{
  "$type": "site.standard.document",
  "description": "A display device comprising a spatial light modulator having a display polariser arranged on one side of the spatial light modulator is provided with an additional polariser arranged on the same side as the display polariser and a polar control retarder between the additional polariser and the…",
  "path": "/patents/1349126",
  "publishedAt": "2023-08-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H04N9/3114",
    "RealD Spark, LLC"
  ],
  "textContent": "A display device comprising a spatial light modulator having a display polariser arranged on one side of the spatial light modulator is provided with an additional polariser arranged on the same side as the display polariser and a polar control retarder between the additional polariser and the display polariser. The polar control retarder includes a liquid crystal retarder having two surface alignment layers disposed adjacent to a layer of liquid crystal material on opposite sides. The surface alignment layers provide alignment in the adjacent liquid crystal material with a twist. The out-of-plane orientation of the twisted layer of liquid crystal material is modified across at least one region of the display device to provide a pupillated transmission function, achieving increased luminance uniformity to a display user and increased uniformity of security factor to an off-axis snooper, or reduced distraction across the display to the driver in an automotive application.",
  "title": "Display device with uniform off-axis luminance reduction"
}