A Comprehensive Guide to LED Display Quotations-1
In today’s digital age, LED displays are widely used in various scenarios, from commercial advertising to event venues, traffic signage to interior decoration. For American customers, a clear and reasonable quotation is of utmost importance when purchasing LED displays. The following will comprehensively analyze the quotation system of LED displays, covering each component and the underlying logic and considerations.
Core Components of the Display and Quotation Basics
1. Main Components
An LED display is mainly composed of three core components: the display panel, power supply, and control system. These three parts work in tandem to determine the performance, functionality, and visual effects of the display.
2. Auxiliary Parts
In addition to the core components, the auxiliary parts include the frame, various auxiliary materials, computer, software, debugging fees, and taxes. For outdoor display projects, it may also involve infrastructure construction, such as foundation suspension structures, as well as decorative edging and other work related to decoration.
Precise Considerations for LED Display Panel Quotations
1. Area Calculation and LED Module Conversion
The quotation for the display panel is usually based on the area, but it’s not a simple length – times – width calculation. Taking a common display module as an example, assume its length is 19.21 inches (converting 488 mm to inches, with 1 inch ≈ 25.4 mm). When a customer requires a display panel of approximately 6.56 feet × 4.92 feet (converting 2m × 1.5m to feet, with 1m ≈ 3.28 feet), since the modules cannot be used in non – whole – piece form, precise conversion is required. In the length direction, one module is about 1.6 feet. Four modules are less than 6.56 feet, and five modules reach about 8 feet. From the perspective of sales strategy and meeting customer needs, we can recommend a length dimension of around 7.87 feet, depending on the customer’s allowable size tolerance. The same principle applies to the height direction. Suppose the module height is 9.61 inches (converting 244 mm to inches). For a height requirement of 4.92 feet, after calculation, approximately six modules are needed for splicing, resulting in a height of about 4.8 feet. By calculating this way, we can determine the number of modules required for the display panel. For example, 4 modules in the length direction and 6 modules in the height direction, totaling 24 modules. When purchasing, the cost is determined based on the number of modules. When quoting to the customer, through accurate size calculation, the result is, for example, 5.91 feet × 4.59 feet, with a total area of approximately 27.13 square feet, thus determining a reasonable quotation for the display panel. This process requires careful adjustment according to the customer’s needs and the standard size of the modules to determine the most suitable size, which should be clearly marked on the quotation sheet.
2. Differences in Module and Cabinet Sizes
The sizes of different types of modules vary. For the unit cabinets of LED outdoor displays, due to waterproof requirements, the manufacturing process is different. The unit cabinets need to be potted. Since it is impossible to pot a large – area display panel on – site at the project location, they are made into independent square – shaped structures. During installation, the waterproof sealing of the gaps between the squares is done well. A common size for outdoor unit cabinets is, for example, 20.16 inches × 20.16 inches (converting 512 mm × 512 mm to inches). It should be noted that this size is set by each manufacturer independently and there is no unified standard. Therefore, during project implementation, adaptation and adjustment need to be made according to the manufacturer’s size, and this sizing adjustment process is crucial for the smooth progress of the project and accurate quotation.
Scientific Calculation and Quotation Basis for Power Supply Configuration
1. Matching Power Supply Power with Display Power
The configuration of the power supply requires precise calculation. First, we need to clarify the rated power of the purchased power supply, with common specifications such as 150W, 100W, or 200W. Then, determine the number of power supplies required based on the total power of the display panel. The calculation method for the total power of the display panel is relatively complex. Briefly, we need to remember the approximate power value per square foot for different specifications and sizes of display panels. Taking a certain type of display panel as an example, the power per square foot is approximately 18.58W (assuming 200W per square meter is converted to per square foot, with 1 square meter ≈ 10.76 square feet). The peak power can reach 37.16W. During normal operation, since not all light – emitting diodes are fully lit in the actual display content (such as common display modes like black background with red characters or black background with green characters), the estimated power is approximately 18.58W. Therefore, when designing the power supply configuration, if we want to control costs, we can plan according to 50% – 60% of the total power, that is, configure the power supply according to a power standard of approximately 9.29 – 11.15W per square foot. At the same time, considering that the actual output power of the purchased power supply may deviate from the nominal value, it is recommended to configure according to the rated power of the power supply.
2. Considering the Relationship between Display Type and Power Supply Configuration
When actually configuring the power supply, we need to comprehensively consider whether the display is an asynchronous or synchronous type. Asynchronous displays usually have fewer lighting situations and lower power consumption; synchronous displays may be fully lit, and their power is closer to the maximum power. In addition, we also need to combine the specific power specifications of the purchased power supply, such as 100W, 200W, etc., to finally determine the number of power supplies to be configured. For example, if a certain display panel has a power of approximately 37.16W per square foot, that is, approximately two 100W power supplies (or one 200W power supply) need to be configured per square foot. If a customer purchases a 100 – square – foot display panel, then approximately 200 100W power supplies (or 100 200W power supplies) need to be configured. This is a rough estimation method. For more accurate calculations, professional tutorials can be referred to, or professional technicians can be invited to calculate the power supply configuration standard for a specific specification of the display panel at one time, for subsequent projects to refer to.
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