Display device and manufacturing method of the same

1 . A display device comprising:

a display panel; and

a color conversion member disposed on the display panel,

wherein

the color conversion member comprises

a plurality of partition walls disposed on the display panel, and spaced apart from each other, and

a color control part disposed between the plurality of partition walls,

each of the plurality of partition walls comprises

a first sub partition wall including a scattering body, and

a second sub partition wall disposed on the first sub partition wall, and including a liquid repellent, and

the second sub partition wall has a higher light transmittance than the first sub partition wall.

2 . The display device of claim 1 , wherein the second sub partition wall comprises:

a first layer adjacent to the first sub partition wall, and including a first base resin; and

a second layer disposed on the first layer, and including the first base resin and the liquid repellent.

3 . The display device of claim 1 , wherein

the first sub partition wall has a height of about 5 μm to about 15 μm in a thickness direction of the display panel, and

the second sub partition wall has a height of about 0.5 μm to about 5 μm in the thickness direction of the display panel.

4 . The display device of claim 1 , wherein the scattering body has a weight of about 5 wt % to about 30 wt % with respect to a total weight of the first sub partition wall.

5 . The display device of claim 1 , wherein the first sub partition wall further comprises a pigment.

6 . The display device of claim 5 , wherein the pigment has a weight of about 0.5 wt % to about 5 wt % with respect to a total weight of the first sub partition wall.

7 . The display device of claim 5 , wherein the first sub partition wall further comprises a second base resin in which the scattering body and the pigment are dispersed.

8 . The display device of claim 1 , wherein the second sub partition wall does not comprise the scattering body and a pigment.

9 . The display device of claim 1 , wherein the second sub partition wall has a light transmittance of about 15% or more for light in a wavelength range of about 750 nm to about 900 nm.

10 . The display device of claim 1 , wherein the liquid repellent comprises fluorine.

11 . The display device of claim 1 , wherein

the display panel comprises a light-emitting element which emits first color light, and

the color control part comprises:

a first color control part including first quantum dots which convert the first color light to second color light having a longer wavelength range than the first color light;

a second color control part including second quantum dots which convert the first color light to third color light having a longer wavelength range than the first color light and the second color light; and

a third color control part which transmits the first color light.

12 . The display device of claim 11 , wherein the color conversion member further comprises a color filter layer disposed on the color control part, and

the color filter layer comprises:

a first color filter part which transmits the second color light;

a second color filter part which transmits the third color light;

a third color filter part which transmits the first color light; and

a light-blocking part disposed between the first to third color filter parts.

13 . A display device comprising:

a display panel; and

a color conversion member disposed on the display panel,

wherein

the color conversion member comprises a plurality of partition walls disposed on the display panel, and spaced apart from each other, and

each of the plurality of partition walls comprises

a first sub partition wall including a scattering body and a pigment, and

a second sub partition wall disposed on the first sub partition wall, including a liquid repellent, and not including the scattering body and the pigment.

14 . A manufacturing method of a display device, the method comprising:

preparing a substrate; and

providing a plurality of partition walls on the substrate,

wherein the providing the plurality of partition walls comprises

providing a coating layer including a scattering body,

forming a preliminary first sub partition wall by exposing and developing the coating layer,

providing, on the preliminary first sub partition wall, a preliminary second sub partition wall including a liquid repellent, and

exposing and developing the preliminary first sub partition wall and the preliminary second sub partition wall, and

the preliminary second sub partition wall has a higher light transmittance than the preliminary first sub partition wall.

15 . The manufacturing method of claim 14 , wherein

the preparing the substrate comprises providing an align key on the substrate, and

the providing the coating layer comprises providing the coating layer to cover the align key.

16 . The manufacturing method of claim 15 , wherein the forming the preliminary first sub partition wall comprises exposing the align key by exposing and developing the coating layer.

17 . The manufacturing method of claim 16 , wherein the providing the preliminary second sub partition wall comprises providing the preliminary second sub partition wall to cover the align key.

18 . The manufacturing method of claim 17 , further comprising:

aligning mask patterns on the substrate using the align key, before the exposing and developing the preliminary first sub partition wall and the preliminary second sub partition wall.

19 . The manufacturing method of claim 14 , wherein the preliminary second sub partition wall has a light transmittance of about 15% or more for light in a wavelength range of about 750 nm to about 900 nm.

20 . The manufacturing method of claim 14 , wherein in the exposing and developing the preliminary first sub partition wall and the preliminary second sub partition wall, the liquid repellent is phase-separated onto the preliminary second sub partition wall.