# US 11,898,728 B2 · Flexible light emitting diode (LED) sheet systems and methods

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- Number: US 11,898,728 B2
- Document ID: US11898728B2
- Status: Granted
- Kind: B2
- Application number: 17/989,469
- Filed: 2022-11-17
- Published: 2023-05-18
- Granted: 2024-02-13
- Earliest claimed: 2021-11-17
- Assignees: Diodify, LLC
- Applicants: Diodify, LLC
- Inventors: James Boros; Kelly Blackwood Carter
- Web page: https://patentgrep.com/patent/US11898728B2

## CPC

- F21V 19/0015: {Fastening arrangements intended to retain light sources}
- F21V 23/005: {the substrate is supporting also the light source}
- H05K 1/028: {Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence)}
- H05K 3/0052: {Depaneling, i.e. dividing a panel into circuit boards; Working of the edges of circuit boards}
- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H10W 90/00: Package configurations
- F21S 4/24: of ribbon or tape form, e.g. LED tapes
- F21Y 2103/10: comprising a linear array of point-like light-generating elements
- F21Y 2105/10: comprising a two-dimensional [2D] array of point-like light-generating elements
- F21Y 2105/16: square or rectangular, e.g. for light panels
- F21Y 2113/13: comprising an assembly of point-like light sources
- F21Y 2115/10: Light-emitting diodes [LED]
- H05K 1/189: characterised by the use of flexible or folded printed circuits
- H05K 2201/0909: Preformed cutting or breaking line
- H05K 2201/10106: Light emitting diode [LED]
- H10H 20/0364: {of interconnections}
- H10H 20/8506: {Containers}
- H10K 2102/311: {Flexible OLED}
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A flexible light emitting diode (LED) sheet operable to (i) produce light, (ii) enhance an amount of light and/or connected light-emitting diodes and/or sheets that can be daisy chained together, and (iii) lower wattage consumption. Lighting options include single color, color changing lighting, and pixel lighting.

## Claims

### Claim 1

A lighting system comprising:
a flexible light emitting diode (LED) sheet operable to produce light, the flexible LED sheet including a plurality of conductive rows connecting a plurality of LEDs to form an LED array having one or more repeatable units,
wherein,
the lighting system is operable to provide pixel lighting, and
a repeatable unit of the plurality of repeatable units includes a 4040 chip and a WS2814 chip designated to LEDs of the repeatable unit.

### Claim 2 (depends on 1)

The lighting system of claim 1, further comprising:
a plurality of evenly spaced lines traversing the plurality of conductive rows to define a plurality of square or rectangle repeatable units.

### Claim 3 (depends on 2)

The lighting system of claim 2,
wherein,
the plurality of square or rectangle repeatable units include a plurality of cutting or puncturing areas, disposed between the plurality of conductive rows, and having one or more fixture attachment puncture indicators, such that the one or more fixture attachment puncture indicators can be selectively included in a remaining portion of the flexible LED sheet during an LED sheet cutting process.

### Claim 4 (depends on 3)

The lighting system of claim 3,
wherein,
LEDs corresponding to a conductive row of the plurality of conductive rows are electrically connected to another flexible LED sheet via a daisy chain configuration.

### Claim 5 (depends on 1)

The lighting system of claim 1, further comprising:
a data path running adjacent to a plurality of rows of LEDs and connecting the plurality of rows of LEDs by running back and forth along the plurality of rows of LEDs and perpendicularly connecting the plurality of rows of LEDs at alternating ends.

### Claim 6 (depends on 1)

The lighting system of claim 1, further comprising:
a plurality of SMD 3528 chips on the plurality of conductive rows with a one-to-one correspondence to a plurality of repeatable units, the plurality of SMD 3528 chips communicating with a controller of the lighting system.

### Claim 7 (depends on 1)

The lighting system of claim 1,
wherein,
the flexible LED sheet includes a plurality of repeatable units of LEDs electrically connected in a series.

### Claim 8 (depends on 1)

The lighting system of claim 1,
wherein,
the one or more repeatable units include a single repeatable unit of a plurality of repeatable units, the single repeatable unit containing a plurality of components including a first color LED, a second color LED, a third color LED, and a controller chip, the plurality of components being on a conductive row and spaced apart from other repeatable units of the plurality of repeatable units by:
a plurality of cutting or puncturing areas running parallel to the plurality of conductive rows between the single repeatable unit and the other repeatable units, and
a plurality of lines perpendicular to the plurality of conductive rows.

### Claim 9 (depends on 8)

The lighting system of claim 8, further comprising:
one or more fixation element indicators showing safe puncture areas within the plurality of cutting or puncturing areas.

### Claim 10 (depends on 9)

The lighting system of claim 9,
wherein,
the one or more fixation element indicators show the safe puncture areas on the plurality of lines.

### Claim 11 (depends on 9)

The lighting system of claim 9,
wherein,
the one or more fixation element indicators include one or more screw hole indicators to indicate where a fixation element may be extended through the flexible LED sheet without causing damage to the plurality of conductive rows or a data path.

### Claim 12 (depends on 1)

The lighting system of claim 1,
wherein,
the system is operable to provide a single color of light; and
a repeatable unit of the one or more repeatable units includes an SMD 3528 chip to control one or more LEDs of the repeatable unit.

### Claim 13

A lighting system operable to provide pixel lighting comprising:
a flexible light emitting diode (LED) sheet operable to produce light, the flexible LED sheet including a plurality of rows of LEDs arranged along a plurality of parallel conductive rows electrically connecting the plurality of rows of LEDs to form an LED array, the LED array having a plurality of repeatable units defined at least by a plurality of cutting or puncturing areas alternating with and running parallel to the plurality of rows of LEDs, a repeatable unit of the plurality of repeatable units includes a 4040 chip and a WS2814 chip designated to LEDs of the repeatable unit.

### Claim 14 (depends on 13)

The lighting system of claim 13,
wherein,
individual repeatable units of the plurality of repeatable units include a corresponding 5050 chip and a corresponding CRI 95+ chip, designated to components of the individual repeatable units; and
the system is operable to provide color changing lighting with the corresponding 5050 chip and the corresponding CRI 95+ chip designated to the individual repeatable units.

### Claim 15 (depends on 1)

The lighting system of claim 1, further comprising:
one or more connectors formed at an end of the flexible LED sheet for connecting the plurality of conductive rows to a power supply.

### Claim 16 (depends on 13)

The lighting system of claim 13,
wherein,
the plurality of parallel conductive rows alternate with a plurality of cutting or puncturing area rows, the plurality of cutting or puncturing area rows including a plurality of fixture element puncture indicators.

### Claim 17

A method of forming a lighting system to provide pixel lighting, the method comprising:
providing a flexible light emitting diode (LED) sheet including a plurality of repeatable units having a plurality of parallel conductive rows electrically connecting a plurality of rows of LEDs, a repeatable unit of the plurality of repeatable units includes a 4040 chip and a WS2814 chip designated to LEDs of the repeatable unit;
connecting an end of the flexible LED sheet to another flexible LED sheet with a daisy chain arrangement;
forming an attachment boundary of the flexible LED sheet that corresponds to a surface of an object; and
puncturing one or more fixture element puncture indicators, formed into a puncturing area in the flexible LED sheet, with one or more fixture elements to secure the flexible LED sheet to an illumination object.

### Claim 18 (depends on 17)

The method of claim 17,
wherein,
forming the attachment boundary includes trimming a repeatable unit from the flexible LED sheet such that a shape of the flexible LED sheet corresponds to a surface shape of the illumination object.

### Claim 19 (depends on 17)

The method of claim 17,
wherein,
the one or more fixture element puncture indicators are first indicators, and further comprising providing second indicators disposed along one or more lines formed into the flexible LED sheet and aligned perpendicularly with the plurality of parallel conductive rows.
