KR20130109399A - Apparatus and method for manufacturing a window glass - Google Patents

Abstract

PURPOSE: A window glass manufacturing apparatus for a portable electronic device is provided to automatically peel a sticker type film without using plural processes, and to attach the 80-150 um sticker type film for protecting glass when sand etching at one go. CONSTITUTION: A window glass manufacturing apparatus (1000) for a portable electronic device includes an attaching unit (100) of a protective sticker for etching window glass, and a peeling unit (200) of the protective sticker for the etching window glass. The attaching unit automatically attaches the protective sticker for the etching window glass corresponding to a pattern of the window glass on a portable electronic device to sheet glass. The peeling unit removes the protective sticker from the window glass. The thickness of the protective sticker is 80-150 um. The peeling unit peels the protective sticker using the tension of a roll-to-roll apparatus. The protective sticker includes a physical property changing device (250). [Reference numerals] (AA,FF) Cassette or stack; (BB,DD) Automatic; (CC,EE) Semiautomatic

Description

Apparatus and method for manufacturing window glass of a portable electronic device {APPARATUS AND METHOD FOR MANUFACTURING A WINDOW GLASS}

The present invention relates to a window glass manufacturing apparatus and a manufacturing method of a portable electronic device, and more particularly, to attach a film of a sticker type of 80 ~ 150um at a time, which can fully protect the glass during sand etching, without going through several steps The present invention relates to a window glass manufacturing apparatus and a manufacturing method of a portable electronic device capable of automatically peeling off a sticker type film.

In general, portable electronic devices collectively include mobile phones, MP3P players, portable multimedia players, personal digital assistants (PDAs), vehicle navigation, and the like.

Such portable electronic devices are essentially provided with display windows. Conventionally, synthetic resin materials such as acrylic, polycarbonate (PC), and polymethyl methacrylate (PMMA) are used as such display windows, but synthetic resins are not only low in hardness and light transmittance but also frequently used by users such as touch screens. When pressed, the surface is more easily damaged, and in terms of sensing by a touch sensor, it is not preferable, and recently, tempered glass has been used.

However, display windows made of tempered glass have a problem that the workability is remarkably bad compared to that made of synthetic resin.

As a method of manufacturing window glass, which is widely used for mass production of window glass, a dry film (base film, photosensitive resist film, protective sticker, three-layer structure of base film, which is pre-printed with a plurality of window glass patterns on a glass disc is developed) Peeled off), and then exposed, developed, and cut the original glass subjected to the developing step by sandblast etching into a unit window glass, and the masking film was chemically removed from the plurality of unit glasses formed in the cutting step. .

In order to reduce defects occurring in the glass during the sandblast etching, a dry film having a thickness of 140 μm or more must be attached.

By the way, since the dry film has a thickness of approximately 20 ~ 50um, in order to satisfy the thickness, it is not only expensive and time-consuming to process the peeling of release paper from the dry film and attaching the dry film at least three times. In addition, the cost of consumables used for exposure, development, etc. is excessive, and there is a problem such as environmental pollution because chemical peeling is performed.

The present invention has been made to solve such a problem, and an object of the present invention is that it is not necessary to repeat the peeling of the release paper from the dry film and the attachment procedure of the dry film at least three times, and do not use exposure and development. It is possible to reduce the cost and processing time, and to provide a window glass manufacturing apparatus and a manufacturing method of an environmentally friendly portable electronic device.

Window glass manufacturing apparatus of the portable electronic device according to an embodiment of the present invention, the window glass etching protective sticker for automatically attaching a protective sticker for window glass etching corresponding to the pattern of the window glass of the portable electronic device on the glass disc And an attachment device and a protective sticker peeling device for window glass etching for removing the protective sticker for window glass etching attached to the window glass.

According to an embodiment of the present invention, a portable electronic device capable of attaching a film of a sticker type of 80 to 150 um that can sufficiently protect a glass during sand etching at once, and automatically peeling off a sticker type film without going through several steps An apparatus and method for manufacturing a window glass of a device can be provided.

1A is a conceptual diagram illustrating a configuration of a window glass protective sticker used in a window glass manufacturing apparatus and a manufacturing method of a portable electronic device according to an embodiment of the present invention.
2 is a graph illustrating characteristics before and after UV irradiation of a window glass protective sticker used in a window glass manufacturing apparatus and a manufacturing method of a portable electronic device according to an embodiment of the present invention.
3 is a perspective view of a window glass manufacturing apparatus of a portable electronic device according to an embodiment of the present invention.
Figure 4 is a conceptual diagram of the UV film attachment device of the window glass manufacturing apparatus of the portable electronic device according to an embodiment of the present invention.
5 is a conceptual diagram of a UV film desorption apparatus of the window glass manufacturing apparatus of the portable electronic device according to an embodiment of the present invention.
6 is a flowchart illustrating a method of manufacturing a window glass of a portable electronic device according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, the window glass manufacturing apparatus and manufacturing method of the portable electronic device according to an embodiment of the present invention will be described in detail.

First, with reference to FIGS. 1 and 2 will be described the configuration and characteristics of the protective sticker for window glass etching used in the window glass manufacturing apparatus of the portable electronic device according to an embodiment of the present invention.

The protective sticker for window glass etching used in the window glass manufacturing apparatus of a portable electronic device according to an embodiment of the present invention is sandblast etching to prevent the glass from being cracked or damaged when sandblast etching the original glass into a unit glass window. It has a high adhesive force at the time, and has a low adhesive force for peeling off without contaminating the unit glass window surface, UV film or NON-UV film can be used.

 To this end, the protective sticker 10 for window glass etching has a high adhesive force when sandblast etching by light or heat, and an adhesive pressure-sensitive layer made of an adhesive or an adhesive film which is changed to have a low adhesive force in order to detach the unit glass window without contamination. (11) and the three-layer structure of the transfer layer 12 and the transfer protection layer 13 for protecting the transfer as well as to prevent the adhesion of foreign matter adhered during the transfer.

In one embodiment of the present invention, the protective sticker 10 for window glass etching used in the window glass manufacturing apparatus of the portable electronic device according to an embodiment of the present invention, the adhesive pressure-sensitive layer 11 is shown in FIG. As shown, it can be seen that the 180 ° Peel Adhension drops from 1.73N / 25mm to 0.07N / 25mm before and after UV light irradiation, and the probe tack from 110gf / 5mmΦ to 5gf / 5mmΦ. You can see it falling.

Such physical property change is caused by UV curing. UV curing means that the strong energy of ultraviolet light from UV lamp gives energy to initiate photochemical reaction to photoinitiator. Instantly creating an intermediate polymer (oligomer), which means the polymer (polymer) in the monomer or intermediate state is a liquid state, but the liquid state is a solid state as a solid state.

Compared to thermal curing, UV curing can be cured at low temperature, and the curing speed is high, and in principle, since no solvent or diluent is used, there is almost no environmental pollution due to volatilization of solvent.

In some cases, the non-UV film has 40 ~ 150 gf / 25mm / peel strength of the bottom touching part, so it must be pulled forcibly. It can be done by.

The transfer layer 12 and the transfer protective layer 13 may prevent the adhesive pressure-sensitive layer 11 is bonded to another before UV irradiation and prevent the work from interfering with the work, and easily transfer the adhesive layer by a predetermined tension. It is preferable that it is comprised from paper, a film, etc. so that the separation from the pressure reduction layer 11 may be easy.

 On the other hand, the protective sticker 10 for window glass etching is the adhesive pressure-sensitive layer 11 is cut by a Thompson cutting method (Thomson machine having a wooden tool 15 having a knife 15a in a desired pattern by making a wooden pattern) It can be formed by continuously punching in various patterns of the window glass by the processing method).

When manufacturing the protective sticker 10 for window glass etching, half-cutting only the adhesive pressure reducing layer 11 according to the window glass pattern 1A while the adhesive pressure reducing layer 11 and the transfer layer 12 overlap each other. After removing the pressure-sensitive adhesive layer 11 of the dummy part 1B between the window glass pattern 1A, the transfer protection layer 13 is overlapped and prepared.

3 to 5 will now be described in detail with respect to the window glass manufacturing apparatus of the portable electronic device according to an embodiment of the present invention according to an embodiment of the present invention.

Window glass manufacturing apparatus (1000) of the portable electronic device according to an embodiment of the present invention is a device for attaching the protective sticker for window glass etching 100 is basically the same as one roll-to-roll apparatus for automation and the The property variable device for lowering the adhesion of the protective sticker for window glass etching by the provision of a property variable source may be made of the protective sticker peeling device 200 for window glass etching, which may be inline. 11) may be provided with a protective sticker peeling device 200 for window glass etching, including a UV irradiation device for providing UV properties independently for each of the window glass (10) attached for example, a property variable source. These devices are all very simplified, providing at least three release paper release and dry film attachments. And it is configured to not having a complicated apparatus for the chemical separation of the dry film attached.

First, the apparatus for attaching the protective sticker for window glass etching illustrated in FIG. 4 will be described. The protective sticker 10 for window glass etching is continuously supplied to attach the pressure-sensitive adhesive layer 11 to the glass disc. Roll to roll driving device for 110, the pressing device 120 for attaching the pressure-sensitive adhesive layer 11 to the glass disk, and the glass disk so that the glass disk 1 is placed on the stage 131 in place An XYΘ alignment device 130 for aligning, and an inspection device 140 for fitting the pressure-sensitive adhesive layer 11 is attached to the window glass pattern (10A) on the aligned glass disc.

Of course, a loading device (not shown) for loading the glass disc 1 into the stage 131 may be further provided, and the loading device may be designed in a stack or cassette type and may be semi-automatic or fully automated. In the case of full automation, the operator can automatically load and unload the glass disc 1.

In addition, since the transfer layer 12 and the transfer protection layer 13 of the protective glass sticker 10 for window glass etching may be made of paper or film, a lot of static electricity may be generated, and may further include an ion blowing nozzle.

Specifically, the roll-to-roll apparatus 110 includes a first roller 111 for supplying the protective sticker 10 for window glass etching, and the window glass etching supplied from the first roller 111. The second roller 112 winding the separated transport protection layer 112 and the transport protection layer 12 are separated so that the transport protection layer 12 separated from the protective sticker 10 can be continuously separated. A third roller 113 on which the transfer protective layer 13 is transferred from the window glass etching protective sticker 10 to the glass disc so as to continuously laminate the adhesive pressure-sensitive layer 11; A rotation drive unit 114 for driving the first, second, and third rollers 111, 112, and 113 to have a predetermined torque, the protective sticker 10 for window glass etching, the transfer layer 12, and Allow the transfer protective layer 13 to proceed at a predetermined working speed, and Of and a tension control roller (116) for controlling the tension so as to have a tension.

The pressing device 120 for attaching the pressure-sensitive adhesive layer 11 to the glass disc may be a pressing roller 121 or a blade 122.

The pressing roller 121 or the blade 122 is provided with pattern protrusions 121A and 122A corresponding to the predetermined array 11A of the adhesive pressure-sensitive layer 11 to precisely seal the adhesive pressure-sensitive layer 11. It can be attached to the disc 1.

The XYΘ alignment device 130 includes an X-axis alignment driver 132 for linearly driving the stage 131 to the X-axis, and a Y-axis alignment driver 133 for linearly driving the stage 131 to the Y-axis. And Θ alignment driver 134 that can adjust not only the X and Y axes but also the angle between the X and Y axes.

The inspection apparatus 140 includes dual camera heads 141 and 142 so that the alignment marks can be aligned while simultaneously viewing the pattern marks 11B of the adhesive pressure-sensitive layer 11 and the pattern marks 10B of the glass original plate. The first illumination 143a irradiated to the pattern mark 11B of the layer 11 and the second illumination 143b irradiated to the alignment mark 10B of the glass disc, the first illumination 143a and the first agent The mechanical tolerance may be aligned in real time using a vision, including a third illumination 143c for checking whether the light emitted from the second illumination 143b is coaxial.

Referring to the protective sticker peeling apparatus 200 for window glass etching illustrated in FIG. 5, the adhesive layer 21 adhered to the UV-cured pressure-sensitive adhesive layer 11 and the transfer layer for continuously transferring the adhesive layer 21. (22) and a roll-to-roll for continuously peeling off the pressure-sensitive adhesive layer (11) from the window glass by continuously supplying the pressure-sensitive adhesive layer removing film (20) consisting of the transfer protective layer (23) protecting the adhesive layer (21). A window glass assembly to which the driving device 210, the pressure-sensitive adhesive layer 11 is attached to the adhesive layer 21 of the removal film 20, and the pressure-sensitive adhesive layer 11 is attached. An XYΘ alignment device 230 for aligning the window glass assembly 2 so that (2) is disposed in place on the stage 231, and the adhesive pressure-sensitive layer 11 on the aligned window glass assembly 2; The adhesive layer pattern (20A) of the removal film 20 is matched It includes a test device 240 to match the alignment.

Of course, a loading device (not shown) for loading the window glass assembly 20 to which the pressure-sensitive adhesive layer 11 is attached to the stage 231 may be further provided, and the loading device is designed to be stacked or cassette type. It is possible and can be semi-automated or fully automated.

In the case of full automation, the operator can automatically load and unload the window glass assembly 2 to which the pressure-sensitive adhesive layer 11 is attached.

In addition, since the transport layer 22 and the transport protection layer 23 of the removal film 20 may be made of paper or a film, a lot of static electricity may be generated, and may further include an ion blowing nozzle.

In detail, the roll-to-roll apparatus 210 is separated from the first roller 111 for supplying the removal film 20 and the removal film 20 supplied from the first roller 111. The second roller 212 winding the separated transport protection layer 22 so that the transport protection layer 22 can be continuously separated, and the removal film 20 from which the transport protection layer 12 is separated. The third roller 213 on which the transfer protective layer 23 is transported so that the adhesive layer 21 and the adhesive pressure-sensitive layer 11 are continuously bonded, and the first, second, and third rollers 211, 212, Rotation drive unit 214 for driving the rotation 213 to have a predetermined torque, and the tension control roller 216 to allow the removal film 20 to proceed with a predetermined torque, the tension control to have a predetermined tension ).

The pressing device 220 for bonding the adhesive layer 21 to the UV-cured pressure-sensitive adhesive layer 11 ′ may be a pressing roller 221 or a blade 222.

The pressing roller 221 or the blade 222 is provided with pattern protrusions 121A and 122A corresponding to the predetermined array 11A of the pressure-sensitive adhesive layer 11 so that the adhesive layer 21 has a changed physical property, that is, sand blasted. At the time of etching, it has a high adhesive force, and in order to remove it without contamination of the unit glass window surface, the adhesive pressure-sensitive layer 11 'having a low adhesive force can be precisely adhered and separated.

Since the XYΘ alignment device 230 and the inspection device 240 are the same as those of the attachment device 100, detailed descriptions thereof will be omitted to avoid duplication.

The physical property variable device 250 is disposed before the pressing device 220, and has a high adhesive force during the sandblast etching, and has a low adhesive force in order to remove the unit glass window surface without contamination. There may be a variety of things that can be changed, but may be a variety of devices such as UV lamps, UV lasers for irradiating ultraviolet rays of approximately 200 to 400nm, in the present invention was used a high pressure Mercury lamp for irradiating ultraviolet rays of 365nm wavelength It has a power of approximately 3.5 kw, lamp life is more than 900 hours, and the volume can be made slimmer by using 120mw / cm2.

A method of manufacturing the window glass of a portable electronic device will now be described in detail with reference to FIG. 6.

<Method of manufacturing window glass of portable electronic device>

In the method of manufacturing a window glass of a portable electronic device according to an embodiment of the present invention, the glass discs 10 for the window glass are automatically or semi-automatically loaded by a loading apparatus in a cassette or stack type (S10). The glass disk 10 for the window glass 10 is transferred from the cassette or the stack on the stage 131 (S20) and aligned in the alignment mark of the glass disk 10 by the XYΘ alignment device 130 (S30). The glass etching protective sticker 10 is loaded on the first roller 111, and the end of the transfer protection layer 12 of the window glass etching protective sticker 10 is mounted on the second roller 112. The end of the transfer layer 13 of the etching protective sticker 10 is attached to the third roller 13 (S31) and the pattern of the pressure-sensitive adhesive layer 11 on the protective sticker 10 for window glass etching and the glass By using the alignment mark on the disc 1 While checking the alignment with the inspection device 140 (S32), while aligning with the alignment device 130 (S33), while driving the first roll 111 while supplying the protective sticker 10 for the window glass etching The pattern 11A of the pressure-sensitive adhesive layer 11 is supported using the protrusions 121 and 122A of the pressing device 120 while continuously removing the transport protection layer 112 through the second roll 112. It is made to adhere by pressing in place of the glass original plate 1 (S40).

In this manner, since the protective sticker 10 for etching the window glass is attached to the glass disc 1 at predetermined intervals by a simple process, damage to the glass can be prevented, and parameters can be adjusted regardless of the thickness of the glass. .

The window glass etching protective sticker 10 is attached to the upper surface of the glass original plate 1, the glass original plate 1 is turned over, and the protective sticker 10 for window glass etching is repeatedly attached to the lower surface of the glass original plate 1. (S50).

As described above, the window glass etching protective sticker 10 is sand-etched while attached to the upper and lower surfaces thereof, and thus, the unit window glass array is sand-etched (S60) and the adhesive pressure-sensitive layer 11 is attached. Loading into a cassette or stack (S70)

The variable pressure source may be independently provided to the unit window glass array from the physical property variable device 250, and, for example, the adhesive pressure-sensitive layer 11 may be peeled off by irradiating UV rays.

In one embodiment of the present invention, the removal film 20 to align the window glass array (2) to which the adhesive pressure-sensitive layer 11 is attached (S80), the adhesive pressure-sensitive layer 11 is removed Supplying from the first roller 211, and removing the transfer protection layer 212 from the second roller 212, such as in-line preparation (S80), UV irradiation apparatus 250 to the window glass array (2) Irradiating ultraviolet rays continuously from (S90) so that the adhesive force between the adhesive pressure-sensitive layer 11 and the window glass is weakened and the adhesive layer 21 of the removal film 20 is adhered to the upper surface of the adhesive pressure-sensitive layer 11. The pressure-sensitive adhesive layer 11 may be removed from the glass disc as the pressing device 220 is pressed (S100) and the transport layer 23 of the removal film 20 is pulled and wound on the third roller 213. It may be (S110).

The removed pressure-sensitive adhesive layer 11 may be continuously wound around the third roller 213 along the transfer layer 22 of the removal film 20 to proceed with the operation continuously (S120).

The adhesive pressure-sensitive layer 11 disposed on the upper surface of the unit window glass 2 is bonded to the adhesive layer 21 of the removal film 20 to transfer and separate the transfer layer 22, and the unit window glass 2 is turned upside down. The adhesive pressure-sensitive layer 11 is repeatedly adhered to the lower surface of (2) by the adhesive layer 21 of the removal film 20 to be transported and separated to the transfer layer 22 (S130).

When all the work is finished, the cassette of the window glass is removed.

Roll to Roll Device: 110, 210
Crimping Device: 120, 220
Sorting device: 130, 230
Inspection device: 140, 240
Property Variable Device: 250

Claims (13)

Apparatus for attaching a protective sticker for window glass etching for automatically attaching a protective sticker for window glass etching corresponding to a pattern of a window glass of a portable electronic device to a glass disc;
The apparatus for manufacturing window glass for a portable electronic device comprising a protective sticker peeling device for window glass etching to remove the protective sticker for window glass etching attached to the window glass. The method of claim 1,
The window glass etching protective sticker has a thickness of 80 to 150um, the window glass etching protective sticker peeling device is a window glass manufacturing apparatus for a portable electronic device to peel the window glass etching protective sticker to the tension of the roll-to-roll apparatus. The method of claim 1,
The window glass etching protective sticker is a window glass manufacturing apparatus for a portable electronic device comprising a physical property variable device in a stand-alone or in-line type. 3. The method of claim 2,
When the physical property variable device is included in an in-line type, the apparatus for attaching the protective sticker for window glass etching and the apparatus for peeling the protective sticker for window glass etching is for supplying and transporting the protective sticker for window glass etching or its removal film. A roll roll device including at least three rollers, a pressing device for pressing and attaching or adhering on the window glass etching protective sticker or the removal film, and the glass plate or the window sticker etching protective sticker. XYΘ alignment drive for aligning the window glass assembly on the work stage, and a inspection device for checking whether the alignment mark of the glass disc and the protective sticker for window glass etching or its removal film is coaxially arranged. Window glass manufacturing cabinet for electronic equipment . The method of claim 1,
The protective sticker for window glass etching includes an adhesive pressure reduction layer made of an adhesive or an adhesive film, a transfer layer for transferring the same, and a transfer protection layer for protecting the adhesion of foreign substances from falling during the transfer of the adhesive pressure reduction layer. Window glass manufacturing apparatus for a portable electronic device comprising. The method of claim 3, wherein
The removal film may include a pressure-sensitive adhesive layer adhered to the protective sticker for window glass etching, a transfer layer for transferring the same, and a transfer protective layer for protecting the adhesion of foreign substances from falling during the transfer of the pressure-sensitive adhesive layer. Window glass manufacturing apparatus for a portable electronic device comprising. The method of claim 3, wherein
The inspection apparatus irradiates the dual camera head and the first illumination irradiated to the pattern mark of the adhesive pressure-sensitive layer and the alignment mark of the glass master so that the pattern mark of the pressure-sensitive adhesive layer and the pattern mark of the glass master can be simultaneously aligned. Window glass for portable electronic devices that align mechanical tolerances in real time by using a vision, including a second light to be and a third light for checking whether the light emitted from the first light and the second light is coaxial Manufacturing device. In the method of manufacturing a window glass of a portable electronic device,
When sand blasting on the glass plate for window glass, it has a high adhesive strength, and in order to separate the unit glass window surface from the surface without separation contamination, it has a low adhesive force, and includes a property variable layer, and has a thickness of 80 to 150um. A roll-to-roll apparatus comprising a first roller for supplying a protective sticker, a second roller for removing and removing the transport protective layer from the window glass etching protective sticker, and a third roller for pulling the transport layer from the window glass etching protective sticker. Attaching the pressure-sensitive adhesive layer disposed below the transfer layer from the protective sticker for etching the window glass onto the glass disc for window glass using a blade or a roller while automatically supplying the
Sandblasting the glass disc with the protective sticker for window glass etching with unit window glass;
Peeling the protective sticker for window glass etching, The window glass manufacturing method of a portable electronic device. The method of claim 8,
The peeling step includes the step of providing the property variable from the property variable device having a high adhesion to the unit window glass but changing to have a low adhesion by the property variable source to cure and peel the protective sticker for etching the window glass. Window glass manufacturing method of a portable electronic device. The method of claim 9,
The physical property variable device is a UV irradiation device, the physical property variable source is a UV glass manufacturing method of the window glass of the portable electronic device. 11. The method of claim 10,
The step of curing and peeling the protective sticker for window glass etching may be performed by supplying a removal film having an adhesive layer instead of the adhesive pressure-sensitive layer to the first roller, the second roller, and the third roller, and curing the UV-rays. Method for manufacturing a window glass of a portable electronic device to separate the adhesive pressure-sensitive layer by pulling the adhesive layer. The method of claim 8,
And arranging the glass disc for the window glass before attaching the pressure-sensitive adhesive layer on the glass disc for the window glass,
Aligning and arranging the glass disc for window glass further comprises arranging and arranging the glass disc for window glass on a stage by an XYΘ alignment driver to an angle between the X axis, the Y axis, and the X axis and the Y axis. Window glass manufacturing method of a portable electronic device. 13. The method of claim 12,
Arranging and arranging the glass disc for window glass, and then checking whether the alignment mark of the glass disc for window glass and the pattern mark of the pressure-sensitive adhesive layer are coaxially aligned.
The inspecting step is a window glass manufacturing method of a portable electronic device comprising a dual vision having a first head for collecting information from the pattern mark of the pressure-sensitive adhesive layer and a second head for collecting information from the alignment mark of the glass disc. .

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