摘要:
This invention relates to methods for preparing photo-patterned mono- or polychromatic, polarizing films. The polarizer can be pixelated into a number of small regions wherein some of the regions have one orientation of the principal neutral or color absorbing axis; and some other of the said regions have another orientation of the principal neutral or color absorbing axis. The axis orientation is determined by the polarization vector of actinic radiation and the multi-axes orientation is possible by a separated masked exposure. This polarizer can be placed on the interior substrate surface of the LCD cell.
摘要:
This invention relates to methods for preparing photo-patterned mono- or polychromatic, polarizing films. The polarizer can be pixelated into a number of small regions wherein some of the regions have one orientation of the principal neutral or color absorbing axis; and some other of the said regions have another orientation of the principal neutral or color absorbing axis. The axis orientation is determined by the polarization vector of actinic radiation and the multi-axes orientation is possible by a separated masked exposure. This polarizer can be placed on the interior substrate surface of the LCD cell.
摘要:
The present invention relates to materials used for aligning liquid crystals of liquid crystal display elements and to a polymer for use in liquid crystal vertical alignment layer used in producing a liquid crystal vertical alignment layer.The polymer for use in a liquid crystal vertical alignment layer includes (a) a moiety that is photochemically isomerizable but not photochemically crosslinked, (b) a moiety that is photochemically crosslinkable, and (c) a moiety that stabilizes a vertical alignment. The polymer can be used to produce a vertical alignment layer that has a liquid crystal alignment property enabling control of alignment at a low UV dose and that offers a large pretilt angle and superior optical stability.
摘要:
A liquid crystal optical device that includes a first substrate layer that is substantially flat and a second substrate layer that is substantially flat and parallel to the first substrate layer. The liquid crystal optical device further includes a layer of cholesteric liquid crystal disposed between the first substrate layer and the second substrate layer, where the layer of cholesteric liquid crystal is arranged in domains, each domain having a helical axis, wherein the helical axes of the domains have a plurality of orientations relative to an orientation of the first and second substrate layers, and where a wavefront of a light wave having a wavelength within a range of wavelengths changes after reflecting from the layer of cholesteric liquid crystal.
摘要:
The present invention relates to materials used for aligning liquid crystals of liquid crystal display elements and to a polymer for use in liquid crystal vertical alignment layer used in producing a liquid crystal vertical alignment layer.The polymer for use in a liquid crystal vertical alignment layer includes (a) a moiety that is photochemically isomerizable but not photochemically crosslinked, (b) a moiety that is photochemically crosslinkable, and (c) a moiety that stabilizes a vertical alignment. The polymer can be used to produce a vertical alignment layer that has a liquid crystal alignment property enabling control of alignment at a low UV dose and that offers a large pretilt angle and superior optical stability.
摘要:
An azo compound of the present invention is represented by the general formula (1): (wherein, R1 and R2 each independently represents a hydroxy group, or a polymerizable functional group selected from the group consisting of a (meth)acryloyl group, a (meth)acryloyloxy group, a (meth)acrylamide group, a vinyl group, a vinyloxy group, and a maleimide group; X1 represents single bond when R1 is a hydroxy group and represents a linking group represented by -(A1-B1)m- when R1 is a polymerizable functional group; X2 represents a single bond when R2 is a hydroxy group and represents a linking group represented by -(A2-B2)n- when R2 is a polymerizable functional group; R3 and R4 each independently represents —OR7, a hydroxyalkyl group having 1 to 4 carbon atoms, or —CONR8R9; and R5 and R6 each independently represents a carboxy group, a sulfo group, a nitro group, amino group, or a hydroxy group).
摘要翻译:本发明的偶氮化合物由通式(1)表示:(其中,R 1和R 2各自独立地表示羟基或可聚合官能团 选自(甲基)丙烯酰基,(甲基)丙烯酰氧基,(甲基)丙烯酰胺基,乙烯基,乙烯基氧基和马来酰亚胺基的基团; X 1, 当R 1是羟基时,表示单键,并且表示由 - (A 1 -S 1 - B 1)m表示的连接基团 当R 1是可聚合官能团时,当R 2是羟基时,X 2表示单键,并且表示 当R 2为可聚合官能团时,由 - (A 2 O 2 -B 2 O 2)N - 表示的连接基团 基团; R 3和R 4各自独立地表示-OR 7,具有1至4个碳原子的羟烷基或-CONR 9< 9>和< 5> / SUP>和R 6各自独立地表示羧基,磺基,硝基,氨基或羟基)。
摘要:
The present invention provides a method of forming a polarizing material comprising exposing a layer of dichroic material to activating light illumination to provide an ordered structure with a distinguished absorption axis and thus photo-induce polarization, and fixing the induced polarization by polymerisation of the dichroic layer. The present invention also provides novel polarizing formed thereby. By selectively exposing regions of the dichroic material to differing activating radiation, different regions with different polarization axes can be created. The polarizing material can also be provided with a coating or coatings to alter the spectral response, and a stack formed of a plurality if dichroic layers may be provided.
摘要:
An electrooptically tunable waveguide-coupled microresonator. In one example embodiment, the switch includes a photoalignment layer that enhances control of liquid crystal alignment in the cladding near the coupling region of the microresonator and waveguide.
摘要:
A transflective liquid crystal display having at least one reflective region 122 and at least one transmissive region 121. The display comprises a first polarizer 5, a second polarizer 100 opposing the first polarizer 5, two twisted nematic liquid crystal layers 30, 60 between said first and second polarizers 5, 100 and a reflector 110 for reflecting light passing though the reflective region 122 of the display. The twisted nematic liquid crystal layers 30, 60 have opposite twist directions to each other. The second twisted nematic liquid crystal layer 60 improves the contrast of the display. The display may have a double cell arrangement, in which case there may be a single cell gap or a double cell gap. Alternatively, the display may have a single cell arrangement in which case the second twisted nematic liquid crystal layer is a temperature dependent retardation film 65.