Abstract: Disclosed are a leadframe, a bracket and an LED device. The leadframe includes a first photo-etched metal part, having a first electrode and a chip placement layer thereon, which has a greater length for short and long edges than those of the first electrode; and a second photo-etched metal part, composed of a second electrode and a connection layer thereon, which has a greater length for short and long edges than those of the second electrode; wherein a first long edge of the chip placement layer is flush with a first long edge of the first electrode, and a first long edge of the connection layer is flush with a first long edge of the second electrode; and wherein the chip placement layer and the connection layer are provided with L-shaped pins at corners of their first long edges to cover sidewalls of the corresponding corners.

Abstract: An LED device and a bracket thereof. The bracket includes a first photo-etched metal part, composed of a first electrode and a chip placement layer stacked thereon, wherein an area of the chip placement layer is greater than an area of the first electrode; a second photo-etched metal part, composed of a second electrode and a connection layer stacked thereon; wherein a first insulation trench is provided between the first electrode and the second electrode, and a second insulation trench is provided between the chip placement layer and the connection layer. The LED device and the bracket thereof can increase the placement area for placing LED chips, thereby improving the luminance of the LED device.

Abstract: A white LED including red phosphor, at least one blue LED chip and at least one green LED chip, wherein a red light, a blue light and a green light are mixed simultaneously to produce a white light. The red phosphor comprises a first red phosphor and a second red phosphor. The first red phosphor is made from a substance having structure formula M2AX6:Mn4+, wherein the element M is selected from Li, Na, K, Rb or Cs, the element A is selected from Ti, Si, Ge or Zr, and the element X is selected from F, Cl or Br; the ratio of the second red phosphor to the red phosphor ranges from 0.01% to 15%. Further provided is a backlight module. The adjustably colored points of a device comprising M2AX6:Mn4+ are achieved by adding a second red phosphor to the red phosphor comprising M2AX6:Mn4+.

Abstract: A red luminophor, LED device and method for making the LED device. The red luminophor includes one or more materials selected from SrLiAl3N4:Eu2+, CaLiAl3N4:Eu2+, Sr4LiAl11N14:Eu2+ and Li2Ca2(Mg2Si2N6):Eu2+. The LED device includes the red luminophor. The method for making the LED device includes preparing a carrier; installing a blue LED onto the carrier; mixing the red luminophors and the transparent sealant to form a mixture; dispensing the mixture on the blue LED and the carrier to form an integration; and heating and curing the integration. The red luminophor has continuous light radiation in the wavelength range of 600 nm-750 nm, with the emission peak at 650-680 nm and the FWHM of less than 90 nm. Its emission light intensity at the wavelength of 730 nm is not less than 30% of its maximum emission light intensity, which matches the absorption needs of phytochrome of plant.