（#TV #Quality #LCD #OLED）TV Quality Comparison: How to Avoid Getting a Defective Unit
Yeah. It's Cute. But that's not the main point here. Take a look at this image. It's a screenshot of a TV screen. There are four shots in total. This image shows the screen of a Sony Bravia TV. In every scene, there are four thin black lines. This is a malfunction. Defect in the LCD panel itself (driver IC) This is due to aging or malfunction of the circuitry that sends images to the screen or the panel itself. If straight lines appear vertically or horizontally in single-pixel increments, this is the most likely cause. If there are straight, parallel lines running horizontally, one pixel at a time, it is extremely likely that there is a “defect in the LCD panel (source/gate driver)” or a “failure of the T-Con board (video control board)” inside the TV. When the video signal or voltage fails to be transmitted normally to a specific row (line), the pixels in that column do not light up, resulting in a black horizontal line. Physical ...