CN107454512A - Panel vibration type sounding display device - Google Patents

Panel vibration type sounding display device Download PDF

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Publication number
CN107454512A
CN107454512A CN201710368161.XA CN201710368161A CN107454512A CN 107454512 A CN107454512 A CN 107454512A CN 201710368161 A CN201710368161 A CN 201710368161A CN 107454512 A CN107454512 A CN 107454512A
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CN
China
Prior art keywords
display device
sounding
bobbin
display panel
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710368161.XA
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Chinese (zh)
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CN107454512B (en
Inventor
崔荣洛
李成泰
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LG Display Co Ltd
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LG Display Co Ltd
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Filing date
Publication date
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Publication of CN107454512A publication Critical patent/CN107454512A/en
Application granted granted Critical
Publication of CN107454512B publication Critical patent/CN107454512B/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H04R9/027—Air gaps using a magnetic fluid
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Otolaryngology (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Optics & Photonics (AREA)

Abstract

Provide a kind of panel vibration type sounding display device.A kind of display device, including：It is configured to the display panel of display image；It is configured to cover the bottom of the display panel；By the sounding driver of the bottom head support, the sounding actuator arrangement is into the vibration display panel with sounding；And containment member, the containment member is between the peripheral part of the sounding driver and the outer surface of the bottom.

Description

Panel vibration type sounding display device
Technical field
Present disclosure is related to a kind of display device, more particularly to a kind of by vibrating display panel come the display dress of sounding Put.
Background technology
With various portable electron devices, the development of such as communication terminal and notebook computer, for that can apply Gradually increase in the demand of its panel display apparatus.Panel display apparatus includes liquid crystal display (LCD) device, electroluminescent shows Showing device, light emitting diode (LED) display device and Organic Light Emitting Diode (OLED) display device.
Among these display devices, liquid crystal display (LCD) device includes：Array base with thin film transistor (TFT) array Plate；Upper substrate with colour filter and/or black matrix etc.；And the liquid crystal material layer of formation between them.According to being applied to The state of orientation of electric field controls liquid crystal layer between two electrodes of pixel region, the transmissivity for thus adjusting light show figure Picture.
In the display panel of this liquid crystal display device, effective coverage (AA) and inactive area (NA) are defined, effectively Region (AA) is configured to provide the user with image, and inactive area (NA) is the outer peripheral areas of effective coverage.Generally by attached each other First substrate and second substrate are connect to manufacture display panel, first substrate is to be formed with thin film transistor (TFT) to define pixel The array base palte in region, second substrate are the upper substrates formed with black matrix and/or color-filter layer thereon.Thereon formed with film The array base palte or first substrate of transistor include a plurality of gate line extended in a first direction and vertical with first direction The a plurality of data lines that upwardly extends of second party.A pixel region is defined by every gate line and per data line.One It can divide formed with one or more thin film transistor (TFT)s, the gate electrode and source electrode of each thin film transistor (TFT) in individual pixel region Gate line and data wire are not connected to it.
Among these display devices, liquid crystal display device does not have self-emission device, thus needs single light source.Cause This, liquid crystal display device includes the back light unit of the light source with such as LED etc, and back light unit is arranged in liquid crystal display device Rear surface and towards the preceding surface irradiation light of its liquid crystal panel, be achieved in recognizable image.
Recently, Organic Light Emitting Diode (OLED) display device to be aroused attention as display device is sent out by using itself Light, the i.e. OLED of " self-luminous " and with fast response time, high-luminous-efficiency, high brightness and the advantages of wide viewing angle.In OLED In display device, including the sub-pixel arrangements of Organic Light Emitting Diode control into matrix form, and according to the gray level of data The brightness of the selected sub-pixel of scanned signal.In addition, the OLED display as light-emitting component consumes a small amount of power simultaneously And there is high response speed, high-luminous-efficiency, high brightness and wide viewing angle.
Meanwhile including the set (set device) of this display device or final products can for example wrap as described above Include TV (TV), computer display or billboard.This display device or set may include such as loudspeaker etc Voice output, for producing and exporting the image-related sound with display.
As a rule, the display of the device of such as liquid crystal display device or organic LED display device etc is manufactured Partial company only manufactures display panel or display device, and another company manufacture loudspeaker and by loudspeaker and the display of manufacture Part assembles, to complete to be capable of the set of output image and sound.Also can reversely be assembled, but reversely assembling is still Carried out with two parts and typically in different production equipments.
Fig. 1 is the plan for the loudspeaker that the display device of correlation technique includes.
As shown in fig. 1, the display device 1 of correlation technique or set include being arranged on the rear portion of its display panel or Loudspeaker 2 on bottom.In the structure shown here, sound is not seen directly towards from the front side of display device 1 as caused by loudspeaker 2 See that the beholder of image propagates, but towards after the display panel in addition to the front portion of the display panel of display image thereon Portion, bottom or edge are propagated.Therefore, the unmatched directionality of sound can interfere with the input sense of beholder.In addition, when from raising one's voice Sound caused by device 2 towards display panel rear portion, bottom or edge propagate when, due to by wall, floor or positioned at display surface The interference of the sound of the other surfaces of plate rear or lower section reflection, sounds quality degradations.
In addition, sound caused by the loudspeaker that the display device of correlation technique includes is not towards the viewing of display device Person orients, thus may undergo diffraction, and this further deteriorates sound positioning (localization).Moreover, forming such as During TV etc set, loudspeaker may occupy undesirable big quantity space, and this design and space to set is set Put and cause limitation.For example, in the mobile device, loudspeaker takes up space, this force thickness and/or frame region have it is larger Size.
Therefore, it is increasingly required a kind of quality that can be improved from the sound of display device output and reduces beholder The technology that is hindered of input sense.According to this demand, the display panel by directly vibrating display device is recently developed Carry out the technology of sounding.
This panel vibration type sound-producing device can have wherein sounding driver to be fixedly inserted into be formed in bottom or similar The construction in supported hole in thing (it is the posterior support structure of display device).In this case, caused sound is via shape Into the supported hole leakage in bottom, this can deteriorate phonation characteristics, and the sound revealed can be from rear wall reflection so that reflection Sound is output to the front side residing for beholder, and this can cause sound quality to be deteriorated due to interference of sound.
The content of the invention
Therefore, present disclosure is related to a kind of substantially overcome one caused by the limitation of correlation technique and shortcoming The panel vibration type sounding display device of individual or multiple problems.
The one side of present disclosure is to provide a kind of display panel that display device can be formed by vibrating to send out The panel vibration type sounding display device of sound.
The other side of present disclosure, which is to provide, a kind of can make display device have the sounding performance improved Reduce the display device of the thickness of display device simultaneously.
The other side of present disclosure is to provide a kind of sound leakage that can reduce via supported hole, enabling Improve the display device of sound output characteristics.
The other side of present disclosure, which is to provide one kind, to be reduced while sound leakage is reduced when sealing structure Part contacted with bottom caused by noise display device.
Attendant advantages and feature will be listed in the following description, and a part for these advantages and features is according to the description It will be apparent or can be understood by the implementation of inventive concept provided herein.By specification or derivatives thereof, These features and aspect of present inventive concept can be realized and obtained to the structure specifically noted in claims and accompanying drawing.
In order to realize these and other aspects of present inventive concept, as embodied and be broadly described herein, one kind display Device, it may include：It is configured to the display panel of display image；It is configured to cover the bottom of the display panel；By the bottom The sounding driver of support, the sounding actuator arrangement is into the vibration display panel with sounding；And containment member, it is described close Component is sealed between the peripheral part of the sounding driver and the outer surface of the bottom.
A kind of in addition, display device, it may include：It is configured to the display panel of display image；It is configured to cover the display The bottom of panel；There is end with by the sounding driver of the bottom head support, the sounding driver, the end is configured to The display panel is vibrated with sounding.
According to subsequent accompanying drawing and detailed description, other systems, method, feature and advantage are for ordinary skill people It will be for member or will become obvious.All these extra systems, method, feature and advantage are intended to be included in specification In, included in scope of the present disclosure interior, and protected by following claims.Any aspect in the part should not It is construed to limitations on claims.Further aspect and advantage are discussed with reference to the embodiment of disclosure.Should Understand, present disclosure foregoing general description and following detailed description are all exemplary and explanatory, it is intended to right Claimed disclosure provides further explanation.
Brief description of the drawings
The accompanying drawing for being further understood to present disclosure offer and being incorporated herein forming the application part illustrates this The embodiment of disclosure, and for explaining various principles together with specification.
Fig. 1 is the plan for the loudspeaker that the display device of correlation technique includes.
Fig. 2A and 2B is the diagram for the display device including panel vibration type sound-producing device that can be applied to embodiment.Figure 2A is plan.Fig. 2 B be along I-I ' interception Fig. 2A profile.
Fig. 3 A and 3B are each profiles available for two kinds of sounding drivers of embodiment.
Fig. 4 A and 4B illustrate the state for carrying out sounding available for the sounding driver vibration display panel of embodiment.
Fig. 5 A and 5B are the various forms of diagrams that sounding driver is bonded to bottom, and bottom can be display device Supporting construction.
Fig. 6 A are the perspective views of the sounding driver with extension, and extension is formed to fix sounding driver To bottom.
Fig. 6 B are to illustrate the backsight that wherein sounding driver is fixedly inserted into the state to be formed in the supported hole in bottom Figure, bottom is display device supporting construction.
Fig. 7 A and 7B are that there is illustrated hair along the profile of the line II-II ' in Fig. 6 B and line III-III ' interceptions respectively Gap S between supported hole in the side surface and bottom of sound driver and the sound leakage phenomenon via gap S.
Fig. 8 be diagram due to the leakage sound in Fig. 7 B from rear wall reflection and be forwardly directed to and it is caused reflection sound with And the thus diagram of caused sound property degradation phenomena.
Fig. 9 A are cuing open according to the display device for including sounding driver and containment member of present disclosure embodiment Face figure.
Fig. 9 B are the perspective views of the sounding driver with peripheral part, and peripheral part uses moulded closure formation.
Figure 10 A and 10B are diagram of the diagram for the detailed configuration of the containment member of present disclosure embodiment.
Figure 11 A are cuing open according to the display device for including sounding driver and containment member of present disclosure embodiment Face figure.
Figure 11 B are the perspective views of sounding driver of the diagram with peripheral part, and peripheral part is by by extending driver Extension that lower panel (or conjugation part) is formed and formed.
Figure 12 A to 12C illustrate several examples of sound proof part, and sound proof part is formed between display panel and intermediate stand, To form the space for transfer voice between the display panel and bottom as oscillating plate, frame is the support of display panel One of structure.
Figure 13 is illustrated when using the containment member according to present disclosure embodiment, the figure of sound output characteristics Table.
In whole accompanying drawing and detailed description, unless mention was made above to the contrary, otherwise identical accompanying drawing reference marker should be understood To refer to identical key element, feature and structure.For the sake of clear, diagram and convenience, the relative of these key elements may be exaggerated Size and drawing.
Embodiment
Some embodiments of present disclosure are reference will now be made in detail to now, and these embodiments some are illustrated in accompanying drawing Example.In the following description, when it is determined that the known function related to this paper or the detailed description of construction can unnecessarily make this When inventive concept is smudgy, its detailed description will be omitted.Described processing step and/or the process of operation are only examples； However, step and/or the order of operation are not limited to order listed here, the step of except that must occur in a specific order and/ Or outside operation, it can change as known in the art.Similar reference marker refers to similar key element.Only be for It is convenient and have chosen the title of each key element used in following explanation to write the application, thus it may be with actual production The title used in product is different.
In the description of embodiment, when a structure be described as being located at another structure " above " or " it is lower or under During side ", the description should be construed to include situation that these structures are in contact with each other and between them the 3rd structure of setting Situation.
Term " display device " used herein is referred not only to such as including the driving list for driving display panel The display dress of display panel (or display module), Liquid Crystal Module (LCM) and Organic Light Emitting Diode (OLED) module of member etc Put, but also refer to the unit electronic installation or set as the final products that may include LCM, OLED module etc., such as pen Remember this computer, TV, computer monitor, device display (for example, in automotive displays or other kinds of vehicle display Display device), or the electronic apparatus of such as smart phone or electronics pad or the like.That is in this application, art Language " display device " is used as such as LCM and OLED module etc display device and has display to fill as wherein application The application product or so-called " set " of final consumption device put.
However, in some cases, by the LCM including display panel and its driver element and " the display dress of OLED module Put " distinguished with " set " or " unit equipment ".For example, the implication of " display device " may include liquid crystal display panel Or Organic Light Emitting Diode (OLED) display panel and as driving the source electrode printed circuit board (PCB) of its controller (LCD) (PCB), set or unit equipment can further comprise that the unit PCB as generator set controller, unit PCB are electrically connected to source Pole PCB, to control whole set or whole unit equipment.
The display panel used in the embodiment of present disclosure may include any kind of display panel, such as liquid crystal (LCD) panel, Organic Light Emitting Diode (OLED) display panel etc. are shown, it is not limited to can be due to direct by sounding driver Vibration and caused vibration produces the given display panel technology of sound wave or audio output.
When the display panel is a liquid crystal display panel, display panel may include：By a plurality of gate line, a plurality of data lines and its The pixel that intersection region is defined；Array base palte including thin film transistor (TFT), thin film transistor (TFT), which corresponds to, to be used to adjust each pixel The switch element of the light transmission degree at place；Include the upper substrate of colour filter and/or black matrix etc.；And formed array base palte with Liquid crystal material layer between upper substrate.
In addition, when display panel is Organic Light Emitting Diode (OLED) display panel, can by including components described below come Form display panel：The pixel defined by a plurality of gate line, a plurality of data lines and its intersection region；Battle array including thin film transistor (TFT) Row substrate, thin film transistor (TFT) are to be used to apply alive element to each pixel selection；It is organic on array base palte Light emitting diode (OLED) layer；And it is arranged on array base palte to cover package substrate of organic LED layers etc..Envelope Fill substrate can protective film transistor, Organic Light Emitting Diode layer etc. from external impact, and can prevent moisture and/or oxygen from oozing Thoroughly into Organic Light Emitting Diode layer.Oled layer on array base palte may include the inorganic hair that can improve output image quality Photosphere, such as quantum dot light emitting layer, nano-sized materials layer etc..In the display device of embodiment according to present disclosure The display panel used does not limit in shape, size, type etc..
In the case of any display type, display panel can further comprise metallic plate such as attached thereto etc Backing (backing).It may also comprise other structures.The use that the display panel with driver may be implemented in vehicle in the application Family interface module, such as realize control board region in the car.For example, this display panel is configurable on two front occupants Between seat so that internal communication of the caused sound towards vehicle due to the vibration of display panel.In this way, when with only in car When there is loudspeaker to compare at inner side in, it is possible to increase the audio experience in vehicle.
In the situation of liquid crystal display panel, indirect light source type backlight should be set, be stacked with indirect light source type backlight Multilayer and it is provided with single light source.On the other hand, because the organic illuminating element of OLED display panel corresponds to self-luminous Element, thus single light source is not needed, and because several layers of such as polarization layer (POL), glassy layer and encapsulated layer etc It is in turn laminated in a panel, so even if directly vibrating organic illuminating element by sounding driver, also almost to organic hair The characteristics of luminescence of photosphere does not influence so that pattern distortion will not occur.It is not necessary, however, to using light-emitting display panel, Such as organic LED display panel or inorganic light-emitting display panel.Meanwhile because according to present disclosure embodiment Display device in the display panel that uses there is general structure, so the detailed description of display panel will be omitted.
Fig. 2A and 2B is the diagram for the display device including panel vibration type sound-producing device that can be applied to embodiment.Figure 2A is plan.Fig. 2 B be along I-I ' interception Fig. 2A profile.
As shown in Figure 2, it can be applied to the display panel that the display device of embodiment may include to be configured to display image 100 and it is configured to contact and vibrate with a surface of display panel the sounding driver of display panel thus sounding 200。
It is described in greater below referring for example to Fig. 4 A and 4B example, sounding driver 200 may include magnet, be used for Support plate, the center pole (center pole) protruded from the central area between plate and the bobbin (bobbin) of magnet, line Axle surrounds the periphery of center pole and is wound with coil, and coil can be applied in the electric current for sounding.Line the tip of the axis can be with showing Show the surface contact of panel.
In addition, as shown in Fig. 2 B examples, after display device may include that supporting construction, supporting construction support display panel It is at least one in surface and side surface, and lower panel of sounding driver or the like can be fixed to supporting construction.Support Structure may include the bottom 300 being arranged on the rear surface of display panel 100.Supporting construction can further comprise intermediate stand (middle cabinet) 500, intermediate stand 500 are surrounding the side surface of display panel 100 and are accommodating and support display surface Bottom 300 is bonded to while one lateral edges of plate 100.Supporting construction can be bottom, such as bottom 300, and can wrap Include other structures.Can be that the supporting construction of bottom may include extra part, it may include some, and need not can cover The whole rear of lid display panel.Supporting construction may include other elements (almost as actual product) directly or indirectly to prop up Support driver.
The bottom 300 for forming supporting construction can be the metal or modeling by the whole rear surface extension in display device Expect the tabular component formed.Bottom 300 as used herein is not limited to term " bottom ", but is referred to alternatively as other terms, such as Bottom plate, bonnet, base frame, metal frame, metal seat, chassis, m- supports (m-chassis) etc..Term " bottom " should be understood to Including for support display panel and be arranged on the form of ownership on the rear base portion of display device framework or platy structure it is general Read.Supporting construction can be bottom, such as bottom 300, and may include other structures.Can be that the supporting construction of bottom can wrap Include extra part, it may include some, and can need not cover the whole rear of display panel.Supporting construction may include Other elements (almost as actual product) are directly or indirectly to support driver.
In addition, sound proof part (baffle part) 400, sound proof part can be further comprised according to the display device of embodiment 400 are arranged between bottom 300 or intermediate stand 500 and display panel 100 as supporting construction, to form the air gap sky Between 600 (A/G), air gap space 600 (A/G) is the space for sound wave caused by transmitting.That is by between air Display panel 100 is airtightly bonded to bottom 300 by the edge in gap space 600 (A/G), and air gap space 600 can be by boundary It is the region sealed in four sides to be set to, and the air gap space of this sealing can be described as " sound insulation " structure.
Sound proof part 400 may include one of the following or the two：Bond component 412, bond component 412 can be located at bottom 300 or The edge of intermediate stand 500 is to be bound to the lower surface of display panel；With sealing 414, sealing 414, which is located at, bonds component To further provide for air gap space 600 (A/G) sealing characteristics outside 412.In one example, bonding component 412 can To be two-sided tape.Such as following reference picture 12A to 12C in greater detail, the height of sealing 414, which can be more than, bonds component 412 height.
Fig. 3 A and 3B are each profiles available for two kinds of sounding drivers of embodiment.
The sounding driver 200 used in embodiment may include：Magnet 220 as permanent magnet, it is configured to support magnetic The plate 210 and 210 ' of iron 220, the center pole 230 protruded from the central area of plate 210, the bobbin 250 for surrounding center pole 230, with And it is wrapped on the periphery of bobbin 250 and is applied in the coil 260 of the electric current for sounding.The sounding used in embodiment swashs Encouraging device 200 for example can be with wherein magnet is arranged on the first structure of coil outer or wherein magnet is arranged on coil inside Second of structure.
Fig. 3 A illustrate the first structure that wherein magnet is arranged on coil outer.The first structure can be described as " dynamic " type Or " outside " magnet type.In the sounding driver according to the first structure, lower panel 210 can be fixed to be formed in bottom 300 In supported hole 310.Can be that the magnet 220 of annular permanent magnet can surround the outside setting of lower panel 210.
Upper board 210 ' may be provided at the top of magnet 220.Be formed as to set from the prominent external frame 240 of upper board 210 ' Put on the periphery of upper board 210 '.
Center pole 230 can protrude from the central area of lower panel 210.Bobbin 250 can surround center pole 230.Coil 260 can The bottom of bobbin 250 is wound, and can be applied to coil 260 for the electric current of sounding.Can be in the part on the top of bobbin 250 Damper 270 is set between external frame 240.
Lower panel 210 and upper board 210 ', which can be configured to, is fixed to sounding driver 200 while magnet 220 are supported Bottom 300.As shown in Fig. 3 A examples, lower panel 210 may be configured as circle, and annular magnet 220 can be located at lower panel 210 On, and upper board 210 ' can be located on magnet 220.
In addition, because lower panel 210 and upper board 210 ' are engageable to bottom 300, can be fixedly supported under being located at Magnet 220 between portion's plate 210 and upper board 210 '.Plate 210 and 210 ' can be by magnetic material, such as iron (Fe) formation.Plate 210 Term " plate " is not limited to 210 ', but can be by other terms, such as " conjugation part " (yoke) is represented.Center pole 230 is with Portion's plate 210 may be integrally formed.
Bobbin 250 can be the loop configuration for example formed by paper, aluminium flake or the like.Coil 260 can be wrapped in bobbin The specific region of 250 bottom.Bobbin 250 can be collectively referred to as " sound " circle with coil 260.
When electric current applies to coil 260, magnetic field is produced around coil 260.It is because outer in the presence of being formed by magnet 220 Portion magnetic field, so whole bobbin 250 moves up according to Fleming's right-hand rule while being guided by center pole 230.Because The end of bobbin 250 can contact with the rear surface of display panel 100, so according to whether applying the state of electric current, display panel 100 can be vibrated, and because vibration can produce sound wave.As magnet 220, such as sintered magnet (sintered can be used Magnet), such as barium ferrite or the like, as its material, iron oxide (F can be used2O3), barium carbonate (BaCO3), have The strontium ferrite of improved magnetic component, aluminium (Al), nickel (Ni) and cobalt (Co) alloy casting magnet (casting magnet) or Analog, but material not limited to this.
Meanwhile damper 270 may be provided between the part on the top of bobbin 250 and external frame 240.Damper 270 can be set to crepe structure, with according to bobbin 250 vertically move contraction and loosen, with adjust bobbin 250 it is vertical (on Under) vibration.That is because damper 270 is connectable to each of bobbin 250 and external frame 240, bobbin 250 Vertical vibration be damped the recovery power restriction of device 270.When bobbin 250 is vibrated to certain height or higher upwards, or downwards Be vibrated to certain height or it is lower when, due to the restoring force of damper 270, bobbin 250 can return to its initial position.Damper 270 can be by other terms, such as " edge " (edge) is represented.
Fig. 3 B illustrate second of structure that wherein magnet is arranged on coil inside.Second of structure can be described as micro-type or " inside " magnet type.
In the sounding driver according to second of structure, lower panel 210 can be fixed to the support to be formed in bottom 300 Hole 310.Magnet 220 may be provided in the central area of lower panel 210.Center pole 230 is formed as extending to the upper of magnet 220 Portion.Upper board 210 ' can protrude from the periphery of lower panel 210.External frame 240 may be provided on the periphery of upper board 201 '.
Bobbin 250 can surround the periphery of magnet 220 and center pole 230.Coil 260 can wind the periphery of bobbin 250.This Outside, damper 270 may be provided between external frame 240 and bobbin 250.
Compared with the first sounding driver that wherein magnet is arranged on outside, second of sounding driver is characterised by, Less leak flux can be produced, and overall dimensions can be made smaller.However, in second of sounding driver input compared with High current can cause magnetic flux to reduce phenomenon.In addition, second of sounding driver is more difficult to manufacture.
In embodiments, both the first sounding driver and second of sounding driver can be used.For ease of retouching State, the first sounding driver will be described in following example.
In addition, the kind shown in Fig. 3 A and 3B is not limited to according to the sounding driver used in the display device of embodiment Class.The sounding driver of any other species can be used, as long as sounding driver can vibrate display according to the application of electric current Panel is with sounding.Vibration for example can be in the vertical direction.
Fig. 4 A and 4B illustrate the state for carrying out sounding available for the sounding driver vibration display panel of embodiment.
Reference picture 4A, in wherein the state of electric current is applied, the center pole 230 for being connected to the lower surface of magnet 220 can be into For N poles, S poles can be turned into by being connected to the upper board 210 ' of the upper surface of magnet 220 so that can be in center pole 230 and upper board External magnetic field is formed between 210 '.In this case, when the electric current for sounding applies to coil 260, around coil 260 The magnetic field applied is produced, due to the magnetic field and external magnetic field of application, produces the power for moving up bobbin 250.
Therefore, as shown in Fig. 4 A examples, bobbin 250 can move up, and the display contacted with the end of bobbin 250 Panel 100 is vibrated (see Fig. 4 A direction of arrow) upwards.When the application of electric current stops or applied the electric current on opposite direction When, as shown in Fig. 4 B examples, the power for moving down bobbin 250 is produced according to similar principle.As a result, display panel 100 to Lower vibration is (see Fig. 4 B direction of arrow).In this way, display panel can be according to application to the sense of current of coil and the amplitude of electric current And vibrate up and down, sound wave can be produced by the vibration.
Fig. 5 A and 5B are the various forms of diagrams that sounding driver is bonded to bottom, and bottom can be display device Supporting construction.
Display device applied to embodiment directly vibrates display panel using wherein sounding driver 200 and thus sent out The principle of sound.Consequently, because sounding driver should vibrate display panel in combination, institute by mobile bobbin or voice coil loudspeaker voice coil Bottom should be fixed to the main body of sounding driver, bottom is the posterior support structure of display device.
Fig. 5 A and 5B illustrate the various methods that sounding driver is fixed to bottom.Fig. 5 A are illustrated sounding driver It is attached directly to the method for the inner surface of bottom.Fig. 5 B illustrate in bottom formed supported hole and by sounding driver regularly The method inserted in supported hole.
Fig. 5 A, which illustrate to utilize in the case where not changing the structure of bottom 300, bonds component 290 by sounding driver 200 Rear surface be fixedly coupled to bottom 300 inner surface method.Meanwhile Fig. 5 B are illustrated and support are formed in bottom 300 A part for the side surface of sounding driver 200 is simultaneously fixedly inserted into the method in supported hole 310 by hole 310.
In Fig. 5 A and 5B two examples, in the fringe region of display device, sound proof part 400 may be provided at middle machine Between the upper surface and display panel 100 of frame 500 or bottom 300, to form the air gap space as sealing area.Scheming In 5A example, the distance in the space between air gap space, i.e. display panel 100 and bottom 300 is changed into relatively large G1, it is equal to or more than the height " h " of sounding driver 200.In Fig. 5 B example, because one of sounding driver 200 Divide and be inserted into the supported hole 310 of bottom 300, so the distance of the air gap space between display panel 100 and bottom 300 It is changed into G2, it is less than the height of sounding driver 200.
Therefore, Fig. 5 B example can make the thickness of display device be less than Fig. 5 A example, such as T1>T2, thus it is more suitable Together in the thinning tendency of the recent thickness for reducing display device.Therefore, embodiments of the present invention can be including being formed Supported hole in the bottom of the posterior support structure of display panel, and sounding driver can be fixedly inserted into supported hole, such as Shown in Fig. 5 B.
Meanwhile there is supported hole in the bottom of display device as described above and sounding driver is fixedly inserted into support In example in hole, the diameter of supported hole can be more than the diameter of sounding driver, and this can cause via sounding driver and bottom Between gap sound leakage phenomenon.This will be described below in reference to Fig. 6 A to 8.
Fig. 6 A are the perspective views of the sounding driver with extension, and extension is formed to fix sounding driver To bottom.Fig. 6 B are to illustrate the backsight that wherein sounding driver is fixedly inserted into the state to be formed in the supported hole in bottom Figure, bottom is display device supporting construction.Fig. 7 A and 7B are intercepted along the line II-II ' in Fig. 6 B and line III-III ' respectively Profile, there is illustrated the gap S between the supported hole in the side surface and bottom of sounding driver and via gap S's Sound leakage phenomenon.
As shown in Fig. 6 A and 6B example, it may pass through bottom 300 and form supported hole 310.The bottom of sounding driver 200 In plate 210, magnet 220 and upper board 210 ' it is at least one can be inserted into and be contained in supported hole 310.Extension 212 can enter One step is formed on the lower surface of the lower panel 210 of sounding driver 200 to extend to outside lower panel 210.Extension 212 can The lower surface of bottom 300 is fixed to, sounding driver 200 is arranged on bottom.
That is when sounding driver 200 is fixed into bottom 300 as depicted in figure 6b, can be in the rear table of bottom 300 Screw is formed in face, screw 320 or screw can be fastened via the through hole formed in the extension 212 of lower panel 210, thus will Sounding driver 200 is fixed to bottom 300.Because sounding driver 200 should be inserted in the supported hole 310 of bottom 300, The diameter D2 of supported hole 310 should be more than the diameter D1 of sounding driver 200, as shown in Fig. 6 A examples.
Sounding driver 200 for example should consumingly be vibrated with tens kHz or bigger frequency.However, in this process, Sounding driver 200 may collide the inner side of supported hole 310, and there may be unnecessary noise.In addition, in order to wind The externally connected sounding control unit of coil 260 on the bobbin of sounding driver 200, it is necessary to a space to allow from outer Portion introduces connection wiring (see Fig. 7 mark 262).
Therefore, the diameter D2 of the supported hole 310 of bottom 300 should be than the big one specific chis of diameter D1 of sounding driver 200 It is very little.Therefore, as shown in Fig. 6 B and 7B example, the side surface of sounding driver 200 and bottom 300 supported hole 310 it Between gap S be present.That is as shown in Fig. 7 A examples because the extension 212 of lower panel 210 be formed as only left and right or Extension up and down, so the support of sounding driver 200 and bottom 300 can be formed on all directions for do not formed extension 212 Gap S between hole 310.
As described above, the sealing characteristics of air gap space A/G raising provide improvement by the vibration of display panel Sound produce and transmission characteristic.However, the gap S between the side surface of sounding driver and the supported hole of bottom can deteriorate sky Gas clearance space A/G sealing characteristics.
That is as shown in Fig. 7 B examples, caused sound can be via sounding driver 200 in air gap space Reveal gap S portion between side surface and the supported hole 310 of bottom 300.Revealed based on sound as described above, between air Acoustic pressure in gap space reduces so that sound output reduces.Further, since reflected as caused by the sound revealed caused by sound Interference, can deteriorate sound quality.
Fig. 8 be diagram due to the leakage sound in Fig. 7 B from rear wall reflection and be forwardly directed to and it is caused reflection sound with And the thus diagram of caused sound property degradation phenomena.
As shown in Fig. 8 examples, what the gap S between the side surface of sounding driver and the supported hole of bottom was revealed Sound can mount display (TV or the like) from it rear wall reflection to be directing forwardly beholder.The sound can be claimed For " reflection sound ' a ' ".Reflection sound " a " can have the phase different from original caused normal sound " b ", or reflected sound Sound " a " can interfere with normal sound " b ", thus cause whole sound output characteristics to deteriorate.
Sounding driver 200 is fixedly inserted into the method to be formed in the supported hole in bottom 300 to show for reducing The thickness of device is favourable.However, in this case, exist due to sounding driver side surface and bottom supported hole it Between gap S and sound output characteristics deteriorate the problem of.
Therefore, can be in the rear portion of sounding driver in the embodiment described below in reference to Fig. 9 A and 9B example Formed with larger diameter peripheral part, and can the peripheral part of sounding driver inner surface and bottom outer surface (after Surface) between formed for reduce reflection sound leakage containment member, thus provide improve disadvantages mentioned above structure.
Fig. 9 A are cuing open according to the display device for including sounding driver and containment member of present disclosure embodiment Face figure.Fig. 9 B are the perspective views of the sounding driver with peripheral part, and peripheral part uses moulded closure formation.
It may include according to the panel vibration type sounding display device of present disclosure embodiment：For the aobvious of display image Show panel 100；Bottom 300, supporting construction of the bottom 300 as the rear surface for covering and at least supporting display panel；Hair Sound driver 600, sounding driver 600 insert in the supported hole 310 being arranged in bottom 300 and are arranged so that its end Contacted with a surface of display panel 100, carry out sounding to vibrate display panel；And containment member 700, containment member 700 It is arranged between the peripheral part of sounding driver 600 and the outer surface of bottom 300.
The supported hole 310 of display panel 100, bottom 300 and formation in bottom 300 in Fig. 9 A and 9B example It is identical with the structure of the example description above with reference to Fig. 2A to 8.Thus, its detailed description will be omitted.
Lower panel 610 that sounding driver 600 may include to be inserted into supported hole 310, the magnet in lower panel 610 620th, the center pole 630 in the center of lower panel 610, bobbin 650, bobbin 650 surround the periphery of center pole 630 and tool The coil 660 for having the end contacted with display panel 110 and being wrapped on the periphery of bobbin 650.In this case, bobbin 650 and coil 660 can be described as " sound " circle.However, this detailed construction is only example, because can use various other equivalent Part realizes the driver of the embodiment for present disclosure.
In addition, the sounding driver 600 used in Fig. 9 A and 9B example is not limited to the outside magnetic shown in Fig. 9 A and 9B Swage, but as described in above referring for example to Fig. 3 B examples, apply also for wherein magnet and be arranged at the center of driver Inner magnet swage or miniature.The more detailed construction and operating principle of sounding driver 600 with above with reference to Fig. 3 A and 3B And those of Fig. 4 A and 4B description are corresponding.Thus, its detailed description will be omitted, to avoid repeated description.
The bonding component 680 of display panel 100 can be provided for bobbin 650 being bound in the end of bobbin 650.It is viscous Structural member 680 can be for example made up of two-sided tape or the like.
In addition, in addition to bonding component 680, at least one plate can be also set on the end of bobbin 650.The plate can It is integrally formed with bonding component 680.Vibration force can be transferred to display panel 100 by vibration transmission board according to the movement of bobbin 650. Vibration transmission board can for example be formed by plastic material, metal or the like.In one example, vibrating transmission board can be by metal material Material is made, to discharge from heat caused by bobbin 650 and sounding driver 600.Damper 670 may be provided at the upper of bobbin 650 Between the part and bonding component 680 in portion.
The rear portion of sounding driver 600 can further comprise peripheral part, and peripheral part is defined as the diameter than lower panel 610 The region larger extended.The peripheral part of sounding driver 600 can be configured to extend and integrally formed extension from lower panel, Or can be for example injection-molded by inserting molding or similar technique to surround the single mould of the side surface of lower panel Lid 690 processed.In Fig. 9 A and 9B example, the side of driver 600, such as lower panel 610 is surrounded using that can be injection-molded Peripheral part of the single moulded closure 690 of face structure as sounding driver 600.
As shown in Fig. 9 B examples, moulded closure 690 is formed as at least surrounding lower panel 610 or is conjugated the side surface of part, Lower panel 610 or conjugation part are the structures of the rearmost of sounding driver 600.Can be by the way that lower panel 610 or conjugation part be inserted In specific mould, plastics or resin are then toppled in the mold to perform and injection-molded manufactures moulded closure 690.
In one example, moulded closure 690 can be manufactured into the side surface of covering lower panel 610 and the grade of magnet 620.One In a little situations, moulded closure 690 can cover the rear surface of lower panel 610.Moulded closure 690 is not limited to term " moulded closure ", as long as its It is the structure of the part as described above for surrounding driver, it can be by other terms, such as driver supporting part, molded panel Or molded structure represents.
Moulded closure 690 can be formed by the material of such as plastics etc, and moulded closure 690 may include from sounding driver 600 The extension 694 of the side surface radial expansion of lower panel 610 and the extension integrally extended from the both sides of extension 694 692.Through hole 696 can be formed in each of extension 692, so that fixing screws 320 pass through.
That is in Fig. 9 A and 9B example, moulded closure 690 can form the peripheral part of sounding driver 600.For example, Containment member 700 may be provided between the inner surface of the extension 694 of moulded closure 690 and the rear surface of bottom 300.Moulded closure 690 can be bonded to bottom 300 by the fixing screws 320 for the through hole 696 being passed through in the extension 692 of moulded closure 690.
The sounding driver 600 including moulded closure 690 of the example according to Fig. 9 A and 9B is described in more detail below Fixing means.First, can by self-fastening nut 330, such asOne end of nut is pressed into be formed in bottom 300 In self-fastening nut fixing hole.Then, the terminal part of envelope self-fastening nut 330 can be applied, to be fixed to bottom 330.
Because can also form through hole 696 in the extension 692 of the moulded closure 690 of driver 600, the through hole can be with The screw hole alignment of self-fastening nut 330.Then, fixing screws 320 can tighten so that sounding driver 600 is fixedly engaged To bottom 300.
Nut 330 is a kind of " self-fastening " nut.When using such asThe self-fastening spiral shell of nut etc During mother 330, there is the advantages of length that can reduce fixing screws 320.In addition, also having can solve when fixing screws 320 are straight Connect when being screwed to bottom 300 due to bottom is relatively thin and the problem of fixed force deficiency.
That is when in the absence of self-fastening nut 330, it is necessary to by through the fixing screws 320 of the through hole of moulded closure 690 The screw hole to be formed in bottom 300 is directly screwed to, moulded closure 690 is the peripheral part of sounding driver 600.In the situation In, the problem of engagement is not present when the thickness of bottom is larger.However, when bottom is relatively thin, it is inadequate to there is engaging force Problem.Therefore, when self-fastening nut 330 is fixed into bottom 300 as described above by press fitting/filling (caulking) method, When the peripheral part of driver 600 then being tightened into self-fastening nut 330, even if bottom is relatively thin, it can also ensure that enough Engaging force.
Meanwhile in Fig. 9 A and 9B example, containment member 700 may be provided at the peripheral part for forming sounding driver 600 Moulded closure 690 inner surface, such as between the inner surface of the extension 694 of moulded closure 690 and the rear surface of bottom 300.
Containment member 700 can be the containment member of annular O loop types.The side of containment member 700 is accessible or can be attached It is connected to peripheral part (that is, the interior table of the extension 694 of the moulded closure 690 in Fig. 9 A and 9B embodiment of sounding driver 600 Face), opposite side can contact the outer surface of bottom 300, thus seal the driver space inside the containment member 700.Therefore, such as Described in reference picture 6A to 8, can reduce gap S between sounding driver and the supported hole of bottom sound leakage and by The generation of reflection sound caused by this.
Therefore, the selection of the material of containment member 700 becomes critically important.When containment member 700 is only by with low elasticity mould During the soft material formation of amount, the acoustic pressure of the sound of the gap S leakages between sounding driver and the supported hole of bottom can make Containment member 700 deforms.As a result, there is number voice leakage.
That is when containment member 700 is only formed by single soft material and during the acoustic pressure increase of caused sound, sealing Component is deformable, and sound can be revealed via the gap between containment member and the surface of bottom.As a result, abnormal sound can be produced Sound, such as hiss noise and the sound that trembles.
On the contrary, when the hard material with high elastic modulus is used as the material of containment member 700, can reduce due to above-mentioned Deform caused by acoustic pressure, and thus reduce sound leakage.However, when sounding driver is vibrated with sounding, in containment member 700 End and the rear surface of bottom 300 between can carry out intermittent contact.Because the two components are formed by solid material, So while this contact can produce noise.
Therefore, as shown in Figure 10 A and 10B example, can be configured to according to the containment member 700 of embodiment including can The first sealing unit 710 and the second sealing unit 720 formed by two kinds of different materials.
Figure 10 A and 10B are diagram of the diagram for the detailed configuration of the containment member of present disclosure embodiment.
As shown in Figure 10A and 10B, containment member 700 can be the annular construction member for having certain height L.Containment member The extension 694 of the peripheral part for the sounding driver that 700 total height L can be substantially equal in Fig. 9 A, i.e. moulded closure 690 and bottom The distance between 300 rear surface.
As shown in FIG. 10A, containment member 700 may include：First sealing unit 710, the first sealing unit 710 and sounding The inner surface of the peripheral part of driver contacts and has the first modulus of elasticity；With the second sealing unit 720, the second sealing unit 720 extend from the first sealing unit and have second modulus of elasticity lower than the first modulus of elasticity.First sealing unit 710 can Contact or can be bound to sounding driver peripheral part inner surface.Second sealing unit 720 can contact the rear surface of bottom.
First modulus of elasticity of the first sealing unit 710 can be about 2Mpa or bigger.First sealing unit 710 can be by Relatively hard material, such as metal or plastics are formed.On the contrary, the second modulus of elasticity of the second sealing unit 720 can be about 0.5Mpa or smaller.Second sealing unit 720 can be formed by soft material, such as silicones, rubber or non-woven fabrics.When as described above When containment member is formed by two kinds of materials with dual extension-compression modulus, can reduce can when containment member is formed by single material Can occur above mentioned problem, i.e. using rigid material situation in produce noise and using soft material situation in by Cause sound leakage phenomenon in deformation.
When using the containment member 700 with above-mentioned dual structure, because on the peripheral part of sounding driver First sealing unit 710 is rigid material, so can reduce due to deformation caused by acoustic pressure.In addition, formed by soft material and The second sealing unit 720 for contacting the rear surface of bottom serves as damper, and damper is absorbed due to caused in vibration processes Impacted caused by contact with the rear surface of bottom, thus reduce the generation of noise.For the effect is maximized, can be optimized The height of each of one sealing unit 710 and the second sealing unit 720, this is described below.
First, as shown in Figure 10 B, the second sealing formed by soft material can be determined according to the material of the second sealing unit The height L2 of unit 720, but height L2 can be set to such as about 3mm or smaller.That is the height of the second sealing unit 720 L2 can be set as particular value according to material, as long as it can stop due to the contact with bottom and cause noise to occur.
Meanwhile the height L1 of the first sealing unit 710 formed by hard material can according to the height L of whole containment member and Differently set, it can be confirmed as the second sealing unit 720 of particular value by being subtracted from the height L of whole containment member Height L2 determine.
For example, when the inner surface of the peripheral part of sounding driver and after the distance between the surface of bottom are, for example, 10mm When, when the total height L of containment member 700 is about 10mm and the height L2 of the second sealing unit 720 of non-woven fabrics form can For 1mm when, the height L1 of the first sealing unit 710 can be about 9mm.When the second sealing unit 720 formed by silicones Height L2 when being 2mm, the height L1 of the first sealing unit 710 can be about 8mm.
Thus, by arranging containment member between the peripheral part of sounding driver and the rear surface of bottom, warp can be reduced Revealed by the sound of the gap S between sounding driver and the supported hole of bottom.In addition, by the way that containment member is formed as having The double seal unit of dual extension-compression modulus and the material (modulus of elasticity) and height for optimizing double seal unit, can reduce Reduce the generation of the noise caused by contact of the containment member with bottom while sound is revealed.
Meanwhile used when during being configured to set the peripheral part of sounding driver 600 of containment member 700 as schemed During the moulded closure 690 that can be additionally formed at shown in 9A and 9B example on the periphery of sounding driver 600, have and do not changing Installation is according to the close of present disclosure in the case of the basic structure of sounding driver 600 including lower panel 610 (conjugation part) The advantages of sealing component 700.
Figure 11 A are cuing open according to the display device for including sounding driver and containment member of present disclosure embodiment Face figure.Figure 11 B are the perspective views of sounding driver of the diagram with peripheral part, and peripheral part is by the bottom by extending driver Extension that plate (or conjugation part) is formed and formed.
As described above, for arrangement containment member 700, the branch being extended to have than bottom can be formed on sounding driver Support the peripheral part of hole larger diameter.In order to form the peripheral part of sounding driver, it is contemplated that two examples.
Figure 11 A and 11B illustrate an example, wherein the feelings of the moulded closure 690 of the example in without using Fig. 9 A and 9B Under condition, it can integrally extend from the lower panel 610 among the part of sounding driver 600 or conjugation part and form extension 614.Just It is to say, when manufacturing the lower panel 610 of sounding driver 600, can be formed on side has bigger than the diameter of remainder The annular protrusion of diameter, rather than in general cylindrical shape or cylinder are formed, wherein the annular with increased diameter is prominent Region can be described as " extension 614 ".
Extension 614 can form the peripheral part for the sounding driver 600 being defined herein.Containment member 700 may be provided at Between extension 614 and the rear surface of bottom 300.
As shown in Figure 11 B examples, when assuming that sounding driver 600 a diameter of D1 when, the diameter of extension 614 can shape As being greater than D1 D3, and formation can be extended in a part for extension 614 and be used to be screwed driver 600 Extension 612.
Figure 11 A are the profiles that wherein sounding driver is fixed to the sounding driver in the situation of bottom.By such as scheming Using the self-fastening nut 330 for being fixed to bottom shown in 9A and 9B example, there is the sounding excitation of structure shown in Figure 11 A Device 600 can be arranged on bottom by fixing screws 320.
Containment member 700 with annular shape may be provided at the inner surface of extension 614 and bottom 300 rear surface it Between, extension 614 forms the peripheral part of sounding driver 600.Containment member 700 can have double-walled construction.Because Figure 11 A and Identical, the institute that the detailed configuration of the containment member 700 used in 11B example describes with the example above with reference to Figure 10 A and 10B It is described in detail with that will omit, to avoid repetitive description.
When be configured to arrange containment member 700 sounding driver 600 peripheral part during, such as Figure 11 A and 11B Example shown in the lower panel 610 (or conjugation part) of driver 600 when directly extension is to form extension 614, with using mould Lid structure processed is compared, and has the advantages of rigidity that can ensure sounding driver 600.
Figure 12 A to 12C illustrate several examples of sound proof part, and sound proof part is formed between display panel and intermediate stand, To form the air gap space for transfer voice between the display panel and bottom as oscillating plate, frame is display surface One of supporting construction of plate.
, should be aobvious in the panel vibration type sounding display device according to present embodiment as shown in Fig. 2 B examples Showing to exist between panel 100 and supporting construction (for example, bottom 300) allows panel to be shaken wherein due to sounding driver 200 Dynamic air gap space A/G.In addition, the side of display panel should combine or be attached to the supporting construction of display panel, make Sound wave can be produced during proper display panel vibration.Particularly, caused sound should not be revealed by the side surface of display device To outside.
In this way, in the display device according to embodiment, can between the lower surface of display panel and supporting construction shape Into specific sound proof part 400.For example, specific part (for example, air gap space) can be defined around sounding driver.At this Partial edge, sound proof part can be set between the lower surface of display panel and the upper surface of intermediate stand or bottom.Sound insulation Portion 400 may include the binding part 412 between the upper surface of the supporting construction for the lower surface and display device for being incorporated in display panel, Such as two-sided tape.Further sealing 414 can be set on the periphery of binding part 412.
In one example, the part for forming sound proof part can for example be made by four outer perimeters of display panel Whole display panel areas.However, not limited to this, the part can be defined as being the area in addition to the region for setting source PCB Domain.In addition, when setting two or more sounding drivers to realize stereo grade, the part for forming sound proof part can quilt It is divided into two or more parts.
As shown in Figure 2 B, in addition to the bottom 300 on whole rear surface that can cover display panel, the branch of display device Support structure can further comprise intermediate stand 500, and intermediate stand 500 is bonded to bottom and is configured to one of display panel Divide and lay wherein.Intermediate stand 500 can be the framework shape component formed along the periphery of display panel 100.Intermediate stand 500 It may include：The horizontal supporting portion 502 of a part for display panel 100 is laid thereon；With vertical supporter 504, vertical supporter 504 can bend from horizontal supporting portion 502 to both sides, to cover the side surface of the side surface of bottom 300 and display panel 100.In Between frame 500 may generally be of T-shaped section.Intermediate stand 500 may make up the side appearance parts of display device or set. In some cases, can be integrally formed without using intermediate stand 500 or intermediate stand 500 with bottom 300.
According to Figure 12 A example, the level of intermediate stand 500 can be provided in by forming the binding part 412 of sound proof part 400 Two-sided tape between the upper surface of supporting part 502 and display panel 100.Binding part 412 can be by the lower surface of display panel 100 It is fixedly coupled to intermediate stand 500.
In one example, the sealing 414 for forming sound proof part can be further set on the periphery of binding part 412, it is close Envelope portion 414 can have the uncompressed thickness or highly big uncompressed thickness or height than binding part 412.Sealing 414 can be by There is such as rubber etc elastomeric material to be formed, and can have it is bigger than the uncompressed thickness t1 of binding part 412 not Compressed thickness t2, as shown in figure 12a.
That is as shown in Figure 12 A examples, the side of binding part 412 can be bound to the horizontal support of intermediate stand 500 The inboard portion of the upper surface in portion 502, binding part 412 can be the two-sided tapes for having uncompressed thickness t1.Such as by elasticity Material is formed and the sealing 414 with the uncompressed thickness bigger than t1 may be provided at outside the periphery of binding part 412.
In this case, when display panel 100 is attached to another mating surface of binding part 412, have more greatly not The sealing 414 of compressed thickness can be pressed into specific degrees so that display panel 100 and intermediate stand 500 can be bonded to each other (see Figure 12 B).Therefore, it is possible to further improve the sealing characteristics of the air-gap areas around sounding driver.
Sky is being formed by the horizontal supporting portion 502 of intermediate stand and the thickness of binding part 412 as shown in Figure 12 B examples While gas clearance space A/G, by the way that display panel 100 and bottom 300 are engaged with each other, it can be ensured that display panel being capable of sounding Oscillation space and the caused sound wave in oscillation space can be reduced flow to outside along the side surface of display device.By with The dual structure of binding part 412 and sealing 414 forms the sound proof part 400 for the edge for being arranged on air gap space A/G, and And by forming the sealing 414 with bigger uncompressed thickness, it can further improve air gap space A/G sealing spy Property, enabling further stop the leakage of sound.
It should be appreciated that intermediate stand 500 in this can be by other terms, such as directing plate, plastic base, p- pedestals, branch Support main body, main supporter and mold frame represent, and intermediate stand 500 may include any type of part, such as including Cubic frame like structure, the structure are the section shape with multiple kinks and are connected to bottom with for supporting display panel And sound proof part.Intermediate stand 500 can be formed by the molding material of such as synthetic resin of such as makrolon etc, and can be led to Injection molding process manufacture is crossed, but embodiment is not limited to these examples.
As described above, although intermediate stand can be used to come the supporting gap between bottom and display panel, but intermediate stand The structure being not required, i.e., its can be optional.That is as shown in Figure 12 C examples, in the feelings without using intermediate stand Under condition, a structure can be formed, wherein bottom 300 is formed the side for supporting display panel 100 while being formed aobvious The structure of the side outward appearance of showing device.In this case, bottom 300 can be set to wherein on the side of bottom 300 formed from The upward stage portion 360 of primary surface, and may extend away in vertical direction outside stage portion 360 and form lateral bolster support part 362。
The part at the edge of display panel 100 can be placed in the stage portion 360 of bottom 300 and be bound to stage portion 360, the lateral bolster support part 362 of bottom 300 can surround and protect the side surface of display panel 100.As a result, bottom 300 can be formed The whole side surface of display device and the appearance parts on rear surface.In the structure shown here, in order to be configured to sounding in this configuration Sound proof part 400 or the like, such as double stick tape form binding part 412 may be provided at bottom 300 stage portion 360 it is interior Side.The sealing 414 of the big uncompressed thickness of uncompressed thickness with than binding part 412 may be provided at outside binding part 412.
In this case, display panel 100 can be placed on the step part 360 of bottom 300 and can be bound to viscous One surface of knot 412, is thus bound to bottom 300.Then, sealing 414 can be extruded so that ensure that being used for sound passes Defeated air gap space G3 sealing.
In the case of Figure 12 C example, medial support structures, such as intermediate stand can be omitted, so as to simplify structure.It is logical Cross and the sound proof part 400 for being arranged on the edge of air gap space is formed as having the dual of binding part 412 and sealing 414 Structure, and by the way that sealing 414 to be formed as to have bigger uncompressed thickness, it can be ensured that display panel is capable of shaking for sounding Move space and side surface of the caused sound wave along display panel 100 in oscillation space can be reduced and be leaked to outside.
In embodiments, display panel 100 and bottom 300 in the thickness of air gap space, i.e. air gap space The distance between G3 for example can be adjusted to about 1.0mm to 3.0mm, but not limited to this, it can be according to the vibration journey of display panel Degree is set to different scopes.However, because the demand for the thickness for reducing display device be present, preferably in view of hair It is in the case of the vibratory output of display panel caused by sound driver, the range of sounds to be exported, output quantity etc. that the air gap is empty Between thickness G 3 minimize.In embodiments, experimental result is confirmed it is still further preferred that the thickness G 3 of air gap space is set It is about 2.0mm.
Figure 13 is illustrated when using the containment member according to present disclosure embodiment, the figure of sound output characteristics Table.
In fig. 13, dotted line is represented when unused according to the disclosure as shown in Fig. 6 A and 6B and Fig. 7 A and 7B example During the containment member of content, for the sound output quantity of each frequency.Solid line is represented using the sealing structure according to present disclosure Part, such as situation during containment member 700.
As shown in the dotted line in Figure 13, it can be seen that when the containment member according to present disclosure is not used, due to warp Sound leakage and its reflection sound by the gap S between sounding driver and the supported hole of bottom, it is defeated to generate wherein sound Go out (acoustic pressure) in significantly reduced Dip phenomenons (the dashdotted circle in specific sound scope (for example, about 500Hz to 1000Hz) place Circle).On the contrary, such as Figure 13's is shown in solid, it can be seen that when using the containment member according to present disclosure, can reduce in spy Determine the acoustic pressure at frequency and reduce (Dip phenomenons).As a result, it is possible to uniform sound quality is realized in whole range of sounds.
As described above, according to present embodiment, when configuration includes the display device of panel vibration type sound-producing device, pass through Sounding driver is fixedly inserted into be formed in the supported hole in the supporting construction of display device, and in sounding driver Be provided between the inner surface of peripheral part and the outer surface of supporting construction reduce reflection sound containment member, can reduce via The sound leakage of gap S between sounding driver and the supported hole of supporting construction.
By the way that the containment member that sound is reflected for reducing is formed as into the double seal unit with dual extension-compression modulus And optimize the material (modulus of elasticity) and height of double seal unit, the contact due to containment member with bottom can be reduced and led The generation of the noise of cause.
According to one or more example embodiments of present disclosure, a kind of display device, including：It is configured to display figure The display panel of picture；It is configured to cover the bottom of the display panel；By the sounding driver of the bottom head support, the sounding Actuator arrangement is into the vibration display panel with sounding；And containment member, the containment member are located at the sounding driver Peripheral part and the bottom outer surface between.
According to one or more example embodiments of present disclosure, the sounding driver may include：It is connected to institute State the lower panel of bottom；Magnet in the lower panel；Center pole at the center of the lower panel；Described in encirclement The bobbin of the periphery of center pole, the bobbin have end, and the end is configured to vibrate the display panel；Be wrapped in institute State the coil on the periphery of bobbin.
According to one or more example embodiments of present disclosure, the peripheral part of the sounding driver can wrap The extension integrally radially extended with the lower panel is included, and the containment member can be located at the extension and the bottom Rear surface between.
According to one or more example embodiments of present disclosure, the peripheral part of the sounding driver can wrap Moulded closure is included, the moulded closure at least surrounds the side surface of the lower panel, and the containment member can be located at the molding Between a part for the inner surface of lid and the rear surface of the bottom.
According to one or more example embodiments of present disclosure, the containment member may include：First sealing is single Member, first sealing unit contact with the inner surface of the peripheral part of the sounding driver, first sealing unit With the first modulus of elasticity；With the second sealing unit extended from first sealing unit, second sealing unit is located at On the rear surface side of the bottom, second sealing unit has second springform lower than first modulus of elasticity Amount.
According to one or more example embodiments of present disclosure, first modulus of elasticity can be about 2Mpa Or it is bigger, and second modulus of elasticity can be about 0.5Mpa or smaller.
According to one or more example embodiments of present disclosure, the display device can further comprise being fixed to The self-fastening nut of the bottom, the peripheral part of the sounding driver can be fixed to the self-fastening by fixing screws Nut.
According to one or more example embodiments of present disclosure, may be provided with the end of the bobbin It is at least one following：Component is bonded, the cohesive component is configured to the bobbin being bound to the display panel；Passed with vibration Input board, the vibration transmission board are wholely set with the cohesive component.
According to one or more example embodiments of present disclosure, the display device can further comprise being located at institute State the sound proof part between display panel and the bottom.
According to one or more example embodiments of present disclosure, the sound proof part may include one of the following or two Person：Binding part, the bonded part is in the edge in the space and is bound to the display panel；And sealing.
According to one or more example embodiments of present disclosure, the uncompressed thickness of the sealing is more than described The uncompressed thickness of binding part.
According to one or more example embodiments of present disclosure, the display device can further comprise：It is located at Upper board above the lower panel；External frame on the upper board；With positioned at the bobbin and the external frame Damper between frame.
According to one or more example embodiments of present disclosure, the magnet can be located at the outside of the bobbin with And the outside of the coil.
According to one or more example embodiments of present disclosure, the magnet can be located at the inside of the bobbin with And the inside of the coil.
According to one or more example embodiments of present disclosure, a kind of display device, including：It is configured to display figure The display panel of picture；It is configured to cover the bottom of the display panel；With by the sounding driver of the bottom head support, the hair Sound driver has end, and the end is configured to vibrate the display panel with sounding.
According to one or more example embodiments of present disclosure, the display device can further comprise sealing structure Part, the containment member is between the peripheral part of the sounding driver and the outer surface of the bottom.
According to one or more example embodiments of present disclosure, the sounding driver may include：It is connected to institute State the lower panel of bottom；Magnet in the lower panel；Center pole at the center of the lower panel；Described in encirclement The bobbin of the periphery of center pole, the bobbin have end, and the end is configured to vibrate the display panel；Be wrapped in institute State the coil on the periphery of bobbin.
According to one or more example embodiments of present disclosure, the peripheral part of the sounding driver can wrap The extension integrally radially extended with the lower panel is included, and the containment member can be located at the extension and the bottom Rear surface between.
According to one or more example embodiments of present disclosure, the peripheral part of the sounding driver can wrap Moulded closure is included, the moulded closure at least surrounds the side surface of the lower panel, and the containment member can be located at the molding Between a part for the inner surface of lid and the rear surface of the bottom.
According to one or more example embodiments of present disclosure, the magnet can be located at the outside of the bobbin with And the outside of the coil.
According to one or more example embodiments of present disclosure, the magnet can be located at the inside of the bobbin with And the inside of the coil.
In the case of the technical concept or scope without departing substantially from present disclosure, it can carry out in this disclosure various Modifications and variations, this is obvious to a person skilled in the art.Thus, the embodiment purport of present disclosure In the modifications and variations for the present disclosure that covering is fallen into scope and its equivalency range.

Claims (21)

1. a kind of display device, including：
It is configured to the display panel of display image；
It is configured to cover the bottom of the display panel；
By the sounding driver of the bottom head support, the sounding actuator arrangement is into the vibration display panel with sounding；With
Containment member, the containment member is between the peripheral part of the sounding driver and the outer surface of the bottom.
2. display device according to claim 1, wherein the sounding driver includes：
It is connected to the lower panel of the bottom；
Magnet in the lower panel；
Center pole at the center of the lower panel；
The bobbin of the periphery of the center pole is surrounded, the bobbin has end, and the end is configured to vibrate the display surface Plate；With
The coil being wrapped on the periphery of the bobbin.
3. display device according to claim 2, wherein：
The peripheral part of the sounding driver includes the extension integrally radially extended with the lower panel；And
The containment member is between the extension and the rear surface of the bottom.
4. display device according to claim 2, wherein：
The peripheral part of the sounding driver includes moulded closure, and the moulded closure at least surrounds the side table of the lower panel Face；And
The containment member is located between a part for inner surface and the rear surface of the bottom of the moulded closure.
5. display device according to claim 1, wherein the containment member includes：
First sealing unit, first sealing unit contact with the inner surface of the peripheral part of the sounding driver, institute Stating the first sealing unit has the first modulus of elasticity；With
From the second sealing unit of first sealing unit extension, second sealing unit is located at the rear surface of the bottom On side, second sealing unit has second modulus of elasticity lower than first modulus of elasticity.
6. display device according to claim 5, wherein：
First modulus of elasticity is about 2Mpa or bigger；And
Second modulus of elasticity is about 0.5Mpa or smaller.
7. display device according to claim 1, further comprises：
The self-fastening nut of the bottom is fixed to,
The peripheral part of wherein described sounding driver is fixed to the self-fastening nut by fixing screws.
8. display device according to claim 2, wherein be provided with the end of the bobbin it is following at least it One：Component is bonded, the cohesive component is configured to the bobbin being bound to the display panel；It is described with vibration transmission board Vibration transmission board is wholely set with the cohesive component.
9. display device according to claim 1, further comprise between the display panel and the bottom Sound proof part, the sound proof part form space between the display panel and the bottom.
10. display device according to claim 9, wherein the sound proof part include one of the following or the two：
Binding part, the bonded part is in the edge in the space and is bound to the display panel；With
Sealing.
11. display device according to claim 10, wherein the uncompressed thickness of the sealing is more than the binding part Uncompressed thickness.
12. display device according to claim 2, further comprises：
Upper board above the lower panel；
External frame on the upper board；With
Damper between the bobbin and the external frame.
13. display device according to claim 2, wherein the magnet is located at the outside of the bobbin and the coil Outside.
14. display device according to claim 2, wherein the magnet is located at the inside of the bobbin and the coil Inside.
15. a kind of display device, including：
It is configured to the display panel of display image；
It is configured to cover the bottom of the display panel；With
By the sounding driver of the bottom head support, the sounding driver has end, and the end is configured to described in vibration Display panel is with sounding.
16. display device according to claim 15, further comprises containment member, the containment member is located at the hair Between the outer surface of the peripheral part of sound driver and the bottom.
17. display device according to claim 16, wherein the sounding driver includes：
It is connected to the lower panel of the bottom；
Magnet in the lower panel；
Center pole at the center of the lower panel；
The bobbin of the periphery of the center pole is surrounded, the bobbin has end, and the end is configured to vibrate the display surface Plate；With
The coil being wrapped on the periphery of the bobbin.
18. display device according to claim 17, wherein：
The peripheral part of the sounding driver includes the extension integrally radially extended with the lower panel；And
The containment member is between the extension and the rear surface of the bottom.
19. display device according to claim 17, wherein：
The peripheral part of the sounding driver includes moulded closure, and the moulded closure at least surrounds the side table of the lower panel Face；And
The containment member is located between a part for inner surface and the rear surface of the bottom of the moulded closure.
20. display device according to claim 17, wherein the magnet is located at the outside of the bobbin and the line The outside of circle.
21. display device according to claim 17, wherein the magnet is located at the inside of the bobbin and the line The inside of circle.
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