DISPLAY DEVICE FOR DISPLAYING STEREOSCOPIC IMAGES

• US 20130229448A1
• Filed: 01/22/2013
• Published: 09/05/2013
• Est. Priority Date: 07/19/2010
• Status: Abandoned Application

• Current Assignee: INFITEC GmbH
• Original Assignee: INFITEC GmbH
• Inventors: SIMON, Arnold, JORKE, Helmut
• Application Number:
  US13/746,783
• Publication Number:
  US 20130229448A1
• Time in Patent Office: Days
• US Class Current: 345/697
• CPC Class Codes: G02B 30/23 using wavelength separation, e.g. using anaglyph techniques
• CPC Class Codes: G09G 5/14 Display of multiple viewports
• CPC Class Codes: H04N 13/334 using spectral multiplexing

Abstract

A display device for displaying stereoscopic images is provided, wherein partial stereoscopic images are generated in spectral ranges at least partially different from each other, and wherein narrow-band emitting emission elements are present for generating images, and wherein different emission elements are present for generating spectrally narrow-band optical radiation in different spectral ranges, of which at least one comprises a light-converting material excited by an excitation element for emitting optical radiation.

Claims

1. A display device for displaying stereoscopic images, the device comprising:

narrowband emitting emission elements adapted for image generation; and

a plurality of different emission elements, at least one of which contains a light-converting material excited by an excitation element for emitting optical radiation, the plurality of different emission elements being configured to generate spectrally narrowband optical radiation in different spectral ranges,

wherein partial stereoscopic images are generated in spectral ranges at least partially different from one another.

2. The display device according to claim 1, wherein the emission elements are formed at least partially as pixels or subpixels of a display.

3. The display device according to claim 2, wherein the display device has at least one substrate with a plurality of LEDs arranged on the substrate and at least one part of the emission elements assigned to the LEDs, wherein narrowband optical radiation in the visible blue, visible green, and visible red spectral ranges is emitted by the pixels or subpixels, and wherein there are two emission bands for each of the mentioned spectral ranges.

4. The display device according to claim 3, wherein the pixels or subpixels are arranged on different substrates, and wherein the pixel images arising on the substrates are superimposed via an optical superposition unit.

5. The display device according to claim 1, further comprising a projection unit configured to generate an image, wherein at least one emission element is arranged on a color wheel.

6. The display device according to claim 1, wherein the display device is an LCD display, and wherein at least one part of the emission elements is formed as part of a lighting unit for backlighting the LCD display.

7. The display device according to claim 6, wherein the emission element is arranged on an entry or exit surface of a light guide.

8. The display device according to claim 1, wherein at least two different emission elements are assigned substantially similar excitation elements for optical excitation of the emission elements.

9. The display device according to claim 1, wherein the excitation elements emit optical radiation to excite the optical emission elements.

10. The display device according to claim 9, wherein at least one excitation element emits optical radiation of a shorter wavelength than the emission element.

11. The display device according to claim 1, wherein at least one emission element contains a nanomaterial.

12. The display device according to claim 11, wherein the nanomaterial contains quantum dot nanoparticles.

13. The display device according to claim 1, wherein the excitation element and the emission element are in direct contact.

14. The display device according to claim 1, wherein the excitation element and the emission element are arranged at a distance from one another.

15. The display device according to claim 1, wherein the emission element is arranged on a dichroic mirror.

16. The display device according to claim 15, wherein the mirror is configured to transmit the light emitted by the excitation elements and reflects the light emitted by the emission elements.

17. The display device according to claim 15, wherein the mirror reflects the light emitted by the excitation elements and transmits the light emitted by the emission elements.