TWI497356B - Touch panel with uniformed electrode pattern - Google Patents

Description

Touch panel with homogenized electrode pattern

The present invention relates to a touch panel, and more particularly to a touch panel having a homogenized electrode pattern.

At present, the mainstream touch panels on the market are both resistive and capacitive. Among them, the resistance type is divided into the early four-wire resistive and five-wire resistive, six-wire or eight-wire resistive, and the capacitive type is divided into Surface Capacitance Touch Screen (SCT) and Projective Capacitance. Touch Screen, PCT). Among them, the projected capacitive touch panel can also be called digital touch technology, and the resistive and surface capacitive touch panels can be collectively referred to as analog touch technology.

Traditional analog touch technology seeks to establish a uniform equipotential electric field through the pattern configuration of resistive elements around the edges. With the continuous development of touch technology and the increasing requirements of related application products, how can the current technology reduce the space occupied by the resistive elements around the edge and require a more gentle edge equipotential field. The accuracy of the touch panel is increased and the available range is larger.

Reference is made to U.S. Patent No. 6,593,916, which is incorporated herein incorporated by reference in its entirety in its entirety in its entirety in the entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire The way to improve the potential "chopping" effect produced by the bezel area, as shown in Figures 1A and 2A. In the pattern of FIG. 1A, the series resistance chain is formed by connecting the series electrodes 40 in series on the conductive layer to form a gap 44. The spacing between the series electrodes 40 is S, which includes the outer portion and the inner portion, such as The outer parts in the figure are 38, 41, 43, etc., while the inner part Points 42. The inner portion is formed by forming two insulating gaps 45 at every two gaps 44. One of the insulating gaps 45 is located at the gap 44, and the insulating gaps 45 are separated by discontinuous resistive segments 46, the lengths of which are slightly equal. The distance is S', and the equivalent resistance is as shown in Fig. 1B.

In the pattern of Fig. 2A, the series resistance chain is formed by connecting series electrodes 48, 50 in series on the conductive layer to form a gap 54. The distance between the series electrodes 48, 50 is S, which includes an outer portion and an inner portion. The inner portion is formed by forming two insulating gaps 55 at every two gaps 54. Each insulating gap 55 is located in the inner portion of the series electrode, and the insulating gap 55 is spaced apart by a discontinuous resistive segment 56. Slightly equal, the distance is S'. Its equivalent resistance is as shown in Figure 2B.

Next, please refer to U.S. Patent Publication No. 2006/0119587, which discloses another improved electrode pattern, as shown in Fig. 3A. The series resistor chain 145 is formed by forming a series of electrodes 105 connected in series on the conductive layer to form a gap 125. The series electrode 105 includes an outer portion 110 and an inner portion 115, and the outer portion 110 and the inner portion 115 form a gap 120. . The inner portion is formed by forming two insulating gaps 130 at every two gaps 125, and there are discontinuous resistive segments 145 between the insulating gaps 130, the lengths of which are slightly equal, and are designed at the gaps 125 of the series electrodes 105. A conductive island 140 is interposed between the insulating gaps to improve the chopping effect. If the voltage of the discontinuous resistor segment 145 is V _N , V _N+1 , the voltage of the conductive island 140 located therebetween can be averaged to (V _N +V _N+1 )/2, and the equivalent circuit is shown in FIG. 3B. Figure.

Although many manufacturers have worked hard on the peripheral resistive element pattern research of touch panels, there is still much room for improvement in improving the equipotential electric field of the edge electrodes.

In view of the above problems of the prior art, the present invention proposes a touch having a homogenized electrode pattern The control panel, through the voltage leveling provided by the discontinuous resistor chain, and the voltage equalization provided by the homogenizing electrode, can provide extremely narrow side line routing space, and can also obtain excellent linearity near any edge of the line. Accuracy, error value ≦ 1%.

Another object of the present invention is to provide a touch panel having a uniform electrode pattern, which is narrowed by a tightly combining the discontinuous resistor chain and the homogenizing electrode and the series electrode chain around the conductive layer. The purpose is to increase the touchable area within the same substrate area, thereby improving the flexibility of the product design.

In order to achieve the above object, the present invention provides a touch panel having a homogenized electrode pattern, comprising: a substrate; a conductive layer formed on the substrate and having an internal contact region; and a plurality of corner electrodes formed on the conductive layer a corner electrode chain, comprising a plurality of electrodes formed at an edge of the conductive layer and connected to the corner electrodes, forming a rectangular electric field when the corner electrodes are applied with a voltage, each of the electrodes having a face An inner portion of the inner contact region has a gap between the adjacent electrodes; a discontinuous resistor chain comprising a plurality of discontinuous resistors formed on the conductive layer and electrically connected to the series electrode chain and formed in parallel Arranging and forming an isolation from the inner contact region; and a first homogenizing electrode chain formed by a plurality of first homogenizing electrode spacers formed on the edge of the discontinuous resistor chain adjacent to the inner contact region so that The output voltage of the discontinuous resistor is uniformized.

In addition, the touch panel further includes a second homogenizing electrode chain formed by a plurality of second homogenizing electrodes spaced apart to form a spacing between each of the two first homogenizing electrodes, so that the homogenizing electrode chain The output voltage is more uniform.

The length of the discontinuous resistor is calculated by the equation of Y=aX ² +b to obtain a good compensation effect, and the isobar line generated by the rectangular electric field is homogenized, wherein the X system is that the electrode is started by the corner electrode. The number, b is the experimental default value, a is calculated by a preset line segment maximum value Ymax, the maximum value of the line segment is determined by the length of the series electrode chain located at the central electrode segment of the two corner electrodes .

The plurality of discontinuous insulating segments forming the discontinuous resistor chain are closely coupled to the inner portion of the series electrode chain and the edge of the homogenizing electrode chain.

The detailed features and advantages of the present invention are set forth in the Detailed Description of the Detailed Description of the <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> </ RTI> <RTIgt; The objects and advantages associated with the present invention can be readily understood by those skilled in the art.

The present invention is a new design pattern and structure, which is used in the detection of a capacitive touch panel, which utilizes a small capacitance between a high-impedance transparent conductive film and a touch object (intermediately separated by a thick film transparent insulating material), that is, The touch coordinates of the touched object can be accurately detected. When the resistive touch panel is detected, the touched object can be accurately detected by using the voltage level detected by the touch object after touching the touch panel.

First, please refer to FIG. 4 , which is a layered diagram of the touch panel of the present invention, which includes a basic electrode frame layer 400 , a conductive layer 300 , and a substrate 200 . The pattern of the electrode frame layer 400 can be printed on the conductive layer 300 through a screen printing process by using an environmentally friendly lead-free high-temperature silver paste. The silver metal is fused to the conductive layer 300 through a high temperature of 500 ° C or higher, and the conduction resistance value between the electrodes is extremely small (which can be regarded as a near zero resistance value). It has high resistance to changes in ambient temperature. In addition, after the silver wire and the conductive layer 300 are crystallized at a high temperature, the chemical resistance can be remarkably improved. In addition, other metals than silver wires, such as molybdenum/aluminum/molybdenum metal layers, chromium or others, may be used. Good metal. In addition, the conductive layer 300 can be used with a higher impedance, so that it has the effect of less loss of energy and less current.

Structurally, the substrate 200 may be a glass substrate, and the conductive layer 300 may be formed by sputtering, and the pattern on the conductive layer 300 may be formed by etching or laser. Next, a high temperature silver paste pattern is printed to form the electrode frame layer 400. Further, the substrate 200 may be formed of other materials, for example, a flexible substrate, and an electrode pattern may be formed by a process suitable for a flexible substrate.

Next, please refer to FIG. 5, which is a structural diagram of the conductive layer 300 of the present invention, wherein the black areas are the insulating portions 311, 312, 313, 314 distributed around the conductive layer, the X-axis is the insulating portion 312, 314, and the Y-axis is insulated. Sections 311, 313. The insulating portions 311, 312, 313, and 314 are formed by etching or laser irradiation, and function to isolate the electrode layer of the electrode frame layer 400. If not etched into an insulating portion, a conductive discontinuous resistance chain is formed to form each electrode output. The average voltage level of the port to form a uniformly distributed equipotential electric field. Wherein, the discontinuous resistance chain that is not etched is calculated by the formula of Y=aX ² +b to form a non-uniformly distributed insulating portion as shown in FIG. 5. The detailed parameter acquisition method will be explained later.

In addition, the four corners 321, 322, 323, 324 of the conductive layer 300 are the positions of the four corner electrodes.

Next, please refer to FIG. 6, which is a structural diagram of the electrode frame layer 400 of the present invention, which includes four corner electrodes 411, 412, 413, 414, and a series electrode chain 420 connected in series with the four corner electrodes. Finally, there is a group and The series electrode chain 420 forms an electrode chain 430 of a first separation distance (D1). Wherein, in the embodiment of FIG. 6, the series electrode chain 420 is formed by overlapping a plurality of Z-type electrodes with an inner portion and an inner portion, and each electrode is formed with a fixed gap as a subsequent series resistance. Forming space. Thus, when the electrode frame layer 400 is formed on After the conductive layer 300, the fixed gap between the electrodes of the series electrode chain 420 constitutes a series resistance chain, so that the voltage transmitted from the corner electrode provides a series voltage supply. The electrode chain 430 can then subdivide the voltage supplied by the series electrode chain 420 into a finer voltage distribution.

Among them, the series resistance chain can be other structures, such as S-type, fork type, continuous section and other design methods, in order to achieve continuous distribution of voltage is appropriate. The number of Z-type electrodes of the series electrode chain 420 can be designed according to the size of the touch panel. The size of the panel is from small to large, and can be designed as 3, 5, 7, 9, 11, 13, 15 for each axis. 17,...(2n+1), n>1 and other different numbers of electrodes. For example, Figure 6 is an example of nine Z-type electrodes. The central electrode segment is formed by reversing two Z-shaped electrodes and has a length of Ymax. From left to right, there are Y1, Y2, Y3, Y4, Y5 electrodes, and so on.

Since the input voltage of the series electrode chain is transmitted by the corner electrode, a pressure drop occurs at each Z-type electrode after passing through the series resistance chain. In order to provide a uniform electric field distribution of the conductive layer 300, the present invention generates a non-uniform resistance through a discontinuous resistance chain generated by the insulating portions 311, 312, 313, 314 on the conductive layer 300, and the closer the distance is to the corner electrode, the greater the giving The basic principle of resistance is to design the resistance value of the discontinuous resistor chain. Thus, the voltage value delivered via the series resistor chain will be compensated by the discontinuous resistor chain to form a uniform voltage supply.

However, the voltage value supplied by the discontinuous resistor chain may result in poor edge margin of the voltage distribution due to the different lengths of the resistor segments of the discontinuous resistor chain. Therefore, in addition to the design of the discontinuous resistance chain, the present invention further provides the design of the electrode chain 430 so that the supply of voltage can be sufficiently uniformized. The electrode chain 430 is disposed on the inner layer of the discontinuous resistor chain after the electrode frame layer 400 is formed on the conductive layer 300, that is, the discontinuous resistor chain is disposed in the series electrode chain 420 and the electric Between the pole chains 430. Therefore, after the voltage supply of the discontinuous resistor chain is supplied and the voltage of the electrode chain 430 is uniformized, the present invention can provide a touch panel with an excellent electric field uniformity, and the error range of the measured result is within 1%.

In the fourth to sixth embodiments, the electrode structure of the present invention will be described with an overall structure. Next, the homogenized electrode pattern of the present invention will be described with a detailed structural view.

Please refer to FIG. 7, which is a detailed structural view of the electrode frame layer 400 of FIG. The figure shows four Z-type electrodes, of which two complete (segment length L1), two fragments. Z-type electrodes 420-X _n-1 , 420-X _n , 420-X _N+1 provide voltage distributions of V _N-1 , V _N , V _N+1 , respectively, and electrode chain 430 provides finer Voltage distribution. The gap D1 formed by the inner portion of the Z-shaped electrode and the electrode chain 430 is determined by the physical characteristics of the conductive layer 300, which is a discontinuous resistance chain required for formation. Therefore, the formula of the resistance is R=ρL/ A, the required D1 value can be calculated. Where R is the resistance value at both ends of the wire, ρ is the conductivity of the wire, A is the cross-sectional area of the wire, and L is the length of the wire. At the same time, this gap D1 is where the discontinuous resistance chain is formed, which will be described later.

The Z-type electrodes have a horizontal interval 421 and a vertical interval 422, so that a series resistance is formed between the Z-type electrodes, thereby forming a series resistance chain. The Z-type electrode thickness is T1, and the specific thickness design depends on the manufacturing technology. In principle, the thinner the thickness T1 of the Z-shaped electrode, the better, to reduce the size of the bezel so that the touchable area of the touch panel is larger.

The electrode chain 430 includes a first homogenizing electrode 431 and a second homogenizing electrode 432. The length of the first homogenizing electrode 431 is L2, the thickness is T2, and the width of the interval 434 is L5, and the first homogenizing electrode 431 can be a T-shaped structure, and the length of the T-shaped bottom is L2A, and the thickness is It is preferred to be parallel to the second homogenizing electrode 432. The length of the second homogenizing electrode 432 is L3, and the The distance between the one homogenizing electrode 431 and the second homogenizing electrode 432 is 433. Wherein, the T-type bottom length L2A of the first homogenizing electrode 431 is equal to the length L3 of the second homogenizing electrode 432, and the T-shaped bottom edge of the first homogenizing electrode 431 and the second homogenizing electrode 432 are preferred. The gap distance L4 formed by the edge is preferably 2/3 of the length of the second homogenizing electrode 432, and the remaining ratios may be, for example, 1/5, 1/4, 1/3, 1/2, 2/. 5, 2/7, 3/5, 3/7, 4/5,... The actual test can be used to determine which of the electric field uniformities achieved is optimal.

On the inner edge of the inner portion of the Z-type electrode of the series electrode chain 420, a plurality of first homogenizing electrodes 431 (constituting the first homogenizing electrode chain) and a plurality of second homogenizing electrodes 432 of the homogenizing electrode chain 430 are evenly distributed ( The second homogenizing electrode chain is constructed as shown in Fig. 7. When the electrode chain 430 is formed on the conductive layer 300, the spacing 433, 434 between the first homogenizing electrode chain and the second homogenizing electrode chain constitutes a resistive structure on the conductive layer 300. Since the first homogenizing electrode chain and the second homogenizing electrode chain are uniformly distributed, the voltage transmitted through the Z-type electrode and then via the discontinuous resistance chain can be further distributed. That is, the electrode chain 430 can cause the electric field ultimately transmitted to the touch area of the conductive layer 300 to be more evenly distributed.

And the number of the first homogenizing electrode chain and the second homogenizing electrode chain in the inner edge of each inner portion of the Z-shaped electrode, in addition to the two groups in the seventh figure, can be made by different production factors according to the production skill, for example, It can be made into 3 groups, 4 groups, 5 groups...all. Such a configuration needs to be considered together with the design of the discontinuous resistor chain on the conductive layer 300. That is, the position of each of the first homogenizing electrodes 431 is disposed in a discontinuous resistance section as a medium for voltage transfer. The second homogenizing electrode 432 can then perform a more detailed configuration of the voltage, for example, making a third homogenizing electrode and then homogenizing once.

Next, please refer to FIG. 8 , which is to place the electrode frame layer 400 on the conductive layer 300. Big picture. It can be clearly seen from the figure that the discontinuous resistor 331 is formed between the insulating portion 311, the Z-type electrode and the first homogenizing electrode 431, and the conductive layer 300 forms a resistance, and also forms a conduction portion of the Z-shaped electrode. Further, it is seamlessly joined between the discontinuous resistor 331 and the Z-electrode and the first homogenizing electrode. As is clear from the figure, the inner portion of each of the Z-shaped electrodes has a section of the discontinuous resistor 331; and the center of the vertical portion of the Z-shaped electrode corresponds to a section of the discontinuous resistor 331. Therefore, the first homogenizing electrode 431 can conduct and homogenize the voltage of the Z-type electrode by the discontinuous resistor 331, and then carry on the voltage of the first homogenizing electrode 431 by the second homogenizing electrode 432. Secondary homogenization. Since the second homogenizing electrode 432 is arranged in parallel with the T-shaped bottom of the first homogenizing electrode 431, the voltage of the first homogenizing electrode 431 and the voltage of the second homogenizing electrode 432 can be uniformly output to the conductive layer 300. .

In addition, since the discontinuous resistor chain provides different resistances to the Z-type electrodes as voltage outlets as compensation for voltage, then the output voltage of each Z-type electrode via the discontinuous resistor segments will be uniform. After the electric field of the electrode chain 430 is homogenized, a fairly uniform fringe electric field distribution can be obtained, which can effectively reduce the chopping effect of the fringe electric field.

The length of the discontinuous resistor 331 is calculated according to the formula of Y=aX ² +b. The calculation method is as follows:

1.X is the number of Z-type electrodes calculated from the corner electrodes. For example, starting from the corner electrode 411, there are X1=1, X2=2, X3=3, X4=4, X5=5, and 5 Z-type electrodes. .

2.b is the preset value, which is obtained by experiment and statistics. The best one is between 0.3~2.0mm.

3.a is calculated from Ymax, and the size of Ymax can be obtained from the length of the center electrode 429 above the sixth figure. As for the length of the center electrode, it is evaluated by the size of the panel and the number of series electrode chains. Ymax is better, the length of the electrode is subtracted from each other. 0.1mm is the best.

4. From Ymax, b value and X value, a value parameter can be obtained.

Thus, Y _n-1 length to _{Y n-1 = a (n} -1) 2 + b calculated, the length Y _n to ^{_{Y n = a (n) 2}} + b calculated sum. The length of Y _n-0.5 between Y _n-1 and Y _n can be calculated in two ways: IX = (X _n-1 + X _n ) / 2, and then substituted into the formula; II. (Y _n-1 +Y _n )/2. The actual effect is better in the first form.

Wherein, the optimal position of the discontinuous resistor 331 is the center of the vertical segment YC1 of the Z-shaped electrode and the center YC2 of the inner portion thereof (the center of the center of the two vertical segments), and the center of the first homogenizing electrode corresponds to the discontinuity The center of the resistor can be. Of course, some deviations in manufacturing, or non-central configuration at the time of design, are also available to the present invention, all of which achieve the desired effects of the present invention.

In addition, in practice, a design method in which a plurality of discontinuous resistors are distributed in the inner portion of the Z-type electrode can also be employed. In other words, the present invention is characterized in that a discontinuous resistor is disposed between each electrode and the electrode of the series electrode chain, and one or more unconnected resistors may be disposed in the inner portion of each electrode. In addition, more than one first homogenizing electrode may be disposed for each discontinuous electrode, and more than one second homogenizing electrode may be disposed between the first homogenizing electrodes. That is, the discontinuous resistance, the number of the first homogenizing electrode or the second homogenizing electrode is configured to achieve the problem of electric field homogenization to be solved by the present invention, and the accuracy and cost achievable by the visual production equipment are The main consideration.

If the inner portion of the electrode of each series electrode is designed with a plurality of discontinuous resistances, that is, at the center of the vertical portion of the two Z-shaped electrodes YC1 (if other electrode structures are used, the electrode between the electrodes and the electrodes) The internal portion) is configured with a plurality of discontinuous resistors, and the length calculation of the discontinuous resistor disposed therebetween can also be obtained by the above two calculation methods. For example, when two discontinuous resistors are disposed on the inner portion of the Z-shaped electrode, it is preferably equidistantly disposed with the discontinuous resistors on both sides, such as between Y _n-1 and Y _n , respectively Y _n-0.67 , Y _n-0.33 . And Y _n-0.67 = a(n-0.67) ² +b, with Y _n-0.33 = a(n-0.33) ² +b; or, Y _n-0.67 = (Y _n-1 *2+Y _n * 1) /3 is Y _n-0.33 = (Y _n-1 *1 + Y _n * 2) / 3. Among them, the former has a better effect.

Further, discontinuous resistors obtained by different calculation methods can also be used in the present invention. A good uniform voltage distribution can be formed by the first homogenizing electrode of the present invention or by the combination of the first homogenizing electrode and the second homogenizing electrode of the present invention. The Z-type electrode is only one embodiment used in the present invention, and the shape of other different series electrode chains can also be used as an embodiment of the present invention. Since the principles are the same, they will not be described below.

Thus, the resistance between the corner electrodes 411, 412, 413, 414 can be averaged by the pattern design of the electrode frame layer 400 and the conductive layer 300 of the present invention. Therefore, the voltage equipotential line of the X-axis can obtain an excellent parallel line distribution even at the edge of the line; similarly, the voltage equipotential line of the Y-axis can also obtain an excellent parallel line distribution.

In the embodiment of Fig. 8, the insulating portion 311 constituting the discontinuous resistor 331 is formed between the inner portion of the series electrode chain 420 and the first series electrode chain 431, and the insulating portion 311 and the series electrode chain 420 and the A series electrode chain 431 is closely coupled to form a good insulating relationship. With such a structure, the voltage of the Z-type electrode can be efficiently supplied to the first series electrode chain 431.

However, at the time of production and manufacturing, variations in the process are inevitably caused, so that the insulating portion 311 is not accurately formed between the inner portion of the series electrode chain 420 and the first series electrode chain 431. From the perspective of product use, these products can still be listed as good if they meet the requirements of customers. Product.

Please refer to FIG. 9 , which is a second example of an enlarged view of the electrode frame layer 400 formed on the conductive layer 300 . The insulating portion 311 of the discontinuous resistor 331 is formed between the inner portion of the series electrode chain 420 and the first series electrode chain 431, and the insulating portion 311 forms a pitch D1A with the series electrode chain 420, and the first series electrode chain 431 forms a pitch D1B. This structure can still achieve an effective electric field uniform distribution.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

38‧‧‧External part

40‧‧‧ series electrode

41‧‧‧External part

42‧‧‧Internal part

43‧‧‧External part

44‧‧‧ gap

45‧‧‧Insulation gap

46‧‧‧discontinuous resistance segment

S‧‧‧ spacing

S’‧‧‧ spacing

48‧‧‧ series electrode

50‧‧‧ series electrode

54‧‧‧ gap

55‧‧‧Insulation gap

56‧‧‧discontinuous resistance segment

105‧‧‧ series electrode

110‧‧‧External part

115‧‧‧ internal part

120‧‧‧ gap

125‧‧‧ gap

130‧‧‧Insulation gap

140‧‧‧conductive island

145‧‧‧discontinuous resistance segment

V _N , V _N+1 ‧‧‧ voltage

200‧‧‧Substrate

300‧‧‧ Conductive layer

311‧‧‧Insulation

312‧‧‧Insulation

313‧‧‧Insulation

314‧‧‧Insulation

321‧‧‧ corner

322‧‧‧ corner

323‧‧‧ corner

324‧‧‧ corner

331‧‧‧Discontinuous resistance

400‧‧‧electrode frame

411‧‧‧ corner electrode

412‧‧‧ corner electrode

413‧‧‧ corner electrode

414‧‧‧ corner electrode

420‧‧‧Series electrode chain

421‧‧‧ interval

420-X _n-1 , ‧‧‧Z type electrode

420-X _n ‧‧‧Z type electrode

420-X _N+1 ‧‧‧Z type electrode

422‧‧‧ gap

423‧‧‧ gap

429‧‧‧Central electrode

430‧‧‧electrode chain

431‧‧‧First homogenizing electrode

432‧‧‧Second homogenized electrode

433‧‧‧ interval

434‧‧‧ interval

D1‧‧‧ spacing

D1A‧‧‧ spacing

D1B‧‧‧ spacing

Ymax‧‧‧Maximum electrode length

L1‧‧‧ length

L2‧‧‧ length

L2A‧‧‧T type bottom length

L3‧‧‧ length

L4‧‧‧ clearance distance

L5‧‧‧Width

T1‧‧‧ thickness

T2‧‧‧ thickness

1A is a first example of a conductive bezel electrode pattern used in a touch panel of the prior art; FIG. 1B is an equivalent circuit of the conductive bezel electrode pattern of FIG. 1A; FIG. 2A is a conventional technique for The second example of the conductive frame electrode pattern of the touch panel; the second circuit is the equivalent circuit of the conductive frame electrode pattern of the second embodiment; the third embodiment is the third embodiment of the conductive frame electrode pattern for the touch panel. 3B is an equivalent circuit of the conductive bezel electrode pattern of FIG. 3A; FIG. 4 is a layered view of the touch panel of the present invention; FIG. 5 is a structural view of the conductive layer 300 of the present invention; 6 is a structural view of the electrode frame layer 400 of the present invention; FIG. 7 is a detailed structural view of the electrode frame layer 400 of FIG. 6; and FIG. 8 is a view showing the electrode frame layer 400 formed of a conductive layer for the present invention. The enlarged view after 300; and the ninth figure is a second example of an enlarged view of the electrode frame layer 400 formed on the conductive layer 300 of the present invention.

311‧‧‧Insulation

331‧‧‧Discontinuous resistance

421‧‧‧ interval

422‧‧‧ gap

423‧‧‧ gap

420-X _n-1 , ‧‧‧Z type electrode

420-X _n ‧‧‧Z type electrode

420-X _n+1 ‧‧‧Z type electrode

431‧‧‧First homogenizing electrode

432‧‧‧Second homogenized electrode

Claims (15)

A touch panel having a homogenized electrode pattern, comprising: a substrate; a conductive layer formed on the substrate and having an internal contact region; a plurality of corner electrodes formed at a corner of the conductive layer; and a series electrode chain, a plurality of electrodes are formed on the edge of the conductive layer and connected to the corner electrodes. When a voltage is applied to the corner electrodes, a rectangular electric field is formed, and each of the electrodes has an inner portion facing the inner contact region. a gap between the adjacent electrodes; a discontinuous resistor chain comprising a plurality of discontinuous resistors formed on the conductive layer and electrically connected in parallel with the series electrode chain, wherein the discontinuous resistor chain is a plurality of discontinuous insulating segments are formed on the conductive layer, and the discontinuous insulating segments are seamlessly arranged with the inner portion of the series electrode chain; a first homogenizing electrode chain is composed of a plurality of first homogenizing An electrode is formed at an edge of the discontinuous resistor chain adjacent to the inner contact region to homogenize an output voltage of the discontinuous resistor, the first homogenizing electrode comprising a rod portion and a straight rod portion; and a second homogenizing electrode chain formed by a plurality of second homogenizing electrodes spaced apart at a spacing of each of the two first homogenizing electrodes to homogenize the first homogenizing electrode The output voltage of the chain, the second homogenizing electrode is linear and arranged parallel to the bottom end of the straight portion of the first homogenizing electrode and forming a pitch. The touch panel of claim 1 , wherein the width of the bottom end of the straight portion of the first homogenizing electrode is equal to the length of the second homogenizing electrode. The touch panel of claim 1 , wherein a width of a bottom end of the straight portion of the first homogenizing electrode is equal to a length of the second homogenizing electrode, and the second homogenizing electrode is The ratio of the length to the length of the spacing is 3:2. The touch panel of claim 1 , wherein the corner electrodes, the series electrode chain, the first homogenizing electrode chain and the second homogenizing electrode chain are selected from the group consisting of silver wires, molybdenum/ A group of aluminum/molybdenum metal layers and chrome wires. The touch panel of claim 1 , wherein the corner electrodes, the series electrode chain, the first homogenizing electrode chain and the second homogenizing electrode chain are high temperature silver pastes above 500° C. Made of silver wire. The touch panel having the homogenized electrode pattern of claim 1 further includes a third leveling electrode chain formed by a plurality of third leveling electrodes spaced apart at a spacing between each of the two secondizing electrodes. To homogenize the output voltage of the second homogenizing electrode chain. The touch panel of claim 1 , wherein the discontinuous resistor chain is formed by forming a plurality of discontinuous insulating segments on the conductive layer, and the discontinuous insulating segment is coupled to the first The electrode chains are arranged seamlessly. The touch panel of claim 1 , wherein the discontinuous resistor chain is formed by forming a plurality of discontinuous insulating segments on the conductive layer, and the discontinuous insulating segment is connected to the series electrode chain. The inner portion and the first homogenizing electrode chain are seamlessly arranged. The touch panel of claim 1 having a homogenized electrode pattern, wherein the inner portion of each of the electrodes is adjacent to at least one of the discontinuous resistors, and the gap is electrically connected to one of the discontinuous resistors, the The length Y of the continuous resistance is equal to aX ² +b, wherein the a and b values are constants, and the X value is equal to the value of the number of electrodes from the corner electrode connected to the series electrode chain. The touch panel having the homogenized electrode pattern of claim 9, wherein the b value is 0.3 to 2.0 millimeters (mm). A touch panel having a homogenized electrode pattern according to claim 9, wherein the a value is determined by a length Ymax of a central electrode segment of a center of the series electrode chain, the a value being equal to (Ymax-b) / X ² . The touch panel having the homogenized electrode pattern of claim 9, wherein the a value is determined by a length Ymax of one central electrode segment of the center of the series electrode chain minus 0.2 mm, and the a value is equal to ((Ymax-0.2)- b)) / X ² . A touch panel having a homogenized electrode pattern according to claim 9, wherein the discontinuous resistor is located in the gap, and the center of the discontinuous resistor corresponds to the center of the electrode. The touch panel of claim 9, wherein the width of the bottom end of the straight portion of the first homogenizing electrode is equal to the length of the second homogenizing electrode. The touch panel of claim 14 , wherein the width of the bottom end of the straight portion of the first homogenizing electrode is equal to the length of the second homogenizing electrode, and the second homogenizing electrode is The ratio of the length to the length of the spacing is 3:2.