TW201426107A - Touch display device - Google Patents

Abstract

The present invention relates to a touch display device. The touch display device includes a first substrate, a color filter layer, and a plurality of first sensing electrodes. The color filter layer is positioned on a side of the first substrate and includes a plurality of color filter units and a black matrix. The black matrix includes a plurality of first structures and a plurality of second structures crossing with the first structures. The first structures and the second structures cooperatively define a plurality of grids. The color filter units are positioned in the grids, so as to separate the color filter units from each other. The first structures are parallel with each other. The second structures are parallel with each other. The first sensing electrodes are configured to sense contact positions of the touch display device that are touched. Each of the first sensing electrodes directly opposes a first structure, and a width of each of the first sensing electrodes is lesser or equals a width of the corresponding first structure that each of the first sensing electrode opposes.

Description

Touch display device

The present invention relates to a touch display device, and more particularly to a touch display device with relatively uniform light transmittance.

Please refer to FIG. 1. FIG. 1 is a schematic diagram of an optical path of a conventional touch display device. The touch display device 200 includes a first substrate 50, a second substrate 60 disposed opposite the first substrate 50, and a color filter layer 51 disposed on a side of the first substrate 50 facing the second substrate 60. The plurality of sensing electrodes 52 on the side of the first substrate 50 facing the second substrate 60, the insulating layer 53 disposed between the plurality of sensing electrodes 52 and between the adjacent two sensing electrodes 52, and the insulating layer 53 disposed thereon The second substrate 60 faces the light source device 70 on the side of the first substrate. A pixel unit (not shown) for displaying a picture is disposed on a side of the second substrate 60 facing the first substrate 50.

The light source device 70 is configured to provide a light source for realizing the screen display of the touch display device 200.

The color filter layer 51 is for converting white light emitted from the light source device 70 into light of three primary colors of red, green, and blue, thereby synthesizing a desired color image. The color filter layer 51 includes a plurality of filter units 511 and a black matrix 512 for spacing the plurality of filter units 511.

The plurality of sensing electrodes 52 are arranged in parallel at intervals to sense a position at which the touch display device 200 is touched. The sensing electrode 52 partially overlaps the color filter unit 511. An insulating layer 53 located between adjacent two sensing electrodes 52 overlaps with the color filter unit 511.

However, since the material of the sensing electrode 52 is generally indium tin oxide (ITO), and the material of the insulating layer 53 is usually a resin, the sensing electrode 52 and the insulating layer 53 are worn for light. The diafiltration corresponds to different. Therefore, the light source device 70 from the touch display device 200 corresponds to the light flux of the light emitted from the region of the sensing electrode 52 partially overlapping the color filter unit 511 and the insulation between the pair of sensing electrodes 52. The light flux of the light emitted from the area of the layer 53 is different. Therefore, the light transmittance of the touch display device 200 is different, so that a pattern visible to the human eye is formed between the two adjacent sensing electrodes 52, which affects the touch display. The quality of the device 200.

In view of this, it is necessary to provide a touch display device having a relatively uniform light transmittance.

The present invention provides a touch display device including:

a first substrate;

a color filter layer disposed on one side of the first substrate, the color filter layer includes a plurality of filter units and a black matrix, the black matrix including a plurality of first structures and intersecting the plurality of first structures a plurality of second structures, the plurality of first structures and the plurality of second structures defining a complex grid, wherein the plurality of filter units are disposed in the grid such that the plurality of filter units are spaced apart from each other, the first plurality The arrangement direction of the structures is the same, and the arrangement of the second plurality of structures is the same;

a second substrate, the second substrate is disposed opposite to the first substrate;

a plurality of driving elements disposed on one side of the second substrate for controlling a luminous flux of light passing through the plurality of color filter units to achieve a picture display, wherein the plurality of driving elements and the color filter layer are located Between the first substrate and the second substrate; and

The plurality of first sensing electrodes are configured to sense a position where the touch display device is touched, wherein each of the first sensing electrodes faces a first structure, and a width of each of the first sensing electrodes is less than or equal to each The width of the first structure that the first sensing electrode is facing.

Each of the first sensing electrodes of the touch display device faces a first structure, and a width of each of the first sensing electrodes is less than or equal to a width of the first structure directly opposite each of the first sensing electrodes. Therefore, each of the first sensing electrodes does not overlap with the plurality of filter units, so that the light fluxes of the light emitted from the plurality of filter units are substantially the same. Therefore, the light transmittance of the touch liquid crystal display device is relatively uniform, and the lines visible to the human eye are not formed between the two adjacent first sensing electrodes, thereby improving the touch liquid crystal display device. quality.

The invention will be further described in detail below with reference to the accompanying drawings. This embodiment is described by taking a touch liquid crystal display device as an example. The present invention can also be applied to other suitable types of touch display devices, such as an electroluminescent display device having a color filter layer.

Please refer to FIG. 2 and FIG. 3 together. FIG. 2 is a partial cross-sectional structural view of the first embodiment of the touch liquid crystal display device of the present invention. 3 is a schematic top plan view of the touch liquid crystal display device shown in FIG. 2. The touch liquid crystal display device 100 includes a first substrate 10, a second substrate 20 disposed opposite the first substrate 10, a color filter layer 11, a common electrode 12, a plurality of first sensing electrodes 13, and at least a first dummy. The electrode 14, the protective layer 15, the plurality of driving elements 21, the plurality of pixel electrodes 22, the liquid crystal layer 30, and the backlight module 40. The common electrode 12 and the color filter layer 11 are stacked on a side of the first substrate 10 facing the second substrate 20 , and the color filter layer 11 is located between the second substrate 20 and the common electrode 12 . . The plurality of first sensing electrodes 13 , the at least one first dummy electrode 14 , and the protective layer 15 are located on a side of the first substrate 10 facing away from the second substrate 20 . In this embodiment, the touch liquid crystal display device 100 is provided with a plurality of first dummy electrodes 14 , and the plurality of first sensing electrodes 13 are disposed in parallel with the plurality of first dummy electrodes 14 and are located on the protective layer 15 and the first substrate. Between 10. The plurality of driving elements 21 and the plurality of pixel electrodes 22 are located on a side of the second substrate 20 facing the first substrate 10, and each driving element 21 is connected to a pixel electrode 22. The liquid crystal layer 30 is located between the plurality of pixel electrodes 22 and the common electrode 12. The backlight module 40 is disposed on a side of the second substrate 20 facing away from the first substrate 10 .

The backlight module 40 is configured to provide a light source for realizing the screen display of the touch liquid crystal display device 100.

The common electrode 12 is configured to receive a common voltage, and the complex driving element 21 is configured to control whether a pixel voltage is applied to the complex pixel electrode 22, thereby controlling the rotation of the liquid crystal layer 30 by controlling the clamping of the two ends of the liquid crystal layer 30. The angle, in turn, corresponds to the amount of light that controls the light passing through the color filter layer 11.

The color filter layer 11 is configured to convert white light emitted from the backlight module 40 into red, green, and blue primary colors to synthesize a desired color image. The color filter layer 11 includes a plurality of first filter units R, a plurality of second filter units G, a plurality of third filter units B, and a black matrix 111. The plurality of first filter units R have the same color and are red, and the plurality of second filter units G have the same color and are green, and the plurality of third filter units B have the same color and are blue. The black matrix 111 includes a plurality of first structures 112 and a plurality of second structures 113 disposed across the plurality of first structures 112. The plurality of first structures 112 and the plurality of second structures 113 define a complex grid 111a (see FIG. 3). The arrangement of the plurality of first structures 112 is the same. The arrangement of the plurality of second structures 113 is the same. In the present embodiment, the plurality of first structures 112 and the plurality of second structures 113 are both strip-shaped structures. In other embodiments, the plurality of first structures 112 and the plurality of second structures 113 may also be of other shapes. The first, second, and third plurality of filter units R, G, and B are disposed in the grid 111a such that the plurality of first, second, and third filter units R, G, and B are spaced apart from each other. It should be noted that the second filter unit G is also disposed in the grid labeled with the reference 111a in FIG. 3, and the second filter unit G is not shown here.

Specifically, the plurality of first filter units R are configured to convert white light emitted from the backlight module 40 into red light; the plurality of second filter units G are used for white light emitted from the backlight module 40. Converted into green light; the plurality of third filter units B are used to convert white light emitted from the backlight module 40 into blue light. The black matrix 111 is configured to block light passing between the plurality of first filter units R, the plurality of second filter units G, and the plurality of third filter units B to prevent light leakage and prevent the plurality of first filters The materials of the light unit R, the plurality of second filter units G, and the plurality of third filter units B are mixed. The black matrix 111 is further configured to block the plurality of driving elements 21 to prevent external light from affecting the performance of the plurality of driving elements 21.

The protective layer 15 is used to protect the plurality of first sensing electrodes 13 and the first dummy electrode 14. The plurality of first sensing electrodes 13 form a mutual capacitance with each other for sensing a position at which the touch liquid crystal display device 100 is touched. Each of the first sensing electrodes 13 is disposed opposite to a side of the first structure 112 facing away from the second substrate 20, and a width of each of the first sensing electrodes 13 is less than or equal to that of each of the first sensing electrodes 13 The width of the first structure 112. In other words, the first sensing electrode 13 is disposed on the planar structure and opposite to the opposite sides of the first sensing electrode 13 and disposed opposite to each other (eg, the second filter unit G and the first There is a certain gap between the three filter units B), or the width of the first sensing electrode 13 is equal to the two adjacent filters on the opposite sides of the first sensing electrode 13 and oppositely disposed. The gap between the units. Preferably, the length of each of the first sensing electrodes 13 is greater than or equal to the length of the first structure 112 directly opposite each of the first sensing electrodes 13. In other words, each of the first sensing electrodes 13 extends from one side of the opposite side of the black matrix 111 to the other side on a planar structure, and the end of each of the first sensing electrodes 13 exceeds the black The peripheral edge of the matrix 111 is flush with the peripheral edge of the black matrix 111. In this embodiment, the first structures 112 facing each of the first sensing electrodes 13 and the first sensing electrodes 13 are respectively located on opposite sides of the first substrate 10 . In other modified embodiments, each of the first sensing electrodes 13 is disposed between the first structure 112 and the first substrate 10 directly opposite the first sensing electrodes 13 .

Each of the first dummy electrodes 14 is disposed opposite to a side of the first structure 112 facing away from the second substrate 20, and the first structure 112 facing the first dummy electrode 14 faces away from the side of the second substrate 20 The first sensing electrodes 13 are not disposed opposite, wherein the width of each of the first dummy electrodes 14 is less than or equal to the width of the first structure 112 directly facing each of the first dummy electrodes 14. In other words, the first dummy electrode 14 is disposed on the planar structure opposite to the opposite sides of the first dummy electrode 14 and disposed opposite to each other (eg, the first filter unit R and the second filter). There is a certain gap between the light units G), or the first dummy electrode 14 is equal in plane structure to a gap between two adjacent filter units located on opposite sides of the first dummy electrode 14 and oppositely disposed. Preferably, the length of each of the first dummy electrodes 14 is greater than or equal to the length of the first structure 112 directly opposite each of the first dummy electrodes 14. In other words, each of the first dummy electrodes 14 extends from one side of the opposite side of the black matrix 111 to the other side on a planar structure, and the end of each of the first dummy electrodes 14 exceeds the black matrix 111. The peripheral edge is flush with the peripheral edge of the black matrix 111. Further, a first dummy electrode 14 is disposed on a side of the first structure 112 on which the first sensing electrode 13 is disposed away from the second substrate 20. The at least one first dummy electrode 14 is not connected to any circuit, and the material thereof is preferably the same as the material of the first sensing electrode 13.

Please refer to FIG. 4 , which is a schematic diagram of an optical path of the touch liquid crystal display device 100 . As can be seen from FIG. 4, since the plurality of first sensing electrodes 13 do not overlap with the plurality of first filter units R, the plurality of second filter units G, and the plurality of third filter units B, The light flux of the light emitted from the plurality of first filter units R, the plurality of second filter units G, and the plurality of third filter units B is substantially the same. Therefore, the light transmittance of the touch liquid crystal display device 100 is relatively uniform, and the lines visible to the human eye are not formed between the two adjacent first sensing electrodes 52, thereby improving the touch liquid crystal display. The quality of the device 100.

Further, if the length of the first sensing electrode 13 is smaller than the length of the first structure 112 directly facing the first sensing electrode 13, when ambient light is incident on the touch liquid crystal display device 100, along the The length of the first structure 112 extends. The luminous flux of the plurality of first structures 112 that is greater than the area of the first sensing electrode 13 reflected by the ambient light is different from the first first structure 112. The light flux of the light reflected back to the ambient environment by the area of the sensing electrode 13. Therefore, when the length of each of the first sensing electrodes 13 is greater than or equal to the length of the first structure 112 directly facing each of the first sensing electrodes 13, when ambient light is incident on the touch liquid crystal display device 100, The first first structure 112 is substantially the same as the light flux reflected from the region of the plurality of first sensing electrodes 13 to the ambient environment, thereby further improving the uniformity of the light transmittance of the touch liquid crystal display device 100. .

Further, since the first dummy electrode 14 is further disposed on the first structure 112 that is not corresponding to the plurality of first sensing electrodes 13, when ambient light is incident on the touch liquid crystal display device 100, The luminous flux of the light reflected back to the environment by the plurality of first structures 112 is substantially the same, thereby further improving the uniformity of the light transmittance of the touch liquid crystal display device 100.

Please refer to FIG. 5. FIG. 5 is a partial cross-sectional structural diagram of a second embodiment of the touch liquid crystal display device of the present invention. The touch liquid crystal display device 300 has substantially the same structure as the touch liquid crystal display device 100. The main difference between the two is that the touch liquid crystal display device 300 further includes an insulating layer 16a. The insulating layer 16a is disposed on the plurality of first sensing electrodes 13a of the touch liquid crystal display device 300, the first dummy electrode 14a, and the first substrate 10a. The plurality of first sensing electrodes 13a and the first dummy are not disposed. The area of the electrode 14a. The protective layer 15a is covered on the insulating layer 16a.

The touch sensing liquid crystal display device 300 includes the insulating layer 16a. Therefore, the plurality of first sensing electrodes 13a and the first dummy electrode 14a are further protected by the insulating layer 16a, thereby improving the stability of the touch liquid crystal display device 300. Sex.

Please refer to FIG. 6 and FIG. 7 together. FIG. 6 is a schematic top plan view of a third embodiment of the touch liquid crystal display device of the present invention. FIG. 7 is a partially exploded perspective view of the touch liquid crystal display device of FIG. 6. FIG. The structure of the touch liquid crystal display device 400 is substantially the same as that of the touch liquid crystal display device 300. The main difference between the two is that the touch liquid crystal display device 400 further includes a plurality of second sensing electrodes 17b and at least one second virtual Electrode 18b. The plurality of second sensing electrodes 17b and the at least one second dummy electrode 18b are disposed on the insulating layer 16b of the touch liquid crystal display device 400. The plurality of second sensing electrodes 17b and the at least one second dummy electrode 18b are arranged in parallel with each other. The plurality of second sensing electrodes 17b are configured to cooperate with the plurality of first sensing electrodes 13b to sense a position where the touch liquid crystal display device 400 is touched, wherein each of the second sensing electrodes 17b is facing the first The second structure 113b is disposed away from the side of the second substrate 20, and the width of each of the second sensing electrodes 17b is smaller than the width of the second structure 113b directly opposite each second sensing electrode 17b. In other words, the second sensing electrode 17b has a certain gap between the two adjacent filter units on the opposite sides of the second sensing electrode 17b and oppositely disposed on the planar structure, or the second The width of the sensing electrode 17b is equal in plane structure to a gap between two adjacent filter units disposed opposite to each other on the opposite sides of the second sensing electrode 17b. Preferably, the length of each second sensing electrode 17b is greater than or equal to the length of the second structure 113b directly opposite each second sensing electrode 17b. In other words, each of the second sensing electrodes 17b extends from one side of the opposite side of the black matrix 111 to the other side on a planar structure, and the end of each of the second sensing electrodes 17b exceeds the black The peripheral edge of the matrix 111 is flush with the peripheral edge of the black matrix 111.

In the embodiment, the touch liquid crystal display device 400 includes a plurality of second dummy electrodes 18b. Each of the second dummy electrodes 18b is disposed opposite to a side of the second structure 113b facing away from the second substrate 20, and a side of the second structure 113b opposite to the second dummy electrode 18b facing away from the second substrate 20 The second sensing electrode 17b is not provided. The width of each of the second dummy electrodes 18b is less than or equal to the width of the second structure 113b directly opposite each of the second dummy electrodes 18b. The second dummy electrode 18b has a certain gap between the two adjacent filter units located on opposite sides of the second dummy electrode 18b and oppositely disposed on the planar structure, or the width of the second dummy electrode 18b is The plane structure is equal to a gap between two adjacent filter units disposed opposite to each other on the opposite sides of the second dummy electrode 18b. Preferably, the length of each of the second dummy electrodes 18b is greater than or equal to the length of the second structure 113b directly opposite each of the second dummy electrodes 18b. In other words, each of the second dummy electrodes 18b extends from one side of the opposite side of the black matrix 111 to the other side on a planar structure, and the end of each of the second dummy electrodes 18b exceeds the black matrix 111. The peripheral edge is flush with the peripheral edge of the black matrix 111. Further, a second dummy electrode 18b is disposed on a side of the second structure 113b on which the second sensing electrode 17b is disposed away from the second substrate 20.

It is to be understood that, in other modified embodiments, the insulating layer 16b is omitted, and the plurality of first sensing electrodes 13b, the first dummy electrodes 14b, the plurality of second sensing electrodes 17b, and the second dummy electrodes 18b are respectively Located on opposite sides of the first substrate 10b.

The present invention is not limited to the above embodiments. In other modified embodiments, the at least one first virtual electrode 14 and 14b may be omitted, and each of the first structures 112 and 112b is respectively provided with a first sensing. Electrodes 13, 13b. Similarly, the at least one second dummy electrode 18b may also be omitted, and each of the second structures 113b is respectively disposed with a second sensing electrode 17b.

The touch liquid crystal display devices 100, 300, and 400 may also be multi-domain touch liquid crystal display devices such as an IPS type.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

100, 300, 400. . . Touch liquid crystal display device

10, 10a, 50. . . First substrate

20, 60. . . Second substrate

30. . . Liquid crystal layer

40. . . Backlight module

11, 51. . . Color filter layer

12. . . Common electrode

13, 13a, 13b. . . First sensing electrode

14, 14a, 14b. . . First virtual electrode

15, 15a. . . The protective layer

R. . . First filter unit

G. . . Second filter unit

B. . . Third filter unit

111, 512. . . Black matrix

111a. . . grid

112, 112b. . . First structure

113, 113b. . . Second structure

17b. . . Second sensing electrode

18b. . . Second virtual electrode

16a, 53. . . Insulation

52. . . Sense electrode

70. . . Light source device

511. . . Filter unit

200. . . Touch display device

FIG. 1 is a schematic diagram of an optical path of a conventional touch display device.

2 is a partial cross-sectional structural view showing a first embodiment of a touch liquid crystal display device of the present invention.

3 is a schematic top plan view of the touch liquid crystal display device shown in FIG. 2 .

4 is a schematic diagram of an optical path of the touch liquid crystal display device of FIG. 2.

FIG. 5 is a partial cross-sectional structural view showing a second embodiment of the touch liquid crystal display device of the present invention.

FIG. 6 is a schematic top plan view of a third embodiment of a touch liquid crystal display device according to the present invention.

FIG. 7 is a partially exploded perspective view of the touch liquid crystal display device of FIG. 6. FIG.

100. . . Touch liquid crystal display device

10. . . First substrate

20. . . Second substrate

30. . . Liquid crystal layer

40. . . Backlight module

11. . . Color filter layer

12. . . Common electrode

13. . . First sensing electrode

14. . . First virtual electrode

15. . . The protective layer

R. . . First filter unit

G. . . Second filter unit

B. . . Third filter unit

111. . . Black matrix

twenty one. . . Drive component

twenty two. . . Pixel electrode

Claims (23)

A touch display device includes:
a first substrate;
a color filter layer disposed on one side of the first substrate, the color filter layer includes a plurality of filter units and a black matrix, the black matrix including a plurality of first structures and intersecting the plurality of first structures a plurality of second structures, the plurality of first structures and the plurality of second structures defining a complex grid, wherein the plurality of filter units are disposed in the grid such that the plurality of filter units are spaced apart from each other, the first plurality The arrangement direction of the structures is the same, and the arrangement of the second plurality of structures is the same;
a second substrate, the second substrate is disposed opposite to the first substrate;
a plurality of driving elements disposed on one side of the second substrate for controlling a luminous flux of light passing through the plurality of color filter units to achieve a picture display, wherein the plurality of driving elements and the color filter layer are located Between the first substrate and the second substrate; and a plurality of first sensing electrodes for sensing a position where the touch display device is touched, wherein each of the first sensing electrodes faces a first structure, and The width of each of the first sensing electrodes is less than or equal to the width of the first structure that each of the first sensing electrodes is facing. The touch display device of claim 1, wherein the first sensing electrode has a planar structure and two adjacent filter units disposed opposite to each other on the opposite sides of the first sensing electrode. There is a certain gap between them, or the width of the first sensing electrode is equal to the gap between the two adjacent filter units located on opposite sides of the first sensing electrode and oppositely disposed. The touch display device of claim 2, wherein the length of each of the first sensing electrodes is greater than or equal to the length of the first structure directly opposite each of the first sensing electrodes. The touch display device of claim 3, wherein each of the first sensing electrodes extends from one side of the opposite side of the black matrix to the other side on a planar structure, and each first The end of the sensing electrode is either beyond the peripheral edge of the black matrix or flush with the peripheral edge of the black matrix. The touch display device of claim 2, wherein each of the first sensing electrodes and the first structure facing each of the first sensing electrodes are respectively located on opposite sides of the first substrate. . The touch display device of claim 5, wherein the touch display device further comprises an insulating layer disposed on the plurality of first sensing electrodes and each two adjacent first sensing electrodes Between, for covering the plurality of first sensing electrodes. The touch display device of any one of claims 1 to 6, wherein the touch display device further comprises a plurality of second sensing electrodes, the plurality of second sensing electrodes being spaced apart from each other for Cooperating with the plurality of first sensing electrodes to sense a position where the touch display device is touched, wherein each second sensing electrode is disposed opposite to a side of the second structure facing away from the second substrate, and each The width of a second sensing electrode is less than or equal to the width of the second structure that each second sensing electrode is facing. The touch display device of claim 7, wherein the second sensing electrode has a planar structure and two adjacent filter units disposed opposite to each other on the opposite sides of the second sensing electrode. There is a certain gap between them, or the width of the second sensing electrode is equal to the gap between the two adjacent filter units located on opposite sides of the second sensing electrode and oppositely disposed. The touch display device of claim 8, wherein the length of each of the second sensing electrodes is greater than or equal to the length of the second structure directly opposite each of the second sensing electrodes. The touch display device of claim 9, wherein each of the second sensing electrodes extends from the side of the opposite sides of the black matrix to the other side on the planar structure, and each second sense The ends of the electrodes are either beyond the peripheral edge of the black matrix or flush with the peripheral edges of the black matrix. The touch display device of claim 8, wherein the plurality of second sensing electrodes are disposed on the insulating layer, and the plurality of first sensing electrodes are respectively located on opposite sides of the insulating layer. The touch display device of claim 1, wherein the touch display device further comprises at least one first dummy electrode, each of the first dummy electrodes facing away from a first structure away from the second substrate The first sensing electrode is not disposed on a side of the first structure facing away from the second substrate, and the width of each of the first dummy electrodes is less than or equal to each of the first virtual The width of the first structure that the electrode is facing. The touch display device of claim 12, wherein the first dummy electrode is in a planar structure between two adjacent filter units disposed on opposite sides of the first dummy electrode and disposed opposite to each other There is a certain gap, or the width of the first dummy electrode is equal to the gap between the two adjacent filter units located on opposite sides of the first dummy electrode and oppositely disposed. The touch display device of claim 13, wherein the length of each of the first dummy electrodes is greater than or equal to the length of the first structure directly opposite each of the first dummy electrodes. The touch display device of claim 14, wherein each of the first dummy electrodes extends from one side of the opposite side of the black matrix to the other side on a planar structure, and each of the first virtual The ends of the electrodes either extend beyond the peripheral edge of the black matrix or are flush with the peripheral edge of the black matrix. The touch display device of claim 13, wherein a first dummy electrode is disposed on a side of the first structure on which the first sensing electrode is disposed away from the second substrate. The touch display device of claim 7, wherein the touch display device further comprises at least one second dummy electrode, each of the second dummy electrodes facing away from a second structure away from the second substrate The second sensing electrode is disposed on a side of the second structure facing away from the second substrate, and the width of each second dummy electrode is less than or equal to each second virtual The width of the second structure that the electrode is facing. The touch display device of claim 17, wherein the second dummy electrode is in a planar structure between two adjacent filter units disposed on opposite sides of the second dummy electrode and disposed opposite to each other There is a certain gap, or the width of the second dummy electrode is equal to the gap between the two adjacent filter units located on opposite sides of the second virtual electrode and oppositely disposed. The touch display device of claim 18, wherein the length of each of the second dummy electrodes is greater than or equal to the length of the second structure directly opposite each of the second dummy electrodes. The touch display device of claim 19, wherein each second dummy electrode extends from one side of the opposite side of the black matrix to the other side on a planar structure, and each second virtual The ends of the electrodes either extend beyond the peripheral edge of the black matrix or are flush with the peripheral edge of the black matrix. The touch display device of claim 18, wherein a second dummy electrode is disposed on a side of the second structure on which the second sensing electrode is disposed away from the second substrate. The touch display device of claim 1, wherein a liquid crystal layer is further disposed between the first substrate and the second plate, and the plurality of driving elements are controlled by controlling a rotation angle of the liquid crystal layer. The luminous flux of the light of the plurality of color filter units. The touch display device of claim 1, wherein the plurality of first structures and/or the plurality of second structures are strip structures.