Date

Place

Room G (Room 306)
60. Large Area Displays II
August 21, 2015 (Friday)
15:30 ~ 17:05

[60-1]
15:30 ~ 15:55
Title:[Invited] High-Speed LED Displays and its Applications
Hirotsugu Yamamoto (Utsunomiya Univ., Japan), Kengo Sato, Akinori Tsuji, and Shiro Suyama (Tokushima Univ., Japan)
Abstract: Recently, several types of high frame-rate LED displays have been developed to improve performance on 3D displays and interactive user interfaces, including volumetric 3D representations, exercises with video movies, and a new digital signage techniques.3 Conventional information display architecture has a latency problem from video signal input to optical output. In order to overcome the latency problem, we have proposed new architectures for LED display, such as a high-frame-rate LED display with spatiotemporal mapping, smart LED tile (SLT), and column-parallel LED display (CPLD). This paper shows our developments on high-speed LED displays and their applications. SLT integrates sensors, a wireless communication module, a processor, an LED driver, and battery within 5 cm by 5 cm square. SLT can show acceleration, rotation angle, luminance, or sound instantaneously. SLT position can be detected according to electric field intensity of wireless communication. CPLD is composed of LED lines. Each LED line is operated by a microprocessor. The microprocessors operate parallel SIMD (single instruction multiple data). Applications of high-speed LED displays include hand-waving steganography, visualization of acceleration, and free-space 3D interface of AIRR (aerial imaging by retro-reflection) screen by use of our developed high-frame-rate LED display system.?
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