FMEA Application Research On TFT-LCD Product Evaluation Process

FMEA, a popular precaution, firstly applied in the field of cosmonautics, then widely applied in industrial production, has made a great success. TFT-LCD is a burgeoning industry in China. FMEA application is still under promotion. As the last and propulsive stage of TFT-LCD new product R & D, product evaluation business is of great importance in FMEA application. This thesis mainly studies the TFT-LCD product evaluation process. Product evaluation quality will decide new product quality and product R & D speed directly during TFT-LCD new product development. Widely existing problems for product evaluation are rather long product evaluation period; poor prediction for unqualified products; slow speed and bad effect of quality improvement; poor quantity production after evaluation. Aiming at those problems, this thesis suggests adopting FMEA technology during product evaluation and designing product evaluation process after using FMEA.This thesis has illustrated design FMEA and process FMEA respectively, product evaluation department will establish FMEA team with production, technology and development departments, provide FMEA training and introduction, select first term FMEA subject, finish design FMEA and process FMEA analysis by combining detailed design and technics improving process, find a series of problems, put forward improvement suggestion and implementation plan based on RPN evaluation, and then track the implementation effect.Finally, this thesis summarizes the actual application result of FMEA, illustrates it from direct and indirect benefit respectively. We can draw a conclusion that using FMEA tool is very helpful for ameliorating problems in product evaluation, which is of good economic benefit.