S S / N S S Patent Application Publication Feb

US 2013 0050817A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2013/0050817 A1 SUM (43) Pub. Date: Feb. 28, 2013

(54) 3D IMAGE DISPLAY DEVICE (52) U.S. Cl...... 359/463:359/462 (75) Inventor: Naoki SUMI, Chu-Nan (TW) (57) ABSTRACT Disclosed is a 3D image display device, comprising an image (73) Assignee: CHIMEI INNOLUX display device including a plurality of right eye pixels and a CORPORATION, Chu-Nan (TW) left eye pixels arranged staggered. Each of the right and left s eye pixels includes a Sub-pixel region having a light shielding element, and at least one dummy Sub-pixel region having a (21) Appl. No.: 13/219,522 dummy light shielding element. The light shielding element and the dummy light shielding element have a same shape. A (22) Filed: Aug. 26, 2011 3D element such as a lenticular lens layer (or a 3D barrier) is disposed on the image display device. The light shielding Publication Classification element of the sub-pixel region can be a TFT and/or a storage capacitor, and the dummy light shielding element of the (51) Int. Cl. dummy Sub-pixel region can be a dummy TFT and/or a GO2B 27/22 (2006.01) dummy storage capacitor.

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3D IMAGE DISPLAY DEVICE shielding element 25. As such, the left eye image will be brighter than the right eye image, thereby causing the Moiré BACKGROUND OF THE DISCLOSURE 1SSC. 0001 1. Field of the Disclosure 0007 FIGS. 1C and 2C show why the Moiré issue occurs 0002 The disclosure relates to 3D image display devices, when the viewer and the 3D image display device are too far and in particular relates to a light shielding element of pixels apart. As shown in FIG. 1C, the right eye R will see 3D of 3D image display devices. aperture areas (first area) 23R on the right eye pixels 12R, and 0003 2. Description of the Related Art the left eye L will see the other 3D aperture areas (second 0004. A barrier type 3D image display device may show area) 2.3L on the left eye pixels 12L. As shown in FIG. 2C, the 3D images as shown in FIG. 1A. An image display device, 3D aperture area (first area) 23R on the right eye pixel 12R is e.g. LCD, includes an array substrate 11, a color filter sub located in the left portion of the right eye pixel 12R, and the strate 13, and a liquid crystal layer 14 disposed therebetween. 3D aperture area (second area) 23L on the left eye pixel 12L A plurality of right eye pixels 12R and left eye pixels 12L are is located in the right portion of the left eye pixel 12L. The 3D staggered arranged to construct a pixel layer 12 on the array aperture area (first area) 23R on the right eye pixel 12R is not substrate 11. A polarizer 15, a glue layer 17, a glass layer 19, shielded by the light shielding element 25, and the 3D aper and a 3D barrier 21 are sequentially disposed on the color ture area (second area) 2.3L on the left eye pixel 12L is almost filter substrate 13. The 3D barrier 21 includes openings 21A shielded by the light shielding element 25. As such, the right disposed between light barriers 21B, and the openings 21A eye image will be brighter than the left eye image, thereby substantially align with interfaces of the right eye pixels 12R causing the Moiré issue. and left eye pixels 12L. As shown in FIG. 1A, a right eye R of 0008. The Moiré issue does not only occur in the barrier a viewer sees right eye images from the right eye pixels 12R type 3D image display devices, but also in the lenticular lens through the openings 21A of the 3D barrier 21, and a left eye type 3D image display devices. A lenticular lens type 3D L of the viewer sees left eye images from the left eye pixels image display device may show 3D images as those shown in 12L through the openings 21A of the 3D barrier 21, respec FIG. 3A. An image display device, e.g. LCD, includes an tively. The right eye R will see 3D aperture areas (first areas) array substrate 11, a color filter substrate 13, and a liquid 23R on the right eye pixels 12R, and the left eye L will see the crystal layer 14 disposed therebetween. A plurality of right other 3D aperture areas (second areas) 23L on the left eye eye pixels 12R and left eye pixels 12L are alternately arranged pixels 12L. The right eye images and the left eye images are to construct a pixel layer 12 on the array substrate 11. A combined in the brain of the viewer for 3D image effect. polarizer 15, a glue layer 17, a glass layer 19, and a lenticular 0005 FIG. 2A shows light shielding elements 25 of the lens layer 27 having a plurality of lenses are sequentially right eye pixel 12R and the left eye pixel 12L. The right eye disposed on the color filter substrate 13. Each of the lenses of pixels 12R include a top part as red pixel, a middle part as the lenticular lens layer 27 substantially corresponds to one green pixel, and a bottom part as blue pixel. Similarly, the left right eye pixel 12R and one left eye pixel 12L. As shown in eye pixel 12L includes a top part as red pixel, a middle part as FIG. 3A, a right eye R of a viewer sees right eye images from green pixel, and a bottom part as blue pixel. In FIG. 2A, each the right eye pixels 12R through the lenticular lens layer 27, of the red, green, and blue pixels of the right eye and left eye and a left eye L of the viewer sees left eye images from the left pixels 12R and 12L has a light shielding element 25. The light eye pixels 12L through the lenticular lens layer 27, respec shielding elements 25 are usually active circuits, such as a tively. The right eye R will see the defocused areas (first area) TFT to control brightness of the pixels. As shown in FIG. 2A, 29R on the right eye pixels 12R, and the left eye L will see the the 3D aperture area (first area) 23R on the right eye pixel 12R other defocused areas (second area) 29L on the left eye pixels is located in the middle position of the right eye pixel 12R, 12L. The right eye images and the left eye images are com and the 3D aperture area (second area) 23L on the left eye bined in the brain of the viewer for 3D image effects. pixel 12L is located in the middle position of the left eye pixel 0009 FIG. 3B shows light shielding elements 25 of the 12L. The 3D aperture areas 23R (first area) and 23L (second right eye pixel 12R and the left eye pixel 12L. The right eye area) on the right and left eye pixels 12R and 12L are shielded pixels 12R include a top part as red pixel, a middle part as by a part of the light shielding elements 25. As such, the right green pixel, and a bottom part as blue pixel. Similarly, the left eye image and the left eye image have the same brightness. eye pixel 12L includes a top part as red pixel, a middle part as 0006. However, if the viewer and the 3D image display green pixel, and a bottom part as blue pixel. In FIG. 3B, each device are too close together or too far apart, the Moiré issue of the red, green, and blue pixels of the right eye and left eye will occur. The Moiré issue is when viewers see images pixels 12R and 12L has a light shielding element 25. The light having alternate bright lines and dark lines. FIGS. 1B and 2B shielding elements 25 are usually active circuits, such as show why the Moiré issue occurs when the viewer and the 3D TFTs to control brightness of the pixels. As shown in FIG.3B, image display device are too close together. As shown in FIG. the defocused area (first area) 29R on the right eye pixel 12R 1B, the right eye R will see 3D aperture areas (first area) 23R is located in the middle position of the right eye pixel 12R, on the right eye pixels 12R, and the left eye L will see the other and the defocused area (second area) 29L on the left eye pixel 3D aperture areas (second area) 23L on the left eye pixels 12L is located in the middle position of the left eye pixel 12L. 12L. As shown in FIG. 2B, the 3D aperture area (first area) The defocused areas 29R (first area) and 29L (second area) 23R on the right eye pixel 12R is located in the right portion has a large width W to overcome the Moiré issue. However, of the right eye pixel 12R, and the 3D aperture area (second the large width W may cause other problems, e.g. a narrower area) 2.3L on the left eye pixel 12L is located in the left portion Viewing range. of the left eye pixel 12L. The 3D aperture area (first area) 23R on the right eye pixel 12R is almost shielded by the light BRIEF SUMMARY OF THE DISCLOSURE shielding element 25, and the 3D aperture area (second area) 0010. One embodiment of the disclosure provides a 3D 23L on the left eye pixel 12L is not shielded by the light image display device, comprising: an image display device US 2013/0050817 A1 Feb. 28, 2013 includingapixel layer having a plurality of pixels divided into a 3D barrier 51 are sequentially disposed on the color filter a plurality of right eye pixels and a plurality of left eye pixels substrate 43. The 3D barrier 51 includes openings 51A dis arranged staggered, wherein each of the right eye pixels and posed between light barriers 51B, and the openings 51A the left eye pixels includes a Sub-pixel region and at least one substantially align with interfaces of the right eye pixels 42R dummy Sub-pixel region, wherein the Sub-pixel region and left eye pixels 42L. As shown in FIG. 4, a right eye R of includes a light shielding element, and the dummy Sub-pixel a viewer sees right eye images from the right eye pixels 42R region includes a dummy light shielding element having a through the openings 51A of the 3D barrier 51, and a left eye Substantially same shape with the light shielding element; and L of the viewer sees left eye images from the left eye pixels a 3D element disposed on the image display device. 42L through the openings 51A of the 3D barrier 51, respec 0011. One embodiment of the disclosure provides a tively. The right eye R will see 3D aperture areas (first area) method of displaying a 3D image, comprising: providing the 53R on the right eye pixels 42R, and the left eye L will see the described 3D image display device for a viewer; and display other 3D aperture areas (second area) 53L on the left eye ing a right eye image from the right eye pixel to a right eye of pixels 42L. The right eye images and the left eye images are the viewer through the 3D element, and displaying a left eye combined in the brain of the viewer for 3D image effects. image from the left eye pixel to a left eye of the viewer Note that the image display device includes, but is not limited through the 3D element, respectively, wherein the right eye to, the LCD as shown in FIG. 4. For example, the image sees a first area on the right eye pixel, and the left eye sees a display device can be an electronic paper, electronic reader, second area on the left eye pixel, and wherein the first and electroluminescent display (ELD), organic electrolumines second areas have a same width which is substantially the cent display (OELD), vacuum fluorescent display (VFD), same as the Sub-pixel region width or the dummy Sub-pixel light emitting diode display (LED), cathode ray tube (CRT), width. liquid crystal display (LCD), plasma display panel (PDP), 0012. A detailed description is given in the following digital light processing (DLP) display, liquid crystal on sili embodiments with reference to the accompanying drawings. con (LCoS), organic light-emitting diode (OLED), Surface conduction electron-emitter display (SED), field emission BRIEF DESCRIPTION OF THE DRAWINGS display (FED), laser TV (Quantum dot laser; Liquid crystal laser), Ferro liquid display (FLD), interferometer modulator 0013 The disclosure can be more fully understood by display (iMoD), thick-film dielectric electroluminescent reading the Subsequent detailed description and examples (TDEL), quantum dot display (QD-LED), telescopic pixel with references made to the accompanying drawings, display (TPD), organic light-emitting transistor (OLET), wherein: electrochromic display, laser phosphor display (LPD), or the 0014 FIGS. 1A-1C are cross sections of a barrier type 3D like. It is understood that the liquid crystal layer 44 can be image display device in related art; omitted in other image display devices. Also note that the 3D 0015 FIGS. 2A-2C are top views of 3D aperture areas on barrier 51 is not limited to only the fixed type barrier, but also pixels corresponding to FIGS. 1A-1C: a Switchable barrier cell that comprise two glasses, liquid 0016 FIG. 3A is a cross sections of a lenticular lens type crystal and polarizer. Furthermore, the 3D barrier 51 can be 3D image display device in related art; placed above the image display device. 0017 FIG. 3B is a top view of defocused areas on pixels corresponding to FIG. 3A: 0024 FIG. 5A shows a design of sub-pixels introduced in 0018 FIG. 4 is a cross section of a barrier type 3D image the right eye pixel and the left eye pixels. The right eye pixel display device in one embodiment of the disclosure; 42R is divided into one sub-pixel region 42R1 and one 0019 FIGS.5A-5B are top views of 3D aperture areas on dummy sub-pixel region 42R2 with a same width W. The pixels corresponding to FIG. 4; sub-pixel region 42R1 and dummy sub-pixel region 42R2 include top portions of red sub-pixels, middle portions of 0020 FIG. 6A is a cross sections of a lenticular lens type green sub-pixels, and bottom portions of blue sub-pixels. The 3D image display device in one embodiment of the disclo left eye pixel 42L is divided into one sub-pixel region 42L1 Sure; and and one dummy sub-pixel region 42L2 with a same width W. 0021 FIG. 6B is a top view of defocused areas on pixels The Sub-pixel region 42L1 and dummy Sub-pixel region 42L2 corresponding to FIG. 6A. include top portions of red sub-pixels, middle portions of DETAILED DESCRIPTION OF THE green sub-pixels, and bottom portions of blue sub-pixels. The DISCLOSURE 3D aperture areas 53R (first area) and 53L (second area) have a width W, which is substantially the same as the width W of 0022. The following description is of the best-contem the sub-pixel regions 42R1 and 42L1 and the dummy sub plated mode of carrying out the disclosure. This description is pixel regions 42R2 and 42L2. In addition, the width Wa of the made for the purpose of illustrating the general principles of 3D aperture areas 53R (first area) and 53L (second area) is the disclosure and should not be taken in a limiting sense. The controlled by and substantially the same as the width W of scope of the disclosure is best determined by reference to the the opening 51A in the 3D barrier 51. Each of the sub-pixel appended claims. regions 42R1 and 42L1 has a light shielding element 55, and 0023. In one embodiment, a barrier type 3D image display each of the dummy sub-pixel regions 42R2 and 42L2 has a device may show 3D images as those shown in FIG. 4. An dummy light shielding element 55", respectively. The light image display device, e.g. LCD, includes an array Substrate shielding element 55 and the dummy light shielding element 41, a color filter substrate 43, and a liquid crystal layer 44 55 have same shape. When the image display device is an disposed therebetween. A plurality of right eye pixels 42R LCD, the light shielding element 55, for instance, is a TFT and left eye pixels 42L are alternately arranged to construct a and/or a storage capacitor (Cs) to control the brightness of the pixel layer 42 disposed on the array substrate 41. A polarizer right or left eye pixels, and the dummy light shielding element 45, a glue layer 47, a glass layer 49, and a 3D element such as 55, for instance, is a dummy TFT and/or a dummy storage US 2013/0050817 A1 Feb. 28, 2013

capacitor (Cs) to shield light without other functions. In one lens type 3D image display device. As shown in FIG. 6A, an embodiment, the light shielding element 55 includes two image display device, e.g. LCD, includes an array Substrate TFTS 1, a gate line 2, and a polysilicon line 4 connected to a 41, a color filter substrate 43, and a liquid crystal layer 44 vertical Cs line (not shown) in right edge of the left eye pixel disposed therebetween. A plurality of right eye pixels 42R 42L, as shown in FIG. 5A. A pixel electrode 5 may connect to and left eye pixels 42L are alternately arranged to construct a the TFTs 1 through the contact hole 3 to control liquid crystal pixel layer 42 on the array substrate 41. A polarizer 45, a glue orientation. The dummy light shielding element 55' includes layer 47, a glass layer 49, and a 3D element such as a lenticu the same shape as the light shielding element 55, such as two lar lens layer 57 having a plurality of lenses are sequentially dummy TFTs, a dummy gate line, and a dummy polysilicon disposed on the color filter substrate 43. Each of the lenses of line. Note that the other design can be adopted for the light the lenticular lens layer 57 substantially corresponds to one shielding element 55 and the dummy light shielding element right eye pixel 42R and one left eye pixel 42L. As shown in 55. FIG. 6A, a right eye R of a viewer sees right eye images from 0025 If the 3D aperture area (first area) 53R on the right the right eye pixels 42R through the lenticular lens layer 57. eye pixel 42R shifts right and the 3D aperture area (second and a left eye L of the viewer sees left eye images from the left area) 53L on the left eye pixel 42L shifts left when the viewer eye pixels 42L through the lenticular lens layer 57, respec is closer to the 3D image display device as shown in FIG. 1B, tively. The right eye R will see the defocused areas (first area) the 3D aperture areas 53R (first area) and 53L (second area) 59R on the right eye pixels 42R, and the left eye L will see the on the right eye pixel 42R and left eye pixel 42L are shielded other defocused areas (second area) 59L on the left eye pixels by the light shielding elements 55 and the dummy light 42L. The right eye images and the left eye images are com shielding elements 55' of same shape. On the other hand, if the bined in the brain of the viewer for 3D image effects. Note that 3D aperture area (first area) 53R on the right eye pixel 42R the image display device includes, but is not limited to, the shifts left and the 3D aperture area (second area) 53L on the LCD as shown in FIG. 6A. For example, the image display left eye pixel 42L shifts right when the viewer is far away device can be an electronic paper, electronic reader, electrolu from the 3D image display device as shown in FIG. 1C, the minescent display (ELD), organic electroluminescent display 3D aperture areas 53R (first area) and 53L (second area) on (OELD), vacuum fluorescent display (VFD), light emitting the right eye pixel 42R and left eye pixel 42L are shielded by diode display (LED), cathode ray tube (CRT), liquid crystal the light shielding elements 55 and the dummy light shielding display (LCD), plasma display panel (PDP), digital light pro elements 55' of same shape. In other words, the Moiré issue is cessing (DLP) display, liquid crystal on silicon (LCoS). mitigated by the following design: the right and left eye pixels organic light-emitting diode (OLED), Surface-conduction 42R and 42L are divided into several sub-pixel regions 42R1 electron-emitter display (SED), field emission display and 42L1 and dummy sub-pixel regions 42R2 and 42L2 (FED), laser TV (Quantum dot laser; Liquid crystal laser), having the light shielding elements 55 and the dummy light Ferro liquid display (FLD), interferometer modulator display shielding elements 55' of same shape, and the width W of the (iMoD), thick-film dielectric electroluminescent (TDEL), 3D aperture areas 53R (first area) and 53L (second area) is quantum dot display (QD-LED), telescopic pixel display substantially the same as the width W of the sub-pixel (TPD), organic light-emitting transistor (OLET), electro regions 42R1, and 42L1 and the dummy Sub-pixel regions chromic display, laser phosphor display (LPD), or the like. It 42R2 and 42L2. is understood that the liquid crystal layer 44 can be omitted in 0026 FIG. 5B shows another design of the sub-pixel other image display devices. Also note that the lenticular lens regions and the dummy sub-pixel regions. In FIG. 5B, the layer 57 is not limited to only the fixed type lenticular lens right eye pixels 42R is divided into one sub-pixel region 42R1 layer, but also a switchable lenticular lens cell that comprise and two dummy sub-pixel regions 42R2, and 42R3, and the two glasses, liquid crystal, polarizer and other components. left eye pixels 42L is divided into one sub-pixel region 42L1 0028 FIG. 6B shows sub-pixels introduced in the right eye and two dummy sub-pixel regions 42L2 and 42L3. The 3D pixel and the left eye pixels. The right eye pixel 42R is divided aperture areas 53R (first area) and 53L (second area) have a into one Sub-pixel region 42R1 and one dummy Sub-pixel same width Wa which is substantially the same as the width region 42R2 with a same width W. The sub-pixel region W of the sub-pixel regions 42R1 and 42L1 and the dummy 42R1 and the dummy sub-pixel region 42R2 include top sub-pixel regions 42R2, 42R3, 42L2, and 42L3. In addition, portions of red Sub-pixels, middle portions of green Sub the width W of the 3D aperture area 53R (first area) and 53L pixels, and bottom portions of blue sub-pixels. The left eye (second area) is controlled by and Substantially the same as pixel 42L is divided into one sub-pixel region 42L1 and one the width W, of the opening 51A in the 3D barrier 51. The dummy sub-pixel region 42L2 with a same width W. The light shielding elements 55 and the dummy light shielding Sub-pixel region 42L1 and the dummy Sub-pixel region 42L2 elements 55' in FIG. 5B is substantially the same as that in include top portions of red sub-pixels, middle portions of FIG. 5A. Similarly, the Moiré issue is mitigated by the fol green sub-pixels, and bottom portions of blue sub-pixels. The lowing design: the right and left eye pixels 42R and 42L are defocused areas 59R (first area) and 59L (second area) have a divided into several sub-pixel regions 42R1 and 42L1 and same width W, which is substantially the same as the width dummy sub-pixel regions 42R2, 42R3, 42L2, and 42L3 hav W of the sub-pixel regions 42R1 and 42L1 and the dummy ing the light shielding elements 55 and the dummy light sub-pixel region 42R2, and 42L2. In addition, the width W of shielding elements 55' of same shape, and the width Wa of the the defocused areas 59R (first area) and 59L (second area) is 3D aperture areas 53R (first area) and 53L (second area) is controlled by a curvature radius of the lenticular lens layer 57 substantially the same as the width W of the sub-pixel and total thickness from the pixel layer 42 to the lenticular regions 42R1 and 42L1 and the dummy Sub-pixel regions lens layer 57. When the lenticular lens layer thickness is a 42R2, 42R3, 42L2, and 42L3. constant, the lenticular lens layer 57 having alonger curvature 0027. The described design is not only useful for the bar radius will make the defocused areas 59R (first area) and 59L rier type 3D image display device, but also for the lenticular (second area) have a wider width W. On the other hand, the US 2013/0050817 A1 Feb. 28, 2013

width W, of the defocused areas 59R (first area) and 59L 3. The 3D image display device as claimed in claim 1, (second area) can be reduced by decreasing the curvature wherein the 3D element comprises a lenticular lens layer radius of the lenticular lens layer 57. Each of the sub-pixel having a plurality of lenses. regions 42R1 and 42L1 has the light shielding elements 55. 4. The 3D image display device as claimed in claim 3, and each of the dummy sub-pixel regions 42R2 and 42L2 has wherein each one of the lenses Substantially corresponds to the dummy light shielding elements 55'. The light shielding one of the right eye pixels and one of the left eye pixels. elements 55 and the dummy light shielding elements 55 have 5. The 3D image display device as claimed in claim 1, wherein the 3D element comprises a 3D barrier including a same shape. The light shielding elements 55 and the dummy plurality of openings. light shielding elements 55' in FIG. 6B is substantially the 6. The 3D image display device as claimed in claim 5, same as that in FIGS.5A and 5B. Similarly, the Moiré issue is wherein each one of the openings is Substantially aligned with mitigated without narrowing viewing range by the following an interface between the right eye pixel and the left eye pixel, design: the right and left eye pixels 42R and 42L are divided and wherein each one of the openings have a width which is into several sub-pixel regions 42R1 and 42L1 and the dummy substantially the same as the sub-pixel region width or the Sub-pixel regions 42R2 and 42L2 having the light shielding dummy sub-pixel width. elements 55 and the dummy light-shielding elements 55' of 7. A method of displaying a 3D image, comprising: same shape, and the width W, of the defocused areas 59R providing the 3D image display device as claimed in claim (first area) and 59L (second area) is substantially the same as 1 for a viewer; and the width of the width W of the sub-pixel regions 42R1 and displaying a right eye image from the right eye pixel to a 42L1 and the dummy sub-pixel regions 42R2 and 42L2. right eye of the viewer through the 3D element, and 0029. Note that the right and left eye pixels are divided into displaying a left eye image from the left eye pixel to a left one sub-pixel region and one or two dummy Sub-pixel regions eye of the viewer through the 3D element, respectively, in the embodiments, but the right and left eye pixels can be wherein the right eye sees a first area on the right eye pixel, divided into more than one Sub-pixel region and two dummy and the left eye sees a second area on the left eye pixel, Sub-pixel regions, e.g. 4, 10, or more. and 0030. While the disclosure has been described by way of wherein the first and second areas have a same width which example and in terms of the preferred embodiments, it is to be is Substantially the same as the Sub-pixel region width or understood that the disclosure is not limited to the disclosed the dummy sub-pixel width. embodiments. To the contrary, it is intended to cover various 8. The method as claimed in claim 7, wherein the 3D modifications and similar arrangements (as would be appar element comprises a lenticular lens layer having a plurality of ent to those skilled in the art). Therefore, the scope of the lenses. appended claims should be accorded the broadest interpreta 9. The method as claimed in claim 8, wherein each one of tion so as to encompass all Such modifications and similar the lenses Substantially corresponds to one of the right eye arrangements. pixels and one of the left eye pixels. What is claimed is: 10. The method as claimed in claim8, wherein the width of 1. A 3D image display device, comprising: the first and second areas is controlled by a curvature radius of an image display device including a pixel layer having a the lenses and a total thickness from the pixel layer to the plurality of pixels divided into a plurality of right eye lenticular lens layer. pixels and a plurality of left eye pixels arranged Stag 11. The method as claimed in claim 7, wherein the 3D gered, element comprises a 3D barrier having a plurality of open wherein each of the right eye pixels and the left eye 1ngS. pixels includes a Sub-pixel region and at least one 12. The method as claimed in claim 11, wherein each one dummy Sub-pixel region, of the openings is Substantially aligned with an interface wherein the Sub-pixel region includes a light shielding between the right eye pixel and the left eye pixel, and wherein element, and the dummy Sub-pixel region includes a each one of the openings have a width which is Substantially dummy light shielding element having a Substantially the same as the Sub-pixel region width or the dummy Sub same shape with the light shielding element; and pixel region width. a 3D element disposed on the image display device. 13. The method as claimed in claim 11, wherein the width 2. The 3D image display device as claimed in claim 1, of the first and second areas is controlled by the width of the wherein the Sub-pixel region and the dummy Sub-pixel region openings of the 3D barrier. have a Substantially same width. k k k k k