On the grand celebration of the 60th anniversary of the National Day, the huge display on both sides of the Monument to the People's Heroes left a deep memory. The reporter was informed yesterday that the two largest square display screens in the country, which were originally temporary facilities, will be transformed into fixed facilities, which will become an important landscape of Tiananmen Square, and the screen definition will be further enhanced.
The LED giant screen, which looks like a mirror, is actually composed of hundreds of thousands of LEDs, and the brightness and chromaticity are precisely controlled by the computer system to display the picture. During the National Day last year, Tiananmen Square temporarily set up four LED display screens for playing high-definition background images and live broadcasts of military parades, mass parades and National Day Gala. Since then, two smaller LED screens near Chang'an Street have been demolished, and two 250-square-meter giant screens in the center of the square have been preserved. The gorgeous and realistic images have attracted countless visitors to take photos.
Yesterday, the worker master was working in front of the LED display in Tiananmen Square.
The two screens were originally scheduled to be rented for three years, and every important holiday such as May Day and National Day was temporarily placed in Tiananmen Square. Due to the good playback effect and enriching the landscape of Tiananmen Square, the relevant departments decided to keep the giant screen as a fixed facility for a long time. The technicians involved in the installation and maintenance of the Tiananmen giant screen revealed. These days, the two giant screens have been encircled by the construction enclosure. The large crane will remove the old screen and replace the new screen with higher definition. Under the giant screen, the foundation will be installed to fix the foundation.
Compared with the familiar LCD screen, the LED display not only saves about 50% of power, but also produces a huge screen. At present, the world's leading LCD technology has a maximum screen size of 108 inches, which is equivalent to only 3.2 square meters. The huge display screen of Tiananmen Square is 50 meters long and 5 meters high. After replacing the new screen, the pixel pitch will be compressed from 16mm to 12mm, and the picture will be more vivid and vivid.
Although the ratio of the screen size of the two giant screens is very different from that of the ordinary display screen of 4:3 or 16:9, the played image is not deformed. According to reports, the screens played on the screen are specially produced high-definition video images, which is equivalent to the clarity of the film. The post-processing of the film source also considers the special playback requirements of the 10:1 aspect ratio. At the same time, the fully domesticized screen display technology has reached the international first-class level. The brightness and chromaticity of each luminous point can be adjusted by current adjustment, which not only completely eliminates the mosaic phenomenon, but also ensures that the entire display image is exquisite and natural.
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