INVERSELY DISPERSIVE RETARDATION FILM, AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING SAME
申请人:JX Nippon Oil & Energy Corporation
公开号:EP2390690A1
公开(公告)日:2011-11-30
A reverse dispersion retardation film, formed by stretching a film comprising a norbornene-based ring-opening copolymer containing a structural unit (A) represented by the following general formula (1):
[in the formula (1), m represents an integer of any one of 0 and 1, R1 represents a hydrogen atom or the like, X1 represents a group represented by a formula: -CH2CH2- or the like, a and b each independently represent an integer of 0 to 6, Y represents a methylene group or the like, and Z represents a methylene group or the like] and a structural unit (B) represented by the following general formula (2) :
[in the formula (2), n represents an integer of any one of 0 and 1, X2 represents a group represented by a formula: -CH2CH2- or the like, R2, R3, R4, and R5 each represent a hydrogen atom or the like, wavy lines d and e each represent a configuration of any one of an endo and an exo, and a wavy line f represents a configuration of any one of an endo and an exto], wherein a total amount of the structural unit (A) and an exo-form structural unit, in which the wavy line f represents the exo configuration, among the structural units (B) is not less than 20 mol% but not more than 65 mol% of all the structural units.
一种反向分散延缓膜,由降冰片烯基开环共聚物拉伸形成,该共聚物含有由下式(1)表示的结构单元(A):
[在式 (1) 中,m 代表 0 和 1 之间的整数,R1 代表氢原子或类似物,X1 代表由式表示的基团:-CH2CH2-或类似的基团,a 和 b 各自独立地代表 0 至 6 的整数,Y 代表亚甲基或类似的基团,Z 代表亚甲基或类似的基团]和由以下通式 (2) 代表的结构单元 (B) :
[在式 (2) 中,n 代表 0 和 1 之间的整数,X2 代表由式表示的基团:-R2、R3、R4 和 R5 分别代表氢原子或类似物,波浪线 d 和 e 分别代表内向型和外向型中任何一种构型,波浪线 f 代表内向型和外向型中任何一种构型],其中结构单元 (A) 和外向型结构单元(其中波浪线 f 代表外向型构型)在结构单元 (B) 中的总量不低于所有结构单元的 20 摩尔%,但不超过 65 摩尔%。