What is LCM LCD?
LCM (LCD Module) is an LCD display module and a liquid crystal module. It refers to a component that assembles a liquid crystal display device, a connector, a peripheral circuit for controlling and driving, a PCB circuit board, a backlight, and a structural member.
Common terminology for the manufacturing process of liquid crystal modules (LCM)
TFT-----Thin Film Transistor: Thin Film Transistor
CF-------Color Filter: Color Filter
LCD-----Liquid Crystal Display: LCD
TAB-----Tape Automatic Bonding: Loaded Package IC
PCB-----Printed Circuit Board: Printed Circuit Board
ACF-----Anisotropic ConductiveFilm: anisotropic conductive film
B/L------Back Light: backlight module
B/Z------Bazel: iron frame
Three stages of "front, middle and back" manufactured by TFT-LCD
As shown in the above figure, the latter module process is mainly the integration of the driving IC of the liquid crystal substrate and the printed circuit board. This part can transmit the display signal received from the main control circuit to the driving IC to drive the liquid crystal molecules to rotate and display the image. In addition, the backlight portion is integrated with the liquid crystal substrate at this point, and the complete liquid crystal panel is completed.
1, film 2, yellow light 3, etching 4, stripping film
5, alignment film printing 6, sealant coating 7, spray spacers 8, injection of liquid crystal 9, sealing combination 10, polarizer attached
Rear Module Assembly:
11, COG process 12, flexible circuit board compression 13, printed circuit board compression 14, backlight module assembly 15, aging test
Main structure diagram of liquid crystal module (LCM)
Lcm LCD module
Liquid crystal module (LCM) structure (profile view)
LCM LCD module