Optical film and display device including the same

Abstract

This application relates to an optical film and a display device including the same. One embodiment provides an optical film that contains a dye or pigment that absorbs at least a part of light having a wavelength of 490 nm to 510 nm, has a transparent color under a CIE standard light source D65 light source satisfying -8 < a* < 8 and -8 < b* < 8, and satisfies Formula 1 and Formula 2 ([Formula 1] T%(500 nm) < T%(530 nm), [Formula 2] [T%(500 nm) × 1.8] < [T%(460 nm) + T%(610 nm)], and in Formula 1 and Formula 2, T%(A nm) means the transmittance at a wavelength of A nm).

Description

Technical Field

[0001] This specification relates to an optical film and a display device including the same.

[0002] This application claims the priority and benefit of Korean Patent Application No. 10-2020-0027240, filed with the Korean Intellectual Property Office on March 4, 2020, the entire contents of which are incorporated herein by reference. Background Art

[0003] An electrode in an organic light emitting diode (OLED) is made of a metal element, which causes a problem of significantly reducing the contrast of a display due to a high external light reflectance. In view of the above, a circular polarizing plate is laminated to suppress external light reflection. However, this method has disadvantages of increasing material costs, reducing flexibility, and being unable to flexibly adjust the hue of the emitted light color.

[0004] To replace the circular polarizing plate, a low-cost optical film for antireflection in which dyes and pigments are introduced into an adhesive film has been developed. Currently, such an optical film has poor viewing angle characteristics compared to the circular polarizing plate.

[0005] [Prior Art Documents]

[0006] (Patent Document 1) Korean Patent Application Laid-Open No. 2000-0011622 Summary of the Invention

[0007] Technical Problem

[0008] This specification aims to provide an optical film and a display device including the same.

[0009] Technical Solution

[0010] One embodiment of this specification provides an optical film, the optical film:

[0011] (1) contains a dye or pigment that absorbs at least some of wavelengths from 490 nm to 510 nm,

[0012] (2) has a transmitted color of a CIE standard light source D65 light source with -8 < a* < 8 and -8 < b* < 8, and

[0013] (3) satisfies the following Equation 1 and Equation 2:

[0014] [Equation 1]

[0015] T%(500 nm) < T%(530 nm),

[0016] [Equation 2]

[0017] [T%(500 nm) × 1.8] < [T%(460 nm) + T%(610 nm)]

[0018] In equation 1 and equation 2,

[0019] T% (A nm) means transmittance at a wavelength of A nm.

[0020] Another embodiment of the present specification provides a bonded optical filter including the optical film; and a surface treatment layer.

[0021] Another embodiment of the present specification provides a display device including the optical film.

[0022] Beneficial Effects

[0023] The optical film according to one embodiment of the present specification minimizes viewing angle-dependent color changes by effectively absorbing a 500 nm wavelength, and minimizes viewing angle-dependent color changes of white, green, yellow, and cyan (colors affected by green) when absorbing a 500 nm wavelength. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 and Figure 2 : is a graph showing wavelength-dependent absorption spectra of optical films according to embodiments.

[0025] Figure 3 : is a graph showing the wavelength-dependent absorption spectrum of the optical film according to the comparative example.

[0026] Figure 4 A structure when a release layer is provided on one surface of the adhesive film according to one embodiment of the present specification is shown.

[0027] Figure 5 The structure of a bonded optical filter according to one embodiment of the present specification is shown.

[0028] Figure 6 The structure of an OLED device, which is an example of a display device according to an embodiment of the present specification, is shown.

[0029] Figure 7 The structure of an OLED panel according to one embodiment of the present specification is shown.

[0030] Figure 8 An OLED device having a bottom emission structure and an OLED device having a top emission structure according to the present specification are illustrated.

[0031] Fig. 9 The structure of an OLED panel provided with a substrate having a color filter formed thereon according to the present specification is shown.

[0032] Fig.10A structure of a white OLED panel provided with a substrate in which a color filter including white pixels is formed according to the present specification is shown.

[0033] [reference numerals]

[0034] 1: Surface treatment layer

[0035] 2: Adhesive resin film

[0036] 3: Adhesive film

[0037] 4: Release layer

[0038] 10: Bonding filter

[0039] 11: Base

[0040] 12: Lower electrode

[0041] 13: Organic material layer

[0042] 14: Upper electrode

[0043] 15: Package substrate

[0044] 16: Substrate with color filter formed

[0045] 17: A substrate having a color filter including white pixels formed therein

[0046] 20: OLED panel

[0047] 30: OLED device DETAILED DESCRIPTION

[0048] One embodiment of the present specification provides an optical film, wherein:

[0049] (1) comprising a dye or pigment that absorbs at least some of the wavelengths between 490 nm and 510 nm,

[0050] (2) the transmitted color of the CIE standard illuminant D65 with -8<a*<8 and -8<b*<8,

[0051] and

[0052] (3) Satisfy the following equations 1 and 2:

[0053] [Formula 1]

[0054] T%(500nm)<T%(530nm),

[0055] [Formula 2]

[0056] [T%(500nm)×1.8]<[T%(460nm)+T%(610nm)]

[0057] In equation 1 and equation 2,

[0058] T% (A nm) means transmittance at a wavelength of A nm.

[0059] By an optical film satisfying the above conditions (1) to (3), color change associated with viewing angle can be minimized.

[0060] Specifically, a dye or pigment absorbing at least some of the wavelengths of 490 nm to 510 nm according to an embodiment of the present specification can minimize viewing angle-dependent color changes of white, green, yellow, and cyan (colors affected by green) by specifically absorbing the 500 nm wavelength.

[0061] In addition, when the optical film according to one embodiment of the present specification is used in an OLED device, external light reflection can be effectively suppressed without using a circular polarizing plate. Not using a circular polarizing plate in an OLED device has the advantages of saving material costs and appropriately maintaining the flexibility of the OLED device.

[0062] As the transmittance of the adhesive film decreases, the external light reflection of the OLED device can be effectively suppressed. However, when the transmittance of the adhesive film is excessively reduced, the brightness of the OLED panel may also decrease. However, when the adhesive composition according to the present specification is used in the OLED device, the transmittance of 30% to 90% is appropriately maintained while effectively suppressing the external light reflection, and therefore, the excellent brightness of the OLED panel can be maintained.

[0063] In this specification, the external light reflectance (Rc) of the OLED device may be calculated by the following mathematical formula.

[0064] [Mathematical formula]

[0065]

[0066] In mathematical formula,

[0067] Rs is the reflectivity of the surface treatment layer to light with a wavelength of 550nm (%),

[0068] Rp is the reflectivity (%) of the OLED panel to light with a wavelength of 550nm, and

[0069] T is the total transmittance (%) of the adhesive film and the surface treatment layer to light having a wavelength of 550 nm.

[0070] The reflectivity of the surface treatment layer can be measured using a CM-2600d colorimeter of Konica Minolta, Inc. after performing a blackening treatment or attaching a black tape on the surface opposite to the surface treatment layer to remove the influence of reflection at the interface of the surface opposite to the surface treatment layer. The reflectivity value including the specular reflectivity (SCI) can be obtained under the condition that the radius of the measurement diameter is 3 mm.

[0071] The reflectivity of the OLED panel can be measured using the same equipment and under the same conditions used to measure the reflectivity of the surface treatment layer. However, no separate blackening treatment is performed on the opposite surface of the emitting surface of the OLED panel.

[0072] In addition, the total transmittance of the adhesive film and the surface treatment layer may be measured using a transmittance measuring device (spectrometer) commonly used in the art.

[0073] The OLED panel included in the display device according to the present specification is a white OLED panel, and includes red (R) pixels, green (G) pixels, blue (B) pixels, and white pixels.

[0074] With existing RGB OLED panels, using an optical film having a maximum absorption wavelength in the region of 500nm and 590nm (the region between the emission peaks of R (about 620nm), G (about 530nm), and B (about 460nm)) is most preferred for reducing the panel reflectivity and minimizing the panel brightness loss.

[0075] OLED has a characteristic that the emission spectrum of each pixel shifts to a shorter wavelength as the viewing angle relative to the front increases, and thus the color changes. Such color changes caused by wavelength shift can be minimized by using dyes that absorb 500nm and 590nm wavelengths.

[0076] Meanwhile, since the white OLED has white pixels in addition to R, G, and B, when the wavelength region of 590 nm is strongly absorbed, the panel brightness may be reduced due to the absorption of light of the white pixels.

[0077] However, the white OLED panel according to the present specification strongly absorbs the wavelength region of 500 nm, and thus, the effects of improving reflectivity and viewing angle can be obtained while maintaining the brightness of the OLED panel.

[0078] In this specification, the unit of viewing angle is degree (°).

[0079] When a dye that absorbs a wavelength of 500 nm is used at a high concentration, the color of the optical film may be outside the neutral range. However, by making the optical film according to this specification satisfy conditions (1) to (3), a spectral form that can advantageously maintain the color of the optical film is obtained.

[0080] In one embodiment of this specification, the optical film has a transmitted color with -8 < a* < 8 and -7 < b* < 8.

[0081] In one embodiment of this specification, the optical film has a transmitted color with -7 ≤ a* ≤ 7.9 and -6.5 ≤ b* ≤ 7.

[0082] In one embodiment of this specification, the optical film has a transmitted color with -6.5 ≤ a* ≤ 7.7 and -6.5 ≤ b* ≤ 0.

[0083] In one embodiment of this specification, the optical film has a transmitted color with -6.49 ≤ a* ≤ 7.64 and -6.41 ≤ b* ≤ -0.35.

[0084] By making the optical film satisfy the above transmitted color range, an effect of suppressing the reddening or bluing of the optical film caused by absorption at a wavelength of 500 nm is obtained.

[0085] In one embodiment of this specification, a* indicates which direction the transmitted color is biased between red and green, and b* indicates which direction the transmitted color is biased between yellow and blue.

[0086] In this specification, an increase in the a* value means reddening.

[0087] In this specification, an increase in the b* value means yellowing.

[0088] In this specification, the transmitted color is based on the CIE 1976 color coordinates.

[0089] In one embodiment of this specification, the heat resistance reliability, damp heat resistance reliability, and light resistance reliability are each ΔY ≤ 3%p. The heat resistance reliability represents the change in the transmitted Y value as a percentage of the D65 light source in the CIE XYZ color space after 500 hours at a wavelength of 380 nm to 780 nm and 80 °C, the damp heat resistance reliability represents the change in the transmitted Y value as a percentage of the D65 light source in the CIE XYZ color space after 500 hours at a wavelength of 380 nm to 780 nm, 60 °C, and 90% relative humidity, and the light resistance reliability represents the change in the transmitted Y value as a percentage of the D65 light source in the CIE XYZ color space under the conditions of a wavelength of 380 nm to 780 nm and 22,500,000 lux*hours.

[0090] The transmittance Y value means the Y value among the three color X, Y, and Z values ​​of the CIE color coordinates.

[0091] The change in the transmittance Y value expressed as a percentage in terms of heat resistance reliability means subtracting the Y value (%) measured immediately after the optical film is prepared after storage at a wavelength of 380 nm to 780 nm and 80°C for 500 hours from the transmittance Y value (%) of the optical film measured immediately after the optical film is prepared.

[0092] The change in the transmittance Y value expressed as a percentage in terms of moisture and heat resistance reliability means subtracting the Y value (%) measured after storage for 500 hours at a wavelength of 380 nm to 780 nm, 60°C and a relative humidity of 90% from the transmittance Y value (%) of the optical film measured immediately after the optical film is prepared.

[0093] The change in the transmittance Y value expressed as a percentage in terms of light resistance reliability means subtracting the Y value (%) measured after storage for 48 hours at a wavelength of 380 nm to 780 nm, 50° C. or less and about 470,000 lux from the transmittance Y value (%) of the optical film measured immediately after the optical film is prepared.

[0094] By making heat resistance reliability, moist heat resistance reliability, and light resistance reliability satisfy ΔY≤3%p in the optical film according to the present specification, there is no change in transmission color and excellent reliability is obtained, thus enabling long-term use.

[0095] In one embodiment of the present specification, the dye or pigment is azo, metal-containing azo, quinoline, methine, coumarin, porphyrin, azaporphyrin, phthalocyanine, anthraquinone, perylene, squaric acid, type, benzopyrrole type or triazine type, or a mixture thereof.

[0096] Specifically, the dye or pigment is not particularly limited as long as it absorbs at least some of the wavelengths of 490 nm to 510 nm.

[0097] One embodiment of the present specification provides an optical film, wherein the dye or the pigment includes a compound represented by Chemical Formula 1 below.

[0098] [Chemical formula 1]

[0099]

[0100] In Chemical Formula 1,

[0101] X is Zn; Co; Ni; or Pd,

[0102] R1 to R6 and R8 to R13 are the same as or different from each other and are 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,

[0103] R7 and R14 are the same as or different from each other and are each independently hydrogen; substituted or unsubstituted alkyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; substituted or unsubstituted aryloxy; substituted or unsubstituted arylthio; substituted or unsubstituted heteroarylthio; or substituted or unsubstituted heteroaryloxy,

[0104] R, R', R", R'" and Rx are the same as or different from each other and are each independently hydrogen; substituted or unsubstituted alkyl; substituted or unsubstituted cycloalkyl; substituted or unsubstituted heterocyclyl; or substituted or unsubstituted aryl, or R' and R" are bonded to each other to form a ring, and

[0105] When R7 and R14 are hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, and R2, R5, R9 and R12 are -C(=O)OR'", R'' is substituted or unsubstituted aryl; substituted or unsubstituted cycloalkyl; substituted alkyl; or a branched unsubstituted alkyl having 3 to 30 carbon atoms.

[0106] In the present specification, the term "substituted or unsubstituted" means substituted with one, two or more substituents selected from the group consisting of a halogen group, an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, and a heterocyclic group, or substituted with a substituent in which two or more of the substituents exemplified above are linked, or having no substituent.

[0107] In the present specification, the halogen group may be fluorine, chlorine, bromine or iodine.

[0108] In the present specification, the alkyl group may be linear or branched, and although not particularly limited thereto, the number of carbon atoms is preferably 1 to 30. Specific examples thereof may include methyl, ethyl, propyl, isopropyl, butyl, heptyl and the like, but are not limited thereto.

[0109] In the present specification, the cycloalkyl group is not particularly limited but preferably has 3 to 30 carbon atoms, and specific examples thereof may include cyclopropyl, cyclobutyl, cyclopentyl, cycloheptyl, cyclooctyl and the like, but are not limited thereto.

[0110] In the present specification, the aryl group may be monocyclic or polycyclic.

[0111] When the aryl group is a monocyclic aryl group, the number of carbon atoms is not particularly limited, but is preferably 6 to 30. Specific examples of the monocyclic aryl group may include a phenyl group, a biphenyl group, a terphenyl group, and the like, but are not limited thereto.

[0112] When the aryl group is a polycyclic aryl group, the number of carbon atoms is not particularly limited, but is preferably 10 to 30. Specific examples of the polycyclic aryl group may include naphthyl, anthracenyl, phenanthrenyl, pyrenyl, peryl, fluorenyl, etc., but are not limited thereto.

[0113] In the present specification, the alkoxy group may be linear, branched or cyclic. The number of carbon atoms of the alkoxy group is not particularly limited, but is preferably 1 to 20. Specific examples thereof may include methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, tert-butoxy, sec-butoxy, n-pentoxy, neopentoxy, isopentyloxy, n-hexyloxy, 3,3-dimethylbutoxy, 2-ethylbutoxy, n-octyloxy, n-nonyloxy, n-decyloxy, benzyloxy, p-methylbenzyloxy, etc., but are not limited thereto.

[0114] In the present specification, the aryl in the aryloxy and arylthio groups is the same as the example of the above-mentioned aryl group. Specific examples of aryloxy groups may include phenoxy, p-tolyloxy, m-tolyloxy, 3,5-dimethyl-phenoxy, 2,4,6-trimethylphenoxy, p-tert-butylphenoxy, 3-biphenyloxy, 4-biphenyloxy, 1-naphthyloxy, 2-naphthyloxy, 4-methyl-1-naphthyloxy, 5-methyl-2-naphthyloxy, 1-anthraceneoxy, 2-anthraceneoxy, 9-anthraceneoxy, 1-phenanthrenoxy, 3-phenanthrenoxy, 9-phenanthrenoxy, etc., and specific examples of arylthio groups may include phenylthio, 2-methylphenylthio, 4-tert-butylphenylthio, etc., however, aryloxy and arylthio groups are not limited thereto.

[0115] In the present specification, a heterocyclic group is a group containing one or more non-carbon atoms, i.e., heteroatoms, and specifically, the heteroatoms may include one or more atoms selected from O, N, Se, S, etc. The number of carbon atoms is not particularly limited, but is preferably 2 to 30, and the heterocyclic group may be monocyclic or polycyclic. Examples of heterocyclic groups may include thienyl, pyridyl, pyrimidyl, triazine, benzothienyl, dibenzothienyl, benzofuranyl, dibenzofuranyl, etc., but are not limited thereto.

[0116] In the present specification, the heteroaryl group means an aromatic group in a heterocyclic group.

[0117] In the present specification, the alkyl group in the alkylthio group is the same as the examples of the alkyl group described above. Specific examples of the alkylthio group may include methylthio, ethylthio, tert-butylthio, hexylthio, octylthio, etc., but are not limited thereto.

[0118] In the present specification, the aryl group in the arylthio group is the same as the examples of the aryl group described above.

[0119] In one embodiment of the present specification, the coumarin group and the chromone group are respectively express.

[0120] In the present specification, the heteroaryl group in the heteroaryloxy group and the heteroarylthio group is the same as the examples of the heteroaryl group described above.

[0121] In one embodiment of the present specification, X is Zn; Co; Ni; or Pd.

[0122] In one embodiment of the present specification, X is Zn.

[0123] In one embodiment of the present specification, X is Co.

[0124] In one embodiment of the present specification, X is Pd.

[0125] In one embodiment of the present specification, X is Ni.

[0126] In one embodiment of the present specification, R1 to R6 and R8 to R13 are the same as or different from each other, and are 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.

[0127] In one embodiment of the present specification, R1 to R6 and R8 to R13 are the same as or different from each other and are 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 having 1 to 30 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms; a substituted or unsubstituted aryl group having 6 to 30 carbon atoms; a substituted or an unsubstituted alkoxy group having 1 to 30 carbon atoms; a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms; a substituted or unsubstituted heteroaryloxy group having 2 to 30 carbon atoms; a substituted or unsubstituted alkylthio group having 1 to 30 carbon atoms; a substituted or unsubstituted arylthio group having 6 to 30 carbon atoms; a substituted or unsubstituted heteroarylthio group having 2 to 30 carbon atoms; or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms.

[0128] In one embodiment of the present specification, R1 to R6 and R8 to R13 are the same as or different from each other and are 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 having 1 to 20 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 20 carbon atoms; a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; a substituted or an unsubstituted alkoxy group having 1 to 20 carbon atoms; a substituted or unsubstituted aryloxy group having 6 to 20 carbon atoms; a substituted or unsubstituted heteroaryloxy group having 2 to 20 carbon atoms; a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms; a substituted or unsubstituted arylthio group having 6 to 20 carbon atoms; a substituted or unsubstituted heteroarylthio group having 2 to 20 carbon atoms; or a substituted or unsubstituted heteroaryl group having 2 to 20 carbon atoms.

[0129] In one embodiment of the present specification, R1 to R6 and R8 to R13 are the same as or different from each other and are 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 having 1 to 10 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms; a substituted or unsubstituted aryl group having 6 to 12 carbon atoms; a substituted or an unsubstituted alkoxy group having 1 to 10 carbon atoms; a substituted or unsubstituted aryloxy group having 6 to 12 carbon atoms; a substituted or unsubstituted heteroaryloxy group having 2 to 10 carbon atoms; a substituted or unsubstituted alkylthio group having 1 to 10 carbon atoms; a substituted or unsubstituted arylthio group having 6 to 12 carbon atoms; a substituted or unsubstituted heteroarylthio group having 2 to 12 carbon atoms; or a substituted or unsubstituted heteroaryl group having 2 to 12 carbon atoms.

[0130] In one embodiment of the present specification, R7 and R14 are the same as or different from each other, and are each independently hydrogen; substituted or unsubstituted alkyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; substituted or unsubstituted aryloxy; substituted or unsubstituted arylthio; substituted or unsubstituted heteroarylthio; or substituted or unsubstituted heteroaryloxy.

[0131] In one embodiment of the present specification, R7 and R14 are the same as or different from each other and are each independently hydrogen; a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms; a substituted or unsubstituted aryl group having 6 to 30 carbon atoms; a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms; a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms; a substituted or unsubstituted arylthio group having 6 to 30 carbon atoms; a substituted or unsubstituted heteroarylthio group having 2 to 30 carbon atoms; or a substituted or unsubstituted heteroaryloxy group having 2 to 30 carbon atoms.

[0132] In one embodiment of the present specification, R7 and R14 are the same as or different from each other and are each independently hydrogen; a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms; a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; a substituted or unsubstituted heteroaryl group having 2 to 20 carbon atoms; a substituted or unsubstituted aryloxy group having 6 to 20 carbon atoms; a substituted or unsubstituted arylthio group having 6 to 20 carbon atoms; a heteroarylthio group having 2 to 20 carbon atoms; or a substituted or unsubstituted heteroaryloxy group having 2 to 20 carbon atoms.

[0133] In one embodiment of the present specification, R7 and R14 are the same as or different from each other and are each independently hydrogen; a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms; a substituted or unsubstituted aryl group having 6 to 12 carbon atoms; a substituted or unsubstituted heteroaryl group having 2 to 10 carbon atoms; a substituted or unsubstituted aryloxy group having 6 to 12 carbon atoms; a substituted or unsubstituted arylthio group having 6 to 12 carbon atoms; a heteroarylthio group having 2 to 12 carbon atoms; or a substituted or unsubstituted heteroaryloxy group having 2 to 10 carbon atoms.

[0134] In one embodiment of the present specification, R, R', R", R'" and Rx are the same as or different from each other, and are each independently hydrogen; substituted or unsubstituted alkyl; substituted or unsubstituted cycloalkyl; substituted or unsubstituted heterocyclyl; or substituted or unsubstituted aryl, or R' and R" are bonded to each other to form a ring.

[0135] In one embodiment of the present specification, R, R', R", R'" and Rx are the same as or different from each other and are each independently hydrogen; a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms; a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms; or a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or R' and R" are bonded to each other to form an O-containing hydrocarbon ring.

[0136] In one embodiment of the present specification, R, R', R", R'" and Rx are the same as or different from each other and are each independently hydrogen; a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 20 carbon atoms; a substituted or unsubstituted heteroaryl group having 2 to 20 carbon atoms; or a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, or R' and R" are bonded to each other to form an O-containing hydrocarbon ring.

[0137] In one embodiment of the present specification, R, R', R", R'" and Rx are the same as or different from each other and are each independently hydrogen; a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms; a substituted or unsubstituted heteroaryl group having 2 to 10 carbon atoms; or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, or R' and R" are bonded to each other to form an O-containing hydrocarbon ring.

[0138] In one embodiment of the present specification, R1 to R6, R8 to R13 are the same as or different from each other, and are each independently hydrogen; deuterium; fluorine; nitrile; nitro; -(C=O)NR'R"; -(C=O)OR"'; -(C=O)Rx; substituted or unsubstituted methyl; substituted or unsubstituted isopropyl; substituted or unsubstituted cyclopentyl; substituted or unsubstituted cyclohexyl; substituted or unsubstituted phenyl; or substituted or unsubstituted dibenzofuranyl.

[0139] In one embodiment of the present specification, R1 to R6, R8 to R13 are the same as or different from each other, and are each independently hydrogen; fluorine; nitrile; nitro; -(C=O)NR'R"; -(C=O)OR"'; -(C=O)Rx; methyl; trifluoromethyl; isopropyl; cyclopentyl substituted with methyl; cyclohexyl unsubstituted or substituted with methyl or isopropyl; phenyl substituted with trifluoromethyl; or dibenzofuranyl.

[0140] In one embodiment of the present specification, R1, R6, R8 and R13 are the same as or different from each other, and are each independently hydrogen; deuterium; substituted or unsubstituted alkyl; or substituted or unsubstituted cycloalkyl.

[0141] In one embodiment of the present specification, R1, R6, R8 and R13 are the same as or different from each other, and are each independently hydrogen; deuterium; a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms; or a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms.

[0142] In one embodiment of the present specification, R1, R6, R8 and R13 are the same as or different from each other, and are each independently hydrogen; deuterium; a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms; or a substituted or unsubstituted cycloalkyl group having 3 to 20 carbon atoms.

[0143] In one embodiment of the present specification, R1, R6, R8 and R13 are the same as or different from each other, and are each independently hydrogen; deuterium; a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms; or a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms.

[0144] In one embodiment of the present specification, R1, R6, R8 and R13 are the same as or different from each other, and are each independently hydrogen; a substituted or unsubstituted methyl; or a substituted or unsubstituted cyclohexyl.

[0145] In one embodiment of the present specification, R1, R6, R8 and R13 are the same as or different from each other, and are each independently hydrogen; methyl; or cyclohexyl which is unsubstituted or substituted with methyl or isopropyl.

[0146] In one embodiment of the present specification, at least one of R2, R5, R9 and R12 is a halogen group; a nitrile group; a nitro group; -(C=O)NR'R"; -(C=O)OR"'; -(C=O)Rx; a substituted or unsubstituted aryl group; a substituted or unsubstituted heteroaryl group; or an alkyl group substituted with fluorine.

[0147] In one embodiment of the present specification, at least one of R2, R5, R9 and R12 is chlorine; fluorine; bromine; iodine; nitrile; nitro; -(C=O)NR'R"; -(C=O)OR"'; -(C=O)Rx; substituted or unsubstituted aryl having 6 to 30 carbon atoms; substituted or unsubstituted heteroaryl having 3 to 30 carbon atoms; or fluorine-substituted alkyl having 1 to 30 carbon atoms.

[0148] In one embodiment of the present specification, at least one of R2, R5, R9 and R12 is chlorine; fluorine; bromine; iodine; nitrile; nitro; -(C=O)NR'R"; -(C=O)OR"'; -(C=O)Rx; substituted or unsubstituted aryl having 6 to 20 carbon atoms; substituted or unsubstituted heteroaryl having 3 to 20 carbon atoms; or fluorine-substituted alkyl having 1 to 20 carbon atoms.

[0149] In one embodiment of the present specification, at least one of R2, R5, R9 and R12 is chlorine; fluorine; bromine; iodine; nitrile; nitro; -(C=O)NR'R"; -(C=O)OR"'; -(C=O)Rx; substituted or unsubstituted aryl having 6 to 12 carbon atoms; substituted or unsubstituted heteroaryl having 3 to 12 carbon atoms; or fluorine-substituted alkyl having 1 to 10 carbon atoms.

[0150] In one embodiment of the present specification, at least one of R2, R5, R9 and R12 is chlorine; fluorine; bromine; iodine; nitrile; nitro; -(C=O)NR'R"; -(C=O)OR"'; -(C=O)Rx; phenyl substituted with trifluoromethyl; or methyl substituted with fluorine.

[0151] In one embodiment of the present specification, at least one of R2, R5, R9 and R12 is chlorine, fluorine, bromine, iodine, nitrile, phenyl substituted with trifluoromethyl, -(C=O)OR"', or -CONR'R".

[0152] In one embodiment of the present specification, R, R', R", R'" and Rx are the same as or different from each other, and are each independently hydrogen; a substituted or unsubstituted methyl; a substituted or unsubstituted ethyl; a substituted or unsubstituted cyclohexyl; or a substituted or unsubstituted phenyl, or R' and R" are bonded to each other to form a morpholinyl group.

[0153] In one embodiment of the present specification, R, R', R", R'" and Rx are the same as or different from each other and are each independently hydrogen; methyl; ethyl; methyl substituted by an alkoxy group; methyl substituted by a phenyl substituted with a nitro group; phenyl; phenyl substituted by a nitro group; phenyl substituted by a tert-butyl group; or phenyl substituted by a nitrile group, or R' and R" are bonded to each other to form a morpholinyl group.

[0154] In one embodiment of the present specification, R'' is methyl; ethyl; methyl substituted by an alkoxy group; methyl substituted by a phenyl substituted with a nitro group; phenyl substituted by a nitro group; phenyl substituted by a tert-butyl group; or phenyl substituted by a nitrile group.

[0155] The alkoxy-substituted methyl group can be represented by any of the following chemical formulas.

[0156]

[0157] In the chemical formula, *- means a site for bonding to other substituents or bonding sites.

[0158] The methyl group substituted by an alkoxy group may also be substituted by a methoxy group.

[0159] In one embodiment of the present specification, R' and R" are the same as or different from each other and are each independently hydrogen; methyl; methyl substituted with phenyl substituted with nitro; methyl substituted with methoxy; ethyl; cyclohexyl; phenyl substituted with nitro; or phenyl, or are bonded to each other to form a morpholino group.

[0160] In one embodiment of the present specification, Rx is hydrogen.

[0161] In one embodiment of the present specification, R3, R4, R10 and R11 are the same as or different from each other, and are each independently hydrogen; a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms; or a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms.

[0162] In one embodiment of the present specification, R3, R4, R10 and R11 are the same as or different from each other, and are each independently hydrogen; a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms; or a substituted or unsubstituted cycloalkyl group having 3 to 20 carbon atoms.

[0163] In one embodiment of the present specification, R3, R4, R10 and R11 are the same as or different from each other, and are each independently hydrogen; a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms; or a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms.

[0164] In one embodiment of the present specification, R3, R4, R10 and R11 are the same as or different from each other, and are each independently hydrogen; substituted or unsubstituted methyl; substituted or unsubstituted isopropyl; substituted or unsubstituted cyclopentyl; or substituted or unsubstituted cyclohexyl.

[0165] In one embodiment of the present specification, R3, R4, R10 and R11 are the same as or different from each other, and are each independently hydrogen; methyl; isopropyl; cyclopentyl substituted with methyl; or cyclohexyl which is unsubstituted or substituted with methyl or isopropyl.

[0166] In one embodiment of the present specification, R7 and R14 are the same as or different from each other, and are each independently hydrogen; substituted or unsubstituted phenyl; substituted or unsubstituted biphenyl; substituted or unsubstituted naphthyl; substituted or unsubstituted pyridyl; or substituted or unsubstituted dibenzofuranyl.

[0167] In one embodiment of the present specification, R7 and R14 are the same as or different from each other and are each independently hydrogen; phenyl which is unsubstituted or substituted with fluorine, nitrile, methyl, trifluoromethyl, tert-butyl or methoxy; substituted or unsubstituted biphenyl; substituted or unsubstituted naphthyl; substituted or unsubstituted pyridyl; or substituted or unsubstituted dibenzofuranyl.

[0168] In one embodiment of the present specification, R7 and R14 are the same as or different from each other and are each independently hydrogen; phenyl which is unsubstituted or substituted with fluorine, nitrile, methyl, trifluoromethyl, tert-butyl or methoxy; biphenyl which is substituted with methyl; naphthyl; pyridyl; or dibenzofuranyl.

[0169] In one embodiment of the present specification, at least one of R3, R4, R10 and R11 is a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted heteroaryloxy group; a substituted or unsubstituted arylthio group; a substituted or unsubstituted heteroarylthio group; or a substituted or unsubstituted alkylthio group.

[0170] In one embodiment of the present specification, at least one of R3, R4, R10 and R11 is a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms; a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms; a substituted or unsubstituted heteroaryloxy group having 2 to 30 carbon atoms; a substituted or unsubstituted arylthio group having 6 to 30 carbon atoms; a substituted or unsubstituted heteroarylthio group having 2 to 30 carbon atoms; or a substituted or unsubstituted alkylthio group having 1 to 30 carbon atoms.

[0171] In one embodiment of the present specification, at least one of R3, R4, R10 and R11 is a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms; a substituted or unsubstituted aryloxy group having 6 to 20 carbon atoms; a substituted or unsubstituted heteroaryloxy group having 2 to 20 carbon atoms; a substituted or unsubstituted arylthio group having 6 to 20 carbon atoms; a substituted or unsubstituted heteroarylthio group having 2 to 20 carbon atoms; or a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms.

[0172] In one embodiment of the present specification, at least one of R3, R4, R10 and R11 is a substituted or unsubstituted alkoxy group having 1 to 10 carbon atoms; a substituted or unsubstituted aryloxy group having 6 to 12 carbon atoms; a substituted or unsubstituted heteroaryloxy group having 2 to 10 carbon atoms; a substituted or unsubstituted arylthio group having 6 to 12 carbon atoms; a substituted or unsubstituted heteroarylthio group having 2 to 10 carbon atoms; or a substituted or unsubstituted alkylthio group having 1 to 10 carbon atoms.

[0173] In one embodiment of the present specification, at least one of R3, R4, R10 and R11 is a substituted or unsubstituted phenoxy group; a substituted or unsubstituted isopropoxy group; a substituted or unsubstituted ethoxy group; a substituted or unsubstituted phenylthio group; a substituted or unsubstituted pyridylthio group; a substituted or unsubstituted isopropylthio group; or a substituted or unsubstituted pyridyloxy group.

[0174] In one embodiment of the present specification, at least one of R3, R4, R10 and R11 is unsubstituted or substituted with ethyl, tert-butyl, methoxy, fluorine, nitrile, nitro or trifluoromethyl phenoxy; fluorine-substituted isopropoxy; fluorine-substituted ethoxy; chlorine-substituted phenylthio; pyridylthio; isopropylthio; or pyridyloxy.

[0175] In one embodiment of the present specification, R1, R6, R8 and R13 are the same as or different from each other, and are each independently hydrogen; methyl; cyclopentyl; cyclohexyl; isopropylthio; phenoxy substituted with a nitrile group; or phenylthio substituted with chlorine.

[0176] In one embodiment of the present specification, R2, R5, R9 and R12 are the same as or different from each other, and are each independently hydrogen; a halogen group; a nitrile group; a substituted or unsubstituted phenyl group; -(C=O)NR'R"; or -(C=O)OR"'.

[0177] In one embodiment of the present specification, R2, R5, R9 and R12 are the same as or different from each other, and are each independently hydrogen; chlorine; fluorine; bromine; iodine; nitrile; substituted or unsubstituted phenyl; -(C=O)NR'R"; or -(C=O)OR"'.

[0178] In one embodiment of the present specification, R2, R5, R9 and R12 are the same as or different from each other, and are each independently hydrogen; chlorine; fluorine; bromine; iodine; nitrile; phenyl substituted with trifluoromethyl; -(C=O)NR'R"; or -(C=O)OR"'.

[0179] In one embodiment of the present specification, R', R", and R'" are the same as or different from each other, and are each independently a substituted or unsubstituted alkyl group; or a substituted or unsubstituted heteroaryl group.

[0180] In one embodiment of the present specification, R', R", and R'" are the same as or different from each other, and are each independently a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms; or a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms.

[0181] In one embodiment of the present specification, R', R", and R'" are the same as or different from each other, and are each independently a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms; or a substituted or unsubstituted heteroaryl group having 3 to 20 carbon atoms.

[0182] In one embodiment of the present specification, R', R", and R'" are the same as or different from each other, and are each independently a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms; or a substituted or unsubstituted heteroaryl group having 3 to 10 carbon atoms.

[0183] In one embodiment of the present specification, R', R", and R'" are the same as or different from each other, and are each independently a substituted or unsubstituted methyl group; a substituted or unsubstituted ethyl group; or a substituted or unsubstituted coumarin group.

[0184] In one embodiment of the present specification, R', R", and R'" are the same as or different from each other, and are each independently a methyl group; a methyl group substituted with a phenyl group substituted with a nitro group; an ethyl group; or a coumarin group.

[0185] In one embodiment of the present specification, R is a methyl group substituted with a phenyl group substituted with a nitro group; an ethyl group; or a coumarin group.

[0186] In one embodiment of the present specification, R' and R" are methyl groups.

[0187] In one embodiment of the present specification, R7 and R14 are the same as or different from each other, and are each independently hydrogen; deuterium; substituted or unsubstituted alkyl; substituted or unsubstituted aryl; or substituted or unsubstituted heteroaryl.

[0188] In one embodiment of the present specification, R7 and R14 are the same as or different from each other, and are each independently hydrogen; deuterium; a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms; a substituted or unsubstituted aryl group having 6 to 30 carbon atoms; or a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms.

[0189] In one embodiment of the present specification, R7 and R14 are the same as or different from each other, and are each independently hydrogen; deuterium; a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms; a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; or a substituted or unsubstituted heteroaryl group having 3 to 20 carbon atoms.

[0190] In one embodiment of the present specification, R7 and R14 are the same as or different from each other, and are each independently hydrogen; deuterium; a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms; a substituted or unsubstituted aryl group having 6 to 12 carbon atoms; or a substituted or unsubstituted heteroaryl group having 3 to 10 carbon atoms.

[0191] In one embodiment of the present specification, R7 and R14 are the same as or different from each other, and are each independently hydrogen; substituted or unsubstituted methyl; substituted or unsubstituted phenyl; substituted or unsubstituted pyridyl; substituted or unsubstituted dibenzofuranyl; substituted or unsubstituted quinolyl; substituted or unsubstituted furanyl; substituted or unsubstituted thienyl; or substituted or unsubstituted benzofuranyl.

[0192] In one embodiment of the present specification, R7 and R14 are the same as or different from each other and are each independently hydrogen; methyl; trifluoromethyl; phenyl which is unsubstituted or substituted with fluorine, methyl, trifluoromethyl, tert-butyl or methoxy; pyridyl; dibenzofuranyl; quinolyl; furanyl; thienyl; or benzofuranyl.

[0193] In one embodiment of the present specification, R7 and R14 are the same as or different from each other and are each independently hydrogen; methyl; trifluoromethyl; phenyl; phenyl substituted with fluorine; phenyl substituted with methyl; phenyl substituted with trifluoromethyl; phenyl substituted with tert-butyl; phenyl substituted with methyl and methoxy; phenyl substituted with methyl and tert-butyl; pyridyl; dibenzofuranyl; quinolyl; furanyl; thienyl; or benzofuranyl.

[0194] In one embodiment of the present specification, when R7 and R14 are hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, and R2, R5, R9 and R12 are -C(=O)OR"', R"' is substituted or unsubstituted aryl; substituted or unsubstituted cycloalkyl; substituted alkyl; or a branched unsubstituted alkyl having 3 to 30 carbon atoms.

[0195] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR'' and R''' is a substituted alkyl group, it means an alkyl group substituted with at least one substituent other than an alkyl group.

[0196] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR'" and R'" is a substituted alkyl group, it is an alkyl group substituted with a halogen group, a nitrile group, a nitro group, an alkyl group substituted with a halogen group, an alkyl group substituted with an alkoxy group, -C(=O)OR, -(C=O)NR'R" or -CHO, and R, R' and R" are the same as described above.

[0197] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR"' and R"' is a substituted alkyl group, it is an ethoxy group substituted with a methoxy group, a methyl group substituted with a methoxy group, a phenyl group substituted with a nitro group, a methoxy group, a trifluoromethyl group or an alkyl group having 1 to 30 carbon atoms.

[0198] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR"' and R"' is a substituted alkyl group, it is an ethoxy group substituted with a methoxy group, a methyl group substituted with a methoxy group, a phenyl group substituted with a nitro group, a methoxy group, a trifluoromethyl group or an alkyl group having 1 to 20 carbon atoms.

[0199] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR"' and R"' is a substituted alkyl group, it is an ethoxy group substituted with a methoxy group, a methyl group substituted with a methoxy group, a phenyl group substituted with a nitro group, a methoxy group, a trifluoromethyl group or an alkyl group having 1 to 10 carbon atoms.

[0200] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR"' and R"' is a substituted alkyl group, it is an ethoxy group substituted with a methoxy group, a methyl group substituted with a methoxy group, a phenyl group substituted with a nitro group, a methoxy group, a trifluoromethyl group or an alkyl group having 1 to 5 carbon atoms.

[0201] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR"' and R"' is a substituted alkyl group, it is an ethoxy group substituted with a methoxy group, a phenyl group substituted with a nitro group, a methoxy group, a trifluoromethyl group or a methyl group substituted with a nitrile group; or an n-propyl group substituted with a methyl group substituted with a methoxy group.

[0202] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR'' and R''' is a branched unsubstituted alkyl group having 3 to 30 carbon atoms, R is preferably a 1-ethylpropyl group; or a 2-ethylhexyl group.

[0203] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR"', R"' is a substituted or unsubstituted aryl group having 6 to 30 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms; a substituted alkyl group having 1 to 30 carbon atoms; or a branched unsubstituted alkyl group having 3 to 30 carbon atoms.

[0204] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR"', R"' is a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 20 carbon atoms; a substituted alkyl group having 1 to 20 carbon atoms; or a branched unsubstituted alkyl group having 3 to 20 carbon atoms.

[0205] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR"', R"' is a substituted or unsubstituted aryl group having 6 to 12 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms; a substituted alkyl group having 1 to 10 carbon atoms; or a branched unsubstituted alkyl group having 3 to 10 carbon atoms.

[0206] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR'", R'' is substituted or unsubstituted phenyl; substituted or unsubstituted cyclohexyl; substituted methyl; substituted ethyl; substituted n-propyl; 1-ethylpropyl; or 2-ethylhexyl.

[0207] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR'', R''' is substituted or unsubstituted phenyl; substituted or unsubstituted cyclohexyl; substituted methyl; 1-ethylpropyl; or 2-ethylhexyl.

[0208] In one embodiment of the present specification, when R2, R5, R9 and R12 are -C(=O)OR"', R"' is phenyl substituted with fluorine or trifluoromethyl; cyclohexyl substituted with one or more selected from methyl and isopropyl; methyl substituted with nitrile; ethyl substituted with fluorine; isopropyl substituted with fluorine; n-propyl substituted with methyl substituted with methoxy; 1-ethylpropyl; or 2-ethylhexyl.

[0209] In one embodiment of the present specification, Chemical Formula 1 may be represented by the following Chemical Formula 1-1.

[0210] [Chemical formula 1-1]

[0211]

[0212] In Chemical Formula 1-1,

[0213] R1, R2, R5, R6, R8, R9, R12 and R13 are the same as or different from each other and are each independently hydrogen; a halogen group; an aldehyde group; a nitrile group; a nitro group; a substituted or unsubstituted ester group; a substituted or unsubstituted amide group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted arylthio group; or a substituted or unsubstituted heteroaryl group,

[0214] R3, R4, R10 and R11 are each independently hydrogen; substituted or unsubstituted alkyl; or substituted or unsubstituted cycloalkyl,

[0215] L1 and L2 are the same or different from each other and are each independently O or S,

[0216] R100 and R200 are the same as or different from each other and are each independently a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group, and

[0217] X is Zn, Co, Ni or Pd.

[0218] In one embodiment of the present specification, R1, R2, R5, R6, R8, R9, R12 and R13 are the same as or different from each other and are each independently hydrogen; a halogen group; a nitrile group; a nitro group; -CHO; -COOR; -(C=O)NR'R"; a linear or branched alkyl group; a fluoroalkyl group; an unsubstituted or alkyl-substituted cycloalkyl group; an aryl group that is unsubstituted or substituted with one or more substituents selected from a nitrile group, a halogen group, an alkyl group and a fluoroalkyl group; a polycyclic heterocyclic group; an aryloxy group that is unsubstituted or substituted with one or more substituents selected from a halogen group and an alkyl group; or an arylthio group that is unsubstituted or substituted with one or more substituents selected from a halogen group and an alkyl group, and R, R' and R" are the same as or different from each other and are each independently substituted or unsubstituted alkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group, and R' and R" may be bonded to each other to form a ring.

[0219] In one embodiment of the present specification, R1, R2, R5, R6, R8, R9, R12 and R13 are each hydrogen; a halogen group; a nitrile group; a nitro group; -CHO; -COOR; -(C=O)NR'R"; C1-C 10 Alkyl; C1-C 10 Fluoroalkyl; C3-C 12 Cycloalkyl; C5-C 15 Alkylcycloalkyl; unsubstituted or selected from nitrile, halogen, C1-C 10 Aryl substituted with one or more substituents selected from alkyl and fluoroalkyl; C6-C 10 Aryloxy; unsubstituted or substituted with one or more substituents selected from alkyl and halogen groups C6-C 10 or a heteroaryl group containing O, and R, R' and R" are each C1-C 10 Alkyl; C5-C 15 Alkyl aryl; or C5-C 15 Nitroaryl.

[0220] In one embodiment of the present specification, R1, R2, R5, R6, R8, R9, R12 and R13 are each hydrogen; fluorine; chlorine; bromine; -CN; -NO2; -CHO; -COOR; -(C=O)NR'R"; C1-C5 alkyl; C1-C5 fluoroalkyl; C3-C8 cycloalkyl; C5-C 10 alkylcycloalkyl; phenyl which is unsubstituted or substituted with one or more substituents selected from -CN, fluorine, C1-C5 alkyl and trifluoroalkyl; phenoxy which is unsubstituted or substituted with one or more substituents selected from C1-C5 alkyl, fluorine, chlorine and bromine; phenylthio which is unsubstituted or substituted with one or more substituents selected from C1-C5 alkyl, fluorine, chlorine and bromine; or a polycyclic heteroaryl containing O, and R, R' and R" are each C1-C5 alkyl; C8-C 12 Alkyl aryl; or C8-C 12 Nitroaryl.

[0221] In one embodiment of the present specification, R1, R2, R5, R6, R8, R9, R12 and R13 are each hydrogen; fluorine; chlorine; bromine; -CN; -NO2; -CHO; -COOR; -(C=O)NR'R"; methyl; ethyl; propyl; tert-butyl; -CF3; cyclopropyl; cyclobutyl; cyclopentyl; cyclohexyl; methylcyclohexyl; propylcyclohexyl; phenyl unsubstituted or substituted with -CN, fluorine, methyl, ethyl, propyl, tert-butyl or -CF3; phenoxy substituted with tert-butyl or fluorine; phenylthio substituted with chlorine; or dibenzofuranyl, and R, R' and R" are each methyl; ethyl; tert-butylphenyl; or nitrophenyl.

[0222] In one embodiment of the present specification, Chemical Formula 1-1 is any one of the following Chemical Formulas 1-1-1 to 1-1-8.

[0223] [Chemical formula 1-1-1]

[0224]

[0225] [Chemical formula 1-1-2]

[0226]

[0227] [Chemical formula 1-1-3]

[0228]

[0229] [Chemical formula 1-1-4]

[0230]

[0231] [Chemical formula 1-1-5]

[0232]

[0233] [Chemical formula 1-1-6]

[0234]

[0235] [Chemical formula 1-1-7]

[0236]

[0237] [Chemical formula 1-1-8]

[0238]

[0239] In Chemical Formulas 1-1-1 to 1-1-8,

[0240] Each substituent has the same definition as in Chemical Formula 1-1.

[0241] In one embodiment of the present specification, R3, R4, R10 and R11 are the same as or different from each other, and are each independently hydrogen; a linear or branched alkyl group; or an unsubstituted or alkyl-substituted cycloalkyl group.

[0242] In one embodiment of the present specification, R3, R4, R10 and R11 are each hydrogen.

[0243] In one embodiment of the present specification, R3, R4, R10 and R11 are each C1-C 10 alkyl.

[0244] In one embodiment of the present specification, R3, R4, R10 and R11 are each C1-C 10 Linear alkyl.

[0245] In one embodiment of the present specification, R3, R4, R10 and R11 are each a C1-C5 alkyl group.

[0246] In one embodiment of the present specification, R3, R4, R10 and R11 are each a C1-C5 linear alkyl group.

[0247] In one embodiment of the present specification, R3, R4, R10 and R11 are each a C1-C3 alkyl group.

[0248] In one embodiment of the present specification, R3, R4, R10 and R11 are each a C1-C3 linear alkyl group.

[0249] In one embodiment of the present specification, R3, R4, R10 and R11 are each a methyl group or a propyl group.

[0250] In one embodiment of the present specification, R3, R4, R10 and R11 are each unsubstituted or substituted with C1-C 10 Alkyl substituted cycloalkyl.

[0251] In one embodiment of the present specification, R3, R4, R10 and R11 are each C3-C 12 Cycloalkyl.

[0252] In one embodiment of the present specification, R3, R4, R10 and R11 are each a C3-C8 cycloalkyl group.

[0253] In one embodiment of the present specification, R3, R4, R10 and R11 are each cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl.

[0254] In one embodiment of the present specification, R3, R4, R10 and R11 are each C5-C 15 Alkylcycloalkyl.

[0255] In one embodiment of the present specification, R3, R4, R10 and R11 are each C5-C 10 Alkylcycloalkyl.

[0256] In one embodiment of the present specification, R3, R4, R10 and R11 are each a methylcyclohexyl group or a propylcyclohexyl group.

[0257] In one embodiment of the present specification, R100 and R200 are the same as or different from each other, and are each independently an aryl group which is unsubstituted or substituted with one or more substituents selected from an alkyl group, a fluoroalkyl group, a halogen group, a nitrile group, an alkoxy group, and an aryl group; or a heteroaryl group which is unsubstituted or substituted with an alkyl group or =O.

[0258] In one embodiment of the present specification, R100 and R200 are each aryl which is unsubstituted or substituted with one or more substituents selected from methyl, ethyl, propyl, tert-butyl, fluorine, trifluoromethyl, nitrile, methoxy and phenyl; or heteroaryl which is unsubstituted or substituted with methyl or =O.

[0259] In one embodiment of the present specification, R100 and R200 are each unsubstituted or substituted with one or more substituents selected from methyl, ethyl, propyl, tert-butyl, fluorine, trifluoromethyl, nitrile, methoxy and phenyl; dibenzofuranyl; unsubstituted or methyl-substituted pyridyl; or unsubstituted or =O-substituted benzopyranyl.

[0260] In one embodiment of the present specification, examples of the benzopyranyl group substituted with =O may include a coumarinyl group, a chromonyl group, and the like.

[0261] In one embodiment of the present specification, Chemical Formula 1 is represented by the following Chemical Formula 2-1.

[0262] [Chemical formula 2-1]

[0263]

[0264] In chemical formula 2-1,

[0265] R1, R2, R5, R6, R8, R9, R12 and R13 are the same as or different from each other and are each independently hydrogen; a halogen group; an aldehyde group; a nitrile group; a nitro group; a substituted or unsubstituted ester group; a substituted or unsubstituted amide group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted arylthio group; or a substituted or unsubstituted heteroaryl group,

[0266] R9' to R12' are the same as or different from each other, and are each independently a substituted or unsubstituted alkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group,

[0267] L3 to L6, L7 and L8 are the same as or different from each other, and are each independently O or S,

[0268] R300 and R400 are the same as or different from each other and are each independently a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group, and

[0269] X is Zn, Co, Ni or Pd.

[0270] In one embodiment of the present specification, R1, R2, R5, R6, R8, R9, R12 and R13 are the same as or different from each other and are each independently hydrogen; a halogen group; a nitrile group; a nitro group; -CHO; -COOR; -(C=O)NR'R"; a linear or branched alkyl group; a fluoroalkyl group; an unsubstituted or alkyl-substituted cycloalkyl group; an aryl group that is unsubstituted or substituted with one or more substituents selected from a nitrile group, a halogen group, an alkyl group and a fluoroalkyl group; a polycyclic heterocyclic group; an aryloxy group that is unsubstituted or substituted with one or more substituents selected from a halogen group, an alkyl group and a fluoroalkyl group; or an arylthio group that is unsubstituted or substituted with one or more substituents selected from a halogen group and an alkyl group, and R, R' and R" are the same as or different from each other and are each independently substituted or unsubstituted alkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group, and R' and R" may be bonded to each other to form a ring.

[0271] In one embodiment of the present specification, R1, R2, R5, R6, R8, R9, R12 and R13 are the same as or different from each other, and are each hydrogen; a halogen group; a nitrile group; a nitro group; -CHO; -COOR; -(C=O)NR'R"; C1-C 10 Alkyl; C1-C 10 Fluoroalkyl; C3-C 12 Cycloalkyl; C5-C 15 Alkylcycloalkyl; unsubstituted or substituted with nitrile, halogen, C1-C 10 Alkyl or fluoroalkyl substituted aryl; unsubstituted or substituted with one or more substituents selected from alkyl, fluoroalkyl and halogen groups C6-C 10 Aryloxy; unsubstituted or substituted with one or more substituents selected from alkyl and halogen groups C6-C 10 or an O-containing heteroaryl group, and R, R' and R" are each C1-C 10 Alkyl; C2-C 10 Alkoxyalkyl; C5-C 15 Alkylaryl; unsubstituted or NO2-substituted C5-C 15 or an O-containing heteroaryl group which is unsubstituted or substituted with =O, and R' and R" may be bonded to each other to form an O-containing hydrocarbon ring.

[0272] In one embodiment of the present specification, R1, R2, R5, R6, R8, R9, R12 and R13 are the same as or different from each other, and are each hydrogen; fluorine; chlorine; bromine; -CN; -NO2; -CHO; -COOR; -(C=O)NR'R"; C1-C5 alkyl; C1-C5 fluoroalkyl; C3-C8 cycloalkyl; C5-C 10 alkylcycloalkyl; phenyl which is unsubstituted or substituted with one or more substituents selected from -CN, fluorine, C1-C5 alkyl and trifluoroalkyl; phenoxy which is unsubstituted or substituted with one or more substituents selected from C1-C5 alkyl, trifluoroalkyl, fluorine, chlorine and bromine; phenylthio which is unsubstituted or substituted with one or more substituents selected from C1-C5 alkyl, fluorine, chlorine and bromine; or a polycyclic heteroaryl containing O, and R, R' and R" are each C1-C5 alkyl; C2-C5 alkoxyalkyl; C8-C 12 unsubstituted or NO2-substituted benzyl; or unsubstituted or =O-substituted benzopyranyl, and when R' and R" are each a C1-C5 alkyl group and a C2-C5 alkoxyalkyl group, R' and R" may be bonded to each other to form an O-containing hydrocarbon ring.

[0273] In one embodiment of the present specification, R1, R2, R5, R6, R8, R9, R12 and R13 are the same as or different from each other, and are each hydrogen; fluorine; chlorine; bromine; -CN; -NO2; -CHO; -COOR; -(C=O)NR'R", methyl; ethyl; propyl; tert-butyl; -CF3; cyclopropyl; cyclopentyl; cyclohexyl; methylcyclohexyl; propylcyclohexyl; phenyl unsubstituted or substituted with -CN, fluorine, methyl, ethyl, propyl, tert-butyl or -CF3; phenoxy substituted with tert-butyl, -CF3 or fluorine; phenylthio substituted with chlorine; or dibenzofuranyl, and R, R' and R" are each methyl; ethyl; methoxyethyl; tert-butylphenyl; nitrobenzyl; or coumarin, and NR'R" can become morpholinyl by bonding R' and R" to each other to form an O-containing hydrocarbon ring.

[0274] In one embodiment of the present specification, Chemical Formula 2-1 is any one of the following Chemical Formulas 2-1-1 to 2-1-8.

[0275] [Chemical formula 2-1-1]

[0276]

[0277] [Chemical formula 2-1-2]

[0278]

[0279] [Chemical formula 2-1-3]

[0280]

[0281] [Chemical formula 2-1-4]

[0282]

[0283] [Chemical formula 2-1-5]

[0284]

[0285] [Chemical formula 2-1-6]

[0286]

[0287] [Chemical formula 2-1-7]

[0288]

[0289] [Chemical formula 2-1-8]

[0290]

[0291] In Chemical Formulae 2-1-1 to 2-1-8, each substituent has the same definition as in Chemical Formula 2-1.

[0292] In one embodiment of the present specification, R9' to R12' are the same as or different from each other, and are each independently an alkyl group which is unsubstituted or substituted with a halogen group; an aryl group which is unsubstituted or substituted with one or more substituents selected from a nitrile group, a nitro group, a halogen group, an alkyl group, and an alkoxy group; or a substituted or unsubstituted heteroaryl group comprising one or more of N and O.

[0293] In one embodiment of the present specification, R9' to R12' are each unsubstituted or fluorine-substituted alkyl.

[0294] In one embodiment of the present specification, R9' to R12' are each a hexafluoropropane group.

[0295] In one embodiment of the present specification, R9' to R12' are each a perfluoroalkyl group.

[0296] In one embodiment of the present specification, R9' to R12' are each a perfluoroethyl group.

[0297] In one embodiment of the present specification, R9' to R12' are each unsubstituted or selected from a nitrile group, a nitro group, a halogen group, a C1-C 10 Alkyl, C1-C 10 Fluoroalkyl and C1-C 10 Phenyl substituted with one or more substituents in the alkoxy group.

[0298] In one embodiment of the present specification, R9' to R12' are each phenyl which is unsubstituted or substituted with one or more substituents selected from -CN, -NO2, fluorine, chlorine, methyl, tert-butyl, -CF3 and methoxy.

[0299] In one embodiment of the present specification, R9' to R12' are each an unsubstituted or substituted =O-containing heteroaryl group.

[0300] In one embodiment of the present specification, R9' to R12' are each an N-containing monocyclic or polycyclic heteroaryl group; an O-containing monocyclic or polycyclic heteroaryl group which is unsubstituted or substituted with =O.

[0301] In one embodiment of the present specification, R9' to R12' are each an N-containing monocyclic heteroaryl group; an O-containing polycyclic heteroaryl group; or an unsubstituted or substituted ═O benzopyranyl group.

[0302] In one embodiment of the present specification, R9' to R12' are each a pyridyl group, a dibenzofuranyl group, a coumarinyl group or a chromonyl group.

[0303] In one embodiment of the present specification, R300 and R400 are the same as or different from each other, and are each independently an aryl group which is unsubstituted or substituted with one or more substituents selected from a nitrile group, a halogen group, an alkyl group, an alkoxy group, an aryl group, and an alkoxyaryl group; or a substituted or unsubstituted heteroaryl group containing one or more of N and O.

[0304] In one embodiment of the present specification, R300 and R400 are each unsubstituted or selected from a nitrile group, a halogen group, a C1-C 10 Alkyl, C1-C 10 Alkoxy, C6-C 10 Aryl and C7-C 15 Phenyl substituted with one or more substituents in the alkoxyaryl group.

[0305] In one embodiment of the present specification, R300 and R400 are each phenyl which is unsubstituted or substituted with one or more substituents selected from -CN, chlorine, fluorine, methyl, ethyl, propyl, tert-butyl, methoxy, phenyl and methoxyphenyl.

[0306] In one embodiment of the present specification, R300 and R400 are each a naphthyl group.

[0307] In one embodiment of the present specification, R300 and R400 are each an unsubstituted or ═O-substituted N- or O-containing heteroaryl group.

[0308] In one embodiment of the present specification, R300 and R400 are each an N-containing polycyclic heteroaryl group; or an unsubstituted or =O-substituted benzopyranyl group.

[0309] In one embodiment of the present specification, R300 and R400 are each a carbazole group, a coumarin group or a chromone group.

[0310] In one embodiment of the present specification, the compound represented by Chemical Formula 1 may be represented by any one of the following compounds.

[0311]

[0312]

[0313]

[0314]

[0315]

[0316]

[0317]

[0318]

[0319]

[0320]

[0321]

[0322]

[0323]

[0324]

[0325]

[0326]

[0327]

[0328]

[0329]

[0330]

[0331]

[0332]

[0333]

[0334]

[0335]

[0336]

[0337]

[0338]

[0339]

[0340]

[0341]

[0342]

[0343]

[0344]

[0345]

[0346]

[0347] In the compounds, Me means methyl, and Et means ethyl.

[0348] In one embodiment of the present specification, the optical film further includes a binder resin, and the optical film includes 0.001 parts by weight to 5 parts by weight of the dye or pigment relative to 100 parts by weight of the binder resin.

[0349] When a dye or a pigment within the above range is included, absorption at a wavelength of 500 nm can effectively occur without causing a problem of precipitation of the dye or the pigment.

[0350] In one embodiment of the present specification, the binder resin may be a styrene-based resin or elastomer, a urethane-based resin or elastomer, a polyolefin-based resin or elastomer, a polyoxyalkylene-based resin or elastomer, a polyester-based resin or elastomer, a polyvinyl chloride-based resin or elastomer, a polycarbonate-based resin or elastomer, a polyphenylene sulfide-based resin or elastomer, a polyamide-based resin or elastomer, an acrylate-based resin or elastomer, an epoxy-based resin or elastomer, a silicone-based resin or elastomer, or a fluorine-based resin or elastomer, or a mixture thereof.

[0351] In one embodiment of the present specification, an optical film includes a composition for forming an optical film or a cured material thereof.

[0352] In one embodiment of the present specification, the optical film may include the composition for forming the optical film according to one embodiment of the present specification as it is.

[0353] In one embodiment of the present specification, the optical film may include a cured material of the composition for forming the optical film according to one embodiment of the present specification.

[0354] In the present specification, the cured material is obtained by curing after drying the solvent contained in the adhesive composition, and each component contained in the adhesive composition is cross-linked by forming a chemical and / or physical bond.

[0355] In one embodiment of the present specification, a composition for forming an optical film includes the above-mentioned dye or pigment and a binder resin.

[0356] The composition for forming an optical film may further include at least one selected from an antioxidant, an antistatic agent, a hindered amine-based light stabilizer, a UV stabilizer, a crosslinking agent, a coupling agent, a catalyst, and a solvent.

[0357] Preferably, the composition for forming an optical film further comprises an antioxidant, an antistatic agent, and a hindered amine-based light stabilizer.

[0358] In one embodiment of the present specification, examples of the antioxidant may include KINOX 10 (pentaerythritol tetrakis [3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate]), KINOX 76 (octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate), KINOX 30 (1,3,5-trimethyl-2,4,6-tris (3,5-di-tert-butyl-4-hydroxybenzyl) benzene), KINOX 34 (1,3,5-tris (3,5-di-tert-butyl-4-hydroxybenzyl) -1,3,5-triazine-2,4,6- (1H,3H,5H) -trione), KINOX 98 (N,N'-hexamethylene-bis [3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionamide]), KINOX 68 (tris(2,4-di-tert-butylphenyl)phosphite), KINOX 28 (bis(2,4-dicumylphenyl)pentaerythritol diphosphite), or a combination thereof, however, the antioxidant is not limited thereto and those commonly used in the art may be used.

[0359] In one embodiment of the present specification, as an antistatic agent, for example, an ionic compound or a metal salt can be used. As an ionic compound, for example, a known organic salt that can be used as an antistatic agent can be used. As a metal salt, for example, a known alkali metal salt or an alkaline earth metal salt that can be used as an antistatic agent can be used. When an antistatic agent is also included, the adhesive layer has antistatic properties, thereby reducing the generation of static electricity.

[0360] In one embodiment of the present specification, examples of hindered amine-based light stabilizers may include LA 63P (1,2,3,4-butanetetracarboxylic acid-β,β,β',β'-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diethanol copolymer, 1,2,2,6,6-pentamethyl-4-piperidyl ester), IRESORB 770 (sebacic acid, 1,10-bis(2,2,6,6-tetramethyl-4-piperidyl) ester), Tinuvin 292 (sebacic acid, 1,10-bis(1,2,2,6,6-pentamethyl-4-piperidyl) ester), Tinuvin 123 (sebacic acid, bis(2,2,6,6-tetramethyl-1-(octyloxy)-4-piperidyl) ester), or a combination thereof, however, the hindered amine-based light stabilizer is not limited thereto, and those commonly used in the art may be used.

[0361] Examples of UV stabilizers may include LA-F 70 (tris[2-hydroxy-3-methyl-4-hexyloxyphenyl]-1,3,5-triazine), Tinuvin 360 (bis[2-hydroxy-5-tert-octyl-3-(benzotriazol-2-yl)phenyl]methane), Tinuvin 99-2 (phenylpropionic acid, 3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-C7-9-branched and linear alkyl esters), Tinuvin 1130 (a) 50% β-[3-(2-H-benzotriazol-2-yl)-4-hydroxy-5-tert-butylphenyl]-propionic acid-poly(ethylene glycol) 300-ester, b) 38% bis{β-[3-(2-H-benzotriazol-2-yl)-4-hydroxy-5-tert-butylphenyl]-propionic acid}-poly(ethylene glycol) 300-ester, and c) 12% polyethylene glycol), Tinuvin 400 (2-[4-[(2-hydroxy-3-dodecyloxypropyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine & 2-[4-[(2-hydroxy-3-tridecyloxypropyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine), Tinuvin 477, or a combination thereof, however, the UV stabilizer is not limited thereto, and those commonly used in the art may be used.

[0362] The cross-linking agent may be an isocyanate-based cross-linking agent.

[0363] Examples of the isocyanate-based crosslinking agent may include toluene diisocyanate, xylene diisocyanate, 2,4-diphenylmethane diisocyanate, 4,4-diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, tetramethylxylene diisocyanate, naphthalene diisocyanate, triphenylmethane triisocyanate, methylene bistriisocyanate, and the like, but are not limited thereto.

[0364] The coupling agent may be a silane-based coupling agent, but is not limited thereto, and those known in the art may be appropriately used.

[0365] The catalyst may be a tin-based catalyst, but is not limited thereto, and those known in the art may be appropriately used.

[0366] The solvent may be methyl ethyl ketone, but is not limited thereto, and those known in the art may be appropriately used.

[0367] Based on 100 parts by weight of the total weight of the composition for forming an optical film, the composition for forming an optical film may also include 0.01 to 5 parts by weight of an antioxidant, 0.01 to 5 parts by weight of an antistatic agent, 0.001 to 1 parts by weight of a hindered amine-based light stabilizer, 0.001 to 1 parts by weight of a crosslinking agent and a coupling agent, and 0.0001 to 0.1 parts by weight of a catalyst as needed.

[0368] The composition for forming an optical film may further include 10 to 50 parts by weight of a solvent as needed, based on 100 parts by weight of the total weight of the composition for forming an optical film.

[0369] The composition for forming an optical film may include 0.05 parts by weight to 5 parts by weight of the UV stabilizer as needed, based on 100 parts by weight of the total weight of the composition for forming an optical film.

[0370] The composition for forming an optical film may further include 0.001 parts by weight to 5 parts by weight of a dye or a pigment as needed, based on 100 parts by weight of the total weight of the composition for forming an optical film.

[0371] The content of the dye can be adjusted to obtain an optical film with a target transmittance according to the intended use, and when used at less than 0.001 parts by weight, it is difficult to obtain the effect of using the dye. It is preferably not more than a maximum of 5 parts by weight, because of the fact that when the content of the dye is too large, dye precipitation may occur in the adhesive.

[0372] The crosslinking agent and the coupling agent are materials for crosslinking the adhesive, and when the content is less than 0.001 parts by weight, it is difficult to obtain the effect, while a content greater than 1 part by weight may cause direct damage due to reaction with the dye.

[0373] The catalyst is a material that promotes the cross-linking reaction, and when the content is less than 0.0001 parts by weight, it is difficult to obtain the effect, while a content greater than 0.1 parts by weight may reduce the adhesive property.

[0374] The antioxidant is a material that prevents oxidation of the composition, and when the content is less than 0.01 parts by weight, it is difficult to obtain the effect, while a content greater than 5 parts by weight may cause reliability problems of the dye or reduce the adhesive properties of the adhesive.

[0375] The antistatic agent is a material that plays a role in preventing static electricity of the film, and when the content is less than 0.01 parts by weight, it is difficult to obtain the effect, while a content greater than 5 parts by weight may cause reliability problems of the dye or reduce the adhesive properties of the adhesive.

[0376] The hindered amine-based light stabilizer is a material that enhances light resistance reliability, and when the content is less than 0.001 parts by weight, it is difficult to obtain the effect, while a content greater than 1 part by weight may reduce adhesive properties.

[0377] When a film such as an antireflection layer is not used in the optical film according to the present specification, a UV stabilizer may be added to improve UV reliability. When the content is less than 0.05 parts by weight, it is difficult to obtain the effect of the UV stabilizer, and a content greater than 5 parts by weight may reduce the adhesive properties.

[0378] In one embodiment of the present specification, the optical film may be an adhesive film.

[0379] When the optical film is an adhesive film, the adhesive film can be used as an optical adhesive layer. Use as an optical adhesive layer means forming a black adhesive film incorporating an organic dye capable of absorbing visible light, and an OLED panel including the same suppresses high panel reflectivity. In other words, the visible light transmittance of the adhesive film can be controlled within a range of about 30% to 90%, and the transmittance in the visible light region can be appropriately adjusted according to the panel reflectivity and the reflection color.

[0380] In one embodiment of the present application, the thickness of the adhesive film may be greater than or equal to 3 μm and less than or equal to 100 μm, preferably greater than or equal to 5 μm and less than or equal to 80 μm, and more preferably greater than or equal to 10 μm and less than or equal to 50 μm.

[0381] In one embodiment of the present specification, the adhesive film further includes a release layer disposed on one surface thereof.

[0382] Figure 4 The structure of an adhesive film including a release layer 4 provided on one surface of an adhesive film 3 according to one embodiment of the present specification is shown.

[0383] In this specification, the release layer means a transparent layer formed on one surface of the adhesive film by a release process, and as long as it does not have an adverse effect in the manufacturing process of the adhesive film, it can be used without limitation in terms of material, thickness, characteristics, etc. After manufacturing the adhesive film, the release layer provided on one surface of the adhesive film may be removed.

[0384] The release layer may include one or more selected from the following: acetate-based resins, polyester-based resins, polyethersulfone-based resins, polycarbonate-based resins, polyamide-based resins, polyimide-based resins, polyolefin-based resins, cycloolefin-based resins, polyurethane-based resins, acrylic resins, fluorine-based resins and silicone-based resins, but are not limited thereto.

[0385] The thickness of the release layer can be greater than or equal to 10nm and less than or equal to 1,000nm, preferably greater than or equal to 20nm and less than or equal to 800nm, more preferably greater than or equal to 40nm and less than or equal to 100nm, however, thickness is not limited thereto. In this specification, the above-mentioned adhesive composition can be coated on the release layer or substrate using a rod coater to manufacture an adhesive film. The above-mentioned adhesive composition can be coated on the substrate using a rod coater, and then the resultant is dried to manufacture an adhesive film. A description of the substrate will be provided later. The coating and drying method is not particularly limited, and the method used in the art can be appropriately used.

[0386] One embodiment of the present specification provides a bonded optical filter including an optical film.

[0387] The bonded optical filter includes an optical film; a binder resin film; and a surface treatment layer.

[0388] In one embodiment of the present specification, TAC (triacetyl cellulose) may be used as the binder resin film, however, the binder resin film is not limited thereto.

[0389] In one embodiment of the present specification, the thickness of the binder resin film may be greater than or equal to 10 μm and less than or equal to 200 μm, preferably greater than or equal to 15 μm and less than or equal to 100 μm, and more preferably greater than or equal to 20 μm and less than or equal to 75 μm.

[0390] The surface treatment layer can be, for example, an anti-reflection layer or an anti-glare layer. The surface treatment layer can include a low refractive index layer having a refractive index of about 1.4 or less for a wavelength of 550nm. The lower limit of the refractive index of the low refractive index layer can be, for example, about 1.2, and the specific refractive index range can be 1.31 to 1.35. The low refractive index layer can include fluorine-based acrylates and light-curable acrylates containing hollow silica. The surface treatment layer can also include a hard coating on a surface of the low refractive index layer. The hard coating is a layer that protects the substrate surface from being damaged by friction, etc., and includes an organic coating agent (such as melamine, acrylic acid or urethane), an inorganic coating agent (such as silicon), or an organic-inorganic mixed coating agent, and generally has a thickness of 5 μm to 30 μm.

[0391] The material and thickness of the surface treatment layer are not particularly limited, and materials and thicknesses commonly used in the art may be used.

[0392] In the embodiments described later, an optical film to which a surface treatment layer is attached is described, however, the surface treatment layer does not affect the above-mentioned Formula 1 and Formula 2 and each reliability factor.

[0393] Hereinafter, a bonding filter will be described when the optical film is an adhesive film.

[0394] One embodiment of the present specification provides a bonded optical filter including an optical film; and a surface treatment layer.

[0395] The adhesive filter includes an adhesive film; and a surface treatment layer provided on one surface of the adhesive film.

[0396] Furthermore, one embodiment of the present specification provides a bonded optical filter further including a binder resin film between the adhesive film and the surface treatment layer.

[0397] Specifically, Figure 5 The structure of a bonded optical filter according to one embodiment of the present specification is shown. The bonded optical filter 10 includes a bonded resin film 2; an adhesive film 3 provided on one surface of the bonded resin film 2; and a surface treatment layer 1 provided on the surface opposite to the surface where the bonded resin film 2 and the adhesive film 3 contact each other.

[0398] In one embodiment of the present specification, the adhesive film or the binder resin film may each be a single layer or a multilayer. The multilayer means 2 layers or 3 layers.

[0399] When the adhesive film or the adhesive resin film is multi-layered, the adhesive film or the adhesive resin film may be independently the same as or different from each other. The difference may be the type of component contained in each layer or the content thereof.

[0400] The bonded optical filter can be manufactured by sequentially laminating a surface treatment layer provided on one surface of a binder resin film and then laminating an adhesive film on a surface of the binder resin film opposite to the surface in contact with the surface treatment layer.

[0401] Furthermore, the bonded filter can be manufactured by laminating a surface treatment layer provided on one surface of a substrate, separately preparing an adhesive film, and then attaching the adhesive film on a surface opposite to the surface in contact with the surface treatment layer laminated on the substrate.

[0402] The method of laminating the surface treatment layer on one surface of the substrate and the method of laminating the adhesive film on the surface opposite to the surface of the binder resin film in contact with the surface treatment layer are not particularly limited, for example, methods such as coating can be used, and other methods used in the art can be appropriately used.

[0403] One embodiment of the present specification provides a display device including the above-mentioned optical film.

[0404] One embodiment of the present specification provides a display device including the above-mentioned bonding filter.

[0405] In one embodiment of the present specification, the display device further includes a display panel, and the optical film is disposed on the display panel.

[0406] In one embodiment of the present specification, the display panel is a self-luminous display panel or a non-self-luminous display panel.

[0407] Examples of self-luminous display panels may include OLED panels that do not require backlight, etc., and examples of non-self-luminous display panels may include LCD panels that require backlight, etc.

[0408] According to one embodiment of the present application, an OLED panel may be used as a display panel, however, the display panel is not limited thereto.

[0409] In one embodiment of the present specification, the display panel is an OLED panel, and the display device is an OLED device including the OLED panel and an optical film disposed on one surface of the OLED panel.

[0410] In one embodiment of the present specification, the OLED panel further includes white pixels.

[0411] In one embodiment of the present specification, the OLED panel is a white OLED panel.

[0412] In one embodiment of the present specification, the display device may be included in, for example, a TV, a computer monitor, a notebook computer, a mobile phone, or the like.

[0413] Figures 1 to 3 is a graph showing the wavelength-dependent absorption spectrum of the optical film, and the wavelength-dependent absorption spectrum of the optical film can be measured using a UV-visible spectrometer. Figures 1 to 3 In the figure, the horizontal value means the absorption wavelength (nm), and the vertical value means the transmittance (%).

[0414] Figure 1 and Figure 2 : is a graph showing wavelength-dependent absorption spectra of optical films according to the embodiments. Embodiments 1 to 3 are spectra of optical films obtained by changing the amount of compound 1 added to solvent black 28. Embodiments 4 to 6 are spectra of optical films obtained by changing the amount of compound 1 relative to solvent black 28 and pigment blue 15. Embodiments 7 to 9 are spectra of optical films prepared by adding compounds 2 to 4 to solvent black 28.

[0415] Figure 3 : is a graph showing wavelength-dependent absorption spectra of optical films according to comparative examples. Comparative Examples 1 and 2 are spectra of optical films in which a dye absorbing at least some of the wavelengths of 490 nm to 510 nm is not added to Solvent Black 28 or a mixture of Solvent Black 28 and Pigment Blue 15. Comparative Examples 3 and 4 are spectra of optical films in which Compound 1 is added to Solvent Black 28 or a mixture of Solvent Black 28 and Pigment Blue 15, however, the transmission color specified in claim 1 is not satisfied.

[0416] Figure 6 The structure of an OLED device 30 (an example of a display device according to an embodiment of the present specification) is shown. The OLED device 30 of the present specification may include an OLED panel 20 and an adhesive filter 10 disposed on one surface of the OLED panel 20 and having an adhesive film 3, an adhesive resin film 2, and a surface treatment layer 1 sequentially formed therein. Specifically, in the OLED device 30, one surface where the OLED panel 20 and the filter 10 are in contact with each other is the opposite surface of the surface where the adhesive film 3 and the adhesive resin film 2 are in contact with each other.

[0417] In an OLED device, the description provided above applies to the optical film.

[0418] In the present specification, the OLED panel may include a substrate, a lower electrode, an organic material layer and an upper electrode in sequence. The organic material layer may include an organic material that can emit light when a voltage is applied to the lower electrode and the upper electrode. Either of the lower electrode and the upper electrode may be an anode, and the other may be a cathode. The anode is an electrode that injects holes and may be made of a conductive material with a high work function. The cathode is an electrode that injects electrons and may be made of a conductive material with a low work function. As an anode, a transparent metal oxide layer with a high work function, such as ITO (indium tin oxide) or IZO (indium zinc oxide) can usually be used, and as a cathode, a metal electrode with a low work function can be used. The organic material layer is generally transparent, and when the upper electrode and the lower electrode are made transparent, a transparent display can be obtained. In one example, when a very thin thickness of the upper electrode or the lower electrode is used, a transparent display can be obtained.

[0419] Figure 7 The structure of an OLED panel according to one embodiment of the present specification is shown, and it can be determined that the OLED panel sequentially includes a substrate 11; a lower electrode 12; an organic material layer 13; and an upper electrode 14. The OLED panel may further include an encapsulation substrate 15 on the upper electrode for preventing moisture and / or oxygen from flowing in from the outside.

[0420] The organic material layer may include a light emitting layer and may also include a common layer for charge injection and transport. Specifically, the common layer for charge injection and transport may include a hole transport layer for balancing electrons and holes, a hole injection layer, an electron injection layer, and an electron transport layer, but is not limited thereto.

[0421] The optical film can be disposed on the light-emitting side of the OLED panel. For example, in a bottom emission structure where light is emitted toward the substrate side, the bonding filter can be disposed on the outer side of the substrate, and in a top emission structure where light is emitted toward the package substrate side, the bonding filter can be disposed on the outer side of the package substrate.

[0422] Specifically, Figure 8 (a) shows an OLED device when the OLED panel 20 has a bottom emission structure, in which light is emitted from the organic material layer 13 toward the substrate 11 side, the bonding filter 10 can be arranged on the opposite surface of the surface where the substrate 11 and the lower electrode 12 are in contact with each other, and the opposite surface of the surface of the adhesive film 3 included in the bonding filter 10 that is in contact with the adhesive resin film 2 is arranged to be in contact with the substrate 11 of the OLED panel 20.

[0423] Figure 8(b) shows an OLED device when the OLED panel 20 has a top emission structure, in which light is emitted from the organic material layer 13 toward the side of the encapsulation substrate 15, the bonding filter 10 can be arranged on the opposite surface of the surface where the encapsulation substrate 15 and the upper electrode 14 are in contact with each other, and the opposite surface of the surface of the adhesive film 3 included in the bonding filter 10 that is in contact with the adhesive resin film 2 is arranged to be in contact with the encapsulation substrate 15 of the OLED panel 20.

[0424] Although not shown in the drawings, the OLED panel may have a dual emission structure, and when the OLED panel has the dual emission structure, the optical film may be disposed on both outermost surfaces of the OLED panel or on one outermost surface of the OLED panel.

[0425] The optical film can improve visibility and display performance by minimizing external light reflected by a reflective layer made of metal (such as electrodes and wires of an OLED panel) and coming out from the outside of the OLED panel. The outside of the OLED panel means the outside of the encapsulation substrate in top emission and means the outside of the substrate in bottom emission.

[0426] In one example, the OLED panel may further include a substrate formed with a color filter as needed. The color filter means a layer formed by coating red, green, and blue color resists in a specific pattern, and when light passes through, colors are displayed through each color filter.

[0427] Fig. 9 (a) shows the structure of an OLED panel having a bottom emission structure provided with a substrate 16 formed with a color filter, and the substrate 16 formed with a color filter may be provided on the opposite surface of the surface where the lower electrode 12 and the organic material layer 13 are in contact with each other. Here, the OLED panel may have a structure including an encapsulation substrate 15, a transparent metal oxide electrode (anode) as an upper electrode 14, an organic material layer 13, a metal electrode (cathode) as a lower electrode 12, and a substrate 16 formed with a color filter in sequence. Fig. 9 (b) shows a structure of an OLED panel having a top emission structure provided with a substrate 16 having a color filter formed thereon, and the substrate 16 having a color filter formed thereon may be provided on a surface opposite to a surface where the upper electrode 14 and the organic material layer 13 are in contact with each other. Here, the OLED panel may have a structure sequentially including a substrate 16 having a color filter formed thereon, an upper electrode 14, an organic material layer 13, a lower electrode 12, and a substrate 11.

[0428] As shown, the color filter may include a red region, a green region, and a blue region, and although not shown separately in the figure, may also include a black matrix for separating the regions. When a color filter is present in the OLED panel, a lower panel reflectivity can be obtained than when the color filter is not present. Specifically, when red, green, and blue color filters are present in front of the light-emitting layer of the OLED, the high reflectivity in the metal electrode located on the back surface of the light-emitting layer is reduced. Panel reflection means electrode reflection, and specifically means that external light penetrating into the OLED panel is reflected by the electrodes included in the OLED panel.

[0429] The OLED panel may be used without particular limitation as long as it is used in the art, but may have an average reflectivity of about 30% to 50% in the wavelength range of 400nm to 600nm, and may also be an OLED panel having an average reflectivity of 25% or less. The average reflectivity may be expressed as the sum of regular reflected light obtained by light from a light source entering a reflective surface and reflecting at the same angle, and diffuse reflected light which is light scattered and reflected in various directions due to irregularities or bends on the surface instead of regular reflection, and is expressed by averaging the reflectivity values ​​of 400nm to 600nm among the measured reflectivity values ​​for each wavelength.

[0430] Fig.10 (a) shows a structure of a white OLED panel having a bottom emission structure provided with a substrate 17 in which a color filter including white pixels is formed, and the substrate 17 in which the color filter including white pixels is formed may be provided on a surface opposite to a surface in which the lower electrode 12 and the organic material layer 13 are in contact with each other. Here, the OLED panel may have a structure sequentially including an encapsulation substrate 15, a transparent metal oxide electrode (anode) as an upper electrode 14, an organic material layer 13, a metal electrode (cathode) as a lower electrode 12, and a substrate 17 in which a color filter including white pixels is formed.

[0431] Fig.10 (b) shows a structure of an OLED panel having a top emission structure provided with a substrate 17 in which a color filter including white pixels is formed, and the substrate 17 in which the color filter including white pixels is formed may be provided on a surface opposite to a surface in which the upper electrode 14 and the organic material layer 13 are in contact with each other. Here, the OLED panel may have a structure sequentially including the substrate 17 in which a color filter including white pixels is formed, the upper electrode 14, the organic material layer 13, the lower electrode 12, and the substrate 11.

[0432] Embodiments of the invention

[0433] Hereinafter, this specification will be described in detail with reference to embodiments. However, the embodiments according to this specification can be modified into various other forms, and the scope of this specification should not be interpreted as being limited to the embodiments described below. The embodiments of this specification are provided to more fully describe this specification to those of ordinary skill in the art.

[0434] Examples and Comparative Examples

[0435] As a binder resin, AD-701 (LG Chem.) (solid content 15.5%) was used, and a certain amount of dye or pigment was dissolved in methyl ethyl ketone (MEK) so that the amount of the dye or pigment became 0.2 to 1.5 parts by weight relative to 100 parts by weight of the solid content of the binder resin, and as a result, a composition for forming an optical film was prepared. The specific type and amount of the dye or pigment are described in Table 1 below.

[0436] The binder resin AD-701 (LG Chem.) and the dye according to the following Table 1 were mixed and mixed in a shaker (SKC6100, JEIO Tech.) for about 40 minutes. The mixed composition for forming an optical film was coated on a release layer (PET) to a thickness of about 22 μm to 23 μm using a doctor bar coating device (KP-3000, Kipae E&T), and dried in an oven at about 100° C. for 3 minutes to prepare an optical film.

[0437] A surface treatment layer (LG Chem., AAR4) having a minimum reflection wavelength of 500 nm or less was attached to the surface of the optical film opposite to the surface in contact with the release layer (PET).

[0438] When evaluating reliability, after removing the release layer (PET), the optical film with the surface treatment layer attached was attached to a 4 cm 2 ×4cm 2 of glass, and when evaluating the viewing angle, it was attached to an OLED panel (OLED55E9KNA, LG Electronics).

[0439] [Table 1]

[0440]

[0441]

[0442] In Table 1, Solvent Black 28 is a metal-containing azo-based compound (BASF Corporation), Pigment Blue 15 is a phthalocyanine-based compound (BASF Corporation), FDB-007 is manufactured by Yamada Chem., SD-021SP is manufactured by Mitsui Chem., and Compounds 1 to 4 are each prepared using the preparation method described below.

[0443] <Preparation Example Compound 1>

[0444]

[0445] Synthesis of compound 1_1

[0446] Benzaldehyde (20.0 g) was introduced into the pyrrole solvent and stirred thoroughly. Trifluoroacetic acid (0.10 equivalent) was slowly introduced thereinto. After confirming the completion of the reaction, the obtained product was extracted with dichloromethane and sodium bicarbonate aqueous solution. The extracted organic layer was dried with sodium sulfate, and then a silica gel column was used to obtain purified and isolated compound 1_1 (15.5 g, yield 37.0%).

[0447] Synthesis of Compound 1_2

[0448] Compound 1_1 (15.5 g) was fully stirred and dissolved in tetrahydrofuran solvent. The reaction solution was cooled to -78 ° C using dry ice and acetone, and N-bromosuccinimide (NBS) (2.0 equivalents) was slowly introduced thereto in a solid state while maintaining the temperature. Upon completion of the reaction, ice water was used to cool the reaction solution to 0 ° C, and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) (1.1 equivalents) was then introduced thereto. Upon completion of the reaction, triethylamine (1.5 equivalents) was introduced thereto, and the resulting product was extracted using diethyl ether and water. The extracted organic layer was dried over sodium sulfate, and a silica gel column was then used to obtain purified and isolated compound 1_2 (10.2 g, 38.7% yield).

[0449] Synthesis of Compound 1_3

[0450] Compound 1_2 (3.0 g) was fully stirred and dissolved in methanol / chloroform (1 / 1) solvent. Cobalt acetate tetrahydrate (0.5 equivalent) was introduced into the reaction solution in a solid state. After the reaction was completed, the obtained product was extracted with dichloromethane and water. The extracted organic layer was dried using sodium sulfate, and after removing the solvent by vacuum distillation, methanol was used for recrystallization. By recrystallization, purified and separated compound 1_3 (2.7 g, yield 83.7%) was obtained.

[0451] Synthesis of compound 1

[0452] Compound 1_3 (2.7 g) was fully stirred and dissolved in N, N-dimethylformamide solvent. Sodium carbonate (20.0 equivalents) and 4-cyanophenol (10.0 equivalents) were introduced therein, and the reaction solution was heated to 80°C and stirred. After the reaction was completed, the resultant was extracted with chloroform and water. The extracted organic layer was dried with sodium sulfate, and after the solvent was removed by vacuum distillation, it was recrystallized using methanol. By recrystallization, purified and isolated compound 1 (2.4 g, yield 74.8%) was obtained. For C 58 H 34 HR LC / MS / MS m / z(M+) calculated for CoN8O4: 965.2035; Found: 965.2041

[0453] <Preparation Example Compound 2>

[0454]

[0455] Synthesis of compound 2_1

[0456] Mesitylene trimethylbenzaldehyde (20.0 g) was introduced into 2,4-dimethylpyrrole solvent and stirred thoroughly. Trifluoroacetic acid (0.10 equivalent) was slowly introduced therein. After confirming the completion of the reaction, the obtained product was extracted with dichloromethane and sodium bicarbonate aqueous solution. The extracted organic layer was dried with sodium sulfate, and then a silica gel column was used to obtain purified and isolated compound 2_1 (16.8 g, yield 38.8%).

[0457] Synthesis of compound 2_2

[0458] Compound 2_1 (16.8 g) was fully stirred and dissolved in a chloroform solvent. The reaction solution was cooled to 0 ° C using ice water, and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) (1.1 equivalents) was introduced therein. The resultant was fully stirred at room temperature, and when the reaction was complete, triethylamine (1.5 equivalents) was introduced therein, and the resultant was extracted with diethyl ether and water. After the extracted organic layer was dried with sodium sulfate, the reaction solution remaining in the container obtained by vacuum distilling the filtrate was fully stirred again in a chloroform solvent. The reaction solution was cooled to 0 ° C using ice water, and triethylamine (20.0 equivalents) and boron trifluoride ether complex (BF3.OEt2) (10.0 equivalents) were then slowly introduced therein. The reaction solution was stirred at room temperature, and when the reaction was completed, the resultant was extracted with chloroform and sodium bicarbonate aqueous solution. The extracted organic layer was dried over sodium sulfate and then subjected to a silica gel column to obtain the purified and isolated compound 2_2 (15.5 g, yield 80.7%).

[0459] Synthesis of Compound 2_3

[0460] Compound 2_2 (3.0 g) was fully stirred and dissolved in a dichloromethane solvent. After the reaction solution was cooled to 0 ° C using ice water, chlorosulfonyl isocyanate (10.0 equivalents) was introduced thereto, and the resulting product was stirred at room temperature. When the reaction was completed, N, N-dimethylformamide (20.0 equivalents) was introduced thereto, and the resulting product was fully stirred again for a sufficient time. The resulting product was extracted with chloroform and water, and the organic layer was dried using sodium sulfate. The solvent was removed by vacuum distillation, and the resulting product was recrystallized using methanol. By recrystallization, purified and separated compound 2_3 (2.7 g, yield 79.2%) was obtained.

[0461] Synthesis of Compound 2_4

[0462] Compound 2_3 (2.7 g) was fully stirred and dissolved in a dichloromethane solvent. Boron trichloride 1.0 M heptane solution (1.0 equivalent) was slowly added dropwise thereto. When the reaction was complete, the solvent was vacuum distilled at a low temperature of 30 ° C or lower, and then acetone and water were introduced into the residual reaction solution in the container in a ratio of 10 / 1, and the resulting mixture was fully stirred again. When the reaction was complete, the resulting mixture was extracted with dichloromethane and water, and the extracted organic layer was dried using sodium sulfate. The solvent was removed by vacuum distillation, and the resulting mixture was recrystallized using methanol. By recrystallization, purified and separated compound 2_4 (2.2 g, yield 83.8%) was obtained.

[0463] Synthesis of compound 2

[0464] Compound 2_4 (2.2 g) was fully stirred and dissolved in a dichloromethane solvent. Cobalt acetate tetrahydrate (0.50 equivalent) was introduced into the reaction solution in a solid state, and triethylamine (2.5 equivalent) was further introduced thereto. After the reaction was completed, the obtained product was extracted with dichloromethane and water. The extracted organic layer was dried over sodium sulfate, and after the solvent was removed by vacuum distillation, it was recrystallized using methanol. By recrystallization, purified and isolated compound 2 (1.9 g, yield 88.1%) was obtained. For C 48 H 46 HR LC / MS / MS m / z (M+) calculated for CoN8: 793.3177; Found: 793.3183

[0465] <Preparation Example Compound 3>

[0466]

[0467] Synthesis of compound 3_1

[0468] 2,4-dimethylpyrrole-3-carboxylic acid (10.0g) was fully stirred and dissolved in N,N-dimethylformamide solvent. Sodium carbonate (3.0 equivalents) and 2-methoxyethoxymethyl chloride (2.0 equivalents) were introduced therein, and the reaction solution was heated to 80 ° C and stirred. After the reaction was completed, the obtained product was extracted with chloroform and water. The extracted organic layer was dried with sodium sulfate, and after the solvent was removed by vacuum distillation, it was recrystallized using methanol. By recrystallization, purified and separated compound 3_1 (7.8g, yield 47.8%) was obtained.

[0469] Synthesis of Compound 3_2

[0470] Mesitylene trimethylbenzaldehyde (1.5 g) was introduced into a chloroform solvent and stirred thoroughly. Compound 3_1 (2.0 equivalents) was introduced thereinto, and trifluoroacetic acid (0.20 equivalents) was then slowly introduced thereinto. The reaction solution was stirred under reflux, and the reaction was determined to be complete. The reaction solution was extracted with chloroform and sodium bicarbonate aqueous solution. The extracted organic layer was dried with sodium sulfate, and then a silica gel column was used to obtain purified and isolated compound 3_2 (2.9 g, 49.0% yield).

[0471] Synthesis of compound 3_3

[0472] Compound 3_2 (2.9 g) was fully stirred and dissolved in a chloroform solvent. The reaction solution was cooled to 0 ° C using ice water, and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) (1.1 equivalents) was introduced therein. The resultant was fully stirred at room temperature, and when the reaction was complete, triethylamine (1.5 equivalents) was introduced therein, and the resultant was extracted using diethyl ether and water. The extracted organic layer was dried over sodium sulfate, and then a silica gel column was used to obtain purified and isolated compound 3_3 (2.2 g, yield 76.1%).

[0473] Synthesis of compound 3

[0474] Compound 3_3 (2.2 g) was fully stirred and dissolved in a methanol / chloroform (1 / 1) solvent. Cobalt acetate tetrahydrate (0.50 equivalent) was introduced into the reaction solution in a solid state. After the reaction was completed, the resultant was extracted with dichloromethane and water. The extracted organic layer was dried over sodium sulfate, and after the solvent was removed by vacuum distillation, it was recrystallized using methanol. By recrystallization, purified and isolated compound 3 (2.0 g, yield 86.7%) was obtained. For C 64 H 82 CoN4O 16 Calculated HR LC / MS / MS m / z(M+): 1221.5058; Found: 1221.5063

[0475] <Preparation Example Compound 4>

[0476]

[0477] Synthesis of compound 4_1

[0478] 2,4-dimethylpyrrole-3-carboxylic acid (10.0g) is introduced into a chloroform solvent, fully stirred and dissolved therein. 4-nitrophenol (2.0 equivalents), 4-dimethylaminopyridine (DMAP) (2.2 equivalents) and N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride (EDC-HCl) (2.2 equivalents) are introduced therein, and the resultant is stirred under reflux. After the reaction is completed, the reaction solution is cooled to room temperature and extracted with chloroform and water. The extracted organic layer is dried with sodium sulfate, and after removing the solvent by vacuum distillation, ethanol is used for recrystallization. By recrystallization, purified and separated compound 4_1 (10.9g, yield 58.3%) is obtained.

[0479] Synthesis of compound 4_2

[0480] Mesitylene trimethylbenzaldehyde (2.0 g) was introduced into a chloroform solvent and stirred thoroughly. Compound 4_1 (2.0 equivalents) was introduced thereinto, and trifluoroacetic acid (0.20 equivalents) was then slowly introduced thereinto. The reaction solution was stirred under reflux, and the completion of the reaction was confirmed. The reaction solution was extracted with chloroform and sodium bicarbonate aqueous solution. The extracted organic layer was dried with sodium sulfate, and then a silica gel column was used to obtain purified and isolated compound 4_2 (3.7 g, 42.1% yield).

[0481] Synthesis of compound 4_3

[0482] Compound 4_2 (3.0 g) was fully stirred and dissolved in a chloroform solvent. The reaction solution was cooled to 0 ° C using ice water, and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) (1.1 equivalents) was introduced therein. The resultant was fully stirred at room temperature, and when the reaction was complete, triethylamine (1.5 equivalents) was introduced therein, and the resultant was extracted using diethyl ether and water. The extracted organic layer was dried over sodium sulfate, and then a silica gel column was used to obtain purified and isolated compound 4_3 (2.5 g, yield 83.6%).

[0483] Synthesis of compound 4

[0484] Compound 4_3 (2.5 g) was fully stirred and dissolved in a methanol / chloroform (1 / 1) solvent. Cobalt acetate tetrahydrate (0.50 equivalent) was introduced into the reaction solution in a solid state. After the reaction was completed, the resultant was extracted with dichloromethane and water. The extracted organic layer was dried over sodium sulfate, and after the solvent was removed by vacuum distillation, it was recrystallized using methanol. By recrystallization, the purified and isolated compound 4 (2.2 g, yield 84.3%) was obtained. For C 72 H 62 CoN8O 16 Calculated HR LC / MS / MS m / z(M+): 1353.3616; Found: 1353.3624

[0485] [Evaluation of transmission characteristics and reliability]

[0486] In Table 1, Comparative Examples 1 and 2 do not use a dye that absorbs at least some of the wavelengths of 490 nm to 510 nm, and in Comparative Examples 3 and 4, the transmission color does not satisfy the conditions according to the present specification. Comparative Example 5 does not use a dye at all. Specific results of evaluating the transmission characteristics and reliability of the embodiments and comparative examples are described in Table 2 below. Based on CIE 1976 color coordinates, the transmission color was measured using a UV3600 device from Shimadzu Corporation, and a* and b* values ​​were calculated from the spectrum measured using the device.

[0487] Reliability was evaluated as heat resistance reliability, moist heat resistance reliability, and light resistance reliability each under the conditions described below, and when all of the following reliability were satisfied, it was evaluated as o, and when any of them was not satisfied, it was evaluated as X. The results are described in Table 2 below.

[0488] - Heat-resistant reliability: the change in the transmittance Y value expressed as a percentage of a D65 light source in the CIE XYZ color space after 500 hours at a wavelength of 380 nm to 780 nm and 80° C. is 3% p or less.

[0489] The change in the transmittance Y value expressed as a percentage in terms of heat resistance reliability means subtracting the Y value (%) measured immediately after the optical film is prepared after storage at a wavelength of 380 nm to 780 nm and 80°C for 500 hours from the transmittance Y value (%) of the optical film measured immediately after the optical film is prepared.

[0490] - Moisture and heat resistance reliability: after 500 hours at a wavelength of 380 nm to 780 nm, 60° C. and a relative humidity of 90%, the change in the transmittance Y value expressed as a percentage of a D65 light source in the CIE XYZ color space is 3%p or less.

[0491] The change in the transmittance Y value expressed as a percentage in terms of moisture and heat resistance reliability means subtracting the Y value (%) measured after storage for 500 hours at a wavelength of 380 nm to 780 nm, 60°C and a relative humidity of 90% from the transmittance Y value (%) of the optical film measured immediately after the optical film is prepared.

[0492] - Lightfastness reliability: The change in the transmittance Y value expressed as a percentage of the D65 light source in the CIEXYZ color space at a wavelength of 380nm to 780nm and 22,500,000 lux*hours is 3%p or less.

[0493] The change in the transmittance Y value expressed as a percentage in terms of light resistance reliability means subtracting the Y value (%) measured after storage for 48 hours at a wavelength of 380 nm to 780 nm, 50° C. or less and about 470,000 lux from the transmittance Y value (%) of the optical film measured immediately after the optical film is prepared.

[0494] [Table 2]

[0495]

[0496]

[0497] [Evaluation of viewing angle characteristics when attached to an OLED panel]

[0498] The viewing angle characteristics of the OLED panel attached with the surface treatment layer and the optical film prepared above were evaluated, and the results are described in Table 3 below.

[0499] In Table 3 below, DCI reproducibility was evaluated by attaching the optical film prepared according to each embodiment or comparative example to an OLED panel, measuring color coordinates during RGB monochrome output using an ELABO-605L device from SP Tech. Co., Ltd., and then calculating the area of ​​the portion overlapping with the DCI coordinates.

[0500] ΔDuv in the following Table 3 represents the difference between the Duv value at a viewing angle of 0 degrees and the Duv value at a viewing angle of 40 degrees during 10,000K white output, and is calculated after measuring the color using the ELABO-605L device of SP Tech. Co., Ltd. In addition, Δu'v' is a value representing the difference between the color coordinates at a viewing angle of 0 degrees and the color coordinates at a viewing angle of 40 degrees, and is calculated by the following Formula 3 after measuring the color using the ELABO-605L device of SP Tech. Co., Ltd.

[0501] [Formula 3]

[0502]

[0503] [Table 3]

[0504]

[0505] According to Table 3, it is determined that in Examples 1 to 3 and Examples 7 to 9, the color changes under viewing angles of white, green, yellow, and cyan are smaller than in Comparative Example 1 which uses the same amount of Solvent Black 28 but does not use a dye or pigment that absorbs at least some of the wavelengths of 490 nm to 510 nm.

[0506] In addition, it was determined that in Examples 4 to 6, color changes at viewing angles of white, green, yellow, and cyan were smaller than in Comparative Example 2 using the same amounts of Solvent Black 28 and Pigment Blue 15 but not using a dye or pigment absorbing at least some of the wavelengths of 490 nm to 510 nm.

[0507] Comparative Examples 3 and 4 used a dye absorbing a wavelength of 500 nm and had an increased dye content compared to Examples 1 to 9, and although the color change under viewing angle was reduced, the transmission color became a>8.

[0508] Comparative Example 5 uses no light absorbing dye or pigment at all.

Claims

1. An optical film, (1) comprising a dye or pigment that absorbs at least some of the wavelengths from 490 nm to 510 nm; (2) having a transmitted color under a CIE standard light source D65 light source of -8 < a* < 8 and -8 < b* < 8; and (3) satisfying the following Formula 1 and Formula 2: [Formula 1] T%(500 nm) < T%(530 nm), [Formula 2] [T%(500 nm) × 1.8] < [T%(460 nm) + T%(610 nm)] in, In Formula 1 and Formula 2, T%(Anm) means the transmittance at the wavelength of Anm, wherein the heat resistance reliability, the damp heat resistance reliability, and the light resistance reliability are each ΔY ≤ 3%p, the heat resistance reliability represents the change in the transmitted Y value as a percentage under a D65 light source in the CIE XYZ color space after 500 hours at a wavelength of 380 nm to 780 nm and 80°C; the damp heat resistance reliability represents the change in the transmitted Y value as a percentage under a D65 light source in the CIE XYZ color space after 500 hours at a wavelength of 380 nm to 780 nm, 60°C, and 90% relative humidity; and the light resistance reliability represents the change in the transmitted Y value as a percentage under a D65 light source in the CIE XYZ color space under the conditions of a wavelength of 380 nm to 780 nm and 22,500,000 lux * hours, wherein the optical film further comprises a binder resin, and the optical film comprises 0.2 parts by weight to 1.5 parts by weight of the dye or pigment relative to 100 parts by weight of the solid content of the binder resin, wherein the dye or pigment consists of a compound represented by the following Chemical Formula 1 and Solvent Black 28, or the dye or pigment consists of a compound represented by the following Chemical Formula 1, Solvent Black 28, and Pigment Blue 15: [Chemical Formula 1] In Chemical Formula 1, X is Co; R1, R6, R8, and R13 are the same as or different from each other, and are each independently hydrogen or methyl; R7 and R14 are the same as or different from each other, and are each independently phenyl which is unsubstituted or substituted with methyl; R2, R5, R9, and R12 are hydrogen, and R3, R4, R10, and R11 are phenoxy groups substituted with nitrile groups; or R2, R5, R9, and R12 are nitrile groups or -(C=O)OR''', where R''' is methyl substituted with ethoxy substituted with methoxy or phenyl substituted with nitro, and R3, R4, R10, and R11 are the same as or different from each other, and are each independently hydrogen or methyl.

2. The optical film according to claim 1, wherein the transmitted color under a CIE standard light source D65 light source is -8 < a* < 8 and -7 < b* < 8.

3. The optical film according to claim 1, wherein the optical film is an adhesive film.

4. The optical film according to claim 1, wherein the binder resin is a styrene-based resin or elastomer, a urethane-based resin or elastomer, a polyolefin-based resin or elastomer, a polyoxyalkylene-based resin or elastomer, a polyester-based resin or elastomer, a polyvinyl chloride-based resin or elastomer, a polycarbonate-based resin or elastomer, a polyphenylene sulfide-based resin or elastomer, a polyamide-based resin or elastomer, an acrylate-based resin or elastomer, an epoxy-based resin or elastomer, a silicone-based resin or elastomer, or a fluorine-based resin or elastomer, or a mixture thereof.

5. A bonded optical filter comprising: The optical film according to any one of claims 1 to 4; and Surface treatment layer. 6 . A display device comprising the optical film according to claim 1 . 7 . The display device according to claim 6 , comprising a display panel, and the optical film is provided on the display panel. The display device according to claim 7 , wherein the display panel is a self-luminous display panel or a non-self-luminous display panel.

9. The display device according to claim 7, wherein the display panel is an OLED panel; and The display device is an OLED device including an OLED panel and the optical film disposed on one surface of the OLED panel.

10. The display device according to claim 9, wherein the OLED panel further comprises white pixels.

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