Hyoung-Wook Jang

7.3: Auto-Stereoscopic Swing 3D Display

We have developed auto-stereoscopic swing 3D display for the first time in the world. It makes us to feel stereoscopically the images of portrait and landscape mode simultaneously by rotating the display. We have designed a black and white liquid crystal display as parallax barrier so that it is convertible electrically between 2D and 3D mode. We have used 2.2″ QVGA AM TFT LCD as 2D imager for mobile application. To improve 3D image quality we have designed and developed the various patterns of liquid crystal barrier and to improve 3D brightness we have designed and developed the new backlight schemes of LCD module.

55.2: Auto-stereoscopic 3D Display Apparatus using Projectors and LC Image-splitter

We have developed a prototype of auto-stereoscopic 3-dimensional display system with 2 projectors and new LC Image splitter. We use two LCD projectors, one for the right and the other for the left stereoscopic image. The polarizations of light from each projector are perpendicular to each other. We specially designed a projection screen comprised of Fresnel lenses, LC image splitter and lenticular lens to separate right and left images for certain ranges of viewing angle.

P‐50: 42‐inch PDP Autostereoscopic 3D Display

We have made a 42-inch PDP autostereoscopic three-dimensional display. A sheet of lenticular lens is placed in front of a 42-inch PDP of full color XGA. The surface temperature of a PDP can be high during its operating times. The pitch of lenticular lens may be expanded. It makes an undesirable problem of deteriorating the 3D image quality. To overcome this problem, we have developed a 3D simulator to design a lenticular lens properly and measured the thermal expansion ratio of the lenticular lens and the surface temperature of the PDP. These two measured values have been used in the design of lenticular lens.