CN220064799U - Touch substrate and touch display device - Google Patents
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- CN220064799U CN220064799U CN202320876438.0U CN202320876438U CN220064799U CN 220064799 U CN220064799 U CN 220064799U CN 202320876438 U CN202320876438 U CN 202320876438U CN 220064799 U CN220064799 U CN 220064799U
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- 239000000758 substrate Substances 0.000 title claims abstract description 144
- 239000000463 material Substances 0.000 claims description 46
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 34
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000000377 silicon dioxide Substances 0.000 claims description 17
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 16
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 14
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- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 239000004408 titanium dioxide Substances 0.000 claims description 10
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims description 9
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims description 8
- 230000003750 conditioning effect Effects 0.000 claims description 4
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
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Abstract
The disclosure provides a touch substrate and a touch display device. The touch substrate comprises a substrate base plate and a touch electrode; at least three light adjusting layers are arranged on one side of the substrate in a lamination mode, and refractive indexes of adjacent light adjusting layers are different; the touch electrode is including setting up first touch electrode and the second touch electrode in substrate base plate one side that deviates from light regulation layer, and the second touch electrode sets up in first touch electrode one side that deviates from substrate base plate, and touch base plate still includes: a first insulating layer disposed between the substrate base and the first touch electrode; the second insulating layer is arranged between the first touch electrode and the second touch electrode; and a third insulating layer arranged on one side of the second touch electrode, which is away from the substrate. The touch substrate provided by the disclosure has a specular reflection function.
Description
Technical Field
The present utility model relates to the field of display technologies, and in particular, to a touch substrate and a touch display device.
Background
With the development of touch technology, a touch panel is used as a core component of a man-machine interaction system, and has been widely applied to various digital information display systems to meet the demands of people on information interaction and user experience. In addition, the mirror surface display products in the current market cannot meet the requirements of people on touch control and man-machine interaction in the intelligent Internet of things era.
Disclosure of Invention
The utility model provides a touch substrate and a touch display device, so that the touch substrate has a mirror reflection function.
The utility model provides a touch substrate, which comprises a substrate and a touch electrode;
at least three light adjusting layers are arranged on one side of the substrate base plate in a laminated mode, and refractive indexes of adjacent light adjusting layers are different;
the touch electrode is including setting up the substrate is in first touch electrode and the second touch electrode of light regulation layer one side that deviates from, the second touch electrode sets up first touch electrode deviates from the substrate one side, the touch substrate still includes:
a first insulating layer disposed between the substrate base plate and the first touch electrode;
the second insulating layer is arranged between the first touch electrode and the second touch electrode; and
and the third insulating layer is arranged on one side of the second touch electrode, which is away from the substrate.
In some embodiments, the at least three light conditioning layers include: the first light ray adjusting layer, the second light ray adjusting layer, the third light ray adjusting layer, the fourth light ray adjusting layer and the fifth light ray adjusting layer are sequentially stacked, the first light ray adjusting layer is far away from the substrate, and the fifth light ray adjusting layer is close to the substrate; and is also provided with
The refractive indexes of the first light adjusting layer, the third light adjusting layer and the fifth light adjusting layer are smaller than those of the second light adjusting layer and the fourth light adjusting layer.
In some embodiments, the materials of the first, third, and fifth light modulating layers include at least one of: silica and magnesium fluoride;
the materials of the second light adjusting layer and the fourth light adjusting layer include at least one of: titanium dioxide and niobium pentoxide.
In some embodiments, in the case where the host materials of the first, third, and fifth light adjustment layers are silicon dioxide and the host materials of the second and fourth light adjustment layers are niobium pentoxide, the thickness of the fifth light adjustment layer is greater than the thicknesses of the first, second, third, and fourth light adjustment layers, and the thicknesses of the second and fourth light adjustment layers are greater than the thicknesses of the first and third light adjustment layers.
In some embodiments, the thicknesses of the first, second, third, fourth, and fifth light modulating layers are all greater than or equal to 50 nanometers and less than or equal to 150 nanometers.
In some embodiments, the first insulating layer and the second insulating layer have different refractive indices, and the second insulating layer and the third insulating layer have different refractive indices.
In some embodiments, the refractive index of the second insulating layer is less than the refractive index of the first insulating layer and the third insulating layer.
In some embodiments, the material of the first insulating layer and the third insulating layer comprises at least one of: titanium dioxide and niobium pentoxide, the material of the second insulating layer comprising at least one of: silica and magnesium fluoride.
In some embodiments, the at least three light conditioning layers include: the light source comprises a substrate, a sixth light adjusting layer, a seventh light adjusting layer and an eighth light adjusting layer, wherein the sixth light adjusting layer, the seventh light adjusting layer and the eighth light adjusting layer are sequentially stacked, the sixth light adjusting layer is close to the substrate, the eighth light adjusting layer is far away from the substrate, and the refractive index of the seventh light adjusting layer is smaller than that of the sixth light adjusting layer and that of the eighth light adjusting layer.
In some embodiments, the materials of the sixth light modulating layer and the eighth light modulating layer include at least one of: titanium dioxide and niobium pentoxide, the material of the seventh light adjusting layer including at least one of: silica and magnesium fluoride.
In some embodiments, in a case where the host material of the sixth light adjusting layer and the eighth light adjusting layer is niobium pentoxide and the host material of the seventh light adjusting layer is silicon dioxide, the thicknesses of the sixth light adjusting layer and the eighth light adjusting layer are each greater than or equal to 100 nanometers and less than or equal to 130 nanometers, and the thickness of the seventh light adjusting layer is greater than or equal to 80 nanometers and less than or equal to 110 nanometers.
In some embodiments, the first touch electrode and the second touch electrode cross each other to form a metal mesh.
In some embodiments, the metal mesh comprises:
the first metal grid is formed by the mutual intersection of the first touch electrodes and comprises a first node positioned at the intersection position and a first hollowed-out area surrounded by the first touch electrodes; and
the second metal grid is formed by the mutual intersection of the second touch electrodes and comprises second nodes positioned at the intersection positions and a second hollowed-out area surrounded by the second touch electrodes;
in orthographic projection on the substrate, the first node is located at the center of the second hollowed-out area, and the second node is located at the center of the first hollowed-out area.
In some embodiments, the surfaces of the first touch electrode and the second touch electrode facing away from the substrate are uneven.
The disclosure provides a touch display device, which comprises a display panel and the touch substrate according to any embodiment, wherein the touch substrate is positioned on the light emitting side of the display panel.
In some embodiments, the display panel is located on a side of the substrate base plate facing away from the light adjustment layer.
In some embodiments, the touch substrate is attached to the display panel by an optical adhesive.
Compared with the prior art, the utility model has the following advantages:
the technical scheme of the disclosure provides a touch substrate and a touch display device, wherein one side of the substrate is provided with at least three light adjusting layers in a lamination manner, and refractive indexes of adjacent light adjusting layers are different; the touch electrode is including setting up the substrate is in first touch electrode and the second touch electrode of light regulation layer one side that deviates from, the second touch electrode sets up first touch electrode deviates from the substrate one side, the touch substrate still includes: a first insulating layer disposed between the substrate base plate and the first touch electrode; the second insulating layer is arranged between the first touch electrode and the second touch electrode; and a third insulating layer arranged on one side of the second touch electrode, which is away from the substrate. At least three light adjusting layers are arranged in the touch substrate, and refractive indexes of adjacent light adjusting layers are different, so that the touch substrate has a specular reflection function.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional structure of a touch substrate provided in the present disclosure;
fig. 2 is a schematic cross-sectional view showing an example of a first touch substrate;
fig. 3 is a schematic cross-sectional structure of a second example of a touch substrate;
FIG. 4 shows a cross-sectional electron microscope view of an example of a first touch substrate;
fig. 5 is a schematic plan view of a metal mesh formed by a first touch electrode and a second touch electrode;
FIG. 6 shows a cross-sectional electron microscope view of a first touch electrode and a second touch electrode;
fig. 7 is a schematic cross-sectional view of a touch display device according to the present disclosure;
fig. 8 is a schematic cross-sectional view showing an example of a first touch display device;
fig. 9 is a schematic cross-sectional view showing an example of a second touch display device.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
The disclosure provides a touch substrate, referring to fig. 1, the touch substrate includes a substrate 11 and a touch electrode 12, wherein, one side of the substrate 11 is provided with at least three light adjusting layers 10 in a lamination manner, and refractive indexes of adjacent light adjusting layers 10 are different; the touch electrode 12 includes a first touch electrode 121 and a second touch electrode 122 disposed on a side of the substrate 11 facing away from the light adjusting layer 10, and the second touch electrode 122 is disposed on a side of the first touch electrode 121 facing away from the substrate 11.
As shown in fig. 1, the touch substrate further includes: a first insulating layer 13 disposed between the substrate base 11 and the first touch electrode 121; a second insulating layer 14 disposed between the first touch electrode 121 and the second touch electrode 122; and a third insulating layer 15 disposed on a side of the second touch electrode 122 facing away from the substrate 11.
The substrate 11 may be a substrate such as glass, and is used as a substrate or a protective layer for the light adjusting layer 10 and the touch electrode 12.
The touch substrate provided by the disclosure can realize specular reflection, and the principle is as follows: based on the thin film interference theory, when light is incident from one medium to another medium, refraction and reflection of the light are generated, an interference phenomenon of the light is generated when the optical path difference between a plurality of reflected light beams satisfies a certain condition, and when the optical path difference between the reflected light beams is an integer multiple of 2pi, the interference is enhanced, and the reflected light is increased.
In a specific implementation, the touch substrate includes more than three light adjusting layers 10 to improve the specular reflectivity of the touch substrate. By adjusting the material, thickness, number, etc. of the light adjusting layer 10, the touch substrate provided by the present disclosure can achieve a reflectivity of 30 to 70%.
According to the touch substrate provided by the disclosure, at least three light adjusting layers 10 are arranged in the touch substrate, and the refractive indexes of the adjacent light adjusting layers 10 are different, so that the touch substrate can have a specular reflection function. With the laminating of touch substrate and display panel that this disclosure provided, can realize integration of touch, specular reflection and display function, solved current display product function singleness, the weak problem of interactive ability can satisfy people to information interaction, user experience's demand. The touch substrate provided by the disclosure is simple in preparation process and low in cost, and has great competitive power in markets such as markets and intelligent households.
In addition, in the touch substrate provided by the disclosure, the reflection function realization layer formed by the at least three light adjustment layers 10 and the touch electrode 12 are respectively arranged at two sides of the substrate 11, so that interference of the touch electrode 12 on the specular reflection function can be avoided, and the specular reflection effect of the touch substrate is improved.
In some embodiments, as shown in fig. 2, the at least three light modulation layers 10 include: the first light ray adjusting layer 21, the second light ray adjusting layer 22, the third light ray adjusting layer 23, the fourth light ray adjusting layer 24 and the fifth light ray adjusting layer 25 are sequentially stacked, the first light ray adjusting layer 21 is far away from the substrate 11, and the fifth light ray adjusting layer 25 is close to the substrate 11; and refractive indexes of the first, third, and fifth light adjusting layers 21, 23, and 25 are smaller than those of the second and fourth light adjusting layers 22 and 24.
In the present embodiment, the five-layer film system of low-high-low refractive index constituted by the first light adjustment layer 21, the second light adjustment layer 22, the third light adjustment layer 23, the fourth light adjustment layer 24, and the fifth light adjustment layer 25 is a mirror function realizing layer.
In some embodiments, the materials of the first, third, and fifth light adjusting layers 21, 23, and 25 include at least one of: silica and magnesium fluoride; the materials of the second light adjusting layer 22 and the fourth light adjusting layer 24 include at least one of: titanium dioxide and niobium pentoxide.
The first light adjusting layer 21, the third light adjusting layer 23 and the fifth light adjusting layer 25 are all made of low refractive index materials, and any two layers of the first light adjusting layer 21, the third light adjusting layer 23 and the fifth light adjusting layer 25 may be the same or different. The second light adjusting layer 22 and the fourth light adjusting layer 24 are both made of a high refractive index material, and the materials of the second light adjusting layer 22 and the fourth light adjusting layer 24 may be the same or different.
In some embodiments, in the case where the host materials of the first, third, and fifth light adjustment layers 21, 23, and 25 are silicon dioxide and the host materials of the second and fourth light adjustment layers 22 and 24 are niobium pentoxide, the thickness of the fifth light adjustment layer 25 is greater than the thicknesses of the first, second, third, and fourth light adjustment layers 21, 22, 23, and 24, and the thicknesses of the second and fourth light adjustment layers 22 and 24 are greater than the thicknesses of the first and third light adjustment layers 21 and 23. In this way, a better specular reflection effect can be obtained.
In some embodiments, the thicknesses of the first light-adjusting layer 21, the second light-adjusting layer 22, the third light-adjusting layer 23, the fourth light-adjusting layer 24, and the fifth light-adjusting layer 25 are all greater than or equal to 50 nanometers and less than or equal to 150 nanometers.
Illustratively, as shown in fig. 4, the thickness h1 of the first light adjusting layer 21, the thickness h2 of the second light adjusting layer 22, the thickness h3 of the third light adjusting layer 23, the thickness h4 of the fourth light adjusting layer 24, and the thickness h5 of the fifth light adjusting layer 25 are 75.3 nm, 128.8 nm, 57.5 nm, 97.1 nm, and 138.7 nm in this order. In fig. 4, the host materials of the first, third, and fifth light adjustment layers 21, 23, and 25 are silicon dioxide, and the host materials of the second and fourth light adjustment layers 22 and 24 are niobium pentoxide.
In some embodiments, as shown in fig. 1, the refractive index of the first insulating layer 13 is different from that of the second insulating layer 14, and the refractive index of the second insulating layer 14 is different from that of the third insulating layer 15.
In the present embodiment, the three insulating layers including the first insulating layer 13, the second insulating layer 14, and the third insulating layer 15 have different refractive indices between adjacent insulating layers, and thus the specular reflection function can be achieved by adjusting the material, thickness, and the like of the insulating layers. By arranging the reflection function realizing layers on both sides of the substrate 11, one side is the reflection function realizing layer formed by at least three light adjusting layers 10, and the other side is the reflection function realizing layer formed by three insulating layers, so that the mirror reflectivity of the touch substrate can be improved, the reflectivity difference between different wavelengths can be reduced, and the reflection color cast can be prevented.
In some embodiments, the refractive index of the second insulating layer 14 is smaller than the refractive indices of the first insulating layer 13 and the third insulating layer 15.
In the present embodiment, the second insulating layer 14 having a relatively low refractive index is provided between the first insulating layer 13 and the third insulating layer 15 having a relatively high refractive index, and the three-layer film system of high-low-high refractive index constituted by the first insulating layer 13, the second insulating layer 14, and the third insulating layer 15 is a mirror function realizing layer.
In some embodiments, the materials of the first insulating layer 13 and the third insulating layer 15 include at least one of: titanium dioxide and niobium pentoxide; the material of the second insulating layer 14 includes at least one of: silica and magnesium fluoride.
The first insulating layer 13 and the third insulating layer 15 are both made of a high refractive index material, and the second insulating layer 14 is made of a low refractive index material. The materials of the first insulating layer 13 and the third insulating layer 15 may be the same or different.
In some embodiments, as shown in fig. 3, the at least three light modulation layers 10 include: the sixth light adjusting layer 31, the seventh light adjusting layer 32, and the eighth light adjusting layer 33 are sequentially stacked, the sixth light adjusting layer 31 is disposed close to the substrate 11, the eighth light adjusting layer 33 is disposed away from the substrate 11, and the refractive index of the seventh light adjusting layer 32 is smaller than the refractive indices of the sixth light adjusting layer 31 and the eighth light adjusting layer 33.
As shown in fig. 3, a seventh light adjusting layer 32 of a lower refractive index is disposed between the sixth light adjusting layer 31 of a higher refractive index and the eighth light adjusting layer 33. The high-low-high refractive index three-layer film system constituted by the sixth light adjustment layer 31, the seventh light adjustment layer 32, and the eighth light adjustment layer 33 is a mirror function realizing layer.
In some embodiments, the materials of the sixth light adjusting layer 31 and the eighth light adjusting layer 33 include at least one of: titanium dioxide and niobium pentoxide, and the material of the seventh light adjusting layer 32 includes at least one of: silica and magnesium fluoride.
The sixth light adjusting layer 31 and the eighth light adjusting layer 33 are made of a high refractive index material, and the seventh light adjusting layer 32 is made of a low refractive index material. The materials of the sixth light adjusting layer 31 and the eighth light adjusting layer 33 may be the same or different.
In some embodiments, in the case where the host material of the sixth light adjustment layer 31 and the eighth light adjustment layer 33 is niobium pentoxide and the host material of the seventh light adjustment layer 32 is silicon dioxide, the thicknesses of the sixth light adjustment layer 31 and the eighth light adjustment layer 33 are each greater than or equal to 100 nanometers and less than or equal to 130 nanometers, and the thickness of the seventh light adjustment layer 32 is greater than or equal to 80 nanometers and less than or equal to 110 nanometers. In this way, a better specular reflection effect can be obtained.
For example, the thicknesses of the sixth light adjusting layer 31 and the eighth light adjusting layer 33 are 113 nm and the thickness of the seventh light adjusting layer 32 is 97 nm, so that the specular reflectivity can be further improved.
In some embodiments, as shown in fig. 5, the first touch electrode 121 and the second touch electrode 122 cross each other to form a metal mesh. The first touch electrode 121 is a driving electrode, and the second touch electrode 122 is an sensing electrode; alternatively, the first touch electrode 121 is a sensing electrode, and the second touch electrode 122 is a driving electrode.
In the present embodiment, the second insulating layer 14 corresponds to an insulating layer between the first touch electrode 121 and the second touch electrode 122, and the first insulating layer 13 and the third insulating layer 15 correspond to protective layers of the first touch electrode 121 and the second touch electrode 122.
In some embodiments, as shown in fig. 5, the metal mesh includes: a first metal grid (such as a grid formed by solid lines in fig. 5) formed by mutually crossing the first touch electrodes 121, including a first node 51 at a crossing position, and a first hollowed-out area 52 surrounded by the first touch electrodes 121; and a second metal mesh (such as the mesh formed by the long dashed line in fig. 5), which is formed by the second touch electrodes 122 crossing each other, and includes a second node 53 at the crossing position, and a second hollowed-out area 54 surrounded by the second touch electrodes 122; in the orthographic projection on the substrate 11, the first node 51 is located at the center of the second hollowed-out area 54, and the second node 53 is located at the center of the first hollowed-out area 52.
In some embodiments, as shown in fig. 6, the surfaces of the first touch electrode 121 and the second touch electrode 122 facing away from the side of the substrate 11 are uneven.
In order to avoid short circuit, the line widths of the first touch electrode 121 and the second touch electrode 122 forming the metal mesh structure are small, and in this case, the first touch electrode 121 and the second touch electrode 122 having uneven surfaces are easily formed.
The disclosure further provides a touch display device, referring to fig. 7, which includes a display panel 71 and a touch substrate 72 according to any of the embodiments, where the touch substrate 72 is located on a light emitting side of the display panel 71. The touch substrate 72 and the display panel 71 may be attached by an optical adhesive 73.
It should be noted that, the touch display device in this embodiment may be: electronic paper, mobile phone, tablet computer, television, notebook computer, digital photo frame, navigator and any other product or component with 2D or 3D display function.
The optical cement 73 is a special adhesive for cementing a transparent optical element, and has the characteristics of no color, transparency, light transmittance of more than 90%, good cementing strength and the like. The optical cement 73 may include silicone, acrylic, and adhesives such as unsaturated polyesters, polyurethanes, and epoxies, and may also include treatments to improve its optical properties or reduce cure shrinkage.
In a specific implementation, the display panel 71 may be located on a side of the light modulation layer 10 facing away from the substrate 11, and may also be located on a side of the substrate 11 facing away from the light modulation layer 10. As shown in fig. 7, when the touch substrate 72 and the display panel 71 are attached by the optical adhesive 73, the display panel 71 is disposed on the side of the substrate 11 away from the first light adjusting layer 2113, so that the interference of the optical adhesive 73 on the specular reflection effect of the light adjusting layer 10 can be avoided.
As shown in fig. 8 or 9, the first touch electrode 121 of the touch substrate 72 is disposed between the first insulating layer 13 and the second insulating layer 14, the second touch electrode 122 is disposed between the second insulating layer 14 and the third insulating layer 15, and the display panel 71 is attached to a side of the third insulating layer 15 facing away from the substrate 11 through the optical adhesive 73.
According to the embodiment, the touch substrate is attached to the display panel through the optical adhesive (OCA, optically Clear Adhesive), and the obtained touch display device can achieve mirror surfaces, touch and display functions simultaneously, so that the problems of single function and weak interaction capability of an existing display product are solved, and the requirements of people on information interaction and user experience are met.
The present disclosure also provides a method for preparing a display substrate, the touch substrate including a substrate 11 and a touch electrode 12, the method comprising:
step S01: a substrate base 11 is provided.
Step S02: at least three light adjusting layers 10 are sequentially formed on one side of the base substrate 11, and refractive indexes of adjacent light adjusting layers 10 are different.
Step S03: a first insulating layer 13, a first touch electrode 121, a second insulating layer 14, a second touch electrode 122, and a third insulating layer 15 are sequentially formed on a side of the substrate 11 facing away from the light adjusting layer 10.
It should be noted that the execution sequence of the step S02 and the step S03 may be adjusted according to actual needs, which is not specifically limited in the present disclosure.
The touch substrate according to any one of the embodiments can be prepared by using the preparation method provided by the disclosure, and the structure and effect of the prepared touch substrate can be described with reference to the foregoing embodiments.
The step S03 may specifically include: forming a first insulating layer 13 on a side of the substrate 11 facing away from the light modulation layer 10; forming a first touch electrode 121 on a side of the first insulating layer 13 facing away from the substrate 11; forming a second insulating layer 14 on a side of the first touch electrode 121 facing away from the substrate 11; forming a second touch electrode 122 on a side of the second insulating layer 14 facing away from the substrate 11; a third insulating layer 15 is formed on a side of the second touch electrode 122 facing away from the substrate 11.
In specific implementation, the light adjusting layer 10 may be prepared by a direct current magnetron sputtering process or a direct current magnetron sputtering process. Different light modulating layers 10 may be prepared using the same or different processes.
In some embodiments, when the light modulating layer 10 is a high refractive index material such as titanium dioxide, a direct current magnetron sputtering process may be employed; when the light modulating layer 10 is a low refractive index material such as silicon dioxide, it may be formed using a radio frequency magnetron sputtering process.
In some embodiments, step S02 may specifically include: a fifth light adjusting layer 25 is formed on one side of the substrate 11, a fourth light adjusting layer 24 is formed on one side of the fifth light adjusting layer 25 away from the substrate 11, a third light adjusting layer 23 is formed on one side of the fourth light adjusting layer 24 away from the substrate 11, a second light adjusting layer 22 is formed on one side of the third light adjusting layer 23 away from the substrate 11, and a first light adjusting layer 21 is formed on one side of the second light adjusting layer 22 away from the substrate 11, so as to obtain the touch substrate shown in fig. 2.
In this embodiment, the second light adjusting layer 22 and the fourth light adjusting layer 24 with higher refractive indexes may be prepared by using a direct current magnetron sputtering process, and the first light adjusting layer 21, the third light adjusting layer 23 and the fifth light adjusting layer 25 with lower refractive indexes may be prepared by using a radio frequency magnetron sputtering process.
In some embodiments, step S02 may specifically include: a sixth light adjusting layer 31 is formed on one side of the substrate 11, a seventh light adjusting layer 32 is formed on one side of the sixth light adjusting layer 31 facing away from the substrate 11, and an eighth light adjusting layer 33 is formed on one side of the seventh light adjusting layer 32 facing away from the substrate 11, so as to obtain the touch substrate shown in fig. 3.
In this embodiment, the sixth light adjusting layer 31 and the eighth light adjusting layer 33 with higher refractive indexes may be prepared by using a dc magnetron sputtering process, and the seventh light adjusting layer 32 with lower refractive index may be prepared by using a radio frequency magnetron sputtering process.
It should be noted that, the preparation of each light adjusting layer 10 is not limited to the above process, and may be, for example, prepared by vapor deposition, and the specific process for preparing the film layer may be determined according to the actual situation of the film layer material, and the embodiment is not limited thereto.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The above description is made in detail on a touch substrate and a touch display device provided by the present utility model, and specific examples are applied to explain the principles and embodiments of the present utility model, and the above examples are only used to help understand the method and core ideas of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.
Claims (17)
1. A touch substrate comprises a substrate and a touch electrode;
at least three light adjusting layers are arranged on one side of the substrate base plate in a laminated mode, and refractive indexes of adjacent light adjusting layers are different;
the touch electrode is including setting up the substrate is in first touch electrode and the second touch electrode of light regulation layer one side that deviates from, the second touch electrode sets up first touch electrode deviates from the substrate one side, the touch substrate still includes:
a first insulating layer disposed between the substrate base plate and the first touch electrode;
the second insulating layer is arranged between the first touch electrode and the second touch electrode; and
and the third insulating layer is arranged on one side of the second touch electrode, which is away from the substrate.
2. The touch substrate of claim 1, the at least three light conditioning layers comprising: the first light ray adjusting layer, the second light ray adjusting layer, the third light ray adjusting layer, the fourth light ray adjusting layer and the fifth light ray adjusting layer are sequentially stacked, the first light ray adjusting layer is far away from the substrate, and the fifth light ray adjusting layer is close to the substrate; and is also provided with
The refractive indexes of the first light adjusting layer, the third light adjusting layer and the fifth light adjusting layer are smaller than those of the second light adjusting layer and the fourth light adjusting layer.
3. The touch substrate of claim 2, wherein the materials of the first, third, and fifth light-adjusting layers comprise at least one of: silica and magnesium fluoride;
the materials of the second light adjusting layer and the fourth light adjusting layer include at least one of: titanium dioxide and niobium pentoxide.
4. The touch substrate according to claim 2, wherein, in the case where the host materials of the first, third, and fifth light adjustment layers are silicon dioxide and the host materials of the second and fourth light adjustment layers are niobium pentoxide, the thickness of the fifth light adjustment layer is greater than the thicknesses of the first, second, third, and fourth light adjustment layers, and the thicknesses of the second and fourth light adjustment layers are greater than the thicknesses of the first and third light adjustment layers.
5. The touch substrate of claim 4, wherein the thicknesses of the first, second, third, fourth, and fifth light-adjusting layers are all greater than or equal to 50 nanometers and less than or equal to 150 nanometers.
6. The touch substrate of claim 1, wherein the first insulating layer and the second insulating layer have different refractive indices, and the second insulating layer and the third insulating layer have different refractive indices.
7. The touch substrate of claim 6, wherein the second insulating layer has a refractive index less than the refractive indices of the first and third insulating layers.
8. The touch substrate of claim 7, wherein the material of the first insulating layer and the third insulating layer comprises at least one of: titanium dioxide and niobium pentoxide, the material of the second insulating layer comprising at least one of: silica and magnesium fluoride.
9. The touch substrate of claim 1, wherein the at least three light conditioning layers comprise: the light source comprises a substrate, a sixth light adjusting layer, a seventh light adjusting layer and an eighth light adjusting layer, wherein the sixth light adjusting layer, the seventh light adjusting layer and the eighth light adjusting layer are sequentially stacked, the sixth light adjusting layer is close to the substrate, the eighth light adjusting layer is far away from the substrate, and the refractive index of the seventh light adjusting layer is smaller than that of the sixth light adjusting layer and that of the eighth light adjusting layer.
10. The touch substrate of claim 9, wherein the materials of the sixth and eighth light-adjusting layers comprise at least one of: titanium dioxide and niobium pentoxide, the material of the seventh light adjusting layer including at least one of: silica and magnesium fluoride.
11. The touch substrate according to claim 9, wherein, in the case where the host materials of the sixth light adjustment layer and the eighth light adjustment layer are niobium pentoxide and the host material of the seventh light adjustment layer is silicon dioxide, the thicknesses of the sixth light adjustment layer and the eighth light adjustment layer are each greater than or equal to 100 nanometers and less than or equal to 130 nanometers, and the thickness of the seventh light adjustment layer is greater than or equal to 80 nanometers and less than or equal to 110 nanometers.
12. The touch substrate of any of claims 1 to 11, wherein the first touch electrode and the second touch electrode cross each other to form a metal mesh.
13. The touch substrate of claim 12, wherein the metal mesh comprises:
the first metal grid is formed by the mutual intersection of the first touch electrodes and comprises a first node positioned at the intersection position and a first hollowed-out area surrounded by the first touch electrodes; and
the second metal grid is formed by the mutual intersection of the second touch electrodes and comprises second nodes positioned at the intersection positions and a second hollowed-out area surrounded by the second touch electrodes;
in orthographic projection on the substrate, the first node is located at the center of the second hollowed-out area, and the second node is located at the center of the first hollowed-out area.
14. The touch substrate of claim 12, wherein the first touch electrode and the second touch electrode have an uneven surface on a side facing away from the substrate.
15. A touch display device, comprising a display panel and the touch substrate according to any one of claims 1 to 14, wherein the touch substrate is located on a light emitting side of the display panel.
16. The touch display device of claim 15, wherein the display panel is located on a side of the substrate base plate facing away from the light modulating layer.
17. The touch display device of claim 15, wherein the touch substrate is attached to the display panel by an optical adhesive.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320876438.0U CN220064799U (en) | 2023-04-18 | 2023-04-18 | Touch substrate and touch display device |
| US18/312,038 US12039136B2 (en) | 2020-11-18 | 2023-05-04 | Touch substrate having layers with varying refractive index, touch displaying device, and manufacturing method of touch substrate |
| US18/672,157 US20240329779A1 (en) | 2020-11-18 | 2024-05-23 | Touch substrate having layers with varying refractive index, touch displaying device, and manufacturing method of touch substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320876438.0U CN220064799U (en) | 2023-04-18 | 2023-04-18 | Touch substrate and touch display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220064799U true CN220064799U (en) | 2023-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320876438.0U Active CN220064799U (en) | 2020-11-18 | 2023-04-18 | Touch substrate and touch display device |
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| Country | Link |
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| CN (1) | CN220064799U (en) |
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2023
- 2023-04-18 CN CN202320876438.0U patent/CN220064799U/en active Active
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