CN102945098B

CN102945098B - A kind of electrode lay-out of touch-screen

Info

Publication number: CN102945098B
Application number: CN201210495786.XA
Authority: CN
Inventors: 杜小雷
Original assignee: Suzhou Pixcir Microelectronics Co Ltd
Current assignee: Suzhou Pixcir Microelectronics Co Ltd
Priority date: 2012-11-29
Filing date: 2012-11-29
Publication date: 2016-05-11
Anticipated expiration: 2032-11-29
Also published as: CN102945098A

Abstract

The present invention relates to a kind of electrode lay-out of touch-screen, described electrode comprises someXDirection electrode and someYDirection electrode, and described inXDirection electrode andYDirection electrode forms by some electrode blocks, described inXDirection electrode block is the class cross of wave wire, described inYDirection electrode block is the class rhombus of part wave wire, and the described two wavy places of electrode block are intermeshing, form a space in its region between the two, are provided with suspension piece in described space. Touch screen electrode layout of the present invention, not only overcome the visual angle problem existing in appearance, and solved touch-screenSuspension problem has also improved sweep speed and report point rate simultaneously.

Description

A kind of electrode lay-out of touch-screen

Technical field

The present invention relates to a kind of electrode lay-out of touch-screen, refer in particular to the electrode lay-out of capacitive touch screen.

Background technology

Along with scientific and technical development, touch-screen has replaced mechanical botton panel gradually becomes the operation interface that the electronic equipment such as mobile phone, notebook is new. At present, touch-screen mainly comprises resistive touch screen, infrared touch panel and capacitive touch screen, and they all obtain coordinate by different modes. Thereby and capacitive touch screen is as close in conductive material such as finger, pointer by touch object or touching touch-screen changes the capacitance of touch-screen, in the time that touch-screen detects capacitance variations, just can judge the position of the touching touch-screens such as finger, pointer, and carry out the corresponding touching operation of touch position. Because capacitive touch screen has the characteristic that refers to touch-control more, the operation of hommization can be provided, thereby recently be subject to the favor in market.

Capacitive touch screen uses two independent transverse electrode layers that separate by dielectric conventionally, the joining formation node of transverse electrode and quilt other access are to determine the position of more than one or one touch point, can use the transparency electrode of for example tin indium oxide (ITO) or transparent conductive polymer to form node matrix equation, other electrode lay-out can utilize nonoverlapping electrode pattern (bar paten, as Chinese patent ZL201110380887 and flakes pattern, as Chinese patent ZL201010246072) to minimize the interference from the liquid crystal display that underlies (LCD). for the electrode lay-out that adopts bar paten, owing to being filled with suspension piece in the space forming at described bar paten, through facts have proved, this layout has overcome the shortcomings such as many fingers touch detection is unstable, power supply noise disturbs greatly, setting-out poor effect, but user finds in use, because the liquid crystal molecule on liquid crystal display is in continuous upset, just with touch-screen on electrode produced visual angle problem, user can obviously see the suspension piece on display, causes outward appearance to have certain flaw, and for adopting flakes pattern, increase because alabastrine branch can cause resistance, the load delay time is elongated, thereby can affect sweep speed and report point rate, and therefore this kind of electrode lay-out is also to be improved.

Therefore need to solve above problem for users provide a kind of electrode lay-out of new touch-screen.

Summary of the invention

Technical problem to be solved by this invention is how to provide one in appearance without visual angle problem, and can improve the touch screen electrode layout of sweep speed and report point rate.

To achieve these goals, the invention provides a kind of electrode lay-out of touch-screen, described electrode comprises some directions X electrodes and some Y-direction electrodes, and described directions X electrode and Y-direction electrode form by some electrode blocks, described directions X electrode block is the class cross of wave wire, and described Y-direction electrode block is the class rhombus of part wave wire, and the described two wavy places of electrode block are intermeshing, form a space in its region between the two, in described space, be provided with suspension piece.

Compared with prior art, touch screen electrode layout of the present invention, has not only overcome the visual angle problem existing in appearance, and has solved the suspension problem of touch-screen, has also improved sweep speed and report point rate simultaneously.

Brief description of the drawings

Fig. 1 is according to touch screen electrode schematic layout pattern of the present invention;

Fig. 2 is according to the partial enlarged drawing at touch screen electrode layout A of the present invention place.

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is further illustrated.

Incorporated by reference to reference to shown in figure 1 and Fig. 2, touch screen electrode layout of the present invention, described electrode comprises some directions X electrodes and some Y-direction electrodes, and the electrode on directions X is followed successively by X1, X2..., and the electrode in Y-direction is followed successively by Y1, Y2..., described directions X electrode is made up of some electrode blocks 11, Y-direction electrode is made up of some electrode blocks 12, and described electrode block 11 is class cross, is wave wire, described electrode block 12 is class diamond shaped, and its part is wave. Between described directions X electrode and Y-direction electrode, it is insulating barrier, all be laid in substrate, for fear of the mutual conduction between electrode block, in described substrate, bridge contact is set, if described electrode block interconnects in one direction, just interconnect by the mode of bridge joint at the above electrode block of another direction so.

For the ease of coordinates computed, described electrode block 11 and electrode block 12 are all symmetric form, so since, also increased the antijamming capability of Capacitance Coupled and described electrode, the center of described electrode block 12 is hollowed out, its inside also can arrange suspension piece 14, and described suspension piece 14 is rectangular, for the effective area of the piece 14 that reduces to suspend and strengthen to-noise ratio, described suspension piece 14 can arrange several, so, not only overcome the suspension problem of touch-screen, also strengthened the linearity of touch-screen.

Due to described electrode block 11 be formed by wave be class cross, therefore, when signal transmits, the load delay time is relatively short, thereby sweep speed is speeded, and report point rate is high, to-noise ratio is large, and in described electrode block 12, the part adjacent with electrode block 11 is also wave, and intermeshing, form a space in its region between the two, in described space, be provided with suspension piece 13, described suspension piece 13 is also made up of wave, and intermeshing with the wave on electrode block 11 and electrode block 12. Because the wave place of the electrode block in electrode and Y-direction on described directions X is intermeshing, thus cause the coupling of touch-screen to strengthen, thus signal strengthens.

On the wave of described electrode block 11 and electrode block 12, between any one limit and directions X or Y-direction, be formed with certain angle, and be acute angle, because this angle also directly determines the angle of wave on suspension piece 13, prove through repeated tests, on the wave of described electrode block 11 and electrode block 12, between any one limit and directions X or Y-direction, be 45 to there is best effect while spending, not only having overcome touch-screen is arranged on after liquid crystal display, when the upset of liquid crystal molecule on liquid crystal display with the visual angle problem of the electrode generation of touch-screen, and convenient while calculating the position of touch point.

Because described electrode block 11 is the class cross of wave, therefore determine the number of described suspension piece 13, one or two are preferably set. The material that described suspension piece 11 adopts is identical with the material of touch screen electrode, is all ITO, so not only can increase Capacitance Coupled, strengthens the antijamming capability of described whole electrode layer, and can improve sensitivity, the linearity and the water resistance of electrode layer.

In touch screen electrode layout of the present invention, electrode block shape difference on described both direction, and be all symmetry shape, therefore not only strengthened the coupling of touch-screen, and the linearity of touch-screen also can improve greatly, moreover, suspension piece is also set between the electrode block on both direction, thereby effectively solve the suspension problem of touch-screen, meanwhile, overcome again when the liquid crystal molecule on liquid crystal display overturns and the visual angle problem of the electrode generation of touch-screen. Above, only introduce most preferred embodiment of the present invention, be therefore not limited to said structure, all should be in protection scope of the present invention therefore adopt similar structures to reach the electrode lay-out structure of same effect.

Claims

1. one kind comprises the touch-screen of electrode, described electrode comprises some directions X electrodes and some Y-direction electrodes, and described directions X electrode and Y-direction electrode form by some electrode blocks, it is characterized in that: described directions X electrode block is the class cross of wave wire, described Y-direction electrode block is the class rhombus of part wave wire, the described two wavy places of electrode block are intermeshing, form a space in its region between the two, are provided with suspension piece in described space.

2. touch-screen as claimed in claim 1, is characterized in that: described suspension piece is also made up of wave, intermeshing with the wave of directions X electrode block and Y-direction electrode block.

3. touch-screen as claimed in claim 1, is characterized in that: described Y-direction electrode block center is hollowed out, and its inside is provided with suspension piece.

4. touch-screen as claimed in claim 3, is characterized in that: described suspension piece is rectangular.

5. touch-screen as claimed in claim 1, is characterized in that: in described space, be provided with one or two suspension pieces.

6. touch-screen as claimed in claim 1 or 2, is characterized in that: described directions X electrode block and Y-direction electrode block are all symmetric form.

7. touch-screen as claimed in claim 1 or 2, is characterized in that: on the wave of described directions X electrode block and Y-direction electrode block, between any one limit and directions X or Y-direction, be formed with certain angle, and be acute angle.

8. touch-screen as claimed in claim 7, is characterized in that: described angle is 45 degree.

9. touch-screen as described in any one in claim 1-5, is characterized in that: the material that described suspension piece adopts is identical with the material of touch screen electrode.