Introduction to uled TV
ULED TV optimizes the TV from the backlight source to enhance the TV effect. It adopts two image quality improvement technologies, namely the backlight zone dynamic control technology and the HiView image engine. It has obtained a number of technical patent certifications in the United States, Europe and China, which is a real improvement. Improved the quality display effect.
Introduction to Quantum Dot TV
Quantum dot TV is a TV that uses quantum dot technology as a backlight, and is a type of LCD TV. It is different from traditional LCD TVs mainly in the use of different backlight sources, which brings many differences in performance. Compared with traditional LED backlight traditional LCD TVs, it has more advantages in picture quality and energy saving and environmental protection. It has become a new LCD TV in the industry. Development direction. At the end of 2014, domestic and foreign manufacturers have successively launched TVs equipped with quantum dot technology.
Which is better, uled TV or quantum dot T
Uled TV or quantum dot TV which is better? The editor cited the advantages of uled TV and quantum dot TV one by one, and compare which one is better to see who is most favored by you.
What's so good about quantum dot TV
Since the title "Quantum Dot TV" often appears on the Internet recently, many friends may think that this is a brand new thing like plasma TV. In fact, quantum dot TVs are still LCD TVs. The biggest difference from previous LCD TVs is that it uses a brand-new backlight technology, and the display quality of TVs based on this technology has been significantly improved.
Since flat-panel TVs became popular around 2006, LCD TVs have gradually phased out CRT TVs, rear projection TVs and plasma TVs with their industrial advantages. However, the recognized problem of poor display effect of LCD TVs has always existed. This is mainly manifested in comparison with plasma: LCD TVs have low contrast (resulting in insufficient blackness), low color gamut (resulting in insufficient colors), and long response time (for watching football games). Sometimes there will be smear). Quantum dot TV solves the low color gamut of these three problems, and surpasses plasma TV in one fell swoop.
(The black dotted line is the color gamut of quantum dot TV, and the white dotted line is the traditional TV color gamut)
TIPS
What is color gamut?
In layman's terms, the color gamut of a TV can be understood as the range of colors that can be displayed. The wider the color gamut, the better the color performance (of course, it depends on the color grading level of the manufacturer). The NTSC color gamut standard is usually used in the television industry. We can understand the color gamut level of different types of televisions through objective values.
NTSC color gamut coverage of common display equipment CIE1931 value (the bigger the better):
High-end CRT TV ≈70%
Plasma TV 81%
Ordinary LED LCD TV 68-72%
Quantum Dot LCD TV 110%
ULED TV 130%
OLED TV 85% (LG brand)
From this comparison, it can be seen that the quantum dot TV is based on mature liquid crystal technology, but the color gamut coverage is not inferior to that of the OLED TV, which is considered to be the star of the future. It is indeed very attractive. But we should also clearly realize that the color gamut is only part of it, and plasma and OLED still have an overwhelming advantage in contrast and response time.
(The yellow substance in the tube is the mysterious quantum dot material)
What's so good about ULED TV
(1) High color gamut
See more colors and high color gamut displays. ULED uses blue chips to excite red and green phosphors or quantum dots. Through hundreds of LED backlight spectra and dozens of color filters, a set of LCD module colors is established. Based on the simulation model of the domain, and optimized through thousands of experimental data, a relatively good color filter and high color gamut LED backlight spectrum are designed. After being tested by an authoritative organization, the color gamut display range of the upgraded ULED1.5 generation product reaches 120% of the BT.709 high-definition TV color gamut standard value. ULED1.5 generation products are designed with Vivid (Vivid) mode, in this mode users can watch more stunning image colors.
PCR precise color reproduction technology ULED
Using narrow spectrum and high color gamut technology, the purity of the three primary colors of RGB is higher, and its precise color reproduction technology can perform adaptive color processing on the screen to ensure the detailed expression and accurate restoration of image colors.
(2) High contrast, see more details. Multi-zone backlight dynamic control technology ULED divides the backlight into multiple independent control units, which can accurately adjust the brightness of the corresponding backlight area according to the brightness and darkness distribution of each frame of image. ULED pioneered digital-analog hybrid fine dimming, with a dynamic contrast ratio of 8 million:1, which is 3 orders of magnitude higher than ordinary 4K TVs and 2 orders of magnitude higher than high-end 4K TVs.
Adaptive zone peak brightness enhancement technology ULED pioneered adaptive peak brightness enhancement technology and dark field image detail enhancement technology, which can analyze the brightness distribution characteristics of each frame of image, and improve the corresponding image scenes with rich light and dark levels and highlight parts of the screen The peak brightness and maximum brightness of the area backlight can be increased by more than 3 times, extending the contrast of light and dark of the picture, making the image level more rich and the three-dimensional feeling enhanced.
Continuous grayscale curve adjustment technology ULED adjusts the analog voltage of the liquid crystal drive and 14bit image processing technology through the module drive technology to achieve continuous adjustment of the grayscale curve, making the image grayscale transition clear and more in line with the human visual experience, and the image display is more Smooth and fine, the dark field is the most expressive. The application of this technology in the medical field can help doctors distinguish the nuances of images, and in the field of civilian LCD TV display, it can bring users a layered, detailed and excellent picture effect.
Digital optical uniformity technology ULED uses Hisense’s unique digital optical uniformity technology to adjust the backlight of the module and the deflection of liquid crystal molecules to reduce the difference in optical brightness of adjacent LEDs and achieve gradual and uniform transition. Its gray response deviation rate is less than 3% , Less than the 15% standard of international medical display gray-scale response deviation rate (medical has the highest requirement for gray-scale performance accuracy)
(3) High-speed response
See more clearly ULED uses a high-speed scanning system of up to 1440Hz, which makes the liquid crystal in the backlight black field scanning state during the rotation process, reduces the residual image of the human eye, and realizes a smooth moving picture.
In summary, both quantum dot TVs and ULED TVs are upgrades of LCD TV backlight technology. The technologies used by the two are similar, and there is no obvious difference, but the color gamut of ULED TVs is wider. ULED is a traditional quantum An upgraded version of the TV.
Our other product:
