KR20130049044A - Touch panel - Google Patents

Touch panel Download PDF

Info

Publication number
KR20130049044A
KR20130049044A KR1020110114068A KR20110114068A KR20130049044A KR 20130049044 A KR20130049044 A KR 20130049044A KR 1020110114068 A KR1020110114068 A KR 1020110114068A KR 20110114068 A KR20110114068 A KR 20110114068A KR 20130049044 A KR20130049044 A KR 20130049044A
Authority
KR
South Korea
Prior art keywords
touch panel
printing unit
electrode pattern
transparent substrate
electrode
Prior art date
Application number
KR1020110114068A
Other languages
Korean (ko)
Inventor
이규상
김슬기
홍상수
이충희
Original Assignee
삼성전기주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성전기주식회사 filed Critical 삼성전기주식회사
Priority to KR1020110114068A priority Critical patent/KR20130049044A/en
Publication of KR20130049044A publication Critical patent/KR20130049044A/en

Links

Images

Classifications

    • 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
    • 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

Abstract

PURPOSE: A touch panel is provided to remove a step caused by the thickness of a printing unit, thereby preventing disconnection between electrode wires. CONSTITUTION: A printing unit(120) is embedded in a recess unit(115) formed in one side of a transparent substrate(110). A first electrode wire(130) is formed on the printing unit. A first electrode pattern(140) is formed in one side of the transparent substrate. The thickness of the recess unit is equal to the thickness of the printing unit. The transparent substrate is a window equipped in the outermost part. The printing unit is formed in a sputtering method. An insulating layer is formed in one side of the transparent substrate. A second electrode wire is formed in an area of the insulating layer corresponding to the printing unit. A second electrode pattern is formed on the insulating layer.

Description

Touch Panel {Touch Panel}

The present invention relates to a touch panel.

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 is shifting beyond the level that satisfies the general functions, such as high reliability, durability, innovation, design and processing related technology, etc. In order to achieve this purpose, As a possible input device, a touch panel has been developed.

Such a touch panel can be used as a flat panel display device such as an electronic notebook, a liquid crystal display device (LCD), a plasma display panel (PDP), and an electro luminescence (EL) And is a tool used by a user to select desired information while viewing the image display apparatus.

The touch panel types include resistive type, capacitive type, electro-magnetic type, SAW type, surface acoustic wave type, and infrared type. Type). 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.

On the other hand, the touch panel according to the prior art, as disclosed in Korean Patent Laid-Open No. 10-2011-0095526, a printing unit (window printing layer) is formed to cover the electrode wiring and the like. However, the printed portion has a relatively thick micrometer unit thickness, whereas the electrode wiring or electrode pattern has a relatively thin nanometer unit thickness. Therefore, it is difficult to connect the electrode wiring and the electrode pattern due to the step generated due to the thickness of the printing part. In addition, even if the electrode wiring and the electrode pattern is connected, there is a problem that the possibility of disconnection is very high.

The present invention has been made to solve the above problems, an object of the present invention is to embed the printed portion on one surface of the transparent substrate to eliminate the step due to the thickness of the printed portion, it is possible to connect the electrode wiring and the electrode pattern smoothly. It is to provide a touch panel.

According to an exemplary embodiment of the present invention, a touch panel includes a transparent substrate, a printed portion embedded in a recess formed on one surface of the transparent substrate, first electrode wiring formed on the printed portion, and a first electrode pattern formed on one surface of the transparent substrate. It is configured to include.

Here, the thickness of the recess and the thickness of the printing portion is characterized in that the same.

In addition, the transparent substrate is characterized in that the window (Window) provided on the outermost side.

In addition, the printing unit is characterized in that formed with a sputter (Sputter).

In addition, the printing unit is characterized in that the black, white, gold, red, green, yellow, gray, purple, brown, blue or a combination thereof.

The method may further include an insulating layer formed on one surface of the transparent substrate, a second electrode wiring formed in a region corresponding to the printing unit among the insulating layers, and a second electrode pattern formed on the insulating layer.

In addition, the first electrode wiring and the first electrode pattern is characterized in that formed integrally.

In addition, the second electrode wiring and the second electrode pattern is characterized in that formed integrally.

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

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

According to the present invention, by embedding the printed portion on one surface of the transparent substrate, it is possible to smoothly connect the electrode wiring and the electrode pattern by eliminating the step caused by the thickness of the printed portion, and to generate a disconnection between the electrode wiring and the electrode pattern. There is an advantage that can be prevented.

1A is a cross-sectional view of a touch panel according to a first preferred embodiment of the present invention;
1B is a plan view of a touch panel according to a first preferred embodiment of the present invention; And
2 is a cross-sectional view of a touch panel according to a second preferred embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific 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. In addition, terms such as “first” and “second” are used to distinguish one component from another component, and the component is not limited by the terms. In the following description of the present invention, a detailed description of related arts which may unnecessarily obscure the gist of the present invention will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1A is a cross-sectional view of a touch panel according to a first preferred embodiment of the present invention, and FIG. 1B is a plan view of a touch panel according to a first preferred embodiment of the present invention.

As illustrated in FIGS. 1A to 1B, the touch panel 100 according to the present exemplary embodiment may include a transparent substrate 110 and a printed portion 120 embedded in a recess 115 formed on one surface of the transparent substrate 110. The first electrode pattern 130 formed on the printing unit 120 and the first electrode pattern 140 formed on one surface of the transparent substrate 110 are included.

The transparent substrate 110 serves to provide a region in which the first electrode pattern 140, the first electrode wiring 130, and the like are to be formed. Here, the transparent substrate 110 should have a supporting force capable of supporting the first electrode pattern 140, the first electrode wiring 130, and the like so that the user can recognize the image provided by the image display apparatus. . The transparent substrate 110 may be formed of a material selected from the group consisting of polyethylene terephthalate (PET), polycarbonate (PC), polymethylmethacrylate (PMMA), polyethylene naphthalate (PEN), polyethersulfone (PES) , Cyclic olefin polymer (COC), TAC (triacetylcellulose) film, polyvinyl alcohol (PVA) film, polyimide (PI) film, polystyrene (PS), biaxially oriented polystyrene oriented PS (BOPS), glass or tempered glass, but is not limited thereto.

The transparent substrate 110 may be a window provided on the outermost side of the touch panel 100. When the transparent substrate 110 is a window, an exposed surface of the transparent substrate 110 (opposite side of one surface of the transparent substrate 110 in which the printing unit 120 is embedded) receives a user's touch.

The printing unit 120 serves to cover the first electrode wiring 130 or to display a logo, and is embedded in the recess 115 formed on one surface of the transparent substrate 110. . Here, the printing unit 120 generally has a relatively thick thickness in units of micrometers. However, since the printing unit 120 is embedded in the recess 115, it is possible to prevent a step between the printing unit 120 and the transparent substrate 110. Therefore, the first electrode wiring 130 formed on the printing unit 120 and the first electrode pattern 140 formed on one surface of the transparent substrate 110 can be smoothly connected, and the first electrode wiring ( There is an advantage in that disconnection may be prevented between the 130 and the first electrode pattern 140. In addition, in order to completely prevent the step difference between the printing unit 120 and the transparent substrate 110, the thickness T of the recess 115 and the thickness T of the printing unit 120 are the same. can do. Here, "same" does not mean that the thickness T of the recess 115 and the thickness T of the printing unit 120 are mathematically exactly the same, but are generated in the manufacturing process of the touch panel 100. It includes a slight change in thickness due to processing error.

Meanwhile, the printing unit 120 may be formed using, for example, a sputter. When the printing unit 120 is formed by using a sputter, the thickness of the printing unit 120 may be formed to a thickness of about nanometers, and the thickness of the recess 115 may also correspond to the thickness of the printing unit 120. It can be formed thin.

In addition, the printing unit 120 may be formed of black, white, gold, red, green, yellow, gray, purple, brown, blue, or a combination thereof. Looking at the material capable of forming the printing unit 120 in each of the above-described colors as follows.

First, carbonaceous materials (Graphene Oxide, DLC: Diamond Line Carbon), chromium oxides (CrO, CrO 2 ), copper oxides (CuO), manganese oxides (MnO 2 ), cobalt oxides (CoO), sulfides ( CoS 2 , Co 3 S 4 ), nickel-based oxide (Ni 2 O 3 ), HgTe, YBa 2 Cu 3 O 7 , MoS 2 , RuO 2 , PdO, InP, SnO, TaN or TaS 2 The part 120 may be formed in black.

In addition, titanium oxide (TiO 2 ), aluminum oxide (Al 2 O 3 ), magnesium oxide (MgO), sodium oxide (Na 2 O), lithium oxide (Li 2 O), beryllium oxide ( BeO), magnesium sulfide (MgS), MgF 2 , MgCo 3 , ZnO, ZnS, KNO 3 , KCl, KOH, Ga 2 O 3 , RbCl, RbF, BaTiO 3 , BaSO 4 , BaCl 2 , BaO, Ba (NO 3 ) 2 , BaCO 3 , BaOH, BaB 2 O 4 , SrTiO 3 , SrCl 2 , SrO, Y 2 O 3 , YCl 3 , YF 3 , ZrO 2 , ZrCl 4 , ZrF 4 , Nb 2 O 5 , NbOCl 3 , with such as Mo (CO) 6, CdCl 2 , InCl 3, SnO 2, Sb 2 O 3, CsI, CsCl, CsF, Ta 2 O 5, TaCl 5 or TaF 5, forming the printing section 120 to a white can do.

In addition, when titanium nitride (TiN) is used, the printing unit 120 may be formed in gold, and copper oxide (Cu 2 O), iron oxide (Fe 2 O 3 ), ZnTe, Tris (bipyridine) Using ruthenium chloride, PdCl 2 or CdSe, the printing unit 120 can be formed in red.

In addition, by using chromium oxide (Cr 2 O 3 ), MnO, NiO, MoCl 5 or BiI 3 , the printing unit 120 can be formed in green color, sodium oxide (Na 2 O 2 ), K 2 O, CaO, V 2 O 5 , ZnSe, GaN, GaP, Rb 2 O, NbCl 5 , CdS, CdI 2 , In 2 O 3 , Sb 2 O 5 , Cs 2 O, WO 3 or Bi 2 O 3, etc. By using, the printing unit 120 may be formed in yellow color.

Then, using MgB 2 , Si 3 N 4 , RbOH, BaO 2 , ZrC, NbO, MoSi 2 , WC, or Bi 2 Te 3 , the printing unit 120 may be formed in gray, and Ru (acac) Using 3 or the like, the printing unit 120 may be formed in purple.

In addition, using Pd (O 2 CCH 3 ) 2 , CdO, InSb, or Tantalum carbide, the printing part 120 can be formed in brown, and when using WCl 6 , the printing part 120 is made blue. Can be formed.

The first electrode wiring 130 serves to receive an electrical signal from the first electrode pattern 140 and extends from the edge of the first electrode pattern 140 to be formed in the printing unit 120. Here, the first electrode wiring 130 is copper (Cu), aluminum (Al), gold (Au), silver (Ag), titanium (Ti), palladium (Pd), chromium (Cr) or these having excellent electrical conductivity It can be formed using a combination of, but is not limited to Indium Tin Oxide (ITO), PEDOT / PSS, Carbon Nanotube (CNT), Graphene (Graphene), Zinc Oxide (ZnO) or Al-doped Zinc Oxide) or the like. On the other hand, the first electrode wiring 130 is formed in the printing unit 120 so that the user does not recognize, since the printing unit 120 is embedded in the recess 115 so that no step occurs, the first electrode wiring 130 ) And the first electrode pattern 140 may be formed on the same plane to be connected smoothly. In addition, the first electrode wiring 130 may be integrally formed with the first electrode pattern 140 as necessary. As such, by forming the first electrode wiring 130 and the first electrode pattern 140 integrally, it is possible to prevent a poor bonding between the first electrode wiring 130 and the first electrode pattern 140 in advance. In addition, the manufacturing process can be simplified, and the lead time can be shortened.

The first electrode pattern 140 serves to generate a signal when the user touches and to recognize the touch coordinates in the controller. The first electrode pattern 140 may be formed of copper (Cu), aluminum (Al), gold (Au), silver (Ag), titanium (Ti), palladium (Pd), chromium (Cr), or a combination thereof. To form a mesh pattern. Specifically, the first electrode pattern 140 may be formed using copper (Cu), aluminum (Al), gold (Au), and silver (Ag) having high electrical conductivity. However, the first electrode pattern 140 may be formed of any metal having electrical conductivity. Of course it can be used. In addition, when the first electrode pattern 140 is formed of copper (Cu), the surface of the first electrode pattern 140 is preferably blackened. Here, the blackening treatment is to oxidize the surface of the first electrode pattern 140 to precipitate Cu 2 O or CuO. Cu 2 O is brown, so it is called brown oxide, and CuO is black. It is called black oxide. As such, by blackening the surface of the first electrode pattern 140, light may be prevented from being reflected, thereby improving the visibility of the touch panel 100.

In addition to the above-described metal, the first electrode pattern 140 may be formed by exposing / developing a silver salt emulsion layer to form silver, indium tin oxide (ITO), PEDOT / PSS, carbon nanotube (CNT), and graphene. , ZnO (Zinc Oxide) or AZO (Al-doped Zinc Oxide) can be formed using.

Meanwhile, although the first electrode pattern 140 is formed in a rod-shaped pattern (see FIG. 1B) in the drawing, the present invention is not limited thereto, and the first electrode pattern 140 may have a rhombus pattern, a square pattern, a triangle pattern, and a circular pattern. Etc. can be formed in any pattern known in the art.

Since the touch panel 100 according to the present exemplary embodiment has a single layer structure composed of the first electrode patterns 140, the touch panel 100 may be used as a self-capacitive type touch panel or a mutual capacitive type touch panel. have.

2 is a cross-sectional view of a touch panel according to a second preferred embodiment of the present invention.

As shown in FIG. 2, the touch panel 200 according to the present exemplary embodiment may include the insulating layer 150 and the second electrode wiring 160 as compared to the touch panel 100 according to the first exemplary embodiment. There is a difference in which the second electrode pattern 170 is added. Therefore, in the present exemplary embodiment, portions overlapping with those of the first exemplary embodiment will be omitted, and the description will be made based on the insulating layer 150, the second electrode wiring 160, the second electrode pattern 170, and the like.

In the touch panel 200 according to the present embodiment, an insulating layer 150 is formed on one surface of the transparent substrate 110. That is, the insulating layer 150 is stacked on the printing unit 120, the first electrode wiring 130, and the first electrode pattern 140 to form the first electrode wiring 130 and the first electrode pattern 140. It serves to protect. Here, the insulating layer 150 may be formed by printing, chemical vapor deposition (CVD), sputtering, or the like. In addition, the material of the insulating layer 150 may be an epoxy or acrylic resin, a SiOx thin film, or a SiNx thin film.

In addition, the second electrode wiring 160 serves to receive an electrical signal from the second electrode pattern 170. The second electrode wiring 160 extends from the edge of the second electrode pattern 170 and is printed on the printed portion of the insulating layer 150. It is formed in the region 155 corresponding to 120. Here, the second electrode wiring 160 is the same as the first electrode wiring 130, copper (Cu), aluminum (Al), gold (Au), silver (Ag), titanium (Ti), palladium (Pd), Using chromium (Cr) or a combination thereof, ITO (Indium Tin Oxide), PEDOT / PSS, Carbon Nanotube (CNT), Graphene, Graphene (ZnO) or Al-doped Zinc Oxide (AZO) Can be formed. On the other hand, the second electrode wiring 160 may be formed integrally with the second electrode pattern 170 as necessary. In this way, by forming the second electrode wiring 160 and the second electrode pattern 170 integrally, it is possible to prevent the bonding failure between the second electrode wiring 160 and the second electrode pattern 170 in advance. In addition, the manufacturing process can be simplified, and the lead time can be shortened.

In addition, the second electrode pattern 170 serves to generate a signal when the user touches the first electrode pattern 140 so that the controller recognizes the touch coordinates. Here, like the first electrode pattern 140, the second electrode pattern 170 may be copper (Cu), aluminum (Al), gold (Au), silver (Ag), titanium (Ti), palladium (Pd), or chromium. Silver, ITO (Indium Tin Oxide), PEDOT / PSS, Carbon Nanotube (CNT), Graphene, ZnO (Zinc Oxide) formed by exposing / developing (Cr) or a combination thereof or a silver salt emulsion layer ) Or AZO (Al-doped Zinc Oxide). In addition, when the second electrode pattern 170 is formed of copper (Cu), the surface of the second electrode pattern 170 may be blackened.

Since the touch panel 200 according to the present exemplary embodiment has a two-layer structure including the first electrode pattern 140 and the second electrode pattern 170, the touch panel 200 may be used as a mutual capacitive type touch panel. In addition, in the touch panel 200 according to the present embodiment, like the touch panel 100 according to the first embodiment, the printing unit 120 is embedded in the recess 115 formed on one surface of the transparent substrate 110. Eliminating the step due to the thickness of the printing unit 120, there is an advantage that can be smoothly connected to the first electrode wiring 130 and the first electrode pattern 140.

Although the present invention has been described in detail through specific embodiments, it is intended to specifically describe the present invention, and the touch panel according to the present invention is not limited thereto, and the general knowledge of the art within the technical spirit of the present invention is provided. It is obvious that modifications and improvements are possible by those who have them. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100 and 200: touch panel 110: transparent substrate
115: recessed portion 120: printing portion
130: first electrode wiring 140: first electrode pattern
150: insulating layer 155: area corresponding to the printed portion of the insulating layer
160: second electrode wiring 170: second electrode pattern
T: thickness of the printing portion and the recessed portion

Claims (8)

Transparent substrate;
A printing part embedded in a recess formed on one surface of the transparent substrate;
A first electrode wiring formed on the printing unit; And
A first electrode pattern formed on one surface of the transparent substrate;
And a touch panel.
The method according to claim 1,
The thickness of the concave portion and the thickness of the printed portion is the touch panel, characterized in that the same.
The method according to claim 1,
The transparent substrate is a touch panel, characterized in that the window (Window) provided on the outermost side.
The method according to claim 1,
The printing unit is a touch panel, characterized in that formed with a sputter (Sputter).
The method according to claim 1,
The printing unit is a touch panel, characterized in that the black, white, gold, red, green, yellow, gray, purple, brown, blue or a combination thereof.
The method according to claim 1,
An insulating layer formed on one surface of the transparent substrate;
A second electrode wiring formed in a region of the insulating layer corresponding to the printing unit; And
A second electrode pattern formed on the insulating layer;
Touch panel further comprising.
The method according to claim 1,
And the first electrode wiring and the first electrode pattern are integrally formed.
The method of claim 6,
And the second electrode wiring and the second electrode pattern are integrally formed.
KR1020110114068A 2011-11-03 2011-11-03 Touch panel KR20130049044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110114068A KR20130049044A (en) 2011-11-03 2011-11-03 Touch panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110114068A KR20130049044A (en) 2011-11-03 2011-11-03 Touch panel

Publications (1)

Publication Number Publication Date
KR20130049044A true KR20130049044A (en) 2013-05-13

Family

ID=48659920

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110114068A KR20130049044A (en) 2011-11-03 2011-11-03 Touch panel

Country Status (1)

Country Link
KR (1) KR20130049044A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9461645B2 (en) 2013-12-13 2016-10-04 Samsung Electronics Co., Ltd. Method for fabricating touch panel, touch panel, and electronic device having the touch panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9461645B2 (en) 2013-12-13 2016-10-04 Samsung Electronics Co., Ltd. Method for fabricating touch panel, touch panel, and electronic device having the touch panel

Similar Documents

Publication Publication Date Title
KR20130066395A (en) Touch panel
JP5968282B2 (en) Manufacturing method of touch panel
CN108110028B (en) OLED integrated touch sensor and OLED image display device comprising same
CN105446506B (en) Touch control display apparatus
KR101310585B1 (en) Touch Panel
US20140124341A1 (en) Touch panel and method for manufacturing the same
US20120319963A1 (en) Touch panel
US20150101853A1 (en) Touch sensor
JP2014146308A (en) Touch panel
US20150070598A1 (en) Cover window, manufacturing method thereof, and touchscreen including the same
JP2015026363A (en) Touch sensor
JP2014021962A (en) Touch panel and method for manufacturing the same
KR20140030727A (en) Touch panel and method for manufacturing the same
US20140078111A1 (en) Touch panel
KR20150087613A (en) Touch sensor
JP6361106B2 (en) Substrate with transparent conductive film, touch panel substrate, touch panel integrated front protective plate for display device, and display device
CN105468184B (en) Transparent electrode laminate and touch screen panel including the same
CN107003773B (en) Touch screen panel and image display apparatus having the same
KR20130049044A (en) Touch panel
KR20130048611A (en) Touch panel
US20150104600A1 (en) Touch sensor
KR20150043196A (en) Touch Sensor
KR20140034545A (en) Touch panel
TWI606382B (en) Touch screen panel
TWI623873B (en) Transparent electrode laminate and touch screen panel including the same

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal