4,4-Dimethylcholest-5-en-3-yl acetate | 4057-03-8

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: 4,4-Dimethylcholest-5-en-3-yl acetate
• 英文别名: [4,4,10,13-tetramethyl-17-(6-methylheptan-2-yl)-1,2,3,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-yl] acetate
• CAS: 4057-03-8
• 化学式: C₃₁H₅₂O₂
• 分子量: 456.7
• InChiKey: PTDBQIJPNPGLEF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10
• 重原子数：
  33
• 可旋转键数：
  7
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

文献信息

• Scanning antenna and scanning antenna production method
  申请人：SHARP KABUSHIKI KAISHA

  公开号：US10756444B2

  公开（公告）日：2020-08-25

  A liquid crystal panel included in a scanning antenna includes: a TFT substrate including a first dielectric substrate, a TFT supported by the first dielectric substrate, a gate bus line, a source bus line, a patch electrode, and a first alignment film covering the patch electrode; a slot substrate including a second dielectric substrate, a slot electrode formed on a first main surface of the second dielectric substrate and including a slot disposed corresponding to the patch electrode, and a second alignment film covering the slot electrode; and a liquid crystal layer provided between the TFT substrate and the slot substrate and containing a liquid crystal molecule including an isothiocyanate group. The first alignment film and the second alignment film are each independently formed of a polyimide-based alignment film material. In each of the first alignment film and the second alignment film, a density of a carboxyl group on a film surface in contact with the liquid crystal layer is less than a density of a carboxyl group inside a film.

  扫描天线中的液晶面板包括一 TFT 基板，包括一第一电介质基板、一由第一电介质基板支撑的 TFT、一栅极母线、一源母线、一贴片电极，以及一覆盖贴片电极的第一对准膜； 一槽基板，包括一第二电介质基板、一形成于第二电介质基板的第一主表面并包括一与贴片电极相对应的槽的槽电极，以及一覆盖槽电极的第二对准膜；以及 一液晶层，设置于 TFT 基板与槽基板之间，并含有一包括一异硫氰酸酯基团的液晶分子。第一对准膜和第二对准膜各自独立地由聚酰亚胺基对准膜材料形成。在第一对准膜和第二对准膜中，与液晶层接触的薄膜表面上的羧基密度小于薄膜内部的羧基密度。
• ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：Sharp Kabushiki Kaisha

  公开号：US20170218272A1

  公开（公告）日：2017-08-03

  The present invention provides an alignment film having excellent heat resistance and capable of suppressing generation of defects such as image sticking and stain, and a liquid crystal display device including the alignment film. The alignment film of the present invention contains a copolymer containing a repeating structural unit represented by the following formula (1), wherein X1 and X2 may be the same as or different from each other and are each represented by, for example, any of the following formulas (X-P1) to (X-P4); and Y is represented by, for example, any of the following formulas (Y-P1) to (Y-P4).
• SCANNING ANTENNA AND SCANNING ANTENNA PRODUCTION METHOD
  申请人：SHARP KABUSHIKI KAISHA

  公开号：US20190173198A1

  公开（公告）日：2019-06-06

  A liquid crystal panel included in a scanning antenna includes: a TFT substrate including a first dielectric substrate, a TFT supported by the first dielectric substrate, a gate bus line, a source bus line, a patch electrode, and a first alignment film covering the patch electrode; a slot substrate including a second dielectric substrate, a slot electrode formed on a first main surface of the second dielectric substrate and including a slot disposed corresponding to the patch electrode, and a second alignment film covering the slot electrode; and a liquid crystal layer provided between the TFT substrate and the slot substrate and containing a liquid crystal molecule including an isothiocyanate group. The first alignment film and the second alignment film are each independently formed of a polyimide-based alignment film material. In each of the first alignment film and the second alignment film, a density of a carboxyl group on a film surface in contact with the liquid crystal layer is less than a density of a carboxyl group inside a film.
• LIQUID CRYSTAL PANEL, SWITCHABLE MIRROR PANEL AND SWITCHABLE MIRROR DISPLAY
  申请人：SHARP KABUSHIKI KAISHA

  公开号：US20190219856A1

  公开（公告）日：2019-07-18

  The present invention provides a liquid crystal panel that achieves low-voltage driving and wide color gamut and suppresses the generation of residual DC voltage caused by UV light included in backlight illumination or the like, a switchable mirror panel including the liquid crystal panel, and a switchable mirror display including the liquid crystal panel. The liquid crystal panel of the present invention includes: a first substrate; a second substrate; a liquid crystal layer held between the first substrate and the second substrate; and a vertical alignment film disposed on a liquid crystal layer side of each of the first substrate and the second substrate. The liquid crystal layer contains a liquid crystal material with a negative anisotropy of dielectric constant. The liquid crystal material contains a tolan liquid crystal compound. The vertical alignment film contains a vertical alignment polymer that includes a main chain and a side chain. The side chain includes a saturated aliphatic functional group at a terminal.