Patent ID: 8982040
Filing Date: 2015-03-17
Classification: G09G,H04N

Abstract:
1. A liquid crystal display device for displaying a 3D display and a 2D display, comprising: a display panel including an array substrate, a counter substrate, a liquid crystal layer held therebetween, and a plurality of pixels arranged in a matrix; and a lighting device to illuminate the display panel; wherein the array substrate includes a plurality of gate lines extending in a column direction and a plurality of source lines in a row direction along which the plurality of pixels are arranged, and a driving device for sequentially driving the gate lines, the lighting device includes a first lighting unit, a second lighting unit, and a lighting driver to light on and light off the first and second lighting units independently, the first lighting unit includes a first light source arranged on a scanning starting side of the gate lines and a first light guide plate for emitting light from the first light source to the display panel, the second lighting unit includes a second light source arranged on a scanning terminating side of the gate lines and a second light guide plate for emitting light from the second light source to the display panel, in the 2D display operation, the lighting driver lights on the second lighting unit after lighting on the first lighting unit and during lighting on the first lighting unit, and lights off the second lighting unit after lighting off the first lighting unit in a period between a starting time to write a first signal and a finishing time to write a second signal in the plurality of pixels, and in the 3D display operation, the lighting driver lights on the first lighting unit and the second lighting unit by turns.