CN203397336U - Copper wire type capacitance touch control screen - Google Patents

Abstract

The utility model provides a copper wire type capacitance touch control screen, which comprises a display screen, a copper wire type sensor and a cover lens, wherein the display screen is used for displaying images, the copper wire type sensor is arranged on the display screen and is used for sensing touch control points, the copper wire type sensor is a copper-plating type sensor obtained through simultaneously manufacturing required patterns and conducting wires onto a transparent substrate through a processing process, and the cover lens is arranged on the copper wire type sensor, is used for protecting the copper wire type sensor and is pasted with the copper wire type sensor through optical double-sided adhesives. The copper wire type capacitance touch control screen provided by the utility model has the advantages that the raw material cost can be reduced, the technical flow process is simplified, the equipment investment is reduced, and the product performance is improved.

Description

A kind of copper cash formula capacitive touch screen

Technical field

The utility model relates to capacitive touch screen, is specifically related to a kind of copper cash formula capacitive touch screen.

Background technology

Touch screen is for the compound touch-screen on the electronic products such as mobile phone, e-book, digital camera, and wherein capacitance type touch control screen is the most frequently used a kind of in touch screen.

Capacitance type touch control screen is to utilize the electric current induction of human body to carry out work.Capacitance type touch control screen is four layers of compound glass screen normally, when user's finger touch is on capacitance type touch control screen, due to people's bulk electric field, user and capacitance touching control screen surfaces form with a coupling capacitance (for high-frequency current, electric capacity can be considered as conductor), so finger siphons away a very little electric current from the touch point of capacitance touching control screen surfaces, this electric current divides in the electrode four jiaos from capacitance type touch control screen and flows out.The electric current of these four electrodes of flowing through is directly proportional to the distance at finger Dao Si angle, and controller by the accurate Calculation to these four current ratios, draws the position of touch point.

Existing capacitance type touch control screen as shown in Figure 1; generally include following chief component element: the display screen 10 that shows image; be arranged on described display screen; on glass baseplate, plated indium tin metal oxide ITO(Indium Tin Oxides) the nano indium tin metal oxide ITO sensor 11 of pattern; the cover plate that ITO sensor 11 is shielded (Cover Lens) 12; optics double faced adhesive tape 13 for bonding ITO sensor 11 with cover plate (Cover Lens) 12, and the flexible PCB 14 being connected with described ITO sensor 11.

The sensor of existing capacitance type touch control screen is on certain base material (glass or resin), to plate nano indium tin oxide ITO(Indium Tin Oxides), by etching (or gold-tinted technique), needed ITO pattern is made, then print out silver slurry wire, as the respective channel that connects components and parts IC on ITO pattern and corresponding touch screen, traditional like this ITO inductor needs multiple tracks technique to make, make production efficiency low, cost is also higher.

The patent No. is that 200810218271 Chinese patent discloses the patent of invention of " capacitance type touch control screen and manufacture method thereof ", the step of its capacitive touch screen manufacture method comprises prepared substrate, sputter indium tin metal oxide ITO layer on the processing side of substrate, and process by the operation of applying glue, development, exposure, etching and stripping glue according to predetermined pattern; Its invention Shortcomings is:

1, take indium tin metal oxide ITO is base material, and because of indium scarcity of resources in indium tin metal oxide, makes capacitive touch screen processing and fabricating cost too high;

2, fabrication processing is complicated, production efficiency is reduced, thereby cause cost higher.

The patent No. is that the patent of US2010139955A1 discloses the patent of invention of " patterned substrate, the touch screen sensor assembly with it and manufacture method thereof ", its invention comprises the patterned substrate of the touch screen sensor assembly of a plurality of electrodes, comprise 3 layers of metal conducting layer simultaneously, in described 3 layers of metal conducting layer, at least one comprises tin indium oxide, and production cost is too high; Touch screen sensor assembly manufacture method comprises the formation of multi-layered electrode pattern simultaneously, and its technological process is too complicated, and production efficiency is reduced, and causes cost up.

Utility model content

The utility model embodiment problem to be solved is, a kind of copper cash formula capacitive touch screen is provided, and can reduce the cost of raw material, simplification of flowsheet, reduces equipment investment, enhances product performance.

In order to overcome the above problems, the utility model embodiment provides a kind of copper cash formula capacitive touch screen, comprising:

For showing the display screen of image, as improvements of the present utility model, described copper cash formula capacitive touch screen also comprises: be arranged on described display screen, for the copper cash formula sensor of sensing touch point, described copper cash formula sensor is that required pattern and wire are together produced on to the copper facing formula sensor on transparent base by processing technology;

Described copper cash formula covers disposed on sensor is useful on the cover plate (Cover Lens) of the described copper cash formula sensor of protection, together with described cover plate (Cover Lens) passes through optics adhered by double sided plaster with described copper cash formula sensor.

Further, described transparent base is clear glass or transparent PET film.

Further, described copper cash formula capacitance plate also comprises:

Be connected with described copper cash formula sensor, for calculating touch point return to the flexible PCB of processor.

Further, described cover plate (Cover Lens) is made by tempered glass.

Copper cash formula capacitive touch screen provided by the utility model, it utilizes copper as electric conductor, and having broken traditional nano indium tin metal oxide ITO of take is electric conductor, and the difficult point that making technology is complicated, processing cost is high, greatly reduces manufacturing cost.

Further, the copper cash formula capacitive touch screen that the utility model provides, its copper cash figure can be made required pattern and lead-in wire by etching or gold-tinted technique in same procedure, has reduced the input of technological process and equipment, has saved production cost.

Further, the copper cash formula capacitive touch screen that the utility model provides, simple in structure, in thickness and weight, promoted advantage.

Further, the sensor lead of the copper cash formula capacitive touch screen that the utility model provides can be accomplished narrower compared with traditional sensors live width line-spacing, therefore in the constant situation Xia， viewing area of machine shape, can accomplish more large scale.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is existing capacitive touch screen structural representation;

Fig. 2 is the decomposing schematic representation of existing sensor;

Fig. 3 is the copper cash formula capacitive touch screen structural representation that the utility model embodiment provides;

Fig. 4 is the decomposing schematic representation of cover plate (Cover Lens), optics double faced adhesive tape, copper cash formula sensor and display screen in the copper cash formula capacitive touch screen that provides of the utility model embodiment;

Fig. 5 is the decomposing schematic representation of the copper cash formula sensor that provides of the utility model.

Embodiment

A kind of copper cash formula capacitive touch screen that the utility model embodiment provides, can reduce the cost of raw material, has simplified technological process, has reduced equipment investment, enhances product performance.

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope that the utility model is protected.

Referring to Fig. 3, Fig. 4, be respectively the structural representation of copper cash formula capacitive touch screen and the decomposing schematic representation of cover plate (Cover Lens), optics double faced adhesive tape, copper cash formula sensor and display screen in copper cash formula capacitive touch screen that the utility model provides.Copper cash formula capacitive touch screen comprises display screen 1, copper cash formula sensor 2, cover plate (Cover Lens) 3, optics double faced adhesive tape 4, the flexible PCB 5 for showing image, display screen 1 is for showing the display screen of image, preferred LCD display, its reaction velocity is fast, good contrast, brightness is high, and visible angle is large, simultaneously rich color; Copper cash formula sensor 2 is arranged on described display screen 1, for sensing touch point, described copper cash formula sensor 2 is copper facing on clear glass or transparent PET film, then the sensor of by etching or gold-tinted technique, required pattern and wire together being made, described copper cash formula sensor 2 comprises copper cash pattern 6 and transparent base 7, as the detailed description to transparent base 7, described base material 7 is clear glass or transparent PET film; Copper cash formula sensor adopts copper as electric conductor, solve tradition and take nano indium tin metal oxide ITO as the high difficult point of electric conductor processing cost, simultaneously in the manufacturing process of copper cash formula sensor, making with respect to original ITO sensor need be comprised of ITO pattern and two kinds of materials of silver-colored line, then both need form through other multiple working procedure processing and fabricatings such as gold-tinted techniques, processing procedure operation has reduced relatively, has improved production efficiency simultaneously; Cover plate (Cover Lens) 3, for the protection of described copper cash formula sensor, is made by tempered glass, can bear certain pressure; Optics double faced adhesive tape 4 is for bonding described copper cash formula sensor 2 and cover plate (Cover Lens) 3; Flexible PCB 5 is connected with described copper cash formula sensor 2, for calculating touch point return to processor.

Referring to Fig. 2, Fig. 5, be respectively the decomposing schematic representation of the decomposing schematic representation of existing sensor and the copper cash formula sensor that the utility model provides.Fig. 2 comprises layout ITO pattern 31 and is arranged in peripheral silver slurry layer 32; Fig. 5 comprises the impalpable superfine copper cash pattern 42 of naked eyes and is arranged in peripheral copper wire layer 41.

Known by above description, the copper cash formula capacitive touch screen that the utility model provides compared with prior art at least has the following advantages:

(1) cost of raw material reduces; Existing capacitive touch screen is to using ITO(indium tin metal oxide) as the starting material of sensor, and because of indium resource scarcity in indium tin metal oxide, cause ITO Film cost high, the sensor of the copper cash formula capacitive touch screen that the utility model provides is copper facing on clear glass or transparent PET film, copper aboundresources and low price, so the latter greatly reduces in the cost of raw material.

(2) making technology is simplified; The sensor of existing capacitive touch screen is comprised of ITO pattern and two kinds of materials of silver-colored line, and both all need by gold-tinted technique, to make figure respectively, need multiple tracks processing procedure operation.The copper cash formula capacitive touch screen that the utility model provides, its copper cash pattern can pass through gold-tinted technique, and pattern and lead-in wire are made in same procedure, has reduced processing procedure operation.

(3), in the situation that machine shape is constant, form can be accomplished larger.The sensor lead of the copper cash formula capacitive touch screen that the utility model provides can be accomplished narrower compared with traditional sensors live width line-spacing, therefore in the constant situation Xia， viewing area of machine shape, can accomplish more large scale.

It should be noted that; what the utility model was described is a kind of copper cash formula capacitive touch screen; other meets the product of structure described in the utility model; even if material, device name, outward appearance, device are put order etc., not affect the factor of product performance not identical, still belongs to the scope of the utility model protection.

Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims (4)

1. a copper cash formula capacitive touch screen, comprise for showing the display screen of image, it is characterized in that, described copper cash formula capacitive touch screen also comprises: be arranged on described display screen, for the copper cash formula sensor of sensing touch point, described copper cash formula sensor is that required pattern and wire are together produced on to the copper facing formula sensor on transparent base by processing technology;

Described copper cash formula covers disposed on sensor is useful on the cover plate (Cover Lens) of the described copper cash formula sensor of protection, together with described cover plate (Cover Lens) passes through optics adhered by double sided plaster with described copper cash formula sensor.

2. a kind of copper cash formula capacitive touch screen according to claim 1, is characterized in that, described transparent base is clear glass or transparent PET film.

3. a kind of copper cash formula capacitive touch screen according to claim 1, is characterized in that, described copper cash formula capacitance plate also comprises:

Be connected with described copper cash formula sensor, for calculating touch point return to the flexible PCB of processor.

4. according to the copper cash formula capacitive touch screen described in claims 1 to 3 any one, it is characterized in that, described cover plate (Cover Lens) is made by tempered glass.

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