IP Library › Granted Patent US 12,253,715
Granted Patent B2
US 12,253,715 · App. 17/002,295 · Granted Mar 18, 2025

MEMS-driven optical package with micro-LED array

Inventors: Matthew E. Ward (Philadelphia, PA); Jeremy Hochman (Walnut, CA)
G02B6/12007B81B3/0083H01L27/156B81B2203/0136G02B2006/12102G02B2006/12109G02B2006/12164
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Quick Facts
Patent No.
US 12,253,715
App. No.
17/002,295
Granted
Mar 18, 2025
Kind
B2
Abstract

An optical light package includes an optical output lens, an optical filter located thereunder and between the output lens and LEDS, a tray of LEDs arrayed on a stage mounted on a linear comb based MEMS device that is distributed in such a way that the stage is movable, and a driver that controls movement of the stage.

Claims (28)

1. An optical multiplexing package having an expanded color gamut comprising:

an optical lens;

an array of light emitting elements (LEEs), arrayed on a movable stage that is mounted on a MEMS array, wherein the array of LEEs form pixels, wherein the LEEs project light through the optical lens, wherein the pixels include red, green, blue, and at least one other color pixel, and wherein the array of LEEs is visible to different viewers located at different locations in space;

a driver that controls movement of the stage such that the light passing through the lens changes with movement of the stage;

a sensor that provides information to the driver about location and timing of the movable stage; and

wherein the movable stage is constantly in motion during operation of the multiplexing package.

2. The optical multiplexing package of claim 1 , wherein the at least one additional color is selected from the group consisting of cyan, amber, deep green, dark blue or royal blue, or a cool 10,000 kelvin white.

3. The optical multiplexing package of claim 1 , wherein the movable stage is a linear comb-based device.

4. The optical multiplexing package of claim 1 , wherein the movable stage moves linearly along two axes.

5. The optical multiplexing package of claim 1 , wherein the movable stage moves in more than one axis.

6. The optical multiplexing system of claim 1 , wherein an angular resolution of the package creates a data transmission system where a ray of light may only be sensed from a single location in a space and that by illuminating one pixel that is only visible by one sensor, a closed communication channel is created, wherein the communication channel is used for calibration of the package.

7. The optical multiplexing package of claim 1 , wherein the optical multiplexing package has an expanded color gamut comprising OLEDs.

8. A substrate comprising multiple optical multiplexing packages controlled by a driver, wherein the optical multiplexing packages comprise:

an optical lens;

an array of light emitting elements (LEEs), arrayed on a movable stage that is mounted on a MEMS array, wherein the array of LEEs form pixels, wherein the LEDs project light through the optical lens, wherein the pixels include red, green, blue, and at least one other color pixel, and wherein the array of LEEs is visible to different viewers located at different locations in space;

wherein the driver controls movement of the stage such that the light passing through the lens changes with movement of the stage, wherein the driver uses input from at least one sensor that provides information to the driver about location and timing of the movable stage and/or substrate; and

wherein the movable stage is constantly in motion during operation of the multiplexing package.

9. The substrate of claim 8 , wherein the at least one additional color is selected from the group consisting of cyan, amber, deep green, dark blue or royal blue, or a cool 10,000 kelvin white.

10. The substrate of claim 8 , wherein the movable stage is a linear comb-based device.

11. The substrate of claim 8 , wherein the movable stage moves linearly along two axes.

12. The substrate of claim 8 , wherein the movable stage moves in more than one axis.

13. The substrate of claim 8 , wherein an angular resolution of the package creates a data transmission system where a ray of light may only be sensed from a single location in a space and that by illuminating one pixel that is only visible by one sensor, a closed communication channel is created, wherein the communication channel is used for calibration of the package.

14. An array of optical multiplexing packages, wherein each of the optical multiplexing packages has an expanded color gamut comprising:

an optical lens;

an array of light emitting elements (LEEs), arrayed on a movable stage that is mounted on a MEMS array, wherein the array of LEEs form pixels, wherein the LEEs project light through the optical lens, wherein the pixels include red, green, blue, and at least one other color pixel, and wherein the array of LEEs is visible to different viewers located at different locations in space;

a driver that controls movement of the stage such that the light passing through the lens changes with movement of the stage;

a sensor that provides information to the driver about location and timing of the movable stage; and

wherein the movable stage is constantly in motion during operation of the multiplexing package.

Continuity (6)
Continuation In Part 16451099 · Jun 25, 2019
Continuation In Part PCTUS2019037598 · Jun 18, 2019
Provisional Application 62938980 · Nov 22, 2019
Provisional Application 62821256 · Mar 20, 2019
Related Publication 20210033790A1 · Feb 4, 2021
Related Publication 20240061171A9 · Feb 22, 2024
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