Abstract: A liquid crystal panel (2) is a vertical alignment type liquid crystal panel using a horizontal electric field driving system which performs display by driving a liquid crystal layer (50) interposed between substrates (10, 20) in a horizontal electric field, each pixel includes three sub-pixels (6R, 6G, and 6B), which are of red, green, and blue, comb-shaped electrodes (14, 15) include a function as a diffraction grating with the comb-shaped electrodes (14, 15) and spaces between the comb-shaped electrodes (14, 15), and pitch distances (D) between electrodes are set such that an optical diffraction efficiency for red wavelength and an optical diffraction efficiency for green wavelength are greater than an optical diffraction efficiency for blue wavelength. Thus, it is possible to provide a liquid crystal panel and a liquid crystal display apparatus having a wide viewing angle with less color change with a simple configuration.

Abstract: A backlight system (30) includes a light emitting section (31) and an imaging optical system. The imaging optical system includes a first microlens array (MLA1) and a second microlens array (MLA2). The lenses (1A) separates the beams of light emitted from the light emitting section (31) by RGB, and causes them to be converged at a pitch same as a pitch at which the picture elements are arrayed. The lenses (2A) are provided in one-to-one correspondence to the picture elements such that the lenses (2A) have their respective focal points at positions onto which beams of light having passed through the lenses (1A) are converged. The lenses (2A) thus deflect the beams of light which have passed through the lenses (1A) in a substantially vertical direction with respect to the display surface of the liquid crystal panel.

Abstract: Picture element electrodes (30) and common electrodes (36) are provided in one of two substrates facing each other. Each picture element (20) has a plurality of sub picture elements (22). In a range in which a signal voltage of an image signal is low, a display is carried out only in a first sub picture element (22a) having narrower electrode spacing, whereas in a range in which the signal voltage of the image signal is high, a display is carried out in both of the first sub picture element (22a) and a second sub picture element (22b) having wider electrode spacing.

Abstract: An vertical alignment type liquid crystal display element (10) which controls an orientation of liquid crystal molecules (52) in a liquid crystal layer (50) by use of a transverse electric field so as to carry out display. A CF-side first insulating layer (42a) and a CF-side second insulting layer (42b) which have respective different dielectric constants are provided, within a pixel in a planar view, on or above a CF substrate (24) so that a first electric field region (60) and a second electric field region (62) which differ in shapes of equipotential lines are formed in the pixel due to generation of a transverse electric field.

Abstract: A vertical alignment liquid crystal panel based on a transverse electric field drive system is provided which shows few changes in color when looked squarely at. A liquid crystal panel (2) is a vertical alignment liquid crystal panel based on a transverse electric field drive system, which carries out a display by driving, with a transverse electric field, a liquid crystal layer (50) sandwiched between substrates (10, 20), and the substrate (10) is provided with an insulating layer (25) having at least two regions that are different in relative permittivity from each other in a pixel (6) composed of a red subpixel (6R), a green subpixel (6G), and a blue subpixel (6B). Those regions of the insulating layer (25) which correspond to the blue, green, and red subpixel (6B, 6G, 6R) in the liquid crystal panel (2) have relative permittivities of 3, 3 to 7, and 4 to 7, respectively.

Abstract: The present invention provides a liquid crystal display device that can suppress a display defect due to collapse of liquid crystal alignment. The present invention provides a liquid crystal display device comprising a liquid crystal display element including a pair of substrates and a liquid crystal layer hermetically interposed between the pair of substrates, wherein the liquid crystal layer includes a p-type liquid crystal material that is homeotropically aligned with respect to surfaces of the pair of substrates when no voltage is applied; one of the pair of substrates comprises a comb-shaped electrode and a first alignment layer configured to control alignment of the p-type liquid crystal material; the other of the pair of substrates comprises a second alignment layer configured to control alignment of the p-type liquid crystal material; and the first alignment layer has an anchoring energy of not greater than 1.5×10?4 J/m2.

Abstract: A backlight system includes: a light-emitting section (1) having a plurality of light sources that emit beams of light at different dominant wavelengths from one another; and an imaging optical system (3) including a plurality of microlenses (3a) that focus beams of light emitted from the light-emitting section (1), the backlight system irradiating a liquid crystal panel with beams of light having passed through the imaging optical system (3), the liquid crystal panel including a plurality of pixels arrayed at a predetermined pitch from each other, on the assumption that the pitch at which the pixels are arrayed is denoted as P and the imaging optical system (3) has an imaging magnification of (1/n), the light sources (1) being arrayed at a pitch (P1) given as P1=n×P, the microlenses (3a) being arrayed at a pitch (P2) given as P2=(n/(n+1))×P.

Abstract: The present invention provides a liquid crystal display device capable of preventing occurrence of flickers.

Abstract: A thin backlight system includes: a light emitting section emitting lights that have different dominant wavelengths; and a plurality of light transmitting portions, the thin backlight system deflecting the lights and then converging the lights on the plurality of light transmitting portions. The thin backlight system further includes: an imaging optical system provided to face surfaces, of the plurality of light transmitting portions, on which the lights are converged. The imaging optical system including a plurality of identical lenses arranged in a vertical and/or a horizontal direction at a pitch determined by multiplying a pitch at which the plurality of light transmitting portions are arranged in a vertical and/or a horizontal direction by the number of types of the different dominant wavelengths and being configured to converge the lights from the light emitting section on light transmitting portions to which the different dominant wavelengths of the lights correspond.

Abstract: A liquid crystal display element, a liquid crystal display device, and a method for displaying with a liquid crystal display element, wherein picture element electrodes (30) and a common electrode (36) are provided, each of a plurality of sub-picture elements (22) is provided with the common electrode (36) and a corresponding one of the picture element electrodes (30) in such a manner that the sub-picture elements (22) have different distances (a first distance d1 and a second distance d2) between the common electrode (36) and their corresponding ones of the picture element electrodes (30), display in a low gray scale region is carried out by means of a first sub-picture element (22a) that is a sub-picture element (22) in which the distance is short, display in a middle gray scale region is carried out by means of a second sub-picture element (22b) that is a sub-picture element (22) in which the distance is long, and display in a high gray scale region is carried out by means of the first sub-picture element

Abstract: A liquid crystal panel (2) is a vertical alignment type liquid crystal panel using a horizontal electric field driving system which performs display by driving a liquid crystal layer (50) interposed between substrates (10, 20) in a horizontal electric field, each pixel includes three sub-pixels (6R, 6G, and 6B), which are of red, green, and blue, comb-shaped electrodes (14, 15) include a function as a diffraction grating with the comb-shaped electrodes (14, 15) and spaces between the comb-shaped electrodes (14, 15), and pitch distances (D) between electrodes are set such that an optical diffraction efficiency for red wavelength and an optical diffraction efficiency for green wavelength are greater than an optical diffraction efficiency for blue wavelength. Thus, it is possible to provide a liquid crystal panel and a liquid crystal display apparatus having a wide viewing angle with less color change with a simple configuration.

Abstract: A backlight system (30) includes a light emitting section (31) and an imaging optical system. The imaging optical system includes a first microlens array (MLA1) and a second microlens array (MLA2). The lenses (1A) separates the beams of light emitted from the light emitting section (31) by RGB, and causes them to be converged at a pitch same as a pitch at which the picture elements are arrayed. The lenses (2A) are provided in one-to-one correspondence to the picture elements such that the lenses (2A) have their respective focal points at positions onto which beams of light having passed through the lenses (1A) are converged. The lenses (2A) thus deflect the beams of light which have passed through the lenses (1A) in a substantially vertical direction with respect to the display surface of the liquid crystal panel.

Abstract: The present invention provides a liquid crystal display device capable of preventing occurrence of flickers.

Abstract: The present invention provides a liquid crystal display panel and a liquid crystal display device which have a high response speed.

Abstract: A liquid crystal panel (2) includes a pair of substrates (10, 20) and a liquid crystal layer (30) sandwiched between the substrates (10, 20). At least one of the substrate (10, 20) is provided with combtooth electrodes (12, 13). The liquid crystal layer (30) is driven by a transverse electric field generated between the combtooth electrodes (12, 13). The liquid crystal layer (30) contains liquid crystal molecules (31) that align themselves perpendicularly to surfaces of the substrates when no electric field is applied. The liquid crystal panel 2 satisfies 0.33?S/(S+L)?0.64, where L is the width of each of the combtooth electrodes (12, 13) and S is the electrode interval.

Abstract: A liquid crystal display element of the present invention is a vertical alignment type liquid crystal display element (10) comprising an array substrate (22), a counter substrate (24), and a liquid crystal layer (50), which carries out a display by controlling orientations of liquid crystal molecules (52) in the liquid crystal layer (50) by use of transverse electric fields (60). In the liquid crystal display element (10), projections (70) are provided in positions corresponding to boundaries (V1, V2, V3) of orientational regions in the liquid crystal layer (50), on a liquid crystal layer (50) side surface of the counter substrate (24). Each of the protrusions (70) has a taper shape.

Abstract: This invention provides a liquid crystal display device in which response characteristics of liquid crystal molecules are improved. The liquid crystal display device includes a pair of substrates that are disposed facing each other, and a liquid crystal layer that is sandwiched between the pair of substrates. The liquid crystal layer contains liquid crystal molecules having positive dielectric anisotropy. The liquid crystal molecules align in a vertical direction relative to surfaces of the pair of substrates in a state in which a voltage is not applied thereto. The pair of substrates includes two or more sets of comb-shaped electrode pairs in which comb tooth portions of each comb-shaped electrode are alternately disposed with each other with a certain space therebetween. One substrate of the pair of substrates comprises a first polarizer. The other substrate of the pair of substrates comprises a second polarizer.

Abstract: A vertical alignment liquid crystal panel based on a transverse electric field drive system is provided which shows few changes in color when looked squarely at. A liquid crystal panel (2) is a vertical alignment liquid crystal panel based on a transverse electric field drive system, which carries out a display by driving, with a transverse electric field, a liquid crystal layer (50) sandwiched between substrates (10, 20), and the substrate (10) is provided with an insulating layer (25) having at least two regions that are different in relative permittivity from each other in a pixel (6) composed of a red subpixel (6R), a green subpixel (6G), and a blue subpixel (6B). Those regions of the insulating layer (25) which correspond to the blue, green, and red subpixel (6B, 6G, 6R) in the liquid crystal panel (2) have relative permittivities of 3, 3 to 7, and 4 to 7, respectively.

Abstract: The present invention provides a liquid crystal display device having an improved aperture ratio.

Abstract: Picture element electrodes (30) and common electrodes (36) are provided in one of two substrates facing each other. Each picture element (20) has a plurality of sub picture elements (22). In a range in which a signal voltage of an image signal is low, a display is carried out only in a first sub picture element (22a) having narrower electrode spacing, whereas in a range in which the signal voltage of the image signal is high, a display is carried out in both of the first sub picture element (22a) and a second sub picture element (22b) having wider electrode spacing.