KR102633407B1 - Barrier panel and stereoscopic display device comprising the barrier panel - Google Patents

Abstract

The present invention relates to a three-dimensional image display device that can prevent vertical line defects from occurring in the barrier panel of a three-dimensional image display device. The present invention relates to an active area that supplies different voltages for each line to implement black and white; and a barrier panel comprising a wiring area including a plurality of compensation wires added between a plurality of channel wires that transmit operation signals to the active area to prevent vertical line defects from occurring in the active area, and a barrier panel using the same. Display unit and three-dimensional image display device.

Description

Barrier panel and stereoscopic display device comprising the barrier panel}

The present invention relates to a stereoscopic image display device, and more specifically, to a stereoscopic image display device that can prevent vertical line defects from occurring in the barrier panel of the stereoscopic image display device.

In general, technology related to three-dimensional image display devices is used not only in the imaging field but also in a variety of fields, including the home appliance and communication industries, aerospace industry, and art industry. These stereoscopic image display devices mainly use glasses-type and non-glasses-type stereoscopic image generation techniques.

There are three types of glasses: colored glasses with wavelength selectivity, polarized glasses using the light-blocking effect of a polarizer, and time-sharing glasses that alternately present left and right images within the afterimage time of the eye. However, the glasses method has the inconvenience of having to wear glasses when watching 3D images and has the problem of causing eye fatigue when watching for a long time. Therefore, in order to solve the above problems, research and development on glasses-free stereoscopic image generation techniques are continuing.

The glasses-free stereoscopic image display device uses a structure in which multiple fine barrier electrodes are bonded onto an LCD panel. The viewing distance and viewing angle can be adjusted in a three-dimensional video display by driving only a fine barrier corresponding to the viewer's viewing distance.

When shifting the channel of the barrier panel to adjust the viewing angle, liquid crystal misdirection may occur starting from the column spacer (CS) and hole. As a result, a phenomenon in which local vertical line defects, so-called disclination, are recognized along the metal line from the column spacer (CS) area appears.

The purpose of the present invention is to provide a barrier panel that can prevent vertical line defects from being seen, a display unit, and a three-dimensional image display device including the same.

Another object of the present invention is to provide a three-dimensional image display device that can quickly restore the liquid crystal arrangement in an area where rain occurs.

Another object of the present invention is to provide a stereoscopic image display device for a vehicle that can provide a stereoscopic image in response to a car driver's eye movements.

To achieve these objectives, a barrier panel according to the present invention includes an active area that implements black and white by supplying different voltages for each line; a wiring area in which a plurality of channel wires are formed to transmit operation signals to the active area; and a plurality of compensation wires added between the plurality of channel wires to prevent vertical line defects from occurring in the active area.

A feature of the detailed configuration of the barrier panel according to the present invention is that a white voltage is applied to the compensation wiring.

Another feature of the detailed configuration of the barrier panel according to the present invention is that the compensation wire compensates between white voltage wires with a black voltage and compensates between black voltage wires with a white voltage.

Another feature of the detailed configuration of the barrier panel according to the present invention is that the active area includes a plurality of liquid crystal cells arranged in a matrix form in the first and second directions.

Another feature of the detailed configuration of the barrier panel according to the present invention is that the plurality of liquid crystal cells include transparent electrodes.

Another feature of the detailed configuration of the barrier panel according to the present invention is that the plurality of liquid crystal cells operate in TN mode (Twisted Nematic mode).

A stereoscopic image display device according to the present invention includes a barrier panel including a plurality of compensation wires; a barrier driver that drives each of the plurality of liquid crystal cells formed in the barrier panel to selectively become a transparent cell or an opaque cell; A display panel that displays video signals; a panel driver that drives the display panel according to an input video signal; An eye-tracking unit for acquiring user gaze location information; and a control unit that controls the display panel driver and controls the barrier driver to provide a compensation signal to a compensation wire included in the barrier panel based on gaze information provided from the eye-tracking unit. It is characterized by being accomplished by doing so.

A detailed feature of the stereoscopic image display device according to the present invention is that the control unit controls the barrier driver based on viewing distance information calculated using information provided from an eye-tracking unit.

A detailed feature of the stereoscopic image display device according to the present invention is to provide a stereoscopic image in response to the eye movement of the car driver.

The stereoscopic image display device according to the present invention has the following effects.

First, it is possible to prevent the recognition of defective vertical lines.

Second, the liquid crystal arrangement in the area where rain occurs can be quickly restored to its original state.

Figure 1 is a diagram schematically showing a stereoscopic image display device using a barrier method.
Figure 2a is a diagram schematically showing a barrier for 2 views in which an opaque area and a transparent area are formed in the form of stripes.
Figure 2b is a diagram schematically showing a barrier for 2 views in which opaque areas and transparent areas are formed in a checkerboard shape.
Figure 3 is a diagram schematically showing the configuration of a stereoscopic image display device according to an embodiment of the present invention.
Figure 4 is an exemplary diagram showing a 3D barrier panel 300 included in a stereoscopic image display device.
Figure 5 is an example diagram showing channel shifting according to the voltage applied to the channel wiring.
Figure 6 is an exemplary diagram showing an embodiment in which a plurality of compensation wires are arranged in a wire area.
FIG. 7 is an example diagram showing channel shifting due to voltage applied to the channel wiring and compensation wiring shown in FIG. 6.

Regarding the embodiments of the present invention disclosed in the text, specific structural and functional descriptions are merely illustrative for the purpose of explaining the embodiments of the present invention, and the embodiments of the present invention may be implemented in various forms and are not included in the text. It should not be construed as limited to the described embodiments.

Since the present invention can be subject to various changes and can have various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Terms such as first, second, etc. may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component without departing from the scope of the present invention.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when a component is referred to as being “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between. Other expressions that describe the relationship between components, such as "between" and "immediately between" or "neighboring" and "directly adjacent to" should be interpreted similarly.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprises” or “has” are intended to designate the presence of a disclosed feature, number, step, operation, component, part, or combination thereof, and are intended to indicate the presence of one or more other features or numbers, It should be understood that this does not exclude in advance the possibility of the presence or addition of steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as indicating meanings consistent with the meanings they have in the context of the related technology, and unless clearly defined in the present application, should not be interpreted in an idealized or excessively formal sense. No.

Meanwhile, if an embodiment can be implemented differently, functions or operations specified within a specific block may occur differently from the order specified in the flowchart. For example, two consecutive blocks may actually be performed substantially simultaneously, or the blocks may be performed in reverse depending on the functions or operations involved.

Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings.

The three-dimensional image display device according to the present invention includes a liquid crystal display device, a field emission display, a plasma display panel, an electroluminescence device (EL), and an electrophoresis display. It can be implemented as a flat panel display device such as an EPD, and is not limited to a specific display device.

In general, the factors that allow a person to perceive a three-dimensional effect include physiological factors and experiential factors. In 3D image display technology, binocular parallax, which is generally the biggest factor in recognizing a three-dimensional effect at close range, is used to create the three-dimensional effect of an object. I feel it. Methods that use binocular disparity include two major methods: a method in which glasses are worn (stereoscopy) and a glasses-free method (autostereoscopy) in which glasses are not worn.

The method of wearing glasses (stereoscopy) is the anaglyph method, which uses blue and red colored glasses for each eye, the polarization method, which uses polarized glasses with different polarization directions for each eye, and the time-segmented screen that is periodically repeated. There is a time-sharing method that uses glasses equipped with an electronic shutter synchronized to the cycle. However, the method of wearing glasses has problems such as the inconvenience of having to wear glasses and difficulty in observing objects other than images while wearing glasses. Therefore, research on ways to avoid wearing glasses has been actively conducted in recent years.

Representative examples of autostereoscopy without glasses include the lenticular method, which installs a lenticular lens plate with a cylindrical lens array arranged vertically in front of the image panel, and a barrier using a barrier. There is a parallax barrier method that creates a three-dimensional effect by separating the left and right eye images.

Figure 1 is a diagram schematically showing a three-dimensional image display device using a parallax barrier method. As shown in FIG. 1, the stereoscopic image display device 10 includes an image panel 13 and a barrier 11.

A barrier 11 formed by repeatedly arranging an opaque area 11-1 and a transparent area 11-2 is disposed on the front of the image panel 13. And, the image panel 13 is composed of a right eye corresponding pixel 13-1 seen by the right eye and a left eye corresponding pixel 13-2 seen by the left eye.

The observer sees the image displayed on the image panel 13 through the transparent area 11-2 of the barrier 11, and the observer's left eye 15 and right eye 14 view the same transparent area 11-2. Even if it works, each person sees a different area of the video panel 13. In other words, the viewer's left and right eyes see images displayed on pixels in adjacent areas through the transparent area 11-2, thereby providing a three-dimensional effect. This parallax barrier method has the great advantage of being able to convert 2D and 3D, so it is currently being applied to monitors, laptops, and mobile phones.

Figure 2a is a diagram schematically showing a barrier for 2 views in which an opaque area and a transparent area are formed in the form of stripes.

The barrier shown in Figure 2a is a two-view barrier in which the opaque and transparent areas are the same in size, and has the problem that the horizontal resolution is only about half of the vertical resolution, and vertical stripes appear in the displayed image, which puts a strain on the eyes. there is. In addition, recently, portraits that are long in the vertical direction and landscapes that are long in the horizontal direction are used to enable viewing of a wide screen when playing games, watching TV, videos, etc., or when a digital eye-tracking unit is built-in. Display devices that can be viewed by rotating the screen vertically are being developed so that the screen can be viewed in two landscape formats. However, a barrier such as that shown in Figure 2a has no choice but to be manufactured to fit either a portrait shape or a landscape shape, and if a barrier is manufactured to fit the portrait shape, there is a problem in that a three-dimensional image cannot be viewed on a landscape-shaped screen.

To solve this problem, a two-point barrier in the form of a checkerboard was developed.

Figure 2b is a diagram schematically showing a barrier for 2 views in which opaque areas and transparent areas are formed in a checkerboard shape. A barrier such as that shown in Figure 2b can be used when the display screen is in a portrait or landscape form. However, when the display screen is changed to a landscape format, depending on the positions of the left and right eye pixels of the display panel and the positions of the opaque and transparent areas of the barrier, there are cases where a three-dimensional image cannot be displayed in the landscape format. Additionally, this checkerboard-shaped barrier can only express stereoscopic images for one purpose.

Figure 3 is a diagram schematically showing the configuration of a stereoscopic image display device according to an embodiment of the present invention.

In order for the viewer to recognize the image output from the stereoscopic display device as a 3D stereoscopic image, the left and right images must be focused on the viewer's left and right eyes, respectively. However, in the glasses-free method that does not use separate stereoscopic glasses, it is possible to view the normal image. The available viewing area is limited. Therefore, the three-dimensional image display device of the present invention further includes an eye tracking unit 150 to determine the viewer's location and calculate the blocking area and transmission area of the barrier according to the results, so that the display device can provide the viewer with a fixed viewing area. The barrier is shifted to allow this.

Referring to FIG. 3, a stereoscopic image display device according to an embodiment of the present invention includes a display panel 200 that displays a left-eye image and a right-eye image separately, and a gate driver 150 that provides a gate signal to the display panel 200. and a data driver 130 that provides a data signal, and a barrier that is disposed in front of the display panel 200 and forms a barrier including a transmission area and a blocking area that transmit or block the left-eye image and right-eye image displayed therefrom. A panel 300, an eye-tracking unit 110 that tracks the viewer through front-side shooting and provides location information, and a barrier driver that controls the barrier panel 300 according to the location information. It includes 140 and a timing control unit 120 that receives various timing signals such as clock signals from an external system (not shown), provides control signals to each driver, and controls the barrier driver 140.

In the display panel 200, a plurality of gate wires (GL) and a plurality of data wires (DL) in a direction perpendicular to the gate wires are formed in a matrix form on a glass or plastic substrate, and pixels are defined at the intersection points. Each pixel displays the three primary colors R, G, and B, and works together with the barrier panel 300 to display the left-eye image and right-eye image on one screen to create a three-dimensional image.

As an example, the display panel 200 is a liquid crystal display device, and each pixel is equipped with a thin film transistor that functions as a switching element, and is conducted by the gate wire (GL) to transmit data applied through the data wire (DL). An image is displayed according to the electric field formed between two electrodes in response to the signal.

In addition, in the case of an organic electroluminescent device, each pixel is provided with at least one switching element and two thin film transistors that serve as driving elements, and the switching element is conducted through the gate wire (GL) and the switching element is connected through the data wire (DL). In response to the applied data signal, the driving element causes current to flow to the organic light-emitting diode element, thereby displaying an image.

The gate driver 150 applies a gate signal to the gate wires GL arranged on the display panel 200 in response to the gate control signal GCS applied from the timing controller 120 to display the gate signals provided in the pixels on the same horizontal line. It plays a role in switching thin film transistors. Here, the above-described gate control signal (GCS) includes a gate start signal (Gate Start Pulse), gate shift clock (Gate Shift Clock), and gate output enable (Gate Output Enable).

The gate driver 150 sequentially applies a gate signal to the gate wire GL for one horizontal period (1H) from the top to the bottom or from the bottom to the top of the display panel 200, and uses a typical shift register (shift register). register) structure.

The data driver 130 converts aligned image data (RGB) input according to the data control signal (DCS) input from the timing controller 120 into an analog data signal using a reference voltage. The data signal Vdata is latched for one horizontal period (1H) and output to the display panel 200 simultaneously through all data lines DL in response to the gate driving signal Vg. Here, the above-mentioned data control signal (DCS) includes source start pulse (SSP), source shift clock (SSC), source output enable (SOE), and polarity inversion signal (Polarity). , POL), etc.

Accordingly, the data signal of the analog waveform supplied from the data driver 130 is simultaneously applied to all pixels on the same horizontal line in synchronization with the gate signal. The data driver 130 may be composed of a shift register, a latch, a decoder, a digital-analog converter (DAC), and an output buffer.

Since the display panel 200 is driven by signals provided from the data driver 130 and the gate driver 150, the data driver 130 and the gate driver 150 may be referred to as a “display panel driver.” .

The barrier panel 300 is a switchable barrier structure disposed in front of the display panel 200 and functions to selectively transmit or block the left-eye image and the right-eye image, and is formed with a predetermined electrode pattern. It may include two substrates to be bonded and a liquid crystal layer interposed between the two substrates. Here, the liquid crystal layer may be driven in a normally white mode in which the transmittance decreases as the potential difference between the common voltage and the driving voltage increases.

This barrier panel 300 forms a barrier with a plurality of channels by the electrode pattern. Among the electrode patterns of the two substrates, a common voltage is applied to one electrode pattern, and to the other electrode pattern through a barrier wire (BL). When a driving voltage to drive the liquid crystal layer is applied, it becomes a blocking area (channel off) due to a change in transmittance of the liquid crystal layer, and when no driving voltage is applied, it becomes a transmission area (channel on). Here, the other electrode pattern may be formed in a multi-layer structure with an insulating layer interposed therebetween.

Here, the channel of the barrier panel 300 must be controlled so that its blocking area (BA) and transmission area (OA) are shifted according to the viewer's position so that a normal three-dimensional image is continuously provided to the viewer. To this end, the present invention uses i.e. A location tracking means such as a tracking unit 110 is provided.

The eye tracking unit 110 tracks the viewer's current location and provides the results to the timing control unit 120, and may include a typical camera sensor that photographs the front of the stereoscopic image display device in real time. there is.

This eye tracking unit 110 may be installed inside or outside the display device to detect the viewer's location information (TS) and calculate the viewer's location based on the detected information. Using the location information (TS) provided from the eye tracking unit 110, the timing control unit 120 determines the distance away from the regular viewing area where the three-dimensional image can be properly recognized by the current viewer, and shifts the barrier accordingly. Control values for the blocking area and transmission area of each channel are calculated.

The barrier driver 140 is electrically connected to the electrode patterns formed on the barrier panel 300 through the barrier wire (BL), and drives the barrier panel 300 in response to the barrier control signal (BCS) to operate each channel. It serves to control the area into a blocking area, a transmission area, and a semi-transmission area.

The timing control unit 120 arranges image data provided from an external system into a form that the data driver 130 can process, and operates the gate driver 150, data driver 130, and barrier driver 140 in response to the timing signal. ) forms and provides control signals.

In addition, the timing control unit 120 according to the present invention is connected to the eye tracking unit 110, receives location information (TS) about the viewer's location, and shifts the barrier of the barrier panel 300 in response to the viewer's location. It is set to provide regular coverage even when the location changes.

The timing control unit 120 can detect viewing position information only when the driving mode of the video display device is switched from 2D mode to 3D mode, but is not limited to this and detects viewing position information in predetermined period units even during 3D mode. can do.

The timing control unit 120 drives each pixel (P) of the display panel 200 based on a mode signal, a digital image signal, and a timing synchronization signal input from the outside to display a two-dimensional image according to the 2D mode or a 3D image according to the 3D mode. A three-dimensional image is displayed on the display panel 200.

In 2D mode, the timing control unit 120 aligns the digital image signal to suit the pixel arrangement structure of the display panel 200 based on the digital image signal and timing synchronization signal input from the outside, and generates and displays image data for each pixel. It is provided to the panel driver 140.

In 3D mode, the timing control unit 120 aligns the digital image signal to suit the stereoscopic image implementation method of the display panel 200 based on the digital image signal and timing synchronization signal input from the outside, and divides the left eye image data and the right eye image data into is generated and provided to the data driver 130 and the gate driver 150. Then, the control unit 120 divides the barrier panel 300 into M areas, and displays a signal on each pixel P based on the viewer's viewing location information provided by the eye-tracking unit 110. Addressing barrier data (ABD) for each area is generated to individually correct the positions of the formed light transmitting area (LTA) and light blocking area (LBA) for each M area and provided to the barrier driver 140. .

Figure 4 is an exemplary diagram showing a 3D barrier panel 300 included in a stereoscopic image display device. As shown, the 3D barrier panel 300 has an active area 310 that implements black and white by supplying different voltages for each line, and a plurality of channel wires that transmit operating signals to the active area 310. It includes a wiring area 320.

The active area 310 has a plurality of electrode lines, and can implement black and white colors according to the provided voltage to create a light transmitting area and a light blocking area. The active area 310 includes a plurality of liquid crystal cells arranged in a matrix form in the first and second directions, each liquid crystal cell including a liquid crystal layer between the first and second substrates, and the liquid crystal cells The layer changes the molecular arrangement of the liquid crystal according to the driving signal applied to the electrode line and the common signal applied to the common line, forming a light transmitting area (LTA) and a light blocking area (LBA) on each pixel (P), thereby forming an image image. Permeates or blocks. At this time, the first substrate and/or the second substrate includes a transparent electrode. The liquid crystal layer may be made of twisted nematic (TN) or super twisted nematic (STN) liquid crystal.

The barrier panel 300 may further include a polarizing film (not shown) on the surface exposed to the outside. The polarizing film serves to block light that is not completely blocked by the light blocking area (LBA) formed on the barrier panel 300. That is, the polarizing film allows only light that passes through the light transmission area (LTA) of the barrier panel 300 to be emitted to the outside.

In the wiring area 320, a plurality of channel wires 321 are disposed to individually drive the lines formed in the active area 310. Black and/or white are implemented by applying different voltages for each line to a plurality of electrode lines formed in the active area 310 through the channel wire 321.

In this way, when the viewer's gaze moves to the left or right during the process of displaying a 3D image, the channel is shifted. For example, as shown in FIG. 5, assuming that a wiring capable of controlling 12 channels is formed in the corresponding wiring area 320 to individually drive the lines formed in a predetermined active area 310, Currently, when displaying a 3D image, 6 of the 12 channels can display white voltage and the remaining 6 channels can display black voltage. At this time, the white voltage forms a light-transmitting area through lines formed in the active area, and the black voltage forms a light-blocking area through lines formed in the active area.

In this state, if the timing control unit 120 determines that the viewer's gaze detected by the eye tracking unit 110 has shifted to the left or right by “D1”, channel shifting is performed through the barrier panel 300. Channels 4 to 9, which set the light blocking area of the barrier panel by applying a black voltage, are shifted by one channel. That is, when one channel moves, a black voltage is provided to channels 5 to 10 so that the corresponding barrier area operates as a light blocking area, and a white voltage is provided to the remaining areas to operate as a light transmission area.

Meanwhile, if the timing control unit 120 determines that the viewer's gaze detected by the eye tracking unit 110 has moved to the left or right by "D2", channel shifting through the barrier panel 300 is performed in a different form. do. Of course, since the viewer's gaze may move from the position “D1” to “D2,” the channel may be moved one more time after performing the process of moving one channel. Channels 4 to 9, which set the light blocking area of the barrier panel by applying a black voltage, are shifted by two channels from the initial channel state. That is, when two channels move, a black voltage is provided to channels 6 to 11, so that the corresponding barrier area operates as a light blocking area, and a white voltage is provided to the remaining areas, so that they operate as a light transmission area.

However, during such channel shifting, liquid crystal misdirection phenomenon may occur starting from the column spacer and hole. As a result, a vertical line disclination, referred to as a “rainfall phenomenon,” may be visible to the viewer locally along the metal line disposed in the active area 310 of the barrier panel 300. The longer the defective vertical line, the slower the speed of return to its original state. That is, the liquid crystal is driven in the wiring area 320 for transmitting voltage within the active area, creating a line-shaped lattice defect area in the column spacer and hole area, and this area is the active area. As the area expands, vertical line defects occur.

In order to solve this problem, as shown in FIG. 6, a plurality of wires are disposed in the wiring area 320 to transmit operation signals to the active area 310 to prevent vertical line defects from occurring in the active area 310. A plurality of compensation wires 400 are added between the channel wires 321. Basically, a white voltage is applied to the compensation wiring 400.

As shown in FIG. 7, the compensation wire 400 compensates between white voltage wires with a black voltage and between black voltage wires with a white voltage. That is, in the basic state, when six channels from channel 4 to channel 9 among the 12 channels show black voltage and the remaining six channels show white voltage, a voltage of opposite polarity is provided to the compensation channel of each channel. For example, as shown in FIG. 7, when “white voltage” is applied to the first to third channels, “black voltage” is applied to the compensation channels (compensation 1 to compensation 3) of the first to third channels. approved. Meanwhile, a “white voltage” is applied to the compensation channels (compensation 4 to compensation 9) of the fourth to ninth channels to which the “black voltage” is applied.

If the viewer moves by “D1”, corresponding channel shifting is performed. That is, the channels to which black voltage was previously applied are changed from channels 4 to 9 to channels 5 to 10. According to this channel shifting, “white voltage” is applied to channel 4, where the existing “black voltage” was applied, but “black voltage” is applied to the compensation channel of channel 4. Additionally, a “black voltage” is applied to channel 10, where a “white voltage” was applied, by channel shifting, but a “white voltage” is applied to the compensation channel of channel 10.

In this way, when driving a barrier panel in a three-dimensional image display device, the vertical line disclination area can be reduced, and raining defects can be improved by quickly restoring the liquid crystal array to its original state.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art may make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can do it.

10: stereoscopic image display device 11: barrier panel
11-1: Opaque area 11-2: Transparent area
13: Video panel 13-1: Right eye corresponding pixel
13-2: Left eye corresponding pixel 14: Right eye
15: Left eye 110: Eye tracking unit
120: timing control unit 130: data driver
140: barrier driver 150: gate driver
200: display panel 300: barrier panel
310: active area 320: wiring area
321: Channel wiring 400: Compensation wiring

Claims (8)

Active area that implements black and white by supplying different voltages for each line;
a wiring area in which a plurality of channel wires are formed to transmit operation signals to the active area; and
A barrier panel including a plurality of compensation wires added between a plurality of channel wires to prevent vertical line defects from occurring in the active area. The barrier panel of claim 1, wherein the compensation wiring applies a white voltage. The barrier panel of claim 1, wherein the compensation wiring compensates between white voltage lines with a black voltage and between black voltage lines with a white voltage. The barrier panel of claim 1, wherein the active area includes a plurality of liquid crystal cells arranged in a matrix form in a first direction and a second direction. The barrier panel of claim 4, wherein the plurality of liquid crystal cells include transparent electrodes. The barrier panel of claim 4, wherein the plurality of liquid crystal cells operate in TN mode (Twisted Nematic mode). Barrier panel according to claim 1;
a barrier driver that drives each of the plurality of liquid crystal cells formed in the barrier panel to selectively become a transparent cell or an opaque cell;
A display panel that displays video signals;
a panel driver that drives the display panel according to an input video signal;
An eye-tracking unit for acquiring user gaze location information; and
A three-dimensional image display device comprising a control unit that controls the panel driver and controls the barrier driver to provide a compensation signal to a compensation wire included in the barrier panel based on gaze information provided from the eye tracking unit. The stereoscopic image display device of claim 7, wherein the control unit controls the barrier driver based on viewing distance information calculated using information provided from an eye-tracking unit.

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