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Troubleshoot, find support articles, run tests with the support app directly on your phone.
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What is optimized backlight

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Talent
Message 1 of 19
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Message 1 of 19

What is optimized backlight

I been puzzle by it. Don't know what exactly what it dose. Can't seem to notice any difference when enable or disable. How it achieve display power saving? What is the effect to display when enable?
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Sony Xperia Support
Message 5 of 19
15,718 Views
Message 5 of 19

Re: What is optimized backlight

Optimized backlight is based on the CABL (Content Adaptive Backlight Control [also referred to as CABL]) technology which is implemented in the display. CABL adjusts the backlight dynamically based on the content being displayed. The basic idea is that by making the displayed image brighter, you can reduce the backlight and still get the same net result when the image is viewed on the display. Backlight consumes a lot of power, so reducing the backlight by turning on Optimized backlight reduces the battery consumption.

18 REPLIES 18
Master
Message 2 of 19
13,008 Views
Message 2 of 19

Re: What is optimized backlight

Are you referring to the 'adapt to lightning conditions' under the brightness setting? 

 

When you have that option activated the display adapts the brightness to the surroundings which can save battery because it lower the brightness in dark surroundings. 

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Talent
Message 3 of 19
13,004 Views
Message 3 of 19

Re: What is optimized backlight

Under Setting -> Display-> Optimized Backlight , this option if off will cause long boot up with backlight on continually. Resolve it by turn back on this options and reboot.

Talent
Message 4 of 19
12,961 Views
Message 4 of 19

Re: What is optimized backlight

Dear Sony,

 

Are you not able to answer me on this simple question regarding a feature on your phone? or please point out reference so i can read.

 

Thank you.

Highlighted
Sony Xperia Support
Message 5 of 19
15,719 Views
Message 5 of 19

Re: What is optimized backlight

Optimized backlight is based on the CABL (Content Adaptive Backlight Control [also referred to as CABL]) technology which is implemented in the display. CABL adjusts the backlight dynamically based on the content being displayed. The basic idea is that by making the displayed image brighter, you can reduce the backlight and still get the same net result when the image is viewed on the display. Backlight consumes a lot of power, so reducing the backlight by turning on Optimized backlight reduces the battery consumption.

Talent
Message 6 of 19
12,835 Views
Message 6 of 19

Re: What is optimized backlight

Thank you very much. JOHAN.
Talent
Message 7 of 19
12,740 Views
Message 7 of 19

Re: What is optimized backlight

Previous firmwares must be all messed up with CABL micro controller output settings so it caused sod and what's funny is that it's stated that .257 firmware has better battery consumption when CABL by itself is a better battery consumption. I guess the function is still there we just don't have an option to switch it off, playing with backlight wasn't a good idea
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Regular
Message 8 of 19
12,622 Views
Message 8 of 19

Re: What is optimized backlight

I had upgrading my Xperia Z Ultra into 14.1.B.2.257, and there are no Optimized Backlight...

Talent
Message 9 of 19
12,605 Views
Message 9 of 19

Re: What is optimized backlight

That is because before that version, if you play with that option will cause some serious problem like mentioned before.

 

I think they hide it from user until it fix all issue.  FYI, currently that option even not show, it is ON by default now in new firmware. 2.257

Message 10 of 19
11,255 Views
Message 10 of 19

Re: What is optimized backlight

After updating to 14.2 it will be showed.