TCL LCD TV flower screen does not display the image of the reason, the solution
1. If it is a flower screen caused by the confusion of the screen color display, it can generally be judged as the failure of the LCD screen itself; Since the image on the LCD screen must have backlight and circuitry, it is possible to change the orientation of the LCD display, so the circuit manipulates the three color pixels of the LCD RGB separately. Once it fails, it will cause color or flower screen. 2, the resolution of the LCD screen is generally not lower than the CRT display, if it exceeds the best resolution of the manufacturer, there may be a flower screen.
As follows:
1. If the graphics card is overclocked too much, there will generally be irregular, intermittent stripes, at this time to reduce the overclocking amplitude, note, to reduce the frequency of the video memory first.
2. Start the observation, found that the fault is different from the horizontal line of the screen or the vertical line of the screen, but the color is not normal, according to the principle of shortcuts, first use the digital board to replace the test machine, the result is still in the fault, suspect that the LCD screen itself has a problem. So the digital version of the faulty machine was replaced by another good machine testing machine, and the resulting image was normal. There is a problem with the screen of the faulty machine. Because the LCD screen displays the image, there is not only a backlight, but also a circuit that can change the direction of the liquid crystal arrangement. He controls the LCD RGB tri-color pixels, and if the control part fails, it will cause color or flower screen.