Virtual stereoscopic light emitting diode display panel

• US 6,864,864 B2
• Filed: 01/07/2002
• Issued: 03/08/2005
• Est. Priority Date: 01/07/2002
• Status: Active Grant

• Current Assignee: Harvatek Corporation
• Original Assignee: Harvatek Corporation
• Inventors: Lin, John
• Primary Examiner(s): Mengistu, Amare
• Application Number:
  US10/038,085
• Publication Number:
  US 20030137476A1
• Time in Patent Office: 1,156 Days
• Field of Search: 345/39, 345/40, 345/55, 345/63, 345/82, 348/51, 359/462, 359/599
• US Class Current: 345/40
• CPC Class Codes: G09F 9/33 being semiconductor devices, e.g. diodes

Abstract

The LEDs of a display panel are arranged in a matrix array and oriented at an angle with the directions of columns or rows. Such an orientation causes the diffused light incident on neighboring LEDs of activated LEDs to create a shaded area with the same aspect ratio of the activated pattern and to yield a virtual stereoscope illusion.

Claims

1. A light emitting diode display panel comprising:

an array of LEDs arranged as a matrix of columns in a vertical direction and rows in a horizontal direction;

each LED having a rectangular shape, oriented at an angle to the horizontal direction and partially coated at one edge; and

some of said LEDs activated to generated a master light pattern, and having diffused light to illuminate neighbor LEDs and to effect a macroscopic view with virtual stereoscopic effect of the master light pattern; and

wherein said LEDs are coated on one edge with a light absorbing material.

2. The LED display panel as described in claim 1, wherein each LED is oriented to effect the virtual stereoscopic effect without changing the overall aspect ratio of the master light pattern.

3. The LED display panel as described in claim 1, wherein the LEDs are oriented such that a first group of said neighbor LEDs illuminated by only one of said LEDs activated to display a weaker light, and a second group of said neighbor LEDs illuminated by two of said LEDs activated to irradiate a stronger light.

4. A light emitting diode display panel comprising:

an array of LEDs arranged as a matrix of columns in a vertical direction and rows in a horizontal direction;

each LED having a rectangular shape, oriented at an angle to the horizontal direction and partially coated at one edge; and

some of said LEDs activated to generated a master light pattern, and having diffused light to illuminate neighbor LEDs and to effect a macroscopic view with virtual stereoscopic effect of the master light pattern; and

wherein said LEDs are coated on one edge with a light reflecting material.

5. The LED display panel as described in claim 4, wherein each LED is oriented to effect the virtual stereoscopic effect without changing the overall aspect ratio of the master light pattern.

6. The LED display panel as described in claim 4, wherein the LEDs are oriented such that a first group of said neighbor LEDs illuminated by only one of said LEDs activated to display a weaker light, and a second group of said neighbor LEDs illuminated by two of said LEDs motivated to irradiate a stronger light.

7. A light emitting diode display panel comprising:

an array of LEDs arranged as a matrix of columns in a vertical direction and rows in a horizontal direction;

each LED having a rectangular shape, oriented at an angle to the horizontal direction and partially coated at one edge; and

some of said LEDs activated to generated a master light pattern, and having diffused light to illuminate neighbor LEDs and to effect a macroscopic view with virtual stereoscopic effect of the master light pattern;

wherein said LEDs are partially coated on one edge with a light absorbing material.

8. A light emitting diode display panel comprising:

an array of LEDs arranged as a matrix of columns in a vertical direction and rows in a horizontal direction;

each LED having a rectangular shape, oriented at an angle to the horizontal direction and partially coated at one edge; and

some of said LEDs activated to generated a master light pattern, and having diffused light to illuminate neighbor LEDs and to effect a macroscopic view with virtual stereoscopic effect of the master light pattern;

wherein said LEDs are partially coated on one edge with a light reflecting material.