Abstract: A display apparatus includes light-emitting elements configured to emit light in a screen, a louver fixed on the screen with a fastener, and a member disposed on a surface of the louver around the fastener and configured to reflect, in multiple directions, external light incident to a portion around the fastener or absorb the external light.

Abstract: A display apparatus includes light-emitting elements configured to emit light in a screen, a louver fixed on the screen with a fastener, and a member disposed on a surface of the louver around the fastener and configured to reflect, in multiple directions, external light incident to a portion around the fastener or absorb the external light.

Abstract: A light-emitting element includes a casing including a recess, an LED chip disposed within the recess of the casing, and a sealing member permitting passage of light emitted by the LED chip and including a raised curved surface that is curved outward from the casing at an interface with a space external to the casing.

Abstract: A light-emitting element includes a casing that includes a recess, an LED chip disposed on a bottom surface of the recess of the casing, a sealing member to close the recess and permit passage of light emitted by the LED chip. The sealing member includes an interface with a space external to the casing, the interface includes an inclined portion at least at a peripheral edge portion of the sealing member, and the inclined portion gradually approaches a bottom surface of the recess as the inclined portion gets farther away from an optical axis of the LED chip.

Abstract: A display device includes a substrate having light emitting elements for display on a front surface; a substrate supporting body having an opening in the center and positioned on the back surface side of the substrate to support a peripheral region of the substrate; a case body positioned on the back surface side of the substrate supporting body and covering a part of the center opening; a fan unit arranged in the case body; a wind path plate arranged between the fan unit and the back surface of the substrate and forming a wind path to pass airflow generated by driving the fan unit only on the back surface side of the substrate; and a power supply arranged in the case body and on the back surface of the wind path plate; and wherein the airflow impinges the wind path plate through the fan, thereafter passes through the wind path and is discharged to the outside from the back side of the wind path plate.

Abstract: A display device includes a substrate having light emitting elements for display on a front surface; a substrate supporting body having an opening in the center and positioned on the back surface side of the substrate to support a peripheral region of the substrate; a case body positioned on the back surface side of the substrate supporting body and covering a part of the center opening; a fan unit arranged in the case body; a wind path plate arranged between the fan unit and the back surface of the substrate and forming a wind path to pass airflow generated by driving the fan unit only on the back surface side of the substrate; and a power supply arranged in the case body and on the back surface of the wind path plate; and wherein the airflow impinges the wind path plate through the fan, thereafter passes through the wind path and is discharged to the outside from the back side of the wind path plate.

Abstract: A display fluorescent lamp comprises; a dielectric cylindrical container having a large-diameter portion in which rare gas is sealed and a small-diameter portion which is almost coaxially connected with the large-diameter portion at one end of the large-diameter portion, the outside diameter thereof being smaller than that of the large-diameter portion; a light emitting portion which is formed at the other end of the large-diameter portion and has permeability; an internal electrode which is inserted into the cylindrical container from the other end of the small-diameter portion which is not connected with the large-diameter portion; a fluorescent substance layer formed on the inside face excluding that in which the light emitting portion is formed, of the large-diameter portion of the cylindrical container; and an external electrode formed on the outside face of the large-diameter portion excluding a portion in which the light emitting portion of the cylindrical container is formed, the length in the axial d