3D and nothing more
The transition to the mass use of autostereoscopic displays on televisions and laptops is incredibly fast. Last summer, the first 3D laptops appeared, for example, you can recall the Toshiba A665 model supplied with a pair of shutter glasses, this year at CES 2011 Toshiba presented a prototype of a new laptop with 3D image support for which glasses are not required. Obviously, the progress in this area is unstoppable, and a number of interesting solutions have already been developed to level out such natural disadvantages of 3D as loss of resolution, limited viewing angles, the appearance of “blind zones”, etc.
Autosterescopy, the construction of a three-dimensional visual image without additional equipment, has been used in scientific research since the early 80s, but the transition to its mass use in consumer equipment has been noted only in the last few years.
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The principle of autostereoscopic display, like other types of stereoscopic equipment itself, is built on the brain's “deception” so that a two-dimensional image can be transformed into a three-dimensional one: each eye sees different images designed to appear from two different viewing positions.
There are two main methods that provide volumetric autostereoscopic image: using the parallax barrier and lenticular lens.
The parallax barrier, in fact, is another additional integrated LCD screen with a grid of vertical opaque stripes that obscure the light from the lamp on those or other pixels depending on the viewing angle. This technology thanks to a layer of liquid crystals allows you to switch to the usual two-dimensional mode.
When using biconvex lenses, the light is directed to a certain observation zone, which allows each eye to see a different image at the optimal distance.
Note that if earlier it was a question of two-parallax systems, then in new solutions, images are already viewed from nine directions.
So Toshiba Integral Imaging technology, developed on the basis of a system of microlenses from liquid crystals, provides the ability to form a frame in nine angles, similar to stereo card. The lens, located in front of nine pixels reflected multiple times, directs the viewer's gaze to one of them, which one depends on the angle of view. Thus, in accordance with the angle of view, the overall three-dimensional image is added. In addition, if earlier the viewer had to keep his head within a certain angle from the panel, now the panel itself adjusts the normal viewing range to match the position of the viewer.
Most recently, Toshiba introduced a prototype tablet computer equipped with a 12.1-inch touchscreen display and a six-axis accelerometer that monitors the movement and tilting of a laptop.
Autosterescopy, the construction of a three-dimensional visual image without additional equipment, has been used in scientific research since the early 80s, but the transition to its mass use in consumer equipment has been noted only in the last few years.
')
The principle of autostereoscopic display, like other types of stereoscopic equipment itself, is built on the brain's “deception” so that a two-dimensional image can be transformed into a three-dimensional one: each eye sees different images designed to appear from two different viewing positions.
There are two main methods that provide volumetric autostereoscopic image: using the parallax barrier and lenticular lens.
The parallax barrier, in fact, is another additional integrated LCD screen with a grid of vertical opaque stripes that obscure the light from the lamp on those or other pixels depending on the viewing angle. This technology thanks to a layer of liquid crystals allows you to switch to the usual two-dimensional mode.
When using biconvex lenses, the light is directed to a certain observation zone, which allows each eye to see a different image at the optimal distance.
Note that if earlier it was a question of two-parallax systems, then in new solutions, images are already viewed from nine directions.
So Toshiba Integral Imaging technology, developed on the basis of a system of microlenses from liquid crystals, provides the ability to form a frame in nine angles, similar to stereo card. The lens, located in front of nine pixels reflected multiple times, directs the viewer's gaze to one of them, which one depends on the angle of view. Thus, in accordance with the angle of view, the overall three-dimensional image is added. In addition, if earlier the viewer had to keep his head within a certain angle from the panel, now the panel itself adjusts the normal viewing range to match the position of the viewer.
Most recently, Toshiba introduced a prototype tablet computer equipped with a 12.1-inch touchscreen display and a six-axis accelerometer that monitors the movement and tilting of a laptop.
Source: https://habr.com/ru/post/114090/
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