Point-to-point display, also known as 1:1 Map or Dot by Dot. It can be seen literally with a one-to-one correspondence. In essence, it represents a suitable match for both resolutions.
In general, the resolution of the imaging device of the display device is fixed, which we generally call "physical resolution." For example, a 65-inch interactive smart tablet with a physical resolution of 1920 x 1080 indicates that its imaging device has 1920 x 1080 pixels. Pixels are the basic unit of the image. Only when the resolution of the source is exactly the same as the physical resolution of the display, their pixels may have a one-to-one correspondence. In this case, we call it a point-to-point display. In this case, the image displayed on the screen is exactly matched with the source image. If the two cannot correspond one-to-one, the image will be blurred, just like the photo effect of shaking hands when taking pictures. We can simply understand that when a person looks in the mirror and shows the situation in a point-to-point manner, just like a smooth mirror with a smooth surface, we can see the high-fidelity mapping effect; in the case of non-point-to-point display, it is like a surface. There are worn lenticular lenses, and the people seen are distorted.
At present, the physical resolution of the common LCD screen of the interactive smart tablet is mainly 1920×1080. In practical applications, we often use the computer as the signal source of the interactive smart tablet, and put forward higher requirements for the point-to-point display. On the one hand, this depends on the quality of the display and the graphics card of the computer. On the other hand, the "level" of the LCD driver circuit plays a critical role when the "screen" of the display and graphics card is sufficient. In operation, the liquid crystal drives the electric field to change the state of the liquid crystal, and controls the amount of light penetration, and the voltage and the transmitted light are negatively correlated. Therefore, the liquid crystal drive plays a role of controlling the brightness of the light by the height of the voltage applied to the liquid crystal. To achieve point-to-point display, a high level of LCD panel driver is the premise and foundation. Therefore, brands such as Xiwo and other advanced LCD driver design levels can achieve true point-to-point display.
Another key technology is the way signals are transmitted. The traditional VGA belongs to analog signal transmission, and a conversion process is needed after the signal is transmitted. Just as the message propagation in the real world may cause information distortion, when the VGA interface transmits signals, the video signal will be greatly damaged and distorted. The resolution can only reach 1360×768, and the picture will give people a kind of “fog.†The feeling of flowers. HDMI high-definition digital signal interface is an interface that transmits audio and video digital signals at the same time. It does not need to undergo one conversion, and it does not need to undergo distortion during signal transmission. It brings life in vivid display and dynamic effects, making users feel like they are present. The situation.
Of course, to achieve the perfect point-to-point display is still a high technical requirements, there are very few brands that can achieve these technologies, such as Xiwo and other brands can now achieve 1080P point-to-point HD display, which is the interactive smart tablet industry as a whole In one direction of hard work.
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