TWI575301B - Display device - Google Patents

Description

Display device

This invention relates generally to a display device, and more particularly to a display device that reduces the temperature of a horn unit.

The projector is a display device that projects images. Conventional projectors are generally used as video devices that project images to a target screen, or further built-in speaker systems to provide sound effects at the same time. However, the speaker system of the conventional projector usually achieves the function of sounding by adding a horn, and the maximum power limitation of most horn units is that the driving current flows through the coil to cause the coil to generate heat. If the temperature is too high, the adhesive of the fixed coil will deteriorate and disintegrate at a high temperature, and the coil will be deformed or dissipated, so that the horn is permanently damaged.

Because the main function of the projector consumes a lot of power, the temperature inside the casing is very high. For example, the internal temperature of the casing is about 50 degrees, and the hot spot is as high as 70~100 degrees around the bulb. Such a high temperature will seriously affect the output power of the speaker unit, because even if the speaker is not working at all, the coil temperature is already several tens of degrees higher than the room temperature. If the speaker is operated again, the coil is easily damaged by overheating.

Therefore, how to effectively reduce the coil temperature of the horn unit in the limited space of the display device and the high operating temperature is one of the important topics for research and development.

It is an object of the present invention to provide a display device that will have a speaker (eg The horn or horn unit is configured such that its heat sensitive component (eg, coil portion) is remote from the functional components of the display device to reduce the adverse effects of thermal energy generated by the functional component on the heat sensitive component.

Another object of the present invention is to provide a display device that is separated from a functional component of a display device by a compartment design, and allows the speaker compartment to communicate with the external space through the opening of the housing to Increasing the heat dissipation effect reduces the temperature of the heat sensitive components of the horn unit, thereby maximizing the operable power of the horn unit.

In one embodiment, the present invention provides a display device including a housing, a functional system, and a horn unit, wherein the housing is separated by an accommodating space and a horn compartment and has at least one opening, and the horn compartment is opened by The hole is connected to the external space; the functional system is disposed in the accommodating space to enable the display device to have a display function; the horn unit includes the diaphragm portion and the coil portion on the opposite side, and the horn single system is disposed in the horn compartment. The diaphragm portion is directed toward the accommodating space and the coil portion is closer to the opening than the diaphragm portion.

In one embodiment, the display device further includes a partition, wherein the partition is disposed in the housing to separate the resonance space, and the resonance space is located between the speaker compartment and the accommodation space.

In one embodiment, the housing includes a plurality of panels to enclose the receiving space and the horn compartment, and the opening is formed in one of the plurality of panels such that the apertures are 15% to 100% relative to the horn system F.

In an embodiment, the accommodating space is disposed inside the casing, and the horn compartment is a recessed space outside the casing.

In another embodiment, the present invention provides a display device including a housing, a functional system, and a horn, wherein the housing has an accommodating space and at least one opening; the functional system is disposed in the accommodating space for display The device has a display function; the speaker includes a speaker, a diaphragm portion, and In the coil portion, the speaker system has a resonance space, the diaphragm portion is disposed to face the resonance space, and the coil portion is exposed to the speaker, and the horn is disposed in the accommodating space and the opening is corresponding to the coil portion, so that the coil portion is opened by the opening Connected to the external space.

In one embodiment, the display device is a projector and the functional system is a optomechanical system.

In one embodiment, the optomechanical system includes a light source module, an imaging module, and a light transmitting component, wherein the light transmitting component is coupled between the light source module and the imaging module.

10‧‧‧ display device

30‧‧‧ Horn

100, 100', 100" ‧ ‧ shell

102‧‧‧ accommodating space

104‧‧‧ horn compartment

106‧‧‧Opening

108‧‧‧Resonance space

109‧‧‧ recessed space

112, 112'‧‧‧ outer wall panels

114, 114’‧‧‧ inner wall panels

114a‧‧‧Aperture hole

200‧‧‧ functional system

210‧‧‧Light source module

212‧‧‧Lighting unit

214‧‧‧Hybrid unit

220‧‧‧ imaging module

222‧‧‧ lens unit

224‧‧‧ imaging optical unit

230‧‧‧Light transmission parts

300‧‧‧ horn monomer

310‧‧‧ Diaphragm Department

320‧‧‧ coil department

330‧‧‧ Speaker

332‧‧‧Resonance space

1A and 1B are respectively a perspective view and a configuration diagram of a display device according to an embodiment of the present invention; FIG. 1C is a schematic diagram of a speaker unit according to an embodiment of the present invention; FIG. 2 is a display device according to another embodiment of the present invention; FIG. 3 and FIG. 4 are schematic diagrams showing the configuration of a display device according to another embodiment of the present invention; and FIG. 5 is a perspective view of a display device according to another embodiment of the present invention.

The present invention provides a display device, particularly a display device configured by a housing opening corresponding to a horn heat sensitive component, to reduce the adverse effect of thermal energy generated by the functional system of the display device on the heat sensitive component of the horn unit, and further Improve the operating power and life of the speaker. In the following embodiments, the display device of the present invention is exemplified by a projector, but is not limited thereto. In other embodiments, the display device of the present invention can be any electronic device with a speaker attached and a display function. Embodiments of the display device of the present invention will be described in detail later with reference to the drawings.

As shown in FIGS. 1A to 1C, the display device 10 includes a housing 100 and a functional system. 200 and speaker unit 300. The housing 100 is separated from the accommodating space 102 and the horn compartment 104 and has at least one opening 106. The horn compartment 104 communicates with the external space through the opening 106. The functional system 200 is disposed in the accommodating space 102 to cause the display device 10 to have a display function. For example, in this embodiment, display device 10 is a projector and functional system 200 is a optomechanical system. The horn unit 300 includes a diaphragm portion 310 and a coil portion 320 on opposite sides, wherein the horn unit 300 is disposed in the horn compartment 104 such that the diaphragm portion 310 faces the accommodating space 102 and the coil portion 320 is diametrically opposed to the diaphragm The portion 310 is adjacent to the opening 106 so that the coil portion 310 has a higher heat dissipation efficiency.

Specifically, as shown in FIG. 1A , the functional system 200 exemplified by the optical system is disposed in the accommodating space 102 of the housing portion 100 and includes the light source module 210 , the imaging module 220 , and the light transmitting component 230 . The imaging module 220 is disposed on one side of the light source module 230, and the light transmitting member 230 is connected between the light source module 210 and the imaging module 220. In this embodiment, the light transmitting component 230 can be a light pipe, a light guiding column or other component for transmitting light, and the light source module 210, the imaging module 220 and the light transmitting component 230 are configured in an L shape, but not Limited. In other embodiments, the light source module 210, the imaging module 220, and the light transmitting member 230 may be configured in a straight line or in any suitable shape according to design requirements. The light source module 210 transmits light to the imaging module 220 through the light transmitting member 230, and the imaging module 220 processes the light according to the image data and projects the light outside the casing 10 to form an image.

The light source module 210 can include a plurality of light emitting units 212 and a light mixing unit 214. The light emitting unit 212 is disposed around the light mixing unit 214 and emits light to the light mixing unit 214. In this embodiment, one side of the light mixing unit 214 is connected to the light transmitting member 230, and the light emitting unit 212 is respectively disposed on different sides (for example, the other three sides) of the light mixing unit 214 and is emitted to the light mixing unit 214 with different colors or The wavelength of light. The light mixing unit 214 receives and mixes the light emitted from the light emitting unit 212 and outputs mixed light (for example, white light) to the light transmitting member 230. In this embodiment, the light emitting unit 212 is preferably They are light-emitting diodes that output red, green, and blue light, but not limited to this. In other embodiments, the light emitting unit 212 can be a light emitting diode that emits white or other color (or wavelength) light. The imaging module 220 includes a lens unit 222 and an imaging optical unit 224. The imaging optical unit 224 is connected to the light transmitting member 230 to receive light, and the light is processed according to the image data to obtain a corresponding target light, and the target light is obtained by the lens unit 222. Projected outside the casing 10 to form an image. In one embodiment, imaging optics unit 224 includes a digital micromirror device that controls the micromirrors to form an image based on the image signals.

Furthermore, as shown in FIGS. 1A and 1B , the housing 100 includes a plurality of panels (eg, the outer panel 112 , the inner panel 114 ) to enclose the receiving space 102 and the horn compartment 104 . For example, the outer wall panel 112 may include, for example, a top panel, a bottom panel, and a side panel connecting the top panel and the bottom panel to enclose a housing 100 that is, for example, rectangular; and the inner panel 114 is disposed inside the housing 100 to enclose the outer panel 112 The internal space is divided into an accommodation space 102 for accommodating a functional system (for example, a optomechanical system) 200 and a horn compartment 104 for arranging the horn unit 300. The inner wall plate 114 is provided with a horn hole 114a for providing the diaphragm portion 310 of the horn unit 300. In this embodiment, the inner wall plate 114 is preferably an L-shaped plate, and the two ends thereof are respectively connected to the adjacent outer wall plates 112 as the side plates, so as to divide the inner space enclosed by the outer wall plates 112 into substantially independent accommodating spaces 102. And the speaker compartment 104. That is, the top end, the bottom end and the two side ends of the inner wall panel 114 are respectively connected to the outer wall panel 112 as the top plate, the bottom plate and the two adjacent side plates, and the inner wall plate 114 is preferably in addition to the line hole and the horn hole 114a. No other holes are provided, so that the accommodating space 102 and the horn compartment 104 are substantially completely separated, but not limited thereto.

In other embodiments, the inner wall panel 114 can have other shapes and arrangements. In another embodiment, as shown in FIG. 2, the inner wall panel 114' is, for example, a linear plate, and the linear inner wall panel 114' can be connected to the adjacent outer wall panel 112 as a side panel at both side ends, so as to make Space 102 and The ram compartment 104 is substantially completely separated.

Moreover, the opening 106 of the housing 100 is disposed corresponding to the horn compartment 104 such that the horn compartment 104 communicates with the space outside the housing 100 (ie, the external space) through the opening 106. Specifically, the opening 106 is formed in at least one of the plurality of outer wall panels 112 such that the opening 106 has an opening ratio of at least 15% with respect to the horn unit 300. In other words, the area of the opening 106 is preferably 15% or more of the area of the horn unit 300 (especially 15% or more of the area of the coil portion 320), so that the horn compartment 104 can be external to the housing 100 through the opening 106. The external space has sufficient thermal convection, which in turn allows the heat sensitive components of the horn unit 300 (e.g., coil portion 320) to have better heat dissipation efficiency. In one embodiment, the opening 106 has an opening ratio of 15% to 100% with respect to the horn unit 300; for example, with respect to the coil portion 310 of the horn unit 300, the area of the opening 106 is preferably designed such that The outer wall 112 of the opening 106 has an opening ratio of 15% to 100%, but is not limited thereto. In this embodiment, the opening 106 is preferably a circular hole and is formed in one of the outer panels 112 as a side panel, but is not limited thereto. In other embodiments, the apertures 106 can be formed in adjacent outer wall panels 112, as shown in FIG. It should be noted that the shape, the number and the position of the opening 106 may have other changes depending on the actual heat dissipation requirement, and are not limited to the examples.

In the present invention, the horn unit 300 is disposed in the horn compartment 104 such that the heat sensitive component faces the outside of the housing 100, while the other heat resistant component faces the inside of the housing 100. For example, as shown in FIG. 1C, the diaphragm portion 310 is connected to one side of the coil portion 320, and the diaphragm portion 310 has a heat-resistant temperature higher than that of the coil portion 320. When the horn unit 300 is disposed in the horn compartment 104, the diaphragm portion 310 is fixed to the horn hole 114a of the inner wall plate 114 such that the diaphragm portion 310 faces the accommodating space 102 (ie, faces the functional system 200). The coil portion 320 faces the outer wall panel 112 such that the coil portion 320 is closer to the opening 106 than the diaphragm portion 310.

In this embodiment, the opening 106 is preferably disposed on the outer wall 112 of the diaphragm portion 310 and the coil portion 320; that is, the center line of the opening 106 is preferably parallel to the diaphragm portion 310 and the coil. The direction of connection of section 320, but not limited to this. Furthermore, in an embodiment, the opening 106 is formed corresponding to the coil portion 320, and preferably at least the exposed portion of the coil portion 320; that is, when the outside of the housing 100 passes through the opening 106 toward the inside of the housing 100, At least a portion of the coil portion 320 is preferably visible.

In another embodiment, as shown in FIG. 3, the display device 10 further includes a partition 120 for separating the resonance space 108, wherein the resonance space 108 is located between the horn compartment 104 and the accommodating space 102, and the diaphragm portion The 310 series faces the resonance space 108. That is, in the direction in which the diaphragm portion 310 and the coil portion 320 are connected, the housing 100 is sequentially separated from the inside and the outside by an accommodating space 102, a resonance space 108, and a horn compartment 104, wherein the resonance space 108 is preferably Surround the speaker compartment 104. The material and thickness of the separator 120 are preferably considered as a speaker panel, and are more preferably used as a speaker panel and meet the heat dissipation requirements. In this embodiment, the partition plate 120 is disposed in the housing 100 and is closer to the accommodating space 102 than the inner wall panel 114. The top end, the bottom end, and the two side ends of the partition plate 120 are respectively connected as a top plate, a bottom plate, and a relative The inner side of the outer wall 112 of the two side plates separates the resonance space 108 from the inner space surrounded by the outer wall 112 to serve as a speaker cavity of the display device 10, thereby improving the sound performance of the display device 10.

In the embodiment of FIG. 3, the housing 100 is separated from the accommodating space 102, the horn compartment 104, and the resonance space 108. However, in other embodiments, the horn compartment 104 and the resonance space 108 can be combined with the horn unit 300 (including The diaphragm portion 310 and the coil portion 320) are integrated in the speaker to form a speaker device having a speaker structure. As shown in FIG. 4, in another embodiment, the housing 100' has an accommodating space 102 and at least one opening 106. The accommodating space 102 is provided for providing the functional system 200 described above. In addition, a speaker 30 can also be provided. In this embodiment, the speaker 30 includes a speaker 330, a diaphragm portion 310, and a coil portion 320. The speaker 330 has a resonance space 332. The diaphragm portion 310 is disposed to face the resonance space 332 and the coil portion 320 is preferably exposed to the speaker. 330. In other words, the diaphragm portion 310 is disposed near the inside of the speaker 330, and the coil portion 320 is closer to the outside of the speaker 330 than the diaphragm portion 310. The speaker 330 preferably has an opening to expose the coil portion 320.

When the horn 30 is disposed in the accommodating space 102 of the housing 100 ′, the opening 106 is corresponding to the coil portion 320 , so that the coil portion 320 communicates with the external space outside the housing 100 ′ through the opening 106 to improve heat dissipation efficiency. . In other words, when the horn 30 is disposed in the accommodating space 102 of the casing 100', at least a portion of the coil portion 320 is preferably seen when the outer side of the casing 100' is viewed through the opening 106 toward the inside of the casing 100. Similar to the previous embodiment, the housing 100' includes a plurality of panels (eg, the outer wall panel 112) to enclose the receiving space 102. The opening 106 is formed in one of the plurality of outer panels 112 such that the apertures 106 are opposite to the coil portion 320. It has an opening ratio of 15% or more, and preferably an opening ratio of 15% to 100%, but is not limited thereto.

Furthermore, in other embodiments, the opening 106 can be designed such that the portion of the outer panel 112 that opens the opening 106 in the corresponding horn compartment 104 is completely hollowed out; that is, at least one of the outer panels 112 has a comparison The short length or notch is such that at least one side of the horn compartment 104 is not enclosed by the outer wall panel 112 such that at least one side of the horn compartment 104 is an unshielded open side. For example, as shown in FIG. 5, the housing 100" can be designed such that the plurality of outer wall panels 112 have a shorter length or notch, such that the horn compartment 104 is a recessed space 109 outside the housing 100" to accommodate the horn. The unit 300 is disposed outside the casing 100 ”. Specifically, the casing 100 ′′ includes a plurality of outer wall plates 112 , 112 ′ to enclose the accommodating space 102 , wherein the outer wall plate 112 ′ has a rectangular notch as the top plate, and As the side panel outer wall panel 112 is connected to the top panel (ie 112') along the edge of the top panel (ie 112'), so as to be outside the housing 100" The side forms three sides (for example, the top side and two adjacent sides) and has a recessed space 109 on the open side, but is not limited thereto.

Compared with the prior art, the display device of the present invention sets the heat sensitive component of the speaker away from the functional component of the display device to reduce the adverse effect of the thermal energy generated by the functional component on the heat sensitive component, and is increased by the opening. Heat dissipation effect of heat sensitive components. Furthermore, the display device of the present invention is designed such that the speaker unit is separated from the functional components of the display device by the compartment, and the speaker compartment is connected to the external space through the opening of the housing to enhance the heat dissipation effect. Maximize the operational power of the horn unit.

The present invention has been described by the above embodiments, but the above embodiments are for illustrative purposes only and are not intended to be limiting. It will be apparent to those skilled in the art that the embodiments specifically described herein may have other modifications of the embodiments. Accordingly, the scope of the invention is intended to cover such modifications and are only limited by the scope of the appended claims.

10‧‧‧ display device

100‧‧‧shell

102‧‧‧ accommodating space

104‧‧‧ horn compartment

106‧‧‧Opening

112‧‧‧ outer wall panels

114‧‧‧ inner wall panels

114a‧‧‧Aperture hole

200‧‧‧ functional system

210‧‧‧Light source module

212‧‧‧Lighting unit

214‧‧‧Hybrid unit

220‧‧‧ imaging module

222‧‧‧ lens unit

224‧‧‧ imaging optical unit

230‧‧‧Light transmission parts

300‧‧‧ horn monomer

310‧‧‧ Diaphragm Department

320‧‧‧ coil department

Claims (8)

A display device includes: a housing separated by an accommodating space and a horn compartment and having at least one opening, the horn compartment is connected to the external space by the opening; a functional system is disposed at the The accommodating space is such that the display device has a display function; and a horn unit includes a diaphragm portion and a coil portion on the opposite side, and the horn unit is disposed in the horn compartment, so that the oscillating portion The membrane portion faces the accommodating space and the coil portion is closer to the opening than the diaphragm portion. The display device of claim 1, wherein the housing comprises a plurality of panels for enclosing the accommodating space and the horn compartment, the opening being formed in one of the plurality of panels such that the apertures are opposite The horn system has an open cell ratio of 15% to 100%. The display device of claim 1, wherein the accommodating space is disposed inside the casing, and the horn compartment is a recessed space outside the casing. The display device of any one of claims 1 to 3, further comprising a partition, wherein the partition is disposed in the housing to partition a resonance space, the resonance space is located in the speaker compartment and the Between the accommodation spaces. A display device includes: a housing having an accommodating space and at least one opening; a functional system disposed in the accommodating space to enable the display device to have a display function; and a speaker including a a speaker, a diaphragm portion and a coil portion, the speaker has a resonance space. The diaphragm portion is disposed to face the resonance space and the coil portion is exposed to the speaker, the speaker is disposed in the accommodating space, and the opening corresponds to the coil portion, so that the coil portion is opened by the coil portion The hole is connected to the external space. The display device of claim 5, wherein the housing comprises a plurality of panels for enclosing the accommodating space, the opening being formed in one of the plurality of panels such that the aperture is relative to the coil portion It has an open cell ratio of 15% to 100%. The display device of claim 1 or 5, wherein the display device is a projector, and the functional system is a optomechanical system. The display device of claim 7, wherein the optomechanical system comprises a light source module, an imaging module and a light transmitting component, wherein the light transmitting component is connected between the light source module and the imaging module.