33results about How to "Excellent brightness characteristics" patented technology

An LED lamp (30) comprising a circuit board (22) on which electrode patterns are formed, a reflective frame (31) provided on the circuit board (22) and having a concave portion (32), a light emitter (27) mounted in the concave portion (32), a translucent sealing plate (3) disposed on an upper surface of the reflective frame (31) above the light emitter (27) and including a lens part (8), and a protecting member (11) disposed on a surface having an emission area of the translucent sealing plate (3) and protecting the lens part (8), the protecting member (11) including an opening (11a) having an axis extending in a direction of thickness of the protecting member, an inner edge of the opening (11) being set to lie at an outer peripheral portion of a lens effective diameter (8a) of the lens part (8) or outside the lens effective diameter (8a).

A projector screen having a simple configuration, which provides a wide field of view angle and can be used for both transmission and reflection projection is achieved. A screen according to the present invention is provided with a directional scattering layer that scatters incoming light within a specific angular range and transmits incoming light outside the specific angular range. Further, an image projection system can be made by combining the screen with an image projector that projects an image onto the screen.

A projector screen having a simple configuration, which provides a wide field of view angle and can be used for both transmission and reflection projection is achieved. A screen according to the present invention is provided with a directional scattering layer that scatters incoming light within a specific angular range and transmits incoming light outside the specific angular range. Further, an image projection system can be made by combining the screen with an image projector that projects an image onto the screen.

A surface light source device has a narrowed visual field and increased brightness. The surface light source device can be applied to a liquid crystal display. The back side of a fluorescent lamp is covered with silver foil. Light emitted from the lamp enters a wedge-shaped light guide plate through its incident surface. The light guide plate is designed so that directional light exits from the guide plate. When the light is guided toward a thin-walled end surface through the light guide plate, the light is scattered, reflected, and undergoes other action. Collimated light flux gradually exits from the exiting surface. The light flux passes through two prism sheets successively. As a result, the direction of propagation of the light is restricted in two dimensions. The light flux of increased brightness is directed to the liquid crystal panel. V-shaped channels formed in the prism faces of the two prism sheets PS1, PS2 are arrayed in two mutually perpendicular directions while facing outward. The prismatic vertical angles of the two sheets PS1, PS2 have various desirable combinations of values. For example, where the first sheet PS1 is disposed vertical to the lamp, the vertical angles of the two sheets PS1, PS2 are preferably 90° and 70°, respectively.

An optical film, a reflective polarizing plate and a display device are provided. For example, the optical film may be used in the reflective polarizing plate which may enhance the efficiency of light utilization of a display device such as a liquid crystal display device and improve the brightness.

The invention relates to a self emission type photosensitive resin composition, a color filter manufactured using thereof and an image display device having the same. Particularly, the invention relates to the self emission type photosensitive resin composition which comprises an alkali-soluble resin, photoluminescence quantum point particles, a photo-polymerizable compound, a photo-polymerization initiator and a solvent. The alkali-soluble resin comprises polymerizable unsaturated bonds in the structure, and the equivalent of acryloyl is 300-2000g / eq. According to the self emission type photosensitive resin composition, problems of light efficiency reduction and photosensing characteristic reduction in hard baking process are prevented; and the high-quality color filter with excellent brightness characteristic can be realized.

The invention provides a pixel circuit and a driving method thereof. A first capacitor is electrically connected between the positive pole of an organic LED and the grid electrode of a driving transistor. When all pixel circuits respond to the same data signal, the carrier mobilities of the driving transistors of all the pixel circuits are different, so that current flowing through the organic LEDs is not absolutely the same, and the uniformity of the lighting brightness of all pixel units is influenced; and voltage variation is fed back to the grid electrodes of the driving transistors through the first capacitors connected in parallel with the driving transistors, and all the transistors which are field-effect transistors with the same channel polarity can play a role of negative feedback adjustment of current flowing into the positive poles of the organic LEDs, so that current, flowing through the organic LEDs, in all pixels is compensated to be consistent, and accordingly, the problem that the display effect of an organic light-emitting display device applying the organic LEDs is influenced by nonuniformity of the organic LEDs due to difference between the carrier mobilities is effectively solved.

A plasma display panel including a discharge gas for generating ultraviolet light as a result of electric discharge, and a phosphor layer containing a phosphor for emitting light upon excitation by ultraviolet light is provided. The phosphor contains a novel Eu-activated silicate phosphor represented by (CaxM11-x)3-e.M2.Si2O8: Eue. In the formula, M1 is at least one element selected from the group consisting of Sr and Ba; M2 is at least one element selected from the group consisting of Mg and Zn; x is the mole fraction of the component Ca satisfying the condition of 0<x≦0.2, and e is the mole fraction of Eu satisfying the condition of 0.001≦e≦0.2.

A modified kraft pulp fiber with unique properties is provided. The modified fiber can be a modified bleached kraft fiber that is almost indistinguishable from its conventional counterpart, except that it has a low degree of polymerization (DP). Methods for making the modified fiber and products made from it are also provided. The method can be a one step acidic, iron catalyzed peroxide treatment process that can be incorporated into a single stage of a multi-stage bleaching process. The products can be chemical cellulose feedstocks, microcrystalline cellulose feedstocks, fluff pulps and products made from them.

This charge-transporting varnish includes: a fluorine-containing charge-transporting substance; a non-fluorine-containing charge-transporting substance; a dopant substance comprising a heteropoly acid; and an organic solvent. The fluorine-containing charge-transporting substance is a polymer which has a weight average molecular weight of 500-200,000, and which is obtained by condensing: at least one compound selected from triarylamine compounds and tetraarylbenzidine compounds; a tetraarylbenzidine compound having at least one aryl group substituted with an alkoxy group which may include ether bonds; a fluorine-containing aryl aldehyde compound; and a fluorene derivative having a carbonyl group. The non-fluorine-containing charge-transporting substance is an oligoaniline compound. The charge-transporting varnish provides a thin film with which an organic electroluminescent element exhibiting excellent luminance characteristics can be achieved, even in cases when employed as a single layer in a state of being provided between and in contact with a positive electrode and a light-emission layer.

Embodiments of the present invention provide a substrate of a liquid crystal display (LCD) panel, a liquid crystal panel, and a manufacturing method thereof. The substrate of a LCD panel comprises a first substrate, a color filter layer comprising color resins and a black matrix and formed on one surface of the first substrate, a transparent layer formed on the color filter layer and having a planar surface, and an array structure layer formed on the planar surface of the transparent layer or on the other surface of the first substrate.

Provided are a photosensitive resin composition for a color filter and a color filter using the same. The photosensitive resin composition for a color filter includes (A) a colorant including a diaminopyridine azo-based dye including a structure represented by Chemical Formula 1, and showing an absorption wavelength at 450 to 550nm, (B) an acryl-based binder resin, (C) an acryl-based photopolymerizable monomer, (D) a photopolymerization initiator, and (E) a solvent.

The invention provides a planar illumination device and a method of manufacturing the planar illumination device, which meets the requirement for thinness and obtains excellent brightness features. Aplanar illumination device according to an embodiment includes a light guide plate, a light source, a substrate, and a fixing member. The light guide plate causes light incident on a side surface to exit from a light exit surface. The light source is arranged on a side of the side surface of the light guide plate and has a light emitting surface to emit light toward the side surface. The light source is mounted on the substrate by bonding a bonding surface of the light source thereto by a solder. The fixing member is cured at temperature lower than a melting point of the solder and fixes the light source to the substrate while maintaining a position and a posture of the light source.

An optical adjusting member according to the invention includes a base member having optical transparency and a plurality of linear members provided on the base member and having optical transparency. A section of the linear member orthogonal to the lengthwise direction of the linear member includes a triangular first sectional part defined by first to third sides and an approximately triangular second sectional part. The second sectional part has a smaller area than that of the first sectional part and defined by fourth to sixth sides. The first side of the first sectional part is in contact with the surface of the base member. The second sectional part is formed on the second side of the first sectional part, and the fourth side of the second sectional part is in contact with the second side of the first sectional part.

A method and apparatus for controlling the brightness of an image processing device to improve a brightness characteristic of an image signal, by reducing a pedestal voltage range and correspondingly expanding a brightness control voltage range in a highlight mode. The brightness control method includes the operations of determining whether a highlight mode is enabled; and if the highlight mode is enabled, reducing a pedestal voltage range by a first predetermined value and expanding a brightness control voltage range by a second predetermined value. The pedestal driving voltage and the brightness control voltage can be reciprocally controlled without modifications to a circuit having limited amplification, and the brightness can be improved without saturating an image in a highlight mode.

An optical film, a reflective polarizing plate and a display device are provided. For example, the optical film may be used in the reflective polarizing plate which may enhance the efficiency of light utilization of a display device such as a liquid crystal display device and improve the brightness.

The present invention provides a charge-transporting varnish comprising a charge-transporting substance containing a fluorine atom, a charge-transporting substance not containing a fluorine atom, a dopant substance containing a heteropolyacid, and an organic solvent; wherein the charge-transporting substance containing a fluorine atom is The transporting substance is a tetraarylbenzidine compound selected from at least one of triarylamine compounds and tetraarylbenzidine compounds, at least one aryl group of which is substituted by an alkoxy group that may contain an ether bond, containing The polymer obtained by condensing an aryl aldehyde compound having a fluorine atom and a fluorene derivative having a carbonyl group has a weight average molecular weight of 500 to 200,000, and the charge-transporting substance not containing a fluorine atom is an oligoaniline compound. The charge-transporting varnish can form a thin film capable of realizing an organic EL element having excellent luminance characteristics even when it is used as a single layer in a state of being in contact with the anode and the light-emitting layer.

An optical adjusting member according to the invention includes a base member having optical transparency and a plurality of linear members provided on the base member and having optical transparency. A section of the linear member orthogonal to the lengthwise direction of the linear member includes a triangular first sectional part defined by first to third sides and an approximately triangular second sectional part. The second sectional part has a smaller area than that of the first sectional part and defined by fourth to sixth sides. The first side of the first sectional part is in contactwith the surface of the base member. The second sectional part is formed on the second side of the first sectional part, and the fourth side of the second sectional part is in contact with the secondside of the first sectional part.

The present invention relates to a self-luminous photosensitive resin composition, a color filter and an image display device, and more specifically, to a self-luminous photosensitive resin composition comprising an alkali-soluble resin, photoluminescent quantum dot particles, A photopolymerizable compound, a photopolymerization initiator, and a solvent. The alkali-soluble resin has a polymerizable unsaturated bond in its structure and has an acryloyl equivalent of 300 to 2,000 g / eq. The present invention can provide a self-illuminating photosensitive resin composition for a high-quality color filter having excellent luminance characteristics without problems such as reduction in light efficiency and poor photosensitive characteristics in a hard-baking step.

A structure of a slot feature for a shadow mask in which, on the assumption that the width at the point of 1 / 2 in a vertical direction in the feature of slots of the shadow mask is 'Sw', horizontal distances from a virtual vertical line passing an apex of a concave portion of a slot at a marginal portion to a protrusion portion formed at both upper and lower sides on the basis of the width Sw line are 'M' and 'N', and angles inclined in the direction of the protrusion portion from the virtual straight line passing the apex of the curved protrusion portion formed at the opposite side of the concave portion are 'P' and 'Q', there are at least one and more mask slot satisfying a formula of M > 0, N > 0, P > 0 DEG , Q > 0 DEG . The shape of electron beams by positions on the screen are identical to each other, and the shape of electron beam at the left and right sides of marginal portion can be maintained in a straight line in the vertical direction. Accordingly, a purity margin of the electron beam can be increased and brightness characteristics can be improved, and thus, a quality of color reproduction can be heightened.

Provided is a triarylamine derivative represented by formula (1). (In the formula, Ar1-Ar4 each independently represent a phenyl group, 1-naphthyl group, 2-naphthyl group, 1-anthryl group, 2-anthryl group, 9-anthryl group, 1-phenanthryl group, 2-phenanthryl group, 3-phenanthryl group, 4-phenanthryl group, or 9-phenanthryl group, and X represents a divalent group represented by formula (2). (In the formula, A represents a C1-C6 fluoroalkanediyl group.))

A display device includes a white organic light emitting device. Disclosed herein is a display device capable of improving efficiency and widening a narrow viewing angle by including white organic light emitting devices of a series structure and changing the structure of each sub-pixel.

The present invention relates to a self-luminous photosensitive resin, in particular to a self-luminous photosensitive resin containing photoluminescent quantum dots, a photopolymerization compound, a photopolymerization initiator, an alkaline soluble resin, a UV absorber and a solvent, and a color filter manufactured using the self-luminous photosensitive resin and image display devices.

A charge-transporting substance which comprises an arylamine derivative represented by formula (1), the charge-transporting substance showing satisfactory solubility in organic solvents. When a thin film produced from a charge-transporting varnish which contains the charge-transporting substance is applied as a hole injection layer, then an organic EL element having excellent luminance characteristics is rendered possible. [In formula (1), R1 to R8 each independently represent a hydrogen atom, etc.; Ar1 represents a phenyl group, etc.; n is an integer of 1 to 3; and X represents a divalent organic group represented by formula (2a) or (2b). (In formulae (2a) and (2b), R9 and R10 each independently represent a C1-20 alkyl group, etc.; R11 and R12 each independently represent a hydrogen atom or a fluorine atom; R13 to R20 each independently represent a hydrogen atom, etc.; and m is an integer of 1 to 4.)]

Provided is a fluorine atom-containing polymer which is a condensation polymer of a fluorene derivative that provides a repeating unit represented by formula (1), a fluorene derivative that provides a repeating unit represented by formula (2) and a fluorene derivative that provides a repeating unit represented by formula (3).

A charge-transporting varnish comprising: a charge-transporting substance containing an oligoaniline derivative represented by formula (1), a charge-transporting substance containing an N,N'-diarylbenzidine derivative represented by formula (2) Sexual substances, dopants and organic solvents. (In formula (1), R1 represents hydrogen, alkyl, alkenyl, alkynyl, aryl or heteroaryl, R2~R7 represents hydrogen, halogen, nitro, cyano, amino, aldehyde, hydroxyl, thiol group, sulfonic acid group, carboxylic acid group, alkyl group, alkenyl group, alkynyl group, aryl group, heteroaryl group, ‑NHY1, ‑NY2Y3, ‑C(O)Y4, ‑OY5, ‑SY6, ‑SO3Y7, ‑C (O)OY8, -OC(O)Y9, -C(O)NHY10 or -C(O)NY11Y12 base.) (In formula (2), R8~R15 represent hydrogen, alkyl, alkenyl or alkynyl, Ar1 and Ar2 represent groups represented by formula (3) or (4).)

A charge-transporting substance comprising an arylamine derivative represented by the formula (1) exhibits good solubility in an organic solvent, when a film made of a charge-transporting varnish containing the charge-transporting substance is applied to a hole When the layer is injected, an organic EL element having excellent luminance characteristics can be realized. [In the formula, R 1 ~R 8 denote hydrogen atoms etc. independently of each other; Ar 1 represents a phenyl group, etc.; n represents an integer of 1 to 3; and X represents a divalent organic group represented by formula (2a) or (2b). (where, R 9 and R 10 Each independently represents an alkyl group with 1 to 20 carbon atoms; R 11 and R 12 independently represent a hydrogen atom or a fluorine atom; R 13 ~R 20 Each independently represents a hydrogen atom, etc.; m represents an integer of 1-4. )]