Color filter and display device
The present disclosure pertains to a color filter for a display device, which has at least one color filter element for generating a predefined color in response to incident light, wherein the at least one color filter element includes a Perovskite material.
1. A color filter for a display device, comprising:
a first color filter element for generating a predefined color in response to incident light, wherein
the first color filter element includes a Perovskite material that is not a quantum dot material,
the first color filter element is a red light spectrum color filter, and
the color filter outputs all components for generating white light.
2. The color filter of claim 1 , further comprising a second color filter element that includes a Perovskite material that is not a quantum dot material, wherein the one second color filter element is a blue light spectrum color filter.
3. The color filter of claim 2 , wherein the Perovskite material includes at least one of the following: CsPbCl 2 Br, CH 3 NH 3 CsPbCl 2 Br, CHNHNH 2 PbCl 2 Br.
4. The color filter of claim 1 , further comprising a second color filter element that includes a Perovskite material that is not a quantum dot material, wherein the second color filter element is a green light spectrum color filter.
5. The color filter of claim 4 , wherein the Perovskite material includes at least one of the following: CsPbBr 3 , CH 3 NH 3 CsPbBr 3 , or Cs 0.5 Rb 0.5 PbBr 3 .
6. The color filter of claim 1 , wherein the Perovskite material includes at least one of the following: CsPbI 3 , CH 3 NH 3 CsPbI 3 , CH 3 NH 3 SnBr 1.5 I 1.5 , CsSnBr 1.5 I 1.5 .
7. The color filter of claim 1 , wherein the Perovskite material is based on the formula ABX 3 , wherein the A is an inorganic alkali or an organic alkyl ammonium, B is a metal or a rare earth, and X is of the group of halogens.
8. The color filter of claim 7 , wherein A is at least one of K, Rb, Cs, CH 3 NH 3 , CH 3 CH 2 NH 3 , CHN 2 H 3 , B is at least one of Y, Zr, Hf, Sn, Ce, Tc, Al, SC, V, Cr, Mn, Fe, Co, Ga, Ni, Cu, Zn, Nb, and X is at least one of Cl, Br, I.
9. The color filter of claim 1 , further comprising a light absorption layer on the first color filter element for absorbing light which incidents on and penetrates through the first color filter element.
10. A display device, comprising:
a color filter, the color filter including first color filter element for generating a predefined color in response to incident light, wherein
the first color filter element includes a Perovskite material that is not a quantum dot material,
the first color filter element is a red light spectrum color filter, and
the color filter outputs all components for generating white light; and
a light source for illuminating the color filter, wherein the incident light from the light source is a subset of white light.
11. The display device of claim 10 , further comprising a second color filter element that includes a Perovskite material that is not a quantum dot material, wherein the second color filter element is a blue light spectrum color filter.
12. The display device of claim 11 , wherein the Perovskite material includes at least one of the following: CsPbCl 2 Br, CH 3 NH 3 CsPbCl 2 Br, CHNHNH 2 PbCl 2 Br.
13. The display device of claim 10 , further comprising a second color filter element that includes a Perovskite material that is not a quantum dot material, wherein the second color filter element is a green light spectrum color filter.
14. The display device of claim 13 , wherein the Perovskite material includes at least one of the following: CsPbBr 3 , CH 3 NH 3 CsPbBr 3 , or Cs 0.5 Rb 0.5 PbBr 3 .
15. The display device of claim 10 , wherein the Perovskite material includes at least one of the following: CsPbI 3 , CH 3 NH 3 CsPbI 3 , CH 3 NH 3 SnBr 1.5 I 1.5 , CsSnBr 1.5 I 1.5 .
16. The display device of claim 10 , wherein the Perovskite material is based on the formula ABX 3 , wherein the A is an inorganic alkali or an organic alkyl ammonium, B is a metal or a rare earth, and X is of the group of halogens.
17. The display device of claim 16 , wherein A is at least one of K, Rb, Cs, CH 3 NH 3 , CH 3 CH 2 NH 3 , CHN 2 H 3 , B is at least one of Y, Zr, Hf, Sn, Ce, Tc, Al, SC, V, Cr, Mn, Co, Ga, Mg, Ni, Cu, Zn, Nb, and X is at least one of Cl, Br, I.
18. The display device of claim 10 , further comprising a light absorption layer on the first color filter element for absorbing light which incidents on and penetrates through the color filter element.
19. The display device of claim 10 , wherein the subset of white light is a second color, different from the predefined color.
20. The display device of claim 19 , wherein the color filter includes no filter or a transparent filter for the second color.
21. The color filter of claim 1 , wherein the color filter includes no filter or a transparent filter for a second color, different from the predefined color.
22. The color filter of claim 21 , wherein the incident light has a wavelength region corresponding to the second color.