With the continuous development of display technology, automotive LCD is favored by more and more industrial terminals. Many industrial terminals will have many questions when purchasing LCD liquid crystal displays. How to check if an automotive LCD is qualified? What are the undesirable phenomena of automotive LCDs? Dongfa, as a China auto parts manufacturer, comes to science today.
1. Bright spots, color spots, dark spots
Bright spots, color spots, and dark spots generally refer to abnormally small color spots that appear black or white on an automotive LCD. Generally, it is caused by the collision of automotive LCDs. This kind of damage cannot be repaired. Generally, there are requirements for how many inches of the screen can be obtained.
2. Foreign objects and stains on automotive LCD
The display of foreign objects and stains on the LCD is a bad appearance, but it will not affect the display function. However, when the rest of the screen looks uncomfortable, this is also one of the bad phenomena of the LCD. A similar bad appearance can be cleaned by rework.
3. Uneven color
The uneven color of automotive LCDs is generally caused by the backlight. The uneven color is generally reflected in the whitening or yellowing of some parts. Generally, the backlight needs to be adjusted, or the color is uneven due to the long storage time and aging of the backlight. In this case, the backlight needs to be replaced directly.
4. Liquid crystal display light leakage
Automotive LCD light leakage is generally visible to the naked eye, and light leakage is also a common undesirable phenomenon, which is of poor function and cannot be shipped directly. The light leakage phenomenon of the LCD screen is mainly caused by the pressure on the border of the LCD screen during the assembly process, which is manifested as the halo around or in the corners, but this kind of light leakage phenomenon cannot be found in general use, and the detection screen must be displayed in a completely dark environment. See.
5. Scratches on automotive LCD
Scratches on the LCD screen are poor in appearance and will not directly affect the display effect, but will affect the display effect. Generally, scratches on the LCD screen cannot be shipped directly, but the polarizer can be replaced for rework. Generally, the polarizer can be scratched, and it may also be caused during the production process.
6. Huaping and black screen
A brick or black LCD screen is a functional problem and cannot be shipped. However, the phenomenon of the blurred screen and black screen generally needs to be analyzed to analyze whether it is due to improper operation or production process, or the LCD screen is directly broken, and it is directly scrapped and cannot be used again.
In the production of LCD screens, due to a large number of raw materials and complex processes, some undesirable phenomena in the production process are normal, but professional LCD screen manufacturers can reduce the probability of occurrence through raw material control and quality inspection, thereby improving product quality. quality.