CN102945098A

CN102945098A - Electrode layout of touch screen

Info

Publication number: CN102945098A
Application number: CN201210495786XA
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: 2013-02-27
Anticipated expiration: 2032-11-29
Also published as: CN102945098B

Abstract

The invention relates to an electrode layout of a touch screen. An electrode comprises a plurality of X direction electrodes and a plurality of Y direction electrodes, the X direction electrodes and the Y direction electrodes are all composed of a plurality of electrode blocks, the X direction electrode blocks in shapes of similar crosses which are waved, the Y direction electrode blocks are in shapes of diamonds which are partially waved, wavy positions of the X direction electrode blocks and the Y direction electrode blocks are mutually meshed, gaps are formed in areas between the X direction electrode blocks and the Y direction electrode blocks, and a suspension block is arranged in the gap. The electrode layout of the touch screen solves the visual angle problem in the appearance, solves the suspension problem of the touch screen, and simultaneously improves scanning speed and point reporting rate further.

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 the development of science and technology, touch-screen has replaced the mechanical type push button panel gradually becomes the new operation interfaces of electronic equipment such as mobile phone, notebook.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 be by touch object as the conductive material such as finger, pointer near or the touching touch-screen capacitance of touch-screen is changed, when 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 usually, the joining formation node of transverse electrode and quilt other access are to determine the position of one or one above touch point, can use the transparency electrode of tin indium oxide (ITO) for example or transparent conductive polymer to form node matrix equation, other electrode lay-out can utilize nonoverlapping electrode pattern (bar paten, such as Chinese patent ZL201110380887 and flakes pattern, such 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 in the space that described bar paten forms, be filled with the suspension piece, 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 the user finds in use, because the liquid crystal molecule on the liquid crystal display is in continuous upset, just with touch-screen on electrode produced the visual angle problem, the user can obviously see the suspension piece on the display, causes outward appearance to have certain flaw; And for adopting the flakes pattern, because alabastrine branch can cause resistance to increase, the load delay time is elongated, thereby can affect sweep velocity and newspaper point rate, so this kind 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 matters to be solved by this invention is how to provide a kind of in appearance without the visual angle problem, and can improve the touch screen electrode layout of sweep velocity and newspaper 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 cruciform of wave wire, and described Y-direction electrode block is the class rhombus of part wave wire, and the wavy place of described two electrode blocks is intermeshing, form a space in its zone between the two, be provided with the suspension piece in the described space.

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

Description of drawings

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

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

Embodiment

The present invention is further illustrated below in conjunction with drawings and Examples.

Please illustrated in figures 1 and 2 in conjunction with reference, touch screen electrode layout of the present invention, described electrode comprises some directions X electrodes and some Y-direction electrodes, and the electrode on the directions X is followed successively by X1, X2..., and the electrode on the Y-direction is followed successively by Y1, Y2..., described directions X electrode is comprised of some electrode blocks 11, the Y-direction electrode is comprised of some electrode blocks 12, and described electrode block 11 is the class cruciform, is the wave wire, described electrode block 12 is the class diamond shaped, and its part is wave.Insulation course between described directions X electrode and the Y-direction electrode, all be laid in the substrate, for fear of the mutual conduction between the 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 all are symmetric form, so since, also increased the antijamming capability of capacitive coupling 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 useful area of the piece 14 that reduces to suspend and the enhancement ratio of making an uproar, described suspension piece 14 can arrange several, so, not only overcome the suspension problem of touch-screen, also strengthened the linearity of touch-screen.

Because described electrode block 11 is to be the class cruciform by what wave consisted of, when therefore signal transmitted, the load delay time was relatively short, thereby sweep velocity is speeded, and newspaper point rate is high, property is made an uproar than greatly, and the part adjacent with electrode block 11 also is wave in the described electrode block 12, and intermeshing, form a space in its zone between the two, be provided with suspension piece 13 in the described space, described suspension piece 13 also is made of wave, and intermeshing with the wave on electrode block 11 and the electrode block 12.Because the electrode on the described directions X and the wave place of the electrode block on the Y-direction are intermeshing, thus cause the coupling of touch-screen to strengthen, thus signal strengthens.

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

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

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

Claims

1. the electrode lay-out of a 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, it is characterized in that: described directions X electrode block is the class cruciform of wave wire, described Y-direction electrode block is the class rhombus of part wave wire, the wavy place of described two electrode blocks is intermeshing, forms a space in its zone between the two, is provided with the suspension piece in the described space.

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

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

4. the electrode lay-out of touch-screen as claimed in claim 3, it is characterized in that: described suspension piece is rectangular.

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

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

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

8. the electrode lay-out of touch-screen as claimed in claim 7, it is characterized in that: described angle is 45 degree.

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