Patent ID: 11970557
Assignee: LG CHEM, LTD.
Field: Optics (Instruments)
Classification: CPC C  G | IPC C  G

Claim 3:
4. The polymer (A) of claim 1, wherein R3 is represented by Chemical Formula 4:, in the Chemical Formula 4,
R10 is any one group selected from the fourth group consisting of deuterium; a halogen group; a linear or branched alkyl group; a haloalkyl group; a saturated hydrocarbon ring group; an aromatic hydrocarbon group; a saturated heteroring group; an aromatic heteroring group; a ring group having two or more rings fused, each ring being selected from a saturated hydrocarbon ring, an aromatic hydrocarbon, a saturated heteroring and an aromatic heteroring; —OR′; —OC(═O)R′; —C(═O)R′; —C(═O)OR′; —C(═O)NR′2; —NR′2; —SR′; —S(═O)R′; —S(═O)2R′; and —S(═O)2OR′, or a group linking two or more of the groups selected from the fourth group, and R′ is hydrogen; deuterium; an alkyl group; a saturated hydrocarbon ring group; an aromatic hydrocarbon group; a saturated heteroring group; an aromatic heteroring group; or a ring group having at least two rings fused, each ring being selected from a saturated hydrocarbon ring, an aromatic hydrocarbon, a saturated heteroring and an aromatic heteroring, two or more R's being the same as or different from each other, and R10 is optionally further substituted with an oxo group.