CN102915155B

CN102915155B - A kind of electrode lay-out of touch-screen

Info

Publication number: CN102915155B
Application number: CN201210423130.7A
Authority: CN
Inventors: 杜小雷
Original assignee: Suzhou Pixcir Microelectronics Co Ltd
Current assignee: Suzhou Pixcir Microelectronics Co Ltd
Priority date: 2012-10-30
Filing date: 2012-10-30
Publication date: 2016-05-11
Anticipated expiration: 2032-10-30
Also published as: CN102915155A

Abstract

The present invention relates to 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 electrode block is calabash shaped and is centrosymmetric octagon, two electrode blocks in two electrode blocks on described adjacent directions X and Y-direction form a space, are provided with suspension piece in described space. 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.

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 electrode block is calabash shaped and is centrosymmetric octagon, two electrode blocks in two electrode blocks on described adjacent directions X and Y-direction form a space, are provided with suspension piece in described space.

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.

Detailed description of the invention

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

Please refer to shown in Fig. 1, touch screen electrode layout of the present invention, described electrode comprises some directions X electrodes and some Y-direction electrodes, electrode on directions X is followed successively by X1, X2..., electrode in Y-direction is followed successively by Y1, Y2..., described directions X electrode and Y-direction electrode form by some electrode blocks 10, described electrode block 10 is calabash shaped and is centrosymmetric octagon, described some directions X electrodes and some Y-direction electrodes are all laid in the homonymy of substrate, if and some electrode blocks 10 of described directions X electrode interconnect, some electrode blocks 10 of so described Y-direction electrode interconnect by the mode of bridge joint.

Because described electrode block 10 is calabash shaped, so the loins place of described electrode block 10 distance is the narrowest, put a the narrowest with the distance of putting b place, therefore for two adjacent electrode pieces 10 in two adjacent electrode pieces 10 and Y-direction on directions X, the region that the loins position of described four electrode blocks 10 surrounds can form a space, is provided with suspension piece 11 in described space. described suspension piece 11 assumes diamond in shape, and two limits adjacent with electrode block 10 loins places, two limits of described suspension piece 11 are parallel to each other. for the quantity of the piece 11 that ensures to suspend, between any one limit of described electrode block 10 loinss and directions X or Y-direction, be formed with certain angle, and be acute angle, because this angle also directly determines an angle of suspension piece 11, prove through repeated tests, between any one limit of described electrode block 10 loinss 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, moreover, because electrode block 10 is to be lageniform Central Symmetry octagon, 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.

Because described suspension piece 11 is arranged on the center by four electrode block 10 compositing areas, so can solve the suspension problem of touch-screen; Moreover, in order better to overcome suspension problem, therefore several suspension pieces 11 can be set, its concrete quantity is determined by the impedance area of described electrode block 10 loins a, b place distance. 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, described electrode block is calabash shaped and is centrosymmetric octagon, therefore not only strengthened the coupling of touch-screen, and the linearity of touch-screen also can be improved greatly, moreover, in the space being formed by above-mentioned four electrode blocks, suspension piece is set, thereby has effectively solved 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. 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 electrode block is calabash shaped and is centrosymmetric octagon, two electrode blocks in two electrode blocks on described adjacent directions X and Y-direction form a space, are provided with suspension piece in described space.

2. the electrode lay-out of touch-screen as claimed in claim 1, is characterized in that: described space is the region being surrounded by the loins position of the electrode block of the electrode block of two directions X electrodes and two Y-direction electrodes.

3. the electrode lay-out of touch-screen as claimed in claim 1 or 2, is characterized in that: in described space, be provided with the suspension piece that several assume diamond in shape, its concrete quantity is determined by the impedance area of described electrode block loins place distance.

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

5. the electrode lay-out of touch-screen as claimed in claim 3, is characterized in that: the both sides adjacent with described electrode block loins place, two limits of described suspension piece are parallel to each other.

6. the electrode lay-out of touch-screen as claimed in claim 1 or 2, is characterized in that: the angle that any one limit of described electrode block loins and directions X or Y-direction form is acute angle.

7. the electrode lay-out of touch-screen as claimed in claim 6, is characterized in that: the angle of described angle is 45 degree.

8. the electrode lay-out of touch-screen as claimed in claim 1, is characterized in that: the material that described suspension piece adopts is identical with the material of touch screen electrode.