ڹ߱- ÷̵>>
̸ ϴ EPD ÷ , LCD ̿ܿ , ̳ ̿ؼ ÷̷μ õϰų, ɼ ڹ߱ ÷̵ ֽϴ. Ư, о߿, EPD ̿ܿ MEMS DMS(Digital Micro Shutter), ÷(Interferometric Modulator Display, IMoD) ÷(ElectroChromic Display, ECD), ÷(ElectroWetting Display, EWD) ֽϴ. MEMS ÷̵鿡 ؼ ڸ ̾ ٷ , ECD EWD , ڹ߱ ÷̵ ߿ MEMS о߿ ʴ ϰڽϴ.
ECD , ÷̺ٴ Ʈ 쿡 Ȱ Ǵ ڷν, ϴ Ʈ ÷̷α Ȯȴٸ , ÷ ǰ. , ΰϿ ȭ ȯ ϰ, ̸ ȭ ¸ ȭ ǥϰ ˴ϴ. ̴ 3 絵 , Ͽ ð ȿ ִ ȿ ־, ǥ ÷ ĺ ϰ ֽϴ.
EWD 忡 Ͽ ǥ Ҽ(hydrophobic) ģ(hydrophilic) Ư ִ , (Electrowetting) ̿ ÷Դϴ. ΰϿ ⸧, ⸧(colored oil) Բ ϴ ǥ ȭŰ鼭 ⸧ ϴ Ͽ ǥ, , ȭҿ شϴ ⸦ ǥϴ ۵մϴ. Ȥ ǥ Ʒʿ Į ΰ, ⸧ Ͽ ȭŰ մϴ. Liquiavista ̿ ÷̷ν ߵǾ, Ŀ Z Դϴ. ݲ ַ ̸ , Ȥ ǰȭ Ǿ ڹ߱, ÷̵ Ͽϴ. Ʈ嵵 ذϴ. Ư, ̴ dz ̸ ô븦 ѳ , о߰ ٸ Ȱ ų ִ , ÷ ֽϴ. ̿ܿ Ʈ ̴ Ʈ ٸ ɰ Ư¡ ÷̷μ ɼ Ůϴ. DZ⸦ Ͽ ϴ. ̷ 鿡 ؼ ϴ ̾߱⸦ Ǯ ڽ ϴ.
ũ ÷ ̾߱ >>
ũ ÷̴ ̳ ̿ϱ ȭ ũ 1ġ , , ػ ÷Դϴ. ̴ ʿ 迡 ̸ Ȯ ǥϿ ϹǷ, ȭ ũⰡ ſ ۾ƾ ϰ, ȭ κ , , (aperture ratio) Ŀ ϹǷ ̼ ġ Ī ڸ ʿ մϴ. ũ ÷̷ν پ , , ε Ȱ ÷̴ MEMS ÷ 迭 ó(Digital Light Processor, DLP), LCD 迭 ٰ Ǹ TFT LCD(High-Temperature Poly-Silicon TFT-LCD, HTPS TFT-LCD) LCoS(Liquid Crystal on Silicon), OLED 迭 OLEDoS(OLED on Silicon) ֽϴ.
DLP ̱ TI(Texas Instrument) ߵǾ, 20 Ĺݺ ó 忡 Ǿ, ֱٿ ̸ پ ýۿ ǰ . ̴ TI ü ̼ ſ (Digital Micro-mirror Device, DMD) а Բ ȭ ÷ Դϴ. , ̿峪 LED DMD ϰ, ̷ Ǹ鼭 ũ ˴ϴ. ϳ ϰ, RGB 3 Į Ͱ ִ ȸϿ Į ϴ İ 3 DMD 3 Į ͵ ̿Ͽ RGB Բ ϴ ֽϴ.
HTPS TFT-LCD Ī TFT ߿ 1000 ̻ µ (amorphous) Ǹ ȭ(recrystallization)Ͽ ū (crystal grain) ٰ Ǹ , ̵ Ų Դϴ. TFT ũ 鼭 Ī ӵ ־, ũ ÷ . ȸ Ĩ ֺ ȸε ÷ ȭ ־, SoD(System on Display) ֽϴ. HTPS TFT-LCD µ ÷ Ƽ ƴ ̿Ͽ߸ ϹǷ ũ , öϴ.
LCoS, ‘Ǹ ’, ״ Ǹ ۿ ÷(backplane) , LCD ÷Դϴ. HTPSٵ ̵ ܰ Ǹ Ʈ ְ, SoD մϴ. ȭ, ̵, ӵ . ٸ, Ǹ ۰ ϹǷ κ ĸ (TFT ) ʿ ͼ (Į ) , , LCD ϴ Ұϰ, ͼ ĸ ʿ ݻǾ ٽ ݻ θ ֽϴ. Ǹ ݵü ݵǾ Ѵٴ δ㵵 , Ǹ ÷ Ŀ帮 ü ̸ ٰ LCoS ϼϴ Ը ÷ ȸ鿡 ȸ ֱ մϴ.
OLEDoS ״ ‘Ǹ OLED’Դϴ. ܰ Ǹ ÷ ū ػ, ӵ, SoD մϴ. ٸ, OLED ȸ , TV Ը Ȯ ǰ ÷̸ 뷮 ϴ ̶ ҷ ǰ شϴ OLEDoS ܸ ϴ. , OLED ڹ߱ Ư, ȭ ⸦ ϸ ũ ÷ о߿ ũ ȣ ڸմϴ. ̿ Բ ũ LED ũ ÷ ĺ ϸ, 캸 ϰڽϴ. ̷ ũ ÷̵ ÷̷δ ÷̷ν, ǰ ̿ , 뵵 ް Ȯǰ ֽϴ.
MEMS ÷ ̾߱ >>
MEMS (ݵü) , , Ͽ ~ ũũ ǰ ý , ϰ ϴ ½ϴ. ȭ Ͽ, ȭ, ȭ, ŷȭ, ȭ ̷ ִٴ . , ݵü ̿ϹǷ ϰ ־ ȭ ϰ, Ĩ ȣ ó ȭ ־ -ŷڼ , -ٷ ֽϴ. ȭ, ȭ, ȭ κ , , ǰ̳ ý۵ ߱ϴ ǥ ŭ, MEMS 뵵 Ƿ پϸ, ̿, , װ, κ, ÷ ־ , ǰ, ý ϱ ٽ μ ǰ ֽϴ.
MEMS ÷, , MEMS ÷̿ ַ Ǵ پ ȿ, , (interference), (refrac-tion), ݻ(reflection), ȸ (diffraction), ư (photonic crystal) ȿ Ͽ Ư , ϴ Ͽ, ۵մϴ. ̸ 1980 翡 ̸ پ ÷ ڵ ߵǾų õǾ Դµ, Ư õ ̸ ()ǰ̳ Ұմϴ. ϴ, ۵ Ͽ , ̿ IMoD , ݻ縦 ̿ DMD DLP , ȸ ̿ GLV(Grating Light Valve) ǥԴϴ. ̿ Ͽ MEMS DMS, ̿ ÷ ǥ ٰ ֽϴ.
, IMoD ʼ ġ(MEMS) ̿ ÷̷ν, ִ ũ , 극 ̷ ǿ ݻǴ ȿ ̿մϴ. , ݻ Ÿ , , Ǹ, ݻ 鰣 Ҹ Ⱑ ˴ϴ. , ǥ 쿡 Һ ־ , - Ư ý ȿ ֽϴ. ̷ ۾ Ī ª ð ̷ . Ŀ Ǿ '̶(Mirasol)’̶ 귣 ̸ ֽϴ.
ݻ縦 ̿ϴ DMD, DLP Ϳ Ǵ ̼ ſ ÷ (ġ) Դϴ. , DMD ʼ ̼ ſ 2 迭 ̸ Ͽ κ ԻǴ θ ȯ۵, ſ ȭҼ , ̿Ͽ Ͽ ̹Ƿ ̶ մϴ. , , ȭ ְ ̺ Ĩ ¿ Ͽ ̷.
Ư, ݻ縦 ̿ϴ 쿡 DLP 2 ̷ DMD Ͽ ij ʿ ĵ , Һ , 淮ȭ Ͽ ̷ 2 ij ϴ , Ϸʷ LSD(Laser Scanning Display), Ȥ RSD(Raster/Retinal Scanning Display) ĵ, Ȥ 迭 ̷ 1 ij ϴ ĵ鵵 ֽϴ. RSD ϱ մϴ.
ȸ ̿ GLV , 1994 ̱ б ȵ , κ Ի ȸ ڸ Ͽ ũ ۵մϴ. δ ̿带 Ͽ, ȸ ڷδ ̼ϰ Ʒ ִ Ǹ Ǹ MEMS Ͽϴ. ŸƮ ó SLM(Silight Light Machine) Ǿ ̾, 2000 Ϻ Ҵϰ ʴ Ϳ õϿ 4 Ŀ LCoS Ʋϴ. SLM E&S(Evans & Sutherland) ϴ , ຸ ̾, , SLM Ϻ ũ(Dainippon Screen Manufacturing Co.) ͼӵ ˷ ֽϴ.
DMS , 2000 ʹ ̱ Pixtronics ߵ MEMS ÷ ν, ĸ Ǵ ʼ ͷ Ͽ ⸦ ǥϿϴ. ̴ LCD ſ MEMS ̿ϴ Ư¡̸, Ư Ȱν ȿ 60% ̻ ø , Ī ӵ 0.1 msec Ͽٴ Ư¡̾ϴ. 2011 Ǿ, ķδ ߰ ǥ ʰ ֽϴ.
ܿ, 3 Ʈν, ÷, Ȧα MEMS ڳ ÷ ǰ , ̴ ȸ ϰ ٷ Դϴ. ϴ , MEMS ڿ ÷̴ ڹ߱ ÷̷ е , ̿ ÷, ػ ÷, ǰ Ƿ ǥǴ ÷, ϰų óϴ پ ū ϰ ͽϴ.
ó(DLP) Ұ >>
DLP Ϳ Ǵ ÷ (ġ) Դϴ. , DMD ʼ ̼ ſ 2 迭 ̸ Ͽ κ ԻǴ θ ȯ۵, ſ ȭҼ , ̿Ͽ Ͽ ̹Ƿ ̶ մϴ. , , ȭ ְ ̺ Ĩ¿ Ͽ ̷. DMD ſ ̵ ӵ Ƿ, 1 DMDε Į ִµ, ̶ Į Ͽ ð RGB մϴ. ٸ, 쿡 Ⱑ 1/3 Ͽ . , 3 DMD RGB Į 쿡 RGB ̸ ļ Į ϰ ˴ϴ. ս ݸ鿡 ũ ݿ δ Ͽ . ܿ DMD 1 RGB 3 ϴ , Ȥ ݴ DMD 3 1, RGB Į 3 ϴ , ֽϴ. DMD Ǹ MEMS ̿Ͽ , ȸκ ġ ſ ۵˴ϴ. ſ +/- 10~12 Ͽ µ, ܺη ͼ ũ ϰų Ȥ ο Ǵ ˴ϴ. ſ 15 ũ 簢 ˷̴ ̸, 1ȸ ݺ ۿ ߵ ϴ. ſ Ʒʿ , ΰ ְ, Ʒ ȸ Ǵ ȸκΰ ֽϴ.
縦 캸, 1987 ̱ TI ߵǾ, TI Ǵ DMD DLP Ƽ, ȸ簡 پ ǰ õϰ, Ͽϴ. ǥ оߴ ó, , ݵü ÷ ұ , TV, Ȧαȿ ǰ, HMD(Head Mounted Display) HUD(Head Up Display) , Ư ӵ Ͽ 3 ÷̿ ֽϴ. MEMS , ǥ ȭ ȮϿ, ǰ ÷ о߿ ο 밡 ˴ϴ.
<ȣ ̾ > “ ְ ظ ϰ , ο ڷ پϿ ǥ , ٶϴ.”
<۱ڨ 'öƽ̾' - .>
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