Touch substrate and touch display device

A touch substrate, comprising:

• a base substrate;
• a plurality of first touch electrodes arranged along a first direction on the base substrate;
• and
• a plurality of second touch electrodes arranged along a second direction on the base substrate,
• wherein the touch substrate comprises a touch region and a notch region at an edge portion of the touch region in the second direction, the plurality of first touch electrodes comprise at least one first notch touch electrode adjacent to the notch region, the touch substrate further comprises a touch-driving connection line connected to the at least one first notch touch electrode, and the plurality of second touch electrodes comprise a plurality of second disconnection touch electrode disconnected at the notch region, each of the at least one second disconnection touch electrode comprises a first sub portion and a second sub portion respectively on two sides of the notch region in the first direction,
• the touch substrate further comprises a bridge line, the bridge line at least partially extends along an edge of the notch region close to the touch region and connects the first sub portion with the second sub portion, at least one touch-driving connection line extends along the edge of the notch region close to the touch region, and
• the touch substrate further comprises a shielding line, and an orthographic projection of at least a part of the shielding line on the base substrate is between an orthographic projection of the bridge line on the base substrate and an orthographic projection of the touch-driving connection line on the base substrate, is spaced apart from the orthographic projection of the bridge line on the base substrate and the orthographic projection of the touch-driving connection line on the base substrate, respectively,
• the bridge line comprises a bridge main portion and a first bent portion, a second bent portion and a first connection potion located at each of two ends of the bridge main portion;
• the bridge main portion, the first bent portion and the second bent portion extend along the edge of the notch region close to the touch region, an extending direction of the first connection portion intersects with an extending direction of the first bent portion or the second bent portion, two ends of the first connection portion are respectively connected with the first bent portion and the second bent portion, and the second bent portion and the bridge main portion belong to one continuous wire.