Brightness display comes on by itself and won't turn off

To increase the brightness, either swipe up from the bottom to get the control panel, and increase the brightness there (slide the slider just below the 5 circles to the right) or go into Settings > Display and Brightness> Increase brightness using slider. You can also turn on the auto brightness from here if it is off, or turn it off if it is not working like you want it to.

laptop ot desktop monitor ?

Adjust your monitor's brightness and contrast

You can adjust the brightness and contrast of your monitor to improve the readability of text and to make digital pictures appear more like they'll look when printed.

To improve the results when adjusting the brightness and contrast settings for your display, use Display Color Calibration. (Display Color Calibration helps you adjust these color settings and others.)

The way you adjust brightness and contrast varies and depends on your specific display.

Brightness and contrast buttons on the front of the monitor.

Some monitors have brightness and contrast controls on the front and use the standard symbols shown in the following image.

Brightness and contrast symbols

On-screen menu. You can change the brightness and contrast settings for some displays by using an on-screen menu, and then setting the brightness and contrast in the resulting menu. Many times, you can view the on-screen menu by pressing a button-possibly labeled Menu-on the front of the monitor.

Laptop display. Laptop displays don't have brightness or contrast buttons on the front.

For a majority of laptops, there isn't a control for setting the contrast.

However, you can set the brightness of many laptops by pressing and holding the Fn key, and then pressing a function key to decrease brightness ( ) or increase brightness ( ).

http://windows.microsoft.com/en-US/windows7/Calibrate-your-display#

When using Display Color Calibration on a laptop, set the display to the maximum brightness setting.

Adjusting brightness automatically using adaptive brightness

Adaptive brightness is a feature in Windows that uses a light sensor to automatically adjust the display brightness to match the lighting conditions in your computer's surroundings.

To use adaptive brightness, you must have light sensors installed and enabled on your computer.

To determine if your laptop or computer monitor supports adaptive brightness, look for the Enable adaptive brightness setting in Power Options (mentioned in the following procedure) or check the information that came with your computer.

To turn adaptive brightness on or off

Open Power Options by clicking the Start button , clicking Control Panel, clicking System and Security, and then clicking Power Options.

Under any plan, click Change plan settings.

Click Change advanced power settings.

In the list, expand Display, and then expand Enable adaptive brightness.

To turn adaptive brightness on or off when your computer is running on battery power, click On battery, and then, in the list, click On or Off.

To turn adaptive brightness on or off when your computer is plugged into an outlet, click Plugged in, and then, in the list, click On or Off.

Click Apply. Click OK.

hope this helps

The following applies to Acer Laptops...

If the power indicator is lit but nothing appears on the screen - The computer's power management system automatically blanks the screen to save power. Press any key to turn the display on.
If pressing any key does not turn the display back on, check the following....
1. The brightness level might be too low. Press Fn and the right cursor key to increase brightness level
2. Display device might be set to an external monitor. Press Fn and F5 to toggle to the internal display
3. Backlight might be turned off. Press Fn and F6 to turn on the backlight.
4. If the Sleep indicator is lit, the computer is in Sleep mode. Press & release power button to resume.

The following applies to Acer Laptops. You did not specify the brand of laptop you had. If your laptop is not Acer, the specific keys mentioned may be different and you should adjust accordingly.

If the power indicator is lit but nothing appears on the screen - The computer's power management system automatically blanks the screen to save power. Press any key to turn the display on.
If pressing any key does not turn the display back on, check the following....
1. The brightness level might be too low. Press Fn and the right cursor key to increase brightness level
2. Display device might be set to an external monitor. Press Fn and F5 to toggle to the internal display
3. Backlight might be turned off. Press Fn and F6 to turn on the backlight.
4. If the Sleep indicator is lit, the computer is in Sleep mode. Press & release power button to resume.

Is it equipped with auto dimmer sensor? When it sees oncoming headlights it would dim the brights automatically.

Hello,

Try this

Function Keys Fn+F1 - Places the computer into sleep mode
Fn+F2 - Changes the (I-Powerxross) power settings
Fn+F3 - Switches display modes: LCD only, External monitor only, LCD+External Monitor
Fn+F4 - Turns Wireless LAN on/off
Fn+F5 - Switches OSD (on screen display) on/off
Fn+F6 - Turns the Touchpad on/off
Fn+F7 - Turns the Webcam on/off
Fn+F8 - Mute Sound
Fn+F9 - Reduces speaker volume
Fn+F10 - Increases speaker volume
Fn+F11 - Reduces the screen brightness
Fn+F12 - Increases the screen brightness
Fn+Esc - Toggles Bluetooth & 3G on/off (optional)

Thanks

Turn the display brightness knob (the one up by the speedometer) down. When the brightness knob is at max the navi will not go into night mode. This information is in the manual buried somewhere.

service your monitor your monitors cadr is problem

.well i had the same problem but my dad fixed it.
.he opened the monitor [like unscrew it.] and just clean it. brush it. and it will work fine.
if it didnt i dont know.