# US 2026/0100153 A1 · Tunable light emissions for circadian moderation

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- Number: US 2026/0100153 A1
- Document ID: US20260100153A1
- Status: Published application
- Kind: A1
- Application number: 19/417,990
- Filed: 2025-12-12
- Published: 2026-04-09
- Earliest claimed: 2023-06-13
- Assignees: Korrus, Inc.
- Applicants: Korrus, Inc.
- Inventors: Benjamin HARRISON; Paul Kenneth PICKARD; William COULTER; Sina AFSHARI
- Web page: https://patentgrep.com/patent/US20260100153A1

## CPC

- A61N 5/0618: {Psychological treatment}
- G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)}
- A61M 21/02: for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia (for massage A61H; electrotherapy A61N, e.g. applying alternating or intermittent electric currents for producing anaesthesia A61N1/36021)
- G09G 3/30: using electroluminescent panels
- A61M 2021/0044: {by the sight sense}
- A61N 5/0622: {Optical stimulation for exciting neural tissue}
- A61N 2005/0626: {Monitoring, verifying, controlling systems and methods}
- A61N 2005/0662: {Visible light}
- G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED]
- G09G 2320/0666: for control of colour parameters, e.g. colour temperature
- G09G 2354/00: Aspects of interface with display user
- G09G 2380/08: Biomedical applications
- A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B)
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

A display comprising: (a) a plurality of pixels, each pixel comprising at least one tunable light emitter to emit tuned light in at least two modes, a low equivalent melanopic lux (EML) mode and a high EML mode, wherein said tuned light in either said low EML mode or said high EML mode spans substantially the visible light range; and (b) circuitry to drive said at least one tunable light emitter in said at least two modes.

## Claims

### Claim 1

A display comprising:
a plurality of pixels, each pixel comprising at least one tunable light emitter to emit tuned light in at least two modes, a low equivalent melanopic lux (EML) mode and a high EML mode, wherein said tuned light in either said low EML mode or said high EML mode spans substantially the visible light range; and
circuitry to drive said at least one tunable light emitter in said at least two modes.

### Claim 2 (depends on 1)

The display of claim 1, wherein said tuned light in said high EML mode and said tuned light in said low EML mode are metameric spectrums.

### Claim 3 (depends on 1)

The display of claim 1, wherein said at least one tunable light emitter comprising just one tunable light emitter configured to emit a configurable spectrum.

### Claim 4 (depends on 3)

The display of claim 3, wherein said just one tunable light emitter emits two peaks, each of said two peaks being tunable.

### Claim 5 (depends on 4)

The display of claim 4, wherein said two peaks are tunable over at least a substantial portion of the visible light spectrum.

### Claim 6 (depends on 5)

The display of claim 5, wherein said substantial portion of the visible light spectrum is from 440 to 630 nm, or from 420 to 640 nm, or from 400 to 700 nm.

### Claim 7 (depends on 3)

The display of claim 3, wherein said just one tunable light emitter is a pixel.

### Claim 8 (depends on 1)

The display of claim 1, wherein said at least one tunable light emitter comprising two tunable light emitters, each of said two tunable light emitters emitting a tunable peak.

### Claim 9 (depends on 8)

The display of claim 8, wherein each tunable peak is tunable over at least a substantial portion of the visible light spectrum.

### Claim 10 (depends on 9)

The display of claim 9, wherein said substantial portion of the visible light spectrum is from 440 to 630 nm, or from 420 to 640 nm, or from 400 to 700 nm.

### Claim 11 (depends on 8)

The display of claim 8, wherein each of said tunable light emitter is tunable over different portions of the visible light spectrum.

### Claim 12 (depends on 11)

The display of claim 11, wherein one of said tunable light emitters is tunable at least in the range of 540 to 620 nm, or 530 to 630 nm, or 520 to 640 nm, and the other one of said tunable light emitters is tunable at least in the range of 440 to 490 nm, 430 to 500 nm, or 420 to 510 nm.

### Claim 13 (depends on 8)

The display of claim 8, wherein said two tunable light emitters forms a pixel.

### Claim 14 (depends on 1)

The display of claim 1, wherein said at least one tunable light emitter comprising a plurality of tunable light emitters, each of said two tunable light emitters emitting a tunable peak having a range of less than 50 nm, or 40 nm, or 30 nm.

### Claim 15 (depends on 14)

The display of claim 14, wherein said plurality of tunable light emitters comprises three tunable light emitters.

### Claim 16 (depends on 15)

The display of claim 15, wherein said three tunable light emitters comprise a tunable blue emitter, a tunable cyan emitter, and a tunable red emitter.

### Claim 17 (depends on 16)

The display of claim 16, wherein said tunable blue emitter is tunable in the range of at least 440 to 460 nm, 430 to 470 nm, or 420 to 475 nm, said tunable cyan emitter is tunable in the range of at least 510 to 530 nm, 505 to 540 nm, or 500 to 550 nm, and said tunable red emitter is tunable in the range of at least 600 to 620 nm, 590 to 630 nm, or 500 to 630 nm.

### Claim 18 (depends on 15)

The display of claim 15, wherein said three of said tunable light emitters forms a pixel.

### Claim 19 (depends on 1)

The display of claim 1, wherein said tuned light in said high EML mode and said tuned light in said low EML mode have an EML ratio of no less than 2:1, or 3:1, or 4:1 or 5:1, or 6:1, or 7:1, or 8:1, or 9:1, or 10:1.

### Claim 20 (depends on 19)

The display of claim 19, wherein said tuned light in said low EML mode has an EML no greater than 180, or no greater than 170, or no greater than 160, or no greater than 150.