Causes and solutions for LCD screen flower screen

    Some customers have reported that LCD screens occasionally flower screens during use, usually manifested as blurred images, stripes, color blocks, garbled characters, etc., which may involve hardware or software problems. The editor briefly introduces the causes and solutions here.

A. In terms of hardware, possible reasons include:

1. Poor contact between the interface or cable, such as the LCD cable and the motherboard connector plug interface is loose, oxidized or broken, or the LCD is poorly bound to the cable, and abnormalities occur after a period of use.

2. Faults in the LCD panel itself, such as aging of liquid crystal molecules, cracked glass, short circuit or open circuit of electrodes, may cause local color blocks or stripes.

3. Drive circuit problems, such as damage to the display driver chip of the motherboard, or bulging of capacitors, burning of resistors, etc., affect signal transmission; it may also be that the instantaneous current of the motherboard is too large, exceeding the power supply limit of the LCD screen, and burning through the ITO line of the LCD screen glass will also cause flower screens.

4. Temperature or voltage problems, such as high temperature causing changes in the performance of liquid crystal materials, or unstable voltage causing abnormal driving.

In terms of software, the possible reasons are:

1. The display driver is wrong or outdated, and the system cannot send the display signal correctly, resulting in a distorted screen.

2. System files are damaged, especially files related to graphics rendering, such as damaged DLL files related to Windows display drivers.

3. Hardware conflicts or resource allocation problems, such as conflicts between graphics cards and other devices, resulting in abnormal display signals.

4. Customers can also experience distorted screens if they replace the motherboard CPU or display with different models of driver ICs.

B, solutions, hardware:

1. For interface or cable problems, you may need to re-plug, clean the gold fingers, or replace the cable; or replace the matching connector.

2. If it is a panel failure, glass cracks, etc., professional repair or replacement of the panel may be required.

3. Driver circuit problems may require checking components on the motherboard, replacing damaged chips or capacitors, or detecting whether the power supply current meets the screen parameter requirements.

4. Voltage problems require checking the power adapter or battery.

Software,

1. Solutions include updating or reinstalling the driver, and using system restore or repair tools.

2. Check whether the motherboard CPU model and display driver IC model are consistent with the previously confirmed ones. If they are different, the corresponding code needs to be replaced.

     Generally, customers think that LCD screen flower screen is a hardware problem, but in fact, software driver problems may also cause it. Customers need to be guided to check step by step to find the problem. Shenzhen Hongjia Technology has been specializing in the production of 1.14-inch to 10.1-inch LCD screens and matching touch screens for 12 years, serving many Fortune 500 companies around the world. It has rich industry experience and engineers provide technical support throughout the process. Customers are welcome to email for consultation.