1. Introduction of a wall-mounted LCD screen
Wall-mounted LCD screen refers to a kind of multimedia professional audio-visual system that releases business, financial and entertainment information through LCD terminal display equipment in public places. When it comes to the affecting factors of the display effect of the LCD screen, what do you usually think about? One of the seemingly unimportant factors is the viewing angle and the contrast ratio of the LCD display.
2. Factors affecting the display effect of the wall-mounted LCD screen
(1) Range of the viewing angle
The viewing angle range of the wall-mounted LCD screen refers to the angle at that customers observe the contents of the display screen from different directions and in different positions. When the viewing is beyond a certain range, color distortion or ghosting will occur.
The viewing angles of monochrome wall-mounted LCD screens are usually in the directions of 3 o’clock, 6 o’clock, 9 o’clock, and 12 o’clock. Currently, monochromatic wall-mounted LCD screens are mostly at 6 o’clock and 12 o’clock, that is, head up at 6 o’clock and head down at 12 o’clock. In terms of the degree of angle, the best optimal viewing angle is at the direction of 6 or 12 o’clock. Take an ordinary TN screen as an example, although the perspective effect is not quite good, the price is cheap, and it is suitable in many situations.
The viewing angle range of the wall-mounted LCD screen is listed as follows: TN: 30°; HTN: 45°; STN: 60°~90°; FSTN: 90°~120°.
(2) Contrast Ratio
For any display screen, the display effect always ranks first. It will bring users the most intuitive visual experience through a display effect of realness, softness, and saturation. The contrast ratio is the gradual change of the LCD screen from dark to light. The higher the ratio is, the more gradual change levels are from light to dark, and thus more colors will be displayed.
Therefore, the display effect of the wall-mounted LCD screen is related to the viewing angle and contrast. At the same time, in order to avoid changes in voltage, polarizer batches, temperature changes, and backlight batches in the later period, the display effect will also be biased. Customers need to fine-tune the voltage to achieve the desired display effect.
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