A low driving voltage with fast response LC-lens by using high resistance material was developed. By implementing the LC-lens as an array structure, it can be adaptively used for multi-function of 3D displays. Furthermore, by combining with coded optical barrier with embedded optical sensors, it can yield 3D air-touch function.
We proposed a virtual 3D-touch system by bare finger, which can detect the 3-axis (x, y, z) information of
finger. This system has multi-wavelength optical sensor array embedded on the backplane of TFT panel and
sequentail devices on the border of TFT panel. We had developed reflecting mode which can be worked by
bare finger for the 3D interaction. A 4-inch mobile 3D-LCD with this proposed system was successfully been
demonstrated already.
The traidational 3D interactive sysetm which uses CCD camera to capture image is difficult to operate on near range for
mobile applications.Therefore, 3D interactive display with embedded optical sensor was proposed. Based on optical
sensor based system, we proposed four different methods to support differenct functions. T mark algorithm can obtain 5-
axis information (x, y, z,θ, and φ)of LED no matter where LED was vertical or inclined to panel and whatever it rotated.
Sequential mark algorithm and color filter based algorithm can support mulit-user. Finally, bare finger touch system with
sequential illuminator can achieve to interact with auto-stereoscopic images by bare finger. Furthermore, the proposed
methods were verified on a 4-inch panel with embedded optical sensors.
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