Light-transmitting panel having active components

Abstract

To provide a controllable light transmissive panel.SOLUTION: A light transmissive panel assembly 1204 includes: a first panel 1206; a second panel 1208; a gap 1214 between the first panel and the second panel; a first active component 1232 disposed in the gap; and a second active component 1234 disposed in the gap. The first active component has controllable light transmissive characteristics.SELECTED DRAWING: Figure 12

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of U.S. Patent Application No. 62 / 571,470, filed Oct. 12, 2017, and entitled "Light Transmitting Panel with Active Components." This application claims the benefit of U.S. Patent Application No. 15 / 983,152, filed May 18, 2018, and entitled "Light Transmitting Panel with Active Components," the contents of which are incorporated herein by reference in their entireties for all purposes.

[0002] This application relates generally to light transmissive panels. [Background technology]

[0003] Panels made from glass and some plastics allow for the transmission of light and can also allow for the transmission of heat and sound. Summary of the Invention

[0004] One aspect of the disclosed embodiments is a light-transmitting panel assembly that includes a first panel, a second panel, a gap between the first panel and the second panel, and a first active component disposed within the gap, the first active component having controllable light transmission properties.

[0005] In some embodiments of the light-transmitting panel assembly, the first active component is connected to the first panel by an adhesive.

[0006] In some embodiments, the light-transmitting panel assembly includes a spacer that spaces the first active component from the first panel and spaces the first active component from the second panel. The spacer may include a support structure that suspends the first active component in the gap.

[0007] In some embodiments, the light-transmitting panel assembly includes a second active component disposed within the gap, the second active component having a controllable light-emitting characteristic. The first active component may be adjacent to the first panel, the second active component may be adjacent to the second panel, or the first active component may be spaced apart from the second panel. The first panel may have a first surface adjacent to the exterior space and a second surface, the second panel may have a first surface and a second surface adjacent to the interior space, the first active component may be attached to the second surface of the first panel, and the second active component may be attached to the first surface of the second panel.

[0008] In some embodiments, the first active component is variable between a translucent state and an opaque state.In some embodiments, the first active component is variable between a translucent state and a reflective state.

[0009] In some embodiments, the second active component is an edge-lit glass panel. The edge-lit glass panel may include a lighting device. The edge-lit glass panel may include a spacer disposed between the first panel and the second panel, separating the first panel from the second panel to define a gap, and the lighting device is located outwardly relative to the spacer. The edge-lit glass panel may include a frame, and an outer edge of the first panel extends outwardly relative to the lighting device, and the outer edge of the first panel is supported by the frame.

[0010] In some embodiments of the light-transmitting panel assembly, the first panel is a laminated structure and the second panel is a laminated structure. The first active component may be connected to the first panel by an adhesive and the second active component may be connected to the second panel by an adhesive. [Brief description of the drawings]

[0011] [Figure 1]FIG. 1 is a perspective view showing an assembly including a frame and a panel assembly according to a first embodiment.

[0012] [Diagram 2] 2 is a cross-sectional view of the assembly taken along line 2-2 of FIG. 1, including a first panel and a second panel of the panel assembly.

[0013] [Diagram 3] 3 is a detailed view showing the area indicated in FIG. 2, including an example of a connection of a first frame portion of a frame to a first panel and a second panel of the panel assembly of FIG. 1. FIG.

[0014] [Figure 4] FIG. 2 illustrates a first exemplary structure for a first panel of the panel assembly of FIG. 1.

[0015] [Diagram 5] 2 illustrates an example of a second layer of a first exemplary structure for a first panel of the panel assembly of FIG. 1 including variable light transmission.

[0016] [Figure 6] 2A-2C show a second exemplary configuration of the first panel of the panel assembly of FIG. 1.

[0017] [Figure 7] FIG. 2 illustrates a third exemplary structure of the first panel of the panel assembly of FIG. 1.

[0018] [Figure 8] FIG. 2 illustrates a first exemplary structure for the second panel of the panel assembly of FIG. 1.

[0019] [Figure 9] 2A-2C show a second exemplary configuration for the second panel of the panel assembly of FIG. 1.

[0020] [Figure 10]FIG. 2 illustrates a third exemplary configuration of the second panel of the panel assembly of FIG. 1.

[0021] [Figure 11] FIG. 2 illustrates a fourth exemplary configuration of the second panel of the panel assembly of FIG. 1.

[0022] [Figure 12] FIG. 13 shows a cross-sectional view of a panel assembly according to a second embodiment.

[0023] [Figure 13] FIG. 13 illustrates a cross-sectional view of a panel assembly according to a third embodiment.

[0024] [Figure 14] FIG. 13 shows a cross-sectional view of a panel assembly according to a fourth embodiment.

[0025] [Figure 15A] FIG. 13 shows a cross-sectional view of a panel assembly according to a fifth embodiment.

[0026] [Figure 15B] FIG. 13 shows a cross-sectional view of a panel assembly according to a sixth embodiment.

[0027] [Figure 16] FIG. 1 is a block diagram of a lighting system.

[0028] [Figure 17] FIG. 2 illustrates an example of a hardware configuration of a controller. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] The present disclosure is directed to a light-transmitting panel assembly, such as a window, that includes a transparent or translucent panel. The light-transmitting panel assembly includes a first laminated panel structure and a second laminated panel structure separated by a gap, which may also be referred to as an air gap or space.

[0030] In some embodiments, the first laminated panel structure and the second laminated panel structure each include an active and controllable component. As an example, the first laminated panel structure may incorporate a controllable variable light transmission device, and the second laminated panel structure may incorporate lighting. By laminating the active and controllable component to the first panel structure or the second panel structure, the active and controllable component can be separated from the exterior of the assembly by one or more other layers (e.g., a transparent glass or plastic layer) so that the active and controllable component is protected from damage.

[0031] In other embodiments, the active controllable component is located in or adjacent to the gap between the first and second panels, without including the component in the laminate structure. This configuration protects the component from damage while avoiding lamination of the component as part of the first or second panel.

[0032] 1 is a perspective view of an assembly 100 including a frame 102 and a panel assembly 104. The panel assembly 104 is supported by the frame 102. In the illustrated embodiment, the panel assembly 104 is circumscribed by the frame 102 such that a periphery of the panel assembly 104 is connected to and supported by the panel assembly 104.

[0033] 2 is a cross-sectional view of the assembly 100 taken along line 2-2 in FIG. 1. The panel assembly 104 extends between a first frame portion 202a of the frame 102 and a second frame portion 202b of the frame 102. The panel assembly 104 includes a first panel 206 and a second panel 208. The first panel 206 is disposed adjacent to a first side 201a of the assembly 100, and the second panel 208 is disposed adjacent to a second side 201b of the assembly 100. In the exemplary embodiment, an exterior space is located on the first side 201a of the assembly 100, and an interior space is located on the second side 201b of the assembly 100. The interior space may be, for example, the interior of a building or a passenger compartment of a vehicle.

[0034] As described further herein, active components are included in the first panel 206 and the second panel 208 to control the transmission of light from the first side 201a of the assembly 100 to the second side 201b of the assembly 100. In particular, the first panel 206 has variable light transmission properties and the second panel 208 has variable light emission properties. As an example, the first panel 206 may incorporate variable light transmission technology to vary the amount of ambient light (e.g., sunlight) passing from the first side 201a of the assembly 100 to the second side 201b of the assembly 100, and the second panel 208 may incorporate a lighting device to provide illumination to the space on the second side 201b of the assembly 100. The variable light transmission may also include a switchable mirror that changes state between transparent and reflective. The active components can be controlled to provide illumination of a desired light intensity and quality by mixing artificial light and natural light. As an example, by aligning a switchable mirror layer or component outward from the light emitting device, more light can be directed into the interior space. As an example, by aligning a variable tone layer or component outward from the light emitting device, less emitted light is directed into the exterior space. As an example, by aligning a variable tone layer or component outward from the light emitting device, ambient light can be blocked, allowing control of light intensity and characteristics within the interior space.

[0035] FIG. 3 is a detailed view of the area indicated in FIG. 2, including an example of connecting the first frame portion 202a of the frame 102 to the first panel 206 and the second panel 208 of the panel assembly 104. The first frame portion 202a of the frame 102 includes a connection structure that engages edges of the first panel 206 and the second panel 208. In the illustrated embodiment, a channel 310 is formed on a side of the first frame portion 202a and extends inward. A sealing structure 312 is provided within the channel 310. The sealing structure 312 supports the first panel 206 and the second panel 208 against the first frame portion 202a. The sealing structure 312 can prevent the passage of air and liquid and can also cushion the first panel 206 and the second panel 208 against the first frame portion 202a of the frame 102.

[0036] The first panel 206 and the second panel 208 are supported such that the lower surface of the first panel 206 is spaced apart from the upper surface of the second panel 208. As an example, the frame 102, including the first frame portion 202a and the sealing structure 312, can be configured to maintain a desired spacing between the first panel 206 and the second panel 208. Thus, the frame 102 acts as a support structure that supports the first panel 206 against the second panel 208, and the sealing structure 312 acts as a spacer that defines a gap 314 between the first panel 206 and the second panel 208. The gap 314 is a space where the first panel 206 and the second panel 208 are separated. The gap 314 can eliminate contact between the first panel 206 and the second panel 208 and reduce heat and sound transfer between the first panel 206 and the second panel 208. In some embodiments, the gap 314 is evacuated. In some embodiments, the gap 314 is filled with a gas, such as argon or another noble gas, or a mixture of gases, such as air. In some embodiments, the gap 314 may be filled with a liquid or gel, which may have a refractive index matching the first panel 206 and / or the second panel 208. In addition to the frame 102, a spacer may be included adjacent the frame to support the first panel 206 relative to the second panel 208 and define the gap 314.

[0037] For example, a separate channel may be formed in the frame 102 and / or the sealing structure 312 to separate the first panel 206 from the second panel 208. The spacing between the first panel 206 and the second panel 208 defines a gap 314 between the first panel 206 and the second panel 208. As an example, the width of each of the first panel 206 and the second panel 208 may be 2.0 mm to 8.0 mm, and the gap 314 may have a width of 2.0 mm to 12.0 mm. In one embodiment, the gap 314 has a nominal width of 4.0 mm that is subject to manufacturing deviations and deflections resulting from self-weight and / or external forces acting on the first panel 206 and the second panel 208. In some embodiments, the width of the gap 314 is narrower than the width of the first panel 206, and the width of the gap 314 is narrower than the width of the second panel 208. In some embodiments, the width of the gap 314 is narrower than the width of at least one of the first panel 206 or the second panel 208. In some embodiments, the width of the gap 314 is narrower than the combined width of the first panel 206 and the second panel 208.

[0038] In some embodiments, the sealing structure 312 defines an airtight seal of the gap 314 such that outside air does not enter the gap 314. In embodiments in which the gap 314 is sealed against outside air, the gap 314 may be filled with air at atmospheric pressure or a controlled atmosphere may be defined within the gap 314. In one embodiment, the gap 314 is substantially evacuated such that the pressure within the gap 314 is significantly less than atmospheric pressure. In other embodiments, a gas or gas mixture other than ambient air may be present within the gap 314, such as substantially pure nitrogen. The gas or gas mixture present within the gap 314 may be selected to enhance the noise and insulation properties resulting from the gap 314.

[0039] The assembly 100 can be configured such that there are no intervening structures between the first panel 206 and the second panel 208 at locations inboard from the frame 102. In such an embodiment, the gap 314 is continuous and uninterrupted at all locations inboard from the frame 102. In other embodiments, a transparent spacer is disposed between the first panel 206 and the second panel 208 at locations inboard from the frame 102. As one example, the spacer can be a layer of transparent material having limited longitudinal and lateral extent. As another example, the spacer can be elongated in the lateral or longitudinal directions. As another example, the spacer can include elongated lateral portions and elongated longitudinal portions that intersect with each other in a grid. In such an embodiment, the gap 314 can be provided around and between the spacers and divided into unconnected portions.

[0040] The first panel 206 is connected to a first electrical connection 316. The first electrical connection 316 is connected to a power source and / or controller and provides power and / or control signals to one or more active components incorporated into the first panel 206.

[0041] The light source 318 is supported by the first frame portion 202a adjacent the edge of the second panel 208. The light source 318 can extend along all or a portion of the perimeter of the second panel 208. As described herein, the light source 318 is an edge lighting assembly that, in combination with the structure of the second panel 208, directs light into the second panel 208 such that the light is conveyed through the second panel 208 and emitted in a controlled manner, as further described herein. The light source 318 is connected to a second electrical connection 320. The second electrical connection 320 is connected to a power source and / or controller and allows activation and deactivation of the light source 318 to control the intensity of the light source 318 and / or to control the color of the light source 318. In embodiments in which other active components are included in the second panel 208, other electrical connections may be provided to the second panel 208.

[0042] 4 illustrates a first exemplary structure of the first panel 206. The first panel 206 is a laminated panel formed from transparent or translucent layers, or is a laminated panel that can become transparent or translucent under the control of active components, as described below. In this embodiment, the first panel 206 includes, in order from top to bottom, a first layer 422, a first intermediate layer 423, a second layer 424, a second intermediate layer 425, and a third layer 426, which are bonded together in a lamination process that includes, for example, the application of heat and pressure.

[0043] The first layer 422 and the third layer 426 are transparent layers. The first layer 422 and the third layer 426 may not include active components. As an example, the first layer 422 and the third layer 426 may be formed from a silicate glass, such as soda-lime glass. As another example, the first layer 422 and the third layer 426 may be formed from a transparent or translucent polymer, or a transparent or translucent polycarbonate.

[0044] The second layer 424 incorporates variable light transmission technology. The second layer 424 is controllable by a control signal provided to the second layer 424 using the first electrical connection 316 to vary the degree of light transmission through the first panel 206. For example, the degree of light transmitted through the first panel 206 is controllable by the voltage of the control signal sent by the first electrical connection 316 to the second layer 424. The first electrical connection 316 may incorporate a transparent electrode, such as an indium tin oxide (ITO) electrode, to allow for control of the variable light transmission properties of the second layer 424.

[0045] The control signal can cause the second layer 424 to change its current light transmittance characteristics, and the second layer 424 is changed from a first light transmittance value to a state having a second light transmittance value in response to the control signal. Technologies that can be used to implement the second layer 424 include suspended particle devices, electrochromic devices, polymer dispersed liquid crystal (PLDC) devices, guest-host liquid crystal (GHLC) devices, and switchable mirror devices. Some of these technologies are implemented in the form of a film, and in such an embodiment, the second layer 424 includes a variable light transmission film on a transparent structure such as glass or polycarbonate. As an example, the second layer 424 can include a polymer dispersed liquid crystal (PDLC) film, which is a voltage-controllable film containing liquid crystals dispersed in a polymer material. The PDLC film becomes transparent when a voltage above a threshold is applied by the first electrical connection 316, and changes between transparent and opaque in response to a voltage value below the threshold. As another example, the second layer 424 may be a switchable mirror layer or may include a switchable mirror film that can change state between a transparent or semi-transparent state and a reflective state. As an example, the change of state may be induced by application or cessation of application of a voltage to at least a portion of the second layer 424. As an example, the second layer 424 may incorporate a transition metal hydride electrochromic device having a reflective hydride that changes state between transparent or semi-transparent and reflective upon application of a voltage. Other techniques may be used to implement a switchable mirror in the second layer 424.

[0046] The first layer 422 is bonded to the second layer 424 by a first intermediate layer 423, and the second layer 424 is bonded to the third layer 426 by a second intermediate layer 425. The first intermediate layer 423 and the second intermediate layer 425 may be transparent adhesive layers that bond adjacent panels together. Materials that can be used for the first intermediate layer 423 and the second intermediate layer 425 include polyvinyl butyral (PVB) and ethylene-vinyl acetate (EVA). Other materials suitable for the first intermediate layer 423 and the second intermediate layer 425 include thermoset EVA, thermoplastic polyurethane (TPU), and polyester (PE).

[0047] FIG. 5 is a diagram illustrating an example of the second layer 424 of the first exemplary structure for the first panel 206 of FIG. 4, including variable light transmission. In the illustrated embodiment, the second layer 424 includes a translucent or transparent material, 524a, such as glass or plastic. On one of the top surface (as shown) or bottom surface of the transparent material 524a, a variable light transmission film 524b and an electrode layer 524c are provided. The variable light transmission film 524b may be a PDLC film, as described above. The electrode layer 524c includes or is formed from a material capable of conducting electricity to change the variable light transmission properties of the variable light transmission film 524b. The electrode layer 524c may include a transparent electrode, such as, for example, an indium tin oxide (ITO) electrode.

[0048] 6 illustrates a second exemplary structure of the first panel 206. The first panel 206 is a laminated panel formed from transparent or translucent layers, or is a laminated panel that can become transparent or translucent under the control of active components, as described below. In this embodiment, the first panel 206 includes, in order from top to bottom, a first layer 622, a first intermediate layer 623, a second layer 624, a second intermediate layer 625, and a third layer 626, which are bonded together in a lamination process that includes, for example, the application of heat and pressure.

[0049] The first layer 622 and the second layer 624 are transparent layers of glass or plastic (e.g., polycarbonate) as described with respect to the first layer 422 and the third layer 426 of FIG. 4. The third layer 626 is an active layer having variable light transmission properties as described with respect to the second layer 424 of FIG. The third layer 626 is controllable by a control signal provided to the third layer 626 using the first electrical connection 316 to change the degree of light transmission through the first panel 206. The embodiment of FIG. 6 differs from the embodiment of FIG. 4 in that the layer containing the active components is the outer layer of the laminate structure.

[0050] First layer 622 is joined to second layer 624 by first intermediate layer 623, and second layer 624 is joined to third layer 626 by second intermediate layer 625. First intermediate layer 623 and second intermediate layer 625 are as described for first intermediate layer 423 and second intermediate layer 425.

[0051] In addition to the embodiments shown in Figures 4, 6, and 7, other configurations of transparent panels incorporating variable light transmission can be utilized for the first panel 206, including laminated and non-laminated panels.

[0052] 7 illustrates a third exemplary structure of the first panel 206. In this example, the first panel 206 is a non-laminated panel that is transparent or semi-transparent or can become transparent or semi-transparent under the control of an active component. The first panel 206 includes a first layer that is connected to and controlled by a first electrical connection 316.

[0053] The first layer 722 is an active layer having variable light transmission properties, as described with respect to the second layer 424 of Figure 4. The first layer 722 is controllable by a control signal provided to the first layer 722 using the first electrical connection 316 to vary the degree of light transmission through the first panel 206. The embodiment of Figure 7 differs from the embodiment of Figure 4 in that the layer containing the active components is not part of a laminate structure that includes multiple translucent or transparent layers of glass and / or plastic.

[0054] 8 illustrates a first exemplary structure of the second panel 208. The second panel 208 is a laminated panel formed from transparent or translucent layers. In this embodiment, the second panel 208 includes, in order from top to bottom, a first layer 822, a first intermediate layer 823, a second layer 824, a second intermediate layer 825, and a third layer 826, which are bonded together in a lamination process that includes, for example, the application of heat and pressure.

[0055] First layer 822 and third layer 826 are transparent layers of glass or plastic (e.g., polycarbonate) as described with respect to first layer 422 and third layer 426 of Figure 4. Second layer 824 is the active layer that emits light.

[0056] First layer 822 is joined to second layer 824 by first intermediate layer 823, and second layer 824 is joined to third layer 826 by second intermediate layer 825. First intermediate layer 823 and second intermediate layer 825 are as described for first intermediate layer 423 and second intermediate layer 425.

[0057] The second layer 824 is an edge-lit layer (e.g., a light guide plate) that receives light from the edge of the second panel 208. In the illustrated embodiment, the light source 318 illuminates the edge of the second layer 824 of the second panel. By way of example, the light source may be a light emitting diode (LED) or an optical fiber carrying light from a remotely located LED or laser. The other layers of the second panel 208 may be covered at their edges by a mask 819 so that the light emitted by the light source 318 is not incident on them. The light emitted by the light source 318 is conducted through the second layer 824 as a result of the different refractive index of the second layer 824 compared to adjacent layers such as the first intermediate layer 823 and the second intermediate layer 825. Features such as edges, grooves, etchings, surface patterning, or particles can be formed or provided in the second layer 824 to direct light from the second layer 824 to the third layer 826 in a desired manner.

[0058] 9 illustrates a second exemplary structure of the second panel 208. The second panel 208 is a laminated panel formed from transparent or translucent layers. In this embodiment, the second panel 208 includes, in order from top to bottom, a first layer 922, a first intermediate layer 923, a second layer 924, a second intermediate layer 925, and a third layer 926, which are bonded together in a lamination process that includes, for example, the application of heat and pressure.

[0059] First layer 922 and second layer 924 are transparent layers of glass or plastic (e.g., polycarbonate) as described with respect to first layer 822 and third layer 826 of Figure 8. Third layer 926 is the active layer that emits light.

[0060] First layer 922 is joined to second layer 924 by first intermediate layer 923, and second layer 924 is joined to third layer 926 by second intermediate layer 925. First intermediate layer 923 and second intermediate layer 925 are as described with respect to first intermediate layer 823 and second intermediate layer 825 of FIG.

[0061] The second layer 924 is an edge-lit layer that receives light from the edge of the second panel 208. In the illustrated embodiment, the light source 318, which may be a light emitting diode (LED), illuminates the edge of the second layer 924 of the second panel. The other layers of the second panel 208 may be covered at their edges by a mask 919 so that the light emitted by the light source 318 is not incident on them. The third layer 926 is similar to the second layer 824 of FIG. 8 and may be constructed and implemented in the same manner. The embodiment of FIG. 9 differs from the embodiment of FIG. 8 in that the layer containing the active components is the outer layer of the stack.

[0062] 10 illustrates a third exemplary structure of the second panel 208. In this example, the second panel 208 is a transparent or translucent non-laminated panel. The second panel 208 includes a first layer 1022 that is connected to and controlled by the first electrical connection 316.

[0063] The first layer 1022 is an active layer that emits light, as described with respect to the second layer 824 of Figure 8. The first layer 1022 is an edge-lit layer that receives light from the edge of the second panel 208, such as the light source 318, and a mask 1019 covers the light source 318 to prevent light emitted from the light source from entering the first layer 1022 or other structures other than through the edge of the first layer 1022. The embodiment of Figure 10 differs from the embodiment of Figure 8 in that the layer containing the active components is not part of a laminate structure that includes multiple translucent or transparent layers of glass and / or plastic.

[0064] 11 illustrates a fourth exemplary structure of the second panel 208. The second panel 208 is a laminated panel formed from transparent or translucent layers. In this embodiment, the second panel 208 includes, in order from top to bottom, a first layer 1122, a first intermediate layer 1123, a second layer 1124, a second intermediate layer 1125, a third layer 1126, a third intermediate layer 1127, a fourth layer 1128, a fourth intermediate layer 1129, and a fifth layer 1130, which are bonded together in a lamination process that includes, for example, the application of heat and pressure.

[0065] The first layer 1122 and the fifth layer 1130 are transparent layers of glass or plastic (e.g., polycarbonate) as described with respect to the first layer 822 and the third layer 826 of Figure 8. The second layer 1124, the third layer 1126, and the fourth layer 1128 are active layers having controllable properties that affect light transmission and / or emission.

[0066] The second layer 1124 is a switchable mirror layer that can change state between a transparent or semi-transparent state and a reflective state. As an example, the change of state can be induced by application or cessation of application of a voltage to at least a portion of the second layer 1124. As an example, the second layer 1124 can incorporate a transition metal hydride electrochromic device having a reflective hydride that changes state between transparent or semi-transparent and reflective upon application of a voltage. Other techniques can be used to implement a switchable mirror in the second layer 1124.

[0067] The third layer 1126 is a light emitting active layer. By way of example, the second layer may be a transparent light guiding layer, an edge-lit layer, a transparent or semi-transparent OLED display device, or a transparent or semi-transparent micro LED device.

[0068] 8. First layer 1122 is joined to second layer 1124 by first intermediate layer 1123, second layer 1124 is joined to third layer 1126 by second intermediate layer 1125, third layer 1126 is joined to fourth layer 1128 by third intermediate layer 1127, and fourth layer 1128 is joined to fifth layer 1130 by fourth intermediate layer 1129. First intermediate layer 1123, second intermediate layer 1125, third intermediate layer 1127, and fourth intermediate layer 1129 are as described with respect to first intermediate layer 823 and second intermediate layer 825 of FIG.

[0069] It should be understood that the details of the various embodiments herein can be combined in various ways. For example, the panel assembly 104 can be implemented using any of the examples of the first panel 206 (e.g., as in FIGS. 4-7) in combination with any of the examples of the second panel 208 (e.g., as in FIGS. 8-11). Further examples of controllable light emitting panel structures that can be utilized as the second panel 208 can be found in U.S. Patent Application No. 15 / 366,686, filed December 1, 2015, entitled "Transparent Structure with Controllable Lighting," the contents of which are incorporated herein by reference in their entirety.

[0070] 12 is a diagram illustrating a cross-sectional view of a panel assembly 1204 according to an alternative embodiment. The panel assembly 1204 is similar to the panel assembly 104, except as described herein. For example, the panel assembly 1204 can be incorporated into the assembly 100 in the manner described with respect to the panel assembly 104, including connection to the frame 102.

[0071] The panel assembly 1204 includes a first panel 1206, a second panel 1208, a spacer 1212, a gap 1214, a first active component 1232, and a second active component 1234. The first panel 1206 is disposed adjacent a first side 1201a of the panel assembly 1204, and the second panel 1208 is disposed adjacent a second side 1201b of the panel assembly 1204. In the exemplary embodiment, an exterior space is located on the first side 1201a and an interior space is located on the second side 1201b.

[0072] The first panel 1206 and the second panel 1208 may each comprise a single layer of glass or plastic, or may be a laminated structure including multiple layers that are bonded together with a lamination process involving, for example, the application of heat and pressure.

[0073] The spacer 1212 separates the first panel 1206 from the second panel 1208 to define a gap 1214 and may be disposed at the periphery of the panel assembly 1204 or disposed inward from the periphery of the panel assembly 1204. The gap 1214 may be under a vacuum or may be filled with a gas or gas mixture. The spacer 1212 may be configured to act as a sealing structure to seal the space inside the gap 1214 from the exterior of the panel assembly 1204.

[0074] The first active component 1232 and the second active component 1234 are disposed within the gap 1214. A first electrical connector 1233 for the first active component 1232 and a second electrical connector 1235 for the second active component 1234 may extend out of the panel assembly 1204 for connection to a controller or other system. The first active component 1232 and the second active component 1234 each have a controllable characteristic. The first active component 1232 and the second active component 1234 each may be, for example, a variable light transmission device or a lighting device. Examples of variable light transmission devices include suspended particle devices, electrochromic devices, polymer dispersed liquid crystal devices, and guest-host liquid crystal devices. Examples of variable lighting devices include edge-lit panels (e.g., light guide panels), LED panels, micro LED panels, and display panels (e.g., translucent OLED panels).

[0075] The first active component 1232 is attached on a lower surface (facing the gap 1214 of the first panel 1206). By way of example, the first active component 1232 may be connected to the first panel 1206 by a conventional adhesive, such as a pressure sensitive adhesive (PSA). The first active component 1232 is not part of the laminate structure of the first panel 1206. In embodiments in which the first panel 1206 is laminated, a lamination process is performed (e.g., including the application of heat and pressure to bond multiple layers using an intermediate layer) and the first active component 1232 is then attached to the first panel 1206.

[0076] The second active component 1234 is attached to a top surface of the second panel 1208 facing the gap 1214. By way of example, the second active component 1234 may be connected to the second panel 1208 by a conventional adhesive. The second active component 1234 is not part of the laminated structure of the second panel 1208. In embodiments in which the second panel 1208 is laminated, a lamination process is performed (e.g., including the application of heat and pressure to bond multiple layers using an intermediate layer) and the second active component 1234 is then attached to the first panel 1206.

[0077] Although the example shown in FIG. 12 includes both a first active component 1232 and a second active component 1234, it should be understood that the panel assembly 1204 can include only one of the first active component 1232 or the second active component 1234 and omit the other.

[0078] 13 is a diagram illustrating a cross-sectional view of a panel assembly 1304 according to an alternative embodiment. The panel assembly 1304 is similar to the panel assembly 104, except as described herein. For example, the panel assembly 1304 can be incorporated into the assembly 100 in the manner described with respect to the panel assembly 104, including connection to the frame 102.

[0079] The panel assembly 1304 includes a first panel 1306, a second panel 1308, a spacer 1312, a gap 1314, and a first active component 1332. The first panel 1306 is disposed adjacent a first side 1301a of the panel assembly 1304, and the second panel 1308 is disposed adjacent a second side 1301b of the panel assembly 1304. In the exemplary embodiment, an exterior space is located on the first side 1301a and an interior space is located on the second side 1301b.

[0080] The first panel 1306 and the second panel 1308 may each comprise a single layer of glass or plastic, or may be a laminated structure including multiple layers that are bonded together with a lamination process involving, for example, the application of heat and pressure.

[0081] The spacer 1312 separates the first panel 1306 from the second panel 1308 to define a gap 1314 and may be disposed at the periphery of the panel assembly 1304 or disposed inward from the periphery of the panel assembly 1304. The gap 1314 may be under a vacuum or may be filled with a gas or gas mixture. The spacer 1312 may be configured to act as a sealing structure to seal the space inside the gap 1314 from the exterior of the panel assembly 1304.

[0082] A first active component 1332 is disposed within the gap 1314. A first electrical connector 1333 for the first active component 1332 may extend out from the panel assembly 1304 for connection to a controller or other system. The first active component 1332 has a controllable property. The first active component 1332 may be, for example, a variable light transmission device or a lighting device. Examples of variable light transmission devices include suspended particle devices, electrochromic devices, polymer dispersed liquid crystal devices, and guest-host liquid crystal devices. Examples of variable lighting devices include edge-lit panels (e.g., light guide panels), LED panels, micro LED panels, and display panels (e.g., translucent OLED panels).

[0083] The first active component 1332 is mounted in a gap 1314 between the first panel 1306 and the second panel 1308. The first active component 1332 may be spaced apart from the first panel 1306 and the second panel 1308. In the illustrated example, the spacer 1312 includes a support structure, such as a groove 1313, that engages the first active component 1332 and suspends it in the gap 1314. Alternatively, other support structures and / or spacers may be used to suspend the first active component 1332 in the gap 1314.

[0084] Although the example shown in FIG. 13 includes a first active component 1332 and no other active components are shown, it should be understood that additional active components (e.g., a second active component) can be provided within the gap 1314 and similarly supported.

[0085] 14 is a diagram illustrating a cross-sectional view of a panel assembly 1404 according to an alternative embodiment. The panel assembly 1404 is similar to the panel assembly 1304 except as described herein. The panel assembly 1404 includes a first panel 1406, a second panel 1408, a spacer 1412, a gap 1414, a lighting device 1418, a first active component 1432, which in the illustrated embodiment is an edge-lit panel (e.g., a light guide plate), and a first electrical connector 1433 for the first active component 1432. The first panel 1406 is disposed adjacent to a first side 1401a of the panel assembly 1404, and the second panel 1408 is disposed adjacent to a second side 1401b of the panel assembly 1404. In the exemplary embodiment, the exterior space is located on the first side 1401a and the interior space is located on the second side 1401b.

[0086] The spacer 1412 separates the first panel 1406 from the second panel 1408 to define a gap 1414 and may be disposed at the periphery of the panel assembly 1404 or disposed inward from the periphery of the panel assembly 1404. The first active component 1432 extends through or between the spacers 1412 such that the first active component 1432 is suspended between the first panel 1406 and the second panel 1408. A lighting device 1418, such as an LED or remote lighting optical fiber, is located outward from the spacer 1412. The outer edge of the first active component 1432 may be located outward from the outer edge of the first panel 1406 and / or the second panel 1408 and thus outside the gap 1414.

[0087] In an alternative embodiment, the first active component 1432 may be adjacent to one of the first panel 1406 or the second panel 1408 (e.g., attached with an adhesive), with a spacer 1412 positioned opposite the first active component 1432 to define a gap 1414.

[0088] 15A is a diagram illustrating a cross-sectional view of a frame 1502 and a panel assembly 1504 according to an alternative embodiment. The panel assembly 1504 is similar to the panel assembly 1304, except as described herein. The panel assembly 1504 includes a first panel 1506, a spacer 1512 of a second panel 1508, a gap 1514, a lighting device 1518, a first active component 1532 (in the illustrated example, an edge-lit panel (e.g., a light guide plate)), a first electrical connector 1533, a second active component 1534, such as a variable light transmission device, and a second electrical connector 1535. The first panel 1506 is disposed adjacent to a first side 1501a of the panel assembly 1504, and the second panel 1508 is disposed adjacent to a second side 1501b of the panel assembly 1504. In the exemplary embodiment, the exterior space is located on the first side 1501a and the interior space is located on the second side 1501b.

[0089] The spacer 1512 separates the first panel 1506 from the second panel 1508 to define a gap 1514 and may be located on the periphery or inside one of the first panel 1506 or the second panel 1508. The first active component 1532 extends beyond the spacer 1512 and is located between the spacer 1512 and the second panel 1508 in the illustrated example. A lighting device 1518, such as an LED or remote lighting optical fiber, may be located outward from the spacer 1512 and thus outside the gap 1514. The second active component 1534 is attached (e.g., by adhesive) to the underside of the first panel 1506. The second active component 1534 is connected to a second electrical connector 1535 that extends beyond the spacer 1512 and may incorporate a bus bar attached to or formed on the underside of the first panel 1506.

[0090] The outer edge of the first panel 1506 extends outwardly from the second panel 1508 and the first active component 1532. At its outer edge, the first panel 1506 is supported by the frame 1502, such as by a first shoulder 1503a, and may engage with the first shoulder 1503a via a lateral seal 1536a and / or a vertical seal 1536b. The outer edge of the second panel 1508 may be located inwardly relative to the second panel 1508 and the first active component 1532, and may be supported by the second shoulder 1503b and the vertical seal 1536c of the frame 1502. In some embodiments, the second shoulder 1503b is omitted, and the panel assembly 1504 is suspended from the first shoulder 1503a.

[0091] The lighting device 1518 can be provided under the first and second shoulders 1503a, 1503b in an open area defined between the frame 1502 and the panel assembly 1504. An encapsulant material (not shown) can be provided around the periphery of the panel assembly 1504.

[0092] Alternatively, the first active component 1532 may be in contact with the underside of the first panel 1506 or the upper surface of the second panel 1508 (e.g., bonded by an adhesive), with a spacer 1512 positioned opposite the first active component 1532 to define the gap 1514.

[0093] FIG. 15B is a cross-sectional view of a frame 1502 and panel assembly 1504 according to an alternative embodiment in which the frame 1502 omits the second shoulder 1503b and instead uses the first shoulder 1503a to support the first panel 1506 such that the panel assembly 1504 is supported solely or primarily.

[0094] 16 is a block diagram illustrating a lighting system 1640. The lighting system 1640 may include a controller 1642, a user interface device 1644, a lighting device 1646, and a variable light transmission device 1648. The controller 1642 coordinates the operation of various components of the lighting system 1640 by electronically communicating (i.e., wired or wireless communication) with the user interface device 1644, the lighting device 1646, and the variable light transmission device 1648. The controller 1642 may receive information (e.g., signals and / or data) from the user interface device 1644 and / or from other components of the lighting system 1640. The lighting system 1640 may be used in connection with and may include components of the assembly 100.

[0095] The user interface device 1644 allows a user to change aspects of the operation of the lighting system 1640 and set desired conditions for the lighting system 1640. The user interface device 1644 allows the operating parameters of the lighting device 1646 and the variable light transmission device 1648 to be changed.

[0096] The lighting device 1646 may be an electric lighting device controllable by the controller 1642. For example, the controller may output a signal that causes the lighting device 1646 to turn on, turn off, change intensity, or change color.

[0097] The variable light transmission device 1648 utilizes variable light transmission technology to transmit light through a structure that allows for the transmission of light, such as a glass panel. The variable light transmission device 1648 can be operated by a control signal, such as a signal from the controller 1642. The control signal can cause the variable light transmission device 1648 to change its current light transmission characteristics, for example, from a first light transmission value to have a second light transmission value different from the first light transmission value, or from a light transmitting state to a light reflective (mirror) state. Technologies that can be used to implement the variable light transmission device 1648 include suspended particle devices, electrochromic devices, polymer dispersed liquid crystal devices, and guest-host liquid crystal devices.

[0098] FIG. 17 illustrates an example of a hardware configuration of a controller 1750 that may be used to implement the controller 1642 and / or other portions of the lighting system 1640. The controller 1750 may include a processor 1752, a memory 1754, a storage device 1756, one or more input devices 1758, and one or more output devices 1760. These components may be interconnected by hardware such as a bus 1762 that allows communication between the components. The processor 1752 may be a conventional device such as a central processing unit and is operable to execute computer program instructions and perform operations described by the computer program instructions. The memory 1754 may be a volatile high-speed short-term information storage device such as a random access memory module. The storage device 1756 may be a non-volatile information storage device such as a hard drive or solid state drive. The input device 1758 may include any type of human-machine interface such as a button, a switch, a keyboard, a mouse, a touch screen input device, a gesture input device, or an audio input device (e.g., a microphone). Output device(s) 1760 may include any type of device operable to provide an indication to a user regarding an operating status, such as a display screen or an audio output.

Claims

1. 1. A light-transmitting panel assembly comprising: a first panel disposed adjacent a first side of the assembly; a second panel disposed adjacent an opposing second side of the assembly, the second panel including a first transparent glass layer, a first active layer configured to change states between a translucent state and a reflective state, a second active layer configured to emit light, and a second transparent glass layer; a frame supporting the first panel and the second panel; The first panel and the second panel are separated from each other by a gap.

2. 2. The light-transmitting panel assembly of claim 1, wherein the second panel further comprises: a first interlayer disposed between the first transparent glass layer and the first active layer to bond the first transparent glass layer and the first active layer; a second interlayer disposed between the first active layer and the second active layer to bond the first active layer and the second active layer; and a third interlayer disposed between the second active layer and the second transparent glass layer to bond the second active layer and the second transparent glass layer.

3. 3. The light-transmitting panel assembly of claim 2, wherein the first panel includes a third transparent glass layer, a third active layer configured to vary an amount of light passing through the light-transmitting panel assembly, and a fourth transparent glass layer.

4. 4. The light transmissive panel assembly of claim 3, wherein the third active layer is variable between a translucent state and an opaque state.

5. 4. The light-transmitting panel assembly of claim 3, wherein the first panel further includes a fourth interlayer disposed between the third transparent glass layer and the third active layer to bond the third transparent glass layer and the third active layer, and a fifth interlayer disposed between the third active layer and the fourth transparent glass layer to bond the third active layer and the fourth transparent glass layer.

6. 4. The light-transmitting panel assembly of claim 3, wherein the first panel further includes a fourth interlayer disposed between the third transparent glass layer and the fourth transparent glass layer to bond the third transparent glass layer to the fourth transparent glass layer, and a fifth interlayer disposed between the fourth transparent glass layer and the third active layer to bond the fourth transparent glass layer to the third active layer.

7. The light transmissive panel assembly of claim 6 , wherein the third active layer is disposed adjacent the gap.

8. 10. The light-transmitting panel assembly of claim 1, wherein the second panel further comprises a third active layer configured to vary an amount of light passing through the light-transmitting panel assembly.

9. 9. The light transmissive panel assembly of claim 8, wherein the third active layer is variable between a translucent state and an opaque state.

10. 9. The light-transmitting panel assembly of claim 8, wherein the second panel further comprises: a first intermediate layer disposed between the first transparent glass layer and the first active layer to bond the first transparent glass layer and the first active layer; a second intermediate layer disposed between the first active layer and the second active layer to bond the first active layer and the second active layer; a third intermediate layer disposed between the second active layer and the third active layer to bond the second active layer and the third active layer; and a fourth intermediate layer disposed between the third active layer and the second transparent glass layer to bond the third active layer and the second transparent glass layer.

11. The light transmissive panel assembly of claim 1 , wherein the second active layer is configured to control the amount of light emitted by the second active layer.

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