Display panel and display device with a thin film encapsulation layer

A display panel, comprising a plurality of pixel defining units, each of the plurality of pixel defining units has a pixel hole for arranging a sub-pixel, and a first guide groove section connecting to the pixel hole, and the first guide groove sections corresponding to two adjacent pixel defining units are connected to each other to form a first guide groove,

• the display panel further comprising a plurality of second guide grooves, each of which is separated from the pixel hole and communicates two adjacent first guide grooves,
• wherein at least two of the second guide grooves are provided in an array unit, and the at least two of the second guide grooves are mutually crossed and communicated;
• the array unit is a closed region enclosed by the pixel holes of at least three adjacent pixel defining units and the first guide grooves corresponding to the pixel holes,
• chamfers are formed at communication points of each second guide groove and each first guide groove, and
• chamfers are formed at mutual cross and communication points of every two crossed and communicated second guide grooves.