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(Click for frequent words.) 73 LTPS 73 temperature polysilicon LTPS 69 LTPS LCD 68 LTPS TFT LCD 67 LTPS TFT 65 projected capacitive touch 65 film transistor TFT 64 brightness light emitting 64 active matrix OLED 64 diode OLED display 64 TFT LCD module 64 temperature polysilicon HTPS 64 Diode OLED 63 Diodes OLED 63 Organic Light Emitting 63 amorphous silicon TFT 63 Si TFT 63 epiwafers 63 color STN LCD 63 Microdisplays 63 AMLCD 62 Organic light emitting 62 amorphous silicon Si 62 diode AMOLED 62 active matrix OLEDs 62 ferroelectric liquid crystal 62 #Hz LCD 62 Samsung SDI Co 62 diodes HB LEDs 61 AMOLEDs 61 Active Matrix 61 TFT displays 61 STN LCD 61 transistor LCD 61 OLED organic 61 TFTs 61 #.# inch XGA 61 voltage CMOS 61 Microdisplay 61 passive matrix 61 Diode AMOLED 61 organic electroluminescent 61 Si TFT LCD 60 SMD LED 60 SXGA resolution 60 electron mobility 60 Gallium Arsenide GaAs 60 oxide semiconductor 60 temperature polysilicon TFT 60 passive matrix OLEDs 60 SVGA #x# 60 Diode OLED display 60 LCD liquid crystal 60 HTPS panels 60 Sanyo Epson 60 OLED Organic 60 resolution microdisplays 60 CIGS solar 60 indium gallium phosphide 60 transistor LCDs 60 Amorphous Silicon 60 PenTile 60 transparent conductive 60 passive matrix OLED 60 inch WXGA 59 InGaN 59 CIGS copper indium 59 CSTN LCD 59 #.#th generation 59 VGA LCD 59 Amorphous silicon 59 PMOLED 59 k gate dielectrics 59 SiPix 59 organic electro luminescence 59 AlGaAs 59 diodes LEDs 59 OLED panels 59 driver IC DDI 59 OLED XL 59 Gallium Arsenide 59 color TFT LCD 59 #/#.#-inch [001] 59 Exmor R 59 monocrystalline wafers 59 inch WUXGA 59 OLED displays 59 WXGA #x# 59 Thin Film Transistors 58 AMOLED displays 58 diode OLED displays 58 magnetron sputtering 58 epi wafers 58 Sharp Aquos LC 58 nitride semiconductor 58 BLUs 58 Pictiva 58 resistive touch 58 density interconnect HDI 58 LCoS TM 58 AMOLED 58 multijunction solar cells 58 TFT LCD 58 OTFT 58 crystalline Si 58 AMOLED panels 58 epitaxial wafers 58 amorphous TFT LCD 58 Oled 58 capacitive touch panels 58 phosphorescent OLED technology 58 Transmissive 58 diode OLED 58 Vizplex 58 CCFL backlighting 58 TFT LCD modules 58 AMOLED display 58 PHOLED lighting 58 Wafer Level Camera 58 diode displays 58 Grand WEGA 58 BrilliantColor ™ 58 OLED microdisplay 58 monolithically integrated 58 GaN LEDs 58 diodes OLED 58 glass substrate 57 CNT FED 57 ZnSe 57 transistor arrays 57 transmissive LCD 57 Liquid Crystal Display 57 LCDs 57 LED backlights 57 LCD panels 57 X ray microscopy 57 Diodes OLEDs 57 efficiency mono crystalline 57 BrilliantColor 57 BCDMOS 57 twisted nematic TN 57 indium tin oxide ITO 57 WUXGA 57 Plane Switching IPS 57 VGA TFT LCD 57 LED backlit LCD 57 amorphous silicon 57 Silicon LCOS 57 AMLCDs 57 Neo PDP 57 microbolometer 57 LED backlight 57 NeoPDP 57 ™ phosphorescent OLED 57 Giantplus Technology 57 OLED AMOLED 57 #x# pixel resolution [003] 57 LED backlighting 57 CMOS imager 57 film transistors TFTs 57 DLP RPTV 57 OEL panels 57 Gallium Nitride 57 WSVGA 57 sunlight viewable 57 UV2A 57 matrix liquid crystal 57 wire resistive touch 57 LCD backlight 57 PDPs plasma display 57 HTPS 57 glass substrates 57 resistive touch panels 57 backlit LED 57 UXGA 57 Cells CICs 57 multicrystalline wafer 57 #k pixel 57 LCD 57 Copper Indium Gallium 57 CMOS wafer 57 LED backlight LCD 57 Copper Indium Gallium Selenide 57 BrightView 57 LCD TFT 57 multicrystalline 57 Kameyama factory 57 CMOS Sensor 57 CCD sensor 56 optical zooms 56 Yageo Corporation 56 RGB LED backlighting 56 Optical Shutter TMOS 56 Capacitive touch 56 sunlight readable 56 medium sized LCDs 56 SuperBright 56 inch diagonal LCD 56 gallium nitride GaN 56 Stylus Pro # 56 light emitting polymer 56 CIGS Copper Indium 56 electronic viewfinders 56 Auria Solar 56 DLP Projector 56 monocrystalline silicon 56 NL#BC# [002] 56 diode OLED panels 56 inch SVGA 56 backlight module 56 VIERA Plasma 56 CMOS sensors 56 transflective color 56 WXGA 56 Plasma Displays 56 LCOS 56 Light Emitting Diode 56 lumen brightness 56 Thin Film Line 56 transparent electrodes 56 transparent electrode 56 GaAs solar 56 Bravia LCD 56 Time Multiplexed Optical Shutter 56 matrix LCDs 56 super twisted nematic 56 HEMTs 56 PhlatLight LED 56 diodes OLEDs 56 Exmor 56 TFT liquid crystal 56 Capacitive 56 EH R# 56 Multimedia Projector 56 Thin Film Transistor 56 SXGA + 56 Vertical Cavity Surface Emitting 56 TFT LCD display 56 backlight modules 56 g accelerometers 56 TPV Technology Limited 56 transflective 56 efficiency Gallium Arsenide 56 brightness LED 56 Kameyama plant 56 TMOS display 56 optically coupled 56 SXGA 56 Gunze 56 #cd m 2 56 transflective TFT 56 AlGaInP 56 E Ink Vizplex 56 FLCOS 56 OEL screens 56 Transmeta Crusoe processor 56 Varitronix 56 CIGS solar cells 56 nanoimprinting 56 gallium nitride 56 8MP sensor 56 Transflective 56 FP#V 56 #.#x zoom lens 56 crystalline PV modules 56 BrilliantColor TM 56 emissive 56 K dielectrics 56 poly crystalline 56 eyescreen 56 D#U 56 LCD Liquid Crystal 56 InGaP HBT 56 electroluminescent displays 56 F#.# lens 56 #,#:# contrast ratio [003] 56 widescreen LCD display 55 CCFL backlight 55 Indium Tin Oxide 55 E Ink Triton 55 timing controller TCON 55 microdisplays 55 backlit liquid crystal 55 4X optical zoom lens 55 QXGA 55 #x# LED backlit 55 microbolometers 55 luminous efficacy 55 Novaled AG 55 WXGA + 55 nanometer CMOS 55 scanning backlight 55 #.# micron CMOS 55 #/#.#in 55 5Mpixel 55 SOI CMOS 55 LCD backlights 55 copper indium gallium diselenide 55 X tal Reflective 55 widescreen TFT 55 6G LCD 55 #x# WVGA 55 LED Backlight 55 laterally diffused metal 55 OLEDS 55 #x# pixel [003] 55 PenTile RGBW technology 55 Plasma Display 55 LCOS liquid crystal 55 vari angle 55 Lithium Ion Li Ion 55 transmissivity 55 gigabit Gb NAND flash 55 #:# dynamic 55 transmissive LCDs 55 microdisplay 55 CIGS photovoltaic PV 55 OLED 55 Qualcomm mirasol 55 diode lighting 55 multicrystalline solar cells 55 sapphire substrate 55 k dielectric 55 de interlacer 55 AlInGaP 55 nm CMOS process 55 projected capacitive 55 displays LCDs 55 #K pixel 55 inch measured diagonally 55 #.#in TFT LCD 55 LCDs liquid crystal 55 #nm CMOS [001] 55 RGB LED 55 #nm laser [002] 55 Amoled 55 HP BrightView 55 PHOLED 55 PLC XP#L 55 inch LCDs 55 AccuSync 55 megapixel CMOS image 55 LED BLUs 55 microwave integrated circuits 55 electrophoretic 55 transmissive 55 LED backlit LCD TVs 55 solar photovoltaic cells 55 SMD LEDs 55 EXILIM Engine 55 transistor HEMT 55 di selenide CIGS 55 CIGSe 55 Micromorph 55 Megapixel CMOS 55 transparent conductive electrodes 55 SYL# 55 monocrystalline silicon wafers 55 polycrystalline 55 #x#p [001] 55 #nits 55 Chi Mei Optoelectronics CMO 55 crystalline solar 55 #.#in TFT [002] 55 multicrystalline silicon 55 eMagin OLED 55 Image Sensor CIS 55 Acer CrystalBrite 55 SVGA resolution 55 Cold Cathode Fluorescent Lamp 55 pixel CMOS 55 BOE Hydis 55 photoresists 55 Shanghai SVA NEC 55 Leica Dicomar lens 55 CMOS Image Sensors 55 Solibro 55 DMC LS2 55 backside illumination 55 #.#x Optical Zoom 55 LiNbO3 55 WQVGA 55 micromirror 55 Plane Switching 55 nano patterning 55 EMCCD 55 #Wp 55 inch TFT LCD 55 optical coatings 55 indium gallium arsenide InGaAs 55 Toshiba Matsushita 55 purity silicon 55 TPK Touch Solutions 55 WUXGA #x# 55 Wide XGA 54 GaN substrates 54 transflective display 54 LCD module LCM 54 #x# pixel [001] 54 Sintek Photronic 54 CIGS PV 54 CMEL 54 V#W [002] 54 Gallium Nitride GaN 54 Epson 3LCD technology 54 CyberDisplay #K 54 Cold Cathode Fluorescent Lamps 54 CrystalBrite 54 Passive Matrix 54 Gildas Sorin CEO 54 3CCD 54 antireflective 54 CCD imagers 54 micro electro mechanical 54 XBRITE 54 carbon nanotubes CNT 54 multi crystalline silicon 54 3LCD projection 54 Hz refresh rate 54 QVGA LCD 54 poly Si 54 Schneider KREUZNACH lens 54 organic photovoltaics 54 glossy widescreen 54 micro optics 54 DNIe 54 OLED Displays 54 RPTVs 54 BIONZ processor 54 multicrystalline silicon solar 54 calls Time Multiplexed 54 Epson Toyocom 54 indium gallium nitride InGaN 54 Eizo Nanao 54 inch XGA 54 wafer bonder 54 TruBrite 54 heterojunction 54 DarkChip 54 Poly Silicon 54 #.#μm [002] 54 organic light emitting 54 GaAs pHEMT 54 PIN diodes 54 TFT LCDs 54 Schottky Diodes 54 IPS Alpha 54 DIGIC 54 BiCMOS 54 TFT 54 .# micron 54 photovoltaic PV module 54 Simitri 54 inch AMOLED 54 OptiML 54 crystalline silicon c 54 solar cells 54 inch OLED 54 X ray detector 54 Exmor R CMOS sensor 54 Flat Panel Displays 54 diode LED 54 #X# [003] 54 EMP TW# [002] 54 inch widescreen LED backlit 54 #/#.#-inch [002] 54 diode OLED lighting 54 #K#K 54 ePaper display 54 UV inkjet printer 54 8G LCD 54 matrix LCD 54 sunlight readable LCD 54 Super CCD EXR 54 #/#.#-inch CCD [001] 54 MT#P# 54 Ultrabright 54 quartz plates 54 transparent conductive films 54 monocrystalline modules 54 organic TFTs 54 CCFLs 54 HannStar Display 54 PicoP display engine 54 GaN wafer 54 OLED screens 54 CMOS silicon 54 PANEL# 54 #x# WXGA 54 WXGA display 54 Eizo Nanao Corporation 54 QVGA VGA 54 XG P#X 54 Ultra Wide Angle 54 BenQ MP# 54 hydride vapor phase 54 Indium Phosphide InP 54 Chunghwa Picture Tubes CPT 54 optically bonded 54 Kobierzyce near 54 DEV DA TOMAR NEXT 54 Edison Opto 54 String Ribbon TM 54 OSTAR ® 54 SVGA 54 Toshiba Matsushita Display 54 solar concentrator 54 inch SXGA 54 performance solar encapsulants 54 Epson DURABrite 54 silicon LCOS 54 mirasol 54 Toppoly Optoelectronics 54 electrophoretic display 54 UXGA #x# 54 copper indium gallium selenide 54 multijunction 54 surface conduction electron 54 Aquos LC 54 transparent conductive coatings 54 CameraChip 54 #p LCD TVs 54 VIERA plasma 54 environmentally friendly alkali aluminosilicate 54 flexible substrates 54 grayscale E Ink 54 Mpixel 54 CMOS Image Sensor 54 #cd m² 54 Complementary Metal Oxide Semiconductor 54 Polycrystalline 54 CSTN 54 Image Sensor 54 nm CMOS 54 Rear Projection HDTV 54 epitaxy HVPE 54 electroluminescence 54 crystalline silicon photovoltaic 54 organic electroluminescence 54 voltage MOSFETs 54 capacitive touch controller 54 S#D# 54 #x# TFT 54 touchscreen LCD 54 photovoltaic module 54 #:# contrast [001] 54 PJ# 54 nonpolar GaN 54 WLED display 54 voltage differential 54 Pixtronix 54 #dpi resolution [001] 54 Epson EMP 54 lithium rechargeable batteries 54 antireflection 54 CCFL backlights 54 SyncMaster 54 daylight viewable 53 gallium selenide 53 rollable display 53 Quad Pixel 53 Samsung SDI Co. 53 pixel density 53 inch Super Amoled 53 CIS CIGS 53 RGB LED backlight 53 MB#K# 53 4ms response 53 PLED 53 thin bezel 53 W1I 53 Sony Exmor R 53 ԁ іѕрƖау 53 silicon photovoltaic PV 53 #Hz refresh rate [001] 53 Driver ICs 53 concentrated photovoltaic CPV 53 Image Processor 53 PHOLED materials 53 solar photovoltaic PV modules 53 SyncMaster #T 53 ANSI lumen 53 widescreen WXGA 53 Optoma HD# 53 Electron Mobility Transistor 53 multilayer ceramic capacitors 53 #D/#D switchable 53 CdTe solar 53 MegaPixel 53 ACEIY 53 Digital Camera Introduction 53 × #mm [002] 53 Exmor ™ 53 solar photovoltaic modules 53 #x# pixel resolution [001] 53 LCoS 53 DMC LZ7 53 stereo codec 53 CMOS RF CMOS 53 #x# pixel [002] 53 KODAK EASYSHARE V# [002] 53 #.#in WXGA 53 Pico projector 53 silicon substrates 53 #PX# 53 hermetic packaging 53 #.#mm thick [002] 53 Tessera Licenses 53 XGA SXGA 53 #p DLP 53 multicrystalline silicon cells 53 monitors ruggedized CRT 53 #in TFT 53 S#C# 53 silicon microdisplays 53 CMOS Silicon 53 ClearVid CMOS sensor 53 LCD displays 53 WEGA Engine 53 laser diode modules 53 LED Backlit LCD 53 defect densities 53 #.# micron node 53 3LCD projector 53 #/#.# inch CCD 53 #nm NAND Flash 53 Corporation Nasdaq KOPN 53 #μm thick [002] 53 GaN HEMT 53 InGaAs 53 InGaP 53 CoolPAM 53 CIGS solar cell 53 Willcom D4 53 controller ICs 53 #x# pixel [005] 53 Honda Soltec 53 inorganic light emitting 53 Tekcore 53 Plasma Display Panel 53 LCoS televisions 53 polymer capacitors 53 Toppan CFI Taiwan 53 widescreen LCD monitor 53 inkjet printing systems 53 Curved Display 53 photomultiplier 53 Quattron 53 vari angle LCD 53 #/#.# inch 53 OLED display 53 WXGA TFT 53 DLP Projectors 53 SXGA + resolution 53 TSMC TAIEX 53 Widescreen Monitor 53 SA SFT 53 #nm #nm [002] 53 LWIR 53 #nit 53 String Ribbon solar 53 crystalline photovoltaic 53 LCOS microdisplay 53 High Brightness LED 53 XBR models 53 phototransistors 53 HyperCrystal II 53 ClearFrame 53 XGA TFT 53 photodetectors 53 CMOS imagers 53 liquid crystal display 53 solar PV module 53 VR Vibration Reduction 53 #,#,#:# contrast ratio [002] 53 Super HAD CCD 53 AMOLED screen 53 High Voltage CMOS 53 SOI substrates 53 Nitto Denko Corp. 53 #:# widescreen LCD 53 Tessera OptiML 53 lumen projector 53 BrilliantColor technology 53 LCD touchscreen 53 #,#,#:# contrast ratio [001] 53 definition widescreen LCD 53 Texas Instruments BrilliantColor 53 nit brightness 53 #.#μ 53 photomasks 53 Philips LCD 53 indium phosphide InP 53 Nova NanoSEM 53 warmest insulator 53 Motionflow #Hz 53 Syncmaster 53 optical waveguides 53 aspheric optics 53 Wintek Corp 53 VA#w 53 LCD Displays 53 #K pixel CCD 53 Formosa Epitaxy 53 QCIF + 53 InSb 53 MPR# [001] 53 amorphous silicon solar 53 silicon germanium SiGe 53 PHEMT 53 phosphors 53 inkjet inks 53 Avancis 53 millimeter silicon wafers 53 Panasonic VIERA Plasma 53 QMEMS 53 silicon photovoltaic modules 53 monocrystalline polycrystalline 53 AU Optronics Corp 53 LedEngin 53 cold cathode fluorescent 53 electron optics 53 inch diagonal LED backlit 53 LED backlit screen 53 pigment ink 53 electrophoretic displays 53 inkjet printhead 53 capacitive multitouch display 53 Si substrates 53 solvent inkjet printers 53 UA SFT technology 53 monolithic microwave integrated 53 III nitride 53 film photovoltaic TFPV 53 polycrystalline solar 53 PIN photodiodes 53 narrow bezel 53 still cameras DSCs 53 String Ribbon 53 FlexScan 53 Zoom NIKKOR lens 52 #in LCD TV 52 LCD backlit 52 pixel QVGA 52 Ltd LDK LDK 52 SiGe bipolar 52 Exmor APS HD 52 Local Dimming 52 Digital Camera Announced 52 display panels PDPs 52 near infrared NIR 52 LED backlit 52 WQVGA screen 52 Panasonic TH 52 VCSELs 52 #k dot 52 color laser MFPs 52 transreflective 52 Luminus Devices Inc. 52 fiber reinforced thermoplastic 52 pixel VGA 52 ANSI Lumens 52 Foveon X3 52 leadframes 52 laser multifunction printer 52 Nitto Denko Corporation 52 QVGA resolution 52 BRAVIA LCD 52 Resistive touch 52 engineered substrates 52 Giantplus 52 layer ceramic capacitor 52 Olevia LCD HDTVs 52 WLED 52 Pixel Plus 52 lamps CCFL 52 hetero junction 52 UV lasers 52 HiColor 52 AMVA technology 52 opto electronic 52 photoelectric conversion 52 Liquid Crystal 52 GaN transistor 52 SLT A# 52 Telephoto Zoom Lens 52 #nit brightness 52 #/#.#-inch optical format 52 #nm CMOS [002] 52 #.#um CMOS 52 diode HB 52 imagePROGRAF iPF# [001] 52 SANYY 52 multilayer ceramic 52 4x optical zoom lens 52 mono crystalline 52 micron pixel 52 LC#D#U 52 E Ink Pearl 52 VGA TFT 52 circuit MMIC 52 KDL #S# 52 DLP ® 52 HD TruBrite 52 Display SMD 52 InN 52 #cm diagonal 52 AM OLED displays 52 aluminum nitride 52 Toshiba TruBrite 52 #LX# [002] 52 Flatron 52 iridix 52 ZUIKO DIGITAL ED 52 BIONZ image processor 52 XGA resolution 52 diode backlighting 52 opto electrical 52 Widescreen Display 52 SiC substrates 52 autostereoscopic 3D 52 ISO sensitivities 52 Vmedia optical drives 52 #.TWO 52 megapixel CCD sensor 52 light emitting diodes LED 52 Silicon Germanium 52 #Hz #p 52 Epitaxial 52 Fluorescent Lamp 52 Corp 奇美 电子 52 WSXGA + 52 Nikkor lens 52 LCOS Liquid Crystal 52 MT#F# 52 Holtek Semiconductor 52 smc Pentax 52 resistive touch panel 52 Lextar 52 daylight readable 52 megapixel imager 52 DIGIC DV II 52 fast 8ms response 52 Arima Optoelectronics 52 efficiency monocrystalline silicon 52 PhlatLight 52 3x optical zoom lenses 52 FPDs 52 silicon ingots 52 nano composites 52 LCOS panels 52 inch widescreen panels 52 4K projector 52 Exmor CMOS sensor 52 LED BLU 52 antireflective coating 52 #:# aspect 52 TFT backplanes 52 transflective LCD 52 f ENGINE 52 Flat Panel Display 52 Sony ICX# 52 #Hz LED 52 inkjet printers UV 52 1Gbit DDR2 52 PIN diode 52 Schneider Kreuznach Variogon 52 motherglass 52 CMOS imaging 52 Innolux 52 dye sensitized solar 52 fabless IC 52 AlN 52 Megapixel sensor 52 active matrix electrophoretic 52 FLD glass 52 方式 52 Coretronic 52 aluminum electrolytic capacitors 52 units BLUs 52 mirasol display 52 high voltage BCDMOS 52 liquid crystal 52 IGBT Insulated Gate 52 mono crystalline silicon 52 GOT #T 52 KODAK KAF # 52 photoluminescence 52 dye sensitized 52 monocrystalline 52 KDL #NX# 52 Jetrion ® industrial 52 cadmium sulphide 52 amorphous silicon modules 52 AU Optronics AUO 52 Daxon Technology 52 mono crystalline solar 52 ArF immersion lithography 52 3CCD camera 52 Visual Enhancement 52 Sony KDS R#XBR# 52 Pico Projector 52 GaN HEMTs 52 SiON 52 HMX E# 52 CMOS fabrication 52 deep ultraviolet DUV 52 Embedded NVM MEMS 52 VLED#wm 52 DLP HDTVs 52 lenticular lenses 52 Lumiramic phosphor technology 52 Displaytech 52 Toppoly 52 capacitive multi 52 #K TFT [002] 52 WVGA resolution 52 sunlight readable touchscreen 52 flexible OLED displays 52 TL M# 52 MEMS gyroscope 52 Multimedia Projectors 52 PRO #HD [001] 52 tuner IC 52 ZnS 52 microelectronic components 52 CMOS 52 backside illuminated CMOS 52 3M Projected Capacitive 52 #.#Mp [002] 52 electron emitters 52 #X# [011] 52 matrix TFT 52 DSC H5 52 amorphous silicon thin 52 Anti Reflection 52 MB#H# 52 sunlight readability 52 Aerosol Jet 52 LCOS projector 52 CMOS transistors 52 cathode materials 52 6ms response 52 Lumix cameras 52 UHB LEDs 52 Panasonic Viera TH 52 Advasense 52 Autostereoscopic 3D 52 Himax Display 52 第二 52 QUALIA 52 BRAVIA XBR 52 LCD Panels 52 #,#,#:# dynamic contrast [001] 52 megapixels 3x optical zoom 52 IDT PureTouch 52 OLED TVs 52 TFT LCD panel 52 IGNIS 52 inch widescreen monitor 52 Power Optimizer DPO 52 Bravia XBR 52 Kopin CyberDisplay 52 Manz Automation 52 #HM 52 WCG CCFL backlight 52 nanometer nm CMOS 52 Wide Color Gamut 52 thinnest LCD 51 XS1 51 FBAR filters 51 lumen LED 51 AlN substrates 51 DCR PC# [002] 51 DFN package 51 #nm node [002] 51 3in LCD 51 #,#:# contrast ratio [001] 51 Liquid Crystal Displays 51 AlGaN GaN 51 TruMotion #Hz 51 cadmium telluride CdTe 51 PECVD 51 DCR HC# [001] 51 GaAs substrates 51 integrated circuits IC 51 SXRD 51 Transparent Conductive Oxide TCO 51 laser diode module 51 Mega Pixels 51 cadmium zinc telluride 51 sapphire substrates 51 multicrystalline cells 51 crystal resonator 51 #.#in TFT [001] 51 3x optical 51 Huga Optotech 51 PureColor LCD II 51 polymethyl methacrylate PMMA