OLED, , >>
İ , LCD ÷(TFT) ǰ ÷ ϴ , ȭ İ մϴ. OLED TFT ÷ , OLED ڸ ϰ ȭ İ . İ ġ ϼ˴ϴ.
OLED ȭ BLU ʿ , , IC(Integrated Circuit) ȸΰ ̺긮 μ ȸ (Flexible-Printed Circuit Board, F-PCB) Ű OLED ϼ˴ϴ. 캸 ǰ 꼺 Ͽ پ ȭ . Ϸʷ ġ ġŰ (add on-type), (on cell-type), (in cell-type)ε е.
OLED, ̽ >>
ݱ OLED 뿡 Ͽ , OLED ̽ ٷ մϴ. ̸ Ͽ , (, ź ), , õ , ̾ ϸ, ڸ ̾ õ Դϴ.
÷̵ ߿ OLED ſ Ůϴ. Ư, OLED . ü µ ߿, Ϻ Ͽ , ǰ ȭ Ǵ Դϴ.
OLED Ǵ δ öƽ ְ, ذ ᰡ ֽϴ. ̿ Ͽ ̷ ڿ , , ߱, , ᰡ ʿϰ . 쿡 ÷ Ʈ Ϳ 簡 ʿϱ մϴ. OLED κп , Ŀ öƽ ġ˴ϴ. ̳ ټ 鵵 ֽϴ. Ư ٽ Ǵ OLED ڿ 翡 ؼ ռ, ‘OLED, ڳ’ ٷ, پ 鿡 ؼ ϱ մϴ.
ִ ÷(flexible display)δ OLED, LCD, EPD(ElectroPhoretic Display) ֽϴ ٸ, η , ȭ öƽ OLED е մϴ. ռ Ͽ ÷̴ η縶 ۵Ǹ, öƽ ʸ TFT ÷ ϰ, ÷̴ OLED, ڸ ϴ 찡 ̻Դϴ. öƽ OLED, OLED ʿ .
(flexibility) 뼼 ϰ . (rigid) (conformable) ̾ ߰ ܰԴϴ.
, ٲ ũ⸦ ٲ . θų , ݰ(Radius of Curvature, RoC) Ÿϴ. ڸ η ‘’ RoC 뷫 7mm Դϴ. Ϲ ִ(bendable) 쿡 7mm , ִ(rollable) 쿡 5mm, ִ(foldable) 쿡 1mm 䱸մϴ.
, öƽ OLED ʰ Ǵ κеδ öƽ , ÷ΰ , ߱ , , ڸ , Ŀ öƽ ֽϴ. , ̵̹ ٴϽ öƽ ʸ ȯϿ մϴ. ݼ ŷ Ʈ , ݰ , źȭ ʿ伺 ġ ʴ մϴ. ÷ LTPS-TFT ȭ TFT 꼺 Ȯ Բ TFT Ͽ . ÷̺δ OLED̾ и, ػ Բ ȵ õǾ մϴ. , ̰ о ڸ Ȯ Ǿ .
ġ ũ ݰ , ̴ (add-on) ڸ ġ ϴ ٷ (on-cell) ȯǰ (in-cell LCD ), ƴ϶ Ǵ 鼭 Ŀ ۶ Ŀ öƽ, ̵̹(Colorless PolyImide) ȯǰ ֽϴ.
, Ŀ öƽ 浵 ָ ϱ Ͽ Ŀ ۶ ſ ʹ (Ultra Thin Glass, UTG) 뵵 õϰ . (encapsulation) ĵ̳ , ̺긮 ȭ˴ϴ. ̴ ȭ . , ü ʿϿ, Ŀ ⸷ ⸷ ִ ߰Ǹ ˴ϴ. ̻ ؼ ռ ٵ ְ, ε ȸ ̸, Ư ߿ ٽ ذ ڸ ̾߱⸦ ̾ մϴ. , ķ ǰ ÷ ̾߱⸦ ذ Դϴ.
OLED , ñ ݺ ڿ ؼ Ư Ͽ մϴ. ƾ ϴµ, ϰԵ ݴ Դϴ. ̸ (trade-off)̶ . ȭ Ÿ ϰ ˴ϴ. ̿ Բ ݰ 꼺 ߿. ߵ , ITO ϰ ϴ ǰ ݺ ڰ ӿ ũ , Ҿմϴ. δ ݼ (metal mesh) 뼱 ռϴ.
뼱 ϴ ϴ. 뼱 ӻ , ǥ ĥ 뼱鰣 (interconnection) . ذ Ͽ 뼱 ε ƿ ȭ(Indium-doped Zinc Oxide, IZO) ڸ ̺긮 ȵǾϴ.
IZO 뼱 ȭκ ȣϰ 뼱鰣 , ǰ ȭŰ ϸ, ǥ ĥ⸦ ̰ ̴µ մϴ. ̷ ̺긮 Ͽ OLED ȿ Ͽ Ǿ.
õ 뼱鿡 Ұ(light sintering) ģ , PVB(PolyVinyl Butryal) ħ, Ѽ 뼱 Ἲ, , ǥ ź Ų ֽϴ. , (electrospinning) ̿Ͽ Ʈ ʿ ʰ ̿ ̹ Ͽ ŷ ְ ǥ ź õǾϴ.
뼱̳ ̹ ϴ , ؿ ߰ ǰ ϱ ӵ Ǵܵ˴ϴ.
ܿ ڿ ź Ʃ, 2 ɼ ִ ĺ ǰ ֽϴ. ̵ , (), , ŷڼ ǥǴ ǵ Ű Ͽ ǰ ֽϴ. ̿ Ͽ Բ 꼺, ģȯ漺 .
ź(stretchability), ༺ ִ OLED, 䵵 ü оߵ õ ϰ ִ , , ε ʿ ð Ǿ ֽϴ.
, (rigid) (fixed curvature), ڸ θ (edge-type), ְ(rollable) ִ(foldable) ÷ ģ ༺ ִ(stretchable) ÷.
ְ, ü ýۿ ɼ Ÿ . Z ü ༺ ִ ÷̿ Ư㸦 Ȯϰ , ñδ Ǻ (skintronics) ȯ Դϴ. , ̸ ÷, ź TFT ̿ OLED Ȱϸ, 2017 ༺ ִ OLED ǰ ÿDZ Ͽϴ.
<۱ڨ 'öƽ̾' - .>
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