‘’̶ Ǯϸ ġĥ (), (). ȵ , , Ƽ Ư ϴ ִ ϴ , Ȥ Դϴ. ǥ ڷδ (wire grid polarizer) ̻ (dichroism polarizer, 2; ̴ ) . , ϴ Ͽ ϴ ⸦ ֽϴ.
LCD г, ⺻ , TFT Ͽ >>
ڸ Ʈ, TFT Ī ڷν Ư ()ȭҸ ϰ ȣ ִ մϴ. ȭҸ ϴ Ī ڷμ Ʈ ϴµ, ÷̿ Ǹ ƴ Ǹ ڸ Ƿ ڸ ƮͶ . , TFT RGB ȭҵ鸶 ġϿ Ī ϰ ֽϴ.
, TFT LCD 縸ŭ̳ Ǿµ, 1930 1940뿡 CdSe 縦 ̿ TFT ü Ի ڿ ߵǾ, 1972 LCD ϰ . 1970 Ĺݿ Ǹ TFT LCD ǥǸ, ķ ° ٰ Ǹ TFT Ͽ, ֱٿ ȭ TFT, TFT Ȱ ߵǰų ǰ ǰ ֽϴ. ٸ, Ʈ ַ Ǹ TFT Ͽ մϴ.
Ǹ TFT ߿ κ 帣 ä ̸, شϴ Ǹ ݵü Ī ӵ е մϴ. Ǹܺٴ ܰ ü ٰ Ǹ ̵ . , ܰ Ǹ ̵ , Ǵ Ǹ ̸, ȭ ߰ν ٰ Ǹܱ մϴ. ⼭ ‘’̶ ǹ̴ Ǹ ٰ Ǹ ȭϴµ, µ ջ Դ µ ǹմϴ. ٰ Ǹ ũⰡ Ŭ ڰ 踦 浹 ɼ Ƚ پ ̵ ϰ ˴ϴ. Ǹ TFT ̵ 1cm^2/(V sec) ̸, ݸ鿡 ٰ Ǹ TFT ũ cm^2/(V sec) ϴ.
Ǹ TFT зԴϴ. TFT Ʈ ذ ҽ-巹 ݵü 鿡 ġϴ ö(planar) Ʈ ذ, ҽ-巹 ݵü ֺ ġϴ °(staggered) е˴ϴ. , ־ Ʈ ݵü Ȥ Ʒʿ ġ , ̸ Ʈ(top gate) Ϻ Ʈ(bottom-gate) . ̵ Ư鿡 , ̿ Բ Ǹܰ ٰ Ǹ Ͽ ش ÷ Ī ڷν ˴ϴ. , Ǹ TFT ̿ܿ ȭ TFT, TFT, ư 2 ݵü ݼ Įڰ ȭչ(Transition Metal Dichalcogenides, TMD) ̿ TFT , ǰ ֽϴ.
LCD г, ⺻ , >>
‘’̶ Ǯϸ ġĥ (), (). ȵ , , Ƽ Ư ϴ ִ ϴ , Ȥ Դϴ. ǥ ڷδ (wire grid polarizer) ̻ (dichroism polarizer, 2; ̴ ) . , ϴ Ͽ ϴ ⸦ ֽϴ. ̷ ̿Ͽ LCD BLU Ϻ ǿ , Ͽ ǿ ϴ. κ LCD гο 90 Ʋ ֽϴ. ⺻ 1938, ̵ E. H. Land ȵ H ʸԴϴ.
̻ , PVA ʸ ̻ (dichroic dye) Ͽ ϴµ, ̻ Ұ մϴ. Ұ 带 ϴµ ŷڼ Ϻ ϸ, ݴ ŷڵ ɰ ֽϴ. β 300ũ Ұ, ʸ Ǿ ֽϴ. ġϴ PVA(PolyVinyl Alcohol) ʸ ϴ ߿ κ̸, PVA ջ ϱ ȣ ʸ ʿմϴ. ȣ ʸ PVA ʸ ̿ PVAȣ Բ ϴ TAC(Tri-Acetyl-cellulose Film) ʸ Ե˴ϴ. 鿡 PSA(Pressure Sensitive Adhesive) ʸ ǰ ȣ ڸ ڸ(, release, off-type) ʸ .
Ϲ 캸, ó( ), (PVA ó), ð ̳̼(ȣ ʸ, ڸ ʸ ), ܰ ϵ˴ϴ. PVA ʸ ߿ þ߷(1 ø) 迭 PVC ʸ , ϸ鼭 ̿µ ϰ ǰ ʸ ϴ. ̿ ϴ. ܿ ƴ Ḧ ̿ϱ ϸ, ϱ Ͽ ǥ ó ϱ մϴ. , PVA ʸ̳ ȣ ʸ ν (Anti-Glare, AG), ݻ (Anti-Reflection, AR), ݻ(Low Reflection, LR) ó Ͽִ . ν ؼ ݻ, ݻ ؼ ̿. LCD β ̰ ֱ Ͽ µ Դϴ. LCD ۵ 忡 ǿ ȭ ֽϴ.
LCD г, ⺻ , ⸷>>
⸷(alignment layer)̶ ‘ 迭ϴ ’̶ , ڵ Ư ġ ĵǵ ϴ Դϴ. ⸷δ ַ ̵̹ Ǹ, ̴ µ, ģȭ, ǰ ϱ Դϴ. ⸷ β Դϴ.
TFT ǰ ÷ ο ⸷ (rubbing) ϸ ⸷ Ȩ . ̿ ä ʿ ġ ⸷ Ȩ ڸ , ڵ ̿ Ͽ 迭 ˴ϴ.
̷ ̰, ܿ ȭ ֽϴ. , ڿܼ ϴ 縦 ⸷ ϸ, ڿܼ ڵ մϴ. ̸ ؼ ⸷ ڿܼ 뱤 ġ ʿϰ . Ŀ , ջ ּȭ ִٴ ֽϴ. ̿ Բ ⸷ ʿ ʴ ֽϴ.
̿ Ȯ ̷ ϰ Ǿ ʽϴ. ٸ, ǥ ȭ ȣۿ, ǥ ؼ ؼϰ ִ . ǥ Ư ⸷ Ǵµ, ⸷δ (Polyimide) Ͽ ϰ ֽϴ.
LCD г, ⺻ , ÷ >>
÷ (color filter) Ͽ ö ȭ 3, (R) ʷ(G), Ķ(B) Ͽ ÷ ֵ ϴ Դϴ. ϸ鼭 ϴ Դϴ. , ÷ ÷ Ͱ Ǿ ִ Դϴ.
÷ RGB ÷鰣 ֱ Ʈ(Black Matrix, BM) , ̸ ̿ ΰ ÷ ϴ RGB 迭˴ϴ. , Ʈ RGB ȭҵ ݸŴν, 鿡 ʿ (crosstalk) Ͼ ϰ, ηκ Ϻ Ű, ܺηκ TFT ԻǴ ִ ҵ մϴ. ַ ̿ ٰ ũ , ܿ ī ̳ ٸ ݼ ȭ ϱ . ȭҵ 迭 Ÿ(delta) 迭, ũ(mosaic) 迭, Ʈ(stripe) 迭 еǸ, , ÷ , ȸ 鿡 ̵ ȥ ɿ ֽϴ.
, ÷ ʹ ϴ 뿪 Ȯ Ѽ ϸ, Һ Ͽ մϴ. NTSC Ѿ ϸ, ܿ ܺ ̳ Ͼ ʾƾ ϰ, ȭ ϸ ʾƾ մϴ. ̿, ÷ Ŀ Ǵ ģȭ ־ ϸ, ݰ 꼺 Ǿ .
÷ ῡ ȷ(pigment) (dye) ִµ, Ǵ ‘ȷ л’, ߽δ İ (photolithography)Դϴ. , ÷ Ʈ ϰ ũ ̿Ͽ 뱤 ̾ , RGB ÷ Ʈ ݺմϴ. ÷ Ʈ ϴ δ Ѹ ȸŰ , ó ̿ ü 鿡 ϴ (slit) , ֽϴ. (electrodeposition) , ȷ ſ л Ȥ ؽŰ ؿ شϴ ǥ鿡 , Ű Դϴ. μ , RGB ũ μϴµ, μ, ũ μ, μ, ũ μ մϴ. Ͽ 꼺 ο , ̳ Ȧ, ũ , , е Ѱ Դϴ.
÷ OC(Over Coat) ִµ, ̴ ȣ ȭ ϰ, ļ κ ÷ ȣϴ ϸ, ̿ Ͽ ǥ źȭ(planarization)ϴ ۿ뵵 մϴ. ַ ũ , ̵̹ Ȥ 췹ź 簡 ̿˴ϴ. OC ITO ڸ õǾ , TFT ǰ 쿡 ǰ ϰ ִ CS(Column Spacer) ġǾ ֽϴ. LCD , Ȥ г ÷ ǰ TFT (sealant) Դϴ. ̿ ä . LCD гο BLU ȸκΰ , , LCD Ѿϴ.
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“ ְ ظ ϰ , ο ڷ پϿ ǥ , ٶϴ.”
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