Novel anti-reflection film-coated cover plate and display device
By alternately covering the glass cover with lanthanum oxide and titanium dioxide layers, the problems of high reflectivity, poor light transmittance and insufficient weather resistance of traditional coated cover plates are solved, achieving high light transmittance and anti-reflection effect, while reducing production costs.
Patent Information
- Application Number
- CN202520174950.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-26
AI Technical Summary
Traditional coated covers have high reflectivity, poor light transmittance, and insufficient weather resistance, which limits their performance in high-end applications.
Multiple layers of lanthanum oxide and multiple layers of titanium dioxide are alternately applied to the glass cover plate. The lanthanum oxide layer has refractive properties and weather resistance, while the titanium dioxide layer has anti-reflective properties. The anti-reflective effect and cost are balanced by controlling the number and thickness of the layers.
It improves light transmittance, enhances anti-reflective properties and weather resistance, extends service life, and reduces production costs.
Smart Images
Figure CN223842176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coated cover plates, and in particular to a novel anti-reflective coated cover plate and display device. Background Technology
[0002] With the continuous advancement of technology, higher requirements have been placed on material surface treatment technology, especially in fields such as optoelectronic displays, equipment display glass, and automotive displays.
[0003] In related technologies, traditional coated cover plates have limited performance in high-end applications due to problems such as high reflectivity, poor light transmittance, and insufficient weather resistance. Utility Model Content
[0004] In order to solve the problems existing in the prior art, this utility model provides a novel anti-reflective coated cover plate and display device.
[0005] On the one hand, the novel anti-reflective coated cover plate provided by this utility model adopts the following technical solution, including: a glass cover plate, multiple layers of lanthanum oxide and multiple layers of titanium dioxide; the multiple layers of lanthanum oxide and the multiple layers of titanium dioxide alternately cover the glass cover plate, the lanthanum oxide layer has refractive properties and weather resistance, and the titanium dioxide layer has anti-reflective properties.
[0006] By employing the above technical solution, the titanium dioxide layer exhibits excellent optical properties (anti-reflective properties) and chemical stability. The titanium dioxide layer primarily functions as an anti-reflective agent, reducing light reflection loss on the glass cover surface and improving light transmittance. The lanthanum oxide layer, with its high refractive index, further enhances the anti-reflective effect when used in conjunction with the titanium dioxide layer, resulting in low-reflection characteristics over a wider spectral range, essentially meeting the high requirements of modern technology for material surfaces. Furthermore, the lanthanum oxide layer may also provide additional hardness or weather resistance, effectively protecting the glass cover.
[0007] Optionally, the glass cover is in contact with one of the multiple layers of titanium dioxide, and one of the multiple layers of lanthanum oxide is in contact with the external environment.
[0008] Optionally, the number of lanthanum oxide layers is the same as the number of titanium dioxide layers.
[0009] Optionally, the lanthanum oxide layer has three layers, and the titanium dioxide layer has three layers.
[0010] Optionally, the thickness of each of the multilayered lanthanum oxide layers is 40 nanometers to 50 nanometers.
[0011] Optionally, the thickness of the multilayer titanium dioxide layers is 20 nanometers to 30 nanometers.
[0012] Optionally, the thickness of the glass cover is greater than that of the lanthanum oxide layer.
[0013] Optionally, the alternating coverage of the multiple lanthanum oxide layers and the multiple titanium dioxide layers is performed by having one lanthanum oxide layer cover one titanium dioxide layer, and the alternating coverage is carried out in a cycle.
[0014] Optionally, multiple layers of lanthanum oxide and multiple layers of titanium dioxide are alternately covered, and the surface area of the alternating multiple layers of lanthanum oxide and multiple layers of titanium dioxide gradually decreases along the direction from the glass cover to the lanthanum oxide layer in contact with the external environment.
[0015] On the other hand, the present invention provides a display device including the aforementioned novel anti-reflective coated cover plate.
[0016] Any of the above-described technical solutions of this utility model has at least some of the following beneficial effects:
[0017] 1. The titanium dioxide layer primarily functions as an anti-reflective agent, reducing light reflection loss on the glass cover surface and improving light transmittance. The lanthanum oxide layer, with its high refractive index, further enhances the anti-reflective effect when used in conjunction with the titanium dioxide layer, resulting in low-reflection characteristics over a wider spectral range.
[0018] 2. The lanthanum oxide layer may also provide additional hardness or weather resistance, effectively protecting the glass cover.
[0019] 3. By setting multiple layers of lanthanum oxide and multiple layers of titanium dioxide and alternating them on the glass cover, the anti-reflective performance can be effectively enhanced, and the weather resistance of the lanthanum oxide layer can be used to maintain the service life of the alternating multiple layers of titanium dioxide.
[0020] 4. The thickness of the lanthanum oxide layer is set to 40 to 50 nanometers, and the thickness of the titanium dioxide layer is set to 20 to 30 nanometers, effectively balancing the relationship between anti-reflective effect and material cost. Attached Figure Description
[0021] Figure 1 This is a cross-sectional anatomical view of a novel anti-reflective coated cover plate according to this utility model;
[0022] Figure 2 This is a front view of the outer contour of a novel anti-reflective coated cover plate according to this utility model.
[0023] Explanation of reference numerals in the attached diagram: 1. Glass cover plate; 2. Titanium dioxide layer; 3. Lanthanum oxide layer. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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.
[0026] Example 1
[0027] This utility model discloses a novel anti-reflective coated cover plate. (Refer to...) Figure 1 It includes: a glass cover plate 1, multiple layers of lanthanum oxide 3 and multiple layers of titanium dioxide 2; the multiple layers of lanthanum oxide 3 and multiple layers of titanium dioxide 2 are alternately covered on the glass cover plate 1, the lanthanum oxide layer 3 has refractive properties and weather resistance, and the titanium dioxide layer 2 has anti-reflective properties.
[0028] By employing the above technical solution, the titanium dioxide layer 2 exhibits excellent optical properties, anti-reflective properties, and chemical stability. The titanium dioxide layer 2 primarily functions as an anti-reflective agent, reducing light reflection loss on the surface of the glass cover 1 and improving light transmittance. The lanthanum oxide layer 3, with its high refractive index, further enhances the anti-reflective effect when used in conjunction with the titanium dioxide layer 2, resulting in low-reflection characteristics over a wider spectral range. Furthermore, the lanthanum oxide layer 3 may also provide additional hardness or weather resistance, effectively protecting the glass cover 1.
[0029] Specifically, weather resistance refers to a material's ability to maintain its original performance and appearance under long-term climatic conditions, such as sunlight exposure, temperature changes, wind, and rain. Higher weather resistance results in a longer service life. The highly weather-resistant lanthanum oxide layer 3 can maintain its stable performance over a long period, resisting aging, fading, and deformation. It can also adapt to various harsh climatic conditions, ensuring its reliability and stability in different environments, effectively protecting the glass cover 1 and extending the service life of the new coated cover.
[0030] In addition, by setting multiple layers of lanthanum oxide 3 and multiple layers of titanium dioxide 2 and alternately covering them on the glass cover plate 1, the anti-reflective performance can be effectively enhanced, and the weather resistance of the lanthanum oxide layer 3 can be used to maintain the service life of the alternating multiple layers of titanium dioxide 2.
[0031] In this preferred embodiment, the glass cover 1 is in contact with and covers one of the layers of multilayer titanium dioxide 2, and one of the layers of multilayer lanthanum oxide 3 is in contact with the external environment.
[0032] By adopting the above technical solution, since the lanthanum oxide layer 3 is weather-resistant, it is placed on the outermost side. This effectively protects the inner glass cover 1 and titanium dioxide layer 2 from environmental corrosion. The glass cover 1 is close to the display device, and the display content is projected onto the titanium dioxide layer 2 through the glass cover 1. The titanium dioxide layer 2 reduces the influence of external light, thus presenting the display content to the user and effectively improving the user experience.
[0033] In this preferred embodiment, the number of lanthanum oxide layer 3 is the same as the number of titanium dioxide layer 2.
[0034] By adopting the above technical solution, the number of alternating layers of lanthanum oxide 3 and titanium dioxide 2 on the glass cover plate 1 is the same. That is, a layer of titanium dioxide 2 is covered on the glass cover plate 1, followed by a layer of lanthanum oxide 3. If another layer of titanium dioxide 2 needs to be covered, a corresponding layer of lanthanum oxide 3 must be covered on top. This method ensures that the lanthanum oxide layer 3 is always exposed to the external environment, effectively utilizing the weather resistance of the lanthanum oxide layer 3 to protect the internal titanium dioxide layer 2 and the glass cover plate 1.
[0035] Optionally, multiple layers of lanthanum oxide 3 and multiple layers of titanium dioxide 2 are alternately applied to the glass cover plate 1. This can be achieved by layering one layer of titanium dioxide 2 with one layer of lanthanum oxide 3, or by layering multiple layers of titanium dioxide 2 with multiple layers of lanthanum oxide 3, and then layering multiple layers of titanium dioxide 2 with multiple layers of lanthanum oxide 3. This effectively reduces the thickness of the multiple titanium dioxide layers 2, thus achieving the desired effect of layering multiple titanium dioxide layers 2. In this embodiment, a layer of titanium dioxide 2 layer with one layer of lanthanum oxide 3 is used.
[0036] In this preferred embodiment, the lanthanum oxide layer 3 has three layers, and the titanium dioxide layer 2 has three layers.
[0037] By adopting the above technical solution, the titanium dioxide layer 2 has high anti-reflection performance. The stacking of multiple titanium dioxide layers 2 can increase the anti-reflection effect. However, the more layers stacked, the more material is required and the higher the cost. If fewer titanium dioxide layers 2 are stacked, it is impossible to achieve a high-quality anti-reflection effect. Therefore, three titanium dioxide layers 2 are set to effectively balance the relationship between anti-reflection effect and material cost.
[0038] Meanwhile, the number of lanthanum oxide layer 3 must be the same as that of titanium dioxide layer 2, so lanthanum oxide layer 3 is also set to three layers, which effectively enhances the anti-reflection effect and weather resistance.
[0039] In this preferred embodiment, the thickness of the multilayer lanthanum oxide layer 3 is 40 nanometers to 50 nanometers, and the thickness of the multilayer titanium dioxide layer 2 is 20 nanometers to 30 nanometers.
[0040] By adopting the above technical solution, the titanium dioxide layer 2 has high anti-reflection performance. The lanthanum oxide layer 3 assists the titanium dioxide layer 2, improving the optical performance of the coated cover plate and increasing its weather resistance. If the titanium dioxide layer 2 and the lanthanum oxide layer 3 are too thick, it will lead to increased material and cost. However, if the titanium dioxide layer 2 and the lanthanum oxide layer 3 are too thin, they cannot achieve a high-quality anti-reflection effect. At the same time, the production of thinner titanium dioxide layer 2 and lanthanum oxide layer 3 requires more refined technology, which increases the technical cost. Therefore, the thickness of the lanthanum oxide layer 3 is set to 40 nanometers to 50 nanometers, and the thickness of the titanium dioxide layer 2 is set to 20 nanometers to 30 nanometers, effectively balancing the relationship between anti-reflection effect and material cost.
[0041] In this preferred embodiment, the thickness of the glass cover plate 1 is greater than that of the lanthanum oxide layer 3.
[0042] By adopting the above technical solution, the glass cover plate 1 plays a major protective role for the display device. The lanthanum oxide layer 3 and titanium dioxide layer 2 covering the glass cover plate 1 are both for protecting the glass cover plate 1 or for assisting the glass cover plate 1 in viewing the display content more clearly. Therefore, the thickness of the glass cover plate 1 is much greater than that of the lanthanum oxide layer 3 and titanium dioxide layer 2, so as to play a major protective role for the display device.
[0043] In this preferred embodiment, the alternating coverage of the multilayer lanthanum oxide layer 3 and the multilayer titanium dioxide layer 2 is such that one layer of lanthanum oxide layer 3 covers one layer of titanium dioxide layer 2, and the alternating coverage is performed in a cyclical manner.
[0044] By adopting the above technical solution, the alternating coverage of multiple layers of lanthanum oxide 3 and multiple layers of titanium dioxide 2 involves one layer of lanthanum oxide 3 covering one layer of titanium dioxide 2. That is, a layer of titanium dioxide 2 is covered on the glass cover plate 1, followed by a layer of lanthanum oxide 3, and then another layer of titanium dioxide 2, and so on, alternating repeatedly. Since producing a thinner titanium dioxide layer 2 requires a more refined manufacturing process, and a more refined manufacturing process requires higher costs, in order to reduce production costs, the titanium dioxide layer 2 with a pre-set thickness of 20 nanometers to 30 nanometers is made as a complete layer without further refined layering, effectively reducing manufacturing costs.
[0045] In this preferred embodiment, multiple layers of lanthanum oxide 3 and multiple layers of titanium dioxide 2 are alternately covered, and the surface area of the alternating multiple layers of lanthanum oxide 3 and multiple layers of titanium dioxide 2 gradually decreases along the direction from the glass cover plate 1 to the lanthanum oxide layer 3 in contact with the external environment.
[0046] By adopting the above technical solution, the glass cover plate 1, titanium dioxide layer 2, and lanthanum oxide layer 3 are bonded together with adhesive to form a coated cover plate that is thicker than any single layer. This increases the risk of the glass cover plate 1 shattering at its corners. To reduce this risk, the corner of the glass cover plate 1 away from the display device is rounded, meaning the surface area of the alternating layers of lanthanum oxide layer 3 and titanium dioxide layer 2 gradually decreases. To ensure that the rounded corners of the coated cover plate do not affect the visual effect of viewing the screen, the diameter of the rounded corners is less than 1 mm. Furthermore, to accommodate the rounded corners of the glass cover plate 1, the surface area of the alternating layers of lanthanum oxide layer 3 and titanium dioxide layer 2 decreases sequentially. This results in the maximum surface area of the layer closer to the glass cover plate 1 being greater than the maximum surface area of the layer farther from the glass cover plate 1, thus reducing the risk of the coated cover plate shattering.
[0047] In addition, to reduce the risk of glass cover plate 1 shattering while ensuring the aesthetics of the coated cover plate, the maximum surface area of the two adjacent layers is kept to no more than 1 square millimeter, and the edges of the coated cover plate are made to be curved for a more aesthetically pleasing appearance.
[0048] Example 2
[0049] The present invention provides a display device, including a novel anti-reflective coated cover plate.
[0050] The implementation principle of the novel anti-reflective coated cover plate and display device of this utility model is as follows:
[0051] By utilizing the complementary properties of lanthanum oxide layer 3 and titanium dioxide layer 2, and by controlling the number of lanthanum oxide layer 3 and the thickness of each layer of titanium dioxide layer 2, a coated cover plate with anti-reflective properties is constructed.
[0052] Specifically, the titanium dioxide layer 2 reduces light reflection loss on the cover plate surface and improves light transmittance through its excellent optical properties, thus achieving anti-reflection performance. The lanthanum oxide layer 3, with its high refractive index, combines with the titanium dioxide layer 2 to form a multilayer interference film, further broadening the spectral range of low-reflection characteristics. This novel coated cover plate causes light to undergo multiple reflections and interferences between the multilayer lanthanum oxide layer 3 and the titanium dioxide layer 2, thereby achieving light control.
[0053] Furthermore, the lanthanum oxide layer 3 imparts higher hardness and weather resistance to the novel coated cover plate, enhancing its overall physical properties. By optimizing the thickness parameters of the novel coated cover plate, optimal optical effects and physical properties can be achieved to meet the needs of different application scenarios.
[0054] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A novel anti-reflective coated cover plate, characterized in that, include: Glass cover (1), multilayer lanthanum oxide layer (3) and multilayer titanium dioxide layer (2); Multiple layers of lanthanum oxide (3) and multiple layers of titanium dioxide (2) are alternately covered on the glass cover plate (1). The lanthanum oxide layer (3) has refractive properties and weather resistance, and the titanium dioxide layer (2) has anti-reflective properties.
2. The novel anti-reflective coated cover plate according to claim 1, characterized in that, The glass cover (1) is in contact with and covers one of the multiple layers of titanium dioxide (2), and one of the multiple layers of lanthanum oxide (3) is in contact with the external environment.
3. The novel anti-reflective coated cover plate according to claim 1, characterized in that, The number of layers of the lanthanum oxide layer (3) is the same as the number of layers of the titanium dioxide layer (2).
4. The novel anti-reflective coated cover plate according to claim 1, characterized in that, The lanthanum oxide layer (3) has three layers, and the titanium dioxide layer (2) has three layers.
5. A novel anti-reflective coated cover plate according to claim 1, characterized in that, The thickness of the multilayer lanthanum oxide layer (3) is 40 nanometers to 50 nanometers.
6. The novel anti-reflective coated cover plate according to claim 1, characterized in that, The thickness of the multilayer titanium dioxide layer (2) is 20 nanometers to 30 nanometers.
7. The novel anti-reflective coated cover plate according to claim 1, characterized in that, The thickness of the glass cover plate (1) is greater than that of the lanthanum oxide layer (3).
8. A novel anti-reflective coated cover plate according to claim 1, characterized in that, The alternating coverage of the multi-layered lanthanum oxide layer (3) and the multi-layered titanium dioxide layer (2) is such that one layer of lanthanum oxide layer (3) covers one layer of titanium dioxide layer (2), and the alternating coverage is performed in a cycle.
9. A novel anti-reflective coated cover plate according to claim 1, characterized in that, Multiple layers of lanthanum oxide (3) and multiple layers of titanium dioxide (2) are alternately covered. Along the direction from the glass cover plate (1) to the lanthanum oxide layer (3) in contact with the external environment, the surface area of the alternating multiple layers of lanthanum oxide (3) and multiple layers of titanium dioxide (2) gradually decreases.
10. A display device, characterized in that, The invention includes a novel anti-reflective coated cover plate as described in any one of claims 1-9.