Abstract: Embodiments of the present disclosure relates to a light emitting substrate and a display device. The light emitting substrate includes a substrate; a plurality of light emitting units on the substrate, at least one of the plurality of light emitting units includes at least two light emitting element strings, and the at least two light emitting element strings are connected in parallel with each other; and a same light emitting element string includes at least two light emitting elements sequentially connected in series; in a same light emitting unit, a plurality of elements are distributed in an array, and the same light emitting unit includes at least two light emitting elements connected in series and located in different rows, and further includes at least two light emitting elements connected in series and located in different columns.

Abstract: The patent application discloses an LED module. The LED module is removably connected to a source of constant current. The LED module may comprise a substrate and an electrical circuit. The substrate may have a parallel top and bottom side, a curved side connected to both ends of the top and bottom sides to form a quadrilateral shape. The electrical circuit is mounted and molded on the substrate. The electrical circuit may comprise an LED.

Abstract: The patent application discloses an easily curved LED system. The LED system may comprise a printed circuit board (“PCB”). The PCB may have at least one layer. An aperture through all layers of the PCB may exist and may be interposed between a location for a LED at a first side of the PCB and a location for a chipset on a second side PCB board.

Abstract: Provided is a genetically modified microorganism for the production of a derivative of 4-hydroxy-2-ketobutyrate selected in the group consisting of 1,3-propanediol, 3-hydroxypropionaldehyde, 3-hydroxypropionate and 2,4-dihydroxybutyrate, the microorganism further having a gene coding for a mutant phosphoserine aminotransferase having an improved L-homoserine aminotransferase activity converting by transamination L-homoserine into 4-hydroxy-2-ketobutyrate. Also provided is a method for the production of derivatives of 4-hydroxy-2-ketobutyrate selected in the group consisting of 1,3-propanediol, 3-hydroxypropionaldehyde, 3-hydroxypropionate and 2,4-dihydroxybutyrate by culturing the genetically modified microorganism in a culture medium and recovering the desired derivative.

Abstract: The present invention concerns a genetically modified microorganism for the production of a derivative of 4-hydroxy-2-ketobutyrate selected in the group consisting of 1,3-propanediol, 3-hydroxypropionaldehyde, 3-hydroxypropionate and 2,4-dihydroxybutyrate, said microorganism further comprising a gene coding for a mutant phosphoserine aminotransferase having an improved L-homoserine aminotransferase activity converting by transamination L-homoserine into 4-hydroxy-2-ketobutyrate. The invention also concerns a method for the production of derivatives of 4-hydroxy-2-ketobutyrate selected in the group consisting of 1,3-propanediol, 3-hydroxypropionaldehyde, 3-hydroxypropionate and 2,4-dihydroxybutyrate by culturing said genetically modified microorganism in a culture medium and recovering the desired derivative.