CN110460934B - Display device - Google Patents
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- CN110460934B CN110460934B CN201910768985.5A CN201910768985A CN110460934B CN 110460934 B CN110460934 B CN 110460934B CN 201910768985 A CN201910768985 A CN 201910768985A CN 110460934 B CN110460934 B CN 110460934B
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- resonant cavity
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- 238000002955 isolation Methods 0.000 claims description 14
- 230000001629 suppression Effects 0.000 claims description 3
- 239000000178 monomer Substances 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 230000001066 destructive effect Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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Classifications
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- 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
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- 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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
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- 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
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention provides a display device. The display device comprises a panel module and a loudspeaker module. The panel module comprises a display surface and a back surface opposite to the display surface. The speaker module comprises a speaker monomer and a resonant cavity. The speaker unit is connected to the panel module, and the resonant cavity is located at the back of the panel module and connected to the speaker unit. The invention can solve the problems of insufficient sound intensity and poor sound quality of the loudspeaker of the display device in the prior art.
Description
Technical Field
The present invention relates to a display module, and more particularly, to a display module with speaker function.
Background
Generally, when the speaker unit is activated, the vibration mode will squeeze air along the oscillation direction to generate two sound waves with opposite phases and in the positive and negative directions. Therefore, when the listener is positioned on one side of the speaker unit, for example, when the speaker is disposed on the display surface side of the flat panel display device, the user positioned on the display surface can receive only the sound wave of one direction of the speaker, and thus the sound intensity is insufficient. In addition, flat display devices such as televisions or computer screens are usually arranged with their back surfaces against a wall, and when the wall reflects sound waves emitted from a speaker toward the wall, the sound waves often destructively interfere with the sound waves in front of the diaphragm, resulting in a reduction in sound quality. Therefore, the prior art display device with speaker function still has the defect and there is room for improvement.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a display device, which solves the problems of insufficient sound intensity and poor sound quality of a speaker of a display device in the prior art by combining a speaker box with the display device.
In order to achieve the above object, an embodiment of the present invention provides a display device, which includes a panel module and a speaker module. The panel module comprises a display surface and a back surface opposite to the display surface. The speaker module comprises a speaker monomer and a resonant cavity. The speaker unit is connected to the panel module, and the resonant cavity is located at the back of the panel module and connected to the speaker unit.
The optical waveguide structure further comprises a light guide structure, wherein the light guide structure surrounds the resonant cavity.
Wherein, a volume V of the resonant cavity conforms to the following relationship:
The speaker module further includes an opening formed in the resonant cavity and a conduit disposed in the resonant cavity, wherein the conduit is connected to the opening.
The loudspeaker body generates a first sound wave in the resonant cavity and a second sound wave outside the display device, and the first sound wave and the second sound wave form constructive interference outside the display device.
Wherein a length L of the conduit satisfies the following relationship:
Wherein the resonant frequency satisfies the following relationship:
fb＝c×f0wherein c is a constant between 0.8 and 1.2.
The speaker unit and the opening are respectively disposed at opposite ends of the panel module.
The speaker module further includes at least one reflection tube disposed in the resonant cavity and located between the speaker unit and the opening.
Another technical solution provided in an embodiment of the present invention is to provide a display device, which includes a panel module, a plurality of speaker modules, and a light-transmitting isolation component (light-transmitting isolation module). The panel module comprises a display surface and a back surface opposite to the display surface. Each speaker module comprises a speaker unit and a resonant cavity. The speaker unit is connected to the panel module. The resonant cavity is positioned on the back of the panel module and connected with the speaker monomer. The light-transmitting isolation component is arranged between the resonant cavities of the loudspeaker module.
For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the invention.
Drawings
Fig. 1 is a schematic cross-sectional view of a display device according to a first embodiment of the invention.
Fig. 2 is a schematic cross-sectional view of a display device according to a second embodiment of the invention.
Fig. 3 shows a schematic diagram of sound wave transmission of a display device according to a second embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of a display device according to a third embodiment of the invention.
Fig. 5 shows a front view of a display device according to a fourth embodiment of the invention.
FIG. 6 is a cross-sectional view of the display device of FIG. 5 taken along the line M-M.
FIG. 7 is a cross-sectional view of the display device of FIG. 5 taken along the line N-N.
Wherein, the reference numbers:
Back side 102
End portions 11, 12, 13, 14
Loudspeaker unit 21
Light guide structure 3
Space R
Light-transmitting barrier component 4
Backlight L
First sound waves A1, A1'
Second acoustic wave A2
Acoustic path P
Directions D1, D2
Detailed Description
The following description of the embodiments of the display device disclosed in the present invention with reference to fig. 1 to 7 shows specific embodiments, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. However, the following disclosure is not intended to limit the scope of the invention, and those skilled in the art can implement the invention in other different embodiments based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings of the present invention are merely schematic illustrations and are not drawn to actual dimensions.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to physical and/or electrical connections. Further, "electrically connected" or "coupled" may mean that there are additional elements between the elements.
Further, it will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a "first element," "component," "region," "layer" or "portion" discussed below could be termed a second element, component, region, layer or portion without departing from the teachings herein.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms, including "at least one", unless the content clearly indicates otherwise. "or" means "and/or". As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions integers, steps, operations, elements, components, and/or groups thereof.
Furthermore, relative terms, such as "lower" or "bottom" and "upper" or "top," may be used herein to describe one element's relationship to another element, as illustrated. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in one of the figures is turned over, elements described as being on the "lower" side of other elements would then be oriented on "upper" sides of the other elements. Thus, the exemplary term "lower" can include both an orientation of "lower" and "upper," depending on the particular orientation of the figure. Similarly, if the device in one of the figures is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "below" or "beneath" can encompass both an orientation of above and below.
First embodiment
A display device 1000 according to a first embodiment of the present invention will be described below with reference to fig. 1. Referring to fig. 1, a display device 1000 of the present embodiment includes a panel module 1 and a speaker module 2. The panel module 1 has a display surface 101 and a back surface 102 opposite to the display surface 101. In the embodiment, the panel module 1 is a non-self-luminous panel, such as a liquid crystal panel, however, the invention is not limited thereto. The speaker module 2 has a speaker unit 21 and a resonant cavity 22. As shown in fig. 1, the resonant cavity 22 is located on the back 102 of the panel module 1 and connected to the speaker unit 21; the speaker unit 21 is connected to the panel module 1.
Referring to fig. 1, in further detail, in the present embodiment, the display device 1000 includes a light Guide structure 3 for guiding light of the backlight source L to the panel module 1, the light Guide structure 3 includes a housing 31 and a cover plate 32, as shown in fig. 1, the housing 31 and the cover plate 32 together form a space R, and the backlight source L is disposed on an inner surface 301 of the housing 31. in detail, the light Guide structure 3 in the present embodiment may be formed as an Air Guide (Air Guide), wherein the inner surface 301 of the housing 31 has high reflection characteristics, and the cover plate 32 preferably has a polarizer property to at least partially reflect light, and light emitted from the backlight source L is reflected and transmitted between a lower surface 3202 of the cover plate 32 and the inner surface 301 of the housing 31 through the space R surrounded by the housing 31 and the cover plate 32 of the light Guide structure 3, and is incident on the panel module 1 from the upper surface 3201 of the cover plate 32.
Specifically, in the embodiment of fig. 1, the speaker unit 21 is disposed on the housing 31 of the light guide structure 3, and the resonant cavity 22 of the speaker unit 21 is surrounded by the space R of the light guide structure 3; that is, the space R in the light guiding structure 3 is used as the resonant cavity 22 of the speaker unit 21, so that the speaker module 2 is integrated into the display device 1000. The embodiment of fig. 1 realizes the resonant cavity 22 of the speaker module 2 as a closed enclosure; however, the present invention is not limited thereto. In other embodiments, the space R in the casing 31 may be used to form a phase inversion type sound box, a labyrinth type sound box, a paper box type sound box, or the like. The speaker unit 21 generates a sound wave toward the display surface 101 of the panel module 1 and a sound wave toward the resonant cavity 22, respectively, and the sound wave generated toward the resonant cavity 22 is in opposite phase to the sound wave generated toward the display surface 101. The embodiment of the invention utilizes the space R as the closed resonant cavity 22 to absorb the reversed-phase sound waves generated towards the resonant cavity 22, thereby avoiding destructive interference generated by the front and rear sound waves of the panel module 1.
Through the above technical means, the present embodiment can achieve the speaker function of the display device 1000 without occupying additional space outside the display device 1000 to install a speaker. In addition, the opposite-phase sound wave generated by the speaker unit 21 toward the resonant cavity 22 can be absorbed by the resonant cavity 22 without destructive interference with the sound wave generated by the speaker unit 21 on the side of the display surface 101, so that the problem of poor speaker sound quality of the display device in the prior art is solved.
Second embodiment
A display device 2000 according to a second embodiment of the present invention is described below with reference to fig. 2 and 3. Referring to fig. 2, the main difference between the present embodiment and the first embodiment is: in the first embodiment, the resonant cavity 22 is a sealed sound box, and in the present embodiment, the resonant cavity 22 of the speaker module 2A is a phase inversion sound box. In detail, as shown in fig. 2, the speaker module 2A of the present embodiment has an opening 23 formed in the resonant cavity 22, and a duct 24 disposed in the resonant cavity 22 and connected to the opening 23.
Referring to FIG. 3, in the present embodiment, the opening 23 and the conduit 24 are used as an inverter hole and an inverter tube, respectively. Specifically, when the speaker unit 21 is operated to generate the first sound wave a1 into the resonant cavity 22 and generate the second sound wave a2 out of the resonant cavity 22 in a phase opposite to the first sound wave a1, the first sound wave a1 is reflected by the inner surface 301 of the housing 31 to become the sound wave a 1' in a phase identical to the second sound wave a 2. The reflected first acoustic wave a 1' travels towards the conduit 24, exits the resonant cavity 22 through the conduit 24 and the opening 23, and forms a constructive interference with the second acoustic wave a2 outside the display device 2000.
In the present embodiment, the volume V of the resonant cavity 22 preferably satisfies the following relationship (1):
formula (1):
in the above equation, a is the effective vibration radius of the speaker unit 21, α is the vibration suppression parameter of the speaker unit 21, and f0Is the free resonance frequency, m, of the speaker unit 210Generally speaking, the damping parameter α of the speaker unit 21 is related to the Q value of the speaker unit 21, i.e. the free resonant frequency f of the speaker unit 210Q value may be derived from the impedance-frequency curve of the speaker unit 21. the damping parameter α is generally between 0.3 and 5, however, the invention is not limited thereto.
Further, in the preferred embodiment of the present invention, the length L of conduit 24 corresponds to the following formula (2):
formula (2):
in the above formula, V is the volume of the resonant cavity 22, S is the sectional area of the opening 23, fbThe resonant frequency of the resonant cavity 22. In the present embodiment, by adjusting the volume of the resonator 22 and designing the length of the conduit 24, the space R formed by the light guiding structure 3 serves as an inverter box of the speaker unit 21, so that the first sound wave a1 and the second sound wave a2 form constructive interference on the display surface 101 side of the panel module 1, thereby improving the efficiency of the speaker unit 21 and the sound quality of the speaker module 2A.
Furthermore, in the present embodiment, by making the volume V of the resonant cavity 22 and the length L of the guide tube 24 satisfy the above equations (1) and (2), the display device 2000 can achieve the resonant frequency f satisfying the following equationb：
fb＝c×f0Wherein c is a constant between 0.8 and 1.2
In the present embodiment, the speaker unit 21 is disposed to face the same direction as the display surface 101 of the panel module 1, and as shown in fig. 3, the speaker unit 21 and the panel module 1 are both located on the same side of the housing 31, so that the speaker unit 21 emits sound in the display direction of the panel module 1. However, the present invention is not limited thereto. For example, in other embodiments, the speaker unit 21 may be disposed on a side of the housing 31 away from the panel module 1 to emit sound backward, or disposed on upper, lower, right, and right sides of the housing 31 to emit sound toward upper, lower, left, and right sides of the display device 2000.
In addition, in the embodiment, the speaker units 21 and the openings 23 are respectively disposed at the two opposite ends 11 and 12 of the panel module 1, however, the invention is not limited thereto. In other embodiments, it is within the scope of the present invention that the relative positions of the speaker unit 21 and the opening 23 on the housing are such that the first sound wave a1 emitted from the speaker unit 21 is reflected in the resonant cavity 22, passes through the conduit 24 and the opening 23, and constructively interferes with the second sound wave a2 outside the display device 2000.
Through the above technical means, the present embodiment solves the problem of poor sound quality caused by destructive interference of the inverse sound waves at the front and rear sides of the speaker of the display in the prior art by adjusting parameters such as the volume of the resonant cavity 22 and the length of the guide tube 24, that is, by adjusting parameters such as the volume of the space R formed by the light guide structure 3 and the length of the guide tube 24.
Third embodiment
A display device 3000 according to a third embodiment of the present invention will be described with reference to fig. 4. The embodiment of fig. 4 differs from the second embodiment in that the embodiment of fig. 4 is an example in which a labyrinth box is used as the resonant cavity 22. In detail, referring to fig. 4, the speaker module 2B of the present embodiment further includes at least one reflection tube 25. The reflection tube 25 is disposed in the resonant cavity 22 and located between the speaker unit 21 and the opening 23. In detail, in the present embodiment, the reflection tube 25 is disposed on the inner surface 301 of the housing 31 of the light guide structure 3 and is located on the transmission path P of the first sound wave a1 from the speaker unit 21 to the opening 23. In the embodiment of fig. 4, four reflection tubes 25 are taken as an example, however, the invention is not limited thereto. In addition, in practice, the reflective tube 25 may be made of a transparent material, or disposed in the housing corresponding to the non-display area of the panel module 1, or disposed on the non-main light transmission path in the space R, so as to reduce the influence on the light transmission of the light guiding structure 3.
By disposing the reflection tube 25 in the resonant cavity 22, the path length of the first sound wave a1 in the resonant cavity 22 can be extended and adjusted, so that the first sound wave a1 leaving the resonant cavity 22 from the opening 23 is in phase with the second sound wave a2 outside the display device 3000, and the first sound wave a 1' and the second sound wave a2 form constructive interference outside the display device 3000. As such, the resonant cavity 22 of the present embodiment may also have a phase inversion effect similar to the second embodiment, so that the first sound wave generated by the speaker unit 21 in the resonant cavity 22 and the second sound wave generated outside the display device 3000 form a constructive interference.
Fourth embodiment
Fig. 6 is a schematic cross-sectional view of the display device of fig. 5 taken along a cross-sectional line M-M, wherein fig. 6 is a cross-sectional view of the display device 4000 looking in a first direction D1 of fig. 5, fig. 7 is a schematic cross-sectional view of the display device of fig. 5 taken along a cross-sectional line N-N, wherein fig. 7 is a cross-sectional view of the display device 4000 looking in a second direction D2 of fig. 5, the resonant cavity of the present embodiment is implemented by an inverter box as with the resonant cavity of the second embodiment, please refer to fig. 6 and 7, the main difference between the present embodiment and the second embodiment is that a plurality of speaker modules 2C are provided, in the present embodiment, the display device 4000 includes two speaker modules 2C, each speaker module 2C has a speaker unit 21, a corresponding resonant cavity (22A, 22B), an opening 23 and a duct 24, in the present embodiment, each speaker unit 21 is respectively disposed on a corresponding one of two speaker modules 11, 12, as shown in fig. 6, the display device 4000 further includes a speaker unit 4, a light guide light-transmitting isolation wall for isolating light-transmitting light waves, two speaker units 22A, a light-emitting isolation components are disposed in the panel module 1, and two speaker modules 2C, the light-isolation structures of the present embodiment, the speaker modules 2C, the speaker modules can also include isolation structures for preventing interference between the isolation structures of the light-isolation structures of the speaker modules, the light-isolation structures of the present invention, the light-isolation structures of the present embodiment, the light-isolation structures of the present embodiment, the present invention, the light-isolation structures of the present invention, the present.
Referring to fig. 7, in detail, in the present embodiment, in each speaker module 2C, the speaker units 21 and the openings 23 are respectively disposed at the two end portions 13 and 14 of the panel module 1. The sound waves generated by each speaker unit 21 toward the lower surface 3202 side of the cover plate 32 are reflected by the inner surface 301 of the corresponding resonant cavity (22A or 22B, the resonant cavity 22B through which the tangent N-N passes is shown in fig. 6) and transmitted to the conduit 24 adjacent to one end 14 of the panel, and finally leave the display device 4000 through the conduit 24 and the opening 23. By designing the volumes of the resonant cavities 22A and 22B and the length of the conduit 24, the resonant cavities 22A and 22B can also have an inverter box function, that is, the sound waves generated by the speaker unit 21 in the resonant cavities 22A and 22B leave the display device 4000 and form a constructive interference with the sound waves generated by the speaker unit 21 outside the display device 4000.
In summary, in the embodiment of the present invention, the speaker unit is connected to the panel module, and the resonant cavity is located on the back side of the panel module and connected to the speaker unit, so that the speaker module is integrated into the display device.
The disclosure of the present invention is only a preferred embodiment of the present invention, and not intended to limit the scope of the claims of the present invention, and the present invention may have other embodiments, and those skilled in the art may make various changes and modifications according to the present invention without departing from the spirit and the spirit thereof, but these changes and modifications should fall within the scope of the claims of the present invention.
Claims (9)
1. A display device, comprising:
the panel module comprises a display surface and a back surface opposite to the display surface; and
a speaker module, comprising:
a speaker unit connected to the panel module; and
a resonant cavity located on the back of the panel module and connected to the speaker unit;
wherein, a volume V of the resonant cavity conforms to the following relationship:
2. The display device of claim 1, further comprising a light guide structure, wherein the light guide structure surrounds the resonant cavity.
3. The display device of claim 1, wherein the speaker module further comprises an opening formed in the cavity and a conduit disposed in the cavity, wherein the conduit is connected to the opening.
4. The display device of claim 3, wherein the speaker unit generates a first sound wave in the cavity and a second sound wave outside the display device, the first sound wave and the second sound wave forming constructive interference outside the display device.
5. The display apparatus according to claim 3, wherein a length L of the conduit satisfies the following relationship:
6. A display device as claimed in claim 5, characterized in that the resonance frequency corresponds to the following relationship:
fb＝c×f0wherein c is a constant between 0.8 and 1.2.
7. The display device according to claim 3, wherein the speaker unit and the opening are respectively disposed at opposite ends of the panel module.
8. The display device as claimed in claim 7, wherein the speaker module further comprises at least one reflective tube disposed in the cavity between the speaker unit and the opening.
9. A display device, comprising:
the panel module comprises a display surface and a back surface opposite to the display surface;
a plurality of speaker modules, each of the speaker modules comprising:
a speaker unit connected to the panel module; and
a resonant cavity located on the back of the panel module and connected to the speaker unit;
the loudspeaker unit is arranged on the light guide structure, and the light guide structure surrounds the resonant cavity; and
and the light-transmitting isolation component is arranged between the resonant cavities of the loudspeaker module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW108113892 | 2019-04-19 | ||
| TW108113892A TWI706677B (en) | 2019-04-19 | 2019-04-19 | Display device |
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| CN110460934A CN110460934A (en) | 2019-11-15 |
| CN110460934B true CN110460934B (en) | 2020-08-04 |
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| CN201910768985.5A Active CN110460934B (en) | 2019-04-19 | 2019-08-20 | Display device |
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| TW (1) | TWI706677B (en) |
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| KR20210083929A (en) * | 2019-12-27 | 2021-07-07 | 엘지디스플레이 주식회사 | Display apparatus |
| CN114627752B (en) * | 2020-12-11 | 2024-01-26 | 京东方科技集团股份有限公司 | Display panel and display device thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1420673A (en) * | 2001-06-28 | 2003-05-28 | 松下电器产业株式会社 | Loudpeaker system, mobile terminal apparatus and electronic apparatus |
| CN1780494A (en) * | 2004-10-22 | 2006-05-31 | 三星电子株式会社 | Flat panel output apparatus and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1922849A (en) * | 2004-03-05 | 2007-02-28 | 摩托罗拉公司 | Port for an electronic device |
| US20070145231A1 (en) * | 2005-12-21 | 2007-06-28 | Chunghwa Picture Tubes, Ltd | Substrate buffer clamp |
| TW201114272A (en) * | 2009-10-02 | 2011-04-16 | Tai-Yan Kam | Flat type loudspeaker |
| JP5714477B2 (en) * | 2011-12-19 | 2015-05-07 | モレックス インコーポレイテドＭｏｌｅｘ Ｉｎｃｏｒｐｏｒａｔｅｄ | Speaker device |
| CN105812989A (en) * | 2014-12-31 | 2016-07-27 | 鸿富锦精密工业（深圳）有限公司 | Loudspeaker |
-
2019
- 2019-04-19 TW TW108113892A patent/TWI706677B/en active
- 2019-08-20 CN CN201910768985.5A patent/CN110460934B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1420673A (en) * | 2001-06-28 | 2003-05-28 | 松下电器产业株式会社 | Loudpeaker system, mobile terminal apparatus and electronic apparatus |
| CN1780494A (en) * | 2004-10-22 | 2006-05-31 | 三星电子株式会社 | Flat panel output apparatus and method |
Also Published As
| Publication number | Publication date |
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| TWI706677B (en) | 2020-10-01 |
| TW202041043A (en) | 2020-11-01 |
| CN110460934A (en) | 2019-11-15 |
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