Introduction To The Manufacturing Process And Purpose Principle Of Lcm LCD Module

- Jul 13, 2018-


module display--第一张图.jpg


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

Assy---Assembly: Assembly

B/Z------Bazel: iron frame

Bonding: Pressing

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.

Front Array:

1, film 2, yellow light 3, etching 4, stripping film

Middle Cell:

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