Mother-of-pearl dial for a hidden display
View Patent ↗A display assembly including a display including a light source and a semi-transparent element for showing the display only when the display is activated, wherein the semi-transparent element includes a mother-of-pearl dial under which is disposed a semi-reflective element.
1. A display assembly comprising:
a display module including a light source to display at least one piece of information; and
a dial module to show the display information only when the display is activated, wherein
the dial module includes a dial made of a translucent or semi-transparent material underneath which is disposed a semi-reflective element to reflect part of light and to transmit another proportion of light while reducing deflection of light rays by diffusion, the semi-reflective element completely covers the light source, and the display module being disposed underneath the semi-reflective element.
2. The display assembly according to claim 1 , wherein the semi-reflective element includes a metallic layer directly deposited on the dial.
3. The display assembly according to claim 1 , wherein the semi-reflective element includes a metallic layer deposited on a flexible film.
4. The display assembly according to claim 1 , wherein the semi-reflective element includes a dielectric mirror in a form of a film.
5. The display assembly according to claim 1 , wherein the semi-reflective element includes a dielectric mirror made directly on the dial, with a film being bonded thereon to stiffen the dial.
6. The display assembly according to claim 4 , wherein the dielectric mirror includes a plurality of stacked layers of dielectric materials having different refractive indices and thicknesses.
7. The display assembly according to claim 5 , wherein the dielectric mirror includes a plurality of stacked layers of dielectric materials having different refractive indices and thicknesses.
8. The display assembly according to claim 4 , wherein the dielectric mirror includes a plurality of layers of birefringent dielectric materials.
9. The display assembly according to claim 5 , wherein the dielectric mirror includes a plurality of layers of birefringent dielectric materials.
10. The display assembly according to claim 4 , wherein the film is a flexible film.
11. The display assembly according to claim 5 , wherein the film is a flexible film.
12. The display assembly according to claim 4 , wherein the film is a rigid film.
13. The display assembly according to claim 5 , wherein the film is a rigid film.
14. The display assembly according to claim 1 , wherein thickness of the dial module is between 0.3 and 0.5 mm.
15. The display assembly according to claim 1 , wherein thickness of the dial is between 0.01 and 0.4 mm.
16. The display assembly according to claim 1 , further comprising an opaque film located between the display module and the dial module.
17. The display assembly according to claim 1 , wherein the dial is made of a material of at least one of: mother-of-pearl, amber, meteorites, horn, bone, leather, hide, coral, cartilage, semi-transparent minerals, semi-transparent or tinted glasses, ceramics or wood.
18. A timepiece comprising a display assembly according to claim 1 .
19. A display assembly comprising:
a display module including a light source to display at least one piece of information; and
a dial module to show the display information only when the display is activated, wherein
the dial module includes a dial made of a translucent or semi-transparent material underneath which is disposed a semi-reflective element to reflect part of light and to transmit another proportion of light while reducing deflection of light rays by diffusion, the display module being disposed underneath the semi-reflective element, and the semi-reflective element includes a dielectric mirror in a form of a film.
20. A display assembly comprising:
a display module including a light source to display at least one piece of information; and
a dial module to show the display information only when the display is activated, wherein
the dial module includes a dial made of a translucent or semi-transparent material underneath which is disposed a semi-reflective element to reflect part of light and to transmit another proportion of light while reducing deflection of light rays by diffusion, the display module being disposed underneath the semi-reflective element, and the semi-reflective element includes a dielectric mirror made directly on the dial, with a film being bonded thereon to stiffen the dial.