Display device including a light blocking layer over a pixel defining layer

• Main Authors: Song, Inseok, Kim, Byung-chul, Lee, Wooyoung, Mun, Hyeran, Yeon, Kiyoung, Lee, Yui-ku, Kim, Inok, Kim, Sujeong, Joo, Sun-kyu, Huh, Chul
• Format: Patent
• Language: English
• Published: 30.01.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

A display device including a substrate that includes a circuit layer; an insulating layer on the substrate; a pixel defining layer on the insulating layer, the pixel defining layer having an opening exposing a region of a top surface of the insulating layer; a light blocking layer covering a top surface and a side surface of the pixel defining layer; and an organic electroluminescent element in the opening, wherein the organic electroluminescent element includes a first electrode on the region of the top surface of the insulating layer exposed through the opening; at least one organic layer on the first electrode; and a second electrode on the at least one organic layer.