OGS touch screen

Abstract

The utility model discloses an OGS touch screen which comprises a protective cover plate and an OGS sensor layer, the OGS sensor layer is arranged on the surface of one side of the protective cover plate, the OGS touch screen further comprises a flat layer and a color mixing layer, the flat layer is arranged on the surface of the side, back to the protective cover plate, of the OGS sensor layer, and the color mixing layer is arranged on the surface of the side, back to the protective cover plate, of the OGS sensor layer. The color matching layer is arranged on the surface of the side, back on to the OGS sensor layer, of the flat layer. The color matching layer of the OGS touch screen not only can form a visual effect similar to ceramic gloss, but also can play a role in protecting the OGS sensor layer.

Description

Technical Field

[0001] The utility model relates to a touch screen technology, in particular to an OGS touch screen. Background Art

[0002] OGS touch screen is a new type of touch screen technology, the full name is One Glass Solution, which means integrated glass solution. It is a technology that directly forms ITO conductive film and sensor on the glass cover. A piece of glass plays the dual role of glass cover and touch sensor at the same time. OGS touch screen adopts full bonding technology, which bonds the touch layer, sensor circuit and display glass together, making the touch screen more solid, more transparent, more resistant to pollution, and reducing thickness and weight.

[0003] The touch sensor is easily corroded by external moisture, so in the prior art, a silicon dioxide layer or a silicon nitride layer is often provided on the touch sensor to protect the touch sensor.

[0004] In addition, in order to make the product present a ceramic gloss, a color-adjusting layer is generally provided on the outer layer of the cover plate of the product. For example, the Chinese patent with patent number CN201721776012.9 discloses a cover plate that can present a preset gloss, including a substrate, a first color-adjusting layer and a second color-adjusting layer; the second color-adjusting layer is used to present a preset color, and the first color-adjusting layer is used to adjust the transmittance and reflectivity of each band of light after the incident light is incident on the cover plate, so that the cover plate presents a preset gloss, and the first color-adjusting layer is located on the side of the second color-adjusting layer facing the observation. By adjusting the first color-adjusting layer, the cover plate can make the cover plate present the appearance gloss of ceramics. Therefore, the cover plate of the utility model can achieve the appearance gloss of ceramics, and compared with the ceramic cover plate, its manufacturing process is simple and the production cost is low.

[0005] However, the first color adjustment layer of the above patent contains a silicon oxide film layer, which itself has a good protective effect, but is arranged on the outer layer of the cover plate and does not play a protective role for the touch sensor located on the inner layer of the cover plate. Utility Model Content

[0006] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides an OGS touch screen, whose toning layer can not only form a visual effect similar to ceramic gloss, but also play a protective role for the OGS sensor layer.

[0007] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0008] An OGS touch screen comprises a protective cover and an OGS sensor layer, wherein the OGS sensor layer is arranged on one side surface of the protective cover, and the OGS touch screen further comprises a flat layer and a color adjustment layer, wherein the flat layer is arranged on one side surface of the OGS sensor layer facing away from the protective cover, and the color adjustment layer is arranged on one side surface of the flat layer facing away from the OGS sensor layer.

[0009] Furthermore, the color adjustment layer is formed by stacking at least two optical medium material layers, and different optical medium material layers have different refractive indices.

[0010] Furthermore, the color adjustment layer is formed by alternately stacking a plurality of silicon oxide film layers and a plurality of silicon nitride film layers.

[0011] Furthermore, the color adjustment layer is formed by stacking a first silicon nitride film layer, a first silicon oxide film layer, a second silicon nitride film layer, a second silicon oxide film layer, a third silicon nitride film layer, and a third silicon oxide film layer in sequence.

[0012] Furthermore, the thicknesses of the first silicon nitride film layer, the first silicon oxide film layer, the second silicon nitride film layer, the second silicon oxide film layer, the third silicon nitride film layer, and the third silicon oxide film layer are 40-80nm, 10-30nm, 20-60nm, 30-50nm, 10-20nm, 30-80nm, and 40-100nm, respectively.

[0013] Furthermore, the color adjustment layer is formed by stacking a first silicon oxide film layer, a titanium oxide film layer, and a second silicon oxide film layer in sequence.

[0014] Furthermore, the thicknesses of the first silicon oxide film layer, the titanium oxide film layer, and the second silicon oxide film layer are 50-150 nm, 80-120 nm, and 50-150 nm, respectively.

[0015] Furthermore, the OGS touch screen further includes an anti-fingerprint layer, and the anti-fingerprint layer is disposed on a surface of the protection cover plate that is away from the OGS sensor layer.

[0016] Furthermore, the OGS touch screen further includes an anti-ultraviolet layer, and the anti-ultraviolet layer is arranged between the protection cover plate and the anti-fingerprint layer.

[0017] Furthermore, the anti-ultraviolet layer is an anti-ultraviolet PET film.

[0018] The utility model has the following beneficial effects: the utility model sequentially arranges the flat layer and the color adjustment layer on the back side of the OGS sensor layer, the color adjustment layer is used to adjust the transmittance and reflectivity of each band of light after the incident light sequentially passes through the protective cover plate and the OGS sensor layer, the adjusted reflected light sequentially passes through the OGS touch screen and the protective cover plate to make the OGS touch screen present a preset gloss, specifically, the OGS touch screen can present a visual effect similar to ceramic gloss through the adjustment of the color adjustment layer; moreover, the color adjustment layer covers the OGS sensor layer, can block external water vapor, avoid external water vapor from corroding the OGS sensor layer, and play a protective role at the same time; the flat layer is used to make the surface of the OGS sensor layer flat, to avoid the uneven film thickness of the color adjustment layer due to the uneven surface of the OGS sensor layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the stacking structure of the OGS touch screen in the first embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the stacking structure of the OGS touch screen in the second embodiment provided by the utility model.

[0021] Figure 3 This is a schematic diagram of the stacking structure of the OGS touch screen in the third embodiment provided by the utility model.

[0022] Figure 4 This is a schematic diagram of the stacking structure of the OGS touch screen in the fourth embodiment provided by the utility model.

[0023] Figure 5 This is a schematic diagram of the stacking structure of the OGS touch screen in the fifth embodiment provided by the utility model.

[0024] Figure 6 The present invention provides a schematic diagram of the planar structure of an OGS sensor layer in an OGS touch screen. DETAILED DESCRIPTION

[0025] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] like Figure 1 As shown, an OGS touch screen includes a protective cover plate 100 and an OGS sensor layer 200, wherein the OGS sensor layer 200 is disposed on one side surface of the protective cover plate 100, and the OGS touch screen further includes a flat layer 300 and a color adjustment layer 400, wherein the flat layer 300 is disposed on one side surface of the OGS sensor layer 200 that is away from the protective cover plate 100, and the color adjustment layer 400 is disposed on one side surface of the flat layer 300 that is away from the OGS sensor layer 200.

[0031] The utility model sequentially arranges the flat layer 300 and the coloring layer 400 on the surface of the OGS sensor layer 200 on the side facing away from the protective cover 100. The coloring layer 400 is used to adjust the transmittance and reflectivity of each band of light after the incident light sequentially passes through the protective cover 100 and the OGS sensor layer 200. The adjusted reflected light sequentially passes through the OGS touch screen and the protective cover 100 to make the OGS touch screen present a preset gloss. Specifically, the OGS touch screen can present a visual effect similar to ceramic gloss through the adjustment of the coloring layer 400. Moreover, the coloring layer 400 covers the OGS sensor layer 200, can block external water vapor, prevent external water vapor from corroding the OGS sensor layer 200, and play a protective role at the same time. The flat layer 300 is used to make the surface of the OGS sensor layer 200 flat, to prevent the coloring layer 400 from having uneven film thickness due to the uneven surface of the OGS sensor layer 200.

[0032] The flat layer 300 may be, but is not limited to, insulating glue, such as epoxy resin, which is in liquid state before being cured, and is covered on the surface of the OGS touch screen by dispensing or dripping, and naturally flattens the surface of the OGS sensor layer 200 due to its own fluidity, and is finally cured.

[0033] like Figure 6 As shown, the OGS sensor layer 200 includes a plurality of touch sensors 210 and a plurality of metal traces 220. The touch sensors 210 are arranged in the display area of ​​the protective cover 100, and the metal traces 220 are arranged in the peripheral area of ​​the protective cover 100. The peripheral area of ​​the protective cover 100 surrounds the display area thereof. One end of each metal trace 220 is connected to the corresponding touch sensor 210, and the other end extends to one side edge of the peripheral area.

[0034] The touch sensor 210 includes a first electrode 211, a second electrode 212, a bridge 213 and an insulating bridge 214, wherein the insulating bridge 214 is arranged on the bridge 213, and both ends of the bridge 213 along the first direction are exposed from the insulating bridge 214; the first electrode 211 is located outside the two sides of the bridge 213 along the first direction, and is electrically connected by overlapping with the two exposed ends of the bridge 213; the second electrode 212 is located outside the two sides of the bridge 213 along the second direction, and is electrically connected by routing on the insulating bridge 214; the first direction is perpendicular to the second direction.

[0035] As can be seen from the above, the OGS sensor layer 200 has different material film layers at different positions, so the surface of the side facing the color adjustment layer 400 is uneven. The flat layer 300 can make the surface of the OGS sensor layer 200 flat, thereby preventing the color adjustment layer 400 from having uneven film thickness due to the uneven surface of the OGS sensor layer 200.

[0036] In this embodiment, the overlapping body 213 may be made of, but not limited to, ITO or metal material, and the first electrode 211 and the second electrode 212 may be made of, but not limited to, transparent conductive material, preferably ITO, AZO or ZnO.

[0037] The color adjustment layer 400 is formed by stacking at least two optical medium material layers, and different optical medium material layers have different refractive indices.

[0038] Different optical medium material film layers in the color adjustment layer 400 may have different reflectivities for light of different wavelengths. Light of different wavelengths is reflected by sequentially stacked optical medium material film layers, and optical interference occurs between the reflected light of different wavelengths. The reflected light of some wavelengths is offset, and the reflected light of some wavelengths is enhanced. Therefore, by reasonably matching the optical medium material, the number of film layers, and the thickness of the film layers of the color adjustment layer 400, the color adjustment layer 400 may present a preset gloss.

[0039] Each optical medium material film layer can be formed by sequentially sputtering on the flat layer 300 by, but not limited to, magnetron sputtering.

[0040] Embodiment 2

[0041] As an optimization solution of the first embodiment, in this embodiment, if Figure 2 As shown, the color adjustment layer 400 is formed by alternately stacking a plurality of silicon oxide film layers and a plurality of silicon nitride film layers. Specifically, the color adjustment layer 400 is formed by sequentially stacking a first silicon nitride film layer 401, a first silicon oxide film layer 402, a second silicon nitride film layer 403, a second silicon oxide film layer 404, a third silicon nitride film layer 405, and a third silicon oxide film layer 406; the thicknesses of the first silicon nitride film layer 401, the first silicon oxide film layer 402, the second silicon nitride film layer 403, the second silicon oxide film layer 404, the third silicon nitride film layer 405, and the third silicon oxide film layer 406 are 40-80nm, 10-30nm, 20-60nm, 30-50nm, 10-20nm, 30-80nm, and 40-100nm, respectively.

[0042] The color adjustment layer 400 of the present invention is formed by alternately stacking a plurality of silicon oxide film layers and a plurality of silicon nitride film layers, and can adjust the transmittance and reflectivity of each band of light after the incident light passes through the protective cover plate 100 and the OGS sensor layer 200 in sequence, and finally makes the color adjustment layer 400 present a visual effect similar to ceramic gloss.

[0043] Embodiment 3

[0044] As another optimization solution of the first embodiment, in this embodiment, if Figure 3 As shown, the color adjustment layer 400 is formed by stacking a first silicon oxide film layer 402, a titanium oxide film layer 407, and a second silicon oxide film layer 404 in sequence. The thicknesses of the first silicon oxide film layer 402, the titanium oxide film layer 407, and the second silicon oxide film layer 404 are 50-150nm, 80-120nm, and 50-150nm, respectively.

[0045] The color adjustment layer 400 of the present invention is formed by alternately stacking a plurality of silicon oxide film layers and a plurality of silicon nitride film layers, and can adjust the transmittance and reflectivity of each band of light after the incident light passes through the protective cover plate 100 and the OGS sensor layer 200 in sequence, and finally makes the color adjustment layer 400 present a visual effect similar to ceramic gloss.

[0046] Compared with the second embodiment, the present embodiment uses fewer membrane layers, which is beneficial to improving efficiency and reducing costs.

[0047] Embodiment 4

[0048] As an optimization solution of Embodiments 1 to 3, in this embodiment, Figure 4 As shown, the OGS touch screen further includes an anti-fingerprint layer 500 , and the anti-fingerprint layer 500 is disposed on a surface of the protection cover 100 that is away from the OGS sensor layer 200 .

[0049] The anti-fingerprint layer 500 is used to reduce the surface energy of the surface of the protective cover 100 to prevent the surface of the protective cover 100 from being contaminated by fingerprints and water droplets, etc., and is mainly divided into two types: a frosted anti-fingerprint film and a high-transmittance anti-fingerprint film; wherein, the frosted anti-fingerprint film is a frosted particle layer applied on the surface of a base film to achieve an anti-fingerprint effect, and the high-transmittance anti-fingerprint film achieves an anti-fingerprint effect through a fine space architecture technology inside the base film.

[0050] Embodiment 5

[0051] As an optimization solution of the fourth embodiment, in this embodiment, if Figure 5 As shown, the OGS touch screen further includes an anti-ultraviolet layer 600 , and the anti-ultraviolet layer 600 is disposed between the protection cover 100 and the anti-fingerprint layer 500 .

[0052] The anti-ultraviolet layer 600 is used to reflect, block or absorb ultraviolet light in the incident light to prevent the OGS sensor layer 200 from being aged rapidly due to long-term exposure to ultraviolet light.

[0053] The anti-ultraviolet layer 600 is an anti-ultraviolet PET film, which is prepared by mixing an ultraviolet absorber and / or an ultraviolet reflector into a PET substrate and stirring the mixture evenly, wherein the mass proportion of the ultraviolet absorber and / or the ultraviolet reflector in the mixture is 10-15%, and then the mixture is cured into a film to form the anti-ultraviolet PET film.

[0054] The ultraviolet light absorber can strongly and selectively absorb high-energy ultraviolet light, and convert the energy of the absorbed ultraviolet light into harmless heat energy or harmless low-radiation energy through photophysical processes and / or photochemical reactions, thereby protecting against ultraviolet light, and the structure of the ultraviolet light absorber itself will not change. The ultraviolet light reflector utilizes the inorganic substance to have a greater reflection, refraction or scattering effect on the incident ultraviolet light, thereby reducing the transmittance of the ultraviolet light, thereby achieving the purpose of protecting against ultraviolet light.

[0055] The utility model does not specifically limit the ultraviolet absorber and the ultraviolet reflector, and conventional materials in the prior art can be used, which are well known to those skilled in the art.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An OGS touch screen, comprising a protective cover and an OGS sensor layer, wherein the OGS sensor layer is arranged on one side surface of the protective cover, characterized in that: The OGS touch screen further comprises a flat layer and a color adjustment layer. The flat layer is arranged on a surface of the OGS sensor layer facing away from the protective cover plate, and the color adjustment layer is arranged on a surface of the flat layer facing away from the OGS sensor layer.

2. The OGS touch screen according to claim 1, characterized in that: The color adjustment layer is formed by stacking at least two optical medium material film layers, and different optical medium material film layers have different refractive indices.

3. The OGS touch screen according to claim 2, characterized in that: The color adjustment layer is formed by alternately stacking a plurality of silicon oxide film layers and a plurality of silicon nitride film layers.

4. The OGS touch screen according to claim 3, characterized in that: The color adjustment layer is formed by sequentially stacking a first silicon nitride film layer, a first silicon oxide film layer, a second silicon nitride film layer, a second silicon oxide film layer, a third silicon nitride film layer, and a third silicon oxide film layer.

5. The OGS touch screen according to claim 4, characterized in that: The thicknesses of the first silicon nitride film layer, the first silicon oxide film layer, the second silicon nitride film layer, the second silicon oxide film layer, the third silicon nitride film layer, and the third silicon oxide film layer are 40-80nm, 10-30nm, 20-60nm, 30-50nm, 10-20nm, 30-80nm, and 40-100nm, respectively.

6. The OGS touch screen according to claim 2, characterized in that: The color adjustment layer is formed by sequentially stacking a first silicon oxide film layer, a titanium oxide film layer, and a second silicon oxide film layer.

7. The OGS touch screen according to claim 6, characterized in that: The thicknesses of the first silicon oxide film layer, the titanium oxide film layer, and the second silicon oxide film layer are 50-150 nm, 80-120 nm, and 50-150 nm, respectively.

8. The OGS touch screen according to claim 1, characterized in that: The OGS touch screen further includes an anti-fingerprint layer, which is disposed on a surface of the protection cover plate facing away from the OGS sensor layer.

9. The OGS touch screen according to claim 8, characterized in that: The OGS touch screen further includes an anti-ultraviolet layer, and the anti-ultraviolet layer is arranged between the protection cover plate and the anti-fingerprint layer.

10. The OGS touch screen according to claim 9, characterized in that: The anti-ultraviolet layer is an anti-ultraviolet PET film.

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