OFweek share: LED display small knowledge highlights

Introduction to the display

LED is the abbreviation of light emitting diode, referred to as LED. The LED display (LED panEL) is a display screen that displays various information such as text, text, graphics, images, animations, quotes, and television and video signals and is composed of an array of LED devices through a certain control method. As a new generation of display media, it has been widely used in exhibition centers, trading centers, auction centers, financial centers, information centers, securities, telecommunications, taxation, power supply, customs, courts, fire, stations, airports, terminals, talent markets, etc. Public places in the business hall.

Display performance

LED display screens are divided into text LED display, graphic LED display, computer video LED display, TV video LED display and market LED display. The market LED display generally includes LED displays for securities, interest rates, futures, and the like.

Display color

The LED display is divided into a single primary color LED display (including pseudo color LED display), a dual primary color LED display and a full color (three primary color) LED display. According to the gray level, it can be divided into 16, 32, 64, 128, 256-level gray LED display.

Monochrome screens are typically constructed of red luminescent materials.
Dual primary color screens are typically constructed of red and yellow-green luminescent materials.
The three primary color screens are divided into full color, composed of red, yellow-green (wavelength 570 nm), blue; true color, consisting of red, pure green (wavelength 525 nm), blue.

Basic light point

In the non-quote LED display, the indoor LED display can be divided into Φ3.0mm (62500 points/m 2), Φ3.7mm (44100 points/m 2), Φ4.8mm (27800 points) according to the single-point diameter of the LED used. /m 2), Φ5mm (17200 points / m 2), Φ8mm (10000 points / m 2) and other display;

The outdoor LED display can be divided into Φ8mm (10000 points/m 2), Φ12mm (3906 points/m 2), Φ16mm (2500 points/m 2), Φ26mm (1024 points/m 2) and other LEDs according to the pixel diameter. Display. In the market type LED display, the size of the digital tube can be divided into 2.0cm (0.8inch), 2.5cm (1.0inch), 3.0cm (1.2inch), 4.6cmm (1.8inch), 5.8cm (2.3inch), 7.6cm (3inch), etc.

Use environment

The LED display is divided into indoor LED display, semi-outdoor LED display and outdoor LED display according to the use environment.

The indoor screen area generally ranges from less than 1 square meter to more than ten square meters. The point density is high. It is used in non-direct sunlight or lighting environment. The viewing distance is several meters away, and the screen body does not have sealing and waterproofing ability.

TDC2000 systems have been in operation for more than 25 years and will be supported by Honeywell in the future. However, ageing workforce and a greater demand for energy savings, environmental protection and Improved operational effectiveness require users to look closely at different solutions for technology refresh and upgrades.


he upgrade possibilities for TDC2000Data Hiway include:

  • Technology Refresh Solutions - These are dedicated kits for replacement of legacy electronics with modernized ones with improved efficiency, lower power consumption and environmentally friendly materials

  • Technology Upgrade Solutions - These are solutions for replacement of TDC2000 equipment with newer generation technology that provides improved performance, reduced maintenance cost and new operational and functional capabilities

  • Intellectual Property upgrade solutions - These are solutions for effective transitioning of the existing control strategies, applications and Human-Machine Interface (HMI) to the new technology equipment

The upgrade solutions can be divided into:

  • HMI Upgrades

  • Controller Upgrades


Honeywell Modules

Honeywell Modules,Slm Controls Link Module,Io Control Module,Parallel Link Driver Module

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