Lcd LCD display is a backlit display device, which emits light provided by the backlight behind the lcd LCD display module, which inevitably results in the LCD display positive viewing angle only having the best view angle. When you look at it from other angles, because the backlight can penetrate adjacent pixels and enter the human eye, it creates color distortion, the range of non-distortion is the perspective.
The perspective of the LCD display is also divided into horizontal and vertical perspectives, which are generally larger than the vertical angle of view. In life, whether you notice the lcd LCD screen or not, from a different point of view, there are different effects. From the middle of the LCD display, and the side view, the light intensity into the human eye is different, for the same picture, that is, there is light, there is dark situation, that is, the contrast is different.
Combined with the definition of perspective, the corresponding perspective of the LCD screen is perspective within the acceptable contrast range of the human eye. The viewing angle of the lcd LCD screen is a headache. When the backlight passes through polarizing, liquid crystal, and directional layers, the output light is directional.
In other words, most of the light is coming vertically from the screen, so when you look at the LCD display from a larger perspective, you can’t see the original color, or even all white or all black. Lcd LCD display on the market, as long as the horizontal viewing angle reaches 120 degrees, vertical viewing angle reaches 140 degrees, can meet the application needs of most users. The latest LCD screen using wide-angle technology, up to 140 degrees, about 150 degrees, reducing the LCD screen view too small inconvenience. Of course, this performance cannot be compared to a CRT display close to 180 degrees, but it is sufficient for most applications
Post time: Jun-19-2019