Display panel, display mother board, preparation method of display mother board and organic residue detection method

• Main Authors: ZHAO JIAXING, YU JIJI, GOU YAPENG, GAO JINLONG, YANG MINGYI
• Format: Patent
• Language: Chinese; English
• Published: 02.01.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The invention discloses a display panel, a display mother board and a preparation method thereof, and an organic residue detection method. The display mother board comprises a substrate; the display panel comprises a first groove and at least one first film layer, and the side wall of the first groove is formed by the at least one first film layer; the test structure is located in the second area, the test structure comprises a second groove, at least one second film layer, a first metal layer and a second metal layer, the side wall of the second groove is formed by the at least one second film layer, the at least one second film layer comprises at least one organic film layer, each second film layer and one first film layer are arranged on the same layer, and the first metal layer and the second film layer are arranged on the same layer; the first metal layer and the second metal layer are configured to detect whether organic residues of at least one organic film layer exist at the bottom of the second groov