Display device, display arrangement, vehicle cabin and method for manufacturing
A display device for a vehicle cabin is disclosed including a first display layer having a plurality of first picture elements and configured to emit light towards a light emission side, a second display layer having a plurality of second picture elements and arranged adjacent to the first display layer opposite to the light emission side, a first control device connected to the first display layer and configured to control the plurality of first picture elements to display a first image on the first display layer, and a second control device connected to the second display layer and configured to control the second picture elements to display a second image on the second display layer. The second display layer is configured as an e-ink layer.
1. A display device for a vehicle cabin, comprising:
a first display layer comprising a plurality of first picture elements and configured to emit light towards a light emission side,
a second display layer comprising a plurality of second picture elements and arranged adjacent to the first display layer opposite to the light emission side,
a first control device connected to the first display layer and configured to control the plurality of first picture elements to display a first image on the first display layer,
a second control device connected to the second display layer and configured to control the second picture elements to display a second image on the second display layer,
an edge lighting apparatus integrated into the second display layer, and
wherein the second display layer is configured as an e-ink layer.
2. The display device according to claim 1 , wherein the first display layer is configured as a dynamic color display layer, and wherein the first picture elements are configured as light-emitting elements.
3. The display device according to claim 2 , wherein the first display layer is configured as a Light-Emitting Display (LED) layer, or an Organic Light-Emitting Display (OLED) layer.
4. The display device according to claim 1 , wherein the first display layer and the second display layer are configured as curved display layers.
5. The display device according to claim 1 , further comprising a first power supply configured to power the first display layer and the first control device; and
a second power supply configured to power the second display layer and the second control device.
6. The display device according to claim 1 , further comprising a battery connected to the second control device and the second display layer.
7. The display device according to claim 1 , further comprising a camera directed to at least the first display layer and configured to detect a failure mode of the first display layer and transmit a failure signal to the second control device.
8. The display device according to claim 1 , further comprising a non-volatile memory including images of certification-relevant items,
wherein the second control device is configured to read out the non-volatile memory and output the image of the certification-relevant items to the second display layer.
9. A display arrangement for a vehicle cabin, comprising:
the display device according to claim 1 , and
an external light source arranged and configured to illuminate the second display layer for increasing the contrast of the second image.
10. The display arrangement according to claim 9 , wherein the external light source comprises a UV-light source, and wherein the second display layer includes a UV-light sensitive element.
11. The display arrangement according to claim 9 , wherein the second display layer includes reflector elements (R) configured to reflect light incident on the second display layer.
12. The display arrangement according to claim 11 , wherein the reflector elements (R) include at least one of glass spheres and retro-reflectors.
13. The display arrangement according to claim 9 , wherein the light source is configured to illuminate the second display layer such that, when displayed on the second display layer and illuminated by the external light source, a contrast of the second image is at least 1:1000.
14. A vehicle comprising the display device according to claim 1 , wherein the display device is arranged on a ceiling section of a cabin wall.
15. A method for manufacturing the display device according to claim 1 , comprising:
providing (S 1 ) a substantially transparent first display layer including a plurality of first picture elements and configured to emit light towards a light emission side ( 1 a );
attaching (S 2 ) a second display layer comprising a plurality of second picture elements to the first display layer opposite of the light emitting side, wherein the second display layer is configured as an e-ink layer;
connecting (S 3 ) a first control device to the first display layer, wherein the first control device is configured to control the plurality of first picture elements to display a first image on the first display layer; and,
connecting (S 3 ) a second control device to the second display layer, wherein the second control device is configured to control the second picture elements to display a second image on the second display layer.
16. A display device for a vehicle cabin, comprising:
a first display layer comprising a plurality of first picture elements and configured to emit light towards a light emission side,
a second display layer comprising a plurality of second picture elements and arranged adjacent to the first display layer opposite to the light emission side,
a first control device connected to the first display layer and configured to control the plurality of first picture elements to display a first image on the first display layer,
a second control device connected to the second display layer and configured to control the second picture elements to display a second image on the second display layer,
an edge lighting apparatus integrated into the second display layer,
wherein the second display layer is configured as an e-ink layer, and
wherein the e-ink layer is an active layer providing internal illumination.
17. A display device for a vehicle cabin, comprising:
a first display layer comprising a plurality of first picture elements and configured to emit light towards a light emission side,
a second display layer comprising a plurality of second picture elements and arranged adjacent to the first display layer opposite to the light emission side,
a first control device connected to the first display layer and configured to control the plurality of first picture elements to display a first image on the first display layer,
a second control device connected to the second display layer and configured to control the second picture elements to display a second image on the second display layer,
wherein the second display layer is configured as an e-ink layer,
a camera directed to at least the first display layer and configured to detect a failure mode of the first display layer and transmit a failure signal to the second control device, and
wherein the camera is arranged adjacent to a backside of the second display layer opposite to the light emission side, such that the camera detects the failure mode through the second display layer.