Liquid crystal display element, image display apparatus, method for driving image display apparatus, and portable device

摘要

A display apparatus includes: a liquid crystal display element in which a plurality of display units including at least a pixel that displays an image for a first eyepoint and a pixel that displays an image for a second eyepoint are arranged in a matrix shape; an optical unit which distributes light emitted from the pixel that displays the image for the first eyepoint and light emitted from the pixel that displays the image for the second eyepoint in mutually different directions; a first control electrode and a second control electrode disposed on each pixel in the display units; and a plurality of domain regions of which the orientation is controlled by a diagonal electric field or a lateral electric field formed by the first control electrode and the second control electrode and which have different liquid crystal molecule orientation states.

主权项

1. An image display apparatus comprising:
a liquid crystal display element in which a plurality of display units including at least a pixel that displays an image for a first eyepoint and a pixel that displays an image for a second eyepoint are arranged in a matrix shape; optical means which distributes light emitted from the pixel that displays the image for the first eyepoint and light emitted from the pixel that displays the image for the second eyepoint in mutually different directions; a first control electrode and a second control electrode disposed on each pixel in the display units; and a plurality of domain regions of which an orientation of liquid crystal molecules is controlled by a diagonal electric field or a lateral electric field formed by the first control electrode and the second control electrode and which have different liquid crystal molecule orientation states, wherein, assuming that a direction of the light distributed by the optical means is a first direction and a direction orthogonal to the first direction is a second direction, the optical principal axis of the optical means effectively passes through the center points of the display units and extends in the second direction; each pixel in the display units is disposed along the first direction; overlapping regions which overlap each other in the second direction are formed on each pixel adjacent to the first direction; and the display units arranged in the second direction in the overlapping regions comprise different electric field structures which are formed depending on the display units, and respective domain regions disposed according to the electric field structures are disposed along the optical principal axis, and wherein the second control electrode disposed on an upper layer of the first control electrode via an insulating film comprises a plurality of slits extending in the first direction; any one of the control electrodes is composed of a pixel electrode which can be independently driven in each of the pixels; and a section between the pixel electrodes adjacent to each other in the first direction tilts in a direction different from the second direction in the overlapping region and is repeatedly disposed across the optical principal axis in each of the display units arranged in the second direction, wherein assuming that an angle between the second direction and a liquid crystal initial orientation direction θLC is (90-θ) degree(s) and an angle between the second direction and a tilt direction between the pixel electrodes is φ, a first region in which an angle between a liquid crystal initial orientation direction θLC and a liquid crystal driving electric field direction φE satisfies (90-θ) degree(s), a second region in which an angle between a liquid crystal initial orientation direction θLC and a liquid crystal driving electric field direction φE satisfies (φ+θ) degree(s), and a third region in which an angle between a liquid crystal initial orientation direction θLC and a liquid crystal driving electric field direction φE satisfies (φ-θ) degree(s) are disposed on at least the optical principal axis and are periodically disposed along the second direction.