What do you usually think of when you think about affecting the performance of an LCD screen? One seemingly unimportant but important factor is the viewing Angle of the LCD display.
The viewing Angle range of the LCD screen refers to the Angle from which the customer observes the contents of the display screen in different directions and positions. When viewing beyond a certain range, color distortion or ghosting will occur.
Monochrome LCDS typically have viewing angles of 3, 6, 9 and 12. At present, monochromatic LCD screen is used at 6 and 12 points more, namely 6 points look up, 12 points look down. In terms of angles, 6 o 'clock or 12 o 'clock is the best point of view. For example, ordinary TN screen, although the perspective effect is not very good, but the advantage is cheap, many occasions are more appropriate.
The viewing Angle range of the LCD screen is as follows: TN: 30°; HTN: 45 °; The STN: 60 ° ~ 90 °; FSTN: 90 ° ~ 120 °.
In addition, LCD display effect is also related to contrast.
For any display, display is always number one! The realism, softness and saturation of the display effect will bring users the most intuitive visual experience. As for why contrast and perspective are classified as display effects, contrast is the gradient from dark to light on an LCD screen. The higher the ratio, the more gradations from dark to light, and therefore the richer the colors displayed.
Therefore, LCD display effect and Angle of view and contrast related. At the same time, in order to avoid the late voltage, polarizing batch, temperature change and backlight batch changes, the display effect will also appear deviation. Customers need to fine-tune the voltage to achieve the desired display effect. Contrast in COG cannot be adjusted externally, only by software. Then when the customer chooses the type, he needs to communicate with the customer and feedback the advantages and disadvantages. If you want to solve this problem more effectively, it is recommended that the client create a menu interface to adjust the contrast. This type of liquid crystal is usually used in a wide range of applications. Instrumentation, medical, aerospace, high-speed rail, etc.) .
The correlation between contrast and viewing Angle is related to the customer's overall application location and visual effect.