7 and 9, it should be noted that in order to avoid the high pressure applied by the take-up roller 314, the marking member 32 is easily pushed out. The design of the marking member 32 is shown in the side view of Fig. 9, and the edge has a beveled configuration, which is preferable. The marker 32 is pulled by the force that the roller 314 knocks.

Referring to Figures 1 and 10, a fourth preferred embodiment of the marking manufacturing method of the microstructured optical sheet 10 of the present invention differs from the first preferred embodiment in that the optical sheet manufacturing apparatus 3 of the present embodiment further comprises A spray unit 33 disposed at a position downstream of the take-up roller 314, the spray unit 33 has a plurality of spray heads 331 spaced apart from each other, and the spray unit 33 contains a yellow phosphor solution as a spray liquid. In the method of the embodiment, after the main unit 1 is transported by the drawing rollers 314, the yellow phosphor solution is sprayed on the first surface 111 by the spraying unit 33 to form a planar marking pattern 2 . . Of course, the spacing, size and shape of the pattern can be controlled by the spraying device in conjunction with the stylized system.

In the above preferred embodiment, the marking operation can be performed together in the online production process, so that the first surface 111 of the microstructured optical plate 10 has the marking pattern 2, can be matched with the original production line equipment, and has a simple process. The advantage of convenience.

Referring to Figures 1 and 11, a fifth preferred embodiment of the method for manufacturing a mark of a microstructured optical sheet 10 of the present invention, the optical sheet manufacturing apparatus 3 further includes three belts 34 each connecting the transport rollers 312, The belts 34 are all driven by a motor (not shown) to rotate, thereby driving the conveying rollers 312 to rotate, and the marking members 32 are disposed on the surface of the endmost belt 34, so that when the belt 34 is rotated to When the marking member 32 corresponds to the body unit 1 having the microstructured optical plate 10, the marking pattern 2 can also be embossed.

In addition, the belt provided for the marking member 32 may also be a belt for driving the rotation of the drawing rollers 314, so that the marking pattern 2 can also be embossed by the rotation of the belt.

Referring to FIG. 12, a sixth preferred embodiment of the present invention having a microstructured optical panel 10 is different from the first preferred embodiment in that the first surface 111 is provided with a plurality of irregular microstructures 14 such that The first surface 111 becomes a surface having an irregular pattern, and the marking patterns 2 are formed on the surface of the microstructures 14.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

10. . . Microstructured optical plate

1. . . Body unit

11. . . Ontology

111. . . First side

112. . . Second side

12. . . microstructure

13. . . Antistatic layer

14. . . microstructure

2. . . Marking pattern

3. . . Optical plate manufacturing device

31. . . Marker roller unit

310. . . Wheel

311. . . Mirror wheel

312. . . Transport roller

313. . . Shengpan

314. . . Pick up wheel

32. . . Marker

33. . . Spray unit

331. . . Nozzle

34. . . Belt

4. . . Downstream of the production line

51~56. . . step

Figure 1 is a side elevational cross-sectional view showing a first preferred embodiment of the present invention having a microstructured optical sheet;

Figure 2 is a bottom plan view of the first preferred embodiment;

Figure 3 is a schematic view of a device showing an optical plate manufacturing apparatus for fabricating the microstructured optical plate of Figure 1;

4 is a block diagram showing a first preferred embodiment of a method for manufacturing a mark of a microstructured optical plate of the present invention;

Figure 5 is a schematic view showing an apparatus for manufacturing an optical sheet used in a second preferred embodiment of the method for manufacturing a mark of a microstructured optical sheet of the present invention;

Figure 6 is a side elevational cross-sectional view showing a third preferred embodiment of the present invention having a microstructured optical sheet;

Figure 7 is a schematic view showing an apparatus for manufacturing an optical sheet used in a third preferred embodiment of the method for manufacturing a micro-structured optical sheet of the present invention for manufacturing the microstructured optical sheet of Figure 6;

Figure 8 is a block diagram showing the flow of the third preferred embodiment;

Figure 9 is a side view showing one of the marking members of the optical sheet manufacturing apparatus;

Figure 10 is a schematic view showing an apparatus for manufacturing an optical sheet used in a fourth preferred embodiment of the method for manufacturing a mark of a microstructured optical sheet of the present invention;

Figure 11 is a schematic view showing an apparatus for manufacturing an optical sheet used in a fifth preferred embodiment of the method for manufacturing a mark of a microstructured optical sheet of the present invention; and

Figure 12 is a side elevational cross-sectional view showing a sixth preferred embodiment of the present invention having a microstructured optical sheet.

10. . . Microstructured optical plate

1. . . Body unit

3. . . Optical plate manufacturing device

31. . . Marker roller unit

311. . . Mirror wheel

312. . . Transport roller

314. . . Pick up wheel

32. . . Marker

4. . . Downstream of the production line

Claims (28)

A marking manufacturing method for a microstructured optical plate, the marking optical unit having a marking member passing through a surface thereof, and the marking roller unit rotating to contact the marking member with the microstructured optical plate a surface, a marking pattern corresponding to the marking member is formed on the surface of the microstructured optical plate, wherein the marking member has a thickness of 20 to 2000 μm. The method of manufacturing a micro-structured optical sheet according to claim 1, wherein the microstructure is located on a surface of the microstructured optical sheet, and the marking pattern is located on the other of the microstructured optical sheets. The surface, and the other surface has no microstructure. The method of manufacturing a micro-structured optical sheet according to claim 1, wherein the microstructure is located on a surface of the microstructured optical sheet, and the marking pattern is located on the other of the microstructured optical sheets. The surface, and the other surface has an irregular pattern. The method for manufacturing a micro-structured optical plate according to claim 1, wherein the marking roller unit contacts the surface of the microstructured optical plate in a pressurized state to form a depression. Mark the pattern. The method for manufacturing a micro-structured optical sheet according to the fourth aspect of the invention, wherein the marking roller unit has a temperature of 90 to 150 °C. The method for manufacturing a micro-structured optical plate according to claim 4, wherein the marking member is selected from the group consisting of a polyimide-based solder resist tape, a Teflon tape, or a Teflon and glass. Fiber blended tape. The method of manufacturing a micro-structured optical sheet according to claim 1, wherein the microstructure is formed by a surface-structured roller and at least one surface-adjustable mirror roller. A marking manufacturing method for a microstructured optical plate, which is characterized in that a marking liquid is adhered to a surface of a marking member, and the microstructured optical plate is passed through a marking roller unit having a marking member on a surface thereof, and the marking roller unit Rotating causes the marking member to contact the surface of the microstructured optical plate to form a marking pattern corresponding to the marking member on the surface of the microstructured optical plate. A method of manufacturing a micro-structured optical sheet according to the invention of claim 8, wherein the marking member has a height of 0.5 to 10 mm. The method for manufacturing a micro-structured optical sheet according to the invention of claim 8, wherein the difference between the reflectance of the coating liquid after drying and the microstructured optical sheet is 0.1 to 3.0. A method of manufacturing a micro-structured optical sheet according to the invention of claim 8, wherein the marking liquid has an ultraviolet color developing effect. The method of manufacturing a micro-structured optical sheet according to claim 10, wherein the marking liquid system is an antistatic agent. A method of manufacturing a micro-structured optical sheet according to claim 11, wherein the marking liquid system is a fluorescent agent. A marking manufacturing method for a microstructured optical plate, which is coated with an antistatic layer on a surface of the microstructured optical plate, such that the microstructured optical plate passes through a marking roller unit having a marking member on a surface thereof, and the marking Rotating the roller unit causes the marking member to contact the antistatic layer in the antistatic layer The surface forms a marking pattern corresponding to the marking member. The marking manufacturing method for a microstructured optical plate according to claim 14, wherein the marking member has a height of 0.5 to 10 mm. A method for manufacturing a mark with a microstructured optical plate is sprayed with a spray liquid on the surface of the microstructured optical plate to form a mark pattern on the surface of the microstructured optical plate. The method of manufacturing a micro-structured optical sheet according to claim 16, wherein the microstructure is located on a surface of the microstructured optical sheet, and the marking pattern is located on the other of the microstructured optical sheets. The surface, and the other surface has no microstructure. The method of manufacturing a micro-structured optical sheet according to claim 16, wherein the microstructure is located on a surface of the microstructured optical sheet, and the marking pattern is located on the other of the microstructured optical sheets. The surface, and the other surface has an irregular pattern. The method of manufacturing a micro-structured optical sheet according to claim 16, wherein the difference between the reflectance of the sprayed liquid and the microstructured optical sheet is 0.1 to 3.0. A method of manufacturing a micro-structured optical sheet according to claim 16, wherein the spray liquid has an ultraviolet color developing effect. A method of manufacturing a micro-structured optical sheet according to claim 16, wherein the spray liquid system is an antistatic agent. A method of manufacturing a micro-structured optical sheet according to claim 16, wherein the spray liquid system is a fluorescent agent. Marking of micro-structured optical sheets according to item 16 of the patent application scope The manufacturing method, wherein the microstructure is pressed through a surface-structured roller and at least one mirror roller having an adjustable surface temperature. A microstructured optical plate having a plurality of microstructures on a surface of the microstructured optical plate and at least one marking pattern on the other surface of the microstructured optical plate, wherein The difference between the mark pattern and the reflectance of the microstructured optical plate is 0.1 to 3.0. A microstructured optical plate according to claim 24, wherein the surface of the microstructured optical plate provided with the marking pattern has no microstructure. A microstructured optical plate according to claim 24, wherein the surface of the microstructured optical plate provided with the marking pattern has an irregular pattern. The microstructured optical plate according to claim 24, wherein the marking pattern has a depth of depression of 10 μm to 300 μm. A microstructured optical plate having a plurality of microstructures on a surface of the microstructured optical plate and at least one marking pattern on the other surface of the microstructured optical plate, wherein The marking pattern has an ultraviolet coloring effect.