Light-emitting Panel Compensation Resistor IR Drop

The patent applies local quality by introducing compensation resistors at specific locations in the circuit. Each compensation resistor is positioned at a light-emitting unit's connection point to locally compensate for the IR drop accumulated along the power lines. This localized compensation ensures that each light-emitting unit receives the correct voltage despite being at different distances from the power source, thereby achieving uniform brightness across the panel while maintaining standard circuit manufacturing processes.

The patent merges the compensation resistor with existing circuit elements by integrating them into the power line structure. Rather than adding completely separate compensation components, the design incorporates compensation resistors as part of the power distribution network, allowing them to share physical and electrical pathways with the main power lines. This merging approach reduces the overall device complexity while still achieving the brightness uniformity improvement.

The patent converts the harmful effect of line resistance into a beneficial compensation mechanism. By intentionally adding compensation resistors that match the line resistance values, the design uses the same resistive effect to counterbalance the unwanted IR drop. The compensation resistors are calculated to provide exactly the right amount of voltage adjustment, transforming the energy loss from a purely harmful factor into a controlled parameter that achieves brightness uniformity while minimizing additional power consumption.