EPA-102-HA14-03-A199

102

2,700 千元

2013/01/25

2013/12/31

王家祥

回收基管會

張紹欣

毅泰管理顧問股份有限公司

廢棄物管理

液晶面板;再利用價值;廢液晶顯示器回收處理

LCD panel;recycling value;waste LCD recycling

廖林詮

王家祥

02-29533596#601

jackie.w27@gmail.com

本計畫執行期間為2013年1月25日至2013年12月31日，調查、蒐集近5年國內外廢液晶顯示器回收處理現況及基線資料，發現不論國內外液晶顯示產品已成為市場主流，市佔率高達90%以上，我國公告應回收之液晶監視器、筆記型電腦及液晶電視等液晶顯示產品，每年製造、輸入量超過400萬台，而液晶顯示產品自1993年筆記型電腦應用開始，就有相關產品進入市場，依調查文獻指出其平均報廢年限為7年。經實際拆解發現，廢液晶顯示產品中含有大量可再利用的有價金屬及塑膠物質，而目前液晶面板(約占10%)仍多採用掩埋處理，並無法有效再利用。另為確認液晶面板中內含組成，本計畫透過重金屬檢測過程計測出11項金屬物質及微量有機化合物。綜上分析，這些廢液晶顯示產品具有極高的再利用價值，若未妥善回收處理，除造成資源浪費外，也會有大量的垃圾問題。 調查分析國外近年來液晶顯示器創新研究文獻資料，發現國外著手針對廢液晶收集、銦錫氧化物回收、面板玻璃與偏光膜再利用技術進行研究，其中銦錫氧化物(ITO)之純化、精煉為主要研究重點。再者，進一步調查國內外（美國、歐洲、大陸、日本、歐盟及韓國等）商業化或實廠化相關文獻，顯示國外無將廢液晶面板之液晶分離的技術，係以一般廢棄物處理，且處理成本高於我國現行掩埋及物理處理費用。 綜上評估後，本計畫提出具體可行廢液晶及廢玻璃基板分離技術，係採用財團法人工業技術研究院開發之連續式液晶萃取系統，可將廢液晶面板之液晶與玻璃基板完全分離（液晶回收成效達99%以上）。該試驗系統包含7項設備，經過實際運作後，已完成廢液晶面板每日處理250公斤之技術試驗線。 依據上述階段性之試驗成果，於102年10月30日完成1場次「廢液晶面板創新處理再利用技術研討會」，邀請與廢液晶顯示器技術相關上、中、下游產官學界之專家學者參與。對於技術試驗線之成果，與會人員多給予高度評價，且部分業者對於液晶分離回收技術深感興趣，表示此技術具開發價值，有投入經費提升技術設備之意願。 102年度試驗線成果已可將液晶與面板完全分離，為開啟廢液晶顯示產品高附加價值的再利用技術，本計畫103年將跳脫廢玻璃只能再利用於製磚之傳統思維，並考量國內市場可行規模，規劃開發廢玻璃基板高值化再利用技術。本計畫接下來將持續進行廢液晶面板材料的創新再利用技術開發及推廣，開創高附加價值資源化產品的通路。

液晶面板;再利用價值;廢液晶顯示器回收處理

EPA-102-HA14-03-A199(公開版).pdf

4MB

2014/5/1 上午 12:00:00

During the execution of this project, we have already finished investigating the current status of waste liquid crystal display (LCD) recycling and baseline during nearly five years. We found out that LCD products had become mainstream which share more than 90% market. The LCD produces, include LCD monitors, notebook computers and LCD TVs, annual manufacturing more than 4 million units In Taiwan. Since 1993, Notebook came out and began to use the LCD. According to the survey literature indicates that the life-cycle was 7 years. Based on the dismantling result, there could produce a lot of reusable metal and plastic, but the LCD panel (about 10%) still disposal by landfill. Through TCLP testing, we found out the LCD monitor include 11 kinds of metals, and trace amounts of organic compounds. Because the waste LCD product has a high recycling value, if it won’t be recycled that will not only waste resources, but also cause lots of garbage problem. Investigating the current foreign LCD innovative research literature, we found the ITO recycling technology was the mainstream. Surveying the foreign literature, we find out 13 LCD monitor treatment plant. The results show that all the plant only focused on mercury element (CCFL) recycling, and never recycled LC. In addition to comparing different treatment technologies, the LC collection process has more economic than others, so the project decided to focus on the liquid crystal recovery and development the LCD panel separation testing line. After analysis, we propose the feasible waste LCD panelseparation technology. The LCD panel separation testing line is using the ITRI's patent, which uses solvents to extract and collect the LC from the surface of LCD panel. The testing line could make all of the LC separate from LCD panel, and through detect the LC was no more residues. The testing line includes seven units. After practice, the test line has completed treatment 250 kg of waste LCD panel daily. We held an announcement campaign and invite specialist, recycle enterprise and LCD Manufacturers to participant at the end of October. All of the participants against the LCD panel disposal by landfills, and interested in this new LCD recycling technology.All of the participants gave high marks, and some of them were interested in this new recovery technology, and said if this technology had the development value, there was willingness to enhance the technical equipment. After the process of LCD panel separating, the LCD panel glass can be used as raw material of various glass products.Next year, this project will focus on material recycling technology develop and promoting which come from waste LCD panel, and create high value of recycled products.

LCD panel;recycling value;waste LCD recycling