Apical technology overview for automotive

25 Pages·2013·2.62 MB·English

Apical technology overview for automotive
www.apical.co.uk

1
Apical Assertive Display
for in-car displays
Evolution of car displays
• Dashboard displays are getting bigger

• More driver information is migrating to the
display

• Richer UIs are the trend (thanks Tony!)

• More video/imagery is being displayed

• Personal multimedia displays for passengers
are becoming more common
3
In sunlight, the display is
never bright enough
• It is hard to compete with
the sun’s intensity with an
LED backlight!

• Screen reflections make
pixels disappear

• Impossible to maintain high
contrast
4
At night, the display is
usually too bright
• Human eye sensitivity
adapts over many orders of
magnitude

• A too-bright display is highly
distracting and causes
eyestrain

• Ambient light sensors are
far from accurate
5
What’s the use of a good camera
if you can’t see the video?
Capture can be very Display can be very
high dynamic range low dynamic range
HDR scene HDR camera In-car display

Contrast 100,000:1 Contrast 100,000:1 Contrast 1000:1 –best case

Contrast <100:1 –typical
6
Problem statement
Display contrast ratio is affected
independently from the bright
and dark ends of the range

Display contrast ratio must be
adapted independently
Full Reduced Reduced
brightness brightness brightness
Dark room Dark room Bright room
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What is Apical’s Assertive Display?
Assertive Display is a display management subsystem which addresses
the two most important problems for mobile displays:

Display power can be reduced by up to 50%

Multimedia can be viewed even in bright sunlight

Assertive Display operates with all current screen technologies, and
can be calibrated to the specific screen response characteristics
8
Watch a movie in any conditions
Assertive Display:
Display at max brightness:
Content adapted to display contrast ratio
contrast ratio too low for multimedia
Same power consumption
Sample conditions: Ambient light 1400 lux –indoors in daylight
9
In-car entertainment systems using ASIC
with Assertive Display (first-generation*)
Contrast Live
It prevents the part where crushed black and white flying visual contrast "live"
feature. Different parts of the video will automatically compensate for brightness
and color to nature. It may also be considered in the cabin to enjoy images in any
situation. Sometimes it is hard to see the video is dark black crushed. CYBER If, however,
Before correction newly developed "Advanced Active Contrast" by automatically adjusting the image
in pixels. And general coordination of the entire screen, unlike the audience realized

the scene without skipping a mixed light and dark in color.

After correction
※ published photograph, which was clearly effective, and will vary
First introduced in model X088 (2010) First introduced in Cybernavi AV_ZH (2010)
* Latest is Gen 3