WO2016088982A1 - 커버글라스 인쇄 방법 - Google Patents
커버글라스 인쇄 방법 Download PDFInfo
- Publication number
- WO2016088982A1 WO2016088982A1 PCT/KR2015/008462 KR2015008462W WO2016088982A1 WO 2016088982 A1 WO2016088982 A1 WO 2016088982A1 KR 2015008462 W KR2015008462 W KR 2015008462W WO 2016088982 A1 WO2016088982 A1 WO 2016088982A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- printing
- pattern
- cover glass
- base plate
- layer
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/34—Printing on other surfaces than ordinary paper on glass or ceramic surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/14—Multicolour printing
Definitions
- the present invention relates to a cover glass printing method.
- the cover glass refers to glass provided on the outer surface of the liquid crystal to protect the light emitting body such as the LCD constituting the terminal liquid crystal.
- a design is applied to the bezel area of the cover part, in which it is common to print black ink to cover the wiring of the display panel, and the like, by applying printing such as black or white to the bezel area 100, Methods to add more luxurious designs have been developed one after another and are being applied in practice.
- EPG etching pattern glass
- MPG multi-pattern glass
- PPG print pattern glass
- FIG. 1 is a view showing a process flow chart of the prior art EPG method of the present invention
- Figure 2 is a view showing a process flow chart of the conventional MPG method of the present invention
- Figure 3 is a process of the PPG method of the prior art of the present invention It is a figure which shows a flowchart.
- the MPG method After masking to realize a specific pattern, a plurality of SiO2 and TiO2 layers are formed through vacuum deposition several times, and the thickness and the number of layers are adjusted so that only light having a specific wavelength is reflected. It is a way of implementing metal feeling.
- the metallic feeling means a surface property that makes diffuse reflection of light well on the surface.
- the PPG method after printing or transfer molding using a transparent ink, color is implemented by vacuum deposition on the entire glass and printing is performed.
- the glass surface is etched and masked in the same manner as the MPG, and then subjected to surface etching with a non-fluoric acid-based chemical to implement a predetermined pattern.
- the process goes through 16 steps
- the process goes through 15 steps
- the PPG method goes through the 11 steps. Therefore, the process is complicated and the process efficiency is not high. There is a problem that the required cost is high.
- Embodiments of the present invention have been made to solve the conventional problems as described above, the process is simpler than the prior art, low cost according to the line equipment and process performance, high yield, uniformly implement a variety of colors It is an object of the present invention to provide a cover glass printing method that can be used.
- a cover glass printing method may be provided in which the pattern print layer includes a time varying ink.
- a washing step of washing the glass base plate before the pattern printing step A screen printing step of forming a black matrix layer on the pattern print layer; A cleaning step of cleaning the base plate glass on which the black matrix layer is formed; And a vacuum deposition step of vacuum depositing an opposite side of the pattern print layer to form an AF layer.
- the pattern printing layer may be provided with a cover glass printing method is formed in the bezel area of the base plate glass.
- the printing of the cover glass is performed using a time-varying ink which has not been used in the related art, it is possible to realize a color pattern having a high yield and a uniform color difference even through a low cost and simple process. And, there is an effect that the implementation of the metal feeling is easy.
- FIG. 1 is a process flow diagram of a prior art EPG method of the present invention.
- FIG. 2 is a process flow diagram of the prior art MPG method of the present invention.
- FIG. 3 is a process flow diagram of the prior art PPG method of the present invention.
- FIG. 4 is a diagram illustrating each layer of the cover glass printed according to the cover glass printing method according to an embodiment of the present invention.
- FIG. 5 is a cross-sectional view illustrating a structure of the cover glass of FIG. 4.
- FIG. 6 is a flowchart illustrating a method of printing the cover glass of FIG. 4.
- FIG. 4 is a view showing each layer of the cover glass printed according to the cover glass printing method according to an embodiment of the present invention
- Figure 5 is a cross-sectional view showing the structure of the cover glass of FIG.
- the cover glass 1 printed according to the cover glass printing method according to the exemplary embodiment of the present invention may include a base plate 10, a pattern print layer 20, and a black matrix layer 30. And an AF layer 40.
- an AR layer in addition to the AF layer 40.
- the cover glass 1 may include all kinds of glass substrates, including window glass.
- the cover glass 1 may cover the entire front or rear surface of the mobile terminal, such as a window glass or a battery case.
- the cover glass 1 may be disposed on the front part or the rear part of the portable terminal, and the cover glass 1 may be applied to a camera window, a function button, and various decors.
- the camera window covers the camera module of the mobile terminal and exposes the lens of the camera.
- the cover glass 1 when the cover glass 1 is applied as a function button, it may be arranged to be the surface of the function button.
- the various deco may be all glass substrates arranged to have a decorative effect on the appearance of the mobile terminal, and may be, for example, surrounding the camera window.
- the cover glass 1 may include an opening.
- the opening may expose a camera lens, a function button, a sensor, and the like, and the present invention is not limited thereto, and may be for any component that can produce a decorative effect.
- the bezel region 100 indicates not only an edge region on the cover glass 1 but also a non-transmissive region responsible for a pattern or a decorative function, or an edge of a portion of the cover glass 1 for functional separation. It can mean one specific area.
- the base plate 10 has a function of protecting a display panel inside the terminal and transmitting a screen of the display panel.
- the base plate 10 may be glass, PMMA, or the like.
- a wiring (not shown), a speaker (not shown), a camera (not shown), etc. of the display panel may be positioned.
- the base plate 10 may be cut to a certain size depending on the intended use, and then the surface may be washed and dried.
- the base plate 10 may be a transparent resin such as a soda lime glass substrate, an alkali free glass substrate, a tempered glass substrate, or acrylic.
- the pattern print layer 20 may be formed through pattern printing, and may be formed in the bezel area 100 of one side of the base plate 10 (hereinafter, referred to as “back side”).
- the pattern print layer 20 may be formed while having a predetermined design. For example, shapes such as lines and figures may be repeatedly formed to represent geometric patterns such as hairlines or woven patterns.
- the pattern print layer 20 may include shapes such as symbols, numbers, and letters.
- time varying ink is applied as an ink material for printing the pattern print layer 20 on one surface of the base plate 10.
- the time-varying ink is an ink prepared based on an optically variable pigment (OVP) and based on a flake of a thin film optical interference device, and has a characteristic of exhibiting a rectangular appearance depending on the viewing angle.
- OVP optically variable pigment
- Ink is currently used as an effective copy protection means in banknotes and security documents.
- Methods for preparing such time-varying inks are disclosed in US Pat. No. 4,434,010, US Pat. No. 5,084,351, US Pat. No. 5,171,363, EP-A-0 227 423, and the like.
- These time-varying inks are mainly used to color the anti-counterfeiting patterns in the manufacture of banknotes, and have been applied to anti-counterfeiting elements including simple authentication messages that can be quickly and easily checked by the general public.
- the present inventors apply the time-varying ink to a pattern printing process for forming the pattern print layer 20, thereby newly developing a cover glass printing method according to a simple and low-cost process. It became.
- a time-varying ink it is possible to realize a pattern through a simple operation of ink printing without etching the surface, and to realize a metal feeling with only a single ink layer without having to deposit multiple layers to realize a metal feeling. There is.
- the black matrix layer 30 may be formed in the bezel area 100 on the rear surface where the pattern print layer 20 of the base plate 10 is formed, and may cover the pattern print layer 20.
- the black matrix layer 30 may be formed through reinforcement printing for the purpose of compensating pinholes generated in the background design printing, the logo printing, the wavelength filter printing, and the background design.
- An anti-finger (AF) layer 40 is formed on the opposite side of the back of the base plate 10 (hereinafter referred to as "front"), and is formed for the purpose of coating to prevent surface stains and foreign objects.
- an anti-reflection (AR) layer (not shown) may be further formed between the surface of the AF layer 40 or between the AF layer 40 and the base plate 10. The layer is formed for the purpose of coating to improve the transmittance by stacking the low refractive index material (SiO2) and high refractive index material (TiO2) in an overlap.
- FIG. 6 is a flowchart illustrating a method of printing the cover glass of FIG. 4.
- the cover glass printing method according to an embodiment of the present invention, the step of washing the base plate 10 (S10), the step of printing a pattern on the rear surface of the washed base plate (S20) ), Screen-printing the pattern-printed base plate 10 (S30), cleaning the printed base plate 10 (S40), AF (or the front surface of the cleaned base plate 10) AF and AR) to perform vacuum deposition to form the layer 40 (S50) and FVI step (S60).
- the cleaning step (S10) is to wash the surface of the base plate 10 corresponding to the raw material for manufacturing the cover glass 1 is a pattern formed.
- the base plate 10 may be supplied to a cleaning tank for cleaning to be dipped in alkaline chemicals of 5% concentration to perform chemical cleaning.
- alkaline chemicals In the case of the alkali chemicals, it can be prepared based on the alkaline cleaning stock solution composed of anionic surfactant and nonionic surfactant component to prevent the generation of bubbles.
- the process of rinsing chemicals by rinsing with high-purity distilled water is followed.
- the base plate 10 which has undergone the washing step S10 is subjected to pattern printing.
- the pattern printing step S20 is a step of performing basic design printing to print a predetermined pattern or pattern before the subsequent screen printing step S30.
- the pattern print layer 20 is formed by printing the surface of the base plate 10 by applying a time varying ink.
- the screen printing step S30 may include a total of four sub printing processes, and the four sub printing processes are as follows.
- a background design printing process in which a background design is printed according to a basic design of a product, a logo printing process for implementing a mirror effect using silver ink according to a customer's request at a specific position on the background design, and a color for driving an IR printing camera. It includes a wavelength filter printing process for implementing the filter unit and a reinforcement printing process for the purpose of preventing pinholes.
- the reinforcement printing process is a process in which pinholes are generally generated by a printing mechanism during screen printing, and a printing is performed to compensate for the generated pinholes based on a stochastic theory that the same pinholes do not occur at the same position.
- the base plate 10 may be washed through the cleaning step S40.
- This cleaning step (S40) proceeds with the purpose of removing the organic matter generated during printing. Specifically, the cleaning step (S40) proceeds in the order of degreasing, rinse, rinse, rinse, brush, drying.
- the cleaning step (S40) is different from the cleaning step (S10), in the case of the cleaning step (S10), if the chemical cleaning method of dipping the base plate 10 in the alkali chemicals, the cleaning step (S40) is a continuous inline process To wash away the debris on the surface of the base plate 10 in a physical manner.
- the cleaned base plate 10 may have an AF layer 40 (or an AR and an AF layer) formed on the front surface of the base plate 10 through a vacuum deposition step S50.
- the vacuum deposition step (S50) is a process of coating the surface of the base plate 10 by depositing by using a vacuum equipment, by thermally damaging the coating raw material using an electron beam to vaporize or sublimate the front of the base plate 10 The coating process may be performed.
- the AF coating for the purpose of preventing stains and foreign substances on the surface of the base plate 10 may be performed, and in some cases, the AR coating may be performed together with the AF coating.
- an FVI step S60 may be performed in which the base plate 10 coated on the front surface with the AF layer 40 (or AF and AR layers) is finally inspected.
- the FVI step (S60) is a step of performing a good / non-determination of scratches, stains, foreign matters, print defects, etc. by performing a reflection test and a transmission test at three wavelengths 1200Lux according to the selection criteria for each customer through the appearance inspection.
- the cover glass printing method by performing the pattern printing using a time-varying ink, the visibility improvement on the surface of the pattern print layer 20 compared with the conventional method, especially the PPG method Since the multi-coating process may be omitted, the process is cheaper and simpler than the conventional method, and thus the process efficiency is increased.
- it is possible to realize a metal feeling through a printing process using ink without having to deposit a plurality of layers to realize a metal feeling it is possible to increase the yield of the cover glass up to 80%, a variety of colors with a uniform color difference
- the advantage is that it is possible to apply.
Abstract
Description
Claims (3)
- 커버글라스에 포함되는 베이스 플레이트의 표면에 기 설정된 패턴 또는 문양을 인쇄하여 패턴 프린트층을 형성하는 패턴 인쇄 단계를 포함하고,상기 패턴 인쇄 단계에서 시변각 잉크가 사용되어 상기 패턴 프린트층이 시변각 잉크를 포함하는 커버글라스 인쇄 방법.
- 제 1 항에 있어서,상기 패턴 인쇄 단계 전에 상기 베이스 플레이트를 세척하는 세척 단계;상기 패턴 프린트층 상에 블랙 매트릭스 층을 형성하는 스크린 인쇄 단계;상기 블랙 매트릭스 층이 형성된 상기 베이스 플레이트를 세정하는 세정 단계; 및상기 패턴 프린트층의 반대측 면을 진공 증착하여 AF 층을 형성하는 진공 증착 단계를 더 포함하는 커버글라스 인쇄 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 패턴 프린트층은 상기 베이스 플레이트의 베젤 영역에 형성되는 커버글라스 인쇄 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020140170372A KR20160066249A (ko) | 2014-12-02 | 2014-12-02 | 커버글라스 인쇄 방법 |
KR10-2014-0170372 | 2014-12-02 |
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WO2016088982A1 true WO2016088982A1 (ko) | 2016-06-09 |
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PCT/KR2015/008462 WO2016088982A1 (ko) | 2014-12-02 | 2015-08-12 | 커버글라스 인쇄 방법 |
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WO (1) | WO2016088982A1 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106708185A (zh) * | 2016-11-30 | 2017-05-24 | 维沃移动通信有限公司 | 一种移动终端3d玻璃盖板及其制造方法 |
CN114273984A (zh) * | 2021-11-15 | 2022-04-05 | 杭州万程科技有限公司 | 一种炫彩电脑键盘触控板用盖板玻璃的制作方法 |
CN116282956A (zh) * | 2023-02-28 | 2023-06-23 | 合肥金龙浩科技有限公司 | 一种af镀层玻璃组装装饰件的工艺 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111212162A (zh) * | 2020-01-17 | 2020-05-29 | 东莞市美尚美电子科技有限公司 | 一种具有金属色手机背板的制造方法 |
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KR100587621B1 (ko) * | 2004-12-16 | 2006-06-08 | 한국조폐공사 | 시변각 복합 잠상을 갖는 위·변조방지용 인쇄물 및 이의제조 방법 |
KR101336936B1 (ko) * | 2013-03-05 | 2013-12-03 | 크루셜텍 (주) | 커버글라스의 제조 방법 |
KR101380802B1 (ko) * | 2012-05-02 | 2014-04-07 | 주식회사 송산 | 불투명창에 요철패턴이 표현되는 모바일 데코 글라스 및 이의 제조방법 |
KR101387358B1 (ko) * | 2013-10-02 | 2014-04-21 | (주)에스티에스 | 글래스 표면에 패턴을 인쇄하는 인쇄장치 |
KR101425364B1 (ko) * | 2013-12-26 | 2014-08-05 | 크루셜텍 (주) | 커버글라스 및 이의 제조방법 |
-
2014
- 2014-12-02 KR KR1020140170372A patent/KR20160066249A/ko not_active Application Discontinuation
-
2015
- 2015-08-12 WO PCT/KR2015/008462 patent/WO2016088982A1/ko active Application Filing
Patent Citations (5)
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KR100587621B1 (ko) * | 2004-12-16 | 2006-06-08 | 한국조폐공사 | 시변각 복합 잠상을 갖는 위·변조방지용 인쇄물 및 이의제조 방법 |
KR101380802B1 (ko) * | 2012-05-02 | 2014-04-07 | 주식회사 송산 | 불투명창에 요철패턴이 표현되는 모바일 데코 글라스 및 이의 제조방법 |
KR101336936B1 (ko) * | 2013-03-05 | 2013-12-03 | 크루셜텍 (주) | 커버글라스의 제조 방법 |
KR101387358B1 (ko) * | 2013-10-02 | 2014-04-21 | (주)에스티에스 | 글래스 표면에 패턴을 인쇄하는 인쇄장치 |
KR101425364B1 (ko) * | 2013-12-26 | 2014-08-05 | 크루셜텍 (주) | 커버글라스 및 이의 제조방법 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106708185A (zh) * | 2016-11-30 | 2017-05-24 | 维沃移动通信有限公司 | 一种移动终端3d玻璃盖板及其制造方法 |
CN106708185B (zh) * | 2016-11-30 | 2020-04-07 | 维沃移动通信有限公司 | 一种移动终端3d玻璃盖板及其制造方法 |
CN114273984A (zh) * | 2021-11-15 | 2022-04-05 | 杭州万程科技有限公司 | 一种炫彩电脑键盘触控板用盖板玻璃的制作方法 |
CN116282956A (zh) * | 2023-02-28 | 2023-06-23 | 合肥金龙浩科技有限公司 | 一种af镀层玻璃组装装饰件的工艺 |
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