TW498364B - Method in producing linear pattern for touch screen - Google Patents

Abstract

A kind of method in producing linear pattern for touch screen is disclosed in the present invention, in which the linear pattern is essential to the five-line resistive type or current type touch screen. The design of linear pattern has direct effects on the precision of touch screen, production cost and frame size. Therefore, the invention uses the printing technique to print the oil ink on the frame of a conductive glass surface to form a linear pattern, in which the oil ink is obtained by mixing highly conductive materials of 59 to 62% silver powder and 14 to 16% carbon powder with 24 to 25% contact solution. Consequently, a ratio value of the resistance value per square of the glass surface to the resistance value at both ends of the linear pattern is controlled at a value about 10 so as to reach an ideal linear pattern.

Description

498364 Case No. 89127451 Λ_η Modification V. Description of the invention (1) The present invention is related to a known linear pattern that can increase the surface resistance value of the glass layer. At present, it is widely used for testing desktop applications. The signal is input in the switch of the electric function window, computer. The various touch screens mentioned above) are produced by the glass edge layer 4 and the four silver wire conductive devices to output four equal current changes. When connected on the touch screen, the controller measures the position, detailed work, linear pattern value and area occupied in actual work. Connected to the edge of the touch screen early to build a linear pattern generated by the touch after manufacturing or dare, 3 7 0. In the same situation, the area of the frame is such that in the touch screen exhibition, the frame is getting smaller and smaller. Each new voltage is applied to the type map or the brain is convenient to touch the glass layer. 5 The voltage cannot be touched. Into a control screen in detail, this method can make the control screen linearly squared. Click and select each type of processing and detection or note-type, so that the user does not control the screen (such as 1, conductive and cable 6 to this touch pattern manufacturing method, especially the current-type touch with resistance value than the linear pattern ends) The screen has been used on a wide computer. After user functions or key commands are used, the computer will then work on the screen. You need to use the keyboard to operate the traditional current film layer 2, linear layer 3, and insulation. Connected to the controller. The control screen is linear at the four ends and measured at the same point. An electrical reference meter is linear. The electrical accuracy data is linear. When the US photoblocking screen is not used, the pattern area is not linear. The change of the terminal power comes to the touch of patent 4, which is caused by the road. This is ideal. Considering that the occupation in the United States is reduced, the pattern will flow. 293, the separate resistance of the control screen is later developed. Different variables are touched 7 3 4 and are used in precision and resistance network, regardless of whether it is issued by printing, 7 9 8 or LCD on the side of the control screen.

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Page 4 498364 Case No. 89127451 Λ_ Said to amend an ideal method to make the touch screen 'Li 3,59 1, 718 But it can't provide a consistent design. This ideal design has never been used in commercial mixed materials. Print out the required electrical I TO conductive glass. A touch screen with a high touch area can be produced. A kind of touch screen (as shown in Fig. 2, the traditional electric glass layer 7, IT0 conductive layer 8, one line 0, insulating layer 1 1, four silver five, and description of the invention (2) a linear pattern has been mentioned earlier, With reference to a specific feasible manufacturing method in the United States for use, here we find a resistance value that matches the existing low, good accuracy, and usable in the market (the other press-type five-wire touch screen mentioned above). 9. A group of insulation points 1 2, another insulation layer 1 3, 5 and a cable 16 are connected to the controller. In the working principle, IT 0 is connected with a uniform electric field in the direction of 0-5 VX axis. When IT 0 of the touch screen layer contacts IT 0 of the lower layer, the ratio of the voltage value at this point represents the position on the touch screen in that direction. The ratio of (X axis) to 3 V indicates that the touched point is measured at 60% of the total length of the touch screen in the X direction. After the control panel converts the lower layer IT 0 to 0-5 VY axis square field, the lower layer IT 0 is used for measurement. The voltage value of the upper touch point is in the (Y-axis) position. For detailed working principles, please refer to the United States, 3 7 0. This type of touch screen also needs a linear pattern. 5 In the current market, this type of touch screen uses EL0's five-wire resistor as the common one. The linear pattern of EL0 is composed of some separated silver paste networks and the removal of some conductive coatings to increase the accuracy of the linear touch screen. Even so, many of the linearity problems of the EL 0 touch screen are removed. Part of the conductive layer also increases the cost. The conductive layer 1 is above and below the plastic film 1 and the upper and lower layers are touched. This voltage value is an example. For example:, to complete the uniform electrical measurement in this direction, the other party patented 3,7 9 8 to improve the accuracy. The touch screen used to form the resistance pattern is still the corner of the touch screen finished product. IT0 conductive layer 1 4 another

Page 5 498364 _Case No. 89127451_ Year Month Date__ V. Description of the invention (3) Therefore, the main purpose of the present invention is to avoid the above-mentioned defects, using silver powder and carbon powder of highly conductive materials and contact solution Printing ink, using this material to print a uniform resistance line to form a connected resistance network at the edge of the touch screen as a linear pattern, to achieve the accuracy of the touch screen, reduce the cost and reduce the area of the frame used. Another object of the present invention is that highly conductive materials can also be replaced by other metal materials. For example, copper powder is used. As long as the relative composition is changed to achieve an appropriate resistivity, an ideal linear pattern can also be made. The size and height of the pattern can also be used to compensate for the high or low conductivity of the material to ensure that the resistance value per square of the final glass surface is about 10 compared to the resistance value at the ends of the linear pattern. It is related to the technical content and detailed description of the present invention, and it is explained with the drawings as follows: Please refer to "shown in Fig. 3", which is a schematic diagram of the first linear pattern structure after the improvement of the linear layer in Fig. 1 or 2 . As shown in the figure, the method for manufacturing the linear pattern of the touch screen of the present invention mainly improves the linear patterns of the linear layers 3 and 9 as shown in FIG. 1 and FIG. 2 to improve the linear accuracy of the touch screen. Because the resistance value per square of the surface of the glass layers 1 and 7 (as shown in Figures 1 and 2) is greater than the resistance value at both ends of the linear pattern 3 A and the uniformity of the linear pattern 3 A itself determines the linear accuracy of the touch screen. The linear pattern 3 A used in the invention is printed on the south conductive material on the glass layer 1, 7 or other materials forged with low-conductivity material by printing. Therefore, the linear pattern 3 A itself is very uniform, and it only determines the linear accuracy of the touch screen. The resistance value per square of the surface of the glass layers 1 and 7 is greater than the resistance value at the ends of the linear pattern 3 A.

Page 6 498364 Case No. 89127451 Amendment V. Description of Invention (4).

The higher the value, the higher the accuracy, but the higher the ratio, the controller will not be easy to measure. Therefore, ‘the ratio is controlled at about 10 in practice. The resistance value per square of the surface of the glass layers 1 and 7 can be selected in the existing market, such as but not limited to Merck IT 0 glass per square 5 0 Ω Ω or Guanhua IT 5 glass 0 5 Ω per square Ω, linear pattern The resistance value at both ends is calculated by the following formula; R = (pL) " WH)

P is the resistivity determined by the material. The size of p can be changed by the conditions of the ratio of silver powder and carbon powder. L is the length, W is the width, and Η is the height. Therefore, the linear pattern 3 can be changed by printing control. resistance. (After obtaining the resistance value by using the aforementioned formula, after comparing with the resistance value of IT0 used above, the resistance value ratio of the glass layers 1 and 7 to the linear pattern 3 A can be obtained.) This kind of linear pattern structure is composed of 62% silver powder and 14% carbon powder of high conductive material, and then added 24% contact agent (or adhesive) solution to mix the ink. This ink is printed on the surface of conductive glass ITO (such as glass layers 1 and 7 in Figures 1 and 2). When printing this linear pattern 3 A, the height is 10 micrometers, so the resistance is 0.5 ohms per square. The width of the linear pattern 3 A is 3 legs and the length of each side is 3 0 null, so that each side is exactly 100 squared, so the resistance at both ends is exactly 100 ohms, and the IT 0 glass used Is 5 0 0 ohms per square,

The resistance of I T 0 is a linear pattern with a resistance value of 10 to 1. The linear accuracy of the touch screen will be higher than 99%. Please refer to "shown in Fig. 4", which is a schematic diagram of the second linear pattern structure after the improvement of the linear layer in Fig. 1 or 2. As shown: The highly conductive material of this linear pattern 3 B is composed of 59% silver powder and 16% carbon powder.

Page 7 498364 _Case No. 89127451_ Amendment _ V. Description of the invention (5) After adding 25% contact agent (or adhesive) solution to form an ink, this ink is printed on On the surface of conductive glass IT 0 (such as glass layers 1 and 7 in Figures 1 and 2), the printing height of this linear pattern 3 B is 10 microns, so the resistance is 1 ohm per square, and the width of this linear pattern 3 B The length of each leg is 3 0 legs, so that each side is exactly 100 squares, so the resistance at both ends is exactly 100 ohms, and the IT 0 glass used is 100 ohms per square. , The linear accuracy of the touch screen composed of the resistance value of IT 0 with the resistance value of the linear pattern on both sides 10 to 1 will be higher than 99%.

The above are two typical examples. The present invention is not limited to the south conductive material using silver charcoal powder, but can also be replaced by other metal materials, such as copper powder. As long as the relative composition is changed to achieve the appropriate resistivity, You can make an ideal linear pattern. In the adjustment of the material, you can also use the size and height of the pattern to compensate for the high or low conductivity of the material to ensure that the resistance value per square of the final glass surface is greater than that at the ends of the linear pattern. The resistance value is about 10. Further, in addition to the linear patterns 3A and 3B of the present invention, the linear patterns 3A and 3B of the frame can be printed into a linear pattern 3C in the shape of a line (as shown in FIG. 5), in addition to the above-mentioned frame shape.

The above are merely preferred embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention. That is, all equal changes and modifications made in accordance with the scope of patent application of the present invention are covered by the scope of patent of the present invention.

Page 8 498364 _Case No. 89127451_Year Month and Day__ Brief Description of the Drawings [Illustration of the Drawings] Figure 1 shows the structure of the current touch screen. Figure 2 is an exploded view of the structure of a conventional five-wire voltage touch screen. Fig. 3 is a schematic diagram of the first linear pattern structure after the improvement of the linear layer of Fig. 1 or 2. Fig. 4 is a schematic diagram of the second linear pattern structure after the improvement of the linear layer of Fig. 1 or 2. FIG. 5 is a schematic diagram of a third linear pattern structure of the present invention. [Explanation of reference numerals in the figure] Glass layer ......... 1, 7 conductive film layer ......... 2 Linear layer ... ..... 3, 9 Insulating layers ... 4, 1 1 and 1 3 Four silver wire conductive layers ... 5 and 1 2 cable ... ... 6, 1 6 ITO conductive layer ......... 8, 14 Insulation point ......... 10 Plastic film ... ... 15

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Claims (1)

498364 _Case No. 89127451_ 年月 日 __ VI. Scope of Patent Application " 1. A method for manufacturing a linear pattern of a touch screen. This touch screen system includes a glass layer, a conductive film layer, A linear layer, an insulating layer, four ... silver wire conductive layers and a row of wires are connected to the controller. This controller outputs four equal voltages to the four linear ends of the touch screen and measures the change in current. It is characterized in that: the above linear layer is an ink made by mixing 5 9 ~ 62% silver powder and 1 4 ~ 16% carbon powder with a highly conductive material, and adding 2 4 ~ 25% contact agent liquid By printing, this ink is printed on the surface frame of the conductive glass layer to form a linear pattern, so that the resistance value per square of the glass layer surface to the ratio of the resistance values at the ends of the linear pattern is controlled to about 10. 2. A method for manufacturing a linear pattern of a touch screen. The touch screen system includes: a glass layer, an IT 0 conductive layer, a linear layer, a group of insulation points, an insulation layer, and a four silver wire conductive layer. , Another insulation layer, another IT 0 conductive layer, plastic film and cable are connected to the controller. When the touch screen is touched, the upper IT 0 contacts the lower IT 0 to measure the voltage value at that point. It is characterized in that the above-mentioned linear layer is composed of 59 ~ 62% silver powder and 14 ~ 16% carbon powder with a highly conductive material, and then mixed by adding 2 ~ 25% contact agent solution. This ink is printed on the surface of the conductive glass layer by printing to form a linear pattern, so that the resistance value per square of the glass layer surface to the ratio of the resistance values at the ends of the linear pattern is controlled to about 10%. 3. The manufacturing method of the touch screen linear diagram® solution described in item 1 or 2 of the scope of patent application, wherein the resistance value per square of the surface of the glass layer can be ITO glass per square 50,000 or per square 1 500 Ω ITO glass. Page 10, 498364, case number 89127451, Amendment VI. Patent application scope 4, the manufacturing method of the touch screen linear diagram as described in item 1 or 2 of the patent application scope, wherein p of the linear pattern is resistance The rate is determined by the material. The size of p can be changed by the ratio of silver powder and carbon powder. L is the length, W is the width, and Η is the height. Therefore, the resistance value at both ends of the linear pattern can also be changed by printing control. 5. The method for manufacturing a touch screen linear pattern as described in claim 1 or 2, wherein the linear pattern is printed at a height of 10 micrometers, and the resistance is 0.5 ohm per square, the linear pattern. The width of each side is 3 mm, and the length of each side is 300 mni, so that each side is exactly the square of 100, so that the resistance at both ends is exactly 100 ohms, and the IT 0 glass used is 50 ohms per Squared, the resistance of IT 0 is 10 to 1 in a linear pattern on both sides. 6. The method for manufacturing a touch screen linear pattern according to item 1 or 2 of the scope of patent application, wherein the printing height of the linear pattern is 10 micrometers, and the resistance is 1 ohm per square. The width is 3 mm, and the length of each side is 300 mm, so that each side is exactly the square of 100, so the resistance at both ends is exactly 100 ohms, and the IT 0 glass used is 100 ohms per Squared, the resistance of IT0 is 10 to 1 in a linear pattern on both sides. Participate Page 11