OLED Display Substrate Data Line Sharing for Aperture Ratio

The patent merges the data line connections for R and B sub-pixels by having them share a common data line. This reduces the total number of data lines required, thereby increasing the aperture ratio while maintaining the same resolution. The merging is achieved through time-division multiplexing where the shared data line provides data signals to different sub-pixels at different time periods.

The patent makes the data line universal by enabling it to serve multiple functions: it provides data signals to both R sub-pixels and B sub-pixels at different time periods. This multi-functionality reduces the number of dedicated data lines needed, increasing the aperture ratio without compromising resolution.

The patent combines multiple data line functions into a single shared data line that serves both R and B sub-pixels. This merging reduces the total number of data lines from three per pixel unit (R, G, B dedicated lines) to two (shared R/B line and dedicated G line), thereby reducing device complexity while maintaining high resolution.

The patent employs periodic action through time-division multiplexing, where the shared data line alternates between providing data signals to R sub-pixels during a first time period and to B sub-pixels during a second time period. This periodic switching enables a single data line to serve multiple sub-pixels, reducing the overall number of data lines required.