Amid the global digital wave, display screens have become the core carrier for information transmission and scene interaction, widely penetrating thousands of industries such as mobile phones, televisions, industrial control, security monitoring, and commercial display. The market is flooded with a wide variety of LCD screens, including segment LCDs, dot matrix screens, TFT screens, OLED screens, and LCD Video Walls, making it difficult for users to make choices. In fact, the core differences between various LCD screens stem from differences in light-emitting principles, structural designs, and technical positioning, which in turn determine their application scenarios and value boundaries. This article will systematically dissect the types and core differences of mainstream LCD screens, focusing on the preferred solution in the professional large-screen display field—LCD Video Wall. It will also conduct an in-depth analysis of the technical advantages and application value of Qtenboard LCD Video Wall, providing professional references for large-screen display needs in various industries.
From a technical perspective, mainstream LCD screens can be divided into two core camps: LCD (Liquid Crystal Display) and OLED (Organic Light-Emitting Diode). The core difference between the two lies in the light-emitting method: LCD relies on an external backlight to illuminate the screen and achieves imaging by regulating the light transmittance through liquid crystal molecules; OLED does not require a backlight and relies on the organic materials of the pixels themselves to emit light for imaging. This essential difference gives rise to performance differences among various subdivided products. The following will analyze the technical characteristics, application scenarios, and core differences of mainstream categories one by one.
LCD (Liquid Crystal Display) is currently the most widely used display technology, featuring advantages such as small size, light weight, low power consumption, and low radiation. After decades of development, it has formed a complete technical system. According to the display content, physical structure, and application form, LCD can be subdivided into core categories such as segment LCDs, dot matrix LCDs, TFT-LCD screens, and LCD Video Walls.
Segment LCD, also known as segmented LCD or 8-segment screen, was first developed in Japan and introduced to China in the 1980s. Initially used to replace LED nixie tubes, it is one of the simplest categories in the LCD family. Its core feature is to achieve display through preset long strip-shaped or fixed graphic pixels. The most common is the 7-segment display structure, which can accurately present numbers 0-9. Some customized models can display simple symbols or fixed patterns.
In terms of technical advantages, segment LCDs have the characteristics of extremely low power consumption, low cost, strong stability, and long service life, adapting to a wide temperature range from low to normal temperature. The application scenarios are highly focused on simple digital display needs, such as calculators, electronic clocks, air conditioner thermostats, water heater displays, multimeters, and other small household appliances and precision instruments. Compared with other LCD categories, the core limitation of segment LCDs is that the display content is fixed, and flexible graphic or text display cannot be achieved, making them only suitable for single-function information transmission scenarios.
Dot matrix LCD គឺ ជា ឧបករណ៍ បង្ហាញ ដែល មាន ជា ចំនួន ភីកសែល ធំ ដែល បាន រៀបចំ ក្នុង អារេ ។ ភីកសែល អាច ត្រូវ បាន ត្រួតពិនិត្យ ដោយ ទំនាក់ទំនង ដើម្បី បើក និង បិទ ។ យោង តាម ទិន្នន័យ ភីកសែល វា អាច ត្រូវ បាន ចែក ទៅ ក្នុង អេក្រង់ ម៉ាទ្រីស LCD ចំណុច និង អេក្រង់ ម៉ាទ្រីស LED ចំណុច ខាង ក្នុង ការ អេក្រង់ ម៉ាស៊ីន ផែនទី LCD គឺ ជា ប្រភេទ មេ ។ លទ្ធផល សំខាន់ របស់ វា គឺ ភាព លឿន បង្ហាញ កម្លាំង ដែល អាច បង្ហាញ អត្ថបទ ក្រាហ្វិក រូបតំណាង មួយ ។ និង ចលនា ធម្មតា ដែល ត្រូវការ ។ ការ បញ្ជាក់ នូវ ភីកសែល ទូទៅ ត្រូវ បាន បង្ហាញ ជា "ភីកសែល ផ្ដេក × ភីកសែល បញ្ឈរ", ដូចជា ម៉ូដែល ទូទៅ 128 × 64 និង 240×3 ០ ។
According to the display accuracy and function, dot matrix LCD can be further divided into dot matrix character type and dot matrix graphic type: the dot matrix character type has a built-in fixed character library and can directly display preset letters, numbers, and punctuation marks, which is common in early electronic dictionaries and fax machines; the dot matrix graphic type has no fixed display limitations, with a larger display area and higher pixel specifications, and the control complexity is correspondingly improved. It is widely used in the display screens of small instruments and portable devices. Compared with segment LCDs, the display freedom of dot matrix LCDs is greatly improved, but limited by pixel density and driving technology, it is difficult to achieve high-definition color display, and the display size is usually small, which cannot meet the needs of large-screen display.
TFT-LCD (Thin Film Transistor-LCD) is the core technology for current high-definition color display and also the core component unit of LCD Video Wall. Its core breakthrough is the integration of a thin film transistor behind each liquid crystal pixel, which achieves high-speed, high-brightness, and high-contrast display effects by independently driving each pixel. The image quality is close to that of CRT monitors, completely solving the problems of motion blur and narrow viewing angle of traditional LCDs.
In terms of technical characteristics, TFT-LCD screens belong to dot matrix display devices, and the core indicators include pixel density, color gradation, viewing angle, etc. Color gradation is a key parameter to measure its color performance, with common ones being 256 colors, 4096 colors, 65536 colors (64K colors), and more than 260,000 colors. The higher the color gradation, the more natural the color transition and the more delicate the display effect. In terms of viewing angle, mainstream TFT-LCD screens adopt wide viewing angle technologies such as IPS (In-Plane Switching), which can achieve 178° full-view undistorted display. The application scenarios cover consumer electronics fields such as mobile phones, tablet computers, laptops, desktop monitors, and ordinary televisions, making it the basic carrier for high-definition color display. Compared with segment and dot matrix LCDs, the core advantage of TFT-LCD screens is high-definition color display capability, but their display size is limited by the single-screen production process, which cannot directly meet the needs of ultra-large-size display. This has also promoted the technical upgrading of LCD Video Wall.
ឃ្លាំង វីដេអូ LCD (ជម្រះ វីដេអូ គ្រីស្ទីត) គឺ ជា ប្រព័ន្ធ ការ បង្ហាញ អេក្រង់ ធំ ដែល បាន អភិវឌ្ឍន៍ ដោយ មូលដ្ឋាន លើ TFT-LCD ។ វា ទទួល យក ទំហំ ធំ ។ បែបផែន បង្ហាញ ទំនាក់ទំនង ខ្ពស់ តាមរយៈ បន្សំ គ្មាន សំឡេង នៃ ឯកតា splicing ពិសេស ច្រើន តាមរយៈ កម្មវិធី ត្រួតពិនិត្យ splicing ។ ជា កម្មវិធី បញ្ចប់ ខ្ពស់ នៃ បច្ចេកទេស LCD នៅ ក្នុង វាល អេក្រង់ ធំ ។ ជម្រះ វីដេអូ LCD កំពុង ទទួល យក លទ្ធផល នៃ ការ ប្រើ ថាមពល ទាប និង ភាព ស្ថិត ខ្ពស់ របស់ LCD ។ នៅ ពេលវេលា ដូចគ្នា វា កែប្រែ ទៅ កាន់ ការ ទាមទារ ប្រតិបត្តិការ បន្ថយ តាមរយៈ ការ ធ្វើ ឲ្យ ប្រតិបត្តិការ មធ្យោបាយ និង គឺ ជា ដំណោះស្រាយ ចំណូល ចិត្ត សម្រាប់ ការ បង្ហាញ អេក្រង់ ធំ នៅ ក្នុង ធនធាន, គម្រោង, សុវត្ថិភាព និង វាល ផ្សេង ទៀត ។
Compared with ordinary TFT-LCD screens, the core upgrades of LCD Video Wall include: first, the adoption of ultra-narrow bezel splicing technology, with a splicing gap as low as 0.5mm or less, achieving an almost seamless overall display effect; second, the improvement of brightness and contrast, with the brightness of professional splicing units reaching more than 700cd/㎡ and the contrast ratio up to 10000:1, ensuring clear images even in strong light environments; third, the optimization of heat dissipation and stability design, adapting to 24/7 continuous operation with a service life of 50,000-100,000 hours; fourth, supporting flexible splicing combinations, which can achieve any specification of splicing such as 1×N and M×N according to scene needs, and at the same time support various display modes such as full-screen display, split-screen display, image roaming, window opening and overlapping. On this basis, Qtenboard LCD Video Wall has further optimized the color calibration technology and intelligent control system, becoming a benchmark product in the professional large-screen display field.
OLED (Organic Light-Emitting Diode) is a new type of display technology that has developed rapidly in recent years. Its core advantage is that pixels emit light by themselves, without the need for a backlight and liquid crystal layer, and has the characteristics of ultra-thinness, ultra-light weight, extremely high contrast ratio, and fast response speed. Its light-emitting principle is to excite organic materials to emit light through electric current. Each pixel can be independently controlled to turn on and off. When displaying pure black, the pixels can be completely turned off, so the contrast ratio can reach infinity, and the color performance is more realistic and delicate.
In terms of application scenarios, OLED screens are widely used in consumer electronics fields such as high-end mobile phones, foldable screen devices, and smart watches. Some large-size OLED screens are also used in high-end televisions. However, OLED technology has obvious limitations: first, high cost. The production process of large-size OLED screens is complex, and the price is much higher than that of LCD products of the same size; second, short service life. Organic light-emitting materials have aging problems, and long-term use may cause "screen burn-in", that is, after long-term display of fixed images, residual images remain; third, insufficient stability. The luminous efficiency will decrease significantly in high-temperature environments, making it difficult to adapt to professional scenarios that require 24/7 continuous operation. Compared with LCD Video Wall, the cost and stability defects of large-size OLED screens make them unable to meet the long-term use needs of professional fields such as government command centers and security monitoring centers.
ដោយ និយាយ យ៉ាង ត្រឹមត្រូវ អេក្រង់ LED ដែល បាន បញ្ជាក់ ជា ទូទៅ ដោយ អ្នក ប្រើ មិន មែន ជា មែក LCD ទេ ។ គោលការណ៍ សំខាន់ របស់ វា គឺ ត្រូវ ធ្វើ ឲ្យ ការ បង្ហាញ តាម រយៈ ការ លេង ពន្លឺ នៃ ចំនួន ធំ របស់ LED ពន្លឺ អារេ , គោលការណ៍ របស់ LCD ។ លម្អិត សំខាន់ នៃ អេក្រង់ LED គឺ ពន្លឺ ខ្ពស់ បំផុត ដែល អាច ទៅ កាន់ ច្រើន ជាង 1000 cm/ ㎡ ។ ការពារ ពន្លឺ កម្លាំង និង ការ កែប្រែ បរិស្ថាន ខាងក្រៅ ទាំងអស់ ។ ពួក វា ជា ទូទៅ ក្នុង វិធីសាស្ត្រ ដូចជា សញ្ញា ការ ប្រកាស ចេញ, បង្ហាញ ស្តង់ដារ ធំ និង អេក្រង់ ដំណើរការ ខាងក្រៅ ។
Compared with LCD Video Wall, the core limitations of LED screens are large pixel pitch, obvious graininess when viewed at close range, and inability to achieve high-definition and delicate display effects; at the same time, they have high power consumption and heat generation, high long-term operation costs, and poor color consistency, making it difficult to meet professional monitoring, command and dispatch, and other scenarios that require high image quality accuracy. Therefore, LED screens are more used as a supplementary solution for outdoor large screens, while LCD Video Wall still dominates the indoor professional large-screen display field.
To clearly present the differences between various LCD screens, the following is a comparison from five core dimensions: light-emitting principle, core advantages, display effect, application scenarios, and service life:
In the professional large-screen display field, LCD Video Wall has become the preferred solution for scenarios such as government command centers, security monitoring centers, enterprise meeting rooms, and commercial display, relying on core advantages such as ultra-large size, high-definition image quality, high stability, and low operation cost. As a leading brand in the professional display field, Qtenboard is deeply engaged in the technical research and development and product innovation of LCD Video Wall, relying on core technical advantages to build differentiated competitiveness and provide one-stop large-screen display solutions for various industries.
The splicing gap is a core factor affecting the display effect of LCD Video Wall. Qtenboard LCD Video Wall adopts industry-leading ultra-narrow bezel splicing technology, with a splicing gap as low as 0.5mm or less, achieving an almost seamless overall display effect. This technological breakthrough completely solves the pain point of strong "sense of fragmentation" of traditional splicing screens, making multiple splicing units form a complete logical display screen. Whether it is full-screen display of high-definition maps, monitoring panoramas, or split-screen display of multiple channels of data, it can present a coherent and smooth visual effect. Compared with ordinary splicing screens with a splicing gap of more than 5mm, the visual integrity of Qtenboard LCD Video Wall is greatly improved, especially suitable for command and dispatch, big data visualization, and other scenarios that require high display coherence.
Qtenboard LCD Video Wall adopts professional-grade TFT-LCD splicing units, achieving three core image quality improvements through technical optimization: first, high-brightness design, with screen brightness reaching more than 700cd/㎡, far exceeding the 250-300cd/㎡ of ordinary televisions, ensuring clear and sharp images even in indoor or strong light environments with direct sunlight; second, ultra-high contrast ratio, adopting dynamic contrast enhancement technology, with a contrast ratio of up to 10000:1, making black purer, white brighter, and color layers richer; third, high color saturation, through professional color calibration technology, the color saturation can reach 80%-92%, far exceeding the 50% of ordinary CRT, and supporting color calibration of static and dynamic images to ensure consistent color after long-term operation. Whether displaying high-definition monitoring images, dynamic data charts, or high-definition video content, Qtenboard LCD Video Wall can accurately restore color details and meet professional-level image quality requirements.
Professional large-screen scenarios such as security monitoring centers, power dispatch centers, and emergency command centers require equipment to have 24/7 continuous operation capabilities, which puts extremely high requirements on the stability and service life of LCD Video Wall. Qtenboard LCD Video Wall has carried out comprehensive stability optimization for professional scenarios: adopting industrial-grade heat dissipation design, real-time adjusting heat dissipation efficiency through an intelligent temperature control system to ensure stable temperature of the equipment during long-term operation; selecting high-quality backlight modules and liquid crystal materials, with a backlight service life of 50,000-100,000 hours, far exceeding the 10,000-30,000 hours of ordinary LCD screens; built-in intelligent diagnostic system, which can real-time monitor the operation status of the equipment, timely warn of fault risks, and reduce maintenance costs. According to actual measurements, Qtenboard LCD Video Wall can achieve 24/7 uninterrupted operation throughout the year, with stability far exceeding that of ordinary consumer-grade display equipment, making it a reliable choice for professional scenarios.
Qtenboard LCD Video Wall has extremely strong adaptability, supporting any specification of splicing combinations such as 1×N and M×N. The size of splicing units covers mainstream specifications such as 46 inches, 55 inches, and 65 inches, which can be flexibly customized according to the scene space size and display needs. In terms of the control system, it is equipped with independently developed intelligent splicing control software, supporting various display modes such as full-screen display, split-screen display, image roaming, window opening and overlapping, and image scaling, which can easily realize synchronous or asynchronous display of multiple signal sources. At the same time, it is equipped with rich input and output interfaces, including VGA, HDMI, YPbPr, AV, etc., which can be directly connected to various devices such as computers, cameras, DVRs, and servers, and supports remote network control for user convenience.
In long-term operation scenarios, the power consumption and service life of equipment directly affect the operation cost. Qtenboard LCD Video Wall inherits the low power consumption advantage of LCD technology. The power consumption of a single splicing unit is far lower than that of LED screens. Combined with intelligent power consumption adjustment technology, it can automatically adjust the power consumption according to the brightness of the displayed content, further reducing the operation cost. At the same time, high-quality core components ensure that the equipment has a service life of 50,000-100,000 hours. Calculated by 12 hours of operation per day, it can operate stably for more than 10 years, greatly reducing the frequency of equipment replacement, indirectly reducing maintenance costs and resource waste, and conforming to the development trend of green environmental protection.
Relying on core technical advantages, Qtenboard LCD Video Wall has been widely used in various fields such as government, enterprises, security, transportation, energy, and commerce, becoming the core supporting equipment for large-screen display in various industries. The following are analyses of typical application scenarios:
In scenarios such as urban emergency command centers, power dispatch centers, water conservancy flood control command centers, and meteorological early warning centers, Qtenboard LCD Video Wall undertakes the core decision support function. Through the splicing large screen, it can real-time integrate and display multiple sources of data such as urban monitoring images, traffic flow data, power operation parameters, and meteorological early warning information, realizing centralized visual presentation of information. Command personnel can quickly grasp the overall situation through the large screen, issue accurate dispatch instructions, and improve emergency response and decision-making efficiency. For example, in flood control command scenarios, LCD Video Wall can simultaneously display meteorological radar images, hydrological monitoring data, and river channel monitoring images, providing comprehensive data support for flood control decisions.
The security monitoring field is one of the core application scenarios of LCD Video Wall. Whether it is civil security in shopping malls, hotels, and communities, or public security in airports, stations, and ports, it is necessary to realize centralized display and real-time monitoring of multiple channels of monitoring images through large screens. Qtenboard LCD Video Wall supports synchronous access and display of multiple camera signals, can display monitoring images of different areas in split screens according to needs, or focus and zoom in on key area images. Combined with an intelligent monitoring system, it can realize automatic early warning of abnormal situations. Its 24/7 high stability ensures that the monitoring system operates uninterrupted all day long, providing reliable guarantee for security work.
In scenarios such as enterprise meeting rooms, lecture halls, and data centers, Qtenboard LCD Video Wall has become a core tool for efficient collaboration. In video conference scenarios, the large screen can simultaneously display remote conference images, meeting documents, and data charts, improving meeting communication efficiency; in data centers, the large screen can real-time display enterprise business data and server operation status, realizing visual monitoring and management of business operations; in enterprise exhibition halls, the large screen can display enterprise brand image, product introduction, and development history, enhancing the brand display effect.
In commercial scenarios such as shopping malls, shopping centers, brand stores, and exhibition centers, Qtenboard LCD Video Wall has become the core carrier of immersive brand communication relying on its ultra-large size and high-definition image quality. It can play brand promotional videos, product display animations, promotional activity information, and other content, attracting consumers' attention through shocking visual effects, and enhancing brand influence and product exposure. For example, in high-end brand stores, LCD Video Wall can be spliced into an ultra-large-size brand image wall, simultaneously displaying product details and brand stories, creating a high-end shopping experience.
In transportation hubs such as airports, railway stations, subway stations, and highway service areas, Qtenboard LCD Video Wall is used to real-time release flight information, train schedules, train dynamics, road condition information, and other content. Through clear large-screen display, it is convenient for passengers to quickly obtain key information and improve the travel experience. At the same time, it can simultaneously display monitoring images in the hub, assisting staff in passenger flow guidance and safety management, ensuring the orderly operation of the transportation hub.
In summary, based on differences in technical principles, various LCD screens have formed their own application boundaries: segment screens and dot matrix screens are suitable for simple display needs, TFT-LCD screens dominate high-definition display in consumer electronics, OLED screens focus on high-end thin and light display scenarios, while LCD Video Wall has become the absolute main force in the professional large-screen display field relying on core advantages such as ultra-large size, high stability, and high-definition image quality.
As a leading brand in the professional display field, Qtenboard is deeply engaged in the technical research and development and product innovation of LCD Video Wall. Through core technical advantages such as ultra-narrow bezel splicing, high-definition image quality optimization, and 24/7 stable operation, it provides one-stop large-screen display solutions for various industries. Whether it is government command and dispatch, security monitoring, enterprise collaboration, or commercial display, Qtenboard LCD Video Wall can accurately match the needs, and become the preferred brand for professional large-screen display with its excellent performance and reliable quality.
Amid the continuous deepening of digital transformation, the demand for professional large-screen display will continue to grow. Qtenboard will continue to focus on technological innovation, continuously optimize the performance of LCD Video Wall products, expand application scenarios, provide stronger visual support for the digital upgrading of various industries, and lead the development direction of the professional large-screen display industry.
ចុច ដើម្បី អាន លម្អិត លម្អិត លម្អិត និង សិក្សា អំពី លក្ខណៈ ពិសេស មុខងារ របស់ វា និង ការ ប្រតិបត្តិការ ពិត ។
📖អាន លទ្ធផល@ info: whatsthis
HKM
EN 
MAY 
TH 
CHT 
ID 
BUR 
FIL 
LAO 
SIN 
VIE 