Flexible display panel and flexible display apparatus

A flexible display panel, comprising:

• a flexible substrate;
• a first buffer layer disposed on one side of the flexible substrate;
• a thin-film transistor layer disposed on a side of the first buffer layer away from the flexible substrate;
• a planarization layer disposed on a side of the thin-film transistor layer away from the flexible substrate;
• and
• an organic light-emitting layer disposed on a side of the planarization layer away from the flexible substrate,
• wherein:
• the flexible display panel includes at least one bending area,
• in the at least one bending area, at least one groove is formed in at least one of the first buffer layer and the thin-film transistor layer, and
• W
• ≥
• n
• 180
• °
• ⁢
• π
• ⁢
• ⁢
• R
• ,
• where W is a bottom width of the at least one groove, n is a maximum bending angle of the at least one bending area, 0°<n≤180°, and R is a bending radius of the at least one bending area,
• wherein the flexible display panel further includes at least one of a first curved line and a second curved line, wherein:
• a bottom of the at least one groove transitions to a side wall of the at least one groove through the first curved line, and
• the side wall of the at least one groove transitions to a non-recessed surface of a layer where the at least one groove is disposed through the second curved line.

A flexible display panel, comprising:

• a flexible substrate;
• a first buffer layer disposed on one side of the flexible substrate;
• a thin-film transistor layer disposed on a side of the first buffer layer away from the flexible substrate;
• a planarization layer disposed on a side of the thin-film transistor layer away from the flexible substrate;
• an organic light-emitting layer disposed on a side of the planarization layer away from the flexible substrate;
• and
• a display area and a non-display area surrounding the display area, wherein the flexible display panel includes at least one bending area, and at least one of the display area and the non-display area is configured with the at least one bending area,
• wherein:
• in the at least one bending area, at least one groove is formed in at least one of the first buffer layer and the thin-film transistor layer, and
• W
• ≥
• n
• 180
• °
• ⁢
• π
• ⁢
• ⁢
• R
• .
• where W is a bottom width of the at least one groove, n is a maximum bending angle of the at least one bending area, 0°<n≤180°, and R is a bending radius of the at least one bending area,
• wherein:
• the non-display area includes a wiring region and a binding region,
• the display area includes a plurality of signal lines,
• at least a portion of the plurality of signal lines extend from the display area to the binding region through the wiring region, and
• the at least one bending area is located in the wiring region.