Display device

A display device comprising:

• a plurality of light emitting elements on a first substrate;
• a second substrate facing the first substrate;
• a partition wall on one surface of the second substrate facing the first substrate, and including a plurality of openings;
• a plurality of color filters in the plurality of openings;
• wavelength conversion layers on the plurality of color filters, respectively, and configured to convert wavelengths of light emitted from the plurality of light emitting elements;
• an adhesive layer adhering the first substrate and the second substrate to each other;
• and
• a first passivation layer covering the partition wall and the wavelength conversion layers,
• wherein the partition wall comprises a silicon single crystal, and
• wherein one surface of the first passivation layer that is adjacent to the light emitting elements is flat.

A display device comprising:

• a first substrate and a second substrate facing each other, the first and second substrates comprising a first emission area configured to emit first light, a second emission area configured to emit second light, and a third emission area configured to emit third light;
• a plurality of light emitting elements on the first substrate in the first emission area, the second emission area, and the third emission area;
• a partition wall on one surface of the second substrate facing the first substrate, and including a plurality of openings corresponding to the first emission area, the second emission area, and the third emission area;
• a plurality of color filters in the plurality of openings;
• wavelength conversion layers on the plurality of color filters, respectively;
• and
• an adhesive layer overlapping with the plurality of light emitting elements in a thickness direction, and located between the wavelength conversion layers and the light emitting elements in the thickness direction to adhere the first substrate and the second substrate to each other,
• wherein the partition wall comprises a silicon single crystal, and
• wherein the plurality of openings include a first opening corresponding to the first emission area, a second opening corresponding to the second emission area, and a third opening corresponding to the third emission area.