16
OLED顯示器用圓偏光片分析-HC 表面處理

OLED

Embed Size (px)

Citation preview

Page 1: OLED

OLED顯示器用圓偏光片分析-HC表面處理

Page 2: OLED

圓偏光片

2011/3/27 P. 2

OLED Panel

PSA-2

Retardation film(1/4l)

PSA-1

Bottom TAC

PVA

Top TAC

表面處理

(HC/AG/LR/AR)

Retardation film的慢軸需與線偏光片的吸收軸夾±45度

W142,S142,140/200, 140/220, 140/230, 140/240 film

線偏光片

Page 3: OLED

量測片

• 線偏光片 : 薄型HC偏光片

• 補償膜 : Teijin-S141

Teijin-W142

Arton-140/200

Arton-140/220

Arton-140/230

Arton-140/240

2011/3/27 P. 3

COP材質之TRVA面板用補償膜

Page 4: OLED

圓偏光片光學-LPF100

Sample ID Ys Yp Ls as bs 380.0nm 440.0nm 550.0nm 610.0nm 700.0nm Yc V value

S141 42.46 35.98 65.164 -1.529 4.043 0.495 37.711 42.488 42.654 44.279 0.00573 99.984

W142 42.5 36.04 65.192 -1.526 4.329 0.505 37.448 42.527 42.905 44.448 0.0046 99.987

140200 42.42 35.9 65.129 -1.513 3.898 0.503 37.836 42.428 42.62 44.176 0.00946 99.974

140220 42.27 35.65 65.012 -1.522 3.965 0.497 37.626 42.269 42.48 44.08 0.00448 99.987

140230 42.33 35.75 65.061 -1.517 3.944 0.495 37.72 42.368 42.589 44.184 0.00456 99.987

140240 42.36 35.81 65.087 -1.466 3.902 0.5 37.805 42.386 42.561 44.207 0.00547 99.985

2011/3/27P. 4

圓偏光片厚度Sample ID d(mm)

S141 213

W142 247

140200 174+25

140220 176+25

140230 175+25

140240 175+25

___+25 : 假設PSA-2厚度為25mm___ : 未含PSA-2之厚度

Page 5: OLED

Retardation films DataFilm

d l Re Rth Refractive Index

(mm) (nm) (nm) (nm) navg nx ny nz

Teijin-S141 50

400 98 45

1.62

1.620865 1.61954 1.619595

550 137 68 1.621232 1.61938 1.619388

700 142 72 1.621285 1.619364 1.619351

Teijin-

W14274

400 72 31

1.62

1.620626 1.619657 1.619717

550 138 68 1.621239 1.619377 1.619384

700 149 75 1.621346 1.619338 1.619316

Arton-

140/20035

400 144 205

1.53

1.534012 1.529894 1.526094

550 143 208 1.534028 1.529932 1.526039

700 143 209 1.534022 1.529951 1.526026

Arton-

140/22035

400 140 229

1.53

1.534189 1.530185 1.525626

550 139 233 1.534209 1.530232 1.525559

700 142 232 1.534247 1.530187 1.525567

Arton-

140/23035

400 140 237

1.53

1.53425 1.530256 1.525494

550 139 240 1.534275 1.530299 1.525426

700 138 240 1.534264 1.530313 1.525423

Arton-

140/24035

400 142 244

1.53

1.534352 1.530303 1.525345

550 141 248 1.534379 1.530353 1.525268

700 140 249 1.534372 1.530374 1.525254

2011/3/27P. 5

Page 6: OLED

補償膜波長分散性

2011/3/27 P. 6

60

70

80

90

100

110

120

130

140

400 500 600 700 800

wavelength(nm)

reta

rdan

ce(d

eg.)

S141

W142

140-200

140-220

140-230

140-240

補償膜的相位延遲越接近90度,代表使用此補償膜的圓偏振片圓偏極化程度越高

Page 7: OLED

補償膜-補償值VS傾角

30

60

90

120

150

-50 -30 -10 10 30 50

tilt angle(deg.)

Ret

arda

nce(

deg.

)

S141 about FA

S141 about SA

W142 about FA

W142 about SA

140/200 about FA

140/200 about SA

140/220 about FA

140/220 about SA

140/230 about FA

140/230 about SA

140/240 about FA

140/240 about SA

2011/3/27 P. 730

60

90

120

-50 -30 -10 10 30 50

tilt angle(deg.)

Ret

arda

nce(

deg.

)

S141 about FA

S141 about SA

W142 about FA

W142 about SA

140/200 about FA

140/200 about SA

140/220 about FA

140/220 about SA

140/230 about FA

140/230 about SA

140/240 about FA

140/240 about SA

45

75

105

135

165

195

-50 -30 -10 10 30 50

tilt angle(deg.)

Ret

arda

nce(

deg.

)

S141 about FA

S141 about SA

W142 about FA

W142 about SA

140/200 about FA

140/200 about SA

140/220 about FA

140/220 about SA

140/230 about FA

140/230 about SA

140/240 about FA

140/240 about SA

400nm 550nm

700nm

傾角對Teijin系列補償值的影響較小;且ARTON系列在400nm波長下補償值偏差較大

Page 8: OLED

傾角&旋轉角~ polarizance ellipticity

2011/3/27 P. 8

圓偏光片

入射光

出射光(量測polarizance ellipticity)

polarizance ellipticity表示圓偏振片的圓偏極化的能力,越接近±1,代表圓偏極化程度越高。橢圓率+為右旋圓偏振,橢圓率-為左旋圓偏振

e= ±1e=0

Page 9: OLED

Output polarizance ellipticity~正視

2011/3/27 P. 9

-1

-0.9

-0.8

-0.7

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0

400 500 600 700 800

wavelength(nm)

Pola

riza

nce

Elli

ptic

ity

S141

W142

140-200

140-220

140-230

140-240

圓偏光片的polarizance ellipticity越接近±1,代表圓偏極化程度越高,e=-1為左旋圓

S141圓偏光片在藍光波段下圓偏極化效果最好

W142圓偏光片在紅光波段下圓偏極化效果最好Arton系列在藍光波

長之圓偏極化較差

Page 10: OLED

傾角&旋轉角~ polarizance ellipticity

2011/3/27 P. 10

傾角50度

入射光

出射光(量測polarizance ellipticity)

表示在方向大視角下圓偏振片的圓偏極化的能力

旋轉角0~360度

線偏光片吸收軸135度為旋轉角起始點

Page 11: OLED

Output polarizance ellipticity~傾角50度

2011/3/27 P. 11-1

-0.9

-0.8

-0.7

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0

0 40 80 120 160 200 240 280 320 360

wavelength(nm)

Pola

riza

nce

Elli

ptic

ity

S141

W142

140-200

140-220

140-230

140-240

-1

-0.9

-0.8

-0.7

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0

0 40 80 120 160 200 240 280 320 360

wavelength(nm)

Pola

riza

nce

Elli

ptic

ity

S141

W142

140-200

140-220

140-230

140-240

-1

-0.8

-0.6

-0.4

-0.2

0

0.2

0.4

0 40 80 120 160 200 240 280 320 360

wavelength(nm)

Pola

riza

nce

Elli

ptic

ity

S141

W142

140-200

140-220

140-230

140-240

由於Arton系列之補償值設計為TRVA面板視角補償用,所以在大視角下,圓偏振的程度不如S141與

W142

400nm 550nm

700nm

e=-1(左旋圓)

e=-1(左旋圓)

Page 12: OLED

貼上反射鏡作反射率與色相量測

• 量測儀器U4100

2011/3/27P. 12

反射鏡圓偏光片

出射光(量測5度反射率R%與反射色相)

入射光

5。Mirror

0

20

40

60

80

100

120

380 480 580 680 780wavelength

R%

Mirror

Page 13: OLED

反射率

2011/3/27 P. 13

4

5

6

7

8

9

10

380 430 480 530 580 630 680 730 780wavelength(nm)

R% s141

W142

140/200

140/220

140/230

140/240

只有HC表面處理的圓偏光片的反射率與反射色相的比較,可以直接比較出貼上不同補償膜的影響

藍波長下,Arton系列表現較不佳,整體而言W142只有在波長400nm下反射率較大,其餘波段皆為低反射率

Page 14: OLED

Color

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

x

y

S141

W142

140200

140220

140230

140240

x y

S141 0.3348 0.3184

W142 0.3185 0.3147

140/200 0.2789 0.2591

140/220 0.2799 0.2592

140/230 0.2941 0.2673

140/240 0.2851 0.2626

0.24

0.26

0.28

0.3

0.32

0.34

0.25 0.27 0.29 0.31 0.33 0.35

x

y

S141

W142

140200

140220

140230

140240

2011/3/27P. 14

Page 15: OLED

結論

• 以(一)補償膜波長分散性

• (二)正視/大視角下圓偏光片的偏振橢圓率

• (三)貼上反射鏡後的反射率與反射色相

• 分析6種圓偏光片圓偏極化與降低反射率的能力

• 各圓偏光片在不同波長下的表現不同(ex.S141短波長佳、W142長波長佳) ,可依搭配的面板需求選出合適的偏光片

• 可以依需求搭配各種表面處理(AG/AR/LR)

2011/3/27 P. 15

Page 16: OLED

Thanks for your attention!

2011/3/27 P. 16