[Display Stripper] A key material in the display manufacturing process

Display panel products have applications in a wide range of fields, including mobile devices such as mobile phones, game consoles, and cameras, as well as monitors and TVs.

The TFT, the transistor of the display, controls the brightness of the pixels composing the display screen through an electronic circuit.
When the photoresist applied on a TFT substrate encounters light, it has a tendency to change its chemical properties.

Applying this trait, circuit patterns are created by distinguishing the parts to be used as circuits and those not to be used as circuits.

To achieve this, a photomask, which separates the electronic circuit pattern from other parts, is layered on top of the photoresist.

When it is illuminated, the parts that are lit and not lit exhibit different characteristics.

Then, only preserving the deposition material that acts as the material for the circuit, the photoresist that has completed its job is removed using a display stripper.

The number of manufacturing processes has increased as display semiconductor devices have become ultra-integrated.

The amount of residues and contaminants that remain on the surface after each process has also increased, further highlighting the importance of the cleaning process.

It is no exaggeration to say that at least 20% of the display manufacturing process consists of cleaning and surface treatment processes to prevent contamination of the substrate.
The display stripper is a key process material in the display manufacturing process because the failure to remove the photoresist completely leads to product defects. 
LG Chem will contribute to improving the quality of cutting-edge displays by enhancing the technological edge of display strippers.