During daily business negotiations on LCD displays, many parameter issues are involved, one of which seems to be not the key but very important, is the LCD display viewing angle.
The viewing angle range of the LCD display screen refers to the angle at which customers observe the content displayed on the screen from different directions.
Watching beyond a certain range will cause color distortion or ghosting.
The viewing angle of the monochrome LCD screen is usually 3, 6, 9 and 12 points. At present, the monochrome LCD screens are mostly used at 6 and 12 points, that is, look up at 6 points and look down at 12 points. Calculated by angle, there is an optimal visual angle at 6 o'clock or 12 o'clock. For example, the common TN screen, although the viewing angle is not particularly good, but it is cheaper, more suitable for many occasions.
The viewing angle range of the LCD screen of the following materials:
TN: 30 degrees; HTN: 45 degrees; STN: 60 degrees to 90 degrees; FSTN: 90 degrees to 120 degrees.
The display effect of the liquid crystal display is also related to the contrast.
For any display screen, the display effect is always the first place! The realism, softness and saturation of the display effect display, bringing users the most intuitive visual experience! As for why the contrast and viewing angle are attributed to the display effect,
Contrast is a gradual level of liquid crystal display from dark to light. The larger the ratio, the more gradation levels from dark to light, and thus the richer the color display.
Therefore, the display effect of the LCD screen is related to the viewing angle and contrast. At the same time, in order to avoid the voltage, the batch of polarizers, the temperature change and the different shades of the backlight batch that are encountered in the later period, the display effect will also be deviated. The customer needs to fine-tune the voltage to achieve the desired display effect. It is not possible to adjust the contrast outside the COG LCD, it is adjusted through software. When choosing a model, it is necessary to communicate the pros and cons to the customer. If you want to solve this phenomenon more effectively, it is recommended that the customer make a menu interface to adjust the contrast. This type of liquid crystal is usually used in a wide range of applications, such as instrumentation and medical treatment, aerospace, high-speed rail, etc.
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