TW201219324A - Method to reduce adhered glass from LCD substrate - Google Patents

Abstract

A method of making a sheet of glass comprises the steps of machining a target area of a strip of glass, wherein glass fragments are formed and detach from the strip of glass, and applying a slip agent on the glass fragments. Moreover, an apparatus for making a sheet of glass includes a machining tool including an edge configured to machine a target area of a strip of glass such that glass fragments are formed and detach from the strip of glass; and an emitting device configured to apply a slip agent on the glass fragments.

Description

201219324 VI. Description of the invention: [Priority of this application]

This application is based on the priority of the patent law claim m + I US Provisional Application No. 61/388141. The temporary owner also filed an application on September 30, 2010. 'This application relies on its order. And the text is hereby incorporated by reference in its entirety. TECHNICAL FIELD OF THE INVENTION The method of manufacturing a glass sheet and the reduction of defects in the manufacture of a sheet of the present invention relate to the preparation, and in particular, to a method and apparatus for use in a slope. [Prior Art] The manufacture of glass sheets involves various processes, Α # in the process of shai, by applying force or friction (such as cutting, grinding, beveling, polishing) Method) to give the glass sheet a desired shape. Such processes produce glass & corrugated fragments or fragments that may adhere to the glass sheet in the solidified crucible, thereby causing defective glass sheets. Therefore, Lingsheng sounds a method or device to reduce the frequency of defective products. SUMMARY OF THE INVENTION It should be understood that the same aspect of the invention (or the disclosure of several aspects of the invention herein)

3 S 201219324 Cannot be overlapped with each other 'Therefore, one aspect of the pattern may fall into the life of another aspect, and vice versa. The various embodiments are described by way of example, and the embodiments may further comprise one or more specific embodiments. It should be understood that the embodiments may (or may not) overlap each other. Thus, a portion of one embodiment (or a particular embodiment thereof) may (or may not) fall within the limits of another embodiment (or a particular embodiment thereof) and vice versa. A first aspect of the invention relates to a method of making a glass sheet, the method comprising the steps of: a. machining a target area of a strip glass, wherein a plurality of glass fragments are formed and detached from the glass strip And b. applying a slip agent to the glass segments. In some embodiments of the first aspect of the invention, the step of cutting cuts through a glass ribbon (ribb〇n 〇f g丨ass) made by a fused extrusion process to form the glass sheet. In some embodiments of the first aspect of the invention, the method further comprises the step of varying the target area of the glass strip during the step of cutting. In certain embodiments of the first aspect of the present invention, the slip agent is directed toward the target region of the glass ribbon and the proximity of the target region. 某 of the first aspect of the present invention In some embodiments, the step of applying the slip agent is performed by spraying. In certain embodiments of the first aspect of the invention, the applying the slip agent

The steps of 4 S 201219324 are performed simultaneously with the cutting step. In some embodiments of the first aspect of the present invention, the step of cutting modifies the contour of the peripheral edge of the glass strip. In some embodiments of the first aspect of the invention, a fluid for removing a substantial portion of the glass segments from the glass strip is applied to the target region and the fluid includes the slip agent. In certain embodiments of the first aspect of the invention, the fluid cools the glass strip. In some embodiments of the first aspect of the invention, the method further comprises the step of removing the slip agent from the target area of the glass strip and the adjacent area of the target area. A second aspect of the invention relates to an apparatus for making a glass sheet, the apparatus comprising: (I) a cutting tool comprising an edge disposed to cut a target area of the glass strip such that the glass strip is formed and detached from the glass strip a glass segment; and (II) a launching device for applying a slip agent to the glass segments. In some embodiments of the second aspect of the invention, the launching device is oriented toward the target area of the glass strip and adjacent regions of the target area. In some embodiments of the second aspect of the invention, the tool is configured to move around the glass π such that the target area of the glass strip changes, and the launching device is configured to move toward the target area and the target area The adjacent zone is oriented. 201219324 In some embodiments of the second aspect of the invention, when the tool is moved, the 5H launching device is configured to leave a layer of the slip agent in the target area and the adjacent area of the target area. In some embodiments of the second aspect of the invention, the cutting tool includes a wheel that is configured to rotate. In certain embodiments of the second aspect of the invention, the cutting edge is positioned to cut a peripheral edge of the glass sheet. In some embodiments of the second aspect of the invention, the edge of the cutting tool is positioned to cut the face of the glass ribbon. The one or more of the following examples and/or aspects of the present month have the following one or more advantages. First, the person who believes that the application of the slip agent is applied to the glass particles '., and the member also reduces the glass during the finishing process. The number of glass particles attached to the glass surface. Secondly, the applicant further believes that even if the particles are still attached to the glazed table, the + + + ... surface is attached due to the presence and application of the slipping agent.

The effort is reduced and thus stretched; the cleaning of the A and the cleaning of the cleaning facilities and steps are easier and more efficient. The flute-I' can conveniently perform the application of a sputum agent in the nozzle, which is in the glass surface of the glass processing process, thus making it easy to process the glass. T is updated to the existing existing glass bottle from the Dan set point will be proposed in the subsequent details 'and familiar with the technology # will be able to explain and apply for patent scope (and the figure = written understanding of the invention - part of the characteristics And the advantages of "the invention is easy to understand the aforementioned husband & ..., and the detailed descriptions that follow are only mentioned

S 201219324 is an example of the invention, and _ invites to understand the nature and characteristics of the invention as claimed. An overview or a box of "involving the person's drawing to provide a copy of the book" is incorporated into the specification and forms part of the specification. [Embodiment] An example is described starting from the point of δ month reference display example embodiment. As long as the same 70 symbols refer to the same or similar forms to implement a plurality of aspects, and the embodiments presented herein. The accompanying schema will now be more comprehensive, using the components of the phase in all schemas. However, many thin glass sheets which should not be interpreted as limiting high quality can be produced by a fusion process such as overflow down. Fig. 1 shows an exemplary embodiment of a glass manufacturing system (or indexing machine) 1 'detailed'. The system is used in a solvating process for manufacturing a glass sheet 117. The glass manufacturing system (8) can include a solvating vessel 1103, a clarification vessel 105, a mixing vessel 1 〇 7 (eg, a stirred chamber as depicted), a delivery vessel 109 (eg, a trough shown) to form a sump 111 (eg, 'The isostatic pressure tube (1S〇Plpe) shown, the pull roller assembly 113, and the traveling anvil machine 115 (ΤΑΜ) 〇5 熔融 熔融 molten container 1〇3 is introduced into the glass batch material as indicated by arrow 119 and The material is melted to form a molten glass 121. The clarification vessel 1〇5 has a high temperature treatment zone that receives the glazed glass 121 from the fused container 201219324 103 and removes bubbles from the glazing glass 121 in this zone. The clarification vessel 105 is connected to the /tti combiner 1 through the clarifier to the mixing chamber connection pipe 123. Thereafter, the mixing container 1 〇 7 is connected to the delivery container 1〇9 through the stirring chamber to the tank connection pipe 125. The delivery container ι 9 delivers the molten glass 121 through the downcomer 127 to the inlet 129 and enters the formation of the valley 111. The forming container 111 includes an opening 131 that receives the molten glass 121, which flows into the sump 133 and then overflows and flows down the sides forming the container η, after which the molten glass is known as the root 135 Fuse together. The root portion 135 is where the two sides meet together, and where the overflow walls of the two glazing glasses i 21 overlap. The molten glass is then rewound downwardly by the pull roller assembly 113 to form a glass ribbon 137. Thereafter, the crucible 115 is scribed with the woven glass ribbon 137 which is then separated into individual glass sheets 117. The glass sheet 117 may undergo further cutting processes, such as additional cutting, scratching, beveling, glazing, or the like, which may result in a glass sheet • k or debris 'glass fragments or fragments may be attached or attached to Plates, such fragments or fragments will be attached to the plate due to Van der Waals force. glass

The sheets may need to meet precise dimensional requirements (such as for use with LCD panels), and the attachment of such glass segments may result in defective products. Referring now to Figure 2, the glass segment 201 produced by the first cutting process is shown. The figure shows a first embodiment of a cutting tool 2 〇 3 which is part of a glass manufacturing system 101 and, in one example, the cutting tool 2 〇 3 may be a first wheel that rotates about an axis A 201219324 and including the sharp edge 'edge 2〇7' The sharp edge 207 acts as a knife strip 209 in which the 'axis A parallel can be arranged vertically, horizontally or at an angle. Although the iron-and-brain 2 diagram shows that the cutting tool 203 is applied as a rotary circular blade a 』 knife-cut state, the blade can either 疋 a polygon (for example, a rectangle) or A can not rotate. The cutting tool 203 can be mounted such that the position 1" of the axis A is moved to each position, and the sharp edge 207 can be brought to the sill/, the sloping strip 2 〇 9 contact or "open" from the contact for use The surface is cut across the surface of the glass strip 2〇9. The term "bar" is used to cover the glass in the stage of making the valley, and the term can refer to a continuous glass ribbon 137, individual individual glass sheets 117 ( The glass sheet has been cut from the glass ribbon 137) to remove the glass in the form of the other phase of the manufacturing process. Therefore, in the drawing of Fig. 2, the cutting tool 2〇3 may be, for example, a part of the crucible 115, which is cut at the bottom of the traction of the machine by the 2############ Through the glass ribbon 137; or the cutter January 203 can be made in the vertical bead scribed area at the bottom of the drawing (in the figure, Fugan, 4, & suspicion, mouth Υ 不), and cut glass ▼ The bead section of 137 (the puller Han knows that from η, ^丨知子组件 113 may have left marks on this section). The sharp edge 207 of the first wheel 2 〇 5 is in contact on the glass strip 209 and the cutting target region 211' is formed there and falls off the glass segment 213. Figure 2 does not draw the garments on a scale and can depict the dimensions of some of the glass segments 213 in a large manner. See, "θ > 曰 & field 211 means that the glass strip 2〇9 is subjected to the cutting tool 203 to process the area of the seven 7*, 丨& wide u cut and may be a glass strip 2〇9 The portion of the cutting tool 203 is contacted. With the same media, the address is dry u | knife 1〗, glass segment 213 can be b (or not) for similar sizes. The glass manufacturing system m can include a first launching device s 2i5 in fluid communication with a container 219 that supplies the slip agent 217, as shown in the Desc. For example, the first transmitting device 215 can lick the nozzle. The first-fire mis is oriented toward the target area 211 and the spray is submerged, and the sodium (21) is taken from the 21*7 to the target area 211 and the adjacent area of the area, however, the 'first launching device 215 can be configured in various ways or Awkward. Furthermore, a plurality of first launchers i 215 can be used and, for example, another first first splitting 21s can be placed on the opposite end of the first wheel 2〇5 (Fig. 2) or in the glass strip 2〇9 The opposite surface uses a second-emitting device 215 (Fig. 3). It is desirable that the first launching device 215 is coated (by spray coating) with the slipping agent 2! 7 such as the exterior of the glass segment 2 jade 3 such that the barrier layer 223 of the slip agent 217 is formed between the glass segment 213 and the glass strip 209. boundary. The barrier layer 223 can be made of spaced apart droplets 22:L of the slipping agent' as shown in Fig. 2, in which the barrier layer 223 is discontinuous and there is a gap between the droplets 221. Alternatively, barrier layer 223 can be a continuous layer of slip agent 217. The presence of the barrier layer 223 prevents the glass segment 213 from becoming attached to the glass strip 2〇9. Applying the slip agent 217 to the target region 211 and the vicinity of the target region 2ι1 also leaves a deposition layer 225 of the slip agent 217 overlying the glass strip 2〇9, which is different from the barrier formed on the exterior of the glass segment 213. Barrier layer 223. Although the deposited layer 2M is shown as a continuous layer, the deposited layer 225 may be formed of droplets of the slipping agent, similar to the barrier layer 223. The spray coating is left; 3' of the 217' layer of 217 is applied over the glass strip 2 〇9, and the glass strip 209 can be cleaned using, for example, water and detergent to remove the slip agent 217 at a later stage of manufacture. Because the thinner deposited layer 225 is easier

S 10 201219324 The cleaning phase is removed' so the first launching device 215 can be selected by taking into account the ability of the first launching device 2i5 to form a thin redundant layer. For example, the deposited layer 225 may have a thickness of nanometer or the like, such as below μ nanometer. The first launching device 215 is positioned around the target area 21 such that the slip agent 217 can be applied to a plurality of glass segments 213 at the target area 211, such as adjacent zones. The position and orientation of the first shot ... Μ can be determined based on factors such as the distance that is reached upon spraying, the angle of expansion of the slip agent 217 during spraying, and the like. The slip agent 217 can be applied to the glass segment 213 when the glass segment 213 is detached and/or the glass segment 213 has been detached. Furthermore, when the glass segment 213 is completely detached from the glass strip 2〇9, the broken glass segment may undergo various random movements. When the glass segment 213 is moved away from the glass strip 209, the glass segment 213 may undergo some rotation in addition to being displaced from the glass strip 2〇9. The glass "213" such rotation and other random movements can help coat a larger portion of the outer surface of the glass segment 213 and can increase the barrier layer 223 that provides the slip agent 217 to be suitable between the glass strip 209 and the glass segment 213. The possibility of a boundary. The composition of the slip agent of any of the embodiments of the present invention may be determined according to factors such as the ability to protect the glass strip 2 to prevent scratching, the ability to be easily removed during the washing process, and the like, And the slipping agent can be formed, for example, by a long chain fatty acid ester or a long chain fatty amine. The cutting tool 203 can be moved around the glass strip 209 such that the target area 211 (the cutting tool 203 operates on the target area) changes. The cutting tool 203 can be gradually moved to the left of the second figure to cut through the glass strip 2〇9 as indicated by arrow 201219324 227. The first launching device 2i5 can be shocked to move with the cutting tool 203, so that - the transmitting device 2 thus follows the target area 2U (the glass segment 2U is generated from the target area) and the target area 211 adjacent to the zone. This can be done, for example, by installing the first transmitting device 215 The dicing tool 203* is completed as part of the same subsystem of the upper glazing system 101, but may be accomplished using other means known in the art, although Figure 2 shows the first launch during the movement. The device 215 is mounted on the left side of the first wheel 2〇5 or the leading cutting tool, but the first launching device 215 can be positioned at various positions around the cutting tool 2〇3, and one or more can be set as shown. A launching device 215. At the same time as the cutting tool 203 operates (during the operation, the glass segment 213 is generated), the first launching device 215 can begin to spray the slipping agent 217. Or, even if there is some delay at the beginning of the operation However, as long as the spraying of the slip agent 217 can cover a large number of glass segments 213, the first launching device 215 can start spraying the slipping agent 217 after the cutting tool 2〇3 has started to operate. Referring now to Figure 3, the figure shows A second cutting process 301 for creating a glass segment 213 and a second embodiment of the cutting tool 303. The cutting tool 303 can be a second wheel 305 that rotates about an axis b that is perpendicular to the being cut The strip of glass 209. The second wheel 3〇5 may be made of an abrasive material and may include a grinding edge 307 for grinding, beveling or polishing the edges of the glass strip 2〇9. For example, as shown in Fig. 3. As shown in the figure, the grinding edge 3〇7 may include a peripherally extending groove 12 201219324 309 and a V-shaped section 'so that the peripheral edge 3 ι of the broken strip 2〇9 can be accommodated in the groove 3〇9. However, the groove The cross-sectional shape of the 3 〇 9 may be exemplified by the example, and the groove 3 〇 9 may be a concave surface or a convex surface. Alternatively, the grinding edge 3 〇 7 of the first wheel 305 may be simply a flat surface. Further, there may be a plurality of methods of arranging the abrasive edges 307 having a given cross-sectional shape around the glass strip 209, and the abrasive edges 307 having different shapes may contact the peripheral edges 311 in different ways. Cutting similar to the glass strip 2〇9 in Fig. 2' Fig. 3 can change the appearance of the peripheral edge 311 of the glass strip 209 while creating a glass segment 213 that will adhere to the glass strip 209 during the process, in this embodiment. The first launching device 215 in the figure is in a vertical configuration 1 around the glass strip 2〇9 and the 'first-emitting device 21S can be oriented in an alternative manner, and the target area 317 for spraying the slipping agent 217 can be, for example, contact grinding. The corner of the peripheral edge 311 of the edge 307. Different types of cutting processes can produce different numbers of glass segments 3 such as 'relative to the cutting process, the process of changing the outer edge 313 of the peripheral edge 3 ι may need to remove a large number of glass pieces from the glass 胄 2 〇 9 in Figure 3 In the cutting process, the second round 3〇5 can cut the target area 317 of the glass strip 9 for an extended period of time, however, in the second: cutting process, the first round 2〇5 is spent in each target area 2 ιι The amount of use can be much shorter. In these examples, the second launching device i 327 can: remove a large number of glass segments 213 away from the glass crucible 2 (10), the first launch device 215 'the second launch device 327 can supply a large amount of fluid 319 . The fluid 319 can be composed of the slip agent 217 alone.

13 S 201219324 Alternatively, it may consist of a mixture of slipping "17 with one or more additional substances. This can be accomplished by supplying the target zone 317 with a flow of fluid 319 at a greater volumetric flow rate, and can be applied by smear, injection, pour, or the like. Thus, by the flow of the fluid 319 moving over the target area 317, a substantial portion of the glass fragments 213 can be removed from the glass strip (10). Although the third transmitting device 1 215 and the second transmitting device 327 are shown in the third state, the second transmitting device alone can be provided without providing the first transmitting device 215. Depending on the type of emitter applied, it may be coated only on the glass segment 213, or a sufficient amount of fluid 3i9 may be removed, which may remove a substantial portion of the glass segment 213 and leave it in the glass strip. The glass segment 213 on 209 is coated with a barrier layer 321 (formed by droplets 323 of the slip agent 217). Fluid 319 can provide additional functionality to cool the glass strip 2〇9 (caused by prolonged cutting) that may have become hot around the target area 317. Similar to Fig. 2, the deposition layer 325 formed by the fluid 319 and/or the slip agent 217 can be cleaned from the glass strip 209 using a washing process - similar to the cutting tool 203 of Fig. 2, the cutting tool 3〇3 can be moved around the glass strip 209 Even if it is not in a way. For example, the cutting tool 303 can be moved along the peripheral edge 311 of the glass strip 209 to evenly cut the peripheral edge 311 of the glass strip 209. Alternatively, the glass strip 209 can be moved while the cutting tool 303 remains static. It will be apparent to those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the claimed invention. 201219324 [Simplified Description of the Drawings] When referring to the above detailed description and referring to the accompanying drawings, the aspects and other aspects are better understood, and in the drawings: FIG. 1 is a schematic view of a glass manufacturing system; Figure 2 is a side elevational view of an exemplary embodiment of a first apparatus for reducing the attachment of glass segments from a glass strip; and Figure 3 is a side view of an exemplary embodiment of a second apparatus for reducing Attached glass fragments from the glass strip. [Major component symbol description] Glass manufacturing system 103 Melting container 105 clarification container 107 Mixing container 109 Delivery container 111 Forming container 113 Pulling roller assembly 11 5 Traveling anvil machine 117 Glass sheet 119 Arrow. 12 1 Fused glass 123 clarifier to Stirring chamber connecting pipe 125 feeding chamber to tank connecting pipe 127 downflow pipe 129 inlet 131 opening 133 sump 135 root 137 glass belt 201 glass segment 2 〇 3 cutting tool 205 苐 one round

15 S 201219324 207 Sharp edge 303 Cutting tool 209 Glass strip 305 First wheel 211 g Marking area 307 Grinding edge 213 Glass segment 309 Groove 215 _ — Launcher 3 11 Surrounding edge 217 Slip agent 3 13 Shape 219 Container 3 17 Target Field 221 Drop 3 19 Fluid 223 Barrier layer 321 Barrier layer 225 Deposit layer 323 Droplet 227 Arrow 325 Deposited layer 301 Second cutting process 327 ___~ Launcher

S 16

Claims (1)

201219324 VII. Patent application scope: 1. A method for manufacturing a glass sheet, the method comprising the following steps: a. machining - a target area of a strip of glass, wherein the glass strip is formed and detached from the glass strip a plurality of glass segments; and b. applying a slip agent to the glass segments. 2. A method according to the present invention, wherein the step of cutting cuts through a glass ribbon (?) produced by a fusion-splicing process to form the glass sheet. For example, the method of claim 1 or claim 2 wherein the slip agent is directed toward the target area of the ray strip and the _ adjacent proximity of the target area. The method steps of applying the slipping agent such as the requester or claim 2 are performed by spraying. 5. The request item 1 or the request item step is the method of the step 2 of the cutting, wherein the step of applying the slip agent is performed simultaneously. V/· Item 1 or Request Item 2 & + + removes the glass sheets in which a fluid from a substantial portion of the strip is applied to the target area of the target S 17 201219324, and The fluid includes the slip agent. 7. The method of claim 6, wherein the fluid cools the glass strip. 8. The method of claim 1 or claim 2, the method further comprising the step of removing the slip agent from the target area of the glass strip and the adjacent area of the target area. 18