High-Definition Hybrid Stencil (FMM) for OLED Display Panel Deposition
High-definition hybrid stencil (hereinafter referred to as "FMM") for evaporation of OLED display panels are used to deploy the RGB colors of organic materials in the OLED display manufacturing process.
This FMM is a key component in OLED manufacturing, and higher precision (co-ordinate accuracy and definition) FMM is required.
EF2 technology can achieve high resolution of real RGB∗1 at 11000ppi.
∗1 Real RGB: The term "real RGB" is used to distinguish a method that displays pixels faithfully using cells of Red, Green, and Blue from a method that displays pixels pseudo-naturally by skipping light-emitting cells.
Compared to the etching method, the stencil openings formed by our proprietary electroforming method can accommodate high precision (fine processing) (etching ∼400ppi, electroforming ∼1000ppi). In our vapor deposition tests, we obtained results showing that the effective luminous area relative to the stencil opening width is also higher (1.6 times). When trying to achieve the same brightness in an EL display, the electroforming method can reduce power consumption compared to etching, leading to energy savings and CO2 reduction.
∗ Research by Maxell
Currently, widely used etched stencils made of Invar material require the frame and stencil to be bonded together at the micron level before use. However, Maxell's organic EL stencils are integrated with the Invar frame, eliminating the need for bonding and reducing the number of steps required by the user.
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