304results about How to "Improve viewing angle characteristics" patented technology

A microlens substrate is provided having a plurality of first microlenses and a plurality of second microlenses which are located between the plurality of first microlenses. The second microlenses are smaller than the first microlenses.

A display device with improved viewing angle characteristics is provided. A display device with suppressed mixture of colors between adjacent pixels is provided. The display device includes a first coloring layer, a second coloring layer, and a structure body therebetween. The structure body has a portion closer to a display surface side than a bottom surface of the first coloring layer or a bottom surface of the second coloring layer.

A liquid crystal display device (100) according to the present invention includes pixels (P1) and (P2), each of which includes three subpixels (R1, G1, B1) and (R2, G2, B2). When the input signal indicates that a chromatic color should be represented, one of the subpixels (B1 and B2) is turned ON and at least one of the subpixels (R1, R2, G1 and G2) is turned ON, too. If the average luminance of the subpixels (B1 and B2) in a situation where the input signal indicates that the chromatic color should be represented is substantially equal to that of the subpixels (B1 and B2) in another situation where the input signal indicates that an achromatic color should be represented, the luminances of those subpixels (B1 and B2) in the former situation are different from those of the subpixels (B1 and B2) in the latter situation.

The present invention provides a laminated retardation plate that shows an excellent viewing angle property when used in a liquid crystal display, and that can be decreased in thickness. The laminated retardation plate is formed by laminating an optically anisotropic layer (A) made of a polymer having an in-plane retardation of 20-300 nm and a ratio between a thickness direction retardation and the in-plane retardation of not less than 1.0, and an optically anisotropic layer (B) made of a non-liquid crystalline polymer such as polyimide having an in-plane retardation of not less than 3 nm and a ratio between a thickness direction retardation and the in-plane retardation of not less than 1.0. The thus obtained laminated retardation plate shows excellent optical properties, e.g., an in-plane retardation (Re) of 10 nm or more, and a difference between a thickness direction retardation and the in-plane retardation of 50 nm or more.

Disclosed is a polymer film excellent in performance of inducing Rth. The polymer film comprises at least one species of a compound represented by the formula (I) and a compound represented by the formula (I′):

An electric field that is parallel with a TFT substrate is formed by a pair of electrodes formed on the TFT substrate. Liquid crystal molecules in a light modulating layer are caused to respond electro-optically to the electric field. The light modulating layer is constituted of a liquid crystal material, an optically active substance, and a dichroic dye. The spiral pitch p [μm] of the light modulating layer, the cell thickness d [μm], the twist angle n of liquid crystal molecules, and the interelectrode interval L [μm] are set in ranges of 1≦p≦15, 1≦d≦10, n≦300°, and L<25.

A surface mode liquid crystal device, comprising a liquid crystal layer disposed between first and second alignment layers for substantially parallel-aligning the liquid crystal layer, the first alignment layer comprising a plurality of regions defining respective picture elements, each of the regions comprising a plurality of sub-regions, the plurality of sub-regions each comprising at least one first sub-region for aligning the adjacent liquid crystal In a first alignment direction and at least one second sub-region for aligning the adjacent liquid crystal in a second alignment direction substantially different from that of the first alignment direction.

The present invention realizes an IPS liquid crystal display device which exhibits small directivity of viewing angle and high brightness. Below a pixel electrode having a comb-teeth-shaped electrode and having a laterally-extending trapezoidal profile, a planar common electrode not shown in the drawing is formed by way of an insulation film. When a video signal is applied to the pixel electrode, an electric field is generated between the pixel electrode and the common electrode via slit portions formed in the pixel electrode thus controlling liquid crystal molecules. The pixel electrodes are arranged in a packed state by alternately reversing the direction of the trapezoidal shape in the longitudinal direction. Since a light blocking film is not present between two pixel electrodes arranged adjacent to each other in the longitudinal direction, the liquid crystal display device can acquire high transmissivity. As a result, a liquid crystal display device having high brightness can be realized.

In the present display device, a control section (15) divides each frame into a preceding subframe and a succeeding subframe and designates the preceding subframe for black display for low luminance and the succeeding subframe for white display for high luminance. That mitigates excess brightness phenomena. The control section (15) adjusts emission of a light source in the display section (14) by PWM light adjustment, setting the light adjustment frequency to n.5 times the frame frequency and not lower than 450 Hz. That prevents horizontal stripes from occurring. The light adjustment frequency is so raised that flickering is less recognizable.

An active matrix type liquid crystal display system having a liquid crystal composition being interposed between a first and a second substrates, a plurality of pixel parts being constructed with a plurality of scanning electrodes and a plurality of signal electrodes arranged in a matrix, a switching element being provided in each of the pixel parts, wherein the switching element is connected to a pixel electrode, the pixel electrode and a common electrode being so constructed as operable in keeping the major axes of the liquid crystal molecules parallel to the surface of the substrate. In the pixel part, the signal electrode and the pixel electrode is formed and a shield electrode is formed between the signal electrode and the pixel electrode. The system requires no transparent electrode, being excellent in visual angle characteristic, being high in contrast, being small in cross-talk producing probability.

Adhesive layers are formed on the two opposing surfaces of a transparent support. At least one of the adhesive layers is made of a material of which the cured state may be changed. The adhesive layer is irradiated with light and a lens sheet is then pressed against the adhesive layer. The adhesive layer is cured. In this illustrative way, a laminate film of the lens sheet fixed to the transparent support via the adhesive layer may be obtained. The laminate film may be bonded to a polarizing plate on the viewer's side of a liquid crystal display element via the other adhesive layer.

A liquid crystal display apparatus including pair of substrates; a liquid crystal arranged between the pair of substrates; a plurality of stripe electrodes per pixel and an alignment layer formed in one of the substrates; a transparent electrode covering substantially the whole surface of the other substrate and an alignment layer formed in the other substrate; and an insulating layer arranged in one substrate to cover the stripe electrodes. The insulating layer preferably has openings above the stripe electrodes and the openings preferably have tapered side walls.

There is provided a direct-viewing type liquid crystal display panel with a microlens array having high viewing angle characteristics and high contrast, which is capable of displaying with a high luminance.

A liquid crystal display panel with a microlens array according to the present invention includes a liquid crystal panel having a plurality of pixels; a microlens array provided on a light-incident side of the liquid crystal panel; a first polarizing plate and a first optical compensation element provided on a light-outgoing side of the liquid crystal panel; and a second polarizing plate and a second optical compensation element provided on a light-incident side of the microlens array. The retardation of the first optical compensation element along the thickness direction is greater than the retardation of the second optical compensation element along the thickness direction.

In the middle of each picture element electrode on a TFT substrate, a slit parallel to gate bus lines is formed. On a counter substrate, protrusions are formed. Each protrusion includes a protrusion placed along the left edge of the upper half of a picture element electrode, a protrusion horizontally extending from the middle of the preceding protrusion, a protrusion placed along the right edge of the lower half of the picture element electrode, and a protrusion horizontally extending from the middle of the preceding protrusion. Liquid crystal molecules are aligned with directions of approximately 45° relative to the protrusions and the edges of the picture element electrodes.

There are provided an optical element, which can be produced at low cost and has birefringent characteristics with low susceptibility to heat, and a process for producing the same. The optical element comprises: a light transparent substrate; and a first birefringence layer provided on the substrate, wherein the first birefringence layer comprises a crosslinked polymer comprising a coupling agent and/or a surfactant which can homeotropically align a polymerizable liquid crystal comprising rodlike molecules; and the crosslinked polymer has a three-dimensionally crosslinked structure in such a state that the polymerizable liquid crystal comprising rodlike molecules holds homeotropic alignment.