LG developed quantum dot LED backlight panel color gamut expanded by 30%
It sounds somewhat abstract. The so-called quantum dot is a semiconductor particle with a diameter between a few nanometers and 20 nanometers. This particle often has a band gap at its location, so it is suitable for luminescent materials.
With this quantum dot LED as the backlight, the color purity of the liquid crystal panel will be further improved, and the color gamut will be expanded by 30%.
LG's new LCD panel is 3.2 inches in size, with a resolution of 480 x 800 pixels, a dot pitch of 0.087mm and a brightness of 450 lumens.
In general, increasing the color gamut of a liquid crystal panel in RGB color mode tends to cause an increase in power consumption. This is because, in order to expand the gamut range, the color purity of the color filter is increased, and the latter is increased to lower the light transmittance. In order to maintain the brightness of the panel, it is necessary to increase the brightness of the backlight, thereby increasing the power consumption.
The quantum dot LED backlight does not need to enhance the color density of the color filter while improving the color purity, so the power consumption of the liquid crystal panel is not improved. Moreover, by changing the size of the quantum dots, the quantum dot LED illumination wavelength can be controlled.
LG did not disclose the materials used in this quantum dot LED backlight and the mass production time of the liquid crystal panel.
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