標題: The generation of biaxial optical anisotropies in polyimide films by an uniaxial stretch method
作者: King, JS
Whang, WT
Lee, WC
Chang, LM
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: liquid crystal display;viewing angle;biaxial retardation film;stretch;polyimide
公開日期: 1-May-2006
摘要: A new biaxial-retardation film prepared from the uniaxial-stretched polyimide (PI) film was developed for compensating the viewing angle of liquid-crystal displays. A new aliphatic PI showing high transparence and low glass-transition temperature was firstly prepared for the biaxial-retardation film purpose. Both retardations in x-y and x-z planes of PI films were highly increased after stretching them uniaxially at 260 degrees C. Good uniformity of birefringence in well-stretched PI films was observed visually with two crossed polarizers. The birefringence variations of nx-ny (difference of refractive indexes between x- and y-axes) and nx-nZ during the stretching process were highly affected by PI structure.
URI: http://dx.doi.org/10.1143/JJAP.45.L501
http://hdl.handle.net/11536/12288
ISSN: 0021-4922
DOI: 10.1143/JJAP.45.L501
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS
Volume: 45
Issue: 17-19
起始頁: L501
結束頁: L504
Appears in Collections:Articles


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