Cover plate, touch display screen and electronic device
By setting multiple anti-reflective layers, especially Nb2O5, TiN and SiO2 layers, on the cover of the vehicle's central control screen, and optimizing the thickness and structure, the problem of high reflectivity of traditional vehicle central control screens is solved, and a better integrated black display effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN LAIBAO HI TECH
- Filing Date
- 2024-12-03
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional in-vehicle central control screens have high reflectivity when the screen is off, making it impossible to achieve a seamless black effect. Existing AR materials are also unable to meet the requirement of a reflectivity of less than 1%.
By setting multiple anti-reflective layers, including Nb2O5, TiN and SiO2 layers, on the substrate surface of the cover plate, the film thickness and structure are optimized to enhance the light absorption effect and achieve an integrated black display.
Reduce the reflectivity of the screen assembly, improve the screen's seamless black effect, and meet the requirement for even lower reflectivity.
Smart Images
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Abstract
Description
Technical Field
[0001] This invention relates to the field of touch display technology, and more particularly to a cover plate, a touch display screen, and an electronic device. Background Technology
[0002] As a crucial medium for human-vehicle interaction, in-vehicle central control screens have become a key development focus with the rapid development of new energy vehicles. However, the functions of traditional in-vehicle central control screens are increasingly failing to meet consumer demands. Consumers are seeking better screen display effects and a more seamless black effect when the screen is off. The seamless black effect is related to screen reflectivity; a lower reflectivity in the screen assembly results in a better seamless black effect. Conventional in-vehicle central control screens, after AR coating and full lamination, generally have an assembly reflectivity greater than 1.5%. Currently, to achieve a better seamless black effect, the assembly reflectivity must be less than 1%, a requirement that current conventional AR materials cannot meet. Summary of the Invention
[0003] The present invention aims to solve at least one problem in the prior art. To this end, the present invention proposes a cover plate, a touch display screen, and an electronic device, wherein the touch display screen achieves a good integrated black effect by reasonably setting the film layer of the cover plate.
[0004] According to a first aspect of the present invention, a cover plate includes a substrate having opposing first and second surfaces. A first antireflective layer is disposed on the first surface of the substrate, the first antireflective layer comprising an Nb₂O₅ layer, a TiN layer, and a SiO₂ layer. By rationally configuring the composition of the antireflective layer, it can absorb backlight and other light, thereby ultimately achieving a seamless black display effect.
[0005] According to another embodiment of the present invention, the thickness of the Nb2O5 layer ranges from 5 to 10 nm, the thickness of the TiN layer ranges from 5 to 20 nm, and the thickness of the SiO2 layer ranges from 50 to 100 nm.
[0006] According to another embodiment of the present invention, a second antireflection layer is disposed on the first surface of the substrate, the second antireflection layer comprising at least two alternately disposed Si3N4 layers and SiO2 layers.
[0007] According to another embodiment of the present invention, the antireflection layer includes a first Si3N4 layer, a first SiO2 layer, a second Si3N4 layer, a second SiO2 layer, a third Si3N4 layer, and a third SiO2 layer disposed sequentially.
[0008] According to another embodiment of the present invention, the thickness of the first Si3N4 layer is in the range of 10-30 nm, the thickness of the second Si3N4 layer is in the range of 50-80 nm, and the thickness of the third Si3N4 layer is in the range of 10-50 nm.
[0009] According to another embodiment of the present invention, the thickness of the first SiO2 layer is in the range of 20-60 nm, the thickness of the second SiO2 layer is in the range of 0-20 nm, and the thickness of the third SiO2 layer is in the range of 50-150 nm.
[0010] According to another embodiment of the present invention, the second antireflection layer is disposed on the first antireflection layer.
[0011] According to another embodiment of the present invention, the second antireflection layer is disposed in a continuous layer with the first antireflection layer, and the second antireflection layer is disposed outside the first antireflection layer.
[0012] A touch display screen according to a second aspect of the present invention includes a cover plate, a touch module and a display module, wherein the cover plate is any of the cover plates described above.
[0013] An electronic device according to a second aspect of the present invention includes any of the above-described touch displays.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] This invention discloses a cover plate, a touch display screen, and an electronic device. The cover plate includes a substrate with opposing first and second surfaces. A first antireflective layer is disposed on the first surface of the substrate, which includes an Nb2O5 layer, a TiN layer, and a SiO2 layer. The touch display screen includes the cover plate, a touch module, and a display module. By setting the film layer of the cover plate structure, the touch display screen of this solution can absorb some of the light from the display module, thereby reducing the reflectivity of the screen assembly and reducing the impact of the display module on the integrated black effect.
[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0018] Figure 1 A schematic diagram of an embodiment of the cover plate provided in this application;
[0019] Figure 2 A schematic diagram of another embodiment of the cover plate provided in this application;
[0020] Figure 3 A schematic diagram of an embodiment of the second antireflective layer of the cover plate provided in this application;
[0021] Figure 4 A schematic diagram of an embodiment of the touch display screen provided in this application;
[0022] Figure 5 A schematic diagram of another embodiment of the touch display screen provided in this application;
[0023] Figure 6 Schematic diagram of an embodiment of the electronic device provided in this application;
[0024] The markings in the diagram mean:
[0025] 1. Electronic devices;
[0026] 10. Touchscreen display;
[0027] 100. Cover plate; 110. Substrate; 111. First surface; 112. Second surface;
[0028] 120. First antireflective layer; 121. Nb₂O₅ layer; 122. TiN layer; 123. SiO₂ layer;
[0029] 130. Second antireflection layer; 131. Si3N4 layer; 1311. First Si3N4 layer;
[0030] 1312, Second Si3N4 layer; 1313, Third Si3N4 layer; 132, SiO2 layer;
[0031] 1321, First SiO2 layer; 1322, Second SiO2 layer; 1323, Third SiO2 layer;
[0032] 200. Touch module;
[0033] 300. Display module. Detailed Implementation
[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0035] In the description of this invention, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.
[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0037] To illustrate the cover plate, touch screen, and electronic device provided in this application, the following detailed description is provided in conjunction with the accompanying drawings and textual descriptions of the embodiments.
[0038] The following is for reference. Figures 1-3 The cover plate 100 according to a first aspect embodiment of the present invention is described. Specifically, the cover plate 100 includes a substrate 110, the substrate 110 having a first surface 111 and a second surface 112 opposite to each other. Further, a first antireflection layer 120 is disposed on the first surface 111 of the substrate 110. Specifically, the first antireflection layer 120 includes an Nb2O5 layer 121, a TiN layer and a SiO2 layer 132. By reasonably setting the composition of the antireflection layer, the cover plate 100 can absorb light such as backlight, thereby ultimately achieving a black display effect of the screen.
[0039] It should be noted that the first antireflection layer 120 includes one or more Nb2O5 layers 121, TiN layers, and SiO2 layers 132. For example, the first antireflection layer 120 includes one Nb2O5 layer 121, one TiN layer, and one SiO2 layer 132; or, the first antireflection layer 120 includes two Nb2O5 layers 121, two TiN layers, and two SiO2 layers 132. In this case, the film layer stacking is Nb2O5 layer 121, TiN layer, SiO2 layer 132, Nb2O5 layer 121, TiN layer, and SiO2 layer 132; or, the first antireflection layer 120 includes multiple Nb2O5 layers 121, multiple TiN layers, and multiple SiO2 layers 132. In this case, the film layer stacking method is to continuously stack Nb2O5 layer 121, TiN layer, and SiO2 layer 132 in that order.
[0040] It should be noted that the substrate 110 can be a glass substrate 110 or other materials that meet the requirements for hardness and transparency.
[0041] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the thickness of the Nb2O5 layer 121 ranges from 5 to 10 nm, the thickness of the TiN layer 122 ranges from 5 to 20 nm, and the thickness of the SiO2 layer 123 ranges from 50 to 100 nm. By reasonably setting the thicknesses of the Nb2O5 layer 121, the TiN layer 122, and the SiO2 layer 123, the light absorption effect of the film stack can be effectively achieved.
[0042] It should be noted that the thicknesses of the Nb₂O₅ layer 121, TiN layer 122, and SiO₂ layer 123 are related to the number of Nb₂O₅ layer 121, TiN layer 122, and SiO₂ layer 123. When the number of each of the three layers is one, the thicknesses of the Nb₂O₅ layer 121, TiN layer 122, and SiO₂ layer 123 range from 5-10 nm, 5-20 nm, and 50-100 nm, respectively. When there are two Nb2O5 layers 121, TiN layers 122, and SiO2 layers 123, the thickness of each of these layers ranges from 2.5-5nm, 2.5-10nm, and 25-50nm, respectively. In other words, the total thickness of the Nb2O5 layers 121, TiN layers 122, and SiO2 layers 123 ranges from 60-1300nm, which yields the best overall performance.
[0043] According to one embodiment of the present invention, such as Figure 2 As shown, a second antireflection layer 130 is provided on the first surface 111 of the substrate 110. Specifically, the second antireflection layer 130 includes at least two alternately arranged Si3N4 layers 131 and SiO2 layers 132. The arrangement of Si3N4 layers 131 and SiO2 layers 132 can enhance the light absorption effect.
[0044] It should be noted that, in order to enhance the overall absorption effect, two different anti-reflective layers can be set up. By superimposing the effects of the different anti-reflective layers, a better light absorption effect can be achieved in the end.
[0045] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the second antireflection layer 130 is disposed on the first antireflection layer 120. That is, the first antireflection layer 120 is directly disposed on the first surface 111 of the substrate 110, and the second antireflection layer 130 is disposed on the side surface of the first antireflection layer 120 away from the first surface 111 of the substrate 110.
[0046] According to one embodiment of the present invention, the second antireflection layer 130 is disposed in a continuous layer with the first antireflection layer 120, and the second antireflection layer 130 is disposed outside the first antireflection layer 120. That is, both the first antireflection layer 120 and the second antireflection layer 130 are directly disposed on the first surface 111 of the substrate 110. By disposing the second antireflection layer 130 outside the first antireflection layer 120, the second antireflection layer 130 can absorb light from the edges.
[0047] According to one embodiment of the present invention, such as Figure 3 As shown, the antireflection layer includes a first Si3N4 layer 1131, a first SiO2 layer 1321, a second Si3N4 layer 1132, a second SiO2 layer 1322, a third Si3N4 layer 1313, and a third SiO2 layer 1323 arranged sequentially. It can be understood that by stacking the first Si3N4 layer 1131 and the first SiO2 layer 1321 three times in sequence, the film layer stacking produces the effect of absorbing light.
[0048] It should be noted that in some other embodiments, the number of Si3N4 layer 131 and SiO2 layer 132 can also be increased or decreased according to different application scenarios to meet specific application scenarios.
[0049] According to one embodiment of the present invention, such as Figure 3 As shown, the thickness of the first Si3N4 layer 1131 ranges from 10 to 30 nm, the thickness of the second Si3N4 layer 1132 ranges from 50 to 80 nm, and the thickness of the third Si3N4 layer 1313 ranges from 10 to 50 nm. It can be understood that, based on simulation data analysis, by setting the different thicknesses of the Si3N4 layers 131 as described above, the light absorption effect after the film layers are stacked can be improved.
[0050] According to one embodiment of the present invention, such as Figure 3 As shown, the thickness of the first SiO2 layer 1321 ranges from 20 to 60 nm, the thickness of the second SiO2 layer 1322 ranges from 0 to 20 nm, and the thickness of the third SiO2 layer 1323 ranges from 50 to 150 nm. It can be understood that, based on simulation data analysis, by setting the different SiO2 layers 132 to the above-mentioned different thicknesses, the effect of light absorption after film stacking can be improved.
[0051] The following is for reference. Figure 4 and Figure 5A touch display screen 10 according to a second aspect embodiment of the present invention is described. The touch display screen 10 includes a touch module 200 and a display module 300. The touch display screen 10 also includes a cover plate 100 located on the side of the touch module 200 away from the display module 300. One side of the touch module 200 is bonded to the cover plate 100 through a first optical adhesive layer (not shown in the figure), and the other side of the touch module 200 is bonded to the display module 300 through a second optical adhesive layer (not shown in the figure). Specifically, the cover plate 100 includes a substrate 1. 10. The substrate 110 has a first surface 111 and a second surface 112. Further, the first surface 111 of the substrate 110 is provided with a first antireflection layer 120. Specifically, the first antireflection layer 120 includes an Nb2O5 layer 121, a TiN layer and a SiO2 layer 132. This solution, by reasonably setting the composition of the antireflection layer, enables the cover plate 100 to absorb the light emitted by the display module 300, thereby ultimately achieving the integrated black display effect of the touch display screen 10.
[0052] The following is for reference. Figure 6 An electronic device 1 according to an embodiment of a third aspect of the present invention is described, such as... Figure 6 As shown, the electronic device 1 includes a touch display screen 10, which includes a touch module 200 and a display module 300. The touch display screen 10 also includes a cover plate 100 located on the side of the touch module 200 away from the display module 300. By reasonably setting the composition of the anti-reflective layer, the cover plate 100 can absorb the light emitted by the display module 300, thereby ultimately achieving a seamless black display effect on the touch display screen 10.
[0053] It should be noted that electronic device 1 can be a laptop computer, tablet computer, in-vehicle central control screen, or medical device display screen, etc.
[0054] The cover plate, touch screen, and electronic device provided in this application are preferred embodiments and should not be construed as limiting the scope of protection of this application. Those skilled in the art should know that various improvements or substitutions can be made without departing from the concept of this application, and all improvements or substitutions should be within the scope of protection of this application, that is, the scope of protection of this application should be determined by the claims.
[0055] Where there is no conflict, the above embodiments and features described herein can be combined with each other.
Claims
1. A cover plate, characterized in that, The substrate includes a substrate having a first surface and a second surface opposite to each other. The first surface of the substrate is provided with a first antireflection layer, which includes an Nb2O5 layer, a TiN layer and a SiO2 layer.
2. The cover plate as described in claim 1, characterized in that, The thickness of the Nb2O5 layer ranges from 5 to 10 nm, the thickness of the TiN layer ranges from 5 to 20 nm, and the thickness of the SiO2 layer ranges from 50 to 100 nm.
3. The cover plate as described in claim 1, characterized in that, The first surface of the substrate is provided with a second antireflection layer, which includes at least two alternating Si3N4 layers and SiO2 layers.
4. The cover plate as described in claim 3, characterized in that, The antireflection layer comprises a first Si3N4 layer, a first SiO2 layer, a second Si3N4 layer, a second SiO2 layer, a third Si3N4 layer, and a third SiO2 layer arranged sequentially.
5. The cover plate as described in claim 3, characterized in that, The thickness of the first Si3N4 layer ranges from 10 to 30 nm, the thickness of the second Si3N4 layer ranges from 50 to 80 nm, and the thickness of the third Si3N4 layer ranges from 10 to 50 nm.
6. The cover plate as described in claim 3, characterized in that, The thickness of the first SiO2 layer ranges from 20 to 60 nm, the thickness of the second SiO2 layer ranges from 0 to 20 nm, and the thickness of the third SiO2 layer ranges from 50 to 150 nm.
7. The cover plate as described in claim 3, characterized in that, The second antireflection layer is disposed on the first antireflection layer.
8. The cover plate as described in claim 3, characterized in that, The second antireflection layer is disposed in a continuous layer with the first antireflection layer, and the second antireflection layer is disposed outside the first antireflection layer.
9. A touch display screen, characterized in that, It includes a cover plate, a touch module, and a display module, wherein the cover plate is any one of the cover plates described in claims 1-8.
10. An electronic device, characterized in that, Including the touch display screen as described in claim 9.