To provide a display structure of electronic apparatus that can make an electronic apparatus visually recognized to be in a use in which a unit display is employed by simply lighting a light emitting body, while decreasing the breadthwise dimension of a display board.

When a pressure sensor is applied to an apparatus employing the unit of mmH2O, a light emitting element 35 is lighted to float an unit display 25 of mmH2O formed of a see-through character for the black print base optionally from the rear side. Consequently, a fact that the pressure sensor is applied to an apparatus employing the unit of mmH2O can be recognized visually. When the pressure sensor is applied to an apparatus employing the unit of kPa, a light emitting element 36 is lighted to float an unit display 26 of kPa formed of a see-through character for the back print base optically from the rear side. Consequently, a fact that he pressure sensor is applied to an apparatus employing the unit of kPa can be recognized visually.