# US 11,307,434 B2 · Stereoscopic display apparatus employing light emitting diodes with polarizing film/lens materials

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- Number: US 11,307,434 B2
- Document ID: US11307434B2
- Status: Granted
- Kind: B2
- Application number: 15/254,179
- Filed: 2016-09-01
- Published: 2018-03-01
- Granted: 2022-04-19
- Earliest claimed: 2016-09-01
- Assignees: 3D Live, Inc.
- Applicants: 3D Live
- Inventors: Nathaniel Huber
- Web page: https://patentgrep.com/patent/US11307434B2

## CPC

- G02B 30/25: using polarisation techniques
- H04N 13/332: Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
- H04N 13/337: using polarisation multiplexing
- H10H 20/8506: {Containers}
- H10H 20/8512: {Wavelength conversion materials}
- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H10H 29/10: Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 (active-matrix LED displays H10H29/30)
- H10W 90/00: Package configurations
- H04N 2213/001: Constructional or mechanical details
- H10H 20/84: Coatings, e.g. passivation layers or antireflective coatings
- H10H 20/8583: {not being in contact with the bodies}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A stereoscopic display system including an array of Light Emitting Diodes (LEDs) is provided. The system includes a plurality of left LEDs, each left LED comprising a left housing, a left light transmitter arrangement within the left housing, and a left polarizing element positioned with the left housing above the left light transmitter arrangement and a plurality of right LEDs, each right LED comprising a right housing, a right light transmitter arrangement within the right housing, and a right polarizing element positioned with the right housing and above the right light transmitter arrangement. At least one left housing and left polarizing element pair are each irregularly formed and fit together, and at least one right housing and right polarizing element are each irregularly formed in a manner complementary to the at least one left housing and left polarizing element.

## Claims

### Claim 1

A stereoscopic display system, comprising:
an array of (a) multiple left polarizing Light Emitting Diode housings (left LED housings), and (b) multiple right polarizing Light Emitting Diode housings (right LED housings), wherein:
each of the multiple left LED housings is individually addressable, and each is a unitary material body which includes a cavity within which is disposed a light emitting element and a left polarizing element;
wherein within each cavity of the multiple left LED housings (1) the left polarizing element is bonded to the light emitting element, and (2) a wall of the housing is disposed lateral to the polarizing element; and
each of the multiple right LED housings is individually addressable, and each is a unitary material body which includes a cavity within which is disposed a light emitting element and a right polarizing element;
wherein within each cavity of the multiple right LED housings (1) the right polarizing element is bonded to the light emitting element, and (2) a wall of the housing is disposed lateral to the polarizing element;
wherein each of the multiple left LED housings are configured to receive a first viewing channel, and each of the multiple right LED housings are configured to receive a second viewing channel, different from the first viewing channel; and
wherein the multiple left LED housings are different from the multiple right LED housings as a function of their different left and right polarizing elements.

### Claim 2 (depends on 1)

The stereoscopic display system of claim 1, wherein at least one left LED housing contains a left diffuser element.

### Claim 3 (depends on 1)

The stereoscopic display system of claim 1, wherein the plurality of left LED housings are linearly arranged in a plurality of rows.

### Claim 4 (depends on 1)

The stereoscopic display system of claim 1, wherein the plurality of left LED housings and the plurality of right LED housings are arranged in a checkerboard pattern.

### Claim 5 (depends on 1)

The stereoscopic display system of claim 1, wherein the left polarizing element of at least one of the left LED housings has an abraded surface that faces the corresponding light emitting element.

### Claim 6 (depends on 5)

The stereoscopic display system of claim 5, wherein at least one of the left polarizing housings has a visually distinguishable feature selected from the group consisting of a key mark, a slot, and a cut-out.

### Claim 7 (depends on 1)

The stereoscopic display system of claim 1, wherein each of the multiple left LED housings transmits circularly polarized light in a first directionality, and each of the multiple right LED housings transmits circularly polarized light in a second directionality different from the first directionality.

### Claim 8 (depends on 1)

The stereoscopic display system of claim 1, wherein each of the multiple left LED Housings transmits linearly polarized light in a first directionality, and each of the multiple right LED housings transmits linearly polarized light in a second directionality.

### Claim 9 (depends on 1)

The stereoscopic display system of claim 1, wherein the LEDs of each of the multiple left LED housings is configured to addressably emit multiple colors.