Touch display panel and electronic equipment

Abstract

The invention relates to the technical field of panel display, and discloses a touch display panel and electronic equipment, the touch display panel comprises a display module and a touch control layer, the touch control layer is provided with a touch control area and a peripheral area arranged on the peripheral side of the touch control area, a plurality of metal lines are arranged in the peripheral area, the metal lines are covered with a transparent insulating layer, and the transparent insulating layer is arranged between the touch control area and the peripheral area. The transparent insulating layer covers the surfaces of the metal circuits and gaps among the metal circuits. According to the touch display panel, the surface of the circuit is completely covered with the transparent insulating layer, the antistatic capacity of the surface of the metal circuit is improved in a complete blocking mode, and therefore the overall service life of a product is prolonged.

Description

Technical Field

[0001] This invention relates to the field of flat panel display technology, and more particularly to a touch display panel and electronic device. Background Technology

[0002] In the flat panel display field, product updates and iterations are accelerating. Currently, display products are gradually moving towards ultra-thin and ultra-narrow designs to achieve larger display areas and thinner bodies. However, this design often leads to a decrease in the overall strength of the product, resulting in varying degrees of reduction in overall durability and impact resistance. Currently, a common touch display panel includes a display module and a touch layer bonded to the display module. The touch layer includes a metal mesh layer, covered by an OC layer for insulation. However, when this structure is subjected to external electrostatic discharge (ESD), static electricity can enter the internal structure through conduction or from gaps in the panel, causing ESD damage. When the static electricity reaches a certain level, it can easily cause the metal circuitry in the surrounding area to break, leading to product malfunction. Summary of the Invention

[0003] The present invention aims to solve at least one problem mentioned in the background art. To this end, the present invention provides a touch display panel and an electronic device, which has good anti-static properties, thereby improving the overall lifespan of the product.

[0004] A touch display panel according to a first aspect of the present invention includes a display module and a touch layer. The touch layer has a touch area and a peripheral area surrounding the touch area. Multiple metal lines are disposed in the peripheral area, and a transparent insulating layer covers the multiple metal lines. The transparent insulating layer covers the surface of the metal lines and the gaps between the multiple metal lines. This solution improves the antistatic capability of the metal lines by completely covering the surface of the lines with a transparent insulating layer, thereby increasing the overall service life of the product.

[0005] According to another embodiment of the present invention, the touch layer includes a substrate and a metal mesh structure disposed on the substrate, the metal mesh structure being disposed within the touch area, and a plurality of metal lines extending from the metal mesh structure.

[0006] According to another embodiment of the present invention, the peripheral area is further provided with a peripheral ground wire, which is disposed between the metal line and the outermost edge of the peripheral area.

[0007] According to another embodiment of the present invention, the transparent insulating layer covers the surface of the peripheral ground wire, and the transparent insulating layer covers the gap between the peripheral ground wire and the metal line.

[0008] According to another embodiment of the invention, the outermost edge of the transparent insulating layer extends to the outermost edge of the peripheral region.

[0009] According to another embodiment of the present invention, the distance between the outermost part of the transparent insulating layer and the peripheral ground wire is 0.1-0.5 mm.

[0010] According to another embodiment of the present invention, the metal mesh structure includes a first metal mesh layer and a second metal mesh layer, wherein a first insulating layer is provided between the first metal mesh layer and the second metal mesh layer.

[0011] According to another embodiment of the present invention, the transparent insulating layer extends to the touch area, covers the second metal mesh layer, and a second insulating layer is disposed between the second metal mesh layer and the transparent insulating layer.

[0012] According to another embodiment of the present invention, the transparent insulating layer is an OCA optical adhesive layer.

[0013] An electronic device according to a second aspect of the present invention includes the touch display panel described in any of the preceding claims.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention discloses a touch display panel and an electronic device. The touch display panel includes a display module and a touch layer. The touch layer has a touch area and a peripheral area surrounding the touch area. Multiple metal lines are arranged in the peripheral area, and a transparent insulating layer covers the surface of the metal lines and the gaps between them. This solution improves the anti-static capability of the metal lines by completely covering them with a transparent insulating layer, thereby extending the overall lifespan of the product.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0018] Figure 1 A schematic diagram of an embodiment of the touch display panel provided in this application;

[0019] Figure 2 Another schematic diagram of an embodiment of the touch display panel provided in this application;

[0020] Figure 3 A schematic diagram of an embodiment of the touch layer of the touch display panel provided in this application;

[0021] Figure 4 A schematic diagram of an embodiment of the electronic device provided in this application;

[0022] The markings in the diagram mean:

[0023] 10. Electronic devices;

[0024] 100. Touch display panel;

[0025] 110. Display module;

[0026] 120. Touch layer; 121. Touch area; 122. Peripheral area; 123. Metal wiring;

[0027] 124. Transparent insulating layer; 125. Substrate; 126. Metal mesh structure;

[0028] 1261. First metal mesh layer; 1262. Second metal mesh layer; 1263. First insulating layer;

[0029] 1264. Second insulation layer; 127. Peripheral ground wire. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this invention, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] To illustrate the touch display panel and electronic device provided in this application, the following detailed description is provided in conjunction with the accompanying drawings and textual descriptions of the embodiments.

[0034] Currently, a common type of touch display panel includes a display module and a touch layer attached to the display module. The touch layer includes a metal mesh layer, and an OC layer is covered on the metal mesh layer for insulation. However, when this structure is subjected to external electrostatic discharge, static electricity can enter the interior of the device through conduction or from gaps in the device, causing electrostatic discharge to damage the internal structure. When the static electricity reaches a certain level, it can easily cause the metal circuits in the surrounding area to break, resulting in product malfunction.

[0035] In view of this, this application provides a touch display panel that fully covers the circuit surface with a transparent insulating layer, thereby improving the antistatic capability of the metal circuit surface through complete isolation, and thus improving the overall service life of the product.

[0036] The following is for reference. Figures 1-3 A touch display panel 100 according to an embodiment of the first aspect of the present invention is described, such as Figures 1-3 As shown, the touch display panel 100 includes a display module 110 and a touch layer 120. Specifically, the touch layer 120 has a touch area 121 and a peripheral area 122 surrounding the touch area 121. Multiple metal lines 123 extending from the touch area 121 are provided in the peripheral area 122. Furthermore, a transparent insulating layer 124 covers the multiple metal lines 123, covering the surface of the metal lines 123 and the gaps between them. By completely covering the surface of the lines with the transparent insulating layer 124, the antistatic capability of the metal lines 123 is improved through complete isolation. The touch display panel 100 provided in this embodiment solves the problem that the metal lines 123 in the peripheral area 122 are easily broken due to static electricity, thus improving the product's lifespan.

[0037] It should be noted that the display module 110 is a module used to display images. Specifically, the display module 110 can be an LCD display module (LCD Module, LCM). In some other embodiments, the display module 110 can also be an OLED display module 110 or other types of display modules 110.

[0038] It should be noted that the touch layer 120 is used to sense touch and generate touch sensing signals. The touch layer 120 has a touch area 121 and a peripheral area 122. The touch area 121 is provided with a sensing electrode structure, thereby realizing touch sensing through the sensing electrode structure. Furthermore, the peripheral area 122 is located outside the touch area 121 and is used to realize the routing of the metal circuit 123. Specifically, the peripheral area 122 is provided with metal circuit 123 and gold fingers. The gold fingers are connected to the sensing electrode structure in the touch area 121 through the corresponding metal circuit 123. At the same time, the gold fingers are used to bond with the flexible circuit board to realize the electrical connection between the flexible circuit board and the touch layer 120.

[0039] It should be noted that the flexible circuit board is a highly reliable flexible printed circuit board made of polyimide or polyester film as the substrate 125. The flexible circuit board is bonded to the gold fingers in the touch layer 120, so that the flexible circuit board can transmit signals with the touch layer. When the touch display panel 100 is assembled with other components, the flexible circuit board can be bent, thereby reducing the space occupied by the flexible circuit board.

[0040] According to one embodiment of the present invention, such as Figures 1-3 As shown, the touch layer 120 includes a substrate 125 and a metal mesh structure 126 disposed on the substrate 125. The metal mesh structure 126 is disposed within the touch area 121, and multiple metal lines 123 are led out from the metal mesh structure 126 and finally guided to the gold fingers to achieve bonding.

[0041] It should be noted that the substrate 125 can be a transparent material, thus having good light transmittance.

[0042] It should be noted that the metal mesh structure 126 is a touch-sensing electrode structure in the touch layer 120, used to realize the touch sensing function. Furthermore, the metal mesh structure 126 may include one or two insulating metal mesh layers, wherein the metal mesh layers are formed by the intersection of several metal lines to form a metal mesh.

[0043] It should be noted that in some other embodiments, the structure of the touch layer 120 may also adopt other structures, not limited to the metal mesh structure 126. For example, the structure of the touch layer 120 is an indium tin oxide (ITO) structure.

[0044] According to one embodiment of the present invention, such as Figures 1-3As shown, the peripheral area 122 is also provided with an outer ground wire 127. The outer ground wire 127 is located between the metal line 123 and the outermost edge of the peripheral area 122. That is to say, the outer ground wire is located in the peripheral area 122 and is located outside the metal line 123, so as to achieve grounding protection for the metal line 123, and at the same time, to a certain extent avoid signal interference caused by external signals to the touch area 121.

[0045] According to one embodiment of the present invention, such as Figures 1-3 As shown, the transparent insulating layer 124 covers the surface of the peripheral ground wire 127 and the gap between the peripheral ground wire 127 and the metal line 123. It can be understood that by covering the peripheral ground wire 127 with the transparent insulating layer 124, the antistatic ability of the surface of the peripheral ground wire 127 can be effectively improved by completely blocking it, thereby improving the overall service life of the product.

[0046] According to one embodiment of the present invention, such as Figures 1-3 As shown, the outermost edge of the transparent insulating layer 124 extends to the outermost edge of the peripheral area 122. It can be understood that overlapping the outer edge of the transparent insulating layer 124 with the outer edge of the peripheral area 122 can enhance the electrostatic shielding effect of the peripheral area 122, and at the same time facilitate alignment during processing, thereby improving production efficiency.

[0047] According to one embodiment of the present invention, such as Figures 1-3 As shown, the distance between the outermost edge of the transparent insulating layer 124 and the outer ground wire 127 is 0.1-0.5mm. It can be understood that at this time, the outer edge of the transparent insulating layer 124 does not overlap with the outer edge of the surrounding area 122. That is, under the premise of ensuring that the outer ground wire 127 and the metal line 123 are covered by the transparent insulating layer 124, the outermost edge of the surrounding area 122 is not provided with the transparent insulating layer 124. Furthermore, the distance between the outermost edge of the transparent insulating layer 124 and the outer ground wire 127 is 0.1-0.5mm, that is, to ensure that the outer side and the top of the outer ground wire 127 are covered by the transparent insulating layer 124, thereby improving the electrostatic shielding effect.

[0048] According to one embodiment of the present invention, such as Figures 1-3 As shown, the metal mesh structure 126 includes a first metal mesh layer 1261 and a second metal mesh layer 1262. A first insulating layer 1263 is provided between the first metal mesh layer 1261 and the second metal mesh layer 1262. The first insulating layer 1263 is used to achieve electrical isolation between the first metal mesh layer 1261 and the second metal mesh layer 1262. Metal lines 123 are respectively led out from the first metal mesh layer 1261 and the second metal mesh layer 1262 and extended to the surrounding area 122 for bonding.

[0049] According to one embodiment of the present invention, such as Figures 1-3 As shown, the transparent insulating layer 124 extends to the touch area 121 and covers the second metal mesh layer 1262. Furthermore, a second insulating layer 1264 is provided between the second metal mesh layer 1262 and the transparent insulating layer 124 to achieve the effect of electrical isolation.

[0050] According to one embodiment of the present invention, such as Figures 1-3 As shown, the transparent insulating layer 124 is an OCA (Optically Clear Adhesive) optical adhesive layer. It can be understood that the OCA optical adhesive layer has good transparency, low haze, light transmittance ≥90%, as well as excellent weather resistance, damp heat resistance, long-lasting non-yellowing, no delamination or degradation, and at the same time has good metal compatibility, smooth adhesion or high bonding strength on textured surfaces, low curing shrinkage, and excellent step filling ability.

[0051] The following is for reference. Figure 4 An electronic device 10 according to an embodiment of a second aspect of the present invention is described, such as... Figure 4 As shown, the electronic device 10 includes a touch display panel 100. Specifically, the touch display panel 100 includes a display module 110 and a touch layer 120. Specifically, the touch layer 120 has a touch area 121 and a peripheral area 122 surrounding the touch area 121. Multiple metal lines 123 extending from the touch area 121 are provided in the peripheral area 122. Furthermore, a transparent insulating layer 124 covers the multiple metal lines 123, covering the surface of the metal lines 123 and the gaps between the multiple metal lines 123. By completely covering the surface of the lines with the transparent insulating layer 124, the antistatic capability of the metal lines 123 is improved through complete isolation. The touch display panel 100 provided in this embodiment solves the problem that the metal lines 123 in the peripheral area 122 are easily broken due to static electricity, thus improving the product's service life.

[0052] The above-described touch display panel and electronic device provided in this application are preferred embodiments and should not be construed as limiting the scope of protection of this application. Those skilled in the art should know that various improvements or substitutions can be made without departing from the concept of this application, and all improvements or substitutions should be within the scope of protection of this application, that is, the scope of protection of this application should be determined by the claims.

[0053] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

Claims

1. A touch display panel, characterized in that, include: Display module; The touch layer has a touch area and a peripheral area around the touch area. Multiple metal lines are provided in the peripheral area. A transparent insulating layer covers the multiple metal lines, wherein the transparent insulating layer covers the surface of the metal lines and the gaps between the multiple metal lines.

2. The touch display panel as described in claim 1, characterized in that: The touch layer includes a substrate and a metal mesh structure disposed on the substrate. The metal mesh structure is disposed within the touch area, and multiple metal lines are led out from the metal mesh structure.

3. The touch display panel as described in claim 1, characterized in that: The surrounding area is also provided with an outer ground wire, which is located between the metal line and the outermost edge of the surrounding area.

4. The touch display panel as described in claim 3, characterized in that: The transparent insulating layer covers the surface of the peripheral ground wire and also covers the gap between the peripheral ground wire and the metal line.

5. The touch display panel as described in claim 4, characterized in that: The outermost edge of the transparent insulating layer extends to the outermost edge of the surrounding area.

6. The touch display panel as described in claim 4, characterized in that: The distance between the outermost edge of the transparent insulating layer and the peripheral ground wire is 0.1-0.5 mm.

7. The touch display panel as described in claim 1, characterized in that: The metal mesh structure includes a first metal mesh layer and a second metal mesh layer, with a first insulating layer between the first metal mesh layer and the second metal mesh layer.

8. The touch display panel as described in claim 7, characterized in that: The transparent insulating layer extends to the touch area, covering the second metal mesh layer, and a second insulating layer is disposed between the second metal mesh layer and the transparent insulating layer.

9. The touch display panel as described in claim 1, characterized in that: The transparent insulating layer is an OCA optical adhesive layer.

10. An electronic device, characterized in that, Includes a touch display panel as described in any one of claims 1-9.

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