Fluorescent cover plate, touch screen and mobile terminal

Abstract

The utility model discloses a fluorescent cover plate, comprising a glass cover plate which is provided with a front side surface and a back side surface which are oppositely arranged along the thickness direction of the glass cover plate; the fluorescent layer is arranged on the front side surface of the glass cover plate; the anti-reflection layer is arranged on the surface of one side, opposite to the glass cover plate, of the fluorescent layer; and the frame ink layer is arranged on the back side surface of the glass cover plate. The fluorescent cover plate has a strong luminous effect at night. The utility model further discloses a touch screen and a mobile terminal. The touch screen and the mobile terminal comprise the fluorescent cover plate.

Description

Technical Field

[0001] This utility model relates to the field of consumer electronics, and in particular to a fluorescent cover, a touch screen, and a mobile terminal. Background Technology

[0002] With the rapid development of mobile terminal technology, the operating speed and display performance of touch screens are improving day by day. However, existing touch screens still have a prominent problem: in low ambient light conditions, users may not easily notice that the mobile terminal is in a black screen state.

[0003] To address the aforementioned technical problems, Chinese Patent Application No. CN201820808684.1 discloses a touchscreen comprising a cover plate and an ink layer, with a fluorescent layer between the cover plate and the ink layer. This touchscreen, due to the fluorescent layer between the cover plate and the ink layer, can display a bright fluorescence even in low-light environments, making it easier for users to locate objects in dim light, thus improving user convenience and enhancing the user experience. Furthermore, mobile terminals equipped with this type of fluorescent screen can also facilitate user navigation in low-light environments, resulting in a better user experience.

[0004] However, the actual luminescence intensity of the fluorescent layer is very weak. After the fluorescent layer is placed between the cover plate and the ink layer, the light emitted by the fluorescent layer will be lost when passing through the cover plate, and the luminescence intensity will be further weakened. Therefore, the actual nighttime luminescence effect is very poor. Utility Model Content

[0005] To address the shortcomings of the existing technology, this invention provides a fluorescent cover plate with a strong nighttime luminescence effect.

[0006] This utility model also provides a touch screen and a mobile terminal, including the aforementioned fluorescent cover plate.

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

[0008] A fluorescent cover plate, comprising:

[0009] A glass cover plate having a front side surface and a back side surface that are arranged opposite to each other along its thickness direction;

[0010] A fluorescent layer is disposed on the front side surface of the glass cover plate;

[0011] An antireflective layer is disposed on the side surface of the fluorescent layer facing away from the glass cover plate;

[0012] A border ink layer is disposed on the back surface of the glass cover.

[0013] Furthermore, the thickness of the anti-reflective layer is less than the thickness of the glass cover.

[0014] Furthermore, the fluorescent layer is a rare earth element fluorescent material, an organic fluorescent material, or a quantum dot fluorescent material.

[0015] Furthermore, the thickness of the fluorescent layer is 20-50 nm.

[0016] Furthermore, the antireflective layer is a single-layer structure composed of one of magnesium fluoride, lanthanum fluoride, titanium dioxide, aluminum oxide, silicon dioxide, hafnium oxide, and zirconium oxide, or a multi-layer structure composed of at least two of them.

[0017] Furthermore, the fluorescent cover plate also includes an insulating layer disposed between the glass cover plate and the fluorescent layer.

[0018] Furthermore, the border ink layer is a photosensitive color-changing ink.

[0019] A touch screen includes a touch function layer and the aforementioned fluorescent cover plate, wherein the touch function layer is disposed on the edge ink layer of the fluorescent cover plate.

[0020] Furthermore, the touch functional layer is touch glass or touch film, which is bonded and fixed to the edge ink layer of the fluorescent cover plate by OCA optical adhesive.

[0021] A mobile terminal, including the aforementioned touchscreen.

[0022] The present invention has the following beneficial effects: The fluorescent cover plate of the present invention has the fluorescent layer disposed on the front side surface of the glass cover plate, so that the fluorescent light emitted by the fluorescent layer does not need to pass through the glass cover plate, thereby reducing the loss of fluorescent light and enhancing the nighttime luminescence effect of the cover plate; in addition, the anti-reflection layer disposed on the fluorescent layer is used to protect the fluorescent layer from scratches by foreign objects, while also using the light interference effect to improve the transmittance of fluorescent light, further enhancing the nighttime luminescence effect of the cover plate. Attached Figure Description

[0023] Figure 1 A schematic diagram of the stacked structure of the fluorescent cover plate provided by this utility model.

[0024] Figure 2 A schematic diagram of the stacked structure of another fluorescent cover plate provided by this utility model.

[0025] Figure 3 A schematic diagram of the stacked structure of the touch screen provided by this utility model. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings. Throughout the drawings, the same or similar reference numerals denote 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 intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Example 1

[0031] like Figure 1 As shown, a fluorescent cover plate includes:

[0032] The glass cover plate 11 has a front side surface and a back side surface that are disposed opposite to each other along its thickness direction;

[0033] A fluorescent layer 12 is disposed on the front side surface of the glass cover plate 11;

[0034] An antireflective layer 13 is disposed on the side surface of the fluorescent layer 12 facing away from the glass cover plate 11;

[0035] A border ink layer 14 is disposed on the back surface of the glass cover plate 11.

[0036] The fluorescent cover of this invention has a fluorescent layer 12 disposed on the front side surface of the glass cover 11, so that the fluorescent light emitted by the fluorescent layer 12 does not need to pass through the glass cover 11, reducing the loss of fluorescent light and enhancing the nighttime luminescence effect of the cover. In addition, an anti-reflective layer 13 is disposed on the fluorescent layer 12, which not only protects the fluorescent layer 12 from scratches by foreign objects, but also improves the transmittance of fluorescent light by utilizing the light interference effect, further enhancing the nighttime luminescence effect of the cover.

[0037] The fluorescent layer 12 can absorb the energy of short-wavelength light (usually ultraviolet light or short-wavelength visible light) and emit long-wavelength visible light in the dark, making it easy to find the product if it is lost. The fluorescent layer 12 is an autoluminescent material that does not require electricity, saving power and requiring no additional circuit design.

[0038] The glass cover 11 includes a display area and a border area, the border area surrounds the display area, the fluorescent layer 12 covers both the display area and the border area of ​​the glass cover 11, and the border ink layer 14 covers only the border area of ​​the glass cover 11.

[0039] The fluorescent layer 12 may be, but is not limited to, rare earth element fluorescent materials, organic fluorescent materials, or quantum dot fluorescent materials.

[0040] Rare earth fluorescent materials typically contain lanthanide elements such as europium (Eu), terbium (Tb), and cerium (Ce), with common examples including europium titanate, cerium magnesium aluminate, and terbium magnesium aluminate. These materials emit different colors of light after absorbing specific wavelengths. Organic fluorescent materials, also known as fluorescent dyes, are composed of organic compounds, such as polyporphyrins and their derivatives and copolymers, pyrazoline derivatives, and porphyrin compounds. Their emission color can be adjusted by modifying their molecular structure. Quantum dot fluorescent materials are nanoscale particles made of semiconductor materials, such as cadmium selenide, cadmium sulfide, indium arsenide, or indium phosphide. Their emission wavelength can be precisely controlled by adjusting the particle size.

[0041] In this embodiment, the thickness of the fluorescent layer 12 is 20-50 nm.

[0042] Preferably, the thickness of the antireflective layer 13 is less than the thickness of the glass cover plate 11, so as to reduce the loss of fluorescent light of the fluorescent layer 12 due to the thickness of the transmission medium.

[0043] The antireflective layer 13 can be magnesium fluoride, lanthanum fluoride, titanium dioxide, aluminum oxide, silicon dioxide, hafnium oxide, zirconium oxide, etc. The antireflective layer 13 can be a single-layer structure or a multi-layer structure, wherein the single-layer structure is composed of one of the aforementioned substances, and the multi-layer structure is composed of at least two of the aforementioned substances.

[0044] In this embodiment, the thickness of the antireflection layer 13 is 30-60 nm.

[0045] In some examples, the border ink layer 14 is a photosensitive color-changing ink.

[0046] The photosensitive color-changing ink can undergo reversible color changes under short-wavelength light (usually ultraviolet light or short-wavelength visible light). The greater the light intensity, the more obvious the color-changing effect. Using the photosensitive color-changing ink as the border ink layer 14 can make the fluorescent cover plate exhibit different color effects under light irradiation, thereby improving the product's aesthetics.

[0047] In some instances, such as Figure 2 As shown, the fluorescent cover also includes an insulating layer 15, which is disposed between the glass cover 11 and the fluorescent layer 12 to prevent the static electricity generated when the mobile terminal is working from affecting the fluorescence effect of the fluorescent layer 12.

[0048] The insulating layer 15 can be made of strontium titanate, silicon dioxide, silicon oxynitride, etc., and its thickness is 50-100 nm.

[0049] Example 2

[0050] like Figure 3 As shown, a touch screen includes a touch function layer 3 and a fluorescent cover plate 1 as described in Embodiment 1. The touch function layer 3 is disposed on the edge ink layer 14 of the fluorescent cover plate 1.

[0051] In this embodiment, the touch function layer 3 is a touch glass or a touch film, which is bonded and fixed to the edge ink layer 14 of the fluorescent cover plate 1 by OCA optical adhesive 2.

[0052] Example 3

[0053] A mobile terminal includes the touchscreen described in Embodiment 2.

[0054] 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. A fluorescent cover plate, characterized in that, include: A glass cover plate having a front side surface and a back side surface that are arranged opposite to each other along its thickness direction; A fluorescent layer is disposed on the front side surface of the glass cover plate; An antireflective layer is disposed on the side surface of the fluorescent layer facing away from the glass cover plate; A border ink layer is disposed on the back surface of the glass cover.

2. The fluorescent cover plate according to claim 1, characterized in that, The thickness of the anti-reflective layer is less than the thickness of the glass cover.

3. The fluorescent cover plate according to claim 1, characterized in that, The fluorescent layer is a rare earth element fluorescent material, an organic fluorescent material, or a quantum dot fluorescent material.

4. The fluorescent cover plate according to claim 1, characterized in that, The thickness of the fluorescent layer is 20-50 nm.

5. The fluorescent cover plate according to claim 1, characterized in that, The antireflective layer is a single-layer structure composed of one of magnesium fluoride, lanthanum fluoride, titanium dioxide, aluminum oxide, silicon dioxide, hafnium oxide, and zirconium oxide, or a multi-layer structure composed of at least two of them.

6. The fluorescent cover plate according to claim 1, characterized in that, The fluorescent cover also includes an insulating layer, which is disposed between the glass cover and the fluorescent layer.

7. The fluorescent cover plate according to claim 1, characterized in that, The border ink layer is a photosensitive color-changing ink.

8. A touchscreen, characterized in that, It includes a touch function layer and the fluorescent cover plate as described in claim 1, wherein the touch function layer is disposed on the edge ink layer of the fluorescent cover plate.

9. The touchscreen according to claim 8, characterized in that, The touch function layer is a touch glass or a touch film, which is bonded and fixed to the edge ink layer of the fluorescent cover plate by OCA optical adhesive.

10. A mobile terminal, characterized in that, Includes the touchscreen as described in claim 8.

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