KR20130035230A - 3 dimensional stereography image display device - Google Patents

Abstract

PURPOSE: A stereoscopic image display device is provided to minimize a Moire phenomenon when overlapped with a patterned retarder by making the black matrices of a liquid crystal panel to have different widths from each other within a display area and thus lowering regularity and increasing the repetition cycle. CONSTITUTION: A liquid crystal panel(110) includes an array substrate(115), a color filter substrate(120), a liquid crystal layer interposed between these two substrates, a first and a second polarizing plate(125,130) attached on the outside of each substrate, and a BLU(Back Light Unit) arranged in the outside of the first polarizing plate. A retarder(140) is formed by regularly placing a left-eye retarder pattern(141a) and a right-eye retarder pattern(141b). A bar shaped black stripe(143) having a fixed width is formed in order to prevent the mixing of an left-eye image and a right-eye image in a boundary line between the left-eye retarder pattern and a right-eye retarder pattern. A black matrix(121) is included in a color filter substrate(120) and includes an interrupter(121a) screening an area between pixel areas(P); and an opening part(121b) exposing the pixel areas. The interrupter is formed to cover a common protrusion part(113) in case the pixel area has the common protrusion part of a second common pattern(117b). [Reference numerals] (AA,CC,EE) Left-eye image; (BB,DD,FF) Right-eye image;

Description

[0001] The present invention relates to a stereoscopic image display device,

The present invention relates to a display device, and more particularly to a 3D image display device that can improve the moiré phenomenon.

In general, a liquid crystal display device is composed of two opposite electrodes and a liquid crystal layer formed therebetween. The liquid crystal molecules of the liquid crystal layer are driven by an electric field generated by applying a voltage to the two electrodes. Liquid crystal molecules have polarization property and optical anisotropy. Polarization property means that when liquid crystal molecules are placed in an electric field, charges in the liquid crystal molecules are attracted to both sides of the liquid crystal molecules, and the direction of molecular arrangement changes according to the electric field. Refers to changing the path or polarization state of the emitted light differently according to the incident direction or the polarization state of the incident light due to the elongated structure of the liquid crystal molecules and the aforementioned molecular arrangement direction.

Accordingly, the liquid crystal layer exhibits a difference in transmittance due to the voltage applied to the two electrodes, and the 2D image can be displayed by varying the difference between the pixels.

Meanwhile, in recent years, a liquid crystal display device capable of displaying 3D images in response to the increase in demands of users for a liquid crystal display device capable of realizing a stereoscopic image and realizing a 3D image, that is, a 3D image can be realized.

Generally, stereoscopic images expressing 3D are made by the principle of stereoscopic vision through two eyes. By using the binocular disparity which appears because the time difference of the two eyes, that is, A liquid crystal display device capable of displaying stereoscopic images has been proposed.

In more detail, 3D image implementation, the left and right eyes looking at the liquid crystal display see different 2D images, and when these two images are delivered to the brain through the retina, the brain exactly fuses them with each other and the original 3D image. It is to reproduce the sense of depth and the real sense of this phenomenon is commonly called stereography (stereography).

Techniques for displaying 3D stereoscopic images in a device having a 2D image display such as a liquid crystal display device include a stereoscopic image display, a glasses-free stereoscopic image display, and a holographic display method using special glasses.

The three-dimensional image display method by the special glasses transmits the polarized glasses method using the vibration direction or the rotation direction of the polarized light, the time-divided glasses method alternately presenting while switching left and right images, and the light of different brightness in the left / right. It can be divided into concentration difference method.

In addition, the autostereoscopic 3D display method has a parallax barrier method allowing a separate image to be observed through a vertical grid-shaped aperture in front of each image corresponding to the left and right eyes, and a semi-cylindrical type. The lens may be divided into a lenticular method using a lenticular plate having a stripe arrangement of a cylindrical lens and an integral photography method using a lens plate shaped like a fly's eye.

Of these, 3D image display apparatuses using special glasses are most widely used.

1 is a view showing a 3D image display device using a conventional special glasses.

As shown in the drawing, the 3D image display apparatus 1 using the conventional special glasses has a liquid crystal panel 10 displaying a large image and a retarder 40 attached to an outer surface of the liquid crystal panel 10. And glasses 45 for selectively transmitting an image passing through the retarder 40 from the liquid crystal panel 10.

First, although not shown, the liquid crystal panel 10 includes an array substrate, a color filter substrate, a liquid crystal layer interposed between the two substrates, first and second polarizing plates attached to outer surfaces of each of the two substrates, and a first substrate. It includes a backlight unit disposed on the outer surface of the polarizing plate.

On the other hand, the retarder 40 provided on the outer surface of the second polarizing plate attached to the outer surface of the color filter substrate, the light emitted through the second polarizing plate from the pixel region P located in the odd pixel line in the horizontal direction. Is a left eye retarder pattern 41a for causing the left circularly polarized state, and a right eye retarder pattern 41b for causing light emitted from the pixel region P located in the even-numbered pixel lines to pass into the right circularly polarized state. The left eye retarder pattern 41a and the right eye retarder pattern 41b are made of a birefringent material for changing phase and are alternately arranged for each pixel region P line.

Therefore, in the above-described configuration of the conventional 3D image display device, the light emitted from the pixel region P of the odd-numbered pixel line of the liquid crystal panel 10 passes through the retarder 40 and then the light in the left circularly polarized state is The light emitted from the pixel region P of the even-numbered pixel line of the liquid crystal panel 10 becomes light in a right circularly polarized state after passing through the retarder 40.

In this case, the left eye image signal incident to the left eye of the user is applied to the pixel area of the odd-numbered pixel line of the liquid crystal panel 10, and the right eye of the user is applied to the pixel area P of the even-numbered pixel line of the liquid crystal panel 10. By applying the image signal for the right eye incident to the display device 1, the display device 1 capable of realizing a 3D image is realized.

By the way, in the conventional 3D image display device 1 having such a configuration, the moire phenomenon occurs due to the overlapping of the regular pattern between the liquid crystal display device 10 and the retarder 40 provided on one surface thereof. This will be described with reference to the drawings.

FIG. 2 is a diagram illustrating a black matrix formed on a liquid crystal panel of a conventional 3D image display device, and FIG. 3 is a view showing a color filter substrate and a retarder of a liquid crystal panel of a conventional 3D image display device. It will be described with reference to.

2 and 3, in the conventional 3D video display device 1, the liquid crystal panel 10 includes a blocking portion 21a that covers an area between the pixel areas P, and a pixel area ( The black matrix 21 including the opening 21b exposing P) is formed.

The black matrix 21 is formed to have a large enough blocking portion 21a to completely cover components such as gate wiring, data wiring, and thin film transistor of the array substrate even when misalignment occurs. Openings 21b having a rectangular shape having the same size with respect to the area P are arranged in a matrix so that the adjacent openings 21b in the vertical pixel line direction (the longitudinal direction of the data wiring of the array substrate of the liquid crystal panel 10) are arranged. Are spaced apart by the first length d1, and adjacent openings 21b in the horizontal pixel line direction (the longitudinal direction of the gate wiring of the array substrate of the liquid crystal panel 10) are spaced apart by the second length d2.

That is, the blocking part 21a of the black matrix 21 has a width of the first and second lengths d1 and d2 in the vertical pixel line direction and the horizontal pixel line direction, respectively. The unit pattern having the same size and shape corresponding to the pixel area P may be seen to be repeated horizontally and vertically with one pixel area P as a period.

Meanwhile, the left eye retarder pattern 41a and the right eye retarder pattern 41b are alternately formed in the retarder 40 so as to make different polarization states, and the left eye retarder pattern 41a and the right eye retarder are alternately formed. In order to prevent the left eye image and the right eye image from being mixed, a bar-shaped black stripe 43 having a predetermined width is formed at the boundary between the patterns 41b.

The black stripe 43 may be regarded as a unit pattern having the same size and shape is repeated up and down with one horizontal pixel line.

However, the black matrix 21 and the black stripe 43 which are periodic patterns may overlap each other to generate a moiré phenomenon.

The moiré phenomenon means that two periodic patterns overlap and a larger pattern than the original pattern appears. As the liquid crystal panel 10 and the retarder 40 overlap each other, a periodic pattern of the black matrix 21 is formed. The moiré phenomenon occurs due to the periodic patterns of the black stripe 43 and the black stripe 43 interfering with each other, which causes deterioration of the display quality of the 3D image display device 1.

In addition, there is a problem that the aperture ratio of the liquid crystal panel 10 is lowered by the black matrix 21 including the blocking portion 21a having a relatively large area.

Accordingly, an object of the present invention is to provide a 3D image display device having excellent display quality by reducing moiré phenomena.

In order to achieve the above object, the present invention provides a liquid crystal panel comprising a plurality of pixel regions and a black matrix exposing the plurality of pixel regions; A retarder is formed on one outer surface of the liquid crystal panel, and the black matrix provides a 3D image display device having at least one blocking protrusion protruding to correspond to a part of the plurality of pixel areas.

The black matrix may include a blocking part covering an area between the plurality of pixel areas and an opening exposing the plurality of pixel areas, and the blocking part may include the plurality of pixels by the at least one blocking protrusion part. It may have different shapes from each other in the region.

The plurality of pixel regions may include first to third pixel regions, and the at least one blocking protrusion may be connected to the blocking portion of the upper right portion of the third pixel region.

The plurality of pixel regions may include first and second pixel regions, and the at least one blocking protrusion may block the blocking portion of the upper left portion of the first pixel region and the lower right portion of the second pixel region. Can be connected to the unit.

The plurality of pixel regions may include first and second pixel regions, and the at least one blocking protrusion may include the blocking portion at the upper left portion of the first pixel region and the lower right portion of the second pixel region. The first blocking protrusion may be connected to the blocking unit, and the second blocking protrusion may be connected to the blocking unit of the upper right portion of the second pixel area.

The plurality of pixel regions may include first to sixth pixel regions, and the at least one blocking protrusion may include the blocking portion at the upper right portion of the first pixel region and the lower left portion of the second pixel region. The blocking portion of the lower right portion of the third pixel region, the blocking portion of the upper left portion of the fourth pixel region, the blocking portion of the lower right portion of the fifth pixel region, and the blocking portion of the upper left portion of the sixth pixel region. Can be connected to the unit.

The liquid crystal panel may further include a gate line and a data line crossing each other to define the plurality of pixel regions, a common line parallel to the gate line, a thin film transistor connected to the gate line and the data line, An array substrate including a pixel electrode connected to the thin film transistor; A color filter substrate facing the array substrate, the color filter substrate comprising a color filter layer and the black matrix; And a liquid crystal layer formed between the array substrate and the color filter substrate, wherein the black matrix may cover the gate wiring, the data wiring, the common wiring, and the thin film transistor.

The common wiring includes a first common pattern parallel to the gate wiring and a second common pattern branching from the first common pattern and parallel to the data wiring, and protruding at one end of the second common pattern. The common protrusion may be formed, and the at least one blocking protrusion may cover the common protrusion.

In addition, the common wiring may be formed in a zigzag form in a region between the plurality of pixel regions, and the at least one blocking protrusion may cover the thin film transistor.

The retarder may be formed between a left eye retarder pattern and a right eye retarder pattern corresponding to odd and even pixel lines of the liquid crystal panel, and the left eye retarder pattern and the right eye retarder pattern. It may include a black stripe.

In the 3D image display device according to the present invention, the black matrix of the liquid crystal panel is selectively configured to have different widths in the display area to reduce regularity and increase the repetition period, thereby preventing moiré phenomenon when overlapping the patterned retarder. Minimize the effect to provide excellent 3D display quality.

In addition, the black matrix of the liquid crystal panel is formed to have different widths for each position according to the shape of the components provided in the array substrate in front of the display area, thereby providing a black matrix with a black matrix having a predetermined width. By reducing the width of, there is an effect of improving the aperture ratio.

1 is a view showing a 3D image display device using a conventional special glasses.
2 is a diagram illustrating a black matrix formed on a liquid crystal panel of a conventional 3D image display device.
3 is a view showing a color filter substrate and a retarder of a liquid crystal panel of a conventional 3D image display device.
4 is a diagram illustrating a 3D image display device according to a first embodiment of the present invention.
5 is a view showing a liquid crystal panel of the 3D image display device according to the first embodiment of the present invention.
6 is a black matrix of a liquid crystal panel of a 3D image display device according to a first embodiment of the present invention.
7 illustrates a liquid crystal panel of a 3D image display device according to a second embodiment of the present invention.
8 is a black matrix of a liquid crystal panel of a 3D image display device according to a second embodiment of the present invention.
9 illustrates a black matrix of a liquid crystal panel of a 3D image display device according to a third embodiment of the present invention.
10 is a view showing a liquid crystal panel of a 3D image display device according to a fourth embodiment of the present invention.
FIG. 11 illustrates a black matrix of a liquid crystal panel of a 3D image display device according to a fourth embodiment of the present invention. FIG.

Hereinafter, the configuration of a 3D image implementation system according to the present invention will be described in detail with reference to the drawings.

4 is a diagram illustrating a 3D image display device according to a first embodiment of the present invention, FIG. 5 is a diagram illustrating a liquid crystal panel of a 3D image display device according to a first embodiment of the present invention, and FIG. Black matrix of the liquid crystal panel of the 3D image display device according to the first embodiment of the present invention.

4 to 6, the 3D image display apparatus 100 according to the first embodiment of the present invention includes first and second polarizing plates 125 and 130 on both outer surfaces thereof to display an image. A liquid crystal panel 110 and a retarder 140 provided on an outer surface of the second polarizing plate 130 of the liquid crystal panel 110. In addition, the liquid crystal panel 110 selectively transmits left circularly polarized light and right circularly polarized light. And glasses 145 composed of left and right eye polarizing films 145a and 145b.

 The liquid crystal panel 110 includes an array substrate 115, a color filter substrate 120, a liquid crystal layer interposed between these two substrates 115 and 120, and two substrates 115 and 120, respectively. First and second polarizing plates 125 and 130 attached to an outer surface of the first polarizing plate 125, and a backlight unit (not shown) disposed on an outer surface of the first polarizing plate 125.

The first and second polarizers 125 and 130 may be configured such that their transmission axes perpendicularly cross each other.

Gate and data lines 116 and 118 are formed in the array substrate 115 to cross each other and define a plurality of pixel regions P. In each pixel region P, gate and data lines 116 and 118 are formed. A thin film transistor Tr is formed and includes a gate electrode 154, a gate insulating layer (not shown), a semiconductor layer 163, and source and drain electrodes 173 and 176 spaced apart from each other, and a thin film transistor Tr. The pixel electrode 119 is formed to be connected to the drain electrode 176.

In each pixel area P, a common wiring 117 parallel to the gate wiring 116 may be further formed.

In this case, the common wiring 117 branches from the first common pattern 117a and the first common pattern 117a formed in parallel with the gate wiring 116, and the data wiring 118 in each pixel region P. It may be made of a second common pattern 117b disposed in parallel to overlap both ends of the.

The common wiring 117 overlaps the pixel electrode 119 to form a storage capacitor StgC.

The gate wiring 116 and the common wiring 117 may have a straight line shape, but the gate electrode 154 connected to the gate wiring 116 may be formed to protrude from an edge of the pixel region P to form a U-shape. In the case of forming the thin film transistor Tr having a channel portion (or a U-shape rotated 90 degrees), the gate wiring 116 has a linear shape in which a portion protruding toward each pixel region P is added. May be achieved.

In this case, since the common wiring 117 arranged in parallel with the gate wiring 116 must maintain a constant spacing even from the protruding portion of the gate wiring 116, the common wiring 117 is also inside the pixel region P. FIG. It is formed into a shape having a protruding portion.

For example, the gate line 116 and the common line 117 may be formed to have a portion protruding from the lower left corner of each of the first to third pixel areas P1, P2, and P3.

In addition, the second common pattern 117b of the common wiring 117 may be formed to have a different shape selectively in each pixel area P. FIG.

For example, the second common pattern 117b formed in the third pixel region P3 is different from the second common pattern 117b formed in the first and second pixel regions P1 and P2. It may be formed to have a common protrusion 113 protruding to (P).

On the other hand, the color filter substrate 120 provided to face the array substrate 115 having such a configuration is sequentially arranged in the black matrix 121 corresponding to the boundary of each pixel region P and the pixel region P in sequence. And a common electrode (not shown) formed on the entire surface of the color filter layer 122 formed of a corresponding red, green, and blue color filter pattern.

In this case, according to the method of the liquid crystal panel 110, the common electrode may be alternately formed with the pixel electrode 119 in each pixel region P of the array substrate 115 instead of the color filter substrate 120.

The black matrix 121 of the color filter substrate 120 includes a blocking portion 121a covering an area between the pixel areas P and an opening 121b exposing the pixel areas P.

Here, the blocking portion 121a of the black matrix 121 has a boundary between components of the array substrate 115 such as the gate wiring 116, the data wiring 118, the common wiring 117, and the thin film transistor Tr. It is formed so as to cover the corresponding component, in particular, in the case of the pixel region P having the common protrusion 113 of the second common pattern 117b is formed to cover the common protrusion 113.

For example, the blocking portion 121a of the black matrix 121 of the first and second pixel regions P1 and P2 in which the common protrusion 113 is not formed is formed at the upper left corner of the pixel region P. While not including 123, the blocking portion 121a of the black matrix 121 of the third pixel region P3 on which the common protrusion 113 is formed is formed at the upper left corner of the pixel region P. 123).

Therefore, the black matrix 121 of the first and second pixel regions P1 and P2 where the common protrusion 113 is not formed, and the black matrix 121 of the third pixel region P3 where the common protrusion 113 is formed. ) Are different in size and shape from each other.

That is, the blocking part 121a of the black matrix 121 has first inner third widths w1, w2, and w3 which are different from each other in the horizontal pixel line direction, and the black matrix 121 has three adjacent pixel areas. It can be seen that the unit pattern having the same size and shape is horizontally repeated in cycles of three pixel regions P corresponding to (P).

Meanwhile, the left eye retarder pattern 141a and the right eye retarder pattern 141b are alternately formed in the retarder 140 to make different polarization states, and the left eye retarder pattern 141a and the right eye retarder are alternately formed. In order to prevent the left eye image and the right eye image from being mixed, a bar-shaped black stripe 143 having a predetermined width is formed at the boundary between the patterns 141b.

The black stripe 143 may be regarded as a unit pattern having the same size and shape is repeated up and down by one horizontal pixel line.

In this case, the optical axes of the left eye retarder pattern and the right eye retarder pattern 141a and 141b of the retarder 140 are +45 degrees and -45 degrees with respect to the transmission axis of the second polarizing plate 130 of the liquid crystal panel 110, respectively. Can be achieved.

In the first embodiment, the patterned retarder in which the positions and polarization axes of the left eye retarder pattern and the right eye retarder pattern 141a and 141b are fixed has been described as an example. In another embodiment, the left eye retarder pattern and the right eye retarder pattern An active retarder can be applied that can change the position or polarization axis.

The active retarder includes two substrates each having first and second electrodes formed thereon and facing each other, and a liquid crystal layer between the first and second electrodes, wherein a voltage is applied to the first and second electrodes from the liquid crystal panel. The polarization state of the emitted light can be adjusted.

The active retarder may be driven in synchronization with the liquid crystal panel. For example, when the image of the first frame (left eye image) displayed by the liquid crystal panel passes through the active retarder, the first polarization state (left circular polarization) is performed. When the image of the second frame (right eye image) passes through the active retarder, it becomes a second polarization state (right polarization), and becomes light that transmits only the right eye lens. The image of the frame is synthesized so that the user recognizes the 3D image.

 On the other hand, the 3D image viewing glasses 145 forming a set with the retarder 140 and the liquid crystal panel 110, the left eye and right eye polarizing film (145a, 145b) and λ / 4 in a lens made of a transparent glass material It can form by attaching retardation film (not shown).

In the 3D image display apparatus 100 according to the first exemplary embodiment of the present invention, the user wears the glasses 145 and alternates the left and right eye image data by lines through the retarder 140. When viewing an image of the liquid crystal panel 110 that is applied and displays images having different circularly polarized states, the left eye image through the left eye polarizing film 145a and the right eye image through the right eye polarizing film 145b. Since it is incident, 3D images can be recognized by combining these two images.

In the conventional liquid crystal panel 10 of FIG. 1, the repetition period in the horizontal direction of the unit pattern of the black matrix 21 in FIG. 2 is one pixel region P. Since the repetition period in the horizontal direction of the unit pattern of the black matrix 121 in the liquid crystal panel 110 is three pixel regions P, the repetition period is increased and regularity is lowered than in the related art.

As a result, the moiré phenomenon caused by the interference of the black matrix 121 of the liquid crystal panel 110 and the black strap 143 of the retarder 140 is prevented and the display quality of the 3D image display apparatus 100 is improved.

Further, in the first and second pixel regions P1 and P2 where the common protrusion 113 is not formed, the blocking portion 121a of the black matrix 121 does not need to be formed to cover the common protrusion 113. In addition, the separation distance between the boundary of the blocking portion 121a of the black matrix 121 and the boundary of the gate wiring 116 may be minimized. As a result, the opening ratio of the liquid crystal panel 110 may be improved.

On the other hand, the shape of the black matrix with an increased repetition period may be variously modified, which will be described with reference to the drawings.

FIG. 7 illustrates a liquid crystal panel of a 3D image display device according to a second embodiment of the present invention, and FIG. 8 illustrates a black matrix of a liquid crystal panel of a 3D image display device according to a second embodiment of the present invention. In the drawings, descriptions of the same parts as in the first embodiment will be omitted.

As shown in FIG. 7 and FIG. 8, the array substrate of the liquid crystal panel 210 of the 3D image display device according to the second embodiment of the present invention includes a first and a first space formed in one direction in parallel with a first interval therebetween. The second gate lines 216a and 216b are formed in a pair, and the pair of first and second gate lines 216a and 216b are spaced apart by a second interval and repeatedly formed.

In addition, the same material and the same material as the first and second gate lines 216a and 216b corresponding to the separation area having the second gap between the pair of the first and second gate lines 216a and 216b. The common wiring 217 is formed to have a zigzag shape.

In addition, a plurality of data lines 218 are formed to cross the plurality of pairs of the first and second gate lines 216a and 216b.

In this case, an area surrounded by the pair of first and second gate lines 216a and 216b and the data line 218 that cross each other forms two pixel regions P adjacent to each other, and two adjacent to each other. The common wiring 217 is disposed at the central boundary of the pixel region P, so that each of the first and second gate wirings 216a and 216b and the data wiring 218 and the common wiring 217 is surrounded by a pair. The pixel region P is defined.

The common wiring 217 is formed in a zigzag pattern with respect to the same horizontal pixel line along the first and second gate wirings 216a and 216b, so that the common wiring 217 is connected.

For example, the common wiring 217 may be formed adjacent to the first gate wiring 216a below the first pixel region P1 and the second gate wiring 216b above the second pixel region P2, respectively. have.

The common wirings 217 of adjacent horizontal pixel lines are electrically connected to each other by a common connection pattern 297, and the common connection patterns 297 are each common wiring 217 exposed through the common contact hole 287. And a transparent conductive material forming the pixel electrode 219.

In this case, the common connection pattern 297 may be formed to cross the first and second gate lines 216a and 216b.

In addition, each pixel region P includes a thin film transistor including a gate electrode 254, a gate insulating film (not shown), a semiconductor layer 263, and source and drain electrodes 273 and 276 spaced apart from each other. Tr is formed and is in contact with the drain electrode 276 of the thin film transistor Tr, and a pixel electrode 219 is formed for each pixel region P. FIG.

In this case, the thin film transistor Tr has a U-shape which is rotated by 90 degrees, has a configuration that protrudes into each pixel region P, and varies its position in each pixel region P. FIG.

For example, the thin film transistor Tr may be formed at the upper left corner of the first pixel region P1 and formed at the lower right corner of the second pixel region P2.

Therefore, in the array substrate of the liquid crystal panel 210 according to the second embodiment having such a configuration, the shape of the gate wiring 216, the position at which the thin film transistor Tr is formed, the presence or absence of the common connection pattern 297, and the like are determined. Since the pixel regions P are different from each other, portions protruding into the pixel regions P have different shapes in the first and second pixel regions P1 and P2, and two adjacent pixel regions P are formed. Correspondingly, the unit pattern having the same size and shape may be seen to be repeated horizontally with two pixel regions P.

For example, in the array substrate of the liquid crystal panel 210 illustrated in FIG. 6, the thin film transistors Tr formed at the upper left and lower right portions of the pixel areas P are repeatedly arranged, but in the modified example, each pixel area P is disposed. Thin film transistors (Tr) formed on the upper right and lower left of the () may be repeatedly arranged, in another modification, the thin film transistors formed on the upper right, upper left, lower right and lower left of each pixel region (P) (Tr) may be repeatedly arranged.

As described above, due to the difference in the formation position in the pixel region P of the thin film transistor Tr, the shape of each pixel region P of the array substrate is two pixel regions P or four pixel regions P. FIG. ) Can be repeated horizontally.

On the other hand, the color filter substrate provided opposite to the array substrate having such a configuration includes the black matrix 221 corresponding to the boundary of each pixel region P, and the red, green, and sequential colors corresponding to each pixel region P. A color filter layer (not shown) formed of a blue color filter pattern and a common electrode (not shown) formed on the entire surface of the color filter layer are included.

In this case, according to the method of the liquid crystal panel 210, the common electrode may be formed alternately with the pixel electrode 219 in each pixel region P of the array substrate instead of the color filter substrate.

The black matrix 221 of the color filter substrate includes a blocking portion 221a covering an area between the pixel areas P and an opening 221b exposing the pixel area P.

Here, the blocking portion 221a of the black matrix 221 corresponds to the boundary of components of the array substrate such as the gate wiring 216, the data wiring 218, the common wiring 217, and the thin film transistor Tr. It is formed to cover the components, and in particular, to cover the gate wiring 216, the data wiring 218, the common wiring 217 and the protruding thin film transistor (Tr) formed on the array substrate.

For example, the blocking portion 221a of the black matrix 221 of the first pixel region P1 having the thin film transistor Tr formed at the upper left portion thereof has a blocking protrusion portion 223 at the upper left corner of the pixel region P. And a blocking portion 221a of the black matrix 221 of the second pixel region P2 having the thin film transistor Tr formed at the lower right portion thereof. 223).

Accordingly, the black matrix 221 of the first pixel region P1 in which the thin film transistor Tr is formed in the upper left portion and the black matrix of the second pixel region P2 in which the thin film transistor Tr is formed in the lower right portion thereof. (221) The size and shape are different from each other.

That is, the blocking part 221a of the black matrix 221 has first to third widths w1, w2, and w3 which are different from each other in the horizontal pixel line direction, and the black matrix 221 has two adjacent pixel areas. It can be seen that the unit pattern having the same size and shape is horizontally repeated in cycles of two pixel regions P corresponding to (P).

Although not shown, the left eye retarder pattern and the right eye retarder pattern are alternately formed in the retarder so as to make different polarization states, and the left eye retarder pattern and the right eye retarder pattern are formed on the boundary between the left eye retarder pattern and the right eye retarder pattern. In order to prevent the image and the right eye image from being mixed, a bar-shaped black stripe having a predetermined width is formed, respectively.

The black stripe may be regarded as a unit pattern having the same size and shape is repeated up and down by one horizontal pixel line.

In the conventional liquid crystal panel 10 of FIG. 1, the repetition period in the horizontal direction of the unit pattern of the black matrix 21 of FIG. 2 is one pixel region P, but the liquid crystal according to the second exemplary embodiment of the present invention. Since the repetition period in the horizontal direction of the unit pattern of the black matrix 221 in the panel 210 is two pixel regions P, the repetition period is increased and regularity is lowered than in the conventional art.

As a result, the moiré phenomenon caused by the interference of the black matrix 221 of the liquid crystal panel 210 and the black strap of the retarder is prevented and the display quality of the 3D image display device is improved.

In addition, since the blocking portion 221a of the black matrix 221 does not need to be formed to cover the thin film transistor Tr in the upper or lower portion of the pixel region P where the thin film transistor Tr is not formed. The separation distance between the boundary of the blocking portion 221a and the boundary of the gate wiring 216 of 221 can be minimized, and as a result, the opening ratio of the liquid crystal panel 210 is improved.

In the second embodiment, the common wiring 217 is arranged in a zigzag pattern for each pixel region P, and accordingly, the repetition period of the unit pattern of the pixel region P and the unit pattern of the black matrix 221 is conventional. In this embodiment, the zigzag shape of the common wiring 217 may be changed to change the repetition period of the unit pattern of the pixel region P and the unit pattern of the black matrix 221. have.

On the other hand, apart from the components formed on the array substrate may be formed independently of the irregular protrusion on the black matrix, which will be described with reference to the drawings.

FIG. 9 is a diagram illustrating a black matrix of a liquid crystal panel of a 3D image display device according to a third embodiment of the present invention, and descriptions of the same parts as those of the first and second embodiments will be omitted.

As shown in FIG. 9, in the black matrix 221 including the blocking portion 321a and the transmitting portion 321b, the blocking portion 321a of each pixel region P corresponds to a component of the array substrate. The first blocking protrusion 323 is included, and the blocking unit 321a of the selected specific pixel region P includes the second blocking protrusion 325 in addition to the first blocking protrusion 323.

For example, the first pixel area P1 having the first blocking protrusion 323 formed at the upper left corner and the second pixel area P2 having the first blocking protrusion 323 formed at the lower right corner thereof are horizontal pixels. In the structure repeated in the line direction, the second blocking protrusion 325 is further formed in the upper right portion of the specific second pixel region P, thereby forming the unit patterns of the pixel regions P1, P2, and P3 in the display region. It may increase the repetition period and reduce the regularity.

FIG. 10 is a view showing a liquid crystal panel of a 3D image display device according to a fourth embodiment of the present invention, and FIG. 11 is a black matrix of a liquid crystal panel of a 3D image display device according to a fourth embodiment of the present invention. In the drawings, descriptions of the same parts as those in the first to third embodiments are omitted.

As shown in FIGS. 10 and 11, the array substrates of the liquid crystal panel 410 of the 3D image display apparatus according to the fourth exemplary embodiment of the present invention may be spaced apart by a first interval and formed in one direction in parallel with each other. The second gate wires 416a and 416b are formed in a pair, and the pair of first and second gate wires 416a and 416b are repeatedly formed by being spaced apart by a second interval.

In addition, the same material and the same material as the first and second gate wirings 416a and 416b corresponding to the separation regions having a second gap between the pair of the first and second gate wirings 416a and 416b. The common wiring 417 is formed to have an irregular zigzag shape.

In addition, a plurality of data lines 418 are formed to intersect a plurality of pairs of the first and second gate lines 416a and 416b.

In this case, an area surrounded by the pair of first and second gate wires 416a and 416b and the data wire 418 that cross each other forms two pixel areas P adjacent to each other and two adjacent areas to each other. The common wiring 417 is disposed at the center boundary of the pixel region P, so that each of the first and second gate wirings 416a and 416b and the data wiring 418 and the common wiring 417 is surrounded by a shape. The pixel region P is defined.

The common wiring 417 is formed in an irregular zigzag pattern with respect to the same horizontal pixel line along the first and second gate wirings 416a and 416b, so that the common wiring 417 is connected.

For example, the common wiring 417 may include the first gate wiring 416a and the second, third and fifth pixel regions P2 and lower portions of the first, fourth and sixth pixel regions P1, P4, and P6. It may be formed adjacent to the second gate wiring 416b on the upper portions of P3 and P5, respectively.

The common lines 417 of adjacent horizontal pixel lines are electrically connected to each other by a common connection pattern 497, and the common connection patterns 497 are exposed through the common contact hole 487, respectively. And a transparent conductive material forming the pixel electrode 419.

In this case, the common connection pattern 497 may be formed to cross the first and second gate lines 416a and 416b.

In addition, a thin film transistor including a gate electrode 454, a gate insulating film (not shown), a semiconductor layer 463, and source and drain electrodes 473 and 476 spaced apart from each other in a stacked form in each pixel region P. Tr is formed and is in contact with the drain electrode 476 of the thin film transistor Tr, and a pixel electrode 419 is formed for each pixel region P. FIG.

In this case, the thin film transistor Tr has a U-shape which is rotated by 90 degrees, has a configuration that protrudes into each pixel region P, and varies its position in each pixel region P. FIG.

For example, the thin film transistor Tr is formed at the upper right corner in the first pixel region P1, is formed at the lower left corner in the second pixel region P2, and is formed at the right in the third pixel region P3. It is formed in the lower corner, formed in the upper left corner in the fourth pixel region (P4), formed in the lower right corner in the fifth pixel region (P5), and formed in the upper left corner in the sixth pixel region (P4). Can be.

Accordingly, in the array substrate of the liquid crystal panel 410 according to the fourth embodiment, the shape of the gate wiring 416, the formation position of the thin film transistor Tr, the presence or absence of the common connection pattern 497, and the like are determined. Since the pixel areas P are different from each other, portions protruding into the pixel areas P have different shapes in the first to sixth pixel areas P1 to P6, and six adjacent pixel areas P are adjacent to each other. It can be seen that the unit pattern having the same size and shape is repeated horizontally in cycles of six pixel regions P.

On the other hand, the color filter substrate provided opposite to the array substrate having such a configuration includes a black matrix 421 corresponding to the boundary of each pixel region P, and a red, green, and green color corresponding to each pixel region P sequentially. A color filter layer (not shown) formed of a blue color filter pattern and a common electrode (not shown) formed on the entire surface of the color filter layer are included.

In this case, according to the method of the liquid crystal panel 410, the common electrode may be formed alternately with the pixel electrode 419 in each pixel region P of the array substrate instead of the color filter substrate.

The black matrix 421 of the color filter substrate includes a blocking portion 421a covering an area between the pixel areas P and an opening 421b exposing the pixel area P.

Here, the blocking part 421a of the black matrix 421 corresponds to a boundary of components of the array substrate such as the gate wiring 416, the data wiring 418, the common wiring 417, and the thin film transistor Tr. It is formed to cover the components, and in particular, to cover the gate wiring 416, the data wiring 418, the common wiring 417 and the protruding thin film transistor (Tr) formed on the array substrate.

For example, the blocking portion 421a of the black matrix 421 of the first pixel region P1 having the thin film transistor Tr formed on the upper right portion thereof has a blocking protrusion 423 at the upper right corner of the pixel region P. FIG. ), And the blocking portion 421a of the black matrix 421 of the second pixel region P2 having the thin film transistor Tr formed at the lower left portion thereof has a blocking protrusion portion (421) at the lower left corner of the pixel region P. 423, and the blocking portion 421a of the black matrix 421 of the third pixel region P3 having the thin film transistor Tr formed at the lower left portion thereof has a blocking protrusion portion at the lower left corner of the pixel region P. And a blocking portion 421a of the black matrix 421 of the fourth pixel region P4 having the thin film transistor Tr formed at the upper left thereof, blocked at the upper left corner of the pixel region P. The blocking portion 421a of the black matrix 421 of the fifth pixel region P5 including the protrusion 423 and the thin film transistor Tr formed at the lower right portion thereof is formed of the pixel region P. The blocking portion 421a of the black matrix 421 of the sixth pixel region P6 including the blocking protrusion portion 423 at the lower edge and having the thin film transistor Tr formed on the upper left portion of the pixel region P Blocking protrusion 423 may be included in the upper left corner.

Therefore, the black matrix 221 of the first pixel region P1 having the thin film transistor Tr formed in the upper right portion, and the black matrix 221 of the second pixel region P2 having the thin film transistor Tr formed in the lower left portion. ), The black matrix 221 of the third pixel region P3 having the thin film transistor Tr formed in the lower left portion, and the black matrix 221 of the fourth pixel region P2 having the thin film transistor Tr formed in the upper left portion. ), The black matrix 221 of the fifth pixel region P5 having the thin film transistor Tr formed in the lower right portion, and the black matrix 221 of the sixth pixel region P6 having the thin film transistor Tr formed in the upper left portion. ) Are different in size and shape from each other.

That is, the blocking part 421a of the black matrix 421 has first and second widths w1 and w2 which are different from each other in the horizontal pixel line direction, and the black matrix 421 has six adjacent pixel areas P. FIG. It can be seen that the unit pattern having the same size and shape is repeated horizontally in cycles of six pixel regions P.

Although not shown, the left eye retarder pattern and the right eye retarder pattern are alternately formed in the retarder so as to make different polarization states, and the left eye retarder pattern and the right eye retarder pattern are formed on the boundary between the left eye retarder pattern and the right eye retarder pattern. In order to prevent the image and the right eye image from being mixed, a bar-shaped black stripe having a predetermined width is formed, respectively.

The black stripe may be regarded as a unit pattern having the same size and shape is repeated up and down by one horizontal pixel line.

In the conventional liquid crystal panel 10 of FIG. 1, the liquid crystal panel according to the fourth exemplary embodiment of the present invention is compared with the repetition period in the horizontal direction of the unit pattern of the black matrix 21 in FIG. 2. Since the repetition period in the horizontal direction of the unit pattern of the black matrix 421 in the panel 410 is six pixel regions P, the repetition period is increased and regularity is lowered than in the conventional art.

As a result, the moiré phenomenon caused by the interference of the black matrix 421 of the liquid crystal panel 410 and the black strap of the retarder is prevented and the display quality of the 3D image display device is improved.

In addition, since the blocking portion 421a of the black matrix 421 does not need to be formed to cover the thin film transistor Tr in the upper or lower portion of the pixel region P where the thin film transistor Tr is not formed. The separation distance between the boundary of the blocking portion 421a and the boundary of the gate wiring 416 of 421 can be minimized, and as a result, the opening ratio of the liquid crystal panel 410 is improved.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It can be understood that

100: 3D image display device 110: liquid crystal panel
115: array substrate 116: gate wiring
118: data wiring 119: pixel electrode
120: color filter substrate 121: black matrix
122: color filter layer 125: first polarizing plate
130: second polarizing plate 140: retarder
141a: Left eye retarder pattern 141b: Right eye retarder pattern
145: Glasses for watching 3D images 145a: Left polarized film
145b: right eye polarizing film

Claims (10)

A liquid crystal panel comprising a plurality of pixel regions and a black matrix exposing the plurality of pixel regions;
Retarder formed on one outer surface of the liquid crystal panel
Including,
And the black matrix has at least one blocking protrusion protruding to correspond to a part of the plurality of pixel areas.
The method of claim 1,
The black matrix may include a blocking unit that covers an area between the plurality of pixel areas, and an opening that exposes the plurality of pixel areas.
The blocking unit may have a different shape from each other in the plurality of pixel areas by the at least one blocking protrusion.
The method of claim 2,
The plurality of pixel areas includes first to third pixel areas,
And the at least one blocking protrusion is connected to the blocking part of the upper right portion of the third pixel area.
The method of claim 2,
The plurality of pixel areas includes first and second pixel areas,
And the at least one blocking protrusion is connected to the blocking portion of the upper left portion of the first pixel region and the blocking portion of the lower right portion of the second pixel region.
The method of claim 2,
The plurality of pixel areas includes first and second pixel areas,
The at least one blocking protrusion may include a first blocking protrusion connected to the blocking portion of the upper left portion of the first pixel region and the blocking portion of the lower right portion of the second pixel region, and the upper right portion of the second pixel region. 3D image display device including a second blocking protrusion connected to the blocking unit.
The method of claim 2,
The plurality of pixel areas includes first to sixth pixel areas,
The at least one blocking protrusion may include the blocking portion at the upper right portion of the first pixel region, the blocking portion at the lower left portion of the second pixel region, the blocking portion at the lower right portion of the third pixel region, and the fourth pixel region. A 3D image display device connected to the blocking portion of the upper left portion of the upper portion, the blocking portion of the lower right portion of the fifth pixel region and the blocking portion of the upper left portion of the sixth pixel region.
The method of claim 1,
In the liquid crystal panel,
A gate line and a data line crossing each other to define the plurality of pixel regions, a common line parallel to the gate line, a thin film transistor connected to the gate line and the data line, and a pixel electrode connected to the thin film transistor. An array substrate comprising a;
A color filter substrate facing the array substrate, the color filter substrate comprising a color filter layer and the black matrix;
Liquid crystal layer formed between the array substrate and the color filter substrate
Including,
And the black matrix covers the gate wiring, the data wiring, the common wiring, and the thin film transistor.
The method of claim 7, wherein
The common wiring includes a first common pattern parallel to the gate wiring, and a second common pattern branching from the first common pattern and parallel to the data wiring,
One end of the second common pattern is formed with a protruding common protrusion,
3. The 3D image display apparatus of which the at least one blocking protrusion covers the common protrusion.
The method of claim 7, wherein
The common wiring is formed in a zigzag form in a region between the plurality of pixel regions,
The at least one blocking projection unit covers the thin film transistor.
The method of claim 1,
The retarder may include a black stripe pattern formed between a left eye retarder pattern and a right eye retarder pattern corresponding to odd and even pixel lines of the liquid crystal panel, and the left eye retarder pattern and the right eye retarder pattern, respectively. 3D image display device comprising a.

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