What are the precautions for LCD display screens in outdoor applications?

The maintenance of outdoor TFT mobile phone LCD screens'>mobile phone LCD screens is very troublesome, but as long as the cleaning skills are carefully summed up, the maintenance of outdoor LCD screens will become very easy. In general, users should use cotton cloth to wipe the outdoor large-screen LCD screen with water, and do not use any detergent, otherwise, the shell will lose its unique luster when it leaves the factory. 1. Protective film treatment Paste a protective film on the surface of the finished module to prevent the display surface from being polluted during the assembly process. Therefore, it must not be removed before the complete machine assembly is completed, so as not to stain or damage the display surface. 2. A backing plate of about 0.1mm should be added between the padded module and the front panel, and the panel should also be kept flat to avoid deformation after assembly. 3. Strictly prevent static electricity The control and drive circuit in the module is a low-voltage, low-power CMOS circuit, which is easily broken down by static electricity and is an irreparable damage, so it is necessary to pay attention to it. Therefore, extra care should be taken during operation, assembly and use to prevent static electricity. For this purpose: 1. Do not touch the external leads, circuits and ICs on the circuit board with your hands; 2. The soldering iron used for soldering must be well grounded and free from leakage. 3. If direct contact is required, the human body and the module should be well grounded, or the metal frame of the faucet or the operating platform should be touched by hand to discharge. 4. Precautions for assembly operation 1. The liquid crystal display module has been carefully designed and assembled. Do not process or trim by yourself; 2. The claws of the metal frame shall not be distorted or disassembled at will; the shape, assembly holes, circuits and parts of the printed circuit board shall not be modified or processed at will; the conductive adhesive strip shall not be modified at will; any inner bracket shall not be modified; , drop, bend, distort the module and backlight parts, etc.; 5. Use and maintenance of the module 1. The external leads of the LCD screenmodule cannot be connected incorrectly, otherwise it will cause overcurrent, overvoltage and other damage to the components of the liquid crystal display module; 2. When the module is connected to and disconnected from the power supply, the signal level can only be input after the positive power supply (5±0.25V) is stably connected. If the input signal level is before the power supply stabilizes or after it is disconnected, it may damage the IC and other circuits in the module. 3. The contrast and viewing angle of the dot-matrix mobile phone LCD screenmodule are closely related to the temperature and driving voltage, so if the adjustment is too large, it will not only affect the display effect, but also shorten the service life of the module. 4. When the module is used below the specified operating temperature range, the display responds very slowly. When the module is used above the specified operating temperature range, the entire display surface will display the complete display status. This phenomenon is not that the module is damaged, it just returns to the specified temperature range, and everything will return to normal. (Do not use or store outside the storage limit temperature. If the temperature is lower than the crystallization temperature, the mobile LCD screen will crystallize, destroy the alignment layer, and make the device invalid; if the temperature is too high, the liquid crystal will become an isotropic liquid and lose its liquid crystal state , lose the function of the liquid crystal device.) 5. Press hard on the display part to produce abnormal display. At this time, cut off the power, wait for a while, and then turn on the power again, and then it will return to normal. 6. Do not bump the IC on the PCB on the back of the module to prevent adjacent pins from short-circuiting. 7. When there are water droplets on the screen, wipe them off quickly: long-term contact with water droplets will cause discoloration or spots on the screen. LCD Display LCD for Samsung Display Manufacturer'>OLED Display Manufacturer TFT LCD Display

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