NEC LCD Technologies has successful developed a 12.1-inch (31 cm diagonal) amorphous-silicon thin-film-transistor (TFT) colour liquid crystal display (LCD) module that enables naked-eye viewing of stereoscopic images. Featuring horizontal double-density pixel (HDDP) structure, the company’s proprietary pixel array for stereoscopic displays, this module enables users to view high-density stereoscopic images without special 3D glasses.

The HDDP structure is composed of horizontally striped RGB colour sub-pixels; each pixel consists of three sub-pixels that are striped horizontally and split in half lengthwise. As a result, horizontal resolution is double that of 3D LCD modules constructed with vertically striped pixels, and 3D images are produced through data for the right eye and data for the left eye being alternately displayed horizontally by pixel. 2D images can also be displayed when the same data is presented for adjacent pixels. Since the LCD module can display both 3D and 2D images at the same resolution, it can display a mixture of 2D and 3D images simultaneously on the same screen without causing discomfort to viewers.

Recently, 3D-based media content has been gaining popularity and demand for 3D images has been growing for a variety of applications, such as amusement equipment, digital signage and industrial CAD, medical image analysis and other equipment.

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