Method and apparatus for arranging light-emitting diodes and light-emitting elements

A method of arranging light-emitting elements, comprising:

• storing characteristic values of said light-emitting elements measured in a characteristic measurement;
• temporarily keeping said light-emitting elements after storing said characteristic values;
• and
• rearranging said light-emitting elements to make said characteristic values of adjacent light-emitting elements substantially equal.

An apparatus for arranging a number of LEDs, comprising:

• a characteristic value measuring unit that performs a characteristic measurement on the LEDs to obtain a characteristic value for the LEDs;
• an arrangement sequence calculation unit that generates an arrangement sequence of the LEDs such that a difference between the characteristic value of adjacent LEDs is minimized;
• and
• a rearrangement unit for rearranging the LEDs in accordance with said arrangement sequence.