KR20170000302A

KR20170000302A - Metal Decoration for the sapphire glass cover of the smart watch

Info

Publication number: KR20170000302A
Application number: KR1020150089361A
Authority: KR
Inventors: 박철
Original assignee: 박철
Priority date: 2015-06-23
Filing date: 2015-06-23
Publication date: 2017-01-02

Abstract

The present invention relates to an extrnal cover of an electronic device using a radio wave signal and equipped with a touch screen and having a display, and more particularly, to a sapphire glass used as a cover glass for a protective cover of a smart watch In the tempered glass, a metal thin film is formed on a cover glass, and the metal thin film is a metal thin film figure formed in the shape of a figure. The metal thin film figure is electrically insulated from the adjacent metal thin film figure, And the metal thin film figure is formed so as to extend to the display area of the outer cover.
In this way, it is possible to improve the metallicity of the design by making the metal texture appear when the display screen is turned off in a sapphire glass or tempered glass which is used as a protection cover of a smart watch in the past.

Description

[0001] The present invention relates to a metal watch for a smart watch sapphire glass cover,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to decorating a cover glass of an electronic apparatus having a display, more specifically, to an electronic apparatus having a display having a capacitive touch panel and having a transparent cover This is a metal decoration effect using a metal thin film coated on a cover glass using sapphire glass as a cover. The structure of the metal thin film which does not disturb the function of the touch screen, the manufacturing method, and the reflection of light by the metal thin film To a transparent substrate which is used as a front cover to minimize the thickness of the transparent substrate.

In particular, it is equipped with a display, a touch screen function of an electrostatic type, a protection glass on the front side, a wireless communication function with the outside through a Bluetooth or a Wi-Fi, and a semiconductor chip such as a CPU It is possible to decorate the sapphire glass used as a front cover to the Smart Watch which is usually called as a smart watch, and to improve the decoration effect and visibility by fabricating the scattering surface which reduces the reflection of light. This is possible.

In addition, the sapphire glass above the display on which the smart watch display is formed can form a metal thin film having a level of electrical insulation that does not interfere with the visibility of the touch screen signal, thereby improving the design of the smart watch have.

Smartphones, tablets, smart watches, laptops, and monitors, which are equipped with a touch screen among electronic devices, use a transparent cover having a transparent portion for displaying a display. Especially, a transparent glass or sapphire glass (Cover Glass) to the front.

In this case, the frame except for the display portion forms a decoration through a printing method or the like.

Especially, various attempts are being made because the decoration expresses the design of the electronic device.

Among various attempts, use of new materials such as metal oxide multi-coatings such as SiO2, TiO2, etc. has been actively adopted as well as printing colors.

However, metal materials are not used because metal can cause malfunction of the capacitive touch screen when used as decorations.

In addition, metals are highly reflective of light, so that when the metal is coated on the peripheral decoration of the display, the reflection of the mirror hinders the visibility of the display.

Therefore, in the present invention, the decoration of the cab glass of the electronic device having the touch screen function is designed not to cause malfunction of the touch screen but to use the metallic material which does not disturb the visibility.

Especially, in a sapphire glass used for a smart watch, since the design of a wearable device unique to a smart watch must be emphasized, the metal texture and the metal decoration can be extended to the display portion, .

Therefore, in the present invention, a transparent thin film, transparent plastic, tempered glass or sapphire glass is used, and a metal thin film is formed so as to provide a metal texture and a structure of a metal thin film which does not hinder communication by a radio wave signal including a touch signal or a wireless communication signal And a structure for minimizing external light reflection is devised.

The present invention relates to an extrnal cover for an electronic device using a radio wave signal and having a display mounted thereon, and more particularly, as an example of an external cover, a sapphire glass as a cover of an electronic device equipped with a touch screen, The structure used for the glass is described as an example, and it can be applied to a tempered glass, another transparent film, a transparent plastic substrate, or the like.

The present invention is, as an example. The metallic decorations of the cabagglass of electronic devices using electrostatic touch screens do not interfere with the operation of the capacitive touch screen.

The present invention also relates to a structure for imparting a haze effect to metal decoration to reduce the reflection by the mirror effect of the metal.

It is another object of the present invention to provide a structure of a metal thin film which does not cause an electrical malfunction of an electrostatic touch screen in an electronic device using an electrostatic touch screen. The metal thin film has a scattering structure for minimizing the visibility of the etched structure of the metal thin film To a structure according to the relative position of the metal thin film structure.

In addition, the decoration effect is doubled by partially reflecting the metal.

In addition, the part that should be emphasized including the edge portion of the cover glass is partially prevented from forming a scattering layer so that the luster of the metal is maintained, thereby maintaining the metal texture of the smart watch.

In addition, the present invention is a structure in which metal is coated so that the printed surface appears between the metals so that the metal effect and the printing effect are brought out as decorations, and then black and white or color printing is further performed.

With such a structure, as a transparent substrate as a front protective cover of an electronic device using a radio signal equipped with a display, it is possible to improve the decoration effect that can produce a metal effect of a cab glass of an electronic device having a touch screen, Structure.

Furthermore, in the application to the smart watch, the structure of the metal thin film which does not disturb the electric signal formed in the decoration portion is extended to the display portion of the cabaglass, thereby maintaining the metal texture as a whole.

According to a preferred embodiment of the present invention for achieving the objects of the present invention, there is provided a transparent substrate for use in a front surface of a display of an electronic device, the transparent substrate being made of tempered glass or sapphire glass of an electronic device, In the decorating portion of the cover glass used, a metal thin film layer is formed on the rear surface opposite to the top surface of the cover glass, and the metal thin film layer is partially etched to be electrically insulated, thereby forming a thin film or electrostatic touch screen So as to have an electric insulation structure which does not disturb,

Particularly, in the display part where the screen of the cab glass is formed, a metal thin film which is electrically insulated is formed as a structure through which light is transmitted, so that when the screen is turned off, the metal is displayed. When the screen is turned on, And the screen of the display appears as the visibility is minimized.

In addition, by forming light refraction structure or light scattering structure by micro-bending on the upper surface, lower surface, or both surfaces of the cover glass, the reflection effect of the metal is minimized or the decoration effect of the metal is enhanced by mixing the gloss and scattering structure .

The metal scattering structure is a sanding technique in which a scattering structure is formed by spraying a powder of a few micrometers in size and scratching the glass to form a fine bend on the surface of the cover glass using an etching technique using an acid Or a method of forming a scattering structure by etching such as plasma etching (ICP) or PECVD technique, and the like.

Electrically insulated metal thin film structures are formed by forming a plurality of metal shapes. The forming methods include thermal evaporation, e-beam evaporation, sputtering ) Or the like, a single metal or two or more kinds of metals or alloys are coated on one side of a cab glass with a thin film having a thickness of usually less than 0.2 micrometer, and then a photolithography process is performed to form a metal thin film Etching the part, or blowing the metal with a laser.

Next, in the decoration part of the cover glass, a metal thin film, which is etched in a circular, elliptic, polygonal, or random shape in order to prevent light leakage, The figure is printed on a silk screen in white, colored, black, and other colors.

In addition to the metal thin film, a metal oxide such as SiO2, Si3N4, TiN (Titanium Nitride), MgF2, Al2O3, TiO2, or a metal fluoride, or a metal nitride may be coated as a single layer or a laminate, Various colors can be formed.

Particularly important for the application to the smart watch is that the metal thin film graphic according to the present invention is formed to the display area of the cover glass of the smart watch so that the metal texture of the partial transparent function is also displayed in the display area.

Conventionally, a metal thin film is coated thinly for the semitransparent function of the metal.

For example, in the case of aluminum, when the thickness of aluminum is adjusted between 5 nanometers and 50 nanometers, the transmittance decreases gradually as the thickness of the aluminum increases.

However, if it does not reach a certain thickness, the color of the aluminum does not become the color of the metal, but the colored color such as the automobile's tinting film comes out.

This is because if the metal does not reach a certain thickness or more, the original color can not be obtained.

In addition, if the thickness is increased in order to bring out the metal texture, the transmittance decreases and electricity flows, which interferes with the touch of the display area according to the characteristics of the touch screen driven by the radio wave signal.

On the other hand, since the structure according to the present invention determines the transmittance as the size of the thin metal film, the thickness of the metal can be coated to 100 nm or more by sputtering or ebeam evaporation, have.

In addition, since the structure of the metallic thin film figure is an electrically insulated structure that does not conduct electricity, it does not interfere with the radio signal of the touch screen.

In the present invention, in order to achieve a metallic effect, a metal thin film pattern is formed in a display area of a cab glass including a sapphire in a display area of an electronic device including a smart phone or a smart watch so that the display is transmitted, It does not interfere with the metal effect.

For example, if a three-micron square metal thin-film pattern is formed on a 10-micrometer pitch screen on the top of a display, the metal occupies about 9% of the display area.

In this structure, the thickness of the metal thin film is maintained at 50 nm or more to maintain the color of the metal.

In addition, it is also possible to randomize the arrangement of the metal thin films to eliminate the moire phenomenon, and it is also possible to provide a metal thin film capable of simultaneously maintaining the effect of metal color and maintaining the transparency, Decoration is possible.

The cabaglass, which is formed by decorating an electrically insulated thin film figure of an electronic device having an electrostatic touch panel according to the present invention, is a structure that minimizes reflection of light while giving a metallic texture. It is an advanced decoration of a metal texture, It is possible to prevent a malfunction of the motor.

In addition, as the metal thin film decoration of the cabagglass including the sapphire glass of the smart watch, the metal thin film shape which does not disturb the touch propagation signal is distributed from the outer side of the cab glass to the display area, doubling the overall metal decorating effect.

Fig. 1 is a view showing the existing smart watch, and is a view showing a comparison between when the screen is turned on and when the screen is turned off.
2 shows a cross-sectional structure of a general smart watch as an example.
3 is a simplified view of the touch screen 203 at the lower portion of the cab glass 201. As shown in FIG.
Fig. 4 is a view showing the border area of the cab glass.
FIG. 5 is a view illustrating a structure in which a metal thin film having a structure that does not disturb a touch screen signal is formed in a border area of a cab glass using a sapphire glass or a tempered glass of a smart watch or a smart phone according to the present invention.
6 shows various structures of shapes of metal thin films
Fig. 7 shows that the intervals between the metal thin film shapes of the cabaglass using the sapphire glass or the tempered glass to be used in the smart watch or smart phone are not uniform and can vary depending on the design.
FIG. 8 is a view showing the structure of a thin metal film as an element of the present invention up to the display area, thereby enhancing the design of a smart watch in particular.
9 shows an example in which the arrangement and shape of various graphic forms can be used as various applications of the metal thin film graphic form, in which the arrangement of the metal thin film graphic form of the metal thin film graphic layer 501 formed on the cover glass 201 is in the form of a curve 901 in the figure.
FIG. 10 shows a structure in which random micro-bending is formed on one side of a cover glass made of sapphire glass or tempered glass and a metal thin-film shape is formed on the opposite side of micro-bending.
Fig. 11 is an enlarged cross-sectional view of the cab glass showing the structure according to the present invention.
12, a process of partially forming fine bending and forming a metal thin film layer and a print layer is shown.
13, the portion 1201 to be formed with micro-bending in a cover glass made of sapphire glass or tempered glass is sanded or chemically etched, or is etched by a plasma etching method or the like The structure in which the fine bending 1001 is formed is shown in a plan view (a) and a sectional view (b).
Fig. 14 is a sectional view showing a part of the cover glass made of sapphire glass or tempered glass to which micro-bending should be formed is subjected to masking for forming micro-bending part in a partially sanding or chemical etching process, 1001 are formed and then the masking layer is peeled off is shown in a plan view (a) and a cross-sectional view (b).
Fig. 15 shows a part of the cover glass made of sapphire glass or tempered glass to be subjected to micro-bending after masking to form micro-bending part. The part to be micro-bent is sanded or chemically etched, or micro- (A) and a cross-sectional view (b) show the structure in which the masking layer is formed and then a thin metal film layer 501 is formed on the bottom of the cover glass.
16 shows a structure in which the metal thin film forming layer 501 is formed on the lower part of the cab glass 201 and then the printing layer 202 for preventing light leakage is formed again in black, white or colored, (b).
FIG. 17 is a cross-sectional view showing a structure in which micro-bending is formed on the upper surface, the lower surface, the lower surface, or both surfaces of the cover glass, or a metal thin film figure can be formed as a whole.
Fig. 18 is a view showing a micro-bend formed on the lower surface of the cab glass and forming a metallic thin film figure and then forming a printed layer.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments. For reference, the same numbers in this description refer to substantially the same elements and can be described with reference to the contents described in the other drawings under the above-mentioned rules, and the contents which are judged to be obvious to the person skilled in the art or repeated can be omitted.

The present invention relates to an extrnal cover of an electronic device using a radio wave signal and equipped with a display and having a capacitive touch screen function, and more particularly to an electronic device having a touch screen as an example of an external cover A transparent substrate is used as a cover of a smartphone or a smart watch and a transparent substrate such as sapphire glass or tempered glass is used as a cover glass cover glass. A transparent plastic substrate such as a glass substrate, or the like.

Especially, it is applied to electronic devices such as smart phones or smart touches.

In particular, the transparent substrate is applied to a smart watch or a smart phone in which tempered glass or sapphire glass is used as a cover glass.

Fig. 1 is a diagram showing the existing smart watch, which is a comparison between when the screen is turned on and when it is turned off.

1 (a) shows an example in which a screen of a smart watch 100 of a specific company is turned on. When the screen is turned on, the display area 101 in which a display screen is displayed is distinguished from the black border area 102 .

1 (b) and 1 (c) show a SmartWatch of a specific company when the screen is turned off, and the display area 101 and the peripheral edge area 102 in the middle are usually displayed in black.

This is because the display is also displayed in black when the screen is turned off, and the border is also printed in black in many cases, so that the design of the watch, which is a wearable device, is not prominent.

Since the clock is generally used as an accessory, various screen effects when the screen is turned on to display the functions of the smart watch can be utilized as a design, but when the screen is turned off, the border area and the display area become black, Does not appear.

This is because the border area can not use metal because the wiring of the touch screen passes.

Because it is finished with a simple color, the SmartWatch does not show the metal texture that is important in the design when compared to a regular watch when the screen is turned off, because it does not use a variety of metal materials commonly used in watches.

Therefore, to solve this problem, a technical method is required to use metal in the tarsal region.

2 shows a cross-sectional structure of a general smart watch as an example.

(a) shows a display area 101 and a border area 102 of the smart watch 100 as a front view.

(b) is a cross-sectional view showing an internal structure.

A cover glass 201 made of sapphire glass or tempered glass is disposed at an upper portion and a border area of the cover glass is divided into a display area 101 and a frame area 102 of a smart watch, And a cover glass formed on the edge of the printed layer is adhered to a touch screen or a display using an adhesive layer 203 such as a transparent adhesive. A touch screen 204 is attached to a lower portion of the cover glass. And a display 205 is attached to the lower portion.

The touch screen may be formed by a method such as an in-cell method or an on-cell method. The structure of the touch screen according to the present invention is such that the signal line of the touch screen is similarly formed in the tail region.

Therefore, the printed layer formed in the edge region of the cover glass is generally an area outside the display of the display, and is a region that covers the signal line of the touch screen.

3 is a simplified view of the touch screen 203 at the lower portion of the cab glass 201. As shown in FIG.

(a) is a cross-sectional view, and a cover glass 201 and a touch screen 203 are shown.

(b) is a plan view of the touch screen, in which a transparent electrode portion 301, which is made of an ITO (Indium Tin Oxide) thin film corresponding to the display region, and a signal electrode line 302 using a silver paste printed or copper thin film, Respectively.

Since the signal is transmitted by the signal electrode line in the edge region, it is not possible to use the metal decoration which is coated with the metal as a whole in the edge region of the cover glass which is the upper surface of the portion where the signal electrode line exists.

In addition, since there is a transparent electrode for transmitting / receiving a touch signal to the display area, the metal thin film can not be used as a whole, and since the metal shields the display screen, it is difficult to use it in the screen area.

Fig. 4 is a view showing the border area of the cab glass.

the display area 101 of the cover glass 201 is transparent and the print layer 202 formed by screen printing or the like is formed below the peripheral edge area 102 and the decoration function and the touch Make sure that electrodes such as screens are not visible.

the display area 101 of the cover glass 201 is transparent and the print layer 202 formed by screen printing or the like is formed in the lower part of the peripheral edge area 102, This is what you see.

FIG. 5 is a view illustrating a structure in which a metal thin film having a structure that does not disturb a touch screen signal is formed in a border area of a cab glass using a sapphire glass or a tempered glass of a smart watch or a smart phone according to the present invention.

As shown in FIG. 5 (a), a metal thin film forming layer 501 is formed in a border region of the cover glass 201, a metal thin film forming layer is formed, and then a printing layer 202 is formed again .

(b) is an enlarged view thereof.

(c) is a plan view of the structure viewed from the upper surface through the cover glass 201, and the metal thin film graphic layer 501 formed at the lower portion of the cover glass includes a plurality of metal thin film graphic elements (502).

The lower printed layer 202 is exposed as a structure in which the metal is etched between the metal thin film figures.

(d) is an enlarged view thereof.

As shown in the enlarged view, the metal thin film shape layer 501 is a structure in which a plurality of metal thin film shapes 502 electrically insulated from each other are formed.

The metal is etched between the metal thin film shapes such that the metal thin film figure is electrically lowered to the adjacent metal thin film figure.

A metal thin film is a metal thin film formed by E-Beam Evaporation or sputtering. The metal is generally coated in a range of several tens of nanometers to several micrometers. Then, the metal thin film is etched in the shape of a figure using a photolithography process It will do.

The kinds of metal are aluminum, gold, platinum. Rhodium, chromium, titanium, etc., or metal alloys.

The shapes of the shapes can be various shapes depending on the design, and the sizes of the shapes can be various sizes ranging from several micrometers to several millimeters.

The electrically insulated portion where the metal between the metal foil geometry is etched can be spaced from a few micrometers to a few hundred micrometers.

6 shows various structures of shapes of metal thin films

The metal thin film figure 502 shown in FIG. 6 is capable of forming any kind of metal thin film figure that is electrically insulated as an example.

Fig. 6 (a) is a metal thin film figure in a rectangular shape, Fig. 6 (b) is a metal thin film figure in a diamond shape, (E) shows that a metal thin film graphic form can be formed with random structures of various types of graphics.

The metal is etched through the metal foil pattern to electrically isolate the touch signal from the electrical insulation part.

It does not interfere with wireless radio signals for Wi-Fi, wireless communication, Bluetooth communication, and the like.

Fig. 7 shows that the intervals between the metal thin film shapes of the cabaglass using the sapphire glass or the tempered glass to be used in the smart watch or smart phone are not uniform and can vary depending on the design.

In general color, it is possible to design various effects such as gradation, and it is possible to express various kinds of gradation, image, and character in the decoration of the metal texture using the metal thin film figure.

In FIG. 7, it is shown that the intervals between the thin metal film patterns of the thin metal film layer 501 are narrow and wide (702), and it is also possible to change the interval gradually or randomly Do.

In this way, it is possible to prevent the phenomenon such as Moire as well as the design effect by randomly making the size and the interval of the metal thin film shape.

FIG. 8 is a view showing the structure of a thin metal film as an element of the present invention up to the display area, thereby enhancing the design of a smart watch in particular.

As shown in FIG. 8, metal thin film figures of the same size or different sizes are formed (502a, 502b) in the edge region of the cover glass 201 including the sapphire glass or the tempered glass, A plurality of metal thin film figures 502c having different sizes or different spacings may be formed to provide images, letters, gradations, or various effects such as intervals or intervals.

The advantage of forming a metal foil in the form of a figure in the display area is to allow the light in the display to be transmitted while partially preserving the reflection of the metal.

However, if the thickness is not set to a certain value, the color of the aluminum does not become the color of the metal, but the color such as a blue color such as a car's tinting film comes out.

In the present invention, when a display screen is transmitted by forming a metal thin film figure in a display area of a cab glass including a sapphire in a display area of an electronic device including a smart phone or a smart watch, a metal color I have come out.

For example, if a square metal thin film figure of 3 micrometers at a pitch of 10 micrometers is formed on the screen of a cabaglass at the top of the display, the area of the metal thin film figure is 9 square micrometers and the area of the pitch is 100 square micrometers, The area occupied by the thin film figure in the display area is about 9%.

This is a structure in which a cover glass having a light transmittance of 91% is mounted on a display, and a metal thin film formed on a cover glass is reflected by external light when the display is turned off.

In this structure, the thickness of the metal thin film is usually kept at 50 nm or more so as to maintain the color of the metal, but any thickness can be used to give a metallic texture.

In addition, it is also possible to make the arrangement of the metal thin film random, thereby eliminating the moire phenomenon. The metal thin film shape, such as the size and shape of the metal thin film, It is possible to decorate the display area of the metal thin film.

The metallic effect on the display area of the cabaglass made of the sapphire glass or the tempered glass of the smart watch according to the present invention is a structure that can not be formed conventionally, and when the screen, which is the biggest problem in the design of the smart watch, Only the screen can be supplemented with metal, such as gold, platinum, or chrome.

The reason why the smartphone screen is displayed in black is that the display portion is usually a black screen because the screen is black when the screen is turned off.

Accordingly, the metal thin film shape according to the present invention maintains the metal texture without disturbing the touch signal in the rim area, and the transmittance is determined by the ratio of the display area and the metal thin film figure in the display area. .

In particular, the same metal can be applied to the edge area of the cab glass and the display area, so that the unity of the overall metal texture can be maintained.

As the metal thin film coating is possible in the edge region by the metal thin film graphic structure which does not disturb the touch signal in the edge region according to the present invention, the metal thin film graphic can metal coating to the display region.

With this structure, the screen of the smart watch, which was conventionally displayed only as a black screen, can be made to have a metal texture.

Furthermore, it is possible to make an image form by arranging a metal thin film figure in a display area of a smart watch, and to make a size, shape or interval of a plurality of metal thin film figures in a display area, Images, patterns and so on.

Therefore, it is possible to provide a design effect by a metal texture on a border area and a display area of a conventional smart watch.

Particularly, in the display area, there is a transparent electrode of the touch screen on the lower part of the cab glass, and the transmission signal and the reception signal of the radio wave signal come out from the transparent electrode of the touch screen. By using a metal thin film having a plurality of electrically isolated metal thin film graphic structures in the display area according to the invention, the touch screen signal is not disturbed, and in particular, it does not interfere with Wi-Fi, Bluetooth or wireless communication signals or GPS signals.

9 shows an example in which the arrangement and shape of various metal thin film figures can be used as various applications of the metal thin film figure, in which the arrangement of the metal thin film figure of the metal thin film shape layer 501 formed on the cover glass 201 is curved The figure having the shape 901 is shown in the drawing.

Various metal effects such as pattern, image, and character of the metal texture are possible as a change of a combination of a straight line and a curved line including the structure of the curve (901) of the arrangement of the metal thin film figure, various size density,

Another structure of the present invention is to add micro-bending to the surface of the sapphire glass at the portion where the metal thin film of the cover glass including the sapphire glass is to be coated, thereby adding light scattering effect or reflection effect.

This may be formed on the outer surface of the sapphire glass when the sapphire glass is mounted on a smart watch or a smart phone as a cover glass, or may be formed on the inner surface facing the display, thereby indicating scattering or refraction of light.

In addition, the fine bending may be formed only in the edge region, or may be formed in the edge region and the display region.

In addition, the micro-bending may be uniform, and may be formed in different sizes or shapes in a border region and a display region, and various geometric shapes such as a random shape, a three-dimensional triangular shape such as a prism, .

FIG. 10 shows a structure in which random micro-bending is formed on one side of a cover glass made of sapphire glass or tempered glass and a metal thin-film shape is formed on the opposite side of micro-bending.

Further, in order to prevent light leakage and the like, a metal thin film forming layer is formed, and then printed with black ink to white ink to colored ink to form a printing layer.

10 shows that the fine bending 1001 is formed in the edge region 102 of the upper surface of the cover glass 201 and the metal thin film pattern layer 501 in which the metal thin film is coated is formed on the lower surface of the edge region of the cover glass The structure in which the print layer 202 is formed is shown in a plan view (a), a sectional view (b), and an enlarged sectional view (c).

In this drawing, a cover glass of a smart phone is shown as an example, and the same is applied to a smart watch.

The micro-bending method for the tempered glass includes sanding and etching using hydrofluoric acid. Etching for forming micro-bending of the sapphire glass is chemical etching using an acid, sanding, plasma etching or the like.

In particular, it is possible to form a regular pattern of fine bending by masking with a photoresist or the like and then performing plasma etching or the like.

As shown in a cross-sectional view as shown in FIG. 10 (c), fine bending 1001 is formed on the upper surface of the cover glass in the edge region 102 of the cover glass, and a metal thin film A pattern layer 501 is formed, and a print layer 202 is formed after the metal thin film pattern layer is formed.

In this drawing, a structure in which a micro-bendable layer is formed on one surface of a cover glass and is formed on the top surface of a cover glass, which is the opposite surface of the metal thin layer, is shown. Or may be formed on the upper and lower surfaces.

Micro-bending can be disordered size or depth of irregularity, regular depth or size of regular, and sizes such as depth and width are possible from several nanometers to tens of micrometers.

Fig. 11 is an enlarged cross-sectional view of the cab glass showing the structure according to the present invention.

As shown in this figure, the cover glass 201 is divided into a frame region 102 and a display region 101. [

The display area is a portion where the lower display screen is displayed, and the border area covers the outer edge of the display or the outer edge of the touch screen.

In the present invention, fine bending (1001) is formed on one side of a cover glass in a border area, a metal thin film forming layer (501) is formed on a bottom surface of a cover glass, and then a printing layer (202) is formed.

Further, while forming a micro-bending layer that causes scattering or refraction of light in the edge region, a mirror surface portion 1002 in which micro-bending is not formed is formed in a part, so that the metal surface can be reflected like a mirror reflection.

Therefore, a part of the edge of the cover glass forms a micro-bending layer by a method such as sanding or plasma etching, and a mirror surface is formed as a part of the edge of the cover glass to mix light scattering or refraction or reflection.

12, a process of partially forming fine bending and forming a metal thin film layer and a print layer is shown.

FIG. 12 shows a masking structure for partially forming micro-bending. In this embodiment, masking is formed using printing, photoresist, or the like except for a portion where fine bending should be formed in a cover glass made of sapphire glass or tempered glass. One structure is shown in plan view (a) and cross-sectional view (b).

As shown in the figure, a masking layer 1203 is formed on one side 1202 of the cover glass 201 including a display area 101 and an edge of the edge area 102, and a part of the edge area forms micro- The fine bending portion 1201 is exposed without being masked.

13, the portion 1201 to be formed with micro-bending in a cover glass made of sapphire glass or tempered glass is sanded or chemically etched, or is etched by a plasma etching method or the like The structure in which the fine bending 1001 is formed is shown in a plan view (a) and a sectional view (b).

As shown in the figure, a masking layer 1203 is formed on one side 1202 of the cover glass 201 including a display area 101 and an edge of the edge area 102, and a part of the edge area forms micro- The fine bending portion 1001 is formed while the fine bending portion 1201 is exposed without being masked.

The micro-bend structure may be randomly formed from a few nanometers to several tens of micrometers randomly by a method such as sanding or a regular pattern such as a lattice pattern is formed by a photolithography method , A plasma etching method, or the like.

The cross section of the fine bend may be a random structure or may have a regular cross sectional structure such as a hemisphere.

Fig. 14 is a sectional view showing a part of the cover glass made of sapphire glass or tempered glass to which micro-bending should be formed is subjected to masking for forming micro-bending part in a partially sanding or chemical etching process, 1001 are formed and then the masking layer is peeled off is shown in a plan view (a) and a cross-sectional view (b).

As shown in the drawing, the display area 101 where the masking layer was formed and the edge 1002 of the edge area 102 remain mirror-like without micro-bending.

Fig. 15 shows a part of the cover glass made of sapphire glass or tempered glass to be subjected to micro-bending after masking to form micro-bending part. The part to be micro-bent is sanded or chemically etched, or micro- (A) and a cross-sectional view (b) show the structure in which the masking layer is formed and then a thin metal film layer 501 is formed on the bottom of the cover glass.

As shown in the drawing, in the structure in which the micro-bend 1001 is formed in the edge region 102 or the edge 1002 is left in the mirror surface without micro-bending, A thin film figure 501 is formed.

16 shows a structure in which the metal thin film forming layer 501 is formed on the lower part of the cab glass 201 and then the printing layer 202 for preventing light leakage is formed again in black, white or colored, (b).

According to the above-described method, micro-bending can be formed on one surface of a sapphire glass or tempered glass, and a metal thin film layer can be formed.

FIG. 17 is a cross-sectional view showing a structure in which micro-bending is formed on the upper surface, the lower surface, the lower surface, or both surfaces of the cover glass, or a metal thin film figure can be formed as a whole.

As shown in the figure, fine bending 1001 is formed on the upper and lower surfaces of the cover glass 201 in the display area 101 and the border area 102. On the lower surface of the cover glass, Is formed in the region 101 and the edge region 102,

Such a structure can be applied to electronic devices such as smart phones and smart watches having wireless communication functions and touch screen functions while making various designs of light scattering and refraction effects and effects of metal thin films.

In Fig. 18, fine bending is formed on the lower surface of the cab glass, a metal thin film figure is formed, and then a printing layer is formed.

As shown in the figure, fine bending 1001 is formed on the lower surface of the cover glass, fine bending is formed, then the metal thin film forming layer 501 is formed, and then the printing layer 202 is formed.

With this structure, it is possible to form a fine bending layer on the upper, lower, or both sides of the cover glass and to form a thin metal film layer on the lower surface of the cover glass.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof,

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the following claims.

In the smart watch 100 display area 101,
The rim area (102) the cover glass (201)
The print layer 202, the adhesive layer 203,
The touch screen (204) display (205)
The transparent electrode portion 301, the signal electrode line 302,
Metal thin film forming layer 501 Metal thin film forming 502
Narrow gap 701 wide gap 702,
Curve 901 Micro-bend 1001 < RTI ID = 0.0 >
One surface 1202 of the mirror surface portion 1002,
The masking layer 1203,

Claims

An Extrnal cover of an electronic device using a radio wave signal and equipped with a touch screen,
A transparent substrate is used as the material of the outer covering,
A metal thin film is formed on one surface of a transparent substrate,
The metal thin film is a metal thin film figure formed in the shape of a figure,
The metal thin film pattern is electrically insulated from the adjacent metal thin film pattern,
The metal thin film figure is formed in the edge region of the outer cover,
Wherein the metal thin film figure is formed in the display area of the outer cover.

The method according to claim 1,
The radio wave signal is a radio wave signal transmitted / received through an antenna (Anthena) for wireless communication,
And a radio wave signal for operating the electrostatic-type touch screen.

The method according to claim 1,
An electronic device using a radio wave signal and having a display includes an electronic device using a radio wave signal, which includes a Smart Phone, a Smart Watch, a tablet, a notebook, and a TV Exterior cover.

The method according to claim 1,
An Extrnal cover for an electronic device using a radio wave signal and having a display,
Wherein the outer cover is a front transparent substrate covering the display, and the transparent substrate includes tempered glass and sapphire glass.

The method according to claim 1,
An Extrnal cover for an electronic device using a radio wave signal and having a display,
A transparent substrate is used as the material of the outer covering,
The micro-bending having a depth and a width ranging from several nanometers to several tens of micrometers on all or a part including the border region and the display region is formed on the upper surface, lower surface, or both surfaces of the transparent substrate in the form of regular or irregular Wherein the electromagnetic wave signal is formed by using a radio wave signal.

The method according to claim 1,
An Extrnal cover for an electronic device using a radio wave signal and having a display,
A transparent substrate is used as the material of the outer covering,
The micro-bending having a depth and a width ranging from several nanometers to several tens of micrometers on all or a part including the border region and the display region is formed on the upper surface, lower surface, or both surfaces of the transparent substrate in the form of regular or irregular Respectively,
A metal thin film layer is formed on one surface of the transparent substrate,
Wherein the metal thin film layer is formed on a part of the surface where micro-bending is formed.

Sapphire glass or tempered glass is used as an outer cover glass cover glass,
A metal thin film is formed on one surface of the cab glass,
The metal thin film is a metal thin film figure formed in the shape of a figure,
The metal thin film pattern is electrically insulated from the adjacent metal thin film pattern,
The metal thin film figure is formed in the edge region of the outer cover,
Wherein a cover glass having a metal thin film figure formed on a display area of an outer cover is mounted on a front display, and a smart watch having a display, a touch screen function and a wireless communication function.

The method of claim 7,
Sapphire glass or tempered glass is used as an outer cover glass cover glass,
The micro-bending having a depth and a width ranging from several nanometers to several tens of micrometers on all or a part of the top and bottom or both sides of the cover glass including the border region and the display region is in the form of Regular or Irregular Respectively,
After the fine bending is formed in the cover glass, a metal thin film is formed on one side of the cover glass including all or a part of the fine bending,
The metal thin film is a metal thin film figure formed in the shape of a figure,
The metal thin film pattern is electrically insulated from the adjacent metal thin film pattern,
The metal thin film figure is formed in the edge region of the outer cover,
Wherein a cover glass having a metal thin film figure formed in a display area of an outer cover is mounted on a front display, and a Smart watch having a touch screen function and a wireless communication function.

The method of claim 7,
Sapphire glass or tempered glass is used as an outer cover glass cover glass,
A metal thin film is formed on one surface of the cab glass,
The metal thin film is a metal thin film figure formed in the shape of a figure,
The metal thin film pattern is electrically insulated from the adjacent metal thin film pattern,
The metal thin film figure is formed in the edge region of the outer cover,
A metal thin film figure is formed in a display area of an outer cover,
A variety of metallic figures such as a pattern, an image, and a letter of a metal texture are formed as a combination of a straight line and a curved line including a curve structure of the arrangement of the metallic thin film figure, Smart Watch with function and wireless communication function.