Electroluminescent display device
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- LG DISPLAY CO LTD
- Filing Date
- 2025-12-03
- Publication Date
- 2026-06-16
AI Technical Summary
【0012】 本発明の利点及び特徴、並びにそれらを達成する方法は添付図面に基づいて詳細に後述する多様な例を参照すると明らかになるであろう。しかしながら、本発明は以下で開示する一例に限定されるものではなく、互いに異なる多様な形態に具現可能であり、本実施例は本発明の開示を完全にし、本発明の技術思想が属する技術分野で通常の知識を有する者に技術思想の範疇を完全に知らせるために提供するものであり、本発明は特許請求の範囲の範疇によって定義されるだけである。
Smart Images
Figure 2026097775000001_ABST
Abstract
Claims
1. A substrate having a first subpixel, a second subpixel, and a third subpixel, The first electrodes provided on the substrate for each of the first to third subpixels, A light-emitting portion provided on the first electrode, The light-emitting portion includes a second electrode, The light-emitting section includes a first stack containing a first light-emitting layer, a second stack containing a second light-emitting layer, and a charge generation layer disposed between the first stack and the second stack. The charge generation layer includes a first charge generation layer disposed in the first subpixel, and a second charge generation layer disposed in the second and third subpixels. An electroluminescent display device wherein the second charge generation layer does not overlap with the first subpixel and is formed continuously across the second and third subpixels.
2. The electric field light emission display device according to claim 1, wherein the electrical conductivity of the second charge generation layer is greater than that of the first charge generation layer.
3. The charge generation layer includes an N-type charge generation layer and a P-type charge generation layer. The electroluminescent display device according to claim 1, wherein the P-type charge generation layer includes the first charge generation layer and the second charge generation layer.
4. The electroluminescent display device according to claim 1, wherein one of the second subpixel and the third subpixel is a blue subpixel and the other is a green subpixel.
5. The electroluminescent display device according to claim 1, wherein the first charge generation layer does not overlap with the second subpixel and the third subpixel.
6. The electroluminescent display device according to claim 1, wherein the first charge generation layer is separated from the second charge generation layer.
7. The electroluminescent display device according to claim 1, wherein the first charge generation layer is formed continuously over the first subpixel, the second subpixel, and the third subpixel.
8. The electroluminescent display device according to claim 7, wherein the second charge generation layer is disposed above or below the first charge generation layer.
9. The second stack includes a hole transport layer disposed on the charge generation layer, The hole transport layer includes a first hole transport layer disposed in the first subpixel, and a second hole transport layer disposed in the second and third subpixels. The electroluminescent display device according to claim 1, wherein the second hole transport layer does not overlap with the first subpixel and is formed continuously across the second subpixel and the third subpixel.
10. The first hole transport layer is formed in the same pattern as the first charge generation layer, The field-emitting light display device according to claim 9, wherein the second hole transport layer is formed in the same pattern as the second charge generation layer.
11. A plurality of pixels, including a first subpixel, a second subpixel, and a third subpixel, arranged in a first direction and a second direction, The plurality of pixels include a light-emitting section which includes a charge generation layer, The charge generation layer includes a first charge generation layer disposed on the first subpixel, and a second charge generation layer that does not overlap with the first subpixel and is continuously formed across the second and third subpixels. The second charge generation layer is formed continuously across two or more pixels arranged in the first direction in an electroluminescent display device.
12. The field-emitting display device according to claim 11, wherein the second charge generation layer is disconnected in a plurality of pixels arranged in the second direction.
13. The field-emitting display device according to claim 11, wherein the second charge generation layer is formed continuously over a plurality of pixels arranged in the first and second directions.
14. The field-emitting display device according to claim 11, wherein the first charge generation layer is formed in an island-like structure over a plurality of pixels arranged in a first direction and a second direction.
15. The field-emitting light display device according to claim 11, wherein the first charge generation layer is formed continuously over two or more pixels arranged in a first direction.
16. The field-emitting display device according to claim 11, wherein the first charge generation layer is formed continuously over a plurality of pixels arranged in a first direction and a second direction.
17. The electric field light emission display device according to claim 11, wherein the electrical conductivity of the second charge generation layer is greater than that of the first charge generation layer.
18. The charge generation layer includes an N-type charge generation layer and a P-type charge generation layer. The electroluminescent display device according to claim 11, wherein the P-type charge generation layer includes the first charge generation layer and the second charge generation layer.
19. The electroluminescent display device according to claim 11, wherein one of the second subpixel and the third subpixel is a blue subpixel and the other is a green subpixel.