diff options
Diffstat (limited to 'content/2023/pulse-width-modulation-on-oled-screens.md')
| -rw-r--r-- | content/2023/pulse-width-modulation-on-oled-screens.md | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/content/2023/pulse-width-modulation-on-oled-screens.md b/content/2023/pulse-width-modulation-on-oled-screens.md deleted file mode 100644 index 5b5d654b..00000000 --- a/content/2023/pulse-width-modulation-on-oled-screens.md +++ /dev/null @@ -1,15 +0,0 @@ ---- -title: "Pulse Width Modulation on OLED Screens" -category: "hardware" -abstract: OLED flickers and some of us want to rip their eyes out -date: 2023-02-23T15:13:20+01:00 -year: 2023 -draft: false -tags: -- OLED -- PWM -- mobile-phones ---- -Today I've learned about PWM (Pulse Width Modulation) on OLED screens. It turns out that brightness changes don't apply to individual pixels - they always shine at 100%. So instead, what happens is that unless we set the brightness to 100%, the device rapidly switches off and on again backlight of the screen. - -We are talking about hundreds of hertz, and there is [math to understand](https://en.wikipedia.org/wiki/Pulse-width_modulation), but some people can see the flickering and are therefore unable to use OLED screens. |