Switchable transparent display
First Claim
1. A display device (100) arranged to operate in two different modes:
- a transparent mode and a display mode, the display device being characterized in that it comprises a transparent plate (101) provided with a plurality of light emitting means (102), wherein each of said light emitting means is operative to illuminate a pixel area (104) of the display device, the area of each light emitting means being smaller than its corresponding pixel area; and
a first switchable diffuser (103) arranged to be transparent when operated in said transparent mode and to diffuse the light emitted from at least part of the light emitting means (102) when operated in said display mode, wherein said at least part of the light emitting means is operative to illuminate the corresponding pixel area in said display mode.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a display device (100) arranged to operate in two different modes: a transparent mode and a display mode. The idea of the present invention is that a transparent plate (101) is provided with a plurality of light emitting means (102). The light emitting means are arranged in a grid which defines the pixels of the display device. The area of each light emitting means must be small compared to the area (104) of the corresponding pixel it illuminates, since the plate provided with the light emitting means must appear transparent to the human eye. A first switchable diffuser (103) is placed in front of the plate. Thus, the display device will appear virtually transparent when the diffuser is operated in the transparent mode, whereas when operated in the display mode, the light emitted from the light emitting means will be diffused and result in uniform pixels of the display device.
-
Citations
9 Claims
-
1. A display device (100) arranged to operate in two different modes:
- a transparent mode and a display mode, the display device being characterized in that it comprises
a transparent plate (101) provided with a plurality of light emitting means (102), wherein each of said light emitting means is operative to illuminate a pixel area (104) of the display device, the area of each light emitting means being smaller than its corresponding pixel area; and
a first switchable diffuser (103) arranged to be transparent when operated in said transparent mode and to diffuse the light emitted from at least part of the light emitting means (102) when operated in said display mode, wherein said at least part of the light emitting means is operative to illuminate the corresponding pixel area in said display mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a transparent mode and a display mode, the display device being characterized in that it comprises
Specification