Display device and control method thereof

Abstract

The present disclosure relates to a display device and a control method thereof. The display device includes: a display; a communication unit including a circuit for communicating with an electronic device; and a processor, if a video for mirroring is received from the electronic device through the communication unit, then the processor determines whether the received video includes a blank area for mirroring, and if it is determined that the video including the blank area is received in a state where the display is configured in a preset direction, then the processor displays the video of the remaining area of ​​the received video except the blank area on the display configured in the preset direction.

Description

Technical Field

[0001] The present disclosure relates to a display device and a control method thereof, and more particularly, to a display device capable of mirroring a video being displayed in an electronic device and a control method thereof. Background Art

[0002] Recently, with the development of electronic technology, various electronic devices have been developed. In particular, electronic devices supporting mirroring services are being developed recently.

[0003] Mirroring service means a service that displays (or shares) a video being displayed on a display of an electronic device on a display of another electronic device. Through the mirroring service, a user can enjoy the video being displayed on a display of an electronic device such as a notebook, tablet computer or smartphone through the display of a display device such as a TV or monitor.

[0004] On the other hand, the mirroring service is provided according to the wireless display (Miracast) standard. This is because the display resolution or ratio of each manufacturing company is different. In terms of transmitting the video for mirroring to the display device, the electronic device converts the resolution of the video being displayed in the electronic device according to the wireless display standard, and transmits the video with the converted resolution to the display device. For example, the electronic device inserts blank areas above, below, or to the left and right of the video to convert it so that the resolution of the video corresponds to the wireless display standard, and transmits the video with the converted resolution to the display device.

[0005] Therefore, the video displayed on the display device may include a blank area. However, such a blank area may become a factor that hinders the user from enjoying the video. Summary of the invention

[0006] Problems to be solved by the invention

[0007] The present disclosure is proposed to solve the above-mentioned problems, and an object of the present disclosure is to provide a display device and a control method thereof that can display a video of a remaining area except a blank area in a video for mirroring.

[0008] Means for solving problems

[0009] In order to achieve the above-mentioned purpose, a display device of one embodiment of the present disclosure includes: a display; a communication unit, including a circuit for communicating with an electronic device; and a processor, if a video for mirroring is received from the electronic device through the communication unit, it is determined whether the received video includes a blank area for the mirroring; if it is determined that a video including the blank area is received when the display is configured in a preset direction, a video of the remaining area in the received video except the blank area is displayed on the display configured in the preset direction.

[0010] Here, the video received from the electronic device may be a video generated based on the wireless display (Miracast) standard.

[0011] Furthermore, the processor may crop the video of the remaining area except the blank area, scale the resolution of the cropped video to correspond to the resolution of the display, and display the scaled video on the display.

[0012] Here, the processor can receive identification information of the electronic device from the electronic device, and based on information related to the video ratio pre-stored according to the electronic device, determine the video ratio corresponding to the identification information, and crop the video of the area corresponding to the video ratio in the received video.

[0013] Furthermore, if it is determined that the video including the blank area is received in a state where the display is arranged in portrait orientation, the processor may display the video of the remaining area excluding the blank area on the display arranged in portrait orientation.

[0014] Moreover, the processor can display a user interface (UI) in an area of ​​the display for displaying a video of a remaining area other than the blank area, and if a user instruction for selecting the user interface is received, the video of the remaining area is displayed on the vertically configured display.

[0015] Moreover, when a video including the blank area is received in a state where the display is configured in landscape, the processor can rotate the display in portrait orientation and display a video of the remaining area of ​​the received video excluding the blank area on the display configured in portrait orientation.

[0016] Moreover, in the case where a video including the blank area is received while the display is in a landscape configuration, the processor can display the received video on the display and display a user interface (UI) for rotating the display in an area of ​​the display. If a user instruction for selecting the user interface is received, the display is rotated vertically and a video of the remaining area of ​​the received video excluding the blank area is displayed on the display configured vertically.

[0017] On the other hand, when a video that does not include the blank area is received while the display is in a vertical configuration, the processor may display the received video on the display and display a user interface (UI) for rotating the display in an area of ​​the display. If a user instruction for selecting the user interface is received, the display is rotated horizontally and the received video is displayed on the display in a horizontal configuration.

[0018] Furthermore, the processor may confirm a black area in the received video and determine an area corresponding to the black area as the blank area.

[0019] Moreover, the received video includes content being displayed in the electronic device. If it is determined that the blank area is located on the left or right side of the area corresponding to the content, the processor can display the video of the remaining area except the blank area on the display configured according to the preset direction.

[0020] On the other hand, a control method for a display device according to an embodiment of the present disclosure may include: a step of receiving a video for mirroring from an electronic device; a step of determining whether the received video includes a blank area for the mirroring; and if it is determined that a video including the blank area is received when the display of the display device is configured in a preset direction, a step of displaying a video of a remaining area of ​​the received video excluding the blank area on the display configured in the preset direction.

[0021] Here, the video received from the electronic device may be a video generated based on a wireless display standard.

[0022] Moreover, in the displaying step, the video of the remaining area except the blank area may be cropped, the resolution of the cropped video may be scaled to correspond to the resolution of the display, and the scaled video may be displayed on the display.

[0023] Here, in the cropping step, identification information of the electronic device can be received from the electronic device, and based on information related to the video ratio pre-stored in the electronic device, the video ratio corresponding to the identification information is determined, and in the received video, the video of the area corresponding to the video ratio is cropped.

[0024] Furthermore, in the displaying step, if it is determined that the video including the blank area is received in a state where the display is arranged vertically, the video of the remaining area excluding the blank area may be displayed on the display arranged vertically.

[0025] Moreover, in the display step, a user interface (UI) for displaying a video of a remaining area excluding the blank area can be displayed in an area of ​​the display, and if a user instruction for selecting the user interface is received, the video of the remaining area is displayed on the vertically configured display.

[0026] Moreover, in the display step, when a video including the blank area is received while the display is configured horizontally, the display can be rotated vertically and a video of the remaining area of ​​the received video excluding the blank area can be displayed on the display configured vertically.

[0027] Moreover, in the display step, when a video including the blank area is received while the display is in a horizontally configured state, the received video can be displayed on the display, and a user interface (UI) for rotating the display can be displayed in an area of ​​the display. If a user instruction for selecting the user interface is received, the display is rotated vertically, and a video of the remaining area of ​​the received video excluding the blank area is displayed on the display configured vertically.

[0028] On the other hand, in the display step, when a video that does not include the blank area is received while the display is in a vertically configured state, the received video can be displayed on the display, and a user interface (UI) for rotating the display can be displayed in an area of ​​the display. If a user instruction for selecting the user interface is received, the display is rotated horizontally and the received video is displayed on the display in a horizontally configured state.

[0029] Furthermore, in the step of determining the blank area, a black area may be confirmed in the received video, and an area corresponding to the black area may be determined as the blank area.

[0030] Moreover, the received video includes content being displayed in the electronic device. In the display step, if it is determined that the blank area is located on the left or right side of the area corresponding to the content, the video of the remaining area except the blank area can be displayed on the display configured according to the preset direction.

[0031] Effects of the Invention

[0032] According to various embodiments of the present disclosure as described above, since a video of a remaining area excluding a blank area in a video for mirroring is displayed in a display device, a user can improve concentration in enjoying a video. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a block diagram for describing a display device according to an embodiment of the present disclosure.

[0034] Figure 2 FIG. 4 is a diagram for explaining a mirrored video on a display device according to an embodiment of the present disclosure.

[0035] Figure 3 FIG. 4 is a diagram for explaining a mirrored video on a display device according to an embodiment of the present disclosure.

[0036] Figure 4 FIG. 4 is a diagram for explaining a mirrored video on a display device according to an embodiment of the present disclosure.

[0037] Figure 5 FIG. 4 is a diagram for explaining a mirrored video on a display device according to an embodiment of the present disclosure.

[0038] Figure 6 FIG. 1 is a diagram for explaining an example of displaying a video of a remaining area except a blank area on a display device according to an embodiment of the present disclosure.

[0039] Figure 7 This is a diagram for explaining the operation of a display device when receiving a video including a blank area in a state where the display is arranged in a vertical direction according to an embodiment of the present disclosure.

[0040] Figure 8 This is a diagram for explaining the operation of a display device when receiving a video including a blank area in a state where the display is arranged in a vertical direction according to an embodiment of the present disclosure.

[0041] Fig. 9 This is a diagram for explaining the operation of a display device when receiving a video including a blank area in a state where the display is arranged in a vertical direction according to an embodiment of the present disclosure.

[0042] Fig.10 FIG. 4 is a diagram for explaining a UI for zooming in and out of a video according to an embodiment of the present disclosure.

[0043] Fig.11a This is a diagram for explaining the operation of a display device when receiving a video including a blank area in a state where the display is arranged in a horizontal direction according to an embodiment of the present disclosure.

[0044] Fig.11b FIG. 4 is a diagram for explaining a UI for rotating a display according to an embodiment of the present disclosure.

[0045] Fig.12a 1 is a diagram for explaining an operation of a display device when receiving a video that does not include a blank area in a state where the display is arranged in a vertical direction according to an embodiment of the present disclosure.

[0046] Figure 12b FIG. 4 is a diagram for explaining a UI for rotating a display according to an embodiment of the present disclosure.

[0047] Fig.13 is a detailed block diagram for illustrating a display device according to an embodiment of the present disclosure.

[0048] Fig.14 is a flowchart for illustrating a method for controlling a display device according to an embodiment of the present disclosure.

[0049] Description of symbols

[0050] 100: Display device

[0051] 110: Display

[0052] 120: Ministry of Communications

[0053] 130: Processor

[0054] 200: Electronic devices DETAILED DESCRIPTION

[0055] First, considering the functions of the present disclosure, the terms used in this specification and claims are general terms. However, such terms may be different according to the intentions of those skilled in the art, legal or technical interpretations, and the emergence of new technologies. In addition, some terms are terms arbitrarily selected by the applicant. Such terms may be interpreted as having the meaning defined in this specification. If there is no specific definition of the term, the overall content of this specification and the common technical knowledge in the corresponding technical field may also be used as the basis for interpretation.

[0056] Furthermore, in the process of describing the present disclosure, if it is determined that the specific description of a related well-known function or structure may make the gist of the present disclosure obscure, the detailed description will be shortened or omitted.

[0057] Moreover, the embodiments of the present disclosure will be described in detail below with reference to the drawings and the contents in the drawings, but the present disclosure is not limited to or restricted by the embodiments.

[0058] Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings.

[0059] Figure 1 is a block diagram for describing a display device according to an embodiment of the present disclosure.

[0060] The display device 100 of one embodiment of the present disclosure may be a smart TV (TV). However, this is only one embodiment, and the display device 100 may also be a variety of electronic devices with a display such as a computer, a laptop, a tablet computer, a digital camera, a camcorder, a personal digital assistant (PDA), a smart phone, etc.

[0061] Reference Figure 1 , a display device 100 according to an embodiment of the present disclosure includes a display 110 , a communication unit 120 and a processor 130 .

[0062] The display 110 can display a variety of images. For example, the display 110 can mirror the video being displayed on the electronic device. Alternatively, the display 110 can also display the video of the remaining area except the blank area in the video for mirroring.

[0063] Furthermore, the display 110 may display not only various user interfaces (UIs) and icons but also various videos such as broadcast contents and multimedia contents.

[0064] The display 110 is rotatable. Specifically, the display 110 can be configured to be one of a horizontal orientation and a vertical orientation according to a user instruction for rotation. To this end, the present disclosure may further include a driving unit for rotating the display 110.

[0065] The display 110 as described above may be a display in various forms such as LCD (Liquid Crystal Display Panel), LED (light emitting diode), OLED (Organic Light Emitting Diodes), LCoS (Liquid Crystal on Silicon), DLP (Digital Light Processing), etc. Furthermore, the display 110 may also include a driving circuit and a backlight unit that can be embodied in the form of a-si TFT, LTPS (low temperature polysilicon) TFT, OTFT (organic TFT), etc.

[0066] Furthermore, the display 110 may be combined with a touch detection unit to realize a touch screen.

[0067] The communication unit 120 can send and receive various data by communicating with the electronic device. For example, the communication unit 120 can communicate with the electronic device not only through a local area network (LAN), the Internet, and a mobile communication network, but also through various communication methods such as BT (Bluetooth), BLE (Bluetooth Low Energy), WI-FI (Wireless Fidelity), Zigbee, and NFC (Near Field Communication).

[0068] To this end, the communication unit 120 may include various communication modules for performing network communication. For example, the communication unit 120 may include a Bluetooth chip, a WI-FI chip, a wireless communication chip, and the like.

[0069] In particular, the communication unit 120 can receive a video for mirroring from the electronic device by communicating with the electronic device. Here, the electronic device can be a smart phone, a computer, a laptop, etc., but is not limited thereto. The electronic device can be a variety of electronic devices that can transmit the video being displayed in the electronic device to the display device 100.

[0070] On the other hand, the communication unit 120 can also receive broadcast content (or broadcast signals) by communicating with an external device. Here, the television content may include at least one of video, audio, and additional data (e.g., EPG). To this end, the communication unit 120 may include a tuner (not shown), a demodulator (not shown), an equalizer (not shown), etc.

[0071] The processor 130 is used to control the overall operation of the display device 100. To this end, the processor 130 may include one or more of a central processing unit (CPU), an application processor (AP), and a communication processor (CP).

[0072] The processor 130 can control the hardware or software components connected to the processor 130 by driving the operating system or application program, and can process and calculate various data. In addition, the processor 130 can load instructions or data received from at least one of the other components into the volatile memory for processing, and can store various data in the volatile memory.

[0073] The processor 130 can control the communication unit 120 to communicate with the electronic device. Specifically, if a user instruction for communicating with the electronic device is received, the processor 130 searches for surrounding electronic devices through the communication unit 120 and controls the communication unit 120 to communicate with the searched electronic device. Alternatively, when the communication unit 120 is activated, if a signal requesting a communication connection is received from the electronic device, the processor 130 can control the communication unit 120 to communicate.

[0074] Furthermore, the processor 130 may receive a video for mirroring from the electronic device. Specifically, if a user instruction for mirroring is received, the processor 130 transmits a video transmission request signal to the electronic device, and if a video for mirroring is received from the electronic device, the received video may be displayed on the display 110. Alternatively, if a video reception request signal is received from the electronic device while a communication connection is established with the electronic device through the communication unit 120, the processor 130 may control the communication unit 120 to receive a video for mirroring, and display the video received from the electronic device on the display 110.

[0075] Here, the video for mirroring is a video including content displayed in a display of an electronic device, and may be a video having a resolution based on the wireless display (Miracast) standard.

[0076] For example, in a case where the resolution based on the wireless display standard is 1920×1080, the processor 130 may receive a video for mirroring having a resolution of 1920×1080 from the electronic device.

[0077] On the other hand, the video for mirroring may include a blank area. Specifically, the video for mirroring may include a blank area added during the process of converting the video resolution according to the wireless display standard.

[0078] For example, in the case where the display of the electronic device 200 is displaying a video having a resolution of 1920×1080, the video for mirroring does not include a blank area. This is because in this case, the video resolution corresponds to a resolution based on the wireless display standard.

[0079] As another example, when the display of the electronic device 200 is displaying a video with a resolution of 1080×1920, blank areas may be included on the left and right sides of the video for mirroring. This is because in this case, the electronic device adds blank areas on the left and right sides of the video in order to convert the resolution of the video being displayed into a resolution based on the wireless display standard, and transmits the video with the blank areas added to the display device 200 as the video for mirroring.

[0080] Thereafter, the processor 130 may display the video received from the electronic device on the display 110 .

[0081] Specifically, the processor 130 may display the received video or the video excluding the blank area in the received video on the display 110 based on the configuration state of the display 110 and whether the video includes a blank area for mirroring.

[0082] For example, if the video received from the electronic device does not include a blank area for mirroring, Figure 2 and Figure 3 As shown, no matter the configuration state of the display 110 is landscape or portrait, the processor 130 can display the video 210 , 310 for mirroring received from the electronic device 200 on the display 110 .

[0083] This is because when Figure 2 As shown in FIG. 1 , when the display 110 is in a horizontal configuration and receives a video 210 that does not include a blank area, the content currently being displayed in the electronic device 200 will be displayed in the entire area of ​​the display 110, so there is no need to convert the resolution of the video for display. Figure 3 When a video 210 that does not include a blank area is received while the display 110 is configured vertically as shown, if the video is converted and displayed to correspond to the resolution or size of the display 110 (i.e., the video is vertically expanded and displayed), the video display becomes unnatural.

[0084] On the other hand, if the video received from the electronic device includes a blank area for mirroring, the processor 130 may perform different actions according to the configuration state of the display 110 .

[0085] Specifically, Figure 4 As shown, if a video 410 for mirroring including a blank area is received from the electronic device 200 in a state where the display 110 is configured in landscape orientation, the processor 130 may display the video 410 for mirroring on the display 110 .

[0086] This is because when Figure 4 When receiving video 410 including a blank area with display 110 configured horizontally as shown, if the video is converted and displayed to correspond to the resolution or size of display 110 (i.e., the video is expanded horizontally and displayed), the video display becomes unnatural.

[0087] Moreover, if Figure 5 As shown, in the state where the display 110 is configured vertically, if a video 510 for mirroring including a blank area is received from the electronic device 200, as shown in FIG. Figure 6As shown, the processor 130 may display the video of the remaining area except the blank area on the display 110. Alternatively, the processor 130 may display the video including the blank area on the display 110, and then automatically or based on a user instruction, display the video of the remaining area except the blank area on the display 110.

[0088] This is because when Figure 5 When receiving a video 510 including a blank area in the state where the display 110 is configured vertically as shown, it will be more natural to convert the video and display it so that it corresponds to the resolution or size of the display 110, and it is also used to prevent the blank area from hindering the user from enjoying the video.

[0089] The following describes how Figure 5 As shown, the operation of the processor 130 when the video 510 including the blank area is received in the state where the display 110 is arranged vertically.

[0090] Figures 7 to 9 This is a diagram for explaining the operation of a display device when receiving a video including a blank area in a state where the display is arranged in a vertical direction according to an embodiment of the present disclosure.

[0091] If the processor 130 receives a video for mirroring from the electronic device 200 through the communication unit 120, it can determine whether the received video includes a blank area for mirroring. Here, the blank area for mirroring refers to a blank area added to the video in order to have a resolution based on the wireless display standard.

[0092] Specifically, Figure 7 As shown, the processor 130 can determine the black areas 710 and 720 in the video displayed by the display 110, and determine the area corresponding to the black area as a blank area. Here, the black areas 710 and 720 can be determined by analyzing the color value of the video displayed by the display 110. However, this is only an embodiment, and the processor 130 can also determine the black areas 710 and 720 contained in the video displayed by the display 110 through an edge detection algorithm. Alternatively, the processor 130 can also receive information related to each blank area from the electronic device 200 and identify each blank area in the video for mirroring.

[0093] Moreover, the processor 130 may crop the video of the remaining area except the blank area in the video for mirroring. In this case, the processor 130 may further consider that the video 730 of the remaining area except the blank area has been cropped according to the information related to the video ratio stored in the electronic device.

[0094] To this end, the processor 130 may receive identification information of the electronic device 200 from the electronic device 200 through the communication unit 120. Furthermore, the processor 130 may determine the video ratio corresponding to the identification information based on information related to the video ratio stored in each electronic device.

[0095] For example, refer to Figure 8 If the processor 130 determines that the electronic device 200 is a third electronic device based on the identification information of the electronic device 200, it can determine that the video ratio corresponding to the third electronic device is 9:18.5 based on the information related to the video ratio stored in each electronic device. In addition, the processor 130 can crop the video of the area with a horizontal and vertical ratio of 9:18.5 based on the central area of ​​the video received from the electronic device 200 for mirroring.

[0096] As described above, by further considering the stored information related to the video ratio to crop the video, the present disclosure can more accurately crop the area containing the content.

[0097] Then, the processor 130 can scale Fig. 9 The resolution of the cropped video 910 as shown in the figure is adjusted to correspond to the resolution of the display 110. Furthermore, the processor 130 may display the scaled video 920 on the display 110. Thus, the present disclosure may display the video of the remaining area except the blank area on the entire area of ​​the display 110, and may prevent the blank area from hindering the user's video appreciation.

[0098] On the other hand, the processor 130 can determine the configuration state of the display 110 not only based on the ratio of the video being displayed on the display 110, but also based on the status information received from the display 110. Alternatively, the present disclosure may also include a sensor for detecting rotation, such as a gyro sensor, and the processor 130 determines the configuration state of the display 110 based on the status of the display 110 detected by the sensor.

[0099] Fig.10 FIG. 4 is a diagram for explaining a UI for zooming in and out of a video according to an embodiment of the present disclosure.

[0100] If it is determined that the video including the blank area is received in the state where the display 110 is arranged in the vertical direction, the processor 130 may display the video of the remaining area except the blank area on the display 110 arranged in the vertical direction.

[0101] On the other hand, such an operation can be performed not only automatically when it is determined that a video including a blank area is received, but also when a user instruction is received to select a video in the UI for displaying the remaining area except the blank area.

[0102] For example, refer to Fig.10 If it is determined that a video including a blank area is received in a state where the display 110 is configured vertically, the processor 130 may display a UI 1010 for displaying a video of the remaining area except the blank area. Furthermore, if a user instruction is received to select the UI 1010 through a remote control device, a button provided on the electronic device 200 or the display device 100, etc., the processor 130 may display a video of the remaining area except the blank area on the display 110 configured vertically.

[0103] Fig.11a is a diagram for explaining the operation of a display device when receiving a video including a blank area in a state where the display is arranged in a horizontal direction according to an embodiment of the present disclosure, Fig.11b FIG. 4 is a diagram for explaining a UI for rotating a display according to an embodiment of the present disclosure.

[0104] As described above, in the case of receiving a video including a blank area in a state where the display 110 is configured in landscape orientation, the processor 130 may display the video for mirroring received from the electronic device 200 on the display 110 .

[0105] In this case, if Fig.11a As shown, the processor 130 may control the display 110 in a landscape configuration to rotate to a portrait configuration, and display the video of the remaining area except the blank area through the display 110 in a portrait configuration.

[0106] Specifically, the processor 130 determines a blank area in the video received from the electronic device 200 and crops the video of the remaining area except the blank area, and can scale and display the cropped video to correspond to the resolution of the display configured vertically.

[0107] Or, if Fig.11b As shown, the processor 130 can display a UI 1110 for rotating the display 110 in an area of ​​the display 110 configured in a horizontal orientation. If a user instruction for selecting the UI 1110 is received, the display 110 is rotated to a vertical orientation, and a video of the remaining area of ​​the video received from the electronic device 200 except for a blank area is displayed in the display 110 configured in a vertical orientation.

[0108] On the other hand, Fig.11b In the example, only the UI 1110 for rotating is displayed, but the processor 130 may further display information to guide the user to rotate, such as “Please rotate the display to a vertical position”, etc. Thus, the user can enjoy the video after removing the blank area.

[0109] Fig.12ais a diagram for explaining the operation of a display device when receiving a video that does not include a blank area in a state where the display is arranged vertically according to an embodiment of the present disclosure, Figure 12b FIG. 4 is a diagram for explaining a UI for rotating a display according to an embodiment of the present disclosure.

[0110] As described above, if the video received from the electronic device 200 does not include a blank area for mirroring, the processor 130 may display the video 210 , 310 for mirroring received from the electronic device 200 on the display 110 regardless of whether the configuration state of the display 110 is landscape or portrait.

[0111] On the other hand, Fig.12a As shown, if a video not including a blank area is received from the electronic device 200 in a state where the display 110 is configured vertically, the processor 130 can control the display 110 configured vertically to rotate to a horizontal position and display the video received from the electronic device 200 through the display 110 configured horizontally.

[0112] Or, if Figure 12b As shown, the processor 130 can display a UI 1210 for rotating the display 110 in an area of ​​the display 110 configured vertically. If a user instruction for selecting the UI 1210 is received, the display 110 is rotated to a horizontal orientation and a video received from the electronic device 200 is displayed on the display 110 configured horizontally.

[0113] On the other hand, Figure 12b Only the UI 1210 for rotation is shown in FIG. 1 , but the processor 130 may also display information to guide the user to rotate, such as “Please rotate the display to landscape”, etc. Thus, the user can enjoy the video through the entire screen of the display 110 .

[0114] Fig.13 is a detailed block diagram for illustrating a display device according to an embodiment of the present disclosure.

[0115] Reference Fig.13 The display device 100 of an embodiment of the present disclosure may include a display 110, a communication unit 120, a storage unit 140, a microphone 150, a speaker 160, an input unit 170, a signal processing unit 180 and a processor 130. In the following, the parts that overlap with the above description will be omitted or shortened for description.

[0116] The storage unit 140 may store an operating system (OS) for controlling overall operations of components of the display device 100 and instructions or data related to components of the display device 100 .

[0117] Therefore, the processor 130 can control multiple hardware structural elements or software structural elements of the display device 100 by utilizing various instructions or data stored in the storage unit 140, load instructions or data received from at least one of the other multiple structural elements into a volatile memory for processing, and store various data in a non-volatile memory.

[0118] In particular, the storage unit 140 may store information related to video ratio or resolution according to electronic devices.

[0119] The microphone 150 may receive a user voice. Here, the user voice may be a voice for executing a specific function of the display device 100. If the user voice is received through the microphone 150, the processor 130 may analyze the user voice through a speech to text (STT) algorithm and execute a function corresponding to the user voice.

[0120] The speaker 160 may output various audios. For example, in the case of displaying a video of a remaining area except a blank area in the video for mirroring or in the case of rotating the display 110, the speaker 160 may output audio.

[0121] The input unit 170 may receive various user commands. The processor 130 may execute a function corresponding to the user command input through the input unit 170.

[0122] For example, the input unit 170 may receive a user instruction for displaying a video of the remaining area except the blank area in the video for mirroring, and the processor 120 may display the video of the remaining area except the blank area on the display 110 according to the user input. In addition, the input unit 170 may receive a user instruction for performing power-on, channel change, volume adjustment, etc., and the processor 130 may power on the display device 100, or perform channel change, volume adjustment, etc. according to the input user instruction.

[0123] To this end, the input unit 170 may be implemented by an input panel. The input panel may be implemented by a touch pad, a key pad having various function keys, numeric keys, special keys, character keys, etc., or a touch screen.

[0124] The signal processing unit 180 performs signal processing on the content received through the communication unit 120. Specifically, the signal processing unit 180 can perform signal processing such as decoding, scaling, and frame rate conversion on the video constituting the content so that the video can be output from the display device 100. In addition, the signal processing unit 180 can perform signal processing such as decoding on the audio constituting the content so as to process the audio signal into a form that can be output from the speaker 160.

[0125] Therefore, the display 110 can display a video or the like output from the signal processing unit 180 , and the speaker 160 can output an audio output from the signal processing unit 180 .

[0126] On the other hand, the display device 100 according to an embodiment of the present disclosure may further include a motor for rotating the display 110. If a user instruction for rotating the display 110 is received, the processor 130 transmits a control signal to the motor, so that the display 110 can be rotated.

[0127] Fig.14 is a flowchart for illustrating a method for controlling a display device according to an embodiment of the present disclosure.

[0128] The display device of one embodiment of the present disclosure may receive a video for mirroring from an electronic device (S1410). Here, the video for mirroring may include content being displayed by the electronic device and a blank area. Specifically, the electronic device can transmit a video with blank areas inserted on the left and right sides of an area corresponding to the content being displayed in the electronic device according to a wireless display standard to the display device.

[0129] Furthermore, the display device may determine whether there is a blank area for mirroring in the video received from the electronic device (S1420). Specifically, the display device can confirm a black area based on a pixel value of the display device and determine an area corresponding to the black area as a blank area.

[0130] Furthermore, if it is determined that a video including a blank area is received in a state where the display is configured in a preset direction, the display device may display a video of a remaining area of ​​the received video except the blank area on the display configured in the preset direction (S1430).

[0131] Therefore, the present disclosure can display the content being displayed in the electronic device in the entire area of ​​the display, thereby improving the user's concentration in enjoying the video.

[0132] On the other hand, the above describes an embodiment in which blank areas are inserted on the left and right sides of an area corresponding to content being displayed in an electronic device, but the above technical idea of ​​the present invention may also be applied in the case of inserting blank areas on the upper and lower sides or on the upper, lower, left and right sides of an area corresponding to content being displayed in an electronic device.

[0133] On the other hand, the methods according to various embodiments of the present invention described above can be implemented in the form of software or an application program that can be installed in an existing display device.

[0134] Furthermore, the methods involved in the various embodiments of the present invention as described above can be implemented by only performing software upgrade or hardware upgrade on the existing display device.

[0135] Furthermore, the various embodiments of the present invention described above may also be executed by a built-in server disposed in the display device or a server outside the display device.

[0136] On the other hand, a non-transitory computer readable medium storing a program may be provided. The program sequentially executes the control method of the display device of the present invention.

[0137] Non-transitory computer-readable media refers to media that semi-permanently stores data and can be read by a device, rather than registers, caches, memories, and other media that store data for a short period of time. Specifically, the above-mentioned various applications or programs can be stored in non-transitory computer-readable media such as CDs, DVDs, hard disks, Blu-ray discs, USBs, memory cards, ROMs, etc.

[0138] Furthermore, the preferred embodiments of the present invention are illustrated and described above, but the present invention is not limited to the specific embodiments described above, and various modifications may be implemented by those skilled in the art without departing from the spirit of the present invention as claimed in the claims, and such modified implementation should not be understood separately from the technical idea or prospect of the present invention.

Claims

1. A display device, characterized in that: include: Display, which can be rotated for landscape or portrait configuration; a communication unit including a circuit for communicating with an electronic device; as well as The processor is configured as: If an image for mirroring is received from the electronic device through the communication unit, it is determined whether the received image for mirroring includes a blank area, If it is determined that the blank area is in the received image when the display is arranged in one of the horizontal and vertical directions, an image including the blank area is displayed on the display, The processor is further configured to control to display an image of a remaining area of ​​the received image except the blank area when the display is rotated to be configured in the other direction of landscape or portrait.

2. The display device according to claim 1, characterized in that The image received from the electronic device is received based on a wireless display standard.

3. The display device according to claim 1, characterized in that The processor crops the received image to obtain an image of a remaining area except the blank area, scales the resolution of the cropped image to correspond to the resolution of the display, and displays the image with scaled resolution on the display.

4. The display device according to claim 3, characterized in that: The processor receives identification information of the electronic device from the electronic device, and determines the image ratio corresponding to the identification information based on information related to the image ratio pre-stored in the electronic device, The processor crops the received image based on the determined image ratio to obtain an image of an area corresponding to the image ratio.

5. The display device according to claim 1, characterized in that If it is determined that the blank area is in the received image when the display is arranged vertically, the processor displays an image of a remaining area excluding the blank area on the display arranged vertically.

6. The display device according to claim 5, characterized in that: The processor displays a user interface for displaying an image of a remaining area except the blank area on the display, and displays the image of the remaining area on the vertically arranged display if a user instruction for selecting the user interface is received.

7. The display device according to claim 1, characterized in that: When an image including the blank area is received while the display is arranged in a landscape orientation, the processor rotates the display in a portrait orientation and displays an image of a remaining area of ​​the received image excluding the blank area on the display arranged in the portrait orientation.

8. The display device according to claim 1, characterized in that: When an image including the blank area is received while the display is in a landscape configuration, the processor displays the received image on the display and displays a user interface for rotating the display. If a user instruction for selecting the user interface is received, the display is rotated vertically and an image of the remaining area of ​​the received image excluding the blank area is displayed on the display in the portrait configuration.

9. The display device according to claim 1, characterized in that: When an image that does not include the blank area is received while the display is in a vertically configured state, the processor displays the received image on the display and displays a user interface for rotating the display on the display. If a user instruction for selecting the user interface is received, the display is rotated horizontally and the received image is displayed on the display in the horizontally configured state.

10. The display device according to claim 1, characterized in that: The processor identifies a black area in the received image, and determines an area corresponding to the black area as the blank area.

11. The display device according to claim 1, characterized in that: The received image includes content being displayed in the electronic device, If it is determined that the blank area is located on the left or right side of the area corresponding to the content, the processor displays an image of a remaining area except the blank area on the display.

12. A method for controlling a display device, the display device having a display that can be rotated to be configured in a landscape or portrait orientation, the method comprising: receiving an image for mirroring from an electronic device; Determining whether the received image for mirroring includes a blank area; If it is determined that the blank area is in the received image when the display is arranged in one of the horizontal and vertical directions, then displaying the image including the blank area on the display, and When the display is rotated to be arranged in the other orientation of landscape or portrait, an image of a remaining area of ​​the received image excluding the blank area is displayed on the display.

13. The control method of the display device according to claim 12, characterized in that: The image received from the electronic device is received based on a wireless display standard.

14. The control method of the display device according to claim 12, characterized in that: In the display step, the received image is cropped to obtain an image of the remaining area except the blank area, the resolution of the cropped image is scaled to correspond to the resolution of the display, and the image with the scaled resolution is displayed on the display.

15. The control method of the display device according to claim 14, characterized in that: In the cropping step, identification information of the electronic device is received from the electronic device, and based on information related to the image ratio pre-stored in the electronic device, the image ratio corresponding to the identification information is determined, and based on the determined image ratio, the received image is cropped to obtain an image of an area corresponding to the image ratio.

Images