Light Guide Plate Optical Pattern for Leakage Prevention

The patent converts the harmful light leakage at the insertion hole into a beneficial effect by introducing a light blocking member that redirects the leaked light onto the diffusion plate. This ensures the light that would otherwise be wasted or cause glare is instead utilized to illuminate the display panel, transforming the harmful leakage into useful illumination while maintaining a compact light guide plate design

The patent introduces a light blocking member as an intermediary element positioned between the insertion hole and the diffusion plate. This intermediary component serves dual functions: it blocks the direct light leakage path that would compromise image quality, and simultaneously redirects the light onto the diffusion plate to maintain proper illumination. This mediator resolves the contradiction by enabling small light guide plate size without sacrificing image quality

The patent segments the light guiding function from the display panel boundaries by introducing a light blocking member that captures light at the insertion hole and redirects it onto the diffusion plate. This segmentation allows the light guide plate to be smaller than the display panel, as the light blocking member ensures proper light distribution across the entire display panel area even when the light guide plate dimensions are reduced

The patent solves the size limitation by utilizing the vertical dimension and light redirection rather than expanding the horizontal light guide plate area. The light blocking member redirects light in a different dimensional path, allowing the light guide plate to be compact while still providing adequate illumination for a larger display panel through strategic light redistribution in three-dimensional space