Abstract: A display substrate includes a light emitting structure layer disposed on a base substrate, the light emitting structure layer includes a first electrode layer, a pixel definition layer, a light emitting functional layer and a second electrode layer; the first electrode layer includes multiple first electrodes; the pixel definition layer is disposed on a side of the first electrodes away from the base substrate, and is provided with multiple pixel openings and multiple flow channels; the pixel openings expose surfaces of the first electrodes away from the base substrate, each flow channel is located between two adjacent pixel openings in the first direction and communicates the two adjacent pixel openings in the first direction; the light emitting functional layer includes a first functional layer and a light emitting layer that are stacked; the first functional layer is disposed on surfaces of the first electrodes away from the base substrate.

Abstract: A display substrate includes a light emitting structure layer disposed on a base substrate, the light emitting structure layer includes a first electrode layer, a pixel definition layer, a light emitting functional layer and a second electrode layer; the first electrode layer includes multiple first electrodes; the pixel definition layer is disposed on a side of the first electrodes away from the base substrate, and is provided with multiple pixel openings and multiple flow channels; the pixel openings expose surfaces of the first electrodes away from the base substrate, each flow channel is located between two adjacent pixel openings in the first direction and communicates the two adjacent pixel openings in the first direction; the light emitting functional layer includes a first functional layer and a light emitting layer that are stacked; the first functional layer is disposed on surfaces of the first electrodes away from the base substrate.

Abstract: A THz UM-MIMO channel estimation method based on the DCNN comprises the steps: the hybrid spherical and planar-wave modeling (HSPM), by taking a sub-array in the antenna array as a unit, employing the PWM within the sub-array, and employing the SWM among the sub-arrays; estimating the channel parameters between the reference sub-arrays at Tx and Rx through a DCNN, including the angles of departure and arrival, the propagation distance and the path gain; deducing the channel parameters between the reference sub-array and other sub-arrays by utilizing the obtained channel parameters and the geometrical relationships among sub-arrays, and recovering the channel matrix; wherein accurate three-dimensional channel modeling is achieved by the HSPM, which possesses high modeling accuracy and low complexity.

Abstract: A THz UM-MIMO channel estimation method based on the DCNN comprises the steps: the hybrid spherical and planar-wave modeling (HSPM), by taking a sub-array in the antenna array as a unit, employing the PWM within the sub-array, and employing the SWM among the sub-arrays; estimating the channel parameters between the reference sub-arrays at Tx and Rx through a DCNN, including the angles of departure and arrival, the propagation distance and the path gain; deducing the channel parameters between the reference sub-array and other sub-arrays by utilizing the obtained channel parameters and the geometrical relationships among sub-arrays, and recovering the channel matrix; wherein accurate three-dimensional channel modeling is achieved by the HSPM, which possesses high modeling accuracy and low complexity.