TW201635023A - Photosensitive resin composition, color conversion panel using the same and display device - Google Patents

Abstract

Provided is a photosensitive resin composition including: a nanophosphor, a photopolymerization initiator, a photopolymerization compound, an antioxidant, and a solvent, in which the antioxidant includes one kind or more selected from phenol-based, phosphorus-based, and sulfur-based compounds.

Description

Photosensitive resin composition, color conversion panel and display device using the same

Cross-references to related applications

The priority and benefit of Korean Patent Application No. 10-2015-0003678 and No. 10-2015-0167387 proposed by the Korea Intellectual Property Office on January 09, 2015 and November 27, 2015, respectively. The entire contents of which are incorporated herein by reference.

The present invention relates to a photosensitive resin composition, a color conversion panel and a display device using the same, and more particularly to a photosensitive resin composition having excellent light efficiency and color reproducibility. Use its color conversion panel and display device.

The color conversion layer of the color filter or the color conversion panel of the liquid crystal display device is manufactured by coating a fine layer colored in two or more colors on a transparent substrate.

The colored photosensitive resin composition for producing a color filter or a color conversion layer is usually formed of an adhesive resin, a photopolymerizable monomer, a photopolymerization initiator, a pigment, a solvent, other additives, and the like.

Further, since the pigment of the colored photosensitive resin composition has characteristics lower than the desired brightness, efforts are made to improve the luminance characteristics of quantum dots or phosphors using constituent components other than the pigment.

However, in recent years, color filters or color conversion layers having improved brightness, heat resistance, and the like are desired based on high quality specifications. Light efficiency or color reproducibility is reduced by the heat generated during the patterning process, so this reduction needs to be addressed.

The above information disclosed in this Background section is only used to increase the understanding of the background of the invention, and thus may include information that does not constitute a prior art that is conventional to those of ordinary skill in the art.

The present invention has been made in an effort to provide a photosensitive resin composition having excellent light efficiency and color reproducibility, a color conversion panel using the same, and a display device.

An exemplary embodiment of the present invention provides a photosensitive resin composition comprising: a nanophosphor, a photopolymerization initiator, a photopolymerizable compound, an antioxidant, and a solvent, wherein the antioxidant comprises a phenol selected from the group consisting of phenols One or more of a phenol-based, phosphorous-based, or sulfur-based compound.

The nano-fluorescent powder may include at least one of a quantum dot and an inorganic phosphor.

The phenolic antioxidant may comprise 2,6-di-tert-butyl-p-cresol, 2,6-diphenyl-4-octadecane oxide 2,6-diphenyl-4-octadesiloxyphenol, stearyl (3,5-di-tert-butyl-4-hydroxyphenyl)propionate (stearyl(3,5-di-tert-butyl-4) -hydroxyphenyl) propionate), distearyl (3,5-di-tert-butyl-4-hydroxybenzyl) phosphonate, thirteen 3,5-di-tert-butyl-4-hydroxybenzyl thioacetate, thiodivinyl bis [(3,5-) Thiodiethylenebis[(3,5-di-tert-butyl-4-hydroxyphenyl) propionate], 4,4'-thiobis(6-tert-butyl) (4,4'-thiobis(6-tert-butyl-m-cresol), 2-octylthio-4,6-di(3,5-di-tert-butyl-4-hydroxyl) Phenyl)-s-trinitrogen (2-octylthio-4,6-di(3,5-di-tert-butyl-4-hydroxyphenoxy)-s-triazine), 2,2'-methylene Bis(4-methyl-6-tert-butylphenol) (2,2'-methylenebis(4-methyl-6-tert-butylphenol), bis[3,3-bis(4-hydroxy-3-tert-butyl) Phenyl)butyric acid] Diethyl ester (bis[3,3-bis(4-hydroxy-3-tert-butylphenyl)butyric acid]glycolester), 4,4'-butylene bis(2,6-di-tert-butylphenol) (4 , 4'-butylidenebis (2,6-di-tert-butylphenol), 4,4'-butylene bis(6-tert-butyl-3-methylphenol) (4,4'-butylidenebis (6-tert -butyl-3-methylphenol)), 2,2'-ethylenebis(4,6-di-tert-butylphenol), 2,2'-ethylidenebis(4,6-di-tert-butylphenol), 1 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane (1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane , bis[2-tert-butyl-4-methyl-6-(2-hydroxy-3-tert-butyl-5-methylbenzyl)phenyl]terephthalate (bis[2-tert) -butyl-4-methyl-6-(2-hydroxy-3-tert-butyl-5-methylbenzyl)phenyl] terephthalate), 1,3,5-tris(2,6-dimethyl-3-hydroxy-4 -1,3,5-tris(2,6-dimethyl-3-hydroxy-4-tert-butylbenzyl)isocyanurate, 1,3,5-three (3, 5-, 5-, 4-tris(3,5-di-tert-butyl-4-hydroxybenzyl isocyanurate), 1,3,5- Tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene (1,3,5-tris(3,5-di-tert-butyl-4) -hydroxybenzyl)-2,4,6-trimethylbenzene), 1,3,5-tris[(3,5-di-tert-butyl-4-hydroxyphenyl)propenyloxyethyl]isocyanurate (1,3,5-tris[(3,5-di-tert-butyl-4-hydroxyphenyl)propionyloxyethyl] isocyanurate), tetra[methylene-3-(3',5'-di-tert-butyl-4 '-Hydroxyphenyl)propionate]methane (tetrakis[methylene-3-(3',5'-di-tert-butyl-4'-hydroxyphenyl) propionate]methane), 2-tert-butyl-4-methyl 2--6-(2-propenyloxy-3-tert-butyl-5-methylbenzyl)phenol (2-tert-butyl-4-methyl-6-(2-acryloyloxy-3-tert-butyl-5) -methylbenzyl)phenol), 3,9-bis[2-(3-tert-butyl-4-hydroxy-5-hydroxyhydrocinnamyloxy)-1,1-dimethylethyl]-2,4, 8,10-tetraoxaspiro[5.5]undecane (3,9-bis[2-(3-tert-butyl-4-hydroxy-5-methylhydrocinnamoyloxy)-1,1-dimethylethyl]-2,4, 8,10-tetraoxaspiro [5.5]undecane), triethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate] (triethyleneglycolbis[β-(3-tert -butyl-4-hydroxy-5-methylphenyl) propionate]) and one or more of tocophenols.

Phosphorus antioxidants may include triphenyl phosphite, tris(2,4-di-tert-butylphenyl) phosphite, tris(2,5-di-tert-butylphenyl) phosphite (tris(2,5-di-tert-butylphenyl) phosphite), tris(nonylphenyl) phosphite, tris(dinonylphenyl) phosphite Phosphine), tris(mono,di-mixed nonylphenyl) phosphite, diphenylacid phosphite, 2,2'-methylene double ( 4,6'-methylenebis(4,6-di-tert-butylphenyl)octyl phosphite, diphenyldecyl phosphite , diphenyloctyl phosphite, di(nonylphenyl)pentaerythritol diphosphite, phenyldiisodecyl phosphite ), tributyl phosphite, tris(2-ethylhexyl) phosphite, tridecyl phosphite, March Trilauryl phosphite, dibutyl acid phosphite, dilauryl acid phosphite, trilauryl trithiophosphite, bis (neutral) Alcohol) • 1,4-cyclohexane dimethyl bisphosphite (bis(neopentylglycol)•1,4-cyclohexanedimethyl diphosphite), bis(2,4-di-tert-butylphenyl)nepentaerythritol Bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite, bis(2,5-di-tert-butylphenyl)neopentitol diphosphite (bis(2,5-di-tert) -butylphenyl)pentaerythritol diphosphite), bis(2,6-di-tert-butyl-4-methylphenyl) Pentaerythritol diphosphite), bis(2,4-dicumylphenyl)pentaerythritol diphosphite, distearyl pentyl neopentyl alcohol Disterarylpentaerythritol diphosphite, tetra (C12-15 mixed alkyl)-4,4'-isopropylidene diphenyl phosphite (tetra(C12-15 mixed-alkyl)-4,4'-isopropylidenediphenyl phosphit e), bis[2,2'-methylenebis(4,6-dipentylphenyl)] • isopropylidene diphenyl phosphite (bis[2,2'-methylenebis(4,6) -diamylphenyl)] • isopropylidenediphenyl phosphite), tetra-tridecyl 4,4'-butylenebis(2-tert-butyl-5-methylphenol) diphosphite (tetratridecyl·4,4'-butylidenebis (2 -tert-butyl-5-methylphenol) diphosphite), hexakis(tridecyl)•1,1,3-tris(2-methyl-5-tert-butyl-4-hydroxyphenyl)butane•triphosphite (hexa(tridecyl)·1,1,3-tris(2-methyl-5-tert-butyl-4-hydroxyphenyl)butane •triphosphite), tetrakis(2,4-di-tert-butylphenyl)-linked phenyl Tetrakis (2,4-di-tert-butylphenyl)biphenylene diphosphonite, tris(2-[(2,4,7,9-tetra-tert-butyldibenzo[d,f][1, 3,2]dioxaphospholene-6-yl)oxy]ethyl)amine (tris(2-[(2,4,7,9-tetrakis-tert-butyldibenzo[d,f][ 1,3,2]dioxaphosphepin-6-yl)oxy]ethyl)amine), 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (9,10-dihydro-9- Oxa-10-phosphaphenanthrene-10-oxide), tris(2-[(2,4,8,10-tetra-tert-butyl-dibenzo[d,f][1,3,2]dioxaphosphorane Cycloheptatriene-6-yl)oxy] Amines (2-[(2,4,8,10-tetrakis-tert-butyldibenzo[d,f][1,3,2]dioxaphosphepin-6-yl)oxy]ethyl)amine), 2- (1,1-dimethylethyl)-6-methyl-4-[3-[[2,4,8,10-tetrakis(1,1-dimethylethyl)dibenzo[d, f][1,3,2]dioxaphosphinotriene-6-yl)oxy]propyl]phenol 2-butyl-2-ethylpropanediol (2-(1,1-dimethylethyl)- 6-methyl-4-[3-[[2,4,8,10-tetrakis(1,1-dimethylethyl)dibenzo[d,f][1,3,2]dioxaphosphepin-6-yl]oxy]propyl] Phenol-2-butyl-2-ethylpropanediol) and at least one of 2,4,6-tri-tert-butylphenol monophosphate.

The sulfur-based antioxidant may include at least one of dialkylthiodipropionates and β-alkylmercaptopropionic acid esters.

The antioxidant may be contained in an amount of from 1 to 5 wt% based on the total weight of the solid of the color conversion layer.

The quantum dot may comprise a compound selected from the group consisting of a Group II-VI compound, a III-V compound, a III-VI compound, a IV-VI compound, a II-III-V element, a II-III-VI compound, a Group IV element, and One or more of the Group IV compounds, and the quantum dots may have a core-shell structure comprising a core and a shell covering the core.

The core may include CdSe, CdS, ZnS, ZnSe, CdTe, CdSeTe, CdZnS, PbSe, AgInZnS, ZnTe, CdSeS, PbS, PbTe, HgS, HgSe, HgTe, GaN, GaP, GaAs, InP, InZnP, InGaP, InGaN, InAs And at least one of ZnO.

The shell may include at least one of CdSe, ZnSe, ZnS, ZnTe, CdTe, PbS, SrSe, CdO, CdS, ZnO, InP, InS, GaP, GaN, GaO, InZnP, InGaP, InGaN, InZnSCdSe, and HgSe.

The inorganic phosphor may comprise one or more selected from the group consisting of garnets, citrates, sulfides, oxides, oxynitrides, nitrides, and aluminates.

The inorganic phosphor may comprise Y3Al5O12:Ce3+ (YAG:Ce), Tb3Al5O12:Ce3+ (TAG:Ce), (Sr,Ba,Ca)2SiO4:Eu2+, (Sr,Ba,Ca,Mg,Zn)2Si(OD)4 :Eu2+ D=F, Cl, S, N, Br, Ba2MgSi2O7: Eu2+, Ba2SiO4: Eu2+, Ca3(Sc, Mg)2Si3O12: Ce3+, (Ca, Sr)S: Eu2+, (Sr, Ca) Ga2S4: Eu2+, SrSi2O2N2: Eu2+, SiAlON: Ce3+, β-SiAlON: Eu2+, Ca-α-SiAlON: Eu2+, Ba3Si6O12N2: Eu2+, CaAlSiN3: Eu2+, (Sr, Ca) AlSiN3: Eu2+, Sr2Si5N8: Eu2+, (Sr, Ba) Al2O4: At least one of Eu2+, (Mg, Sr)Al2O4: Eu2+, and BaMg2Al16O27: Eu2+.

The photosensitive resin composition may further contain a dispersing agent.

The photosensitive resin composition may further contain a light scatterer.

The light scatter may include at least one of TiO 2 , Al 2 O 3 , and SiO 2 .

Another exemplary embodiment of the present disclosure provides a display device including a photosensitive resin composition, comprising: a lower substrate; a thin film transistor provided on the lower substrate; a pixel electrode connected to the thin film transistor; and a lower substrate Facing the upper substrate; and providing a color filter between the lower substrate and the upper substrate, wherein the color filter comprises nano fluorescent powder and an antioxidant, and the antioxidant comprises a phenol, a phosphorus, and One of the sulfur compounds.

Another exemplary embodiment of the present invention provides a color conversion panel including a photosensitive resin composition, comprising: a first substrate; a plurality of color conversion layers and a transmission layer provided on the first substrate; and a phase provided a light blocking member between adjacent color conversion layers and between one of the plurality of color conversion layers and the transmission layer, wherein the color conversion layer comprises nano fluorescent powder and an antioxidant, and the antioxidant comprises a phenol selected from the group consisting of One of phosphorus and sulfur compounds.

Another exemplary embodiment of the present invention provides a display device including a photosensitive resin composition, comprising: a display panel; and a color conversion panel provided on the display panel, wherein the color conversion panel includes: a first substrate; a plurality of color conversion layers and transmissive layers on one side of the first substrate and facing the display panel; and provided between each of the plurality of color conversion layers and between the plurality of color conversion layers And a light blocking member between the transmission layer and the transmission layer, wherein the color conversion layer comprises nano fluorescent powder and an antioxidant, and the antioxidant comprises one selected from the group consisting of phenols, phosphorus and sulfur compounds.

The display panel may include a lower substrate, a thin film transistor provided on the lower substrate, and a pixel electrode connected to the thin film transistor.

The display device may further include a substrate facing the lower substrate at a distance therefrom and a liquid crystal layer provided between the lower substrate and the upper substrate.

The display device may further include a top layer facing the pixel electrode and a liquid crystal layer in the plurality of microcavities provided between the pixel electrode and the top layer.

The display device may further include a device light-emitting element provided on the pixel electrode and a common electrode provided on the organic light-emitting element.

According to an exemplary embodiment of the present invention, by adding an antioxidant to a photosensitive resin composition containing nano fluorescent powder, it is possible to avoid quenching caused by deterioration of nano fluorescent powder during the progress of the process. Phenomenon, and thus the display device has excellent light efficiency and color reproducibility.

In the following, the present disclosure will be more fully described with reference to the accompanying drawings in which FIG. It will be appreciated by those skilled in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the disclosure.

In the drawings, the thickness of layers, films, panels, regions, and the like are exaggerated for clarity. Like reference numerals in the specification refer to like elements. It will be understood that when an element such as a layer, a film, a region or a substrate is referred to as being "on" another element, it may be directly on the other element or the intermediate element may also be present. Conversely, when an element is referred to as "directly on" another element, it does not have an intermediate element. Further, it will be understood that throughout the specification, when an element is provided on something "on", the word "up" may be relative to the direction of gravity or opposite to the direction of gravity.

The photosensitive resin composition according to the exemplary embodiment includes a nano fluorescent powder, a photopolymerization initiator, a photopolymerizable compound, an antioxidant, and a solvent.

First, the nano fluorite powder according to the exemplary embodiment may include at least one of a quantum dot or an inorganic phosphor.

The quantum dots contained in the nano-fluorescent powder according to an exemplary embodiment may include a II-VI compound, a III-V compound, an IV-VI compound, a group IV element, a group IV compound, and a combination thereof.

The II-VI compound may be selected from the group consisting of a binary compound, a ternary compound and a quaternary compound, and the binary compound is selected from CdO, CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, a group consisting of HgTe, MgSe, MgS, SrSe, and a mixture thereof; the ternary compound is selected from CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS, CdHgSe, a group consisting of CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe, MgZnS, and a mixture thereof; and a quaternary compound selected from the group consisting of HgZnTeS, CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, HgZnSTe, and mixtures thereof Group of.

The III-V compound may be selected from the group consisting of a binary compound, a ternary compound, and a quaternary compound selected from the group consisting of GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, a group of InAs, InSb, and a mixture thereof; ternary compounds are selected from free of GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InNP, InNAs, InNSb, InPAs, InPSb, InGaP, and InGaN And a group consisting of the mixture thereof; and a group of quaternary compounds selected from GaAlNAs, GaAlNSb, GaAlPAs, GaAlNP, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb, and mixtures thereof .

The IV-VI compound may be selected from the group consisting of a binary compound, a ternary compound, and a quaternary compound, and the binary compound is selected from the group consisting of SnS, SnSe, SnTe, PbS, PbSe, PbTe, and a mixture thereof. The ternary compound is selected from the group consisting of SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe, and a mixture thereof; and the quaternary compound is selected from the group consisting of SnPbSSe, SnPbSeTe, SnPbSTe, and a mixture thereof. group. Group IV elements can 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.

Further, it may comprise a III-VI compound, a II-III-V compound or a II-III-VI compound and combinations thereof.

The III-VI compound may include a compound of GaO or the like, the II-III-V compound may include a compound of InZnP or the like, and the II-III-VI compound may include a compound of InZnSCdSE or the like, but is not limited thereto.

In this case, the binary compound, the ternary compound or the quaternary compound may exist in a state in which the particles are present at a uniform concentration, or may be in a state in which the same particles are divided into partially different concentration distributions. Further, the nano-fluorescent powder may have a core/shell structure in which one quantum dot surrounds another quantum dot. The interface between the core and the shell may have a concentration gradient such that the concentration of the element present in the shell gradually decreases as it approaches its center.

For example, a quantum dot can have a core/shell structure comprising a core and a shell covering the core.

The core may comprise a host selected from the group consisting of CdSe, CdS, ZnS, ZnSe, CdTe, CdSeTe, CdZnS, PbSe, AgInZnS, ZnTe, CdSeS, PbS, PbTe, HgS, HgSe, HgTe, GaN, GaP, GaAs, InP, InZnP, InGaP, InGaN One or more materials of the group consisting of InAs and ZnO, but are not limited thereto. The shell may comprise a group selected from the group consisting of CdSe, ZnSe, ZnS, ZnTe, CdTe, PbS, SrSe, CdO, CdS, ZnO, InP, InS, GaP, GaN, GaO, InZnP, InGaP, InGaN, InZnSCdSe, and HgSe. One or more materials, but are not limited thereto.

The core of the core/shell quantum dots may have an average particle diameter of 2 nm to 5 nm. At the same time, the shell can have an average thickness of 3 nm to 5 nm. Further, the quantum dots may have an average particle diameter of 5 nm to 10 nm. When the core, the shell, and the quantum dot satisfy the average particle diameter or the average thickness in the above range, the behavior as a quantum dot can of course be expressed, and excellent dispersibility can be maintained in the composition for forming a pattern. In the above range, by changing the particle diameter of the core, the average thickness of the shell, and the selection of the average particle diameter of the quantum dots, the luminescent color of the quantum dots and/or the semiconductor characteristics of the quantum dots and the like may have various changes.

Further, the form of the quantum dot is a form generally used in the art, and is not particularly limited, but more specifically, it is preferably used such as a sphere, a cone, a multi-arm-shaped or a cube. Nanoparticles, nanotubes, nanowires, nanofibers, and nanoplate-shaped particles.

The photosensitive resin composition according to the present exemplary embodiment contains lambertian quantum dots, and when applied to a display device, the viewing angle of the display device can be improved.

The inorganic phosphor contained in the nano-fluorescent powder according to an exemplary embodiment may include one or more of garnet, citrate, sulfide, oxide, nitrogen oxide, nitride, and aluminate.

The inorganic phosphor may comprise selected from the group consisting of Y3Al5O12:Ce3+ (YAG:Ce), Tb3Al5O12:Ce3+ (TAG:Ce), (Sr,Ba,Ca)2SiO4:Eu2+, (Sr,Ba,Ca,Mg,Zn)2Si (OD 4: Eu2+ D=F, Cl, S, N, Br, Ba2MgSi2O7: Eu2+, Ba2SiO4: Eu2+, Ca3(Sc, Mg)2Si3O12: Ce3+, (Ca, Sr)S: Eu2+, (Sr, Ca) Ga2S4: Eu2+, SrSi2O2N2: Eu2+, SiAlON: Ce3+, β-SiAlON: Eu2+, Ca-α-SiAlON: Eu2+, Ba3Si6O12N2: Eu2+, CaAlSiN3: Eu2+, (Sr, Ca) AlSiN3: Eu2+, Sr2Si5N8: Eu2+, (Sr, Ba) Al2O4: one or more materials of the group consisting of Eu2+, (Mg, Sr)Al2O4: Eu2+, and BaMg2Al16O27: Eu2+.

The nano-fluorescent powder containing a quantum dot or an inorganic phosphor as described above may be directly added as it is to the photosensitive resin composition or a nano-fluorescent powder dispersion solution which may contain a dispersing agent or the like.

Here, the dispersant is a material which is added to a nano-fluorescent powder in a dispersion solution to form a stable suspension.

In this case, as the dispersing agent which can be contained in the nano-fluorescent powder dispersion solution, a nonionic dispersing agent, an ionic dispersing agent or a cationic dispersing agent can be optionally used, and for example, it can be used alone or appropriately Polyalkylene glycol and its esters used in combination; polyoxyalkylene; polyalcohol ester alkylene oxide addition; Alkahol alkylene oxide addition or the like.

Further, as a solvent which can be contained in the nano-fluorescent powder dispersion solution, ethyleneglycol acetate, ethylcellosolve, propyleneglycolmethylether acetate can be used. ), ethyl lactate, polyethyleneglycol, cyclohexanone, propylene glycol methyl ether (propyleneglycolmethylether).

First, the photopolymerization initiator contained in the photosensitive resin composition according to the exemplary embodiment is a crosslinking and curing reaction between the photosensitive functional group and the photosensitive material which are initially used in the photosensitive resin composition. The material may be selected from the group consisting of acetophenone-based, benzoin-based, benzophenone-based, triazine-based, A photopolymerization initiator of one or more of oxime-based and thioxanthone-based.

An example of a photopolymerization initiator of acetophenone may include 4-phenoxy dichloroacetophenone, 4-tert-butyl dichloroacetophenone, 4-tert-butyl trichloroacetophenone, 2,2-diethoxyacetophenone, 2-hydroxy-2-methyl-1-benzene 2-hydroxy-2-methyl-1-phenyl-propane-1-one, 1-(4-isopropylphenyl)-2-hydroxy-2-methyl-propyl- 1-keto(1-isopropylphenyl)-2-hydroxy-2-methyl-propane-1-one), 1-(4-dodecylphenyl)-2-hydroxy-2-methylpropane- 1-keto(1-(4-dodecylphenyl)-2-hydroxy-2-methylpropane-1-one), 4-(2-hydroxyethoxy)phenyl(2-hydroxy-2-propyl)one (4 - (2-hydroxyethoxy)-phenyl-(2-hydroxy-2-propyl)ketone), 1-hydroxycyclohexylphenylketone, 2-methyl-1-[4-(methylthio) Phenyl] 2-[1-(methylthio)phenyl]-2-morpholino-propane-1-one), etc., but is not limited thereto.

Can use benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, benzyl dimethyl condensate A ketone (benzyl dimethyl ketal) or the like is used as a photopolymerization initiator of benzoin, but a photopolymerization initiator of benzoin is not limited thereto.

An example of a photopolymerization initiator of benzophenone may include benzophenone, benzoyl benzoic acid, benzoyl benzoic acid methyl ester, 4 -4-phenylbenzophenone, hydroxybenzophenone, 4-benzoyl-4'-methyldiphenyl sulphide And 3,3'-dimethyl-4-methoxybenzophenone, etc., but is not limited thereto.

Examples of the photopolymerization initiator of the trinitrogen [mouth] type may include 2,4,6-trichloro-s-trinitrogen [2,4,6-trichloro-s-triazine], 2- Phenyl 4,6-bis(trichloromethyl)-s-trinitrogen [2-phenyl 4,6-bis(trichloromethyl)-s-triazine), 2-(3',4'-di Methoxystyryl-4,6-bis(trichloromethyl)-s-trinitro[[], (2-(3',4'-dimethoxystyryl)-4,6-bis(trichloromethyl)- S-triazine), 2-(4'-methoxynaphthyl)-4,6-bis(trichloromethyl)-s-trinitro[[], (2-(4'-methoxynaphthyl)-4, 6-bis(trichloromethyl)-s-triazine), 2-(p-methoxyphenyl)-4,6-bis(trichloromethyl)-s-triazo [well] (2-(p-methoxyphenyl) -4,6-bis(trichloromethyl)-s-triazine), 2-(p-tolyl)-4,6-bis(trichloromethyl)-s-trinitrogen [mouth] (2-(p- Tolyl)-4,6-bis(trichloromethyl)-s-triazine), 2-biphenyl 4,6-bis(trichloromethyl)-s-trinitrogen [mouth] (2-biphenyl 4,6-bis (trichloromethyl)-s-triazine), bis(trichloromethyl)-6-styryl-s-trinitrogen [bis(trichloromethyl)-6-styryl-s-triazine), 2-(naphthalene) -1-yl)-4,6-bis(trichloromethyl)-s-trinitrogen [mouth] (2-(naphtho-1-yl)-4,6-bis(trichloromethyl)-st Riazine), 2-(4-methoxynaphthalen-1-yl)-4,6-bis(trichloromethyl)-s-trinitrogen [mouth] (2-(4-methoxynaphtho-1-yl) -4,6-bis(trichloromethyl)-s-triazine), 2-4-bis(trichloromethyl)-6-yellowyl-s-trinitrogen [mouth] (2-4-bis(trichloromethyl)- 6-piperonyl-s-triazine), 2-4-bis(trichloromethyl)-6-(4-methoxystyryl)-s-triazo [well] (2-4-bis(trichloromethyl) )-6-(4-methoxystyryl)-s-triazine).

O-acyloxime-based compound, 2-(0-benzylidene fluorenyl)-1-[4-(phenylthio)phenyl]-1,2-octyl can be used. 2-(0-benzoyloxime-1-(4-(phenylthio)phenyl]-1,2-octanedione), 1-(0-ethylindenyl)-1-[9-ethyl-6- (2-methylbenzimidyl)-9H-carbazol-3-yl]ethanone (1-(0-acetyloxime)-1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazole- 3-yl]ethanone), O-ethoxycarbonyl-α oxyamino-1-phenylpropane-1-one, etc. as anthracene Photopolymerization initiator. Specific examples of the O-mercaptoquinone compound may include 1,2-octanedione, 2-dimethylamine-2-(4-methylbenzyl)-1-(4-[ 2-dimethylamino-2-(4-methylbenzyl)-1-(4-morpholine-4-yl-phenyl)-butane-1-one , 1-(4-phenylsulfophenyl)-but-1,2-dione 2肟-O-benzoate (1-(4-phenylsulfanylphenyl)-butane-1,2-dione 2-oxime -O-benzoate), 1-(4-phenylsulfophenyl)-octane-1,2-dione 2肟-O-benzoate (1-(4-phenylsulfanylphenyl)-octane-1,2- Dione 2-oxime-O-benzoate), 1-(4-phenylsulfanylphenyl)-octane-1-one oxime-(1-(4-phenylsulfanylphenyl)-octane-1-one oxime- O-acetate), 1-(4-phenylsulfanylphenyl-butane-1-one oxime-O-acetate), etc. .

Examples of the photopolymerization initiator of the thioxanthone may include thioxanthone, 2-chlorothioxanthone, 2-methylthioxanthone, and isopropyl group. Isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-diisopropylthioxanthone, and the like.

The content of the photopolymer initiator is not particularly limited, and may be selected in an appropriate range in consideration of the initial performance of the photopolymerization initiator, the size of the photosensitive pattern to be formed, and the like.

The solvent contained in the photosensitive resin composition according to the exemplary embodiment is a general organic solvent for forming a content dot pattern, and may be, for example, DMF, 4-hydroxy-4-methyl-2-pentanone (4) -hydroxy-4-methyl-2-pentanone), ethylene glycol monoethyl ether, 2-methoxyethanol, chloroform, chlorobenzene, toluene One to more, but not limited to, toluene, tetrahydrofuran, dichloromethane, hexane, heptane, octane, nonane, and decane this.

Next, the photopolymerizable compound contained in the photosensitive resin composition according to the exemplary embodiment may participate in the crosslinking and curing reaction together with the photosensitive compound or the photosensitive functional group bonded to the surface of the nano-fluorescent powder during exposure. Thus, the photopolymerizable compound can increase the resolution of the photosensitive resin pattern and the durability of the cured material.

As the photopolymerizable compound, two or more monofunctional or polyfunctional esters of (meth)acrylic acid having at least one ethylenically unsaturated double bond may be used singly or in combination.

The photopolymerizable compound may have an ethylenically unsaturated double bond to initiate sufficient polymerization during exposure of the pattern forming process, and thus form a pattern having excellent heat resistance, light resistance, and chemical resistance.

Specific examples of the photopolymerizable compound may include ethylene glycol di(metha)acrylate, diethylene glycol di(meth)acrylate, and three Triethylene glycol di(metha)acrylate, propylene glycol di(metha)acrylate, neopentyl glycol di(meth)acrylate ( Neopentyl glycol di(metha)acrylate), 1,4-butanediol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate (1,6-hexanediol di(metha)acrylate), bisphenol A di(metha)acrylate, pentaerythritol di(meth) acrylate (pentaerythritol di(metha) Acrylate), pentaerythritol tri(metha)acrylate, pentaerythritol tetra(meth)acrylate, pentaerythritol six (meth) Pentaerythritol hexa (metha) acrylate, dipentaerythritol di (metha) acrylate, dixin Dipentaerythritol tri(metha)acrylate, dipentaerythritol penta(methaacrylate), dipentaerythritol hexa(methyl) Dipentaerythritol hexa (metha) acrylate, bisphenol A epoxy (meth) acrylate, ethylene glycol monomethylether (ethylene glycol monomethylether (ethylene glycol monomethylether) Metha)acrylate), trimethylol propane tri(metha)acrylate, tris(meth)acryloyloxyethyl phosphate, phenolic epoxy (meth) acrylate (novolac epoxy (metha) acrylate).

The photopolymerizable compound can be treated with an acid anhydride to provide more excellent color development properties.

Further, the photopolymer may be an acrylate compound or a polyfunctional polyalkylene oxide containing one or more polyfunctional groups of an acryl group and a vinyl group. Or a polysiloxane-based polymer.

The photopolymerizable compound may comprise urethane acrylate, allyloxylated cyclohexyl diacrylate, bis(acryloxyethyl)hydroxyl isocyanurate ), bis(acryloxyneopentylglycol) adipate, bisphenol A diacrylate, bisphenol A dimethacrylate, 1,4-butanediol diacrylate, 1,4-butanediol dimethacrylate, 1,3-butanediol diacrylate (1,3-butyleneglycol diacrylate), 1,3-butyleneglycol dimethacrylate, dicyclopentanyl diacrylate, diethylene glycol diacrylate (diethyleneglycol diacrylate), diethyleneglycol dimethacrylate, dipentaerythritol hexaacrylate, dipentaerythritol mono acrylate Droxy pentacrylate), ditrimethylolpropane tetraacrylate, ethyleneglycol dimethacrylate, glycerol methacrylate, 1,6-hexanediol 1,6-hexanediol diacrylate, neopentylglycol dimethacrylate, neopentyllglycol hydroxypivalate diacrylate, neopentyl alcohol triacrylate (pentaerythritol triacrylate), pentaerythritol tetraacrylate, phosphoric acid dimethacrylate, polyetyleneglycol diacrylate, polypropylene glycol diacrylate (polypropyleneglycol diacrylate) , tetraethyleneglycol diacrylate, tetrabromobisphenol A diacrylate, triethyleneglycol divinylether, 1,3-diglycerol diacrylate Triglycerol diacrylate, trimethylol Trimethylolpropane triacrylate, tripropyleneglycol diacrylate, tris(acryloxyethyl)ococyanurate, phosphoric acid triacrylate, Phosphoric acid diacrylate, acrylic acid propargyl ester, polydimethylsiloxane having a vinyl group at its terminal (polydimethylsiloxane at the end of ethylene), a diphenylsiloxane-dimethylsiloxane copolymer having a vinyl group at the end (diphenyl siloxane-dimethyl siloxane copolymer of ethylene terminal), and an end thereof Polyphenylmethylsiloxane having a vinyl group (polyphenylmethyloxane at the end of ethylene), trifluoromethyloxirane-dimethyloxirane copolymer having a vinyl group at its terminal Trifluoromethylsiloxane-dimethylsiloxane copolymer (ethylene trifluoromethyl decane-dimethyl siloxane copolymer at the end), diethyl hydrazine having a vinyl group at its end Diethylsiloxane-dimethylsiloxane copolymer (ethylene oxime-dimethyl methoxy olefin copolymer at the end of ethylene), vinylmethyl siloxane, and its end Polydimethyl siloxane having monomethacryloxypropyl group (polydimethyl siloxane at the end of monomethacryloxypropyl group) having a single ethylene at its end a polydimethyl methoxy oxane (monovinyl terminated polydimethyl siloxane), or a polyoxyl group having a monoallyl group or a monotrimethylsiloxy group at its end Polyethylene oxide (monoallyl or monotrimethyldecyl terminated polyethylene oxide).

The content of the photopolymerizable compound is not particularly limited, and may be appropriately selected in consideration of photocuring characteristics (curing speed, cured film state, etc.), the number of bonding of photosensitive functional groups on the surface of the nano-fluorescent powder, and the like.

The photopolymerizable compound may further comprise a cyanine-based material, a merocyanine-based material, an oxonol-based material, or a phthalocyanine in order to form an accurate pattern. -based materials, azo-based materials, fluorene-based materials, thiophene-based materials, diphenylethene-based materials, and brown One or more materials of the phenoxazine-based material, but are not limited thereto.

The photosensitive resin composition according to an exemplary embodiment of the present invention further contains an antioxidant.

One or two or more selected from the group consisting of phenols, phosphorus, and sulfur compounds can be used as the antioxidant.

The phenolic antioxidant may contain, for example, 2,6-di-tert-butyl-p-cresol, 2,6-diphenyl-4-octadecane oxyphenol, stearyl (3,5-di-tert-butyl) 4-hydroxyphenyl)propionate, distearyl (3,5-di-tert-butyl-4-hydroxyphenyl) phosphate, thirteen-based • 3,5-di-tert-butyl-4-hydroxyl Benzyl thioacetate, thiodivinyl bis[(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], 4,4'-thiobis(6-tert-butylyl) Phenol), 2-octylthio-4,6-bis(3,5-di-tert-butyl-4-hydroxyphenyl)-s-triazo [well], 2,2'-methylene double (4-methyl-6-tert-butylphenol), bis[3,3-bis(4-hydroxy-3-tert-butylphenyl)butanoate]ethylene glycol, 4,4'-butylene double (2,6-di-tert-butylphenol), 4,4'-butylene bis(6-tert-butyl-3-methylphenol), 2,2'-ethylene bis (4,6-di Tert-butylphenol), 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, bis[2-tert-butyl-4-methyl-6-( 2-hydroxy-3-tert-butyl-5-methylbenzyl)phenyl]terephthalate, 1,3,5-tris(2,6-dimethyl-3-hydroxy-4-tert Butylbenzyl)isocyanurate, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate, 1,3,5-tris (3, 5- Di-tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene, 1,3,5-tri[(3,5-di-tert-butyl-4-hydroxyphenyl)propanyl Oxyethyl]isocyanurate, tetrakis[methylene-3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionate]methane, 2-tert-butyl- 4-methyl-6-(2-propenyloxy-3-tert-butyl-5-methylbenzyl)phenol, 3,9-bis[2-(3-tert-butyl-4-hydroxy-5- Methylhydroxy hydrogenated cinnamyloxy)-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane, triethylene glycol bis[β-(3 At least one of -tert-butyl-4-hydroxy-5-methylphenyl)propionate] and tocopherol.

The phosphorus antioxidant may include, for example, triphenyl phosphite, tris(2,4-di-tert-butylphenyl) phosphite, tris(2,5-di-tert-butylphenyl) phosphite, three (nonylphenyl) phosphite, tris(didecylphenyl)phosphite, tris(mono,dihydromethanephenyl)phosphite, diphenyl phosphite, 2,2'-methylene Bis(4,6-di-tert-butylphenyl)octyl phosphite, diphenylphosphonium phosphite, diphenyloctyl phosphite, bis(nonylphenyl)pentaerythritol II Phosphite, phenyl diisodecyl phosphite, tributyl phosphite, tris(2-ethylhexyl) phosphite, tridecyl phosphite, trilaurate phosphite, dibutyl phosphite Base ester, dilauryl phosphite, trilauryl trithiophosphite, bis(neopentyl glycol) • 1,4-cyclohexane dimethyl diphosphite, bis (2,4-di unter Butylphenyl) pentaerythritol diphosphite, bis(2,5-di-tert-butylphenyl)neopentanol diphosphite, bis(2,6-di-tert-butyl-4-methyl) Phenyl phenyl) neopentyl alcohol diphosphite, bis(2,4-diisopropylphenylphenyl)neopentitol diphosphite, distearyl fluorenyl neopentyl Diphosphite, tetra(C12-15 mixed alkyl)-4,4'-isopropylidenediphenylphosphite, bis[2,2'-methylenebis(4,6-dipentyl) Phenyl)] • isopropylidene diphenyl phosphite, tetra-trisyl 4,4′-butylene bis(2-tert-butyl-5-methylphenol) diphosphite, six (tenth) Tribasic) • 1,1,3-tris(2-methyl-5-tert-butyl-4-hydroxyphenyl)butane •triphosphite, tetrakis(2,4-di-tert-butylphenyl) Diphenyl diphosphite, tris(2-[(2,4,7,9-tetra-tert-butyldibenzo[d,f][1,3,2]dioxaphosphinane) -6-yl)oxy]ethyl)amine, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, tris(2-[(2,4,8,10-four) tert-Butyl-dibenzo[d,f][1,3,2]dioxaphospholene-6-yl)oxy)ethyl)amine, 2-(1,1-dimethyl Ethyl)-6-methyl-4-[3-[[2,4,8,10-tetrakis(1,1-dimethylethyl)diphenyl[d,f][1,3,2] At least one of dioxaphospholene-6-yl)oxy]propyl]phenol 2-butyl-2-ethylpropanediol and 2,4,6-tri-tert-butylphenol monophosphite .

Examples of the sulfur-based antioxidant may include at least one of a dialkylthiodipropionate and a β-alkylmercaptopropionate of a polyalcohol.

Here, the dialkylthiodipropionate may be dilauryl thiodipropionic acid, dimyristyl thiodipropionic acid, nutmeg stearyl sulphur At least one of myristylstearyl thiodipropionic acid and distearylester thiodipropionic acid. Further, the β-alkylmercaptopropionate of the polyalcohol may be pentaerythritoltetra (β-dodecyl mercaptopropionate).

The photosensitive resin composition contained in the exemplary embodiment may contain an antioxidant in an amount of 1 to 5 wt% based on the total weight of the solid of the photosensitive resin composition in the photosensitive resin composition according to the exemplary embodiment. Preferably, the antioxidant may be contained in an amount of 1 to 3 wt% of the photosensitive resin composition according to the exemplary embodiment, but the content is not limited thereto.

The photosensitive resin composition according to the exemplary embodiment may contain the above-described antioxidant to have excellent heat resistance and chemical resistance. Therefore, the quenching phenomenon due to deterioration due to UV or generated heat during the pattern process of the nano fluoropowder can be avoided.

In general, the photosensitive resin composition generates radicals in a post-process step under conditions such as high temperature, and thus lowers the heat resistance and chemical resistance of the composition and particularly the nano-fluorescent powder. Therefore, a phenomenon of a decrease in the amount of light due to deterioration of the nano-phosphor may occur. However, the photosensitive resin composition according to an exemplary embodiment of the present invention may further contain an antioxidant to deactivate the radical and thus have excellent heat resistance and chemical resistance.

In particular, radicals generated at high temperatures have good reactivity and thus react with surrounding oxygen (refer to Reaction Scheme 1), and radicals reactive with oxygen are rapidly reacted with di-tert-butylphenol (which is included) The hydroxyl group of the substituent in the antioxidant is combined to deactivate the radical (refer to Reaction Scheme 2).

[Reaction formula 1] R ̇ + O ₂ → ROO ̇ R [Reaction formula 2] ROO ̇ + di-tert-butylp hydroxy group → ROOH)

The photosensitive resin composition according to the exemplary embodiment may further include a light scatterer. The light scatterer scatters the incident light to increase the amount of light passing through the color filter or the color conversion layer formed of the photosensitive resin composition, and equalizes the front luminance and the side luminance.

The light scatter may include at least one selected from the group consisting of TiO2, Al2O3, and SiO2.

The amount of the light scatterer or the size of the light scatterer is not particularly limited, and may be appropriately selected in consideration of the photosensitive resin composition. In this case, the diameter (nm) of the light scatterer may be 1/10 to 5 times the wavelength (nm) of light emitted from the layer formed of the photosensitive resin composition, and the light emitted from the light scattering more efficiently .

The photosensitive resin composition according to the exemplary embodiment can be used as a color filter composition.

Hereinafter, experimental results of changes in light efficiency of the photosensitive resin composition according to the exemplary embodiment will be described with reference to FIGS. 1A and 1B and 3.

1A and 1B are graphs obtained by measuring the light maintenance rate and the amount of light of green light according to the process of the photosensitive resin composition in the experimental examples and the comparative examples according to the exemplary embodiments, and 2A and 2B are graphs obtained by measuring the light maintenance rate and the amount of light of red light according to the process of the photosensitive resin composition in the experimental examples and the comparative examples according to the exemplary embodiments.

In order to measure the light efficiency of the layer formed using the photosensitive resin composition according to the exemplary embodiment, the light maintenance ratio and the light amount of the green wavelength band and the red wavelength band are respectively measured after the layer is formed by the deposition process of the photosensitive resin composition. .

According to the application of the photosensitive resin composition on the substrate, drying at room temperature (15 to 25 ° C) for 4 hours, prebaking at 100 ° C for 3 minutes, 400 mJ UV exposure process and hard baking at 180 ° C The deposition process was carried out for 30 minutes.

In the comparative example, a photosensitive resin composition containing no antioxidant was used, and in Experimental Example 1, a photosensitive resin composition using an antioxidant containing only a phenol compound was used, and in Experimental Examples 2 to 5, it was used. A photosensitive resin composition containing an antioxidant of a phenol or a phosphorus compound, and a layer made of a photosensitive resin composition containing an antioxidant containing a mixture of a phenol, a phosphorus, and a sulfur compound in Experimental Examples 6 and 7. Come up and experiment.

Here, the antioxidants used in Experimental Example 2 to Experimental Example 7, respectively, were produced according to the mixing ratio with respect to the total weight of the antioxidant shown in Table 1, and although the phosphorus compounds in Experimental Example 3 and Experimental Example 5 were used. The same amount is contained, but the phosphorus compounds used in the individual examples are different from each other.

[Table 1]

First, referring to Figs. 1A and 1B, it was confirmed that the light amount and the light maintenance ratio of the green wavelength band were about 80 to 85% as compared with the initial light after the patterning process of the photosensitive resin composition was completed.

Referring to FIGS. 2A and 2B, the light maintenance ratio of the red wavelength band was measured by the photosensitive resin composition of Experimental Example 1, and it was confirmed that the amount of light in the red wavelength band after completion of the pattern process of the photosensitive resin composition The light maintenance rate is about 76% compared to the initial light.

On the other hand, referring to the experimental results of the comparative examples shown in FIGS. 1A, 1B, 2A, and 2B, it was confirmed that the amount of light in the green wavelength band after completion of the pattern process of the photosensitive resin composition The light maintenance ratio is about 44% as compared with the initial light, and the light amount and the light maintenance ratio of the red wavelength band are about 64% as compared with the initial light, and the photosensitive resin composition containing the antioxidant of the present invention is used. The light maintenance rate is excellent.

In the case of using a color filter manufactured using the photosensitive resin composition according to the exemplary embodiment, the measurement result of the color reproducibility will be reviewed with reference to FIG.

Fig. 3 is a view showing a color coordinate obtained by using a color filter of a photosensitive resin composition according to the examples (RS) and Comparative Example (Ref).

As shown in FIG. 3, it can be confirmed that it is manufactured using a photosensitive resin composition containing no antioxidant, in the case of using a color filter manufactured using the photosensitive resin composition according to an exemplary embodiment of the present invention. The color coordinate area is expanded to allow for improved color reproducibility compared to the color filter.

Next, a display device including a color filter manufactured using the photosensitive resin composition according to the exemplary embodiment will be described with reference to FIGS. 4 and 5.

4 is a plan view showing a liquid crystal display device according to an exemplary embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along line V-V of FIG. 4.

Referring to FIGS. 4 and 5, the liquid crystal display device according to the present exemplary embodiment includes a lower display panel 100 and an upper display panel 200, and a liquid crystal layer 3 interposed between the two display panels 100 and 200.

First, the lower display panel 100 will be described.

A plurality of gate lines 121 are formed on an insulating substrate 110 made of transparent glass or plastic.

The gate line 121 transmits a gate signal and extends mainly in the X-axis direction. Each of the gate lines 121 includes a plurality of gate electrodes 124 protruding from the gate lines 121 and a wide end portion 129 for connection to another layer or a gate driver (not shown).

The gate electrode 124 has a two-layer structure formed of a lower layer 124p and an upper layer 124r. The lower layer 124p may be formed of any one of titanium, tantalum, molybdenum, and alloys thereof, and the upper layer 124r may be formed of copper (Cu) or a copper alloy. Further, the gate line 121 and the end portion 129 of the gate line 121 may be formed of a double layer of a lower layer and an upper layer. In the present exemplary embodiment, the gate line 121 and the gate electrode 124 are described as having a two-layer structure, but the gate line 121 and the gate electrode 124 may have a single layer structure.

A gate insulating layer 140 formed of, for example, an insulating material of tantalum nitride or tantalum oxide is formed on the gate line 121.

A semiconductor layer 151 formed of hydrogenated amorphous germanium, polycrystalline germanium or the like is formed on the gate insulating layer 140. The semiconductor layer 151 extends mainly in a direction in which the data line 171 extends, and includes a plurality of protrusions 154 extending toward the gate electrode 124.

An ohmic contact strip 161 and an ohmic contact island 165 are provided on the semiconductor layer 151. The ohmic contact strip 161 has a protruding portion 163, and the protruding portion 163 and the ohmic contact island 165 form a pair and are disposed on the protruding portion 154 of the semiconductor layer 151.

The ohmic contact strip 161 overlaps the data line 171, the protruding portion 163 of the ohmic contact strip 161 overlaps the source electrode 173, and the ohmic contact island 165 overlaps the drain electrode 175.

A source electrode 173 connected to the data line 171 and a drain electrode 175 facing the source electrode 173 are provided on the ohmic contact strip 161 and the ohmic contact island 165 and the gate insulating layer 140.

The data line 171 transmits a data signal and mainly extends in the Y-axis direction to cross the gate line 121. The source electrode 173 may extend toward the gate electrode 124 to have a U-shape, but it is merely an illustration, and the source electrode 173 may have various modified shapes.

The drain electrode 175 is spaced apart from the data line 171 and extends upward from the middle of the U-shaped source electrode 173. Data line 171 includes an end 179 having a wide area for connection to another layer or data driver (not shown).

Although not depicted in the drawings, the data line 171, the source electrode 173, and the drain electrode 175 may have a two-layer structure of an upper layer and a lower layer. The upper layer may be formed of copper (Cu) or a copper alloy, and the lower layer may be formed of any one of titanium (Ti), tantalum (Ta), molybdenum (Mo), and alloys thereof.

The data line 171, the source electrode 173, and the drain electrode 175 may have tapered side surfaces.

The ohmic contact strip 161, the protruding portion 163 of the ohmic contact strip 161, and the ohmic contact island 165 are only present between the protruding portion 154 of the semiconductor layer 151 and the semiconductor layer 151 and the upper surface between the data line 171 and the gate electrode 175, and are lowered. Contact resistance between them. Further, the ohmic contact strip 161, the protruding portion 163 of the ohmic contact strip 161, and the ohmic contact island 165 may have substantially the same plan view as the data line 171, the source electrode 173, and the drain electrode 175.

In the protruding portion 154 of the semiconductor layer 151, in addition to the portion between the source electrode 173 and the drain electrode 175, there is an exposed portion which is not covered by the data line 171 and the gate electrode 175. The semiconductor layer 151 has substantially the same plan view as the ohmic contact strip 161, the protruding portion 163 of the ohmic contact strip 161, and the ohmic contact island 165 except for the exposed portion of the protruding portion 154.

A gate electrode 124, a source electrode 173 and a drain electrode 175 form a thin film transistor (TFT) together with the protrusion 154 of the semiconductor layer 151, and a channel of the thin film transistor is formed at the source electrode 173 and the drain electrode In the protrusion 154 of the semiconductor layer 151 between the electrodes 175.

A protective layer 180 including a first protective layer 180a and a second protective layer 180b is formed on the exposed portions of the data line 171, the drain electrode 175, and the protruding portion 154 of the semiconductor layer. The protective layer 180 may be formed of an inorganic insulator such as tantalum nitride or tantalum oxide.

The first contact hole 181 through which the end portion 129 of the gate line 121 is exposed is formed in the protective layer 180 and the gate insulating layer 140. Further, a second contact hole 182 through which the end portion 179 of the data line 171 is exposed and a third contact hole 185 through which the end of the drain electrode 175 is exposed are formed in the protective layer 180.

The pixel electrode 191, the first contact assistant 81, and the second contact assistant 82 are provided on the protective layer 180. The pixel electrode 191 and the contact assistants 81 and 82 may be made of a transparent conductive material such as ITO or IZO, or a reflective metal such as aluminum, silver, chromium or an alloy thereof.

The pixel electrode 191 is physically and electrically connected to the drain electrode 175 through the third contact hole 185 and receives the data voltage from the drain electrode 175.

The first contact assistant 81 is connected to the end portion 129 of the gate line 121 through the first contact hole 181, and the second contact assistant 82 is connected to the end portion 179 of the data line 171 through the second contact hole 182. The first contact assistant 81 and the second contact assistant 82 supplement the adhesion between the end portion 129 of the gate line 121 and the end portion 179 of the data line 171 and the external device, and protect the end portion.

Although not depicted, an alignment layer may be provided on the pixel electrode 191.

Next, the upper display panel 200 will be described.

The light blocking layer 220 is provided on one side of the upper substrate 210 and faces the insulating substrate 110 made of glass, plastic, or the like. That is, the light blocking layer 220 is provided under the upper substrate 210. The light blocking layer 220 blocks light leakage that may occur between adjacent pixel regions.

The color filter 230 is provided on one side of the upper substrate 210 and faces the insulating substrate 110. That is, the color filter 230 is provided under the upper substrate 210. The edge portion of the color filter 230 may overlap the light blocking layer 220. The color filter 230 may mainly appear in a region surrounded by the light blocking layer 220, and may extend longitudinally along a row of the pixel electrode 191. Each of the color filters 230 can display any of the three primary colors of red, green, and blue.

The color filter 230 may be formed of the above-described photosensitive resin composition according to an exemplary embodiment of the inventive concept.

The photosensitive resin composition contained in the color filter 230 of the liquid crystal display device according to the present exemplary embodiment includes quantum dots which can realize a wide viewing angle by the Lambertian scattering state, and thus can improve the viewing angle of the liquid crystal display device .

In the present exemplary embodiment, it is described that the light blocking layer 220 and the color filter 230 are formed on the upper display panel 200, but at least one of the light blocking layer 220 and the color filter 230 may be formed on the lower display panel 100.

For example, the color filter 230 may be formed instead of the second protective layer 180b formed on the lower display panel 100, and in this case, the color filter 230 may not be formed on the upper display panel 200.

The cover layer 250 is disposed on one side of the color filter 230 and on one side of the light blocking layer 220, which faces the insulating substrate 110. That is, as shown, the cover layer 250 is disposed under the color filter 230 and the light blocking layer 220. The cover layer 250 may be made of an (organic) insulating material and may prevent the color filter 230 from being exposed and provide a flat surface. The cover layer 250 can be omitted.

The common electrode 270 is disposed on one side of the cover layer 250 facing the insulating substrate 110. That is, the common electrode 270 is provided between the cover layer 250 and the liquid crystal layer 3. The common electrode 270 is made of a transparent conductor such as ITO or IZO, and receives a common voltage Vcom.

Although not shown in the drawings, an alignment layer may be disposed between the common electrode 270 and the liquid crystal layer 3.

The liquid crystal layer 3 interposed between the lower display panel 100 and the upper display panel 200 contains liquid crystal molecules having negative dielectric anisotropy or positive dielectric anisotropy, and liquid crystal molecules can be aligned to have no electric field therein The long axis is made perpendicular to the surfaces of the two display panels 100 and 200.

The pixel electrode 191 and the common electrode 270 together with the portion of the liquid crystal layer 3 therebetween form a liquid crystal capacitor to maintain the applied voltage even after the thin film transistor is turned off.

The pixel electrode 191 may overlap with a storage electrode line (not shown) to form a storage capacitor, and the voltage storage capability of the liquid crystal capacitor may be increased therethrough.

As shown in FIGS. 4 and 5, the common electrode 270 may be disposed on the lower display panel 100, and in this case, the liquid crystal molecules included in the liquid crystal layer 3 are aligned such that the long axis thereof is applied without an electric field and The surfaces of the display panels 100 and 200 are horizontally parallel.

Heretofore, the photosensitive layer resin composition according to the exemplary embodiment using the color filter of the liquid crystal display device depicted in FIGS. 4 and 5 is an exemplary embodiment, but the photosensitive layer according to the exemplary embodiment. The resin composition can be used for all display devices in which a color filter can be used.

Hereinafter, a color conversion panel according to an exemplary embodiment of the inventive concept will be described with reference to FIG.

Fig. 6 is a cross-sectional view of a color conversion panel according to an exemplary embodiment of the present invention.

As shown in FIG. 6, the color conversion panel 30 includes a first color conversion layer 340R, a second color conversion layer 340G, and a transmission layer 340B provided on the first substrate 310.

The first color conversion layer 340R, the second color conversion layer 340G, and the transmission layer 340B may be fabricated from the above-described photosensitive layer resin composition according to an exemplary embodiment of the inventive concept.

Here, the first color conversion layer 340R may be a red conversion layer, and the second color conversion layer 340G may be a green conversion layer.

The first color conversion layer 340R and the second color conversion layer 340G may include quantum dots or inorganic phosphors that convert colors, and the transmission layer 340B is made of a transparent polymer that does not contain inorganic phosphors and quantum dots and thus is directly transmitted from the backlight. The blue light provided by the component is thus blue.

The light blocking member 372 may be provided between the first color conversion layer 340R and the second color conversion layer 340G, between the first color conversion layer 340R and the transmission layer 340B, and between the second color conversion layer 340G and the transmission layer 340B, respectively. .

The light blocking member 372 can divide the regions of the first color conversion layer 340R, the second color conversion layer 340G, and the transmission layer 340B which are respectively disposed. Light blocking element 372 avoids color mixing between adjacent color conversion layers 340R and 340G and transmission layer 340B.

A flat layer 355 providing a flat surface may be provided on the first color conversion layer 340R, the second color conversion layer 340G, and the transmission layer 340B, but the flat layer 355 may be omitted as needed.

Hereinafter, a liquid crystal display device according to an exemplary embodiment will be schematically described with reference to FIG.

Fig. 7 is a schematic cross-sectional view of a liquid crystal display device according to an exemplary embodiment of the inventive concept.

Referring to FIG. 7, a liquid crystal display device according to an exemplary embodiment includes a color conversion panel 30, a display panel 10, and a backlight assembly 500. The color conversion panel 30 included in the liquid crystal display device according to the exemplary embodiment is the same as the color conversion panel 30 according to the exemplary embodiment of FIG. 6, and thus repeated description of similar elements will be omitted. However, as with the color conversion panel 30 of FIG. 6, the first substrate 310 and the display panel 10 may be disposed in contact with each other, or the flat layer 355 and the display panel 10 may be disposed while being in contact with each other.

The display panel 10 disposed on one side of the color conversion panel 30 may include a liquid crystal panel 50 and polarizing plates 12 and 22 respectively disposed on sides of the liquid crystal panel 50. That is, the first polarizing plate 12 and the second polarizing plate 22 are provided on the side of the liquid crystal panel 50 to polarize incident light from the backlight assembly 500. The first polarizing plate 12 may face the backlight assembly 500, and the second polarizing plate 22 may face or contact the color conversion panel 30.

The backlight assembly 500 may include a light source and a light guide panel (not shown) disposed on a bottom surface of the first polarizing plate 12 and guide light generated from the light source toward the display panel 10 and the color conversion panel 30.

For example, the backlight assembly 500 can include at least one light emitting diode, and the light emitting diode can be a blue light emitting diode or a UV light source. The light source according to the exemplary embodiment may be a direct type backlight assembly in which an edge type backlight assembly or a light source of the backlight assembly 500 disposed on at least one side of the light guide panel is disposed under a light guide panel (not shown), but There are no restrictions. The light source can be placed at any position.

Next, a liquid crystal display device exemplified as the above display panel will be described in detail with reference to FIGS. 8 and 9.

8 is a plan view of a plurality of pixels of a liquid crystal display device according to an exemplary embodiment of the present invention, and FIG. 9 is a cross-sectional view of FIG. 8 taken along line IX-IX.

The color conversion panel 30 shown in Figs. 8 and 9 is the same as the color conversion panel 30 according to the exemplary embodiment of Fig. 6, and any redundant description will be omitted.

The liquid crystal panel 50 disposed on one side of the color conversion panel 30 includes: a thin film transistor and a lower substrate lower display panel 100, a lower display panel 100 and a display panel 200 including an upper substrate 210, and a lower display panel A liquid crystal layer 3 for displaying an image between the 100 and the upper display panel 200.

The first polarizing plate 12 and the second polarizing plate 22 are respectively disposed on the side of the liquid crystal panel 50, and in this case, the polarizing plates 12 and 22 may be one of coating type polarizing, adhesive type polarization, and wire grid polarizing. A variety. The polarizing plates 12 and 22 may be provided on one side of the liquid crystal panel 50 in various methods such as a film form, a coating form, an attached form, and the like.

A plurality of pixel electrodes may be arranged in a matrix arrangement on the insulating substrate 110 of the lower display panel 100.

On the insulating substrate 110, the gate line 121 extends in the X-axis direction and includes a gate electrode 124. The gate insulating layer 140 is disposed on the gate line 121, and the protruding portion 154 is disposed on the gate insulating layer 140. The 171 and the drain electrode 175 are disposed on the protruding portion 154 and extend in the Y-axis direction, and the protective layer 180 is provided on the data line 171 and the drain electrode 175. The pixel electrode 191 is physically and electrically connected to the drain electrode 175 through the contact hole 185.

The protruding portion 154 disposed on the gate electrode 124 forms a channel layer in a region where the source electrode 173 and the drain electrode 175 are exposed, and the gate electrode 124, the protruding portion 154, the source electrode 173, and the drain electrode 175 form a single film. Transistor.

The light blocking layer 220 is disposed on a side facing the upper substrate 210 of the insulating substrate 110. A cover layer 250 providing a flat surface may be disposed on the light blocking layer 220 facing the insulating substrate 110, and the common electrode 270 is disposed on the cover layer 250 facing the insulating substrate 110. Cover layer 250 may be omitted in accordance with the illustrative embodiments. The common electrode 270 can be provided on the lower display panel 100.

The common electrode 270 receiving the common voltage forms an electric field with the pixel electrode 191 to align the liquid crystal material 31 included in the liquid crystal layer 3.

The liquid crystal layer 3 includes a plurality of liquid crystal materials 31, and the alignment direction of the liquid crystal material 31 is controlled by an electric field between the pixel electrode 191 and the common electrode 270. The light transmittance of the light received from the backlight assembly 500 can be controlled by controlling the alignment of the liquid crystal material 31 so that an image can be displayed.

Further, although not depicted in the drawings, an alignment layer may be disposed between the pixel electrode 191 and the liquid crystal layer 3 and between the common electrode 270 and the liquid crystal layer 3.

The flat layer 355 of the color conversion panel 30 may be disposed to face the upper substrate 210 of the display panel 10.

Referring to Fig. 10, an illustrative variation of the exemplary embodiments described with reference to Figs. 8 and 9 will now be described.

Figure 10 is a cross-sectional view of another exemplary embodiment of Figure 9 taken along line IX-IX.

The exemplary embodiment described with reference to FIG. 10 is the same as the exemplary embodiment of FIG. 9 except for the upper display panel 300. Any redundant description will be omitted.

As shown in FIG. 10, the display panel 10' according to the present exemplary embodiment includes a lower display panel 100, a color conversion panel 30 spaced apart from the lower display panel 100 and facing the lower display panel 100, and a lower display panel 100. The liquid crystal layer 3 is interposed between the color conversion panel 30. That is, unlike the exemplary embodiment with reference to Figs. 8 and 9, in place of the upper display panel 200, the color conversion panel 30 partially forms the display panel 10' according to the exemplary embodiment of Fig. 10.

The display panel 10' may further include a first polarizing plate 12 provided on one side of the lower display panel 100 and a second polarizing plate 22 provided on the other side of the lower display panel 100.

Here, the second polarizing plate 22 may be disposed between the color conversion panel 30 and the liquid crystal layer 3.

Further, although not depicted, an alignment layer may be provided between the pixel electrode 191 and the liquid crystal layer 3 and between the second polarizing plate 22 and the liquid crystal layer.

The liquid crystal display device according to the exemplary embodiment can improve the light amount and color reproducibility through the color conversion panel, and the color conversion panel is disposed on the display panel and includes quantum dots containing inorganic phosphors or having a Lambertian scattering state. Color conversion layer.

Hereinafter, a liquid crystal display device which is an exemplary embodiment of the inventive concept will be described in detail with reference to FIGS. 11 to 13.

11 is a plan view of a plurality of pixels in a liquid crystal display device according to an exemplary embodiment, and FIG. 12 is a cross-sectional view of FIG. 11 taken along line XII-XII, and FIG. 13 is along line XIII- A cross-sectional view of Fig. 11 taken at XIII.

The color conversion panel 30 shown in FIGS. 11 to 13 is the same as the color conversion panel 30 according to the exemplary embodiment of FIG. 6, and thus any redundant description will be omitted.

Referring to FIGS. 11 to 13 , a liquid crystal display device according to an exemplary embodiment includes a display panel 10 , a color conversion panel 30 , and a backlight assembly 500 . The display panel 10 can be disposed on the backlight assembly 500 and the color conversion panel 30 can be disposed on the display panel 10.

The display panel 10 according to an exemplary embodiment of the present invention may include a liquid crystal panel 50 and first and second polarizing plates 12 and 22 provided on the side of the liquid crystal panel 50. In this case, the polarizing plates 12 and 22 may be one or more of coating type polarizing, adhesive type polarizing, and wire grid polarizing, and may be provided to the liquid crystal panel 50 by various methods such as a film form, a coating form, an attached form, and the like. On both sides.

11 depicts 2*2 pixels among a plurality of pixels, and in the liquid crystal display device according to the present exemplary embodiment, such pixel formats can be repeatedly arranged vertically and horizontally.

Referring to FIGS. 11 to 13, in the liquid crystal panel 50, the gate line 121 is provided on the substrate 110. The gate line 121 includes a gate electrode 124.

A gate insulating layer 140 is provided on the gate line 121. A semiconductor layer 151 disposed under the data line 171 and a protrusion 154 disposed under the source electrode 173 / the drain electrode 175 and disposed in the channel portion of the thin film transistor Q are provided on the gate insulating layer 140.

Although not depicted, a plurality of ohmic contact elements may be provided over the protrusions 154 of the semiconductor layer 151 and the semiconductor layer 151 and between the data line 171 and the source electrode 173 / the drain electrode 175, respectively.

A data conductor including the source electrode 173, a data line 171 connected to the source electrode 173, and a drain electrode 175 are provided on each of the semiconductor layer 151 and the protruding portion 154 of the semiconductor layer 151 and the gate insulating layer 140.

The gate electrode 124, the source electrode 173, and the drain electrode 175 form a thin film transistor Q together with the protrusion 154, and the channel of the thin film transistor Q is formed at the protrusion 154 between the source electrode 173 and the gate electrode 175. Part of it.

The first protective layer 180a may be disposed on the exposed portion of the data conductor and the protrusion 154. The first protective layer 180a may include an inorganic insulating material or an organic insulating material such as tantalum nitride (SiNx) or tantalum oxide (SiOx).

The second protective layer 180b and the light blocking layer 220 are disposed on the first protective layer 180a.

First, the light blocking layer 220 is formed in a lattice-like structure having an opening corresponding to the image display area, and is made of a material through which light cannot be transmitted. The second protective layer 180b is provided in the opening of the light blocking layer 220. The light blocking layer 220 includes a vertical light blocking member formed along the X-axis direction parallel to the gate line 121 and a vertical light blocking member formed along the Y-axis direction parallel to the data line 171.

The second protective layer 180b may include an inorganic insulating material or an organic insulating material such as tantalum nitride (SiNx) or tantalum oxide (SiOx).

The third protective layer 180c is provided on the second protective layer 180b and the light blocking layer 220 to cover the second protective layer 180b and the light blocking layer 220. The third protective layer 180c may include an inorganic insulating material or an organic insulating material such as tantalum nitride (SiNx) or tantalum oxide (SiOx).

When a step is generated due to a difference in thickness between the second protective layer 180b and the light blocking layer 220, the step can be reduced or removed by controlling the third protective layer 180c to include an organic insulating material.

A contact hole 185 exposing the drain electrode 175 is formed in the first to third protective layers 180a, 180b, and 180c and the light blocking layer 220.

The pixel electrode 191 is disposed on the third protective layer 180c. The pixel electrode 191 can be made of a transparent conductive material such as ITO or IZO.

The general shape of the pixel electrode 191 may be a quadrangle.

The pixel electrode 191 includes a protruding portion 197 extending toward the gate line 121, which is physically and electrically connected to the gate electrode 175 through a contact hole 185 in the protruding portion 197, and receives a data voltage from the drain electrode 175.

The above description of the thin film transistor Q and the pixel electrode 191 is an example, and the structure of the thin film transistor and the design of the pixel electrode can be modified to improve side visibility without being limited by the above structure.

The lower alignment layer 11 is disposed on the pixel electrode 191, and the lower alignment layer 11 may be a vertical alignment layer. The lower alignment layer 11 is, for example, a liquid crystal alignment layer of polyamic acid, polysiloxane or polyimide, and may be formed of at least one of materials which are generally used.

The upper alignment layer 21 is disposed at a portion facing the lower alignment layer 11, and a plurality of microcavities 305 are formed between the lower alignment layer 11 and the upper alignment layer 21. The liquid crystal layer 3 is disposed in the microcavity 305. The liquid crystal layer 3 contains a liquid crystal material 31, and the liquid crystal material 31 can be implanted through an inlet 307 provided at the edge of the microcavity 305. The microcavity 305 can provide a plurality of in the row direction, that is, in the vertical direction of the pixel electrode 191. In the present exemplary embodiment, the liquid crystal material 31 including the alignment material forming the alignment layers 11 and 21 and the liquid crystal material 31 containing liquid crystal molecules can be injected into the microcavity by capillary force. In the present exemplary embodiment, the lower alignment layer 11 and the upper alignment layer 21 are distinguished according to positions, and as shown in Fig. 12, they may be connected to each other. The lower alignment layer 11 and the upper alignment layer 21 can be simultaneously formed.

The microcavity 305 is vertically divided by a plurality of liquid crystal inlets 307FP provided in portions overlapping the gate lines 121, so that a plurality of microcavities 305 are formed, and the plurality of microcavities 305 can be along the line direction. That is, the pixel electrode 191 is disposed in the vertical direction. The liquid crystal inlet 307FP is formed by a manufacturing process, but a capping layer 390 may be provided in the final structure. Further, the microcavity 305 is partitioned along the X-axis direction by the partition wall portion PWP, and a plurality of microcavities 305 may be formed along the X-axis direction of the pixel electrode 191. Each microcavity may correspond to one pixel or two pixel regions, and each pixel region may correspond to an area in which an image is displayed.

The common electrode 270 and the lower insulating layer 350 are provided on the upper alignment layer 21. The common electrode 270 receives the common voltage and generates an electric field together with the pixel electrode 191 to which the data voltage is applied to define the direction in which the liquid crystal material 31 in the microcavity 305 is inclined. The common electrode 270 forms a capacitor with the pixel electrode 191 and maintains the voltage applied thereto after the thin film transistor is turned off. The lower insulating layer 350 may be formed of tantalum nitride (SiNx) or tantalum oxide (SiO ₂ ).

In the present exemplary embodiment, the common electrode 270 is provided over the liquid crystal layer 3, but the common electrode 270 may be disposed under the microcavity 305, and thus another exemplary embodiment according to the inventive concept may be based on a coplanar electrode ( CE) mode drives the LCD.

The top layer 360 is provided on the lower insulating layer 350. The top layer 360 is used to support the formation of the microcavity 305, which is the space between the pixel electrode 191 and the common electrode 270. The top layer 360 can comprise a photoresist or other organic material.

Upper insulating layer 370 is provided on top layer 360. The upper insulating layer 370 may be in contact with the upper surface of the roof layer 360.

In the present exemplary embodiment, as shown in Fig. 12, the partition wall portion PWP is provided between the microcavities 305 adjacent in the horizontal direction. The partition wall portion PWP may be formed along the Y-axis direction in which the data line 171 extends, and may be covered by the roof layer 360. The partition wall portion PWP is filled with the common electrode 270, the lower insulating layer 350, the roof layer 360, and the upper insulating layer 370, and such a structure forms a partition wall to divide or define the microcavity 305.

As shown in FIG. 13, the upper insulating layer 370 may cover the side surface of the top layer 360, and as an exemplary variation, the sidewalls of the lower insulating layer 350, the sidewalls of the roof layer 360, and the sidewalls of the upper insulating layer 370 may be substantially equally aligned with each other. .

A capping layer 390 is provided on the upper insulating layer 370. The capping layer 390 comprises an organic material or an inorganic material. In the exemplary embodiment, the capping layer 390 may be disposed not only on the upper insulating layer 370 but also in the liquid crystal inlet 307FP. In this case, the capping layer 390 can cover the inlet 307 of the microcavity 305 exposed by the liquid crystal inlet 307FP.

The flat layer 355 of the color conversion panel 30 is disposed to face the capping layer 390 of the display panel 10.

The display device according to the present exemplary embodiment can improve the amount of light and color reproducibility through a color conversion panel that is disposed on the display panel and that includes a color of a quantum dot containing an inorganic phosphor or having a Lambertian scattering state Conversion layer.

Hereinafter, an organic light emitting display device according to an exemplary embodiment of the present invention will be described with reference to FIGS. 14 to 15.

14 is a plan view of a plurality of pixels in an organic light-emitting display device according to an exemplary embodiment of the present invention, and FIG. 15 is a cross-sectional view of FIG. 14 taken along line XV-XV.

The organic light emitting display device according to the present exemplary embodiment may include a color conversion panel 30 and an organic light emitting panel 20.

The color conversion panel 30 shown in Figs. 14 to 15 is the same as the color conversion panel 30 according to the exemplary embodiment of Fig. 6, and any redundant description will be omitted.

Referring to FIGS. 14 and 15 , a plurality of gate conductors including a plurality of first gate lines 121 and a plurality of second gate electrodes 124 are provided on the insulating substrate 110, and each of the plurality of gate lines 121 One includes a first gate electrode 124a.

The gate line 121 transmits a gate signal and extends in the X-axis direction.

The first gate electrode 124a protrudes from the gate line 121 in the Y-axis direction, and the second gate electrode 124b is separated from the gate line 121 and includes the storage electrode line 131.

A gate insulating layer 140 is provided on the gate line 121 and the gate electrodes 124a and 124b.

A plurality of first semiconductor layers 154a and second semiconductor layers 154b are provided on the gate insulating layer 140. The first semiconductor layer 154a and the second semiconductor layer 154b are respectively provided on the first gate electrode 124a and the second gate electrode 124b.

A plurality of pairs of protrusions 163 and ohmic contact islands 165 are provided on the first semiconductor layer 154a and the second semiconductor layer 154b, respectively.

A plurality of data conductors including a plurality of data lines 171, a plurality of driving voltage lines 172, and a plurality of first drain electrodes 175a and a plurality of second drain electrodes 175b are provided to the ohmic contact elements 163 and 165 and the gate insulating layer 140 on.

The data line 171 and the driving voltage line 172 transmit data signals and extend substantially in the Y-axis direction, thus intersecting the gate lines 121. Each of the data lines 171 includes a plurality of first source electrodes 173a extending toward the first gate electrode 124a.

The driving voltage line 172 transmits the driving voltage and extends in the Y-axis direction, thus crossing the gate line 121. Each of the driving voltage lines 172 includes a plurality of second source electrodes 173b extending toward the second gate electrode 124b. The driving voltage line 172 overlaps the storage electrode line 131 and may be connected to each other.

The first drain electrode 175a and the second drain electrode 175b are spaced apart from each other and are also separated from the data line 171 and the driving voltage line 172. The first source electrode 173a and the first drain electrode 175a cover opposite sides of the first gate electrode 124a, and the second source electrode 173b and the second drain electrode 175b cover opposite sides of the second gate electrode 124b.

The semiconductor layers 154a and 154b include portions exposed between the source electrodes 173a and 173b and the gate electrodes 175a and 175b.

The protective layer 180 is provided over the data line 171, the driving voltage line 172, the source electrodes 173a and 173b, the drain electrodes 175a and 175b, and the exposed semiconductor layers 154a and 154b.

A plurality of contact holes 185a and 185b exposing the first drain electrode 175a and the second drain electrode 175b, respectively, are provided in the protective layer 180, and the contact hole 184 exposing the second gate electrode 124b is provided on the protective layer 180 and the gate In the insulating layer 140.

A plurality of pixel electrodes 191 and a plurality of connection elements 85 are provided on the protective layer 180.

Each of the pixel electrodes 191 is physically and electrically connected to the second drain electrode 175b through the contact hole 185b, and the connection element 85 is connected to the second gate electrode 124b and the first drain electrode 175a through the contact holes 184 and 185a.

A partition wall 361 is provided on the protective layer 180. The partition wall 361 defines an opening 365 by surrounding a surrounding area of the pixel electrode 191, and is made of an organic or inorganic insulating material. The partition wall 361 may be made of a photoresist containing a black pigment, and in this case, the partition wall 361 may be used as a light blocking member.

An organic light emitting element 470 is provided in the opening 365 between each adjacent partition wall 361. In the present exemplary embodiment, the organic light emitting element 470 of the organic light emitting display device may include a light emitting layer that emits blue light.

A general organic light-emitting display device includes an organic material each emitting light of primary colors such as red, green, and blue, but the organic light-emitting display device according to the present exemplary embodiment includes the content as in the exemplary embodiment of FIG. The red color conversion layer, the green color conversion layer, and the transmissive layer color conversion panel 30 and the blue light emitting layer. In this way, red, green, and blue can be expressed.

Further, the difference is that when the color conversion panel 30 includes a blue conversion layer instead of the transmission layer, a light-emitting layer that emits white light may be included.

The organic light emitting element 470 may have a multilayer structure including an auxiliary layer (not shown) for improving the light emitting efficiency of the light emitting layer in addition to the light emitting layer (not shown). The auxiliary layer may include an electron transport layer (not shown) for balancing electrons and holes, a hole transport layer (not shown), and an electron injection layer for enhancing injection of electrons and holes (not shown). Show) and hole injection layer (not shown).

The common electrode 270 is disposed on the organic light emitting element 470.

In such an organic light emitting display device, the first gate electrode 124a connected to the gate line 121 and the first source electrode connected to the data line 171 form a switch together with the first drain electrode 175a and the first protrusion 154a. The thin film transistor Qs, and the channel of the switching thin film transistor Qs is provided with a first protrusion 154a between the first source electrode 173a and the first drain electrode 175a. The second gate electrode 124b connected to the first drain electrode 175a, the second source electrode 173b connected to the driving voltage line 172, and the second drain electrode 175b connected to the pixel electrode 191 together with the protruding portion 154b form a driving film The transistor Qd, and the channel for driving the thin film transistor Qd, provides a second protrusion 154b between the second source electrode 173b and the second drain electrode 175b. The pixel electrode 191, the organic light emitting element 470, and the common electrode 270 form an organic light emitting diode, and the pixel electrode 191 may be an anode and the common electrode 270 may be a cathode, or the pixel electrode 191 may be a cathode and the common electrode 270 may be an anode. The storage electrode line 131 and the driving voltage line 172 which overlap each other form a storage capacitor Cst.

The flat layer 355 of the color conversion panel 30 is disposed to face the common electrode 270 of the organic light emitting panel 20.

Such an organic light-emitting display device can display an image by emitting light to the upper side of the insulating substrate 100 facing the color conversion panel 30.

However, the difference from the above-described exemplary embodiment is that when the color conversion panel 30 is disposed under the insulating substrate 110 of the organic light emitting panel 20, the organic light emitting display device may display an image by emitting light downward from the insulating substrate 110. Bottom emission type display device.

The organic light-emitting display device according to the exemplary embodiment can improve the light amount and color reproducibility through the color conversion panel, and the color conversion panel is disposed on the display panel and includes quantum dots containing inorganic phosphors or having a Lambertian scattering state. The color conversion layer.

As described above, according to an exemplary embodiment of the inventive concept, it is possible to avoid deterioration of the nano-fluorescent powder during the process by adding an antioxidant to the photosensitive resin composition containing the nano-fluorescent powder. The induced quenching phenomenon, and thus the higher light efficiency and color reproducibility of the display device.

Although the present invention has been described in connection with the present exemplary embodiments of the present invention, it is understood that the invention is not limited to the disclosed embodiments, but rather, Various modifications and equivalent arrangements are possible within the spirit and scope of the appended claims.

10, 10'‧‧‧ display panel
100‧‧‧ lower display panel
11‧‧‧Under the alignment layer
110‧‧‧Insert substrate
12‧‧‧First polarizer
121‧‧‧ gate line
124‧‧‧gate electrode
124a‧‧‧first gate electrode
124b‧‧‧second gate electrode
124p‧‧‧lower
124r‧‧‧Upper
129‧‧‧ wide end
131‧‧‧Storage electrode line
140‧‧‧ gate insulation
151‧‧‧Semiconductor layer
154‧‧‧ Highlights
154a‧‧‧First semiconductor layer
154b‧‧‧second semiconductor layer
161‧‧‧Ohm contact strip
163‧‧‧ Highlights
165‧‧‧ highlights
171‧‧‧Data line
172‧‧‧Drive voltage line
173‧‧‧Source electrode
173a‧‧‧first source electrode
173b‧‧‧second source electrode
175‧‧‧汲electrode
175a‧‧‧First bungee electrode
175b‧‧‧second pole electrode
179‧‧‧ end
180‧‧‧protection layer
180a‧‧‧First protective layer
180b‧‧‧second protective layer
180c‧‧‧ third protective layer
181‧‧‧First contact hole
182‧‧‧second contact hole
184, 185a, 185b‧ ‧ contact holes
185‧‧‧ third contact hole
191‧‧‧pixel electrode
197‧‧‧ protruding parts
200‧‧‧Upper display panel
20‧‧‧Organic light panel
21‧‧‧Upward alignment layer
210‧‧‧Upper substrate
22‧‧‧Second polarizer
220‧‧‧Light barrier
230‧‧‧Color filters
250‧‧‧ Coverage
270‧‧‧Common electrode
3‧‧‧Liquid layer
30‧‧‧Common electrode
305‧‧‧ hole
307‧‧‧Import
307FP‧‧‧ LCD imports
31‧‧‧Liquid crystal materials
310‧‧‧First substrate
340B‧‧‧Transmission layer
340G‧‧‧Second color conversion layer
340R‧‧‧first color conversion layer
350‧‧‧lower insulation
355‧‧‧flat layer
360‧‧‧ top
361‧‧‧ partition wall
365‧‧‧ openings
370‧‧‧Upper insulation
372‧‧‧Light blocking element
390‧‧ ‧ cover layer
470‧‧‧Organic light-emitting elements
50‧‧‧LCD panel
500‧‧‧Backlight assembly
81‧‧‧First contact assistance
82‧‧‧second contact assistance
85‧‧‧Connecting components
PWP‧‧‧ partition wall
Q‧‧‧film transistor
Qs‧‧‧Switch Film Transistor
Qd‧‧‧Drive film transistor

1A and 1B are measurements based on patterns of photosensitive resin compositions using exemplary embodiments (RS-1, RS-2, ... RS-7) and comparative examples ("Ref") according to the inventive concept. The pattern obtained by the light maintenance rate and the amount of light of the green light in the process.

2A and 2B are measurements of the light maintenance rate and the amount of light of red light according to the pattern process using the photosensitive resin composition according to the exemplary embodiment (RS) and the comparative example (Ref) of the inventive concept. Get the schema.

Fig. 3 is a view showing a color coordinate obtained by using a color filter of a photosensitive resin composition according to an exemplary embodiment of the inventive concept.

4 is a plan view showing a liquid crystal display device according to an exemplary embodiment of the inventive concept.

Fig. 5 is a cross-sectional view taken along line V-V of Fig. 4.

Figure 6 is a cross-sectional view of a color conversion panel in accordance with an illustrative embodiment of the inventive concept.

Fig. 7 is a schematic cross-sectional view of a liquid crystal display device according to an exemplary embodiment of the inventive concept.

8 is a plan view of a plurality of pixels in a liquid crystal display device according to an exemplary embodiment of the inventive concept.

Figure 9 is a cross-sectional view of Figure 8 taken along line IX-IX.

Figure 10 is a cross-sectional view showing an exemplary variation of the exemplary embodiment of Figure 9.

11 is a plan view of a plurality of pixels in a liquid crystal display device according to an exemplary embodiment of the inventive concept.

Fig. 12 is a cross-sectional view of Fig. 11 taken along line XII-XII.

Figure 13 is a cross-sectional view of Figure 11 taken along line XIII-XIII.

Figure 14 is a plan view of a plurality of pixels in an organic light emitting display device according to an exemplary embodiment of the inventive concept.

Figure 15 is a cross-sectional view of Figure 14 taken along line XV-XV.

Claims (29)

A photosensitive resin composition comprising: a nanometer fluorescent powder, a photopolymerization initiator, a photopolymerizable compound, an antioxidant, and a solvent, wherein the antioxidant comprises a phenol, a phosphorus, and a sulfur compound One or more of them. The photosensitive resin composition according to claim 1, wherein the nano fluorescent powder comprises at least one of a quantum dot and an inorganic phosphor. The photosensitive resin composition according to claim 2, wherein: the antioxidant of the phenol comprises 2,6-di-tert-butyl-p-cresol, 2,6-diphenyl-4-octadecane Nonyloxyphenol, stearyl (3,5-di-tert-butyl-4-hydroxyphenyl)propionate, distearyl (3,5-di-tert-butyl-4-hydroxyphenyl) phosphate , thirteen-based, 3,5-di-tert-butyl-4-hydroxybenzyl thioacetate, thiodiethylene bis[(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] , 4,4'-thiobis(6-tert-butylm-cresol), 2-octylthio-4,6-bis(3,5-di-tert-butyl-4-hydroxyphenyl)-s -trinitrogen [mouth], 2,2'-methylenebis(4-methyl-6-tert-butylphenol), bis[3,3-bis(4-hydroxy-3-tert-butylphenyl) ) butyrate] ethylene glycol ester, 4,4'-butylene bis(2,6-di-tert-butylphenol), 4,4'-butylene bis(6-tert-butyl-3-methylphenol ), 2,2'-ethylenebis(4,6-di-tert-butylphenol), 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane , bis[2-tert-butyl-4-methyl-6-(2-hydroxy-3-tert-butyl-5-methylbenzyl)phenyl]terephthalate, 1,3,5- Tris(2,6-dimethyl-3-hydroxy-4-tert-butylbenzyl)isocyanurate, 1,3,5- (3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4, 6-trimethylbenzene, 1,3,5-tris[(3,5-di-tert-butyl-4-hydroxyphenyl)propenyloxyethyl]isocyanurate, tetrakis[methylene- 3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionate]methane, 2-tert-butyl-4-methyl-6-(2-propenyloxy-3-lan Butyl-5-methylbenzyl)phenol, 3,9-bis[2-(3-tert-butyl-4-hydroxy-5-methylhydroxyhydrocinnamyloxy)-1,1-dimethyl Ethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane, triethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propane At least one of an acid ester] and a tocopherol. The photosensitive resin composition according to claim 2, wherein: the phosphorus-based antioxidant comprises triphenyl phosphite, tris(2,4-di-tert-butylphenyl) phosphite, and tri ( 2,5-di-tert-butylphenyl)phosphite, tris(nonylphenyl)phosphite, tris(didecylphenyl)phosphite, tris(mono,dihydrodecylphenyl) Phosphite, diphenyl phosphite, 2,2'-methylenebis(4,6-di-tert-butylphenyl)octyl phosphite, diphenylphosphonium phosphite, diphenyl octyl a phosphite, bis(nonylphenyl)neopentanol diphosphite, phenyl diisodecyl phosphite, tributyl phosphite, tris(2-ethylhexyl) phosphite, Tridecyl phosphite, trilaurylphosphite, dibutyl phosphite, dilauryl phosphite, trilauryl trithiophosphite, bis(neopentyl glycol) • 1,4-cyclohexane Alkyl dimethyl diphosphite, bis(2,4-di-tert-butylphenyl)neopentitol diphosphite, bis(2,5-di-tert-butylphenyl)neopentanol Phosphate ester, bis(2,6-di-tert-butyl-4-methylphenyl)neopentitol diphosphite, bis(2,4-diisopropyl) Phenyl phenyl) pentaerythritol diphosphite, distearyl decyl neopentyl glycol diphosphite, tetra (C12-15 mixed alkyl)-4,4'-isopropylidene diphenyl Phosphate, bis[2,2'-methylenebis(4,6-dipentylphenyl)]-isopropylidene diphenyl phosphite, tetra-tridecyl 4,4'-butylene Bis(2-tert-butyl-5-methylphenol) diphosphite, hexakis(tridecyl)•1,1,3-tris(2-methyl-5-tert-butyl-4-hydroxyphenyl) Butane • Triphosphite, tetrakis(2,4-di-tert-butylphenyl)-stranded diphenyl diphosphite, tris(2-[(2,4,7,9-tetra-tert-butyldiphenyl) And [d,f][1,3,2]dioxaphospholene-6-yl)oxy]ethyl)amine, 9,10-dihydro-9-oxa-10-phosphonium Phenanthrene-10-oxide, tris(2-[(2,4,8,10-tetra-tert-butyl-dibenzo[d,f][1,3,2]dioxaphospholene) -6-yl)oxy]ethyl)amine, 2-(1,1-dimethylethyl)-6-methyl-4-[3-[[2,4,8,10-tetra(1, 1-dimethylethyl)diphenyl[d,f][1,3,2]dioxaphospholene-6-yl)oxy]propyl]phenol 2-butyl-2-ethyl At least one of propylene glycol and 2,4,6-tri-tert-butylphenol monophosphite. The photosensitive resin composition according to claim 2, wherein the antioxidant of the sulfur comprises at least at least a dialkylthiodipropionate and a β-alkylmercaptopropionate of a polyalcohol. One. The photosensitive resin composition according to claim 2, wherein the antioxidant is contained in an amount of from 1 to 5 wt% based on the total weight of the solid of the photosensitive resin composition. The photosensitive resin composition according to claim 2, wherein: the quantum dot comprises a group II-VI compound, a group III-V compound, a group III-VI compound, a group IV-VI compound, and II-III- One or more of a group V element, a group II-III-VI compound, a group IV element, and a group IV compound, and the quantum dot has a core-shell structure comprising a core and a shell covering the core. The photosensitive resin composition according to claim 7, wherein: the core comprises CdSe, CdS, ZnS, ZnSe, CdTe, CdSeTe, CdZnS, PbSe, AgInZnS, ZnTe, CdSeS, PbS, PbTe, HgS, HgSe At least one of HgTe, GaN, GaP, GaAs, InP, InZnP, InGaP, InGaN, InAs, and ZnO, and the shell comprises CdSe, ZnSe, ZnS, ZnTe, CdTe, PbS, SrSe, CdO, CdS, ZnO, InP At least one of InS, GaP, GaN, GaO, InZnP, InGaP, InGaN, InZnSCdSe, and HgSe. The photosensitive resin composition according to claim 2, wherein: the inorganic phosphor comprises one of garnet, citrate, sulfide, oxide, nitrogen oxide, nitride, and aluminate. Or a variety. The photosensitive resin composition according to claim 9, wherein: the inorganic phosphor comprises Y3Al5O12:Ce3+ (YAG:Ce), Tb3Al5O12:Ce3+ (TAG:Ce), (Sr,Ba,Ca)2SiO4: Eu2+, (Sr, Ba, Ca, Mg, Zn) 2Si (OD) 4: Eu2+ D = F, Cl, S, N, Br, Ba2MgSi2O7: Eu2+, Ba2SiO4: Eu2+, Ca3(Sc, Mg)2Si3O12: Ce3+, (Ca,Sr)S: Eu2+, (Sr, Ca)Ga2S4: Eu2+, SrSi2O2N2: Eu2+, SiAlON: Ce3+, β-SiAlON: Eu2+, Ca-α-SiAlON: Eu2+, Ba3Si6O12N2: Eu2+, CaAlSiN3: Eu2+, (Sr , Ca) AlSiN3: at least one of Eu2+, Sr2Si5N8: Eu2+, (Sr, Ba)Al2O4: Eu2+, (Mg, Sr)Al2O4: Eu2+, and BaMg2Al16O27: Eu2+. The photosensitive resin composition according to claim 2, which further comprises a dispersing agent. The photosensitive resin composition according to claim 11, which further comprises a light scatterer. The photosensitive resin composition according to claim 12, wherein the light scattering material comprises at least one of TiO 2 , Al 2 O 3 and SiO 2 . A display device comprising a photosensitive resin composition, comprising: a lower substrate; a thin film transistor provided on the lower substrate; a pixel electrode connected to the thin film transistor; an upper substrate facing the lower substrate; a color filter is provided between the lower substrate and the upper substrate, wherein the color filter comprises a nano-fluorescent powder and an antioxidant, and the antioxidant comprises phenol, phosphorus and sulfur compounds One of them. The display device of claim 14, wherein the nano-fluorescent powder comprises at least one of a quantum dot and an inorganic phosphor. The display device according to claim 15, which contains the antioxidant in an amount of 1 to 5 wt% based on the total weight of the solid of the photosensitive resin composition. The display device of claim 15, wherein: the quantum dot comprises a II-VI compound, a III-V compound, a III-VI compound, an IV-VI compound, a II-III-V element And one or more of a Group II-III-VI compound, a Group IV element, and a Group IV compound, and the quantum dot has a core-shell structure comprising a core and a shell covering the core. The display device of claim 15, wherein: the inorganic phosphor comprises one or more of garnet, citrate, sulfide, oxide, nitrogen oxide, nitride, and aluminate. The display device according to claim 15, wherein the photosensitive resin composition further comprises a dispersing agent. The display device according to claim 19, wherein the photosensitive resin composition further comprises a light scatterer. A color conversion panel comprising: a first substrate; a plurality of color conversion layers and a transmission layer provided on the first substrate; and a light blocking element provided adjacent to the plurality of color conversion layers Between the color conversion layers, and between the color conversion layer and the transmission layer in the plurality of color conversion layers, wherein the color conversion layer comprises a nanometer phosphor and an antioxidant, and the antioxidant comprises It is one selected from the group consisting of phenols, phosphorus and sulfur compounds. The color conversion panel of claim 21, wherein the nano-fluorescent powder comprises at least one of a quantum dot and an inorganic phosphor. The color conversion panel of claim 22, wherein the antioxidant is contained in an amount of from 1 to 5 wt% based on the total weight of the solid of the color conversion layer. The color conversion panel of claim 22, wherein the color conversion layer further comprises at least one of a dispersant and a light scatter. A display device comprising: a display panel; and a color conversion panel provided on the display panel, wherein the color conversion panel comprises: a first substrate; a plurality of color conversion layers and a transmissive layer, provided in the On one side of a substrate facing the display panel; and a light blocking element provided between each of the plurality of color conversion layers and between the plurality of color conversion layers Between a color conversion layer and the transmission layer, wherein the color conversion layer comprises a nano-fluorescent powder and an antioxidant, and the antioxidant comprises one selected from the group consisting of phenols, phosphorus and sulfur compounds. The display device of claim 25, wherein: the display panel comprises: a lower substrate; a thin film transistor provided on the lower substrate; and a pixel electrode connected to the thin film transistor. The display device of claim 26, further comprising: an upper substrate facing the lower substrate and spaced apart from the lower substrate; and a liquid crystal layer provided on the lower substrate and the upper substrate between. The display device of claim 26, further comprising: a top layer facing the pixel electrode; and a liquid crystal layer provided in the plurality of microcavities between the pixel electrode and the top layer. The display device of claim 26, further comprising: an organic light emitting element provided on the pixel electrode; and a common electrode provided on the organic light emitting element.