Projection device

Abstract

This invention discloses a projection device. The projection device may include: a projector; a housing for accommodating the projector; electronic components installed inside the housing; and a cover made of conductive material covering one side of the housing; the cover can be electrically connected to the electronic components. Thus, an electrical connection structure for the projection device can be provided.

Description

Technical Field

[0001] This invention relates to projection devices. More specifically, this invention relates to a projection device of the stand type. Background Technology

[0002] With the development of modern digital devices and imaging technology, projectors have become devices that provide viewing experiences for users in various environments. As a device that projects images onto a screen, a projector includes a lens that projects images onto the screen and a plurality of optical mechanisms consisting of a plurality of components that provide images to the lens.

[0003] Existing projectors are primarily used when fixed to the ceiling or placed on a table. While this method may be advantageous for providing a stable image in a fixed location, it presents the problem of difficulty in setting up or relocating the projector to suit different work environments.

[0004] Recently, much research has been conducted on structures that improve the portability of projectors. In addition, much research has been done on projectors that can be used in a user-friendly manner in various environments. Summary of the Invention

[0005] The purpose of this invention is to solve the aforementioned problems and other issues.

[0006] Another objective is to provide a projection device of the stand type.

[0007] Another objective is to provide a structure that allows for adjustment of the angle of the projector attached to the bracket.

[0008] Another objective is to provide a projection device having a lighting module and / or a speaker.

[0009] Another objective is to provide a configuration structure for a plurality of electronic components in the head of a projection device.

[0010] Another objective is to provide the respective structures of the head, pole, and base of a projection device, as well as their assembly structure.

[0011] Another objective is to provide a combined structure of multiple counterweights for the base of a projection device.

[0012] Another objective is to provide a structure that mechanically and electrically stably connects the rod to the base.

[0013] Another objective is to provide an electrical connection structure for a projection device.

[0014] Another objective is to provide a structure that minimizes the failure and damage of electronic components by expanding the grounding area of ​​the projection device.

[0015] Another objective is to provide a method for controlling a projection device.

[0016] Another objective is to provide a structure that can drive the projector, lighting module, and speaker independently of each other.

[0017] According to one aspect of the invention for achieving the above or other objectives, the projection device may include: a projector; a housing for housing the projector; electronic components installed inside the housing; and a cover covering one side of the housing, which is made of a conductive material; the cover may be electrically connected to the electronic components.

[0018] Additionally, according to another aspect of the present invention, the projection device may include: a head having a projector; a base spaced apart from the head; and a rod connecting the head and the base; the head includes: a cover forming the outer surface of the head, which is made of a conductive material; and electronic components installed inside the head; the cover may be electrically connected to the electronic components.

[0019] The effects of the projection device of the present invention will be described below.

[0020] According to at least one embodiment of the present invention, a bracket-type projection device can be provided.

[0021] According to at least one embodiment of the present invention, a structure capable of adjusting the angle of a projector coupled to a bracket can be provided.

[0022] According to at least one embodiment of the present invention, a projection device having a lighting module and / or a speaker can be provided.

[0023] According to at least one embodiment of the present invention, a configuration structure of a plurality of electronic components in the head of a projection device can be provided.

[0024] According to at least one embodiment of the present invention, a structure for the head, pole, and base of a projection device, as well as their assembly structure, can be provided.

[0025] According to at least one embodiment of the present invention, a combined structure of a plurality of counterweights for the base of a projection device can be provided.

[0026] According to at least one embodiment of the present invention, a structure that mechanically and electrically stably combines a rod with a base can be provided.

[0027] According to at least one embodiment of the present invention, an electrical connection structure for a projection device can be provided.

[0028] According to at least one embodiment of the present invention, a structure can be provided to minimize the failure and damage of electronic components by expanding the grounding area of ​​the projection device.

[0029] According to at least one embodiment of the present invention, a control method for a projection device can be provided.

[0030] According to at least one embodiment of the present invention, a structure capable of independently driving a projector, a lighting module, and a speaker can be provided.

[0031] The scope of applicability of the present invention will become clear from the following detailed description. However, since those skilled in the art will clearly understand the various changes and modifications within the spirit and scope of the invention, the detailed description and specific embodiments, such as preferred embodiments, should be understood only by way of illustration. Attached Figure Description

[0032] Figures 1 to 61 This is a diagram illustrating an example of a projection device according to an embodiment of the present invention. Detailed Implementation

[0033] Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings, and the same or similar components will be given the same reference numerals, regardless of the drawing numbers, and repeated descriptions thereof will be omitted.

[0034] The suffixes “module” and “section” used for the constituent elements in the following description are assigned or used interchangeably only for the convenience of writing the specification, and do not in themselves carry a distinguishing meaning or function from each other.

[0035] Furthermore, when describing the embodiments disclosed in this specification, detailed descriptions of related well-known technologies are omitted if it is determined that such detailed descriptions may obscure the spirit of the embodiments disclosed in this specification. Additionally, the accompanying drawings are only for aiding understanding of the embodiments disclosed in this specification, and the technical concepts disclosed in this specification are not limited to the drawings. They should be understood to include all modifications, equivalents, and substitutions within the scope of the present invention.

[0036] Terms containing ordinal numbers, such as "first" and "second," can be used to describe multiple constituent elements, but the constituent elements are not limited by these terms. These terms are used only for the purpose of distinguishing one constituent element from others.

[0037] When a component is referred to as "coupled," "fixed," "mounted," "connected," or "linked" to another component, it should be understood that other components may exist between the two components. When a component is referred to as "directly coupled," "directly fixed," "directly installed," "directly connected," or "directly linked" to another component, it should be understood that no other components exist between the two components.

[0038] Unless the context clearly indicates otherwise, singular expressions include plural expressions.

[0039] In this application, it should be understood that terms such as “comprising” or “having” are only for specifying the presence of features, numbers, steps, actions, constituent elements, components or combinations thereof as described in the specification, and are not intended to preclude the possibility of the presence or addition of one or more other features or numbers, steps, actions, constituent elements, components or combinations thereof.

[0040] The directions shown in the accompanying drawings—U (up), D (down), Le (left), Ri (right), F (front), and R (rear)—are for illustrative purposes only, and the technical concepts disclosed in this specification are not limited thereto.

[0041] Reference Figure 1 The projection device 1 may include a head 10 and a stand 20. The projection device 1 may be referred to as a projection apparatus 1 or a projector 1. The projection device 1 may also be referred to as an electronic device 1.

[0042] The head 10 can project images (including videos) onto a surface such as a screen, wall, or ceiling. The head 10 can access video content from OTT (Over-The-Top) services using built-in components and can project images of said content. Alternatively, the head 10 can access video content from OTT services using an external device connected to it and can output images of said content. The head 10 can be referred to as a projector 10, a beam projector 10, a body 10, or a kit 10.

[0043] The support 20 can support the head 10. The support 20 may include a pole 30 and a base 40. The pole 30 may extend long, and one side of the pole 30 may be connected to the head 10. The base 40 may be connected to the other side of the pole 30. For example, the pole 30 may extend vertically, and the head 10 may be attached to the upper end of the pole 30. For example, the base 40 may be attached to the lower end of the pole 30 and may be placed on the ground. The base 40 may be referred to as the support base 40.

[0044] The width D4 of the base 40 can be greater than the width D1 of the head 10. The length H3 of the rod 30 can be greater than the width D4 of the base 40. The height H1 of the projection device 1 can be the distance between the top surface of the head 10 and the bottom surface of the base 40. Alternatively, the height of the projection device 1 can be the distance between the top surface of the head 10 and the bottom surface of the base 40 (see reference). Figure 40 The distance between the lower ends of ) can be greater than the height H1.

[0045] Reference Figure 2 The head 10 can have a round box shape overall. Alternatively, the head 10 can also have an angular box shape.

[0046] Reference Figure 3 and Figure 4 The head 10 may include a housing 11 and a frame 12.

[0047] The housing 11 can form the internal space of the head 10. The housing 11 can include a top housing 111 and a bottom housing 112. The top housing 111 can form the top of the housing 11 and can generally have a circular plate shape. The bottom housing 112 can form the bottom of the housing 11 and can have a tub shape. The top housing 111 can be detachably attached to the bottom housing 112, and the internal space of the head 10 can be formed between the top housing 111 and the bottom housing 112.

[0048] The frame 12 can be located between the top housing 111 and the bottom housing 112. The frame 12 can be mounted on the bottom housing 112. The frame 12 can generally have a circular plate shape. The internal structure of the head 10 can be configured between the top housing 111 and the frame 12.

[0049] The cover 10C may cover the top surface of the top housing 111. The cover 10C may include a plurality of pores or a plurality of holes. The plurality of pores or holes of the cover 10C may... Figure 1 and Figure 56 As shown in the figures. To reduce the complexity of the figures, Figure 2 , Figure 3 Other accompanying drawings may show a cover 10C with the plurality of said fine holes or the plurality of said holes omitted. Figure 2 , Figure 3 The cover 10C in the other accompanying drawings may also include a plurality of the aforementioned fine holes or a plurality of the aforementioned holes. The cover 10C may be a metal mesh. Alternatively, the cover 10C may also be made of fabric. On the other hand, the top housing 111 may be omitted and the cover 10C may face the frame 12, or the top housing 111 and the cover 10C may be formed integrally.

[0050] Reference Figure 5 The cover 10C can generally have an annular plate shape and can have a hole 10CH. The hole 10CH can be formed in the center of the cover 10C. An outer rib 10CA can be disposed along the outer edge of the cover 10C. The outer rib 10CA can protrude downward from the outer edge of the cover 10C and can extend along the outer edge. An inner rib 10CB can be disposed along the inner edge of the cover 10C. The inner rib 10CB can protrude downward from the inner edge of the cover 10C and can extend along the inner edge. The inner edge of the cover 10C can define the boundary of the hole 10CH.

[0051] As a metal mesh screen, a plurality of holes in the cover 10C can be formed in portions of the cover 10C between the outer rib 10CA and the inner rib 10CB. A cushioning pad 10CS can be located between the outer rib 10CA and the inner rib 10CB, covering the bottom surface of the cover 10C. The cushioning pad 10CS can include a plurality of holes 10CSC and 10CSH corresponding to a plurality of holes 111C and 111H in the top housing 111. For example, the cushioning pad 10CS can be made of a non-woven fabric material.

[0052] An outer flap 10CM can protrude from the outer rib 10CA and face the portion of the cover 10C between the outer rib 10CA and the inner rib 10CB. The outer flap 10CM can be referred to as an electrical conductor 10CM, contactor 10CM, gripper 10CM, protrusion 10CM, or bent portion 10CM. The protrusion 10CMa can be bent from the outer rib 10CA, and an extension 10CMb can be formed at the end of the protrusion 10CMa. The extension 10CMb can have various shapes such as triangles or quadrilaterals. A pair of slits 10CMc can be formed on both sides of the protrusion 10CMa. A plurality of outer flaps 10CM can be arranged along the outer rib 10CA and can be spaced apart from each other.

[0053] An inner flap 10CN can protrude from the inner rib 10CB and can face the portion of the cover 10C between the outer rib 10CA and the inner rib 10CB. The inner flap 10CN can be referred to as a conductor 10CN, contactor 10CN, clamping member 10CN, protrusion 10CN, or bend 10CN. The protrusion 10CNa can be bent from the inner rib 10CB, and an extension 10CNb can be formed at the end of the protrusion 10CNa. The extension 10CNb can have various shapes such as triangles or quadrilaterals. A pair of slits 10CNc can be formed on both sides of the protrusion 10CNa. A plurality of inner flaps 10CN can be arranged along the inner rib 10CB and can be spaced apart from each other.

[0054] Reference Figure 6 and Figure 7 The cover 10C can cover the top of the top housing 111. An insertion hole 111C can be formed in the top housing 111 corresponding to the hole 10CH of the cover 10C. The inner rib 10CB of the cover 10C can be inserted into the insertion hole 111C of the top housing 111 and can be adjacent to the boundary surface of the insertion hole 111C. The outer rib 10CA of the cover 10C can surround the outer edge of the top housing 111. For example, the cover 10C can be made of a conductive material such as metal, and the top housing 111 can be made of a plastic material.

[0055] An outer groove 111M may be formed adjacent to the outer periphery of the top housing 111 on the bottom surface of the top housing 111. The outer groove 111M may be recessed from the bottom of the top housing 111 and may have a shape corresponding to the outer flange 10CM of the cover 10C. The outer groove 111M may be referred to as a recessed portion 111M. A wall 111MW may protrude from the bottom of the top housing 111 and may extend to surround the outer groove 111M. A plurality of outer grooves 111M may be arranged along the outer periphery of the top housing 111 and may be spaced apart from each other. A plurality of outer flanges 10CM may be bent (folded) from the outer rib 10CA of the cover 10C and located on the plurality of outer grooves 111M. Thus, the outer portion of the cover 10C can be joined to the top housing 111.

[0056] An inner groove 111N may be formed adjacent to the insertion hole 111C of the top housing 111 on the bottom surface of the top housing 111. The inner groove 111N may be recessed from the bottom of the top housing 111 and may have a shape corresponding to the inner flange 10CN of the cover 10C. The inner groove 111N may be referred to as a recess 111N. A plurality of inner grooves 111N may be arranged along the insertion hole 111C of the top housing 111 and may be spaced apart from each other. A plurality of inner flanges 10CN may be bent (folded) from the inner rib 10CB of the cover 10C and located on the plurality of inner grooves 111N. Thus, the inner portion of the cover 10C may be engaged with the top housing 111.

[0057] The top housing 111 may include a plurality of holes 111C and 111H. An insertion hole 111C may be formed in the central portion of the top housing 111. A speaker hole 111H may be formed in the top housing 111 and may be spaced apart from the insertion hole 111C. The speaker hole 111H may be adjacent to the edge of the top housing 111. A first speaker hole 111Ha and a second speaker hole 111Hb may be spaced apart from each other. The three holes 111C, 111Ha, and 111Hb may be located at a plurality of vertices of a triangle.

[0058] An annular rib 111R may protrude from the bottom surface of the top housing 111 and define a speaker hole 111H. Rib 111R may have a shape in which a hollow cylinder is cut along an oblique line. A first rib 111Ra may have a shape in which a hollow cylinder is cut along an oblique line in a first direction and define a first speaker hole 111Ha. A second rib 111Rb may have a shape in which a hollow cylinder is cut along an oblique line in a second direction intersecting the first direction and define a second speaker hole 111Hb.

[0059] A buffer pad 10CS can be disposed between the bottom of the cover 10C and the top of the top housing 111. The buffer pad 10CS can buffer vibrations of the assembly of the cover 10C, the buffer pad 10CS, and the top housing 111. The buffer pad 10CS can prevent vibrations from the plurality of holes (see reference) in the top housing 111, excluding holes 111C and 111H. Figure 3 It is exposed to the outside.

[0060] Columns 111L may protrude from the bottom of the top housing 111 adjacent to the edge of the top housing 111. A plurality of columns 111L may be arranged along the edge of the top housing 111. For example, three columns 111La, 111Lb, and 111Lc may be formed in the top housing 111.

[0061] Reference Figure 8 and Figure 9 The engine bracket 14F can be located on the bottom surface of the top housing 111. The engine bracket 14F can generally have a plate shape. A plurality of fastening members Fa, such as screws, can pass through the engine bracket 14F and fasten it to the top housing 111, thereby securing the engine bracket 14F to the top housing 111. The engine bracket 14F can contain conductive materials such as metal. The engine bracket 14F can be referred to as bracket 14F.

[0062] Interface 13 may be located adjacent to the engine bracket 14F on the bottom surface of the top housing 111. A portion 131 of interface 13 may be inserted into the insertion hole 111C of the top housing 111 and the hole 10CH of the cover 10C. The portion 131 may have a shape corresponding to the plurality of holes 111C and 10CH. The portion 131 may be a touch panel 131. Interface 13 may be referred to as display unit 13, touch module 13, or first electronic component 13. Interface 13 may include a substrate 13P, a backlight unit 130, and a touch panel 131.

[0063] The substrate 13P can be a PCB (Printed Circuit Board). The substrate 13P can be a quadrilateral PCB. The substrate 13P can be located below the engine bracket 14F. Multiple fastening members Fb, such as screws, can pass through the substrate 13P and the engine bracket 14F to fasten it to the top housing 111, thereby securing the substrate 13P to the top housing 111. The interface 13 having the substrate 13P can be electrically connected to the engine bracket 14F. That is, the interface 13 can be electrically grounded to the engine bracket 14F (and vice versa). The substrate 13P can be referred to as the first substrate 13P.

[0064] The backlight unit 130 may be adjacent to the substrate 13P and the bottom surface of the top housing 111. The backlight unit 130 may be adjacent to the engine bracket 14F. The backlight unit 130 may be located in a portion of the top housing 111 surrounding the insertion hole 111C. The backlight unit 130 may be a quadrilateral unit. The backlight unit 130 may be electrically connected to the substrate 13P via a cable 13C. For example, the cable 13C may be an FFC (Flexible Flat Cable). The backlight unit 130 may include the substrate 13P and at least one light source mounted on the substrate 13P. The light source may be an LED (Light Emitting Diode). The substrate 13P may control the driving of the light source.

[0065] Touch panel 131 can be mounted on backlight unit 130. Touch panel 131 can be inserted into insertion hole 111C of top housing 111 and hole 10CH of cover 10C. Touch panel 131 can be a circular panel corresponding to a plurality of holes 111C, 10CH. Backlight unit 130 can provide light to touch panel 131. Diffuser plate can be located between backlight unit 130 and touch panel 131 to diffuse the light from backlight unit 130. Touch panel 131 can emit light from backlight unit 130. User can operate interface 13 by (soft) touching touch panel 131.

[0066] The bracket 13F can be located below the backlight unit 130. The backlight unit 130 can be disposed between the bottom of the top housing 111 and the bracket 13F. A plurality of fastening members Fc, such as screws, can pass through the bracket 13F and fasten to the top housing 111, thereby fixing the bracket 13F and a plurality of components 130, 131 of the interface 13 to the top housing 111. Some of the fastening members Fc can pass through the bracket 13F and the engine bracket 14F and fasten to the top housing 111.

[0067] A bridge 15 may be located below the top housing 111. One side of the bridge 15 may contact the outward flange 10 cm, and the other side of the bridge 15 may connect to the post 111L. The bridge 15 may be made of a conductive material such as metal. The bridge 15 may be referred to as conductor 15 or contactor 15. The bridge 15 may include a first portion 151, a second portion 152, and a third portion 153. The first portion 151 may be adjacent to the bottom surface of the top housing 111. The first portion 151 may have an overall L-shape. The second portion 152 may bend downward from the first portion 151 and may extend along the post 111L. The third portion 153 may bend from the second portion 152 and may be joined to the post 111L. The portion forming the end of the post 111L may penetrate through the third portion 153, thereby allowing the bridge 15 to be joined to the post 111L. A plurality of fastening members, such as screws, can pass through the first portion 151 of the bridge portion 15 and be fastened to the top housing 111, thereby securing the bridge portion 15 to the top housing 111. The plurality of bridge portions 15 can be adjacent to the plurality of posts 111L.

[0068] The first bridge portion 15A can be adjacent to and connected to the first pillar 111La. A first section of the first portion 151 of the first bridge portion 15A can contact the first outward flange 10CM1. A second section of the first portion 151 of the first bridge portion 15A can contact the engine bracket 14F. Therefore, the engine bracket 14F can be electrically connected to the first outward flange 10CM1 of the cover 10C via the first bridge portion 15A. That is, the engine bracket 14F can be electrically grounded to the cover 10C (and vice versa).

[0069] The second bridge portion 15B can be adjacent to and connected to the second post 111Lb. A portion of the first part 151 of the second bridge portion 15B can contact the second outward flange 10CM2 of the cover 10C. Thus, the second bridge portion 15B can be electrically connected to the second outward flange 10CM2 of the cover 10C. That is, the second bridge portion 15B can be electrically grounded to the cover 10C (and vice versa).

[0070] The third bridge portion 15C can be adjacent to and connected to the third post 111Lc. A portion of the first part 151 of the third bridge portion 15C can contact the third outward flange 10CM3 of the cover 10C. Thus, the third bridge portion 15C can be electrically connected to the third outward flange 10CM3 of the cover 10C. That is, the third bridge portion 15C can be electrically grounded to the cover 10C (and vice versa).

[0071] A portion of the engine bracket 14F can contact the fourth outward flange 10CM4. Therefore, the engine bracket 14F can be electrically connected to the fourth outward flange 10CM4 of the cover 10C. That is, the engine bracket 14F can be electrically grounded to the cover 10C (and vice versa).

[0072] Coupling pins 14P can protrude downward from the engine bracket 14F. Multiple coupling pins 14P can be spaced apart from each other. For example, four coupling pins 14P can be engaged with or formed on the engine bracket 14F.

[0073] The gasket Ga can be conductive. The gasket Ga can contain adhesive layers or substances such as tape. The gasket Ga can be referred to as conductive tape Ga. One side of the gasket Ga can be attached to the engine bracket 14F. The gasket Ga can extend from the engine bracket 14F.

[0074] The gasket Gb may be conductive. The gasket Gb may contain an adhesive layer or adhesive material such as tape. The gasket Gb may be referred to as conductive foam Gb. The gasket Gb may be located on or attached to the bottom surface of the engine bracket 14F. The gasket Gb may be located on or attached to the engine 14, as described later.

[0075] Will Figure 10 and Figure 11 and Figure 9Referring to the image, engine 14 can be located on the bottom surface of engine bracket 14F. A connecting pin 14P of engine bracket 14F can be inserted into engine 14, guiding the connection between engine 14 and engine bracket 14F. Multiple fastening components, such as screws, are fastened to the connecting pin 14P inserted into engine 14, thereby securing engine 14 to engine bracket 14F. Engine 14 can be referred to as image generation unit 14 or optical engine 14. Engine 14 may include a DMD (Digital Micromirror Device). The DMD of engine 14 can form light from a light source into an image (including a video image). Each micromirror of the DMD can correspond to a pixel of the image. The image generated by engine 14 can be output to the outside through lens 14L. Engine 14 can be referred to as third electronic component 14.

[0076] For example, the light source providing light to the engine 14 can be an LED (Light Emitting Diode). A first light source can provide blue light to the engine 14. A first heat sink 14a can be adjacent to the first light source and can have a plurality of heat dissipation fins. A second light source can provide red light to the engine 14. A second heat sink 14b can be adjacent to the second light source and can have a plurality of heat dissipation fins. A third light source can provide green light to the engine 14. A third heat sink 14c can be adjacent to the third light source and can have a plurality of heat dissipation fins. A fourth heat sink 14d can be adjacent to the third heat sink 14c and can be located on the opposite side of the first heat sink 14a. The substrate 140 of the engine 14, i.e., the PCB 140, can be surrounded by a plurality of heat sinks 14a, 14b, 14c, and 14d.

[0077] Engine 14, the light source, and lens 14L can be multiple components of projector P. Projector P can project a beam, i.e., an image (including video), onto a screen or the like.

[0078] Gasket Gb (reference) Figure 9 It can be configured between engine bracket 14F and engine 14 to electrically connect engine bracket 14F and engine 14. That is, engine 14 can be electrically grounded to engine bracket 14F through gasket Gb (and vice versa).

[0079] Reference Figure 12The LED driver 14D can be located on the bottom surface of the top housing 111. A shield 14S can be located on the bottom surface of the LED driver 14D. Multiple fastening members Fe, such as screws, can pass through the shield 14S and the LED driver 14D to fasten them to the top housing 111, thereby securing the shield 14S and the LED driver 14D to the top housing 111. The LED driver 14D can drive the light source that provides light to the engine 14. The LED driver 14D can have a PCB. The LED driver 14D can be electrically connected to the light source via a cable. The LED driver 14D can be referred to as a second electronic component 14D.

[0080] The bottom portion 14Sa of the shield 14S can cover the bottom of the LED driver 14D, and a plurality of holes can be formed in the bottom portion 14Sa. The side portion of the shield 14S (see reference) Figure 10 The 14Sb can cover the edge of the LED driver 14D, and multiple holes can be formed in the side portion 14Sb. The shield 14S protecting the LED driver 14D can contain conductive materials such as metal and can be electrically connected to the LED driver 14D. The shield 14S can be referred to as a shield canister 14S.

[0081] Gasket Ga (reference) Figure 9 It can be configured between the top housing 111 and the LED driver 14D, and can contact the side portion 14Sb of the shield 14S (see reference). Figure 26 The area Ta). Gasket Ga can electrically connect the engine bracket 14F and the shield 14S. That is, the engine bracket 14F (refer to...) Figure 9 The housing 14S can be electrically grounded via gasket Ga (and vice versa). Additionally, the housing 14S can be electrically grounded with the LED driver 14D (and vice versa). On the other hand, the side portion 14Sb of the housing 14S can contact the outward flange 10CM (see reference). Figure 26 In the area Tb), the LED driver 14D and the shield 14S can be electrically grounded with the cover 10C (and vice versa).

[0082] The fan 16 can be fixed adjacent to the engine 14 on the inside of the top housing 111. The fan 16 can be inserted into and fixed to the fan shroud 16F formed on the inside of the top housing 111. The fan 16 can cause the head 10 (see reference) to... Figure 2The airflow. Fan 16 can be referred to as cooling fan 16. First fan 16a can be adjacent to third heat sink 14c and can be fixed to first fan housing 16Fa. Second fan 16b and third fan 16c can be configured between engine 14 and housing 14S and can be fixed to second fan housing 16Fb and third fan housing 16Fc. Fan 16 can be referred to as fourth electronic component 16.

[0083] On the other hand, if the projector P is driven, then fan 16 can operate. If only speaker 19 (described later) is driven, then fan 16 may not operate. In this case, the sound quality of speaker 19 can be improved. Alternatively, fan 16 can operate even if only speaker 19 is driven.

[0084] on the other hand, Figure 12 The first component 10A is shown. The first component 10A may be referred to as the upper component 10A. The first component 10A may include a cover 10C, a buffer pad 10CS, a top housing 111, an engine bracket 14F, an interface 13, a bracket 13F, a bridge 15, an engine 14, an LED driver 14D, a shield 14S, a fan 16, etc.

[0085] Reference Figure 13 The frame 12 can generally have a bowl shape. The frame 12 may include a bottom portion 12A and a side portion 12B. The bottom portion 12A can form the bottom of the frame 12. The bottom portion 12A can be a circular portion. The side portion 12B can extend along the edge of the bottom portion 12A. The side portion 12B can extend from the bottom portion 12A towards the top housing 111 (see reference). Figure 3 and Figure 4 (bending). Multiple holes may be formed in the bottom portion 12A and the side portion 12B.

[0086] A central hole 12H may be formed in the center of the bottom portion 12A. A plurality of through holes 12HP may be formed adjacent to the central hole 12H in the bottom portion 12A.

[0087] The first hole 12H1 and the eighth hole 12H8 may be formed adjacent to the side portion 12B in the bottom portion 12A. The second hole 12H2, the third hole 12H3, and the fifth hole 12H5 may be formed in the bottom portion 12A and the side portion 12B. The fourth hole 12H4, the sixth hole 12H6, the seventh hole 12H7, and the ninth hole 12H9 may be formed in the side portion 12B.

[0088] The first opening 12Ea and the second opening 12Eb can be formed in the bottom portion 12A and the side portion 12B, and can be located at the rear of the frame 12.

[0089] An IR (Infrared) sensor 10F can be mounted adjacent to the edge of the frame 12. A mounting portion 12F for mounting the IR sensor 10F can protrude from the side portion 12B. The IR sensor 10F can sense IR signals.

[0090] An IR sensor 10R can be mounted on the frame 12 opposite to an IR sensor 10F. A mounting portion 12R for mounting the IR sensor 10R can protrude from the side portion 12B. The IR sensor 10R can sense IR signals.

[0091] The bracket 10WF can be mounted adjacent to the edge of the frame 12, and can be located between a plurality of IR sensors 10F, 10R. The bracket 10WF can be fastened to the inner side of the side portion 12B of the frame 12 by screws or other fasteners. Communication module 10W (see reference) Figure 4 The communication module 10W can be integrated into the outer surface of the bracket 10WF and can be located in the hole formed in the frame 12. The communication module 10W can face the outside of the frame 12. The communication module 10W may include a Wi-Fi module and / or a Bluetooth module. The head 10 can send and receive information with an external terminal through the communication module 10W.

[0092] Insertion holes 12S can be formed in the bottom portion 12A of the frame 12. A plurality of insertion holes 12S can be spaced apart from each other. For example, four insertion holes 12Sa, 12Sb, 12Sc, 12Sd can be adjacent to the edge of the bottom portion 12A and can be located at a plurality of vertices of the quadrilateral.

[0093] Reference Figure 14 A bar 150 may be located on the bottom portion 12A of the frame 12. The bar 150 may be made of a conductive material such as metal. The bar 150 may be referred to as a metal bar 150 or a connector 150. The frame 12 may be made of plastic. The bar 150 may include a first bar 150A and a second bar 150B. The first bar 150A may protrude from the center of the bottom portion 12A in a first direction DR1. The second bar 150B may protrude from the center of the bottom portion 12A in a second direction DR2, opposite to the first direction DR1.

[0094] The first element 150A may include a body 151a, a pin 151b, and a protrusion 151c. The body 151a may be located on the bottom portion 12A of the frame 12. The body 151a may have a straight, curved, or flat shape. For example, the body 151a may extend along an arc. The pin 151b (see reference...) Figure 25The first pin 151ba can protrude from the bottom surface of the main body 151a and can be inserted into the insertion hole 12S of the bottom part 12A. The first pin 151ba can be adjacent to one end of the main body 151a and can be inserted into the first insertion hole 12Sa (see reference). Figure 13 The second pin 151bb can be adjacent to the other end of the main body 151a and can be inserted into the second insertion hole 12Sb (see reference). Figure 13 A protrusion 151c may protrude from the top surface of the body 151a. A first protrusion 151ca may be adjacent to one end of the body 151a, and a second protrusion 151cb may be adjacent to the other end of the body 151a. A plurality of fastening members Ff, such as screws, may pass through the body 151a and be fastened to the bottom portion 12A of the frame 12, thereby securing the first strip 150A to the frame 12.

[0095] The second element 150B may include a body 152a, a pin 152b, and a protrusion 152c. The body 152a may be located on the bottom portion 12A of the frame 12. The body 152a may have a straight, curved, or flat shape. For example, the body 152a may extend along an arc. The pin 152b (see reference) Figure 25 The first pin 152ba can protrude from the bottom surface of the main body 152a and can be inserted into the insertion hole 12S of the bottom part 12A. The first pin 152ba can be adjacent to one end of the main body 152a and can be inserted into the third insertion hole 12Sc (see reference). Figure 13 The second pin 152bb can be adjacent to the other end of the main body 152a and can be inserted into the fourth insertion hole 12Sd (see reference). Figure 13 A protrusion 152c may protrude from the top surface of the body 152a. A first protrusion 152ca may be adjacent to one end of the body 152a, and a second protrusion 152cb may be adjacent to the other end of the body 152a. A plurality of fastening members Fg, such as screws, may pass through the body 152a and be fastened to the bottom portion 12A of the frame 12, thereby securing the second strip 150B to the frame 12.

[0096] A fixing portion 12L may be formed on the frame 12 adjacent to its edge. The fixing portion 12L may be formed on the top surface of the side portion 12B of the frame 12. The fixing portion 12L may protrude from the top surface of the side portion 12B. A hole may be formed in the fixing portion 12L. The fixing portion 12L may be connected to the post 111L of the top housing 111 (see reference). Figure 12 Corresponding to. A plurality of fixed parts 12La, 12Lb, 12Lc can be aligned with a plurality of columns 111La, 111Lb, 111Lc respectively.

[0097] Gasket G10 may be conductive. Gasket G10 may contain an adhesive layer or adhesive material such as tape. Gasket G10 may be referred to as conductive tape G10. One side of gasket G10 may be attached to the first strip 150A. Gasket G10 may extend from the first strip 150A, and a portion of gasket G10 may be located on the first fixing portion 12La. Gasket G10 may be attached to the first fixing portion 12La.

[0098] A plurality of gaskets G11, G12, and G13 may be conductive. The plurality of gaskets G11, G12, and G13 may include an adhesive layer or adhesive material such as tape. The plurality of gaskets G11, G12, and G13 may be referred to as a plurality of conductive tapes G11, G12, and G13. The plurality of gaskets G11, G12, and G13 may have a Y-shape. One side of the first gasket G11 may be attached to a first strip 150A and may extend from the first strip 150A. One side of the second gasket G12 may be attached to a second strip 150B and may extend from the second strip 150B. A third gasket G13 may be attached to the first gasket G11 and the second gasket G12, and a portion of the third gasket G13 may be located on the third fixing portion 12Lc. The third gasket G13 may be attached to the third fixing portion 12Lc. Alternatively, the plurality of gaskets G11, G12, G13 may be composed of one or two gaskets. Alternatively, one of the first gasket G11 and the second gasket G12 may be omitted.

[0099] Reference Figure 15 The DMD driver 17 can be located on the strip 150. A plurality of first protrusions 151ca, 152ca of the strip 150 can pass through the DMD driver 17. The DMD driver 17 can be electrically connected to the strip 150. A plurality of fastening members Fh, such as screws, can pass through the DMD driver 17 and fasten it to the bottom portion 12A of the frame 12, thereby securing the DMD driver 17 to the frame 12.

[0100] DMD driver 17 can drive the DMD (Digital Micromirror Device) of engine 14, see reference Figure 12 The DMD driver 17 may have a PCB. The DMD driver 17 can be electrically connected to the DMD via a cable. The DMD driver 17 may be referred to as the first board 17, the first substrate 17, or the first PCB 17.

[0101] Reference Figure 16 and Figure 17 The DMD driver 17 may include a spring pin 17P, a first connector 171, a second connector 172, a third connector 173, and a board connector 170.

[0102] Board connector 170 can be mounted on the top surface of DMD drive 17.

[0103] The spring pin 17P can be mounted on the bottom surface of the DMD driver 17 and can pass through the through hole 12HP formed in the frame 12 (see reference). Figure 13 The spring pin 17P can be referred to as connecting pin 17P, terminal 17P, or connector 17P.

[0104] The first connector 171 can be mounted on the bottom surface of the DMD driver 17 and can be connected to the first hole 12H1 formed in the frame 12 (see reference). Figure 13 Corresponding configuration. The first connector 171 can be the DMD of engine 14 (refer to...). Figure 12 Connector for connection.

[0105] The second connector 172 can be mounted on the bottom surface of the DMD driver 17 and can be connected to the second hole 12H2 formed in the frame 12 (see reference). Figure 13 The corresponding configuration. The second connector 172 can be fan 16 (see...). Figure 12 Connector for connection.

[0106] The third connector 173 can be mounted on the bottom surface of the DMD driver 17 and can be connected to the third hole 12H3 formed in the frame 12 (see reference). Figure 13 Corresponding configuration. The third connector 173 can be a distance sensor 10S (refer to...) Figure 2 Connector for connection.

[0107] The DMD driver 17 can cover the bottom portion 12A of the frame 12, and the plurality of connectors 171, 172, 173, 17P of the DMD driver 17 can be configured to correspond to the plurality of holes of the bottom portion 12A.

[0108] The motherboard 18 may cover the DMD driver 17. Multiple fastening members Fi, such as screws, may pass through the motherboard 18 and fasten it to the bottom portion 12A of the frame 12, thereby securing the motherboard 18 to the frame 12. The bottom surface of the motherboard 18 may be spaced apart from the top surface of the DMD driver 17. The motherboard 18 may be offset from the DMD driver 17 towards the side portion 12B of the frame 12, and the motherboard 18 may cover at least a portion of the multiple holes in the side portion 12B. Thus, multiple connectors mounted on the bottom surface of the motherboard 18 may be configured to correspond to the multiple holes in the side portion 12B. The motherboard 18 may be referred to as a second board 18, a second substrate 18, or a second PCB 18.

[0109] On the other hand, one of the first substrate 17 and the second substrate 18 may be omitted. One substrate may be provided as both a motherboard and a DMD driver. Alternatively, more than one substrate in addition to the first substrate 17 and the second substrate 18 may be mounted on the frame 12.

[0110] The motherboard 18 may have a PCB. The motherboard 18 may have a System-on-Chip (SoC). The motherboard 18 can control the head 10. The motherboard 18 can be electrically connected to various electronic components of the head 10 via cables. The motherboard 18 may include a first connector 181, a second connector 182, a third connector 183, a fourth connector 184, a fifth connector 185, a sixth connector 186, a seventh connector 187, an eighth connector 188, a ninth connector 189, and a board connector 180.

[0111] Board connector 180 can be mounted on the bottom surface of motherboard 18. Board connector 180 of motherboard 18 can be coupled to board connector 170 of DMD driver 17, thereby allowing motherboard 18 and DMD driver 17 to be electrically connected.

[0112] The first connector 181 can be mounted on the top surface of the motherboard 18. The first connector 181 can be an LED driver 14D (see reference). Figure 12 Connector for connection.

[0113] The second connector 182 can be mounted on the top surface of the motherboard 18. The second connector 182 can be a connector for connecting a 10W communication module. The second connector 182 can also be a connector for connecting a WIFI module.

[0114] The third connector 183 can be mounted on the bottom surface of the motherboard 18 and can be configured to correspond to the third hole 12H3 formed in the frame 12. The third connector 183 can be the interface 13 (see reference). Figure 8 Connector for connection.

[0115] The fourth connector 184 can be mounted on the bottom surface of the motherboard 18 and can be configured to correspond to the fourth hole 12H4 formed in the frame 12. The fourth connector 184 can be a focusing motor 10M (see reference). Figure 10 Connector for connection.

[0116] The fifth connector 185 can be mounted on the bottom surface of the motherboard 18 and can be configured to correspond to the fifth hole 12H5 formed in the frame 12. The fifth connector 185 can be an HDMI terminal, which can be referred to as a port. Alternatively, the fifth connector 185 can be other types of terminals.

[0117] The sixth connector 186 can be mounted on the bottom surface of the motherboard 18 and can be configured to correspond to the fifth hole 12H5 formed in the frame 12. The sixth connector 186 can be a USB-C type (or other type of USB) terminal, which can be referred to as a port. Alternatively, the sixth connector 186 can be other types of terminals.

[0118] One of the fifth connector 185 and the sixth connector 186 may be omitted. In addition to the fifth connector 185 and the sixth connector 186, more than one terminal may be provided.

[0119] The seventh connector 187 can be mounted on the top surface of the motherboard 18. The seventh connector 187 can be a speaker 19 (see reference). Figure 18 Connector for connection.

[0120] The eighth connector 188 can be mounted on the top surface of the motherboard 18. The eighth connector 188 can be a connector for connecting the IR sensor 10F.

[0121] The ninth connector 189 can be mounted on the top surface of the motherboard 18. The ninth connector 189 can be a connector for connecting the IR sensor 10R.

[0122] Reference Figure 17 and Figure 18 An opening 12E may be formed in the frame 12. The opening 12E may be formed by penetrating the bottom portion 12A and the side portion 12B of the frame 12. The opening 12E may be referred to as a hole 12E. The first opening 12Ea and the second opening 12Eb may be spaced apart from each other.

[0123] A fixing pin 12P may be formed in the frame 12. The fixing pin 12P may protrude from the top surface of the bottom portion 12A and / or the top surface of the side portion 12B. A plurality of fixing pins 12P may be formed around the opening 12E.

[0124] The speaker 19 can be configured to correspond to the opening 12E. The speaker housing 190 can generally have a Y-shape. The speaker housing 190 can be referred to as an enclosure 190, a cover 190, or a shell 190. The retainer 190H can be combined with the speaker housing 190 and can generally have a ring shape. The retainer 190H can be elastic. The diameter of the hole in the retainer 190H can be smaller than the diameter of the retaining pin 12P. A plurality of retainers 190H can be arranged along the lateral side of the speaker housing 190. A plurality of retaining pins 12P of the frame 120 can be inserted into and secured to a plurality of retainers 190H of the speaker 19. Thus, the speaker 19 can be combined with the frame 12.

[0125] on the other hand, Figure 18 The second component 10B is shown. The second component 10B may be referred to as the lower component 10B. The second component 10B may include a frame 12, a bar 150, a DMD driver 17, a motherboard 18, a speaker 19, etc.

[0126] Reference Figure 19 and Figure 20 The speaker 19 can be referred to as speaker assembly 19. The speaker 19 can be connected to an external terminal via communication module 10W. The speaker 19 may include a speaker box 190, a first speaker unit 191, a second speaker unit 192, a first passive radiator 193, and a second passive radiator 194.

[0127] The first loudspeaker unit 191 may be located in the first hole 1901 of the loudspeaker housing 190. The first loudspeaker unit 191 may include a loudspeaker frame 191F, a yoke 191a, a magnet 191b, a plate 191c, a bobbin 191d, a coil, a diaphragm 191g, a damper 191h, and an edge 191i.

[0128] The speaker frame 191F may have a quadrilateral frame shape corresponding to the first hole 1901. The speaker frame 191F may be located on the first recess 1901R forming the first hole 1901. For example, four screws can secure the four corners of the speaker frame 191F to the first recess 1901R. The fixing portion 191FF of the speaker frame 191F may protrude into the internal space 190S of the speaker housing 190 and be located within the internal space 190S.

[0129] The magnetic yoke 191a can be located inside the speaker box 190, in the internal space 190S, and can be fixed to the fixing part 191FF of the speaker frame 191F. The magnetic yoke 191a can have a cup shape.

[0130] Magnet 191b can be disposed inside yoke 191a. Magnet 191b can be cylindrical. Plate 191c can be located on magnet 191b and can be circular.

[0131] The bobbin 191d can be located in the air gap between the plate 191c and the yoke 191a, and can have a hollow cylinder shape. A coil can be formed on the outer circumferential surface of the bobbin 191d, and can be called a voice coil. The coil can be connected to tin-plated copper wire.

[0132] A diaphragm 191g can be attached to the upper part of the spool 191d. The diaphragm 191g can be conical in shape. Alternatively, the diaphragm 191g can also be dome-shaped or plate-shaped. A conical diaphragm 191g can be referred to as a cone diaphragm 191g. A dust cover 191gg can cover the diaphragm 191g and the spool 191d. One side of a flexible damper 191h can be fixed to the mounting part 191FF of the speaker frame 191F, and the other side of the damper 191h can be fixed to the spool 191d. The damper 191h can have a wave-like shape to support the vibration of the diaphragm 191g.

[0133] Edge 191i connects the edge of diaphragm 191g to speaker frame 191F. Edge 191i can be elastic to support the vibration of diaphragm 191g. Edge 191i can be ring-shaped or have an inverted U-shaped cross-section. Edge 191i can be referred to as wrap edge 191i.

[0134] If magnetic field lines are formed in the air gap between magnet 191b and yoke 191a and current flows in the coil formed in the shaft 191d, a Lorentz force may be generated. The magnitude of the Lorentz force can be proportional to the magnitude of the magnetic field lines (magnetic flux density), the amount of current, and the length of the wound coil, and the direction of the force can be perpendicular to the plane formed by the magnetic flux density and the current.

[0135] Therefore, the diaphragm 191g of the first speaker unit 191 can vibrate up and down. Corresponding to the vibration of the diaphragm 191g, the air inside the speaker housing 190 also resonates, thereby changing its pressure.

[0136] The second speaker unit 192 may be located in the second hole 1902 of the speaker housing 190. The second speaker unit 192 may include a speaker frame 192F, a yoke 192a, a magnet 192b, a plate 192c, a spool 192d, a coil, a diaphragm 192g, a damper 192h, and an edge 192i.

[0137] The speaker frame 192F may have a quadrilateral frame shape corresponding to the second hole 1902. The speaker frame 192F may be located on the second recess 1902R forming the second hole 1902. For example, four screws can secure the four corners of the speaker frame 192F to the second recess 1902R. The fixing portion 192FF of the speaker frame 192F may protrude into the internal space 190S of the speaker housing 190 and be located within the internal space 190S.

[0138] The magnetic yoke 192a can be located inside the speaker box 190, in the internal space 190S, and can be fixed to the fixing part 192FF of the speaker frame 192F. The magnetic yoke 192a can have a cup shape.

[0139] Magnet 192b can be disposed inside yoke 192a. Magnet 192b can be cylindrical. Plate 192c can be located on magnet 192b and can be circular.

[0140] The bobbin 192d can be located in the air gap between the plate 192c and the yoke 192a, and can have a hollow cylindrical shape. A coil can be formed on the outer circumference of the bobbin 192d, and can be called a voice coil. The coil can be connected to tin-plated copper wire.

[0141] A diaphragm 192g can be attached to the upper part of the spool 192d. The diaphragm 192g can be conical in shape. Alternatively, the diaphragm 192g can also be dome-shaped or plate-shaped. A conical diaphragm 192g can be referred to as a cone diaphragm 192g. A dust cover 192gg can cover the diaphragm 192g and the spool 192d. One side of a resilient damper 192h can be fixed to the mounting part 192FF of the speaker frame 192F, and the other side of the damper 192h can be fixed to the spool 192d. The damper 192h can have a wave-like shape to support the vibration of the diaphragm 192g.

[0142] Edge 192i connects the edge of diaphragm 192g to speaker frame 192F. Edge 192i can be elastic to support the vibration of diaphragm 192g. Edge 192i can be ring-shaped or have an inverted U-shaped cross-section. Edge 192i can be referred to as wrap edge 192i.

[0143] If magnetic field lines are formed in the air gap between magnet 192b and yoke 192a, and current flows in the coil formed in the shaft 192d, a Lorentz force may be generated. The magnitude of the Lorentz force can be proportional to the magnitude of the magnetic field lines (magnetic flux density), the amount of current, and the length of the wound coil, and the direction of the force can be perpendicular to the plane formed by the magnetic flux density and the current.

[0144] Therefore, the diaphragm 192g of the second speaker unit 192 can vibrate up and down. Corresponding to the vibration of the diaphragm 192g, the air inside the speaker housing 190 also resonates, thereby changing its pressure.

[0145] The first speaker unit 191 and the second speaker unit 192 can be spaced apart from each other in one direction Dra. The center line 19L of the speaker 19 can pass through the center of the speaker 19 and be orthogonal to one direction DRa. The four corners of each of the plurality of speaker frames 191F and 192F in the shape of a quadrilateral frame can be located at different distances from the center line 19L. With the top surface 190U of the speaker box 190 as a reference, the farther the four corners of each of the plurality of speaker frames 191F and 192F are from the center line 19L, the lower their position. Corresponding to the plurality of speaker frames 191F and 192F, the height of the plurality of recesses 1901R and 1902R provided for the plurality of speaker frames 191F and 192F can also be different according to their respective positions.

[0146] The speaker frame 191F of the first speaker unit 191 may include a first corner 191Fa, a second corner 191Fb, a third corner 191Fc, and a fourth corner 191Fd. The first corner 191Fa may be located at a first distance D1a from the center line 19L and at a first depth 190U from the top surface of the speaker housing 190. The first depth may be 0 or greater than 0. The second corner 191Fb may be located at a second distance D1b from the center line 19L greater than the first distance D1a, and at a second depth 190U from the top surface of the speaker housing 190 greater than the first depth. The third corner 191Fc may be located at a third distance D1c from the center line 19L greater than the second distance D1b, and at a third depth 190U from the top surface of the speaker housing 190 greater than the second depth. The fourth corner 191Fd can be located at a position greater than the third distance D1c by the fourth distance D1d from the center line 19L, and can be located at a position greater than the third depth by the fourth depth from the top surface 190U of the speaker box 190.

[0147] The speaker frame 192F of the second speaker unit 192 may include a first corner 192Fa, a second corner 192Fb, a third corner 192Fc, and a fourth corner 192Fd. The first corner 192Fa may be located at a first distance D2a from the center line 19L and at a first depth 190U from the top surface of the speaker housing 190. The first depth may be 0 or greater than 0. The second corner 192Fb may be located at a second distance D2b from the center line 19L greater than the first distance D2a, and at a second depth 190U from the top surface of the speaker housing 190 greater than the first depth. The third corner 192Fc may be located at a third distance D2c from the center line 19L greater than the second distance D2b, and at a third depth 190U from the top surface of the speaker housing 190 greater than the second depth. The fourth corner 192Fd can be located at a position greater than the third distance D2c from the center line 19L, and can be located at a position greater than the third depth from the top surface 190U of the speaker box 190.

[0148] The first distance D1a and the first distance D2a can be the same, the second distance D1b and the second distance D2b can be the same, the third distance D1c and the third distance D2c can be the same, and the fourth distance D1d and the fourth distance D2d can be the same.

[0149] Therefore, the first speaker unit 191 and the second speaker unit 192 can be configured at an angle relative to the speaker housing 190. As a result, the sound quality of the speaker 19 can be improved.

[0150] Reference Figure 20 and Figure 21 A passive radiator 190P can be mounted on the speaker housing 190. A plurality of speaker units 191 and 192 can be mounted on the top of the speaker housing 190, and the passive radiator 190P can be mounted on the bottom of the speaker housing 190. The passive radiator 190P, together with the plurality of speaker units 191 and 192, can seal the internal space 190S of the speaker housing 190. The passive radiator 190P may include a first passive radiator 193 and a second passive radiator 194. The first passive radiator 193 can be configured corresponding to the first speaker unit 191. The second passive radiator 194 can be configured corresponding to the second speaker unit 192.

[0151] On the other hand, the plurality of loudspeaker units 191, 192 can be referred to as a plurality of active loudspeaker units 191, 192, a plurality of active drivers 191, 192, or active transducers 191, 192.

[0152] The first passive radiator 193 may include a diaphragm 193a and an edge 193b. The diaphragm 193a may be located in the first hole 1903 of the speaker housing 190 and may have a circular shape. The edge 193b may extend along the circumference of the diaphragm 193a and may connect the diaphragm 193a to the speaker housing 190. The edge 193b may be elastic and may support the vibration of the diaphragm 193a. The edge 193b may have a ring shape and may have an inverted U-shaped cross-section.

[0153] The second passive radiator 194 may include a diaphragm 194a and an edge 194b. The diaphragm 194a may be located in the second hole 1904 of the speaker housing 190 and may have a circular shape. The edge 194b may extend along the circumference of the diaphragm 194a and may connect the diaphragm 194a to the speaker housing 190. The edge 194b may be elastic and may support the vibration of the diaphragm 194a. The edge 194b may have a ring shape and may have an inverted U-shaped cross-section.

[0154] Thus, the passive radiator 190P can vibrate and emit (bass) sound in response to the pressure changes of the internal air of the speaker housing 190 caused by the operation of the plurality of speaker units 191, 192. The first passive radiator 193 can face the first opening 12Ea of the frame 12, and the sound from the first passive radiator 193 can pass through the first opening 12Ea. For example, the slope of the first passive radiator 193 relative to the bottom portion 12A can be greater than the slope of the first opening 12Ea. The second passive radiator 194 can face the second opening 12Eb of the frame 12, and the sound from the second passive radiator 194 can pass through the second opening 12Eb. For example, the slope of the second passive radiator 194 relative to the bottom portion 12A can be greater than the slope of the second opening 12Eb.

[0155] Reference Figure 22 and Figure 23 The bottom housing 112 may include a bottom portion 112A and a side portion 112B. The bottom portion 112A may form the bottom of the bottom housing 112. The bottom portion 112A may have a funnel shape. The width of the bottom portion 112A may decrease towards its lower end. A central hole 112H may be formed in the bottom portion 112A. The side portion 112B may extend along the edge of the bottom portion 112A. The side portion 112B may bend upward from the bottom portion 112A.

[0156] The second component 10B can be accommodated inside the bottom housing 112. The second component 10B can cover the central hole 112H of the bottom housing 112. The bottom hole 112R can be formed in the bottom portion 112A and can connect with the passive radiator 190P of the speaker 19 (see reference). Figure 21 The portion forming the bottom hole 112R can be referred to as a grille. The first bottom hole 112Ra can be configured to correspond to the first passive radiator 193. The second bottom hole 112Rb can be configured to correspond to the second passive radiator 194. Thus, the sound from the passive radiator 190P of the speaker 19 can be output to the outside of the head 10 through the bottom hole 112R.

[0157] A plurality of support portions 112L may be formed on the bottom portion 112A of the bottom housing 112 and may be aligned with a plurality of fixing portions 12L of the second component 10B. The plurality of fixing portions 12L may be located on the plurality of support portions 112L.

[0158] On the other hand, a plurality of insertion holes 112Ga, 112Gb can be formed on the bottom portion 112A of the bottom housing 112. Insertion hole 112Ga can connect to the fifth connector 185 of the motherboard 18 (see reference). Figure 16 The fifth connector 185 can be an HDMI terminal, also known as a port. The 112Gb insertion hole can be connected to the sixth connector 186 of the motherboard 18 (see reference). Figure 16 Corresponding configuration. The sixth connector 186 can be a USB-C type (or other types of USB) terminal, which can be referred to as a port.

[0159] Reference Figures 23 to 25 The first component 10A can cover the second component 10B. The projector P of the first component 10A can be configured in the semi-circular area of ​​the head 10, and the fan 16 of the first component 10A can be configured in the remaining semi-circular area of ​​the head 10. The first speaker unit 191 can be connected through the first speaker hole 111Ha of the top housing 111 (see reference). Figure 12 )Cover 10C (refer to) Figure 2 The second speaker unit 192 can be accessed through the second speaker hole 111Hb of the top housing 111 (see reference). Figure 12 )Cover 10C (refer to) Figure 2 Thus, the sound from the plurality of speaker units 191, 192 can be output to the outside of the head 10 through the cover 10C. The speaker 19 having the plurality of speaker units 191, 192 can constitute a stereo speaker.

[0160] On the other hand, the speaker 19 is attached to the frame 12 and the projector P is attached to the top housing 111, thereby preventing or reducing the transmission of vibrations from the speaker 19 to the projector P.

[0161] A protrusion 112K may protrude from the inner surface of the side portion 112B of the bottom housing 112. A plurality of protrusions 112K may be spaced apart from each other in the circumferential direction of the side portion 112B.

[0162] The connecting portion 111K may protrude from the bottom of the top housing 111 adjacent to the edge of the top housing 111. The connecting portion 111K may have a hole or groove for the protrusion 112K to engage. A plurality of connecting portions 111K may be configured to correspond to a plurality of protrusions 112K.

[0163] Thus, the joint 111K hooks into the protrusion 112K, thereby allowing the first component 10A to be attached to the bottom housing 112.

[0164] The plurality of posts 111L of the first component 10A can be located on the plurality of fixing parts 12L. The third part 153 of the bridge part 15 can be disposed between the posts 111L and the fixing parts 12L. Fastening members Fj such as screws can pass through the plurality of supporting parts 112L (see reference). Figure 22 The fastening member Fj is fastened to the plurality of posts 111L by a plurality of fixing parts 12L. The fastening member Fj may have a cap covering the screw head, the cap forming the outer surface of the fastening member Fj.

[0165] Thus, the bottom housing 112 and the second component 10B are combined with the first component 10A, thereby allowing the head 10 to be assembled.

[0166] Will Figure 24 and Figure 9 and Figure 17 Referring to the above, the gasket G10 can be disposed between the first fixing part 12La and the third part 153 of the first bridge part 15A. The gasket G10 can contact and be electrically connected to the first bridge part 15A. Thus, the cover 10C having the first outward flange 10CM1 in contact with the first bridge part 15A can be electrically grounded to the motherboard 18 through the first bridge part 15A, the gasket G10, the first strip 150A, and the DMD driver 17 (and vice versa).

[0167] Similarly, the cover 10C, which has a third outward flange 10CM3 in contact with the third bridge portion 15C, can be electrically grounded to the motherboard 18 through the third bridge portion 15C, a plurality of gaskets G11, G12, G13, a plurality of strips 150A, 150B, and the DMD driver 17 (and vice versa).

[0168] Will Figure 25 and Figure 2 For reference, the 14L lens can be used in engine 14 (see reference). Figure 12 The beam generated in the DMD (Digital Micromirror Device) is the image projected onto a plane such as a screen, wall, or ceiling. Lens 14L can be adjacent to the inner surface of the side portion 112B of the bottom housing 112. Cap 14PC can be located in front of lens 14L. Cap 14PC can be located between lens 14L and side portion 112B, and can be combined with side portion 112B. Cap 14PC can face the hole formed in side portion 112B (see reference). Figure 2 and Figure 4 The cap 14PC can be funnel-shaped. The lens 14L and the cap 14PC can protrude to the outside of the head 10. The cap 14PC can guide the path of light (image) through the lens 14L. The engine 14, the light source providing light to the engine 14, the lens 14L, and the cap 14PC can be a plurality of components of the projector P.

[0169] Focusing motor 10M (reference) Figure 23 The focusing motor 10M can be adjacent to the lens 14L. The focusing motor 10M can focus on the engine 14 (see reference) by adjusting the lens 14L. Figure 12 The focusing motor 10M can operate automatically, controlling the focus of the image generated in the projector P. Conversely, an accelerometer sensor can be mounted inside the head 10. The focusing motor 10M and the accelerometer sensor can be multiple components of the projector P.

[0170] The distance sensor 10S can be adjacent to the lens 14L. The distance sensor 10S can be connected via the bracket 10SF (see reference). Figure 4 The distance sensor 10S is mounted to the side portion 112B of the bottom housing 112. The distance sensor 10S can be positioned within a hole formed in the side portion 112B (see reference). Figure 2 and Figure 4 The distance sensor 10S can be located between the cap 14PC and the first side hole 112VBa. The distance sensor 10S can be a TOF (Time of Flight) sensor. The distance sensor 10S can measure the distance between an object in front of the distance sensor 10S and the distance sensor 10S.

[0171] An IR (Infrared) sensor 10F can be adjacent to a lens 14L. The IR sensor 10F can be opposite to a distance sensor 10S with the lens 14L as a reference. The IR sensor 10F can sense IR signals. A cover 10FC can be installed in the hole at the front of the side portion 112B of the bottom housing 112 (see reference). Figure 2 and Figure 4The cover 10FC can cover the IR sensor 10F. The IR sensor 10F can be referred to as the front IR sensor 10F. The remote controller can wirelessly communicate with the IR sensor 10F. That is, the IR sensor 10F can transmit and receive infrared signals with the remote controller. On the other hand, the IR indicator 10FD can be exposed to the outside of the head 10 adjacent to the cover 10FC, and can indicate to the user by light whether the IR sensor 10F has sensed an IR signal. The IR indicator 10FD can also be omitted.

[0172] IR sensor 10R can be opposite to IR sensor 10F. IR sensor 10R can sense IR signals. Cover 10RC can be installed in the hole at the rear of the side portion 112B of the bottom housing 112 (see reference). Figure 4 and Figure 25 The cover 10RC can cover the IR sensor 10R. The IR sensor 10R can be referred to as the rear IR sensor 10R. The remote controller can wirelessly communicate with the IR sensor 10R. That is, the IR sensor 10R can transmit and receive infrared signals with the remote controller. An IR indicator can be exposed to the outside of the head 10 adjacent to the cover 10RC, and can indicate to the user, through light, whether the IR sensor 10R has sensed an IR signal. The IR indicator can also be omitted.

[0173] A recess 112G can be recessed from the bottom portion 112A of the bottom housing 112. A plurality of holes 112Ga, 112Gb can be formed in the recess 112G. The fifth connector 185 of the motherboard 18 can be exposed to the outside of the head 10 through the hole 112Ga. For example, a user can connect an HDMI cable to the fifth connector 185. The sixth connector 186 of the motherboard 18 can be exposed to the outside of the head 10 through the hole 112Gb. For example, a user can connect a USB to the sixth connector 186. One side of the cover JC can be fixed to the recess 112G. The other side of the cover JC can be detachably hooked into the recess 112G. The user can use the cover JC to cover the fifth connector 185 and the sixth connector 186 or to leave the fifth connector 185 and the sixth connector 186 open. The cover JC can be referred to as a detachable cover JC.

[0174] Vent holes 112V may be formed in the bottom portion 112A and / or the side portion 112B. The portion with the vent holes 112V may be referred to as a grille. (Refer to fan 16) Figure 23 The airflow formed can pass through the ventilation hole 112V.

[0175] Ventilation port 112V may include bottom port 112VA and side port 112VB.

[0176] Bottom hole 112VA can be formed in bottom portion 112A. Bottom hole 112VA can be formed in front portion of bottom portion 112A. Bottom hole 112R can be formed in rear portion of bottom portion 112A.

[0177] A side hole 112VB can be formed in the side portion 112B. The side hole 112VB can be formed at the front of the side portion 112B. A first side hole 112VBa can be formed on the right side of the side portion 112B. A second side hole 112VBb can be formed on the left side of the side portion 112B.

[0178] Reference Figure 26 and Figure 27 One end of the first cable C31 can be electrically connected to the first connector 171 of the DMD driver 17. The first cable C31 can pass through the slit 17H of the DMD driver 17 and the slit 18H of the motherboard 18 (see reference). Figure 16 The other end of the first cable C31 can be electrically connected to the DMD of engine 14. The first cable C31 can be FFC (Flexible Flat Cable) or other types of cable.

[0179] One end of the second cable C32 can be electrically connected to the first fan 16a. The second cable C32 can be bent from the right side of the DMD driver 17 towards the rear of the DMD driver 17. The other end of the second cable C32 can be electrically connected to the second connector 172 of the DMD driver 17. The second cable C32 can be FFC or other types of cable.

[0180] One end of the third cable C33 can be electrically connected to the distance sensor 10S. The third cable C33 can pass through the third hole 12H3 from the outer side of the side portion 12B of the frame 12. The other end of the third cable C33 can be electrically connected to the third connector 173 of the DMD driver 17. The third cable C33 can be FFC or other types of cable.

[0181] One end of the fourth cable C34 can be electrically connected to the focusing motor 10M. The fourth cable C34 can pass through the fourth hole 12H4 from the outer side of the side portion 12B of the frame 12. The other end of the fourth cable C34 can be electrically connected to the fourth connector 184 of the motherboard 18. The fourth cable C34 can be FFC or other types of cables.

[0182] One end of the fifth cable C35 can be electrically connected to the IR sensor 10F. The fifth cable C35 can pass near the third fan 16c. The other end of the fifth cable C35 can be electrically connected to the eighth connector 188 on the motherboard 18. The fifth cable C35 can be FFC or other types of cables.

[0183] One end of the sixth cable C36 can be electrically connected to the first connector 181 of the motherboard 18. The sixth cable C36 can be bent backwards towards the rear of the motherboard 18 and pass through the fifth hole 125H. The sixth cable C36 can be inserted from the outer side of the side portion 12B into the space between the frame 12 and the shield 14S. The other end of the sixth cable C36 can be connected to the connector 14DC of the LED driver 14D (see reference). Figure 12 Electrical connection. The sixth cable, C36, can be FFC or other types of cable.

[0184] One end of the seventh cable C37 can be electrically connected to connector 14DL of the LED driver 14D. The seventh cable C37 can pass over the second fan 16b and the third fan 16c toward the engine 14. A light source that provides light to the DMD of the engine 14 can be mounted on a substrate, and a connector can be mounted on said substrate. The first connector 14La can be a connector for a substrate on which a light source providing blue light is mounted. The second connector 14Lb can be a connector for a substrate on which a light source providing red light is mounted. The third connector 14Lc can be a connector for a substrate on which a light source providing green light is mounted. A first portion of the seventh cable C37 can be electrically connected to the first connector 14La. A second portion of the seventh cable C37 can be electrically connected to the second connector 14Lb. A third portion of the seventh cable C37 can be electrically connected to the third connector 14Lc. The seventh cable C37 can be FFC or other types of cable.

[0185] Reference Figure 28 One end of the eighth cable C38 can be electrically connected to the substrate 13P of the interface 13. The eighth cable C38 can pass near the heat sink 14a and can pass through the third hole 12H3 from the outer side of the side portion 12B. The other end of the eighth cable C38 can be electrically connected to the third connector 183 of the motherboard 18. The eighth cable C38 can be FFC or other types of cables.

[0186] On the other hand, interface 13 can be electrically grounded to motherboard 18 via the eighth cable C38 (and vice versa).

[0187] Reference Figure 29 One end of the ninth cable C39 can be electrically connected to the IR sensor 10R. The ninth cable C39 can be inserted from the mounting part 12R into the space between the speaker 19 and the frame 12. The other end of the ninth cable C39 can be electrically connected to the ninth connector 189 of the mainboard 18. The ninth cable C39 can be FFC or other types of cable.

[0188] One end of the tenth cable C40 can be electrically connected to the speaker 19. The tenth cable C40 can extend from the speaker 19 toward the seventh connector 187 of the motherboard 18. The other end of the tenth cable C40 can be electrically connected to the seventh connector 187 of the motherboard 18.

[0189] Refer again Figure 17 One end of the eleventh cable C41 can be electrically connected to the communication module 10W. For example, the WIFI module of the communication module 10W can be electrically connected to the eleventh cable C41. The eleventh cable C41 can extend from the communication module 10W towards the second connector 182 of the motherboard 18. The other end of the eleventh cable C41 can be electrically connected to the second connector 182 of the motherboard 18.

[0190] Reference Figure 30 The rod 30 can extend vertically and connect the head 10 and the base 40. A support plate 31 can be attached to the upper end of the rod 30 and can be attached to the head 10. A retainer 32 can be attached to the lower end of the rod 30 and can be attached to the base 40. The rod 30 can be made of a metal such as aluminum (Al).

[0191] As described above and below, the head 10 can be electrically grounded via the support plate 31, the rod 30, and the base 40 (and vice versa). That is, the grounding of the projection device 1 is enhanced (i.e., the grounding area is expanded), thereby minimizing the failure and damage to the electronic components of the projection device 1 caused by static electricity E.

[0192] Reference Figure 31 and Figure 32 The substrate 39P, the insulating layer 39N, and the support plate 31 can be arranged sequentially above the bottom cover 39C.

[0193] The bottom cover 39C can generally have a dome shape that bulges downwards. A recess 39CG can be recessed from the bottom surface of the bottom cover 39C. The recess 39CG can extend from the center of the bottom cover 39C towards its edge. The recess 39CG can be U-shaped. A hole 39CH can be formed in the recess 39CG. The hole 39CH can extend along the recess 39CG. The width of the hole 39CH can gradually decrease from the center of the bottom cover 39C towards its edge.

[0194] The second cable C2 can pass through the hole 39CH in the bottom cover 39C. A portion of the second cable C2 can be located on the bottom cover 39C. The cable connector C20 can be attached to the end of the second cable C2.

[0195] The wall 39CW can protrude from the top surface of the bottom cover 39C and can be located between the hole 39CH of the bottom cover 39C and the edge of the bottom cover 39C. The wall 39CW can form a closed loop. Alternatively, the wall 39CW can also form an open loop. The wall 39CW can be an annular wall 39CW. The second cable C2 can be disposed inside the wall 39CW. That is, the wall 39CW can form a space for the second cable C2 and can prevent the second cable C2 from detaching.

[0196] A connecting portion 39CA may protrude from the top surface of the bottom cover 39C and may be disposed between the wall 39CW of the bottom cover 39C and the edge of the bottom cover 39C. A plurality of connecting portions 39CA may be disposed along the wall 39CW. A guide pin 39CB may protrude from the top surface of the bottom cover 39C. The guide pin 39CB may be adjacent to a connecting portion 39CA. For example, two guide pins 39CB may be adjacent to two of the four connecting portions 39CA, respectively.

[0197] The substrate 39P can generally have a circular plate shape including a plurality of holes. The diameter of the substrate 39P can correspond to the diameter of the bottom cover 39C. The substrate 39P can be a PCB. Terminals 39T can be mounted on the top surface of the substrate 39P. A pair of terminals 39T can be adjacent to each other and spaced apart. Connector 39U (see reference) Figure 34 It can be mounted on the bottom surface of substrate 39P. Multiple pins 39UP of connector 39U can penetrate substrate 39P. Hole 39PH can be formed in substrate 39P. Hole 39PH can be formed in the center of substrate 3P.

[0198] Furthermore, substrate 39P can be located on bottom cover 39C. A plurality of coupling portions 39CA of bottom cover 39C can support substrate 39P. The plurality of coupling portions 39CA of bottom cover 39C can be inserted into a plurality of holes 39PA of substrate 39P. A plurality of guide pins 39CB of bottom cover 39C can be inserted into a plurality of holes 39PB of substrate 39P. Connector 39U of substrate 39P (see reference). Figure 34 The second cable C2 can be located inside the wall 39CW of the bottom cover 39C. The cable connector C20 can be coupled to the connector 39U of the substrate 39P, thereby allowing the second cable C2 to be electrically connected to the substrate 39P. The hole 39PH of the substrate 39P can be configured to correspond to the hole 39CH of the bottom cover 39C.

[0199] The insulating layer 39N can generally have a circular plate shape including a plurality of holes. The diameter of the insulating layer 39N can correspond to the diameter of the substrate 39P. Holes 39NH can be formed in the insulating layer 39N and can be configured to correspond to holes 39PH in the substrate 39P. Holes 39NH can be formed in the central portion of the insulating layer 39N.

[0200] Furthermore, the insulating layer 39N can be located on the substrate 39P. A plurality of mating portions 39CA of the bottom cover 39C can be inserted into a plurality of holes 39NA of the insulating layer 39N. A plurality of guide pins 39CB of the bottom cover 39C can be inserted into a plurality of holes 39NA of the insulating layer 39N. A plurality of terminals 39T of the substrate 39P can be inserted into a plurality of holes 39NH and 39NT of the insulating layer 39N. A plurality of pins 39UP of the connector 39U can be inserted into holes 39NP of the insulating layer 39N. Holes 39NH of the insulating layer 39N can be configured to correspond to holes 39PH of the substrate 39P.

[0201] The connector 36 can pass through the hole 39CH of the bottom cover 39C, the hole 39PH of the substrate 39P, and the hole 39NH of the insulating layer 39N. The top 363T of the connector 36 can protrude from the head 363 of the connector 36. The width of the top 363T can be less than the width of the head 363. The cross-section of the top 363T can have a partially cut circular shape, and the sides of the top 363T can include curved surfaces and flat surfaces. Threads can be formed on the sides of the top 363T.

[0202] Reference Figure 32 and Figure 33 The support plate 31 can generally have a circular plate shape including a plurality of holes. The diameter of the support plate 31 can be equal to or greater than the diameter of the insulating layer 39N. The support plate 31 can be made of metal. Holes 31H can be formed in the support plate 31. Holes 31H can be formed in the central portion of the support plate 31. A recess 31R can be recessed from the central portion of the top surface of the support plate 31, and holes 31H can be formed in the recess 31R.

[0203] Furthermore, the support plate 31 can be located on the insulating layer 39N. The support plate 31 can contain conductive materials such as metal, and the insulating layer 39N can electrically insulate the substrate 39P and the support plate 31. A plurality of connecting portions 39CA of the bottom cover 39C can be inserted into a plurality of holes 31A of the support plate 31. A plurality of guide pins 39CB of the bottom cover 39C can be inserted into a plurality of holes 31B of the support plate 31. A plurality of terminals 39T of the substrate 39P can be inserted into a plurality of holes 31T of the support plate 31. A plurality of pins 39UP of the connector 39U can be inserted into holes 31P of the support plate 31. The holes 31H of the support plate 31 can be configured to correspond to the holes 39NH of the insulating layer 39N.

[0204] A plurality of fastening members F6, such as screws, can be fastened to the joint 39CA of the bottom cover 39C inserted into the support plate 31. The head of the fastening member F6 (i.e., the screw head) can be located on the top surface of the support plate 31. Thus, the support plate 31, the insulating layer 39N, and the substrate 39P can be joined to the bottom cover 39C.

[0205] The head 363 of the connector 36 can support the recess 31R of the support plate 31. The top 363T of the connector 36 can pass through the hole 31H of the recess 31R. The hole 31H can have a shape corresponding to the cross-section of the top 363T, thereby restricting the rotation of the support plate 31 centered on the top 363T. A fixing member F5, such as a nut, can be fastened to the top 363T, and the recess 31R can be fixed between the fixing member F5 and the head 363. A washer W5 can be located between the fixing member F5 and the recess 31R. Thus, the support plate 31 can be connected to the connector 36.

[0206] On the other hand, the fixing holes 31F can be formed on the support plate 31 adjacent to the edge of the support plate 31. A plurality of fixing holes 31F can be arranged along the edge of the support plate 31.

[0207] Reference Figure 34 and Figure 35 The connector 36 can contact the bottom surface of the support plate 31 and can extend in a direction intersecting the support plate 31. The connector 36 can be referred to as an articulation 36. The connector 36 may include a body 361, a neck 362, and a head 363.

[0208] The body 361 can form the lower part of the connector 36. The body 361 can have a hollow cylindrical shape, and the central axis of the body 361 can extend in a direction intersecting the length direction (i.e., the vertical direction) of the connector 36 (i.e., the horizontal direction). The hole 361H of the body 361 can be a circular hole.

[0209] Neck 362 can protrude from body 361 toward support plate 31. Protrusion 364 can protrude from the side of neck 362. First protrusion 364R can protrude from the other side of neck 362. Second protrusion 364L can protrude from one side of neck 362.

[0210] The head 363 can protrude from the neck 362 toward the support plate 31 and can support the bottom surface of the support plate 31. The neck 362 connecting the body 361 and the head 363 can form the thinnest part of the joint 36.

[0211] The fixing base 35 may include a fixing part 350, a first part 351, and a second part 352. The fixing part 350 may be flat. The first part 351 may be bent upward from one side of the fixing part 350. The second part 352 may be bent upward from the other side of the fixing part 350. Each of the first part 351 and the second part 352 may have a shape that is bent at least once. A connector 36 may be disposed between the first part 351 and the second part 352 of the fixing base 35. A washer (unmarked) may be disposed between the body 361 of the connector 36 and the first part 351. A washer (unmarked) may be disposed between the body 361 of the connector 36 and the second part 352.

[0212] Hinge pin 37 can extend in a direction intersecting joint 36. The central axis of hinge pin 37 can extend in a direction intersecting rod 30 (see reference). Figure 33 The hinge shaft 37 extends in the intersecting direction (i.e., horizontally). The cross-section of the hinge shaft 37 may have a partially cut circular shape, and the side surface of the hinge shaft 37 may include curved surfaces and flat surfaces. Threads may be formed on the side surface of the hinge shaft 37. The hinge shaft 37 may pass through the hole 351H of the first part 351, the hole 361H of the body 361 of the connector 36, and the hole 352H of the second part 352. A plurality of holes 351H and 352H may have shapes corresponding to the cross-section of the hinge shaft 37, and hole 361H may be a circular hole. Thus, the rotation of the fixed seat 35 centered on the hinge shaft 37 can be restricted, and the connector 36 can rotate about axis A of the hinge shaft 37.

[0213] The fixing member 38, such as the nut, can be fastened to the end of the hinge shaft 37. The head 37H of the hinge shaft 37 can face the first part 351 of the fixing seat 35, and the fixing member 38 can face the second part 352 of the fixing seat 35. Thus, the joint 36 can be rotatably connected to the fixing seat 35 and the hinge shaft 37.

[0214] At least one disc spring 37D may be disposed between the first portion 351 of the mounting base 35 and the head 37H of the hinge shaft 37, the body of the hinge shaft 37 extending through the disc spring 37D. The disc spring 37D may protrude in the direction facing the head 37H or the opposite direction. The disc spring 37D may generate a spring force in the axial direction of the hinge shaft 37. A washer 37R may be disposed between the first portion 351 and the head 37H of the hinge shaft 37. The washer 37R may be disposed between the second portion 352 and the fixing member 38.

[0215] Thus, the connector 36 can be disposed between a plurality of portions 351, 352 of the fixed base 35. Due to the frictional force between the connector 36 and the plurality of portions 351, 352, the connector 36 can maintain a predetermined angle relative to the hinge axis 37. If a predetermined force greater than the frictional force is applied to the connector 36, the connector 36 can rotate. By adjusting the fastening length of the hinge axis 37 and the fixing member 38, the frictional force between the connector 36 and the plurality of portions 351, 352 can be adjusted.

[0216] A groove 35G can be formed in either the first portion 351 or the second portion 352 of the mounting base 35. A first groove 351G can be formed in the first portion 351, and a first protrusion 364R can be located in the first groove 351G. The first groove 351G can extend along the rotational trajectory of the first protrusion 364R. A second groove 352G can be formed in the second portion 352, and a second protrusion 364L can be located in the second groove 352G. The second groove 352G can extend along the rotational trajectory of the second protrusion 364L.

[0217] If, corresponding to the rotation of the connector 36 relative to the hinge axis 37, the protrusion 364 engages with one or the other end of the groove 35G, the rotation of the connector 36 can be restricted. With the hinge axis 37 as a reference, the angle between said one end and said other end of the groove 35G can be greater than 90 degrees. The end of the groove 35G can be located in a counterclockwise direction (CCW) from the length axis of the connector 36 (refer to...). Figure 35 The position is spaced at a first angle θa. For example, the first angle θa can be 15 degrees. The other end of the groove 35G can be located in a clockwise direction CW from the length axis of the connector 36 (refer to...). Figure 35 The position of the second angle θb. For example, the second angle θb can be 90 degrees. In this case, the joint 36 and the support plate 31 fixed thereto can rotate within a range of 105 degrees about the hinge axis 37.

[0218] Reference Figure 36 and Figure 37 The upper end of the rod 30 may be open. The rod 30 may extend long in a vertical direction and may be open at the top and bottom. The main body 300 of the rod 30 may have a hollow cylindrical or tubular shape that extends long in a vertical direction. A plurality of ribs 301 may protrude from the inner side of the main body 300 and may be spaced apart from each other. The plurality of ribs 301 may extend along the length of the main body 300. The upper ends of the plurality of ribs 301 may be adjacent to the upper end of the main body 300.

[0219] The fixing part 350 of the fixing seat 35 can be located on a plurality of ribs 301. Fastening members F4 such as screws can pass through the fixing part 350 and be fastened to the plurality of ribs 301, thereby the plurality of fastening members F4 can fix the fixing seat 35 to the rod 30.

[0220] The pole cap 30C may include a cap body 30Ca and a plurality of legs 30Cb. The cap body 30Ca may generally have an upwardly convex dome shape. The cap body 30Ca may surround the upper part of the fixing base 35, the lower part of the connector 36, and the structure connecting the fixing base 35 and the connector 36 (i.e., Figure 34 and Figure 35 (Hinge shaft 37 and fixing member 38, etc.). The main body 361 of the connector 36 can be located inside the cap body 30Ca, and the neck 362 can pass through the hole 30CH of the cap body 30Ca. The lower end of the cap body 30Ca can be located on the upper end of the rod 30. A plurality of legs 30Cb can protrude from the lower end of the cap body 30Ca and can engage with the grooves 300G formed on the inner surface of the rod body 300.

[0221] The rod cap 30C, which is attached to the rod 30, can be adjacent to the groove 39CG of the bottom cover 39C. The bottom cover 39C can be fixed to the support plate 31 and can be hinged together with the support plate 31 via the hinge axis 37 (see reference). Figure 35 The bottom cover 39C can rotate relative to the rod cap 30C surrounding the hinge axis 37. A groove 39CG is formed to prevent the rotating bottom cover 39C from interfering with the rod cap 30C. Since one side of the groove 39CG contacts the rod cap 30C, the rotation of the bottom cover 39C can be restricted. A pad 39CP can be formed or attached to the groove 39CG to cushion the impact when the groove 39CG collides with the rod cap 30C.

[0222] The second cable C2 can be disposed inside the rod 30. The second cable C2 can pass through the hole 300H formed in the upper part of the rod 30 and the hole 30CH of the rod cap 30C, and through the hole 39CH of the bottom cover 39C. Here, the hole 300H can be configured to correspond to the hole 30CH.

[0223] Reference Figure 37 and Figure 38 The support plate 31 can face the bottom portion 12A of the frame 12. The support plate 31 can be inserted into the interior of the bottom housing 112 through the central hole 112H of the bottom housing 112, and can be located on the bottom surface of the bottom portion 12A of the frame 12. The head of the fastening member F6 (see reference) Figure 33 The hole 12A6 or groove 12A6 formed on the bottom surface of the bottom portion 12A can be located therein. Fixing member F5 (see reference) Figure 33 The hole 12H or groove 12H formed on the bottom surface of the bottom portion 12A can be located. The guide pin 12GP can protrude from the bottom portion 12A and be inserted into the support plate 31 to guide the position of the support plate 31.

[0224] Article 150A (refer to) Figure 14The plural of the pins 151ba, 151bb and the second pin 150B (see reference) Figure 14 A plurality of pins 152ba and 152bb can protrude to the underside of the frame 12. A plurality of fixing holes 31F of the support plate 31 can be aligned with the plurality of pins 151ba, 151bb, 152ba, and 152bb. Fastening members F7, such as screws, can pass through the plurality of fixing holes 31F and be fastened to the plurality of pins 151ba, 151bb, 152ba, and 152bb. The head of the fastening member F7 (i.e., the screw head) can be located on the bottom surface of the support plate 31. Thus, the support plate 31 can be attached to the frame 12.

[0225] On the other hand, the frame 12 may contain non-conductive materials such as plastic, while the strip 150 and support plate 31 may contain conductive materials such as metal. The strip 150 may be electrically connected to the support plate 31. The main board 18 (see reference) is electrically connected to the strip 150. Figure 17 It can be electrically grounded with support plate 31 (and vice versa).

[0226] On the other hand, connector 36 and rod 30 may contain conductive materials such as metal. Support plate 31 can be electrically connected to rod 30 via connector 36. Main board 18 (see reference) is electrically connected to support plate 31. Figure 17 It can be electrically grounded with pole 30 (and vice versa).

[0227] Spring pin 17P can be connected to terminal 39T of substrate 39P (see reference). Figure 33 The spring pin 17P and terminal 39T can each be configured as a pair. Thus, the second cable C2 can be electrically connected to the DMD driver 17 via the substrate 39P, terminal 39T, and spring pin 17P. The main board 18 (see reference) is electrically connected to the DMD driver 17. Figure 16 and Figure 17 It can be electrically grounded with the second cable C2 (and vice versa).

[0228] Reference Figure 38 and Figure 39 The light source 39L can be mounted on the bottom surface of the substrate 39P. The light source 39L can be adjacent to the edge of the substrate 39P. A plurality of light sources 39L can be arranged along the edge of the substrate 39P. The substrate 39P can be a circular or annular substrate. The substrate 39P can be a PCB. The light source 39L can be an LED. The substrate 39P can be referred to as an LED substrate 39P. The on / off state, brightness, color, etc. of each light source 39L can be adjusted.

[0229] The diffuser plate 39D can generally have a ring shape. The diffuser plate 39D can be located in the gap G between the hole 112H of the bottom housing 112 and the bottom cover 39C. The diffuser plate 39D can seal the gap G. The diffuser plate 39D can be combined with the bottom housing 112 and / or the bottom cover 39C.

[0230] For example, the first fixing member 39Da can be disposed along the outer periphery of the diffuser plate 39D and can contact the inner sidewall 112AR of the bottom housing 112. For example, the second fixing member 39Db can be disposed along the inner periphery of the diffuser plate 39D and can contact the outer sidewall 39CR of the bottom cover 39C. For example, the first fixing member 39Da and the second fixing member 39Db can be made of rubber. The diffuser plate 39D with the first fixing member 39Da and the second fixing member 39Db fixed thereon can be coupled to the bottom housing 112 and the bottom cover 39C in an interference fit manner.

[0231] For example, the diffuser plate 39D between the bottom cover 39C and the bottom housing 112 can be smoothly connected to the bottom cover 39C and the bottom housing 112. The bottom cover 39C, the bottom housing 112, and the diffuser plate 39D can form the bottom surface of the bowl.

[0232] The diffuser plate 39D can be located in the light path of the light source 39L. The diffuser plate 39D diffuses the light from the light source 39L. The light from multiple light sources 39L can achieve surface emission within the diffuser plate 39D. That is, the diffuser plate 39D can form an illumination ring. The substrate 39P, the light source 39L, and the diffuser plate 39D can be referred to as the illumination module L. The illumination module L can be provided to the user as an ambient light. The light from the illumination module L can be referred to as ambient light.

[0233] Reference Figure 40 The base 40 can have a flat cylindrical shape overall. Alternatively, the base 40 can also have a prism shape. The base 40 may include a housing 41, a counterweight 42, a bracket 43, a bottom connector 44, and a base plate 45. The counterweight 42 may be referred to as a counterweight bracket 42, a counterweight plate 42, or a plate 42.

[0234] The housing 41 can form the appearance of the base 40. The housing 41 may include a top housing 411 and a bottom housing 412. The top housing 411 can form the top of the housing 41 and may generally have a ring or donut shape. A hole 411H can be formed in the center of the top housing 411. Alternatively, the hole 411H may also be adjacent to the edge of the top housing 411. The bottom housing 412 can form the bottom of the housing 41 and may have a barrel shape with an upward opening. The internal space of the base 40 can be formed between the top housing 411 and the bottom housing 412.

[0235] The counterweight 42 can be disposed within the internal space of the base 40. The counterweight 42 can generally be circular in shape. Alternatively, the counterweight 42 can also be a ring shape with angled edges, such as a quadrilateral ring. A hole 42H can be formed in the counterweight 42, and can be aligned with a hole 411H in the top housing 411. The hole 42H can be formed in the center of the counterweight 42. Alternatively, the hole 42H can be adjacent to the edge of the counterweight 42. A groove 42G can be formed from the edge of the counterweight 42 toward the inside of the counterweight 42. The groove 42G can be referred to as a notch 42G. The counterweight 42 can be made of metal. The counterweight 42 can be located on the bottom housing 412. The counterweight 42 can be attached to the bottom housing 412 by fastening members such as screws. A plurality of counterweights 42 can be stacked vertically.

[0236] The upper counterweight 421 may be adjacent to the inner side of the top housing 411. For example, the upper counterweight 421 may be a single sheet. A hole 421H may be formed in the center of the upper counterweight 421. A slot 421G may be formed from the edge of the upper counterweight 421 to the inner side of the upper counterweight 421. The upper counterweight 421 may be referred to as the upper plate 421, the first counterweight 421, or the first plate 421.

[0237] The intermediate counterweight 422 can be located below the upper counterweight 421. For example, there can be six intermediate counterweights 422. The number of intermediate counterweights 422 can be adjusted as needed. A hole 422H can be formed in the center of the intermediate counterweight 422. A slot 422G can be formed from the edge of the intermediate counterweight 422 toward the inside of the intermediate counterweight 422. The intermediate counterweight 422 can be referred to as an intermediate plate 422, a second counterweight 422, or a second plate 422.

[0238] The lower counterweight 423 can be located below the intermediate counterweight 422. The lower counterweight 423 can be located on the bottom housing 412. For example, the lower counterweight 423 can be a single sheet. A hole 423H can be formed in the center of the lower counterweight 423. A groove 423G can be formed from the edge of the lower counterweight 423 to the inside of the lower counterweight 423. The lower counterweight 423 can be referred to as a lower plate 423, a third counterweight 423, or a third plate 423.

[0239] The bracket 43 may be located between the bottom housing 412 and the lower counterweight 423. The bracket 43 may be made of die-cast aluminum. The bracket 43 may include a body 430 and a wall 431. The body 430 may be attached to the bottom surface of the lower counterweight 423. The annular wall 431 may extend vertically from the body 430 and may penetrate through the hole 42H of the counterweight 42 and the hole 411H of the top housing 411.

[0240] The bottom connector 44 can be located between the bottom housing 412 and the bracket 43, and can be fixed to the bracket 43.

[0241] The substrate 45 may be adjacent to the bottom connector 44. The substrate 45 may be located on the bottom housing 412 and may be coupled to the bottom housing 412. The substrate 45 may be located in the slot 42G of the counterweight 42. The substrate 45 may be a PCB. A first cable C1 may electrically connect the bottom connector 44 and the substrate 45. A jack J may be mounted on the substrate 45. A power cable C may be detachably coupled to the jack J, and the power cable C coupled to the jack J may be electrically connected to the substrate 45.

[0242] The pad 40P can be attached to the bottom surface of the bottom housing 412. The pad 40P can be made of materials such as rubber, polyurethane, or silicone.

[0243] Alternatively, wheels can be mounted on the bottom surface of the bottom housing 412. A plurality of wheels can be arranged along the edge of the bottom housing 412. In this case, the base 40 can move smoothly on the ground. Alternatively, the base 40 may not include wheels. In this case, the base 40 can be stably positioned on the ground.

[0244] Reference Figure 41 and Figure 42 The bottom housing 412 may include a bottom portion 412A forming the bottom of the bottom housing 412 and a side portion 412B forming the sides of the bottom housing 412.

[0245] A recess 412R may be recessed from the bottom surface of the bottom housing 412. The recess 412R may be formed in the center of the bottom portion 412A. A plurality of fixing portions 412F may protrude upward from the recess 412R. The plurality of fixing portions 412F may be spaced apart from each other and may be located at a plurality of vertices of a quadrilateral. A plurality of connecting portions 412C may protrude upward from the bottom portion 412A adjacent to the recess 412R. The plurality of connecting portions 412C may be arranged along the periphery of the recess 412R.

[0246] The bottom connector 44 may include a body 440 and a pin housing 441. The body 440 may be located between a plurality of retaining portions 412F. The body 440 may have a cross shape. The pin housing 441 may protrude from the body 440. A plurality of pins 442 may be configured inside the pin housing 441. A first cable C1 may be electrically connected to the plurality of pins 442 through the body 440.

[0247] The bracket 43 may have a cap shape overall. The bracket 43 may include a body 430 and a wall 431. The body 430 may cover the bottom connector 44. The pin cover 441 of the bottom connector 44 may penetrate through a through hole 430H in the body 430. An annular wall 431 may protrude from the body 430 and surround the side of the pin cover 441 of the bottom connector 44. Fastening members F2, such as screws, may penetrate the body 430 and be fastened to the body 440 of the bottom connector 44. A first cable C1 may pass through a slot 430S in the body 430. A plurality of fixing portions 412F and a plurality of engaging portions 412C may be inserted into recesses in the body 430. A plurality of fixing holes 430F in the body 430 may be aligned with a plurality of fixing portions 412F. A plurality of engaging holes 430C in the body 430 may be aligned with a plurality of engaging portions 412C.

[0248] Reference Figure 43 and Figure 44 The main body 430 of the bracket 43 may include a first portion 430a and a second portion 430b. The first portion 430a may form the edge of the main body 430. The second portion 430b may be formed between the first portion 430a and the wall 431, and may form a step that rises from the first portion 430a. A mating hole 430C and a fixing hole 430E may be formed in the second portion 430b. A guide pin 430P may protrude from the top surface of the second portion 430b. A plurality of mating holes 430C, a plurality of fixing holes 430E, and a plurality of guide pins 430P may be arranged along the side of the wall 431.

[0249] Multiple support portions 412P can protrude from the top surface of the bottom portion 412A of the bottom housing 412 and can be configured along the side portion 412B.

[0250] A plurality of joints 412Q may protrude from the top surface of the bottom portion 412A of the bottom housing 412 and may be configured along the side portion 412B.

[0251] A plurality of guide pins 412GP can protrude from the top surface of the bottom portion 412A of the bottom housing 412 and can be adjacent to the side portion 412B.

[0252] The lower counterweight 423 may have a circular plate shape including a plurality of holes. The lower counterweight 423 may be located on the bottom portion 412A of the bottom housing 412. A plurality of lower fixing portions 423P may be formed by stamping from the bottom surface of the lower counterweight 423 upwards, and may be located on a plurality of support portions 412P of the bottom housing 412. A plurality of through holes 423Q may be formed in the lower counterweight 423, and a plurality of connecting portions 412Q may pass through the plurality of through holes 423Q. A plurality of guide holes 423GP may be formed in the lower counterweight 423, and a plurality of guide pins 412GP may pass through the plurality of guide holes 423GP.

[0253] The lower joint 423R can be formed by stamping from the bottom surface of the lower counterweight 423 upwards, and a hole 423H can be formed in the lower joint 423R. The lower joint 423R can protrude from the top surface of the lower counterweight 423. That is, the lower joint 423R can form a step that rises from the top surface of the lower counterweight 423. The lower joint 423R can be located on the second part 430b of the bracket 43, and the wall 431 can penetrate the hole 423H. The guide pin 430P of the bracket 43 can penetrate the guide hole 423RP of the lower joint 423R. Fastening members such as screws can penetrate the lower joint 423R and the joint hole 430C and be fastened to the joint 412C of the bottom housing 412, thereby fixing the lower counterweight 423 and the bracket 43 to the bottom housing 412.

[0254] Reference Figure 44 and Figure 45 The intermediate counterweight 422 can be a circular plate shape including a plurality of holes. The intermediate counterweight 422 can be located on the lower counterweight 423. The plurality of intermediate counterweights 422 can be stacked sequentially and can have the same shape. For example, the number of the plurality of intermediate counterweights 4221, 4222, 4223, 4224, 4225, and 4226 can be six. A plurality of fixing holes 422P can be formed in the intermediate counterweight 422, and a plurality of lower fixing portions 423P can be inserted into the plurality of fixing holes 422P. A plurality of through holes 422Q can be formed in the intermediate counterweight 422, and a plurality of connecting portions 412Q can be inserted into the plurality of through holes 422Q. A plurality of guide holes 422GP can be formed in the intermediate counterweight 422, and a plurality of guide pins 412GP can be inserted into the plurality of guide holes 422GP.

[0255] Hole 422H can be formed in the intermediate counterweight 422, and the second part 430b of bracket 43 can be inserted into hole 422H. Wall 431 can penetrate hole 422H.

[0256] The slot 422G can be formed in the intermediate counterweight 422 and can be configured to correspond to the slot 423G of the lower counterweight 423. The slit 422S can be formed between the slot 422G and the hole 422H of the intermediate counterweight 422.

[0257] On the other hand, at least one cushioning pad 4230 may be disposed between the lower counterweight 423 and the intermediate counterweight 422. A plurality of cushioning pads 4230 may be disposed along the edge of the lower counterweight 423. For example, the cushioning pad 4230 may be a non-woven fabric.

[0258] Reference Figure 45 and Figure 46The upper counterweight 421 may have a circular plate shape including a plurality of holes. The upper counterweight 421 may be located on the intermediate counterweight 422. A plurality of upper fixing parts 421P may be formed by stamping from the top surface of the upper counterweight 421 downwards, and may be inserted into a plurality of fixing holes 422P of the intermediate counterweight 422. Fastening members such as screws may pass through the plurality of upper fixing parts 421P of the upper counterweight 421 and the plurality of lower fixing parts 423P of the lower counterweight 423 and be fastened to a plurality of support parts 412P of the bottom housing 412. A plurality of through holes 421Q may be formed in the upper counterweight 421 and may be aligned with the plurality of through holes 422Q of the intermediate counterweight 422. A plurality of guide holes 421GP may be formed in the upper counterweight 421 and may be aligned with the plurality of guide holes 422GP of the intermediate counterweight 422.

[0259] The upper connecting portion 421R can be formed by stamping downwards from the top surface of the upper counterweight 421, and the hole 421H can be formed in the upper connecting portion 421R. The upper connecting portion 421R can protrude from the bottom surface of the upper counterweight 421. That is, the upper connecting portion 421R can form a step that decreases in height from the bottom surface of the upper counterweight 421. The upper connecting portion 421R can be located on the lower connecting portion 423R of the lower counterweight 423, and the wall 431 can penetrate the hole 421H. The upper connecting portion 421R and the lower connecting portion 423R can be located in the hole 422H of the intermediate counterweight 422. The guide pin 430P of the bracket 43 can penetrate the guide hole 421RP of the upper connecting portion 421R. Fastening components such as screws F22 can penetrate the holes 423RE of the upper connecting portion 421R and the lower counterweight 423 (see reference). Figure 45 Secure to the mounting hole 430E of bracket 43 (refer to) Figure 43 The upper joint 421R may have a plurality of grooves (not shown) for a plurality of fastening members F23 to be provided.

[0260] Thus, the upper counterweight 421, the middle counterweight 422, and the lower counterweight 423 can be combined with the bottom shell 412 and the bracket 43.

[0261] On the other hand, at least one cushioning pad 4220 may be disposed between the intermediate counterweight 422 and the upper counterweight 421. A plurality of cushioning pads 4220 may be disposed along the edge of the intermediate counterweight 422. For example, the cushioning pad 4220 may be a non-woven fabric.

[0262] The groove 421G can be formed on the upper counterweight 421 and can be configured to correspond to the groove 422G of the intermediate counterweight 422. The slit 421S can be formed between the groove 421G of the upper counterweight 421 and the upper joint 421R.

[0263] A portion of the first cable C1 can be disposed on the upper joint 421R. The first cable C1 can be disposed in the slot 42G of the counterweight 42 through a plurality of slits 421S, 422S.

[0264] The substrate 45 can be disposed in the slot 42G of the counterweight 42. The substrate 45 can be located on a plurality of joints 412U protruding from the top surface of the bottom housing 412, and fastening members such as screws F24 can be fixed to the substrate 45 and the plurality of joints 412U. The substrate 45 can be a PCB. A first cable C1 can electrically connect the bottom connector 44 and the substrate 45. A socket J can be mounted on the substrate 45 and can face the hole 412H of the bottom housing 412. A power cable C can be detachably connected to the socket J, and the cable C connected to the socket J can be electrically connected to the substrate 45.

[0265] Thus, an external power source connected to cable C can supply power to the bottom connector 44 through the substrate 45 and the first cable C1.

[0266] Reference Figure 46 and Figure 47 Fastening components such as screws F31 can penetrate through a plurality of fixing parts 412F of the bottom housing 412 and the main body 430 of the bracket 43. Fastening components F31 can be arranged along the inner side of the wall 431 of the bracket 43.

[0267] Reference Figure 47 and Figure 48 The top shell 411 may have a circular plate shape including a central hole 411H. Inner ribs 411r may extend along the inner periphery of the top shell 411, forming the hole 411H. Outer ribs 411u may extend along the outer periphery of the top shell 411. The top shell 411 may be covered by a counterweight 421 (see reference). Figure 46 A plurality of protrusions 411Q can protrude from the bottom surface of the top housing 411 and can be inserted into a plurality of through holes 421Q, 422Q of the counterweight 42. The plurality of protrusions 411Q of the top housing 411 can be located on a plurality of mating portions 412Q of the bottom housing 412. Fastening members F30, such as screws, can pass through the plurality of mating portions 412Q of the bottom housing 412 and be fastened to the protrusions 411Q of the top housing 411.

[0268] Thus, the top housing 411 can be attached to the bottom housing 412.

[0269] On the other hand, at least one cushioning pad 4210 (refer to) Figure 46 The upper counterweight 4210 can be configured between the upper counterweight 421 and the top housing 411. A plurality of cushioning pads 4210 can be configured along the edge of the upper counterweight 421. For example, the cushioning pads 4210 can be non-woven fabric.

[0270] Reference Figures 49 to 51 The wall 431 of the bracket 43 can extend vertically from the main body 430 and can penetrate the hole 411H of the top housing 411. The guide rib 432 can protrude from the inner side of the wall 431.

[0271] The pin cover 441 of the bottom connector 44 can penetrate the body 430 of the bracket 43. The pin cover 441 can be located inside the wall 431 of the bracket 43. A plurality of pins 442 can be configured inside the pin cover 441. A guide protrusion 443 can protrude from the inner side of the pin cover 441.

[0272] The retainer 32 can be attached to the lower end of the rod 30. The retainer 32 can include a retainer body 320. The retainer body 320 can generally have a hollow cylindrical shape. The retainer body 320 can be inserted into the inner side of the wall 431 of the bracket 43. A plurality of ribs 321 can protrude from the inner circumferential surface of the retainer body 320 and can be spaced apart from each other along the inner circumferential surface of the retainer body 320. A plurality of fastening members F31 penetrating the body 430 of the bracket 43 can be fastened to a plurality of holes 321H of the plurality of ribs 321. Thus, the retainer 32 can be attached to the bracket 43 of the base 40.

[0273] A slit 320S can be formed on the side of the retainer body 320. A guide rib 432 of the bracket 43 can be inserted into the slit 320S. Thus, the guide rib 432 and the slit 320S can guide the engagement of the bracket 43 and the retainer 32. A flange 320F can protrude from the side of the retainer body 320. The flange 320F can be adjacent to the upper end of the wall 431.

[0274] The top connector 34 can be located inside the retainer body 320 and can be mounted on the retainer body 320. The top connector 344 may include a body 340, a first wing 340L, a second wing 340R, a cover 341, and a pin hole 342. The body 340 may have a cylindrical shape. The first wing 340L and the second wing 340R may protrude from the side of the body 340 and can be engaged with the inner side of the retainer body 320. The cover 341 may protrude from the body 340 and can be inserted into the interior of the pin cover 441. The pin hole 342 may be formed in the cover 341. The pin 442 of the bottom connector 44 can be inserted into the pin hole 342 of the top connector 34, and the bottom connector 44 and the top connector 34 can be electrically connected. The bottom connector 44 may be referred to as the first connector 44, and the top connector 34 may be referred to as the second connector 34.

[0275] A guide groove 341G can be formed on the side of the cover 341, and a guide protrusion 443 can be located on the guide groove 341G. Thus, the guide protrusion 443 and the guide groove 341G can guide the engagement of the bottom connector 44 and the top connector 34.

[0276] The second cable C2 can be electrically connected to the top connector 34 and can be configured in the hollow portion of the retainer body 320 and the hollow portion of the rod 30. The second cable C2 can be connected to the power cable C (see reference) via the top connector 34, the bottom connector 44, the first cable C1, and the substrate 45. Figure 46 Electrical connection.

[0277] Thus, an external power source connected to cable C can supply power to the spring pin 17P of the head 10 via the substrate 45, the first cable C1, the bottom connector 44, the top connector 34, the second cable C2, and the terminal 39T of the substrate 39P (see reference). Figure 33 , Figure 37 , Figure 46 ).

[0278] The sleeve 322 of the retainer 32 can have a cup shape with a downward opening. The top portion 322a of the sleeve 322 can be penetrated by the rod 30. The side portion 322b of the sleeve 322 can surround the outer side of the retainer body 320. In other words, the retainer body 320 can be inserted into the sleeve 322. The protrusion 322c of the sleeve 322 can be formed on the inner side of the side portion 322b and can hook into the flange 320F of the retainer body 320. The side portion 322b of the sleeve 322 can be inserted into the gap G4 between the wall 431 of the bracket 43 and the hole 411H of the top housing 411. This improves the stability of the connection between the rod 30 and the base 40.

[0279] On the other hand, the head 10 (reference) Figure 30 It can be electrically connected to the bottom connector 44 via the second cable C2 and the top connector 34. Head 10 (refer to...) Figure 30 It can be used with base 40 (see reference) Figure 30 The bottom connector 44 is electrically grounded (or vice versa). The bottom connector 44 can be electrically grounded to the substrate 45 via the first cable C1 (or vice versa).

[0280] On the other hand, support plate 31 (refer to) Figure 30 ) and rod 30 (refer to) Figure 30 It may contain conductive materials such as metal. Head 10 (refer to...) Figure 30 The head 10 can be electrically connected to the base 40 via the support plate 31 and the rod 30. For example, the bracket 43 and the counterweight 42 of the base 40 can be made of conductive materials such as metal. For example, the rod 30 can be electrically connected to the conductive (plural) components of the base 40 via the retaining body 320 and / or the sleeve 322 described later. The retaining body 320 and / or the sleeve 322 can be made of conductive materials such as metal. The head 10 can be electrically grounded to the base 40 via the support plate 31 and the rod 30 (and vice versa).

[0281] Reference Figure 1, Figure 52 and Figure 53 The angle of the head 10 of the projection device 1 can be adjusted.

[0282] Reference Figure 1 The head 10 can be configured perpendicularly to the rod 30. The lens 14L of the head 10 can face forward, and the cover 10C of the head 10 can face upward. The head 10 can project images (including video) forward (see reference). Figure 1 The head 10 can output sound upwards (see P). Figure 1 (S).

[0283] Reference Figure 52 The head 10 can be obtained from Figure 1 The head 10 rotates approximately 90 degrees backward. The lens 14L of the head 10 can face upward, and the cover 10C of the head 10 can face backward. The head 10 can project an image (including a video) upward (see reference). Figure 52 (P). That is, head 10 can project images (including video) toward the ceiling. Head 10 can output sound to the rear (see P). Figure 52 (S). On the other hand, the lighting module L can, for example, shine light onto the wall W. Due to the light from the lighting module L, the atmosphere of the space where the projection device 1 is located can be changed. The brightness and color of the light from the lighting module L can be adjusted.

[0284] Reference Figure 53 The head 10 can be obtained from Figure 1 The head 10 rotates forward approximately 15 degrees. The lens 14L of the head 10 can tilt downwards from the front, and the cover 10C of the head 10 can tilt forwards from the top. An image (including a video) can be projected from the front of the head 10 downwards (see reference). Figure 53 (P). That is, the height of the image projected from the head 10 can be smoothly adjusted by adjusting the angle of the head 10. Sound can be output from the upper side of the head 10 at an angle towards the front (see P). Figure 53 (S).

[0285] Therefore, the image projection direction and sound projection direction of the head 10 can be adjusted. In addition, the projection device 1 can also function as a lighting device.

[0286] Reference Figure 54 The position and size of the image projected onto the wall W can be adjusted based on the distance between the projection device 1 and the wall W, and the angle of the head 10. For example, the wall W can be a fixed structure between the floor where the projection device 1 is placed and the ceiling of the indoor space where the projection device 1 is located.

[0287] Reference Figure 54(a) The head 10 of the projection device 1 can be perpendicular to the rod 30, which can be referred to as the 0-degree posture of the head 10. The projection device 1 can be separated from the wall W by a first distance D11, and can project an image toward the wall W. The bottom line of the image projected by the projection device 1 can be parallel to the horizontal direction, and the top line of the image can form a predetermined angle θ10 with respect to the bottom line. The bottom line can be located at a first height Da relative to the floor on which the projection device 1 is placed. The image projected onto the wall W (refer to...) Figure 54 The Sa) can be relatively high above the floor (refer to) Figure 54 The Da), can be placed slightly away from the ceiling (see reference). Figure 54 (H11). For example, the size of the image projected onto the wall can correspond to a 100-inch screen.

[0288] Reference Figure 54 (b) The head 10 of the projection device 1 can be lowered slightly forward; this state can be referred to as the +15-degree head 10 posture. The projection device 1 can be separated from the wall W by a second distance D12, and can project an image onto the wall W. The second distance D12 can be greater than the first distance D11. The image projected onto the wall W (see reference) Figure 54 Sb) can be slightly away from the floor (see reference) Figure 54 The Db can be relatively far from the ceiling (refer to...) Figure 54 (H12). For example, the size of the image projected onto the wall can correspond to a 100-inch screen.

[0289] Reference Figure 54 (c) The head 10 of the projection device 1 can tilt significantly backward, which can be referred to as the -90-degree head 10 posture. The projection device 1 can be separated from the wall W by a third distance D13, and can project an image onto the ceiling. The third distance D13 can be less than or greater than distances D11 and D12. The image projected onto the ceiling (see...) Figure 54 The size of the image projected onto the ceiling can be determined based on the distance between the head 10 and the ceiling. For example, the size of the image projected onto the ceiling can correspond to a 40-inch screen.

[0290] Reference Figure 55 The control unit CL of the projection device 1 can be electrically connected to the projector P, the illumination module L, and the speaker 19. The control unit CL can control the operation of the projector P, the illumination module L, and the speaker 19. For example, the control unit CL can be located on the mainboard 18 (see reference). Figure 23 ).

[0291] The projector P, the lighting module L, and the speaker 19 can be driven independently of each other. For example, the projector P can be driven, and each of the lighting module L and the speaker 19 can be driven or not driven. For example, the lighting module L can be driven, and each of the projector P and the speaker 19 can be driven or not driven. For example, the speaker 19 can be driven, and each of the projector P and the lighting module L can be driven or not driven. For example, the image of the projector P and the sound of the speaker 19 can correspond to each other.

[0292] The projector P, lighting module L, and speaker 19 can be connected via communication module 10W (see reference). Figure 26 The projector P can be wirelessly connected to an external terminal. The projector P can be driven or stopped by the external terminal. The projector P can generate and output images based on information received from the external terminal. The projector P can transmit information about the images generated by the projector P to the external terminal. The lighting module L can be driven or stopped by an external terminal. The lighting module L can adjust the color, brightness, etc., of the light based on information received from the external terminal. The lighting module L can transmit information about the light generated by the lighting module L to the external terminal. The speaker 19 can output sound based on information received from the external terminal. The speaker 19 can transmit information about the sound output by the speaker 19 to the external terminal.

[0293] Thus, the projection device 1 can provide at least one of images (including video), sound, and lighting.

[0294] Reference Figure 56 Interface 13 can be located in the center of the cover 10C of head 10. Touch panel 131 can form the outer surface of interface 13. Backlight unit 130 of interface 13 can provide light to touch panel 131, thereby allowing touch panel 131 to emit light. Not only can the on / off state of touch panel 131 be adjusted, but also the color and brightness of the light emitted by touch panel 131 can be adjusted. (Refer to...) Figure 55 The backlight unit 130 can be driven independently of the aforementioned projector P, lighting module L, and speaker 19.

[0295] On the other hand, the color and brightness of the light from the touch panel 131 can be adjusted independently of the color and brightness of the light from the illumination module L. Alternatively, the color and brightness of the light from the touch panel 131 can be synchronized with the color and brightness of the light from the illumination module L. Alternatively, the color and brightness of the light from the touch panel 131 can be adjusted correspondingly to the color and brightness of the light from the illumination module L.

[0296] Reference Figures 57 to 59A plurality of icons 13N can be formed on the touch panel 131. The user can control the head 10 by touching the icons 13N. The icons 13N can be referred to as buttons 13N. Alternatively, the user can control the head 10 using a remote controller that is wirelessly connected to the head 10.

[0297] The first button 13Na can be a (Bluetooth) speaker mode button. The second button 13Nb can be a projection mode button. The third button 13Nc can be a lighting (ambient light) mode button. The fourth button 13Nd can be a select (confirm) / power button. The fifth button 13Ne can be a back button. The sixth button 13Nf can be a four-way button. The sixth button 13Nf can consist of an upward arrow, a downward arrow, a leftward arrow, and a rightward arrow. A user pressing button 13N for less than a specified time is called a short press. A user pressing button 13N for more than a specified time is called a long press. The specified time can be approximately 1.3 seconds.

[0298] For example, a user can briefly press the first button 13Na. If the first button 13Na is pressed briefly while the head 10 is only connected to power (Case 1), the speaker 19 can be turned on and switched to Bluetooth pairing ready state. For example, the last device connected to the speaker 19 can automatically connect to the speaker 19 via Bluetooth. If the first button 13Na is pressed briefly while the speaker 19 is on (Case 2), the Bluetooth connection between the device connected to the speaker 19 and the speaker 19 can be released, and the speaker 19 can switch to Bluetooth pairing ready state. If the first button 13Na is pressed briefly while the projector P is on (Case 3), a pop-up message will appear ( Figure 59 The pop-up message (serial number 1) can be displayed on the OSD (On Screen Display: on-screen menu adjustment mode). The OSD can be displayed on the image projected by the projector P. Regarding the pop-up message, the user can select "Yes" to end the project mode and switch to speaker mode, or select "No" to close the pop-up message. If the first button 13Na is pressed briefly while the lighting mode is on (Case 4), the speaker 19 can be turned on and switched to Bluetooth pairing ready state. For example, the last device connected to the speaker 19 can automatically connect to the speaker 19 via Bluetooth. If the first button 13Na is pressed briefly while the speaker 19 and lighting mode are on (Case 5), the Bluetooth connection between the device connected to the speaker 19 and the speaker 19 can be terminated, and the speaker 19 can switch to Bluetooth pairing ready state.

[0299] For example, a user can press and hold the first button 13Na. If the first button 13Na is pressed and held while the speaker 19 is on (Case 6), the speaker 19 can be turned off. If the first button 13Na is pressed and held while the speaker 19 and the lighting mode are on (Case 7), the speaker 19 can be turned off.

[0300] For example, a user can briefly press the second button 13Nb. If the second button 13Nb is pressed briefly while the head 10 is only connected to the power supply (Case 8), the projector P can be turned on. If the second button 13Nb is pressed briefly while the speaker 19 is on (Case 9), the projector P can be turned on after the speaker 19 is turned off. If the second button 13Nb is pressed briefly while the projector P is on (Case 10), a pop-up message will appear ( Figure 59 The pop-up message (number 3) can be displayed on the OSD. Regarding the pop-up message, the user can select "Yes" to execute the installation guide for screen reset, or select "No" to close the pop-up message. If the second button 13Nb is pressed briefly while the lighting mode is on (Case 11), the projector P can be turned on after the lighting module L is turned off. If the second button 13Nb is pressed briefly while the speaker 19 and lighting mode are on (Case 12), the projector P can be turned on after the speaker 19 and lighting module L are turned off.

[0301] For example, a user can press and hold the second button 13Nb. If the second button 13Nb is pressed and held while the projector P is on (Case 13), the projector P can be turned off.

[0302] For example, a user can briefly press the third button 13Nc. If the third button 13Nc is pressed briefly while the head 10 is only connected to the power supply (Case 14), the lighting module L can be turned on. If the third button 13Nc is pressed briefly while the speaker 19 is on (Case 15), the lighting module L can be turned on. If the third button 13Nc is pressed briefly while the projector P is on (Case 16), a pop-up message will appear. Figure 59The pop-up message (serial number 2) can be displayed on the OSD. Regarding the pop-up message, the user can select "Yes" to end the projection mode and switch to the lighting mode, or select "No" to close the pop-up message. If the third button 13Nc is pressed briefly while the lighting mode is on (Example 17), the user can enter the lighting editing mode, where they can change the brightness and color of the lighting module L. However, if there is no user input within a specified time (e.g., three seconds), the lighting editing mode can end with the last set value. If the third button 13Nc is pressed briefly while the speaker 19 and the lighting mode are on (Example 18), the user can enter the lighting editing mode, where they can change the brightness and color of the lighting module L. However, if there is no user input within a specified time (e.g., three seconds), the lighting editing mode can end with the last set value.

[0303] For example, a user can press and hold the third button 13Nc. If the third button 13Nc is pressed and held while the lighting mode is on (Case 19), the lighting module L can be turned off. If the third button 13Nc is pressed and held while the speaker 19 and the lighting mode are on (Case 20), the lighting module L can be turned off.

[0304] For example, a user can briefly press the fourth button 13Nd. If the fourth button 13Nd is pressed briefly while the head 10 is only connected to the power supply (Case 21), the last off mode (speaker mode, projection mode, or lighting mode) can be turned on. If the fourth button 13Nd is pressed briefly while the speaker 19 is on (Case 22), the sound from the speaker 19 can be played or temporarily stopped. If the fourth button 13Nd is pressed briefly while the projector P is on (Case 23), the user can display the local key menu on the OSD (see...). Figure 61 The local key menu (O) can be used to confirm or activate a specific function on the menu. If the fourth button 13Nd is pressed briefly while the lighting mode is on (Case 24), a specific setting in the lighting editing mode can be selected. If the fourth button 13Nd is pressed briefly while the speaker 19 and lighting mode are on (Case 25), the sound from the speaker 19 can be played or temporarily stopped. Alternatively, a specific setting in the lighting editing mode can also be selected.

[0305] For example, a user can press and hold the fourth button 13Nd. If the fourth button 13Nd is pressed and held while the speaker 19 is on (Case 26), the speaker 19 can be turned off. If the fourth button 13Nd is pressed and held while the projector P is on (Case 27), the projector P can be turned off. If the fourth button 13Nd is pressed and held while the lighting mode is on (Case 28), the lighting module L can be turned off. If the fourth button 13Nd is pressed and held while both the speaker 19 and the lighting mode are on (Case 29), both the speaker 19 and the lighting module L can be turned off.

[0306] For example, a user can briefly press the fifth button 13Ne (Case 30) while the projector P is on to input a return message to the projector P.

[0307] For example, a user can briefly press the sixth button 13Nf. With speaker 19 on, a user can briefly press the sixth button 13Nf to adjust the volume or play the previous or next track. If the projector P is on, a brief press of the sixth button 13Nf (Case 31) can change the channel or volume of the image played on projector P, or select or activate a specific function on the local key menu O. With lighting mode on, a user can briefly press the sixth button 13Nf to adjust the brightness and color of the lighting module L. A user can briefly press the sixth button 13Nf with both speaker 19 and lighting mode on to adjust the volume or play the previous or next track. Alternatively, in lighting editing mode, the brightness and color of the lighting module L can be adjusted.

[0308] Will Figure 60 and Figure 57 Referring to the interface 13, the touch panel 131 can emit light from its surface. The backlight unit 130 of the interface 13 can provide light to the touch panel 131. A diffuser plate can be located between the backlight unit 130 and the touch panel 131 to diffuse the light from the backlight unit 130. The touch panel 131 can be located on the diffuser plate. The touch panel 131 can sense the user's touch. The brightness and color of the light from the backlight unit 130 can be adjusted.

[0309] For example, a user can briefly press the first button 13Na. If the first button 13Na is pressed briefly when the head 10 is only connected to power or when the speaker 19 is on, the brightness and color of the set interface 13 can be maintained, and it will flash at one-second intervals to indicate waiting for Bluetooth pairing. After flashing twice, it will continue to light up to indicate that the speaker 19 has been paired with Bluetooth. If the first button 13Na is pressed briefly when the projector P is on, the light of the interface 13 can be turned off. If the first button 13Na is pressed briefly when the lighting mode is on or when both the speaker and lighting modes are on, the brightness and color of the set interface 13 can be maintained, and it will flash at one-second intervals to indicate waiting for Bluetooth pairing. After flashing twice, it will continue to light up to indicate that the speaker 19 has been paired with Bluetooth.

[0310] For example, a user can press and hold the first button 13Na. If the first button 13Na is pressed and held while the speaker 19 is on, the backlight of the interface 13 can be turned off. If the first button 13Na is pressed and held while the speaker and lighting modes are on, the set brightness and color of the interface 13 can be maintained.

[0311] For example, a user can briefly press the second button 13Nb. If the second button 13Nb is briefly pressed in any mode of the head 10, the illumination of the interface 13 can be turned off.

[0312] For example, a user can briefly press the third button 13Nc. If the third button 13Nc is pressed while the head 10 is only connected to power or when the speaker 19 is on, the set brightness and color of the interface 13 can be maintained. If the third button 13Nc is pressed while the projector P is on, the illumination of the interface 13 can be turned off. If the third button 13Nc is pressed while the lighting mode is on or both the speaker and lighting modes are on, the set brightness and color of the interface 13 can be maintained. Alternatively, if entering lighting editing mode, the interface 13 can flash at one-second intervals. The user can change the brightness and color of the interface 13 using the sixth button 13Nf. The interface 13 can maintain its final setting for two seconds before flashing at one-second intervals.

[0313] For example, a user can press and hold the third button 13Nc. If the third button 13Nc is pressed and held while the lighting mode is on, or while both the speaker and lighting modes are on, the illumination of interface 13 can be turned off.

[0314] For example, a user can briefly press the fourth button 13Nd. If the fourth button 13Nd is pressed briefly while the head 10 is only connected to power or with the speaker 19 on, the set brightness and color of the interface 13 can be maintained. However, if a signal to turn on the projector P is input, the illumination of the interface 13 can be turned off. If the fourth button Nd is pressed briefly while the projector P is on, the illumination of the interface 13 can be turned off. If the fourth button 13Nd is pressed briefly while the lighting mode is on or while both the speaker and lighting modes are on, the set brightness and color of the interface 13 can be maintained.

[0315] For example, the user can press and hold the fourth button 13Nd. If the fourth button 13Nd is pressed and held in any mode of the head 10 (except when the head 10 is only connected to the power supply), the illumination of the interface 13 can be turned off.

[0316] For example, a user can briefly press the fifth button 13Ne. If the fifth button 13Ne is pressed briefly while the projector P is on, the illumination of interface 13 can be turned off.

[0317] For example, a user can briefly press the sixth button 13Nf. If the sixth button 13Nf is pressed while the speaker 19 is on, the set brightness and color of the interface 13 can be maintained. If the sixth button 13Nf is pressed while the projector P is on, the light emitted by the interface 13 can be turned off. If the sixth button 13Nf is pressed while the lighting mode is on, the user can change the brightness and color of the light on the interface 13 in lighting editing mode. If the sixth button 13Nf is pressed while the lighting mode is on, or while both the lighting mode and the speaker 19 are on, the set brightness and color of the interface 13 can be maintained. Alternatively, in lighting editing mode, the user can change the brightness and color of the light on the interface 13.

[0318] Therefore, the brightness and color of the interface 13 can be adjusted according to the mode of the head 10 and the user's selection.

[0319] Reference Figure 61 An image S projected by a projector P onto a screen, etc., can form an OSD (On-Screen Display). A local key menu O can be displayed on the OSD. The user can select one of the multiple menus I, II, III, IV of the local key menu O or exit the local key menu O by touching the multiple buttons 13N of the touch interface 13. Alternatively, the user can select or exit the local key menu O by operating a remote controller that wirelessly communicates with the head 10.

[0320] Reference Figures 1 to 61The projection device 1 may include: a projector P; a housing 11 for housing the projector P; electronic components installed inside the housing 11; and a cover 10C covering one side of the housing 11, which is made of conductive material; the cover 10C may be electrically connected to the electronic components.

[0321] The cover 10C may include a flap 10CM, which protrudes from the cover 10C toward the interior of the housing 11, and the flap 10CM may be electrically connected to the electronic components.

[0322] The cover 10C may include a plurality of outer flaps 10CM, which protrude from the edge of the cover 10C and are arranged along the edge of the cover 10C; the outer flaps 10CM may be bent from the edge of the cover 10C and located on the inner side of the housing 11, and are electrically connected to the electronic components.

[0323] The cover 10C may include a hole 10CH formed in the cover 10C; the housing 11 may include a hole 111C aligned with the hole 10CH of the cover 10C; the cover 10C may include: a plurality of outer flaps 10CM protruding from the outer edge of the cover 10C and disposed along the outer edge; and a plurality of inner flaps 10CN protruding from the inner edge of the cover 10C and disposed along the inner edge; the outer flaps 10CM may be bent from the outer edge of the cover 10C and located on the inner side of the housing 11; the inner flaps 10CN may be bent from the inner edge of the cover 10C and located on the inner side of the housing 11.

[0324] The electronic component may include an interface 13 having a portion 131 of the hole 111C in the housing 11 and the hole 10CH in the cover 10C; the interface 13 may be electrically connected to the outward flange 10CM.

[0325] The projection device 1 may also include a bracket 14F, which is attached to the inner side of the housing 11 and is made of conductive material; the electronic component 13 can be electrically connected to the cover 10C through the bracket 14F.

[0326] The cover 10C may include a flange 10CM, which protrudes from the cover 10C and faces the interior of the housing 11; the electronic component may include a substrate 13P, which is combined with and electrically connected to the bracket 14F; a portion of the bracket 14F may contact and be electrically connected to the flange 10CM.

[0327] The projection device 1 may further include a gasket Ga, which is located inside the housing 11 and is conductive; the electronic components may include: a first electronic component 13, mounted on the bracket 14F; and a second electronic component 14D, spaced apart from the bracket 14F; one end of the gasket Ga may contact and be electrically connected to the bracket 14F; the other end of the gasket Ga may be electrically connected to the second electronic component 14D.

[0328] The projection device 1 may further include a protective cover 14S, which protects the second electronic component 14D and is made of conductive material; the other end of the gasket Ga may contact the protective cover 14S and be electrically connected to the protective cover 14S, and may be electrically connected to the second electronic component 14D through the protective cover 14S.

[0329] The projection device 1 may also include a pad Gb, which is located on the bracket 14F and is made of conductive material; the electronic component 14 may be located on the pad Gb and electrically connected to the bracket 14F through the pad Gb.

[0330] The projection device 1 may also include a bridge portion 15, which is located inside the housing 11 and is conductive; the cover 10C may include a flange 10CM, which protrudes from the cover 10C and faces the inside of the housing 11; the flange 10CM may be electrically connected to the electronic components through the bridge portion 15.

[0331] The projection device 1 may further include a frame 12 located inside the housing 11; the cover 10C may cover the outer surface of a portion 111 of the housing 11; the electronic components may be located between the portion 111 of the housing 11 and the frame 12; the housing 11 may include a post 111L protruding from the portion 111 of the housing 11 toward the frame 12; the frame 12 may include a fixing portion 12L formed in the frame 12, and the post 111L disposed in the fixing portion 12L; the bridge portion 15 may include: a first portion 151 contacting the flange 10CM; a second portion 152 extending along the post 111L; and a third portion 153 disposed between the post 111L and the fixing portion 12L.

[0332] The projection device 1 may further include: a bar 150 located on the frame 12 and made of conductive material; and a gasket G10, one side of which contacts the bar 150 and is made of conductive material; the other side of the gasket G10 may be disposed between the third portion 153 of the bridge portion 15 and the fixing portion 12L; the electronic component may include a substrate, which is attached to the frame 12 and electrically connected to the bar 150.

[0333] The electronic component may include: a first substrate 17 located on the strip 150; and a second substrate 18 covering the first substrate 17 and electrically connected to the first substrate 17; the cover 10C may be electrically grounded to the second substrate 18 through the flange 10CM, the bridge portion 15, the gasket G10, the strip 150, and the first substrate 17.

[0334] The projection device 1 may further include a frame 12 located inside the housing 11; the electronic components may further include: a first substrate 13P disposed between the housing 11 and the frame 12 and coupled to the housing 11; and a second substrate 18 disposed between the housing 11 and the frame 12 and coupled to the frame 12; the first substrate 13P may be electrically connected to the second substrate 18 via a cable C38.

[0335] The projection device 1 may include: a head 10 having a projector P; a base 40 spaced apart from the head 10; and a rod 30 connecting the head 10 and the base 40; the head 10 may include: a cover 10C forming the outer surface of the head 10 and being made of a conductive material; and electronic components installed inside the head 10; the cover 10C may be electrically connected to the electronic components.

[0336] The cover 10C can be electrically grounded to the rod 30 and the base 40 via the electronic components.

[0337] The projection device 1 may further include a support plate 31, which is located between the head 10 and the rod 30 and is combined with the head 10 and the rod 30. The support plate 31 is made of conductive material. The head 10 may include: a frame 12, on which the electronic components are mounted; and a strip 150, located on the frame 12 and electrically connected to the electronic components. The strip 150 may be electrically connected to the support plate 31 and may be electrically connected to the rod 30 through the support plate 31.

[0338] The rod 30 can contact and be electrically connected to a conductive component of the base 40.

[0339] The base 40 may include: a first cable C1; and a first connector 44 electrically connected to the first cable C1; the rod 30 may include: a second cable C2 electrically connected to the electronic component of the head 10; and a second connector 34 electrically connected to the second cable C2; ​​the second cable C2 may be electrically connected to the first cable C1 through the second connector 34 and the first connector 44.

[0340] The foregoing embodiments of the present invention, or other embodiments thereof, are not mutually exclusive or distinct. Various configurations or functions of the foregoing embodiments of the present invention, or other embodiments thereof, may be used in combination or interchangeably.

[0341] For example, this means that configuration A as illustrated in a specific embodiment and / or the drawings can be combined with configuration B as illustrated in other embodiments and / or the drawings. That is, it means that even if the combination between the configurations is not directly described, they can be combined except where it is stated that they cannot be combined.

[0342] The detailed description above should not be construed as limiting in all respects, but rather as exemplary. The scope of the invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within the scope of the invention.

Claims

1. A projection device, wherein, include: Projector; A housing that accommodates the projector; Electronic components are installed inside the housing; as well as A cover made of conductive material covers one side of the housing; The cover is electrically connected to the electronic component.

2. The projection device according to claim 1, wherein, The cover includes a flange that protrudes from the cover and faces into the interior of the housing; The flange is electrically connected to the electronic component.

3. The projection device according to claim 1, wherein, The cover includes a plurality of outwardly flanged edges, which protrude from the edge of the cover and are arranged along the edge of the cover; The outwardly flared edge bends from the edge of the cover and is located on the inner side of the housing, and is electrically connected to the electronic components.

4. The projection device according to claim 1, wherein, The cover includes a hole; The housing includes a hole aligned with the opening in the cover; The cover includes: A plurality of outwardly flanged edges protrude from the outer periphery of the cover and are arranged along the outer periphery; and A plurality of inner flanges protrude from the inner periphery of the cover and are arranged along the inner periphery; The outward flange bends from the outer periphery of the cover and is located on the inner side of the housing; The inward flange bends from the inner periphery of the cover and is located on the inner side of the housing.

5. The projection device according to claim 4, wherein, The electronic component includes an interface having a portion of the hole located in the housing and the hole in the cover; The interface is electrically connected to the outward-facing edge.

6. The projection device according to claim 1, wherein, It also includes a bracket made of conductive material, which is attached to the inner side of the housing; The electronic components are electrically connected to the cover via the bracket.

7. The projection device according to claim 6, wherein, The cover includes a flange that protrudes from the cover and faces into the interior of the housing; The electronic component includes a substrate, which is coupled to and electrically connected to the bracket. A portion of the bracket contacts and is electrically connected to the flange.

8. The projection device according to claim 6, wherein, It also includes a gasket, which is located inside the housing and is conductive; The electronic components include: A first electronic component, mounted on the bracket; and The second electronic component is separated from the bracket; One end of the gasket contacts the bracket and is electrically connected to the bracket; The other end of the gasket is electrically connected to the second electronic component.

9. The projection device according to claim 8, wherein, It also includes a protective cover made of conductive material, which protects the second electronic component; The other end of the gasket contacts and is electrically connected to the shield, and is electrically connected to the second electronic component through the shield.

10. The projection device according to claim 6, wherein, It also includes a conductive gasket located in the bracket; The electronic component is located on the gasket and is electrically connected to the bracket through the gasket.

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