Light-emitting device and manufacturing method thereof

1. A method of manufacturing a light-emitting device, comprising:

providing a first substrate, a first light-emitting element on the first substrate, and a second light-emitting element on the first substrate, the first substrate comprising a first adhesive portion and a second adhesive portion which are separated from each other;

providing a second substrate, a third light-emitting element on the second substrate, and a fourth light-emitting element on the second substrate; and

connecting the third light-emitting element to the first adhesive portion and the second adhesive portion;

wherein, in the connecting step, the fourth light-emitting element is overlapped with the first light-emitting element;

wherein, after the connecting step, the third light-emitting element is arranged between the first light-emitting element and the second light-emitting element without being interposed by any other light-emitting element thereamong, and a distance between the third light-emitting element and the first light-emitting element is different from a distance between the third light-emitting element and the second light-emitting element.

2. The method of claim 1 , further comprising forming a connecting portion between the first adhesive portion and the first substrate.

3. The method of claim 1 , further comprising forming an intermediate layer between the third light-emitting element and the second substrate.

4. The method of claim 3 , wherein, the intermediate layer is connected to the third light-emitting element.

5. The method of claim 3 , further comprising forming a first protrusion in the intermediate layer to push the third light-emitting element away from the second substrate.

6. The method of claim 3 , further comprising forming a plurality of protrusions in the intermediate layer, wherein, the plurality of protrusions is configured to collectively push the third light-emitting element away from the second substrate.

7. The method of claim 1 , wherein, the first light-emitting element is configured to emit a light with a first peak wavelength, the second light-emitting element is configured to emit a light with a second peak wavelength, and the first peak wavelength is different from the second peak wavelength.

8. The method of claim 1 , where, the first light-emitting element, the second light-emitting element, and the third light-emitting element are configured to emit a red light, a blue light, and a green light, respectively.

9. A method of manufacturing a light-emitting device, comprising:

providing a first substrate, a first light-emitting element on the first substrate, and a second light-emitting element on the first substrate, the first substrate comprising a first adhesive portion and a second adhesive portion which are separated from each other;

providing a second substrate comprising an intermediate layer, and a third light-emitting element on the second substrate;

forming a first protrusion in the intermediate layer to push the third light-emitting element away from the second substrate;

connecting the third light-emitting element to the first adhesive portion and the second adhesive portion;

wherein, after the connecting step, the third light-emitting element is arranged between the first light-emitting element and the second light-emitting element without being interposed by any other light-emitting element thereamong, and a distance between the third light-emitting element and the first light-emitting element is different from a distance between the third light-emitting element and the second light-emitting element.

10. The method of claim 9 , further comprising forming a connecting portion between the first adhesive portion and the first substrate.

11. The method of claim 9 , further comprising forming a second protrusion in the intermediate layer, wherein the first protrusion and the second protrusion are configured to collectively push the third light-emitting element to the first substrate.

12. A method of manufacturing a light-emitting device, comprising:

providing a first substrate, a first light-emitting element on the first substrate, and a second light-emitting element on the first substrate, the first substrate comprising a first adhesive portion and a second adhesive portion which are separated from each other;

providing a second substrate comprising an intermediate layer, and a third light-emitting element on the second substrate, the third light-emitting element comprising a first electrode and a second electrode which have different polarities;

forming a first protrusion in the intermediate layer to push the third light-emitting element to the first substrate;

connecting the first electrode to the first adhesive portion, and connecting the second electrode to the second adhesive portion;

wherein, after the connecting step, the third light-emitting element is arranged between the first light-emitting element and the second light-emitting element without being interposed by any other light-emitting element thereamong, and a distance between the third light-emitting element and the first light-emitting element is different from a distance between the third light-emitting element and the second light-emitting element.

13. The method of claim 12 , further comprising forming a second protrusion in the intermediate layer, the first protrusion and the second protrusion are configured to collectively push the third light-emitting element to the first substrate.

14. The method of claim 12 , further comprising forming a first connecting portion and a second connecting portion on the first substrate, wherein, the first connecting portion is covered by the first adhesive portion, and the second connecting portion is covered by the second adhesive portion.