Keeping your LCD screen pristine is essential for an optimal viewing experience. However, various issues can arise, affecting picture quality. Here’s a breakdown of 15 common LCD screen problems and some potential causes:
Display Issues
- Internal Pollution: Black spots, stains, or fibers trapped within the LCD.
- Internal Scratches: Black or white lines appearing due to scratches on the polarizer film (PI).
- Color Cast: Uneven color distribution, rainbow patterns, or color stripes caused by color filter inconsistencies.
- Inconsistent Background Color: Significant color variations between different LCD screens.
- Damaged Screen: Broken or chipped glass, corner damage, or conductive layer issues.
Manufacturing Defects
- Poor Glass Cutting: Uneven edges or protrusions on the glass due to imperfect cutting.
- PIN Scratches: Scratches on the conductive layer (PIN) leading to disconnection or conductivity problems.
Polarizer Film Problems
- Polarizer Scratches or Punctures: Mirror-like distortions or blurring caused by damage to the polarizer film.
- Polarizer Water Lines: Streaks appearing due to alcohol or acetone contamination during repair.
- Missing Protective Film: Torn or missing protective film on the polarizer surface.
- Polarizer Bubbles: Small bubbles trapped between the LCD and the polarizer film, affecting usability.
- Incorrect Polarizer Placement: The polarizer film is installed on the wrong side of the LCD.
Other Issues
- Convex Spots or Fibers: Dust or other foreign objects trapped on the LCD surface.
- Polarizer Corrosion: Chemical reactions causing discoloration or deformation of the polarizer film.
- Mixing of LCD Panels: Combining LCDs from different manufacturers or production periods with varying performance.
Maintaining a Healthy LCD Screen
By carefully handling your LCD screen and keeping it clean, you can minimize the occurrence of these problems. For professional repairs, consider trusted TV repair parts and bonding machines.
