Electronic device comprising beam projector

Abstract

Disclosed is an electronic device. The disclosed electronic device comprises: a base provided with a plurality of driving rotary bodies; a beam projector seated on the plurality of driving rotary bodies and including an image projector for projecting an image; a first driving unit for providing power to the plurality of driving rotary bodies; and a processor for controlling the driving unit to change the pose of the beam projector seated on the plurality of driving rotary bodies by rotating the plurality of driving rotary bodies in a first direction and a second direction that is the reverse of the first direction.

Description

Electronic device with beam projector

[0001] The present invention relates to an electronic device, and more particularly, to an electronic device including a beam projector and capable of adjusting the pose of the beam projector.

[0002] Advances in electronic technology have led to the development and proliferation of various types of electronic devices. In particular, electronic devices used in a variety of settings, including homes, offices, and public spaces, have seen continuous advancements in recent years. Beam projectors, in particular, are used in a variety of settings, including offices, theaters, homes, and stores, and their market is steadily growing. Home / portable beam projectors are increasingly available in diverse form factors due to the increased efficiency and lower power consumption of LED light sources, and the market is growing by 10-15% annually. Recently, in diverse video display environments, the use of multiple beam projectors is increasing, rather than a single beam projector.

[0003] An electronic device according to one or more embodiments may include: a base having a plurality of driving rotors; a beam projector having an image projection unit mounted on the plurality of driving rotors and configured to project an image; a first driving unit that provides power to the plurality of driving rotors; and a processor that controls the driving unit to rotate the plurality of driving rotors in a first direction and a second direction opposite to the first direction to change a pose of the beam projector mounted on the plurality of driving rotors.

[0004] The above plurality of driving rotors may include a first wheel, a second wheel, and a third wheel, a portion of which protrudes from the upper surface of the beam projector. The first wheel, the second wheel, and the third wheel may be arranged to correspond to each side of an equilateral triangle.

[0005] Each of the first wheel, the second wheel, and the third wheel may be an omni wheel.

[0006] The beam projector may have a portion formed of a curved surface so as to perform a roll motion, a pitch motion, and a yaw motion by driving the first wheel, the second wheel, and the third wheel.

[0007] The above beam projector may have a sphere shape.

[0008] The beam projector may have a hemisphere shape at a portion that comes into contact with the first wheel, the second wheel, and the third wheel.

[0009] The beam projector may further include a second driving unit for moving the first wheel, the second wheel, and the third wheel in directions away from each other and toward each other.

[0010] The base may include a lower housing; an upper housing rotatably coupled to an upper side of the lower housing; and a third driving unit for rotating the upper housing.

[0011] The above plurality of driving rotors may include a first roller and a second roller, a portion of which protrudes from the upper surface of the upper housing. The first roller and the second roller may be arranged in parallel with each other at a distance therefrom.

[0012] The above beam projector may have a disk shape such that its outer surface is in contact with the first roller and the second roller. A pitch motion may be performed by driving one of the first roller and the second roller.

[0013] The above beam projector may further include a fourth driving unit for moving the first roller and the second roller in a direction away from each other and a direction toward each other.

[0014] The base may include a receiving groove in which a portion of the beam projector is received.

[0015] The base may further include at least one pair of driving wheels provided on a bottom surface of the base; a plurality of auxiliary wheels provided on a bottom surface of the base; and a fifth driving unit that provides power to the at least one pair of driving wheels.

[0016] The above base may further include a sensor unit for detecting the beam projector mounted on the upper side of the base.

[0017] The beam projector may further include a battery for supplying power to the image projection unit. The base may further include a power module for supplying power to the driving unit and charging the battery.

[0018] FIG. 1 is a drawing showing an electronic device according to one or more embodiments, wherein the base and the beam projector are separated.

[0019] FIG. 2 is a perspective view of an omni wheel as an example of the multiple driving rotors illustrated in FIG. 1.

[0020] FIG. 3 is a drawing showing an electronic device according to one or more embodiments, wherein a beam projector is mounted on a base.

[0021] FIG. 4 is a block diagram illustrating configurations provided on a base of an electronic device according to one or more embodiments.

[0022] FIG. 5 is a drawing showing the location of a proximity sensor provided on a base of an electronic device according to one or more embodiments.

[0023] FIG. 6 is a block diagram illustrating configurations provided in a beam projector of an electronic device according to one or more embodiments.

[0024] FIG. 7 is a flowchart illustrating the operation of an electronic device according to one or more embodiments.

[0025] FIG. 8 is a block diagram illustrating an example of an electronic device transmitting and receiving signals wirelessly with a user terminal device according to one or more embodiments.

[0026] FIG. 9 is a diagram illustrating an example of a user interface displayed on a user terminal device to control an electronic device according to one or more embodiments.

[0027] FIG. 10 is a plan view showing an example of operation of a plurality of driving rotors for rolling a beam projector of an electronic device according to one or more embodiments.

[0028] FIG. 11 is a front view showing an example of a beam projector of an electronic device in a roll motion according to one or more embodiments.

[0029] FIG. 12 is a drawing showing an example in which a beam projector of an electronic device according to one or more embodiments sets a screen projected on a projection surface in a vertical direction by a roll motion.

[0030] FIG. 13 is a drawing showing a screen projected vertically onto a projection surface by a beam projector of an electronic device according to one or more embodiments.

[0031] FIG. 14 is a plan view showing an example of operation of a plurality of driving rotors for pitch-operating a beam projector of an electronic device according to one or more embodiments.

[0032] FIG. 15 is a side view illustrating an example of a beam projector of an electronic device in a pitch operation according to one or more embodiments.

[0033] FIG. 16 is a side view showing an example of a beam projector of an electronic device according to one or more embodiments, wherein the projection window is directed toward the receiving groove of the base by a pitch motion.

[0034] FIG. 17 is a plan view showing an example of operation of a plurality of driving rotors for yaw operation of a beam projector of an electronic device according to one or more embodiments.

[0035] FIG. 18 is a front view showing an example of a beam projector of an electronic device in operation according to one or more embodiments.

[0036] FIG. 19 is a diagram illustrating an example of a beam projector of an electronic device according to one or more embodiments changing a pose in real time based on an image projected onto a projection surface.

[0037] FIG. 20 is a plan view showing an example in which a plurality of driving rotors provided on a base of an electronic device according to one or more embodiments move away from the center of the base or to a position adjacent to the center of the base.

[0038] FIGS. 21 to 24 are drawings showing various shapes of a beam projector of an electronic device according to one or more embodiments.

[0039] FIG. 25 is a diagram illustrating various devices applied to the base of an electronic device according to one or more embodiments.

[0040] FIGS. 26 and 27 are drawings showing examples of a device mounted on a base of an electronic device according to one or more embodiments being displayed on a user's portable terminal.

[0041] FIG. 28 is a diagram illustrating an example of using multiple electronic devices according to one or more embodiments.

[0042] FIG. 29 is a perspective view illustrating an example of an electronic device having a plurality of drive wheels to enable the base to move according to one or more embodiments.

[0043] FIG. 30 is a diagram illustrating an example of displaying a large screen using multiple electronic devices according to one or more embodiments.

[0044] FIG. 31 is a drawing showing a screen projected onto a projection surface by a plurality of electronic devices according to one or more embodiments.

[0045] FIG. 32 is a diagram illustrating an example of displaying an ultra-high definition screen using a plurality of electronic devices according to one or more embodiments.

[0046] FIG. 33 is a diagram illustrating an example of displaying a main screen and a secondary screen using multiple electronic devices according to one or more embodiments.

[0047] FIG. 34 is a drawing showing an electronic device according to one or more embodiments, with the base and beam projector separated.

[0048] FIG. 35 is a drawing showing an electronic device according to one or more embodiments, with a beam projector separated from the base.

[0049] FIG. 36 is a front view showing an example of a beam projector of an electronic device in pitch operation according to one or more embodiments.

[0050] FIG. 37 is a front view showing an example of a beam projector of an electronic device in a yaw motion according to one or more embodiments.

[0051] FIG. 38 is a perspective view showing an example of a pair of rotors provided on a base of an electronic device according to one or more embodiments moving toward or away from each other.

[0052] The embodiments described in this disclosure and the configurations illustrated in the drawings are merely one or more preferred embodiments, and there may be various modified examples that can replace the embodiments and drawings of this disclosure at the time of filing of this application.

[0053] In this disclosure, the same reference numbers or symbols presented in each drawing represent parts or components that perform substantially the same function.

[0054] The terminology used in this disclosure is for the purpose of describing embodiments and is not intended to limit and / or restrict the disclosed invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this specification, the terms "comprises" or "has" and the like are intended to indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0055] While terms including ordinal numbers, such as "first," "second," etc., used herein may be used to describe various components, the components are not limited by the terms, and the terms are used only to distinguish one component from another. For example, without departing from the scope of the present disclosure, the first component could be referred to as the second component, and similarly, the second component could also be referred to as the first component. The term "and / or" includes any combination of multiple related listed items or any one of multiple related listed items.

[0056] The terms “leading end,” “rear end,” “upper end,” “lower end,” “front end,” “rear end,” “top surface,” “bottom surface,” “top end,” “bottom end,” “one end,” “the other end,” “left side,” and “right side” used in this disclosure are defined based on the drawings, and the shape and position of each component are not limited by these terms.

[0057] The term "module" used in various embodiments of the present disclosure may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be an integrally formed component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0058] Hereinafter, an electronic device according to one or more embodiments is described with reference to the attached drawings.

[0059] FIG. 1 is a diagram illustrating an electronic device according to one or more embodiments, with the base and the beam projector separated. FIG. 2 is a perspective view of an omni wheel, which is an example of the plurality of driving rotors illustrated in FIG. 1.

[0060] Referring to FIG. 1, an electronic device (1) according to one or more embodiments may include a base (10) and a beam projector (40) mounted on the upper portion of the base (10). The beam projector (40) may perform roll, pitch, and yaw motions by driving first, second, and third driving rotors (21, 22, 23) provided on the base (10). The beam projector (40) may perform one of the roll, pitch, and yaw motions on the base (10), or may sequentially or simultaneously perform at least two of the roll, pitch, and yaw motions, so that the direction of the image projection projected onto a projection surface (e.g., a part of a physical space where an image is output (such as a wall) or a separate screen) may be adjusted.

[0061] The base (10) may include a first housing (11) and first, second and third driving rotors (21, 22, 23) rotatably arranged in the first housing (11).

[0062] The first housing (11) may have a receiving groove (13) formed on the upper surface corresponding to the shape of the beam projector (40). For example, the second housing (41) of the beam projector (40) may be formed in an approximately spherical shape. In this case, the receiving groove (13) may have a curved surface that approximately corresponds to the curvature of the second housing (41) of the beam projector (40). In this case, a part of the second housing (41) adjacent to the receiving groove (13) may be received in the receiving groove (13). While the beam projector (40) is supported by the first, second, and third driving rotors (21, 22, 23) on the upper side of the base (10) and the image projection direction is adjusted, the lower part of the second housing (41) of the beam projector (40) may not interfere with the upper surface of the first housing (11) of the base (10).

[0063] The first, second and third driving rotors (21, 22, 23) can be coupled by first, second and third driving shafts (not shown), respectively. The first, second and third driving shafts can be rotated clockwise or counterclockwise by receiving power from a driving unit (31, see FIG. 4) provided inside the first housing (11) of the base (10). The driving unit (31) can include, for example, a first driving motor (31a) connected to the first driving shaft, a second driving motor (31b) connected to the second driving shaft, and a third driving motor (31c) connected to the third driving shaft. The first, second and third driving rotors (21, 22, 23) can be rotated clockwise or counterclockwise together with the first, second and third driving shafts.

[0064] The first, second and third driving rotors (21, 22, 23) can support the second housing (41) of the beam projector (40). In this case, the first, second and third driving rotors (21, 22, 23) can all be positioned at the same distance from the center (14) of the base (10). The center (14) of the base (10) can be the same as the center of the first housing (11).

[0065] The gap between the first and second driving rotors (21, 22), the gap between the second and third driving rotors (22, 23), and the gap between the third and first driving rotors (21, 22, 23) may all be substantially the same.

[0066] Accordingly, the first, second and third driving rotors (21, 22, 23) can be arranged to form an approximately equilateral triangle in the first housing (11) of the base (10). The second housing (41) of the beam projector (40) mounted on the first, second and third driving rotors (21, 22, 23) can have a center of gravity at a position approximately corresponding to the center (14) of the first housing (11) of the base (10). Therefore, the beam projector (40) can be stably supported on the first, second and third driving rotors (21, 22, 23).

[0067] The first, second and third driving rotors (21, 22, 23) may partially protrude above the first housing (11) of the base (10). Accordingly, the second housing (41) of the beam projector (40) mounted on the first, second and third driving rotors (21, 22, 23) may be spaced apart from the upper surface of the first housing (11) of the base (10) by a predetermined distance.

[0068] Referring to Fig. 2, the first driving rotor (21) may be, for example, an omni wheel. In this case, the second and third driving rotors (22, 23) may be omni wheels. The first driving rotor (21) may include a pair of wheels (21a, 21b) having the same diameter and a plurality of rollers (21c, 21d). The plurality of rollers (21c, 21d) may be rotatably arranged on the outer surface of each wheel (21a, 21b). The plurality of rollers (21c, 21d) may be arranged at regular intervals along the circumferential direction of each wheel (21a, 21b).

[0069] FIG. 3 is a drawing showing an electronic device according to one or more embodiments, wherein a beam projector is mounted on a base.

[0070] Referring to FIG. 3, when the beam projector (40) is mounted on the first, second, and third driving rotors (21, 22, 23), the first, second, and third driving rotors (21, 22, 23) can be pressed with a predetermined pressure by the weight of the beam projector (40). When the first, second, and third driving rotors (21, 22, 23) rotate, a frictional force can be applied between the second housings (41) of the beam projector (40) that contact the first, second, and third driving rotors (21, 22, 23), respectively. Therefore, the pose of the beam projector (40) can be changed so that the image projection direction is changed when the first, second, and third driving rotors (21, 22, 23) rotate.

[0071] Here, the change in pose of the beam projector (40) may mean that, when the second housing (41) of the beam projector (40) is formed in a spherical shape, the direction of the projection window (43) on which the image is projected is changed in various directions by performing roll, pitch, and yaw movements by the first, second, and third driving rotors (21, 22, 23) to create a cloud motion. The projection window (43) may be formed in a square shape and may be formed as a rectangle with different vertical and horizontal sides.

[0072] FIG. 4 is a block diagram illustrating components provided on a base of an electronic device according to one or more embodiments. FIG. 5 is a diagram illustrating the location of a proximity sensor provided on a base of an electronic device according to one or more embodiments.

[0073] Referring to FIG. 4, a base (10) according to one or more embodiments may include a driving unit (31), a first sensor unit (32), a first communication module (33), a first power module (34), a first memory (35), and a first processor (36).

[0074] The base (10) can receive power from an external power source through a power cable (not shown) and provide the power to the driving unit (31), the first sensor unit (32), the first communication module (33), the first memory (35), and the first processor (36). According to one or more embodiments, the base (10) can further include a battery inside the first housing (11). The battery (not shown) can supply power to the driving unit (31), the first sensor unit (32), the first communication module (33), the first memory (35), and the first processor (36). The battery can include, for example, a rechargeable battery and / or a solar battery. The battery provided in the base (10) can be charged through a separate charging adapter (not shown).

[0075] The driving unit (31) may include a plurality of driving motors arranged inside the base (10). The plurality of driving motors may include a first driving motor (31a) that drives a first driving shaft coupled to a rotation center of a first driving rotor (21) to rotate in a clockwise and counterclockwise direction, a second driving motor (31b) that drives a second driving shaft coupled to a rotation center of a second driving rotor (22) to rotate in a clockwise and counterclockwise direction, and a third driving motor (31c) that drives a third driving shaft coupled to a rotation center of a third driving rotor (23) to rotate in a clockwise and counterclockwise direction. The first, second, and third driving motors (31c) may be servo motors or stepping motors.

[0076] The first sensor unit (32) may include a proximity sensor (32a) for detecting the beam projector (40) mounted on the upper portion of the base (10). For example, the proximity sensor (32a) may be located on the inside of the base (10) as shown in FIG. 5. In this case, the proximity sensor (32a) may be located adjacent to the receiving groove (13) of the first housing (11). The proximity sensor (32a) may detect one or more conductive objects (not shown) provided on the inside or surface of the second housing (41) of the beam projector (40). The one or more conductive objects may have a thickness detectable by the proximity sensor (32a) when located on the inside of the second housing (41) of the beam projector (40). One or more conductive objects may be formed into a thin film so as not to interfere with the roll, pitch and yaw movements of the beam projector (40) when positioned on the surface of the second housing (41) of the beam projector (40).

[0077] Referring to FIG. 5, when the second housing (41) of the beam projector (40) is mounted on the first, second and third driving rotors (21, 22, 23), if the lower portion (42) of the second housing (41) of the beam projector (40) comes within a preset gap range (G) with respect to the receiving groove (13) of the first housing (11) of the base (10), the proximity sensor (32a) can transmit a detection signal to the first processor (36).

[0078] The first communication module (33) can transmit and receive signals with the beam projector (40). In this case, the beam projector (40) may be provided with a second communication module (53, see FIG. 7) capable of transmitting and receiving signals with the first communication module (33). The first communication module (33) can support the establishment of a wireless communication channel with the beam projector (40) and the user terminal device (2, see FIG. 7)) and the performance of communication through the established communication channel. The first communication module (33) operates independently from the first processor (36) and may include one or more communication processors that support wireless communication.

[0079] The first communication module (33) may include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (e.g., a local area network (LAN) communication module, or a power line communication module). The corresponding communication module among these communication modules may communicate with the user terminal device (2) via a first network (e.g., a short-range communication network such as Bluetooth, Wi-Fi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as a plurality of separate components (e.g., multiple chips).

[0080] The wireless communication module can verify or authenticate the beam projector (40) and the user terminal device (2) within a communication network, such as a first network or a second network, using subscriber information (e.g., international mobile subscriber identity (IMSI)) stored in the subscriber identification module. The wireless communication module can support a 5G network and next-generation communication technology after a 4G network, for example, NR access technology (new radio access technology). NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module can support various technologies for securing performance in high frequency bands, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module can support various requirements specified in electronic devices (e.g., beam projector (40) and user terminal device (2)) or network systems (e.g., second network).According to one or more embodiments, the wireless communication module can support a peak data rate (e.g., 20 Gbps or more) for eMBB implementation, a loss coverage (e.g., 164 dB or less) for mMTC implementation, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL) each, or 1 ms or less for round trip) for URLLC implementation.

[0081] The first power module (34) can, for example, manage power of the electronic device (1). According to one or more embodiments, the first power module (34) can include a power management integrated circuit (PMIC), a charger integrated circuit (IC), or a battery. The PMIC can have a wired and / or wireless charging method. The wireless charging method can include, for example, a magnetic resonance method, a magnetic induction method, or an electromagnetic wave method. The wireless charging method can further include an additional circuit for wireless charging, for example, a coil loop, a resonant circuit, or a rectifier. The battery can include, for example, a rechargeable battery and / or a solar battery.

[0082] The first memory (35) can store data necessary to change the pose of the beam projector (40) according to various embodiments of the present disclosure. For example, data including setting values ​​related to the pose of the beam projector (40) can be stored in the first memory (35).

[0083] The first memory (35) may be implemented as a memory embedded in the base (10) (e.g., volatile memory, non-volatile memory, hard drive, solid state drive, etc.) depending on the purpose of data storage, or may be implemented as a memory that can be detachably attached to the base (10) (e.g., memory card, external memory, etc.). One or more instructions may be stored in the first memory (35). Programs, applications, and data for driving the driving unit (31), the first sensor unit (32), the first communication module (33), and the first power module (34) may be stored in the first memory (35).

[0084] The first processor (36) controls the overall operation of the base (10). Specifically, the first processor (36) is connected to components of the base (10) and can control the overall operation of the base (10). For example, the first processor (36) is connected to a driving unit (31), a first sensor unit (32), a first communication module (33), a first power module (34), and a first memory (35) and can control the base (10). The first processor (36) may be composed of one or more processors. The first processor (36) may perform operations of the base (10) according to various embodiments of the present disclosure by executing one or more instructions stored in the first memory (35).

[0085] The first processor (36) may include one or more of an Image Signal Processor (ISP), a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), an Accelerated Processing Unit (APU), a Many Integrated Core (MIC), a Digital Signal Processor (DSP), a Neural Processing Unit (NPU), a hardware accelerator, or a machine learning accelerator. The first processor (36) may control one or any combination of other components of the base (10), and may perform operations related to communication or data processing. The first processor (36) may execute one or more programs or instructions stored in the first memory (35). For example, the first processor (36) may perform a method according to an embodiment of the present disclosure by executing one or more instructions stored in the first memory (35).

[0086] When a method according to an embodiment of the present disclosure includes multiple operations, the multiple operations may be performed by one processor or by multiple processors. For example, when a first operation, a second operation, and a third operation are performed by a method according to an embodiment, the first operation, the second operation, and the third operation may all be performed by the first processor, or the first operation and the second operation may be performed by the first processor (e.g., a general-purpose processor) and the third operation may be performed by the second processor (e.g., an artificial intelligence-specific processor).

[0087] The first processor (36) may be implemented as a single core processor including one core, or may be implemented as one or more multicore processors including multiple cores (e.g., homogeneous multicores or heterogeneous multicores). When the first processor (36) is implemented as a multicore processor, each of the multiple cores included in the multicore processor may include internal memory of the processor, such as cache memory or on-chip memory, and a common cache shared by the multiple cores may be included in the multicore processor. In addition, each of the multiple cores (or some of the multiple cores) included in the multicore processor may independently read and execute a program instruction for implementing a method according to an embodiment of the present disclosure, or all (or some) of the multiple cores may be linked to read and execute a program instruction for implementing a method according to an embodiment of the present disclosure.

[0088] When a method according to an embodiment of the present disclosure includes a plurality of operations, the plurality of operations may be performed by one core among the plurality of cores included in a multi-core processor, or may be performed by the plurality of cores. For example, when a first operation, a second operation, and a third operation are performed by a method according to an embodiment, the first operation, the second operation, and the third operation may all be performed by a first core included in the multi-core processor, or the first operation and the second operation may be performed by a first core included in the multi-core processor, and the third operation may be performed by a second core included in the multi-core processor.

[0089] In embodiments of the present disclosure, the first processor (36) may mean a system on a chip (SoC) in which one or more processors and other electronic components are integrated, a single-core processor, a multi-core processor, or a core included in a single-core processor or a multi-core processor, wherein the core may be implemented as a CPU, a GPU, an APU, a MIC, a DSP, an NPU, a hardware accelerator, or a machine learning accelerator, but embodiments of the present disclosure are not limited thereto.

[0090] FIG. 6 is a block diagram illustrating configurations provided in a beam projector of an electronic device according to one or more embodiments.

[0091] Referring to FIG. 6, a beam projector (40) according to one or more embodiments may include an image projection unit (51), a second sensor unit (52), a second communication module (53), a second power module (54), a second memory (55), and a second processor (56).

[0092] The image projection unit (51) can project an image using one of various projection methods (e.g., CRT (cathode-ray tube) method, LCD (Liquid Crystal Display) method, DLP (Digital Light Processing) method, laser method, etc.). The image projection unit (51) can include at least one light source.

[0093] The image projection unit (51) can output images with a 4:3 screen ratio, a 5:4 screen ratio, a 16:9 wide screen ratio, etc. depending on the purpose of the electronic device (1) or the user's settings, and can output images with various resolutions such as WVGA (854X480), SVGA (800X600), XGA (1024X768), WXGA (1280X720), WXGA (1280X800), SXGA (1280X1024), UXGA (1600X1200), Full HD (1920X1080), etc. depending on the screen ratio. The image projection unit (51) can perform various functions for adjusting the projection image by the control of the second processor (56). For example, the image projection unit (51) can perform a zoom function, a lens shift function, etc.

[0094] The image projection unit (51) may include a projection lens. The projection lens may be formed on one surface of the main body of the image projection unit (51) and may be formed to project light passing through the lens array to the outside of the main body. The projection lens of one or more embodiments may be an optical lens with a low-dispersion coating to reduce chromatic aberration. The projection lens may be a convex lens or a condenser lens, and the projection lens of one embodiment may adjust the focus by adjusting the positions of a plurality of sub-lenses.

[0095] The second sensor unit (52) may be placed within the second housing (41) of the beam projector (40) and may include a gyro sensor and an acceleration sensor that detect the pose of the beam projector (40).

[0096] The second communication module (53) may have a similar configuration to the first communication module (33). The second communication module (53) can transmit and receive signals with the first communication module (33). For example, the second communication module (53) can transmit data indicating the pose of the beam projector (40) provided by the second processor (56) based on data detected by the second sensor unit (52) (e.g., 3-axis acceleration value, angular velocity value, etc. of the beam projector (40)) to the first communication module (33), and can receive various signals transmitted from the first communication module (33) and transmit them to the second processor (56). The second communication module (53) can transmit and receive signals with the user terminal device (2).

[0097] The second power module (54) can supply power to the image projector (51), the second sensor unit (52), the second communication module (53), the second memory (55), and the second processor (56). The second power module (54) may include a power management integrated circuit (PMIC), a charger integrated circuit (IC), or a battery, similar to the first power module (34). The battery may include, for example, a rechargeable battery and / or a solar battery. The battery may be charged by the first power module (34) when the beam projector (40) is mounted on the upper portion of the base (10). The battery may be charged by an external power source by connecting a charging cable to a charging port (not shown) provided in the beam projector (40).

[0098] The second processor (56) is electrically connected to the image projection unit (51), the second sensor unit (52), and the second communication module (53) to control the overall operation of the beam projector (40). The second processor (56) may have a configuration similar to that of the first processor (36). The second processor (56) may perform the operation of the beam projector (40) according to various embodiments of the present disclosure by executing at least one instruction stored in the second memory (55).

[0099] The second processor (56) can perform keystone correction when the beam projector (40) is positioned in a straight line with the projection surface to display a screen with a relatively accurate ratio. However, if this is not satisfied due to space conditions, the screen may go off the projection surface or project a distorted diamond-shaped screen in all directions, such as up, down, left, and right. Here, keystone correction may refer to a function of adjusting the screen to be displayed, that is, the corners of the projected screen, by forcibly moving them to make it closer to the original rectangular shape. The electronic device (1) according to one or more embodiments can perform at least one of roll, pitch, and yaw movements of the beam projector (40) before the software keystone correction is performed by the second processor (56), thereby performing physical correction in advance, thereby minimizing the deterioration of the image quality of the screen displayed on the projection surface.

[0100] The second processor (56) can perform color matching, leveling correction (horizontal correction), focus correction, etc.

[0101] FIG. 7 is a flowchart illustrating the operation of an electronic device according to one or more embodiments.

[0102] An electronic device (1) according to one or more embodiments can stably project an image onto a projection surface by adjusting the pose of a beam projector (40) mounted on the upper portion of a base (10).

[0103] Referring to Fig. 7, the projection surface is scanned by a scanner included in the second sensor unit (52) and the acquired scan value is transmitted to the second processor (56) (7001). The second processor (56) stores data on the target projection pose of the beam projector (40) acquired based on the scan value (hereinafter referred to as “target value”) in the second memory (55) (7002).

[0104] The second processor (56) stores data on the current pose of the beam projector (40) obtained through the gyro sensor and acceleration sensor included in the second sensor unit (52) (hereinafter referred to as “current value”) in the second memory (55) (7003).

[0105] The second processor (56) compares the target value stored in the second memory (55) with the current value to obtain (calculate or produce) the rotation direction and angle (hereinafter referred to as “correction value”) of the beam projector (40) so that the pose of the beam projector (40) matches the target value (7004).

[0106] The second processor (56) controls the rotation of at least two of the first, second and third driving rotors (21, 22, 23) by driving at least two of the first, second and third driving motors (31a, 31b, 31c) based on the correction value (7005).

[0107] Therefore, as at least two of the first, second and third driving rotors (21, 22, 23) rotate, the beam projector (40) can change its pose to match or approach the target value (7006).

[0108] After the pose of the beam projector (40) is changed as described above, the projection surface is scanned again and the pose change process of the beam projector (40) described above is repeated to correct the pose of the beam projector (40) so that it can be accurately matched to the target value.

[0109] Below, an example of a user changing the pose of a beam projector (40) using a user terminal device (2) is described.

[0110] FIG. 8 is a block diagram illustrating an example of an electronic device transmitting and receiving signals wirelessly with a user terminal device according to one or more embodiments. FIG. 9 is a diagram illustrating an example of a user interface displayed on a user terminal device to control an electronic device according to one or more embodiments.

[0111] Referring to FIG. 8, the electronic device (1) can be controlled by a user terminal device (2). For example, the electronic device (1) can wirelessly transmit and receive signals with the user terminal device (2). The user terminal device (2) can be a mobile device (e.g., a smart phone, a tablet PC, a remote controller equipped with a display and a number of operation buttons, etc.).

[0112] Referring to FIG. 9, a user terminal device (2) may be provided with a user interface for controlling an electronic device (1) on a display unit (2a). The user interface may display, for example, a beam projector image (2b) that three-dimensionally displays a pose of a beam projector (40) of the electronic device (1), a first text (2c) that displays a roll operation menu of the beam projector (40), a first arrow image (2d) that displays a roll operation direction, a second text (2e) that displays a pitch operation menu of the beam projector (40), a second arrow image (2f) that displays a pitch operation direction, a first text (2g) that displays a yaw operation menu of the beam projector (40), and a third arrow image (2h) that displays a yaw operation direction.

[0113] The first arrow image (2d) may include a clockwise arrow image and a counterclockwise arrow image. When a user swipes along the first arrow image (2d), for example, in a clockwise or counterclockwise direction, the beam projector image (2b) may be controlled to change its pose in the swiping direction on the first arrow image (2d) by one or more processors (not shown) included in the user terminal device (2). Here, the swipe may mean an action in which the user slides a finger in a certain direction and distance while making contact with the display screen of the user terminal device (2).

[0114] The user terminal device (2) can transmit a first gesture signal corresponding to the swiping direction on the first arrow image (2d) to the base (10). The first processor (36) of the base (10) can control the beam projector (40) to perform a roll motion by driving the first, second, and third drive motors (31a, 31b, 31c) based on the first gesture signal received through the first communication module (33).

[0115] Fig. 10 is a plan view illustrating an example of operation of a plurality of driving rotors for rolling a beam projector of an electronic device according to one or more embodiments. Fig. 11 is a front view illustrating an example of rolling a beam projector of an electronic device according to one or more embodiments.

[0116] When the user swipes along the arrow image indicated in the clockwise direction of the first arrow image (2d) indicating the roll motion direction displayed on the user terminal device (2), the user terminal device (2) can transmit the corresponding swipe signal to the first communication module (33) of the base (10).

[0117] The first communication module (33) can transmit the first gesture signal to the first processor (36). The first processor (36) can control the driving unit (31) to roll the beam projector (40) clockwise based on the first gesture signal. Referring to FIGS. 10 and 11, the first processor (36) can control the first and second driving motors (31a, 31b) to rotate the first and second driving rotating bodies (21, 22) in the same direction, and control the third driving motor (31c) to rotate the third driving rotating body (23) in the opposite direction to the rotational direction of the first and second driving rotating bodies (21, 22). The beam projector (40) can roll in the first direction (F1), which is the sum direction of the vectors (R1, R2, R3) according to the rotation of the first, second, and third driving rotating bodies (21, 22, 23).

[0118] The first processor (36) controls the driving unit (31) to cause the beam projector (40) to roll (e.g., rotate to the right or left when viewed from the front as in FIG. 11) by the first, second and third driving rotors (21, 22, 23), thereby adjusting the image projected by the image projection unit (51) to a desired pose on the projection surface.

[0119] FIG. 12 is a diagram illustrating an example in which a beam projector of an electronic device according to one or more embodiments projects a screen in a vertical direction on a projection surface by a roll motion. FIG. 13 is a diagram illustrating a screen projected vertically on a projection surface by a beam projector of an electronic device according to one or more embodiments.

[0120] Referring to Fig. 12, the beam projector (40) can be arranged in a vertical direction so that the projection window (43) continues to roll as shown in Fig. 11 by the rotation of the first, second, and third driving rotors (21, 22, 23). In this case, the screen (70) displayed on the projection surface can be projected in a vertical direction as shown in Fig. 13. In this way, one or more electronic devices (1) according to other embodiments can change the screen (70) projected on the projection surface to correspond to the image in a horizontal or vertical direction by rolling the beam projector (40).

[0121] Again, referring to FIG. 9, the second arrow image (2f) may include a left arrow image and a right arrow image. When a user swipes along the second arrow image (2f), for example, in the left or right direction, the beam projector image (2b) may be controlled by one or more processors (not shown) included in the user terminal device (2) to change its pose in the direction of the swiping on the second arrow image (2f).

[0122] The user terminal device (2) can transmit a second gesture signal corresponding to the swiping direction on the second arrow image (2f) to the base (10). The first processor (36) of the base (10) can control the beam projector (40) to perform a pitch motion by driving the first and second driving motors (31a, 31b) based on the second gesture signal received through the first communication module (33).

[0123] FIG. 14 is a plan view illustrating an example of operation of a plurality of driving rotors for pitch operation of a beam projector of an electronic device according to one or more embodiments. FIG. 15 is a side view illustrating an example of pitch operation of a beam projector of an electronic device according to one or more embodiments.

[0124] Referring to FIGS. 14 and 15, when a user swipes along the arrow image indicated in the downward direction of the second arrow image (2f) indicating the pitch motion direction displayed on the user terminal device (2), a second gesture signal can be transmitted from the user terminal device (2) to the first communication module (33) of the base (10).

[0125] The first communication module (33) can transmit the second gesture signal to the first processor (36). The first processor (36) can control the driving unit (31) to perform a pitch motion in which the beam projector (40) rotates downward forward based on the second gesture signal. For example, the first processor (36) can control the first driving motor (31a) to rotate the first driving rotor (21) in one direction as shown in FIG. 14, and can control the second driving motor (31b) to rotate the second driving rotor (22) in a direction opposite to the rotation direction of the first driving rotor (22). The beam projector (40) can be pitch-operated in the second direction (F2), which is the sum direction of vectors (R4, R5) according to the rotation of the first and second driving rotors (21, 22), as shown in FIG. 15.

[0126] The first processor (36) controls the driving unit (31) to cause the beam projector (40) to perform a pitch motion (for example, a motion to rotate clockwise or counterclockwise when viewing the beam projector (40) from the side as shown in FIG. 14) by the first and second driving rotors (21, 22), thereby adjusting the image projected by the image projection unit (51) to a desired pose on the projection surface.

[0127] FIG. 16 is a side view showing an example of a beam projector of an electronic device according to one or more embodiments, wherein the projection window is directed toward the receiving groove of the base by a pitch motion.

[0128] Referring to FIG. 16, the beam projector (40) can be positioned in a pose in which the projection window (43) faces the receiving groove (13) of the base (10) when the pitch motion continues due to the rotation of the first and second driving rotors (21, 22) as in FIG. 14. When the pose of the beam projector (40) is adjusted so that the projection window (43) of the beam projector (40) faces the receiving groove (13) of the base (10) while not projecting an image with the beam projector (40), the projection window (43) can be protected from external impact and contamination by foreign substances (e.g., dust, etc.) can be improved or minimized.

[0129] Again, referring to FIG. 9, the third arrow image (2h) may include a left arrow image and a right arrow image. When a user swipes along the third arrow image (2h), for example, in the left or right direction, the beam projector image (2b) may be controlled by one or more processors (not shown) included in the user terminal device (2) to change its pose in the direction of the swiping on the third arrow image (2h).

[0130] The user terminal device (2) can transmit a third gesture signal corresponding to the swiping direction on the third arrow image (2h) to the base (10). The first processor (36) of the base (10) can control the beam projector (40) to perform the following motion by driving the first and second driving motors (31a, 31b) based on the third gesture signal received through the first communication module (33).

[0131] FIG. 17 is a plan view illustrating an example of operation of a plurality of driving rotors for yaw operation of a beam projector of an electronic device according to one or more embodiments. FIG. 18 is a front view illustrating an example of yaw operation of a beam projector of an electronic device according to one or more embodiments.

[0132] Referring to FIGS. 17 and 18, when a user swipes along the arrow image indicated in the right direction of the third arrow image (2h) indicating the pitch motion direction displayed on the user terminal device (2), a third gesture signal can be transmitted from the user terminal device (2) to the first communication module (33) of the base (10).

[0133] The first communication module (33) can transmit a third gesture signal to the first processor (36). The first processor (36) can control the driving unit (31) to perform a yaw motion to rotate the beam projector (40) to the right based on the third gesture signal. For example, the first processor (36) can control the first, second, and third driving motors (31a, 31b, 31c) as shown in FIG. 17 to rotate the first, second, and third driving rotors (21, 22, 23) in the same direction. The projector (40) can be yawed in the third direction (F2), which is the sum direction of the vectors (R6, R7, R8) according to the rotation of the first, second, and third driving rotors (21, 22, 23), as shown in FIG. 18.

[0134] The first processor (36) controls the driving unit (31) to cause the beam projector (40) to perform a rotational motion (for example, a motion to rotate to the right or left when looking at the beam projector (40) from the front as shown in FIG. 18) by the first, second and third driving rotors (21, 22, 23), thereby adjusting the image projected by the image projection unit (51) to a desired pose on the projection surface.

[0135] FIG. 19 is a diagram illustrating an example of a beam projector of an electronic device according to one or more embodiments changing a pose in real time based on an image projected onto a projection surface.

[0136] Referring to FIG. 19, a beam projector (40) of an electronic device according to one or more embodiments may change a pose in real time in response to images (71-1, 71-2, 71-3) projected onto a projection surface. For example, a second processor (56) provided in the beam projector (40) may project an image displayed in a first-person viewpoint as in FIG. 19 onto the projection surface through an image projection unit (51). The second processor (56) may control the transmission of pose data previously included in the image to a first communication module (33) provided on the base (10) through a second communication module (53) while the image is being projected.

[0137] The first processor (36) can control the driving unit (31) based on pose data received through the first communication module (33). For example, when the first-person viewpoint of the image is displayed approximately horizontally, the first processor (36) can control the driving unit (31) to rotate at least one of the first, second, and third driving rotation bodies (21, 22, 23) so that the projection window (43) of the beam projector (40) becomes approximately horizontal. Accordingly, the screen (71-1) displayed on the projection surface can be maintained approximately horizontal.

[0138] The first processor (36) can control the driving unit (31) to rotate at least one of the first, second, and third driving rotating bodies (21, 22, 23) so that the projection window (43) of the beam projector (40) is tilted approximately to the left or right when the first-person viewpoint of the image is displayed tilted approximately to the left or right. Accordingly, the screen (71-1) displayed approximately horizontally on the projection surface can be displayed as a screen tilted to the left (71-2) or a screen tilted to the right (71-3).

[0139] The pose of the beam projector (40) can be changed based on pose data included in the image in advance, but is not limited thereto. For example, when a video game screen (e.g., a racing game or simulation game controlling an aircraft, vehicle, etc.) is displayed on a projection surface through the image projection unit (51) of the beam projector (40), the first processor (36) can change the pose of the screen displayed on the projection surface by changing the pose of the beam projector (40) based on the user's operation of an input device (e.g., a game wheel, a game pad, a joystick, a keyboard, etc.) for operating the video game.

[0140] FIG. 20 is a plan view showing an example in which a plurality of driving rotors provided on a base of an electronic device according to one or more embodiments move away from the center of the base or to a position adjacent to the center of the base.

[0141] Referring to FIG. 20, a base (10') of an electronic device according to one or more embodiments may be provided with first, second, and third drive rotors (21', 22', 23') partially protruding from a first housing (11') so as to be linearly movable. For example, the first, second, and third drive rotors (21', 22', 23') may simultaneously move away from the center (14') of the base (10') or may simultaneously move in a direction adjacent to the center (14') of the base (10').

[0142] The first, second and third drive shafts, which are respectively coupled to the centers of the first, second and third drive rotors (21', 22', 23'), can simultaneously move away from the center (14') of the base (10') or in a direction close to the center of the base (10') by separate drive motors or actuators. In this case, the first, second and third drive shafts can move together with the first, second and third drive motors to which they are respectively connected. Inside the first housing (11') of the base (10'), a first structure (not shown) that guides the movement of the first drive shaft and the first drive motor, a second structure (not shown) that guides the movement of the second drive shaft and the second drive motor, and a third structure (not shown) that guides the movement of the third drive shaft and the third drive motor may be provided. Each of the first, second and third structures may include a rail and a movable member that moves along the rail.

[0143] In this way, since the first, second and third driving rotors (21', 22', 23') can move in a straight direction on the base (10'), beam projectors of various sizes mounted on the first, second and third driving rotors (21', 22', 23') can be stably supported.

[0144] FIGS. 21 to 24 are drawings showing various shapes of a beam projector of an electronic device according to one or more embodiments.

[0145] The beam projector (40) of the electronic device (1) according to one or more embodiments may be mounted on the upper portion of the base (10) and may have a portion (hereinafter referred to as a “support portion”) that comes into contact with the first, second and third driving rotors (21, 22, 23) to perform roll, pitch and yaw movements, and may have a spherical shape. For example, the second housing (41) forming the outer appearance of the beam projector (40) may have an entirely spherical shape, as shown in FIG. 1. However, the second housing (41) of the beam projector (40) may have only a support portion formed into a convex shape or a hemispherical shape with a predetermined curvature.

[0146] Referring to Fig. 21, the second housing (41a) of the beam projector (40a) may have a convex shape in which the support portion (47a) has a predetermined curvature. In this case, the shape of the second housing (41a) of the beam projector (40a) may be a shape in which a portion (48a) is removed from a spherical shape. The projection window (43a) may be provided in the support portion (47a) of the second housing (41a). In this way, the beam projector (40a) can perform roll, pitch, and yaw movements by driving the first, second, and third driving rotors (21, 22, 23) even if the second housing (41a) does not have a spherical shape as a whole and only the support portion (47a) maintains a convex or hemispherical shape.

[0147] As shown in FIGS. 22 to 24, the second housing (41b, 41c, 41d) of the beam projector (40b, 40c, 40d) has a support portion (47b, 47c, 47d) formed in a convex shape or hemispherical shape with a predetermined curvature, and a portion (48b, 48c, 48d) extended from the support portion (47b) can be formed in various shapes to add aesthetic appeal to the design.

[0148] Referring to Fig. 22, a portion (48b) of the second housing (41b) of the beam projector (40b) may have a cone or polyhedral shape. In this case, the projection window (43b) of the second housing (41b) may be provided on the support portion (47b).

[0149] Referring to Fig. 23, a portion (48c) of the second housing (41c) of the beam projector (40c) may have a cylindrical shape. In this case, the projection window (43c) may be provided in a portion (48c) of the second housing (41c). However, the projection window (43c) may also be provided in a support portion (47c) rather than a portion (48c) of the second housing (41c).

[0150] Referring to Fig. 24, a portion (48d) of the second housing (41d) of the beam projector (40d) may be shaped like an animal's ear. In this case, a projection window (43d) may be provided in a portion (48d) of the second housing (41d).

[0151] In this way, the beam projector (40b, 40c, 40d) can perform rolling, pitch, and yaw motions by the first, second, and third driving rotors (21, 22, 23) and the supporting portion (47b, 47c, 47d), and the part (48b, 48c, 48d) of the second housing (41b, 41c, 41d) that is not involved in the rolling, pitch, and yaw motions or is involved in the rolling, pitch, and yaw motions to a low degree, can be formed in various shapes to improve the design. In addition, the part (48b, 48c, 48d) of the second housing (41b, 41c, 41d) can be provided with additional functions in addition to the design improvement, such as an indicator that displays the remaining power of the second power module (54) (e.g., a battery) included in the beam projector (40).

[0152] FIG. 25 is a diagram illustrating various devices applied to the base of an electronic device according to one or more embodiments. FIG. 26 and FIG. 27 are diagrams illustrating examples of devices mounted on the base of an electronic device according to one or more embodiments being displayed on a user's mobile terminal.

[0153] Referring to FIG. 25, an electronic device (1) according to one or more embodiments may include a base (10) and a beam projector (40) mounted on the upper portion of the base (10). The beam projector (40) is not coupled (or fixed, restrained) to the base (10) by a separate locking device or the like. That is, the beam projector (40) is mounted on the first, second, and third driving rotors (21, 22, 23) that partially protrude toward the upper portion of the base (10).

[0154] An electronic device (1) according to one or more embodiments may further include a speaker (80) and / or a photographing device (90) in addition to a beam projector (40). In this case, the speaker (80) and the photographing device (90) may have a spherical shape, similar to the beam projector (40). That is, the speaker (80) may include a spherical third housing (81), and the photographing device (90) may include a spherical fourth housing (91).

[0155] Accordingly, one of a beam projector (40), a speaker (80), and a photographing device (90) can be mounted on the base (10) and its pose can be changed. In this way, the base (10) can be compatible with the speaker (80) and the photographing device (90).

[0156] The beam projector (40), the speaker (80), and the photographing device (90) can be detected by an RFID (radio frequency identification) reader included in the first sensor section (32) of the base (10). In this case, a first RFID tag detectable by the RFID reader may be provided in the second housing (41) of the beam projector (40), a second RFID tag detectable by the RFID reader may be included in the third housing (81) of the speaker (80), and a second RFID tag detectable by the RFID reader may be included in the fourth housing (91) of the photographing device (90).

[0157] Accordingly, the RFID reader can detect the RFID tag of a device (beam projector, speaker, photographing device) mounted on the upper part of the base (10) and transmit a detection signal to the first processor (36) provided on the base (10).

[0158] For example, when a beam projector (40) is mounted on the upper part of the base (10), the first processor (36) can transmit a first ID signal based on a detection signal received from the RFID reader. The user terminal device (2') can display a beam projector image (121) on the display screen (110) as shown in FIG. 26 based on the first ID signal. Alternatively, when a speaker (80) is mounted on the upper part of the base (10), the first processor (36) can transmit a second ID signal based on a detection signal received from the RFID reader. The user terminal device (2') can display a speaker image (121) on the display screen (110) based on the second ID signal.

[0159] The user interface displayed on the display screen (110) illustrated in FIGS. 26 and 27 can display images representing roll, pitch, and yaw motions together, like the screen of the display unit (2a) illustrated in FIG. 9.

[0160] FIG. 28 is a diagram illustrating an example of using multiple electronic devices according to one or more embodiments.

[0161] Referring to FIG. 28, an electronic device according to one or more embodiments may include multiple electronic devices. For example, multiple electronic devices arranged in a given space (200) may include first, second, third, fourth, and fifth electronic devices (1, 3-1, 3-2, 3-3, 3-4, 3-5).

[0162] The first electronic device (1) may include a base (10, see FIG. 27) and a beam projector (40, see FIG. 27), and the second, third, fourth and fifth electronic devices (3-1, 3-2, 3-3, 3-4) may each include a base (10) and a speaker (80, see FIG. 27).

[0163] In this case, the first electronic device (1) can project an image toward the projection surface (210) through a beam projector (40). The second and third electronic devices (3-1, 3-2) can be arranged with a gap in front of the first electronic device (1), and the fourth and fifth electronic devices (3-3, 3-4) can be arranged with a gap in the rear of the first electronic device (1). The speakers (80) of the second, third, fourth, and fifth electronic devices (3-1, 3-2, 3-3, 3-4) arranged in this manner can output sound in a three-dimensional manner.

[0164] The second, third, fourth and fifth electronic devices (3-1, 3-2, 3-3, 3-4) are not limited to four as illustrated in FIG. 28. For example, six electronic devices may be included to implement 5.1 channel sound. Each of the six electronic devices may include a base (10) and a speaker (80). The six speakers (80) may include two main speakers positioned on the left and right sides of the projection surface (20), a center speaker positioned at a position corresponding to the projection surface (e.g., directly below the projection surface), two surround speakers positioned on the left and right sides behind the user (or viewer), and one subwoofer speaker positioned adjacent to one of the two main speakers.

[0165] FIG. 29 is a perspective view illustrating an example of an electronic device having a plurality of drive wheels to enable the base to move according to one or more embodiments.

[0166] Referring to FIG. 29, an electronic device (1b) according to one or more embodiments may include a plurality of wheels capable of moving along a floor. The plurality of wheels may be provided on a bottom surface of a base (10b) (a bottom surface of a first housing of the base (10b)). The plurality of wheels may include first and second driving wheels (17a, 17b) and four auxiliary wheels (18a, 18b).

[0167] A pair of driving wheels (17a, 17b) can be positioned at a constant distance on either side from the center of the base (10b). The first and second driving wheels (17a, 17b) can rotate clockwise or counterclockwise by receiving power from the first and second driving motors (not shown) provided inside the base (10b).

[0168] The first processor (36, see FIG. 4) provided on the base (10b) can control a pair of driving motors, respectively. For example, when moving the electronic device (1b) forward or backward, the first processor (36) can control the first and second driving motors so that the first and second driving wheels (17a, 17b) rotate at the same speed and in the same direction. When changing the moving direction of the electronic device (1b) while it is moving, the first processor (36) can control the first and second driving motors so that the first and second driving wheels (17a, 17b) rotate at different speeds and in the same direction.

[0169] The plurality of auxiliary wheels (18a, 18b) may be arranged such that two auxiliary wheels (18a) are positioned in front of the first and second driving wheels (17a, 17b), and the remaining two auxiliary wheels (18b) are positioned in the rear of the first and second driving wheels (17a, 17b). The plurality of auxiliary wheels (18a, 18b) are idle wheels that are not powered by a separate motor.

[0170] The number of auxiliary wheels (18a, 18b) is not limited to four. For example, when the first and second driving wheels (17a, 17b) are arranged at the rear of the bottom surface of the base (10b), two auxiliary wheels (18a, 18b) may be arranged at the front of the bottom surface of the base (10b).

[0171] FIG. 30 is a diagram illustrating an example of displaying a large screen using multiple electronic devices according to one or more embodiments. FIG. 31 is a diagram illustrating a screen projected onto a projection surface by multiple electronic devices according to one or more embodiments.

[0172] Referring to FIG. 30, an electronic device according to one or more embodiments may include multiple electronic devices. For example, the multiple electronic devices placed in a given space (200) may include first, second, and third electronic devices (1-1, 1-2, 1-3) that project images onto a projection surface (210), and fourth and fifth electronic devices (4-1, 4-2) that output sounds. The first, second, and third electronic devices (1-1, 1-2, 1-3) may each include a base (10) and a beam projector (40). The fourth and fifth electronic devices (4-1, 4-2) may each include a base (10) and a speaker (80).

[0173] For example, among the first, second, and third electronic devices (1-1, 1-2, 1-3), the second processor (56) provided in the beam projector (40) of the first electronic device (1-1) can control the image projection units (51) provided in the beam projectors (40) of the first, second, and third electronic devices (1-1, 1-2, 1-3) to output the image (7) without distortion based on at least one of the size information, ratio information, and resolution information of the image (7) to be projected on the projection surface (210).

[0174] Referring to FIG. 31, the first, second, and third electronic devices (1-1, 1-2, 1-3) are arranged in a row along the projection surface (210) at a first interval and can each project an image toward the projection surface (210). For example, the beam projector (40) of the first electronic device (1-1) can output a first part (7-1) of the image (7) (e.g., a first partial image), the beam projector (40) of the second electronic device (1-2) can output a second part (7-2) of the image (7) (e.g., a second partial image), and the beam projector (40) of the third electronic device (1-3) can output a third part (7-3) of the image (7) (e.g., a first partial image).

[0175] The first, second, and third parts (7-1, 7-2, 7-3) projected onto the projection surface (210) can be sequentially and adjacently projected. The second processor (56) provided in the beam projector (40) of the first electronic device (1-1) can perform edge blending so that the boundary line of the overlapping part of the first part (7-1) and the second part (7-2), and the boundary line of the second part (7-2) and the third part (7-3) are not highlighted, and the first part (7-1) and the second part (7-2), and the second part (7-2) and the third part (7-3) are naturally connected (e.g., seamlessly).

[0176] In this way, the first, second and third electronic devices (1-1, 1-2, 1-3) can output one image (7) in which the first, second and third parts (7-1, 7-2, 7-3) are combined to display a large screen on the projection surface (210).

[0177] FIG. 32 is a diagram illustrating an example of displaying an ultra-high definition screen using a plurality of electronic devices according to one or more embodiments.

[0178] First and second driving wheels (17a, 17b) and four auxiliary wheels (18a, 18b) may be provided on the bottom surface of each base (10) of the first, second, and third electronic devices (1-1, 1-2, 1-3) (see Fig. 29). Accordingly, the first, second, and third electronic devices (1-1, 1-2, 1-3) are movable, and thus the spacing between them can be changed.

[0179] Referring to FIG. 32, in order to display images projected from the beam projectors (40) of the first, second, and third electronic devices (1-1, 1-2, 1-3) as ultra-high definition images or high brightness images on the projection surface (210), the first, second, and third electronic devices (1-1, 1-2, 1-3) may be moved from the positions shown in FIG. 31 to a predetermined position and arranged in a row with a second interval narrower than the first interval.

[0180] In Fig. 32, the unexplained reference numeral 200 is an area where a number of electronic devices are placed, and 4-1 and 4-2 are the fourth and fifth electronic devices that output sound.

[0181] FIG. 33 is a diagram illustrating an example of displaying a main screen and a secondary screen using multiple electronic devices according to one or more embodiments.

[0182] Referring to FIG. 33, in order to divide the images projected from the beam projectors (40) of the first, second, and third electronic devices (1-1, 1-2, 1-3) into a main image and an auxiliary image, the first and second electronic devices (1-1, 1-2) can be moved and arranged at a third interval, and the second and third electronic devices (1-2, 1-3) can be moved and arranged at a fourth interval that is narrower than the third interval.

[0183] In this case, the beam projectors (40) of the second and third electronic devices (1-2, 1-3) can project the first and second parts of the main image onto the projection surface (210), respectively. The beam projector (40) of the first electronic device (1-1) can project an auxiliary image onto the projection surface (210). The auxiliary image can be projected onto the projection surface (210) at a distance from the main image so as to be distinguishable from the main image. The auxiliary image can be a different image from the main image. For example, if the main image is a video about economic news, the auxiliary image can be a video displaying stock information, exchange rate information, etc.

[0184] In Fig. 33, the unexplained reference numeral 200 is an area where a number of electronic devices are placed, and 4-1 and 4-2 are the fourth and fifth electronic devices that output sound.

[0185] The plurality of electronic devices according to one or more embodiments are not limited to three electronic devices projecting an image (7) onto the projection surface (210). For example, the electronic devices projecting an image (7) onto the projection surface (210) may include two electronic devices or four or more electronic devices.

[0186] The shape of the beam projector of the electronic device according to one or more embodiments is not limited to a spherical or hemispherical shape. For example, the shape of the beam projector may be approximately disc-shaped. Hereinafter, an electronic device having a disc-shaped beam projector will be described with reference to the drawings.

[0187] FIG. 34 is a drawing showing an electronic device according to one or more embodiments, with the base and beam projector separated.

[0188] Referring to FIG. 34, an electronic device (700) according to one or more embodiments may include a base (710) and a beam projector (740) disposed on top of the base (710).

[0189] The base (710) may include a first housing (711) and a pair of rotating bodies (721, 722) that are rotatably provided in the first housing (711).

[0190] The first housing (711) may include a lower housing (711a) and an upper housing (711b) rotatably coupled to the upper side of the lower housing (711a). The upper housing (711b) may be rotated by a predetermined angle, for example, in a clockwise and counterclockwise direction around the Z-axis, by a first drive motor () included in the drive unit ().

[0191] A pair of rotors (721, 722) may be rollers arranged approximately parallel to each other with a predetermined gap in the upper housing (711b). A pair of rotors (721, 722) may include a driving rotor (721) that rotates by receiving power from a driving unit () and a driven rotor (722) that is rotatably arranged in the upper housing (711b) without receiving a separate driving force. The driving rotor (721) and the driven rotor (722) may be formed in the shape of rollers having a predetermined length. When the beam projector (740) is mounted on the driving rotor (721) and the driven rotor (722), it may perform a yaw motion about the Y-axis as the driving rotor () rotates.

[0192] The first housing (711) may have a receiving groove (713) formed on the upper surface thereof corresponding to the shape of the beam projector (740). For example, the second housing (741) of the beam projector (740) may have a roughly disk shape. In this case, the receiving groove (733) may have a curved surface that roughly corresponds to the outer circumference of the second housing (41) of the beam projector (40). When the second housing (741) of the beam projector (740) is mounted on the driving rotor (721) and the driven rotor (722) formed on the upper housing (711b) of the first housing (711), a portion of the outer circumference of the second housing (741) adjacent to the receiving groove (733) may be received in the receiving groove (733). While the beam projector (740) is in a pitch operation while being supported by the driving rotor (721) and the driven rotor (722) on the upper side of the base (710), the lower part of the second housing (741) of the beam projector (740) does not interfere with the upper surface of the upper housing (711b) of the first housing (711).

[0193] The beam projector (740) can adjust the direction of the image projection by performing one of the pitch and yaw movements on the upper side of the base (710) or by performing the pitch and yaw movements sequentially or simultaneously to project the image onto a projection surface (e.g., a part of the physical space where the image is output (such as a wall) or a separate screen).

[0194] FIG. 35 is a diagram illustrating an electronic device according to one or more embodiments, wherein a beam projector is mounted on a base. FIG. 36 is a front view illustrating an example of a beam projector of an electronic device according to one or more embodiments performing a pitch operation.

[0195] Referring to Fig. 35, when the beam projector (740) is mounted on the driving rotor (721) and the driven rotor (722), the driving rotor (721) and the driven rotor (722) can be pressed to a predetermined pressure by the weight of the beam projector (740).

[0196] Referring to Fig. 36, when the driving rotor (721) rotates, frictional force may be applied between the driving rotor (721), the driven rotor (722), and the second housing (741) of the beam projector (740) that contacts them, respectively. Accordingly, the beam projector (740) may change its pose so that the image projection direction is changed while performing a pitch motion by the driving rotor (721) and the driven rotor (722).

[0197] FIG. 37 is a front view showing an example of a beam projector of an electronic device in a yaw motion according to one or more embodiments.

[0198] Referring to FIG. 37, the upper housing (711b) of the first housing (711) can rotate clockwise and counterclockwise by a predetermined angle, for example, around the Z-axis. Accordingly, the beam projector (740) positioned on the upper portion of the upper housing (711b) can perform a yaw motion by rotating around the Z-axis together with the upper housing (711b).

[0199] FIG. 38 is a perspective view showing an example of a pair of rotors provided on a base of an electronic device according to one or more embodiments moving toward or away from each other.

[0200] Referring to FIG. 38, the base (710) of an electronic device according to one or more embodiments may be provided with a driving rotor (721) and a driven rotor (722) that are linearly movable in an upper housing (711b) of a first housing (711). For example, the driving rotor (721) and the driven rotor (722) may simultaneously move in directions away from each other and toward each other.

[0201] A drive shaft (not shown) rotatably connected by a drive motor may be coupled to the center of the drive rotor (721). A rotation shaft (not shown) rotatably supported on a part of the upper housing (711b) of the first housing (711) may be coupled to the center of the driven rotor (722).

[0202] The drive shaft of the driving rotor (721) and the drive shaft of the driven rotor (722) can be driven by separate drive motors or actuators to move in directions away from each other and toward each other. The drive shaft can move together with the connected drive motor. A first structure (not shown) that guides the movement of the drive shaft and the drive motor of the driving rotor (721) and a second structure (not shown) that guides the movement of the rotational axis of the driven rotor (722) can be provided on the inside of the upper housing (711b) of the first housing (711). Each of the first and second structures can include a rail and a movable member that moves along the rail.

[0203] Since the driving rotor (721) and the driven rotor (722) can move in a straight line in a direction away from each other and in a direction toward each other on the base (710), beam projectors of various sizes mounted on the driving rotor (721) and the driven rotor (722) can be stably supported.

[0204] The base (710) of the electronic device (700) according to one or more embodiments may include a driving unit (31), a first sensor unit (32), a first communication module (33), a first power module (34), a first memory (35), and a first processor (36) like the base (10) of the electronic device (1) described above (see FIG. 4). In addition, the beam projector (740) of the electronic device (700) according to one or more embodiments may include an image projection unit (51), a second sensor unit (52), a second communication module (53), a second power module (54), a second memory (55), and a second processor (56) like the beam projector (40) of the electronic device (1) described above (see FIG. 6).

[0205] Although the preferred embodiments have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above, and various modifications may be made by a person having ordinary skill in the art to which the present disclosure pertains without departing from the gist of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical idea or prospect of the present disclosure.

Claims

1. A base provided with a plurality of driving rotors; A beam projector comprising an image projection unit mounted on the plurality of driving rotors and configured to project an image; A first driving unit that provides power to the above plurality of driving rotors; and An electronic device, comprising: a processor for controlling the driving unit to change the pose of the beam projector mounted on the plurality of driving rotating bodies by rotating the plurality of driving rotating bodies in a first direction and a second direction opposite to the first direction.

2. In paragraph 1, The above multiple driving rotors are, It includes a first wheel, a second wheel, and a third wheel, a portion of which protrudes from the upper surface of the beam projector, An electronic device wherein the first wheel, the second wheel, and the third wheel are arranged to correspond to each side of an equilateral triangle.

3. In paragraph 2, An electronic device, wherein each of the first wheel, the second wheel and the third wheel is an omni wheel.

4. In paragraph 2, The above beam projector, An electronic device, wherein a portion of the device is formed as a curved surface so as to perform a roll motion, a pitch motion, and a yaw motion by driving the first wheel, the second wheel, and the third wheel.

5. In paragraph 4, The above beam projector is an electronic device having a sphere shape.

6. In paragraph 4, The above beam projector, An electronic device, wherein a portion in contact with the first wheel, the second wheel, and the third wheel has a hemisphere shape.

7. In paragraph 4, The above beam projector, An electronic device further comprising a second driving unit for moving the first wheel, the second wheel, and the third wheel in directions away from each other and toward each other.

8. In paragraph 1, The above base is, lower housing; an upper housing rotatably coupled to the upper side of the lower housing; and An electronic device comprising a third driving unit for rotating the upper housing.

9. In paragraph 8, The above plurality of driving rotors include a first roller and a second roller, a portion of which protrudes from the upper surface of the upper housing, An electronic device wherein the first roller and the second roller are arranged parallel to each other with a space therebetween.

10. In paragraph 9, The above beam projector, The outer surface has a disk shape so that it comes into contact with the first roller and the second roller, An electronic device that performs a pitch motion by driving one of the first roller and the second roller.

11. In paragraph 9, The above beam projector, An electronic device further comprising a fourth driving unit for moving the first roller and the second roller away from each other and toward each other.

12. In paragraph 1, The above base is, An electronic device further comprising a receiving groove in which a part of the beam projector is received.

13. In paragraph 1, The above base is, At least one pair of driving wheels provided on the lower surface of the above base; A plurality of auxiliary wheels provided on the lower surface of the above base; and An electronic device further comprising a fifth drive unit providing power to at least one pair of drive wheels.

14. In paragraph 1, The above base is, An electronic device further comprising a sensor unit for detecting the beam projector mounted on the upper side of the base.

15. In paragraph 1, The above beam projector, Further comprising a battery for supplying power to the above image projector, The above base is, An electronic device further comprising a power module for providing power to the driving unit and charging the battery.

Images