DYNAMIC ANALYSIS AND STRUCTURAL IMPROVEMENT FOR THE BEZEL OF LCD TV

• Main Authors: Yen-Chung Chen, 陳彥仲
• Other Authors: Yii-Mei Huang
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/f9rtt9

碩士 === 國立中央大學 === 機械工程研究所碩士在職專班 === 94 === The main purpose of this thesis is to study the vibration problem of a TFT-LCD TV caused by the sound of the loudspeaker and to look for the solution for reducing the corresponding noise due to resonance. Since the TV bezel couldn’t be totally constrained with the TFT-LCD panel, it will collide with the TFT-LCD panel and emerge the vibration when the loudspeaker shakes. This thesis regards LabVIEW as the interface of signal analysis and signal processing to acquire the signal of the impact hammer and the accelerometer on every measure points of the TV bezel. By the signal processing of LabVIEW to acquire the frequency responses and find out the position where the maximum occurs. Finally, the design of TV was modified based on the measurement data. The frequency response of the TV set was improved and the associated noise was also reduced.