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KR20140125932A - Printing layer integrated touch screen panel - Google Patents

Printing layer integrated touch screen panel Download PDF

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Publication number
KR20140125932A
KR20140125932A KR1020130043360A KR20130043360A KR20140125932A KR 20140125932 A KR20140125932 A KR 20140125932A KR 1020130043360 A KR1020130043360 A KR 1020130043360A KR 20130043360 A KR20130043360 A KR 20130043360A KR 20140125932 A KR20140125932 A KR 20140125932A
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KR
South Korea
Prior art keywords
panel
layer
touch
transparent
touch screen
Prior art date
Application number
KR1020130043360A
Other languages
Korean (ko)
Inventor
한재욱
정대주
김봉석
Original Assignee
주식회사 에스에스뉴테크
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 주식회사 에스에스뉴테크 filed Critical 주식회사 에스에스뉴테크
Priority to KR1020130043360A priority Critical patent/KR20140125932A/en
Publication of KR20140125932A publication Critical patent/KR20140125932A/en

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/08—Oxides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34—Sputtering
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (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 present invention relates to a touch screen panel arranged integrated to a printing layer to improve the productivity. According to an embodiment, the present invention includes: a transparent film; a transparent electrode arranged on the back surface of transparent film; a wiring part formed at the outer wall of the transparent electrode to recognize touch operation on X and Y axis direction; a touch panel including a printing layer formed on the front surface of the transparent film not to expose the wiring part to the outside visually; a protective layer attached on the touch panel; and a flat display panel.

Description

[0001] PRINTING LAYER INTEGRATED TOUCH SCREEN PANEL [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch screen panel, and more particularly, to a touch screen panel having a print layer integrated with a print layer by integrating the touch panel with a print layer.

The touch screen panel may be a flat panel display (FPD) such as a liquid crystal display (LCD), an organic light emitting display (OLED), and a plasma display panel (PDP) ). ≪ / RTI >

 The touch screen panel can be classified into a resistive type, a capacitive type, an ultrasonic type, and an infrared type depending on the operation method. Among them, the electrostatic capacity type is characterized in that the thickness of the contact detection panel is thin, the durability is high, and the multi touch is possible.

1 is a cross-sectional view of a touch screen panel according to a first prior art.

Referring to FIG. 1, in order to allow the touch panel 120 to operate in an electrostatic capacity manner, a transparent substrate 121 made of glass or a film is formed on both upper and lower surfaces thereof with a transparent conductive material such as ITO or IZO A transparent electrode 122 and a lower transparent electrode 123 are formed. The upper transparent electrode 122 is a transparent electrode including an X-axis sensing electrode for recognizing a touch operation in the X-axis direction when a touch operation is performed on the touch panel 120, And a Y-axis sensing electrode for recognizing a touch operation in the Y-axis direction when a touch operation is performed on the panel 120. [

 An upper wiring portion 122_1 having a constant width is formed at both side edge portions of the upper transparent electrode 122. [ Likewise, the lower wiring portion 123_1 having a constant width is formed at both side edge portions of the lower transparent electrode 123.

The upper wiring portion 122_1 is a wiring for transmitting a touch operation signal in the X-axis direction to a controller (not shown in the drawing) when a touch operation is performed on the touch panel 120, Axis direction and transmits a touch operation signal in the Y-axis direction to the controller when the touch operation is performed on the touch panel 120.

The protective layer 130 is a layer for preventing the touch panel 120 from being damaged by a finger or a stylus pen or the like such as scratches, 131 are formed. When the upper wiring part 122_1 and the lower wiring part 123_1 are formed of a metal material, the printed wiring layer 131 is formed such that the upper wiring part 122_1 and the lower wiring part 123_1 are visually exposed to the outside It is a layer formed to block.

The touch panel 120 is bonded to the flat panel display panel 110 by a first optical adhesive layer 141 and is adhered to the protective layer 130 by a second optical adhesive layer 142. The flat panel display panel 110 includes an LCD panel, a PDP panel, and an OLED panel.

    The upper transparent electrode 122 and the lower transparent electrode 123 may have various shapes for a touch function and an operation.

2 is a cross-sectional view of a touch screen panel according to a second prior art.

Comparing FIG. 2 with FIG. 1, the structure of the touch panel 220 is different as follows. That is, the upper transparent electrode 222 and the lower transparent electrode 224 are not formed on one transparent substrate as shown in FIG. 1, but the upper transparent electrode 222 is formed on the upper transparent substrate 221, The transparent electrode 224 is formed on the lower transparent substrate 223.

An upper wiring portion 222_1 having a constant width is formed at both edge portions of the upper transparent electrode 222 and a lower wiring portion 224_1 having a constant width is formed at both edge portions of the lower transparent electrode 224 do. The upper transparent substrate 221 and the lower transparent electrode 224 are bonded together by the first optical adhesive layer 241.

3 is a cross-sectional view of a touch screen panel according to a third prior art.

Comparing FIG. 3 with FIG. 1 and FIG. 2, the structure of the touch panel 320 is different as follows. That is, the lower transparent electrode 324, the insulating layer 322, and the upper transparent electrode 323 are sequentially stacked on the upper surface of the transparent substrate 321. In other words, an insulating layer 322 is formed on the upper surface of the transparent substrate 321. An upper transparent electrode 323 is formed on the upper surface of the insulating layer 322, a lower transparent electrode 324 is formed on the lower surface, Is formed.

An upper wiring portion 323_1 having a constant width is formed at both edge portions of the upper transparent electrode 323 and a lower wiring portion 324_1 having a constant width is formed at both edge portions of the lower transparent electrode 324 do.

4 is a cross-sectional view of a touch screen panel according to a fourth prior art.

Referring to FIG. 4, a print layer 431 having a predetermined width is formed at both edge portions of the lower surface of the protective layer 430. An upper transparent electrode 422 is formed between the print layer 431 formed on the lower surface of the protective layer 430 and a correspondence of the print layer 431 which is both edge portions of the upper transparent electrode 422 And an upper wiring portion 422_1 is formed on the surface. Accordingly, in this case, step differences due to the print layer 431 are generated at both edge portions of the upper transparent electrode 422.

A lower transparent electrode 423 is formed on the upper surface of the transparent substrate 421 and a lower wiring portion 423_1 having a constant width is formed on both edge portions of the lower transparent electrode 423. [ The upper transparent electrode 422 and the lower transparent electrode 423 are bonded together by the first optical adhesive layer 424 and the transparent substrate 421 and the flat panel display panel 410 are bonded to the second optical adhesive layer 440 Respectively.

  As described above, the touch screen panel according to the related art has a structure in which a print layer is provided on a protective layer and is adhered to a transparent substrate. Therefore, there is a problem that the printing layer needs to be applied considering the material of the protective layer, and a step due to the thickness of the printing layer occurs when the printing layer is formed under the protective layer, There is a risk of burnout. Further, when the transparent electrode is formed immediately below the print layer, contamination or functional problems due to the material of the print layer may occur.

In addition, since the glass substrate is used as a transparent substrate, it is thick and heavy, and the entire process is complicated and difficult due to the glass strengthening process and cutting process, which is a major cause of lowering the mass production yield of the touch screen panel

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method of manufacturing a touch panel, Which can contribute to weight reduction and improve mass production yield.

According to an aspect of the present invention, there is provided a touch screen panel integrated with a printing layer, including: a flat panel display panel; A transparent electrode disposed on a lower surface of the transparent film, a wiring portion formed on an outer periphery of the transparent electrode to recognize a touch operation in the X-axis and Y-axis directions, A touch panel including a printed layer formed on an upper surface of the transparent film; A protective layer for protecting the transparent film from external impact; A first optical adhesive layer for attaching the other side of the touch panel to the flat panel display panel; And a second optical adhesive layer for attaching the protective layer to one side of the touch panel.

According to the present invention, a print layer integrated type touch screen panel can be applied regardless of the material of the protective layer by integrally forming the print layer on the touch panel.

Further, by forming the print layer on one surface of the transparent electrode of the touch panel, the manufacturing process is simplified.

In addition, by forming the print layer integrally on the touch panel, it is possible to eliminate the possibility of disconnection of the transparent electrode and the wiring portion due to the step difference due to the thickness of the print layer when forming the print layer below the protective layer, There is an effect of solving the problem of contamination or functional problems that may occur when forming the transparent electrode.

 Further, by using a transparent film as the transparent substrate, the thickness can be remarkably reduced as compared with the case where a transparent glass substrate is used, and the effect of reducing the size and weight can be achieved.

In addition, by integrally forming the print layer on the touch panel, it is possible to perform the batch manufacturing process, thereby improving the mass production yield.

1 is a cross-sectional view of a touch screen panel according to a first prior art.
2 is a cross-sectional view of a touch screen panel according to a second prior art.
3 is a cross-sectional view of a touch screen panel according to a third prior art.
4 is a cross-sectional view of a touch screen panel according to a fourth prior art.
5 is an exploded perspective view of a printed-layer integrated touch screen panel according to the present invention.
6 is a sectional view taken along the line AA 'of FIG.

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

FIG. 5 is an exploded perspective view of a printed-layer integrated touch screen panel according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along line A-A 'of FIG.

5 and 6, the print layer integrated touch screen panel 500 according to an embodiment of the present invention includes a flat panel display panel 510, a touch panel 520, a protective layer 530, (541) and (542). The touch panel 520 includes a transparent film 521, a transparent electrode 522 having a wiring portion 522_1, and a print layer 523. [

 After the flat panel display panel 510, the touch panel 520 and the protective layer 530 are formed through the respective processes, the flat panel display panel 510 and the touch panel 520 are separated by the first optical adhesive layer 541, And the touch panel 520 and the protective layer 530 are bonded together by the second optical adhesive layer 542. [

The flat panel display panel 510 includes an LCD (Liquid Crystal Display) panel, an OLED (Organic Light Emitting Device) panel, and a PDP (Plasma Display Panel) panel.

The protective layer 530 may include transparent plastic or transparent glass as a layer for protecting the transparent film 521 from a finger, a stylus pen, and an external impact. The protective layer 530 may be adhered to the upper surface of the transparent film 521 and the print layer 523 using an adhesive layer such as an optical adhesive film (OCA). A decorative effect can be imparted to the transparent film 521 by using the protective layer 530 and the printing layer 523. [

  The touch panel 520 has a new structure according to the present invention, and the new structure will be described in detail as follows.

A transparent electrode 522 is formed on a lower surface of the transparent film 521 and a wiring portion 522_1 having a predetermined width is formed on an outer portion of the transparent electrode 522. [ A print layer 523 is formed on the entire front surface of the transparent film 521 at an edge front corresponding to the wiring portion 522_1.

The transparent electrode 522 is integrally formed on the lower surface of the transparent film 521. For example, a transparent conductive material such as ITO (Indium Thin Oxide), IZO (Indium Zinc Oxide), or ZnO (Zinc Oxide) is deposited on the transparent film 521 by sputtering or ion plating without using a separate adhesive layer. The transparent electrode 522 may be directly disposed in a desired shape by patterning the transparent conductive material by an etching process or the like. Here, the integral type means that the transparent electrode 522 is not attached to the transparent film 521 by using an adhesive layer such as an optical adhesive film (OCA), but the transparent electrode 522 is attached to the transparent film 521, Quot; is directly formed.

The wiring portion 522_1 is a portion where wiring for transmitting the touch operation signals in the X-axis direction and the Y-axis direction to the controller is recognized when the touch operation is performed on the touch panel 520. [

The printed layer 523 is formed to prevent the wiring portion 522_1 from being visually exposed to the outside when the wiring portion 522_1 is formed of a metal material. The printing layer 523 may be formed by a conventional process such as a printing process, sputtering, vapor deposition, or coating.

A planarization layer may be disposed on the upper surface of the transparent film 521 in the inner direction of the print layer 523 in order to eliminate the step difference caused by the print layer 523. [ The planarization layer may include an overcoat layer, and may be formed of a material such as acrylic, epoxy, or polyimide.

Therefore, when the touch panel 520 is viewed from the outside, the exposed surface is the protective layer 530, and the print layer 523 and the transparent film 521 (not shown) are formed on the lower surface (back surface) . The printed layer 523 is disposed on the corresponding surface of the wiring part 522_1 with respect to the transparent film 521. [

As another example, when the print layer is disposed on the entire edge surface of the lower surface of the transparent film 521, a print layer 521 is formed inside the surface of the transparent film 521 by using a process such as in- In this case, the planarization layer may be omitted.

   Accordingly, in the case of using the touch panel 520 according to the present invention, the touch panel 520 is simply attached to the upper surface of the touch panel 520 regardless of whether the protective layer 530 is a transparent film, a transparent plastic, The production process is completed and the production process is simplified accordingly, thereby improving the mass production yield of the touch screen panel.

Further, since the printing layer 523 is disposed on the transparent film 521 instead of placing the printing layer 523 on a glass substrate as in the conventional case, the same reinforcing step as in the case of using glass can be omitted, And the manufacturing process can be performed much easier than when glass is used, thereby improving the mass production yield of the touch panel 520. [

Further, the transparent film 521, the print layer 523, and the like can be processed into a multi-array sheet, and an etching process can be performed all at once, which is advantageous for a batch process.

In addition, as compared with the case of using glass as the transparent substrate, more bending is possible, and the touch screen panel can be made lighter and thinner without breakage, and the cost of the product can be lowered.

Although the preferred embodiments of the present invention have been described in detail above, it should be understood that the scope of the present invention is not limited thereto. These embodiments are also within the scope of the present invention.

510: flat panel display panel 520: touch panel
521: Transparent film 522: Transparent electrode
522_1: wiring portion 523: printed layer
530: protective layer 541: first optical adhesive layer
542: second optical adhesive layer

Claims (8)

A flat panel display panel;
A transparent electrode disposed on a lower surface of the transparent film, a wiring portion formed on an outer periphery of the transparent electrode to recognize a touch operation in the X-axis and Y-axis directions, A touch panel including a printed layer formed on an upper surface of the transparent film;
A protective layer for protecting the transparent film from external impact;
A first optical adhesive layer for attaching the other side of the touch panel to the flat panel display panel; And
And a second optical adhesive layer for bonding the protective layer and one side of the touch panel to each other.
The touch screen panel as claimed in claim 1, wherein the print layer is formed by one of a printing process, a sputtering process, a deposition process, and a coating process.
2. The touch panel according to claim 1, wherein a flattening layer is additionally disposed in an inner side of the print layer in the upper surface of the transparent film to eliminate a step difference caused by the print layer. panel.
The printed-screen integrated touch screen panel of claim 3, wherein the planarization layer comprises an overcoat layer and is formed of at least one of UVV resin, acrylic, epoxy, and polyimide.
The touch screen panel according to claim 1, wherein the print layer is embedded in the transparent film by an in-mold injection process.
The flat panel display of claim 1, wherein the flat panel display panel includes one of an LCD (Liquid Crystal Display) panel, an OLED (Organic Light Emitting Device) panel, and a PDP (Plasma Display Panel) Integrated touch screen panel.
The touch screen panel as claimed in claim 1, wherein the transparent electrode is formed on the transparent film.
The method of claim 1 or claim 7, wherein the transparent electrode is formed by a sputtering or ion plating method, wherein a transparent conductive material of ITO (Indium Thin Oxide), IZO (Indium Zinc Oxide), or ZnO (Zinc Oxide) And the transparent conductive material is patterned and formed by an etching process.
KR1020130043360A 2013-04-19 2013-04-19 Printing layer integrated touch screen panel KR20140125932A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200047809A (en) 2018-10-19 2020-05-08 한국성전(주) touch panel for dashboard of vehicle using PEDOT
KR20200055170A (en) 2018-11-07 2020-05-21 한국성전(주) touch panel for dashboard of vehicle using PEDOT and method of making the same
KR20200079439A (en) 2018-12-24 2020-07-03 한국성전(주) touch panel for vehicle using conductive polymer
KR20200079357A (en) 2018-12-24 2020-07-03 한국성전(주) touch panel placed in dashboard of vehicle using PEDOT and method of making the same
KR20200106237A (en) 2019-02-28 2020-09-14 한국성전(주) touch panel for vehicle using conductive polymer
KR20210003347A (en) 2019-07-01 2021-01-12 한국성전(주) touch pad for car using PEDOT and method of making the same
KR20210087599A (en) 2020-01-02 2021-07-13 한국성전(주) structure made by setting up touch pad to curved surface and method for making the same
US11508789B2 (en) 2020-05-20 2022-11-22 Samsung Display Co., Ltd. Display device and method of manufacturing the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200047809A (en) 2018-10-19 2020-05-08 한국성전(주) touch panel for dashboard of vehicle using PEDOT
KR20200055170A (en) 2018-11-07 2020-05-21 한국성전(주) touch panel for dashboard of vehicle using PEDOT and method of making the same
KR20200079439A (en) 2018-12-24 2020-07-03 한국성전(주) touch panel for vehicle using conductive polymer
KR20200079357A (en) 2018-12-24 2020-07-03 한국성전(주) touch panel placed in dashboard of vehicle using PEDOT and method of making the same
KR20200106237A (en) 2019-02-28 2020-09-14 한국성전(주) touch panel for vehicle using conductive polymer
KR20210003347A (en) 2019-07-01 2021-01-12 한국성전(주) touch pad for car using PEDOT and method of making the same
KR20210087599A (en) 2020-01-02 2021-07-13 한국성전(주) structure made by setting up touch pad to curved surface and method for making the same
US11508789B2 (en) 2020-05-20 2022-11-22 Samsung Display Co., Ltd. Display device and method of manufacturing the same

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