KR102529269B1 - Electronics apparatus and control method thereof - Google Patents

Abstract

An electronic device is disclosed. The electronic device includes a communication interface and a processor that provides video content and graphic content to an external display device through the communication interface. The output resolution of the electronic device is identified, and if the output resolution of the display device is less than or equal to the preset resolution, the size of the graphic content is reduced by a preset ratio, and the video content and the reduced graphic content are provided to the display device through a communication interface. do.

Description

Electronic device and its control method { ELECTRONICS APPARATUS AND CONTROL METHOD THEREOF }

The present invention relates to an electronic device and a method for controlling the same, and more particularly, to an electronic device for reproducing video content and a method for controlling the same.

Thanks to the development of electronic technology, various types of electronic devices are being developed and supplied. In particular, electronic devices such as mobile devices and TVs, which have been most widely used recently, have developed rapidly in recent years.

Electronic devices overscan and output low-resolution content to provide users with content of various resolutions at a constant level.

However, the existing overscan simply enlarges and outputs the content at a constant ratio so that the outer area of the content is not output without considering the characteristics of the content.

Accordingly, there is a problem in that a portion of the content that needs to be output is cut off by overscanning and not provided to the user.

SUMMARY OF THE INVENTION The present disclosure has been made in accordance with the above-described needs, and an object of the present invention is to provide an electronic device that provides graphic content to a user without a cutout area and a method for controlling the same.

According to an embodiment for achieving the above object of the present disclosure, an electronic device includes a communication interface and a processor providing video contents and graphic contents to an external display device through the communication interface, wherein the processor comprises: The output resolution of the electronic device is identified based on at least one of output resolution mode information of the device and resolution information of the video content, and if the output resolution of the electronic device is less than or equal to a preset resolution, the size of the graphic content is reduced to a preset ratio. and reduce the video content and the size-reduced graphic content to the display device through the communication interface.

Here, the output resolution mode information may include first information indicating that the electronic device is set to a first mode for outputting the video content at a default resolution, or first information indicating that the electronic device outputs the video content at the resolution of the video content. Second information indicating that the mode 2 is set may be included.

In addition, when the output resolution mode information includes the first information and it is identified that the output resolution of the electronic device is equal to or less than the preset resolution based on the default resolution, the processor sets the size of the graphic content to the preset resolution. It can be scaled down in proportion.

In addition, when the output resolution mode information includes the second information and it is identified that the output resolution of the electronic device is equal to or less than the preset resolution based on the resolution of the video content, the processor determines the size of the graphic content as the size of the graphic content. It can be reduced by a preset ratio.

The processor may reduce the size of the graphic content by a first ratio when the output resolution of the electronic device is a first resolution, and if the output resolution of the electronic device is a second resolution lower than the first resolution, the size of the graphic content may be reduced by a first ratio. The size of the graphic content is reduced by a second ratio, and the second ratio may be greater than the first ratio.

In addition, the processor may overlay the reduced graphic content on the video content and provide it to the display device through the communication interface.

Also, the processor may reduce the size of the graphic content by the preset ratio based on the location of the graphic content on the frame of the video content, the size of the frame, and the center position of the frame.

Also, the processor may reduce the size of the graphic content by the predetermined ratio based on the center position of the graphic content.

And, the preset resolution may be at least one of 480i and 480p.

Meanwhile, according to an embodiment of the present disclosure, a control method of an electronic device includes identifying an output resolution of the electronic device based on at least one of resolution information of video content and output resolution mode information of the electronic device; and reducing the size of the graphic content by a predetermined ratio when the output resolution of is less than or equal to the preset resolution, and transmitting the video content and the reduced graphic content to a display device.

Here, the output resolution mode information may include first information indicating that the electronic device is set to a first mode for outputting the video content at a default resolution, or first information indicating that the electronic device outputs the video content at the resolution of the video content. Second information indicating that the mode 2 is set may be included.

In addition, in the step of reducing the graphic content by the predetermined ratio, when the output resolution mode information includes the first information and it is identified that the output resolution of the electronic device is equal to or less than the predetermined resolution based on the default resolution. The size of may be reduced by the predetermined ratio.

In addition, the step of downscaling by the preset ratio may include, when the output resolution mode information includes the second information and it is identified that the output resolution of the electronic device is equal to or less than the preset resolution based on the resolution of the video content, the The size of the graphic content may be reduced by the predetermined ratio.

In addition, the reducing by the predetermined ratio may include, when the output resolution of the electronic device is the first resolution, reducing the size of the graphic content by the first ratio, and the output resolution of the electronic device is lower than the first resolution. If it is the second resolution, the size of the graphic content is reduced by a second ratio, and the second ratio may be greater than the first ratio.

In the transmitting to the display device, the reduced graphic content may be overlaid on the video content and provided to the display device.

In addition, the step of reducing the graphic content by the predetermined ratio may reduce the size of the graphic contents by the predetermined ratio based on the position of the graphic contents on the frame of the video contents, the size of the frame, and the center position of the frame. can

In the reducing by the predetermined ratio, the size of the graphic content may be reduced by the predetermined ratio based on the center position of the graphic content.

And, the preset resolution may be at least one of 480i and 480p.

Meanwhile, according to an embodiment of the present disclosure, in a non-transitory computer readable medium storing computer instructions for causing an electronic device to perform an operation when executed by a processor of an electronic device, the operation includes video content Identifying an output resolution of the electronic device based on at least one of resolution information and output resolution mode information of the electronic device, reducing the size of graphic content by a preset ratio when the output resolution of the electronic device is equal to or less than a preset resolution and transmitting the video content and the size-reduced graphic content to a display device.

According to various embodiments of the present disclosure, user convenience may be improved by adjusting the size of the graphic content according to the resolution and outputting all regions of the graphic content.

1 is a block diagram showing the configuration of an electronic device according to an embodiment of the present disclosure.
FIG. 2 is a block diagram showing a detailed configuration of the electronic device shown in FIG. 1 .
3 is a diagram for explaining video and graphic content according to an embodiment of the present disclosure.
4 is a diagram for explaining a preset resolution according to an embodiment of the present disclosure.
5 is a diagram for explaining graphic content whose size is reduced according to an embodiment of the present disclosure.
6 is a diagram for explaining an electronic device according to another embodiment of the present disclosure.
7 is a flowchart illustrating a control method of an electronic device according to an embodiment of the present disclosure.
8 is a flowchart illustrating a method of identifying an output resolution according to an embodiment of the present disclosure.

Terms used in this specification will be briefly described, and the present disclosure will be described in detail.

The terms used in the embodiments of the present disclosure have been selected from general terms that are currently widely used as much as possible while considering the functions in the present disclosure, but they may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technologies, and the like. . In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the disclosure. Therefore, terms used in the present disclosure should be defined based on the meaning of the term and the general content of the present disclosure, not simply the name of the term.

Embodiments of the present disclosure may apply various transformations and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the scope to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of technology disclosed. In describing the embodiments, if it is determined that a detailed description of a related known technology may obscure the subject matter, the detailed description will be omitted.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. Terms are only used to distinguish one component from another.

Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprise" or "consist of" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other It should be understood that the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof is not precluded.

In the present disclosure, a “module” or “unit” performs at least one function or operation, and may be implemented in hardware or software or a combination of hardware and software. In addition, a plurality of "modules" or a plurality of "units" are integrated into at least one module and implemented by at least one processor (not shown), except for "modules" or "units" that need to be implemented with specific hardware. It can be.

Hereinafter, with reference to the accompanying drawings, embodiments of the present disclosure will be described in detail so that those skilled in the art can easily carry out the present disclosure. However, the present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. And in order to clearly describe the present disclosure in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

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

The electronic device 100 may be, for example, a Blu-ray player, a DVD (Digital Versatile Disc) player, a streaming content output device, etc., but is not limited thereto and can be implemented as various types of playback devices. do. In addition, it goes without saying that the electronic device 100 may be implemented as various types of source devices that provide content to a display device, such as a set-top box or a USB device.

Here, the display device may be, for example, a TV, but is not limited thereto, and is not limited thereto, such as HMD (Head Mounted Display), NED (Near Eye Display), LFD (large format display), Digital Signage (digital signage), DID (Digital Signage) It can be implemented with various types of devices capable of displaying contents such as information display) and video wall.

According to an embodiment of the present disclosure, the electronic device 100 may reproduce an optical disc (eg, a Blu-ray Disc) on which content is recorded, and provide the content to a display device. However, it goes without saying that according to another embodiment of the present disclosure, the electronic device 100 may include a display and reproduce and display video content itself.

Referring to FIG. 1 , an electronic device 100 includes a communication interface 110 and a processor 120 . The electronic device 100 according to an embodiment of the present disclosure may be implemented as a player device that reproduces content and provides it to an external display device. For example, the electronic device 100 may be implemented as an Ultra HD (UHD) Blu-ray player, a Digital Versatile Disc (DVD) player, or the like.

The communication interface 110 communicates with an external display device.

According to an embodiment, the communication interface 110 may be implemented as an HDMI interface capable of transmitting high resolution video and multi-channel digital audio through a single cable. For example, the communication interface 110 includes a Transition Minimized Differential Signaling (TMDS) channel for transmitting video and audio signals, device information, and information related to video or audio (eg E-EDID (Enhanced Extended Display Identification Data)) It may include a display data channel (DDC) for transmitting and receiving and a consumer electronic control (CEC) for transmitting and receiving control signals. However, it is not limited thereto, and may be implemented as various interfaces according to implementation examples of the electronic device 100 , of course. For example, the communication interface 110 includes various types of digital interfaces, AP-based Wi-Fi (Wi-Fi, Wireless LAN network), Bluetooth, Zigbee, wired / wireless LAN (Local Area Network), WAN , Ethernet, IEEE 1394, HDMI, USB, MHL, AES/EBU, optical, coaxial, and the like may be implemented in a form of supporting at least one communication method.

In addition, the electronic device 100 streams or streams from an external device (eg, a source device), an external storage medium (eg, USB), an external server (eg, a web hard drive) through the various communication methods described above. Of course, a separate communication interface (not shown) capable of receiving an image signal in a download method may be further included.

According to an embodiment, the communication interface 110 receives information about monitor performance of the display device, provides the received information to the processor 120, and outputs content provided from the processor 120 to the display device.

The processor 120 controls overall operations of the electronic device 100 .

According to an embodiment, the processor 120 may be implemented as a digital signal processor (DSP), a microprocessor, or a time controller (TCON) that processes digital image signals. However, it is not limited thereto. It is not a central processing unit (CPU), a micro controller unit (MCU), a micro processing unit (MPU), a controller, an application processor (AP), or a communication processor ( CP)) and ARM processors, or may be defined in terms of one or more, In addition, the processor 120 is implemented as a System on Chip (SoC) with a built-in processing algorithm or a large scale integration (LSI). It may be, or it may be implemented in the form of a Field Programmable Gate Array (FPGA).

The processor 120 may provide video content and graphic content to a display device. For example, if the electronic device 100 is implemented as a playback device, it provides the video content to be played along with graphic content to the display device through the communication interface 110 . For example, video content may be content encoded based on a specific video codec. Here, the video codec may be HEVC (H.265), AVC (H.264), MPEG 4, MPEG 2, etc., but is not limited thereto.

For example, the processor 120 decodes the input content and provides the decoded video content together with graphic content to a display device.

In particular, the processor 120 identifies the output resolution of the electronic device 100 based on at least one of output resolution mode information of the electronic device 100 and resolution information of video content, and determines that the output resolution of the electronic device 100 is If the resolution is less than or equal to the preset resolution, the graphic content may be reduced in size by a predetermined ratio, and the video contents and the reduced graphic contents may be provided to the external display device through the communication interface 110 .

Here, the graphic content may include at least one of IG (Interactive Graphic), PG (Presentation Graphic), and GUI (Graphical User Interface). IG is a specific point in time (eg, an initial point in video content) PG refers to graphic content that can be selected or controlled by users, such as main menu graphics provided in , and PG refers to graphic content that is unilaterally shown to users in content, such as subtitles, performer information, etc. In addition, GUI refers to playback control It refers to a UI provided according to a user command, such as a menu, etc. However, in the case of subtitles, if they are provided throughout the content, it is possible not to process them as graphic content according to an embodiment of the present invention.

The graphic content may be activated when an event in which a user command is input through the electronic device 100 or the display device occurs, or when a specific period (or frame) or a specific time point in which the graphic content is automatically provided in the video content is reached. In addition, an application programming interface (API) or program included in content corresponding to each content section includes information on whether graphic content is activated or not, and based on the information, whether graphic content is activated can be identified. For example, in the case of a Java Blu-ray Disc (BD-J), IG, PG, etc. may be provided through a Java application, and in this case, the electronic device 100 may not be able to identify a graphic activation time point. . In this case, information for providing the electronic device 100 with whether or not the corresponding graphic content is activated and when it is activated may be included in the content. For example, if information on whether graphic content is activated is included using bits of a reserved area of meta data, the processor 120 can identify when the graphic content is activated based on the corresponding bit. there will be

Meanwhile, since GUI is a menu graphic provided by the electronic device 100 according to a user command, it may be different from IG, PG, etc. in that the electronic device 100 can identify the provision time of the corresponding graphic content.

For example, when graphic content is activated, the processor 120 may render (or blend) the graphic content on a frame of video content and provide the graphic content to a display device. For example, the processor 120 may overlay graphic content on video content and transmit the graphic content to the display device through the communication interface 110 .

The processor 120 according to an embodiment may identify the output resolution of the electronic device 100 based on at least one of output resolution mode information and video content resolution information of the electronic device 100 .

Here, the output resolution mode information is first information indicating that the electronic device 100 is set to a first mode for outputting video content at a default resolution, or first information indicating that the electronic device 100 is set for a second mode for outputting video content at the resolution of the video content. 2 information may be included.

For example, when the electronic device 100 is set to the first mode, the electronic device 100 may output video content at a specific resolution regardless of the resolution of the video content. The electronic device 100 may provide video content at a specific resolution to a display device. For example, if the resolution of the video content is 1080p (1920x1080) and the electronic device 100 is set to the first mode with a default resolution of 480p (720x480), the electronic device 100 sets the resolution of the video content to 480p. It can be scaled down to a resolution and provided to a display device. As another example, if the resolution of the video content is 480p and the display device is set to the first mode with a default resolution of 2160p (4096x2160), the electronic device 100 may upscale the resolution of the video content to 2160p and output the result. .

As another example, when the electronic device 100 is set to the second mode, the electronic device 100 may output video content while maintaining the resolution of the video content as it is. For example, if the resolution of the video content is 1080p and the electronic device 100 is set to the second mode, the electronic device 100 outputs the video content to the display device through the communication interface while maintaining the resolution of 1080p. can do.

The processor 120 may identify whether the electronic device 100 is set to the first mode or the second mode based on the output resolution mode information of the electronic device 100 . Also, the processor 120 may identify the resolution of video content.

According to an embodiment, if the output resolution mode information includes the first information, the processor 120 may identify a default resolution at which the electronic device 100 outputs video content according to the first information. For example, if the default resolution is 480p according to the first information, the processor 120 may identify the output resolution of the electronic device 100 as 480p.

According to another embodiment, if the output resolution mode information includes the second information, the processor 120 may identify the output resolution of the electronic device 100 based on the resolution of the video content. For example, if the electronic device 100 is set to a mode for outputting video content while maintaining the resolution of the video content as it is and the resolution of the video content is 1080p according to the output resolution mode information, the processor 120 may perform We can identify the output resolution of (100) as 1080p.

When the output resolution of the electronic device 100 is identified, the processor 120 according to an embodiment of the present disclosure may identify whether the output resolution is equal to or less than a preset resolution. Here, the preset resolution may be different according to a set value according to a purpose of a manufacturer of the electronic device 100, a set value according to a user's operation, and a unique set value of content. For example, the preset resolution may be set to 480p (720x480). On the other hand, resolutions such as 2160p (3840 × 2160), 1080p (1920x1080), 720p (1280x720), 480p (720x480) described in this specification are examples, and the resolution may be variously set according to the manufacturer, and the preset resolution Of course, it can also be set in various ways. For example, resolution refers to the ratio of the display provided in the display device (eg, 4:3, 16:9, and 21:9), format (VGA, VGA, QXGA, HD, and UHD), refresh rate (frames), and scan It can be defined in various ways depending on the method (progressive or interlace). Hereinafter, for convenience of description, a case in which the preset resolution is at least one of 480i and 480p will be described.

According to an embodiment, it may be assumed that the processor 120 provides video content and graphic content with a preset resolution or less to a display device through the communication interface 110 . In this case, the display device overscans the video content and graphic content and outputs them through the display.

For example, video content having a resolution less than or equal to a preset resolution may include noise in an outer area (eg, 3% to 5% area) of a frame of the video content. For video contents with resolutions such as DVD (720x480), VGA (640x480), SD (320 x 240), noise removal is performed on the internal area (for example, 95% to 97%) in the content production process, , noise removal may not be performed on the outer area (eg, 3% to 5%).

The display device according to an embodiment may enlarge and output the video content at a predetermined ratio in order to prevent noise existing in an outer area of the frame of the video content from being provided to the user. Accordingly, noise existing in the outer region of the frame may be cut off, but there is a problem in that graphic contents such as IG, PG, and GUI rendered in the outer region of the frame are also cut out.

If the output resolution of the electronic device 100 is less than or equal to a preset resolution, the processor 120 according to an embodiment of the present disclosure determines the size of the graphic content in consideration of the outer area cut out by the overscan performed by the display device. It can be reduced by a set ratio, and the video content and the reduced graphic content can be provided to the display device. Accordingly, even when the display device overscans the received video content and graphic content, the graphic content can be displayed without a cut-off area.

The processor 120 according to an embodiment of the present disclosure may reduce graphic content at different ratios according to the output resolution of the electronic device 100 . For example, if the output resolution is a first resolution, the graphic content may be reduced by a first ratio, and if the output resolution is a second resolution lower than the first resolution, the graphic content may be reduced by a second ratio. Here, the second ratio may be greater than the first ratio.

For example, if the output resolution is 720x480, the processor 120 may reduce the graphic content according to the first ratio. As another example, if the output resolution is 320x240, the processor 120 may reduce the graphic content according to the second ratio. The display device may determine that noise exists in an outer area where video content with a resolution of 320x240 is relatively wider than video content with a resolution of 720x480. Accordingly, the electronic device 100 may cut out the outer region at a higher rate (or perform overscan at a higher rate) and output the video content with a resolution of 320x240 when outputting the video content with a resolution of 720x480. there is.

The processor 120 may reduce the size of graphic content in consideration of overscan performed by the display device. For example, if the output resolution is 320x240, graphic content may be reduced at a higher rate than when the output resolution is 720x480.

The processor 120 according to an embodiment of the present disclosure may reduce the size of the graphic content by a predetermined ratio based on the location of the graphic content on the frame of the video content, the size of the frame, and the location of the center of the frame.

If the mode of the electronic device 100 is an automatic mode, the processor 120 according to another embodiment of the present disclosure may identify the output resolution by considering device information about the display device. Here, the automatic mode is a configuration in which the electronic device 100 identifies the output resolution based on the received EDID of the display device. According to an embodiment, the device information of the display device may include information on resolutions supportable by the display device. The device information may mean extended display identification data (EDID) or the like. According to an embodiment, in the automatic mode of the electronic device 100, the processor 120 may identify an output resolution based on at least one of a supported resolution of the display device and a resolution of video content. If the output resolution of the electronic device 100 identified according to at least one of the supported resolution of the display device and the resolution of the video content is equal to or less than a preset resolution, the processor 120 may reduce the size of the graphic content by a preset ratio. .

The processor 120 according to another embodiment of the present disclosure may reduce the size of the graphic content by a predetermined ratio based on the center position of the graphic content. A detailed description of this will be given in FIG. 4 .

FIG. 2 is a block diagram showing a detailed configuration of the electronic device shown in FIG. 1 .

According to FIG. 2 , the electronic device 100 includes a communication interface 110, a processor 120, a content receiving unit 130, a remote control receiving unit 140, and an input unit 150. Among the components shown in FIG. 2, detailed descriptions of the components shown in FIG. 1 and overlapping components will be omitted.

The processor 120 according to an embodiment of the present disclosure stores a CPU, a ROM (or non-volatile memory) in which a control program for controlling the electronic device 100 is stored, and data input from the outside of the electronic device 100 or RAM (or volatile memory) used as a storage area corresponding to various tasks performed in the electronic device 100 .

The CPU accesses storage (not shown) and performs booting using the O/S stored in the storage. In addition, various operations are performed using various programs, contents, data, etc. stored in the storage.

Here, the storage may be implemented as an internal memory such as a ROM or RAM included in the processor 120 or may be implemented as a memory separate from the processor 120 . In this case, the storage may be implemented in the form of a memory embedded in the electronic device 100 or in the form of a removable memory in the electronic device 100 depending on the purpose of storing data. For example, data for driving the electronic device 100 is stored in a memory embedded in the electronic device 100, and data for an extended function of the electronic device 100 is detachable from the electronic device 100. It can be stored in available memory. On the other hand, in the case of memory embedded in the electronic device 100, it is implemented in the form of a non-volatile memory, volatile memory, hard disk drive (HDD) or solid state drive (SSD), etc., and is detachable from the sound output device 100 The memory may be implemented in the form of a memory card (eg, micro SD card, USB memory, etc.), an external memory (eg, USB memory) connectable to a USB port, and the like.

The content receiving unit 130 may be implemented as a tuner that receives broadcast images, but is not limited thereto, and may be implemented as various types of communication modules capable of receiving various external images such as a Wi-Fi module, a USB module, and an HDMI module. . Also, the image may be stored in the storage, and in this case, the electronic device 100 may adjust and output the output luminance of the image stored in the storage according to various embodiments of the present disclosure. In addition, when the electronic device 100 is implemented as a playback device, the content receiving unit 130 reads data from an optical disk as a disk drive, and converts the read data to at least one of the processor 120, the communication interface 110, and the storage. output as one For example, the disk drive may be implemented as a BD-ROM drive or a BD combo drive.

The remote control signal receiving unit 140 is a component for receiving a remote control signal transmitted from a remote control. The remote control signal receiving unit 140 may be implemented in a form including a light receiving unit for receiving an IR (Infra Red) signal, and receives a remote control signal by performing communication with the remote control according to a wireless communication protocol such as Bluetooth or Wi-Fi. may be implemented as

The input unit 150 may be implemented as various buttons provided on the main body of the electronic device 100 . A user may input various user commands such as a turn on/off command, a channel change command, a volume control command, and a menu check command through the input unit 150 .

Meanwhile, the electronic device 100 according to an embodiment of the present invention may control graphic contents according to various embodiments of the present invention in response to user inputs to the remote control signal receiver 140 and the input unit 150. In addition, it goes without saying that settings for a preset resolution, a preset ratio, and the like can be changed and stored in response to a user input.

3 is a diagram for explaining video and graphic content according to an embodiment of the present disclosure.

Referring to FIG. 3 , the electronic device 100 may provide video content 300 and graphic content 400 to the display device 200 .

According to an embodiment of the present disclosure, the electronic device 100 may identify an output resolution of the electronic device 100 based on at least one of output resolution mode information of the electronic device 100 and resolution information of the video content 300. can

For example, in a mode in which the electronic device 100 outputs the video content 300 with the resolution maintained as it is based on the output resolution mode information, the electronic device 100 based on the resolution information of the video content 300 Thus, the output resolution of the electronic device 100 may be identified. If the output resolution is less than or equal to the preset resolution, the electronic device 100 reduces the size of the graphic content 400 at a preset ratio, and displays the video content 300 and the reduced graphic content 400 to the display device 200. can transmit

The video content 300 and the reduced graphic content 400 may be overscanned on the display device 200 and output as shown in FIG. 3 . Referring to FIG. 3 , the electronic device 100 reduces the size of the graphic content 400 by a predetermined ratio (eg, 3%) and transmits the size of the graphic content 400 to the display device 200, and the display device 200 transmits the video. The content 300 and graphic content 400 may be enlarged at a predetermined ratio (eg, 3%), and the enlarged video content 300 and graphic content 400 may be output.

Here, since the graphic content 400 is reduced and enlarged at the same preset ratio, it can be provided to the user without an area cut off by overscan. An outer area where noise exists in the video content 300 is cut off as the video content is enlarged according to a preset ratio.

As another example, if the electronic device 100 is in a mode for outputting the video content 300 at a default resolution based on the output resolution mode information, the electronic device 100 sets the output resolution of the electronic device 100 based on the default resolution. can be identified. Here, the mode for outputting the video content 300 at a default resolution may refer to a mode for outputting the video content 300 at a specific resolution regardless of the resolution of the video content 300 . Accordingly, the video content 300 may be output after being scaled up or down. If the default resolution is less than or equal to the preset resolution, the electronic device 100 may reduce the graphic content 400 at a preset ratio. The electronic device 100 may enlarge and output the video content 300 and the graphic content 400 at a preset ratio in the process of outputting the video content 300 and the graphic content 400 at a default resolution less than or equal to the preset resolution. Since the graphic content 400 is reduced and enlarged at a predetermined ratio, it can be provided to the user without a cropped area.

4 is a diagram for explaining a preset resolution according to an embodiment of the present disclosure.

When outputting video content having a resolution less than or equal to a preset resolution, the display device 200 according to an embodiment of the present disclosure may enlarge and output the video content at a preset ratio.

It is highly likely that the noise 20 removal process for the outer area is not properly performed in the process of manufacturing the video content having a resolution lower than the preset resolution. In consideration of this, the display device 200 may enlarge and output the video content by a predetermined ratio based on the central portion of the frame of the video content so that the outer area is not provided to the user. Accordingly, the outer region where the noise 20 exists may be cut out.

Referring to FIG. 4 , video content 10 - 1 having a resolution equal to or less than a preset resolution may be output after being enlarged by a preset ratio based on the center of the frame. In the video content 10 - 2 output through the display device 200 , a region where the noise 20 exists may not be provided to the user.

The electronic device 100 according to an embodiment of the present disclosure may reduce the size of the graphic content 400 at a preset ratio in consideration of the size of the output video content 10-2. Accordingly, referring to FIG. 4 , the size of graphic content 400 may be reduced to fit 10-2 instead of 10-1, and the reduced graphic content 400 may be overlaid to fit 10-2.

5 is a diagram for explaining graphic content whose size is reduced according to an embodiment of the present disclosure.

5(a) is a diagram for explaining a case where the output resolution of the electronic device 100 is equal to or less than a preset resolution and non-reduced graphic content 400 is output. It may be assumed that the electronic device 100 overlays the video content 300 on the video content 300 without reducing the size of the graphic content 400 and transmits the graphic content 400 to the display device 200 .

When the resolution of the received content is equal to or less than a preset resolution, the display device 200 may determine that noise 20 exists in an area outside the video content 300, and prevent the noise 20 from being output. In order to do so, it is possible to enlarge and output by a predetermined ratio based on the center.

For example, as both the video content 300 and the graphic content 400 are enlarged by a predetermined ratio, a problem occurs in which a region is cropped and output as shown in FIG. 5(a).

5(b) is a diagram for explaining a case in which graphic content 400 whose size is reduced by the electronic device 100 is output when the output resolution of the electronic device 100 is equal to or less than a preset resolution.

If the output resolution of the electronic device 100 according to an embodiment of the present disclosure is equal to or less than a preset resolution, the size of the graphic content 400 is reduced by a preset ratio and overlaid on the video content 300. can make it As shown in FIG. 4 , the graphic content 400 may be reduced in size based on 10-2 instead of 10-1 and overlaid on the video content 300 .

If the resolution of the received content is equal to or less than the preset resolution, the display device 200 according to an embodiment of the present disclosure may enlarge and output the video content 300 and the graphic content 400 by a preset ratio. Here, the video content 300 outputs an area of 10-2 (see FIG. 4) rather than 10-1 (see FIG. 4), and the graphic content 400 is cut off because it is reduced and overlaid based on 10-2. It can be output without an area.

As another example, if the output resolution of the electronic device 100 is equal to or less than the preset resolution, the electronic device 100 enlarges the video content 300 overlaid with the reduced graphic content 400 by a preset ratio to display the device. It can also be transmitted to (200). The display device 200 may identify whether or not the received content has a preset resolution or less, or output the received content as it is without enlarging it at a preset ratio. The display device 200 may not provide a region in which noise exists to the user, and may provide the graphic content 400 without a region being cut off.

6 is a diagram for explaining an electronic device according to another embodiment of the present disclosure.

The electronic device 100 may be implemented as a playback device, a source device, etc., but is not limited thereto. As shown in FIG. 6, the electronic device 100 has a display and can display video content and graphic content on its own. Of course it can.

According to an embodiment, when connected to the external device 100-1 such as USB, the electronic device 100 may reproduce and display content stored in the external device 100-1.

The electronic device 100 may identify the output resolution of the electronic device 100 based on at least one of the output resolution mode information of the electronic device 100 and the resolution of the content stored in the external device 100-1.

For example, when the electronic device 100 is set to a mode for outputting content stored in the external device 100-1 while maintaining the resolution of the content as it is, and the resolution of the content is equal to or less than a preset resolution, the electronic device 100 ) may reduce the size of the graphic content 400, such as the GUI, at a predetermined ratio. The reduced graphic content 400 may be output by overlaying the video content 300 obtained by playing the external device 100-1.

Here, the electronic device 100 may enlarge and output the video content 300 and the graphic content 400 at a predetermined ratio, and the video content 300 is cut out and output by a predetermined ratio of the outer area of the frame, The graphic content 400 can be output without a cutout area.

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

First, the output resolution of the electronic device is identified based on at least one of video content resolution information and output resolution mode information of the electronic device (S710).

Next, if the output resolution of the electronic device is less than or equal to the preset resolution (S720: Y), the size of the graphic content is reduced by a preset ratio, and the video content and the reduced graphic content are transmitted to the display device (S730).

If the output resolution of the electronic device exceeds the preset resolution (S720: N), video content and graphic content are transmitted to the display device (S740).

Here, the output resolution mode information indicates that the electronic device is set to a first mode for outputting video content at a default resolution or first information indicating that the electronic device is set to a second mode for outputting video content at a resolution of the video content. Second information may be included.

In addition, in step S730 of reducing the size of the graphic content by a preset ratio, if the output resolution mode information includes the first information and it is identified that the output resolution of the electronic device is equal to or less than the preset resolution based on the default resolution, the size of the graphic content is reduced by the preset ratio. can be reduced as much as

In addition, in step S730 of reducing the size of the graphic content by a preset ratio, if the output resolution mode information includes second information and it is identified that the output resolution of the electronic device is equal to or less than the preset resolution based on the resolution of the video content, the size of the graphic content is set to the preset size. It can be reduced by a set ratio.

In addition, in step S730 of reducing the output resolution by a predetermined ratio, if the output resolution of the electronic device is the first resolution, the size of the graphic content is reduced by the first ratio, and if the output resolution of the electronic device is a second resolution lower than the first resolution , The size of the graphic content is reduced by a second ratio, and the second ratio may be greater than the first ratio.

In addition, in step S730 of transmitting to the display device, the reduced graphic content may be overlaid on the video content and provided to the display device.

Also, in step S730 of reducing the video content by a predetermined ratio, the size of the graphic content may be reduced by a predetermined ratio based on the location of the graphic content on the frame of the video content, the size of the frame, and the center position of the frame.

Also, in step S730 of reducing the graphic content by a predetermined ratio, the size of the graphic content may be reduced by a predetermined ratio based on the center position of the graphic content.

Here, the preset resolution may be at least one of 480i and 480p.

8 is a flowchart illustrating a method of identifying an output resolution according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, in order to identify the output resolution of the electronic device, whether the output resolution mode of the electronic device is a default resolution mode is identified (S810).

Next, if the output resolution mode is the default resolution mode (S810: Y), it is identified whether the default resolution is equal to or less than a preset resolution (S820).

If the default resolution is less than or equal to the preset resolution (S820: Y), the size of the graphic content is reduced by a preset ratio (S840).

Then, the video content and the reduced graphic content may be transmitted to the display device (S850).

In addition, if the default resolution exceeds the preset resolution (S820: N), video content and graphic content may be transmitted to the display device (S850).

In addition, if the output resolution mode is not the default resolution mode (S810: N), it is identified whether the resolution of the video content is equal to or less than a preset resolution (S820).

If the resolution of the video content is less than or equal to the preset resolution (S830: Y), the size of the graphic content is reduced by a preset ratio (S840).

As another example, if the resolution of the video content exceeds the preset resolution (S830: N), the video content and graphic content may be transmitted to the display device (S850).

Meanwhile, various embodiments described above may be implemented in a recording medium readable by a computer or a similar device using software, hardware, or a combination thereof. In some cases, the embodiments described herein may be implemented by a processor itself. According to software implementation, embodiments such as procedures and functions described in this specification may be implemented as separate software modules. Each of the software modules may perform one or more functions and operations described herein.

Meanwhile, computer instructions for performing processing operations according to various embodiments of the present disclosure described above may be stored in a non-transitory computer-readable medium. Computer instructions stored in such a non-transitory computer readable medium may cause a specific device to perform processing operations according to various embodiments described above when executed by a processor.

A non-transitory computer readable medium refers to a medium that stores data semi-permanently and can be read by a device, not a medium that stores data for a short moment, such as a register, cache, or memory. Specific examples of the non-transitory computer readable medium may include a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

Although the preferred embodiments of the present disclosure have been shown and described above, the present disclosure is not limited to the specific embodiments described above, and is commonly used in the technical field belonging to the present disclosure without departing from the gist of the present disclosure claimed in the claims. Of course, various modifications and implementations are possible by those with knowledge of, and these modifications should not be individually understood from the technical spirit or perspective of the present disclosure.

100: electronic device 110: communication interface
120: processor

Claims (19)

In electronic devices,
communication interface; and
A processor providing video contents and graphic contents to an external display device through the communication interface;
the processor,
Identifying an output resolution of the electronic device based on at least one of output resolution mode information of the electronic device and resolution information of the video content;
If the output resolution of the electronic device is less than or equal to a preset resolution, overscan the video content;
Reduce the size of the graphic content by a preset ratio based on the output resolution of the electronic device;
Providing the overscanned video content and the size-reduced graphic content to the display device through the communication interface;
The preset ratio corresponds to a size of an outer area of the video content that is not output by the overscan. According to claim 1,
The output resolution mode information,
First information indicating that the electronic device is set to a first mode for outputting the video content at a default resolution, or second information indicating that the electronic device is set for a second mode for outputting the video content at a resolution of the video content. Including, electronic device. According to claim 2,
the processor,
When the output resolution mode information includes the first information and it is identified that the output resolution of the electronic device is equal to or less than the preset resolution based on the default resolution, the size of the graphic content is reduced by the preset ratio. Device. According to claim 2,
the processor,
When the output resolution mode information includes the second information and it is identified that the output resolution of the electronic device is equal to or less than the preset resolution based on the resolution of the video content, reducing the size of the graphic content by the preset ratio. , electronic devices. According to claim 1,
the processor,
If the output resolution of the electronic device is a first resolution, reducing the size of the graphic content by a first ratio;
When the output resolution of the electronic device is a second resolution lower than the first resolution, reducing the size of the graphic content by a second ratio;
The second ratio is greater than the first ratio, the electronic device. According to claim 1,
the processor,
An electronic device that overlays the reduced graphic content on the video content and provides it to the display device through the communication interface. According to claim 1,
the processor,
The electronic device that reduces the size of the graphic content by the predetermined ratio based on the location of the graphic content on the frame of the video content, the size of the frame, and the center position of the frame. According to claim 1,
the processor,
The electronic device that reduces the size of the graphic content by the predetermined ratio based on the center position of the graphic content. According to claim 1,
The preset resolution is at least one of 480i and 480p, the electronic device. In the control method of an electronic device,
identifying an output resolution of the electronic device based on at least one of video content resolution information and output resolution mode information of the electronic device;
performing an overscan on the video content if the output resolution is less than or equal to a predetermined resolution;
reducing the size of graphic content by a preset ratio based on the output resolution of the electronic device; and
Transmitting the overscanned video content and the size-reduced graphic content to a display device;
The preset ratio corresponds to a size of an outer area of the video content that is not output by the overscan. ◈Claim 11 was abandoned when the registration fee was paid.◈ According to claim 10,
The output resolution mode information,
First information indicating that the electronic device is set to a first mode for outputting the video content at a default resolution, or second information indicating that the electronic device is set for a second mode for outputting the video content at a resolution of the video content. Including, the control method. ◈Claim 12 was abandoned when the registration fee was paid.◈ According to claim 11,
The step of reducing by the predetermined ratio,
When the output resolution mode information includes the first information and it is identified that the output resolution of the electronic device is equal to or less than the preset resolution based on the default resolution, the size of the graphic content is reduced by the preset ratio. method. ◈Claim 13 was abandoned when the registration fee was paid.◈ According to claim 11,
The step of reducing by the predetermined ratio,
When the output resolution mode information includes the second information and it is identified that the output resolution of the electronic device is equal to or less than the preset resolution based on the resolution of the video content, reducing the size of the graphic content by the preset ratio. , the control method. ◈Claim 14 was abandoned when the registration fee was paid.◈ According to claim 10,
The step of reducing by the predetermined ratio,
If the output resolution of the electronic device is a first resolution, reducing the size of the graphic content by a first ratio;
When the output resolution of the electronic device is a second resolution lower than the first resolution, reducing the size of the graphic content by a second ratio;
The second ratio is greater than the first ratio, the control method. ◈Claim 15 was abandoned when the registration fee was paid.◈ According to claim 10,
The step of transmitting to the display device,
The control method of overlaying the reduced graphic content on the video content and providing it to the display device. ◈Claim 16 was abandoned when the registration fee was paid.◈ According to claim 10,
The step of reducing by the predetermined ratio,
and reducing the size of the graphic content by the predetermined ratio based on the location of the graphic content on the frame of the video content, the size of the frame, and the center position of the frame. ◈Claim 17 was abandoned when the registration fee was paid.◈ According to claim 10,
The step of reducing by the predetermined ratio,
The control method of reducing the size of the graphic content by the predetermined ratio based on the center position of the graphic content. ◈Claim 18 was abandoned when the registration fee was paid.◈ According to claim 10,
The preset resolution is at least one of 480i and 480p, the control method. ◈Claim 19 was abandoned when the registration fee was paid.◈ A non-transitory computer-readable medium storing computer instructions that, when executed by a processor of an electronic device, cause the electronic device to perform an operation, the operation comprising:
identifying an output resolution of a display device based on at least one of video content resolution information and output resolution mode information of the electronic device;
performing an overscan on the video content when the output resolution of the display device is equal to or less than a predetermined resolution;
reducing the size of graphic content by a preset ratio based on the output resolution of the display device; and
Transmitting the overscanned video content and the size-reduced graphic content to the display device;
The predetermined ratio corresponds to a size of an outer area of the video content that is not output by the overscan, the non-transitory computer-readable medium.

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