About LED- Part Two


Today the topic is about LED wafer.

1. The Role of LED Wafer

LED wafer is the main raw material of LED, and LED mainly relies on wafer to shine.

2. The Composition of LED Wafer

There are mainly arsenic (As), aluminum (Al), gallium (Ga), indium (In), phosphorus (P), nitrogen (N) and strontium (Si), these several elements of the composition.

3. The Classification of LED Wafer

-Divided to luminance:
A. General brightness: R, H, G, Y, E, etc
B. High brightness: VG, VY, SR, etc
C. Ultra-high brightness: UG, UY, UR, UYS, URF, UE, etc
D. Invisible light (infrared) : R, SIR, VIR, HIR
E. Infrared receiving tube: PT
F. Photocell: PD

- Divided by components:
A. Binary wafer (phosphorus, gallium) : H, G, etc
B. Ternary wafer (phosphorus, gallium, arsenic) : Sr, HR, UR, etc
C. Quaternary wafer (phosphorus, aluminum, gallium, indium) : SRF, HRF, URF, VY, HY, UY, UYS, UE, HE, UG


LED wafers in the production and use process should pay attention to electrostatic protection.


LED Panel: LED is Light Emitting Diode, abbreviation LED.
It is a display mode by controlling semiconductor light-emitting diode, used to display text, graphics, images, animation, market, video, video signal and other information display screen.
LED display is divided into graphic display and video display, which are composed of LED matrix blocks.
The graphic display can synchronize with the computer to display Chinese characters, English text and graphics.
The video display is controlled by a microcomputer, with both text and image, and can broadcast all kinds of information in a real-time, synchronous and clear way of information transmission. It can also display 2D, 3D animation, video, TV, VCD program and live situation.
LED display screen bright color, three-dimensional sense is strong, quiet as oil painting, moving as movies, widely used in stations, docks, airports, shopping malls, hospitals, hotels, banks, securities market, construction market, auction houses, industrial enterprise management and other public places.

Its advantages: high brightness, low working current, low power consumption, miniaturization, easy to match with integrated circuit, simple drive, long life, impact resistance, stable performance.


Post time: Jan-28-2021

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