Display device and method for operating same

Abstract

The present disclosure relates to a display device and a method for operating same. The display device according to one embodiment of the present disclosure comprises: a display; a memory; and a controller, wherein the controller may: output, via the display, a predetermined screen for setting an image corresponding to a background; display, in a preview area of the predetermined screen, a predetermined image selected as a candidate for the image corresponding to the background if the predetermined image is stored in the memory; and blur a representative image of the predetermined image and display the blurred representative image in the preview area if the predetermined image is not stored in the memory.

Description

Display device and method of operation thereof

[0001] The present disclosure relates to a display device and a method of operating the same.

[0002] As the information society develops, the demand for display devices is increasing in various forms; in response to this, various display devices such as LCD (Liquid Crystal Display Device), PDP (Plasma Display Panel), ELD (Electroluminescent Display), VFD (Vacuum Fluorescent Display), and OLED (Organic Light Emitting Diode) have recently been researched and are being used.

[0003] Among these, the LCD panel is equipped with a TFT substrate and a color substrate facing each other with a liquid crystal layer in between, and can display an image using light provided from a backlight unit. Additionally, the OLED panel can display an image by depositing a self-emissive organic layer on a substrate having a transparent electrode formed thereon.

[0004] Recently, the role of display devices is expanding to include not only providing video content but also displaying various information (e.g., time, weather, schedules, etc.), advertisements, and art images; in line with this trend, active research is being conducted on the diverse functions of display devices.

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

[0006] Another objective is to provide a display device and a method of operation thereof that can intuitively set a background image output through a display.

[0007] Another objective is to provide a display device capable of providing various previews of an image selected as a candidate for a background image, and a method of operation thereof.

[0008] Another objective is to provide a display device capable of naturally outputting a video provided as a preview as a background video, and a method of operation thereof.

[0009] A display device according to one embodiment of the present disclosure for achieving the above objective comprises: a display; a memory; and a controller, wherein the controller outputs a predetermined screen for setting an image corresponding to a background through the display, and when a predetermined image selected as a candidate for the image corresponding to the background is stored in the memory, the predetermined image is displayed in a preview area of ​​the predetermined screen, and when the predetermined image is not stored in the memory, a representative image of the predetermined image is blurred, and the blurred representative image is displayed in the preview area.

[0010] A method of operation of a display device according to one embodiment of the present disclosure for achieving the above objective may include: an operation of outputting a predetermined screen through a display for setting an image corresponding to a background; an operation of displaying the predetermined image in a preview area of ​​the predetermined screen when the predetermined image selected as a candidate for the image corresponding to the background is stored in a memory; an operation of blurring a representative image of the predetermined image when the predetermined image is not stored in the memory; and an operation of displaying the blurred representative image in the preview area.

[0011] The effects of the display device and the method of operation according to the present disclosure are described as follows.

[0012] According to at least one embodiment of the present disclosure, a background image output through a display can be intuitively set.

[0013] According to at least one embodiment of the present disclosure, an image selected as a candidate for a background image can be provided as various previews.

[0014] According to at least one embodiment of the present disclosure, an image provided as a preview can be naturally output as a background image.

[0015] Further scopes of the applicability of the present disclosure will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present disclosure are clearly understood by those skilled in the art, specific embodiments, such as the detailed description and preferred embodiments of the present disclosure, should be understood as being given merely as examples.

[0016] FIG. 1 is a block diagram of a display device according to one embodiment of the present disclosure.

[0017] FIG. 2 is a block diagram of a remote control device according to one embodiment of the present disclosure.

[0018] FIG. 3 is a drawing showing an example of the configuration of a remote control device according to one embodiment of the present disclosure.

[0019] FIG. 4 is a drawing showing an example of utilizing a remote control device according to one embodiment of the present disclosure.

[0020] FIGS. 5a to 5c are drawings illustrating a light-shielding state according to one embodiment of the present disclosure.

[0021] FIGS. 6a and 6b are drawings illustrating a non-electronic shielding method according to one embodiment of the present disclosure, and FIG. 6c is a drawing illustrating an electronic shielding method according to another embodiment of the present disclosure.

[0022] FIGS. 7a and FIGS. 7b are drawings illustrating various forms of a display according to one embodiment of the present disclosure.

[0023] FIG. 8 is a flowchart of a method of operation of a display device according to one embodiment of the present disclosure.

[0024] FIGS. 9 to 12 are drawings referenced in the description of the operation of a display device according to one embodiment of the present disclosure.

[0025] FIG. 13 is a flowchart of a method of operation of a display device according to another embodiment of the present disclosure.

[0026] FIGS. 14a through 16 are drawings referenced in the description of the operation of a display device according to another embodiment of the present disclosure.

[0027] The present disclosure is described in detail below with reference to the drawings. In order to clearly and concisely explain the present disclosure, parts unrelated to the description have been omitted from the drawings, and the same or extremely similar parts are denoted by the same reference numerals throughout the specification.

[0028] The suffixes "module" and "part" for components used in the following description are assigned solely for the ease of drafting this specification and do not inherently confer any particularly significant meaning or role. Accordingly, the terms "module" and "part" may be used interchangeably.

[0029] In this application, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0030] Additionally, in this specification, terms such as first, second, etc. may be used to describe various elements, but these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0031] FIG. 1 is a block diagram of a display device according to one embodiment of the present disclosure.

[0032] Referring to FIG. 1, the display device (100) may include a broadcast receiver (130), an external device interface (135), a memory (140), a user input interface (150), a controller (170), a wireless communication interface (173), a display (180), a speaker (185), and a power supply circuit (190).

[0033] The broadcast receiver (130) may include a tuner (131), a demodulator (132), and a network interface (133).

[0034] The tuner (131) can tune to a specific broadcast channel according to a channel tuning command. The tuner (131) can receive a broadcast signal for the tuned specific broadcast channel.

[0035] The demodulator (132) can separate the received broadcast signal into a video signal, an audio signal, and a data signal related to the broadcast program, and can restore the separated video signal, audio signal, and data signal into a form that can be output.

[0036] The external device interface (135) can receive an application or a list of applications within an adjacent external device and transmit it to the controller (170) or memory (140).

[0037] The external device interface (135) can provide a connection path between the display device (100) and an external device. The external device interface (135) can receive one or more of video and audio output from an external device connected to the display device (100) wirelessly or via a wired connection, and transmit them to the controller (170). The external device interface (135) may include a plurality of external input terminals. The plurality of external input terminals may include an RGB terminal, one or more HDMI (High Definition Multimedia Interface) terminals, and a component terminal.

[0038] The video signal of an external device input through the external device interface (135) can be output through the display (180). The audio signal of an external device input through the external device interface (135) can be output through the speaker (185).

[0039] The external device that can be connected to the external device interface (135) may be any one of a set-top box, Blu-ray player, DVD player, game console, soundbar, smartphone, PC, USB memory, or home theater, but this is merely an example.

[0040] The network interface (133) may provide an interface for connecting the display device (100) to a wired / wireless network including the Internet network. The network interface (133) may transmit or receive data to or from other users or other electronic devices through the connected network or another network linked to the connected network.

[0041] In addition, some of the content data stored in the display device (100) can be transmitted to another user or other electronic device selected among other users or other electronic devices that are previously registered in the display device (100).

[0042] The network interface (133) can access a specific web page through a connected network or another network linked to the connected network. That is, it can access a specific web page through a network and transmit or receive data with the corresponding server.

[0043] Additionally, the network interface (133) can receive content or data provided by a content provider or network operator. That is, the network interface (133) can receive content such as movies, advertisements, games, VOD, broadcast signals, and related information provided by a content provider or network provider through a network.

[0044] Additionally, the network interface (133) can receive firmware update information and update files provided by the network operator, and can transmit data to the internet or a content provider or network operator.

[0045] The network interface (133) can select and receive a desired application among the applications that are open to the public through the network.

[0046] The memory (140) can store programs for each signal processing and control within the controller (170), and can store signal-processed video, audio, or data signals.

[0047] Additionally, the memory (140) may perform the function of temporarily storing video, audio, or data signals input from an external device interface (135) or a network interface (133), and may also store information regarding a predetermined image through a channel memory function.

[0048] The memory (140) can store an application or a list of applications input from an external device interface (135) or a network interface (133).

[0049] The display device (100) can play content files (video files, still image files, music files, document files, application files, etc.) stored in memory (140) and provide them to the user.

[0050] The user input interface (150) can transmit a signal input by the user to the controller (170) or transmit a signal from the controller (170) to the user. For example, the user input interface (150) can receive and process control signals such as power on / off, channel selection, and screen setting from the remote control device (200) according to various communication methods such as Bluetooth, Ultra Wideband (WB), ZigBee, Radio Frequency (RF) communication, or Infrared (IR) communication, or process to transmit control signals from the controller (170) to the remote control device (200).

[0051] Additionally, the user input interface (150) can transmit control signals input from local keys (not shown), such as power key, channel key, volume key, and setting value, to the controller (170).

[0052] The image signal processed by the controller (170) can be input to the display (180) and displayed as an image corresponding to the image signal. Additionally, the image signal processed by the controller (170) can be input to an external output device through the external device interface (135).

[0053] The voice signal processed by the controller (170) can be output as audio to the speaker (185). Additionally, the voice signal processed by the controller (170) can be input to an external output device through the external device interface (135).

[0054] In addition, the controller (170) can control the overall operation within the display device (100).

[0055] Additionally, the controller (170) can control the display device (100) by means of user commands or internal programs entered through the user input interface (150), and can connect to a network to allow the user to download an application or a list of applications desired by the user into the display device (100).

[0056] The controller (170) enables the processed video or audio signal, such as channel information selected by the user, to be output through the display (180) or speaker (185).

[0057] Additionally, the controller (170) enables a video signal or audio signal from an external device, such as a camera or camcorder, input through the external device interface (135) according to an external device video playback command received through the user input interface (150), to be output through the display (180) or speaker (185).

[0058] Meanwhile, the controller (170) can control the display (180) to display video, for example, broadcast video input through the tuner (131), external input video input through the external device interface (135), video input through the network interface, or video stored in the memory (140) can be controlled to be displayed on the display (180). In this case, the video displayed on the display (180) may be a still image or a video, and may be a 2D image or a 3D image.

[0059] Additionally, the controller (170) can control the playback of content stored in the display device (100), received broadcast content, or external input content input from the outside, and the content may be in various forms such as broadcast video, external input video, audio file, still image, connected web screen, and document file.

[0060] The wireless communication interface (173) can communicate with an external device via wired or wireless communication. The wireless communication interface (173) can perform short-range communication with an external device. To this end, the wireless communication interface (173) can support short-range communication by using at least one of Bluetooth, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Near Field Communication (NFC), Wireless-Fidelity (Wi-Fi), Wi-Fi Direct, and Wireless Universal Serial Bus (Wireless USB) technologies. Such wireless communication interface (173) can support wireless communication between the display device (100) and a wireless communication system, between the display device (100) and another display device (100), or between the display device (100) and a network where the display device (100, or an external server) is located, through a wireless area network. Short-range wireless communication networks can be Wireless Personal Area Networks.

[0061] Here, another display device (100) may be a mobile terminal such as a wearable device (e.g., a smartwatch, smart glass, HMD (head mounted display)), a smartphone, etc., capable of exchanging data with (or interacting with) the display device (100) according to the present disclosure. A wireless communication interface (173) may detect (or recognize) a wearable device capable of communicating around the display device (100).

[0062] Furthermore, if the detected wearable device is a device authenticated to communicate with the display device (100) according to the present disclosure, the controller (170) may transmit at least a portion of the data processed in the display device (100) to the wearable device through the wireless communication interface (173). Accordingly, the user of the wearable device may use the data processed in the display device (100) through the wearable device.

[0063] The display (180) can generate a driving signal by converting the video signal, data signal, OSD signal processed by the controller (170) or the video signal, data signal, etc. received from the external device interface (135) into R, G, and B signals, respectively.

[0064] Meanwhile, since the display device (100) illustrated in FIG. 1 is merely an embodiment of the present disclosure, some of the illustrated components may be integrated, added, or omitted depending on the specifications of the actual display device (100) being implemented.

[0065] That is, as needed, two or more components may be combined into a single component, or a single component may be subdivided into two or more components. In addition, the function performed in each block is intended to explain the embodiments of the present disclosure, and the specific operation or device does not limit the scope of the rights of the present disclosure.

[0066] According to another embodiment of the present disclosure, the display device (100) may receive and play video through a network interface (133) or an external device interface (135) without having a tuner (131) and a demodulator (132), unlike as shown in FIG. 1.

[0067] For example, the display device (100) may be implemented by separating it into a video processing device, such as a set-top box, for receiving broadcast signals or content according to various network services, and a content playback device for playing content input from the video processing device.

[0068] In this case, the method of operation of a display device according to an embodiment of the present disclosure described below may be performed not only by the display device (100) described with reference to FIG. 1, but also by any one of an image processing device such as the separated set-top box, or a content playback device having a display (180) and a speaker (185).

[0069] Next, with reference to FIGS. 2 and 3, a remote control device according to one embodiment of the present disclosure will be described.

[0070] FIG. 2 is a block diagram of a remote control device according to one embodiment of the present disclosure, and FIG. 3 is a drawing showing an example of the configuration of a remote control device according to one embodiment of the present disclosure.

[0071] First, referring to FIG. 2, the remote control device (200) may include a fingerprint scanner (210), a wireless communication circuit (220), a user input interface (230), a sensor (240), an output interface (250), a power supply circuit (260), a memory (270), a controller (280), and a microphone (290).

[0072] Referring to FIG. 2, the wireless communication circuit (220) transmits and receives signals with any one of the display devices according to the embodiments of the present disclosure described above.

[0073] The remote control device (200) is equipped with an RF circuit (221) capable of transmitting and receiving signals to and from the display device (100) according to RF communication standards, and may be equipped with an IR circuit (223) capable of transmitting and receiving signals to and from the display device (100) according to IR communication standards. Additionally, the remote control device (200) may be equipped with a Bluetooth circuit (225) capable of transmitting and receiving signals to and from the display device (100) according to Bluetooth communication standards. Furthermore, the remote control device (200) may be equipped with an NFC circuit (227) capable of transmitting and receiving signals to and from the display device (100) according to NFC (Near Field Communication) communication standards, and may be equipped with a WLAN circuit (229) capable of transmitting and receiving signals to and from the display device (100) according to WLAN (Wireless LAN) communication standards.

[0074] Additionally, the remote control device (200) transmits a signal containing information regarding the movement of the remote control device (200), etc., to the display device (100) through a wireless communication circuit (220).

[0075] Meanwhile, the remote control device (200) can receive a signal transmitted by the display device (100) through the RF circuit (221), and, if necessary, can transmit commands regarding power on / off, channel change, volume change, etc. to the display device (100) through the IR circuit (223).

[0076] The user input interface (230) may be composed of a keypad, buttons, a touchpad, or a touch screen. The user can input commands related to the display device (100) to the remote control device (200) by operating the user input interface (230). If the user input interface (230) is equipped with a hard key button, the user can input commands related to the display device (100) to the remote control device (200) through a push operation of the hard key button. This will be explained with reference to FIG. 3.

[0077] Referring to FIG. 3, the remote control device (200) may include a plurality of buttons. The plurality of buttons may include a fingerprint recognition button (212), a power button (231), a home button (232), a live button (233), an external input button (234), a volume control button (235), a voice recognition button (236), a channel change button (237), a confirmation button (238), and a back button (239).

[0078] The fingerprint recognition button (212) may be a button for recognizing a user's fingerprint. In one embodiment, the fingerprint recognition button (212) may be capable of a push operation and may receive a push operation and a fingerprint recognition operation.

[0079] The power button (231) may be a button for turning the power of the display device (100) on / off.

[0080] The home button (232) may be a button for moving to the home screen of the display device (100).

[0081] The live button (233) may be a button for displaying a live broadcast program.

[0082] The external input button (234) may be a button for receiving an external input connected to the display device (100).

[0083] The volume control button (235) may be a button for adjusting the volume output by the display device (100).

[0084] The voice recognition button (236) may be a button for receiving the user's voice and recognizing the received voice.

[0085] The channel change button (237) may be a button for receiving a broadcast signal of a specific broadcast channel.

[0086] The confirmation button (238) may be a button for selecting a specific function, and the back button (239) may be a button for returning to the previous screen.

[0087] Figure 2 is explained again.

[0088] If the user input interface (230) is equipped with a touchscreen, the user can input commands related to the display device (100) to the remote control device (200) by touching the soft keys on the touchscreen. Additionally, the user input interface (230) may be equipped with various types of input means that the user can operate, such as scroll keys or jog keys, and this embodiment does not limit the scope of the rights of this disclosure.

[0089] The sensor (240) may be equipped with a gyroscope sensor (241) or an accelerometer sensor (243), and the gyroscope sensor (241) may sense information regarding the movement of the remote control device (200).

[0090] For example, the gyroscope sensor (241) can sense information regarding the operation of the remote control device (200) based on the x, y, and z axes, and the accelerometer sensor (243) can sense information regarding the movement speed of the remote control device (200). Meanwhile, the remote control device (200) may further be equipped with a distance measuring sensor to sense the distance to the display (180) of the display device (100).

[0091] The output interface (250) can output a video or audio signal corresponding to the operation of the user input interface (230) or a signal transmitted from the display device (100).

[0092] The user can recognize whether the output interface (250) is operated by the user input interface (230) or whether the display device (100) is controlled.

[0093] For example, the output interface (250) may be equipped with an LED (251) that lights up when the user input interface (230) is operated or when a signal is transmitted or received with the display device (100) through the wireless communication circuit (220), a vibrator (253) that generates vibration, a speaker (255) that outputs sound, or a display (257) that outputs video.

[0094] In addition, the power supply circuit (260) supplies power to the remote control device (200), and can reduce power waste by stopping the power supply when the remote control device (200) does not move for a predetermined period of time.

[0095] The power supply circuit (260) can resume power supply when a predetermined key provided in the remote control device (200) is operated.

[0096] The memory (270) can store various types of programs, application data, etc. required for the control or operation of the remote control device (200).

[0097] When the remote control device (200) transmits and receives signals wirelessly through the RF circuit (221) and the display device (100), the remote control device (200) and the display device (100) transmit and receive signals through a predetermined frequency band.

[0098] The controller (280) of the remote control device (200) can store and refer to information regarding frequency bands, etc., that can wirelessly transmit and receive signals with the display device (100) paired with the remote control device (200) in the memory (270).

[0099] The controller (280) controls all matters related to the control of the remote control device (200). The controller (280) can transmit a signal corresponding to a predetermined key operation of the user input interface (230) or a signal corresponding to the movement of the remote control device (200) sensed by the sensor (240) to the display device (100) through the wireless communication circuit (220).

[0100] In addition, the microphone (290) of the remote control device (200) can acquire voice.

[0101] The microphone (290) may be provided in multiple numbers.

[0102] Next, Figure 4 is explained.

[0103] FIG. 4 shows an example of utilizing a remote control device according to an embodiment of the present disclosure.

[0104] FIG. 4(a) illustrates a pointer (205) corresponding to a remote control device (200) being displayed on a display (180).

[0105] The user can move or rotate the remote control device (200) up and down, left and right. The pointer (205) displayed on the display (180) of the display device (100) corresponds to the movement of the remote control device (200). Since the pointer (205) of the remote control device (200) moves and is displayed according to the movement in 3D space as shown in the drawing, it can be named a spatial remote control.

[0106] FIG. 4(b) illustrates that when the user moves the remote control device (200) to the left, the pointer (205) displayed on the display (180) of the display device (100) also moves to the left in response.

[0107] Information regarding the movement of the remote control device (200) detected through the sensor of the remote control device (200) is transmitted to the display device (100). The display device (100) can calculate the coordinates of the pointer (205) from the information regarding the movement of the remote control device (200). The display device (100) can display the pointer (205) to correspond to the calculated coordinates.

[0108] FIG. 4(c) illustrates a case where, while pressing a specific button within the remote control device (200), the user moves the remote control device (200) away from the display (180). By doing so, the selected area within the display (180) corresponding to the pointer (205) can be zoomed in and enlarged.

[0109] Conversely, when the user moves the remote control device (200) closer to the display (180), the selected area within the display (180) corresponding to the pointer (205) can be zoomed out and reduced in size.

[0110] Meanwhile, when the remote control device (200) moves away from the display (180), the selected area may be zoomed out, and when the remote control device (200) moves closer to the display (180), the selected area may be zoomed in.

[0111] Additionally, when a specific button within the remote control device (200) is pressed, recognition of up-down and left-right movement may be excluded. That is, when the remote control device (200) moves away from or closer to the display (180), up-down, left-right movement is not recognized, and only forward-backward movement is recognized. When the specific button within the remote control device (200) is not pressed, only the pointer (205) moves according to the up-down, left-right movement of the remote control device (200).

[0112] Meanwhile, the movement speed or direction of movement of the pointer (205) can correspond to the movement speed or direction of movement of the remote control device (200).

[0113] Meanwhile, the pointer in this specification refers to an object displayed on the display (180) in response to the operation of the remote control device (200). Accordingly, the pointer (205) can be an object of various shapes other than the arrow shape shown in the drawing. For example, it may be a concept including a point, a cursor, a prompt, a thick outline, etc. Furthermore, the pointer (205) can be displayed corresponding to either a point on the horizontal axis or a vertical axis on the display (180), and it is also possible to display it corresponding to multiple points, such as a line or a surface.

[0114] FIGS. 5a to 5c are drawings illustrating a light-shielding state according to one embodiment of the present disclosure.

[0115] In one embodiment, the light-blocking state of the display (180) may be a state determined by the area of ​​the light-blocking region in which light is blocked among the entire area of ​​the display (180). For example, the light-blocking state may be any one of a full light-blocking state in which the entire area of ​​the display (180) is light-blocked, a partial light-blocking state in which a part of the display (180) is light-blocked, or a non-light-blocking state in which the entire area of ​​the display (180) is not light-blocked.

[0116] A full shading state may be referred to as a first shading state. A partial shading state may be referred to as a second shading state. A non-shading state may be referred to as a transparent state, a light-transmitting state, or a third shading state.

[0117] FIG. 5a may show a full shading state in which the entire area (500) of the display (180) is shading.

[0118] FIG. 5b may show a partial light-blocking state in which a first partial area (501) of the entire area (500) of the display (180) is illuminated and a second partial area (503) is blocked.

[0119] FIG. 5c may show a non-lighting state in which the entire area (500) of the display (180) is illuminated.

[0120] In another embodiment of the present disclosure, the light-blocking state of the display (180) may include the degree of light blocking of the entire area of ​​the display (180) or the degree of light blocking of a part area. The degree of light blocking may be a concept inversely proportional to transparency.

[0121] FIGS. 6a and 6b are drawings illustrating a non-electronic shielding method according to one embodiment of the present disclosure, and FIG. 6c is a drawing illustrating an electronic shielding method according to another embodiment of the present disclosure.

[0122] The light-blocking state of the display (180) can be controlled through a non-electronic light-blocking method or an electronic light-blocking method.

[0123] In one embodiment, a light-blocking film may be provided on one side of the display (180). The light-blocking film can block light transmitted to an area of ​​the display (180).

[0124] The light-shielding film may be either a first-type light-shielding film or a second-type light-shielding film. The first-type light-shielding film may be a non-electronic light-shielding film, and the second-type light-shielding film may be an electronic light-shielding film.

[0125] The first type of light-blocking film may be composed of any one of the following materials: a polymer film, an opaque film, or a fiber film composed of fibers, but this is merely an example.

[0126] The second type of light-shielding film may be an electronic light-shielding film such as a Liquid Crystal Display (LCD) panel.

[0127] In the case of a non-electronic light-blocking method, the size of the light-blocking area of ​​the display (180) can be adjusted according to the physical movement of the first type of light-blocking film.

[0128] In the case of an electronic light-blocking method, the transmittance of the area of ​​the display (180) is electrically controlled so that the light-blocking state of the display (180) can be adjusted. The electronic light-blocking method may be referred to as a liquid crystal shutter method.

[0129] First, I will explain the non-electronic shading method.

[0130] Referring to FIG. 6a, the display device (100) may include a display (180), a side frame (610), and a housing (90). The display (180) may display an image. The side frame (610) may extend along the perimeter of the display (180). The housing (90) may be located below the display (180) and the side frame (610). Alternatively, the housing (90) may be located above, to the left, or below the display (180) and the side frame (610).

[0131] The display (180) may include a first long side (LS1), a second long side (LS2) opposite to the first long side (LS1), a first short side (SS1) adjacent to the first long side (LS1) and the second long side (LS2), and a second short side (SS2) opposite to the first short side (SS1).

[0132] Meanwhile, for the convenience of explanation, the lengths of the first and second long sides (LS1, LS2) are depicted and described as being longer than the lengths of the first and second short sides (SS1, SS2), but it is also possible for the lengths of the first and second long sides (LS1, LS2) to be approximately the same as or longer than the lengths of the first and second short sides (SS1, SS2).

[0133] The direction parallel to the long side (LS1, LS2) of the display (180) can be called the left-right direction. The direction parallel to the short side (SS1, SS2) of the display (180) can be called the up-down direction. The direction perpendicular to the long side (LS1, LS2) and short side (SS1, SS2) of the display (180) can be called the front-back direction.

[0134] The direction in which the display (180) displays an image can be called the front (z), and the opposite direction can be called the rear (-z). The first short side (SS1) can be called the left (x, Le). The second short side (SS2) can be called the right (-x, Ri). The first long side (LS1) can be called the top (y, U). The second long side (LS2) can be called the bottom (-y, D).

[0135] The interior of the housing (90) may be equipped with a sunshade, one or more rollers for moving the sunshade upward, and one or more motors for driving the one or more rollers.

[0136] The first type of light-blocking film can be located at the rear of the rear of the display (180) and can be moved in the up and down direction of the display (180). The first type of light-blocking film can have an area capable of covering the rear of the display (180).

[0137] The first type of light-blocking screen can be placed on the upper surface of the display (180), has the form of a curtain slide, and can be moved up and down.

[0138] The controller (170) of the display device (100) can control the movement of the first type of light-blocking screen by controlling one or more motors provided inside the housing (90).

[0139] Referring to FIG. 6b, a first type of light-blocking film (620) covering the rear of a display (180) is illustrated. The first type of light-blocking film (620) can be withdrawn from or drawn into the housing (90).

[0140] In FIG. 6b, the light-blocking state of the display (180) may be a full light-blocking state.

[0141] Next, the electron shielding method is explained with reference to Fig. 6c.

[0142] Referring to FIG. 6c, a display (180) and a second type of light-blocking film (630) positioned behind the display (180) are shown. The second type of light-blocking film (630) may be a Liquid Crystal Display (LCD) panel.

[0143] The controller (170) of the display device (100) can control the LCD panel (630) to control the transmittance corresponding to a part area or the entire area of ​​the display (180).

[0144] A controller (170) or an image driving circuit (not shown) can transmit a control signal to an LCD panel (630) to control the arrangement of liquid crystal molecules corresponding to an area of ​​the display (180), thereby controlling the transmittance of the area. The image driving circuit may be included in the controller (170) or may be a component provided separately from the controller (170).

[0145] The control signal that controls the arrangement of liquid crystal molecules may be a voltage signal that controls the voltage applied to the liquid crystal layer of the LCD panel (630).

[0146] The LCD panel (630) may include two polarizers, a Thin Film Transistor (TFT), and a liquid crystal layer. Each of the two polarizers may transmit light in one direction and block light in the other direction. The TFT may be a switching element that applies and blocks a voltage signal to the liquid crystal layer to control the arrangement of liquid crystal molecules. The liquid crystal molecules of the liquid crystal layer may be arranged according to the voltage signal received from the TFT. Light may be passed or blocked depending on the arrangement of the liquid crystal molecules.

[0147] After passing through the first polarizer, light can pass through the liquid crystal layer. When the polarization direction of the light changes in the liquid crystal layer, it can pass through the second polarizer. If the polarization direction of the light changes according to the arrangement of the liquid crystal, the amount of light passing through the second polarizer can change. As a result, the transmittance of the LCD panel (630) can be controlled.

[0148] The video driving circuit can control the transmittance of a specific area by applying or blocking voltage only to the pixels of that area through electrodes arranged in a matrix form of the LCD panel (630).

[0149] The display device (100) can create a light-blocking area and a non-light-blocking area by adjusting the transmittance of a specific area of ​​the display (180).

[0150] FIGS. 7a and 7b are drawings illustrating various forms of a display according to an embodiment of the present disclosure.

[0151] Referring to FIG. 7a, a pixel may include a light-emitting region and a transparent region. In the light-emitting region, subpixels of RGBW (Red, Green, Blue, White) may be arranged vertically, and the transparent region, which has no subpixels, may be arranged next to the light-emitting region.

[0152] Accordingly, a display (180) having multiple pixels can not only display an image but also transmit light. The display (180) may be referred to as a transparent display panel or a transparent OLED (Organic Light Emitting Diode) panel.

[0153] Referring to FIG. 7b, a pixel may include a light-emitting region and a transparent region. In the light-emitting region, RGW (Red, Green, White) or BGW (Blue, Green, White) subpixels may be arranged adjacent to each other, and the transparent region, which has no subpixels, may be arranged next to the light-emitting region.

[0154] Accordingly, a display (180) having multiple pixels can not only display an image but also transmit light. The display (180) may be referred to as a transparent display panel or a transparent OLED panel.

[0155] FIG. 8 is a flowchart of a method of operation of a display device according to one embodiment of the present disclosure.

[0156] Referring to FIG. 8, the display device (100) can output a screen that sets an image (hereinafter, background image) corresponding to the background output through the display (180) in operation S810.

[0157] Here, the background image may be an image corresponding to the AOD (Always On Display) function. The background image may be named the AOD image. The AOD function may be a function that outputs an image through the display (180) with minimal power while using other functions minimally in response to the power being off. The background image may include a static image, a dynamic image, or a combination thereof.

[0158] For example, the display (180) may be composed of a transparent display panel. In this case, when the light-blocking state of the display (180) is a non-light-blocking state, the display device (100) may output a background image through the display (180) while the AOD function is in use. Through this, the display device (100) may provide various functions to the user, such as displaying an art image in an open space, even when it is not used to provide video content.

[0159] A screen for setting a background image (hereinafter, background image setting screen) may include a list of images that can be set as background images (hereinafter, candidate list), an area for displaying a preview of an image selected as a candidate for background images (hereinafter, preview area), etc. For example, the preview area may be the remaining area of ​​the background image setting screen excluding the candidate list.

[0160] The candidate list may include a representative image corresponding to each of the videos that can be set as background videos. For example, the representative image may include a thumbnail image of the video, an image corresponding to a frame of the video, etc.

[0161] The display device (100) can generate a candidate list. The candidate list may include at least one of an image already stored in the memory (140) of the display device (100) and an image not stored in the memory (140).

[0162] For example, the display device (100) can receive data regarding images that can be set as background images from an external server through a network interface (133). The data regarding images that can be set as background images may include the names, genres, thumbnail images, etc. of the images that can be set as background images. At this time, the display device (100) can generate a candidate list using an image corresponding to a frame of a video stored in memory (140), a thumbnail image included in the data received from the external server, etc.

[0163] The display device (100) can select a candidate background image from among the images included in the candidate list. For example, the user can select one of the images included in the candidate list displayed on the background image setting screen as a candidate background image by using a pointer (205) corresponding to the remote control device (200). For example, the display device (100) can select a predetermined image that is currently set as the background image from among the images included in the candidate list as a candidate background image in response to the output of the background image setting screen.

[0164] The display device (100) can determine whether the image selected as a candidate for the background image in the S820 operation is an image already stored in memory (140). For example, the image already stored in memory (140) may be an image that the display device (100) previously downloaded from an external server and then stored in memory (140).

[0165] The display device (100) can display the image selected as a candidate for the background image in the preview area when, in operation S830, the image selected as a candidate for the background image is an image already stored in the memory (140). For example, if the image selected as a candidate for the background image is a dynamic image, the image selected as a candidate for the background image can be played in the preview area. At this time, the image displayed in the preview area may change over time.

[0166] In operation S840, if the image selected as a candidate for the background image is an image that is not stored in memory (140), the display device (100) can blur the representative image of the image selected as a candidate for the background image. For example, the display device (100) can enlarge the representative image of the image selected as a candidate for the background image to correspond to the display (180) and then blur it.

[0167] Here, blur processing may refer to a process of applying a blur effect to an image to be processed (hereinafter, target image). For example, a display device (100) may apply a kernel (or filter) to each of a plurality of pixels included in the target image. At this time, the display device (100) may blur the target image by averaging the pixel values ​​of surrounding pixels existing within the kernel to calculate the pixel value of the center pixel. Meanwhile, various types of blur processing, such as Box Blur, Gaussian Blur, and Motion Blur, may be used.

[0168] The display device (100) can display a blurred representative image of an image selected as a candidate for a background image in the preview area during the S850 operation.

[0169] The resolution of the representative image of the video, for example, the thumbnail image, may be lower than the resolution of the display (180). Therefore, if the representative image is displayed as is in the preview area, the quality of the image displayed on the screen may be excessively degraded due to reasons such as the size of the pixels being simply enlarged. On the other hand, if a blurred representative image is displayed in the preview area, a more natural image may be displayed on the screen compared to when the representative image is displayed as is.

[0170] Referring to FIG. 9, the display device (100) can output a predetermined image (900) that is set as a background image through the display (180) while the AOD function is in use. For example, the display device (100) can output a predetermined image (900), which is a static image, as a background image through the display (180).

[0171] Referring to FIG. 10, the display device (100) can output a background image setting screen. The background image setting screen may include a preview area (1010) and a candidate list (1020).

[0172] The candidate list (1020) may include representative images (1021 to 1025) of images that can be set as background images. The first image corresponding to the first representative image (1021), the third image corresponding to the third representative image (1023), and the fourth image corresponding to the fourth representative image (1024) may be images already stored in memory (140). Meanwhile, the second image corresponding to the second representative image (1022) and the fifth image corresponding to the fifth representative image (1025) may be images not stored in memory (140).

[0173] The background image setting screen may further include a predetermined indicator (1030) representing an image not stored in memory (140). The predetermined indicator (1030) may be displayed corresponding to the second representative image (1022) and the fifth representative image (1025), respectively. For example, the predetermined indicator (1030) may be displayed on the representative image corresponding to the image not stored in memory (140).

[0174] A first image corresponding to the first representative image (1021) can be selected as a candidate for the background image. At this time, since the first image is an image already stored in memory (140), the first image can be displayed through the preview area (1010).

[0175] Referring to FIGS. 11a through 11c, if the first image (1110) selected as a candidate for the background image is a dynamic image, the display device (100) can play the first image (1110) in the preview area (1010). The display device (100) can play the first image (1110) in the preview area (1010) from the first playback time. As the first image (1110) which is a dynamic image is played, the image displayed in the preview area (1010) may change over time.

[0176] Meanwhile, referring to FIG. 12, a second image corresponding to the second representative image (1022) can be selected as a candidate for the background image. At this time, since the second image is an image that is not stored in memory (140), the display device (100) can blur the second representative image (1022).

[0177] The display device (100) can display a representative image (1210) of a second image that has been blurred through a preview area (1010).

[0178] FIG. 13 is a flowchart of a method of operation of a display device according to another embodiment of the present disclosure. Detailed descriptions of contents that overlap with those described in FIG. 8 will be omitted.

[0179] Referring to FIG. 13, the display device (100) can output a background image setting screen through the display (180) in operation S1301.

[0180] The display device (100) can determine whether the image selected as a candidate for the background image in operation S1302 is an image already stored in memory (140).

[0181] The display device (100) can display the image selected as a candidate for the background image in the preview area when, in operation S1303, the image selected as a candidate for the background image is an image already stored in the memory (140).

[0182] The display device (100) can determine whether the setting for the background image is completed in operation S1304. For example, the display device (100) can complete the setting for the background image in response to the reception of a user input determining the image selected as a candidate for the background image as the background image. At this time, the image selected as a candidate for the background image can be set as the background image.

[0183] In operation S1305, when the setting for the background image is completed while the image stored in the memory (140) is selected as a candidate for the background image, the display device (100) can continue to display the image displayed in the preview area through the display (180). At this time, the output of the background image setting screen can be terminated as the candidate list is removed from the screen output through the display (180). For example, if a predetermined image set as the background image is a dynamic image, the display device (100) can continue to play the predetermined image through the display (180) from the playback time corresponding to the time when the setting for the background image is completed.

[0184] In operation S1306, if the image selected as a candidate for the background image is an image that is not stored in memory (140), the display device (100) can blur the representative image of the image selected as a candidate for the background image.

[0185] The display device (100) can display a blurred representative image of the image selected as a candidate for the background image in the preview area in operation S1307.

[0186] The display device (100) can determine whether to perform a download for the image selected as a candidate for the background image in operation S1308. For example, the display device (100) can download the image selected as a candidate for the background image from an external server via the network interface (133) in response to receiving a user input determining the image selected as a candidate for the background image as the background image.

[0187] At this time, the display device (100) can store a video downloaded from an external server in memory (140).

[0188] The display device (100) can determine whether the download for the image selected as a candidate for the background image is completed in operation S1309. If the download for the image selected as a candidate for the background image is completed, the display device (100) can set the image selected as a candidate for the background image as the background image.

[0189] In operation S1310, the display device (100) can display a predetermined image set as the background image from the beginning through the display (180) in response to the completion of the download for the image selected as a candidate for the background image. At this time, the output of the background image setting screen may be terminated. For example, if the predetermined image set as the background image is a dynamic image, the display device (100) can play the predetermined image from the first playback point. At this time, the candidate list may be removed from the screen output through the display (180).

[0190] Referring to FIG. 14a and FIG. 14b, if the first image (1110) selected as a candidate for the background image is a dynamic image, the display device (100) can play the first image (1110) in the preview area (1010).

[0191] When the setting for the background image is completed as the first image (1110) displayed in the preview area (1010) is set as the background image, the display device (100) can continue to play the first image (1120) through the display (180). At this time, the first image (1120) can be continued to play from a playback point corresponding to the time when the setting for the background image is completed.

[0192] Referring to FIG. 15a, when a second image that is not stored in memory (140) is selected as a candidate for the background image, a representative image (1210) of the blurred second image can be displayed through the preview area (1010).

[0193] Referring to FIG. 15b, when the setting for the background image is completed as the second image selected as a candidate for the background image is set as the background image, the display device (100) can download the second image from an external server.

[0194] The display device (100) can output a message (1220) corresponding to the download through the display (180) while performing a download of the second image. For example, the message (1220) corresponding to the download can be displayed as a pop-up window on the background image setting screen.

[0195] Referring to FIG. 15c, when the download of the second video is completed, the second video can be set as a background video. At this time, the display device (100) can display the second video (1230) from the beginning through the display (180). For example, if the second video (1230) is a dynamic video, the display device (100) can play the second video (1230) from the first playback point.

[0196] Referring to FIG. 16, the display device (100) can output a background image setting screen through the display (180). At this time, when the download of the second image is completed and the second image is already stored in the memory (140), a predetermined indicator (1030) corresponding to the second representative image (1022) may not be displayed.

[0197] When the second image is selected as a candidate for the background image, the display device (100) can display the second image (1230) in the preview area (1010). At this time, if the second image is a dynamic image, the second image (1230) can be played in the preview area (1010). As the second image (1230), which is a dynamic image, is played, the image displayed in the preview area (1010) can change over time.

[0198] As described above, according to at least one embodiment of the present disclosure, settings related to the output of an image through a transparent display panel can be adjusted according to the light-blocking state of the transparent display panel, thereby improving the visibility of the image.

[0199] In addition, according to at least one embodiment of the present disclosure, settings related to the output of an image through a transparent display panel can be adjusted according to ambient illumination, thereby improving the visibility of the image to suit the surrounding environment.

[0200] In addition, according to at least one embodiment of the present disclosure, settings related to the output of an image through a transparent display panel can be dynamically adjusted depending on whether light is blocked for each area of ​​the transparent display panel.

[0201] Referring to FIGS. 1 through 16, a display device (100) according to one aspect of the present disclosure comprises a display (180); a memory (140); and a controller (170). The controller (170) outputs a predetermined screen that sets an image corresponding to a background through the display (180). When a predetermined image selected as a candidate for the image corresponding to the background is stored in the memory (140), the predetermined image is displayed in a preview area of ​​the predetermined screen. When the predetermined image is not stored in the memory (140), a representative image of the predetermined image is blurred, and the blurred representative image is displayed in the preview area.

[0202] Additionally, according to one aspect of the present disclosure, the controller (170) can enlarge a representative image of the predetermined image to correspond to the display (180) and then blur it.

[0203] In addition, according to one aspect of the present disclosure, the image corresponding to the background may correspond to an Always On Display (AOD) function.

[0204] In addition, according to one aspect of the present disclosure, the representative image of the predetermined image may be a thumbnail image.

[0205] Additionally, according to one aspect of the present disclosure, the controller (170) can play the predetermined image in the preview area from the first playback time when the predetermined image is stored in the memory (140).

[0206] Additionally, according to one aspect of the present disclosure, the controller (170) may terminate the output of the predetermined screen when the setting for the background image is completed while the predetermined image is being played in the preview area, and may continue to play the predetermined image through the display (180) from a predetermined playback time corresponding to the completion of the setting for the background image.

[0207] Additionally, according to one aspect of the present disclosure, the system further includes a network interface (133) that communicates with an external server, and the controller (170) receives data from the external server regarding images that can be set as images corresponding to the background through the network interface (133) in response to the output of the predetermined screen, and the data received from the external server may include a representative image of the predetermined image.

[0208] Additionally, according to one aspect of the present disclosure, the system further includes a network interface (133) that communicates with an external server, and the controller (170) can download the predetermined image from the external server when the predetermined image is determined to be an image corresponding to the background when the predetermined image is not stored in the memory (140), and in response to the completion of the download of the predetermined image, terminate the output of the predetermined screen and output the downloaded predetermined image through the display (180) from the initial playback time.

[0209] Additionally, according to one aspect of the present disclosure, the predetermined screen may include a candidate list comprising representative images of images that can be set as images corresponding to the background.

[0210] Additionally, according to one aspect of the present disclosure, the predetermined screen may include an indicator displayed on a representative image of an image that is not stored in the memory (140) among the representative images included in the candidate list.

[0211] A method of operation of a display device (100) according to one aspect of the present disclosure may include: an operation of outputting a predetermined screen that sets an image corresponding to a background through a display (180); an operation of displaying the predetermined image in a preview area of ​​the predetermined screen when the predetermined image selected as a candidate for the image corresponding to the background is stored in a memory (140); an operation of blurring a representative image of the predetermined image when the predetermined image is not stored in the memory (140); and an operation of displaying the blurred representative image in the preview area.

[0212] Additionally, according to one aspect of the present disclosure, the operation of blurring a representative image of the predetermined image may include the operation of enlarging the representative image of the predetermined image to correspond to the display (180) and then blurring it.

[0213] In addition, according to one aspect of the present disclosure, the image corresponding to the background may correspond to an Always On Display (AOD) function.

[0214] In addition, according to one aspect of the present disclosure, the representative image of the predetermined image may be a thumbnail image.

[0215] Additionally, according to one aspect of the present disclosure, the operation of displaying the predetermined image in the preview area may include the operation of playing the predetermined image in the preview area from the first playback time.

[0216] Additionally, according to one aspect of the present disclosure, when the setting for the background image is completed while the predetermined image is being played in the preview area, the operation of terminating the output of the predetermined screen; and the operation of continuing to play the predetermined image through the display (180) from a predetermined playback time corresponding to the completion of the setting for the background image may further include.

[0217] Additionally, according to one aspect of the present disclosure, in response to the output of the predetermined screen, the method further includes receiving data from an external server for images that can be set as images corresponding to the background through a network interface (133), and the data received from the external server may include a representative image of the predetermined image.

[0218] Additionally, according to one aspect of the present disclosure, when the predetermined image not stored in the memory (140) is determined to be an image corresponding to the background, the method may further include: an operation of downloading the predetermined image from the external server; an operation of terminating the output of the predetermined screen in response to the completion of the download of the predetermined image; and an operation of outputting the predetermined image that has been downloaded through the display (180) from the first playback time.

[0219] Additionally, according to one aspect of the present disclosure, the predetermined screen may include a candidate list comprising representative images of images that can be set as images corresponding to the background.

[0220] Additionally, according to one aspect of the present disclosure, the predetermined screen may include an indicator displayed on a representative image of an image that is not stored in the memory (140) among the representative images included in the candidate list.

[0221] The attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings and should be understood to include all modifications, equivalents, and substitutions that fall within the concept and technical scope of this disclosure.

[0222] Meanwhile, the method of operation of the present disclosure can be implemented as processor-readable code on a processor-readable recording medium. A processor-readable recording medium includes all types of recording devices in which data that can be read by a processor is stored. Examples of processor-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc., and also include implementation in the form of a carrier wave, such as transmission over the Internet. Furthermore, the processor-readable recording medium may be distributed across networked computer systems, so that processor-readable code can be stored and executed in a distributed manner.

[0223] Furthermore, 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. It is understood that various modifications can be made by those skilled in the art without departing from the essence of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present disclosure.

Claims

1. Display; Memory; and Includes a controller, The above controller is, A predetermined screen for setting an image corresponding to the background is output through the above display, and When a predetermined image selected as a candidate image corresponding to the above background is stored in the memory, the predetermined image is displayed in the preview area of ​​the predetermined screen, and If the above predetermined image is not stored in the memory, a representative image of the above predetermined image is blurred, and A display device characterized by displaying the above-described blurred representative image in the above-described preview area.

2. In Paragraph 1, The above controller is, A display device characterized by enlarging a representative image of the above-mentioned predetermined image to correspond to the display and then blurring it.

3. In Paragraph 1, A display device characterized in that the image corresponding to the above background corresponds to the AOD (Always On Display) function.

4. In Paragraph 1, A display device characterized in that the representative image of the above-mentioned predetermined image is a thumbnail image.

5. In Paragraph 1, The above controller, in the case where the above predetermined image is stored in the memory, A display device characterized by playing the above-mentioned predetermined image in the above-mentioned preview area from the first playback point.

6. In Paragraph 5, The above controller is, When the setting for the background image is completed while the above predetermined image is being played in the above preview area, the output of the above predetermined screen is terminated, and A display device characterized by playing the predetermined image through the display, starting from a predetermined playback point corresponding to the completion of the setting for the background image.

7. In Paragraph 1, It further includes a network interface that communicates with an external server, The above controller is, In response to the output of the above-mentioned predetermined screen, data regarding images that can be set as images corresponding to the background is received from the external server through the network interface, and A display device characterized in that the data received from the above external server includes a representative image of the above predetermined image.

8. In Paragraph 1, It further includes a network interface that communicates with an external server, The above controller, in the case where the above predetermined image is not stored in the memory, If the above predetermined image is determined to be an image corresponding to the background, the above predetermined image is downloaded from the external server, and In response to the completion of the download for the above-mentioned predetermined image, the output of the above-mentioned predetermined screen is terminated, and A display device characterized by outputting the predetermined video, which has been downloaded, from the first playback point through the above display.

9. In Paragraph 1, The above predetermined screen is, A display device characterized by including a candidate list containing representative images of images that can be set as images corresponding to the above background.

10. In Paragraph 9, The above predetermined screen is, A display device characterized by including an indicator displayed on a representative image of an image not stored in the memory among the representative images included in the above candidate list.

11. An operation of outputting a predetermined screen through a display that sets an image corresponding to the background; When a predetermined image selected as a candidate image corresponding to the above background is stored in memory, the operation of displaying the predetermined image in the preview area of ​​the predetermined screen; and If the above predetermined image is not stored in the memory, the operation of blurring a representative image of the above predetermined image; and A method of operation of a display device including the operation of displaying the above-described blurred representative image in the above-described preview area.

12. In Paragraph 11, The operation of blurring a representative image of the above-mentioned predetermined image is, A method of operation of a display device characterized by including the operation of enlarging a representative image of the above-mentioned predetermined image to correspond to the display and then blurring it.

13. In Paragraph 11, A method of operation of a display device characterized in that the image corresponding to the above background corresponds to the AOD (Always On Display) function.

14. In Paragraph 11, A method of operation of a display device characterized in that the representative image of the above-mentioned predetermined image is a thumbnail image.

15. In Paragraph 11, The operation of displaying the above-mentioned predetermined image in the above-mentioned preview area is, A method of operation of a display device characterized by including the operation of playing the above-mentioned predetermined image in the above-mentioned preview area from the first playback point.

16. In Paragraph 15, An operation to terminate the output of the predetermined screen when the setting for the background image is completed while the predetermined image is being played in the preview area; and A method of operation of a display device characterized by further including the operation of playing the predetermined image through the display, starting from a predetermined playback point corresponding to the completion of the setting for the background image.

17. In Paragraph 11, In response to the output of the above-mentioned predetermined screen, the method further includes the operation of receiving data from an external server via a network interface for images that can be set as images corresponding to the background. A method of operation of a display device characterized in that the data received from the above external server includes a representative image of the above predetermined image.

18. In Paragraph 11, If the predetermined image not stored in the memory is determined to be an image corresponding to the background, the operation of downloading the predetermined image from the external server; An operation to terminate the output of the predetermined screen in response to the completion of the download of the predetermined image; and A method of operation of a display device characterized by further including the operation of outputting the predetermined video, which has been downloaded, from the first playback point through the above display.

19. In Paragraph 11, The above predetermined screen is, A method of operation of a display device characterized by including a candidate list containing representative images of images that can be set as images corresponding to the above background.

20. In Paragraph 11, The above predetermined screen is, A method of operation of a display device characterized by including an indicator displayed on a representative image of an image not stored in the memory among representative images included in the above candidate list.

Images