Character LCD Modules COG category classification of corrosion phenomena

According to industry corrosion occurs, COG type LCD corrosion phenomenon occurs mainly in the following four categories:

1, com electrode corrosion phenomenon of the corrosion of ITO on the screen at the edge, if observed under the microscope, it is found that corrosion of parts of the dirt present. OLED Display

2, ACF ACF corrosion under the following corrosion, the corrosion phenomenon generally occurs in the ACF under control terminal electrode and observed no obvious dirt, higher voltage V0 and VOUT prone, is generally hot and humid in the power to do trial discovery.

3, crevice corrosion of the electrode crevice corrosion, the corrosion phenomenon occurs in cracks at from under the microscope, cracks at the presence of black material. May be the mechanism which produces the cleaning is not clean, or the composition of the cleaning solution with a great relationship.

4, COG electrode surface corrosion: corrosion on the ITO electrode surface, showing a point of corrosion, other normal position, this position can be seen corrosive contaminants. TFT Display Module