Abstract: The present application provides a display panel, a display device, and a preparation method for the display panel. The display panel includes: a substrate; a light-emitting unit including a first hole blocking layer; and a photoelectric sensing unit being configured to receive an optical signal and generate a corresponding electrical signal from the optical signal, the photoelectric sensing unit including a photoelectric conversion layer, a buffer layer being arranged on a side of the photoelectric conversion layer away from the substrate and a second hole blocking layer being arranged on a side of the buffer layer away from the photoelectric conversion layer; wherein the first hole blocking layer and the second hole blocking layer are made of the same material, the buffer layer has a first electrical conductivity, and the second hole blocking layer has a second electrical conductivity, the first electrical conductivity being greater than the second electrical conductivity.

Abstract: Provided are a method, apparatus and system for measuring total radiated power of an array antenna. The method includes: determining a Rayleigh resolution of the array antenna in an angle space, and setting a stepping grid spacing of sampling points according to the Rayleigh resolution; determining the sampling points according to the stepping grid spacing, measuring equivalent isotropic radiated power (EIRP) at positions of the sampling points and determining the TRP according to the EIRP. Compared with a traditional rest mode using an angle stepping grid ?grid and ?grid of 15°, this reduces measurement errors; and additionally, through a normalized wave vector space transformation, the number of sampling points is further reduced, and the measurement efficiency is improved.

Abstract: Provided are a method, apparatus and system for measuring total radiated power of an array antenna. The method includes: determining a Rayleigh resolution of the array antenna in an angle space, and setting a stepping grid spacing of sampling points according to the Rayleigh resolution; determining the sampling points according to the stepping grid spacing, measuring equivalent isotropic radiated power (EIRP) at positions of the sampling points and determining the TRP according to the EIRP. Compared with a traditional rest mode using an angle stepping grid ?grid and ?grid of 15°, this reduces measurement errors; and additionally, through a normalized wave vector space transformation, the number of sampling points is further reduced, and the measurement efficiency is improved.

Abstract: Provided are a method, apparatus and system for measuring total radiated power of an array antenna. The method includes: determining a Rayleigh resolution of the array antenna in an angle space, and setting a stepping grid spacing of sampling points according to the Rayleigh resolution; determining the sampling points according to the stepping grid spacing, measuring equivalent isotropic radiated power (EIRP) at positions of the sampling points, and determining the TRP according to the EIRP. Compared with a traditional test mode using an angle stepping grid ?grid and ?grid of 15°, this reduces measurement errors; and additionally, through a normalized wave vector space transformation, the number of sampling points is further reduced, and the measurement efficiency is improved.

Abstract: Provided are a method, apparatus and system for measuring total radiated power of an array antenna. The method includes: determining a Rayleigh resolution of the array antenna in an angle space, and setting a stepping grid spacing of sampling points according to the Rayleigh resolution; determining the sampling points according to the stepping grid spacing, measuring equivalent isotropic radiated power (EIRP) at positions of the sampling points, and determining the TRP according to the EIRP. Compared with a traditional test mode using an angle stepping grid ?grid and ?grid of 15°, this reduces measurement errors; and additionally, through a normalized wave vector space transformation, the number of sampling points is further reduced, and the measurement efficiency is improved.