TWI539834B - Audio output device and video output device using the same - Google Patents

Description

Sound source output device and video output device using the same

The present invention relates to a sound source output device and a video output device using the sound source output device, and more particularly to a sound source output device having a dual sound source and a video output device using the sound source output device.

For the rapid advancement of the multimedia society, most of them benefit from the rapid development of semiconductor components or display devices. In terms of display devices, cathode display tubes (or cathode tube, CRT) type display devices have always dominated the display market due to their excellent display quality and economy. However, the CRT type display device has a problem of excessive volume and excessive energy consumption. For high image quality, low power consumption, thin mass production, low voltage driving, small size, etc., the CRT type display device obviously cannot achieve this. Claim. In view of this, liquid crystal display (LCD) will have great advantages, and LCD has been widely used in various types of thin TVs, video phones, camcorders, notebook computers, and desktops. Monitors, tablets, and projection color TVs.

Taking a thin TV as an example, in order to respond to the design of a thin TV, the speaker of the TV is also bound to be thinner. However, once the volume of the speaker is reduced, It will also affect the sound quality of the speakers.

For example, the shape of the horn is adapted to the actual usable space, which may cause the horizontal axis of the horn to be different from the length of the longitudinal axis, causing uneven amplitude and distortion. Or, because the vibration area of the horn is small, the low frequency extension of the horn is insufficient, resulting in a problem that the sound range is narrow. In addition, the conventional thin-type television has a plurality of sets of different audio speakers at the same time, so as to achieve the effect of stereo sound to enhance the overall sound quality of the television. However, due to the limitation of the actual space, the sound directions of the speakers of these different audios of the thin television are often not the same, which makes the sound of the television have a sense of separation and fails to achieve the expected stereo sound.

The invention provides a sound source output device and a video output device using the sound source output device, thereby improving the sound quality of the audio output device.

The sound source output device disclosed in the present invention comprises a casing, a first speaker, a second speaker and a sound guide. The first speaker is a circular horn and is disposed in the housing, and the first speaker is oriented in a first direction. The second speaker is disposed on the housing and faces a second direction that is different from the first direction. The soundboard is a square plate and is located on the first speaker and is kept at a predetermined distance from the first speaker.

The audio and video output device disclosed in the present invention comprises a main body, a display screen and a sound source output device. The body has a first side and a second side opposite to each other. The display screen is on the first side. The sound source output device comprises a casing, a first speaker, a second speaker and a sound guide. The housing has a first surface and a third surface opposite to each other, and a second surface connected between the first surface and the third surface. case It is disposed on the main body, and the third surface faces the second side. The first speaker is a circular horn and is disposed on the first side of the housing, and the first speaker is oriented in a first direction. The second speaker is disposed on the second side of the housing and faces a second direction different from the first direction. The soundboard is a square plate and is located on the first speaker and is kept at a predetermined distance from the first speaker.

According to the sound source output device and the audio/video output device using the sound source output device, the first speaker member adopts a circular speaker to increase the low frequency of the first speaker member by having a large vibration area. The quality of the sound and the sound pressure. By using the soundboard as a square plate, it is advantageous to concentrate the sound waves of the first speaker to improve the quality of the sound source.

The features, implementations, and utilities of the present invention are described in detail below with reference to the drawings.

1‧‧‧Video output device

10‧‧‧Source output device

11‧‧‧Shell

111‧‧‧ first side

1111‧‧‧ Groove

1112‧‧‧ openings

112‧‧‧ second side

113‧‧‧ third side

114‧‧‧ Ears

12‧‧‧First speaker

13‧‧‧Guideboard

14‧‧‧Second speaker

15‧‧‧Locking members

151‧‧‧Perforation

20‧‧‧ Subject

21‧‧‧ first side

22‧‧‧ second side

30‧‧‧ Display screen

d ₁ ‧‧‧First direction

d ₂ ‧‧‧second direction

Fig. 1 is a perspective view showing the structure of a sound source output device according to an embodiment of the present invention.

Fig. 2 is an exploded partial view showing the structure of the sound source output device according to Fig. 1.

Fig. 3 is a side view showing the structure of the sound source output device according to Fig. 1.

Figure 4 is a block diagram showing the structure of an audio-visual output device according to an embodiment of the present invention.

Please refer to FIG. 1 to FIG. 3 , which is a diagram according to the present invention. Fig. 2 is a perspective view showing the structure of the sound source output device according to Fig. 1, and Fig. 3 is a side view showing the structure of the sound source output device according to Fig. 1.

The sound source output device 10 of the embodiment includes a casing 11, a first speaker 21, a second speaker 14, and a sound guide 13.

The housing 11 has a first surface 111 and a third surface 113 opposite to each other, and a second surface 112 connected between the first surface 111 and the third surface 113. The second surface 112 is substantially perpendicular to the first surface 111 and the third surface 113 , and the area of the first surface 111 is greater than the second surface 112 . Moreover, the recess 1111 is recessed inwardly from the first surface 111, and the recess 1111 further has an opening 1112 on the second surface 112.

The first speaker 21 is a circular horn, and the first speaker 12 is disposed in the recess 1111 of the first face 111. The first speaker 12 faces a first direction d ₁ , and the first direction d ₁ may be substantially in the same direction as the normal vector of the first face 111 . The direction in which the so-called first speaker 21 is directed may particularly refer to the direction in which the central axis of the first speaker 12 extends toward the outside of the housing 11. Since the first speaker member 12 is a circular horn, the horizontal axis length of the outer shape of the first speaker member 12 is the same as the length of the longitudinal axis, so that the sound emitted by the first speaker member 12 can have a relatively average amplitude. Without distortion. In addition, since the circular horn has a large vibration area, the low frequency extension and sound pressure of the first speaker 12 are relatively good as a full range frequency speaker of the sound source output device 10.

The second speaker 14 is disposed on the second face 112 of the housing 11 and the second speaker 14 faces a second direction d ₂ . The second direction d ₂ may be substantially in the same direction as the normal vector of the second face 112, such that the second direction d ₂ may be substantially orthogonal to the first direction d ₁ . The direction in which the so-called second speaker 14 is directed may particularly refer to the direction in which the central axis of the second speaker 14 extends toward the outside of the housing 11. The second speaker 14 can be a speaker of various shapes, and the volume of the first speaker 12 is larger than the volume of the second speaker 14, that is, the vibration area of the second speaker 14 is higher than that of the first speaker 12 Small, so that the second speaker 14 is used as a high frequency speaker of the sound source output device 10.

The sound guiding plate 13 is a square plate body, and the material of the sound guiding plate 13 can be a metal material, but not limited thereto. The sound guiding plate 13 covers the groove 1111 such that the sound guiding plate 13 is positioned above the first sounding member 12, and the sound guiding plate 13 is kept at a predetermined distance D from the first sounding member 12. The predetermined distance D needs to be greater than the maximum stroke of a speaker of the first speaker 12, and the maximum stroke of the speaker of the first speaker 12 refers to the maximum amplitude of the first speaker 12 when vibrated.

Also, when the sound guide plate 13 covers the recess 1111, the sound guide plate 13 does not close the opening 1112 of the recess 1111, so that the opening 1112 is exposed outside and interposed between the sound guide plate 13 and the casing 11. The opening 1112 and the second speaker 14 are oriented in the same direction (ie, the second direction d ₂ ).

When the first speaker 12 vibrates to emit a sound, the sound wave is bounced by the barrier of the sound guide plate 13 and is transmitted by the opening 1112. In other words, the sound guide plate 13 converts the sounding direction of the first speaker 21 from the initial first direction d ₁ to the second direction d ₂ , so that the final sounding direction of the first speaker 12 can be The sounding direction of the second speaker 14 is the same. Thereby, the sound source output device 10 can make a better stereo sound effect. In addition, since the sound guiding plate 13 is a square plate body, it is advantageous to concentrate the sound waves of the first speaker 21 for reflection to improve the sound source quality.

In addition, in the present embodiment, the end edge of the housing 11 of the sound source output device 10 may further have a plurality of ears 114, and a plurality of locking members 15 may be coupled to the ears 114. These locking members 15 can each have a perforation 151 for a fastener (e.g., a screw) to be inserted to facilitate attachment of the sound source output device 10 to various types of products. As for the practical application of the sound source output device 10 for the product, it will be introduced later.

Please refer to FIG. 4, which is a schematic structural diagram of a video output device according to an embodiment of the present invention.

The sound source output device 10 of the above embodiment can be applied to a video output device 1. The video output device 1 can be a thin display, but is not limited thereto.

The video output device 1 includes a main body 20, a display screen 30, and the above-described sound source output device 10. The body 20 has a first side 21 and a second side 22 opposite to each other. The display screen 30 is located on the first side 21. The housing 11 of the sound source output device 10 is disposed on the main body 20, and the third surface 113 of the housing 11 faces the second side 22. The opening 1112 and the second speaker 14 are oriented toward the second direction d ₂ , and the second direction d ₂ is substantially downward. The final sounding direction of the first speaker 12 (ie, the direction of the opening 1112) can be the same as the sounding direction of the second speaker 14, so that the video output device 1 can exhibit better stereo sound.

The sound source output device according to the above embodiment and using the sound source output The audio-visual output device of the device adopts a circular horn by the first speaker, and has a large vibration area to improve the quality and sound pressure of the low-frequency sound of the first speaker. By using the soundboard as a square plate, it is advantageous to concentrate the sound waves of the first speaker to improve the quality of the sound source. Moreover, the final sounding direction of the first speaker is the same as the sounding direction of the second speaker by the sound guiding plate to obtain a better stereo sound.

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.

10‧‧‧Source output device

11‧‧‧Shell

111‧‧‧ first side

1111‧‧‧ Groove

1112‧‧‧ openings

112‧‧‧ second side

113‧‧‧ third side

114‧‧‧ Ears

12‧‧‧First speaker

13‧‧‧Guideboard

14‧‧‧Second speaker

15‧‧‧Locking members

151‧‧‧Perforation

d ₁ ‧‧‧First direction

d ₂ ‧‧‧second direction

Claims (15)

An audio source output device comprising: a housing; a first speaker, a full audio speaker, disposed in the housing, the first speaker is oriented in a first direction; a second speaker, Provided in the housing, and facing a second direction different from the first direction, the volume of the first speaker is larger than the volume of the second speaker; and a sound guide plate is a square plate And located on the first speaker, and maintaining a predetermined distance from the first speaker; wherein the soundboard covers the first speaker, and the soundboard and the housing have An opening, the second speaker is located beside a short side of the opening, the opening facing the second direction. The sound source output device of claim 1, wherein the predetermined distance is greater than or equal to a maximum stroke of a speaker of the first speaker. The sound source output device of claim 1, wherein the first direction is substantially orthogonal to the second direction. The sound source output device of claim 1, wherein the housing has an adjacent first surface and a second surface, and has a recess from the first inner surface, the recess having the opening In the second side, the first speaker is located in the recess, the sound guide covers the recess, and the second speaker is located on the second surface. A sound source output device comprising: a first speaker; a first audio speaker, disposed in the housing, the first speaker is oriented in a first direction; a second speaker is disposed in the housing, and And facing a second direction different from the first direction, the volume of the first speaker is larger than the volume of the second speaker; and a sound guiding plate is located on the first speaker, and The first speaker is held at a predetermined distance; wherein the soundboard covers the first speaker, and the soundboard has an opening between the casing, and the second speaker is located at the opening Next to the short side, the opening faces the second direction. The sound source output device of claim 5, wherein the predetermined distance is greater than or equal to a maximum stroke of a speaker of the first speaker. The sound source output device of claim 5, wherein the first direction is substantially orthogonal to the second direction. The sound source output device of claim 5, wherein the housing has an adjacent first surface and a second surface, and has a recess from the first inner surface, the recess having the opening In the second side, the first speaker is located in the recess, the sound guide covers the recess, and the second speaker is located on the second surface. An audio source output device comprising: a housing; a first speaker member is a full audio speaker, and is disposed in the housing, the first speaker member is oriented in a first direction; a second speaker member is disposed on the housing, and the orientation is different from a second direction of the first direction, the volume of the first speaker is greater than the volume of the second speaker; and a sound guide plate located on the first speaker, and the first speaker Keeping a predetermined distance, the area of the sound guiding plate is larger than the area of the first sounding member; wherein the sound guiding plate covers the first sounding member, and an opening is formed between the sound guiding plate and the casing The second speaker is located beside the short side of the opening, the opening facing the second direction. The sound source output device of claim 9, wherein the predetermined distance is greater than or equal to a maximum stroke of a speaker of the first speaker. The sound source output device of claim 9, wherein the first direction is substantially orthogonal to the second direction. The sound source output device of claim 9, wherein the housing has an adjacent first surface and a second surface, and has a recess from the first inner surface, the recess having the opening In the second side, the first speaker is located in the recess, the sound guide covers the recess, and the second speaker is located on the second surface. An audio output device includes: a main body having a first side and a second side; a display screen on the first side; and an audio output device comprising: a housing having a first surface and a third surface opposite to each other, and a second surface connected between the first surface and the third surface, the housing is disposed on the main body, and the third surface Facing the second side; a first speaker member is a full audio speaker, and is disposed on the first side of the housing, the first speaker member faces a first direction; a second speaker member, Provided on the second side of the housing, and facing a second direction different from the first direction, the volume of the first speaker is greater than the volume of the second speaker; and a sound guide, Located on the first speaker, and maintaining a predetermined distance from the first speaker; wherein the first mask has a groove, the first speaker is located in the groove, and the soundboard covers The groove has an opening between the sound guiding plate and the casing, and the second speaker is located beside the short side of the opening, the opening facing the second direction. The video output device of claim 13, wherein the predetermined distance is greater than or equal to a maximum stroke of a speaker of the first speaker. The video output device of claim 13, wherein the volume of the first speaker is greater than the volume of the second speaker, the first direction being substantially orthogonal to the second direction.