DISPLAY DEVICE
A display device includes a light-emitting module and a color filter. The color filter transmits light provided from the light-emitting module and represents a color green which has a y-coordinate between about 0.565 and about 0.578 in CIE 1931 chromaticity diagram.
1 . A display device comprising:
a light-emitting module to transmit light; and
a color filter to receive light from the light-emitting module and to represent a color green which has a y-coordinate between about 0.565 and about 0.578 in a CIE 1931 chromaticity diagram.
2 . The display device of claim 1 , wherein a transmittance of light having a wavelength between about 410 nm and about 480 nm through the color filter is between about 0% and about 5%.
3 . The display device of claim 1 , wherein the color green has an x-coordinate between about 0.2805 and about 0.2995 in the CIE 1931 chromaticity diagram.
4 . The display device of claim 1 , wherein the color filter comprises a coloring agent configured to represent the color yellow, the coloring agent comprising at least one of a green coloring agent, a pigment, and a dye.
5 . The display device of claim 4 , wherein the coloring agent comprises C.I pigment green 58 , a mono-azo based compound as the pigment, and a pyridone-azo based compound as the dye.
6 . The display device of claim 5 , wherein the pyridone-azo based compound is represented by the following chemical formula:
wherein R 1 , R 2 and R 3 each independently represents one of a hydrogen atom, a hydroxyl group, an alkyl group having from 1 to 30 carbon atoms, an alkenyl group having from 2 to 30 carbon atoms, an oxyalkyl group having from 1 to 30 carbon atoms, a cycloalkyl group having from 3 to 30 carbon atoms, an aryl group having from 6 to 30 carbon atoms, and derivatives or polymers thereof.
7 . The display device of claim 5 , wherein the mono-azo based compound comprises C.I pigment yellow 150.
8 . The display device of claim 1 , wherein the light-emitting module comprises:
a light-emitting chip to emit a blue light; and
a light transforming layer to transform the blue light to a white light, and to emit the white light.
9 . A display device comprising:
a light-emitting module to transmit light; and
a color filter to receive light from the light-emitting module,
wherein the color filter comprises a green coloring agent and a yellow coloring agent, the yellow coloring agent comprising a dye and a pigment at a weight ratio between about 1:13 and about 9:13.
10 . The display device of claim 9 , wherein a transmittance of light having a wavelength between about 410 nm and about 480 nm through the color filter is between about 0% and about 5%.
11 . The display device of claim 9 , wherein the dye of the yellow coloring agent comprises a pyridone-azo based compound and the pigment of the yellow coloring agent comprises a mono-azo based compound.
12 . The display device of claim 11 , wherein the pyridone-azo based compound is represented by the following chemical formula
wherein R 1 , R 2 and R 3 each independently represents one of a hydrogen atom, a hydroxyl group, an alkyl group having from 1 to 30 carbon atoms, an alkenyl group having from 2 to 30 carbon atoms, an oxyalkyl group having from 1 to 30 carbon atoms, a cycloalkyl group having from 3 to 30 carbon atoms, an aryl group having from 6 to 30 carbon atoms, and derivatives or polymers thereof.
13 . The display device of claim 11 , wherein the mono-azo based compound comprises C.I pigment yellow 150.
14 . The display device of claim 9 , wherein the color filter is configured to represent a color green which has a y-coordinate between about 0.565 and about 0.578 in a CIE 1931 chromaticity diagram.
15 . The display device of claim 14 , wherein the color green has an x-coordinate between about 0.2805 and about 0.2995 in a CIE 1931 chromaticity diagram.
16 . The display device of claim 9 , wherein the light-emitting module further comprises:
a light-emitting chip to emit a blue light; and
a light transforming layer to transform the blue light to a white light, and to emit the white light.
17 . A color filter for a display device, comprising:
a green coloring agent; and
a yellow coloring agent comprising a dye and a pigment at a weight ratio between about 1:13 and about 9:13.
18 . A color filter of claim 17 , wherein the dye of the yellow coloring agent comprises a pyridone-azo based compound and the pigment of the yellow coloring agent comprises a mono-azo based compound.
19 . The color filter of claim 18 , wherein the mono-azo based compound comprises C.I pigment yellow 150.
20 . The color filter of claim 18 , wherein the dye of the yellow color agent includes a compound represented by the following chemical formula: