Anti-ultraviolet cover plate and display equipment

Abstract

The utility model discloses an anti-ultraviolet cover plate which comprises an outer-layer glass substrate and an inner-layer glass substrate, the ultraviolet shielding layer is arranged between the outer-layer glass substrate and the inner-layer glass substrate; the glass connecting layer is arranged between the outer-layer glass substrate and the inner-layer glass substrate and surrounds the periphery of the ultraviolet shielding layer; the outer-layer glass substrate, the inner-layer glass substrate and the glass connecting layer are made of glass of the same type, and the glass connecting layer is respectively welded and fixed with the outer-layer glass substrate and the inner-layer glass substrate; and the IM vanishing film layer is arranged on the surface of one side, opposite to the inner-layer glass substrate, of the outer-layer glass substrate and covers the ultraviolet shielding layer and the glass connecting layer at the same time. According to the anti-ultraviolet cover plate, the refractive index difference between the ultraviolet shielding layer and the glass connecting layer can be reduced. The utility model further discloses a display device which comprises the uvioresistant cover plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cover plate technology especially relates to an ultraviolet resistant cover plate and display equipment. BACKGROUND

[0002] The ultraviolet resistant cover plate is a kind of protective cover plate, it can provide physical protection function for display equipment, and can also block ultraviolet, to avoid the electronic device inside display equipment from aging due to long-term irradiation of ultraviolet.

[0003] In order to avoid that the ultraviolet shielding layer on the ultraviolet resistant cover plate is scratched by foreign matter, and the problems such as erosion and falling off due to long-term contact with water vapor in the environment, the Chinese patent with application number CN202422784766.5 discloses a protective cover plate capable of shielding ultraviolet, comprising: a first glass substrate and a second glass substrate;Ultraviolet shielding layer, set on the side surface of the first glass substrate towards the second glass substrate;Glass connecting layer, set on the side surface of the first glass substrate towards the second glass substrate, and around the periphery of the ultraviolet shielding layer;The first glass substrate, second glass substrate and glass connecting layer are the same type of glass, and the glass connecting layer is respectively fused and fixed with the first glass substrate and the second glass substrate.This patent clamps the ultraviolet shielding layer between the first glass substrate and the second glass substrate, and sets the glass connecting layer respectively fused and fixed with the first glass substrate and the second glass substrate on the periphery of the ultraviolet shielding layer, to seal the ultraviolet shielding layer between the first glass substrate and the second glass substrate, so that the ultraviolet shielding layer does not contact with the outside world, thereby avoiding that the ultraviolet shielding layer is scratched by foreign matter or eroded by water vapor, etc.

[0004] However, the ultraviolet shielding layer and the glass connecting layer are different in material, and the reflectivity of light is different between the two, which leads to that there is a boundary between the two that can be seen by naked eye in the protective cover plate under outdoor strong light environment, affecting the visual effect. UTILITY MODEL CONTENTS

[0005] In order to solve the above-mentioned deficiencies of prior art, the utility model provides an ultraviolet resistant cover plate, which can reduce the refractive index difference between the ultraviolet shielding layer and the glass connecting layer.

[0006] The utility model also provides a display equipment comprising the above-mentioned ultraviolet resistant cover plate.

[0007] The technical problems to be solved by the utility model are solved by the following technical solutions:

[0008] An ultraviolet resistant cover plate, comprising:

[0009] Outer glass substrate and inner glass substrate;

[0010] an ultraviolet shielding layer disposed between the outer glass substrate and the inner glass substrate;

[0011] a glass connecting layer disposed between the outer glass substrate and the inner glass substrate and surrounding the periphery of the ultraviolet shielding layer;

[0012] the outer glass substrate, the inner glass substrate and the glass connecting layer are the same type of glass, and the glass connecting layer is fused and fixed with the outer glass substrate and the inner glass substrate, respectively; and

[0013] an IM shadowing film layer disposed on the side surface of the outer glass substrate away from the inner glass substrate, and covering the ultraviolet shielding layer and the glass connecting layer at the same time.

[0014] Further, the thickness of the IM shadowing film layer is 70-80nm.

[0015] Further, the IM shadowing film layer includes a first refractive index matching film disposed on the side surface of the outer glass substrate away from the inner glass substrate, and a second refractive index matching film disposed on the side surface of the first refractive index matching film away from the outer glass substrate, the refractive index of the first refractive index matching film is greater than that of the second refractive index matching film, and the thickness of the second refractive index matching film is greater than that of the first refractive index matching film.

[0016] Further, the first refractive index matching film is a niobium pentoxide film layer, and the thickness thereof is 5-10nm.

[0017] Further, the second refractive index matching film is a silicon dioxide film layer, and the thickness thereof is 60-80nm.

[0018] Further, the thickness of the ultraviolet shielding layer and the glass connecting layer is the same, and the thickness is between 10-100nm.

[0019] Further, the ultraviolet shielding layer is a titanium dioxide layer, a zinc oxide layer, an aluminum oxide layer, a germanium oxide layer, a cerium oxide layer or a neodymium oxide layer.

[0020] Further, the inner glass substrate has a visible area and a peripheral area, the peripheral area surrounds the visible area; the ultraviolet shielding layer is located in the visible area, and the glass connecting layer is located in the peripheral area.

[0021] Further, the anti-ultraviolet cover plate further includes a light-shielding ink layer, the light-shielding ink layer is disposed on the side surface of the inner glass substrate away from the outer glass substrate, and is located in the peripheral area.

[0022] A display device comprises a display screen and the above-mentioned anti-ultraviolet cover plate, which is arranged on the display side of the display screen.

[0023] The anti-ultraviolet cover plate of the utility model has the advantages that the ultraviolet shielding layer is clamped between the outer glass substrate and the inner glass substrate, and the glass connecting layer is fixedly connected to the outer glass substrate and the inner glass substrate on the periphery of the ultraviolet shielding layer, so that the ultraviolet shielding layer is sealed between the outer glass substrate and the inner glass substrate and does not contact the outside world, thereby avoiding the ultraviolet shielding layer from being scratched by external objects or eroded by water vapor; in addition, the IM shadow elimination film layer is arranged on the outer surface of the outer glass substrate and covers the ultraviolet shielding layer and the glass connecting layer, the shadow elimination effect of the IM shadow elimination film layer is utilized to reduce the reflectivity difference between the ultraviolet shielding layer and the glass connecting layer, so that the ultraviolet shielding layer and the glass connecting layer do not have a visible boundary due to the refractive index difference. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The utility model provides the anti-ultraviolet cover plate's laminated structure schematic diagram.

[0025] Figure 2 The utility model provides the anti-ultraviolet cover plate in ultraviolet shielding layer and glass connecting layer's plane structure schematic diagram.

[0026] Figure 3 The utility model provides the anti-ultraviolet cover plate in IM shadow elimination film layer's laminated structure schematic diagram.

[0027] Figure 4 The utility model provides the anti-ultraviolet cover plate in inner glass substrate's plane structure schematic diagram.

[0028] Figure 5 The utility model provides the display device's laminated structure schematic diagram. DETAILED DESCRIPTION

[0029] The utility model will be explained in detail below in combination with the drawings and examples, the example of the example is shown in the drawings, wherein the same or similar signs indicate the same or similar elements or elements with the same or similar function throughout. The examples described below by referring to the drawings are exemplary and are intended to explain the utility model and cannot be understood as limiting the utility model.

[0030] In the description of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third" can be explicitly or implicitly included one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0032] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] Embodiment one

[0034] As shown in Figure 1 and 2 An ultraviolet resistant cover plate, comprising:

[0035] An outer glass substrate 1 and an inner glass substrate 2;

[0036] An ultraviolet shielding layer 3 is arranged between the outer glass substrate 1 and the inner glass substrate 2;

[0037] A glass connecting layer 4 is arranged between the outer glass substrate 1 and the inner glass substrate 2, and surrounds the periphery of the ultraviolet shielding layer 3;

[0038] The outer glass substrate 1, the inner glass substrate 2 and the glass connecting layer 4 are the same type of glass, and the glass connecting layer 4 is respectively fused and fixed with the outer glass substrate 1 and the inner glass substrate 2; and

[0039] An IM shadow-eliminating film layer 5 is arranged on the outer side surface of the outer glass substrate 1 opposite to the inner glass substrate 2, and covers the ultraviolet shielding layer 3 and the glass connecting layer 4.

[0040] The ultraviolet shielding layer 3 is clamped between the outer glass substrate 1 and the inner glass substrate 2, and the glass connecting layer 4 is arranged on the periphery of the ultraviolet shielding layer 3 and is fixedly connected with the outer glass substrate 1 and the inner glass substrate 2, so that the ultraviolet shielding layer 3 is sealed between the outer glass substrate 1 and the inner glass substrate 2, and the ultraviolet shielding layer 3 is not in contact with the outside, thereby avoiding the ultraviolet shielding layer 3 from being scratched or eroded by water vapor.

[0041] In the preparation, the ultraviolet shielding layer 3 and the glass connecting layer 4 are sequentially attached to the side surface of the inner glass substrate 2, then the outer glass substrate 1 is relatively covered on the side surface of the inner glass substrate 2 with the ultraviolet shielding layer 3 and the glass connecting layer 4, and finally the periphery of the outer glass substrate 1 and the inner glass substrate 2 is locally heated by a fusion mold, so that the periphery of the outer glass substrate 1 and the inner glass substrate 2 is fused with the glass connecting layer 4 by heat transmitted from the outer glass substrate 1 and the inner glass substrate 2 to the glass connecting layer 4.

[0042] The outer glass substrate 1, the inner glass substrate 2 and the glass connecting layer 4 are the same type of glass, so that the melting points of the three are the same or similar, thereby avoiding affecting the fusion efficiency and fusion success rate due to asynchronous melting.

[0043] In the embodiment, the outer glass substrate 1, the inner glass substrate 2 and the glass connecting layer 4 are silicate glass, borate glass, potassium calcium glass or quartz glass.

[0044] Most preferably, the outer glass substrate 1, the inner glass substrate 2 and the glass connecting layer 4 are the same in composition.

[0045] As Figure 3As shown, the IM shadow elimination film layer 5 comprises a first refractive index matching film 51 arranged on the side surface of the outer glass substrate 1 away from the inner glass substrate 2, and a second refractive index matching film 52 arranged on the side surface of the first refractive index matching film 51 away from the outer glass substrate 1, the refractive index of the first refractive index matching film 51 is greater than that of the second refractive index matching film 52, and the thickness of the second refractive index matching film 52 is greater than that of the first refractive index matching film 51.

[0046] Based on the principle of refractive index matching, the IM shadow elimination film layer 5 uses the different refractive indexes and thicknesses of the first and second refractive index matching films 51 and 52 to respectively cause phase delay of the reflected light formed by the ultraviolet shielding layer 3 and the reflected light formed by the glass connecting layer 4, and when the phase difference between the two beams of reflected light is π, the two beams of reflected light can interfere with each other and cancel each other out to achieve the purpose of shadow elimination.

[0047] In this embodiment, the thickness of the IM shadow elimination film layer 5 is 70-80 nm, wherein the thickness of the first refractive index matching film 51 is 5-10 nm, and the thickness of the second refractive index matching film 52 is 60-80 nm.

[0048] Preferably, the first refractive index matching film 51 can be, but is not limited to, a niobium pentoxide film layer, and the second refractive index matching film 52 can be, but is not limited to, a silicon dioxide film layer, both of which are sequentially formed on the outer glass substrate 1 by magnetron sputtering, vacuum evaporation or vapor deposition.

[0049] The thicknesses of the ultraviolet shielding layer 3 and the glass connecting layer 4 are the same. In this embodiment, the thicknesses of the ultraviolet shielding layer 3 and the glass connecting layer 4 are both between 10-100 nm.

[0050] Preferably, the ultraviolet shielding layer 3 is a metal oxide layer having the characteristics of absorbing, scattering or refracting ultraviolet light, and the metal oxide layer has a high melting point and can not be damaged by high temperature when the outer glass substrate 1, the inner glass substrate 2 and the glass connecting layer 4 are heated and fused.

[0051] In this embodiment, the ultraviolet shielding layer 3 is a titanium dioxide layer, a zinc oxide layer, an aluminum oxide layer, a germanium oxide layer, a cerium oxide layer or a neodymium oxide layer, which is formed on the inner glass substrate 2 by magnetron sputtering, vacuum evaporation or vapor deposition.

[0052] Similarly, the glass connecting layer 4 can also be formed on the inner glass substrate 2 by magnetron sputtering, vacuum evaporation or vapor deposition.

[0053] As Figure 4As shown, the inner glass substrate 2 has a visible area 21 and a peripheral area 22, with the peripheral area 22 surrounding the visible area 21; when used with a display screen, the visible area 21 corresponds to the display area of ​​the display screen, and the peripheral area 22 corresponds to the border area of ​​the display screen.

[0054] The ultraviolet shielding layer 3 is located within the visible area 21, and the glass connecting layer 4 is located within the peripheral area 22. The glass connecting layer 4 can be recessed by 0.1-0.2 mm on each side relative to the peripheral area 22 of the inner glass substrate 2, so that the ultraviolet shielding layer 3 can extend outward by 0.1-0.2 mm on each side relative to the visible area 21 of the inner glass substrate 2.

[0055] like Figure 1 As shown, the UV-resistant cover plate also includes a light-shielding ink layer 6, which is disposed on the side surface of the inner glass substrate 2 facing away from the outer glass substrate 1 and located within the peripheral region 22.

[0056] The light-shielding ink layer 6 is used to define the visible area 21 and the peripheral area 22 on the inner glass substrate 2, so as to facilitate the bonding of the UV-resistant cover plate with the display screen.

[0057] In this embodiment, the light-shielding ink layer 6 is black ink with a thickness between 1 and 4 μm.

[0058] Example 2

[0059] like Figure 5 As shown, a display device includes a display screen 100 and the aforementioned UV-resistant cover plate 300, wherein the UV-resistant cover plate 300 is disposed on the display side of the display screen 100.

[0060] Preferably, the inner glass substrate 2 of the UV-resistant cover plate 300 is bonded and fixed to the display side of the display screen 100 by OCA optical adhesive 200.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present utility model, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the present utility model.

Claims

1. An anti-UV cover sheet, characterized by, The anti-ultraviolet cover plate comprises: an outer glass substrate and an inner glass substrate; an ultraviolet shielding layer arranged between the outer glass substrate and the inner glass substrate; a glass connecting layer arranged between the outer glass substrate and the inner glass substrate and surrounding the periphery of the ultraviolet shielding layer; the outer glass substrate, the inner glass substrate and the glass connecting layer are the same type of glass, and the glass connecting layer is respectively fused and fixed with the outer glass substrate and the inner glass substrate; and an IM shadow elimination film layer arranged on the side surface of the outer glass substrate away from the inner glass substrate and covering the ultraviolet shielding layer and the glass connecting layer.

2. The anti-UV cover sheet according to claim 1, wherein The thickness of the IM shadow elimination film layer is 70-80 nm.

3. The anti-UV cover sheet according to claim 1 or 2, characterized in that, The IM shadow elimination film layer comprises a first refractive index matching film arranged on the side surface of the outer glass substrate away from the inner glass substrate, and a second refractive index matching film arranged on the side surface of the first refractive index matching film away from the outer glass substrate, the refractive index of the first refractive index matching film is greater than that of the second refractive index matching film, and the thickness of the second refractive index matching film is greater than that of the first refractive index matching film.

4. The anti-UV cover sheet according to claim 3, wherein The first refractive index matching film is a niobium pentoxide film layer, and the thickness thereof is 5-10 nm.

5. The anti-UV cover sheet according to claim 3, wherein The second refractive index matching film is a silicon dioxide film layer, and the thickness thereof is 60-80 nm.

6. The anti-UV cover sheet according to claim 1, wherein The thickness of the ultraviolet shielding layer and the glass connecting layer is the same, and the thickness is between 10-100 nm.

7. The anti-UV cover sheet according to claim 1, wherein The ultraviolet shielding layer is a titanium dioxide layer, a zinc oxide layer, an aluminum oxide layer, a germanium oxide layer, a cerium oxide layer or a neodymium oxide layer.

8. The anti-UV cover sheet according to claim 1, wherein The inner glass substrate has a visual area and a peripheral area surrounding the visual area; the ultraviolet shielding layer is located in the visual area, and the glass connecting layer is located in the peripheral area.

9. The anti-UV cover sheet according to claim 8, wherein, The anti-ultraviolet cover plate further comprises a light-shielding ink layer arranged on the side surface of the inner glass substrate away from the outer glass substrate and located in the peripheral area.

10. A display device, characterized by comprising: The anti-ultraviolet cover plate comprises a display screen and the anti-ultraviolet cover plate of claim 1, and the anti-ultraviolet cover plate is arranged on the display side of the display screen.

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