Display apparatus including light emitting device and pixel driving circuit

A display apparatus including a light emitting device and a pixel driving circuit is disclosed. The pixel driving circuit provides a driving current corresponding to the data signal. The pixel driving circuit includes a driving thin film transistor and a switching thin film transistor. The switching thin film transistor includes a sampling thin film transistor electrically connected between a driving gate and a driving source of the driving thin film transistor. A sampling semiconductor pattern of the sampling thin film transistor is disposed between the sampling light shielding pattern and a sampling gate of the sampling thin film transistor. The sampling gate has a recess with respect to the sampling semiconductor pattern. A characteristic change of the sampling thin film transistor caused by light emitted by the light emitting device may be prevented. 公开了一种包括发光器件和像素驱动电路的显示设备。像素驱动电路提供对应于数据信号的驱动电流。像素驱动电路包括驱动薄膜晶体管和开关薄膜晶体管。开关薄膜晶体管包括电连接在驱动薄膜晶体管的驱动栅极和驱动源极之间的采样薄膜晶体管。采样薄膜晶体管的采样半导体图案设置在采样光屏蔽图案和采样薄膜晶体管的采样栅极之间。采样栅极相对