TW201020893A - Capacitive touch panel and the manufacturing method thereof - Google Patents

Capacitive touch panel and the manufacturing method thereof Download PDF

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Publication number
TW201020893A
TW201020893A TW97145829A TW97145829A TW201020893A TW 201020893 A TW201020893 A TW 201020893A TW 97145829 A TW97145829 A TW 97145829A TW 97145829 A TW97145829 A TW 97145829A TW 201020893 A TW201020893 A TW 201020893A
Authority
TW
Taiwan
Prior art keywords
plurality
capacitive touch
touch panel
electrodes
insulating layer
Prior art date
Application number
TW97145829A
Other languages
Chinese (zh)
Inventor
Chien-Chung Kuo
Original Assignee
Swenc Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Swenc Technology Co Ltd filed Critical Swenc Technology Co Ltd
Priority to TW97145829A priority Critical patent/TW201020893A/en
Publication of TW201020893A publication Critical patent/TW201020893A/en

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Abstract

The present invention provides a capacitive touch panel and the manufacturing method thereof. The method includes steps of forming a plurality of connecting segments and a color mask simultaneously on a substrate; forming an insulating layer on the abovementioned structure layers; forming a plurality of channels within the insulating layer; forming a plurality of electrodes and a plurality of bridging segments on the insulating layer; and forming a protecting layer to cover all the abovementioned structure layers. The manufacturing method can achieve the goals of reducing the manufacturing processes and decreasing the manufacturing cost.

Description

201020893 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a capacitive touch panel and a method of manufacturing the same, and more particularly to a projected capacitive touch panel and a method of fabricating the same. [Prior Art] The development of the capacitive touch panel is basically to improve the resistance of the resistive touch panel. Due to the presence of a purification layer such as glass on the surface of the threat, it is attached to the touch panel to protect the transparent conductive film design and extend the life of the product. The technology of light-touch touch-type brewing has become the most widely used type in the industry due to the expiration of the exclusive patent of 3M. The principle of the capacitive touch panel is that the paste body acts as a conductor grounding. When the static electricity on the finger contacts the uniform electric field of the transparent conductive film on the panel, the current flows due to the induction of positive and negative electricity, and the current flows. The change in value is entered and the contact position is calculated. As shown in the first figure, this is a conventional capacitive touch panel. A lower surface of a substrate 11 is coated with a transparent conductive film 12, such as indium tin oxide (Indium Tin Oxide ' ΓΓΟ), followed by The surface is coated with an insulating layer 13 on the transparent conductive film 12, and the lower surface is covered with a protective layer 14 to cover the transparent conductive film 12, and then protected by a decorative layer 17 by optically transparent adhesive (OCA). The Cover Lens 16 is adhered to the insulating layer to cover all of the above structural layers, so that the user can touch the panel with a finger without damaging the product. However, in the prior art, the capacitive touch panel and the protective screen respectively have a substrate, which leads to the combination of the entire group 201020893, which is thicker and lighter than the electronic product towel. The need to quantify is inconvenient for the user. At the same time, in the process, the number of steps is too high, resulting in excessive manufacturing costs, which is not conducive to market competition. For the sake of his position, the applicant has the lack of knowledge in the know-how. After careful testing and research, and the spirit of perseverance, he finally conceived the case of "capacitive touch panel and its manufacturing materials". Above _, the following is a brief description of the case. The main purpose of the present invention is to provide a capacitive touch panel and a method of manufacturing the same. By improving the conventional technology, the shortcomings of the overall structure suggest that the thickness of the product is too thick. Therefore, a capacitive touch panel of a single substrate is proposed, and the capacitive touch panel and the protective screen are integrated through an integrated design. In order to achieve a lightweight and thinner design, the manufacturing method of the capacitive touch panel has the advantages of simplifying the process and reducing the manufacturing cost compared with the complicated steps in the original process. According to the concept of the present invention, a capacitive touch panel includes a 概H 娜 接 接 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , And a plurality of electrodes, the plurality of poles of the poles are connected to the plurality of overlapping lines in the first axial direction and electrically connected to the lamp, and the electrodes not connected to the antenna (10) are The two axial directions are t-connected by a plurality of bridging segments, and the plurality of bridging segments are located on the insulating layer. Preferably, the capacitive touch panel of the present invention, wherein the plurality of electrodes are diamond shaped. Preferably, the capacitive hard panel of the present invention is wherein the plurality of 201020893 electrodes are disposed on the substrate. Preferably, the capacitor _ electrodes of the present invention are disposed on the ship's edge layer. Preferably, the plurality of touch panels further comprise a protective layer, and the capacitor is preferably coated. The capacitive touch proposed by the present invention: two installed wirings==嶋The capacitive touch panel proposed by the plurality of layers of the _axis is a conductive device, wherein the capacitor is preferably disposed on the decorative layer. Within the area. 2. The complex number = preferably, the capacitive touch panel of the present invention (4), wherein the insulating layer covers the substrate and the intermediate portion of each of the overlapping lines. Preferably, the capacitive touch panel of the present invention is provided. a portion of the capacitor extraction panel that is connected to the plurality of lap lines in the first sleeve and is more than one of the inventions (4), wherein the substrate is made of glass 1 gram force, polycarbonate (four) _ shouting , PQ and Poly Ethylene Terephthalate (PET) among them. Preferably, the capacitive touch panel of the present invention, wherein the insulating layer 201020893 is a transparent non-conductive material. Preferably, the capacitive touch panel of the present invention, wherein the plurality of electrodes are selected from the group consisting of indium tin oxide (IT), antimony tin Oxide (及), and zinc oxide. Preferably, the capacitive touch panel of the present invention is characterized in that the protective layer is selected from the group consisting of oxidized stone (Si〇x) and nitriding ( a method of manufacturing a capacitive touch panel according to the present invention, the method comprising the steps of: (8) providing a substrate; forming a decorative layer and a plurality of overlapping circuit board substrates; e) forming-insulating the tying contact with the portion of the plurality of overlapping lines; and (9) forming a plurality of _, wherein the portion of the plurality of electrodes is connected to the plurality of overlapping lines and electrically connected in the first axial direction The electrode of the sexual connection 'the towel' is not connected to the plurality of electrodes in the second axial direction by the complex segment, and the plurality of bridge segments are located on the insulating layer. Preferably, the hair tear is proposed. The manufacturing method of the capacitive hard panel, wherein the step (C) is more And (4) forming the insulating layer on the substrate; and (4) forming a plurality of channels on the end of the thief, and the ray (four) channel is located between the sloping layer on the substrate and the _ insulating layer on the German display line. Preferably, the method of manufacturing the capacitive panel of the present invention, wherein the step (d) further comprises forming the plurality of electrodes on the insulating layer and filling the plurality of channels, a portion of the plurality of electrodes passing through the The plurality of lap lines are electrically connected in the first axial direction. Preferably, the method for manufacturing the capacitive touch panel of the present invention, 201020893 further comprises (e) forming a protective layer on the plurality of [Embodiment] The present invention will be fully understood by the following examples, so that those skilled in the art can do so. However, the implementation of the present invention is not limited to the implementation of the following embodiments. Please refer to the second figure, which is a structural diagram of the first embodiment of the capacitive touch panel proposed in the present invention, which includes a substrate 2 and a plurality of overlapping ❹ 22 ' and a decorative layer (Decorati〇n layer). )twenty three The material of the substrate 21 is one selected from the group consisting of glass, acrylic, polycarbonate (P〇lycarbonate ’ pc) and polythene (Ethylene Terephthalate, PET). The lap line 22 is made of the same material as the decorative layer 23 and is made of a conductive material. When the lap line 22 and the decorative layer 23 are formed on the substrate 21, they may be disposed on the substrate by using, for example, chemical vapor deposition (CVD) or physical vapor deposition (Physical Vapor Deposition). At the same time, the lap line 22 and the decorative layer 23 will be formed in the same process substrate, so the lap line 22 and the decorative layer 23 must have the same conductive material, so that the process steps can be effectively reduced. manufacturing cost. The lap lines 22 will be arranged in an array on the substrate 21, equidistantly spaced apart from each other to allow the electrodes 26 to be disposed therebetween in a subsequent step. The decorative layer is disposed on the edge of the substrate 21, and the overlapping line is located within the magical area of the decorative layer. In addition, since the layer of the present invention is made of a metal material, it can be grounded as a shielded housing to isolate electronic signal interference in the external environment. ^ Refer to the third ® ‘the top part of the capacitive touch panel is covered with a schematic view of the upper-insulating layer 24. The ship's edge layer 24 is thin and transparent. 201020893 is made of electrical material and formed on the substrate 21. Next, please refer to the fourth figure, using the dry line 22 and the decorative layer 23. _ traces and other processes, in the insulation $ engraved (four)) or wet-connected green politicians 7 layer # 24 in the formation of a plurality of channels 25 in the lap === square, and exposed 4 lap line 22, each lap line = Each side, there are two channels 25, the channel insulation layer 24 and the clumps are in the same way, on the line 2 on the substrate 21

The second figure (8) is the top view of the first embodiment of the control panel, and the fifth figure (b) is the Β_Β, = along the fifth figure (8): The schematic diagram 'and the fifth diagram (c) are not intended to follow the section of the Α_Α' line of the fifth diagram (8). A plurality of electrodes 26 are formed on the insulating layer 24 at this time, and each of the electrodes f 26 is arranged at equal intervals in a diamond shape. At this time, part of the electrode 洸 will fill the channel 25, so that the electrode 26 of the portion will be electrically connected in the first axial direction via the lap line 22, and the electrode 26 connected to the lap line 22 is not Vertically in the second axial direction of the first axial direction, the plurality of bridging segments 27 are mixed, and the hybrid segments 27 are formed and covered on the insulating layer 24, and the connecting portion 27 and the electrode 26 are formed. The material will be the same. At this point the bridging section 27 will thus be in a state of perpendicular intersection with the lap line 22 on the projection plane. However, the shape of the electrode 26 is not limited to a diamond shape, and the diamond shape proposed in the present embodiment can be changed according to actual needs, and the distance between the electrodes 26 can be optimized to enhance the generation of signals. Further, the material of the electrode 26 is selected from one of Indium Tin Oxide (ITO), antimony tin Oxide (ITO), and indium Zinc Oxide (IZO). Therefore, such a design would produce a circuit that is perpendicular to each other in two directions, which is a projected capacitive touch panel. Traditionally, the upper and lower surfaces of the glass 201020893 f are formed into a circuit of the χ axial direction and the y axis. Since the trees of the two 2 are recorded as drunk, the intersection at the plane of the nano is a capacitance node. When the finger touches, the different distances of the nodes relative to the finger = the change of the capacitance value, thereby deriving the touch position. In this case, the two-axis circuit design can be completed on a single surface, which can reduce the thickness of the overall structure. The _ layer, the structure of the slanting layer 28 is covered, and the structure of the internal circuit and the nitriding layer 28 is selected from the oxygen cut _ * The second real paste of the nuclear. Part of the structure of the capacitive touch panel proposed in the present invention is a plurality of overlapping lines 32, and a decorative layer 33. Then, the absolute balance of the ^32 rides 33, and the shaft is placed on the middle of the lap line 2, so as to be formed on the insulating layer% and the lap line 32 眺The object L is biaxially oriented, and reference is made to the ninth (8) to ninth (c), and the ninth (8) is the second embodiment of the valley touch panel, and the ninth figure (b) is Along the ninth Ibb, the section of the vertical line shows _, while the ninth _ is a diagram taken along the ninth. (4) Nine It is known that the electrode of the section is above == and is connected to the base via the lap line 32. From the ninth, it can be seen that the unconnected lap line, such as ^=11 201020893, the bridge section 36 is electrically connected in an axial direction perpendicular to the first sleeve to complete a biaxial circuit design. Referring to the tenth figure, it is finally formed that the protective layer 37 covers all of the structural layers ’ described above to complete the capacitive touch panel of the present invention. The first embodiment differs from the second embodiment in that, in the second embodiment, it is not necessary to dispose the insulating layer 34 on the substrate 31 between the lap lines 32, so that the material can be saved to lower the manufacturing wire. Further, it is not necessary to form the channel 25 in the first embodiment in the insulating layer 34, so the manufacturing steps will be more simplified. In summary, the capacitive touch panel and the manufacturing method thereof proposed in the present invention have a single-substrate structural design, so that the product has the convenience of lightness and thinness, and at the same time, the aesthetics and the _. The method of the capacitive touch panel will be able to achieve a simplification of bribes and low manufacturing costs. , applied to the city r = Fan Yiben" please patent two ornaments, should still fall within the scope of the invention patent. (four) and repair 12 201020893 [Simple diagram description] The first == ϋ capacitive touch panel The first part of the electronic control panel of the structural diagram of the embodiment - the partial structure of the embodiment 第五 the fifth - the first part of the structure - the structure of the embodiment Ϊ J It's projection capacitive touch panel _ the first The capacitive touch surface of the embodiment is shown in the figure. Figure 5 (b): A schematic view of the scraping surface of the line along the Β-Β of the fifth figure (a). Figure (c): A cross-sectional view of the line along A_A of the fifth figure (8). ί j ί The capacitive touch panel of the first embodiment of the structure. The second embodiment of the capacitive touch panel of the present invention is the second embodiment of the capacitive touch panel of the present invention. The ninth diagram (8) of the capacitive touch panel of the present invention: the top view of the capacitive touch panel of the second embodiment Figure 9 (b): A cross-sectional view of the line along the Β_Β of the ninth figure (a). Figure 9 (c): along the 第九-Α of the ninth figure (b), the section of the line is shown. Figure 10: The second embodiment of the capacitive touch panel of the present invention structure 12 transparent conductive film Η protective layer 16 protective screen 21 substrate 23 decorative layer 25 channel 27 bridge segment 31 substrate 33 decorative layer 35 electrode 37 protective layer ❹ [mainly Description of component symbols] 11 substrate 13 insulating layer 15 optically transparent plastic decorative layer 22 overlapping circuit 24 insulating layer 26 electrode 28 protective layer 32 overlapping circuit 34 insulating layer 36 bridging segment 13

Claims (1)

  1. 201020893 X. Patent application scope: 1. A capacitive touch panel comprising: a substrate; a plurality of overlapping lines disposed on the substrate; an upper layer; and an insulating layer covering at least the plurality of layers Connected to a plurality of electrodes of the circuit, and a part of the plurality of wires is corrected in the first ^I wiring, wherein
    The electrode, Yu Yu, is placed on the insulation layer by a plurality of bridge sections. (4) A plurality of the capacitive touch panels as described in claim 1, wherein the electrodes are in the shape of a wheat. 3. The capacitive touch panel of claim 1 or 2, wherein the plurality of electrodes are disposed on the substrate. 4. The capacitive touch panel of claim 1 or 2, wherein the plurality of electrodes are disposed on the insulating layer. 5. The capacitive touch panel of claim 1, further comprising a protective layer overlying the plurality of electrodes. 6. The capacitive touch panel of claim 1, further comprising a decorative layer 'se» disposed on an edge of the substrate, and the material of the decorative layer is the same as the material of the plurality of overlapping lines . 7. The capacitive touch panel of claim 6, wherein the decorative layer is made of a conductive material. 8. The application of the patent is described in detail in the sixth section of the capacitor control panel. The plurality of overlapping lines are disposed within the area of the decorative layer. 201020893 Several connections between the power lines. The capacitive touch panel of the fourth embodiment of the present invention, wherein the plurality of portions of the capacitor are covered on the insulating layer and fill the plurality of channels. The portion of the reticular 2 electrode is electrically connected to the plurality of overlapping lines in the first axial direction. 12. If you apply for a patent scope! The capacitive touch panel of the present invention, wherein the material of the substrate is one selected from the group consisting of glass, acrylic, pGlyearbGnate (pc) and Poly Ethylene Terephthalate (PET). 13. If you apply for a patent scope! The capacitive touch panel of the present invention, wherein the insulating layer is a transparent non-conductive material. The capacitive touch panel of claim 1, wherein the plurality of electrodes are selected from the group consisting of Indium Tin Oxide (ITO), antimony tin oxide (Antimony Tin Oxide ' ΑΤΟ), and oxidized tin ( One of Indium Zinc Oxide, IZO). 15. The capacitive touch panel of claim 1, wherein the protective layer is selected from the group consisting of yttrium oxide (Si〇x) and tantalum nitride (SiNx). 16. A method of fabricating a capacitive touch panel, the method comprising: (a) providing a substrate; (b) simultaneously forming a decorative layer and a plurality of overlapping lines on the substrate; (c) forming an insulating layer Forming a plurality of electrodes on the decorative layer and a portion of the plurality of overlapping lines; and 15 201020893 (d), wherein a portion of the plurality of electrodes are connected to the plurality of overlapping lines for electrical connection in the first axial direction The electrode that is not connected to the plurality of overlapping lines is electrically connected to the plurality of bridging segments in the second axial direction, and the plurality of bridging segments are located on the insulating layer. The method of claim 16, wherein the step (c) further comprises: (cl) forming the insulating layer on the substrate; and (c2) forming a plurality of channels on the plurality of overlapping lines At the end, the plurality of channels are located between the insulating layer on the substrate and the insulating layer on the strap. 18. The method of claim 17, wherein the step (9) further comprises: forming the plurality of electrodes on the insulating layer and filling the plurality of channels - the portion of the plurality of electrodes is connected to the plurality of electrodes The electrical connection is made in the first axial direction. 19. The method of claim 18, further comprising: (e) forming a protective layer on the plurality of electrodes.
TW97145829A 2008-11-26 2008-11-26 Capacitive touch panel and the manufacturing method thereof TW201020893A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8450628B2 (en) 2011-02-01 2013-05-28 Industrial Technology Research Institute Projective capacitive touch sensor structure and fabricating method thereof
TWI410840B (en) * 2010-08-25 2013-10-01 Au Optronics Corp Touch panel and fabricating method of the same
TWI417603B (en) * 2010-09-24 2013-12-01 Au Optronics Corp Method for fabricating touch panel
CN103631428A (en) * 2012-08-23 2014-03-12 恒颢科技股份有限公司 Touch electrode device and a method of manufacturing the same
TWI450022B (en) * 2011-05-20 2014-08-21 Wintek Corp Cover glass structure and fabrication method thereof and touch-sensitive display device
US9052789B2 (en) 2012-11-08 2015-06-09 Industrial Technology Research Institute Touch structure and manufacturing method for the same
US9678607B2 (en) 2012-01-06 2017-06-13 Tpk Touch Solutions (Xiamen) Inc. Touch panel and a manufacturing method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI410840B (en) * 2010-08-25 2013-10-01 Au Optronics Corp Touch panel and fabricating method of the same
TWI417603B (en) * 2010-09-24 2013-12-01 Au Optronics Corp Method for fabricating touch panel
US8450628B2 (en) 2011-02-01 2013-05-28 Industrial Technology Research Institute Projective capacitive touch sensor structure and fabricating method thereof
TWI450022B (en) * 2011-05-20 2014-08-21 Wintek Corp Cover glass structure and fabrication method thereof and touch-sensitive display device
US9678607B2 (en) 2012-01-06 2017-06-13 Tpk Touch Solutions (Xiamen) Inc. Touch panel and a manufacturing method thereof
CN103631428A (en) * 2012-08-23 2014-03-12 恒颢科技股份有限公司 Touch electrode device and a method of manufacturing the same
US9052789B2 (en) 2012-11-08 2015-06-09 Industrial Technology Research Institute Touch structure and manufacturing method for the same

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