The 2 Way LCD
In 2007, Samsung showcased the first LCD panel which could operate two independent images on each side of its surface. The LCD product made use of Samsung’s new double gate, thin-film transistor (TFT) architecture. A TFT fate controls the liquid crystal alignment needed to reproduce on-screen images. Samsung’s implementation has two gates that operates on each pixel instead of just one. Thus the screen on front can display different images than the one on the back. Moreover, one of the screens was transmissible, allowing light to pass through, while the other was reflective in nature, throwing back light – this allowed the entire display to operate on just one backlight source. A 2 – way LCD such as this could find its way onto the cell phones of tomorrow.
Something similar, yet completely different was showcased by Sharp towards the end of 2007. Sharp Corporation developed and showcased an LCD TV screen which can simultaneously display two independent images at the same time. Similar to the Samsung’s but different in the detail that both the images are displayed on the same surface! The implantation is such that one particular image is seen visible when the LCD is viewed from a particular angle, while a completely different image is seen from a different viewing angle. Sharp employed a parallax barrier superimposed on an ordinary TFT LCD, to do the trick: the directions, making it possible to show different information and visual content on the same screen at the same time depending on the viewing angle. Such an LCD could find its way next to the driver’s seat – offering one set of information to the driver, like GPS map; and a completely different visual to the passenger, such as a movie.
See Video Of Sharp’s 2 Way LCD Display – Click Here


