KR102314471B1 - Organic light-emitting display apparatus - Google Patents

Abstract

and an organic light emitting device emitting first color light, wherein the organic light emitting device includes: an anode; an intermediate layer including a light emitting layer; and a cathode, wherein the first color light is emitted through secondary resonance, the CIEy value of the color coordinate of the first color light is 0.06 or less, and the first color light satisfies Equation 1 below. do:
<Equation 1>
(area of 455 nm or less in the electroluminescence spectrum of the first color light) / (total area of the electroluminescence spectrum of the first color light) × 100 ≤ 18 (%).

Description

Organic light-emitting display apparatus

The present invention relates to an organic light emitting display device, and more particularly, to an organic light emitting display device capable of minimizing a wavelength region harmful to a human body.

An organic light emitting diode display includes an organic light emitting device including an anode, a cathode, and an organic light emitting layer formed therebetween, and excitons generated by combining holes injected from the anode and electrons injected from the cathode in the organic light emitting layer. It is a self-luminous display device that generates light while falling from an excited state to a ground state.

Since an organic light emitting display device, which is a self-luminous display device, does not require a separate light source, it can be driven at a low voltage, can be configured in a light and thin shape, and has excellent characteristics such as viewing angle, contrast, and response speed. The scope of application is expanding from personal portable devices such as cell phones and mobile phones to televisions (TVs).

However, a generally used blue organic light emitting diode has a problem of emitting ultraviolet rays harmful to the human body together with blue light.

An object of the present invention is to solve various problems including the above problems, and an object of the present invention is to provide an organic light emitting diode display capable of preventing or reducing the emission of ultraviolet rays harmful to the human body. Furthermore, an object of the present invention is to provide an organic light emitting diode display having high color reproducibility even when three types of sub-pixels are used. However, these problems are exemplary, and the scope of the present invention is not limited thereto.

According to one aspect of the present invention, an organic light emitting device emitting a first color light;

The organic light emitting device may include an anode; an intermediate layer including a light emitting layer; and a cathode;

The first color light is emitted as a secondary resonance,

The CIEy value of the color coordinates of the first color light is 0.06 or less,

The first color light satisfies Equation 1 below, and provides an organic light emitting display device:

<Equation 1>

(area of 455 nm or less in the electroluminescence spectrum of the first color light) / (total area of the electroluminescence spectrum of the first color light) × 100 ≤ 18 (%).

In an embodiment, the intermediate layer may have a thickness of 170 nm to 180 nm.

In an embodiment, the emission layer may include a host and a dopant, and the dopant may emit the light of the first color.

As an embodiment, the first color light may be blue light.

In one embodiment, the light emitting layer may include a condensed polycyclic compound represented by the following Chemical Formula 1:

<Formula 1>

In Formula 1,

A ₁₁ to A ₁₃ are each independently a substituted or unsubstituted C ₅ -C ₆₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₆₀ heterocyclic group,

X ₁₁ and X ₁₂ are each independently selected from O, N(R ₁₁ ), S and Se;

Y ₁₁ is selected from B, P, P=O, P=S, Al, Ga, As, Si(R ₁₂ ) and Ge(R ₁₂ );

R ₁₁ is a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₆ -C ₆₀ aryl group, a substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, a substituted or unsubstituted monovalent ratio - selected from a condensed aromatic polycyclic group and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group;

R ₁₂ is selected from a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₆ -C ₆₀ aryl group, and a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group.

As an embodiment, the condensed polycyclic compound represented by Formula 1 may be represented by Formula 1-1 below.

<Formula 1-1>

In Formula 1-1,

For descriptions of X ₁₁ , X ₁₂ and Y ₁₁ refer to Formula 1 above,

R ₂₁ to R ₃₁ are each independently hydrogen, deuterium (-D), -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazo No group, substituted or unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non- Condensed aromatic polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ), -B(Q) ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S(=O) ₂ (Q ₁ ) and -P(=O)(Q ₁ )(Q ₂ );

Q ₁ to Q ₃ are each independently selected from a C ₁ -C ₁₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group; and a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group substituted with at least one selected from a _{C 1} -C ₁₀ alkyl group and —N(Q ₃₁ )(Q _{32 );}

Q ₃₁ and Q ₃₂ are each independently selected from a C ₁ -C ₁₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group and a naphthyl group; and a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group substituted with a _{C 1} -C _{10 alkyl group;}

Two adjacent substituents among R ₂₁ to R ₃₁ may optionally combine with each other to form a ring.

In an embodiment, the condensed polycyclic compound represented by Formula 1 may emit the first color light.

As an embodiment, the organic light emitting display device may be a top emission type organic light emitting display device.

In one embodiment, the anode is reflective or transflective; The cathode may be of a transmissive type.

In an embodiment, the first color light may satisfy Equation 1-1 below:

<Equation 1-1>

(area of 455 nm or less in the electroluminescence spectrum of the first color light) / (total area of the electroluminescence spectrum of the first color light) x 100 ≤ 15 (%).

As an embodiment, the maximum emission wavelength (λ _max ) in the electroluminescence spectrum of the first color light may be 458 nm to 470 nm.

In an embodiment, a full width at half maximum of the first color light may be 35 nm or less.

In an embodiment, the electroluminescence spectrum of the first color light may satisfy Equation 2:

<Equation 2>

｜λ _S - λ _max ｜< ｜λ _L - λ _max ｜

In Formula 2 above,

λ _max is a wavelength value representing the maximum emission intensity in the electroluminescence spectrum of the first color light (ie, the maximum emission wavelength);

λ _S is the smallest wavelength value among points where the electroluminescence spectrum of the first color light meets the x-axis;

λ _L is the largest wavelength value among points where the electroluminescence spectrum of the first color light meets the x-axis.

In an embodiment, the electroluminescence spectrum of the first color light may satisfy Equation 3:

<Equation 3>

｜λ _0.1S - λ _max ｜< ｜λ _0.1L - λ _max ｜

In the above formula 3,

λ _max is a wavelength value representing the maximum emission intensity in the electroluminescence spectrum of the first color light (ie, the maximum emission wavelength);

λ _0.1S is the smallest wavelength value among points having a value of 10% of the maximum luminous intensity;

λ _0.1L is the largest wavelength value among points having a value of 10% of the maximum emission intensity.

In an embodiment, the electroluminescence spectrum of the first color light may satisfy Equation 4:

<Equation 4>

｜λ _0.1L - λ _max ｜/｜λ _0.1S - λ _max ｜ ≤ 4.5

In Equation 4 above,

λ _max is a wavelength value representing the maximum emission intensity in the electroluminescence spectrum of the first color light (ie, the maximum emission wavelength);

λ _0.1S is the smallest wavelength value among points having a value of 10% of the maximum luminous intensity;

λ _0.1L is the largest wavelength value among points having a value of 10% of the maximum emission intensity.

According to another aspect of the present invention, there is provided a substrate comprising: a substrate partitioned into a first light-emitting area, a second light-emitting area, and a third light-emitting area;

a first organic light emitting device disposed to correspond to the first light emitting region and emitting light of a first color;

a second organic light emitting device disposed to correspond to the second light emitting region and emitting light of a second color; and

a third organic light emitting device disposed to correspond to the third light emitting region and emitting light of a third color;

The first organic light emitting device may include an anode; an intermediate layer including a first light emitting layer; and a cathode;

The second organic light emitting device may include an anode; an intermediate layer including a second light emitting layer; and a cathode;

The third organic light emitting device may include an anode; an intermediate layer including a third light emitting layer; and a cathode;

the first color light is emitted as a secondary resonance;

the second color light and the third color light are emitted with a primary resonance or a secondary resonance;

The CIEy value of the color coordinates of the first color light is 0.06 or less,

The first color light satisfies Equation 1 below, and provides an organic light emitting display device:

<Equation 1>

(area of 455 nm or less in the electroluminescence spectrum of the first color light) / (total area of the electroluminescence spectrum of the first color light) × 100 ≤ 18 (%).

In an embodiment, the first color light may be blue light, the second color light may be red light, and the third color light may be green light.

In an embodiment, the first color light may be emitted as a secondary resonance, and the second color light and the third color light may be emitted as a primary resonance.

In one embodiment, the anode may be reflective or transflective and the cathode may be transmissive.

According to an embodiment of the present invention made as described above, an organic light emitting diode display capable of preventing or reducing emission of ultraviolet rays harmful to the human body can be realized. Furthermore, even if three types of sub-pixels (eg, red sub-pixel, green sub-pixel, and blue sub-pixel) are used, an organic light emitting diode display having high color reproducibility may be realized. Of course, the scope of the present invention is not limited by these effects.

1 is a cross-sectional view schematically illustrating a part of an organic light emitting diode display 1 according to an exemplary embodiment.
2 is a cross-sectional view schematically illustrating a part of an organic light emitting diode display 2 according to another exemplary embodiment of the present invention.
FIG. 3 is a view showing an electroluminescence spectrum of Example 1. FIG.
4 is a view showing an electroluminescence spectrum of Comparative Example 1.
5 is a view showing an electroluminescence spectrum of Comparative Example 2.
6 is a view showing an electroluminescence spectrum of Comparative Example 3.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. Effects and features of the present invention, and a method of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various forms.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and when described with reference to the drawings, the same or corresponding components are given the same reference numerals, and the overlapping description thereof will be omitted. .

In the following embodiments, terms such as first, second, etc. are used for the purpose of distinguishing one component from another, not in a limiting sense.

In the following examples, the singular expression includes the plural expression unless the context clearly dictates otherwise.

In the following embodiments, terms such as include or have means that the features or components described in the specification are present, and the possibility of adding one or more other features or components is not excluded in advance.

In the following embodiments, when various components such as layers, films, regions, plates, etc. are “on” other components, this is not only when they are “on” other components, but also when other components are interposed therebetween. including cases where In addition, in the drawings for convenience of description, the size of the components may be exaggerated or reduced. For example, since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the illustrated bar.

1 is a cross-sectional view schematically illustrating a part of an organic light emitting diode display 1 according to an exemplary embodiment.

Referring to FIG. 1 , an organic light emitting diode display 1 according to an exemplary embodiment includes an organic light emitting device 120 emitting a first color light, and the organic light emitting device 120 includes an anode 121 ; an intermediate layer 122 including a light emitting layer; and a cathode 123, wherein the first color light is emitted by secondary resonance, the CIEy value of the color coordinate of the first color light is 0.06 or less, and the first color light satisfies Equation 1:

<Equation 1>

(area of 455 nm or less in the electroluminescence spectrum of the first color light) / (total area of the electroluminescence spectrum of the first color light) × 100 ≤ 18 (%).

In the present exemplary embodiment, when the CIEy value of the color coordinate of the first color light is 0.06 or less and the first color light satisfies Equation 1, the ratio of ultraviolet light emitted from the organic light emitting diode display may be reduced.

Hereinafter, the organic light emitting diode display 1 of this embodiment will be described in detail.

As the substrate 110 , a glass substrate, a metal substrate, a plastic substrate, etc. having excellent mechanical strength, thermal stability, transparency, surface smoothness, ease of handling, and water resistance may be used. For example, the substrate 110 may include polyethersulphone (PES), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (polyethyelenen napthalate, PEN), or polyethylene terephthalate. (polyethyeleneterepthalate, PET), polyphenylene sulfide (PPS), polyallylate, polyimide (PI), polycarbonate (PC) or cellulose acetate propionate, CAP) and the like.

For example, when the organic light emitting diode 120 is a bottom emission type in which light is emitted toward the substrate 110 , the substrate 110 may be transparent.

As another example, in the case of a top emission type in which light from the organic light emitting diode 120 is emitted in the opposite direction to the substrate 110 , the substrate 110 is not necessarily transparent, and may be opaque or translucent. can In this case, the substrate 110 may be formed of metal. When the substrate 110 is formed of metal, the substrate 110 is at least one selected from the group consisting of carbon, iron, chromium, manganese, nickel, titanium, molybdenum, stainless steel (SUS), Invar alloy, Inconel alloy, and Kovar alloy. may include, but is not limited thereto.

Although omitted in FIG. 1 , a buffer layer, a thin film transistor, an organic insulating layer, and the like may be further included between the substrate 110 and the anode 121 .

The anode 121 may be formed of a transmissive, transflective, or reflective electrode.

When the anode 121 is a transmissive type, the anode 121 is formed of tin oxide (SnO ₂ ), indium tin oxide (ITO), indium zinc oxide (IZO), or zinc oxide (ZnO: zinc oxide), indium oxide (In ₂ O ₃ : indium oxide), indium gallium oxide (IGO), and aluminum zinc oxide (AZO), the transparent conductive material being at least one selected from the group consisting of layers may be included. Alternatively, the anode 121 may include silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold ( Au), indium (In), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), ytterbium (Yb), and any combination thereof It may further include a transflective thin film.

When the anode 121 is a reflective type, the anode 121 includes a reflective film formed of Ag, Mg, Al, Pt, Pd, Au, Ni, In, Nd, Ir, Cr, Li, Ca, Yb, and any combination thereof and , a transparent conductive layer disposed on and/or under the reflective film.

Of course, the present invention is not limited thereto, and the anode 121 may be formed of various materials, and various modifications are possible, such as a single-layer or multi-layer structure.

The thickness of the anode 121 may be about 50 nm to about 110 nm. When the thickness of the anode 121 satisfies the above-described range, excellent light emitting characteristics may be exhibited without a substantial increase in driving voltage.

The intermediate layer 122 of the organic light emitting diode 120 may include a light emitting layer.

The intermediate layer 122 may further include a hole transport region interposed between the anode 121 and the light emitting layer and/or an electron transport region interposed between the light emitting layer and the cathode 123 . can

The thickness of the intermediate layer 122 may be about 170 nm to about 180 nm. When the thickness of the intermediate layer 122 satisfies the above range, excellent light emitting characteristics may be exhibited without a substantial increase in driving voltage, and defects may be reduced. In particular, when the thickness of the intermediate layer 122 satisfies the aforementioned range, the first color light is emitted as the secondary resonance. That is, the thickness of the intermediate layer 122 may be designed to match the _{secondary resonance distance L c of the first color light.} For example, the secondary resonance distance ( L _c ) of the first color light can be calculated according to Equation X:

<expression X>

L _c = λ ₁ × 2 / 2 N _c

In the above formula X,

λ ₁ is the wavelength of the first color light, and N _c is the effective refractive index of the resonant structure providing the secondary resonance distance of the first color light.

The hole transport region may be i) a single layer structure made of a single layer made of a single material, ii) a single layer structure made of a single layer made of a plurality of different materials, or iii) a multilayer having a plurality of layers made of a plurality of different materials can have a structure.

The hole transport region may include at least one layer selected from a hole injection layer (HIL), a hole transport layer (HTL), an emission auxiliary layer, and an electron blocking layer (EBL).

For example, the hole transport region may have a single-layer structure including a single layer made of a plurality of different materials, or a hole injection layer/hole transport layer, a hole injection layer/hole transport layer/light emitting layer sequentially stacked from the anode 121 . It may have a multilayer structure of an auxiliary layer, a hole injection layer/emission auxiliary layer, a hole transport layer/emission auxiliary layer, or a hole injection layer/hole transport layer/electron blocking layer, but is not limited thereto.

The hole transport region is, m-MTDATA, TDATA, 2-TNATA, NPB (NPD), β-NPB, TPD, Spiro-TPD, Spiro-NPB, methylated-NPB, TAPC, HMTPD, TCTA (4,4' ,4"-tris(N-carbazolyl)triphenylamine (4,4',4"-tris(N-carbazolyl)triphenylamine)), Pani/DBSA (Polyaniline/Dodecylbenzenesulfonic acid) , PEDOT/PSS (Poly(3,4-ethylenedioxythiophene)/Poly(4-styrenesulfonate) (poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate))), Pani/CSA (Polyaniline/ Camphor sulfonic acid (polyaniline/camphorsulfonic acid)) and PANI/PSS (Polyaniline/Poly(4-styrenesulfonate) (polyaniline/poly(4-styrenesulfonate)) may include at least one selected from:

The emission layer may include a host and a dopant. The dopant may include at least one of a phosphorescent dopant and a fluorescent dopant. The dopant may emit the first color light. For example, the first color light may be blue light.

The host is not particularly limited as long as it is a commonly used material, but for example, Alq3 (tris(8-hydroxyquinolino)aluminum), CBP(4,4'-bis(N-carbazolyl)-1,1'-biphenyl) , PVK(poly(n-vinylcabazole)), ADN(9,10-di(naphthalene-2-yl)anthracene), TCTA(4,4',4''-Tris(carbazol-9-yl)-triphenylamine), TPBi(2,2′,2"-(1,3,5-Benzinetriyl)-tris(1-phenyl-1- H -benzimidazole)), TBADN(3-tert-butyl-9,10-di(naphth- 2-yl)anthracene), DSA(distyryl arylene), CDBP(4,4'-bis(9-carbazolyl)-2,2'-dimethyl-biphenyl), MADN(2-Methyl-9,10-bi s( naphthalen-2-yl)anthracene) and the like may be used.

The dopant is not particularly limited as long as it is a commonly used material, and specifically, a condensed polycyclic compound represented by the following Chemical Formula 1 may be used:

<Formula 1>

In Formula 1,

A ₁₁ to A ₁₃ are each independently a substituted or unsubstituted C ₅ -C ₆₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₆₀ heterocyclic group,

X ₁₁ and X ₁₂ are each independently selected from O, N(R ₁₁ ), S and Se;

Y ₁₁ is selected from B, P, P=O, P=S, Al, Ga, As, Si(R ₁₂ ) and Ge(R ₁₂ );

R ₁₁ is a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₆ -C ₆₀ aryl group, a substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, a substituted or unsubstituted monovalent ratio - selected from a condensed aromatic polycyclic group and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group;

R ₁₂ is selected from a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₆ -C ₆₀ aryl group, and a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group.

For example, in Formula 1, A ₁₁ to A ₁₃ may each independently represent a benzene group, a naphthalene group, a phenanthrene group, a fluoranthene group, a triphenylene group, a pyrene group, a chrysene group, and a fluorene group , a carbazole group, a dibenzofuran group, and a dibenzothiophene group, but is not limited thereto.

For example, the condensed polycyclic compound represented by Formula 1 may be represented by Formula 1-1, but is not limited thereto:

<Formula 1-1>

In Formula 1-1,

For descriptions of X ₁₁ , X ₁₂ and Y ₁₁ refer to Formula 1 above,

R ₂₁ to R ₃₁ are each independently hydrogen, deuterium (-D), -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazo No group, substituted or unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non- Condensed aromatic polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ), -B(Q) ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S(=O) ₂ (Q ₁ ) and -P(=O)(Q ₁ )(Q ₂ );

Q ₁ to Q ₃ are each independently selected from a C ₁ -C ₁₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group; and a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group substituted with at least one selected from a _{C 1} -C ₁₀ alkyl group and —N(Q ₃₁ )(Q _{32 );}

Q ₃₁ and Q ₃₂ are each independently selected from a C ₁ -C ₁₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group and a naphthyl group; and a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group substituted with a _{C 1} -C _{10 alkyl group;}

Two adjacent substituents among R ₂₁ to R ₃₁ may optionally combine with each other to form a ring.

Specifically, the condensed polycyclic compound represented by Formula 1 may be selected from the following compounds, but is not limited thereto:

The condensed polycyclic compound represented by Formula 1 may emit the first color light, but is not limited thereto.

The electron transport region may have i) a single layer structure comprising a single layer made of a single material, ii) a single layer structure comprising a single layer made of a plurality of different materials, or iii) a multilayer structure having a plurality of layers made of a plurality of different materials can have

The electron transport region may include at least one layer selected from a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer (ETL), and an electron injection layer, but is not limited thereto.

For example, the electron transport region may include an electron transport layer/electron injection layer, a hole blocking layer/electron transport layer/electron injection layer, an electron control layer/electron transport layer/electron injection layer, or a buffer layer/electron transport layer/ It may have a structure such as an electron injection layer, but is not limited thereto.

The electron transport region is, BCP (2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline), Bphen (4,7-Diphenyl-1,10-phenanthroline), Alq ₃ , BAlq (Bis (2) -methyl-8-quinolinolato-N1,O8)-(1,1'-Biphenyl-4-olato)aluminum), TPBi, TAZ(3-(Biphenyl-4-yl)-5-(4- tert -butylphenyl) -4-phenyl-4 H -1,2,4- triazole) and NTAZ (4- (Naphthalen-1- yl) -3,5-diphenyl-4H-1,2,4-triazole) in at least one selected compounds may be included.

The electron transport region (eg, an electron transport layer in the electron transport region) may further include a metal-containing material in addition to the above-described material.

The metal-containing material may include at least one selected from an alkali metal complex and an alkaline earth metal complex. The metal ions of the alkali metal complex may be selected from Li ions, Na ions, K ions, Rb ions and Cs ions, and the metal ions of the alkaline earth metal complex include Be ions, Mg ions, Ca ions, Sr ions, and Ba ions. ions may be selected. The ligand coordinated to the metal ion of the alkali metal complex and the alkaline earth metal complex is, independently of each other, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyl Oxazole, hydroxyphenylthiazole, hydroxydiphenyloxadiazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzoimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline and cyclopentadiene, but is not limited thereto.

For example, the metal-containing material may include a Li complex. The Li complex may include, for example, the following compound ET-D1 (lithium quinolate, LiQ) or ET-D2.

The electron transport region may include an electron injection layer that facilitates electron injection from the cathode 123 . The electron injection layer may directly contact the cathode 123 .

The electron injection layer has i) a single-layer structure comprising a single layer made of a single material, ii) a single-layer structure comprising a single layer made of a plurality of different materials, or iii) a multilayer structure having a plurality of layers made of a plurality of different materials can have

The electron injection layer may include an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, a rare earth metal compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof.

The alkali metal may be selected from Li, Na, K, Rb and Cs. According to one embodiment, the alkali metal may be Li, Na or Cs. According to another embodiment, the alkali metal may be Li or Cs, but is not limited thereto.

The alkaline earth metal may be selected from Mg, Ca, Sr, and Ba.

The rare earth metal may be selected from Sc, Y, Ce, Tb, Yb and Gd.

The alkali metal compound, the alkaline earth metal compound and the rare earth metal compound may be selected from oxides and halides (eg, fluoride, chloride, bromide, iodide, etc.) of the alkali metal, the alkaline earth metal and the rare earth metal. have.

The alkali metal compound may be selected from _{alkali metal oxides such as Li 2} O, Cs ₂ O, K ₂ O, and alkali metal halides such as LiF, NaF, CsF, KF, LiI, NaI, CsI, KI, and the like. According to an embodiment, the alkali metal compound may be selected from LiF, Li ₂ O, NaF, LiI, NaI, CsI, and KI, but is not limited thereto.

The alkaline earth metal compound may be selected from alkaline earth metal compounds such as BaO, SrO, CaO, Ba _x Sr _1-x O (0<x<1), Ba _x Ca _1-x O (0<x<1), and the like. have. According to an embodiment, the alkaline earth metal compound may be selected from BaO, SrO, and CaO, but is not limited thereto.

The rare earth metal compound may be selected from YbF ₃ , ScF ₃ , ScO ₃ , Y ₂ O ₃ , Ce ₂ O ₃ , GdF ₃ , and TbF ₃ . According to one embodiment, the rare earth metal compound are _{YbF 3, ScF 3, TbF 3} , YbI 3, ScI 3, TbI 3 may be selected from, but is not limited to such.

The alkali metal complex, the alkaline earth metal complex and the rare earth metal complex include ions of an alkali metal, an alkaline earth metal and a rare earth metal as described above, and are coordinated to a metal ion of the alkali metal complex, the alkaline earth metal complex and the rare earth metal complex. The ligand is, independently of each other, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxydiphenyloxa diazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzoimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline and cyclopentadiene it is not

The electron injection layer consists only of alkali metals, alkaline earth metals, rare earth metals, alkali metal compounds, alkaline earth metal compounds, rare earth metal compounds, alkali metal complexes, alkaline earth metal complexes, rare earth metal complexes, or any combination thereof as described above, or , the organic material may be further included. When the electron injection layer further includes an organic material, the alkali metal, alkaline earth metal, rare earth metal, alkali metal compound, alkaline earth metal compound, rare earth metal compound, alkali metal complex, alkaline earth metal complex, rare earth metal complex, or any of these The combination may be uniformly or non-uniformly dispersed in the matrix made of the organic material.

The cathode 123 may be formed of a transmissive, transflective, or reflective electrode.

When the cathode 123 is a transmissive type, the cathode 123 is lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium- It may include at least one selected from indium (Mg-In), magnesium-silver (Mg-Ag), ITO, and IZO, but is not limited thereto.

Of course, the present invention is not limited thereto, and the cathode 123 may be formed of various materials, and its structure may also be a single layer or a multilayer, and various modifications are possible.

The thickness of the cathode 123 may be about 8 nm to about 10 nm. When the thickness of the cathode 123 satisfies the above-described range, excellent light emitting characteristics may be exhibited without a substantial increase in driving voltage.

A pixel define layer (PDL) 130 may be formed to cover an edge of the anode 121 of the organic light emitting diode 120 . The pixel defining layer 130 surrounds the edge of the anode 121 to define a light emitting area of each subpixel.

For example, the organic light emitting diode display 1 may be a top emission type. At this time, the anode 121 may be a reflective type or a transflective type, and the cathode 123 may be a transmissive type. Also, the substrate 110 may be of a transmissive type.

The first color light may satisfy Equation 1-1, but is not limited thereto:

<Equation 1-1>

(area of 455 nm or less in the electroluminescence spectrum of the first color light) / (total area of the electroluminescence spectrum of the first color light) x 100 ≤ 15 (%).

_{The maximum emission wavelength (λ max} ) in the electroluminescence spectrum of the first color light may be about 458 nm to about 470 nm, but is not limited thereto. _{When the maximum emission wavelength λ max in the} electroluminescence spectrum of the first color light satisfies the aforementioned range, an organic light emitting diode display having high color reproducibility may be provided.

A full width at half maximum of the first color light may be 35 nm or less, but is not limited thereto. When the full width at half maximum of the first color light satisfies the aforementioned range, an organic light emitting diode display having improved luminous efficiency may be provided.

The electroluminescence spectrum of the first color light may satisfy Equation 2 below, but is not limited thereto. When the electroluminescence spectrum of the first color light satisfies Equation 2 below, an organic light emitting display device having improved luminous lifetime and luminous efficiency may be provided:

<Equation 2>

｜λ _S - λ _max ｜< ｜λ _L - λ _max ｜

In Formula 2 above,

λ _max is a wavelength value representing the maximum emission intensity in the electroluminescence spectrum of the first color light (ie, the maximum emission wavelength);

λ _S is the smallest wavelength value among points where the electroluminescence spectrum of the first color light meets the x-axis;

λ _L is the largest wavelength value among points where the electroluminescence spectrum of the first color light meets the x-axis.

The electroluminescence spectrum of the first color light may satisfy Equation 3 below, but is not limited thereto. When the electroluminescence spectrum of the first color light satisfies Equation 3, an organic light emitting display device having improved luminous lifetime and luminous efficiency may be provided:

<Equation 3>

｜λ _0.1S - λ _max ｜< ｜λ _0.1L - λ _max ｜

In the above formula 3,

λ _max is a wavelength value representing the maximum emission intensity in the electroluminescence spectrum of the first color light (ie, the maximum emission wavelength);

λ _0.1S is the smallest wavelength value among points having a value of 10% of the maximum luminous intensity;

λ _0.1L is the largest wavelength value among points having a value of 10% of the maximum emission intensity.

The electroluminescence spectrum of the first color light may satisfy Equation 4 below, but is not limited thereto. If the electroluminescence spectrum of the first color light satisfies Equation 4 below, an organic light emitting diode display having improved luminous lifetime and luminous efficiency may be provided:

<Equation 4>

｜λ _0.1L - λ _max ｜/｜λ _0.1S - λ _max ｜ ≤ 4.5

In Equation 4 above,

λ _max is a wavelength value representing the maximum emission intensity in the electroluminescence spectrum of the first color light (ie, the maximum emission wavelength);

λ _0.1S is the smallest wavelength value among points having a value of 10% of the maximum luminous intensity;

λ _0.1L is the largest wavelength value among points having a value of 10% of the maximum emission intensity.

2 is a cross-sectional view schematically illustrating a part of an organic light emitting diode display 2 according to another exemplary embodiment of the present invention.

The organic light emitting diode display 2 of FIG. 2 is structurally different from the organic light emitting diode display 1 in that it further includes an additional sub-pixel.

Referring to FIG. 1 , the organic light emitting diode display 2 includes: a substrate partitioned into a first light emitting area, a second light emitting area, and a third light emitting area; a first organic light emitting device disposed to correspond to the first light emitting region and emitting light of a first color; a second organic light emitting device disposed to correspond to the second light emitting region and emitting light of a second color; and a third organic light emitting device disposed to correspond to the third light emitting region and emitting a third color light, wherein the first organic light emitting device includes: an anode; an intermediate layer including a first light emitting layer; and a cathode, wherein the second organic light emitting device includes: an anode; an intermediate layer including a second light emitting layer; and a cathode, wherein the third organic light emitting device includes: an anode; an intermediate layer including a third light emitting layer; and a cathode, wherein the first color light is emitted as a secondary resonance; the second color light and the third color light are emitted with a primary resonance or a secondary resonance; The CIEy value of the color coordinates of the first color light is 0.06 or less, and the first color light satisfies Equation 1:

<Equation 1>

(area of 455 nm or less in the electroluminescence spectrum of the first color light) / (total area of the electroluminescence spectrum of the first color light) × 100 ≤ 18 (%).

The first color light, the second color light, and the third color light may have different wavelength ranges. For example, the first color light may have a shorter wavelength than the second color light and the third color light. Specifically, the first color light may be blue light, the second color light may be red light, and the third color light may be green light, but is not limited thereto.

For example, the first color light may be emitted through secondary resonance, and the second color light and the third color light may be emitted through primary resonance, but is not limited thereto. In this case, compared to an organic light emitting diode display in which all of the first to third color lights are emitted through secondary resonance, a driving voltage may be reduced and current efficiency may be increased.

For example, the organic light emitting diode display 2 may be a top emission type. In this case, the anodes 221 , 241 , and 251 may be reflective or transflective, and the cathode 223 may be transmissive. Also, the substrate 210 may be opaque or translucent.

Each layer included in the intermediate layer is formed by various methods such as vacuum deposition, spin coating, casting, Langmuir-Blodgett (LB), inkjet printing, laser printing, and Laser Induced Thermal Imaging (LITI). may be formed in a predetermined area using

When each layer included in the intermediate layer is respectively formed by the vacuum deposition method, the deposition conditions are, for example, a deposition temperature of about 100 to about 500 °C, ^{a vacuum degree of about 10 -8} to about 10 ^-3 torr, and about 0.01 to about 0.01 to Within the deposition rate range of about 100 Å/sec, it may be selected in consideration of the material to be included in the layer to be formed and the structure of the layer to be formed.

When each layer included in the intermediate layer is formed by the spin coating method, the coating conditions are, for example, within the range of a coating speed of about 2000 rpm to about 5000 rpm and a heat treatment temperature of about 80° C. to 200° C., It may be selected in consideration of the material to be included in the layer and the structure of the layer to be formed.

In the present specification, the C ₁ -C ₆₀ alkyl group refers to a linear or branched aliphatic hydrocarbon monovalent group having 1 to 60 carbon atoms, and specific examples thereof include a methyl group, an ethyl group, a propyl group, an isobutyl group, and a sec-butyl group. group, ter-butyl group, pentyl group, iso-amyl group, hexyl group, and the like. In the present specification, the C ₁ -C ₆₀ alkylene group refers to a divalent group having the same structure as _{the C 1} -C _{60 alkyl group.}

In the present specification, the C ₆ -C ₆₀ aryl group refers to a monovalent _{group having a carbocyclic aromatic system having 6 to 60 carbon atoms, and the C 6} -C ₆₀ arylene group is a carbocyclic aromatic system having 6 to 60 carbon atoms. It means a divalent (divalent) group having a. Specific examples of the C ₆ -C ₆₀ aryl group include a phenyl group, a naphthyl group, an anthracenyl group, a phenanthrenyl group, a pyrenyl group, a chrysenyl group, and the like. When the C ₆ -C ₆₀ aryl group and the C ₆ -C ₆₀ arylene group include two or more rings, the two or more rings may be condensed with each other.

In the present specification, the C ₁ -C ₆₀ heteroaryl group includes at least one hetero atom selected from N, O, Si, P, and S as a ring-forming atom and a monovalent group having a heterocyclic aromatic system having 1 to 60 carbon atoms. means, and the C ₁ -C ₆₀ heteroarylene group contains at least one hetero atom selected from N, O, Si, P and S as a ring-forming atom and has a heterocyclic aromatic system having 1 to 60 carbon atoms. means group. Specific examples of the C ₁ -C ₆₀ heteroaryl group include a pyridinyl group, a pyrimidinyl group, a pyrazinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, and the like. When the C ₁ -C ₆₀ heteroaryl group and the C ₁ -C ₆₀ heteroarylene group include two or more rings, the two or more rings may be condensed with each other.

In the present specification, the monovalent non-aromatic condensed polycyclic group has two or more rings condensed with each other, contains only carbon as a ring-forming atom, and the entire molecule is non-aromatic. means a monovalent group having (eg, having 8 to 60 carbon atoms). Specific examples of the monovalent non-aromatic condensed polycyclic group include a fluorenyl group and the like. In the present specification, the divalent non-aromatic condensed polycyclic group refers to a divalent group having the same structure as the monovalent non-aromatic condensed polycyclic group.

In the present specification, a monovalent non-aromatic condensed heteropolycyclic group (non-aromatic condensed heteropolycyclic group) has two or more rings condensed with each other, and at least one selected from N, O, Si, P and S in addition to carbon as a ring forming atom. It includes a hetero atom and refers to a monovalent group (eg, having 1 to 60 carbon atoms) in which the entire molecule is non-aromatic. Specific examples of the monovalent non-aromatic condensed heteropolycyclic group include a carbazolyl group and the like. In the present specification, the condensed divalent non-aromatic heteropolycyclic group refers to a divalent group having the same structure as the monovalent non-aromatic condensed heteropolycyclic group.

In the present specification, the C ₅ -C ₆₀ carbocyclic group refers to a monocyclic or polycyclic group having 5 to 60 carbon atoms including only carbon as a ring-forming atom. The C ₅ -C ₆₀ carbocyclic group may be an aromatic carbocyclic group or a non-aromatic carbocyclic group. The C ₅ -C ₆₀ carbocyclic group may be a ring such as benzene, a monovalent group such as a phenyl group, or a divalent group such as a phenylene group. Alternatively, it is the C ₅ -C according to the number attached to the substituent at the ₆₀ carbocyclic group, a C ₅ -C ₆₀ carbocyclic group during the various modifications can be made, such as in 3 or 4 is the group number of a group.

In the present specification, the C ₁ -C ₆₀ heterocyclic group has the same structure as the C ₅ -C ₆₀ carbocyclic group, but as a ring-forming atom, carbon (the number of carbon atoms may be 1 to 60) other than carbon, N , means a group including at least one hetero atom selected from O, Si, P and S.

In the present specification, the substituted C ₅ -C ₆₀ carbocyclic group, a substituted C ₁ -C ₆₀ heterocyclic group, a substituted C ₆ -C ₆₀ arylene group, a substituted C ₁ -C ₆₀ heteroarylene group, Substituted divalent non-aromatic condensed polycyclic group, substituted divalent non-aromatic condensed polycyclic group, substituted C ₁ -C ₆₀ alkyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₁ -C ₆₀ hetero At least one of the substituents of the aryl group, the substituted monovalent non-aromatic condensed polycyclic group and the substituted monovalent non-aromatic condensed polycyclic group is,

Deuterium (-D), -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ - C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group and C ₁ -C ₆₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ hetero cycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heteroaryl cycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy, C ₆ -C ₆₀ aryl come T, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₁₁ )(Q ₁₂ )(Q ₁₃ ), -N(Q ₁₁ )(Q _{12 )} ), -B(Q ₁₁ )(Q ₁₂ ), -C(=O)(Q ₁₁ ), -S(=O) ₂ (Q ₁₁ ), and -P(=O)(Q ₁₁ )(Q ₁₂ ) _{a C 1} -C ₆₀ alkyl group, a C ₂ -C ₆₀ alkenyl group, a C ₂ -C ₆₀ alkynyl group and a C ₁ -C ₆₀ alkoxy group substituted with at least one selected from the group consisting of;

C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryl an oxy group, a C ₆ -C ₆₀ arylthio group, a C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group and a monovalent non-aromatic condensed heteropolycyclic group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group , C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocyclo alkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy, C ₆ -C ₆₀ arylthio, C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non- -Aromatic condensed heterocyclic polycyclic group, -Si(Q ₂₁ )(Q ₂₂ )(Q ₂₃ ), -N(Q ₂₁ )(Q ₂₂ ), -B(Q ₂₁ )(Q ₂₂ ), -C(=O) (Q ₂₁ ), -S(=O) ₂ (Q ₂₁ ) and -P(=O)(Q ₂₁ )(Q _{22 ), C 3} -C ₁₀ cycloalkyl group, C ₁ -C substituted with at least one selected from ₁₀ come heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heteroaryl cycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy, C ₆ -C ₆₀ aryl tea, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic condensed heteropolycyclic group; and

-Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N(Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )(Q ₃₂ ), -C(=O)(Q ₃₁ ), -S (=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )(Q ₃₂ );

is selected from

The Q ₁₁ to Q ₁₃ , Q ₂₁ to Q ₂₃ and Q ₃₁ to Q ₃₃ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group dino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic group It may be selected from a condensed polycyclic group, a monovalent non-aromatic heterocondensed polycyclic group, a biphenyl group and a terphenyl group.

In the present specification, "biphenyl group" means "a phenyl group substituted with a phenyl group". The "biphenyl group" belongs to a "substituted phenyl group" in which the substituent is a "C ₆ -C _{60 aryl group".}

In the present specification, "terphenyl group" means "a phenyl group substituted with a biphenyl group". The "terphenyl group" belongs to a "substituted phenyl group" in which the substituent is a "C ₆ -C ₆₀ aryl group substituted with a C ₆ -C _{60 aryl group".}

In the present specification, * and *', unless otherwise defined, refer to binding sites with neighboring atoms in the corresponding chemical formula.

As such, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. . Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

Claims (20)

Including; an organic light emitting device emitting a first color light;
The organic light emitting device may include an anode; an intermediate layer including a light emitting layer; and a cathode;
The first color light is emitted as a secondary resonance,
The CIEy value of the color coordinates of the first color light is 0.06 or less,
The first color light satisfies Equation 1 below:
<Equation 1>
(area of 455 nm or less in the electroluminescence spectrum of the first color light) / (total area of the electroluminescence spectrum of the first color light) × 100 ≤ 18 (%). According to claim 1,
The intermediate layer has a thickness of 170 nm to 180 nm. According to claim 1,
The light emitting layer includes a host and a dopant,
and the dopant emits the first color light. According to claim 1,
and the first color light is blue light. According to claim 1,
An organic light emitting display device, wherein the emission layer includes a condensed polycyclic compound represented by the following Chemical Formula 1:
<Formula 1>

In Formula 1,
A ₁₁ to A ₁₃ are each independently a substituted or unsubstituted C ₅ -C ₆₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₆₀ heterocyclic group,
X ₁₁ and X ₁₂ are each independently selected from O, N(R ₁₁ ), S and Se;
Y ₁₁ is selected from B, P, P=O, P=S, Al, Ga, As, Si(R ₁₂ ) and Ge(R ₁₂ );
R ₁₁ is a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₆ -C ₆₀ aryl group, a substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, a substituted or unsubstituted monovalent ratio - selected from a condensed aromatic polycyclic group and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group;
R ₁₂ is selected from a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₆ -C ₆₀ aryl group, and a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group. 6. The method of claim 5,
The condensed polycyclic compound represented by Formula 1 is an organic light emitting display device represented by Formula 1-1:
<Formula 1-1>

In Formula 1-1,
For descriptions of X ₁₁ , X ₁₂ and Y ₁₁ refer to Formula 1 above,
R ₂₁ to R ₃₁ are each independently hydrogen, deuterium (-D), -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazo No group, substituted or unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non- Condensed aromatic polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ), -B(Q) ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S(=O) ₂ (Q ₁ ) and -P(=O)(Q ₁ )(Q ₂ );
Q ₁ to Q ₃ are each independently selected from a C ₁ -C ₁₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group; and a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group substituted with at least one selected from a _{C 1} -C ₁₀ alkyl group and —N(Q ₃₁ )(Q _{32 );}
Q ₃₁ and Q ₃₂ are each independently selected from a C ₁ -C ₁₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group and a naphthyl group; and a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group substituted with a _{C 1} -C _{10 alkyl group;}
Two adjacent substituents among R ₂₁ to R ₃₁ may optionally combine with each other to form a ring. 6. The method of claim 5,
The condensed polycyclic compound represented by Formula 1 emits the first color light. According to claim 1,
The organic light emitting display device is a top emission organic light emitting display device. According to claim 1,
the anode is reflective or transflective;
and the cathode is a transmissive type. delete According to claim 1,
The first color light satisfies Equation 1-1 below:
<Equation 1-1>
(area of 455 nm or less in the electroluminescence spectrum of the first color light) / (total area of the electroluminescence spectrum of the first color light) x 100 ≤ 15 (%). According to claim 1,
_{The maximum emission wavelength (λ max} ) of the electroluminescence spectrum of the first color light is 458 nm to 470 nm. According to claim 1,
A full width at half maximum of the first color light is 35 nm or less. According to claim 1,
The electroluminescence spectrum of the first color light is an organic light emitting display device satisfying Equation 2:
<Equation 2>
｜λ _S - λ _max ｜< ｜λ _L - λ _max ｜
In Formula 2 above,
λ _max is a wavelength value representing the maximum emission intensity in the electroluminescence spectrum of the first color light (ie, the maximum emission wavelength);
λ _S is the smallest wavelength value among points where the electroluminescence spectrum of the first color light meets the x-axis;
λ _L is the largest wavelength value among points where the electroluminescence spectrum of the first color light meets the x-axis. According to claim 1,
The electroluminescence spectrum of the first color light is an organic light emitting display device satisfying Equation 3:
<Equation 3>
｜λ _0.1S - λ _max ｜< ｜λ _0.1L - λ _max ｜
In the above formula 3,
λ _max is a wavelength value representing the maximum emission intensity in the electroluminescence spectrum of the first color light (ie, the maximum emission wavelength);
λ _0.1S is the smallest wavelength value among points having a value of 10% of the maximum luminous intensity;
λ _0.1L is the largest wavelength value among points having a value of 10% of the maximum emission intensity. According to claim 1,
An electroluminescence spectrum of the first color light satisfies Equation 4 below:
<Equation 4>
｜λ _0.1L - λ _max ｜/｜λ _0.1S - λ _max ｜ ≤ 4.5
In Equation 4 above,
λ _max is a wavelength value representing the maximum emission intensity in the electroluminescence spectrum of the first color light (ie, the maximum emission wavelength);
λ _0.1S is the smallest wavelength value among points having a value of 10% of the maximum luminous intensity;
λ _0.1L is the largest wavelength value among points having a value of 10% of the maximum emission intensity. a substrate partitioned into a first light-emitting region, a second light-emitting area, and a third light-emitting area;
a first organic light emitting device disposed to correspond to the first light emitting region and emitting light of a first color;
a second organic light emitting device disposed to correspond to the second light emitting region and emitting light of a second color; and
a third organic light emitting device disposed to correspond to the third light emitting region and emitting light of a third color;
The first organic light emitting device may include an anode; an intermediate layer including a first light emitting layer; and a cathode;
The second organic light emitting device may include an anode; an intermediate layer including a second light emitting layer; and a cathode;
The third organic light emitting device may include an anode; an intermediate layer including a third light emitting layer; and a cathode;
the first color light is emitted as a secondary resonance;
the second color light and the third color light are emitted with a primary resonance or a secondary resonance;
The CIEy value of the color coordinates of the first color light is 0.06 or less,
The first color light satisfies Equation 1 below:
<Equation 1>
(area of 455 nm or less in the electroluminescence spectrum of the first color light) / (total area of the electroluminescence spectrum of the first color light) × 100 ≤ 18 (%). 18. The method of claim 17,
The first color light is blue light, the second color light is red light, and the third color light is green light. 18. The method of claim 17,
The first color light is emitted through secondary resonance, and the second color light and the third color light are emitted through primary resonance. 18. The method of claim 17,
the anode is reflective or transflective,
The cathode is a transmissive type organic light emitting display device.

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