WO2025246733A1 - 膜片、盖板及电子设备 - Google Patents
膜片、盖板及电子设备Info
- Publication number
- WO2025246733A1 WO2025246733A1 PCT/CN2025/090290 CN2025090290W WO2025246733A1 WO 2025246733 A1 WO2025246733 A1 WO 2025246733A1 CN 2025090290 W CN2025090290 W CN 2025090290W WO 2025246733 A1 WO2025246733 A1 WO 2025246733A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- texture
- protruding
- diaphragm
- textured
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
Definitions
- This application relates to the field of electronic device technology, and in particular to a diaphragm, a cover plate, and an electronic device.
- two texture layers can be set on electronic devices.
- the superposition of the two texture layers can produce the Moore effect, which can then form an interference texture pattern with varied light and shadow.
- This application provides a diaphragm, a cover plate, and an electronic device, which can improve the brightness and gloss of the diaphragm with a light and shadow effect, and can make the diaphragm with a light and shadow effect produce a strong metallic texture.
- a first aspect of this application provides a diaphragm comprising a carrier layer, a first textured layer, and a second textured layer.
- the carrier layer has a first side surface and a second side surface, which are located on opposite sides of the carrier layer in its thickness direction.
- the first textured layer is disposed on the first side surface, and the second textured layer is disposed on the second side surface.
- the first textured layer includes a first protrusion structure protruding away from the carrier layer, the first protrusion structure being used to form a first texture pattern.
- the second textured layer is used to form a second texture pattern, and the first texture pattern and the second texture pattern are superimposed to form an interference texture pattern.
- the first protrusion structure includes a first protruding surface protruding from the first side surface, the first protruding surface including a plurality of reflective surfaces, the reflective surfaces being used to reflect light incident from the carrier layer onto the reflective surfaces, and at least one reflective surface being planar.
- the diaphragm provided in this application embodiment has parallel light rays incident on the first raised surface that are reflected at the plane of the first raised surface, resulting in reflected light rays with the same direction of incidence. This produces a strong specular reflection effect, allowing the user to see a higher brightness and gloss of the diaphragm at the corresponding viewing angle, thereby giving the diaphragm a strong metallic texture.
- At least one plane is inclined relative to the first side surface. This facilitates the arrangement of multiple reflective surfaces of the first protruding surface in the optical path of light rays entering the first protruding structure from the support layer.
- multiple reflective surfaces are arranged in the optical path of light rays entering the first protruding structure from the support layer, multiple reflected rays with different directions can be formed through reflection from the first protruding surface, so as to achieve a variety of light and shadow effects.
- the first protrusion structure is a convex polyhedron structure. This facilitates the formation of interference texture patterns with high brightness and gloss from multiple different viewing angles.
- the first raised surface is composed of multiple planes, each of which is inclined relative to the first side surface. This results in a better light-gathering effect on the first raised surface, allowing more reflected light to enter the user's field of vision, thus producing a higher brightness and gloss of the formed interference texture pattern.
- At least one reflecting surface is curved. This allows for greater variation in the formed first texture pattern, which in turn allows for greater variation in the formed interference texture pattern, resulting in more diverse changes to the diaphragm from different viewing angles.
- the first protrusion structure further includes a connecting surface connected to the first side surface, wherein the projection of the first protrusion surface along the thickness direction of the bearing layer lies within the projection of the connecting surface along the thickness direction of the bearing layer. This makes it easier to form the first protrusion structure on the first side surface.
- the area enclosed by the contour of the first protruding surface gradually decreases from the end closer to the support layer to the end farther away from the support layer.
- each surface of the first protruding surface can effectively reflect light incident from the support layer into the first protruding structure, facilitating the achievement of varied light and shadow effects.
- a larger amount of reflected light from the first protruding surface can enter the user's field of vision, resulting in a higher brightness and gloss of the formed interference texture pattern.
- the normals at the centers of all reflecting surfaces intersect at the same intersection point.
- the distance between this intersection point and the end of the first protrusion structure furthest from the support layer is L
- the distance between the end of the first protrusion structure furthest from the support layer and the support layer is H1
- the diaphragm further includes a first coating layer.
- a first textured layer is located between the carrier layer and the first coating layer, with a first raised surface in contact with the first coating layer.
- the refractive index of the first coating layer differs from that of the first raised structure. This results in better reflection at the first raised surface, leading to higher gloss and brightness, and a stronger metallic appearance. Furthermore, it makes the formed first texture pattern clearer, allowing for more pronounced changes in the interference texture pattern under different viewing angles. Additionally, the first coating layer can also be used to alter the appearance of the interference texture pattern.
- the film further includes an ink layer.
- the ink layer is located on the side of the first coating layer away from the carrier layer, and is disposed on the surface of the first coating layer.
- the ink layer can be used to add background colors, patterns, or other aesthetic effects to the film, allowing for a richer range of visual effects.
- the superposition of the ink layer and the first coating layer can provide an even more diverse range of aesthetic effects.
- the diaphragm further includes an ink layer.
- a first textured layer is located between the carrier layer and the ink layer, and the first raised surface is in contact with the ink layer.
- the ink layer can be used to add background colors, patterns, and other aesthetic effects to the diaphragm, allowing for a richer range of visual effects.
- the ink layer can make the interface at the first raised surface clear, resulting in higher gloss and brightness, a stronger metallic texture, and more pronounced changes in the interference texture pattern formed under different viewing angles.
- the thickness of the diaphragm can be reduced, simplifying the diaphragm manufacturing process and lowering costs.
- the second texture layer includes a shading structure for forming a second texture pattern. This allows the second texture pattern to be formed by irradiating the shading structure with reflected light from the first raised surface, thus imposing fewer restrictions on the structure of the second texture layer.
- the second texture layer includes a second protrusion structure projecting away from the support layer, the second protrusion structure being used to form a second texture pattern.
- the second protrusion structure includes a second protruding surface protruding from a second side surface, the second protruding surface being used to refract light rays incident from the support layer onto the second protruding surface.
- the second protrusion structure can be the same as the first protrusion structure, or it can be different from the first protrusion structure.
- the second protruding surface may include one or more planes, or the second protruding surface of the second protruding structure may include one or more planes and one or more curved surfaces.
- the second protruding surface can be a curved surface.
- the diaphragm further includes a second coating layer.
- a second textured layer is located between the carrier layer and the second coating layer, with the second raised surface in contact with the second coating layer.
- the refractive index of the second coating layer differs from that of the second raised structure.
- the second coating layer clarifies the interface at the second raised surface, improving the clarity of the formed second texture pattern and making the interference texture pattern appear more distinct from different viewing angles.
- the second coating layer can also alter the appearance of the formed interference texture pattern. Additionally, it reduces the limitations on the selection of the transparent adhesive layer, allowing the use of a transparent adhesive layer with a refractive index similar to or the same as that of the second raised structure to bond the diaphragm.
- the second texture layer includes an optical metasurface structure used to form the second texture pattern.
- the second texture pattern can be formed by the refraction of light through the optical metasurface structure, resulting in a richer second texture pattern and consequently a richer interference texture pattern.
- the second texture layer includes a Fabry-Perot resonant cavity structure used to form the second texture pattern.
- the second texture pattern can be formed by the resonance of light through the Fabry-Perot resonant cavity structure, facilitating control over the formed second texture pattern.
- a second aspect of this application provides a cover plate comprising a film as described in any of the above embodiments and a light-transmitting substrate.
- the film is disposed on the inner surface of the substrate, and a second textured layer of the film is located between the substrate and the carrier layer of the film.
- a third aspect of this application provides an electronic device that includes the cover plate described in any of the above embodiments.
- Figure 1 is a schematic diagram of an electronic device provided in an embodiment of this application.
- Figure 2 is a schematic diagram of a display screen of an electronic device provided in an embodiment of this application.
- Figure 3 is a schematic diagram of the back cover of an electronic device provided in an embodiment of this application.
- Figure 4 is a schematic diagram of a cover plate provided in an embodiment of this application.
- FIG. 5 is a schematic diagram of another cover plate provided in an embodiment of this application.
- Figure 6 is a schematic diagram of the bearing layer and the first texture layer of the cover plate provided in Figure 5;
- Figure 7 shows the cover plate provided in Figure 5 from a first-view perspective
- Figure 8 shows the cover plate provided in Figure 5 from a second perspective
- Figure 9 is a schematic diagram of a diaphragm provided in an embodiment of this application.
- Figure 10 is a schematic diagram of another type of diaphragm provided in an embodiment of this application.
- Figure 11 is a schematic diagram of the bearing layer and the first texture layer of another cover plate provided in an embodiment of this application;
- Figure 12 is a schematic diagram of a first texture layer on a first side surface provided in an embodiment of this application.
- Figure 13 is a schematic diagram of another first texture layer on a first side surface provided in an embodiment of this application.
- Figure 14 is a schematic diagram of the bearing layer and the first texture layer of another cover plate provided in an embodiment of this application;
- Figure 15 is a schematic diagram of the bearing layer and the first texture layer of another cover plate provided in an embodiment of this application;
- Figure 16 is a schematic diagram of the bearing layer and the first texture layer of another cover plate provided in an embodiment of this application;
- FIG. 17 is a schematic diagram of another cover plate provided in an embodiment of this application.
- Figure 18 is a schematic diagram of another cover plate provided in an embodiment of this application.
- Figure 19 is a schematic diagram of another cover plate provided in an embodiment of this application.
- Second side surface; 420 First texture layer; 421, First raised structure; 4211a, First plane; 4211b, Second plane; 4211c, Third plane; 4211d, Fourth plane; 4211e, Fifth plane; 4211f, Sixth plane; 4211g, Seventh plane; 4211h, Eighth plane; 4212, Connecting surface; 4213a, First surface; 4213b, Second surface; 4213c, Third surface; 4213d, Fourth surface; 430. Second texture layer; 431. Coloring structure; 432. Substrate structure; 433.
- Second raised structure 440, First coating layer; 450, Ink layer; 460, Protective layer; 470, Transparent adhesive layer; 480, Release film; 490, Second coating layer; P, intersection of normals; H1, distance between the end of the first protrusion furthest from the load-bearing layer and the load-bearing layer; H2, thickness of the load-bearing layer; L, The distance between the intersection of the normals and the end of the first protrusion structure furthest from the load-bearing layer.
- This application provides an electronic device, which may include, but is not limited to, mobile phones, tablets, laptops, ultra-mobile personal computers (UMPCs), handheld computers, walkie-talkies, netbooks, point-of-sales (POS) machines, personal digital assistants (PDAs), wearable devices, virtual reality devices, and televisions.
- UMPCs ultra-mobile personal computers
- POS point-of-sales
- PDAs personal digital assistants
- wearable devices wearable devices
- virtual reality devices and televisions.
- the electronic device may include a housing 200, which is used to enclose a device mounting cavity, which can be used to accommodate electronic devices such as motherboards and chips.
- the electronic device may also include a display screen 100, which may be disposed on one side of the housing 200 in the thickness direction.
- the display screen 100 may be used to cover the opening of the device mounting cavity on one side of the housing 200 in the thickness direction.
- the display screen 100 can be attached to the housing 200.
- the housing 200 may include a base housing 210 and a rear cover 220.
- the rear cover 220 and the display screen 100 are respectively disposed on opposite sides of the base housing 210.
- the base housing 210 and the rear cover 220 are used to enclose and form a device mounting cavity.
- the base shell 210 can be the border or mid-frame of an electronic device.
- the base shell 210 and the back cover 220 can be an integral structure.
- the base shell 210 and the back cover 220 can be separate structures, and the back cover 220 can be attached to the base shell 210 by at least one method such as adhesive, snap-fit, or fastener connection.
- Figure 2 is a schematic diagram of a display screen of an electronic device provided in an embodiment of this application.
- the display screen 100 may include a front cover 110 and a display module 120.
- the front cover 110 may be attached to the base shell 210.
- the front cover 110 may be used to cover the opening of the device mounting cavity on one side of the shell 200 in the thickness direction.
- the display module 120 is disposed inside the front cover 110.
- the display module 120 is used to form a display image.
- the front cover 110 is located on the light-emitting side of the display module 120.
- the front cover 110 can isolate the display module 120 from the outside world and protect the display module 120, so that the display module 120 is not easily damaged by touching external objects.
- the front cover 110 includes a display area 111, which is a light-transmitting area, and the image formed by the display module 120 can be displayed through the display area 111.
- the front cover 110 may also include a non-display area 112 located around the display area 111, which may be used to shield some devices inside the front cover 110.
- the front cover 110 may not include the non-display area 112, and the entire front cover 110 may be the display area 111.
- Figure 3 is a schematic diagram of the back cover of an electronic device provided in an embodiment of this application.
- the back cover 220 may include a base cover 221 and a surface plate 222.
- One side of the base cover 221 in the thickness direction is connected to the base shell 210, and the surface plate 222 is disposed on the other side of the base cover 221 in the thickness direction.
- the base shell 210 and the base cover 221 are used to enclose the forming device mounting cavity.
- the base shell 210 and the base cover 221 are an integral structure.
- the base cover 221 can be mounted on the base shell 210 by at least one method such as bonding, snap-fitting, or fastener connection.
- the surface panel 222 can be adhered to the base cover 221.
- adhesive can be provided at the edge of the surface panel 222, and the surface panel 222 can be adhered to the base cover 221 by the adhesive provided at the edge.
- Figure 4 is a schematic diagram of a cover plate provided in an embodiment of this application.
- this application provides a cover plate, which is located on the outer surface of the electronic device.
- the outer surface of an electronic device refers to the surface of the electronic device that the user can directly touch.
- the cover plate includes a diaphragm 400 and a light-transmitting substrate 300, with the diaphragm 400 disposed on the inner surface of the substrate 300.
- the diaphragm 400 is used to form textured patterns.
- the textured patterns formed by the diaphragm 400 can be projected into the user's eyes through the substrate 300, thereby improving the appearance of the electronic device.
- the substrate 300 can support the diaphragm 400 and protect the diaphragm 400 disposed on the inner surface of the substrate 300.
- the cover plate When the cover plate is the front cover 110, the cover plate includes a display area 111 and a non-display area 112.
- the film 400 is disposed in the non-display area 112, and the substrate 300 is covered on the base shell 210.
- the substrate 300 can be bonded and fixed to the base shell 210.
- cover plate is a surface plate 222
- adhesive can be provided on the edge of the substrate 300, and the substrate 300 can be bonded to the base cover 221 by the adhesive provided on the edge.
- the rear cover 220 may include a base cover 221 and a surface plate 222.
- the substrate 300 may be bonded to the base cover 221 of the rear cover 220, and the base cover 221 is fixedly connected to the base shell 210.
- the rear cover 220 may also include a surface plate 222 but not a base cover 221, and the edge of the substrate 300 may be fixedly connected to the base shell 210.
- the substrate 300 can be a transparent or semi-transparent substrate.
- the substrate 300 can be, but is not limited to, a glass substrate, a polymethyl methacrylate (PMMA) substrate, a resin substrate, a ceramic substrate, a sapphire substrate, etc.
- PMMA polymethyl methacrylate
- the diaphragm 400 can be bonded to the inner surface of the substrate 300 via a transparent adhesive layer 470.
- the transparent adhesive layer 470 can be optically clear adhesive (OCA).
- the diaphragm 400 may include a transparent adhesive layer 470, or it may not include a transparent adhesive layer 470.
- the transparent adhesive layer 470 is a structural layer located between the diaphragm 400 and the substrate 300.
- the transparent adhesive layer 470 can be coated on the surface of the diaphragm 400 or the substrate 300 before the diaphragm 400 and the substrate 300 are bonded.
- the thickness of the transparent adhesive layer 470 can be 10 to 25 ⁇ m.
- FIG. 5 is a schematic diagram of another cover plate provided in an embodiment of this application.
- the diaphragm 400 includes a support layer 410, which is used to support other structural layers of the diaphragm 400 to provide a substrate for the diaphragm 400.
- the carrier layer 410 may include, but is not limited to, a polyethylene terephthalate (PET) layer, a polycarbonate (PC) layer, a biaxially oriented polypropylene (BOPP) layer, a thermoplastic polyurethanes (TPU) layer, etc.
- PET polyethylene terephthalate
- PC polycarbonate
- BOPP biaxially oriented polypropylene
- TPU thermoplastic polyurethanes
- the diaphragm 400 further includes a first textured layer 420 and a second textured layer 430.
- the carrier layer 410 has a first side surface 411 and a second side surface 412, which are located on opposite sides of the carrier layer 410 in the thickness direction.
- the first side surface 411 is the surface of the carrier layer 410 away from the substrate 300
- the second side surface 412 is the surface of the carrier layer 410 close to the substrate 300.
- the first textured layer 420 is disposed on the first side surface 411
- the second textured layer 430 is disposed on the second side surface 412.
- the second textured layer 430 is located between the substrate 300 and the carrier layer 410, and the carrier layer 410 is located between the first textured layer 420 and the substrate 300.
- Interference texture patterns refer to texture patterns formed by the mutual interference of a first texture pattern and a second texture pattern that are superimposed.
- the interference texture patterns formed by the superposition of the first texture pattern and the second texture pattern produce a variety of light and shadow effects.
- the first protrusion structure 421 includes a first protruding surface protruding from the first side surface 411.
- the first protruding surface is used to reflect light incident from the carrier layer 410 onto the first protruding surface.
- Light from the user side passes through the substrate 300, the second texture layer 430, and the carrier layer 410 and enters the first texture layer 420. It is then reflected by the first protruding surface to form a first texture pattern.
- the light reflected by the first protruding surface forms a second texture pattern when it passes through the second texture layer 430.
- the first texture pattern formed by the first texture layer 420 and the second texture pattern formed by the second texture layer 430 will produce a Moore effect of mutual interference, thereby forming an interference texture pattern with varying light and shadow.
- the first texture layer 420 and the second texture layer 430 are respectively disposed on both sides of the carrier layer 410 in the thickness direction, which makes the process of forming the stacked second texture layer 430 and the first texture layer 420 with the first protrusion structure 421 on the carrier layer 410 simpler, and the first texture layer 420 and the second texture layer 430 easier to form.
- the first convex surface is a curved surface that forms a lens structure.
- the reflected light rays formed by the reflection of parallel light rays at different points on the first convex surface have different directions.
- the reflected light rays formed by the reflection of the first convex surface will diverge in all directions, resulting in a diffuse reflection effect. This makes the brightness and gloss of the film appear poor to the user, and it is difficult for the film to produce a strong metallic texture.
- the first protruding surface includes multiple reflective surfaces for reflecting light incident from the carrier layer 410 onto the reflective surfaces.
- One or more of the multiple reflective surfaces are planar, meaning the first protruding surface includes one or more planar surfaces for reflecting light from the carrier layer 410.
- one or more of the multiple reflective surfaces are planar, and one or more of the multiple reflective surfaces are curved, meaning the first protruding surface includes one or more planar surfaces and one or more curved surfaces for reflecting light from the carrier layer 410.
- Figure 6 is a schematic diagram of the bearing layer and the first texture layer of the cover plate provided in Figure 5.
- At least one reflective surface of the first protruding surface is a plane, that is, the first protruding surface includes a plane for reflecting light from the carrier layer 410.
- the first protruding surface may include a first plane 4211a and a second plane 4211b, both of which can be used to reflect light from the carrier layer 410.
- the parallel light rays that strike the first raised surface are reflected in the same direction on the flat reflective surface, which will produce a strong specular reflection effect.
- This will make the brightness and gloss of the diaphragm 400 appear higher to the user at the corresponding viewing angle, and thus give the diaphragm 400 a strong metallic texture.
- the first texture layer 420 may include a plurality of first protrusion structures 421.
- the first protrusion structure 421 can be continuously provided on the first side surface 411, that is, the connecting surfaces 4212 of two adjacent first protrusion structures 421 are connected.
- first protrusion structure 421 may also be spaced apart on the first side surface 411, that is, there is a gap between the connecting surfaces 4212 of two adjacent first protrusion structures 421.
- the first protrusion structure 421 may be formed by a curing material, which may include, but is not limited to, a photocurable material or a thermocurable material.
- the curing material may include, but is not limited to, epoxy resin, phenolic resin, etc.
- the first protrusion structure 421 can be formed by photoresist.
- the first protrusion structure 421 can be formed on the first side 411 by photolithography. Specifically, a layer of photoresist can be laid on the first side 411 first, and then photolithography can be performed on the photoresist laid on the first side 411 to form the first protrusion structure 421.
- Figure 7 shows the cover plate provided in Figure 5 from a first perspective
- Figure 8 shows the cover plate provided in Figure 5 from a second perspective
- P1 and P2 represent the first perspective and the second perspective, respectively, which are two different perspectives.
- the two patterns shown in Figures 7 and 8 are only used to indicate that the interference texture patterns seen from the first viewing angle P1 and the second viewing angle P2 are two different patterns, and do not specifically refer to two particular patterns.
- the two different patterns can be one or more different patterns in terms of shape, brightness, color, etc.
- the diaphragm 400 further includes a first coating layer 440.
- a first textured layer 420 is located between the carrier layer 410 and the first coating layer 440, and a first raised surface is in contact with the first coating layer 440.
- the refractive index of the first coating layer 440 is different from the refractive index of the first raised structure 421.
- the first coating layer 440 makes the interface at the first raised surface clear, thereby improving the reflection effect at the first raised surface, increasing the gloss and brightness of the diaphragm 400, and giving the diaphragm 400 a stronger metallic texture. Furthermore, the improved reflection effect at the first raised surface enhances the clarity of the formed first texture pattern, making the interference texture pattern appear more distinct from different viewing angles. Additionally, the first coating layer 440 can be used to alter the background color, transparency, and other appearance effects of the formed interference texture pattern, allowing the diaphragm 400 to offer a wider range of aesthetic effects.
- the first coating layer 440 When the first raised surface is in contact with the first coating layer 440 and the first side surface 411 is covered by the first raised structure 421, the first coating layer 440 is disposed on the surface of the first raised structure 421, and the first coating layer 440 covers all the first raised surfaces of the first raised structure 421.
- the first coating layer 440 is disposed on the surface of the first protruding structure 421 and the second area of the first side surface 411, and the first coating layer 440 covers all the first protruding surfaces of the first protruding structure 421 and the second areas of the first side surface 411.
- the first coating layer 440 may be a metal oxide layer.
- the first coating layer 440 may be formed from one or more of the following materials: magnesium fluoride, titanium dioxide, zirconium oxide, niobium oxide, etc.
- the thickness of the first coating layer 440 can be 20 to 400 nm.
- the diaphragm 400 further includes an ink layer 450 located on the side of the first texture layer 420 away from the carrier layer 410.
- the ink layer 450 can be used to add background colors, patterns, and other appearance effects to the diaphragm 400, enabling the diaphragm 400 to provide a wider range of appearance effects.
- the ink layer 450 can be formed on the side of the first coating layer 440 away from the carrier layer 410 by one or more processes such as screen printing and spraying.
- the thickness of the ink layer 450 can be 15 to 50 ⁇ m.
- a protective layer 460 may be disposed on the surface of the ink layer 450 away from the carrier layer 410.
- the ink layer 450 can fill the depressions formed by the protrusion of the first protrusion structure 421.
- Figure 10 is a schematic diagram of another type of diaphragm provided in an embodiment of this application.
- the third plane 4211c and the fourth plane 4211d may both be inclined relative to the first side 411.
- the area enclosed by the contour of the first protruding surface gradually decreases from the end closer to the support layer 410 to the end farther away from the support layer 410.
- each surface of the first protrusion can effectively reflect the light entering the first protrusion structure 421 from the support layer 410, facilitating the achievement of varied light and shadow effects. Furthermore, a large number of reflected rays from the first protrusion surface can enter the user's field of vision, resulting in a high brightness and gloss of the formed interference texture pattern.
- P is the intersection point of the normals at the center of the reflective surface of the first protruding structure 421
- H1 is the distance between the end of the first protruding structure 421 away from the support layer 410 and the support layer 410
- H2 is the thickness of the support layer 410
- L is the distance between the intersection point of the normals and the end of the first protruding structure 421 away from the support layer 410.
- the normals at the center of all reflective surfaces intersect at the same intersection point P. That is, the normals at the center of all reflective surfaces intersect at the same point, which we call the intersection point P of the normals of the first protruding structure 421.
- the distance between the intersection point P and the end of the first protruding structure 421 away from the support layer 410 is L
- the distance between the end of the first protruding structure 421 away from the support layer 410 and the support layer 410 is H1
- the thickness of the support layer 410 is H2
- L 2(H1 + H2).
- At least one reflective surface of the first raised surface is curved, that is, the first raised surface includes a curved surface for reflecting light from the carrier layer 410.
- the normal at the center of all planar reflective surfaces passes through the normal intersection point P, and the normal at the center of all curved reflective surfaces also passes through the normal intersection point P.
- intersection point P of the normals of different first protrusion structures 421 is different.
- Figure 12 is a schematic diagram of a first texture layer on a first side surface provided in an embodiment of this application.
- the first protrusion structure 421 is a convex polyhedral structure, that is, the first protrusion surface is composed of multiple planes. In this case, each reflective surface of the first protrusion surface is a plane.
- the first protrusion structure 421 can be a tetrahedral structure, a pentahedral structure, etc.
- each plane of the first raised surface is inclined relative to the first side 411, that is, each reflective surface of the first raised surface is a plane inclined relative to the first side 411.
- the light-gathering effect of the first raised surface is better, and more reflected light can enter the user's line of sight, which can make the brightness and gloss of the formed interference texture pattern higher.
- the plurality of first protrusions 421 of the first texture layer 420 are arranged in a honeycomb pattern on the first side 411.
- Figure 13 is a schematic diagram of another first texture layer on the first side provided in an embodiment of this application.
- the first protrusion structure 421 can be a ridge structure with both ends extending along a straight line, and multiple first protrusion structures 421 are arranged in parallel on the first side surface 411. In this way, it is easier to form the first texture layer 420.
- Figure 14 is a schematic diagram of the bearing layer and the first texture layer of another cover plate provided in an embodiment of this application.
- At least one reflective surface of the first raised surface is a curved surface, that is, the first raised surface includes a curved surface for reflecting light from the carrier layer 410.
- the first raised surface may include a fifth plane 4211e and a first curved surface 4213a, both of which are used to reflect light from the carrier layer 410.
- the resulting first texture pattern can be more varied, which in turn can lead to a more varied interference texture pattern, resulting in a more diverse range of changes in the diaphragm 400 under different viewing angles.
- one side of the curved reflecting surface is connected to the connecting surface 4212, and the other side is connected to the planar reflecting surface.
- one side of the first curved surface 4213a is connected to the connecting surface 4212, and the other side is connected to one side of the fifth plane 4211e, while the other side of the fifth plane 4211e is connected to the connecting surface 4212.
- Figure 15 is a schematic diagram of the bearing layer and the first texture layer of another cover plate provided in an embodiment of this application.
- a curved reflecting surface can be connected to multiple planar reflecting surfaces, and a curved reflecting surface can be connected to a connecting surface through a planar reflecting surface.
- the first protruding surface may include a sixth plane 4211f, a seventh plane 4211g, and a second curved surface 4213b.
- the sixth plane 4211f, the seventh plane 4211g, and the second curved surface 4213b are all used to reflect light from the carrier layer 410.
- the second curved surface 4213b is connected to the sixth plane 4211f and the seventh plane 4211g, and the second curved surface 4213b can be connected to the connecting surface 4212 through the sixth plane 4211f and the seventh plane 4211g.
- the second curved surface 4213b may be located at the end of the first raised surface away from the first side surface 411.
- Figure 16 is a schematic diagram of the bearing layer and the first texture layer of another cover plate provided in an embodiment of this application.
- a planar reflective surface can be connected to multiple curved reflective surfaces.
- the first protruding surface may include an eighth plane 4211h, a third curved surface 4213c, and a fourth curved surface 4213d.
- the eighth plane 4211h, the third curved surface 4213c, and the fourth curved surface 4213d are all used to reflect light from the carrier layer 410.
- the eighth plane 4211h is connected to the third curved surface 4213c and the fourth curved surface 4213d.
- the eighth plane 4211h can be connected to the connecting surface 4212 through the third curved surface 4213c and the fourth curved surface 4213d.
- one of the reflecting surfaces is a plane parallel to the first side surface.
- the eighth plane 4211h is parallel to the first side surface 411.
- the eighth plane 4211h may be located at the end of the first protruding surface away from the first side 411.
- At least one of the third surface 4213c and the fourth surface 4213d may also be replaced by a planar reflective surface.
- this application does not limit the number of planar and curved reflective surfaces or their connection relationship, as long as at least one reflective surface on the first raised surface is planar.
- Figure 17 is a schematic diagram of another cover plate provided in an embodiment of this application.
- the second texture layer 430 includes a coloring structure 431 for forming a second texture pattern.
- the second texture pattern can be formed by irradiating the coloring structure 431 with reflected light from the first raised surface, which places fewer restrictions on the structure of the second texture layer 430.
- the side of the second texture layer 430 facing away from the carrier layer 410 can be planar, making it easier to place the transparent adhesive layer 470 on the side of the second texture layer 430 facing away from the carrier layer 410.
- the coloring structure 431 can be a structure formed by one or more of inks, colored photoresists, etc.
- the second texture layer 430 may also include a substrate structure 432, and the coloring structure 431 may be embedded on the surface of the substrate structure 432 or inside the substrate structure 432.
- the substrate structure 432 can be formed by a curing material, which may include, but is not limited to, a photocurable material or a thermocurable material.
- the curing material may include, but is not limited to, epoxy resin, phenolic resin, etc.
- the substrate structure 432 can be formed by UV-curable adhesive.
- a recessed structure can be formed on the side of the UV-curable adhesive laid on the second side away from the carrier layer 410 by UV-curable adhesive imprinting process to form a substrate structure 432 with a recessed structure. Then, a coloring structure 431 is embedded in the recessed structure of the substrate structure 432.
- the substrate structure 432 can be formed by photoresist.
- a recessed structure can be formed on the side of the photoresist laid on the second side away from the carrier layer 410 by photolithography to form a substrate structure 432 with a recessed structure. Then, a coloring structure 431 is embedded in the recessed structure of the substrate structure 432.
- the coloring structure 431 can fill the recessed structure of the substrate structure 432.
- the coloring structure 431 can protrude from the side of the substrate structure 432 away from the support layer 410.
- the coloring structure 431 can fill a portion of the recessed structure of the substrate structure 432, which is filled by other structural layers, for example, the recessed structure of the substrate structure 432 can be filled by the transparent adhesive layer 470.
- the second textured layer 430 is attached to the transparent adhesive layer 470, meaning that no other structural layer is provided between the second textured layer 430 and the transparent adhesive layer 470. This simplifies the manufacturing process of the film 400 and reduces costs.
- Figure 18 is a schematic diagram of another cover plate provided in an embodiment of this application.
- the second texture layer 430 includes a second protrusion structure 433 protruding in a direction away from the carrier layer 410.
- the second protrusion structure 433 is used to form a second texture pattern.
- the second protrusion structure 433 includes a second protruding surface protruding from the second side surface 412.
- the second protruding surface is used to refract light incident from the carrier layer 410 onto the second protruding surface. Light reflected by the first protruding surface is refracted when it passes through the second protruding surface to form the second texture pattern.
- the light rays emitted from different positions on the second convex surface can have different directions, so that different second texture patterns can be formed at different viewing angles, thereby making the variation of the formed interference texture patterns richer.
- the second protrusion structure 433 can be the same as the first protrusion structure 421, or the second protrusion structure 433 can be different from the first protrusion structure 421.
- the second raised structure 433 may be formed by a curing material, which may include, but is not limited to, a photocurable material or a thermocurable material.
- the curing material may include, but is not limited to, epoxy resin, phenolic resin, etc.
- the second protrusion structure 433 may be formed by ultraviolet light-curing (UV) adhesive, and the second protrusion structure 433 may be formed on the second side surface 412 by a UV-curing adhesive imprinting process.
- UV ultraviolet light-curing
- the second texture layer 430 includes a plurality of second protrusion structures 433 protruding in a direction away from the carrier layer 410.
- the second protrusion structures 433 may be formed by photoresist and may be formed on the second side surface 412 by photolithography.
- the shading structure 431 may be integrated on the second protrusion structure 433, that is, the second protrusion structure 433 may be the shading structure 431, or the second protrusion structure 433 may include the shading structure 431.
- the second protrusion structure 433 may be continuously provided on the second side 412.
- the second protrusion structure 433 may also be spaced out on the second side 412.
- the transparent adhesive layer 470 is in contact with the second protrusion surface; that is, there are no other structural layers between the second protrusion surface and the transparent adhesive layer 470, and the refractive index of the transparent adhesive layer 470 is different from that of the second protrusion structure 433.
- the transparent adhesive layer 470 can fill the depression structure formed by the protrusion of the second protrusion structure 433.
- the transparent adhesive layer 470 which has a different refractive index than the second protrusion structure 433, can make the interface at the surface of the second protrusion clear, improve the clarity of the formed second texture pattern, and make the interference texture pattern formed under different viewing angles change significantly.
- no other structural layer needs to be provided between the second protrusion surface and the transparent adhesive layer 470, which makes the processing technology of the film 400 with the second protrusion structure 433 simpler and the cost lower.
- the transparent adhesive layer 470 is disposed on the surface of the second protruding structure 433, and the transparent adhesive layer 470 covers all the second protruding surfaces of the second protruding structure 433.
- the transparent adhesive layer 470 is disposed on the surface of the second protruding structure 433 and the fourth region of the second side surface 412, and the transparent adhesive layer 470 covers all the second protruding surfaces of the second protruding structure 433 and the fourth region of the second side surface 412.
- the surface of the second protrusion can be curved. This allows for a richer variety of second texture patterns, enabling the second texture pattern to change continuously with varying viewing angles.
- the second raised surface can be used to form a lens structure.
- the second protrusion surface may include one or more planes, or the second protrusion surface may include one or more planes and one or more curved surfaces.
- Figure 19 is a schematic diagram of another cover plate provided in an embodiment of this application.
- the second protruding surface includes multiple refractive surfaces for refracting light from the carrier layer 410, at least one of which is planar. This allows for higher brightness and gloss in the formed interference texture pattern.
- At least one refractive surface of the second protruding surface is a plane inclined relative to the second side surface 412.
- one of the refractive surfaces of the second raised surface is a plane parallel to the second side surface 412.
- At least one refractive surface of the second protruding surface is curved.
- the diaphragm 400 further includes a second coating layer 490.
- a second textured layer 430 is located between the carrier layer 410 and the second coating layer 490, and a second raised surface is in contact with the second coating layer 490.
- the refractive index of the second coating layer 490 is different from the refractive index of the second raised structure 433.
- the second coating layer 490 makes the interface at the second protruding surface clearer, improves the clarity of the formed second texture pattern, and makes the interference texture pattern formed under different viewing angles change significantly. Furthermore, the second coating layer 490 can also be used to change the color, transparency, and other appearance effects of the formed interference texture pattern, allowing the film 400 to provide a wider range of aesthetic effects. In addition, it reduces the limitations on the selection of the transparent adhesive layer 470; a transparent adhesive layer 470 with the same or similar refractive index as the second protruding structure 433 can be used to bond the film 400.
- the second coating layer 490 is disposed on the surface of the second protruding structure 433, and the second coating layer 490 covers all the second protruding surfaces of the second protruding structure 433.
- the second coating layer 490 is disposed on the surface of the second protruding structure 433 and the fourth region of the second side surface 412, and the second coating layer 490 covers all the second protruding surfaces of the second protruding structure 433 and the fourth region of the second side surface 412.
- the second coating layer 490 may be a metal oxide layer.
- the second coating layer 490 may be formed from one or more of the following materials: magnesium fluoride, titanium dioxide, zirconium oxide, niobium oxide, etc.
- the second coating layer 490 may be formed by one or more of the following processes: non-conductive vacuum metallization (NCVM), plasma enhanced chemical vapor deposition (PECVD), metal-organic chemical vapor deposition (MOCVD), electrochemical deposition, radio frequency (RF) sputtering, and direct current (DC) sputtering.
- NVM non-conductive vacuum metallization
- PECVD plasma enhanced chemical vapor deposition
- MOCVD metal-organic chemical vapor deposition
- electrochemical deposition electrochemical deposition
- RF radio frequency
- DC direct current
- the thickness of the second coating layer 490 can be 20 to 400 nm.
- the side of the second coating layer 490 facing away from the carrier layer 410 is in contact with a transparent adhesive layer 470, which can fill in the depressions formed by the second coating layer 490 due to its placement on the surface of the second protrusion structure 433.
- the second texture layer 430 may include an optical metasurface structure for forming the second texture pattern.
- the second texture pattern can be formed by the refraction of light through the optical metasurface structure, resulting in a richer second texture pattern and consequently a richer interference texture pattern.
- the optical metasurface structure is a concave-convex structure formed on the second side surface 412.
- the second protrusion structure 433 can be an optical metasurface unit of the optical metasurface structure.
- an optical metasurface structure may be disposed within the substrate structure 432, and the side of the second texture layer 430 facing away from the carrier layer 410 may be planar.
- the second texture layer 430 may include a Fabry-Perot resonator structure for forming the second texture pattern.
- the second texture pattern can be formed by the resonance of light through the Fabry-Perot resonator structure, facilitating control over the formed second texture pattern.
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Abstract
一种膜片(400)、盖板及电子设备,膜片(400)包括承载层(410)、第一纹理层(420)和第二纹理层(430)。承载层(410)具有沿厚度方向相对的第一侧面(411)和第二侧面(412),第一纹理层(420)设置在第一侧面(411),第二纹理层(430)设置在第二侧面(412)。第一纹理层(420)包括朝远离承载层(410)的方向凸出的第一凸起结构(421),第一凸起结构(421)用于形成第一纹理图案。第二纹理层(430)用于形成第二纹理图案,第一纹理图案与第二纹理图案叠加形成干涉纹理图案。其中,第一凸起结构(421)包括第一凸起表面,第一凸起表面包括用于反射来自承载层(410)的光线的平面,可提高膜片(400)的亮度和光泽度,使膜片(400)产生较强的金属质感。
Description
本申请要求于2024年05月30日提交中国专利局、申请号为202410689333.3、申请名称为“膜片、盖板及电子设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请实施例涉及电子设备技术领域,特别涉及一种膜片、盖板及电子设备。
手机、平板电脑等电子设备的外观会影响消费者的购买欲望,为提高电子设备的外观效果,可在电子设备上设置纹理图案。
为使纹理图案能够形成多变的光影效果,在相关技术中,电子设备上可以设置两层纹理层,两层纹理层叠加可以产生摩尔效应,进而可形成光影多变的干涉纹理图案。
然而,在相关技术中,具有光影多变外观效果的膜片的亮度和光泽度较差,较难产生较强的金属质感。
本申请实施例提供一种膜片、盖板及电子设备,可提高具有光影多变外观效果的膜片的亮度和光泽度,可使具有光影多变外观效果的膜片产生较强的金属质感。
本申请实施例第一方面提供一种膜片,该膜片包括承载层、第一纹理层和第二纹理层。承载层具有第一侧面和第二侧面,第一侧面和第二侧面分别位于承载层的厚度方向上的两侧,第一纹理层设置在第一侧面,第二纹理层设置在第二侧面。第一纹理层包括朝远离承载层的方向凸出的第一凸起结构,第一凸起结构用于形成第一纹理图案。第二纹理层用于形成第二纹理图案,第一纹理图案与第二纹理图案叠加形成干涉纹理图案。其中,第一凸起结构包括凸出于第一侧面的第一凸起表面,第一凸起表面包括多个反射面,反射面用于反射由承载层射向反射面的光线,至少一个反射面为平面。
本申请实施例的提供的膜片,射向第一凸起表面的平行光线在第一凸起表面的平面处反射形成的反射光线的射向相同,会产生比较强的镜面反射的效果,可使用户在对应视角下看到的膜片的亮度和光泽度较高,进而可使膜片产生较强的金属质感。
在一种可能的实施方式中,至少一个平面相对于第一侧面倾斜。如此,便于将第一凸起表面的多个反射面布置在由承载层射入第一凸起结构的光线的光路上,当由承载层射入第一凸起结构的光线的光路上布置有多个反射面时,可通过第一凸起表面反射形成多个不同射向的反射光线,以便于实现光影多变的外观效果。
在一种可能的实施方式中,第一凸起结构为凸多面体结构。如此,便于在多个不同视角均能形成亮度、光泽度较高的干涉纹理图案。
在一种可能的实施方式中,第一凸起表面由多个平面组成,每个平面均相对于第一侧面倾斜。如此,第一凸起表面的聚光效果较好,能够进入用户视线的反射光线较多,可使形成的干涉纹理图案的亮度、光泽度较高。
在一种可能的实施方式中,至少一个反射面为曲面。如此,可使形成的第一纹理图案的变化较为丰富,进而可使形成的干涉纹理图案的变化较为丰富,膜片在不同视角下的变化较为多样。
在一种可能的实施方式中,第一凸起结构还包括与第一侧面相连的连接面,第一凸起表面沿承载层的厚度方向的投影位于连接面沿承载层的厚度方向的投影内。如此,可使第一凸起结构在第一侧面上形成较为容易。
在一种可能的实施方式中,第一凸起表面的轮廓围成的面积由靠近承载层的一端向远离承载层的一端逐渐减小。如此,第一凸起表面的各个面均能对由承载层射入第一凸起结构的光线进行较好的反射,便于实现光影多变的外观效果。另外,被第一凸起表面反射形成的反射光线能够进入用户视线的数量较多,形成的干涉纹理图案的亮度和光泽度较高。
在一种可能的实施方式中,在同一个第一凸起结构中,所有的反射面的中心处的法线相交于同一个法线交点,法线交点与第一凸起结构远离承载层的一端之间的间距为L,第一凸起结构远离承载层的一端与承载层之间的间距为H1,承载层的厚度为H2,L=2(H1+H2)。如此,可使形成的干涉纹理图案的变化较为丰富,膜片在不同视角下的变化较为多样。此外,可使形成的干涉纹理图案随视角的变化而变化时较为连续。
在一种可能的实施方式中,该膜片还包括第一镀膜层。第一纹理层位于承载层与第一镀膜层之间,第一凸起表面与第一镀膜层相接,第一镀膜层的折射率与第一凸起结构的折射率不同。如此,可使第一凸起表面处的反射效果较好,可使膜片的光泽度和亮度较高、金属质感较强。此外,也可使形成的第一纹理图案较为清晰,可使不同视角下形成的干涉纹理图案变化明显。另外,也可以通过第一镀膜层来改变干涉纹理图案的外观效果。
在一种可能的实施方式中,该膜片还包括油墨层。油墨层位于第一镀膜层远离承载层的一侧,油墨层设置在第一镀膜层的表面。如此,油墨层可以用于为膜片增加底色、底图等外观效果,可使膜片能够提供的外观效果较为丰富,通过油墨层与第一镀膜层的叠加,可以提供更为丰富的外观效果。
在一种可能的实施方式中,该膜片还包括油墨层。第一纹理层位于承载层与油墨层之间,第一凸起表面与油墨层相接。如此,油墨层可以用于为膜片增加底色、底图等外观效果,可使膜片能够提供的外观效果较为丰富。另外,可以通过油墨层来使第一凸起表面处的界面清晰,以使膜片的光泽度和亮度较高、金属质感较强、不同视角下形成的干涉纹理图案变化明显。此外,由于不需要形成第一镀膜层,可减小膜片的厚度,使膜片的加工工艺更加简单,成本更低。
在一种可能的实施方式中,第二纹理层包括着色结构,着色结构用于形成第二纹理图案。这样,可以通过使着色结构被第一凸起表面反射形成的反射光线照射来形成第二纹理图案,对第二纹理层的结构的限制较小。
在一种可能的实施方式中,第二纹理层包括朝远离承载层的方向凸出的第二凸起结构,第二凸起结构用于形成第二纹理图案。其中,第二凸起结构包括凸出于第二侧面的第二凸起表面,第二凸起表面用于折射由承载层射向第二凸起表面的光线。这样,经第一凸起表面反射的光线在第二凸起表面处发生折射时,可使在第二凸起表面的不同位置射出的光线的射向不同,使得在不同视角下可以形成不同的第二纹理图案,进而可使形成的干涉纹理图案的变化更加丰富。
第二凸起结构可以与第一凸起结构相同,第二凸起结构也可以与第一凸起结构不同。
例如,第二凸起表面可以包括一个或者多个平面,或者,第二凸起结构的第二凸起表面可以包括一个或者多个平面、以及一个或者多个曲面。
又如,第二凸起表面可以为曲面。
在一种可能的实施方式中,该膜片还包括第二镀膜层。第二纹理层位于承载层与第二镀膜层之间,第二凸起表面与第二镀膜层相接,第二镀膜层的折射率与第二凸起结构的折射率不同。这样,通过设置的第二镀膜层可使第二凸起表面处的界面清晰,可提高形成的第二纹理图案的清晰度,可使不同视角下形成的干涉纹理图案变化明显。另外,还可以通过第二镀膜层来改变形成的干涉纹理图案的外观效果。此外,可以降低对透明粘接层选材的限制,可以选用折射率与第二凸起结构相同或者相近的透明粘接层来粘接膜片。
在一种可能的实施方式中,第二纹理层包括光学超表面结构,光学超表面结构用于形成第二纹理图案。如此,可以通过光学超表面结构对光线的折射来形成第二纹理图案,可使形成的第二纹理图案较为丰富,进而可使形成的干涉纹理图案较为丰富。
在一种可能的实施方式中,第二纹理层包括法布里-珀罗谐振腔结构,法布里-珀罗谐振腔结构用于形成第二纹理图案。如此,可以通过法布里-珀罗谐振腔结构对光线的谐振来形成第二纹理图案,便于对形成的第二纹理图案进行控制。
本申请实施例第二方面提供一种盖板,该盖板包括上述任一实施方式中的膜片,以及可透光的基板。膜片设置在基板的内表面,膜片的第二纹理层位于基板与膜片的承载层之间。
本申请实施例第三方面提供一种电子设备,该电子设备包括上述任一实施方式中的盖板。
图1为本申请实施例提供的一种电子设备的示意图;
图2为本申请实施例提供的一种电子设备的显示屏的示意图;
图3为本申请实施例提供的一种电子设备的后盖的示意图;
图4为本申请实施例提供的一种盖板的示意图;
图5为本申请实施例提供的又一种盖板的示意图;
图6为图5中提供的盖板的承载层和第一纹理层的示意图;
图7为图5中提供的盖板在第一视角下显现的图像;
图8为图5中提供的盖板在第二视角下显现的图像;
图9为本申请实施例提供的一种膜片的示意图;
图10为本申请实施例提供的又一种膜片的示意图;
图11为本申请实施例提供的又一种盖板的承载层和第一纹理层的示意图;
图12为本申请实施例提供的一种第一纹理层的在第一侧面上的示意图;
图13为本申请实施例提供的又一种第一纹理层在第一侧面上的示意图;
图14为本申请实施例提供的又一种盖板的承载层和第一纹理层的示意图;
图15为本申请实施例提供的又一种盖板的承载层和第一纹理层的示意图;
图16为本申请实施例提供的又一种盖板的承载层和第一纹理层的示意图;
图17为本申请实施例提供的又一种盖板的示意图;
图18为本申请实施例提供的又一种盖板的示意图;
图19为本申请实施例提供的又一种盖板的示意图。
附图标记说明:
100、显示屏;
110、前盖;111、显示区域;112、非显示区域;120、显示模组;
200、壳体;
210、基壳;220、后盖;221、基盖;222、表层板;
300、基板;
400、膜片;
410、承载层;411、第一侧面;412、第二侧面;
420、第一纹理层;421、第一凸起结构;4211a、第一平面;4211b、第二平面;4211c、第三平面;
4211d、第四平面;4211e、第五平面;4211f、第六平面;4211g、第七平面;4211h、第八平面;4212、连接面;4213a、第一曲面;4213b、第二曲面;4213c、第三曲面;4213d、第四曲面;
430、第二纹理层;431、着色结构;432、基材结构;433、第二凸起结构;
440、第一镀膜层;450、油墨层;460、保护层;470、透明粘接层;480、离型膜;490、第二镀膜
层;
P、法线交点;H1、第一凸起结构远离承载层的一端与承载层之间的间距;H2、承载层的厚度;L、
法线交点与第一凸起结构远离承载层的一端之间的间距。
100、显示屏;
110、前盖;111、显示区域;112、非显示区域;120、显示模组;
200、壳体;
210、基壳;220、后盖;221、基盖;222、表层板;
300、基板;
400、膜片;
410、承载层;411、第一侧面;412、第二侧面;
420、第一纹理层;421、第一凸起结构;4211a、第一平面;4211b、第二平面;4211c、第三平面;
4211d、第四平面;4211e、第五平面;4211f、第六平面;4211g、第七平面;4211h、第八平面;4212、连接面;4213a、第一曲面;4213b、第二曲面;4213c、第三曲面;4213d、第四曲面;
430、第二纹理层;431、着色结构;432、基材结构;433、第二凸起结构;
440、第一镀膜层;450、油墨层;460、保护层;470、透明粘接层;480、离型膜;490、第二镀膜
层;
P、法线交点;H1、第一凸起结构远离承载层的一端与承载层之间的间距;H2、承载层的厚度;L、
法线交点与第一凸起结构远离承载层的一端之间的间距。
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释,而非旨在限定本申请,下面将结合附图对本申请实施例的实施方式进行详细描述。
本申请实施例提供一种电子设备,该电子设备可以包括但不限于为手机、平板电脑、笔记本电脑、超级移动个人计算机(ultra-mobile personal computer,UMPC)、手持计算机、对讲机、上网本、销售点(Point of sales,POS)机、个人数字助理(personal digital assistant,PDA)、可穿戴设备、虚拟现实设备、电视机等。本申请实施例以电子设备为手机为例来进行说明。
图1为本申请实施例提供的一种电子设备的示意图。
如图1所示,在本申请实施例中,电子设备可以包括壳体200,壳体200用于围设形成器件安装腔,器件安装腔可以用于容纳主板、芯片等电子器件。
电子设备还可以包括显示屏100,显示屏100可以设置在壳体200的厚度方向上的一侧,显示屏100可以用于封盖器件安装腔在壳体200的厚度方向上的一侧的开口。
示例性的,显示屏100可以粘接在壳体200上。
壳体200可以包括基壳210和后盖220,后盖220和显示屏100分别设置在基壳210相对的两侧,基壳210和后盖220用于围设形成器件安装腔。
示例性的,基壳210可以为电子设备的边框或者中框。
示例性的,显示屏100可以粘接在基壳210上。
在一些示例中,基壳210与后盖220可以为一体结构。
在另一些示例中,基壳210与后盖220可以为分体结构,后盖220可以通过粘接、卡接、紧固件连接等至少一种方式设置在基壳210上。
图2为本申请实施例提供的一种电子设备的显示屏的示意图。
如图2所示,在一些示例中,显示屏100可以包括前盖110和显示模组120,前盖110可以盖接在基壳210上,前盖110可以用于封盖器件安装腔在壳体200的厚度方向上的一侧的开口,显示模组120设置在前盖110的内侧,显示模组120用于形成显示图像,前盖110位于显示模组120的出光侧,前盖110可以使显示模组120与外界隔离以及保护显示模组120,使得显示模组120不易因触碰外界的物件而损坏。
前盖110包括显示区域111,显示区域111为透光区域,显示模组120形成的图像可以透过显示区域111显示。
在一些示例中,前盖110还可以包括位于显示区域111周边的非显示区域112,非显示区域112可以用于对前盖110内侧的部分器件进行遮挡。
在另一些示例中,前盖110也可以不包括非显示区域112,前盖110整体均为显示区域111。
图3为本申请实施例提供的一种电子设备的后盖的示意图。
如图3所示,在一些示例中,后盖220可以包括基盖221和表层板222,基盖221的厚度方向上的一侧与基壳210相连,表层板222设置在基盖221的厚度方向上的另一侧,基壳210和基盖221用于围设形成器件安装腔。
在基壳210与后盖220为一体结构的示例中,基壳210与基盖221为一体结构。
在基壳210与后盖220为分体结构的示例中,基盖221可以通过粘接、卡接、紧固件连接等至少一种方式设置在基壳210上。
示例性的,表层板222可以粘接在基盖221上。例如,可以在表层板222的边缘设置粘胶,表层板222可以通过边缘设置的粘胶粘接在基盖221上。
图4为本申请实施例提供的一种盖板的示意图。
如图4所示,为提高电子设备的外观效果,本申请实施例提供一种盖板,电子设备包括该盖板,盖板位于电子设备的外表面。
电子设备的外表面指的是电子设备上用户可以直接接触的表面。
盖板可以包括但不限于为电子设备的前盖110、后盖220、表层板222等位于电子设备的外表面的板状结构。例如,在基壳210与后盖220为一体结构时,盖板可以是基壳210与后盖220形成的整体。
在本申请实施例中,盖板包括膜片400和可透光的基板300,膜片400设置在基板300的内表面。
基板300的外表面指的是基板300上用户可以直接接触的表面,基板300的内表面是与基板300的外表面相对的一侧的表面,基板300的内表面和基板300的外表面分别位于基板300的厚度方向的两侧。
膜片400用于形成纹理图案,膜片400形成的纹理图案可以透过基板300射入用户的眼中,进而可提高电子设备的外观效果。
基板300可以承载膜片400,以及对设置在基板300内表面的膜片400进行保护。
在盖板为前盖110时,盖板包括显示区域111和非显示区域112,膜片400设置在非显示区域112,基板300盖接在基壳210上,例如,基板300可以与基壳210粘接固定。
在盖板为表层板222时,基板300的边缘可以设置粘胶,基板300可以通过边缘设置的粘胶粘接在基盖221上。
在盖板为后盖220的一些示例中,后盖220可以包括基盖221和表层板222,基板300可以粘接在后盖220的基盖221上,基盖221与基壳210固定连接。
在盖板为后盖220的另一些示例中,后盖220也可以包括表层板222、而不包括基盖221,基板300的边缘可以与基壳210固定连接。
示例性的,基板300可以为透明或者半透明基板,例如,基板300可以包括但不限于为玻璃基板、聚甲基丙烯酸酯(polymethyl methacrylate,PMMA)基板、树脂基板、陶瓷基板、蓝宝石基板等。
示例性的,膜片400可以通过透明粘接层470粘接在基板300的内表面。例如,透明粘接层470可以为光学胶(Optically Clear Adhesive,OCA)。
示例性的,膜片400可以包括透明粘接层470,也可以不包括透明粘接层470。
在膜片400不包括透明粘接层470时,透明粘接层470为位于膜片400与基板300之间的一层结构层,可以在膜片400与基板300粘接前,将透明粘接层470涂覆在膜片400或者基板300的表面。
示例性的,透明粘接层470的厚度可以为10~25um。
图5为本申请实施例提供的又一种盖板的示意图。
如图5所示,在本申请实施例中,膜片400包括承载层410,承载层410用于承载膜片400的其他结构层,以为膜片400提供基底。
示例性的,承载层410可以包括但不限于为聚对苯二甲酸乙二醇酯(polyethylene terephthalate,PET)层、聚碳酸酯(polycarbonate,PC)层、双向拉伸聚丙烯(biaxially oriented polypropylene,bopp)层、聚氨酯弹性体(thermoplastic polyurethanes,TPU)层等。
为使膜片400形成的纹理图案可以具有多变的光影效果,膜片400还包括第一纹理层420和第二纹理层430,承载层410具有第一侧面411和第二侧面412,第一侧面411和第二侧面412分别位于承载层410的厚度方向上的两侧,在膜片400设置在基板300的内表面后,第一侧面411为承载层410远离基板300的一侧表面,第二侧面412为承载层410靠近基板300的一侧表面。第一纹理层420设置在第一侧面411,第二纹理层430设置在第二侧面412,也就是说,在膜片400设置在基板300的内表面后,第二纹理层430位于基板300与承载层410之间,承载层410位于第一纹理层420与基板300之间。
第一纹理层420包括朝远离承载层410的方向凸出的第一凸起结构421,第一凸起结构421用于形成第一纹理图案,第二纹理层430用于形成第二纹理图案,第一纹理图案与第二纹理图案叠加形成干涉纹理图案。
干涉纹理图案指的是叠加的第一纹理图案和第二纹理图案产生相互干涉的摩尔效应而形成的纹理图案,第一纹理图案和第二纹理图案叠加产生摩尔效应而形成的干涉纹理图案具有光影多变的效果。
具体来说,第一凸起结构421包括凸出于第一侧面411的第一凸起表面,第一凸起表面用于反射由承载层410射向第一凸起表面的光线。来自用户侧的光线经过基板300、第二纹理层430和承载层410射入第一纹理层420后,经第一凸起表面反射而形成第一纹理图案,经第一凸起表面反射的光线在射过第二纹理层430时会形成第二纹理图案,第一纹理层420形成的第一纹理图案和第二纹理层430形成的第二纹理图案会产生相互干涉的摩尔效应,进而形成光影多变的干涉纹理图案。
第一纹理层420和第二纹理层430分别设置在承载层410在厚度方向上的两侧,可使在承载层410上形成叠置的第二纹理层430以及具有第一凸起结构421的第一纹理层420的工艺较为简单,第一纹理层420和第二纹理层430成型较为容易。
在相关技术中,第一凸起表面为形成透镜结构的曲面。然而,在第一凸起表面为形成透镜结构的曲面时,平行光线在第一凸起表面各处反射形成的反射光线的射向均不相同,被第一凸起表面反射形成的反射光线会沿着各个方向发散,会产生漫反射的效果,使得用户看到的膜片的亮度和光泽度较差,膜片较难产生较强的金属质感。
基于此,在本申请实施例中,第一凸起表面包括多个反射面,反射面用于反射由承载层410射向反射面的光线。多个反射面中的一个或者多个为平面,也就是说,第一凸起表面包括一个或者多个用于反射来自承载层410的光线的平面。或者多个反射面中的一个或者多个为平面、且多个反射面中的一个或者多个为曲面,也就说,第一凸起表面包括一个或者多个用于反射来自承载层410的光线的平面、以及一个或者多个用于反射来自承载层410的光线的曲面。如此,可实现提高具有光影多变外观效果的膜片400的亮度和光泽度的目的,使得膜片400具有较强的金属质感。
图6为图5中提供的盖板的承载层和第一纹理层的示意图。
如图6所示,并参看图5,在本申请实施例中,第一凸起表面的至少一个反射面为平面,也就是说,第一凸起表面包括用于反射来自承载层410的光线的平面。例如,第一凸起表面可以包括第一平面4211a和第二平面4211b,第一平面4211a和第二平面4211b均可以用于反射来自承载层410的光线。
这样,射向第一凸起表面的平行光线在为平面的反射面上反射形成的反射光线的射向相同,会产生比较强的镜面反射的效果,可使用户在对应视角下看到的膜片400的亮度和光泽度较高,进而可使膜片400产生较强的金属质感。
第一凸起结构421还包括与第一侧面411相连的连接面4212,连接面4212为第一凸起结构421与第一侧面411结合的面,第一凸起表面与连接面4212的边缘相连。例如,第一平面4211a和第二平面4211b均与连接面4212的边缘相连。
第一纹理层420可以包括多个第一凸起结构421。
在一些示例中,第一凸起结构421可以在第一侧面411上连续设置,也就是说,相邻的两个第一凸起结构421的连接面4212相接。
在另一些示例中,第一凸起结构421也可以在第一侧面411上间隔设置,也就是说,相邻的两个第一凸起结构421的连接面4212之间具有间隔。
第一凸起结构421可以由固化材料形成,该固化材料可以包括但不限于为光固化材料或者热固化材料,例如,该固化材料可以包括但不限于为环氧树脂、酚醛树脂等。
在一些示例中,第一凸起结构421可以由紫外光固化(ultraviolet rays,UV)胶形成,紫外光固化胶也可以叫做无影胶、光敏胶,可以通过紫外光固化胶压印工艺在第一侧面411形成第一凸起结构421,具体来说,可以先在第一侧面411上铺设一层紫外光固化胶,然后通过具有纹理的模具对第一侧面411上铺设的紫外光固化胶进行压印,再对印压后的紫外光固化胶进行曝光来形成第一凸起结构421。
在另一些示例中,第一凸起结构421可以由光刻胶形成,可以通过光刻工艺在第一侧面411形成第一凸起结构421,具体来说,可以先在第一侧面411上铺设一层光刻胶,然后对第一侧面411上铺设的光刻胶进行光刻来形成第一凸起结构421。
图7为图5中提供的盖板在第一视角下显现的图像,图8为图5中提供的盖板在第二视角下显现的图像。图5中,P1和P2分别表示第一视角和第二视角,第一视角和第二视角为两种不同的视角。
如图7、图8所示,并参看图5、图6,由承载层410射向第一凸起表面的光线在第一凸起表面的不同反射面上反射后可以形成射向不同的反射光线,射向不同的反射光线在射过第二纹理层430时的位置和角度不同,使得用户在第一视角P1和第二视角P2下看到的形成的干涉纹理图案可以不同,进而可形成光影多变的干涉纹理图案。
需要说明的是,图7和图8中所示的两种图案仅用于表示在第一视角P1和第二视角P2下看到的干涉纹理图案为不同的两种图案,而不特指两种特定的图案。不同的两种图案可以是形状、亮度、颜色等中的一个或者多个不同的两种图案。
继续参看图5,在一些可能的实施方式中,膜片400还包括第一镀膜层440。第一纹理层420位于承载层410与第一镀膜层440之间,第一凸起表面与第一镀膜层440相接,第一镀膜层440的折射率与第一凸起结构421的折射率不同。
这样,通过设置的第一镀膜层440可使第一凸起表面处的界面清晰,进而可提升第一凸起表面处的反射效果,以使膜片400的光泽度和亮度提高,膜片400的金属质感较强。此外,第一凸起表面处的反射效果提高后,可提高形成的第一纹理图案的清晰度,可使不同视角下形成的干涉纹理图案变化明显。另外,还可以通过第一镀膜层440来改变形成的干涉纹理图案的底色、通透性等外观效果,可使膜片400能够提供的外观效果较为丰富。
由承载层410射向第一凸起表面的光线在第一凸起表面处除了会发生反射外,还会发生折射,进而可射入第一镀膜层440。
在第一凸起表面与第一镀膜层440相接、且第一侧面411被第一凸起结构421覆盖时,第一镀膜层440设置在第一凸起结构421的表面,第一镀膜层440覆盖所有的第一凸起结构421的第一凸起表面。
在第一凸起表面与第一镀膜层440相接、且第一侧面411包括被第一凸起结构421覆盖的第一区域以及不被第一凸起结构421覆盖的第二区域时,第一镀膜层440设置在第一凸起结构421的表面以及第一侧面411的第二区域,第一镀膜层440覆盖所有的第一凸起结构421的第一凸起表面以及第一侧面411的第二区域。
示例性的,第一镀膜层440可以为金属氧化物层。例如,第一镀膜层440可以由以下材料中的一种或者多种形成:氟化镁、二氧化钛、氧化锆、氧化铌等。
示例性的,第一镀膜层440可以由非导电真空电镀(non conductive vacuum metalize,NCVM)工艺、等离子体增强化学气相沉积(plasma enhanced chemical vapor deposition,PECVD)工艺、金属有机化合物化学气相沉积(metal organic chemical vapor deposition,MOCVD)工艺、电化学沉积工艺、射频(radio frequency,RF)溅射工艺、直流溅射(direct current,DC)工艺等中的一种或者多种工艺形成。
示例性的,第一镀膜层440的厚度可以为20~400nm。
在一些可能的实施方式中,膜片400还包括油墨层450,油墨层450位于第一纹理层420远离承载层410的一侧。油墨层450可以用于为膜片400增加底色、底图等外观效果,可使膜片400能够提供的外观效果较为丰富。
油墨层450可以通过丝印工艺、喷涂工艺等工艺中的一种或者多种形成在第一镀膜层440远离承载层410的一侧。
示例性的,油墨层450的厚度可以为15~50um。
在第一凸起表面与第一镀膜层440相接的一些示例中,油墨层450位于第一镀膜层440远离承载层410的一侧,油墨层450设置在第一镀膜层440的表面。此时,可以在第一镀膜层440形成后,通过丝印工艺、喷涂工艺等工艺中的一种或者多种在第一镀膜层440远离承载层410的一侧形成油墨层450。
这样,通过油墨层450与第一镀膜层440的叠加,可以提供多种外观效果,可使膜片400能够提供的外观效果较为丰富。此外,油墨层450也可以用于填平第一镀膜层440因设置在第一凸起结构421表面而形成的凹陷结构,以便使膜片400远离基板300的一侧形成光滑平面。
在一些示例中,膜片400还包括保护层460,保护层460位于膜片400远离基板300的一侧表面,保护层460可以用于提高膜片400的耐磨、防氧化、耐腐蚀等性能中的一种或者多种,以提高膜片400的使用寿命。
在膜片400包括油墨层450的一些示例中,保护层460可以设置在油墨层450远离承载层410一侧的表面。
在第一凸起表面与第一镀膜层440相接的一些示例中,膜片400也可以不包括油墨层450,可以通过保护层460或者其他结构层来填平第一镀膜层440因设置在第一凸起结构421表面而形成的凹陷结构。
图9为本申请实施例提供的一种膜片的示意图。
如图9所示,在膜片400包括油墨层450的一些示例中,第一纹理层420位于承载层410与油墨层450之间,第一凸起表面与油墨层450相接。此时,第一纹理层420与油墨层450之间没有第一镀膜层440,可以在第一凸起结构421形成后,通过丝印工艺、喷涂工艺等工艺中的一种或者多种在第一凸起表面形成油墨层450。
这样,可以通过油墨层450来使第一凸起表面处的界面清晰,以使膜片400的光泽度和亮度较高、金属质感较强、不同视角下形成的干涉纹理图案变化明显。此外,由于不需要形成第一镀膜层440,可减小膜片400的厚度,使膜片400的加工工艺更加简单,成本更低。
油墨层450可以填平因第一凸起结构421凸出而形成的凹陷结构。
油墨层450的折射率与第一凸起结构421的折射率不同。
在第一凸起表面与油墨层450相接、且第一侧面411被第一凸起结构421覆盖时,油墨层450设置在第一凸起结构421的表面,油墨层450覆盖所有的第一凸起结构421的第一凸起表面。
在第一凸起表面与油墨层450相接、且第一侧面411包括被第一凸起结构421覆盖的第一区域以及不被第一凸起结构421覆盖的第二区域时,油墨层450设置在第一凸起结构421的表面以及第一侧面411的第二区域,油墨层450覆盖所有的第一凸起结构421的第一凸起表面以及第一侧面411的第二区域。
图10为本申请实施例提供的又一种膜片的示意图。
如图10所示,在膜片400包括透明粘接层470的示例中,第二纹理层430位于承载层410与透明粘接层470之间,在膜片400粘接到基板300上前,膜片400还可以包括离型膜480,离心膜覆盖在透明粘接层470远离承载层410一侧的表面,以便于膜片400的运输、存储。在需要将膜片400粘接到基板300上时,可先将离型膜480从透明粘接层470的表面剥离,然后再通过透明粘接层470将膜片400粘接到基板300上。
图11为本申请实施例提供的又一种盖板的承载层和第一纹理层的示意图。
如图11所示,在一些可能的实施方式中,第一凸起表面的至少一个为平面的反射面相对于第一侧面411倾斜。例如,第一凸起表面的一个反射面为第三平面4211c、另一个反射面为第四平面4211d,也就是说,第一凸起表面可以包括第三平面4211c和第四平面4211d,第三平面4211c和第四平面4211d均用于反射来自承载层410的光线,第三平面4211c和第四平面4211d中的至少一个相对于第一侧面411倾斜。
这样,便于在与膜片400相倾斜的视角下形成亮度、光泽度较高的干涉纹理图案。此外,也便于将第一凸起表面的多个反射面布置在由承载层410射入第一凸起结构421的光线的光路上,当由承载层410射入第一凸起结构的光线的光路上布置有多个反射面时,可通过第一凸起表面反射形成多个不同射向的反射光线,以便于实现光影多变的外观效果。
示例性的,第三平面4211c和第四平面4211d可以均相对于第一侧面411倾斜。
在一些可能的实施方式中,第一凸起表面沿承载层410的厚度方向的投影位于连接面4212沿承载层410的厚度方向的投影内。这样,可使第一凸起结构421在第一侧面上形成较为容易。
在一些示例中,第一凸起表面的轮廓围成的面积由靠近承载层410的一端向远离承载层410的一端逐渐减小。
这样,第一凸起表面的各个面均能对由承载层410射入第一凸起结构421的光线进行较好的反射,便于实现光影多变的外观效果。另外,被第一凸起表面反射形成的反射光线能够进入用户视线的数量较多,形成的干涉纹理图案的亮度和光泽度较高。
继续参看图11,图11中,P为第一凸起结构421的反射面的中心处的法线的法线交点,H1为第一凸起结构421远离承载层410的一端与承载层410之间的间距,H2为承载层410的厚度,L为法线交点与第一凸起结构421远离承载层410的一端之间的间距。在一些可能的实施方式中,在同一个第一凸起结构421中,所有的反射面的中心处的法线相交于同一个法线交点P,也就是说,所有的反射面的中心处的法线相交于同一点,该点我们称之为第一凸起结构421的法线交点P,法线交点P与第一凸起结构421远离承载层410的一端之间的间距为L,第一凸起结构421远离承载层410的一端与承载层410之间的间距为H1,承载层410的厚度为H2,L=2(H1+H2)。
这样,可使形成的干涉纹理图案的变化较为丰富,膜片400在不同视角下的变化较为多样。此外,可使形成的干涉纹理图案随视角的变化而变化时较为连续。
在一些可能的实施方式中,第一凸起表面的至少一个反射面为曲面,也就是说,第一凸起表面包括用于反射来自承载层410的光线的曲面。在同一个第一凸起结构421中,所有为平面的反射面的中心处的法线均穿过法线交点P,所有为曲面的反射面的中心处的法线也穿过法线交点P。
不同的第一凸起结构421的法线交点P不同。
图12为本申请实施例提供的一种第一纹理层的在第一侧面上的示意图。
如图12所示,在一些可能的实施方式中,第一凸起结构421为凸多面体结构,也就是说,第一凸起表面由多个平面组成,此时,第一凸起表面的每个反射面均为平面。
这样,便于在多个不同视角均能形成亮度、光泽度较高的干涉纹理图案。
示例性的,第一凸起结构421可以为四面体结构、五面体结构等。
在第一凸起表面由多个平面组成的一些示例中,第一凸起表面的每个平面均相对于第一侧面411倾斜,也就说,第一凸起表面的每个反射面均为相对于第一侧面411倾斜的平面。
这样,第一凸起表面的聚光效果较好,能够进入用户视线的反射光线较多,可使形成的干涉纹理图案的亮度、光泽度较高。
在一些示例中,第一纹理层420的多个第一凸起结构421在第一侧面411上矩阵排布。如此,第一纹理层420形成较为容易。
在一些示例中,第一纹理层420的多个第一凸起结构421在第一侧面411上呈蜂窝状排布。
如此,便于实现第一凸起结构421的高密布置,利于提高形成的干涉纹理图案的分辨率。此外,也利于形成较为丰富的干涉纹理图案。
图13为本申请实施例提供的又一种第一纹理层在第一侧面上的示意图。
如图13所示,在一些可能的实施方式中,第一凸起结构421可以为两端沿直线延伸的凸棱结构,多个第一凸起结构421在第一侧面411上平行排布。如此,形成第一纹理层420较为容易。
图14为本申请实施例提供的又一种盖板的承载层和第一纹理层的示意图。
如图14所示,在一些示例中,第一凸起表面的至少一个反射面为曲面,也就是说,第一凸起表面包括用于反射来自承载层410的光线的曲面。例如,第一凸起表面可以包括第五平面4211e和第一曲面4213a,第五平面4211e和第一曲面4213a均用于反射来自承载层410的光线。
这样,可使形成的第一纹理图案的变化较为丰富,进而可使形成的干涉纹理图案的变化较为丰富,膜片400在不同视角下的变化较为多样。
在一些示例中,为曲面的反射面的一侧边与连接面4212相连、另一侧边与为平面的反射面相连。例如,如图14中所示,第一曲面4213a的一侧面与连接面4212相连、另一侧边与第五平面4211e的一侧边相连,第五平面4211e的另一侧边与连接面4212相连。
图15为本申请实施例提供的又一种盖板的承载层和第一纹理层的示意图。
在另一些示例中,为曲面的反射面可以与多个为平面的反射面相连,为曲面的反射面可以通过为平面的反射面与连接面相连。例如,第一凸起表面可以包括第六平面4211f、第七平面4211g和第二曲面4213b,第六平面4211f、第七平面4211g和第二曲面4213b均用于反射来自承载层410的光线,第二曲面4213b与第六平面4211f和第七平面4211g相连,第二曲面4213b可以通过第六平面4211f和第七平面4211g与连接面4212相连。
示例性的,第二曲面4213b可以位于第一凸起表面远离第一侧面411的一端。
图16为本申请实施例提供的又一种盖板的承载层和第一纹理层的示意图。
如图16所示,为平面的反射面可以与多个为曲面的反射面相连。例如,第一凸起表面可以包括第八平面4211h、第三曲面4213c和第四曲面4213d,第八平面4211h、第三曲面4213c和第四曲面4213d均用于反射来自承载层410的光线,第八平面4211h与第三曲面4213c和第四曲面4213d相连,第八平面4211h可以通过第三曲面4213c和第四曲面4213d与连接面4212相连。
在一些示例中,其中一个反射面为相对于第一侧面平行的平面。例如,第八平面4211h相对于第一侧面411平行。
示例性的,第八平面4211h可以位于第一凸起表面远离第一侧面411的一端。
在另一些示例中,第三曲面4213c和第四曲面4213d中的至少一个也可以被为平面的反射面替换。
在同一个第一凸起表面上,对于为平面的反射面和为曲面的反射面的数量以及相互间的连接关系本申请不做限定,只要第一凸起表面至少有一个反射面为平面即可。
图17为本申请实施例提供的又一种盖板的示意图。
如图17所示,在一些可能的实施方式中,第二纹理层430包括着色结构431,着色结构431用于形成第二纹理图案。这样,可以通过使着色结构431被第一凸起表面反射形成的反射光线照射来形成第二纹理图案,对第二纹理层430的结构的限制较小,此时,可使第二纹理层430背离承载层410的一侧为平面,使得在第二纹理层430背离承载层410的一侧设置透明粘接层470较为方便。
着色结构431可以为由油墨、彩色光刻胶等中的一种或者多种形成的结构。
在第二纹理层430包括着色结构431的一些示例中,第二纹理层430还可以包括基材结构432,着色结构431可以嵌设在基材结构432的表面或者基材结构432的内部。
基材结构432可以由固化材料形成,该固化材料可以包括但不限于为光固化材料或者热固化材料,例如,该固化材料可以包括但不限于为环氧树脂、酚醛树脂等。
在一些示例中,基材结构432可以由紫外光固化胶形成,可以通过紫外光固化胶压印工艺在铺设于第二侧面的紫外光固化胶背离承载层410的一侧形成凹陷结构,以形成具有凹陷结构的基材结构432,再在基材结构432的凹陷结构内嵌设着色结构431。
在另一些示例中,基材结构432可以由光刻胶形成,可以通过光刻工艺在铺设于第二侧面的光刻胶背离承载层410的一侧形成凹陷结构,以形成具有凹陷结构的基材结构432,再在基材结构432的凹陷结构内嵌设着色结构431。
着色结构431可以将基材结构432的凹陷结构填平。或者,着色结构431也可以凸出于基材结构432背离承载层410的一侧。或者,着色结构431可以填充基材结构432的凹陷结构的部分,基材结构432的凹陷结构的部分由其他的结构层填充,例如,基材结构432的凹陷结构的部分可以由透明粘接层470填充。
在一些示例中,第二纹理层430与透明粘接层470相接,也就是说的,第二纹理层430与透明粘接层470之间不再设置其他的结构层。如此,可使膜片400的加工工艺较为简单,成本较低。
图18为本申请实施例提供的又一种盖板的示意图。
如图18所示,在一些可能的实施方式中,第二纹理层430包括朝远离承载层410的方向凸出的第二凸起结构433,第二凸起结构433用于形成第二纹理图案。第二凸起结构433包括凸出第二侧面412的第二凸起表面,第二凸起表面用于折射由承载层410射向第二凸起表面的光线。经第一凸起表面反射的光线在射过第二凸起表面时发生折射可形成第二纹理图案。
这样,经第一凸起表面反射的光线在第二凸起表面处发生折射时,可使在第二凸起表面的不同位置射出的光线的射向不同,使得在不同视角下可以形成不同的第二纹理图案,进而可使形成的干涉纹理图案的变化更加丰富。
第二凸起结构433可以与第一凸起结构421相同,第二凸起结构433也可以与第一凸起结构421不同。
在第二纹理层430包括第二凸起结构433的示例中,第二凸起结构433可以由固化材料形成,该固化材料可以包括但不限于为光固化材料或者热固化材料,例如,该固化材料可以包括但不限于为环氧树脂、酚醛树脂等。
在第二纹理层430包括朝远离承载层410的方向凸出的第二凸起结构433的一些示例中,第二凸起结构433可以由紫外光固化(ultraviolet rays,UV)胶形成,可以通过紫外光固化胶压印工艺在第二侧面412形成第二凸起结构433。
在第二纹理层430包括多个朝远离承载层410的方向凸出的第二凸起结构433的另一些示例中,第二凸起结构433可以由光刻胶形成,可以通过光刻工艺在第二侧面412形成第二凸起结构433。
在第二纹理层430包括着色结构431的一些示例中,着色结构431可以集成在第二凸起结构433上,也就是说,第二凸起结构433可以为着色结构431,或是第二凸起结构433可以包括着色结构431。
第二纹理层430可以包括多个第二凸起结构433.
在一些示例中,第二凸起结构433可以在第二侧面412上连续设置。
在另一些示例中,第二凸起结构433也可以在第二侧面412上间隔设置。
在第二纹理层430包括朝远离承载层410的方向凸出的第二凸起结构433的一些示例中,透明粘接层470与第二凸起表面相接,也就是说,第二凸起表面与透明粘接层470之间没有其他的结构层,透明粘接层470的折射率与第二凸起结构433的折射率不同。此时,透明粘接层470可以填平因第二凸起结构433凸出而形成的凹陷结构。
这样,与第二凸起结构433的折射率不同的透明粘接层470可使第二凸起表面处的界面清晰,可提高形成的第二纹理图案的清晰度,可使不同视角下形成的干涉纹理图案变化明显。此外,第二凸起表面与透明粘接层470之间可以不设置其他的结构层,可使具有第二凸起结构433的膜片400的加工工艺较为简单,成本较低。
在第二凸起表面与透明粘接层470相接、且第二侧面412被第二凸起结构433覆盖时,透明粘接层470设置在第二凸起结构433的表面,透明粘接层470覆盖所有的第二凸起结构433的第二凸起表面。
在第二凸起表面与透明粘接层470相接、且第二侧面412包括被第二凸起结构433覆盖的第三区域以及不被第二凸起结构433覆盖的第四区域时,透明粘接层470设置在第二凸起结构433的表面以及第二侧面412的第四区域,透明粘接层470覆盖所有的第二凸起结构433的第二凸起表面以及第二侧面412的第四区域。
在第二纹理层430包括朝远离承载层410的方向凸出的第二凸起结构433的一些示例中,第二凸起表面可以为曲面。如此,可形成的第二纹理图案较为丰富,可使第二纹理图案随视角的变化而连续变化。
示例性的,第二凸起表面可以用于形成透镜结构。
在第二纹理层430包括朝远离承载层410的方向凸出的第二凸起结构433的另一些示例中,第二凸起表面可以包括一个或者多个平面,或者,第二凸起表面可以包括一个或者多个平面、以及一个或者多个曲面。
图19为本申请实施例提供的又一种盖板的示意图。
如图19所示,示例性的,第二凸起表面包括多个折射面,折射面用于折射来自承载层410的光线,至少一个折射面为平面。如此,可使形成的干涉纹理图案的亮度和光泽度较高。
在一些示例中,第二凸起表面的至少一个折射面为相对于第二侧面412倾斜的平面。
在一些示例中,第二凸起表面的其中一个折射面为相对于第二侧面412平行的平面。
在一些示例中,第二凸起表面的至少一个折射面为曲面。
在一些可能的实施方式中,膜片400还包括第二镀膜层490。第二纹理层430位于承载层410与第二镀膜层490之间,第二凸起表面与第二镀膜层490相接,第二镀膜层490的折射率与第二凸起结构433的折射率不同。
这样,通过设置的第二镀膜层490可使第二凸起表面处的界面清晰,可提高形成的第二纹理图案的清晰度,可使不同视角下形成的干涉纹理图案变化明显。另外,还可以通过第二镀膜层490来改变形成的干涉纹理图案的颜色、通透性等外观效果,可使膜片400能够提供的外观效果较为丰富。此外,可以降低对透明粘接层470选材的限制,可以选用折射率与第二凸起结构433相同或者相近的透明粘接层470来粘接膜片400。
在第二凸起表面与第二镀膜层490相接、且第二侧面412被第二凸起结构433覆盖时,第二镀膜层490设置在第二凸起结构433的表面,第二镀膜层490覆盖所有的第二凸起结构433的第二凸起表面。
在第二凸起表面与第二镀膜层490相接、且第二侧面412包括被第二凸起结构433覆盖的第三区域以及不被第二凸起结构433覆盖的第四区域时,第二镀膜层490设置在第二凸起结构433的表面以及第二侧面412的第四区域,第二镀膜层490覆盖所有的第二凸起结构433的第二凸起表面以及第二侧面412的第四区域。
示例性的,第二镀膜层490可以为金属氧化物层。例如,第二镀膜层490可以由以下材料中的一种或者多种形成:氟化镁、二氧化钛、氧化锆、氧化铌等。
示例性的,第二镀膜层490可以由非导电真空电镀(non conductive vacuum metalize,NCVM)工艺、等离子体增强化学气相沉积(plasma enhanced chemical vapor deposition,PECVD)工艺、金属有机化合物化学气相沉积(metal organic chemical vapor deposition,MOCVD)工艺、电化学沉积工艺、射频(radio frequency,RF)溅射工艺、直流溅射(direct current,DC)工艺等中的一种或者多种工艺形成。
示例性的,第二镀膜层490的厚度可以为20~400nm。
在膜片400包括第二镀膜层490的一些示例中,第二镀膜层490背离承载层410的一侧与透明粘接层470相接,透明粘接层470可以填平第二镀膜层490因设置在第二凸起结构433表面而形成的凹陷结构。
在一些可能的实施方式中,第二纹理层430可以包括光学超表面结构,光学超表面结构用于形成第二纹理图案。如此,可以通过光学超表面结构对光线的折射来形成第二纹理图案,可使形成的第二纹理图案较为丰富,进而可使形成的干涉纹理图案较为丰富。
在一些示例中,光学超表面结构为形成在第二侧面412的凹凸结构。在光学超表面结构为形成在第二侧面412的凹凸结构时,第二凸起结构433可以为光学超表面结构的光学超表面单元。
在第二纹理层430包括基材结构432的一些示例中,光学超表面结构可以设置在基材结构432内,第二纹理层430背离承载层410的一侧可以为平面。
在一些可能的实施方式中,第二纹理层430可以包括法布里-珀罗谐振腔结构,法布里-珀罗谐振腔结构用于形成第二纹理图案。如此,可以通过法布里-珀罗谐振腔结构对光线的谐振来形成第二纹理图案,便于对形成的第二纹理图案进行控制。
在本申请实施例的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应作广义理解,例如,可以是固定连接,也可以是通过中间媒介间接相连,可以是两个元件内部的连通或者两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请实施例中的具体含义。
在本申请实施例或者暗示所指的装置或者元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请实施例的限制。在本申请实施例的描述中,“多个”的含义是两个或两个以上,除非是另有精确具体地规定。
本申请实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请实施例的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本文中的术语“多个”是指两个或两个以上。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系;在公式中,字符“/”,表示前后关联对象是一种“相除”的关系。
可以理解的是,在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分,并不用来限制本申请的实施例的范围。
可以理解的是,在本申请的实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请的实施例的实施过程构成任何限定。
Claims (18)
- 一种膜片,其特征在于,包括承载层、第一纹理层和第二纹理层;所述承载层具有第一侧面和第二侧面,所述第一侧面和所述第二侧面分别位于所述承载层的厚度方向上的两侧,所述第一纹理层设置在所述第一侧面,所述第二纹理层设置在所述第二侧面;所述第一纹理层包括朝远离所述承载层的方向凸出的第一凸起结构,所述第一凸起结构用于形成第一纹理图案;所述第二纹理层用于形成第二纹理图案,所述第一纹理图案与所述第二纹理图案叠加形成干涉纹理图案;其中,所述第一凸起结构包括凸出于所述第一侧面的第一凸起表面,所述第一凸起表面包括多个反射面,所述反射面用于反射由所述承载层射向所述反射面的光线,至少一个所述反射面为平面。
- 根据权利要求1所述的膜片,其特征在于,至少一个所述平面相对于所述第一侧面倾斜。
- 根据权利要求2所述的膜片,其特征在于,所述第一凸起结构为凸多面体结构。
- 根据权利要求3所述的膜片,其特征在于,所述第一凸起表面由多个所述平面组成,每个所述平面均相对于所述第一侧面倾斜。
- 根据权利要求1或2所述的膜片,其特征在于,至少一个所述反射面为曲面。
- 根据权利要求1-5任一项所述的膜片,其特征在于,所述第一凸起结构还包括与所述第一侧面相连的连接面,所述第一凸起表面沿所述承载层的厚度方向的投影位于所述连接面沿所述承载层的厚度方向的投影内。
- 根据权利要求6所述的膜片,其特征在于,所述第一凸起表面的轮廓围成的面积由靠近所述承载层的一端向远离所述承载层的一端逐渐减小。
- 根据权利要求1-7任一项所述的膜片,其特征在于,在同一个第一凸起结构中,所有的所述反射面的中心处的法线相交于同一个法线交点,所述法线交点与所述第一凸起结构远离所述承载层的一端之间的间距为L,第一凸起结构远离所述承载层的一端与所述承载层之间的间距为H1,所述承载层的厚度为H2,L=2(H1+H2)。
- 根据权利要求1-8任一项所述的膜片,其特征在于,还包括第一镀膜层;所述第一纹理层位于所述承载层与所述第一镀膜层之间,所述第一凸起表面与所述第一镀膜层相接,所述第一镀膜层的折射率与所述第一凸起结构的折射率不同。
- 根据权利要求9所述的膜片,其特征在于,还包括油墨层;所述油墨层位于所述第一镀膜层远离所述承载层的一侧,所述油墨层设置在所述第一镀膜层的表面。
- 根据权利要求1-8任一项所述的膜片,其特征在于,还包括油墨层;所述第一纹理层位于所述承载层与所述油墨层之间,所述第一凸起表面与所述油墨层相接。
- 根据权利要求1-11任一项所述的膜片,其特征在于,所述第二纹理层包括着色结构;所述着色结构用于形成所述第二纹理图案。
- 根据权利要求1-12任一项所述的膜片,其特征在于,所述第二纹理层包括朝远离所述承载层的方向凸出的第二凸起结构,所述第二凸起结构用于形成所述第二纹理图案;其中,所述第二凸起结构包括凸出于所述第二侧面的第二凸起表面,所述第二凸起表面用于折射由所述承载层射向所述第二凸起表面的光线。
- 根据权利要求13所述的膜片,其特征在于,还包括第二镀膜层;所述第二纹理层位于所述承载层与所述第二镀膜层之间,所述第二凸起表面与所述第二镀膜层相接,所述第二镀膜层的折射率与所述第二凸起结构的折射率不同。
- 根据权利要求1-14任一项所述的膜片,其特征在于,所述第二纹理层包括光学超表面结构,所述光学超表面结构用于形成所述第二纹理图案。
- 根据权利要求1-15任一项所述的膜片,其特征在于,所述第二纹理层包括法布里-珀罗谐振腔结构,所述法布里-珀罗谐振腔结构用于形成所述第二纹理图案。
- 一种盖板,其特征在于,包括如权利要求1-16任一项所述的膜片以及可透光的基板;所述膜片设置在所述基板的内表面,所述膜片的第二纹理层位于所述基板与所述膜片的承载层之间。
- 一种电子设备,其特征在于,包括如权利要求17所述的盖板。
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| CN112848563A (zh) * | 2019-11-27 | 2021-05-28 | 北京小米移动软件有限公司 | 玻璃壳体及其制造方法、电子设备 |
| WO2023063690A1 (ko) * | 2021-10-13 | 2023-04-20 | 삼성전자주식회사 | 전자 장치 하우징 및 이를 포함하는 전자 장치 |
| CN114407473A (zh) * | 2022-02-11 | 2022-04-29 | Oppo广东移动通信有限公司 | 壳体组件及其制备方法和电子设备 |
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