1results about "Deaf amplification systems" patented technology

A display device according to an embodiment of the present invention may comprise: a speaker; and a controller for transmitting a sound source to the speaker, receiving information including a plurality of hearing loss magnitudes of a user for a plurality of frequencies, respectively, comparing each of the plurality of hearing loss magnitudes with a first reference magnitude to obtain an inaudible frequency, the hearing loss magnitude of which is greater than or equal to the first reference magnitude, among the plurality of frequencies, and outputting, to the speaker, a compensation sound resource obtained by compensating the inaudible frequency among frequencies constituting the sound source.