A semiconductor structure is provided. Each transmitter has an input for receiving an enable signal assigned to it, and is adapted to generate or not to generate an optical information signal according to the status of the enable signal. When the vehicle stops due to the service brake being applied, the service brake is released and the parking brake is applied as a function of a release criterion. One embodiment of the non-silicon-containing acrylate component includes ethylene glycol diacrylate. A display terminal includes a first body, and a Hall sensor disposed in the first body, the Hall sensor including a magnetic field sensing surface configured to sense a magnetic field, in which the magnetic field sensing surface is disposed at a slope with respect to an front surface of the first body.