KR20090003993A - Method of manufacturing translucent film with reflection function for touch pannel and translucent film with reflection function manufactured by the method - Google Patents

Abstract

A translucent double functional film and a manufacturing method thereof are provided to implement double functions as a film of one layer by successively depositing a translucent conductive metal layer and a transparent metal oxide layer. An Ag electrode(5) is pasted in the upstairs outer side of a rear panel(3) surface. A dot spacer(4) is coated with interval of 5 mm in order to separate the upstairs electrode. A functional film(2) has a transparent conductivity function. A functional film is adhered at the edge of the dot spacer. A protective film(1) is laminated on the whole surface and has the high gradient of 3H. The functional film has one function by the transparent metal oxide and a translucent reflecting function by metal.

Description

Method of manufacturing a translucent bi-functional film for a touch panel having a reflective function and a translucent bi-functional film for a touch panel having a reflective function produced by the present invention Method of manufacturing translucent film with reflection function for touch pannel and translucent film with reflection function manufactured by the method}

FIG. 1 shows the number of film layers without using an adhesive layer and a separate film layer having a visible light reflection function by directly forming a coating film mixed with a metal and a metal oxide simultaneously having a visible light reflection function and an electrode function according to the present invention. It is a schematic diagram showing a touch panel having a reduced 4-layer structure or a touch panel located in front of the LCD panel.

2 is a schematic view showing a conventional touch panel having an eight-layer structure having a support plate of glass or plastic sheet and a visible light reflecting functional film layer.

Figure 3 shows a film structure coated with a metal layer and a metal oxide layer in a transparent polymer film in order to control the transmittance and surface electrical resistance.

4A and 4B are enlarged photographs of a surface and a cross section of a film having a visible light reflecting function composed of a multilayer of a metal layer and a metal oxide layer at a magnification of 100,000 with a scanning electron microscope (SEM).

FIG. 5 is a photograph of a four-layer touch panel keypad cell product made using a film on which PET has a film having both a visible light reflection function by a metal layer and a transparent conductivity by a metal oxide layer.

6A and 6B are graphs illustrating the transmittance and chromaticity coordinates of a touch panel keypad made of a film having both a visible light reflection function and an electrode function used in a touch panel keypad, and various appearance colors may be adjusted by changing chromaticity coordinates.

-Explanation of symbols for the main parts of the drawings

1: Surface protection film 2: Functional film

3: rear panel 4: dot spacer

5 silver electrode 31 polarizing film

32: metal 33: transparent metal oxide

The present invention provides a method of manufacturing a semi-transparent dual functional film for a touch panel having a reflective function that can be employed in display imaging devices such as LCD monitors, PDAs (Personal Data Assistance), automobile navigation, cell phones, and the like. It relates to a semi-transparent bi-functional film for a touch panel having a reflection function produced by the.

In line with the development of technology and increasing consumer demand, the market for products coated with various functional materials on plastic films or sheets replacing silicon substrates or glass substrates in order to supply products with light weight and low price of various electronic products is rapidly increasing. There is a growing trend.

A representative example using such a product is a touch screen. The touch panel cell, which constitutes an important part of the touch screen, is composed of a glass substrate, a glass substrate electrode, a flexible film electrode, a glass substrate electrode, a flexible film electrode, a plastic substrate electrode, a flexible film electrode, and a flexible film electrode. There is a tendency to become. In particular, the touch panel cell is capable of inputting or outputting information by touching a display function displayed on the display, and being widely applied to various living environments, as well as a simple touch function and an optional additional function.

In particular, the rapid change in the mobile mobile device and LCD market can lead the market by differentiating it with other products by selecting a model suitable for the demand of the consumer and adding new functionality. Various attempts have been made to add additional optional features. A typical example of this is a mobile mobile device. Existing products can be slimmed and lightened by switching from a button method to a touch method, and a semi-transparent function and an optional additional function for displaying a touchpad as needed can be added.

In order to add a differentiated selective additional function to a mobile hairstyling device having a touch function, it is necessary to reconfigure functional films in a hardware touch panel as well as a software image display as well as a transparent touch function. However, to add such functionality, an additional film layer is required or a separate touch cell must be configured.

Of course, when including touch function for input / output of data on the surface of LCD such as computer monitor, notebook, navigation, etc., transparent metal oxide without deformation of polarizer in polarizing film layer on the front of monitor without additional arrangement of touch cell. By adding a touch cell function by stacking a metal layer with a thin film, a screen configuration having a slim touch function is possible.

The visible light transmittance in the wavelength range of 400 nm to 700 nm is affected by reflection and intrinsic absorption coefficient of the material in the medium for incident light, interfacial reflection between layers and properties of the material constituting each layer. The biggest variables affecting are the characteristics of the raw materials and the thickness of the coating film constituting the substrate (film).

The optical film or optical sheet may include poly methyl methacrylate (PMMA), poly carbonate (PC), cyclo-olefin polymer (COP), polyethersulfone (PES), polysulfone (PS) and TAC / PVA / Various optical materials such as all polarizing films composed of TAC materials are used, and haze is 1% or less, has excellent mechanical strength, and film thickness is 50 μm to 188 μm. In the case of sheet, a material having a thickness of 0.2m or more is used, and an AR layer that reduces reflection light is coated or a hard coated film having a hardness of B to HB and 1H to 4H according to the use and need of the product. use.

As a method of coating the reflective materials on the polymer plastic film to have a reflection (mirror) function, physical deposition of metals such as Ag, Cu, Al, Sn, Cr, Ti, etc., by sputtering or e-beam The dry method, the wet method, and the electroless / electrolytic plating method, the wet method, and the metal nanoparticles are dispersed in a hardener and a solvent, such as gravure printing and rotary screen printing.

However, these methods can control the transmittance by simply adjusting the thickness of the film, and the plating method and the printing method have a weak adhesive strength, so the surface should be coated with a protective film, and the surface resistance depends on the content of the metal particles and the adhesive in the dispersion solvent. It is impossible to control the film surface resistance and the visible light transmittance at the same time.

In addition, in the related art, research has been conducted to use a translucent electrode while having a reflective function for a touch panel by adjusting a film thickness using only metal materials such as silver, chromium, and aluminum metal on a transparent glass or plastic substrate. In cell fabrication, coating of a film having a surface resistance of 500 Ω / □ while maintaining the visible light transmittance of 40% to 50% is impossible.

Therefore, in order to simultaneously control the surface resistance and the visible light transmittance of the film, the surface of the polymer film is applied by plasma chemical vapor deposition method applying a positive and negative DC bias of several KV around the polymer film at low temperature conditions where the polymer film process is possible using an organometallic source. Tin oxide, titanium oxide, and indium oxide, which are transparent conductive metal oxides, and these metals are properly mixed with each other, or metals such as Ag, Cu, Al, Cr, Ti, etc. are mixed with these metal oxides, or constitute a film having a multi layer. It is possible by doing.

PVA (poly vinyl alcohol) used in the polarizing film is lower than the heat resistance of the general optical film may be deformed by the heavy molecules or ions containing heat from the outside during the deposition process. In particular, when sputtering is used to deposit a transparent conductive film and a semi-transparent metal film, the etched heavy molecules reach the surface of the polymer film in a state of containing thermal energy and are delivered by ion bombardment on the surface. Due to the high energy delivered to the PVA layer, the lattice of the polarizer is damaged by the deformation of the PVA layer, and thus the polarization function is easily lost.

The present invention eliminates process problems by constructing a touch panel with a film having multilayer film deposition using pulse or continuous ECR (Electron Cyclotron Resonance) in order to deposit a film having a reflection function and surface electroconductivity function against external visible light. By forming a touch cell by laminating a transparent metal oxide and a metal layer without deformation of the polarizer on the isotropic or anisotropic polarizing film layer used on the front side of the monitor, the transmittance and surface resistance can be simultaneously controlled to have two functions as one film. The purpose is to make it.

In addition, the present invention converts the existing mobile mobile device that is a button method to the touch method while adding a function using a semi-transparent reflective film at the same time using the reflective function when the power is turned off the LCD screen, the touch when the power is turned on the LCD screen In order to give the differentiated selective additional function of the screen function, the adhesive layer is needed to adhere the functional film layer, and the newton in the product which is represented by the uneven thickness of the adhesive and the process of stretching to 6 or 8 layers including the adhesive layer in total. This is solved by improving the structure with a touch panel that uses a single layer of film to reduce the touch feeling caused by the ring phenomenon and the thickened film layer.The transparent metal oxide and the metal layer are applied to the polarizing film layer on the front of the monitor without deformation of the polarizer. Add touch cell function by stacking to have slim touch function The purpose is to allow you to configure the monitor.

In addition, an object of the present invention is to allow a thin touch key pad to be used by mixing a opaque metal and a metal oxide or coating a multilayer conductive film composed of a double layer on a single film, thereby reducing the process rate and reducing the defective rate.

In addition, the present invention is to increase the film layer having a visible light reflecting function and thereby forming an adhesive layer so that the film layer is thickened so that the touch feeling is not degraded or the touch function is reduced due to the enlargement of the touch area when inputting information by touch. Its purpose is to.

In addition, the present invention provides a process normal difficulty and cells produced by replacing the hard coating protective film layer used on the product surface with a thin film in order to reduce the thickness of the touch panel thickened by the increase of the additional functional film layer and the formation of the adhesive layer. The purpose of the present invention is to prevent distortion caused by a non-uniform tension.

In addition, the present invention is a low-temperature coating of the transparent or semi-transparent conductive layer on the anisotropic or isotropic polarizing film without damage or distortion of the polarizer to add an electroconductive function directly to all polarizing films used LCD, such as notebooks and monitors to separate touch cells The purpose is to be able to give a touch directly without using.

In addition, the present invention has a low heat resistance of the polarization grating layer made of PVA (poly vinyl alcohol) in the polarizing film when the transparent conductive film is deposited by the sputter method, the polymer film surface by the heavy molecules or ions containing heat etched from the target The energy transmitted to the inside of the film by the impact of ions and the energy transmitted from the surface is high, and the lattice of the polarizer is damaged due to the deformation of the PVA layer. By doing so, the object of the present invention is to allow a touch cell to be formed on the front of the LCD without damaging the polarizer.

In addition, the present invention adds a dual function by adding a contact electrode and a semi-transparent reflection function by coating a metal film capable of reflecting visible light on the upper flexible transparent conductive film layer without separately using a film having a visible light reflection function, and a separate reflection function. In order to solve the Newton's ring phenomenon caused by the reflected light generated by the thickness difference of the interlayer air layer formation and the adhesive layer in the process because it must be bonded in order to fix the use of the film having the purpose.

Translucent dual functional film manufacturing method for a touch panel having a reflective function according to the present invention for achieving the above object is an optical film or a general-purpose film using a pulse or continuous ECR plasma having a DC bias (bias) Thin chemically depositing a semi-transparent conductive metal layer on a film having visible light transmission, one of polarizing film, glass, and plastic sheet; And adjusting the composition ratio of the applied DC bias and the supply gas to continuously chemically deposit a transparent conductive metal oxide on the film and to coat it with a multi layer.

By stacking a surface protective film on top of the film, the touch panel may be configured to minimize the thickness of the film constituting the upper electrode layer of the touch cell without using a reflective functional film.

By controlling the components of the translucent conductive metal and the transparent conductive metal oxide by the composition ratio of the DC bias and the feed gas to form a multilayer film on the film at the same time can have a variety of visible light transmittance.

The film is an isotropic or anisotropic polarizing film which is deposited on the film by the ECR room temperature chemical vapor deposition method without the change of the polarizer, thereby depositing a semi-transparent conductive metal or transparent conductive metal oxide, which is used as a touch cell electrode simultaneously with the polarization function. It can be given.

Hereinafter, the present invention will be described in detail.

Conventionally, a base plate electrode layer which adheres a thin transparent conductive film to a substrate using an adhesive on a transparent conductive electrode plate coated with ITO (Indium Tin Oxide) on a glass substrate having a thickness of 1 mm or a light plastic sheet, does not work It is composed of several layers such as high permeable polymer dot spacer, silver electrode layer, transparent electrode film, adhesive layer, visible light reflecting film layer, adhesive layer, hard coating protective film layer so that electrode and electrode are separated from each other. Although a touch cell is manufactured through a process, the present invention manufactures a touch cell by simultaneously stacking a metal having a reflective function and a transparent metal oxide layer on one film.

The present invention is coated with a transparent conductive metal oxide on a plastic sheet or a glass substrate, including a substrate and a coating layer in the wavelength of visible light can be used as a plastic plate having a thickness of 1 mm with a transmittance of 86% or more PMMA containing PET (Poly methyl methacrylate), polycarbonate (PC), cyclo-olefin polymer (COP), polyether sulfone (PES), polysulfone (PS) or compounds thereof, as well as the compounds thereof, are not limited to these materials.

The present invention is a transparent metal oxide having a transparent conductivity and a semi-transparent reflection function and a metal coating by chemical vapor deposition method, the transparent conductive metal oxide is a tin oxide (SnO ₂ ) doped with fluorine (F) substituted indium (SnO ₂ ), zinc oxide ( ZnO), gallium oxide (Ga ₂ O ₃ ), titanium oxide (TiO ₂ ) or a mixture of two or more of these, a metal having a semi-transparent reflection function Ag, Cu, Al, Sn, Cr, For example, single or complex such as Ti.

The present invention reduces the number of film layers constituting the touch cell by directly adding a touch cell by laminating a transparent metal oxide and a metal layer on the anisotropic or isotropic polarizing film layer on the front of all the monitors in which LCD is used, without the polarizer deformation. In addition to simplifying the manufacturing process, it is possible to manufacture a slimmed touch cell having a touch function.

The touch cell according to the present invention is composed of four layers including an adhesive layer by using a bi-functional film coated with a film of one layer having a transparent electrode and a semi-transparent reflection function at the same time, thereby forming a touch cell. Since the overall thickness of the film layer becomes thinner, it is possible to replace the outer top film with a lot of external contact with a thick film.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 shows the number of film layers without using an adhesive layer and a separate film layer having a visible light reflection function by directly forming a coating film mixed with a metal and a metal oxide simultaneously having a visible light reflection function and an electrode function according to the present invention. Figure 4 is a schematic view showing a touch panel having a 4-layer structure with a reduced front panel or a touch panel located in front of the LCD panel.

Metal oxide is directly coated on a sheet having a thickness of 1%, transparent to visible light, such as PET, PC, and PMMA, which is transparent to visible light, and has a visible light transmittance of 87%, turbidity of 1% or less, including a coating layer, and color coordinates a * = ± 2 , a silver electrode having a touch function and pasting the silver electrode 5 on the upper layer outer surface of the rear panel 3, which is a lower layer electrode having a uniformity of 500? (5) Transparent conductive function of double functional electrode film or anisotropic and isotropic polarizing film on the upper side with acrylic adhesive on the edge of the layer coated with 5mm interval dot spacers 4 to separate the upper electrode inside Bonding the functional film (2) having and the protective film (1) having a high hardness of 3H on the surface to prepare a touch cell.

The upper bifunctional electrode film or the functional film (2) of the isotropic or anisotropic polarizing film has a transparent 188 μm thickness having a visible light transmittance of 90% or more, turbidity of 1% or less, and chromaticity coordinates a * = ± 0.5 and b * = ± 0.5 in PET. After the deposition of several nm of the metal layer on the PET film having a transparent metal oxide layer of 100 nm to 300 nm, in the case of anisotropic or isotropic polarizing film, visible light transmittance of 44.0%, chromaticity coordinates a * = ± 0.5, b * A multi-layered deposition or composite metal oxide deposition layer having a uniform surface electric resistance of 500 Ω / □ ± 5% or less on a transparent to transparent 188 μm thick film having a thickness of 3.8 and having a visible light transmittance of 30% to 60% It consists of one film which has a reflectance by an opaque metal layer.

In particular, the bi-functional functional film coated with a semi-transparent reflection function by a metal and a transparent metal oxide is applied to a single metal or a composite metal film such as Ag, Cu, Al, Sn, Cr, Ti, etc. to realize various colors in appearance. Film formation is possible.

The surface protection film (1) layer used on the outer surface of the touch screen panel is a hard-coated film having a surface hardness of 2H or more on the surface of PET film having a thickness of 100 μm or more, having a transmittance of 90% or more, turbidity of 1% or less, and chromaticity. Films having coordinates a * = ± 0.5, b * = ± 0.5 or less can be used.

In addition, the conventional touch cell is a difficult manufacturing process because a thick film can not be used as a surface protection film because the semi-transparent reflective film is added separately as the film required to configure the touch cell is composed of a multilayer structure The distortion of the surface of the touch cell could occur, but since the total thickness of the touch cell is thinned by using the functional film 2 having a dual function of one layer, a thick protective film of 100 μm or more is used as the surface protective film 1. Can be used.

2 is a schematic view showing a conventional touch panel having an eight-layer structure having a support plate of a glass or plastic sheet and a visible light reflecting functional film layer.

A film 20 having a transparent conductive metal oxide film is bonded to a PC or PMMA plastic support plate having visible light high transmittance with an acrylic adhesive 21, and to the surface layer having conductivity of the film 20 against an external pressure. A dot spacer 4 for buffering and separating the two electrodes and a silver electrode 5 are applied to the edge of the edge, and the adhesion between the transparent top electrode 10 and the film 2 having a reflection (mirror) function is achieved. It is composed of a layer of acrylic adhesive (11) and a protective film (1) having a hardness at the top of the protective film (1) or in order to maintain a smooth touch with the film 20 layer, which is the lower electrode, by touch. The thickness of the film layer and the adhesive layer corresponding to the film 2, the adhesive 11 and the electrode 10 should be thin.

FIG. 3 is a semi-transparent reflecting function on the transparent PET film or the polarizing film 31 to replace the film layer and the adhesive layer corresponding to the film 2 layer, the electrode 10, and the adhesive 11 layer shown in FIG. The metal 32 layer is coated by chemical vapor deposition to improve adhesion, and then the transparent metal oxide layer 33 is coated or the metal and metal oxide are simultaneously deposited to function as the metal layer 32 and the transparent metal oxide layer 33. It is one piece of film given.

Example 1

4 is a tin oxide layer after a short time chemical vapor deposition of a tin metal layer on a PET film having a transparent 188 μm thickness having a visible light transmittance of 89.7%, a haze of 0.7, a chromaticity coordinate of a * = ± 0.5, and b * = ± 0.6. The surface and the cross-section of the film on which the film was deposited are composed of fine grains of 30 nm and the surface resistivity of the film consisting of a 30 nm thick tin metal layer and a 240 nm thick transparent metal oxide layer. Deposition layers having semi-transparent reflecting functions of? /? ± 5%, visible light transmittance of 60%, chromaticity coordinates of a = -3 and b = 2.5 were formed in one manufacturing process.

Comparative Example 1

Aluminum on two kinds of glare and non-glare PET films with transparent 188 μm thickness with 89.7% visible light transmittance, 0.7 haze, and chromaticity coordinates a * = ± 0.5, b * = ± 0.6 (Al) and tin (Sn) were used to coat the translucent metal layer and tin oxide on the surface to compare the physical properties for use in the touch keypad. Sample # 1 of Table 1 was a thick film of tin metal deposited on a diffused PET film, followed by a tin oxide deposited film, which coated a mirror functional film with 36.6% visible light transmittance and a color coordinate of b * = 5.7. . Sample number # 4 in Table 1 is a data obtained by comparing a thin metal layer deposited on a film of the same type of diffuse reflection substrate as that of # 1. As the substrate film itself is diffuse reflection, the reflection function is slightly decreased.

Samples # 2, # 3, and # 5 of Table 1 compared the chromaticity coordinates and the transmittance of the film deposited with tin oxide after depositing a film having various transmittance ranges by controlling the thickness of the tin metal layer on the reflective PET film. Visible light transmittance and chromaticity coordinates were found to be affected by the thickness of the tin metal layer.

Sample # 6 of FIG. 1 is a functional film in which an aluminum metal layer is deposited on the reflective PET film with the same thickness as that of Sample # 5, and then a transparent metal oxide is deposited. The sample # 6 may have different chromaticity coordinates under the influence of different metal layers. . When aluminum metal is used as a reflective functional film, the blue chromaticity value is large and yellow color does not appear.

Table 1 below shows the transmittance and surface resistance of the translucent touch panel film having a mirror function deposited on the optical PET film. Sample Number Permeability [%] Surface resistance [Ω / □] Film thickness [㎛] Color coordinates a *, b * Raw PET film type #One 36.6 507 188 -4.0, 5.7 Non-glare #2 42.0 476 188 -3.5, 4.2 Glade # 3 52.6 517 188 -2.0, 2.2 Glade #4 48.1 478 188 -3.1, 3.7 Non-glare # 5 58.2 549 188 -2.5, 2.4 Glade # 6 57.0 523 188 -3.5, 0.8 Glade

Example 2

FIG. 5 is a photograph showing a touch cell for a touch key pad made by constructing a touch panel with the structure shown in FIG. 1 using the dual functional film obtained in Example 1. FIG. As shown in FIG. 1, a film having a thickness of 3H and a protective film having a thickness of 125 μm used for the upper surface layer may be used, and a film having a thickness of 125 μm may be used. This did not appear at all.

Comparative Example 2

In Comparative Example 2, a dual-functional film in which the touch cell for the touch key pad described in Example 2 was deposited using tin and aluminum as the reflective metal layer was fabricated, and the overall transmittance and chromaticity coordinates of the touch cell were compared. . Although the transmittance was constant at 50% by depositing the same thickness of the semi-transparent metal layer, the change in chromaticity coordinates due to the different metal layers was shown. When tin metal is used as the semi-transparent reflection function, the chromaticity coordinates are a = -4.2 and b = 6.7, and the yellow chromaticity coordinates are high. When aluminum metal is used, touch cells with chromaticity coordinates a = -3.8 and b = 0.5 can be created. have.

Example 3

Table 2 shows an isotropic polarizing film composed of TAC / PVA / TAC material with a thickness of 180 µm and a transparent metal oxide deposited on the polarizing film without damaging the internal polarizer by chemical vapor deposition at room temperature. The transmittance and chromaticity coordinates of the functional polarizing film are shown. Specimens # 1 to # 3 were functionalized with 41%, 40%, 38% transmittance by varying the treatment time while depositing only a transparent metal oxide layer to control the transmittance on a raw polarizing film with 44% transmittance. The film was obtained, and it can be seen that the transmittance due to the lamination of the transparent film layer is slightly lower than the transmittance of the polarizing film as the raw material without damaging the polarizer.

When the polarizer is warped or deformed by heat, the transmittance and chromaticity coordinates show a big difference, but this phenomenon hardly occurs. Specimen # 4 is a functional film having a two-layer structure by first depositing a tin metal layer on a polarizing film and then laminating a transparent tin metal oxide layer. The surface resistance is 530Ω / □, and transmittance and chromaticity coordinates are 35% and a * =-, respectively. 2.6, b * = 5.8.

Sample Number Permeability [%] Surface resistance [Ω / □] Film thickness [㎛] Chromaticity Coordinates a *, b * Raw film type Raw TAC / PVA / TAC film 44.0 0 180 -0.50, 3.8 Glade #One 41.0 530 180 -0.60, 6.0 Glade #2 40.0 520 180  0.06, 5.0 Glade # 3 38.0 550 180 -0.21, 4.6 Glade #4 35.0 530 180 -2.60, 5.8 Glade

Table 2 above shows the transmissivity and surface resistance of the film on which the translucent and transparent film having the reflective function is deposited on the polarizing film.

Therefore, according to the present invention, in the present invention, a transparent conductive metal oxide is deposited on an optical PET film or an optical polarizing film to be used as an electrode for a touch panel, and a semi-transparent conductive metal layer having a reflective function on one film is pulsed or continuous. It is deposited by ECR (Electron Cyclotron Resonance) plasma and the transparent metal oxide layer is deposited on the upper layer to make the touch panel with the mirror function and the conductivity of 500Ω / □. It is possible to reduce the distortion and Newton ring phenomena, and the relatively thin thickness of the upper film layer constituting the touch cell allows the use of a thick film as a protective film has the effect of producing a durable product.

In addition, the present invention is directly conductive to the polarizing film of the LCD monitor without the need to attach additional touch cells by forming a touch cell by directly laminating a conductive metal oxide on the anisotropic or isotropic polarizing film of the front LCD is used without a polarizer deformation. By providing a function, an effect of configuring a touch cell inside can be obtained.

Claims (5)

Thin chemical vapor deposition of a semi-transparent conductive metal layer on a film having visible light transmittance, which is one of an optical film, a general purpose film, a polarizing film, glass, and a plastic sheet, using a pulsed or continuous ECR plasma with a DC bias. step; And Controlling the composition ratio of the applied DC bias and the supply gas to continuously chemically deposit a transparent conductive metal oxide on the film and to coat the multilayer film; Semi-transparent dual functional film production method for a touch panel having a reflection function, comprising a. The method of claim 1, Semi-transparent for the touch panel having a reflective function characterized in that the surface protective film is laminated on top of the film to form a touch panel that minimizes the thickness of the film constituting the upper electrode layer of the touch cell without using a reflective functional film. Dual functional film production method of. The method of claim 1, Touch with a reflection function, characterized in that by controlling the components of the translucent conductive metal and the transparent conductive metal oxide by the composition ratio of the DC bias and the supply gas to form a multilayer film on the film at the same time to have a variety of visible light transmittance Translucent dual functional film manufacturing method for panels. The method of claim 1, The film is an isotropic or anisotropic polarizing film which is deposited on the film by the ECR room temperature chemical vapor deposition method without the change of the polarizer, thereby depositing a semi-transparent conductive metal or transparent conductive metal oxide, which is used as a touch cell electrode simultaneously with the polarization function. A translucent dual functional film manufacturing method for a touch panel having a reflection function, which is provided. A translucent dual functional film for a touch panel having a reflective function prepared by any one of claims 1 to 4.

Images