KR20080113506A - Touch panel device and method of preparing the same - Google Patents

Touch panel device and method of preparing the same Download PDF

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Publication number
KR20080113506A
KR20080113506A KR1020070062059A KR20070062059A KR20080113506A KR 20080113506 A KR20080113506 A KR 20080113506A KR 1020070062059 A KR1020070062059 A KR 1020070062059A KR 20070062059 A KR20070062059 A KR 20070062059A KR 20080113506 A KR20080113506 A KR 20080113506A
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KR
South Korea
Prior art keywords
panel
electrode
edge
conductive layer
antenna line
Prior art date
Application number
KR1020070062059A
Other languages
Korean (ko)
Inventor
박준영
Original Assignee
한플렉스 주식회사
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 한플렉스 주식회사 filed Critical 한플렉스 주식회사
Priority to KR1020070062059A priority Critical patent/KR20080113506A/en
Publication of KR20080113506A publication Critical patent/KR20080113506A/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
    • 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
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • 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

A touch panel device and a method of manufacturing the same are provided to connect an RFID antenna line to the touch panel device integrally and connect the touch panel device to which the RFID antenna is connected to an RFID chip or device, thereby making a more compact RFID function. A touch panel device comprises an upper panel(10), a lower panel(20), and an antenna line(40) for an electrode(30) and RFID. The upper panel is separated toward the inside from an edge of a panel and comprises a transparent inner area as a display unit(5). The lower panel is separated toward the inside from the edge of the panel and comprises a transparent inner area as the display unit. The lower panel is separated toward a lower side of the upper panel and connected. The electrode is between the edge of the panel and the display. The edge of the panel is between the upper panel and the lower panel. The electrode receives an electrical signal according to the contact of the upper panel.

Description

TOUCH PANEL DEVICE AND METHOD OF PREPARING THE SAME}

1 is a system schematically showing an embodiment of a touch panel device of the present invention.

2 is a system schematically showing another embodiment of the touch panel device of the present invention.

2 to 4 are views sequentially showing the combination of another embodiment of the touch panel device of the present invention.

5 is an enlarged partial cross-sectional view of still another embodiment of the touch panel device according to the present invention.

Explanation of symbols on the main parts of the drawings

5: display unit 10: upper panel

12: upper transparent sheet 14: upper transparent conductive layer

20: lower panel 22: transparent sheet

24: lower transparent conductive layer 25: conductive layer

30 electrode 32 Y-axis electrode

34: X-axis electrode 36: leader line

40: antenna line for RFID 50: insulator layer (double-sided tape)

55: connecting hole

The present invention relates to a touch panel device and a method of manufacturing the same, by combining an RFID antenna line with the touch panel device integrally and connecting it with an RFID chip or a device, performing a RFID function more compactly and at the same time performing a touch screen function. If the device can be manufactured and applied to mobile phones, PMPs, PDAs, etc., it is possible to make these devices thin, and the manufacture of the whole device can be manufactured without any additional process. The present invention relates to a touch panel device capable of reducing costs and a method of manufacturing the same.

In general, the touch panel is being applied to an input means for inputting a corresponding command by pressing a position of a key displayed on an image display device with a device such as a finger or a pen. For example, the touch panel is widely applied to various equipments such as CNC machines, machine tools, semiconductor devices, as well as portable information devices such as PDAs, PMPs, mobile phones, notebook computers, and tablet PCs. Depending on the resistance film type, ultrasonic reflection type, capacitive type, infrared light type and the like.

In addition, with the development of RF technology, the application of RFID technology for the recognition of various items or users is becoming common. For example, the technology of applying RFID embedded in a mobile phone or PDA for payment using a mobile phone or a PDA And the like have already been disclosed.

However, in applying such RFID to portable devices or other devices, an antenna for transmitting and receiving RFID signals is required to be included in the device or equipment for smooth communication. In order to install a separate RFID module including an antenna to the device or to configure a separate antenna within the device, a separate design and manufacturing is required, and the manufacturing cost increases as the existing processes do not increase, Since space must be provided for purchase, there is a problem in that the portability is reduced due to an increase in the volume or thickness of the device.

Therefore, in the manufacture of existing portable devices, RFID antennas can be manufactured without any additional process, and the manufacturing cost can be reduced by making it possible to embed them in the parts of existing portable devices while minimizing additional costs. There is an urgent need for development of a touch panel device and a method of manufacturing the same.

In order to solve the above problems, the present invention can manufacture a device that can perform a touch screen function at the same time to perform the RFID function more compactly, to make a device such as a mobile phone, PMP, PDA, etc. thin An object of the present invention is to provide a touch panel device.

In addition, an object of the present invention is to provide a method for manufacturing a touch panel device that can manufacture such a multi-use panel without any additional process to reduce the manufacturing cost of the entire device.

In order to achieve the above object, the present invention

In the touch panel device comprising an upper panel, a lower panel and an electrode,

The upper panel has a transparent inner region spaced inward with respect to the edge of the panel as a display unit,

The lower panel is also spaced inwardly with respect to the edge of the panel and has a transparent inner area as a display unit, and is spaced apart and coupled to the lower side of the upper panel.

The electrode is positioned between the edge of the panel and the display unit between the upper panel and the lower panel to receive an electrical signal according to the contact of the upper panel,

The touch panel device further comprises an RFID antenna line disposed between the upper panel and the lower panel and positioned between the electrode and the edge of the panel.

In addition, the present invention

And an upper panel, a lower panel, and an electrode, wherein the upper panel has a transparent inner area spaced inward with respect to an edge of the panel as a display portion, and the lower panel is also transparent inwardly spaced inward with respect to an edge of the panel. In the method of manufacturing a touch panel device having a display unit and spaced apart below the upper panel, the electrode is located between the edge of the panel and the display unit between the upper panel and the lower panel,

In the step of forming an electrode on the upper panel or the lower panel provides a method for manufacturing a touch panel device, characterized in that to form an RFID antenna line positioned between the electrode and the edge of the panel with the electrode at the same time.

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

The present invention relates to a touch panel device, wherein the touch panel device includes an upper panel 10, a lower panel 20, and an electrode 30. The upper panel 10 is spaced inwardly based on an edge of the panel. The inner side area of the display panel 5 has a transparent inner region, and the lower panel 20 is also spaced inward with respect to the edge of the panel. The electrode 30 is positioned between the edge of the panel and the display unit 5 between the upper panel 10 and the lower panel 20 to receive an electrical signal according to the contact of the upper panel 10. The antenna further includes an RFID antenna line 40 disposed between the upper panel 10 and the lower panel 20 and positioned between the electrode 30 and the edge of the panel.

Specific embodiments thereof are as shown in FIGS. 1 to 5. That is, the touch panel device of the present invention is disposed outside the display unit 4 and the electrode 30 between the upper panel 10 and the lower panel 20 as shown in FIG. 1. By using the dead space existing between the two panels to embed the antenna for RFID in this portion. In this way, the touch panel device, which is not utilized in the display unit and is used to combine the touch panel devices, not only arranges electrodes but also arranges an antenna for RFID, thereby manufacturing a touch panel device that performs both functions.

The RFID antenna may be used as a reader antenna when the device to which the touch panel is applied is an RFID reader and as an antenna for the tag when the device serves as a tag.

The fabrication of the antenna line will be described in detail below, but in all kinds of touch panels, an electrode is provided between the upper panel and the lower panel. This is not necessary, and thus it is the same as changing the shape of the pattern without changing the existing process, so that it can be manufactured while minimizing the cost increase other than the material cost.

Preferably, since the reflective layer is preferably provided to improve the performance of the RFID antenna, the RFID antenna line 40 is coupled to the bottom surface of the upper panel 10, and the lower panel 20 is connected to the RFID antenna. The conductor layer 25 is formed on the top surface corresponding to the portion where the antenna antenna line 40 exists, and (in this case, the 'top surface corresponding to the portion where the antenna wire 40 is present' always corresponds to the entire top surface. It does not mean, as shown in Figures 2 to 4 as necessary, when the wires and antenna lines drawn out for the purpose of connection to the external device passes through the same space and causes interference with the conductor layer, except for this part The insulator layer 50 may be further included between the RFID antenna line 40 and the conductor layer 25. That is, a specific embodiment thereof is as shown in FIG. 5, whereby the conductor layer serves as a reflecting plate, so that an antenna having a reflecting plate having an increased directionality of the antenna can be configured. As will be described later, the antenna line may be formed together with the electrode fabricated on the lower surface of the upper panel, the insulating layer serves as a conventional double-sided tape, and the conductive layer is a lower transparent conductive layer formed on the upper surface of the lower panel. When forming the pattern of the layer, since the part corresponding to the antenna line is left without being removed, the reflective layer has a high transmission / reception efficiency without any additional cost increase because the pattern of the pattern is left without changing the existing process. It may be provided with an RFID antenna having a.

Since such a configuration has a common configuration of various touch panel devices in general, the touch panel device includes both a resistive film method, an ultrasonic reflection method, a capacitive method, or an infrared light method. The case corresponds to the touch panel device of the present invention regardless of the method.

2 to 4 show an example of a resistive touch panel device as a specific embodiment thereof. Accordingly, the touch panel device is a resistive film, and the upper panel 10 includes an upper transparent sheet 12 and an upper transparent conductive layer 14 bonded to an area corresponding to the display portion 5 on the lower surface thereof. The lower panel 20 includes a lower transparent sheet 22 and a lower transparent conductive layer 24 coupled to a region corresponding to the display portion 5 on an upper surface thereof, wherein the electrode 30 is formed on the lower panel. The upper transparent conductive layer 14 is composed of a y-axis electrode 32 coupled to the left and right in the longitudinal direction, and the lower transparent conductive layer 24 and the x-axis electrode 34 coupled to the upper and lower sides in the longitudinal direction, the upper The panel 10 further includes an antenna line 40 for RFID between the upper transparent conductive layer 14 on the lower surface of the upper transparent sheet 12 and the edge of the upper transparent sheet 12, and the insulator layer 50 is It is made by coupling between the upper panel 10 and the lower panel 20, the insulator layer (usually double-sided tape) is Connection holes are formed to output the electrical signal of the Y-axis electrode 32 formed in the sub-panel 10 to the outside, and in general, all of these electrodes are formed of Ag paste, so that the paste is protruded into the connection holes to form the lower panel. The cable is connected to the lead wire 36 and transmits a signal to an external device by the lead wire 36 formed on the lower panel, and the antenna wire 40 is similarly provided with two connection holes 55 located on the lower right side of the insulator layer. Through the signal comes to the lower panel and connected to the lead line.

Preferably, the lower transparent conductive layer 24 of the lower panel 20 may be formed up to an area corresponding to the RFID antenna line. As a result, as described above, an antenna line having a reflecting plate may be configured, thereby improving directionality.

The antenna line 40 may be a straight line or other various known forms depending on the loop shape or frequency used as shown.

In addition, the present invention provides a method of manufacturing such a touch panel device, which includes an upper panel 10, a lower panel 20 and an electrode 30, the upper panel 10 is based on the edge of the panel Spaced apart inward to have a transparent inner area as the display unit 5, and the lower panel 20 is also spaced inward with respect to the edge of the panel and has a transparent inner area as the display unit 5, and In the method of manufacturing a touch panel device which is spaced apart downward, the electrode 30 is located between the edge of the panel and the display unit 5 between the upper panel 10 and the lower panel 20, RFID antenna positioned between the electrode 30 and the edge of the panel 10 or 20 together with the electrode 30 in the step of forming the electrode 30 on the upper panel 10 or the lower panel 20. It is to form the line 40 at the same time.

That is, in manufacturing the touch panel device of the present invention having the configuration as described above, in the step of forming the electrode on the upper panel or the lower panel for RFID positioned between the electrode and the edge of the panel together with the electrode Simultaneously forming the antenna line, which forms a pattern using the same material (eg, Ag paste) for the electrode and the antenna line, to which all the techniques used for forming the existing electrode pattern can be equally applied. .

The antenna line may be formed at a lower portion of the upper panel or an upper portion of the lower panel as necessary, and in manufacturing the touch panel, the upper panel and the lower panel are always subjected to a process of forming electrodes. Always form antenna wires together.

Preferably, as described above, in order to improve the directionality of the antenna, it is preferable to form a reflection layer together. For this purpose, the RFID antenna line 40 includes an electrode 30 coupled to the lower surface of the upper panel 10. In the forming step, the conductive layer 25 is formed on the lower surface of the upper panel 10 together with the electrode 30 and on the upper surface corresponding to the portion where the RFID antenna line 40 is present on the lower panel 20. And forming an insulator layer 50 between the RFID antenna line 40 and the conductor layer 25.

A specific example thereof is as shown in FIG. 5. A double-sided tape or the like may be applied to the insulator layer, which may further include a connection hole as shown in FIGS. 2 to 4 according to the configuration of the panel.

In particular, when the touch panel device is a resistive film, the conductor layer may be configured by changing only a pattern formed in an existing process without a separate process. That is, manufacturing an upper transparent sheet 12 for the upper panel 10 and forming an upper transparent conductive layer 14 bonded to a region corresponding to the display unit 5 on the lower surface of the upper transparent sheet 12. RFID between the y-axis electrode 32 coupled to the left and right sides of the upper transparent conductive layer 14 in the longitudinal direction and the upper transparent conductive layer 14 and the edge of the upper transparent sheet 12 on the lower surface of the upper transparent sheet 12. Simultaneously forming the antenna line 40 for the lower panel 20, and manufacturing the lower transparent sheet 22 for the lower panel 20, and the area corresponding to the display unit 5 on the upper surface of the lower transparent sheet 22 and the RFID. Forming lower transparent conductive layers 24 and 25 coupled to an area corresponding to the antenna line 40, and inserting an insulator layer 50 between the upper panel 10 and the lower panel 20. Combining the panel 10 and the lower panel 20 is configured.

As the upper transparent conductive layer 14, a conductive material layer such as ITO or IZO is used, which may proceed in a form of partially etching the ITO coated on the upper transparent sheet to leave only the display part. Can be applied. In addition, the formation of the Y-axis electrode and the antenna line, as described above, processes the known electrode forming process in one process only by changing the pattern shape, and the pattern of the lower transparent conductive layer 24 in the lower panel 20. In the case of forming, in the case shown in Figs. 2 to 4, only the part corresponding to the display part is left and the remaining part is removed. In this case, in addition to this part, the area corresponding to the RFID antenna line 40 may be left. Have a cross-sectional structure as shown in 5. At this time, the 'region corresponding to the portion where the antenna line 40 exists' does not necessarily mean the entire region corresponding thereto, as shown in FIGS. 2 to 4 as necessary, for connection with an external device. When the wires and antenna lines drawn to the outside pass through the same space and cause interference (short circuit) with the conductor layer, this means a portion except for this.

Thus, for example, when ITO is coated on the lower transparent sheet as a whole, only the part corresponding to the display unit and the antenna line may be selectively left, and only the remaining part may be removed by etching, etc. Proceed without further processing.

Finally, the upper panel and the lower panel formed as above are bonded to each other with an insulator layer (for example, a double-sided tape) interposed therebetween to complete the panel. In this case, since the formation of the connection hole for the transmission of the electrical signal or the configuration of the lead line, etc. corresponds to the known art, a detailed description thereof will be omitted, but for the construction and operation of the touch panel, such a configuration must be provided. In the touch panel device as shown in FIG. 4, since a connection line with an external device is drawn out as shown in the center portion on the right side thereof, a PCB or an FPCB for connecting to the external device may be additionally connected thereto.

According to the touch panel device and the manufacturing method thereof of the present invention, by combining the RFID antenna line to the touch panel device integrally and connected to the RFID chip or the device, to perform the RFID function more compactly and at the same time to perform the touch screen function. It is possible to manufacture a device that can be, if applied to a mobile phone, PMP, PDA, etc. There is an advantage that can be made thin of these devices.

In addition, the manufacturing method of the touch panel device of the present invention has the advantage that can be manufactured without an additional process compared to the production of such a multi-use panel can reduce the manufacturing cost of the entire device.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various modifications and changes made by those skilled in the art without departing from the spirit and scope of the present invention described in the claims below. Changes are also included within the scope of the invention.

Claims (8)

In the touch panel device comprising an upper panel, a lower panel and an electrode, The upper panel has a transparent inner region spaced inward with respect to the edge of the panel as a display unit, The lower panel is also spaced inwardly with respect to the edge of the panel and has a transparent inner area as a display unit, and is spaced apart and coupled to the lower side of the upper panel. The electrode is positioned between the edge of the panel and the display unit between the upper panel and the lower panel to receive an electrical signal according to the contact of the upper panel, And an antenna line for RFID disposed between the upper panel and the lower panel and positioned between the electrode and the edge of the panel. The method of claim 1, The RFID antenna line is coupled to the lower surface of the upper panel, The lower panel has a conductor layer on an upper surface corresponding to a portion where the RFID antenna line exists. And an insulator layer between the RFID antenna line and the conductor layer. The method according to claim 1 or 2, The touch panel device is a touch panel device, characterized in that the resistive film type, ultrasonic reflection type or capacitive type or infrared light type. The method of claim 3, The touch panel device is a resistive film type, The upper panel includes an upper transparent sheet and an upper transparent conductive layer coupled to an area corresponding to the display unit on a lower surface thereof. The lower panel includes a lower transparent sheet and a lower transparent conductive layer coupled to a region corresponding to a display unit on an upper surface thereof. The electrode is composed of a y-axis electrode coupled to the left and right sides of the upper transparent conductive layer in the longitudinal direction, and an x-axis electrode coupled to the upper and lower sides of the lower transparent conductive layer in the longitudinal direction, The upper panel further includes an antenna antenna for RFID between the upper transparent conductive layer on the lower surface of the upper transparent sheet and the edge of the upper transparent sheet, The lower transparent conductive layer of the lower panel is formed to an area corresponding to the RFID antenna line, And the insulator layer is coupled between the upper panel and the lower panel. The method according to any one of claims 1 to 3, The RFID antenna is a touch panel device, characterized in that the loop shape including the electrode therein. And an upper panel, a lower panel, and an electrode, wherein the upper panel has a transparent inner area spaced inward with respect to an edge of the panel as a display portion, and the lower panel is also transparent inwardly spaced inward with respect to an edge of the panel. In the method of manufacturing a touch panel device having a display unit and spaced apart below the upper panel, the electrode is located between the edge of the panel and the display unit between the upper panel and the lower panel, And forming an RFID antenna line positioned between the electrode and the edge of the panel at the same time as forming an electrode on the upper panel or the lower panel. The method of claim 6, The RFID antenna line is formed together with the electrode on the lower surface of the upper panel in the step of forming an electrode coupled to the lower surface of the upper panel, A conductor layer is formed on an upper surface of the lower panel corresponding to a portion where the RFID antenna line is present; And coupling an insulator layer between the RFID antenna line and the conductor layer. The method of claim 7, wherein Manufacturing an upper transparent sheet for an upper panel and forming an upper transparent conductive layer bonded to a region corresponding to a display unit on a lower surface of the upper transparent sheet; Simultaneously forming an RFID antenna line between a y-axis electrode coupled to the left and right sides of the upper transparent conductive layer in a longitudinal direction, and an upper transparent conductive layer on a lower surface of the upper transparent sheet and an edge of the upper transparent sheet; Manufacturing a lower transparent sheet for a lower panel, and forming a lower transparent conductive layer on an upper surface of the lower transparent sheet, the lower transparent conductive layer being coupled to a region corresponding to a display portion and a region corresponding to the RFID antenna line; And, And coupling the upper panel and the lower panel by sandwiching an insulator layer between the upper panel and the lower panel.
KR1020070062059A 2007-06-25 2007-06-25 Touch panel device and method of preparing the same KR20080113506A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101032021B1 (en) * 2009-04-20 2011-05-02 에이디반도체(주) Resistive touch screen identifying touch coordinates by using electric charging time of capacitor
WO2011137861A2 (en) * 2011-07-01 2011-11-10 华为终端有限公司 Terminal and method of manufacturing touch screen of terminal
WO2012088111A2 (en) * 2010-12-22 2012-06-28 Intel Corporation Antenna integrated into a touch sensor of a touchscreen display
CN104123030A (en) * 2013-04-26 2014-10-29 胜华科技股份有限公司 Touch control panel module with antenna structure and touch control display panel
KR20150014723A (en) * 2013-07-30 2015-02-09 엘지이노텍 주식회사 Touch window and display with the same
WO2021174773A1 (en) * 2020-03-05 2021-09-10 深圳市鸿合创新信息技术有限责任公司 Touch device and manufacturing method therefor

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101032021B1 (en) * 2009-04-20 2011-05-02 에이디반도체(주) Resistive touch screen identifying touch coordinates by using electric charging time of capacitor
WO2012088111A2 (en) * 2010-12-22 2012-06-28 Intel Corporation Antenna integrated into a touch sensor of a touchscreen display
WO2012088111A3 (en) * 2010-12-22 2012-10-11 Intel Corporation Antenna integrated into a touch sensor of a touchscreen display
US9184502B2 (en) 2010-12-22 2015-11-10 Intel Corporation Antenna integrated into a touch sensor of a touchscreen display
US10186754B2 (en) 2010-12-22 2019-01-22 Intel Corporation Antenna integrated into a touch sensor of a touchscreen display
WO2011137861A2 (en) * 2011-07-01 2011-11-10 华为终端有限公司 Terminal and method of manufacturing touch screen of terminal
WO2011137861A3 (en) * 2011-07-01 2012-05-10 华为终端有限公司 Terminal and method of manufacturing touch screen of terminal
US9484965B2 (en) 2011-07-01 2016-11-01 Huawei Device Co., Ltd. Terminal and method for making touchscreen of terminal
CN104123030A (en) * 2013-04-26 2014-10-29 胜华科技股份有限公司 Touch control panel module with antenna structure and touch control display panel
KR20150014723A (en) * 2013-07-30 2015-02-09 엘지이노텍 주식회사 Touch window and display with the same
WO2021174773A1 (en) * 2020-03-05 2021-09-10 深圳市鸿合创新信息技术有限责任公司 Touch device and manufacturing method therefor

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