TW201500986A - One glass solution device and method of manufacturing the same - Google Patents

Abstract

An one glass solution device including a substrate, a 1st printed layer disposed on the substrate and covers a part of the region of the substrate, a conductive layer disposed on the substrate and the 1st printed layer, and a 2nd printed layer disposed on the conductive layer corresponding to the 1st printed layer. The problem that the open issue in the conductive layer caused by the height difference between the substrate and the printed layer is solved by printing the printed layer separately.

Description

Monolithic glass touch panel device and method of manufacturing same

Embodiments of the present invention relate to a monolithic glass touch panel device and a method of fabricating the same, and more particularly to a method for reducing a height difference between a printed bezel layer and an unprinted region on a substrate to improve a conductive layer. A monolithic glass touch panel device that is susceptible to climbing breakage due to excessively high height of the printed bezel layer, and a method for manufacturing a monolithic glass touch panel device.

In recent years, since touch functions are generally used in smart handheld devices, the requirements for thinness and shortness of electronic products are also applied to touch panels. Currently, one-piece glass touch panels (OGS) and surface mounts have been embedded. Solutions such as On-Cell Touch and In-Cell Touch effectively reduce the overall thickness of the product.

The single-chip glass touch panel integrates the touch sensor into the surface cover glass. Since the sensing layer is integrated with the glass, there is no air problem between the LCD and the LCD. There is no need to fully fit the process, which naturally reduces costs.

However, when the single-chip glass touch panel is printed on the frame, the height of the frame may cause the sensing layer to be easily broken due to the height being too steep when etching the line. 1 is a cross-sectional view of a monolithic glass touch device in accordance with the prior art. As shown in FIG. 1 , the prior art single-chip glass touch device includes a substrate 100 , a printed bezel layer 200 , and a conductive layer 300 . The printed bezel layer 200 can be disposed on the substrate 100 to cover a portion of the substrate 100 . The conductive layer 300 can then be disposed on the substrate 100 and the printed bezel layer 200. The conductive layer 300 may cause the climbing break portion 50 due to the excessively high frame height of the printed bezel layer 200, thereby affecting the touch sensitivity of the touch panel, and thus it is necessary to solve these problems.

Embodiments of the present invention provide a method for reducing the height difference between the printed frame layer and the unprinted area on the substrate, so as to improve the problem that the conductive layer is easily broken due to the height of the printed frame layer when the conductive layer is etched, thereby improving the final product. A monolithic glass touch panel device of good yield and a method of manufacturing the same.

According to an embodiment of the invention, a monolithic glass touch panel device is provided, comprising a substrate, a first printed bezel layer, a conductive layer and a second printed bezel layer. The first printed bezel layer may be disposed on the substrate to cover a portion of the substrate, the conductive layer may be disposed on the substrate and the first printed bezel layer, and the second printed bezel layer may be disposed on the conductive layer corresponding to the first printed bezel layer .

Preferably, a spacer layer is disposed under the conductive layer and above the substrate and the first printed bezel layer.

Preferably, the substrate can be a tempered glass substrate.

Preferably, the material of the first printed frame layer can be black ink.

Preferably, the conductive layer may be an indium tin oxide (ITO) layer.

Preferably, the material of the second printed frame layer can be black ink.

Preferably, the material of the spacer layer is a transparent OC (overcoat) glue.

According to an embodiment of the invention, a method for manufacturing a monolithic glass touch panel device is provided, which first provides a substrate, and then forms a first printed frame layer on a portion of the substrate, and then on the first printed frame. A conductive layer is formed on the layer and the substrate, and finally a second printed bezel layer is formed on the conductive layer corresponding to the first printed bezel layer.

Preferably, the step of forming a conductive layer may include plating a conductive material onto the substrate and the first printed bezel layer, and etching the plated conductive material to obtain a conductive pattern.

Preferably, before the step of forming the conductive layer, a spacer layer is further formed on the substrate and the first printed bezel layer to form a conductive layer thereon.

Therefore, according to the monolithic glass touch panel device and the manufacturing method thereof according to the embodiment of the present invention, the conductive layer is liable to cause the problem of climbing and disconnection due to the height of the printed frame layer being too steep when etching the circuit, and the printed frame layer can be reduced on the substrate. The difference in height from the unprinted area is improved, thereby improving the final yield of the monolithic glass touch panel device.

50‧‧‧Disconnection section
100‧‧‧Substrate
200‧‧‧Printed border layer
210‧‧‧First printed border layer
220‧‧‧Second printed border layer
300‧‧‧ Conductive layer
350‧‧‧ spacer

1 is a cross-sectional view of a monolithic glass touch panel device in accordance with the prior art of the present invention.
2 is a cross-sectional view of a one-piece glass touch panel device in accordance with a first embodiment of the present invention.
3 is a cross-sectional view of a one-piece glass touch panel device in accordance with a second embodiment of the present invention.
4 is a flow chart showing a method of manufacturing a monolithic glass touch panel device according to a first embodiment of the present invention.
Fig. 5 is a flow chart showing a method of manufacturing a one-piece glass touch panel device according to a second embodiment of the present invention.

The technical features, contents, and advantages of the present invention, as well as the advantages thereof, can be understood by the present inventors, and the present invention will be described in detail with reference to the accompanying drawings. The subject matter is only for the purpose of illustration and description. It is not intended to be a true proportion and precise configuration after the implementation of the present invention. Therefore, the scope and configuration relationship of the attached drawings should not be interpreted or limited. First described.

2 is a cross-sectional view showing a single-piece glass touch panel device in accordance with a first embodiment of the present invention. As shown in FIG. 2 , the monolithic glass touch panel device of the first embodiment of the present invention includes a substrate 100 , a first printed bezel layer 210 , a conductive layer 300 , and a second printed bezel layer 220 . The material of the substrate 100 can be a tempered glass substrate as a substrate for a monolithic glass touch panel. The material of the first printed frame layer 210 and the second printed frame layer 220 can be black ink, and has a Black Matrix light-shielding function to prevent leakage current and shadow leakage caused by illumination, thereby avoiding color purity reduction and increasing image contrast. The second printed bezel layer 220 is a reinforcing printed layer that is thinner in thickness for the first printed bezel layer 210 to improve color rendering. The material of the conductive layer 300 may be indium tin oxide (ITO) having a conductive pattern of X and Y axes to provide a touch function.

The first printed bezel layer 210 can be disposed on the substrate 100 to cover a portion of the substrate 100. Then, the conductive layer 300 can be disposed on the substrate 100 and the first printed bezel layer 210. Finally, the second printed bezel layer 220 can correspond to the first The bezel layer 210 is printed and disposed on the conductive layer 300.

Please refer to FIG. 1 and FIG. 2 simultaneously. Since the first embodiment of the present invention uses the first printing frame layer 210 and the second printing frame layer 220 to print in multiple portions, compared to the single printing of the prior art of FIG. The frame layer 200 reduces the height difference of the conductive layer 300 on the first printed frame layer 210 and the substrate 100, thereby solving the problem that the conductive layer 300 is easily broken due to the height being too steep when etching the line.

3 is a cross-sectional view showing a single-piece glass touch panel device in accordance with a second embodiment of the present invention. As shown in FIG. 3 , the monolithic glass touch device of the second embodiment of the present invention includes a substrate 100 , a first printed bezel layer 210 , a conductive layer 300 , a second printed bezel layer 220 , and a spacer layer 350 . The material of the substrate 100 can be a tempered glass substrate as a substrate for a monolithic glass touch panel. The material of the first printed frame layer 210 and the second printed frame layer 220 can be black ink, and has a Black Matrix light-shielding function to prevent leakage current and shadow leakage caused by illumination, thereby avoiding color purity reduction and increasing image contrast. The second printed bezel layer 220 is a reinforcing printed layer that is thinner in thickness for the first printed bezel layer 210 to improve color rendering. The material of the conductive layer 300 may be indium tin oxide (ITO) having a conductive pattern of X and Y axes to provide a touch function. The material of the spacer layer 350 may be a transparent OC (overcoat) glue, which may make the height difference of the conductive layer 300 on the first printed bezel layer 210 and the substrate 100 smaller.

The first printed bezel layer 210 can be disposed on the substrate 100 to cover a portion of the substrate 100. Then, the spacer layer 350 can be disposed on the substrate 100 and the first printed bezel layer 210, and the conductive layer 300 can be subsequently disposed on the spacer layer 350. Finally, the second printed bezel layer 220 may be disposed on the conductive layer 300 corresponding to the first printed bezel layer 210.

Please refer to FIG. 1 and FIG. 3 simultaneously. Since the second embodiment of the present invention uses the first printed bezel layer 210 and the second printed bezel layer 220 to print in multiple portions, compared to the single printing of the prior art of FIG. The frame layer 200 reduces the difference in height between the conductive layer 300 on the first printed frame layer 210 and the spacer layer 350, thereby solving the problem that the conductive layer is easily broken due to the height being too steep when etching the line.

It is also worth mentioning that, according to the spirit of the present invention, more layers of printed frame layers and spacer layers can be overlapped according to actual needs, and finally a conductive layer is disposed.

Hereinafter, a method of manufacturing a monolithic glass touch device having the above structure will be described with reference to the drawings.

As shown in FIG. 4, the monolithic glass touch panel of the first embodiment of the present invention can be manufactured by: providing a substrate 100, and then printing a portion of the substrate 100 to form a first printed bezel layer 210, The conductive material 300 is formed by plating a conductive material on the first printed frame layer 210 and the substrate 100, and finally forming a second printed frame layer 220 on the conductive layer 300 corresponding to the first printed frame layer 210.

As shown in FIG. 5, the monolithic glass touch panel of the second embodiment of the present invention can be manufactured by: providing a substrate 100, and then printing a portion of the substrate 100 to form a first printed bezel layer 210, Forming a spacer layer 350 on the first printed bezel layer 210 and the substrate 100, then plating a conductive material on the spacer layer 350 and etching to form the conductive layer 300, and finally corresponding to the first printed bezel layer 210 on the conductive layer 300. Printing forms a second printed bezel layer 220.

According to the embodiment of the present invention, when the conductive layer is etched, the problem of climbing and disconnection is easily caused by the height of the printed frame layer being too steep, and the height difference between the printed frame layer and the unprinted area on the substrate can be improved, thereby improving the single The final product yield of the chip glass touch panel device.

While the embodiments of the present invention have been particularly shown and described with reference to the exemplary embodiments thereof, Various changes in form and detail may be made in the spirit and scope of the invention.

100‧‧‧Substrate

210‧‧‧First printed border layer

220‧‧‧Second printed border layer

300‧‧‧ Conductive layer

350‧‧‧ spacer

Claims (10)

A monolithic glass touch panel device comprising:
a substrate;
a first printed bezel layer is disposed on the substrate to cover a portion of the substrate;
A conductive layer is disposed on the substrate and the first printed bezel layer; and a second printed bezel layer is disposed on the conductive layer corresponding to the first printed bezel layer. The monolithic glass touch panel device of claim 1, wherein a spacer layer is disposed under the conductive layer and above the substrate and the first printed frame layer. The monolithic glass touch panel device of claim 2, wherein the substrate is a tempered glass substrate. The monolithic glass touch panel device according to claim 2, wherein the material of the first printed frame layer is black ink. The monolithic glass touch panel device of claim 2, wherein the conductive layer is an indium tin oxide (ITO) layer. The monolithic glass touch panel device according to claim 2, wherein the material of the second printed frame layer is black ink. The one-piece glass touch panel device according to claim 2, wherein the spacer layer is made of a transparent OC (overcoat) glue. A manufacturing method of a monolithic glass touch panel device, comprising:
Providing a substrate;
Forming a first printed bezel layer on a portion of the substrate;
Forming a conductive layer on the first printed bezel layer and the substrate; and forming a second printed bezel layer on the conductive layer corresponding to the first printed bezel layer. The manufacturing method of claim 8, wherein the step of forming the conductive layer comprises plating a conductive material onto the substrate and the first printed bezel layer; and performing the plating on the conductive material Etching to obtain a conductive pattern. The manufacturing method of claim 8, wherein before the step of forming the conductive layer, a spacer layer is further formed on the substrate and the first printed bezel layer, wherein the conductive layer is formed thereon .