# US 2009/0268136 A1 · Color Liquid Crystal Display and Compensation Panel

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- Number: US 2009/0268136 A1
- Document ID: US20090268136A1
- Status: Published application
- Kind: A1
- Application number: 12/426,329
- Filed: 2009-04-20
- Published: 2009-10-29
- Earliest claimed: 2008-04-25
- Assignees: Crysoptix KK
- Inventors: Serguei Palto
- Web page: https://patentgrep.com/patent/US20090268136A1

## CPC

- G02F 1/13363: Birefringent elements, e.g. for optical compensation
- G02B 5/3008: {comprising dielectric particles, e.g. birefringent crystals embedded in a matrix}
- G02B 5/3083: {Birefringent or phase retarding elements (G02B5/3008, G02B5/3016 take precedence; systems for polarisation control G02B27/286; manufacturing phase modulating patterns by lithographic processes G03F7/001)}
- C09K 2323/00: Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- C09K 2323/05: Bonding or intermediate layer characterised by chemical composition, e.g. sealant or spacer
- G02F 1/133637: {characterised by the wavelength dispersion}
- G02F 1/13725: {based on guest-host interaction (G02F1/13762, G02F1/13737, take precedence)}
- G02F 2201/08: light absorbing layer
- G02F 2202/06: dopant
- G02F 2413/04: Number of plates greater than or equal to 4
- G02F 2413/06: Two plates on one side of the LC cell
- G02F 2413/12: Biaxial compensators
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

## Abstract

In one aspect of the present invention there is provided an optically anisotropic compensation panel with spectrally controllable dispersion of refractive indices. The compensation panel comprises at least one optically anisotropic layer based on an ordered guest-host system. The guest-host system comprises an anisotropic host matrix including an organic compound transparent to electromagnetic radiation in the visible spectral range, and guest component having guest particles. In another aspect the present invention provides a method of producing an optically anisotropic compensation panel disclosed. And in yet another embodiment the present invention provides a liquid crystal display with the compensation panel disclosed.

## Claims

### Claim 1

An optically anisotropic compensation panel comprising at least one optically anisotropic layer based on an ordered guest-host system comprising
an anisotropic host matrix, and
a guest component comprising guest particles,
wherein the anisotropic host matrix comprises an organic compound transparent to electromagnetic radiation in the visible spectral range, the guest particles provide an absorption additional to an absorption of the anisotropic host matrix, and
said additional absorption is realized in at least one principal direction of the anisotropic host matrix in at least one subrange of the wavelength range from approximately 250 to 2500 nm; and
wherein the compensation panel possesses a spectrally controllable dispersion of refractive indices.

### Claim 2 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer is characterized by three principal refractive indices (nx, ny and nz), at least one of which satisfies the following condition where ∂nu(λ)/∂λ≧0 in at least one subrange of the visible spectral range, and wherein the subscript u is selected from the list comprising x, y and z.

### Claim 3 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses biaxial properties of BA-type and is characterized by an in-plane difference of refractive indices Δin(λ)=|ny(λ)−nx(λ)|, which satisfies the condition ∂Δin(λ)/∂λ≧0 in at least one subrange of the visible spectral range.

### Claim 4 (depends on 3)

An optically anisotropic compensation panel according to claim 3, wherein the optically anisotropic layer is further characterized by an out-of-plane difference of refractive indices Δout(λ)=|nz(λ)−nx(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 5 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses biaxial properties of BA-type and is characterized by an out-of-plane difference of refractive indices Δout(λ)=|nz(λ)−nx(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 6 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses uniaxial properties of negative A-type and is characterized by an in-plane difference of refractive indices Δin(λ)=|ny(λ)−nx(λ)| which satisfies the condition ∂Δin(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 7 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses uniaxial properties of positive A-type and is characterized by an in-plane difference of refractive indices Δin(λ)=|ny(λ)−nx(λ)| which satisfies the condition ∂Δin(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 8 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses biaxial properties of AC-type and is characterized by an in-plane difference of refractive indices Δin(λ)=|ny(λ)−nx(λ)| which satisfies the condition ∂Δin(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 9 (depends on 8)

An optically anisotropic compensation panel according to claim 8, wherein the optically anisotropic layer is further characterized by an out-of-plane difference of refractive indices Δout(λ)=|nx(λ)−nz(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 10 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses biaxial properties of AC-type and is characterized by an out-of-plane difference of refractive indices Δout(λ)=|nx(λ)−nz(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 11 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses uniaxial properties of negative C-type and is characterized by an out-of-plane difference of refractive indices Δout(λ)=|nx(λ)−nz(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 12 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses uniaxial properties of positive C-type and is characterized by an out-of-plane difference of refractive indices Δout(λ)=|nz(λ)−nx(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 13 (depends on 3, 4, 6, 7, 8, 9)

An optically anisotropic compensation panel according to any of claims 3 to 4 or 6 to 9, wherein the in-plane difference of refractive indices Δin(λ) obeys the following condition: spectral dispersion factors (Δin,450/Δin,550) and (Δin,550/Δin,650) are in a range of 0.4-1.0, wherein Δin,450, Δin,550 and Δin,650 are values of the in-plain differences of refractive indices at wavelengths of 450 nm, 550 nm and 650 nm respectively.

### Claim 14 (depends on 4, 5, 9, 10, 11, 12)

An optically anisotropic compensation panel according to any of claims 4 to 5 or 9 to 12, wherein the out-of-plane difference of refractive indices Δout(λ) obeys the following condition: spectral dispersion factors (Δout,450/Δout,550) and (Δout,550/Δout,650) are in a range of 0.4-1.0, wherein Δout,450, Δout,550 and Δout,650 are values of the out-of-plane differences of refractive indices Δout(λ) at wavelengths of 450 nm, 550 nm and 650 nm respectively.

### Claim 15 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the organic compound for the host matrix has a general structural formula I
where Sys is an at least partially conjugated substantially planar polycyclic molecular system, X is a carboxylic group —COOH, m is 0, 1, 2, 3 or 4; Y is a sulfonic group —SO3H, n is 0, 1, 2, 3 or 4; Z is a carboxamide, p is 0, 1, 2, 3 or 4; Q is a sulfonamide, v is 0, 1, 2, 3 or 4; D is a counterion; s is the number of counterions providing electrically neutral state of the molecule; R is a substituent selected from the list comprising CH3, C2H5, Cl, Br, NO2, F, CF3, CN, OH, CH3, OC2H5, OCOCH3, OCN, SCN, NH2, and NHCOCH3, and w is 0, 1, 2, 3 or 4.

### Claim 16 (depends on 15)

An optically anisotropic compensation panel according to claim 15, wherein polycyclic molecular system Sys is substantially transparent in the visible spectral range.

### Claim 17 (depends on 15, 16)

An optically anisotropic compensation panel according to any of claims 15 or 16, wherein Sys has a general structural formula from the list comprising structures II to XLVI:
where n is a number in the range from 1 to 8

### Claim 18 (depends on 15)

An optically anisotropic compensation panel according to claim 15, wherein the counterion is selected from the list comprising H+, NH4+, Na+, K+, Li+, Ba++, Ca++, Mg++, Sr++, Cs+, Pb++, and Zn++.

### Claim 19 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the organic compound is an oligophenyl derivative.

### Claim 20 (depends on 19)

An optically anisotropic compensation panel according to claim 19, wherein the oligophenyl derivative has a general structural formula corresponding to one of structures 1 to 7:

### Claim 21 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the organic compound is selected from the list comprising derivatives of 1H,1′H-2,2′-bibenzimidazole, derivatives of 2,2′-bi-1,3-benzoxazole, and derivatives of 2,2′-bi-1,3-benzothiazole and has a general structural formula corresponding to one of structures 8 to 26:

### Claim 22 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the organic compound is a “triazine” derivative and has a general structural formula corresponding to one of structures 27 to 29:

### Claim 23 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the organic compound is an acenaphthoquinoxaline derivative.

### Claim 24 (depends on 23)

An optically anisotropic compensation panel according to claim 23, wherein the acenaphthoquinoxaline derivative comprises carboxylic and/or sulfonic groups and has a general structural formula corresponding to one of structures 30 to 48:

### Claim 25 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the organic compound is a 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivative.

### Claim 26 (depends on 25)

An optically anisotropic compensation panel according to claim 25, wherein the 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivative comprises carboxylic and/or sulfonic groups and said derivative has a general structural formula from the group comprising structures 49 to 70:

### Claim 27 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix is characterized by three principal refractive indices (nx,h, ny,h and nz,h) which possess normal spectral dispersion ∂nu(λ)/∂λ<0 in the visible spectral range, and wherein the subscript u is selected from the list comprising x, y and z.

### Claim 28 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses biaxial properties of BA-type and is characterized by an in-plane difference of refractive indices Δin,h(λ)=|ny,h(λ)−nx,h(λ)| possessing a normal spectral dispersion (∂Δin,h(λ)/∂λ<0) in the visible spectral range.

### Claim 29 (depends on 28)

An optically anisotropic compensation panel according to claim 28, wherein the anisotropic host matrix is further characterized by an out-of-plane difference of refractive indices Δout,h(λ)=|nx,h(λ)−nz,h(λ)| possessing a normal spectral dispersion (∂Δout,h(λ)/∂λ<0) in the visible spectral range.

### Claim 30 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses biaxial properties of BA-type and is characterized by an out-of-plane difference of refractive indices Δout,h(λ)=nx,h(λ)−nz,h(λ)| possessing normal dispersion (∂Δout,h(λ)/∂λ<0) in the visible spectral range.

### Claim 31 (depends on 29, 30)

An optically anisotropic compensation panel according to any of claims 29 or 30, wherein the anisotropic host matrix comprises anisotropic supramolecules characterized by a polarizability tensor, for which one of its principal axes is substantially parallel to the x-axis.

### Claim 32 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses uniaxial properties of positive A-type and is characterized by an in-plane difference of refractive indices Δin,h(λ)=|ny,h(λ)−nx,h(λ)| possessing normal dispersion (∂Δin,h(λ)/∂λ<0) in the visible spectral range.

### Claim 33 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses uniaxial properties of negative A-type and is characterized by an in-plane difference of refractive indices Δin,h(λ)=|ny,h(λ)−nx,h(λ)| possessing normal dispersion (∂Δin,h(λ)/∂λ<0) in the visible spectral range.

### Claim 34 (depends on 32, 33)

An optically anisotropic compensation panel according to any of claims 32 or 33, wherein the anisotropic host matrix comprises uniaxial anisotropic supramolecules which are oriented with one of their principal axes substantially parallel to the x-axis, wherein one of principal directions of polarizability tensor of said supramolecules coincides with this principal axis of supramolecule, and other two principal axes may be chosen in a perpendicular plane arbitrarily and principal values of the polarizability tensor along these chosen two principal axes are substantially equal.

### Claim 35 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses biaxial properties of AC-type and is characterized by a difference of refractive indices Aout,h(λ)=|nx,h(λ)−nz,h(λ)| possessing a normal spectral dispersion (∂Δout,h(λ)/∂λ<0) in the visible spectral range.

### Claim 36 (depends on 35)

An optically anisotropic compensation panel according to claim 35, wherein the anisotropic host matrix is further characterized by an in-plane difference of refractive indices Δin,h(λ)=|ny,h(λ)−nx,h(λ)| possessing a normal dispersion (∂Δin,h(λ)/∂λ<0) in the visible spectral range.

### Claim 37 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses biaxial properties of AC-type and is characterized by an in-plane difference of refractive indices Δin,h(λ)=ny,h(λ)−nx,h(λ)| possessing a normal spectral dispersion (∂Δin,h(λ)/∂λ<0) in the visible spectral range.

### Claim 38 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses uniaxial properties of positive C-type and is characterized by an out-of-plane difference of refractive indices Δout,h(λ)=|nz,h(λ)−nx,h(λ)| possessing a normal spectral dispersion (∂Δout,h(λ)/∂λ<0) in the visible spectral range.

### Claim 39 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses uniaxial properties of negative C-type and is characterized by an out-of-plane difference of refractive indices Δout,h(λ)=|nx,h(λ)−nz,h(λ)| possessing a normal spectral dispersion (∂Δout,h(λ)/∂λ<0) in the visible spectral range.

### Claim 40 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the guest absorbing particle is selected from the list comprising a single atom, single organic molecule, single inorganic molecule, macromolecule, polymer molecule, group of atoms, inorganic nano-crystal, group of molecules, molecular nano-crystal, and non-ordered nano-particle.

### Claim 41 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the guest particles are made of at least one inorganic material.

### Claim 42 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the guest particles are made of at least one organic material.

### Claim 43 (depends on 41, 42)

An optically anisotropic compensation panel according to any of claims 41 or 42, wherein the guest particles are pigments.

### Claim 44 (depends on 42)

An optically anisotropic compensation panel according to claim 42, wherein the guest particles are dye molecules.

### Claim 45 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the guest particles are optically isotropic particles.

### Claim 46 (depends on 1)

An optically anisotropic compensation panel according to claim 1, wherein the guest particles are optically anisotropic particles.

### Claim 47 (depends on 44)

An optically anisotropic compensation panel according to claim 44, wherein at least one dye molecule has a general structural formula corresponding to structures 71 to 79:

### Claim 48 (depends on 1)

An optically anisotropic compensation panel according to claim 1, further comprising a substrate.

### Claim 49 (depends on 48)

An optically anisotropic compensation panel according to claim 48, wherein the substrate is made of one or several materials of the group comprising diamond, quartz, plastics, glasses, ceramics, and comprises at least one element of the group comprising color filter substrate, circuit features, multilevel interconnects, and TFT-array substrate.

### Claim 50

A method of producing an optically anisotropic compensation panel based on an ordered guest-host system and having spectral dependencies of principal refractive indices nx(λ), ny(λ) and nz(λ), wherein at least one of them possesses an anomalous spectral dispersion in at least one subrange of the visible spectral range and which includes the following steps:
a) assignment of spectral dependencies of principal refractive indices nx(λ), ny(λ) and nz(λ), so that at least one difference of the principal refractive indices Δv(λ) defining the optical anisotropy satisfies the condition ∂Δv(λ)/∂λ≧0 in the visible spectral range, wherein subscript v is selected from the list comprising in and out;
b) numerical designation and variation of principal absorption coefficient spectra kx,cal(λ) ky,cal(λ), and kz,cal(λ) until the spectral dependencies nx(λ)=KK(kx(λ)), ny(λ)=KK(ky(λ)) and nz(λ)=KK(kz(λ)) evaluated according to Kramers-Kronig relation satisfy the spectral dependencies for the refractive indices as specified in step (a);
c) selection of at least one organic compound substantially transparent to electromagnetic radiation in the visible spectral range which serves as a host component capable of forming an optically anisotropic host matrix with normal spectral dispersion in the visible range that is characterized by the absorption coefficients kx,h(λ), ky,h(λ) and kz,h(λ) in the UV spectral range;
d) selection of at least one type of guest particles which are capable of absorbing electromagnetic radiation in at least one subrange of the wavelength range from 250 to 2500 nm, to fit into the host matrix as a guest component, and which are characterized by the absorption coefficients kx,g(λ), ky,g(λ) and kz,g(λ);
e) optimization of the guest-components quantity which minimizes inconsistence between the calculated absorption spectra kx, cal(λ) ky, cal(λ) and kz, cal(λ) according to step b) and appropriate functions kx,h(λ)+kx,g(λ), ky,h(λ)+ky,g(λ), and kz,h(λ)+kz,g(λ) in the wavelength range from 250 to 2500 nm;
f) formation of a coating solution according to previous steps, wherein at least one organic compound transparent to electromagnetic radiation in the visible spectral range and at least one type of guest particles capable of absorbing electromagnetic radiation in at least one subrange of the wavelength range from 250 to 2500 nm are used;
g) application of the coating solution onto a substrate to form a liquid layer;
h) application of an external alignment action upon the liquid layer,
i) drying with formation of a solid guest-host layer, and
j) measurements of experimental spectra kx,(λ), ky,(λ), and kz,(λ) for the solid guest-host layer and repeating steps c) to i) until an inconsistence between the measured and calculated absorption spectra kx, cal(λ), ky, cal(λ), and kz, cal(λ) is minimal.

### Claim 51 (depends on 50)

A method according to claim 50, wherein the organic compound has a general structural formula I
where Sys is an at least partially conjugated substantially planar polycyclic molecular system, X is a carboxylic group —COOH, m is 0, 1, 2, 3 or 4; Y is a sulfonic group —SO3H, n is 0, 1, 2, 3 or 4; Z is a carboxamide, p is 0, 1, 2, 3 or 4; Q is a sulfonamide, v is 0, 1, 2, 3 or 4; D is a counterion; s is the number of counterions providing electrically neutral state of the molecule; R is a substituent selected from the list comprising CH3, C2H5, Cl, Br, NO2, F, CF3, CN, OH, CH3, OC2H5, OCOCH3, OCN, SCN, NH2, and NHCOCH3, and w is 0, 1, 2, 3 or 4.

### Claim 52 (depends on 51)

A method according to claim 51, wherein the polycyclic molecular system Sys is substantially transparent in the visible spectral range.

### Claim 53 (depends on 51, 52)

A method according to any of claims 51 or 52, wherein the polycyclic molecular system Sys has a general structural formula from the list comprising structures II to XLVI:
where n is a number in the range from 1 to 8

### Claim 54 (depends on 51)

A method according to claim 51, wherein the counterion is selected from the list comprising H+, NH4+, Na+, K+, Li+, Ba++, Ca++, Mg++, Sr++, Cs+, Pb++, and Zn++.

### Claim 55 (depends on 50)

A method according to claim 50, wherein the organic compound is an oligophenyl derivative.

### Claim 56 (depends on 55)

A method according to claim 55, wherein the oligophenyl derivative has a general structural formula corresponding to one of structures 1 to 7:

### Claim 57 (depends on 50)

A method according to claim 50, wherein the organic compound is a bibenzimidazole derivative and has a general structural formula corresponding to one of structures 8 to 26:

### Claim 58 (depends on 50)

A method according to claim 50, wherein the organic compound is a “triazine” derivative and has a general structural formula corresponding to one of structures 27 to 29:

### Claim 59 (depends on 50)

A method according to claim 50, wherein the organic compound is an acenaphthoquinoxaline derivative.

### Claim 60 (depends on 59)

A method according to claim 59, wherein the acenaphthoquinoxaline derivative comprises carboxylic and/or sulfonic groups and has a general structural formula corresponding to one of structures 30 to 48:

### Claim 61 (depends on 50)

A method according to claim 50, wherein the organic compound is a 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivative.

### Claim 62 (depends on 61)

A method according to claim 61, wherein the 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivative comprises carboxylic and/or sulfonic groups and said derivative has a general structural formula from the group comprising structures 49 to 70:

### Claim 63 (depends on 50)

A method according to claim 50, wherein the guest particles are selected from the list comprising a single atom, single organic molecule, single inorganic molecule, macromolecule, polymer molecule, group of atoms, inorganic nano-crystal, group of molecules, molecular nano-crystal, non-ordered nano-particle.

### Claim 64 (depends on 50)

A method according to claim 50, wherein the guest particles are made of at least one inorganic material.

### Claim 65 (depends on 50)

A method according to claim 50, wherein the guest particles are made of at least one organic material.

### Claim 66 (depends on 64, 65)

A method according to claim 64 or 65, wherein the guest particles are pigments.

### Claim 67 (depends on 65)

A method according to claim 65, wherein the guest particles are dye molecules.

### Claim 68 (depends on 50)

A method according to claim 50, wherein the guest particles are optically isotropic particles.

### Claim 69 (depends on 50)

A method according to claim 50, wherein the guest particles are optically anisotropic.

### Claim 70 (depends on 67)

A method according to claim 67, wherein at least one dye molecule has a general structural formula corresponding to structures 71 to 79:

### Claim 71 (depends on 50)

A method according to claim 50, wherein the substrate is made of one or several materials of the group comprising diamond, quartz, plastics, glasses, ceramics, and comprises at least one element of the group comprising color filter substrate, circuit features, multilevel interconnects, and TFT-array substrate.

### Claim 72 (depends on 50)

A method according to claim 50, wherein said liquid layer further comprises a solvent selected from the group comprising water, water-miscible solvent, alcohol-based solvent, and any combination thereof.

### Claim 73 (depends on 72)

A method according to claim 72, wherein the solvent is water.

### Claim 74 (depends on 50)

A method according to claim 50, wherein the drying is executed in airflow.

### Claim 75 (depends on 50)

A method according to claim 50, further comprising a pretreatment step before the application onto the substrate.

### Claim 76 (depends on 75)

A method according to claim 75, wherein the pretreatment comprises the step of making the surface of the substrate hydrophilic.

### Claim 77 (depends on 75, 76)

A method according to claim 75 or 76, wherein the pretreatment further comprises an application of a planarization layer.

### Claim 78 (depends on 50)

A method according to claim 50, further comprising a post-treatment step with a solution of any aqueous-soluble inorganic salt with a cation selected from the group containing H+, NH4+, Na+, K+, Li+, Cs+, Ba++, Ca++, Mg++, Sr++, La3+, Zn++, Zr4+, Ce3, Y3+, Yb3+, Gd3+ and any combination thereof.

### Claim 79 (depends on 78)

A method according to claim 78, wherein the application step and post-treatment step are carried out simultaneously.

### Claim 80 (depends on 78, 79)

A method according to claim 78 or 79, wherein the drying and post-treatment steps are carried out simultaneously.

### Claim 81 (depends on 78, 79)

A method according to claim 78 or 79, wherein the post-treatment step is carried out after drying.

### Claim 82 (depends on 50)

A method according to claim 50, wherein the coating solution is an isotropic solution.

### Claim 83 (depends on 50)

A method according to claim 50, wherein the coating solution is a lyotropic liquid crystal solution.

### Claim 84 (depends on 50)

A method according to claim 50, wherein the application step is made of a gel.

### Claim 85 (depends on 50)

A method according to claim 50, wherein the application step is made of a viscous liquid phase.

### Claim 86 (depends on 50)

A method according to claim 50, wherein the alignment action is applied onto said liquid layer simultaneously with the application of the coating solution.

### Claim 87

A color liquid crystal display comprising
a liquid crystal cell,
first and second polarizers arranged on each side of the liquid crystal cell, and
at least one compensation panel located between said polarizers,
wherein the compensation panel comprises at least one optically anisotropic layer based on an ordered guest-host system,
wherein the guest-host system comprising
an anisotropic host matrix comprising an organic compound transparent to electromagnetic radiation in the visible spectral range, and
a guest component comprising guest particles,
wherein the guest particles provide an absorption additional to an absorption of the anisotropic host matrix, and
wherein said additional absorption is realized in at least one principal direction of the anisotropic host matrix in at least one subrange of the wavelength range from approximately 250 to 2500 nm.

### Claim 88 (depends on 87)

A color liquid crystal display according to claim 87, further comprising a color filter.

### Claim 89 (depends on 88)

A color liquid crystal display according to claim 88, wherein the color filter has a configuration selected from the list comprises stripe, mosaic and delta configurations.

### Claim 90 (depends on 87)

A color liquid crystal display according to claim 87, wherein the organic compound has a general structural formula I
where Sys is an at least partially conjugated substantially planar polycyclic molecular system, X is a carboxylic group —COOH, m is 0, 1, 2, 3 or 4; Y is a sulfonic group —SO3H, n is 0, 1, 2, 3 or 4; Z is a carboxamide, p is 0, 1, 2, 3 or 4; Q is a sulfonamide, v is 0, 1, 2, 3 or 4; D is a counterion; s is the number of counterions providing electrically neutral state of the molecule; R is a substituent selected from the list comprising CH3, C2H5, Cl, Br, NO2, F, CF3, CN, OH, CH3, OC2H5, OCOCH3, OCN, SCN, NH2, and NHCOCH3, and w is 0, 1, 2, 3 or 4.

### Claim 91 (depends on 90)

A color liquid crystal display according to claim 90, wherein the polycyclic molecular system Sys is substantially transparent in the visible spectral range.

### Claim 92 (depends on 90, 91)

A color liquid crystal display according to any of claims 90 or 91, wherein the polycyclic molecular system Sys has a general structural formula from the list comprising structures II to XLVI:
where n is the number in the range from 1 to 8

### Claim 93 (depends on 90)

A color liquid crystal display according to claim 90, wherein the counterion is selected from the list comprising H+, NH4+, Na+, K+, Li+, Ba++, Ca++, Mg++, Sr++, Cs+, Pb++, and Zn++.

### Claim 94 (depends on 87)

A color liquid crystal display according to claim 87, wherein the organic compound is an oligophenyl derivative.

### Claim 95 (depends on 94)

A color liquid crystal display according to claim 94, wherein the oligophenyl derivative has a general structural formula corresponding to one of structures 1 to 7:

### Claim 96 (depends on 87)

A color liquid crystal display according to claim 87, wherein the organic compound is a bibenzimidazole derivative and has a general structural formula corresponding to one of structures 8 to 26:

### Claim 97 (depends on 87)

A color liquid crystal display according to claim 87, wherein the organic compound is a “triazine” derivative and has a general structural formula corresponding to one of structures 27 to 29:

### Claim 98 (depends on 87)

A color liquid crystal display according to claim 87, wherein the organic compound is an acenaphthoquinoxaline derivative.

### Claim 99 (depends on 98)

A color liquid crystal display according to claim 98, wherein the acenaphthoquinoxaline derivative comprises carboxylic and/or sulfonic groups and has a general structural formula corresponding to one of structures 30 to 48:

### Claim 100 (depends on 87)

A color liquid crystal display according to claim 87, wherein the organic compound is a 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivative.

### Claim 101 (depends on 100)

A color liquid crystal display according to claim 100, wherein the 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivative comprises carboxylic and/or sulfonic groups and said derivative has a general structural formula from the group comprising structures 49 to 70:

### Claim 102 (depends on 87)

A color liquid crystal display according to claim 87, wherein the optically anisotropic layer is characterized by three principal refractive indices (nx, ny and nz) at least one of which satisfies the condition ∂nu(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range, wherein the inferior index u is selected from the list comprising x, y and z.

### Claim 103 (depends on 87)

A color liquid crystal display according to claim 87, wherein the optically anisotropic layer possesses biaxial properties of BA-type and is characterized by an in-plane difference of refractive indices Δin(λ)=|ny(λ)−nx(λ)| which satisfies the condition ∂Δin(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 104 (depends on 103)

A color liquid crystal display according to claim 103, wherein the optically anisotropic layer is further characterized by an out-of-plane difference of refractive indices Δout(λ)=|nz(λ)−nx(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 105 (depends on 87)

A color liquid crystal display according to claim 87, wherein the optically anisotropic layer possesses biaxial properties of BA-type and is characterized by an out-of-plane difference of refractive indices Δout(λ)=|nz(λ)−nx(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 106 (depends on 87)

A color liquid crystal display according to claim 87, wherein the optically anisotropic layer possesses uniaxial properties of negative A-type and is characterized by an in-plane difference of refractive indices Δin(λ)=|ny(λ)−nx(λ)| which satisfies the condition ∂Δin(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 107 (depends on 87)

A color liquid crystal display according to claim 87, wherein the optically anisotropic layer possesses uniaxial properties of positive A-type and is characterized by an in-plane difference of refractive indices Δin(λ)=|ny(λ)−nx(λ)| which satisfies the condition ∂Δin(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 108 (depends on 87)

A color liquid crystal display according to claim 87, wherein the optically anisotropic layer possesses biaxial properties of AC-type and is characterized by an in-plane difference of refractive indices Δin(λ)=|ny(λ)−nx(λ)| which satisfies the condition ∂Δin(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 109 (depends on 108)

A color liquid crystal display according to claim 108, wherein the optically anisotropic layer is further characterized by an out-of-plane difference of refractive indices Δout(λ)=|nx(λ)−nz(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 110 (depends on 87)

A color liquid crystal display according to claim 87, wherein the optically anisotropic layer possesses biaxial properties of AC-type and is characterized by an out-of-plane difference of refractive indices Δout(λ)=|nx(λ)−nz(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 111 (depends on 87)

A color liquid crystal display according to claim 87, wherein the optically anisotropic layer possesses uniaxial properties of negative C-type and is characterized by an out-of-plane difference of refractive indices Δout(λ)=|nx(λ)−nz(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 112 (depends on 87)

A color liquid crystal display according to claim 87, wherein the optically anisotropic layer possesses uniaxial properties of positive C-type and is characterized by an out-of-plane difference of refractive indices Δout(λ)=|nz(λ)−nx(λ)| which satisfies the condition ∂Δout(λ)/∂λ≧0 in at least one wavelength subrange of the visible spectral range.

### Claim 113 (depends on 103, 104, 106, 107, 108, 109)

A color liquid crystal display according to any of claims 103 to 104 or 106 to 109, wherein the in-plane difference of refractive indices Δin(λ) obeys the following condition: a wavelength dispersion factors (Δin,450/Δin,550) and (Δin,550/Δin,650) are in a range of 0.4-1.0, wherein Δin,450, Δin,550 and Δin,650 are values of the in-plain differences of refractive indices at wavelengths of 450 nm, 550 nm and 650 nm respectively.

### Claim 114 (depends on 104, 105, 109, 110, 111, 112)

A color liquid crystal display according to any of claims 104 to 105 or 109 to 112, wherein the out-of-plane difference of refractive indices Δout(λ) obeys the following condition: spectral dispersion factors (Δout,450/Δout,550) and (Δout,550/Δout,650) are in a range of 0.4-1.0, wherein Δout,450, Δout,550 and Δout,650 are values of the out-of-plane differences of the refractive indices Δout(λ) at wavelengths of 450 nm, 550 nm and 650 nm respectively.

### Claim 115 (depends on 87)

A color liquid crystal display according to claim 87, wherein the guest particles are selected from the list comprising a single atom, single organic molecule, single inorganic molecule, macromolecule, polymer molecule, group of atoms, inorganic nano-crystal, group of molecules, molecular nano-crystal, and non-ordered nano-particle.

### Claim 116 (depends on 87)

A color liquid crystal display according to claim 87, wherein the guest particles are made of at least one inorganic material.

### Claim 117 (depends on 87)

A color liquid crystal display according to claim 87, wherein the guest particles are made of at least one organic material.

### Claim 118 (depends on 116, 117)

A color liquid crystal display according to any of claims 116 or 117, wherein the guest particles are pigments.

### Claim 119 (depends on 117)

A color liquid crystal display according to claim 117, wherein the guest particles are dye molecules.

### Claim 120 (depends on 87)

A color liquid crystal display according to claim 87, wherein the guest particles are optically isotropic particles.

### Claim 121 (depends on 87)

A color liquid crystal display according to claim 87, wherein the guest particles are optically anisotropic particles.

### Claim 122 (depends on 119)

A color liquid crystal display according to claim 119, wherein at least one dye molecule has a general structural formula corresponding to structures 71 to 79:

### Claim 122 (depends on 87)

A color liquid crystal display according to claim 87, wherein the compensation panel further comprises a substrate.

### Claim 123 (depends on 122)

A color liquid crystal display according to claim 122, wherein the substrate is made of one or several materials of the group comprising diamond, quartz, plastics, glasses, ceramics, and comprises at least one element of the group comprising the color filter substrate, circuit features, multilevel interconnects, and a TFT-array substrate.

### Claim 124 (depends on 87)

A color liquid crystal display according to claim 87, wherein the liquid crystal cell is an in-plane switching mode liquid crystal cell.

### Claim 125 (depends on 87)

A color liquid crystal display according to claim 87, wherein the liquid crystal cell is a vertically-aligned mode liquid crystal cell.

### Claim 126 (depends on 87)

A color liquid crystal display according to claim 87, wherein the compensation panel is located inside the liquid crystal cell.

### Claim 127 (depends on 87)

A color liquid crystal display according to claim 87, wherein the compensation panel is located outside the liquid crystal cell.