TW201633081A - Low chrominance touch control substrate - Google Patents

Abstract

A low chrominance touch control substrate comprises a light-transmitting panel, an insulating layer, a first transparent conducting layer disposed between the insulating layer and the light-transmitting panel, a second transparent conducting layer disposed at the other side of the insulating layer, a first adjusting unit and a second adjusting unit. The first adjusting unit is disposed on one side of the first transparent conducting layer, and comprises at least two first adjusting films disposed in a sandwiching manner, wherein one of the first adjusting films has a refractive index of 2-2.4, and the other of the first adjusting films has a refractive index of 1.4-1.6. The second adjusting unit is disposed on one side of the second transparent conducting layer and comprises at least two second adjusting films disposed in a sandwiching manner; one of the second adjusting films has a refractive index of 2-2.4, and the other of the second adjusting films has a refractive index of 1.4-1.6. By disposing the first adjusting unit and the second adjusting unit, the chrominance may be reduced so that the product quality is improved.

Description

Low color difference touch substrate

The invention relates to a touch substrate, in particular to a capacitive and non-bridge type low color difference touch substrate.

Common touch substrates are mainly divided into resistive, capacitive, infrared, and surface acoustic wave. Among them, capacitive touch substrates can be GG (Glass-Glass) and GF (Glass-Film), for example, the former requires two times. Fit, the yield of the fit is generally low, the latter is limited by the high-priced ITO film material in the hands of a few Japanese merchants, in order to effectively reduce costs, so OGS (One Glass Solution) structure has attracted attention. On the market, OGS can be roughly divided into bridge type and non-bridge type. The traditional bridge type needs to provide the pattern of forming capacitance characteristics by exposure, etching, etc., and the non-bridge is derived due to the cumbersome process and the expensive production equipment. The manufacturing mode of the touch panel.

The non-bridged touch substrate generally comprises a transparent plate, and a first transparent conductive layer, an insulating layer and a second transparent conductive layer are sequentially stacked on the transparent plate from bottom to top.

The first transparent conductive film layer has a plurality of first patterns separated from each other and arranged parallel to a first direction, and the second transparent conductive layer has a plurality of second patterns separated from each other and arranged parallel to a second direction, a picture The second pattern and the second pattern are interlaced and separated by an insulating layer. The capacitive touch panel function is provided by forming a capacitance at the intersection of the first pattern and the second pattern. Since the aforementioned design does not require a bridging structure, the number of masks can be reduced and short circuits due to etching or exposure can be avoided.

However, as the size of the touch panel increases, it is necessary to lengthen the lengths of the first pattern and the second pattern so that they can be distributed over a relatively large transparent plate. However, when the length is lengthened, the problem of increased resistance is generated.

In order to overcome the aforementioned technical obstacles, the most common practice is to increase the thickness of the first transparent conductive layer and the second transparent conductive layer to lower the electrical resistance thereof. Although the method can solve the problem of resistance, the thickening of the first transparent conductive layer and the second transparent conductive layer may cause serious dispersion phenomenon, resulting in uneven transmittance of the non-bridged touch panel, so that the first pattern The outline of the pattern with the second pattern is obvious, and the color difference between the first transparent conductive layer and the second transparent conductive layer for the transparent plate is apparent in appearance, and the color difference problem is serious, thereby affecting the appearance quality of the product.

Accordingly, it is an object of the present invention to provide a low chromaticity touch substrate capable of reducing chromatic aberration under conditions in which the thickness of the transparent conductive layer is relatively thick.

Therefore, the low chromaticity touch substrate of the present invention comprises: a light transmissive plate, an insulating layer, a first transparent conductive layer, a second transparent conductive layer, a first adjusting unit, and a second adjusting unit.

The insulating layer is spaced apart from the light transmissive sheet. The first transparent conductive layer is disposed on a side of the insulating layer facing the transparent plate, and includes a first front surface facing the transparent plate, and a first surface facing the transparent plate On the back side, the first transparent conductive layer has a thickness of 20 to 200 nm. The second transparent conductive layer is disposed on a side of the insulating layer facing away from the transparent plate, and includes a second front surface facing the transparent plate, and a second back surface facing away from the transparent plate, the second The transparent conductive layer has a thickness of 20 to 200 nm.

The first adjusting unit is disposed on one of the first front surface and the first back surface of the first transparent conductive layer, and includes at least two first adjusting films disposed in a stack, wherein a refractive index of the first adjusting film is 2 ~2.4, the other first adjustment film has a refractive index of 1.4 to 1.6. The second adjusting unit is disposed on one of the second front surface and the second back surface of the second transparent conductive layer, and includes at least two second adjusting films disposed in a stack, wherein a second adjusting film has a refractive index of 2 ~2.4, the other second adjustment film has a refractive index of 1.4 to 1.6.

When the first adjusting unit is disposed on the first front surface of the first transparent conductive layer, the first adjusting films are staggered according to the refractive index height from the direction of being adjacent to and away from the transparent transparent sheet, and are closest to the transparent light. The first adjustment film of the sheet has a refractive index of 2 to 2.4.

When the first adjusting unit is disposed on the first back surface of the first transparent conductive layer, the first adjusting films are staggered according to a low refractive index from a direction adjacent to the transparent transparent sheet, and are closest to the transparent surface. The first adjustment film of the light sheet has a refractive index of 1.4 to 1.6.

When the second adjusting unit is disposed on the second front surface of the second transparent conductive layer, the second adjusting films are staggered according to the refractive index from the direction adjacent to the transparent transparent sheet, and are closest to the transparent transparent sheet. The second adjustment film has a refractive index of 2 to 2.4.

When the second adjusting unit is disposed on the second back surface of the second transparent conductive layer, the second adjusting films are staggered according to the low refractive index from the direction of being adjacent to the transparent transparent sheet, and are closest to the transparent surface. The second adjustment film of the light sheet has a refractive index of 1.4 to 1.6.

The effect of the present invention is that the first adjustment unit and the second adjustment unit are disposed, and the first adjustment film of the first adjustment unit and the second adjustment film of the second adjustment unit are arranged in the order as defined in the present application. At the same time, the chromatic aberration can be effectively and greatly reduced to improve product quality. In addition, the low-color difference touch substrate (screen) uses a full air-gap or air-gap on various display modules, and the same effect can be obtained.

1‧‧‧Transparent sheet

2‧‧‧Insulation

3‧‧‧First transparent conductive layer

301‧‧‧ first main body

302‧‧‧First connection

31‧‧‧ first positive

32‧‧‧ first back

4‧‧‧Second transparent conductive layer

401‧‧‧Second Main Body

402‧‧‧Second connection

41‧‧‧Second positive

42‧‧‧ second back

5‧‧‧First adjustment unit

51, 52‧‧‧ first adjustment film

6‧‧‧Second adjustment unit

61, 62‧‧‧ second adjustment film

X‧‧‧ first direction

Y‧‧‧second direction

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is a side elevational view of a first embodiment of the low color difference touch substrate of the present invention; FIG. A front view of the first embodiment mainly shows a light transmissive plate of the first embodiment, a relationship between a first transparent conductive layer and a second transparent conductive layer; and FIG. 3 is a view of the low color difference touch substrate of the present invention. FIG. 4 is a side view of a third embodiment of the low color difference touch substrate of the present invention; FIG. 5 is a view of a fourth embodiment of the low color difference touch substrate of the present invention; Side view; and 6 is a schematic view showing the appearance of a low color difference touch substrate of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 1 and 2, a first embodiment of the low color difference touch substrate of the present invention comprises a light transmissive sheet material 1, an insulating layer 2 spaced apart from the light transmissive sheet material 1, and a layer disposed on the insulating layer 2 facing the through a first transparent conductive layer 3 on one side of the light sheet 1, a second transparent conductive layer 4 disposed on a side of the insulating layer 2 facing away from the transparent sheet 1, and a first adjusting unit 5 and a second Adjustment unit 6.

The material of the transparent plate 1 may specifically be a glass plate, a sapphire plate or a plastic plate. The material of the plastic sheet may specifically be polycarbonate (PC), polymethyl methacrylate (PMMA) or polyethylene terephthalate (PET).

The material of the insulating layer 2 may specifically be a photoresist type insulating material (for example, acetate), cerium oxide (SiO ₂ ) or polymethyl methacrylate (PMMA).

The first transparent conductive layer 3 includes a first front surface 31 facing the light transmissive sheet material 1, and a first back surface 32 facing away from the light transmissive sheet material 1. The second transparent conductive layer 4 includes a second front surface 41 facing the light transmissive sheet material 1, and a second back surface 42 facing away from the light transmissive sheet material 1.

The first transparent conductive layer 3 and the second transparent conductive layer 4 each have a thickness of 20 to 200 nm, a sheet resistance of 10 to 100 Ω/□, and a refractive index of 1.7 to 2.2, and are all made of a transparent conductive material. . The transparent conductive material Specifically, the material may be indium tin oxide (ITO), aluminum zinc oxide (AZO), indium zinc oxide (IZO), manganese zinc oxide (MZO), gallium-doped zinc oxide (GZO) or gallium-doped aluminum zinc oxide (GAZO). The material of the first transparent conductive layer 3 and the second transparent conductive layer 4 may be the same or different, and need not be limited.

It should be noted that when the thickness of the first transparent conductive layer 3 or the second transparent conductive layer 4 is less than 20 nm, the sheet resistance is greater than 100 Ω/□. When the thickness of the first transparent conductive layer 3 or the second transparent conductive layer 4 is greater than 200 nm, the sheet resistance may be less than 10 Ω/□, but the manufacturing cost will be increased. Therefore, the thickness of the first transparent conductive layer 3 and the second transparent conductive layer 4 is preferably 20 to 200 nm and the sheet resistance is preferably 10 to 100 Ω/□.

In addition, the refractive index of the first transparent conductive layer 3 and the second transparent conductive layer 4 is related to the formation temperature thereof, and the higher the formation temperature, the lower the refractive index.

When the transparent plate 1 is made of a high temperature resistant plate such as a glass plate or a sapphire plate, the first transparent conductive layer 3 and the second transparent conductive layer 4 can be formed at a relatively high temperature (about 250 to 400 ° C). And the refractive index produced is closer to 1.7. On the other hand, when the light-transmitting sheet 1 is made of a plastic sheet which is less resistant to high temperature such as polycarbonate (PC), polymethyl methacrylate (PMMA) or polyethylene terephthalate (PET), The first transparent conductive layer 3 and the second transparent conductive layer 4 are formed at a relatively low temperature (about 25 to 150 ° C), and the refractive index obtained is closer to 2.2.

The first transparent conductive layer 3 further includes two first body portions 301 spaced apart from each other, and a first connecting portion 302 connected between the first body portions 301. The first body portion 301 and the first connecting portion 302 Arranged along a first direction X. The second transparent conductive layer 4 further includes two second body portions 401 spaced apart from each other, and a second connecting portion 402 connected between the second body portions 401. The second body portion 401 and the second connecting portion 402 are arranged along a second direction Y. The first body portion 301 and the second body portions 401 do not overlap; the first connecting portion 302 overlaps with the second connecting portion 402 to form a capacitor, thereby providing a capacitive touch panel function.

It should be noted that, in FIG. 2, the first direction X and the second direction Y have an angle between the first direction X and the second direction Y, which may be an acute angle, a right angle or an obtuse angle. In this embodiment, FIG. 2 is taken as an example, but is not intended to limit the present. The scope of the invention. The patterns of the first main body portion 301 and the second main body portions 401 may be rectangular, square, diamond, triangular, polygonal, and irregular. In this embodiment, FIG. 2 is illustrated by a diamond, but is not intended to limit the present invention. The scope.

The first adjusting unit 5 of the first embodiment is disposed on the first front surface 31 of the first transparent conductive layer 3, and the first adjusting unit 5 includes two first adjusting films 51 and 52 arranged in a stack, wherein a first adjustment is performed. The film 51 has a refractive index of 2 to 2.4 and a thickness of 1 to 10 nm, and the other first adjustment film 52 has a refractive index of 1.4 to 1.6 and a thickness of 1 to 50 nm. The first adjustment films 51 and 52 are staggered in accordance with the refractive index from the direction adjacent to the light-transmissive sheet 1, and the light-transmitting sheet 1 is the first adjustment film 51.

The second adjusting unit 6 of the embodiment is disposed on the second front surface 41 of the second transparent conductive layer 4, and the second adjusting unit 6 includes two second adjusting films 61 and 62 arranged in a stack, wherein a second adjustment The refractive index of the film 61 is 2 to 2.4 and the thickness is 1 to 10 nm, and the other second adjustment film 62 is folded. The incident rate is 1.4 to 1.6 and the thickness is 1 to 50 nm. The second adjustment films 61, 62 are staggered in accordance with the refractive index from the direction adjacent to the light-transmissive sheet 1, and the light-transmitting sheet 1 is the second adjustment film 61.

In practice, the materials of the first adjustment film 51 and the second adjustment film 61 having a refractive index of 2 to 2.4 may specifically be niobium oxide (Nb ₂ O _X ), titanium oxide (TiO _X ), or tantalum nitride (SiN _X ). Or zirconia (ZrO _X ). The material of the first adjustment film 52 and the second adjustment film 62 having a refractive index of 1.4 to 1.6 may specifically be cerium oxide (SiO _X ) or magnesium fluoride (MgF ₂ ).

Referring to FIG. 3, a second embodiment of the low color difference touch substrate of the present invention is substantially the same as the first embodiment of FIG. 1. The difference between the two is that in the second embodiment of FIG. 3, the second adjustment The unit 6 is disposed on the second back surface 42 of the second transparent conductive layer 4, and the second adjustment films 61, 62 are staggered according to the low refractive index from the direction adjacent to the transparent transparent sheet 1, and are closest to the The light-transmitting sheet 1 is the second adjustment film 62.

Referring to FIG. 4, a third embodiment of the low color difference touch substrate of the present invention is substantially the same as the first embodiment of FIG. 1. The difference between the two is that in the third embodiment of FIG. 4, the first adjustment The unit 5 is disposed on the first back surface 32 of the first transparent conductive layer 3, and the first adjustment films 51, 52 are staggered according to the low refractive index in the direction of being adjacent to and away from the transparent sheet 1, and are closest to the The light-transmitting sheet 1 is the first adjustment film 52.

Referring to FIG. 5, a fourth embodiment of the low color difference touch substrate of the present invention is substantially the same as the third embodiment of FIG. 4. The difference between the two is that in the fourth embodiment of FIG. 5, the second adjustment The unit 6 is disposed on the second back surface 42 of the second transparent conductive layer 4, and the second adjustment films 61, 62 It is staggered according to the low refractive index from the direction of the light-transmitting sheet 1 adjacent to and away from the light-transmitting sheet 1, and the light-transmitting sheet 1 is the second adjustment film 62.

It should be noted that, in FIGS. 1 and 3 to 5, the number of the first adjustment films 51 and 52 and the second adjustment films 61 and 62 are respectively one, but in implementation, the first adjustments are The number of the films 51, 52 and the second adjustment films 61, 62 may be two or more, respectively, and is not limited to the example of the embodiment.

The present invention will be further described in the following Experimental Examples 1 to 12 and Comparative Examples 1 to 9, but it should be understood that the Experimental Examples 1 to 12 are for illustrative purposes only and should not be construed as being embodied in the present invention. limit.

In the test articles of Experimental Examples 1 to 12 and Comparative Examples 1 to 9, the material of the light-transmitting sheet 1 was glass. The material of the insulating layer 2 is an acetate-based photoresist type insulating material. The first transparent conductive layer 3 and the second transparent conductive layer 4 have a refractive index of 1.89 and a thickness of 100 nm, and the material is indium tin oxide. The first adjustment film 51 and the second adjustment film 61 having a higher refractive index have a refractive index of 2.4, and the materials are all yttrium oxide; the refractive indices of the first adjustment film 52 and the second adjustment film 62 having a lower refractive index are both 1.46, the materials are all cerium oxide.

In the test articles of Experimental Examples 1 to 12 and Comparative Examples 1 to 9, the differences from each other were summarized in Table 1 below.

Referring to Table 1, the test article of Comparative Example 1 does not have the first adjustment unit 5 and the second adjustment unit 6, that is, Comparative Example 1 is a structure of a conventional touch substrate.

Referring to Table 1 and FIG. 1, Experimental Examples 1 to 3 and Comparative Examples 2 and 3 are used to illustrate that the first adjustment unit 5 is disposed on the first front surface 31 and the second adjustment. The whole unit 6 is disposed on the second front surface 41.

Experimental Example 1 is the aspect shown in Fig. 1. Experimental Example 1 has two first adjustment films 51, 52 and two second adjustment films 61, 62. Experimental Example 2 has three first adjustment films 51, 52 and three second adjustment films 61, 62. Experimental Example 3 has four first adjustment films 51, 52 and four second adjustment films 61, 62. In the experimental examples 1 to 3, the first adjustment films 51 and 52 are staggered in accordance with the refractive index from the direction adjacent to the light-transmitting sheet 1, and the light-transmitting sheet 1 is the first adjustment film 51. . The second adjustment films 61, 62 are staggered in accordance with the refractive index from the direction adjacent to the light-transmissive sheet 1, and the light-transmitting sheet 1 is the second adjustment film 61.

Comparative Example 2 and 3 differed from Experimental Example 1 in that the arrangement order of the first adjustment films 51 and 52 of Comparative Example 2 was opposite to that of Experimental Example 1; the arrangement order of the second adjustment films 61 and 62 of Comparative Example 3 was opposite to that of the experiment. example 1.

Referring to Table 1 and FIG. 3 , Experimental Examples 4 to 6 and Comparative Examples 4 and 5 are used to illustrate the effect that the first adjustment unit 5 is disposed on the first front surface 31 and the second adjustment unit 6 on the second back surface 42 . .

Experimental Example 4 is the aspect shown in FIG. 3. Experimental Example 4 has two first adjustment films 51, 52 and two second adjustment films 61, 62. Experimental Example 5 has three first adjustment films 51, 52 and three second adjustment films 61, 62. Experimental Example 6 has four first adjustment films 51, 52 and four second adjustment films 61, 62. In the experimental examples 4 to 6, the first adjustment films 51 and 52 are staggered in accordance with the refractive index from the direction adjacent to the light-transmitting sheet 1, and the light-transmitting sheet 1 is the first adjustment film 51. . The second adjustment films 61, 62 are low in refractive index from adjacent to the direction away from the transparent sheet 1. Staggered, and the light transmissive sheet 1 is the closest to the second adjustment film 62.

Comparative Examples 4 and 5 differed from Experimental Example 4 in that the order of arrangement of the first adjustment films 51 and 52 of Comparative Example 4 was opposite to that of Experimental Example 4; the arrangement order of the second adjustment films 61 and 62 of Comparative Example 5 was opposite to that of the experiment. Example 4.

Referring to Table 1 and FIG. 4, Experimental Examples 7-9 and Comparative Examples 6 and 7 are used to illustrate the effect that the first adjusting unit 5 is disposed on the first back surface 32 and the second adjusting unit 6 is disposed on the second front surface 41. .

Experimental Example 7 is the aspect shown in FIG. 4. Experimental Example 7 has two first adjustment films 51, 52 and two second adjustment films 61, 62. Experimental Example 8 has three first adjustment films 51, 52 and three second adjustment films 61, 62. Experimental Example 9 has four first adjustment films 51, 52 and four second adjustment films 61, 62. In the experimental examples 7 to 9, the first adjustment films 51 and 52 are staggered in accordance with the low refractive index from the direction adjacent to the light-transmitting sheet 1, and the light-adjusting sheet 1 is the first adjustment film. 52. The second adjustment films 61, 62 are staggered in accordance with the refractive index from the direction adjacent to the light-transmissive sheet 1, and the light-transmitting sheet 1 is the second adjustment film 61.

Comparative Examples 6 and 7 differed from Experimental Example 7 in that the arrangement order of the first adjustment films 51 and 52 of Comparative Example 6 was opposite to that of Experimental Example 7; the arrangement order of the second adjustment films 61 and 62 of Comparative Example 7 was opposite to that of the experiment. Example 7.

Referring to Table 1 and FIG. 5, Experimental Examples 10 to 12 and Comparative Examples 8 and 9 are used to illustrate the effect that the first adjustment unit 5 is disposed on the first back surface 32 and the second adjustment unit 6 is disposed on the second back surface 42. .

Experimental Example 10 is the aspect shown in FIG. 5. Experimental Example 10 has two first adjustment films 51, 52 and two second adjustment films 61, 62. experiment Example 11 has three first adjustment films 51, 52 and three second adjustment films 61, 62. Experimental Example 12 has four first adjustment films 51, 52 and four second adjustment films 61, 62. Wherein, in the experimental examples 10 to 12, the first adjustment films 51, 52 are staggered according to the low refractive index from the direction of being adjacent to the light-transmitting sheet 1, and the first adjacent to the transparent sheet 1 is the first The film 52 is adjusted. The second adjustment films 61, 62 are staggered according to a low refractive index from the direction of being adjacent to the light-transmissive sheet 1, and the light-transmitting sheet 1 is the second adjustment film 62.

Comparative Examples 8 and 9 differed from Experimental Example 10 in that the order of arrangement of the first adjustment films 51 and 52 of Comparative Example 8 was opposite to that of Experimental Example 10; the arrangement order of the second adjustment films 61 and 62 of Comparative Example 9 was opposite to that of the experiment. Example 10.

The color difference properties of the experimental examples 1 to 12 and the comparative examples 1 to 9 were measured, and the measurement results were summarized in Table 2.

The measurement method is to calculate the color difference value (ΔEab*) using the standard set by CIE1976. Specifically, the light of the 2 degree angle is incident on the D65 light source, and the darkness value L* and the red-greenness coordinate value a* of the CIE1976 chromaticity coordinate are measured at A, B, C, and D shown in FIG. With the yellow-blueness coordinate value b*, finally, the measured L, a*, and b* of the A, B, C, and D are calculated for each other, that is, △ L*, Δa* and Δb*, and the square roots after summing them are the color difference value ΔEab*. (The formula is as follows:)

Referring to Figures 2 and 6, Figure 6 is a schematic view of an appearance of a low color difference touch substrate. A in FIG. 6 is a region of the low color difference touch substrate in which the first body portion 301 of the first transparent conductive layer 3 is overlapped; and B is a portion of the low color difference touch substrate in which the second transparent conductive layer is overlapped. 4 is a region of the second body portion 401; where C is the region of the low color difference touch substrate in which the first connection portion 302 and the second connection portion 402 are overlapped; and D is in the low color difference touch substrate. The first transparent conductive layers 3 do not overlap or overlap the regions of the second transparent conductive layers 4.

For the measurement, for the test cases 1 to 12 and the comparative examples 1 to 9, A, B, C and D, the test examples 1 to 12 and the comparative examples 1 to 9 A were compared with B. The color difference values are listed in Table 2 (AB) In the field, the color difference value of A is relative to C, A is relative to D, B is relative to C, B is relative to D, and C is relative to D. 2 (AC), (AD), (BC), (BD) and (CD) fields.

Referring to Table 2, Comparative Example 1 is a structure of a conventional touch panel, and shows that the conventional method of reducing the thickness of the first transparent conductive layer 3 and the second transparent conductive layer 4 reduces the resistance, and the chromatic aberration phenomenon is actually improved. The color difference ΔEab* of the region is up to 10.64, and the appearance quality of the product is higher. difference.

In the test articles of Comparative Examples 2 to 9, the first adjusting unit 5 is disposed on the first front surface 31 or the first back surface 32 of the first transparent conductive layer 3, and the second conductive layer 4 is disposed in the second transparent conductive layer 4. The second adjustment unit 6 is disposed on the front surface 41 or the second rear surface 42. However, since the first adjustment film 51, 52 or the second adjustment film 61, 62 is not arranged in the order as defined in the present invention, the purpose of reducing the chromatic aberration cannot be achieved. The color difference ΔEab* of the area is still greater than 5, and the appearance quality of the product is not good.

It can be seen from the experimental examples 1 to 12 that the color difference values ΔEab* of the experimental examples 1 to 12 are all lower than 1, indicating that the first adjustment films 51 and 52 and the second adjustment films 61 and 62 are arranged in the order as defined in the present invention. Compared with any two parts of the touch substrate, the color difference can be greatly reduced, thereby effectively improving the appearance quality of the product.

However, the above is only the embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and the patent specification of the present invention are still It is within the scope of the patent of the present invention.

1‧‧‧Transparent sheet

2‧‧‧Insulation

3‧‧‧First transparent conductive layer

31‧‧‧ first positive

32‧‧‧ first back

4‧‧‧Second transparent conductive layer

41‧‧‧Second positive

42‧‧‧ second back

5‧‧‧First adjustment unit

51, 52‧‧‧ first adjustment film

6‧‧‧Second adjustment unit

61, 62‧‧‧ second adjustment film

Claims (8)

A low chromaticity touch substrate comprises: a light transmissive plate; an insulating layer spaced apart from the transparent plate; a first transparent conductive layer disposed on a side of the insulating layer facing the transparent plate and comprising a face a first front surface of the light transmissive sheet, and a first back surface facing away from the light transmissive sheet, the first transparent conductive layer has a thickness of 20 to 200 nm; and a second transparent conductive layer is disposed on the insulating layer facing away from the a side of the light transmissive sheet and comprising a second front surface facing the light transmissive sheet, and a second back surface facing away from the light transmissive sheet, the second transparent conductive layer having a thickness of 20 to 200 nm; a first adjustment The unit is disposed on the first front surface of the first transparent conductive layer, and includes at least two first adjustment films disposed in a stack, wherein a first adjustment film has a refractive index of 2 to 2.4, and the other first adjustment film The refractive index is 1.4~1.6; the first adjustment film is staggered according to the refractive index from the direction of the adjacent to the transparent plate, and the refractive index of the first adjustment film closest to the transparent plate is 2~2.4; And a second tone The unit is disposed on the second front surface of the second transparent conductive layer, and includes at least two second adjustment films disposed in a stack, wherein a second adjustment film has a refractive index of 2 to 2.4, and the other second adjustment film The refractive index is from 1.4 to 1.6; the second adjustment film is staggered according to the refractive index from the direction of being adjacent to the transparent plate, and the second adjustment film closest to the transparent plate has a refractive index of 2 to 2.4. The low chromaticity touch substrate of claim 1, wherein the first transparent conductive layer has a refractive index of 1.7 to 2.2; and the second transparent conductive layer has a refractive index of 1.7 to 2.2. A low chromaticity touch substrate comprises: a light transmissive plate; an insulating layer spaced apart from the transparent plate; a first transparent conductive layer disposed on a side of the insulating layer facing the transparent plate and comprising a face a first front surface of the light transmissive sheet, and a first back surface facing away from the light transmissive sheet, the first transparent conductive layer has a thickness of 20 to 200 nm; and a second transparent conductive layer is disposed on the insulating layer facing away from the a side of the light transmissive sheet and comprising a second front surface facing the light transmissive sheet, and a second back surface facing away from the light transmissive sheet, the second transparent conductive layer having a thickness of 20 to 200 nm; a first adjustment The unit is disposed on the first front surface of the first transparent conductive layer, and includes at least two first adjustment films disposed in a stack, wherein a first adjustment film has a refractive index of 2 to 2.4, and the other first adjustment film The refractive index is 1.4~1.6; the first adjustment film is staggered according to the refractive index from the direction of the adjacent to the transparent plate, and the refractive index of the first adjustment film closest to the transparent plate is 2~2.4; And a second tone The unit is disposed on the second back surface of the second transparent conductive layer, and includes at least two second adjustment films disposed in a stack, wherein a second adjustment film has a refractive index of 2 to 2.4, and the other second adjustment film The refractive index is 1.4~1.6; the second adjustment film is from adjacent to far The direction of the transparent plate is staggered according to the low refractive index, and the refractive index of the second adjustment film closest to the transparent plate is 1.4 to 1.6. The low chromaticity touch substrate of claim 3, wherein the first transparent conductive layer has a refractive index of 1.7 to 2.2; and the second transparent conductive layer has a refractive index of 1.7 to 2.2. A low chromaticity touch substrate comprises: a light transmissive plate; an insulating layer spaced apart from the transparent plate; a first transparent conductive layer disposed on a side of the insulating layer facing the transparent plate and comprising a face a first front surface of the light transmissive sheet, and a first back surface facing away from the light transmissive sheet, the first transparent conductive layer has a thickness of 20 to 200 nm; and a second transparent conductive layer is disposed on the insulating layer facing away from the a side of the light transmissive sheet and comprising a second front surface facing the light transmissive sheet, and a second back surface facing away from the light transmissive sheet, the second transparent conductive layer having a thickness of 20 to 200 nm; a first adjustment The unit is disposed on the first back surface of the first transparent conductive layer, and includes at least two first adjustment films disposed in a stack, wherein a first adjustment film has a refractive index of 2 to 2.4, and the other first adjustment film The refractive index is 1.4~1.6; the first adjustment film is staggered according to the low refractive index from the direction of being adjacent to the transparent plate, and the refractive index of the first adjustment film closest to the transparent plate is 1.4~1.6 And a second The entire unit, disposed on the second face of the second transparent conductive layer, and a second adjustment film comprises at least two stacked, which One of the second adjustment films has a refractive index of 2 to 2.4, and the other second adjustment film has a refractive index of 1.4 to 1.6; the second adjustment films are staggered according to the refractive index from adjacent to the direction away from the transparent plate. And the second adjustment film closest to the light-transmitting sheet has a refractive index of 2 to 2.4. The low chromaticity touch substrate of claim 5, wherein the first transparent conductive layer has a refractive index of 1.7 to 2.2; and the second transparent conductive layer has a refractive index of 1.7 to 2.2. A low chromaticity touch substrate comprises: a light transmissive plate; an insulating layer spaced apart from the transparent plate; a first transparent conductive layer disposed on a side of the insulating layer facing the transparent plate and comprising a face a first front surface of the light transmissive sheet, and a first back surface facing away from the light transmissive sheet, the first transparent conductive layer has a thickness of 20 to 200 nm; and a second transparent conductive layer is disposed on the insulating layer facing away from the a side of the light transmissive sheet and comprising a second front surface facing the light transmissive sheet, and a second back surface facing away from the light transmissive sheet, the second transparent conductive layer having a thickness of 20 to 200 nm; a first adjustment The unit is disposed on the first back surface of the first transparent conductive layer, and includes at least two first adjustment films disposed in a stack, wherein a first adjustment film has a refractive index of 2 to 2.4, and the other first adjustment film The refractive index is 1.4~1.6; the first adjustment film is staggered according to the low refractive index from the direction of being adjacent to the transparent plate, and the refractive index of the first adjustment film closest to the transparent plate is 1.4~1.6 ;and a second adjusting unit is disposed on the second back surface of the second transparent conductive layer, and includes at least two second adjusting films disposed in a stack, wherein a second adjusting film has a refractive index of 2 to 2.4, and the other The refractive index of the second adjustment film is 1.4 to 1.6; the second adjustment films are staggered according to the low refractive index of the adjacent to and away from the transparent plate, and the refractive index of the second adjustment film closest to the transparent plate It is 1.4~1.6. The low chromaticity touch substrate of claim 7, wherein the first transparent conductive layer has a refractive index of 1.7 to 2.2; and the second transparent conductive layer has a refractive index of 1.7 to 2.2.