KR20090016925A - Spin-window cover structure - Google Patents
Spin-window cover structure Download PDFInfo
- Publication number
- KR20090016925A KR20090016925A KR1020070081268A KR20070081268A KR20090016925A KR 20090016925 A KR20090016925 A KR 20090016925A KR 1020070081268 A KR1020070081268 A KR 1020070081268A KR 20070081268 A KR20070081268 A KR 20070081268A KR 20090016925 A KR20090016925 A KR 20090016925A
- Authority
- KR
- South Korea
- Prior art keywords
- pattern
- plate
- window plate
- plastic
- film
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/10—Applying flat materials, e.g. leaflets, pieces of fabrics
- B44C1/105—Applying flat materials, e.g. leaflets, pieces of fabrics comprising an adhesive layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/10—Applying flat materials, e.g. leaflets, pieces of fabrics
- B44C1/14—Metallic leaves or foils, e.g. gold leaf
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Laminated Bodies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
In the manufacture of the window of the mobile phone, in the manufacture of the window containing the spin, the production of the injection-formed spin is formed on the surface through the injection, the adhesion of the acrylic film on the opposite side where the spin is formed, the spin is In the manufacture of spin-shaped cell phone windows, including the process of depositing metal or oxide on the surface, the process of decorating the periphery of the display through printing, and the cutting to the appropriate size to be mounted on the cell phone through processing. It is about.
Description
1A is a plan view showing a display and a window plate of a mobile phone.
1B is a cross-sectional view illustrating a display and a window plate of a mobile phone.
2A is a plan view of the window plate of the spin structure.
2B is a cross-sectional view of the window plate of the spin structure.
3 is a cross-sectional view showing a conventional process of forming a spin on the plastic film of the window plate material using the UV curable resin.
4 shows a plan view of a stamp on which a pattern is formed to be mounted on a mold, and a cross-sectional view of a mold structure capable of producing a polycarbonate plate on which a pattern is formed by injection.
5 is a cross-sectional view showing a process of forming a pattern on a transparent polycarbonate plate through injection and a plan view of the spin structure made thereby.
6 is a cross-sectional view illustrating a process of bonding a polycarbonate plate having a pattern formed thereon with an acrylic film having a surface hard coating.
FIG. 7A is a cross-sectional view illustrating the deposition or sputtering of a metal or metal oxide on a patterned surface of the window plate.
FIG. 7 (b) is a cross-sectional view illustrating the printing surface of the structure of FIG. 7 (a) formed on a portion to be decorated instead of the portion where the display is visible by a method such as silk printing.
<Description of the code | symbol about the principal part of drawing>
12: window plate 22: spin
41: stamp 42: injection mold
58: patterned polycarbonate plate 62: UV curing adhesive
63: acrylic film 65: window plate
72: vapor deposition or sputtering 74: decoration part printing
The present invention relates to the manufacture of a window plate for use in a mobile phone.
The window plate is a transparent plate that protects the display of the phone, and the display exterior is decorated.
1 shows a window plate.
In the plan view shown in FIG. 1A, the
Usually, the window plate uses an acrylic film that has been hard coated, a laminated film of an acrylic film and a polycarbonate film, and a glass material.
In the case of lamination of acrylic film and polycarbonate film, the hard coated acrylic film is directed toward the exterior.
1 (b) shows a cross-sectional view of the mobile phone.
As can be seen from this structure, the
In such window plates, the visible part of the display is usually transparent, but the exterior part of the display is decorated.
Alternatively, in the case of a transparent and optical decoration such as spin, the spin decoration may be formed as a whole.
When processing the spin shape like the keypad of a Motorola laser phone, light is reflected and rotates according to the viewing angle.
2 shows a window plate of such a spin structure.
According to the plan view shown in (a) of FIG. 2, the
These spins are usually triangular in cross section and are formed in spiral or concentric circles.
FIG. 2B shows a cross-sectional view of the spin structure formed in a triangular form.
In the lower portion of the transparent
This projecting material is made of transparent UV resin or the like, and the size thereof is about 10 to 30 micrometers.
Conventionally, in order to form such a spin structure on a window plate, UV curable resin was used.
UV curable resin is an ultraviolet curable resin that is curable when irradiated with ultraviolet rays while being liquid at room temperature.
3 is a cross-sectional view illustrating a process of forming a spin on a plastic film which is a window plate material using a UV curable resin.
As a plastic film, a transparent acrylic film is usually used or a film obtained by laminating an acrylic film and a polycarbonate film (PC film) is used.
In this case, in most cases, a film having a hard coating of 4H or more is used for the acrylic film.
FIG. 3A shows a cross section of the
Since pattern formation such as spin is performed on the opposite side of the hard-coated film, the pattern formation surface is upper in this drawing.
The state which apply | coated the UV
The UV curable material in the liquid state before curing is applied by silk printing or dipping.
3 (c) shows a
The material of the stamp may be a nickel stamp or a film having a pattern formed thereon.
3 (d) shows a process of curing the UV curable material by irradiating
The UV curable material of the liquid is cured in a few seconds to several tens of seconds when it is irradiated with ultraviolet rays to solidify.
In FIG. 3E, a
The UV curable material in the film is formed of a
In actual use, as shown in (f) of FIG. 3, the surface of the
The problem with the method of forming a pattern on such a conventional film is that a lot of defects occur during the transfer process when forming a pattern having a size of about 10 to 30 micrometers.
In particular, during the curing process, the UV curable material adheres to the stamp, resulting in foreign matter, and the pattern is not properly formed during the next transfer.
In patterns such as spins or holograms formed on the window plate, the pattern is finer, so that defects increase further when transferring.
Therefore, the present invention is devised to solve the above problems, and relates to a structure and a process capable of minimizing defects when forming a fine pattern.
The present invention relates to forming a fine pattern on a window plate in the manufacture of a window plate of a mobile phone, and to a process and a structure for increasing the surface hardness to 4H or more.
In the case of formation of a fine pattern by joining heterogeneous materials by UV curing, which is a conventional method, problems such as a defective rate and difficulty of pattern formation become problems.
In the present invention, the micropattern is formed directly on the shape of a plastic sheet rather than bonding as a heterogeneous material, and is a structure for adhering a separate film for surface protection.
In detail, an injection molding mold in which a fine pattern is formed in a mold is molded from a transparent polycarbonate material to manufacture a polycarbonate plate by injection molding, and a fine pattern of a mold is formed on the polycarbonate plate. The acrylic film is bonded to the opposite side where the fine pattern of the polycarbonate plate is formed, and the upper side of the window plate on the opposite side to the side to which the acrylic film is bonded is a hard coating structure.
The back surface of the fine pattern formed window plate is formed again through the deposition and printing to form a window decoration.
Looking at the manufacturing process and the structure as shown in the drawing as follows.
4 is a cross-sectional view of a mold structure in which a polycarbonate plate having a pattern formed thereon can be produced by injection, and a plan view of a stamp in which a pattern is formed and mounted on the mold is shown.
In FIG. 4, the
The material of the stamp is usually formed by nickel plating, and the method of forming the original plate by plating is most common.
The production of the original plate is generally performed by a method of transferring a pattern through nickel plating on a plate made of phosphor bronze or the like or by etching using a photoresist by a semiconductor process.
In Fig. 4, only the space in which the plastic injection is injected is shown in cross-section in the cross-sectional view of a mold structure in which a patterned stamp is mounted, and the actual mold structure is formed in a general injection mold structure.
5 illustrates a process of forming a pattern on the transparent polycarbonate plate through injection.
The
The temperature is raised to inject the
The injected plastic becomes a
When the mold is separated in this state (57), the
As shown in the
The plastic material may be acrylic resin or other transparent resin in addition to polycarbonate, but in general, polycarbonate resin is most advantageous in terms of strength.
FIG. 6 illustrates a process of bonding a polycarbonate plate having a pattern formed thereon with an acrylic film having a surface hard coating.
After applying the UV
The hardened state is a
In the window plate to protect the display unit of the mobile phone,
In the formation of the pattern structure processed to a window plate,
The metal plate such as aluminum, nickel, chromium, silver, gold, or titanium oxide (TiO2), aluminum oxide (Al2O3), or oxide is formed on the patterned surface of the window plate on which the pattern of spin or hologram or general image form is formed. A metal oxide such as silicon (SiO 2) is coated by vapor deposition or sputtering to make the pattern more visible.
7 shows the process involved in this.
As shown in FIG. 7A, a metal or metal oxide may be formed on the pattern surface of the
Typical coating layers have a thickness ranging from 100 angstroms to 5000 angstroms, and the color varies depending on the coating thickness.
In this way, the printed window plate may be formed on the portion to be decorated instead of the surface where the display is visible, such as silk printing, as shown in (b) of FIG. 7.
Through silk printing, various colors can be produced in the decoration department.
The non-printable part must be etched, so the metal or oxide is etched.
The window plate according to the present invention is a structure in which a fine pattern is formed through injection and a high hardness acrylic film is bonded, and the fine pattern is precise and the defect rate is small compared to the method of making a fine pattern using UV curable resin, so that the mass production is performed. It is easy and cost is reduced.
As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070081268A KR20090016925A (en) | 2007-08-13 | 2007-08-13 | Spin-window cover structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070081268A KR20090016925A (en) | 2007-08-13 | 2007-08-13 | Spin-window cover structure |
Publications (1)
Publication Number | Publication Date |
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KR20090016925A true KR20090016925A (en) | 2009-02-18 |
Family
ID=40685824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020070081268A KR20090016925A (en) | 2007-08-13 | 2007-08-13 | Spin-window cover structure |
Country Status (1)
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KR (1) | KR20090016925A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140140961A (en) * | 2013-05-30 | 2014-12-10 | 삼성디스플레이 주식회사 | Window for display device and display device including the window |
KR20160075407A (en) * | 2013-03-05 | 2016-06-29 | 크루셜텍 (주) | Cover glass and method of manufacturing the same |
-
2007
- 2007-08-13 KR KR1020070081268A patent/KR20090016925A/en not_active Application Discontinuation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160075407A (en) * | 2013-03-05 | 2016-06-29 | 크루셜텍 (주) | Cover glass and method of manufacturing the same |
KR20160075410A (en) * | 2013-03-05 | 2016-06-29 | 크루셜텍 (주) | Cover glass and method of manufacturing the same |
KR20160075411A (en) * | 2013-03-05 | 2016-06-29 | 크루셜텍 (주) | Cover glass and method of manufacturing the same |
KR20140140961A (en) * | 2013-05-30 | 2014-12-10 | 삼성디스플레이 주식회사 | Window for display device and display device including the window |
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