Hangzhou Xuhong Technology Co.,Ltd
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Chinese name of PCB (printed circuit board) is integrated circuit board. PCB is composed of insulating baseboard, connecting wire and various solder pads. Its main function is to make electrical interconnection between various circuit components, with the dual role of conductive circuit and insulating baseboard. PCB is also widely used in LCD modules. How to use PCB board to make it better serve the LCD module? Here we will mention the function expansion of PCB circuit board.
Several interfaces on PCB:
For an LCD module with touch function, it will have multiple interfaces. We can merge multiple interfaces, such as LCD screen and CTP interfaces, which can save a connector location, it is a good solution for the compact motherboard structure. At the same time, assembly becomes much easier. Of course, LCD and CTP had better not share the same VDD (power side), which will cause a certain degree of power interference. That's what we need to come up with. Of course, you can also put the backlight signal, LCD signal, RTP signal, CTP signal are integrated on a TCON PCB, as long as you need.
Signal conversion on PCB:
When you are looking for a 4.3 inch LCD screen with 480x272 resolution, the mainstream product on the market will be RGB interface, and your motherboard can only support MCU interface, this is really a headache. It doesn't matter, our company can provide signal conversion solutions, can turn RGB into MCU interface. Similarly, for screens with other sizes, when the original interfaces do not perfectly match your motherboard, we will use signal conversion to meet your needs. It is worth mentioning that in order to make it more stable, we usually put the conversion circuit on the PCB board, which will increase the overall thickness of the product, and you need to evaluate the size of the mechanical structure in advance.
PCB positioning column:
Some LCD modules need to meet certain seismic resistance requirements. In order to fix the display screen properly, beside using double-sided tape, screw fixation is also a very safe solution. For the LCD display product with PCB, we can increase the size of PCB on the outside of LCD module when designing PCB, and increase different types of screw holes to fit different screws. When installing, customers only need to fix our LCD module by screws. Some positioning holes can also be derived on the backlight rubber shell and iron frame to facilitate screw fixation.
