The new panel's innovation focuses on the primary RGB Tandem structure, which is LG Display's proprietary technology that uses independent stacks of RGB elements to generate light. It first used a three-stack light source, consisting of two layers of blue elements emitting relatively low energy wavelengths with red, green and yellow elements in one layer.
The primary RGB tandem structure applied to fourth-generation OLED TV panels arranges the light source into four stacks by combining two layers of blue elements and independent layers of red and green elements. This improves maximum brightness by increasing the amount of light produced by each layer compared to the previous structure.