Quantum point LCD TV and ordinary LED LCD TV compared to no screen color on the advantages
author:Admin
pubtime:2017-09-07
Beijing time on July 25 news, authoritative research that "quantum dots TV does not have the advantage." Recently, Tsinghua University Institute of color published the latest issue of experimental research report - "screen color contrast study" for ordinary LED LCD TV and quantum dot LCD TV, the screen color performance measurement and comparative analysis, The results found: advertising hype for the "better color" of the quantum point of the LCD TV, compared with the ordinary LED LCD TV, there is no screen color on the edge.
This article comes from: http://www.51touch.com/lcd/news/dynamic/2017/0725/47843.html
The Tsinghua Color Research Institute, which publishes this report, is committed to carrying out high-level color and image theory and application research and services, popularizing and promoting the concept of color science. The choice of LCD TV screen color technology as a research direction, In its color science in the development of scientific and technological representation.
In order to understand the detailed color contrast between the quantum dot LCD TV and the ordinary LED LCD TV, the experiment takes the measurement of the different positions of the two TV screens, and records the red (R), green (G), blue (B (X1-xu) / (xd-xu), the average LED liquid crystal TV and the quantum dot are obtained, and the average value of the coordinate value is obtained, and the average value of the coordinate value is obtained. LCD TV R / G / B three-color block excitement purity.
The closer the excitatory purity value is to 1, the higher the color purity of the color. Comparison of experimental results, found that the difference between the two excitement purity, almost no difference between the naked eye to distinguish. For B color block, ordinary LED LCD TV color purity is even better than the quantum dot LCD TV.
In addition to measuring the R / G / B tri-color fast excitement purity, the spectral reflectance curve (SPD) of the R / G / B tricolor patches displayed on the two screens was measured by the THOUSLITEFS Spectral Illuminance Meter and the MeasureToolV1.0 measurement software. And brightness Y, the results shown in Figure.
Spectral reflectivity curve width narrowing that the color is more pure, can be seen from the figure, for the R / G color block, ordinary LED LCD TV brightness value is greater than the quantum dot LCD TV, and for the B color block, the two brightness values equal. On the whole, ordinary LED LCD TV brightness is better than quantum dot LCD TV.
Watch the screen with the naked eye, always on the color of the decision is full of subjective consciousness. The "top-of-the-line", "better-performing" quantum-point TV, did not show up in the real test, and did not match the dazzling performance of the match, not only the difference in the purity of the quantum dots, but also the performance of the quantum dots.
This is why the market appears a lot of doubt on the quantum point of sound. Consumers in the mall to experience the dots of the spectacular shock of the screen, home but found that "color too Yan, imaging impure" has become annoying aftermarket problems. Experts explained that this is because the quantum dot TV in the display, the green easily mixed with other color wavelengths, showing the color is often partial yellowish yellow. Visual effects, is added a layer of beauty of the saturation filter, long-term attention will bring eye health risks.
Businesses boast the great innovation of the so-called color technology, in the face of scientific experimental tests and real market voices, revealing the expense of consumer health in exchange for shocking the greed of the picture. We really look forward to the market can really survive the scientific test of the color innovation technology, which requires both the deep color of the performance technology and precipitation, but also need to return to the essence of integrity, skim the business market impetuous self-shouting.
