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WO2016043572A1 - Verre protecteur et son procédé de fabrication - Google Patents

Verre protecteur et son procédé de fabrication Download PDF

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Publication number
WO2016043572A1
WO2016043572A1 PCT/KR2015/009899 KR2015009899W WO2016043572A1 WO 2016043572 A1 WO2016043572 A1 WO 2016043572A1 KR 2015009899 W KR2015009899 W KR 2015009899W WO 2016043572 A1 WO2016043572 A1 WO 2016043572A1
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WO
WIPO (PCT)
Prior art keywords
glass substrate
pattern portion
smog
glass
pattern
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2015/009899
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English (en)
Korean (ko)
Inventor
조형식
권순성
박경선
박광호
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crucialtec Co Ltd
Original Assignee
Crucialtec Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020140124910A external-priority patent/KR20160033982A/ko
Priority claimed from KR1020140154753A external-priority patent/KR101594877B1/ko
Priority claimed from KR1020150130808A external-priority patent/KR101707392B1/ko
Application filed by Crucialtec Co Ltd filed Critical Crucialtec Co Ltd
Publication of WO2016043572A1 publication Critical patent/WO2016043572A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Definitions

  • the present invention relates to a cover glass and a method for manufacturing the same, and more particularly, to a cover glass and a method for manufacturing the same, which can be slimmed, improved in strength, and provides a fine texture, and has fine pattern precision.
  • design elements such as forming various colors or patterns on the bezel area of the cover part, in which black or white ink is generally printed to cover the wiring of the display panel, are added.
  • FIG. 1 is a plan view showing a conventional cover glass
  • Figure 2 is a cross-sectional view of the "A" portion of FIG.
  • the conventional cover glass 10 is polyethylene coated with an optically clear adhesive (OCA) 30 on one surface of the glass substrate 20.
  • OCA optically clear adhesive
  • a terephthalate (PET) film 40 is provided.
  • a UV (Ultraviolet) pattern 50 is formed on the PET film 40.
  • the UV pattern 50 is coated with a layer 60 to realize color, and a black matrix layer 70 is formed on the layer 60.
  • the PET film 40 and the OCA 30 for adhering the PET film 40 to the glass substrate 20 are further provided, and as the UV pattern 50 is formed on the PET film 40,
  • the conventional cover glass 10 has a problem that it is difficult to implement slimming.
  • the conventional cover glass 10 is not provided with a layer for implementing a texture, there is a limit to increase the aesthetics of the cover glass 10.
  • the surface of the cover glass is corroded with a corrosive solution or roughly processed in a sand blast (Sand Blast) method to form a textured pattern to make the surface texture luxurious The element is added.
  • FIG. 3 is a plan view illustrating another conventional cover glass
  • FIG. 4 is an enlarged view of the portion “B” of FIG. 3
  • FIG. 5 is an enlarged cross-sectional view of the portion “C” of FIG. 3.
  • a portion (for example, a bezel region) to form a pattern on the glass substrate 20a is opened, and other portions thereof.
  • the corrosion pattern 80a is formed in the open portion through a dipping method in which the glass substrate 20a is entirely immersed in the etchant in the protected state.
  • both the edge 21a of the glass substrate 20a and the edge 23a of the opening 22a formed through the glass substrate 20a are corroded. Accordingly, there is a problem in that fine cracks, chippings, etc. occur in the edge portions 21a and 23a, and the strength of the edge portions 21a and 23a decreases.
  • a portion (for example, a bezel area) to be formed on the glass substrate is opened by a silk screen printing method, and the pattern is formed by sandblasting the open portion.
  • the pattern is formed by sandblasting the open portion.
  • the corrosion pattern 80a may not be uniformly formed. That is, the corrosion pattern 80a formed on the surface of the glass substrate 20a has a form in which the portion 81a partially corroded and the portion 82a partially corroded are mixed.
  • Such a phenomenon may be found in the form of the corrosion pattern 80a formed on the glass substrate 20a and the process for corroding the surface of the glass substrate 20a.
  • the exposed portion is corroded through a dipping method.
  • this dipping method when the pattern to be formed is formed in a large area, that is, when the area of the portion to be corroded is large, the time when the corrosive liquid is in contact with the portion to be corroded, or the corrosion liquid which is in contact with the portion to be corroded
  • the degree of corrosion can be affected by many factors, such as And, as a result of this, it is determined that a phenomenon in which uniform corrosion does not occur overall on the corrosion pattern occurs.
  • the pattern is not subjected to uniform corrosion, it may cause diffuse reflection of light, and thus, anti-glare effect, which is one of the effects to be obtained through the corrosion pattern, may be reduced.
  • anti-glare effect which is one of the effects to be obtained through the corrosion pattern.
  • the corrosion is not uniform in the pattern is not only difficult to implement the luxury of the surface texture through a soft sparkling feeling, but also a problem that hurts the aesthetics, such as stains appear.
  • the fine particles of sand will give a physical impact on the entire surface of the glass substrate. Such an impact may cause micro cracks in the glass substrate, which may cause a problem of lowering the strength of the glass substrate.
  • the technical problem to be achieved by the present invention is to provide a cover glass and a manufacturing method thereof that can be made slim, improved strength, high-quality texture, fine pattern precision.
  • an embodiment of the present invention a glass substrate; And it provides a cover glass comprising a smog pattern portion formed in a fine concavo-convex shape on one surface of the glass substrate.
  • the smog pattern portion may have a basic region consisting of the surface of the glass substrate, and a fine photosensitive region formed on the surface of the glass substrate.
  • a plurality of fine photosensitive regions may be formed in the smog pattern portion, and each of the fine photosensitive regions may form an independent photosensitive region on the surface of the glass substrate.
  • each of the minute photosensitive region may be formed in the same shape and size.
  • the micro-photosensitive region may be formed to have the same interval between the micro-photosensitive region adjacent to each other.
  • the fine photosensitive region may be formed such that the distance between the fine photosensitive region adjacent to each other increases in one direction.
  • one surface of the glass substrate may include an offset portion formed in a predetermined width along the outer edge of the glass substrate and the edge of the opening formed through the glass substrate.
  • the offset portion is made of one surface of the glass substrate, it may form a boundary with the smog pattern portion.
  • the smog pattern portion may be formed by corrosion or sand blast.
  • the pattern portion may be part of the other surface of the glass substrate or may be formed intaglio on the other surface of the glass substrate.
  • it may include an additional pattern portion formed on the other surface of the glass substrate, and a second color layer formed on the additional pattern portion.
  • an embodiment of the present invention a glass substrate; A pattern portion formed in an intaglio on one surface of the glass substrate; A smog pattern portion formed in a fine concavo-convex shape on the other surface of the glass substrate; A first color layer provided in the smog pattern part to implement color; And it provides a cover glass including a printing layer provided to cover the first color layer.
  • one embodiment of the present invention is a glass substrate having one surface formed flat; A pattern portion formed intaglio on the other surface of the glass substrate; A smog pattern portion formed in a fine concavo-convex shape on the other surface of the glass substrate; A first color layer provided on the pattern part to implement color; And it provides a cover glass comprising a printing layer provided to cover the first color layer and the smog pattern portion.
  • an embodiment of the present invention provides a method for manufacturing a cover glass comprising the step of providing a smog pattern portion formed in a fine concavo-convex shape on one surface of the glass substrate.
  • the step of preparing the smog pattern portion is to open the region to form a pattern on one surface of the glass substrate, the edge of one surface of the glass substrate and the opening formed through the glass substrate.
  • the preparing of the resist film may include applying a photoresist ink or a photosensitive film on one surface of the glass substrate, arranging a mask pattern on an upper surface of the glass substrate, and exposing the photoresist film. And developing to open only a region to form the pattern.
  • the step of removing the edge of the glass substrate, the edge of the opening and the fine cracks of the smog pattern portion between the step of forming the smog pattern portion and the step of providing the offset portion May be included.
  • the offset portion is made of one surface of the glass substrate, it may form a boundary with the smog pattern portion.
  • the smog pattern portion is formed by using corrosion or sand blast on one surface of the glass substrate, after forming the smog pattern portion, the resist film is coated on the other surface of the glass substrate and exposed And forming a pattern portion through development, forming a first color layer on the pattern portion, and forming a printing layer to cover the other surface of the first color layer and the glass substrate.
  • the step of forming the pattern portion, the step of forming a photoresist film by applying an acid-resistant photoresist ink on the glass substrate to a thickness of 10 ⁇ 20 ⁇ m, and on the upper side of the photoresist film may include disposing a mask pattern and exposing and developing the acid resistant photoresist film.
  • the pattern portion in the forming of the pattern portion, may be made of a portion of the other surface of the glass substrate or may be formed intaglio on the other surface of the glass substrate.
  • the pattern portion formed intaglio on the other surface of the glass substrate may be formed by the surface of the glass substrate is corroded by a non-fluoric acid-based corrosion solution.
  • a fine photosensitive region may be formed using a corrosion solution, and the smog pattern portion may form a pattern including a portion in which corrosion is performed and a portion in which corrosion is not performed.
  • the smog pattern portion can form a uniform corrosion as a whole can implement the luxury of the surface texture through a soft sparkling feeling, it can also provide a good level of anti-glare effect.
  • the resist film covering a part of the surface of the glass substrate can reduce the impact applied to the glass substrate, The decrease in strength of the substrate can be reduced.
  • the pattern for providing the smog pattern portion and the offset portion on the glass substrate is implemented by using a photolithography technique, fine dimension adjustment is possible, and thus, conventional silk screen printing. It is possible to form a precise pattern than to form a pattern using.
  • the offset portion is not applied to the corrosion or sand blasting process is formed with a predetermined width along the outer edge of the glass substrate and the edge of the opening, the strength of the glass substrate can be maintained. have.
  • a pattern portion may be formed on one surface of the glass substrate through corrosion, and a color layer may be provided on the pattern portion.
  • a smog pattern portion through corrosion on one surface of the glass substrate, and forming a pattern on the other surface of the glass substrate, it is possible to form a textured pattern and a three-dimensional pattern of the cover glass.
  • 1 is a plan view showing a conventional cover glass.
  • FIG. 2 is a cross-sectional view of part “A” of FIG. 1.
  • 3 is a plan view showing another conventional cover glass.
  • FIG. 4 is an enlarged view of a portion “B” of FIG. 3.
  • FIG. 5 is an enlarged cross-sectional view illustrating the portion “C” of FIG. 3.
  • FIG. 6 is a plan view showing a cover glass according to a first embodiment of the present invention.
  • FIG. 7 is an enlarged example of part “D” of FIG. 6.
  • FIG. 8 is a cross-sectional view taken along the line E-E of FIG.
  • 9 and 10 are enlarged exemplary views showing a part of the smog pattern portion of the cover glass according to the first embodiment of the present invention.
  • FIG. 11 is a flowchart illustrating a method of manufacturing a cover glass according to a first embodiment of the present invention.
  • FIG. 12 is an exemplary view showing a manufacturing process of the cover glass according to the first embodiment of the present invention.
  • FIG. 13 is an exemplary view showing a smog pattern portion of a cover glass according to a second embodiment of the present invention.
  • FIG. 14 is a cross-sectional view taken along the line G-G in FIG.
  • 15 is a plan view showing a cover glass according to a third embodiment of the present invention.
  • FIG. 16 is an enlarged view of a portion “H” of FIG. 15.
  • 17 is a cross-sectional view taken along the line I-I of FIG.
  • FIG. 18 is a flowchart illustrating a method of manufacturing a cover glass according to a third embodiment of the present invention.
  • 19 is an exemplary view showing a manufacturing process of a cover glass according to a third embodiment of the present invention.
  • FIG. 20 is a cross-sectional view showing a cover glass according to a fourth embodiment of the present invention.
  • 21 is an exemplary view showing a manufacturing method of a cover glass according to a fourth embodiment of the present invention.
  • FIG. 22 is an exemplary view showing a manufacturing method capable of implementing a plurality of colors in a cover glass according to a fourth embodiment of the present invention.
  • FIG. 23 is a cross-sectional view illustrating a cover glass according to a fifth embodiment of the present invention.
  • 24 is an exemplary view showing a manufacturing method of a cover glass according to a fifth embodiment of the present invention.
  • 25 is an exemplary view showing a manufacturing method capable of implementing a plurality of colors in a cover glass according to a fifth embodiment of the present invention.
  • 26 is a cross-sectional view illustrating a cover glass according to a sixth embodiment of the present invention.
  • FIG. 27 is a cross-sectional view illustrating a cover glass according to a seventh embodiment of the present invention.
  • FIG. 28 is an exemplary view showing a manufacturing method of a cover glass according to a seventh embodiment of the present invention.
  • FIG. 6 is a plan view showing a cover glass according to a first embodiment of the present invention
  • FIG. 7 is an enlarged view of section “D” of FIG. 6
  • FIG. 8 is a sectional view taken along line EE of FIG. 7
  • FIGS. 10 is an enlarged exemplified diagram illustrating a part of a smog pattern portion of a cover glass according to the first embodiment of the present invention.
  • the cover glass 100 may include a glass substrate 200 and a smog pattern portion 300.
  • the cover glass may include all kinds of glass substrates including window glass.
  • the cover glass may cover the entire front or rear side of the mobile terminal, such as a window glass or a battery case.
  • the cover glass may be disposed on a part of the front side or a part of the rear side of the portable terminal.
  • the cover glass may be applied to a camera window, a function button, and various decorative parts.
  • the camera window may cover the camera module of the mobile terminal and expose the lens of the camera.
  • the cover glass When the cover glass is applied as a function button, the cover glass may be disposed to be the surface of the function button.
  • the various decorative parts 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 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 glass substrate 200 may protect the display panel inside the portable terminal and transmit the screen of the display panel.
  • the glass substrate 200 may be cut to a predetermined size according to the intended use, and then the surface may be washed and dried.
  • the glass substrate 200 may be a glass material such as a soda lime glass substrate, an alkali free glass substrate, or a tempered glass substrate, and may be expanded to include a transparent resin material such as acrylic.
  • the smog pattern portion 300 may be formed on the surface 201 of the glass substrate 200, and the smog pattern portion 300 may have a basic region 310 and a fine photosensitive region 320.
  • the surface 201 of the glass substrate 200 may be one or more of one surface and the other surface of the glass substrate 200.
  • the smog pattern portion 300 may be formed on one surface of the glass substrate 200 or both surfaces thereof.
  • the basic region 310 may be formed of the surface 201 of the glass substrate 200, and the fine photosensitive region 320 may be formed on the surface 201 of the glass substrate 200. That is, the basic region 310 may be formed of the surface 201 of the glass substrate 200 which is not subjected to the photoresist treatment. Therefore, the smog pattern unit 300 may form a pattern including a portion where the photosensitive treatment is performed and a portion where the photosensitive treatment is not performed.
  • the fine photosensitive region 320 may be formed through any one of corrosion and sand blast. Here, photosensitization may be interpreted to mean reducing reflection of light.
  • the reflection of light may be reduced than in the basic region 310 including the surface 201 of the glass substrate 200. Therefore, when the light is applied to the glass substrate 200 under the same conditions, the micro-photosensitive region 320 may be blurred or clouded more than the basic region 310, and may provide a softly shiny effect.
  • Formation of the fine photosensitive region 320 may be obtained by using a corrosion solution or by using a sand blast process.
  • the fine photosensitive region 320 may be a corrosion region formed by corrosion of the surface 201 of the glass substrate 200.
  • the fine photosensitive region 320 may be a portion in which the surface 201 of the glass substrate 200 is worn by sand sprayed.
  • the fine photosensitive region 320 will be described with reference to a case in which the corrosion process is formed.
  • a plurality of fine photosensitive regions 320 may be formed in the smog pattern portion 300, and each of the fine photosensitive regions 320 may form an independent corrosion region on the surface 201 of the glass substrate 200. .
  • Each fine photosensitive region 320 may be formed in the same shape and size.
  • the fine photosensitive region 320 may be formed in a fine size, and the size of the fine photosensitive region 320 is not limited to a specific range.
  • the size of the fine photosensitive region 320 By finely forming the size of the fine photosensitive region 320, it is possible to reduce the probability of occurrence of portions having different depths of corrosion in one fine photosensitive region 320 or areas of portions having different depths of corrosion. As a result, the difference in depth of each of the fine photosensitive regions 320 present in the smog pattern portion 300 may be reduced. When the smog pattern portion 300 is viewed as a prerequisite, the depth of the fine photosensitive region 320 may be reduced. It may be formed to some degree uniformly.
  • the reflection of light in the smog pattern portion 300 is performed. Can be made stably. That is, in the cover glass according to the present exemplary embodiment, some of the light incident on the smog pattern unit 300 may be reflected by the basic region 310 formed of the surface 201 of the glass substrate 200. The basic region 310 may form a single region connected without being disconnected in the smog pattern portion 300. Therefore, the diffuse reflection of light can be reduced and the strength of the glass substrate can be maintained uniformly than in the conventional corrosion pattern 80a (see FIG. 5) that erodes the entire smog pattern portion.
  • fine photosensitive Diffuse reflection in region 320 may also be reduced than in conventional corrosion pattern 80a (see FIG. 5). That is, in the related art, since the entire glass substrate is immersed in the corrosive liquid, the degree of corrosion may be changed even by the minute flow of the corrosive liquid. Thus, a wave pattern similar to the flow of the corrosive liquid may be observed on the corroded glass substrate. Such fringes may appear as blots.
  • the cover glass according to the present embodiment since the corroded areas are formed into fine regions, the generation area of the fringes due to the flow of the corrosive liquid may be reduced. In addition, even if a wave pattern is generated in the corrosion area due to the flow of the corrosion solution, since the size of the corrosion area is minute and is present in a plurality of corrosion areas, the staining display can be minimized because it is not observed in a connected wave pattern.
  • the size and depth of the fine photosensitive region 320 may be uniformly formed in the same manner as when the fine photosensitive region 320 is used.
  • the cover glass according to the present embodiment since the area colliding with the sand particles is reduced compared to the conventional method of spraying sand on the front surface of the glass substrate, the physical impact applied to the glass substrate 200 is reduced. As a result, the strength of the glass substrate 200 can be maintained at a desired level, and the occurrence of fine cracks can be minimized.
  • the cover glass according to the present embodiment can effectively implement the prevention of diffuse reflection or the reduction of diffuse reflection in the smog pattern portion 300, and can also effectively reduce the unevenness that may be formed in the corrosion process. And through this, the cover glass can realize the luxury of the surface texture through the soft sparkling feeling, it can also provide a good level of anti-glare effect.
  • each of the minute photosensitive regions 320 may be formed to have the same distance between the adjacent minute photosensitive regions 320, whereby the minute photosensitive regions 320 are formed on the surface 201 of the glass substrate 200. It can be distributed evenly.
  • the spacing between the fine photosensitive regions adjacent to each other may be formed differently.
  • the smog pattern unit 300a shown in FIG. 9 illustrates one example. As shown in FIG. 9, the distance between the fine photosensitive regions adjacent to each other may be formed to increase along one direction.
  • the distance between the fine photosensitive regions may be increased toward the first axis direction.
  • the second photosensitive region 320b and the second photosensitive region 320c adjacent to the second photosensitive region 320a and the second photosensitive region 320c adjacent thereto are larger than the first intervals F1 of the microphotosensitive region 320a and the microphotosensitive region 320b adjacent thereto. It can be formed large.
  • the third interval F3 of the fine photosensitive region 320c and the fine photosensitive region 320d adjacent thereto may be larger than the second interval F2, and likewise, the fourth interval F4 may be a third interval. It may be larger than the interval F3 and the fifth interval F5 may be larger than the fourth interval F4.
  • the fine photosensitive region may be formed to have a different size.
  • the smog pattern unit 300b illustrated in FIG. 10 illustrates one example. As shown in FIG. 10, the fine photosensitive region may be formed to grow along one direction.
  • the size of the fine photosensitive region may be increased toward the first axis direction.
  • the second size S2 of the fine photosensitive region 320h may be larger than the first size S1 of the fine photosensitive region 320g.
  • the third size S3 of the fine photosensitive region 320i may be larger than the second size S2, and the fourth size S4 of the fine photosensitive region 320j may be larger than the third size S3.
  • the fifth size S5 of the fine photosensitive region 320k may be larger than the fourth size S4.
  • the smog pattern portion may provide a unique pattern texture by varying the size of the microphotosensitive region or the spacing between the microphotosensitive regions to vary the arrangement of the microphotosensitive regions.
  • the shape of the fine photosensitive region may have not only a circle shape but also various shapes such as a rectangle and a hexagon (or honeycomb shape).
  • the fine photosensitive region may be variously modified such that the size increases and decreases in one direction, or the interval between adjacent fine photosensitive regions becomes longer and shorter in one direction.
  • the smog pattern unit 300 may be further provided with a color layer (not shown).
  • the color layer may be provided in both the basic region 310 and the fine photosensitive region 320 of the smog pattern portion 300.
  • the color layer may be provided by any one of deposition, printing, spraying and plating.
  • the color layer may be formed of a multilayer thin film.
  • the multilayer thin film may be formed by laminating one or more of a metal oxide layer and a nonmetal oxide layer.
  • Such a multi-layered thin film may control various wavelengths of incoming light, and thus may implement colors on the smog pattern unit 300.
  • the color layer is directly provided to the smog pattern portion 300 through the aforementioned method, a component for providing the color layer to the smog pattern portion 300, for example, an optically clear adhesive (OCA)
  • OCA optically clear adhesive
  • An adhesive or UV (ultraviolet) pattern is unnecessary, and thus, the glass substrate 200 can be made slim without increasing the thickness of the glass substrate 200.
  • the smog pattern portion 300 When the smog pattern portion 300 is formed on one surface of the glass substrate 200, when the cover glass 100 is installed in the portable terminal, the smog pattern portion 300 may be located inside the portable terminal. That is, the surface where the smog pattern portion 300 is not formed in the glass substrate 200 may be exposed to the outside, and a user's touch may be made on the exposed surface. Since the color layer is formed on the surface of the smog pattern portion 300, the smog pattern portion 300 and the color layer may be protected from a user's touch. In addition, since the light incident on the glass substrate 200 may directly reach the color layer of the smog pattern part 300, the transmittance is high and the color of the color layer may be clearly expressed.
  • FIG. 11 is a flowchart illustrating a manufacturing method of the cover glass according to the first embodiment of the present invention
  • FIG. 12 is an exemplary view illustrating a manufacturing process of the cover glass according to the first embodiment of the present invention.
  • the method for manufacturing a cover glass includes applying a photoresist ink or a dry film photoresist (DFR) to one surface of the glass substrate 200.
  • the process may include preparing a resist film 400 (S910).
  • the photoresist ink may be an acid resistant photoresist ink that does not react to the corrosion solution for corroding the glass.
  • the photoresist ink may be a positive type that becomes soluble at the time of exposure or a negative type that is insoluble.
  • Photoresist inks include screen print, spin coat, painting, spray, dip coating, feeding and slit die coating.
  • the glass substrate 200 may be coated by a method.
  • the method for manufacturing the cover glass includes exposing the resist film 400 to form a pattern 410 corresponding to the fine photosensitive region of the smog pattern portion (S920). It may include.
  • a mask 500 for forming a pattern 410 corresponding to the fine photosensitive region may be disposed above the resist film 400, and the light irradiated to the mask 500 may be UV light 510. have.
  • the method of manufacturing the cover glass may include a process of developing a pattern 410 corresponding to the fine photosensitive region (S930). To this end, the developer 600 may be sprayed on the glass substrate 200.
  • the method of manufacturing the cover glass corrodes the glass substrate 200 to form a fine photosensitive region 320 on one surface of the glass substrate 200. It may include a step (S940).
  • a dipping method of dipping the glass substrate 200 in the corrosion solution 700 may be used as shown.
  • the manufacturing method of the cover glass may include a step (S950) of taking out the glass substrate 200 from the corrosion solution 700, and peeling the resist film 400 on one surface of the glass substrate 200.
  • the protective layer on the other surface of the glass substrate 200 taken out of the corrosion solution 700 may also be removed.
  • the configuration of providing a resist film as described above can also be used in the case of using a sand blast process. That is, even when using the sand blast process, a resist film may be provided on the glass substrate to form a pattern corresponding to the fine photosensitive region.
  • a resist film may be provided on the glass substrate to form a pattern corresponding to the fine photosensitive region.
  • high pressure sand is sprayed onto the glass substrate. At this time, the sand sprayed to the outside of the fine photosensitive region contacts the resist film, which is applied to the glass substrate. Impact can be reduced to reduce the strength degradation of the glass substrate.
  • FIG. 13 is an exemplary view illustrating a smog pattern portion of a cover glass according to a second exemplary embodiment of the present invention
  • FIG. 14 is a cross-sectional view taken along the line G-G of FIG. 13.
  • a plurality of basic regions 1310 of the cover glass according to the present embodiment may be formed in the smog pattern portion 1300.
  • the base regions 1310 may be formed in the same shape and size, and each base region 1310 may be formed to have the same spacing between adjacent base regions.
  • the fine photosensitive region 1320 may form a single corroded region connected to the smog pattern unit 1300 without disconnection. That is, in the present embodiment, a portion corresponding to the fine photosensitive region 320 (refer to FIG. 7) of the first embodiment may be formed as the basic region 1310, and the basic region 310 (FIG. 7) may be formed as the fine photosensitive region 1320.
  • the above descriptions relating to the basic region and the micro-photosensitive region may be applied to both the micro-photosensitive region 1320 and the basic region 1310 of the present embodiment.
  • FIG. 15 is a plan view illustrating a cover glass according to a third embodiment of the present invention.
  • FIG. 16 is an enlarged view of a portion “H” of FIG. 15, and
  • FIG. 17 is a cross-sectional view taken along line II of FIG. 15.
  • the cover glass 2100 may include a glass substrate 2200, a smog pattern portion 2300, and an offset portion 2400.
  • the cover glass 2100 may include all kinds of glass substrates, including window glass.
  • the cover glass may cover the entire front or rear side of the mobile terminal, such as a window glass or a battery case.
  • the cover glass may be disposed on a part of the front side or the part of the rear side of the portable terminal.
  • the cover glass may be applied to a camera window, a function button, and various decorative parts.
  • the camera window may cover the camera module of the mobile terminal and expose the lens of the camera.
  • the cover glass When the cover glass is applied as a function button, the cover glass may be disposed to be the surface of the function button.
  • the various decorative parts 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 bezel region may mean not only an edge region on the cover glass but also a non-transmissive region in charge of a pattern or a decorative function, or a specific region marked on the cover glass for functional separation.
  • the glass substrate 2200 may protect the display panel inside the portable terminal on which the cover glass 2100 is mounted and transmit the screen of the display panel.
  • the glass substrate 2200 may be cut to a predetermined size according to the intended use, and then the surface may be washed and dried.
  • the glass substrate 2200 may be a glass material such as a soda lime glass substrate, an alkali free glass substrate, or a tempered glass substrate, but is not limited thereto.
  • the glass substrate 2200 may be made of a transparent resin material such as acrylic.
  • the smog pattern part 2300 may be formed on one surface of the glass substrate 2200.
  • the smog pattern portion 2300 may be formed in a fine concave-convex shape, through which the reflection of light may be reduced in the smog pattern portion 2300. Therefore, when light is applied to the glass substrate 2200 under the same conditions, the smog pattern portion 2300 may appear cloudy or cloudy when compared to other areas in which the smog pattern portion 2300 is not formed, and is softly shimmered. Distance may provide an effect.
  • the smog pattern portion 2300 may be formed through a corrosion process or a sand blast process using a corrosion solution.
  • the smog pattern part 2300 may be a corrosion area formed by corrosion of one surface of the glass substrate 2200.
  • a dipping method of dipping the glass substrate 2200 in a corrosion solution may be used.
  • the smog pattern portion 2300 may be a portion formed by roughening one surface of the glass substrate 2200 by sand sprayed.
  • the smog pattern portion 2300 may be further provided with a color layer (not shown).
  • the color layer may be provided by any one of deposition, printing, spraying and plating.
  • the color layer may be formed of a multilayer thin film.
  • the multilayer thin film may be formed by stacking one or more of a metal oxide layer and a non-metal oxide layer. Such a multi-layered thin film may control various wavelengths of incoming light, thereby realizing color on the smog pattern portion 2300.
  • the color layer may be directly provided to the smog pattern portion 2300 through the above-described method, the optical transparent adhesive (OCA), UV pattern, or the like, which is provided in the conventional cover glass, is unnecessary, and thus, the cover glass
  • OCA optical transparent adhesive
  • UV pattern or the like
  • the smog pattern portion 2300 When the smog pattern portion 2300 is formed on one surface of the glass substrate 2200, when the cover glass 2100 is installed in the portable terminal, the smog pattern portion 2300 may be located inside the portable terminal. That is, the surface where the smog pattern portion 2300 is not formed in the glass substrate 2200 may be exposed to the outside, and a user's touch may be made on the exposed surface. Since the color layer is formed in the smog pattern portion 2300, the smog pattern portion 2300 and the color layer may be protected from a user's touch. In addition, since the light incident on the glass substrate 2200 may directly reach the color layer of the smog pattern portion 2300, the transmittance is high and the color of the color layer may be clearly expressed.
  • the color layer may be formed on the other surface of the glass substrate 2200, the cover glass 2100 may be installed in the portable terminal so that the smog pattern portion 2300 is located outside the portable terminal.
  • the light may be first reflected and refracted by the smog pattern portion 2300 exposed to the outside before being incident on the glass substrate 2200, resulting in diffuse reflection, resulting in a soft texture.
  • the smog pattern portion 2300 may be provided on one surface or the other surface of the glass substrate 2200, and the color layer may be provided on the smog pattern portion 2300 or the opposite surface of the surface on which the smog pattern portion 2300 is formed. It can also be arranged.
  • the smog pattern part 2300 may be provided in the bezel area of the glass substrate 2200, and the color layer may also be provided in the bezel area of the glass substrate 2200.
  • the offset part 2400 is previously along the edge 2211 of the opening 2210 formed through the outer edge 2201 of the glass substrate 2200 and the glass substrate 2200 on one surface of the glass substrate 2200. It can be formed to a predetermined width.
  • the opening 2210 may expose a speaker, a camera lens, a function button, a sensor, and the like, and the present invention is not limited thereto, and may be for all components capable of producing a decorative effect.
  • the offset part 2400 may be formed of one surface of the glass substrate 2200 and may form a boundary with the smog pattern part 2300.
  • the offset part 2400 may be formed as a portion to which no corrosion or sand blast for forming the smog pattern part 2300 is applied. That is, the offset part 2400 may be made of the surface of the glass substrate 2200 itself, which is not subjected to corrosion or sand blasting.
  • the smog pattern portion 2300 is spaced apart from the outer edge 2201 of the glass substrate 2200 and the edge 2211 of the opening 2210 by the offset portion 2400. In other words, the smog pattern portion 2300 is formed to be offset. Can be.
  • the offset part 2400 is formed to have a predetermined width along the outer edge 2201 of the glass substrate 2200 and the edge 2211 of the opening 2210, and since the offset or 2400 blasting is not applied, the edge ( The decrease in strength of the 2201 and 2211 may be prevented to maintain the strength at the edges 2201 and 2211.
  • the width W of the offset part 2400 may be 30 ⁇ m to 500 ⁇ m.
  • the strength is lowered because the surface of the glass substrate is subjected to the corrosion or sand blasting treatment to the outer edge of the glass substrate and the edge portion of the opening formed through the glass substrate.
  • the outer edge of the glass substrate and the side of the edge of the opening are exposed to the outside, cracks or cracks are likely to occur even with a small impact, and such cracks or cracks cause a failure of the entire cover glass.
  • the cover glass according to the third embodiment of the present invention can maintain the strength at the edges 2201 and 2211 by forming the offset portions 2400 in the edges 2201 and 2211 which are weak portions of the glass substrate, and as a result, the edges Cracks or cracks from the 22021 and 2211 can be prevented.
  • FIG. 18 is a flowchart illustrating a manufacturing method of a cover glass according to a third embodiment of the present invention
  • FIG. 19 is an exemplary view illustrating a manufacturing process of a cover glass according to a third embodiment of the present invention.
  • the manufacturing method of the cover glass according to the third embodiment of the present invention is to open the area to form a pattern on one surface of the glass substrate, the outer edge and the glass substrate of one surface of the glass substrate
  • the step S2510 may include providing a resist film so that a portion having a predetermined interval from the edge of the opening formed through the inside of the glass substrate is not opened.
  • the region in which the pattern is to be formed may mean a region in which the smog pattern portion is to be formed by corrosion or sand blasting.
  • the region in which the resist film is provided may further include another portion in which corrosion or sand blasting is not performed together with a region in which an offset portion to be described later will be formed.
  • the other parts that are not subjected to the corrosion or sand blasting process include a display area where a screen of a display panel is displayed, an area corresponding to a speaker, a camera, various sensors, and the like, a logo area, and a partial area for design. can do.
  • forming a pattern on the glass substrate may be implemented using photolithography technology.
  • the step S2510 may include applying a photoresist ink or a dry film photoresist (DFR) 2600 to one surface of the glass substrate (S2511).
  • DFR dry film photoresist
  • the outer shape of the glass substrate 2200 may be in a pre-processed state to a shape to be used as a product, and the opening 2210 may be pre-processed in the glass substrate 2200 (FIGS. 19A to 19). b)).
  • the photoresist ink may be an acid resistant photoresist ink that does not react to a corrosion solution for corroding the glass substrate 2200.
  • the photoresist ink may be a positive type that becomes soluble during exposure, or a negative type that becomes insoluble.
  • the photoresist inks may include screen print, spin coat, painting, spray, dip coating, feeding, and slit die coating.
  • the glass substrate 2200 may be coated with a predetermined thickness by a method.
  • the photoresist ink or the photosensitive film may be entirely applied to one surface 2202 of the glass substrate 2200.
  • a mask pattern may be disposed on an upper surface of one surface of the glass substrate, and exposed and developed to open only a region where a pattern is to be formed (S2512).
  • the light 2620 irradiated to the mask pattern 2610 in the exposure process may be UV light, and the developing solution may be sprayed onto the glass substrate 2200 in the developing process (see FIGS. 19C to 19D). ).
  • the resist film 2650 is patterned by exposing and developing the photoresist ink or the photosensitive film, fine dimension adjustment is possible up to a range of 30 ⁇ m, and thus, the conventional silk screen It is possible to form a more precise pattern than to form a pattern using printing.
  • the resist film 2650 may be formed so that only the portion to form the smog pattern portion is opened.
  • the manufacturing method of the cover glass according to the third embodiment of the present invention may include the step of forming a fine uneven smog pattern portion by corrosion or sand blasting on an open area on one surface of the glass substrate (S2520). .
  • the glass substrate 2200 is covered by the resist film 2650.
  • the part may be protected from corrosion or sand blasting (see FIGS. 19 (d)-(e)).
  • the method of manufacturing the cover glass according to the third embodiment of the present invention provides a step (S2530) of removing the resist film to provide an offset part formed at a predetermined width along the outer edge of one surface of the glass substrate and the edge of the opening (S2530). It may include.
  • the offset part 2400 formed through the above process may be formed on one surface of the glass substrate 2200, and may form a boundary with the smog pattern part 2300 (see FIG. 19F).
  • the resist film 2650 is provided to cover the display area, the speaker, the camera and various sensors, and the like, a logo area, a partial area for design, and the like, together with the offset part.
  • an area corresponding to the display area, a speaker, a camera, various sensors, and the like, a logo area, and a partial area for a design may be simultaneously provided together with the offset part.
  • an outer edge 2201 of the glass substrate 2200 is formed between forming the smog pattern portion (S2520) and providing the offset portion (S2530).
  • the method may further include a step (S2525) of removing a fine crack of the edge 2211 of the opening 2210 and the smog pattern portion 2300.
  • step S2525 fine cracks and chippings caused by corrosion or sand blasting may be removed, and through this, the outer edges 2221 and the edges 2211 of the openings 2210 of the glass substrate 2200.
  • the strength of the part can be increased.
  • FIG. 20 is a cross-sectional view showing a cover glass according to a fourth embodiment of the present invention.
  • the cover glass 3100 includes a glass substrate 3110, a smog pattern portion 3210, a first color layer 3510, and a printing layer 3610. do.
  • the cover glass may include all kinds of glass substrates, including window glass.
  • the cover glass may cover the entire front or rear side of the mobile terminal, such as a window glass or a battery case.
  • the cover glass may be disposed on the front part or the rear part of the portable terminal.
  • the cover glass may be applied to a camera window, a function button, and various decor parts.
  • the cover glass When the cover glass is applied as a camera window, the camera window covers the camera module of the mobile terminal and exposes the lens of the camera.
  • the cover glass When the cover glass is applied as a function button, the cover glass may be disposed to be the surface of the function button.
  • the various decor parts 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 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 area may mean not only an edge area on the cover glass but also a non-transmissive area in charge of a pattern or a decoration function, or a specific area in which a part of edges of the cover glass are marked for functional separation.
  • the glass substrate 3110 protects the display panel inside the portable terminal and transmits the screen of the display panel.
  • a wiring (not shown), a speaker (not shown), a camera (not shown), and the like of the display panel may be positioned.
  • the glass substrate 3110 may be cut to a predetermined size according to the intended use, and then the surface may be washed and dried.
  • the glass substrate 3110 may be a soda lime glass substrate, an alkali free glass substrate or a tempered glass substrate, but is not limited thereto.
  • the glass substrate 3110 may be made of a transparent resin material such as acrylic, not glass.
  • the smog pattern portion 3210 is disposed on one surface of the glass substrate 3110.
  • the smog pattern portion 3210 is irregularly and finely cut in its surface. Therefore, the smog pattern portion 3210 may be seen as translucent or may give a soft feeling.
  • the smog pattern portion 3210 may be formed through sand blasting or corrosion.
  • the sand blast is a method of processing the surface of the glass substrate into a fine concavo-convex shape by spraying high-pressure sand on one surface of the glass substrate.
  • the corrosion may be used by dipping a glass substrate in a corrosion solution.
  • One surface of the glass substrate 3110 on which the smog pattern portion 3210 is formed is a surface on which a user's finger touch is made and is exposed to the outside when applied to a product. Accordingly, external light may be reflected and refracted by the smog pattern portion 3210, which is a fine concavo-convex surface, to cause diffuse reflection to exhibit a soft texture.
  • the first color layer 3510 is formed on the other surface of the glass substrate 3110.
  • the first color layer 3510 may be formed on the pattern portion 3410 of the glass substrate 3110.
  • the pattern part 3410 may be part of the other surface of the glass substrate 3110 and may be an area having a specific pattern. That is, the pattern portion 3410 may be a portion where the first color layer 3510 is formed on the other surface of the glass substrate 3110.
  • the pattern portion 3410 may be formed using a resist film 3310 (see FIG. 21) to be described later.
  • the pattern portion 3410 may be formed intaglio through corrosion (see FIG. 23).
  • the first color layer 3510 may be deposited to have the same pattern as the pattern portion.
  • the first color layer 3510 may be provided by any one of deposition, printing, spraying and plating.
  • the first color layer 3510 may be formed of a multilayer thin film, wherein the multilayer thin film may be formed by stacking one or more of a metal oxide layer and a non-metal oxide layer.
  • Such a multi-layered thin film may control various wavelengths of incoming light, thereby realizing color.
  • the cover glass 3100 may have a high transmittance as compared with the conventional cover glass 10 and may be made slim.
  • the print layer 3610 may be provided on the other surface of the glass substrate 3110 to cover the first color layer 3510.
  • the print layer 3610 may be a black matrix layer printed using black ink.
  • the black ink may include an inorganic compound such as a metal, a metal oxide, or an organic compound such as a polymer resin.
  • the print layer 3610 may form a bezel area (not shown) of the cover glass 3100.
  • the print layer 3610 may block light emitted from the display panel to display the display panel on a display unit (not shown) of the cover glass 3100, and may reflect external incident light.
  • the smog pattern unit 3210, the first color layer 3510, and the print layer 3610 described above may be provided in the bezel area (not shown) of the cover glass 3100. Therefore, the cover glass 3100 according to the fourth exemplary embodiment of the present invention may display a luxurious image by the soft texture by the smog pattern unit 3210 and the pattern implementation of the first color layer 3510.
  • FIG. 21 is an exemplary view showing a manufacturing method of a cover glass according to a fourth embodiment of the present invention.
  • a flow of a cover glass manufacturing process will be described with reference to FIG. 21.
  • a glass substrate 3110 is provided.
  • the smog pattern portion 3210 may be formed using a sand blast process or a corrosion process.
  • the sand blasting process is a method of processing high pressure sand on one surface of the glass substrate to form a fine concavo-convex shape
  • the corrosion process may be a dipping method of dipping the glass substrate in a corrosion solution. .
  • a resist film 3310 may be provided on the other surface of the glass substrate 3110.
  • the resist film 3310 may be formed by applying photoresist ink or a dry film photoresist (DFR) to the other surface of the glass substrate 3110.
  • the photoresist ink may be an acid resistant photoresist ink that does not react with an etchant to corrode glass.
  • the photoresist ink may be a positive type that becomes soluble during exposure or a negative type that becomes insoluble.
  • the photoresist inks include screen print, spin coat, painting, spray, dip coating, feeding and slit die coating.
  • the glass substrate 3110 may be coated with a predetermined thickness by a method.
  • the resist film 3310 can be exposed.
  • the mask pattern 3311 may be disposed on the resist film 3310 to expose only a part of the resist film.
  • the light irradiated onto the mask pattern 3311 may be UV light.
  • the exposed resist film 3310 may be developed to form the pattern portion 3410.
  • a portion of the resist film 3310 irradiated with UV light may be removed through the development process.
  • the pattern portion 3410 may be a portion where the resist film is removed to expose the glass substrate 3110.
  • the first color layer 3510 is provided on the other surface of the glass substrate 3110.
  • the first color layer 3510 may be entirely deposited on the other surface of the glass substrate 3110 including the pattern portion 3410.
  • the resist film 3310 of the glass substrate 3110 is completely removed.
  • the resist film 3310 may be peeled off by immersing the glass substrate 3110 in an alkali or strong alkaline aqueous solution at room temperature or higher (eg, 40 ° C. or higher).
  • the alkaline or strong alkaline aqueous solution may not react with the first color layer 3510. Accordingly, only the resist film 3310 may be peeled off.
  • the first color layer 3510 coated on the resist film 3310 is also removed. As a result, only the first color layer 3510 remains on the other surface of the glass substrate 3110. It becomes possible.
  • the print layer 3610 is provided to cover the first color layer 3510 on the other surface of the glass substrate 3110.
  • the print layer 3610 may be provided in the bezel area of the glass substrate 3110.
  • the smog pattern portion 3210 is first formed and then the first color layer 3510 is formed. However, the smog pattern portion 3210 is formed after the first color layer 3510 is first formed. It is possible.
  • the cover glass 3100 according to the fourth embodiment of the present invention may implement two or more multi-colors.
  • 22 is an exemplary view showing a manufacturing method capable of implementing a plurality of colors in a cover glass according to a fourth embodiment of the present invention. 22 (a) to 22 (e) are the same as the contents described above with reference to FIG. 21, and thus description thereof will be omitted.
  • an additional photoresist layer 3710 is provided to cover the other surfaces of the first color layer 3510 and the glass substrate 3110, and a mask pattern is disposed. By exposing and developing, the additional pattern portion 3720 may be formed on the other surface of the glass substrate 3110. In the process of providing the additional pattern portion 3720 on the additional photoresist layer 3710, the method of forming the pattern portion 3410 on the resist film 3310 may be applied in the same manner.
  • the second color layer 3810 may be provided on the top surface of the additional pattern portion 3720 and the additional photoresist layer 3710.
  • the second color layer 3810 may have a color different from that of the first color layer 3510, and the second color layer 3810 may be provided by any one of deposition, printing, spraying, and plating.
  • the additional pattern portion means a pattern portion additionally formed after forming the first pattern portion. Therefore, the additional pattern portion may be the second pattern portion, the third pattern portion, the fourth pattern portion, or the like according to the formation order after the first pattern portion is formed.
  • the second color layer refers to a color layer provided in the additional pattern portion. Like the additional pattern portion, the second color layer may be represented as a second color layer, a third color layer, a fourth color layer, or the like according to the order of preparation after the first first color layer is provided.
  • the additional photoresist layer 3710 may be peeled off, leaving the second color layer 3810.
  • the process of peeling the additional photoresist layer 3710 may be applied in the same manner to the peeling of the resist film 3310 described above with reference to FIG. 21. Accordingly, the first color layer 3510 and the second color layer 3810 may be provided on the other surface of the glass substrate 3110.
  • the other surface of the glass substrate 3110 may be covered with the print layer 3610 along with the first color layer 3510 and the second color layer 3810.
  • the print layer 3610 may have a color, and the print layer 3610 may have a different color from the first color layer 3510 and the second color layer 3810.
  • the first color layer 3510, the second color layer 3810, and the print layer 3610 may be directly provided on the other surface of the glass substrate 3110, and thus, the color of the first color layer 3510 may be provided.
  • three colors of the color of the second color layer 3810 and the color of the printing layer 3610 may be implemented on one surface of the glass substrate 3110 through the glass substrate 3110.
  • the number of the additional pattern portion and the color layer can be increased as much, and accordingly, the implementation of multiple colors can be possible.
  • the second color layer may be provided to cover the first color layer 3510.
  • the second color layer may be provided to cover a portion of the other surface of the glass substrate 3110 together with the first color layer 3510.
  • the print layer may be provided to cover the first color layer and the second color layer.
  • FIG. 23 is a cross-sectional view illustrating a cover glass according to a fifth embodiment of the present invention.
  • the remaining components except for the pattern portion 4410 are the same as in the above-described fourth embodiment, and thus description thereof is omitted.
  • a smog pattern portion 4210 may be formed on one surface of the glass substrate 4110.
  • the pattern portion 4410 may be formed on the other surface of the glass substrate 4110.
  • the pattern portion 4410 may be formed intaglio through corrosion on the other surface of the glass substrate 4110.
  • the first color layer 4510 may be provided in the pattern portion 4410.
  • the print layer 4610 may be provided on the other surface of the glass substrate 4110 to cover the first color layer 4510.
  • the pattern formed by the pattern portion 4410 may have a color of the first color layer 4510 and may be expressed in contrast with the color of the printed layer 4610.
  • the first color layer 4510 may be provided on the other surface of the glass substrate 4110 together with the pattern portion 4410. In this case, the configuration of the printed layer may be omitted, and thus the first color layer 4510 may implement the function of the printed layer.
  • FIG. 24 is an exemplary view showing a manufacturing method of a cover glass according to a fifth embodiment of the present invention. Since the previous step of FIG. 24A is the same as that of FIGS. 21A to 21D, description thereof will be omitted.
  • a glass substrate 4110 is prepared.
  • the glass substrate 4110 may have a smog pattern portion 4210 and a resist film 4310 on one surface and the other surface, respectively.
  • a pattern portion 4410 may be formed.
  • the pattern portion 4410 may be formed by etching the glass substrate 4110 using the patterned resist film 4310 as a mask.
  • the pattern portion 4410 may be formed intaglio through corrosion.
  • the first color layer 4510 may be provided in the pattern portion 4410. Since the pattern portion 4410 is formed intaglio on the glass substrate 4110, the first color layer 4510 may be provided without protruding to the outside of the glass substrate 4110.
  • the resist film 4310 may be completely removed.
  • the resist film 4310 may be peeled off by immersing the glass substrate 4110 in an alkali or strong alkaline aqueous solution at room temperature or higher (eg, 40 ° C. or higher).
  • the alkaline or strong alkaline aqueous solution may not react with the first color layer 4510. Accordingly, only the resist film 4310 may be peeled off.
  • the first color layer 4510 coated on the resist film 4310 is also removed, resulting in a first color on the pattern portion 4410 on the glass substrate 4110. Only layer 4510 will remain.
  • the print layer 4610 is formed on the other surface of the glass substrate 4110.
  • the print layer 4610 may be provided to cover the first color layer 4510.
  • the print layer 4610 may be provided in the bezel area of the glass substrate 4110.
  • the smog pattern portion 4210 is first formed and then the first color layer 4510 is formed. However, the smog pattern portion 4210 is formed first, and then the smog pattern portion 4210 is formed. It is possible.
  • a process of masking the entire smog pattern part 4210 may be added before the step shown in FIG. 24B so that the smog pattern part 4210 is not corroded together in the process of forming the pattern part 4410. have.
  • the resist film 4310 may be removed before the first color layer 4510 is provided.
  • the first color layer may be provided on the other surface of the glass substrate 4110 together with the pattern part 4410, and the printing layer may be omitted so that the first color layer may implement the function of the printing layer. have. In this case, only the color of the first color layer 4510 may be implemented in the cover glass, and the pattern of the pattern portion 4410 formed in the intaglio may be implemented.
  • the cover glass 4100 according to the fifth embodiment of the present invention can implement two or more multi-colors.
  • 25 is an exemplary view showing a manufacturing method capable of implementing a plurality of colors in a cover glass according to a fifth embodiment of the present invention.
  • 25 (a) to 25d are the same as the contents described above with reference to FIG. 24, and thus description thereof is omitted.
  • an additional photoresist layer 4710 is provided to cover the other surfaces of the first color layer 4510 and the glass substrate 4110, and the mask pattern is disposed. By exposing and developing, the additional pattern portion 4720 may be formed on the other surface of the glass substrate 4110. In the process of preparing the additional pattern portion 4720 on the additional photoresist layer 4710, the method of forming the pattern portion 4410 on the glass substrate 4110 using the resist film 4310 may be applied in the same manner. .
  • the second color layer 4810 may be provided on the top surface of the additional pattern portion 4720 and the additional photoresist layer 4710.
  • the second color layer 4810 may have a color different from that of the first color layer 4510, and the second color layer 4810 may be provided by any one of deposition, printing, spraying, and plating.
  • the additional photoresist layer 4710 may be peeled off to leave the second color layer 4810.
  • the peeling of the resist film 4310 may be applied in the same manner.
  • the first color layer 4510 and the second color layer 4810 may be provided on the other surface of the glass substrate 4110.
  • the other surface of the glass substrate 4110 including the first color layer 4510 and the second color layer 4810 may be covered with the print layer 4610.
  • the print layer 4610 may have a color, and the print layer 4610 may have a different color from the first color layer 4510 and the second color layer 4810.
  • the first color layer 4510, the second color layer 4810, and the print layer 4610 may be directly provided on the other surface of the glass substrate 4110, and thus, the color of the first color layer 4510 may be provided.
  • the three colors of the color of the second color layer 4810 and the color of the print layer 4610 may be implemented on one surface of the glass substrate 4110 through the glass substrate 4110.
  • the number of the additional pattern portion and the color layer can be increased as much, and accordingly, the implementation of multiple colors can be possible.
  • the pattern layers 4410 and 4720 are intaglio and the color layers 4510 and 4810 are provided so that the color layers 4510 and 4810 are relatively distinct and protruding. It can provide more aesthetics such as visible, thereby providing a better aesthetic.
  • the second color layer may be provided to cover the first color layer 4510 in the state shown in FIG. 25D and to cover a part of the other surface of the glass substrate 4110.
  • the print layer may be provided to cover a portion of the first color layer 450, the second color layer, and the glass substrate 4110 that is not covered by the second color layer.
  • the second color layer may be provided to cover the entire other surface of the first color layer 4510 and the glass substrate 4110 in the state illustrated in FIG. 25D.
  • the configuration of the printed layer may be omitted, and thus the second color layer may implement the function of the printed layer.
  • the additional pattern portion may be formed in the form of the glass substrate 4110 is corroded, as well as various modifications such as may be formed on the surface of the glass substrate 4110.
  • 26 is a cross-sectional view illustrating a cover glass according to a sixth embodiment of the present invention.
  • the pattern portion 5410 may be intaglio formed on one surface of the glass substrate 5110.
  • one surface of the glass substrate 5110 on which the pattern portion 5410 is formed is a surface on which a user's finger touch is made and is exposed to the outside when applied to a product.
  • the smog pattern part 5220 may be formed on the other surface of the glass substrate 5110.
  • the first color layer 5510 may be provided to fill the smog pattern portion 5220.
  • the printed layer 5610 may be provided to cover the first color layer 5510, but it is not necessarily provided. In some cases, the configuration of the printed layer 5610 may be omitted, and the first color layer may be omitted. 5510 may implement the functions of the printed layer.
  • the cover glass according to the present exemplary embodiment has a merit of expressing a color surface and a subtle texture by the smog pattern part 5220 and the first color layer 5510, and a three-dimensional pattern expression by the pattern part 5410.
  • FIG. 27 is a cross-sectional view showing a cover glass according to a seventh embodiment of the present invention
  • Figure 28 is an exemplary view showing a manufacturing method of the cover glass according to the seventh embodiment of the present invention.
  • one surface of the glass substrate 6110 is formed flat, and the smog pattern portion 6220 and the pattern portion 6410 are together on the other surface of the glass substrate 6110. Can be formed.
  • the smog pattern part 6220 may be formed on the other surface of the glass substrate 6110.
  • the resist film 6310 may be provided covering the smog pattern portion 6220.
  • the pattern portion 6410 may be formed by corroding the glass substrate 6110 using the patterned resist film 6310 as a mask. That is, the pattern portion 6410 may be formed intaglio through corrosion. In this case, the patterning of the resist film 6310 may be performed in the same manner as in the above-described fifth embodiment.
  • the first color layer 6510 may be formed in the pattern portion 6410. Since the pattern portion 6410 is formed intaglio on the glass substrate 6110, the first color layer 6510 may be provided without protruding outside the glass substrate 6110.
  • the resist film can be completely removed.
  • the resist film may be peeled off by immersing the glass substrate 6110 in an alkali or strong alkaline aqueous solution at room temperature or higher (eg, 40 ° C. or higher).
  • the alkaline or strong alkaline aqueous solution may not react with the first color layer 6510. Accordingly, only the resist film can be peeled off.
  • the first color layer 6510 coated on the resist film is also removed. As a result, only the first color layer 6510 remains on the pattern portion 6410 on the glass substrate 6110. It becomes possible.
  • the printed layer 6610 is formed on the other surface of the glass substrate 6110.
  • the print layer 6610 may be provided to cover the first color layer 6510.
  • the print layer 6610 may be provided in the bezel area of the glass substrate 6110.
  • the smog pattern portion 6220 is formed first, and then the pattern portion 6410 is formed.
  • the smog pattern portion 6220 may be formed after the pattern portion 6410 is formed first. In this case, as the smog pattern is added, the boundary may be blurred or softened, thereby providing another aesthetic sense.
  • the resist film 6310 is removed, and then the first color layer 6510 may be formed on the other surface of the pattern portion 6410 and the glass substrate 6110.
  • the configuration of the print layer 6610 may be omitted, and the first color layer 6510 may implement the functions of the print layer.
  • the cover glass 6100 according to the seventh embodiment of the present invention may further include a second color layer (not shown).
  • the method described above with reference to FIG. 25 may be applied to the second color layer.
  • the second color layer may be provided on an additional pattern part (not shown) formed intaglio on the other surface of the glass substrate 6110. have.
  • the method described above with reference to FIG. 22 may be applied to the second color layer.
  • the second color layer may be provided on an additional pattern portion formed on the other surface of the glass substrate 6110.
  • the printing layer may be provided to cover the first color layer 6510 and the second color layer.
  • the configuration of the printing layer may be omitted, and the second color layer may implement the function of the printing layer.
  • steps (a) to (d) of FIG. 24 may be repeated to form the second color layer on the corroded surface, wherein the region where the second color layer is deposited does not overlap the pattern portion 6410. You may not.
  • a smog pattern 6220 is formed on the other surface of the glass substrate 6110 and the first color layer 6610 is formed in an intaglio, thereby forming one surface of the glass substrate 6110.
  • the first color layer 6510 may further provide a three-dimensional effect such as being relatively distinct and protruding.
  • the smog pattern 6220 may be formed around the first color layer 6510 to provide a high quality aesthetic by soft texture and color implementation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

La présente invention concerne un verre protecteur, qui est rendu mince et possède une résistance améliorée, qui peut fournir une texture de haute qualité, et qui présente un micro-niveau de précision de motif, et son procédé de fabrication. Un verre protecteur selon un mode de réalisation de la présente invention comprend un substrat de verre et une partie de motif brumeux formée sur une surface du substrat du verre. La partie de motif brumeux est formée sur une surface du substrat du verre sous la forme de micro-saillies.
PCT/KR2015/009899 2014-09-19 2015-09-21 Verre protecteur et son procédé de fabrication Ceased WO2016043572A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR1020140124910A KR20160033982A (ko) 2014-09-19 2014-09-19 커버글라스
KR10-2014-0124910 2014-09-19
KR1020140154753A KR101594877B1 (ko) 2014-11-07 2014-11-07 커버글라스 및 이의 제조방법
KR10-2014-0154753 2014-11-07
KR1020150130808A KR101707392B1 (ko) 2015-09-16 2015-09-16 커버글라스 및 이의 제조방법
KR10-2015-0130808 2015-09-16

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CN107741794A (zh) * 2017-09-27 2018-02-27 广东欧珀移动通信有限公司 加工玻璃的方法、玻璃、显示屏及电子设备
CN107856371A (zh) * 2017-10-27 2018-03-30 江西合力泰科技有限公司 一种曲面玻璃盖板的掩膜及其制造方法
TWI658771B (zh) * 2018-02-13 2019-05-01 群邁通訊股份有限公司 電子裝置及其製備方法
US10399305B2 (en) * 2016-10-31 2019-09-03 Nanchang O-Film Optical Technology Co., Ltd Cover glass lamination structure
CN110927831A (zh) * 2018-08-29 2020-03-27 北京小米移动软件有限公司 终端设备前盖玻璃和终端设备
CN112694260A (zh) * 2019-10-23 2021-04-23 比亚迪股份有限公司 玻璃件及其制备方法和器件
CN112714206A (zh) * 2020-12-14 2021-04-27 惠州Tcl移动通信有限公司 一种手机盖板与摄像头护镜的组装方法
CN112817485A (zh) * 2021-02-19 2021-05-18 联想(北京)有限公司 透明盖板及其制作方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10399305B2 (en) * 2016-10-31 2019-09-03 Nanchang O-Film Optical Technology Co., Ltd Cover glass lamination structure
CN107741794A (zh) * 2017-09-27 2018-02-27 广东欧珀移动通信有限公司 加工玻璃的方法、玻璃、显示屏及电子设备
CN107856371A (zh) * 2017-10-27 2018-03-30 江西合力泰科技有限公司 一种曲面玻璃盖板的掩膜及其制造方法
CN107856371B (zh) * 2017-10-27 2023-07-18 江西合力泰科技有限公司 一种曲面玻璃盖板的掩膜及其制造方法
TWI658771B (zh) * 2018-02-13 2019-05-01 群邁通訊股份有限公司 電子裝置及其製備方法
CN110927831A (zh) * 2018-08-29 2020-03-27 北京小米移动软件有限公司 终端设备前盖玻璃和终端设备
CN112694260A (zh) * 2019-10-23 2021-04-23 比亚迪股份有限公司 玻璃件及其制备方法和器件
CN112694260B (zh) * 2019-10-23 2021-12-07 比亚迪股份有限公司 玻璃件及其制备方法和器件
CN112714206A (zh) * 2020-12-14 2021-04-27 惠州Tcl移动通信有限公司 一种手机盖板与摄像头护镜的组装方法
CN112817485A (zh) * 2021-02-19 2021-05-18 联想(北京)有限公司 透明盖板及其制作方法

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