75-inch LG original 4K screen: dual system function analysis of horizontal inquiry machine display screen (infrared/capacitive ten-point touch)
A, horizontal inquiry machine display screen 75-inch LG original 4K screen: visual experience and display advantages
Screen core parameters and image quality performance: the display screen of horizontal inquiry machine is equipped with 75-inch LG original LED screen, with physical resolution of 3840*2160(4K Ultra HD), display ratio of 16:9, and point distance of 0.1432(W)*0.4295(H).
The display screen of horizontal inquiry machine can accurately present the details of the picture-whether it is to show the government service flow chart, the brand promotion video of shopping malls, or the combination of brightness of 350cd/㎡ and contrast of 3000:1 makes the picture darker in black and purer in white, makes the LOGO more prominent when playing advertisements with dark background, and makes the material texture (such as metallic luster and fabric grain) more realistic when showing the physical picture of the product.
16.7M color display ability, horizontal inquiry machine display screen can cover a wide color gamut, avoid color cast, and adapt to scenes that require high color accuracy such as advertising design and multimedia teaching.
Full-view technology of display screen of horizontal inquiry machine and scene adaptation: Full-view display technology is adopted, and there is no distortion when viewing from 178 ultra-wide angle, which solves the problem of "the picture is white when people inquire at the same time"-for example, when many customers in a shopping mall know about promotional activities around the inquiry machine and many people in a hotel lobby check room information, the brightness and color of the display screen of horizontal inquiry machine are consistent from the front or the side (≤ 85 deviation angle).
At the same time, the screen response time is only 6ms, and there is no drag and jam when playing dynamic videos (such as scenic spots and corporate image videos), and the fast-moving pictures (such as people walking and vehicles driving) are still smooth, improving visual comfort.
B, infrared/capacitive ten-point touch: interactive experience and technical characteristics of horizontal inquiry machine display screen
Optional and operational advantages of dual-touch technology for horizontal inquiry machine display screen: it supports two schemes: ten-point infrared touch and ten-point capacitive touch to meet the needs of different scenes.
The infrared touch resolution of the display screen of the horizontal inquiry machine reaches 4096*4096P, and the light transmittance is ≥98%.
It can respond with a touch of a finger, and the life of a single touch is as high as 50 million times, which is suitable for high-frequency use scenes (such as government affairs halls and airport inquiry offices).
Capacitive touch has higher sensitivity, and supports multi-point gesture operations (such as zooming pictures with two fingers, sliding to switch pages).
Two people can operate on the screen at the same time (such as jointly viewing the floor map of the shopping mall and collaboratively marking files) to adapt to interactive scenes (such as education and teaching, corporate meetings).
Touch stability and environmental adaptation of horizontal inquiry machine display screen: both touch technologies have anti-interference characteristics-infrared touch adopts the principle of optical positioning and is not affected by environmental light (strong light and weak light), and the touch accuracy remains stable even under the skylight of shopping malls or under the night lighting environment.
Capacitive touch control adopts anti-misoperation algorithm, which can filter the interference such as palm misoperation and water droplet splashing and avoid operational errors.
There is no delay in touch response, and it takes only 0.1 second from finger touching the screen to system feedback, so users don't have to wait, and the operation experience is close to that of smart phones, which reduces the use threshold for non-computer users.
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