Back to results
US 7,982,812 B2Granted
Display device
AssigneeSamsung Electronics Co., Ltd.
InventorsSoon-Joon Rho, Min-Sik Jung, Baek-Kyun Jeon, Hee-Keun Lee
Life of this patent
Estimating the term…
Abstract
In a display device, first and second substrates parallel to each other are arranged between first and second polarizers that are parallel to each other. A liquid crystal layer is arranged between the first and second substrates, and a light emitting layer having a quantum dot structure is arranged on the first polarizer. Also, a light source that emits a blue light is arranged under the second polarizer. Thus, the display device may improve a light utilizing efficiency, thereby improving a display quality.
Claims11
A display device comprising:
- a liquid crystal panel comprising a liquid crystal layer;
- a light source disposed under the liquid crystal panel to emit a blue light;
- and
- a light emitting layer disposed on the liquid crystal panel and excited by the blue light exiting through the liquid crystal panel to emit a light having a longer wavelength than the blue light,
- wherein the liquid crystal panel comprises a first pixel area, a second pixel area, and a third pixel area,
- the light emitting layer comprises a first color light emitting layer, a second color light emitting layer, and a third color light emitting layer that are corresponding to the first, second, and third pixel areas in a one-to-one fashion, and
- the first, second, and third color light emitting layers comprise quantum dot phosphors having different quantum dot sizes from each other to emit different color light from each other.
4 more elements
Dependencies are inferred from the claim text.