CN117157566A - Polarizing laminate and image display device comprising same - Google Patents
Polarizing laminate and image display device comprising same Download PDFInfo
- Publication number
- CN117157566A CN117157566A CN202280027242.2A CN202280027242A CN117157566A CN 117157566 A CN117157566 A CN 117157566A CN 202280027242 A CN202280027242 A CN 202280027242A CN 117157566 A CN117157566 A CN 117157566A
- Authority
- CN
- China
- Prior art keywords
- layer
- polarizing laminate
- surface treatment
- image display
- display device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010410 layer Substances 0.000 claims abstract description 95
- 239000002335 surface treatment layer Substances 0.000 claims abstract description 75
- 239000012790 adhesive layer Substances 0.000 claims abstract description 18
- 238000002310 reflectometry Methods 0.000 claims abstract description 8
- 239000010954 inorganic particle Substances 0.000 claims description 45
- -1 acrylate compound Chemical class 0.000 claims description 36
- 239000000758 substrate Substances 0.000 claims description 29
- 239000002245 particle Substances 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 20
- 238000004026 adhesive bonding Methods 0.000 claims description 10
- 239000008199 coating composition Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 14
- 229920005989 resin Polymers 0.000 description 59
- 239000011347 resin Substances 0.000 description 59
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 27
- 239000004372 Polyvinyl alcohol Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 17
- 229920002451 polyvinyl alcohol Polymers 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 150000001875 compounds Chemical class 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 238000004132 cross linking Methods 0.000 description 10
- 238000004043 dyeing Methods 0.000 description 10
- 238000005470 impregnation Methods 0.000 description 9
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 9
- 238000011156 evaluation Methods 0.000 description 8
- 239000000178 monomer Substances 0.000 description 8
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000002105 nanoparticle Substances 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- 229920002284 Cellulose triacetate Polymers 0.000 description 6
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 6
- 229920002678 cellulose Polymers 0.000 description 6
- 239000001913 cellulose Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 6
- 239000004925 Acrylic resin Substances 0.000 description 5
- 239000004695 Polyether sulfone Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000004793 Polystyrene Substances 0.000 description 5
- 229920006393 polyether sulfone Polymers 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 229920002223 polystyrene Polymers 0.000 description 5
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 229920000178 Acrylic resin Polymers 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 229920001893 acrylonitrile styrene Polymers 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 150000001925 cycloalkenes Chemical class 0.000 description 3
- 229920005994 diacetyl cellulose Polymers 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 229920001483 poly(ethyl methacrylate) polymer Polymers 0.000 description 3
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 3
- 229920005668 polycarbonate resin Polymers 0.000 description 3
- 239000004431 polycarbonate resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 239000011112 polyethylene naphthalate Substances 0.000 description 3
- 239000002952 polymeric resin Substances 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 229920005672 polyolefin resin Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000011118 polyvinyl acetate Substances 0.000 description 3
- 229920002689 polyvinyl acetate Polymers 0.000 description 3
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- 150000003457 sulfones Chemical class 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 2
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 2
- CBECDWUDYQOTSW-UHFFFAOYSA-N 2-ethylbut-3-enal Chemical compound CCC(C=C)C=O CBECDWUDYQOTSW-UHFFFAOYSA-N 0.000 description 2
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 2
- 150000001241 acetals Chemical class 0.000 description 2
- 229940081735 acetylcellulose Drugs 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 239000012461 cellulose resin Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000007602 hot air drying Methods 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- 229920001477 hydrophilic polymer Polymers 0.000 description 2
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 2
- 150000003949 imides Chemical class 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Chemical compound [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 2
- JTHNLKXLWOXOQK-UHFFFAOYSA-N n-propyl vinyl ketone Natural products CCCC(=O)C=C JTHNLKXLWOXOQK-UHFFFAOYSA-N 0.000 description 2
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 2
- 125000003518 norbornenyl group Chemical group C12(C=CC(CC1)C2)* 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- TZMFJUDUGYTVRY-UHFFFAOYSA-N pentane-2,3-dione Chemical group CCC(=O)C(C)=O TZMFJUDUGYTVRY-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229920001643 poly(ether ketone) Polymers 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000005033 polyvinylidene chloride Substances 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- UAYWVJHJZHQCIE-UHFFFAOYSA-L zinc iodide Chemical compound I[Zn]I UAYWVJHJZHQCIE-UHFFFAOYSA-L 0.000 description 2
- XKSUVRWJZCEYQQ-UHFFFAOYSA-N 1,1-dimethoxyethylbenzene Chemical compound COC(C)(OC)C1=CC=CC=C1 XKSUVRWJZCEYQQ-UHFFFAOYSA-N 0.000 description 1
- KWVGIHKZDCUPEU-UHFFFAOYSA-N 2,2-dimethoxy-2-phenylacetophenone Chemical compound C=1C=CC=CC=1C(OC)(OC)C(=O)C1=CC=CC=C1 KWVGIHKZDCUPEU-UHFFFAOYSA-N 0.000 description 1
- XOGPDSATLSAZEK-UHFFFAOYSA-N 2-Aminoanthraquinone Chemical compound C1=CC=C2C(=O)C3=CC(N)=CC=C3C(=O)C2=C1 XOGPDSATLSAZEK-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- WMYINDVYGQKYMI-UHFFFAOYSA-N 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol Chemical compound CCC(CO)(CO)COCC(CC)(CO)CO WMYINDVYGQKYMI-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- YJQMXVDKXSQCDI-UHFFFAOYSA-N 2-ethylthioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC(CC)=CC=C3SC2=C1 YJQMXVDKXSQCDI-UHFFFAOYSA-N 0.000 description 1
- FZIPCQLKPTZZIM-UHFFFAOYSA-N 2-oxidanylpropane-1,2,3-tricarboxylic acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O.OC(=O)CC(O)(C(O)=O)CC(O)=O FZIPCQLKPTZZIM-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-M Butyrate Chemical compound CCCC([O-])=O FERIUCNNQQJTOY-UHFFFAOYSA-M 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Natural products CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- UNMYWSMUMWPJLR-UHFFFAOYSA-L Calcium iodide Chemical compound [Ca+2].[I-].[I-] UNMYWSMUMWPJLR-UHFFFAOYSA-L 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 229920001890 Novodur Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004990 Smectic liquid crystal Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 244000028419 Styrax benzoin Species 0.000 description 1
- 235000000126 Styrax benzoin Nutrition 0.000 description 1
- 235000008411 Sumatra benzointree Nutrition 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- CECABOMBVQNBEC-UHFFFAOYSA-K aluminium iodide Chemical compound I[Al](I)I CECABOMBVQNBEC-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- SGUXGJPBTNFBAD-UHFFFAOYSA-L barium iodide Chemical compound [I-].[I-].[Ba+2] SGUXGJPBTNFBAD-UHFFFAOYSA-L 0.000 description 1
- 229910001638 barium iodide Inorganic materials 0.000 description 1
- 229940075444 barium iodide Drugs 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 235000019437 butane-1,3-diol Nutrition 0.000 description 1
- 125000004063 butyryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910001640 calcium iodide Inorganic materials 0.000 description 1
- 229940046413 calcium iodide Drugs 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- GBRBMTNGQBKBQE-UHFFFAOYSA-L copper;diiodide Chemical compound I[Cu]I GBRBMTNGQBKBQE-UHFFFAOYSA-L 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- RKWJJKZGJHLOHV-UHFFFAOYSA-N ethane-1,2-diol;propan-2-ol Chemical compound CC(C)O.OCCO RKWJJKZGJHLOHV-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- RMBPEFMHABBEKP-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2C3=C[CH]C=CC3=CC2=C1 RMBPEFMHABBEKP-UHFFFAOYSA-N 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000004694 iodide salts Chemical class 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- FSPSELPMWGWDRY-UHFFFAOYSA-N m-Methylacetophenone Chemical compound CC(=O)C1=CC=CC(C)=C1 FSPSELPMWGWDRY-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N o-biphenylenemethane Natural products C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- LYXOWKPVTCPORE-UHFFFAOYSA-N phenyl-(4-phenylphenyl)methanone Chemical compound C=1C=C(C=2C=CC=CC=2)C=CC=1C(=O)C1=CC=CC=C1 LYXOWKPVTCPORE-UHFFFAOYSA-N 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 150000004714 phosphonium salts Chemical class 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000233 poly(alkylene oxides) Chemical class 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 150000004291 polyenes Chemical class 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- AJENTGJUWPNAEZ-UHFFFAOYSA-N propane-1,2-diol;propan-2-ol Chemical compound CC(C)O.CC(O)CO AJENTGJUWPNAEZ-UHFFFAOYSA-N 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- QPBYLOWPSRZOFX-UHFFFAOYSA-J tin(iv) iodide Chemical compound I[Sn](I)(I)I QPBYLOWPSRZOFX-UHFFFAOYSA-J 0.000 description 1
- NLLZTRMHNHVXJJ-UHFFFAOYSA-J titanium tetraiodide Chemical compound I[Ti](I)(I)I NLLZTRMHNHVXJJ-UHFFFAOYSA-J 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/111—Anti-reflection coatings using layers comprising organic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/12—Optical coatings produced by application to, or surface treatment of, optical elements by surface treatment, e.g. by irradiation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding elements
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Surface Treatment Of Optical Elements (AREA)
- Led Device Packages (AREA)
Abstract
The present specification discloses a polarizing laminate comprising: a polarizer; a surface treatment layer formed on one surface of the polarizer and having an internal haze value of 20% to 40% and a reflectivity of 3.5% or less; a phase retardation layer formed on the other surface of the polarizer; and an adhesive layer formed on the surface of the surface treatment layer. The seam of the image display device can be prevented from being visually recognized, and the optical characteristics of the image display device can be improved.
Description
Technical Field
The present invention relates to a polarizing laminate and an image display device including the same. More particularly, the present invention relates to a polarizing laminate including a polarizer and a functional film, and an image display device including the same.
Background
Recently, various image display devices such as a liquid crystal display device (LCD), an Electroluminescence (EL) display device, a plasma display device (PDP), and a field emission display device (FED) have been commercially available and used. Due to the widespread use of image display devices, active research has been initiated to improve the functions of image display devices. For example, research into polarizing laminates for image display devices has been started.
Generally, a polarizing laminate includes an iodine-based polyvinyl alcohol (PVA) polarizer and a protective film for protecting one or both sides of the polarizer. As an example of the structure of the polarizing laminate, a protective film may be laminated on one surface of the polarizer and a protective film, an adhesive layer, a release film, and the like may be laminated in this order on the other surface.
In addition, the image display device may further include a surface treatment layer in addition to the polarizing laminate to improve display quality. The surface treatment layer may further include an antiglare layer, a low reflection layer, a hard coat film, or the like.
If the thickness of the surface treatment layer is increased in order to increase the hardness, the surface treatment layer may be caused to peel off from the substrate. Further, physical properties such as scratch resistance or impact resistance may be lacking. Furthermore, the existing surface treatment layer provides insufficient optical performance, and thus further research is required to realize a large area of the image display device.
For example, korean patent application laid-open No. 10-2013-007467 discloses a plastic substrate including a hard coating layer. However, since the optical performance is insufficient, a countermeasure to solve the above-described problem cannot be provided.
Disclosure of Invention
Technical problem
An object of the present invention is to provide a polarizing laminate having improved optical properties.
An object of the present invention is to provide an image display device having improved optical performance.
Technical proposal
1. A polarizing laminate comprising: a polarizer; a surface treatment layer formed on one surface of the polarizer and having an internal haze value of 20% to 40% and a reflectivity of 3.5% or less; a phase retardation layer formed on the other surface of the polarizer; and an adhesive layer formed on a surface of the surface treatment layer.
2. The polarizing laminate according to 1, further comprising a protective film formed on a surface of the adhesive layer.
3. The polarizing laminate according to 1 above, wherein the surface-treated layer comprises a hard coat film.
4. The polarizing laminate according to 3 above, wherein the surface-treated layer is formed of a coating composition containing a (meth) acrylate compound.
5. The polarizing laminate according to 4 above, wherein the surface-treated layer further comprises inorganic particles.
6. The polarizing laminate according to 4 above, wherein the average particle diameter of the inorganic particles is 100nm to 500nm.
7. The polarizing laminate according to 1 above, wherein the thickness of the surface-treated layer is 1 μm to 20 μm.
8. An image display device comprising a display panel, the polarizing laminate of 1 above disposed on the display panel, and a substrate disposed on the polarizing laminate.
9. The image display device according to the above 8, wherein the polarizing laminate is laminated such that the phase retardation layer, the polarizer, the surface treatment layer, and the adhesive layer are arranged in this order from the display panel.
10. The image display device of 8, wherein the display panel comprises a micro Light Emitting Diode (LED) module.
11. The image display device of 10 above, wherein the micro LED module comprises an array incorporating a plurality of micro LED chips.
Effects of the invention
According to the embodiments of the present invention, it is possible to provide a polarizing laminate formed by laminating a surface-treated layer having a predetermined haze value with a polarizer, a phase retardation layer, and an adhesive bonding layer. In addition, by using a surface treatment layer having a predetermined haze value, the optical characteristics of the image display device can be improved.
When the surface treatment layer according to the exemplary embodiment is included, the seam included in the display panel is not visually recognized, and thus brightness can be improved and vivid color sensation can be achieved.
In addition, since the polarizing laminate includes the surface treatment layer, color difference due to the joint can be suppressed. Thus, the area of the display panel can be easily enlarged, and the process cost required for the enlargement of the area of the image display device can be reduced.
When the exemplary image display device is used, the surface of the polarizing laminate is not exposed to the outside, and thus the lifetime of the polarizing laminate can be prolonged. In addition, by sealing the polarizing laminate, the optical characteristics of the polarizing laminate can be kept constant regardless of the conditions of use.
Drawings
Fig. 1 and 2 are schematic cross-sectional views illustrating a polarizing laminate according to an exemplary embodiment.
Fig. 3 is a schematic cross-sectional view of an image display apparatus including a polarizing laminate according to an exemplary embodiment.
Detailed Description
Embodiments of the present invention disclose a polarizing laminate including: a polarizer; a surface treatment layer formed on one surface of the polarizer and having an internal haze value of 20% to 40% and a reflectivity of 3.5% or less; a phase retardation layer formed on the other surface of the polarizer; and an adhesive layer formed on the surface of the surface treatment layer.
By using the polarizing laminate, it is possible to suppress the visibility of a seam on a display panel of an image display device and to suppress color difference due to the seam. In addition, the clarity of the image display device can be improved by the polarizing laminate. Each component will be described in more detail below.
In addition, in the description of the present specification, "arrangement" is a term used to cover terms such as "formed", "located (in)", "stacked" or "coated". In addition, "arrangement" is a term for describing the relative positions of the layers included in the exemplary embodiment and the comparative example, and thus is not intended to limit the manufacturing method of the layers. In addition, even if "stacked" is used instead of "arranged", the description as described above does not necessarily mean that a particular layer must be in contact with one surface of another layer in a "stacked" manner.
In addition, in the description of the present specification, "one surface" and "another surface" are used as relative concepts. For example, when "a surface" is an upper surface, the lower surface may be referred to as "another surface". Conversely, when "a surface" is a lower surface, the upper surface may be referred to as "another surface".
In addition, in the description of the present specification, descriptions such as "upper", "upper surface", "upper", "visual recognition side", "lower surface", "lower", "panel side", and the like can be understood with reference to the orientation of the drawings. For example, if a particular layer is arranged with one surface facing upward in the drawing, that surface may be referred to as the "view side", "upper surface", or "upper portion". In addition, the surface opposite to the surface, i.e., the other surface, may be referred to as "panel side", "lower surface", or "lower portion".
In addition, "upper", "upper surface" or "upper portion" may be used to refer to the location (i.e., the viewing side) viewed by the viewer. Thus, it will be appreciated that the viewer is generally located above and looking down. As a concept opposite to the viewer position, "lower", "lower surface" or "lower portion" may be used to refer to the position of the display panel (i.e., the panel side).
< surface treatment layer >
The surface treatment layer according to an exemplary embodiment may have an internal haze value of 20% to 40%. The Haze value is the degree of Haze that occurs when light is transmitted through a sample and represents the ratio of diffuse transmitted light (Diffuse Transmittance, td) divided by total transmitted light (Total Transmittance, tt). Diffuse transmitted light (Td) is the amount of scattered light in the light transmitted through the sample, and total transmitted light (Tt) is the amount of all light transmitted through the sample. The parallel transmitted light (Tp) is the amount of light transmitted without scattering in the transmitted light, and thus can be expressed as a value obtained by subtracting the diffuse transmitted light (Td) from the total transmitted light (Tt).
In addition, the internal haze value may represent a value obtained by subtracting the external haze value from the haze value. The external haze value may represent a haze value caused by external irregularities of the surface treatment layer. Thus, the internal haze value may represent a haze value caused by the composition of the surface treatment layer.
In an exemplary embodiment, an adhesive bonding layer may be formed on a surface of the surface treatment layer. Accordingly, haze caused by surface irregularities of the surface treatment layer can be suppressed, and visibility of a seam included in the display panel can be adjusted by adjusting an internal haze value of the surface treatment layer.
When the surface treatment layer satisfies the above-described internal haze value, a phenomenon in which a seam between display panels is visually recognized can be suppressed. If the internal haze value of the surface treatment layer is less than 20%, the seams between the display panels are visually recognized. If the internal haze value of the surface treatment layer exceeds 40%, there is a concern that the optical characteristics (e.g., sharpness) of the image display device are deteriorated due to excessive diffusion of light.
In addition, the reflectivity of the surface treatment layer may be preferably 3.5% or less. The reflectivity of the surface treatment layer may represent the internal reflectivity. Due to the decrease in internal reflectance, the sharpness and color reproducibility of the image display device can be improved.
In an exemplary embodiment, the surface treatment layer may include a polymer resin that ensures transparency. Examples of the polymer resin contained in the surface-treated layer may include at least one polymer resin selected from the group consisting of cycloolefin derivatives having cycloolefin monomer units such as norbornene or polycyclic norbornene, cellulose (diacetyl cellulose, triacetyl cellulose, acetyl cellulose butyrate, isobutyl cellulose, propionyl cellulose, butyryl cellulose, acetyl propionyl cellulose), ethylene vinyl acetate copolymer, polyester, polystyrene, polyamide, polyetherimide, polyacrylic acid, polyimide, polyethersulfone, polysulfone, polyethylene, polypropylene, polymethylpentene, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polyvinyl acetal, polyetherketone, polyetheretherketone, polyethersulfone, polymethyl methacrylate, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polycarbonate, polyurethane, and polyepoxide resin.
In addition, the surface treatment layer may include an unstretched film or a uniaxially or biaxially stretched film. In some exemplary embodiments, in order to improve transparency, heat resistance, or optical characteristics, a uniaxially or biaxially stretched polyester film, a cycloolefin derivative film, or a triacetyl cellulose film may be used as the surface treatment layer.
In addition, the surface treatment layer may be a hard coat film, an antistatic hard coat film, an antiglare coating, an antistatic antiglare coating, or a low reflection coating. Alternatively, the surface treatment layer may be a composite layer including a hard coat film, an antistatic hard coat film, an antiglare coating, an antistatic antiglare coating, or a low reflection coating.
In some exemplary embodiments, the hardcoat film may be obtained from an ultraviolet curable resin composition. In addition, the ultraviolet curable resin composition may contain a multifunctional (meth) acrylate, a photopolymerization initiator, and an organic solvent. (meth) acrylates include both acrylates and methacrylates.
In addition, in some exemplary embodiments, examples of the multifunctional (meth) acrylate may include dipentaerythritol hexa (meth) acrylate, dipentaerythritol penta (meth) acrylate, pentaerythritol tetra (meth) acrylate, ditrimethylolpropane tetra (meth) acrylate, trimethylolpropane tri (meth) acrylate, glycerol tri (meth) acrylate, tri (2-hydroxyethyl) isocyanurate tri (meth) acrylate, ethylene glycol di (meth) acrylate, propylene glycol (meth) acrylate, 1, 3-butanediol di (meth) acrylate, 1, 4-butanediol di (meth) acrylate, 1, 6-hexanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, dipropylene glycol di (meth) acrylate, di (2-hydroxyethyl) isocyanurate di (meth) acrylate, hydroxyethyl (meth) acrylate, hydroxybutyl (meth) acrylate, isooctyl (meth) acrylate, isostearyl (meth) acrylate, tetrahydrofurfuryl (meth) acrylate and phenoxyethyl (meth) acrylate.
In addition, in some exemplary embodiments, examples of the photopolymerization initiator may include diphenyl ketone benzyl dimethyl ketal, acetophenone dimethyl ketal, p-dimethylamine benzoate, 2-hydroxy-2-methyl-1-phenyl-1-one, 4-hydroxycyclophenyl ketone, dimethoxy-2-phenylacetophenone, anthraquinone, 2-aminoanthraquinone, fluorene, triphenylamine, carbazole, benzophenone, p-phenylbenzophenone, 3-methylacetophenone, 4-dimethoxyacetophenone, 4-diaminobenzophenone, benzoin, and 2-ethylthioxanthone.
In addition, the organic solvent may be compatible with the multifunctional (meth) acrylate. Examples of the organic solvent may include methanol, ethanol, isopropanol, propanol, butanol, isobutanol, ethylcellosolve, methylcellosolve, butyl acetate, dimethylformamide, diacetone alcohol, ethylene glycol isopropanol, propylene glycol isopropanol, methyl ethyl ketone, and N-methylpyrrolidone.
In addition, in some exemplary embodiments, the hard coat film may be an antiglare coating to which antiglare properties are imparted. In order to impart antiglare properties to the hard coat film, inorganic particles such as silica or polymer particles such as polymethyl methacrylate (PMMA) may be used. In order to improve dispersibility, the polymer particles may be monodisperse particles having an average particle diameter of 1 μm to 20 μm, polydisperse particles, or a mixture of monodisperse particles and polydisperse particles.
In addition, the surface treatment layer may further contain inorganic particles. The inorganic particles may be silica-based particles. In addition, the silica-based particles may comprise hollow silica, mesoporous silica, and the like. The inorganic particles comprising hollow or mesoporous can further increase the internal haze of the surface treatment layer compared to inorganic particles without hollow or mesoporous.
In some exemplary embodiments, the average particle size of the silica-based particles may be nano-sized. Nanoparticles refer to particles having an average particle size of nanometer size. By incorporating nano-sized inorganic particles, the internal haze of the surface treatment layer can be increased. In an exemplary embodiment, the larger the average particle diameter of the nanoparticles, the greater the internal haze of the surface treatment layer.
In some exemplary embodiments, in order to control the internal haze value of the surface treatment layer within the above range, the average particle diameter of the inorganic particles is preferably 100nm to 500nm, more preferably 200nm to 400nm, and most preferably 250nm to 350nm. For example, when the average particle diameter of the inorganic particles is less than 100nm, the increase in the internal haze value caused by the addition of the inorganic particles is small. When the average particle diameter of the inorganic particles exceeds 500nm, mechanical properties and the like of the surface treatment layer may be reduced due to the addition of the inorganic particles, and interface bonding force with the polarizer may be weakened.
Additionally, in some exemplary embodiments, the inorganic particles may have any geometry. For example, the inorganic particles may be isotropic or anisotropic. Isotropy means that the aspect ratio of the inorganic particles is 1, and anisotropy means that the aspect ratio of the inorganic particles is not 1. The isotropic inorganic particles are suitable for imparting uniform mechanical and physical properties, and the anisotropic inorganic particles are suitable for increasing the internal haze value.
Thus, in some exemplary embodiments, to improve the mechanical and optical properties of the surface treatment layer, only isotropic inorganic particles may be included in the surface treatment layer, only anisotropic inorganic particles may be included in the surface treatment layer, or both may be included in the surface treatment layer. In addition, in order to improve the mechanical and optical properties of the surface-treated layer, only hollow or mesoporous inorganic particles may be contained in the surface-treated layer, only filled (solid) inorganic particles may be contained in the surface-treated layer, or both may be contained in the surface-treated layer.
In addition, since the surface treatment layer contains inorganic particles, the internal haze value can be easily adjusted and uniformity of the internal haze value can be improved. For example, even if the composition or thickness of the resin contained in the surface-treated layer is different, the desired internal haze value can be made uniform by adjusting the average diameter, the presence or absence of hollowness, the content, and the like of the inorganic particles.
In addition, in some exemplary embodiments, in order to uniformly disperse the inorganic particles within the surface treatment layer, a binder resin may be used. The binder resin may be a polyvinyl alcohol-based resin, and in this case, can be made excellent in affinity with the surface-treated layer and the inorganic particles.
In addition, in some exemplary embodiments, in order to provide antistatic properties to the hard coat film or the antiglare coating film, a conductive material may be further used. The antistatic properties may be provided to the coating by including a conductive material in the coating composition. Examples of conductive materials may include: cationic surfactants such as quaternary ammonium salts, phosphonium salts, sulfonium salts, and the like; anionic surfactants such as carboxylates, sulfonates, sulfates, phosphates, and phosphites; cationic surfactants such as sulfobetaines, alkyl betaines, alkyl imidazole betaines, and the like; nonionic surfactants such as polyol derivatives, sorbitan fatty acid monoesters and diesters, and polyalkylene oxide derivatives.
Further, examples of the conductive material may include a permanent antistatic agent obtained by mixing a hydrophilic polymer such as polyethyl methacrylate and an acrylic resin, a conductive filler such as acetylene black and alumina, polypyrrole, polythiophene, and polyaniline.
Additionally, in some exemplary embodiments, additives may be used in order to further improve the mechanical properties of the surface treatment layer. To increase the photopolymerization efficiency, a photopolymerization initiator aid may be used. In addition, fillers, leveling agents, defoamers, ultraviolet absorbers, antioxidants, and the like may be added.
In an exemplary embodiment, a polarizer may be laminated on one surface of the surface treatment layer. In some exemplary embodiments, an adhesive bonding layer may be laminated on the other surface of the surface treatment layer. Thus, in some exemplary embodiments, the adhesive bonding layer, the surface treatment layer, and the polarizer may be sequentially laminated.
In addition, in an exemplary embodiment, the thickness of the surface treatment layer may be 0.1 μm to 200 μm, preferably 1 μm to 50 μm, and more preferably 1 μm to 20 μm. In the above numerical range, the mechanical strength of the surface treatment layer can be improved, and the surface treatment layer can be easily increased in area. For example, when the thickness of the surface treatment layer is less than 1 μm, the mechanical strength of the surface treatment layer may be insufficient, and when the thickness of the surface treatment layer exceeds 20 μm, the process cost required for the large-area formation of the surface treatment layer may be excessive.
< polarizer >
The polarizer may be formed by adsorbing and orienting a dichroic dye on a stretchable film. The stretchable film may comprise a resin that may be dyed with a dichroic material. For example, the stretchable film may comprise: hydrophilic polymers such as polyethylene terephthalate resin, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, cellulose resin, polyvinyl alcohol resin, partially saponified resin thereof, and the like; or a polyene oriented resin such as a dehydrated polyvinyl alcohol resin, a desalted polyvinyl alcohol resin, or the like.
Preferably, a polyvinyl alcohol-based resin may be used because it ensures uniformity of in-plane polarization degree and has excellent dyeing affinity for a dichroic material.
For example, the polarizer may include a polyvinyl alcohol-based resin obtained by saponifying a polyvinyl acetate-based resin. Examples of the polyvinyl acetate resin may include polyvinyl acetate, which is a homopolymer of vinyl acetate, or a copolymer of vinyl acetate and a monomer copolymerizable therewith. Examples of the monomer copolymerizable with vinyl acetate may include unsaturated carboxylic acid-based monomers, unsaturated sulfonic acid-based monomers, olefin-based monomers, vinyl ether-based monomers, and acrylamide monomers having an ammonium group.
The polyvinyl alcohol resin may be modified. For example, polyvinyl formal or polyvinyl acetal modified by adding an aldehyde compound can be used.
The polarizer may be obtained by processing a polyvinyl alcohol-based resin according to a method including steps such as swelling, dyeing, crosslinking, stretching, washing, and drying. The manufacturing method of the polarizer may be subdivided according to a stretching method. For example, the stretching method may include a dry stretching method, a wet stretching method, or a hybrid stretching method combining the two stretching methods.
Hereinafter, a method of manufacturing a polarizer is described on the premise that a polyvinyl alcohol-based resin is processed by a wet stretching method, but the manufacturing method is not limited to the examples.
The processes such as the swelling step, dyeing step, crosslinking step, stretching step, washing step, etc. may be performed in a state where the film containing the polyvinyl alcohol-based resin is immersed in a constant temperature water bath. The order and the number of repetitions of each process are not particularly limited, and each process may be performed simultaneously or sequentially, and some processes may be omitted as needed.
The swelling step may be a step of removing impurities such as dust or an anti-blocking agent deposited on the surface of the film and for improving the stretching efficiency and dyeing uniformity of the film. The dyeing step is a step of adsorbing the dichroic material onto the film. In order to increase the dyeing efficiency, iodide may be used as a dyeing auxiliary. Examples of iodides include potassium iodide, lithium iodide, sodium iodide, zinc iodide, aluminum iodide, lead iodide, copper iodide, barium iodide, calcium iodide, tin iodide, and titanium iodide.
A crosslinking step may be performed to chemically fix the dichroic material adsorbed on the film. For example, the crosslinking reaction of the dichroic material may be initiated by immersing the film physically adsorbed with the dichroic material in a crosslinking aqueous solution containing a metal acetate. The drying step may be a step of drying the washed film and for further improving the orientation of the dichroic material to improve the optical characteristics of the polarizer.
In an exemplary embodiment, the polarizer may be laminated on one surface of the surface treatment layer. In addition, a phase retardation layer may be laminated on the other surface of the polarizer. Accordingly, in an exemplary embodiment, the surface treatment layer, the polarizer, and the phase retardation layer may be sequentially laminated.
< phase delay layer >
In an exemplary embodiment, the phase retardation layer may be a λ/4 retardation film (1/4 wavelength retardation film). The lambda/4 retardation film can be obtained by orienting the polymer film in a uniaxial direction, a biaxial direction or other suitable method. The lambda/4 phase difference film can suppress reflected light.
Examples of the polymer compound contained in the phase retardation layer may include polycarbonate-based compounds, polyester-based compounds, polysulfone-based compounds, polyether sulfone-based compounds, polystyrene-based compounds, polyolefin-based compounds, polyvinyl alcohol-based compounds, cellulose acetate-based compounds, polymethyl methacrylate-based compounds, polyvinyl chloride-based compounds, polyacrylate-polyvinyl chloride-based compounds, polyamide-polyvinyl chloride-based compounds. When the polymer compound is selected, transparency can be used as an index.
In addition, in an exemplary embodiment, the phase retardation layer may include a nematic liquid crystal material or a smectic liquid crystal material that can be polymerized by in situ polymerization, and may preferably include a nematic liquid crystal material. Additionally, in an exemplary embodiment, the phase retardation layer may provide reverse wavelength dispersion and may have a variety of phase difference values.
Additionally, in some exemplary embodiments, the phase delay layer may also include a positive C plate layer. In addition, in order to set the thickness direction retardation (Rth) value of the polarizing laminate to an appropriate range, the retardation value of the positive C plate layer may be adjusted to a specified range. In some exemplary embodiments, when the thickness direction phase difference value of the λ/4 phase difference film is 40nm to 65nm, the thickness direction phase difference value of the positive C plate layer is-85 nm to-60 nm. In addition, if the thickness direction phase difference value of the lambda/4 phase difference film is 65nm to 80nm, the thickness direction phase difference value of the positive C plate layer is-100 nm to-85 nm. In addition, if the thickness direction phase difference value of the lambda/4 phase difference film is 80nm to 100nm, the thickness direction phase difference value of the positive C plate layer is-120 nm to-100 nm. In addition, if the thickness direction phase difference value of the lambda/4 phase difference film is 100nm to 180nm, the thickness direction phase difference value of the positive C plate layer is-200 nm to-120 nm.
In an exemplary embodiment, a polarizer may be laminated on one surface of the phase retarder layer, and a protective film may be disposed on the other surface of the phase retarder layer. For example, a polarizer, a phase retardation layer, and a protective film may be sequentially disposed.
< adhesive bonding layer >
In an exemplary embodiment, the adhesive layer may be formed using a Pressure Sensitive Adhesive (PSA) or an Optically Clear Adhesive (OCA).
For example, the pressure sensitive adhesive or optically clear adhesive may be obtained from an adhesive composition containing an acrylic copolymer and a crosslinking agent, or may be obtained from an adhesive composition containing a urethane (meth) acrylate resin, (meth) acrylate monomer and a photoinitiator.
In an exemplary embodiment, the adhesive layer may be disposed on one surface of the surface treatment layer. In addition, in some exemplary embodiments, a release layer may be laminated on the other surface of the adhesive layer. For example, a release layer, an adhesive bonding layer, and a surface treatment layer may be laminated in this order. In addition, the release layer may be removed before stacking the polarizing laminate.
Further, by laminating the adhesive layer on one surface of the surface treatment layer, haze caused by surface irregularities of the surface treatment layer can be suppressed. Therefore, the haze value of the surface treatment layer can be determined by the internal haze value, and can be more easily adjusted.
< protective film >
In some exemplary embodiments, a protective film may be laminated on one surface of the phase delay layer. In addition, the protective film may face the display panel.
In some exemplary embodiments, the resin contained in the protective film may be selected using transparency, mechanical strength, thermal stability, moisture resistance, isotropy, and the like of the protective film as indicators.
Examples of the resin contained in the protective film may include the following thermoplastic resins: polyester resins such as polyethylene terephthalate, polyethylene isophthalate, polybutylene terephthalate, and the like; cellulosic resins such as diacetyl cellulose and triacetyl cellulose; a polycarbonate resin; acrylic resins such as polymethyl (meth) acrylate, polyethyl (meth) acrylate, and the like; styrene resins such as polystyrene and acrylonitrile-styrene copolymer; polyolefin resins such as polyethylene, polypropylene, polyolefin having a cyclic or norbornene structure, ethylene propylene copolymer, and the like; vinyl chloride resin; polyamide resins such as nylon and aromatic polyamide; imide-based resins; polyether sulfone resins; sulfone resins; polyether ketone resin: polyphenylene sulfide resin; vinyl alcohol resin; vinylidene chloride resin; a vinyl butyral resin; allylated resins; a polyoxymethylene resin; an epoxy resin.
In addition, a film formed of a thermosetting resin such as (meth) acrylic, urethane, epoxy, or silicone, or an ultraviolet curable resin may be used as the protective film. In some exemplary embodiments, a cellulose-based film having a saponified surface may be used as the protective film because it is easy to improve polarization characteristics and durability.
< Release layer >
In some exemplary embodiments, a release layer may be laminated on one surface of the adhesive layer. In addition, the release layer may be oriented toward the substrate and removed prior to depositing the polarizing laminate.
In addition, in some exemplary embodiments, the release layer may be formed of a resin commonly used for polarizing laminates. For example, the release layer may be formed of: polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate and the like; polyimide-based resins; an acrylic resin; styrenic resins such as polystyrene and acrylonitrile-styrene; a polycarbonate resin; polylactic acid resin; a polyurethane resin; polyolefin resins such as polyethylene, polypropylene, ethylene-propylene copolymers, and the like; vinyl resins such as polyvinyl chloride, polyvinylidene chloride, and the like; a polyamide resin; sulfone resins; polyether-ether-ketone resin; allylated resins; or a mixture of the above resins.
< image display device >
The image display apparatus according to an exemplary embodiment includes: a display panel; a polarizing laminate disposed on the display panel; and a substrate disposed on the polarizing laminate.
In an exemplary embodiment, the polarizing laminate may be laminated such that a phase retardation layer, a polarizer, a surface treatment layer, and an adhesive layer are sequentially arranged from the display panel. In addition, the entire surface of the polarizing laminate may not be exposed to the outside of the image display device under normal use conditions.
In addition, in the image display device according to some exemplary embodiments, when the polarizing laminate further includes a protective film, an adhesive layer of the polarizing laminate may be laminated on one surface of the substrate, and the display panel may be arranged to be spaced apart from the other surface of the substrate. In this case, the surface of the protective film may be in contact with an air layer inside the image display device.
Substrate and method for manufacturing the same
The substrate may be provided as an insulating substrate, in which case the insulating substrate may be made of an insulating material such as glass, resin, or the like. In addition, the substrate may be made of a material having flexibility so that it can be bent or folded, and may have a single-layer structure or a multi-layer structure.
The substrate may comprise the following thermoplastic resins: polyester resins such as polyethylene terephthalate, polyethylene isophthalate, polyethylene naphthalate, polybutylene terephthalate, and the like; cellulose resins such as diacetyl cellulose and triacetyl cellulose; a polycarbonate resin; acrylic resins such as polymethyl (meth) acrylate, polyethyl (meth) acrylate, and the like; styrene resins such as polystyrene and acrylonitrile-styrene copolymer; polyolefin resins such as polyethylene, polypropylene, polyolefin having a cyclic or norbornene structure, ethylene-propylene copolymer, and the like; vinyl chloride resin; amide resins such as nylon and aromatic polyamide; imide-based resins; polyether sulfone resins; sulfone resins; polyether-ether-ketone resin; polyphenylene sulfide resin; vinyl alcohol resin; vinylidene chloride resin; a vinyl butyral resin; allylated resins; a polyoxymethylene resin; an epoxy resin. The substrate may also comprise a blend of the above thermoplastic resins.
Further, thermosetting resins such as (meth) acrylic, urethane, acrylic urethane, epoxy, silicone and the like, or ultraviolet curable resins may be contained. However, the materials constituting the substrate may vary, and in some exemplary embodiments, the substrate may also be formed of glass Fiber Reinforced Plastic (FRP) or the like.
Display panel
In an exemplary embodiment, a display panel of an image display device may include a micro Light Emitting Diode (LED) module. For micro LED modules, the term "micro" may be used to refer to LED modules having a size of 1 μm to 100 μm. However, the illustrative embodiments are not necessarily so limited, and in some embodiments smaller size LED modules may be used or larger size LED modules may be used.
Additionally, in an exemplary embodiment, the micro LED module may take the form of a LED group or LED array. The LED group or LED array is in the form of a parallel combination of micro LED chips comprising LED modules, and a seam may be formed between each LED module.
For example, an array comprising micro LED modules may have a pitch of 10 μm by 10 μm, or a pitch of 5 μm by 5 μm. Further, at such densities, a 6 inch substrate can accommodate about 1.65 hundred million micro LED modules with a 10 μm by 10 μm pitch. In addition, a 6 inch substrate can accommodate about 6.6 hundred million micro LED modules with a 5 μm by 5 μm pitch.
In addition, the micro LED module may be composed of a plurality of sub-pixels, each of which includes R (red), G (green), and B (blue). The 3 sub-pixels of R (red), G (green), and B (blue) constitute 1 Pixel (PA), and these Pixels (PA) may be arranged in succession. In addition, the micro LED module may emit blue light, green light or red light, white light, ultraviolet light, etc. by being combined with a wavelength conversion material such as phosphor.
Additionally, in an exemplary embodiment, the display panel may be positioned to be spaced apart from a surface of the polarizing stack. As used herein, the term "spaced apart" means that the two are not in direct contact. For example, an air layer may be formed between the display panel and the polarizing laminate, and the display panel and the polarizing laminate may be spaced apart by the air layer.
In addition, a separate support member may be included to form an air layer between the polarizing laminate and the display panel. The support member may appropriately space the display panel and the polarizing laminate so that the air layer may maintain a certain thickness. In addition, the polarizing laminate and the outer peripheral surface of the display panel may be fixed to form and maintain an air layer. A separate encapsulation may be performed to fix the peripheral surface.
In addition, in the exemplary image display device, a substrate, a polarizing laminate, and a display panel may be sequentially arranged. The substrate, the polarizing laminate, and the display panel may be separately prepared and assembled, or may be prepared simultaneously. In addition, a polarizing laminate may be laminated on one surface of the substrate, and the other surface of the substrate may be oriented toward the viewing side of the image display device.
In addition, as the LED module is miniaturized, the area of the seam included in the display panel may further increase, and may cause the seam to be visually recognized by a user. The image display device according to the exemplary embodiment can suppress the seam accompanying when the micro LED module is used from being visually recognized by including the polarizing laminate described above. Therefore, the polarizing laminate can suppress the visibility of the joint, thereby improving the optical characteristics of the image display device.
Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. However, the following drawings accompanying the present specification illustrate preferred embodiments of the present invention and, together with the above-described summary of the invention, serve to further facilitate an understanding of the technical concepts of the invention, and therefore the present invention should not be construed as being limited to only those illustrated in the drawings.
Fig. 1 and 2 are schematic cross-sectional views showing a polarizing laminate 100 according to an exemplary embodiment.
Referring to fig. 1, it can be seen that the polarizing laminate 100 includes an adhesive bonding layer 110, a surface treatment layer 120, a polarizer 130, and a phase retardation layer 140. In addition, in an exemplary embodiment, the adhesive layer 110, the surface treatment layer 120, the polarizer 130, and the phase retardation layer 140 may be sequentially laminated to form the polarizing laminate 100. In addition, the upper surface of the adhesive layer 110 may be exposed to the outside, and the lower surface of the phase delay layer 140 may be exposed to the outside.
Referring to fig. 2, the polarizing laminate 100 may further include a protective film 150. In addition, the adhesive layer 110, the surface treatment layer 120, the polarizer 130, the phase retardation layer 140, and the protective film 150 may be sequentially laminated to form the polarizing laminate 100. In addition, the lower surface of the protective film 150 may be exposed to the outside, and the upper surface of the adhesive bonding layer 110 may be exposed to the outside.
Fig. 3 is a schematic cross-sectional view of an image display apparatus 1 including a polarizing laminate 100 according to an exemplary embodiment.
In an exemplary embodiment, the image display apparatus 1 may include a polarizing laminate 100, a substrate 200, and a display panel 300. In addition, the substrate 200, the polarizing laminate 100, and the display panel 300 may be sequentially arranged to form the image display device 1. In addition, the display panel 300 may be disposed under the polarizing laminate 100, and an air layer 400 may be formed between the polarizing laminate 100 and the display panel 300 to space the display panel 300 and the polarizing laminate 100 apart.
In the following, preferred embodiments are presented to aid in understanding the present invention, but these embodiments are merely for illustrating the present invention and do not limit the scope of the appended claims, and it will be understood by those skilled in the art that various changes and modifications may be made to the embodiments within the scope and technical concept of the present invention and should fall within the scope of the appended claims.
Examples and comparative examples
Example 1
A triacetyl cellulose film (thickness 40 μm, TAC) was coated with a coating film containing silica-based nanoparticles (SAT) having an average particle diameter of 300nm using a Meyer rod) The nanoparticle solution (methyl ethyl ketone (MEK) solvent) of (a) was such that the thickness of the wet film was 5 μm, and then hot air drying was performed at 40 ℃ for 1 minute to induce the nanoparticle impregnation on the surface of the triacetyl cellulose film. Thereafter, a hard coating liquid (DN-0081, manufactured by JSR) was coated using a Meyer rod so that the thickness of the dried film was 5 μm, and then hot air drying and curing were performed at 70 ℃ for 1 minute, thereby obtaining a surface-treated layer. The internal haze value of the obtained surface-treated layer was 30%.
Further, a transparent unstretched polyvinyl alcohol film (VF-PE 60 μm, KURARAY Co.) having a saponification degree of 99.9% or more was immersed in water (deionized water) at 30℃for 2 minutes to swell, and then immersed in an aqueous solution for dyeing at 30℃containing 3.5mmol/L iodine and 2% by weight of potassium iodide for 4 minutes to carry out dyeing. At this time, the polyvinyl alcohol film was stretched 1.3 times and 1.4 times in the swelling and dyeing steps, respectively. Next, a 50 ℃ first crosslinking aqueous solution containing 10 wt% potassium iodide and 3.5 wt% boric acid and a 50 ℃ second crosslinking aqueous solution containing 1.0 wt% citric acid (citric acid) and 1.0 wt% zinc acetate were immersed for 2 minutes and 1 minute, respectively, to perform crosslinking. At this time, the crosslinking step makes the total cumulative stretch ratio 6.4 times.
After the crosslinking was completed, the polyvinyl alcohol film was dried in an oven at 70 ℃ for 4 minutes to manufacture a polarizer. The prepared surface-treated layer was laminated on the upper surface of the polarizer, and a lambda/4 phase retardation layer (ZD 12, manufactured by Zeon corporation) having a thickness of 47 μm was laminated on the lower surface of the polarizer. Further, an adhesive layer (acrylic adhesive, manufactured by Lintech corporation) having a thickness of 20 μm was formed on the upper surface of the surface-treated layer, thereby producing a polarizing laminate.
Example 2
A polarizing laminate was produced in the same manner as in example 1 except that the content of the inorganic particles and the impregnation time of the inorganic particles were changed so that the internal haze value of the surface-treated layer was 21%.
Example 3
A polarizing laminate was produced in the same manner as in example 1 except that the content of the inorganic particles and the impregnation time of the inorganic particles were changed so that the internal haze value of the surface-treated layer was 26%.
Example 4
A polarizing laminate was produced in the same manner as in example 1 except that the content of the inorganic particles and the impregnation time of the inorganic particles were changed so that the internal haze value of the surface-treated layer was 35%.
Example 5
A polarizing laminate was produced in the same manner as in example 1 except that the content of the inorganic particles and the impregnation time of the inorganic particles were changed so that the internal haze value of the surface-treated layer was 40%.
Comparative example 1
A polarizing laminate was produced in the same manner as in example 1, except that the surface treatment layer was excluded in producing the polarizing laminate.
Comparative example 2
A polarizing laminate was produced in the same manner as in example 1 except that the content of the inorganic particles and the impregnation time of the inorganic particles were changed so that the internal haze value of the surface-treated layer was 18%.
Comparative example 3
A polarizing laminate was produced in the same manner as in example 1 except that the content of the inorganic particles and the impregnation time of the inorganic particles were changed so that the internal haze value of the surface-treated layer was 10%.
Comparative example 4
A polarizing laminate was produced in the same manner as in example 1 except that the content of the inorganic particles and the impregnation time of the inorganic particles were changed so that the internal haze value of the surface-treated layer was 42%.
Comparative example 5
A polarizing laminate was produced in the same manner as in example 1 except that the content of the inorganic particles and the impregnation time of the inorganic particles were changed so that the internal haze value of the surface-treated layer was 50%.
Experimental example
1. Evaluation of haze value and reflectance
The internal haze value was measured using a spectrophotometer (HZ-1, manufactured by SUGA corporation, japan). The display panel was a 5V 9W halogen bulb, the light receiving portion was a silicon photo-electric tube (a specific sensitivity filter was attached), and the measurement was performed in accordance with JIS K-7136.
In addition, for measuring reflectance, UV-2450 (manufactured by Shimadzu corporation, japan) and adapter MPC-2200 (manufactured by Shimadzu corporation, japan) were used. The internal reflectance for an exit angle of 5 ° was measured at an incident angle of 5 ° in a wavelength range of 380 to 780nm, and an average reflectance of 450 to 650nm was calculated.
Haze values and reflectivities of the surface treatment layers included in the polarizing laminates of examples and comparative examples measured by the above-described methods are shown in table 1 below.
TABLE 1
2. Evaluation of joint visibility and color difference
An air layer is formed at a certain interval at an upper portion of the display panel including the micro LED module and the seam, and a transparent glass substrate is disposed at an upper portion of the air layer. The width of the micro LED module was 50 μm and the seam width was 0.1 μm. The refractive index of the transparent glass substrate was 1.51, the thickness of the transparent glass substrate was 520. Mu.m, and the width of the air layer was 120. Mu.m. An image display device was prepared by disposing the polarizing laminate of example or comparative example on the upper portion of the substrate.
For the image display devices including the polarizing laminates of examples and comparative examples, the visibility of the joints was examined with the naked eye in the presence or absence of visibility, and the color difference value between the light-emitting portion of the display panel and the joints was measured. The color difference meter used in the experiment was OSP-SP200 (manufactured by OLYMPUS Co.). Δl a b is the color difference between the light emitting part and the joint calculated according to the CIE 1976 (L, a, b) space color system. The evaluation results of the image display devices including the polarizing laminates of examples and comparative examples are shown in table 2 below.
< evaluation criteria >
O: the joint being visually perceived
X: the seams being not visible
TABLE 2
3. Definition evaluation
After the display panel was set so that the black-and-white pattern was repeated, the sharpness of the image was evaluated by visual observation from the front and at an angle of 45 degrees. The evaluation criteria are as follows, and the evaluation results are shown in table 3.
< evaluation criteria >
Excellent: clear and undistorted image
O (appropriate): the width of the pattern slightly varies, but the boundary of the pattern can be confirmed
X (not up to standard): distortion failing to confirm the boundary of the pattern
TABLE 3
Referring to tables 1 and 2, it can be confirmed that, in the exemplary embodiment, the surface treatment layer improves the visibility of the seam included in the display panel by satisfying a specified haze value. Therefore, by adopting the polarizing laminate according to the exemplary embodiment, it is possible to suppress the joint from being visually recognized by an external observer and prevent the optical performance from being degraded due to the joint included in the image display apparatus being visually recognized.
In addition, it can be confirmed with reference to tables 2 and 3 that, in the exemplary embodiment, the surface treatment layer makes the seams included in the display panel not visually recognized by satisfying the specified haze value, while ensuring a proper level of sharpness or more. In addition, the image display device can realize a more vivid color sense. As a result, the polarizing laminate according to the exemplary embodiment can improve the sharpness of the image display device while realizing an increase in the area of the image display device.
Meanwhile, in the cases of comparative examples 1, 2 and 3, the sharpness was found to be appropriate, but the joints were visually recognized, and in the cases of comparative examples 4 and 5, the sharpness was found to be not up to standard. Therefore, in the case of comparative examples 1, 2 and 3, it was confirmed that the light scattering of the surface treatment layer was not present or insufficient, and in the case of comparative examples 4 and 5, it was confirmed that the sharpness of the image display device was significantly degraded due to excessive light scattering.
Claims (11)
1. A polarizing laminate comprising:
a polarizer;
a surface treatment layer formed on one surface of the polarizer and having an internal haze value of 20% to 40% and a reflectivity of 3.5% or less;
a phase retardation layer formed on the other surface of the polarizer; and
and an adhesive bonding layer formed on a surface of the surface treatment layer.
2. The polarizing laminate according to claim 1, further comprising a protective film formed on a surface of the adhesive bonding layer.
3. The polarizing laminate according to claim 1, wherein the surface treatment layer comprises a hard coat film.
4. The polarizing laminate according to claim 3, wherein the surface-treated layer is formed of a coating composition containing a (meth) acrylate compound.
5. The polarizing laminate according to claim 4, wherein the surface-treated layer further comprises inorganic particles.
6. The polarizing laminate according to claim 4, wherein the inorganic particles have an average particle diameter of 100nm to 500nm.
7. The polarizing laminate according to claim 1, wherein the thickness of the surface-treated layer is 1 μm to 20 μm.
8. An image display device comprising:
a display panel;
the polarizing laminate according to claim 1, which is arranged on the display panel; and
a substrate disposed on the polarizing laminate.
9. The image display device according to claim 8, wherein the polarizing laminate is laminated such that the phase retardation layer, the polarizer, the surface treatment layer, and the adhesive layer are arranged in this order from the display panel.
10. The image display device of claim 8, wherein the display panel comprises a micro Light Emitting Diode (LED) module.
11. The image display device of claim 10, wherein the micro LED module comprises an array incorporating a plurality of micro LED chips.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210047880A KR20220141588A (en) | 2021-04-13 | 2021-04-13 | Polarizing laminate and image display device comprising the same |
| KR10-2021-0047880 | 2021-04-13 | ||
| PCT/KR2022/004391 WO2022220445A1 (en) | 2021-04-13 | 2022-03-29 | Polarization laminate and image display device comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117157566A true CN117157566A (en) | 2023-12-01 |
Family
ID=83639834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202280027242.2A Pending CN117157566A (en) | 2021-04-13 | 2022-03-29 | Polarizing laminate and image display device comprising same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2024514584A (en) |
| KR (1) | KR20220141588A (en) |
| CN (1) | CN117157566A (en) |
| WO (1) | WO2022220445A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130051230A (en) * | 2011-11-09 | 2013-05-20 | 동우 화인켐 주식회사 | Anti-glare hard coating composition, anti-glare hard coating film, polarizing plate and display device using the same |
| KR101688173B1 (en) | 2011-12-26 | 2016-12-21 | 코오롱인더스트리 주식회사 | Plastic substrate |
| KR20140032819A (en) * | 2012-09-07 | 2014-03-17 | 주식회사 엘지화학 | Anti-reflective coating film for organic light emitting diode and polarizing plate comprising the same |
| KR101751157B1 (en) * | 2013-07-05 | 2017-06-26 | 다이니폰 인사츠 가부시키가이샤 | Anti-glare film, polarizer, liquid-crystal panel, and image display device |
| KR102450284B1 (en) * | 2016-05-31 | 2022-10-05 | 스미또모 가가꾸 가부시키가이샤 | Resin laminate including polarizing plate and display device including same |
| JP7121479B2 (en) * | 2017-11-14 | 2022-08-18 | 株式会社トッパンＴｏｍｏｅｇａｗａオプティカルフィルム | Optical laminate, polarizing plate and display device |
-
2021
- 2021-04-13 KR KR1020210047880A patent/KR20220141588A/en active Search and Examination
-
2022
- 2022-03-29 CN CN202280027242.2A patent/CN117157566A/en active Pending
- 2022-03-29 JP JP2023562307A patent/JP2024514584A/en active Pending
- 2022-03-29 WO PCT/KR2022/004391 patent/WO2022220445A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022220445A1 (en) | 2022-10-20 |
| KR20220141588A (en) | 2022-10-20 |
| JP2024514584A (en) | 2024-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101465944B1 (en) | Optical layered body, polarizing plate, polarizing plate fabrication method, image display device, image display device manufacturing method, and image display device visual recognizability improvement method | |
| KR100830392B1 (en) | Production method for polarization plate, polarization plate and image display unit using it | |
| TWI647492B (en) | Optical laminate and graphic display device | |
| KR102242306B1 (en) | Method for manufacturing polarizing plate | |
| JP7300906B2 (en) | Optical layered body and image display device provided with the same | |
| CN110998371A (en) | Anti-reflection film | |
| CN106023822B (en) | OLED display device and manufacturing method thereof | |
| KR101822701B1 (en) | Polarizing plate and liquid crystal display comprising the same | |
| JP2013200445A (en) | Circularly polarizing plate | |
| KR20110126921A (en) | Polarizing plate and image display device using the same | |
| KR101822699B1 (en) | Optical sheet and liquid crystal display comprising the same | |
| TWI793981B (en) | Circularly polarizing plate and oled device comprising the same | |
| KR102593816B1 (en) | Optical laminate and image display device using the optical laminate | |
| TW202003221A (en) | Antireflective polarizing plate, optical laminate, and method for producing optical laminate | |
| CN117157566A (en) | Polarizing laminate and image display device comprising same | |
| US12010900B2 (en) | Circular polarizing plate | |
| CN117015729A (en) | Polarizing laminate and image display device comprising same | |
| JP2017049604A (en) | Circularly polarizing plate | |
| KR20130026269A (en) | Hard coating film, polarizing plate and image display device using the same | |
| KR20220022410A (en) | Polarizing Plate for Antireflection and Display Device Comprising the Same | |
| KR20230023433A (en) | Polarizing laminate and image display device comprising the same | |
| KR20230172692A (en) | Antiglare low reflective film, polarizing plate and optical display apparatus | |
| KR20230046955A (en) | Polarizing plate and image display apparatus | |
| KR20220022409A (en) | Polarizing Plate for Antireflection and Display Device Comprising the Same | |
| TW202321742A (en) | Optical laminate and image display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |