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Questions tagged [backlight]

A backlight is a form of illumination used in liquid crystal displays (LCDs) used in mobile, calculators and TV sscreens.

A backlight is a form of illumination used in liquid crystal displays (LCDs). As LCDs do not produce light by themselves (unlike for example Cathode ray tube (CRT) displays), they need illumination (ambient light or a special light source) to produce a visible image.

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How to change backlight color of 2x16 LCD display

I am using 2x16 LCD display with 16 header pins with Raspberry Pi 3 .To display messages I installed and configured Adafruit Char LCD library. and it works fine. currently default backlight color is yellow, so I want to change it to other colors…
Manorama
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LCD Backlight does not work anymore : Android

When pressing the Android power button, the lcd backlight turn on and off. But from past one day, my lcd backlight does not turn on. After pressing like 15 to 20 times, the backlight turn on for a few minutes and then it again goes off. When I was…
Nagendra Singh
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Turning on/off Phillips Android 7100 TV backlight/ambilight

I've been trying to code a simple Android app that just turns on and off the Phillips Android 7100 TV backligth/ambilight. To achieve this, I have considered the following possibilities: Use the Phillips SDK Use a generic native Android TV…
Maximiliano Ejberowicz
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J2ME while running app backlight never turns off

I'm developing a java mobile application. My problem is that while the app is running the backlight never turns off or the cellphone goes to sleep. I would like to know if there is a way to force the backlight to turn off or how to handle IDLE time…
Daniel Castro
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Call xbacklight through API

Does there exist an API for the xbacklight utility? I'd like to make a graphical frontend in either C, C++, or Python, but I can't find any documentation. My only guess at integration at this point would be making a call to system(), but I like to…
2mac
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How to make an android icon image edge be highlightened on clicking it

My problem is simple: how to make same android homescreen icon effect on clicking them? In other words how to make that temporary back lighting effect? In general how to implement android image buttons backlight effect that surround picture edge?…
Domenico Pacecca
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How do I control the brightness of the backlight in android immediately?

I'm working on an app that needs to turn on and turn off the backlight of the screen fast, very fast. Something like off for 10ms, and then on for +-1ms. I have tried to use this code with a handler and a runnable: fieldScreenBrightness.setFloat(lp,…
valka
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Dim iPhone back light on upside down

I have seen on an iOS application 'Sleep Cycle Alarm Clock' that when the iPhone is facing screen down (towards the floor) they have managed to dim the back light of the screen. I have been searching all over the internet and can't find the API that…
Adam Waite
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Laptop Backlight turms off after instaling intel vga drivers ( windows )

uestion shifted to superuser form
Ankur Kumar
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im on MacBook pro mid 2014, and I wanted to install smth for my keyboard but I got this error:

Last login: Sat Aug 26 16:51:22 on ttys000 Tiffany@daynos-macBook-pro ~ % 'chmod +x ~/Downloads/led-backlight-cmstorm' zsh: no such file or directory: chmod +x ~/Downloads/led-backlight-cmstorm the link for it is :…
dayno
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