Background technique
LED display is a kind of flat-panel monitor, is made of several LED modules, can be used to show text, image, video,The various information such as video signal.The development prospect of LED display is extremely wide, can be used, is also just ground indoor and outdoor at presentStudy carefully and is shown applied to the image of cinema.
LED display is generally assembled by multiple LED boxes, and Figure 1A and Figure 1B respectively illustrate the front of LED boxView and lateral plan.A and Figure 1B referring to Fig.1, LED box include shell 11, are equipped in shell 11 multiple in array mannerThe LED module of arrangement, each LED module include one or more LED illuminators 12 being welded on pcb board, the LED illuminator12 can be LED encapsulation, can also directly be LED chips.It further include having video processing circuit and power supply in shell 11Circuit etc..
Cinema hall needs to configure special sound system, it will usually speaker be arranged in each position of cinema hall, so as to seeCrowd can receive the sound from all directions, enjoy optimal viewing experience.The wherein Road sound from screen directionIt is extremely important, but when display screen uses LED display, LED display will form one and block up soundtight wall, if will provideThe speaker of Road sound is placed in the rear of LED display, then Road sound can not reach auditorium, influences viewing experience.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of LED box, it is intended to solve existing LED displayIt can not make the problem of Road sound is through through auditorium.
In order to solve the above technical problems, the utility model is realized in this way, a kind of LED box, the LED box hasOne shell, the side of the enclosure interior are equipped at least one LED module, have connection institute at least one described LED moduleState the sound penetrating hole inside and outside shell；The speaker component for sounding, the sound that the speaker component issues are additionally provided in the shellIt can be appeared by the sound penetrating hole to except the shell.
Further, the speaker component includes: audio power amplifying circuit, carries out function to received audio signalRate amplification；Phonation unit is connect with the audio power amplifying circuit, plays the audio signal after power amplification.
Further, be additionally provided in the shell: video processing circuits is connect with all LED modules, to the view receivedFrequency signal is handled, and vision signal is exported to LED module to show by treated.
Further, in the enclosure interior, except where the sound penetrating hole side and the speaker component speakSound-absorbing material is equipped with except face, for reducing the speaker component issue sound the enclosure interior reflection.
Further, the side where the sound penetrating hole described in the face of face of speaking of the speaker component.
Further, the speaker component is located at the middle position of the side opposite with the sound penetrating hole.
The utility model additionally provides a kind of LED display, the LED box including multiple splicings, wherein at least part LEDCabinet is the LED box with speaker；The LED box with speaker has the structure of LED box as described above.
Further, the LED display further include: audio voltage amplifying circuit, for the audio signal to input intoRow voltage amplification processing；Wherein, the audio power amplifying circuit parallel connection of all speaker components accesses the audio voltage amplification electricityRoad carries out power amplification processing to voltage amplification treated audio signal.
Further, the LED box with speaker is located at the middle position of entire display screen.
The utility model sound penetrating hole inside and outside for the speaker component of sounding and connection by the setting in LED box,So that the sound that speaker component issues can be appeared by the sound penetrating hole to except LED box, when being used for cinema hall display screen,Road sound can be made to go directly auditorium, guarantee the viewing experience of spectators.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementationExample, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explainThe utility model is not used to limit the utility model.
The utility model first embodiment provides a kind of LED box, the lateral plan of the LED box, front view, afterFace view is respectively as shown in Fig. 2A, Fig. 2 B, Fig. 2 C.Referring to Fig. 2A, Fig. 2 B, Fig. 2 C, which has a shell 21, shellSide inside 21 is equipped at least one LED module 22, and LED module 22 specifically can be direct weldering for showing image videoThe LED chip on pcb board is connect, is also possible to be welded on the LED package on pcb board, for example, by using Chip LED encapsulationLED package or the LED package of TOP LED encapsulation, wherein the pedestal of Chip LED encapsulation can select planar insulationSubstrate material selects the transparent encapsulation materials such as epoxy resin or silica gel to be packaged LED, and the pedestal of TOP LED encapsulation can be withFor the insulating materials that injection molding is formed, which has the pixel position of groove-like, selects the transparent enclosures material such as epoxy resin or silica gelLED chip is encapsulated on the pixel position of the groove-like by material.
There is sound penetrating hole 23 at least one LED module 22, sound penetrating hole 23 is inside and outside for being connected to shell 21, so thatSound inside shell 21 can reach except shell 21.
The speaker component 24 for sounding is additionally provided in shell 21, speaker component 24 is used to receive and image audio video synchronizationAudio signal simultaneously plays, the sound of sending through auditorium except being appeared by sound penetrating hole 23 to shell 21, as movie theaterThe Road sound of sound system.
Above content through this embodiment is it is found that the present embodiment is used for the speaker of sounding by being arranged in LED boxSound penetrating hole 23 inside and outside component 24 and connection, so that the sound that speaker component 24 issues can be appeared by sound penetrating hole 23 to LEDExcept cabinet, when being used for cinema hall display screen, Road sound can be made go directly auditorium, guarantee that the viewing of spectators is experienced.
As shown in Fig. 2A, Fig. 2 B, Fig. 2 C, speaker component 24 may further include audio power amplifying circuit 241 and hairSound unit 242, audio power amplifying circuit 241 are electrically connected with phonation unit 242, and audio power amplifying circuit 241 is used for instituteThe audio signal received carries out power amplification, and phonation unit 242 drives sounding by audio power amplifying circuit 241, is used forPlay the audio signal after power amplification.
In addition, video processing circuits 25 is also provided in shell 21, video processing circuits 25 and all LED modules 22Connection, handles the vision signal received, and vision signal is exported to LED module 22 to show by treatedShow.
Power circuit 26 is also provided in shell 21, power circuit 26 connects audio power amplifying circuit 241, view simultaneouslyThe other circuits of frequency processing circuit 25 and 21 inside of shell, are powered, sounding list for some circuit units for needing electricity consumptionMember 242 then directly can carry out work to take power from audio power amplifying circuit 241.
Further, sound-absorbing material 27 can also be set inside shell 21, and sound-absorbing material 27 is used as sound wave damping bodyIn reducing reflection of the sound of the sending of speaker component 24 inside shell 21, prevent from causing noise, the setting of sound-absorbing material 27 is removingExcept the side at 23 place of sound penetrating hole and the face of speaking of speaker component 24, the face of speaking of speaker component 24, such as shell are not blockedThe wall and trailing flank of 21 4 side of body are on the wall in addition to the face of speaking of speaker component 24.
Preferably, the side where the face face sound penetrating hole 23 of speaking of speaker component 24, so that speaker component 24 issuesSound can more directly reach sound penetrating hole 23.
Preferably, speaker component 24 is located at the middle position of the side opposite with sound penetrating hole 23.
The utility model second embodiment provides a kind of LED display, which includes the LED of multiple splicingsCabinet, as shown in figure 3, wherein having at least part cabinet is the LED box with speaker, remaining can be selected without soundThe LED box of case, wherein the LED box with speaker can select LED box described in first embodiment above.
Preferably, the LED box with speaker can be located to the middle position of entire display screen, from auditory effectIssue sound more like from the centre of entire LED screen.
It should be appreciated that can also be as needed by the LED box with speaker with other suitable layouts when specific implementationMode is distributed on entire LED display, and all LED boxes can also be designed to the structure with speaker.
Referring to Fig. 4, Fig. 5, LED display further includes audio voltage amplifying circuit 31, for the audio signal to input intoRow voltage amplification processing.Wherein, all LED boxes with speaker include speaker component, and the audio power of speaker component is putBig circuit 241 access audio voltage amplifying circuit 31 in parallel, to voltage amplification, treated that audio signal carries out at power amplificationReason.
It can be seen that the phonation unit 242 for working as a LED box, in each LED box from Fig. 4, Fig. 5, by thisAudio power amplifying circuit 241 in LED box drives sounding.Audio for entire LED display, in each LED boxThe input terminal of power amplification circuit 241 is in parallel, receive the same audio signal, which is originated from the same prime audioVoltage amplifier circuit 31, can thus reach multiple small-power speakers (phonation unit) simultaneously sounding, simulate one it is high-powerThe effect same of speaker sounding.
In conclusion the utility model in LED box by being arranged for inside and outside the speaker component of sounding and connectionSound penetrating hole so that speaker component issue sound can be appeared by the sound penetrating hole to except LED box, when be used for cinema hallWhen display screen, Road sound can be made to go directly auditorium, guarantee the viewing experience of spectators.In addition, when using the LED with speakerWhen box body splicing is at LED display, each speaker parallel connection can be accessed to the audio voltage amplifying circuit of the same prime, make to ownSpeaker receive same audio signal sounding simultaneously, simulate the sounding effect of high-power speaker.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at thisMade any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility modelProtection scope within.