Improve Color Gamut By 30%, Quantum Dot Backlight Helps LCD Picture Quality
Jan 11, 2022
Recently, new breakthroughs have been made in liquid crystal display technology, and Quantum Dot LED (Quantum Dot LED) has attracted widespread attention in the industry. After years of research, 3M, Nanosys, QDvision and other companies have developed optical films embedded with quantum dots (QDEF) and will gradually be applied to LCD backlights.
Quantum dots themselves have light-emitting properties. The quantum dots in the quantum dot film (QDEF) will generate red light (R) and green light (G) when illuminated by a blue LED backlight, and the same part of the blue light (B) transmitted through the film Mix together to obtain white light, thereby enhancing the luminous effect of the entire LCD backlight. On the one hand, this technology can effectively enhance the color saturation of the LCD. Compared with traditional high color gamut technology, quantum dot technology will increase the LCD color gamut by 30% without increasing the CF film thickness.
On the other hand, the brightness of the backlight can be increased to save energy consumption. Therefore, Σintell analysis believes that quantum dot technology will effectively solve the dilemma of high color gamut but low brightness caused by traditional methods, and high brightness must increase the number of LED chips and increase energy consumption and cost. It will undoubtedly provide the best solution for LCD products to compete with OLED in terms of high color gamut.
At present, the research and development of quantum dot backlight technology has gradually matured and is expected to be introduced to the consumer market within the year. It is understood that Samsung Electronics, LGE and TCL all exhibited LCD TVs using quantum dot backlight technology for the first time at the Berlin International Consumer Electronics Show (IFA), which opened on September 5. According to a survey by Σintell, global top-tier brand manufacturers are actively developing large-size QD LCD TV products. Among them, Samsung Electronics will mass-produce QD LCD TVs in the first quarter of next year. SDC will provide Open cell. The first batch of products will be 55" and 65" in size, and will be positioned in the ultra-high-end market.
TCL will use Huaxing 55” UHD panel and 3M QDEF, with a color gamut of 105%, and plans to mass produce it as soon as the end of 2014. LGE has also been cooperating with QD vision to develop quantum dot backlight technology and plans to launch QD LCD TVs, but in 2015 The product strategy for 2010 will continue to focus on OLED products. Sony also has plans to launch QD LCD TV products over 55'.
