Anti-peeping light-transmitting device
By using privacy and light-transmitting devices on electronic products and automotive glass, the problem of poor light-blocking effect caused by gaps in the heat insulation paper is solved, and the privacy, light-blocking and heat insulation functions can be adjusted to meet the needs of different usage scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2026-03-31
AI Technical Summary
Gaps can easily form when using heat-insulating film on electronic product displays and automotive windows, resulting in poor light-blocking and heat-insulating effects. At the same time, user privacy is easily violated when using them in public places.
It adopts a privacy and light-transmitting device, which includes a light-transmitting layer, a filling layer and a privacy light grid arranged at intervals. It achieves privacy, light blocking and heat insulation functions by setting multiple light-blocking structures. The privacy rate, light blocking rate and heat insulation rate can be adjusted by adjusting the size and distance of the light-blocking structures.
It achieves improved privacy, light blocking, and heat insulation while maintaining sufficient visibility, adapting to the needs of different usage scenarios.
Smart Images
Figure CN121763470A_ABST
Abstract
Description
Technical Field
[0001] This application relates to a privacy-protecting and light-transmitting device with privacy / light-blocking / heat-insulating functions. Background Technology
[0002] With the development of technology, smartphones and tablets have become indispensable personal items for modern people. However, when a user uses an electronic product with a display in a public place, any passerby can see the screen, thus infringing on the user's privacy.
[0003] In addition, most existing cars use heat-insulating film as a means of shading and heat insulation for their front / rear / side windows. However, when the heat-insulating film is applied to the glass, some gaps may form between the film and the glass, resulting in air bubbles, which reduces the shading and heat insulation effect of the film. Summary of the Invention
[0004] In view of this, the inventors propose a privacy-protecting light-transmitting device to replace the display glass screen in electronic products or the front / rear / side windows in automobiles, thereby achieving privacy / light-blocking / heat-insulating functions. In some embodiments, the privacy-protecting light-transmitting device includes a light-transmitting layer, a filling layer, and a plurality of privacy light gratings. The filling layer is disposed on a surface of the light-transmitting layer. The plurality of privacy light gratings are disposed in the filling layer and spaced apart along a first direction. Each privacy light grating includes a plurality of light-blocking structures. The plurality of light-blocking structures are spaced apart along a second direction and a third direction. The first direction, the second direction, and the third direction are orthogonal to each other. A top surface and a bottom surface of each light-blocking structure are parallel to the surface of the light-transmitting layer, and the bottom surface of each light-blocking structure faces the surface of the light-transmitting layer.
[0005] In some embodiments, each light-shielding structure is a trapezoid, and the area of the top surface of each light-shielding structure is smaller than the area of the bottom surface of each light-shielding structure.
[0006] In some embodiments, the height of each light-shielding structure is less than the distance between two adjacent columns in each privacy grating.
[0007] In some embodiments, the width of each light-shielding structure is less than the distance between two adjacent privacy screens.
[0008] In some embodiments, the distance between two adjacent columns of each privacy shutter is less than the distance between two adjacent privacy shutters.
[0009] The inventors propose another privacy-protecting light-transmitting device. In some embodiments, the alternative privacy-protecting light-transmitting device includes a light-transmitting layer, a filling layer, and a plurality of privacy light gratings. The filling layer is disposed on a surface of the light-transmitting layer. The plurality of privacy light gratings are disposed in the filling layer and spaced apart along a first direction. Each privacy light grating includes a plurality of first light-blocking structures and a plurality of second light-blocking structures. The plurality of first light-blocking structures are spaced apart along a second direction to form a first array. The plurality of second light-blocking structures are spaced apart along the second direction and a third direction to form a second array. The first direction, the second direction, and the third direction are orthogonal to each other. The entire projection of the first light-blocking structures in each row of each privacy light grating onto the surface overlaps with the partial projection of the plurality of second light-blocking structures in each row of each privacy light grating onto the surface.
[0010] In some embodiments, the distance between the first array and the second array is greater than the distance between two adjacent columns in the second array.
[0011] In some embodiments, the distance between two adjacent columns in the second array is less than the distance between two adjacent privacy shutters.
[0012] In some embodiments, the height of each second light-shielding structure is less than the distance between two adjacent columns in the second array.
[0013] In some embodiments, the width of each second light-shielding structure is less than the distance between two adjacent privacy screens.
[0014] In summary, according to any of the above embodiments, the privacy and light-transmitting device is provided with multiple light-blocking structures arranged at intervals to block light, thereby achieving privacy / light-blocking / heat-insulating functions. Furthermore, the privacy and light-transmitting device's parameters (e.g., privacy rate, light-blocking rate, and heat-insulating rate) can be adjusted by changing the size of the light-blocking structures and / or the distance between adjacent light-blocking structures, thus allowing for the selection of privacy and light-transmitting devices with corresponding parameters for various usage scenarios. Attached Figure Description
[0015] Figure 1 This is a perspective view of the privacy and light-transmitting device of the first embodiment.
[0016] Figure 2 yes Figure 1 Top view of the privacy and light-transmitting device.
[0017] Figure 3 yes Figure 1 The first demonstration sample of the privacy light-transmitting device is shown in a cross-sectional view along section line 1-1.
[0018] Figure 4 yes Figure 1 The first demonstration sample of the privacy light-transmitting device is shown in cross-section along section line 2-2.
[0019] Figure 5 yes Figure 1 Cross-sectional view of the privacy and light-transmitting device of the second demonstration state.
[0020] Figure 6 yes Figure 1 Cross-sectional view of the privacy and light-transmitting device of the third demonstration state.
[0021] Figure 7 yes Figure 1 Cross-sectional view of the privacy and light-transmitting device of the fourth demonstration state in China.
[0022] Figure 8 This is a perspective view of the privacy and light-transmitting device of the second embodiment.
[0023] Figure 9 yes Figure 8 Top view of the privacy and light-transmitting device.
[0024] Figure 10 This is a perspective view of the privacy and light-transmitting device of the third embodiment.
[0025] Figure 11 yes Figure 10 Top view of the privacy and light-transmitting device.
[0026] Figure 12 yes Figure 8 A cross-sectional view of the privacy screen light-transmitting device along section line 3-3.
[0027] Figure 13 yes Figure 10 A cross-sectional view of the privacy screen light-transmitting device along section line 5-5.
[0028] Figure 14 yes Figure 8 ( Figure 10 A cross-sectional view of the privacy and light-transmitting device along section line 4-4 (section line 6-6).
[0029] In the attached figures, the following labels are used:
[0030] 2: Anti-peeping and light-transmitting device
[0031] 20: Translucent layer
[0032] 21: Fill layer
[0033] 22: Privacy light grating
[0034] 220: Light-shielding structure
[0035] 221: Light-shielding structure
[0036] 222: Light-shielding structure
[0037] D1: Distance
[0038] D2: Distance
[0039] D3: Distance
[0040] H0: Height
[0041] H2: Height
[0042] LT1: Light
[0043] LT1': Light
[0044] LT2: Light
[0045] LT2': Light
[0046] LT3: Light
[0047] LT4: Light
[0048] LTM: Light
[0049] P1: Location
[0050] SB: Bottom
[0051] SF: Surface
[0052] ST: Top surface
[0053] W0: Width
[0054] W1: Width
[0055] W2: Width Detailed Implementation
[0056] Regarding the terminology used herein, it should be clear that: the term "comprising" is an open-ended term and should therefore be interpreted as "including but not limited to"; terms such as "located in" or "located in" refer to two or more components that are in "direct" physical or electrical contact with each other, or that are in "indirect" physical or electrical contact with each other; and terms such as "a," "another," "first," "second," and "third" are used to distinguish the components referred to, and unless otherwise specified, are not used to order or limit the differences between the components referred to, nor are they used to limit the scope of this application.
[0057] Please refer to Figure 1 and Figure 2 , Figure 1 This is a perspective view of the privacy-protecting light-transmitting device 2 of the first embodiment, and Figure 2 yes Figure 1 A top view of a privacy light-transmitting device 2. The privacy light-transmitting device 2 includes a light-transmitting layer 20, a filling layer 21, and a plurality of privacy light gratings 22. The filling layer 21 is disposed on a surface SF of the light-transmitting layer 20, and the plurality of privacy light gratings 22 are disposed in the filling layer 21 and arranged at intervals along a first direction. Figure 1 and Figure 2 For example, in this embodiment, the privacy light-transmitting device 2 includes four privacy light gratings 22, and these four privacy light gratings 22 are arranged at intervals along a first direction (corresponding to the X direction in the rectangular coordinate system).
[0058] Please refer to further details. Figure 3 and Figure 4 , Figure 3 yes Figure 1 The first demonstration sample of the privacy light-transmitting device 2 is shown in a cross-sectional view along section line 1-1, and Figure 4 yes Figure 1 The first exemplary anti-peeping light-transmitting device 2 is shown in a cross-sectional view along section line 2-2. In other words, Figure 3 yes Figure 1 A front cross-sectional view of the privacy light-transmitting device 2, and Figure 4 yes Figure 1 A side cross-sectional view of the privacy light-transmitting device 2. In some embodiments, each privacy light grating 22 includes a plurality of light-shielding structures 220, and the plurality of light-shielding structures 220 are arranged at intervals along a second direction and a third direction. Figure 3 and Figure 4 For example, in this embodiment, each privacy shutter 22 includes 12 light-blocking structures, and these 12 light-blocking structures are arranged at intervals along a second direction (corresponding to the Y direction in a Cartesian coordinate system) and a third direction (corresponding to the Z direction in a Cartesian coordinate system). Here, in some embodiments, the first direction (corresponding to the X direction), the second direction (corresponding to the Y direction), and the third direction (corresponding to the Z direction) are orthogonal to each other.
[0059] In some embodiments, each light-shielding structure 220 can be a rectangular body (e.g., Figures 1 to 4 (As shown). Furthermore, in some embodiments, the light-shielding structure 220 is used to block some of the light entering the privacy light-transmitting device 2. Figure 3 For example, in this embodiment, when a user's line of sight is at position P1 in the privacy light-transmitting device 2, the maximum range of light that the user can receive at position P1 is between light ray LT1 and light ray LT1' (hereinafter referred to as a first range). It should be noted that, due to the influence of the light-blocking structure 220, the user at position P1 may not necessarily receive all the light within the first range. For example, although... Figure 3 The light ray LTM shown is located in the first range between light ray LT1 and light ray LT1'. Light ray LTM will still be blocked by the light-blocking structure 220, so the user cannot receive light ray LTM at position P1.
[0060] Please refer to further details. Figure 5 , Figure 5 yes Figure 1 A cross-sectional view of the privacy light-transmitting device 2 in the second demonstration state (corresponding to...) Figure 3 ).like Figure 5 As shown, in some embodiments, each light-shielding structure 220 may be a trapezoid, and the area of the top surface ST of each light-shielding structure 220 is smaller than the area of the bottom surface SB of each light-shielding structure 220. In other words, the side length of the top surface ST of each light-shielding structure 220 is smaller than the side length of the bottom surface SB of each light-shielding structure 220.
[0061] In some embodiments, in response to the area of the bottom surface SB of the rectangular light-shielding structure 220 being equal to the area of the bottom surface SB of the trapezoidal light-shielding structure 220, the trapezoidal light-shielding structure 220 allows more light to enter the privacy light-transmitting device 2 (compared to the rectangular light-shielding structure 220). Figure 5 For example, in this embodiment, when the user's line of sight is also located at position P1 in the privacy light-transmitting device 2, the maximum range of light that the user can receive at position P1 is between light ray LT2 and light ray LT2' (hereinafter referred to as a second range), and the second range between light ray LT2 and light ray LT2' is greater than the first range between light ray LT1 and light ray LT1' (e.g., Figure 5 (As shown). Here, the user can adjust the privacy rate / light blocking rate / heat insulation rate of the privacy light transmission device 2 by changing the shape of each light blocking structure 220.
[0062] Please refer to further details. Figure 6 , Figure 6 yes Figure 1 Cross-sectional view of the privacy light-transmitting device 2 of the third demonstration sample (corresponding to) Figure 3 ).like Figure 6 As shown, in some embodiments, the height H0 of each light-shielding structure 220 is less than the distance D1 between two adjacent columns of each privacy light barrier 22. Accordingly, the greater the height H0 of each light-shielding structure 220, the higher the privacy protection rate / light-shielding rate / heat insulation rate of the privacy light-transmitting device 2, and the smaller the visible range of the privacy light-transmitting device 2. Furthermore, in response to the greater distance D1 between two adjacent columns of each privacy light barrier 22, the lower the privacy protection rate / light-shielding rate / heat insulation rate of the privacy light-transmitting device 2, and the larger the visible range of the privacy light-transmitting device 2. Thus, in response to the height H0 of each light-shielding structure 220 being less than the distance D1 between two adjacent columns of each privacy light barrier 22, the privacy light-transmitting device 2 can ensure that it has sufficient privacy protection rate / light-shielding rate / heat insulation rate while also having sufficient visible range.
[0063] Furthermore, in some embodiments, the width W0 of each light-shielding structure 220 is smaller than the distance D2 between two adjacent privacy light gates 22 in the privacy light-transmitting device 2. Accordingly, the larger the width W0 of each light-shielding structure 220, the higher the privacy protection rate / light-shielding rate / heat insulation rate of the privacy light-transmitting device 2, and the smaller the visible range of the privacy light-transmitting device 2. Furthermore, in response to the larger distance D2 between two adjacent privacy light gates 22 in the privacy light-transmitting device 2, the lower the privacy protection rate / light-shielding rate / heat insulation rate of the privacy light-transmitting device 2, and the larger the visible range of the privacy light-transmitting device 2. Thus, in response to the width W0 of each light-shielding structure 220 being smaller than the distance D1 between two adjacent privacy light gates 22 in the privacy light-transmitting device 2, the privacy light-transmitting device 2 can ensure that it has sufficient privacy protection rate / light-shielding rate / heat insulation rate while also having sufficient visible range.
[0064] Please refer to further details. Figure 7 , Figure 7 yes Figure 1 A cross-sectional view of the privacy light-transmitting device 2 of the fourth demonstration sample (corresponding to...) Figure 3 ).like Figure 7 As shown, in some embodiments, the distance D1 between two adjacent columns of each privacy light barrier 22 is smaller than the distance D2 between two adjacent privacy light barriers 22 in the privacy light transmission device 2. The larger the distance D1 between two adjacent columns of each privacy light barrier 22, the lower the privacy protection rate / light blocking rate / heat insulation rate of the privacy light transmission device 2, and the larger the visible range of the privacy light transmission device 2. Furthermore, the larger the distance D2 between two adjacent privacy light barriers 22 in the privacy light transmission device 2, the lower the privacy protection rate / light blocking rate / heat insulation rate of the privacy light transmission device 2, and the larger the visible range of the privacy light transmission device 2. Therefore, since the distance D1 between two adjacent columns of each privacy light barrier 22 is smaller than the distance D2 between two adjacent privacy light barriers 22 in the privacy light transmission device 2, the privacy light transmission device 2 can ensure that it has sufficient privacy protection rate / light blocking rate / heat insulation rate while also having sufficient visible range.
[0065] Please refer to Figures 8 to 11 , Figure 8 and Figure 9 These are, respectively, a perspective view and a top plan view of the privacy-protecting light-transmitting device 2 of the second embodiment, and... Figure 10 and Figure 11 These are perspective and top plan views of the privacy light-transmitting device 2 according to the third embodiment. Another privacy light-transmitting device 2 includes a light-transmitting layer 20, a filling layer 21, and a plurality of privacy light gratings 22. The filling layer 21 is disposed on a surface SF of the light-transmitting layer 20, and the plurality of privacy light gratings 22 are disposed in the filling layer 21 and arranged at intervals along a first direction. Figure 8 and Figure 10For example, in some embodiments, the privacy light-transmitting device 2 includes four privacy light gratings 22, and these four privacy light gratings 22 are arranged at intervals along a first direction (corresponding to the X direction in a rectangular coordinate system).
[0066] Please refer to further details. Figures 12 to 14 , Figure 12 and Figure 13 They are respectively Figure 8 and Figure 10 The cross-sectional view of the privacy light-transmitting device 2 along sections 3-3 and 5-5, and Figure 14 for Figure 8 ( Figure 10 The cross-sectional view of the privacy and light-transmitting device 2 along section line 4-4 (section line 6-6). In other words, Figure 12 and Figure 13 They are respectively Figure 8 and Figure 10 A front cross-sectional view of the privacy light-transmitting device 2, and Figure 14 for Figure 8 or Figure 10 A side cross-sectional view of the privacy light-transmitting device 2. In some embodiments, each privacy light grating 22 includes a plurality of light-shielding structures 221 (hereinafter referred to as first light-shielding structures 221) and a plurality of other light-shielding structures 222 (hereinafter referred to as second light-shielding structures 222). The plurality of first light-shielding structures 221 are arranged in a first array at intervals along a second direction, and the plurality of second light-shielding structures 222 are arranged in a second array at intervals along the second direction and a third direction.
[0067] by Figures 12 to 14 For example, in this embodiment, each privacy screen grating 22 includes three first light-blocking structures 221 and six second light-blocking structures 222. The three first light-blocking structures 221 are arranged in a first array at intervals along a second direction (corresponding to the Y direction in a Cartesian coordinate system), and the six second light-blocking structures 222 are arranged in a second array at intervals along the second direction (corresponding to the Y direction in a Cartesian coordinate system) and a third direction (corresponding to the Z direction in a Cartesian coordinate system). In some embodiments, the first direction (corresponding to the X direction), the second direction (corresponding to the Y direction), and the third direction (corresponding to the Z direction) are orthogonal to each other.
[0068] In some embodiments, the entire projection of the first light-shielding structure 221 of each row in each privacy screen 22 onto the surface SF overlaps with the partial projection of the plurality of second light-shielding structures 222 of each row in each privacy screen 22 onto the surface SF. Figure 12 For example, in this embodiment, the entire projection of the first light-blocking structure 221 in the privacy light grating 22 onto the surface SF overlaps with the left half projection of the plurality of second light-blocking structures 222 in the privacy light grating 22 onto the surface SF, wherein the direction of the left half corresponds to the -X direction in the Cartesian coordinate system. Therefore, Figure 12 The privacy screen light-transmitting device 2 shown can receive light LT3 from the left (corresponding to the -X direction). Furthermore... Figure 13 For example, in this embodiment, the entire projection of the first light-blocking structure 221 in the privacy light grating 22 onto the surface SF overlaps with the right half projection of the plurality of second light-blocking structures 222 in the privacy light grating 22 onto the surface SF, wherein the direction of the right half corresponds to the X direction in the Cartesian coordinate system. Therefore, Figure 13 The privacy light-transmitting device 2 shown can receive light LT4 from the right side (corresponding to the X direction).
[0069] In some embodiments, the user can change the dimensions of the first light-blocking structure 221 and the second light-blocking structure 222 to adjust the ratio between the total projection of the first light-blocking structure 221 and the total projection of the second light-blocking structure 222 on the surface SF, thereby adjusting the range of light that the privacy light-transmitting device 2 can receive. For example, when this ratio is 30%, it means that the projected area of the first light-blocking structure 221 on the surface SF is 30% of the projected area of the second light-blocking structure 222 on the surface SF. As another example, when this ratio is 70%, it means that the projected area of the first light-blocking structure 221 on the surface SF is 70% of the projected area of the second light-blocking structure 222 on the surface SF. Therefore, the range of light that the privacy light-transmitting device 2 with this 30% ratio can receive will be greater than the range of light that the privacy light-transmitting device 2 with this 70% ratio can receive.
[0070] like Figures 12 to 14 As shown, in some embodiments, the distance D1 between the first array and the second array in each privacy light barrier 22 is greater than the distance D2 between two adjacent columns in the second array. Because the width W1 of the first light-blocking structure 221 is smaller than the width W2 of each second light-blocking structure 222, the privacy light-transmitting device 2 can receive light from the X direction or the -X direction (e.g., ...). Figure 12 The light rays shown are LT3 and Figure 13 As shown in the light beam LT4, the user can adjust the range of light received by the privacy light-transmitting device 2 by changing the distance D1 between the first array and the second array, thereby adjusting the visible range of the privacy light-transmitting device 2. Specifically, in response to the distance D1 between the first array and the second array in each privacy light grating 22 being greater than the distance D2 between two adjacent columns in the second array, the range of light received by the privacy light-transmitting device 2 from the left (corresponding to the -X direction) or right (corresponding to the X direction) will increase, thus increasing the visible range of the privacy light-transmitting device 2.
[0071] like Figures 12 to 14As shown, in some embodiments, the distance D2 between two adjacent columns in the second array of each privacy light barrier 22 is smaller than the distance D3 between two adjacent privacy light barriers 22. The larger the distance D2 between two adjacent columns in the second array of each privacy light barrier 22, the lower the privacy protection rate / light blocking rate / heat insulation rate of the privacy light-transmitting device 2, and the larger the visible range of the privacy light-transmitting device 2. Furthermore, the larger the distance D3 between two adjacent privacy light barriers 22 in the privacy light-transmitting device 2, the lower the privacy protection rate / light blocking rate / heat insulation rate of the privacy light-transmitting device 2, and the larger the visible range of the privacy light-transmitting device 2. Therefore, since the distance D2 between two adjacent columns in the second array of each privacy light barrier 22 is smaller than the distance D3 between two adjacent privacy light barriers 22 in the privacy light-transmitting device 2, the privacy light-transmitting device 2 can ensure that it has sufficient privacy protection rate / light blocking rate / heat insulation rate while also having sufficient visible range.
[0072] like Figures 12 to 14 As shown, in some embodiments, the height H2 of each second light-shielding structure 222 is less than the distance D2 between two adjacent columns in the second array. The greater the height H2 of each second light-shielding structure 222, the higher the privacy protection rate / light-shielding rate / heat insulation rate of the privacy-protecting light-transmitting device 2, and the smaller its visible range. Furthermore, the greater the distance D3 between two adjacent privacy light curtains 22 in the privacy-protecting light-transmitting device 2, the lower the privacy protection rate / light-shielding rate / heat insulation rate of the privacy-protecting light-transmitting device 2, and the larger its visible range. Thus, since the height H2 of each light-shielding structure 222 is less than the distance D2 between two adjacent columns in the second array, the privacy-protecting light-transmitting device 2 can ensure that it has sufficient privacy protection rate / light-shielding rate / heat insulation rate while also having sufficient visible range.
[0073] like Figures 12 to 14 As shown, in some embodiments, the width W2 of each second light-shielding structure 222 is smaller than the distance D3 between two adjacent privacy light gates 22 in the privacy light-transmitting device 2. Accordingly, the larger the width W2 of each second light-shielding structure 222, the higher the privacy protection rate / light-shielding rate / heat insulation rate of the privacy light-transmitting device 2, and the smaller the visible range of the privacy light-transmitting device 2. Furthermore, in response to the larger distance D3 between two adjacent privacy light gates 22 in the privacy light-transmitting device 2, the lower the privacy protection rate / light-shielding rate / heat insulation rate of the privacy light-transmitting device 2, and the larger the visible range of the privacy light-transmitting device 2. Thus, in response to the width W2 of each second light-shielding structure 222 being smaller than the distance D3 between two adjacent privacy light gates 22 in the privacy light-transmitting device 2, the privacy light-transmitting device 2 can ensure that it has sufficient privacy protection rate / light-shielding rate / heat insulation rate while also having sufficient visible range.
[0074] In some embodiments, the material of the light-transmitting layer 20 may be a rigid material that is transparent to light, such as, but not limited to, glass and acrylic. In other embodiments, the material of the light-transmitting layer 20 may be a rigid material that is transparent to light and resistant to ultraviolet rays, such as, but not limited to, polycarbonate (PC) and polymethyl methacrylate (PMMA).
[0075] In some embodiments, the filler layer 21 may be made of a light-transmitting material, such as, but not limited to, silicone, epoxy, polyimide (PI), benzocyclobutene (BCB), perfluorocyclobutane (PFCB), SU8, acrylic resin, polyethylene phthalate (PET), and polyetherimide. In other embodiments, the filler layer 21 may be made of an adhesive transparent material, such as, but not limited to, adhesives, underfill, anisotropic conductive adhesive (ACP), anisotropic conductive film (ACF), non-conductive adhesive (NCP), and non-conductive film (NCF).
[0076] In some embodiments, the material of each light-shielding structure 220 / 221 / 222 may be a black matrix (BM) material. In other embodiments, the material of each light-shielding structure 220 / 221 / 222 may be a light-reflective material, such as, but not limited to, metals, alumina, dielectric multilayer films, and reflective resin materials.
[0077] In summary, according to any of the above embodiments, the privacy and light-transmitting device is provided with multiple light-blocking structures arranged at intervals to block light, thereby achieving privacy / light-blocking / heat-insulating functions. Furthermore, the privacy and light-transmitting device's parameters (e.g., privacy rate, light-blocking rate, and heat-insulating rate) can be adjusted by changing the size of the light-blocking structures and / or the distance between adjacent light-blocking structures, thus allowing for the selection of privacy and light-transmitting devices with corresponding parameters for various usage scenarios.
Claims
1. A privacy see-through device, characterized by, Comprising: a light-transmissive layer; a filling layer disposed on a surface of the light-transmissive layer; and a plurality of anti-peep gratings disposed in the filling layer and spaced apart along a first direction, wherein each of the anti-peep gratings comprises: a plurality of light-shielding structures spaced apart along a second direction and a third direction; wherein the first direction, the second direction, and the third direction are orthogonal to each other; a top surface and a bottom surface of each of the light-shielding structures are parallel to the surface of the light-transmissive layer, and the bottom surface of each of the light-shielding structures faces the surface of the light-transmissive layer. Each of the light-shielding structures is a trapezoidal body, and an area of the top surface of each of the light-shielding structures is less than an area of the bottom surface of each of the light-shielding structures.
2. The privacy see-through device of claim 1, wherein, A height of each of the light-shielding structures is less than a distance between two adjacent rows of the anti-peep gratings.
3. The privacy viewing light transmission device of claim 1, wherein, A width of each of the light-shielding structures is less than a distance between two adjacent anti-peep gratings.
4. The privacy see-through device of claim 1, wherein, A distance between two adjacent rows of the anti-peep gratings is less than a distance between two adjacent anti-peep gratings.
5. The privacy viewing light transmission device of claim 1, wherein, Comprising:
6. A privacy see-through device, characterized by, a light-transmissive layer; a filling layer disposed on a surface of the light-transmissive layer; and a plurality of anti-peep gratings disposed in the filling layer and spaced apart along a first direction, wherein each of the anti-peep gratings comprises: a plurality of first light-shielding structures spaced apart along a second direction as a first array; and a plurality of second light-shielding structures spaced apart along the second direction and a third direction as a second array; wherein the first direction, the second direction, and the third direction are orthogonal to each other; all projections of the first light-shielding structures of each row in each of the anti-peep gratings on the surface overlap part of the projections of the plurality of second light-shielding structures of each row in each of the anti-peep gratings on the surface. A distance between the first array and the second array is greater than a distance between two adjacent rows of the second array. The distance between two adjacent rows of the second array is less than a distance between two adjacent anti-peep gratings.
7. The privacy viewing light transmission device of claim 6, wherein, A height of each of the second light-shielding structures is less than the distance between two adjacent rows of the second array.
8. The privacy viewing light transmission device of claim 6, wherein, A width of each of the second light-shielding structures is less than the distance between two adjacent anti-peep gratings.
9. The privacy viewing light transmission device of claim 6, wherein, 10. The privacy see-through device of claim 6, wherein,