Title

Micro LED

Micro LED, miniaturizing and matrix LED backlight, is dedicated to driving inorganic self illumination (self illumination) separately, making product lifespan longer. The size is small, and the length of the main LED chip is about 1-10 μ m. Only 1% of LED, through large-scale transfer technology, μ M-level three color RGB Micro LED is transferred onto the substrate to form various sizes of Micro LED displays.

Advantages of Zhongke Micro LED Products
1. High brightness, low power consumption, ultra-high resolution, and color saturation
2. Almost no light consumption, long lifespan and stability
3. The material has good stability and no image imprinting
4. High speed response, high-speed modulation, signal carrying, with visible light wireless communication function
5. Adapt to various sizes
6. Micro LED micro displays emit light without the need for external light sources, saving costs
7. Seamless splicing
8. Wide application scope

Micro LED display screen

Comparison of LCD/OLED/Micro LED Display Structures and Power Consumption

Comparison of structure and power consumption

The characteristics of Micro LED

Comparison of features and applications

micro-LED

Traditional LED

Typical Device Preparation Characteristics

Typical size 1-100 microns, array preparation, integrated with driver

Typical size of 300-1000 microns, high power

external quantum efficiency

Working at low current density: relatively low
Working at high current density: relatively high

Working at higher current density: relatively low

reliability

Targeted for display applications, higher than traditional LCD and OLED displays; For communication applications, with good reliability at current densities up to kA/c ㎡

Targeted at lighting applications, higher than traditional lighting equipment

Optoelectronic modulation bandwidth

Hundreds of MHz to>1 GHz

Generally 5-20 Mhz

Compared to traditional LED displays, the main difference between Micro LEDs is:
1. An increase of tens of times in precision
2. The integration process has shifted from direct insertion, surface mounting, COB packaging, etc. to "massive micro transfer"
3. The repairability of defects is almost zero
4. The backplane has evolved from a printed circuit board to a TFT substrate used for LCD and OLED displays, or a monocrystalline silicon substrate used for CPUs and memory. Compared with traditional LED displays, Micro LEDs are different in every aspect such as grain size, packaging, integration process, backplane, and driver.

Massive Transfer

Micro LED Market Outlook

Micro LED has two major application directions
One is the wearable market
The second is the market for large-sized televisions OLED and Micro LED have significant advantages over LCD in various functional indicators (PPI, power consumption, brightness, thinness, color rendering index, and flexible panel adaptability). Although LCD panels have a longer application time, higher supply chain maturity, and price advantages, they will inevitably be replaced by OLED and Micro LED in the future. OLED and Micro LED are both futuristic display technologies, and there is a significant gap between the two from an industrial practice perspective. Micro LED performs better than OLED in terms of performance. Micro LED is a technology that transfers a large amount of micro level Micro LED onto a substrate, similar to miniature outdoor LED displays. Each Micro LED is located and can be individually driven to light up. Compared to OLED, it is more energy-efficient and has a faster reaction speed. OLED is thinner and displays clearer than LCD, but to save power, it is necessary to reduce the high brightness display and white screen, which can affect visual performance. Micro LED technology has broken through the limitations of OLED, with higher brightness and saturation compared to others. In addition, OLED materials are organic light-emitting diodes, which naturally cannot be compared with organic light-emitting diodes such as Micro LEDs in terms of service life. Micro LEDs are more competitive in applications that require lifespan, such as automotive head up displays and large screen projectors.

In the short term, the Micro LED market is focused on ultra small displays. In the medium to long term, the application areas of Micro LEDs are very extensive, spanning wearable devices, large indoor and outdoor displays, head mounted displays (HUD), head up displays (HUD), taillights, wireless communication Li Fi, AR/VR, projectors and other fields. At present, the AR/VR market is gradually expanding, and the requirements for panels are also increasing. Old LCD and OLED displays can no longer keep up with the increasing market demand. As this demand becomes increasingly urgent, manufacturers will inevitably seek new screen display technologies to replace existing LCD or OLED displays, and this new technology Micro LED can precisely meet the requirements.

Micro LED application field

Market applications: ultra small displays, wearable devices, large indoor and outdoor displays, head up displays (HUD), head up displays (HUD), taillights, wireless optical communication Li Fi, AR/VR, projectors and other fields.