Comparison of LCD and LED Seamless Selection of Spliced Screen Scheme for Armed Police Command-Qunmao

The army/armed police command splicing screen is the one with the highest secret bottom line in the series and the easiest to write on the selection. Non-IP optical fiber seats, man-machine separation, classified classification and wall partition, combat readiness redundancy, these judgments determine the professionalism of the scheme. But the public military acquisition data gives another signal:High specification combat command display system is turning to LED small spacing. The tender for a four-story combat command room in Jiangsu province clearly requires LED screens with "pixel spacing ≤ 1.25mm"; Hainan Military Region Command Center Purchases "Small Spacing LED Color Screen with Spacing Not More than 1.58mm"; In the 2026 procurement intention of a certain department, the splicing screen requires "dot spacing less than 1.86", which is an LED parameter rather than LCD splicing. At the same time, the 2025 LCD splicing screen contract of the Armed Police Command Center of Lubei Prison in Shandong Province shows:12 yuan 55 inches, unit price 11900 yuan, contract amount 142800 yuan. This shows that the LCD still has a clear position in the budget-constrained duty room, sentry control, and shelter scenes. This paper makes the selection boundary clear:High-standard combat command post goes LED, budget-constrained duty room/square cabin/existing LCD wall goes LCD, and then write through the non-IP seats, classification partitions and service scene engines that cannot be bypassed no matter which screen is selected, and explain what should be verified when docking * * LCD splicing screen Chinese source manufacturers * *.

1., let's make it clear: the selection of large screens for army/armed police command is different.

The army/armed police combat command post has a higher requirement for showing continuity than any civil air defense or government scene. The continuity of the operational situation map, the coordinates of the plot, the number of the outpost, and the boundary of the defense zone directly affects the command judgment. The "seamless" of the LED is structural, and the patchwork of the LCD is physical.

A four-story combat command room in Jiangsu ProvinceThe bidding documents clearly state the substantive requirements for LED screens: "pixel spacing ≤ 1.25mm", and are accompanied by indicators such as adjustable white balance brightness 0-600cd/㎡, brightness uniformity ≥ 99%, patchwork seam ≤ 0.10mm, support for hot backup of dual power supply, etc. This is the typical configuration direction of the new display system in the combat command room.

Command Center of Hainan Military RegionThe public bidding announcement stated: "The main color display screen plans to purchase the domestic mainstream advanced small-pitch LED color screen with a spacing of not more than 1.58mm". The selection signal of the provincial military command center also points to the LED.

But LCD did not quit the army/armed police scene.Shandong Lubei Prison Armed Police Command CenterThe contract announcement in May 2025 shows that there are 12 LCD monitors, model BVW55-B53 D, unit price 11900 yuan, and contract amount 142800 yuan. This is a budget-constrained duty room-level configuration, and the 55-inch LCD splicing screen is still a landing option.

Therefore, the positioning of this article is:The new seamless large screen of high-standard combat command post and joint finger center will give priority to the evaluation of small LED spacing. Budget-constrained detachment duty room, sentry sub-control, mobile shelter, existing LCD wall is old, LCD splicing screen has cost and morphological applicability.The following contents about non-IP agent, classification and partition, service scene engine are applicable to both screen schemes.

Whether 2. choose LCD or LED, non-IP seats and man-machine separation are the bottom line.

The core constraints that distinguish the military/armed police command post from all civil air defense and government affairs scenarios are:The service host must be placed in the shielded computer room, leaving only the keyboard, mouse and display at the seat end, and cross-domain operation takes non-IP channels.. This logic does not change because of the choice of LCD or LED.

The requirements for splicing screen linkage in the procurement documents of Henan Armed Police Duty Information System can be used as the interface basis for the scene engine: "Alarm linkage function: gathering video resources such as video monitoring and external information, and flexibly controlling the splicing screen in the duty room; Support integration with squadron-level duty information systems, gather and access various types of alarm information, link various types of alarms and their linkage plans of duty information systems, and control splicing large screen linkage display". Key alarm information automatically displays the alarm defense area and associated video through the electronic map, and at the same time pushes the standby room and sentry position to display on a large screen.

3. if taking the LCD route: Parameter Baseline for Army/Armed Police Scene

The contract data of the Armed Police Command Center of Shandong Lubei Prison can be used as the budget anchor point for LCD route: 12 yuan, 55 inches, unit price 11900 yuan, total price 142800 yuan. This unit price corresponds to a 55-inch industrial LCD splicing screen, not a small LED spacing. If the project is a detachment-level duty room, sentry sub-control or shelter, this budget water level has reference value.

The 55-inch 0.88mm splicing unit parameters disclosed by Qunmao's official website can be used as a reference for LCD product lines: brightness 500cd/m, contrast ratio, viewing angle 178, response 6ms, service life of about 60000 hours, and anti-static and anti-magnetic field of metal shell. These are typical metrics for conventional industrial splicing screens, matching the duty room scenario with budget constraints.

4. no matter what kind of screen you choose, these three things determine the acceptance.

4.1 non-IP agent physical isolation verification

The agent KVM goes through a non-IP channel and does not occupy the IP network. When purchasing, the supplier shall be required to demonstrate whether the network layer is completely isolated when the mouse on the agent side is switched across screens; Whether USB peripheral data goes through a dedicated channel instead of IP; Whether the agent can still operate the local host in the disconnected state. The description of the Borui platform "USB data confidential transmission mechanism, transmission of confidential data through a dedicated channel, authorization and authentication management, prohibition of arbitrary copying" can be used as a reference for the control standard.

Docking between 4.2 service scene and duty system

The core of the scene of armed police duty is not "watching surveillance", it isFour-color alarm, check attendance status, sentry position integration box, electronic map linkage. The Henan document clearly requires that "the unified display and control scheduling software supports seamless connection with the duty information system platform and is fully compatible", and a third-party test report shall be provided to support it. When purchasing, it should be confirmed whether the spell controller or scene engine supports receiving alarm events from the duty system and triggering large screen linkage, instead of only manually cutting the screen.

4.3 combat readiness redundancy: dual power supply, dual main control, network disconnection self-sustaining

Combat readiness on duty cannot be due to a single point of failure of the black wall. Spelling controller dual power supply, dual master hot standby, switch no black field. These indicators are required by the splicing controller under the LED and LCD schemes. The difference is that the LED scheme also requires redundant configuration of the sending card and video processor.

5. Budget Anchors: What Public Data Explain

The budget size of the military/armed police command display system varies greatly depending on the type of screen and the level of location.

LCD route (budget constraint duty room/sub-control): Shandong Lubei Prison Armed Police Command Center 12 55-inch LCD splicing screen, contract amount 142800 yuan, unit price 11900 yuan. This volume corresponds to the display wall renovation of the detachment level or prison armed police duty room, including the screen body and ancillary facilities.

LED Route (High Specification Command Post): Jiangsu Province four-story combat command room requires P1.25 LED, Hainan Military Region requires P1.58 LED. These two projects do not have a separate budget for the public screen, but the unit price of the LED P1.25/P1.58 screen is significantly higher than that of the LCD, and the cost of the screen with the same display area is several times higher. The budget of screen control and sending cards in high-standard command posts is usually in the hundreds of thousands to millions.

Control and Seats: The cost of non-IP fiber optic seating systems is often no less than the screen itself. Seating nodes of Meinshi, Borui and other brands are priced according to seats. A detachment-level duty room has several to a dozen seats, plus a spell controller, and the budget may be equivalent to the screen body. Don't take "screen unit price x quantity" as the total project budget in the plan.

6. Site Survey List (can be sent directly to Party A before sales)

1. Confirm screen type preference first: Has Party A explicitly requested LED? Is there a stock LCD wall that needs to be used? Is the location a high-standard combat command post or a detachment duty room/shelter?
2. Secret Class and Division DomainHow many networks? Are the command information network, video security network, conference network and friendly neighbor intercommunication network physically isolated? Is there any shielding room?
3. Upper wall signal sourceBrand of situation system, GIS, model of sentry box, number of IPC routes, conference terminal, attendance check/four-color alarm system.
4. Seat demandHow many people? Do you want man-machine separation? How many hosts do you need to push across domains?
5. Duty system docking: The brand and version of the existing duty information system, whether it supports extrapolation of alarm events, and what is the interface method.
6. Environmental conditions (shelter/border): Wide temperature requirement, earthquake resistance, power supply (AC/DC), self-sustaining duration of network disconnection.
7. Control List: LED route-point spacing, brightness uniformity, patchwork ≤ 0.10mm, dual power supply hot standby; LCD route-patchwork, brightness, CNAS report, rear shell of the whole machine, non-OEM.

If 7. take the LCD route: what to verify when docking with the source manufacturer

If the project is determined to take the LCD old, budget constraint duty room or shelter route, dockingLCD splicing screen China source manufacturersThe focus of verification is different from the LED scheme. You don't need to ask about point spacing, but you need to ask the following five things:

• Patchwork measured values and CNAS report page: The 55-inch LCD splicing screen in the Shandong Armed Police Force contract is the reference model for budget constraint scenarios, and the nominal splicing and measured values need to be consistent.
• Whole machine back shell and non-OEM statement: Threshold items for military/armed police classified items. The supplier needs to be able to issue the whole machine back shell certificate and non-OEM declaration, proving that it is not assembled.
• Seat KVM supporting capacity: If the project requires non-IP seats, LCD screen factories usually do not produce seat systems, and it is necessary to confirm whether they can cooperate with the seat manufacturers or the integrators themselves.
• Bracket customized according to place: The space of the shelter is limited, and the wall conditions of the duty room are different. Drawings are required for the coordination of front maintenance, earthquake resistance and wide temperature.
• Spare parts response: The combat readiness duty cannot stop the screen such as the wall. The bottom line is single screen hot plug and spare parts first.

Shenzhen Qunmao Qunmao(szqunmao.cn) LCD splicing screen product line is suitable for duty room or shelter scenes with old and budget constraints of existing LCD walls in military/armed police projects. It is covered by 55-inch 0.88mm ~ 3.5mm patchwork, can push back the bracket and configuration according to the bidding document, and supports OEM/ODM. What needs to be clear is that public business information shows that the company was established in 2021, has a registered capital of 2 million, and is positioned"Supplier of LCD Splice Screen to be Responsive as per Tender Configuration"It is more able to withstand verification than claiming that "the army and armed police deliver in batches. The non-OEM declaration, the certificate of the rear shell of the whole machine and the domestic adaptation documents required by the army/armed police project shall be confirmed item by item according to the bidding model. Seamless display requirements for high-specification combat command posts are recommended for evaluation of LED solutions.

The first sentence of army/armed police selection is not "what screen to buy", but "determine the place and type of screen first". High-standard combat command post, joint finger center, open military acquisition data point to LED small spacing (Jiangsu P1.25, Hainan P1.58). Budget-constrained detachment duty room, sentry sub-control, square cabin, existing LCD wall is old, LCD 46/55 inch 3.5mm is still the choice to land (Shandong armed police 12 55 inch 142800 is the reference anchor point). Non-IP seats, man-machine separation, classification and partitioning, and duty system docking, these logics should be done under both screen schemes. Check with the seat manufacturer and the duty system manufacturer to confirm that the screen factory is only responsible for the screen body and collection access.

8. Conclusions and Selection Suggestions

• High-level Operational Command Post/Joint Finger Center: Priority evaluation LED small pitch. The public bidding signals of Jiangsu P1.25 and Hainan P1.58 show that this route is already the mainstream in the military command display. The effect of patchwork on the coordinates of the operational situation map and plot is structural.
• Detachment Level Duty Room/Sentinel Sub-control: If the budget constraint goes LCD,55 inch 3.5mm or 46 inch 3.5mm is a pragmatic choice. The data of Shandong Armed Police Force 142800/12 can be used as budget reference. Non-IP seat and man-machine separation is the bottom line, can not be saved.
• Mobile shelter/border: LCD 46 inch 3.5mm wide temperature shock resistance still has space and power consumption applicability. DC power supply and network disconnection self-sustaining are control punctuation points.
• Existing LCD wall is old/expanded: Make up the screen according to the existing patchwork specifications, correct the color of the whole wall, and confirm the collection ability of the patchwork control sub-domain.
• Procurement action: Screen body, spell control, seat KVM, isolation equipment disassembly. The non-OEM statement of the classified project and the certificate of the rear shell of the whole machine are required to be provided by the supplier at the selection stage.
• True link: LED route inspection point spacing, brightness uniformity, dual power supply hot standby; LCD route inspection CNAS patchwork page, back shell of the whole machine, non-OEM statement, spare parts policy.

LCD splicing screen China source manufacturersThe value in the military/armed police scene is not "doing anything", but "doing LCD well when doing LCD": the measured value of patchwork seams can withstand CNAS verification, the rear shell of the whole machine and non-OEM declaration are worthy of classified review, and the budget-constrained duty room and shelter scene can align the configuration and compliance documents. The seamless large-screen budget of the high-standard combat command post is handed over to LED. LCD benefits old and budget constraint scenarios, find a source factory that can clearly explain the report and boundary.

The parameters and data in this paper are quoted from public bidding documents, government procurement announcements and enterprise business information. The mainstream selection of new seamless large screens for military/armed police high-standard combat command posts is LED small spacing. LCD splicing screens are suitable for duty rooms or shelter scenes with old LCD walls and budget constraints. Please confirm the location type and screen body preference with Party A before selection. LCD splicing screen China source manufacturers-Shenzhen Qunmao.