# US 10,374,017 B2 · High resolution low power consumption OLED display with extended lifetime

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,374,017 B2
- Document ID: US10374017B2
- Status: Granted
- Kind: B2
- Application number: 15/373,090
- Filed: 2016-12-08
- Published: 2017-03-30
- Granted: 2019-08-06
- Earliest claimed: 2013-01-18
- Assignees: Universal Display Corporation
- Applicants: Universal Display Corporation
- Inventors: Michael Hack; Michael Stuart Weaver; Julia J. Brown; Xin Xu
- Web page: https://patentgrep.com/patent/US10374017B2

## CPC

- H10K 59/351: {comprising more than three subpixels, e.g. red-green-blue-white [RGBW]}
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 59/35: comprising red-green-blue [RGB] subpixels
- H10K 59/38: comprising colour filters or colour changing media [CCM]
- H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K 71/166: {using selective deposition, e.g. using a mask}
- H10K 59/1201: {Manufacture or treatment}
- H10K 2101/10: Triplet emission
- H10K 2102/3026: {Top emission}
- H10K 2102/321: {Inverted OLED, i.e. having cathode between substrate and anode}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

Arrangements of pixel components that allow for full-color devices, while using emissive devices that use blue color altering layers in conjunction with blue emissive regions, that emit at not more than two colors, and/or that use limited number of color altering layers, are provided. Devices disclosed herein also may be achieved using simplified fabrication techniques compared to conventional side-by-side arrangements, because fewer masking steps may be required.

## Claims

### Claim 1

A method of fabricating a full-color OLED pixel arrangement, said method comprising:
depositing a first emissive material through a first pixel mask over a substrate;
depositing a second emissive material through a second pixel mask over the substrate, the second emissive material configured to emit a different color than the first emissive material; and
disposing a first color altering layer in a stack with a first portion of the second emissive material;
wherein all emissive materials in the full-color OLED pixel arrangement are deposited using no more than two depositions of emissive material through one or more physical masks.

### Claim 2 (depends on 1)

The method of claim 1, wherein the full-color OLED pixel arrangement is fabricated using no more than two depositions of emissive material through one or more physical masks.

### Claim 3 (depends on 1)

The method of claim 1, wherein a plurality of openings in the second pixel mask have an area of about half the emissive area of a pixel of the full-color OLED pixel arrangement.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
disposing a second color altering layer in a stack with a second portion of the second emissive material.

### Claim 5 (depends on 1)

The method of claim 1, wherein the first emissive material has an area over the substrate not less than the combined area of the first and second portions of the second emissive material.

### Claim 6 (depends on 1)

The method of claim 1, wherein the first emissive material comprises a phosphorescent emissive material.

### Claim 7 (depends on 1)

The method of claim 1, wherein the first emissive material comprises a fluorescent emissive material.

### Claim 8 (depends on 1)

The method of claim 1, wherein the first color altering layer comprises at least one selected from the group consisting of: a color conversion layer, a color filter, a band-pass filter, and a cut-off filter.

### Claim 9 (depends on 1)

The method of claim 1, wherein the first emissive material is a blue-emitting emissive material.

### Claim 10 (depends on 1)

The method of claim 1, wherein the second emissive material is a yellow-emitting emissive material.

### Claim 11 (depends on 10)

The method of claim 10, wherein at least a portion of the second emissive region is left unfiltered.

### Claim 12 (depends on 1)

The method of claim 1, wherein the second pixel mask is the same as, or has the same physical arrangement as, the first pixel mask.