Etching Effects of Blended Polyimide Layers for Liquid Crystals

Autor:	Hong Gyu Park, Hae Yun Jeong, Young Hwan Kim, Jeong Hwan Kim, Dae Shik Seo, Young Gu Kang, Tae Kyu Park, Jeong Min Han, Hee Jun Lee, Byoung Yong Kim, Seok Jeong Yang
Rok vydání:	2011
Předmět:	Liquid-crystal display Materials science Anchoring General Chemistry Condensed Matter Physics law.invention Rubbing law Etching (microfabrication) Liquid crystal Thermal General Materials Science Composite material Layer (electronics) Polyimide
Zdroj:	Molecular Crystals and Liquid Crystals. 550:51-56
ISSN:	1563-5287 1542-1406
Popis:	This paper introduces a novel alignment method for control of pretilt angles in liquid crystals (LCs) using an etchant dipping effect on a mixed polyimide layer as an alternative alignment layer for liquid crystal display applications. A rubbing process was used to induce LC alignment and induce the measured LC pretilt angle on the etchant dipped mixture layer. The resulting thermal stabilities were good, however thermal stresses decreased as the etchant dipping time increased, indicating that the LC anchoring energy became weaker as a function of etchant dipping time after treatment. Excellent voltage-transmittance characteristics for vertically aligned cells were observed for all conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d484042c54ecfa839b80aa69b698d44e https://doi.org/10.1080/15421406.2011.600209 Zobrazit plný text záznamu