Abstract: Surface light source device includes: point light sources (13); light guide plate (1) having (i) two end parts in length direction, one of which serves as incident surface (2), and (ii) two end parts in thickness direction which serve as exit surface (7) and back surface (8), light guide plate (1) directing light, emitted from point light sources (13), incident on incident surface (2), so as to cause light to exit from substantially entire area of exit surface (7); and reflector (14) which reflects, toward incident surface (2), part of light which is emitted from point light sources (13) and is then reflected from incident surface (2). Incident surface (2) has elliptic arc (10) which is concave part having surface shape along elliptic arc identical to elliptic arc which is part of ellipse (31) having two focal points corresponding to point light sources (13) and reflector (14).

Abstract: A liquid crystal panel (10) includes a liquid crystal layer formed with a p-type liquid crystal. The liquid crystal layer exhibits homogeneous orientation while no voltage is applied. Further, an electric field is applied to the liquid crystal layer in a direction same as dipole moments (?) of liquid crystal molecules (3a) to which no voltage is applied. With these arrangements, it is possible to provide a liquid crystal panel and a liquid crystal display device, each of which adopts a new display mode that can achieve a wide viewing angle equivalent to an IPS mode, can achieve a high-speed response like an OCB mode or exceeding the OCB mode, and does not require an initial operation for orientation conversion to the bend orientation.

Abstract: The present invention provides a liquid crystal display device providing uniform display without lowering the transmissivity.

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 element that can be driven at a low threshold voltage. A liquid crystal display element of the present invention includes: a pair of substrates; and a liquid crystal layer sealed between the pair of substrates, wherein the liquid crystal layer contains liquid crystal molecules that are aligned perpendicularly to at least one substrate face of the pair of substrates when a voltage is applied, the at least one of the pair of substrates comprises a pair of comb-shaped electrodes, the at least one of the pair of substrates comprises a polymer film on a face contacting the liquid crystal layer, and the polymer film is made of a polymer material having a CF2 bond.

Abstract: A liquid crystal panel (2) includes: a p-type liquid crystal material sandwiched between a pair of substrates (40, 20); and pixel electrodes (13), each formed from a comb electrode, and a common electrode (14) both provided to the substrate (40). A p-type liquid crystal material is aligned in a direction perpendicular to substrate surfaces while no electric field is applied. The comb electrodes each have an electrode width of not more than 5 ?m and an electrode spacing of not more than 15 ?m. The pixel electrode (13) and the common electrode (14) serve to apply to the p-type liquid crystal material an electric field parallel to the substrate surface. A voltage of not less than 7 V is applied between the pixel electrode (13) and the common electrode (14) when the liquid crystal panel is driven. The p-type liquid crystal material has, in a range from 0.9 to 2.5, a product of a dielectric anisotropy ?? and a refractive index anisotropy ?n.

Abstract: A liquid crystal panel (2) includes: a pair of substrates (10, 20) which face each other; a liquid crystal layer (30) sandwiched by the pair of substrates (10, 20); and an upper electrode (14) and a lower electrode (12) which are provided on one surface (10) of the pair of substrates (10, 20) and overlap each other via an insulating layer (13), the upper electrode (14) being constituted by comb electrodes (14A, 14B), an average electrical energy being not less than 0.44 J/m3 in a part of the liquid crystal layer which part is 0.1 ?m deep from a surface of the other one (20) of the pair of substrates (10, 20) and which part overlaps the comb electrodes (14A, 14B) when the liquid crystal layer (30) is viewed from a direction vertical to a substrate surface.

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: According to a conventional backlight device for use in a thin full-color display device in which pixels are subjected to a color separation by colored lights, a large chromatic aberration occurs, thereby causing a deterioration in image quality.

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: The present invention provides a liquid crystal display device that suppress moiré generated when a voltage is applied in a liquid crystal mode that drives a vertical alignment liquid crystal by using at least a pair of comb-shaped electrodes.

Abstract: The present invention provides a liquid crystal display device in which viewing angle characteristics are improved without impairing transmittance.

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 liquid crystal panel includes: a p-type liquid crystal material sandwiched by a pair of substrates and comb-teeth shape electrodes for applying, to the p-type liquid crystal material, an electric field parallel to a substrate surface. The p-type liquid crystal material is aligned vertically with respect to the substrate surface at the time when no electric field is applied. The comb-teeth shape electrodes have an electrode width of 5 ?m or less, and an electrode spacing of 15 ?m or less. A product of a dielectric constant anisotropy ?? and a refractive index anisotropy ?n of the p-type liquid crystal material is 1.3 or more and 3.1 or less.

Abstract: A dichroic filter column (4) is provided on an incident surface (11). At least one of two end parts of a light guide plate (1) in a thickness direction is divided into a plurality of light guide paths (6), in a width direction of the light guide plate (1) by a plurality of cutout grooves (5). Portions of the plurality of light guide paths (6) on an incident surface (11) side are aligned in accordance with positions of a plurality of dichroic filters (31), respectively. The plurality of dichroic filters (31) are elements of the dichroic filter column (4).

Abstract: Conventional planar light source devices have a problem that increasing a utilization ratio of light results in a very narrow angle distribution of light. A planar light source device of the present invention has a light source (1), a light guide plate (2) for introducing light coming from the light source via a light-incident plane of the light guide plate and emits the light from almost all area of a light emission plane, and a light source side reflector (3) for reflecting the light coming from the light source and light which comes from the light source and is reflected by the light-incident plane of the light guide plate so that the reflected light is emitted to the light-incident plane of the light guide plate.

Abstract: A dichroic filter column (4) is provided on an incident surface (11). At least one of two end parts of a light guide plate (1) in a thickness direction is divided into a plurality of light guide paths (6), in a width direction of the light guide plate (1) by a plurality of cutout grooves (5). Portions of the plurality of light guide paths (6) on an incident surface (11) side are aligned in accordance with positions of a plurality of dichroic filters (31), respectively. The plurality of dichroic filters (31) are elements of the dichroic filter column (4).

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: Surface light source device includes: point light sources (13); light guide plate (1) having (i) two end parts in length direction, one of which serves as incident surface (2), and (ii) two end parts in thickness direction which serve as exit surface (7) and back surface (8), light guide plate (1) directing light, emitted from point light sources (13), incident on incident surface (2), so as to cause light to exit from substantially entire area of exit surface (7); and reflector (14) which reflects, toward incident surface (2), part of light which is emitted from point light sources (13) and is then reflected from incident surface (2). Incident surface (2) has elliptic arc (10) which is concave part having surface shape along elliptic arc identical to elliptic arc which is part of ellipse (31) having two focal points corresponding to point light sources (13) and reflector (14).

Abstract: The present invention provides a liquid crystal display device which is capable of achieving excellent wide-viewing-angle characteristics and rapid responsiveness, and is capable of displaying by a display mode which does not require operation for initial bend transition. The present invention relates to one embodiment of a liquid crystal display device including: two substrates at least one of which is transparent; and a p-type nematic liquid crystal disposed between the two substrates, the p-type nematic liquid crystal being aligned perpendicular to the surfaces of the two substrates when no voltage is applied, at least one of the two substrates having a comb-shaped electrode, and the comb-shaped electrode satisfying the relationship (S+1.7)/(S+L)?0.7, wherein L represents an electrode width and S represents an electrode spacing.