Dacă luminozitatea afișajului LCD este determinată de sursa de iluminare de fundal:
As we all know, LCD displays present images through a special backlight source, and the performance of the backlight source also has an important impact on the brightness of the display, so the brightness of the LCD display depends only on the backlight source.
Ecran LCD
After the backlight emits light, the light is controlled by the voltage of the front LCD display panel, and the liquid crystal molecules allow the light to pass through or mask to display the brightness of the image. This process is controlled by an IC chip, which is similar in principle to a shutter in a camera and can control the luminous flux. Camera products are usually equipped with a shutter on the back of the lens, and the shutter is opened when shooting, allowing the object to be imaged in the film or photosensitive element to form a photo. In addition, the liquid crystal panel emits light with balanced brightness from a backlight, which is blocked/controlled by the light of the liquid crystal panel, and is imaged by the light and shadow of the light.
When you watch an image on an LCD monitor or LCD TV, you will find that the light passing through the LCD panel not only appears in the form of name and darkness, but also has various colors from light to dark. In addition, when we continuously watch an animation, the standard is that we need 60 pictures per second, that is, the light and dark state is switched 60 times per second. In order to display the pictures accurately, there must be enough pixels. The structure of the liquid crystal panel should also be fine enough. From this perspective, high-end LCD panels and low-end products will be different in this respect, which is also one of the reasons for the cost difference.
LCD monitors can use voltage to control light intensity at high speed, but since the LCD panel can only control light and shadow, this mechanism is only effective for black and white pictures. If you want to display a color picture, you also need to place a color filter in front of the liquid crystal molecule layer to add color to the bright light and dark light. Therefore, in addition to the brightness of the backlight itself, the control of the liquid crystal molecules by the IC chip (operation on/off), the quality of the liquid crystal panel itself, the aperture ratio and the light transmittance, etc., will all have a certain impact on the brightness of the liquid crystal display.
Conținutul de mai sus este o introducere pentru a afla dacă luminozitatea afișajului LCD este determinată de sursa de iluminare de fundal. Ecranul LCD are foarte puține radiații către corpul uman, iar ecranul este moale și nu rănește ochii. Ne poate proteja vederea. Corpul este subțire și salvează. În comparație cu afișajul CRT mai voluminos, afișajul LCD are nevoie doar de o -treime din spațiul precedentului. De asemenea, economisește energie electrică și nu generează temperaturi ridicate. Este un produs cu putere redusă-. Dacă există praf pe panoul de afișare LCD, trebuie să operați sub sfatul personalului profesionist de întreținere. Nu găsiți doar o cârpă sau un lucru dur pentru a-l șterge. Operarea necorespunzătoare poate deteriora cu ușurință afișajul și poate cauza deteriorarea panoului afișajului LCD. .
