An electronic apparatus includes an operation dial, a board disposed at an inner position from the operation dial, a rotary encoder disposed on a surface of the board on the side opposite to the operation dial side, and a connection member which engages with an encoder shaft of the rotary encoder and is connected with the operation dial. At least one of the filler material and the scattering fibers is formed of a birefringent material. Such functionalized carbon nanotubes are contacted with a substrate surface that has at least one portion containing a metal oxide. Then a transparent anode, an organic layer, a translucent electron-injecting cathode, a buffer layer and a transparent electrode are sequentially deposited on the metal reflective layer. Chemically assisted physical sputter etching using argon and limited or no oxygen may be used to etch the hard-to-etch materials with high selectivity to the carbon hardmask. A bearing is located in the second aperture and engages the sleeve and the main bearing to rotationally support the drive shaft.