KR100978249B1 - Touch panel with multi touch area - Google Patents

Touch panel with multi touch area Download PDF

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Publication number
KR100978249B1
KR100978249B1 KR1020080056270A KR20080056270A KR100978249B1 KR 100978249 B1 KR100978249 B1 KR 100978249B1 KR 1020080056270 A KR1020080056270 A KR 1020080056270A KR 20080056270 A KR20080056270 A KR 20080056270A KR 100978249 B1 KR100978249 B1 KR 100978249B1
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KR
South Korea
Prior art keywords
touch
substrate
touch panel
regions
areas
Prior art date
Application number
KR1020080056270A
Other languages
Korean (ko)
Other versions
KR20090130572A (en
Inventor
오영진
최진홍
Original Assignee
한국터치스크린(주)
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.)
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Priority to KR1020080056270A priority Critical patent/KR100978249B1/en
Publication of KR20090130572A publication Critical patent/KR20090130572A/en
Application granted granted Critical
Publication of KR100978249B1 publication Critical patent/KR100978249B1/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416Control or interface arrangements specially adapted for digitisers
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04105Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position

Abstract

The present invention can be easily applied to the needs of additional button design by implementing a plurality of touch areas, and a plurality of touch areas for controlling electrical signals generated in the plurality of touch areas through one printed circuit board. A touch panel having a plurality of touch regions according to the present invention includes an upper substrate and a lower substrate facing each other and an adhesive provided between the upper substrate and the lower substrate. The upper substrate and the lower substrate are divided into a plurality of touch regions by an adhesive.
Touch panel, touch area

Description

Touch panel with multiple touch areas {Touch panel with multi touch area}

The present invention relates to a touch panel having a plurality of touch regions, and more particularly, by implementing the plurality of touch regions, the present invention can be easily applied to the needs of additional button designs, and the like through a single printed circuit board. The present invention relates to a touch panel having a plurality of touch regions capable of controlling electrical signals generated in the touch regions.

A touch panel is a device mounted on the surface of a display device to convert physical contact of a user's finger or touch pen into an electrical signal and output the electrical signal. A liquid crystal display and a plasma display panel are used. It is applied to panels, EL (electro-luminescence) devices, and the like.

The touch panel is classified into a capacitive type, a resistive film type, an ultrasonic type, an infrared type, and the like according to an operating principle. The structure of the resistive touch panel is as follows. 1 is a cross-sectional view of a typical 4-wire resistive touch panel, and FIG. 2 is a plan view of a lower substrate of a typical resistive touch panel.

As shown in FIG. 1, the resistive touch panel 100 includes an upper substrate 120 and a lower substrate 110, and the upper substrate 120 and the lower substrate 110 are insulated substrates, respectively. 111 and 121 and transparent conductive layers 112 and 122 stacked on the entire surface of the insulating substrates 111 and 121. The upper substrate 120 and the lower substrate 110 are integrally formed through the adhesive layer 130, and a dot spacer (not shown) is provided on the lower substrate 110.

In the resistive touch panel 100, an external physical force is applied on the upper substrate 120 so that the transparent conductive layer 121 of the upper substrate 120 and the transparent conductive layer 111 of the lower substrate 110 are provided. When this contact is made, the position of the contact point is recognized by recognizing the X-axis and Y-axis potential of the contact point.

As described above, the resistive touch panel 100 is provided with an adhesive 130 to connect the upper substrate 120 and the lower substrate 110, and has a potential at each of the upper substrate 120 and the lower substrate 110. Since the generating electrode is provided, when the resistive touch panel 100 having the above structure is coupled to the upper portion of the display device, the adhesive 130 and the potential generating electrodes 141 and 142 are visually visible. Not only does it hurt the aesthetics, it is not without concern about the stability of the device. In order to solve such a problem, conventionally, an upper end of a resistive touch panel is provided with a mechanism such as a bezel, which serves to cover an adhesive and an electrode for dislocation generation.

Meanwhile, an additional button may be provided in an area other than the touch area defined by the resistive touch panel 100. In this case, the resistive touch panel 100 and the resistive touch panel 100 may be provided as shown in FIG. Has a structure in which a membrane switch 170 serving as an additional button is provided separately and a support 160 such as a bezel is provided on the membrane switch 170 and the resistive touch panel 100. .

The configuration of FIG. 3 has an advantage in that independent signals can be applied even in a region other than the touch region defined by the resistive touch panel 100 as the membrane switch is provided, but the membrane switch 170 and the resistive touch Increasing the process by attaching the panel 100 to the support (160), the gap between the membrane switch 170 and the resistive touch panel 100 and step generation, the membrane switch 170 and the resistive touch There is a problem that a separate FPCB 150 is required for the panel 100. Among these problems, problems such as the occurrence of empty spaces and steps can be solved through mechanical design changes, but other problems are difficult to solve through mechanical design changes.

The present invention has been made to solve the above problems, by implementing a plurality of touch areas can be easily applied to the needs of additional button design, etc., generated in a plurality of touch areas through one printed circuit board It is an object of the present invention to provide a touch panel having a plurality of touch regions capable of controlling electrical signals.

In order to achieve the above object, a touch panel having a plurality of touch regions according to the present invention includes an upper substrate and a lower substrate facing each other, and an adhesive provided between the upper substrate and the lower substrate. The upper substrate and the lower substrate is characterized by being divided into a plurality of touch areas.

A passivation layer may be further provided on the upper substrate, and the passivation layer may visually expose the plurality of touch regions, and a blocking layer pattern patterned to expose only the plurality of touch regions may be provided on the lower surface of the passivation layer. . In addition, a potential generating electrode may be provided around each of the touch regions.

A printed circuit board is further provided on one side of the lower substrate to process touch signals generated from the respective touch regions, and the printed circuit board is electrically connected to a potential generating electrode provided in the respective touch regions. The upper substrate and the lower substrate may be formed of an insulating substrate and a transparent conductive layer, respectively.

On the other hand, the touch panel having a plurality of touch areas according to the present invention is provided with a plurality of touch areas, provided on the touch pattern layer and the touch pattern layer having one or a plurality of touch patterns in each touch area. And a protective film for visually exposing only each touch area.

A metal wiring for processing an electrical signal generated from each touch pattern is provided around each touch area, and a blocking film pattern patterned to expose only a plurality of touch areas is provided on a lower surface of the passivation layer. The region in which the blocking layer pattern is formed includes the region in which the metal wiring is formed.

A touch panel having a plurality of touch areas according to the present invention has the following effects.

By implementing a plurality of touch areas, it can be easily applied to the needs of additional button design, etc., and it is possible to control the electrical signals generated in the plurality of touch areas through a single printed circuit board to simplify the process. And lower the manufacturing cost.

Hereinafter, a touch panel having a plurality of touch regions according to an embodiment of the present invention will be described in detail with reference to the drawings. 4 is a plan view of a touch panel having a plurality of touch regions according to an embodiment of the present invention, FIG. 5 is a plan view of the touch panel excluding the upper substrate of FIG. 4, and FIG. 6 is a line AA ′ of FIG. 4. According to the cross-sectional view.

First, as shown in FIG. 4, the touch panel 400 having a plurality of touch areas according to an embodiment of the present invention includes a plurality of touch areas. Here, the touch area refers to an area in which an electrical signal corresponding to an external physical contact, that is, a touch signal can be generated, corresponds to a touch area implemented in a conventional touch panel, and a plurality of touches in the present invention. The region means that a plurality of such touch regions are provided.

As illustrated in FIG. 5, the plurality of touch areas are divided by adhesives 430 for adhering the upper substrate and the lower substrate. That is, as shown in FIG. 6, the upper substrate 420 and the lower substrate 410 are integrally connected to each other through the adhesive 430, and are defined as a plurality of touch regions by the adhesive 430.

Meanwhile, a potential generating electrode 440 is provided around each touch area provided on the lower substrate 410 to recognize a touch signal generated in each touch area. In this case, when only a touch or not is required, both pairs of potential generation electrodes 440 of the X-axis potential generating electrode 440 and the Y-axis potential generating electrode 440 are not provided. Only a pair of potential generating electrodes 440 may be provided.

On the upper substrate 420, a protective film 460 made of a transparent material is further provided to protect the potential generating electrode 440 and the adhesive 430 from being visible. On the lower surface of the passivation layer 460, a blocking layer pattern 461 is provided at a portion corresponding to a region where the potential generating electrode 440 and the adhesive 430 are located. The blocking layer pattern 461 may be formed through silk screen printing, and the potential generating electrode 440 and the adhesive 430 may not be visually exposed to the outside by the blocking layer pattern 461.

One side of the lower substrate 410 is provided with a printed circuit board 450, such as a flexible printed circuit board (FPCB) for processing a touch signal generated from the touch area, the printed circuit board 450 Is electrically connected to the potential generating electrode 440 provided in the plurality of touch regions. That is, when the plurality of touch areas are divided into a first touch area, a second touch area, ..., and an n-th touch area, the potential generating electrode 440 provided in the first touch area and the second touch area are provided. All of the potential generating electrode 440 and the potential generating electrode 440 provided in the n-th touch region are electrically connected to the printed circuit board. In other words, all of the potential generating electrodes 440 provided in the plurality of touch areas are controlled through one printed circuit board.

On the other hand, the upper substrate 420 and the lower substrate 410 may be composed of a combination of the insulating substrate 411, 421 and the transparent conductive layer 412, 422, as in the prior art, the lower substrate 410 in detail Insulation substrate 411 of the () is composed of a glass substrate and the insulating substrate 421 of the upper substrate 420 is a polyethylene (poly terephthalte (PET), PC (poly carbonate), PMMA (poly (methyl methacrylate)) It may be composed of a polymer substrate, and the transparent conductive layers 412 and 422 may be formed of indium tin oxide (ITO) or the like.

In the above, a touch panel having a plurality of touch areas according to an embodiment of the present invention has been described. The above-described embodiment is based on a resistive touch panel, but a touch panel having a plurality of touch regions according to the present invention can be implemented in a capacitive manner. That is, as shown in FIG. 7, the touch pattern layer 710 including the touch pattern 711 is divided into a plurality of touch areas in a plane, and one or more touch patterns 711 are provided in each touch area. A protective film 720 of transparent material is provided on the touch pattern layer 710. In this case, a metal wiring 712 is provided around each touch area for processing an electrical signal generated from each touch pattern 711, and the metal wiring 712 generates electric potential of the resistive touch panel. Like the electrode, it should not be visually exposed, and the blocking pattern 721 is formed on the lower surface of the protective film 720 corresponding to the region where the metal wiring 712 is formed to block the visual exposure of the metal wiring 712. It is provided.

In addition, a printed circuit board (not shown), such as a flexible printed circuit board (FPCB), is provided at one side of the touch pattern layer 710, and the printed circuit board is provided at each touch area. Connected to the metal wires 712 to process touch signals generated from the respective touch regions. In the capacitive method, the passivation layer 720 and the touch pattern layer 710 may be connected to each other through an optical clear adhesive (OCA).

1 is a cross-sectional view of a typical 4-wire resistive touch panel.

2 is a plan view of a lower substrate of a general resistive touch panel.

3 is a cross-sectional view of a touch panel provided with an additional button according to the prior art.

4 is a plan view of a touch panel having a plurality of touch regions according to an embodiment of the present invention.

5 is a plan view of the touch panel except for the upper substrate of FIG. 4.

6 is a cross-sectional view taken along line AA ′ of FIG. 4.

7 is an exploded perspective view of a touch panel having a plurality of touch regions according to another embodiment of the present invention.

Description of the main parts of the drawing

410: lower substrate 420: upper substrate

430: adhesive 440: electrode for generating potential

450: printed circuit board 460: protective film

461: barrier pattern

Claims (9)

  1. An upper substrate and a lower substrate provided to face each other; And
    It comprises an adhesive provided between the upper substrate and the lower substrate,
    The upper substrate and the lower substrate are divided into a plurality of touch regions by the adhesive.
    A protective film is further provided on the upper substrate, and the protective film visually exposes the plurality of touch areas.
    A touch panel having a plurality of touch regions, wherein the blocking layer pattern is patterned to expose only a plurality of touch regions on the lower surface of the passivation layer.
  2. delete
  3. delete
  4. The touch panel of claim 1, wherein an electrode for generating a potential is disposed around each of the touch areas.
  5. 5. The potential generating electrode of claim 4, further comprising a printed circuit board configured to process touch signals generated from the respective touch areas on one side of the lower substrate, wherein the printed circuit board is provided in each of the touch areas. Touch panel having a plurality of touch areas, characterized in that electrically connected with.
  6. The touch panel of claim 1, wherein each of the upper and lower substrates comprises an insulating substrate and a transparent conductive layer.
  7. A touch pattern layer provided with a plurality of touch regions, and having one or a plurality of touch patterns in each touch region; And
    It is provided on the touch pattern layer, and comprises a protective film for visually exposing only each touch area,
    Metal wires are provided around the respective touch areas to process electrical signals generated from the respective touch patterns.
    A barrier layer pattern patterned to expose only a plurality of touch regions is provided on a lower surface of the passivation layer, and the region on which the barrier layer pattern is formed includes a region in which the metal wiring is formed. panel.
  8. delete
  9. delete
KR1020080056270A 2008-06-16 2008-06-16 Touch panel with multi touch area KR100978249B1 (en)

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Application Number Priority Date Filing Date Title
KR1020080056270A KR100978249B1 (en) 2008-06-16 2008-06-16 Touch panel with multi touch area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080056270A KR100978249B1 (en) 2008-06-16 2008-06-16 Touch panel with multi touch area

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KR100978249B1 true KR100978249B1 (en) 2010-08-27

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101104930B1 (en) * 2010-02-24 2012-01-12 주식회사 토비스 Structure of touch panel using resistance film type and system comprising the touch panel and method for receiving touch panel
KR101104931B1 (en) * 2010-02-24 2012-01-12 주식회사 토비스 Structure of touch panel using resistance film type and system comprising the touch panel and method for receiving touch input
KR101658149B1 (en) * 2010-03-03 2016-09-21 엘지디스플레이 주식회사 Display Device Including Touch Panel
CN103176641A (en) * 2011-12-25 2013-06-26 宸鸿科技(厦门)有限公司 Touch panel and manufacturing method thereof
KR102119603B1 (en) * 2013-09-06 2020-06-08 엘지이노텍 주식회사 Touch window and display with the same
KR102119608B1 (en) * 2013-09-11 2020-06-08 엘지이노텍 주식회사 Touch window and display with the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11237954A (en) * 1998-02-20 1999-08-31 Nippon Signal Co Ltd:The Touch panel
KR20010024454A (en) * 1997-10-09 2001-03-26 니폰샤신인사츠가부시키가이샤 High strength touch panel and method of manufacturing the same
KR20070106888A (en) * 2006-05-01 2007-11-06 삼성전자주식회사 Apparatus and method for providing area separate means with touch function

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010024454A (en) * 1997-10-09 2001-03-26 니폰샤신인사츠가부시키가이샤 High strength touch panel and method of manufacturing the same
JPH11237954A (en) * 1998-02-20 1999-08-31 Nippon Signal Co Ltd:The Touch panel
KR20070106888A (en) * 2006-05-01 2007-11-06 삼성전자주식회사 Apparatus and method for providing area separate means with touch function

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