Provided is an electroluminescent display device having a negligibly small voltage drop of a cathode, no external light reflection, and high contrast and luminance. The space is for arranging an impeller, rotatable about a rotation axis, and includes a spirally peripheral channel open to the space and running out into a pressure channel. The wearable member also includes a therapy delivery portion configured to position the energy module at a treatment site about the upper torso. The SRS is transmitted in accordance with a bandwidth from the reconfigured SRS bandwidth configuration. The doped top region is on the doped strips and extended on the first doped well between the doped strips. The processes use acidic ion exchange resins and include solvents.