The alignment of the liquid crystal molecules in an LCD is
an application where
XBH linearly photopolymerizable polymer technology can offer
breakthroughs with regard to performance, yield and cost
of LCD.
An
Photo-alignment
layer is applied to the surfaces of the LCD substrates and
optically aligned,
thereby generating the required alignment and bias tilt
angle for the liquid crystal molecules in the display. This process replaces
the mechanical brushing of the polyimide layer
that is used in the industry today, and offers a number of
distinct advantages
|
溫度 |
透過率
×109
mol·
m-2
·
s-1
·
Pa-1 |
透過率比 |
|
N2 |
He |
CO2 |
He/N |
CO2/N2 |
|
25°C |
1.31 |
14.4 |
1.46 |
10.9 |
1.1 |
|
100°C |
1.26 |
26.5 |
1.70 |
21.0 |
1.4 |
|
200°C |
1.17 |
43.4 |
1.34 |
37.0 |
1.1 |
Comparison of Properties of
XBH LC Alignment Layer with
foreign samples
|
|
A社
|
B社
|
XBH
|
Condition |
|
Printability
|
◎
|
◎
|
◎
|
From LCD Manufacturer
|
|
Rework property
|
△
|
△
|
◎
|
After precure at 80
°C
From LCD Manufacturer
|
|
Anti-rubbing
|
○
|
○
|
○
|
From LCD Manufacturer
|
|
Surface tension(dyne/cm)
|
35
|
38
|
38
|
|
|
Pretilt angle (
°
)
|
>
89
|
>
89
|
>
89
|
|
|
Visual inspection
(Yield %)
|
>
40
|
>
80
|
>
95
|
From LCD Manufacturer
|
|
VHR (%) RT
|
>
92
|
>
99
|
>
99
|
|
|
VHR (%) 60°C
|
>
70
|
>
98
|
>
98
|
|
|
RDC (mv)
|
290
|
360
|
370
|
|
|
Contrast ratio
|
575
|
590
|
595
|
|
|
Viewing angle
|
17
|
38
|
33
|
•From
LCD Manufacturer,
• CR
at -80°
|
|
Image sticking
|
1
|
3
|
3.5
|
Grade 1(bad) ~ 5 (good) From LCD Manufacturer
|
If you don't find what you're looking for,
Contact Us.
We may have a suitable product that's not listed, or we may be
able to develop a material to fit your specific needs.
Tel : (02)2217-3442 / Fax : (02)2704-4070
|
|
