JP4606397B2 - Display device - Google Patents

Description

  The present invention relates to a display device such as a liquid crystal display device or a plasma display device.

A display device such as a liquid crystal television has a display surface on the front side, and a speaker is mounted on the lateral side or the lower side of a display unit having a substantially rectangular parallelepiped (see, for example, Patent Document 1). The speaker includes a low-frequency sound source and a medium / high-frequency sound source, and a holding case that holds the sound source side by side vertically or horizontally, and the holding case is attached to the display unit.
JP 2005-191787 A

  However, in a display device in which a speaker is mounted on the lateral side or the lower side of the display unit as in Patent Document 1, the entire length of the display unit is disposed on the outside of the display unit. The length of the speaker is added to the width of the speaker, or the length of the display is added to the length of the speaker, and the length from the display surface to the outer edge is relatively long. In addition, the design in the front view deteriorated, and improvement measures were demanded.

  The present invention has been made in view of such circumstances, and the main object is to provide a cabinet covering the display unit and the speaker, between the first sound emitting hole penetrating front and rear on the front side of the speaker, and between the display unit and the speaker. By providing the second sound emitting hole penetrating in the direction along the display surface, the length from the display surface to the speaker side outer edge can be shortened without reducing the opening area of the sound emitting hole, An object of the present invention is to provide a display device capable of improving the design in a front view.

  Another object is to provide a non-perforated wall portion for concealing the display portion side portion of the speaker in front of the first sound emitting hole, and a continuous wall connected to the first sound emitting hole portion and the non-perforated wall portion in the front-rear direction. A display device capable of reducing sound emission resistance in the cabinet of sound waves and obtaining good sound quality by adopting a configuration in which the cabinet has a part and the second sound emission hole is opened in the continuous wall part. It is to provide.

The display device according to the present invention includes a display unit having a display surface on the front side, a speaker that is attached to one side of the display unit and that emits sound waves forward, and a portion corresponding to the display surface is opened, and the display And a cabinet that covers the speaker, the cabinet includes a first sound emitting hole penetrating back and forth on the front side of the speaker, and a direction along the display surface between the display unit and the speaker. a second sound emission holes through, the the non-porous walls to conceal the display portion of the speaker from the front side the first sound emission hole, wherein a portion of the first sound emission hole non hole wall And a connecting wall portion connected to the front and back of the portion, and the second sound emitting hole is formed in the connecting wall portion.

In the present invention, it is possible to emit the middle / high sound wave radiated from the sound source for middle / high sound forward from the first sound emission hole, and the low sound radiated from the sound source for low sound. The sound wave can be emitted from the second sound emission hole in the direction along the display surface, and the inside of the non-hole wall can be used as a sound wave path, reducing the sound emission resistance in the sound wave cabinet. And good sound quality can be obtained. In addition, the first sound emission hole penetrates forward and backward on the front side of the speaker, whereas the second sound emission hole penetrates in the direction along the display surface between the display unit and the speaker. The speaker can be placed close to the display unit without reducing the opening area of the sound hole, and the length from the display surface to the speaker side outer edge can be shortened without changing the display surface area. The device can be miniaturized and the design in front view can be improved.

  As described above in detail, according to the present invention, the speaker can be arranged close to the display unit without reducing the opening area of the sound emission hole, so the length from the display surface to the outer edge of the speaker is shortened. The display device can be miniaturized. In addition, since the length from the display surface to the speaker side outer edge can be shortened without changing the area of the display surface, the design in the front view can be improved.

  Further, according to the present invention, since the inside of the non-hole wall portion can be used as a sound wave passage, sound emission resistance in the sound wave cabinet can be reduced, and good sound quality can be obtained.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. 1 is a front view showing the configuration of a display device according to the present invention, FIG. 2 is a longitudinal side view showing the configuration of the main part, FIG. 3 is a rear side perspective view showing the configuration of the main part, and FIG. 4 is the configuration of the main part. FIG. 5 is a rear perspective view in which a part of the cabinet is omitted.

  The illustrated display device has a display surface 1a for displaying a television image or the like on the front side, a display unit 1 having a substantially rectangular shape, and a speaker 2 mounted on both lower sides of the display unit 1 to emit sound waves forward. A thin liquid crystal television including a cabinet 3 covering the display unit 1 and the speaker 2 with a portion corresponding to the display surface 1a open.

  The display unit 1 includes a liquid crystal panel 11 having a display surface 1a on the front side, an optical sheet 12 disposed on the rear side of the panel 11, a backlight unit 13, and a television substrate such as a power supply substrate.

  The speaker 2 holds the sound source 21 for low sound, the sound source 22 for middle / high sound, and the sound sources 21 and 22 side by side, and the low sound wave generated by the sound source 21 and the medium / high sound generated by the sound source 22. And a holding case 23 having a sound wave radiating portion that radiates the sound waves forward. The holding case 23 is attached to the lower inner side of the cabinet 3.

  The cabinet 3 includes a front cabinet body 31 that covers the front peripheral edge of the display unit 1 and the front part of the speaker 2, and a rear cabinet main body 32 that covers the rear side from the peripheral part of the display unit 1 and the speaker 2. The cabinet body 32 is detachably connected to each other in a state in which the front end portion of the cabinet main body 32 is superposed on the inner side of the rear end portion of the front cabinet body 31.

  The front cabinet body 31 is a speaker support having a rectangular frame portion 31a covering the front peripheral edge of the display unit 1 and a lower portion of the frame portion 31a and having a plurality of first sound emitting holes 33 at both lateral ends. And a seat 31c to which the two speakers 2 and 2 are attached is provided at a position (both ends) corresponding to the first sound emitting hole 33 on the rear surface of the speaker support 31b. The holding cases 23 of the speakers 2 and 2 are attached to the respective seat portions 31c so as to be removable by screws.

  The speaker support portion 31b has a horizontally long rectangular shape, a sound emitting plate portion 31d in which first sound emitting holes 33 penetrating front and rear are formed at both ends in the horizontal direction, and a front side of the sound emitting plate portion 31d. The upper part of the speaker 2, in other words, the display part 1 side part of the speaker 2 is concealed, and the front and rear of the non-perforated wall part 31 e connected to the frame part 31 a, the lower edge of the non-perforated wall part 31 e and the upper edge of the sound emitting plate part 31 d And a plurality of first through holes vertically extending at both ends in the longitudinal direction of the continuous wall plate portion 31f facing the first sound emitting hole 33. Two sound emission holes 34 are opened.

  Inside the front cabinet body 31, between the non-perforated wall portion 31e and the frame portion 31a, there is provided a horizontal plate-like sound insulating wall 31g facing the upper front portion of the speaker 2 with a slight gap, and the non-perforated wall portion 31e. Is formed as a low-frequency sound wave passage 31i that communicates with the radiated sound chamber 31h between the front surface of the speaker 2 and the sound emitting plate portion 31d. A decorative plate 35 having a plurality of pores is attached to the front side of the sound emitting plate portion 31d.

  The rear cabinet main body 32 has a rectangular pan-like shape having a rear wall 32a and two side walls connected to the periphery of the rear wall 32a, a top wall and a bottom wall 32b.

  In the display device configured as described above, the speaker 2 attached to the seat portions 31c at both lateral ends of the speaker support portion 31b has a lower front surface excluding the upper portion as shown in FIG. The front surface of the upper part of the speaker 2 is located at a position facing the non-hole wall portion 31e, and the entire speaker 2 is arranged close to the display unit 1 side. . Accordingly, the length from the display surface 1a to the lower edge on the speaker 2 side can be shortened, and the display device can be downsized. Further, since the length from the display surface 1a to the lower edge on the speaker 2 side can be shortened, the design in a front view can be improved as shown in FIG.

  The middle / high sound wave radiated from the sound source 22 for the middle / high sound of the speaker 2 has directivity, so that it can be emitted forward from the first sound emission hole 33 in front of the speaker 2, and low sound Since the low-frequency sound wave radiated from the sound source 21 has no directivity, it can be emitted downward from the second sound emission hole 34 through the low-frequency sound wave passage 31i from the radiation sound chamber 31h in front of the speaker 2. . Thus, since the low-frequency sound wave is emitted from the second sound emission hole 34 separate from the first sound emission hole 33 to the front of the cabinet 3, the inside of the non-hole wall portion 31e can be used as a sound wave passage. The sound emission resistance in the cabinet 3 can be reduced, and good sound quality can be obtained.

  In the embodiment described above, the configuration in which the speaker 2 is mounted on the lower side of the display unit 1 has been described. However, the speaker 2 is mounted on both sides, one side, or the upper portion of the display unit 1. The structure may be sufficient as long as the structure is mounted on one side of the display unit 1 having a substantially rectangular shape. In this case, the speaker 2 portion has the same cross-sectional structure as shown in FIG. For example, when the speakers 2 are mounted on both sides of the display unit 1, the first sound emission holes 33 are opened in the front and rear directions, and the second sound emission holes 34 are opened in the horizontal direction, in other words, along the display surface 1 a. Opened in the direction.

  In the above-described embodiment, the display device in which the speakers 2 and 2 are mounted on both lower sides of the display unit 1 has been described. In addition, the speaker 2 includes a lower one side of the display unit 1, a lower central portion, and the like. It is good also as a structure provided in one place.

  In addition to the liquid crystal display device such as a liquid crystal television, the display device according to the present invention may be a display device such as a plasma display device or an EL display.

It is a front view which shows the structure of the display apparatus which concerns on this invention. It is a vertical side view which shows the structure of the principal part of the display apparatus which concerns on this invention. It is a back side perspective view which shows the structure of the principal part of the display apparatus which concerns on this invention. It is a front bottom side perspective view which shows the structure of the principal part of the display apparatus which concerns on this invention. It is the back side perspective view which abbreviate | omitted some cabinets of the display apparatus which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display part 1a Display surface 2 Speaker 3 Cabinet 33 1st sound emission hole 34 2nd sound emission hole 31e Non-hole wall part 31f Connection wall board part (connection wall part)

Claims (1)

A display unit having a display surface on the front side; a speaker that is mounted on one side of the display unit and that emits sound waves forward; and a cabinet that covers the display unit and the speaker, the portion corresponding to the display surface being opened The cabinet includes a first sound emitting hole penetrating front and rear on the front side of the speaker, and a second sound emitting hole penetrating in a direction along the display surface between the display unit and the speaker. A non-perforated wall portion for concealing the display portion side portion of the speaker in front of the first sound emitting hole, and a continuous wall connected to the first sound emitting hole portion and the non-perforated wall portion in the front and rear and a section, a display device, characterized in that are opened the second sound output holes in該連wall.

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