# US 2019/0172879 A1 · Double sided organic light-emitting display apparatus and its manufacturing method thereof

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- Number: US 2019/0172879 A1
- Document ID: US20190172879A1
- Status: Published application
- Kind: A1
- Application number: 16/258,768
- Filed: 2019-01-28
- Published: 2019-06-06
- Earliest claimed: 2016-07-13
- Assignees: Wuhan China Star Optoelectronics Technology Co., L td.
- Applicants: Wuhan China Star Optoelectronics Technology Co., Ltd.
- Inventors: Jhih-jie HUANG; Bo LIANG; Wei WANG
- Web page: https://patentgrep.com/patent/US20190172879A1

## CPC

- H10K 77/111: {Flexible substrates}
- H10K 85/111: {comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene}
- H10K 59/12: Active-matrix OLED [AMOLED] displays
- H10K 59/1201: {Manufacture or treatment}
- H10K 59/878: {comprising reflective means}
- H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K 2102/3031: {Two-side emission, e.g. transparent OLEDs [TOLED]}
- H10K 2102/311: {Flexible OLED}
- Y02E 10/549: Organic PV cells
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A double-sided organic light-emitting display apparatus includes: a rigid substrate; a transmission flexible substrate and a reflective flexible substrate formed on the rigid substrate; a display substrate having a plurality of switching elements and formed on the transmission flexible substrate and the reflective flexible substrate; and a top-emission OLED light-emitting layer and a bottom-emission OLED light-emitting layer formed on the display substrate. The top-emission OLED light-emitting layer is corresponding to the reflective flexible substrate and the bottom-emission OLED light-emitting layer is corresponding to the transmission flexible substrate. The OLED display apparatus can serve as a double-sided display, and because of the use of the flexible substrate, it also has the advantage of easy carrying and flexibility.

## Claims

### Claim 1

A double-sided organic light-emitting display apparatus, comprising:
a rigid substrate;
a transmission flexible substrate and a reflective flexible substrate formed on the rigid substrate;
a display substrate having a plurality of switching elements formed on the transmission flexible substrate and the reflective flexible substrate; and
a top-emission organic light-emitting diode (OLED) light-emitting layer and a bottom-emission OLED light-emitting layer formed on the display substrate, wherein the top-emission OLED light-emitting layer is corresponding to the reflective flexible substrate and the bottom-emission OLED light-emitting layer is corresponding to the transmission flexible substrate.

### Claim 2 (depends on 1)

The double-sided organic light-emitting display apparatus according to claim 1, wherein the number of the transmission flexible substrate and the reflective flexible substrate are one, and the number of the top-emission OLED light-emitting layer and a bottom-emission OLED light-emitting layer are one correspondingly.

### Claim 3 (depends on 1)

The double-sided organic light-emitting display apparatus according to claim 1, wherein the number of the transmission flexible substrate is one and the number of the reflective flexible substrate are two, wherein the two reflective flexible substrates are formed separately on the opposite sides of the transmission flexible substrate; and the number of the top-emission OLED light-emitting layer are two and the number of the bottom-emission OLED light-emitting layer are one correspondingly wherein two of the top-emission OLED light-emitting layer are formed corresponding to two of the reflective flexible substrates separately.

### Claim 4 (depends on 1)

The double-sided organic light-emitting display apparatus according to claim 1, wherein both the number of the transmission flexible substrate and the number of the reflective flexible substrate are more than one, wherein the plurality of the reflective flexible substrates and the plurality of the transmission flexible substrate are interlaced formed; and both the number of the top-emission OLED light-emitting layer and the number of the bottom-emission OLED light-emitting layer are more than one correspondingly, wherein the plurality of the top-emission OLED light-emitting layer and the plurality of the bottom-emission OLED light-emitting layer are interlaced formed.

### Claim 5 (depends on 1)

The double-sided organic light-emitting display apparatus according to claim 1, wherein a material of the transmission flexible substrate is selected from one or a combination of at least two of polyimide, polyetherimide, polyphenylene sulfide, and polyarylate, and a material of the reflective flexible substrate is selected from one or a combination of at least two of yellow poly polyimides, polyetherimides, polyphenylene sulfide, and polyarylate.

### Claim 6 (depends on 2)

The double-sided organic light-emitting display apparatus according to claim 2, wherein a material of the transmission flexible substrate is selected from one or a combination of at least two of polyimide, polyetherimide, polyphenylene sulfide, and polyarylate, and a material of the reflective flexible substrate is selected from one or a combination of at least two of yellow poly polyimides, polyetherimides, polyphenylene sulfide, and polyarylate.

### Claim 7 (depends on 3)

The double-sided organic light-emitting display apparatus according to claim 3, wherein a material of the transmission flexible substrate is selected from one or a combination of at least two of polyimide, polyetherimide, polyphenylene sulfide, and polyarylate, and a material of the reflective flexible substrate is selected from one or a combination of at least two of yellow poly polyimides, polyetherimides, polyphenylene sulfide, and polyarylate.

### Claim 8 (depends on 4)

The double-sided organic light-emitting display apparatus according to claim 4, wherein a material of the transmission flexible substrate is selected from one or a combination of at least two of polyimide, polyetherimide, polyphenylene sulfide, and polyarylate, and a material of the reflective flexible substrate is selected from one or a combination of at least two of yellow poly polyimides, polyetherimides, polyphenylene sulfide, and polyarylate.