103results about How to "High contrast ratio" patented technology

An integrated Silicon-OLED display and touch sensor panel is disclosed. The integrated Silicon-OLED display and touch sensor panel can include a Silicon substrate, an array of transistors, one or more metallization layers, one or more vias, an OLED stack, color filters, touch sensors, and additional components and circuitry. Additional components and circuitry can include an electrostatic discharge device, a light shielding, a switching matrix, one or more photodiodes, a near-infrared detector and near-infrared color filters. The integrated Silicon-OLED display and touch sensor panel can be further configured for near-field imaging, optically-assisted touch, and fingerprint detection. In some examples, a plurality of touch sensors and/or display pixels can be grouped into clusters, and the clusters can be coupled to a switching matrix for dynamic change of touch and/or display granularity.

An optical film in which a polarizing plate and a retardation film are laminated so that an absorbing axis of the polarizing plate and a slow axis of the retardation film may be perpendicular or may be parallel to each other, wherein a value Nz represented by Nz=(nx1-nz1)/(nx1-ny1) satisfies a range of 0.4 through 0.6, and an in-plane retardation Re1=(nx1-ny1)xd1 is 200 through 350 nm, where, a direction of the retardation film in which an in-plane refractive index within the film surface concerned gives a maximum is defined as X-axis, a direction perpendicular to X axis is defined as Y-axis, a thickness direction of the film is defined as Z-axis, refractive indexes in axial direction are defined as nx1, ny1, nz1, respectively, and a thickness of the film is defined as d1 (nm), may realize an easily viewable display with high contrast ratio in a wide range when applied to a display system, preferably used for a liquid crystal display operating in IPS mode.

A wire grid polarizer may be formed by embossing a substrate surface with a mold having a plurality of grooves to form raised ridges; and depositing a metal line profile onto the ridges through one or more baffles oriented at an oblique angle to the normal of the substrate. The metal line profile is characterized by a cross-sectional width that tapers such that the metal line profile is wider proximate a vertex of the ridges than proximate a base of the ridges. A wire grid polarizer may comprise a substrate with a plurality of raised ridges and a plurality of metal lines on the raised ridges. The metal lines are characterized by cross-sectional metal line profiles having triangular shapes with a tip down configuration. Such a wire grid polarizer may be used in a liquid crystal display.

An optical modulator that performs wide bandwidth optical modulation by using multiple Fabry-Perot resonant modes, and an apparatus for capturing a three-dimensional image including the optical modulator are provided. The optical modulator may include: a substrate; a first contact layer disposed on the substrate; a bottom distributed Bragg reflective (DBR) layer disposed on the first contact layer; an active layer disposed on the bottom DBR layer and includes a multiple quantum well layer; a top DBR layer disposed on the active layer; a cavity layer disposed in the top DBR layer; and a second contact layer disposed on the top DBR layer. Since the optical modulator achieves both a high contrast ratio and a wide bandwidth by using two or more Fabry-Perot resonant modes, the optical modulator may show a stable performance even when a resonant wavelength is changed during manufacture or due to an external environment such as temperature.

A liquid crystal display of a vertical alignment (VA) mode using a circular polarization plate is provided which can reduce light leak as observed along an oblique direction and achieve a high contrast ratio. The VA mode uses a liquid crystal layer of vertical alignment in an initial alignment state. A film having generally isotropic optical characteristics in an omnidirection is used as a protective film, on a liquid crystal cell side, of first and second polarization plates disposed outside the liquid crystal cell, and first and fourth retardation films have an N_z coefficient smaller than 1.

A transflective liquid crystal display includes gate and data lines perpendicular to each other and defining a plurality of unit pixels. Each unit pixel includes a plurality of sub-pixel regions, which each have a transmissive portions and a reflective portion. The transmissive portions are gathered together within each unit pixel at corners of the sub-pixel regions opposing corners in which thin film transistors near the crossings of the gate and data lines are disposed. A passivation layer covering the thin film transistors and the gate and data lines has an opening that corresponds to the transmissive portions in the unit pixel. A reflector is formed over the passivation layer in each sub-pixel region and corresponds in position to the reflective portion. A pixel electrode in each sub-pixel region contacts the thin film transistor through a contact hole in the passivation layer.

The present invention discloses a graphene-modified building coating material, which comprises a solvent, a commonly used additive and a main film forming substance, and further comprises graphene for modification, wherein the amount of the added graphene is 0.001-20% of the weight of the building coating material, the building coating material can further be added with the auxiliary additive, and the amount of the added auxiliary additive is 0-8% of the weight of the building coating material. According to the present invention, graphene is added to the existing building coating material so as to modify the water resistance mechanical strength of the building coating material and increase adhesion of the building coating material and the substrate, the contrast ratio and the scrubbing resistance; the bamboo carbon fibers are added to the building coating material so as to provide effects of bacterial inhibition, antibacterial and anti-ultraviolet light, such that the building coating material has the characteristic of green environmental protection; and the bone glue is added to the building coating material so as to improve bonding property and increase adhesion.

The present invention relates to a method of driving plasma display panel. A method of driving a plasma display device driven by dividing a plurality of scan electrode lines into the m (m is a integer more than 2) number of groups, according to the present invention includes: applying p (p is a natural number more than 1) number of first reset pulse having a first voltage to the scan electrode lines included in more than one group among m number of groups during a specific frame; and simultaneously applying q (q is a natural number more than 1) number of second reset pulse having a second voltage different from the first voltage to the second electrode line included in the rest groups except for more than one group during the specific frame.

The present invention is directed to an organic light emitting device comprising a multilayer structure with a first electrode, a second electrode, at least one layer of organic material, arranged between said first electrode and said second electrode, and a dielectric capping layer, arranged on said second electrode opposite to said first electrode, wherein said capping layer comprises an outer surface, opposite to said second electrode, for emission of light generated in said at least one layer of organic material. The capping layer has the effect that a reflectance of external light is reduced whereas outcoupling of the light generated in the at least one layer of organic material through said capping layer is increased.

The invention relates to interior wall paint, in particular to an environment-friendly paint which can be widely applied to the decoration of indoor walls, ceilings, plasterboards and the like, does not contain APEO (alkylphenol polyethenoxy ether), is scentless and has low free formaldehyde. The paint is prepared by mainly adopting the technology as follows: first, a dispersant, a wetting agent, a foam suppressor, a thickening agent and a mildew-proof algaecide are added into water sequentially under low speed; titanium pigment, a pH regulator, coarse whiting, calcined kaolin or washed kaolin, french chalk and a mildew-proof agent are added sequentially under medium speed; high-speed dispersion or sanding are carried out until the fineness of less than 50 Mum; and finally, a polystyrene-acrylic copolymer, a polyacrylic copolymer or a vinyl acetate copolymer-acrylic copolymer, a film-forming accessory agent, an antifreezing agent, a preservative, the foam suppressor, a rheology agent and H2O are added sequentially under low speed. The paint dose not contain APEO, thus having no effect on the reproductive system of human and animal; the paint has low odor, and no odor basically, reduces the harm of the residual monomer to human body, and has extremely good physical performances, thus being capable of meeting the requirements on indoor decoration.

This invention relates to high performance of silicon emulsion and its production. It is prepared from octaalkyl cyclotetrasiloxane and octavinyl cyclotetrasiloxane mixed monomer, and acrylic acid monomer acted with catalyst, initiator, emusifier and pH regulator. Its process includes polymerizing seed emulsion, polymerizing nucleic emulsion, and polymerizing nucleic shell silicon emulsion. It has uniformly sized particles and is stable quality and production. Coatings with it are waterproof, weatherproof, washing resistant and stain-resistant.

The invention discloses a one coat paint prepared by an organic and inorganic compound emulsion and a preparation method thereof. The one coat paint is used for sealing and decorating an exterior wall. The one coat paint comprises the following components: pure water, a thickener, multifunctional additives, a dispersant, a wetting agent, a defoaming agent, a mildew-proof agent, rutile type titanium dioxide, a filler, a liquid filler, the compound emulsion, film-forming additives, a cosolvent and a fungicide. The one coat paint disclosed by the invention has the performances of a primer paint, namely excellent alkali burnout resistance and salting-out resistance; furthermore, all the performances are in line with the requirements of primer paint first-grade products for the exterior wall of buildings. The one coat paint further has the performances of a finish paint of the exterior wall: a paint film has excellent contrast ratio, scrub resistance, weatherability and stain resistance, and all the performances are in line with the requirements of high-grade products of latex paint for the exterior walls of the buildings.

First, a Cr film and a CrOx film are deposited and patterned using an etchant including 8-12% Ce(NH₄)₂(NO3)₆, 10-20% NH₃ and remaining ultra pure water to form a gate wire including a plurality of gate lines, a plurality of gate electrodes and a plurality of gate pads. Next, a gate insulating film, a semiconductor layer and an ohmic contact layer are formed in sequence. A Cr film and CrOx film are deposited in sequence and patterned using an etchant including 8-12% Ce(N11₄)₂(NO₃)₆, 10-20% NH₃ and remaining ultra pure water to form a data wire including a plurality of data lines, a plurality of source electrodes, a plurality of drain electrodes and a plurality of data pads. A passivation layer is deposited and pattered to form a plurality of contact holes respectively exposing the drain electrodes, the gate pads and the data pads. A transparent conductive material or a reflective conductive material is deposited and patterned to form a plurality of pixel electrodes, a plurality of subsidiary gate pads and a plurality of subsidiary data pads electrically connected to the drain electrodes, the gate pads and the data pads, respectively. The gate lines and the data lines with low reflectance are used as a light-blocking film for blocking the light leakage between the pixel areas, and do not increase the black brightness. Accordingly, a separate black matrix need not be provided on the color filter panel, thereby securing both aperture ration of the pixel and high contrast ratio.

Disclosed is an electrophoretic display (EPD) device capable of implementing colors with high brightness. Each sub-pixel implement colors with driving color particles, white particles and black particles, and the EPD device has an enhanced contrast ratio due to black particles.

The present invention provides a color electronic paper display device including: rotating balls; a barrier structure for partitioning the rotating balls; and an electrode structure which is provided in the barrier structure and applies voltages to the rotating balls, wherein the barrier structure is made of a photo-reactive barrier material including insulating resin, hardener, and a photo-sensitive material.

Disclosed are a photosensitive resin composition including a composite dye that includes a red fluorescent dye re-emitting light at a 400 to 800 nm fluorescent wavelength; and a metal complex dye including at least one metal ion selected from Mg, Ni, Co, Zn, Cr, Pt, and Pd, and a color filter using the same.

An optical film has a film a formed of a cyclic olefin resin, and a homeotropically orientated optical anisotropic layer b disposed on the film a. This optical film preferably satisfies the below listed formulae (1) to (3).

−600nm≦Rth≦200nm  (1)

0nm≦R≦600nm  (2)

NZ≦1  (3)

(In formulae (1) to (3), Rth indicates the retardation in the thickness direction of the optical film at a wavelength of 550 nm; R indicates the in-plane retardation of the optical film at a wavelength of 550 nm; and NZ indicates (nx−nz)/(nx−ny)).

When the optical film is used in an ISP mode liquid crystal display device, light leakage and color fading (discoloration) during black display are prevented stably for a long term, and a good viewing angle compensation effect is obtained (i.e., high contrast ratio at all angles).

The invention discloses an interior wall antibacterial and mildew-resistant functional coating which contains the following ingredients, by weight, 18-40 parts of antibacterial powder, 10-20 parts of a mildew preventive, 10-20 parts of a preservative, 1.2-3.6 parts of hydroxyethyl cellulose, 100-500 parts of deionized water, 0.2-0.8 part of a water treatment agent, 0.5-1.5 parts of a pH regulator, 2.8-5 parts of a wetting agent, 3.6-10 parts of a dispersant, 448-668 parts of a colouring agent, 1-2 parts of an antifoaming agent, 70-230 parts of a modifier, 6-9.4 parts of a filling material, 110-277 parts of an emulsion, 12.8-22 parts of a film forming agent, 12-60 parts of an antifreezing agent, 30-90 parts of a thickening agent, 60-200 parts of Huizhu and 1-10 parts of superfine cellulose. The interior wall antibacterial and mildew-resistant functional coating has excellent antibacterial effect and long antibacterial and mildew-resistant time and can be used to remarkably improve indoor environment and raise air quality. In addition, the coating is harmless to human body, has no peculiar smell, has good mechanical property and decoration property, and is a highly-efficient environmental-production functional interior wall coating.

An array substrate including a substrate, multiple pixels arranged in an array on the substrate, and an alignment film disposed on the pixels is provided. The pixel includes a reflective region, a transmissive region, and a transition region formed between the reflective region and the transmissive region, wherein an included angle between at least one side of the transition region and a rubbing direction of the alignment film is smaller than or equal to 30 degree. In addition, a transflective LCD including the array substrate as described above and a fabricating method of an array substrate is further provided.

The invention provides a rear projection apparatus comprising a first lens and a second lens. The second lens consists of a scattering layer, a diffusion layer, a reflective layer, and a light absorbing layer. The scattering layer has a curved-body structure to realize penetration and scattering of light to increase a visual angle. The reflective layer uses a groove structure filled with a light-absorption filling material to absorb ambient light and enhance the contrast ratio of the screen. Besides, because of astigmatic particles in the diffusion layer and light absorbing particles in the light absorbing layer, a problem of poor color rendition effect caused by non-uniform material mixing and high optical losses because of the interactive influence of the astigmatic particles and the light absorbing particles is solved.