How does toshiba 3d tv work

Close one eye and take a walk through your home or around the block. Your sense of depth diminishes and the scene flattens out. Open both eyes, and you see your surroundings in stereo, with each eye perceiving everything from a slightly different angle see Fig. Using that information, your brain calculates distance, helping you perceive depth. To create a sense of depth onscreen, each eye sees video shot from a slightly different angle, corresponding to the average distance between human eyes.

In live action, two cameras are used. Old-fashioned 3D movies used color to separate the two images, but current theaters take advantage of polarization, a property of light rays. Though we think of light traveling in a straight line, it can actually wiggle up and down or side to side, or spin in a corkscrew manner. Polarizing filters allow just one type of light to pass. In a theater, the 3D projector uses these filters to project two images, a right-eye perspective displayed with clockwise-polarized light and a left-eye perspective with counterclockwise light.

The audience wears polarized glasses that allow only the proper polarity to reach each eye see Fig. The brain assembles the separate perspectives into a view that resembles real life. These glasses are known as active shutter glasses. As a right-eye video frame flashes on the screen, the LCD over the right eye switches from opaque to clear. At any moment, you see only one perspective, through one eye.

A fish swimming past an underwater camera and a skier racing through the snow towards a camera produced easily discernible depth. It was easier on my eyes than screens that require glasses.

A 3D demonstration at the Sony booth next door, which required glasses, showed a picture that appeared to consist of several layers of flat images, not a 3D picture with depth between the foreground and background.

There were also a few problems. I found it difficult to find a place where the entire picture appeared in focus. As I moved my head to bring the center of the picture into a sharp, 3D image, I found the edges looked a bit blurred. More than any other TV technology, 3D seems to create a wide range of reactions—some love it, some hate it, some get headaches. And using the game mode we managed to get a figure of just 34ms — entirely acceptable for such an advanced TV.

Toshiba also deserves credit for working so hard to make its glasses-free 3D performance better than expected. We test every TV we review thoroughly over an extended period of time. We use industry standard tests to compare features properly. We never, ever, accept money to review a product. Find out more about how we test in our ethics policy. Editorial independence means being able to give an unbiased verdict about a product or company, with the avoidance of conflicts of interest.

To ensure this is possible, every member of the editorial staff follows a clear code of conduct. We also expect our journalists to follow clear ethical standards in their work. Our staff members must strive for honesty and accuracy in everything they do. Founded in , Trusted Reviews exists to give our readers thorough, unbiased and independent advice on what to buy.

Today, we have 9 million users a month around the world, and assess more than 1, products a year. In this article… 1. Verdict 2. Pros and Cons 3. Key Specifications 4. How we tested 5.