TWI485605B - Touch panel - Google Patents

Touch panel Download PDF

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Publication number
TWI485605B
TWI485605B TW101136006A TW101136006A TWI485605B TW I485605 B TWI485605 B TW I485605B TW 101136006 A TW101136006 A TW 101136006A TW 101136006 A TW101136006 A TW 101136006A TW I485605 B TWI485605 B TW I485605B
Authority
TW
Taiwan
Prior art keywords
side
circuit board
flexible circuit
substrate
connecting
Prior art date
Application number
TW101136006A
Other languages
Chinese (zh)
Other versions
TW201329830A (en
Inventor
Pi Lin Lo
Te Mu Chen
Yi Fan Hsueh
Yen Cheng Lin
Original Assignee
Htc Corp
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
Priority to US201261583571P priority Critical
Application filed by Htc Corp filed Critical Htc Corp
Publication of TW201329830A publication Critical patent/TW201329830A/en
Application granted granted Critical
Publication of TWI485605B publication Critical patent/TWI485605B/en

Links

Description

Touch panel

The present invention relates to a touch panel, and more particularly to a capacitive touch panel.

In recent years, with the rapid development and application of information technology, wireless mobile communication and information appliances, many information products have been input devices such as traditional keyboards or mice for the purpose of being more convenient, lighter and more humanized. , changed to use a touch panel (Touch Panel) as an input device.

The touch panel can be roughly classified into a resistive touch panel, a capacitive touch panel, an optical touch panel, an acoustic wave touch panel, and an electromagnetic touch panel according to different sensing forms. Since capacitive touch panels have advantages such as fast response time, good reliability, and high definition compared with other types of touch panels, they are widely used in various types of handheld electronic devices.

The capacitive touch panel constitutes a sensing array by a plurality of electrode lines interdigitated to achieve surface sensing. When the user touches the touch panel with a finger, the touch panel determines the position of the finger contact according to the change in capacitance on the sensing array.

It is known that the peripheral lines of the touch panel or the connection lines of the electrode lines occupy the wiring space on the substrate. When the sensing resolution increases, complex traces will occupy a larger border area or limit the setting of the electrode lines. And it is easy to cause unintended electrical interference. Thus, it is not conducive to the structural and electrical design of the touch panel.

The invention provides a touch panel which can effectively utilize the wiring space on the substrate to enhance the tolerance of the structural and electrical design.

The invention provides a touch panel, which comprises a substrate, a plurality of first electrode lines, a plurality of second electrode lines and a plurality of connecting lines. The first electrode lines are juxtaposed on the substrate and extend from a first side of the substrate to an opposite second side in a first direction. The second electrode lines are arranged side by side on the substrate and extend in the second direction, respectively. The first direction intersects the second direction. The connecting lines are located at the periphery of the substrate, and are respectively connected to the second electrode lines, wherein a connecting line of a first portion extends to the first side, and a connecting line of a second portion extends to the second side.

Another touch panel includes a substrate, a plurality of first electrode lines, a plurality of electrode pads, and a plurality of connecting lines. The first electrode lines are arranged side by side on the substrate and extend from a first side of the substrate to an opposite second side in a first direction. The electrode pad is disposed on the substrate. The connecting wires are respectively connected to the electrode pads, wherein a connecting portion of the first portion extends to the first side, a connecting line of the second portion extends to the second side, and each connecting line is electrically connected to the corresponding other connecting line, respectively, to be connected in series A corresponding electrode pad forms a plurality of second electrode lines. The second electrode lines are arranged side by side on the substrate and extend in a second direction. The first direction intersects the second direction.

In an embodiment of the invention, the touch panel further includes a first a flexible circuit board and a second flexible circuit board are respectively disposed on the first side and the second side of the substrate, wherein the connecting portion of the first portion is connected to the first flexible circuit board, and the second portion The cable is connected to the second flexible circuit board.

In an embodiment of the invention, the touch panel further includes a first connector and a second connector. The first connector and the second connector are respectively disposed at ends of the first flexible circuit board and the second flexible circuit board.

In an embodiment of the invention, the touch panel further includes a connector and a wire. The wire is located at a periphery of the substrate, and is electrically connected to the first flexible circuit board and the second flexible circuit board. The connector is disposed at an end of the first flexible circuit board or the second flexible circuit board.

In an embodiment of the invention, the material of the connecting wire comprises a metal.

In an embodiment of the invention, the material of the connecting wire comprises a conductive transparent material.

The above described features and advantages of the present invention will be more apparent from the following description.

1 is a schematic diagram of a touch panel in accordance with an embodiment of the present invention. Referring to FIG. 1 , the touch panel 100 of the present embodiment includes a substrate 110 , a plurality of first electrode lines 120 , a plurality of second electrode lines 130 , and a plurality of connection lines 140 . The first electrode lines 120 are arranged side by side on the substrate 110 and extend from a first side 112 of the substrate 110 to an opposite second side 114 along a first direction D1. The second electrode lines 130 are arranged side by side on the substrate 110. And extending in the second direction D2, respectively, wherein the first direction D1 intersects the second direction D2. The connection lines 140 are located at the periphery of the substrate 110 and are respectively connected to the second electrode lines 130, wherein a portion of the connection lines 140a extend to the first side 112 and another portion of the connection lines 140b extend to the second side 114. Since the connecting line 140 is located at the periphery of the substrate 110, the material of the connecting line 140 can be any conductive material. In the embodiment, the material of the connecting line 140 is, for example, a metal or a transparent conductive material. The number of the first electrode lines 120 and the second electrode lines 130 of the touch panel 100 may be equal or different. The present invention does not limit the number of the first electrode lines 120 and the second electrode lines 130. .

In the above, the first electrode line 120 and the second electrode line 130 are arranged to intersect each other, and surface sensing can be achieved. When the user touches the touch panel 100 with a finger, the first electrode line 120 and the second electrode line 130 of the touch panel 100 generate a change in capacitance at a position where the finger contacts. The touch panel 100 can calculate the coordinates of the contact point and transmit it to the electronic device connected thereto by the change in capacitance.

In this embodiment, the first electrode line 120 and the second electrode line 130 may be disposed on the same plane or different planes. For example, the first electrode line 120 and the second electrode line 130 may be respectively disposed on opposite surfaces of the substrate 110 or may be disposed on the same surface of the substrate 110. In the fabrication, for example, the first electrode line 120 and the second electrode line 130 are formed on the same surface or opposite surfaces of the substrate 110 with the substrate 110 as a substrate. The first substrate 102 is, for example, a light-transmitting substrate such as glass or PET. Alternatively, the first electrode line 120 and the second electrode line 130 may be respectively disposed on different substrates. For example, the first electrode line 120 is formed on the substrate 110, and the second electrode line 130 is formed on another substrate (not shown), and the two substrates are bonded to each other by, for example, optically clear adhesive (OCA). .

In this embodiment, the touch panel 100 further includes a first flexible circuit board 150, a second flexible circuit board 160, a first connector 170, and a second connector 180. The first flexible circuit board 150 and the second flexible circuit board 160 are respectively disposed on the first side 112 and the second side 114 of the substrate 110, and the first part of the connection line 140a is connected to the first flexible circuit as shown in FIG. The board 150 has a second portion of the connection line 140b connected to the second flexible circuit board 160. The first connector 170 and the second connector 180 are respectively disposed at the ends of the first flexible circuit board 150 and the second flexible circuit board 160, so that the first flexible circuit board 150 and the second flexible circuit board 160 can respectively pass through the first connection. The device 170 and the second connector 180 are connected to a control circuit board (not shown).

As shown in the above configuration, the connection line 140 is connected to the first side 112 of the substrate 110 and the second side 114 of the first side 112 to disperse the wiring of the touch panel 100. In addition, in this embodiment, the first flexible circuit board 150 and the second flexible circuit board 160 are respectively disposed on the first side 112 and the second side 114 of the substrate 110, so that the connection lines 140 are respectively connected to the first flexible circuit board 150 and the first Two flexible circuit boards 160. Compared with the wiring manner of the same side of the substrate 110 to which all the connecting lines 140 are connected, the present embodiment can effectively utilize the wiring space on the substrate to improve the margin of the structural and electrical design, and effectively reduce the substrate. Unexpected electrical interference caused by excessive wiring on the wiring.

2 is a diagram of a touch panel according to another embodiment of the present invention. intention. The structure of the touch panel 100a of the present embodiment is substantially similar to that of the touch panel 100. The first and second flexible circuit boards 150 and 160 of the touch panel 100 are transmitted through the first connector 170. And the second connector 180 is connected to a control circuit board (not shown), and the first connector 170 and the second connector 180 of the touch panel 100a of the embodiment are electrically connected to each other via the wire 190. The same connector 170 is connected to the control circuit board (not shown). In the embodiment, the touch panel 100a includes a connector 170 and a wire 190. The wire 190 is located at the periphery of the substrate 110 and electrically connected to the first flexible circuit board 150 and the second flexible circuit board 160. The connector 170 is disposed at an end of the first flexible circuit board 150 or the second flexible circuit board 160. In other words, the embodiment selects the connector 170 to be disposed at the end of the first flexible circuit board 150 (shown in FIG. 2 ) or the second flexible circuit board 160 , and connects the first flexible circuit by the wire 190 on the substrate 110 . The board 150 and the second flexible circuit board 160 enable the first flexible circuit board 150 and the second flexible circuit board 160 to be connected to the control circuit board (not shown) through the same connector 170. In this way, the amount of connectors and flexible circuit boards can be reduced to save manufacturing costs.

3 is a schematic diagram of a touch panel in accordance with another embodiment of the present invention. Referring to FIG. 3 , in the embodiment, the second electrode line 230 of the touch panel 200 includes a plurality of electrode pads 232 . The electrode pad 232 is disposed on the substrate 210. The connecting wires 240 are respectively connected to the electrode pads 232, wherein the connecting wires 240a of the first portion extend to the first side 212 of the substrate 210, the connecting wires 240b of the second portion extend to the second side 214, and the connecting wires 240 respectively follow the second direction D2 is electrically connected to the corresponding other connecting line 240, and is connected in series The electrode pad 232 forms a plurality of second electrode lines 230 extending in the second direction D2. As such, the embodiment can also disperse the wiring of the touch panel 200, thereby reducing the space required for wiring.

The second electrode line 230 is formed by electrically connecting the corresponding electrode pads 232 in the second direction D2 on the surface of the substrate 210 via the connection line 240. Therefore, in the embodiment, the material of the connection line 240 is formed. The conductive transparent material is, for example, a transparent material such as indium tin oxide (ITO) or indium zinc oxide (IZO). In this way, the problem of obscuring the user's line of sight of the opaque metal connection line can be avoided. In addition, as described in the previous embodiment, the first flexible circuit board 250 and the second flexible circuit board 260 are respectively disposed on the first side 212 and the second side 214 of the substrate 210, so that the connection lines 240 are respectively connected. The first flexible circuit board 250 and the second flexible circuit board 260 are provided. In this embodiment, the touch panel 200 further includes a first connector 270 and a second connector 280 respectively disposed at the ends of the first flexible circuit board 250 and the second flexible circuit board 260, so that the first flexible circuit board 250 and The second flexible circuit board 260 can be connected to a control circuit board (not shown) through the first connector 270 and the second connector 280, respectively.

4 is a schematic diagram of a touch panel in accordance with another embodiment of the present invention. It is to be noted that the same reference numerals are used to designate the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the detailed description thereof will not be repeated here.

Referring to FIG. 4 , the touch panel 200 a of the present embodiment is similar to the touch panel 200 of FIG. 3 , but the first and second softness of the touch panel 200 described above. The first connector 270 and the second connector 280 of the touch panel 200a of the present embodiment are connected to a control circuit board (not shown) through the first or second connectors 170 and 180. Then, they are electrically connected to each other via the wires 290, and then connected to the control circuit board (not shown) by the same connector 270. In the embodiment, the touch panel 200a includes a connector 270 and a wire 290. The wire 290 is located at the periphery of the substrate 110 and electrically connected to the first flexible circuit board 250 and the second flexible circuit board 260. The connector 270 is disposed at the end of the first flexible circuit board 250 or the second flexible circuit board 260. In other words, in this embodiment, the connector 270 is disposed at the end of the first flexible circuit board 250 (shown in FIG. 4 ) or the second flexible circuit board 260 , and the first flexible circuit board is connected by the wire 290 on the substrate 210 . The second flexible circuit board 250 and the second flexible circuit board 260 are connected to the control circuit board (not shown) by the same connector 270. In this way, the amount of connectors and flexible circuit boards can be reduced to save manufacturing costs.

In summary, the present invention connects the connection lines to the first side of the substrate and the second side of the opposite first side to disperse the wiring of the touch panel. In addition, the present invention further provides a first flexible circuit board and a second flexible circuit board on the first side and the second side of the substrate, respectively, so that the connection lines are respectively connected to the first flexible circuit board and the second flexible circuit board, and the first A flexible circuit board and a second flexible circuit board are electrically connected. In this way, the present invention can effectively utilize the wiring space on the substrate to improve the margin of the structural and electrical design, and can effectively reduce the interference on the substrate, compared with the conventional wiring method of the same side of the substrate to which all the connecting lines are connected. The wiring is excessively dense and causes unintended electrical interference.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100, 200, 200a‧‧‧ touch panels

110‧‧‧Substrate

112, 212‧‧‧ first side

114, 214‧‧‧ second side

120, 220‧‧‧ first electrode line

130, 230‧‧‧ second electrode line

140, 140a, 140b, 240, 240a, 240b‧‧‧ connecting lines

150, 250‧‧‧ first flexible circuit board

160, 260‧‧‧ second flexible circuit board

170, 270‧‧‧ first connector

180, 280‧‧‧ second connector

232‧‧‧electrode pad

190, 290‧‧‧ wires

D1‧‧‧ first direction

D2‧‧‧ second direction

1 is a schematic diagram of a touch panel in accordance with an embodiment of the present invention.

2 is a schematic diagram of a touch panel in accordance with another embodiment of the present invention.

3 is a schematic diagram of a touch panel in accordance with another embodiment of the present invention.

4 is a schematic diagram of a touch panel in accordance with another embodiment of the present invention.

200‧‧‧ touch panel

210‧‧‧Substrate

212‧‧‧ first side

214‧‧‧ second side

220‧‧‧First electrode line

230‧‧‧Second electrode line

240, 240a, 240b‧‧‧ connecting lines

250‧‧‧First flexible circuit board

260‧‧‧Second flexible circuit board

270‧‧‧ first connector

280‧‧‧Second connector

232‧‧‧electrode pad

D1‧‧‧ first direction

D2‧‧‧ second direction

Claims (8)

  1. A touch panel includes: a substrate; a plurality of first electrode lines disposed side by side on the substrate, and extending from a first side of the substrate to an opposite second side in a first direction; The second electrode lines are arranged side by side on the substrate, and respectively extend along a second direction, the first direction intersects the second direction; a plurality of connecting lines are located at a periphery of the substrate and respectively connect the second electrodes a wire, wherein the first portion of the connecting line extends to the first side, and the connecting portions of a second portion extend to the second side; a first flexible circuit board and a second flexible circuit board, respectively The first connecting portion and the second side of the substrate are connected to the first flexible circuit board, and the connecting wires of the second portion are connected to the second soft And a first connector and a second connector are respectively disposed at the ends of the first flexible circuit board and the second flexible circuit board.
  2. The touch panel of claim 1, wherein the materials of the connecting wires comprise metal.
  3. A touch panel includes: a substrate; a plurality of first electrode lines disposed side by side on the substrate, and extending from a first side of the substrate to an opposite second side in a first direction; The second electrode lines are arranged side by side on the substrate and respectively extend along a second direction, the first direction intersecting the second direction; a plurality of connecting lines located at a periphery of the substrate and respectively connecting the second electrode lines, wherein the connecting lines of a first portion extend to the first side, and the connecting lines of a second portion extend to the first a first flexible circuit board and a second flexible circuit board are respectively disposed on the first side and the second side of the substrate, and the connecting lines of the first portion are connected to the first flexible circuit The second connecting portion of the connecting line is connected to the second flexible circuit board; and a connector and a wire disposed on a periphery of the substrate and electrically connected to the first flexible circuit board and the first The second flexible circuit board is disposed at the end of the first flexible circuit board or the second flexible circuit board.
  4. The touch panel of claim 3, wherein the materials of the connecting wires comprise metal.
  5. A touch panel includes: a substrate; a plurality of first electrode lines disposed side by side on the substrate, and extending from a first side of the substrate to an opposite second side in a first direction; An electrode pad is disposed on the substrate; a plurality of connecting wires are respectively connected to the electrode pads, wherein the connecting wires of a first portion extend to the first side, and the connecting wires of a second portion extend to the first Two sides, and each of the connecting lines is electrically connected to the corresponding other connecting lines, so as to connect the corresponding electrode pads in series to form a plurality of second electrode lines, the second electrode lines are arranged side by side on the substrate, and respectively Extending in a second direction, the first direction intersects the second direction; a first flexible circuit board and a second flexible circuit board are respectively disposed on the first side and the second side of the substrate, the first a part of these connecting lines Connecting to the first flexible circuit board, the connecting wires of the second portion are connected to the second flexible circuit board; and a first connector and a second connector are respectively disposed on the first flexible circuit board And the end of the second flexible circuit board.
  6. The touch panel of claim 5, wherein the material of the connecting wires comprises a conductive transparent material.
  7. A touch panel includes: a substrate; a plurality of first electrode lines disposed side by side on the substrate, and extending from a first side of the substrate to an opposite second side in a first direction; An electrode pad is disposed on the substrate; a plurality of connecting wires are respectively connected to the electrode pads, wherein the connecting wires of a first portion extend to the first side, and the connecting wires of a second portion extend to the first Two sides, and each of the connecting lines is electrically connected to the corresponding other connecting lines, so as to connect the corresponding electrode pads in series to form a plurality of second electrode lines, the second electrode lines are arranged side by side on the substrate, and respectively Extending in a second direction, the first direction intersects the second direction; a first flexible circuit board and a second flexible circuit board are respectively disposed on the first side and the second side of the substrate, the first a part of the connecting wires are connected to the first flexible circuit board, the connecting wires of the second portion are connected to the second flexible circuit board; and a connector and a wire, the wire is located on the substrate Peripheral electrical, and electrically connected A flexible circuit board and the second flexible circuit board, the connector provided at the first end of the second flexible circuit board or a flexible circuit board.
  8. The touch panel of claim 7, wherein the material of the connecting wires comprises a conductive transparent material.
TW101136006A 2012-01-05 2012-09-28 Touch panel TWI485605B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US201261583571P true 2012-01-05 2012-01-05

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TWI485605B true TWI485605B (en) 2015-05-21

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI502435B (en) * 2013-08-12 2015-10-01 Himax Tech Ltd Touch control display system and routing layout of a touch panel thereof
CN104142753A (en) * 2013-10-30 2014-11-12 业成光电(深圳)有限公司 The touch device

Citations (2)

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TW201029022A (en) * 2009-01-23 2010-08-01 Transtouch Technology Inc Injection molded touch panel
CN101576670B (en) * 2008-05-09 2011-02-16 群康科技(深圳)有限公司;奇美电子股份有限公司 Touch-control liquid crystal display device

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US5565658A (en) * 1992-07-13 1996-10-15 Cirque Corporation Capacitance-based proximity with interference rejection apparatus and methods
US7948477B2 (en) * 2006-12-15 2011-05-24 Apple Inc. PET-based touchpad
CN101452128B (en) * 2007-12-05 2012-03-14 奇美电子股份有限公司 Touch control display device and electronic device
US8319747B2 (en) * 2008-12-11 2012-11-27 Apple Inc. Single layer touch panel with segmented drive and sense electrodes
US20120032917A1 (en) * 2009-04-28 2012-02-09 Yoshiyuki Yamaguchi Touch panel, touch panel manufacturing method, and electronic apparatus
CN102236454B (en) * 2010-04-28 2013-09-18 瀚宇彩晶股份有限公司 In-cell touch panel module

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101576670B (en) * 2008-05-09 2011-02-16 群康科技(深圳)有限公司;奇美电子股份有限公司 Touch-control liquid crystal display device
TW201029022A (en) * 2009-01-23 2010-08-01 Transtouch Technology Inc Injection molded touch panel

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CN103197789A (en) 2013-07-10
TW201329830A (en) 2013-07-16
CN103197789B (en) 2016-08-03

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