---
title: "Discussion on \"How OLED & LTPO Enable Always-On Displays\" | Hashnode"
description: "Discussion on \"How OLED & LTPO Enable Always-On Displays\". Understand the hardware behind always-on displays. See how OLEDs disable black pixels and LTPO tech drops refresh rates to 1Hz to prevent battery drain."
url: "https://hashnode.com/posts/how-oled-ltpo-enable-always-on-displays/6a25a4ed424dde540c15f4c1"
---

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# [How OLED & LTPO Enable Always-On Displays](https://doogal.dev/how-oled-ltpo-enable-always-on-displays?utm_source=hashnode&utm_medium=feed)

Understand the hardware behind always-on displays. See how OLEDs disable black pixels and LTPO tech drops refresh rates to 1Hz to prevent battery drain.

Jun 7 · 5 min read · doogal.dev  
Updated Jul 19  
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-   [#hardware](https://hashnode.com/tag/hardware)
-   [#smartphones](https://hashnode.com/tag/smartphones)
-   [#mobiledevelopment](https://hashnode.com/tag/mobiledevelopment)
-   [#techexplained](https://hashnode.com/tag/techexplained)

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