Concealed diaphragm and display device
By designing light-transmitting raised and recessed structures in the hidden membrane, combined with micro-nano structures and a hardening layer, the problem of unrealistic touch sensation is solved, resulting in a better user experience and pattern layer brightness, adapting to more application scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- META CO LTD(CN)
- Filing Date
- 2025-07-23
- Publication Date
- 2026-08-04
AI Technical Summary
Existing hidden membranes do not provide a realistic tactile experience when there is no backlight, resulting in a poor user experience.
It employs a light-transmitting raised and recessed structure design, combined with micro-nano structures and a hardened layer, to form a hidden membrane. The patterned layer is located on the outside to enhance the tactile feel and brightness, while the hardened layer provides protection.
It improves the tactile realism of the hidden membrane and the brightness and clarity of the pattern layer, resulting in a better user experience and adaptability to more application scenarios.
Smart Images
Figure CN224595209U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hidden diaphragm technology, and in particular to a hidden diaphragm and display device. Background Technology
[0002] Existing hidden films with decorative textures contain a pattern layer and a hidden layer disposed on top of the pattern layer. When the hidden film is not backlit, it appears as a regular decorative pattern; when backlit, it exhibits high light transmittance, with light passing sequentially through the pattern layer and the hidden layer before exiting from the surface. Because the hidden layer covers the pattern layer, the tactile feel of the hidden film is unrealistic, resulting in a poor user experience and failing to meet user needs.
[0003] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content
[0004] In view of this, the present invention provides a hidden membrane that provides a more realistic touch, a better user experience, and better meets user needs.
[0005] A hidden film includes a base layer, a hidden layer, at least one pattern layer and a hardening layer stacked sequentially. The hidden layer includes light-transmitting protrusions, and recesses are formed between the protrusions. The recesses are filled with a first ink. The pattern layer has a printed pattern and / or a plurality of micro-nano structures.
[0006] Optionally, the micro-nano structures are formed on the surface of the patterned layer near the hardened layer, and the gaps between the plurality of micro-nano structures are filled with a second ink.
[0007] Optionally, a coating layer is provided on the surface of the micro / nano structure, and the coating layer is located between the second ink and the micro / nano structure.
[0008] Optionally, the cross-section of the micro / nano structure is any one or a combination of at least two of the following: sawtooth, rectangular, and arc-shaped.
[0009] Optionally, the hidden membrane includes at least two patterned layers stacked together, each patterned layer being located between the hidden layer and the hardened layer.
[0010] Optionally, the two patterned layers are defined as a first patterned layer and a second patterned layer, both of which are provided with the micro-nano structures. The cross-sectional shape of the micro-nano structure in the first patterned layer is different from that in the second patterned layer.
[0011] Optionally, the second ink color on the first pattern layer may be the same as or different from the second ink color on the second pattern layer.
[0012] Optionally, the two patterned layers are defined as a first patterned layer and a second patterned layer, wherein the first patterned layer has the micro-nano structure and the second patterned layer has the printed pattern.
[0013] Optionally, the concealed diaphragm includes at least one of the following:
[0014] The protruding structure is a cylinder or a polygonal prism;
[0015] The height of the protrusion structure is 5μm to 80μm;
[0016] The depth of the groove structure is 2μm to 5μm;
[0017] The height of the first ink is 90% to 100% of the height of the raised structure;
[0018] The period of the micro / nano structure is 1µm to 200µm;
[0019] The arrangement of the micro-nano structures is used to create light and shadow, relief, or dynamic effects.
[0020] This application also relates to a display device, including a display panel and the aforementioned hidden film, wherein the hidden film is disposed on the light-emitting surface of the display panel.
[0021] This utility model discloses a hidden film that is attached to a display module. When there is no backlight, only the pattern and effect on the pattern layer are displayed, while the pattern on the display module is not, thus providing a decorative effect. When backlight is applied, the pattern on the display module is displayed, adapting to more application scenarios. Furthermore, the hidden layer in this application is covered by both the pattern layer and the hardening layer, providing better protection for the structure on the hidden layer. Additionally, the pattern layer is positioned on top of the hidden layer. Compared to traditional structures where the hidden layer is on top of the pattern layer, where ambient light is partially blocked and then reflected by the pattern layer before reaching the eye, resulting in significantly reduced brightness, a blurred pattern, and ghosting, in this application, the pattern layer is on the outer side, allowing ambient light to be directly reflected onto the person, providing increased brightness and clarity. Simultaneously, the grainy texture of the hardening layer makes the hidden film feel more realistic, improving the user experience and better meeting user needs. Attached Figure Description
[0022] Figure 1 This is a cross-sectional structural diagram of the hidden diaphragm of this application.
[0023] Figure 2 This is a cross-sectional structural diagram of the pattern layer according to the first embodiment of this application.
[0024] Figure 3 yes Figure 2 The diagram shows a cross-sectional view of the micro / nano structure with a coating layer.
[0025] Figures 4 to 7 This is a schematic diagram of the micro / nano structure of this application with different cross-sectional shapes.
[0026] Figure 8 This is a cross-sectional structural diagram of the two patterned layers according to the second embodiment of this application.
[0027] Figure 9 yes Figure 8 The diagram shows a cross-sectional view of the micro / nano structure with a coating layer.
[0028] Figure 10 This is a cross-sectional structural diagram of the two patterned layers according to the third embodiment of this application.
[0029] Figure 11 yes Figure 10 The diagram shows a cross-sectional view of the micro / nano structure with a coating layer. Detailed Implementation
[0030] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.
[0031] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the present application. It should be understood that other embodiments may also be used, and changes in mechanical composition, structure, electrical and operational aspects may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting, and the terminology used herein is for describing particular embodiments only and is not intended to limit the present application.
[0032] Although the terms first, second, etc., are used in some instances to describe various elements herein, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.
[0033] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of a feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.
[0034] First Embodiment
[0035] Figure 1 This is a cross-sectional view of the hidden diaphragm structure of this application. Figure 2 This is a cross-sectional structural diagram of the pattern layer according to the first embodiment of this application, as shown below. Figure 1 and Figure 2 As shown, the hidden film 10 includes a base layer 11, a hidden layer 12, at least one pattern layer 13, and a hardening layer 14 stacked sequentially. The hidden layer 12 includes light-transmitting protrusions 121, with recesses formed between the protrusions 121. The recesses are filled with a first ink 122. The pattern layer 13 has a printed pattern and / or a plurality of micro-nano structures 131. The pattern layer 13 can be a printed pattern obtained by offset printing or gravure printing, such as a semi-transparent wood grain pattern or a technological pattern. The pattern layer 13 can also be formed by embossing to create micro-nano structures 131. The micro-nano structures 131 are used to produce light and shadow, relief, or dynamic effects. In this embodiment, the base layer 11 of the hidden film 10 is used to attach to the light-emitting surface of the display panel. When the hidden film 10 is not backlit, its appearance is similar to a decorative piece. The hidden film 10 can hide the display panel and has both decorative and light-transmitting properties. When the display panel needs to be operated, the display panel emits light to backlight the hidden film 10, and the pattern on the hidden film 10 is hidden, that is, the pattern on the hidden film 10 cannot be seen. When backlit, it appears to have high light transmittance, and the display panel can be operated at this time.
[0036] The hidden film 10 of this application is used to adhere to a display module (e.g., a display panel), enabling the display of only the pattern and effect on the pattern layer 13 when there is no backlight, without displaying the pattern on the display module, thus serving a decorative purpose; when backlight is applied, the pattern on the display module is displayed, adapting to more application scenarios. Furthermore, the hidden layer 12 of this application is covered by the pattern layer 13 and the hardening layer 14, providing better protection for the structure on the hidden layer 12. Additionally, the pattern layer 13 is positioned on the hidden layer 12. Compared to the traditional structure where the hidden layer 12 is positioned on the pattern layer 13, where ambient light is partially blocked when passing through the hidden layer 12 and then reflected by the pattern layer 13 into the human eye, resulting in significantly reduced brightness, a blurred pattern layer 13, and ghosting, in this application, the pattern layer 13 is on the outer side, allowing ambient light to be directly reflected into the user's eye, providing brightness and clarity to the pattern layer 13. Simultaneously, the grainy texture on the hardening layer 14 makes the hidden film 10 feel more realistic, improving the user experience and better meeting user needs.
[0037] Optionally, the base layer 11 is a colored or colorless transparent film made of PET, PMMA, PC, ABS, or PC+PMMA material.
[0038] Optionally, the first ink 122 is a semi-transparent ink that serves to block light.
[0039] Optionally, such as Figure 2 As shown, the pattern layer 13 can also be formed into micro / nano structures 131 by imprinting. The period of the micro / nano structures 131 is 1µm to 200µm, for example, 5µm, 10µm, 20µm, 30µm, 40µm, 50µm, 60µm, 70µm, 80µm, 90µm, 100µm, 110µm, 120µm, 130µm, 140µm, 150µm, 160µm, 170µm, 180µm, and 190µm. The micro / nano structures 131 are formed on the surface of the pattern layer 13 near the hardened layer 14, and the gaps between the plurality of micro / nano structures 131 are filled with a second ink 132, which is a light-transmitting ink.
[0040] Optionally, Figure 3 yes Figure 2 The schematic diagram shown is a cross-sectional view of the micro / nano structure with a coating layer. Figure 3 As shown, a coating layer 133 is disposed on the surface of the micro / nano structure 131, and the coating layer 133 is located between the second ink 132 and the micro / nano structure 131. In this embodiment, the coating layer 133 is used to prevent the filling of the groove of the micro / nano structure 131 by the second ink 132 from affecting the light and shadow effect, and the coating layer 133 is used to achieve the functions of brightening, enhancing transparency, and coloring the medium.
[0041] Optionally, the coating layer 133 is formed on the surface of the micro / nano structure 131 using a vapor deposition or vacuum sputtering process. The coating layer 133 is a dielectric layer or a light-transmitting metal layer; the coating layer 133 is made of materials such as a brightness enhancement film, an anti-reflection film, SiO2, indium, etc., but is not limited to these.
[0042] Optionally, the thickness of the coating layer 133 is 80nm to 260nm, for example, 90nm, 120nm, 140nm, 180nm, 200nm, or 240nm.
[0043] Optionally, Figures 4 to 7 This is a schematic diagram of the micro / nano structures of this application with different cross-sectional shapes. Please refer to it. Figures 4 to 7 The cross-section of the micro / nano structure 131 is any one or a combination of at least two of the following: sawtooth, rectangular, and arc-shaped, used to produce light and shadow, relief, or dynamic effects. In this embodiment, Figures 4 to 7 The cross-section of the micro / nano structure 131 shown is serrated (triangular). The apex angle, tilt direction, or angle of the serrations of the micro / nano structure 131 in each figure are different. Figure 5 The micro / nano structure 131 shown is used to produce a white platinum effect. Figure 6 The micro / nano structure 131 shown is used to produce a rainbow laser effect.
[0044] Optionally, the protrusion 121 is transparent and can transmit light; the protrusion 121 is a cylinder or a polygonal prism.
[0045] Optionally, the height of the protrusion structure 121 is 5μm to 80μm, for example, 10μm, 15μm, 20μm, 25μm, 30μm, 40μm, 50μm, 60μm, or 70μm.
[0046] Optionally, the depth of the groove structure is 2μm to 5μm, for example, 2.5μm, 3μm, 3.5μm, 4μm, or 4.5μm.
[0047] Optionally, the height of the first ink 122 is 90% to 100% of the height of the raised structure 121.
[0048] Optionally, the pattern layer 13 can be a printed pattern obtained by offset printing or gravure printing, such as a semi-transparent wood grain pattern, a technological pattern, etc., and the pattern layer 13 exhibits a semi-transparent effect; the thickness of the pattern layer 13 is 0.5μm to 2μm, for example, 0.8μm, 1.0μm, 1.2μm, 1.4μm, 1.8μm.
[0049] Optionally, the hardened layer 14 has a glossy or matte finish, and the haze value can be changed by adding an additive, preferably 20% to 40%; at the same time, due to the addition of the additive, the hardened layer has a certain grainy texture.
[0050] Optionally, the degree of hardening of the hardened layer 14 varies depending on the material. Under a pencil hardness test with a 500g load, for example, the hardness of the hardened layer 14 made of PC material can reach F, and the hardness of the hardened layer 14 made of PMMA material can reach 3H or higher.
[0051] Second Embodiment
[0052] Figure 8 This is a cross-sectional structural diagram of the two patterned layers according to the second embodiment of this application, as shown below. Figure 8 As shown, the hidden membrane 10 of this embodiment is largely the same as the hidden membrane 10 of the first embodiment, except that the number of pattern layers 13 is different. In this embodiment, the hidden membrane 10 includes at least two pattern layers 13 stacked together, each pattern layer 13 being located between the hidden layer 12 and the hardening layer 14.
[0053] Optionally, such as Figure 8 As shown, two patterned layers 13 are defined as a first patterned layer 13a and a second patterned layer 13b, respectively. Both the first patterned layer 13a and the second patterned layer 13b are provided with micro-nano structures 131. The cross-sectional shape of the micro-nano structure 131 of the first patterned layer 13a is different from that of the micro-nano structure 131 of the second patterned layer 13b. For example, the cross-section of the micro-nano structure 131 of the first patterned layer 13a is serrated, while the cross-section of the micro-nano structure 131 of the second patterned layer 13b is rectangular or arc-shaped.
[0054] Optionally, the color of the second ink 132 on the first pattern layer 13a may be the same as or different from the color of the second ink 132 on the second pattern layer 13b. For example, the color of the second ink 132 on the first pattern layer 13a may be yellow, and the color of the second ink 132 on the second pattern layer 13b may be red.
[0055] Optionally, Figure 9 yes Figure 8 The schematic diagram shown is a cross-sectional view of the micro / nano structure with a coating layer. Figure 9 As shown, the coating layer 133 on the surface of the micro / nano structure 131 is conformally arranged, that is, the shape of the coating layer 133 is the same as the shape of the micro / nano structure 131.
[0056] Third Embodiment
[0057] Figure 10 This is a cross-sectional structural diagram of the two patterned layers according to the third embodiment of this application, as shown below. Figure 10 As shown, the hidden membrane 10 of this embodiment is largely the same as the hidden membrane 10 of the second embodiment, except that the first pattern layer 13a is provided with a micro-nano structure 131 and the second pattern layer 13b is provided with a printed pattern.
[0058] Optionally, Figure 11 yes Figure 10 The schematic diagram shown is a cross-sectional view of the micro / nano structure with a coating layer. Figure 11 As shown, the coating layer 133 on the surface of the micro / nano structure 131 is conformally arranged, that is, the shape of the coating layer 133 is the same as the shape of the micro / nano structure 131.
[0059] Fourth embodiment
[0060] This application also relates to a display device including the aforementioned hidden film 10, which is disposed on the light-emitting surface of the display panel. In this embodiment, the display device is used in a vehicle, for example as a central control display device, but is not limited thereto.
[0061] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention. The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not further describe the various possible combinations.
Claims
1. A concealed diaphragm, characterized in that, The method includes a base layer, a hidden layer, at least one pattern layer and a hardening layer stacked in sequence. The hidden layer includes light-transmitting raised structures, and recessed structures are formed between the raised structures. The recessed structures are filled with a first ink. The pattern layer is provided with a printed pattern and / or a plurality of micro-nano structures.
2. The concealed diaphragm as described in claim 1, characterized in that, The micro-nano structures are formed on the surface of the patterned layer near the hardened layer, and the gaps between the plurality of micro-nano structures are filled with a second ink.
3. The concealed diaphragm as described in claim 2, characterized in that, The surface of the micro / nano structure is provided with a coating layer, which is located between the second ink and the micro / nano structure.
4. The concealed diaphragm as described in claim 3, characterized in that, The cross-section of the micro / nano structure is any one of the following, or a combination of at least two: sawtooth, rectangular, and arc-shaped.
5. The concealed diaphragm as described in claim 4, characterized in that, The hidden membrane includes at least two patterned layers stacked together, with each patterned layer located between the hidden layer and the hardened layer.
6. The concealed diaphragm as described in claim 5, characterized in that, The two patterned layers are defined as a first patterned layer and a second patterned layer. Both the first patterned layer and the second patterned layer are provided with the micro-nano structures. The cross-sectional shape of the micro-nano structures in the first patterned layer is different from that in the second patterned layer.
7. The concealed diaphragm as described in claim 6, characterized in that, The second ink color on the first pattern layer may be the same as or different from the second ink color on the second pattern layer.
8. The concealed diaphragm as described in claim 5, characterized in that, The two patterned layers are defined as a first patterned layer and a second patterned layer, wherein the first patterned layer has the micro-nano structure and the second patterned layer has the printed pattern.
9. The concealed diaphragm as described in any one of claims 1 to 8, characterized in that, Includes at least one of the following: The protruding structure is a cylinder or a polygonal prism; The height of the protrusion structure is 5μm to 80μm; The depth of the groove structure is 2μm to 5μm; The height of the first ink is 90% to 100% of the height of the raised structure; The period of the micro / nano structure is 1µm to 200µm; The arrangement of the micro-nano structures is used to create light and shadow, relief, or dynamic effects.
10. A display device, characterized in that, It includes a display panel and a hidden film as described in any one of claims 1 to 9, wherein the hidden film is disposed on the light-emitting surface of the display panel.