Transfer method and transfer device of light-emitting element for display
AssigneeSeoul Viosys Co., Ltd.
InventorsIk Kyu YOU, Jin Seok YANG
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Abstract
A transfer method of a light-emitting element for a display, according to one or more embodiments of the present disclosure, comprises: producing a wafer having unit pixels; cutting the wafer on a temporary substrate to unify the unit pixels; measuring electrical or optical characteristics of the unified unit pixels; and transferring, to a carrier substrate, the unit pixels selected according to the electrical or optical characteristics, wherein the selected unit pixels are transferred to the carrier substrate in predetermined area-units encompassing a plurality of unit pixels.
Claims20
A transferring method for a light emitting device for a display, comprising:
- manufacturing a wafer having unit pixels;
- cutting the wafer on a temporary substrate to singularize the unit pixels;
- measuring electrical or optical characteristics of the singularized unit pixels;
- and
- transferring unit pixels selected according to the electrical or optical characteristics to a carrier substrate,
- wherein the selected unit pixels are transferred to the carrier substrate in a unit of a predetermined area encompassing a plurality of unit pixels.
A transferring apparatus for a light emitting device for a display, comprising:
- a loading unit for supplying a temporary substrate to which singularized unit pixels are attached;
- a wafer stage on which the temporary substrate supplied from the loading unit is located;
- a light source unit irradiating ultraviolet rays to the unit pixels on the temporary substrate under the wafer stage;
- a picker unit for picking up and transporting the unit pixels irradiated with ultraviolet rays on the temporary substrate;
- and
- a bin stage on which the carrier substrate on which the unit pixels transported by the picker unit are disposed is located,
- wherein the light source unit irradiates ultraviolet rays in a unit of a predetermined area to unit pixels selected based on electrical or optical measurement data.
Dependencies are inferred from the claim text.