Color filter and color filter array panel

Patent metadata

Field	Value
Publication number	US-10290781-B2
Application number	US-201615357000-A
Country	US
Kind code	B2
Filing date	Nov 21, 2016
Priority date	Oct 26, 2011
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

Provided is a color filter array panel. The color filter array panel according to exemplary embodiments of the present invention includes: a substrate; a color filter disposed on the substrate and including a colorant including at least one of a pigment and a dye, and a solid fluorescent material; and a light source unit supplying light to the color filter, in which the solid fluorescent material is an aggregation induced emission enhancement (AIEE) material of which a liquid state is solidified to increase fluorescence efficiency.

First claim

What is claimed is:

1. A display device, comprising:
a substrate;
a color filter disposed on the substrate and comprising a solid fluorescent material; and
a light source unit configured to supply light to the color filter,
wherein:
the solid fluorescent material is a solidified aggregation induced emission enhancement (AIEE) material, the AIEE material comprising nano particles of a size of about 30 nm to about 40 nm,
wherein:
the solid fluorescent material comprises at least one selected from the group consisting of a compound represented by the following Formula 1, a compound represented by the following Formula 2, a compound represented by the following Formula 3, a compound represented by the following Formula 4, 1-cyano-trans-1,2-bis-(4′-methylbiphenyl)ethylene, and derivatives thereof:

wherein in Formula 2, R 1 , R 2 , R 3 , and R 4 each independently is one selected from the group consisting of hydrogen, a methyl group, an ethyl group, a propyl group, a butyl group, a tetrabutyl group, a pentyl group, a hexyl group, CF 3 , OCH 3 , OCH 2 CH 3 , halogen, OH, and NH 2 , in Formula 3, R 1 , R 2 , R 3 , and R 4 each independently is one selected from the group consisting of hydrogen, a methyl group, an ethyl group, a propyl group, a butyl group, a tetrabutyl group, a pentyl group, a hexyl group, CF 3 , OCH 3 , OCH 2 CH 3 , halogen, OH, and NH 2 , and in Formula 3, X 1 , X 2 , X 3 , and X 4 each independently is one selected from the group consisting of N, O, and S.

2. The display device of claim 1 , wherein:
the solid fluorescent material absorbs and emits light of an ultraviolet wavelength band or a blue wavelength band.

3. The display device of claim 1 , wherein:
the light source unit is configured to supply light having a wavelength of about 330 nm to about 700 nm.

4. The display device of claim 3 , wherein:
the light source unit comprises an ultraviolet light emitting diode and a visible light emitting diode.

5. The display device of claim 1 , wherein:
the light source unit comprises a red phosphor, a green phosphor, a blue phosphor, and an ultraviolet light emitting chip.

6. The display device of claim 1 , wherein:
the light source unit comprises a blue light emitting chip and a yellow phosphor.

7. The display device of claim 1 , wherein:
the light source unit comprises a red phosphor, a green phosphor, and a blue light emitting chip.

8. The display device of claim 1 , wherein:
the light source unit comprises a red phosphor, a green phosphor, a yellow phosphor, and a blue light emitting chip.

9. The display device of claim 1 , further comprising an overcoat disposed on the color filter.

10. The display device of claim 9 , further comprising:
a thin film transistor disposed between the substrate and the color filter; and
a pixel electrode disposed on the overcoat,
wherein the pixel electrode is connected to the thin film transistor through a contact hole.

11. The display device of claim 9 , further comprising a liquid crystal layer disposed between a lower panel and an upper panel.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Young Do
• Ju Jin Ho
• Kang Min
• Shim Woo Sub

Classifications

• G02B5/201

  in the form of arrays · CPC title

• H05B33/14

  characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source} · CPC title

• C09K11/06 Primary

  containing organic luminescent materials · CPC title

• H01L33/504

  Electricity · mapped topic

• C09K2211/1025

  characterised by ligands · CPC title