KR20140049277A - Polarization glasses type stereoscopic image display and driving method thereof - Google Patents

Abstract

A polarization glasses type device for displaying a 3D image according to an embodiment of the present invention comprises a 3D formatter which separates left eye data for displaying a left eye image and right eye data for displaying a right eye image from image source data inputted from the outside and alternately aligns the left and right eye data line by line; a depth adjustment part for adjusting the depth of the 3D image by shifting the left eye data and the right eye data as much as an N number of pixels (N is a positive integer) in a horizontal direction opposite to each other from an original display location according to an input depth value; and an edge interpolation part which divides the depth adjusted 3D image into a shift uncompensated area, and a first shift compensated area and a second shift compensated area that are respectively located in the left side and the right side interposing the shift uncompensated area and which interpolates the left eye data and the right eye data in the first shift compensated area and the second shift compensated area.

Description

3D image display device of polarizing glasses type and its driving method {POLARIZATION GLASSES TYPE STEREOSCOPIC IMAGE DISPLAY AND DRIVING METHOD THEREOF}

The present invention relates to a three-dimensional (3D, hereinafter "3D") image display device of the polarizing glasses method that can implement the image and its driving method.

With the popularity of 3D movies, a stereoscopic image display device capable of viewing stereoscopic images in general homes has been developed and spread. Recently released stereoscopic image display device realizes a three-dimensional effect by using the binocular disparity (binocular disparity). When the left and right eyes are intentionally created to have a parallax and are viewed through both eyes 6 to 7 cm apart, the human brain feels a three-dimensional feeling while recognizing the depth and distance of the image. Such stereoscopic image display apparatuses can be roughly divided into polarized glasses and shutter glasses. Compared to shutter glasses, polarized glasses are light in weight, inexpensive, and have an excellent fit, and thus, the market for polarized glasses type stereoscopic display devices is gradually expanding.

The polarizing glasses method includes a patterned retarder attached to the display panel. In the polarizing glasses method, the left eye image and the right eye image are alternately displayed on the display panel in units of horizontal pixel lines, and the polarization characteristics incident on the polarizing glasses are switched through the patterned retarder. In the polarizing glasses method, a left eye image and a right eye image are spatially separated (that is, horizontally by horizontal pixel lines) through a polarizing filter (ie, a patterned retarder) attached to a display panel and polarizing glasses worn by a user.

It is very important to control the 3D image of a 3D image in a polarized glasses display device. If the 3D image of the 3D image is too low, the user may view a 3D image such as a 2D image. On the contrary, if the 3D image of the 3D image is too high, the user may feel fatigue when viewing the 3D image. The stereoscopic control on the 3D image is implemented through depth control. The method for adjusting the depth of the 3D image includes a method of adjusting the depth of the 3D image using spatial features of the 3D image, and a method of adjusting the depth of the 3D image using motion information of an object included in the 3D image. And a method of adjusting the depth of the 3D image by mixing them. In particular, in the polarization glasses method in which the left eye image and the right eye image are alternately displayed on the display panel by line by line, the left eye image and the right eye image are opposite to each other by a predetermined value from the original display position (left horizontal direction or right horizontal direction). You can adjust the depth by shifting to).

According to the depth control method of the conventional polarizing glasses method, the left eye data for displaying the left eye image and the right eye data for displaying the right eye image are constant in the left and right horizontal directions (or right and left horizontal directions) from the original display position, respectively. It is displayed shifted by the number of pixels. Therefore, in the stereoscopic image display apparatus of the conventional polarization glasses method, there is a problem that image data is not lost or displayed in the left and right edge regions of the display image by the number of shifted pixels.

Accordingly, an object of the present invention is to provide a polarized glasses type stereoscopic image display device and a driving method thereof to compensate for loss and non-display of image data which may occur while adjusting the depth.

In order to achieve the above object, the stereoscopic image display apparatus of the polarizing glasses method according to an embodiment of the present invention is separated from the image source data input from the outside by separating the left eye data for the left eye image display and the right eye data for the right eye image display A 3D formatter alternately aligning by-line; A depth adjusting unit configured to adjust the depth of the 3D image by shifting the left eye data and the right eye data by N (N is a positive integer) number of pixels in a horizontal direction opposite to each other according to an input depth value; And dividing the 3D image in which the depth is adjusted into a first shift correction region and a second shift correction region respectively positioned at left and right sides with a shift non-correction region and the shift non-correction region interposed therebetween. And an edge interpolation unit interpolating the left eye data and the right eye data in a second shift correction region.

According to an exemplary embodiment of the present invention, a method of driving a 3D image display device using polarized glasses according to an embodiment of the present invention separates left-eye data for displaying a left-eye image and right-eye data for displaying a right-eye image from image source data input from the outside and alternates the line-by-line. Sorting by; Adjusting the depth of the 3D image by shifting the left eye data and the right eye data by N (N is a positive integer) number of pixels in a horizontal direction opposite to each other according to an input depth value; And dividing the 3D image in which the depth is adjusted into a first shift correction region and a second shift correction region respectively positioned at left and right sides with a shift non-correction region and the shift non-correction region interposed therebetween. And the left eye data and the right eye data are interpolated in a second shift correction region.

The present invention compensates for loss and non-display of image data that may occur while adjusting depth in a polarized glasses type stereoscopic display device by interpolating at least one of data duplication and data averaging. The phenomenon that an edge deteriorates can be suppressed.

1 is a view showing a three-dimensional image display device of the polarizing glasses method according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a configuration of a 3D image processing circuit of FIG. 1.
3 is a view showing the operation of the 3D formatter of FIG.
4 and 5 are views showing the operation of the depth adjustment unit of FIG.
6 is a view for explaining the operation of the edge interpolator of FIG.
7 and 8 illustrate examples of an operation of an edge interpolator.
9A and 9B show other operational examples of the edge interpolator.
10A and 10B show still another operation example of the edge interpolator.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals throughout the specification denote substantially identical components. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The component names used in the following description are selected in consideration of easiness of specification, and therefore may be different from the parts names of actual products.

1 shows a stereoscopic image display device of a polarizing glasses method according to an embodiment of the present invention.

Referring to FIG. 1, the stereoscopic image display apparatus of the present invention includes a display element 10, a patterned retarder 20, a 3D image processing circuit 30, a timing controller 40, a panel driving circuit 50, and polarization. Glasses 60 are provided.

The display device 10 may include a liquid crystal display (LCD), a field emission display (FED), a plasma display panel (PDP), an inorganic electroluminescent device, A flat panel display device such as an electroluminescence device (EL) including an organic light emitting diode (OLED), and an electrophoresis (EPD) device. Hereinafter, the display element 10 will be described mainly with reference to a liquid crystal display element.

The liquid crystal display device 10 includes a display panel 11, an upper polarizer 11a, and a lower polarizer 11b.

The display panel 11 includes two glass substrates and a liquid crystal layer formed therebetween. The display panel 11 includes liquid crystal cells arranged in a matrix by a cross structure of data lines and gate lines. On the lower glass substrate of the display panel 11, a pixel array including data lines, gate lines, thin film transistors (hereinafter referred to as TFTs), pixel electrodes connected to TFTs, and storage capacitors is formed. do. Each of the liquid crystal cells is driven by an electric field between the pixel electrode and the common electrode. On the upper glass substrate of the display panel 11, a black matrix, a color filter, and a common electrode are formed. The common electrode is formed on the upper glass substrate in a vertical electric field driving method such as a TN (Twisted Nematic) mode and a VA (Vertical Alignment) mode, and a horizontal electric field such as IPS (In Plane Switching) mode and FFS (Fringe Field Switching) Is formed on the lower glass substrate together with the pixel electrode in the driving method. The upper polarizing film 11a is attached to the upper glass substrate of the display panel 11, and the lower polarizing film 11b is attached to the lower glass substrate. A column spacer for maintaining a cell gap of the liquid crystal cell may be formed between the glass substrates.

The display panel 11 may be implemented in any liquid crystal mode as well as the TN mode, VA mode, IPS mode, and FFS mode. The liquid crystal display element of the present invention can be implemented in any form of a transmissive display element, a transflective display element, a reflective display element, and the like. In the transmissive display element and the semi-transmissive display element, the backlight unit 12 is required. The backlight unit 12 may be implemented as a direct type backlight unit or an edge type backlight unit.

The patterned retarder 20 is attached to the upper polarizing film 11a of the display panel 11. [ First retarder patterns are formed in odd lines of the patterned retarder 20, and second retarder patterns are formed in even lines of the patterned retarder 20. The light absorption axis of the first retarder pattern and the light absorption axis of the second retarder pattern are perpendicular to each other. The first retarder pattern of the patterned retarder 20 transmits a first polarized light (eg, left circularly polarized light) of light incident from the odd horizontal pixel lines opposite the odd horizontal pixel lines of the pixel array. The second retarder pattern of the patterned retarder 20 transmits a second polarized light (eg, right circularly polarized light) of light incident from the even-numbered horizontal pixel line opposite to the even-numbered horizontal pixel line of the pixel array. The first retarder pattern of the patterned retarder 20 may be implemented as a polarization filter that transmits only left circularly polarized light, and the second retarder pattern of the patterned retarder 20 is implemented as a polarization filter that transmits only right circularly polarized light Can be.

The 3D image processing circuit 30 receives image source data SDATA from a host system (not shown), and separates left eye data for displaying a left eye image and right eye data for displaying a right eye image from the image source data SDATA. To alternately align line by line to generate input 3D image data. In order to adjust the depth of the input 3D image, the 3D image processing circuit 30 moves the left eye data and the right eye data from the original display position in a horizontal direction opposite to each other (ie, in the left horizontal direction or the right horizontal direction) according to the input depth value. This shifts by N (N is a positive integer) number of pixels. In addition, the 3D image processing circuit 30 shifts the 3D image having a depth adjusted non-correction area and the shift ratio to solve a problem in which image data is lost or not displayed in the left and right edge regions of the 3D image by the number of shifted pixels. The left eye modulation is divided into a first shift correction region and a second shift correction region respectively positioned on the left and right sides with the correction region interposed therebetween. Data L 'and right eye modulated data R' are generated. The 3D image processing circuit 30 supplies the left eye modulation data L 'and the right eye modulation data R' alternately arranged in a line by line form to the timing controller 40. The detailed configuration and operation of the 3D image processing circuit 30 will be described later with reference to FIGS. 2 to 10B.

The timing controller 40 receives timing signals such as a vertical sync signal Vsync, a horizontal sync signal Hsync, a data enable signal Data Enable, and a dot clock DCLK from a host system. Generate control signals for controlling the operation timing of 50).

The timing controller 40 receives 3D interpolation image data L 'and R' including the left eye modulation data L 'and the right eye modulation data R' from the 3D image processing circuit 30 and the panel driving circuit 50. Supplies). The timing controller 40 may transmit the 3D interpolation image data L 'and R' to the panel driving circuit 50 at a frame frequency of an input frame frequency x iHz (i is a positive integer of 2 or more). The input frame frequency is 60 Hz in the National Television Standards Committee (NTSC) system and 50 Hz in the PAL (Phase-Alternating Line) system.

The panel driving circuit 50 includes a data driver for driving data lines of the display panel 11 and a gate driver for driving gate lines of the display panel 11.

The data driver includes a shift register, a latch, a digital-to-analog converter (DAC), an output buffer, and the like. The data driver latches the 3D interpolation image data L 'and R' under the control of the timing controller 40. In response to the polarity control signal, the data driver converts the 3D interpolation image data L 'and R' into analog positive gamma compensation voltage and negative gamma compensation voltage to invert the polarity of the data voltage. The data driver supplies data lines synchronized with the gate pulses output from the gate driver to the data lines.

The gate driver includes a shift register, a multiplexer array, a level shifter, and the like. The gate driver sequentially supplies gate pulses (or scan pulses) to the gate lines under the control of the timing controller 40.

The polarizing glasses 60 include a left eye 60L having a left eye polarizing filter (or a first polarizing filter) and a right eye 60R having a right eye polarizing filter (or a second polarizing filter). The left eye polarization filter has the same light absorption axis as the first retarder pattern of the pattern retarder 20, and the right eye polarization filter has the same light absorption axis as the second retarder pattern of the pattern retarder 20. For example, the left eye polarization filter of the polarizing glasses 60 may be selected as the left circular polarization filter, and the right eye polarization filter of the polarizing glasses 60 may be selected as the right circular polarization filter. The user may view the 3D image displayed on the display device 10 through the polarizing glasses 60.

FIG. 2 shows a configuration of the 3D image processing circuit 30 of FIG. 1. 3 shows an operation of the 3D formatter of FIG. 2. 4 and 5 show the operation of the depth adjustment unit 32 of FIG. 6 is a view for explaining the operation of the edge interpolator 33 of FIG.

The 3D image processing circuit 30 includes a 3D formatter 31, a depth adjuster 32, and an edge interpolator 33 as shown in FIG. 2.

As shown in FIG. 3, the 3D formatter 31 has a side by side shape in which a left eye source image and a right eye source image are divided from the left and right by a host system. and bottom), the image source data SDATA is input in the form of a frame to frame in which the left eye source image and the right eye source image are divided into frames. As shown in FIG. 3, the 3D formatter 31 downsamples the input left eye source image and then processes the sampled data to generate left eye data L for displaying the left eye image. The 3D formatter 31 downsamples the input right eye source image and then processes the sampled data to generate right eye data R for displaying the right eye image. As shown in FIG. 3, the 3D formatter 31 alternately aligns the left eye data L and the right eye data R by line-by-line to generate input 3D image data L and R, and then supply them to the depth adjustment unit 32. do.

As shown in FIG. 4, the depth adjuster 32 adjusts the left eye data L and the right eye data R from the original display position in a horizontal direction opposite to each other (ie, in the left horizontal direction or the right horizontal direction) to adjust the depth of the 3D image. The number of shifted pixels may be changed according to the input depth value DPI. The depth adjusting unit 32 increases the number of shifted pixels more than the predetermined value when the input depth value DPI is greater than the predetermined reference value, and conversely, increases the number of shifted pixels when the input depth value DPI is smaller than the predetermined reference value. Can be smaller than the value. The input depth value DPI may be extracted when the 3D formatter 31 generates the input 3D image data L and R, or may be separately input from the user through a user interface (not shown). The depth adjustment unit 32 adjusts the depth of the 3D image by using left eye data and right eye data shifted in opposite directions by N pixels from the original display position. In this case, the left eye data may be shifted in one of the left and right directions by the N pixels from the original display position, and conversely, the right eye data may be shifted in the other one of the left and right directions by the N pixels from the original display position. .

When the depth is adjusted by the depth adjuster 32, a problem may occur in which image data is lost or not displayed in the left and right edge regions of the 3D image by the number of shifted pixels as shown in FIG. 5. In FIG. 5, left eye data L1, L3, L5, ..., L2159 are shifted left by N pixels, and right eye data R2, R4, R6, ..., R2160 are N pixels. As an example, it is shifted to the right as much as it is. In this case, the left edge of the left eye data (L1, L3, L5, ..., L2159) corresponds to the portion lost due to the left shift, and data is lost in the right edge region of the 3D image by the amount of data loss of the left edge. The missing part appears. In addition, the right edge of the right eye data R2, R4, R6, ..., R2160 corresponds to a portion lost due to the right shift, and there is no data in the left edge region of the 3D image by the amount of data loss of the right edge. Part will appear.

In order to solve a problem in which image data is lost or not displayed in the left and right edge regions of the 3D image by the number of shifted pixels, the edge interpolator 33 shifts the 3D image having the depth adjusted as shown in FIG. The first shift correction region AR1 and the second shift correction region AR2 are respectively positioned on the left and right sides with the shift non-correction region NSC interposed therebetween. The sizes of the first shift correction region AR1 and the second shift correction region AR2 may vary in proportion to the number of pixels shifted. The edge interpolator 33 interpolates the left eye and right eye data corresponding to the first shift correction region AR1 and the left eye and right eye data corresponding to the second shift correction region AR2 in various methods as shown in FIGS. 7 to 10B. can do. Through this interpolation process, 3D interpolation image data L 'and R' including left eye modulation data L 'and right eye modulation data R' are generated.

7 and 8 show examples of an operation of the edge interpolator 33. 7 and 8, Lx, z (x is a positive odd number, and z is a positive integer) is left eye data, and Ry, z (y is a positive even number, and z is a positive integer) right eye data. Represent each.

Referring to FIG. 7, for depth adjustment, the left eye data is shifted to the left by one pixel from the original display position, and the right eye data is shifted to the right by one pixel from the original display position. In this case, the edge interpolator 33 sets the first shift correction region AR1 to the left edge of the 3D image including the one left pixel of each horizontal display line, and sets the second shift correction region AR2 to each horizontal position. The right edge of the 3D image including one right pixel of the display lines may be set.

Referring to FIG. 8, for depth adjustment, the left eye data is shifted to the left by 2 pixels from the original display position, and the right eye data is shifted to the right by 2 pixels from the original display position. In this case, the edge interpolator 33 sets the first shift correction region AR1 to the left edge of the 3D image including the two left pixels of the horizontal display lines, and sets the second shift correction region AR2 to each horizontal position. The right edge of the 3D image including two pixels on the right side of the display lines may be set.

The edge interpolator 33 performs a first shift correction region through a first interpolation process using first left eye data lost due to the left shift and second left eye data shifted into the first shift correction region AR1 due to the left shift. The left eye modulation data to be displayed at AR1 is generated. In the first interpolation process, as shown in FIG. 7, the first left eye data and the second left eye data may be averaged, or as shown in FIG. 8, the first left eye data and the second left eye data may be averaged, respectively.

The edge interpolator 33 is displayed on the first shift correction region AR1 through a second interpolation process using right eye data shifted from the first shift correction region AR1 to the shift non-correction region NSC due to the right shift. Generates right eye modulation data. In the second interpolation process, as illustrated in FIG. 7, the first shift correction region AR1 and the shift non-correction region NSC in contact with the same are filled with the same data, or as shown in FIG. 8, the first shift correction is performed through data replication. The area AR1 and the shift non-correction area NSC in contact with the area AR1 may be filled with other data.

The edge interpolator 33 performs a second shift correction region through a third interpolation process using first right eye data lost due to the right shift and second right eye data shifted into the second shift correction area AR2 due to the right shift. The right eye modulated data to be displayed at (AR2) is generated. In the third interpolation process, as shown in FIG. 7, the first right eye data and the second right eye data may be averaged, or as illustrated in FIG. 8, two first right eye data and two second right eye data may be averaged.

The edge interpolator 33 is displayed on the second shift correction region AR2 through a fourth interpolation process using left eye data shifted from the second shift correction region AR2 to the shift non-correction region NSC due to the left shift. Generate left eye modulation data to be generated. In the fourth interpolation process, as shown in FIG. 7, the first shift correction region AR2 and the shift non-correction region NSC in contact with the same are filled with the same data, or as shown in FIG. 8, the second shift correction is performed through data replication. The area AR2 and the shift non-correction area NSC in contact with the area AR2 may be filled with other data.

9A and 9B show other operation examples of the edge interpolator 33.

For depth adjustment, the left eye data is shifted to the left by 1 to 3 pixels from the original display position as shown in FIG. 9A, and the right eye data is shifted to the right by 1 to 3 pixels from the original display position as shown in FIG. 9B. have. In this case, the edge interpolator 33 uses the first shift correction region AR1 as the left two pixels, the left four pixels, and the left six pixels of the horizontal display lines as shown in FIGS. 9A and 9B, respectively. It can be set to the left edge of the included 3D image. In addition, as illustrated in FIGS. 9A and 9B, the edge interpolation unit 33 includes the second shift correction region AR2 including two right pixels, four right pixels, and six right pixels of the horizontal display lines, respectively. It can be set to the right edge of the 3D image.

The edge interpolator 33 performs a first shift correction region through a first interpolation process using first left eye data lost due to the left shift and second left eye data shifted into the first shift correction region AR1 due to the left shift. The left eye modulation data to be displayed at AR1 is generated. In the first interpolation process, as shown in FIG. 9A, at least two or more of a duplicate of the first left eye data, an average of the first left eye data, an average of the first left eye data and the second left eye data, and an average of the second left eye data. It may include. Left eye modulation data taken as an average in the first shift correction region AR1 may be alternated with left eye modulation data which is not taken as an average.

The edge interpolator 33 has first right eye data shifted in the first shift correction region AR1 due to the right shift and a second right eye shifted from the first shift correction region AR1 to the shift non-correction region NSC. The right eye modulation data to be displayed in the first shift correction region AR1 is generated through a second interpolation process using the data. In the second interpolation process, as illustrated in FIG. 9B, at least two or more of a duplicate of the first right eye data, an average of the first right eye data, and an average of the first right eye data and the second right eye data may be included. The right eye modulation data taken as an average in the first shift correction region AR1 may be alternated with the right eye modulation data which is not taken as an average.

The edge interpolator 33 performs a second shift correction region through a third interpolation process using first right eye data lost due to the right shift and second right eye data shifted into the second shift correction area AR2 due to the right shift. The right eye modulated data to be displayed at (AR2) is generated. In the third interpolation process, as illustrated in FIG. 9B, at least two or more of replication for the first right eye data, an average of the first right eye data, an average of the first right eye data and the second right eye data, and an average of the second right eye data. It may include. The right eye modulation data taken as an average in the second shift correction region AR2 may be alternated with the right eye modulation data which is not taken as an average.

The edge interpolator 33 has first left eye data shifted in the first shift correction region AR2 due to left shift and a second left eye shifted from the second shift correction region AR2 to the shift non-correction region NSC. The left eye modulation data to be displayed in the second shift correction region AR2 is generated through a fourth interpolation process using the data. In the fourth interpolation process, as illustrated in FIG. 9A, at least two or more of a duplicate of the first left eye data, an average of the first left eye data, and an average of the first left eye data and the second left eye data may be included. Left eye modulation data taken as an average in the second shift correction region AR2 may be alternated with left eye modulation data that is not taken as an average.

10A and 10B show still another example of operation of the edge interpolator 33.

For depth adjustment, the left eye data is shifted left by 1 pixel to 3 pixels from the original display position as shown in FIG. 10A, and the right eye data is shifted right by 1 pixel to 3 pixels from the original display position as shown in FIG. 10B. have. In this case, the edge interpolator 33 uses the first shift correction region AR1 as the left two pixels, the left four pixels, and the left six pixels of the horizontal display lines as shown in FIGS. 10A and 10B, respectively. It can be set to the left edge of the included 3D image. In addition, the edge interpolator 33 includes the second shift correction region AR2 as shown in FIGS. 10A and 10B, respectively including two right pixels, four right pixels, and six right pixels of the horizontal display lines. It can be set to the right edge of the 3D image.

10A and 10B illustrate a left eye (or right eye) modulation in which the left eye (or right eye) modulation data taken as an average in the first and second shift correction areas AR1 and AR2 is not taken as an average, unlike in FIGS. 9A and 9B. The only difference is that they are arranged consecutively without alternating with the data, and the rest are substantially very similar. Therefore, detailed description of FIGS. 10A and 10B will be omitted.

As described above, the present invention compensates for the loss and non-display of the image data which may occur while adjusting the depth in the polarization glasses type stereoscopic image display apparatus by compensating at least one of data replication and data average, thereby adjusting the depth. The phenomenon in which the edge of the 3D image is degraded can be suppressed.

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. Therefore, the present invention should not be limited to the details described in the detailed description, but should be defined by the claims.

10 display element 20 patterned retarder
30: 3D image processing circuit 31: 3D formatter
32: depth adjustment unit 33: edge interpolation unit
40: timing controller 50: panel drive circuit
60: polarized glasses

Claims (10)

A 3D formatter for separating left eye data for displaying a left eye image and right eye data for displaying a right eye image from image input data input from an external source, and alternately arranging line by line;
A depth adjusting unit configured to adjust the depth of the 3D image by shifting the left eye data and the right eye data by N (N is a positive integer) number of pixels in a horizontal direction opposite to each other according to an input depth value; And
The 3D image of which the depth is adjusted is divided into a first shift correction region and a second shift correction region respectively positioned on the left and right sides with the shift non-correction region and the shift non-correction region interposed therebetween, and the first shift correction region and And an edge interpolation unit interpolating the left eye data and the right eye data in a second shift correction region. The method according to claim 1,
The depth adjusting unit increases the number of pixels shifted if the input depth value is greater than a predetermined reference value, and reduces the number of shifted pixels from the predetermined value if the input depth value is smaller than the reference value. Polarized glasses type stereoscopic image display device. The method according to claim 1,
The left eye data is shifted in one of the left and right directions by the N pixels from the original display position, and the right eye data is shifted in the other direction of the left and right by the N pixels from the original display position. Polarized glasses type stereoscopic image display device. The method according to claim 1,
The edge interpolation unit,
Generate left eye modulation data to be displayed in the first shift correction region through a first interpolation process using first left eye data lost due to left shift and second left eye data shifted into the first shift correction region due to left shift. and;
Generating right eye modulation data to be displayed in the first shift correction region through a second interpolation process using the right eye data shifted from the first shift correction region to the shift non-correction region due to a right shift;
Right eye modulation data to be displayed in the second shift correction region through a third interpolation process using first right eye data lost due to the right shift and second right eye data shifted into the second shift correction region due to the right shift. Generates;
Polarized data characterized in that the left-eye modulation data to be displayed in the second shift correction region is generated through a fourth interpolation process using the left eye data shifted from the second shift correction region to the shift non-correction region due to the left shift. Glasses stereoscopic display device. 5. The method of claim 4,
In the first to fourth interpolation processes, at least one of a data averaging operation and a data duplication operation is performed, respectively. Dividing the left eye data for the left eye image display and the right eye data for the right eye image display from the image source data input from the outside and alternately arranging them by line by line;
Adjusting the depth of the 3D image by shifting the left eye data and the right eye data by N (N is a positive integer) number of pixels in a horizontal direction opposite to each other according to an input depth value; And
The 3D image of which the depth is adjusted is divided into a first shift correction region and a second shift correction region respectively positioned on the left and right sides with the shift non-correction region and the shift non-correction region interposed therebetween, and the first shift correction region and And interpolating the left eye data and the right eye data in a second shift correction region. The method according to claim 6,
The adjusting of the depth may include increasing the number of pixels shifted if the input depth value is greater than a predetermined reference value, and reducing the number of shifted pixels from the predetermined value if the input depth value is smaller than the reference value. A driving method of a three-dimensional image display device of the polarizing glasses method. The method according to claim 6,
The left eye data is shifted in one of the left and right directions by the N pixels from the original display position, and the right eye data is shifted in the other direction of the left and right by the N pixels from the original display position. Method of driving a three-dimensional image display device of the polarizing glasses method. The method according to claim 6,
Interpolating the left eye data and the right eye data in the first shift correction region and the second shift correction region may include:
Generate left eye modulation data to be displayed in the first shift correction region through a first interpolation process using first left eye data lost due to left shift and second left eye data shifted into the first shift correction region due to left shift. Making;
Generating right eye modulation data to be displayed in the first shift correction region through a second interpolation process using the right eye data shifted from the first shift correction region to the shift non-correction region due to a right shift;
Right eye modulation data to be displayed in the second shift correction region through a third interpolation process using first right eye data lost due to the right shift and second right eye data shifted into the second shift correction region due to the right shift. Generating a; And
Generating left eye modulation data to be displayed in the second shift correction region through a fourth interpolation process using left eye data shifted from the second shift correction region to the shift non-correction region due to the left shift. A driving method of a three-dimensional image display device of the polarizing glasses method. The method of claim 9,
And driving at least one of a data averaging operation and a data duplication operation, respectively, in the first to fourth interpolation processes.

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