Abstract: A light emitting device includes a substrate, a plurality of light sources, a partitioning member and a diffuser panel. The light sources are arranged on the substrate. Each of the light sources has a light emitting diode. The partitioning member includes a plurality of wall portions defining a plurality of sections respectively surrounding at least one of the light sources. The wall portions include top portions. The diffuser panel is arranged above the light sources. The diffuser panel defines a plurality of grooves respectively accommodating the top portions of the partitioning member.

Abstract: A light source device includes a plurality of light sources arranged in a matrix, a substrate, and a reflective member. The reflective member includes first walls defining a first region entirely surrounded by the first walls in a plan view, and second walls located on an outer side of the first walls, the second walls defining a second region having an opening facing outside of the reflective member and a third region. An area of the second region is greater than an area of the third region in the plan view. The light sources are disposed respectively in the first region and in the second region while none of the light sources is disposed in the third region.

Abstract: A light source device includes a plurality of light sources arranged in a matrix, a substrate, and a reflective member. The reflective member includes first walls defining a first region entirely surrounded by the first walls in a plan view, and second walls located on an outer side of the first walls, the second walls defining a second region and a third region each only partially surrounded by the second walls in the plan view such that an area of the second region is equal to or greater than a half of an area of the first region and an area of the third region is less than the half of the area of the first region in the plan view. The light sources are disposed respectively in the first region and in the second region while none of the light sources is disposed in the third region.

Abstract: A light emitting device includes a resin package having a rectangular shape in a top view and two short-side lateral surfaces and two long-side lateral surfaces. The two short-side lateral surfaces include a first external surface and a second external surface located on an opposite side from the first external surface. The two long-side lateral surfaces include a third external surface and a fourth external lateral surface located on an opposite side from the third external lateral surface. The lead is not exposed on the third external lateral surface nor the fourth external lateral surface. The first lead is exposed at the first external lateral surface and the second external lateral surface, respectively flush with the resin member at the first external lateral surface and the second external lateral surface. The second lead is exposed at the second external lateral surface, flush with the resin part at the second external lateral surface.

Abstract: A light source device includes a plurality of light sources arranged in a matrix, a substrate, and a reflective member. The reflective member includes first walls defining a first region entirely surrounded by the first walls in a plan view, and second walls located on an outer side of the first walls, the second walls defining a second region and a third region each only partially surrounded by the second walls in the plan view such that an area of the second region is equal to or greater than a half of an area of the first region and an area of the third region is less than the half of the area of the first region in the plan view. The light sources are disposed respectively in the first region and in the second region while none of the light sources is disposed in the third region.

Abstract: A light emitting device includes a substrate, a demarcating member and a light-diffusing plate. The substrate has a plurality of light sources. The demarcating member includes a plurality of wall parts defining a plurality of compartments respectively corresponding to the light sources with each of the light sources being surrounded by corresponding ones of the wall parts defining a single compartment. Each of the wall parts include a ridge part and an inclined surface part. The light-diffusing plate is disposed above the light sources and having a plurality of first protrusions disposed on a first surface of the light-diffusing plate facing the substrate. Each of the first protrusions overlaps the inclined surface part of each of corresponding ones of the wall parts in a plan view. Each of the first protrusions surrounds a corresponding one of the light sources in the plan view.

Abstract: A method of determining a chromaticity rank of a light emitting device includes selecting the light emitting device having a chromaticity rank in a region surrounded by four defining points on a 1931 CIE Chromaticity Diagram. A ratio of a distance in a y-direction between, of the four defining points, two defining points furthest from each other in the y-direction to a distance in an x-direction between, of the four defining points, two defining points furthest from each other in the x-direction is 0.5 or less A peak light emission wavelength of the blue light emitting element is in a range of 447 to 452 nm, a peak light emission wavelength of the green light emitting element is in a range of 520 to 541 nm, and a peak light emission wavelength of the red light emitting element is in a range of 630 to 632 nm.

Abstract: A light-emitting device includes: a resin package including: a lead part including a first lead and a second lead, each including a main body portion and a raised portion connected to the main body portion, wherein an upper surface of each of the first lead and the second lead includes a first primary surface portion in the main body portion and a curved portion in the raised portion in a cross-sectional view taken in a direction perpendicular to an upper surface of the lead part, and wherein the curved portion is continuous with and curved upward from an end portion of the first primary surface portion, a resin portion, and a recess defined by a portion of the upper surface of the lead part and the resin portion; and a light-emitting element mounted in the resin package. The curved portion is buried in the resin portion.

Abstract: A light emitting device includes a substrate, a plurality of light sources, a partitioning member and a diffuser panel. The light sources are arranged on the substrate. Each of the light sources has a light emitting diode. The partitioning member includes a plurality of wall portions defining a plurality of sections respectively surrounding at least one of the light sources. The wall portions include top portions. The diffuser panel is arranged above the light sources. The diffuser panel defines a plurality of grooves respectively accommodating the top portions of the partitioning member.

Abstract: A lead frame includes: a plurality of units each including a first lead portion and a second lead portion arranged in a first direction, wherein the units are arranged in the first direction and in a second direction perpendicular to the first direction, and the first lead portion and the second lead portion of each unit are adjacent, in the second direction, to the first lead portion and the second lead portion of an adjacent one of the units that is adjacent in the second direction; a plurality of first suspension portions; and a plurality of connecting portions. Each of the first suspension portions connects, in the second direction, the first lead portions of units that are adjacent to each other in the second direction.

Abstract: A light-emitting device includes: a base having an upper surface; a plurality of light sources located on the upper surface of the base; a first lenticular lens sheet disposed to face the base with the light sources between the first lenticular lens sheet and the base, the first lenticular lens sheet including a first plurality of grooves; a half mirror located on an upper surface side of the first lenticular lens sheet; and a second lenticular lens sheet disposed on an upper surface side of the half mirror, wherein the second lenticular lens sheet includes a second plurality of grooves extending in a direction that intersects a direction in which the first plurality of grooves of the first lenticular lens sheet extend.

Abstract: A light emitting device includes a resin package having a rectangular shape in a top view and two short-side lateral surfaces and two long-side lateral surfaces. The two short-side lateral surfaces include a first external surface and a second external surface located on an opposite side from the first external surface. The two long-side lateral surfaces include a third external surface and a fourth external lateral surface located on an opposite side from the third external lateral surface. The lead is not exposed on the third external lateral surface nor the fourth external lateral surface. The first lead is exposed at the first external lateral surface and the second external lateral surface, respectively flush with the resin member at the first external lateral surface and the second external lateral surface. The second lead is exposed at the second external lateral surface, flush with the resin part at the second external lateral surface.

Abstract: A lead frame includes: a plurality of units each including a first lead portion and a second lead portion arranged in a first direction, wherein the units are arranged in the first direction and in a second direction perpendicular to the first direction, and the first lead portion and the second lead portion of each unit are adjacent, in the second direction, to the first lead portion and the second lead portion of an adjacent one of the units that is adjacent in the second direction; a plurality of first suspension portions; and a plurality of connecting portions. Each of the first suspension portions connects, in the second direction, the first lead portions of units that are adjacent to each other in the second direction.

Abstract: A light-emitting device includes: a base having an upper surface; a plurality of light sources located on the upper surface of the base; a first lenticular lens sheet disposed to face the base with the light sources between the first lenticular lens sheet and the base, the first lenticular lens sheet including a first plurality of grooves; a half mirror located on an upper surface side of the first lenticular lens sheet; and a second lenticular lens sheet disposed on an upper surface side of the half mirror, wherein the second lenticular lens sheet includes a second plurality of grooves extending in a direction that intersects a direction in which the first plurality of grooves of the first lenticular lens sheet extend.

Abstract: A light-emitting device includes: a resin package including: a lead part including a first lead and a second lead, each including a main body portion and a raised portion connected to the main body portion, wherein an upper surface of each of the first lead and the second lead includes a first primary surface portion in the main body portion and a curved portion in the raised portion in a cross-sectional view taken in a direction perpendicular to an upper surface of the lead part, and wherein the curved portion is continuous with and curved upward from an end portion of the first primary surface portion, a resin portion, and a recess defined by a portion of the upper surface of the lead part and the resin portion; and a light-emitting element mounted in the resin package. The curved portion is buried in the resin portion.

Abstract: A lead frame includes: a plurality of units each including a first lead portion and a second lead portion arranged in a first direction, wherein the units are arranged in the first direction and in a second direction perpendicular to the first direction, and the first lead portion and the second lead portion of each unit are adjacent, in the second direction, to the first lead portion and the second lead portion of an adjacent one of the units that is adjacent in the second direction; a plurality of first suspension portions; and a plurality of connecting portions. Each of the first suspension portions connects, in the second direction, the first lead portions of units that are adjacent to each other in the second direction.

Abstract: A lead frame includes: a plurality of units each including a first lead portion and a second lead portion arranged in a first direction, wherein the units are arranged in the first direction and in a second direction perpendicular to the first direction, and the first lead portion and the second lead portion of each unit are adjacent, in the second direction, to the first lead portion and the second lead portion of an adjacent one of the units that is adjacent in the second direction; a plurality of first suspension portions; and a plurality of connecting portions. Each of the first suspension portions connects, in the second direction, the first lead portions of units that are adjacent to each other in the second direction.

Abstract: A method of determining a chromaticity rank of a light emitting device includes selecting the light emitting device having a chromaticity rank in a region surrounded by four defining points on a 1931 CIE Chromaticity Diagram. A ratio of a distance in a y-direction between, of the four defining points, two defining points furthest from each other in the y-direction to a distance in an x-direction between, of the four defining points, two defining points furthest from each other in the x-direction is 0.5 or less A peak light emission wavelength of the blue light emitting element is in a range of 447 to 452 nm, a peak light emission wavelength of the green light emitting element is in a range of 520 to 541 nm, and a peak light emission wavelength of the red light emitting element is in a range of 630 to 632 nm.

Abstract: The light emitting device package of the present invention has a longitudinal direction (as viewed from above) and a transverse direction perpendicular to the longitudinal direction, and is provided with a first and second lead-frame lined-up in the longitudinal direction and molded resin holds the first and second lead-frames integrally. The package is characterized in that the first lead-frame has a main body and an extension that extends from the main body with a narrowed width towards the second lead-frame. Further, a recess is established in the bottom surface of the first lead-frame, and at least part of the exposed region of the bottom surface of the extension is separated from the exposed region of the bottom surface of the main body by the molded resin that fills the recess.

Abstract: The light emitting device package of the present invention has a longitudinal direction (as viewed from above) and a transverse direction perpendicular to the longitudinal direction, and is provided with a first and second lead-frame lined-up in the longitudinal direction and molded resin holds the first and second lead-frames integrally. The package is characterized in that the first lead-frame has a main body and an extension that extends from the main body with a narrowed width towards the second lead-frame. Further, a recess is established in the bottom surface of the first lead-frame, and at least part of the exposed region of the bottom surface of the extension is separated from the exposed region of the bottom surface of the main body by the molded resin that fills the recess.