Display device and operation method thereof

Abstract

A display device according to an embodiment of the present disclosure may comprise: a display for displaying a search screen including an input field, and a first input window indicating a virtual keyboard input window; and a controller to which an external device is connected, and which switches, according to the reception of an input signal from the external device, the first input window to a second input window that includes one or more recommendation keywords.

Description

Display device and method of operation thereof

[0001] The present disclosure relates to a display device, and more particularly, to a display device that changes the shape of an input window according to a signal received from a text input device.

[0002] Digital TV services utilizing wired or wireless networks are becoming more widespread. Digital TV services can offer a variety of services not available with existing analog broadcasting services.

[0003] For example, IPTV (Internet Protocol Television), a type of digital TV service, and smart TV services offer interactivity, allowing users to actively choose the type of program they want to watch and when. Building on this interactivity, IPTV and smart TV services can also offer a variety of additional services, such as internet search, home shopping, and online games.

[0004] A conventional TV displays a virtual keyboard input window and receives input for virtual keys included in the virtual keyboard input window based on input signals received from an external device such as a text input device.

[0005] That is, conventional TVs only initiate a configuration in which the virtual keyboard input window disappears within the screen when a text input device is connected, which limits the input usability of the text input device.

[0006] The purpose of the present disclosure is to automatically hide the virtual keyboard input window and provide recommended keywords when a user inputs a physical keyboard while the virtual keyboard input window is activated on the screen.

[0007] The purpose of the present disclosure is to provide recommended keywords instead of a virtual keyboard input window when receiving text input from a text input device, thereby enabling automatic input of search words into an input field.

[0008] A display device according to an embodiment of the present disclosure may include a display that displays a search screen including an input field and a first input window representing a virtual keyboard input window, and a controller that switches the first input window to a second input window including one or more recommended keywords upon receiving an input signal from the external device, to which the external device is connected.

[0009] A method of operating a display device according to an embodiment of the present disclosure may include the steps of displaying a first input window representing a search screen including an input field and a virtual keyboard input window, receiving an input signal from the external device, and switching the first input window to a second input window including one or more recommended keywords.

[0010] According to embodiments of the present disclosure, a user can receive multiple recommended keywords with a simple keystroke, and easily select any one of the multiple recommended keywords. This eliminates the need for separate keystrokes in the input field, significantly improving search convenience.

[0011]

[0012]

[0013] Figure 1 is a block diagram illustrating the configuration of a display device according to one embodiment of the present invention.

[0014] FIG. 2 is a drawing illustrating an input system according to one embodiment of the present disclosure.

[0015] FIG. 3 is a flowchart illustrating an operating method of a display device according to an embodiment of the present disclosure.

[0016] FIG. 4A is a diagram illustrating an example of switching a first input window to a second input window based on an input signal received from a text input device according to one embodiment of the present invention.

[0017] FIG. 4b is a diagram illustrating an example of re-switching a second input window to a first input window based on an input signal received from a text input device according to one embodiment of the present invention.

[0018] FIG. 4c is a diagram illustrating an example of switching a first input window to a third input window based on an input signal received from a text input device according to one embodiment of the present invention.

[0019] FIG. 5A and FIG. 5B are drawings illustrating an example in which the transparency of a first input window is adjusted according to the number of characters entered in an input field according to one embodiment of the present disclosure.

[0020] Figures 6a and 6b are drawings explaining that recommended keywords change depending on the type of input field.

[0021] Hereinafter, embodiments related to the present invention will be described in more detail with reference to the drawings. The suffixes "module" and "part" used in the following description for components are assigned or used interchangeably solely for the convenience of writing the specification, and do not in themselves have distinct meanings or roles.

[0022] A display device according to an embodiment of the present invention is, for example, an intelligent display device that adds computer-assisted functionality to its broadcast reception function. While faithfully performing the broadcast reception function, it can also be equipped with Internet functionality and other features, providing a more user-friendly interface, such as a manual input device, touch screen, or space remote control. Furthermore, with support for wired or wireless Internet functionality, it can connect to the Internet and a computer, enabling functions such as email, web browsing, banking, or gaming. A standardized, general-purpose operating system can be used for these various functions.

[0023] Accordingly, the display device described in the present invention can perform various user-friendly functions, for example, by allowing various applications to be freely added or deleted on a general-purpose operating system kernel. More specifically, the display device can be a network TV, HBB TV, smart TV, LED TV, OLED TV, etc., and in some cases, it can also be applied to smartphones.

[0024] FIG. 1 is a block diagram illustrating the configuration of a display device according to one embodiment of the present invention.

[0025] Referring to FIG. 1, the display device (100) may include a broadcast receiving unit (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).

[0026] The broadcast receiving unit (130) may include a tuner (131), a demodulator (132), and a network interface (133).

[0027] The tuner (131) can select a specific broadcast channel according to a channel selection command. The tuner (131) can receive a broadcast signal for the selected specific broadcast channel.

[0028] 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.

[0029] 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).

[0030] The external device interface (135) can provide a connection path between the display device (100) and the external device. The external device interface (135) can receive one or more of images and audio output from an external device connected wirelessly or wiredly to the display device (100) and transmit them to the controller (170). The external device interface (135) can include a plurality of external input terminals. The plurality of external input terminals can include an RGB terminal, one or more HDMI (High Definition Multimedia Interface) terminals, and a component terminal.

[0031] A video signal of an external device input through an external device interface (135) can be output through a display (180). A voice signal of an external device input through an external device interface (135) can be output through a speaker (185).

[0032] An external device that can be connected to the external device interface (135) may be any one of a set-top box, a Blu-ray player, a DVD player, a game console, a sound bar, a smartphone, a PC, a USB memory, and a home theater, but this is only an example.

[0033] The network interface (133) may provide an interface for connecting the display device (100) to a wired / wireless network including the Internet. The network interface (133) may transmit or receive data to or from other users or other electronic devices via the connected network or another network linked to the connected network.

[0034] Additionally, some content data stored in the display device (100) can be transmitted to a selected user or electronic device among other users or other electronic devices pre-registered in the display device (100).

[0035] The network interface (133) can access a predetermined web page through a connected network or another network linked to the connected network. That is, by accessing a predetermined web page through a network, data can be transmitted or received with the corresponding server.

[0036] In addition, 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, etc. and information related thereto provided from a content provider or network provider via a network.

[0037] Additionally, the network interface (133) can receive firmware update information and update files provided by the network operator, and transmit data to the Internet or content provider or network operator.

[0038] The network interface (133) can select and receive a desired application from among applications open to the public via a network.

[0039] The memory (140) stores a program for each signal processing and control within the controller (170), and can store signal-processed image, voice, or data signals.

[0040] In addition, the memory (140) may perform a function for temporary storage of video, audio, or data signals input from an external device interface (135) or a network interface (133), and may store information about a specific image through a channel memory function.

[0041] The memory (140) can store an application or a list of applications input from an external device interface (135) or a network interface (133).

[0042] The display device (100) can play content files (video files, still image files, music files, document files, application files, etc.) stored in the memory (140) and provide them to the user.

[0043] 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 control signals from the controller (170) to be transmitted to the remote control device (200).

[0044] In addition, the user input interface (150) can transmit control signals input from local keys (not shown) such as a power key, channel key, volume key, and setting value to the controller (170).

[0045] An image signal processed by the controller (170) can be input to the display (180) and displayed as an image corresponding to the image signal. In addition, an image signal processed by the controller (170) can be input to an external output device through an external device interface (135).

[0046] The voice signal processed by the controller (170) can be output as audio to the speaker (185). In addition, the voice signal processed by the controller (170) can be input to an external output device through the external device interface (135).

[0047] In addition, the controller (170) can control the overall operation within the display device (100).

[0048] In addition, the controller (170) can control the display device (100) by a user command or internal program input through the user input interface (150), and can connect to a network to enable the user to download a desired application or application list into the display device (100).

[0049] The controller (170) enables the user-selected channel information, etc. to be output through a display (180) or speaker (185) together with processed video or audio signals.

[0050] In addition, the controller (170) allows a video signal or audio signal from an external device, for example, a camera or camcorder, input through the external device interface (135) to be output through the display (180) or speaker (185) in accordance with an external device video playback command received through the user input interface (150).

[0051] Meanwhile, the controller (170) can control the display (180) to display an image, for example, a broadcast image input through a tuner (131), an external input image input through an external device interface (135), an image input through a network interface, or an image stored in a memory (140) can be controlled to be displayed on the display (180). In this case, the image displayed on the display (180) can be a still image or a moving image, and can be a 2D image or a 3D image.

[0052] In addition, the controller (170) can control the playback of content stored in the display device (100), received broadcast content, or external input content input from outside, and the content can be in various forms such as broadcast video, external input video, audio file, still image, connected web screen, and document file.

[0053] The wireless communication interface (173) can communicate with an external device through wired or wireless communication. The wireless communication interface (173) can perform short-range communication with the external device. To this end, the wireless communication interface (173) can support short-range communication using at least one of Bluetooth™, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technologies. This 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 in which the display device (100, or an external server) is located via a short-range wireless communication network (Wireless Area Network). The short-range wireless communication network can be a short-range wireless personal area network (Wireless Personal Area Network).

[0054] Here, the other display device (100) may be a wearable device (e.g., a smartwatch, smart glasses, a head-mounted display (HMD)) or a mobile terminal such as a smart phone that can exchange data with (or be linked to) the display device (100) according to the present invention. The wireless communication interface (173) may detect (or recognize) a wearable device capable of communication around the display device (100).

[0055] Furthermore, if the detected wearable device is a device certified to communicate with the display device (100) according to the present invention, the controller (170) can transmit at least a portion of the data processed in the display device (100) to the wearable device via the wireless communication interface (173). Accordingly, a user of the wearable device can utilize the data processed in the display device (100) via the wearable device.

[0056] The display (180) can generate a driving signal by converting a video signal, data signal, OSD signal processed by the controller (170) or a video signal, data signal, etc. received from an external device interface (135) into R, G, and B signals, respectively.

[0057] Meanwhile, since the display device (100) illustrated in FIG. 1 is merely an embodiment of the present invention, some of the illustrated components may be integrated, added, or omitted depending on the specifications of the display device (100) actually implemented.

[0058] That is, two or more components may be combined into a single component, or a single component may be subdivided into two or more components, as needed. Furthermore, the functions performed by each block are intended to illustrate embodiments of the present invention, and their specific operations or devices do not limit the scope of the present invention.

[0059] According to another embodiment of the present invention, the display device (100) may receive and play back an image through a network interface (133) or an external device interface (135) without having a tuner (131) and a demodulator (132), unlike that shown in FIG. 1.

[0060] For example, the display device (100) may be implemented separately as an image processing device, such as a set-top box, for receiving broadcast signals or contents according to various network services, and a content playback device for playing contents input from the image processing device.

[0061] In this case, the operating method of the display device according to the embodiment of the present invention to be described below may be performed by any one of the display device (100) described with reference to FIG. 1, as well as an image processing device such as the separated set-top box, or a content playback device having a display (180) and a speaker (185).

[0062] FIG. 2 is a drawing illustrating an input system according to one embodiment of the present disclosure.

[0063] Referring to FIG. 2, the input system (20) may include a display device (100) and a text input device (200).

[0064] The display device (100) can be connected to an external device, and the external device can be a text input device (200).

[0065] A text input device (200) can transmit an input signal for text input to a display device (100).

[0066] The text input device (200) may be an input device capable of inputting text, such as a keyboard or remote control.

[0067] The text input device (200) can transmit an input signal to the display device (100) via wired or wireless communication.

[0068] The text input device (200) can be connected via the external device interface (135) of the display device (100).

[0069] The text input device (200) can be connected to the display device (100) via a user input interface (150) or a wireless communication interface (173).

[0070] FIG. 3 is a flowchart illustrating an operating method of a display device according to an embodiment of the present disclosure.

[0071] The controller (170) of the display device (100) displays a first input window on the display (180) on a screen including an input field (S301).

[0072] In one embodiment, the screen may be a search screen.

[0073] For example, a search screen may be a screen of a website that provides a search function.

[0074] As another example, the search screen may be the launch screen of an application that provides a search function.

[0075] The input field may be a field for entering a search term. The input field may be a search window that displays characters based on a signal received from a text input device (200).

[0076] The first input window may be a virtual keyboard input window. The virtual keyboard input window may include a plurality of virtual keys for key input.

[0077] The controller (170) can determine whether an input signal is received from the text input device (200) (S303).

[0078] In one embodiment, the input signal may be an input signal for entering text or characters into an input field on a screen. The input signal may be a key input signal for selecting one of a plurality of virtual keys included in a first input window.

[0079] Upon connection with the text input device (200), the first key input signal may be used as a trigger to cause the first input window to disappear. Accordingly, the character corresponding to the first key input signal may not be displayed in the input field.

[0080] That is, the controller (170) can recognize the first key input corresponding to the first key input after the text input device (200) is connected as a trigger for making the first input window disappear.

[0081] In another embodiment, the input signal may be a connection signal indicating that the text input device (200) is connected to the display device (100). The input signal may be a detection signal indicating that the text input device (200) is connected to the display device (100).

[0082] If the controller (170) determines that an input signal has been received from the text input device (200), it can switch the first input window to a second input window including one or more recommended keywords (S305).

[0083] The controller (170) can make the first input window disappear and display the second input window on the display (180) based on determining that an input signal has been received from the text input device (200).

[0084] The second input window may be displayed at the location where the first input window is displayed, or may be displayed at a location different from the location where the first input window is displayed.

[0085] The second input window may contain one or more suggested keywords.

[0086] In one embodiment, the recommended keyword may be a keyword including characters indicated by an input signal received from a text input device (200).

[0087] In another embodiment, the recommended keyword may be a keyword stored in the memory (140) of the display device (100). Specifically, the recommended keyword may be a keyword generated based on the user's log data.

[0088] A user's log data may include one or more of the user's search history, such as frequently searched words, the user's viewing history, and the user's preferred genres.

[0089] One or more recommended keywords included in the second input window may include keywords that are searched for by the user with a certain frequency or higher.

[0090] One or more recommended keywords included in the second input window may be selected via a preset key among a plurality of virtual keys provided in the text input device (200). The preset key may be a special key included in the plurality of virtual keys, but this is merely an example. Each of the one or more recommended keywords may be matched to a preset virtual key.

[0091] In another embodiment, the recommended keywords may vary depending on the type of the input field. The input field type may be any of a text type, a URL type, an email type, or a phone number type.

[0092] The controller (170) can switch the second input window to the first input window upon receiving a command (S307).

[0093] In one embodiment, the second input window may include an icon in the form of a keyboard, and the controller (170) may switch the second input window to the first input window in response to a command to select the icon.

[0094] In another embodiment, the controller (170) may switch the second input window to the first input window in response to a command to delete all characters entered in the input field.

[0095] FIG. 4A is a diagram illustrating an example of switching a first input window to a second input window based on an input signal received from a text input device according to one embodiment of the present invention.

[0096] Referring to FIG. 4a, a search screen (400) of a website for searching is illustrated.

[0097] The search screen (400) can be displayed on the display (180) of the display device (100).

[0098] The search screen (400) may include an input field (410) and a first input window (430). The search screen (400) may further include content of the connected website.

[0099] The first input window (430) may be a virtual keyboard input window including a plurality of virtual keys. The plurality of virtual keys may correspond to a plurality of keys provided on a physical keyboard.

[0100] The controller (170) can switch the first input window (430) to the second input window (450) based on an input signal received from the text input device (200) while displaying the first input window (430). Here, the input signal may be a signal for selecting a virtual key included in the first input window (430). According to the signal for selecting a virtual key, on the input field (410) The character may be displayed.

[0101] The controller (170) can switch the first input window (430) to the second input window (450) based on receiving a signal for selecting a virtual key from the text input device (200).

[0102] The size of the area occupied by the second input window (450) may be smaller than the size of the area occupied by the first input window (430).

[0103] The second input window (450) may include a plurality of recommended keywords (451 to 456).

[0104] In one embodiment, each of the plurality of recommended keywords (451 to 456) may be a keyword starting with the letter a displayed in the input field (410).

[0105] A special key identifier corresponding to a special key may be displayed on one side of each of the plurality of recommended keywords (451 to 456). For example, a special key identifier called F1 (451a) may be displayed on one side of the first recommended keyword (451). F1 (451a) may be an identifier for selecting the first recommended keyword (451).

[0106] The user can select the first recommended keyword (451) by selecting the F1 key among the multiple keys provided in the text input device (200).

[0107] The controller (170) can select a first recommended keyword (451) upon receiving a selection signal for selecting the F1 key from the text input device (200). The controller (170) can automatically display the selected first recommended keyword (451) in the input field (410). The controller (170) can display search results for the first recommended keyword (451) on the display (180) according to a search command.

[0108] As another example, the controller (170) may display the first recommended keyword (451) in the input field (410) according to a signal for selecting the first recommended keyword (451), and then perform a search for the first recommended keyword (451).

[0109] Special keys may be, but are not limited to, F1 to FN, and may also be regular number keys or letter keys.

[0110] In this way, according to an embodiment of the present disclosure, a user can be provided with a plurality of recommended keywords with a simple key input operation, and can easily select any one of the plurality of recommended keywords.

[0111] Accordingly, the convenience of searching can be greatly improved as there is no need to perform separate keystrokes in the input field.

[0112] Additionally, when a key is input through a text input device (200), the size of the first input window (410) is reduced, so that the area of ​​the search screen (400) that can be recognized by the user can be expanded.

[0113] Meanwhile, the first input window (450) may further include special virtual keys for special actions in addition to the recommended keywords (451 to 456). The special possible keys may include a voice recognition key for activating voice recognition.

[0114] FIG. 4b is a diagram illustrating an example of re-switching a second input window to a first input window based on an input signal received from a text input device according to one embodiment of the present invention.

[0115] Referring to FIG. 4b, the controller (170) may display an icon (460) on the search screen (400) in addition to the second input window (450). The icon (460) may be an item for re-switching the second input window (450) back to the first input window (430). The icon (460) may have a keyboard shape, but this is merely an example.

[0116] The icon (460) may be displayed on one side of the second input window (450) or may be displayed as included in the second input window (450).

[0117] The controller (170) can switch the second input window (450) back to the first input window (430) based on a command to select the keyboard icon (460).

[0118] A specific key provided in the text input device (200) may be assigned to the icon (460). When the controller (170) receives a command to select a specific key from the text input device (200), the controller (170) may determine that the icon (460) has been selected. Based on the selection of the icon (460), the controller (170) may switch the second input window (450) to the first input window (430).

[0119] In another embodiment, the controller (170) may switch the second input window (450) to the first input window (430) upon receiving a command to select a specific key included in the second input window (450).

[0120] FIG. 4c is a diagram illustrating an example of switching a first input window to a third input window based on an input signal received from a text input device according to one embodiment of the present invention.

[0121] Referring to FIG. 4c, the controller (170) can switch the first input window (430) to the third input window (470) based on receiving a signal for selecting a virtual key from the text input device (200).

[0122] The third input window (470) may also be a virtual keyboard input window, but may have fewer virtual keys than the first input window (430).

[0123] The size of the area occupied by the third input window (470) may be larger than the size of the area occupied by the second input window (450) and smaller than the size of the area occupied by the first input window (430).

[0124] Additionally, when a key is input through a text input device (200), the function of the first input window (410) is reduced, so that the area of ​​the search screen (400) that the user can perceive can be expanded.

[0125] Meanwhile, the controller (170) can further display an icon (460) included in one side of the third input window (470) or in the third input window (470).

[0126] The controller (170) can switch the third input window (470) back to the first input window (430) upon receiving a command to select an icon (460) from the text input device (200).

[0127] FIG. 5A and FIG. 5B are drawings illustrating an example in which the transparency of a first input window is adjusted according to the number of characters entered in an input field according to one embodiment of the present disclosure.

[0128] The controller (170) can increase the transparency of the first input window (430) as the number of characters input increases based on an input signal received from the text input device (200).

[0129] Referring to FIG. 5a, the controller (170) can adjust the transparency of the first input window (430) to 25% based on a first input signal for entering a first character received from the text input device (200).

[0130] The controller (170) can adjust the transparency of the first input window (430) to 50% based on a second input signal for entering a second character received from the text input device (200).

[0131] The controller (170) can adjust the transparency of the first input window (430) to 75% based on a third input signal for entering a third character received from the text input device (200).

[0132] The controller (170) can adjust the transparency of the first input window (430) to 100% based on a fourth input signal for entering the fourth character received from the text input device (200). The controller (170) can adjust the transparency of the first input window (430) to 100% and simultaneously display the second input window (450) on the display (180).

[0133] As another example, the controller (170) may not display the second input window (450) while adjusting the transparency of the first input window (430) to 100%, as illustrated in FIG. 5b. Accordingly, the content (510) of the search screen (400) that was hidden by the first input window (430) may be exposed.

[0134] Meanwhile, when the controller (170) receives an input signal for deleting characters entered into the input field (410) from the text input device (200) while the first input window (430) has disappeared, as shown in FIG. 5b, the controller (170) can reduce the transparency of the first input window (430). When all characters entered into the input field (410) have been deleted, the controller (170) can adjust the transparency of the first input window (430) to 0%.

[0135] Figures 6a and 6b are drawings explaining that recommended keywords change depending on the type of input field.

[0136] Referring to FIG. 6a, the controller (170) can display a second input window (610) on the search screen (400) based on an input signal received from the text input device (200).

[0137] The type of the input field (410) in FIG. 6a may be an email type used to input an email address.

[0138] If the type of the input field (410) is an email type, the second input window (610) may include a plurality of email domains (611, 613, 615) that identify the domain of the email address.

[0139] Each of the multiple domains (611, 613, 615) may be assigned a specific number. The controller (170) may select a corresponding domain based on an input signal selecting a specific number received from the text input device (200). Characters corresponding to the selected domain may be entered into the input field (410).

[0140] The type of the input field (410) in FIG. 6b may be a URL type used to input a URL (Uniform Resource Locator).

[0141] Multiple domains (611, 613, 615) may have different forms depending on the country.

[0142] If the type of the input field (410) is a URL type, the second input window (610) may include a plurality of web domains (631, 633, 635, 637) that identify the domain of the website.

[0143] Each of the multiple web domains (631, 633, 635, 637) may be assigned a specific number. The controller (170) may select the corresponding domain based on an input signal selecting a specific number received from the text input device (200). Characters corresponding to the selected domain may be entered into the input field (410).

[0144] Multiple web domains (631, 633, 635, 637) may vary in form from country to country.

[0145] According to one embodiment of the present invention, the above-described method can be implemented as processor-readable code on a medium in which a program is recorded. Examples of processor-readable media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices.

[0146] The display device described above is not limited to the configuration and method of the embodiments described above, and the embodiments may be configured by selectively combining all or part of each embodiment so that various modifications can be made.

Claims

1. In the display device, A display showing a search screen including an input field and a first input window representing a virtual keyboard input window; and A controller including a first input window that switches to a second input window that includes one or more recommended keywords when the external device is connected and an input signal is received from the external device. Display device.

2. In paragraph 1, The above input signal is A signal to enter text into the input field of the above search screen. Display device.

3. In paragraph 2, The above controller Switching the first input window to the second input window without displaying the text according to the input signal Display device.

4. In paragraph 1, The above input signal is A signal indicating that the above external device is connected to the above display device. Display device.

5. In paragraph 1, Each of the above one or more recommended keywords is matched with a preset key, The above controller Select a matching recommended keyword based on the selection of the above preset key, and display the selected recommended keyword on the input field. Display device.

6. In paragraph 2, The above controller Adjusting the transparency of the first input window according to the input signal received from the external device. Display device.

7. In paragraph 6, The above controller As the number of the text increases according to the input signal, the transparency of the first input window increases. Display device.

8. In paragraph 1, The above controller Switching the second input window to the first input window upon receiving a command to select a specific key included in the second input window. Display device.

9. In paragraph 1, Each of the above one or more recommended keywords A keyword that contains the character indicated by the above input signal Display device.

10. In paragraph 1, Each of the above one or more recommended keywords A keyword based on the user's log data, and the log data is data based on one of the user's search history and viewing history. Display device.

11. In paragraph 1, Each of the above one or more recommended keywords Depending on the type of the above input field Display device.

12. In paragraph 11, The above type of the above input field is One of the following types: URL type, email type, phone number type, or text type Display device.

13. In paragraph 1, The size of the area occupied by the second input window is smaller than the size of the area occupied by the first input window. Display device.

14. In paragraph 1, Further comprising an external device interface for receiving the input signal from the external device. Display device.

15. In the method of operating a display device, A step of displaying a first input window representing a search screen including an input field and a virtual keyboard input window; A step of receiving an input signal from the external device; and comprising a step of switching the first input window to a second input window containing one or more recommended keywords; How the display device operates.

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