Touch panel and touch device

The invention provides a touch panel and a touch device. The touch panel comprises: a substrate; a plurality of first electrode chains and second electrode chains on the substrate, disposed in a repeated and cross-insulating manner; the first electrode chain comprising a plurality of first electrodes, and the second electrode chain comprising a plurality of second electrodes; wherein the first electrode comprising a first sub-electrode and a second sub-electrode, electrically connected to each other, the first sub-electrode and the second sub-electrode being disposed spaced apart, and the second electrode surrounding both the first sub-electrode and the second sub-electrode. The touch panel of the invention provides higher touch detection accuracy.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a National Phase of International Application Number PCT/CN2018/094655, filed Jul. 5, 2018, and claims the priority of Chinese Patent Application No. CN201810537607.1, entitled “Touch Panel and Touch Device”, filed on May 30, 2018, the disclosure of which is incorporated herein by reference in its entirety.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to the field of touch function, and in particular to the field of touch panel and touch device.

2. The Related Arts

With the development of display technology, the organic light-emitting diode (OLED) panels have been adopted by more and more electronic products, and flexible OLEDs have attracted much attention due to the flexibility thereof. The touch sensor used in the flexible OLED panel is mainly an external type, that is, the touch sensor module is completed on the thin film encapsulation layer and then attached to the OLED panel. A problem faced by the direct fabrication of a touch sensor on a flexible OLED panel is the interference of the electron emission layer (i.e., the cathode) of the OLED on the touch sensor signal. Since the thickness of the thin film encapsulation material is only ten-plus micrometers, which leads to too close the distance between the touch sensor and the cathode, and the cathode electric field affects the driving signal of the touch sensor, thereby reducing the node capacitance, and resulting in low detection accuracy

SUMMARY OF THE INVENTION

A touch panel, which comprises:

a substrate;

a plurality of first electrode chains and second electrode chains on the substrate, disposed in a repeated and cross-insulating manner;

the first electrode chain comprising a plurality of first electrodes, and the second electrode chain comprising a plurality of second electrodes;

wherein the first electrode comprising a first sub-electrode and a second sub-electrode, electrically connected to each other, the first sub-electrode and the second sub-electrode being disposed spaced apart, and the second electrode surrounding both the first sub-electrode and the second sub-electrode.

The touch device provided by the present technical solution comprises: a substrate; a plurality of first electrode chains and second electrode chains on the substrate, disposed in a repeated and cross-insulating manner; the first electrode chain comprising a plurality of first electrodes, and the second electrode chain comprising a plurality of second electrodes; wherein the first electrode comprising a first sub-electrode and a second sub-electrode, electrically connected to each other, the first sub-electrode and the second sub-electrode being disposed spaced apart, and the second electrode surrounding both the first sub-electrode and the second sub-electrode. Since the first electrode comprises a first sub-electrode and a second sub-electrode that are electrically connected, the first sub-electrode and the second sub-electrode are spaced apart, the second electrode surrounds both the first sub-electrode and the second sub-electrode, therefore, the first sub-electrode and the second sub-electrode span at least a part of the surface of the second electrode, thereby increasing the length of the mutual boundary between the first electrode and the second electrode, thereby increasing the number The mutual capacitance between the first electrode and the second electrode, which further enables the touch panel to provide higher touch detection accuracy.

The present invention also provides a touch device. The touch device comprises the above touch panel.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

To further explain the technical means and effect of the present invention, the following refers to embodiments and drawings for detailed description. Apparently, the described embodiments are merely some embodiments of the present invention, instead of all embodiments. All other embodiments based on embodiments in the present invention and obtained by those skilled in the art without departing from the creative work of the present invention are within the scope of the present invention.

The terms “comprising” and “having” and any variations thereof appearing in the specification, claims, and drawings of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units not listed, or alternatively, other steps or units inherent to these processes, methods, products or equipment. In addition, the terms “first”, “second” and “third” are used to distinguish different objects, and are not intended to describe a particular order.

As shown inFIG. 1,FIG. 1is a schematic view showing the structure of the touch panel according to the first embodiment of the present invention. The touch panel10comprises:

a substrate20;

a plurality of first electrode chains100and second electrode chains200on the substrate20, disposed in a repeated and cross-insulating manner;

the first electrode chain100comprising a plurality of first electrodes110, and the second electrode chain200comprising a plurality of second electrodes210;

wherein the first electrode110comprising a first sub-electrode111and a second sub-electrode112, electrically connected to each other, the first sub-electrode111and the second sub-electrode112being disposed spaced apart, and the second electrode210surrounding both the first sub-electrode111and the second sub-electrode112.

Wherein, the substrate20is a transparent substrate, such as, a glass substrate or a plastic substrate, and may be a flexible substrate. When the touch panel is applied to an OLED display device, the substrate may be an encapsulation layer of the OLED display device.

Optionally, in an embodiment, the first electrode chain100is a sensing electrode chain, and the second electrode chain200is a driving electrode chain. It should be understood that in other embodiments, the first electrode chain100is a driving electrode chain, and the second electrode chain200is a sensing electrode chain. In the present application, the first electrode chain100is a sensing electrode chain, and the second electrode chain200is a driving electrode chain.

Optionally, in an embodiment, the second electrode210is a shape of a square with a bar penetrating the middle section of the square (which resembles the Chinese character of middle), and the first electrode110is a “1” shape. The second electrode210and the first electrode110form a circular nested structure.

Specifically, the first electrode chain100comprises a plurality of first electrodes110, and the second electrode chain200comprises a plurality of second electrodes210. The first electrode chain100and the second electrode chain200together form the touch panel10. The touch panel10is only a minimum unit. In actual applications, the touch panel10is the smallest unit for extending in a first direction and a second direction. The first direction may be the X direction or the Y direction, and the second direction may be the Y direction or the X direction. When the first direction is the X direction, the second direction is the Y direction; when the first direction is the Y direction, the second direction is the X direction. In the present application, the first direction is the X direction, and the second direction is the Y direction.

It should be noted that, in actual use, the first electrode chain100and the second electrode chain200must avoid red, green and blue (RGB) pixel points of the touch panel10, and the first electrode chain100and the second electrode chain200may be disposed at gap areas between the RGB pixel points such that the wiring of the first electrode chain100and the second electrode chain200can avoid RGB pixels points. Because the first electrode chain100and the second electrode chain200are made of a metal material, which may block the light emission of the RGB pixel points, therefore, the first electrode chain100and the second electrode chain200are disposed in the RGB pixel area to prevent the first electrode chain100and the second electrode chain200from shielding the light emission of the RGB element points.

The touch panel provided by the present technical solution comprises: a substrate; a plurality of first electrode chains and second electrode chains on the substrate, disposed in a repeated and cross-insulating manner; the first electrode chain comprising a plurality of first electrodes, and the second electrode chain comprising a plurality of second electrodes; wherein the first electrode comprising a first sub-electrode and a second sub-electrode, electrically connected to each other, the first sub-electrode and the second sub-electrode being disposed spaced apart, and the second electrode surrounding both the first sub-electrode and the second sub-electrode. Since the first electrode comprises a first sub-electrode and a second sub-electrode that are electrically connected, the first sub-electrode and the second sub-electrode are spaced apart, the second electrode surrounds both the first sub-electrode and the second sub-electrode, therefore, the first sub-electrode and the second sub-electrode span at least a part of the surface of the second electrode, thereby increasing the length of the mutual boundary between the first electrode and the second electrode, thereby increasing the number The mutual capacitance between the first electrode and the second electrode, which further enables the touch panel to provide higher touch detection accuracy.

Optionally, refer toFIG. 2.FIG. 2is a schematic view showing the structure of the touch panel according to the second embodiment of the present invention. The second embodiment differs from the first embodiment in that the touch panel10of the present invention further comprises:

a third electrode120, disposed between two adjacent second electrodes210and insulated from the second electrode210;

a first connecting portion310, electrically connecting the first sub-electrodes111to the adjacent second sub-electrodes112;

wherein, the first connecting portion310being made of a metal material.

Optionally, in an embodiment, the number of the first connecting portions310may be one or plural.

A second connecting portion320is electrically connecting the first electrode110to the adjacent third electrode120.

A third connecting portion330is electrically connecting two adjacent third electrodes120.

Optionally, in an embodiment, the number of the second connecting portions320may be one. It may be understood that in other embodiments, the number of the second connecting portions320may also be plural. It may be understood that the number of the second connecting portions330may be one or plural.

Optionally, in an embodiment, the number of the first sub-electrodes111may be one. It may be understood that in other embodiments, the number of the first sub-electrodes111may also be plural.

Optionally, in an embodiment, the number of the second sub-electrodes112may be one. It may be understood that in other embodiments, the number of the second sub-electrodes112may also be plural.

Optionally, refer toFIG. 3. In an embodiment, the first electrode110and the second electrode210are disposed in the same layer, and an insulating layer1000is disposed between the first connecting portion310and the first sub-electrode111and the second sub-electrodes112. The insulating layer1000is disposed with a first via410corresponding to the first sub-electrode111, and the insulating layer1000is disposed with a second via420corresponding to the second sub-electrode112. The first connecting portion310is electrically connected to the first sub-electrode111through the first via410, and the first connecting portion310is electrically connected to the second sub-electrode112through the second via420.

Optionally, a metal material is disposed inside the first via410and the second via420.

Optionally, in another embodiment, the first electrode110and the second electrode210are disposed in different layers, and the first connecting portion310and the first electrode110are disposed in the same layer.

Optionally, in yet another embodiment, a barrier layer is disposed between the first electrode110and the second electrode210, and the barrier layer is configured to isolate the first electrode110and the second electrode210.

The touch panel provided by the present technical solution comprises: a substrate; a plurality of first electrode chains and second electrode chains on the substrate, disposed in a repeated and cross-insulating manner; the first electrode chain comprising a plurality of first electrodes, and the second electrode chain comprising a plurality of second electrodes; wherein the first electrode comprising a first sub-electrode and a second sub-electrode, electrically connected to each other, the first sub-electrode and the second sub-electrode being disposed spaced apart, and the second electrode surrounding both the first sub-electrode and the second sub-electrode. Since the first electrode comprises a first sub-electrode and a second sub-electrode that are electrically connected, the first sub-electrode and the second sub-electrode are spaced apart, the second electrode surrounds both the first sub-electrode and the second sub-electrode, therefore, the first sub-electrode and the second sub-electrode span at least a part of the surface of the second electrode, thereby increasing the length of the mutual boundary between the first electrode and the second electrode, thereby increasing the number The mutual capacitance between the first electrode and the second electrode, which further enables the touch panel to provide higher touch detection accuracy.

Refer toFIG. 4.FIG. 4is a schematic view showing the structure of the touch device according to a preferred embodiment of the present invention. The touch device1comprises a touch panel10, and the touch panel10may be the touch panel10provided in any of the preceding embodiments, and details are not described herein. The touch device1can be, but is not limited to, an e-book, a smart phone (such as an Android phone, an IOS phone, a Windows Phone, etc.), a tablet, a palmtop computer, a notebook computer, and a mobile Internet device (Mobile Internet Devices, MID) or wearable devices. The touch device can be an OLED touch device.

It should be noted that each of the embodiments in this specification is described in a progressive manner, each of which is primarily described in connection with other embodiments with emphasis on the difference parts, and the same or similar parts may be seen from each other. For the device embodiment, since it is substantially similar to the method embodiment, the description is relatively simple and the relevant description may be described in part of the method embodiment.