CN102929464B - A kind of touch panel device and touch-screen body thereof - Google Patents

A kind of touch panel device and touch-screen body thereof Download PDF

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Publication number
CN102929464B
CN102929464B CN201210446087.6A CN201210446087A CN102929464B CN 102929464 B CN102929464 B CN 102929464B CN 201210446087 A CN201210446087 A CN 201210446087A CN 102929464 B CN102929464 B CN 102929464B
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China
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touch
pole electrode
electrode
described
pole
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CN201210446087.6A
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Chinese (zh)
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CN102929464A (en
Inventor
郭明
李华
王朋
刘辉
刘伯政
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敦泰科技有限公司
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Abstract

The embodiment of the invention discloses touch panel device and touch-screen body thereof, be applied to technical field of electronic equipment.The touch-screen body of touch panel device is provided with the mutual capacitance being arranged in array, and the mutual capacitance on each node is made up of the X pole of heteropole each other and Y pole electrode; Each row in the array comprise m X pole electrode and n Y pole electrode, here n and m be greater than 1 natural number; M X pole electrode is divided into multi-group electrode, and often organizing electrode, to be connected to touch-screen respectively by extension line external, and wherein at least two arrays of electrodes comprises the X pole electrode of at least two adjacent connections; It is external that n Y pole electrode is connected to touch-screen respectively by extension line; The X pole electrode of adjacent connection forms mutual capacitance from different Y pole electrodes respectively.Only draw by one group of X pole electrode of adjacent connection in every row mutual capacitance the quantity that an extension line can reduce extension line, simplify the structure of the touch-screen body of touch panel device, be conducive to the touch performance promoting touch panel device.

Description

A kind of touch panel device and touch-screen body thereof

Technical field

The present invention relates to technical field of electronic equipment, particularly touch panel device and touch-screen body thereof.

Background technology

Along with the development of touch-screen, capacitive touch screen is applied more and more widely in terminal device, in existing capacitance type touch screen equipment, the multiple point touching of touch panel device can be realized by mono-layer oxidized indium tin (ITO) mutual capacitance arranged on touch-screen body.

With reference to what to Figure 1 shows that in touch panel device mutual capacitance on individual layer, pattern is set, wherein, each row comprises a Y pole electrode and multiple X poles electrode (electrode as the X pole of a to f in Fig. 1), and a Y pole electrode and an X pole electrode form a mutual capacitance, and it is external that each X pole and Y pole electrode need to be drawn out to touch-screen by extension line, and be connected with touch-control circuit in touch panel device, and the X pole electrode of every a line needs to link together.Above-mentioned X pole and Y very heteropole, be specially negative electrode or anode.

Visible, in the design of the individual layer mutual capacitance of existing touch panel device, need to be drawn out to touch-screen by extension line on each electrode external, if the electrode arranged on touch-screen body is many, then extension line is more, usually, all more than 150, extension line more so not only makes the structure at touch-screen body place in touch panel device loaded down with trivial details, and is unfavorable for the lifting for touch panel device performance.

Summary of the invention

The embodiment of the present invention provides touch panel device and touch-screen body thereof, simplifies the structure of touch-screen body in touch panel device.

The embodiment of the present invention provides a kind of touch-screen body of touch panel device,

Described touch-screen body is provided with the mutual capacitance being arranged in array, and the mutual capacitance on each node is made up of the X pole of heteropole each other and Y pole electrode;

Each row in described array comprise m X pole electrode and n Y pole electrode, described n and m be greater than 1 natural number;

Described m X pole electrode is divided into multi-group electrode, and often organizing electrode, to be connected to described touch-screen respectively by extension line external, and wherein at least two arrays of electrodes comprises the X pole electrode of at least two adjacent connections; It is external that described n Y pole electrode is connected to described touch-screen respectively by an extension line;

The X pole electrode of described adjacent connection forms mutual capacitance from different Y pole electrodes respectively.

The embodiment of the present invention provides a kind of touch panel device, comprises cover plate, touch-screen body and display, and described touch-screen body is provided with the mutual capacitance being arranged in array, and the mutual capacitance on each node is made up of the X pole of heteropole each other and Y pole electrode;

Each row in described array comprise m X pole electrode and n Y pole electrode, described n and m be greater than 1 natural number;

Described m X pole electrode is divided into multi-group electrode, and often organizing electrode, to be connected to described touch-screen respectively by extension line external, and wherein at least two arrays of electrodes comprises the X pole electrode of at least two adjacent connections; It is external that described n Y pole electrode is connected to described touch-screen respectively by an extension line;

The X pole electrode of described adjacent connection forms mutual capacitance from different Y pole electrodes respectively.

Visible, the touch-screen body of the touch panel device of the embodiment of the present invention is provided with the mutual capacitance being arranged in array, and the mutual capacitance on each node is made up of the X pole of heteropole each other and Y pole electrode; Each row in the array comprise m X pole electrode and n Y pole electrode, here n and m be greater than 1 natural number; M X pole electrode is divided into multi-group electrode, and often organizing electrode, to be connected to touch-screen respectively by extension line external, and wherein at least two arrays of electrodes comprises the X pole electrode of at least two adjacent connections; It is external that n Y pole electrode is connected to touch-screen respectively by extension line; The X pole electrode of adjacent connection forms mutual capacitance from different Y pole electrodes respectively.The one group of X pole electrode passing through adjacent connection in often row mutual capacitance so only draws the quantity that an extension line can reduce extension line, thus simplifies the structure of the touch-screen body of touch panel device, is conducive to the touch performance promoting touch panel device.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 be in the touch panel device of prior art on individual layer mutual capacitance pattern is set;

Fig. 2 be in the touch panel device that provides of the embodiment of the present invention on individual layer mutual capacitance pattern is set;

Fig. 3 is the composition structural drawing of mutual capacitance in the embodiment of the present invention;

Fig. 4 is the another kind composition structure of a row mutual capacitance in the embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

The embodiment of the present invention provides a kind of touch panel device, this touch panel device can be mobile phone, GPS (GlobalPositioningSystem, GPS) equipment, or the capacitance type touch screen equipment such as palm PC, its structure comprises cover plate, touch-screen body and display, and stack successively from outside to inside (the touch panel device part that user can see is outer), be appreciated that touch panel device can also comprise other structural rate as controlled the touch-control circuit etc. of touch panel device operation and display.Its cover plate is being exposed at the outer visible part of user of touch panel device, is mainly used to the device such as touch-screen body and the display etc. that provide the touch of user and protect in touch panel device; Touch-screen body is mainly used for carrying mutual capacitance and metal routing etc., when user touches the cover plate be exposed, the mutual capacitance overlayed on the touch-screen body below cover plate can change due to extruding, and the touch-control circuit comprised at touch panel device then can determine the touch operation of user to touch panel device according to the change of mutual capacitance; Display is mainly used to display.

Wherein, with reference to Figure 2 shows that the individual layer mutual capacitance pattern that touch-screen body 14 is arranged, particularly:

Touch-screen body 14 is provided with the mutual capacitance 10 being arranged in array, and the mutual capacitance 10 on each node is made up of the X pole electrode 11 of heteropole each other and Y pole electrode 12, and wherein X pole electrode 11 can be negative electrode or anode, if with Y pole electrode 12 heteropole each other.

In the above-mentioned array be arranged in, each row comprises m X pole electrode 11 (electrode a to f as shown in Figure 2) and n Y pole electrode 12 (electrode 1 to 8 as shown in Figure 2), here n and m be greater than 1 natural number.Wherein, m X pole electrode 11 is divided into multi-group electrode, and often group electrode is connected to outside touch-screen body 14 respectively by extension line 13, wherein, often organize all corresponding extension line 13 of electrode, and some group electrode only includes an X pole electrode 11, some group electrode comprises multiple X poles electrode 11, but need to ensure that at least two arrays of electrodes comprises the X pole electrode 11 of at least two adjacent connections, the X pole electrode 11 of adjacent connection is here that position that X pole electrode 11 is arranged on touch-screen body 14 is adjacent and connect, and connection more adjacent than X pole electrode b and c as shown in Figure 2; N Y pole electrode 12 is connected to outside touch-screen body 14 respectively by extension line 13.The electrode of each row above-mentioned is all connected to outside touch-screen body 14 respectively by extension line 13, this extension line 13 other anatomical connectivity that can comprise with touch panel device like this, such as be connected with touch-control circuit, make touch-control circuit according to the change between the electrode of the mutual capacitance 10 connected by extension line 13, the touch of user to touch panel device can be determined.

In m X pole electrode 11 of above-mentioned row, the X pole electrode 11 of adjacent connection forms a kind of mutual capacitance 102 from different Y pole electrodes 12 respectively, and in such as Fig. 2, in the first row of array, X pole electrode b and c forms a kind of mutual capacitance 102 with Y pole electrode 2 and 1 respectively; And unconnected X pole electrode 11 forms another kind of mutual capacitance 101 respectively in m X pole electrode 11 with same Y pole electrode 12, in such as Fig. 2, in the first row of array, X pole electrode a and e forms another kind of mutual capacitance 101 with Y pole electrode 2 respectively.The quantity n of Y pole electrode 12 included in such row is in wherein one group of electrode of this m X pole electrode composition, the quantity maximal value of the X pole electrode 11 of adjacent connection, such as have the X pole electrode 11 of X pole electrode 11 connection adjacent with 3 comprising 2 adjacent connections in two arrays of electrodes respectively in a column, then in these row, the quantity n of Y pole electrode 12 is 3.

It should be noted that, shown in figure 3, in above-mentioned array, every a line X pole electrode 11 is connected to after outside touch-screen body 14 by extension line 13, can link together thus realize multiple point touching, and above-mentioned X pole electrode 11 and Y pole electrode 12 form mutual capacitance 10 refers to that the location comparison of X pole electrode 11 and Y pole electrode 12 is close, thus form electric field.Further, in order to save the quantity of extension line 13, between the adjacent column of the array be arranged in mutual capacitance 10, two X pole electrodes 11 can share an extension line 13, and these two X pole electrodes 11 need to be the close X pole electrode of location comparison, in such as Fig. 2, between the X pole electrode f of array first row and the X pole electrode f of secondary series, share an extension line 13.

Shown in figure 1, the pattern of individual layer mutual capacitance is in the prior art applied in actual touch screen equipment, suppose often to arrange employing 6 X pole electrodes and 1 Y pole electrode in the array of arrangement, this array has 4 row, the X pole electrode f between adjacent two row is wherein had to share an extension line, total (2*6-1) * 2 of extension line that then X pole electrode pair is answered is 22, total (2*6-1) * 2+4 bar that is 26 of the extension line that this touch-screen body is corresponding, shown in figure 2, the pattern of individual layer mutual capacitance in the invention described above embodiment is applied in actual touch screen equipment, employing 6 X pole electrodes 11 and 2 Y pole electrodes 12 are often arranged in the array that mutual capacitance 10 arranges, this array has 4 row, wherein two arrays of electrodes is had to comprise the X pole electrode of 2 adjacent connections in row, and have the X pole electrode f between adjacent two row to share an extension line 13, then the extension line of X pole electrode 11 correspondence has (2*6-2*2-1) * 2 namely 14, total (2*6-2*2-1) * 2+4*2 bar that is 22 of extension line 13 of this touch-screen body 14 correspondence, relative to prior art, X pole electrode pair answers extension line 13 to decrease 8, the extension line 13 of touch-screen body 14 correspondence reduces 4 altogether.

The information being X pole electrode and Y pole electrode in array by being arranged in due to the location of mutual capacitance in prior art carrys out the mutual capacitance of a unique identification node, the coordinate algorithm that can adapt to for mutual capacitance in touch panel device to make the above-mentioned mutual capacitance pattern in the embodiment of the present invention, need the information list storing mutual capacitance 10 on each node in array in the storer comprised at touch panel device, the information of the mutual capacitance 10 wherein on each node comprises: the first identification information determined by the information of this mutual capacitance 10 row and column in an array, and with the corresponding relation of the second identification information that the composition X pole electrode 11 place group of this mutual capacitance 10 and the information (also can be the information of X pole electrode 11 and the corresponding extension line of Y pole electrode 12) of Y pole electrode 12 are determined, or the information of mutual capacitance 10 on each node comprises: the first identification information determined by the information of mutual capacitance residing row and column in an array, and with forming the corresponding relation of the 3rd identification information that the X pole electrode of this mutual capacitance and the information of Y pole electrode are determined.

Particularly, if the mutual capacitance pattern shown in employing Fig. 2, then the first identification information and the second identification information can respectively as shown in following tables 1 and 2, first identification information and the second identification information respectively can each mutual capacitance in unique identification array, two of a mutual capacitance kinds of identification means are mapped, after the coordinate algorithm of existing mutual capacitance can be adopted, can uniquely find this mutual capacitance:

Table 1

Table 2

Need to illustrate and further illustrate, the extension line 13 that above-mentioned X pole electrode 11 and Y pole electrode 12 are drawn respectively can be tin indium oxide (ITO) layer etc., specifically can is connected on touch-screen body 14 by metal level and be connected to outside touch-screen body 14.

In visible employing the present embodiment, the pattern of individual layer mutual capacitance can reduce the quantity of extension line, facts have proved if the electrode group of the X pole electrode 11 of the adjacent connection that each row comprises is more on touch-screen body, the extension line quantity then reduced is more, and when in one group of electrode of each row, the quantity of the X pole electrode 11 of adjacent connection is 2, the touch resolution of touch panel device is best.In sum, in the embodiment of the present invention, scheme only draws mainly through one group of X pole electrode of adjacent connection in every row mutual capacitance the quantity that an extension line can reduce extension line, thus simplify the structure of the touch-screen body of touch panel device, be conducive to the touch performance promoting touch panel device.

In actual applications, can be as shown in Figure 2 in the array that mutual capacitance 10 is arranged in, the X pole electrode 11 of two adjacent connections is comprised at most in the X pole electrode group often arranged, in other embodiments, the X pole electrode 11 of 3 adjacent connections can be comprised in the X pole electrode group often arranged, shown in figure 4, one row comprise 3 Y pole electrodes 12 and 4 groups of X pole electrode groups, wherein there are two groups of X pole electrodes 11 comprising 3 adjacent connections respectively, other two groups comprise 1 X pole electrode 11 respectively, the then X pole electrode a of non-conterminous connection, b, g and h forms mutual capacitance with same Y pole electrode 3 respectively, the X pole electrode b of adjacent connection in same group, c and d respectively from different Y pole electrodes 3, 2 and 1 composition mutual capacitance.But in actual applications in order to ensure the touch rate respectively of touch panel device, general one group of X pole electrode group adopts at most the X pole electrode 11 of two adjacent connections.

The embodiment of the present invention also provides a kind of touch-screen body of touch panel device, the structural representation of this touch-screen body as shown in Figure 2, touch-screen body 14 is provided with the mutual capacitance 10 being arranged in array, and the mutual capacitance 10 on each node is made up of the X pole electrode 11 of heteropole each other and Y pole electrode 12.

Each row in an array comprise m X pole electrode 11 and n Y pole electrode 12, here n and m be greater than 1 natural number, m X pole electrode is divided into multi-group electrode, and often group electrode is connected to outside touch-screen body 14 respectively by extension line 13, wherein at least two arrays of electrodes comprises the X pole electrode 11 of at least two adjacent connections; N Y pole electrode 12 connects outside 13 to described touch-screen body 14 respectively by extension line.The X pole electrode 11 of adjacent connection forms unconnected X pole electrode 11 in mutual capacitance 10, m X pole electrodes 11 respectively and forms mutual capacitance 10 with same Y pole electrode 12 respectively from different Y pole electrodes 12.

And the concrete structure of this touch-screen body 14 is as described in above-described embodiment, does not repeat at this.

The touch panel device provided the embodiment of the present invention above and touch-screen body thereof are described in detail, apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (8)

1. a touch-screen body for touch panel device, is characterized in that,
Described touch-screen body is provided with the mutual capacitance being arranged in array, and the mutual capacitance on each node is made up of the X pole of heteropole each other and Y pole electrode;
Each row in described array comprise m X pole electrode and n Y pole electrode, described n and m be greater than 1 natural number;
Described m X pole electrode is divided into multi-group electrode, and often organizing electrode, to be connected to described touch-screen respectively by an extension line external, and wherein at least two arrays of electrodes comprises the X pole electrode of at least two adjacent connections; It is external that described n Y pole electrode is connected to described touch-screen respectively by extension line;
The X pole electrode of described adjacent connection forms mutual capacitance from different Y pole electrodes respectively.
2. touch-screen body as claimed in claim 1, it is characterized in that, in described m X pole electrode, unconnected X pole electrode forms mutual capacitance with same Y pole electrode respectively.
3. touch-screen body as claimed in claim 1, it is characterized in that, the extension line that described X pole electrode and Y pole electrode are drawn respectively is connected on described touch-screen body by metal level.
4. touch-screen body as claimed in claim 1, it is characterized in that, described extension line is the extension line of tin indium oxide ITO.
5. touch-screen body as claimed in claim 1, is characterized in that, described n is in wherein one group of electrode of described m X pole electrode composition, the quantity maximal value of the X pole electrode of adjacent connection.
6. touch-screen body as claimed in claim 1, is characterized in that, between the adjacent column of described array, two X pole electrodes share an extension line.
7. a touch panel device, is characterized in that, comprises cover plate, touch-screen body and display, and described touch-screen body is the touch-screen body as described in any one of claim 1 to 6.
8. touch panel device as claimed in claim 7, it is characterized in that, described touch panel device also comprises storer, stores the information list of mutual capacitance on each node in described array in described storer;
The information of the mutual capacitance wherein on each node comprises the first identification information determined by the information of this mutual capacitance residing row and column in described array, and with forming the corresponding relation of the second identification information that the X pole electrode place group of this mutual capacitance and the information of Y pole electrode are determined; Or comprise the first identification information determined by the information of this mutual capacitance residing row and column in described array, and with forming the corresponding relation of the 3rd identification information that the X pole electrode of this mutual capacitance and the information of Y pole electrode are determined.
CN201210446087.6A 2012-11-08 2012-11-08 A kind of touch panel device and touch-screen body thereof CN102929464B (en)

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CN103246422B (en) * 2013-05-21 2016-10-26 敦泰科技有限公司 A kind of touch panel device and touch screen body thereof
US9557361B2 (en) 2013-05-29 2017-01-31 Atmel Corporation Edgeless single-layer touch sensor
CN103793121B (en) * 2014-03-07 2017-04-26 敦泰科技有限公司 Single-layer multi-point capacitive touch screen
CN104049820B (en) * 2014-04-24 2017-09-22 敦泰科技有限公司 Single-layer touch screen, touch panel device and electronic installation
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CN104281342B (en) * 2014-05-05 2017-07-21 敦泰科技有限公司 Individual layer mutual capacitance sensing device and electronic installation
CN104020912B (en) * 2014-05-30 2017-02-15 京东方科技集团股份有限公司 Capacitive touch structure, embedded touch screen, display device and scanning method of display device
TWI569194B (en) * 2014-09-30 2017-02-01 瑞鼎科技股份有限公司 Capacitive touch panel having single-layer touch sensor
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