WO2022234942A1

WO2022234942A1 - Electronic apparatus and control method therefor

Info

Publication number: WO2022234942A1
Application number: PCT/KR2022/003430
Authority: WO
Inventors: 정승연; 노민구
Original assignee: 삼성전자주식회사
Priority date: 2021-05-07
Filing date: 2022-03-11
Publication date: 2022-11-10

Abstract

Disclosed are an electronic apparatus and a control method therefor. The electronic apparatus comprises a projection unit, a camera, and a processor, wherein the processor: controls the projection unit to project an image including a data area and a dark area onto a projection surface; obtains, through the camera, an image corresponding to a projection area onto which the image is projected; and controls to reduce a difference between a color property around the projection area and a color property of the dark area projected onto the projection surface, on the basis of color property information around the projection area and color property information about the dark area, which are obtained from the image.

Description

Electronics and Control Methods

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 and optical technologies, 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 on the screen, and the ratio of the resolution of the image projected on the screen may vary.

For example, the ratio of the resolution of the image may be a standard ratio such as 16:9, or may be an atypical 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. In addition, the dark region of the image may be projected on the screen. Since the dark area projected on the screen is perceived by the user as a different area from the screen or projection surface, it may interfere with the user's immersion in the content (data area) projected on the screen and cause a sense of heterogeneity.

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 on the screen. Accordingly, there is a need for a technique for resolving a sense of heterogeneity to a user by adjusting a dark area not including image data to be similar to the environment around the screen or projection surface.

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

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

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

Projecting an image including a data area and a dark area onto a projection surface 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; Acquiring an image corresponding to the projection region and the color attribute around the projection region and the dark portion projected on the projection surface based on the color attribute information around the projection region and color attribute information of the dark region obtained from the image reducing differences in the color properties of the regions.

1 is a perspective view illustrating an 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 appearance of an electronic device according to other embodiments of the present disclosure;

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

5 is a perspective view illustrating an appearance of an electronic device according to still another exemplary embodiment of the present disclosure;

6A is a perspective view illustrating an appearance of an electronic device according to still another exemplary 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 according to an embodiment for adjusting color properties of an image projected on a projection surface.

8 is a block diagram illustrating a detailed 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 view for explaining an embodiment of adjusting a color property of a dark region of an image projected on a projection surface.

11 is a view for explaining a specific embodiment of adjusting a color property of a dark region of an image projected on a projection surface.

12 is a view for explaining an electronic device including a lighting unit according to an embodiment of the present disclosure.

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

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

15 is a view for explaining an embodiment of projecting images projected from two electronic devices on one projection surface.

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

17 is a diagram for explaining 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 herein may be variously modified. Certain embodiments may be depicted in the drawings and described in detail in the detailed description. However, the specific embodiments disclosed in the accompanying drawings are only provided to facilitate understanding of the various embodiments. Therefore, the technical spirit 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 scope of the disclosure.

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

In the present specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof. When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

Meanwhile, as used herein, a “module” or “unit” for a component performs at least one function or operation. In addition, 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 a plurality of “units” other than a “module” or “unit” that must be performed in specific hardware or are executed in at least one processor may be integrated into at least one module. The singular expression includes the plural expression 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 be logically and temporally performed before the subsequent step. That is, except for the above exceptional cases, even if the process described as the subsequent step is performed before the process described as the preceding step, the essence of the disclosure is not affected, and the scope of rights should also be defined regardless of the order of the steps. And, in the present specification, "A or B" is defined as meaning not only selectively pointing to any one of A and B, but also including both A and B. In addition, in the present specification, the term "comprising" has the meaning of encompassing the inclusion of other components in addition to the elements listed as being included.

Encryption/decryption may be applied to the information (data) transmission process performed in the present specification as needed, and the expressions describing the information (data) transmission process in the present specification and claims are all encrypted/decrypted, even if not separately mentioned. It should be construed as including cases. In this specification, expressions such as "transfer from A to B (transfer)" or "A receives from B" include transmission (transmission) or reception with another medium included in the middle, and must be from A to B. It does not represent only direct transmission (delivery) or reception.

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

In addition, in describing the present disclosure, when 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 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 for projecting an enlarged image onto a wall or a screen, and the projector device may be an LCD projector or a digital light processing (DLP) type projector using a digital micromirror device (DMD). .

In addition, the electronic device 100 may be a home or industrial display device, or may be a lighting device used in daily life, may be an acoustic device including an acoustic 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 device. Meanwhile, the electronic device 100 according to an embodiment of the present disclosure is not limited to the above-described device, and the electronic device 100 may be implemented as the electronic device 100 having two or more functions of the above-described devices. For example, in the electronic device 100, the projector function is turned off according to the operation of the processor and the lighting function or the speaker function is turned on to be utilized as a display device, a lighting device, or a sound device, and AI including a microphone or a communication device It can be used as a speaker.

The main body 105 is a housing forming an exterior, and may support or protect components (eg, the configuration shown in FIG. 2 ) of the electronic device 100 disposed inside the main body 105 . The shape of the body 105 may have a structure close to a cylindrical shape as shown in FIG. 1 . However, the shape of the body 105 is not limited thereto, and according to various embodiments of the present disclosure, the 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, and may be implemented in a compact size for easy portability, and may be implemented in a size that can be mounted on a table or coupled to a lighting device.

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

The body 105 may have a friction area formed in a portion of the exterior of the body 105 so that the user can grip and move it. Alternatively, the body 105 may be provided with a bent gripper or supporter 108a (refer to FIG. 3 ) that can be gripped by a user in at least a partial region.

The projection lens 111 is formed on one surface of the body 105 to project the light passing through the lens array to the outside of the 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 exemplary embodiment may adjust a focus by adjusting positions of a plurality of sub-lenses.

The head 103 may be 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 body 105 so as to be swivelable in a preset angle range with respect to one surface of the body 105 .

The head 103 may be swiveled automatically or manually by a user or a processor to freely adjust the projection angle of the projection lens 111 . Alternatively, although not shown in the drawings, the head 103 is coupled to the body 105 and includes a neck extending from the 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 position by adjusting the direction of the head 103 while the position and angle of the main body 105 are fixed and adjusting the exit angle of the projection lens 111 . have. In addition, the head 103 may include a handle that the user can hold after rotating in a desired direction.

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

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

The connector 109 may connect the electronic device 100 to an external device to transmit/receive electrical signals or may receive power from the outside. According to an embodiment of the present disclosure, the connector 109 may be physically connected to an external device. In this case, the connector 109 may include an input/output interface, and may connect communication with an external device or receive power by wire or wirelessly. 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. It may include a charging connection module.

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 connector 109 having a socket structure may be implemented in various ways in consideration of a structure for accommodating a coupleable external device. For example, according to the international standard E26, the diameter of the joint portion of the connector 109 may be implemented as 26 mm. In this case, the electronic device 100 replaces a conventionally used light bulb and an external lighting device such as a stand. can be coupled to On the other hand, when fastened to a socket located on an existing ceiling, the electronic device 100 is projected from top to bottom. Accordingly, the electronic device 100 is socket-coupled to a stand on the ceiling so that the electronic device 100 can be rotated even when power is supplied due to the socket coupling. It swivels, and by adjusting the output angle, the screen can be output to a desired position or the screen can be rotated.

The connector 109 may include a coupling sensor, and the coupling sensor may sense whether the connector 109 and an external device are coupled, a coupling state, or a coupling target and transmit it to the processor, and the processor based on the received detection value. Driving of the electronic device 100 may be controlled.

The cover 107 may be coupled to and separated from the body 105 , and may protect the connector 109 so that the connector 109 is not always 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 may support the electronic device 100 , and the electronic device 100 may be coupled to the cover 107 to be coupled to or mounted on an external cradle.

In the electronic device 100 of 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 an embodiment, the camera module may include one or more lenses, an image sensor, an image signal processor, or a flash.

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 transport it, or a stand for supporting or fixing the main body 105 . (not shown), it may include a bracket (not shown) that can be coupled to the 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 embodiment, the electronic device 100 may be connected to an external camera device using a socket structure. The electronic device 100 may provide an image stored in a connected camera device or an image currently being captured using the projection unit 110 . In another embodiment, the electronic device 100 may be connected to the battery module to receive power by using a socket structure. Meanwhile, the electronic device 100 may be connected to an external device using a socket structure, but this is only an example and may be connected to an external device using another interface (eg, USB, etc.).

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 illustrated in FIG. 2 is only an exemplary embodiment, and some configurations may be omitted and new configurations may be added.

The projection unit 110 is configured to project an image to the outside. According to an embodiment of the present disclosure, the projection unit 110 includes various projection methods (eg, cathode-ray tube (CRT) method, liquid crystal display (LCD) method, digital light processing (DLP) method, laser method). etc.) can be implemented. For example, the CRT method is basically the same as that of the CRT monitor. In the CRT method, an image is displayed on the screen by magnifying the image with a lens in front of a cathode-ray tube (CRT). According to the number of CRTs, it is divided into a single tube type and a three tube type. In the case of the three tube type, red, green, and blue CRTs 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. LCD system is divided into single plate type and three plate type. After that, the light can gather to one place again.

As another example, the DLP method is a method of displaying an image using a digital micromirror device (DMD) chip. The DLP projection unit may include a light source, a color wheel, a DMD chip, a projection lens, and the like. The light output from the light source can take on a color as it passes through the rotating color wheel. The light passing through the color wheel is input to the DMD chip. The DMD chip includes numerous micromirrors and reflects the light input to the DMD chip. The projection lens may serve to enlarge the reflected light from the DMD chip to the size of an image.

As another example, the laser method includes a diode pumped solid state (DPSS) laser and a galvanometer. For the laser that outputs various colors, three DPSS lasers are installed for each RGB color, and then the laser with the optical axes overlapped using a special mirror is 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 scan direction, and since the projector generally scans in a plane, the galvanometer can also be divided into 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, an LED, and a laser.

The projection unit 110 may output an image in 4:3 aspect ratio, 5:4 aspect ratio, or 16:9 wide aspect ratio according to the purpose of the electronic device 100 or a user's setting, etc., and according to 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) ) can be output in various resolutions.

Meanwhile, the projection unit 110 may perform various functions for adjusting the 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, the 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 size of the screen by moving a lens and a software method of adjusting the size of the screen by cropping an image or the like. On the other hand, when the zoom function is performed, it is necessary to adjust the focus of the image. For example, the method of adjusting the focus includes a manual focus method, an electric method, and the like. The manual focus method refers to a method of focusing manually, and the electric method refers to a method in which the projector automatically focuses using a motor built-in when the zoom function is performed. When performing a 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 does not match the front projection, the screen may be distorted up or down. The keystone function refers to a function to correct a distorted picture. For example, when distortion occurs in the left and right directions of the screen, it can be corrected using horizontal keystone, and when distortion occurs in the vertical direction, it can be corrected using vertical keystone. The quick corner (4 corner) keystone function corrects the screen when the center area of the screen is normal but the corner areas are not balanced. The lens shift function is a function that moves the screen as it is when the screen is off the screen.

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

Also, the projection unit 110 may provide an illumination function using a light source. In particular, the projection unit 110 may provide a lighting function by outputting a light source using an LED. According to an 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 embodiment. Here, the surface light emitting LED may refer to an LED having a structure in which an optical sheet is disposed on the upper side of the LED so that the light source is evenly distributed and output. Specifically, when the light source is output through the LED, the light source may be evenly distributed through the optical sheet, and the light source dispersed through the optical sheet may be incident on the display panel.

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

In addition, the projection unit 110 may provide a dimming function based on the content analyzed by the processor 120 without a user input. Specifically, the projection unit 110 may control the LED to output the intensity of the light source based on information about the 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 the content. Specifically, when it is identified that the content is to be output, the processor 120 may acquire color information for each frame of the content whose output is determined. In addition, the processor 120 may control the color temperature based on the obtained color information for each frame. Here, the processor 120 may acquire at least one main color of a frame based on color information for each frame. In addition, the processor 120 may adjust the color temperature based on at least one or more obtained primary colors. 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, an output frame) includes a scene in which a fire occurred. The processor 120 may identify (or acquire) that the main color is red based on color information included in the current output frame. In addition, the processor 120 may identify a color temperature corresponding to the identified primary 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 main 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 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 in 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 in the same network as the electronic device 100 but capable of communicating with the electronic device ( For example, it may mean 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 at a brightness of 50) to the electronic device 100 . Here, the electronic device 100 may control the output of the light source based on the lighting information received from the external lighting device. For example, if the lighting information received from the external lighting device includes information for outputting the red light with a brightness of 50, the electronic device 100 may output the red light with a brightness of 50.

Meanwhile, the electronic device 100 may control the lighting function based on the biometric information. Specifically, the processor 120 may acquire the 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 information in addition to the above-described information. As an example, the electronic device may include a sensor for measuring biometric information. The processor 120 may acquire the user's biometric information through the sensor, and may control the output of the light source based on the acquired 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 mean a user's portable communication device (eg, a smart phone or a wearable device). The processor 120 may obtain the user's biometric information from an external device, and may control the output of the light source based on the obtained biometric information. Meanwhile, according to an embodiment, the electronic device may identify whether the user is sleeping, and when it is identified that the user is sleeping (or preparing to sleep), the processor 120 determines whether the user is sleeping, based on the user's biometric information. You can control the output.

The memory 140 may store at least one command related to the electronic device 100 . In addition, an operating system (O/S) for driving the electronic device 100 may be stored in the memory 140 . In addition, various software programs or applications for operating the electronic device 100 according to various embodiments of the present disclosure may be stored in the memory 140 . 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 reading/writing/modification/deletion/update of data by the processor 120 may be performed.

Meanwhile, in the present disclosure, the term memory 140 refers to a 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 in the sense of including.

The user interface 150 may include various types of input devices. For example, the user interface 150 may include a physical button. In this case, the physical button may include a function key, a direction key (eg, a four-way key), or a dial button. According to an 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 threshold time or longer. When a user input in which one key is pressed for more than a threshold time 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 a user input.

Also, the user interface 150 may receive a user input using a non-contact method. When a user input is received through a contact method, a physical force must be transmitted to the electronic device. Accordingly, 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 may perform an operation corresponding to the received user gesture. Here, the user interface 150 may receive the 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 approaches within a threshold distance. Here, the touch sensor may identify the user input even when the user does not touch the touch sensor. Meanwhile, according to another implementation example, the touch sensor may identify a user input through which the user makes contact with the touch sensor.

Meanwhile, the electronic device 100 may receive a user input through various methods other than the aforementioned user interface. As an embodiment, 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, a dedicated control device for the electronic device) or a user's portable communication device (eg, a smart phone 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 obtained user input to the electronic device 100 . The electronic device 100 may receive a user input from the portable communication device and perform an operation corresponding to the 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 voice from a microphone or an external device. Specifically, the external device may acquire the user's voice through the microphone of the external device, and may transmit the acquired user's voice to the electronic device 100 . The user voice transmitted from the external device may be audio data or digital data converted from audio data (eg, audio data converted into a frequency domain, etc.). Here, the electronic device 100 may perform an operation corresponding to the received user's voice. Specifically, the electronic device 100 may receive audio data corresponding to a user's voice through a microphone. In addition, 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 an embodiment, the Speech To Text (STT) function may be directly performed by the electronic device 100, and according to another embodiment, the Speech To Text (STT) function may be performed by 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 acquire control command data based on the converted text data. The external server may transmit control command data (in this case, 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 acquired control command data.

Meanwhile, the electronic device 100 may provide a voice recognition function using one assistance (or an artificial intelligence assistant, for example, Bixby TM, etc.), but this is only an embodiment and through a plurality of assistance 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 assistants based on a trigger word corresponding to the assistance or a specific key existing in the remote control.

Meanwhile, the electronic device 100 may receive a user input using a screen interaction. The screen interaction may refer to a function of identifying whether a predetermined event occurs through an image projected by the electronic device on a screen (or a projection surface) 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 on which 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 rod, or 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 may identify whether the user selects the projected UI. Specifically, when the predetermined event is identified at the location of the projected UI, the electronic device 100 may identify that the user has selected 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 a 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 (where the UI is projected) by performing spatial analysis. And, when it is identified that a predetermined event occurs at a specific 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 configured to input/output at least one of an audio signal and an image signal. The input/output interface 130 may receive at least one of audio and video signals from an external device, and may output a control command to the external device.

Meanwhile, in an embodiment of the present disclosure, the input/output interface 130 includes a High Definition Multimedia Interface (HDMI), a Mobile High-Definition Link (MHL), a Universal Serial Bus (USB), a USB C-type, a Display Port (DP), It may be implemented as a wired input/output interface of at least one of a Thunderbolt, a video graphics array (VGA) port, an RGB port, a digital visual interface (D-SUB), and a digital visual interface (DVI). According to an embodiment, the wired input/output interface may be implemented as an interface for inputting and outputting only an audio signal and an interface for inputting and outputting only an image signal, or may be implemented as a single interface for inputting and outputting both an audio signal and an image signal.

Also, the electronic device 100 may receive data through the wired input/output interface, but this is only an exemplary embodiment, 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 may receive power from an outlet through a power adapter. As another example, the electronic device may receive power from an external device (eg, a notebook computer or a monitor) through the DP.

On the other hand, in an embodiment of the present disclosure, the input/output interface 130 is Wi-Fi, Wi-Fi Direct, Bluetooth, ZigBee, 3G (3rd Generation), 3GPP (3rd Generation Partnership Project), and LTE (Long Term Evolution) communication of It may be implemented as a wireless input/output interface for performing communication using at least one communication method among the methods. According to an embodiment, the wireless input/output interface may be implemented as an interface for inputting and outputting only audio signals and an interface for inputting and outputting only image signals, or may be implemented as one interface for inputting and outputting both audio signals and image signals.

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

The audio output unit 160 is configured to output an audio signal. In particular, the audio output unit 160 may include an audio output mixer, an audio signal processor, and an audio 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 synthesize an analog audio signal and another analog audio signal (eg, an analog audio signal received from an external source) 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 is a sound conduit ( It can pass through the waveguide and be transmitted to the outside of the body. The sound output module may include a plurality of sound output units, and the plurality of sound output units may be symmetrically disposed on the exterior of the main body to radiate sound in all directions, that is, 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. In an embodiment, the power supply unit 170 may receive power using a connector 109 as shown in FIG. 1 . In addition, the power supply unit 170 may receive power using a DC power cord of 220V. However, the present invention is not limited thereto, and the electronic device may receive power using a USB power cord or may receive power using a wireless charging method.

Also, 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. As an example, the power supply unit 170 charges the power of the internal battery using at least one of a DC power cord of 220V, 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 groove, the power supply unit 170 may receive power through the external battery. That is, the power supply unit 170 may receive power directly from the external battery, or charge the internal battery through the external battery and receive power from the charged internal battery.

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

Meanwhile, in relation to power consumption, the electronic device 100 may have power consumption of less than or equal to a preset value (eg, 43W) due to a socket shape and other standards. In this case, the electronic device 100 may change 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 consumption.

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

Specifically, the electronic device 100 may be connected to a portable terminal device for controlling the electronic device 100 and a screen output from the electronic device 100 may be controlled through a user input input from the portable terminal device. For example, the portable 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 portable terminal device from the portable terminal device, and is input from the portable 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 performing a connection with the portable terminal device through various communication methods such as Miracast, Airplay, wireless DEX, and Remote PC method.

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

As an embodiment, when a preset gesture is detected through the display of the mobile terminal device after positioning the mobile terminal device near the electronic device while specific content or music is being output from the mobile terminal device (eg, motion tab view), the electronic device (100) may output content or music being output from the portable terminal device.

In an embodiment, in a state in which specific content or music is being output from the portable terminal device, the portable terminal device approaches the electronic device 100 by a preset distance or less (eg, non-contact tab view), or the portable terminal device communicates with the electronic device 100 When two contacts are made at a short interval (eg, a contact tap view), the electronic device 100 may output content or music being output from the portable terminal device.

In the above-described embodiment, it has been described that the same screen as the screen provided by the portable terminal device is provided by the electronic device 100, but the present disclosure is not limited thereto. That is, when the connection between the portable terminal device and the electronic device 100 is established, the first screen provided from the portable terminal device is output from the portable terminal device, and the first screen provided from the portable terminal device different from the first screen is provided from the electronic device 100 on the portable terminal device. A second screen may be output. For example, the first screen may be a screen provided by a first application installed in the portable terminal device, and the second screen may be a screen provided by a second application installed in 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 the 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. The condition for the electronic device 100 to output the standby screen is not limited to the above-described example, and the standby screen may be output according to 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 atypical object by extracting only the shape of a specific object from data received from the external device, and may output a standby screen including the acquired atypical object.

3 is a perspective view illustrating an 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 ring provided for a user to hold or move the electronic device 100, or the support 108a may be a main body ( 105) may be a stand supporting the.

The support 108a may be connected to a hinge structure so as to be coupled to or separated from the outer circumferential surface of the main body 105 as shown in FIG. 3 , 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 structure of the supports 108a may be variously implemented without limitation. Although not shown in the drawings, the support 108a is built into the main body 105 so that a user can take it out and use it if necessary, or the support 108a is implemented as a separate accessory and can be detached 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 main body 105 in a state in which the support 108a is separated from the outer circumferential surface of the main body 105, and the second support surface 108a-2 is the supporter In a state in which the 108a is separated from the outer circumferential surface of the main body 105 , it may be one surface facing the inner direction of the main body 105 .

The first support surface 108a - 1 develops from the lower portion of the main body 105 to the upper portion of the main body 105 and can be moved away from the main body 105 , and the first support surface 108a - 1 is flat or uniformly curved. may have a shape. The first support surface 108a-1 is formed when the electronic device 100 is mounted so that the outer surface of the main body 105 is in contact with the bottom surface, that is, when the projection lens 111 is disposed to face the front side of the main body ( 105) can be supported. In an embodiment including two or more supports 108a, the emitting angle of the head 103 and the projection lens 111 may be adjusted by adjusting the gap or the hinge opening angle of the two supports 108a.

The second support surface 108a-2 is a surface in contact with a user or an external support structure when the support 108a is supported by a user or an external support 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 fix the head 103 by directing the projection lens 111 in the front direction, hold the support 108a to move the electronic device 100 , and use the electronic device 100 like a flashlight.

The support groove 104 is provided in the main body 105 and has a groove structure that can be accommodated when the supporter 108a is not in use. It may be implemented as a groove structure. The support 108a may be stored on the outer peripheral surface of the main body 105 when the support 108a is not in use through the support groove 104, and the outer peripheral surface of the main body 105 may be kept smooth.

Alternatively, the supporter 108a may have a structure in which the supporter 108a is pulled out of the main body 105 in a situation where the supporter 108a is stored inside the main body 105 and the supporter 108a is required. In this case, the support groove 104 may have a structure introduced into the body 105 to accommodate the support 108a, and the second support surface 108a-2 is in close contact with the outer peripheral surface of the main body 105 or a separate support. A door (not shown) for opening and closing 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 includes the electronic device 100 . It may include a protective case (not shown) to protect and easily transport, or is coupled to a tripod (not shown) for supporting or fixing the main body 105 or an external surface to fix the electronic device 100 . It may include a possible bracket (not shown).

4 is a perspective view illustrating an appearance of an electronic device 100 according to still another exemplary 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 ring provided for a user to hold 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 face at any angle.

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

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

Referring to FIG. 5 , the electronic device 100 may include a support (or referred to as a “pedestal”) 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 an embodiment of the present disclosure, the heights of the two support members 108c-2 are the same, so that one end surface of the two support members 108c-2 has a groove and a hinge member 108c provided on one outer circumferential surface of the main body 105, respectively. -3) can be combined or separated.

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

When the two support members and the body are coupled by the hinge member 108c-3, the body 105 is rotated based on the imaginary horizontal axis formed by the two hinge members 108c-3 and the projection lens 111 is rotated. can be adjusted.

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

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

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

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) for connecting the.

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

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 may be rotated.

Meanwhile, the support illustrated in FIGS. 3, 4, 5, 6A and 6B is only an example, and it goes without saying that the electronic device 100 may include the support in various positions or shapes.

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

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 the image of the content received by the electronic device 100 on the projection surface using light. The image may have various resolution ratios. For example, the image may have a standard ratio such as 16:9, but may have an atypical ratio other than 16:9. When the image has an atypical ratio, when the electronic device 100 projects the image on the projection surface, dark regions (or letter boxes) may be formed in upper, lower, left, and right of the image. That is, when the image has an atypical ratio and the electronic device 100 projects the image on the projection surface using light, the image may include a data area and a dark area. Alternatively, when the electronic device 100 is positioned to be misaligned with respect to the projection surface, the shape of the image projected on the projection surface may not be square or rectangular because the light irradiated to the projection surface is not square or rectangular. When the electronic device 100 is a projector, the projected image may be corrected to appear in a square or rectangular shape through keystone correction. However, since the irradiated light is still not square or rectangular, a dark area is formed around the data area of the image. can be formed. Since the dark area around the data area of the image may be recognized as a different area from the area around the projection surface, it may interfere with the user's immersion in the image and may cause a sense of heterogeneity. According to the present disclosure, by adjusting the color property of the dark area so that it looks similar to the surrounding area of the projection surface, it is possible to help the image immersion and not feel a sense of heterogeneity.

The camera 180 captures the projection area onto which the 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 configuration of the electronic device 100 . That is, the processor 120 may control the projector 110 to project an image onto the projection surface using light, and may control the camera 180 to photograph the projection area.

The processor 120 may control the camera 180 to obtain an image corresponding to the projection area onto which the 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 captured may include an image. The image may include a data area and a dark area. The data area is an area including actual image content, 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, uniform color attribute information may be included within a predetermined 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 the threshold as the dark area, and determines the area in which the distribution uniformity is less than the threshold as the 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 region and color attribute information on the dark region from the image, respectively. For example, the color attribute information may include brightness, saturation, color, transparency information, and the like. The processor 120 may compare the color attribute information around the projection region and the color attribute information of the dark region in the image, respectively. In addition, the processor 120 may identify a dark area in the image corresponding to the dark area identified from the image. The dark region identified from the image may be a dark region identified in an image obtained by photographing an image projected on the projection surface. In addition, 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 the color property around the projection area and the color property of the dark area projected on the projection surface based on a difference between the color property information around the projection area and the color property information of the dark area. As an embodiment, the processor 120 may adjust the color property of the dark area projected on the projection surface such that a difference from the color property of the dark area projected on the projection surface is minimized. Reducing the difference in the 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, the projected dark area is adjusted so that no difference is felt from the area around the projection area. In other words, reducing the difference in the color properties of the dark region projected on the projection surface means that it is not only an example of reducing the difference by adjusting the color properties of the original image itself, but also that it is projected on the projection surface while maintaining the color properties of the original image itself. It can also include examples of adjusting the color properties visible to the user.

As an embodiment, the processor 120 may project the image on the projection surface by increasing the transparency of the dark region of the identified image. The processor 120 may project the image onto the projection surface by increasing the transparency of the dark region of the image when projecting the image on the projection surface. In this case, the transparency of the dark area may be increased, so that the dark area may be hardly visible. Accordingly, since the dark area projected on the projection surface is greatly affected by the color property around the projection area, the difference between the color property around the projection area and the color property of the dark area projected on the projection surface can be minimized.

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

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 . This can be done. Since the projection unit 110 and the camera 180 perform the same functions as the projection unit 110 and the camera 180 of FIG. 7 , a detailed description thereof will be omitted. In addition, the processor 120 performs a function similar to that of the processor 120 of FIG. 7 , focusing on different functions.

The memory 140 may store data and algorithms that perform functions of the electronic device 100 , and may store programs and commands driven in the electronic device 100 . The memory 140 may store an algorithm for identifying a color property around the projection area and a color property for a dark area 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 a color attribute and reducing a difference value. 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. In addition, 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 may include 3G, Long Term Evolution (LTE), 5G, Wi-Fi, Wi-Fi Direct, Bluetooth, Digital Multimedia Broadcasting (DMB), and Advanced Television Systems (ATSC). Committee), Digital Video Broadcasting (DVB), Local Area Network (LAN), Zigbee, beacon, infrared communication, etc. may include a module capable of performing communication. The wireless input/output interface for communicating with an external device may be referred to as 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 irradiate light to the projection area. For example, the processor 120 may control the projection unit 110 to project an image on the projection surface. The processor 120 may identify optical property information that reduces a difference between the color property information around the projection area and the color property information in the dark area. Then, the processor 120 irradiates the light corresponding to the identified light property information to the dark area projected on the projection surface to reduce a difference between the color property around the projection area and the color property of the dark area projected on the projection surface. The lighting unit 190 may be controlled. The lighting unit 190 irradiates the light corresponding to the light property information identified by the control of the processor 120 to 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 . The processor 120 obtains color (or light) property information around the projection area, color property information on the projected image, etc., based on the sensed signal, and the color property around the projection area and the image projected on the projection surface It is possible to reduce the difference in the color properties of the dark region. Also, the sensor 195 may acquire information such as movement of the electronic device 100 , a distance from the projection surface, and an angle. For example, the sensor 195 may include an acceleration sensor, a gravity sensor, a gyro sensor, a geomagnetic sensor, a direction sensor, a motion recognition sensor, a proximity sensor, an illuminance sensor, a thermal sensor, a touch sensor, an infrared sensor, an ultrasonic sensor, etc. can

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

So far, the configuration of the electronic device 100 has been described. Hereinafter, a specific embodiment of reducing the difference between the color property around the projection area and the color property of the 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 example of adjusting color properties of a dark area of an image projected on the projection surface It is a view for explaining an example, and FIG. 11 is a view for explaining a specific embodiment of adjusting the color property of a dark region of an image projected on a projection surface. It 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 the image has an atypical resolution ratio or the electronic device is positioned to deviate from the vertical axis of the projection surface 10 , the image may include the data area 21 and the

dark areas

22 and 23 . 9 shows an example in which the

dark areas

22 and 23 are formed on the left and right sides of the data area 21 , but the dark areas may be formed in any of the upper, lower, left, and right areas of the data area 21 . Since the

dark areas

22 and 23 are areas irradiated with light from the electronic device, they may have different color properties from those around the projection area. Accordingly, since the

dark areas

22 and 23 are distinguished from the data area 21 and the vicinity of the projection area, the user may feel a sense of heterogeneity and may be disturbed in content immersion.

The electronic device may acquire a captured image in which the projection area including the image is captured. The electronic device may identify the dark area in the projection area from the captured image except for the data area of the image.

The electronic device may extract color property information around the projection area and color property information of the dark area from the captured image, respectively. For example, the color attribute information may include brightness, saturation, color, transparency information, and the like. The electronic device may compare each of the color attribute information around the projection area and the color attribute information of the dark area in the captured image. In addition, the electronic device may identify the dark area of the image corresponding to the dark area identified from the captured image. The electronic device may reduce the difference between the color property around the projection area and the color property of the dark area projected on the projection surface based on the difference between the color property information around the projection area and the color property information of the dark area. Reducing the difference in the 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, the projected dark area is adjusted so that no difference is felt from the area around the projection area. That is, as shown in FIG. 10 , the difference in the color properties of the

dark areas

22 and 23 of the image may be the minimum with the color properties around the projection area, and the user does not recognize the

dark areas

22 and 23 . can't

Referring to FIG. 11 , an image in which the dark region is divided into a plurality of regions is illustrated. The image shown in FIG. 11 may be an image of the 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 properties for each area. For example, the color properties of the upper regions 22-1 and 23-1 and the lower regions 22-4 and 23-4 of the dark region may be different. Alternatively, the color properties 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 a color attribute value corresponding to each area.

Referring to FIG. 12 , a perspective view of the above-described electronic device 100 is shown. The electronic device may further include a lighting unit 190 disposed around the projection lens 111 for projecting an image. The lighting unit 190 may include a plurality of lighting modules. For example, the lighting module may be disposed in a circle with the projection lens 111 as the center, and may be disposed symmetrically in top, bottom, left, and right sides. The lighting module may include LEDs, lasers, and the like. The electronic device may reduce the difference between the color property around the projection area and the color property of the dark area projected on the projection surface by using the lighting unit 190 .

Referring to FIG. 13 , the electronic device may project an image including the data area and the

dark areas

22 and 23 on the projection surface 10 . The electronic device may identify a dark area excluding the data area in 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 the optical property information for reducing a difference between the color property information around the projection area and the color property information in the dark area. The electronic device may irradiate the light corresponding to the identified light property information to the dark area projected on the projection surface to reduce a difference between the color property around the projection area and the color property of the dark area projected on the projection surface.

For example, the electronic device may irradiate light corresponding to the identified light property to the left dark area 22 by using the lighting module 191 located on the left side of the projection lens 111 . Alternatively, the electronic device may irradiate light corresponding to the identified light property to the right dark area 23 by using the illumination module 192 located on the right side of the projection lens 111 . Since the light corresponding to the identified light property minimizes the difference between the color property around the projection area and the color property of the dark area projected on the projection surface, the user may not be able to recognize the

dark areas

22 and 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.

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 areas

22 and 23 of the image projected on the projection surface 10 by the light from the external device 800 may include different color properties.

The electronic device 100 may receive optical 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) property information around the projection area and color (light) property information of the

dark areas

22 and 23 projected on the projection surface 10 by using the captured image. The electronic device 100 receives from the external device 800 the light property information irradiated by the external device 800 , color (light) property information around the projection area obtained from the photographed image, and the light property information projected on the projection surface 10 . Using the color (light) attribute information of the

dark regions

22 and 23, color (light) attribute information around the projection region and color (light) attribute information of the

dark regions

22 and 23 may be calculated. For example, the color (light) attribute information may include brightness (illuminance) information. And, in general, the brightness (illuminance) tends to be inversely proportional to the square of the distance from the light source. Accordingly, the electronic device may calculate color (light) property information around the projection area according to the distance and color (light) property information of the

dark areas

22 and 23 by using the obtained information. In addition, 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 radiate light to the

dark areas

22 and 23 based on the identified light property.

Referring to FIG. 15 , two electronic devices 100 - 1 and 100 - 2 are shown. The two electronic devices 100 - 1 and 100 - 2 project the respective images 30 - 1 and 30 - 2 on one projection surface 10 . Each of the 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 the respective images 30 - 1 and 30 - 2 on the same projection surface 10 , so that the user can enjoy an image having a new effect. 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 shifted, the user may view the 3D image using sunglasses, etc. possible effects can be obtained. Alternatively, two similar images 30 - 1 and 30 - 2 having different color information are synthesized, so that the user can enjoy images 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 each of the images 30-1 and 30-2 so that the user can view both images 30-1 and 30-2. can be appropriately recognized.

Up to now, various embodiments of an electronic device for adjusting color properties have been described. Hereinafter, a method of controlling the electronic device will be described.

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

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

For example, the electronic device may identify the dark area excluding the data area in 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 equal to or greater than the threshold value as the dark area, and may determine the area in which the distribution uniformity is less than the threshold value as the data area.

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

The electronic device may reduce the difference between the color property around the projection area and the color property of the dark area projected on the projection surface based on the difference between the color property information around the projection area and the color property information of the dark area. For example, the electronic device may identify the dark area of the image corresponding to the dark area identified from the captured image. The electronic device may adjust the color property of the dark area of the identified image to reduce a difference between the color property around the projection area and the color property of the dark area projected on the projection surface. Alternatively, the electronic device may project the image on the projection surface by increasing the transparency of the dark region of the identified image. Alternatively, the electronic device may compare color attribute information around the projection region and color attribute information of the dark region, respectively. In addition, the electronic device may adjust the brightness, saturation, and color values of the identified dark regions of the image so that the difference between the respective color attribute information is reduced based on the comparison result. Alternatively, the electronic device may identify the optical property information for reducing a difference between the color property information around the projection area and the color property information in the dark area. The electronic device may irradiate light corresponding to the identified light property information to the projected dark area using the lighting unit to reduce a difference between the color property around the projection area and the color property of the dark area projected on the projection surface.

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

For example, the computer-readable storage medium 1700 projects an image including a data area and a dark area onto a projection surface ( 1710 ), and acquires an image corresponding to the projection area on which the image is projected ( 1720 ) , performing a step 1750 of reducing the difference between the color property around the projection area and the color property of the dark area projected on the projection surface based on the color property information around the projection area and the color property information of the dark area obtained from the image program can be stored.

The non-transitory readable medium refers to a medium that stores data semi-permanently, rather than a medium that stores data for a short moment, such as a register, cache, memory, etc., and can be read by a device. Specifically, the above-described various applications or programs may be provided by being stored in a non-transitory readable medium such as a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

In addition, although preferred embodiments of the present disclosure have been illustrated 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 gist of the present disclosure as claimed in the claims Various modifications may be made by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present disclosure.

Claims

projection unit;

camera; and

processor; including;

The processor is

Controls the projection unit to project an image including a data area and a dark area onto a projection surface, and obtains an image corresponding to the projection area on which the image is projected through the camera,

Control to reduce a difference between the color property around the projection area and the color property of the dark area projected on the projection surface based on the color property information around the projection area and the color property information on the dark area obtained from the image that, electronic devices.
According to claim 1,

The processor is

and determining an area in which distribution uniformity of each pixel value constituting the image is equal to or greater than a threshold value as the dark area, and determining an area in which the distribution uniformity is less than the threshold value as a data area.
According to claim 1,

The processor is

Identifies a dark area of the image corresponding to the identified dark area from the image, and adjusts the color property of the identified dark area of the image to determine the color property around the projection area and the color of the dark area projected on the projection surface An electronic device that controls to reduce the difference in properties.
4. The method of claim 3,

The color property information includes transparency,

The processor is

An electronic device for projecting the image on the projection surface by increasing the transparency of the dark region of the image.
4. The method of claim 3,

The color attribute information includes brightness, saturation, and color information,

The processor is

Comparing each of the color property information around the projection area and the color property information of the dark area, and adjusting the brightness, saturation, and color values of the dark area of the image so as to reduce the difference in the respective color property information, the electronic device .
According to claim 1,

The electronic device further comprising; a lighting unit disposed around the projection unit.
7. The method of claim 6,

The processor is

Identifies optical property information that reduces a difference between the color property information around the projection area and the color property information in the dark area, and determines the difference between the color property around the projection area and the color property of the dark area projected on the projection surface and controlling the illuminator to project the light corresponding to the identified light attribute information to the projected dark area region to reduce.
projecting an image including a data area and a dark area onto a projection surface;

acquiring an image corresponding to a projection area onto which the image is projected; and

reducing a difference between a color property around the projection area and a color property of a dark area projected on the projection surface based on color property information around the projection area and color property information on the dark area obtained from the image; A control method of an electronic device comprising a.
9. The method of claim 8,

The step of identifying the dark region comprises:

The control method of the electronic device, wherein a region in which the distribution uniformity of each pixel value constituting the image is equal to or greater than a threshold value is determined as the dark region, and a region in which the distribution uniformity is less than the threshold value is determined as a data region.
9. The method of claim 8,

The step of reducing the difference in color properties comprises:

Identifies a dark area of the image corresponding to the identified dark area from the image, and adjusts the color property of the identified dark area of the image to determine the color property around the projection area and the color of the dark area projected on the projection surface A method of controlling an electronic device for reducing a difference in properties.
11. The method of claim 10,

The color property information includes transparency,

The step of reducing the difference in color properties comprises:

The method of controlling an electronic device, wherein the image is projected on the projection surface by increasing the transparency of the dark region of the image.
11. The method of claim 10,

The color attribute information includes brightness, saturation, and color information,

The step of reducing the difference in color properties comprises:

Comparing each of the color property information around the projection area and the color property information of the dark area, and adjusting the brightness, saturation, and color values of the dark area of the image so as to reduce the difference in the respective color property information, the electronic device control method.
9. The method of claim 8,

The step of reducing the difference in color properties comprises:

Identifies optical property information that reduces a difference between the color property information around the projection area and the color property information in the dark area, and determines the difference between the color property around the projection area and the color property of the dark area projected on the projection surface and projecting the light corresponding to the identified light attribute information to the projected dark area to reduce the light.
projecting an image including a data area and a dark area onto a projection surface;

acquiring an image corresponding to a projection area onto which the image is projected; and

reducing a difference between a color property around the projection area and a color property of a dark area projected on the projection surface based on color property information around the projection area and color property information on the dark area 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 record is recorded.
15. The method of claim 14,

The step of reducing the difference in color properties comprises:

Identifies a dark area of the image corresponding to the identified dark area from the image, and adjusts the color property of the identified dark area of the image to determine the color property around the projection area and the color of the dark area projected on the projection surface A non-transitory computer-readable storage medium having recorded thereon a program for performing a method of controlling an electronic device, reducing a difference in properties.