ILED DISPLAYS WITH SUBSTRATE HOLES

• US 20190027534A1
• Filed: 07/18/2018
• Published: 01/24/2019
• Est. Priority Date: 07/21/2017
• Status: Active Grant

• Current Assignee: X Display Company Technology Limited (Sensinnovat BVBA)
• Original Assignee: X-Celeprint Limited
• Inventors: Rotzoll, Robert R., Cok, Ronald S.
• Granted Patent: US 10,943,946 B2
• Time in Patent Office: Days
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 27/156 two-dimensional arrays
• CPC Class Codes: H04N 5/642 Disposition of sound reproducers

Abstract

An inorganic light-emitting diode (iLED) display comprises a display substrate comprising a display area and one or more holes extending through the display substrate in the display area and a plurality of inorganic light-emitting diodes (iLEDs) disposed on, in, or over the display substrate in a regular array in the display area. At least some of the iLEDs are disposed between at least some of the holes in the display area and at least some of the holes are between at least some of the iLEDs in the display area. The display substrate can be substantially rigid and the iLED display can a flexible black sheet laminated, affixed, or adjacent to the display substrate. One or more audio loudspeakers can be disposed adjacent to the flexible sheet with the flexible sheet disposed between the display substrate and the one or more audio loudspeakers.

Claims

1. An inorganic light-emitting diode (iLED) display, comprising:

a display substrate having a display area and a shape defining one or more holes extending through the display substrate in the display area;

a plurality of inorganic light-emitting diodes (iLEDs) disposed on, in, or over the display substrate in an array in the display area; and

wherein at least some of the iLEDs are disposed between at least some of the holes in the display area and at least some of the holes are between at least some of the iLEDs in the display area.

2. The iLED display of claim 1, wherein the display comprises a plurality of tiles, each tile comprising a tile substrate comprising a display area and one or more holes extending through the tile substrate in the display area, and wherein at least some of the iLEDs are disposed between at least some of the one or more holes in the display area and at least some of the one or more holes are between at least some of the iLEDs in the display area.

3. The iLED display of claim 1, wherein the iLEDs emit light through the display substrate.

4. The iLED display of claim 1, wherein the iLEDs emit light in a direction away from the display substrate.

5. The iLED display of claim 1, wherein the one or more holes are at least partially unfilled.

6. The iLED display of claim 1, comprising one or more audio loudspeakers disposed adjacent to the display substrate and configured to emit sound through the one or more holes in the display substrate.

7. The iLED display of claim 1, comprising foam disposed in the one or more holes.

8. The iLED display of claim 7, wherein the foam is substantially black.

9. The iLED display of claim 1, wherein the display substrate is substantially rigid and comprising a flexible sheet laminated, affixed, or adjacent to the display substrate.

10. The iLED display of claim 8, wherein the flexible sheet is substantially black.

11. The iLED display of claim 10, comprising one or more audio loudspeakers disposed adjacent to the flexible sheet with the flexible sheet disposed between the display substrate and the one or more audio loudspeakers.

12. The iLED display of claim 1, wherein the plurality of iLEDs on the display substrate define a minimum contiguous convex display area of the display substrate that includes all of the iLEDs and wherein the combined area of the iLEDs is less than or equal to 25%, 10%, 5%, 2%, 1%, 0.5%, 0.1%, 0.05%, or 0.01% of the minimum contiguous convex display area including all of the iLEDs.

13. The iLED display of claim 1, wherein the plurality of iLEDs on the display substrate define a minimum contiguous convex display area of the display substrate that includes all of the iLEDs and wherein the one or more holes cover more than or equal to 25%, 12.5%, 10%, 5%, 2%, or 1% of the minimum contiguous convex display area.

14. The iLED display of claim 1, wherein the plurality of iLEDs on the display substrate define a minimum contiguous convex display area of the display substrate that includes all of the iLEDs and wherein the one or more holes form a regular array in the minimum contiguous convex display area.

15. The iLED display of claim 1, comprising two or more electrical conductors disposed on or over the display substrate and between the one or more holes, each iLED electrically connected to two or more electrical conductors.

16. The iLED display of claim 1, wherein the iLED display is a matrix-addressed display comprising row-select and column-data lines, and each iLED is controlled by a row-select line in combination with a column-data line.

17. The iLED display of claim 16, wherein the iLED display is an active-matrix display and comprises a controller disposed in, on, or over the display substrate in association with one or more iLEDs of the plurality of iLEDs and electrically connected to the one or more iLEDs to control the one or more iLEDs using signals provided by the row-select line and column-data line.

18. The iLED display of claim 1, comprising a plurality of pixels, each pixel comprising one or more iLEDs of the plurality of iLEDs and a pixel substrate on which the one or more iLEDs are disposed, each pixel substrate disposed on the display substrate within the display area.

19. The iLED display of claim 18, wherein each pixel substrate comprises a broken or separated tether.

20. The iLED display of claim 1, wherein each iLED of the plurality of iLEDs has a broken or separated tether.

21. The iLED display of claim 1, wherein each iLED of the plurality of iLEDs has at least one of a width from 2 to 50 μ

m, a length from 2 to 50 μ

m, and a thickness from 2 to 50 μ

m.

22. The iLED display of claim 1, comprising a plurality of holes between adjacent iLEDs of the plurality of iLEDs, between adjacent pixels, or within an area bounded by pixels that does not include any other pixels, in one or two dimensions parallel to a surface of the display substrate.

23. The iLED display of claim 1, wherein the array is a regular array.

24. An inorganic light-emitting diode (iLED) display, comprising:

a plurality of tile substrates disposed in a common plane or on a common surface, each tile substrate of the plurality of tile substrates comprising a display area and one or more tile substrate edges, and wherein a tile substrate edge of each tile substrate is disposed adjacent to a tile substrate edge of another tile substrate;

a plurality of inorganic light-emitting diodes (iLEDs) disposed on, in, or over each tile substrate of the plurality of tile substrates in an array in the display area; and

at least one tile substrate of the plurality of tile substrates has a shape that defines one or more holes extending through the at least one tile substrate at the adjacent tile substrate edge of the at least one tile substrate of the plurality of tile substrates.

25. The iLED display of claim 24, wherein two adjacent tile substrates of the plurality of tile substrates having adjacent display substrate edges each have shape that defines at least one hole extending through the tile substrate at the display substrate edge and wherein at least one of the at least one hole of each of the adjacent tile substrates overlap to form a larger hole.

26. The iLED display of claim 24, wherein the array is a regular array.