Display device and method of its manufacture

1. A display device comprising:

a first array of individual display elements; and

a second array of control transistors for the display elements, wherein the control transistors include a semiconductor material with a band gap sufficiently large to be transparent in the visible spectral range and wherein the semiconductor material includes boron nitride.

2. The display device of claim 1 , wherein the display elements include organic light-emitting elements.

3. The display device of claim 2 , wherein the organic light-emitting elements include a layer sequence having a cathode, an electron transport layer, an organic light-emitting layer, a hole transport layer and an anode.

4. The display device of claim 1 , wherein the display elements include liquid crystal elements.

5. The display device of claim 1 , wherein the band gap of the semiconductor material of the control transistors is larger than 3 eV.

6. The display device of claim 1 , wherein each control transistor controls several of the individual display elements.

7. The display device of claim 1 , wherein the control transistors are formed in one or more thin layers of the semiconductor material.

8. The display device of claim 7 , wherein a thin layer of the semiconductor material has a layer thickness in the range of approximately 0.5 μm to approximately 20 μm.

9. The display device of claim 1 , wherein the array of display elements contains multiple sub-arrays, the display elements of each sub-array being designed and configured for showing various colors.

10. The display device of claim 9 , wherein the array of display elements contains three sub-arrays, wherein the display elements of each sub-array is designed and configured for showing red, green and blue.

11. The display device of claim 9 , wherein the multiple sub-arrays are disposed in the same plane on a carrier substrate.

12. The display device of claim 9 , wherein the multiple sub-arrays are disposed in stacked layers in multiple planes.

13. The display device of claim 12 , wherein each of the multiple sub-arrays is disposed on its own carrier substrate.

14. The display device of claim 13 , wherein the carrier substrate is a glass plate.

15. The display device of claim 1 , wherein each control transistor controls exactly one of the individual display elements.

16. A display device, comprising:

a first array of individual display elements; and

a second array of control transistors for the display elements, wherein the control transistors are formed from a semiconductor material with a band gap sufficiently large to be transparent in the visible spectral range, wherein the semiconductor material includes boron nitride.

17. A method of manufacturing a display device, comprising:

applying a layer of a semiconductor material having a band gap sufficiently large to be transparent in the visible spectral range to a transparent carrier, wherein the semiconductor material includes boron nitride;

processing the layer on the transparent carrier to provide a first array of control transistors; and

applying an amorphous light-emitting material to the control transistors to form a second array of individual display elements.

18. The method of claim 17 , wherein the amorphous light-emitting material comprises an organic material for organic light emitting diodes.

19. The method of claim 17 , wherein the transparent carrier is a glass carrier.

20. A method for manufacturing a display device, comprising:

processing a layer of a semiconductor material having a band gap sufficiently large to be transparent in the visible spectral range to provide a first array of control transistors, wherein the semiconductor material includes boron nitride;

applying the processed layer to a transparent carrier; and

applying an amorphous light-emitting material to the control transistors to form a second array of individual display elements.

21. The method of claim 20 , wherein the amorphous light-emitting material comprises an organic material for organic light emitting diodes.

22. The method of claim 20 , wherein the transparent carrier is a glass carrier.

23. The method of claim 20 , further comprising:

producing the display elements for different colors with the corresponding control transistors, each display element being disposed on a transparent carrier; and

adjusting the transparent carriers with the display elements relative to one another.

24. The method of claim 23 , wherein the transparent carrier is a glass carrier.

25. The method of claim 23 , wherein the display elements are produced for red, green, and blue.

26. The method of claim 20 , further comprising:

producing the display elements for different colors with corresponding control transistors, using planarizing technology to directly and vertically stack the elements on a shared transparent carrier.

27. The method of claim 26 , wherein the transparent carrier is a glass carrier.

28. The method of claim 26 , wherein the display elements are produced for red, green, and blue.