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http://dx.doi.org/10.5050/KSNVN.2004.14.9.861

Study on Noise Reduction of DLP Front Home Theater Projector  

Jang Dong Seob (삼성전자 디지털미디어 연구소)
Park Chul Min (삼성전자 영상디스플레이 사업부)
Park Dae Kyong (삼성전자 디지털미디어 연구소)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.14, no.9, 2004 , pp. 861-867 More about this Journal
Abstract
For the evaluation of acoustic noise of a DLP projector, vibration and sound characteristics of a DLP projector were studied. The acoustic noise of DLP projector could be classified into three categories, that is, the direct noise from a body of rotation, the air-bone noise generated from turbulence or vortex occurred during cooling process and the structural born noise produced by vibrating elements. Cooling fans and color filter wheel which rotates at 9000 rpm are main causes of acoustic noise induced in DLP projector. Since the structure of an optical module in a DLP projector can be excited by the excessive vibration of a color filter wheel, the structural design for anti-vibration should be considered. To make a reduction of overall acoustic noise, the anti-vibration design and the enclosing structure have been studied and applied to a color filter wheel.
Keywords
Display; Projector; DLP(digital light processing); DMD(digital micro- mirror device);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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