CN201298221Y - Two-dimensional sensing structure of capacitive touch panel - Google Patents

Abstract

The utility model provides a capacitanc touch panel's two-dimensional sensing structure, through the special design of insulating layer pattern, can save its multichannel preparation procedure. The provided two-dimensional sensing structure comprises: a substrate, wherein a first surface of the substrate is provided with a plurality of first metal structures and a plurality of second metal structures; a dot-shaped insulating layer on the substrate and including a plurality of insulators, wherein each insulator corresponds to each first metal structure; and an electrode layer located on the dot-like insulating layer and composed of multiple sensing regions; wherein a first portion of the sensing region is electrically connected to each other in a first direction through the first metal structure, and a second portion of the sensing region is electrically connected to each other in a second direction.

Description

Two-dimensional sensing structure of capacitive touch panel

technical field

The utility model relates to a structure of a touch panel, in particular to a structure of a capacitive touch panel.

Background technique

Various current electronic devices have widely used touch technology as their input method. By this, users can read information or transmit information by lightly pressing the display panel with a finger or a stylus, which saves the need for traditional electronic devices. A button, pad or slider that must be configured.

Touch panels can be divided into resistive, capacitive, infrared, and ultrasonic based on their sensing principles. Infrared and ultrasonic touch panels are located on the X-axis and Y-axis sides of the screen. Set the infrared or ultrasonic emission source, and install the receiving source on the other side. When the user touches the screen, the movement of the infrared or ultrasonic wave will be disturbed. After measuring and confirming the disturbed position coordinates, the touch input is completed. The resistive touch panel is composed of upper and lower two sets of ITO (indium tin oxide) conductive films. After using pressure to make the upper and lower electrodes conductive, the controller detects the voltage change of the panel and calculates the position of the contact point for input. . As for the capacitive touch panel, it is made of transparent glass coated with oxidized metal on the surface. Voltage is supplied from its four corners and a uniform electric field is formed on the glass surface, using the capacitance generated by the electrostatic reaction between the user's finger and the electric field. Variations to detect input coordinates.

Capacitive touch panels have the advantages of dustproof, fireproof, scratch-resistant, and high resolution, but they are easily affected by static electricity or humidity and cause misjudgment of actions or touch positions; therefore, in order to improve the performance of capacitive touch panels Sensitivity is relatively difficult in structure and circuit design, so there is still a breakthrough in cost.

In US Patent No. 7,030,860 B1, a capacitive touch panel structure with high penetration and better sensitivity is disclosed, and it uses flexible substrate materials to construct sensors, so it can be integrated into various mat devices. Please refer to FIG. 1A, which illustrates the one-dimensional capacitive sensing structure 1 of the touch panel disclosed in the above-mentioned patent, which consists of a transparent substrate 10 and another transparent substrate 14 coated with a transparent conductive layer 16 through an adhesive layer 12. The effect is superimposed. If it is desired to form the two-dimensional capacitive sensing structure 100, two sets of transparent substrates 14A, 14B coated with transparent conductive layers 16A, 16B are used to separate them on the insulating layer in different directions (x-axis direction and y-axis direction). The two sides of 18 are stacked, as shown in Fig. 1B.

The capacitive touch panel composed of the above-mentioned sensing structure has a relatively complex multi-layer structure design, which requires five to ten layers of production procedures in the overall production, and requires the use of more than two substrates and one to three layers of comprehensiveness. The insulating layer does not conform to the current development trend of thin, light and small electronic devices. In addition, since the above-mentioned capacitive sensing structure uses ITO as the upper and lower conductive electrodes, its resistance value is relatively high, and the conductivity may be poor, thereby affecting the sensing sensitivity.

In order to overcome the above-mentioned deficiencies in the prior art, the applicant put forward this case "sensing structure of a touch panel" after careful experiments and researches and a persistent spirit. The utility model adopts a novel insulating layer design, which not only reduces the thickness of the touch panel, but also reduces the number of required substrates, and further simplifies the overall production process of the touch panel.

Contents of the invention

The first idea of the present invention is to provide a two-dimensional sensing structure of the capacitive touch panel, through the special design of the insulating layer pattern, it can save multiple production procedures.

The second idea of the present invention is to provide a two-dimensional sensing structure of the capacitive touch panel, which only needs one substrate and does not need multiple comprehensive insulating layers, so as to reduce the overall thickness of the capacitive touch panel.

The third idea of the present utility model is to provide a two-dimensional sensing structure of a capacitive touch panel, which uses metal electrodes and ITO (indium tin oxide) electrodes to replace the traditional upper and lower transparent electrodes to reduce the resistance of the sensing structure. value, thereby improving the sensitivity of the capacitive touch panel.

Another idea of the present invention is to provide a two-dimensional sensing structure of a capacitive touch panel, which utilizes a patterned overcoat to form a bridging connection between two electrode layers.

According to the idea of the present utility model, the provided two-dimensional sensing structure of the capacitive touch panel includes: a substrate with a plurality of first metal structures on a first surface; a first electrode layer located on On the substrate and composed of a plurality of first sensing regions, wherein the first sensing regions are electrically connected to each other in a first direction; a dot-shaped insulating layer, which is located on the first electrode layer and includes a plurality of insulators , wherein each of the insulators corresponds to each of the first sensing areas; and a second electrode layer, which is located on the point-shaped insulating layer and is composed of a plurality of second sensing areas, wherein the second sensing area The measuring areas are electrically connected to each other in a second direction.

According to the above idea, the two-dimensional sensing structure of the present invention further includes at least one first conductor connecting each of the first sensing regions in the first direction.

According to the above idea, the two-dimensional sensing structure of the present invention further includes at least one second conductor connecting each of the second sensing regions in the second direction.

According to the above idea, the two-dimensional sensing structure of the present invention further includes a protection layer located on the second electrode layer; and wherein the metal structure is exposed outside the protection layer. The protection layer includes a pattern layer on one side, so that it shows a frame. In a preferred embodiment, the protective layer includes an optical coating on one side thereof, and the optical coating is one of an anti-reflection layer, an anti-glare layer, an anti-static layer and combinations thereof.

According to the idea above, in the two-dimensional sensing structure of the present invention, the substrate forms a color filter layer and a black frame (Black Matrix, BM) layer on a second surface opposite to the first surface. one.

According to the idea above, the first sensing area and the second sensing area are respectively arranged in a first regular array and a second regular array, and the first sensing area and the second sensing area Available shapes include diamonds, rectangles, triangles, and combinations thereof.

According to the idea of the present utility model, the provided two-dimensional sensing structure of the capacitive touch panel includes: a substrate having a plurality of first conductive structures and a plurality of second conductive structures for external electrical connection a point-shaped insulating layer, which is located on the substrate and includes a plurality of insulators, wherein each of the insulators corresponds to each of the first conductive structures; and an electrode layer, which is located on the point-shaped insulating layer and consists of a plurality of inductance Composed of detection areas; wherein a first part of the sensing area is electrically connected to each other in a first direction through the first conductive structure.

According to the idea above, in the two-dimensional sensing structure of the present invention, a second portion of the sensing region is electrically connected to each other in a second direction through at least one conductor.

According to the idea above, the two-dimensional sensing structure of the present invention further includes a protection layer located on the second electrode layer, wherein the metal structure is exposed outside the protection layer. In a preferred conception, the protection layer includes a pattern layer on one side thereof, so that it shows a frame. In another preferred conception, the protection layer includes an optical coating on one side thereof, and the optical coating is one of an anti-reflection layer, an anti-glare layer, an anti-static layer and a combination thereof.

According to the above idea, the shapes of the first sensing region and the second sensing region in the two-dimensional sensing structure of the present invention include diamond shape, rectangle, triangle and combinations thereof.

According to the idea above, in the two-dimensional sensing structure of the present invention, the substrate forms a color filter layer and a black frame (Black Matrix, BM) layer on a second surface opposite to the first surface. one.

According to the idea of the present invention, the provided two-dimensional sensing structure of the capacitive touch panel includes: a substrate with a plurality of conductive structures on a first surface; a first electrode layer located on the first surface On the surface and composed of a plurality of sensing regions, wherein the sensing regions are electrically connected to each other in a first direction; an insulating protection layer, which covers the first electrode layer, wherein the insulating protection layer is patterned and a second electrode layer covering the insulating protection layer, wherein a part of the second electrode layer is connected to the exposed sensing region .

According to the idea above, the two-dimensional sensing structure of the present invention further includes a protection layer located on the second electrode layer, wherein the metal structure is exposed outside the protection layer. In a preferred embodiment, the protection layer includes a pattern layer on one side thereof, so that it shows a frame. In another preferred embodiment, the protective layer includes an optical coating on one side thereof, and the optical coating is one of an antireflection layer, an antiglare layer, an antistatic layer and combinations thereof.

According to the above idea, the shape of the sensing region in the two-dimensional sensing structure of the present invention includes diamond shape, rectangle, triangle and combinations thereof.

According to the above idea, the substrate in the two-dimensional sensing structure of the present invention forms one of a color filter layer and a black frame (Black Matrix, BM) layer on a second surface opposite to the first surface .

Description of drawings

FIG. 1A and FIG. 1B are schematic diagrams of the existing capacitive touch panel sensing structure;

2A to 2E are top views for illustrating a preferred embodiment of the capacitive touch panel sensing structure of the present invention;

2F is an enlarged schematic diagram for illustrating the detailed configuration of the sensing area of the capacitive touch panel sensing structure of the present invention;

FIG. 3 is an enlarged schematic diagram for illustrating another preferred embodiment of the detail configuration of the sensing area of the capacitive touch panel sensing structure of the present invention;

FIG. 4 is an enlarged schematic diagram for illustrating another preferred embodiment of the detail configuration of the sensing area of the sensing structure of the capacitive touch panel of the present invention;

5A to 5D illustrate another preferred embodiment of the sensing structure of the capacitive touch panel of the present invention;

Fig. 6 is a sectional view along line AA' shown in Fig. 5D, for illustrating the sensing structure of the capacitive touch panel of the present invention;

7 is a cross-sectional view for illustrating another preferred embodiment of the sensing structure of the capacitive touch panel of the present invention; and

FIG. 8 is a cross-sectional view for illustrating a preferred embodiment of the capacitive touch panel of the present invention.

Figure number:

1 Sensing structure

100, 2, 800 Two-dimensional sensing structure

8 Capacitive touch panel

10, 14, 14A, 14B, 20, 30, substrate

40, 50, 70, 80

12 Adhesive layer

16, 16A, 16B, Conductive layer

18 Insulation layer

211, 511 Contact piece

221, 221’, 321, 421, 721 sensing area

231, 33, 43, 531, 73 insulator

241, 241’, 341, 441, 541, 542 sensing area

25, 55, 75, 85 Protection layer

261, 262, 361, 362, 461, 462 Conductor

51 metal layer

512 bridge structure

54, 74 Electrode layer

732 holes

88 black frame layer

89 Color filter layer

850 pattern layer

855 Optical Coating

Detailed ways

A preferred embodiment of the present case will be described below in conjunction with the accompanying drawings. It should be noted that in the accompanying drawings, the drawing of each representative component is only for illustrative purposes, and it does not represent the actual size of the real component; in addition, in order to keep the drawing simple and facilitate a clear understanding of the innovation of this case, in Drawings of some existing components of a general touch panel have been omitted in the drawings.

2A to 2E are top views, which illustrate the first preferred embodiment of the capacitive touch panel sensing structure and its corresponding manufacturing method of the present invention.

See Figure 2A. Firstly, a metal layer is formed on the glass substrate 20 , and the metal layer is patterned to have a plurality of contact pads 211 for subsequent wiring connection to the outside of the panel.

A first electrode layer is provided on the metal layer 21, and the first electrode layer is composed of a plurality of sensing regions 221 arranged in a regular array and connected to each other along the x-axis direction; as shown in FIG. 2B . An insulating pattern layer is provided on the first electrode layer to replace the protective layer (overcoat, OC) in the existing sensing structure, wherein the pattern of the insulating pattern layer is defined as having a plurality of dot-like insulating bodies (insulating dots) 231, and its position Corresponding to each sensing region 221 of the first electrode layer respectively, as shown in FIG. 2C; The connection between the first electrode layer and the subsequent electrode layer is blocked.

Then, a second electrode layer is provided on the insulating pattern layer, which is also composed of a plurality of sensing regions 241 arranged in a regular array, as shown in Figure 2D; however, each sensing region 241 in the second electrode layer is connected to each other in the y-axis direction to provide conduction in the y-axis direction. Through the bridging effect of the first electrode layer with different connection directions of the sensing area and the connection of the second electrode layer, the conduction in the x direction and the y direction can be formed respectively through the sensing area 221 and the sensing area 241, that is, the connection is completed. The two-dimensional sensing structure 2 of the capacitive touch panel of the present invention.

Finally, a protective layer 25 is formed on the second electrode layer to protect the aforementioned electrode structure and connecting wires, wherein the metal contact piece 211 is exposed outside the protective layer 25, so as to form an electrical connection outside the sensing structure, as shown in FIG. 2E Show.

In this embodiment, the fully coated insulating layer structure in the existing sensing structure is replaced by partially distributed point-shaped insulators 231 , which not only saves materials, but also further reduces the overall thickness of the touch panel. In addition, in the present utility model, the two-dimensional sensing structure may also include a plurality of conductors, wherein at least two conductors 261, 262 are connected in series between the sensing regions 241, so as to ensure the two-dimensional sensing structure of the present utility model. The detection structure will not be disconnected due to a single bridge fault, as shown in the enlarged view of the sensing area in Figure 2F.

According to the present invention, in addition to the diamond shape shown in FIG. 2F , the sensing region can also be changed in shape according to the actual configuration, so as to enhance the sensitivity of the sensing structure. For example, the first electrode layer and the second electrode layer can be respectively an array formed by triangular units 321 and 341 formed on the substrate 30 (as shown in FIG. 3 ), or formed by rectangular units formed on the substrate 40. 421 and 441 constitute an array; two adjacent units in one electrode layer are connected to each other in the x-axis direction through two conductors 362, and two adjacent units in the other electrode layer are connected to each other through two conductors 361 In the y-axis direction, units of different electrode layers (ie unit 321 and unit 341 ) are electrically insulated from each other by the function of the insulator 33 . Similarly, in the structure shown in FIG. 4 , each two adjacent units 421 in the electrode layer are connected to each other in the x-axis direction through two conductors 462 , and two adjacent units 441 in the other electrode layer are connected to each other through two conductors 462 . The bodies 461 are connected to each other in the y-axis direction. Compared with the traditional touch panel, such configuration can make the capacitive touch panel have better sensitivity under a given sensing area.

Please refer to FIG. 5A to FIG. 5D and FIG. 6, which illustrate the second preferred embodiment of the sensing structure of the capacitive touch panel of the present invention and its corresponding manufacturing method, wherein FIG. 6 is along the section line AA in FIG. 5D 'shown in cross section.

As shown in FIG. 5A, firstly, a layer of metal layer 51 is formed on a glass substrate 50, and the metal layer is patterned into the form of contact pieces and bridge structures; in other words, the glass substrate 50 has a plurality of The metal contact piece 511 and the metal bridge structure 512 , wherein the metal contact piece 511 is used as subsequent wiring to connect to the outside, and the metal bridge structure 512 arranged along the x-axis direction is used to connect the sensing electrodes along the x-axis direction.

An insulating pattern layer is provided on the metal layer 51 to replace the overcoat (OC) in the conventional sensing structure. The pattern of the insulating pattern layer is defined as having a plurality of dot-shaped insulators (insulating dots) 531, and its position corresponds to each metal bridge structure 512; different from the previous embodiment, in this example, each dot-shaped insulator 531 is respectively covered on Each metal bridging structure 512 is shown in FIG. 5B .

Then, provide an electrode layer 54 on the insulating pattern layer 53, as shown in Figure 5C; The electrode layer formed by regions 541, 542. In the present invention, the configuration of the electrode layer 54 is aligned so that the sensing regions 541 are electrically connected to each other in the x-axis direction through the metal bridge structure 512, and they are electrically connected to each other in the direction of the x-axis through the effect of the insulating pattern layer 53. No electrical contact is formed between the sensing regions 542 in the y-axis direction. In this way, the sensing regions respectively connected to the x-axis direction and the y-axis direction can be formed simultaneously by a single procedure, and the two-dimensional sensing structure 5 of the capacitive touch panel of the present invention is completed.

Finally, a protective layer 55 is formed on the electrode layer 54 to protect the aforementioned electrode structure and connecting wires, wherein the metal contact piece 511 is exposed outside the protective layer 55, so as to form an electrical connection outside the sensing structure, as shown in FIG. 5D and FIG. 6.

Please refer to FIG. 7 , which is a cross-sectional view for illustrating a third preferred embodiment of the capacitive touch panel sensing structure of the present invention. Similarly, the two-dimensional sensing structure of the present invention includes a first electrode layer on the glass substrate 70, which is composed of sensing regions 711 arranged in a regular array; an insulating pattern layer is provided on the first electrode layer 73 to replace the protective layer (overcoat, OC) in the existing sensing structure, wherein the pattern of the insulating pattern layer is defined as having a plurality of holes (pin holes) 732, whose positions are respectively connected with each sensing region 711 of the first electrode layer Correspondingly, each sensing region 711 is exposed. There is a second electrode layer on the insulating pattern layer, which covers the insulating pattern layer 73, and is partially connected to the sensing region 711 of the first electrode layer through the hole 732 on the insulating pattern layer 73; A protective layer 75 is formed on the layer to protect the aforementioned electrode structure. Similarly, through the bridging effect of the first electrode layer with different connection directions of the sensing area and the connection of the second electrode layer, the conduction in the x direction and the y direction can be formed at the same time, and the capacitive touch panel of the present invention is completed. two-dimensional sensing structure.

According to the present invention, a traditional metal electrode layer can be used as the aforementioned electrode layer, an ITO transparent electrode can also be used as the electrode layer, or a combination of both can be used in the sensing structure of the present invention.

In addition to the above-mentioned embodiments, preferably, as shown in FIG. 8 , it illustrates a preferred implementation manner of the capacitive touch panel 8 of the present invention. Alignment can be performed by using the sensing area of the electrode layer as an alignment mark (mark), or by existing pre-alignment alignment, so as to be used on another substrate on which the two-dimensional sensing structure 800 is formed. A color filter layer (color filter, CF) 89 and a black frame (black matrix, BM) layer 88 are simultaneously formed on one surface. In addition to the embodiments of the present invention, such electrode/CF layer or electrode/BM layer double-sided structure can also be applied to the existing touch panel structure, so as to reduce the amount of substrate used, thereby achieving the purpose of reducing the thickness of the panel.

Also as shown in FIG. 8, in a preferred embodiment, the two-dimensional sensing structure 800 includes a protective layer 85 having a pattern layer 850, and the pattern layer 850 makes the two-dimensional sensing structure of the present utility model show a frame ; The protective layer 85 can also be optically treated (for example, coated with an optical coating 855), so that it exhibits desired optical properties, such as anti-reflection, anti-glare, anti-static and so on.

In the present invention, the pattern layer 850 and the optical layer 855 can be pre-formed on the protective layer 85 to be attached to the two-dimensional sensing structure 800 as a whole; they can also be formed on the protective layer 85 separately according to the actual configuration requirements. In order to make the two-dimensional sensing structure 800 have the required light-like properties.

In the present utility model, the insulating layer structure (full insulating layers) in the existing sensing structure is replaced by locally distributed point-like insulators (insulating dots), which can effectively reduce the overall thickness of the sensing structure by up to 0.5 to 3 μm. At the same time, compared with the production process of the existing touch panel sensing structure, the alignment effect of the point-shaped insulator and the metal bridge structure proposed by the utility model can effectively reduce the number of steps required for the production process and simplify the process. Overall structure of the 2D sensing structure. In addition, since the two-dimensional sensing structure of the present invention only needs one substrate to complete, and the use of ITO electrodes in conjunction with metal electrodes on the substrate can greatly reduce the overall resistance of the sensing structure and facilitate touch sensing. Increased control panel sensitivity.

To sum up, the two-dimensional sensing structure of the capacitive touch panel of the present invention has the advantages of simple structure, simplified manufacturing process, thin thickness and low resistance, and is indeed in line with the current development trend of light, thin and short portable electronic devices; Therefore, this case is actually a novel, progressive, industrially practicable and competitive new type, which has great development value.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. In the protection scope of the invention, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims (28)

1. A two-dimensional sensing structure of a capacitive touch panel, characterized in that the two-dimensional sensing structure comprises: A substrate having a plurality of first metal structures on a first surface of the substrate; a first electrode layer, which is located on the substrate and is composed of a plurality of first sensing regions, wherein the first sensing regions are electrically connected to each other in a first direction; a dot-shaped insulating layer, which is located on the first electrode layer and includes a plurality of insulators, wherein each of the insulators corresponds to each of the first sensing regions; and A second electrode layer is located on the dot-shaped insulating layer and is composed of a plurality of second sensing regions, wherein the second sensing regions are electrically connected to each other in a second direction. 2. The two-dimensional sensing structure of a capacitive touch panel according to claim 1, wherein the two-dimensional sensing structure further comprises at least one first conductor connected to each of the first sensing regions in the first direction described. 3. The two-dimensional sensing structure of a capacitive touch panel according to claim 2, wherein the two-dimensional sensing structure further comprises at least one second conductor connected to each of the second sensing regions in the second direction described. 4 . The two-dimensional sensing structure of a capacitive touch panel as claimed in claim 1 , further comprising a protection layer located on the second electrode layer. 5 . The two-dimensional sensing structure of a capacitive touch panel as claimed in claim 4 , wherein the protection layer includes a pattern layer on one side thereof, so that a border appears. 6 . 6 . The two-dimensional sensing structure of a capacitive touch panel according to claim 5 , wherein the pattern layer is pre-formed on the protective layer. 7. The two-dimensional sensing structure of a capacitive touch panel according to claim 4, wherein the protective layer includes an optical coating on one side thereof, and the optical coating is an anti-reflection layer, One of an antiglare layer, an antistatic layer and a combination thereof. 8 . The two-dimensional sensing structure of a capacitive touch panel according to claim 7 , wherein the optical coating is pre-formed on the protective layer. 9. The two-dimensional sensing structure of a capacitive touch panel according to claim 1, wherein a color filter layer is formed on a second surface opposite to the first surface of the substrate Layer one of them with a black frame. 10. The two-dimensional sensing structure of a capacitive touch panel according to claim 1, wherein the first sensing area and the second sensing area are respectively arranged as a first regular array and a The second regular array. 11. The two-dimensional sensing structure of a capacitive touch panel according to claim 1, wherein the shapes of the first sensing area and the second sensing area include diamond, rectangle, triangle and its combination. 12. A two-dimensional sensing structure of a capacitive touch panel, characterized in that the two-dimensional sensing structure comprises: A substrate, the substrate has a plurality of first conductive structures and a plurality of second conductive structures for external electrical connection; a dot-shaped insulating layer, which is located on the substrate and includes a plurality of insulators, wherein each of the insulators corresponds to each of the first conductive structures; and an electrode layer, which is located on the dot-shaped insulating layer and is composed of a plurality of sensing regions; Wherein a first part of the sensing area is electrically connected to each other in a first direction through the first conductive structure. 13. The two-dimensional sensing structure of a capacitive touch panel according to claim 12, wherein a second portion of the sensing region is electrically connected to each other in a second direction through at least one conductor . 14 . The two-dimensional sensing structure of a capacitive touch panel according to claim 13 , further comprising a protection layer located on the electrode layer. 15 . The two-dimensional sensing structure of a capacitive touch panel as claimed in claim 14 , wherein the protection layer includes a pattern layer on one side thereof, so that a border appears. 16. The two-dimensional sensing structure of a capacitive touch panel according to claim 15, wherein the pattern layer is pre-formed on the protection layer. 17. The two-dimensional sensing structure of a capacitive touch panel as claimed in claim 14, wherein the protective layer includes an optical coating on one side thereof, and the optical coating is an anti-reflection layer, One of an antiglare layer, an antistatic layer and a combination thereof. 18. The two-dimensional sensing structure of a capacitive touch panel as claimed in claim 17, wherein the optical coating is pre-formed on the protective layer. 19. The two-dimensional sensing structure of a capacitive touch panel according to claim 12, wherein the shapes of the first sensing area and the second sensing area include diamond, rectangle, triangle and its combination. 20. The two-dimensional sensing structure of a capacitive touch panel according to claim 12, wherein a color filter layer is formed on a second surface opposite to the first surface of the substrate Layer one of them with a black frame. 21. A two-dimensional sensing structure of a capacitive touch panel, characterized in that the two-dimensional sensing structure comprises: A substrate having a plurality of conductive structures on a first surface of the substrate; a first electrode layer, which is located on the first surface and is composed of a plurality of sensing regions, wherein the sensing regions are electrically connected to each other in a first direction; an insulating protective layer covering the first electrode layer, wherein the insulating protective layer is patterned to expose a portion of the sensing region on the first electrode layer; and A second electrode layer covering the insulating protective layer, wherein a part of the second electrode layer is connected to the exposed sensing region. 22 . The two-dimensional sensing structure of a capacitive touch panel according to claim 21 , further comprising a protection layer located on the second electrode layer. 23 . The two-dimensional sensing structure of a capacitive touch panel as claimed in claim 22 , wherein the protective layer includes a pattern layer on one side thereof, so that a border appears. 24 . 24. The two-dimensional sensing structure of a capacitive touch panel as claimed in claim 23, wherein the pattern layer is pre-formed on the protection layer. 25. The two-dimensional sensing structure of a capacitive touch panel as claimed in claim 22, wherein the protective layer includes an optical coating on one side thereof, and the optical coating is an anti-reflection layer, One of an antiglare layer, an antistatic layer and a combination thereof. 26. The two-dimensional sensing structure of a capacitive touch panel as claimed in claim 25, wherein the optical coating is pre-formed on the protective layer. 27. The two-dimensional sensing structure of a capacitive touch panel as claimed in claim 22, wherein the shape of the sensing area comprises a diamond shape, a rectangle, a triangle and combinations thereof. 28. The two-dimensional sensing structure of a capacitive touch panel according to claim 22, wherein a color filter layer is formed on a second surface opposite to the first surface of the substrate Layer one of them with a black frame.

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