CN201477563U - Resistance type touch panel - Google Patents

Abstract

A resistive touch panel includes a first panel, a second panel and a voltage detection module. The touch control panel module is distributed on the lower surface of the first panel, wherein the touch control panel module is provided with a plurality of independent conductive blocks, and each conductive block comprises an induction line; the second panel is provided with a bias layer module corresponding to the touch pad module, wherein the bias layer module is provided with at least four bias points so as to form bias in a first direction and a second direction respectively; the voltage detection module is electrically connected with the induction lines of the first panel respectively so as to detect the voltage value of the conductive block.

Description

Resistive Touch Panel

technical field

The utility model relates to a touch panel, in particular to a resistive touch panel.

Background technique

With the advancement of technology, electronic devices with touch panels such as personal digital assistants (PDAs), mobile phones, and tablet notebook computers are becoming more and more popular. Touch panels on the market can be divided into several categories according to their design principles. , and the most representative touch panel is a resistive touch panel.

The principle of the resistive touch panel is to use a finger or any object to press the surface of the touch panel, so that the conductive layer inside the touch panel will generate a voltage drop, and then detect the touched position on the surface of the touch panel. Please refer to Figure 1, Fig. 1 is a schematic diagram of components of a resistive touch panel 100 in the prior art. The resistive touch panel 100 includes a first layer 11 , a second layer 12 and a control detection module 13 .

Two bias lines 111 are disposed on the lower surface of the first layer 11 along both sides of the first direction S1 , and the two bias lines 111 are electrically connected to the control detection module 13 by wires 112 . Two bias lines 121 are disposed on the upper surface of the second layer board 12 along both sides of the second direction S2 , and the two bias lines 121 are electrically connected to the control detection module 13 by wires 122 .

When the resistive touch panel 100 is working, the control detection module 13 will alternately provide a bias value of the bias voltage line 111 and the bias voltage line 121 , when the touch panel 100 is touched by an external force on the position P1 on the first layer 11 , the first laminate 11 deforms and touches the second laminate 12 at the position P2.

When the control detection module 13 provides the bias voltage of the bias line 111, the control detection module 13 receives the position voltage signal through the wire 122, and judges the position of the touch point in the first direction S1 by means of resistance voltage division; When the detection module 13 provides the bias voltage of the bias line 121 , the detection module 13 is controlled to receive the voltage drop through the wire 112 , and judges the position of the touch point in the second direction S2 by means of resistance voltage division. In other words, the position coordinates of the touch point can be obtained comprehensively from the position of the touch point in the first direction S1 and the second direction S2.

However, since the resistive touch panel 100 of the prior art has only one set of wires 112, 122 on the first layer 11 and the second layer 12, if the resistive touch panel 100 is touched by an external force, the wires on the first layer 11 and the second layer 12 will be connected respectively. The laminate 11 and the second laminate 12 generate touch points P1, P2, and an external force is applied to touch the resistive touch panel 100 to generate touch points P3, P3, respectively on the first laminate 11 and the second laminate 12. P4, the wire 112 and the wire 122 cannot transmit back the voltage drop generated by the two touch points at the same time, so the resistive touch panel 100 in the prior art cannot simultaneously determine multiple touch points.

In view of the above, the existing resistive touch panel uses the first layer board and the second layer board to provide the bias voltage in the first direction and the second direction respectively, and when one of the boards provides the bias voltage, the other layer board is used to provide the bias voltage. The board transmits the position voltage signal generated by the touch point, but since the first layer board and the second layer board both have only one wire, it is impossible to detect multiple touch points at the same time.

Utility model content

Technical problem and purpose that the utility model intends to solve:

In view of the above, the existing resistive touch panel has the disadvantage of being unable to detect multiple touch points at the same time.

Therefore, the main purpose of the present invention is to provide a resistive touch panel, the resistive touch panel has a plurality of conductive areas, so as to provide a voltage detection module to detect the voltage values of a plurality of touch points.

The technical means of the utility model to solve the problem:

In order to achieve the above purpose, the utility model provides a resistive touch panel, which is characterized in that it includes:

A first panel, the lower surface of which is provided with a touch panel module, wherein the touch panel module has a plurality of independent conductive blocks, and each of the conductive blocks includes a sensing line;

A second panel, having a bias layer module corresponding to the touch panel module, wherein the bias layer module has at least four bias points, and is used to respectively form bias voltages in a first direction and a second direction ;as well as

A voltage detection module is respectively electrically connected with the above-mentioned sensing lines of the first panel to detect the voltage values of the conductive blocks.

The above-mentioned resistive touch panel is characterized in that the first panel is one of a polyethylene terephthalate panel or a glass panel.

The above-mentioned resistive touch panel is characterized in that the touch panel module is formed by coating at least one of indium tin oxide and antimony tin oxide on the first panel.

The above-mentioned resistive touch panel is characterized in that the second panel is one of a polyethylene terephthalate panel or a glass panel.

The above-mentioned resistive touch panel is characterized in that the bias layer module is formed by coating at least one of indium tin oxide and antimony tin oxide on the second panel.

The above-mentioned resistive touch panel is characterized in that the bias layer module is a planar resistor.

The above-mentioned resistive touch panel is characterized in that the bias points of the second panel are respectively arranged on the edge of the bias layer module.

The above-mentioned resistive touch panel is characterized in that the bias points are respectively set at the edge corners of the bias layer module.

The above-mentioned resistive touch panel is characterized in that the first direction and the second direction are orthogonal to each other.

The above-mentioned resistive touch panel is characterized in that the resistive touch panel further includes a control module, and the control module is electrically connected with the bias points of the second panel to respectively provide the bias points bias value.

The above-mentioned resistive touch panel is characterized in that the control module is electrically connected to the voltage detection module, and determines the position of at least one touch point according to the voltage values of the conductive blocks detected by the voltage detection module.

The above-mentioned resistive touch panel is characterized in that the conductive blocks are arranged according to a sensing matrix.

The above-mentioned resistive touch panel is characterized in that the sensing matrix is arranged in a square matrix.

The above-mentioned resistive touch panel is characterized in that the sensing matrix is arranged as a matrix.

The utility model compares the effect of the prior art:

Compared with the existing resistive touch panel, the utility model arranges a touch panel module with a plurality of independent conductive blocks on the lower surface of the first panel, and connects each conductive block with a sensing line to When the area corresponding to the bias layer module is touched, the voltage detection module detects its voltage value. Therefore, the resistive touch surface of the present invention can simultaneously detect the position of at least one touch point to achieve multi-point input effect, which further makes the use of the resistive touch panel of the present invention more diversified.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

FIG. 1 is a schematic diagram of components of a resistive touch panel in the prior art;

2 is a schematic diagram of components of a resistive touch panel according to a first embodiment of the present invention; and

FIG. 3 is a schematic diagram of components of a resistive touch panel according to a second embodiment of the present invention.

Among them, reference signs

Resistive Touch Panel 100

First layer board 11

Bias line 111

Wire 112

Second layer 12

Bias line 121

Wire 122

Control detection module 13

Touch points P1, P2, P3, P4

Resistive Touch Panel 200, 200’

first panel 21

Touchpad Module 211

Conductive blocks 2111, 2111'

Induction line 2112

second panel 22

Bias layer module 221

Bias point 2211

Voltage detection module 23

control module 24

Touch points P5, P6, P7, P8

First direction S1

Second direction S2

Detailed ways

The utility model relates to a touch panel, in particular to a resistive touch panel. Two preferred embodiments are listed below to illustrate the utility model, but those skilled in the art know that these are only two examples, and are not intended to limit the utility model itself. The content of this preferred embodiment is described in detail as follows.

Please refer to FIG. 2 . FIG. 2 is a schematic diagram of components of a resistive touch panel 200 according to a first embodiment of the present invention. The resistive touch panel 200 includes a first panel 21 , a second panel 22 and a voltage detection module 23 .

A touch panel module 211 is disposed on the lower surface of the first panel 21 , wherein the touch panel module 211 has a plurality of independent conductive blocks 2111 , and each conductive block 2111 includes a sensing line 2112 . Wherein, the first panel 21 can be one of a polyethylene terephthalate (polyethyleneterephthalate; PET) panel or a glass panel, and the touch panel module 211 can be an indium tin oxide (Indium Tin Oxide) ; ITO) coated product or an antimony tin oxide (Antimony DopedTin Oxide; ATO) coated product. Wherein, the conductive blocks 2111 are arranged according to a sensing matrix, preferably in this embodiment, the sensing matrix arrangement can be a square matrix or a matrix.

The second panel 22 has a bias layer module 221 corresponding to the touch panel module 211 . Wherein, the bias layer module 221 has at least four bias points 2211 to form bias voltages in the first direction S1 and the second direction S2 respectively. Wherein, the second panel 22 is one of a PET panel or a glass panel, and the bias layer module 221 is at least one of an indium tin oxide and an antimony tin oxide coated on the second panel. production. Wherein, the bias layer module 221 is a uniform planar resistor. The bias points 2211 of the bias layer module 221 are respectively disposed at edge corners of the bias layer module 221 . Preferably in this embodiment, the first direction S1 and the second direction S2 are orthogonal to each other.

The voltage detection modules 23 are respectively electrically connected to the sensing lines 2112 of the first panel 21 to detect the voltage value of the conductive block 2111 . Furthermore, the resistive touch panel 200 further includes a control module 24 , and the control module 24 is electrically connected to the bias points 2211 of the second panel 22 to respectively provide bias values of the bias points 2211 . The control module 24 is also electrically connected to the voltage detection module 23 , and determines the position of at least one touch point according to the voltage value of the conductive block 2111 detected by the voltage detection module 23 .

For example, when the resistive touch panel 200 is in the working state, the control module 24 alternately provides voltages at the bias points 2211 to alternately generate bias voltages in the first direction S1 and the second direction S2 on the bias layer module 221 . When the user presses the resistive touch panel 200 at the same time to generate touch points P5 and P7 on the first panel 21, the first panel 21 is deformed and contacts the second panel 22 at the touch points P6 and P7. Touch point P8, at this time, the conductive block 2111 corresponding to touch point P5 and touch point P7 has a voltage value, and the voltage detection module 23 receives these voltage values through the induction line 2112, and detects The voltage value information is transmitted to the control module 24, and the control module 24 then synthesizes the voltage value information and its corresponding bias voltage conditions including bias voltage direction and bias value, and uses the voltage division principle applied in the existing resistive touch panel to judge The position coordinates of the touch point P5 and the touch point P7 are obtained.

Please refer to FIG. 3 . FIG. 3 is a schematic diagram of components of a resistive touch panel 200' according to a second embodiment of the present invention. Different from the first embodiment of the present utility model, the resistive touch panel 200' of the second embodiment of the present utility model uses a larger area of the conductive block 2111' at the position less touched by the user. In the first embodiment, a more efficient design can be made according to the actual usage conditions of users, and the number of induction lines 2112 can be reduced, thereby saving manufacturing costs.

Based on the above, the present invention arranges a touch panel module 211 with a plurality of independent conductive blocks 2111, 2111' on the lower surface of the first panel 21, and connects each conductive block 2111, 2111' with a When the induction line 2112 is touched on the area corresponding to the bias layer module 221, the voltage detection module 23 detects its voltage value, and the control module 24 further determines the coordinates of the touched position. Therefore, this practical The new resistive touch panel 200, 200' can simultaneously detect the position of at least one touch point to achieve the effect of multi-point input, and further make the use of the resistive touch panel 200, 200' of the present utility model more diversified .

Of course, the utility model can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model, but These corresponding changes and deformations should all belong to the protection scope of the appended claims of the present utility model.

Claims (14)

1. an electric resistance touch-control panel is characterized in that, comprises:

One first panel, its lower surface is laid with a touch sensitive surface module, and wherein this touch sensitive surface module has a plurality of pieces of independent conductive separately, and each those conductive area all comprises a line of induction;

One second panel, it is corresponding with this touch sensitive surface module to have a bias layer module, and wherein this bias layer module has at least four bias point, and in order to form bias voltage at a first direction and a second direction respectively; And

One voltage detection module is respectively with a plurality of above-mentioned line of induction electrically connect of this first panel, to detect the magnitude of voltage of those conductive area.

2. electric resistance touch-control panel according to claim 1 is characterized in that, this first panel is one of them of a polyethylene terephthalate panel or a face glass.

3. electric resistance touch-control panel according to claim 1 is characterized in that, this touch sensitive surface module is to coat one of at least the made member of this first panel in an indium tin oxide and the antimony tin oxide.

4. electric resistance touch-control panel according to claim 1 is characterized in that, this second panel is one of them of a polyethylene terephthalate panel or a face glass.

5. electric resistance touch-control panel according to claim 1 is characterized in that, this bias layer module is to coat one of at least the made member of this second panel in an indium tin oxide and the antimony tin oxide.

6. electric resistance touch-control panel according to claim 1 is characterized in that, this bias layer module is a planar resistor.

7. electric resistance touch-control panel according to claim 1 is characterized in that those bias point of this second panel are arranged at the edge of this bias layer module respectively.

8. electric resistance touch-control panel according to claim 7 is characterized in that, those bias point are arranged at the corner, edge of this bias layer module respectively.

9. electric resistance touch-control panel according to claim 1 is characterized in that, this first direction and this second direction are orthogonal.

10. electric resistance touch-control panel according to claim 1 is characterized in that this electric resistance touch-control panel also comprises a control module, and those bias point electrically connects of this control module and this second panel are to provide those bias point bias values respectively.

11. electric resistance touch-control panel according to claim 9 is characterized in that, this control module is electrically connected at this voltage detection module, and judges at least one touch points position according to the magnitude of voltage of those conductive area that this voltage detection module detected.

12. electric resistance touch-control panel according to claim 1 is characterized in that, those conductive area are according to an induction arranged.

13. electric resistance touch-control panel according to claim 11 is characterized in that, this induction matrix is arranged as a square formation.

14. electric resistance touch-control panel according to claim 11 is characterized in that, this induction matrix is arranged as a matrix.

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