KR20130003840A - Image display apparatus and method for operating the same - Google Patents

Abstract

PURPOSE: An image display device and an operation method thereof are provided to easily recognize input from multiple remote control devices by setting a part of multiple subfields as a first scan subfield and setting the other part of the multiple subfields as a second scan subfield. CONSTITUTION: A paring signal is received from a first remote control device(S1310). A paring response signal is transmitted to a first paring device(S1315). At least one subfield is set as a first scan subfield and the other subfield is set as a first display subfield(S1320). A first image is displayed according to the first display subfield(S1325). The first subfield within a unit frame is reset(S1330). An image is displayed based on the movement of the first remote control device(S1335). [Reference numerals] (AA) Start; (BB,DD) No; (CC,EE) Yes; (FF) End; (S1310) Receiving a paring signal from a first remote control device?; (S1315) Transmitting a paring response signal to a first paring device; (S1320) Setting at least one subfield as a first scan subfield among a plurality of subfields comprising a single frame, and setting the other subfield as a first display subfield; (S1325) Displaying a first image according to the first display subfield; (S1330) Resetting the first subfield within a unit frame based on discharge cell coordinate information sensed in the first remote control device; (S1335) Displaying an image based on the movement of the first remote control device according to the reset first display subfield; (S1340) Receiving a paring signal from a second remote control device?; (S1345) Transmitting a paring response signal to a second paring device; (S1350) Setting one subfield as the first scan subfield among a plurality of subfields comprising a single frame, setting another subfield as a second scan subfield, and setting the other subfield as a second display subfield; (S1355) Displaying a second image according to the second display subfield; (S1360) Resetting the second subfield within a unit frame based on discharge cell coordinate information sensed in the first and second remote control devices; (S1365) Displaying an image based on the movement of the first and second remote control devices according to the reset second display subfield

Description

Image display apparatus and method for operating the same

The present invention relates to an image display apparatus and an operation method thereof, and more particularly, to easily input from a plurality of touch pen-type remote control apparatuses for sensing light emitted from a discharge cell of a plasma display panel. The present invention relates to a recognizable image display device and a method of operating the same.

The image display device is a device having a function of displaying an image that a user can watch. The user can watch the broadcast through the image display device. A video display device displays a broadcast selected by a user among broadcast signals transmitted from a broadcast station on a display. Currently, broadcasting is shifting from analog broadcasting to digital broadcasting worldwide.

Digital broadcasting refers to broadcasting for transmitting digital video and audio signals. Digital broadcasting is more resistant to external noise than analog broadcasting, so it has less data loss, is advantageous for error correction, has a higher resolution, and provides a clearer picture. In addition, unlike analog broadcasting, digital broadcasting is capable of bidirectional services.

On the other hand, the research on the remote control device for controlling the image display device remotely.

SUMMARY OF THE INVENTION An object of the present invention is to provide an image display apparatus and a method of operating the same, which can easily recognize input from a plurality of touch pen-type remote controllers that sense light emitted from discharge cells of a plasma display panel. In providing.

Operation method of an image display device according to an embodiment of the present invention for achieving the above object, Method of operating an image display device for displaying an image using a remote control device for sensing the light emitted from the discharge cells of the plasma display panel For example, when the first pairing signal is received from the first remote control device, at least one subfield among a plurality of subfields forming a frame is configured to detect coordinates of a discharge cell in the first remote control device. Setting as a scan subfield, setting another subfield as a first display subfield for the first image display, displaying a first image according to the first display subfield, and from the second remote control apparatus. When the second pairing signal is received, a part of the plurality of subfields forming the frame is transferred to the first scan subfield for detecting the coordinates of the discharge cell in the first remote control apparatus. Setting a second part as a second scan subfield for detecting a coordinate of a discharge cell in the second remote control device, and setting the remaining subfield as a second display subfield for displaying a second image; And displaying a second image according to the second display subfield.

In addition, the operation method of the image display device according to an embodiment of the present invention for achieving the above object, of the image display device for displaying an image using a remote control device for sensing the light emitted from the discharge cells of the plasma display panel As an operation method, when pairing is performed with a plurality of remote control apparatuses, a part of a plurality of subfields forming a frame is set as a first scan subfield for detecting coordinates of a discharge cell in the first remote control apparatus. Setting another part as a second scan subfield for detecting coordinates of a discharge cell in the second remote control device and setting the remaining subfields as a display subfield for displaying a second image; And displaying a predetermined image according to the subfield, wherein at least one position of the first scan subfield or the second scan subfield is variable for each frame.

In addition, the image display device according to an embodiment of the present invention for achieving the above object, a plurality of discharge cells, when the first pairing signal is received from the first remote control device, a plurality of sub-fields forming a frame Set at least one of the subfields as the first scan subfield for the coordinate detection of the discharge cells in the first remote control device, and emits vertical address light and horizontal address light sequentially during the first subfield period And a control unit for controlling to display a predetermined image corresponding to the position of the first remote controller, wherein the plasma display panel includes a frame when the second pairing signal is received from the second remote controller. Part of the plurality of subfields to be configured as the first scan subfield for detecting the coordinates of the discharge cells in the first remote control device. And set another part as the second scan subfield for detecting the coordinates of the discharge cells in the second remote control device, so that the vertical address light and the horizontal address light are sequentially sequentially during the first and second subfield periods. Release.

According to an embodiment of the present invention, when paired with a plurality of remote control apparatuses, a part of a plurality of subfields forming a frame is converted into a first scan subfield for detecting coordinates of a discharge cell in the first remote control apparatus. And a touch pen for sensing light emitted from the discharge cells of the plasma display panel by setting a second part as a second scan subfield for detecting the coordinates of the discharge cells in the second remote controller. It is possible to easily recognize the input from the plurality of remote control apparatus using the scheme.

In particular, by configuring the first and second scan subfields in consideration of the gray level of the frame or the gray level of the display subfield, it is possible to implement the present invention without degrading the gray level expression power of the displayed image.

In addition, the image display is performed based on the respective position information from the plurality of remote control apparatuses, so that the user can easily perform the touch pen mode using the remote control apparatus. Accordingly, the user's convenience is improved.

In addition, various user interfaces are possible in the touch pen mode, thereby improving user convenience.

1 is a block diagram of an image display apparatus according to an embodiment of the present invention.
2 to 3 illustrate various examples of an internal block diagram of the image display apparatus of FIG. 1.
4 is a diagram illustrating an example of an interior of the display of FIG. 2.
5 is an internal block diagram of the controller of FIG. 2.
6 is a view for explaining an example of the operation of the remote control device for controlling the image display device of FIG.
7 is an internal convex view of the remote control device of FIG.
8 shows an example of an internal block diagram of the remote control device of FIG. 2 and a simplified internal block diagram of a pointing signal receiver.
9 is a view referred to for explaining the light sensing in the remote control device.
10 to 12 illustrate an operation of the plasma display panel in the touch pen mode according to an embodiment of the present invention.
13 is a flowchart illustrating a method of operating an image display apparatus according to an exemplary embodiment of the present invention.
14 to 20D are diagrams for describing an operating method of the image display apparatus of FIG. 13.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

1 is a block diagram of an image display apparatus according to an embodiment of the present invention.

Referring to FIG. 1, an image display apparatus 100 according to an exemplary embodiment of the present invention may be provided with a touch pen-based remote control apparatus 200, a pointing signal receiving apparatus 300, and a pointing signal processing apparatus 400. The video display system can be configured.

The image display apparatus 100 may include a plasma display panel to enable a touch pen method. The plasma display panel includes a phosphor layer formed in a discharge cell divided by a partition wall, and includes a plurality of electrodes.

When the plasma display panel supplies a drive signal to each electrode, the discharge is generated by the drive signal supplied in the discharge cell. Here, when discharged by a drive signal in the discharge cell, the discharge gas filled in the discharge cell generates vacuum ultraviolet rays, and the vacuum ultraviolet light emits the phosphor formed in the discharge cell to emit visible light. Generate. The visible light displays an image on the screen of the plasma display panel.

Meanwhile, an inert mixed gas such as He + Xe, Ne + Xe, He + Ne + Xe, or the like may be injected into the discharge space in the discharge cell of the plasma display panel.

In the gas discharge described above, in addition to emitting visible light, the plasma display panel also emits infrared rays by xenon (Xe).

According to an embodiment of the present invention, the touch pen type remote controller 200 senses light emitted from a discharge cell of a plasma display panel. Specifically, infrared (IR) is detected. For example, when the remote controller 200 approaches or contacts a specific discharge cell of the plasma display panel, the remote controller 200 outputs a timing signal based on the detected light, and based on the timing signal. Thus, the x, y coordinate signal of the corresponding discharge cell can be calculated. The calculated x, y coordinate signals of the discharge cells are converted into RF signals and transmitted to the pointing signal receiver 300.

The pointing signal receiving apparatus 300 receives an x, y coordinate signal of an RF method, and transmits the x, y coordinate signal to the pointing signal processing apparatus 400. To this end, the pointing signal receiving apparatus 300 may include an antenna for receiving an RF signal and an RF module for processing the same. The x, y coordinate signal of the received RF method may be transmitted to the pointing signal processing apparatus 400 by wire or wirelessly. For example, the pointing signal receiver 300 may be a USB or a Bluetooth dongle.

The pointing signal processing apparatus 400 receives the received x, y coordinate signal, processes the signal, and transmits a predetermined image signal to the image display apparatus 100. As a result, the image display apparatus 100, specifically, the plasma display panel, displays a predetermined image (a pointing image, etc.) in a specific discharge cell, that is, in a discharge cell corresponding to the corresponding coordinate (x, y coordinate).

Meanwhile, the pointing signal processing apparatus 400 may include a program for executing the touch pen mode, and execute the pointing signal processing apparatus to perform signal processing and transmission on the received x and y coordinates. For example, the pointing signal processing apparatus 400 may be a computer or the like.

In this manner, by using the pen-shaped remote control apparatus 200, it is possible to display a predetermined image (pointing image, etc.) at specific coordinates in the display panel in a contact or non-contact manner. That is, as the handwriting moves on the plasma display panel of the image display apparatus 100 using the touch pen, when the remote control apparatus 200 is moved, the writing may be performed according to the movement path.

In an embodiment of the present invention, such a remote control device is referred to as a touch pen remote control device, and the touch fan mode according to the embodiment of the present invention is a touch mode or a capacitive touch mode. It is distinguished from the touch mode by the contact mode.

Meanwhile, in the drawing, the touch pen type image display apparatus 100, the pointing signal receiving apparatus 300, and the pointing signal processing apparatus 400 are separately illustrated, but the pointing signal receiving apparatus 300 and the pointing signal are illustrated. At least a pointing signal processing apparatus 400 of the processing apparatus 400 may be provided in the image display apparatus 100. As a result, in one image display apparatus, the touch pen mode can be easily performed.

2 to 3 illustrate various examples of an internal block diagram of the image display apparatus of FIG. 1.

First, referring to FIG. 2, the video display device 100 according to an embodiment of the present invention may include a broadcast receiving unit 105, an external device interface unit 130, a network interface unit 135, and a storage unit 140. , A user input interface unit 150, a controller 170, a display 180, an audio output unit 185, and a power supply unit 190.

The broadcast receiver 105 may include a tuner 110, a demodulator 120, and a network interface unit 130. Of course, if necessary, the tuner 110 and the demodulator 120 may be provided so as not to include the network interface unit 130. On the contrary, the tuner 110 and the network interface unit 130 may be provided. The demodulator 120 may be designed so as not to be included.

The tuner 110 selects an RF broadcast signal corresponding to a channel selected by a user or all pre-stored channels among RF (Radio Frequency) broadcast signals received through an antenna. Also, the selected RF broadcast signal is converted into an intermediate frequency signal, a baseband image, or a voice signal.

The demodulator 120 receives the digital IF signal DIF converted by the tuner 110 and performs a demodulation operation.

The demodulation unit 120 may perform demodulation and channel decoding, and then output a stream signal TS. In this case, the stream signal may be a signal multiplexed with a video signal, an audio signal, or a data signal.

The stream signal output from the demodulator 120 may be input to the controller 170. After performing demultiplexing, image / audio signal processing, and the like, the controller 170 outputs an image to the display 180 and outputs audio to the audio output unit 185.

The external device interface unit 130 may connect the external device to the image display device 100. To this end, the external device interface unit 130 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The external device interface unit 130 may be connected to an external device such as a digital versatile disk (DVD), a Blu-ray, a game device, a camera, a camcorder, a computer (laptop), or the like by wire / wireless.

The A / V input / output unit may receive a video and audio signal of an external device. The wireless communication unit may perform short range wireless communication with another electronic device.

In addition, the external device interface unit 130 may be connected through at least one of the various set top boxes and the various terminals described above to perform input / output operations with the set top box.

The external device interface unit 130 may transmit / receive data with the pointing signal processing apparatus 400.

The network interface unit 135 provides an interface for connecting the image display apparatus 100 to a wired / wireless network including an internet network. For example, the network interface unit 135 may receive content or data provided by the Internet or a content provider or a network operator through a network.

The storage 140 may store a program for processing and controlling each signal in the controller 170, or may store a signal-processed video, audio, or data signal.

In addition, the storage unit 140 may perform a function for temporarily storing an image, audio, or data signal input to the external device interface unit 130. In addition, the storage 140 may store information on a predetermined broadcast channel through a channel storage function such as a channel map.

Although the storage unit 140 of FIG. 2 is provided separately from the control unit 170, the scope of the present invention is not limited thereto. The storage 140 may be included in the controller 170.

The user input interface unit 150 transmits a signal input by the user to the control unit 170 or a signal from the control unit 170 to the user.

For example, the remote controller 200 transmits / receives a user input signal such as power on / off, channel selection, screen setting, or a local key (not shown) such as a power key, a channel key, a volume key, or a set value. Transmits a user input signal input from the control unit 170, a user input signal input from a sensing unit (not shown) for sensing a user's gesture to the control unit 170, or a signal from the control unit 170 The transmission may be transmitted to a sensing unit (not shown).

The controller 170 demultiplexes the input stream or processes the demultiplexed signals through the tuner 110, the demodulator 120, or the external device interface unit 130, and outputs a video or audio signal. You can create and output.

The image signal processed by the controller 170 may be input to the display 180 and displayed as an image corresponding to the image signal. In addition, the image signal processed by the controller 170 may be input to the external output device through the external device interface unit 130.

The voice signal processed by the controller 170 may be sound output to the audio output unit 185. In addition, the voice signal processed by the controller 170 may be input to the external output device through the external device interface unit 130.

Although not shown in FIG. 2, the controller 170 may include a demultiplexer, an image processor, and the like. This will be described later with reference to FIG.

In addition, the controller 170 may control overall operations of the image display apparatus 100. For example, the controller 170 may control the tuner 110 to control the tuner 110 to select an RF broadcast corresponding to a channel selected by a user or a pre-stored channel.

In addition, the controller 170 may control the image display apparatus 100 by a user command or an internal program input through the user input interface unit 150.

The controller 170 may control the display 180 to display an image. In this case, the image displayed on the display 180 may be a still image or a video, and may be a 2D image or a 3D image.

The display 180 converts an image signal, a data signal, an OSD signal, a control signal, or an image signal, a data signal, a control signal received from the external device interface unit 130 processed by the controller 170, and generates a driving signal. Create

The display 180 is described below on the assumption that the display 180 is a plasma display panel capable of a touch pen method according to an embodiment of the present invention.

The audio output unit 185 receives a signal processed by the controller 170 and outputs the audio signal.

Meanwhile, in order to detect a gesture of a user, as described above, a sensing unit (not shown) including at least one of a touch sensor, a voice sensor, a position sensor, and a motion sensor may be further provided in the image display apparatus 100. have. The signal detected by the sensing unit (not shown) is transmitted to the controller 170 through the user input interface unit 150.

The controller 170 may detect a gesture of the user by combining or combining the image photographed by the photographing unit (not shown) or the detected signal from the sensing unit (not shown).

The power supply unit 190 supplies power to the entire image display apparatus 100. In particular, power may be supplied to the controller 170, which may be implemented in the form of a System On Chip (SOC), a display 180 for displaying an image, and an audio output unit 185 for audio output. have.

To this end, the power supply unit 190 may include a converter (not shown) for converting the AC power into DC power. The apparatus may further include a dc / dc converter for level converting the DC power and outputting the level converted DC power.

The remote control apparatus 200 is used to input a user input through the user input interface unit 150. In particular, according to an embodiment of the present invention, by detecting the light emitted from a specific discharge cell of the plasma display panel, and the corresponding coordinate information through the pointing signal receiving device 300 and the pointing signal processing device 400, Is used to cause an image signal to be input to the image display apparatus 100.

Next, the image display apparatus 100 of FIG. 3 is similar to FIG. 2, except that the pointing signal receiving apparatus 300 and the pointing signal processing apparatus 400 of FIG. 2 are provided in the image display apparatus 100, respectively. There is a difference.

Accordingly, coordinate information based on the optical signal sensed by the remote control apparatus 200 may be input to the pointing signal receiver 300 and the pointing signal processor 400 in the image display apparatus 100. The pointing signal processor 400 may generate an image signal based on the coordinate information, and transmit the image signal to the controller 170. The controller 170 may control to display a predetermined image corresponding to the image signal on the plasma display panel. Meanwhile, the predetermined program described in FIG. 1 may be mounted in the pointing signal processor 400. Meanwhile, unlike FIG. 3, the pointing signal receiving unit 300 and the pointing signal processing unit 400 may be provided in the user input interface unit 150.

Meanwhile, the above-described image display apparatus 100 may be a digital broadcast receiver capable of receiving fixed or mobile digital broadcasting.

On the other hand, the video display device described in the present specification is a TV receiver, a mobile phone, a smart phone (notebook computer), a digital broadcasting terminal, PDA (Personal Digital Assistants), PMP (Portable Multimedia Player), etc. May be included.

Meanwhile, a block diagram of the image display apparatus 100 shown in FIGS. 2 to 3 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specifications of the image display apparatus 100 that is 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 the embodiments of the present invention, and the specific operations and apparatuses do not limit the scope of the present invention.

4 is a diagram illustrating an example of an interior of the display of FIG. 2.

Referring to the drawing, the plasma display panel based display 180 includes a plasma display panel 210 and a driving circuit unit 230.

The plasma display panel 210 is formed on the first substrate and is formed parallel to each other, and the scan electrode Y and the sustain electrode Z are formed on the second substrate, and the scan electrode Y and the sustain electrode ( And an address electrode X intersecting with Z).

In order to display an image, a plurality of scan electrode lines Y, a sustain electrode line Z, and an address electrode line X are arranged to cross each other in a matrix form, and discharge cells are formed in the crossing regions. Meanwhile, the discharge cells may be generated for each of R, G, and B.

The driving circuit unit 230 drives the plasma display panel 210 through a control signal and a data signal supplied from the controller 170 of FIG. 1. To this end, the driving circuit unit 230 includes a timing controller 232, a scan driver 234, a sustain driver 238, and an address driver 236. The operation of the scan driver 234, the sustain driver 238, and the address driver 236 will be described later with reference to FIG. 9 or below.

The timing controller 232 receives a control signal from the control unit 170, an R, G, B data signal, a vertical synchronization signal Vsync, and the like, and responds to the control signal to the scan driver 234 and the sustain driver ( 238 is controlled, and the R, G, and B data signals are rearranged and provided to the address driver 236.

The power supply unit 190 may supply a plurality of levels of DC power required for the plasma display panel 210 to the scan driver 234, the sustain driver 238, and the address driver 236, respectively.

5 is an internal block diagram of the controller of FIG. 2.

Referring to the drawings, the control unit 170 according to an embodiment of the present invention, the demultiplexer 410, the image processor 420, the OSD generator 440, the mixer 445, the frame rate converter 450, and formatter 460. In addition, the apparatus may further include a voice processor (not shown) and a data processor (not shown).

The demultiplexer 410 demultiplexes the input stream. For example, when an MPEG-2 TS is input, it may be demultiplexed and separated into video, audio, and data signals, respectively. Here, the stream signal input to the demultiplexer 410 may be a stream signal output from the tuner 110, the demodulator 120, or the external device interface unit 130.

The image processor 420 may perform image processing of the demultiplexed image signal. To this end, the image processor 420 may include an image decoder 425 and a scaler 435.

The image decoder 425 decodes the demultiplexed image signal, and the scaler 435 performs scaling to output the resolution of the decoded image signal on the display 180.

The video decoder 425 may include decoders of various standards.

The OSD generator 440 generates an OSD signal according to a user input or itself. For example, a signal for displaying various types of information on a screen of the display 180 as a graphic or text may be generated based on a user input signal. The generated OSD signal may include various data such as a user interface screen, various menu screens, widgets, and icons of the image display apparatus 100. In addition, the generated OSD signal may include a 2D object or a 3D object.

The mixer 445 may mix the OSD signal generated by the OSD generator 440 and the decoded image signal processed by the image processor 420. In this case, the OSD signal and the decoded video signal may each include at least one of a 2D signal and a 3D signal. The mixed video signal is provided to the frame rate converter 450.

The frame rate converter 450 converts the frame rate of the input video. On the other hand, the frame rate converter 450 may output the data as it is without additional frame rate conversion.

The formatter 460 receives a mixed signal from the mixer 445, that is, an OSD signal and a decoded video signal, and changes the format of the signal to be suitable for the display 180. For example, the R, G, B data signals may be output, and the R, G, B data signals may be output as low voltage differential signaling (LVDS) or mini-LVDS.

The formatter 460 may separate a 2D video signal and a 3D video signal for displaying a 3D video. In addition, the format of the 3D video signal may be changed or the 2D video signal may be converted into a 3D video signal.

The voice processing unit (not shown) in the controller 170 may perform voice processing of the demultiplexed voice signal. To this end, the voice processing unit (not shown) may include various decoders.

Also, the voice processing unit (not shown) in the controller 170 may process a base, a treble, a volume control, and the like.

The data processor (not shown) in the controller 170 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded. The encoded data signal may be EPG (Electronic Progtam Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted in each channel.

Meanwhile, a block diagram of the controller 170 shown in FIG. 5 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specification of the controller 170 that is actually implemented.

In particular, the frame rate converter 450 and the formatter 460 may not be provided in the controller 170, but may be provided separately.

6 is a view for explaining an example of the operation of the remote control device for controlling the image display device of FIG.

As shown in FIG. 6A, the display 180 moves the touch pen-based remote controller 200 from the first point to the second point on or near the plasma display panel 180. In this case, as shown in FIG. 6B, according to the movement, an image corresponding to the movement is displayed on the display 180. In the figure, it illustrates that the image of the '-' shape is displayed.

As described above, the touch pen type remote controller 200 detects infrared rays (IR) output from a specific discharge cell in the plasma display panel 180 in the touch pen mode, and based on the detected light. By calculating the coordinates of the discharge cell. As a result, the image is displayed on the plasma display panel 180 according to the calculated coordinates.

Next, as shown in FIG. 6 (c), the touch pen-based remote control device 200 on the display 180 is moved from the third point to the fourth point on or near the plasma display panel 180. In the case of moving, as shown in FIG. 6 (d), according to the movement, an image corresponding to the movement is displayed on the display 180. As a result, the figure illustrates that an image having a 'T' shape is displayed.

On the other hand, unlike the illustrated in the figure, when the touch pen-type remote control device 200 is still located in a specific discharge cell, the plasma display panel 180, '.' The image of the shape will be displayed.

By such a touch pen method, a user can easily display an image having a desired shape on the plasma display panel.

Hereinafter, the touch pen type remote controller 200 will be described in more detail.

FIG. 7 is an internal convex view of the remote control device of FIG. 2, FIG. 8 shows an example of an internal block diagram of the remote control device of FIG. 2 and a simplified internal block diagram of a pointing signal receiving device, and FIGS. 9A to 9B 8 is a view for explaining various examples of the ends of the remote control device of FIG. 8, and FIG. 9 is a view for explaining light sensing in the remote control device.

Referring to FIGS. 7 to 9, the touch pen type remote control apparatus 200 includes a wireless communication unit 225, a user input unit 235, an optical sensor unit 240, an output unit 250, and a power supply unit. 260, a storage 270, and a controller 280. In addition, the touch pen-type remote control device 200 may include a rotary ball 780.

The wireless communication unit 225 may include an RF module 221 or an IR module 223 for communication with the pointing signal receiving apparatus 300.

The IR module 223 or the RF module 221 transmits coordinate signals (x, y) corresponding to the calculated discharge cells based on the light detected by the optical sensor unit 240 according to the IR method or the RF method. The pointing signal may be transmitted to the apparatus 300. In addition, the IR module 223 or the RF module 221 may transmit a control signal such as a power on / off signal of the remote controller 200. In particular, in the embodiment of the present invention, to communicate with the pointing signal receiving apparatus 300 through the RF module 221, for stable communication through various channels.

The user input unit 235 may be configured as a keypad, a button, a touch pad, or a touch screen. The user may input a command related to the image display apparatus 100 to the remote control apparatus 200 by manipulating the user input unit 235. When the user input unit 235 includes a hard key button, the user may input a command related to the image display apparatus 100 to the remote control apparatus 200 through a push operation of the hard key button.

As illustrated in FIGS. 7 to 8, the user input unit 235 may include a power on / off key 775, a touch pen mode key 773, and the like.

For example, according to the operation of the power on / off key 775, the power of the remote controller 200 may be turned on or off, and according to the operation of the touch pen mode key 773, the remote controller 200 may be used. ) May wake up to enter touch pen mode.

Specifically, when the touch pen mode key 773 is pressed once, the remote control device 200 wakes up to enter the touch pen mode, and when pressed again, the touch pen mode ends. Can be.

As another example, when the touch pen mode key 773 is pressed, the remote controller 200 wakes up to enter the touch pen mode, and when the touch pen mode key 773 is not pressed again, the touch Pen mode may end.

In addition, the user input unit 235 may include various types of input means that can be operated by the user, and this embodiment does not limit the scope of the present invention.

The optical sensor unit 240 may detect light emitted from a specific discharge cell of the plasma display panel of the image display apparatus 100, for example, infrared rays. To this end, the optical sensor unit 240, as shown in FIG. 8, may include an optical sensor 710, an amplifier 715, and a comparator 720.

In the touch pen mode, the optical sensor 710 may detect light emitted from a corresponding discharge cell near or in contact with a specific discharge cell of the plasma display panel. In particular, infrared (IR) can be detected. The detected signal S _IR may be, for example, as shown in FIG. 9A.

The amplifier 715 amplifies the optical signal S _IR detected by the optical sensor 710. To this end, the amplifier 715 may include an OP AMP. The amplified signal Samp may be, for example, as shown in FIG. 9 (b).

Next, the comparison unit 720 compares the signal Samp amplified by the amplification unit 715 with the reference signal Sref, and the timing corresponding to a section that is equal to or greater than the reference signal Sref level among the amplified signals Samp. Output the signal Sf. In FIG. 9C, a section having a level higher than or equal to the reference signal Sref level among the amplified signals Samp has a low level.

The timing signal Sf corresponds to the position of a specific discharge cell, in particular, the x and y coordinates, and is input to the control unit 280 and used for the x and y coordinate calculation.

9, the low level section of the timing signal Sf corresponds to a section of a lower level, not a peak section of the detected optical signal S _IR . In order to detect the signal more accurately, there is a method of setting the reference signal (Sref) level higher, but according to the surrounding environment when detecting the infrared light, the optical signal (S _IR ) detected by the optical sensor 710 may include noise. The optical sensor unit 240 or the controller 280 may further perform signal processing on the timing signal Sf of FIG. 9C.

For example, a falling edge and a rising edge of the timing signal Sf of FIG. 9C may be calculated to set the average value to a low level. That is, it is possible to set the intermediate section between the falling edge and the rising edge to a low level. Thus, a digital signal almost similar to the actual waveform of the infrared signal can be calculated.

The output unit 250 may output a video or audio signal corresponding to an operation of the user input unit 235 or a signal transmitted from the image display apparatus 100. The user may recognize whether the user input unit 235 is manipulated or whether the image display apparatus 100 is controlled through the output unit 250.

For example, the output unit 250 may include a LED module 251 that is turned on when the user input unit 235 is operated or a signal is transmitted and received with the image display device 100 through the wireless communication unit 225, and a vibration module generating vibration. 253, a sound output module 255 for outputting sound, or a display module 257 for outputting an image.

The power supply unit 260 supplies power to the remote control apparatus 200. On the other hand, the power supply unit 260, when the remote control device 200 does not detect the light for more than the first predetermined time, enters the standby mode, it may limit the power of some modules. In addition, when the standby mode is not detected for more than a second predetermined time, the power supply may be stopped by stopping the power supply. The power supply unit 260 may resume power supply when a predetermined key included in the remote control apparatus 200 is operated or when light sensing is performed by the optical sensor unit 240 again.

The storage unit 270 may store various types of programs, application data, and the like necessary for controlling or operating the remote control apparatus 200. In particular, for a pairing operation with the pointing signal processing apparatus 400, information about a specific frequency band or a transmission data unit for a plurality of channels may be stored.

In the touch pen mode, the controller 280 receives a timing signal corresponding to a light detection signal that detects light emitted from a specific discharge cell of the plasma display panel from the light sensor unit 240. For example, a timing signal Sf as shown in FIG. 9C may be input.

The controller 280 performs signal processing on the received timing signal to calculate x, y coordinate signals in the plasma display panel.

In addition, the controller 280 may perform signal conversion to transmit the calculated x, y coordinate signal in an RF manner. In addition, the converted RF x, y coordinate signal may be output to the RF module 221.

On the other hand, the control unit 280, when the power on / off key 775 is operated, the power to the remote control device 200, via the pointing signal receiving device 300, the pointing signal processing device 400 Control to perform a pairing operation with the. The pairing operation may be performed before the touch pen mode key 235 enters the touch pen mode according to the operation.

As illustrated in FIG. 8, the remote controller 200 may further include an antenna 730, and may output data signals such as RF coordinate signals or other pairing signals output from the RF module. .

As illustrated in FIG. 8, the pointing signal receiver 300 may include an antenna 760 and an RF module 765. The antenna 760 receives an RF signal, and the received RF module 765 may process the received RF signal and output an x, y coordinate signal. The output coordinate signal is input to the pointing signal processing apparatus 400 connected in a wired or wireless manner.

The pointing signal processing apparatus 400 processes the signal based on the input coordinate signal, and transmits a predetermined image signal to the image display apparatus 100. Accordingly, the image display apparatus 100, specifically, the plasma display panel, can display a predetermined image (pointing image, etc.) in a specific discharge cell, that is, in a discharge cell corresponding to the corresponding coordinate (x, y coordinate). do.

The rotating ball 780 is disposed in front of the optical sensor 710 to rotate when in contact with the plasma display panel. As such, by implementing the part in contact with the plasma display panel with the rotating ball, wear of the contact part can be reduced, thereby improving the durability of the remote control device and the surface durability of the plasma display panel.

On the other hand, for smooth light sensing in the optical sensor 710, the rotating ball 780 is preferably made of a transparent material. That is, light emitted from the plasma display panel may pass through the transparent rotating ball 780 and may be detected by the optical sensor 710.

Although not shown in FIG. 8, the remote control apparatus 200 may further include a pressure detector (not shown) or a rotation detector (not shown).

For example, when the remote controller 200 is in contact with the plasma display panel, the rotary ball 780 of the remote controller 200 is directed toward the optical sensor 710 by the force of pressing the remote controller 200. You can retreat. According to the pressure, the pressure sensing unit may output signals of different levels. In addition, the detected pressure signal is transmitted to the controller 280. Accordingly, the image display apparatus 100 may display images having different sizes or thicknesses based on different pressure signals.

Meanwhile, a driving method for driving the plasma display panel provided in the display of the image display apparatus will be described below.

In the plasma display panel, the unit frame for implementing the gray level of the image may include a plurality of subfields.

In addition, the plurality of subfields may include a sustain period for implementing gradation according to an address period and a number of discharges for selecting discharge cells in which discharge cells will not occur or discharge cells in which discharge occurs. Period) may be included.

Alternatively, at least one subfield of the plurality of subfields of the frame may further include a reset period for initialization.

10 to 12 are diagrams illustrating an operation of the plasma display panel in the touch pen mode according to an embodiment of the present invention.

Referring to FIG. 10, in the touch pen mode, at least one of a plurality of subfields forming one frame may be set as a scan subfield.

For example, a first subfield and a second subfield among a plurality of subfields of a frame may be used as a scan subfield for detecting a touch position. In addition, the remaining subfields except the scan subfield among the plurality of subfields of the frame may be normal subfields (Normal SF). Here, the general subfield is a subfield for video display, that is, video gradation display, and is also referred to as a display subfield in comparison with the scan subfield.

In addition, in the normal mode other than the touch pen mode, the frame does not include the scan subfield, and all subfields included in the frame may be the general subfield.

In other words, in the touch pen mode, when the touch fan type remote control apparatus 200 operates, at least one subfield of the plurality of subfields of the frame may be set as a scan subfield.

Referring to FIG. 11, the scan subfield may include a vertical scan subfield VSSF for detecting the vertical position of the touch position and a horizontal scan subfield HSSF for detecting the horizontal position of the touch position.

For example, in the touch pen mode, the first subfield of the plurality of subfields of the frame may be a vertical scan subfield, and the second subfield may be a horizontal scan subfield. As such, the vertical scan subfield and the horizontal scan subfield may be continuously arranged in one frame.

In the vertical scan address period VSAP of the vertical scan subfield VSSF, the touch scan signal TSP descending from the scan reference voltage Vsc may be supplied to the scan electrode.

Preferably, the touch scan signal TSP may be sequentially supplied to the plurality of scan electrodes Y. Alternatively, the touch scan signal TSP may be supplied to at least two scan electrodes Y at substantially the same time.

As such, when the touch scan signal TSP is supplied to the scan electrode Y, the voltages of the address electrode X and the sustain electrode Z may be kept substantially constant.

When the touch scan signal TSP is supplied to the scan electrode Y in the vertical scan address period VSAP, when the voltage of the address electrode X is set higher than the voltage of the sustain electrode Z, the scan electrode Y ) And the address electrode X may generate a discharge. In the following description, discharges sequentially generated in the vertical scan address period VSAP are referred to as vertical address discharges as described above.

In the address period of the horizontal scan subfield HSSF (hereinafter referred to as the horizontal scan address period HSAP), the touch data signal TDP may be supplied to the address electrode X. FIG.

Preferably, the touch data signal TDP may be sequentially supplied to the plurality of address electrodes X. Alternatively, the touch data signal TDP may be supplied to at least two address electrodes X at substantially the same time point.

As such, when the touch data signal TDP is supplied to the address electrode X, the voltages of the scan electrode Y and the sustain electrode Z may be kept substantially constant.

When the touch data signal TDP is supplied to the address electrode X in the horizontal scan address period HSAP, when the voltages of the scan electrode Y and the sustain electrode Z are kept constant, the scan electrode Y And discharge may occur between the sustain electrode Z and the address electrode X. Hereinafter, the discharge generated in the horizontal scan address period HSAP as described above is referred to as horizontal address discharge.

On the other hand, the remote control device described above, for example, the remote control device 200, based on the vertical address discharge, that is, the vertical address light generated in the vertical scan address period (VSAP), to the vertical coordinate (y coordinate) of the touch position. The corresponding information may be obtained, and information corresponding to the horizontal coordinate (x coordinate) of the touch position may be obtained based on the horizontal address discharge generated in the horizontal scan address period HSAP, that is, the horizontal address light.

For example, in the touch pen mode, it is assumed that the position of the remote controller 200 is located in the third scan electrode line Y3 and the second address electrode line X2 as shown in FIG. 12. 22, the vertical address light generated in the third scan electrode line Y3 is detected during the vertical scan subfield VSSF of the scan subfield. The horizontal address light generated in the second address electrode line X2 is sensed during the horizontal scan subfield HSSF of the scan subfield.

In particular, it can be seen that the vertical coordinate of the touch position is Y3 based on the vertical address light sensing timing occurring in the third scan electrode line Y3, and the horizontal address light sensing timing occurring in the second address electrode line X2. Based on this, it can be seen that the horizontal coordinate of the touch position is X2.

The vertical light sensing timing and the horizontal light sensing timing may be calculated based on the scan sustain period SSP, respectively. Accordingly, the coordinate information of the touch position can be obtained simply.

Meanwhile, as in the case of FIG. 11, at least one of the scan electrode Y and the sustain electrode Z is touched in the scan sustain period SSP between the vertical scan address period VSAP and the horizontal scan address period HSAP. The sustain signal TSUS can be supplied.

On the other hand, unlike the drawing, it is also possible to alternately supply the touch sustain signal TSUS to the scan electrode Y and the sustain electrode Z in the scan sustain period SSP.

The scan sustain period SSP of FIG. 11 may include a synchronous sustain period and an identification sustain period. The scan sustain period may also be referred to as a reference sustain period in other terms.

In FIG. 11, two sync sustain pulses are applied to the scan electrode Y in the sync sustain period, but various examples are possible depending on the setting.

In FIG. 11, an identification sustain pulse is applied to the scan electrode Y after the synchronous sustain pulse, that is, after the second synchronous sustain pulse.

On the basis of such an identification sustain pulse, it is possible to perform vertical coordinate and horizontal coordinate calculation, exactly based on the identification sustain light. For example, as shown in FIG. 12, the vertical coordinate, that is, the Y3 coordinate may be calculated using the time difference between the identification sustain light and the vertical address light corresponding to the Y3 position. Then, the horizontal coordinate, that is, the X2 coordinate can be calculated using the time difference between the identification sustain light and the horizontal address light corresponding to the X2 position.

Of course, in addition to the identification sustain pulse, it is also possible to calculate the horizontal coordinate and the vertical coordinate by further utilizing the synchronous sustain pulse.

On the other hand, when a plurality of remote control devices are used, a method for easily recognizing an input from each remote control device will be discussed below.

FIG. 13 is a flowchart illustrating a method of operating an image display apparatus according to an exemplary embodiment of the present invention, and FIGS. 14 to 20D are views for explaining an operation method of the image display apparatus of FIG. 13.

Referring to the drawings, first, the image display apparatus 100 determines whether to receive a pairing signal from the first remote control apparatus 200a (S1310).

For example, when the power button of the first remote control apparatus 200a is pressed or the first remote control apparatus 200a approaches within a predetermined distance of the image display apparatus 100, the first remote control apparatus 200a Can transmit the pairing signal to the video display device 100 (S1410 in FIG. 14).

Meanwhile, unlike the FIG. 14, the pairing signal may be transmitted to the image display apparatus 100 through the pointing signal receiving apparatus 300 and the pointing signal processing apparatus 400.

Meanwhile, before the operation 1310, the image display device 100 may operate as a normal mode, as described with reference to FIG. 10. That is, in order to display a predetermined image, a plurality of subfields forming a frame are all set as display subfields for displaying an image, and accordingly, the predetermined image can be displayed.

Next, when determining that the pairing signal is received, the video display device 100 transmits the pairing response signal to the first remote control apparatus 200a (S1315).

The pairing response signal may include pairing completion information, ID (ID), position information of a scan subfield in a frame, and the like, for the first remote control apparatus 200a. For example, in the touch pen mode of FIG. 10, information indicating that the location of the scan subfield is the first and second subfields of the frame may be transmitted to the first remote controller 200a.

Meanwhile, in FIG. 14, the pairing response signal transmission S1415 is performed between the image display apparatus 100 and the first remote control apparatus 200a. Alternatively, the pointing signal receiving apparatus 300 may include It is also possible to be transmitted step by step via the pointing signal processing device 400.

After the pairing is completed, the video display device 100 switches from the normal mode to the touch pen mode. That is, in response to the reception of the first pairing signal, at least one subfield among the plurality of subfields forming the frame is set as the first scan subfield and the other subfield is set as the first display subfield (S1320). .

In detail, the controller 170 of the image display apparatus controls to switch from the normal mode to the touch pen mode in addition to the pairing response signal transmission control when receiving the pairing signal from the first remote controller 200a. Accordingly, the display 180, that is, the plasma display panel, converts a part of the subfields into a scan subfield for recognizing discharge cell coordinates in the touch pen mode.

Fig. 15A illustrates a subfield structure in a frame in the normal mode. For example, when 10 subfields are provided in a unit frame, in the normal mode, as shown in Fig. 15A, all the display subfields from the first subfield to the tenth subfield SF1 to SF10 are displayed. subfield).

Next, when receiving the pairing signal from the first remote control device 200a, as shown in Fig. 15 (b), a scan subfield is added in the unit frame (S1420). In FIG. 15B, the first subfield SF1 and the second subfield SF2 among the ten subfields are set as scan subfields, respectively. As described with reference to FIGS. 10 and 11, the scan subfields SF1 and SF2 may be configured of the vertical scan subfield VSSF and the horizontal scan subfield HSSF, respectively.

Meanwhile, the 1st scan subfield for the first remote control device may be set during a Ta period of a unit frame (for example, 1/60 second).

The subfield setting may be performed by the timing controller 232 in the display 180 of FIG. 4. In more detail, the operation may be performed by a subfield arrangement unit (not shown) in the timing controller 232.

Next, an image is displayed according to the set subfield (S1325). That is, according to the first scan subfields SF1 and SF2 and the first display subfields SF3 to SF10 set by the timing controller 232, the plasma display panel 210 may display the first image (S1425). ). In this case, the first image may be displayed based on the gray levels of the first display subfields SF3 to SF10, rather than the first scan subfields SF1 and SF2.

That is, as described above, the first scan subfields SF1 and SF2 are used only for light sensing in the first remote control apparatus 200a, and the gray level representation in the image display is performed in the display subfield. do.

Next, based on the discharge cell coordinate information detected by the first remote controller, the first display subfield in the unit frame is reset (S1330). In operation S1335, an image based on the movement of the first remote controller is displayed according to the reset first display subfield.

The first remote control apparatus 200a detects vertical light during the vertical scan subfield VSSF in the first scan subfield SF1 and SF2 and detects horizontal light during the horizontal scan subfield HSSF. .

In addition, the controller 280 of the first remote control apparatus 200a may transmit an x, y coordinate signal in the plasma display panel based on a light detection signal that detects light emitted from a specific discharge cell of the plasma display panel. Calculate

The calculated coordinate signal information is transmitted to the pointing signal receiving apparatus 300 and the pointing signal processing apparatus 400 (S1427), and the pointing signal processing apparatus 400 displays an image signal corresponding to the coordinate information. Transfer to device 100 (S1429). Specifically, such an image signal is input to the controller 170 of the video display device 100.

The image signal may be processed like the OSD signal to be overlaid and displayed on the first image that is already displayed. Alternatively, the display may be separately displayed in an area spaced apart from the first image that is already displayed.

The timing controller 232 in the display 180 resets the subfields, particularly the first display subfields SF3 to SF10, in response to the image signal (S1430). Accordingly, the plasma display panel 210 may further display an image corresponding to the movement of the user in addition to the first image (S1435). That is, as shown in FIG. 6, an image can be displayed.

Meanwhile, when the first image is not displayed, only the image signal may be displayed.

Next, the image display apparatus 100 determines whether to receive a pairing signal from the second remote control apparatus 200b (S1340).

For example, when the power button of the second remote control apparatus 200b is pressed or the second remote control apparatus 200b approaches within a predetermined distance of the image display apparatus 100, the second remote control apparatus 200b. Can transmit the pairing signal to the video display device 100 (S1440 in FIG. 14).

Meanwhile, unlike the FIG. 14, the pairing signal may be transmitted to the image display apparatus 100 through the pointing signal receiving apparatus 300 and the pointing signal processing apparatus 400.

Next, when determining that the video display device 100 receives the pairing signal, the video display device 100 transmits the pairing response signal to the second remote controller 200b (S1345).

The pairing response signal may include pairing completion information, ID (ID), or position information of the second scan subfield in the frame with respect to the second remote control apparatus 200b.

For example, information indicating that the positions of the second scan subfields are the 9th and 10th subfields of the frame may be transmitted to the second remote control apparatus 200b.

Meanwhile, in FIG. 14, the pairing response signal transmission S1445 is performed between the image display apparatus 100 and the second remote control apparatus 200b. In contrast, the pointing signal receiving apparatus 300 may include: It is also possible to be transmitted step by step via the pointing signal processing device 400.

Next, according to the reception of the second pairing signal, some of the plurality of subfields forming the frame are set to the first scan subfield, others are set to the second scan subfield, and the remaining subfields are set to the second display subfield. Set to a field (S1350).

Specifically, when the controller 170 of the image display device receives the pairing signal from the second remote controller 200b while operating in the touch pen mode through the first remote controller 200a, the pairing response signal. Control to transmit to the second remote control device 200b.

When receiving the pairing signal from the second remote control device 200b while the first remote control device 200a and the image display device 100 operate in the touch pen mode, as shown in FIG. The second scan subfield is added in operation S1450.

In FIG. 15 (c), the first subfield SF1 and the second subfield SF2 among the ten subfields are set as the first scan subfield, and the ninth subfield SF9 and the tenth subfield. (SF10) is set to the second scan subfield. The other subfields SF3 to SF8 are set to the second display subfield.

As described above, the first scan subfields SF1 and SF2 may be configured of the vertical scan subfield VSSF and the horizontal scan subfield HSSF, respectively, and the second scan subfields SF9 and SF10 may be formed. Each of the vertical scan subfield VSSF and the horizontal scan subfield HSSF may be configured.

Meanwhile, the first scan subfield for the first remote control apparatus 200a may be set during a Ta period of a unit frame (for example, 1/60 second), and the second remote control apparatus The second scan subfield for 200b may be set during a Tb period of a unit frame (for example, 1/60 second).

The subfield setting may be performed by the timing controller 232 in the display 180 of FIG. 4. In more detail, the operation may be performed by a subfield arrangement unit (not shown) in the timing controller 232.

Next, an image is displayed according to the set subfield (S1355). That is, according to the first and second scan subfields and the second display subfield set in the timing controller 232, the plasma display panel 210 may display a second image (S1455). In this case, the second image may be displayed based on the gray levels of the second display subfields SF3 to SF8 instead of the first and second scan subfields.

That is, as described above, the first and second scan subfields are used only for light sensing in the first and second remote control apparatuses 200a and 200b, respectively, and the gray level representation in the image display is the second. It is in charge of the display subfield.

Next, the second display subfield in the unit frame is reset based on the discharge cell coordinate information detected by the first and second remote controllers (S1360). In operation S1365, an image based on the movement of the first and second remote control apparatuses is displayed according to the reset second display subfield.

The first and second remote control devices 200a and 200b detect vertical light during the vertical scan subfield VSSF in the first and second scan subfields, respectively, and horizontally in the first and second scan subfields. The horizontal light is sensed during the scan subfield (HSSF).

In addition, the control unit 280 of the first remote control device 200a and the control unit 280 of the second remote control device 200b may each respond to a light sensing signal that detects light emitted from a specific discharge cell of the plasma display panel. Based on this, x, y coordinate signals in the plasma display panel are calculated.

The calculated coordinate signal information is transmitted to the pointing signal receiving apparatus 300 and the pointing signal processing apparatus 400 (S1457), and the pointing signal processing apparatus 400 displays an image signal corresponding to the coordinate information. Transfer to the device 100 (S1459). Specifically, such an image signal is input to the controller 170 of the video display device 100.

The image signal may be processed like the OSD signal to be overlaid and displayed on the second image that is already displayed. Alternatively, the display may be separately displayed on an area spaced apart from the second image that is already displayed.

The timing controller 232 in the display 180 resets the subfields, in particular, the second display subfields SF3 to SF8, in response to the image signal (S1460). Accordingly, the plasma display panel 210 may further display an image corresponding to the movement of the user in addition to the second image (S1465).

Meanwhile, when the second image is not displayed, only the image signal may be displayed.

16 to 18 show various examples of scan subfield setting in a frame.

First, referring to FIG. 16, when two remote control apparatuses are used, scan subfields corresponding to each remote control apparatus may be set in a unit frame of the image display apparatus 100.

That is, in Figs. 16A to 16C, the first scan subfield is fixed for the Ta period, and the second scan subfield is for the Tb1 period (Fig. 16 (a)) and the Tb2 period (Fig. 16 (b). ), Or set during the Tb3 period (Fig. 16 (c)).

FIG. 16A illustrates a first scan sub for the first remote control apparatus 200a of the first to second subfields SF1 and SF2 among the ten subfields SF1 to SF10 constituting the unit frame. Field is set, and the ninth to tenth subfields SF9 and SF10 are set as the second scan subfield for the second remote control apparatus 200b.

As such, in the frame, the first and second scan subfields are spaced apart from each other, so that each remote control apparatus can sense light only during each scan subfield period. Therefore, it is possible to easily distinguish inputs from a plurality of remote control devices.

16 (b) and 16 (c) illustrate that the position of the second scan subfield for the second remote control apparatus 200b is variable compared with that of FIG. 16 (a).

That is, the distance between the first scan subfield and the second scan subfield may vary for each frame. This may be referred to as subfield hopping.

When four subfields out of ten subfields are used as scan subfields in image display, only six display subfields may be insufficient in gray scale expression for image display. Particularly, as the back of the subfield arrangement is higher, in the state in which the assigned gray level is higher (for example, the first subfield SF1 is 1 gray and the 10th subfield SF10 is 256 gray), the ninth and tenth This may be further the case when the subfields SF9 and SF10 are allocated as the second scan subfield for the second remote control apparatus 200b.

Therefore, it is preferable that the distance between the first scan subfield and the second scan subfield varies according to the gray level of the unit frame or the gray level of the second display subfield in the frame.

For example, when the gray level of the unit frame is 512 gray levels, as illustrated in FIG. 16C, the second scan subfield may be allocated to the positions of the fourth and fifth subfields SF4 and SF5.

As another example, when the gray level of the unit frame is 364 gray levels, as shown in FIG. 16C, the second scan subfield may be allocated to the positions of the sixth and seventh subfields SF6 and SF7.

As another example, when the gray level of the unit frame is 128 gray levels, as illustrated in FIG. 16A, the second scan subfield may be allocated to the positions of the ninth and tenth subfields SF9 and SF10.

That is, when the first scan subfield is fixed to the low gradation subfield, the smaller the gradation of the unit frame or the gradation of the second display frame is, the greater the distance between the first scan subfield and the second scan subfield is. You can go far.

Next, in Figs. 17A to 17C, the second scan subfield is fixed to the Tb period, and the first scan subfield is set to the Ta1 period (Fig. 17A) and the Ta2 period (Fig. 17B). ), Or set during the Ta3 period (Fig. 17 (c)).

Since FIG. 17 (a) is the same as FIG. 16 (a), description thereof is omitted.

17 (b) and 17 (c) illustrate that the position of the first scan subfield for the first remote control apparatus 200a is variable compared to that of FIG. 17 (a).

That is, the distance between the first scan subfield and the second scan subfield may vary for each frame.

When four subfields out of ten subfields are used as scan subfields in image display, only six display subfields may be insufficient in gray scale expression for image display. Particularly, as the back of the subfield arrangement is higher, in the state where the assigned gray level is higher (for example, the first subfield SF1 is one gray level and the tenth subfield SF10 is 256 gray levels), This may be further the case when the 10 subfields SF9 and SF10 are allocated as the second scan subfield for the second remote control apparatus 200b.

Therefore, it is preferable that the distance between the first scan subfield and the second scan subfield varies according to the gray level of the unit frame or the gray level of the second display subfield in the frame.

For example, when the gray level of the unit frame is 32 gray levels, as shown in FIG. 17C, the second scan subfield may be allocated to the positions of the sixth and seventh subfields SF6 and SF7.

As another example, when the gray level of the unit frame is 64 gray levels, as illustrated in FIG. 16C, the second scan subfield may be allocated to the positions of the fourth and fifth subfields SF4 and SF5.

As another example, when the gradation of the unit frame is 128 gradations, as shown in FIG. 17A, the second scan subfield may be allocated to the positions of the ninth and tenth subfields SF9 and SF10.

That is, when the second scan subfield is fixed to the high gradation subfield, as the gradation of the unit frame or the gradation of the second display frame increases, the distance between the first scan subfield and the second scan subfield increases further. Can lose.

As described above, by configuring the first and second scan subfields in consideration of the gray level of the frame or the gray level of the display subfield, it is possible to implement the present invention without degrading the gray level expression power of the displayed image.

On the other hand, the above-described setting of the first scan subfield and the second scan subfield may be performed between consecutive frames in which one stage is not in the frame. That is, it may be selectively performed according to the gray level of the frame or the gray level of the second display subfield in the frame.

When the gradation of the frame is quite high, for example, when the gradation of the frame is 910 gradations, it is also possible to set the first scan period in the first frame and the second scan period in the second frame. It is preferable that the first scan period and the second scan period at this time are not the same subfield.

FIG. 18A illustrates setting the first and second subfields as the first scan subfield in the first frame, and FIG. 18B illustrates the second frame in the second frame. For example, the fourth and fifth subfields are set as the second scan subfield.

Accordingly, each of the remote controllers 200a and 200b detects light in the scan subfields for different frame periods and calculates position information thereof.

19A to 20D illustrate various user interfaces of an image display device in a touch pen mode.

FIG. 19A illustrates an object 1910 indicating whether to enter the touch pen mode on the display 180 of the image display apparatus 100 when receiving a pairing signal from the first remote control apparatus 200a (S1310). do.

When it is determined to enter the touch pen mode by the remote controller or the local key input, the image display apparatus 100 transmits a pairing response signal to the first remote controller 200a as described above, and thereafter. , Touch pen mode is entered.

19B illustrates that a predetermined image is displayed on the display 180 according to the movement of the first remote controller 200a in the touch pen mode. In addition, an example of displaying the object 1920a indicating that the first remote control apparatus 200a is in use is part of the display 180. As a result, the user can briefly grasp that the first remote control apparatus 200a is in use.

19C illustrates an object 1930 indicating whether the touch pen mode is terminated on the display 180 of the image display apparatus 100 when the first remote control apparatus 200a is stopped for a predetermined time or more.

When it is determined that the touch pen mode is terminated by the remote controller or the local key input, the image display apparatus 100 no longer displays an image according to the movement of the first remote controller 200a.

Next, FIG. 20A illustrates an image display apparatus 100 when a pairing signal is received from the second remote control apparatus 200b while the first remote control apparatus 200a is in use in the touch pen mode (S1340). An object 2010 indicating whether the second remote controller 200b is added to the display 180 of FIG.

FIG. 20B illustrates that each image is displayed on the display 180 according to the movement of the first and second remote control devices 200a and 200b in the touch pen mode. In addition, an example of displaying the objects 2020a and 2020b indicating that the first and second remote control devices 200a and 200b are in use is part of the display 180. As a result, the user can briefly grasp that the first and second remote control apparatuses 200a and 200b are in use.

FIG. 20C illustrates an object 2030 indicating whether the touch pen mode is terminated on the display 180 of the image display apparatus 100 when the second remote control apparatus 200b is suspended for more than a predetermined time.

When it is determined that the touch pen mode is terminated by the remote controller or the local key input, the image display apparatus 100 no longer displays an image according to the movement of the second remote controller 200a.

20D illustrates that after the use of the second remote control apparatus 200b is terminated, only the first remote control apparatus 200a is used. Subsequently, a predetermined image is displayed on the display 180 according to the movement of the first remote controller 200a, and an object 1920a indicating that the first remote controller 200a is in use is displayed. As a result, the user can briefly grasp that the first remote control apparatus 200a is in use.

In this way, the image display is performed based on the respective position information from the plurality of remote control apparatuses, so that the user can easily perform the touch pen mode using the remote control apparatus. Accordingly, the user's convenience is improved.

In addition, various user interfaces are possible in the touch pen mode, thereby improving user convenience.

The image display device and its operation method according to the present invention are not limited to the configuration and method of the embodiments described as described above, but the embodiments are all or all of the embodiments so that various modifications can be made. Some may be optionally combined.

On the other hand, the operation method of the remote control apparatus or the image display apparatus of the present invention can be implemented as a processor-readable code on a processor-readable recording medium provided in the image display apparatus. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet. . The processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

Claims (20)

In the operating method of the image display device for displaying an image using a remote control device for sensing the light emitted from the discharge cells of the plasma display panel,
When the first pairing signal is received from the first remote control device, at least one subfield among a plurality of subfields forming a frame is configured to detect a coordinate of a discharge cell in the first remote control device. Setting a subfield and setting another subfield as a first display subfield for displaying a first image;
Displaying the first image according to the first display subfield;
When the second pairing signal is received from the second remote control device, a part of the plurality of subfields forming the frame is set as the first scan subfield for detecting the coordinate of the discharge cell in the first remote control device. Setting another part as a second scan subfield for detecting coordinates of a discharge cell in the second remote control device, and setting the remaining subfield as a second display subfield for displaying a second image; And
And displaying the second image according to the second display subfield. The method of claim 1,
The setting of the first and second scan subfields may include:
And selectively performed according to the gradation of the frame or the gradation of the second display subfield in the frame. The method of claim 1,
And the distance between the first scan subfield and the second scan subfield is variable for each frame. The method of claim 1,
And the first and second scan subfields in the frame are spaced apart from each other. The method of claim 1,
And at least one position of the first scan subfield or the second scan subfield is fixed for each frame. The method of claim 1,
And when the first pairing signal is received from the first remote control device, after completing setting of the first scan subfield, transmitting a pairing response signal to the first remote control device. How the device works. The method of claim 1,
And when the second pairing signal is received from the second remote control device, after completing setting of the second scan subfield, transmitting a pairing response signal to the second remote control device. How the device works. The method of claim 1,
Resetting a first display subfield in a unit frame based on the discharge cell coordinate information sensed by the first remote control apparatus; And
And displaying an image corresponding to the movement of the first remote control device according to the reset first display subfield. The method of claim 1,
Resetting a second display subfield in a unit frame based on the discharge cell coordinate information sensed by the first and second remote control devices; And
And displaying an image corresponding to the movement of the first and second remote control apparatuses according to the reset second display subfield. The method of claim 1,
And displaying an object indicating a pen touch mode when at least one of the first remote control device and the second remote control device is used. In the operating method of the image display device for displaying an image using a remote control device for sensing the light emitted from the discharge cells of the plasma display panel,
When pairing with a plurality of remote controllers is performed, a part of the plurality of subfields forming a frame is set as a first scan subfield for detecting a coordinate of the discharge cell in the first remote controller, and the other part. Setting a second scan subfield for detecting coordinates of a discharge cell in the second remote control device and setting the remaining subfields as display subfields for displaying a second image; And
And displaying a predetermined image according to the second display subfield.
And at least one of the first scan subfield and the second scan subfield is variable for each frame. The method of claim 11,
And at least one of the first scan subfield and the second scan subfield varies in position depending on the display gray level of the frame or the display gray level of the display subfield in the frame. The method of claim 11,
And at least one of the first scan subfield and the second scan subfield varies in position depending on the display gray level of the frame or the display gray level of the display subfield in the frame. When the first pairing signal is received from the first remote control device and includes a plurality of discharge cells, at least one subfield of the plurality of subfields forming a frame is coordinated with the discharge cell in the first remote control device. A plasma display panel configured as a first scan subfield for sensing and sequentially emitting vertical address light and horizontal address light during the first subfield period; And
And a controller configured to control to display a predetermined image corresponding to the position of the first remote controller.
The plasma display panel,
When the second pairing signal is received from the second remote control device, a part of the plurality of subfields forming the frame is set as the first scan subfield for detecting the coordinate of the discharge cell in the first remote control device. And setting another part as a second scan subfield for detecting coordinates of the discharge cells in the second remote control device so that the vertical address light and the horizontal address light are sequentially sequential during the first and second subfield periods. The image display device, characterized in that for emitting. 15. The method of claim 14,
The setting of the first scan subfield and the second scan subfield in the frame is selectively performed according to the gray level of the frame or the gray level of the second display subfield in the frame. 15. The method of claim 14,
And the distance between the first scan subfield and the second scan subfield is variable for each frame. 15. The method of claim 14,
And at least one position of the first scan subfield or the second scan subfield is fixed for each frame. 15. The method of claim 14,
The control unit,
And display a first image corresponding to the position of the first remote control apparatus and a second image corresponding to the position of the second remote control apparatus. 15. The method of claim 14,
And an interface unit configured to receive an image signal corresponding to a position of the remote controller from an external pointing signal processor.
The control unit,
And display the image according to the image signal. 15. The method of claim 14,
A pointing signal receiver for receiving coordinate information from the remote control device; And
And a pointing signal processor configured to output a predetermined image signal based on the coordinate information received from the pointing signal receiver.
The control unit,
And display the image according to the image signal.

Images