KR100866828B1 - Method and apparatus for fabricating a light guide panel - Google Patents

Abstract

The present invention relates to a light guide plate manufacturing method and a manufacturing apparatus, comprising a loading step of fixing the light guide plate to the stage, a light guide plate transfer step of linearly moving the stage with the light guide plate, and a tooth for scraping each pattern in contact with the light guide plate And a pattern forming step of forming a partial pattern on the light guide plate step by step by sequentially contacting and passing the light guide plate to each of the first scrapers forming the partial pattern. Therefore, in the present invention, each of the scrapers forms a light guide plate by dividing part of the pattern in steps, thereby dispersing the stress applied to the light guide plate to prevent deformation of the light guide plate, thereby improving the uniformity and accuracy of the pattern, and matching the horizontality between the light guide plate and the scraper. Even if the light guide plate is inclined, it is possible to form a uniform pattern on the light guide plate, transfer heat to the light guide plate to soften the light guide plate, facilitate scraping, and form a precise pattern. Minimize productivity and reduce manufacturing cost by increasing the replacement cycle of scraper, and form part of pattern on light guide plate by scraper so that tooth of each scraper is sequentially contacted with light guide plate instead of light guide plate by heater. By dispersing the heat delivered to the prevention of thermal deformation of the light guide plate to improve the quality of the light guide plate.

Description

Light guide plate manufacturing method and manufacturing apparatus {METHOD AND APPARATUS FOR FABRICATING A LIGHT GUIDE PANEL}

1 is a cross-sectional view showing a backlight unit according to the prior art,

2A to 2F are schematic views illustrating a light guide plate manufacturing method according to the present invention;

3 is a flowchart illustrating a light guide plate manufacturing method according to a first embodiment of the present invention;

4 is a flowchart illustrating a light guide plate manufacturing method according to a second embodiment of the present invention;

5 is a flowchart illustrating a light guide plate manufacturing method according to a third embodiment of the present invention;

6 is a perspective view showing a light guide plate manufacturing apparatus according to the present invention,

7 is a block diagram showing a light guide plate manufacturing apparatus according to the present invention,

8 is a schematic view showing a scraper of the light guide plate manufacturing apparatus according to the present invention;

9 is a schematic view showing another embodiment of the scraper of the light guide plate manufacturing apparatus according to the present invention;

10 is a side view showing a scraper of the light guide plate manufacturing apparatus according to the present invention;

11 is a perspective view illustrating a light guide plate manufacturing apparatus according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: stage 120: light guide plate transfer means

121: feed motor 122: lead screw

123: ball screw 124: belt

125: guide member 130, 140: first scraper

131,141: Tooth 131a, 141a: End

132,142: heater 151: first detection sensor

152: second detection sensor 153: sensor fixing member

160,170: first scraper 161,171: tooth

181: first lifting means 181a: lifting motor

181b: switching means 182: second lifting means

182a: lifting motor 182b: switching means

183: rapid lifting means 183a: lifting motor

183b: switching means 184: elevating member

190: control unit 210,220: second scraper

221,241 Tooth 230: Scraper conveying means

231: feed motor 232: lead screw

233: ball screw 234: transfer member

235: guide shaft 241: third lifting means

242: fourth lifting means 243: rapid lifting means

244: lifting member 410: third scraper

411: Tooth 510: Table

520: fixed frame

The present invention relates to a light guiding plate manufacturing method and a manufacturing apparatus, and more particularly to a light guiding plate manufacturing method and manufacturing apparatus for accurately forming a desired pattern on the light guiding plate, and suppressing deformation of the light guiding plate to enable the production of a light guiding plate having excellent quality. It is about.

In general, the technology of the device for displaying information on the screen has been changed from the analog CRT (Cathode Ray Tube) to a digital LCD (Liquid Crystal Display) to control the individual pixels independently, such LCD Unlike CRTs and Plasma Display Panels (PDPs), they are non-luminescent and thus cannot be used in the absence of light. Therefore, the LCD needs a back light unit for uniformly irradiating the information display surface for the purpose of making up for this drawback and using it in the dark.

Referring to the accompanying drawings, a conventional backlight unit provided with a light guide plate is as follows.

1 is a cross-sectional view showing a backlight unit according to the prior art. As shown in the drawing, the conventional backlight unit 10 includes a light source 11 that emits light, such as a lamp, and a pattern 12a formed on one side thereof to convert light incident from the light source 11 into a surface light source. A light guide panel 12, a reflection sheet 13 provided at one side of the light guide plate 12 to reflect light emitted from the light source, and diffuse and scatter light incident through the light guide plate 12 to display the entire screen. Diffusion sheet 14 for uniformizing the luminance at, and prism sheet 15 for increasing the front luminance by changing the light passing through the diffusion sheet 14 in a constant direction at a pitch and angle of prism shape, and a prism sheet ( 15 includes a Dual Brightness Enhancement Film (DBEF) 16 for reducing the loss of light passing through the light source, and a reflector 17 for reflecting the light of the light source 11 toward the light guide plate 12 is provided outside the light source 11. Is installed.

When the backlight unit 10 according to the related art is irradiated from the light source 11 and incident on the side surface of the light guide plate 12 to the inside of the light guide plate 12 through total reflection, one side of the light guide plate 12, ie, Visible light passing through the medium of the light guide plate 12 causes total reflection by the pattern 12a formed on the side surface, thereby changing to a surface light source.

The light guide plate 12 used in the conventional backlight unit 10 is included in a light receiving type flat display device such as a liquid crystal display (LCD) or the like and a surface light source device used in an illumination signboard. One side is processed into a pattern 12a having a predetermined shape in order to scatter the emitted light so as to form a uniform luminance, and the manufacturing method applied to form the optical pattern 12a in the light guide plate 12 may include Screen printing method, mold processing method, cutting method and the like.

Processing by the printing method has a long history and stable, but the process is complicated to cause a lot of defects in the printing process.

Mold processing method is suitable for mass production by direct injection of light guide plate by manufacturing shape with light scattering function after hardening by injecting molding resin such as PMMA (polymethylmethacrylate) into mold, but there are many defects due to heat deformation of light guide plate. , Not only has the disadvantage of increasing the cost and time required to manufacture the mold, but also changes the design of the pattern, making it impossible to easily modify the mold, and the reproducibility of the pattern shape is reduced. This is possible, but the light guide plate applied to medium and large displays such as a monitor and a TV has a problem that it is impossible to manufacture since it is 4 mm or more.

Recently, attention has been paid to cutting methods in order to shorten the time required for design and development of patterns, molds, steppers, etc. when changing models, and such cutting methods are methods for forming a groove pattern of a certain shape using a tool. to be.

However, the cutting method for manufacturing the light guide plate is not only difficult to form an accurate pattern due to the damage of the tool as the light guide plate is cut, but also to reduce the reproducibility of pattern formation, and to reduce the yield and production due to frequent replacement of expensive tools. Increasing the unit cost, the tool has a problem that the deformation by pressing the light guide plate when cutting.

Therefore, development of a method and apparatus for manufacturing a light guide plate capable of accurately forming a desired pattern on the light guide plate and suppressing the deformation of the light guide plate enables manufacturing a light guide plate having excellent quality, increasing yields and lowering manufacturing costs. It became necessary.

The present invention is to solve the above-mentioned conventional problems, an object of the present invention to accurately form the desired pattern on the light guide plate, and to suppress the deformation of the light guide plate to enable the production of a high quality light guide plate, and to increase the yield In addition, to provide a light guide plate manufacturing method and manufacturing apparatus that can lower the manufacturing cost.

In order to achieve the above object, the present invention provides a method of forming a pattern on a light guide plate, the method comprising: a loading step of fixing the light guide plate to a stage; a light guide plate transfer step of linearly moving the stage together with the light guide plate; And a pattern forming step of forming a partial pattern on the light guide plate in a stepwise manner by sequentially contacting and passing the light guide plate to each of the first scrapers forming a partial pattern by dividing the tooth to be scraped.

In addition, the present invention relates to a method for forming a pattern on a light guide plate, comprising: a plurality of second scrapers for forming a partial pattern by dividing a loading step for fixing the light guide plate to a stage and a tooth for scraping each pattern in contact with the light guide plate; And a pattern forming step of forming a partial pattern on the light guide plate by forming a plurality of patterns in the light guide plate by sequentially passing the scraper transfer step of transferring the light guide plate to each of the second scrapers.

In addition, the present invention is a method for forming the first and second patterns in the X- and Y-axis directions on the light guide plate, respectively, a loading step for fixing the light guide plate to the stage, and the light guide plate for transferring the stage in the X-axis direction together with the light guide plate By dividing the transfer step and the tooth for scraping each of the first patterns in contact with the light guide plate, the first light guide plate is sequentially contacted and passed through each of the first scrapers forming a part of the first pattern, thereby forming a part of the first pattern in the light guide plate step by step. The first pattern forming step of completing the entire first pattern, the light guide plate stopping step of stopping the light guide plate on which the first pattern is formed by the first pattern forming step, and a tooth for scraping each of the second patterns in contact with the light guide plate Having a plurality of second scrapers forming part of the second pattern in the Y-axis direction toward the light guide plate And a second pattern forming step of forming a part of the second pattern on the light guide plate by forming a portion of the second light guide plate by passing the scraper transfer step and each of the second scrapers sequentially contacting and passing through the light guide plate.

In addition, the present invention is a method for forming the first and second patterns in the X- and Y-axis directions on the light guide plate, respectively, a loading step for fixing the light guide plate to the stage, and the light guide plate for transferring the stage in the X-axis direction together with the light guide plate By dividing the transfer step and the tooth that scrapes each of the patterns in contact with the light guide plate, the light guide plate is sequentially contacted and passed through each of the first scrapers forming a part of the first pattern, thereby forming a part of the first pattern in the light guide plate step by step. A third pattern having a first pattern forming step of completing the entire pattern, a light guide plate stopping step of stopping the light guide plate on which the first pattern is formed by the first pattern forming step, and a third contacting the light guide plate to scrap each of the second patterns A scraper transfer step of transferring the scraper toward the light guide plate in the Y-axis direction, and a third scraper And forming a second pattern on the light guide plate at the same time by passing through and contacting the second light guide plate.

In addition, the present invention is a device for forming a pattern on the light guide plate, the stage in which the light guide plate is fixed, the light guide plate transfer means for transferring the light guide plate by linearly moving the stage, and arranged along the path of the light guide plate, each pattern in contact with the light guide plate And a plurality of first scrapers, each forming a partial pattern by dividing the tooth scraping a portion, and the light guide plate sequentially contacts and passes through each of the first scrapers to gradually form some patterns to form the entire pattern. It features.

In addition, the present invention relates to a device for forming a pattern on a light guide plate, comprising: a plurality of second scrapers each forming a part of the pattern by dividing a stage in which the light guide plate is fixed, a tooth in contact with the light guide plate and scraping each of the patterns; It comprises a scraper conveying means for arranging the second scrapers of the side by side in contact with the light guide plate, and each of the second scrapers are in contact with the light guide plate to pass through sequentially to form a partial pattern on the light guide plate to form a whole pattern. do.

In addition, the present invention is a device for forming the first and second patterns in the X-axis and Y-axis direction, respectively, in the light guide plate, the stage in which the light guide plate is fixed, and the light guide plate transfer means for transferring the light guide plate by transferring the stage in the X-axis direction And a plurality of first scrapers arranged along a moving path of the light guide plate to divide the tooth scraping each of the first patterns in contact with the light guide plate to form a portion of the first pattern, respectively, and each of the second patterns in contact with the light guide plate. And a plurality of second scrapers each forming a part of the second pattern by dividing the tooth to be scraped, and scraper conveying means for arranging the plurality of second scrapers side by side and contacting and passing the light guide plate in the Y-axis direction. Step by step forming a portion of the first pattern by sequentially contacting each of the first scraper Over the first pattern to form a whole, and the first characterized in that two scrapers each of which forms a second phase formed by the entire pattern to the second pattern portion by passage in contact in order to stop the light guide plate.

In addition, the present invention is a device for forming the first and second patterns in the X-axis and Y-axis direction, respectively, in the light guide plate, the stage in which the light guide plate is fixed, and the light guide plate transfer means for transferring the light guide plate by transferring the stage in the X-axis direction And a plurality of first scrapers arranged along a moving path of the light guide plate to divide the tooth scraping each of the first patterns in contact with the light guide plate to form a portion of the first pattern, respectively, and each of the second patterns in contact with the light guide plate. A third scraper having a scraping tooth, and a scraper conveying means for passing the plurality of third scrapers in contact with the light guide plate in the Y-axis direction, wherein the light guide plate is sequentially contacted with each of the first scrapers to pass a portion of the first pattern. It is formed in steps to form the entire first pattern, and the third scraper passes through the stopped light guide plate. As it characterized by forming a second pattern overall.

In addition, the scraper is formed by scraping the pattern on the light guide plate, characterized in that the contact with the light guide plate comprises a plurality of divided teeth to scrap each of the patterns.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

2A to 2F are schematic diagrams illustrating a method of manufacturing a light guide plate according to the present invention, and FIG. 3 is a flowchart illustrating a method of manufacturing a light guide plate according to a first embodiment of the present invention. The light guide plate manufacturing method according to the first embodiment of the present invention includes a loading step S11 for fixing the light guide plate 1 to the stage 110, a light guide plate transfer step S12 for linearly moving the light guide plate 1, and a light guide plate ( The pattern forming step S15 of forming a plurality of patterns Px on the light guide plate 1 by using a plurality of first scrapers 130 and 140 sequentially contacting 1) to complete the entire pattern Px.

In the loading step S11, when the light guide plate 1 is loaded into the stage 110 by a transport robot or by hand, the stage 110 chucks the light guide plate 1 in a vacuum or by clamping means provided in the stage 110. The light guide plate 1 is fixed.

The light guide plate transfer step S12 transfers the light guide plate 1 together by converting the rotational force of the motor into linear motion or by linearly moving the stage 110 as shown in FIG. 2A using a pneumatic or hydraulic cylinder.

By measuring the horizontalness of both sides of the light guide plate 1 transferred in the light guide plate transfer step S12, the light guide plate 1 and the first scrapers 130 and 140 are matched with each other so that the light guide plate 1 is inclined. In order to improve the uniformity of the pattern (Px) formed by scraping on it may include a horizontal level measuring step (S13) and the horizontal matching step (S14).

In the horizontal level measuring step S13, the slope of the light guide plate 1 is calculated by measuring the height of the light guide plate 1 by the first and second detection sensors 151 and 152 respectively positioned on both sides of the transfer path of the light guide plate 1. do.

Horizontal matching step (S14) is placed in a direction orthogonal to the movement path of the light guide plate 1 according to the horizontal degree of the light guide plate (1) measured by the horizontal measurement step (S13) are installed side by side By slightly elevating both ends of the first scrapers 130 and 140, the inclination of the first scrapers 130 and 140 is adjusted to match the horizontality of the light guide plate 1 and the first scrapers 130 and 140.

The pattern forming step S15 divides the teeth 131 and 141 scraping each of the patterns Px in contact with the light guide plate 1, thereby forming the light guide plate 1 on each of the first scrapers 130 and 140. By sequentially contacting and passing through, part of the pattern Px is formed in the light guide plate 1 step by step to complete the entire pattern Px.

That is, as illustrated in FIGS. 2B and 2C, the plurality of first scrapers 130 and 140 are arranged side by side on the movement path of the light guide plate 1, but are arranged along the movement path of the light guide plate 1. The first scrapers 130 and 140 are sequentially in line contact with each of the first scrapers 130 and 140 so that each of the first scrapers 130 and 140 scrapes the light guide plate 1 with the teeth 131 and 141 so that a part of the entire pattern Px is stepped on the light guide plate 1. Then, the entire pattern Px is formed. Therefore, each of the first scrapers 130 and 140 forms the light guide plate 1 by dividing a portion of the pattern Px in steps so as to disperse the stress applied to the light guide plate 1 to prevent deformation of the light guide plate 1 as well as the pattern. (Px) improves uniformity and accuracy.

The first scrapers 130 and 140 may be made of two in the present embodiment, but not limited thereto, and may be formed of three or more, and the tooth forming the light guide plate 1 as well as the entire pattern Px as well as some patterns Px, respectively. 131 and 141 may be divided, and the teeth 131 and 141 may have a shape for forming a “V” groove in the light guide plate 1, but are not limited thereto. It may have a shape for.

In the pattern forming step S15, the heaters 132 and 142 are installed on the first scrapers 130 and 140 so that heat applied to the first scrapers 130 and 140 is transferred to the light guide plate 1 that is in line contact with the teeth of the first scrapers 130 and 140. The light guide plate 1 is made soft by scraping 131 and 141, thereby increasing the precision of the pattern Px shape and minimizing wear of the first scraper 130 and 140. Meanwhile, a portion of the pattern Px is formed in the light guide plate 1 stepwise by the first scrapers 130 and 140 so that the teeth 131 and 141 of each of the first scrapers 130 and 140 are not in contact with the light guide plate 1 at once. By being in contact with each other, the heat transmitted to the light guide plate 1 by the heaters 132 and 142 is also dispersed to suppress thermal deformation of the light guide plate 1.

In the pattern forming step S15, the first scrapers 130 and 140 are inclined toward the light guide plate 1 so that the pattern Px is formed on the light guide plate 1 so that scrap such as debris generated by the formation of the pattern Px ( In addition to facilitating the discharge of the scrap, it is easy to form the correct pattern (Px).

4 is a flowchart illustrating a light guide plate manufacturing method according to a second exemplary embodiment of the present invention. As shown, a loading step (S21) for fixing the light guide plate (1) to the stage 110, a scraper transfer step (S24) for transferring a plurality of second scrapers (210, 220) to the stationary light guide plate (1), Each of the second scrapers 210 and 220 sequentially contacts and passes through the light guide plate 1, thereby forming a partial pattern Py on the light guide plate 1 step by step so that the entire pattern Py is formed. do.

In the loading step 21, the light guide plate 1 is loaded into the stage 110 so that the stage 110 is chucked with a vacuum or the light guide plate 1 is fixed to a predetermined position by clamping means or the like, as shown in FIG. 2D.

In order to increase the uniformity and accuracy of the pattern Py by matching the horizontality between the light guide plate 1 and the second scrapers 210 and 220, the horizontal level measuring step (S22) for measuring both horizontal levels of the fixed light guide plate 1 and And adjusting the inclination of the second scrapers 210 and 220 according to the measured horizontal degree of the light guide plate 1 to match the horizontal degrees of the light guide plate 1 and the second scrapers 210 and 220 (S23). can do.

The horizontal matching step S23 is the same as in the previous embodiment, but the horizontal measuring step S22 requires measuring the inclination of both sides of the fixed light guide plate 1 so that a pair of detection sensors (not shown) may be used. 1) It is possible to calculate the inclination of the light guide plate 1 by loading the two sides and measuring the height, respectively. When the measurement is completed, the detection sensor (not shown) is unloaded so as to deviate from the upper part of the light guide plate 1. C) does not cause contact or interference with the second scrapers (210, 220).

The scraper transfer step S24 divides the teeth 211 and 221 scraping each of the patterns Py in contact with the light guide plate 1 to form a plurality of second scrapers 210 and 220 for forming some patterns Py. Is converted to linear motion or transferred to the light guide plate 1 using the driving force of the hydraulic or pneumatic cylinder.

As shown in FIGS. 2E and 2F, the pattern forming step S25 sequentially passes each of the second scrapers 210 and 220 in line contact with the upper surface of the light guide plate 1 by the scraper transfer step S24. Some patterns Py are formed stepwise in (1) so that the entire pattern Py is formed.

The second scrapers 210 and 220 may have a shape for forming the tooth-shaped grooves 211 and 221 in the light guide plate 1, but the present invention is not limited thereto. It may have a shape.

In the pattern forming step S25, as in the previous embodiment, heat is applied to the second scrapers 210 and 220 to facilitate the formation of the pattern Py on the light guide plate 1 and to increase the accuracy and uniformity of the pattern Py. The heat is transferred to the light guide plate 1 by applying the heat, and the second scrapers 210 and 220 are inclined toward the light guide plate 1 to form a pattern Py on the light guide plate 1.

5 is a flowchart illustrating a light guide plate manufacturing method according to a third exemplary embodiment of the present invention. As shown, in the light guide plate manufacturing method according to the third embodiment of the present invention, the first and second patterns Px in the X- and Y-axis directions of the light guide plate 1 are successively performed by performing the first and second embodiments. As a method for forming Py, respectively, a loading step S31 for fixing the light guide plate 1 to the stage 110 and a light guide plate transfer step for transferring the stage 110 together with the light guide plate 1 in the X-axis direction ( S32 and the light guide plate 1 in each of the first scrapers 130 and 140 forming part of the first pattern Px by dividing the teeth 131 and 141 scraping each of the first pattern Px in contact with the light guide plate 1. The first pattern forming step (S35) and the first pattern forming step (S35) to form a part of the first pattern (Px) stepwise to complete the first pattern (Px) by sequentially contacting and passing through) A light guide plate stopping step S36 for stopping the light guide plate 1 on which the first pattern Px is formed by S35; By dividing the teeth 211 and 221 scraping each of the second patterns Py in contact with the plate 1, a plurality of second scrapers 210 and 220 forming part of the second pattern Py are directed toward the light guide plate 1. The scraper transfer step S37 for transferring in the Y-axis direction and each of the second scrapers 210 and 220 sequentially contact and pass through the light guide plate 1 to form a part of the second pattern Py in the light guide plate 1 in a stepwise manner. A second pattern forming step S38 for forming the entirety of the second pattern Py is included.

The light guide plate manufacturing method according to the third embodiment of the present invention is the same as the first embodiment between the light guide plate transfer step (S32) and the first pattern forming step (S35), the horizontal measurement step (S33) and the horizontal matching step ( S34) can be performed.

The first or second pattern forming steps S35 and S38 facilitate the formation of patterns Px and Py similarly to the pattern forming step S15 of the first embodiment and the pattern forming step S25 of the second embodiment. In order to increase the accuracy and uniformity of the patterns Px and Py, heat is transmitted to the light guide plate 1 by applying heat to the first and second scrapers 130, 140, 210 and 220, and the first and second scrapers 130, 140, 210 and 220 are transferred to the light guide plate 1. The patterns Px and Py may be formed in the light guide plate 1 by inclining toward the side of the light guide plate 1.

The light guide plate manufacturing method according to the fourth embodiment of the present invention has a loading step, a light guide plate transfer step, a first pattern formation step, a light guide plate stop step, a scraper transfer step, and a second pattern formation step like the third embodiment. And a horizontal degree measuring step and a horizontal level matching step which are performed between the light guide plate transfer step and the first pattern forming step. Unlike the third embodiment, the scraper transfer step is in contact with the light guide plate. (Py) the third scraper 410 having a tooth 411 for scraping each of them is transferred in the Y-axis direction toward the light guide plate 1, and in the second pattern forming step, the third scraper 410 is formed by the light guide plate 1 The entire second pattern Py is simultaneously formed on the light guide plate 1 by passing through in line contact with each other.

In the first or second pattern forming step according to the fourth embodiment, heat is transferred to the light guide plate 1 by applying heat to the first or third scrapers 130, 140, and 410, and the first or third scrapers 130, 140, and 410. Is inclined toward the light guide plate 1 to form first or second patterns Px and Py in the light guide plate 1.

6 is a perspective view showing a light guide plate manufacturing apparatus according to the present invention, Figure 7 is a block diagram showing a light guide plate manufacturing apparatus according to the present invention. As shown, the light guide plate manufacturing apparatus 100 according to the first embodiment of the present invention has a pattern on the light guide plate 1, specifically, a pattern Px in the X-axis direction which is a transfer direction of the light guide plate 1. A device for forming a light guide plate (1), a light guide plate (1) to which the light guide plate (1) is fixed, a light guide plate conveying means (120) for linearly moving the stage (110), and a light guide plate (1) A plurality of first scrapers 130 and 140 are formed to form some patterns Px by dividing the teeth 131 and 141 scraping each of the patterns Px in contact with (1).

The stage 110 may fix the light guide plate 1 by the clamping means provided on the upper surface, and preferably a vacuum hole through which a vacuum is supplied from an external vacuum supply unit to minimize damage during fixing of the light guide plate 1. The light guide plate 1 is chucked with a vacuum by forming a plurality on the upper surface thereof.

The light guide plate conveying means 120 is installed on the table 510 to transfer the light guide plate 1 by linearly moving the stage 110. For this purpose, a hydraulic or pneumatic cylinder may be used. To transfer the stage 110.

The light guide plate transfer means 120 is screwed to the feed motor 121 for generating a rotational force, the lead screw 122 that rotates by receiving the rotational force of the transfer motor 121, and the lead screw 122, and thus stage 110. It includes a ball screw 123 is installed on.

The transfer motor 121 is a motor capable of controlling the transfer amount, such as a servo motor or a step motor, and transmits the rotational force to the lead screw 122 by the belt 124.

The lead screw 122 has a screw formed on the outer circumferential surface thereof, and is installed such that the longitudinal direction thereof is parallel to the conveying direction of the light guide plate 1.

The ball screw 123 is fixed to the stage 110 and screwed to the lead screw 122 to thereby transfer the stage 110 by linear movement by the rotation of the lead screw 122.

The light guide plate transfer means 120 guides both sides of the stage 110 by a pair of guide members 125 installed in parallel with the lead screw 122 to guide the stage 110 and maintain parallelism. do.

The first scrapers 130 and 140 are installed to be orthogonal to the movement path of the light guide plate 1, and are arranged in parallel along the movement path, and each of the first scrapers 130 and 140 is in line contact with the light guide plate 1 which is transferred by the light guide plate transfer means 120. By dividing the teeth 131 and 141 scraping each of the patterns Px, the entire pattern Px is shared on the light guide plate 1. Therefore, the moving light guide plate 1 sequentially passes through the first scrapers 130 and 140 in contact with each of the first scrapers 130 and 140 to sequentially form some patterns Px to form the entire pattern Px.

The first scrapers 130 and 140 may be formed in a pair in the present embodiment, but the present invention is not limited thereto, and may be made of three or more. As shown in FIG. 8, the pattern Px of the entire light guide plate 1 is arranged. The teeth 131 and 141 may be formed to alternately scrape in order. That is, in the case where the first scrapers 130 and 140 are paired, each of the odd-numbered patterns Px such as the first, third, fifth, seventh, and ninth, and the even-numbered patterns such as the second, fourth, sixth, eighth, and tenth Tooth 131 and 141 forming Px are alternately formed.

As shown in FIG. 9, the first scrapers 160 and 170 according to another exemplary embodiment may not be a pattern Px of the entire light guide plate 1 but a part of the patterns Px, for example, 6, 7, 8, 9, and 10. Toothes 161 and 171 may be formed to alternately scrape the patterns Px such as the 11th, 11th, and 12th patterns in an arrangement order.

As shown in FIG. 10, the first scrapers 130 and 140 may be inclined toward the light guide plate 1, preferably inclined at an angle θ of 60 degrees to 75 degrees from the upper surface of the light guide plate 1. Thus, scraping of the light guide plate 1 is facilitated.

The first scrapers 130 and 140 preferably contact the surface of the light guide plate 1 with the ends 131a and 141a of the teeth 131 and 141, which are scraping portions, to form a straight or curved line. That is, when the tooth 131, 141 of the first scraper 130, 140 is formed into a triangle sawtooth, it is difficult to process the teeth 131, 141 so that the ends 131 a, 141 a are aligned so that the productivity of the scraper 130, 140 is reduced and manufactured. In addition to the increase in the unit cost, when the first scrapers 130 and 140 with the teeth 131 and 141 and the ends 131a and 141a are not aligned, unevenness is generated between the patterns Px (shown in FIG. 2). The uniformity of is lowered. Therefore, when the tooth ends 131a and 141a of the teeth 131 and 141 of the first scraper 130 and 140 are formed in a straight or curved line, the tooth ends 131a and 141a can be easily manufactured to align the first scrapers (131 and 141a). In addition to increasing the productivity of the 130,140, it is possible to reduce the manufacturing cost, and improve the quality by increasing the uniformity of the brightness.

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The first scrapers 130 and 140 receive heat to transfer heat to the light guide plate 1 so as to soften the light guide plate 1 so as to increase the precision and accuracy of the pattern Px (shown in FIG. 2). Is installed.

When the pattern Px is formed on the light guide plate 1, the uniformity between the patterns Px formed on the light guide plate 1 is increased by matching the horizontality between the light guide plate 1 and the first scrapers 130 and 140. Px) and the first and second lifting means (181,182) for adjusting the inclination of the first scraper (130,140), and the first and second detection sensors (151,152) installed on the movement path of the light guide plate (1) The controller 190 may control the first and second lifting means 181 and 182.

The first and second lifting means (181, 182) are installed at both ends of the first scraper (130, 140), respectively, to lift the rotational force of the lifting motors (181a, 182a), such as a servo motor or step motor, and the lifting motors (181a, 182a). Receiving means includes a switching means (181b, 182b) for converting the linear movement in the vertical direction, the switching means (181b, 182b) can be used a variety of linear motion means, for example on the rotary shaft of the lifting motor (181a, 182a) Coupling of the first scraper (130, 140) precisely, including an LM guide (liner motion guide) that is coupled to the ball screw and the ball screw that is rotated by the coupling coupled to the ball screw to convert the rotational force of the ball screw into linear movement by coupling Adjust the tilt

The first and second elevating means 181, 182 are installed on the elevating member 184 installed so as to elevate relatively quickly from the fixed frame 510 installed on the table 510 by the rapid elevating means 183.

Rapid lifting means 183 is a single lifting motor (183a) installed on the fixed frame 510, and switching means for lifting the lifting member 184 by switching the rotational force of the lifting motor (183a) in a linear motion (183b) The switch means 183b includes a lead screw (not shown) that is rotated by the driving of the elevating motor 183a and a ball screw (not shown) which is screwed thereto and installed on the elevating member 184.

The first and second detection sensors 151 and 152 are fixed to the sensor fixing members 153 respectively installed on both sides of the light guide plate 1 on the movement path, and each of the light emitting devices outputs a beam having a constant wavelength downward, and emits light. Receiving a beam that is output from the element is reflected by the light guide plate (1) consists of a light receiving element that detects the distance to the light guide plate 1 and outputs a detection signal to the controller 190.

The controller 190 receives the signals output from the first and second detection sensors 151 and 152 to calculate the inclination of the light guide plate 1, and according to the calculated inclination of the light guide plate 1, the first and second lifting means ( 181 and 182 are controlled to match the horizontal degree of the light guide plate 1 and the first scrapers 130 and 140.

Therefore, in the light guide plate manufacturing apparatus 100 according to the first embodiment, when the light guide plate 1 is loaded into the stage 110, the light guide plate transfer means 120 is performed while the stage 110 chucks the light guide plate 1 in a vacuum. To move in the X-axis direction.

At this time, the horizontal degree of the light guide plate 1 is sensed through the first and second detection sensors 151 and 152 and the first scraper is moved by the first and second lifting means 181 and 182 according to the horizontal degree of the light guide plate 1. By adjusting the inclination of the first and second scrapers 130 and 140 by adjusting the inclination of the first and second scrapers 130 and 140, the light guide plate 1 sequentially passes through the first scrapers 130 and 140, respectively. The upper surface is scraped by the teeth 131 and 141 to form a portion of the pattern Px step by step to complete the entire pattern Px. Accordingly, by matching the horizontal degree between the light guide plate 1 and the first scrapers 130 and 140, evenness of the light guide plate 1 is improved, the uniformity between the patterns Px formed by scraping on the light guide plate 1 is improved. Each of the scrapers 130 and 140 is formed by dividing a portion of the pattern Px in the light guide plate 1 stepwise to disperse the stress applied to the light guide plate 1 to prevent deformation of the light guide plate 1 as well as the accuracy of the pattern Px. To improve.

In addition, since the heat is supplied to the first scrapers 130 and 140 by the heaters 132 and 142, the heat is transferred to the light guide plate 1 in contact, thereby making the light guide plate 1 soft so that the precision and accuracy of the pattern Px. Increase In addition, a portion of the pattern Px is formed in the light guide plate 1 stepwise by the first scrapers 130 and 140 so that the teeth 131 and 141 of each of the first scrapers 130 and 140 are not in contact with the light guide plate 1 at once. The heat transmitted to the light guide plate 1 by the heaters 132 and 142 is also dispersed to suppress thermal deformation of the light guide plate 1, and the first scrapers 130 and 140 are inclined toward the light guide plate 1 so as to pattern the light guide plate 1. By forming (Px), it is easy to discharge scrap such as debris generated by the formation of the pattern (Px) and to facilitate the formation of the correct pattern (Px).

The light guide plate manufacturing apparatus 200 according to the second embodiment of the present invention will be described with reference to FIG. 6 configured to be used continuously with the first embodiment for convenience of description. The light guide plate manufacturing apparatus 200 according to the present exemplary embodiment forms a pattern on the light guide plate 1, specifically, a pattern Py (shown in FIG. 2) in the Y-axis direction which is a direction orthogonal to the transfer direction of the light guide plate 1. As a device, as shown in FIG. 6, a plurality of second scrapers 210 and 220 having a stage to which the light guide plate 1 is fixed and a tooth 211 and 221 which scrape each of the patterns Py in contact with the light guide plate 1. And a scraper conveying means 230 for arranging and transporting the second scrapers 210 and 220 side by side.

The stage is fixed to the light guide plate 1 loaded on the upper surface by clamping means or by chucking with vacuum. In FIG. 6 showing continuous use with the first embodiment, the stage for the movement of the light guide plate 1 is shown. Since 110 is provided, illustration of the stage for fixing the light guide plate 1 according to the present embodiment is omitted.

The second scrapers 210 and 220 respectively contact the light guide plate 1 to divide the teeth 211 and 221 scraping each of the patterns Py to form some patterns Py, respectively, and the first scrapers 130 and 140 of the first embodiment. Similarly, the teeth 211 and 221 may be formed to alternately scrape the entire light guide plate 1 or a portion of the pattern Py in an arrangement order, and to reduce the manufacturing cost and facilitate manufacturing, The ends of the 211 and 221 are formed in a straight line or a curved line, and the heaters 212 and 222 are installed, respectively, to transfer heat to the light guide plate 1 to soften the light guide plate 1, thereby improving the accuracy and accuracy of the pattern Py. The wear of the second scraper (210, 220) is reduced, and is inclined toward the light guide plate (1) to facilitate scraping.

The scraper conveying means 230 arranges the plurality of second scrapers 210 and 220 side by side and passes through the light guide plate 1 so that each of the second scrapers 210 and 220 sequentially contacts and passes through the light guide plate 1 to the light guide plate 1. Some patterns Py are formed stepwise to form the entire pattern Py.

The scraper conveying means 230 includes a feed motor 231 and a lead screw 232 fixed at both ends to a pair of fixed frames 510 installed on the table 510 to be rotated by the feed motor 231. The ball screw 233 is screwed to the lead screw 232, the ball screw 233 is linearly moved by the rotation of the lead screw 232, the ball screw 233 is fixed, and the transfer member (2, 220, 220) is installed 234 and a ball screw 233 and a conveying member 234 are provided for each of the second scrapers 210 and 220. In contrast, the ball screw 233 and the conveying member 234 are composed of a single conveying member. The second scrapers 210 and 220 may be installed together at intervals 234.

In addition, the light guide plate manufacturing apparatus 200 according to the second embodiment has the same level of horizontality between the light guide plate 1 and the second scrapers 210 and 220 when the pattern Py is formed on the light guide plate 1 as in the first embodiment. By increasing the uniformity between the patterns (Py) formed in the light guide plate 1, and to raise both sides of the second scraper (210,220) to form the correct pattern (Py) to adjust the inclination of the second scraper (210,220) Loading the third and fourth lifting means (241,242) and the upper side of the light guide plate (1) to sense the horizontality of both sides of the light guide plate (1) to output a detection signal and unloading to the outside of the light guide plate (1) after detection The third and fourth sensing sensors (not shown) and the signals output from the third and fourth sensing sensors, respectively, to match the horizontality of the light guide plate 1 and the second scrapers 210 and 220, respectively. The control unit (not shown) for controlling the fourth lifting means (241, 242) It should.

The third and fourth elevating means 241,242 according to the second embodiment are installed on the elevating member 244 which is installed to ascend and descend relatively quickly from the transfer member 234 by the rapid elevating means 243 as in the first embodiment. do.

Therefore, the light guide plate manufacturing apparatus 300 according to the second embodiment fixes the plurality of second scrapers 210 and 220 by the scraper transfer means 230 in a state in which the light guide plate 1 is fixed at a predetermined position to suppress vibration or movement. By moving in the Y-axis direction, a part of the pattern Py (shown in FIG. 2) is formed stepwise on the light guide plate 1 to complete the entire pattern Py.

In the light guide plate manufacturing apparatus 300 according to the third embodiment of the present invention, as shown in FIG. 6, the light guide plate 1 is provided with the first and second embodiments together in the first and second directions in the X and Y axis directions. The second patterns Px and Py are continuously formed, respectively, the stage 110 to which the light guide plate 1 is fixed, the light guide plate transfer means 120 for transferring the stage 110 in the X-axis direction, and the light guide plate ( A plurality of firsts arranged along a moving path of 1) and by forming a portion of the first pattern Px by dividing the teeth 131 and 141 scraping each of the first patterns Px in contact with the light guide plate 1. A plurality of second scrapers 210 and 220 forming a part of the second pattern Py by dividing the scrapers 130 and 140 and the teeth 211 and 221 scraping each of the second patterns Py in contact with the light guide plate 1. And a plurality of second scrapers 210 and 220 side by side in the Y-axis direction. It includes a scraper conveying means 230 for contacting and passing through the light guide plate (1).

10 is a perspective view illustrating a light guide plate manufacturing apparatus according to a fourth embodiment of the present invention. As shown, the light guide plate manufacturing apparatus 400 according to the fourth embodiment of the present invention, like the third embodiment, the first and second patterns Px and Py in the X-axis and Y-axis directions of the light guide plate 1. ) Are continuously formed, respectively, along the stage 110 to which the light guide plate 1 is fixed, the light guide plate transfer means 120 for transferring the stage 110 in the X-axis direction, and the movement path of the light guide plate 1. A plurality of first scrapers arranged to form a part of the first pattern Px by dividing the teeth 131 and 141 scraping each of the first patterns Px (shown in FIG. 2) in contact with the light guide plate 1. A third scraper 410 having a tooth 411 scraping each of the second pattern Py (shown in FIG. 2) in contact with the light guide plate 1, and a plurality of third scrapers 410 Y; And a scraper conveying means 230 for contacting and passing the light guide plate 1 in the axial direction. A third scraper (410) to form a full on the moving guide plate (1) in contact with the light guide plate 1 by the scraper transfer means 230 as made of an single second pattern (Py) at the same time, unlike.

In the light guide plate manufacturing apparatuses 300 and 400 according to the third and fourth embodiments, like the first and second embodiments, each of the first and second scrapers 130, 140, 210, and 220 may include a first pattern of the whole or part of the light guide plate 1. Tooth 131, 141, 211, 221 may be formed to alternately scrape Px in an arrangement order, and ends of the first to third scrapers 130, 140, 210, 220, and 410 may be formed in a straight or curved line, and the first to third scrapers 130, 140, 210, 220, and 410 may be formed. Heaters 132, 142, 212, 222, and 412 are installed in each of the light guide plates 1 and are inclined toward the light guide plate 1.

The light guide plate manufacturing apparatuses 300 and 400 according to the third and fourth embodiments are installed to elevate both sides of the first scrapers 130 and 140 like the first and second embodiments, respectively, to adjust the inclination of the first scrapers 130 and 140. First and second elevating means 181 and 182 and first and second sensing sensors 151 and 152 installed on a movement path of the light guide plate 1 to detect horizontality of both sides of the light guide plate 1 and output a detection signal; Control unit for controlling the first and second lifting means (181, 182) to receive the signals output from the first and second detection sensors (151, 152) to match the horizontal degree of the light guide plate (1) and the first scraper (130, 140) It may further include a 190, the third and fourth lifting means (241, 242, 242, 242, 242, 242, 220, 410 are installed to lift both sides, respectively, the third and fourth lifting means (241, 242 to adjust the inclination of the second or third scraper (210, 220, 410) ) And the light guide plate 1 positioned above the light guide plate 1. 3) and 3rd and 4th detection sensors (not shown) for sensing the horizontality of both sides and outputting a detection signal, and receiving the signals output from the 3rd and 4th detection sensors (not shown), and the light guide plate 1 and The controller 190 may further include a controller 190 for controlling the third and fourth lifting means 241, 242 to match the horizontality of the second or third scraper 210, 220, 410.

Therefore, the light guide plate manufacturing apparatuses 300 and 400 according to the third and fourth exemplary embodiments of the present invention chuck and fix the light guide plate 1 loaded into the stage 110 by vacuum, and then the X-axis by the light guide plate transfer means 130. The first scrapers 130 and 140 are sequentially in line contact with the upper surface of the light guide plate 1 by transferring the light guide plate 1 in the direction, so that the teeth 131 and 132 of the first scraper 130 and 140 are scraped to form a first surface on the upper surface of the light guide plate 1. A portion of the pattern Px is formed stepwise to complete the entire first pattern Px.

In the light guide plate 1 in which the first pattern Px is completed, the second scrapers 210 and 220 pass through linear contact in the Y-axis direction by the scraper transfer means 230 in the stopped state, or the third scraper 410 passes. Passes through in line contact with each other to form a part of the second pattern Py (shown in FIG. 2) stepwise on the light guide plate 1 to complete the entire second pattern Py or to form the entire second pattern Py at the same time. do.

The scraper used for manufacturing the light guide plate according to the present invention is to be formed by scraping a pattern on the light guide plate 1 as described in the light guide plate manufacturing method and manufacturing apparatus according to the present invention, as shown in FIGS. 8 and 9. Likewise, the light guide plate 1 is formed of a plurality, preferably a pair, which divides the teeth 131 and 141 scraping each of the patterns Px in contact with the light guide plate 1, and each of the patterns Px of all or part of the light guide plate 1 is formed. The teeth 131 and 141 are formed to alternately scrape in an arrangement order, and the ends 131a and 141a contacting the light guide plate 1 are straight or curved in the teeth 131 and 141.

According to a preferred embodiment of the present invention as described above, each of the scrapers to form a portion of the pattern (Px, Py) in the light guide plate 1 by dispersing the stress applied to the light guide plate (1) to deform the light guide plate (1) This improves the uniformity and accuracy of the pattern (Px, Py).

In addition, the pattern Px and Py formed by scraping on the light guide plate 1 even when the light guide plate 1 is inclined by measuring the horizontal degree of both sides of the light guide plate 1 to match the horizontal degree between the light guide plate 1 and the scraper. To improve the uniformity of the scraper, and to install the heater in the scraper so that the heat applied to the scraper is transferred to the light guide plate 1 which is in line contact with the scraper. It improves the precision of the shape, minimizes the wear of the scraper, and increases the replacement cycle of expensive scrapers, thereby improving productivity and reducing manufacturing costs.

In addition, a plurality of scrapers form a portion of the pattern Px and Py in the light guide plate 1 step by step so that the teeth of each scraper are sequentially contacted with the light guide plate 1 instead of contacting the light guide plate 1 at once. By dissipating the transferred heat, the thermal deformation of the light guide plate 1 is suppressed to improve the quality of the light guide plate 1.

In addition, the scraper is inclined toward the light guide plate 1 to facilitate the discharge of scrap such as debris generated when the patterns Px and Py are formed on the light guide plate 1, and the accurate patterns Px and Py. To allow the formation of

As described above, the light guide plate manufacturing method and manufacturing apparatus according to the present invention,

First, each scraper forms a light guide plate by dividing a part of the pattern stepwise to distribute the stress applied to the light guide plate to prevent deformation of the light guide plate, thereby improving the uniformity and accuracy of the pattern,

Second, by matching the horizontal degree between the light guide plate and the scraper to enable the formation of a uniform pattern on the light guide plate even if the light guide plate is tilted,

Third, it transmits heat to the light guide plate to soften the light guide plate to facilitate scraping and to form a precise pattern, and to minimize the wear of the scraper, thereby improving productivity and reducing manufacturing costs by increasing the replacement period of the scraper. and,

Fourth, a portion of the pattern is formed in the light guide plate stepwise by the scraper so that the teeth of each scraper are not in contact with the light guide plate at the same time but are sequentially contacted to thereby dissipate heat transferred to the light guide plate by the heater to prevent thermal deformation of the light guide plate. Improve quality,

Fifth, the scraper is inclined toward the light guide plate to facilitate the discharge of scraps such as debris when the pattern is formed on the light guide plate, and to form an accurate pattern.

Sixth, by forming the tooth end of the scraper in a straight or curved line, it is easy to manufacture the tooth end to align the tooth ends, thereby increasing the productivity of the scraper as well as lowering the manufacturing cost and preventing irregularities between patterns. It has the effect of improving the quality by increasing the uniformity of brightness at completion.

What has been described above is just one embodiment for carrying out the light guide plate manufacturing method and manufacturing apparatus according to the present invention, the present invention is not limited to the above-described embodiment, as claimed in the following claims Without departing from the gist of the present invention, those skilled in the art to which the present invention pertains to the technical spirit of the present invention to the extent that various modifications can be made.

Claims (37)

In the method of forming a pattern on a light guide plate, A loading step of fixing the light guide plate to a stage; A light guide plate transfer step of linearly moving the stage with the light guide plate; A pattern for forming a partial pattern in the light guide plate by forming a partial pattern on the light guide plate by sequentially contacting and passing the light guide plate to each of the first scrapers that form a partial pattern by dividing a tooth for scraping each of the patterns in contact with the light guide plate. Formation stage Light guide plate manufacturing method comprising a. The method of claim 1, A horizontal degree measuring step of measuring horizontal degrees of both sides of the light guide plate transferred by the light guide plate transferring step; A horizontal degree matching step of matching the horizontal degree of the light guide plate and the first scraper by adjusting the inclination of the first scraper according to the horizontal degree of the light guide plate measured by the horizontal degree measuring step. Light guide plate manufacturing method further comprising. The method of claim 1, The pattern forming step, Heat is transferred to the light guide plate by applying heat to the first scraper Light guide plate manufacturing method characterized in that. The method according to claim 1 or 3, The pattern forming step Forming a pattern on the light guide plate by inclining the first scraper toward the light guide plate side Light guide plate manufacturing method characterized in that. In the method of forming a pattern on a light guide plate, A loading step of fixing the light guide plate to a stage; A scraper transfer step of transferring a plurality of second scrapers for forming a partial pattern to the light guide plate by dividing a tooth for scraping each of the patterns in contact with the light guide plate; A pattern forming step in which each of the second scrapers sequentially contacts and passes through the light guide plate so that a partial pattern is formed in the light guide plate step by step so that the entire pattern is formed. Light guide plate manufacturing method comprising a. The method of claim 5, wherein A horizontal level measuring step of measuring horizontal levels of both sides of the light guide plate fixed to the stage by the loading step; A horizontal degree matching step of matching the horizontal degree of the light guide plate and the second scraper by adjusting the inclination of the second scraper according to the horizontal degree of the light guide plate measured by the horizontal degree measuring step. Light guide plate manufacturing method further comprising. The method of claim 5, wherein The pattern forming step, Heat is transferred to the light guide plate by applying heat to the second scraper Light guide plate manufacturing method characterized in that. The method according to claim 5 or 7, The pattern forming step Forming a pattern on the light guide plate by inclining the second scraper toward the light guide plate side Light guide plate manufacturing method characterized in that. In the method for forming the first and second patterns in the X- and Y-axis directions, respectively, in the light guide plate, A loading step of fixing the light guide plate to a stage; A light guide plate transfer step of transferring the stage along the light guide plate in an X-axis direction; By dividing the tooth scraping each of the first patterns in contact with the light guide plate, the first light guide plate is sequentially contacted and passed through each of the first scrapers to form a part of the first pattern, thereby forming a part of the first pattern in the light guide plate step by step. A first pattern forming step of completing the entire first pattern; A light guide plate stopping step of stopping the light guide plate on which the first pattern is formed by the first pattern forming step; A scraper transfer step of transferring a plurality of second scrapers in a Y-axis direction toward the light guide plate by dividing a tooth for scraping each of the second patterns in contact with the light guide plate; A second pattern forming step in which each of the second scrapers sequentially contacts and passes through the light guide plate so that a part of the second pattern is formed in the light guide plate step by step so that the entire second pattern is formed; Light guide plate manufacturing method comprising a. The method of claim 9, A horizontal degree measuring step of measuring horizontal degrees of both sides of the light guide plate transferred by the light guide plate transferring step; A horizontal degree matching step of matching the horizontal degree of the light guide plate and the first scraper by adjusting the inclination of the first scraper according to the horizontal degree of the light guide plate measured by the horizontal degree measuring step. Light guide plate manufacturing method further comprising. The method of claim 9, The first or second pattern forming step, Heat is transferred to the light guide plate by applying heat to the first or second scraper Light guide plate manufacturing method characterized in that. The method according to claim 9 or 11, The first or second pattern forming step Forming the first or second pattern on the light guide plate by inclining the first or second scraper toward the light guide plate side Light guide plate manufacturing method characterized in that. In the method for forming the first and second patterns in the X- and Y-axis directions, respectively, in the light guide plate, A loading step of fixing the light guide plate to a stage; A light guide plate transfer step of transferring the stage along the light guide plate in an X-axis direction; By dividing the tooth scraping each of the patterns in contact with the light guide plate, the first light guide plate is sequentially contacted and passed through each of the first scrapers forming a part of the first pattern, thereby forming a part of the first pattern in the light guide plate step by step. A first pattern forming step of completing the entire pattern, A light guide plate stopping step of stopping the light guide plate on which the first pattern is formed by the first pattern forming step; A scraper transfer step of transferring a third scraper having a tooth in contact with the light guide plate to scrap each of the second patterns toward the light guide plate in the Y-axis direction; A second pattern forming step of allowing the third scraper to contact and pass through the light guide plate to simultaneously form the entire second pattern on the light guide plate; Light guide plate manufacturing method comprising a. The method of claim 13, A horizontal degree measuring step of measuring horizontal degrees of both sides of the light guide plate transferred by the light guide plate transferring step; A horizontal degree matching step of matching the horizontal degree of the light guide plate and the first scraper by adjusting the inclination of the first scraper according to the horizontal degree of the light guide plate measured by the horizontal degree measuring step. Light guide plate manufacturing method further comprising. The method of claim 13, The first or second pattern forming step, Heat is transferred to the light guide plate by applying heat to the first or third scraper Light guide plate manufacturing method characterized in that. The method according to claim 13 or 15, The first or second pattern forming step Forming the first or second pattern on the light guide plate by inclining the first or third scraper toward the light guide plate side Light guide plate manufacturing method characterized in that. In the apparatus for forming a pattern on the light guide plate, A stage to which the light guide plate is fixed; Light guide plate transfer means for transferring the light guide plate by linearly moving the stage; A plurality of first scrapers arranged along a moving path of the light guide plate, the first scrapers each forming a partial pattern by dividing a tooth contacting the light guide plate to scrap each of the patterns; The light guide plate manufacturing apparatus of the light guide plate to sequentially contact each of the first scraper to pass through to form a partial pattern to form a whole pattern. In the apparatus for forming a pattern on the light guide plate, A stage to which the light guide plate is fixed; A plurality of second scrapers each forming a partial pattern by dividing a tooth for scraping each of the patterns in contact with the light guide plate; And a scraper conveying means for arranging the plurality of second scrapers side by side to pass through the light guide plate. And each of the second scrapers sequentially contacts and passes through the light guide plate, thereby forming a partial pattern on the light guide plate in a stepwise manner so that the entire pattern is formed. In the apparatus for forming the first and second patterns in the light guide plate in the X-axis and Y-axis directions, respectively, A stage to which the light guide plate is fixed; Light guide plate transfer means for transferring the light guide plate by transferring the stage in the X-axis direction; A plurality of first scrapers arranged along a moving path of the light guide plate, the first scrapers each forming a part of the first pattern by dividing a tooth contacting the light guide plate to scrap each of the first patterns; A plurality of second scrapers each forming a part of the second pattern by dividing a tooth for scraping each of the second patterns in contact with the light guide plate; Scraper conveying means for arranging the plurality of second scrapers side by side to pass through the light guide plate in the Y-axis direction, The light guide plate sequentially contacts and passes each of the first scrapers, thereby forming a part of the first pattern stepwise to form the entire first pattern, and the second pattern is sequentially contacted and passed through the second light guide plate to the stationary light guide plate. The light guide plate manufacturing apparatus which forms a part by step and forms the whole 2nd pattern. In the apparatus for forming the first and second patterns in the light guide plate in the X-axis and Y-axis directions, respectively, A stage to which the light guide plate is fixed; Light guide plate transfer means for transferring the light guide plate by transferring the stage in the X-axis direction; A plurality of first scrapers arranged along a moving path of the light guide plate, the first scrapers each forming a part of the first pattern by dividing a tooth contacting the light guide plate to scrap each of the first patterns; A third scraper having a tooth in contact with the light guide plate to scrap each of the second patterns; And scraper conveying means for passing the plurality of third scrapers in contact with the light guide plate in a Y-axis direction, The light guide plate sequentially contacts and passes through each of the first scrapers, thereby forming a part of the first pattern stepwise to form the entire first pattern, and forming the entire second pattern by passing the third scraper through the stationary light guide plate. Light guide plate manufacturing apparatus. delete The method according to any one of claims 17, 19 or 20, The first scraper is, The ends of the tooth formed in a straight or curved line Light guide plate manufacturing apparatus characterized in that. The method according to any one of claims 17, 19 or 20, The first scraper is, The heater is installed to transfer heat to the light guide plate Light guide plate manufacturing apparatus characterized in that. The method according to any one of claims 17, 19 or 20, The first scraper is, Installed to be inclined in the direction toward the light guide plate Light guide plate manufacturing apparatus characterized in that. delete delete The method of claim 18 or 19, The second scraper is, The ends of the tooth formed in a straight or curved line Light guide plate manufacturing apparatus characterized in that. The method of claim 18 or 19, The second scraper is, The heater is installed to transfer heat to the light guide plate Light guide plate manufacturing apparatus characterized in that. The method of claim 18 or 19, The second scraper is, Installed to be inclined in the direction toward the light guide plate Light guide plate manufacturing apparatus characterized in that. delete The method of claim 20, The third scraper is, The ends of the tooth formed in a straight or curved line Light guide plate manufacturing apparatus characterized in that. The method of claim 20, The third scraper is, The heater is installed to transfer heat to the light guide plate Light guide plate manufacturing apparatus characterized in that. The method of claim 20, The third scraper is, Installed to be inclined in the direction toward the light guide plate Light guide plate manufacturing apparatus characterized in that. delete delete delete delete

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