KR20130051316A - Touch pannel and manufacturing method thereof - Google Patents

Touch pannel and manufacturing method thereof Download PDF

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Publication number
KR20130051316A
KR20130051316A KR1020110116594A KR20110116594A KR20130051316A KR 20130051316 A KR20130051316 A KR 20130051316A KR 1020110116594 A KR1020110116594 A KR 1020110116594A KR 20110116594 A KR20110116594 A KR 20110116594A KR 20130051316 A KR20130051316 A KR 20130051316A
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South Korea
Prior art keywords
pattern layer
insulating pattern
transparent substrate
touch panel
electrode
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KR1020110116594A
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Korean (ko)
Inventor
임정열
이규상
이영우
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삼성전기주식회사
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Priority to KR1020110116594A priority Critical patent/KR20130051316A/en
Publication of KR20130051316A publication Critical patent/KR20130051316A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

The touch panel of the present invention comprises at least one transparent substrate; And an electrode including a plurality of unit electrode lines on one or both surfaces of the transparent substrate, wherein the electrode is formed by sequentially stacking a first insulating pattern layer, a metal pattern, and a second insulating pattern layer from the transparent substrate. Structure.
In the touch panel of the present invention, the boundary regions between the unit electrode lines are spaced apart from each other in the length direction, and the second insulating pattern layer fills the metal pattern.
The touch panel of the present invention connects the spaced areas separating each unit electrode line with an insulating layer, thereby preventing linear pattern visibility and moiré phenomena caused by the spaced areas, thereby improving the visibility of the touch panel. There is an effect that can improve the display quality.

Description

Touch panel and manufacturing method therefor {TOUCH PANNEL AND MANUFACTURING METHOD THEREOF}

The present invention relates to a touch panel and a method of manufacturing the same.

With the development of computers using digital technology, auxiliary devices of computers are being developed together. Personal computers, portable transmission devices, and other personal information processing devices use various input devices such as a keyboard and a mouse And performs text and graphics processing.

However, as the use of computers is gradually increasing due to the rapid progress of the information society, there is a problem that it is difficult to efficiently operate a product by using only a keyboard and a mouse which are currently playing an input device. Therefore, there is an increasing need for a device that is simple and less error-prone, and that allows anyone to easily input information.

In addition, the technology related to the input device has shifted its attention to high reliability, durability, innovation, design and processing related technology beyond the level that meets the general function, and in order to achieve this purpose, information input such as text, graphics, etc. Touch panel has been developed as a possible input device.

The touch panel is a display surface of an electronic organizer, a liquid crystal display device (LCD), a plasma display panel (PDP), an electroluminescence (El), and an image display device such as a cathode ray tube (CRT). It is installed in the, and is used to allow the user to select the desired information while viewing the image display device.

The types of touch panel are resistive type, capacitive type, electro-magnetic type, SAW type, surface acoustic wave type, and infrared type. Separated by. These various types of touch panels are employed in electronic products in consideration of problems of signal amplification, differences in resolution, difficulty in design and processing technology, optical characteristics, electrical characteristics, mechanical characteristics, environmental characteristics, input characteristics, durability and economical efficiency Currently, the most widely used methods are resistive touch panels and capacitive touch panels.

In the case of the resistive touch panel, the upper and lower transparent electrode films are arranged to be spaced apart from each other by a spacer and to be in contact with each other by being pressed. When the upper touch panel on which the upper transparent electrode film is formed is pressed by an input means such as a finger or a pen, the upper and lower transparent electrode films are energized, and the control unit recognizes the voltage change according to the resistance value change at the position and recognizes the contact coordinates. The digital resistive film type and the analog resistive film type are available.

In the capacitive touch panel, the upper substrate on which the first electrode pattern is formed and the lower substrate on which the second electrode pattern is formed are spaced apart from each other, and an insulating material is inserted so that the first electrode pattern and the second electrode pattern do not contact each other. In addition, an electrode wiring connected to the electrode pattern is formed on the upper substrate and the lower substrate. The electrode wiring transmits a capacitance change generated in the first electrode pattern and the second electrode pattern to the controller as the input unit contacts the touch screen.

Conventionally, a transparent electrode is formed using a conductive polymer such as ITO (Indium Tin Oxide) or polyethylenedioxythiophene / polystyrenesulfonate (PEDOT / PSS). In the case of ITO, electrical conductivity is excellent, but indium (raw), which is a raw material, is expensive as a rare earth metal, and is expected to be depleted within the next 10 years. The conductive polymer is a soybean material to replace ITO, and has excellent flexibility and easy processing, but has a problem in that electrical conductivity is poor.

For the same reason as described in Korean Laid-Open Patent Publication No. 2011-0060100 (published on June 8, 2011), a research is being conducted to form a transparent electrode using a metal. Compared with the conductive polymer, the electrical conductivity is much better, and the supply and demand is smooth. However, when the transparent electrode is formed of metal, transparency of the touch panel is a problem due to the opaque metal color. Accordingly, studies are being made to improve the visibility of touch panels by forming metals in a mesh structure. Here, when the transparent electrode is formed of a mesh, a plurality of independent electrodes are formed by being spaced apart from each other in the longitudinal direction of the electrode line constituting the mesh.

However, when spaced apart from each other in the longitudinal direction of the electrode line constituting the mesh, there is a problem that a linear pattern may be formed in the space in which the mesh exists. The linear pattern may be directly recognized by the spaced apart linear pattern, or the moiré pattern may be generated by interacting with the spaced linear pattern and the linear pattern of the unit pixel.

The linear pattern and moiré generated by such a separation may reduce the visibility of the touch panel and thus reduce the display quality of the touch panel.

SUMMARY OF THE INVENTION An object of the present invention is to provide a touch panel capable of preventing pattern recognition and moiré phenomena due to separation in a metal mesh constituting an electrode in order to solve the above problems.

Another object of the present invention to provide a method of manufacturing a touch panel that can achieve the above object.

The touch panel of the present invention for achieving the above object is at least one transparent substrate; And an electrode including a plurality of unit electrode lines on one or both surfaces of the transparent substrate, wherein the electrode is formed by sequentially stacking a first insulating pattern layer, a metal pattern, and a second insulating pattern layer from the transparent substrate. Structure.

In the touch panel of the present invention, the boundary regions between the unit electrode lines are spaced apart from each other in the length direction, and the second insulating pattern layer fills the metal pattern.

In the touch panel of the present invention, the unit electrode line is formed in a mesh shape, and the first insulating pattern layer and the second insulating pattern layer are formed of an oxide or nitride.

In addition, the manufacturing method of the touch panel according to the present invention comprises the steps of providing at least one transparent substrate; Forming a first insulating pattern layer on an electrode formation region set on one or both surfaces of the transparent substrate; Performing a patterning process of forming a metal pattern on an upper surface of the first insulating pattern layer; And forming a second insulating pattern layer covering the metal pattern.

In the method of manufacturing a touch panel according to the present invention, the transparent substrate is formed of a material having a supporting force and transparency as the transparent substrate.

In the method of manufacturing the touch panel according to the present invention, the forming of the first insulating pattern layer includes a plurality of unit electrode lines as the electrode forming region, and the unit electrode lines are formed in a mesh form.

In the method of manufacturing a touch panel according to the present invention, the forming of the first insulating pattern layer may include forming a photoresist pattern that exposes the electrode formation region and covers the remaining region by using a lithography method; And forming a first insulating pattern layer by filling nitride or oxide in an electrode formation region between the photoresist patterns.

In the method of manufacturing a touch panel according to the present invention, the performing of the patterning process may include forming a metal layer on the upper surface of the first insulating pattern layer by PVD or CVD; And etching a region separating the unit electrode lines with respect to the metal layer to form metal patterns spaced in the longitudinal direction.

In the method of manufacturing the touch panel according to the present invention, in the forming of the second insulating pattern layer, nitride or oxide is used as the second insulating pattern layer, and the gap between the unit electrode lines is filled.

The forming of the second insulating pattern layer in the method of manufacturing a touch panel according to the present invention further includes performing an annealing process to planarize the surface of the second insulating pattern layer.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed in a conventional, dictionary sense, and should not be construed as defining the concept of a term appropriately in order to describe the inventor in his or her best way. It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

The touch panel of the present invention connects an interval region that separates each unit electrode line with respect to an electrode with an insulator oxide or nitride, thereby preventing linear pattern recognition and moiré phenomena due to the gap between conventional transparent metal mesh electrodes. Can be.

In addition, the manufacturing method of the touch panel according to the present invention has the effect of providing a touch panel that can improve the display quality by preventing the linear pattern recognition and moiré phenomenon of the touch panel.

1A is a perspective view of a touch panel according to an embodiment of the present invention.
1B is a cross-sectional view of the touch panel according to the embodiment of the present invention shown in FIG. 1A.
1C is an enlarged view of a portion “A” of FIG. 1B.
2A is a plan view illustrating a first electrode formed on one surface of an upper transparent substrate constituting a touch panel according to an exemplary embodiment of the present invention.
FIG. 2B is an enlarged view of a portion “B” of FIG. 2A; FIG.
FIG. 2C is a cross-sectional view illustrating a cross section taken along line II of FIG. 2B.
3A is a plan view illustrating a second electrode formed on one surface of a lower transparent substrate constituting a touch panel according to an exemplary embodiment of the present invention.
FIG. 3B is an enlarged view of portion “C” of FIG. 3A;
3C is a cross-sectional view taken along the line II-II of FIG. 3B.
4 is a flowchart illustrating a method of manufacturing a touch panel according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. Also, the terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1A is a perspective view of a touch panel according to an embodiment of the present invention, FIG. 1B is a cross-sectional view of the touch panel according to the embodiment of the present invention shown in FIG. 1A, and FIG. 1C is an enlarged view of part “A” of FIG. 1B. Drawing.

As shown in FIG. 1A, a touch panel according to an exemplary embodiment of the present invention will be described with an example in which transparent substrates 110 and 160 having electrodes 120 and 130 formed on one surface thereof are bonded to each other by an adhesive 180. .

That is, the first electrode 120 is formed on one surface of the upper transparent substrate 110, the second electrode 130 is formed on one surface of the lower transparent substrate 160, and the first electrode 120 and the second electrode are formed. The upper transparent substrate 110 and the lower transparent substrate 260 may be bonded to each other by the adhesive material 180 so that the 130 may correspond to each other. Of course, the touch panel of the present invention may have a form in which electrodes are formed on both surfaces of an upper surface and a lower surface of one transparent substrate.

The transparent substrates 110 and 160 are divided into an active region and a bezel region. The active regions are portions in which the electrodes 120 and 130 are formed to recognize a touch of an input means, and are provided at the center of the transparent substrates 110 and 160. Trace lines 150 and 170 extending from the electrodes 120 and 130 are formed at edges of the active region.

In this case, the transparent substrates 110 and 160 should have a supporting force capable of supporting the electrodes 120 and 130 and the trace lines 150 and 160 and transparency to allow a user to recognize an image provided by an image display device (not shown). In view of such support and transparency, the material of the transparent substrates 110 and 160 is polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), polyether sulfone ( PES), Cyclic Olefin Polymer (COC), Triacetylcellulose (TAC) Film, Polyvinyl Alcohol (PVA) Film, Polyimide (PI) Film, Polystyrene (PS), Biaxially Stretched Polystyrene (Kresin) Containing biaxially oriented PS (BOPS), glass or tempered glass, etc., but is not necessarily limited thereto.

Here, the adhesive 180 is bonded to the front or corner region between the upper transparent substrate 110 and the lower transparent substrate 160, as shown in Figure 1b, the material of the adhesive 180 is not particularly limited, It is preferable to use an optical clear adhesive (OCA).

When the input means is a touch, the first electrode 120 and the second electrode 130 generate a signal in the touched electrode region so that the controller can recognize the touch coordinates.

As illustrated in FIG. 1C, the first electrode 120 and the second electrode 130 according to the exemplary embodiment of the present invention sequentially form the first insulating pattern layers 121 and 131 and the metal pattern from one surface of the transparent substrates 110 and 160. 122 and 132 and the second insulating pattern layers 123 and 133.

Specifically, the first electrode 120 is formed on the first insulating pattern layer 121, the first insulating pattern layer 121 formed in the mesh (mesh) form on the lower surface of the upper transparent substrate 110 for the circuit configuration The metal pattern 122 and the second insulating pattern layer 123 covering the metal pattern 122 are included.

In addition, the second electrode 130 is disposed on the first insulating pattern layer 131 and the first insulating pattern layer 131 formed in a mesh shape on the upper surface of the lower transparent substrate 160 corresponding to the first electrode 120. The metal pattern 132 formed for the circuit configuration, and the second insulating pattern layer 133 covering the metal pattern 132.

In this case, the first insulating pattern layers 121 and 131 and the second insulating pattern layers 123 and 133 may be insulating layers made of oxide or nitride, and the metal patterns 122 and 132 may be formed of a metal material having electrical conductivity.

The first electrode 120 is formed by repeating the first unit electrode line in parallel, and the second electrode 130 is formed by repeating the second unit electrode line in parallel and arranged, the first unit electrode line and the second unit The electrode wire may be formed of various types of meshes.

The internal structure of the touch panel according to the embodiment of the present invention configured as described above will be described in detail with reference to FIGS. 2 and 3.

First, as shown in FIG. 2A, the first electrode 120 formed on the lower surface of the upper transparent substrate 110 constituting the touch panel according to the embodiment of the present invention has a plurality of first unit electrode lines in mesh form. And a first trace line 150 extending from one end of each first unit electrode line.

In order to form a circuit configuration having a boundary at “B”, which is an area between each first unit electrode line, the first electrode 120 includes a first insulating pattern layer having a metal pattern 122 as shown in FIG. 2B. The circuit 121 may be separated from each other by the 121 and second insulating pattern layers 123 to constitute a circuit including the first unit electrode lines.

At this time, as shown in Figure 2c, the gap (gap) between the metal pattern 122 may be formed at a spacing interval of at least 1 ㎛ ~ several hundred ㎛ in the longitudinal direction of the line I-I according to the visibility and optimization of the circuit function. have.

In addition, the second electrode 130 formed on the upper surface of the lower transparent substrate 160 constituting the touch panel according to the embodiment of the present invention has a plurality of second unit electrode lines in a mesh form as shown in FIG. 3A. And a second trace line 170 extending from one end of each second unit electrode line.

In order to form a circuit configuration having a boundary at “C”, which is an area between each second unit electrode line, the second electrode 130 includes a first insulating pattern layer having a metal pattern 132 as shown in FIG. 3B. 131 and the second insulating pattern layer 133 are separated from each other to form a circuit composed of each first unit electrode line.

The spacing between each of the metal patterns 132 is the same as the spacing between the metal patterns 122 shown in FIG. 2C, at least in the longitudinal direction of the II-II line according to the optimization of visibility and circuit function as shown in FIG. 3C. It may be formed at intervals of 1 μm to several hundred μm.

The upper transparent substrate 110 and the lower transparent substrate 160 configured as described above are bonded to each other by the first electrode 120 and the second electrode 130 corresponding to each other through the adhesive material 180 to form the touch panel 100. Can be formed.

In this case, the first electrode 120 and the second electrode 130 have regions B and C separating the unit electrode lines from the first insulating pattern layer 131 and the second insulating pattern layer 133. The metal patterns 122 and 132 are spaced apart from each other, but the spaces B and C separating the unit electrode lines are connected to each other using an insulator oxide or nitride so that the spaces are not visually recognized.

In this way, the space between the metal patterns 122 and 132 is not visually recognized between the first electrode 120 and the second electrode 130, and thus the linear pattern due to the space between the metal patterns 122 and 132 and the periodicity due to the unit pixel of the image display device are determined. Moiré phenomenon caused by mutual influence of can be prevented.

Therefore, the touch panel according to the present invention can prevent linear pattern visibility and moiré phenomena due to the separation of the metal pattern, thereby improving the visibility of the touch panel, thereby improving the display quality of the touch panel.

Hereinafter, a method of manufacturing a touch panel according to an embodiment of the present invention will be described with reference to FIG. 4. 4 is a flowchart illustrating a method of manufacturing a touch panel according to an embodiment of the present invention.

In the method of manufacturing a touch panel according to an embodiment of the present invention, first, an upper transparent substrate 110 and a lower transparent substrate 160 are prepared (S410).

In detail, the upper transparent substrate 110 and the lower transparent substrate 160 are materials having a supporting force and transparency capable of supporting the electrodes 120 and 130 and the electrode wirings 150 and 160, and polyethylene terephthalate (PET) and polycarbonate ( PC), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), polyether sulfone (PES), cyclic olefin polymer (COC), triacetylcellulose (TAC) film, polyvinyl alcohol (PVA) film , A polyimide (PI) film, polystyrene (PS), biaxially oriented polystyrene (K resin-containing biaxially oriented PS; BOPS), glass or tempered glass, or the like. Of course, the upper transparent substrate 110 and the lower transparent substrate 160 is not limited to the above materials, any material may be used as long as the material having a supporting force and transparency.

After the upper transparent substrate 110 and the lower transparent substrate 160 are provided, the first insulating pattern layers 121 and 131 are formed on one or both sides of the electrode forming region of each of the upper and lower transparent substrates 110 and 160. (S420).

In order to form the first insulating pattern layers 121 and 131, for example, by using a lithography method, first, an electrode forming region is exposed to one surface of the upper transparent substrate 110 and the lower transparent substrate 160, and then the remaining regions are formed. A photoresist pattern (not shown) covering the gap is formed.

Thereafter, the electrode formation regions between the photoresist patterns are filled with nitrides such as SiN or oxides such as SiO 2 , CuO, AlO 2 , and the like, to form first insulating pattern layers 121 and 131 illustrated in FIGS. 2C and 3C.

After forming the first insulating pattern layers 121 and 131, a patterning process of forming the metal patterns 122 and 132 on the upper surfaces of the first insulating pattern layers 121 and 131 is performed (S430).

That is, sputtering, metalorganic chemical vapor deposition (MOCVD), molecular beam epitaxy (MBE), and evaporation are performed on the upper surfaces of the first insulating pattern layers 121 and 131. The metal layers may be formed by PVD or CVD, and the metal patterns 122 and 132 may be formed by etching the regions B and C that separate the unit electrode lines.

Alternatively, a direct patterning process such as screen printing, gravure printing, inkjet printing, or the like may be used as a patterning process for forming the metal patterns 122 and 132.

After the metal patterns 122 and 132 are formed by the patterning process, the second insulating pattern layers 123 and 133 covering the metal patterns 122 and 132 are formed (S440).

The second insulating pattern layers 123 and 133 may be formed of nitrides such as SiN or SiO 2 , CuO, AlO 2 on the metal patterns 122 and 132, similar to the process of forming the first insulating pattern layers 121 and 131 illustrated in FIGS. 2C and 3C. A layer made of an oxide, such as, is formed, and is formed by filling gaps between the metal patterns 122 and 132.

In this case, the second insulating pattern layers 123 and 133, which selectively fill the gap between the metal patterns 122 and 132, may be formed to have the flat surface shown in FIGS. 2C and 3C. Annealing processing may also be performed.

Accordingly, after the annealing process is performed, the photoresist pattern formed initially is removed by performing an etching and cleaning process, so that the first electrode 120 and the second electrode 130 having the flat surface are formed of a transparent substrate ( 110, 160).

The upper transparent substrate 110 and the lower transparent substrate 160 on which the first electrode 120 and the second electrode 130 having the flat surface are formed, respectively, are bonded to each other through the adhesive material 180 to form the touch panel 100. To form (S450).

Here, the adhesive 180 is bonded to the front or corner region between the upper transparent substrate 110 and the lower transparent substrate 160, the material of the adhesive 180 is preferably used for example, an optical transparent adhesive (OCA).

In the method of manufacturing a touch panel including the above-described process, a lithography method is used to distinguish regions B and C that separate the unit electrode lines with respect to the first electrode 120 and the second electrode 130. By connecting to the insulating layer using a patterning process, the linear pattern that can be formed by the separation is not recognized, and the mutual effect of the linear pattern formed by the separation of the metal electrodes and the periodicity by the unit pixel of the image display device The moiré phenomenon generated by this can be prevented.

Therefore, the manufacturing method of the touch panel according to the present invention can provide a touch panel that can prevent linear pattern visibility and moiré phenomena due to the separation of metal patterns, thereby improving visibility and improving display quality.

Although the technical idea of the present invention has been specifically described according to the above preferred embodiments, it is to be noted that the above-described embodiments are intended to be illustrative and not restrictive.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention.

100: touch panel 110: upper transparent substrate
120: first electrode 121,131: first insulating pattern layer
122,132: metal pattern 123,133: second insulating pattern layer
130: second electrode 150: first trace line
160: lower transparent substrate 170: second trace line
180: adhesive

Claims (15)

At least one transparent substrate; And
An electrode including a plurality of unit electrode lines on one or both surfaces of the transparent substrate;
/ RTI >
The electrode has a structure in which a first insulating pattern layer, a metal pattern, and a second insulating pattern layer are sequentially stacked from the transparent substrate.
The method of claim 1,
The boundary region between the unit electrode lines may include the metal patterns spaced apart from each other in the longitudinal direction, and the second insulating pattern layer may fill the metal patterns.
The method of claim 1,
The unit electrode line is formed in a mesh (mesh) form.
The method of claim 1,
The first insulation pattern layer and the second insulation pattern layer are made of an oxide or nitride.
The method of claim 1,
The transparent substrate is formed of a material having support and transparency, polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), polyether sulfone (PES), Cyclic olefin polymer (COC), Triacetylcellulose (TAC) film, Polyvinyl alcohol (PVA) film, Polyimide (PI) film, Polystyrene (PS), Biaxially oriented polystyrene (K resin-containing biaxially oriented) PS; BOPS), a touch panel formed of any one of glass and tempered glass.
The method of claim 1,
The transparent substrate is a touch panel bonded to another transparent substrate using an optical clear adhesive (OCA).
Providing at least one transparent substrate;
Forming a first insulating pattern layer on an electrode formation region set on one or both surfaces of the transparent substrate;
Performing a patterning process of forming a metal pattern on an upper surface of the first insulating pattern layer; And
Forming a second insulating pattern layer covering the metal pattern;
The method comprising the steps of:
The method of claim 7, wherein
In preparing the transparent substrate
The transparent substrate is a manufacturing method of the touch panel is formed of a material having a supporting force and transparency.
The method of claim 7, wherein
In the forming of the first insulating pattern layer
The electrode forming region includes a plurality of unit electrode lines, wherein the unit electrode line is formed in a mesh form.
The method of claim 7, wherein
Forming the first insulating pattern layer
Using a lithography method to form a photoresist pattern exposing the electrode formation region and covering the remaining region; And
Forming a first insulating pattern layer by filling nitride or oxide in an electrode formation region between the photoresist patterns
Method of manufacturing a touch panel further comprising.
The method of claim 7, wherein
The step of performing the patterning process
Forming a metal layer on a top surface of the first insulating pattern layer by PVD or CVD; And
Etching a region separating the unit electrode lines with respect to the metal layer to form a metal pattern spaced in the longitudinal direction
Method of manufacturing a touch panel further comprising.
The method of claim 7, wherein
The step of performing the patterning process
A method of manufacturing a touch panel which performs a direct patterning process of any one of screen printing, gravure printing, and inkjet printing.
The method of claim 7, wherein
In the forming of the second insulating pattern layer
The second insulating pattern layer is a method of manufacturing a touch panel formed of nitride or oxide.
The method of claim 11,
The second insulating pattern layer fills the gap between the unit electrode line.
The method of claim 7, wherein
Forming the second insulating pattern layer
And performing an annealing process to planarize the surface of the second insulating pattern layer.
KR1020110116594A 2011-11-09 2011-11-09 Touch pannel and manufacturing method thereof KR20130051316A (en)

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Cited By (7)

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WO2014204117A1 (en) * 2013-06-18 2014-12-24 주식회사 엘지화학 Method of forming insulation layer and touch screen manufactured using same
KR20150103612A (en) * 2014-03-03 2015-09-11 엘지이노텍 주식회사 Digitizer
CN104919405A (en) * 2013-06-18 2015-09-16 Lg化学株式会社 Method of forming insulation layer and touch screen manufactured using same
US9146647B2 (en) 2014-01-14 2015-09-29 Samsung Electro-Mechanics Co., Ltd. Touch panel
WO2016182194A1 (en) * 2015-05-14 2016-11-17 주식회사 대화알로이테크 Display manufacturing apparatus
CN109284026A (en) * 2017-07-21 2019-01-29 乐金显示有限公司 Touch type shows equipment and for sensing the method touched
CN110231889A (en) * 2019-06-25 2019-09-13 汕头超声显示器技术有限公司 A kind of via design capacitance touch screen improving durability

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014204117A1 (en) * 2013-06-18 2014-12-24 주식회사 엘지화학 Method of forming insulation layer and touch screen manufactured using same
CN104919405A (en) * 2013-06-18 2015-09-16 Lg化学株式会社 Method of forming insulation layer and touch screen manufactured using same
US9655250B2 (en) 2013-06-18 2017-05-16 Lg Chem, Ltd. Method of forming insulating layer and touchscreen manufactured using the same
CN104919405B (en) * 2013-06-18 2018-07-06 Lg化学株式会社 The touch screen for forming the method for insulating layer and being prepared using this method
US9146647B2 (en) 2014-01-14 2015-09-29 Samsung Electro-Mechanics Co., Ltd. Touch panel
KR20150103612A (en) * 2014-03-03 2015-09-11 엘지이노텍 주식회사 Digitizer
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