CN201955764U - Touch Sensing Device - Google Patents

Abstract

The utility model relates to a touch-control sensing device, this touch-control sensing device includes: a substrate; a shielding layer disposed on the substrate; a touch sensing component; and the insulating layer is formed between the shielding layer and the touch sensing component and isolates the shielding layer from the touch sensing component. The utility model discloses the insulating layer sets up between shielding layer and touch-control subassembly, and isolated shielding layer and touch-control sensing subassembly insulate to when shielding the layer and having relatively poor insulating property, prevent to cause the short circuit phenomenon to take place because of shielding the electric property intercommunication that produces between layer and the touch-control sensing subassembly, improve touch-control sensing ability, reach high touch-control sensing ability, guarantee the quality of touch-control operation.

Description

Touch Sensing Device

【Technical field】

The utility model provides a touch sensing device, in particular to a touch sensing device.

【Background technique】

In recent years, touch sensing technology has been gradually and widely used in various electronic devices in daily life as input interfaces of many electronic devices, for example, as input interfaces of electronic devices such as monitors, mobile phones or game machines. This technology is to press or touch the touch sensing device with a finger or a stylus, so that data can be accessed or accessed without other traditional types of input interfaces (such as buttons, keyboards, or joysticks). transmission.

The above-mentioned touch sensing device is composed of a display panel and a touch sensing panel, wherein the touch sensing panel is bonded to the display panel, that is to say, in order to make the display panel also have a touch sensing function, the touch sensing The measuring panel must be attached to the surface of the display panel by means of sticking. The touch sensing panel is composed of a protective cover glass and a supporting sensing substrate covered by the cover glass. However, such an architecture is complex in design due to the internal multi-layer stacking structure and cannot meet the thin and light requirements of today's electronic devices.

At present, in order to solve the above problems, there is a thinner touch sensing panel that uses only one cover glass to achieve the above dual functions of protection and support, such as the cover glass 10 shown in FIG. 1 . In FIG. 1 , the thinned touch sensing panel further includes a black ink layer 20 coated on the peripheral area of the upper cover glass 10 , and a touch sensing element 30 formed under the black ink layer 20 . The touch sensing component 30 includes a sensing electrode 302 and a conductive circuit 304, wherein the sensing electrode 302 senses the touch of an external user to generate a sensing signal, and the conductive circuit 304 transmits the sensing signal to the processor (not shown in the figure) ), so that the processor can further calculate the touch position of the external touch. In addition, in order to beautify the appearance of the thin touch sensor panel, the peripheral area of the upper cover glass 10 coated with the black ink layer 20 will correspond to the location of the conductive circuit 304, so that the black ink layer 20 can prevent the user from noticing The existence of the conductive circuit 304 further achieves a better visual effect.

Although the thickness of the above-mentioned thinned touch sensing panel will be thinner due to the omission of the sensing substrate, there is still a problem that will affect the sensing accuracy, that is, if the black ink layer 20 has poor insulation properties, the There will be electrical conduction between the sensing electrodes 302 and the black ink layer 20, and the electrical conduction will cause a short circuit between the sensing electrodes 302, thereby generating inaccurate or wrong sensing signals and affecting Touch operation.

Therefore, there is an urgent need for a touch sensing device that will not affect the touch operation due to poor insulation of the black ink layer.

【Content of utility model】

The purpose of the utility model is to provide a touch sensing device that can still achieve high touch sensing capability under the condition of poor insulation of the black ink layer.

A touch sensing device, comprising:

Substrate;

a shielding layer disposed on the substrate;

touch sensing components; and

The insulating layer is formed between the shielding layer and the touch sensing component, and isolates the shielding layer and the touch sensing component.

In one embodiment, the touch sensing component includes a sensing electrode layer and a conductive circuit.

In one embodiment, the sensing electrode layer is a single-layer single-axis structure, including more than two sensing electrodes, the sensing electrodes are set apart from each other and coupled to the corresponding conductive lines for transmitting the first axis. to the signal and the second axis signal.

In one embodiment, the sensing electrode layer is a single-layer biaxial structure or a double-layer biaxial structure.

In one embodiment, the shielding layer is formed on the peripheral area of the substrate to shield the conductive circuit.

In one embodiment, the insulating layer is fully or partially formed between the shielding layer and the touch sensing element.

In one embodiment, the partially formed insulating layer has the same or larger size and the same shape as the masking layer.

A touch sensing device, comprising:

a first touch sensing component disposed on one of the surfaces of the substrate;

a second touch sensing component formed on a different layer from the first touch sensing component;

masking layer;

a first insulating layer formed between the first touch sensing element and the shielding layer; and

The second insulating layer is formed between the second touch sensing component and the shielding layer.

In one embodiment, the first touch sensing component includes a first sensing electrode layer and a first conductive circuit, and the second touch sensing component includes a second sensing electrode layer and a second conductive circuit.

In one embodiment, the first sensing electrode layer and the second sensing electrode layer belong to different layers in position, respectively representing the directions of the X-axis and the Y-axis to respectively sense and transmit X-axis touch sensing signals and Y-axis touch sensing signal.

In one embodiment, the first insulating layer is fully or partially formed between the shielding layer and the first touch sensing element, and the second insulating layer is fully or partially formed between the shielding layer and the second between touch sensing components.

In one embodiment, the partially formed first insulating layer or the second insulating layer has the same or larger size and the same shape as the masking layer.

A touch sensing device, comprising:

a shielding layer disposed on one of the surfaces of the substrate;

a first touch sensing component;

a second touch sensing component formed on a different layer from the first touch sensing component;

a first insulating layer formed between the first touch sensing element and the shielding layer; and

The second insulating layer is formed between the first touch sensing component and the second touch sensing component.

In one embodiment, the first touch sensing component includes a first sensing electrode layer and a first conductive circuit, and the second touch sensing component includes a second sensing electrode layer and a second conductive circuit.

In one embodiment, the first sensing electrode layer and the second sensing electrode layer belong to different layers in position, respectively representing the directions of the X-axis and the Y-axis, and are used for sensing and transmitting X-axis touch sensing. Measurement signal and Y-axis touch sensing signal.

In one embodiment, the shielding layer is formed on the peripheral area of the substrate for shielding the second conductive circuit and the first conductive circuit.

In one embodiment, the first insulating layer is fully or partially formed between the shielding layer and the first touch sensing component, and the second insulating layer is fully formed between the first touch sensing component and the first touch sensing component. between the second touch sensing components.

In one embodiment, the partially formed first insulating layer has the same or larger size and the same shape as the masking layer.

A touch sensing device, comprising:

Touch sensing components;

a shielding layer, shielding part of the touch sensing component; and

an insulating layer formed between the shielding layer and the touch sensing component;

Wherein, the shielding layer, the touch sensing component and the insulating layer are integrally formed on the substrate and form an integrated component.

In one embodiment, the touch sensing device is disposed on the upper edge of the display device.

In one embodiment, the substrate serves as the upper cover substrate and the supporting substrate of the integrated component at the same time.

In one embodiment, the shielding layer, the touch sensing element and the insulating layer are integrally formed on the same surface of the substrate, and the other surface of the substrate is used for receiving physical contact.

In the above-mentioned touch sensing device, the insulating layer is disposed between the shielding layer and the touch sensing component to isolate the shielding layer from the touch sensing component for insulation, so that when the shielding layer has poor insulation properties, the The electrical connection between the touch sensing components causes a short circuit, which improves the touch sensing capability, achieves a high touch sensing capability, and ensures the quality of the touch operation.

【Description of drawings】

FIG. 1 is an exploded schematic diagram of a current touch sensing panel;

2A is a schematic top view of the first embodiment of the touch sensing device of the present invention;

Fig. 2B is a Z-Z' cross-sectional schematic view of the touch sensing device shown in Fig. 2A;

3A-3B are exploded schematic diagrams of the second embodiment of the touch sensing device of the present invention;

4A-4C are exploded schematic diagrams of the third embodiment of the touch sensing device of the present invention;

5A-5B are exploded schematic diagrams of a fourth embodiment of the touch sensing device of the present invention.

【Detailed ways】

Some embodiments of the present invention are described in detail as follows. However, the invention can be broadly practiced in other embodiments than this detailed description. That is to say, the scope of the present invention is not limited by the proposed embodiments, but by the claims of the present invention. Secondly, when each component or structure in the diagram of the embodiment of the utility model is described as a single component or structure, it should not be regarded as a limited cognition, that is, when the following description does not particularly emphasize the limitation on the number of the utility model The spirit and scope of application can be extended to structures and methods in which multiple components or structures coexist. Furthermore, in this specification, the different parts of each component are not completely drawn according to the scale, and some scales are exaggerated or simplified compared with other relevant scales, so as to provide a clearer description and enhance the understanding of the utility model . However, the existing techniques used in the present utility model are only cited here to help explain the present utility model.

FIG. 2A is a schematic top view of the first embodiment of the touch sensing device of the present invention, and FIG. 2B is a Z-Z' cross-sectional schematic view of the touch sensing device shown in FIG. 2A . . According to FIGS. 2A and 2B , the touch sensing device 100 includes a substrate 200 and an integrated component 300 . In order to meet the thin design requirements, the substrate 200 plays two roles at the same time, that is, simultaneously serves as the upper cover substrate and the supporting substrate of the integrated component 300 . The integrated component 300 includes a shielding layer 310, a touch sensing element 320 and an insulating layer 330, wherein the shielding layer 310 shields part of the touch sensing element 320 located in the peripheral area of the substrate 200, and the insulating layer 330 is formed between the shielding layer 310 and the touch sensing element. Between the sensing components 320 , the shielding layer 310 and the touch sensing component 320 are isolated. In addition, the integrated component 300 is formed on one surface of the substrate 200 , that is, the shielding layer 310 , the touch sensing component 320 and the insulating layer 330 can be integrally formed on the substrate 200 , especially formed on the same side of the substrate 200 . Furthermore, the touch sensing device 100 shown in FIG. 2B may be disposed above a display device 400 , and the display device 400 may be, for example, LCD, CRT, OLED or other types of display devices.

Since the substrate 200 can be made of a transparent material, such as glass or a plasticized material, and the integrated component 300 is substantially transparent except for the area formed by the shielding layer 310, the user can The content displayed by the display device 400 is viewed from above the other side of the substrate 200 relative to the integrated assembly 300 . In addition, due to the formation of the touch sensing component 320, the touch sensing signal is generated by physical contact, such as the contact of the user’s finger or a stylus, that is, the touch sensing component 320 Approaching or touching the top of the substrate 200 causes a change in the touch sensing signal. The touch signal can be capacitance, voltage or current. After the touch, the touch sensing signal will be sent to the processor (not shown in the figure) to be further calculated the touch position of the physical contact.

The first embodiment described in FIG. 2A and FIG. 2B is only a comprehensive introduction to the touch sensing device 100 provided by the present invention and its relationship with the display device 400. The following will be more detailed in other implementations. An example is used to introduce the touch sensing device 100 provided by the present invention.

3A is an exploded schematic view of the second embodiment of the touch sensing device of the present invention, especially the first preferred example of the second embodiment of the present invention. The touch sensing device 100 shown in FIG. 3A includes: a substrate 200, a shielding layer 310, a touch sensing component 320, and an insulating layer 330a, wherein the shielding layer 310 is disposed on the substrate 200, and the insulating layer 330a is formed on the shielding layer. Between 310 and the touch sensing component 320 , the shielding layer 310 and the touch sensing component 320 are isolated.

The touch sensing component 320 includes a sensing electrode layer 322 and a conductive line 324, wherein the sensing electrode layer 322 includes more than two sensing electrodes 3221, and the sensing electrodes 3221 are separated from each other and coupled to corresponding conductive lines 324, to transmit the first axis signal (such as the X axis signal) and the second axis signal (such as the Y axis signal). The shielding layer 310 is formed on the peripheral area of the substrate 200 to shield the conductive circuit 324, and the insulating layer 330a is of a fully formed type (for example, a complete plane) and is disposed between the shielding layer 310 and the touch sensing element 320. When the shielding layer 310 has poor insulation properties, it can prevent the short circuit between the sensing electrodes 3221 caused by the electrical connection between the shielding layer 310 and the touch sensing component 320 .

3B is an exploded schematic view of the second embodiment of the touch sensing device of the present invention, especially the second preferred example of the second embodiment of the present invention. The structure shown in FIG. 3B is similar to the structure shown in FIG. 3A. The difference is that the insulating layer 330b shown in FIG. between the measurement components 320 and have the same or slightly larger size and shape as the shielding layer 310 .

In addition, in other embodiments, the touch sensing component 320 does not need to be limited to the single-layer single-axis structure of the sensing electrode layer 322 shown in FIG. 3A and FIG. A single-layer biaxial structure or a double-layer biaxial structure, that is, the two columns of sensing electrodes can be alternately spaced and formed on a single layer surface, or can be vertically spaced and formed on two layers of surfaces separately, but they are all separately It represents the X-axis and the Y-axis, and can transmit the X-axis touch sensing signal and the Y-axis touch sensing signal respectively. In addition, the conductive circuit 324 can be made of metal or other materials, but it is not limited to the example used in the second embodiment.

4A-4C are exploded schematic diagrams of a third embodiment of the touch sensing device of the present invention. The touch sensing device 100 includes a first touch sensing component 520 , a second touch sensing component 540 , a substrate 200 , a shielding layer 310 , a first insulating layer 530 a and a second insulating layer 530 b. Wherein, the first touch sensing component 520 can be disposed on one surface of the substrate 200 .

In the third embodiment, the first touch sensing component 520 includes a first sensing electrode layer 522 and a first conductive line 524, and the second touch sensing component 540 includes a second sensing electrode layer 542 and a second conductive line. Line 544. The first sensing electrode layer 522 and the second sensing electrode layer 542 belong to different layers in position, representing the X-axis and Y-axis respectively, and can respectively sense and transmit X-axis touch sensing signals and Y-axis touch sensing signals. control sensing signal. The first insulating layer 530 a is interposed between the first touch sensing element 520 and the shielding layer 310 , and the second insulating layer 530 b is interposed between the second touch sensing element 540 and the shielding layer 310 .

4A, FIG. 4B and FIG. 4C describe the differences in the structure of the first insulating layer 530a and the second insulating layer 530b as follows: the first insulating layer 530a shown in FIG. Between a touch-sensing element 520 and the shielding layer 310 , the second insulating layer 530 b is also fully formed in the visible area, and is disposed between the second touch-sensing element 540 and the shielding layer 310 . The first insulating layer 530a shown in FIG. 4B is a partially formed type, and is disposed between the first touch sensing component 520 and the shielding layer 310, but the area of the first insulating layer 530a is sufficient to isolate the first touch sensing component. 520 and the shielding layer 310. The second insulating layer 530 b is of a fully formed type and is disposed between the second touch sensing element 540 and the shielding layer 310 . The first insulating layer 530a shown in FIG. 4C is a fully formed type and is disposed between the first touch sensing element 520 and the shielding layer 310, while the second insulating layer 530b is a partially formed type and is disposed on the second touch sensing element. Between the measuring component 540 and the shielding layer 310. However, the area of the second insulating layer 530b is sufficient to isolate the second touch sensing element 540 from the shielding layer 310 .

In the third embodiment, the first insulating layer 530 a or the second insulating layer 530 b belonging to the partially formed type has the same or slightly larger size and the same shape as the shielding layer 310 .

5A-5B are exploded schematic diagrams of a fourth embodiment of the touch sensing device of the present invention. Wherein, the components used in the fourth embodiment are similar to those of the third embodiment, and the main difference lies in the relative position of each component. The touch sensing device 100 shown in FIGS. 5A-5B includes a first touch sensing component 520, a second touch sensing component 540, a substrate 200, a shielding layer 310, a first insulating layer 530a and a second insulating layer. 530b. The shielding layer 310 is provided on one surface of the substrate 200, the second touch sensing element 540 and the first touch sensing element 520 are formed on different layers, and the first insulating layer 530a is formed on the first touch sensing between the component 520 and the shielding layer 310 , and the second insulating layer 530 b is formed between the first touch sensing component 520 and the second touch sensing component 540 .

In addition, in particular, the shielding layer 310 in the fourth embodiment is formed on the peripheral area of the substrate 200 to shield the second conductive circuit 544 and the first conductive circuit 524 .

The differences in the structure of the first insulating layer 530a and the second insulating layer 530b in FIGS. 5A and 5B are described as follows: the first insulating layer 530a shown in FIG. 530b also adopts the full-scale formation type in the viewing area. The first insulating layer 530a shown in FIG. 5B is a partially formed type, that is, a hollow design, but the area of the first insulating layer 530a is sufficient to isolate the first touch sensing element 520 from the shielding layer 310, while the second insulating layer 530b is a fully formed type.

The insulating layer mentioned in the above-mentioned embodiments, such as the insulating layer 330 shown in FIG. 2A, the insulating layer 330a shown in FIG. 3A, the insulating layer 330b shown in FIG. The first insulating layer 530a shown in Figure 5B and the second insulating layer 530b shown in Figures 4A to 4C and Figures 5A to 5B can be selected from organic materials or inorganic materials, wherein the organic materials can be made of acrylic Polymethyacrylate or other materials, and the inorganic material can be made of silicon dioxide (SiO2) or other materials. In addition, the insulating layer mentioned in the above-mentioned embodiments, if it is a fully formed type , it can be a complete plane, and if it is a partially formed type, it can be a plane shape with an opening in the middle. Furthermore, the shielding layer 310 mentioned in the above-mentioned embodiments may be made of opaque ink material, and has various colors, including black, white, blue, and so on.

In the above-mentioned touch sensing device, the insulating layer is arranged between the shielding layer and the touch sensing component, and isolates the shielding layer from the touch sensing component for insulation, so that when the shielding layer has poor insulation properties, the The short circuit occurs due to the electrical connection with the touch sensing component.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (22)

1. A touch sensing device, characterized in that, comprising: Substrate; a shielding layer disposed on the substrate; touch sensing components; and The insulating layer is formed between the shielding layer and the touch sensing component, and isolates the shielding layer and the touch sensing component. 2. The touch sensing device according to claim 1, wherein the touch sensing component comprises a sensing electrode layer and a conductive circuit. 3. The touch sensing device according to claim 2, wherein the sensing electrode layer is a single-layer uniaxial structure, comprising more than two sensing electrodes, the sensing electrodes are set apart from each other and coupled to The corresponding conductive circuit is used to transmit the first axis signal and the second axis signal. 4. The touch sensing device according to claim 2, wherein the sensing electrode layer is a single-layer biaxial structure or a double-layer biaxial structure. 5 . The touch sensing device according to claim 2 , wherein the shielding layer is formed on a peripheral area of the substrate to shield the conductive circuit. 6 . The touch sensing device according to claim 1 , wherein the insulating layer is fully or partially formed between the shielding layer and the touch sensing component. 7 . The touch sensing device according to claim 6 , wherein the partially formed insulating layer has the same or larger size and the same shape as the shielding layer. 8. A touch sensing device, characterized in that, comprising: Substrate; a first touch sensing component disposed on one of the surfaces of the substrate; a second touch sensing component formed on a different layer from the first touch sensing component; masking layer; a first insulating layer formed between the first touch sensing element and the shielding layer; and The second insulating layer is formed between the second touch sensing component and the shielding layer. 9. The touch-sensing device according to claim 8, wherein the first touch-sensing component comprises a first sensing electrode layer and a first conductive circuit, and the second touch-sensing component comprises a first The second sensing electrode layer and the second conductive circuit. 10 . The touch sensing device according to claim 9 , wherein the first sensing electrode layer and the second sensing electrode layer belong to different layers in position, respectively representing the directions of the X-axis and the Y-axis. Sensing and transmitting X-axis touch sensing signals and Y-axis touch sensing signals respectively. 11. The touch sensing device according to claim 8, wherein the first insulating layer is fully or partially formed between the shielding layer and the first touch sensing element, and the second insulating layer A layer is fully or partially formed between the shielding layer and the second touch sensing component. 12. The touch sensing device according to claim 11, wherein the partially formed first insulating layer or the second insulating layer has the same or larger size and the same shape as the shielding layer . 13. A touch sensing device, comprising: Substrate; a shielding layer disposed on one of the surfaces of the substrate; a first touch sensing component; a second touch sensing component formed on a different layer from the first touch sensing component; a first insulating layer formed between the first touch sensing element and the shielding layer; and The second insulating layer is formed between the first touch sensing component and the second touch sensing component. 14. The touch sensing device according to claim 13, wherein the first touch sensing component comprises a first sensing electrode layer and a first conductive circuit, and the second touch sensing component comprises The second sensing electrode layer and the second conductive circuit. 15. The touch sensing device according to claim 14, wherein the first sensing electrode layer and the second sensing electrode layer belong to different layers in position, respectively representing the X-axis and Y-axis directions , for respectively sensing and transmitting the X-axis touch sensing signal and the Y-axis touch sensing signal. 16 . The touch sensing device according to claim 14 , wherein the shielding layer is formed on a peripheral area of the substrate to shield the second conductive circuit and the first conductive circuit. 17. The touch sensing device according to claim 13, wherein the first insulating layer is fully or partially formed between the shielding layer and the first touch sensing element, and the second insulating layer It is fully formed between the first touch sensing component and the second touch sensing component. 18 . The touch sensing device according to claim 17 , wherein the partially formed first insulating layer has the same or larger size and the same shape as the shielding layer. 19. A touch sensing device, comprising: Touch sensing components; a shielding layer, shielding part of the touch sensing component; and an insulating layer formed between the shielding layer and the touch sensing component; Wherein, the shielding layer, the touch sensing component and the insulating layer are integrally formed on the substrate and form an integrated component. 20. The touch sensing device according to claim 19, wherein the touch sensing device is disposed on an upper edge of a display device. 21 . The touch sensing device according to claim 19 , wherein the substrate is simultaneously used as a top cover substrate and a supporting substrate of the integrated component. 22. The touch sensing device according to claim 19, wherein the shielding layer, the touch sensing element and the insulating layer are integrally formed on the same surface of the substrate, and the other surface of the substrate Used to accept physical contact.

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