LED display advancement:

Advancedness:
Using COB packaging technology, ultra-high stability
COB is a multi-lamp integrated bracket-free packaging technology that directly packages the light-emitting chip on the PCB board, eliminating the cumbersome surface mounting process. Without the welding feet of the bracket, the LED chip and welding wire of each pixel are tightly encapsulated in the epoxy resin colloid, without any exposed elements, providing protection for the LED chip and solving the problem of damage to pixels caused by external factors. The pixel failure rate is extremely low during long-term use. Therefore, COB packaging technology provides ultra-high stability for micro-pitch LED displays, without the need to repair the lights.

Ultra-high contrast for perfect image quality
Contrast is a very critical indicator for artificially reproducing images. A high contrast is a necessary condition for obtaining satisfactory visual effects. The COB packaged micro-pitch LED display uses a high-quality ultra-black panel, which increases the proportion of black in the entire screen to more than 99%, thereby increasing the contrast of the display to 10000:1, achieving a qualitative leap, ensuring the color expression ability of the picture, and perfectly presenting exquisite high-definition images.

Smaller dot pitch, more detailed images
The micro-pitch LED display screen that uses COB packaging technology avoids the SMT reflow soldering that discrete devices must go through. The pixels do not require special pad space, and can achieve a smaller dot pitch, with more pixels per unit area, improving the resolution of the entire screen, displaying more content, and making the picture clearer and more delicate.

Eliminate moiré for more comfortable viewing
The COB packaged micro-pitch LED display screen adopts a high filling factor optical design, with uniform light emission, similar to a "surface light source", and effectively eliminates moiré. Its matte coating technology also significantly improves contrast, reduces glare and glare, and effectively resists blue light damage. It not only reduces visual fatigue of the human eye, but also can take high-definition videos or photos under camera or camcorder shooting. It is particularly suitable for applications that require long-term viewing and screen shooting (such as lecture halls, studios, etc.).

Low brightness and high gray, perfect display of trillions of colors
Zshengt's COB packaged LED display uses high-end driver chips, which makes the display reach 16-bit high grayscale, and can display 281 trillion colors. The screen picture is more realistic, the colors are more brilliant, the restoration degree is higher, and the degree of compliance with the original image is higher. More importantly, the product also has the characteristics of low brightness and high gray, which ensures the minimum grayscale loss when the brightness is reduced. This allows Zshengt's COB packaged LED display to always present any picture perfectly and delicately under any circumstances.

High ChangeFrame rate, nanosecond response time 

COB packaged micro-pitch LED display screen adopts nanosecond display technology, which shortens the frame change time of LED display screen to an extremely short time, is compatible with 50Hz & 60Hz frame change frequency, eliminates the tailing and ghosting superposition phenomenon when LCD and projection process fast dynamic images, and ensures that the audience can see a coherent and clear image, which has great advantages in the field of video surveillance and broadcasting display.。

Adopt high standard CNC mold level processing technology and ordinary technology
High-standard mold-level processing technology is used, and the surface is smooth without bright or dark lines
Brand-new mold design, one-time die-casting, no deformation; modular installation structure, high-standard CNC mold-level processing technology, make the splicing error close to zero, make the screen flat without bumps, and eliminate bright and dark lines on the screen.

Point-by-point correction technology enhances picture quality
The point-by-point correction system will individually control each pixel in each display unit board, including its brightness and color control, to achieve unprecedented uniformity, so that thousands of LED pixels can achieve exactly the same luminous characteristics. The single-module brightness and chromaticity correction technology solves the problem of color difference and uneven brightness between the new module and the old module after the screen module is replaced.

Ultra-high refresh rate improves visual comfort
The COB packaged micro-pitch LED display has a refresh rate of no less than 3840Hz, and the captured image is stable without ripples or black screens. It can effectively solve the problem of tailing and blurring during fast-moving images, enhance the clarity and contrast of images, make the video images delicate and smooth, and not easily fatigued when watching for a long time; with the combination of anti-gamma correction technology and point-by-point brightness correction technology, the dynamic image display is more real, natural, and uniform.

NTSC broadcast-level color gamut, ultra-wide color temperature adjustable in steps
1. Adopting RGB three-primary color imaging technology, with ultra-wide color gamut, richer colors, and reaching broadcast-level standards;
2. After point-by-point brightness and chromaticity correction, the brightness and chromaticity of the screen can be kept highly consistent, without the need for secondary compensation, and the colors are high-fidelity;
3. Adopting the world's leading point-by-point correction technology and utilizing advanced green restoration and skin color restoration functions, it fully adapts to the human eye's perception of color and brings users a real sensory experience;
4. The color temperature can be adjusted from 1000K to 10000K, which can meet the color temperature requirements of various display applications, especially in studios and variety shows.

reliability:
Adopt COB packaging technology, truly fully sealed structure

COB packaging technology encapsulates pixels on the PCB board, achieving comprehensive sealing of the PCB circuit board, crystal particles, solder feet and leads. The surface is smooth and there are no exposed components, achieving full protection capability of IP65. The pixel surface is smooth and hard, and has anti-knock, anti-impact, anti-shock, anti-compression, waterproof, moisture-proof, dust-proof, anti-oil, anti-oxidation, anti-static and other properties. It is highly stable and easy to maintain. For daily cleaning and maintenance, surface stains can be directly wiped off with a damp cloth.

The pixel loss rate of the entire screen is less than one millionth
COB packaging technology avoids the reflow soldering process of surface mount SMT, and can use "low temperature welding processes" including hot pressing welding, ultrasonic welding, gold wire welding, etc., which makes the fragile semiconductor LED crystal particles not have to withstand the test of high temperature above 240 degrees, completely eliminates the damage to LED crystal particles caused by high temperature process, and minimizes the generation of bad points and dead lights in the production process. During use, due to the use of COB packaging technology, LED chips and other elements are completely protected in the colloid, completely eliminating the damage to pixels by collision, static electricity, temperature and humidity, pollution and other factors, so that the bad pixel rate and the whole screen out of control rate of COB packaged micro-pitch LED display are controlled below one millionth.

Stronger tolerance to high temperature and humid environment
It adopts one-piece anti-oxidation cast aluminum cabinet and the pixel points adopt a fully sealed structure to improve the product's temperature resistance, UV resistance and stress resistance.

Comprehensive protection, long service life
The brightness control level of the COB packaged micro-pitch LED display is ≥256, the brightness identification level is ≥20, the ground leakage current is ≤3.5mA/㎡, and it can withstand a test voltage of 50Hz, 1500V (AC effective value) for 1 minute without insulation breakdown. It adopts the UL94 V-0 flame retardant standard and has good flame retardant properties.
In addition, the COB packaged micro-pitch LED display has a protection level of IP65, a seismic level of 8, and an abnormal state protection function, which ensures the display unit has an average trouble-free working time (MTBF) of more than 50,000 hours and an ultra-long service life of more than 100,000 hours.

Safe and reliable power supply technology, no strong electricity on the screen
Zhongshengtang Optoelectronics' COB packaged micro-pitch LED display screen adopts advanced, safe and reliable strong and weak current separation power supply technology. The screen has a 48V weak current input and no strong current, ensuring the safety of users. It adopts a communication-grade power supply with a reasonable high and low voltage layout, making the screen run more stably and supporting hot-swap repairs without shutting down the screen, which is safe and fast. It supports power backup redundancy to ensure that the system is not affected by a single power supply failure. The failure rate is extremely low, and it is safe and reliable.

Power supply and signal redundancy backup function
The COB packaged micro-pitch LED display unit supports redundant power supply. When a power supply fails, it automatically switches to another power supply to ensure the normal operation of the equipment, thereby ensuring the safety of power supply. At the same time, the COB packaged micro-pitch LED display unit adopts a signal hot backup input method. Each unit control module automatically detects the integrity of the two input signals. When the integrity of the main input signal is good, the system defaults to the main input as the input source. When the main input signal is incomplete or the signal fails, the system automatically switches to the backup input signal, and the switching time is <0.5 seconds. Based on the design of power supply and signal redundant backup, the COB packaged micro-pitch LED display can meet the needs of high-security applications.

Ultra-stable and reliable, suitable for use at high altitudes
my country has a vast territory, with high terrain in the west and low terrain in the east, and a great difference in altitude. In order to support the construction of the western part of the country, Zshengt Zhongshengtang has conducted special research on the working current, working voltage, breaking capacity and protection characteristics of low-voltage electrical appliances when used in high-altitude areas, targeting the natural conditions of low air pressure and low temperature in the western high-altitude areas, and has raised the working altitude of the micro-pitch LED display to 5,000 meters, which can basically work normally in any existing urban environment.

Ease of use:
Ultra-wide viewing angle, perfect display at any angle
COB packaging adopts surface-like light emission, so the viewing angle is wider, making Zshengt Zhongshengtang COB packaging micro-pitch LED display screen have a vertical and horizontal bidirectional 170° ultra-wide viewing angle. Any viewing angle is the central viewing angle, and any angle ensures consistent color and brightness, with better optical diffuse color and light effect. The display coverage area is larger, ensuring that there is no dead angle or color cast at any angle, and the image can always be displayed perfectly.

Compatible with front and rear maintenance, multiple installation methods, suitable for any site
Zshengt Zhongshengtang COB package micro-pitch LED display screen adopts a design compatible with front and rear maintenance, which enables Zshengt Zhongshengtang COB package micro-pitch LED display screen to support a variety of installation methods, simple and efficient installation and maintenance, can be floor-mounted, hoisted, inlaid, and wall-mounted. Zshengt Zhongshengtang can design the best installation plan for users according to the space, shape and decoration design of the installation site, so that the display screen and the surrounding decoration are perfectly unified.

Passive cooling and ultra-quiet design, say goodbye to noise troubles

COB packaging technology is chip-level packaging. Since COB packaging is a granular crystal that is in direct and close contact with the PCB board, the "substrate area" can be fully utilized to achieve heat conduction and heat dissipation. In addition, Zshengt's unique internal cabinet component layout and heat dissipation structure, the use of cast aluminum shell passive heat dissipation, and fanless design make the display screen dissipate heat quickly and have low temperature rise. After the LED display screen reaches thermal equilibrium during normal use, the temperature rise of the metal part of the screen structure does not exceed 45K, and the temperature rise of the insulating material does not exceed 70K. At the same time, the fanless design reduces the noise of the display screen to 10dB; even if you get close, you can't hear any noise, and the equipment runs quietly.

Ultra-low bad pixel rate, low maintenance cost
The use of COB packaging technology allows the Zshengt Zhongshengtang COB packaged LED display screen to have a bad pixel rate and a full screen out of control rate of less than one in a million. The fanless design not only reduces noise but also reduces the number of failure points, ensuring that the screen will hardly incur any maintenance costs during use. This allows the screen to meet the strict requirements of 7×24 hours of continuous use, bringing users a more comfortable experience, easier after-sales maintenance, engineering technical maintenance and support.

First-class energy efficiency, low cost of use
Zhongshengtang Optoelectronics COB packaged micro-pitch LED display has a first-level energy efficiency rating and adopts COB packaging technology. Under the premise of emitting the same brightness, COB has smaller heat dissipation and is more energy-efficient. In addition, the high-efficiency PFC function switching power supply is used to power the LED. The switching power supply PF>0.97 has a higher photoelectric conversion efficiency, which reduces the energy consumption of the entire screen to a minimum. It can save 30% of energy consumption for customers, and users can use it without worrying about the power consumption of the screen; low energy consumption means lower cost of use, longer life and stability.

Intelligent brightness adjustment, adaptive environment
Zhongshengtang Optoelectronics' COB packaged micro-pitch LED display adopts unique intelligent brightness adjustment technology, with stepless brightness adjustment from 0 to 1000cd/㎡ (supports manual/automatic/software adjustment), and can automatically adjust the brightness according to changes in the surrounding light and darkness. These characteristics make the display comfortable and soft in any brightness environment, and it will not cause fatigue when watching for a long time. Whether it is day or night, sunny or cloudy, or in a relatively closed control room, conference room, or brightly lit exhibition venue, lobby, etc., Zhongshengtang Optoelectronics' COB packaged micro-pitch LED display can bring the most comfortable viewing experience to the audience with the most appropriate display brightness.

16:9 golden ratio design, point-to-point matching standard resolution
Zhongshengtang Optoelectronics COB package micro-pitch LED display adopts 16:9 golden ratio box size design, which is particularly suitable for standard combination resolutions such as 720P and 1080P, and can point-to-point match 2K/4K/8K standard resolutions, and is well compatible with various systems.
Extremely thin and light, saving space
Unlike surface mount products that are welded on the PCB board, which increases the thickness of the product, COB packaging directly integrates the light-emitting chip into the PCB board, reducing the thickness of the display board, integrated packaging, saving materials, fewer components, and reducing the weight of the module by more than 1/2, making the box unit thinner and lighter. The mounting bracket used is a special bracket, a standard product, with good stability, good splicing effect, simple installation, beautiful and light, exquisite and beautiful, light weight, easy to install and carry, and greatly saving the space occupied by the display screen.

Energy saving and environmental protection
LED is an energy-saving and environmentally friendly light source with high photoelectric conversion efficiency, low power consumption and radiation resistance, which enables Zshengt's LED display products to obtain RoHS environmental certification, FCC certification, and pass first-level energy efficiency testing.
The COB display uses large-chip light-emitting diodes, which can effectively improve the brightness, dissipate heat evenly, have a small brightness attenuation coefficient, and maintain good consistency after long-term use. Under the premise of emitting the same brightness, COB dissipates less heat and is more energy-efficient.