TWI395999B - Touch panel - Google Patents

Description

Touch panel

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

With the advancement of electronic technology and display technology, the current man-machine interface has made a great breakthrough, and is no longer limited to the operation mode using a mouse or a keyboard. At present, the most user-friendly and widely used operation mode is a touch operation, which can achieve the desired function and effect by directly pressing the image displayed on the screen with a finger. This intuitive operation is quite convenient for children or seniors.

The touch interface is generally composed of a display and a touch panel attached thereto. At present, conventional touch panels can be classified into resistive, capacitive, infrared, and surface acoustic wave touch panels. The conventional resistive touch panel comprises two insulating substrates carrying a conductive film and a conductive line, and one of the insulating substrates is further attached with a decorative board. The decorative board is a substrate that is directly contacted by the user during operation, and is loaded with text, graphics, or a combination thereof to enhance the appearance of the display.

However, such a touch panel must have at least three stacked substrates (ie, two insulating substrates and one decorative plate), which makes it difficult to reduce the thickness of the touch panel. In addition, since the conductive film in the conventional touch panel has a requirement of forming a plurality of conductive blocks that are not connected to each other, wet etching or dry etching (such as laser etching) is required, thereby causing the touch panel. The manufacturing cost increases, and wet etching or dry etching easily damages the structure of the substrate.

The present invention provides a touch panel having a reduced number of substrates, which can reduce the overall thickness of the touch panel, reduce manufacturing costs, and improve manufacturing yield and reliability.

A first embodiment of the present invention provides a touch panel including a first insulating substrate, a first insulating layer, a plurality of first conductive lines, a second insulating substrate, and a plurality of second conductive lines. The first insulating substrate has a first insulating base The first conductive film that the board contacts. The first insulating layer covers a portion of the periphery of the first conductive film, and the first conductive film has a first exposed region. The first conductive lines are disposed apart from each other at a periphery of the first conductive film, and each of the first conductive lines includes a first electrode segment and a first extension. The first electrode segment is in contact with the first exposed region to be electrically connected to the first conductive film. The first extension is in contact with the first insulating layer to be isolated from the first conductive film. The second insulating substrate has a second conductive film in contact with the second insulating substrate. These second conductive lines are disposed apart from each other on the periphery of the second conductive film. The second insulating substrate is connected to an external line.

A second embodiment of the present invention provides a touch panel including a first insulating substrate, a first insulating layer, a plurality of first conductive lines, a second insulating substrate, and a plurality of second conductive lines. The first insulating substrate has a first conductive film in contact with the first insulating substrate. The first insulating layer covers a portion of the periphery of the first conductive film, and the first conductive film has a first exposed region. The first conductive lines are disposed apart from each other at a periphery of the first conductive film, and each of the first conductive lines includes a first electrode segment and a first extension. The first electrode segment is in contact with the first exposed region to be electrically connected to the first conductive film. The first extension is in contact with the first insulating layer to be isolated from the first conductive film. The second insulating substrate has a second conductive film in contact with the second insulating substrate. These second conductive lines are disposed apart from each other on the periphery of the second conductive film. The first insulating substrate is connected to an external line.

A third embodiment of the present invention provides a touch panel including a first insulating substrate, a plurality of first conductive lines, a second insulating substrate, and a plurality of second conductive lines. The first insulating substrate has a first conductive film in contact with the first insulating substrate, and the first conductive film has a first region and a plurality of second regions which are disposed apart from each other. The first conductive lines are disposed apart from each other at a periphery of the first conductive film, and each of the first conductive lines includes a first electrode segment and a first extension. The first electrode segment is in contact with the first region and is electrically connected to the first region. The first extension forms contact with one of the second zones. The second insulating substrate has a second conductive film in contact with the second insulating substrate. These second conductive lines are disposed apart from each other on the periphery of the second conductive film. The first insulating substrate is connected to an external line.

According to the touch panel of the present invention, a part of the conductive lines on an insulating substrate is insulated from the conductive film by an insulating layer, thereby reducing manufacturing compared with the conventional method of etching the conductive film into a plurality of mutually non-connected blocks. Cost, avoiding etching process damage to the substrate structure, and improving the manufacturing yield and reliability of the touch panel. In addition, the touch panel according to the present invention is formed by extending a conductive line on an insulating substrate from one corner of the conductive film to another adjacent corner, and by conducting electricity on the other insulating substrate. The circuit is connected to the conductive line on the insulating substrate and then connected to the external line, which can effectively simplify the number and routing of the conductive lines on the other insulating substrate.

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

1A is a cross-sectional view of a touch panel according to a first embodiment of the present invention, and FIG. 1B is an exploded view of two insulating substrates of the touch panel of FIG. 1A, wherein FIG. 1A is a cross-sectional view along line II of FIG. . In order to facilitate the reader's correspondence with the structure on the two insulating substrates, the arrangement order of the upper insulating substrate and the structure thereon shown in FIG. 1B is reversed from the actual situation, and the actual upper and lower configuration order is shown in the figure. 1A.

The touch panel 100 of the present embodiment includes an insulating substrate 110, a conductive film 120, an insulating layer 130, a plurality of conductive lines 140, an insulating substrate 150, a conductive film 160, and a plurality of conductive lines 170. The insulating substrate 110 has a surface 112. In the present embodiment, the insulating substrate 110 is, for example, a decorative sheet carrying a pattern, a character, or a combination thereof. In particular, a printed layer 114 can be disposed on surface 112, and printed layer 114 includes a pattern, text, or a combination thereof. However, in other embodiments, the printed layer 114 may also be disposed on the other opposing surface 116 of the insulating substrate 110. In the present embodiment, the insulating substrate 110 is a flexible transparent substrate, and the material thereof is, for example, polyethylene terephthalate (PET). However, in other embodiments, the material of the insulating substrate 110 may also be other high molecular polymers or insulating materials.

The conductive film 120 is disposed on the first surface 112. In this embodiment, conductive The film 120 directly contacts the decorative sheet (i.e., the insulating substrate 110), such as directly contacting the printed layer 114 of the decorative sheet. The insulating layer 130 covers at least a portion of the periphery of the first conductive film 120 and exposes one exposed region A1 of the conductive film 120. These conductive lines 140 are disposed on the periphery of the conductive film 120 and are disposed apart from each other. Each conductive line 140 includes an electrode segment 142 and an extension segment 144, and the electrode segment 142 and the extension segment 144 are interconnected. The electrode segment 142 is disposed on the exposed area A1 and is in contact with the exposed area A1 to be electrically connected to the conductive film 120. The extension 144 is disposed on the insulating layer 130 and is in contact with the insulating layer 130 to be isolated from the conductive film 120. In other words, the insulating layer 130 isolates the extension 144 from the conductive film 120. In the present embodiment, the insulating layer 130 includes three sub-insulating layers 130a, 130b, 130c. The sub-insulating layers 130a, 130b are located at adjacent edges of the conductive film 120, and the sub-insulating layers 130a, 130c are also located in the conductive film 120. Adjacent two edges. A portion of each of the conductive traces 140 is isolated from the conductive film 120 by the sub-insulating layers 130a, 130b, 130c, and another portion of each of the conductive traces 140 is in contact with the exposed region A1.

The insulating substrate 150 has a surface 152 (as shown in FIG. 1A) in which the surface 112 and the surface 152 face each other. The insulating substrate 150 can be a light transmissive carrier plate, such as a flexible substrate or a rigid substrate. In the present embodiment, the insulating substrate 150 is, for example, a glass substrate. However, in other embodiments, the material of the insulating substrate 150 may also be polycarbonate (PC), polymethylmethacrylate (PMMA), polyethylene terephthalate, and other polymer polymerization. Object or other insulating material. In this embodiment, the insulating substrate 110 is closer to a touch surface of the touch panel 100 than the insulating substrate 150 (the touch surface is the surface 116 in this embodiment), and the touch surface is a finger, a stylus tip or other touching object. The surface that can be touched and pressed. In addition, in the embodiment, the touch panel 100 may have only two insulating substrates, that is, the insulating substrates 110 and 150.

The conductive film 160 is disposed on the surface 152. In the present embodiment, the conductive film 160 is in contact with the insulating substrate 150. These conductive lines 170 are disposed on the periphery of the conductive film 160 and are disposed apart from each other. The insulating substrate 150 is supplied with an external line 320 connections. In the present embodiment, the external line 320 is electrically connected to the extensions 144 and the conductive lines 170. In this embodiment, the external line 320 is, for example, a flexible printed circuit (FPC). However, in other embodiments, the external line 320 can also be other types of line carriers or conductive lines. In this embodiment, the constituent materials of the conductive film 120 and the conductive film 160 include a plurality of anisotropic conductive molecules, and the size of each of the isotropic conductive molecules is not more than 300 nm. At least one of the conductive film 120 and the conductive film 160 includes a carbon nanotube film (CNT film), that is, an anisotropic conductive molecule such as a carbon nanotube. In the present embodiment, the conductive film 120 and the conductive film 160 are, for example, carbon nanotube films. However, in other embodiments, the conductive film 120 and the conductive film 160 may also be indium tin oxide (ITO) or other transparent conductive film. Alternatively, one of the conductive film 120 and the conductive film 160 is a carbon nanotube film, and the other is another light-transmitting conductive film.

In this embodiment, the touch panel 100 further includes an insulating layer 210 covering at least a portion of the periphery of the conductive film 160 and exposing an exposed area A2 of the conductive film 160. Each conductive line 170 includes an electrode segment 172 and at least one extension segment 174 (e.g., extensions 174a and 174b in the Figures). The electrode segment 172 is disposed on the exposed area A2 and is in contact with the exposed area A2 to be electrically connected to the conductive film 160. In the present embodiment, the electrode segment 172 is in direct contact with the conductive film 160. The extension portion 174 is disposed on the insulating layer 210 and is in contact with the insulating layer 210 to be isolated from the conductive film 160. In other words, the insulating layer 210 isolates the extension 174 from the conductive film 160. In the present embodiment, the insulating layer 210 includes two sub-insulating layers 210a and 210b located at opposite edges of the conductive film 160, and a portion of each of the conductive lines 170 (eg, the extended segments 174a and 174b) is disposed on the two sub-insulating layers 210a. And 210b, and another portion of each conductive line 170 (e.g., electrode segment 172) is disposed on exposed area A2.

In this embodiment, the touch panel 100 further includes a plurality of conductive contacts 180 disposed on the insulating layer 210 separately from each other, wherein the conductive contacts 180 are electrically connected to the conductive lines 170, that is, separated from each other. Settings. In addition, the extensions 144 are electrically connected to the conductive contacts 180 by External line 320. In addition, in this embodiment, one end of each extension 174a is provided with a contact 176, and the conductive lines 170 are electrically connected to the external line 320 by the contacts 176, respectively.

The touch panel 100 can further include a plurality of connection lines 190 each having a pair of external ends 192 and an inner end 194. The conductive contacts 180 are respectively disposed on the external terminals 192 , and one ends of the conductive lines 140 are electrically connected to the internal ends 194 . In this embodiment, one end of the extending portion 144 is electrically connected to the inner connecting end 194 by a plurality of conductive adhesives 220 to electrically connect the conductive line 140 to the external circuit 320. In the present embodiment, the connection lines 190 are disposed on the insulating layer 210 to be isolated from the conductive film 160. In other words, the insulating layer 210 isolates the connection lines 190 from the conductive film 160. To simplify the drawing, the conductive paste 220 in FIG. 1B is indicated by a broken line. In this embodiment, the conductive lines 140, 170 and the connecting lines 190 are made of silver or other metal, but in other embodiments, other conductive materials may be used. In addition, in other embodiments, one end of the conductive line 140 can also be directly connected to the external line 320 without being connected through the connection line 190.

When the touch panel 100 is not pressed, the conductive film 120 and the conductive film 160 are spaced apart from each other and electrically insulated. However, when the user touches the surface 116 of the insulating substrate 110 with a finger, the pressed portion of the conductive film 120 contacts the conductive film 160 to make an electrical connection. In the present embodiment, the number of the electrode segments 142 and the electrode segments 172 are each two. The two electrode segments 142 are respectively disposed on two opposite edges of the touch panel 100 , and the two electrode segments 172 are respectively disposed on the other opposite edges of the touch panel 100 . The external line 320 can be connected to a control platform (such as a computer, processor or electronic device control circuit) which can determine the position of the finger touch by analyzing the resistance measured by the electrode segment 142 and the electrode segment 172.

In this embodiment, the insulating substrate 110 and the insulating substrate 150 may be joined by a double-sided tape 360 (as shown in FIG. 1A) or by other glues or adhesives. In this embodiment, the touch panel 100 further includes at least one dummy line 230 disposed on the insulating layer 130. The dummy line 230 and the conductive film 120 are electrically insulated from each other, and have no practical function for the electronic signal. The dummy line 230 can correspond to the conductive The line 170 is disposed such that the surface of the touch panel 100 formed by combining the insulating substrate 110 and the insulating substrate 150 is relatively flat.

In the touch panel 100 of the present embodiment, due to at least one insulating substrate, such as the insulating substrate 110 (or 150), the insulating layer 130 (or 210) is used to extend the extending portion 144 of the conductive line 140 (or 170). (or 174) is isolated from the conductive film 120 (or 160), in place of the conventional technique, in which the conductive film is etched into a plurality of blocks that are not connected to each other. Therefore, the touch panel 100 of the embodiment can reduce the manufacturing cost. The etching process can also be avoided to damage the substrate structure, thereby improving the manufacturing yield and reliability of the touch panel. In addition, the conductive film 120 and the conductive line 140 of the present embodiment are directly formed on the decorative board (ie, the insulating substrate 110), so that the printed layer 114 on the decorative board is not damaged by wet etching or laser etching. . Therefore, the use of the insulating layer 130 in this embodiment can improve the yield of the decorative panel.

Furthermore, in the touch panel 100 of the present embodiment, the insulating substrate 150 is connected to the external line 320, that is, the external line 320 is bonded to the conductive contacts 180 and the contacts 176 on the insulating substrate 150, but not The conductive traces 140 on the insulating substrate 110 are directly connected. Therefore, the external wiring 320 can be combined with the insulating substrate 110 without being subjected to a thermocompression bonding process, so that the process of the thermal pressing can be prevented from injuring the decorative panel.

In addition, since the touch panel 100 of the present embodiment can employ only two insulating substrates 110 and 150, it can have a thin thickness and a low cost.

In addition, when the conductive films 120 and 160 are carbon nanotube films, since they can be formed on the insulating substrates 110 and 150 in a relatively low temperature state or in a state of being cured by ultraviolet light, When the indium tin oxide film is sputtered on the insulating substrates 110 and 150 in a high temperature environment, the carbon nanotube film can ensure the yield and reliability of the decorative board.

2 is an exploded view of two insulating substrates of a touch panel according to a second embodiment of the present invention. Referring to FIG. 2 , the touch panel 100 a of the present embodiment is similar to the touch panel 100 described above, and the difference between the two is as follows. The touch panel 100a of the present embodiment does not use the insulating layer 210 of FIG. 1B. Instead, in the embodiment, the conductive film 160a has a first region 162 that is disposed apart from each other. The second region 164 is plural. The electrode segment 172 of each conductive line 170 is disposed on the first region 162 and is in contact with the first region 162 to be electrically connected to the first region 162. An extension 174 (e.g., extension 174a, 174b) of each conductive trace 170 is disposed over at least one of the second regions 164 and is in contact with at least one of the second regions 164.

In addition, in the present embodiment, the conductive contacts 180 are disposed on the second regions 164 separately from each other, wherein the conductive contacts 180 are electrically connected to the conductive lines 170, that is, separated from each other. The extensions 144 are electrically connected to the external lines (such as the external lines 320 as shown in FIG. 1A) by the conductive contacts 180, respectively. In addition, the connection line 190 is also disposed on the second area 164.

3 is an exploded view of two insulating substrates of a touch panel according to a third embodiment of the present invention, wherein the structure on the lowermost insulating substrate 150 in the middle of the insulating substrate 150 is removed from the insulating layer 250 and The portion is connected to the rear of the line 260, and the portion of the connecting line 260 is located on the insulating layer 250. Referring to FIG. 3, the touch panel 100b of the present embodiment is similar to the touch panel 100 of FIG. 1B, and the difference between the two is as follows. The insulating layer 130 of FIG. 1B is not disposed on the conductive film 120 of the present embodiment, and the entire conductive line 350 serves as an electrode.

These conductive contacts 180 are disposed on the sub insulating layer 210a separately from each other. In addition, in the embodiment, the touch panel 100b further includes a sub-insulating layer 250 disposed on the edge of the conductive film 160 and connecting the sub-insulating layer 210a and the sub-insulating layer 210b. In the present embodiment, the sub-insulating layer 250 covers a portion of the at least one conductive line 170 and covers a portion of each of the two sub-insulating layers 210a, 210b. A portion of at least one connection line (in the present embodiment, the connection line 260 is exemplified) is disposed above the sub-insulating layer 250 and the conductive line 170. The inner terminal 194 of the connection line 260 is located on the insulating layer 250 and above the first sub-insulating layer 210b. The insulating layer 250 isolates the first conductive traces 170 from the connection lines 260, and the insulating layer 210 isolates the connection lines 190, 260 from the conductive film 160. Furthermore, the touch panel 100b of the present embodiment may further include a plurality of dummy contacts 240 disposed on the conductive film 120 and corresponding to the contacts 176 and the conductive contacts 180. To improve the flatness of the touch panel 100b.

4 is an exploded view of two insulating substrates of a touch panel according to a fourth embodiment of the present invention, wherein the structure on the lowermost insulating substrate 150 in the middle of the insulating substrate 150 is removed from the insulating layer 270 and The portion is connected to the rear of the line 280, and the portion of the connecting line 280 is located on the insulating layer 270. Referring to FIG. 4 , the touch panel 100 c of the present embodiment is similar to the touch panel 100 b of FIG. 3 . Specifically, the structure on the insulating substrate 110 of the touch panel 100 c of the present embodiment is on the insulating substrate 110 of FIG. 3 . The structure is the same, but the structure on the insulating substrate 150 of the present embodiment is similar to the structure on the insulating substrate 140 of FIG. The difference between the structure on the insulating substrate 150 of the present embodiment and the structure on the insulating substrate 150 of Fig. 2 will be described below. In this embodiment, the touch panel 100c further includes an insulating layer 270 covering at least a portion of the periphery of the conductive film 160a and covering a portion of the conductive trace 170. At least one connection line (for example, the connection line 280 in this embodiment) is disposed on the insulating layer 270 and extends from a corner of the conductive film 160a to another adjacent corner. The connection line 280 and the electrode segments 172 (the lower electrode segments 172 in the figure) of the conductive lines 170 covered by the insulating layer 270 are disposed on opposite sides of the insulating layer 270, respectively. In the present embodiment, the extending direction of the electrode segment 172 is substantially parallel to the extending direction of the portion of the connecting line 280 above the first region 162. Each of the connecting lines 280 has a pair of external ends 192 and an inner end 194, and the connecting ends 194 are electrically connected to the conductive lines 350, respectively. The external terminal 192 is provided with a conductive contact 180. An external line (such as the external line 320 as shown in FIG. 1A) is electrically connected to the extension 174a and the external terminals 192. Further, at least one other connection line (in the present embodiment, the connection line 190 is exemplified) is disposed on at least one of the second areas 164.

FIG. 5 is an exploded view of two insulating substrates of a touch panel according to a fifth embodiment of the present invention. Referring to FIG. 5, the touch panel 100d of the present embodiment is similar to the touch panel 100b of FIG. 3, and the difference between the two is as follows. The touch panel 100d of the present embodiment does not use the sub-insulating layer 250 of FIG. 3. Instead, the insulating layer 210' of the present embodiment includes a sub-insulating layer 210c, a sub-insulating layer 210d, and A sub-insulating layer 210e. The sub-insulating layer 210c and the sub-insulating layer 210d are disposed on opposite edges of the conductive film 160, respectively. The sub insulating layer 210e is disposed at an edge of the conductive film 160, and connects the sub insulating layer 210c and the sub insulating layer 210d. In the present embodiment, the sub-insulating layer 210e and one of the electrode segments 172 are disposed on the same side of the insulating substrate 150. Further, in the present embodiment, the extending direction of the sub insulating layer 210e is substantially parallel to the extending direction of all the electrode segments 172. The conductive contacts 180 are disposed on the sub-insulating layer 210c separately from each other, wherein the conductive contacts 180 are separated from the conductive lines 170, and the conductive lines 350 are electrically connected to the external lines by the conductive contacts 180, respectively. The external line 320 is shown in FIG. 1A.

A portion of at least one connection line (such as connection line 290 in this embodiment) is disposed over sub-insulation layer 210e and adjacent to conductive line 172. The inner terminal 194 of the connection line 290 is located on the sub-insulating layer 210d, and the insulating layer 210' isolates the connection line 290 from the conductive film 160.

In the touch panel 100d of the present embodiment, since the connection line 290 on the insulating substrate 150 extends from one corner of the conductive film 160 to the adjacent other corner, and the conductive line 350 on the insulating substrate 110 is connected to the external line. Therefore, the trace and the number of the conductive lines 350 on the insulating substrate 110 can be effectively simplified. When the insulating substrate 110 is a decorative board, the connecting line 290 can simplify the routing of the conductive lines 350 on the insulating substrate 110, so that the entire conductive line 350 is used as an electrode. In this way, the decorative board can be subjected to the process of dry etching or wet etching, thereby improving the yield and reliability of the touch panel 100d.

FIG. 6 is an exploded view of two insulating substrates of a touch panel according to a sixth embodiment of the present invention. Referring to FIG. 6, the touch panel 100e of the present embodiment is similar to the touch panel 100d of FIG. 5, and the difference between the two is as follows. The touch panel 100e of the present embodiment does not use the insulating layer 210' of FIG. 5. Instead, the touch panel 100e of the present embodiment employs a conductive film 160a having a first region 162 and a second plurality disposed apart from each other. Area 164. A plurality of connection lines 190, 310 are disposed over a plurality of these second regions 164. At least one connection line (in the embodiment, the connection line 310 is taken as an example) is formed by a corner of the conductive film 160a Extend to another adjacent corner. In the present embodiment, one of the connection line 310 and the conductive line 170 is disposed on the same side of the insulating substrate 150. Further, in the present embodiment, the extending direction of the partial connection lines 310 is substantially parallel to the extending direction of all the electrode segments 172. Each of the connection lines (such as the connection lines 190 and 310) has a pair of external ends 192 and an inner end 194, and the internal ends 194 are electrically connected to the conductive lines 350, respectively.

FIG. 7 is a cross-sectional view of a touch panel according to a seventh embodiment of the present invention. The touch panel 100f of the present embodiment is similar to the touch panel 100 of FIG. 1A, and the difference between the two is mainly that the external circuit 320 of the embodiment is disposed on the surface 154 of the insulating substrate 150, wherein the surface 154 is opposite to the surface 152. . Specifically, the surface 154 can be configured with a plurality of conductive pads 330 electrically connected to the conductive lines 170 (as shown in FIG. 1B ) and the conductive lines 140 via the plurality of conductive vias 340 . Since the external line 320 is not disposed between the insulating substrate 110 and the insulating substrate 150, the flatness of the touch panel 100f can be further improved.

In summary, in the touch panel of the embodiment of the present invention, since the extension of the conductive line on an insulating substrate is separated from the conductive film by using an insulating layer, the conductive film is etched into each other as compared with the conventional one. The practice of unconnected complex blocks has the advantages of reducing manufacturing costs, avoiding etching process damage to the substrate structure, and improving the manufacturing yield and reliability of the touch panel. In addition, in the touch panel of the embodiment of the present invention, the connection line on an insulating substrate extends from one corner of the conductive film to another adjacent angle, and the other insulating substrate is connected by the connection line of the insulating substrate. The upper conductive line is connected to the external line, so that the conductive line on the other insulating substrate can be effectively simplified.

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.

100, 100a, 100b, 100c, 100d, 100e, 100f‧‧‧ touch panels

110,150‧‧‧Insert substrate

112, 116, 152, 154‧‧‧ surface

114‧‧‧Printing layer

120, 160, 160a‧‧‧ conductive film

130, 210, 210', 270‧‧ insulation

130a, 130b, 130c, 210a, 210b, 210c, 210d, 210e, 250‧‧‧ sub-insulation

140, 170, 350‧‧‧ conductive lines

142, 172‧‧‧electrode segments

Extensions 144, 174, 174a, 174b‧‧

162‧‧‧First District

164‧‧‧Second District

176‧‧‧Contacts

180‧‧‧Electrical contacts

190, 260, 280, 290, 310‧‧‧ connection lines

192‧‧‧External

194‧‧‧Internal end

220‧‧‧ conductive adhesive

230‧‧‧Mute line

240‧‧‧Mute joints

320‧‧‧External lines

330‧‧‧Electrical pads

340‧‧‧ conductive through holes

360‧‧‧double-sided tape

A1, A2‧‧‧ exposed areas

1A is a cross-sectional view of a touch panel according to a first embodiment of the present invention.

FIG. 1B is an exploded view of two insulating substrates of the touch panel of FIG. 1A.

2 is an exploded view of two insulating substrates of a touch panel according to a second embodiment of the present invention.

3 is an exploded view of two insulating substrates of a touch panel according to a third embodiment of the present invention.

4 is an exploded view of two insulating substrates of a touch panel according to a fourth embodiment of the present invention.

FIG. 5 is an exploded view of two insulating substrates of a touch panel according to a fifth embodiment of the present invention.

FIG. 6 is an exploded view of two insulating substrates of a touch panel according to a sixth embodiment of the present invention.

FIG. 7 is a cross-sectional view of a touch panel according to a seventh embodiment of the present invention.

100‧‧‧ touch panel

110,150‧‧‧Insert substrate

120, 160‧‧‧ conductive film

130, 210‧‧‧ insulation

130a, 130b, 130c, 210a, 210b‧‧‧ sub-insulation

140, 170‧‧‧ conductive lines

142, 172‧‧‧electrode segments

Extensions 144, 174, 174a, 174b‧‧

176‧‧‧Contacts

180‧‧‧Electrical contacts

190‧‧‧Connected lines

192‧‧‧External

194‧‧‧Internal end

220‧‧‧ conductive adhesive

230‧‧‧Mute line

A1, A2‧‧‧ exposed areas

Claims (23)

A touch panel includes: a first insulating substrate having a first conductive film in contact with the first insulating substrate; a first insulating layer covering a portion of the periphery of the first conductive film, and The first conductive film has a first exposed area; the plurality of first conductive lines are disposed apart from each other at a periphery of the first conductive film, and each of the first conductive lines includes: a first electrode segment, and the first The exposed region is in contact with the first conductive film; and a first extending portion is in contact with the first insulating layer to be isolated from the first conductive film; a second insulating substrate having a a second conductive film in contact with the second insulating substrate; and a plurality of second conductive lines disposed on the periphery of the second conductive film separately from each other; wherein the first insulating layer includes two sub-insulating layers, and the sub-insulating layers The layer is located at the adjacent two edges of the first conductive film, and a portion of each of the first conductive lines is isolated from the first conductive film by the sub-insulating layers, and another portion of each of the first conductive lines First exposed area To contact; and the second insulating substrate to be connected with an external supply line. The touch panel of claim 1, wherein the first insulating substrate is closer to the contact surface of the touch panel than the second insulating substrate. The touch panel of claim 1, wherein the first insulating substrate is a decorative board carrying a pattern, a letter or a combination thereof. The touch panel as described in claim 1 of the patent application further includes a first a second insulating layer covering a portion of the periphery of the second conductive film, and the second conductive film has a second exposed region, wherein each of the second conductive lines includes: a second electrode segment, and the second The exposed region forms a contact to be electrically connected to the second conductive film; and a second extension portion that is in contact with the second insulating layer to be isolated from the second conductive film. The touch panel of claim 4, further comprising a plurality of conductive contacts disposed on the second insulating layer separately from each other, wherein the conductive contacts are electrically connected to the second conductive lines The first extensions are electrically connected to the external circuit by the conductive contacts, and one end of each of the second extensions is provided with a contact, and the second conductive lines are respectively electrically connected by the contacts Connected to the external line. The touch panel of claim 5, further comprising a plurality of connecting lines, each of the connecting lines having a pair of external ends and an inner connecting end, wherein the conductive contacts are respectively disposed on the external ends, One ends of the first conductive lines are electrically connected to the inner ends. The touch panel of claim 6, wherein the connecting lines are disposed on the second insulating layer to be insulated from the second conductive film. The touch panel of claim 7, wherein one end of the first conductive lines is electrically connected to the inner ends by a conductive adhesive. The touch panel of claim 1, wherein the second conductive film has a first region and a plurality of second regions disposed apart from each other, and each of the second conductive lines comprises: a second electrode a segment that is in contact with the first region to be electrically connected to the first region; and a second extension that is in contact with one of the second regions. The touch panel of claim 9, further comprising a plurality of conductive contacts disposed on the second regions separately from each other, wherein the conductive contacts and the second conductive lines are non-electrical Connecting, the first extensions are electrically connected to the external circuit by the conductive contacts, and one end of each of the second extensions is provided with a contact, and the second conductive lines are respectively connected by the contacts Electrically connected to the external line. The touch panel of claim 10, further comprising a plurality of connecting lines, each of the connecting lines having a pair of external ends and an inner connecting end, wherein the conductive contacts are respectively disposed at the external ends, and the conductive contacts are respectively disposed at the external ends One end of the first extension is electrically connected to the inner ends. A touch panel includes: a first insulating substrate having a first conductive film in contact with the first insulating substrate; a first insulating layer covering a portion of the periphery of the first conductive film, and The first conductive film has a first exposed area; the plurality of first conductive lines are disposed apart from each other at a periphery of the first conductive film, and each of the first conductive lines includes: a first electrode segment, and the first The exposed region is in contact with the first conductive film; and a first extending portion is in contact with the first insulating layer to be isolated from the first conductive film; a second insulating substrate having a a second conductive film in contact with the second insulating substrate; and a plurality of second conductive lines disposed on the periphery of the second conductive film separately from each other; wherein the first insulating substrate is connected to an external line; First The edge layer includes a first sub-insulating layer; a second sub-insulating layer disposed on the opposite edges of the first conductive film and the first sub-insulating layer; and a third sub-insulating layer disposed on the first sub-insulating layer An edge of the conductive film and connecting the first sub-insulating layer and the second sub-insulating layer. The touch panel of claim 12, wherein the second insulating substrate is closer to the contact surface of the touch panel than the first insulating substrate. The touch panel of claim 12, wherein the second insulating substrate is a decorative board carrying a pattern, a letter or a combination thereof. The touch panel of claim 12, further comprising a plurality of conductive contacts disposed on the first sub-insulating layer separately from each other, and the non-electricity between the conductive contacts and the first conductive lines The second conductive lines are electrically connected to the external lines by the conductive contacts. The touch panel of claim 15 further comprising a plurality of connection lines, each of the connection lines having a pair of external ends and an inner end, wherein the conductive contacts are respectively disposed at the external ends, and the conductive contacts are respectively disposed at the external ends One end of the second conductive line is electrically connected to the inner ends. The touch panel of claim 16, wherein a portion of the connecting lines is disposed above the third sub-insulating layer and a plurality of the first conductive lines. The touch panel of claim 16, wherein a portion of the connecting lines is disposed above the third sub-insulating layer and adjacent to the first conductive lines. A touch panel includes: a first insulating substrate having a first conductive film in contact with the first insulating substrate, the first conductive film having a first region and a plurality of second regions disposed apart from each other ; The plurality of first conductive lines are disposed apart from each other at a periphery of the first conductive film, and each of the first conductive lines includes: a first electrode segment that is in contact with the first region and electrically connected to the first region And a first extension segment that is in contact with one of the second regions; a second insulating substrate having a second conductive film in contact with the second insulating substrate; and a plurality of second conductive lines Disposed on the periphery of the second conductive film separately from each other; an insulating layer covering a portion of the periphery of the first conductive film and covering a portion of the first conductive lines; and a plurality of connecting lines, one of the same The connecting line is disposed on the insulating layer and extends from a corner of the first conductive film to another adjacent corner, the connecting line and the first electrode segment of the first conductive line covered by the insulating layer respectively Disposed on the opposite sides of the insulating layer, each of the connecting lines has an external end and an inner end, and the inner ends are electrically connected to the second conductive lines respectively; wherein the first insulating substrate is provided With one outside Line connection. The touch panel of claim 19, wherein the other of the connection lines is disposed on one of the second regions. The touch panel of claim 19, further comprising: a plurality of connection lines disposed on a plurality of the second regions, wherein one of the connection lines is formed by a corner of the first conductive film And extending to the other adjacent corner, the connecting circuit and the first conductive lines are disposed on the same side of the first insulating substrate, each of the connecting lines has an external end and an inner end, and the inscribed ends The terminals are electrically connected to the second conductive lines respectively. A touch panel as described in claim 1, 12 or 19, The external line is a flexible printed circuit board. The touch panel of claim 1, wherein the first conductive film and the second conductive film comprise a carbon nanotube film.