Liquid crystal alignment agent, liquid crystal alignment film, and liquid crystal element

A liquid crystal alignment agent with specific structural units in the polymer improves both film strength and electrical properties, addressing the balance issue in existing films to reduce DC afterimages and enhance display quality.

JP2026116136APending Publication Date: 2026-07-09JSR CORPORATION
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
JSR CORPORATION
Filing Date
2025-10-07
Publication Date
2026-07-09

Smart Images

  • Figure 2026116136000001
    Figure 2026116136000001
  • Figure 2026116136000002
    Figure 2026116136000002
  • Figure 2026116136000003
    Figure 2026116136000003
Patent Text Reader

Abstract

To provide a liquid crystal aligning agent capable of obtaining a liquid crystal alignment film showing good liquid crystal alignment properties and having high film strength, and also capable of obtaining a liquid crystal element having excellent electrical characteristics. 【Solution means】The liquid crystal aligning agent contains a polymer (P) containing a structural unit (U1), a structural unit (U2), and a structural unit (U3) in the same molecule. Structural unit (U1): A structural unit derived from a diamine having a partial structure represented by formula (1). Structural unit (U2): A structural unit derived from a diamine having a partial structure Y (-(CH2) n - etc.) (excluding the structural unit (U1) and the structural unit (U3)). Structural unit (U3): A structural unit derived from a diamine having a partial structure represented by formula (2). In formula (1), A 1 and A 2 are trivalent aromatic ring groups. B 1 is -NR 1 - etc. In formula (2), X 1 is a monovalent thermally detachable group. R 4 is "-C(R 7 )(R 8 )-" etc. R 5 is "-C(R 7 )(R 8 )-" etc. TIFF2026116136000029.tif31169
Need to check novelty before this filing date? Find Prior Art