64‐3: Switchable Viewing‐Angle Control Film for Self‐Emissive Displays

Viewing angle controllable display changes the viewing angle between wide and narrow viewing angles modes as needed for many applications such as display information protection or peeping prevention An active switchable film structure (SFS) composed of a fix barrier layer and a switchable barrier layer was proposed to control the divergence angle of a light source in this paper. The switchable function in the SFS is achieved by the patterned micro‐structure filled with dye doped PDLC (polymeric dispersed liquid crystal) mixture The active privacy switch self emissive display was demonstrated by combining the SFS on an OLED display. Such active switch viewing OLED structure is proposed to apply in the automobile application for safety improvement