TW201227061A - Method of manufacturing a touch panel and touch panel - Google Patents

Abstract

A touch panel and a method of manufacturing a touch panel including the following steps are provided. A substrate is provided, wherein the substrate has a touch sensing area and a peripheral area surrounding the touch sensing area. A patterned material layer is formed on the substrate. The patterned material layer includes a signal conductive layer located in the touch sensing area and a plurality of electrodes disposed on the peripheral area. A material of the signal conductive layer and that of the electrodes are the same and the signal conductive layer is presented in honeycomb mesh shape. A group of terminals is formed at the periphery of the peripheral area, wherein the group of the terminals is electrically connected to a portion of the electrodes.

Description

201227061

AU1008145 36685twf.d〇c/I VI. Description of the Invention: [Technical Field] The present invention relates to a touch panel and a touch panel manufacturing method, and more particularly to a surface capacitive touch panel and A method of manufacturing a surface capacitive touch panel. [Prior Art] Lu In recent years, various electronic products have been moving toward simple operation, small size, and large-size screen size. In particular, portable electronic products have stricter requirements on volume and screen size. Therefore, many electronic products integrate the touch panel with the display panel to omit the space required for the keyboard or the manipulation of the buttons, thereby expanding the configurable area of the screen. Currently, touch panels can be roughly classified into resistive, capacitive, infrared, and ultrasonic touch panels. Among them, resistive touch panels and capacitive touch panels are the most common products. In general, the touch panel must be mounted on the surface of the electronic product to facilitate touch input and operation by the user, or be combined with the surface of the display panel to provide display touch function. SUMMARY OF THE INVENTION The present invention provides a method for manufacturing a touch panel, which can complete the manufacture of the touch panel by using a photomask to help simplify the manufacturing process. The present invention provides a touch panel having a honeycomb grid-like signal transmission layer to provide uniform signal transmission quality. The invention provides a method for manufacturing a touch panel, and a honeycomb network is produced.

201227061 AU1008145 36685twf.docA Lattice signal conducting layer. The present invention provides a touch panel in which a pattern of a signal conducting layer and a pixel of the display panel are in a specific relationship, so that the touch panel provides a touch sensing function without affecting the display effect of the factory and the panel. The invention provides a method for manufacturing a touch panel. A substrate is provided, wherein the substrate has a touch area and a peripheral area surrounding the touch area. A patterned material layer is formed on the substrate. The patterned material layer includes a signal conductive layer disposed on the touch area and a plurality of electrodes disposed on the peripheral area, wherein the signal conducting layer is the same material as the electrode, and the conductive layer is a honeycomb network Honeycomb mesh. A set of terminals is formed on the side of the peripheral zone, where the terminals are connected to the partial electrodes. The invention further provides a touch panel comprising a substrate, a patterned material layer and a set of terminals. The substrate has a touch area and a peripheral area surrounding the touch area. The patterned material layer is disposed on the touch area and the peripheral area. The patterned material layer includes a signal conducting layer disposed on the touch area and a plurality of electrodes disposed on the peripheral area. The signal, the layer and the material of the electrode are the same 'and the signal conducting layer is in the form of a honeycomb (honeycomb mesh). The light is arranged in a part of the electrode in the peripheral region. /, ^Invented and proposed a method for manufacturing a touch panel. The substrate has a working area and a surrounding turtle of the surrounding contact (four). The conductive layer is disposed on the touch area, and the signal conducting layer is disposed on the touch area. The electrode material layer is formed on the special signal of the signal. The electrode material layer forms a plurality of electrodes on the peripheral region, and the layer of the signal is in the form of a honeycomb (honeycomb mesh);; 4ι1' ^ ^ The ruler is formed at the edge of the peripheral region 201227061

AU1008145 36685twf.doc/I A set of terminals, where the set of terminals is connected to a partial electrode.

The present invention further provides a touch panel, which is adapted to be disposed on a display panel, wherein the display panel has a plurality of arrays of pixels, and each of the pixels has a side length of L1 micrometer. The touch panel includes a substrate, a patterned material layer, and A set of terminals. The substrate has a touch area and a peripheral area surrounding the touch area. The patterned material layer is disposed on the touch area and the peripheral area, wherein the patterned material layer includes a signal c〇nductive layer disposed on the touch area and a plurality of electrodes disposed on the peripheral area, and The signal conducting layer is the same material as the electrode. The set of terminals are disposed at the edge of the peripheral zone, and the electrodes are connected, wherein the signal conducting layer is in the form of a honeycomb grid, and the signal conducting layer has a plurality of regular hexagons having a side length of L 2 micrometers. Open the hole, and L1 and L2 need to satisfy the following relationship: |(10000/F1-F2)| $200 μm, where F1=1/u and F2 = (l/V5z2). Based on the above, the signal-conducting layer of the present invention has a honeycomb grid-like pattern of ''transmission quality'. In addition, the electrodes in the occupational conduction layer and the peripheral region can be fabricated by the same-channel micro-weaving process, and thus the touch panel of the embodiment has the characteristics of simple process steps. Step-by-step, the configuration of the honeycomb layer and the pixel can be displayed in a specific way. ^ If the touch display panel is equipped with touch sensing function, More ideal display quality. The above described features and advantages of the present invention will become more apparent from the following description. [Embodiment]

201227061 AU1008145 36685twf.doc/I FIG. 1A to FIG. 1C illustrate a method of manufacturing a touch panel according to an embodiment of the present invention. Referring first to FIG. 1A, a substrate 110 is provided, wherein the substrate 11 has a touch area 112 and a peripheral area 114 surrounding the touch area 112. In this embodiment, the material of the substrate 110 may be a transparent material such as glass or plastic. In addition, the substrate 100 may be a cover plate or a cover glass for covering the outside of the electronic device. Next, the patterned material layer 120 is formed on the substrate 11A with reference to Fig. 1B'. The patterned material layer 120 includes a q-signal conductive layer 122 disposed on the touch area I and a plurality of electrodes 124 disposed on the peripheral region 114. In the present embodiment, the material of the signal conducting layer 122 and the electrode 124 is, for example, the same, and the signal conducting layer 12 = is in the form of a honeycomb mesh. Further, the electrode 124 is not limited to a specific shape. The shape of the electrode 124 may be an L-shape, an N-shape, a z-shape, a lightning bolt, an I-shape, a line segment shape, a triangle shape, a quadrangle shape, a polygon shape, a combination of shapes, etc. and the electrodes 124 may be independent of each other. Specifically, the method of forming the patterned material layer 12〇 can be formed on the entire surface of the two-G-conductive material layer (not _, and the material layer (not shown) is patterned to form a shape. Dan: The material system is 120. That is to say, the actual _ can bribe ❹ == simultaneously form the signal conducting layer 122 and the electrode to, 4

The material (4) turns the conductive material when it is 12°, but cuts the I. In this embodiment, the electrode 124 is made by the lithography process, so that the electrode is made in the manner of the net printing clothes 1 卞 to the bottom ρ. 124, 201227061 of this embodiment

AU1008145 36685twf.doc/I The electrode m can have a finer pattern. That is, the line width of the electrodes is not limited to the accuracy of the screen printing process, but may be selectively less than 3 μm or less. Therefore, the reduced line width of the electrode 124 helps to reduce the width of the peripheral region 'us4, thereby achieving a narrow side width design. In addition, since the signal conducting layer 122 and the electrode 124 are fabricated by the same lithography process, the signal conducting layer 122 and the electrode 124 can have similar condition transmission quality. Compared with the prior art in which the signal conducting layer 122 and the electrode 124 are formed by using different processes, the embodiment can ensure that the signal conducting layer 122 and the electrode 124 are electrically connected together. Since only the ruthenium button engraving process is employed, this embodiment can also effectively shorten the time required for the process. Accordingly, a set of terminals 130 is formed at the edge of the peripheral region 114 to form a touch panel 1A with reference to FIG. 1C', wherein the terminal 13A is connected to the partial electrode 124. Specifically, the terminal 13A can be connected to a plurality of transmission lines 140 extending to the edge of the substrate to be engaged with a driving circuit (not shown) or a driving wafer (not shown). In addition, the terminal 130 may be a triangular conductive pattern φ, an L-shaped conductive pattern, etc., and the material of the terminal 130 may be selectively the same as the material of the sfl conductive layer 122 and the electrode 124 or different from the signal conducting layer 122 and The material of the electrode 124. In this embodiment, the signal conducting layer 122 located in the touch area 112 is in the form of a honeycomb grid, so that the transmission quality of the signal conducting layer 122 in each direction is substantially the same, which is helpful in the touch area 112. Provides uniform touch sensing capabilities. Further, the electrode 124 is constituted by, for example, a plurality of conductive patterns separated from each other in this embodiment. These electrodes 124 surround the signal conducting layer 122 and each electrode 124 is individually connected to the signal conducting

201227061 AU1008145 36685twf.doc/I layer 122. The electrodes 124 disposed in the peripheral region 114 may form a uniform impedance distribution around the signal conducting layer 122. When the user touches the touch panel 100, the charge in the signal conducting layer 122 is redistributed due to the capacitive action generated by the touch action, thereby generating an induced current. At this time, the touch panel 100 can determine the touch position by the induced current received by the terminal 130. In short, the touch panel 100 is a surface capacitive touch panel. 2A to 2D illustrate a method of fabricating a touch panel according to another embodiment of the present invention. Referring first to Fig. 2A, the manufacturing method of this embodiment is, for example, first providing a substrate 110. As in the previous embodiment, the substrate 110 has a touch area 112 and a peripheral area 114 surrounding the touch area 112. Referring to FIG. 2B, the manufacturing method of the present embodiment is, for example, forming a signal conducting layer 220 on the substrate 110, and the signal conducting layer 220 is disposed on the touch area 112, wherein the signal conducting layer 22 is in a honeycomb grid shape. . In this embodiment, the method for manufacturing the signal conducting layer 220 is, for example, first forming a transparent conductive material layer (not shown) on the substrate 11 ,, and then performing a first pass lithography process to form a transparent conductive material layer (not drawn). Shown that the signal-conducting layer patterned into a nest grid is fine. It is worth mentioning that the signal conducting layer 220 of the present embodiment is made of a transparent material, but not by this. s ^

Subtracting, H _, (4) forming a layer (not shown) on the lining layer 22 () and using a second micro J (not shown) to form a plurality of electrograms on the quaternary m 2 = In the present example, the material of the electrode material layer (not shown in green) is, for example, that 'the actual __ not _ conductive (four) separately produced the message

201227061 AU1008145 36685twf.doc/I conductive layer 220 and electrode 230' and in the present embodiment, for example, a total of two photolithography etching processes are performed to separately form the signal conducting layer 220 and the electrode 23A. Thereafter, please refer to FIG. 2D' to form the group terminal 240 at the edge of the peripheral region 114 to complete the touch panel 200, wherein the group of terminals 24 is connected to the partial electrode 230. In addition, the terminal 240 is connected to a driving chip (not shown) or a driving circuit (not shown)/disk, for example, by the plurality of transmission lines ο. The signal transmission layer 220 is a honeycomb grid. The electrode 23A is composed of a plurality of independent curved patterns, that is, the electrodes 23〇 may not be connected to each other. Further, the electrode 23 is surrounded by the periphery of the signal transmission layer 220. Therefore, the touch The panel 2 is a surface capacitive touch panel. In this embodiment, the signal conducting layer 22 is made of a transparent conductive material, so that the user does not easily have a honeycomb pattern when using the touch panel 2 There is a touch surface that has an ideal light transmittance. Figure 2E shows a touch panel according to another embodiment of the present invention. The signal transmission layer is 槿 ΐ the electrode 230 is fortunately composed of a plurality of independent curved patterns, that the electrodes (four) may not be connected to each other at the second, 230 around the periphery of the signal transmission layer 22 (), The middle parallel portion 2^1: the solid flat portion 232 And a plurality of connecting portions 234, wherein the connecting portion 23° is qualitatively parallel to the adjacent touch positive 112 edge, and the connecting port P 234 is connected between the adjacent two flat and signal conducting layers 22G and the gate 232; The parallel portion 232 is made of a cosmetic device. That is, the number of the electrodes 230 of the present invention and the range of "if" can be changed as needed, and the present invention is not limited thereto. Material, lose the state slightly

201227061 AU1008145 36685twf.doc/I The transmission line 250 is connected to the electrode 230 located at the corner. That is, the 'terminals (such as the terminal 130 in Fig. 1C or the terminal 240 in Fig. 2D) of the present invention are selectively configurable in the touch panel. FIG. 3 illustrates a touch display panel according to an embodiment of the invention. Referring to FIG. 3, the touch display panel 300 includes a touch panel 310 and a display panel 320'. The touch panel 310 is disposed on the display panel 320. The touch panel 310 can be the touch panel 10 or the touch panel 200' of the foregoing embodiment, that is, the touch panel 310 has a honeycomb grid-like signal conducting layer 312. In addition, the display panel 320 has, for example, a plurality of cells 322 arranged in an array. In this embodiment, the arrangement of the halogen elements 322 is regular and the pattern of the signal conducting layer 312 has a certain regularity. When the two regular patterns are stacked together, it is easy to generate moiré (moir6). It is not conducive to the display effect of the touch display panel 300. Therefore, the present embodiment proposes a configuration such that the moiré generated by the overlap of the signal conducting layer 312 and the pixel 322 is not viewed by the user. 4 is a top plan view showing a signal conducting layer and a pixel stacked together according to an embodiment of the invention. Referring to FIG. 3 and FIG. 4 simultaneously, in the embodiment, the side length L322 of each of the halogen elements 322 is, for example, L1 micrometer, and the signal conducting layer 312 has, for example, a plurality of regular hexagonal openings 312A having a side length L312 of L2 micrometers. . In general, the alizarin 322 and the signal conducting layer 312 overlap to form a moiré, but the spatial frequency of the moiré is less than 200 microns, which is undetectable to the human eye. Therefore, in the present embodiment, L1 and L2, for example, satisfy the following relationship: |(10000/F1-F2)| S200 μm, where F1=1/L1, and 201227061

AU1008145 36685twf.doc/I As such, the spatial frequency of the moiré generated by the overlap of the signal conducting layer 312 and the halogen 322 will be less than the frequency perceived by the human eye. Therefore, when the user uses the touch display panel 300, the moiré is not perceived, and a display screen of an ideal quality can be seen. In an embodiment, L1 may be between 30 and 50, but the invention is not limited thereto. Specifically, the size of L1 can be set depending on the resolution required for the display panel 320. In addition, the signal conducting layer 312

The increase in the line width W helps to increase the signal transmission capability of the signal transmission layer 312. However, it is easy for the user to observe the honeycomb pattern exhibited by the signal transmission layer 312. Therefore, the designer can adjust the line width W of the signal conducting layer 312 as needed. For example, the line width w of the signal conducting layer 312 can be 4 microns or other range. In summary, the present invention sets the signal conducting layer to be a honeycomb grid, so that the signal conducting layer can provide uniform signal transmission quality. In addition, the electrodes of the signal-conducting layer edge region can be made of the same material, and when it is made of: f, the honeycomb-shaped signal-conducting layer can still have two light transmittances. For this reason, the honeycomb grid-like signal: display =; = as for the display panel display effect, the negative effect can be negatively affected by the grid-like signal conduction layer and the display panel. 1 relationship to reduce the presence of moire (m. (four) phenomenon on the display of the spirit and the lead of the invention has the usual knowledge, without leaving the protection of the invention: Wai, when you can make some changes and retouch, so this is only a guide This is subject to the definition of the scope of the patent application.

201227061 AU1008145 36685twf.doc/I [Simplified Schematic Description] FIG. 1A to FIG. 1C illustrate a method of fabricating a touch panel according to an embodiment of the present invention. 2A to 2D illustrate a method of manufacturing a touch panel according to another embodiment of the present invention. 2E缯′′ illustrates a touch panel according to still another embodiment of the present invention. FIG. 3 illustrates a touch display panel according to an embodiment of the invention. 4 is a top plan view showing a signal conducting layer and a pixel stacked together according to an embodiment of the invention. [Main component symbol description] 100, 200, 200, 310: touch panel 110 substrate 112 touch area 114 peripheral area 120 patterned material layer 122, 220, 312: signal conducting layer 124, 230: electrodes 130, 240: Terminals 140, 250: transmission line 232 = parallel portion 234: connection portion 300: touch display panel 320: display panel 12 201227061

AU1008145 36685twf.doc/I 312A : Regular hexagonal opening 322 : Alizarin L312, L322 · Side length W : Line width

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Claims (1)

201227061 AU1UU8I45 36685twf.doc/I VII. Patent Application Range: 1 · A touch panel manufacturing method includes *3 τ**> · providing a substrate having a touch area and a surrounding touch area a patterned material layer is formed on the substrate, and the patterned material layer includes a signal conductive hyer disposed on the sinuous touch region and a plurality of electrodes disposed on the peripheral region. The signal conducting layer is made of the same material as the electrodes, and the signal conducting layer is in the form of a honeycomb combo; and a set of terminals is formed at an edge of the peripheral region, wherein the set of terminals is connected to a portion of the electrodes. 2. The method of manufacturing a touch panel according to claim 1, wherein the method of forming the patterned material layer comprises forming a comprehensive material layer on the substrate; and etching a process pattern by using a lithography process The layer of material is formed to form the layer of material. The manufacturer of the touch panel described in the first paragraph of the patent field of the Qing Dynasty / : The material of the material layer includes a transparent conductive material. The material of the patterned material layer includes a metal in the method of manufacturing the touch panel according to the first aspect of the invention. A touch panel comprising: a region; a substrate having a touch area and a side layer surrounding the touch area; the material layer ' disposed on the touch area and the periphery The patterned material layer includes: a signal transmitted on the touch area, a relay signal 201227061 AU1008145 36685twf.doc/I (signal conductive layer), and a plurality of electrodes disposed on the peripheral area are the same as the material of the germanium electrode And the signal conduction is increased to a honeycomb combo (honeyComb mesh); and, the - group terminal is disposed at the edge of the peripheral area, and with some of the 6. such as the full-time @第5 item The material of the patterned material layer comprises a transparent conductive material. For example, the touch panel of the above-mentioned item (4), wherein the material of the patterned material layer comprises metal. 8. A method of manufacturing a touch panel, comprising: & for a substrate having a peripheral region of a region; a touch region and a surrounding control layer formed on the Wei plate; The signal conducting layer is disposed on the two touch areas, and the electrode layer is formed on the signal conducting layer; the electrode material layer is patterned by a lithography etching process Forming a plurality of electrodes on the peripheral region; and forming a set of terminals at an edge of the peripheral region of the periphery, wherein the set of terminals is connected to a portion of the electrodes. 9. The manufacturer of the touch panel of claim 8, wherein the material of the signal conducting layer comprises a transparent conductive material. 10. The manufacturer of the touch panel of claim 8, wherein the materials of the electrodes comprise metal. 11. A touch panel adapted to be disposed on a display panel, the display 15 201227061 AU1008145 36685twf.doc/I panel having a plurality of arrays of pixels, each of the sides having a length of LI micron, and the touch The control panel includes: a substrate having a touch area and a peripheral area surrounding the touch area, a patterned material layer disposed on the touch area and the peripheral area, the patterned material layer including a a signal conductive layer on the touch area and a plurality of electrodes disposed on the peripheral area, the signal conducting layer is the same material as the electrodes; and the group % is disposed in the surrounding area of the sea An edge, and connected to a portion of the electrodes, wherein the signal conducting layer has a honeycomb grid shape, and the signal conducting layer has a plurality of regular hexagonal openings having a side length of L2 micrometers 'And L1 and L2 need to satisfy the following relationship: |(10000/F1-F2)| $200 microns, where Fi=ni and F2 = (i/V^Z2). 12. The touch panel of claim 11, wherein the material of the patterned material layer comprises a transparent conductive material. ~ 13. The material of the touch-faced bean patterned material layer according to claim 11 of the patent application includes metal. /, L1, 14, wherein the touch panel of claim 11 is between 30 and 50. ”