WO2015037844A1 - 새로운 형태의 절연부를 이용한 터치 스크린 및 이의 제조방법 - Google Patents
새로운 형태의 절연부를 이용한 터치 스크린 및 이의 제조방법 Download PDFInfo
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- WO2015037844A1 WO2015037844A1 PCT/KR2014/008029 KR2014008029W WO2015037844A1 WO 2015037844 A1 WO2015037844 A1 WO 2015037844A1 KR 2014008029 W KR2014008029 W KR 2014008029W WO 2015037844 A1 WO2015037844 A1 WO 2015037844A1
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- conductive pattern
- touch screen
- thickness
- transparent
- transparent electrode
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
-
- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
Definitions
- the present invention relates to a touch screen using a new type of insulation and a method of manufacturing the same. More specifically, the present invention relates to a touch screen and a method of manufacturing the same to form the insulating portion of the touch screen in the shape of an H.
- the single-sided single-sided touch screen is formed by forming conductive patterns on the upper and lower substrates, and laminating them via an insulating layer.
- the manufacturing process of the single-sided single-sheet touch screen is largely composed of the steps of forming a metal mesh pattern, forming an insulating layer, and forming a bridge electrode.
- the x-axis pattern and the y-axis pattern are formed on one surface. Among these, the x-axis mesh pattern is connected to each other, but the y-axis pattern is broken.
- the single-sided single-sheet touch screen requires an insulating layer to separate the x-y axis.
- an overbridge electrode is formed by using a transparent electrode made of a conductive polymer or silver nanowire to connect the broken y-axis pattern.
- the transparent electrode pattern is formed because the surface energy of the metal mesh substrate and the insulating layer is different from each other, the line width and thickness of the transparent electrode do not appear uniformly in the metal mesh substrate and the insulating layer. This is because the contact angle formed by the transparent electrode ink on the two materials is different due to the difference in the surface energy of the metal mesh substrate and the transparent insulating layer. Accordingly, there is a need for an insulating layer capable of forming a transparent electrode in a uniform pattern while separating the metal mesh connected in the lateral direction (x-axis) from the metal mesh in the y-axis.
- Conventional invention discloses a technique for forming a connection conductive layer for connecting electrode layers in grooves by an inkjet method in Korean Patent Laid-Open Publication No. 2012-0031896, but it is impossible to form an insulation layer pattern with a constant line width and thickness.
- the present invention is to solve the problems of the prior art as described above,
- the electrical conductivity of the transparent electrode is formed by separating the metal mesh connected in the lateral direction (x-axis) from the metal mesh in the longitudinal direction (y-axis) and forming an insulating layer pattern in an insulating layer shape that can form a transparent electrode in a uniform pattern. And constant transmittance and haze, and to prevent spreading problems caused by the difference in surface energy of the insulating layer and the metal mesh substrate.
- a single-sided single-sided touch screen formed.
- first conductive pattern on the substrate, the first conductive pattern including at least two pattern rows provided in a lateral direction (x-axis) and including two or more conductive pattern regions electrically connected thereto; A second conductive pattern on the same surface as the surface on which the first conductive pattern is provided, the second conductive pattern including two or more conductive pattern regions that are not electrically connected to the first conductive pattern and are not electrically connected to each other; Forming; In order to electrically connect the conductive pattern regions of the second conductive pattern in the longitudinal direction (y-axis), a transparent insulation portion having an empty space formed at a portion in contact with the second conductive pattern at a portion electrically connected to the first conductive pattern as well. Forming; And forming a transparent electrode electrically connecting the conductive pattern regions of the second conductive pattern in a longitudinal direction (y-axis).
- the metal mesh connected in the lateral direction (x-axis) can be separated from the metal mesh in the longitudinal direction (y-axis), and at the same time, a transparent electrode can be formed in a uniform pattern, through which the electrical conductivity, transmittance and haze of the y-axis electrode can be formed.
- the projection electrode is pulled to one side due to the spreading problem caused by the difference in the surface energy of the insulating layer and the metal mesh substrate, and the resistance of the specific portion is increased to prevent the electrical conductivity of the y-axis electrode from decreasing. It can be effective.
- FIG. 1 is a view showing a touch screen using a conventional insulating layer.
- Figure 2a is a diagram showing the structure of an insulating layer of an embodiment of the present invention.
- Figure 2b is a view showing the structure of an insulating layer of another embodiment of the present invention.
- 3A is a diagram illustrating a touch screen using an insulating layer according to an embodiment of the present invention.
- 3B is a diagram illustrating a touch screen using an insulating layer according to another embodiment of the present invention.
- FIG. 4 is a diagram illustrating a touch screen using an insulating layer according to another embodiment of the present invention.
- 5A is a diagram illustrating a touch screen using an insulating layer according to another embodiment of the present invention.
- 5B is a diagram illustrating a touch screen using an insulating layer according to another embodiment of the present invention.
- FIG. 6 is a diagram illustrating a touch screen using an insulating layer according to another embodiment of the present invention.
- FIG. 7A illustrates a structure in which a conductive pattern of a touch screen is formed.
- FIG. 7B is a diagram illustrating another structure in which a conductive pattern of a touch screen is formed.
- the present inventors can improve the performance of the transparent electrode by manufacturing a single-sided single-sheet touch screen using a transparent insulating portion having a specific shape. Revealed the facts. Accordingly, the present invention is to provide a single-sided single-sheet touch screen and a manufacturing method thereof using a new type of insulation.
- the longitudinal direction (y axis) and the lateral direction (x axis) are expressions for indicating directions relative to each other, and when one direction is determined, the remaining direction may be determined with respect to the direction. This is because the x- and y-axes are not absolute when the touch screen is rotated.
- the longitudinal direction may mean the left and right directions, the vertical direction
- the longitudinal direction and the transverse direction are not necessarily at right angles to each other, but may be at an angle that is acceptable in the art.
- an angle formed between the longitudinal direction and the transverse direction may be 80 degrees to 100 degrees.
- the term "conductive pattern" refers to a case having conductivity, and forming a pattern shape in a specific form instead of the front layer.
- the conductive pattern may include two or more conductive pattern regions, which will be described later, and may include two or more pattern rows formed of two or more conductive pattern regions.
- a metal pattern may be applied as the conductive pattern.
- the metal pattern is interpreted to include not only the metal, but also a pattern including an additive in addition to the metal.
- the conductive pattern region means a region in which the aforementioned conductive pattern is formed to have a predetermined area.
- the pattern which has a certain area is arranged in one direction.
- the patterns having a predetermined area do not necessarily have to be arranged in a straight line, and they may be arranged in a specific direction so that they can be electrically connected by a direct or transparent electrode.
- transparent means that the light transmittance is 50% or more, preferably 75% or more, more preferably 85% or more.
- FIG. 7A illustrates an upper surface of a surface on which the first conductive pattern P1 and the second conductive pattern P2 are formed.
- the conductive pattern region P1 of the first conductive pattern P1 is electrically connected to each other. Able to know.
- the two conductive pattern regions P2 and P2 'included in the second conductive pattern are not electrically connected to each other. This is because they are in contact with the first conductive pattern if they are electrically connected to each other.
- a transparent insulation portion is provided in an area expected to contact the first conductive pattern as shown in FIG.
- the two conductive pattern regions P2 of the second conductive pattern are electrically connected by forming a transparent electrode on the insulating portion.
- the thickness of the transparent insulating portion is not particularly limited, but preferably 400 to 1200 nm.
- the width of the transparent insulating portion is not particularly limited as long as it can insulate the transparent electrode and the first conductive pattern.
- the transparent insulating portion is not particularly limited as long as it has an insulating property and is a transparent material, but may be preferably formed using an epoxy insulating ink having excellent insulating properties.
- the transparent insulating portion is characterized in that the empty space is formed in the portion in contact with the second conductive pattern.
- the transparent lead portion is provided between the transparent electrode and the first conductive pattern, and serves to help the transparent electrode electrically connect the conductive pattern regions of the second conductive pattern in the longitudinal direction (y-axis).
- the contact angle of the ink used to form the transparent electrode is higher in the transparent insulating portion than in the conductive pattern region, as shown in FIG. There was a problem that appeared wide in the narrow and conductive pattern area.
- the transparent insulation portion of the present invention is formed with an empty space in contact with the second conductive pattern, it can be made to have a certain shape when the transparent electrode is formed.
- the transparent insulation portion of the present invention in which the empty space is formed may be in the shape of an H shape, or may be a shape in which upper and lower portions of the H shape are blocked.
- the transparent insulation portion in which the empty space of the present invention is formed can be seen in detail through FIG. 2.
- the transparent insulating portion of the present invention has an H-shaped shape as shown in FIG. 2A, and an empty space is formed at an upper portion and a lower portion thereof.
- the contact angle of the conductive ink is lower in the conductive pattern region than in the insulating portion as shown in FIGS. A transparent electrode is formed.
- irregularities may be formed in the interruption portion of the transparent insulation portion having the H-shaped shape. As shown in FIG. 6, irregularities may be formed in a portion of the middle portion of the H-shaped shape. Since the portion of the insulating portion where the conductive ink rises is different from the thickness of the conductive pattern region, a step of about 400 to 1000 um is generated, which causes a problem that the formed transparent electrode is broken or the connection is weakened, thereby lowering the conductivity. If irregularities are formed in the portion of the middle portion of the H-shaped shape, the boundary line between the insulating portion and the conductive pattern region is formed in various curved shapes rather than a date, thereby preventing such a problem from occurring.
- the empty space is not formed at the upper and lower ends of the shape as shown in Fig. 2 (a), as shown in Fig. 2 (b) it is possible to create a shape in which the top and bottom of the H-shaped block is blocked.
- an empty space is formed inside the transparent insulation portion, and the partition and the interruption portion surround the periphery thereof.
- the terminal of the transparent electrode is more conductive than in the case of using the H-type transparent insulator in which the empty space is formed in the upper and lower portions as shown in FIG. Since it can be prevented from spreading further toward the pattern region, a transparent electrode of a more uniform size can be formed.
- the thickness of the partition wall of the transparent insulation portion in which no empty space is formed in the upper and lower portions may be thicker than the thickness of the stop portion.
- the line width of the transparent electrode can be uniformly adjusted.
- the thickness of the partition wall is formed to be 200 nm or more thicker than the thickness of the stop portion. If the thickness of the partition wall is less than 200 nm than the thickness of the stop portion, there is a problem that the transparent electrode formed to overflow.
- the thickness of the stop portion is preferably 400 ⁇ 1000nm. If the thickness of the stop portion is less than 400nm may be in contact with the conductive pattern, and if the thickness is higher than 1000nm there is a problem that the conductivity is lowered due to the thickness step.
- the thickness of the partition wall is preferably 600 ⁇ 1200nm.
- the thickness of the interruption portion may be lowered by partially removing pixels during inkjet printing.
- the transparent electrode of the present invention is formed on the transparent insulating portion, and may be used without particular limitation as long as the material has a high light transmittance, and preferably may be formed using a material that is 75% or more, 80% or more, or 85% or more. have. Specifically, a conductive polymer such as PEDOT (PSD) or silver nanowires may be used as the transparent electrode.
- PEDOT PEDOT
- silver nanowires may be used as the transparent electrode.
- At least one of the transparent insulating portion and the transparent electrode of the present invention is formed by an inkjet method or a dispensing method.
- the transparent electrode of the present invention is formed on the transparent insulating portion of the present invention can be formed in a thin thickness, preferably has a thickness of 50 to 100 nm. Since the transparent electrode of the present invention has a thin thickness, it has a light transmittance of 85% or more, preferably 85 to 95%, and thus has a transparent characteristic. Through this, the transparent electrode of the present invention can be visually concealed and visibility is improved.
- the material of the conductive pattern may be used that can exhibit a predetermined or more conductivity.
- the material of the conductive pattern there is no transmittance of the material itself, but a material capable of light transmission by line width and light transmittance may be used.
- the conductive pattern may be formed of a single film or a multilayer film including silver, copper, aluminum, neodymium, molybdenum, nickel, or an alloy thereof.
- copper particles coated with silver may be used as the conductive pattern material.
- the light transmittance of the entire pattern including the first conductive pattern and the second conductive pattern may range from 85% to 99%.
- the light transmittance may be uniform in the entire region including the first conductive pattern and the second conductive pattern, the transparent insulating portion and the transparent electrode.
- the conductive pattern, the transparent insulation portion, and the transparent electrode may be visually concealed.
- the light transmittance deviation with respect to the light transmittance average value of any circle having a diameter of 1 inch in the entire area including the first conductive pattern and the second conductive pattern, the transparent insulating portion, and the transparent electrode is 7% or less or 5% or less.
- Each component may be arranged to be.
- the light transmittance in some areas of the first conductive pattern and the second conductive pattern may be adjusted differently from the rest. For example, by increasing the light transmittance of the conductive pattern itself in a region corresponding to the transparent electrode, the visibility due to the arrangement of the transparent electrode can be compensated for.
- the light transmittance may be adjusted by adjusting the pitch of the conductive pattern or breaking the pattern.
- the present invention provides a manufacturing method for manufacturing the above-described single-sided single-sheet touch screen.
- the manufacturing method comprises the steps of forming a first conductive pattern on the substrate in a transverse direction (x-axis), the first conductive pattern comprising at least two pattern strings comprising two or more conductive pattern regions electrically connected; A second conductive pattern on the same surface as the surface on which the first conductive pattern is provided, the second conductive pattern including two or more conductive pattern regions that are not electrically connected to the first conductive pattern and are not electrically connected to each other; Forming; In order to electrically connect the conductive pattern regions of the second conductive pattern in the longitudinal direction (y-axis), a transparent insulation portion having an empty space formed at a portion in contact with the second conductive pattern at a portion electrically connected to the first conductive pattern as well. Forming; And
- the present invention may further include a step of performing heat curing for 10 minutes to 30 minutes at a temperature of 120 ⁇ 150 °C in the oven after the transparent insulating portion is formed.
- the characteristics of the transparent insulating part and the transparent electrode used in the manufacturing method are the same as the transparent insulating part used in the single-sided single-sheet touch screen, of course.
- the first conductive pattern and the second conductive pattern is a) forming a conductive layer on the substrate; b) forming an etching resist pattern on the conductive layer; And c) etching the conductive layer using the etching resist pattern to form a conductive pattern.
- the conductive pattern having a line width smaller than the width of the etching resist pattern may be formed by over-etching the conductive layer in step c).
- step c) removing the etching resist pattern; Or e) reforming the etching resist pattern to cover the conductive pattern.
- the method of forming the first conductive pattern and the second conductive pattern may be appropriately selected according to the field to which the method of manufacturing the conductive pattern is to be applied.
- the insulating part pattern is formed into an H shape as shown in FIG. Formed.
- the insulation pattern was formed to a thickness of 600 nm, which was thermally cured at 120 ° C. for 20 minutes in an oven. Thereafter, the touch screen was manufactured by forming a transparent electrode connecting the second conductive pattern to a thickness of 100 nm using the silver nanowires.
- a touch screen was manufactured in the same manner as in Example 1, except that the insulating part pattern was formed in a shape in which upper and lower portions of the H-shape were blocked as shown in FIG.
- the insulating part pattern is formed in a shape in which the upper and lower parts of the H-shape are blocked as shown in FIG. 2B, the thickness of the partition wall is 1000 nm, and the pixel of the stop part is removed by 25% in the inkjet process.
- the touch screen was manufactured in the same manner as in Example 2, except that the thickness of the stop portion was 500 nm.
- a touch screen was manufactured in the same manner as in Example 1, except that the insulating part pattern was formed such that a convex surface was formed in the middle portion of the H shape as shown in FIG.
- a touch screen was manufactured in the same manner as in Example 1, except that an insulating part having a rectangular shape having a thickness of 600 nm was formed by a conventional insulating part forming method.
- the line widths of the transparent electrode on the insulating portion and the conductive pattern were different, the pattern was not uniformly formed, and the electrical conductivity of the transparent electrode was also not uniform.
- the transparent electrode in the touch screen is easily visible, and visibility is not improved.
- the H-shaped insulated portions of the transparent electrodes do not spread on the conductive patterns, so that the pattern of the transparent electrodes is less than that of the first embodiment.
- the thickness of the transparent electrode was more uniform because the height of the interruption portion of the insulating part was lower than that of the partition wall, especially in Example 3.
- Example 4 In addition, in the touch screen of Example 4, the phenomenon of breaking of the transparent electrode was remarkably reduced as compared with Example 1.
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Claims (30)
- 기재;상기 기재 상에 횡 방향(x축)으로 구비되고, 전기적으로 연결된 2 이상의 전도성 패턴 영역을 포함하는 패턴열을 적어도 2개 포함하는 제1 전도성 패턴;상기 기재의, 상기 제1 전도성 패턴이 구비된 면과 동일한 면 상에 구비되고, 상기 제1 전도성 패턴과 전기적으로 연결되지 않으며, 서로 전기적으로 연결되지 않은 2 이상의 전도성 패턴 영역을 포함하는 제2 전도성 패턴;상기 제2 전도성 패턴의 전도성 패턴 영역들을 종 방향(y축)으로 전기적으로 연결하는 투명 전극; 및상기 투명 전극과 상기 제1 전도성 패턴 사이에 구비되어, 상기 투명 전극과 상기 제1 전도성 패턴을 전기적으로 절연하는 투명 절연부를 포함하고,상기 투명 절연부는 제2 전도성 패턴과 접하는 부분에 빈 공간이 형성되어 이루어진 단면 1매형 터치 스크린.
- 청구항 1에 있어서,상기 투명 절연부는 H 형의 형상인 것을 특징으로 하는 단면 1매형 터치 스크린.
- 청구항 2에 있어서,상기 투명 절연부는 H 형의 형상의 중단부에 요철이 형성된 것을 특징으로 하는 단면 1매형 터치 스크린.
- 청구항 1에 있어서,상기 투명 절연부는 H 형의 형상의 상부 및 하부가 막혀 있는 형상인 것을 특징으로 하는 단면 1매형 터치 스크린.
- 청구항 4에 있어서,상기 투명 절연부는 H 형의 형상의 격벽의 두께가 중단부의 두께보다 두꺼운 것을 특징으로 하는 단면 1매형 터치 스크린.
- 청구항 1에 있어서,상기 투명 절연부의 두께는 400~1200nm인 것을 특징으로 하는 단면 1매형 터치 스크린.
- 청구항 5에 있어서,상기 격벽의 두께가 상기 중단부의 두께보다 200nm 이상 높은 것을 특징으로 하는 단면 1매형 터치 스크린.
- 청구항 7에 있어서,상기 중단부의 두께가 400~1000nm이고, 상기 격벽의 두께가 600~1200nm 것을 특징으로 하는 단면 1매형 터치 스크린.
- 청구항 7에 있어서,상기 투명 절연부 및 상기 투명 전극 중 하나 이상이 잉크젯 방식 또는 디스펜싱 방식에 의하여 형성된 것을 특징으로 하는 단면 1매형 터치 스크린.
- 청구항 1에 있어서,상기 투명 전극은 전도성 고분자 또는 은 나노와이어(Ag nanowire)를 포함하는 것을 특징으로 하는 단면 1매형 터치 스크린.
- 청구항 1에 있어서,상기 투명 절연부는 에폭시 잉크로 형성되는 것을 특징으로 하는 단면 1매형 터치 스크린.
- 청구항 1에 있어서,상기 투명 전극의 두께가 50 내지 100 nm 인 것을 특징으로 하는 단면 1매형 터치 스크린.
- 청구항 1에 있어서,상기 투명 전극의 광투과율이 85 내지 95% 인 것을 특징으로 하는 단면 1매형 터치 스크린.
- 기재 상에 횡 방향(x축)으로 구비되고, 전기적으로 연결된 2 이상의 전도성 패턴 영역을 포함하는 패턴열을 적어도 2개 포함하는 제1 전도성 패턴을 형성하는 단계;상기 기재의, 상기 제1 전도성 패턴이 구비된 면과 동일한 면 상에, 상기 제1 전도성 패턴과 전기적으로 연결되지 않으며, 서로 전기적으로 연결되지 않은 2 이상의 전도성 패턴 영역을 포함하는 제2 전도성 패턴을 형성하는 단계;상기 제2 전도성 패턴의 전도성 패턴 영역들을 종 방향(y축)으로 전기적으로 연결하기 위하여, 제1 전도성 패턴과도 전기적으로 연결되는 부분에 제2 전도성 패턴과 접하는 부분에 빈 공간이 형성된 투명 절연부를 형성하는 단계; 및상기 제2 전도성 패턴의 전도성 패턴 영역들을 종 방향(y축)으로 전기적으로 연결하는 투명 전극을 형성하는 단계를 포함하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 14에 있어서,상기 투명 절연부는 H 형의 형상인 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 15에 있어서,상기 투명 절연부는 H 형의 형상의 중단부에 요철이 형성된 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 15에 있어서,상기 투명 절연부는 H 형의 형상의 상부 및 하부가 막혀 있는 형상인 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 17에 있어서,상기 투명 절연부는 H 형의 형상의 격벽의 두께가 중단부의 두께보다 두꺼운 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 16에 있어서,상기 투명 절연부의 두께는 400~1200nm인 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 18에 있어서,상기 격벽의 두께가 상기 중단부의 두께보다 200nm 이상 높은 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 20에 있어서,상기 중단부의 두께가 400~1000nm이고, 상기 격벽의 두께가 600~1200nm 인 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 14에 있어서,상기 투명 절연부 및 상기 투명 전극 중 적어도 하나는 잉크젯 방식 또는 디스펜싱 방식에 의하여 형성된 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 14에 있어서,상기 투명 전극은 전도성 고분자 또는 은 나노와이어(Ag nanowire)를 포함하는 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 14에 있어서,상기 투명 절연부는 에폭시 잉크로 형성되는 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 14에 있어서,상기 투명 전극의 두께가 50 내지 100 nm 인 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 14에 있어서,상기 투명 전극의 광투과율이 85 내지 95% 인 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 14에 있어서,상기 제1 전도성 패턴 및 상기 제2 전도성 패턴은a) 기재 상에 도전층을 형성하는 단계;b) 상기 도전층 상에 에칭 레지스트 패턴을 형성(forming)하는 단계; 및c) 상기 에칭 레지스트 패턴을 이용하여 상기 도전층을 에칭하여 전도성 패턴을 형성하는 단계를 포함하는 방법에 의하여 형성하는 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 27에 있어서,상기 c) 단계에서 상기 도전층을 오버 에칭(over-etching)함으로써 상기 에칭 레지스트 패턴의 폭보다 작은 선폭을 갖는 전도성 패턴을 형성하는 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 27에 있어서,상기 c) 단계 이후에 d) 상기 에칭 레지스트 패턴을 제거하는 단계; 또는 e) 상기 전도성 패턴을 덮도록(covering) 상기 에칭 레지스트 패턴을 재형성(reforming)하는 단계를 추가로 포함하는 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
- 청구항 14에 있어서,상기 투명 절연부가 형성된 후, 오븐에서 120~150℃의 온도로 10분 ~30분간 열경화를 실시하는 단계를 더 포함하는 것을 특징으로 하는 단면 1매형 터치 스크린의 제조방법.
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| US14/911,955 US9811225B2 (en) | 2013-09-10 | 2014-08-28 | Touchscreen having shaped insulation part and method for manufacturing same |
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| KR20120092004A (ko) * | 2010-12-29 | 2012-08-20 | 주식회사 엘지화학 | 터치 스크린 및 이의 제조방법 |
| KR20130033533A (ko) * | 2011-09-27 | 2013-04-04 | 이엘케이 주식회사 | 터치스크린 패널 및 그 제조방법 |
| KR20130060450A (ko) * | 2011-11-30 | 2013-06-10 | 솔렌시스 주식회사 | 터치 스크린 패널 및 이의 제조 방법 |
| KR20130060779A (ko) * | 2011-11-30 | 2013-06-10 | 삼성전자주식회사 | 터치스크린 및 그 제조 방법 |
| KR20130074380A (ko) * | 2011-12-26 | 2013-07-04 | (주) 태양기전 | 터치 스크린 패널 |
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| KR20120092004A (ko) * | 2010-12-29 | 2012-08-20 | 주식회사 엘지화학 | 터치 스크린 및 이의 제조방법 |
| KR20130033533A (ko) * | 2011-09-27 | 2013-04-04 | 이엘케이 주식회사 | 터치스크린 패널 및 그 제조방법 |
| KR20130060450A (ko) * | 2011-11-30 | 2013-06-10 | 솔렌시스 주식회사 | 터치 스크린 패널 및 이의 제조 방법 |
| KR20130060779A (ko) * | 2011-11-30 | 2013-06-10 | 삼성전자주식회사 | 터치스크린 및 그 제조 방법 |
| KR20130074380A (ko) * | 2011-12-26 | 2013-07-04 | (주) 태양기전 | 터치 스크린 패널 |
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