Apparatuses, systems, and methods for microLED (mLED) backplane architectures

A computer-readable storage medium storing program code for causing a data processing system to perform the steps comprising:

• shifting a dynamic current mirror to phase zero, phase zero comprising:
• establishing a first voltage for a sub-pixel mLED control transistor, the first voltage produced using a predetermined reference current, wherein the establishing includes a threshold voltage for the sub-pixel mLED control transistor;
• charging an energy storage device used in the sub-pixel mLED to the first voltage during phase zero;
• and
• shifting the dynamic current mirror to phase one, phase one comprising:
• utilizing the first voltage with the sub-pixel mLED control transistor to pass an illumination current through the sub-pixel mLED.

A sub-pixel micro-LED (mLED) drive circuit to control current through a sub-pixel micro-LED (mLED) of a mLED display using a dynamic current mirror, comprising:

• a sub-pixel mLED control transistor;
• a sub-pixel energy storage device;
• and
• two switches, the two switches are operable in two phases as follows:
• 1. in phase 0 operation, the two switches are configured to charge the sub-pixel energy storage device to a first voltage from a reference current source, and the first voltage includes a threshold voltage for the sub-pixel mLED control transistor;
• 2. in phase 1 operation, the two switches are configured to disconnect from the reference current source and to use the first voltage with the sub-pixel mLED control transistor to pass an illumination current through the sub-pixel mLED.