Premium
P‐211: Vibration System Design of Smooth Picture Actuator for DLP Projection TV
Author(s) -
Moon YangHo,
Woo KiSuk,
Kim ChangSung,
Lee ChilSung,
Choi DongWon,
Kim JaeKyung,
Park KyoungShin
Publication year - 2006
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.2433147
Subject(s) - actuator , vibration , voice coil , moment of inertia , tilt (camera) , projection (relational algebra) , reliability (semiconductor) , control theory (sociology) , inertia , moment (physics) , power (physics) , computer science , engineering , mechanical engineering , electromagnetic coil , acoustics , electrical engineering , physics , artificial intelligence , control (management) , algorithm , quantum mechanics , classical mechanics
Smooth picture module is operated by vibration to tilt the light from the DMD (digital micro mirror device) of DLP projection TV, which makes the screen of the TV smoother and DMD chip cost lower. To satisfy the vibration characteristics of smooth picture module, it is designed by optimizing moment of inertia, spring constant and damping coefficient, using structural and fluid dynamic simulation that showed a good agreement with experimental data. To reduce the material cost and moment of inertia, engineering plastic is used and the reliability is estimated. A VCM (voice coil motor) type actuator for smooth picture has to satisfy performance requirements such as higher driving force, lower power consumption, and lower cost. The initial design and optimization for VCM was performed using FE analysis. It allowed us to optimize the design of magnetic circuit of the proposed actuator to obtain higher force while maintaining a lower cost.