Abstract
In this paper, high images quality switchable two-dimensional (2-D)/3-D display is achieved by carefully matching the high-resolution liquid crystal display (LCD) pixel structure and liquid crystal graded index (GRIN) lens. A parallelogram LCD pixel structure is proposed, in which the edges of each sub-pixels are slanted. At the top of the LCD pixels, the liquid crystal GRIN lens is also tilted to reduce the moire effect and the tilt angle is carefully aligned with the edges of subpixels of LCD. This accurate alignment is useful to eliminate the crosstalk and improves the imaging quality of 3-D display. The 2-D/3-D switchable display is realized by tuning the liquid crystal in the GRIN lens. Based on this, a 3-D display based on 32-inch 8K4K resolution LCD display and Liquid crystal GRIN lens was designed.
Highlights
Lenticular lens are generally used in 3D displays to convert the spatial resolution to the angular resolution [1], [2]
That sub-pixels located at the junction of the lens unit are assigned to more than one lens unit, the light emitted by the sub-pixels at the junction enters two view zones, which causing the crosstalk of the viewpoints [4], [5]
Almost no sub-pixels are divided at the edge of the lenticular lens unit, which reduces the crosstalk of the corresponding sub-pixels
Summary
Lenticular lens are generally used in 3D displays to convert the spatial resolution to the angular resolution [1], [2]. Takaki et al proposed a 3D display technology combining tilted sub-pixels and vertical lenticular lenses [15], [16]. Almost no sub-pixels are divided at the edge of the lenticular lens unit, which reduces the crosstalk of the corresponding sub-pixels. A parallelogram structure of pixels is proposed to form a tilted subpixel matrix, and a tilted liquid crystal GRIN lens is designed on top of the liquid crystal display (LCD). The 3D display proposed in this paper has the following advantages: (1) balance the resolution degradation of the 3D image in the horizontal direction and the vertical direction; (2) eliminate the jagged adverse effect caused by the edge of the lenticular lens over the sub-pixel segmentation; (3) eliminate the interference of sub-pixels at the edge of a single lenticular lens to adjacent viewpoint images, thereby achieving crosstalk-free 3D display
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