KR101782006B1 - polarizing glasses for watching 3 dimensional stereography image displayed and 3 dimensional stereography image display system having the same - Google Patents

Abstract

The present invention relates to a liquid crystal display device, A first polarizing plate having a first transmission axis formed on one outer side surface of the liquid crystal display device and a first transmission axis formed on the other outer side surface and perpendicular to the first transmission axis; And a phase pattern having a different optical axis corresponding to the odd-numbered pixel lines and the even-numbered pixel lines among a plurality of pixel regions provided in the display region, the patterned retarders being attached to the outer surface of the second polarizer plate. More; A left eye, a right eye lens, a frame for framing the left eye and right eye lens, and fixing means for fixing the respective lenses to the frame, and selectively transmitting or blocking light having different phases to each of the lenses through the pattern reliader, A polarizing film, and a 3D image viewing glass with a phase film attached thereto, wherein the 3D image viewing glasses are arranged such that the fixing means is rotatably mounted on the rotary shaft so as to change positions of the front and rear surfaces of the left and right lenses, And a 3D image visualization system and a 3D image visual glasses.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional stereoscopic image display system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a 3D image realization system, and more particularly, to a polarized eyeglass for 3D image viewing and a 3D image realization system having the same.

Generally, a liquid crystal display device is composed of two opposing 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. The liquid crystal molecules have a polarization property and an optical anisotropy. The polarization property means that when the liquid crystal molecules are placed in the electric field, the charges in the liquid crystal molecules collide with both sides of the liquid crystal molecules, and the molecular alignment direction changes according to the electric field. Refers to changing the path of the emitted light and the polarization state differently depending on the incident direction or 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.

The 3D images will be described in more detail. The left and right eyes viewing the LCD display different 2D images. When the two images are transmitted to the brain through the retina, the brain fuses them exactly to each other, The depth and the sense of reality of the image are reproduced. Such a phenomenon is usually referred to as stereography.

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

In the stereoscopic image display system using the special glasses, the polarizing glasses system using the vibration direction or the rotation direction of the polarized light, the time division spectacle system alternately presenting the right and left images while switching them, and the light of different brightness in the left / Which is the method of concentration difference.

In the non-eye-hardened stereoscopic image display system, a parallax barrier system in which an image can be separated and observed through a vertical grid-like aperture in front of each image corresponding to the left / right eye, A lenticular method using a lenticular plate in which a cylindrical lens is arranged in a stripe manner, and an integral photography method using a fly-eye lens plate.

Among them, a 3D image display device using polarizing glasses is the most widely used.

1 is a diagram illustrating a 3D image implementation system using conventional polarized glasses.

As shown in the figure, a 3D image realization system using conventional special glasses includes a liquid crystal display device 10 for displaying a large image, a lambda / 4 pattern drifter (not shown) attached to the outer surface of the liquid crystal display device 10 40 and a spectacle 45 that selectively transmits an image passing through the λ / 4 pattern drier 40 from the liquid crystal display device 10.

First, the liquid crystal display device 10 includes an array substrate 15, a color filter substrate 20, a liquid crystal layer (not shown) interposed between the two substrates 15 and 20, (Not shown), and a backlight unit (not shown) on the outer surface of the first polarizer 25 (not shown) attached to the respective outer surfaces of the first and second polarizers 25 and 30. At this time, the first and second polarizing plates 25 and 30 are configured such that their transmission axes cross each other at right angles.

On the other hand, the? / 4 pattern drifter 40 provided on the outer surface of the second polarizer 30 attached to the outer surface of the color filter substrate 20 has pixels Corresponding to the region P, the light emitted from the pixel region P through the second polarizing plate 30 is made to be a right circularly polarized light state and the right circularly polarized light corresponding to the pixel region P located on the even- The birefringent material that internally changes the phase is patterned so as to have different directions in alternation with each pixel region P line. The? / 4 pattern drifter 40 which makes the light to be left-handed circularly polarized light or right-handed circularly polarized light has a? / 4 phase difference.

The optical axis of the λ / 4 pattern drifter 40 causing the phase difference of λ / 4 to occur is +45 degrees with respect to the transmission axis of the second polarizer 30 provided in the liquid crystal display device 10, -45 degrees.

Therefore, according to the above-described conventional 3D image implementing system 1, after the liquid crystal display device 10 passes through the? / 4 pattern drifter 40, The right circularly polarized light is emitted from the region and the left circularly polarized light is emitted from the pixel region located at the even-numbered pixel lines. At this time, with respect to the pixel region P located on the odd-numbered pixel line in the liquid crystal display device 10, the left-eye image signal incident on the left eye of the user is divided into the pixel region P located on the even- A 3D image can be realized by applying a right-eye image signal input to the right eye.

On the other hand, the 3D image viewing glasses 45 constituting one set of the liquid crystal display device 10 including the lambda / 4 pattern drifter 40 having the above-described configuration are formed of a transparent glass material Polarized films 50a and 50b and a? / 4 phase film (not shown) are attached to the polarizing film 50a.

The left eye lens 45a corresponding to the left eye of the user when wearing the 3D image viewing glasses 45 is provided with a first lambda / 4 phase film (not shown) functioning to selectively convert the right circularly polarized light into linearly polarized light, And a first polarizing film 50a. The right eye lens 45b is provided with a second? / 4 phase film (not shown), which serves to selectively convert left-polarized light into linearly polarized light, (Not shown).

Therefore, the liquid crystal display device 10 which wears the 3D image glasses 45 having such a configuration and displays images having different circularly polarized light states applied with image data for left and right eye alternately for each line, The right eye image is incident through the left eye lens 45a and the right eye image through the right eye lens 45b so that the user can view the 3D image by combining these two images .

On the other hand, as shown in Fig. 2A (the arrangement of the liquid crystal display device at the time of forward driving), the liquid crystal display device 10 displaying an image suited to the left eye and right eye image data for each line as described above As shown in Fig. 2B (arrangement of the liquid crystal display device at the time of reverse driving), there is no problem when forward driving is performed. However, in the reverse driving (the display area is rotated 180 degrees with respect to the display area at the time of forward driving 4) pattern driver 40 is attached in accordance with the forward driving, so that it is impossible to view the 3D image.

Referring to FIG. 3 (a diagram showing a 3D image implementation system using conventional polarized glasses and illustrating reverse driving), a liquid crystal display with a? / 4 pattern drawer 40 In the case of performing reverse driving using the apparatus 10, the left and right eye images are alternately output on a line-by-line basis starting from the left eye image in the same manner as in the forward driving. However, / 4 pattern reliader 40 has a structure in which the phase is inverted, that is, the right circularly polarized light and the left circularly polarized light alternate at the time of forward driving, and the left circularly polarized light and the right circularly polarized light alternate at the reverse driving .

Therefore, in the reverse driving, light passing through the? / 4 pattern drifter 40 is reflected by the pixel regions P located in the odd-numbered pixel lines, The left circularly polarized state, and the light emitted from the pixel regions corresponding to the pixel regions P located on the even-numbered pixel lines becomes the right circularly polarized state.

Therefore, when viewing the liquid crystal display 10 reversely driven through the 3D image viewing glasses 45, the left eye image is recognized in the right eye, the right eye image in the left eye, and the user sees an abnormal image. 3D image is not implemented.

In order to solve this problem, it is necessary to separate the forward driving model and the reverse driving model so that the direction of attachment of the λ / 4 pattern drifter is different for each model, which causes problems such as an increase in management cost and a reduction in production cost efficiency.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a 3D image viewing glasses having one type of pattern reliator array, And a 3D image realizing system including the 3D eye image viewing eyeglass and the 3D image realizing system having the same.

According to an aspect of the present invention, there is provided a system for implementing a 3D image, the system including: a liquid crystal display; A first polarizing plate having a first transmission axis formed on one outer side surface of the liquid crystal display device and a first transmission axis formed on the other outer side surface and perpendicular to the first transmission axis; And a phase pattern having a different optical axis corresponding to the odd-numbered pixel lines and the even-numbered pixel lines among a plurality of pixel regions provided in the display region, the patterned retarders being attached to the outer surface of the second polarizer plate. More; A left eye, a right eye lens, a frame for framing the left eye and right eye lens, and fixing means for fixing the respective lenses to the frame, and selectively transmitting or blocking light having different phases to each of the lenses through the pattern reliader, A polarizing film, and a 3D image viewing glass with a phase film attached thereto, wherein the 3D image viewing glasses are arranged such that the fixing means is rotatably mounted on the rotary shaft so as to change positions of the front and rear surfaces of the left and right lenses, As shown in Fig.

In this case, the phase pattern is a lambda / 4 phase pattern in which the phase is changed by? / 4 so that the linearly polarized light is left circularly polarized or right circularly polarized, and the patterned retarder is a? / 4 patterned retarder, Is a? / 4 phase film that converts left-handed or right-handed polarized light into linearly polarized light.

The 3D image viewing glasses may include a spectacle leg connected to the frame and seated on a user's ear and a bridge connecting and supporting the left eye frame and the right eye frame, Each frame is provided with a rotating means for inserting the fixing means and independently rotating the lenses. In this case, it is preferable that the rotating means is a bearing or a rotating hinge, and the rotating means is provided with a rotating tick or a latching portion so that the respective lenses can be maintained in a state of being rotated 180 degrees and 360 degrees.

The fastening means may be provided with an insertion groove into which the edge of the lens is inserted and fastening means for passing through the insertion groove and the edge of each lens to fix the insertion groove and the lens Feature.

According to an embodiment of the present invention, there is provided a 3D image viewing glasses comprising: a left eye and a right eye lens; First and second frames which frame each of the left and right eye lenses; A bridge connecting and fixing the first and second frames; A spectacle leg connected to the first and second frames, respectively; Fixing means for fixing the respective lenses so as to face each other so as to form one rotation axis in each frame, at the side ends of the first and second frames which frame the left and right lenses; And rotating means provided at the ends of the first and second frames, respectively, for rotating the lens provided on the fixing means with the fixing means inserted therebetween, with the fixing means facing each other as a rotation axis.

At this time, a polarizing film and a phase film for selectively transmitting or blocking light are attached to the left and right eye lenses.

Preferably, the rotating means is a bearing or a rotating hinge, and the rotating means is provided with a rotating tick or an engaging portion, so that the respective lenses can be maintained in a state of being rotated 180 degrees and 360 degrees.

Further, the eyeglass leg is rotatable by a hinge provided on the first and second frames.

The 3D image viewing glasses according to the present invention are configured so that the front and back lenses can be reversed for the left eye lens and the right eye lens, respectively, so that when the liquid crystal display equipped with the pattern drifter performs forward driving, And the left eye and the right eye lens are rotated 180 degrees around the fixing means so that the rear surface of each lens faces the liquid crystal display device State, it is possible to view a normal 3D image at both the forward driving and the reverse driving of the liquid crystal display device.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a diagram of a 3D image implementation system using conventional polarizing glasses.
FIG. 2A and FIG. 2B are views showing the arrangement of a liquid crystal display device during forward drive and reverse drive in a conventional 3D image realization system, respectively.
FIG. 3 is a view showing a 3D image realization system using polarizing glasses according to the related art, and illustrating reverse driving. FIG.
4 illustrates a 3D image implementation system in accordance with an embodiment of the present invention.
5 is a view of a 3D image viewing glasses provided in a 3D image implementation system according to an embodiment of the present invention.
6 is an enlarged view of a portion where fixing means provided in the 3D image viewing glasses according to the embodiment of the present invention is disposed.

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

FIG. 4 is a diagram illustrating a system for implementing a 3D image according to an embodiment of the present invention. For convenience of explanation, the pattern driver is divided into left and right sides with reference to the center, 5 is a view of a 3D image viewing glasses provided in a 3D image realizing system according to an embodiment of the present invention, FIG. 6 is a view showing a part where fixing means provided in the 3D image viewing glasses according to the embodiment of the present invention is disposed As shown in FIG.

A 3D image implementing system 100 according to an embodiment of the present invention includes a liquid crystal display device 110 that displays an image having first and second polarizing plates 125 and 130 on both outer sides thereof, 4 pattern reliator 140 provided on the outer surface of the second polarizing plate 130 of the polarizing plate 110, polarizing films 150a and 150b arranged to have mutually perpendicular transmission axes for the left and right eyes, And a glasses 145 to which a four-phase film is attached.

First, the liquid crystal display device 110 includes an array substrate 115, a color filter substrate 120, a liquid crystal layer (not shown) interposed between the two substrates 115 and 120, (Not shown), and a backlight unit (not shown) on the outer surface of the first polarizer 125. The first and second polarizers 125 and 130 are attached to the outer surfaces of the first and second polarizers 120 and 120, respectively.

Gate and data lines 116 and 118 are formed on the array substrate 115 to define a plurality of pixel regions P intersecting with each other and connected to the two lines 116 and 118 to correspond to the pixel regions P A thin film transistor Tr is provided and a pixel electrode 119 is connected to the thin film transistor Tr.

The color filter substrate 120 is provided with a black matrix 121 corresponding to the boundary of each pixel region P and a color filter layer 122 consisting of red, green, and blue color filter patterns sequentially corresponding to the pixel regions P And a color filter layer 122, and a common electrode (not shown) is provided on the entire surface.

A common electrode (not shown) provided on the front surface of the color filter substrate 120 according to the mode of the liquid crystal display device 110 is electrically connected to the pixel electrodes 119 As shown in FIG.

On the other hand, the first and second polarizers 125 and 130 are characterized in that the transmission axes thereof are perpendicular to each other.

The λ / 4 pattern drifts (140) provided on the outer surface of the second polarizer plate (130) correspond to the pixel regions (P) located in the odd-numbered pixel lines in the lateral direction during the forward driving, Polarized light state from the first polarizing plate P to the right circularly polarized light state and corresponds to the left circularly polarized light state corresponding to the pixel region P located on the even-numbered pixel line, The light emitted from the pixel region P through the second polarizing plate 30 is converted into a left circularly polarized state corresponding to the pixel region P located on the odd-numbered pixel lines in the lateral direction, The birefringent material changing its phase internally so as to have the right circularly polarized light state corresponding to the pixel region P positioned thereon is alternately arranged in the direction of the pixel region P It is patterned.

At this time, in the lambda / 4 pattern drifter 140 in which the phase difference of lambda / 4 is generated, the optical axis of the lambda / 45 degrees and 45 degrees.

On the other hand, the 3D image viewing glasses 145 constituting one set of the liquid crystal display device 110 including the lambda / 4 pattern drifter 140 having the above-described configuration are formed of a transparent glass material, A frame 141 for framing the lenses 145a and 145b for the right eye and the lenses 145a and 145b and two frames 141a and 145b for engaging with the frame 141 and a hinge (not shown) And a bridge 143 connecting between the frame 141 and the eyeglass leg 142 and the frames for the left eye and the right eye lenses 145a and 145b, respectively.

The polarizing films 150a and 150b and the? / 4 retardation film (not shown) are attached to the respective lenses 145a and 145b. The lenses 145a and 145b are attached to the frame 141, So that the user can selectively rotate the lenses 145a and 145b in the forward and backward directions.

The left eye lens 145a and the right eye lens 145b are disposed parallel to the bridge 143 on the basis of the bridge 143 connecting the frames 141 that frame the two lenses 145a and 145b, And a fixing means 147 for fixing the lenses 145a and 145b to the frame 141 on the one axis.

The fixing means 147 is provided at its one end with an insertion groove 148 into which the edges of the lenses 145a and 145b can be inserted, and when the edge of each lens is inserted into the insertion groove, The lens 145a and the lens 145b are fixed to the frame 141 which is framed by the fastening means 149 which penetrates through the lens 147 and the lenses 145a and 145b .

The other end of the fixing means 147 having the insertion groove 148 is fixed to the inside end of the frame 141 so as to be rotatable. The fixing means 147 is rotatably fixed to the frame 141 by various methods.

For example, a small bearing is provided in the frame 141 and the other end of the fixing means 147 is inserted into the bearing (not shown), or a rotary hinge (not shown) of the frame 141 is mounted The other end of the fixing means 147 is inserted into the rotation hinge (not shown), so that the fixing means 147 can be rotated. At this time, the fixing means 147 is rotated 180 degrees and 360 degrees by internal adjustment of a bearing (not shown) or a rotating hinge (not shown) provided in the frame 141, Or a state in which it is rotated by 180 degrees and 360 degrees by a latching portion (not shown).

On the other hand, both side ends of the left and right lenses 145a and 145b are fastened to the insertion grooves 148 of the fixing means 147 by the constitutional characteristic, and the lenses 145a and 145b are surrounded The fixing means 147 is fastened such that the other end thereof is inserted into the frame 141 so as to be positioned on the same axis in the frame 141 so that each of the left and right lenses 145a and 145b has the same And is rotatable with the fixing means 147 as a rotation axis.

The left eye lens 145a of the 3D image viewing glasses 145 having such a configuration is provided with a first? / 4 phase film (not shown) functioning to selectively convert circularly polarized light into linearly polarized light, (Not shown) and a second polarizing film 150b which serve to selectively convert circularly polarized light into linearly polarized light are also attached to the right eye lens 145b, ) Is attached.

Therefore, when the user wears the 3D image viewing glasses 145 having such a configuration and displays images with different circularly polarized light states applied to the left and right eye image data alternately for each line, the liquid crystal display device 110 , The left eye image is input through the left eye lens 145a and the right eye image is input via the right eye lens 145b. Therefore, by combining these two images, the user can view the 3D image So that it can be watched.

At this time, in the 3D image viewing glasses 145 having the above-described configuration, when the left and right lenses 145a and 145b respectively fix the fixing means 147 to the rotation axis and the user wears the 3D image viewing glasses And is characterized in that it can rotate back and forth so that the front and back surfaces of the respective lenses 145a and 145b change.

Therefore, when the liquid crystal display device 110 performs the forward driving, the 3D image viewing glasses 145 are worn while the left and right lenses 145a and 145b are not rotated, and then the liquid crystal display device 110), the left eye image passes through the lambda / 4 pattern drifter 140 from the pixel region P of the odd-numbered pixel line, and becomes a right circularly polarized state. This right circularly polarized light is transmitted through the left eye lens 145a and linearly polarized so that the left eye image is normally incident on the left eye and the right eye image is left-polarized from the pixel region P of the even-numbered pixel line through the? / 4 pattern derrator 140 And the left-handed circularly polarized light is incident on the right eye lens 145b and is linearly polarized. Accordingly, the right-eye image is normally incident on the right eye, so that a normal 3D image can be viewed.

When the liquid crystal display device 110 performs the reverse driving, the left and right lenses 145a and 145b are rotated by 180 degrees so that the front and back surfaces of the lenses 145a and 145b are reversed, The user can watch a normal 3D image by watching the liquid crystal display 110 after wearing the glasses 145.

That is, the left and right lenses 145a and 145b are rotated with the fixing means 147 as a rotation axis so that the front and back surfaces of the left and right lenses 145a and 145b are changed, The left eye lens 145a rotated 180 degrees serves to make the left circularly polarized light linearly polarized, and the right eye lens 145b rotated 180 degrees rotates the right circularly polarized light straightly Polarized state.

Therefore, in this case, the left eye image passes through the lambda / 4 pattern drifter 140 from the pixel region P of the odd-numbered pixel line to become a left circularly polarized state, The left eye image is normally incident on the left eye due to the linear polarization of the left eye lens 145a and the right eye image is incident on the left eye pixel from the pixel region P of the even pixel line by the λ / 4 pattern derrator 140 And the right-eye polarized light is incident on the right eye lens 145b rotated by 180 degrees and is linearly polarized. Accordingly, the right-eye image is normally incident on the right eye, so that the normal 3D image can be viewed.

Meanwhile, the 3D image viewing glasses 145 according to the embodiment of the present invention show that the fixing shaft of the fixing means 147 is arranged to coincide with the bridge 143, but as one modification, one lens 145a, 145b are arranged so as to coincide within one frame 141, these two fixing means 147 can be arranged in one frame in one frame The position of the fixing means 147 can be variously modified.

For example, the fixing means 147 may be positioned at vertexes located at diagonal angles of the rectangular shaped frame 141, or the fixing means 147 may be provided in each frame 141 in a direction perpendicular to the bridge 143 ) May be disposed.

The present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

141: Frame 142: Legs of glasses
143: Bridge 145: 3D viewing glasses
145a: Left eye lens 145b: Right eye lens
147: fixing means 150a: first polarizing film
150b: second polarizing film

Claims (12)

A liquid crystal display device including a display area;
A second polarizer having a first transmission axis formed on one outer side surface of the liquid crystal display device and having a second transmission axis perpendicular to the first transmission axis on the other outer side;
A pattern reliader attached to the outer surface of the second polarizer and having a phase pattern having different optical axes corresponding to odd-numbered pixel lines and even-numbered pixel lines among a plurality of pixel regions provided in the display region;
A left and right eye lens and a left and right eye frame for respectively framing the left eye and right eye lenses, and fixing means inserted in each of the left eye and right eye frames to fix the respective lenses, And a polarizing film and a phase film for selectively transmitting or blocking light of different phases,
The 3D image viewing glasses may be rotated with the fixing means as a rotation axis so as to change the positions of the front and rear surfaces of the left and right eye lenses each having the polarizing film attached thereto. And a bridge for connecting and supporting the left eye frame and the right eye frame,
Wherein each of the frames for the left eye and the right eye to which the left eye and the right eye lenses are fixed is provided with a rotation means for independently inserting the fixing means,
And fixing means for fixing the insertion groove and the lens by passing through the insertion groove and the edge of each lens, respectively,
3D image implementation system.
The method according to claim 1,
The phase pattern is a lambda / 4 phase pattern that changes the phase by? / 4 and makes left-handed or right-handed circularly polarized light,
Wherein the patterned retarder is a? / 4 patterned retarder,
Wherein the phase film is a? / 4 phase film that converts left-handed or right-handed polarized light into linearly polarized light.
delete delete The method according to claim 1,
Wherein the rotating means is a bearing or a rotating hinge. 6. The method of claim 5,
Wherein the rotation means is provided with a rotation tick or an engagement portion so that each lens can be kept rotated 180 degrees and 360 degrees.
delete A left eye and a right eye lens;
First and second frames which frame each of the left and right eye lenses;
A bridge connecting and fixing the first and second frames;
A spectacle leg connected to the first and second frames, respectively;
Fixing means inserted in a side end of each of the first and second frames to frame the left and right eye lenses and fixing the respective lenses facing each other so as to form one rotation axis in each frame;
Rotating means provided at the ends of the first and second frames, respectively, for rotating the lens provided on the fixing means with the fixing means inserted therebetween, with the fixing means facing each other as a rotation axis;
Wherein the fastening means includes fastening means for fastening the insertion grooves and the respective lenses through the insertion grooves and the edges of the respective lenses,
/ RTI >
The glasses for viewing 3D images with a polarizing film and a phase film attached thereto for selectively transmitting or blocking light to the left and right eye lenses.
delete 9. The method of claim 8,
Wherein the rotating means is a bearing or a rotating hinge.
11. The method of claim 10,
Wherein the rotating means is provided with a rotation tick or an engagement portion so that the lenses can be continuously rotated 180 degrees and 360 degrees.
9. The method of claim 8,
Wherein the spectacle leg is rotatable by a hinge provided on the first and second frames.

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