KR20170106893A - Image display device and operating method for the same - Google Patents

Abstract

The present invention provides an image display device and an operating method thereof, capable of allowing a user to rapidly change to a desired channel with a channel-up key input or a channel-down key input without using a number key. The image display device comprises: a detecting part detecting a first input pressing a channel-up key or a channel-down key for a long time and a second input releasing the channel-up key or the channel-down key; a display part displaying a channel scroll bar and a channel indicator; a processor; a memory storing channel information corresponding to at least one channel; and at least one program stored in the memory, and executed by the processor. The at least one program includes instructions to, in response to the first input, move the channel indicator to a first direction or a second direction on the channel scroll bar and control to display the channel information with respect to a channel corresponding to a point in which the channel indicator is located on the display part and, in response to the second input, convert a current channel into the channel corresponding to the point in which the channel indicator is located and display an image corresponding to the converted channel.

Description

Technical Field [0001] The present invention relates to an image display device and an operation method thereof,

Various embodiments relate to an image display apparatus and an operation method thereof, and more particularly, to an image display apparatus and an operation method thereof that can facilitate channel switching.

A video display device is a device having a function of displaying an image that a user can view. The user can view the broadcast through the video display device. A video display device displays a broadcast selected by a user among broadcast signals transmitted from a broadcast station on a display.

In addition, a smart TV providing various contents in addition to a broadcasting function is provided. The smart TV aims at analyzing and providing what the user desires without user's operation, rather than manually operating according to the user's selection.

On the other hand, in order to change the channel of the image display apparatus, a channel-up or channel-down key is generally used, or a channel number to be switched can be inputted by using a number key. Also, if the channel-up key or the channel-down key is pressed and held for a long time, a channel-up key or a channel-down key is generated at a predetermined time interval to switch the channel. At this time, if the number of channels stored in the image display device is large, there is a problem that it takes a long time to switch the entire channel.

Various embodiments can provide an image display apparatus and an operation method thereof that can quickly switch to a channel desired by a user through a channel-up key input or a channel-down key input without a numeric key.

An image display apparatus according to an exemplary embodiment includes a first input for depressing a channel-up key or a channel-down key and a second input for depressing the channel-up key or the channel- a memory for storing channel information corresponding to the at least one channel, and a memory for storing the channel information corresponding to at least one channel, Wherein the one or more programs cause the channel indicator to move in a first direction or a second direction on the channel scroll bar in response to the first input, Controls the display unit to display channel information on a channel corresponding to a point, and in response to the second input, PL is switched to a channel corresponding to a point, it may include an instruction to (instructions) for displaying an image corresponding to the switched channel.

A method of operating an image display apparatus according to an exemplary embodiment includes displaying a channel scroll bar and a channel indicator, sensing a first input that a long press of a channel-up key or a channel-down key, Moving the channel indicator in a first direction or a second direction on the channel scroll bar in response to the first input and displaying channel information for a channel corresponding to the location of the channel indicator, - detecting a second input releasing the up key or the channel down key and responsive to the second input to cause the current channel to correspond to a point at which the channel indicator is located And displaying an image corresponding to the switched channel.

The image display apparatus according to an embodiment can quickly change a channel to a desired channel without a numeric key.

1 is a view showing an image display apparatus and a control apparatus according to an embodiment.
2 is a block diagram illustrating a configuration of an image display apparatus according to an exemplary embodiment.
3 is a block diagram showing a configuration of a video display device according to another embodiment.
4 is a block diagram showing a configuration of a control apparatus according to an embodiment.
5A to 5E are views showing an example of a screen displayed on an image display device according to an exemplary embodiment.
6A and 6B are views illustrating an example of a screen displayed on an image display device according to an exemplary embodiment.
7A to 7C are views illustrating an example of a screen displayed on an image display apparatus according to an exemplary embodiment.
FIGS. 8A and 8B are views referenced to illustrate the rate at which a channel indicator according to one embodiment moves on a channel scroll bar. FIG.
9 is a flowchart illustrating an operation method of an image display apparatus according to an exemplary embodiment.

The terms used in this specification will be briefly described and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements, without departing from the spirit or scope of the present invention. Also, the terms "part," " module, "and the like described in the specification mean units for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

1 is a view showing an image display apparatus and a control apparatus according to an embodiment.

As shown in FIG. 1, the image display apparatus 100 may be a television (TV), but this is merely an example and may be embodied as an electronic device capable of receiving a broadcast signal and displaying an image based on the broadcast signal . For example, the image display apparatus 100 may be a mobile phone, a tablet PC, a digital camera, a camcorder, a laptop computer, a tablet PC, a desktop, an electronic book terminal, a digital broadcast terminal, a PDA (Personal Digital Assistants) Portable multimedia players), navigation, MP3 players, wearable devices, and the like. In particular, the embodiments can be easily implemented in a display device having a large display such as a TV, but the present invention is not limited thereto.

Also, the video display device 100 may be a fixed or mobile type, and may be a digital broadcasting receiver capable of receiving digital broadcasting. Also, the image display apparatus 100 may be implemented not only as a flat display device but also as a curved display device having a curvature screen or a flexible display device capable of adjusting a curvature. The output resolution of the video display device 100 may include, for example, a clearer resolution than HD (High Definition), Full HD, Ultra HD, or Ultra HD.

The control device 300 may be implemented as various types of devices for controlling the image display device 100 such as a remote controller or a cellular phone. In addition, the control device 300 can control the image display device 100 using near-field communication including infrared or bluetooth. The control device 300 includes a key (including a hard key button, a soft key, a scroll wheel, etc.), a touch pad, a microphone (not shown) (Not shown) capable of recognizing the motion of the image display apparatus 100. [0035]

The control device 300 may include a channel-up key or a channel-down key for changing the channel of the video display device 100. [ In addition, the channel up-key or channel-down key may be implemented as a hard key button, a soft key, a scroll wheel, or the like. When receiving the channel-up key or channel-down key input, the image display apparatus 100 can switch the current channel to the previous channel or the next channel.

In the present embodiment, the term " user " means a person who controls the function or operation of the image display apparatus 100 using the control apparatus 300, and may include a viewer, an administrator, have.

Meanwhile, the image display apparatus 100 according to an exemplary embodiment may display the channel scroll bar 10 and the channel indicator 20 on the display unit. 1, the channel scroll bar 10 is displayed on the right side of the display unit in the form of a vertical scroll bar, but the present invention is not limited thereto. The channel scroll bar 10 may be displayed on the left, And can be displayed in the form of a horizontal scroll bar. The channel indicator 20 may be displayed on the channel scroll bar 10 and may indicate the position of the channel corresponding to the channel information 30 displayed on the display unit among the entire channels. The image display apparatus 100 may display the channel information 30 for the channel corresponding to the position of the channel indicator 20 on the channel scroll bar 10 on the display unit. The channel information 30 may include a channel name for the channel, a broadcast name for providing the channel, a channel number, a type of the content corresponding to the channel, a content name of the content, and the like.

The image display apparatus 100 according to an exemplary embodiment may display the channel indicator 20 on the channel scroll bar or the channel scroll bar in response to a long press input of the channel- In the first direction or in the second direction. At this time, long press input means input which keeps depressing the key longer than the critical time after pressing the key. For example, the time difference between the time when the key is pressed and the time when the key is released is equal to or longer than the threshold time.

For example, as shown in FIG. 1, when the channel scroll bar 10 is a vertical scroll bar, the image display device 100 displays the channel indicator 20 upward And moves the channel indicator 20 down, corresponding to an input that depresses the channel-down key. Alternatively, if the channel scroll bar 10 is a horizontal scroll bar, the image display device 100 may move the channel indicator 20 to the left or right in response to an input that depresses the channel-up key or the channel-down key. have. However, the present invention is not limited thereto. Also, the image display apparatus 100 may display channel information 30 for a channel corresponding to a point where the channel indicator 20 is moved on the display unit.

2 is a block diagram illustrating a configuration of an image display apparatus according to an exemplary embodiment.

2, an image display apparatus 100 according to an exemplary embodiment of the present invention may include a sensing unit 110, a processor 120, a display unit 130, and a memory 140.

The sensing unit 110 may sense a user input and transmit the sensed signal to the processor 120 according to an exemplary embodiment of the present invention. In addition, the sensing unit 110 may sense user inputs such as channel-up / down, power on / off, channel selection, and screen setting from the controller 300. In addition, the sensing unit 110 according to an exemplary embodiment of the present invention may include a long press of an input, a channel-up key, or a channel-down key of a channel-up key or a channel-down key included in the controller 300, An input for releasing a channel-up key or a channel-down key, or the like.

The display unit 130 converts a video signal, a data signal, an OSD signal, a control signal, and the like processed by the processor 120 to generate a driving signal. The display unit 130 may be a PDP, an LCD, an OLED, a flexible display, or a 3D display. Also, the display unit 130 may be configured as a touch screen and used as an input device in addition to the output device.

The display unit 130 according to an exemplary embodiment may display a channel scroll bar and a channel indicator. Also, the display unit 130 may display channel information for a channel corresponding to a point where the channel indicator is located on the channel scroll bar.

The processor 120 according to one embodiment may execute one or more programs stored in the memory 140. The processor 140 may include single core, dual core, triple core, quad core, and cores thereof. In addition, the processor 120 may include a plurality of processors. For example, the processor 120 may be implemented as a main processor (not shown) and a sub processor (not shown) operating in a sleep mode.

The memory 140 according to one embodiment may store various data, programs, or applications for driving and controlling the image display apparatus 100. [

The memory 140 according to one embodiment may store channel information corresponding to at least one channel and at least one channel. At this time, at least one channel may include an effective channel. The effective channel may mean a channel through which the video display device 100 can receive a broadcast signal corresponding to the channel. In addition, the image display apparatus 100 may periodically update the channel information stored in the memory 140.

Also, a program stored in the memory 140 may include one or more instructions. Programs (one or more instructions) or applications stored in the memory 140 may be executed by the processor 120.

The processor 120 according to an exemplary embodiment may compare the number of channels stored in the memory 140 with a predetermined number to determine whether to display the channel scroll bar and the channel indicator.

The processor 120 in accordance with one embodiment may control to move the channel indicator in a first direction or a second direction on the channel scroll bar in response to a first input that depresses the channel-up key or the channel- have. In addition, the processor 120 may control the display unit 130 to display channel information for a channel corresponding to a point at which the channel indicator is located.

The processor 120 controls the channel indicator to move from the first point on the channel scroll bar to the second point adjacent to the first point in the first direction, and the channel information of the first channel corresponding to the first point The channel information of the second channel which is the next channel of the first channel can be controlled to be displayed. Alternatively, the processor 120 moves the channel indicator to a first point at a first point on the channel scroll bar and to a third point adjacent to the first point in a second direction, and transmits the channel information of the first channel to the first channel, It is possible to change the channel information of the three channels and display the channel information.

In addition, the processor 120 may control to switch the current channel to a channel corresponding to a point at which the channel indicator is located, in response to a second input for releasing the channel-up key or the channel-down key. For example, the processor 120 may receive a broadcast signal corresponding to the switched channel, and may control the display unit 130 to display an image generated based on the received broadcast signal.

The processor 120 according to one embodiment may determine a channel corresponding to a point at which the channel indicator is located, based on the relative position of the channel indicator on the channel scroll bar.

3 is a block diagram showing a configuration of a video display device according to another embodiment. The video display device 200 of FIG. 3 may be an embodiment of the video display device 100 of FIG.

3, an image display apparatus 200 according to an exemplary embodiment of the present invention includes a controller 210, a display 220, a sensing unit 230, a video processor 280, an audio processor 215, A power supply unit 260, a tuner unit 240, a communication unit 250, an input / output unit 270, and a storage unit 290.

The sensing unit 110 of FIG. 2 corresponds to the sensing unit 230 of FIG. 3, the processor 120 of FIG. 2 corresponds to the control unit 210 of FIG. 3, the memory 140 of FIG. 2 corresponds to the storage unit 290, and the display unit 130 of FIG. 2 may correspond to the display unit 220 of FIG. 3, respectively. The same contents as those described in FIG. 2 will be omitted from FIG.

The communication unit 250 can transmit and receive data or signals to / from an external device or a server under the control of the control unit 210. [ The control unit 210 can transmit / receive content to / from an external device connected through the communication unit 250, download an application from an external device, or browse the web. The communication unit 251 communicates with the video display apparatus 200 through at least one of a wireless LAN (for example, Wi-Fi), Bluetooth, and wired Ethernet Or send and receive signals. The communication unit 250 may include a combination of a wireless LAN 251, a Bluetooth 252, and a wired Ethernet (Ethernet) 253. The communication unit 250 may further include a near field communication (for example, near field communication (NFC), bluetooth low energy (not shown), and the like) in addition to Bluetooth.

The tuner unit 240 amplifies, broadcasts, and resonates broadcast signals received by wire or wireless, and transmits only a frequency of a channel to be received by the image display apparatus 100 among many radio wave components You can select by tuning. The broadcast signal includes audio, video and additional information (for example, EPG (Electronic Program Guide)).

The tuner unit 240 is connected to the tuner unit 240 according to a user input (for example, a control signal received from the control device 300, such as a channel number input, a channel up / down input, The broadcast signal can be received in the frequency band corresponding to the channel number.

The tuner unit 240 can receive broadcast signals from various sources such as terrestrial broadcast, cable broadcast, satellite broadcast, internet broadcast, and the like. The tuner unit 240 may receive a broadcast signal from a source such as an analog broadcasting or a digital broadcasting. The broadcast signal received through the tuner unit 240 is decoded (for example, audio decoding, video decoding or side information decoding) and separated into audio, video and / or additional information. The separated audio, video, and / or additional information may be stored in the image display device 200 under the control of the control unit 210.

The tuner section 240 of the image display apparatus 200 may have one or a plurality of tuner sections 240. The tuner unit 240 may be implemented as an all-in-one apparatus with the image display apparatus 200 or a separate apparatus having a tuner unit electrically connected to the image display apparatus 200 (for example, a set- a set-top box (not shown), and a tuner unit (not shown) connected to the input / output unit 270).

The video processing unit 280 performs processing on the video data received by the video display device 200. [ The video processing unit 280 may perform various image processing such as decoding, scaling, noise filtering, frame rate conversion, resolution conversion, and the like on the video data.

The display unit 220 displays a video included in the broadcast signal received through the tuner unit 240 on the screen under the control of the controller 210. [ The display unit 220 may display content (e.g., moving image) input through the communication unit 250 or the input / output unit 270. The display unit 220 may output an image stored in the storage unit 290 under the control of the controller 210. [ In addition, the display unit 220 may include a voice UI (including a voice command word guide) for performing a voice recognition task corresponding to voice recognition, or a voice recognition unit for performing a motion recognition task corresponding to motion recognition And may display a motion UI (e.g., including a user motion guide for motion recognition).

The audio processing unit 215 performs processing on the audio data. In the audio processing unit 215, various processes such as decoding and amplification of audio data, noise filtering, and the like may be performed. Meanwhile, the audio processing unit 215 may include a plurality of audio processing modules for processing audio corresponding to a plurality of contents.

The audio output unit 225 outputs the audio included in the broadcast signal received through the tuner unit 240 under the control of the control unit 280. The audio output unit 225 may output audio (e.g., voice, sound) input through the communication unit 250 or the input / output unit 270. [ The audio output unit 225 may output the audio stored in the storage unit 290 under the control of the control unit 210. The audio output unit 225 may include at least one of a speaker 226, a headphone output terminal 227, or a Sony / Philips Digital Interface (S / PDIF) A speaker 226, a headphone output terminal 227, and an S / PDIF output terminal 228.

The power supply unit 260 supplies power from the external power source to the internal components of the video display device 200 under the control of the controller 210. [ In addition, the power supply unit 260 can supply power to the internal components from one or more batteries (not shown) located inside the video display device 200 under the control of the controller 210. [

The sensing unit 230 senses the user's voice, the user's image, or the user's interaction.

The microphone 231 receives the utterance voice of the user. The microphone 231 converts the received voice into an electrical signal and outputs the electrical signal to the control unit 210. The user voice may include, for example, a voice corresponding to the menu or function of the video display device 200. [ The microphone 431 may be integrated with the image display device 200 or separately. The separated microphone 231 may be electrically connected to the image display apparatus 200 through the communication unit 250 or the input / output unit 270.

The camera unit 232 receives an image (e.g., a continuous frame) corresponding to the motion of the user including the gesture in the camera recognition range. The user motion may include, for example, a user's body part, such as a user's face, a facial expression, a hand, a fist, a finger, or a motion of a part of a user. The camera unit 232 converts the received image into an electric signal and outputs the converted electric signal to the controller 210 under the control of the controller 210.

The control unit 210 may select a menu displayed on the video display device 200 or perform control corresponding to the motion recognition result using the recognition result of the received motion. For example, channel adjustment, volume adjustment, indicator movement, and cursor movement.

The light receiving unit 233 receives an optical signal (including a control signal) received from an external control apparatus through an optical window (not shown) of the bezel of the display unit 220 or the like. The light receiving unit 233 can receive an optical signal corresponding to a user input (e.g., touch, pressed, touch gesture, voice, or motion) from the control apparatus. The control signal can be extracted from the received optical signal under the control of the control unit 210. [

The input / output unit 270 receives the video (e.g., video, etc.), audio (e.g., audio, music, etc.), and additional information (e.g., video) from the outside of the video display device 200 under the control of the controller 210 For example, an EPG, etc.). The input / output unit 270 includes one of a high-definition multimedia interface port 271, a component jack 272, a PC port 273, and a USB port 274 . ≪ / RTI > Input / output portion 270 may include a combination of HDMI port 271, component jack 272, PC port 273, and USB port 274.

It will be readily understood by those skilled in the art that the configuration and operation of the input / output unit 270 can be variously implemented in accordance with the embodiments of the present invention.

The controller 210 controls the overall operation of the image display apparatus 200 and the signal flow between the internal components of the image display apparatus 200 and processes data. The control unit 210 can execute an OS (Operation System) and various applications stored in the storage unit 290 when the user inputs or pre-set conditions are satisfied.

The control unit 210 stores signals or data input from the outside of the image display apparatus 200 or a RAM (Random Access Memory) 281 used as a storage area corresponding to various jobs performed in the image display apparatus 200, (ROM) 282 and a processor (Processor) 283 in which a control program for controlling the display device 200 is stored.

The processor 283 may include a graphic processor (not shown) for graphics processing corresponding to the video. The processor 283 may be implemented as a SoC (System On Chip) incorporating a core (not shown) and a GPU (not shown).

The graphic processing unit 284 generates a screen including various objects such as an icon, an image, and text using an operation unit (not shown) and a rendering unit (not shown). The operation unit calculates an attribute value such as a coordinate value, a shape, a size, and a color to be displayed by each of the objects according to the layout of the screen using the user input sensed through the sensing unit 230. The rendering unit generates screens of various layouts including the objects based on the attribute values calculated by the operation unit. The screen generated by the rendering unit is displayed in the display area of the display unit 220.

The first through n interfaces 285-1 through 285-n are connected to the various components described above. One of the interfaces may be a network interface connected to an external device via a network.

The RAM 281, the ROM 282, the processor 283, the graphics processing unit 284 and the first through n interfaces 285-1 through 285-n may be interconnected via an internal bus 286 .

In this embodiment, the term " control unit of the image display apparatus " includes a processor 283, a ROM 282, and a RAM 281. [

The storage unit 290 may store various data, programs or applications for driving and controlling the video display device 200 under the control of the control unit 210. [ The storage unit 290 includes a video processing unit 280, a display unit 220, an audio processing unit 215, an audio output unit 225, a power supply unit 230, a tuner unit 240, a communication unit 250, 230, and input / output signals or data corresponding to the driving of the input / output unit 270. The storage unit 290 includes a control program for controlling the video display device 200 and the control unit, a graphical user interface (GUI) related to an application or an application initially provided or downloaded from a manufacturer, an object Image text, icons, buttons, etc.), user information, documents, databases or related data.

In one embodiment, the term " storage unit " includes a storage unit 290, a ROM 282, a RAM 281 or a memory card (e.g., micro SD card, USB Memory, not shown). In addition, the storage unit 290 may include a nonvolatile memory, a volatile memory, a hard disk drive (HDD), or a solid state drive (SSD).

The storage unit 290 includes a broadcast receiving module, a channel control module, a volume control module, a communication control module, a voice recognition module, a motion recognition module, a light receiving module, a display control module, an audio control module, A power control module, an external device power control module, a voice database (DB), or a motion database (DB), which are connected in a wireless manner (e.g., Bluetooth). Unshown modules and a database of the storage unit 290 are used to control a function of controlling reception of broadcasting, a channel control function, a volume control function, a communication control function, a voice recognition function, a motion recognition function, A control function, a display control function, an audio control function, an external input control function, a power control function, or a power control function of an external device connected by wireless (for example, Bluetooth). The control unit 210 can perform respective functions using the software stored in the storage unit 290. [

The video display device 200 having the display unit 220 may be electrically connected to a separate external device having a tuner unit. For example, the image display apparatus 200 may be implemented as an analog TV, a digital TV, a 3D-TV, a smart TV, an LED TV, an OLED TV, a plasma TV, a monitor, And will be readily understood by those of ordinary skill in the art.

Meanwhile, the block diagrams of the image display apparatuses 100 and 200 shown in FIGS. 2 and 3 are block diagrams for one embodiment. Each component of the block diagram can be integrated, added, or omitted according to the specifications of the video display devices 100 and 200 actually implemented. That is, two or more constituent elements may be combined into one constituent element, or one constituent element may be constituted by two or more constituent elements, if necessary. In addition, the functions performed in each block are intended to illustrate embodiments, and the specific operation or apparatus does not limit the scope of the present invention.

4 is a block diagram showing a configuration of a control apparatus according to an embodiment.

4, the controller 300 includes a wireless communication unit 320, a user input unit 330, a sensor unit 340, an output unit 350, a power supply unit 360, a storage unit 370, 380).

The wireless communication unit 320 can transmit and receive signals to and from any one of the video display devices according to the above-described embodiments. The wireless communication unit 320 may include an RF module 321 capable of transmitting and receiving signals to and from the video display device 100 according to the RF communication standard. In addition, the control device 300 may include an IR module capable of transmitting and receiving signals to and from the image display device 100 according to the IR communication standard.

The control device 300 can transmit a command regarding power on / off, channel change, volume change, and the like to the image display device 100 through the IR module 323 as needed.

The user input unit 330 may include a keypad, a button, a touch pad, or a touch screen. A user can input a command related to the image display apparatus 100 to the control apparatus 300 by operating the user input unit 330. [ When the user input unit 330 includes a hard key button, the user can input a command related to the video display device 100 to the control device 300 through the operation of pressing the hard key button. When the user input unit 330 includes a touch screen, the user may touch a soft key of the touch screen to input a command related to the image display apparatus 100 to the control apparatus 300. [ For example, the user input 330 may include a channel-up key or a channel-down key for changing the channel. In addition, the channel up-key or channel-down key may be composed of a hard key button, a soft key, a scroll wheel, or the like. In addition, the user input unit 330 may include various types of input means such as a scroll key, a jog key, and the like that can be operated by the user.

If the channel-up key or channel-down key is configured as a scroll wheel, a continuous scroll-up input that moves the scroll wheel upward beyond a predetermined number of times, or a continuous scroll that moves the scroll wheel downward beyond a predetermined number of times Down-input may correspond to an input that depresses the channel-up key or the channel-down key according to one embodiment. It may also correspond to an input for releasing a channel-up key or a channel-down key according to an embodiment if there is no scroll input for a period of time after a continuous scroll-up input or a continuous scroll-down input.

Also, the user input unit 330 may include a touch pad. The user input unit 330 according to an embodiment may receive a user input that is dragged, touched or flipped through the touch pad of the controller 300. [ Further, the video display device 100 can be controlled according to the type of received user input (for example, the direction in which the drag command is input, the time at which the touch command is input).

For example, an input that is dragged through the touch pad may correspond to an input that depresses a channel-up key or a channel-down key according to an embodiment. After the drag, an input for releasing a touch tool, May correspond to an input for releasing a channel-up key or a channel-down key according to an embodiment.

The sensor unit 340 may include a gyro sensor 341 or an acceleration sensor 343. The gyro sensor 341 can sense information on the motion of the control device 300. [ The acceleration sensor 343 can sense information on the moving speed and the like of the control device 300. [ Meanwhile, it is possible to further include a distance measuring sensor, whereby the distance to the image display apparatus 100 can be sensed.

The output unit 350 may output an image or voice signal corresponding to the operation of the user input unit 330 or corresponding to the signal received by the image display apparatus 100. [ The user can recognize whether the user input unit 330 is operated or whether the image display apparatus 100 is controlled through the output unit 250.

For example, the output unit 350 may include an LED module that is turned on when a user input unit 330 is operated or a signal is transmitted and received with the image display apparatus 100 through the wireless communication unit 220, a vibration module that generates vibration, , Or a display module for outputting an image.

The power supply unit 360 supplies power to the controller 300.

The storage unit 370 may store various types of programs, application data, and the like necessary for the control or operation of the controller 300. [

The control unit 380 controls various matters related to the control of the control device 300. [ The control unit 380 transmits a signal corresponding to the predetermined key operation of the user input unit 330 or a signal corresponding to the motion of the control device 300 sensed by the sensor unit 340 to the video display device 100).

The transmission signal of the control device 200 sensed through the sensing unit 130 is transmitted to the processor 120 of the image display device 100. The processor 120 can determine the information about the operation of the control device 300 and the key operation from the signal transmitted from the control device 200, and control the video display device 100 accordingly.

5A to 5E are views showing an example of a screen displayed on an image display device according to an exemplary embodiment.

Referring to FIG. 5A, the image display apparatus 100 according to an exemplary embodiment may receive a control signal from the controller 300, and may control the image display apparatus 100 based on the received control signal.

The controller 300 according to an exemplary embodiment may transmit and receive a signal to and from the image display apparatus 100 according to an IR or RF communication standard. However, the present invention is not limited thereto. In addition, the control device 300 may include a channel-up key or a channel-down key. The channel-up key or channel-down key may comprise a hard key button or a soft key. Alternatively, the channel-up key or the channel-down key may comprise a scroll wheel.

The user can input a command related to the video display device 100 to the control device 300 by operating the key of the control device 300. [ For example, the user may instruct the control device 300 to display a command related to the video display device 100 through an operation of pressing a channel-up key or a channel-down key, or an operation of touching a channel-up key or a channel- (For example, to switch to the next channel or switch to the previous channel).

The control device 300 may transmit a control signal corresponding to a user command to the video display device 100. In response to the control signal, the video display device 100 may switch the current channel to the next channel, can do. For example, as shown in FIG. 5A, the image display apparatus 100 displays a channel-up key input signal from the control device 300 in a state where an image for a current channel (for example, 374 channels) is displayed . Upon receiving the channel-up key input signal, the image display apparatus 100 can convert the current channel (for example, 374 channels) to the next channel (375 channels) as shown in FIG. 5B. The image display apparatus 100 can receive a broadcast signal corresponding to the next channel (for example, 375 channels) and display an image corresponding to the next channel (for example, 375 channels) on the display unit. In addition, when receiving the channel-down key input signal, the image display apparatus 100 can switch the current channel to the previous channel.

Also, the image display apparatus 100 can display channel information corresponding to the channel to be switched. For example, as shown in FIG. 5B, the image display apparatus 100 may display a channel number 430 (for example, '375') of a channel to be switched, For example, '374') or the next channel number (e.g., '376').

Also, the image display apparatus 100 can terminate the channel information display if no input is received for a certain period of time after the channel is switched.

On the other hand, when receiving the input signal for pressing the channel-up key long or the input signal for pressing the channel-down key long from the control device 300, Similarly, a channel scroll bar 410 and a channel indicator 420 may be displayed. Alternatively, when the image display apparatus 100 receives an input signal that continuously presses the channel-up key or the channel-down key more than a predetermined number of times from the control device 300, the channel scroll bar 410 and the channel indicator 420 ) Can be displayed. Alternatively, the image display apparatus 100 may display the channel scroll bar 410 and the channel indicator 420 when receiving a specific key input. However, the present invention is not limited thereto.

5C, the channel scroll bar 410 is displayed on the right side of the display unit in the form of a vertical scroll bar, but the present invention is not limited thereto. The channel scroll bar 410 may be displayed on the left, And can be displayed in the form of a horizontal scroll bar. In addition, the channel indicator 420 may be displayed on the channel scroll bar 410.

In addition, the channel scroll bar 410 may include a plurality of points through which the channel indicator may move. In addition, the plurality of points may correspond to each of the plurality of channels stored in the image display apparatus 100. For example, if the entire channel stored in the image display apparatus 100 is 1000 channels from channel 1 to channel 1000, the channel scroll bar 410 may include the first point to the 1000th point. At this time, distances between adjacent points may be the same.

The image display apparatus 100 may determine a channel corresponding to a point where the channel indicator 420 is located and display channel information 430 corresponding to the determined channel on the display unit. At this time, the image display apparatus 100 can determine a channel corresponding to a point where the channel indicator 420 is located, based on the relative position of the channel indicator 420 on the channel scroll bar 410. For example, the ratio (L2 / L1) of the distance L2 from the starting point of the channel scroll bar 410 to the point at which the channel indicator 420 is located with respect to the overall size L1 of the channel scroll bar 410 is 0.375, the image display apparatus 100 can determine the 375th channel out of 1000 total channels as a channel corresponding to the point where the channel indicator 420 is located. Also, the image display apparatus 100 can display channel information (e.g., channel number '375') for the 375th channel on the display unit.

In addition, the channel indicator 420 may indicate the position of the channel corresponding to the channel information 430 displayed on the display unit among the entire channels. For example, the overall size L1 of the channel scroll bar 410 corresponds to the total number of channels stored in the image display device 100, and the distance from the start point of the channel scroll bar 410 to the point at which the channel indicator is located (L2) may correspond to the order of the channels corresponding to the channel information 430 among all the channels.

For example, as shown in FIG. 5C, when the channel corresponding to the channel information 430 (for example, the channel number '375') displayed on the display unit is the 375th channel among the entire channels (channel 1 to channel 1000) For channels, L2 / L1 may be 0.375. In addition, the point where the channel indicator 420 is located may be the 375th point of the first point to the 1000th point.

The image display apparatus 100 may also display the channel indicator 420 on the channel scroll bar 410 in the first direction 420 when the input signal for long depressing the channel up key or the input signal for long depressing the channel down key is received, Or in a second direction. In addition, the image display apparatus 100 can change the channel information 430 displayed on the display unit. For example, the image display device 100 may move the channel indicator 420 up on the channel scroll bar 410 when an input signal that continuously depresses the channel-up key is received continuously. At this time, the image display apparatus 100 can move the channel indicator 420 on the channel scroll bar 410 by a predetermined interval. For example, the image display apparatus 100 may move the channel indicator 420 to a position adjacent to the current position of the current channel indicator 420 among the plurality of positions. In addition, the time at which the channel indicator 420 moves from the start point to the end point of the plurality of points may be the same regardless of the number of all channels stored in the image display apparatus 100.

In addition, the video display device 100 can continuously change the channel number to the next channel number or the previous channel number whenever the channel indicator moves to an adjacent point. For example, as shown in FIG. 5D, as the channel indicator moves upward, the image display apparatus 100 displays channel numbers 376, 377, ..., , 624, and 625 in this order. Also, when the channel number '625' is displayed on the image display device 100, the channel indicator 420 may be located at the 625th point among the plurality of points. In addition, L2 (the point at which the channel indicator is located from the starting point of the channel scroll bar) / L1 (total size of the channel scroll bar) may be 0.625.

On the other hand, while the input to hold the channel-up key or the channel-down key is held (for example, while the channel indicator is moving on the channel scroll bar), the video display device 100 displays the channel screen May not change. For example, referring to FIGS. 5C and 5D, while the channel number is changed from '375' to '625', the image display apparatus 100 can continuously display the image 440 corresponding to 375 channels . However, the present invention is not limited thereto.

The input signal that depresses the channel-up key according to one embodiment may include a plurality of consecutive pressed key signals. The image display apparatus 100 may switch the current channel to the next channel in response to the first press key signal among the plurality of press key signals as described with reference to FIG. In addition, in response to the second and subsequent press key signals of the plurality of press keys, the channel indicator is moved on the channel scroll bar, as shown in FIGS. 5C and 5D, Information.

Meanwhile, the image display apparatus 100 according to an exemplary embodiment may receive an input signal for releasing a channel-up key or a channel-down key that has been held down from the controller 300 for a long time. When receiving an input for releasing a channel-up key or a channel-down key, the image display apparatus 100 can switch the current channel to a channel corresponding to a point at which the channel indicator is located. For example, the image display apparatus 100 determines a point at which a channel indicator is located at the time of receiving an input for releasing a channel-up key or a channel-down key, You can switch.

For example, as shown in FIG. 5E, at the time of receiving an input for releasing a channel-up key or a channel-down key, the channel indicator is located at the 625nd position on the channel scroll bar, In the case of 625 channels, the image display apparatus 100 can convert the current channel (for example, 375 channels) to 625 channels. The image display apparatus 100 can receive a broadcast signal corresponding to 625 channels and display an image 450 corresponding to 625 channels on the display unit.

The image display apparatus 100 may terminate the display of the channel scroll bar 410 and the channel indicator 420 when the channel is switched and the key input is not received.

6A and 6B are views illustrating an example of a screen displayed on an image display device according to an exemplary embodiment.

The image display device 100 according to an embodiment may move the channel indicator 520 up on the channel scroll bar 510 in response to an input that depresses the channel up key. The channel indicator 520 may continue to move up and may be located at an end point (e.g., the 1000th point) of the plurality of points included in the channel scroll bar, as shown in FIG. 6A. When the channel indicator 520 is located at the end point, the image display apparatus 100 corresponds to the last channel (for example, the 1000th channel) among the entire channels (for example, the first channel to the 1000th channel) (For example, channel number '1000') to be displayed on the display unit. However, the present invention is not limited thereto.

6B, when the channel indicator 520 is positioned at the end point, and the input to continue depressing the channel up key is received, the image display apparatus 100 displays the channel indicator 520 in a plurality of (E.g., the first point) from the end point (e.g., the 1000th point) of the points of the first point. When the channel indicator 520 is located at the start point, the channel information 530, which corresponds to the first channel (e.g., the first channel) of all the channels (e.g., the first channel to the 1000th channel) For example, channel number '1') on the display unit.

Alternatively, in response to an input that depresses the channel-down key, and subsequently moving the channel indicator 520 down on the channel scroll bar 510, the channel indicator 520 may include a plurality of It can be located at the starting point of the points. When the channel indicator 520 is located at the start point and the input for continuing to depress the channel down key is received, the image display apparatus 100 starts the channel indicator 520 as shown in FIG. 6A From the point to the end point can be moved.

7A to 7C are views illustrating an example of a screen displayed on an image display apparatus according to an exemplary embodiment.

Referring to FIG. 7A, when receiving an input signal for depressing a channel-up key for a long time or an input signal for depressing a channel-down key for a long time from the controller 300, A bar 610 and a channel indicator 620 can be displayed. At this time, the channel scroll bar 610 may include a plurality of areas 610a, 610b, 610c, and 610d. Each of the plurality of regions may correspond to a channel group.

The image display apparatus 100 may divide all channels stored in the image display apparatus 100 into a plurality of channel groups according to a specific criterion. For example, the image display apparatus 100 may generate a plurality of channel groups by grouping a plurality of channels according to the type of contents provided in the channel. At this time, the plurality of channel groups may include a movie channel group, a sports channel group, an entertainment / entertainment channel group, a current channel group, and the like.

Alternatively, the video display apparatus 100 may generate a plurality of channel groups by grouping a plurality of channels according to a source of a broadcasting signal. At this time, the plurality of channel groups may include a terrestrial broadcast channel group, a cable broadcast channel group, a satellite broadcast channel group, an Internet broadcast channel group, and the like.

Referring again to FIG. 7A, the image display apparatus 100 may associate channels included in a first channel group (for example, a sports channel group) among a plurality of channel groups with a first region 610a, The channels included in the second channel group (e.g., the entertainment channel group) and the channels included in the third channel group (e.g., the movie channel group) are displayed in the second area 610b and the third area 610c , The channels included in the fourth channel group (for example, the current channel group) may correspond to the fourth region 610d. At this time, the size of the area corresponding to the channel group may be proportional to the number of channels included in the channel group. Also, the image display apparatus 100 may receive a specific key input and change the display order of the regions corresponding to the channel group.

On the other hand, as shown in FIG. 7A, when the control device 300 receives an input signal for depressing the channel-up key for a long time or an input signal for depressing the channel-down key for a long time, The channel information 630 corresponding to the channel or the previous channel can be displayed on the display unit. For example, if the next channel or the previous channel is the channel 375, the channel number '375' can be displayed on the display unit.

In addition, the channel indicator 620 can be displayed in an area corresponding to a channel group including a next channel or a previous channel among the plurality of areas 610a, 610b, 610c, and 610d of the channel scroll bar 610. For example, if the next channel or previous channel is included in the entertainment / entertainment channel group, the video display device 100 may display the channel indicator 620 in the second area 610b.

In addition, the channel indicator may be displayed at a position corresponding to the next channel or a previous channel among the channels included in the channel group including the next channel or the previous channel. For example, the size L3 of the second area corresponds to the total number of channels included in the entertainment / entertainment channel group, and the distance L4 from the start point of the second area to the point where the channel indicator 630 is located, May correspond to the order of the channel 375 among the channels included in the entertainment / entertainment channel group. For example, if the entertainment / entertainment channel group includes 400 channels and the channel 375 corresponds to the 200th channel among the 400 channels, L4 / L3 may be 0.5.

In addition, the image display apparatus 100 can continuously move the channel indicator 620 up or down when an input signal that presses the channel-up key longer or an input signal that presses the channel down-key continuously is continuously received . At this time, when the channel indicator 620 moves on the second area 610b, channel information of the channels included in the entertainment / entertainment channel group can be displayed.

For example, the image display apparatus 100 may move the channel indicator 620 upward on the second area 610b when the input signal continuously depressing the channel-up key is continuously received. The image display apparatus 100 changes the channel number displayed on the display unit to a channel number corresponding to the next channel of the currently displayed channel number according to the channel order of the channels included in the entertainment / can do. For example, as shown in FIG. 7B, the image display apparatus 100 may display channel numbers 375, 387, 396, 410, ..., and ..., according to the channel order of the channels included in the entertainment / , 520, and 523, respectively. However, the present invention is not limited thereto.

Also, when the channel indicator 620 continues to move up or down and is located at the end of the second area 610b, when an input is received that continuously depresses the channel-up key or the channel-down key , The image display apparatus 100 can move the channel indicator to the start point of the first area 610a adjacent to the second area 610b. In addition, the video display device 100 can move the channel indicator 620 continuously on the first area 610b. At this time, as shown in FIG. 7C, the image display apparatus 100 may display the channel indicator 620 corresponding to the point where the channel indicator 620 is located among the channels belonging to the sports channel group (the channel group corresponding to the first area 610b) The channel number of the channel (e.g., channel number '36').

On the other hand, while the input to hold the channel-up key or the channel-down key is held (for example, while the channel indicator is moving on the channel scroll bar), the video display device 100 displays the channel screen May not change.

FIGS. 8A and 8B are views referenced to illustrate the rate at which a channel indicator according to one embodiment moves on a channel scroll bar. FIG.

8A, when the image display apparatus 100 according to the embodiment receives an input signal for depressing a channel-up key or a channel-down key from the controller 300 for a long time, as shown in FIG. 8A, A channel scroll bar 710, and a channel indicator 720. At this time, the channel scroll bar 710 may display a point corresponding to the preferred channel. The preferred channel may include a channel that the user frequently watches or a channel that the user has registered as a favorite. However, the present invention is not limited thereto.

For example, the first channel, the second channel, and the third channel among the entire channels stored in the image display apparatus 100 may be stored as preferred channels. At this time, specific objects (711, 712, 713) are displayed on the channel scroll bar 710 at a position corresponding to the first channel, a position corresponding to the second channel, and a position corresponding to the third channel, ) May be displayed.

8A and 8B, the image display apparatus 100 according to the embodiment can move the channel indicator at the first speed in the first area 710a of the channel scroll bar 710, And the channel indicator can be moved to the second speed in step 710b. At this time, the first speed may be larger than the second speed.

For example, as shown in FIG. 8A, the first area 710a may be an area not including the specific objects 711, 712, and 713, and the image display device 100 may include a point It is possible to move the channel indicator 720 at the first speed in the first area 710a which does not include the channel indicator 720. [

8B, the second region 710b may be an area including the specific objects 711 and 712, and the image display apparatus 100 may include a second region 710b including a point corresponding to the preferred channel, In region 710b, the channel indicator 720 may be moved to a second rate that is slower than the first rate.

The size of the first area 710a and the second area 710b can be variously set and the moving speed of the channel indicator 720 in the first area 710a and the moving speed of the channel indicator 720 in the second area 710b The moving speed of the channel indicator 720 may be set based on the sizes of the first area 710a and the second area 710b. In addition, the time taken for the channel indicator 720 to move through the entire channel scroll bar 710 may be constant irrespective of the number of the preferred channels, the first area 710a, and the second area 710b.

Alternatively, the image display apparatus 100 may display the moving speed of the channel indicator in the first time interval and the moving speed of the channel indicator in the second time interval while receiving the input signal that presses the channel- The moving speeds of the first, second, For example, the video display device 100 can quickly move the channel indicator at the beginning of the input, and then slowly move the channel indicator. However, the present invention is not limited thereto.

9 is a flowchart illustrating an operation method of an image display apparatus according to an exemplary embodiment.

Referring to FIG. 9, the image display apparatus 100 according to an exemplary embodiment may display a channel scroll bar and a channel indicator (S910).

The image display apparatus 100 may compare the number of channels stored in the memory with a predetermined number to determine whether to display the channel scroll bar and the channel indicator.

The channel scroll bar may include a plurality of points corresponding to each of the channels stored in the image display device 100, the channel indicator may move to a plurality of points, and the distance between adjacent points of the plurality of points may be Can be the same. The time at which the channel indicator moves from the start point to the end point of the plurality of points may be the same regardless of the number of channels stored in the memory.

The image display apparatus 100 may display channel information for a channel corresponding to a point where the channel indicator is located on the channel scroll bar.

The image display apparatus 100 may receive a first input that depresses the channel-up key or the channel-down key (S920).

At this time, long press input means input which keeps depressing the key longer than the critical time after pressing the key. For example, the time difference between the time when the key is pressed and the time when the key is released is equal to or longer than the threshold time.

Further, when the channel-up key or the channel-down key is constituted by a scroll wheel, a scroll-up input for continuously moving the scroll wheel upward, or a scroll-down input for moving the scroll wheel continuously in succession, Up key or a channel-down key according to the input signal.

Also, the input that is dragged through the touchpad may correspond to an input that depresses the channel-up key or the channel-down key according to one embodiment.

In response to the first input, the image display apparatus 100 moves the channel indicator in the first direction or the second direction on the channel scroll bar and displays the channel information for the channel corresponding to the position where the channel indicator is located (S930).

The image display apparatus 100 controls the channel indicator to move from the first point on the channel scroll bar to the second point adjacent to the first point in the first direction and the channel information of the first channel corresponding to the first point To the channel information of the second channel which is the next channel of the first channel. Alternatively, the image display apparatus 100 may move the channel indicator to a first point at a first point on the channel scroll bar and to a third point adjacent to the first point in a second direction, and to transmit channel information of the first channel to a previous channel The channel information of the third channel can be displayed and changed.

In addition, the time the channel indicator moves from the first point to the second point or from the first point to the third point may be inversely proportional to the number of channels stored in the memory.

The image display apparatus 100 may receive a second input for releasing the channel-up key or the channel-down key (S940).

In addition, the image display apparatus 100 can detect the second input when there is no scroll input for a predetermined time after the continuous scroll-up input or the continuous scroll-down input. In addition, the image display apparatus 100 may detect an input for releasing a touch tool or the like from the touch pad as a second input after dragging through the touch pad.

In response to the second input, the image display apparatus 100 may switch the current channel to a channel corresponding to a point at which the channel indicator is located, and display the image corresponding to the switched channel (S950).

For example, the image display apparatus 100 can determine a channel corresponding to a point at which the channel indicator is located based on the relative position of the channel indicator on the channel scroll bar. Also, the video display device 100 can receive the broadcast signal corresponding to the switched channel, and display the generated video on the display unit 130 based on the received broadcast signal.

The method of operating the image display device according to one embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions recorded on the medium may be those specially designed and configured for the present invention or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, .

Claims (22)

A video display device comprising:
A first input for depressing a channel up key or a channel down key and a second input for releasing the channel up key or channel down key, Sensing unit;
A display unit for displaying a channel scroll bar and a channel indicator;
A processor;
A memory for storing channel information corresponding to at least one channel; And
And one or more programs stored in the memory and executed by the processor,
The one or more programs,
In response to the first input, moving the channel indicator in a first direction or a second direction on the channel scroll bar, and displaying channel information on a channel corresponding to a point where the channel indicator is located on the display unit Control,
And in response to the second input, instructions for switching the current channel to a channel corresponding to a point at which the channel indicator is located, and displaying an image corresponding to the switched channel. The method according to claim 1,
Wherein the channel scroll bar includes a plurality of points at which the channel indicator can move, and the plurality of points correspond to each of a plurality of channels stored in the memory. 3. The method of claim 2,
Wherein the time at which the channel indicator moves from the start point to the end point of the plurality of points is the same regardless of the number of channels stored in the memory. 3. The method of claim 2,
Wherein a time at which the channel indicator moves from a first one of the plurality of points to a second point adjacent to the first point is inversely proportional to the number of channels stored in the memory. 3. The method of claim 2,
Wherein the first direction is a direction from a start point to an end point of the plurality of points and the second direction is a direction from the end point to the start point. 3. The method of claim 2,
The one or more programs,
When the channel indicator moves from the first point on the channel scroll bar to the second point adjacent to the first point in the first direction, the channel information of the first channel corresponding to the first point, And changing and displaying the channel information of the second channel which is the next channel of the first channel. 3. The method of claim 2,
When the channel indicator moves from the third point on the channel scroll bar to the fourth point adjacent to the third point in the second direction, the channel information of the third channel corresponding to the third point, And changing and displaying channel information of a fourth channel which is a previous channel of the three channels. The method according to claim 1,
The one or more programs,
The channel name, the channel name, the type of the content corresponding to the channel, and the content name of the content corresponding to the channel corresponding to the location where the channel indicator is located, For displaying the video signal. The method according to claim 1,
The one or more programs,
And comparing the number of channels stored in the memory with a predetermined number to determine whether to display the channel scroll bar and the channel indicator. The method according to claim 1,
The one or more programs,
And determines a channel corresponding to a point where the channel indicator is located, based on a relative position of the channel indicator on the channel scroll bar. The method according to claim 1,
The one or more programs,
Grouping the channels stored in the memory into a plurality of channel groups according to a predetermined criterion,
A first channel group of the plurality of channel groups corresponds to a first area of the channel scroll bar, a second channel group corresponds to a second area of the channel scroll bar,
Wherein the channel indicator indicates channel information of channels included in the first channel group when the channel indicator moves on the first area, and when the channel indicator moves on the second area, And instructions for displaying channel information of the channels. The method according to claim 1,
One or more programs,
And instructions for controlling the rate of moving the channel indicator in the region corresponding to the predetermined channel and the speed of moving the channel indicator in the remaining region differently. The method according to claim 1,
The one or more programs,
And an instruction for receiving the broadcast signal corresponding to the switched channel and displaying the image. A method of operating a video display device,
Displaying a channel scroll bar and a channel indicator;
Sensing a first input that is held down by a channel up key or a channel down key;
Moving the channel indicator in a first direction or a second direction on the channel scroll bar in response to the first input and displaying channel information for the channel corresponding to the location of the channel indicator;
Sensing a second input releasing the channel-up key or the channel-down key; And
Converting the current channel to a channel corresponding to a point where the channel indicator is located in response to the second input, and displaying an image corresponding to the switched channel. 15. The method of claim 14,
Wherein the channel scroll bar comprises a plurality of points through which the channel indicator can move and wherein the plurality of points correspond to each of a plurality of channels stored in the memory. 16. The method of claim 15,
Wherein the time at which the channel indicator moves from the start point to the end point of the plurality of points is the same regardless of the number of channels stored in the memory. 16. The method of claim 15,
Wherein the step of displaying the channel information comprises:
Moving the channel indicator from the first point on the channel scroll bar to a second point adjacent to the first point on the channel scroll bar, and moving the channel information of the first channel corresponding to the first point, And changing and displaying the channel information of the second channel which is the next channel of the channel. 16. The method of claim 15,
Wherein the step of displaying the channel information comprises:
Moves the channel indicator to a third point adjacent to the third point on the channel scroll bar and to a fourth point adjacent to the third point on the channel scroll bar, And changing the channel information of the fourth channel, which is a previous channel of the channel, to the channel information of the fourth channel. 15. The method of claim 14,
The operating method comprises:
Further comprising determining a channel corresponding to a point at which the channel indicator is located based on a relative position of the channel indicator on the channel scroll bar. 15. The method of claim 14,
The operating method comprises:
Further comprising grouping the channels stored in the memory into a plurality of channel groups according to a predetermined criterion,
A first channel group of the plurality of channel groups corresponds to a first area of the channel scroll bar, a second channel group corresponds to a second area of the channel scroll bar,
Wherein the step of displaying the channel information comprises:
Moving the channel indicator on the first area and displaying channel information of channels included in the first channel group; And
Moving the channel indicator on the second area, and displaying channel information of channels included in the second channel group. 15. The method of claim 14,
Wherein the step of displaying an image corresponding to the switched channel comprises:
Receiving the broadcast signal corresponding to the switched channel, and displaying the image. 15. A computer-readable recording medium on which a program for causing a computer to execute the method of claim 14 is recorded.

Images