Light diffusion of visible edge lines in a multi-dimensional modular display

• US 8,975,808 B2
• Filed: 11/18/2013
• Issued: 03/10/2015
• Est. Priority Date: 01/26/2010
• Status: Active Grant

• Current Assignee: Lightizer Co., Ltd.
• Original Assignee: Lightizer Korea Inc.
• Inventors: Cho, Byoung gu
• Primary Examiner(s): RALEIGH, DONALD L
• Application Number:
  US14/082,684
• Publication Number:
  US 20140139097A1
• Time in Patent Office: 477 Days
• Field of Search: 313498-512
• US Class Current: 313/116
• CPC Class Codes: G09F 13/04 Signs, boards or panels, illuminated from behind the insignia
• CPC Class Codes: H04N 13/30 Image reproducers optical systems for producing stereoscopic or other three-dimensional effects G02B30/00

Abstract

Embodiments of the present invention provide light diffusion into edge lines of a modular display, and thus provide a modular display that is capable of displaying a single, continuous image without visible edge lines between individual display modules. One display module includes a multitude of pixels that contain red, green, blue, and white light sources. The replacement of an edge line blocking dam with the light diffusion edge line of the individual display module can provide a single, continuous image to be displayed thereon without visible, image-quality-reducing edge lines. With various heights of the buffer layer, the light can concentrate on the edge line in modular display. The individual display modules can be light emitting diode (LED), organic LED (OLED), UV LED, RGB LED, Phosphor-based LED, Quantum dot LED, or displays based upon a combination thereof. Furthermore, the variable height buffer layer allows for a modular display image in 2-dimensional or 3-dimensional formats.

Claims

1. A modular display, comprising:

a plurality of display modules to create said modular display;

a plurality of light emitting pixels within each of the plurality of display modules;

a buffer layer positioned under said plurality of light emitting pixels, the buffer layer configured to cause a height of at least one light emitting pixel of the plurality of light emitting pixels to vary from a height of another light emitting pixel of the plurality of light emitting pixels in such a way that light directionality of light emitted from the plurality of light emitting pixels renders substantially invisible at least one of;

interfaces between light-emitting pixels of the plurality of light-emitting pixels, and interfaces between display modules of the plurality of display modules; and

a multidimensional image output, said multidimensional image output being from said modular display.

2. The modular display of claim 1, further comprising a blocking dam that is fabricated by a paraffin dispensing or silicon dispensing step, located on an outer edge of said plurality of light emitting pixels or located on an outer edge of said plurality of display modules.

3. The modular display of claim 1, wherein said plurality of light emitting pixels, of said plurality of display modules, contain red, green, blue, and white light sources.

4. The modular display of claim 1, wherein said multidimensional image output is 2-dimensional.

5. The modular display of claim 1, wherein said multidimensional image output is 3-dimensional.

6. The modular display of claim 1, wherein said outer edge of said plurality of light emitting pixels without a blocking dam can provide a single, continuous image to be displayed without being obstructed with edge lines.

7. The modular display of claim 1, wherein said outer edge of said plurality of display modules without a blocking dam can provide a single, continuous image to be displayed without being obstructed with edge lines.

8. The modular display of claim 1, wherein said modular display can include a plurality of display modules that are based upon light emitting diode (LED), organic LED (OLED), UV LED, RGB LED, Phosphor-based LED, Quantum dot LED, or a combination thereof.

9. The modular display of claim 1, wherein said variable height buffer layer can be fabricated by semiconductor processing.

10. The modular display of claim 1, wherein said variable height buffer layer is varied between said plurality of light emitting pixels components such that the red, green, blue, or white light source components are at varied heights.

11. A modular display, comprising:

a plurality of display modules combined to create said modular display;

a plurality of light emitting pixels within each of the plurality of display modules;

an intra-pixel barrier that includes a color diffusion edge along the plurality of light emitting pixel'"'"'s interfaces;

an intra-display module barrier that includes said color diffusion edge along the plurality of light emitting pixel'"'"'s interfaces of the perimeter of said plurality of display modules;

a buffer layer positioned under said plurality of light emitting pixels, the buffer layer configured to cause a height of at least one light emitting pixel of the plurality of light emitting pixels to vary from a height of another light emitting pixel of the plurality of light emitting pixels in such a way that light directionality of light emitted from the plurality of light emitting pixels renders substantially invisible at least one of;

interfaces between light-emitting pixels of the plurality of light-emitting pixels, and interfaces between display modules of the plurality of display modules; and

a multidimensional image output, said multidimensional image output being from said modular display.

12. The modular display of claim 11, further comprising said color diffusion edge that is fabricated by a paraffin dispensing or silicon dispensing step, located on an outer edge of said plurality of light emitting pixels or located on an outer edge of said plurality of display modules.

13. The modular display of claim 11, wherein said plurality of light emitting pixels, of said plurality of display modules, contain red, green, blue, and white light sources.

14. The modular display of claim 11, wherein said multidimensional image output is 2-dimensional.

15. The modular display of claim 11, wherein said multidimensional image output is 3-dimensional.

16. The modular display of claim 11, wherein said outer edge of said plurality of light emitting pixels without a blocking dam can provide a single, continuous image to be displayed without being obstructed with edge lines.

17. The modular display of claim 11, wherein said outer edge of said plurality of display modules without a blocking dam can provide a single, continuous image to be displayed without being obstructed with edge lines.

18. The modular display of claim 11, wherein said modular display can include a plurality of display modules that are based upon light emitting diode (LED), organic LED (OLED), UV LED, RGB LED, Phosphor-based LED, Quantum dot LED, or a combination thereof.

19. The modular display of claim 11, wherein said t buffer layer can be fabricated by semiconductor processing.

20. A modular display, comprising:

a plurality of display modules combined to create said modular display;

a plurality of light emitting pixels within each of the plurality of display modules;

a buffer layer positioned under said plurality of light emitting pixels, the buffer layer configured to cause a height of at least one light emitting pixel of the plurality of light emitting pixels to vary from a height of another light emitting pixel of the plurality of light emitting pixels in such a way that light directionality of light emitted from the plurality of light emitting pixels renders substantially invisible at least one of;

interfaces between light-emitting pixels of the plurality of light-emitting pixels, and interfaces between display modules of the plurality of display modules; and

a multidimensional image output, said multidimensional image output being from said modular display.