CN212379822U

CN212379822U - High-reliability OGS touch screen and electronic equipment

Info

Publication number: CN212379822U
Application number: CN202021031725.4U
Authority: CN
Inventors: 陈健立; 林汉良
Original assignee: Truly Opto Electronics Ltd
Current assignee: Truly Opto Electronics Ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-01-19
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a high reliability OGS touch-sensitive screen and electronic equipment, OGS touch-sensitive screen includes: a substrate; the conductive pattern layer is arranged on the substrate; the metal routing is arranged on the substrate, positioned at the periphery of the conductive pattern layer and electrically connected with the conductive pattern layer; the first insulating layer covers the metal wire; a silicon oxide layer or a silicon nitride layer covering the first insulating layer and the conductive pattern layer. Through the utility model discloses the scheme is walked the line back at the metal and is plated the higher silicon dioxide of compactness and hardness or silicon nitride and resist adverse circumstances, in the project of higher reliability requirement, can protect the metal to walk the line and not corroded, satisfies anti high reliability requirement.

Description

High-reliability OGS touch screen and electronic equipment

Technical Field

The utility model relates to a touch-control technical field especially relates to a high reliability OGS touch-sensitive screen and electronic equipment.

Background

An OGS (One Glass Solution, single Glass touch technology) touch screen is an electronic product protection screen in which an ITO (Indium Tin oxide) conductive film and a sensor are directly formed on a protective Glass, and mainly One piece of Glass simultaneously plays dual roles of protecting the Glass and touching the sensor. Compared with a G-G touch screen, the OGS touch screen has the advantages of lower price, simpler process flow and better control over timely delivery of products, so that the OGS touch screen gradually replaces the G-G touch screen and is widely applied to electronic products such as vehicle-mounted TP (touch Panel) and the like.

However, the conventional OGS touch screen has insufficient requirements for high reliability, and metal traces of the OGS touch screen are easily corroded when the OGS touch screen is continuously placed for more than one thousand hours in an environment with a temperature of 60 ℃ and a humidity of 90%.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a high reliability OGS touch-sensitive screen and electronic equipment for among the solution prior art, the metal of OGS touch-sensitive screen is walked the problem that the line was corroded easily.

In order to solve the above problem, the utility model adopts the following technical scheme:

provided is a high-reliability OGS touch screen, including:

a substrate;

the conductive pattern layer is arranged on the substrate;

the metal wire is arranged on the substrate, positioned at the periphery of the conductive pattern layer and electrically connected with the conductive pattern layer;

the first insulating layer covers the metal wire;

a silicon oxide layer or a silicon nitride layer covering the first insulating layer and the conductive pattern layer.

Optionally, the first insulating layer fills gaps between the metal traces.

Optionally, a surface of the first insulating layer, which is far away from the substrate, is planar.

Optionally, the thickness of the silicon dioxide layer or the silicon nitride layer in the conductive pattern layer is the same as the thickness of the first insulating layer.

Optionally, the silicon dioxide layer part on the conductive pattern layer is recessed in the silicon dioxide layer part on the first insulating layer, or

The silicon nitride layer portion of the conductive pattern layer is recessed relative to the silicon nitride layer portion of the first insulating layer.

Optionally, the conductive pattern layer includes a first ITO conductive layer, a second insulating layer, and a second ITO conductive layer stacked in sequence, the first ITO conductive layer is disposed on the substrate, and the silicon dioxide layer or the silicon nitride layer covers the second ITO conductive layer.

Optionally, ink is coated between the metal trace and the substrate.

Optionally, the conductive pattern layer includes an ITO conductive layer disposed on the substrate and an MAM bridge bridging the ITO conductive layer.

Optionally, the first insulating layer is OC glue.

An electronic device is also provided, which comprises the high-reliability OGS touch screen.

The utility model discloses a technical scheme can reach following beneficial effect:

the back of the metal wire is plated with silicon dioxide or silicon nitride with higher compactness and hardness to resist severe environment, so that the metal wire can be protected from being corroded in the project with higher reliability requirement, and the requirement of high reliability resistance is met.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below to form a part of the present invention, and the exemplary embodiments and the description thereof of the present invention explain the present invention and do not form an improper limitation to the present invention. In the drawings:

FIG. 1 is a schematic structural diagram of an OGS touch screen disclosed in the prior art;

fig. 2 is a schematic diagram of a stacking structure of an OGS touch screen disclosed in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an OGS touch screen disclosed in an embodiment of the present invention.

Wherein the following reference numerals are specifically included in figures 1-3:

a substrate-1; a conductive pattern layer-2; metal traces-3, 3'; a first insulating layer-4; OC glue-4'; a silicon dioxide layer-5; ink-6; a first ITO conductive layer-21; a second insulating layer-22; second ITO conductive layer-23.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses a high reliability OGS touch-sensitive screen can be applied to electronic products such as on-vehicle TP. As shown in fig. 2 and 3, the high-reliability OGS touch screen includes a substrate 1, a conductive pattern layer 2, a metal trace 3, a first insulating layer 4, and a silicon dioxide layer 5 (or a silicon nitride layer). The substrate 1 may be a glass substrate 1 provided with a window area and a non-window area located at the periphery of the window area. The conductive pattern layer 2 may be provided in a window region of the substrate 1. The metal wire 3 is disposed in the non-window area of the substrate 1 and located at the periphery of the conductive pattern layer 2 to electrically connect the conductive pattern layer 2 with an electronic device, such as an FPC, and the metal wire 3 may be made of MoAlMo (molybdenum aluminum molybdenum, MAM for short). The first insulating layer 4 covers the metal traces 3. A silicon dioxide layer 5 (or silicon nitride layer) covers the first insulating layer 4 and the conductive pattern layer 2.

In the conventional OGS touch screen, as shown in fig. 1, a metal trace 3 'is covered by OC glue 4', but hardness and compactness of the OC glue 4 'are not very high, and in a project with a high reliability requirement, the metal trace 3' is corroded, so that the reliability is not satisfied. For current OGS touch-sensitive screen, the utility model discloses an OGS touch-sensitive screen plates the silica (or silicon nitride) that compactness and hardness are higher at the metal back of walking the line 3 and resists adverse circumstances, in the project that higher reliability required, can protect metal to walk line 3 not corroded, satisfies anti high reliability requirement.

The first insulating layer 4 may be only located in the area of the metal trace 3, and the first insulating layer 4 is not disposed on the conductive pattern layer 2, so as to reduce the cost. The first insulating layer 4 fills the gaps between the metal traces 3, so as to reduce the risk of wire connection between adjacent metal traces 3. The first insulating layer 4 may be an OC glue, and the back surface (i.e., the surface away from the substrate 1) of the first insulating layer 4 is planar, and the processing procedure of the first insulating layer 4 may be the same as the existing one, and only the existing one is added with a procedure of sputtering the silicon dioxide layer 5 (or the silicon nitride layer), thereby saving labor and time, facilitating the operation, and reducing the cost.

The thickness of the silicon dioxide layer 5 (or silicon nitride layer) on the conductive pattern layer 2 is the same as that of the first insulating layer 4 (i.e. the metal trace 3 region), i.e. the sputtering time of the silicon dioxide layer 5 (or silicon nitride layer) on the conductive pattern layer 2 is the same as that on the first insulating layer 4. The silicon dioxide layer 5 (or silicon nitride layer) portion of the conductive pattern layer 2 is recessed with respect to the silicon dioxide layer 5 (or silicon nitride layer) portion of the first insulating layer 4. And the thickness at each portion is greater than or equal to 20 μm. So set up, the process is simple, reliable, under the prerequisite of guaranteeing high reliability requirement, effective reduce cost.

The conductive pattern layer 2 may have various arrangements regardless of the arrangement of the first insulating layer 4 and the silicon oxide layer 5 (or the silicon nitride layer). In a first example, as shown in fig. 2 and 3, the conductive pattern layer 2 includes a first ITO conductive layer 21 provided on the substrate 1, a second insulating layer 22 provided on the first ITO conductive layer 21, and a second ITO conductive layer 23 provided on the second insulating layer 22. The first ITO conductive layer 21 and the second ITO conductive layer 23 are crossed strip-shaped hollow patterns, and a plurality of touch sensing points are formed by the first ITO conductive layer 21 and the second ITO conductive layer 23. The second insulating layer 22 may be OC glue.

At this time, ink (BM) is applied on the back surface of the substrate 1 (i.e. between the metal trace 3 and the substrate 1) in the non-window area. The metal wiring 3 is shielded by the ink, so that the metal wiring 3 is prevented from being seen from the front side of the touch screen.

In a second example, the conductive pattern layer includes an ITO conductive layer provided on the substrate and MAM (MoAlMo, molybdenum aluminum molybdenum) bridges bridging the ITO conductive layer. The pattern shape of the ITO conductive layer can be a triangular structure, a flexible structure or a rectangular structure. The conductive pattern layer is stable in structure and convenient for batch production.

The electronic equipment comprises the high-reliability OGS touch screen. In the electronic equipment, silicon dioxide (or silicon nitride) with higher compactness and hardness is plated on the back surface of the metal wire 3 to resist severe environment, so that the metal wire 3 can be protected from being corroded in the project with higher reliability requirement, and the requirement of high reliability resistance is met.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.

Claims

1. A high reliability OGS touch screen, comprising:

a substrate;

the conductive pattern layer is arranged on the substrate;

the first insulating layer covers the metal wire;

2. The high reliability OGS touch screen of claim 1, wherein the first insulating layer fills gaps between the metal traces.

3. The high reliability OGS touch screen of claim 2, wherein the first insulating layer is planar on a side away from the substrate.

4. The high reliability OGS touch screen of claim 1, wherein the thickness of the silicon dioxide layer or the silicon nitride layer at the conductive pattern layer is the same as the thickness at the first insulating layer.

5. The high reliability OGS touch screen of claim 4, wherein the silicon dioxide layer portion on the conductive pattern layer is recessed within the silicon dioxide layer portion on the first insulating layer or

6. The high-reliability OGS touch screen according to any one of claims 1-5, wherein the conductive pattern layer comprises a first ITO conductive layer, a second insulating layer and a second ITO conductive layer which are sequentially stacked, the first ITO conductive layer is arranged on the substrate, and the silicon dioxide layer or the silicon nitride layer covers the second ITO conductive layer.

7. The high reliability OGS touch screen of claim 6, wherein the metal traces are inked to the substrate.

8. The high reliability OGS touch screen of any one of claims 1-5, wherein the conductive pattern layer comprises an ITO conductive layer provided on the substrate and MAM bridges bridging the ITO conductive layer.

9. The high reliability OGS touch screen of any one of claims 1-5, wherein the first insulating layer is OC glue.

10. An electronic device, comprising the high reliability OGS touchscreen of any of claims 1-9.