In order to improve ease of disassembly and recycling of a product at its retirement stage, it is essential to design a product architecture that allows for easy disassembly and recycling. In this paper, a novel concept of eco-architecture is introduced, and the eco-architecture analysis, a design approach supporting the end-of-life decision making process, is proposed. The eco-architecture is the product architecture described from the end-of-life (EOL) viewpoint, in which a product is represented as an assembly of end-of-life modules. Not only does it prescribe an EOL strategy, but it also gives information about the connections and arrangement among EOL modules. Therefore, understanding the eco-architecture is helpful in enhancing the disassembly and recycling capabilities of an architecture design. The proposed eco-architecture analysis supports architecture improvement; it helps designers to derive the most desirable eco-architecture which entails the optimal end-of-life strategy. It also facilitates the extraction of meaningful redesign guidelines which make it possible to improve an architecture in an efficient and effective manner.

This is the first report on real XGA AMLCD for NBPC with highly stable integrated gate driver circuits using a-Si TFT. The new circuit has been designed with dual-pull down structure for high reliability and has been working for over 2,000 hours at 60 o C, which is sufficient working time for normal driving conditions.

A novel gate driver circuit using a-Si TFT has been developed. It has AC driven single pull-down structure for maintaining gate line voltage. Degradation of the circuit is retarded because of relieved stress to the pull-down TFT by alternating the gate node voltage. The circuit has been successfully integrated in 14.1-in. XGA TFT-LCD panel.

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