Heterocyclic compound, organic light-emitting element comprising same, and composition for organic material layer
US-2024298525-A1 · Sep 5, 2024 · US
Phase-transition optical isomer compound, transparent electroluminescent display device and method of fabricating the transparent electroluminescent display device
US2022013726A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022013726-A1 |
| Application number | US-202117484893-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 24, 2021 |
| Priority date | Dec 8, 2017 |
| Publication date | Jan 13, 2022 |
| Grant date | — |
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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
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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 is a compound in Formula 1 when a visible light is irradiated, and wherein the phase-transition optical isomer compound is a compound in Formula 2 when a ultraviolet ray is irradiated:
Assignees
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Classifications
Forming conductive regions or layers, e.g. electrodes · CPC title
- C07D409/14Primary
containing three or more hetero rings · CPC title
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US2022013726A1 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 C07D409/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jan 13 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).