WO2020071695A1 - 표시 장치 및 표시 장치에 포함된 광 흡수제 - Google Patents
표시 장치 및 표시 장치에 포함된 광 흡수제Info
- Publication number
- WO2020071695A1 WO2020071695A1 PCT/KR2019/012652 KR2019012652W WO2020071695A1 WO 2020071695 A1 WO2020071695 A1 WO 2020071695A1 KR 2019012652 W KR2019012652 W KR 2019012652W WO 2020071695 A1 WO2020071695 A1 WO 2020071695A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- substituted
- formula
- unsubstituted
- carbon atoms
- Prior art date
Links
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- 229940124543 ultraviolet light absorber Drugs 0.000 description 1
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- BNEMLSQAJOPTGK-UHFFFAOYSA-N zinc;dioxido(oxo)tin Chemical compound [Zn+2].[O-][Sn]([O-])=O BNEMLSQAJOPTGK-UHFFFAOYSA-N 0.000 description 1
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- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6574—Polycyclic condensed heteroaromatic hydrocarbons comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/19—Tandem OLEDs
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/873—Encapsulations
- H10K59/8731—Encapsulations multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
Definitions
- the present invention relates to a display device and a light absorbing agent used in the display device, and more particularly, to a light absorbing agent included in the sealing member and a display device including the same.
- the organic electroluminescent display device is different from the liquid crystal display device and the like, and recombines holes and electrons injected from the first electrode and the second electrode in the light emitting layer, thereby emitting a light emitting material containing an organic compound in the light emitting layer to realize display. It is a so-called self-luminous display device.
- a self-emission type light emitting element In applying a self-emission type light emitting element to a display device, low driving voltage, high light emission efficiency, and long life of the light emitting element are required, and it is necessary to secure the stability of the light emitting element so that it can be stably implemented.
- the light emitting device has a vulnerability that is easily deteriorated by exposure to ultraviolet light during manufacturing or exposure to sunlight due to outdoor use, thereby preventing ultraviolet rays and some visible light from entering the inside of the light emitting device.
- An object of the present invention is to provide a display device that improves reliability of a light emitting device by including a light absorbing agent in a sealing member.
- Another object of the present invention is to provide a light absorber that efficiently absorbs a portion of visible light and ultraviolet light.
- An exemplary embodiment includes a light emitting device including a first electrode, a second electrode facing the first electrode, and a plurality of organic layers disposed between the first electrode and the second electrode; And a sealing member disposed on the light emitting element and including a light absorber.
- the light absorbing agent includes a hexagonal heterocycle including two or more nitrogen atoms as a ring forming atom, and first to third substituents substituted with the hexagonal heterocycle and different from each other, wherein the first substituent is at least It provides a display device which is a substituted phenyl group including one hydroxy group, and the second substituent is a condensed ring group in which three or more rings are condensed.
- the sealing member may include at least one organic film and at least one inorganic film, and the at least one organic film may include the light absorbing agent.
- the at least one organic film and the at least one inorganic film are alternately stacked and disposed, and the at least one organic film includes a first organic film that absorbs light in a first wavelength region; And a second organic film that absorbs light in a second wavelength region different from light in the first wavelength region. It may include.
- the sealing member may cover the light emitting element.
- a polarizing member disposed on the encapsulating member may be further included.
- the sealing member may include a first inorganic film disposed adjacent to the second electrode; A second inorganic film disposed on the first inorganic film; And an organic layer disposed between the first inorganic layer and the second inorganic layer and including the light absorber. Including, the organic layer may have a transmittance of 10% or less at a wavelength of 405 nm, a transmittance of 70% or more at a wavelength of 430 nm, and a transmittance of 97% or more at a wavelength of 450 nm.
- the plurality of organic layers may include a hole transport region disposed on the first electrode; A light emitting layer disposed on the hole transport region; And an electron transport region disposed on the light emitting layer. It may include.
- a light blocking layer disposed on the sealing member may be further included.
- the hexagonal heterocycle may be triazine or pyrimidine.
- the first substituent may be represented by any of the following H1 to H5, R in the following H4 and H5 is a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms.
- the second substituent is a substituted or unsubstituted anthracene group, a substituted or unsubstituted pyrene group, a substituted or unsubstituted chrysene group, a substituted or unsubstituted dibenzofuran derivative, a substituted or unsubstituted carbazole derivative, or a substitution Or an unsubstituted fluorene derivative, the substituent of the substituted or unsubstituted dibenzofuran derivative, the substituent of the substituted or unsubstituted carbazole derivative, and the substituent of the substituted or unsubstituted fluorene derivative are a hydrogen atom, Alkyl group having 1 to 20 carbon atoms, alkenyl group having 1 to 20 carbon atoms, substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms. Or, adjacent groups
- the third substituent is a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms, or a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms.
- the light absorbing agent may be represented by the following Chemical Formula 1 or Chemical Formula 2.
- Ar is a substituted or unsubstituted aryl group having 13 to 60 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 12 to 60 ring carbon atoms
- R 2 to R 5 Each independently represents a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted ring Formed aryloxy group having 6 to 30 carbon atoms, substituted or unsubstituted alkyl amine group having 1 to 30 carbon atoms, forming a substituted or unsubstituted aryl amine group having 6 to 30 carbon atoms, forming a substituted or unsubstituted ring It is a heterocyclic group having 2 to 30 carbon
- R 1 is a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted carbon group having 1 to 20 carbon atoms, An alkoxy group, a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl having 6 to 30 carbon atoms It is a thio group, a substituted or unsubstituted heterocyclic group having 2 to 30 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 30 carbon atoms.
- X is O or S
- R 6 is a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted heterocyclic group having 2 to 30 carbon atoms, or substituted or unsubstituted It is an aryl group having 6 to 30 carbon atoms.
- the Chemical Formula 1 may be represented by any one of the following Chemical Formulas 1-1 to 1-4.
- Ar, Y 1 to Y 3, R 1 , and R 4 are the same as defined in Formula 1.
- the Chemical Formula 2 may be represented by any one of the following Chemical Formulas 2-1 to 2-4.
- X, Ar, R 4 , and R 6 are the same as defined in Formulas 1 and 2.
- the Ar may be represented by any one of the following Ar-a to Ar-h.
- Z is O, S, NR a , CR b R c , and R a to R c are each independently a hydrogen atom, a deuterium atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, A substituted or unsubstituted aryl group having 6 to 30 carbon atoms or less, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms or less, wherein R 11 to R 18 in Ar-a to Ar-h are Each independently, a hydrogen atom, a deuterium atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted ring having 2 to 30 carbon atoms Is a heteroaryl group, and m1 to m8 are each independently an integer of
- Formula 1 may be represented by any one of the following Formula 1-A to Formula 1-C.
- Y 1 to Y 3 , Ar, and R 1 to R 5 are the same as defined in Formula 1.
- An exemplary embodiment includes a light emitting device including a first electrode, a second electrode facing the first electrode, and a plurality of organic layers disposed between the first electrode and the second electrode; And an encapsulation member disposed on the light emitting element and including an organic film including a light absorber.
- the organic film has a transmittance of 10% or less at a wavelength of 405 nm, a transmittance of 70% or more at a wavelength of 430 nm, a transmittance of 97% or more at a wavelength of 450 nm or more, and the light absorber has two or more N atoms It provides a display device including a hexagonal heterocyclic ring containing a ring-forming atom and the first to third substituents substituted with the hexagonal heterocycle and different from each other.
- the hexagonal heterocycle may be triazine or pyrimidine.
- the first substituent is a substituted phenyl group including at least one hydroxy group
- the second substituent is a condensed cyclic group in which three or more rings are condensed
- the third substituent is a substituted or unsubstituted oxy group, substituted or unsubstituted Thio group, or a substituted or unsubstituted phenyl group.
- the first substituent may be represented by any one of the following H1 to H5.
- R is a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms.
- the second substituent may be represented by any one of the following Ar-a to Ar-h.
- Z is O, S, NR a , CR b R c , and R a to R c are each independently a hydrogen atom, a deuterium atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, A substituted or unsubstituted aryl group having 6 to 30 carbon atoms or less, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms or less, wherein R 11 to R 18 in Ar-a to Ar-h are Each independently, a hydrogen atom, a deuterium atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted ring having 2 to 30 carbon atoms Is a heteroaryl group, and m1 to m8 are each independently an integer of
- the third substituent may be represented by any one of the following S1 to S15.
- Another embodiment provides a light absorbing agent represented by the following Chemical Formula 1 or Chemical Formula 2.
- Ar is a substituted or unsubstituted aryl group having 13 to 60 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 12 to 60 ring carbon atoms
- R 2 to R 5 Each independently represents a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted ring Formed aryloxy group having 6 to 30 carbon atoms, substituted or unsubstituted alkyl amine group having 1 to 30 carbon atoms, forming a substituted or unsubstituted aryl amine group having 6 to 30 carbon atoms, forming a substituted or unsubstituted ring It is a heterocyclic group having 2 to 30 carbon
- R 1 is a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted carbon group having 1 to 20 carbon atoms, An alkoxy group, a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl having 6 to 30 carbon atoms It is a thio group, a substituted or unsubstituted heterocyclic group having 2 to 30 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 30 carbon atoms.
- X is O or S
- R 6 is a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted heterocyclic group having 2 to 30 carbon atoms, or substituted or unsubstituted It is an aryl group having 6 to 30 carbon atoms.
- the display device of one embodiment may have improved reliability by absorbing external light from the sealing member.
- the light absorber of one embodiment may be applied to an encapsulation member on a light emitting device to mainly absorb light in the ultraviolet wavelength range to prevent deterioration of the light emitting device and improve reliability.
- FIG. 1 is a perspective view of a display device according to an exemplary embodiment.
- FIG. 2A is a cross-sectional view corresponding to the line I-I 'in FIG. 1.
- 2B is a cross-sectional view of a display device according to an exemplary embodiment.
- FIG 3 is a cross-sectional view of a display panel according to an exemplary embodiment.
- FIG. 4 is a plan view of a display panel according to an exemplary embodiment.
- FIG. 5 is a cross-sectional view corresponding to line II-II 'of FIG. 4.
- FIG. 6 is a cross-sectional view of a light emitting device according to an embodiment.
- FIG. 7 to 9 are cross-sectional views of a display device according to an exemplary embodiment.
- FIG. 10 is a cross-sectional view of a light emitting device according to an exemplary embodiment.
- FIG. 11 is a cross-sectional view of a sealing member according to an embodiment.
- FIGS. 12 and 13 are cross-sectional views of a sealing member according to an embodiment, respectively.
- 15 is a graph showing transmittance in a display device according to an embodiment.
- 16 is an image showing whether damage is caused by ultraviolet exposure time in Examples and Comparative Examples.
- first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from other components.
- first component may be referred to as a second component without departing from the scope of the present invention, and similarly, the second component may be referred to as a first component.
- Singular expressions include plural expressions unless the context clearly indicates otherwise.
- FIGS. 2A and 2B are cross-sectional views of a display device of one embodiment, respectively.
- 2A is a cross-sectional view showing a portion corresponding to the line I-I 'of FIG. 1.
- 3 is a cross-sectional view illustrating a display panel included in a display device according to an exemplary embodiment.
- 4 is a plan view of a display panel included in a display device according to an exemplary embodiment, and
- FIG. 5 is a cross-sectional view illustrating a portion corresponding to line II-II 'of FIG. 4.
- 6 is a cross-sectional view of a light emitting device according to an embodiment.
- 7 to 9 are cross-sectional views of a display device according to an embodiment.
- 10 is a cross-sectional view of a light emitting device according to an embodiment.
- the display device DS may display an image IM through the display surface IS.
- the display surface IS is shown to be parallel to a surface defined by the first direction axis DR1 and the second direction axis DR2 intersecting the first direction axis DR1.
- a display surface (not shown) of the display device may have a curved shape.
- the normal direction of the display surface IS that is, the thickness direction of the display device DS is indicated by the third direction axis DR3.
- the front (or top) and back (or bottom) of each member is divided by the third direction axis DR3.
- the directions indicated by the first to third direction axes DR1, DR2, and DR3 are relative concepts and may be converted to other directions.
- a portable electronic device is exemplarily illustrated as a display device DS.
- display devices DS include small and medium electronics such as personal computers, notebook computers, personal digital terminals, car navigation units, game machines, smartphones, tablets, and cameras, as well as large electronic devices such as televisions, monitors, or external billboards. It can also be used for devices and the like. In addition, these are presented as examples only, and may be employed in other electronic devices without departing from the concept of the present invention.
- the display surface IS includes a display area DA on which the image IM is displayed and a non-display area NDA adjacent to the display area DA.
- the non-display area NDA is an area in which an image is not displayed.
- an example of an image IM shows a watch window and application icons.
- the display area DA may have a quadrangular shape.
- the non-display area NDA may surround the display area DA.
- the present invention is not limited thereto, and the shape of the display area DA and the shape of the non-display area NDA may be relatively designed. Also, the non-display area NDA may not exist on the front surface of the display device DS.
- the display panels DP, DP-1, DP-2 included in the display devices DS, DS-a, DS-1, DS-1a, DS-2 of the embodiment shown in FIGS. 1 to 9 emit light. It may be a type display panel.
- the display panels DP, DP-1, and DP-2 may be organic electroluminescence display panels or quantum dot emission display panels. However, embodiments are not limited thereto.
- the display panel DP may include a sealing member TFE disposed on the light emitting elements OEL, OEL-1, and OEL-2.
- the display devices DS, DS-a and the display panel DP shown in FIGS. 1 to 5 are mainly described, but embodiments are not limited thereto, and the same or similar
- the description of the components having the reference numerals can be applied to the description of the display devices DS-1, DS-1a, and DS-2 shown in FIGS. 7 to 9.
- the sealing member TFE may include a light absorbing agent.
- the encapsulation member TFE may absorb a portion of light incident from the outside of the display devices DS and DS-a by including a light absorbing agent.
- the encapsulation member TFE including the light absorber absorbs external light to block at least a portion of external light transmitted to the light emitting device OEL.
- the sealing member (TFE) includes hexagonal heterocycles containing two or more nitrogen atoms as ring forming atoms, and first to third substituents substituted for the hexagonal heterocycles It may be to include a light absorber of one embodiment.
- the light absorber of one embodiment may be substituted by a hexagonal heterocycle and a hexagonal heterocycle containing two or more nitrogen atoms as ring-forming atoms, and may include first to third substituents different from each other.
- the first substituent may be a substituted phenyl group including at least one hydroxyl group
- the second substituent may be a condensed ring group in which three or more rings are condensed.
- the third substituent may be different from the first substituent and the second substituent.
- the third substituent may be an alkyl group, an oxy group, a thio group, an aryl group, a heterocyclic group, or the like.
- the third substituent is a substituted or unsubstituted oxy group, a substituted or unsubstituted thio group, or a substituted or unsubstituted phenyl group directly substituted on a hexagonal heterocycle, or a substituted or unsubstituted phenyl group directly substituted on the core portion of the hexagonal heterocycle.
- the hexagonal heterocycle may be triazine or pyrimidine.
- the first substituent may be a phenyl group substituted with one or more and three or fewer hydroxy groups.
- the first substituent may be one of the following H1 to H5.
- R in H4 and H5 may be a substituted or unsubstituted alkoxy group.
- R in H4 and H5 may be a methoxy group, an undecyloxy group, a dodecyloxy group, a cyclopentoxy group, an ethylpentyloxy group, but is not limited thereto.
- the second substituent is a substituted or unsubstituted anthracene group, a substituted or unsubstituted pyrene group, a substituted or unsubstituted chrysene group, a substituted or unsubstituted dibenzofuran derivative, a substituted or unsubstituted carbazole derivative, or a substituted or It may be an unsubstituted fluorene derivative.
- the substituent of the substituted or unsubstituted dibenzofuran derivative, the substituent of the substituted or unsubstituted carbazole derivative, and the substituent of the substituted or unsubstituted fluorene derivative are a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, An alkenyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms, or neighboring groups It may be combined to form a ring.
- the second substituent may be one of Ar-a to Ar-h.
- Z is O, S, NR a , CR b R c , and R a to R c are each independently a hydrogen atom, a deuterium atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, It may be a substituted or unsubstituted aryl group having 6 to 30 carbon atoms or less, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms or less.
- R 11 to R 18 in Ar-a to Ar-h are each independently a hydrogen atom, a deuterium atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted ring-forming group having 6 to 30 carbon atoms.
- An aryl group, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms or less, and m1 to m8 may each independently be an integer of 0 or more and 4 or less.
- a plurality of R 11 to R 18 may be the same or different from each other.
- the third substituent is a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted ring-forming carbon atom 6 or more, 30 or less aryloxy group, substituted or unsubstituted C1 to 20 alkylthio group, substituted or unsubstituted ring-forming carbon number 6 to 30 arylthio group, substituted or unsubstituted ring-forming carbon number 2 to 30 It may be the following heterocyclic group, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.
- the third substituent is a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms, or a substituted or unsubstituted carbon atom having 1 to 20 carbon atoms. It may be an alkylthio group, a substituted or unsubstituted arylthio group having 6 to 30 carbon atoms, or a substituted or unsubstituted phenyl group.
- the third substituent may be one of S1 to S15.
- substituted or unsubstituted in the present specification, deuterium atom, halogen atom, cyano group, nitro group, amino group, silyl group, oxy group, thio group, sulfinyl group, sulfonyl group, carbonyl group, boron group, phosphine It may mean substituted or unsubstituted with one or more substituents selected from the group consisting of an oxide group, a phosphine sulfide group, an alkyl group, an alkenyl group, an alkoxy group, a hydrocarbon ring group, an aryl group, and a heterocyclic group.
- each of the exemplified substituents may be substituted or unsubstituted.
- a biphenyl group may be interpreted as an aryl group or a phenyl group substituted with a phenyl group.
- Hydrocarbon rings include aliphatic hydrocarbon rings and aromatic hydrocarbon rings.
- Hetero rings include aliphatic hetero rings and aromatic hetero rings.
- the hydrocarbon ring and hetero ring may be monocyclic or polycyclic.
- the rings formed by bonding to each other may be connected to other rings to form a spiro structure.
- adjacent group may mean a substituent substituted on an atom directly connected to an atom in which the substituent is substituted, another substituent substituted on an atom in which the substituent is substituted, or a substituent that is structurally closest to the substituent.
- two methyl groups in 1,2-dimethylbenzene (1,2-dimethylbenzene) can be interpreted as “adjacent groups” to each other, and 2 in 1,1-diethylcyclopentene (1,1-diethylcyclopentene).
- Dog ethyl groups can be interpreted as "adjacent groups" to each other.
- examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom or an iodine atom.
- the alkyl group may be straight chain, branched chain, or cyclic.
- the alkyl group has 1 to 50 carbon atoms, 1 to 30 carbon atoms, 1 to 20 carbon atoms, 1 to 10 carbon atoms, or 1 to 6 carbon atoms.
- alkyl group examples include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, s-butyl group, t-butyl group, i-butyl group, 2-ethylbutyl group, 3, 3-dimethylbutyl group , n-pentyl group, i-pentyl group, neopentyl group, t-pentyl group, cyclopentyl group, 1-methylpentyl group, 3-methylpentyl group, 2-ethylpentyl group, 4-methyl-2-pentyl group , n-hexyl group, 1-methylhexyl group, 2-ethylhexyl group, 2-butylhexyl group, cyclohexyl group, 4-methylcyclohexyl group, 4-t-butylcyclohexyl group, n-heptyl group, 1 -Methyl
- an aliphatic hydrocarbon ring group means any functional group or substituent derived from an aliphatic hydrocarbon ring.
- the aliphatic hydrocarbon ring group may be a saturated hydrocarbon ring group having 5 to 20 ring carbon atoms.
- an aryl group means any functional group or substituent derived from an aromatic hydrocarbon ring.
- the aryl group may be a monocyclic aryl group or a polycyclic aryl group.
- the ring-forming carbon number of the aryl group may be 6 or more and 30 or less, 6 or more and 20 or less, or 6 or more and 15 or less.
- aryl group examples include a phenyl group, a naphthyl group, a fluorenyl group, anthracenyl group, a phenanthryl group, a biphenyl group, a terphenyl group, a quarterphenyl group, a quenkyphenyl group, a sexyphenyl group, a triphenylenyl group, a pyrenyl group, and a benzo fluoranthenyl group , A chrysenyl group, and the like, but are not limited to these.
- the fluorenyl group may be substituted, and two substituents may combine with each other to form a spiro structure.
- Examples when the fluorenyl group is substituted are as follows. However, it is not limited thereto.
- a heterocyclic group means any functional group or substituent derived from a ring including one or more of B, O, N, P, Si and S as a hetero atom.
- Heterocyclic groups include aliphatic heterocyclic groups and aromatic heterocyclic groups.
- the aromatic heterocyclic group may be a heteroaryl group.
- the aliphatic hetero ring and aromatic hetero ring can be monocyclic or polycyclic.
- the aliphatic heterocyclic group may be one containing one or more of B, O, N, P, Si and S as a hetero atom.
- the two or more hetero atoms may be the same as or different from each other.
- the aliphatic heterocyclic group may have 2 to 30 carbon atoms, 2 to 20 carbon atoms, or 2 to 10 carbon atoms.
- Examples of the aliphatic heterocyclic group include an oxirane group, a thirane group, a pyrrolidine group, a piperidine group, a tetrahydrofuran group, a tetrahydrothiophene group, a thian group, a tetrahydropyran group, a 1,4-dioxane group, etc. There are, but are not limited to these.
- the heteroaryl group may include one or more of B, O, N, P, Si, and S as a hetero atom.
- the heteroaryl group may be a monocyclic heterocyclic group or a polycyclic heterocyclic group.
- the number of ring-forming carbon atoms of the heteroaryl group may be 2 or more and 30 or less, 2 or more and 20 or less, or 2 or more and 10 or less.
- heteroaryl group examples include thiophene group, furan group, pyrrol group, imidazole group, triazole group, pyridine group, bipyridine group, pyrimidine group, triazine group, triazole group, acridil group, pyridazine group, pyrazinyl Group, quinoline group, quinazoline group, quinoxaline group, phenoxazine group, phthalazine group, pyrido pyrimidine group, pyrido pyrazine group, pyrazino pyrazine group, isoquinoline group, indole group, carbazole group, N-arylcarba Sol group, N-heteroaryl carbazole group, N-alkyl carbazole group, benzoxazole group, benzoimidazole group, benzothiazole group, benzocarbazole group, benzothiophene group, dibenzothiophene group, thienothioph
- the number of carbon atoms of the amino group is not particularly limited, but may be 1 or more and 30 or less.
- the amino group can include an alkyl amino group, an aryl amino group, or a heteroaryl amino group.
- Examples of the amino group include, but are not limited to, methylamino group, dimethylamino group, phenylamino group, diphenylamino group, naphthylamino group, 9-methyl-anthracenylamino group, triphenylamino group, and the like.
- the thio group may include an alkyl thio group and an aryl thio group.
- the oxy group may include an alkoxy group and an aryl oxy group.
- the alkoxy group may be straight chain, branched chain or cyclic chain.
- the number of carbon atoms of the alkoxy group is not particularly limited, but may be, for example, 1 or more and 20 or less, or 1 or more and 10 or less.
- Examples of oxy groups include, but are not limited to, methoxy, ethoxy, n-propoxy, isopropoxy, butoxy, pentyloxy, hexyloxy, octyloxy, nonyloxy, decyloxy, benzyloxy, etc. It is not.
- the alkenyl group may be straight chain or branched chain.
- the number of carbon atoms is not particularly limited, but is 2 or more and 30 or less, 2 or more and 20 or less, or 2 or more and 10 or less.
- Examples of the alkenyl group include, but are not limited to, vinyl groups, 1-butenyl groups, 1-pentenyl groups, 1,3-butadienyl aryl groups, styrenyl groups, styryl vinyl groups, and the like.
- the number of carbon atoms of the amine group is not particularly limited, but may be 1 or more and 30 or less.
- the amine group may include an alkyl amine group and an aryl amine group. Examples of amine groups include, but are not limited to, methylamine groups, dimethylamine groups, phenylamine groups, diphenylamine groups, naphthylamine groups, 9-methyl-anthracenylamine groups, triphenylamine groups, and the like.
- the alkyl group of the alkylthio group, the alkyl sulfoxy group, the alkylaryl group, the alkylamino group, the alkyl boron group, the alkyl silyl group, and the alkyl amine group is the same as the above-described alkyl group.
- the aryl group in the aryloxy group, the arylthio group, the aryl sulfoxy group, the arylamino group, the aryl boron group, the aryl silyl group, and the aryl amine group are the same as the examples of the aryl group described above.
- the first substituent includes at least one hydroxyl group (-OH), and may be a part that absorbs light and converts it into thermal energy. Further, the second substituent may be a portion that adjusts a wavelength region of light absorbed by the light absorber. The third substituent may be a part that controls the solubility of the light absorber of one embodiment.
- the light absorber of one embodiment may absorb light in the ultraviolet wavelength range.
- the light absorber of one embodiment may mainly absorb light in a wavelength region of 405 nm or less.
- the light absorber of an embodiment may mainly absorb light in a wavelength region of 380 nm or more and 405 nm or less.
- the light absorber of one embodiment may be represented by the following Chemical Formula 1 or Chemical Formula 2.
- two of Y 1 to Y 3 may be N and the other may be CH.
- Formula 1 shows the case where the core portion is pyrimidine in the light absorber of one embodiment
- Formula 2 shows the case where the core portion is triazine in the light absorber of one embodiment.
- Ar may be a substituted or unsubstituted aryl group having 13 to 60 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 12 to 60 ring carbon atoms.
- R 2 to R 5 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted carbon number 1 Alkyl group of 20 or more, substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms, or substituted or unsubstituted alkyl amine group of 1 to 30 carbon atoms, substituted or unsubstituted ring group of 6 to 30 carbon atoms
- the following may be an aryl amine group, a substituted or unsubstituted heterocyclic group having 2 to 30 carbon atoms
- R 1 is a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted ring-forming group having 6 to 30 carbon atoms.
- R 1 in Formula 1 may be a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, or an unsubstituted phenyl group.
- the light absorber represented by Formula 1 includes three different substituents, and each of the three substituents is , , Can be In addition, each of the light absorbers represented by the formula (2), , , And It may be to include three different substituents.
- Ar in Formula 1 and Formula 2 may be represented by any one of the following Ar-a to Ar-h.
- R 11 to R 18 are each independently a hydrogen atom, a deuterium atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl having 6 to 30 carbon atoms.
- Group or a substituted or unsubstituted heteroaryl group having 2 to 30 ring carbon atoms, and m1 to m8 are each independently an integer of 0 or more and 4 or less.
- Ar-a to Ar-h may each be unsubstituted.
- Ar may be unsubstituted anthracene, unsubstituted phenanthrene, unsubstituted pyrene, or unsubstituted chrysene.
- Formula 1 may be represented by any one of Formula 1-1 to Formula 1-4.
- Chemical Formula 2 may be represented by any one of Chemical Formulas 2-1 to 2-4.
- Formulas 1-1 and 2-1 are those in which the phenyl group substituted in the hexagonal heterocycle which is the core portion contains one hydroxy group, and Formulas 1-2 and 2-2, and 1-3 and 2-3
- the phenyl group substituted in the hexagonal heterocycle contains two hydroxy groups
- the formulas 1-4 and 2-4 represent the phenyl group substituted in the hexagonal heterocycle containing three hydroxy groups.
- Chemical Formulas 1-2 and Chemical Formula 2-2 show the case where both hydroxy groups are substituted at the ortho-position of the hexagonal heterocycle and ortho, which are the core parts
- Chemical Formulas 1-3 and Chemical Formula 2-3 are two.
- One of the hydroxy groups is substituted for the hexagonal heterocycle and the ortho position, and the other hydroxyl group is substituted for the hexagonal heterocycle and the para position.
- Ar, Y 1 to Y 3, R 1 , and R 4 may have the same contents as those described in Formula 1 above.
- the same contents as those described in Formulas 1 and 2 above may be applied to X, Ar, R 4 , and R 6 in Formulas 2-1 to 2-4.
- two of the one selected from Y 1 to Y 3 in the light absorber of an embodiment represented by Formula 1 may be a nitrogen atom (N). That is, in Formula 1, two selected from Y 1 to Y 3 may be nitrogen atoms (N) and the other may be CH.
- N nitrogen atom
- Y 1- and Y 2 are nitrogen atoms
- Y 3 is CH
- Y 1- and Y 3 are nitrogen atoms
- Y 2 is CH
- Y 2- and Y 3 are nitrogen atoms and Y 2 is CH.
- the light absorber of one embodiment represented by Chemical Formula 1 may be represented by any one of the following Chemical Formulas 1-A to 1-C.
- Formula 1-A to Formula 1-C shows a light absorber of an embodiment in which the core portion is pyrimidine.
- Formula 1-A to Formula 1-C show a case in which the positions of nitrogen atoms in the core portion of pyrimidine are different.
- Formula 1-A is a case where Y 1- and Y 3 in Formula 1 are nitrogen atoms
- Formula 1 -B represents a case where Y 1- and Y 2 in Formula 1 are nitrogen atoms
- Formula 1-C represents a case where Y 2- and Y 3 in Formula 1 are nitrogen atoms.
- Y 1 to Y 3 , Ar, and R 1 to R 5 may have the same contents as described in Formula 1 above.
- the light absorber of an embodiment may be represented by any one of the compounds shown in Compound 1 below.
- the light absorber represented by Formula 1 may be represented by any one of the compounds represented by the following compound group 1.
- the light absorber of one embodiment may be represented by any one of the compounds shown in Compound 2 below.
- the light absorber represented by Chemical Formula 2 may be represented by any one of the compounds represented by the following compound group 2.
- the display devices DS and DS-a of one embodiment may include at least one of the compounds of Compound Group 1 or Compound Group 2 described above as a light absorber.
- the sealing member (TFE) may include at least one of compounds of Compound Group 1 or Compound Group 2 as a light absorber.
- the light absorber of the above-described embodiment may be included in the display device and absorb some of the light incident on the display device.
- the light absorber of one embodiment may absorb light in the ultraviolet wavelength range.
- the light absorber of an embodiment may absorb some of external light of the display device.
- the light absorber of one embodiment may mainly absorb light in the 405 nm wavelength region.
- the light absorber of an embodiment may mainly absorb light in a wavelength region of 380 nm or more and 410 nm or less.
- the display devices DS and DS-a of one embodiment may include the light absorber of the above-described embodiment.
- the display panel DP of the display devices DS and DS-a of one embodiment may include a sealing member TFE, and the sealing member TFE may include the light absorbing agent of the above-described embodiment.
- the display devices DS and DS-a of one embodiment may include the light absorbing agent of the above-described embodiment in the encapsulation member TFE to prevent external light from entering the light emitting device OEL.
- the display devices DS-1, DS-1a, and DS-2 may include the light absorbing agent of the above-described exemplary embodiment.
- the display panels DP-1 and DP-2 of the display devices DS-1, DS-1a, and DS-2 in one embodiment include a sealing member TFE, and the sealing member TFE is one of the above-described embodiments. It may be to include an example light absorber.
- the display devices DS-1, DS-1a, and DS-2 of one embodiment include the light absorbing agent of the above-described embodiment in the encapsulation member TFE, so that external light is transmitted to the light emitting elements OEL-1 and OEL-2. It can be prevented from entering.
- the display device DS includes a display panel DP, an input sensing unit TP disposed on the display panel DP, and a polarizing member disposed on the display panel DP ( PP).
- the polarization member PP may be disposed on the input sensing unit TP.
- the display panel DP may be an organic electroluminescent display panel.
- the display panel DP may include a base layer BL, a circuit layer CL provided on the base layer BL, and a display element layer DD.
- the base layer BL may be a member that provides a base surface on which the display element layer DD is disposed.
- the base layer BL may be a glass substrate, a metal substrate, or a plastic substrate.
- the embodiment is not limited thereto, and the base layer BL may be an inorganic layer, an organic layer, or a composite material layer.
- the circuit layer CL is disposed on the base layer BL, and the circuit layer CL may include a plurality of transistors (not shown). Transistors (not shown) may each include a control electrode, an input electrode, and an output electrode.
- the circuit layer CL may include a switching transistor and a driving transistor for driving the light emitting device OEL.
- the polarization member PP may block external light provided to the display panel DP from the outside.
- the polarization member PP may block some of the external light, for example, the polarization member PP may block light having a wavelength of 380 nm or less.
- the polarization member PP may reduce reflected light generated in the display panel DP by external light.
- the polarization member PP may function to block reflected light when light provided from the outside of the display device DS is incident on the display panel DP and is emitted again.
- the polarization member PP may be a circular polarizer having an antireflection function, or the polarization member PP may include a linear polarizer and a ⁇ / 4 phase retarder.
- the input detection unit TP may recognize a user's direct touch, a user's indirect touch, a direct touch of an object, or an indirect touch of an object. Meanwhile, the input sensing unit TP may sense at least one of a location of a touch applied from the outside and a strength (pressure) of the touch.
- the input sensing unit TP in one embodiment of the present invention may have various structures or be composed of various materials, and is not limited to any one embodiment.
- the input sensing unit TP may be a touch sensing unit that senses a touch.
- the display device DS may further include a window member WP.
- the window member WP may define the front surface of the display device DS.
- the window member WP may stably protect internal components of the display device DS from external impact.
- the window member WP may be formed of a glass substrate or a plastic substrate.
- the display device DS is illustrated as including the input sensing unit TP, the polarization member PP, and the window member WP, but the embodiment is not limited thereto. .
- At least one of the input sensing unit TP, the polarizing member PP, and the window member WP may be omitted in the display device DS of an embodiment.
- the input sensing unit TP or the window member WP may be omitted in the display device DS of one embodiment.
- the polarization member PP or the window member WP may be omitted in the display device DS of one embodiment.
- the display device DS of the embodiment illustrated in FIG. 2A may further include an adhesive member (not shown) for joining each member.
- the adhesive member (not shown) may be an optically transparent adhesive layer (OCA or OCR).
- OCA optically transparent adhesive layer
- the adhesive member (not shown) may be disposed between the input sensing unit TP and the polarization member PP, or between the polarization member PP and the window member WP.
- At least one member provided on the display panel DP may include a light blocking material.
- at least one of the input sensing unit TP, the polarizing member PP, the window member WP, and the adhesive member (not shown) may include an ultraviolet light absorber as a light blocking material.
- at least one of the input sensing unit (TP), the polarizing member (PP), the window member (WP), and the adhesive member (not shown) is a light blocking material, the light absorbing agent of the above-described embodiment or a known ultraviolet light absorbing agent It may be included.
- the display device DS-a includes a display panel DP and a light blocking layer LBL provided on the display panel DP You can.
- the light blocking layer LBL blocks light provided from the outside of the display panel DP, and for example, may block ultraviolet light.
- the light blocking layer (LBL) may be provided in a film form.
- the light blocking layer LBL may be provided on the display panel DP in the form of a film formed of a polymer.
- the display panel DP may be an organic electroluminescent display panel.
- the display panel DP may include a base layer BL, a circuit layer CL, and a display element layer DD.
- FIG. 3 is a display panel DP of one embodiment
- the display panel DP may include a base layer BL, a circuit layer CL, and a display element layer DD sequentially stacked in the third direction axis DR3.
- the display element layer DD may include a light emitting element OEL and an encapsulation member TFE.
- the light emitting device (OEL) may be an organic electroluminescent device.
- the encapsulation member TFE may be disposed on the light emitting element OEL.
- the encapsulation member TFE may cover the light emitting device OEL.
- the light emitting element OEL may be sealed by the sealing member TFE.
- FIG. 4 is an enlarged plan view of a portion of the display panel DP included in the display device DS according to an exemplary embodiment.
- 5 is a cross-sectional view of the display panel DP according to an exemplary embodiment.
- FIG. 5 is a cross-sectional view illustrating a portion corresponding to line II-II 'of FIG. 4.
- the display panel DP may include a non-emission region NPXA and emission regions PXA-R, PXA-G, and PXA-B.
- Each of the light emitting regions PXA-R, PXA-G, and PXA-B may be a region in which light generated by the light emitting element OEL is emitted.
- the area of each of the emission regions PXA-R, PXA-G, and PXA-B may be different from each other, and in this case, the area may mean an area when viewed on a plane.
- the light emitting regions PXA-R, PXA-G, and PXA-B may be divided into a plurality of groups according to the color of light generated by the light emitting element OEL.
- three emission regions PXA-R, PXA-G, and PXA-B emitting red, green, and blue light are exemplarily illustrated.
- the light emitting regions PXA-R, PXA-G, and PXA-B may have different areas according to colors emitted from the light emitting layer EML of the light emitting element OEL.
- the blue light emitting area PXA-B of the light emitting device emitting blue light has the largest area
- the green light emitting of the light emitting device generating green light The area PXA-G may have the smallest area.
- the embodiment is not limited thereto, and the emission areas PXA-R, PXA-G, and PXA-B emit light of a color other than red light, green light, or blue light, or light emission areas PXA -R, PXA-G, PXA-B) may have the same area, or light emitting areas PXA-R, PXA-G, and PXA-B may be provided in a different area ratio than that shown in FIG. 4. .
- Each of the emission areas PXA-R, PXA-G, and PXA-B may be an area divided by a pixel defining layer PDL.
- the non-emission regions NPXA are regions between neighboring emission regions PXA-R, PXA-G, and PXA-B, and may be regions corresponding to the pixel defining layer PDL.
- each of the light emitting regions PXA-R, PXA-G, and PXA-B may correspond to a pixel.
- the pixel defining layer PDL may be formed of a polymer resin.
- the pixel defined layer PDL may be formed of a polyacrylate-based resin or a polyimide-based resin.
- the pixel defining layer PDL may be formed by further containing an inorganic material in addition to the polymer resin.
- the pixel defining layer PDL may be formed of a light absorbing material or a black pigment or black dye.
- the pixel definition layer (PDL) formed by including a black pigment or a black dye may implement a black pixel definition layer.
- carbon black or the like may be used as a black pigment or black dye, but embodiments are not limited thereto.
- the pixel defining layer PDL may be formed of an inorganic material.
- the pixel defining layer PDL may be formed of silicon nitride (SiNx), silicon oxide (SiOx), silicon nitride (SiOxNy), or the like.
- the pixel defining layer PDL may be to define light emitting regions PXA-R, PXA-G, and PXA-B.
- the emission regions PXA-R, PXA-G, and PXA-B and the non-emission region NPXA may be divided by the pixel defining layer PDL.
- the blue emission areas PXA-B and the red emission areas PXA-R may be alternately arranged along the first direction axis DR1 to form a first group PXG1.
- the green emission regions PXA-G may be arranged along the first direction axis DR1 to form the second group PXG2.
- the first group PXG1 may be arranged to be spaced apart from the second direction axis DR2 with respect to the second group PXG2.
- Each of the first group PXG1 and the second group PXG2 may be provided in plural.
- the first groups PXG1 and the second groups PXG2 may be alternately arranged along the second direction axis DR2.
- One green light emitting area PXA-G may be arranged to be spaced apart from one blue light emitting area PXA-B or one red light emitting area PXA-R in the direction of the fourth direction axis DR4.
- the fourth direction axis DR4 direction may be a direction between the first direction axis DR1 direction and the second direction axis DR2 direction.
- the arrangement structure of the light emitting regions PXA-R, PXA-G, and PXA-B illustrated in FIG. 4 may be referred to as a pentile structure.
- the arrangement structure of the light emitting regions PXA-R, PXA-G, and PXA-B in the display panel DP according to an embodiment is not limited to the arrangement structure illustrated in FIG. 4.
- the emission areas PXA-R, PXA-G, and PXA-B are along the first direction axis DR1, and the red emission area PXA-R and the green emission area PXA- G), and the blue light-emitting region (PXA-B) may have a stripe structure arranged alternately in sequence.
- the light emitting device OEL includes a plurality of organic layers disposed between the first electrode EL1 and the second electrode EL2, and the first electrode EL1 and the second electrode EL2 facing each other ( OL).
- the organic layers OL may include a hole transport region HTR, an emission layer EML, and an electron transport region ETR.
- the light emitting device OEL is formed on the first electrode EL1, the hole transport region HTR disposed on the first electrode EL1, the light emitting layer EML disposed on the hole transport region HTR, and the light emitting layer EML.
- the electron transport region ETR may be disposed, and the second electrode EL2 may be disposed on the electron transport region ETR.
- the encapsulation member TFE may be disposed on the light emitting element OEL, and the encapsulation member TFE may be disposed on the second electrode EL2.
- the encapsulation member TFE may be directly disposed on the second electrode EL2.
- the encapsulation member TFE may be one layer or a plurality of layers stacked.
- the encapsulation member TFE may be a thin film encapsulation layer.
- the sealing member TFE protects the light emitting element OEL.
- the encapsulation member TFE may cover the upper surface of the second electrode EL2 disposed in the opening OH and fill the opening OH.
- the encapsulation member TFE may absorb some of the light provided to the light emitting device OEL by including the light absorbing agent of the above-described embodiment.
- the display devices DS and DS-a of one embodiment may include a sealing member TFE including the light absorbing agent of one embodiment.
- the display devices DS and DS-a according to an exemplary embodiment may further include functional layers that absorb or block external light in addition to the sealing member TFE.
- the input sensing unit TP, the polarization member PP, the window member WP, and the adhesive member (not shown) of the display device DS of the embodiment illustrated in FIG. 2A is external light. It can serve as a functional layer blocking some of them.
- the display device DS-1 of the embodiment shown in FIG. 2B may be a functional layer in which a light blocking layer LBL disposed on the display panel DP blocks some of external light.
- FIG. 6 is a cross-sectional view illustrating an embodiment of a light emitting device OEL included in a display panel DP according to an embodiment.
- the light emitting device OEL is formed on the first electrode EL1, the hole transport region HTR disposed on the first electrode EL1, the light emitting layer EML disposed on the hole transport region HTR, and the light emitting layer EML.
- the electron transport region ETR is disposed, and the second electrode EL2 is disposed on the electron transport region ETR, and the hole transport region HTR includes a hole injection layer HIL and a hole transport layer HTL.
- the electron transport region ETR may include an electron injection layer EIL and an electron transport layer ETL.
- the first electrode EL1 constituting the light emitting element OEL has conductivity.
- the first electrode EL1 may be formed of a metal alloy or a conductive compound.
- the first electrode EL1 may be an anode.
- the first electrode EL1 may be a pixel electrode.
- the first electrode EL1 may be a reflective electrode.
- the embodiment is not limited thereto.
- the first electrode EL1 may be a transmissive electrode or a semi-transmissive electrode.
- the first electrode EL1 is Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF / Ca, LiF / Al, Mo, Ti or a compound or mixture thereof (eg, a mixture of Ag and Mg).
- the first electrode EL1 may be a multi-layer metal film or a structure in which a metal film of ITO / Ag / ITO is stacked.
- the hole transport region HTR may have a multi-layer structure having a single layer made of a single material, a single layer made of a plurality of different materials, or a plurality of layers made of a plurality of different materials.
- the hole transport region HTR has a structure of a single layer made of a plurality of different materials, or a hole injection layer (HIL) / hole transport layer (HTL) stacked sequentially from the first electrode EL1, Hole injection layer (HIL) / hole transport layer (HTL) / buffer layer (not shown), hole injection layer (HIL) / buffer layer (not shown), hole transport layer (HTL) / buffer layer (not shown) or hole injection layer (HIL) / Hole transport layer (HTL) / electron blocking layer (not shown) may have a structure, but is not limited thereto.
- the hole transport region may include a hole injection layer (HIL) and a hole transport layer (HTL), and the hole injection layer (HIL) and the hole transport layer (HTL) are known hole injection materials and known materials, respectively.
- a hole transport material of can be used.
- the hole transport region HTR may be disposed on the first electrode EL1 in the opening OH defined in the pixel defining layer PDL and extending above the pixel defining layer PDL.
- the embodiment is not limited thereto, and the hole transport region HTR may be patterned to be disposed inside the opening OH.
- the emission layer EML is provided on the hole transport region HTR.
- the light emitting layer EML may have a single layer made of a single material, a single layer made of a plurality of different materials, or a multi-layer structure having a plurality of layers made of a plurality of different materials.
- the light emitting layer EML is not particularly limited as long as it is a commonly used material, but may be made of, for example, a material emitting red, green, and blue colors, and may include a fluorescent material or a phosphorescent material.
- the emission layer EML may include a host and a dopant.
- the emission layer EML may be disposed in the opening OH defined in the pixel defining layer PDL, but the embodiment is not limited thereto.
- the light emitting layer EML may include a host and a dopant, for example, the light emitting layer EML is DPEPO (Bis [2- (diphenylphosphino) phenyl] ether as a host material.
- DPEPO Bis [2- (diphenylphosphino) phenyl] ether
- the light emitting layer is a dopant material, a styryl derivative (eg, 1, 4-bis [2- (3-N-ethylcarbazoryl) vinyl] benzene (BCzVB), 4- (di-p-tolylamino) -4 '-[(di-p-tolylamino) styryl] stilbene (DPAVB), N- (4-((E) -2- (6-((E) -4- (diphenylamino) styryl) naphthalen-2- yl) vinyl) phenyl) -N-phenylbenzenamine (N-BDAVBi)), perylene and its derivatives (e.g.
- a styryl derivative eg, 1, 4-bis [2- (3-N-ethylcarbazoryl) vinyl] benzene (BCzVB), 4- (di-p-tolylamino) -4 '-[(di-p-tolylamino
- TBP 2, 5, 8, 11-Tetra-t-butylperylene
- pyrene and its derivatives For example, 1, 1-dipyrene, 1, 4-dipyrenylbenzene, 1, 4-Bis (N, N-Diphenylamino) pyrene).
- the display panel DP may include a quantum dot material in the emission layer EML.
- the core of the quantum dot can be selected from group II-VI compounds, group III-V compounds, group IV-VI compounds, group IV elements, group IV compounds, and combinations thereof.
- Group II-VI compounds include CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, MgS, and binary elements selected from the group consisting of mixtures thereof; AgInS, CuInS, CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS, CdHgSe, HgZn, HgZn, HgZn, HdZ A three-element compound selected from; And HgZnTeS, CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZn
- Group III-V compound is a binary element selected from the group consisting of GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb, and mixtures thereof; Ternary compounds selected from the group consisting of GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNP, InNAs, InNSb, InPAs, InPSb, GaAlNP, and mixtures thereof; And GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb, and mixtures thereof.
- the group IV-VI compound is a binary element selected from the group consisting of SnS, SnSe, SnTe, PbS, PbSe, PbTe, and mixtures thereof; Ternary compounds selected from the group consisting of SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe and mixtures thereof; And SnPbSSe, SnPbSeTe, SnPbSTe, and mixtures thereof.
- Group IV elements may be selected from the group consisting of Si, Ge and mixtures thereof.
- the group IV compound may be a binary compound selected from the group consisting of SiC, SiGe, and mixtures thereof.
- the binary element compound, the trielement compound, or the quaternary element compound may be present in the particles at a uniform concentration or may be present in the same particle because the concentration distribution is partially divided into different states.
- one quantum dot may have a core / shell structure surrounding another quantum dot. The interface between the core and the shell may have a concentration gradient in which the concentration of elements present in the shell decreases toward the center.
- the quantum dots may have a core-shell structure comprising a core comprising the nanocrystals described above and a shell surrounding the core.
- the shell of the quantum dot may serve as a protective layer for maintaining semiconductor properties by preventing chemical denaturation of the core and / or a charging layer for imparting electrophoretic properties to quantum dots.
- the shell may be a single layer or multiple layers.
- the interface between the core and the shell may have a concentration gradient in which the concentration of elements present in the shell decreases toward the center. Examples of the shell of the quantum dots include metal or non-metal oxides, semiconductor compounds, or combinations thereof.
- the oxide of the metal or non-metal is SiO 2 , Al 2 O 3 , TiO 2 , ZnO, MnO, Mn 2 O 3 , Mn 3 O 4 , CuO, FeO, Fe 2 O 3 , Fe 3 O 4 , Binary compounds such as CoO, Co 3 O 4 , NiO, or tri-element compounds such as MgAl 2 O 4 , CoFe 2 O 4 , NiFe 2 O 4 , CoMn 2 O 4 may be illustrated, but the present invention is limited thereto. It is not.
- the semiconductor compound is CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaSb, HgS, HgSe, HgTe, InAs, InP, InGaP, InSb, AlAs, AlP, AlSb, etc.
- the present invention is not limited thereto.
- the quantum dots may have a full width of half maximum (FWHM) of about 45 nm or less, preferably about 40 nm or less, more preferably about 30 nm or less, and improve color purity or color reproducibility in this range. You can. In addition, since light emitted through the quantum dots is emitted in all directions, the optical viewing angle can be improved.
- FWHM full width of half maximum
- the shape of the quantum dot is not particularly limited to that of a type commonly used in the art, but more specifically, spherical, pyramidal, multi-arm, or cubic nanoparticles, nanotubes, Nanowires, nanofibers, and nanoplate-like particles can be used.
- the quantum dots can control the color of light emitted according to the particle size, and accordingly, the quantum dots can have various emission colors such as blue, red, and green.
- the electron transport region ETR is provided on the light emitting layer EML.
- the electron transport region ETR may include at least one of a hole blocking layer (not shown), an electron transport layer ETL, and an electron injection layer EIL, but is not limited thereto.
- the electron injection layer EIL and the electron transport layer ETL have known electron injection materials and known electron transport materials, respectively. Can be used.
- the second electrode EL2 is provided on the electron transport region ETR.
- the second electrode EL2 may be a common electrode or a cathode.
- the second electrode EL2 may be formed of a metal alloy or a conductive compound.
- the second electrode EL2 may be a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.
- the second electrode EL2 is a transmissive electrode, the second electrode EL2 is a transparent metal oxide, for example, indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium ITZO tin zinc oxide).
- the second electrode EL2 is a semi-transmissive electrode or a reflective electrode
- the second electrode EL2 is Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF / Ca, LiF / Al, Mo, Ti or a compound or mixture thereof (eg, a mixture of Ag and Mg).
- the electron transport region ETR and the second electrode EL2 may be further extended and disposed on the pixel defining layer PDL as well as the region overlapping the first electrode EL1. Meanwhile, although not illustrated, the second electrode EL2 may be connected to the auxiliary electrode. When the second electrode EL2 is connected to the auxiliary electrode, the resistance of the second electrode EL2 can be reduced.
- the first electrode EL1 of the first electrode EL1 and the second electrode EL2 facing each other may be a reflective electrode, and the second electrode EL2 may be a transmissive electrode.
- the light emitting device (OEL) may be to emit the entire surface. However, the embodiment is not limited thereto.
- the display devices DS-1 and DS-1a of the embodiment illustrated in FIGS. 7 and 8 include a base layer BL, a circuit layer CL provided on the base layer BL, and a display element layer DD-1 It includes a display panel (DP-1) including a.
- the display panel DP-1 may be a quantum dot light emitting display panel.
- the display panel DP-1 includes a plurality of light emitting elements OEL-11, OEL-12, and OEL-13, and the light emitting elements OEL-11, OEL-12, and OEL-13 are quantum dots QD1. , QD2, QD3) may include a light emitting layer (EML-B, EML-G, EML-R).
- the quantum dots QD1, QD2, and QD3 included in the light emitting device OEL-1 according to an embodiment may be equally applied to quantum dots used in the above-described light emitting layer EML.
- the display devices DS-1 and DS-1a include a non-emission area NPXA and light emission areas PXA-B, PXA-G, and PXA-R. can do.
- Each of the light emitting regions PXA-B, PXA-G, and PXA-R may be a region in which light generated in each of the light emitting elements OEL-11, OEL-12, and OEL-13 is emitted.
- the emission regions PXA-B, PXA-G, and PXA-R may be spaced apart from each other on a plane.
- the plurality of light emitting devices OEL-11, OEL-12, and OEL-13 may emit light in different wavelength regions.
- the first light emitting layer EML-B of the first light emitting device OEL-11 may include a first quantum dot QD1.
- the first quantum dot QD1 may emit blue light that is the first color light.
- the second light emitting layer EML-G of the second light emitting element OEL-12 and the third light emitting layer EML-R of the third light emitting element OEL-13 have a second quantum dot QD2 and a third quantum dot ( QD3).
- the second quantum dot QD2 and the third quantum dot QD3 may emit green light as the second color light and red light as the third color light, respectively.
- the sizes of the first to third quantum dots QD1, QD2, and QD3 may be different from each other.
- the first quantum dot QD1 used in the first light emitting element OEL-11 emitting light in a relatively short wavelength region is the second light emitting element OEL-12 emitting light in a relatively long wavelength region.
- the average diameter may be relatively small.
- the embodiment is not limited thereto, and the first to third quantum dots QD1, QD2, and QD3 may have similar diameters.
- FIG. 7 illustrates an embodiment of the display device DS-1 including the polarizing member PP disposed on the display panel DP-1, and in FIG. 8, it is disposed on the display panel DP-1.
- An exemplary embodiment of the display device DS-1a including the color filter layer CFL is illustrated.
- the polarization member PP and the color filter layer CFL may block external light provided to the display panel DP from outside of the display devices DS-1 and DS-1a.
- the polarizing member PP and the color filter layer CFL may function to prevent reflection by minimizing reflection by external light.
- the same contents as those described with reference to FIG. 2A may be applied.
- the color filter layer CFL may include a light blocking part BM and a color filter part CF.
- the color filter unit CF may include a plurality of filters CF-B, CF-G, and CF-R. That is, the color filter layer CFL includes a first filter CF-B that transmits the first color light, a second filter CF-G that transmits the second color light, and a third filter CF that transmits the third color light. -R).
- the first filter CF-B may be a blue filter
- the second filter CF-G may be a green filter
- the third filter CF-R may be a red filter.
- Each of the filters CF-B, CF-G, and CF-R may include a polymer photosensitive resin and a pigment or dye.
- the first filter (CF-B) includes a blue pigment or dye
- the second filter (CF-G) contains a green pigment or dye
- the third filter (CF-R) contains a red pigment or dye. May be
- the embodiment is not limited thereto, and the first filter CF-B may not include a pigment or a dye.
- the first filter (CF-B) may include a polymer photosensitive resin and no pigment or dye.
- the first filter CF-B may be transparent.
- the first filter CF-B may be formed of a transparent photosensitive resin.
- the light blocking part BM may be a black matrix.
- the light blocking part BM may be formed of an organic light blocking material including a black pigment or a black dye or an inorganic light blocking material.
- the light blocking unit BM may prevent light leakage, and may divide a boundary between adjacent filters CF-B, CF-G, and CF-R.
- a color filter layer (CFL) and a buffer layer (BFL) may be further included.
- the buffer layer BFL may be a protective layer that protects the filters CF-B, CF-G, and CF-R.
- the buffer layer BFL may be an inorganic material layer including at least one inorganic material among silicon nitride, silicon oxide, and silicon oxynitride.
- the buffer layer BFL may be formed of a single layer or a plurality of layers.
- the first filter CF-B of the color filter layer CFL is shown to overlap the second filter CF-G and the third filter CF-R, but the embodiment It is not limited to this.
- the first to third filters CF-B, CF-G, and CF-R may be divided by the light blocking part BM and non-overlapping with each other.
- each of the first to third filters CF-B, CF-G, and CF-R includes a blue light emitting area (PXA-B), a green light emitting area (PXA-G), and a red light emitting area ( PXA-R) may be disposed corresponding to each.
- the display device DS-1a may include a base substrate BS disposed on the color filter layer CFL.
- the base substrate BS may be a member that provides a base surface on which the color filter layer CFL or the like is disposed.
- the base substrate BS may be a glass substrate, a metal substrate, a plastic substrate, or the like.
- the embodiment is not limited thereto, and the base substrate BS may be an inorganic layer, an organic layer, or a composite material layer.
- the display device DS-2 of the embodiment illustrated in FIG. 9 includes a display panel DP including a base layer BL, a circuit layer CL provided on the base layer BL, and a light emitting device OEL-2. -2).
- the display panel DP-2 may be an organic electroluminescent display panel.
- the light emitting device OEL-2 included in the display panel DP-2 may be a tandem type light emitting device as illustrated in FIG. 10.
- the light emitting device OEL-2 includes a plurality of light emitting electrodes disposed between the first electrode EL1 and the second electrode EL2 and the first electrode EL1 and the second electrode EL2 facing each other. It may be to include units (LU-1, LU-2, LU-3). The light emitting units LU-1, LU-2, and LU-3 may be stacked in the thickness direction. A charge generation layer CGL may be disposed between the light emitting units LU-1, LU-2, and LU-3.
- Each of the light emitting units LU-1, LU-2, and LU-3 includes a hole transport region (HTR), a light emitting layer (EML-B1, EML-B2, EML-B3), and an electron transport region (ETR) You can.
- the light emitting layers EML-B1, EML-B2, and EML-B3 included in each of the light emitting units LU-1, LU-2, and LU-3 may emit light having the same wavelength range.
- the light emitting layers EML-B1, EML-B2, and EML-B3 may all emit blue light.
- the embodiment is not limited thereto, and the light emitting layers EML-B1, EML-B2, and EML-B3 may emit light in different wavelength regions.
- the display device DS-2 may include a color conversion layer CCL disposed on the display panel DP-2. Also, the display device DS-2 according to an exemplary embodiment may further include a color filter layer CFL. The color filter layer CFL may be disposed between the base substrate BS and the color conversion layer CCL.
- the color conversion layer CCL may include a plurality of partition walls BK spaced apart from each other and color control units CCP-B, CCP-G, and CCP-R disposed between the partition walls BK.
- the partition wall portion BK may be formed of a polymer resin and a liquid repellent additive.
- the partition wall part BK may be formed of a light absorbing material, or may be formed of a pigment or dye (PG).
- PG pigment or dye
- the partition wall part BK may be formed by including a black pigment or black dye to implement a black partition wall part.
- carbon black or the like may be used as a black pigment or a black dye, but embodiments are not limited thereto.
- the color conversion layer includes a first color control unit (CCP-B) that transmits the first color light, a second color control unit (CCP-G) including quantum dots that convert the first color light into the second color light, and the first color control layer (CCP-G).
- a third color control unit (CCP-R) including an anchor point for converting color light into third color light may be included.
- the second color light may be light having a longer wavelength region than the first color light
- the third color light may be light having a longer wavelength region than the first color light and the second color light.
- the first color light may be blue light
- the second color light may be green light
- the third color light may be red light.
- the quantum dots included in the color control units (CCP-B, CCP-G, CCP-R) the same contents as those for the quantum dots used in the light emitting layer EML may be applied.
- the color conversion layer CCL may further include a capping layer CPL.
- the capping layer CPL may be disposed on the color control parts CCP-B, CCP-G, and CCP-R and the partition wall part BK.
- the capping layer CPL may serve to prevent penetration of moisture and / or oxygen (hereinafter, referred to as “moisture / oxygen”).
- the capping layer (CPL) is disposed on the color control units (CCP-B, CCP-G, CCP-R) to prevent the color control units (CCP-B, CCP-G, CCP-R) from being exposed to moisture / oxygen. have.
- the capping layer CPL may include at least one inorganic layer.
- the display device DS-2 includes the color filter layer CFL disposed on the color conversion layer CCL, and the color filter layer CFL and the base substrate BS are the same as described in FIG. 8.
- 11 to 13 are cross-sectional views showing embodiments of a sealing member according to an embodiment. 11 to 13, the sealing members TFE, TFE-1, and TFE-2 according to an embodiment may be formed by including at least one organic layer and at least one inorganic layer.
- the encapsulation member TFE of the embodiment illustrated in FIG. 11 may include one organic film ML and inorganic films IL1 and IL2 disposed on the upper and lower surfaces of the organic film ML, respectively. . That is, the sealing member TFE of one embodiment may have a structure stacked in the order of the first inorganic film IL1, the organic film ML, and the second inorganic film IL2.
- the organic layer ML may include the light absorber LA of one embodiment.
- the organic layer ML may be formed of a light absorbing agent LA and a base resin OR.
- the base resin (OR) may be formed from an acrylic monomer and a photoinitiator.
- the base resin (OR) may be formed through a UV curing process from a plurality of different acrylic monomers and a photoinitiator, or one acrylic monomer and a photo initiator.
- the acrylic monomer may be a methacrylate-based monomer.
- the organic layer ML may be formed to have a thickness of 3 ⁇ m or more and 30 ⁇ m or less.
- the light absorbing agent LA may be included in an amount of 1 wt% or more and 5 wt% or less based on the weight of the monomer forming the base resin (OR).
- the light absorbing agent (LA) is included in an amount of less than 1 wt% based on the weight of the monomer, light absorption in the organic layer ML may be lowered, so that an external light blocking effect may not appear.
- the light absorber (LA) is included in an amount of more than 5 wt% based on the weight of the monomer, the activation of the photoinitiator used to form the organic film (ML) may be reduced, and the organic film (ML) forming process using ultraviolet light There may be a problem that phase separation occurs afterwards.
- the monomer used for forming the organic layer (ML) may be at least one of the following M1 to M4.
- the photoinitiator used for forming the organic layer (ML) may be activated in a wavelength range of 360 nm or more and 400 nm or less.
- the photoinitiator can be I1 or I2 below.
- the organic layer ML may absorb ultraviolet light by including the light absorber of the above-described embodiment.
- the organic layer ML may have a transmittance of 10% or less at a wavelength of 405 nm, a transmittance of 70% or more at a wavelength of 430 nm, and a transmittance of 97% or more at a wavelength of 450 nm.
- the inorganic films IL1 and IL2 may be formed of at least one of SiON, SiN X , SiO X , SiC, Al 2 O 3 , and ZrO X.
- the first inorganic layer IL1 and the second inorganic layer IL2 may be layers formed of the same material.
- the first inorganic film IL1 and the second inorganic film IL2 may be formed of different materials from each other.
- the first inorganic film IL1 and the second inorganic film IL2 may be formed to have a thickness of 0.5 ⁇ m or more and 2.0 ⁇ m or less, respectively.
- the inorganic films IL1 and IL2 may be a single layer containing one material, or may have a plurality of layers each containing a different material.
- FIGS. 12 and 13 are views showing embodiments of the sealing member according to an embodiment, in the description of the embodiments of the sealing member shown in FIGS. 12 and 13 to the sealing member (TFE) described in FIG. Descriptions that overlap with the description are not described again, and the differences are mainly explained.
- the sealing member TFE-1 illustrated in FIG. 8 includes a first light absorbing agent LA-a that absorbs light in different wavelength regions to the organic layer ML-a. ) And a second light absorbing agent (LA-b). At least one of the first light absorber (LA-a) and the second light absorber (LA-b) may have a structure of the light absorber of the above-described embodiment. However, the wavelength of the absorbed light may be partially different between the first light absorber LA-a and the second light absorber LA-b. Meanwhile, FIG.
- the organic film ML-a in the sealing member TFE-1 of one embodiment has three or more different light. Absorbents. Meanwhile, all of the different light absorbers may be the light absorbers of the above-described embodiment. In addition, unlike this, the organic layer ML-a may further include a known light absorber in addition to the light absorber of one embodiment.
- the sealing member TFE-2 includes n inorganic films IL1, ..., and ILn and (n-1) organic films ML1, ..., and ML (n-1). It may be. Meanwhile, n may be an integer of 2 or more.
- the first inorganic film IL1 among the n inorganic films IL1, ..., and ILn of the encapsulation member TFE-2 may be disposed in direct contact with the second electrode EL2 (FIG. 5) of the light emitting element OEL. have.
- the (n-1) organic films ML1, ..., ML (n-1) of the encapsulation member TFE-2 may be alternately arranged with the n inorganic films IL1, ..., ILn.
- the (n-1) organic layers ML1, ..., and ML (n-1) may have a larger thickness than the n inorganic layers IL1, ..., and ILn.
- n inorganic films IL1, ..., ILn may include the same or different inorganic materials, and may have the same or different thicknesses.
- (n-1) organic layers ML1,..., ML (n-1) may include the same or different organic materials, and may have the same or different thicknesses.
- At least one of the (n-1) organic layers ML1, ..., and ML (n-1) may include the light absorber of the above-described embodiment.
- Any one of the (n-1) organic films ML1,..., ML (n-1) in the encapsulation member TFE-2 of one embodiment may include the light absorber of one embodiment.
- a plurality of organic films selected from (n-1) organic films ML1, ..., ML (n-1) in the sealing member TFE-2 of one embodiment may include the light absorber of one embodiment. You can.
- all of the (n-1) organic layers ML1,..., ML (n-1) may each include the light absorber of one embodiment.
- the light absorbers (LA1,..., LA (n-1)) of one embodiment included in each of the (n-1) organic films ML1,..., ML (n-1) are all the same or at least one It can be different.
- the (n-1) organic layers ML1,..., ML (n-1) may further include a known light absorber in addition to the light absorber of the above-described embodiment.
- 14 is a graph measuring light transmittance in the organic film of the encapsulation member including the light absorber of one embodiment.
- 14 shows a transmittance according to a wavelength of a single-layer organic film manufactured to a thickness of 10 ⁇ m, and the organic film is formed by including the light absorbent of one embodiment at 3 wt% based on the total monomer content.
- the light absorber used in the embodiment shown in FIG. 14 corresponds to compound 35 of compound group 2, but other compounds of compound group 1 or compound group 2 corresponding to the light absorber according to an embodiment of the present invention are organic films. Similar results can be obtained when incorporated as a material. Referring to the graph of FIG. 14, the organic film exhibits a transmittance of 10% or less at a wavelength of 405 nm, from which it can be seen that the light absorber of one embodiment effectively absorbs light in a wavelength region around 405 nm.
- the organic film of the encapsulation member including the light absorber of one embodiment exhibits a transmittance of 70% or more at a wavelength of 430 nm and a transmittance of 97% or more at a wavelength of 450 nm. That is, when the organic film has a transmittance of 70% or more at 430 nm and a high transmittance of 97% or more in the visible light region of 450 nm or more, the organic film does not overlap with the wavelength region of light emitted from the light emitting device (OEL, FIG. 5), and thus the organic film contains a light absorber. Edo may not decrease the light emission efficiency of the light emitting device (OEL, FIG. 5).
- FIG. 15 is a graph measuring light transmittance when a polarizing member is disposed on an encapsulating member and an encapsulating member according to an embodiment.
- FIG. 15 is a measurement of transmittance according to wavelength after providing a polarizing member on an organic film manufactured under the same conditions as used in evaluating transmittance of FIG. 14. Referring to the graph of FIG. 15, when a polarizing member is included on the organic film, a transmittance of 5% or less is exhibited at a wavelength of 405 nm, from which the light absorber of one embodiment effectively absorbs light in a wavelength region around 405 nm. Can be confirmed.
- the transmittance is 30% or less at a wavelength of 430 nm.
- the transmittance graph of FIG. 15 compared to FIG. 14 shows a low transmittance even in a wavelength region of 400 nm or less. That is, when the polarizing member is further included on the encapsulation member as compared to FIG. 14, the transmittance in the short wavelength region of 400 nm or less can be further lowered. From this, when the polarizing member is further included on the encapsulation member, the UV wavelength region It can be seen that the light is more effectively blocked.
- the comparative example is a case in which the organic film of the sealing member does not include a light absorber
- the embodiment is a case in which the organic film of the sealing member includes the light absorber of one embodiment.
- the light absorber used in the embodiment shown in FIG. 16 may be the same as the light absorber used in the embodiment shown in FIG. 14.
- the comparative example exhibited damaged surface characteristics when the exposure time of 6 hours elapsed, and in the case of the example, no change in surface characteristics was observed even when the exposure time elapsed up to 18 hours.
- the light absorber of one embodiment effectively absorbs light in the 405 nm wavelength region, and accordingly, the sealing member according to an embodiment can effectively block external light in the 405 nm wavelength region.
- the display device of one embodiment includes a light absorbing agent of an embodiment including a hexagonal heterocycle including two or more nitrogen atoms as a ring forming atom and three different substituents substituted for the hexagonal heterocycle in a sealing member, and a light emitting device By effectively blocking the external light incident to the can exhibit improved reliability.
- the at least one organic film of the encapsulation member includes a light absorbing agent of one embodiment including six different heterocycles including two or more nitrogen atoms as ring forming atoms and three different substituents substituted for the hexagonal heterocycle By including external light incident on the light emitting device, the display quality can be improved.
- Compound 1 of the light absorber compound group 1 may be synthesized by, for example, the following scheme 1-1.
- Compound 15 of the light absorber compound group 1 may be synthesized, for example, by the following reaction scheme 1-2.
- Compound 25 of the light absorber compound group 1 may be synthesized by, for example, the following reaction scheme 1-3.
- Compound 36 of the light absorber compound group 1 may be synthesized, for example, by the following reaction schemes 1-4.
- Compound 56 of the light absorber compound group 1 according to an embodiment may be synthesized, for example, by the following reaction schemes 1-5.
- Compound 78 of the light absorber compound group 1 may be synthesized, for example, by the following reaction schemes 1-6.
- Compound 95 of the light absorber compound group 1 according to an embodiment may be synthesized, for example, by the following reaction schemes 1-7.
- Compound 115 of the light absorber compound group 1 may be synthesized, for example, by the following reaction schemes 1-8.
- Compound 148 of the light absorber compound group 1 may be synthesized, for example, by the following reaction schemes 1-9.
- Compound 177 of the light absorber compound group 1 may be synthesized, for example, by the following reaction schemes 1-10.
- Table 1 below shows NMR data for the example compounds of the compound group 1 synthesized by the above-described synthesis method.
- Example compound NMR (400hz) Compound 2 of compound group 1 9.61 (brs, 1H), 9.27 (s, 1H), 9.08 (d, 1H), 8.84 (d, 1H), 8.17 (d, 1H), 7.92 (m, 2H), 7.81-7.54 (m, 6H) , 7.32 (t, 1H), 7.06 (d, 1H), 7.02-7.00 (m, 2H), 3.85 (s, 3H) Compound 15 of compound group 1 9.61 (brs, 1H), 8.52 (d, 1H), 8.31 (d, 1H), 8.16 (d, 1H), 8.08-8.04 (m, 4H), 7.92 (m, 1H), 7.7-7.55 (m, 2H), 7.32 (t, 1H), 7.06-7.00 (m, 2H), 5.24 (m, 1H), 1.35 (d, 2H) Compound 25 of compound group 1 15.30 (s, 1H), 8.73 (d, 1H), 8.31 (d, 1H), 8.21-7.88
- Compound 1 of the light absorber compound group 2 may be synthesized, for example, by the following scheme 2-1.
- Compound 15 of the light absorber compound group 2 may be synthesized, for example, by the following scheme 2-2.
- Compound 20 of the light absorber compound group 2 according to an embodiment may be synthesized by, for example, the following reaction scheme 2-3.
- Compound 24 of the light absorber compound group 2 may be synthesized, for example, by the following scheme 2-4.
- Compound 35 of the light absorber compound group 2 according to an embodiment may be synthesized by, for example, the following scheme 2-5.
- Compound 40 of the light absorber compound group 2 according to an embodiment may be synthesized, for example, by the following schemes 2-6.
- the compound 35 3.6g (yield 85%) was obtained by the same method as the synthesis method of compound 2, except that 3.7g of intermediate 40-1 was used. The obtained compound was confirmed to be Compound 40 using LC-MS. (C 30 H 23 N 3 O 2 , Calculated: 457.18, Measured: 457.20)
- Compound 75 of the light absorber compound group 2 according to an embodiment may be synthesized, for example, by the following scheme 2-7.
- Compound 94 of the light absorber compound group 2 may be synthesized, for example, by the following schemes 2-8.
- Compound 102 of the light absorber compound group 2 may be synthesized, for example, by the following reaction schemes 2-9.
- Compound 154 of the light absorber compound group 2 may be synthesized, for example, by the following reaction schemes 2-10.
- Compound 169 of the light absorber compound group 2 may be synthesized, for example, by the following scheme 2-11.
- Compound 227 of the light absorber compound group 2 according to an embodiment may be synthesized, for example, by the following reaction schemes 2-12.
- Compound 280 of the light absorber compound group 2 may be synthesized, for example, by the following reaction schemes 2-13.
- Compound 295 of the light absorber compound group 2 according to an embodiment may be synthesized, for example, by the following reaction schemes 2-14.
- Compound 299 of the light absorber compound group 2 according to an embodiment may be synthesized, for example, by the following reaction schemes 2-15.
- Compound 320 of the light absorber compound group 2 may be synthesized, for example, by the following reaction schemes 2-16.
- the compound 320 2.4g (yield 66%) was obtained by the same method as the synthesis method of the intermediate 24-3, except that 3.1g of the intermediate 320-1 and 0.74g of 2-ethylhexan-1-ol were used.
- the obtained compound was confirmed to be Compound 320 using LC-MS. (C 41 H 47 N 3 O 4 , Calculated: 645.36, Measured: 645.39)
- Table 2 below shows NMR data for example compounds synthesized by the above-described synthesis method.
- Example compound NMR (400hz) Compound 2 of compound group 2 9.61 (brs, 1H), 9.27 (s, 1H), 9.08 (d, 1H), 8.84 (d, 1H), 8.17 (d, 1H), 7.92 (m, 2H), 7.81-7.54 (m, 6H) , 7.32 (t, 1H), 7.06 (d, 1H), 7.02-7.00 (m, 2H), 3.85 (s, 3H) Compound 15 of compound group 2 9.61 (brs, 1H), 8.52 (d, 1H), 8.31 (d, 1H), 8.16 (d, 1H), 8.08-8.04 (m, 4H), 7.92 (m, 1H), 7.7-7.55 (m, 2H), 7.32 (t, 1H), 7.06-7.00 (m, 2H), 5.24 (m, 1H), 1.35 (d, 2H) Compound 20 of compound group 2 15.30 (s, 1H), 8.73 (d, 1H), 8.31 (d, 1H), 8.21-7.88
- the transmittance of the organic film formed with the light absorber of one embodiment was evaluated at 405 nm wavelength and 430 nm wavelength, respectively.
- Table 3 shows light absorber compounds used in Examples and Comparative Examples.
- Example compound Transmittance (%) (@ 405nm) Transmittance (@ 430nm) Example 1-1 Compound group 1 Compound 2 3.6 24.2
- Example 1-2 Compound Group 1 Compound 15 3.4 33.3
- Example 1-3 Compound Group 1 Compound 25 3.5 34.6
- Example 1-4 Compound Group 1 Compound 36 3.0 30.0
- Example 1-5 Compound Group 1 Compound 56 2.9 31.5
- Example 1-6 Compound Group 1 Compound 78 2.6 27.5
- Example 1-7 Compound Group 1 Compound 95 2.3 24.3
- Example 1-8 Compound Group 1 Compound 115 2.2 21.2
- Example 1-9 Compound Group 1 Compound 148 2.4 23.2
- Example 1-10 Compound Group 1 Compound 177 2.1 28.5
- Example 2-1 Compound group 2 Compound 2 3.6 24.2
- Example 2-2 Compound Group 2 Compound 15 3.4 33.3
- Example 2-3 Compound Group 2 Compound 20 3.5 34.6
- Example 2-4 Compound Group 2 Compound 24 3.3 31.5
- the transmittance value is higher at 430 nm than the comparative examples. That is, the transmittance value at 430 nm of the organic films included in the examples is higher because the transmittance values when the polarizing member is added on the organic film formed with the compounds of the examples and comparative examples are higher. It can be seen that the transmittance at 430 nm of the organic films included in is greater than that.
- the embodiment shows that ultraviolet light or some visible light is effectively absorbed by the organic film from a low transmittance value at a wavelength of 405 nm, and also a blue wavelength from a relatively high transmittance value at a wavelength of 430 nm. It can be seen that the efficiency of the light emitted from the light emitting device is minimized by minimizing the absorption of light in the organic layer. That is, the embodiment may exhibit excellent display quality compared to the comparative example by lowering the absorbance of light in the blue wavelength region while having excellent reliability characteristics by making the absorption rate of ultraviolet light similar to that of the comparative example.
- the light absorber of one embodiment may efficiently absorb a portion of visible light and ultraviolet rays by including a hexagonal heterocycle including two or more nitrogen atoms as a ring forming atom and three substituents substituted for the hexagonal heterocycle and different from each other. .
- the light absorber of one embodiment is a pyrimidine core or a triazine core, a first substituent of a phenyl group substituted with at least one hydroxy group, a second substituent of a condensed ring fused with three or more rings, and substituted or unsubstituted
- the light absorbing agent according to an embodiment of the present invention has excellent light absorption against ultraviolet light and a part of visible light, and the light emitting element of the display device including the encapsulating member is efficiently prevented from being deteriorated by external light, thereby achieving good efficiency and It can exhibit excellent life characteristics.
- the present invention relates to a light absorbing agent having excellent light absorption against ultraviolet rays and some visible light, and a light emitting device having good efficiency and excellent lifespan characteristics by including it in a sealing member, and has high industrial applicability.
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Abstract
Description
실시예 화합물 | NMR (400hz) |
화합물군 1의 화합물 2 | 9.61(brs, 1H), 9.27(s, 1H), 9.08(d, 1H), 8.84(d, 1H), 8.17(d, 1H), 7.92(m, 2H), 7.81-7.54(m, 6H), 7.32(t, 1H), 7.06(d, 1H), 7.02-7.00(m, 2H), 3.85(s, 3H) |
화합물군 1의 화합물 15 | 9.61(brs, 1H), 8.52(d, 1H), 8.31(d, 1H), 8.16(d, 1H), 8.08-8.04(m, 4H), 7.92(m, 1H), 7.7-7.55(m, 2H), 7.32(t, 1H), 7.06-7.00(m, 2H), 5.24(m, 1H), 1.35(d, 2H) |
화합물군 1의 화합물 25 | 15.30 (s, 1H), 8.73(d, 1H), 8.31(d, 1H), 8.21-7.88 (m, 7H), 7.86(d, 1H), 7.40(m, 1H), 7.08-7.00(m,2H) 4.64(t, 2H), 2.06(m, 2H), 1.16(t, 3H) |
화합물군 1의 화합물 36 | 15.30 (s, 1H), 9.01(s, 1H), 8.81(d, 1H), 8.46(d, 1H), 7.97-7.95(m, 2H), 7.79-7.36(m, 5H), 7.07-7.00(m, 2H), 4.67(t, 2H), 1.94-1.85(m, 2H), 1.68-1.58(m, 2H), 1.29-1.23(m, 4H) 0.97-0.98(m, 3H) |
화합물군 1의 화합물 56 | 15.30(s, 1H), 8.74(d, 1H), 8.31(d, 1H), 8.19-7.86(m, 8H), 7.40(m, 1H), 7.08-7.00(m, 2H), 4.29(d, 1H), 4.17(d, 1H), 2.00-1.74(m, H), 1.68-1.59(m, H), 1.43-1.18(m, H), 0.89(q, 3H) |
화합물군 1의 화합물 78 | 15.30(s, 1H), 8.73(d, 1H), 8.31(d, 1H), 8.22-7.94(m, 6H), 7.88(d, 1H), 7.40-7.34(m, 1H), 7.10-7.00(m, 2H), 5.86(m, 1H),2.26-2.16(m, 2H), 1.93-1.74(m, 4H), 1.72-1.62(m, 2H) |
화합물군 1의 화합물 95 | 15.30(s, 2H), 8.75(d, 1H), 8.31(d, 1H), 8.16-8.02(m, 6H), 7.86(d, 1H), 7.16(t, 1H), 6.17(d, 2H), 4.28(ab, 2H), 2.00-1.80(m, 2H), 1.71-1.60(m, 1H), 1.48-1.19(m, 6H), 0.91(t, 3H), 0.84(t, 3H) |
화합물군 1의 화합물 115 | 12.81(s, 3H), 9.01(m, 1H), 8.85-8.76(m, 2H), 8.46-8.44(m, 1H), 7.98-7.95(m, 1H), 7.82-7.77(m, 1H), 7.69-7.60(m, 2H), 7.56(dt, 1H), 5.88(s, 2H), 5.50(m, 1H), 1.37(d, 3H) |
화합물군 1의 화합물 148 | 15.30(s, 1H), 9.46(s, 1H), 8.76-8.65(m, 3H), 8.02-7.96(m, 2H), 7.81(t, 1H), 7.65-7.56(m, 3H), 7.40(m, 1H), 7.08-7.00(m, 2H), 4.67(t, 2H), 1.95-1.91(m, 2H), 1.66-1.58(m, 2H), 1.32-1.24(m, 4H), 0.96-0.87(m, 3H) |
화합물군 1의 화합물 177 | 10.90(s, 2H), 9.01(s, 1H), 8.81(d, 2H), 8.46(m, 1H), 8.22(d, 1H), 7.98(d, 1H), 7.78(t, 1H). 7.66-7.53(m, 3H), 6.53(s, 1H), 6.31(d, 1H), 4.36(ab, 2H), 2.20(m, 1H), 1.43-1.20(m, 6H), 0.96-0.87(m, 6H) |
실시예 화합물 | NMR (400hz) |
화합물군 2의화합물 2 | 9.61(brs, 1H), 9.27(s, 1H), 9.08(d, 1H), 8.84(d, 1H), 8.17(d, 1H), 7.92(m, 2H), 7.81-7.54(m, 6H), 7.32(t, 1H), 7.06(d, 1H), 7.02-7.00(m, 2H), 3.85(s, 3H) |
화합물군 2의화합물 15 | 9.61(brs, 1H), 8.52(d, 1H), 8.31(d, 1H), 8.16(d, 1H), 8.08-8.04(m, 4H), 7.92(m, 1H), 7.7-7.55(m, 2H), 7.32(t, 1H), 7.06-7.00(m, 2H), 5.24(m, 1H), 1.35(d, 2H) |
화합물군 2의화합물 20 | 15.30 (s, 1H), 8.73(d, 1H), 8.31(d, 1H), 8.21-7.88 (m, 7H), 7.86(d, 1H), 7.40(m, 1H), 7.08-7.00(m,2H) 4.64(t, 2H), 2.06(m, 2H), 1.16(t, 3H) |
화합물군 2의화합물 24 | 15.30 (s, 1H), 9.01(s, 1H), 8.81(d, 1H), 8.46(d, 1H), 7.97-7.95(m, 2H), 7.79-7.36(m, 5H), 7.07-7.00(m, 2H), 4.67(t, 2H), 1.94-1.85(m, 2H), 1.68-1.58(m, 2H), 1.29-1.23(m, 4H) 0.97-0.98(m, 3H) |
화합물군 2의화합물 35 | 15.30(s, 1H), 8.74(d, 1H), 8.31(d, 1H), 8.19-7.86(m, 8H), 7.40(m, 1H), 7.08-7.00(m, 2H), 4.29(d, 1H), 4.17(d, 1H), 2.00-1.74(m, H), 1.68-1.59(m, H), 1.43-1.18(m, H), 0.89(q, 3H) |
화합물군 2의화합물 40 | 15.30(s, 1H), 8.73(d, 1H), 8.31(d, 1H), 8.22-7.94(m, 6H), 7.88(d, 1H), 7.40-7.34(m, 1H), 7.10-7.00(m, 2H), 5.86(m, 1H),2.26-2.16(m, 2H), 1.93-1.74(m, 4H), 1.72-1.62(m, 2H) |
화합물군 2의화합물 75 | 15.30(s, 2H), 8.75(d, 1H), 8.31(d, 1H), 8.16-8.02(m, 6H), 7.86(d, 1H), 7.16(t, 1H), 6.17(d, 2H), 4.28(ab, 2H), 2.00-1.80(m, 2H), 1.71-1.60(m, 1H), 1.48-1.19(m, 6H), 0.91(t, 3H), 0.84(t, 3H) |
화합물군 2의화합물 94 | 12.81(s, 3H), 9.01(m, 1H), 8.85-8.76(m, 2H), 8.46-8.44(m, 1H), 7.98-7.95(m, 1H), 7.82-7.77(m, 1H), 7.69-7.60(m, 2H), 7.56(dt, 1H), 5.88(s, 2H), 5.50(m, 1H), 1.37(d, 3H) |
화합물군 2의화합물 102 | 15.30(s, 1H), 9.46(s, 1H), 8.76-8.65(m, 3H), 8.02-7.96(m, 2H), 7.81(t, 1H), 7.65-7.56(m, 3H), 7.40(m, 1H), 7.08-7.00(m, 2H), 4.67(t, 2H), 1.95-1.91(m, 2H), 1.66-1.58(m, 2H), 1.32-1.24(m, 4H), 0.96-0.87(m, 3H) |
화합물군 2의화합물 154 | 10.90(s, 2H), 9.01(s, 1H), 8.81(d, 2H), 8.46(m, 1H), 8.22(d, 1H), 7.98(d, 1H), 7.78(t, 1H). 7.66-7.53(m, 3H), 6.53(s, 1H), 6.31(d, 1H), 4.36(ab, 2H), 2.20(m, 1H), 1.43-1.20(m, 6H), 0.96-0.87(m, 6H) |
화합물군 2의화합물 169 | 15.30(s, 1H), 8.65(m, 1H), 8.63(m, 1H), 8.36(m, 1H), 8.23-8.20(m, 1H), 8.14(s, 1H), 8.07-8.00(m, 2H), 7.91-7.86(m, 1H), 7.42-7.35(m, 3H), 7.07(t, 1H), 7.02(dd, 1H), 4.01(s, 3H) |
화합물군 2의화합물 227 | 15.30(s, 1H), 8.62(s, 1H), 8.41(td, 1H), 7.98(dd, 1H), 7.77(d, 1H), 7.74(m, 1H), 7.69(dt, 1H), 7.48-7.32(m, 5H), 7.26(dt, H), 7.16(dt, 1H), 7.06(t, 1H), 7.00(dd, 1H), 4.57(t, 2H), 1.90(p, 2H), 1.68(s, 6H), 1.58(p, 2H), 1.35-1.22(m, 14H), 0.87(t, 3H) |
화합물군 2의화합물 280 | 15.30(s, 1H), 8.74(d, 1H), 8.31(d, 1H), 8.19(d, 1H), 8.15-8.08(m, 4H), 8.01(m, 1H), 7.88(d, 1H), 7.86(dd, 1H), 6.33(m, 1H), 4.30(ab, 2H), 3.89(t, 2H), 1.99-1.90(m, 1H), 1.85-1.75(m, 3H), 1.69-1.60(m, 1H), 1.51-1.19(m, 24H), 0.91-0.83(m, 9H) |
화합물군 2의화합물 295 | 15.30(s, 1H), 8.74(d, 1H), 8.31(d, 1H), 8.19-8.08(m, 5H), 8.02(t, 1H), 7.88(d, 1H), 7.83(dd, 1H), 6.36(dd, H), 6.31(t, 1H), 4.59(t, 2H), 4.09(dd, 1H), 3.88(d, 1H), 1.94-1.74(m, 4H), 1.63-1.51(m, 3H), 1.39-1.15(m, 22H), 0.90-0.85(m, 9H) |
화합물군 2의화합물 299 | 15.30(s, 2H), 9.04(m, 1H), 8.81-8.79(m, 2H), 8.46-8.44(m, 2H), 7.98-7.96(m, 1H), 7.82(t, 1H), 7.69-7.52(m, 3H), 5.77(s, 2H), 4.01(s, 3H), 3.77(s, 3H) |
화합물군 2의화합물 320 | 15.30(s, 2H), 8.73(d, 1H), 8.31(d, 1H), 8.19-8.13(m, 3H), 8.10(t, 1H), 8.02-7.99(m, 2H) 5.75(s, 2H), 4.29(d, 1H), 4.18(m, 1H), , 4.13-4.12(m, H), 4.11(d, 1H), 3.95(dd, 1H) 1.99-1.90(m, 2H), 1.87-1.72(m, 2H), 1.69-1.54(m, 2H), 1.42-1.14(m, 12H), 0.91-0.85(m, 12H) |
구분 | 실시예 화합물 | 투과율(%)(@ 405nm) | 투과율(@ 430nm) |
실시예 1-1 | 화합물군 1 화합물 2 | 3.6 | 24.2 |
실시예 1-2 | 화합물군 1 화합물 15 | 3.4 | 33.3 |
실시예 1-3 | 화합물군 1 화합물 25 | 3.5 | 34.6 |
실시예 1-4 | 화합물군 1 화합물 36 | 3.0 | 30.0 |
실시예 1-5 | 화합물군 1 화합물 56 | 2.9 | 31.5 |
실시예 1-6 | 화합물군 1 화합물 78 | 2.6 | 27.5 |
실시예 1-7 | 화합물군 1 화합물 95 | 2.3 | 24.3 |
실시예 1-8 | 화합물군 1 화합물 115 | 2.2 | 21.2 |
실시예 1-9 | 화합물군 1 화합물 148 | 2.4 | 23.2 |
실시예 1-10 | 화합물군 1 화합물 177 | 2.1 | 28.5 |
실시예 2-1 | 화합물군 2 화합물 2 | 3.6 | 24.2 |
실시예 2-2 | 화합물군 2 화합물 15 | 3.4 | 33.3 |
실시예 2-3 | 화합물군 2 화합물 20 | 3.5 | 34.6 |
실시예 2-4 | 화합물군 2 화합물 24 | 3.3 | 31.5 |
실시예 2-5 | 화합물군 2 화합물 35 | 3.0 | 30.0 |
실시예 2-6 | 화합물군 2 화합물 40 | 2.6 | 27.5 |
실시예 2-7 | 화합물군 2 화합물 75 | 2.3 | 24.3 |
실시예 2-8 | 화합물군 2 화합물 94 | 2.2 | 21.2 |
실시예 2-9 | 화합물군 2 화합물 102 | 2.4 | 23.2 |
실시예 2-10 | 화합물군 2 화합물 154 | 3.5 | 27.2 |
실시예 2-11 | 화합물군 2 화합물 169 | 4.0 | 33.2 |
실시예 2-12 | 화합물군 2 화합물 227 | 3.6 | 31.2 |
실시예 2-13 | 화합물군 2 화합물 280 | 3.4 | 29.6 |
실시예 2-14 | 화합물군 2 화합물 295 | 3.5 | 28.6 |
실시예 2-15 | 화합물군 2 화합물 299 | 2.7 | 29.3 |
실시예 2-16 | 화합물군 2 화합물 320 | 2.5 | 30.2 |
비교예 1 | 비교예 화합물 C1 | 0.8 | 5.3 |
비교예 2 | 비교예 화합물 C2 | 0.5 | 3.2 |
비교예 3 | 비교예 화합물 C3 | 1.5 | 6.08 |
Claims (33)
- 제1 전극, 상기 제1 전극과 마주하는 제2 전극, 및 상기 제1 전극과 상기 제2 전극 사이에 배치된 복수의 유기층들을 포함하는 발광 소자; 및상기 발광 소자 상에 배치되고 광 흡수제를 포함하는 봉지 부재; 를 포함하며,상기 광 흡수제는 두 개 이상의 질소 원자를 고리 형성 원자로 포함하는 6각 헤테로고리 및 상기 6각 헤테로고리에 치환되고 서로 상이한 제1 내지 제3 치환기들을 포함하고,상기 제1 치환기는 적어도 하나의 하이드록시기를 포함한 치환된 페닐기이고,상기 제2 치환기는 3개 이상의 고리가 축합된 축합환기인 표시 장치.
- 제 1항에 있어서,상기 봉지 부재는 적어도 하나의 유기막 및 적어도 하나의 무기막을 포함하고, 상기 적어도 하나의 유기막은 상기 광 흡수제를 포함하는 표시 장치.
- 제 2항에 있어서,상기 적어도 하나의 유기막과 상기 적어도 하나의 무기막은 교대로 적층되어 배치되고,상기 적어도 하나의 유기막은 제1 파장 영역의 광을 흡수하는 제1 유기막; 및상기 제1 파장 영역의 광과 상이한 제2 파장 영역의 광을 흡수하는 제2 유기막; 을 포함하는 표시 장치.
- 제 1항에 있어서,상기 봉지 부재는 상기 발광 소자를 커버하는 표시 장치.
- 제 1항에 있어서,상기 봉지 부재 상에 배치된 편광 부재를 더 포함하는 표시 장치.
- 제 1항에 있어서,상기 봉지 부재는 상기 제2 전극과 인접하여 배치된 제1 무기막;상기 제1 무기막 상에 배치된 제2 무기막; 및상기 제1 무기막 및 상기 제2 무기막 사이에 배치되고 상기 광 흡수제를포함한 유기막; 을 포함하고,상기 유기막은 405nm 파장에서 10% 이하의 투과율을 갖고, 430nm 파장에서 70% 이상의 투과율을 가지며, 450nm 파장에서 97% 이상의 투과율을 갖는 표시 장치.
- 제 1항에 있어서,상기 복수의 유기층들은 상기 제1 전극 상에 배치된 정공 수송 영역;상기 정공 수송 영역상에 배치된 발광층; 및상기 발광층 상에 배치된 전자 수송 영역; 을 포함하는 표시 장치.
- 제 1항에 있어서,상기 봉지 부재 상에 배치된 광차단층을 더 포함하는 표시 장치.
- 제 1항에 있어서,상기 6각 헤테로고리는 트리아진, 또는 피리미딘인 표시 장치.
- 제 1항에 있어서,상기 제2 치환기는 치환 또는 비치환된 안트라센기, 치환 또는 비치환된 파이렌기, 치환 또는 비치환된 크라이센기, 치환 또는 비치환된 디벤조퓨란 유도체, 치환 또는 비치환된 카바졸 유도체, 또는 치환 또는 비치환된 플루오렌 유도체이고,상기 치환 또는 비치환된 디벤조퓨란 유도체의 치환기, 상기 치환 또는 비치환된 카바졸 유도체의 치환기, 및 상기 치환 또는 비치환된 플루오렌 유도체의 치환기는 수소 원자, 탄소수 1 이상 20 이하의 알킬기, 탄소수 1 이상 20 이하의 알케닐기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기, 또는 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로아릴기이거나, 또는 이웃하는 기들이 서로 결합하여 고리를 형성하는 표시 장치.
- 제 1항에 있어서,상기 제3 치환기는 치환 또는 비치환된 탄소수 1 이상 20 이하의 알콕시기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴옥시기, 치환 또는 비치환된 탄소수 1 이상 20 이하의 알킬티오기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴티오기, 또는 치환 또는 비치환된 페닐기인 표시 장치.
- 제 1항에 있어서,상기 광 흡수제는 하기 화학식 1 또는 화학식 2로 표시되는 표시 장치:[화학식 1][화학식 2]상기 화학식 1 및 화학식 2에서,Ar은 고리 형성 탄소수 13 이상 60 이하의 치환 또는 비치환된 아릴기, 또는 고리 형성 탄소수 12 이상 60 이하의 치환 또는 비치환된 헤테로아릴기이고,R 2 내지 R 5는 각각 독립적으로, 수소 원자, 중수소 원자, 할로겐 원자, 시아노기, 치환 또는 비치환된 탄소수 1 이상 30 이하의 알킬기, 치환 또는 비치환된 탄소수 1 이상 20 이하의 알콕시기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴옥시기, 치환 또는 비치환된 탄소수 1 이상 30 이하의 알킬 아민기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴 아민기, 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로고리기, 또는 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기이며상기 화학식 1에서, Y 1 내지 Y 3 중 두 개는 N이고 나머지는 CH이며,R 1은 수소 원자, 치환 또는 비치환된 탄소수 1 이상 30 이하의 알킬기, 치환 또는 비치환된 탄소수 1 이상 20 이하의 알콕시기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴옥시기, 치환 또는 비치환된 탄소수 1 이상 20 이하의 알킬티오기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴티오기, 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로고리기, 또는 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기이고,상기 화학식 2에서, X는 O 또는 S이고,R 6은 치환 또는 비치환된 탄소수 1 이상 30 이하의 알킬기, 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로고리기, 또는 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기이다.
- 제 13항에 있어서,상기 Ar은 하기 Ar-a 내지 Ar-h 중 어느 하나로 표시되는 표시 장치:상기 Ar-e 내지 Ar-h에서 Z는 O, S, NR a, CR bR c이고,R a 내지 R c는 각각 독립적으로 수소 원자, 중수소 원자, 할로겐 원자, 탄소수 1 이상 20 이하의 알킬기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기, 또는 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로아릴기이고,상기 Ar-a 내지 Ar-h에서 R 11 내지 R 18은 각각 독립적으로, 수소 원자, 중수소 원자, 할로겐 원자, 탄소수 1 이상 20 이하의 알킬기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기, 또는 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로아릴기이며,m1 내지 m8은 각각 독립적으로 0 이상 4 이하의 정수이다.
- 제1 전극, 상기 제1 전극과 마주하는 제2 전극, 및 상기 제1 전극과 상기 제2 전극 사이에 배치된 복수의 유기층들을 포함하는 발광 소자; 및상기 발광 소자 상에 배치되고, 광 흡수제를 포함하는 유기막을 포함하는 봉지 부재; 를 포함하며,상기 유기막은 405nm의 파장에서 10% 이하의 투과율을 가지며, 430nm의 파장에서는 70% 이상의 투과율을 갖고, 450nm 이상의 파장에서는 97% 이상의 투과율을 가지며,상기 광 흡수제는 두 개 이상의 N원자를 고리 형성 원자로 포함하는 6각 헤테로고리 및 상기 6각 헤테로고리에 치환되고 서로 상이한 제1 내지 제3 치환기들을 포함하는 표시 장치.
- 제 19항에 있어서,상기 6각 헤테로고리는 트리아진 또는 피리미딘인 표시 장치.
- 제 19항에 있어서,상기 제1 치환기는 적어도 하나의 하이드록시기를 포함한 치환된 페닐기이고,상기 제2 치환기는 3개 이상의 고리가 축합된 축합환기이고,상기 제3 치환기는 치환 또는 비치환된 옥시기, 치환 또는 비치환된 티오기, 또는 치환 또는 비치환된 페닐기인 표시 장치.
- 제 19항에 있어서,상기 제2 치환기는 하기 Ar-a 내지 Ar-h 중 어느 하나로 표시되는 표시 장치:상기 Ar-e 내지 Ar-h에서 Z는 O, S, NR a, CR bR c이고,R a 내지 R c는 각각 독립적으로 수소 원자, 중수소 원자, 할로겐 원자, 탄소수 1 이상 20 이하의 알킬기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기, 또는 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로아릴기이고,상기 Ar-a 내지 Ar-h에서 R 11 내지 R 18은 각각 독립적으로, 수소 원자, 중수소 원자, 할로겐 원자, 탄소수 1 이상 20 이하의 알킬기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기, 또는 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로아릴기이며,m1 내지 m8은 각각 독립적으로 0 이상 4 이하의 정수이다.
- 하기 화학식 1 또는 화학식 2로 표시되는 광 흡수제:[화학식 1][화학식 2]상기 화학식 1 및 화학식 2에서,Ar은 고리 형성 탄소수 13 이상 60 이하의 치환 또는 비치환된 아릴기, 또는 고리 형성 탄소수 12 이상 60 이하의 치환 또는 비치환된 헤테로아릴기이고,R 2 내지 R 5는 각각 독립적으로, 수소 원자, 중수소 원자, 할로겐 원자, 시아노기, 치환 또는 비치환된 탄소수 1 이상 30 이하의 알킬기, 치환 또는 비치환된 탄소수 1 이상 20 이하의 알콕시기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴옥시기, 치환 또는 비치환된 탄소수 1 이상 30 이하의 알킬 아민기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴 아민기, 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로고리기, 또는 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기이며상기 화학식 1에서, Y 1 내지 Y 3 중 두 개는 N이고 나머지는 CH이며,R 1은 수소 원자, 치환 또는 비치환된 탄소수 1 이상 30 이하의 알킬기, 치환 또는 비치환된 탄소수 1 이상 20 이하의 알콕시기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴옥시기, 치환 또는 비치환된 탄소수 1 이상 20 이하의 알킬티오기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴티오기, 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로고리기, 또는 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기이고,상기 화학식 2에서, X는 O 또는 S이고,R 6은 치환 또는 비치환된 탄소수 1 이상 30 이하의 알킬기, 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로고리기, 또는 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기이다.
- 제 26항에 있어서,상기 Ar은 하기 Ar-a 내지 Ar-h 중 어느 하나로 표시되는 광 흡수제:상기 Ar-e 내지 Ar-h에서 Z는 O, S, NR a, CR bR c이고,R a 내지 R c는 각각 독립적으로 수소 원자, 중수소 원자, 할로겐 원자, 탄소수 1 이상 20 이하의 알킬기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기, 또는 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로아릴기이고,상기 Ar-a 내지 Ar-h에서 R 11 내지 R 18은 각각 독립적으로, 수소 원자, 중수소 원자, 할로겐 원자, 탄소수 1 이상 20 이하의 알킬기, 치환 또는 비치환된 고리 형성 탄소수 6 이상 30 이하의 아릴기, 또는 치환 또는 비치환된 고리 형성 탄소수 2 이상 30 이하의 헤테로아릴기이며,m1 내지 m8은 각각 독립적으로 0 이상 4 이하의 정수이다.
- 제 26항에 있어서,상기 Ar은 비치환된 안트라센, 비치환된 페난트렌, 비치환된 파이렌, 또는 비치환된 크라이센인 광 흡수제.
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JP2022504116A (ja) | 2022-01-13 |
JP2024045108A (ja) | 2024-04-02 |
EP3863076A4 (en) | 2022-06-08 |
EP3863076A1 (en) | 2021-08-11 |
US20220158099A1 (en) | 2022-05-19 |
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