Multi-domain vertical alignment liquid crystal displays with ink-jet printed protrusions

Autor: Seung Hee Lee, Hak Seon Chang, Hee Seop Kim, Se Hyun Lim, Myong-Hoon Lee, Kwang-Un Jeong, Sun Woo Park, Young Eun Choi
Rok vydání: 2012
Předmět:
Zdroj: Liquid Crystals. 39:501-507
ISSN: 1366-5855
0267-8292
DOI: 10.1080/02678292.2012.657697
Popis: For the fabrication of protrusions in multi-domain vertical alignment liquid crystal displays (MVA-LCDs), a series of complicated and expensive photolithographic processes has to be gone through for the wide viewing angles. In this research, we proposed and demonstrated a new manufacturing approach of the protrusion utilising ink-jet printing technology. Parallel lines were ink-jet printed on the substrates and solidified by a subsequent baking process, and then used as the protrusions of MVA-LCDs. The geometric dimensions of the protrusion patterns were optimised by the comparison of experimental observations and computer simulation results. The MVA-LCD cell was fabricated by arranging the protrusion lines forming right angles between the top and the bottom lines, which resulted in cross-line protrusions. Due to the square-shaped geometric arrangement of the protrusions, the vertically aligned LCs formed the symmetric four-domains in the MVA-LCD cell. With the help of a surface polymer-stabilisation tech...
Databáze: OpenAIRE