TWI285334B - Wiring structure of touch panel - Google Patents

Abstract

This invention relates to a wiring structure for a touch panel. A plurality of electrical control circuits are disposed between the edge of transparent conductive layer on a glass substrate and the frame of transparent active area. Plural conductive wire terminals are disposed on the same side of the glass substrate, each wire terminal is connected respectively to an electrical control circuit. At the wire terminal, a flexible PCB is disposed. The flexible PCB is equipped with plural conductive leads that connects respectively with a wire terminal. By replacing conventional wiring structure with the flexible PCB, the wiring area is effectively reduced, and the goal of narrowing touch panel wiring is achieved.

Description

1285334 V. INSTRUCTION DESCRIPTION α) [Technical Field of the Invention] The present invention relates to a touch panel, and more particularly to a wire using a flexible circuit board instead of a glass substrate, or a wire is transferred to the back surface of the glass substrate to achieve The purpose of narrowing the wiring of the touch panel. [Prior Art] In recent years, touch-sensitive human-machine interfaces, such as touch panels, have been widely used in a wide variety of electronic products, such as: Global Positioning System (GPS), personal Digital assistants (pDA), cell phone (celluUr phone) and palm-sized computers (Hand-held pc) to replace traditional input devices (such as keyboards and mice), this design has changed dramatically 'not only The human-machine interface affinity of the electronic devices has been improved, and the traditional input device has been omitted, thereby freeing up more space for installing a large display panel to facilitate the user's information. Generally speaking, the traditional resistive touch panel has different wiring patterns according to different wiring lines of its electronic control circuit. 'X can be divided into wires, five wires or six wires. For example, as shown in the figure, the transparent conductive glass substrate of the touch panel (such as: IT〇GUss) has four electronic control lines in the ^ and Y-axis directions, and a transparent conductive film (such as: IT0 ilm, In the figure, it is used to detect (sampl ing) the voltage values of the X and γ axes. The electronic control circuit 'a total of 5 electronic control lines are provided in the touch panel = to the transparent action area" The position of the border. When the user touches the touch panel with a finger or a pen (assuming that the position of the touch p is touched), a control circuit of the circuit board of the touch panel will be the transparent conductive glass substrate.

1285334

The power supply line 10 is supplied with a 5 volt power supply at both ends, and the other electronic control circuit 16 is grounded (ground, that is, the voltage at both ends is equal to zero). At this time, the touch position P changes due to the impedance. A voltage drop will be generated so that the electronic control line on the transparent conductive film can sample the voltage γ in the γ-axis, and the control circuit supplies a power supply of 5 volts to the two electronic control lines 14 of the transparent conductive glass substrate, and When the other electronic control circuit 丨2 is in a grounded state (ground, that is, the voltage at both ends is equal to zero), the electronic control circuit on the transparent conductive film will sample the voltage value of the x-axis Vpx, and the voltage value of the νρχ After the calculation is compared by the control circuit, the position of the touched coordinate P can be quickly known. Moreover, the electronic control circuits 1 〇, 丨 2, 14 and 16 are respectively connected to one end through a wire 20, 22, 24 and 26, and the other end is along the transparent conductive glass substrate 1 and transparent. The edge of the conductive film extends to the same side of the transparent conductive glass substrate 1 and the transparent conductive film, and then extends to the central position of the side, and each of the wires 2, 22, 24 and 26 The terminals are respectively connected to one end of a flexible circuit board (not shown), and the other end of the flexible circuit board extends outside the edge of the transparent conductive glass substrate 1 and the transparent conductive film and is connected to the touch panel. On one of the control circuits of the circuit board, in other words, the wires 20, 22, 24 and 26 of the touch panel and the wiring areas of the electronic control lines 10, 12, 14 and 16 are interposed on the touch surface. With the position of the border of the transparent action section. Due to the continuous improvement of the manufacturing technology of the liquid crystal panel and the demand of the large window, the frame design of the liquid crystal panel is narrower and narrower, so that the width of the border of the touch panel is changed according to the frame design of the liquid crystal panel, and the guide is changed.

1285334 V. Invention Description (3) Not only directly test the touch surface, therefore, there are currently wiring problems: 'only its resistance is increased, point 'again, line width refinement overlap' to reduce wiring, but its The transparent conductive glass control circuit short-circuit risk increases the working procedure and the work to reduce the wiring area, the transparent conductive glass substrate formed by the conductive film, and the production cost. In the design of the touch panel between the narrow frames, the wiring area of the && t ^ line is sharply reduced, and even the design barriers are formed in the following ways to solve the narrow frame. 1. Line width is refined to reduce wiring area: ^ a A The signal attenuation is susceptible to interference, which makes the processing difficulty increase and the yield decreases. 2. Overlap lines (such as wire and electronic control circuit area (such as: Republic of China patent) No. 544824) The method of overlapping the lines on the substrate makes the wire and electricity high, the processing difficulty increases, the yield decreases, and the production time increases, and the production cost increases. 3 · Transfer part of the wire to the transparent conductive film, but the transparent conductive film does not High temperature resistance, and in the transmission line, its adhesion and durability are not as good as processing, there will be increased work procedures and working hours, improve the data, how to develop a better structure, set up electronic control lines and wires, that is It has become an important issue for all manufacturers today. ··【Contents of the invention】 In view of the above various methods of narrow frame, the manufacture of many missing plates has occurred. And technology for the law, the benefits through continuous research, laid the experimental and control between the electric lines and wires, the inventor Corneille said it in the absence of careful touch surface to study various solutions to improve after finally worked out this

1285334 V. Invention Description (4) A wiring structure of a touch panel of the invention. An object of the present invention is to provide a wiring structure of a touch panel, wherein: a plurality of wire end points are disposed on the same side of the glass substrate, and a flexible circuit board is disposed at the end of the wires, and the softness is The circuit board is provided with a plurality of guiding lines, and the guiding lines are respectively connected with one end of the wire, and a plurality of electronic control lines are arranged around the frame of the glass substrate, and the electronic control lines are respectively They are respectively connected with a wire end point to replace the traditional wire layout by the flexible circuit board to reduce the wiring area and achieve the purpose of narrowing the panel wiring. One of the objects of the present invention is to provide a wiring junction of another touch panel, which is placed on a transparent conductive layer of a glass substrate near the edge thereof, and λ has a plurality of electronic control lines, and the glass substrate faces the same One side of the transparent conductive layer, ff corresponds to the position of the electronic control line, respectively, and a plurality of electric control lines such as a plurality of wire families are respectively provided with a guide material between the wires and the corresponding one of the wires to be respectively set by the electronic control circuit and the wire On the opposite side of the glass substrate, the conventional wire and the electronic control circuit are disposed on the glass substrate to reduce the wiring area on the same surface, thereby narrowing the touch panel core: the object shape and the structure are as follows. As a result, the review committee can make a further understanding of the purpose, shape, and function of the present invention. The details are as follows: [Embodiment] The wiring structure of the touch panel is requested. See Figures 2 and 3

1285334 V. INSTRUCTION DESCRIPTION (5) ------ - shows that a transparent conductive material is not provided on one surface of the glass substrate 3, and the glass substrate 3 is along the edge of the transparent conductive layer and transparently moved 32 Between the position of the frame, a plurality of electronic control lines are wound around the ground; one side of the transparent conductive layer and the electronic control line 3 on the same side are provided with a circuit board 4, and the flexible circuit board 4 Extending to the edge of the glass substrate 3 and connecting to a control circuit of the circuit board of the touch panel, the transparent conductive layer is respectively disposed between each of the electronic control circuit 3 and the flexible circuit board 4 A wire end point 34 is provided. Thus, the flexible circuit board 4 replaces the conventional plurality of parallel arranged wires to reduce the wiring area and achieve the purpose of narrowing the control panel wiring. In the present invention, the electronic control circuit 30' of the transparent conductive layer not adjacent to the flexible circuit board 4 is provided with an extension wire 3 extending to an adjacent one of the flexible circuit boards 4, and the extension wires 3 6 and connected to one of the wire end points 34, the flexible circuit board 4 is provided with a plurality of guiding lines (not shown), and the conducting lines are respectively connected to a wire end point 34. In another wiring structure of the touch panel of the present invention, as shown in FIGS. 4 and 5, a transparent conductive layer is disposed on one surface of a glass substrate 3, and the glass substrate 3 is transparent along the edge of the transparent conductive layer. The frame position of the action area 32 is entangled with a plurality of electronic control lines 3 〇, and the glass base-13 is provided with a plurality of wires 35 on one side of the transparent conductive layer, each of the wires One end of the 35 extends to a position close to one side edge of the glass substrate 3, and the other end extends to a position corresponding to one of the electronic control lines 3, and the glass substrate 3 is respectively disposed on the side of the electronic control line 3 A conductive material 37 is disposed between the other ends of one of the corresponding wires 35 (as shown in FIGS. 6 and 7)

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• Show] 'So' the electronically controlled circuit 3 〇 arrangable area of the glass substrate 3 on the transparent conductive layer will not be occupied by the wire to reduce the wiring on the same surface, the area 'reaching the narrow touch panel wiring The purpose. In the present invention, the conductive material 37 may be a flexible circuit board, or may be printed or coated with a conductive ink, or formed by a physical or chemical vapor deposition method to form a metal conductive layer connected to the electronic control lines respectively corresponding thereto. One of the other ends of the wire. " Another wiring structure of the touch panel of the present invention, as shown in Figs. 8 and 9, is provided on a surface of a glass substrate 3 with a transparent conductive device ^, the glass substrate 3 along the transparent conductive A plurality of electronic control lines 3 are disposed around the edge of the layer and the transparent action area 32. The glass substrate 3 is provided with a plurality of wires 35 on one side of the transparent conductive layer. One end of the wire 35 extends to a position close to the same side edge of the glass substrate 3, and the other end extends to a position corresponding to one of the electronic control lines 3'. The glass substrate 3 is at the other end of the wire 3 5 to correspond thereto. Each of the electronic control lines 30 is provided with a conductive hole 38. The conductive hole 38 is electrically connected to the conductive material of the conductive line 30 and the electronic control line 30. Thus, as described above, the side of the glass substrate is provided. Like the conductive material, the wiring area on the same side can be reduced to narrow the touch panel wiring. In the present invention, the conductive hole 38 is drilled by laser (Layer) (C02, YAG, Excimer, Plasma, UV, etc.), water jet drilling, mechanical tool, etc. Forming. In these embodiments, the electronic control circuit 30 and the wire 36 can be printed or sprayed with conductive ink (for example, silver glue, graphite, copper glue, etc.) or

1285334 V. Description of the invention (7) Formed by chemical or chemical vapor deposition. According to the above, it is only one of the best embodiments of the present invention, but the structural features of the present invention are not limited thereto, and any one skilled in the art can easily think about changes in the field of the present invention. Or modifications may be covered by the patents in this case below.

1285334 Brief description of the drawing -- [Simple description of the drawing] Figure 1 is the wiring of the electronic control circuit and the wire on the traditional glass substrate #示立· Figure 2 is the electronic control circuit and guide of one of the glass substrates of the present invention. = Fig. 2; Λ 'Fig. 3 is a schematic diagram of the connection between the wire of the second figure and the flexible circuit board; and Fig. 4 is an electronic control circuit of one of the other glass substrates of the present invention. Figure 4 is a schematic view of a wire disposed on the other surface of another glass substrate; Figure 6 is a schematic view of a conductive material of another glass substrate of Figure 4; Figure 7 is another glass substrate of Figure 5 Schematic diagram of a conductive material; Fig. 8 is a schematic view of a conductive hole of another electronic circuit of a glass substrate; Fig. 9 is a view showing the conductive hole of the wire of another glass substrate of Fig. 8. [Description of main component symbols] Glass substrate............3 Transparent action area.........32 wire............... ...35 Conductive material............37 Parametric circuit board.........4 Electronic control circuit............30 wire end point ·· · .........34 Extension wire·········...36 Conductive hole...............38

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Claims (1)

1285334 6. Patent application scope 1. A wiring structure of a touch panel, comprising: a glass substrate, a transparent conductive layer is disposed on one surface of the glass substrate; and a plurality of electronic control circuits are disposed around the plurality of electronically controlled circuits The position of the frame of the glass substrate; the r-weight circuit board is disposed between one side edge of the transparent conductive layer and the electronic control line of the same side, the flexible circuit board extends beyond the edge of the glass substrate and is connected to The circuit board of the touch panel is provided with a control circuit; a plurality of wire end points are disposed between the electrically conductive layer and the flexible circuit board. 2. The wiring structure according to claim 1, wherein the electronic control circuit of the transparent conductive layer not adjacent to the flexible circuit board is provided with an extended wire extending to an adjacent one of the flexible circuit boards. The extension wires are connected to one of the wire ends. 3. The wiring structure according to claim 1, wherein the flexible circuit board is provided with a plurality of conductive lines, and the conductive lines are respectively connected to an end of a wire. 4. The wiring structure according to claim 1, wherein the frame of the glass substrate is a transparent operation interval of the edge of the transparent conductive layer to the glass substrate. - A wiring structure of a touch panel, comprising: a glass substrate having a transparent conductive layer on one side of the glass substrate; a plurality of electronically controlled circuits wound around the edge of the glass substrate Page 13 8 1285334 Acupuncture, reading a range of profit "" frame position; a plurality of wires are disposed on the surface of the glass substrate facing away from the transparent conductive layer 'one end of the wire extends to a side edge of one of the glass substrates' and the other ends respectively extend to A plurality of conductive materials corresponding to one of the electronic control lines are disposed on the side of the glass substrate between the other ends of the one of the electronic control lines and the corresponding one of the wires. 6. The wiring structure of claim 5, wherein the conductive material is a flexible circuit board. 7. The wiring structure according to claim 5, wherein the frame of the glass f is a transparent operation interval of the edge of the transparent conductive layer to the glass substrate. 8. A wiring structure of a touch panel, comprising: a glass substrate, wherein a transparent conductive plurality of electronic control lines are disposed on one surface of the glass substrate, and are disposed around the frame along the frame of the glass substrate; wire, The plurality of conductive holes extending from one end of the transparent substrate to the side of the glass substrate and extending to one of the electronic control lines are disposed on the glass substrate. The other end of the wire is connected to the corresponding electronic control circuit, and the conductive hole is provided with a conductive material electrically connected to the wire and the electronic control circuit. Page 14 1285334 VI. Patent Application No. 9. The wiring structure of claim 8, wherein the frame of the glass substrate is a transparent operation interval of the edge of the transparent conductive layer to the glass substrate. Page 15 8