Display apparatus
地域：
Seoul
摘要
Discussed is a display apparatus including a substrate having a plurality of subpixels with a first subpixel and a second subpixel, an insulating layer having a trench on the substrate, a first electrode provided in each of the first and second subpixels on the insulating layer, a light emitting layer provided on the insulating layer and the first electrode, a second electrode provided on the light emitting layer, an encapsulation layer provided on the second electrode, and a light absorption layer provided in a region overlapping the trench. The trench and the light absorption layer can be provided in a boundary region between the first subpixel and the second subpixel.
說明書
This application claims the priority benefit of the Korean Patent Application No. 10-2020-0189673 filed in the Republic of Korea on Dec. 31, 2020, the entire contents of which are hereby expressly incorporated by reference as if fully set forth herein into the present application.
The present disclosure relates to a display apparatus.
With the development of the information society, demand for display apparatuses for displaying an image has increased in various forms. Accordingly, various display apparatuses such as liquid crystal displays (LCDs), plasma display panels (PDPs), and organic light emitting displays (OLEDs) have recently been used.
Among the display apparatuses, an organic light emitting display apparatus is a self-luminous type display apparatus, which has superior viewing angle and contrast ratio compared to an LCD, is lightweight and thin because it does not require a separate backlight, and is advantageous in power consumption. In addition, the organic light emitting display apparatus can be driven with a low DC voltage, can have a fast response speed, and can incur low manufacturing costs.
Meanwhile, in a plurality of pixels of an organic light emitting display, a lateral leakage current (LLC) can flow between neighboring pixels to deteriorate display quality.
權(quán)利要求
What is claimed is:1. A display apparatus comprising:a substrate including a plurality of subpixels including a first subpixel and a second subpixel; an insulating layer including a trench on the substrate; a first electrode provided in each of the first and second subpixels on the insulating layer; a light emitting layer provided on the insulating layer and the first electrode; a second electrode provided on the light emitting layer; an encapsulation layer provided on the second electrode; and a light absorption layer provided in a region overlapping the trench, wherein the trench and the light absorption layer are provided in a boundary region between the first subpixel and the second subpixel, wherein a portion of the light emitting layer is disconnected inside the trench, wherein the light emitting layer includes:a first stack provided on the insulating layer; a charge generating layer provided on the first stack; and a second stack provided on the charge generating layer, and wherein the first stack and the charge generating layer are disconnected in the trench. 2. The display apparatus of claim 1 , wherein the encapsulation layer includes:a first encapsulation layer provided on the second electrode; and a second encapsulation layer provided on the first encapsulation layer, wherein the light absorption layer is provided between the first encapsulation layer and the second encapsulation layer. 3. The display apparatus of claim 2 , whereinthe first encapsulation layer has a concave shape in a region overlapping the trench, and the light absorption layer fills the region of the first encapsulation layer. 4. The display apparatus of claim 3 , wherein upper surfaces of the first encapsulation layer and the light absorption layer are flat. 5. The display apparatus of claim 2 , wherein the first encapsulation layer is in contact with the second encapsulation layer in a region overlapping the first electrode. 6. The display apparatus of claim 1 , wherein at least a portion of the second stack is disconnected and at least a portion of the second stack is continuous. 7. The display apparatus of claim 6 , whereinthe second stack includes a second hole transport layer, a second organic light emitting layer, a second electron transport layer, and an electron injection layer being sequentially stacked, the second hole transport layer, the second organic light emitting layer, and the second electron transport layer are disconnected, and the electron injection layer is continuous. 8. The display apparatus of claim 1 , further comprising:a bank covering an end of the first electrode, wherein one end of the bank is in contact with an entrance of the trench. 9. The display apparatus of claim 1 , further comprising:a first color filter provided in the first subpixel; and a second color filter provided in the second subpixel, wherein the light absorption layer is provided in a boundary region of the first color filter and the second color filter. 10. The display apparatus of claim 1 , whereinthe plurality of subpixels further include a third subpixel, and a first reflective electrode, a second reflective electrode and a third reflective electrodes are further provided inside the insulating layer. 11. The display apparatus of claim 10 , whereinthe insulating layer is formed by sequentially stacking a first insulating layer, a second insulating layer, and a third insulating layer on a circuit element layer, the first reflective electrode is provided on the first insulating layer in a region having the first subpixel, the second reflective electrode is provided on the second insulating layer in a region having the second subpixel, and the third reflective electrode is provided on the third insulating layer in a region having the third subpixel. 12. The display apparatus of claim 1 , whereinthe first and second subpixels are arranged in a first direction, the plurality of subpixels additionally include another first subpixel adjacent to the first subpixel in a second direction and configured to emit light of a same color, and another second subpixel adjacent to the second subpixel in the second direction and configured to emit light of a same color, and the trench is additionally provided in a boundary region between the another first subpixel and the another second subpixel and extends from a first side of the substrate to a second side of the substrate. 13. The display apparatus of claim 12 , wherein the light absorption layer is additionally provided in a boundary region between the another first subpixel and the another second subpixel, and from the first side of the substrate to the second side of the substrate. 14. The display apparatus of claim 12 , wherein the trench is additionally provided in a boundary region between the first subpixel and the another first subpixel and in a boundary region between the second subpixel and the another second subpixel, and extends from a third side of the substrate to a fourth side of the substrate. 15. The display apparatus of claim 14 , wherein the light absorption layer is additionally provided in a boundary region between the first subpixel and the another first subpixel and in a boundary region between the second subpixel and the another second subpixel, and extends from the third side of the substrate to the fourth side of the substrate.
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