Audio output device and video/audio output device using the same

1. An audio output device, comprising:

a casing;

a first speaker component being a circular speaker, and disposed at the casing, and the first speaker component facing towards a first direction;

a second speaker component disposed at the casing, and facing towards a second direction, different from the first direction, wherein the volume of the first speaker component is greater than the volume of the second speaker component; and

a sound-guiding board being a square plate body, located above the first speaker component, and separated at a predetermined distance from the first speaker component;

wherein the sound-guiding board covers the first speaker component, an opening exists between the sound guiding board and the casing, the second speaker being located beside a shorter edge of the opening, and the opening faces towards the second direction.

2. The audio output device according to claim 1 , wherein the predetermined distance is greater than or equal to the maximum stroke of the first speaker component.

3. The audio output device according to claim 1 , wherein the first direction is substantially perpendicular to the second direction.

4. The audio output device according to claim 1 , wherein the casing has a first surface and a second surface, the first surface and the second surface are adjacent to each other, a recess is formed inward from the first surface and has an opening located at the second surface, the first speaker component is located inside the recess, the sound-guiding board covers the recess, and the second speaker component is located at the second surface.

5. A video/audio output device, comprising:

a main body having a first side and a second side opposite to each other;

a display screen located at the first side; and

an audio output device comprising:

a casing having a first surface, a second surface and a third surface, the first surface and the third surface being opposite to each other, the second surface being connected between the first surface and the third surface, the casing being disposed at the main body, and the third surface facing towards the second side;

a first speaker component being a circular speaker, and disposed at the first surface of the casing, and the first speaker component facing towards a first direction;

a second speaker component disposed at the second surface of the casing, and facing towards a second direction, different from the first direction, wherein the volume of the first speaker component is greater than the volume of the second speaker component; and

a sound-guiding board being a square plate body, located above the first speaker component, and separated at a predetermined distance from the first speaker component;

wherein the first surface has a recess, the first speaker component is located inside the recess, the sound-guiding board covers the recess, the recess has an opening located between the sound-guiding board and the casing, the second speaker being located beside a shorter edge of the opening, and the opening faces towards the second direction.

6. The video/audio output device according to claim 5 , wherein the predetermined distance is greater than or equal to the maximum stroke of the first speaker component.

7. The video/audio output device according to claim 5 , wherein the volume of the first speaker component is greater than the volume of the second speaker component, and the first direction is substantially perpendicular to the second direction.