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Five "tight hoops" of 3D TV in the United States and Japan

Time of issue : 2020-12-23

On January 1 this year, China's first 3D TV channel, China's 3D experimental channel, began trial broadcasting. However, the rapid development of 3D TV is still restricted by the content, transmission technology, reception technology, consumer interest and price factors. At present, the development of 3D TV in the United States, Japan and other countries is not ideal. In China, 3D TV is the future development trend, but there is still a long way to go.

Application of 3D display and micro projection technology in mobile phone

Time of issue : 2020-12-23

Display effect is the facade of mobile phones and other portable devices. It will have a direct impact on the communication between users and the digital world, and even determine the purchase intention of consumers. This is also why touch display technology will promote the sales of iPhones, and even cottage mobile phone manufacturers will try their best to tilt the limited cost to display devices. In addition to the basic requirements of energy consumption, reliability, withstand voltage and display quality, for smart phones, consumers have higher and higher requirements for more real and interesting display experience. These requirements promote the application of 3D display and micro projection technology in mobile phones. The former can bring more real experience for consumers, while the latter can solve the problem that the display screen of mobile phone is too small, and also can derive a lot of interesting and practical applications. At the 4th mobile handheld display technology conference held at the same time of the portable product innovation technology exhibition, Dr. Xu Liangfeng, director of Asia innovation system engineering of Nokia Beijing Research Institute, systematically expounded his views on the application of 3D display and micro projection technology in mobile phones, as well as Nokia's latest research progress in related fields.

Adding TC layer to solve the problem of limited viewing angle and damaged resolution of 3D display

The current three-dimensional display technology can be divided into four categories: stereoscopic glasses, automatic stereoscopic display, holography and three-dimensional display. The first two of them use parallax to give people 3D images The sense of display enables the left and right eyes of the observer to see images with parallax, thus deceiving the brain and making people feel 3D; holography does not use digital means, but the interference and diffraction of light waves. It can only generate static 3D optical scenes, and it also requires the viewing angle. The amount of 3D image information formed by holography is very large, so it is suitable for mobile phones and other tapes For the application of mobile devices with limited width, 3D display using holographic technology is not suitable; at present, volume 3D display technology can be roughly divided into scanning volume display and solid-state display. Due to the constraints of reliability and performance, volume 3D display technology has not yet reached the stage of large-scale commercial use.

Comparatively speaking, the most widely used three-dimensional technology is the former two so-called "pseudo three-dimensional" technology. The first technology is the technology used in 3D movies such as avatar. In this kind of application, the observer wears special glasses and coordinates with the image on the screen through the glasses grating to produce a three-dimensional effect. In mobile phones and other portable applications, it is not convenient to wear glasses, so the grating is placed on the display screen, which is the so-called automatic split stereoscopic display technology. Comprehensive comparison shows that this technology is the most realistic choice of 3D display technology in mobile phone applications.

Nintendo, LG and HTC have all launched products with automatic split stereoscopic display technology, namely naked eye 3D display application, but there are also some problems that seriously affect the user experience. For example, you must be in front of the display screen at a certain optimal angle to view the 3D display effect. If you move the position slightly, it will be seriously affected. However, in mobile applications, on the one hand, users are often in motion, and the content of other action games (such as racing) is constantly changing. If you have to enjoy 3D effects from a specific angle, it will obviously seriously affect the user's experience. Moreover, the abnormal frequent switching of 2D display effect and 3D display effect due to the perspective problem will even make consumers feel dizzy and other discomfort. In addition, the vast majority of such three-dimensional technology needs to halve the image resolution. Although the three-dimensional film like Avatar has adopted timing control technology to solve this problem, it still exists in many mobile terminal products. If we want to ensure the 3D effect of multi-user viewing, we will encounter more problems.

Xu Liangfeng said that his team has done some exploration to solve these problems. The solution is to place a transmission unit (TC) layer made of special liquid crystal between the backlight and LCD, or directly put it on the LCD. After adding electric field to the TC layer, according to the characteristics of the liquid crystal itself, the liquid crystal cells in the TC layer will be reordered, so as to realize this special grating which can be controlled by electricity. For example, if the electric field is n

Where is the business opportunity of IC design industry

Time of issue : 2020-12-23

IC design groups lack killer applications this year, and their performance is generally at a historical low. However, with the rise of Smart Handheld Devices and ultrabooks, wireless communication related IC such as WiFi, NFC, SSD, touch panel and other business opportunities will become the new Saviour of IC design industry.

TD-LTE baseband modem sc9610 released by Spreadtrum

Time of issue : 2020-12-23

As one of the leading core chip suppliers of 2G, 3G and 4G wireless communication terminals in China, Spreadtrum communications, Inc. recently released its first TD-LTE baseband modem sc9610. Based on 40 nm CMOS technology, sc9610 integrates multi-mode communication standards in a single chip, including multi band TD-LTE / TD-SCDMA and four band edge / GSM / GPRS. Sc9610 expands the product line of Spreadtrum to 4G standard. At present, it has provided customers with samples for evaluation of high-end smart phones and data cards.

Looking at the future development of TV technology from CES

Time of issue : 2020-12-23

The homogenization of the development of TV industry has become an indisputable reality. Originally, we thought that the industrial development in 2012 would not escape from the circle of 3D and intelligence, but ces2012 gave us a surprise: Intelligence no longer only focused on platform construction, but turned to manipulation experience; it giants entered into intelligent TV without being bound by tradition, and built a unique product system; it giants entered into intelligent TV without being bound by tradition; OLED is no longer in theory, and large-scale products can be mass produced; 1080p is no longer the highest configuration, and 4K resolution ultra-clear will play a big role in 2012. From ces2012, we can see the positive efforts of TV manufacturers, the bright sunshine of the TV industry, the continuous emergence of new products, new technologies and new ideas, and we will see the development of "them" in 2012.

Panasonic developed 3.5mm Ultra HD standard LCD screen

Time of issue : 2020-12-23

Recently, Panasonic of Japan announced that the company has successfully developed a 20.4-inch LCD screen with 4K x 2K resolution (3840 * 2160). Its body thickness is only 3.5mm, which is known as the smallest and Thinnest LCD screen in the world, and its resolution far exceeds 1080p Full HD standard.

It is noted that this LCD screen mainly uses IPS Pro wide view technology in the development of plasma TV screen, realizing the highest definition of 216 pixels per inch screen in the world.

At present, many panel manufacturers around the world have launched 4K × 2K LCD screens, but Panasonic is the first to make such a small screen with such a high resolution. Panasonic officials said that the screen will be promoted to home TVs and medical fields that need high-definition images.

It is understood that Panasonic has displayed the display at CES 2012 in Las Vegas.

In 2011, Huawei's terminal sales revenue exceeded US $6.7 billion

Time of issue : 2020-12-10

As of December 31, 2011, Huawei's global terminal sales revenue exceeded US $6.7 billion, a year-on-year increase of 50%. The delivery volume exceeded 150 million units, with a year-on-year growth of 30%. Among them, smart phones achieved a rapid growth year-on-year, with a delivery volume of more than 20 million units, exceeding the annual target.

In the process of promoting Huawei terminals to the "business to user (B2P)" market, Huawei has built a full range of high, medium and low-end mobile phones, enriched the product line layout, defined the target communication group of "dynamic community", and enhanced its brand influence on users through the brand characteristics of "friendly and pleasant, trustworthy, energetic and willing to innovate"; on the basis of deepening the channel of operators, Huawei has made great achievements, Try various channel forms such as socialization and e-commerce.

In 2011, Huawei's terminals made frequent attacks in overseas markets. Ideos X5 appeared in the US consumer electronics show in January, and Ideos X3 and mobile wifi series appeared in Barcelona world mobile communication conference in February. In April, the concept mobile phone "folding leaf" caught a glimpse at the international furniture exhibition in Milan, Italy. In September, the German Ideos X3 sold nearly 40000 units in two hours. In the third quarter, the customized children's machine was successfully launched in Japan.

In the Chinese market, in early 2011, Huawei's terminal smart phones won the favor of many Chinese consumers from c8500, which sold millions in a hundred days, to c8650, which sold millions in 60 days, and then to t8300 and mobile wifi. With the advent of vision, glory and mediapad, a new chapter has been opened.

Four national standards including electric vehicle charging interface were officially released

Time of issue : 2020-12-23

The reporter learned from the Ministry of industry and information technology last week that four national standards, including electric vehicle charging interface, have been approved and issued by the "national standard announcement of the people's Republic of China No. 21, 2012" a few days ago, and will be implemented from March 1, 2012.

They are: connecting devices for conductive charging of electric vehicles Part 1: General requirements; connecting devices for conductive charging of electric vehicles Part 2: AC charging interface; connecting devices for conductive charging of electric vehicles Part 3: DC charging interface; and communication protocol between off board conductive charger and battery management system of electric vehicles.

Four national standards including electric vehicle charging interface were officially released

Time of issue : 2020-12-10

The reporter learned from the Ministry of industry and information technology last week that four national standards, including electric vehicle charging interface, have been approved and issued by the "national standard announcement of the people's Republic of China No. 21, 2012" a few days ago, and will be implemented from March 1, 2012.

They are: connecting devices for conductive charging of electric vehicles Part 1: General requirements; connecting devices for conductive charging of electric vehicles Part 2: AC charging interface; connecting devices for conductive charging of electric vehicles Part 3: DC charging interface; and communication protocol between off board conductive charger and battery management system of electric vehicles.

Relevant experts said that the release and implementation of the four national standards of electric vehicle charging interface and communication protocol will provide important technical and standard support for the construction of electric vehicle infrastructure, which is of great significance to improve China's new energy vehicle standard system, promote the demonstration pilot of new energy vehicles, and promote the coordinated development of China's new energy vehicles.

After the Ministry of industry and information technology issued four national standards, such as electric vehicle charging interface, the State Grid Corporation of China (SGCC) released on its official website in-depth regulations covering the engineering design contents of three types of electric vehicle battery charging and replacement power stations, including battery replacement station, battery distribution center and battery distribution station.

State Grid said that the release and application of in-depth regulations on three types of engineering design content is conducive to the construction of lean, standardized and standardized electric vehicle intelligent charging and swapping network, and is conducive to promoting the development of electric vehicle industry.

According to a source, the State Grid Company plans to invest more than 20 billion yuan in the development of electric vehicle charging facilities during the 12th Five Year Plan period.

Facilities construction standards first

According to the State Grid Company, the in-depth regulations cover three types of electric vehicle battery charging and replacement power station projects, including battery replacement station, battery distribution center and battery distribution station, and standardize the design and construction requirements of process flow, equipment selection, plane layout and monitoring system for battery charging, transfer and replacement of different projects.

On December 27, the Ministry of industry and information technology (MIIT) just released four national standards, including "connection devices for conductive charging of electric vehicles Part 1: General requirements" and Part 2 (AC charging interface), which are required to be implemented from March 1, 2012.

However, there is still a debate about whether the charging mode of electric vehicles is charging or changing. Some analysts pointed out that the current electric vehicle industry is facing two development bottlenecks: the sales of "complete vehicle with battery" of electric vehicles will increase the price of complete vehicle due to the high price of battery, which will affect the sales; the investment per unit area of traditional charging infrastructure is expensive, which is difficult to sustain the development, which will affect the popularity of electric vehicles.

State Grid Corporation of China (SGCC) pointed out that compared with the cost, charging efficiency, battery maintenance and circulation management, and the impact on the grid and users, the comprehensive performance of the fast switching mode is the best. Therefore, Liu Zhenya, general manager of State Grid Corporation of China, set the basic adjustment of charging facilities at the 2011 work conference. The basic business model of State Grid electric vehicle charging and swapping station is determined to be mainly power exchange, supplemented by plug-in, centralized charging and unified distribution.

This time, the design content of electric vehicle charging and swapping power station project released by state grid also mainly serves the swapping mode. According to the introduction of State Grid, the battery replacement station, battery distribution center and battery distribution station constitute the service network for efficient and fast power supplement of electric vehicles. The standardized design and construction of the three projects will reasonably solve the problems that the current battery technology does not support fast charging, the development of the electric vehicle industry is limited due to the imperfect service network, and the distribution network can not withstand large-scale random charging, The reasonable development mode of electric vehicle charging and

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