Driving circuit board, electronic apparatus including driving circuit board, and method of fabricating electronic apparatus

An electronic apparatus comprising:

• a driving circuit board comprising:
• a plurality of driving electrode regions on a first surface of the driving circuit board;
• a plurality of driving electrodes symmetrically arranged in the plurality of driving electrode regions;
• and
• a driving circuit electrically connected to at least one of the plurality of driving electrodes;
• and
• at least one electronic device provided on the driving circuit board and comprising a plurality of pad electrodes symmetrically arranged on a second surface of the electronic device to respectively face the plurality of driving electrodes in the plurality of driving electrode regions on the first surface of the driving circuit board,
• wherein the plurality of driving electrodes comprise at least one dummy electrode that is not connected to the driving circuit, and
• wherein the plurality of driving electrodes further comprise a center driving electrode and at least two sub-driving electrodes symmetrically arranged around the center driving electrode.

A method of manufacturing an electronic apparatus, the method comprising:

• preparing a first substrate having a first upper surface in which a plurality of grooves are formed;
• supplying a plurality of light-emitting devices on the first upper surface of the first substrate;
• aligning the plurality of light-emitting devices in the plurality of grooves;
• preparing a second substrate comprising a second upper surface having a plurality of driving electrode regions corresponding to the plurality of grooves of the first substrate, a plurality of driving electrodes symmetrically arranged on the plurality of driving electrode regions of the second upper surface, and a driving circuit electrically connected to at least one of the plurality of driving electrodes;
• arranging the first substrate and the second substrate such that the plurality of grooves of the first substrate and the plurality of driving electrode regions of the second substrate face each other;
• and
• bonding the plurality of light-emitting devices aligned in the plurality of grooves and the plurality of driving electrodes,
• wherein each of the plurality of light-emitting devices comprises a plurality of pad electrodes each comprising a first surface and a second surface facing each other, the plurality of pad electrodes being symmetrically arranged to correspond to the plurality of driving electrodes on the first surface facing each of the plurality of driving electrode regions, respectively, and
• wherein the plurality of driving electrodes comprise at least one dummy electrode that is not connected to the driving circuit, and
• wherein the plurality of driving electrodes further comprise a center driving electrode and at least two sub-driving electrodes symmetrically arranged around the center driving electrode.