Color liquid crystal display and compensation panel

• US 8,142,863 B2
• Filed: 04/20/2009
• Issued: 03/27/2012
• Est. Priority Date: 04/25/2008
• Status: Active Grant

• Current Assignee: Crysoptix Kk
• Original Assignee: Crysoptix Kk
• Inventors: Palto, Serguei
• Primary Examiner(s): WU, SHEAN CHIU
• Application Number:
  US12/426,329
• Publication Number:
  US 20090268136A1
• Time in Patent Office: 1,072 Days
• Field of Search: 252/299.01, 428/1.1, 428/1.5, 349/117, 349/106
• US Class Current: 428/1.1
• CPC Class Codes: C09K 2323/00 Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
• CPC Class Codes: C09K 2323/05 Bonding or intermediate layer characterised by chemical composition, e.g. sealant or spacer
• CPC Class Codes: G02B 5/3008 comprising dielectric particles, e.g. birefringent crystals embedded in a matrix
• CPC Class Codes: 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
• CPC Class Codes: G02F 1/13363 Birefringent elements, e.g. for optical compensation
• CPC Class Codes: G02F 1/133637 characterised by the wavelength dispersion
• CPC Class Codes: G02F 1/13725 based on guest-host interaction G02F1/13762, G02F1/13737, take precedence
• CPC Class Codes: G02F 2201/08 light absorbing layer
• CPC Class Codes: G02F 2202/06 dopant
• CPC Class Codes: G02F 2413/04 Number of plates greater than or equal to 4
• CPC Class Codes: G02F 2413/06 Two plates on one side of the LC cell
• CPC Class Codes: G02F 2413/12 Biaxial compensators

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

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;

wherein the organic compound for the host matrix has a general structural formula I

2. An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer is characterized by three principal refractive indices (n_x, n_y and n_z), at least one of which satisfies the following condition where ∂

n_u(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.

3. An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses biaxial properties of B_A-type and is characterized by an in-plane difference of refractive indices Δ

_in(λ

)=|n_y(λ

)−

n_x(λ

)|, which satisfies the condition ∂

Δ

_in(λ

)/∂

λ

≧

0 in at least one subrange of the visible spectral range.

4. 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 Δ

_out(λ

)=|n_z(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

5. An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses biaxial properties of B_A-type and is characterized by an out-of-plane difference of refractive indices Δ

_out(λ

)=|n_z(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

6. 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 Δ

_in(λ

)=|n_y(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_in(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

7. 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 Δ

_in(λ

)=|n_y(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_in(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

8. An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses biaxial properties of A_C-type and is characterized by an in-plane difference of refractive indices Δ

_in(λ

)=|n_y(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_in(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

9. 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 Δ

_out(λ

)=|n_x(λ

)−

n_z(λ

)| which satisfies the condition ∂

Δ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

10. An optically anisotropic compensation panel according to claim 1, wherein the optically anisotropic layer possesses biaxial properties of A_C-type and is characterized by an out-of-plane difference of refractive indices Δ

_out(λ

)=|n_x(λ

)−

n_z(λ

)| which satisfies the condition ∂

Δ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

11. 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 Δ

_out(λ

)=|n_x(λ

)−

n_z(λ

)| which satisfies the condition ∂

Δ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

12. 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 Δ

_out(λ

)=|n_z(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

13. 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 Δ

_in(λ

) obeys the following condition;

spectral dispersion factors (Δ

_in,450/Δ

_in,550) and (Δ

_in,550/Δ

_in,650) are in a range of 0.4-1.0, wherein Δ

_in,450, Δ

_in,550 and Δ

_in,650 are values of the in-plain differences of refractive indices at wavelengths of 450 nm, 550 nm and 650 nm respectively.

14. 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 Δ

_out(λ

) obeys the following condition;

spectral dispersion factors (Δ

_out,450/Δ

_out,550) and (Δ

_out,550/Δ

_out,650) are in a range of 0.4-1.0, wherein Δ

_out,450, Δ

_out,550 and Δ

_out,650 are values of the out-of-plane differences of refractive indices Δ

_out(λ

) at wavelengths of 450 nm, 550 nm and 650 nm respectively.

15. An optically anisotropic compensation panel according to claim 1, wherein polycyclic molecular system Sys is substantially transparent in the visible spectral range.

16. An optically anisotropic compensation panel according to claim 1, wherein Sys has a general structural formula from the list comprising structures II to XLVI:

17. An optically anisotropic compensation panel according to claim 1, wherein the counterion is selected from the list comprising H⁺, NH₄⁺, Na⁺, K⁺, Li⁺, Ba⁺⁺, Ca⁺⁺, Mg⁺⁺, Sr⁺⁺, Cs⁺, Pb⁺⁺, and Zn⁺⁺.

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

19. An optically anisotropic compensation panel according to claim 18, wherein the oligophenyl derivative has a general structural formula corresponding to one of structures 1 to 7:

20. 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;

21. 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;

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

23. An optically anisotropic compensation panel according to claim 22, wherein the acenaphthoquinoxaline derivative comprises carboxylic and/or sulfonic groups and has a general structural formula corresponding to one of structures 30 to 48:

24. 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.

25. An optically anisotropic compensation panel according to claim 24, 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:

26. An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix is characterized by three principal refractive indices (n_x,h, n_y,h and n_z,h) which possess normal spectral dispersion ∂

n_u(λ

)/∂

λ

<

0 in the visible spectral range, and wherein the subscript u is selected from the list comprising x, y and z.

27. An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses biaxial properties of B_A-type and is characterized by an in-plane difference of refractive indices Δ

_in,h(λ

)=|n_y,h(λ

)−

n_x,h(λ

)| possessing a normal spectral dispersion (∂

Δ

_in,h(λ

)/∂

λ

<

0) in the visible spectral range.

28. An optically anisotropic compensation panel according to claim 27, wherein the anisotropic host matrix is further characterized by an out-of-plane difference of refractive indices Δ

_out,h(λ

)=|n_x,h(λ

)−

n_z,h(λ

)| possessing a normal spectral dispersion (∂

Δ

_out,h(λ

)/∂

λ

<

0) in the visible spectral range.

29. An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses biaxial properties of B_A-type and is characterized by an out-of-plane difference of refractive indices Δ

_out,h(λ

)=|n_x,h(λ

)−

n_z,h(λ

)| possessing normal dispersion (∂

Δ

_out,h(λ

)/∂

λ

<

0) in the visible spectral range.

30. An optically anisotropic compensation panel according to any of claim 28 or 29, 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.

31. 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 Δ

_in,h(λ

)=|n_y,h(λ

)−

n_x,h(λ

)| possessing normal dispersion (∂

Δ

_in,h(λ

)/∂

λ

<

0) in the visible spectral range.

32. 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 Δ

_in,h(λ

)=|n_y,h(λ

)−

n_x,h(λ

)| possessing normal dispersion (∂

Δ

_in,h(λ

)/∂

λ

<

0) in the visible spectral range.

33. An optically anisotropic compensation panel according to any of claim 31 or 32, 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.

34. An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses biaxial properties of A_C-type and is characterized by a difference of refractive indices Δ

_out,h(λ

)=|n_x,h(λ

)−

n_z,h(λ

)| possessing a normal spectral dispersion (∂

Δ

_out,h(λ

)/∂

λ

<

0) in the visible spectral range.

35. An optically anisotropic compensation panel according to claim 34, wherein the anisotropic host matrix is further characterized by an in-plane difference of refractive indices Δ

_in,h(λ

)=|n_y,h(λ

)−

n_x,h(λ

)| possessing a normal dispersion (∂

Δ

_in,h(λ

)/∂

λ

<

0) in the visible spectral range.

36. An optically anisotropic compensation panel according to claim 1, wherein the anisotropic host matrix possesses biaxial properties of A_C-type and is characterized by an in-plane difference of refractive indices Δ

_in,h(λ

)=|n_y,h(λ

)−

n_x,h(λ

)| possessing a normal spectral dispersion (∂

λ

_in,h(λ

)/∂

Δ

<

0) in the visible spectral range.

37. 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 Δ

_out,h(λ

)=|n_z,h(λ

)−

n_x,h(λ

)| possessing a normal spectral dispersion (∂

Δ

_out,h(λ

)/∂

λ

<

0) in the visible spectral range.

38. 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 Δ

_out,h(λ

)=|n_x,h(λ

)−

n_z,h(λ

)| possessing a normal spectral dispersion (∂

Δ

_out,h(λ

)/∂

λ

<

0) in the visible spectral range.

39. 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.

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

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

43. An optically anisotropic compensation panel according to claim 1 or 42, wherein the guest particles are optically isotropic particles.

44. An optically anisotropic compensation panel according to claim 1 or 42, wherein the guest particles are optically anisotropic particles.

46. An optically anisotropic compensation panel according to claim 1 or 42, further comprising a substrate.

47. An optically anisotropic compensation panel according to claim 46, 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.

42. 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;

wherein the compensation panel possesses a spectrally controllable dispersion of refractive indices, and

wherein the guest particles are pigments or dye molecules.

45. An optically anisotropic compensation panel according to claim 42, wherein at least one dye molecule has a general structural formula corresponding to structures 71 to 79:

48. 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,

wherein the organic compound has a general structural formula I

49. A color liquid crystal display according to claim 48, further comprising a color filter.

50. A color liquid crystal display according to claim 49, wherein the color filter has a configuration selected from the list comprises stripe, mosaic and delta configurations.

51. A color liquid crystal display according to claim 48, wherein the polycyclic molecular system Sys is substantially transparent in the visible spectral range.

52. A color liquid crystal display according to any of claims 48 or 51, wherein the polycyclic molecular system Sys has a general structural formula from the list comprising structures II to XLVI:

53. A color liquid crystal display according to claim 48, wherein the counterion is selected from the list comprising H⁺, NH₄⁺, Na⁺, K⁺, Li⁺, Ba⁺⁺, Ca⁺⁺, Mg⁺⁺, Sr⁺⁺, Cs⁺, Pb⁺⁺, and Zn⁺⁺.

54. A color liquid crystal display according to claim 48, wherein the organic compound is an oligophenyl derivative.

55. A color liquid crystal display according to claim 54, wherein the oligophenyl derivative has a general structural formula corresponding to one of structures 1 to 7:

56. A color liquid crystal display according to claim 48, wherein the organic compound is a bibenzimidazole derivative and has a general structural formula corresponding to one of structures 8 to 26:

57. A color liquid crystal display according to claim 48, wherein the organic compound is a “

triazine”

derivative and has a general structural formula corresponding to one of structures 27 to 29;

58. A color liquid crystal display according to claim 48, wherein the organic compound is an acenaphthoquinoxaline derivative.

59. A color liquid crystal display according to claim 58, wherein the acenaphthoquinoxaline derivative comprises carboxylic and/or sulfonic groups and has a general structural formula corresponding to one of structures 30 to 48:

60. A color liquid crystal display according to claim 48, wherein the organic compound is a 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivative.

61. A color liquid crystal display according to claim 60, 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:

62. A color liquid crystal display according to claim 48, wherein the optically anisotropic layer is characterized by three principal refractive indices (n_x, n_y and n_z) at least one of which satisfies the condition ∂

n_u(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.

63. A color liquid crystal display according to claim 48, wherein the optically anisotropic layer possesses biaxial properties of B_A-type and is characterized by an in-plane difference of refractive indices Δ

_in(λ

)=|n_y(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_in(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

64. A color liquid crystal display according to claim 63, wherein the optically anisotropic layer is further characterized by an out-of-plane difference of refractive indices Δ

_out(λ

)=|n_z(λ

)−

n_x(λ

)| which satisfies the condition ∂

λ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

65. A color liquid crystal display according to claim 48, wherein the optically anisotropic layer possesses biaxial properties of B_A-type and is characterized by an out-of-plane difference of refractive indices Δ

_out(λ

)=|n_z(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

66. A color liquid crystal display according to claim 48, wherein the optically anisotropic layer possesses uniaxial properties of negative A-type and is characterized by an in-plane difference of refractive indices Δ

_in(λ

)=|n_y(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_in(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

67. A color liquid crystal display according to claim 48, wherein the optically anisotropic layer possesses uniaxial properties of positive A-type and is characterized by an in-plane difference of refractive indices Δ

_in(λ

)=|n_y(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_in(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

68. A color liquid crystal display according to claim 48, wherein the optically anisotropic layer possesses biaxial properties of A_C-type and is characterized by an in-plane difference of refractive indices Δ

_in(λ

)=|n_y(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_in(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

69. A color liquid crystal display according to claim 68, wherein the optically anisotropic layer is further characterized by an out-of-plane difference of refractive indices Δ

_out(λ

)=|n_x(λ

)−

n_z(λ

)| which satisfies the condition ∂

Δ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

70. A color liquid crystal display according to claim 48, wherein the optically anisotropic layer possesses biaxial properties of A_C-type and is characterized by an out-of-plane difference of refractive indices Δ

_out(λ

)=|n_x(λ

)−

n_z(λ

)| which satisfies the condition ∂

Δ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

71. A color liquid crystal display according to claim 48, wherein the optically anisotropic layer possesses uniaxial properties of negative C-type and is characterized by an out-of-plane difference of refractive indices Δ

_out(λ

)=|n_x(λ

)−

n_z(λ

)| which satisfies the condition ∂

Δ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

72. A color liquid crystal display according to claim 48, wherein the optically anisotropic layer possesses uniaxial properties of positive C-type and is characterized by an out-of-plane difference of refractive indices Δ

_out(λ

)=|n_z(λ

)−

n_x(λ

)| which satisfies the condition ∂

Δ

_out(λ

)/∂

λ

≧

0 in at least one wavelength subrange of the visible spectral range.

73. A color liquid crystal display according to any of claims 63 to 64 or 66 to 69, wherein the in-plane difference of refractive indices Δ

_in(λ

) obeys the following condition;

a wavelength dispersion factors (Δ

_in,450/Δ

_in,550) and (Δ

_in,550/Δ

_in,650) are in a range of 0.4-1.0, wherein Δ

_in,450, Δ

_in,550 and Δ

_in,650 are values of the in-plain differences of refractive indices at wavelengths of 450 nm, 550 nm and 650 nm respectively.

74. A color liquid crystal display according to any of claims 64 to 65 or 69 to 72, wherein the out-of-plane difference of refractive indices Δ

_out(λ

) obeys the following condition;

spectral dispersion factors (Δ

_out,450/Δ

_out,550) and (Δ

_out,550/Δ

_out,650) are in a range of 0.4-1.0, wherein Δ

_out,450, Δ

_out,550 and Δ

_out,650 are values of the out-of-plane differences of the refractive indices Δ

_out(λ

) at wavelengths of 450 nm, 550 nm and 650 nm respectively.

75. A color liquid crystal display according to claim 48, 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.

76. A color liquid crystal display according to claim 48, wherein the guest particles are made of at least one inorganic material.

77. A color liquid crystal display according to claim 48, wherein the guest particles are made of at least one organic material.

79. A color liquid crystal display according to claim 48 or 78, wherein the guest particles are optically isotropic particles.

80. A color liquid crystal display according to claim 48 or 78, wherein the guest particles are optically anisotropic particles.

82. A color liquid crystal display according to claim 48 or 78 wherein the compensation panel further comprises a substrate, 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.

83. A color liquid crystal display according to claim 48 or 78, wherein the liquid crystal cell is an in-plane switching mode liquid crystal cell.

84. A color liquid crystal display according to claim 48 or 78, wherein the liquid crystal cell is a vertically-aligned mode liquid crystal cell.

85. A color liquid crystal display according to claim 48 or 78, wherein the compensation panel is located inside the liquid crystal cell.

86. A color liquid crystal display according to claim 48 or 78, wherein the compensation panel is located outside the liquid crystal cell.

78. 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,

wherein the guest particles are pigments or dye molecules.

81. A color liquid crystal display according to claim 78, wherein at least one dye molecule has a general structural formula corresponding to structures 71 to 79: