Backlight including dot light emitting devices having at least two different brightness ranks and method for manufacturing same

A method for manufacturing a backlight comprising dot light emitting devices arranged in a plane manner, the method comprising:

• preparing a plurality of dot light mounting devices of substantially similar color having at least two different brightness ranks into which the dot light emitting devices are classified in accordance with brightness, each of said at least two different brightness ranks having a known center value of brightness;
• and
• mounting the plurality of dot light emitting devices in a plurality of blocks, each block comprising at least two dot light emitting devices of different brightness ranks, so that the number of the dot light emitting devices provided in each of the plurality of blocks is substantially uniform across the plurality of blocks and a total of center values of the brightness ranks of the dot light emitting devices in each of the plurality of blocks is substantially uniform across the plurality of blocks.

A method for manufacturing a backlight comprising dot light emitting devices arranged in a first plane manner, the method comprising:

• preparing a plurality of dot light emitting devices of substantially identical structure having a least two different brightness ranks into which the dot light emitting devices are classified in accordance with brightness;
• and
• mounting the plurality of dot light emitting devices in a plurality of blocks, each block comprising at least two dot light emitting devices of different brightness ranks, so that the number of the dot light emitting devices provided in each of the plurality of blocks is substantially uniform across the plurality of blocks and a total brightness associated with the brightness ranks of the dot light emitting devices provided in each of the plurality of blocks provides a substantially uniform brightness distribution cross the plurality of blocks.

A method for manufacturing a backlight comprising dot light emitting devices arranged in a plane manner, the method comprising:

• preparing a plurality of dot light mounting devices of substantially identical structure having at least two different brightness ranks into which the dot light emitting devices are classified in accordance with brightness, each of said at least two different brightness ranks having a known center value of brightness;
• and
• mounting the plurality of dot light emitting devices in a plurality of blocks, each block comprising at least two dot light emitting devices of different brightness ranks, so that the number of the dot light emitting devices provided in each of the plurality of blocks is substantially uniform across the plurality of blocks and a total of center values of the brightness ranks of the dot light emitting devices in each of the plurality of blocks is substantially uniform across the plurality of blocks.