Projector device

Abstract

A projector device is disclosed. The projector device of the present disclosure may comprise a head having a projector, a base spaced apart from the head, and a pole connecting the head and the base, wherein the base comprises: a case; an upper plate inside the case; a lower plate below the upper plate; and a middle plate between the upper plate and the lower plate, wherein a portion of the upper plate and a portion of the lower plate may be inserted into the middle plate.

Description

Projector device

[0001] The present disclosure relates to a projector device. More specifically, the present disclosure relates to a stand-type projector device.

[0002] With the advancement of modern digital devices and video technology, projectors have established themselves as devices that provide viewing experiences to users in various environments. As a device that projects images onto a screen, a projector comprises optical mechanisms consisting of a lens that projects the image toward the screen and components that provide the image to the lens.

[0003] Conventional projectors were primarily used mounted on the ceiling or placed on a table. While this type of projector can be advantageous for providing stable images from a fixed position, it presented problems such as difficulty in installation depending on the work environment or difficulty in relocating the installation site.

[0004] Recently, much research has been conducted on structures that enhance the portability of projectors. In addition, there is significant research being carried out on projectors that can be used in user-friendly forms in various environments.

[0005] The present disclosure aims to solve the aforementioned problems and other problems.

[0006] Another purpose may be to provide a stand-type projector device.

[0007] Another purpose may be to provide a structure that allows the angle of the projector combined with the stand to be adjusted.

[0008] Another purpose may be to provide a projector device equipped with a lighting module and / or a speaker.

[0009] Another purpose may be to provide a layout structure for the electronic components of the projector device head.

[0010] Another purpose may be to provide the structure of the head, pole, and base of the projector device, as well as their assembly structure.

[0011] Another purpose may be to provide a coupling structure for the weights of the base of the projector device.

[0012] Another objective may be to provide a structure that mechanically and electrically stably couples the pole to the base.

[0013] Another purpose may be to provide an electrical connection structure for the projector device.

[0014] Another purpose may be to provide a structure that expands the grounding area of ​​the projector device to minimize malfunction or damage to electronic components.

[0015] Another purpose may be to provide a method for controlling the projector device.

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

[0017] According to one aspect of the present disclosure for achieving the above or other purposes, a projector device may comprise: a head having a projector; a base spaced apart from the head; and a pole connecting the head and the base, and the base may comprise: a case; an upper plate inside the case; a lower plate below the upper plate; and a middle plate between the upper plate and the lower plate, and a part of the upper plate and a part of the lower plate may be inserted into the middle plate.

[0018] Also, according to another aspect of the present disclosure, a projector device may comprise: a head having a projector; a base spaced apart from the head; and a pole connecting the head and the base. The base may comprise: a first cable; and a first connector electrically connected to the first cable, and the pole may comprise: a second cable electrically connected to the head; and a second connector electrically connected to the second cable, and the first cable may be electrically connected to the second cable through the first connector and the second connector.

[0019] The effects of the projector device according to the present disclosure are described as follows.

[0020] According to at least one of the embodiments of the present disclosure, a stand-type projector device can be provided.

[0021] According to at least one of the embodiments of the present disclosure, a structure capable of adjusting the angle of a projector coupled to a stand can be provided.

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

[0023] According to at least one of the embodiments of the present disclosure, an arrangement structure of electronic components of a head of a projector device can be provided.

[0024] According to at least one of the embodiments of the present disclosure, the structure of each of the head, pole, and base of a projector device, as well as the assembly structure thereof, can be provided.

[0025] According to at least one of the embodiments of the present disclosure, a coupling structure of weights of the base of a projector device can be provided.

[0026] According to at least one of the embodiments of the present disclosure, a structure can be provided that mechanically and electrically stably couples a pole to a base.

[0027] According to at least one of the embodiments of the present disclosure, an electrical connection structure of a projector device can be provided.

[0028] According to at least one of the embodiments of the present disclosure, a structure can be provided that expands the grounding area of ​​a projector device to minimize malfunction or damage to electronic components.

[0029] According to at least one of the embodiments of the present disclosure, a method for controlling a projector device can be provided.

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

[0031] Further scopes of the applicability of the present disclosure will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present disclosure are clearly understood by those skilled in the art, specific embodiments, such as the detailed description and preferred embodiments of the present disclosure, should be understood as being given merely as examples.

[0032] FIGS. 1 to 61 are drawings illustrating examples of projector devices according to embodiments of the present disclosure.

[0033] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols are given the same reference number, and redundant descriptions thereof will be omitted.

[0034] The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently possess distinct meanings or roles.

[0035] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art may obscure the essence of the embodiments disclosed in this specification, such detailed description is omitted. Furthermore, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that they include all modifications, equivalents, and substitutions that fall within the concept and technical scope of this disclosure.

[0036] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0037] When a component is described as “coupled,” “fixed,” “mounted,” “connected,” or “linked” with another component, another component may exist between that component and the other component. When a component is described as “directly coupled,” “directly fixed,” “directly mounted,” “directly connected,” or “directly linked” with another component, there may not be another component in between.

[0038] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0039] In this application, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0040] The directional indications of Up (U), Down (D), Left (Le), Right (Ri), Front (F), and Rear (R) shown in the drawings are for convenience of explanation only and do not limit the technical concepts disclosed in this specification.

[0041]

[0042] Referring to FIG. 1, the projector device (1) may include a head (10) and a stand (20). The projector device (1) may be referred to as a projector apparatus (1) or a projector (1). The projector device (1) may be referred to as an electronic device (1).

[0043] The head (10) can project an image (including video) onto a surface such as a screen, wall, or ceiling. The head (10) can connect to video content such as OTT via an embedded component and project an image of said content. Alternatively, the head (10) can connect to video content such as OTT via an external device connected thereto and output an image of said content. The head (10) may be referred to as a projector (10), a beam projector (10), a main body (10), or a set (10).

[0044] The stand (20) can support the head (10). The stand (20) may include a pole (30) and a base (40). The pole (30) may be extended, 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 be extended vertically, and the head (10) may be connected to the top of the pole (30). For example, the base (40) may be connected to the bottom of the pole (30) and may be placed on the ground. The base (40) may be referred to as the stand base (40).

[0045] The width (D4) of the base (40) may be greater than the width (D1) of the head (10). The length (H3) of the pole (30) may be greater than the width (D4). The height (H1) of the projector device (1) may be the distance between the upper surface of the head (10) and the lower surface of the base (40). Alternatively, the height of the projector device (1) may be the distance between the upper surface of the head (10) and the lower surface of the pad (40P, see FIG. 44) of the lower surface of the base (40), which may be greater than the height (H1).

[0046]

[0047] Referring to FIG. 2, the head (10) may have the shape of a round box overall. Alternatively, the head (10) may have the shape of an angular box.

[0048]

[0049] Referring to FIGS. 3 and 4, the head (10) may include a case (11) and a frame (12).

[0050] The case (11) can form the internal space of the head (10). The case (11) may include a top case (111) and a bottom case (112). The top case (111) can form the top of the case (11) and may have a circular plate shape overall. The bottom case (112) can form the bottom of the case (11) and may have a tub shape. The top case (111) can be detachably coupled to the bottom case (112), and the internal space of the head (10) can be formed between the top case (111) and the bottom case (112).

[0051] The frame (12) may be located between the top case (111) and the bottom case (112). The frame (12) may be mounted on the bottom case (112). The frame (12) may have a circular plate shape overall. The internal components of the head (10) may be positioned between the top case (111) and the frame (12).

[0052] The cover (10C) may cover the upper surface of the top case (111). The cover (10C) may include pores or holes. The pores or holes of the cover (10C) may be illustrated in FIGS. 1 and 56. Other drawings, such as FIGS. 2 and 3, may illustrate the cover (10C) with the pores or holes omitted to reduce the complexity of the drawings. The cover (10C) in FIGS. 2 and 3 may also include the pores or holes. The cover (10C) may be a metal mesh. Alternatively, the cover (10C) may include a fabric material. Meanwhile, the top case (111) may be omitted and the cover (10C) may face the frame (12), or the top case (111) and the cover (10C) may be formed as one body.

[0053]

[0054] Referring to FIG. 5, the cover (10C) may have the shape of a ring plate overall and may have a hole (10CH). The hole (10CH) may be formed in the center of the cover (10C). An outer rib (10CA) may be arranged along the outer edge of the cover (10C). The outer rib (10CA) may protrude downward from the outer edge of the cover (10C) and may extend along the outer edge. An inner rib (10CB) may be arranged along the inner edge of the cover (10C). The inner rib (10CB) may protrude downward from the inner edge of the cover (10C) and may extend along the inner edge. The inner edge of the cover (10C) may define the boundary of the hole (10CH).

[0055] Holes in the cover (10C) can be formed in the portion of the cover (10C) between the outer rib (10CA) and the inner rib (10CB) using a metal mesh. A cushion (10CS) can be positioned between the outer rib (10CA) and the inner rib (10CB) and can cover the lower surface of the cover (10C). The cushion (10CS) may include holes (10CSC, 10CSH) corresponding to the holes (111C, 111H) of the top case (111). For example, the cushion (10CS) may include a non-woven fabric material.

[0056] The outer flap (10CM) may protrude from the outer rib (10CA) and may face the portion of the cover (10C) between the outer rib (10CA) and the inner rib (10CB). The outer flap (10CM) may be referred to as an electrical conductor (10CM), a contactor (10CM), a gripper (10CM), a protrusion (10CM), or a bent portion (10CM). The protrusion (10CMa) may be bent from the outer rib (10CA), and an extension (10CMb) may be formed at the end of the protrusion (10CMa). The extension (10CMb) may have various shapes, such as a triangle or a square. A pair of slits (10CMc) may be formed on both sides of the protrusion (10CMa). Multiple outer flaps (10CM) can be arranged along the outer rib (10CA) and can be spaced apart from each other.

[0057] The inner flap (10CN) may protrude from the inner rib (10CB) and may face the portion of the cover (10C) between the outer rib (10CA) and the inner rib (10CB). The inner flap (10CN) may be referred to as an electrical conductor (10CN), a contactor (10CN), a gripper (10CN), a protrusion (10CN), or a bent portion (10CN). The protrusion (10CNa) may be bent from the inner rib (10CB), and an extension (10CNb) may be formed at the end of the protrusion (10CNa). The extension (10CNb) may have various shapes, such as a triangle or a square. A pair of slits (10CNc) may be formed on both sides of the protrusion (10CNa). Multiple inner flaps (10CN) can be arranged along the inner rib (10CB) and can be spaced apart from each other.

[0058]

[0059] Referring to FIGS. 6 and 7, the cover (10C) can cover the top of the top case (111). An insertion hole (111C) can be formed in the top case (111) corresponding to a hole (10CH) of the cover (10C). An inner rib (10CB) of the cover (10C) can be inserted into the insertion hole (111C) of the top case (111) and can be adjacent to the boundary surface of the insertion hole (111C). An outer rib (10CA) of the cover (10C) can surround the outer edge of the top case (111). For example, the cover (10C) may include an electrically conductive material such as metal, and the top case (111) may include a plastic material.

[0060] An outer groove (111M) may be formed on the lower surface of the top case (111) adjacent to the outer perimeter of the top case (111). The outer groove (111M) may be recessed from the bottom of the top case (111) and may have a shape corresponding to the outer flap (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 case (111) and may extend to surround the outer groove (111M). Multiple outer grooves (111M) may be arranged along the outer perimeter of the top case (111) and may be spaced apart from each other. Multiple outer flaps (10CM) can be bent (folded) from the outer rib (10CA) of the cover (10C) and positioned on multiple outer grooves (111M). Accordingly, the outer portion of the cover (10C) can be attached to the top case (111).

[0061] An inner groove (111N) may be formed on the lower surface of the top case (111) adjacent to the insertion hole (111C) of the top case (111). The inner groove (111N) may be recessed from the bottom of the top case (111) and may have a shape corresponding to the inner flap (10CN) of the cover (10C). The inner groove (111N) may be referred to as a recessed portion (111N). Multiple inner grooves (111N) may be arranged along the insertion hole (111C) of the top case (111) and may be spaced apart from each other. Multiple inner flaps (10CN) may be bent (folded) from the inner rib (10CB) of the cover (10C) and positioned on the multiple inner grooves (111N). Accordingly, the inner portion of the cover (10C) can be joined to the top case (111).

[0062] The top case (111) may include a plurality of holes (111C, 111H). An insertion hole (111C) may be formed in the center of the top case (111). A speaker hole (111H) may be formed in the top case (111) and may be spaced apart from the insertion hole (111C). The speaker hole (111H) may be adjacent to the edge of the top case (111). A first speaker hole (111Ha) and a second speaker hole (111Hb) may be spaced apart from each other. The three holes (111C, 111Ha, 111Hb) may be located at the vertices of a triangle.

[0063] An annular rib (111R) may protrude from the lower surface of the top case (111) and may define a speaker hole (111H). The rib (111R) may have a shape in which a hollow cylinder is cut diagonally. The first rib (111Ra) may have a shape in which a hollow cylinder is cut diagonally in a first direction and may define a first speaker hole (111Ha). The second rib (111Rb) may have a shape in which a hollow cylinder is cut diagonally in a second direction intersecting the first direction and may define a second speaker hole (111Hb).

[0064] The cushion (10CS) can be sandwiched between the bottom of the cover (10C) and the top of the top case (111). The cushion (10CS) can dampen vibrations of the assembly of the cover (10C), the cushion (10CS), and the top case (111). The cushion (10CS) can prevent holes (see FIG. 3) other than the holes (111C, 111H) of the top case (111) from being easily exposed to the outside.

[0065] A column (111L) may protrude from the bottom of the top case (111) adjacent to the edge of the top case (111). Multiple columns (111L) may be arranged along the edge of the top case (111). For example, three columns (111La, 111Lb, 111Lc) may be formed in the top case (111).

[0066]

[0067] Referring to FIGS. 8 and 9, the engine bracket (14F) may be located on the lower surface of the top case (111). The engine bracket (14F) may have the shape of a plate overall. Fastening members (Fa), such as screws, may pass through the engine bracket (14F) and be fastened to the top case (111), thereby securing the engine bracket (14F) to the top case (111). The engine bracket (14F) may include an electrically conductive material such as metal. The engine bracket (14F) may be referred to as the bracket (14F).

[0068] The interface (13) may be located on the lower surface of the top case (111) adjacent to the engine bracket (14F). A portion (131) of the interface (13) may be inserted into the insertion hole (111C) of the top case (111) and the hole (10CH) of the cover (10C). The portion (131) may have a shape corresponding to the holes (111C, 10CH). The portion (131) may be a touch panel (131). The interface (13) may be referred to as a display unit (13), a touch module (13), or a first electronic component (13). The interface (13) may include a substrate (13P), a backlight unit (130), and a touch panel (131).

[0069] The substrate (13P) may be a Printed Circuit Board (PCB). The substrate (13P) may be a rectangular PCB. The substrate (13P) may be located below the engine bracket (14F). Fastening member(s) (Fb), such as screws, may pass through the substrate (13P) and the engine bracket (14F) to be fastened to the top case (111), thereby allowing the fastening member(s) (Fb) to secure the substrate (13P) to the top case (111). The interface (13) equipped with the substrate (13P) may be electrically connected to the engine bracket (14F). That is, the interface (13) may be electrically grounded to the engine bracket (14F) (and vice versa). The substrate (13P) may be referred to as the first substrate (13P).

[0070] The backlight unit (130) may be adjacent to the bottom surface of the top case (111) adjacent to the substrate (13P). The backlight unit (130) may be adjacent to the engine bracket (14F). The backlight unit (130) may be located on a portion of the top case (111) around the insertion hole (111C). The backlight unit (130) may be a rectangular unit. The backlight unit (130) may be electrically connected to the substrate (13P) via a cable (13C). For example, the cable (13C) may be a Flexible Flat Cable (FFC). The backlight unit (130) may include a substrate and at least one light source mounted on the substrate. The light source may be a Light Emitting Diode (LED). The substrate (13P) may control the driving of the light source.

[0071] A touch panel (131) can be mounted on a backlight unit (130). The touch panel (131) can be inserted into an insertion hole (111C) of the top case (111) and a hole (10CH) of the cover (10C). The touch panel (131) may be a circular panel corresponding to the holes (111C, 10CH). The backlight unit (130) may provide light to the touch panel (131). A diffuser plate may be positioned between the backlight unit (130) and the touch panel (131) and may diffuse the light from the backlight unit (130). The touch panel (131) may emit light from the light of the backlight unit (130). A user may operate the interface (13) by (soft) touching the touch panel (131).

[0072] The bracket (13F) may be located below the backlight unit (130). The backlight unit (130) may be positioned between the bottom of the top case (111) and the bracket (13F). Fastening members (Fc), such as screws, may pass through the bracket (13F) and be fastened to the top case (111), thereby allowing the fastening members (Fc) to secure the bracket (13F) and the components (130, 131) of the interface (13) to the top case (111). Some of the fastening members (Fc) may pass through the bracket (13F) and the engine bracket (14F) and be fastened to the top case (111).

[0073] A bridge (15) may be located below the top case (111). One side of the bridge (15) may be in contact with an outer flap (10CM), and the other side of the bridge (15) may be connected to a column (111L). The bridge (15) may include an electrically conductive material such as metal. The bridge (15) may be referred to as an electrical conductor (15) or a contactor (15). The bridge (15) may include a first part (151), a second part (152), and a third part (153). The first part (151) may be adjacent to the lower surface of the top case (111). The first part (151) may have an overall L shape. The second part (152) may be bent downward from the first part (151) and may extend along the column (111L). The third part (153) can be bent from the second part (152) and can be joined to the column (111L). The portion forming the end of the column (111L) can penetrate the third part (153), thereby allowing the bridge (15) to be joined to the column (111L). Fastening member(s) (Fd), such as a screw, can penetrate the first part (151) of the bridge (15) and be fastened to the top case (111), thereby securing the bridge (15) to the top case (111). Multiple bridges (15) can be adjacent to multiple columns (111L).

[0074] The first bridge (15A) may be adjacent to the first column (111La) and may be coupled to the first column (111La). A first portion of the first part (151) of the first bridge (15A) may contact the first outer flap (10CM1). A second portion of the first part (151) of the first bridge (15A) may contact the engine bracket (14F). Accordingly, the engine bracket (14F) may be electrically connected to the first outer flap (10CM1) of the cover (10C) through the first bridge (15A). That is, the engine bracket (14F) may be electrically grounded to the cover (10C) (and vice versa).

[0075] The second bridge (15B) may be adjacent to the second column (111Lb) and may be coupled to the second column (111Lb). A portion of the first part (151) of the second bridge (15B) may come into contact with the second outer flap (10CM2) of the cover (10C). Accordingly, the second bridge (15B) may be electrically connected to the second outer flap (10CM2) of the cover (10C). That is, the second bridge (15B) may be electrically grounded to the cover (10C) (and vice versa).

[0076] The third bridge (15C) may be adjacent to the third column (111Lc) and may be coupled to the third column (111Lc). A portion of the first part (151) of the third bridge (15C) may come into contact with the third outer flap (10CM3) of the cover (10C). Accordingly, the third bridge (15C) may be electrically connected to the third outer flap (10CM3) of the cover (10C). That is, the third bridge (15C) may be electrically grounded to the cover (10C) (and vice versa).

[0077] A portion of the engine bracket (14F) may come into contact with the fourth outer flap (10CM4). Accordingly, the engine bracket (14F) may be electrically connected to the fourth outer flap (10CM4) of the cover (10C). That is, the engine bracket (14F) may be electrically grounded to the cover (10C) (and vice versa).

[0078] A coupling pin (14P) may protrude downward from the engine bracket (14F). Multiple coupling pins (14P) may be spaced apart from each other. For example, four coupling pins (14P) may be coupled to or formed on the engine bracket (14F).

[0079] The gasket (Ga) may be electrically conductive. The gasket (Ga) may include an adhesive layer or adhesive material such as tape. The gasket (Ga) may be referred to as a conductive tape (Ga). One side of the gasket (Ga) may be attached to the engine bracket (14F). The gasket (Ga) may extend from the engine bracket (14F).

[0080] The gasket (Gb) may be electrically conductive. The gasket (Gb) may include an adhesive layer or adhesive material such as tape. The gasket (Gb) may be referred to as a conductive foam (Gb). The gasket (Gb) may be located on or attached to the lower surface of the engine bracket (14F). The gasket (Gb) may be located on or attached to the engine (14) described later.

[0081]

[0082] Referring to FIGS. 10 and 11 together with FIG. 9, the engine (14) may be positioned on the lower surface of the engine bracket (14F). A coupling pin (14P) of the engine bracket (14F) may be inserted into the engine (14) and may guide the coupling of the engine (14) and the engine bracket (14F). By fastening member(s), such as screws, to the coupling pin (14P) inserted into the engine (14), the engine (14) may be fixed to the engine bracket (14F). The engine (14) may be referred to as an image generation unit (14) or an optical engine (14). The engine (14) may include a Digital Micromirror Device (DMD). The DMD of the engine (14) may form an image (including video) from the light of a light source. Each micromirror of the DMD may correspond to each pixel of the image. The image generated by the engine (14) can be output to the outside through the lens (14L). The engine (14) can be referred to as the third electronic component (14).

[0083] For example, a light source providing light to the engine (14) may be a light-emitting diode (LED). A first light source may provide blue light to the engine (14). A first heat sink (14a) may be adjacent to the first light source and may be equipped with heat dissipation fins. A second light source may provide red light to the engine (14). A second heat sink (14b) may be adjacent to the second light source and may be equipped with heat dissipation fins. A third light source may provide green light to the engine (14). A third heat sink (14c) may be adjacent to the third light source and may be equipped with heat dissipation fins. A fourth heat sink (14e) may be adjacent to the third heat sink (14c) and may be located on the opposite side of the first heat sink (14a). The substrate (140) of the engine (14), i.e., the PCB (140, Printed Circuit Board), can be surrounded by heat sinks (14a, 14b, 14c, 14d).

[0084] The engine (14), the light source, and the lens (14L) may be components of a projector (P). The projector (P) can project a beam, i.e., an image (including video), onto a screen, etc.

[0085] A gasket (Gb, see FIG. 9) can be placed between the engine bracket (14F) and the engine (14) and can electrically connect the engine bracket (14F) and the engine (14). That is, the engine (14) can be electrically grounded to the engine bracket (14F) through the gasket (Gb) (and vice versa).

[0086]

[0087] Referring to FIG. 12, the LED driver (14D) may be located on the lower surface of the top case (111). The shield (14S) may be located on the lower surface of the LED driver (14D). Fastening member(s) (Fe), such as screws, may pass through the shield (14S) and the LED driver (14D) to fasten them to the top case (111), thereby allowing the fastening member(s) (F3) to secure the shield (14S) and the LED driver (14D) to the top case (111). The LED driver (14D) may drive the light source that provides light to the engine (14). The LED driver (14D) may be equipped with a PCB (Printed Circuit Board). The LED driver (14D) may be electrically connected to the light source via a cable. The LED driver (14D) may be referred to as a second electronic component (14D).

[0088] The bottom part (14Sa) of the shield (14S) can cover the bottom of the LED driver (14D), and a plurality of holes may be formed in the bottom part (14Sa). The side part (14Sb, see FIG. 10) of the shield (14S) can cover the edge of the LED driver (14D), and a plurality of holes may be formed in the side part (14Sb). The shield (14S) protecting the LED driver (14D) may include an electrically conductive material such as metal and may be electrically connected to the LED driver (14D). The shield (14S) may be referred to as a shield can (14S, shieldcan).

[0089] A gasket (Ga, see FIG. 9) can be placed between the top case (111) and the LED driver (14D) and can be in contact with the side part (14Sb) of the shield (14S) (see area (Ta) in FIG. 26). The gasket (Ga) can electrically connect the engine bracket (14F) and the shield (14S). That is, the engine bracket (14F, see FIG. 9) can be electrically grounded to the shield (14S) through the gasket (Ga) (and vice versa). Also, the shield (14S) can be electrically grounded to the LED driver (14D) (and vice versa). Meanwhile, the side part (14Sb) of the shield (14S) can be in contact with the outer flap (10CM) (see area (Tb) in FIG. 26), and the LED driver (14D) and the shield (14S) can be electrically grounded to the cover (10C) (the reverse is also true).

[0090] The fan (16) may be fixed to the inside of the top case (111) adjacent to the engine (14). The fan (16) may be inserted and fixed into a fan housing (16F) formed on the inside of the top case (111). The fan (16) may cause airflow through the head (10, see FIG. 2). The fan (16) may be referred to as a cooling fan (16). The first fan (16a) may be adjacent to the third heatsink (14c) and may be fixed to the first fan housing (16Fa). The second fan (16b) and the third fan (16c) may be positioned between the engine (14) and the shield (14S) and may be fixed to the second fan housing (16Fb) and the third fan housing (16Fc). The fan (16) may be referred to as a fourth electronic component (16).

[0091] Meanwhile, the fan (16) can be operated when the projector (P) is driven. If only the speaker (19), which will be described later, is driven, the fan (16) may not be operated. In this case, the sound quality of the speaker (19) may be improved. Alternatively, the fan (16) may be operated even if only the speaker (19) is driven.

[0092] Meanwhile, FIG. 12 may illustrate a first assembly (10A). The first assembly (10A) may be referred to as an upper assembly (10A). The first assembly (10A) may include a cover (10C), a cushion (10CS), a top case (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.

[0093]

[0094] Referring to FIG. 13, the frame (12) may have a bowl shape overall. The frame (12) may include a bottom part (12A) and a side part (12B). The bottom part (12A) may form the bottom of the frame (12). The bottom part (12A) may be a circular part. The side part (12B) may extend along the edge of the bottom part (12A). The side part (12B) may curve from the bottom part (12A) toward the top case (111, see FIG. 3 and 4). Multiple holes may be formed in the bottom part (12A) and the side part (12B).

[0095] A central hole (12H) may be formed in the center of the bottom part (12A). Through holes (12HP) may be formed in the bottom part (12A) adjacent to the central hole (12H).

[0096] The first hole (12H1) and the eighth hole (12H8) may be formed in the bottom part (12A) adjacent to the side part (12B). The second hole (12H2), the third hole (12H3), and the fifth hole (12H5) may be formed in the bottom part (12A) and the side part (12B). The fourth hole (12H4), the sixth hole (12H6), the seventh hole (12H7), and the ninth hole (12H9) may be formed in the side part (12B).

[0097] The first opening (12Ea) and the second opening (12Eb) can be formed in the bottom part (12A) and the side part (12B), and can be located in the rear part of the frame (12).

[0098] An IR (Infrared) sensor (10F) can be mounted on the frame (12) adjacent to the edge of the frame (12). The mounting portion (12F) on which the IR sensor (10F) is mounted can protrude from the side part (12B). The IR sensor (10F) can detect an IR signal.

[0099] The IR (Infrared) sensor (10R) can be opposite to the IR sensor (10F) and can be mounted on the frame (12). The mounting portion (12R) on which the IR sensor (10R) is mounted can protrude from the side part (12B). The IR sensor (10R) can detect IR signals.

[0100] A bracket (10WF) can be mounted on the frame (12) adjacent to the edge of the frame (12) and positioned between the IR sensors (10F, 10R). The bracket (10WF) can be attached to the inner side of the side part (12B) of the frame (12) through a fastening member such as a screw. A communication module (10W, see FIG. 4) can be attached to the outer side of the bracket (10WF) and positioned in a 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 WiFi module and / or a Bluetooth module. The head (10) can exchange information with an external terminal through the communication module (10W).

[0101] Insertion holes (12S) may be formed in the bottom part (12A) of the frame (12). Multiple insertion holes (12S) may be spaced apart from each other. For example, four insertion holes (12Sa, 12Sb, 12Sc, 12Sd) may be adjacent to the edges of the bottom part (12A) and may be located at the vertices of a rectangle.

[0102]

[0103] Referring to FIG. 14, a bar (150) may be positioned on the bottom part (12A) of a frame (12). The bar (150) may be made of an electrically 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 a plastic material. The bar (150) may include a first bar (150A) and a second bar (150B). The first bar (150A) may be convex in a first direction (DR1) from the center of the bottom part (12A). The second bar (150B) may be convex in a second direction (DR2) opposite to the first direction (DR1) from the center of the bottom part (12A).

[0104] The first bar (150A) may include a body (151a), a pin (151b, pin), and a projection (151c). The body (151a) may be located on the bottom part (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 FIG. 25) may protrude from the lower surface of the body (151a) and may be inserted into an insertion hole (12S) of the bottom part (12A). The first pin (151ba) may be adjacent to one end of the body (151a) and may be inserted into a first insertion hole (12Sa, see FIG. 13). The second pin (151bb) may be adjacent to the other end of the body (151a) and may be inserted into the second insertion hole (12Sb, see FIG. 13). The projection (151c) may protrude from the upper surface of the body (151a). The first projection (151ca) may be adjacent to one end of the body (151a), and the second projection (151cb) may be adjacent to the other end of the body (151a). Fastening member(s) (Ff), such as a screw, may pass through the body (151a) and be fastened to the bottom part (12A) of the frame (12), thereby allowing the fastening member(s) (Ff) to fix the first bar (150A) to the frame (12).

[0105] The second bar (150B) may include a body (152a), a pin (152b, pin), and a projection (152c). The body (152a) may be located on the bottom part (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 FIG. 25) may protrude from the lower surface of the body (152a) and may be inserted into an insertion hole (12S) of the bottom part (12A). The first pin (152ba) may be adjacent to one end of the body (152a) and may be inserted into a third insertion hole (12Sc, see FIG. 13). The second pin (152bb) may be adjacent to the other end of the body (152a) and may be inserted into the fourth insertion hole (12Sd, see FIG. 13). The projection (152c) may protrude from the upper surface of the body (152a). The first projection (152ca) may be adjacent to one end of the body (152a), and the second projection (152cb) may be adjacent to the other end of the body (152a). Fastening member(s) (Fg), such as a screw, may pass through the body (152a) and be fastened to the bottom part (12A) of the frame (12), thereby allowing the fastening member(s) (Fg) to secure the second bar (150B) to the frame (12).

[0106] A fixing portion (12L) may be formed on the frame (12) adjacent to the edge of the frame (12). The fixing portion (12L) may be formed on the upper surface of the side part (12B) of the frame (12). The fixing portion (12L) may protrude from the upper surface of the side part (12B). A hole may be formed in the fixing portion (12L). The fixing portion (12L) may correspond to a column (111L, see FIG. 12) of the top case (111). Each of the plurality of fixing portions (12La, 12Lb, 12Lc) may be aligned with each of the plurality of columns (111La, 111Lb, 111Lc).

[0107] The gasket (G10) may be electrically conductive. The gasket (G10) may include an adhesive layer or adhesive material such as tape. The gasket (G10) may be referred to as a conductive tape (G10). One side of the gasket (G10) may be attached to the first bar (150A). The gasket (G10) may extend from the first bar (150A), and a portion of the gasket (G10) may be located on the first fixing part (12La). The gasket (G10) may be attached to the first fixing part (12La).

[0108] The gaskets (G11, G12, G13) may be electrically conductive. The gaskets (G11, G12, G13) may include an adhesive layer or adhesive material such as tape. The gaskets (G11, G12, G13) may be referred to as conductive tapes (G11, G12, G13). The gaskets (G11, G12, G13) may have a Y shape. One side of the first gasket (G11) may be attached to the first bar (150A) and may extend from the first bar (150A). One side of the second gasket (G12) may be attached to the second bar (150B) and may extend from the second bar (150B). The 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 fixed part (12Lc). The third gasket (G13) may be attached to the third fixed part (12Lc). Alternatively, the gaskets (G11, G12, G13) may consist of one or two gaskets. Alternatively, either the first gasket (G11) or the second gasket (G12) may be omitted.

[0109]

[0110] Referring to FIG. 15, the DMD driver (17) may be positioned on the bar (150). The first protrusions (151ca, 152ca) of the bar (150) may pass through the DMD driver (17). The DMD driver (17) may be electrically connected to the bar (150). Fastening members (Fh), such as screws, may pass through the DMD driver (17) and be fastened to the bottom part (12A) of the frame (12), thereby allowing the fastening members (Fh) to secure the DMD driver (17) to the frame (12).

[0111] The DMD driver (17) can drive the DMD (see FIG. 12, Digital Micromirror Device) of the engine (14). The DMD driver (17) may be equipped with a Printed Circuit Board (PCB). The DMD driver (17) may 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).

[0112]

[0113] Referring to FIGS. 16 and 17, the DMD driver (17) may include a pogo pin (17P), a first connector (171), a second connector (172), a third connector (173), and a board connector (170).

[0114] The board connector (170) can be mounted on the upper surface of the DMD driver (17).

[0115] The pogo pin (17P) can be mounted on the lower surface of the DMD driver (17) and can pass through a through hole (12HP, see FIG. 13) formed in the frame (12). The pogo pin (17P) can be referred to as a connection pin (17P), a terminal (17P), or a connector (17P).

[0116] The first connector (171) can be mounted on the lower surface of the DMD driver (17) and positioned corresponding to the first hole (12H1, see FIG. 13) formed in the frame (12). The first connector (171) may be a connector for connecting the DMD (see FIG. 12) of the engine (14).

[0117] The second connector (172) can be mounted on the lower surface of the DMD driver (17) and positioned corresponding to the second hole (12H2, see FIG. 13) formed in the frame (12). The second connector (172) may be a connector for connecting a fan (16, see FIG. 12).

[0118] The third connector (173) can be mounted on the lower surface of the DMD driver (17) and positioned corresponding to the third hole (12H3, see FIG. 13) formed in the frame (12). The third connector (173) may be a connector for connecting a distance sensor (10S, see FIG. 2).

[0119] The DMD driver (17) can cover the bottom part (12A) of the frame (12), and the connectors (171, 172, 173, 17P) of the DMD driver (17) can be positioned corresponding to the holes of the bottom part (12A).

[0120] The main board (18) can cover the DMD driver (17). Fastening members (Fi), such as screws, can pass through the main board (18) and be fastened to the bottom part (12A) of the frame (12), thereby securing the main board (18) to the frame (12). The lower surface of the main board (18) can be spaced apart from the upper surface of the DMD driver (17). The main board (18) can be offset from the DMD driver (17) toward the side part (12B) of the frame (12), and the main board (18) can cover at least some of the holes in the side part (12B). Accordingly, connectors mounted on the lower surface of the main board (18) can be positioned corresponding to the holes in the side part (12B).

[0121] Meanwhile, either the first substrate (17) or the second substrate (18) may be omitted. One substrate may be provided as a main board and a DMD driver. Alternatively, one or more substrates in addition to the first substrate (17) and the second substrate (18) may be mounted on the frame (12).

[0122] The main board (18) may be equipped with a Printed Circuit Board (PCB). The main board (18) may be equipped with a System On Chip (SOC). The main board (18) may control the head (10). The main board (18) may be electrically connected to various electronic components of the head (10) via a cable. The main board (18) may be referred to as a second board (18), a second substrate (18), or a second PCB (18). The main board (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).

[0123] The board connector (180) can be mounted on the lower surface of the main board (18). The board connector (180) of the main board (18) can be coupled to the board connector (170) of the DMD driver (17), thereby electrically connecting the main board (18) and the DMD driver (17).

[0124] The first connector (181) can be mounted on the upper surface of the main board (18). The first connector (181) may be a connector for connecting an LED driver (14D, see FIG. 12).

[0125] The second connector (182) can be mounted on the upper surface of the main board (18). The second connector (182) may be a connector for connecting a communication module (10W). The second connector (182) may be a connector for connecting a WIFI module.

[0126] The third connector (183) can be mounted on the lower surface of the main board (18) and positioned corresponding to the third hole (12H3) formed in the frame (12). The third connector (183) may be a connector for connecting an interface (13, see FIG. 8).

[0127] The fourth connector (184) can be mounted on the lower surface of the main board (18) and positioned corresponding to the fourth hole (12H4) formed in the frame (12). The fourth connector (184) may be a connector for connecting a focus motor (10M, see FIG. 10).

[0128] The fifth connector (185) can be mounted on the lower surface of the main board (18) and positioned corresponding to the fifth hole (12H5) formed in the frame (12). The fifth connector (185) may be an HDMI terminal and may be referred to as a port. Alternatively, the fifth connector (185) may be a different type of terminal.

[0129] The sixth connector (186) can be mounted on the lower surface of the main board (18) and positioned corresponding to the fifth hole (12H5) formed in the frame (12). The sixth connector (186) may be a USB-C type (or other type of USB) terminal and may be referred to as a port. Alternatively, the sixth connector (186) may be a different type of terminal.

[0130] Either of the fifth and sixth connectors (185, 186) may be omitted. In addition to the fifth and sixth connectors (185, 186), one or more additional terminals may be provided.

[0131] The seventh connector (187) can be mounted on the upper surface of the main board (18). The seventh connector (187) may be a connector for connecting a speaker (19, see FIG. 18).

[0132] The eighth connector (188) can be mounted on the upper surface of the main board (18). The eighth connector (188) may be a connector for connecting an IR sensor (10F).

[0133] The ninth connector (189) can be mounted on the upper surface of the main board (18). The ninth connector (189) may be a connector for connecting an IR sensor (10R).

[0134]

[0135] Referring to FIGS. 17 and 18, an opening (12E) may be formed in the frame (12). The opening (12E) may be formed by penetrating the bottom part (12A) and the side part (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.

[0136] A fixing pin (12P) may be formed in the frame (12). The fixing pin (12P) may protrude from the upper surface of the bottom part (12A) and / or the upper surface of the side part (12B). The fixing pins (12P) may be formed around the opening (12E).

[0137] The speaker (19) may be positioned corresponding to the opening (12E). The speaker box (190) may have a Y shape overall. The speaker box (190) may be referred to as an enclosure (190), a housing (190), or a case (190). A holder (190H) may be attached to the speaker box (190) and may have a ring shape overall. The holder (190H) may be elastic. The diameter of the hole in the holder (190H) may be smaller than the diameter of the fixing pin (12P). Multiple holders (190H) may be arranged along the lateral side of the speaker box (190). Multiple fixing pins (12P) of the frame (120) may be inserted and fixed into multiple holders (190H) of the speaker (19). Accordingly, the speaker (19) may be attached to the frame (12).

[0138] Meanwhile, FIG. 18 may illustrate a second assembly (10B). The second assembly (10B) may be referred to as a lower assembly (10B). The second assembly (10B) may include a frame (12), a bar (150), a DMD driver (17), a main board (18), a speaker (19), etc.

[0139]

[0140] Referring to FIGS. 19 and 20, the speaker (19) may be referred to as a speaker assembly (19). The speaker (19) may be connected to an external terminal via a 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).

[0141] The first speaker unit (191) may be located in the first hole (1901) of the speaker box (190). The first speaker unit (191) may include a speaker frame (191F), a yoke (191a), a magnet (191b), a plate (191c), a bobbin (191d), a coil (191e), a diaphragm (191g), a damper (191h), and an edge (191i).

[0142] The speaker frame (191F) may have the shape of a square frame corresponding to the first hole (1901). The speaker frame (191F) may be positioned on the first recess (1901R) forming the first hole (1901). For example, four screws may 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 box (190) and be positioned in the internal space (190S).

[0143] The yoke (191a) may be located in the internal space (190S) of the speaker box (190) and may be fixed to the fixed part (191FF) of the speaker frame (191F). The yoke (191a) may have a cup shape.

[0144] The magnet (191b) can be placed inside the yoke (191a). The magnet (191b) can have a cylindrical shape. The plate (191c) can be positioned on the magnet (191b) and can have a disc shape.

[0145] The bobbin (191d) may be located in the air gap between the plate (191c) and the yoke (191a) and may have a hollow cylinder shape. The coil (191e) may be formed on the outer surface of the bobbin (191d) and may be called a voice coil (191e). The coil (191e) may be connected to a tinsel wire.

[0146] The diaphragm (191g) can be attached to the upper part of the bobbin (191d). The diaphragm (191g) may have a cone shape. Alternatively, the diaphragm (191g) may have a dome or disc shape. A cone-shaped diaphragm (191g) may be referred to as cone paper (191g). A dust cap (191gg) may cover the diaphragm (191g) and the bobbin (191d). One side of the elastic damper (191h) may be fixed to a fixed part (191FF) of the speaker frame (191F), and the other side of the damper (191h) may be fixed to the bobbin (191d). The damper (191h) can have a wave shape and can support the vibration of the diaphragm (191g).

[0147] The edge (191i) can connect the edge of the diaphragm (191g) to the speaker frame (191F). The edge (191i) can be elastic and can support the vibration of the diaphragm (191g). The edge (191i) can have a ring shape and can have an inverted U-shaped cross-section. The edge (191i) can be called a surround (191i).

[0148] When magnetic field lines are formed in the air gap between the magnet (191b) and the yoke (191a) and current flows through the coil (191e), a Lorentz force may be generated. The magnitude of the Lorentz force may 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 may be perpendicular to the plane formed by the magnetic flux density and the current.

[0149] Accordingly, the diaphragm (191g) of the first speaker unit (191) can vibrate up and down. In response to the vibration of the diaphragm (191g), the air inside the speaker box (190) also resonates, and its pressure can change.

[0150] The second speaker unit (192) may be located in the second hole (1902) of the speaker box (190). The second speaker unit (192) may include a speaker frame (192F), a yoke (192a), a magnet (192b), a plate (192c), a bobbin (192d), a coil (192e), a diaphragm (192g), a damper (192h), and an edge (192i).

[0151] The speaker frame (192F) may have the shape of a square frame corresponding to the second hole (1902). The speaker frame (191F) may be positioned on the second recess (1902R) forming the second hole (1902). For example, four screws may 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 box (190) and be positioned in the internal space (190S).

[0152] The yoke (192a) may be located in the internal space (190S) of the speaker box (190) and may be fixed to the fixed part (192FF) of the speaker frame (192F). The yoke (192a) may have a cup shape.

[0153] The magnet (192b) can be placed inside the yoke (192a). The magnet (192b) can have a cylindrical shape. The plate (192c) can be positioned on the magnet (192b) and can have a disc shape.

[0154] The bobbin (192d) may be located in the air gap between the plate (192c) and the yoke (192a) and may have a hollow cylinder shape. The coil (192e) may be formed on the outer surface of the bobbin (192d) and may be called a voice coil (192e). The coil (192e) may be connected to a tinsel wire.

[0155] The diaphragm (192g) can be attached to the upper part of the bobbin (192d). The diaphragm (192g) may have a cone shape. Alternatively, the diaphragm (192g) may have a dome or disc shape. A cone-shaped diaphragm (192g) may be referred to as cone paper (192g). A dust cap (192gg) may cover the diaphragm (192g) and the bobbin (192d). One side of the elastic damper (192h) may be fixed to a fixed part (192FF) of the speaker frame (192F), and the other side of the damper (192h) may be fixed to the bobbin (192d). The damper (192h) can have a wave shape and can support the vibration of the diaphragm (192g).

[0156] The edge (192i) can connect the edge of the diaphragm (192g) to the speaker frame (192F). The edge (192i) can be elastic and can support the vibration of the diaphragm (192g). The edge (192i) can have a ring shape and can have an inverted U-shaped cross-section. The edge (192i) can be called a surround (192i).

[0157] When magnetic field lines are formed in the air gap between the magnet (192b) and the yoke (192a) and current flows through the coil (192e), a Lorentz force may be generated. The magnitude of the Lorentz force may 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 may be perpendicular to the plane formed by the magnetic flux density and the current.

[0158] Accordingly, the diaphragm (192g) of the second speaker unit (192) can vibrate up and down. In response to the vibration of the diaphragm (192g), the internal air of the speaker box (190) also resonates, and its pressure can change.

[0159] The first speaker unit (191) and the second speaker unit (192) may be spaced apart from each other in one direction (DRa). The centerline (19L) of the speaker (19) may pass through the center of the speaker (19) and be orthogonal to one direction (DRa). The four corners of each of the square frame-shaped speaker frames (191F, 192F) may be located at different distances from the centerline (19L). With respect to the top surface (190U) of the speaker box (190), the four corners of each of the speaker frames (191F, 192F) may be located lower the further they are from the centerline (19L). Corresponding to the speaker frames (191F, 192F), the height of the recesses (1901R, 1902R) where the speaker frames (191F, 192F) are located may also vary depending on the location.

[0160] 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 centerline (19L) and at a first depth from the top surface (190U) of the speaker box (190). The first depth may be 0 or greater than 0. The second corner (191Fb) may be located at a second distance (D1b) greater than the first distance (D1a) from the centerline (19L) and at a second depth greater than the first depth from the top surface (190U) of the speaker box (190). The third corner (191Fc) may be located at a third distance (D1c) greater than the second distance (D1b) from the centerline (19L) and at a third depth greater than the second depth from the upper surface (190U) of the speaker box (190). The fourth corner (191Fd) may be located at a fourth distance (D1d) greater than the third distance (D1c) from the centerline (19L) and at a fourth depth greater than the third depth from the upper surface (190U) of the speaker box (190).

[0161] The speaker frame (192F) of the first 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 centerline (19L) and at a first depth from the top surface (190U) of the speaker box (190). The first depth may be 0 or greater than 0. The second corner (192Fb) may be located at a second distance (D2b) greater than the first distance (D2a) from the centerline (19L) and at a second depth greater than the first depth from the top surface (190U) of the speaker box (190). The third corner (192Fc) may be located at a third distance (D2c) greater than the second distance (D2b) from the centerline (19L) and at a third depth greater than the second depth from the upper surface (190U) of the speaker box (190). The fourth corner (192Fd) may be located at a fourth distance (D2d) greater than the third distance (D2c) from the centerline (19L) and at a fourth depth greater than the third depth from the upper surface (190U) of the speaker box (190).

[0162] Accordingly, the first speaker unit (191) and the second speaker unit (192) can be positioned at an angle with respect to the speaker box (190). As a result, the sound quality of the speaker (19) can be improved.

[0163]

[0164] Referring to FIGS. 20 and 21, a passive radiator (190P) can be mounted on a speaker box (190). Speaker units (191, 192) can be mounted on the top of the speaker box (190), and the passive radiator (190P) can be mounted on the bottom of the speaker box (190). The passive radiator (190P) can seal the internal space (190S) of the speaker box (190) together with the speaker units (191, 192). A first passive radiator (193) can be positioned corresponding to a first speaker unit (191). A second passive radiator (194) can be positioned corresponding to a second speaker unit (192).

[0165] Meanwhile, the speaker units (191, 192) may be referred to as active speaker units (191, 192), active drivers (191, 192), or active transducers (191, 192, active transducers).

[0166] 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 box (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 box (190). The edge (193b) may have elasticity and may support vibrations of the diaphragm (193a). The edge (193b) may have a ring shape and may have an inverted U-shaped cross-section.

[0167] 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 box (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 box (190). The edge (194b) may have elasticity and may support vibrations of the diaphragm (194a). The edge (194b) may have a ring shape and may have an inverted U-shaped cross-section.

[0168] Accordingly, the passive radiator (190P) can vibrate in response to changes in the internal air pressure of the speaker box (190) due to the operation of the speaker units (191, 192) to produce (low-frequency) sound. The first passive radiator (193) may be directed toward the first opening (12Ea) of the frame (12), and the sound from the first passive radiator (193) may pass through the first opening (12Ea). For example, with respect to the bottom part (12A), the inclination of the first passive radiator (193) may be greater than the inclination of the first opening (12Ea). The second passive radiator (194) may be directed toward the second opening (12Eb) of the frame (12), and the sound of the second passive radiator (193) may pass through the second opening (12Eb). For example, with respect to the bottom part (12A), the slope of the second passive radiator (194) may be greater than the slope of the second opening (12Eb).

[0169]

[0170] Referring to FIGS. 22 and 23, the bottom case (112) may include a bottom part (112A) and a side part (112B). The bottom part (112A) may form the bottom of the bottom case (112). The bottom part (112A) may have a funnel shape. The width of the bottom part (112A) may decrease as it approaches the bottom of the bottom part (112A). A central hole (112H) may be formed in the bottom part (112A). The side part (112B) may extend along the edge of the bottom part (112A). The side part (112B) may be curved upward from the bottom part (112A).

[0171] The second assembly (10B) can be accommodated inside the bottom case (112). The second assembly (10B) can cover the central hole (112H) of the bottom case (112). A bottom hole (112R) can be formed in the bottom part (112A) and can be positioned corresponding to the passive radiator (190P, see FIG. 21) of the speaker (19). The part where the bottom hole (112R) is formed can be called a grille. A first bottom hole (112Ra) can be positioned corresponding to the first passive radiator (193). A second bottom hole (112Rb) can be positioned corresponding to the second passive radiator (194). Accordingly, the sound of the passive radiator (190P) of the speaker (19) can be output to the outside of the head (10) through the bottom hole (112R).

[0172] A plurality of support members (112L) may be formed on the bottom part (112A) of the bottom case (112) and may be aligned with a plurality of fixing members (12L) of the second assembly (10B). A plurality of fixing members (12L) may be located on the plurality of support members (112L).

[0173] Meanwhile, insertion holes (112Ga, 112Gb) may be formed in the bottom part (112A) of the bottom case (112). The insertion hole (112Ga) may be positioned corresponding to the fifth connector (185, see FIG. 16) of the main board (18). The fifth connector (185) may be an HDMI terminal and may be referred to as a port. The insertion hole (112Gb) may be positioned corresponding to the sixth connector (186, see FIG. 16) of the main board (18). The sixth connector (186) may be a USB-C type (or other type of USB) terminal and may be referred to as a port.

[0174]

[0175] Referring to FIGS. 23 through 25, the first assembly (10A) can cover the second assembly (10B). The projector (P) of the first assembly (10A) can be placed in a semicircular area of ​​the head (10), and the fan (16) of the second assembly (10B) can be placed in the remaining semicircular area of ​​the head (10). The first speaker unit (191) can be directed toward the cover (10C, see FIG. 2) through the first speaker hole (111Ha, see FIG. 12) of the top case (111). The second speaker unit (192) can be directed toward the cover (10C, see FIG. 2) through the second speaker hole (111Hb, see FIG. 12) of the top case (111). Accordingly, the sound of the speaker units (191, 192) can be output to the outside of the head (10) through the cover (10C). A speaker (19) equipped with speaker units (191, 192) can form a stereo speaker.

[0176] Meanwhile, the speaker (19) is connected to the frame (12) and the projector (P) is connected to the top case (111), thereby preventing or reducing the transmission of vibrations from the speaker (19) to the projector (P).

[0177] The protrusions (112K) may protrude from the inner surface of the side part (112B) of the bottom case (112). Multiple protrusions (112K) may be spaced apart from each other in the circumferential direction of the side part (112B).

[0178] The connecting portion (111K) may protrude from the bottom of the top case (111) adjacent to the edge of the top case (111). The connecting portion (111K) may have a hole or groove into which a projection (112K) is engaged. A plurality of connecting portions (111K) may be positioned corresponding to a plurality of projections (112K).

[0179] Accordingly, the first assembly (10A) can be coupled to the bottom case (112) by hook-coupled the coupling part (111K) to the projection (112K).

[0180] A plurality of columns (111L) of the first assembly (10A) may be positioned on a plurality of fixed parts (12L). A third part (153) of the bridge (15) may be positioned between the columns (111L) and the fixed parts (12L). Fastening members (Fj), such as screws, may be fastened to the columns (111L) by passing through the supporting parts (112L, see FIG. 22) and the fixed parts (12L). The fastening member (Fj) may have a cap covering the head of the screw, and said cap may form the outer surface of the fastening member (Fj).

[0181] Accordingly, the head (10) can be assembled by combining the bottom case (112) and the second assembly (10B) with the first assembly (10A).

[0182]

[0183] Referring to FIG. 24 together with FIG. 9 and 17, the gasket (G10) may be sandwiched between the first fixing part (12La) and the third part (153) of the first bridge (15A). The gasket (G10) may be in contact with the first bridge (15A) and electrically connected thereto. Accordingly, the cover (10C) having a first outer flap (10CM1) in contact with the first bridge (15A) may be electrically grounded to the main board (18) through the first bridge (15A), the gasket (G10), the first bar (150A), and the DMD driver (17) (and vice versa).

[0184] Likewise, a cover (10C) having a third outer flap (10CM3) in contact with a third bridge (15C) can be electrically grounded to the main board (18) through the third bridge (15C), gaskets (G11, G12, G13), bars (150A, 150B, bars), and DMD driver (17) (the reverse is also true).

[0185]

[0186] Referring to FIG. 25 together with FIG. 2, the lens (14L) can project a beam, i.e., an image, generated by the DMD (Digital Micromirror Device) of the engine (14, see FIG. 12) onto a flat surface such as a screen, wall, or ceiling. The lens (14L) may be adjacent to the inner surface of the side part (112B) of the bottom case (112). A cap (14PC) may be located in front of the lens (14L). The cap (14PC) may be located between the lens (14L) and the side part (112B) and may be coupled to the side part (112B). The cap (14PC) may face a hole (see FIG. 2 and 4) formed in the side part (112B). The cap (14PC) may have a funnel shape. The lens (14L) and the cap (14PC) may be exposed to the outside of the head (10). The cap (14PC) can guide the path of light (image) passing through the lens (14L). The engine (14), the light source providing light to the engine (14), the lens (14L), and the cap (14PC) may be components of the projector (P).

[0187] A focus motor (10M, see FIG. 23) may be adjacent to a lens (14L). The focus motor (10M) can adjust the lens (14L) to focus an image generated by an engine (14, see FIG. 12). The focus motor (10M) may operate automatically. Meanwhile, an accelerometer may be mounted inside the head (10). The focus motor (10M) and the accelerometer may be components of a projector (P).

[0188] The distance sensor (10S) may be adjacent to the lens (14L). The distance sensor (10S) may be mounted on the side part (112B) of the bottom case (112) via a bracket (10SF, see FIG. 4). The distance sensor (10S) may face a hole (see FIG. 2 and 4) formed in the side part (112B). The distance sensor (10S) may be positioned between the cap (14PC) and the first side hole (112VBa). The distance sensor (10S) may be a Time of Flight (TOF) sensor. The distance sensor (10S) may measure the distance between the distance sensor (10S) and an object in front of the distance sensor (10S).

[0189] The IR (Infrared) sensor (10F) may be adjacent to the lens (14L). The IR sensor (10F) may be opposite to the distance sensor (10S) with respect to the lens (14L). The IR sensor (10F) can detect IR signals. A cover (10FC) may be mounted in a hole (see FIG. 2 and 4) in the front part of the side part (112B) of the bottom case (112) and may cover the IR sensor (10F). The IR sensor (10F) may be referred to as the front IR sensor (10F). A remote controller may communicate wirelessly with the IR sensor (10F). That is, the IR sensor (10F) may exchange infrared signals with the remote controller. Meanwhile, the IR indicator (10FD) may be exposed to the outside of the head (10) adjacent to the cover (10FC) and may indicate to the user whether the IR sensor (10F) has detected an IR signal through light. The IR indicator (10FD) may be omitted.

[0190] The IR (Infrared) sensor (10R) can be opposite to the IR sensor (10F). The IR sensor (10R) can detect IR signals. The cover (10RC) can be mounted in the hole (see FIG. 4 and 25) at the rear of the side part (112B) of the bottom case (112) and can cover the IR sensor (10R). The IR sensor (10R) can be referred to as the rear IR sensor (10R). The remote controller can communicate wirelessly with the IR sensor (10R). That is, the IR sensor (10R) can exchange 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 detected an IR signal. The IR indicator may be omitted.

[0191] The groove (112G) may be recessed from the bottom part (112A) of the bottom case (112). Holes (112Ga, 112Gb) may be formed in the groove (112G). The fifth connector (185) of the main board (18) may be exposed to the outside of the head (10) through the hole (112Ga). For example, a user may connect an HDMI cable to the fifth connector (185). The sixth connector (186) of the main board (18) may be exposed to the outside of the head (10) through the hole (112Gb). For example, a user may connect a USB to the sixth connector (186). One side of the cover (JC) may be fixed to the groove (112G). The other side of the cover (JC) may be detachably hook-coupled to the groove (112G). The user can cover the fifth connector (185) and the sixth connector (186) with the cover (JC) or open the fifth connector (185) and the sixth connector (186). The cover (JC) may be referred to as a detachable cover (JC).

[0192] A vent hole (112V) may be formed in the bottom part (112A) and / or the side part (112B). The part where the vent hole (112V) is formed may be called a grille. Airflow formed by the fan (16, see FIG. 23) may pass through the vent hole (112V).

[0193] A bottom hole (112VA) may be formed in the bottom part (112A). The bottom hole (112VA) may be formed in the front part of the bottom part (112A). A bottom hole (112R) may be formed in the rear part of the bottom part (112A).

[0194] A side hole (112VB) may be formed in the side part (112B). The side hole (112VB) may be formed in the front part of the side part (112B). A first side hole (112VBa) may be formed in the right side of the side part (112B). A second side hole (112VBb) may be formed in the left side of the side part (112B).

[0195]

[0196] Referring to FIGS. 26 and 27, one end of the first cable (C31) may be electrically connected to the first connector (171) of the DMD driver (17). The first cable (C31) may pass through the slit (17H) of the DMD driver (17) and the slit (18H, see FIG. 16) of the main board (18). The other end of the first cable (C31) may be electrically connected to the DMD of the engine (14). The first cable (C31) may be a Flexible Flat Cable (FFC) or another type of cable.

[0197] One end of the second cable (C32) can be electrically connected to the fan (16). The second cable (C32) can be bent from the right side of the DMD driver (17) to the rear of the DMD driver (17). The other end of the second cable (C32) can be electrically connected to the third connector (173) of the DMD driver (17). The second cable (C32) may be a Flexible Flat Cable (FFC) or another type of cable.

[0198] One end of the third cable (C33) can be electrically connected to a distance sensor (10S). The third cable (C33) can pass through a third hole (12H3) from the outer side of the side part (12B) of the frame (12). The other end of the third cable (C33) can be electrically connected to a third connector (173) of a DMD driver (17). The third cable (C33) can be a Flexible Flat Cable (FFC) or another type of cable.

[0199] One end of the fourth cable (C34) can be electrically connected to the focus motor (10M). The fourth cable (C34) can pass through the fourth hole (12H4) from the outer side of the side part (12B) of the frame (12). The other end of the fourth cable (C34) can be electrically connected to the fourth connector (184) of the main board (18). The fourth cable (C34) may be a Flexible Flat Cable (FFC) or another type of cable.

[0200] 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) of the main board (18). The fifth cable (C35) can be a Flexible Flat Cable (FFC) or another type of cable.

[0201] One end of the sixth cable (C36) can be electrically connected to the first connector (181) of the main board (18). The sixth cable (C36) can be folded back toward the rear of the main board (18) and pass through the fifth hole (125H). The sixth cable (C36) can be inserted into the space between the frame (12) and the shield (14S) from the outer side of the side part (12B). The other end of the sixth cable (C36) can be electrically connected to the connector (14DC, see FIG. 12) of the LED driver (14D). The sixth cable (C36) can be a Flexible Flat Cable (FFC) or another type of cable.

[0202] One end of the seventh cable (C37) can be electrically connected to the connector (14DL) of the LED driver (14D). The seventh cable (C37) can extend toward the engine (14) beyond the fans (16b, 16c). A light source providing 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) may be a connector on the substrate equipped with a light source providing blue light. The second connector (14Lb) may be a connector on the substrate equipped with a light source providing red light. The third connector (14Lc) may be a connector on the substrate equipped with a light source providing green light. The first part of the seventh cable (C37) can be electrically connected to the first connector (14La). The second part of the seventh cable (C37) can be electrically connected to the second connector (14Lb). The third portion of the seventh cable (C37) can be electrically connected to the third connector (14Lc). The seventh cable (C37) may be a Flexible Flat Cable (FFC) or another type of cable.

[0203]

[0204] Referring to FIG. 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 heatsink (14a) and pass through the third hole (12H3) from the outer surface of the side part (12B). The other end of the eighth cable (C38) can be electrically connected to the third connector (183) of the main board (18). The eighth cable (C38) may be a Flexible Flat Cable (FFC) or another type of cable.

[0205] Meanwhile, the interface (13) can be electrically grounded to the main board (18) through the eighth cable (C38) (and vice versa).

[0206]

[0207] Referring to FIG. 29, one end of the ninth cable (C39) can be electrically connected to an IR sensor (10R). The ninth cable (C39) can be inserted from the mounting portion (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 main board (18). The ninth cable (C39) may be a Flexible Flat Cable (FFC) or another type of cable.

[0208] One end of the 10th cable (C40) can be electrically connected to the speaker (19). The 10th cable (C40) can be extended from the speaker (19) toward the 7th connector (187) of the main board (18). The other end of the 10th cable (C40) can be electrically connected to the 7th connector (187) of the main board (18).

[0209]

[0210] Referring again to FIG. 17, one end of the 11th cable (C41) can be electrically connected to a communication module (10W). For example, a WIFI module of the communication module (10W) can be electrically connected to the 11th cable (C41). The 11th cable (C41) can be extended from the communication module (10W) toward the second connector (182) of the main board (18). The other end of the 11th cable (C41) can be electrically connected to the second connector (182) of the main board (18).

[0211]

[0212] Referring to FIG. 30, the pole (30) can be extended vertically and can connect the head (10) and the base (40). A support plate (31) can be attached to the top of the pole (30) and to the head (10). A holder (32) can be attached to the bottom of the pole (30) and to the base (40). The pole (30) may be made of a metal material such as aluminum (Al).

[0213] As described above and below, the head (10) can be electrically grounded to the base (40) through the support plate (31) and pole (30) (and vice versa). That is, by strengthening the grounding of the projector device (1) (i.e., expanding the grounding area), malfunction or damage to the electronic components of the projector device (1) caused by static electricity (E) can be minimized.

[0214]

[0215] Referring to FIGS. 31 and 32, the substrate (39P), the insulating layer (39N), and the support plate (31) can be sequentially positioned on the bottom cover (39C).

[0216] The bottom cover (39C) may have a dome shape that is convex downwards overall. The groove (39CG) may be recessed from the lower surface of the bottom cover (39C). The groove (39CG) may extend from the center of the bottom cover (39C) toward the edge of the bottom cover (39C). The groove (39CG) may be a U-shaped groove. A hole (39CH) may be formed in the groove (39CG). The hole (39CH) may extend along the groove (39CG). The width of the hole (39CH) may gradually decrease from the center of the bottom cover (39C) toward the edge of the bottom cover (39C).

[0217] The second cable (C2) can pass through the hole (39CH) of the bottom cover (39C). A portion of the second cable (C2) may be located on the bottom cover (39C). A cable connector (C20) may be connected to the end of the second cable (C2).

[0218] The wall (39CW) may protrude from the upper surface of the bottom cover (39C) and may be located between the hole (39CH) of the bottom cover (39C) and the edge of the bottom cover (39C). The wall (39CW) may form a closed loop. Alternatively, the wall (39CW) may form an open loop. The wall (39CW) may be an annular wall (39CW). The second cable (C2) may be placed inside the wall (39CW). That is, the wall (39CW) may form a placement space for the second cable (C2) and prevent the second cable (C2) from coming loose.

[0219] A connecting portion (39CA) may protrude from the upper surface of the bottom cover (39C) and may be located between the wall (39CW) of the bottom cover (39C) and the edge of the bottom cover (39C). Multiple connecting portions (39CA) may be arranged along the wall (39CW). A guide pin (39CB) may protrude from the upper surface of the bottom cover (39C). The guide pin (39CB) may be adjacent to a connecting portion (39CA). For example, each of two guide pins (39CB) may be adjacent to each of two connecting portions (39CA) among four connecting portions (39CA).

[0220] The substrate (39P) may have the shape of a disc having holes throughout. The diameter of the substrate (39P) may correspond to the diameter of the bottom cover (39C). The substrate (39P) may be a Printed Circuit Board (PCB). A terminal (39T) may be mounted on the upper surface of the substrate (39P). A pair of terminals (39T) may be adjacent to each other but spaced apart from each other. A connector (39U, see FIG. 34) may be mounted on the lower surface of the substrate (39P). The pins (39UP, pins) of the connector (39U) may penetrate the substrate (39P). A hole (39PH) may be formed in the substrate (39P). A hole (39PH) may be formed in the center of the substrate (3P).

[0221] And, the substrate (39P) may be positioned on the bottom cover (39C). The connecting portions (39CA) of the bottom cover (39C) may support the substrate (39P). The connecting portions (39CA) of the bottom cover (39C) may be inserted into the holes (39PA) of the substrate (39P). The guide pins (39CB) of the bottom cover (39C) may be inserted into the holes (39PB) of the substrate (39P). The connector (39U, see FIG. 34) of the substrate (39P) may be positioned inside the wall (39CW) of the bottom cover (39C). A cable connector (C20) may be coupled to the connector (39U) of the substrate (39P), thereby electrically connecting a second cable (C2) to the substrate (39P). The hole (39PH) of the substrate (39P) can be positioned to correspond to the hole (39CH) of the bottom cover (39C).

[0222] The insulating layer (39N) may have the shape of a disc having holes throughout. The diameter of the insulating layer (39N) may correspond to the diameter of the substrate (39P). A hole (39NH) may be formed in the insulating layer (39N) and may be positioned corresponding to a hole (39PH) in the substrate (39P). A hole (39NH) may be formed in the central part of the insulating layer (39N).

[0223] And, the insulating layer (39N) may be positioned on the substrate (39P). The coupling portions (39CA) of the bottom cover (39C) may be inserted into the holes (39NA) of the insulating layer (39N). The guide pins (39CB) of the bottom cover (39C) may be inserted into the holes (39NA) of the insulating layer (39N). The terminals (39T) of the substrate (39P) may be inserted into the holes (39NH, 39NT) of the insulating layer (39N). The pins (39UP) of the connector (39U) may be inserted into the holes (39NP) of the insulating layer (39N). The holes (39NH) of the insulating layer (39N) may be positioned corresponding to the holes (39PH) of the substrate (39P).

[0224] The joint (36) can penetrate 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 joint (36) can protrude from the head (363) of the joint (36). The width of the top (363T) may be smaller than the width of the head (363). The cross-section of the top (363T) may have a shape in which part of a circle is cut off, and the side of the top (363T) may include curved and flat surfaces. Screw threads may be formed on the side of the top (363T).

[0225]

[0226] Referring to FIGS. 32 and 33, the support plate (31) may have the shape of a disc having holes throughout. The diameter of the support plate (31) may be equal to or greater than the diameter of the insulating layer (39N). The support plate (31) may be made of a metal material. A hole (31H) may be formed in the support plate (31). A hole (31H) may be formed in the center of the support plate (31). A recess (31R) may be recessed from the center of the upper surface of the support plate (31), and a hole (31H) may be formed in the recess (31R).

[0227] Additionally, the support plate (31) may be positioned on the insulating layer (39N). The support plate (31) may include an electrically conductive material such as metal, and the insulating layer (39N) may electrically insulate the substrate (39P) and the support plate (31). The coupling portions (39CA) of the bottom cover (39C) may be inserted into the holes (31A) of the support plate (31). The guide pins (39CB) of the bottom cover (39C) may be inserted into the holes (31B) of the support plate (31). The terminals (39T) of the substrate (39P) may be inserted into the holes (31T) of the support plate (31). The pins (39UP) of the connector (39U) may be inserted into the holes (31P) of the support plate (31). The hole (31H) of the support plate (31) can be positioned to correspond to the hole (39NH) of the insulating layer (39N).

[0228] Fastening member(s) (F6), such as a screw, can be fastened to the coupling portion (39CA) of the bottom cover (39C) inserted into the support plate (31). The head of the fastening member (F6) (i.e., the head of the screw) can be positioned on the upper surface of the support plate (31). Accordingly, the support plate (31), the insulating layer (39N), and the substrate (39P) can be coupled to the bottom cover (39C).

[0229] The head (363) of the joint (36) can support the recess (31R) of the support plate (31). The top (363T) of the joint (36) can penetrate the hole (31H) of the recess (31R). The hole (31H) may have a shape corresponding to the cross-section of the top (363T), thereby limiting the rotation of the support plate (31) around 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 positioned between the fixing member (F5) and the recess (31R). Accordingly, the support plate (31) can be coupled to the joint (36).

[0230] Meanwhile, a fixing hole (31F) may be formed in the support plate (31) adjacent to the edge of the support plate (31). A plurality of fixing holes (31F) may be arranged along the edge of the support plate (31).

[0231]

[0232] Referring to FIGS. 34 and 35, the joint (36) may contact the lower surface of the support plate (31) and may extend in a direction intersecting the support plate (31). The joint (36) may be referred to as an ankle (36). The joint (36) may include a body (361), a neck (362), and a head (363).

[0233] The body (361) may form the lower part of the joint (36). The body (361) may have a hollow cylinder shape, and the central axis of the body (361) may extend in a direction (i.e., horizontal direction) that intersects the longitudinal direction (i.e., vertical direction) of the joint (36). The hole (361H) of the body (361) may be a circular hole.

[0234] The neck (362) may protrude from the body (361) toward the support plate (31). A projection (364) may protrude from the side of the neck (362). A first projection (364R) may protrude from the other side of the neck (362). A second projection (364L) may protrude from one side of the neck (362).

[0235] The head (363) can protrude from the neck (362) toward the support plate (31) and support the lower 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).

[0236] The mount (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 and second parts (351, 352) may have a shape that is bent at least once. A joint (36) may be placed between the first part (351) and the second part (352) of the mount (35). A washer (not labeled) may be placed between the body (361) of the joint (36) and the first part (351). A washer (not labeled) may be placed between the body (361) of the joint (36) and the second part (352).

[0237] The hinge shaft (37) may extend in a direction intersecting the joint (36). The central axis of the hinge shaft (37) may extend in a direction intersecting the pole (30, see FIG. 33) (i.e., horizontal direction). The cross-section of the hinge shaft (37) may have a shape in which a portion of a circle is cut off, and the side of the hinge shaft (37) may include curved and flat surfaces. Screw threads may be formed on the side 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 joint (36), and the hole (352H) of the second part (352). The holes (351H, 352H) may have a shape corresponding to the cross-section of the hinge shaft (37), but the hole (361H) may be a circular hole. Thus, the rotation of the mount (35) around the hinge shaft (37) can be restricted, but the joint (36) can rotate around the axis (A, axis) of the hinge shaft (37).

[0238] A fixing member (38), such as a 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 mount (35), and the fixing member (38) can face the second part (352) of the mount (35). Accordingly, the joint (36) can be rotatably coupled to the mount (35) and the hinge shaft (37).

[0239] At least one disc spring (37D) may be placed between the first part (351) of the mount (35) and the head (37H) of the hinge shaft (37), and the body of the hinge shaft (37) may pass through the disc spring (37D). The disc spring (37D) may be convex in the direction toward the head (37H) or in the opposite direction. The disc spring (37D) may generate an elastic force in the axial direction of the hinge shaft (37). A washer (37R) may be placed between the first part (351) and the head (37H) of the hinge shaft (37). A washer (37R) may be placed between the second part (352) and the fixing member (38).

[0240] Accordingly, the joint (36) can be sandwiched between the parts (351, 352) of the mount (35). Due to the frictional force between the joint (36) and the parts (351, 352), the joint (36) can maintain a certain angle with respect to the hinge shaft (37). If a force greater than a certain magnitude than the frictional force is applied to the joint (36), the joint (36) can rotate. By adjusting the connection length between the hinge shaft (37) and the fixing member (38), the frictional force between the joint (36) and the parts (351, 352) can be controlled.

[0241] A groove (35G) may be formed in the first part (351) or the second part (352) of the mount (35). A first groove (351G) may be formed in the first part (351), and a first projection (364R) may be located in the first groove (351G). The first groove (351G) may extend along the rotational trajectory of the first projection (364R). A second groove (352G) may be formed in the second part (352), and a second projection (364L) may be located in the second groove (352G). The second groove (352G) may extend along the rotational trajectory of the second projection (364L).

[0242] In response to the rotation of the joint (36) relative to the hinge shaft (37), if the projection (364) engages with one end or the other end of the groove (35G), the rotation of the joint (36) may be restricted. The angle between the one end and the other end of the groove (35G) relative to the hinge shaft (37) may be greater than 90 degrees. The one end of the groove (35G) may be located at a first angle (theta a) counterclockwise (CCW, see FIG. 34) from the longitudinal axis of the joint (36). For example, the first angle (theta a) may be 15 degrees. The other end of the groove (35G) may be located at a second angle (theta b) clockwise (CW, see FIG. 34) from the longitudinal axis of the joint (36). For example, the second angle (theta b) may be 90 degrees. In this case, the joint (36) and the support plate (31) fixed thereto can rotate within a range of 105 degrees around the hinge shaft (37).

[0243]

[0244] Referring to FIGS. 36 and 37, the top of the pole (30) may be open. The pole (30) may be extended vertically and may be open vertically. The body (300) of the pole (30) may have the shape of a hollow cylinder or pipe that is vertically long. Ribs (301) may protrude from the inner surface of the body (300) and may be spaced apart from each other. The ribs (301) may extend along the length of the body (300). The tops of the ribs (301) may be adjacent to the top of the body (300).

[0245] The fixed portion (350) of the mount (35) may be positioned on the ribs (301). Fastening members (F4), such as screws, may pass through the fixed portion (350) and be fastened to the ribs (301), thereby allowing the fastening members (F4) to secure the mount (35) to the pole (30).

[0246] The pole cap (30C) may include a cap body (30Ca) and legs (30Cb). The cap body (30Ca) may have an overall upwardly convex dome shape. The cap body (30Ca) may enclose the upper part of the mount (35), the lower part of the joint (36), and the structure connecting the mount (35) and the joint (36) (i.e., the hinge shaft (37) and the fixing member (38) of FIG. 34 and 35). The body (361) of the joint (36) may be located inside the cap body (30Ca), and the neck (362) may pass through the hole (30CH) of the cap body (30Ca). The lower end of the cap body (30Ca) may be located on the upper end of the pole (30). The legs (30Cb) can protrude from the bottom of the cap body (30Ca) and can be hooked into a groove (300G) formed on the inner surface of the pole body (300).

[0247] The pole cap (30C) attached to the pole (30) may be adjacent to the groove (39CG) of the bottom cover (39C). The bottom cover (39C) is fixed to the support plate (31) and can rotate around the hinge shaft (37, see FIG. 35) together with the support plate (31). That is, the bottom cover (39C) can rotate relative to the pole cap (30C) that surrounds the hinge shaft (37), and the groove (39CG) may be formed to avoid interference between the rotating bottom cover (39C) and the pole cap (30C). The rotation of the bottom cover (39C) may be limited by one side of the groove (39CG) touching the pole cap (30C). The pad (39CP) can be formed or attached to the groove (39CG) and can mitigate the impact when the groove (39CG) strikes the pole cap (30C).

[0248] The second cable (C2) can be placed inside the pole (30). The second cable (C2) can pass through the hole (300H) formed on the upper part of the pole (30), the hole (30CH) of the pole cap (30C), and the hole (39CH) of the bottom cover (39C). Here, the hole (300H) can be positioned corresponding to the hole (30CH).

[0249]

[0250] Referring to FIGS. 37 and 38, the support plate (31) may face the bottom part (12A) of the frame (12). The support plate (31) may be inserted into the interior of the bottom case (112) through the central hole (112H) of the bottom case (112) and may be positioned on the lower surface of the bottom part (12A) of the frame (12). The head of the fastening member (F6) (see FIG. 33) may be positioned in the hole (12A6) or groove (12A6) formed on the lower surface of the bottom part (12A). The fixing member (F5, see FIG. 33) may be positioned in the hole (12H) or groove (12H) formed on the lower surface of the bottom part (12A). The guide pin (12GP) may protrude from the bottom part (12A) and be inserted into the support plate (31), and may guide the position of the support plate (31).

[0251] The pins (151ba, 151bb, pins) of the first bar (150A, see FIG. 14) and the pins (152ba, 152bb, pins) of the second bar (150B, see FIG. 14) may be exposed to the lower side of the frame (12). The fixing holes (31F) of the support plate (31) may be aligned with the pins (151ba, 151bb, 152ba, 152bb). Fastening members (F7), such as screws, may pass through the fixing holes (31F) and be fastened to the pins (151ba, 151bb, 152ba, 152bb). The head of the fastening member (F7) (i.e., the head of the screw) may be positioned on the lower side of the support plate (31). Accordingly, the support plate (31) may be coupled to the frame (12).

[0252] Meanwhile, the frame (12) may include a non-conductive material such as plastic, and the bar (150) and support plate (31) may include an electrically conductive material such as metal. The bar (150) may be electrically connected to the support plate (31). A main board (18, see FIG. 17) electrically connected to the bar (150) may be electrically grounded to the support plate (31) (and vice versa).

[0253] Meanwhile, the joint (36) and the pole (30) may comprise an electrically conductive material such as metal. The support plate (31) may be electrically connected to the pole (30) through the joint (36). The main board (18, see FIG. 17) electrically connected to the support plate (31) may be electrically grounded to the pole (30) (and vice versa).

[0254] The pogo pin (17P) can be electrically connected to the terminal (39T, see FIG. 33) of the substrate (39P) by contacting it. Each of the pogo pin (17P) and the terminal (39T) can be configured as a pair. Accordingly, the second cable (C2) can be electrically connected to the DMD driver (17) through the substrate (39P), the terminal (39T), and the pogo pin (17P). The main board (18, see FIG. 16 and 17) electrically connected to the DMD driver (17) can be electrically grounded to the second cable (C2) (and vice versa).

[0255]

[0256] Referring to FIGS. 38 and 39, a light source (39L) may be mounted on the lower surface of a substrate (39P). The light source (39L) may be adjacent to the edge of the substrate (39P). Multiple light sources (39L) may be arranged along the edge of the substrate (39P). The substrate (39P) may be a circular or annular substrate. The substrate (39P) may be a Printed Circuit Board (PCB). The light source (39L) may be a Light Emitting Diode (LED). The substrate (39P) may be referred to as an LED substrate (39P). The On / Off, brightness, color, etc. of each light source (39L) may be controlled.

[0257] The diffuser plate (39D) may have a ring shape overall. The diffuser plate (39D) may be located in the gap (G) between the hole (112H) of the bottom case (112) and the bottom cover (39C). The diffuser plate (39D) may block the gap (G). The diffuser plate (39D) may be attached to the bottom case (112) and / or the bottom cover (39C).

[0258] For example, the first fixing member (39Da) may be positioned along the outer edge of the diffuser plate (39D) and may be in contact with the inner wall (112AR) of the bottom case (112). For example, the second fixing member (39Db) may be positioned along the inner edge of the diffuser plate (39D) and may be in contact with the outer wall (39CR) of the bottom cover (39C). For example, the first and second fixing members (39Da, 39Db) may be made of rubber. The diffuser plate (39D) to which the first and second fixing members (39Da, 39Db) are fixed may be coupled to the bottom case (112) and the bottom cover (39C) in a press-fit manner.

[0259] For example, the diffuser plate (39D) between the bottom cover (39C) and the bottom case (112) can be smoothly connected to the bottom cover (39C) and the bottom case (112). The bottom cover (39C), the bottom case (112), and the diffuser plate (39D) can form the lower surface of the bowl.

[0260] The diffuser plate (39D) can be positioned in the light path of the light source (39L). The diffuser plate (39D) can diffuse the light of the light source (39L). The light from multiple light sources (39L) can be realized as surface light in the diffuser plate (39D). That is, the diffuser plate (39D) can form a lighting ring. The substrate (39P), the light source (39L), and the diffuser plate (39D) can be referred to as a lighting module (L). The lighting module (L) can be provided to the user as a mood light. The light from the lighting module (L) can be referred to as ambient light.

[0261]

[0262] Referring to FIG. 40, the base (40) may have a flat cylinder shape overall. Alternatively, the base (40) may have a prismatic shape. The base (40) may include a case (41), a weight (42), a bracket (43), a bottom connector (44), and a substrate (45). The weight (24) may be referred to as a weight bracket (42), a weight plate (42), or a plate (42).

[0263] The case (41) can form the exterior of the base (40). The case (41) may include a top case (411) and a bottom case (412). The top case (411) may form the top of the case (41) and may have a ring or donut shape overall. A hole (411H) may be formed in the center of the top case (411). Alternatively, the hole (411H) may be adjacent to the edge of the top case (411). The bottom case (412) may form the bottom of the case (41) and may have a tub shape that is open upward. The internal space of the base (40) may be formed between the top case (411) and the bottom case (412).

[0264] The weight (42) may be placed in the internal space of the base (40). The weight (42) may have a generally round ring shape. Alternatively, the weight (42) may have an angular ring shape, such as a square ring. A hole (42H) may be formed in the weight (42) and may be aligned with a hole (411H) in the top case (4411). The hole (42H) may be formed in the center of the weight (42). Alternatively, the hole (42H) may be adjacent to the edge of the weight (42). A groove (42G) may be formed from the edge of the weight (42) toward the inside of the weight (42). The groove (42G) may be referred to as a notch (42G). The weight (42) may be made of a metal material. The weight (42) may be located on the bottom case (412). The weight (42) can be attached to the bottom case (412) by a fastening member such as a screw. Multiple weights (42) can be stacked vertically.

[0265] The upper weight (421) may be adjacent to the inner surface of the top case (411). For example, the upper weight (421) may be a single sheet. A hole (421H) may be formed in the center of the upper weight (421). A groove (421G) may be formed from the edge of the upper weight (421) to the inside of the upper weight (421). The upper weight (421) may be referred to as the upper plate (421), the first weight (421), or the first plate (421).

[0266] The middle weight (422) may be located below the upper weight (421). For example, there may be six middle weights (422). The number of middle weights (422) may be adjusted as needed. A hole (422H) may be formed in the center of the middle weight (422). A groove (422G) may be formed from the edge of the middle weight (422) to the inside of the middle weight (422). The middle weight (422) may be referred to as a middle plate (422), a second weight (422), or a second plate (422).

[0267] The lower weight (423) may be located below the middle weight (422). The lower weight (423) may be located on the bottom case (412). For example, the lower weight (423) may be a single sheet. A hole (423H) may be formed in the center of the lower weight (423). A groove (423G) may be formed from the edge of the lower weight (423) to the inside of the lower weight (423). The lower weight (423) may be referred to as the lower plate (423), the third weight (423), or the third plate (423).

[0268] The bracket (43) may be positioned between the bottom case (412) and the lower weight (423). The bracket (43) may be made of aluminum die-casting material. The bracket (43) may include a body (430) and a wall (431). The body (430) may be attached to the lower surface of the lower weight (423). The annular wall (431) may extend vertically from the body (430) and may pass through the hole (42H) of the weight (42) and the hole (411H) of the top case (411).

[0269] The bottom connector (44) can be located between the bottom case (412) and the bracket (43) and can be fixed to the bracket (43).

[0270] The substrate (45) may be adjacent to the bottom connector (44). The substrate (45) may be located on the bottom case (412) and may be coupled to the bottom case (412). The substrate (45) may be located in the groove (42G) of the weight (42). The substrate (45) may be a Printed Circuit Board (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).

[0271] The pad (40P) can be attached to the lower surface of the bottom case (412). The pad (40P) may include a material such as rubber, urethane, or silicone.

[0272] Meanwhile, a wheel may be mounted on the lower surface of the bottom case (412). Multiple wheels may be arranged along the edge of the bottom case (412). In this case, the base (40) can move smoothly on the ground. Alternatively, the base (40) may not be equipped with a wheel. In this case, the base (40) can be stably positioned on the ground.

[0273]

[0274] Referring to FIGS. 41 and 42, the bottom case (412) may include a bottom part (412A) forming the bottom of the bottom case (412) and a side part (412B) forming the side of the bottom case (412).

[0275] The recess (412R) may be recessed from the lower surface of the bottom case (412). The recess (412R) may be formed in the center of the bottom part (412A). Multiple fixing parts (412F) may protrude upward from the recess (412R). Multiple fixing parts (412F) may be spaced apart from each other and may be located at the vertices of a rectangle. Multiple connecting parts (412C) may protrude upward from the bottom part (412A) adjacent to the recess (412R). Multiple connecting parts (412C) may be arranged along the perimeter of the recess (412R).

[0276] The bottom connector (44) may include a body (440) and a pin housing (441). The body (440) may be positioned between a plurality of fixed parts (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 placed inside the pin housing (441). A first cable (C1) may be electrically connected to the plurality of pins (442) through the body (440).

[0277] 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 housing (441) of the bottom connector (44) may pass through the through hole (430H) of the body (430). The annular wall (431) may protrude from the body (430) and may surround the side of the pin housing (441) of the bottom connector (44). Fastening members (F2), such as screws, may pass through the body (430) and be fastened to the body (440) of the bottom connector (44). The first cable (C1) may pass through the slot (430S) of the body (430). A plurality of fixing parts (412F) and a plurality of connecting parts (412C) can be inserted into the recesses of the body (430). The fixing holes (430F) of the body (430) can be aligned with the fixing parts (412F). The connecting holes (430C) of the body (430) can be aligned with the connecting parts (412C).

[0278]

[0279] Referring to FIGS. 43 and 44, the body (430) of the bracket (43) may include a first part (430a) and a second part (430b). The first part (430a) may form the edge of the body (430). The second part (430b) may be formed between the first part (430a) and the wall (431) and may form a step that rises from the first part (430a). A coupling hole (430C) and a fixing hole (430E) may be formed in the second part (430b). A guide pin (430P) may protrude from the upper surface of the second part (430b). The coupling holes (430C), fixing holes (430E), and guide pins (430P) may be arranged along the side of the wall (431).

[0280] A plurality of support members (412P) may protrude from the upper surface of the bottom part (412A) of the bottom case (412) and may be arranged along the side part (412B).

[0281] A plurality of connecting parts (412Q) may protrude from the upper surface of the bottom part (412A) of the bottom case (412) and may be arranged along the side part (412B).

[0282] A plurality of guide pins (412GP) may protrude from the upper surface of the bottom part (412A) of the bottom case (412) and may be adjacent to the side part (412B).

[0283] The lower weight (423) may have a circular plate shape having holes. The lower weight (423) may be located on the bottom part (412A) of the bottom case (412). A plurality of lower fixing parts (423P) may be formed by pressing upward from the lower surface of the lower weight (423) and may be located on a plurality of supporting parts (412P) of the bottom case (412). A plurality of through holes (423Q) may be formed in the lower weight (423), and a plurality of connecting parts (412Q) may pass through the plurality of through holes (423Q). Multiple guide holes (423GP) can be formed in the lower weight (423), and multiple guide pins (412GP) can penetrate the multiple guide holes (423GP).

[0284] The lower coupling portion (423R) can be formed by pressing upward from the lower surface of the lower weight (423), and the hole (423H) can be formed in the lower coupling portion (423R). The lower coupling portion (423R) can protrude from the upper surface of the lower weight (423). That is, the lower coupling portion (423R) can form a step that rises from the upper surface of the lower weight (423). The lower coupling portion (423R) can be located on the second part (430b) of the bracket (43), and the wall (431) can pass through the hole (423H). The guide pin (430P) of the bracket (43) can pass through the guide hole (423RP) of the lower coupling portion (423R). A fastening member (F23), such as a screw, can be fastened to the coupling part (412C) of the bottom case (412) by passing through the lower coupling part (423R) and the coupling hole (430C), thereby allowing the lower weight (423) and the bracket (43) to be fixed to the bottom case (412).

[0285]

[0286] Referring to FIGS. 44 and 45, the middle weight (422) may have a circular plate shape having holes. The middle weight (422) may be positioned on the lower weight (423). Multiple middle weights (422) may be stacked sequentially and may have the same shape. For example, the number of middle weights (4221, 4222, 4223, 4224, 4225, 4226) may be six. Multiple fixing holes (422P) may be formed in the middle weight (422), and multiple lower fixing parts (423P) may be inserted into the multiple fixing holes (422P). A plurality of through holes (422Q) can be formed in the middle weight (422), and a plurality of connecting parts (412Q) can be inserted into the plurality of through holes (422Q). A plurality of guide holes (422GP) can be formed in the middle weight (422), and a plurality of guide pins (412GP) can be inserted into the plurality of guide holes (422GP).

[0287] A hole (422H) can be formed in the middle weight (422), and a second part (430b) of the bracket (43) can be inserted into the hole (422H). A wall (431) can pass through the hole (422H).

[0288] A groove (422G) can be formed in the middle weight (422) and positioned corresponding to the groove (423G) of the lower weight (423). A slit (422S) can be formed between the groove (422G) of the middle weight (422) and the hole (422H).

[0289] Meanwhile, at least one cushion (4230) may be placed between the lower weight (423) and the middle weight (422). The cushions (4230) may be placed along the edge of the lower weight (423). For example, the cushion (4230) may be a non-woven fabric.

[0290]

[0291] Referring to FIGS. 45 and 46, the upper weight (421) may have a circular plate shape having holes. The upper weight (421) may be positioned on the middle weight (422). A plurality of upper fixing parts (421P) may be formed by pressing downward from the upper surface of the upper weight (421) and may be inserted into a plurality of fixing holes (422P) of the middle weight (422). Fastening members (F21), such as screws, may be fastened to the support parts (412P) of the bottom case (412) by penetrating the upper fixing parts (421P) of the upper weight (421) and the lower fixing parts (423P) of the lower weight (423). A plurality of through holes (421Q) can be formed in the upper weight (421) and aligned with a plurality of through holes (422Q) of the middle weight (422). A plurality of guide holes (421GP) can be formed in the upper weight (421) and aligned with a plurality of guide holes (422GP) of the middle weight (422).

[0292] The upper connecting portion (421R) can be formed by pressing downward from the upper surface of the upper weight (421), and the hole (421H) can be formed in the upper connecting portion (421R). The upper connecting portion (421R) can protrude from the lower surface of the upper weight (421). That is, the upper connecting portion (421R) can form a step that is lower from the lower surface of the upper weight (421). The upper connecting portion (421R) can be located on the lower connecting portion (423R) of the lower weight (423), and the wall (431) can pass through the hole (421H). The upper connecting portion (421R) and the lower connecting portion (423R) can be located in the hole (422H) of the middle weight (422). The guide pin (430P) of the bracket (43) can pass through the guide hole (421RP) of the upper coupling portion (421R). A fastening member (F22), such as a screw, can pass through the hole (423RE, see FIG. 45) of the upper coupling portion (421R) and the lower weight (423) and be fastened to the fixing hole (430E, see FIG. 43) of the bracket (43). The upper coupling portion (421R) may be provided with grooves (not shown) where the fastening members (F23) are located.

[0293] Accordingly, the upper weight (421), middle weight (422), and lower weight (423) can be combined with the bottom case (412) and bracket (43).

[0294] Meanwhile, at least one cushion (4220) may be placed between the middle weight (422) and the upper weight (421). The cushions (4220) may be placed along the edge of the middle weight (422). For example, the cushion (4220) may be a non-woven fabric.

[0295] A groove (421G) can be formed in the upper weight (421) and positioned corresponding to the groove (422G) of the middle weight (422). A slit (421S) can be formed between the groove (421G) of the upper weight (421) and the upper coupling portion (421R).

[0296] A portion of the first cable (C1) may be placed on the upper coupling portion (421R). The first cable (C1) may pass through the slits (421S, 422S) and may be placed in the groove (42G) of the weight (42).

[0297] The substrate (45) may be placed in the groove (42G) of the weight (42). The substrate (45) may be positioned on the coupling portions (412U) protruding from the upper surface of the bottom case (412), and fastening members (F24), such as screws, may secure the substrate (45) to the coupling portions (412U). The substrate (45) may be a Printed Circuit Board (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) and may face the hole (412H) of the bottom case (412). A power cable (C) may be detachably coupled to the jack (J), and the cable (C) connected to the jack (J) may be electrically connected to the substrate (45).

[0298] Accordingly, an external power source connected to the cable (C) can provide power to the bottom connector (44) through the substrate (45) and the first cable (C1).

[0299]

[0300] Referring to FIGS. 46 and 47, fastening members (F31), such as screws, can penetrate the fixing parts (412F) of the bottom case (412) and the body (430) of the bracket (43). Fastening members (F3) can be positioned along the inner surface of the wall (431) of the bracket (43).

[0301]

[0302] Referring to FIGS. 47 and 48, the top case (411) may have a circular plate shape having a central hole (411H). An inner rib (411r) may extend along the inner edge of the top case (411) and may form the hole (411H). An outer rib (411u) may extend along the outer edge of the top case (411). The top case (411) may cover an upper weight (421, see FIG. 46). A plurality of protrusions (411Q) may protrude from the lower surface of the top case (411) and may be inserted into the through holes (421Q, 422Q) of the weight (42). A plurality of protrusions (411Q) of the top case (411) may be located on a plurality of connecting parts (412Q) of the bottom case (412). Fastening members (F30), such as screws, may be fastened to the protrusions (411Q) of the top case (411) by penetrating the connecting parts (412Q) of the bottom case (412).

[0303] Accordingly, the top case (411) can be combined with the bottom case (412).

[0304] Meanwhile, at least one cushion (4210, see FIG. 46) may be placed between the upper weight (421) and the top case (411). The cushions (4210) may be placed along the edge of the upper weight (421). For example, the cushion (4210) may be a non-woven fabric.

[0305]

[0306] Referring to FIGS. 49 to 51, the wall (431) of the bracket (43) may extend vertically from the body (430) and penetrate the hole (411H) of the top case (411). The guide rib (432) may protrude from the inner surface of the wall (431).

[0307] The pin housing (441) of the bottom connector (44) can penetrate the body (430) of the bracket (43). The pin housing (441) can be located inside the wall (431) of the bracket (43). A plurality of pins (442, pins) can be placed inside the pin housing (441). A guide projection (443) can protrude from the inner surface of the pin housing (441).

[0308] The holder (32) can be attached to the bottom of the pole (30). The holder (32) may include a holder body (320). The holder body (320) may have a hollow cylinder shape overall. The holder body (320) may be inserted into the wall (431) of the bracket (43). A plurality of ribs (321) may protrude from the inner surface of the holder body (320) and may be spaced apart from each other along the inner surface of the holder body (320). Fastening members (F31) penetrating the body (430) of the bracket (43) may be fastened to the holes (321H) of the ribs (321). Accordingly, the holder (32) can be attached to the bracket (43) of the base (40).

[0309] A slit (320S) may be formed on the side of the holder body (320). A guide rib (432) of the bracket (43) may be inserted into the slit (320S). Accordingly, the guide rib (432) and the slit (320S) may guide the connection between the bracket (43) and the holder (32). A flange (320F) may protrude from the side of the holder body (320). The flange (320F) may be adjacent to the top of the wall (431).

[0310] The top connector (34) may be located inside the holder body (320) and may be mounted on the holder body (320). The top connector (34) may include a body (340), a first wing (340L), a second wing (340R), a housing (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 may be coupled to the inner surface of the holder body (320). The housing (341) may protrude from the body (340) and may be inserted into the interior of the pin housing (441). The pin hole (342) may be formed in the housing (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) can be referred to as the first connector (44), and the top connector (34) can be referred to as the second connector (34).

[0311] A guide groove (341G) can be formed on the side of the housing (341), and a guide projection (443) can be positioned on the guide groove (341G). Accordingly, the guide projection (443) and the guide groove (341G) can guide the connection of the bottom connector (44) and the top connector (34).

[0312] The second cable (C2) can be electrically connected to the top connector (34) and can be placed in the hollow space of the holder body (320) and the hollow space of the pole (30). The second cable (C2) can be electrically connected to the power cable (C, see FIG. 46) through the top connector (34), bottom connector (44), the first cable (C1), and the substrate (45).

[0313] Accordingly, an external power source connected to the cable (C) can provide power to the pogo pins (17P) of the head (10) through 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 FIG. 33, 37, 46).

[0314] The sleeve (322) of the holder (32) may have a cup shape that is open downward. The top part (322a) of the sleeve (322) may be penetrated by the pole (30). The side part (322b) of the sleeve (322) may wrap around the outer surface of the holder body (320). In other words, the holder body (320) may be inserted into the sleeve (322). The projection (322c) of the sleeve (322) may be formed on the inner surface of the side part (322b) and may be hook-coupled to the flange (320F) of the holder body (320). The side part (322b) of the sleeve (322) may be inserted into the gap (G4, gap) between the wall (431) of the bracket (43) and the hole (411H) of the top case (411). Accordingly, the bonding stability of the pole (30) and the base (40) can be improved.

[0315] Meanwhile, the head (10, see FIG. 30) can be electrically connected to the bottom connector (44) via the second cable (C2) and the top connector (34). The head (10, see FIG. 30) can be electrically grounded to the bottom connector (44) of the base (40, see FIG. 30) (and vice versa). The bottom connector (44) can be electrically grounded to the substrate (45) via the first cable (C1) (and vice versa).

[0316] Meanwhile, the support plate (31, see FIG. 30) and the pole (30, see FIG. 30) may comprise an electrically conductive material such as metal. The head (10, see FIG. 30) may be electrically connected to the base (40) through the support plate (31) and the pole (30). For example, the bracket (43) and the weight (42) of the base (40) may comprise an electrically conductive material such as metal. For example, the pole (30) may be electrically connected to the electrically conductive components of the base (40) through the holder body (320) and / or the sleeve (322) described later. The holder body (320) and / or the sleeve (322) may comprise an electrically conductive material such as metal. The head (10) may be electrically grounded to the base (40) through the support plate (31) and the pole (30) (and vice versa).

[0317]

[0318] Referring to FIGS. 1, 52 and 53, the angle of the head (10) of the projector device (1) can be adjusted.

[0319] Referring to FIG. 1, the head (10) can be positioned vertically on the pole (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 an image (including video) forward (see P in FIG. 1). The head (10) can output sound upward (see S in FIG. 1).

[0320] Referring to FIG. 52, the head (10) can be rotated approximately 90 degrees backward from the head (10) of FIG. 1. The lens (14L) of the head (10) can be oriented upward, and the cover (10C) of the head (10) can be oriented backward. The head (10) can project an image (including video) upward (see P in FIG. 52). That is, the head (10) can project an image (including video) toward the ceiling. The head (10) can output sound backward (see S in FIG. 52). Meanwhile, the lighting module (L) can project light toward, for example, a wall (W). The atmosphere of the space where the projector device (1) is located can be changed by the light from the lighting module (L). The brightness and color of the light from the lighting module (L) can be adjusted.

[0321] Referring to FIG. 53, the head (10) can be rotated forward by about 15 degrees from the head (10) of FIG. 1. The lens (14L) of the head (10) can be directed obliquely downward from the front, and the cover (10C) of the head (10) can be directed obliquely forward from the top. An image (including video) can be projected obliquely downward from the front of the head (10) (see P in FIG. 53). That is, by adjusting the angle of the head (10), the height of the screen projected from the head (10) can be smoothly adjusted. Sound can be output obliquely forward from the top of the head (10) (see S in FIG. 53).

[0322] Accordingly, the image projection direction and sound projection direction of the head (10) can be adjusted. In addition, the projector device (1) can function as a lighting device.

[0323]

[0324] Referring to FIG. 54, the position and size of the image projected onto the wall (W) can be adjusted according to the distance between the projector device (1) and the wall (W, wall) and the angle of the head (10). For example, the wall (W) may be a fixed body between the floor on which the projector device (1) is placed and the ceiling of the indoor space where the projector device (1) is located.

[0325] Referring to FIG. 54(a), the head (10) of the projector device (1) may be perpendicular to the pole (30), which can be referred to as the head (10) in a 0-degree position. The projector device (1) may be positioned at a first distance (D11) from the wall (W) and may project an image toward the wall (W). The bottom line of the image projected by the projector device (1) may be parallel to the horizontal direction, and the top line of the image may form a certain angle (theta 10) with respect to the bottom line. The bottom line may be positioned at a first height (Da) relative to the floor on which the projector device (1) is placed. The image projected onto the wall (W) may be positioned relatively high above the floor (see Da in FIG. 54) and slightly away from the ceiling (see H11 in FIG. 54). For example, the size of the image projected onto the wall (W) can correspond to a 100-inch screen.

[0326] Referring to FIG. 54 (b), the head (10) of the projector device (1) may be tilted slightly forward, which can be referred to as a head (10) in a +15 degree position. The projector device (1) may be positioned at a second distance (D12) from the wall (W) and may project an image toward the wall (W). The second distance (D12) may be greater than the first distance (D11). The image projected onto the wall (W) may be positioned slightly away from the floor (see FIG. 54 Db) and relatively far from the ceiling (see FIG. 54 H12). For example, the size of the image projected onto the wall (W) may correspond to a 100-inch screen.

[0327] Referring to FIG. 54 (c), the head (10) of the projector device (1) can be tilted significantly backward, which can be referred to as the head (10) in a -90 degree position. The projector device (1) can be positioned at a third distance (D13) from the wall (W) and can project an image toward the ceiling. The third distance (D13) may be smaller or larger than the distances (D11, D12). The size of the image projected onto the ceiling can be determined by the distance between the head (10) and the ceiling. For example, the size of the image projected onto the ceiling may correspond to a 40-inch screen.

[0328]

[0329] Referring to FIG. 55, the control unit (CL) of the projector device (1) can be electrically connected to the projector (P), the lighting module (L), and the speaker (19). The control unit (CL) can control the operation of the projector (P), the lighting module (L), and the speaker (19). For example, the control unit (CL) may be provided on a main board (18, see FIG. 23).

[0330] The projector (P), the lighting module (L), and the speaker (19) can be driven independently of each other. For example, the projector (P) may be driven, while the lighting module (L) and the speaker (19) may each be driven or not driven. For example, the lighting module (L) may be driven, while the projector (P) and the speaker (19) may each be driven or not driven. For example, the speaker (19) may be driven, while the projector (P) and the lighting module (L) may each be driven or not driven. For example, the image of the projector (P) and the sound of the speaker (19) may correspond to each other.

[0331] The projector (P), lighting module (L), and speaker (19) can be wirelessly connected to an external terminal via a communication module (10W, see FIG. 26). The projector (P) can be driven or stopped by the external terminal. The projector (P) can generate and output an image based on information received from the external terminal. The projector (P) can transmit information regarding the image generated by the projector (P) to the external terminal. The lighting module (L) can be driven or stopped by the 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 regarding 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 regarding the sound output by the speaker (19) to the external terminal.

[0332] Accordingly, the projector device (1) can provide at least one of an image (including video), sound, or light.

[0333]

[0334] Referring to FIG. 56, the interface (13) may be located in the center of the cover (10C) of the head (10). A touch panel (131) may form the outer surface of the interface (13). The backlight unit (130) of the interface (13) may provide light to the touch panel (131), thereby allowing the touch panel (131) to emit light. Not only the On / Off of the touch panel (131), but also the color and brightness of the light from the touch panel (131) may be controlled. The backlight unit (130) may be driven independently of the projector (P), lighting module (L), and speaker (19) described above with reference to FIG. 55.

[0335] Meanwhile, the color and brightness of the light of the touch panel (131) can be adjusted independently of the color and brightness of the light of the lighting module (L). Alternatively, the color and brightness of the light of the touch panel (131) may be synchronized with the color and brightness of the light of the lighting module (L). Alternatively, the color and brightness of the light of the touch panel (131) may be adjusted in correspondence with the color and brightness of the light of the lighting module (L).

[0336]

[0337] Referring to FIGS. 57 to 59, a plurality of icons (13N) may be formed on the touch panel (131). A user can control the head (10) by touching the icons (13N). The icons (13N) may be referred to as buttons (13N). Alternatively, a user can control the head (10) using a remote controller that communicates wirelessly with the head (10).

[0338] The first button (13Na) may be a (Bluetooth) speaker mode button. The second button (13Nb) may be a projector mode button. The third button (13Nc) may be a lighting (mood light) mode button. The fourth button (13Nd) may be a select (OK) / power button. The fifth button (13Ne) may be a back button. The sixth button (13Nf) may be a four-way button. The sixth button (13Nf) may consist of an upward arrow, a downward arrow, a left arrow, and a right arrow. When the user presses the button (13N) for less than a certain period of time, it may be considered a short press. When the user presses the button (13N) for more than a certain period of time, it may be considered a long press. The said certain period of time may be about 1.3 seconds.

[0339] For example, a user may briefly press the first button (13Na). When the first button (13Na) is briefly pressed while only power is connected to the head (10) (Case 1), the speaker (19) is turned on and the speaker (19) may be switched to a Bluetooth pairing ready state. For example, the device last connected to the speaker (19) may automatically be connected via Bluetooth to the speaker (19). When the first button (13Na) is briefly pressed while the speaker (19) is turned on (Case 2), the Bluetooth connection between the device connected to the speaker (19) and the speaker (19) may be disconnected, and the speaker (19) may be switched to a Bluetooth pairing ready state. When the first button (13Na) is briefly pressed while the projector (P) is turned on (Case 3), a pop-up message (the pop-up message of No. 1 in FIG. 59) may be displayed on the OSD (On Screen Display). The OSD may be formed on the image projected by the projector (P). The user can select "Yes" to the question in the pop-up message above to exit project mode and switch to speaker mode, or select "No" to close the pop-up message above. When the first button (13Na) is briefly pressed while the light mode is on (Case 4), the speaker (19) is turned on and the speaker (19) can be switched to a Bluetooth pairing ready state. For example, the device last connected to the speaker (19) can automatically be Bluetooth connected to the speaker (19). When the first button (13Na) is briefly pressed while the speaker (19) and the light mode are on (Case 5), the Bluetooth connection between the device connected to the speaker (19) and the speaker (19) can be disconnected and the speaker (19) can be switched to a Bluetooth pairing ready state.

[0340] For example, the user may press and hold the first button (13Na). When the first button (13Na) is pressed and held while the speaker (19) is on (Case 6), the speaker (19) may be turned off. When the first button (13Na) is pressed and held while the speaker (19) and lighting mode are on (Case 7), the speaker (19) may be turned off.

[0341] For example, the user may briefly press the second button (13Nb). When the second button (13Nb) is briefly pressed while only power is connected to the head (10) (Case 8), the projector (P) may be turned on. When the second button (13Nb) is briefly pressed while the speaker (19) is turned on (Case 9), the speaker (19) may be turned off and the projector (P) may be turned on. When the second button (13Nb) is briefly pressed while the projector (P) is turned on (Case 10), a pop-up message (the pop-up message of No. 3 in FIG. 59) may be displayed on the OSD. The user may select "Yes" to the question in the pop-up message to run the installation wizard for screen reset, or select "No" to close the pop-up message. When the second button (13Nb) is briefly pressed while the lighting mode is turned on (Case 11), the lighting module (L) may be turned off and the projector (P) may be turned on. When the second button (13Nb) is briefly pressed while the speaker (19) and lighting mode are on (Case 12), the speaker (19) and lighting module (L) are turned off and the projector (P) can be turned on.

[0342] For example, the user can press and hold the second button (13Nb). When the second button (13Nb) is pressed and held while the projector (P) is turned on (Case 13), the projector (P) can be turned off.

[0343] For example, the user may briefly press the third button (13Nc). When the third button (13Nc) is briefly pressed while only power is connected to the head (10) (Case 14), the lighting module (L) may be turned on. When the third button (13Nc) is briefly pressed while the speaker (19) is turned on (Case 15), the lighting module (L) may be turned on. When the third button (13Nc) is briefly pressed while the projector (P) is turned on (Case 16), a pop-up message (the pop-up message of No. 2 in FIG. 59) may be displayed on the OSD. The user may select "Yes" to the question in the pop-up message to exit the projector mode and switch to lighting mode, or select "No" to close the pop-up message. When the third button (13Nc) is briefly pressed while the lighting mode is turned on (Case 17), the user may enter lighting editing mode and change the brightness and color of the lighting module (L). However, if there is no user input for a certain period of time (e.g., 3 seconds), the lighting editing mode may be terminated with the last set value. When the third button (13Nc) is pressed briefly (Case 18) while the speaker (19) and the lighting mode are turned on, the lighting editing mode may be entered, and the user may change the brightness and color of the lighting module (L). However, if there is no user input for a certain period of time (e.g., 3 seconds), the lighting editing mode may be terminated with the last set value.

[0344] For example, the user may press and hold the third button (13Nc). When the third button (13Nc) is pressed and held while the lighting mode is on (Case 19), the lighting module (L) may be turned off. When the third button (13Nc) is pressed and held while the speaker (19) and the lighting mode are on (Case 20), the lighting module (L) may be turned off.

[0345] For example, the user may briefly press the fourth button (13Nd). When the fourth button (13Nd) is briefly pressed while only power is connected to the head (10) (Case 21), the last turned-off mode (speaker mode, projector mode, or lighting mode) may be turned on. When the fourth button (13Nd) is briefly pressed while the speaker (19) is turned on (Case 22), the sound of the speaker (19) may be played or paused. When the fourth button (13Nd) is briefly pressed while the projector (P) is turned on (Case 23), the user may bring up a local key menu (see local key menu (O) in FIG. 61) to the OSD, or check or activate specific functions on the menu. When the fourth button (13Nd) is briefly pressed while the lighting mode is turned on (Case 24), specific settings in the lighting editing mode may be selected. When the fourth button (13Nd) is pressed briefly (Case 25) while the speaker (19) and lighting mode are turned on, the sound of the speaker (19) may be played or paused. Alternatively, a specific setting in lighting editing mode may be selected.

[0346] For example, the user may press and hold the fourth button (13Nd). When the fourth button (13Nd) is pressed and held while the speaker (19) is on (Case 26), the speaker (19) may be turned off. When the fourth button (13Nd) is pressed and held while the projector (P) is on (Case 27), the projector (P) may be turned off. When the fourth button (13Nd) is pressed and held while the lighting mode is on (Case 28), the lighting module (L) may be turned off. When the fourth button (13Nd) is pressed and held while the speaker (19) and the lighting mode are on (Case 29), the speaker (19) and the lighting module (L) may be turned off.

[0347] For example, the user can input a back action to the projector (P) by briefly pressing the fifth button (13Ne) while the projector (P) is turned on (Case 30).

[0348] For example, the user may briefly press the sixth button (13Nf). With the speaker (19) turned on, the user may briefly press the sixth button (13Nf) to adjust the volume or play the previous or next song. When the projector (P) is turned on, the user may briefly press the sixth button (13Nf) (Case 31) to change the channel or volume of the video being played on the projector (P), or select or activate a specific function on the local key menu (O). With the lighting mode turned on, the user may briefly press the sixth button (13Nf) to adjust the brightness and color of the lighting module (L). With the speaker (19) and the lighting mode turned on, the user may briefly press the sixth button (13Nf) to adjust the volume or play the previous or next song. Alternatively, in the lighting editing mode, the user may adjust the brightness and color of the lighting module (L).

[0349]

[0350] Referring to FIG. 60 together with FIG. 57, the touch panel (131) of the interface (13) can emit light. The backlight unit (130) of the interface (13) can provide light to the touch panel (131). A diffuser plate can be positioned between the backlight unit (130) and the touch panel (131) and can diffuse the light from the backlight unit (130). The touch panel (131) can be positioned on the diffuser plate. The touch panel (131) can detect a user's touch. The brightness and color of the light from the backlight unit (130) can be adjusted.

[0351] For example, the user may briefly press the first button (13Na). When the first button (13Na) is briefly pressed while only power is connected to the head (10) or the speaker (19) is turned on, the brightness and color of the configured interface (13) may be maintained, but it may light up at 1-second intervals to indicate that it is waiting for Bluetooth pairing, and after lighting up twice, it may continuously emit light to indicate that the speaker (19) has been Bluetooth paired. When the first button (13Na) is briefly pressed while the projector (P) is turned on, the light of the interface (13) may be turned off. When the first button (13Na) is briefly pressed while the lighting mode is turned on or while the speaker and lighting mode are turned on, the brightness and color of the configured interface (13) may be maintained, but it may light up at 1-second intervals to indicate that it is waiting for Bluetooth pairing, and after lighting up twice, it may continuously emit light to indicate that the speaker (19) has been Bluetooth paired.

[0352] For example, the user may press and hold the first button (13Na). When the first button (13Na) is pressed and held while the speaker (19) is turned on, the light of the interface (13) may be turned off. When the first button (13Na) is pressed and held while the speaker and lighting modes are turned on, the brightness and color of the configured interface (13) may be maintained.

[0353] For example, the user may briefly press the second button (13Nb). When the second button (13Nb) is briefly pressed in any mode of the head (10), the light of the interface (13) may be turned off.

[0354] For example, the user may briefly press the third button (13Nc). When the third button (13Nc) is briefly pressed while only power is connected to the head (10) or while the speaker (19) is turned on, the brightness and color of the configured interface (13) may be maintained. When the third button (13Nc) is briefly pressed while the projector (P) is turned on, the light from the interface (13) may be turned off. When the third button (13Nc) is briefly pressed while the lighting mode is turned on or while both the speaker and lighting modes are turned on, the brightness and color of the configured interface (13) may be maintained. Alternatively, when entering the lighting editing mode, the interface (13) may be turned on at 1-second intervals, and the user may change the brightness and color of the light from the interface (13) via the sixth button (13Nf), and the interface (13) may be turned on at 1-second intervals after maintaining the light for 2 seconds at the last configured value.

[0355] For example, the user may press and hold the third button (13Nc). When the third button (13Nc) is pressed and held while the lighting mode is on or while the speaker and lighting mode are on, the illumination of the interface (13) may be turned off.

[0356] For example, the user may briefly press the fourth button (13Nd). When the fourth button (13Nd) is briefly pressed while only power is connected to the head (10) or while the speaker (19) is turned on, the brightness and color of the configured interface (13) may be maintained. However, when a signal to turn on the projector (P) is input, the light of the interface (13) may be turned off. When the fourth button (Nd) is briefly pressed while the projector (P) is turned on, the light of the interface (13) may be turned off. When the fourth button (13Nd) is briefly pressed while the lighting mode is turned on or while both the speaker and lighting modes are turned on, the brightness and color of the configured interface (13) may be maintained.

[0357] For example, the user can press and hold the fourth button (13Nd). When the fourth button (13Nd) is pressed and held in any mode of the head (10) (except when only power is connected to the head (10)), the illumination of the interface (13) can be turned off.

[0358] For example, the user can briefly press the fifth button (13Ne). When the fifth button (13Ne) is briefly pressed while the projector (P) is turned on, the light of the interface (13) can be turned off.

[0359] For example, the user may briefly press the sixth button (13Nf). When the sixth button (13Nf) is briefly pressed while the speaker (19) is on, the brightness and color of the configured interface (13) may be maintained. When the sixth button (13Nf) is briefly pressed while the projector (P) is on, the light of the interface (13) may be turned off. When the sixth button (13Nf) is briefly pressed while the lighting mode is on, the user may change the brightness and color of the light of the interface (13) when in lighting editing mode. When the sixth button (13Nf) is briefly pressed while the lighting mode is on, or while both the lighting mode and the speaker (19) are on, the brightness and color of the configured interface (13) may be maintained. Alternatively, when in lighting editing mode, the user may change the brightness and color of the light of the interface (13).

[0360] Accordingly, the brightness and color of the interface (13) can be adjusted according to the mode of the head (10) and the user's selection.

[0361]

[0362] Referring to FIG. 61, an OSD (On Screen Display) can be formed on an image (S) projected onto a screen or the like by a projector (P). A local key menu (O) can be displayed as an OSD. The user can select one of the menus (I, II, III, IV) of the local key menu (O) or exit the local key menu (O) by touching the buttons (13N) of the interface (13). Alternatively, the user can select or exit the local key menu (O) by operating a remote controller that communicates wirelessly with the head (10).

[0363]

[0364] Referring to FIGS. 1 to 61, a projector device (1) may include: a head (10) having a projector (P); a base (40) spaced apart from the head (10); and a pole (30) connecting the head (10) and the base (40), and the base (40) may include: a case (41); an upper plate (421) inside the case (41); a lower plate (423) below the upper plate (421); and a middle plate (422) between the upper plate (421) and the lower plate (423), and a part of the upper plate (421) and a part of the lower plate (423) may be inserted into the middle plate (422).

[0365] The part of the upper plate (421) is positioned on the part of the lower plate (423) and can be coupled to the part of the lower plate (423).

[0366] The upper plate (421) may include an upper coupling portion (421R) that protrudes from the upper plate (421) and forms a portion of the upper plate (421), and the lower plate (423) may include a lower coupling portion (423R) that protrudes from the lower plate (423) and forms a portion of the lower plate (423), and the upper coupling portion (421R) may be located on the lower coupling portion (423R) and may be coupled to the lower coupling portion (423R).

[0367] The projector device (1) may further include: a bracket (43) between the lower plate (423) and the bottom part (412A) of the case (41); and a fastening member (F22) that passes through the upper coupling part (421R) and the lower coupling part (423R) and is fastened to the bracket (43).

[0368] The projector device (1) may further include a fastening member (F23) that passes through the lower coupling part (423R) and the bracket (43) and is fastened to the bottom part (412A) of the case (41).

[0369] The above bracket (43) may include: a body (430) to which the fastening member (F23) is fastened; and a wall (431) that protrudes from the body (430) and penetrates the lower coupling portion (423R) and the upper coupling portion (421R).

[0370] The lower coupling portion (423R) may be recessed from the lower surface of the lower plate (423) and positioned on the body (430) of the bracket (43).

[0371] The projector device (1) may further include: a bottom connector (44) coupled to the bracket (43); and a cable (C1) electrically connected to the bottom connector (44), and the upper coupling portion (421R) may be recessed from the upper surface of the upper plate (421) and may be located on the lower coupling portion (423R), and a portion of the cable (C1) may be placed on the upper coupling portion (421R).

[0372] The middle plate (422) may include: a hole (422H); and a fixed hole (422P) spaced apart from the hole (422H); the upper plate (421) may include: a first part that forms a portion of the upper plate (421) and is inserted into the hole (422H); and a second part spaced apart from the first part and inserted into the fixed hole (422P); and the lower plate (423) may include: a third part that forms a portion of the lower plate (423) and is inserted into the hole (422H); and a fourth part spaced apart from the third part and inserted into the fixed hole (422P).

[0373] The projector device (1) may further include a fastening member (F21) that penetrates the second part and the fourth part and is fastened to the case (41).

[0374] The above case (41) may include a support member (412P) protruding from the upper surface of the bottom part (412A) of the above case (41), the lower plate (423) may include a lower fixing member (423P) recessed from the lower surface of the lower plate (423) and located on the support member (412P), the upper plate (421) may include an upper fixing member (421P) recessed from the upper surface of the upper plate (421) and located on the lower fixing member (423P), and the fastening member (F21) may be fastened to the support member (412P) by penetrating the upper fixing member (421P) and the lower fixing member (423P).

[0375] The above middle plate (422) may include a plurality of middle plates (422) that are stacked on top of each other.

[0376] The projector device (1) may further include: a bracket (43) between the lower plate (423) and the bottom part (412A) of the case (41); a bracket (43) having a wall (431) penetrating the hole (411H) of the top of the case (41); and a sleeve (322) inserted into the gap (G4) between the wall (431) and the hole (411H), and the pole (30) may be positioned on the bracket (43) inside the wall (431) and may be coupled to the bracket (43), and the sleeve (322) may wrap around the wall (431) and may be coupled to the pole (30).

[0377] The projector device (1) may further include: a mount (35) fixed to one end of the pole (30) facing the head (10); a joint (36) rotatably coupled to the mount (35); a hinge shaft (37) providing a rotation axis of the joint (36); and a support plate (31) having one end fixed to the joint (36) and the other end fixed to the head (10), and the rotation axis of the joint (36) may intersect the pole (30).

[0378] The base (40) may further include: a first cable (C1); and a first connector (44) electrically connected to the first cable (C1), and the pole (30) may include: a second cable (C2) electrically connected to the head (10); and a second connector (34) electrically connected to the second cable (C2), and the first cable (C1) may be electrically connected to the second cable (C2) through the first connector (44) and the second connector (34).

[0379] A projector device (1) may include: a head (10) having a projector (P); a base (40) spaced apart from the head (10); and a pole (30) connecting the head (10) and the base (40), and the base (40) may include: a first cable (C1); and a first connector (44) electrically connected to the first cable (C1), and the pole (30) may include: a second cable (C2) electrically connected to the head (10); and a second connector (34) electrically connected to the second cable (C2), and the first cable (C1) may be electrically connected to the second cable (C2) through the first connector (44) and the second connector (34).

[0380] The projector device (1) may further include: a substrate (39P) positioned between the head (10) and the pole (30) and coupled to the pole (30); a connector (39U) mounted on one side of the substrate (39P) facing the pole (30); and a terminal (39T) mounted on the other side of the substrate (39P) opposite to the one side, and the second cable (C2) may be electrically connected to the connector (39U), and the head (10) may be electrically connected to the terminal (39T).

[0381] The projector device (1) may further include a support plate (31) positioned between the head (10) and the substrate (39P) and coupled to the head (10) and the substrate (39P), and the head (10) may include: a frame (12) facing the support plate (31); a first substrate (17) positioned inside the head (10) and coupled to the frame (12); and a connection pin (17P) mounted on the first substrate (17) and located in a first hole (12HP) of the frame (12), and the terminal (39T) may be located in a hole (31T) of the support plate (31) and electrically connected to the connection pin (17P) by contacting the connection pin (17P).

[0382] The head (10) may further include: a second substrate (18) located inside the head (10) and coupled to the frame (12); and at least one port (185, 186) mounted on the second substrate (18) and located in the second hole (12H5) of the frame (12).

[0383] The head (10) may further include a case (11) forming the outer surface of the head (10), and at least one port (185, 186) may be exposed to the outside of the case (11).

[0384]

[0385] Some or other embodiments of the present disclosure described above are not exclusive or distinguishable from one another. Some or other embodiments of the present disclosure described above may be used in combination or combined for their respective configurations or functions.

[0386] For example, this means that configuration A described in a specific embodiment and / or drawing and configuration B described in another embodiment and / or drawing can be combined. That is, even if the combination between configurations is not directly described, it means that combination is possible, except in cases where it is described that combination is impossible.

[0387] The foregoing detailed description should not be interpreted restrictively in all respects and should be considered exemplary. The scope of the invention shall 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

A head equipped with a projector; A base spaced apart from the head above; and, It includes a pole connecting the head and the base, The above base is: case; Upper plate inside the above case; A lower plate below the upper plate above; and, It includes a middle plate between the upper plate and the lower plate, A part of the upper plate and a part of the lower plate are, A projector device inserted into the above middle plate. In Article 1, The above part of the upper plate is, A projector device located on the portion of the lower plate and coupled to the portion of the lower plate. In Article 2, The above upper plate is: It includes an upper coupling portion that protrudes from the upper plate and forms the portion of the upper plate, The above lower plate is: It includes a lower coupling portion that protrudes from the lower plate and forms the portion of the lower plate, The above upper joint is, A projector device located on the lower coupling portion and coupled to the lower coupling portion. In Paragraph 3, A bracket between the lower plate and the bottom part of the case; and, A projector device further comprising a fastening member that penetrates the upper coupling portion and the lower coupling portion and is fastened to the bracket. In Paragraph 4, A projector device further comprising a fastening member that penetrates the lower coupling portion and the bracket and is fastened to the bottom part of the case. In Paragraph 4, The above bracket is: A body to which the above-mentioned fastening member is fastened; and, A projector device comprising a wall that protrudes from the body and penetrates the lower coupling portion and the upper coupling portion. In Article 6, The above lower coupling part is, A projector device that is recessed from the lower surface of the lower plate and is located on the body of the bracket. In Article 6, A bottom connector coupled to the above bracket; and, It further includes a cable electrically connected to the bottom connector above, The above upper joint is, Recessed from the upper surface of the upper plate and located on the lower coupling portion, Part of the above cable, A projector device disposed on the upper coupling portion above. In Article 1, The above middle plate is: Hole; and, It includes a fixed hole spaced apart from the above hole, and The above upper plate is: A first part forming the above part of the upper plate and inserted into the hole; and, It includes a second part that is spaced apart from the first part and inserted into the fixing hole, The above lower plate is: A third part forming the aforementioned part of the lower plate and inserted into the hole; and, A projector device comprising a fourth part spaced apart from the third part and inserted into the fixing hole. In Article 9, A projector device further comprising a fastening member that penetrates the second part and the fourth part and is fastened to the case. In Article 10, The above case is: It includes a support member protruding from the upper surface of the bottom part of the above case, and The above lower plate is: It includes a lower fixing part that is recessed from the lower surface of the lower plate and is located on the support part, The above upper plate is: It includes an upper fixing part that is recessed from the upper surface of the upper plate and is located on the lower fixing part, The above fastening member is, A projector device that is fastened to the support member by penetrating the upper fixing member and the lower fixing member. In Article 1, The above middle plate is: A projector device comprising a plurality of middle plates stacked on top of each other. In Article 1, A bracket between the lower plate and the bottom part of the case; a bracket having a wall penetrating a hole in the top of the case; and, It further includes a sleeve inserted into the gap between the above wall and the above hole, and The above pole is, Located on the bracket inside the above wall, and coupled to the bracket, The above sleeve is, A projector device that wraps around the above wall and is coupled to the above pole. In Article 1, A mount fixed to one end of the pole facing the head; A joint rotatably coupled to the above mount; A hinge shaft providing a rotation axis of the above joint; and, It further includes a support plate, one side of which is fixed to the joint and the other side of which is fixed to the head, The rotation axis of the above joint is, A projector device that intersects the above pole. In Article 1, The above base is: First cable; and, It further includes a first connector electrically connected to the first cable, and The above pole is: A second cable electrically connected to the head above; and, It includes a second connector electrically connected to the second cable, and The above-mentioned first cable is, A projector device electrically connected to the second cable through the first connector and the second connector. A head equipped with a projector; A base spaced apart from the head above; and, It includes a pole connecting the head and the base, The above base is: First cable; and, It includes a first connector electrically connected to the first cable, and The above pole is: A second cable electrically connected to the head above; and, It includes a second connector electrically connected to the second cable, and The above-mentioned first cable is, A projector device electrically connected to the second cable through the first connector and the second connector. In Article 16, A substrate located between the head and the pole and coupled to the pole; A connector mounted on one side of the substrate facing the above pole; and, It further includes a terminal mounted on the other side of the substrate opposite to the one side above, and The second cable is electrically connected to the connector, and The above head is, A projector device electrically connected to the above terminal. In Article 17, It further includes a support plate positioned between the head and the substrate and coupled to the head and the substrate, The above head is: A frame facing the above support plate; A first substrate located inside the head and coupled to the frame; and, It includes a connection pin mounted on the first substrate and located in the first hole of the frame, The above terminal is, A projector device located in a hole of the support plate and electrically connected to the connection pin by contacting the connection pin. In Article 18, The above head is: A second substrate located inside the head and coupled to the frame; and, A projector device further comprising at least one port mounted on the second substrate and located in the second hole of the frame. In Article 19, The above head is: It further includes a case forming the outer surface of the head, and The above at least one port is, A projector device exposed to the outside of the above case.

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