FLEXIBLE CIRCUIT BOARD, DISPLAY PANEL AND PREPARATION METHOD THEREFOR, AND DISPLAY DEVICE

Disclosed in the present application are a flexible circuit board, a display panel and a preparation method therefor, and a display device. The flexible circuit board comprises a circuit substrate; the circuit substrate is a multi-layer flexible circuit board; at least two layers of the multi-layer flexible circuit board are each provided with an electroplating sub-layer; a first surface of the multi-layer flexible circuit board is provided with a plurality of groove lines; and the groove depth of the groove lines is not less than the depth of the electroplating sub-layer in the multi-layer flexible circuit board closest to the first surface. La présente demande divulgue une carte de circuit imprimé souple, un panneau d'affichage et son procédé de préparation, ainsi qu'un dispositif d'affichage. La carte de circuit imprimé souple comprend un substrat de circuit ; le substrat de circuit est une carte de circuit imprimé souple multicouche ; au moins deux couches de la carte de circuit imprimé souple multicouche