反射显示技术的研究进展
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摘要
反射显示具有超低功耗、高照度条件下易读性好、易于实现柔性、价格低廉等特点,广泛应用于各显示领域,包括电子纸、电子指示牌、电子货架标签、可穿戴显示等。特别是户外环境下使用的显示器件,对低功耗、高照度条件下易读性等有着显著的需求,因而反射类显示得到了快速的发展。为了更好地进行反射类显示的技术开发与推广,本文系统分析了3种主流的反射类显示技术,详细地阐述了3种主流反射类显示核心技术、显示原理与方案,并从显示从业者的角度对反射类显示技术的开发现状及发展进行了思考。
With the characteristics of low power consumption,readability in the sun,flexible,cheap,reflective display has been widly used in many areas,including e-paper,electronic directional signboard,electronic shelf label,wearable display,and so on,especially the displays used in the outdoor environment urgently demand the properties of low power consumption and readability in the sun.Thus,the reflective displays get rapid development.In order to develop and promote the reflective display better,three types of the mainstream reflective displays wers investigated systematically,including the core technology of reflective display,the principle and the scheme,and the development present situation.The development trend were proposed from the angle of the practitioners of display.
With the characteristics of low power consumption,readability in the sun,flexible,cheap,reflective display has been widly used in many areas,including e-paper,electronic directional signboard,electronic shelf label,wearable display,and so on,especially the displays used in the outdoor environment urgently demand the properties of low power consumption and readability in the sun.Thus,the reflective displays get rapid development.In order to develop and promote the reflective display better,three types of the mainstream reflective displays wers investigated systematically,including the core technology of reflective display,the principle and the scheme,and the development present situation.The development trend were proposed from the angle of the practitioners of display.
引文
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[27]HUANG Y P,LIN F C,WU S I,et al.Mechanism and improvement of charged-particles transition in microcup electrophoretic displays[J].Journal of Display Technology,2013,9(8):619-625.
[28]LU Y H,TIEN C H.Colorimetric characterization of monochromatic microcupelectrophoretic display[J].SIDSymposium Digest of Technical Paper,2011,42(1):1548-1551.
[29]SPRAGUE R A.Active matrix displays for ereaders using microcup electrophoretics[J].SID Symposium Digest of Technical Papers,2011,42(1):365-368.
[30]WU S I,LIN F C,HUANG Y P,et al.Electrokinetics of charged-particles in microcup electrophoretic displays[J].SID Symposium Digest of Technical Papers,2011,42(1):1559-1562.
[2]凌志华.STN-LCD技术的发展[J].液晶与显示,2002,17(4):233-242.LING Z H.Progress of STN-LCD technology[J].Chinese Journal of Liquid Crystals and Displays,2002,17(4):233-242.(in Chinese)
[3]HEILMEIER G H,ZANONI L A.Guest-host interactions in nematic liquid crystals.A new electro-optic effect[J].Applied Physics Letters,1968,13(3):91-92.
[4]HUANG K C,LEE Y H,LEE W.Reflective displays based on dye-doped bistable chiral-tilted homeotropic nematics[J].Molecular Crystals and Liquid Crystals,2015,617(1):100-106.
[5]HWANG G.The improvement of polymerization characteristics for reflective dye-doped polymer dispersed liquid crystal(PDLC)display[J].Advanced Science Letters,2012,18(1):225-229.
[6]LIN Y H,YANG C M,LIN Y R,et al.Reflective type polarizer-free flexible displays using dye-doped nematic liquid crystal gels[J].SID Symposium Digest of Technical Papers,2008,39(1):1830-1832.
[7]CHEN H S,CHIANG T H,WU C H,et al.A reflective polarizer-free display using dye-doped polymer-stabilized blue phase liquid crystals[J].SID Symposium Digest of Technical Papers,2011,42(1):1667-1670.
[8]WEST J L.Polymer-dispersed liquid crystals[J].ACS Symposium Series,2014,435:475-495.
[9]VARANYTSIA A,CHIEN L C.Bimesogen-enhanced flexoelectro-optic behavior of polymer stabilized cholesteric liquid crystal[J].Journal of Applied Physics,2016,119(1):014502.
[10]CHEN J W,KUO Y Y,WANG C R,et al.The formation of supramolecular liquid-crystal gels for enhancing the electro-optical properties of twisted nematic liquid crystals[J].Organic Electronics,2015,27:24-28.
[11]TAO D,YAO L S,CHIGRINOV V,et al.Single cell gap single mode TN transflective liquid crystal display[J].SID Symposium Digest of Technical Papers,2010,41(1):1794-1795.
[12]LI Y W,FAN-CHIANG K H,WANG C T,et al.Fast-response reflective TN mode with enhanced contrast and reflectance[J].SID Symposium Digest of Technical Papers,2010,41(1):1720-1723.
[13]BENI G,CRAIGHEAD H G,HACKWOOD S.Refractive index switchable display cell:US,US4411495A[P].1983-10-25.
[14]孙志文,谢二庆,韩卫华,等.电润湿的研究进展[J].液晶与显示,2008,23(3):387-392.SUN Z W,XIE E Q,HAN W H,et al.Progress of electrowetting[J].Chinese Journal of Liquid Crystals and Displays,2008,23(3):387-392.(in Chinese)
[15]PARK D J,KWON S G,YANG J S,et al.Electrowetting display device and manufacturing method thereof[J].2016,22(3):401-405.
[16]YI Z C,SHUI L L,WANG L,et al.A novel driver for active matrix electrowetting displays[J].Display,2015,37:86-93.
[17]ROGHAIR I,MUSTERD M,VAN DEN ENDE D,et al.A numerical technique to simulate display pixels based on electrowetting[J].Microfluidics and Nanofluidics,2015,19(2):465-482.
[18]LO K L,TSAI Y H,CHENG W Y,et al.Recent development of transparent electrowetting display[J].SIDSymposium Digest of Technical Papers,2013,44(1):123-126.
[19]CHARIPAR K M,CHARIPAR N A,BELLEMARE J V,et al.Electrowetting displays utilizing bistable,multicolor pixels via laser processing[J].Journal of Display Technology,2015,11(2):175-182.
[20]RAWERTJ,JEROSCH D,BLANKENBACH K,et al.Bistable D3 electrowetting display products and applications[J].SID Symposium Digest of Technical Paper,2010,41(1):199-202.
[21]ZHAO Q,TANG B,BAI P F,et al.Dynamic simulation of bistable electrofluidic device based on a combined design of electrode and wettability patterning[J].Journal of the Society for Information Display,2018,26(1):27-35.
[22]BLANKENBACH K,JENTSCH M,BITMAN A,et al.Recent improvements for applications of droplet-driven electrowetting displays[D3][J].SID Symposium Digest of Technical Papers,2009,40(1):475-478.
[23]SONG J S,KIM Y C.Evaluation of driving properties by cell-gap difference of single particle-microcapsule type electronic paper[J].Journal of the Korean Institute of Electrical and Electronic Material Engineers,2015,28(8):518-523.
[24]CHEN S H,WANG S R,BIAN S G,et al.Improved preparation technology of Urea formaldehyde microcapsules used in electrophoretic display[J].Advanced Materials Research,2009,79-82:381-384.
[25]SONG J K,KANG H C,KIM K S,et al.Microcapsules by complex coacervation for electronic ink[J].Molecular Crystals and Liquid Crystals,2007,464(1):263/[845]-269/[851].
[26]李国相,孟舒献,冯亚青.彩色双粒子微胶囊电泳显示的研究进展[J].化工进展,2015,34(S1):131-136.LI G X,MENG S X,FENG Y Q.Research Progress of color particles microcapsulated electrophoretic display[J].Chemical Industry and Engineering Progree,2015,34(S1):131-136.
[27]HUANG Y P,LIN F C,WU S I,et al.Mechanism and improvement of charged-particles transition in microcup electrophoretic displays[J].Journal of Display Technology,2013,9(8):619-625.
[28]LU Y H,TIEN C H.Colorimetric characterization of monochromatic microcupelectrophoretic display[J].SIDSymposium Digest of Technical Paper,2011,42(1):1548-1551.
[29]SPRAGUE R A.Active matrix displays for ereaders using microcup electrophoretics[J].SID Symposium Digest of Technical Papers,2011,42(1):365-368.
[30]WU S I,LIN F C,HUANG Y P,et al.Electrokinetics of charged-particles in microcup electrophoretic displays[J].SID Symposium Digest of Technical Papers,2011,42(1):1559-1562.