LED display professional terminology interpretation

LED: Light Emitting Diode：a light-emitting diode, is a light-emitting device made of solid compound semiconductor materials, which can convert electrical energy into light energy and emit light

Synchronous control system: also known as online operating system, mainly used for synchronous real-time display of images and videos. In the synchronous control system, the LED display screen plays the images of computer software or other video playback devices in real time

Asynchronous control system: also known as offline operating system, the operating system has a storage function, and the computer playback display information is stored in the system's memory through a digital interface. When the control system is powered on, the data in the memory is directly read for playback and display

Chroma: The property of color excluding brightness, which reflects the hue and saturation of the color

Color gamut: The color range that a display device can display, the percentage of a certain color space. In the same color space, the higher the color gamut, the wider the color range that a display device can display

Grayscale: The brightness level relationship between the darkest black and the brightest white of the display. For example, the grayscale of an LED display screen is 256 levels, which means that there are 256 from black to white. brightness changes

Frame rate: A measure of the number of displayed frames, measured in "frames per second" (FPS) or "Hertz" (Hz). Generally speaking, FPS is used to describe how many frames a video, electronic drawing or game plays per second. A high frame rate means smoother and more realistic video animation

Bit: Bit depth. "Bit" is the smallest unit in computer memory, which is used to record the color value of each pixel. The richer the color of the image, the more "bits". The number of bits used for each pixel in the computer is the "bit depth". For example, 8 bits means that each pixel can be colored with 256 (2 to the power of 8) possible red, green and blue colors, and mixing these colors together will produce 16,777,216 (256×256×256) different colors

SDI/DP/VGA/DVI/HDMI: various video interface standards or formats.
SDI (Serial Digital Interface), a digital component serial interface; DP (DisplayPort), a digital video interface standard developed by the PC and chip manufacturers alliance and standardized by the Video Electronics Standards Association (VESA); VGA (Video Graphics Array), a computer signal analog display interface standard;
DVI (Digital Visual Interface), a digital video signal display interface standard; HDMI (High Definition Multimedia Interface), a high-speed multimedia digital video and audio interface standard

RGB: A color standard in the industry, which is obtained by changing the three color channels of red (R), green (G), and blue (B) and superimposing them on each other to obtain a variety of colors

Ultra High Definition: Ultra High Definition stands for "Ultra High Definition", which is the next generation technology of HD (High Definition), Full HD (Full HD), and Quad HD (Eightfold HD). The "UHD" standard issued by the International Telecommunication Union (ITU) recommends that the display with a physical resolution of 3840×2160 or above be called ultra-high-definition, which is twice the width and height of Full HD (1920×1080) and four times the area

1080P: A display format with a resolution of 1920×1080

2K: A display format with a resolution of 2048×1080

4K: A type of ultra-high-definition standard with a resolution of 3840×2160 and a total number of pixels
that is 4 times that of Full HD

8K: A type of ultra-high-definition standard with a resolution of 7680×4320 and a total number of pixels
that is 16 times that of Full HD

HDR: High-Dynamic Range, high dynamic range images, compared to ordinary images, can provide more dynamic range and image details, and can better reflect the visual effects in real environments

Gamma: A special tone curve

Dot spacing: LED The center distance between two adjacent pixels on the display screen (in millimeters)

COB: Chip On Board, on-board packaging technology, that is, attaching the chip to the surface of the PCB substrate, and then connecting the module packaging technology with the substrate signal through wire bonding

Fixed installation: Display screen products that need to be installed in a fixed steel structure, generally composed of modules and simple support structures, without secondary disassembly and repeated use

ASIC: Application Specific Integrated Circuit, is: an integrated circuit designed and manufactured for specific user requirements and specific electronic systems

PCB: Printed Circuit Board, printed circuit board, is the support body of electronic components,
is the carrier of electrical connection of electronic components

Chip, IC: the abbreviation of Integrated Circuit, that is, integrated circuit, is a microelectronic device or component. Through a certain process, the transistors, diodes, resistors, capacitors, inductors and other components and wiring required in a circuit are interconnected together, made on a small piece or several small pieces of semiconductor wafers or dielectric substrates, and then packaged in a tube shell to become a microstructure with the required circuit function

SMT: Surface Mounted Technology, surface mount technology, is a kind of assembly technology that directly attaches and solders surface mounted components to PCB

THT: Through Hole Technology, is a kind of assembly technology that inserts leaded components into the circuit board and then solders and assembles them

IPD: Integrated Product Development, is a set of product development models, concepts and methods

UI: User Interface, user interface

LCD: Liquid Crystal Display, liquid crystal display

DLP: Digital Light Processing, this technology first digitally processes the image signal, then projects the light, and reflects it through the projection lens to form an image on the screen

OLED: Organic Light Emitting Diode, organic light-emitting diode, emits light by driving the organic film itself through current

Small pitch LED: LED display with a dot pitch of 2.5 mm to 1.0 mm

Mini LED: LED display with an LED chip size of 75-300μm

Micro LED: LED display with an LED chip size of less than 75μm