Panoramic view of splicing screen size: 43/46/49/55/65/75 inch selection comparison and viewing distance guide

From viewing distance, wall size to patchwork level and installation conditions, help integrators, enterprises and government customers choose the right splicing screen solution

The first mistake of size selection often starts with "want a big screen.The most common sentence in project communication is "we want to make a big screen". But "big" is not the starting point for selection. The final effect of the LCD splicing screen is determined by four variables at the same time:Single screen size, patchwork level, viewing distance, wall condition. If any one variable is magnified alone, it is possible to create a scheme that "looks big and is difficult to use.

• The wall surface is only 3 meters wide and is 65 inches 4 × 4 hard. There is no maintenance space on both sides.
• The viewing distance is 2 meters, 3.5mm stitching is selected, and the picture is chopped by black lines.
• The budget is tight, but staring at 0.88mm, the cost of the screen doubles, and the signal system is not matched.
• The 75-inch single screen is indeed atmospheric, but the weight is close to 30-46kg. The wall bearing and bracket selection should be re-verified.

Size selection is not "pick a piece of the largest screen",Find a feasible solution between viewing distance, wall size, patchwork grade, installation conditions and budget. This article makes clear the specification data of six sizes, splicing occupancy, viewing distance formula, scene matching and purchasing verification, so that integrators, party a and purchasing personnel can use them.

1. 43/46/49/55/65/75 inches: look at hard data first

The LCD splicing screen can only beSame size, same model single screenSplicing, mixed size splicing is not feasible in conventional projects. The first step in selecting the size is to know how much wall and how much each single screen occupies.

Single screen appearance size and weight comparison

Data Description: The above dimensions are the reference values of common specifications. Different panel sources (LG, BOE, Samsung, etc.) and flat-laid specifications will lead to slight differences in width and height. 75-inch products have a large weight span due to different structural designs. The selection must be provided by the supplier.Specific Model SpecificationThe "inch number" cannot be used directly as the size.

A neglected fact: the real value of large-size single screen in "reducing the number of stitches"

The core advantages of 75 inches and 65 inches are not just "larger single screen". under the same total display area,The larger the single screen, the smaller the number of screens required, the smaller the total number of patchwork seams, and the lower the system complexity.。

Take a wall surface about 3.6 meters wide and 2 meters high as an example:

• Use 55 inches (about 1222mm wide) to make 3 × 3, with a total width of about 3.67 meters, and the total number of stitches: 2 horizontal and 2 vertical and 2 × 3 lines, with obvious visual segmentation.
• Use 65 inches (about 1443mm wide) to make 3 × 3, with a total width of about 4.33 meters, which may be extra wide. However, if it is 2 × 3, the total width is about 4.33 meters and the total height is about 1.63 meters, the number of patchwork joints will be greatly reduced.
• Use 75 inches (about 1666mm wide) to make 2 × 2, with a total width of about 3.33 meters and a total height of about 1.89 meters,Total number of patchwork joints decreased from "multiple" to "cross" 2The picture integrity of close viewing is significantly improved.

But the price is: The purchase unit price of a large-size single screen and the weight of a single screen increase simultaneously, and the requirements for wall load-bearing, bracket specifications and transportation and installation are also higher. Sales of 65 inches and above are much lower than 46/49/55 inches, and the cost increase is obvious.

Stitching Occupant and Wall Backstepping Formula

Don't ask "use a few screens" first, measure the wall first.

The available dimensions of the wall surface need to be deducted: reserved maintenance space around (recommended at least 30-50cm), bottom cabinet or maintenance height, and wrapping on both sides.

The same wall, 55 inches to do 2 × 2(4 screens),46 inches to do 3 × 3(9 screens). The former has a large single screen, less stitching, and the total price may be lower; the latter has a large number of screens, a small single screen, and the total price may be higher but the picture density is higher.There is no absolute merit, it depends on the viewing distance and content type.

2. Viewing Distance: The Common "Judgment" of Size and Patchwork"

Size and patchwork cannot be selected separately. determine their upper limit, isDistance from nearest viewer to screen。

Minimum viewing distance formula

• 46 inches: minimum viewing distance ≈ 1.75 meters
• 49 inches: minimum viewing distance ≈ 1.87 meters
• 55 inches: minimum viewing distance ≈ 2.10 meters
• 65 inches: minimum viewing distance ≈ 2.48 meters
• 75 inches: minimum viewing distance ≈ 2.86 meters

The meaning of this formula is not "you must be unable to see more than this distance", but "below this distance, pixel particles and patchwork will begin to become perceptible". If there are sofas, podium or operator seats on the project site, check the distance from the nearest row of seats to the screen instead of the distance from the center of the room to the screen.

Viewing Distance-Size-Patchwork Matching Table

The data refer to the common matching logic of seam and distance in the industry: 0.88-1.7mm ultra-narrow seam is strongly recommended within 3 meters, 1.8-3.5mm is optional for 3-6 meters, and 3.5mm above 6 meters is also acceptable.

3. size × patchwork × scene: a decision matrix

The following matrix is not a "standard answer",Filter tool used in project communication to exclude non-viable combinations. Each row represents a typical requirement, and each column gives the priority evaluation direction.

Usage: First lock the candidate range of "priority size" and "priority splicing" according to the scene, then use the wall backstepping formula to calculate how many pieces can actually be put, and finally use the budget as a trade-off. Don't skip the scene directly than the price.

"Decision Points" and Common Mismatches of 4. Dimensioning

43 inches: small space dedicated, don't expect it to support the big scene

The 43-inch single screen is about 956mm wide and weighs only about 12kg. It is suitable for small conference rooms, retail windows, elevator halls and stores with limited space. Common patchwork is 3.5mm and 1.8mm.

Typical Mismatch: Use 43 inches to spell 3 × 3 to cover a 4-meter-wide wall. The total width is about 2.87 meters, with too much white space on both sides. The small single screen leads to a relatively dense number of patchwork seams, which appear "broken" from a distance ". The reasonable positioning of 43 inches isSmall area, close distance, few screens, not "use small screen to spell out large screen effect".

46 ": The" old-line main force "of monitoring scenes, but is giving way

The 46-inch single screen is about 1002mm wide, which is one of the largest sizes in the traditional monitoring splicing screen. The 3.5mm splicing products are mature, with sufficient supply and low after-sales cost. Suitable for medium-sized monitoring rooms, park duty rooms and budget-sensitive projects.

Key Selection Points: If the wall height is limited (for example, only about 2.2 meters), the total height of 46 inches for 3 × 3 is about 1.68 meters (including stitching), which is easier to control than 55 inches for 3 × 3 (about 2.09 meters).The wall is short, give priority to 46 inches or 49 inches, rather than hard plug 55 inches.

49 inches: "Transition size" between 46 and 55, value in height

The 49-inch screen width is about 1088mm and the height is about 608-619mm. It is close to 46 inches in width and about 50-60mm more than 46 inches in height. ForThere is a slight margin in height, but the width is not enough to put 55 inches in 3 columns.The wall surface of 49 inches can be "one gear higher than 46 inches and one gear narrower than 55 inches".

Applicable scenariosTraining room, brand image wall, small and medium-sized exhibition hall. Patchwork optional 3.5/1.8/0.88mm.

55 inches: the most common size and the most "overused" size

The 55-inch single screen is about 1222mm wide and is the main size for monitoring, conferences, advertisements and exhibition halls. The supply of goods is the most abundant, and the sewing specifications are the most complete (3.5/1.8/0.88mm have mature products).

The real selection problem of 55 inches is not "do you want to choose", but "use it to spell a few pieces".

• 2 × 2(4 pieces): the total width is about 2.45 meters and the total height is about 1.39 meters, suitable for small conference rooms and store image walls.
• 3 × 3(9 pieces): the total width is about 3.67 meters and the total height is about 2.09 meters, suitable for medium-sized monitoring rooms and report halls.
• 4 × 4(16 pieces): The total width is about 4.89 meters and the total height is about 2.79 meters. It needs floor height and maintenance space support.

Common mismatches: The wall surface is 3 meters wide, with 3 rows of hard rows and 55 inches (total width is about 3.67 meters). There is no maintenance space on both sides, and the wrapping cannot be made. After installation, the screen is almost attached to the wall.The 3-meter wall width is either 2 columns of 55 inches or 46/49 inches for 3 columns.

65 inches: the watershed of large space, the weight began to "talk"

The 65-inch single screen is about 1443mm wide, weighs about 18kg (some models are higher), and has a minimum viewing distance of about 2.48 meters. Suitable for large conference rooms, lecture halls, monitoring centers and exhibition halls.

Key Selection Points: 65 inches to do 2 × 2, the total width of about 2.89 meters, the total height of about 1.63 meters, in 3-4 meters wide wall is a more balanced choice. Do 3 × 3, the total width is about 4.33 meters, need at least 4.8 meters of wall net width, and single screen 18kg × 9 pieces plus bracket and frame, the total load on the wall load-bearing requirements increased significantly.More than 65 inches, the installation structure must be issued by the structural engineer or supplier bearing accounting, can not be based on "each screen more than ten kilograms" rough estimation.

75 inches: "less patchwork" for "high requirements"

The 75-inch single screen is about 1653-1666mm wide, with a large weight span (ranging from 25-46kg, depending on seam specifications and structural design) and a minimum viewing distance of about 2.86 meters.

The core value of 75 inches is "2 × 2 instead of more small screens". A 3.4-meter-wide and 1.9-meter-high wall surface is just covered by 75-inch 2 × 2, with only two crosses for the patchwork. If the same wall surface is 55 inches, it needs 3 × 3 (total width 3.67 meters may be extra wide) or 3 × 2 (total height 1.39 meters, leaving too much white space up and down).

Cost: The weight of a 75-inch single screen can reach more than 40kg, and the total load of 2 × 2 can easily exceed 160kg (excluding brackets and frames). The wall must be a load-bearing wall or reinforced with steel structure. Transportation and installation require at least 2-3 people to cooperate, and the specifications of the hydraulic support and cabinet should be upgraded accordingly.The 75-inch is not the "larger 55-inch", it is a system-level option with more demanding installation conditions.

Verification of 5. installation conditions: after the size is selected, the first thing is to look at "whether it can be installed or not"

If the size selection is separated from the installation conditions, it is equal to talking on paper.

Walls and load-bearing

Need to confirm: whether the wall is concrete, brick wall or light steel keel partition wall; Single screen weight and additional weight of bracket and frame; Whether the total load is within the bearing range of the wall.For more than 65 inches or more than 3 × 3 splicing scale, it is recommended to require the supplier to provide support load-bearing accounting or on-site structural evaluation.

Power supply and cable

The total power of the splicing screen, processor, matrix, decoder and playback box; whether the position of the power socket is convenient for shunt control and maintenance; whether it is necessary to add new lines.The larger the size and the more screens, the load and wiring complexity of the single power supply will rise simultaneously.

Heat dissipation and maintenance space

Ventilation gaps are required between the splicing screens, and the brackets and cabinets cannot be completely enclosed. Pre-maintenance or post-maintenance directly determines how much space should be left around the wall.Embedded installation should especially reserve wrapping and disassembly space, otherwise the wall needs to be removed for later maintenance.

Installation height

For viewing the scene in a sitting position (conference room), the center point of the screen is recommended to be 1.2-1.5 meters; for viewing the scene in a standing position (command center), the center point can be 1.6-1.8 meters. The median line of the bottom screen is as close as possible to the horizontal sight height of the human body sitting posture (about 1.28 meters).

6. 75-inch LCD Splicing vs Small Pitch LED vs Large Size Single Screen: Competitors Inseparate from Size Selection

In the range of 65 inches or more, the LCD splicing screen is no longer the only option. Customers in the program stage will certainly ask: "why not directly on the small spacing LED?"

LCD splicing screen inMulti-channel HD video details monitoring and comparisonMore cost-effective in the scene; small-pitch LEDs inOverall situational immersive awareness and physical seamlessMore advantages under the request. If the viewing distance is more than 3 meters, the visual difference between P1.8 and P1.2 LEDs is almost indistinguishable to the naked eye, but the price difference is more than doubled.When selecting the size, do not only compare the unit price of "LCD 75 inch" and "LED P1.5", but also compare the total price of the system "to achieve the same picture integrity and information density.

7. procurement verification and contract annex: "lock" the size selection in the document

The result of size selection can not only stay in the scheme diagram. The following contents shall be included in the procurement documents and contract attachments to avoid delivery deviation.

Response documents that the supplier must provide

• Single screenSpecific modelThe appearance and size chart (width x height x thickness) and net weight of the, can not only write "55 inches".
• Load-bearing specifications and fitting instructions for splicing brackets.
• Installation manual and site survey requirements (wall, power supply, heat dissipation, maintenance space).
• Warranty scope, spare parts supply cycle and after-sales response time limit.

Suggested as an Annex to the Contract

• List of Spliced Screen and Bracket Configuration (including model, size, patchwork, quantity, single screen weight and total load).
• Confirmation Form of Site Investigation and Installation Conditions.
• Heat Dissipation and Maintenance Space Requirements.
• Scope of Installation, Training and Acceptance Services.
• Schedule of Warranty, Spare Parts and Maintenance Responsibilities.

Dimensional relevant verification points at the time of acceptance

Whether the deviation between the total width and height after actual installation and the plan drawing is within the allowable range; the uniformity of the patchwork seam; whether the height of the screen center conforms to the viewing scene; whether the maintenance space is actually available.

8. common mistakes

• Myth 1: Set the number of inches first, then measure the wall surface.The correct order is the reverse: measure the wall surface → buckle the maintenance space → calculate the accommodated quantity → match the viewing distance → see if the inch number is valid.
• Misunderstanding two: the "inch" when the "size".55 inches is not "55 inches wide", and the weight of different models of 75 inches can vary from 25kg to 46kg. Must be subject to specific model specifications.
• Myth three: size and patchwork separate decision-making.At a viewing distance of 2 meters, the experience of 55 inches 3.5mm may not be as good as 46 inches 1.8mm. Patchwork and size must be placed in the same decision sheet.
• Misunderstanding 4: Use a large-size single screen to "eliminate the seam" and ignore the installation conditions.The 75-inch 2 × 2 seam is indeed less, but the requirements of single-screen weight and total load on the wall may turn the "money saved for seam" into "money for wall reinforcement".
• Misunderstanding 5: More than 65 inches still according to "each screen more than ten kilograms" to estimate the load.65 inches is about 18kg,75 inches can reach more than 40kg, plus brackets, frames and cables, the total load needs professional accounting.
• Myth 6: Only look at the unit price of the screen body, not the "total price of the system under the same display area".Large-size single screen reduces the number of screens, which may reduce the number of processor channels, matrix size and installation hours, and small multi-screen increases the number of screens, which may increase the signal system and construction costs. Need to pressComplete system to achieve the same picture effectTo compare prices.

9. FAQ

10. Conclusion