US 12,441,915 B2
Optical film and display device comprising same
Bongjun Kim, Daejeon (KR); Ji Hoon Park, Daejeon (KR); Yeon Keun Lee, Daejeon (KR); Mun Kyu Joo, Daejeon (KR); and Deok Hwan Kim, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/618,972
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Mar. 4, 2021, PCT No. PCT/KR2021/002678
§ 371(c)(1), (2) Date Dec. 14, 2021,
PCT Pub. No. WO2021/177744, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 10-2020-0027240 (KR), filed on Mar. 4, 2020.
Prior Publication US 2022/0282093 A1, Sep. 8, 2022
Int. Cl. C09J 7/10 (2018.01); C09B 47/00 (2006.01); C09B 67/20 (2006.01); C09J 11/06 (2006.01); G02B 5/22 (2006.01); H10K 50/86 (2023.01); H10K 59/80 (2023.01)
CPC C09J 7/10 (2018.01) [C09B 47/00 (2013.01); C09B 67/0063 (2013.01); C09J 11/06 (2013.01); G02B 5/223 (2013.01); H10K 50/86 (2023.02); H10K 59/8791 (2023.02); C09J 2203/326 (2013.01); C09J 2301/408 (2020.08)] 16 Claims
OG exemplary drawing
 
1. An optical film,
comprising a dye or pigment absorbing at least some of a wavelength of 490 nm to 510 nm;
having a transmission color of a D65 light source, a CIE standard illuminant, of −8<a*<8 and −8<b*<8, wherein a* indicates a direction the transmission color is leaned between red and green and b* indicates a direction the transmission color is leaned between yellow and blue; and
satisfying the following Equations 1 and 2,
wherein the dye or pigment is a compound represented by the following Chemical Formula 1:
T%(500 nm)<T%(530 nm),  [Equation 1]
[T%(500 nm)×1.8]<[T%(460 nm)+T% (610 nm)]  [Equation 2]
wherein, in the Equations 1 and 2,
T % (A nm) is transmittance at a wavelength of A nm

OG Complex Work Unit Chemistry
in the Chemical Formula 1,
X is Zn; Co; Ni or Pd;
R1 to R6 and R8 to R13 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; —OC(═O) R; —(C═O)NR′R″; —(C═O)OR′″; —(C═O)Rx; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted heteroaryloxy group; a substituted or unsubstituted alkylthio group; a substituted or unsubstituted arylthio group; a substituted or unsubstituted heteroarylthio group; or a substituted or unsubstituted heteroaryl group;
R7 and R14 are the same as or different from each other, and each independently hydrogen; a substituted or unsubstituted alkyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted heteroaryl group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted arylthio group; a substituted or unsubstituted heteroarylthio group; or a substituted or unsubstituted heteroaryloxy group;
R, R′, R″, R′″ and Rx are the same as or different from each other, and each independently hydrogen; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted heterocyclic group; or a substituted or unsubstituted aryl group, or R′ and R″ bond to each other to form a ring; and
when R7 and R14 are hydrogen; a substituted or unsubstituted alkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group and R2, R5, R9 and R12 are —C(═O)OR′″, R′″ is a substituted or unsubstituted aryl group; a substituted or unsubstituted cycloalkyl group; a substituted alkyl group; or a branched unsubstituted alkyl group having 3 to 30 carbon atoms.