阅读说明：本技术 显示基板、显示装置 (Display substrate and display device ) 是由 刁永富 陈祯祐 于 2020-11-27 设计创作，主要内容包括：一种显示基板和显示装置,显示基板包括基底(50)和在基底(50)上阵列分布的多个子像素；子像素包括：沿第一方向(Y)延伸的数据线图形(DATA1,DATA2)；包括沿第一方向(Y)延伸的部分的电源信号线图形(VDD)；以及子像素驱动电路,子像素驱动电路包括：两个开关晶体管(T4,T5)、驱动晶体管(T3)和存储电容(Cst)；存储电容(Cst)的第一极板(Cst1)与驱动晶体管(T3)的栅极(203g)耦接,存储电容(Cst)的第二极板(Cst2)与电源信号线图形(VDD)耦接；两个开关晶体管(T4,T5)的第二极(D4,D5)均与驱动晶体管(T3)的第一极(S3)耦接,两个开关晶体管(T4,T5)中的至少一个开关晶体管(T4,T5)的第二极(D4,D5)在基底(50)上的正投影,与电源信号线图形(VDD)在基底(50)上的正投影至少部分重叠,且与存储电容(Cst)的第二极板(Cst2)在基底(50)上的正投影至少部分重叠。(A display substrate and a display device, the display substrate includes a base (50) and a plurality of sub-pixels arranged in an array on the base (50); the sub-pixel includes: a DATA line pattern (DATA1, DATA2) extending in a first direction (Y); a power supply signal line pattern (VDD) including a portion extending in a first direction (Y); and a sub-pixel driving circuit, the sub-pixel driving circuit including: two switching transistors (T4, T5), a driving transistor (T3), and a storage capacitor (Cst); a first plate (Cst1) of the storage capacitor (Cst) is coupled to the gate electrode (203g) of the driving transistor (T3), and a second plate (Cst2) of the storage capacitor (Cst) is coupled to the power supply signal line pattern (VDD); the second poles (D4, D5) of the two switching transistors (T4, T5) are both coupled to the first pole (S3) of the driving transistor (T3), an orthographic projection of the second pole (D4, D5) of at least one switching transistor (T4, T5) of the two switching transistors (T4, T5) on the substrate (50) at least partially overlaps with an orthographic projection of the power supply signal line pattern (VDD) on the substrate (50), and at least partially overlaps with an orthographic projection of the second plate (Cst2) of the storage capacitor (Cst) on the substrate (50).)