A liquid crystal display device includes a light source, a light collection part, a liquid crystal part, and an anisotropic diffusion layer. The light source emits light. The light collection part collects the light emitted from the light source in the front direction of the liquid crystal display device so that, when an image is displayed, the light collecting property in a left-right direction is different from the light collecting property in an updown direction. The liquid crystal part controls a transmission state of the light collected by the light collection part using a liquid crystal. The anisotropic diffusion layer anisotropically diffuses the light transmitted through the liquid crystal part.

A light bulb shaped lamp (1) according to the present invention includes: a base board (120); an LED chip (110) mounted on the base board (120); a base (190) for receiving power from outside; at least two power-supply leads (140) for supplying power to the LED chip (110); and a globe (170) for housing the base board (120), the LED chip (110), and the power-supply leads (140), the globe being partially attached to the base (190), the base board (120) is translucent, each of the two power-supply leads (140) is extended from a side of the base toward inside of the globe and is connected to the base board (120), and the LED chip (110) is provided between (i) a portion at which one of the two power-supply leads (140) and the base board (120) are connected and (ii) a portion at which the other of the two power-supply leads (140) and the base board (120) are connected.

A light bulb shaped lamp (1) according to the present invention includes: a base board (120); an LED chip (110) mounted on the base board (120); a base (190) for receiving power from outside; at least two power-supply leads (140) for supplying power to the LED chip (110); and a globe (170) for housing the base board (120), the LED chip (110), and the power-supply leads (140), the globe being partially attached to the base (190), the base board (120) is translucent, each of the two power-supply leads (140) is extended from a side of the base toward inside of the globe and is connected to the base board (120), and the LED chip (110) is provided between (i) a portion at which one of the two power-supply leads (140) and the base board (120) are connected and (ii) a portion at which the other of the two power-supply leads (140) and the base board (120) are connected.

The lighting device disclosed in the embodiment includes a substrate, light sources disposed on the substrate at predetermined intervals, a resin layer disposed on the substrate and the light sources, and a phosphor layer disposed on the resin layer. The phosphor layer includes a first region overlapped with some of the N light sources in a direction perpendicular to the substrate and including a flat region, and a second region extending from a side surface of the first region toward the substrate and including a curved surface. The second region includes a first point horizontally in contact with the substrate from a center of a first light source closest to the side surface of the resin layer, a second point on the curved surface, and a third point where a straight line perpendicular to the substrate passes the center of the first light source, and a second distance from the center of the first light source to the second point is greater than a first distance from the center of the first light source to the first point, and is smaller than a third distance from the center of the first light source to the third point.

The lighting device disclosed in the embodiment includes a substrate, light sources disposed on the substrate at predetermined intervals, a resin layer disposed on the substrate and the light sources, and a phosphor layer disposed on the resin layer. The phosphor layer includes a first region overlapped with some of the N light sources in a direction perpendicular to the substrate and including a flat region, and a second region extending from a side surface of the first region toward the substrate and including a curved surface. The second region includes a first point horizontally in contact with the substrate from a center of a first light source closest to the side surface of the resin layer, a second point on the curved surface, and a third point where a straight line perpendicular to the substrate passes the center of the first light source, and a second distance from the center of the first light source to the second point is greater than a first distance from the center of the first light source to the first point, and is smaller than a third distance from the center of the first light source to the third point.

The solution relates to lighting technology, namely to LED lamps powered directly from the AC mains. The technical result is to simplify the design, improve heat dissipation and reduce the labor intensity of manufacturing high-power lamps of general use, resistant to external influences >IP65, and with a minimum cost and labor intensity. In some cases, the LED lamp contains a radiator housing made in the form of a hollow cylindrical body made of an optically transparent material; a flexible aluminum printed circuit board, on a mounting surface of which LEDs and a driver are mounted; end caps, at least one of which is provided with means for connecting to a power supply network, while the flexible printed circuit board is configured in the form of a roll, the mounting surface is disposed outward, and part of the board with the driver is bent inside the roll, while the light-emitting surface of the LEDs is immersed in a transparent material housing, and the mounting surface of the configured printed circuit board has direct thermal contact with the transparent material.

The solution relates to lighting technology, namely to LED lamps powered directly from the AC mains. The technical result is to simplify the design, improve heat dissipation and reduce the labor intensity of manufacturing high-power lamps of general use, resistant to external influences >IP65, and with a minimum cost and labor intensity. In some cases, the LED lamp contains a radiator housing made in the form of a hollow cylindrical body made of an optically transparent material; a flexible aluminum printed circuit board, on a mounting surface of which LEDs and a driver are mounted; end caps, at least one of which is provided with means for connecting to a power supply network, while the flexible printed circuit board is configured in the form of a roll, the mounting surface is disposed outward, and part of the board with the driver is bent inside the roll, while the light-emitting surface of the LEDs is immersed in a transparent material housing, and the mounting surface of the configured printed circuit board has direct thermal contact with the transparent material.

A fluorescent plate including a fluorescent phase which emits fluorescence by excitation light, and a plurality of voids, wherein, in a cross section of the fluorescent plate including cross sections of the voids, voids having an equivalent circle diameter of 0.4 micrometers or greater and 50 micrometers or smaller have a standard deviation in equivalent circle diameter of 1.5 or less.

A fluorescent plate including a fluorescent phase which emits fluorescence by excitation light, and a plurality of voids, wherein, in a cross section of the fluorescent plate including cross sections of the voids, voids having an equivalent circle diameter of 0.4 micrometers or greater and 50 micrometers or smaller have a standard deviation in equivalent circle diameter of 1.5 or less.

The lighting device disclosed in the embodiment includes a substrate, light sources disposed on the substrate at predetermined intervals, a resin layer disposed on the substrate and the light sources, and a phosphor layer disposed on the resin layer. The phosphor layer includes a first region overlapped with some of the N light sources in a direction perpendicular to the substrate and including a flat region, and a second region extending from a side surface of the first region toward the substrate and including a curved surface. The second region includes a first point horizontally in contact with the substrate from a center of a first light source closest to the side surface of the resin layer, a second point on the curved surface, and a third point where a straight line perpendicular to the substrate passes the center of the first light source, and a second distance from the center of the first light source to the second point is greater than a first distance from the center of the first light source to the first point, and is smaller than a third distance from the center of the first light source to the third point.