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US 8,132,952 B2Granted
Backlight panel employing white light emitting diode having red phosphor and green phosphor
AssigneeSeoul Semiconductor Co., Ltd.
InventorsSeung Ryeol Ryu, Seok Jin Kang
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Abstract
Disclosed is a backlight panel employing a white light emitting diode. The white light emitting diode includes a blue light emitting diode chip and red and green phosphors positioned over the blue light emitting diode chip. Accordingly, since the backlighting can be performed using white light with distinct red, green and blue wavelengths, the color reproducibility can be enhanced. Further, since the white light can be implemented with a single light emitting diode, the manufacturing costs and thickness of the backlight panel can also be reduced.
Claims8
A backlight panel, comprising:
- a diffusion plate comprising a top surface and a bottom surface;
- a plurality of white light emitting diodes arranged below the bottom surface of the diffusion plate, the white light emitting diodes to emit light directly onto the bottom surface of the diffusion plate;
- and
- a reflection sheet arranged below light exit surfaces of the white light emitting diodes, the reflection sheet to reflect light toward the diffusion plate,
- wherein each white light emitting diode comprises a blue light emitting diode chip and a red phosphor and a green phosphor arranged on the blue light emitting diode chip.
2 more elements
Dependencies are inferred from the claim text.