Liquid crystal display module manufacturers have designed many standard module products according to market demand to meet the needs of a broad customer base. How to choose a suitable LCD module according to the needs of developing products, here are some suggestions for reference.
1. Data to be considered in selection
To choose a suitable LCD module, the following three key indicators need to be considered first.
Display resolution: The number of pixels of the liquid crystal display module must be greater than the maximum number of pixels required for the product to display content.
Dimensions: The size of the liquid crystal display module must be adapted to the size of the product chassis.
Circuit coordination: The choice of liquid crystal display module circuit will be directly related to the circuit design of the MPU system. The circuit combination needs to compare the MPU system resources and module circuit characteristics, so as to make a comprehensive consideration.
2. Content-first approach
The content priority method is to select standard products with priority to meet the requirements of the display screen, and use the structure to balance. This method is used when the product chassis structure leaves a large selection space for the module, or the chassis can refer to the size layout of the module. This method will maximize the display effect.
3. Structure priority method
The structure priority method is to select standard module products based on the external structure size. This method is used when the product's chassis structure size has been fixed, and the choice of module size is almost small. This method will maximize the size of the structure.
4. Custom Modules
If there are special requirements for the display and structure of the liquid crystal display module, and the cost of mold opening can be afforded in terms of the cost of the whole machine, a customized module can be used. The advantages of custom modules are exclusivity, manufacturer protection and protection against product competition in the market, and optimized product structure. Custom modules are specially designed according to product characteristics and come in many forms. For example, customizing a dedicated liquid crystal display device, the special characters or symbols required for display are directly made on the liquid crystal display device.
For example, if you customize a special circuit board, after selecting the liquid crystal display device, according to the layout of the panel of the whole machine, the circuit board of the module is expanded into the panel control board of the whole machine, including the display circuit, the keyboard circuit, the indicator circuit and other input/output interfaces. and other functional circuits.
In general, customization can make the structure of the product the best, the most convenient for mass production, and can obtain the best application effect of the product and the highest performance-price ratio. Custom modules need to pay a certain mold opening fee, which is the manufacturer's investment to ensure the mold cost and design cost, and also reflects the user's confidence and reputation.
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