LCD (Liquid Crystal Display, Chinese abbreviated as liquid crystal display), the main principle is to stimulate the liquid crystal molecules to generate dots, lines, and surfaces with the back light tube to form a picture. At present, common liquid crystal display devices are TN, STN, DSTN and TFT. The basic manufacturing principles of the first three are the same. They become passive matrix liquid crystals, while TFT is more complicated. Because of its retention, it is called active matrix liquid crystal. It has the advantages of small space, thin panel thickness, light weight, flat right-angle display, low power consumption, no electromagnetic wave radiation, no heat radiation, etc., making it gradually replace the traditional CRT video tube monitor.
Here are some basic knowledge questions and answers about LCD screens:
1: What are several generations of factories?
The definition of the third, fourth, and fifth generation factories mainly comes from the length and width of the glass substrate. The later generations, the larger the area. After the same process, the larger the substrate area, the more TFT-LCD can be cut. LCD panels can effectively reduce manufacturing costs after reaching economic scale.
2: Knowledge about LCD panels?
I. Backlight group
II. Polarization group
III. Glass substrate and thin film crystal (TFT liquid crystal molecule group)
IV, color filter group
3: What is HDTV (High Definition TV)?
(High-DefinitionTelevision.)
Belongs to one of Advanced TV (Advanced TV or ATV).
A video system that is more advanced than the current TV standards in all aspects, with a resolution of 720p or above 1080i, Dolby
The highest ideal of AC3 digital channel sound is to provide the image quality of nearly 35 cm film.
High-resolution TV is usually used interactively with digital TV. The former is transmitted by analog and digital signals, but the latter is only transmitted by digital signals.
High-resolution TV will become more and more widespread due to the distribution of optical fiber facilities and digital satellites. The current high-resolution TV screen ratio standard is 16:9, which is wider than the current 4:3 TV.
4: What is liquid crystal?
The liquid crystal display uses liquid crystal materials to display images. The liquid crystal display is also known as the LCD (Liquid Crystal Display) screen. The main material of the liquid crystal panel is liquid crystal.
5: What is an LCD Panel?
A liquid crystal display is composed of a liquid crystal panel, a power supply module, a control module and a casing. The liquid crystal panel is as important to the liquid crystal display as the video tube is to the traditional display and the CPU is to the computer.
