CN104346006B - Capacitance plate and its manufacturing method and the equipment with the capacitance plate - Google Patents

Abstract

The invention discloses a capacitive screen and a manufacturing method thereof, and also discloses equipment with the capacitive screen. The capacitive screen includes: a glass plate; an ITO film, the ITO film is arranged on the glass plate; a plurality of first wirings, a plurality of the first wirings are arranged on the ITO film; and a plurality of second wiring, at least one of the plurality of second wirings includes a first part and a second part, the first part is arranged on the ITO film, and the second part is arranged on the glass plate, The first part of the second routing is connected to the second part, and the rest of the plurality of second routings are arranged on the glass plate. The capacitive screen according to the embodiment of the present invention has the advantages of low manufacturing cost, small frame width occupied by wires, and the like.

Description

Capacitive screen, manufacturing method thereof, and device having the same

technical field

The invention relates to a capacitive screen and its manufacturing method, and also relates to a device with the capacitive screen.

Background technique

The traces at the edge of the existing capacitive screen are all obtained by silk screen printing with silver paste or yellow photoetching of the metal coating layer (MoAlMo). However, silver paste screen printing has the defects of large line width and line spacing, and cannot be applied to capacitive screens with many channels and narrow frame requirements. Yellow photoetching of the metal coating layer has the defect of high cost.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present invention is to propose a capacitive screen.

Another object of the present invention is to provide a method for manufacturing the capacitive screen.

Yet another object of the present invention is to propose a device having said capacitive screen.

In order to achieve the above object, according to the embodiment of the first aspect of the present invention, a capacitive screen is proposed, and the capacitive screen includes: a glass plate; an ITO film, the ITO film is arranged on the glass plate; a plurality of first wires , a plurality of first wirings are provided on the ITO film; and a plurality of second wirings, at least one of the plurality of second wirings includes a first part and a second part, and the first part is set On the ITO film, the second part is arranged on the glass plate, the first part of the second wiring is connected to the second part, and the rest of the plurality of second wiring Partially provided on the glass plate.

According to the capacitive screen according to the embodiment of the present invention, the first part of at least one of the plurality of second wires is provided on the ITO film, so that the connection between the ITO film and the glass plate can be used. The blank area opposite to the routing area. That is to say, the first part of at least one of the plurality of second traces is set in a blank area on the ITO film opposite to the trace area of the glass plate, thereby reducing the The total width of the second traces on the glass plate (at least the total width of the second traces on the glass plate can be reduced by half), thereby reducing the space occupied by multiple second traces border width. Moreover, from another point of view, while keeping the frame width occupied by the multiple second traces unchanged, a plurality of the second traces can be manufactured by using a lower-cost method (such as silver paste screen printing) . Therefore, the capacitive screen according to the embodiment of the present invention has the advantages of low manufacturing cost, small frame width occupied by wires, and the like.

In addition, the capacitive screen according to the embodiment of the present invention may also have the following additional technical features:

According to an embodiment of the present invention, each of the second wirings includes a first part and a second part, the first part of each of the second wirings is provided on the ITO film, and the second part It is provided on the glass plate, wherein the first part of each of the second traces is connected to the second part. Thus, the frame width occupied by the plurality of second wires 400 can be further reduced.

According to an embodiment of the present invention, the first part of each of the second traces is connected to the second part through a conductive member. Thus, the part of the second wiring that is arranged on the ITO film and the part that is arranged on the glass plate can be more easily and stably connected together, thereby making the structure of the capacitive screen more stable. Stable and reasonable.

According to an embodiment of the present invention, the vias are made of anisotropic conductive glue. In this way, the part of the second wiring that is provided on the ITO film and the part provided on the glass plate can be more easily and stably connected together.

According to an embodiment of the present invention, each of the first traces is a silk-screened silver paste trace, and each of the second traces is a silk-screened silver paste trace. As a result, the manufacturing costs of the capacitive screen can be further reduced.

According to an embodiment of the present invention, each of the first wires is an emitter wire, and each of the second wires is a receiver wire.

According to the embodiment of the second aspect of the present invention, a method of manufacturing the capacitive screen according to the first aspect of the present invention is proposed, and the manufacturing method includes the following steps:

Prepare the glass plate and the ITO film;

printing a plurality of the first traces on the ITO film;

printing the first part of at least one of the plurality of second wirings on the ITO film and printing the second part on the glass plate, and printing the first part of the second wiring a part is connected to the second part, and the rest of the plurality of second traces are printed on the glass plate; and

The glass plate was combined with the ITO film.

By using the manufacturing method according to the embodiment of the present invention to manufacture the capacitive screen, the manufacturing cost of the capacitive screen can be reduced, and the frame width occupied by the wires can be reduced.

According to one embodiment of the present invention, the manufacturing method includes the following steps:

Provide a glass plate incoming material, and then sequentially carry out ITO coating and ITO etching on the glass plate incoming material to obtain the glass plate;

Provide an incoming ITO film, then shrink and etch the ITO film sequentially to obtain the ITO film;

silk-screen silver paste blocks and vias on the ITO film, and laser-etch the silver paste blocks to obtain at least one of the plurality of first traces and the plurality of second traces The first part of the at least one of the plurality of second traces is connected to a conductive member;

silk-screening a via on the glass plate, the second portion of the at least one of the plurality of second traces connected to the via, and the rest of the plurality of second traces ;and

The ITO film and the glass plate are pasted together, and the conductive elements on the ITO film are connected with the conductive elements on the glass plate.

As a result, the manufacturing costs of the capacitive screen can be further reduced.

An embodiment according to the third aspect of the present invention provides a device, which includes the capacitive screen according to the first aspect of the present invention.

Therefore, the device according to the embodiment of the present invention has the advantages of low manufacturing cost, small frame width occupied by wires, and the like.

According to one embodiment of the invention, the device is a mobile phone.

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

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a capacitive screen according to an embodiment of the present invention;

Fig. 2 is a sectional view along the A-A direction of Fig. 1;

3 is a schematic structural view of a capacitive screen according to another embodiment of the present invention;

Fig. 4 is the sectional view along B-B direction of Fig. 3;

FIG. 5 is a flowchart of a method for manufacturing a capacitive screen according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The following describes a capacitive screen 10 according to an embodiment of the present invention with reference to FIGS. 1-4 . As shown in FIGS. 1-4 , a capacitive screen 10 according to an embodiment of the present invention includes a glass plate 100 , an ITO film 200 , a plurality of first wires 300 and a plurality of second wires 400 .

The ITO film 200 is provided on the glass plate 100 . A plurality of first traces 300 are disposed on the ITO film 200 . At least one of the plurality of second traces 400 includes a first portion 410 and a second portion 420, the first portion 410 is disposed on the ITO film 200, the second portion 420 is disposed on the glass plate 100, the first portion of the second trace 400 410 is connected to the second part 420 . In other words, for the second wires 400 that are simultaneously provided on the ITO film 200 and the glass plate 100 (that is, the at least one of the plurality of second wires 400 ), the first part of one of the second wires 400 410 is connected to the second portion 420 of the second trace 400 . The rest of the plurality of second traces 400 are disposed on the glass plate 100 .

According to the capacitive screen 10 of the embodiment of the present invention, the first part 410 of at least one of the plurality of second wirings 400 is provided on the ITO film 200, so that the wiring area on the ITO film 200 opposite to the wiring area of the glass plate 100 can be used. blank space. That is to say, the first part 410 of at least one of the plurality of second wires 400 is set in the blank area on the ITO film 200 opposite to the wire area of the glass plate 100, so that the first part 410 on the glass plate 100 can be reduced. The total width of the two traces 400 (at least the total width of the second traces 400 on the glass plate 100 can be reduced by half), thereby reducing the frame width occupied by multiple second traces 400 . Moreover, from another point of view, the multiple second traces 400 can be manufactured using a relatively low-cost method (such as silver paste screen printing) while keeping the frame width occupied by the multiple second traces 400 unchanged. Therefore, the capacitive screen 10 according to the embodiment of the present invention has the advantages of low manufacturing cost, small frame width occupied by traces, and the like.

In order to better understand "the first part 410 of at least one of the plurality of second wirings 400 is provided on the ITO film 200 and the second part 420 of the at least one of the plurality of second wirings 400 is provided on the glass plate 100" for illustration, and a specific example is given below. For example, there may be ten second wires 400 , and each second wire 400 may include a first part 410 and a second part 420 . Wherein, the six second wires 400 are all arranged on the glass plate 100, the first part 410 of the other four second wires 400 can be arranged on the ITO film 200, and the second part of the four second wires 400 420 may be provided on the glass plate 100 . Moreover, the first portion 410 of each of the four second wires 400 can be connected to the second portion 420 of the second wire 400 .

Both the first wiring 300 and the second wiring 400 can be manufactured by a method with lower cost but larger line width and line spacing.

Specifically, each first trace 300 may be a silk-screened silver paste trace, and each second trace 400 may be a silk-screened silver paste trace. As a result, the manufacturing costs of the capacitive screen 10 can be further reduced.

Each first wire 300 may be an emitter wire, and each second wire 400 may be a receiver wire.

A first ITO layer 110 may be provided on the glass plate 100 , and a second ITO layer 210 may be provided on the ITO film 200 .

As shown in FIG. 3 and FIG. 4 , in some embodiments of the present invention, each second trace 400 may include a first portion 410 and a second portion 420, and the first portion 410 of each second trace 400 may be set at On the ITO film 200 , and the second portion 420 of each second trace 400 may be disposed on the glass plate 100 . Wherein, the first part 410 of each second wiring 400 may be connected with the second part 420 . Thus, the frame width occupied by the plurality of second wires 400 can be further reduced.

In order to better understand "the first part 410 of each second wiring 400 can be arranged on the ITO film 200, and the second part 420 of each second wiring 400 can be arranged on the glass plate 100. Wherein, each The first part 410 of the second wiring 400 may be connected to the second part 420" for description, and a specific example is given below. For example, there may be ten second wires 400 , and each second wire 400 may include a first part 410 and a second part 420 . Wherein, the first parts 410 of the ten second wires 400 can all be disposed on the ITO film 200 , and the second parts 420 of the ten second wires 400 can all be disposed on the glass plate 100 . Moreover, the first portion 410 of each of the ten second traces 400 may be connected to the second portion 420 of the second trace 400 .

As shown in FIGS. 1 and 3 , in one embodiment of the present invention, for the second wires 400 arranged on the glass plate 100 and the ITO film 200 , the first part 410 of each second wire 400 is The second portion 420 of the second trace 400 can be connected through a via 500 . In other words, the portion of each second wiring 400 disposed on the ITO film 200 may be connected to the portion of the second wiring 400 disposed on the glass plate 100 through the via 500 . Thus, the part of the second wiring 400 disposed on the ITO film 200 and the part disposed on the glass plate 100 can be connected together more easily and stably, thereby making the structure of the capacitive screen 10 more stable and reasonable.

Advantageously, the via 500 may be made of anisotropic conductive paste (ACP). Thus, the part of the second wire 400 disposed on the ITO film 200 and the part disposed on the glass plate 100 can be more easily and stably connected together.

There may be multiple vias 500 , and the number of vias 500 may be equal to the number of second traces 400 disposed on the ITO film 200 . Wherein, a portion of a second wiring 400 disposed on the ITO film 200 may be connected to a portion of the second wiring 400 disposed on the glass plate 100 through a via 500 .

The following describes the manufacturing method of the capacitive screen 10 according to the embodiment of the present invention with reference to FIGS. 1-5 . As shown in FIGS. 1-5 , the manufacturing method of the capacitive screen 10 according to the embodiment of the present invention includes the following steps:

Prepare glass plate 100 and ITO film 200;

Printing a plurality of first wires 300 on the ITO film 200;

The first part 410 of at least one of the plurality of second wirings 400 is printed on the ITO film 200, and the second part 420 of the at least one of the plurality of second wirings 400 is printed on the glass plate 100 and connect the first portion 410 of the at least one of the plurality of second traces 400 to the second portion 420 , and print the rest of the plurality of second traces 400 on the glass plate 100 . In other words, the part of the second wiring 400 provided on the ITO film 200 is connected to the part of the second wiring 400 provided on the glass plate 100 .

The glass plate 100 and the ITO film 200 are combined together.

By using the manufacturing method according to the embodiment of the present invention to manufacture the capacitive screen 10, the manufacturing cost of the capacitive screen 10 can be reduced, and the frame width occupied by the wires can be reduced.

The glass sheet 100 can be manufactured using known methods. Specifically, the following method can be used to manufacture the glass plate 100 : providing an incoming glass plate, and then sequentially performing ITO coating and ITO etching on the incoming glass plate to obtain the glass plate 100 . In addition, a silk screen decoration layer can also be made on the incoming glass plate.

The ITO film 200 can be produced by a known method. Specifically, the following method can be used to manufacture the ITO film 200 : an incoming ITO film is provided, and then shrinkage and ITO etching are sequentially performed on the incoming ITO film to obtain the ITO film 200 .

Then silver paste blocks and vias 500 can be silk-printed on the ITO film 200, and the silver paste blocks are laser etched to obtain at least one of the plurality of first traces 300 and the plurality of second traces 400 The first portion 410 of at least one of the plurality of second traces 400 is connected to the via 500 . That is, a portion of each second wiring 400 disposed on the ITO film 200 may be connected to one via 500 .

The via 500 , the second part 420 of the at least one of the plurality of second traces 400 connected to the via 500 and the rest of the plurality of second traces 400 are silk-printed on the glass plate 100 . In other words, the portion of each second wire 400 of the at least one of the plurality of second wires 400 disposed on the glass plate 100 may be connected to one via 500 .

The ITO film 200 and the glass plate 100 are bonded together, and the vias 500 on the ITO film 200 are connected to the vias 500 on the glass plate 100 . Thus, the portion of the at least one of the plurality of second wires 400 disposed on the ITO film 200 can be connected to the portion disposed on the glass plate 100 .

Specifically, the ITO film 200 and the glass plate 100 can be bonded together by a known method.

The present invention also provides a device. The device according to the embodiment of the present invention includes the capacitive screen 10 according to the above embodiment. Therefore, the device according to the embodiment of the present invention has the advantages of low manufacturing cost, small frame width occupied by wires, and the like.

Specifically, the device may be a mobile phone.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (9)

1. a kind of capacitance plate, which is characterized in that including：

Glass plate；

Ito film, the ito film are set on the glass plates；

Multiple first cablings, multiple first cablings are located in the ito film；With

At least one of multiple second cablings, multiple second cablings include first part and second part, described first Part be located in the ito film, the second part is set on the glass plates, the first part of second cabling with The second part is connected, and the rest part in multiple second cablings is set on the glass plates；

Wherein, each first cabling is silk-screen silver paste cabling, and each second cabling is silk-screen silver paste cabling.

2. capacitance plate according to claim 1, which is characterized in that each second cabling includes first part and second Part, the first part of each second cabling is located in the ito film and the second part is located at the glass On plate, wherein the first part of each second cabling is connected with the second part.

3. capacitance plate according to claim 2, which is characterized in that the first part and institute of each second cabling Second part is stated by conduction element to be connected.

4. capacitance plate according to claim 3, which is characterized in that the conduction element is made of anisotropic conductive adhesive paste.

5. capacitance plate according to claim 1, which is characterized in that each first cabling is emitter cabling, each Second cabling is receiving pole cabling.

6. a kind of manufacturing method of capacitance plate according to any one of claims 1-5, which is characterized in that including following step Suddenly：

Prepare the glass plate and the ito film；

Multiple first cablings are printed in the ito film；

The first part of at least one of multiple second cablings is printed in the ito film and prints second part On the glass plates, and by the first part of second cabling it is connected with the second part, by multiple described Rest part printing in two cablings is on the glass plates；With

The glass plate and the ito film are combined together.

7. manufacturing method according to claim 6, which is characterized in that include the following steps：

Glass plate supplied materials is provided, then carries out ITO plated films and ITO etchings to the glass plate supplied materials successively to obtain the glass Plate；

Ito film supplied materials is provided, is then shunk successively to the ito film supplied materials and ITO etches to obtain the ito film；

Silk-screen silver paste block and conduction element in the ito film carry out laser-induced thermal etching to silver paste block, to obtain multiple described the At least one first part in one cabling and multiple second cablings, the institute in multiple second cablings At least one first part is stated with conduction element to be connected；

It is described at least one in silk-screen conduction element, multiple second cablings being connected with conduction element on the glass plates Rest part in the second part and multiple second cablings；With

The ito film and the glass plate are fit together, and made on conduction element and the glass plate in the ito film Conduction element is connected.

8. a kind of equipment, which is characterized in that including capacitance plate according to any one of claims 1-5.

9. equipment according to claim 8, which is characterized in that the equipment is mobile phone.