| CPC H10K 59/32 (2023.02) [H10K 50/115 (2023.02); H10K 50/12 (2023.02); H10K 50/13 (2023.02); H10K 59/38 (2023.02); H10K 85/346 (2023.02); H10K 2101/20 (2023.02)] | 13 Claims |
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1. A display apparatus comprising:
an organic light emitting diode (OLED) structure comprising a first pixel, a second pixel, and a third pixel providing incident light in which blue incident light and green incident light are mixed;
a first color conversion layer disposed on one of the first, the second, or the third pixels, and including quantum dots for converting the incident light from the OLED structure into light of one predetermined color;
a second color conversion layer disposed on another of the first, the second, or the third pixels, and including quantum dots for converting the incident light from the OLED structure into light of another predetermined color; and
first, second, and third color filters arranged in the first, the second, and the third pixels, to absorb or block light of a predetermined wavelength band, the first color filter being disposed on the first color conversion layer, the second color filter being disposed on the second color conversion layer, wherein
a conversion value of an area of a spectrum in a wavelength region of 380 nanometers to 780 nanometers of the green incident light with respect to a difference between a maximum transmittance wavelength of the second color filter and the medial wavelength of the green incident light (Δλ) is about 3.6 or greater and about 13 or less,
wherein the area of the spectrum is determined according to Equation 1 below,
 (x1=380 nm, xn=780 nm)
wherein in Equation 1, f(x) is a spectrum of the green incident light in which the maximum value of the light intensity is normalized to 1, and the medial wavelength is a wavelength that divides the area of the spectrum of the green incident light into two equal halves, and
the conversion value R is determined according to Equation 3 below
R=Area/Δλ; Equation 3
wherein the OLED structure comprises an organic material-based green light emitting layer, and the green light-emitting layer comprises a phosphorescent dopant including metal M and at least one of ligands represented by the following Chemical Formulae 1-1 to 1-4,
 wherein the metal M comprises iridium (Ir), platinum (Pt), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), thulium (Tm), rhodium (Rh), ruthenium (Ru), rhenium (Re), beryllium (Be), magnesium (Mg), aluminum (Al), calcium (Ca), manganese (Mn), cobalt (Co), copper (Cu), zinc (Zn), gallium (Ga), germanium (Ge), palladium (Pd), silver (Ag), or gold (Au),
wherein in Formulas 1-1 to 1-4,
A1 to A4 are each independently a substituted or unsubstituted C5-C30 carbocyclic group, a substituted or unsubstituted C1-C30 heterocyclic group, or a non-cyclic group,
Y11 to Y14 are each independently a chemical bond, O, S, N(R91), B(R91), P(R91) or C(R91)(R92),
T1 to T4 are each independently a single bond, a double bond, *—N(R93)—*′, *—B(R93)—*, *—P(R93)—*′, *—C(R93)(R94)—*′, *—Si(R93)(R94)—*′, *—Ge(R93)(R94)—*′, *—S—*′, *—Se—*′, *—O—*, *—C(═O)—*′, *—S(═O)—*′, *—S(═O)2—*′, *—C(R93)═*′, *═C(R93)—*′, *—C(R93)═C(R94)—*′, *—C(═S)—*′, or *—C≡C—*′,
the substituent of the substituted C5-C30 carbocyclic group, the substituent of the substituted C1-C30 heterocyclic group, and R91 to R94 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, —SF5, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or salt thereof, a sulfonic acid group or salt thereof, a phosphoric acid group or salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 hetero-cycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic heterocondensed polycyclic group, —N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —B(Q6)(Q7), or —P(═O)(Q8)(Q9), wherein Q1 to Q9 are each independently —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, or —CD2CDH2; an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, or a naphthyl group, and
*1, *2, *3, and *4 are each independently a bonding site to the metal M of the dopant.
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