Abstract: According to one embodiment, a display includes pixel electrodes arranged in a matrix, gate lines extending along rows, signal lines extending along columns, storage capacitance lines extending along the rows to superpose a voltage on the pixel electrodes, a counterelectrode opposed to the pixel electrodes, a driver to drive the gate lines, the signal lines, and the storage capacitance lines, and a controller to control the driver. The controller sequentially drives the gate lines to write from the signal lines to the pixel electrodes and, after the write to the pixel electrodes, changes a potential of each of the storage capacitance lines to cause alignment of the liquid crystal layer to make a transition from splay alignment to bend alignment.

Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal display panel, a first illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a first emission direction, a second illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a second emission direction different from the first emission direction, and a controller configured to control the liquid crystal display panel, the first illumination unit and the second illumination unit in a first display mode in which 3D display with power saving is effected, and in a second display mode in which 3D display with a wider viewing angle than in the first display mode is effected.

Abstract: According to one embodiment, a display device includes an array substrate including pixel electrodes arranged in a matrix, gate lines and auxiliary capacitance lines extending a first direction, signal lines extending a second direction, and a driving circuit configured to drive the gate lines, the signal lines, and the auxiliary capacitance lines, a counter substrate arranged opposite the array substrate, a liquid crystal layer held between the substrates, and a controller configured to control the driving circuit in such a manner that a polarity of a signal supplied to each of the signal lines varies in units of horizontal periods during a frame period when the polarity control signal for the first scan is identical to the polarity control signal for the second scan.

Abstract: The OCB mode liquid crystal display device applies a black display voltage V(Tr) with temperature characteristic requirements expressed by: V(T)=<Vs(T), and V(Tr??T)=V(T)=<Vs(Tr), where T represents a panel temperature of the liquid crystal panel, Tr represents a sensed temperature, ?T represents a temperature difference between the panel temperature and the sensed temperature, and Vs(T) represents an optimal black display voltage.

Abstract: In one embodiment, a liquid crystal display device includes a first substrate having a first pixel electrode and a first pillar-shaped spacer arranged in an active area, and a second pixel electrode and a second pillar-shaped spacer arranged in a shield area surrounding the active area. A shield layer is formed in the shape of a belt crossing above the first pillar-shaped spacer in the active area and extending to the shield area including a portion above the second pillar-shaped spacer. The height of a first seat layer formed above the first pillar-shaped spacer and including the shield layer, a first color filter layer and an overcoat layer is substantially the same as that of a second seat layer formed above the second pillar-shaped spacer and including the shield layer, a second color filter layer and the overcoat layer.

Abstract: In one embodiment, a display device includes a display panel having pixels. A first image signal for displaying two-dimensional pictures, a second image signal for displaying three-dimensional pictures, and a third image signal for displaying a black picture are written into the pixels. A control circuit writes the third image signal to the pixel of the display panel during at least one frame period when switching a first mode for displaying the two-dimensional pictures and a second mode for displaying the three-dimensional pictures.

Abstract: Optical compensation elements include first phase plates and second phase plates, which have retardation in a front-plane direction. When a value ?n/?n? is set by normalizing a retardation amount ?n·d relating to light of each of wavelengths by a retardation amount ?n?·d relating to light of a predetermined wavelength ?, a normalized value ?n/?n? in the first phase plate is greater than a normalized value ?n/?n? in a liquid crystal layer, and a normalized value ?n/?n? in the second phase plate is less than the normalized value ?n/?n? in the liquid crystal layer, with respect to light of wavelengths other than the predetermined wavelength.

Abstract: In an embodiment of the invention for an OCB (Optically Compensated Bend)-mode liquid-crystal display (LCD) device, retardation and/or a predetermined voltage range, from which a voltage applied to pixels in a viewing area is selected, is set for the each pixel or for the pixels in each region of the viewing area such that: the luminance on each pixel monotonously increases or decreases with increase of voltage in the predetermined voltage range; the luminance in central portion of the viewing area becomes minimum at black displaying.

Abstract: In an OCB liquid crystal display device, a gradation voltage of a video signal is set to be lower than a black display optimum voltage, and a reverse transition prevention voltage is set to be higher than the black display optimum voltage and to be lower than a maximum applied voltage, and as the gradation voltage of the video signal becomes low, the reverse transition prevention voltage is set to be high.

Abstract: 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.

Abstract: It is possible to eliminate the blue tone in the black color display in the OCB liquid crystal display device. A liquid crystal display cell (110) includes an opposing substrate (130) having an opposing electrode (Ecom), an array substrate (120) having pixel electrodes of the respective colors (dpixR, dpixG, dpixB), a liquid crystal layer (140) arranged in a bend-arrangement and sandwiched between the opposing substrate (130) and the array substrate (120), and red, green, and blue filter layers (CF(R), CF(G), CF(B)) arranged on one of the substrates. The maximum voltage is applied when performing black color display on the display screen. At least the maximum voltage of the pixel electrode for blue color dpixB applied to the opposing electrode (Ecom) is made different from the maximum voltage of the pixel electrodes of the other colors applied to the opposing electrode (Ecom).

Abstract: To reduce the blue tone in the black display of the OCB liquid crystal display device. A liquid crystal display cell (11) includes: an opposing substrate (130) having an opposing electrode (Ecom); an array substrate (120) having a pixel electrode Dpix for each color; a liquid crystal layer (140) arranged in a bend arrangement located between the opposing substrate (120) and the array substrate (120); and red, green, and blue filter layers arranged on one of the substrates. The opposing electrode has a film thickness tB of the portion Ecom (B) corresponding to the blue filter layer, which thickness is set so as to have the minimum value in the range 380 nm to 480 nm in the spectrum of the front reflectance and satisfy the following: 100 nm<tB?140 nm.

Abstract: A liquid crystal display cell (110) includes: an opposing substrate (130) having an opposing electrode (Ecom); an array substrate (120) having a pixel electrode Dpix for each color; a liquid crystal layer (140) arranged in a bend arrangement located between the opposing substrate (120) and the array substrate (120); and red, green, and blue filter layers (CF(R), CF(G), CF(B)) arranged on one of the substrates. Distances (dB, dG, dR) between the pixel electrodes of the respective colors (dpixR, dpixG, dpixB) and the opposing electrode (Ecom) are set as follows: dB<dR, dB.

Abstract: A liquid crystal display device includes a display panel having liquid crystal pixels, and a backlight which illuminates the display panel. In particular, this liquid crystal display device further includes a light source driving unit which turns on and off the backlight at a predetermined duty ratio every frame period for update of a video signal, and a panel driving unit which allows each of the liquid crystal pixels to hold a variable pixel voltage that depends on the video signal for a gradation display period longer than a turn-on period of the backlight and which allows each of the liquid crystal pixels to hold a fixed pixel voltage that does not depend on this video signal for a non-gradation display period shorter than a turn-off period of the backlight.

Abstract: A liquid crystal display device includes liquid crystal pixels which perform display of different color components, a driver which drives the liquid crystal pixels according to a video signal which expresses gradations of the color components, and a video signal processor which corrects the video signal to keep a color gamut substantially constant in a range from a maximum gradation to a specified intermediate gradation.

Abstract: A liquid crystal display apparatus includes crystal pixels, and a drive controller which makes the liquid crystal pixels hold a pixel voltage corresponding to a video signal for a first period and a non-video signal for a second period, and cyclically repeats the first and second periods, wherein the drive controller has a setting unit to set a value corresponding to the length of the second period, and a range changing unit to change a voltage range of a pixel voltage corresponding to the video signal corresponding to the value set, and the range changing unit changes a pixel voltage of a high luminance side and enlarges a pixel voltage range as a ratio of the second period to the first period is increased corresponding to the value, and changes a pixel voltage of a high luminance side and narrows a pixel voltage range as the ratio is decreased.

Abstract: The OCB mode liquid crystal display device applies a black display voltage V(Tr) with temperature characteristic requirements expressed by: V(T)=<Vs(T), and V(Tr??T)=V(T)=<Vs(Tr), where T represents a panel temperature of the liquid crystal panel, Tr represents a sensed temperature, ?T represents a temperature difference between the panel temperature and the sensed temperature, and Vs(T) represents an optimal black display voltage.

Abstract: A liquid crystal display device includes a plurality of liquid crystal pixels PX equipped with an OCB liquid crystal layer between a pair of substrates, color filters CF including red, green, and blue color layers allocated so as to overlap on the plurality of liquid crystal pixels, and a polarizing plate PL arranged at least at a viewing side in opposite to the liquid crystal pixels, wherein the blue color layer has a contrast that is greater than that of the green color layer.

Abstract: It is possible to eliminate the blue tone in the black color display in the OCB liquid crystal display device. A liquid crystal display cell (110) includes an opposing substrate (130) having an opposing electrode (Ecom), an array substrate (120) having pixel electrodes of the respective colors (dpixR, dpixG, dpixB), a liquid crystal layer (140) arranged in a bend-arrangement and sandwiched between the opposing substrate (130) and the array substrate (120), and red, green, and blue filter layers (CF(R), CF(G), CF(B)) arranged on one of the substrates. The maximum voltage is applied when performing black color display on the display screen. At least the maximum voltage of the pixel electrode for blue color dpixB applied to the opposing electrode (Ecom) is made different from the maximum voltage of the pixel electrodes of the other colors applied to the opposing electrode (Ecom).

Abstract: In an embodiment of the invention for an OCB (Optically Compensated Bend)-mode liquid-crystal display (LCD) device, retardation and/or a predetermined voltage range, from which a voltage applied to pixels in a viewing area is selected, is set for the each pixel or for the pixels in each region of the viewing area such that: the luminance on each pixel monotonously increases or decreases with increase of voltage in the predetermined voltage range; the luminance in central portion of the viewing area becomes minimum at black displaying.