# US 10,481,431 B2 · Display device

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- Number: US 10,481,431 B2
- Document ID: US10481431B2
- Status: Granted
- Kind: B2
- Application number: 16/423,142
- Filed: 2019-05-27
- Published: 2019-09-26
- Granted: 2019-11-19
- Earliest claimed: 2017-08-01
- Assignees: Innolux Corporation
- Applicants: InnoLux Corporation
- Inventors: Hsiao-Lang Lin; Tsung-Han Tsai
- Web page: https://patentgrep.com/patent/US10481431B2

## CPC

- G02F 1/133609: {including means for improving the color mixing, e.g. white}
- H10K 59/352: {the areas of the RGB subpixels being different}
- G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)}
- G02F 1/133514: {Colour filters}
- G02F 1/133553: {Reflecting elements (associated to illuminating devices G02F1/133605)}
- G02F 1/133603: {with LEDs}
- G02F 1/133621: {providing coloured light (G02F1/133617, G02F1/133533 take precedence)}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 3/0481: based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F 21/32: using biometric data, e.g. fingerprints, iris scans or voiceprints
- H10H 20/84: Coatings, e.g. passivation layers or antireflective coatings
- H10K 59/38: comprising colour filters or colour changing media [CCM]
- H10K 59/50: OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
- H10W 90/00: Package configurations
- G02F 1/133614: {using photoluminescence, e.g. phosphors illuminated by UV or blue light}
- G02F 1/133617: {Illumination with ultraviolet light; Luminescent elements or materials associated to the cell}
- G02F 2202/36: Micro- or nanomaterials
- G06F 2221/2133: Verifying human interaction, e.g., Captcha
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- 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

The disclosure provides a display device, including a display unit emitting an output light having an output spectrum corresponding to a highest gray level of the display device. A maximum peak of the output spectrum from 543 nm to 780 nm is defined as an intensity peak corresponding to a wavelength, an intensity integral of the output spectrum from the first wavelength to 780 nm is defined as a first intensity integral, and an intensity integral of the output spectrum from 543 nm to the first wavelength is defined as a second intensity integral. A ratio of an intensity integral of the output spectrum from 380 nm to 543 nm to a sum of the first intensity integral and the second intensity integral is greater than or equal to 0.05% and less than or equal to 4.00%.

## Claims

### Claim 1

A display device, comprising:
a display unit emitting an output light having an output spectrum corresponding to a highest gray level of the display device,
wherein a maximum peak of the output spectrum from 543 nm to 780 nm is defined as a first intensity peak corresponding to a first wavelength, an intensity integral of the output spectrum from the first wavelength to 780 nm is defined as a first intensity integral, an intensity integral of the output spectrum from 543 nm to the first wavelength is defined as a second intensity integral, an intensity integral of the output spectrum from 380 nm to 543 nm is defined as a third intensity integral, a sum of the first intensity integral and the second intensity integral is defined as a first sum, a ratio of the third intensity integral to the first sum is defined as a first ratio, and the first ratio is greater than or equal to 0.05% and less than or equal to 4.00%.

### Claim 2 (depends on 1)

The display device according to claim 1, wherein a difference of subtracting the second intensity integral from the first intensity integral is defined as a first difference, a ratio of the third intensity integral to the first difference is defined as a second ratio, and the second ratio is greater than or equal to 0.5% and less than or equal to 38.0%.

### Claim 3 (depends on 1)

The display device according to claim 1, wherein an intensity integral of the output spectrum from 380 nm to 496 nm is defined as a fourth intensity integral, an intensity integral of the output spectrum from 496 nm to 543 nm is defined as a fifth intensity integral, a ratio of the fifth intensity integral to the fourth intensity integral is defined as a third ratio, and the third ratio is greater than or equal to 1.0% and less than or equal to 77.0%.

### Claim 4 (depends on 1)

The display device according to claim 1, wherein a maximum peak of the output spectrum from 380 nm to 496 nm is defined as a second intensity peak, a maximum peak of the output spectrum from 496 nm to 543 nm is defined as a third intensity peak, and the second intensity peak is greater than the third intensity peak.

### Claim 5 (depends on 1)

The display device according to claim 1, wherein a second wavelength and a third wavelength respectively corresponds to an intensity of a half of the first intensity peak, the second wavelength is less than the third wavelength, an intensity integral of the output spectrum from 543 nm to the second wavelength is defined as a sixth intensity integral, an intensity integral of the output spectrum from the third wavelength to 780 nm is defined as a seventh intensity integral, a ratio of the sixth intensity integral to the seventh intensity integral is defined as a fourth ratio, and the fourth ratio is greater than or equal to 37.0% and less than or equal to 99.0%.

### Claim 6 (depends on 1)

The display device according to claim 1, wherein a fourth wavelength and a fifth wavelength respectively corresponds to an intensity of a quarter of the first intensity peak, the fourth wavelength is less than the fifth wavelength, a ratio of an intensity integral of the output spectrum from 543 nm to the fourth wavelength to an intensity integral of the output spectrum from the fifth wavelength to 780 nm is greater than or equal to 37.0% and less than or equal to 82.0%.

### Claim 7 (depends on 1)

The display device according to claim 1, wherein a sixth wavelength and a seventh wavelength respectively corresponds to an intensity of an eighth of the first intensity peak, the sixth wavelength is less than the seventh wavelength, a ratio of an intensity integral of the output spectrum from 543 nm to the sixth wavelength to an intensity integral of the output spectrum from the seventh wavelength to 780 nm is greater than or equal to 26.0% and less than or equal to 90.0%.

### Claim 8 (depends on 1)

The display device according to claim 1, wherein a maximum peak of the output spectrum from 380 nm to 543 nm is defined as a fourth intensity peak, a ratio of the fourth intensity peak to the first intensity peak is defined as a fifth ratio, and the fifth ratio is greater than or equal to 0.1% and less than or equal to 1.5%.

### Claim 9 (depends on 1)

The display device according to claim 1, wherein the first wavelength is greater than or equal to 604 nm and less than or equal to 644 nm.

### Claim 10 (depends on 1)

The display device according to claim 1, further comprising:
a first substrate and a second substrate disposed opposite to each other;
a light modulating layer disposed between the first substrate and the second substrate;
a backlight unit, wherein the first substrate is disposed between the light modulating layer and the backlight unit; and
a light converting layer, wherein the light converting layer is disposed between the backlight unit and the first substrate, the light converting layer is disposed between the light modulating layer and the second substrate, or the first substrate is disposed between the light modulating layer and the light converting layer.

### Claim 11 (depends on 10)

The display device according to claim 10, wherein the converting layer comprises a first color adjusting material and a second color adjusting material, the third intensity integral of the output spectrum of the output light is corresponding to the first color adjusting material, and the first intensity integral being greater than the second intensity integral is corresponding to the second color adjusting material.

### Claim 12 (depends on 10)

The display device according to claim 10, further comprising a display panel and another light converting layer, wherein the display panel comprises the light converting layer, and the another light converting layer is disposed between the backlight unit and the display panel.

### Claim 13 (depends on 1)

The display device according to claim 1, further comprising:
a substrate; and
a plurality of light sources disposed on the substrate.

### Claim 14 (depends on 13)

The display device according to claim 13, wherein one of the plurality of light sources in the display unit comprises a first color adjusting material and a second color adjusting material, the third intensity integral of the output spectrum of the output light is corresponding to the first color adjusting material, and a difference between the first intensity integral and the second intensity integral of the output spectrum of the output light is corresponding to the second color adjusting material.

### Claim 15 (depends on 13)

The display device according to claim 13, further comprising a light converting layer, wherein the light converting layer is disposed on the plurality of light sources, the third intensity integral of the output spectrum of the output light is corresponding to the light converting layer, and a difference between the first intensity integral and the second intensity integral of the output spectrum of the output light is corresponding to the light converting layer.

### Claim 16 (depends on 15)

The display device according to claim 15, wherein the plurality of light sources generate light with same color.

### Claim 17 (depends on 1)

The display device according to claim 1, wherein the first intensity integral is greater than the second intensity integral.

### Claim 18 (depends on 1)

The display device according to claim 1, wherein the first sum is greater than the third intensity integral.

### Claim 19 (depends on 1)

The display device according to claim 1, wherein the output spectrum from 380 nm to 543 nm includes at least two intensity peaks.

### Claim 20 (depends on 1)

The display device according to claim 1, wherein the display unit is a red sub-pixel.