KR102091356B1 - Maunfacturing method of window glass for smartphone camera having uv molding pattern - Google Patents

Abstract

The present invention relates to a manufacturing method for smartphone camera window glass having a UV molding pattern. The manufacturing method for smartphone camera window glass having a UV molding pattern aims to implement various design patterns and clear and various colors on window glass for a camera through a UV molding pattern and a print pattern. The manufacturing method for smartphone camera window glass having a UV molding pattern comprises: a cell cutting line processing step of forming cell cutting lines to separate cells on an original glass plate; a sheet cutting step of cutting the original glass plate in a sheet unit composed of a plurality of glass cells by lasers; a sheet reinforcing step of improving surface stress of the glass sheet by potassium nitrate and making the cell cutting lines clear; a UV molding pattern forming step of forming a pattern on the window glass through a UV molding pattern; a print pattern forming step of forming a print pattern on the top surface of the UV molding pattern through printing; an AR depositing step of forming an AR deposition layer on a transmission area of the back surface of each of the glass cells in order to increase transmittance and reduce reflectance; an AF depositing step of forming an AF deposition layer on the front surface unit of each of the glass cells in order to prevent contamination due to a fingerprint and foreign materials; and a cell separating step of pushing up or down the glass cells in the sheet unit for cell separation along the cell cutting line. Therefore, the manufacturing method for smartphone camera window glass having a UV molding pattern can form a UV molding pattern and a print pattern within a printing available range on window glass for a camera, can increase a decorative feature by managing brightness through thickness regulation of a design pattern, can form various design patterns such as a spin, a dot, and a line, and can implement colorful expression by adding a hologram pattern.

Description

Manufacturing method of window glasses for smartphone cameras with UV molding patterns {MAUNFACTURING METHOD OF WINDOW GLASS FOR SMARTPHONE CAMERA HAVING UV MOLDING PATTERN}

The present invention relates to a method for manufacturing a window glass for a smart phone camera having a UV molding pattern, and more specifically, in a method for manufacturing a window glass for a smart phone camera, cell cutting to form a cell cutting line for separating cells on a glass disc. Pre-processing process, sheet cutting process to cut glass discs into sheet units made of multiple glass cells by laser, sheet strengthening process to increase the surface stress of glass sheet by potassium nitrate and to clearly form cell cutting lines , UV molding pattern forming process to form a pattern on the window glass as a UV molding pattern, printing pattern forming process to form a printing pattern through printing on the upper surface of the UV molding pattern, to increase the transmittance in the transparent region on the back of each glass cell AR deposition process to form an AR deposition layer to lower the reflectance, fingerprints and foreign objects on the front of each glass cell It consists of an AF deposition process to form an AF deposition layer to prevent salt, and a cell separation process that pushes the glass cells of the sheet unit up or down to separate cells along the cell cutting line, and prints the UV molding pattern and prints on the window glass for the camera. The purpose is to enable the expression of various pattern patterns and vivid and various colors through patterns.

In general, a smartphone camera is provided with a window glass for protecting the lens of the camera on the front.

The camera window protects the window glass while maximizing the light transmittance of the lens of the smartphone camera.

On the other hand, the camera window glass as described above is to increase the decorativeness by forming a pattern pattern through etching or printing on one surface of the window glass disc to increase the decorativeness.

However, as described above, the window glass for a smart phone camera has a problem in that workability is deteriorated when a pattern is made through an etching process, and embossed expression is not made when it is made through printing, thereby deteriorating aesthetic sense.

Republic of Korea Patent No. 10-1948473

That is, according to the present invention, the window glass for a conventional smart phone camera has a problem in that workability is deteriorated when a pattern is made through an etching process, and embossed expression is not achieved when it is made through printing, thereby reducing aesthetics. It was made to solve.

That is, in the present invention, in the method of manufacturing a window glass for a smart phone camera, a cell cutting line processing process of forming a cell cutting line for separating cells in a glass disk, and a sheet unit comprising a plurality of glass cells by using a laser glass plate The sheet cutting process to cut with, the sheet strengthening process to increase the surface stress of the glass sheet by potassium nitrate and the cell cutting line is clearly formed, the UV molding pattern forming process to form the pattern on the window glass with UV molding pattern, Print pattern formation process that print pattern is formed through printing on the upper surface of UV molding pattern, AR deposition process to form an AR deposition layer to increase transmittance and lower reflectivity on the rear transmission area of each glass cell, front of each glass cell AF deposition process to form an AF deposition layer to prevent fingerprints and foreign matter contamination on the part, and push the glass cell of the sheet unit up or down. It is characterized in that the cell consisting of a separation process which causes separation cell according to the cell cutting line.

Accordingly, the present invention is a cell cutting line forming process for forming a cell cutting line for cell separation in a glass disk and a sheet cutting process for cutting the glass disk into sheets made of a plurality of glass cells by a laser, glass by potassium nitrate Sheet strengthening process that increases the surface stress of the sheet and cell cutting lines are clearly formed, UV molding pattern forming process that pattern is formed on window glass with UV molding pattern, and printing pattern through printing on the upper surface of UV molding pattern pattern The process of forming a print pattern to form this, the process of AR deposition to form an AR deposition layer to increase the transmittance and decrease the reflectance on the rear transmission area of each glass cell, and AF deposition to prevent fingerprint and foreign material contamination on the front surface of each glass cell AF deposition process to form a layer, cell separation to push the glass cells of the sheet unit up or down to separate the cells along the cell cutting line By forming, UV molding pattern and printing pattern are formed within the printable range on the window glass for the camera, and the brightness is managed by adjusting the thickness of the pattern to increase the decorativeness, and various pattern designs such as spins, dots, and lines can be formed. In addition, if a hologram pattern is added, a brilliant color can be realized.

1 is a schematic diagram of a method for manufacturing a window glass for a smartphone camera having a UV molding pattern according to an embodiment of the present invention.
Figure 2 is a view showing a process of cell cutting line processing of a window glass manufacturing method for a smartphone camera having a UV molding pattern according to an embodiment of the present invention.
3 is a view showing a process of forming a UV molding pattern of a method for manufacturing a window glass for a smartphone camera having a UV molding pattern according to an embodiment of the present invention.
4 is a view showing a process of rolling a jig mold of a window glass manufacturing method for a smartphone camera having a UV molding pattern according to an embodiment of the present invention.
5 and 6 are views showing a process of forming each print pattern of a window glass manufacturing method for a smartphone camera having a UV molding pattern according to an embodiment of the present invention.
7 is a view showing a product through AR and AF deposition of a window glass manufacturing method for a smartphone camera having a print pattern according to an embodiment of the present invention.
8 is a view showing a holographic pattern and a holographic pattern surface analysis picture formed from a dot-type UV pattern mold formed by a method for manufacturing a window glass for a smartphone camera having a printing pattern according to an embodiment of the present invention.
8 is a view showing a hologram pattern formed from a spin type UV pattern mold formed by a method for manufacturing a window glass for a smartphone camera having a printing pattern according to an embodiment of the present invention.

Hereinafter, described in detail with reference to the accompanying drawings.

The present invention is to form a pattern pattern using a UV molding pattern within the printable range on the window glass for the camera, the terms or words used in the present specification and claims should not be interpreted as being limited to a conventional or dictionary meaning , The inventor should be interpreted as meanings and concepts consistent with the technical idea of the present invention based on the principle that the concept of terms can be properly defined in order to explain his or her invention in the best way.

Therefore, the configuration shown in the embodiments and drawings described in this specification is only one of the most preferred embodiments of the present invention, and does not represent all of the technical spirit of the present invention, and can replace them at the time of this application. It should be understood that there may be various equivalents and variations.

That is, the present invention is a method for manufacturing a window glass for a smartphone camera, a cell cutting line processing process 100 and a sheet cutting process 200, a sheet strengthening process 300, a UV molding pattern forming process 400, and a printing pattern It consists of a forming process 500, an AR deposition process 600, an AF deposition process 700, and a cell separation process 800.

Here, the cell cutting line processing process 100 is to form a cell cutting line 31 for cell separation on the glass disc 11.

The cell cutting line processing process 100 is a DFR (Dry Film PhotoResist) that is developed such that only the forming portion of the cell cutting line 31 of the glass disk 11 is exposed by photoreaction on both surfaces of the glass disk 11. The photomask according to the cell cutting line 31 designed on both sides of the upper and lower surfaces of the DFR laminated glass disk 11 through the cell cutting DFR double-sided laminating step 110 and the cell-cutting DFR double-sided laminating step 110. 21) Cell cutting exposure step (120) for irradiating UV light through the medium, and cell cutting pre-baking step (130) by adhering DFR to the glass disc (11) to prevent DFR from being lifted during development and etching. , Cell cutting development step 140 to remove the DFR is not exposed to ultraviolet light through the cell cutting exposure step 120, DFR weakened by the phenomenon through the cell cutting development step to the glass disc 11 Cell cutting hard brake step to press closely (150), a laser cell cutting line processing step (160) of forming a cell-cutting property of a certain depth by using a laser to form the cell cutting line (31) of the glass disc 11 exposed through the cell cutting phenomenon step (140). ), The cell cutting glass etching step 170 to form the cell cutting groove by melting the surface formed with the cell cutting line 31 exposed through the laser cell cutting line processing step 160 with an etching solution, and the cell cutting glass etching step (170) Cell cutting DFR peeling step 180 to remove DFR remaining on the glass disk 11 by the stripping solution and cells to uniformly surface the surface of the glass disk 11 by etching within 2 minutes in a low concentration of the etching solution It consists of a cutting healing step 190.

The glass disc 11 is 250 ± 20 ℃, 30min ± 10min, 420 ± 20 ℃ after preheating using hot air, and 150 ± 20 ℃ after main heating in KNO3 (potassium nitrate) for 100min ± 20min. 15 minutes ± 5 minutes, through the process of slow cooling using hot water, the surface stress has 500 ~ 600Mpa, the strengthening depth is strengthened to 10 ~ 30㎛, and the center stress has 50 ~ 90Mpa. It is used.

When the half-reinforced glass disc 11 is used as described above, it is to prevent the etching pattern depth deviation and over-etching due to the reaction deviation during pattern etching to prevent handling, chipping, and scratching between processes.

In performing the cell-cutting DFR double-sided lamination step 110, the upper surface uses a medium-sensitivity DFR to prevent excessive exposure of the lower DFR layer where continuous exposure is performed in the next step of the cell-cut exposure step. It is desirable to perform the surface reduction using DFR.

The cell cutting pre-baking step 130 is to dry and stabilize the excited DFR layer in the cell cutting exposure step 120 by drying at a temperature of 100 to 120 ° C for 10 to 20 minutes.

The cell cutting hard brake step 150 is to pressurize and dry the DFR layer for 40 to 60 minutes at a temperature of 120 to 150 ° C. to stabilize and stabilize the DFR layer excited in the cell cutting phenomenon step 140.

In the cell cutting glass etching step 170, the cell cutting groove is etched in a hydrofluoric acid etching solution containing 25 to 50% by weight of a hydrofluoric acid mixture for 200 to 350 seconds.

In the cell cutting healing step 190, the entire surface of the glass disk 11 is mixed with hydrofluoric acid to improve the appearance and improve the quality by improving the roughness of the etching area roughly formed in the cell cutting glass etching step 170. Healing etching is performed on the low hydrofluoric acid etching solution composed of ~ 15% by weight.

In addition, the sheet cutting process 200 is to cut the glass disk 11 into sheets made of a plurality of glass cells 13 by a laser.

In addition, the sheet strengthening process 300 is to increase the surface stress of the glass sheet 12 by potassium nitrate and to clearly form the cell cutting line 31 through the change of the surface stress.

The sheet strengthening process 300 is preheated by heating for 20-40 minutes in a hot air of 250-310 ° C, immersed in a potassium nitrate strengthening solution of 390-450 ° C, strengthened for 120-170 minutes, and 100-170 ° C It consists of a process of slow cooling in a fluid for 10-20 minutes at a temperature, and is strengthened to have a surface stress of 650-850 Mpa, a reinforcement depth of 30-45 µm, and a median stress of 100-130 Mpa. The cell is cut by the cell cutting line 31 so that each glass cell 13 is coupled in an engaged state.

In addition, the UV molding pattern forming process 400 is such that a pattern is formed on the window glass as a UV molding pattern.

The UV molding pattern forming process 400 is a quantitative UV resin using a protective film 71 attaching step and an automatic dispenser to attach a protective film 71 of 50-125 μm PET material to the opposite side of the UV molding pattern. After the resin injection step 410 for putting the glass into the glass disc 11, the jig mold 72 is seated on top of the UV resin injected into the glass disc 11, and then rolled at a pressure of 4 to 6 kg / cm2 to make the UV resin. The jig mold rolling step 420 to flatten, UV curing step to irradiate UV according to the transmission pattern formed in the jig mold 72 to cure the rolled UV resin, and the jig mold 72 at the top of the UV resin Removing the jig mold to remove (440), UV resin cleaning step (450) to clean and remove uncured UV resin, UV resin cleaning step (450) to UV molding by irradiating the surface of the UV molding pattern damaged during the washing process Second UV curing step (460) to completely cure the pattern, protection attached to the glass disc (11) It consists of a protective film removal step 470 to remove the film (71).

The jig mold 72 is a mold substrate 72a made of a polycarbonate or PET light-transmitting plate material and a mold pattern portion 72b for forming a UV blocking pattern to form a UV molding pattern on the lower portion of the mold substrate 72a. , Flattening on the lower part of the mold patterning part 72b and the mold molding pattern part 72c contacting the UV resin for UV curing and smooth peeling of the UV resin to be flattened and UV cured on the surface of the mold molding pattern part 72c It is made of a mold AF coating layer 72d coated with an anti-finger coat (AF) to prevent wear damage of the mold molding pattern portion 72c.

On the other hand, the mold molding pattern portion 72c may be performed by forming a mold embossing portion 72e to emboss the UV resin so that a hologram pattern is formed from the UV molding pattern.

In addition, the printing pattern forming process 500 is to form a printing pattern on the top surface of the UV molding pattern through printing.

The printing pattern forming process 500 is a pattern printing step 510 for printing a pattern with a thermosetting color ink on the upper surface of the UV molding pattern to form a printing pattern layer, and the glass sheet 12 after the pattern printing step 510 The print multi-deposition step 520 to form the pattern multi-deposition layer 42 as the top surface of the print pattern layer of the base print layer on the top surface of the multi-deposition layer except for the central transmission area of the glass cell 13 through which light passes ( 43) forming the base printing step 530, the base printing layer 43 through which the base printing layer 43 is not formed, the glass cell 13, the pattern multi-deposition layer 42 formed in the central transmission area It is possible to perform the pattern multi-etching step 540 to remove the etching.

In addition, the printing pattern forming process 500 is a thermosetting color ink pattern on the top surface of the print multi-deposition step 520 and the pattern multi-deposition layer 42 to form a pattern multi-deposition layer 42 on the top surface of the UV molding pattern. Pattern printing step (510) to form a printed pattern layer by printing a base print step (43) to form a base print layer (43) on the top surface of the multi-deposited layer excluding the central transmission area of the glass cell (13) through which light is transmitted ( 530, a pattern multi-etching step 540 of etching and removing the pattern multi-deposition layer 42 formed in the central transmission region of the glass cell 13 on which the base print layer 43 is not formed through the base printing step 530. ).

The pattern printing step 510 is performed by printing a thermosetting black or color ink using a printing mask, and drying the hot air of 100 to 150 ° C. for 30 to 60 minutes, the printing mask having dimensional stability and a glass sheet (12 ) Is made of stainless printing mask so that the pattern printing part and the pattern non-printing part are clearly separated.

The printing multi-deposition step 520 deposits high-refractive and low-refractive materials such as Al2o3, Tio2, Ti3o5, Indium, and Nb2o5 in multiple layers to improve the brightness (brightness) of the pattern printing layer 41 and implement various colors. To do.

The base printing step 530 is to print a thermosetting black or color ink, and dry the hot air at 100 to 150 ° C. for 30 to 60 minutes to form a base printing layer 43, wherein the base printing layer 43 The outer rim is formed by forming 0.2 mm smaller than the rim of the glass cell 13 to be separated.

The pattern multi-etching step 540 is to etch and remove the etchant into a multi-layer formed in a portion where the base printing layer 43 is not formed by eroding in an alkaline etchant at 40 to 70 ° C for 5 to 10 minutes, wherein the alkaline etchant is a glass sheet ( It is made to have an acidity of Ph12.0 or higher so as not to damage the surface of 12).

In addition, the AR deposition process 600 is to form an AR deposition layer 51 in order to increase transmittance and decrease reflectivity in the rear transmission region of each glass cell 13, such as Al2o3, Tio2, Ti3o5, Indium, Nb2o5, etc. It is to increase the light transmittance of the transmission region by depositing high-refractive and low-refractive materials in multiple layers.

In addition, the AF deposition process 700 is to form the AF deposition layer 52 to prevent fingerprint and foreign material contamination on the front surface of each glass cell 13, the front portion exposed to the outside of the glass sheet 12 On the surface of the pattern, AF (Anti Finger Coat) is performed by vacuum deposition (dry type), and SIO2 material is coated 50 ~ 200 표면 on the glass surface, followed by 100 ~ 300Å coating of the fluorine-based polymer.

In addition, the cell separation process 800 is to push the glass cells 13 of the sheet unit up or down to separate the cells along the cell cutting line 31.

Hereinafter, the operational effects of the application of the present invention will be described.

In the method for manufacturing window glass for a smartphone camera as described above, the cell cutting line processing process 100 and the glass disk 11 forming the cell cutting line 31 for separating the cells from the glass disk 11 are performed. Sheet cutting process (200) cutting in sheet units made of a plurality of glass cells (13) by a laser, the surface stress of the glass sheet (12) is increased by potassium nitrate, and the cell cutting line (31) is clearly formed. Sheet strengthening process 300, UV molding pattern forming process 400 to form a pattern on the window glass as a UV molding pattern, and printing pattern forming process 500 to form a printing pattern through printing on the top surface of the UV molding pattern (500) ), AR deposition process (600) to form an AR deposition layer (51) to increase the transmittance and lower the reflectance in the rear transmission area of each glass cell (13), fingerprint and foreign matter contamination on the front surface of each glass cell (13) To prevent the formation of the AF deposition layer 52 If the AF deposition process 700, the glass unit 13 of the sheet unit is pushed up or down to apply the present invention consisting of a cell separation process 800 for cell separation along the cell cutting line 31, It is possible to form a UV molding pattern that manages brightness through thickness control by using a UV molding pattern within the printable range on the window glass for the camera, and to form a printing pattern on the top surface of the UV molding pattern, so that it spins on the glass cell 13 By forming various pattern designs such as dots, lines, and so on, decorative properties are enhanced and various colors can be realized.

On the other hand, in the practice of the present invention, the cell cutting line processing process 100 by the photoreaction on both sides of the glass disc 11 so that only the cell cutting line 31 forming portion of the glass disc 11 can be exposed. A cell cutting line designed on both sides of the upper and lower surfaces of the DFR laminated glass disc 11 through the cell-cutting DFR double-sided laminating step 110 and the cell-cutting DFR double-sided laminating step 110 to laminate the developed DFR (Dry Film PhotoResist). Cell cutting exposure step (120) of irradiating ultraviolet rays through the photomask (21) according to (31), by adhering DFR to the glass disc (11), pressurizing to prevent lifting of DFR during development and etching process Cell cutting pre-baking step 130, the cell-cutting exposure step (120), the cell-cutting developing step (140) to remove the unexposed DFR by the development through the cell-cutting exposure step (120), weakened by the phenomenon through the cell-cutting step Pressing the DFR in close contact with the glass disc (11) Cell cutting hard-breaking step 150, the laser cutting cell to form a cell-cutting property of a certain depth with a laser on the surface of the cell cutting line 31 of the glass disc 11 exposed through the cell cutting phenomenon step 140 Pre-processing step 160, the cell-cutting glass etching step 170 to form a cell-cutting groove by melting the surface formed with the cell-cutting line 31 exposed through the laser cell-cutting line processing step 160 with an etching solution, the After the cell-cutting glass etching step 170, the cell-cutting DFR peeling step 180 and the glass disc 11, which remove the DFR remaining on the glass disk 11 by the peeling solution, are etched in less than 2 minutes in a low concentration of the etching solution. When the surface is made of a cell cutting healing step (190) to make the surface uniform, in the cell cutting DFR double-sided lamination step (110), the front and rear DFRs are performed with different sensitivities and exposed in the cell cutting exposure step (120). It is made by adjusting the intensity of the light, and the exposure is achieved in advance. This is to prevent damage due to excessive exposure of the DFR layer on the front surface of the glass disc 11 and the etching defect caused by it.

In addition, the adhesiveness of the glass sheet 12 of the DFR layer is maintained through the cell-cutting pre-baking step 130 and the cell-cutting hard-breaking step 150 so that the clear cell-cutting line 31 in the cell-cutting glass etching step 170 is maintained. ) Is formed.

In addition, since the entire surface of the glass disk 11 is surface-etched with a low concentration of etchant through the cell cutting healing step 190 to stabilize the rough surface, the strength and light transmittance of the glass disk 11 are maximized.

In addition, in the practice of the present invention, the UV molding pattern forming process 400 and the protective film 71 attaching step of attaching a protective film 71 of a thickness of 50 ~ 125㎛ PET material on the opposite side of the UV molding pattern 4 ~ 6kg after seating the jig mold 72 at the top of the resin injection step 410, and the UV resin injected into the glass disk 11, the UV resin is injected into the glass disk 11 in a quantitative manner using an automatic dispenser. Zig mold rolling step (420) to flatten the UV resin by rolling at a pressure of / cm2, UV curing step to irradiate UV according to the transmission pattern formed in the jig mold 72 to cure the rolled UV resin, UV resin The jig mold removal step 440 for removing the jig mold 72 from the upper part, the UV resin washing step 450 for washing and removing uncured UV resin, and the UV molding damaged during the washing process in the UV resin washing step 450 Second UV curing step (46) to completely cure the UV molding pattern by irradiating the surface of the pattern with UV 0), when the protective film removal step 470 for removing the protective film 71 attached to the glass disc 11 is performed, the UV resin is flattened and applied by the jig mold 72, and the jig mold The UV molding pattern formed by curing UV resin by irradiating UV through (72) is clearly formed, and curing of the UV resin consists of the primary UV curing step (430) and the secondary UV curing step (460). In the process of washing the non-cured UV resin, the UV-cured UV molding pattern is more clearly cured.

A mold pattern portion 72b for forming the UV blocking pattern to form a UV molding pattern on the lower portion of the mold substrate 72a and the mold substrate 72a made of a polycarbonate or PET light-transmissive plate material. , Flattening on the lower part of the mold patterning part 72b and the mold molding pattern part 72c contacting the UV resin for UV curing and smooth peeling of the UV resin to be flattened and UV cured on the surface of the mold molding pattern part 72c Is formed and formed of a mold AF coating layer 72d coated with an anti-finger coat (AF) to prevent abrasion damage of the mold molding pattern portion 72c. When the UV molding pattern forming process 400 is performed, the glass disc (11) The UV resin injected is smooth, and the thickness of the UV molding pattern can be adjusted freely. When the jig mold 72 is separated from the glass disc 11 through the mold AF coating layer 72d, it is easily separated and mold molding is performed. Damage to the pattern portion 72c is prevented Uh it will be maximizing durability.

On the other hand, if the mold molding pattern portion 72c is formed by embossing the mold portion 72e in the UV molding pattern, a hologram pattern is formed through the UV molding pattern to maximize the decorative properties.

In addition, in the practice of the present invention, the pattern printing step 510 and the pattern printing step 510 for forming a printing pattern layer by printing a pattern with a thermosetting color ink on the upper surface of the UV molding pattern in the printing pattern forming process 500. ) After the printing multi-deposition step 520 to form a pattern multi-deposition layer 42 on the upper surface of the printing pattern layer of the glass sheet 12, multi-deposition except for the central transmission area of the glass cell 13 through which light is transmitted. A base printing step 530 forming a base printing layer 43 on the upper surface of the layer, and a glass cell 13 having no base printing layer 43 formed through the base printing step 530 are formed in the central transmission area. When the pattern multi-evaporation layer 42 is etched and removed as a pattern multi-etching step 540, a stable pattern pattern can be expressed.

In addition, in the practice of the present invention, the printing multi-deposition step 520 and the top surface of the pattern multi-deposition layer 42 to form the pattern multi-deposition layer 42 on the top surface of the UV molding pattern in the printing pattern forming process 500. A pattern printing step 510 of printing a pattern with a thermosetting color ink to form a printing pattern layer, and a base printing layer 43 on the upper surface of the multi-deposition layer excluding the central transmission area of the glass cell 13 through which light is transmitted. Forming the base printing step 530, the base printing step 530 through the base printing layer 43, the glass cell 13 is not formed, the pattern multi-deposited layer 42 formed in the central transmission area is etched and removed When the pattern multi-etching step 540 is performed, it is possible to implement a pattern pattern of various colors.

Meanwhile, when the base printing layer 43 formed through the base printing step 530 is formed narrower than the edge of the glass cell 13, the pattern of the UV molding pattern layer 60 is more vivid by the edge effect. It is expressed.

In addition, in the practice of the present invention, it is preheated by heating for 20-40 minutes in a hot air of 250-310 ° C, immersed in a potassium nitrate-enhancing solution of 390-450 ° C, and strengthened for 120-170 minutes, 100-170 ° C When the sheet strengthening process 300 consisting of a process of slow cooling in the fluid for 10 to 20 minutes at a temperature of 300 is performed, the surface stress of the glass sheet 12 is 650 to 850 Mpa, the strengthening depth is 30 to 45 µm, and the central stress is 100 to 130 Mpa. It is to be strengthened, and the cell cutting line 31 is clearly formed.

11 Glass disc 12 Glass sheet 13 Glass cell
21: photomask
31: cell cutting line
41: pattern printing layer 42: pattern multi-deposition layer
43: base printing layer
51: AR deposition layer 52: AF deposition layer
60: UV molding pattern layer
71: protective film
72: jig mold
72a: mold substrate 72b: mold pattern part
72c: mold molding pattern part 72d: mold AF coating layer 72e: mold embossing part
73: roller
100: cell cutting line processing
110: cell cutting DFR double-sided ramie stage 120: cell cutting exposure stage
130: cell cutting pre-baking step 140: cell cutting phenomenon step
150: cell cutting hard brake step
170: Cell cutting glass etching step
180: Cell cutting DFR peeling step 190: Cell cutting healing step
200: sheet cutting process
300: sheet strengthening process
400: UV molding pattern formation process
410: resin input step 420: jig mold rolling step
430: 1st UV curing step 440: Jig mold removal step
450: UV resin cleaning step 460: Second UV curing step
470: protective film removal step
500: printing pattern formation process
510: pattern printing step 520: printing multi-deposition step
530: base printing step 540: pattern multi-etching step
600: AR deposition process
700: AF deposition process
800: cell separation process

Claims (5)

In the method for manufacturing a window glass for a smartphone camera;
Cell cutting line processing to form a cell cutting line for cell separation on the glass disk, sheet cutting process to cut the glass disk into sheets made of a plurality of glass cells by laser, and surface stress of the glass sheet by potassium nitrate Sheet strengthening process to increase the cell cutting line clearly, UV molding pattern forming process to form a pattern on the window glass with UV molding pattern, printing to form a printing pattern through printing on the upper surface of the UV molding pattern Pattern formation process, AR deposition process to form an AR deposition layer to increase transmittance and decrease reflectivity on the rear transmission area of each glass cell, AF forming an AF deposition layer to prevent fingerprint and foreign material contamination on the front surface of each glass cell It consists of a deposition process, a cell separation process to push the glass cells of the sheet unit up or down to separate the cells along the cell cutting line;

The UV molding pattern forming process includes a protective film attaching step of attaching a protective film of 50 to 125 µm PET material on the opposite side of the UV molding pattern and a resin injection step of quantitatively introducing UV resin into the glass disc using an automatic dispenser. , Jig mold rolling step of flattening the UV resin by rolling at a pressure of 4 ~ 6㎏ / ㎠ after seating the jig mold on the top of the UV resin injected into the glass disc, and irradiating UV according to the transmission pattern formed on the jig mold The UV curing step to cure the rolled UV resin, the jig mold removal step to remove the jig mold from the top of the UV resin, the UV resin cleaning step to clean and remove the uncured UV resin, the UV resin cleaning step is damaged in the washing process It consists of a second UV curing step of completely curing the UV molding pattern by irradiating the surface of the UV molding pattern with UV, and a protective film removal step of removing the protective film attached to the glass disc.
The jig mold is a mold substrate made of a polycarbonate or PET light-transmitting plate material and a mold pattern portion for forming a UV blocking pattern for forming a UV molding pattern on the bottom of the mold substrate, for flattening and UV curing under the mold pattern portion A mold formed with a coating of AF (Anti Finger Coat) so that the mold molding pattern portion in contact with the UV resin and the surface of the mold molding pattern portion are smoothly peeled from the UV resin to be flattened and UV cured, and the wear of the mold molding pattern portion is prevented It consists of an AF coating layer;
The printing pattern forming process
A pattern printing step of forming a printed pattern layer by printing a pattern with a thermosetting color ink on the top surface of a UV molding pattern and a print multi-deposition step of forming a pattern multi-deposited layer on the top surface of the printed pattern layer of the glass sheet after the pattern printing step , Base printing step of forming a base print layer on the upper surface of the multi-deposited layer excluding the central transmit region of the glass cell through which light is transmitted, and through the base printing step, a glass cell in which the base print layer is not formed is formed in the central transmit region. It consists of a pattern multi-etching step of etching and removing the pattern multi-deposition layer, and a printing multi-deposition step of forming a pattern multi-deposition layer on the top surface of the UV molding pattern and a pattern printed with a thermosetting color ink on the top surface of the pattern multi-deposition layer. Pattern printing step of forming a pattern layer, the upper surface of the multi-deposited layer excluding the central transmission area of the glass cell through which light is transmitted Either one of the base printing step of forming the is printed layer, and the pattern multi-etching step of etching and removing the pattern multi-deposited layer formed in the central transmission region of the glass cell on which the base print layer is not formed through the base printing step. Consists of a process;
The pattern printing step is performed by printing a thermosetting black or color ink using a printing mask, and drying the hot air at 100 to 150 ° C. for 30 to 60 minutes. The printing mask is characterized by dimensional stability and a pattern printing portion of a glass sheet. Window glass manufacturing method for a smart phone camera having a UV molding pattern, characterized in that the non-printed part is made of a stainless print mask so that the non-printed part is clearly formed.

According to claim 1;
The cell cutting line processing process is a cell-cutting DFR double-sided laminating step of laminating a dry film photoresist (DFR) that is developed such that only the cell-cutting line forming portion of the glass disk is exposed by photoreaction on both sides of the glass disk. Through the cutting DFR double-sided laminating step, the cell-cutting exposure step of irradiating ultraviolet rays through a photomask according to the cell cutting line designed on both sides of the upper and lower surfaces of the glass plate on which the DFR is laminated, the DFR is adhered to the glass disc to develop and etch the process. Cell-cutting pre-baking step to press-close to prevent lifting of DFR, cell-cutting developing step to remove DFR, which is not exposed to ultraviolet light through the cell-cutting exposure step, weakened by the phenomenon through the cell-cutting developing step Cell cutting hard brake step of pressing the DFR in close contact with the glass disc, the glass source exposed through the cell cutting phenomenon step A laser cell cutting line processing step of forming a cell-cutting property of a certain depth with a laser by forming the cell cutting line forming surface of the cell, the surface where the cell cutting line is exposed through the laser cell cutting line processing step is melted with an etching solution to open a cell cutting groove. Cell cutting glass etching step to form, cell cutting DFR peeling step to remove DFR remaining on the glass disk by the peeling solution after the cell cutting glass etching step, and etching the glass disk in a low concentration of etching solution within 2 minutes to uniformly surface It consists of a cell cutting healing step;
The cell cutting healing step improves the roughness of the etched area roughly formed in the cell cutting glass etching step to increase the strength and improve the appearance quality. Window glass manufacturing method for a smartphone camera having a UV molding pattern, characterized in that it is made by healing etching in the etching solution.
According to claim 1;
Method for manufacturing a window glass for a smartphone camera having a UV molding pattern, characterized in that the mold molding pattern portion is formed by forming a mold embossing portion for embossing on a UV resin so that a hologram pattern is formed from the UV molding pattern.
According to claim 1;
In the base printing step, a thermosetting black or color ink is printed, and a hot air at 100 to 150 ° C. is dried for 30 to 60 minutes to form a base printing layer, but the outer edge of the base printing layer is a border of a glass cell to be separated. Window glass manufacturing method for a smart phone camera having a UV molding pattern, characterized in that it is formed smaller than 0.2mm inward.
According to claim 1;
The pattern multi-etching step is to etch and etch with a multi-layer formed in a portion where the base print layer is not formed by eroding in an alkaline etching solution at 40 to 70 ° C for 5 to 10 minutes, and the alkaline etching solution does not damage the surface of the glass sheet. Window glass manufacturing method for a smart phone camera having a UV molding pattern, characterized in that it is formed to have an acidity of .0 or more.

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