Panel (PyVista) : Jupyter notebook display problem

I am using PyVista on Jupyter notebook (in Anaconda in Windows) and using the Panel library but no result is displayed but the code ran fine.

import flopy as fl
import numpy as np
import matplotlib as mplt
import geopandas as gpd
import shapely
import pyproj
import fiona
import pyvista
import panel as pn
import vtk

from pyvista import demos
demos.plot_logo(background='White', jupyter_backend='panel')

The output is not displaying

Can you help me ?

Good evening.