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--- screen_manufacturing [2026/04/15 17:38] – [8. encapsulation] antoine
+++ screen_manufacturing [2026/04/16 09:28] (current) – [8. encapsulation] antoine
@@ Line 36: / Line 36: @@
 ### 8. encapsulation
-Since OLED devices are really sensible to moisture and oxygen, encapsulation process is really important to maintain a long lifetime. The are multiple encapsulation technologies :
+OLED devices are highly sensitive to moisture and oxygen. They require a water vapour transmission rate (WVTR) of less than 10<sup>–6</sup> g/m²/day. For this reason, the encapsulation process is crucial for maintaining a long lifetime. There are multiple encapsulation technologies:
 {{ ::classification_of_encapsulation_technologies.png?400 |}}
+The use of these technologies depends on multiple parameters of the screen.
+####Frit-seal
+{{ :frit-sealed_structure.png?400 |}}
+{{ ::frit-seal_process.png?400 |}}
+This method can't be used for large or flexible screens.
+####Face-seal
+{{ ::face-seal_structure.png?400 |}}
+{{ ::face-seal_process.png?400 |}}
+This method is used for large rigid screens.
+####Thin-Film Encapsulation
+{{ ::tfe_process.png?400 |}}
+{{ ::tfe_structure.png?400 |}}
+This method can be used for flexible screens.
+Sources : ([https://www.wiley.com/en-es/Flat+Panel+Display+Manufacturing-p-9781119161363|Flat Panel Display Manufacturing])
 ### 9. assembly
 ### 10. testings