KR20130071802A - Display module, and image display apparatus including the same - Google Patents

Abstract

PURPOSE: A display module and a video display device equipped with the same are provided to highlight the middle and lower parts of a liquid crystal display panel, thereby improving user convenience. CONSTITUTION: A control unit processes an input video into signals. Multiple backlight lamps (252) are placed in a row at the lower side of a liquid crystal display panel. A lamp driving unit (256) operates the multiple lamps to make a unit frame period include a first period and a second period. During the first period of a frame, lamps located in the middle part of the panel are turned on. During the second period of the frame, all the lamps on the panel except for the lamps located in the middle part are turned on. [Reference numerals] (190) Power supply; (210b) Liquid crystal panel; (232) Timing controller; (234) Gate driver; (236) Data driver; (252) Backlight lamp; (256) Lamp driving unit

Description

Display module, and image display apparatus having the same {Display module, and image display apparatus including the same}

The present invention relates to a display module and an image display apparatus having the same, and more particularly, to a display module capable of improving a user's ease of use, and an image display apparatus having the same.

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. Currently, broadcasting is changing from analog broadcasting to digital broadcasting around the world.

Digital broadcasting refers to broadcasting in which digital video and audio signals are transmitted. 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. Also, unlike analog broadcasting, digital broadcasting is capable of bidirectional service.

Disclosure of Invention An object of the present invention is to provide a display module and an image display device having the same, which can improve user convenience.

Another object of the present invention is to provide a display module that can emphasize an area mainly viewed by a user when a plurality of backlight lamps are arranged in a row below the liquid crystal display panel, and an image display device having the same. Is in.

An image display apparatus according to an embodiment of the present invention for achieving the above object includes a control unit for signal processing an input image, a display module for displaying a signal processed image, the display module, a liquid crystal display panel; A lower portion of the liquid crystal display panel includes a plurality of backlight lamps arranged in a line and a lamp driver for driving the plurality of lamps, wherein the lamp driving unit includes a plurality of lamps in which a unit frame section is disposed in a central area of the plurality of lamps. The plurality of lamps are driven to include a first section for turning on and a second section for turning on lamps disposed in the remaining area other than the center area among the plurality of lamps.

In addition, the display module according to an embodiment of the present invention for achieving the above object, a liquid crystal display panel, a plurality of backlight lamps arranged in a line, and a lamp driver for driving a plurality of lamps in a lower side of the liquid crystal display panel The lamp driving unit may include a first frame for turning on lamps disposed in a central area of the plurality of lamps, and a lamp frame for turning on lamps disposed in a remaining area other than the center area of the plurality of lamps. The plurality of lamps are driven to include two sections.

According to an exemplary embodiment of the present invention, a plurality of backlight lamps are arranged in a row below the liquid crystal display panel of the image display device, and a unit frame section turns on lamps disposed in a central area among the plurality of lamps. By driving the plurality of lamps to include a section, a second section for turning on lamps disposed in the remaining area other than the center area of the plurality of lamps, the center portion and the bottom portion of the liquid crystal display panel are further emphasized to display You can do it. Accordingly, the area mainly viewed by the user can be emphasized, so that the user's convenience can be increased.

In particular, when the caption information, the caption information, or the text information is included in the image displayed on the display module, the plurality of lamps include a second section for turning on lamps disposed in the remaining areas other than the center area. By driving the lamps, the center portion and the bottom portion of the liquid crystal display panel can be further emphasized and displayed. Accordingly, the usability of the user can be increased.

1 is a view showing an appearance of a video display device of the present invention.
2 is an internal block diagram of an image display apparatus according to an embodiment of the present invention.
3A illustrates an internal block diagram of the display module of FIG. 2.
FIG. 3B is a diagram illustrating the arrangement of the backlight lamp of FIG. 3A.
FIG. 3C is a diagram illustrating an area mainly viewed by a user among display modules having the backlight lamp arrangement structure of FIG. 3B.
FIG. 4 is an internal block diagram of the control unit of FIG. 2. FIG.
5 is a diagram illustrating various formats of a 3D image.
6 is a diagram illustrating an operation of a viewing apparatus according to the format of FIG. 5.
7 is a diagram illustrating various scaling methods of 3D video signals according to an embodiment of the present invention.
FIG. 8 is a diagram illustrating an image formed by a left eye image and a right eye image.
9 is a diagram illustrating a depth of a 3D image according to a distance between a left eye image and a right eye image.
FIG. 10 is a diagram illustrating a control method of the remote controller of FIG. 2.
11 is an internal block diagram of the remote control device of FIG. 2.
FIG. 12 is a diagram illustrating scanning timings of backlight lamps in response to a first vertical synchronization frequency in accordance with an embodiment of the present invention.
FIG. 13 is a diagram illustrating backlight light output from a display module by scanning timing of backlight lamps of FIG. 12.
FIG. 14 is a diagram illustrating scanning timing of backlight lamps in response to a vertical synchronizing frequency repeated in accordance with another embodiment of the present invention.
FIG. 15 is a diagram illustrating backlight light output from a display module by scanning timing of backlight lamps of FIG. 14.

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 view showing an appearance of a video display device of the present invention.

Referring to FIG. 1, an image display apparatus 100 according to an embodiment of the present invention may be a fixed image display apparatus or a mobile image display apparatus.

According to the embodiment of the present invention, the image display apparatus 100 can perform signal processing of a 3D image. For example, when the 3D image input to the image display apparatus 100 includes a plurality of viewpoint images, the left eye image and the right eye image are signal processed, and the left eye image and the right eye image are arranged according to the format of FIG. 5. The 3D video can be displayed according to the format.

Meanwhile, the video display device 100 described in the present specification may include a TV receiver, a monitor, a projector, a notebook computer, a digital broadcasting terminal, and the like.

2 is an internal block diagram of an image display apparatus according to an embodiment of the present invention.

2, an image display apparatus 100 according to an exemplary embodiment of the present invention includes a broadcast receiving unit 105, an external device interface unit 130, a storage unit 140, a user input interface unit 150, (Not shown), a control unit 170, a display 180, an audio output unit 185, and a viewing device 195.

The broadcast receiving unit 105 may include a tuner unit 110, a demodulation unit 120, and a network interface unit 130. Of course, it is possible to design the network interface unit 130 not to include the tuner unit 110 and the demodulation unit 120 as necessary, and to provide the network interface unit 130 with the tuner unit 110 And the demodulation unit 120 are not included.

The tuner unit 110 selects an RF broadcast signal corresponding to a channel selected by the user or all pre-stored channels among RF (Radio Frequency) broadcast signals received through the antenna 50. Also, the selected RF broadcast signal is converted into an intermediate frequency signal, a baseband image, or a voice signal.

For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF). If the selected RF broadcast signal is an analog broadcast signal, it is converted into an analog baseband image or voice signal (CVBS / SIF). That is, the tuner unit 110 can process a digital broadcast signal or an analog broadcast signal. The analog baseband video or audio signal (CVBS / SIF) output from the tuner unit 110 can be directly input to the controller 170.

The tuner unit 110 may receive an RF broadcast signal of a single carrier according to an Advanced Television System Committee (ATSC) scheme or an RF broadcast signal of a plurality of carriers according to a DVB (Digital Video Broadcasting) scheme.

Meanwhile, the tuner unit 110 sequentially selects RF broadcast signals of all broadcast channels stored through a channel memory function among the RF broadcast signals received through the antenna in the present invention, and sequentially selects RF broadcast signals of the intermediate frequency signal, baseband image, . ≪ / RTI >

On the other hand, the tuner unit 110 may be provided with a plurality of tuners in order to receive broadcast signals of a plurality of channels. Alternatively, a single tuner that simultaneously receives broadcast signals of a plurality of channels is also possible.

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. The control unit 170 performs demultiplexing, video / audio signal processing, and the like, and then outputs an image to the display 180 and outputs audio to the audio output unit 185.

The external device interface unit 130 can transmit or receive data with the connected external device 190. [ 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 can be connected to an external device such as a DVD (Digital Versatile Disk), a Blu ray, a game device, a camera, a camcorder, a computer , And may perform an input / output operation with an external device.

The A / V input / output unit can receive video and audio signals from an external device. Meanwhile, the wireless communication unit can perform short-range wireless communication with other electronic devices.

The network interface unit 135 provides an interface for connecting the video display device 100 to a wired / wireless network including the Internet network. For example, the network interface unit 135 can receive, via the network, content or data provided by the Internet or a content provider or a network operator.

The storage unit 140 may store a program for each signal processing and control in the control unit 170 or may store the processed video, audio, or data signals.

In addition, the storage unit 140 may perform a function for temporarily storing video, audio, or data signals input to the external device interface unit 130. [ In addition, the storage unit 140 may store information on a predetermined broadcast channel through a channel memory 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 unit 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.

(Not shown), such as a power key, a channel key, a volume key, and a set value, from the remote control apparatus 200, (Not shown) that senses a user's gesture to the control unit 170 or transmits a signal from the control unit 170 to the control unit 170 It is possible to transmit it to the sensor unit (not shown).

The control unit 170 demultiplexes the input stream or processes the demultiplexed signals through the tuner unit 110 or the demodulation unit 120 or the external device interface unit 130 so as to output the video or audio output Signals can be generated and output.

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

The audio signal processed by the control unit 170 may be output to the audio output unit 185 as an audio signal. The audio 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. 4.

In addition, the control unit 170 can control the overall operation in the video display device 100. [ For example, the control unit 170 may control the tuner unit 110 to control the tuning of the RF broadcast corresponding to the channel selected by the user or the previously 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.

Meanwhile, the control unit 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.

Meanwhile, the controller 170 may generate a 3D object for a predetermined 2D object among the images displayed on the display 180, and display the 3D object. For example, the object may be at least one of a connected web screen (newspaper, magazine, etc.), EPG (Electronic Program Guide), various menus, widgets, icons, still images, moving images, and text.

Such a 3D object may be processed to have a different depth than the image displayed on the display 180. [ Preferably, the 3D object may be processed to appear protruding from the image displayed on the display 180.

On the other hand, the control unit 170 can recognize the position of the user based on the image photographed from the photographing unit (not shown). For example, the distance (z-axis coordinate) between the user and the image display apparatus 100 can be grasped. In addition, the x-axis coordinate and the y-axis coordinate in the display 180 corresponding to the user position can be grasped.

Although not shown in the drawing, a channel browsing processing unit for generating a channel signal or a thumbnail image corresponding to an external input signal may be further provided. The channel browsing processing unit receives the stream signal TS output from the demodulation unit 120 or the stream signal output from the external device interface unit 130 and extracts an image from an input stream signal to generate a thumbnail image . The generated thumbnail image may be stream-decoded together with a decoded image and input to the controller 170. The control unit 170 may display a thumbnail list having a plurality of thumbnail images on the display 180 using the input thumbnail image.

At this time, the thumbnail list may be displayed in a simple view mode displayed on a partial area in a state where a predetermined image is displayed on the display 180, or in a full viewing mode displayed in most areas of the display 180. The thumbnail images in the thumbnail list can be sequentially updated.

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

Meanwhile, in the present specification, the terms display 180 and display module 180 are used interchangeably, but they may be used in the same sense.

The display 180 may include a liquid crystal display panel. This will be described later with reference to FIG. 3A. On the other hand, the display 180 may be a three-dimensional display (3D display).

In order to view the three-dimensional image, the display 180 may be divided into an additional display method and a single display method.

The single display method can implement a 3D image only on the display 180 without a separate additional display, for example, glass, and examples thereof include a lenticular method, a parallax barrier, and the like Various methods can be applied.

In addition, the additional display method can implement a 3D image using an additional display as the viewing device 195 in addition to the display 180. For example, various methods such as a head mount display (HMD) type and a glasses type are applied .

On the other hand, the spectacle type may be divided into a passive system such as a polarized glasses type and an active system such as a shutter glass type. In addition, the head mounted display can be divided into a passive type and an active type.

On the other hand, the viewing apparatus 195 may be a 3D glass for stereoscopic viewing. The glass 195 for 3D may include a passive polarizing glass or an active shutter glass, and may be a concept including the head mount type described above.

For example, when the viewing apparatus 195 is a polarizing glass, the left eye glass can be realized as a left eye polarizing glass, and the right eye glass can be realized as a right eye polarizing glass.

As another example, when the viewing apparatus 195 is a shutter glass, the left eye glass and the right eye glass can be alternately opened and closed.

Meanwhile, the display 180 may be configured as a touch screen and used as an input device in addition to the output device.

The audio output unit 185 receives the signal processed by the control unit 170 and outputs it as a voice.

A photographing unit (not shown) photographs the user. The photographing unit (not shown) may be implemented by a single camera, but the present invention is not limited thereto, and may be implemented by a plurality of cameras. On the other hand, the photographing unit (not shown) may be embedded in the image display device 100 on the upper side of the display 180 or may be disposed separately. The image information photographed by the photographing unit (not shown) may be input to the control unit 170.

The control unit 170 can detect the gesture of the user based on each of the images photographed from the photographing unit (not shown) or the signals sensed from the sensor unit (not shown) or a combination thereof.

The remote control apparatus 200 transmits the user input to the user input interface unit 150. [ To this end, the remote control apparatus 200 can use Bluetooth, RF (radio frequency) communication, infrared (IR) communication, UWB (Ultra Wideband), ZigBee, or the like. Also, the remote control apparatus 200 can receive the video, audio, or data signal output from the user input interface unit 150 and display it or output it by the remote control apparatus 200.

Meanwhile, a block diagram of the image display device 100 shown in FIG. 2 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 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.

2, the video display apparatus 100 does not include the tuner unit 110 and the demodulation unit 120 shown in FIG. 2, but may be connected to the network interface unit 130 or the external device interface unit 135 to play back the video content.

On the other hand, the image display apparatus 100 is an example of a video signal processing apparatus that performs signal processing of an image stored in the apparatus or an input image. Another example of the image signal processing apparatus includes a display 180 shown in FIG. 2, A set-top box excluding the audio output unit 185, a DVD player, a Blu-ray player, a game machine, a computer, and the like may be further exemplified.

3A illustrates an internal block diagram of the display module of FIG. 2.

Referring to the drawings, a liquid crystal display panel (LCD panel) -based display module 180 according to an embodiment of the present invention may include a liquid crystal display panel 210, a driving circuit unit 230, and a backlight unit 250. have.

In the liquid crystal display panel 210, in order to display an image, a plurality of gate lines GL and data lines DL are arranged in a matrix, and a thin film transistor and a pixel electrode connected thereto are formed in the crossing regions. And a first substrate, a second substrate provided with a common electrode, and a liquid crystal layer formed between the first substrate and the second substrate.

The driving circuit 230 drives the liquid crystal display panel 210 through a control signal and a data signal supplied from the controller 170 of FIG. 2. To this end, the driving circuit unit 230 includes a timing controller 232, a gate driver 234, and a data driver 236.

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 with the gate driver 234 and the data driver 236. ), The R, G, and B data signals are rearranged and provided to the data drive 236.

On the other hand, under the control of the gate driver 234, the data driver 236, and the timing controller 232, the scan signal and the image signal are transmitted to the liquid crystal display panel 210 through the gate line GL and the data line DL. Supply.

The backlight unit 250 supplies light to the liquid crystal display panel 210. To this end, the backlight unit 250 may include a plurality of backlight lamps 252, which are light sources, and a lamp driver that scans and drives the backlight lamp 252 to turn on / off the backlight lamp 252. 256).

When a plurality of backlight lamps (not shown) are turned on, a diffuser plate (not shown) for diffusing light from the lamp, a reflector plate (not shown) for reflecting light, and an optical sheet (not shown) for polarizing, point light, and diffusing light The light is irradiated onto the entire surface of the liquid crystal display panel 210 by using the same or the like.

On the other hand, a plurality of backlight lamps (not shown) according to an embodiment of the present invention can be turned on at the same time, or can be sequentially driven for each block. Such a plurality of backlight lamps (not shown) may be a backlight lamp of a light emitting diode (LED) type.

A predetermined image is displayed using light emitted from the backlight unit 250 in a state in which light transmittance of the liquid crystal layer is controlled by an electric field formed between the pixel electrode and the common electrode of the liquid crystal display panel 210.

The power supply unit 190 may supply the common electrode voltage Vcom to the liquid crystal display panel 210 and supply the gamma voltage to the data driver 236. In addition, the driving power for driving the backlight lamp 252 is supplied to the backlight unit 250.

FIG. 3B is a diagram illustrating the arrangement of the backlight lamp of FIG. 3A.

Referring to the drawings, the image display apparatus 100 according to an exemplary embodiment of the present invention includes a liquid crystal display panel 210 and a plurality of backlight lamps 252-1, 252-2, ... 252-8. It may include a display 180.

The plurality of backlight lamps 252-1, 252-2,... 252-8 are disposed on the rear surface of the liquid crystal display panel 210, in particular, arranged in a row below the liquid crystal display panel 210. When at least some of the plurality of backlight lamps 252-1, 252-2, ... 252-8 are turned on, a diffuser plate for diffusing light from the lamp, a reflector plate for reflecting light, polarizing, point light, and diffusing light Light is irradiated to the entire surface of the liquid crystal display panel 210 by the optical sheet or the like. This is called an edge type.

Meanwhile, the plurality of backlight lamps 252-1, 252-2,... 252-8 disposed under the liquid crystal display panel 210 may be simultaneously turned on or sequentially driven. This will be described later with reference to FIG. 12 or below.

Meanwhile, unlike the drawings, the number of backlight lamps arranged in a row below the liquid crystal display panel 210 may be variable.

FIG. 3C is a diagram illustrating an area mainly viewed by a user among display modules having the backlight lamp arrangement structure of FIG. 3B.

Referring to the drawings, in general, when a user views an image through an image display apparatus, the user mainly gazes at the center area A2 of the display module 180 for viewing. In addition, most of the captions are located in the lower area A2 of the display module 180, and the captions are often moved from right to left.

That is, as shown in the drawing, the center area 410 of the center area A2 of the display module 180 and the lower area areas 415 and 420 of the lower area A2 may be areas that a user mainly views.

Meanwhile, the upper area A1 of the display module 180 may be an area that the user does not carefully watch.

In view of such viewing conditions, when the backlight lamps 252-1, 252-1,..., 252-8 are arranged in a row below the display module 180 in the embodiment of the present invention, this is horizontal. 1 bar structure), the center area 410 of the display module 180, the lower area (415, 420) is mainly focused on the backlight lamps (252-1, 252-1, ..., 252-8) of the Adjust the scanning timing. This will be described later with reference to FIG. 12 or below.

4 is an internal block diagram of the controller of FIG. 2, FIG. 5 is a diagram illustrating various formats of a 3D image, and FIG. 6 is a diagram illustrating an operation of a viewing apparatus according to the format of FIG. 5.

The control unit 170 includes a demultiplexing unit 310, an image processing unit 320, a processor 330, an OSD generating unit 340, a mixer 345, A frame rate conversion unit 350, and a formatter 360. [0031] An audio processing unit (not shown), and a data processing unit (not shown).

The demultiplexer 310 demultiplexes the input stream. For example, when an MPEG-2 TS is input, it can be demultiplexed into video, audio, and data signals, respectively. The stream signal input to the demultiplexer 310 may be a stream signal output from the tuner 110 or the demodulator 120 or the external device interface 130.

The image processor 320 may perform image processing of the demultiplexed image signal. For this, the image processing unit 320 may include a video decoder 325 and a scaler 335.

The video decoder 325 decodes the demultiplexed video signal and the scaler 335 performs scaling so that the resolution of the decoded video signal can be output from the display 180.

The video decoder 325 can include a decoder of various standards.

On the other hand, the image signal decoded by the image processing unit 320 can be divided into a case where there is only a 2D image signal, a case where a 2D image signal and a 3D image signal are mixed, and a case where there is only a 3D image signal.

For example, when an external video signal input from the external device 190 or a broadcast video signal of a broadcast signal received from the tuner unit 110 includes only a 2D video signal, when a 2D video signal and a 3D video signal are mixed And a case where there is only a 3D video signal. Accordingly, the controller 170, particularly, the image processing unit 320 and the like can process the 2D video signal, the mixed video signal of the 2D video signal and the 3D video signal, , A 3D video signal can be output.

Meanwhile, the image signal decoded by the image processing unit 320 may be a 3D image signal in various formats. For example, a 3D image signal composed of a color image and a depth image, or a 3D image signal composed of a plurality of view image signals. The plurality of viewpoint image signals may include, for example, a left eye image signal and a right eye image signal.

Here, the format of the 3D video signal is a side by side format (FIG. 5A) in which the left eye video signal L and the right eye video signal R are arranged left and right, as shown in FIG. 5, and up and down. Top / Down format (FIG. 5B) to arrange, Frame Sequential format (FIG. 5C) to arrange by time division, Interlaced format which mixes the left eye signal and the right eye video signal by line 5d), a checker box format (FIG. 5E) for mixing the left eye image signal and the right eye image signal for each box.

The processor 330 may control the overall operation in the image display apparatus 100 or in the control unit 170. [ For example, the processor 330 may control the tuner 110 to select a channel selected by the user or an RF broadcast corresponding to a previously stored channel.

In addition, the processor 330 may control the image display apparatus 100 by a user command or an internal program input through the user input interface unit 150. [

In addition, the processor 330 may perform data transfer control with the network interface unit 135 or the external device interface unit 130.

The processor 330 may control operations of the demultiplexing unit 310, the image processing unit 320, the OSD generating unit 340, and the like in the controller 170.

The OSD generator 340 generates an OSD signal according to a user input or itself. For example, based on a user input signal, a signal for displaying various information in a graphic or text form on the screen of the display 180 can be generated. The generated OSD signal may include various data such as a user interface screen of the video display device 100, various menu screens, a widget, and an icon. In addition, the generated OSD signal may include a 2D object or a 3D object.

The OSD generating unit 340 can generate a pointer that can be displayed on the display based on the pointing signal input from the remote control device 200. [ In particular, such a pointer may be generated by the pointing signal processor, and the OSD generator 240 may include such a pointing signal processor (not shown). Of course, a pointing signal processing unit (not shown) may be provided separately from the OSD generating unit 240.

The mixer 345 may mix the OSD signal generated by the OSD generator 340 and the decoded video signal processed by the image processor 320. At this time, the OSD signal and the decoded video signal may include at least one of a 2D signal and a 3D signal. The mixed video signal is supplied to a frame rate converter 350.

A frame rate converter (FRC) 350 can convert the frame rate of an input image. On the other hand, the frame rate converter 350 can output the frame rate without conversion.

The formatter 360 may arrange the left eye image frame and the right eye image frame of the frame rate-converted 3D image. The left eye glass of the 3D viewing apparatus 195 and the synchronization signal Vsync for opening the right eye glass can be output.

The formatter 360 receives the mixed signal, i.e., the OSD signal and the decoded video signal, from the mixer 345, and separates the 2D video signal and the 3D video signal.

In the present specification, a 3D video signal means a 3D object. Examples of the 3D object include a picuture in picture (PIP) image (still image or moving picture), an EPG indicating broadcasting program information, Icons, texts, objects in images, people, backgrounds, web screens (newspapers, magazines, etc.).

On the other hand, the formatter 360 can change the format of the 3D video signal. For example, it may be changed to any of the various formats illustrated in FIG. Accordingly, according to the format, as shown in FIG. 6, an operation of the viewing apparatus of the glasses type may be performed.

First, FIG. 6A illustrates an operation of the 3D glasses 195, in particular the shutter glass 195, when the formatter 360 arranges and outputs the frame sequential format among the formats of FIG. 5.

That is, when the left eye image L is displayed on the display 180, the left eye glass of the shutter glass 195 is opened and the right eye glass is closed. When the right eye image R is displayed, The left eye glass is closed, and the right eye glass is opened.

6B illustrates an operation of the 3D glass 195, particularly the polarized glass 195, when the formatter 360 outputs the side by side format of the format of FIG. 5. Meanwhile, the 3D glass 195 applied in FIG. 6B may be a shutter glass, and the shutter glass may be operated as a polarized glass by keeping both the left eye glass and the right eye glass open. .

Meanwhile, the formatter 360 may convert the 2D video signal into a 3D video signal. For example, according to a 3D image generation algorithm, an edge or a selectable object is detected in a 2D image signal, and an object or a selectable object according to the detected edge is separated into a 3D image signal and is generated . At this time, the generated 3D image signal can be separated into the left eye image signal L and the right eye image signal R, as described above.

Although not shown in the drawing, it is also possible that a 3D processor (not shown) for 3-dimensional effect signal processing is further disposed after the formatter 360. The 3D processor (not shown) can process the brightness, tint, and color of the image signal to improve the 3D effect. For example, it is possible to perform signal processing such as making the near field clear and the far field blurring. On the other hand, the functions of such a 3D processor can be merged into the formatter 360 or merged into the image processing unit 320. [ This will be described later with reference to FIG. 7 and the like.

Meanwhile, the audio processing unit (not shown) in the control unit 170 can perform the audio processing of the demultiplexed audio signal. To this end, the audio processing unit (not shown) may include various decoders.

In addition, the audio processing unit (not shown) in the control unit 170 can process a base, a treble, a volume control, and the like.

The data processing unit (not shown) in the control unit 170 can perform data processing of the demultiplexed data signal. For example, if the demultiplexed data signal is a coded data signal, it can be decoded. The encoded data signal may be EPG (Electronic Program Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted on each channel.

4 shows that the signals from the OSD generating unit 340 and the image processing unit 320 are mixed in the mixer 345 and then 3D processed in the formatter 360. However, May be located behind the formatter. That is, the output of the image processing unit 320 is 3D-processed by the formatter 360, and the OSD generating unit 340 performs 3D processing together with the OSD generation. Thereafter, the processed 3D signals are mixed by the mixer 345 It is also possible to do.

Meanwhile, the block diagram of the controller 170 shown in FIG. 4 is a block diagram for an embodiment of the present invention. Each component of the block diagram can be integrated, added, or omitted according to the specifications of the control unit 170 actually implemented.

In particular, the frame rate converter 350 and the formatter 360 are not provided in the controller 170, but may be separately provided.

7 is a diagram illustrating various scaling methods of 3D video signals according to an embodiment of the present invention.

Referring to the drawing, in order to increase the 3-dimensional effect, the controller 170 may perform 3D effect signal processing. Among them, in particular, the size or tilt of the 3D object in the 3D image may be adjusted.

As shown in FIG. 7A, the 3D image signal or the 3D object 510 in the 3D image signal may be enlarged or reduced 512 as a whole at a predetermined ratio, and as shown in FIGS. 7B and 7C. The 3D object may be partially enlarged or reduced (trapezoidal shapes 514 and 516). In addition, as shown in FIG. 7D, at least a part of the 3D object may be rotated (parallel quadrilateral shape) 518. This scaling (scaling) or skew adjustment can emphasize the 3D effect of a 3D object in a 3D image or a 3D image, that is, a 3D effect.

On the other hand, as the slope becomes larger, as shown in FIG. 7 (b) or 7 (c), the length difference between the parallel sides of the trapezoidal shapes 514 and 516 increases, or as shown in FIG. It gets bigger.

The size adjustment or the tilt adjustment may be performed after the 3D image signal is aligned in a predetermined format in the formatter 360. [ Or in the scaler 335 in the image processing unit 320. [ On the other hand, the OSD generation unit 340, it is also possible to create the object in the shape as shown in Figure 7 to generate the OSD to emphasize the 3D effect.

On the other hand, although not shown in the figure, as a signal processing for a three-dimensional effect, in addition to the size adjustment or tilt adjustment illustrated in FIG. 7, the brightness, tint and It is also possible to perform signal processing such as color adjustment. For example, it is possible to perform signal processing such as making the near field clear and the far field blurring. The signal processing for the 3D effect may be performed in the controller 170 or may be performed through a separate 3D processor. Particularly, when it is performed in the control unit 170, it is possible to perform it in the formatter 360 or in the image processing unit 320 together with the above-described size adjustment or tilt adjustment.

FIG. 8 is a diagram illustrating image formation by a left eye image and a right eye image, and FIG. 9 is a diagram illustrating a depth of a 3D image according to a gap between a left eye image and a right eye image.

First, referring to FIG. 8, a plurality of images or a plurality of objects 615, 625, 635, and 645 are illustrated.

First, the first object 615 includes a first left eye image 611 (L) based on the first left eye image signal and a first right eye image 613 (R) based on the first right eye image signal, It is exemplified that the interval between the first left eye image 611, L and the first right eye image 613, R is d1 on the display 180. [ At this time, the user recognizes that an image is formed at an intersection of an extension line connecting the left eye 601 and the first left eye image 611 and an extension line connecting the right eye 603 and the first right eye image 603. Accordingly, the user recognizes that the first object 615 is positioned behind the display 180. [

Next, since the second object 625 includes the second left eye image 621, L and the second right eye image 623, R and overlaps with each other and is displayed on the display 180, do. Accordingly, the user recognizes that the second object 625 is located on the display 180. [

Next, the third object 635 and the fourth object 645 are arranged in the order of the third left eye image 631, L, the second right eye image 633, R, the fourth left eye image 641, Right eye image 643 (R), and their intervals are d3 and d4, respectively.

According to the above-described method, the user recognizes that the third object 635 and the fourth object 645 are positioned at positions where the images are formed, respectively, and recognizes that they are located before the display 180 in the drawing.

At this time, it is recognized that the fourth object 645 is projected before the third object 635, that is, more protruded than the third object 635. This is because the interval between the fourth left eye image 641, L and the fourth right eye image 643, d4 is larger than the interval d3 between the third left eye image 631, L and the third right eye image 633, R. [

Meanwhile, in the embodiment of the present invention, the distance between the display 180 and the objects 615, 625, 635, and 645 recognized by the user is represented by a depth. Accordingly, it is assumed that the depth when the user is recognized as being positioned behind the display 180 has a negative value (-), and the depth when the user is recognized as being positioned before the display 180 (depth) has a negative value (+). That is, the greater the degree of protrusion in the user direction, the greater the depth.

9, the distance a between the left eye image 701 and the right eye image 702 of FIG. 9A is a distance between the left eye image 701 and the right eye image 702 shown in FIG. 9B. When (b) is smaller, it can be seen that the depth a 'of the 3D object of FIG. 9 (a) is smaller than the depth b' of the 3D object of FIG. 9 (b).

In this way, when the 3D image is exemplified as the left eye image and the right eye image, the positions recognized as images are different depending on the interval between the left eye image and the right eye image. Accordingly, by adjusting the display intervals of the left eye image and the right eye image, the depth of the 3D image or the 3D object composed of the left eye image and the right eye image can be adjusted.

FIG. 10 is a diagram illustrating a control method of the remote controller of FIG. 2.

As illustrated in FIG. 10A, a pointer 205 corresponding to the remote controller 200 is displayed on the display 180.

The user can move or rotate the remote control device 200 up and down, left and right (FIG. 10 (b)), front and rear (FIG. 10 (c)). The pointer 205 displayed on the display 180 of the video display device corresponds to the movement of the remote control device 200. [ The remote control apparatus 200 may be referred to as a spatial remote controller or a 3D pointing device because the pointer 205 is moved and displayed according to the movement in the 3D space as shown in the figure.

FIG. 10B illustrates that when the user moves the remote control apparatus 200 to the left side, the pointer 205 displayed on the display 180 of the image display apparatus also moves to the left side correspondingly.

Information on the motion of the remote control device 200 sensed through the sensor of the remote control device 200 is transmitted to the image display device. The image display device may calculate the coordinates of the pointer 205 from the information about the movement of the remote controller 200. The image display apparatus can display the pointer 205 so as to correspond to the calculated coordinates.

FIG. 10C illustrates a case in which the user moves the remote control apparatus 200 away from the display 180 while pressing a specific button in the remote control apparatus 200. Thereby, the selected area in the display 180 corresponding to the pointer 205 can be zoomed in and displayed. Conversely, when the user moves the remote control device 200 close to the display 180, the selection area within the display 180 corresponding to the pointer 205 may be zoomed out and zoomed out. On the other hand, when the remote control device 200 moves away from the display 180, the selection area is zoomed out, and when the remote control device 200 approaches the display 180, the selection area may be zoomed in.

On the other hand, when the specific button in the remote control device 200 is pressed, it is possible to exclude recognizing the up, down, left, and right movement. That is, when the remote control device 200 moves away from or near the display 180, the up, down, left and right movements are not recognized, and only the front and back movements can be recognized. Only the pointer 205 is moved in accordance with the upward, downward, leftward, and rightward movement of the remote control device 200 in a state where the specific button in the remote control device 200 is not pressed.

On the other hand, the moving speed and moving direction of the pointer 205 may correspond to the moving speed and moving direction of the remote control device 200.

11 is an internal block diagram of the remote control device of FIG. 2.

The remote control device 200 includes a wireless communication unit 825, a user input unit 835, a sensor unit 840, an output unit 850, a power supply unit 860, a storage unit 870, And a control unit 880.

The wireless communication unit 825 transmits / receives a signal to / from any one of the video display devices according to the above-described embodiments of the present invention. Of the video display devices according to the embodiments of the present invention, one video display device 100 will be described as an example.

In this embodiment, the remote control apparatus 200 may include an RF module 821 capable of transmitting and receiving signals with the image display apparatus 100 according to the RF communication standard. In addition, the remote control apparatus 200 may include an IR module 823 capable of transmitting and receiving a signal with the image display apparatus 100 according to the IR communication standard.

In this embodiment, the remote control device 200 transmits a signal containing information on the motion of the remote control device 200 to the image display device 100 through the RF module 821. [

In addition, the remote control apparatus 200 may receive a signal transmitted from the image display apparatus 100 through the RF module 821. In addition, the remote control apparatus 200 may transmit a command regarding power on / off, channel change, volume change, etc. to the image display apparatus 100 through the IR module 823 as necessary.

The user input unit 835 may include a keypad, a button, a touch pad, or a touch screen. The user can input a command related to the image display apparatus 100 to the remote control apparatus 200 by operating the user input unit 835. [ When the user input unit 835 has a hard key button, the user can input a command related to the image display device 100 to the remote control device 200 through the push operation of the hard key button. When the user input unit 835 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 remote control apparatus 200. [ In addition, the user input unit 835 may include various kinds of input means that the user can operate, such as a scroll key or a jog key, and the present embodiment does not limit the scope of the present invention.

The sensor unit 840 may include a gyro sensor 841 or an acceleration sensor 843. The gyro sensor 841 may sense information about the movement of the remote controller 200.

For example, the gyro sensor 841 can sense information about the operation of the remote control device 200 based on the x, y, and z axes. The acceleration sensor 843 can sense information on the moving speed of the remote control device 200 and the like. On the other hand, a distance measuring sensor can be further provided, whereby the distance to the display 180 can be sensed.

The output unit 850 may output an image or voice signal corresponding to the operation of the user input unit 835 or corresponding to the signal transmitted from the image display apparatus 100. [ The user can recognize whether the user input unit 835 is operated or whether the image display apparatus 100 is controlled through the output unit 850.

For example, the output unit 850 includes an LED module 851 that is turned on when a user input unit 835 is operated or a signal is transmitted / received to / from the video display device 100 through the wireless communication unit 825, a vibration module 853 for outputting sound, an acoustic output module 855 for outputting sound, or a display module 857 for outputting an image.

The power supply unit 860 supplies power to the remote control device 200. The power supply unit 860 may reduce power waste by stopping the power supply when the remote controller 200 does not move for a predetermined time. The power supply unit 860 may resume power supply when a predetermined key provided in the remote control device 200 is operated.

The storage unit 870 may store various types of programs, application data, and the like required for controlling or operating the remote control apparatus 200. If the remote control device 200 wirelessly transmits and receives a signal through the image display device 100 and the RF module 821, the remote control device 200 and the image display device 100 transmit signals through a predetermined frequency band Send and receive. The control unit 880 of the remote control device 200 stores information on a frequency band and the like capable of wirelessly transmitting and receiving signals with the video display device 100 paired with the remote control device 200 in the storage unit 870 Can be referenced.

The controller 880 controls various items related to the control of the remote controller 200. The control unit 880 transmits a signal corresponding to the predetermined key operation of the user input unit 835 or a signal corresponding to the motion of the remote control device 200 sensed by the sensor unit 840 through the wireless communication unit 825, (100).

FIG. 12 is a diagram illustrating scanning timings of backlight lamps in response to a first vertical synchronization frequency in accordance with an embodiment of the present invention.

Referring to the drawings, FIG. 12A illustrates a vertical synchronization frequency Vsync in the display module 180. The interval between the time point at which the first vertical sync frequency Vsync 1 is applied and the time point at which the second vertical sync frequency Vsync 2 is applied may correspond to the first frame Frame 1.

FIG. 12B illustrates a liquid crystal response curve of the liquid crystal display panel 210 and a backlight lamp driving period that is turned on according to the first frame Frame 1.

As shown in the drawing, when a scan signal is applied to the first gate electrode G1 disposed at the top of the liquid crystal display panel 210, the first liquid crystal response curve _LG1 may be illustrated as shown in the figure. Since the liquid crystal does not have a fast response characteristic, as shown in the figure, after a predetermined time elapses after the time of applying the scan signal, the liquid crystal responds to the maximum operation. In the figure, it is exemplified that the value of the liquid crystal response curve indicates a maximum near the time point at which the second vertical synchronization frequency Vsync 2 is applied.

Meanwhile, as described above with reference to FIG. 3C, since the upper area A1 of the liquid crystal display panel 210 is not an area mainly viewed by the user, it is not necessary to drive all of the backlight lamps. Thus, as shown in the drawing, the first liquid crystal response curve to correspond to a (L _G1), the lamp is arranged in the remaining area other than the central region of the plurality of lamps, during the first period (T1) (252-1,252-2,252-7,252 -8) can be turned on.

Next, when a scan signal is applied to the gate electrodes corresponding to the center area A2 of the liquid crystal display panel 210, a third liquid crystal response curve _LG3 may be illustrated as shown in the figure.

Meanwhile, as described above with reference to FIG. 3C, since the center area A2 of the liquid crystal display panel 210 is an area mainly viewed by the user, as shown in the drawing, the center area A2 corresponds to the third liquid crystal response curve _LG3 and the like. During the three period T3, the lamps 252-3, 252-4,... 252-6 disposed in the center area of the plurality of lamps may be turned on. As a result, the luminance of the area that is mainly viewed by the user is improved.

In this case, the third period T3 may be disposed within the second frame frame 1 rather than the first frame 1 in consideration of the third liquid crystal response curve _LG3 .

Meanwhile, all of the lamps 252-1,... 252-8 may be turned off during the second period T3 between the first period T1 and the third period T3.

Next, when a scan signal is applied to the gate electrodes corresponding to the lower region A3 of the liquid crystal display panel 210, the fifth liquid crystal response curve _LG5 may be illustrated as shown in the figure.

Meanwhile, as described above with reference to FIG. 3C, since the lower regions A3, particularly both lower regions 415 and 420 of the liquid crystal display panel 210 are areas mainly viewed by the user, the fifth liquid crystal response curve ( In response to L _G5 ), the lamps 252-1, 252-2, 252-7, and 252-8 may be turned on during the fourth period T4 during the fourth period T4.

On the other hand, during a fourth period (T4), the third liquid crystal response curve in response to the (L _G3), the lamp is arranged in the central area of the plurality of lamps (252-3,252-4, ... 252-6) Can be turned on continuously.

As a result, during the fourth period T4, all of the plurality of lamps 252-1,... 252-8 may be turned on. As a result, the luminance of the area that is mainly viewed by the user is improved.

For the next, the fifth period (T5), the third liquid crystal response curve (L _G3) is so maintained at the low level, the lamp is arranged in the central area of the plurality of lamps (252-3,252-4, ... 252 -6) can be turned off. That is, the lamps 252-1, 252-2, 252-7, and 252-8 disposed in the remaining area other than the center area among the plurality of lamps may be turned on.

FIG. 13 is a diagram illustrating backlight light output from a display module by scanning timing of backlight lamps of FIG. 12.

FIG. 13A illustrates lamps 252-1, 252-2, 252-7, and 252-8 disposed in the remaining area other than the center area among the plurality of lamps corresponding to the first period T1 of FIG. 12. Illustrate that. Accordingly, light is emitted from the left region 1310 and the right region 1315 of the display module 180.

FIG. 13B illustrates that all lamps 252-1,... 252-8 are turned off, corresponding to the second period T2 of FIG. 12. Accordingly, light may not be emitted from the entire display module 180.

FIG. 13C illustrates that lamps 252-3, 252-4,... 252-6 arranged in a central area among the plurality of lamps are turned on in response to the third period T3 of FIG. 12. Illustrate that. Accordingly, light is emitted from the central region 1320 of the display module 180.

FIG. 13D illustrates that all of the lamps 252-1,... 252-8 are turned on in response to the fourth period T4 of FIG. 12. Accordingly, light is emitted from the entire area 1320 of the display module 180.

FIG. 13E illustrates that lamps 252-1, 252-2, 252-7, and 252-8 disposed in the remaining area other than the center area among the plurality of lamps are turned on in response to the fifth period T5 of FIG. 12. Illustrate that. Accordingly, light is emitted from the left region 1310 and the right region 1315 of the display module 180.

12 to 13 illustrate scanning timings of backlight lamps in response to a first vertical synchronization frequency, and exemplarily illustrate scanning timings of backlight lamps with respect to the vertical synchronization frequency applied repeatedly.

FIG. 14 is a diagram illustrating scanning timing of backlight lamps in response to a vertical synchronizing frequency repeated in accordance with another embodiment of the present invention.

Referring to the drawings, FIG. 14A illustrates a vertical synchronization frequency in the display module 180. The interval between the time point at which the first vertical sync frequency Vsync 1 is applied and the time point at which the second vertical sync frequency Vsync 2 is applied corresponds to the first frame Frame 1 and the time point at which the second vertical sync frequency Vsync 2 is applied. The interval between the time point at which the third vertical sync frequency Vsync 3 is applied may correspond to the second frame (Frame 2).

FIG. 14B illustrates a liquid crystal response curve of the liquid crystal display panel 210 and a backlight lamp driving period that is turned on according to the repeated vertical synchronization frequency.

First, in a previous frame, when a scan signal is applied to the gate electrodes corresponding to the center area A2 of the liquid crystal display panel 210, the first period Ta corresponds to the liquid crystal response curve L _GP1 . During the operation, the lamps 252-3, 252-4,... 252-6 disposed in the center area of the plurality of lamps may be turned on. As a result, the luminance of the area that is mainly viewed by the user is improved.

Next, as shown in the drawing, when a scan signal is applied to the first gate electrode G1 disposed at the top of the liquid crystal display panel 210, the first liquid crystal response curve _LG1 may be illustrated as shown in the figure.

Meanwhile, as described above with reference to FIG. 3C, since the upper area A1 of the liquid crystal display panel 210 is not an area mainly viewed by the user, it is not necessary to drive all of the backlight lamps. Thus, as shown in the drawing, the first liquid crystal response curve to correspond to a (L _G1), the lamp is arranged in the remaining area other than the central region of the plurality of lamps, during the second period (Tb) (252-1,252-2,252-7,252 -8) can be turned on.

Meanwhile, in the previous frame, when a scan signal is applied to the gate electrodes corresponding to the lower area A3 of the liquid crystal display panel 210, the second period Tb corresponds to the liquid crystal response curve L _GP2 . During the operation, the lamps 252-1, 252-2, 252-7, and 252-8 disposed in the remaining area other than the center area of the plurality of lamps may be turned on.

On the other hand, during the second period Tb, in response to the liquid crystal response curve L _GP1 of the previous frame, the lamps 252-3, 252-4, ... 252-6 arranged in the center region of the plurality of lamps. ) Can be turned on continuously.

As a result, during the second period Tb, all of the plurality of lamps 252-1,... 252-8 may be turned on. As a result, the luminance of the area that is mainly viewed by the user is improved.

Next, during the third period Tc, since the liquid crystal response curve L _GP1 of the previous frame maintains a low level, the lamps 252-3, 252-4, ... disposed in the center region of the plurality of lamps. 252-6) can be turned off. That is, the lamps 252-1, 252-2, 252-7, and 252-8 disposed in the remaining area other than the center area among the plurality of lamps may be turned on.

Next, all of the lamps 252-1,... 252-8 may be turned off during the fourth period Td.

As described above, the first to fourth periods Ta to Td may be repeated to correspond to the vertical synchronization frequency that is repeatedly applied. Accordingly, the area mainly viewed by the user can be emphasized, so that the user's convenience can be increased.

FIG. 15 is a diagram illustrating backlight light output from a display module by scanning timing of backlight lamps of FIG. 14.

FIG. 15A illustrates lamps 252-3, 252-4,... Illustrate that. Accordingly, light is emitted from the central region 1320 of the display module 180.

FIG. 15B illustrates that all the lamps 252-1,... 252-8 are turned on in response to the second period Tb of FIG. 14. Accordingly, light is emitted from the entire area 1330 of the display module 180.

FIG. 15C illustrates that lamps 252-1, 252-2, 252-7, and 252-8 disposed in the remaining area other than the center area among the plurality of lamps are turned on in response to the third period Tc of FIG. 14. Illustrate that. Accordingly, light is emitted from the left region 1310 and the right region 1315 of the display module 180.

FIG. 15D illustrates that all the lamps 252-1,... 252-8 are turned off, corresponding to the fourth period Td of FIG. 14. Accordingly, light may not be emitted from the entire display module 180.

The display module and the image display device including the same according to the present invention are not limited to the configuration and method of the embodiments described as described above, but the embodiments may be modified in various ways so that various modifications may be made. Or some may be selectively combined.

Meanwhile, the operation method of the image display apparatus of the present invention can be implemented as a code that can be read by a processor on a recording medium readable by a processor included 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 recording medium that can be read by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an 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 . In addition, the processor-readable recording medium may be distributed over network-connected computer systems so that code readable by the processor in a distributed fashion can be stored and executed.

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 (11)

A controller configured to process an input image; And
And a display module configured to display the signal processed image.
The display module includes:
A liquid crystal display panel;
A plurality of backlight lamps arranged in a row below the liquid crystal display panel; And
And a lamp driver driving the plurality of lamps.
The lamp driving unit,
The unit frame section may include a first section for turning on lamps disposed in a central area among the plurality of lamps, and a second section for turning on lamps disposed in the remaining area other than the central area among the plurality of lamps. And driving the plurality of lamps. The method of claim 1,
The unit frame section,
And a third section in which all of the plurality of lamps are turned on between the first section and the second section. The method of claim 1,
The unit frame section,
And a fourth section in which all of the plurality of lamps are turned off after the second section. The method of claim 1,
The control unit,
When the image displayed on the display module includes caption information, caption information, or text information, a second section in which the unit frame section turns on lamps disposed in the remaining area other than the center area among the plurality of lamps And a lamp driving unit to control the lamp driving unit. The method of claim 1,
The lamp driving unit,
And a first section and a second section in response to a liquid crystal response curve of the liquid crystal display panel. The method of claim 1,
And a time point at which the data signal applied to the liquid crystal display panel is applied and a time point at which the lamp is turned on in the first section in response to the data signal belong to different frames. A liquid crystal display panel;
A plurality of backlight lamps arranged in a row below the liquid crystal display panel; And
And a lamp driver driving the plurality of lamps.
The lamp driving unit,
The unit frame section may include a first section for turning on lamps disposed in a central area among the plurality of lamps, and a second section for turning on lamps disposed in the remaining area other than the central area among the plurality of lamps. Drive the plurality of lamps. The method of claim 7, wherein
The unit frame section,
And a third section in which all of the plurality of lamps are turned on between the first section and the second section. The method of claim 7, wherein
The unit frame section,
And a fourth section in which all of the plurality of lamps are turned off after the second section. The method of claim 7, wherein
The lamp driving unit,
And a first section and a second section in response to a liquid crystal response curve of the liquid crystal display panel. The method of claim 7, wherein
And a time point at which the data signal applied to the liquid crystal display panel is applied and a time point at which the lamp is turned on in the first section corresponding to the data signal belong to different frames.

Images