2023-07-24 09:21:00
Samsung Display and LG Display are developing OLED panels with a low refractive index protective layer. The technology works like this: An extremely thin protective layer is applied over the cathode to reduce light loss caused by reflection from nearby electrodes.
Currently, the cover layer has a high refractive index, but by adding a low refractive index layer, it is possible to further reduce light loss, improving luminous efficiency, energy efficiency and product life. This addition can increase the cost and complexity of OLED panels.
Last year, Samsung launched OLED Eco 2 panels, which are more energy efficient, being used in the Galaxy Z Flip 4 and Galaxy Z Fold 4.
LG employs a similar technology called MLA (Micro Lens Array) in its large-size OLED screens for televisions. This layer, composed of numerous convex lenses, gathers the light emitted by the emitting layer and prevents unwanted reflections. Consequently, OLED screens with MLA are able to provide a 20% higher brightnessusing the same amount of energy.
According to TheElec, Samsung Display and LG Display are in negotiations with their biggest customers, Apple and Samsung MX (smartphone division). If they agree to use OLED panels at higher costs, companies can develop OLED panels for phones, tablets and even laptops.
Dongjin Semichem, Hodogaya, Labto and PNH Tech are the companies involved in creating CPL layers for OLED panels. Dongjin Semichem, Hodogaya and Labto are already in talks with Samsung Display, while PHN Tech is part of LG Display’s supply chain. These smaller companies specializing in OLED materials have already sent samples to LG Display and Samsung Display.
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#Samsung #developing #OLED #energyefficient #smartphones
