Semiconductor light emitting device and display device using the same

A semiconductor light emitting device comprising:

• a first LED;
• a second LED having a forward direction threshold voltage lower than that of the first LED, the second LED being connected in parallel with the first LED;
• and
• at least one voltage compensating diode connected in series to the second LED, but not to the first LED, so that the first and second LEDs are caused to emit light using the same driving voltage.

A semiconductor light emitting device, comprising:

• a first LED emitting at least one of blue light and green light;
• a protection circuit comprising Zener diodes connected in series in opposite directions to each other;
• and
• a red light emitting circuit comprising:
• a second LED emitting a red light, and at least one voltage compensating diode connected in series to the second LED,
• wherein the first LED, the protection circuit and the red light emitting circuit are connected in parallel so that leakage current does not flow through the LEDs when arranged in matrix form.

A semiconductor light emitting device, comprising:

• a first LED;
• a protection circuit comprising Zener diodes connected in series in opposite directions to each other, wherein the first LED and the protection circuit are connected in parallel;
• another LED having a lower forward direction threshold voltage than the first LED, and at least one voltage compensating diode connected in series to the another LED having the lower forward direction threshold voltage;
• and
• wherein each of the first and the another LEDs can be turned on to emit light, without the other of the LEDs being turned on to emit light.