Lg Electronics Inc.

Taehwan Jeon

Byungkil Choi

Janghwan Shim

Joontae Kim

Donghan Kang

Junhan Park

Jungmin Song

A motor-integrated acoustic output unit, comprising: a speaker frame of which one surface and the other surface are open; a diaphragm covering an opening part of the one surface of the speaker frame and being coupled to the speaker frame; a yoke covering the other surface of the speaker frame; a motor unit which is coupled to the yoke and which has at least a portion positioned inside the speaker frame; a voice coil positioned on the circumference of the motor unit, vibrating in the directions of the one surface and the other surface, and causing the diaphragm to vibrate; and an outer magnet positioned outside the voice coil, wherein the motor unit comprises: a motor frame coupled to the yoke; a motor coil fixed to the motor frame; an elastic part of which one side is coupled to the motor frame; and a motor magnet coupled to the other side of the elastic part, implements speaker, receiver, and motor functions with one module so as to reduce a mounting space, thereby reducing the number of components such that a manufacturing process is simplified and manufacturing costs can be reduced.

Electric device having sound output module

A mobile terminal includes: a case unit including a plurality of case parts; a waterproof member that waterproofs the plurality of case parts; an inner space formed by the plurality of case parts and the waterproof member; a sound output unit in the inner space; an electronic component in the inner space; at least one processor controlling the sound output unit; a resonance space in the inner space that resonates sound from the sound output unit; and a sound hole at one side of the case unit that outputs a first sound. A sound pressure level of a second sound output by vibration of the case unit due to the first sound is higher than that of the first sound in a low-frequency range, and when the case unit is on a mounting surface, a third sound is generated by the mounting surface due to vibration of the second sound.

Mobile terminal

There is disclosed a mobile terminal comprising a body; a display unit disposed on a front surface of the body and having elasticity; a vibration receiver attached to a rear surface of the display unit; a speaker having a higher output than the vibration receiver and configured to transmit sound to a distant location; and a controller configured to vibrate the display unit by driving the vibration receiver according to an audio signal.

A mobile terminal including a first body; a first audio output unit provided in the first body and configured to output sound; an audio conversion unit provided in the first body and configured to convert a sound source signal into an audio signal; a second body detachably coupled to the first body; and a second audio output unit provided in the second body and configured to output sound, wherein the audio conversion unit converts the sound source signal into a default audio signal and transmits the converted signal to the first audio output unit, in a state where the second body is detached from the first body, and the audio conversion unit converts the sound source signal into a first audio signal and transmits the converted first audio signal to the first audio output unit, when the second body is coupled to the first body.

Growing community of inventors

Seoul, South Korea

Taehwan Jeon