Intel 1005M AW8063801121200 User Manual

Datasheet, Volume 1

67

This is a mobile only supported power management feature.

The Intel DPST technique achieves backlight power savings while maintaining a good 
visual experience. This is accomplished by adaptively enhancing the displayed image 
while decreasing the backlight brightness simultaneously. The goal of this technique is 
to provide equivalent end-user-perceived image quality at a decreased backlight power 
level.

1. The original (input) image produced by the operating system or application is 

analyzed by the Intel DPST subsystem. An interrupt to Intel DPST software is 

generated whenever a meaningful change in the image attributes is detected. (A 

meaningful change is when the Intel DPST software algorithm determines that 

enough brightness, contrast, or color change has occurred to the displaying images 

that the image enhancement and backlight control needs to be altered.)

2. Intel DPST subsystem applies an image-specific enhancement to increase image 

contrast, brightness, and other attributes.

3. A corresponding decrease to the backlight brightness is applied simultaneously to 

produce an image with similar user-perceived quality (such as brightness) as the 
original image.

Intel

®

 DPST 5.0 has improved the software algorithms and has minor hardware 

changes to better handle backlight phase-in and ensures the documented and validated 
method to interrupt hardware phase-in.

This is a mobile only supported power management feature.

The Intel Automatic Display Brightness feature dynamically adjusts the backlight 
brightness based upon the current ambient light environment. This feature requires an 
additional sensor to be on the panel front. The sensor receives the changing ambient 
light conditions and sends the interrupts to the Intel Graphics driver. As per the change 
in Lux, (current ambient light illuminance), the new backlight setting can be adjusted 
through BLC. The converse applies for a brightly lit environment. Intel Automatic 
Display Brightness increases the back light setting.

This is a mobile only supported power management feature.

When a Local Flat Panel (LFP) supports multiple refresh rates, the Intel Display Refresh 
Rate Switching power conservation feature can be enabled. The higher refresh rate will 
be used when on plugged in power or when the end user has not selected/enabled this 
feature. The graphics software will automatically switch to a lower refresh rate for 
maximum battery life when the notebook is on battery power and when the user has 
selected/enabled this feature. There are two distinct Intel implementations: static and 
seamless. The static Intel

®

 Display Refresh Rate Switching Technology (Intel

®

 DRRS 

Technology) method uses a mode change to assign the new refresh rate. The seamless 
Intel

®

 Seamless Display Refresh Rate Switching Technology (Intel

®

 SDRRS 

Technology) method is able to accomplish the refresh rate assignment without a mode 
change and therefore does not experience some of the visual artifacts associated with 
the mode change (SetMode) method.