Wear-resistant photosensitive color-changing cover plate and touch display screen

Abstract

The utility model discloses a wear-resistant photosensitive color-changing cover plate, which comprises a glass cover plate provided with a display area and a peripheral area, and the peripheral area surrounds the display area; the photosensitive color-changing ink layer is arranged on the surface of one side of the glass cover plate, only covers the peripheral area and avoids the display area; and the hard protective layer is arranged on the surface of one side, far away from the glass cover plate, of the photosensitive color-changing ink layer. The wear-resistant photosensitive color-changing cover plate can prevent the photosensitive color-changing ink layer from being scratched by foreign objects, so that the color-changing effect of the photosensitive color-changing ink layer is ensured. The utility model further discloses a touch display screen which comprises the wear-resistant photosensitive color-changing cover plate.

Description

Technical Field

[0001] This utility model relates to the field of touch technology, and in particular to a wear-resistant photosensitive color-changing cover and a touch display screen. Background Technology

[0002] Existing touchscreen displays use a glass cover for surface protection. A layer of colored ink is applied to the outer perimeter of the glass cover. This colored ink serves two purposes: firstly, it covers the non-display areas of the touchscreen display, and secondly, it contributes to the appearance of the touchscreen display.

[0003] To enhance the personalization of the touchscreen display's appearance, Chinese Patent Application No. CN201920992056.8 discloses a flexible display screen, including a display module and a cover plate covering the display module. Near the edge of the cover plate facing the display module, a photosensitive color-changing ink layer and a base color ink layer are sequentially stacked. Because of the sequentially stacked photosensitive color-changing ink layer and base color ink layer on the edge of the cover plate facing the display module, this flexible display screen can change its color in response to changes in ambient light, providing a better user experience.

[0004] However, the ink material is relatively soft, and the photosensitive color-changing ink layer is easily scratched by foreign objects during the assembly, transportation and testing of the touch screen, which affects the color-changing effect, such as uneven color changing. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model provides a wear-resistant photosensitive color-changing cover plate, which can prevent the photosensitive color-changing ink layer from being scratched by foreign objects and ensure its color-changing effect.

[0006] This utility model also provides a touch screen, including the above-mentioned wear-resistant photosensitive color-changing cover plate.

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

[0008] A wear-resistant photosensitive color-changing cover plate, comprising:

[0009] A glass cover plate having a display area and a peripheral area, the peripheral area surrounding the display area;

[0010] A photosensitive color-changing ink layer is disposed on one side surface of the glass cover plate, and only covers the peripheral area, while avoiding the display area;

[0011] A rigid protective layer is disposed on the surface of the photosensitive color-changing ink layer away from the glass cover.

[0012] Furthermore, the thickness of the photosensitive color-changing ink layer is 7-9 μm.

[0013] Furthermore, the hard protective layer includes a black coating layer, a corrosion-resistant coating layer, and a hard coating layer sequentially disposed on the photosensitive color-changing ink layer.

[0014] Furthermore, the thickness of the black coating layer is 10-20 nm, the thickness of the corrosion-resistant coating layer is 30-60 nm, and the thickness of the hard coating layer is 20-50 nm.

[0015] Furthermore, the wear-resistant photosensitive color-changing cover plate also includes a colored ink layer, which is disposed between the photosensitive color-changing ink layer and the hard protective layer, or disposed on the side surface of the hard protective layer away from the photosensitive color-changing ink layer.

[0016] Furthermore, the thickness of the colored ink layer is 5-15 μm.

[0017] A touch display screen includes a touch panel and the aforementioned wear-resistant photosensitive color-changing cover plate, wherein the touch panel is disposed on one side surface of the wear-resistant photosensitive color-changing cover plate having the photosensitive color-changing ink layer.

[0018] Furthermore, the touch panel is bonded and fixed to the wear-resistant photosensitive color-changing cover plate using a first OCA optical adhesive.

[0019] Furthermore, the touch display screen also includes a display panel disposed on the side surface of the touch panel away from the wear-resistant photosensitive color-changing cover.

[0020] Furthermore, the display panel is bonded and fixed to the touch panel using a second OCA optical adhesive.

[0021] The present invention has the following beneficial effects: The wear-resistant photosensitive color-changing cover plate of the present invention provides a hard protective layer on the photosensitive color-changing ink layer. The high hardness and wear resistance of the hard protective layer protects the photosensitive color-changing ink layer, preventing it from being scratched by foreign objects during the assembly, transportation and testing of the touch screen. This ensures the color-changing effect of the photosensitive color-changing ink layer and avoids problems such as uneven color changing after the photosensitive color-changing ink layer is scratched. Attached Figure Description

[0022] Figure 1 A schematic diagram of the stacking structure of the wear-resistant photosensitive color-changing cover plate provided by this utility model.

[0023] Figure 2 A schematic diagram of the planar structure of the wear-resistant photosensitive color-changing cover plate provided by this utility model.

[0024] Figure 3 A schematic diagram of the stacking structure of another wear-resistant photosensitive color-changing cover plate provided by this utility model.

[0025] Figure 4 A schematic diagram of the stacking structure of another wear-resistant photosensitive color-changing cover plate provided by this utility model.

[0026] Figure 5 A schematic diagram of the stacked structure of the touch display screen provided by this utility model. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Example 1

[0032] like Figure 1 and 2 As shown, a wear-resistant photosensitive color-changing cover plate includes:

[0033] The glass cover 11 has a display area 111 and a peripheral area 112, the peripheral area 112 surrounding the display area 111;

[0034] Twelve layers of photosensitive color-changing ink are disposed on one side surface of the glass cover plate 11, covering only the peripheral area 112 and avoiding the display area 111;

[0035] A rigid protective layer 13 is disposed on the surface of the photosensitive color-changing ink layer 12 away from the glass cover plate 11.

[0036] The wear-resistant photosensitive color-changing cover plate of this utility model provides a hard protective layer 13 on the photosensitive color-changing ink 12 layer. The high hardness and wear resistance of the hard protective layer 13 protects the photosensitive color-changing ink 12 layer, preventing it from being scratched by foreign objects during the assembly, transportation and testing of the touch screen. This ensures the color-changing effect of the photosensitive color-changing ink 12 layer and avoids problems such as uneven color changing after the photosensitive color-changing ink 12 layer is scratched.

[0037] The photosensitive color-changing ink layer 12 is a special ink layer containing photochromic materials that can undergo reversible color changes under light (especially ultraviolet light), such as changing from transparent to opaque. The photosensitive color-changing ink layer 12 consists of photosensitive pigment microcapsules and a binder. Its manufacturing method generally involves dissolving the photosensitive pigment in a solvent to form miniaturized photosensitive pigment microcapsules, then adding a binder according to different applications to form the photosensitive color-changing ink 12. Subsequently, the photosensitive color-changing ink 12 is formed on one side surface of the glass cover plate 11 using methods such as roller coating, spraying, or printing, and finally cured into a film.

[0038] In this embodiment, the thickness of the 12-layer photosensitive color-changing ink is 7-9 μm. It is transparent under no ultraviolet irradiation, but under ultraviolet (sunlight) irradiation, it is one of the non-transparent colors such as red, blue or green. The greater the ultraviolet intensity, the darker the color.

[0039] In some examples, such as Figure 3 and 4 As shown, the wear-resistant photosensitive color-changing cover plate also includes a colored ink layer 14, which is disposed between the photosensitive color-changing ink layer 12 and the hard protective layer 13, or disposed on the surface of the hard protective layer 13 away from the photosensitive color-changing ink layer 12.

[0040] The colored ink layer 14 provides a base color for the outer periphery 112 of the glass cover 11. When the photosensitive color-changing ink layer 12 is transparent, the outer periphery 112 of the glass cover 11 displays the same color as the colored ink layer 14. When the photosensitive color-changing ink layer 12 is opaque, the outer periphery 112 of the glass cover 11 displays the same color as the photosensitive color-changing ink layer 12 after it changes color. The color of the colored ink layer 14 should be different from the color of the photosensitive color-changing ink layer 12 after it changes color, and the greater the color difference, the better, so that users can easily distinguish between them.

[0041] In an indoor environment, the photosensitive color-changing ink layer 12 is transparent under the absence of ultraviolet light, and the outer area 112 of the glass cover plate 11 displays the same color as the colored ink layer 14. In an outdoor environment, the photosensitive color-changing ink layer 12 changes color under the illumination of ultraviolet light, and the outer area 112 of the glass cover plate 11 displays the same color as the photosensitive color-changing ink layer 12 after the color change.

[0042] Preferably, the colored ink layer 14 is disposed between the photosensitive color-changing ink layer 12 and the hard protective layer 13, so that the hard protective layer 13 can simultaneously protect the colored ink layer 14.

[0043] In this embodiment, the thickness of the colored ink layer 14 is 5-15μm. In addition to conventional black or white ink, colored inks such as red, blue, or green ink can also be used.

[0044] like Figure 1 As shown, the hard protective layer 13 includes a black coating layer 131, a corrosion-resistant coating layer 132, and a hard coating layer 133 sequentially disposed on the photosensitive color-changing ink layer 12.

[0045] The black coating layer 131 is used to cover the photosensitive color-changing ink layer 12 and the colored ink layer 14 to prevent light leakage due to the low ink density of the photosensitive color-changing ink layer 12 and the colored ink layer 14; the corrosion-resistant coating layer 132 is used to provide high corrosion resistance to prevent the photosensitive color-changing ink layer 12 and the colored ink layer 14 from being corroded by acid and alkali solutions during the assembly, transportation and testing of the touch screen; the hard coating layer 133 is used to provide high hardness to prevent the photosensitive color-changing ink layer 12 and the colored ink layer 14 from being scratched by foreign objects during the assembly, transportation and testing of the touch screen.

[0046] In this embodiment, the black coating layer 131 is a boron carbide coating with a thickness of 10-20 nm; the corrosion-resistant coating layer 132 is an aluminum fluoride coating with a thickness of 30-60 nm; and the hard coating layer 133 is a niobium nitride coating with a thickness of 20-50 nm.

[0047] Example 2

[0048] like Figure 5 As shown, a touch display screen includes a touch panel 3, a display panel 5, and a wear-resistant photosensitive color-changing cover plate 1 as described in Embodiment 1. The touch panel 3 is disposed on one side surface of the wear-resistant photosensitive color-changing cover plate 1 with the photosensitive color-changing ink layer 12, and the display panel 5 is disposed on the side surface of the touch panel 3 away from the wear-resistant photosensitive color-changing cover plate 1.

[0049] Preferably, the touch panel 3 is bonded and fixed to the wear-resistant photosensitive color-changing cover plate 1 by the first OCA optical adhesive 2, and the display panel 5 is bonded and fixed to the touch panel 3 by the second OCA optical adhesive 4.

[0050] 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 wear-resistant photosensitive color-changing cover plate, characterized in that, include: A glass cover plate having a display area and a peripheral area, the peripheral area surrounding the display area; A photosensitive color-changing ink layer is disposed on one side surface of the glass cover plate, and only covers the peripheral area, while avoiding the display area; A rigid protective layer is disposed on the surface of the photosensitive color-changing ink layer away from the glass cover.

2. The wear-resistant photosensitive color-changing cover plate according to claim 1, characterized in that, The thickness of the photosensitive color-changing ink layer is 7-9 μm.

3. The wear-resistant photosensitive color-changing cover plate according to claim 1, characterized in that, The hard protective layer includes a black coating layer, a corrosion-resistant coating layer, and a hard coating layer sequentially disposed on the photosensitive color-changing ink layer.

4. The wear-resistant photosensitive color-changing cover plate according to claim 3, characterized in that, The thickness of the black coating layer is 10-20 nm, the thickness of the corrosion-resistant coating layer is 30-60 nm, and the thickness of the hard coating layer is 20-50 nm.

5. The wear-resistant photosensitive color-changing cover plate according to claim 1, characterized in that, The wear-resistant photosensitive color-changing cover plate also includes a colored ink layer, which is disposed between the photosensitive color-changing ink layer and the hard protective layer, or disposed on the surface of the hard protective layer away from the photosensitive color-changing ink layer.

6. The wear-resistant photosensitive color-changing cover plate according to claim 5, characterized in that, The thickness of the colored ink layer is 5-15 μm.

7. A touch display screen, characterized in that, The invention includes a touch panel and the wear-resistant photosensitive color-changing cover plate as described in claim 1, wherein the touch panel is disposed on one side surface of the wear-resistant photosensitive color-changing cover plate having the photosensitive color-changing ink layer.

8. The touch display screen according to claim 7, characterized in that, The touch panel is bonded and fixed to the wear-resistant photosensitive color-changing cover plate by a first OCA optical adhesive.

9. The touch display screen according to claim 7 or 8, characterized in that, The touch display screen also includes a display panel disposed on the side surface of the touch panel away from the wear-resistant photosensitive color-changing cover.

10. The touch display screen according to claim 9, characterized in that, The display panel is bonded and fixed to the touch panel using a second OCA optical adhesive.

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