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How to choose the suitable size and resolution bar led sign for your shop?

2025-07-17

In recent years, Led Display products have been rapidly popularized and applied, andled sign boards have become a tool for stores to attract customers. So how to choose an led signs for businesssuitable for your own store? Selecting the right size and resolution for an outdoor doorhead screen requires comprehensive consideration of factors such as the installation environment, viewing distance, content needs, and budget. The following is a detailed decision-making framework and practical suggestions prepared by TENSHANG for you: 

1. Determine the installation location and space constraints

Width and height: Determine the screen size according to the actual available area of the store's doorhead (for example, common horizontal screens have a width of 3-8 meters and a height of 0.5-1.5 meters; vertical screens have a width of 0.8-1.2 meters and a height of 2-4 meters).

◊ Installation methods:

 • Embedded type: The screen is flush with the doorhead frame, and heat dissipation space needs to be reserved, which is suitable for stores pursuing an integrated design.

 • Hanging type: Fixed above the doorhead through brackets, attention should be paid to load-bearing safety, which is suitable for places with high floor height.

 • Special-shaped screen: Such as arc-shaped, circular, etc., which need customized design, suitable for brand image stores or scenes that need to highlight creativity.

2. Environmental lighting conditions

Strong light areas (such as street-front without shelter, sunny side): Priority should be given to high-brightness LED screens (brightness ≥ 5000cd/m²) to avoid blurred images caused by direct sunlight.

◊ Semi-shady or indoor-outdoor transition areas: Low-brightness LED screens (brightness 3000-3500cd/m²) can be considered to reduce power consumption and costs. 

3. Choose resolution according to viewing distance

Resolution (pixel density) directly affects the clarity of the picture and needs to be calculated based on the optimal viewing distance between the audience and the screen:

◊ Core formula: Optimal viewing distance (meters) ≈ pixel pitch (mm) × 3

 • Pixel pitch: The distance between the centers of adjacent LED beads on the LED screen. The smaller the value, the higher the resolution (such as P2.5, P3, P5, etc.).

◊Balance between resolution and cost

• High resolution (such as P2.5-P4): Suitable for close viewing, with delicate pictures (such as displaying product details, high-definition posters), but the cost is higher (the price per square meter is 30%-50% higher than that of P10).

• Low resolution (such as P6-P10): Suitable for long-distance viewing, with high cost performance, but there may be a grainy feeling when playing text or small-sized pictures.

4. Content type and display needs

◊ Video vs. graphics and text as the main content

• Mostly video / dynamic content: Higher resolution (such as P4 and below) is required to avoid blurring of dynamic pictures; it is recommended to use a 16:9 widescreen ratio (such as 1920×1080) to adapt to mainstream video formats.

• Mostly graphics / subtitles: The resolution requirement can be reduced (such as P5-P8), and priority should be given to ensuring that the text size is clear (the height of a single character is ≥ 20 pixels).

◊ Optimization of text readability

• Font size calculation: Viewing distance (meters) × 3 = character height (cm). For example, to see the text clearly from 10 meters away, the character height must be ≥ 30 cm (corresponding to about 150 pixels in height on the screen).

• Avoid content clutter: When the resolution is limited, reduce complex patterns and give priority to highlighting core information (such as promotional numbers, brand logos).

5. Budget and long-term maintenance costs

◊ Initial cost composition

• Size impact: For each additional 1 square meter in area, the cost of the LED screen increases by 2000-5000 yuan (depending on the pixel pitch).

• Resolution premium: The unit price of P2.5 screens is about 50% higher than that of P10 screens.

◊Long-term use cost

• Energy efficiency: High-resolution LED screens (such as P2.5) have higher power consumption (about 800W/㎡), while low-resolution screens (such as P10) have a power consumption of about 300W/㎡

• Maintenance cost: Small-pitch screens (such as P2.5) are more difficult to repair; large-pitch screens (such as P10) are easier to maintain, with costs 30% lower.

In conclusion, you can choose a suitable customized size according to your budget and actual situation. If you find the calculation too complicated, don't worry. As an LED display manufacturer with rich experience, TENSHANG has extensive experience in recommending the most cost-effective LED display products to customers. Just tell our sales staff the size you need and the usage scenario, and we will recommend the most cost-effective product for you. Contact TENSHANG for a quotation!

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GOB (Chip-on-Board) and SMD (Surface Mount Device), In the landscape of LED display technologies, COB (Chip-on-Board) and SMD (Surface Mount Device) are well - known, but GOB (Globally Organic Bonding) LED panels have emerged as a superior option, especially for LED poster screens.
GOB utilizes a specialized optical and heat-conductive nanoscale encapsulation material, which fills the gaps between LED beads on the PCB board of conventional LED displays. This process significantly enhances the stability of the LED beads. As a result, GOB displays effectively address the common issues of LED displays, such as dead pixels and falling beads, ensuring a more consistent and reliable visual performance.
Moisture-proof: The GOB LED display is made of three-dimensional coating and comprehensive protection, with a smooth and seamless surface, effectively blocking the contact between electronic components and humid air, thus greatly improving moisture-proof performance.
Dustproof: GOB packaging completely prevents external objects, dust and other metal dust and powder from invading, and eliminates the occurrence of dead lights and brightening problems caused by short circuits.
Anti-collision: The LED display in the GOB package has more than 10 times impact force that is than that of the SMD, with stronger compression resistance, higher surface protection level, and better performance when impacted.
Anti-collision: High protection level, with anti-collision, anti-collision, easy maintenance and other functions. It solves the problem of PCB scrapping caused by lamp beads during installation and debugging, and even the solder pads falling off. Slight collisions do not affect normal use, greatly reducing the after-sales rate and extending the service life.
Anti-static: GOB led panel effectively blocks the propagation of static electricity, greatly reducing the occurrence of breakdown of electronic components. In coastal and hot and humid areas, the air contains a large amount of chloride ions, which undergoes electrochemical reaction with electronic components, which is highly corrosive. The GOB-packaged LED display will not be disturbed by the outside world and has a good anti-salt spray effect.
To sum up, GOB LED panels have become an ideal choice for LED poster screens due to their excellent protection and durability.

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