The first wide color gamut evaluation specification for wide color gamut

Human vision for display devices is endless. Following the 4K resolution and HDR high dynamic range, the wide color gamut is becoming the biggest innovation in display technology in 2017. On April 13, the 3rd Flat Panel Display Technology Development Trend Forum and China's first wide color gamut product evaluation specification conference were held in Beijing. The forum was initiated by the National Quality Supervision and Inspection Center for Radio and TV Products, and the upstream and downstream enterprises and institutions in the field of joint display. Experts in medicine and color science and participating experts discussed the development trend of the flat panel display technology field and promoted new consumption hotspots for the flat panel television industry in the wide color gamut.
The theme of this industry forum is "wide color gamut, the value of enamel." Leaders of the flat panel display industry, leaders of industry associations, representatives of upstream and downstream companies, experts in the medical and color fields, and industry media attended the forum and delivered a series of keynote speeches and reports. At the meeting, Zhou Haiyan, the Department of Electronic Information of the Ministry of Industry and Information Technology, introduced the development situation of the flat panel display industry and the key work direction of this year. The Vice Secretary-General Peng Jianfeng of the Video Industry Association analyzed the development situation of the color TV industry, and TV companies and the upstream panel. Representatives from companies, such as Dolby Laboratories, also shared the latest technology trends and impact on the industry.
In addition, as the only national digital TV product testing laboratory in China, Territor Technologies has released an analysis of the industry chain of new display technologies and launched the first domestic certification of comprehensive color performance of TV products - wide color gamut authentication. The Territor Certification Center awarded a wide color gamut certificate to the products whose test results meet standards. Several products from Samsung, TCL, and Skyworth were shortlisted for the first batch of wide color gamut product certifications.
For televisions, bright colors, improved picture quality, and visual enjoyment are always the users' most essential pursuits. Compared to ordinary LCD TVs, the wide color gamut technology can make the TV display more colorful and greatly enhance the user's visual experience. Therefore, after continuing 4K resolution and HDR, the wide color gamut technology will become another hot target for consumers to pursue. Wu Hao, deputy general manager of the State Broadcasting and Television Product Quality Supervision and Inspection Center, introduced the original intention of this industry forum: From 3D to 4K, from HDR to WCG (Wide Color Gamut), every technological innovation in the display area, from From the birth to the development of popularization, many problems will be encountered, such as the standard lagging behind technology, concept proliferation, and so on. As a national-level inspection agency with third-party fairness, the only national digital TV product testing laboratory in China, we The main purpose of the launch of this forum is to establish consensus, work with upstream and downstream enterprises and institutions to grasp the industry development context, promote consumers' attention to the ability of TV color expression, and issue a wide color gamut certificate for high-performance products, with a good technical universal. The "wide color gamut" certification introduced this time not only imposes higher requirements on the color gamut coverage, which is an important indicator of the color reproduction ability of TV products, but also includes color uniformity, color vision, and color volume. The assessment of multiple dimensions and the comprehensive evaluation of color accuracy, saturation, etc. are currently the first domestic specifications to fully consider TV colors.
According to research agency data, wide-gamut TVs will grow explosively. IHS senior analyst RichardSon believes that resolution and screen size are key factors in the evolution of display technology, but the technological barriers and technology gaps between panel manufacturers have recently been reduced. Therefore, the display manufacturers are stepping up their efforts to explore emerging technologies to expand the color performance of the display, and thus occupy an advantageous position in the market. At the CES show in 2017, both the LCD TV camp and the OLED TV camp have adopted the wide color gamut as a core technology selling point. For Apple, it was already implemented on the iPad Pro and iPhone 7 screens. Color gamut standard. IHS Technology expects that by 2020, the percentage of the wide-gamut display in the display market will reach 25%. In terms of area, it is expected that the proportion of wide-gamut TV displays will increase from 52% in 2015 to 86% in 2020. Obviously, good colors, as a new type of rigid indicator of the tuyere, are becoming the main battlefield for a new round of technological competition among TV manufacturers.
In addition to discussing trends and issuing certification marks, the forum also invited experts in the fields of medicine and color to participate in discussions and shared the value of color in various fields of people’s lives. Song Wenwen, executive deputy director of the Institute of Color Research at the Center for Arts and Science at Tsinghua University, analyzed the significance of the application of the wide color gamut technology in the television industry to the consumers from the perspective of color on human visual perception and psychological perception. Not only is more color, but more professional color experience, so that the original color of ordinary high-definition television is too deep to stimulate the visual color becomes more natural, so that consumers have a more human, more intimate psychological feelings. Associate Professor Li Mingwu, chief ophthalmologist of People's Hospital of Peking University, explained the relationship between color and the eyes, and that color is the most important element of eye viewing. The human eye has high sensitivity to color, and good colors can be viewed by people. Produce positive guidance.
The professional evaluation of the experts also inspired the people in the industry to look forward to the visual feast of the wide color gamut. It can be foreseen that TVs certified by the wide color gamut will surely make the early adopters enjoy themselves at the upcoming May 1st sales peak.
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DWDM - Dense WaveLength Division Multiplex

DWDM (Dense Wavelength Division Multiplexing) is the ability to combine a group of optical wavelengths with a single optical fiber for transmission. This is a laser technology used to increase bandwidth on existing fiber optic backbone networks. More precisely, this technology multiplexes the tight spectral spacing of a single fiber carrier in a specified optical fiber in order to take advantage of the achievable transmission performance (for example, to minimize dispersion or attenuation). In this way, under a given information transmission capacity, the total number of optical fibers required can be reduced.

The relationship between the communication transmission network and the business has become increasingly complex under the situation of a substantial increase in business volume. The original TDM (optical fiber single-wave transmission and time division multiplexing) cannot meet the needs of new technologies. The highest rate of optical fiber single-wave transmission for commercial applications is 40Gbits/s, and it is expensive. TDM technology is difficult to adapt to complex networks and business relationships. The optical fiber multiwave transmission technology that uses pure optical devices for long-wave dispatch has broken the limit of the processing speed of electronic devices. Based on the SDH technology, the optical fiber transmission capacity has been greatly improved. The current commercial application rate of Dense Lightwave Multiplexing (DWDM) technology (DWDM) technology (also known as OTN technology) has reached 3.2 Tbits/s, which means that the communication network can be smoothly upgraded and evolved.
A key advantage of DWDM is that its protocol and transmission speed are irrelevant. The DWDM-based network can use IP, ATM, SONET/SDH, and Ethernet protocols to transmit data, and the processed data flow is between 100Mb/s and 2.5Gb/s. In this way, DWDM-based networks can transmit different types of data traffic at different speeds on a laser channel. From the point of view of QoS (Quality of Service), DWDM-based networks quickly respond to customer bandwidth requirements and protocol changes in a low-cost manner.

Dense Wdm,Dense Splitter,Dense Wdm Splitter

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