How iZ3D Display Works

iZ3D Vision Technology

iZ3D is based on polarized light to create images for left and right eye viewing. This is achieved on two precisely stacked TFT LCDs (Front + Back). Left eye and right eye images are addressed and controlled simultaneously. However, they are not assigned to separate panels, unlike the Pavonine LCD. the front TFT LCD controls the polarization angle of the transmitted light performing left and right eye image exclusion by dynamically changing the polarity of each pixel. The back TFT LCD displays the full color L+R video composite. This output mode is achieved by the iz3d software 3D Driver.

iZ3D updates the images 60 times per second. However, the change to the required polarization angle is performed sub-pixel by sub-pixel. That means that for 1680 x 1050 resolution, up to 600 million sub-pixels are reoriented every second for each image frame change. The polarizer films on the back LCD panel determine the polarizer axis of the light as it enters the front panel. Using liquid crystal's inherent polarizing characteristics, the liquid crystal of the front panel redirects the entering polarized light, according to degree of the liquid crystal twist. To control the liquid crystal twist, an electrical field is applied. Varying the electric field, sub-pixel by sub-pixel, results in polarization angle changes for each sub-pixel.

The specific liquid crystal material in iZ3Ds changes the polarization angle anywhere between 45 degrees and 135 degrees. The polarized light differences achieved by the front panel can only be seen with linear polarized glasses that have 45 degrees axis for the left eye and 135 degrees axis for the right eye. Polarized light intensity at angles between 45 degrees and 135 degrees is proportionally shared by both eyes. For example, at 45 degrees, the left eye will see 100% of the light and the right eye will see 0%. Since left and right images are seen at the same time, at 90 degrees both eyes will see the same image with the same intensity. Therefore, at 112 degrees 25% light is directed to the left eye and 75% is directed to the right eye. This method of simultaneously addressing, controlling and displaying left and right eye images creates flicker-free images for comfortable prolonged 3D viewing enjoyment.

Displaying iZ3D Images

To display an image on the iZ3D monitor in 3D, the following is required:

• Hardware
• Windows PC
• Graphics Card with two outputs
• iZ3D Monitor and iz3d software driver

Stereo Drivers

The stereo driver intercepts the data stream prior to the video card and adds stereo camera information and the iZ3D algorithm. This information enters the Video card and it is rendered into left and right images. Still in the Video card, the iZ3D algorithm transforms the left and right image data into back and front images. With this process all games that are Direct X 8 and 9 based can be played on iZ3D monitors.

In iZ3D monitors the 3D image characteristics are user adjustable. The adjustments let the user select optimum conditions for specific viewing preferences, which are primarily related to convergence, parallax and image plane. Adjustments will result in image plane changes for out of screen and into screen position, and in parallax adjustment for scene depth and viewing comfort optimization.

 

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