KR102522254B1 - 원편광판 - Google Patents
원편광판 Download PDFInfo
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- KR102522254B1 KR102522254B1 KR1020190050188A KR20190050188A KR102522254B1 KR 102522254 B1 KR102522254 B1 KR 102522254B1 KR 1020190050188 A KR1020190050188 A KR 1020190050188A KR 20190050188 A KR20190050188 A KR 20190050188A KR 102522254 B1 KR102522254 B1 KR 102522254B1
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- South Korea
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- polarizing plate
- film
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- layer
- polarizer
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Abstract
Description
도 2는 반사방지필름의 반사율 스펙트럼을 예시적으로 나타낸다.
도 3은 본 출원의 OLED 장치를 예시적으로 나타낸다.
도 4는 블루 컷 다이를 포함하는 점착제층의 투과율 스펙트럼이다.
도 5는 반사방지필름의 반사율 스펙트럼이다.
도 6은 평가예 2의 반사 시감 평가 결과이다.
도 7은 평가예 2의 반사 시감 평가 결과이다.
도 8은 평가예 2의 반사 시감 평가 결과이다.
반사방지필름 | 최저반사파장 (nm) |
CIE 1976 L*a*b* | 반사율 | ||
L* | a* | b* | R@(550nm) | ||
1 | 400 | 9.66 | 2.16 | 5.91 | 1.07% |
2 | 420 | 8.96 | 2.49 | 5.40 | 0.98% |
3 | 440 | 8.25 | 2.84 | 4.57 | 0.89% |
4 | 460 | 7.57 | 3.15 | 3.40 | 0,81% |
5 | 480 | 6.98 | 3.32 | 1.91 | 0.74% |
6 | 500 | 6.50 | 3.42 | 0.08 | 0.67% |
7 | 520 | 6.18 | 3.48 | -2.11 | 0.63% |
8 | 540 | 6.05 | 3.46 | -4.66 | 0.60% |
반사방지필름 |
위상차 필름 |
점착제층 | 발광 white 투과색 변화 (OLED on) |
OLED 패널 반사색 (OLED off) | ||||
b* | 위상차 (nm) | 투과율 (430nm) |
△xy | Y (D65) |
R@ (550nm) |
a* (D65) |
b* (D65) |
|
실시예 1 | 5.91 | 144.0 | 43% | 0.006 | 1.59 | 1.26% | 2.73 | -7.37 |
실시예 2 | 5.40 | 144.0 | 43% | 0.006 | 1.50 | 1.17% | 2.99 | -7.94 |
실시예 3 | 4.57 | 144.0 | 43% | 0.006 | 1.42 | 1.08% | 3.25 | -8.65 |
실시예 4 | 3.40 | 144.0 | 43% | 0.006 | 1.34 | 1.00% | 3.50 | -9.53 |
실시예 5 | 1.91 | 144.0 | 43% | 0.006 | 1.28 | 0.92% | 3.73 | -10.56 |
실시예 6 | 0.08 | 144.0 | 43% | 0.007 | 1.22 | 0.86% | 3.91 | -11.73 |
비교예 1 | -2.11 | 144.0 | 43% | 0.007 | 1.19 | 0.82% | 4.02 | -13.01 |
비교예 2 | -4.66 | 144.0 | 43% | 0.007 | 1.17 | 0.79% | 4.04 | -14.35 |
Claims (16)
- 반사방지필름, 편광자, R(450)/R(550) 값이 0.99 내지 1.01인 위상차 필름 및 점착제층을 순차로 포함하는 원편광판으로서, 상기 반사방지필름은 반사색이 L*a*b* 색좌표 기준 b*>0를 만족하며, 상기 반사방지필름의 반사색이 b*≥2.0를 만족하는 경우, a*<b*를 만족하고, 상기 반사방지필름의 반사색이 b*<2.0를 만족하는 경우 a*>b*를 만족하며, 상기 위상차 필름은 550nm 파장에 대한 면내 위상차 값이 137.5nm 이상이며, 상기 원편광판은 430nm 파장에 대한 투과율이 30% 이하인 원편광판(R(λ는 λ파장에 대한 면내 위상차 값이다.).
- 제 1 항에 있어서, 상기 반사방지필름의 최저 반사 파장은 390nm 이상인 원편광판.
- 제 1 항에 있어서, 상기 반사방지필름은 최저 반사율이 1% 이하이고, 380nm 내지 780nm 파장 범위 내에서 반사율이 1% 이하인 파장 대역이 1개 존재하는 원편광판.
- 제 1 항에 있어서, 상기 반사방지필름의 헤이즈는 1% 이하인 원편광판.
- 제 1 항에 있어서, 상기 반사방지필름은 반사색이 L*a*b* 색좌표 기준 a*>0를 만족하는 원편광판.
- 제 1 항에 있어서, 상기 편광자의 550nm 파장에 대한 투과율은 40% 내지 50% 범위 내인 원편광판.
- 제 1 항에 있어서, 상기 위상차 필름의 550nm 파장에 대한 면내 위상차 값의 상한은 145nm인 원편광판.
- 제 1 항에 있어서, 상기 위상차 필름의 지상축은 상기 편광자의 흡수축과 43도 내지 47도를 이루는 원편광판.
- 제 1 항에 있어서, 상기 위상차 필름은 액정 중합 필름 또는 고분자 연신 필름인 원편광판.
- 제 1 항에 있어서, 상기 원편광판은 460nm 및 550nm 파장에 대한 투과율이 각각 40% 이상인 원편광판.
- 제 1 항에 있어서, 상기 원편광판은 430nm 파장에 대한 투과율이 4% 이상인 원편광판.
- 제 1 항에 있어서, 상기 원편광판은 370nm 내지 430nm 범위 내에서 최대 흡광도를 나타내는 염료를 더 포함하는 원편광판.
- OLED(Organic light emitting diode) 패널 및 상기 OLED 패널의 일면에 배치된 제 1 항의 원편광판을 포함하는 OLED 장치.
- 제 13 항에 있어서, 상기 OLED 패널은 410nm 내지 500nm 영역의 평균 반사율이 45% 이하이고, 600nm 내지 650nm 영역의 평균 반사율이 50% 이하인 OLED 장치.
- 제 13 항에 있어서, 상기 원편광판이 부착된 OLED 패널의 550nm의 반사율이 1.3% 이하인 OLED 장치.
- 제 13 항에 있어서, 상기 원편광판이 부착된 OLED 패널의 반사색은 L*a*b* 색좌표 기준 a* < 8 및 b* > -12을 만족하는 OLED 장치.
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