220 inch multimedia COB all-in-one machine

Product Features: The COB smart all-in-one machine is an intelligent device that integrates advanced COB (Chip On Board) technology and has significant advantages in display, interaction, etc

Product Features

The COB smart all-in-one machine is an intelligent device that integrates advanced COB (Chip On Board) technology and has significant advantages in display, interaction, etc. The following are its characteristic advantages:

Excellent display effect

Ultra-high definition COB technology directly packages LED chips on the substrate, significantly reducing the pixel pitch and achieving seamless splicing, presenting ultra-high-definition images and almost eliminating graininess. For instance, the HKC 163-inch COB all-in-one machine adopts a 0.9mm ultra-small dot pitch technology, achieving 4K pixel-level clarity with sharp and clear image details.

Outstanding color performance: It features high color saturation and contrast, accurately reproducing true colors. The high-blackening packaging process can reduce the noise in the picture, enhance the saturation, and make the video display clear and pure.

High brightness and uniformity: With high brightness and uniform light distribution, it can ensure clear visibility of the picture under different ambient lights and is suitable for various scenarios.

Stable and reliable performance

Low power consumption and energy saving: COB packaging technology and optimized circuit design reduce energy consumption. Some products are 30% more energy-efficient than traditional display devices, which is in line with the concept of green environmental protection.

Long service life: Reduce the contact between the chip and the outside world, lower the risk of damage, enhance stability and durability, and effectively avoid the problem of light attenuation caused by long-term use.

Strong anti-interference ability: Excellent electromagnetic shielding performance reduces external interference and enables stable operation even in complex electromagnetic environments.

The interactive experience is superior.

Sensitive and precise touch: It adopts a high-performance touch screen, featuring high touch sensitivity and fast response speed. It supports multi-touch, ensuring smooth operation and precise writing, annotation and other operations without delay.

Intelligent interaction function: Integrated with artificial intelligence technology, such as AI facial intelligent recognition, which can automatically identify the identities of participants and achieve quick sign-in. Intelligent voice recognition enables users to complete operations through voice commands, such as adjusting volume and switching screens.

Advantages of integrated design

Highly integrated: It integrates functions such as display, audio, video, and control, and combines various traditional meeting room equipment, such as projectors, screens, and audio systems, reducing equipment complexity, saving space, and lowering operation and maintenance difficulties.

Lightweight and aesthetically pleasing: The appearance design pursues lightness and thinness. For instance, the HKC all-in-one machine has a thin and light box and adopts a frameless design, which is both beautiful and fashionable, and can better blend into various environments.

The application scenarios are extensive.

In the field of education: Facilitating smart classrooms, presenting teaching content clearly and vividly, touch interaction for convenient interaction between teachers and students, and enhancing teaching effectiveness.

Business Office: Meeting the meeting needs of enterprises, functions such as wireless screen projection, video conferencing, and document presentation enhance meeting efficiency and achieve efficient collaborative office work.

Commercial display: In shopping malls, exhibitions and other places, display product information and promotional content to attract customers' attention.


Product parameters


Screen Size220-inch
Dot Pitch(mm)0.78 0.93 1.25 1.56 1.87 2.5 
PixelReal Pixelcombination of real and imaginary
Lamp Panel Size(mm)150*168.75300*168.75
Resolution192*216320*180240*135192*108160*90120*68
Scanning Method1/541/541/601/271/541/451/40
Surface Hardness4H
Surface ProcessMatte finish
Display unit size(mm)600*337.5*35.5
Screen size(mm)4800*2700
Display Unit Weight~4kg
Unit Resolution768*432640*360480*270384*216320*180240*136
Pixel density/m1638400 1137777 640000 409600 284444 161186 
Screen Resolution4608*25923840*21602880*16202304*12961920*10801440*816
Circuit SchemeCommon cathode circuitCommon anode circuitCommon cathode circuit
Flash calibration memorySupport
Control SystemNova
White Balance BrightnessStandard 600nits1200nitsStandard 600nits
Refresh Rate3840Hz
Contrast Ratio10000:1
Colour Temperature9300K
Viewing Angle160°
Input VoltageAC100-240V50/60Hz
Single-box powerAbout75WAbout 75WAbout70W120W 70WAbout56WAbout56W


Recommended Product