Patent ID: 9472157
Filing Date: 2016-10-18
CPC Classification: G02F,G09G,H04N

Claim Text:
1. A liquid crystal display device comprising: an array substrate including a plurality of pixel electrodes corresponding to a plurality of pixels arranged in a matrix; a color filter substrate opposed to the array substrate and including color filters corresponding to the plurality of pixels; a liquid crystal layer provided between the array substrate and the color filter substrate; a backlight unit provided on a back surface side of the array substrate, the back surface side being opposite to a liquid crystal layer side of the array substrate; a controller configured to control an application timing of a liquid crystal driving voltage to the pixel electrodes, and a light emission timing of the backlight unit; and a light reception element configured to detect light incident from an observer side, wherein the plurality of pixels are configured to each have a plan-view shape of a parallelogram which is elongated in a lateral direction, and configured such that identical colors are arranged in the lateral direction, and different colors are arranged in a vertical direction, pixels neighboring in the lateral direction of the plurality of pixels have shapes of line-symmetry with respect to a center line of the pixels neighboring in the lateral direction, the plurality of pixels include a picture element composed of two red pixels that are neighboring in the lateral direction, two green pixels that are neighboring in the lateral direction, and two blue pixels that are neighboring in the lateral direction, the plurality of pixels are parallelogrammatic with a long side having an angle γ to the lateral direction, and a short side parallel to the vertical direction, two pixels neighboring in the lateral direction are of the same color and have a V shape or an inverted-V shape, and a pattern of the V shape or the inverted-V shape is repeated in the lateral direction, the color filter substrate includes a black matrix which partitions the pixels, the backlight unit is an edge-lit-type unit including a solid-state light-emission element array, the controller is configured to execute, based on a video signal, synchronization control between the application timing of the liquid crystal driving voltage to the pixel electrodes, and the light emission timing of the backlight unit, the controller is configured to apply a voltage to one or two of the pixel electrodes corresponding to the pixels neighboring in the lateral direction to switch between a three-dimensional image display and a two-dimensional image display, the black matrix is formed between pixels neighboring in the vertical direction and is not formed between pixels neighboring in the lateral direction, liquid crystal molecules of the pixels neighboring in the lateral direction have a negative dielectric constant anisotropy, and, when the liquid crystal driving voltage is applied to the pixel electrodes corresponding to the pixels neighboring in the lateral direction, the liquid crystal molecules rotate horizontally relative to a substrate plane in a direction of the line-symmetry with respect to the center line, and the controller is configured to detect a position of the observer based on data measured by the light reception element and to adjust an emission angle of light emitted by the backlight unit based on the detected position of the observer.