LG development of quantum dot LED backlight panel display color gamut expansion 30%

LG just in the end of the SID International Conference on information display shows a new panel, the panel using quantum dots (quantum-dot) led as the backlight, so that the display panel color gamut expansion 30%. The so-called quantum dot is a diameter of a few nanometers in the -20 nano particles between the semiconductor particles, the presence of the particles often appear in the band gap (bandgap), it is suitable for light-emitting materials. After using the quantum dot LED as the backlight, the color purity of the LCD panel will be further improved, and the color gamut will be expanded by 30%. Generally speaking, in the RGB color mode to increase the color gamut of the LCD panel will often lead to increased power consumption. This is because, in order to expand the scope of color gamut to improve the color purity of color filters, and the latter will improve the light transmittance. In order to maintain the brightness of the panel, it is necessary to improve the brightness of the backlight, thereby increasing the power consumption. And this kind of quantum dot LED backlight to improve the color purity at the same time do not need to strengthen the color filter color concentration, so the LCD panel power consumption will not be improved. And by changing the size of the quantum dots, the quantum dot LED light-emitting wavelength can be controlled. LG did not disclose the material used in this quantum dot LED backlight and the production time of the LCD panel.