Intel i5-3210M AW8063801032301 Manuale Utente
Codici prodotto
AW8063801032301
Datasheet, Volume 1
63
Power Management
4.6.6
Display Power Savings Technology 6.0 (DPST)
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.
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.
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.
method to interrupt hardware phase-in.
4.6.7
Automatic Display Brightness (ADB)
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.
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.
4.6.8
Seamless Display Refresh Rate Switching Technology
(SDRRST)
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 implementations of Intel DRRS:
static and seamless. The static Intel DRRS method uses a mode change to assign the
new refresh rate. The seamless Intel DRRS 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.
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 implementations of Intel DRRS:
static and seamless. The static Intel DRRS method uses a mode change to assign the
new refresh rate. The seamless Intel DRRS 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.