Organic light-emitting diode display having high aperture ratio and method for manufacturing the same
US-2016141349-A1 · May 19, 2016 · US
Phase-transition optical isomer compound, transparent electroluminescent display device and method of fabricating the transparent electroluminescent display device
US11744139B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11744139-B2 |
| Application number | US-202117484893-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 24, 2021 |
| Priority date | Dec 8, 2017 |
| Publication date | Aug 29, 2023 |
| Grant date | Aug 29, 2023 |
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- Title
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Abstract
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A phase-transition optical isomer compound is described, a transparent EL display device including the phase-transition optical isomer compound and a method of fabricating the EL display device, where a phase of the phase-transition optical isomer compound is transited by light irradiation and a second electrode of the EL display device is selectively deposited without a masking process.
First claim
Opening claim text (preview).
What is claimed is: 1. A phase-transition optical isomer compound of formula: wherein each of R1 to R4 is independently selected from a heteroaromatic group containing a nitrogen atom. 2. The phase-transition optical isomer compound according to claim 1 , wherein the phase-transition optical isomer compound is selected from the group consisting of: 3. The phase-transition optical isomer compound according to claim 1 , wherein a difference between a glass temperature in a rubbery phase of the phase-transition optical isomer compound and a glass temperature in a glassy phase of the phase-transition optical isomer compound is between about 100 to 300° C. 4. The phase-transition optical isomer compound according to claim 1 , wherein each of R1 to R4 is independently selected from pyridyl and quinolinyl. 5. The phase-transition optical isomer compound according to claim 1 , wherein the phase-transition optical isomer compound exhibits a rubbery phase when a visible light is irradiated, and wherein the phase-transition optical isomer compound exhibits a glassy phase when a ultraviolet ray is irradiated. 6. The phase-transition optical isomer compound according to claim 1 , wherein the phase-transition optical isomer compound has a lowest unoccupied molecular orbital level of −2.6 to −2.1 eV and a highest occupied molecular orbital level of −6.2 to −6.0 eV. 7. The phase-transition optical isomer compound according to claim 1 , wherein the phase-transition optical isomer compound comprises a compound in Formula 1 in a rubbery phase 8. The phase-transition optical isomer compound according to claim 1 , wherein the phase-transition optical isomer compound comprises a compound in Formula 2 in glassy phase:
Assignees
Inventors
Classifications
- H10K71/60Primary
Forming conductive regions or layers, e.g. electrodes · CPC title
- C07D409/14Primary
containing three or more hetero rings · CPC title
Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title
comprising only sulfur as heteroatom · CPC title
- H10K85/6572Primary
comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole · CPC title
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- What does patent US11744139B2 cover?
- A phase-transition optical isomer compound is described, a transparent EL display device including the phase-transition optical isomer compound and a method of fabricating the EL display device, where a phase of the phase-transition optical isomer compound is transited by light irradiation and a second electrode of the EL display device is selectively deposited without a masking process.
- Who is the assignee on this patent?
- Lg Display Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H10K71/60. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 29 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).