Abstract: A white light source has a substrate with a blue light-emitting diode placed thereon and a cap layer enclosing the blue light-emitting diode. The cap layer includes a mixture of silicon and phosphor blend at ratio of 1:0.2-0.5. The phosphor blend includes a red phosphor, a green phosphor and a yellow phosphor.

Abstract: A laminated light-emitting diode display device and a manufacturing method thereof are described. The laminated light-emitting diode display device has an insulator, a circuitry device placed on the insulator and having of a plurality of circuits interconnected with each other, and a plurality of SMT-type light-emitting diodes electrically connected to the circuits of the circuitry unit.

Abstract: A white light source has a substrate with a blue light-emitting diode placed thereon and a cap layer enclosing the blue light-emitting diode. The cap layer includes a mixture of silicon and phosphor blend at ratio of 1:0.2-0.5. The phosphor blend includes a red phosphor, a green phosphor and a yellow phosphor.

Abstract: A backlight module arranged under a flat display includes a printed circuit board being parallel to the flat display and including a plurality of LEDs, a reflection portion being a reflection wall bent from a fringe of the LEDs to extend over the LEDs, and a guide light plate being parallel to the printed circuit board. The reflection portion includes an orientation wall parallel to the reflection wall and an outlet with a direction parallel to the printed circuit board. The guide light plate has an end connecting inside the outlet of the reflection portion, a light delivering surface adjacent to the flat display, and a reflection surface arranged at a bottom thereof.

Abstract: A laminated light-emitting diode display device and a manufacturing method thereof are described. The laminated light-emitting diode display device has an insulator, a circuitry device placed on the insulator and having of a plurality of circuits interconnected with each other, and a plurality of SMT-type light-emitting diodes electrically connected to the circuits of the circuitry unit.

Abstract: A backlight module arranged under a flat display includes a printed circuit board being parallel to the flat display and including a plurality of LEDs, a reflection portion being a reflection wall bent from a fringe of the LEDs to extend over the LEDs, and a guide light plate being parallel to the printed circuit board. The reflection portion includes an orientation wall parallel to the reflection wall and an outlet with a direction parallel to the printed circuit board. The guide light plate has an end connecting inside the outlet of the reflection portion, a light delivering surface adjacent to the flat display, and a reflection surface arranged at a bottom thereof.

Abstract: An LED packaging structure has a substrate having two holes formed thereon. One of two conductive elements extends through the two holes to connect electrically to a conductive pad and a first electrode pad on the upper and lower surfaces of the substrate and the other of the two conductive elements extends through the holes to connect to the conductive strip and the second electrode pad on the upper and lower surfaces the substrate. A light-emitting chip electrically connects to the conductive pad and the conductive strip. The light-emitting chip is encapsulated by a protection colloid on the substrate, so as to make LED packaging structure easy to fabricate and avoid the short circuits of adjacent LED packaging structures due to contact between conductor materials therebetween.

Abstract: A laminated light-emitting diode display device and a manufacturing method thereof are described. The laminated light-emitting diode display device has an insulator, a circuitry device placed on the insulator and having of a plurality of circuits interconnected with each other, and a plurality of SMT-type light-emitting diodes electrically connected to the circuits of the circuitry unit.

Abstract: An LED packaging structure has a substrate having two drills formed thereon. One of two conductive elements extends through the two drills to connect electrically to a conductive pad and a first electrode pad on the upper and lower surfaces of the substrate and the other of the two conductive elements extends through the drills to connect to the conductive strip and the second electrode pad on the upper and lower surfaces the substrate. A light-emitting chip electrically connects to the conductive pad and the conductive strip. The light-emitting chip is encapsulated by a protection colloid on the substrate, so as to make LED packaging structure easy to fabricate and avoid the short circuits of adjacent LED packaging structures due to contact between conductor materials therebetween.

Abstract: A while light emitting diode light source and method for manufacturing the same are proposed. The while light emitting diode light source has a printed circuit board, and a plurality of LED units on one face of the PCB, each of the LED units comprising a substrate, a blue LED on the substrate and a red-green-yellow phosphor mixture enclosing the blue LED. The red-green-yellow phosphor mixture is a mixture of a red phosphor, a green phosphor and a yellow phosphor. The red phosphor is CaS:Eu or SrS:Eu. The green phosphor is SrGa2S4:Eu or Ca8EuMnMg(SiO4)4C12. The yellow phosphor is YAG:Ce or ThAG:Ce. The light emitted from the phosphors are mixed with blue light into white light with a satisfactory color rendering property.

Abstract: A white light source has a substrate with a blue light-emitting diode placed thereon and a phosphor mixture coated on the blue light-emitting diode and made of a red phosphor, a green phosphor and a yellow phosphor. The red phosphor can be CaS:Eu or SrS:Eu; the green phosphor can be SrGa2S4:Eu or Ca8EuMnMg(SiO4)4C12; and the yellow phosphor can be YAG:Ce or ThAG:Ce. The red phosphor, the green phosphor and the yellow phosphor emit, respectively, red light, green light and yellow light after receiving blue light from the blue light-emitting diode to mix a white light with a good color-rendering property.

Abstract: A colorless light approaching that of white light in nature, is produced by using a blue color LEDs and a green color LED are covered with a red color phosphorescent glue and a yellow phosphorescent glue in separate layers or a mixed layer.

Abstract: A colorless light approaching that of white light in nature, is produced by using a blue color LEDs and a green color LED are covered with a red color phosphorescent glue and a yellow phosphorescent glue in separate layers or a mixed layer.