|
|
| |
 |
| Share this page: Share
|
| Panasonic's FULL HD 3D displays use the Frame Sequential method to display alternate left-eye and right-eye images at high speed to achieve a 3D effect. Left-eye and right-eye images differ slightly in order to match the natural image disparity that is perceived by our left and right eyes. The quality of 3D images depends largely on how clearly the left-eye and right-eye images are recognized by the individual eyes of the viewer, without crosstalk interference. |
|
| |
|
| back to top |
| |
|
|
| The first advantage is the driving method employed by the plasma display. While the LCD illuminates one scanning line of the frame at a time from top to bottom (the line-at-a-time driving method), the plasma display illuminates the whole frame at a time (the frame-at-a-time driving method). |
|
| |
|
| |
| The driving methods used by the two display devices do not create any noticeable difference when producing 2D images. When displaying 3D images, however, the line-at-a-time driving method used by the LCD degrades the image quality. Since the FULL HD 3D system has to deliver left-eye and right-eye images accurately to the corresponding eyes of the viewer through 3D Eyewear, the screen display and 3D Eyewear operation must be synchronized with high precision. With the frame-at-a-time driving method of the plasma display, the TV displays the right-eye image at the precise moment that the right-eye shutter on the 3D Eyewear opens. With the line-at-a-time driving method, on the other hand, while the right-eye shutter of the 3D Eyewear is open, part of the previous left-eye image is more likely to remain on the screen. Therefore, the plasma display, with its frame-at-a-time driving method, is superior in its ability to display clear 3D images. |
|
| |
|
| back to top |
|
 |
| The second advantage of the plasma display is that it is a self-illuminating flat panel display (impulse display) device. The operating principle is completely different from that of the LCD, which displays images by moving liquid crystal elements to pass or block the light from a backlight. |
|
| |
|
| |
| The plasma display's light emitting speed is incomparably faster than the physical motion speed of the liquid crystal elements. This is a great advantage for achieving the high-speed image display required for 3D systems. For the LCD, there is a limit on reducing the time required for the motion hold display. When an LCD TV alternately displays left-eye and right-eye images at high speed for FULL HD 3D, each frame partially overlaps with the next frame. On the other hand, because the PDP's pixels emit light in a split second, the frames do not overlap even at each display speed of 1/120th of a second. Naturally, crosstalk is also caused when the emission start-up itself is not insufficiently fast, but plasma displays are advantageous in that regard as well. This difference results in a major difference in 3D image quality, making plasma display images sharp and clear, rather than blurry. |
|
| |
|
| back to top |
| |
 |
| The plasma display is ideal for displaying 3D images due to its basic operating principle as previously described, but Panasonic has taken another step to refine the technology. The result is the Revolutionary NeoPDP. |
|
|
 |
| For FULL HD 3D, each frame is displayed for only 1/120th of a second, which is half the time that the frame is displayed for full-HD 2D images. Reducing the emitting time duration without any change to the light emitting characteristics would lower the screen brightness. To solve this problem, Panasonic developed a new phosphor that maintains the same level of brightness in 3D image displays and shortens the afterglow time — a factor that degrades image quality in alternating image displays — to 1/3. The new material has achieved a shorter emitting duration and more intense light, resulting in brighter, sharper 3D images. |
|
| |
|
| back to top |
|
 |
| Panasonic's efforts to create a more advanced PDP for reproducing clear 3D images extended beyond the development of a new phosphor with a shorter afterglow time, to include a reexamination of drive technology. The conventional drive system illuminates pixels in the order of dark-area signal to bright-area signal when displaying a frame. When this light emitting sequence is used to display 3D images, the highest intensity light emission occurs last. This causes an afterglow to remain when the next frame is displayed. To resolve this problem, the light emitting sequence is reversed in the FULL HD 3D Plasma VIERA. Pixels are illuminated in the order of bright-area signal to dark-area signal. This effectively minimizes afterglow and improves 3D image resolution. |
|
| |
|
| |
The development of the new phosphor and the redesign of the drive system have achieved significant improvements in afterglow characteristics, although they differ in their improvement approach. They have also successfully suppressed the kind of crosstalk that degrades the 3D effect. The Japan Electronics and Information Technology Industries Association (JEITA) established guidelines (tentative) for 3D video equipment manufacturers, which call for manufacturers' efforts to minimize double images by preventing the image for one eye from being perceived by the other eye, and by quickly alternating the images. Recognizing the importance of these issues from early on, Panasonic strove to reduce double images in our initial product development stage. As a result, Panasonic is able to deliver stunning 3D images with virtually no crosstalk.
In principle, the plasma display is an ideal display device for reproducing 3D images. Panasonic used proprietary technologies to further refine the plasma display advantages and created the FULL HD 3D Plasma VIERA. Visit your nearest electronics store or exhibition to see VIERA's high-quality 3D image display with your own eyes and experience the new and exciting FULL HD 3D world.
|
| Share this page: Share
|
|
| back to top |