TWI675319B - Touch apparatus - Google Patents

Abstract

A touch device includes multiple touch scanning elements, multiple touch signal lines, multiple touch switch groups, and multiple touch electrodes. The touch signal line and the touch scanning element are arranged alternately. The touch switch group is electrically connected with the touch scanning element and the touch signal line. Each touch switch group includes a plurality of touch switches. Each touch switch has a first terminal and a control terminal. The plurality of touch electrodes are separated from each other. Each touch electrode is electrically connected to at least one touch switch group. Multiple first ends of multiple touch switches of each touch switch group are electrically connected to the same touch electrode, and multiple control ends of multiple touch switches of each touch switch group are electrically connected to the same touch electrode. Touch scan element.

Description

Touch device

The invention relates to an electronic device, and more particularly to a touch device.

According to the position of the touch part, the touch devices can be divided into out-cell, on-cell and in-cell. Among them, the in-cell touch device has the advantage of being thin and widely used in high-end electronic products.

The display part of the in-cell touch device may include a plurality of common electrodes. The plurality of common electrodes may be divided into a plurality of groups. A plurality of common electrodes of each group are connected to each other. Multiple groups of common electrodes can be used as multiple touch electrodes during the touch sensing period. Taking a self-contained embedded touch device as an example, in general, multiple touch electrodes are electrically connected to multiple pins of an integrated circuit (or chip) through multiple touch signal lines, respectively. When the number of touch electrodes increases, the number of pins of the integrated circuit also increases, which is not conducive to manufacturing costs and / or bonding yield. Therefore, some manufacturers provide multiple touch switches (eg, thin film transistors) electrically connected to multiple touch electrodes in the in-cell touch device, thereby reducing the number of pins required for the integrated circuit. However, in order for the touch electrode to be well charged by the touch switch, the touch switch needs to have a considerable size, and the user has to It is easy to perceive, which is disadvantageous to the visual effect of the embedded touch device.

The invention provides a touch device with excellent performance.

The touch device of the present invention includes multiple touch scanning elements, multiple touch signal lines, multiple touch switch groups, and multiple touch electrodes. The touch signal line and the touch scanning element are arranged alternately. The touch switch group is electrically connected with the touch scanning element and the touch signal line. Each touch switch group includes a plurality of touch switches. Each touch switch has a first terminal and a control terminal. The plurality of touch electrodes are separated from each other. Each touch electrode is electrically connected to at least one touch switch group. Multiple first ends of multiple touch switches of each touch switch group are electrically connected to the same touch electrode, and multiple control ends of multiple touch switches of each touch switch group are electrically connected to the same touch electrode. Touch scan element.

Based on the above, in an embodiment of the present invention, a plurality of first ends of a plurality of touch switches of each touch switch group are electrically connected to a same touch electrode, and a plurality of contacts of each touch switch group are Multiple control terminals of the control switch are electrically connected to the same touch scanning element. That is, multiple touch switches of the same touch switch group are connected in parallel with each other. Therefore, even if the area of a single touch switch is designed to be small and the single touch switch has a high impedance based on the consideration of visual effects, a plurality of high-impedance touch switches are connected in parallel to form a touch switch. Group, the equivalent impedance of the touch switch group is small and will fall within an acceptable range, so that the touch switch group can charge the touch electrodes well within a certain time. In this way, not only the charging of the touch electrodes is good, but also the visual effect problems caused by the oversized single touch switch in the conventional technology can be improved.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

1‧‧‧ substrate

10, 10 ’, 10A ~ 10E‧‧‧ touch device

10a‧‧‧Pixel Area

100‧‧‧Display section

110‧‧‧ pixel structure

112‧‧‧pixel electrode

112a‧‧‧Slit

114‧‧‧Common electrode

200‧‧‧Touch section

210‧‧‧touch scanning element

220, 220-1, 220-2‧‧‧Touch switch group

230, 230-1, 230-2‧‧‧ touch electrodes

240‧‧‧First connecting line

250‧‧‧Second connection line

300‧‧‧ Integrated Circuit

310, 320, 330, 340‧‧‧ pads

400, 400D, 400E‧‧‧Integrated scan drive circuit

CL‧‧‧ Common Potential Line

DLp‧‧‧Pixel Signal Line

GLp‧‧‧Pixel Scan Line

GLt‧‧‧touch scan line

GLta‧‧‧head

GLtb‧‧‧End

ML1‧‧‧First choice line

ML2‧‧‧Second Selection Line

ML3‧‧‧Third Choice Line

PL‧‧‧ Peripheral wiring

R1, R2‧‧‧partial

S1 ~ S4‧‧‧Touch sensing area

Tp‧‧‧Pixel Switch

Tt‧‧‧touch switch

Tt-1‧‧‧ first end

Tt-2‧‧‧ second end

Tt-3‧‧‧Control terminal

TL‧‧‧Touch signal line

Tx _{(4x + 1)} , Tx _{(4x + 2)} , Tx _{(4x + 3)} , Tx _{(4x + 4)} , Tx _{(3x + 1)} , Tx _{(3x + 2)} , Tx _{(3x + 3)} , Tx ₁ , Tx ₂ , Tx ₃ , Tx _m ‧‧‧ Pulse signal

t1‧‧‧first transistor

t2‧‧‧Second transistor

t3‧‧‧Third transistor

x, y‧‧‧ directions

FIG. 1 is a schematic top view of a touch device according to a first embodiment of the present invention.

FIG. 2 is an enlarged schematic view of a part R1 of the touch device of FIG. 1.

FIG. 3 is a partially enlarged schematic diagram of a touch device 10 'according to an embodiment of the present invention.

FIG. 4 is a schematic top view of a touch device according to a second embodiment of the present invention.

FIG. 5 is a schematic top view of a touch device according to a third embodiment of the present invention.

FIG. 6 is a schematic top view of a touch device according to a fourth embodiment of the present invention.

FIG. 7 illustrates the pulse wave signal Tx _{(4x + 1)} input to the (4x + 1) th touch scan element 210 by the integrated scan driving circuit 400 of FIG. 6 and input to the (4x + 2) th touch scan The pulse signal Tx _{(4x + 2) of the} element 210 is input to the (4x + 3) th touch scan signal of the element 210 and the pulse signal Tx _{(4x + 3) is} input to the (4x + 4) th touch scan The pulse signal Tx _{(4x + 4) of the} element 210.

FIG. 8 is a schematic top view of a touch device according to a fifth embodiment of the present invention.

FIG. 9 shows the pulse wave signal Tx _{(3x + 1)} input to the (3x + 1) th touch scan element 210 by the integrated scan driving circuit 400D of FIG. 8 and input to the (3x + 2) th touch scan 210 element pulse signal Tx _{(3x + 2)} and to the second input (3x + 3) th touch scanning element 210 of the Tx pulse signal _{(3x + 3).}

FIG. 10 is a schematic top view of a touch device according to a sixth embodiment of the present invention.

FIG. 11 is an enlarged schematic diagram of a part R2 of the touch device of FIG. 10.

FIG. 12 shows the pulse wave signal Tx ₁ input to the first touch scanning element 210 and the pulse wave signal Tx ₂ to the second touch scanning element 210 of the integrated scan driving circuit 400E of FIG. 10. The pulse wave signals Tx _{3 of the} three touch scanning elements 210 to the pulse wave signals Tx _m input to the m-th touch scanning element 210.

Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.

It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to a physical and / or electrical connection. Moreover, "electrically connected" or "coupled" may mean that there are other elements between the two elements.

As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within an acceptable deviation range of a particular value determined by one of ordinary skill in the art, taking into account the measurements and A specific number of measurement-related errors (ie, limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the stated value, or within ± 30%, ± 20%, ± 10%, ± 5%. Furthermore, "about", "approximately" or "substantially" as used herein may depend on optical properties, etching properties, or other properties, To choose a more acceptable range of deviations or standard deviations, instead of one standard deviation for all properties.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted to have meanings consistent with their meanings in the context of the related art and the present invention, and will not be interpreted as idealized or excessive Formal meaning unless explicitly defined as such in this article.

FIG. 1 is a schematic top view of a touch device according to a first embodiment of the present invention. FIG. 2 is an enlarged schematic view of a part R1 of the touch device of FIG. 1. For clarity, FIG. 1 omits the pixel scanning line GLp, the pixel signal line DLp, the pixel switch Tp, and the pixel electrode 112 of FIG. 2.

Please refer to FIG. 1 and FIG. 2. In this embodiment, the touch device 10 may be an in-cell touch display device. For example, in this embodiment, the touch device 10 may include a display portion 100 and a touch portion 200, and the display portion 100 and the touch portion 200 may be selectively disposed on the same substrate 1. However, the present invention is not limited thereto. In another embodiment, the display portion 100 and the touch portion 200 may be respectively disposed on two opposite substrates, or may be disposed on the inner and outer surfaces of a cell, respectively. That is, the touch device including the display portion 100 and the touch portion 200 may also be another type of embedded touch display device, or an on-cell touch display device. In addition, in another embodiment, the touch device includes a touch portion 200, but may not include the display portion 100. For example, the touch device It may also be an out-cell touch panel.

In this embodiment, the display portion 100 includes a plurality of pixel scanning lines GLp, a plurality of pixel signal lines DLp, and a plurality of pixel structures 110. The pixel scanning lines GLp and the pixel signal lines DLp may belong to different film layers and are arranged alternately with each other. The plurality of pixel scanning lines GLp and the plurality of pixel signal lines DLp define a plurality of pixel regions 10a. For example, in this embodiment, each pixel region 10a may be a region surrounded by two adjacent pixel scanning lines GLp and two adjacent pixel signal lines DLp, but the present invention does not use this. Limited.

The plurality of pixel structures 110 are respectively disposed in the plurality of pixel regions 10a. The pixel structure 110 is electrically connected to the pixel scanning line GLp and the pixel signal line DLp. For example, in this embodiment, each pixel structure 110 includes a pixel switch Tp and a pixel electrode 112 electrically connected to the pixel switch Tp. The pixel switch Tp is, for example, a thin film transistor having a first terminal (for example, a drain), a control terminal (for example, a gate), and a second terminal (for example, a source). The first end of the pixel switch Tp is electrically connected to the pixel electrode 112. The control terminal of the pixel switch Tp is electrically connected to the pixel scanning line GLp. The second end of the pixel switch Tp is electrically connected to the pixel signal line DLp.

In this embodiment, each pixel structure 110 may further include a common electrode 114 located in a pixel region 10a. The electric field between the common electrode 114 and the pixel electrode 112 can drive a part of the display medium layer (for example, a liquid crystal layer; not shown) on each pixel region 10a, so that the touch device 10 displays a picture. For example, in this embodiment, the common electrode 114 and the pixel electrode 112 may be selectively disposed on the same substrate 1, and an insulating layer (not shown) is sandwiched between the common electrode 114 and the pixel electrode 112. The element electrode 112 has a plurality of slits 112 a, and the plurality of slits 112 a overlap the common electrode 114. The electric field between the edge of the slit 112a of the pixel electrode 112 and the common electrode 114 can drive a part of the display medium layer on each pixel region 10a. That is, in this embodiment, the touch device 10 may be a display panel in Fringe-Field Switching (FFS) mode. However, the present invention is not limited to this. In other embodiments, the touch device may also be a display panel in another suitable mode.

It is worth noting that, in this embodiment, in addition to the common electrode 114 for display purposes, multiple common electrodes 114 adjacent to each other and connected to each other can also be used as a touch electrode 230 to sense a touch action. . For example, in this embodiment, a plurality of common electrodes 114 are respectively located in a plurality of adjacent pixel regions 10a, and the plurality of pixel regions 10a may form touch sensing regions S1, S2, S3, or S4. The plurality of common electrodes 114 located in the touch sensing area S1, S2, S3 or S4 may be arranged in a 6 × 2 matrix and connected to each other to form a touch electrode 230. However, the present invention is not limited to this. In other embodiments, the number of the common electrodes 114 included in each touch electrode 230 (or the number of pixel regions 10a covered by each touch electrode 230) is visible. The display resolution and the touch resolution required by an actual product are determined by the present invention and are not limited by the present invention.

In this embodiment, all the common electrodes 114 can be connected into a plurality of touch electrodes 230. The plurality of touch electrodes 230 are separated from each other and can be arranged in multiple rows and columns. The multiple touch electrodes 230 in the same column are along the direction. x is arranged, and the plurality of touch electrodes 230 in the same row are arranged in the direction y.

The touch part 200 of the touch device 10 includes a plurality of touch scanning elements 210, a plurality of touch signal lines TL, a plurality of touch switch groups 220, and a plurality of touch electrodes 230. In this embodiment, the touch device 10 may further include an integrated circuit 300 (or a chip). The integrated circuit 300 has a plurality of pads (or pins) 310 and 320. In this embodiment, the integrated circuit 300 can be selectively connected to the substrate 1 by a chip-on-glass bonding process (Chip On Glass, COG). However, the present invention is not limited to this. In other embodiments, the integrated circuit 300 may also use other appropriate processes, such as: Chip-Film Bonding Process (Chip On Film, COF), Chip-Circuit Board Bonding Process (Chip On Board (COB), Tape Automated Bonding (TAB), etc., are connected to the substrate 1.

In this embodiment, the touch scanning element 210 is electrically connected to the pad 310 of the integrated circuit 300. For example, in this embodiment, each touch scanning element 210 may be a touch scanning line GLt. The touch scanning line GLt and the pixel scanning line GLp may be substantially parallel. The plurality of touch scanning lines GLt can be electrically connected to the plurality of pads 310 of the integrated circuit 300 respectively through corresponding peripheral traces PL. However, the present invention is not limited to this. In other embodiments, each touch scanning element 210 may also include a plurality of touch scanning lines GLt, which will be described below in conjunction with other embodiments by way of example.

The plurality of touch signal lines TL and the plurality of touch scanning elements 210 are staggered. The plurality of touch signal lines TL can be electrically connected to the plurality of pads 320 of the integrated circuit 300 respectively. In this embodiment, the plurality of touch signal lines TL may extend in the direction y, and the touch scanning element 210 may extend in the direction x. For example, in this embodiment, the direction x and the direction y may be selectively perpendicular, but the present invention is not limited thereto.

Multiple touch switch groups 220, multiple touch scanning elements 210, and multiple touch switches The control signal line TL is electrically connected. Each touch switch group 220 is electrically connected to a corresponding touch scanning element 210 and a corresponding touch signal line TL. The signals received by the touch switch group 220 can determine whether the corresponding touch electrodes 230 are enabled or not. Each touch electrode 230 is electrically connected to at least one touch switch group 220. For example, in this embodiment, each touch electrode 230 may be selectively electrically connected to a plurality of touch switch groups 220 (for example, two touch switch groups 220). However, the present invention is not limited to this. In other embodiments, each touch electrode 230 may also be electrically connected to a touch switch group 220, which will be described in the following paragraphs with other illustrations.

Each touch switch group 220 includes a plurality of touch switches Tt. In this embodiment, each touch switch Tt is, for example, a thin film transistor. Each touch switch Tt has a first terminal Tt-1 (for example: a drain), a second terminal Tt-2 (for example: a source), and a control terminal Tt-3 (for example: a gate). Multiple first ends Tt-1 of multiple touch switches Tt of the same touch switch group 220 are electrically connected to the same touch electrode 230, and multiple controls of multiple touch switches Tt of the same touch switch group 220 The terminal Tt-3 is electrically connected to the same touch scanning element 210. That is, the plurality of touch switches Tt of the same touch switch group 220 are connected in parallel with each other. Therefore, even if the area of a single touch switch Tt is designed to be small and the single touch switch Tt has a high impedance based on the consideration of visual effects, by connecting a plurality of high-impedance touch switches Tt into one The touch switch group 220, the equivalent impedance of the touch switch group 220 is small and falls within an acceptable range, so that the touch switch group 220 can charge the touch electrodes 230 well within a certain time. In this way, not only the charging of the touch electrode 230 is good, but also the visual effect problem caused by the large size of the single touch switch in the conventional technology can be improved.

In this embodiment, the plurality of second ends Tt-2 of the plurality of touch switches Tt of the at least one touch switch group 220 electrically connected to the same touch electrode 230 may be selectively electrically connected to the same touch. Signal line TL. For example, in this embodiment, multiple touch switches Tt of the touch switch groups 220-1 and 220-2 electrically connected to the same touch electrode 230 may be arranged in multiple rows, and multiple contacts in each row The control switches Tt are arranged along the extending direction y of the touch signal line TL. The touch part 200 of the touch device 10 further includes a plurality of first connection lines 240 extending in the direction y and a second connection line 250 extending in the direction x. The plurality of first connection lines 240 are respectively connected with a plurality of rows. The plurality of second terminals Tp-2 of the plurality of touch switches Tt are electrically connected. The second connection lines 250 are interleaved with the plurality of first connection lines 240. The plurality of first connection lines 240 are connected to the second connection line 250, and the second connection line 250 is electrically connected to the touch signal line TL. In short, in this embodiment, the plurality of second ends Tt-2 of the plurality of touch switches Tt electrically connected to the same touch electrode 230 can pass through the comb-shaped conductive element (ie, the plurality of first connection lines). The combination of 240 and a second connection line 250) is electrically connected to the same touch signal line TL, but the invention is not limited thereto. In addition, in this embodiment, the plurality of touch electrodes 230 may be arranged in multiple rows, the plurality of touch electrodes 230 in each row are arranged in the direction y, and the plurality of touch electrodes 230 in the same row may be selectively electrified. It is connected to the same touch signal line TL, but the present invention is not limited to this.

In this embodiment, in order to further improve the visual effect, a plurality of touch switches Tt of the same touch switch group 220 may be appropriately dispersed to make it difficult for users to perceive. For example, a plurality of touch switches Tt of a touch switch group 220 electrically connected to the same touch electrode 230 may be respectively disposed in different pixel regions 10a.

Specifically, the plurality of pixel regions 10a are arranged in multiple columns, and the plurality of pixel regions 10a in each column are arranged along the extension direction x of the touch scanning element 210. In the plurality of pixel regions 10a in each column, the ( 1 + n _x ‧p _x ) are provided with a touch switch Tt in the pixel area 10 a, where p _x is a positive integer, n _x is a positive integer of 0 and 1 to m _x , and m _x > 1. The multiple pixel regions 10a are arranged in multiple rows, and the multiple pixel regions 10a of each row are arranged along the extending direction y of the touch signal line TL. In the multiple pixel regions 10a of each row, the (1 + n _y ‧P _y ) each of the pixel regions 10 a is provided with a touch switch Tt, p _y is a positive integer, n _y is a positive integer of 0 and 1 to m _y , and m _y > 1.

For example, in this embodiment, p _x is 1. That is, in a plurality of pixel regions 10a of each column, a touch switch Tt is provided in the (1 + n _x ‧) th pixel region 10a, where n _x is a positive integer of 0 and 1 to m _x , M _x > 1. That is, in each of the plurality of pixel regions 10a of each column, a touch switch Tt is provided for each pixel region 10a. For example, in this embodiment, p _y may be 1. That is, in a plurality of pixel regions 10a of each row, a touch switch Tt is provided in the (1 + n _y ‧) th pixel region 10a, where n _y is a positive integer from 1 to m _y , and m _y > 1. That is, in this embodiment, in each of the plurality of pixel regions 10a of each row, a touch switch Tt is provided for each pixel region 10a. In short, in this embodiment, all the pixel regions 10a may be provided with a touch switch Tt. However, the present invention is not limited to this. In other embodiments, part of the pixel area 10a may be provided with a touch switch Tt, and part of the pixel area 10a is not provided with a touch switch Tt. .

FIG. 3 is a partially enlarged schematic diagram of a touch device 10 ′ according to an embodiment of the present invention. In the embodiment of FIG. 3, the aforementioned p _{x is,} for example, 3, and the aforementioned p _{y is,} for example, 1. That is, in a plurality of pixel regions 10a of each column, a (1 + n _x ‧) th pixel region 10a is provided with a touch switch Tt, where n _x is a positive value of 0 and 1 to m _x Integer, m _x >1; among multiple pixel areas 10a of each row, a (1 + n _y ‧) th pixel area 10a is provided with a touch switch Tt, where n _y is 0 and 1 to m _y Positive integer, m _y > 1. That is, in the embodiment of FIG. 3, in each of the plurality of pixel regions 10a, one touch switch Tt is provided for every three pixel regions 10a; the plurality of pixel regions 10a in each row In each pixel area 10a, a touch switch Tt is provided. It should be noted that, in the touch devices 10 and 10 ′ described above, the touch switches Tt are regularly arranged. However, the present invention is not limited thereto, and in other embodiments, the touch switches Tt may be arranged irregularly (or randomly).

FIG. 4 is a schematic top view of a touch device according to a second embodiment of the present invention. For the sake of clarity, FIG. 4 omits the aforementioned pixel scanning line GLp, pixel signal line DLp, pixel switch Tp, and pixel electrode 112. Please refer to FIGS. 1 and 4. The touch device 10A in FIG. 4 is similar to the touch device 10 in FIG. 1. The difference between the two is that in the embodiment of FIG. 4, the plurality of touch electrodes 230 in the same row are It is electrically connected to a plurality of touch signal lines TL; more specifically, a plurality of touch switches Tt electrically connected to the same touch electrode 230 are arranged in a plurality of rows, and the plurality of rows of touch switches Tt and a plurality of touch switches The signal line TL is electrically connected. The plurality of touch signal lines TL electrically connected to the plurality of touch electrodes 230 in the same row are respectively electrically connected to the plurality of pads 320 of the integrated circuit 300.

FIG. 5 is a schematic top view of a touch device according to a third embodiment of the present invention. For clarity, FIG. 5 omits the aforementioned pixel scanning line GLp, pixel signal line DLp, pixel switch Tp, and pixel electrode 112. Please refer to FIGS. 1 and 5. The touch device of FIG. 5 The device 10B is similar to the touch device 10 in FIG. 1. The difference between the two is that in the embodiment of FIG. 5, each touch scanning element 210 includes a plurality of adjacent touch scan lines GLt. Multiple head ends GLta of the plurality of touch scan lines GLt of the element 210 are directly connected, and multiple ends GLtb of the plurality of touch scan lines GLt of the same touch scan element 210 are directly connected. In addition, in the embodiment of FIG. 5, the plurality of touch switches Tt of one touch switch group 220 electrically connected to the same touch scanning element 210 and the same touch electrode 230 are arranged in multiple rows and multiple columns, and Unlike the touch switch group 220 of FIG. 1, a plurality of touch switches Tt are arranged in a row.

FIG. 6 is a schematic top view of a touch device according to a fourth embodiment of the present invention. For clarity, FIG. 6 omits the aforementioned pixel scanning line GLp, pixel signal line DLp, pixel switch Tp, and pixel electrode 112. Please refer to FIGS. 5 and 6. The touch device 10C of FIG. 6 is similar to the touch device 10B of FIG. 5. The difference between the two is that the touch device 10C of FIG. 6 further includes an integrated scan driving circuit 400. At least a part of the integrated scan driving circuit 400 may be fabricated on the same substrate 1 together with the pixel switch Tp and / or the touch switch Tt. In this embodiment, the integrated scan driving circuit 400 may include a multiplexer and a shift register. The plurality of touch scanning elements 210 are electrically connected to the integrated scan driving circuit 400. The integrated scan driving circuit 400 is electrically connected to the pads 330 of the integrated circuit 300. In this embodiment, the integrated scanning driving circuit 400 may be disposed on both sides of the integrated circuit 300, but the present invention is not limited thereto. In other embodiments, the integrated scanning driving circuit 400 may be disposed at other appropriate positions. .

FIG. 7 shows the pulse wave signal Tx _{(4x + 1)} input to the (4x + 1) th touch scanning element 210 by the integrated scan driving circuit 400 of FIG. 6 and input to the (4x + 2) th touch scanning. The pulse signal Tx _{(4x + 2) of the} element 210 is input to the (4x + 3) th touch scan signal of the element 210 and the pulse signal Tx _{(4x + 3) is} input to the (4x + 4) th touch scan The pulse signal Tx _{(4x + 4) of the} element 210, where x = 0,1,2, ... [(m / 4) -1]. For example, in this embodiment, the touch device 10C includes the first to mth touch-scanning elements 210 arranged in order along the direction y, where the first, fifth, nineth, ... th touch-scanning elements 210 are in the first interval T1 is input to a pulse signal Tx _{(4x + 1),} the first 2,6,10, ... a touch scanning element 210 of the second section T1 T2 of the pulse signal is input Tx _{(4x + 2} at the first connection section ₎ , The 3rd, 7th, 11th, ... touch scanning elements 210 are input with the pulse wave signal Tx _{(4x + 3)} in the third interval T3 following the second interval T2, and the 4,8,12, ... touches The control scanning element 210 is input with a pulse wave signal Tx _{(4x + 4) in} a fourth interval T4 following the third interval T3.

FIG. 8 is a schematic top view of a touch device according to a fifth embodiment of the present invention. For clarity, FIG. 8 omits the aforementioned pixel scanning line GLp, pixel signal line DLp, pixel switch Tp, and pixel electrode 112. Please refer to FIGS. 5 and 8. The touch device 10D of FIG. 8 is similar to the touch device 10B of FIG. 5. The difference between the two is that the touch device 10D of FIG. 8 further includes an integrated scan driving circuit 400D. At least a part of the integrated scan driving circuit 400D can be fabricated on the same substrate 1 together with the pixel switch Tp and / or the touch switch Tt. In this embodiment, the integrated scan driving circuit 400D may include a multiplexer. The plurality of touch scanning elements 210 are electrically connected to the multiplexer of the integrated scanning driving circuit 400D. For example, the touch device 10D includes 1 to m scanning touch elements 210 arranged in order in the direction y. The multiplexer of the integrated scan driving circuit 400D includes a plurality of first transistors t1, a plurality of second transistors t2, a plurality of The third transistor t3, the first selection line ML1, the second selection line ML2, the third selection line ML3, and the common potential line CL. A plurality of first ends of the plurality of first transistors t1 are respectively connected to the first +3. The p scanning touch elements 210 are electrically connected, where p = 0 and a positive integer from 1 to [(m / 3) -1]. The plurality of second terminals of the plurality of first transistors t1 are electrically connected to the common potential line CL. The plurality of control terminals of the plurality of first transistors t1 are electrically connected to the first selection line ML1. A plurality of first ends of the plurality of second transistors t2 are respectively 2 + 3. The p scanning touch elements 210 are electrically connected. A plurality of second ends of the plurality of second transistors t2 are electrically connected to the common potential line CL. The control terminals of the second transistors t2 are electrically connected to the second selection line ML2. The plurality of first ends of the plurality of third transistors t3 are respectively connected to the 3 + 3. The p scanning touch elements 210 are electrically connected. The second terminals of the third transistors t3 are electrically connected to the common potential line CL. The control terminals of the third transistors t3 are electrically connected to the third selection line ML3. The first selection line ML1, the second selection line ML2, and the third selection line ML3 are electrically connected to the plurality of pads 340 of the integrated circuit 300, respectively.

FIG. 9 shows the pulse wave signal Tx _{(3x + 1)} input to the (3x + 1) th touch scan element 210 by the integrated scan driving circuit 400D of FIG. 8 and input to the (3x + 2) th touch scan 210 element pulse signal Tx _{(3x + 2)} and to the second input (3x + 3) th touch scanning element 210 of the Tx pulse signal _{(3x + 3).} For example, in this embodiment, the touch device 10D includes the first to mth touch scanning elements 210 arranged in order along the direction y, wherein the first, fourth, seventh, ... th touch scanning elements 210 are in the first interval T1 is input to a pulse signal Tx _{(3x + 1),} 5, 8, ... a touch scanning element 210 of the second section T1 T2 of the pulse signal is input Tx _{(3x + 2} at the first connection section ₎ , The 3rd, 6th, 9th, ... touch scanning elements 210 are input with the pulse wave signal Tx _{(3x + 3)} in the third interval T3 following the second interval T2.

FIG. 10 is a schematic top view of a touch device according to a sixth embodiment of the present invention. FIG. 11 is an enlarged schematic diagram of a part R2 of the touch device of FIG. 10. For clarity, FIG. 10 omits the pixel scanning line GLp, the pixel signal line DLp, the pixel switch Tp, and the pixel electrode 112 of FIG. 11.

Please refer to FIG. 6 and FIG. 10. The touch device 10E in FIG. 10 is similar to the touch device 10C in FIG. 6. The difference between the two is that in the embodiment of FIG. 10, the same touch scanning element 210 (for example: The touch scanning lines GLt are connected to each other and are electrically connected to adjacent multiple rows (for example, 2 rows) of the touch electrodes 230. The plurality of touch electrodes 230-1 and 230-2 electrically connected to the same touch scanning element 210 and located on the same row are respectively electrically connected to a plurality of different touch signal lines TL.

FIG. 12 shows the pulse wave signal Tx ₁ input to the first touch scanning element 210 and the pulse wave signal Tx ₂ to the second touch scanning element 210 of the integrated scan driving circuit 400E of FIG. 10. The pulse wave signals Tx _{3 of the} three touch scanning elements 210 to the pulse wave signals Tx _m input to the m-th touch scanning element 210, where m is the total number of the touch scanning elements 210. For example, in this embodiment, the touch device 10E includes the first to mth touch-scanning elements 210 arranged in order along the direction y, and the first touch-scanning element 210 is input with a pulse wave signal in the interval T. Tx ₁ , the second touch scanning element 210 is input with the pulse wave signal Tx ₂ in the interval T, the third touch scanning element 210 is input with the pulse wave signal Tx ₃ in the interval T, ... the mth touch scanning element 210 In the interval T, a pulse wave signal Tx _m is input. The pulse wave signal Tx ₁ , the pulse wave signal Tx ₂ , the pulse wave signal Tx ₃ ,... And the pulse wave signal Tx _{m are} synchronized and have the same waveform.

Although the present invention has been disclosed as above with the examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some modifications and retouching without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application.

Claims (12)

A touch device includes: a plurality of touch scanning elements; a plurality of touch signal lines arranged alternately with the touch scanning elements; a plurality of touch switch groups, and the touch scanning elements and the touch The signal lines are electrically connected. Each touch switch group includes a plurality of touch switches. Each touch switch has a first end, a control end, and a second end. A plurality of touch electrodes are separated from each other. Each touch electrode is electrically connected to at least one touch switch group, wherein a plurality of first ends of the touch switches of each touch switch group are electrically connected to the same touch electrode, and each touch Multiple control ends of the touch switches of the switch group are electrically connected to the same touch scanning element, and multiple second ends of the touch switches of each touch switch group are electrically connected to the touch switches. The same touch signal line of the control signal line; multiple pixel scanning lines and multiple pixel signal lines are staggered and define multiple pixel areas, where the pixel signal lines and the touch signal lines are Structurally separated; and a plurality of pixel structures, respectively disposed on the pixels And the plurality of pixels connected to the scanning lines and the plurality of pixel signal lines electrically. The touch device according to item 1 of the patent application scope, wherein the touch switches of each touch switch group are connected in parallel with each other. The touch device described in item 1 of the scope of patent application, Wherein, a touch electrode overlaps the pixel structures, and a plurality of touch switches of the touch switch group which is electrically connected to the touch electrodes are respectively disposed in different pixel regions. The touch device according to item 3 of the scope of patent application, wherein the pixel regions are arranged in multiple rows, and the multiple pixel regions in each row are arranged along an extending direction of the touch scanning element; Among these pixel areas, a touch switch is provided in the (n _x ‧p _x +1) pixel area, p _x is a positive integer, n _x is a positive integer of 0 and 1 to m _x , and m _x > 1 . The touch device according to item 3 of the scope of patent application, wherein the pixel regions are arranged in multiple rows, and the multiple pixel regions in each row are arranged along an extending direction of the touch signal line; Among these pixel areas, a touch switch is provided in the (n _y ‧ p _y +1) pixel area, where p _y is a positive integer, n _y is a positive integer from 0 and 1 to m _y , and m _y > 1 . The touch device according to item 3 of the scope of patent application, wherein a part of the pixel areas is provided with a touch switch, and another part of the pixel areas is not provided with a touch switch. The touch device according to item 1 of the patent application scope further includes: an integrated circuit, wherein the same touch signal line is electrically connected to a pad of the integrated circuit. The touch device according to item 1 of the scope of patent application, wherein the touch switches electrically connected to the same touch electrode are arranged in multiple rows, and the multiple touch switches in each row are along the touch signal lines. Arranged in an extending direction of the same touch signal line, the touch device further includes: A plurality of first connection lines electrically connected to the plurality of second ends of the touch switches respectively in a plurality of rows; and a second connection line interlaced with the first connection lines, wherein the first connection lines Connected to the second connection line, and the second connection line is electrically connected to the same touch signal line. The touch device according to item 1 of the patent application scope further includes: an integrated circuit, wherein the touch signal lines are electrically connected to a plurality of pads of the integrated circuit, respectively. The touch device according to item 1 of the scope of patent application, wherein the same touch scan element includes a plurality of touch scan lines separated in structure, and each touch scan line has a head end and an end. Multiple head ends of the touch scan lines are directly connected, and multiple ends of the touch scan lines are directly connected. The touch device according to item 1 of the scope of patent application, wherein the touch electrodes are arranged in multiple rows, and the multiple touch electrodes in each row are arranged in an extending direction of the touch scanning elements, and the same The touch scanning element is electrically connected to a plurality of touch electrodes in adjacent columns. The touch device according to item 11 of the scope of patent application, wherein the touch electrodes are arranged in a plurality of rows, and the plurality of touch electrodes in each row are arranged upward in a side staggered with the extending direction of the touch scanning elements , A plurality of touch electrodes which are electrically connected to the same touch scanning element and located on the same row are respectively electrically connected to different touch signal lines.