Provided are a drive device and drive method for a vacuum fluorescent display that can suppress brightness variations in display images and improve display quality. A drive device for a vacuum fluorescent display is provided with a positive electrode unit in which a plurality of positive electrodes to which a phosphor is applied are disposed in a matrix shape and a negative electrode filament that discharges electrons toward the positive electrode unit. The device is provided with: a first magnetic field generating means that generates a first magnetic field perpendicular to the direction in which the positive electrode unit and the negative electrode filament face each other and that can periodically switch polarity; and a second magnetic field generating means that generates a second magnetic field that is perpendicular to the direction in which the positive electrode unit and the negative electrode filament face each other and crosses the first magnetic field and that can periodically switch polarity.

Provided is a magnetic-fluid display apparatus with a pickup function, the apparatus including a display container, a number of electromagnetic elements that control change of a magnetic field according to electrical signals, pickup devices, and a circuit board, where the display container is provided with a magnetic fluid, the magnetic fluid is located within a range of the magnetic field generated by the electromagnetic elements, and the electromagnetic elements and the pickup devices are both electrically connected with the circuit board. The magnetic-fluid display apparatus of the present invention has the pickup function, can directly control the change of the magnetic field according to surrounding sounds, can not only display according to playing of music, but also respond to the other sounds in an environment, and has a higher degree of freedom in use.

A magneto-inductive display panel includes: a substrate; a circuit carrier board disposed on the substrate; light-emitting units being disposed on the circuit carrier board and outputting display light; and magnetic sensors, which are disposed on the circuit carrier board and sense magnetic field characteristics of a magnet located around the magnetic sensors to generate magnetic signals, so that state information of the magnet can be determined according to the magnetic signals, thereby achieving a display touch function. This disclosure requires minimal additional steps in manufacturing integration, and enables touch operations without panel contact, while also resolving issues caused by moisture affecting touch performance.