Privacy Filter Light Adjusting Panel for Display Apparatus

The light adjusting panel is divided into multiple independent elements including first electrode with first slits, second electrode with second slits, and positive liquid crystal layers. Each element can be manufactured and controlled separately, simplifying the overall manufacturing process while maintaining the ability to switch between privacy and sharing modes through coordinated operation of these segmented components.

The patent utilizes changes in the refractive index and alignment state of the positive liquid crystal layer to achieve mode switching. By applying voltage to the electrodes, the liquid crystal molecules reorient, changing the optical parameters of the panel from a scattering state (privacy mode) to a transparent state (sharing mode), thereby achieving adaptability without complex mechanical structures.

The patent replaces complex mechanical tuning mechanisms with an electric field-controlled liquid crystal system. The first and second electrodes generate electric fields that control the orientation of positive liquid crystal molecules, eliminating the need for mechanical adjustment components and thereby improving manufacturing reliability while maintaining mode switching capability.

The light adjusting panel employs a composite structure combining transparent electrodes with positive liquid crystal materials between vertical alignment films. This composite material approach creates a more reliable and manufacturable system compared to traditional tunable scattering films, as each component can be optimized independently and assembled through standard liquid crystal display manufacturing processes.