Overlapping array display

• US 20040256977A1
• Filed: 03/29/2004
• Published: 12/23/2004
• Est. Priority Date: 11/10/2001
• Status: Active Grant

• Current Assignee: Image Portal Limited
• Original Assignee: Image Portal Limited
• Inventors: Aston, Mark
• Granted Patent: US 7,362,046 B2
• Time in Patent Office: Days
• US Class Current: 313/498
• CPC Class Codes: G02F 1/13336 Combining plural substrates to produce large-area displays, e.g. tiled displays
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G09G 2300/026 Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: H10K 59/18 Tiled displays

Abstract

Display 100 has three adjacent display tiles 10, each having a mould plastics support 11, a glass panel 12 incorporating the OLED element and an interface pcb 17. These tiles 10 form part of a full-color advertising screen of dimensions 1.2 meter by 1.8 meter, used in indoor public places.

Claims

1. A display comprising a plurality of display tiles, each tile comprising a portion to support a display region incorporating an Organic Light Emitting Device (OLED) material with a plurality of separately addressable pixel elements, wherein the portion is at a tilt angle θ

to the main plane of the display, wherein;

2. A display according to claim 1, wherein the tilt angle θ

comprises a compound angle θ

_c having a horizontal tilt angle θ

_h and a vertical tilt angle θ

_v.

3. A display according to claim 1 wherein the first portion is at a compound tilt angle θ

_c which is less than 12°

.

4. A display according to claim 1 wherein the first portion is at a compound tilt angle θ

_c which is in the range 0.5°

to 12°

.

5. A display according to claim 1 wherein the first portion is at a compound tilt angle θ

_c which is in the range 0.5°

to 6°

.

6. A display according to claim 1 wherein the first portion is at a compound angle θ

_c in the range 3.0°

to 3.4°

.

7. A display according to claim 1 wherein the first portion is at a horizontal tilt angle θ

_h of less than 3°

.

8. A display according to claim 1 wherein the first portion is at a vertical tilt angle θ

_v of less than 3.5°

.

9. A display according to claim 1 wherein the first portion and the second portion of a tile are in substantially parallel planes.

10. A display according to claim 1 wherein the first and second portions of a tile are in a stepped relationship.

11. A display according to claim 1 wherein the first and second portions of a tile are arranged generally in a U-shape.

12. A display according to claim 1 wherein the second portion incorporates wiring and/or electrical connections.

13. A display according to claim 1 wherein the first portion comprises a tile to hold a glass panel of OLED panel.

14. A display according to claim 1 wherein the first portion comprises a moulded holder of plastic material.

15. A display according to claim 1 comprising heat seal means to ensure high integrity connection of the display to drive electronics.

16. A display according to claim 1 wherein the pixel elements have integral means to generate illumination.

17. A display according to claim 1 comprising means to effect back lighting illumination of a plurality of pixel elements.

18. A display according to claim 1 comprising a plurality of display regions, each incorporating Organic Light Emitting Device (OLED) material, each region comprising:

a. a plurality of separately addressable pixel elements; and

b. one or more of the display region(s) overlying a portion of one of more adjacent display region(s) wherein the first portion and the second portion of a tile are not in the same plane and the first portion is at a tilt angle θ

to the main plane of the display for the second portion to underlie part of another tile.

19. A display according to claim 1 wherein one or more further display regions overlie part of another display region(s).

20. A display array according to claim 1 wherein portions of display areas which lie underneath other display areas incorporate at least one of wiring or electrical connections.

21. A display according to claim 1 comprising a plurality of display regions which overlie part of a display region of at least one of a laterally or orthogonally adjacent display region.

22. A display according to claim 1 wherein the display regions form a substantially continuous display surface over the array.

23. A display according to claim 1 comprising a plurality of OLED pixel array tiles.

24. A display according to claim 1 comprising a plurality of LCD tiles using an OLED backlight.

25. A display according to claim 1 comprising a plurality of electronic paper tiles.

26. A display according to claim 1 wherein a substrate comprises a passive matrix display device.

27. A display according to claim 1 wherein the main plane of the display comprises a plane incorporating the nearest point of each OLED display first portion to an observer of the display.

28. A display comprising a plurality of display tiles, each of said display tiles further including:

a. a support member;

b. a printed circuit board positioned on said support member;

c. a panel having an OLED element operatively connected to said circuit board at a tilt angle θ

to the main plane of the display for the printed circuit board to underlie part of another tile; and

d. wherein said display tiles are positioned in an overlapping array to form a substantially two-dimensional display.