In-plane-switching liquid crystal display unit having tinting compensation

An in-plane-switching liquid crystal display unit comprising a two-dimensional matrix of pixel regions each including:

• a first auxiliary region having liquid crystal molecules directed in a first orientation when no electric field is applied thereto;
• a second region having liquid crystal molecules directed in a second orientation extending at 90° with respect to said first orientation when no electric field is applied thereto;
• and
• electric field generating means for generating an in-plane electric field in a liquid crystal sealed layer and applying the in-plane electric field to said liquid crystal molecules;
• wherein said electric field generating means comprises a plurality of parallel pairs of electrodes, said electrodes extending straight in said first region and said second region, and wherein said liquid crystal molecules are orientated at 45° with respect to a direction in which said electrodes extend in said first region and said second region when no electric field is applied thereto.

An in-plane-switching liquid crystal display unit comprising a two-dimensional matrix of pixel regions each including:

• a first region having liquid crystal molecules directed in a first orientation when no electric field is applied thereto;
• a second region having liquid crystal molecules directed in a second orientation which is the same as said first orientation when no electric field is applied thereto;
• and electric field generating means for generating an in-plane electric field to said liquid crystal molecules to rotate the liquid crystal molecules of the first and second regions in opposite directions with respect to each other while maintaining said first orientation and second orientation in symmetric relationship;
• wherein said electric field generating means comprises a plurality of parallel pairs of electrodes disposed in said first region and said second region, said electrodes disposed in said first region extending at 90° with respect to said electrodes disposed in said second region, and wherein each of said first and second orientations extends parallel to a direction bisecting an angle formed between a direction in which the electrodes of the parallel pairs extend in said first region and a direction in which the electrodes of the parallel pairs extend in said second region.