Near-infrared absorbing and color compensation film composition for electronic devices
Disclosed herein are a near-infrared absorbing and color compensation film composition and a film using the film composition. The film composition comprises i) at least one colorant selected from the group consisting of an ionic compound of a near-infrared absorbing cyanine colorant cation having a maximum absorption wavelength in the range of 820 nm to 950 nm and a metal complex colorant anion, an ionic compound of a near-infrared absorbing diimmonium colorant cation having a maximum absorption wavelength in the range of 950 nm to 1,100 nm and a metal complex colorant anion, and an ionic compound of a selective visible light absorbing cyanine colorant cation having a maximum absorption wavelength in the range of 580 nm to 600 nm and a metal complex colorant anion, and ii) an adhesive; and a film using the film composition. When the film composition is used to produce an adhesive film or an antireflective composite film, the price of raw materials used and the number of production steps can be reduced. Therefore, the film composition can be effectively applied to a front filter for a plasma display.
1. An electronic device comprising:
a display for displaying visible light of an image; and
a film placed in relation to the display such that at least part of the visible light passes therethrough, wherein the film includes:
a first ionic compound including a first anion and a first cation that are ionically bonded to one another;
a second ionic compound including a second anion and a second cation that are ionically bonded to one another,
wherein:
the first anion is a metal complex anion represented by Formula 5 or Formula 6:
in Formulae 5 and 6, each B is independently an unsubstituted benzene ring or a benzene ring substituted with a substituent group selected from the group of halogen, C 1 -C 16 alkyl, C 1 -C 16 alkoxy, C 1 -C 16 alkylalkoxy, cyano, C 1 -C 16 alkylsulfide, amino, nitro, and ester, and M is a metal atom selected from the group of Pd, Ni, Co, and Cu,
the first cation is a near infrared absorbing cyanine cation having an absorption maximum in the range of 820 nm to 950 nm, and represented by Formula 1:
wherein each of R 1 and R 4 is independently hydrogen halogen nitro, cyano C 1 -C 16 alkoxy, C 1 -C 16 alkyl, C 1 -C 16 alkylalkoxy or amino;
wherein each of R 2 and R 9 is independently hydrogen C 1 -C 16 alkyl C 1 -C 16 alkylalkoxy or C 1 -C 16 alkylsulfonic acid;
wherein R 3 is hydrogen, halogen, substituted phenyl C 1 -C 16 alkyl or amino;
wherein each D is independently a benzene or naphthalene ring;
wherein each of X and Y is independently C, N, S or Se, provided that when both X and Y are C each of R 5 and R 6 is independently hydrogen or C 1 -C 16 alkyl, or R 5 and R 6 are bonded together to form an alkyl ring, and each of R 7 and R 8 is independently hydrogen or C 1 -C 16 alkyl, or R 7 and R 8 are bonded together to form an alkyl ring, provided that when both X and Y are N, each of R 5 and R 7 is independently hydrogen or C 1 -C 16 alkyl, and R 6 and R 8 represent no atom and provided that when X and Y are S or Se, R 5 , R 6 , R 7 and R 8 represent no atom; and
wherein n is an integer between 0 and 2;
the second cation is a visible light absorbing cyanine cation having an absorption maximum in the range of 580 nm to 600 nm, and represented by Formula 4:
wherein each of R9 and R10 is independently hydrogen, halogen, nitro, cyano, C l -C 16 alkoxy, C 1 -C 16 alkyl, C 1 -C 16 alkylalkoxy, or amino;
wherein each of R 5 and R 6 is independently hydrogen, C 1 -C 16 alkyl, C 1 -C 16 alkylalkoxy, or C 1 -C 16 alkylsulfonic acid; and
wherein n is 1, R 7 is hydrogen or halogen, substituted phenyl, C 1 -C 16 alkyl or amino and R 8 is hydrogen;
wherein each E is independently a benzene or naphthalene ring; and
wherein each of X and Y is each independently C, N, S or Se, provided that when both X and Y are C, each of R 1 and R 2 is independently hydrogen or C 1 -C 16 alkyl, or R 1 and R 2 are bonded together to form an alkyl ring, and each of R 3 and R 4 is independently hydrogen or C 1 -C 16 alkyl, or R 3 and R 4 are bonded to ether to form an alkyl ring, provided that when both X and Y are N, each of R 1 and R 3 is independently hydrogen or C 1 -C 16 alkyl, and R 2 and R 4 represent no atom, and provided that when X and Y are S or Se, R 1 , R 2 , R 3 and R 4 represent no atom, and
the second anion is an azo-metal complex anion represented by Formula 7:
wherein M in Formula 7 is a metal,
wherein each A is independently a substituted or unsubstituted benzene ring, substituted or unsubstituted naphthalene ring, or substituted or unsubstituted anthracene ring, and
wherein the substituted ring is substituted with at least one substituent group comprising a halogen a C 1 -C 16 alkyl a C 1 -C 16 alkoxy, a C 1 -C 16 alkylalkoxy, a cyano a C 1 -C 16 alkylsulfide, a substituted sulfonyl, an amino, a nitro, or an ester.
2. The device of claim 1 , wherein the display comprises a plasma display panel.
3. The device of claim 1 , wherein the metal M in Formula 7 is selected from the group of Pd, Ni, Co and Cr.
4. The device of Claim 1 , wherein the azo-metal complex anion is further represented by Formula 10:
5. The device of claim 1 , wherein the film is adapted to absorb light with a wavelength between about 820 nm and about 1,100 nm.
6. The electronic device of claim 1 , further comprising a cross-linking agent which is an isocyanate cross-linking agent, an epoxy cross-linking agent, or a melamine cross-linking agent.
7. A method of absorbing or reducing emission of light having certain wavelength from a display, comprising:
providing an electronic device of claim 1 ;
stimulating the electronic device to emit light rays from the display, thereby displaying an image on a surface of the display; and
absorbing at least part of the light rays in the film.