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

A method to operate a row-based illumination period counter for a micro-LED (mLED) display, comprising:

• generating an ON-state signal at a start of an illumination period, wherein the ON-state signal is sent to a row of sub-pixels of the mLED display and the row of sub-pixels switches to an ON state emitting light;
• generating an OFF-state signal, the generating the OFF-state signal further comprising:
• incrementing a first counter, the incrementing the first counter triggered by an input clock signal, the incrementing the first counter proceeding up to a maximum count value, and when the maximum count value is reached, a first output is generated and the incrementing the first counter starts over;
• receiving the first output at a second counter;
• incrementing the second counter each time the first output is received, wherein the incrementing the second counter continues until a maximum illumination count is reached;
• and
• outputting a count value of the second counter to the row of sub-pixels, wherein at each sub-pixel in the row of sub-pixels, the count value is compared with a stored sub-pixel data value and each sub-pixel in the row of sub-pixels transitions to an OFF state, not emitting light, when a stored sub-pixel data value is equal to or greater than the count value.

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

• generating an ON-state signal at a start of an illumination period, wherein the ON-state signal is sent to a row of sub-pixels of a mLED display and the row of sub-pixels switches to an ON-state emitting light;
• generating an OFF-state signal, the generating the OFF-state signal further comprising:
• incrementing a first counter, the incrementing the first counter triggered by an input clock signal, the incrementing the first counter proceeding up to a maximum count value, and when the maximum count value is reached, a first output is generated and the incrementing the first counter starts over;
• receiving the first output at a second counter;
• incrementing a second counter each time the first output is received, wherein the incrementing the second counter continues until a maximum illumination count is reached;
• and
• outputting a count value of the second counter to the row of sub-pixels, wherein at each sub-pixel in the row of sub-pixels, the count value is compared with a stored sub-pixel data value and each sub-pixel in the row of sub-pixels transitions to an OFF state, not emitting light, when a stored sub-pixel data value is equal to or greater than the count value.