KR20220152112A - Electronic apparatus and controlling method thereof - Google Patents

Abstract

An electronic apparatus and control method are disclosed. The electronic apparatus includes a projection part, a camera and a processor. The processor controls the projection part to project an image including a data area and a dark area onto a projection surface, obtains an image corresponding to the projection area on which the image is projected through a camera, and controls the reduction of a difference between the color attribute of the surrounding of the projection area and the color attribute of the dark area projected on the projection surface based on color attribute information of the surrounding of the projection area obtained from the image and information of the dark area.

Description

Electronic device and control method {ELECTRONIC APPARATUS AND CONTROLLING METHOD THEREOF}

The present disclosure relates to an electronic device and a control method, and more particularly, to an electronic device and a control method for adjusting color attribute information of an image projected on a projection surface.

Recently, with the development of electronic technology and optical technology, various projectors are being used. A projector refers to an electronic device that projects light onto a screen (or a projection surface) to form an image on the screen. That is, the projector may project an image onto the screen, and the resolution ratio of the image projected onto the screen may vary.

For example, the resolution ratio of the image may be a standard ratio such as 16:9 or an irregular ratio other than 16:9. When the resolution of the image has an atypical ratio, a dark region may be included around the data region of the image. Also, the dark area of the image may be projected onto the screen. Since the dark area projected on the screen is recognized by the user as another area from the screen or the projection surface, it may interfere with the user's immersion in the content (data area) projected on the screen and cause a sense of difference.

However, since the current projector cannot control the dark area, there is a problem in that the dark area of the image is also projected onto the screen. Therefore, there is a need for a technique for eliminating a sense of difference for a user by adjusting a dark area that does not contain image data to be similar to an environment around a screen or a projection surface.

The present disclosure is intended to solve the above-described problems, and an object of the present disclosure is to control a dark region of an image to eliminate a sense of heterogeneity and to increase a user's sense of immersion in a data region of an image.

An electronic device according to an embodiment of the present disclosure includes a projection unit, a camera, and a processor, and the processor controls the projection unit to project an image including a data area and a dark area onto a projection surface, and displays the image through the camera. An image corresponding to the projection area on which the image is projected is obtained, and color properties around the projection area and the projection surface are calculated based on color property information around the projection area and color property information on the dark area obtained from the image. Control to reduce the difference in color properties of the projected dark area.

A control method of an electronic device according to an embodiment of the present disclosure includes projecting an image including a data area and a dark area onto a projection surface, acquiring an image corresponding to the projection area onto which the image is projected, and obtaining an image from the image. and reducing a difference between a color attribute around the projection area and a color attribute of the dark part projected on the projection surface based on the acquired color attribute information around the projection area and the color attribute information on the dark part.

In a non-transitory computer-readable storage medium in which a program for performing a control method of an electronic device according to an embodiment of the present disclosure is recorded, projecting an image including a data area and a dark area onto a projection surface, the projected image Acquiring an image corresponding to the projection area, and based on color attribute information around the projection area and color attribute information on the dark area obtained from the image, color properties around the projection area and the dark area projected on the projection surface. and reducing differences in color attributes of regions.

1 is a perspective view illustrating an external appearance of an electronic device according to an embodiment of the present disclosure.
2 is a block diagram illustrating a configuration of an electronic device according to an embodiment of the present disclosure.
3 is a perspective view illustrating an external appearance of an electronic device according to other embodiments of the present disclosure.
4 is a perspective view illustrating an external appearance of an electronic device according to another embodiment of the present disclosure.
5 is a perspective view illustrating an external appearance of an electronic device according to another embodiment of the present disclosure.
6A is a perspective view illustrating an external appearance of an electronic device according to another embodiment of the present disclosure.
6B is a perspective view illustrating a state in which the electronic device of FIG. 6A is rotated.
7 is a block diagram illustrating a configuration of an electronic device for adjusting a color attribute of an image projected on a projection surface according to an exemplary embodiment.
8 is a block diagram illustrating a specific configuration of an electronic device according to an embodiment of the present disclosure.
9 is a diagram illustrating a data area and a dark area of an image projected on a projection surface according to an embodiment of the present disclosure.
10 is a diagram for explaining an embodiment of adjusting color attributes of a dark region of an image projected on a projection surface.
11 is a diagram for explaining a specific embodiment of adjusting color attributes of a dark region of an image projected on a projection surface.
12 is a diagram illustrating an electronic device including a lighting unit according to an embodiment of the present disclosure.
13 is a diagram for explaining an embodiment of adjusting color attributes of a dark region of an image projected on a projection surface using a lighting unit.
14 is a diagram for explaining an embodiment of obtaining light information around a projection surface using an external device.
15 is a diagram for explaining an embodiment in which images projected from two electronic devices are projected onto one projection surface.
16 is a flowchart illustrating a control method of an electronic device according to an embodiment of the present disclosure.
17 is a diagram illustrating instructions stored in a computer readable recording medium according to an embodiment of the present disclosure.

Hereinafter, various embodiments will be described in more detail with reference to the accompanying drawings. The embodiments described in this specification may be modified in various ways. Particular embodiments may be depicted in the drawings and described in detail in the detailed description. However, specific embodiments disclosed in the accompanying drawings are only intended to facilitate understanding of various embodiments. Therefore, the technical idea is not limited by the specific embodiments disclosed in the accompanying drawings, and it should be understood to include all equivalents or substitutes included in the spirit and technical scope of the disclosure.

Terms including ordinal numbers, such as first and second, may be used to describe various components, but these components are not limited by the above terms. The terminology described above is only used for the purpose of distinguishing one component from another.

In this specification, terms such as "comprise" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded. It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Meanwhile, a “module” or “unit” for a component used in this specification performs at least one function or operation. Also, a “module” or “unit” may perform a function or operation by hardware, software, or a combination of hardware and software. In addition, a plurality of “modules” or “units” other than “modules” or “units” to be executed in specific hardware or to be executed in at least one processor may be integrated into at least one module. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In the description of the present disclosure, the order of each step should be understood as non-limiting, unless the preceding step must logically and temporally necessarily precede the succeeding step. In other words, except for the above exceptional cases, even if the process described as the later step is performed before the process described as the preceding step, the nature of the disclosure is not affected, and the scope of rights must also be defined regardless of the order of the steps. And, in this specification, "A or B" is defined to mean not only selectively indicating either one of A and B, but also including both A and B. In addition, in this specification, the term “including” has a meaning encompassing further including other components in addition to the elements listed as included.

Encryption/decryption may be applied to the information (data) transmission process performed in this specification, if necessary, and expressions describing the information (data) transmission process in this specification and claims are all encryption/decryption, even if not separately mentioned. It should be interpreted as including the case. In this specification, expressions such as "transmission (delivery) from A to B" or "A receiving from B" include transmission (transmission) or reception with another medium included in the middle, and must be transmitted from A to B. It does not represent only what is directly transmitted (delivered) or received.

In this specification, only essential components necessary for the description of the present disclosure are described, and components unrelated to the essence of the present disclosure are not mentioned. And it should not be interpreted as an exclusive meaning that includes only the mentioned components, but should be interpreted as a non-exclusive meaning that may include other components.

In addition, in describing the present disclosure, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present disclosure, the detailed description thereof will be abbreviated or omitted. Meanwhile, each embodiment may be implemented or operated independently, but each embodiment may be implemented or operated in combination.

1 is a perspective view illustrating an external appearance of an electronic device 100 according to an embodiment of the present disclosure.

Referring to FIG. 1 , the electronic device 100 may include a head 103, a body 105, a projection lens 111, a connector 109, or a cover 107.

The electronic device 100 may be a device of various types. In particular, the electronic device 100 may be a projector device that enlarges and projects an image onto a wall or a screen, and the projector device may be an LCD projector or a digital light processing (DLP) projector using a digital micromirror device (DMD). .

In addition, the electronic device 100 may be a home or industrial display device, or a lighting device used in daily life, a sound device including a sound module, a portable communication device (eg, a smartphone), It may be implemented as a computer device, a portable multimedia device, a wearable device, or a home appliance. Meanwhile, the electronic device 100 according to an embodiment of the present disclosure is not limited to the above-described devices, and the electronic device 100 may be implemented as an electronic device 100 having two or more functions of the above-described devices. For example, the electronic device 100 may be used as a display device, a lighting device, or a sound device by turning off a projector function and turning on a lighting function or a speaker function according to manipulation of a processor, and AI including a microphone or communication device. Can be used as a speaker.

The main body 105 is a housing forming an exterior, and may support or protect components (eg, the components shown in FIG. 2 ) of the electronic device 100 disposed inside the main body 105 . The body 105 may have a structure close to a cylindrical shape as shown in FIG. 1 . However, the shape of the main body 105 is not limited thereto, and according to various embodiments of the present disclosure, the main body 105 may be implemented in various geometric shapes such as a column, a cone, and a sphere having a polygonal cross section.

The size of the main body 105 may be a size that a user can hold or move with one hand, may be implemented in a very small size for easy portability, and may be implemented in a size that can be placed on a table or coupled to a lighting device.

The material of the main body 105 may be implemented with matte metal or synthetic resin so as not to be stained with user's fingerprints or dust, or the exterior of the main body 105 may be made of a smooth gloss.

A friction area may be formed on a portion of the exterior of the body 105 so that a user can grip and move the main body 105 . Alternatively, the main body 105 may be provided with a bent gripping portion or a support 108a (see FIG. 3 ) that the user can grip in at least a portion of the area.

The projection lens 111 is formed on one surface of the main body 105 to project light passing through the lens array to the outside of the main body 105 . The projection lens 111 of various embodiments may be an optical lens coated with low dispersion in order to reduce chromatic aberration. The projection lens 111 may be a convex lens or a condensing lens, and the projection lens 111 according to an embodiment may adjust the focus by adjusting the positions of a plurality of sub lenses.

The head 103 is provided to be coupled to one surface of the body 105 to support and protect the projection lens 111 . The head 103 may be coupled to the main body 105 so as to be swivelable within a predetermined angular range based on one surface of the main body 105 .

The head 103 is automatically or manually swiveled by a user or a processor to freely adjust the projection angle of the projection lens 111 . Alternatively, although not shown in the drawing, the head 103 is coupled to the main body 105 and includes a neck extending from the main body 105, so that the head 103 is tilted or tilted to adjust the projection angle of the projection lens 111. can be adjusted

The electronic device 100 can project light or an image to a desired location by adjusting the direction of the head 103 and adjusting the emission angle of the projection lens 111 while the position and angle of the main body 105 are fixed. have. In addition, the head 103 may include a handle that the user can grasp after rotating in a desired direction.

A plurality of openings may be formed on the outer circumferential surface of the main body 105 . Audio output from the audio output unit may be output to the outside of the main body 105 of the electronic device 100 through the plurality of openings. The audio output unit may include a speaker, and the speaker may be used for general purposes such as multimedia playback, recording playback, and audio output.

According to an embodiment of the present disclosure, a heat dissipation fan (not shown) may be provided inside the main body 105, and when the heat dissipation fan (not shown) is driven, air or heat inside the main body 105 passes through a plurality of openings. can emit. Therefore, the electronic device 100 can discharge heat generated by driving the electronic device 100 to the outside and prevent the electronic device 100 from overheating.

The connector 109 may connect the electronic device 100 to an external device to transmit/receive electrical signals or receive power from the outside. According to an embodiment of the present disclosure, the connector 109 may be physically connected to an external device. At this time, the connector 109 may include an input/output interface, and may communicate with an external device through wired or wireless communication or receive power. For example, the connector 109 may include an HDMI connection terminal, a USB connection terminal, an SD card receiving groove, an audio connection terminal, or a power outlet, or Bluetooth, Wi-Fi, or wireless connection to an external device wirelessly. A charging connection module may be included.

In addition, the connector 109 may have a socket structure connected to an external lighting device, and may be connected to a socket receiving groove of the external lighting device to receive power. The size and standard of the socket-structured connector 109 may be variously implemented in consideration of a receiving structure of a coupleable external device. For example, according to the international standard E26, the diameter of the junction of the connector 109 may be implemented as 26 mm, and in this case, the electronic device 100 replaces a conventionally used light bulb and uses an external lighting device such as a stand. can be coupled to Meanwhile, when fastened to a socket located on an existing ceiling, the electronic device 100 is projected from top to bottom, and when the electronic device 100 is not rotated by coupling the socket, the screen cannot be rotated either. Accordingly, the electronic device 100 is socket-coupled to the ceiling stand so that the electronic device 100 can rotate even when the socket is coupled and power is supplied, and the head 103 is moved from one side of the main body 105. It swivels and adjusts the emission angle to project the screen to a desired position or rotate the screen.

The connector 109 may include a coupling sensor, and the coupling sensor may sense whether or not the connector 109 is coupled with an external device, a coupling state, or a coupling target, and transmit the sensor to the processor, based on the received detection value. Driving of the electronic device 100 may be controlled.

The cover 107 can be coupled to and separated from the main body 105 and can protect the connector 109 so that the connector 109 is not constantly exposed to the outside. The shape of the cover 107 may have a shape continuous with the body 105 as shown in FIG. 1, or may be implemented to correspond to the shape of the connector 109. The cover 107 can support the electronic device 100, and the electronic device 100 can be used by being coupled to the cover 107 and coupled to or mounted on an external cradle.

In the electronic device 100 according to various embodiments, a battery may be provided inside the cover 107 . A battery may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell or a fuel cell.

Although not shown in the drawings, the electronic device 100 may include a camera module, and the camera module may capture still images and moving images. According to one embodiment, the camera module may include one or more lenses, image sensors, image signal processors, or flashes.

Although not shown in the drawings, the electronic device 100 may include a protective case (not shown) to protect the electronic device 100 and easily carry it, or a stand supporting or fixing the main body 105. (not shown), and may include a bracket (not shown) coupled to a wall or partition.

In addition, the electronic device 100 may provide various functions by being connected to various external devices using a socket structure. As an example, the electronic device 100 may be connected to an external camera device using a socket structure. The electronic device 100 may use the projection unit 110 to provide an image stored in a connected camera device or an image currently being captured. As another embodiment, the electronic device 100 may be connected to a battery module to receive power using a socket structure. Meanwhile, the electronic device 100 may be connected to an external device using a socket structure, but this is merely an example, and may be connected to an external device using another interface (eg, USB, etc.).

2 is a block diagram illustrating a configuration of an electronic device according to an embodiment of the present disclosure.

Referring to FIG. 2 , the electronic device 100 includes a projection unit 110, a processor 120, an input/output interface 130, a memory 140, a user interface 150, an audio output unit 160, and a power supply unit 170. ) may be included. Meanwhile, the configuration shown in FIG. 2 is just one embodiment, and some configurations may be omitted and new configurations may be added.

The projection unit 110 is a component that projects an image to the outside. According to an embodiment of the present disclosure, the projection unit 110 may use various projection methods (eg, a cathode-ray tube (CRT) method, a liquid crystal display (LCD) method, a digital light processing (DLP) method, and a laser method). etc.) can be implemented. As an example, the principle of the CRT method is basically the same as that of a CRT monitor. The CRT method enlarges the image with a lens in front of the cathode ray tube (CRT) and displays the image on the screen. Depending on the number of cathode ray tubes, it is divided into a 1-tube type and a 3-tube type, and in the case of a 3-tube type, red, green, and blue cathode ray tubes can be separately implemented.

As another example, the LCD method is a method of displaying an image by transmitting light from a light source through a liquid crystal. The LCD method is divided into a single-panel type and a three-panel type. In the case of the three-panel type, the light from the light source is separated into red, green, and blue by a dichroic mirror (a mirror that reflects only light of a specific color and passes the rest) and transmits the liquid crystal. After that, the light can gather in one place again.

As another example, the DLP method is a method of displaying an image using a DMD (Digital Micromirror Device) chip. The projection unit of the DLP method may include a light source, a color wheel, a DMD chip, a projection lens, and the like. Light output from a light source may exhibit a color while passing through a rotating color wheel. The light that passed through the color wheel is input to the DMD chip. The DMD chip includes numerous micromirrors and reflects light input to the DMD chip. The projection lens may play a role of enlarging light reflected from the DMD chip to an image size.

As another example, the laser method includes a diode pumped solid state (DPSS) laser and a galvanometer. For lasers that output various colors, three DPSS lasers are installed for each RGB color, and then lasers with optical axes overlapped using special mirrors are used. The galvanometer includes a mirror and a high power motor to move the mirror at high speed. For example, a galvanometer can rotate a mirror at up to 40 KHz/sec. The galvanometer is mounted according to the scanning direction. In general, since the projector scans in a plane, the galvanometer can also be arranged separately in the x and y axes.

Meanwhile, the projection unit 110 may include various types of light sources. For example, the projection unit 110 may include at least one light source among a lamp, LED, and laser.

The projection unit 110 may output an image in a 4:3 aspect ratio, a 5:4 aspect ratio, or a 16:9 wide aspect ratio according to the purpose of the electronic device 100 or the user's settings, and depending on the aspect ratio, WVGA (854*480 ), SVGA(800*600), XGA(1024*768), WXGA(1280*720), WXGA(1280*800), SXGA(1280*1024), UXGA(1600*1200), Full HD(1920*1080) ), etc., can output images at various resolutions.

Meanwhile, the projection unit 110 may perform various functions for adjusting an output image under the control of the processor 120 . For example, the projection unit 110 may perform functions such as zoom, keystone, quick corner (4 corner) keystone, and lens shift.

Specifically, the projection unit 110 may enlarge or reduce the image according to the distance from the screen (projection distance). That is, a zoom function may be performed according to the distance from the screen. In this case, the zoom function may include a hardware method of adjusting the screen size by moving a lens and a software method of adjusting the screen size by cropping an image. Meanwhile, when the zoom function is performed, the focus of the image needs to be adjusted. For example, methods for adjusting the focus include a manual focus method and a motorized method. The manual focus method refers to a method of manually focusing, and the motorized method refers to a method of automatically focusing using a motor built into the projector when a zoom function is performed. When performing the zoom function, the projection unit 110 may provide a digital zoom function through software, and may provide an optical zoom function that performs a zoom function by moving a lens through a driving unit.

Also, the projection unit 110 may perform a keystone function. If the height is not right for the front projection, the screen may be distorted up or down. The keystone function means a function of correcting a distorted screen. For example, if distortion occurs in the left and right directions of the screen, it can be corrected using the horizontal keystone, and if distortion occurs in the vertical direction, it can be corrected using the vertical keystone. The quick corner (4 corner) keystone function corrects the screen when the center area of the screen is normal but the corner area is not balanced. The lens shift function is a function that moves the screen as it is when the screen is out of the screen.

Meanwhile, the projection unit 110 may provide zoom/keystone/focus functions by automatically analyzing the surrounding environment and the projection environment without user input. Specifically, the projection unit 110 determines the distance between the screen and the electronic device 100 detected through sensors (depth camera, distance sensor, infrared sensor, illuminance sensor, etc.) and the space where the electronic device 100 is currently located. Zoom/Keystone/Focus functions can be automatically provided based on information about the image and the amount of ambient light.

Also, the projection unit 110 may provide a lighting function using a light source. In particular, the projection unit 110 may provide a lighting function by outputting a light source using LEDs. According to one embodiment, the projection unit 110 may include one LED, and according to another embodiment, the electronic device may include a plurality of LEDs. Meanwhile, the projection unit 110 may output a light source using a surface-emitting LED according to an implementation example. Here, the surface-emitting LED may refer to an LED having a structure in which an optical sheet is disposed above the LED so that light sources are uniformly distributed and output. Specifically, when the light source is output through the LED, the light source may be evenly dispersed through the optical sheet, and the light source dispersed through the optical sheet may be incident to the display panel.

Meanwhile, the projection unit 110 may provide a user with a dimming function for adjusting the intensity of the light source. Specifically, when a user input for adjusting the intensity of a light source is received from a user through the user interface 150 (eg, a touch display button or a dial), the projection unit 110 displays a light source corresponding to the received user input. It is possible to control the LED to output the intensity of.

Also, the projection unit 110 may provide a dimming function based on the content analyzed by the processor 120 without user input. In detail, the projection unit 110 may control the LED to output the intensity of the light source based on information about currently provided content (eg, content type, content brightness, etc.).

Meanwhile, the projection unit 110 may control the color temperature under the control of the processor 120 . Here, the processor 120 may control the color temperature based on content. Specifically, if the content is identified as being output, the processor 120 may obtain color information for each frame of the content for which output is determined. Also, the processor 120 may control the color temperature based on the obtained color information for each frame. Here, the processor 120 may obtain at least one main color of a frame based on color information for each frame. Also, the processor 120 may adjust the color temperature based on the acquired primary color. For example, the color temperature controllable by the processor 120 may be classified into a warm type or a cold type. Here, it is assumed that a frame to be output (hereinafter referred to as an output frame) includes a scene in which a fire has occurred. The processor 120 may identify (or obtain) that the main color is red based on color information included in the current output frame. Also, the processor 120 may identify a color temperature corresponding to the identified main color (red). Here, the color temperature corresponding to red may be a warm type. Meanwhile, the processor 120 may use an artificial intelligence model to obtain color information or a primary color of a frame. According to an embodiment, the artificial intelligence model may be stored in the electronic device 100 (eg, the memory 140). According to another embodiment, the artificial intelligence model may be stored in an external server capable of communicating with the electronic device 100. can be stored in

Meanwhile, the electronic device 100 may control a lighting function in conjunction with an external device. Specifically, the electronic device 100 may receive lighting information from an external device. Here, the lighting information may include at least one of brightness information and color temperature information set by an external device. Here, the external device is a device connected to the same network as the electronic device 100 (eg, an IoT device included in the same home/work network) or a device that is not on the same network as the electronic device 100 but can communicate with the electronic device ( For example, a remote control server). For example, it is assumed that an external lighting device (IoT device) included in the same network as the electronic device 100 outputs red light with a brightness of 50. The external lighting device (IoT device) may directly or indirectly transmit lighting information (eg, information indicating that red light is output with a brightness of 50) to the electronic device 100 . Here, the electronic device 100 may control the output of the light source based on lighting information received from an external lighting device. For example, when lighting information received from an external lighting device includes information for outputting red light with a brightness of 50, the electronic device 100 may output red light with a brightness of 50.

Meanwhile, the electronic device 100 may control a lighting function based on biometric information. Specifically, the processor 120 may obtain user's biometric information. Here, the biometric information may include at least one of the user's body temperature, heart rate, blood pressure, respiration, and electrocardiogram. Here, the biometric information may include various types of information in addition to the information described above. For example, an electronic device may include a sensor for measuring biometric information. The processor 120 may obtain user's biometric information through a sensor and control the output of a light source based on the obtained biometric information. As another example, the processor 120 may receive biometric information from an external device through the input/output interface 130 . Here, the external device may refer to a user's portable communication device (eg, a smart phone or a wearable device). The processor 120 may obtain user's biometric information from an external device and control the output of a light source based on the obtained biometric information. Meanwhile, according to an implementation example, the electronic device may identify whether the user is sleeping, and if the user is identified as sleeping (or preparing for sleep), the processor 120 determines the light source based on the user's biometric information. output can be controlled.

The memory 140 may store at least one command related to the electronic device 100 . Also, an operating system (O/S) for driving the electronic device 100 may be stored in the memory 140 . Also, various software programs or applications for operating the electronic device 100 may be stored in the memory 140 according to various embodiments of the present disclosure. In addition, the memory 220 may include a semiconductor memory such as a flash memory or a magnetic storage medium such as a hard disk.

Specifically, various software modules for operating the electronic device 100 may be stored in the memory 140 according to various embodiments of the present disclosure, and the processor 120 executes various software modules stored in the memory 140. Thus, the operation of the electronic device 100 may be controlled. That is, the memory 140 is accessed by the processor 120, and data can be read/written/modified/deleted/updated by the processor 120.

Meanwhile, in the present disclosure, the term memory 140 refers to the memory 140, a ROM (not shown) in the processor 120, a RAM (not shown), or a memory card (not shown) mounted in the electronic device 100 (eg For example, micro SD card, memory stick) may be used as a meaning including.

User interface 150 may include various types of input devices. For example, the user interface 150 may include physical buttons. In this case, the physical button may include a function key, a direction key (eg, a 4-direction key), or a dial button. According to one embodiment, the physical button may be implemented as a plurality of keys. According to another embodiment, the physical button may be implemented as one key. Here, when the physical button is implemented as one key, the electronic device 100 may receive a user input in which one key is pressed for a critical period of time or more. When a user input in which one key is pressed for a critical period of time or longer is received, the processor 120 may perform a function corresponding to the user input. For example, the processor 120 may provide a lighting function based on user input.

Also, the user interface 150 may receive a user input using a non-contact method. When user input is received through the contact method, physical force must be transmitted to the electronic device. Therefore, a method for controlling the electronic device regardless of physical force may be required. Specifically, the user interface 150 may receive a user gesture and perform an operation corresponding to the received user gesture. Here, the user interface 150 may receive a user's gesture through a sensor (eg, an image sensor or an infrared sensor).

Also, the user interface 150 may receive a user input using a touch method. For example, the user interface 150 may receive a user input through a touch sensor. According to an embodiment, the touch method may be implemented as a non-contact method. For example, the touch sensor may determine whether the user's body has approached within a critical distance. Here, the touch sensor may identify a user input even when the user does not contact the touch sensor. Meanwhile, according to another implementation example, the touch sensor may identify a user input in which a user contacts the touch sensor.

Meanwhile, the electronic device 100 may receive user input in various ways other than the above-described user interface. As an example, the electronic device 100 may receive a user input through an external remote control device. Here, the external remote control device may be a remote control device corresponding to the electronic device 100 (eg, an electronic device-specific control device) or a user's portable communication device (eg, a smartphone or a wearable device). Here, the user's portable communication device may store an application for controlling the electronic device. The portable communication device may obtain a user input through a stored application and transmit the acquired user input to the electronic device 100 . The electronic device 100 may receive a user input from a portable communication device and perform an operation corresponding to a user's control command.

Meanwhile, the electronic device 100 may receive a user input using voice recognition. According to an embodiment, the electronic device 100 may receive a user's voice through a microphone included in the electronic device. According to another embodiment, the electronic device 100 may receive a user's voice from a microphone or an external device. Specifically, the external device may acquire a user voice through a microphone of the external device and transmit the obtained user voice to the electronic device 100 . The user's voice transmitted from the external device may be audio data or digital data obtained by converting the audio data (eg, audio data converted into a frequency domain). Here, the electronic device 100 may perform an operation corresponding to the received user voice. Specifically, the electronic device 100 may receive audio data corresponding to a user's voice through a microphone. And, the electronic device 100 may convert the received audio data into digital data. In addition, the electronic device 100 may convert the converted digital data into text data using a speech to text (STT) function. According to one embodiment, the speech to text (STT) function may be performed directly in the electronic device 100, and according to another embodiment, the speech to text (STT) function may be performed in an external server. The electronic device 100 may transmit digital data to an external server. The external server may convert digital data into text data and obtain control command data based on the converted text data. The external server may transmit control command data (this time, text data may also be included) to the electronic device 100 . The electronic device 100 may perform an operation corresponding to the user's voice based on the obtained control command data.

Meanwhile, the electronic device 100 may provide a voice recognition function using one assistant (or artificial intelligence assistant, eg, Bixby™, etc.), but this is only an example and through a plurality of assistants. A voice recognition function may be provided. In this case, the electronic device 100 may provide a voice recognition function by selecting one of a plurality of assists based on a trigger word corresponding to the assist or a specific key present on the remote control.

Meanwhile, the electronic device 100 may receive a user input using screen interaction. Screen interaction may refer to a function of identifying whether a predetermined event occurs through an image projected on a screen (or a projection surface) by an electronic device and acquiring a user input based on the predetermined event. Here, the predetermined event may refer to an event in which a predetermined object is identified at a specific location (eg, a location where a UI for receiving a user input is projected). Here, the predetermined object may include at least one of a user's body part (eg, a finger), a pointing stick, and a laser point. When a predetermined object is identified at a location corresponding to the projected UI, the electronic device 100 may identify that a user input for selecting the projected UI has been received. For example, the electronic device 100 may project a guide image to display a UI on the screen. And, the electronic device 100 can identify whether the user selects the projected UI. Specifically, the electronic device 100 may identify that the user has selected the projected UI when a predetermined event is identified at the location of the projected UI. Here, the projected UI may include at least one or more items. Here, the electronic device 100 may perform spatial analysis to identify whether a predetermined event is located at the location of the projected UI. Here, the electronic device 100 may perform spatial analysis through a sensor (eg, an image sensor, an infrared sensor, a depth camera, a distance sensor, etc.). The electronic device 100 may identify whether a predetermined event occurs at a specific location (the location where the UI is projected) by performing spatial analysis. And, if it is identified that a predetermined event occurs at a specific location (the location where the UI is projected), the electronic device 100 may identify that a user input for selecting a UI corresponding to the specific location has been received.

The input/output interface 130 is a component for inputting/outputting at least one of an audio signal and a video signal. The input/output interface 130 may receive at least one of audio and video signals from an external device and output a control command to the external device.

Meanwhile, in an embodiment of the present disclosure, the input/output interface 130 includes HDMI (High Definition Multimedia Interface), MHL (Mobile High-Definition Link), USB (Universal Serial Bus), USB C-type, DP (Display Port), Thunderbolt, VGA (Video Graphics Array) port, RGB port, D-SUB (Dsubminiature) and DVI (Digital Visual Interface) may be implemented as at least one wired input/output interface. According to an embodiment, the wired input/output interface may be implemented as an interface for inputting/outputting only audio signals and an interface for inputting/outputting only video signals, or may be implemented as one interface for inputting/outputting both audio and video signals.

In addition, the electronic device 100 may receive data through a wired input/output interface, but this is merely an example, and power may be supplied through the wired input/output interface. For example, the electronic device 100 may receive power from an external battery through USB C-type or from an outlet through a power adapter. As another example, an electronic device may receive power from an external device (eg, a laptop computer or a monitor) through a DP.

Meanwhile, in an embodiment of the present disclosure, the input/output interface 130 is Wi-Fi, Wi-Fi Direct, Bluetooth, ZigBee, 3rd Generation (3G), 3rd Generation Partnership Project (3GPP), and Long Term Evolution (LTE) communication It may be implemented as a wireless input/output interface that performs communication using at least one of the communication methods. Depending on the implementation example, the wireless input/output interface may be implemented as an interface for inputting/outputting only audio signals and an interface for inputting/outputting only video signals, or may be implemented as one interface for inputting/outputting both audio and video signals.

Also, an audio signal may be input through a wired input/output interface, and a video signal may be input through a wireless input/output interface. Alternatively, an audio signal may be input through a wireless input/output interface and a video signal may be input through a wired input/output interface.

The audio output unit 160 is a component that outputs an audio signal. In particular, the audio output unit 160 may include an audio output mixer, an audio signal processor, and a sound output module. The audio output mixer may synthesize a plurality of audio signals to be output into at least one audio signal. For example, the audio output mixer may combine an analog audio signal and another analog audio signal (eg, an analog audio signal received from the outside) into at least one analog audio signal. The sound output module may include a speaker or an output terminal. According to an embodiment, the sound output module may include a plurality of speakers, and in this case, the sound output module may be disposed inside the main body, and the sound emitted by covering at least a part of the diaphragm of the sound output module may be emitted through a sound conduit ( waveguide) and can be transmitted to the outside of the main body. The sound output module includes a plurality of sound output units, and since the plurality of sound output units are symmetrically disposed on the exterior of the main body, sound can be emitted in all directions, that is, in all directions of 360 degrees.

The power supply unit 170 may receive power from the outside and supply power to various components of the electronic device 100 . The power supply unit 170 according to an embodiment of the present disclosure may receive power through various methods. As an example, the power supply unit 170 may receive power using the connector 109 shown in FIG. 1 . In addition, the power supply unit 170 may receive power using a 220V DC power cord. However, the present invention is not limited thereto, and the electronic device may receive power using a USB power cord or a wireless charging method.

In addition, the power supply unit 170 may receive power using an internal battery or an external battery. The power supply unit 170 according to an embodiment of the present disclosure may receive power through an internal battery. For example, the power supply unit 170 may charge power of an internal battery using at least one of a 220V DC power cord, a USB power cord, and a USB C-Type power cord, and may receive power through the charged internal battery. . In addition, the power supply unit 170 according to an embodiment of the present disclosure may receive power through an external battery. For example, when the electronic device and the external battery are connected through various wired communication methods such as a USB power cord, a USB C-Type power cord, and a socket home, the power supply unit 170 may receive power through the external battery. That is, the power supply unit 170 may directly receive power from an external battery, or may charge an internal battery through an external battery and receive power from the charged internal battery.

The power supply unit 170 according to the present disclosure may receive power using at least one of the plurality of power supply methods described above.

Meanwhile, with respect to power consumption, the electronic device 100 may have power consumption equal to or less than a preset value (eg, 43W) due to a socket type and other standards. In this case, the electronic device 100 may vary power consumption to reduce power consumption when using a battery. That is, the electronic device 100 may vary power consumption based on a power supply method and power usage.

Meanwhile, the electronic device 100 according to an embodiment of the present disclosure may provide various smart functions.

Specifically, the electronic device 100 is connected to a portable terminal device for controlling the electronic device 100, and a screen output from the electronic device 100 can be controlled through a user input input from the portable terminal device. For example, the mobile terminal device may be implemented as a smart phone including a touch display, and the electronic device 100 receives and outputs screen data provided by the mobile terminal device from the mobile terminal device, and inputs data from the mobile terminal device. A screen output from the electronic device 100 may be controlled according to a user input.

The electronic device 100 may share content or music provided by the portable terminal device by connecting to the portable terminal device through various communication methods such as Miracast, Airplay, wireless DEX, and Remote PC.

Also, the mobile terminal device and the electronic device 100 may be connected through various connection methods. As an embodiment, the portable terminal device may perform a wireless connection by searching for the electronic device 100 or the electronic device 100 may search for the portable terminal device and perform a wireless connection. And, the electronic device 100 may output content provided by the portable terminal device.

As an embodiment, when a predetermined gesture is detected through the display of the portable terminal device after placing the portable terminal device near the electronic device while specific content or music is being output (eg, motion tap view), the electronic device 100 may output content or music currently being output on the portable terminal device.

In an embodiment, while specific content or music is being output from the portable terminal device, the portable terminal device is brought closer to the electronic device 100 by a predetermined distance or less (eg, non-contact tap view), or the portable terminal device is close to the electronic device 100. When contact is made twice at a short interval (eg, contact tap view), the electronic device 100 may output content or music currently being output on the portable terminal device.

In the above-described embodiment, it has been described that the same screen as that provided by the portable terminal device is provided by the electronic device 100, but the present disclosure is not limited thereto. That is, when a connection is established between the portable terminal device and the electronic device 100, the portable terminal device outputs a first screen provided by the portable terminal device, and in the electronic device 100, the first screen is provided by a different portable terminal device. A second screen may be output. For example, the first screen may be a screen provided by a first application installed on the portable terminal device, and the second screen may be a screen provided by a second application installed on the portable terminal device. For example, the first screen and the second screen may be different screens provided by one application installed in the portable terminal device. Also, as an example, the first screen may be a screen including a remote control type UI for controlling the second screen.

The electronic device 100 according to the present disclosure may output a standby screen. For example, when the electronic device 100 is not connected to an external device or when there is no input received from the external device for a preset time, the electronic device 100 may output a standby screen. Conditions for the electronic device 100 to output the standby screen are not limited to the above examples, and the standby screen may be output under various conditions.

The electronic device 100 may output a standby screen in the form of a blue screen, but the present disclosure is not limited thereto. For example, the electronic device 100 may obtain an irregular object by extracting only the shape of a specific object from data received from an external device, and output an idle screen including the acquired irregular object.

3 is a perspective view illustrating an external appearance of an electronic device 100 according to other embodiments of the present disclosure.

Referring to FIG. 3 , the electronic device 100 may include a support (or referred to as a “handle”) 108a.

The support 108a of various embodiments may be a handle or a hook provided for a user to grip or move the electronic device 100, or the support 108a may be a main body ( 105) may be a stand supporting the.

As shown in FIG. 3, the support 108a may be coupled to or separated from the outer circumferential surface of the main body 105 in a hinge structure, and may be selectively separated and fixed from the outer circumferential surface of the main body 105 according to the user's needs. The number, shape, or arrangement of the supports 108a may be variously implemented without limitation. Although not shown in the drawing, the support 108a is built into the main body 105 and can be taken out and used by the user as needed, or the support 108a can be implemented as a separate accessory and detachable from the electronic device 100. have.

The support 108a may include a first support surface 108a-1 and a second support surface 108a-2. The first support surface 108a-1 may be a surface facing the outside of the body 105 in a state where the support 108a is separated from the outer circumferential surface of the body 105, and the second support surface 108a-2 is the support (108a) may be a surface facing the inner direction of the main body 105 in a state separated from the outer circumferential surface of the main body 105.

The first support surface 108a-1 is developed from the lower part of the body 105 to the upper part of the body 105 and may move away from the body 105, and the first support surface 108a-1 is flat or uniformly curved. can have a shape. The first support surface 108a-1 is the case where the electronic device 100 is mounted so that the outer surface of the body 105 touches the bottom surface, that is, when the projection lens 111 is disposed facing the front direction, the body ( 105) can be supported. In an embodiment including two or more supports 108a, the angle of emission of the head 103 and the projection lens 111 may be adjusted by adjusting the distance between the two supports 108a or the angle at which the hinge is opened.

The second support surface 108a-2 is a surface that comes into contact with the user or an external mounting structure when the support 108a is supported by the user or an external mounting structure, and prevents the user from slipping when the electronic device 100 is supported or moved. It may have a shape corresponding to the gripping structure of the hand or the external mounting structure. The user may direct the projection lens 111 toward the front, fix the head 103, hold the support 108a, move the electronic device 100, and use the electronic device 100 like a flashlight.

The support groove 104 is provided on the main body 105 and is a groove structure that can be accommodated when the support 108a is not in use, and as shown in FIG. It can be implemented as a home structure. Through the support groove 104, the support 108a can be stored on the outer circumferential surface of the main body 105 when the support 108a is not in use, and the outer circumferential surface of the main body 105 can be kept smooth.

Alternatively, the support 108a may have a structure in which the support 108a is stored inside the body 105 and the support 108a is pulled out of the body 105 in a situation where the support 108a is needed. In this case, the support groove 104 may have a structure drawn into the main body 105 to accommodate the support rod 108a, and the second support surface 108a-2 may be in close contact with the outer circumferential surface of the main body 105 or a separate support rod. A door (not shown) that opens and closes the groove 104 may be included.

Although not shown in the drawings, the electronic device 100 may include various types of accessories that help use or store the electronic device 100. For example, the electronic device 100 may include the electronic device 100 A protective case (not shown) may be included to protect and easily transport the electronic device 100 by being coupled to a tripod (not shown) or an external surface that supports or fixes the main body 105. Possible brackets (not shown) may be included.

4 is a perspective view illustrating an external appearance of an electronic device 100 according to another embodiment of the present disclosure.

Referring to FIG. 4 , the electronic device 100 may include a support (or referred to as a “handle”) 108b.

The support 108b of various embodiments may be a handle or a hook provided for a user to grip or move the electronic device 100, or the support 108b may be a main body ( 105) may be a stand that supports it so that it can be directed at an arbitrary angle.

Specifically, as shown in FIG. 4, the support 108b may be connected to the main body 105 at a predetermined point (eg, 2/3 to 3/4 of the height of the main body) of the main body 105. . When the support 108 is rotated in the direction of the main body, the main body 105 can be supported at an arbitrary angle in a state where the main body 105 is laid down in the lateral direction.

5 is a perspective view illustrating an external appearance of an electronic device 100 according to another embodiment of the present disclosure.

Referring to FIG. 5 , the electronic device 100 may include a support (or referred to as “support”) 108c. The support 108c of various embodiments includes a base plate 108c-1 provided to support the electronic device 100 on the ground and two support members 108c connecting the base plate 108-c and the main body 105. -2) may be included.

In one embodiment of the present disclosure, the two support members (108c-2) have the same height, so that one end surface of the two support members (108c-2) is provided on one outer circumferential surface of the main body 105 and the hinge member (108c). -3) can be combined or separated.

The two supporting members may be hingedly connected to the main body 105 at a predetermined point (eg, 1/3 to 2/4 of the height of the main body) of the main body 105 .

When the two support members and the main body are coupled by the hinge member 108c-3, the main body 105 is rotated with respect to a virtual horizontal axis formed by the two hinge members 108c-3, so that the projection lens 111 The emission angle of can be adjusted.

Although FIG. 5 shows an embodiment in which two support members 108c-2 are connected to the body 105, the present disclosure is not limited thereto, and one support member and the body as shown in FIGS. 6A and 6B ( 105) may be connected by one hinge member.

6A is a perspective view illustrating an external appearance of an electronic device 100 according to another embodiment of the present disclosure.

FIG. 6B is a perspective view illustrating a state in which the electronic device 100 of FIG. 6A is rotated.

Referring to FIGS. 6A and 6B, the support 108d of various embodiments includes a base plate 108d-1, a base plate 108-c, and a body 105 provided to support the electronic device 100 on the ground. It may include one support member (108d-2) connecting the.

Also, the end face of one support member 108d-2 may be coupled or separated by a groove provided on one outer circumferential surface of the body 105 and a hinge member (not shown).

When one support member (108d-2) and the main body 105 are coupled by one hinge member (not shown), as shown in FIG. 6B, based on a virtual horizontal axis formed by one hinge member (not shown) The body 105 can be rotated.

Meanwhile, the supports shown in FIGS. 3, 4, 5, 6A, and 6B are merely examples, and the electronic device 100 may have supports in various positions or shapes.

Hereinafter, an embodiment of adjusting color properties of an image projected on a projection surface will be described in detail.

7 is a block diagram illustrating a configuration of an electronic device for adjusting a color attribute of an image projected on a projection surface according to an exemplary embodiment.

Referring to FIG. 7 , the electronic device 100 includes a projection unit 110 , a processor 120 and a camera 180 .

The projection unit 110 may project an image of content received by the electronic device 100 onto a projection surface using light. Images may be of various resolution ratios. For example, the video may have a standard ratio such as 16:9, but may also have an irregular ratio other than 16:9. When the image has an atypical ratio, when the electronic device 100 projects the image onto the projection surface, dark areas (or letter boxes) may be formed on the upper, lower, left, and right sides of the image. That is, when the image has an atypical ratio and the electronic device 100 projects the image using light on the projection surface, the image may include a data area and a dark area. Alternatively, when the electronic device 100 is positioned distorted relative to the projection surface, the light irradiated onto the projection surface may not be square or rectangular, and thus the shape of the image projected onto the projection surface may not be square or rectangular. When the electronic device 100 is a projector, the projected image may be corrected to look square or rectangular through keystone correction, but since the irradiated light is still not square or rectangular, a dark area around the data area of the image may be corrected. can be formed Since the dark area around the data area of the image may be recognized as a different area from the surrounding area of the projection surface, it may interfere with the user's immersion in the image and cause a sense of difference. According to the present disclosure, by adjusting the color properties of the dark region to look similar to the surrounding region of the projection surface, it is possible to help immersion in the image and not to feel a sense of heterogeneity.

The camera 180 captures a projection area where an image is projected. For example, the camera 180 may include a CCD sensor or a CMOS sensor. Also, the camera 180 may include an RGB camera, a depth camera, and the like.

The processor 120 controls each component of the electronic device 100 . That is, the processor 120 may control the projection unit 110 to project an image onto the projection surface using light and control the camera 180 to photograph the projection area.

The processor 120 may control the camera 180 to acquire an image corresponding to a projection area where an image is projected. The processor 120 may identify a dark area excluding the data area in the projection area from the image. For example, an image in which the projection area is photographed may include a video. An image may include a data area and a dark area. The data area is an area including the contents of an actual image, and pixels of the data area may include various color attribute information. On the other hand, since the dark area is an area without data, it may include uniform color attribute information within a certain range. Therefore, as an embodiment, the processor 120 determines an area in which the distribution uniformity of each pixel value constituting the image corresponding to the projection area is equal to or greater than a threshold value as a dark area, and determines an area in which the distribution uniformity is less than the threshold value as a data area. can Alternatively, the processor 120 may divide the image into regions of a certain size and determine the dark region and the data region using average color attribute information of the divided regions.

The processor 120 may extract color attribute information around the projection area and color attribute information on the dark area, respectively, from the image. For example, color attribute information may include brightness, saturation, color, and transparency information. The processor 120 may compare color attribute information around the projection area and color attribute information around the dark area in the image. Also, the processor 120 may identify a dark region in the image corresponding to the dark region identified from the image. The dark region identified from the image may be a dark region identified from an image in which an image projected on a projection surface is photographed. Also, the dark area of the image may be a difference area between the light area and the data area when the electronic device 100 projects the image of the original content onto the projection surface using light.

The processor 120 may reduce a difference between a color attribute around the projection area and a color attribute of the dark region projected on the projection surface based on a difference between the color attribute information of the surroundings of the projection area and the color attribute information of the dark region. As an embodiment, the processor 120 may adjust the color attribute of the dark region projected on the projection surface so that a difference with the color attribute of the dark region projected on the projection surface is minimized. The meaning of reducing the difference in color properties of the dark area projected on the projection surface means that when the user sees the dark area projected on the projection surface, it is adjusted so that the projected dark area does not feel a difference from the surrounding area of the projection area. In other words, reducing the difference in color properties of the dark area projected on the projection surface means not only reducing the difference by adjusting the color properties of the original image itself, but also maintaining the color properties of the original image itself while projecting it on the projection surface. It may also include an example of adjusting the color properties visible to the viewer.

As an embodiment, the processor 120 may increase the transparency of the dark region of the identified image and project it onto the projection surface. When projecting an image onto the projection surface, the processor 120 may project the image onto the projection surface by increasing the transparency of the dark region of the image. In this case, the transparency of the dark region is increased so that the dark region may be almost invisible. Therefore, since the dark area projected on the projection surface is greatly influenced by the color properties of the surroundings of the projection area, the difference between the color properties around the projection area and the color properties of the dark area projected on the projection surface can be minimized.

Alternatively, the processor 120 may adjust the brightness, saturation, and color values of the dark region of the identified image so that a difference between each color attribute information is reduced. In this case, since the color attribute of the dark region projected on the projection surface can be similar to the color attribute of the surroundings of the projection region, the difference between the color attribute of the surroundings of the projection area and the color attribute of the dark region projected on the projection surface can be minimized. .

8 is a block diagram illustrating a specific configuration of an electronic device according to an embodiment of the present disclosure.

Referring to FIG. 8 , the electronic device 100 includes a projection unit 110, a processor 120, a camera 180, a memory 140, an input/output interface 130, a lighting unit 190, and a sensor 195. Since the projection unit 110 and the camera 180 perform the same functions as those of the projection unit 110 and the camera 180 of FIG. 7 , detailed descriptions thereof are omitted. Also, since the processor 120 performs functions similar to those of the processor 120 of FIG. 7 , functions with differences will be mainly described.

The memory 140 may store data and algorithms for performing functions of the electronic device 100, and may store programs and commands operated by the electronic device 100. The memory 140 may store an algorithm for identifying a color attribute around the projection area and a color attribute of a dark region projected on the projection surface, and reducing the difference. The algorithm stored in the memory 140 may be loaded into the processor 120 under the control of the processor 120 to perform a process of identifying color attributes and reducing difference values. For example, the memory 140 may be implemented as a type of ROM, RAM, HDD, SSD, memory card, or the like.

The input/output interface 130 may be implemented as a wireless input/output interface. Also, the input/output interface 130 may receive data from an external device and transmit a control command under the control of the processor 120 . For example, the input/output interface 130 implemented as a wireless input/output interface is 3G, LTE (Long Term Evolution), 5G, Wi-Fi, Wi-Fi Direct, Bluetooth, DMB (Digital Multimedia Broadcasting), ATSC (Advanced Television Systems Committee), digital video broadcasting (DVB), local area network (LAN), Zigbee, beacon, infrared communication, and the like. A wireless input/output interface that communicates with an external device may also be called a wireless input/output unit, a wireless input/output module, a communication unit, a communication module, a transceiver, and the like.

The lighting unit 190 may radiate light to the projection area. For example, the processor 120 may control the projection unit 110 to project an image onto a projection surface. The processor 120 may identify light attribute information that reduces a difference between color attribute information of the periphery of the projection area and color attribute information of the dark area. Then, the processor 120 radiates light corresponding to the identified light property information to the dark area projected on the projection surface to reduce the difference between the color properties of the surroundings of the projection area and the color properties of the dark area projected on the projection surface. The lighting unit 190 may be controlled. The lighting unit 190 radiates light corresponding to the light property information identified under the control of the processor 120 to the dark area projected on the projection surface, thereby determining the color properties around the projection area and the color properties of the dark area projected on the projection surface. The difference can be minimal.

The sensor 195 may detect a state around the electronic device 100 . Based on the detected signal, the processor 120 acquires color (or light) attribute information around the projection area, color attribute information on the projected image, and the like, and acquires the color attribute around the projection area and the image projected on the projection surface. It is possible to reduce the difference in color properties of the dark area of . In addition, the sensor 195 may obtain information such as the movement of the electronic device 100, the distance from the projection surface, and the angle. For example, sensors 195 may include an accelerometer sensor, a gravity sensor, a gyro sensor, a geomagnetic sensor, an orientation sensor, a motion recognition sensor, a proximity sensor, an ambient light sensor, a thermal sensor, a touch sensor, an infrared sensor, an ultrasonic sensor, and the like. can

The electronic device 100 may include all of the above-described components, or may include some components. In addition, the electronic device 100 may further include other components that perform various functions in addition to the components described above.

The configuration of the electronic device 100 has been described so far. Hereinafter, a specific embodiment of reducing a difference between color attributes around the projection area and color attributes of a dark area projected on the projection surface will be described.

9 is a diagram illustrating a data area and a dark area of an image projected on a projection surface according to an embodiment of the present disclosure, and FIG. 10 is an embodiment of adjusting color attributes of a dark area of an image projected on a projection surface. FIG. 11 is a diagram for explaining a specific embodiment of adjusting a color attribute of a dark region of an image projected on a projection surface. This will be described with reference to FIGS. 9 to 11 .

Referring to FIG. 9 , an image projected on the projection surface 10 is shown. As described above, when an image has an atypical resolution ratio or an electronic device is positioned off the vertical axis of the projection surface 10, the image may include a data area 21 and dark areas 22 and 23. 9 shows an example in which dark areas 22 and 23 are formed on the left and right sides of the data area 21 , however, the dark areas may be formed in any of the top, bottom, left, and right areas of the data area 21 . Since the dark regions 22 and 23 are regions to which light is irradiated from the electronic device, they may have different color properties from those around the projection region. Therefore, since the dark areas 22 and 23 are distinguished from the surroundings of the data area 21 and the projection area, the user may feel a sense of difference and may be disturbed in content immersion.

The electronic device may obtain a captured image in which a projection area including an image is captured. The electronic device may identify a dark area excluding the data area of the image within the projection area from the photographed image.

The electronic device may extract color attribute information around the projection area and color attribute information on the dark area, respectively, from the photographed image. For example, color attribute information may include brightness, saturation, color, and transparency information. The electronic device may compare color attribute information around the projection area and color attribute information around the dark area in the photographed image. Also, the electronic device may identify a dark region of the image corresponding to the identified dark region from the photographed image. The electronic device may reduce a difference between a color attribute around the projection area and a color attribute of the dark area projected on the projection surface based on a difference between color attribute information around the projection area and color attribute information on the dark area. The meaning of reducing the difference in color properties of the dark area projected on the projection surface means that when the user sees the dark area projected on the projection surface, it is adjusted so that the projected dark area does not feel a difference from the surrounding area of the projection area. That is, as shown in FIG. 10 , the difference between the color properties of the dark areas 22 and 23 of the image and the color properties around the projection area may be minimal, and the user may not recognize the dark areas 22 and 23 . I can't.

Referring to FIG. 11 , an image in which a dark region is divided into a plurality of regions is shown. The image shown in FIG. 11 may be an image of original content received by the electronic device. The electronic device may divide the dark area into a plurality of areas 22-1 to 22-4 and 23-1 to 23-4 and adjust color attributes for each area. For example, the upper regions 22-1 and 23-1 of the dark region may have different color properties from the lower regions 22-4 and 23-4. Alternatively, the color attributes of the left regions 22-1 to 22-4 and the right regions 23-1 to 23-4 of the dark region may be different. Accordingly, the electronic device may divide the dark area into a plurality of areas and adjust color attribute values corresponding to the respective areas.

12 is a diagram illustrating an electronic device including a lighting unit according to an embodiment of the present disclosure.

Referring to FIG. 12 , a perspective view of the electronic device 100 described above is shown. The electronic device may further include a lighting unit 190 disposed around the projection lens 111 that projects an image. The lighting unit 190 may include a plurality of lighting modules. For example, the lighting modules may be arranged circularly around the projection lens 111, and may be symmetrically arranged up, down, left and right. The lighting module may include LEDs, lasers, and the like. The electronic device may use the lighting unit 190 to reduce a difference between color attributes around the projection area and color attributes of a dark area projected on the projection surface.

13 is a diagram for explaining an embodiment of adjusting a color attribute of a dark region of an image projected on a projection surface using a lighting unit.

Referring to FIG. 13 , the electronic device may project an image including a data area and dark areas 22 and 23 onto the projection surface 10 . The electronic device may identify a dark area excluding the data area within the projection area, and extract color attribute information around the projection area and color attribute information of the dark area, respectively. The electronic device may identify light attribute information that reduces a difference between color attribute information of the periphery of the projection area and color attribute information of the dark area. The electronic device may radiate light corresponding to the identified light attribute information to the dark region projected on the projection surface to reduce a difference between color attributes around the projection region and color attributes of the dark region projected on the projection surface.

For example, the electronic device may radiate light corresponding to the identified light property to the left dark region 22 using the illumination module 191 located on the left side of the projection lens 111 . Alternatively, the electronic device may use the lighting module 192 located on the right side of the projection lens 111 to radiate light corresponding to the identified light property to the right dark region 23 . Since the light corresponding to the identified light property is the light that minimizes the difference between the color property of the surroundings of the projection area and the color property of the dark area projected on the projection surface, the user cannot recognize the dark area 22, 23 of the image. can

Meanwhile, the electronic device may receive color (light) attribute information around the projection area from an external device around the projection area.

14 is a diagram for explaining an embodiment of obtaining light information around a projection surface using an external device.

Referring to FIG. 14 , an external device 800 may be positioned around the projection surface 10 . For example, the external device 800 may be a lighting device. When the external device 800 is a lighting device, the external device 800 may radiate light around the projection surface 10 . The dark regions 22 and 23 of the image projected on the projection surface 10 by light from the external device 800 may have different color properties.

The electronic device 100 may receive light property information from the external device 800 . Also, the electronic device 100 may capture an image projected on the projection surface 10 . The electronic device may obtain color (light) attribute information around the projection area and color (light) attribute information of the dark areas 22 and 23 projected on the projection surface 10 by using the photographed image. The electronic device 100 receives the light property information received from the external device 800, the color (light) property information around the projection area obtained from the captured image, and the projected on the projection surface 10. Color (light) attribute information around the projection area and color (light) attribute information of the dark regions 22 and 23 may be calculated using the color (light) attribute information of the dark regions 22 and 23 . For example, the color (light) attribute information may include brightness (illuminance) information. In general, lightness (illuminance) tends to be inversely proportional to the square of the distance from the light source. Accordingly, the electronic device may calculate color (light) attribute information around the projection area and color (light) attribute information of the dark areas 22 and 23 according to the distance using the acquired information. Also, the electronic device may adjust the color attribute of the dark region of the image based on the calculated color (light) attribute information. Alternatively, the electronic device may identify a light property of a corresponding lighting unit based on the calculated color (light) property information, and may radiate light to the dark portion regions 22 and 23 based on the identified light property.

15 is a diagram for explaining an embodiment in which images projected from two electronic devices are projected onto one projection surface.

Referring to FIG. 15 , two electronic devices 100-1 and 100-2 are shown. The two electronic devices 100 - 1 and 100 - 2 project respective images 30 - 1 and 30 - 2 onto one projection surface 10 . The respective images 30-1 and 30-2 projected from the two electronic devices 100-1 and 100-2 may be similar images having different color properties or may be different images.

The two electronic devices 100-1 and 100-2 project respective images 30-1 and 30-2 onto the same projection surface 10, so that users can enjoy images with new effects. For example, when the two electronic devices 100-1 and 100-2 project similar images having different color properties on the same projection surface 10 slightly out of alignment, the user may enjoy the 3D image using sunglasses or the like. possible effect can be obtained. Alternatively, as two similar images 30-1 and 30-2 having different color information are synthesized, the user can enjoy an image including various colors.

In order for the two images 30-1 and 30-2 to be recognized by the user, it is necessary to adjust the color properties of the two images. For example, the two electronic devices 100-1 and 100-2 adjust the transparency of the respective images 30-1 and 30-2 so that both images 30-1 and 30-2 are displayed to the user. can be appropriately recognized.

So far, various embodiments of an electronic device for adjusting color properties have been described. A control method of the electronic device will be described below.

16 is a flowchart illustrating a control method of an electronic device according to an embodiment of the present disclosure.

Referring to FIG. 16 , the electronic device projects an image including a data area and a dark area onto a projection surface (S1610), and obtains an image corresponding to the projection area onto which the image is projected (S1620).

The electronic device reduces the difference between the color attribute around the projection area and the color attribute of the dark area projected on the projection surface based on the color attribute information around the projection area and the color attribute information on the dark area acquired from the acquired image (S1630). ).

For example, the electronic device may identify a dark area excluding the data area within the projection area from the acquired image. The electronic device may determine an area in which the distribution uniformity of each pixel value constituting the captured image is greater than or equal to a threshold value as a dark area, and determine an area in which the distribution uniformity is less than the threshold value as a data area.

The electronic device may extract color attribute information around the projection area and color attribute information on the dark area, respectively, from the photographed image. For example, the color attribute information may include brightness, saturation, color, and transparency.

The electronic device may reduce a difference between a color attribute around the projection area and a color attribute of the dark area projected on the projection surface based on a difference between color attribute information around the projection area and color attribute information on the dark area. For example, the electronic device may identify a dark region of an image corresponding to a dark region identified from a photographed image. The electronic device may adjust a color attribute of the dark region of the identified image to reduce a difference between a color attribute around the projection area and a color attribute of the dark region projected on the projection surface. Alternatively, the electronic device may project the image onto the projection surface by increasing the transparency of the dark region of the identified image. Alternatively, the electronic device may compare color attribute information of the periphery of the projection area and color attribute information of the dark area, respectively. And, based on the comparison result, the electronic device may adjust the brightness, saturation, and color values of the dark region of the identified image so that a difference between each color attribute information is reduced. Alternatively, the electronic device may identify light attribute information that reduces a difference between color attribute information of the periphery of the projection area and color attribute information of the dark area. The electronic device may radiate light corresponding to the identified light attribute information to the projected dark region by using the lighting unit to reduce a difference between color attributes around the projection region and color attributes of the dark region projected on the projection surface.

17 is a diagram illustrating instructions stored in a computer readable recording medium according to an embodiment of the present disclosure.

The method for controlling an electronic device according to various embodiments described above may be provided as a computer program product. The computer program product may include a S/W program itself or a non-transitory computer readable medium in which the S/W program is stored.

For example, in the computer readable storage medium 1700, an image including a data area and a dark area is projected onto a projection surface (1710), and an image corresponding to the projection area on which the image is projected is obtained (1720). In step 1750, the difference between the color attribute around the projection area and the color attribute of the dark region projected on the projection surface is reduced based on the color attribute information around the projection region and the color attribute information on the dark region obtained from the image. program can be saved.

A non-transitory readable medium is not a medium that stores data for a short moment, such as a register, cache, or memory, but a medium that stores data semi-permanently and can be read by a device. Specifically, the various applications or programs described above may be stored and provided in non-transitory readable media such as CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

In addition, although the preferred embodiments of the present disclosure have been shown and described above, the present disclosure is not limited to the specific embodiments described above, and the technical field to which the disclosure belongs without departing from the subject matter of the present disclosure claimed in the claims. Of course, various modifications are possible by those skilled in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present disclosure.

100: electronic device 110: projection unit
120: processor 180: camera

Claims (15)

projection unit;
camera; and
Including; processor;
the processor,
Controlling the projection unit to project an image including a data area and a dark area onto a projection surface, and acquiring an image corresponding to the projection area onto which the image is projected through the camera;
Control to reduce the difference between the color attribute around the projection area and the color attribute of the dark part projected on the projection surface based on the color attribute information around the projection area and the color attribute information on the dark part obtained from the image. to do, electronic devices. According to claim 1,
the processor,
The electronic device of claim 1 , wherein an area in which the distribution uniformity of each pixel value constituting the image is greater than or equal to a threshold value is determined as the dark area, and an area in which the distribution uniformity is less than the threshold value is determined as a data area. According to claim 1,
the processor,
A dark region of the image corresponding to the dark region identified from the image is identified, and color properties of the identified dark region of the image are adjusted to determine the color properties around the projection region and the color of the dark region projected on the projection surface. An electronic device that controls to reduce differences in attributes. According to claim 3,
The color attribute information includes transparency,
the processor,
An electronic device that projects the image onto the projection surface by increasing the transparency of a dark region of the image. According to claim 3,
The color attribute information includes brightness, saturation, and color information,
the processor,
An electronic device that compares the color attribute information around the projection area and the color attribute information of the dark area to adjust the brightness, saturation, and color values of the dark area of the image so that a difference between each color attribute information is reduced. . According to claim 1,
An electronic device further comprising a lighting unit disposed around the projection unit. According to claim 6,
the processor,
Identify light attribute information that reduces the difference between the color attribute information around the projection area and the color attribute information of the dark region, and determine the difference between the color attribute around the projection area and the color attribute of the dark region projected on the projection surface. and controlling the lighting unit to project light corresponding to the identified light attribute information to the projected dark area to reduce light. projecting an image including a data area and a dark area onto a projection surface;
obtaining an image corresponding to a projection area where the image is projected; and
reducing a difference between a color attribute around the projection area and a color attribute of the dark region projected on the projection surface based on color attribute information around the projection area and color attribute information on the dark region obtained from the image; Control method of an electronic device comprising a. According to claim 8,
The step of identifying the dark part region,
The control method of the electronic device of claim 1 , further comprising determining an area in which the distribution uniformity of each pixel value constituting the image is greater than or equal to a threshold value is the dark region, and determining an area in which the distribution uniformity is less than the threshold value is a data region. According to claim 8,
The step of reducing the difference in color properties,
A dark region of the image corresponding to the dark region identified from the image is identified, and color properties of the identified dark region of the image are adjusted to determine the color properties around the projection region and the color of the dark region projected on the projection surface. A control method of an electronic device that reduces differences in attributes. According to claim 10,
The color attribute information includes transparency,
The step of reducing the difference in color properties,
A method of controlling an electronic device, wherein the transparency of a dark region of the image is increased and the image is projected onto the projection surface. According to claim 10,
The color attribute information includes brightness, saturation, and color information,
The step of reducing the difference in color properties,
An electronic device that compares the color attribute information around the projection area and the color attribute information of the dark area to adjust the brightness, saturation, and color values of the dark area of the image so that a difference between each color attribute information is reduced. control method. According to claim 8,
The step of reducing the difference in color properties,
Identify light attribute information that reduces the difference between the color attribute information around the projection area and the color attribute information of the dark region, and determine the difference between the color attribute around the projection area and the color attribute of the dark region projected on the projection surface. and projecting the light corresponding to the identified light attribute information to the projected dark portion area so as to reduce the control of the electronic device. projecting an image including a data area and a dark area onto a projection surface;
obtaining an image corresponding to a projection area where the image is projected; and
reducing a difference between a color attribute around the projection area and a color attribute of the dark region projected on the projection surface based on color attribute information around the projection area and color attribute information on the dark region obtained from the image; A non-transitory computer-readable storage medium in which a program for performing a control method of an electronic device including a program is recorded. According to claim 14,
The step of reducing the difference in color properties,
A dark region of the image corresponding to the dark region identified from the image is identified, and color properties of the identified dark region of the image are adjusted to determine the color properties around the projection region and the color of the dark region projected on the projection surface. A non-transitory computer-readable storage medium in which a program for performing a control method of an electronic device for reducing a difference in attributes is recorded.

Images