Five million LED to create the air monitor you seen it?

According to Nikkei technology online reports, located in Kanagawa, Yokohama, Japan, "DMM VR THEATER" theater will be opened in September 11, 2015. The theater is set up to allow virtual characters and objects as if the real presence on the stage of the "air display".

The theater uses the Perle illusion (Pepper''s ghost), to achieve the air display. The use of translucent optical thin film is tilted from the front stage to the audience, reflecting on the ground shows the character image, showing the character image true to life on the stage. Behind the stage is also set screen, projector projection image. Compared with the projector image, image display of the virtual ground than before, making the image more three-dimensional, real.

Air display with a translucent optical thin film is tilted from the stage to the audience present virtual image. A large LED display is arranged in front of the stage to reflect the image of the LED display to the optical film. The back of the stage is also equipped with a screen for projecting images. For example, the projection is equivalent to the virtual shadow image on the screen at the rear of the stage. The optical illusions are changed, the shadow will also change.

High precision LED display

In order to make the stage on the virtual image more bright and clear, the ground is set high fine LED large display.

LED monitor for the United States SiliconCore Technologies manufacturing. Pixel 3840*1440. RGB LED chip integrated in 1 SMD packages, made of LED, LED number and the number of pixels. It is characterized by the brightness of the LED display in the higher 2000cd/m2, LED configuration spacing is only 1.9mm. The company is proud to say, to be able to be such a brightness, about 1mm narrow spacing to configure only us".

Because the spacing is small, so it is not easy to feel the LED particles". In accordance with the present situation, the realization of 2000cd/m2 or more of the high brightness, spacing generally need to reach more than 3mm.

No register required

LED can be configured in a narrow pitch, because the use of a common cathode method to drive the LED chip. This method is to drive the RGB chip LED different power supply. RGB LED chip cathode sharing, so called common cathode.

Common LED display using RGB LED chip common anode common anode method. The same power supplied to the RGB LED chip. At this point, the red LED chip to reduce the voltage required by the external register (resistance). Because of the loss of power in the register and heat, so the common anode method is difficult to reduce the spacing to about 1mm.

The common cathode method does not need register, suitable for narrow spacing. Because there is no register, so the number of components is small, but also has the characteristics of easy miniaturization. Moreover, SiliconCore Technologies LED driver IC integration is high, the number of external components is also relatively small.

Through the narrow spacing of the LED configuration and reduce the number of components, the pixel up to 5 million 530 thousand of the LED display, the overall size of the control in the 7296mm * 2736mm. Can achieve brightness around 2000cd/m2. The actual operation will use 6 to 7 into, that is, from 1200 to 1400 cd/m2. Control the use of brightness can not only reduce power consumption, but also reduce the maintenance frequency, extend the life of the product.

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