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US 2016/0183346A1 Hsing Et Al US 2016O183346A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2016/0183346A1 Hsing et al. (43) Pub. Date: Jun. 23, 2016 (54) BACKLIT LUMINOUS STRUCTURE (52) U.S. Cl. CPC ................ H05B33/145 (2013.01); F2IV 9/16 (71) Applicant: Disney Enterprises, Inc., Burbank, CA (2013.01); H05B33/10 (2013.01) (US) (72) Inventors: Alexander W. Hsing, Glendale, CA (57) ABSTRACT (US); Lanny Smoot, Thousand Oaks, The present disclosure relates generally to a backlit luminous CA (US) structure. The backlit luminous structure includes a substrate, Such as a two dimensional or three dimensional object or (21) Appl. No.: 14/573,930 Surface, an ultraviolet emitting electroluminescent coating or (22) Filed: Dec. 17, 2014 other type of UV emitting coating that emits ultraviolet wave lengths when activated, and an ultraviolet activated luminous Publication Classification coating applied on the ultraviolet emitting electroluminescent coating. When activated, the ultraviolet emitting electrolumi (51) Int. C. nescent coating generates ultraviolet wavelengths that aviate H05B33/14 (2006.01) the luminous coating. The backlit luminous structure may be H05B33/10 (2006.01) used in a variety of applications, such as, but not limited to, F2IV 9/16 (2006.01) theme parks, amusement attractions, or the like. 200A 136 LUMNOUS PAINT 134 132 130 128 112A (9/Z 126 - - - - - - - - - - - - - y -- - - - - - - - - - - - - - - - - - - 124 116 goO 9 o- 9 Oa o O so o O oo o O Co. o.O oo o oo 142 122 12O SUBSTRATE Patent Application Publication Jun. 23, 2016 Sheet 1 of 12 US 2016/0183346 A1 N - - / 102B Y - 1 / 104 - 1 \ / n Ya Y FIG. 1A N Y. (PRIOR ART) is 4 N 102C / N 1 N Y / N N - - - - - - - - - NN 1 O2A N 102B Y- 104 - 1 \ FIG. 1B a. is (PRIOR ART) N 102C - Patent Application Publication Jun. 23, 2016 Sheet 2 of 12 US 2016/0183346 A1 ZZ| Z/© 9|| Patent Application Publication Jun. 23, 2016 Sheet 3 of 12 US 2016/0183346 A1 2OOB 136 LUMNOUS PAINT CLEAR COAT 134 FILTER 144 132 TOP CONDUCTOR 13O 112B PHOSPHORS 128 DELECTRIC 126 BOTTOM CONDUCTOR 124 BASE INSULATOR 122 SUBSTRATE 12O FIG. 2B 2OOC FIG. 2C Patent Application Publication Jun. 23, 2016 Sheet 4 of 12 US 2016/0183346 A1 13O PHOSPHOR 1 118A PHOSPHOR 2 118B 118C PHOSPHOR 3 118 PHOSPHOR 4 118D PHOSPHOR 5 118E PHOSPHORN 118F FIG. 3A Patent Application Publication Jun. 23, 2016 Sheet 5 of 12 US 2016/0183346 A1 150 PHOSPHOR 2 118B PHOSPHOR 1 118A PHOSPHOR 3 118C PHOSPHOR 4 118D FIG. 3B Patent Application Publication Jun. 23, 2016 Sheet 6 of 12 US 2016/0183346 A1 PHOSPHOR 2 118B PHOSPHOR 4 118D 126 FIG. 4 Patent Application Publication Jun. 23, 2016 Sheet 7 of 12 US 2016/0183346 A1 5OO DISPOSING AN INSULATING BASELAYER 160 OVER 2D OR 3D SURFACE FORMING A BOTTOM CONDUCTING 164 LAYER OVER THE INSULATING BASE PAGE T SEGMENTING THE BOTTOM 168 CONDUCTING LAYER DISPOSING A DELECTRIC LAYER OVER 172 THE BOTTOM CONDUCTING LAYER APPLYING ONE ORMORE LAYERS 176 CONTAINING PHOSPHORS FORMING TOP CONDUCTING LAYER OVER THE LAYERS CONTAINING THE 18O PHOSPHORS APPLYING TOP COAT LAYER OVER THE 184 TOP CONDUCTING LAYER FIG. 5 APPLY LUMNOUS COATING 186 Patent Application Publication Jun. 23, 2016 Sheet 8 of 12 US 2016/0183346 A1 6OO PROVIDING UVEL COATING SHEET 190 THERMOFORMING THE UVEL COATING 194 SHEET OVER 2D OR 3D SURFACE APPLYING BACKLIGHT PAINT OVER THE 198 UVEL COATING FIG. 6 Patent Application Publication Jun. 23, 2016 Sheet 9 of 12 US 2016/0183346 A1 Patent Application Publication Jun. 23, 2016 Sheet 10 of 12 US 2016/0183346 A1 23O CONTROLLER POWER POWER POWER SOURCE SOURCE SOURCE 232A 232B 232C SECTOR 1 SECTOR 2 SECTOR 3 234A 234B 234C FIG. 8 Patent Application Publication Jun. 23, 2016 Sheet 11 of 12 US 2016/0183346 A1 W. FIG. 9 Patent Application Publication Jun. 23, 2016 Sheet 12 of 12 US 2016/0183346 A1 1 OOO 3O8 312 FIG. 10 US 2016/0183346 A1 Jun. 23, 2016 BACKLIT LUMNOUS STRUCTURE nose of a face of character. This is because the light emitted from an external source is likely to bleed onto other areas of FIELD the surface. 0007 Additionally, UV light or radiation from external 0001. The present disclosure relates generally to luminous UV sources may also inadvertently cause other items to paint, and more specifically to ultraviolet activated luminous change inappearance or glow. This side effect may adversely coatings. impact the aesthetics of an application, such as dark theme park rides that include blacklight painted surfaces. For BACKGROUND example, white shirts may glow in the dark if exposed to UV light in a dark setting as typically white shirts may be laun 0002 Luminous paints, such as fluorescent paints, black dered with a bleaching agent, such as detergent containing light paints, and phosphorescent paints, include a wide range bleach. This bleaching agent may glow when exposed to UV of pigments that glow or otherwise emit visible light when light, because many bleaching agent contain chemicals that exposed to an energy source Such as ultraViolet (UV) light emit visible light when exposed to UV light. This inadvertent radiation, e.g., wavelengths between 400 nm to 10 nm. Black glowing in certain environments, such as theme parks, may light paints can be applied to a variety of surfaces so that those diminish an intended artistic effect, as the artist may wish that surfaces will glow in different colors when illuminated by UV only the object of interest glows in the dark environment and light. The Surface glows because the blacklight paint converts that other objects. UV wavelengths into visible wavelengths. For example, 0008 UV light from external UV sources may also scat blacklight paints may be painted on Surfaces of dark amuse tered onto people's faces, which may enhance the visibility of ment rides in theme parks or entertainment parks to create a Some undesirable characteristics. For example, dirt on a per glow-in-the-dark effect. son's teeth may be visible in a dark setting when the UV light 0003 Blacklight paints generally require the use of exter is scattered onto the person’s face, as the person’s teeth nal UV sources, such as UV light emitting diode (LED) absorb the UV light and reemit light having a longer wave strobes, UV lamps, or the like to provide the UV radiation. In length, i.e., visible light, causing the teeth to glow. certain instances, such as when used in entertainment attrac 0009. It is with these shortcomings in mind that the present tions, these external UV sources may often be required to be disclosure has been developed. hidden from being viewed by guests to maintain the aesthetics and experience of the attraction. SUMMARY 0004 Additionally, for complex or irregular surfaces mul 0010. The present disclosure relates generally to a backlit tiple UV lamps may be needed to light the surfaces from luminous structure. The backlit luminous structure includes a various angles and locations to ensure uniform exposure to UV activated paint or ink and a UV emitting layer positioned the UV radiation and thus a uniform luminous appearance. beneath the UV activated paint or ink layer. Because the UV FIG. 1A is a simplified diagram illustrating a flat surface radiation that activates the UV activated paint is emitted from glowing in the dark with external UV sources. As shown, the same structure as the paint, the UV radiation can be three external UV sources 102A-C are placed at different applied uniformly to the paint, even if the structure has a angles and locations from the surface 104, which is covered complex geometry. Alternatively the UV light concentration with blacklight paint. When the UV sources 102A-C are can be varied to different regions of the paint to selectively turned on, the 2D surface 104 glows due to the reaction with activate certain painted regions or to vary the intensity of the UV sources. FIG. 1B is a simplified diagram illustrating a certain painted regions as compared to others. three dimensional surface glowing due to the UV emitted 0011. In one embodiment the backlit luminous structure from the external UV sources. As shown, the three dimen includes a Substrate, an ultraviolet emitting electrolumines sional (3D) surface 106 glows when three external UV cent coating deposited over the Substrate, and a UV activated sources 102A-C emit UV radiation that impacts the 3D sur luminous coating, such as fluorescent paint, blacklight acti face 106. The multiple UV sources are required for the 3D vated paint, or the like, applied to the UV emitting coating. Surface to ensure that every curve and shape of the structure 0012. In some embodiments, the UV emitting coating may receives the UV radiation and emits a uniform level of light. be divided into a plurality of regions such that each of the Because the UV wavelengths emitted from the UV lights are regions may be selectively activated separate from one typically invisible to humans, the illuminated Surfaces appear another. In this embodiment, the UV light may selectively to “glow in the dark” when visible light sources are turned off activate certain regions of the luminous coating. or not present. 0013. In another embodiment, an illumination system for 0005. Even with multiple UV sources, light uniformity an object is disclosed. The illumination system includes an may still be a problem for illuminating very curved or con UV emitting structure including a plurality of selectively Voluted Surfaces because the complex geometry or shapes of activatable UV regions, a blacklight paint coat applied on top the objects may prevent UV light from being received in of the UV emitting structure, a power source electrically certain areas.
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