Patent attributes
A display unit includes a conductive portion 1. When it is assumed that there is an imaginary straight line m1, which extends in a direction perpendicular to a longitudinal direction of a dipole antenna 2, passes through a center of the dipole antenna 2 and is parallel to an antenna surface of the dipole antenna 2, the dipole antenna 2 is disposed on a lateral side of the display unit so that the imaginary straight line m1 is parallel to a display screen, is parallel to an upper side 1a or a lower side 1b of a main surface of the conductive portion and passes a lateral portion of the conductive portion 1. When the dipole antenna has a length LA in the longitudinal direction thereof, when the conductive portion has a thickness T, and when a radio wave for communication with the external device has a wavelength λ0 in the air, the formula of λ0≧LA≧T is established, a one side of the conductive portion has a greater length than the wavelength λ0, and a shortest distance d between each of peripheral portions of radiating conductors 2a and 2b and a peripheral portion of the conductive portion ranges from (LA/10) to 6LA.
