Photonic crystals in biology - NanoTR-VI

PPPPPPPP,PPPoster Session, Thursday, June 17Theme F686 - N11231Liquid Crystal Displays (LCD) Role in Different Aspects in Social LifeSönmez ArslanP1,2 345*, Ömer PolatP P, S.Eren San PPSelahattin SönmezsoyP PandP PRamazan Kaynak 6PDepartment of Materials Science Engineering, Nanotechnology Center,Gebze Institute of Technology, Kocaeli,41400, Turkey2PDepartment of Chemistry, Batman University, Batman ,72100, TurkeyPDepartment of Sience, Bahcesehir University, Istanbul, 34353, TurkeyPOrganic Electronics Group, Department of Physics, Gebze Institute of Technology, Kocaeli,41400, Turkey5PDepartment of Sociology, Batman University, Batman ,72100, Turkey6PDepartment of Management,Gebze Institute of Technology, Kocaeli,41400, Turkey43Abstract- Social, economical, and environmental effects of Liquid Crystal Displays(LCD) which have been using widely in televisions,computers, mobile phones, cameras, video cameras, bill boards were discussed. The periods before and after introducing of LCDs were comparedin terms of Energy, Information Technology ,Communication Technology, Environment, and Social Life. Advantages of LCDs were explaineddepending on development of Nanotechnology in displays. LCDs’latest position was evaluated.………………………………………………………………………………………………………….In the begining of 1960s Liquid Crystal Displays (LCDs)have entered to our life. When we go back to 1970s LCDshave been observed in calculators and watches[1]. They hadonly black and white displays at that time. LCDs helped somuch in daily life comparing with mechanical wristwatch andabacus in those years depending on that technology. LCDsimportant role in social life, starting to development beginningfrom primitive technology to Nanotechnology, have beenincreasing day by day. At present, LCDs are involved inhuman life in different aspects such as communication,information technologies, entertainment, cultural and artisticactivities.abFigure 1. a) Early wrist watch(1960s) b) Black-white LCD in watchIn view of energy and usage, TV screens made of LCDsexhibit low energy consumption with respect to televisionsproduced by Cathode Ray Tube(CRT). This situation makesLCDs more advantages to televisions made of CRT. Forinstance, televisions made in small size with LCDs can beused with low voltage (around 10 Vs). So even a couple ofbatteries are capable of usage of LCD TV.[2] This caseenables us to use TVs with LCDs in a wide range of places(without electrical sources) which we can never have thischance to use TVs with CRT.In point of information technologies, mobility feature ofLCDs have shown in movable computers such as laptops.Low energy consumption concept, decrease in size andincrease in mobility have made our life much easier bycomputers produced with LCDs such as laptops as mentionedabove than desktop computers.[3] With the help of LCDtechnology improving of laptops, today, access to informationand usage of laptops are possible in every single moment ofdaily life.Importance of LCDs in communication technology hasoutcome with progressing of mobile phones[4]. Beforeintroducing mobile technology to our life, regular phones wereplaying partially role. Entering with mobile communication toour life, communication put into effect in every moment ofdaily life. Improvement of LCDs technology has been playingmost important role in progressing of mobile phones.In point of environmental aspects of LCDs we see that:LCDdoes not emit that much of radiation compared to televisionwith CRT. When we compare them regarding emittingradiation, radiation emitted with sight almost approaches tozero in LCDs which leads to positive effect on environmentalpollution and human health. All displays with LCD like TV,computer compared to displays with CRT has been helping usin terms of environment and human health.[5]When we consider LCDs in view of social aspect, we cantell that they occupy important role. Starting from crowdedentertainment places and shopping centers and places whereoffical services are served, on deck of ferries, at ports, onpublic and private transportations etc., by serving LCDs is ansignificant indicator of LCDs that they have played veryeffective role in social life. Besides, nanotechnology hasbrought a new perspective to advertising sector by introducinggiant size of LCDs resuls in activity and new dimention incommercial life.To sum up, replacing TVs with CRT with LCD technologythe world has started a new period considering energy saving,economy, environment and social communication. It is notdifficult to say from now on that the role and impact of LCDsin our rotuine life will be more effective as nanothechnologydevelops and become a piece of our lives.*Corresponding author: HTarslanso@gyte.edu.trTH[1] Castellano J. A. , Liquid Gold: The Story of Liquid CrystalDisplays and the Creation of an Industry, World ScientificPublishing, Singapore, 2005.[2] M.T.Chena, C. C. Linb, Int. Jrn of Industrial Ergonomics, 34,167–174 , (2004)[3] A. Dhir, The Digital Consumer Technology Handbook, NewnesPublications, U.S.A. (2004)lic[4] D. Mentley, “Miniature display market and technology trends,”presentedat the Flat Information Displays Conf., Monterey, CA, Dec. (1998)[5] M. L. Socolof , J.G. Overly, J.R. Geibig, Jrn. of CleanerProduction, 13, 1281-1294, (2005)6th Nanoscience and Nanotechnology Conference, zmir, 2010 811