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AssigneeToshiba Matsushita Display Technology Co., Ltd.
InventorsShigesumi Araki, Kazuhiro Nishiyama, Mitsutaka Okita, Daiichi Suzuki
Estimating the term…
A liquid crystal display device includes a liquid crystal display panel having pixels, a light source which illuminates the display panel, and a control unit which controls the display panel and the light source. The control unit includes an insertion unit which causes the pixel to store a first voltage corresponding to a video signal in a first period within one frame period and to store a second voltage corresponding to a non-video signal in a second period that follows the first period, and a driving unit which enables the light source at least in a period corresponding to the first period in which the first voltage is held in the pixel, and disables the light source in a period corresponding to the second period in which the second voltage is held in the pixel, and is configured to set the first and second voltages at different independent values.
A liquid crystal display device comprising:
A driving method of a liquid crystal display device comprising an OCB liquid crystal display panel which includes a pair of substrates and an OCB liquid crystal layer that is held between the pair of substrates, a surface light source device which illuminates the liquid crystal display panel, and a control unit which controls the liquid crystal display panel and the surface light source device, the liquid crystal display panel including a plurality of display pixels which are arrayed in a matrix, the method comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Control of matrices with row and column drivers: using an active matrix
Control of illumination source: using several illumination sources separately controlled corresponding to different display panel areas, e.g.…
Related to liquid crystal pixels: use of a bi-refringent liquid crystal, optically controlled bi-refringence [OCB] with bend and splay states, or…
Details of the generation of driving signals: precharge or discharge of pixel before applying new pixel voltage
About 2 years 2 months of term left · ends 27 Dec 2028 (estimated)
This application is based upon and claims the benefit of priority from prior Japanese Patent Applications No. 2005-346821, filed Nov. 30, 2005; and No. 2006-302543, filed Nov. 8, 2006, the entire contents of both of which are incorporated herein by reference.
1. Field of the Invention
The present invention relates generally to a liquid crystal display device and a method of driving the liquid crystal display device, and more particularly to a liquid crystal display device including an OCB liquid crystal and a method of driving this liquid crystal display device.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention, and together with the general description given above and the detailed description of the embodiments given below, serve to explain the principles of the invention.
FIG. 1 schematically shows an example of the structure of a liquid crystal display device according to an embodiment of the invention;
FIG. 2 is a view for describing an example of the structure of a backlight of the liquid crystal display device shown in FIG. 1;
An embodiment of the present invention will now be described with reference to the accompanying drawings.
As is shown in FIG. 1 and FIG. 2, a liquid crystal display device 1 according to the embodiment includes a liquid crystal display panel 3, a backlight 2 which illuminates the liquid crystal display panel 3, and a control unit 10 which controls the display panel 3 and backlight 2.
The liquid crystal display panel 3 includes a pair of substrates, i.e., an array substrate 32 and a counter-substrate 34, and a liquid crystal layer LQ which is held between the array substrate 32 and the counter-substrate 34. As shown in FIG. 2, the liquid crystal display panel 3 includes a display section DYP which is composed of a plurality of display pixels PX that are arrayed in a matrix.