1. By
Siri Chandana S
12071A0550

2.  What’s PenTile?
 History
 Samsung’s PenTile- Nouvoyance
 Layouts of PenTile
 Sub pixel Image Reconstruction
 PenTile Vs RGB
 Rendering characters captured
Contd..

3. Applications of PenTile
Advantages
Disadvantages
Future of PenTile
Conclusion
Bibliography

4. PenTile matrix is a family of patented sub-
pixel matrix schemes used in electronic
device displays.
The sub-pixel layouts consists of the Red-
Green-Blue stripes of panels.

5. Developed in early 1990’s.
 A Greek word where pen equals penta.
Inspired by human retina.
Green forms the bright spots.
Red and blue form the dark spots.

6. PenTile is the trademark of Samsung.
Located in Cupertino and Sebastopol in
California.
Goal- PenTile technology to reset industry
expectations with a completely new level
of imaging performance and power
efficiency.

7. PenTile RGBG- PenTile RGBG layout
used in AMOLED and plasma displays
uses green pixels interleaved with
alternating red and blue pixel.
PenTile RGBW- PenTile RGBW
technology adds an extra subpixel to the
traditional red, green and blue subpixels
that is a clear area without colour filtering
material.

8. Each display technology has intrinsic
characteristics.
Quality of the image has three dimensions-
gray level count, sample point count and
modulation transfer frequency

9. Modulation Transfer Frequency- ratio of
output modulation to the input modulation.
Nyquist rate- is twice the maximum
component frequency of the function being
sampled. This is given by the Nyquist and
Shannon sampling theorem.

10. Matrix multiplication of the vectors.
Optical centre of gravity.
Centre subpixel of logical pixel will be
50%.
Red/green pixels will be 12.5%.
Blue pixel will be 25%.

11.  Create DOG logical pixels which sharpen
images.
 Focusing on the corners to become a small
focused dot.
 The brain can see an even sharper white dot.
 Horizontal and vertical MTF equal to one.

12.  Cuts power consumption in half for equivalent
brightness.
 Achieves higher resolution
 Provides flexible settings for colour control
and power savings
 Increases cost savings potential and yield for
manufacturers
 Accelerates adoption of next-generation
devices
 Makes text easier to read

13.  PenTile screens have fewer sub-pixels
overall.
 Screens for these display often have to be
slightly larger than other display
technologies.
'fringing' on the edge of solid blocks of
colour.

14. RGB has 48 subpixels in 4X4 grid while
penTile has 32 subpixels.
PenTile are cheaper to manufacture and
save resources.
PenTile has a larger life span for the same
high resolution images.

15. IPHONE 5 SUPER AMOLED SAMSUNG
GALAXY S3

16. “Always-on” mobile displays.
MPEG decompression.
Better resolution and image performance.
Mobile video needs more brightness.

17. Initially, smart phones and cameras are
using the PenTile OLED displays.
Next, PenTile RGBW display will is to be
implemented in Tablets.
Then, it will be used in Laptop PCs and
UDTVs.

18. PenTile technology integration will enable
display manufacturers to introduce third-
generation mobile displays that satisfy new
demands.
PenTile technology can be readily applied
to several growing segments of the display
market.

19. Mobile Displays: Technology and
Applications by Achintya K. Bhowmik, Zili
Li and Philip J.Bos.
http://www.nouvoyance.com
http://pentileblog.com
https://en.wikipedia.org/wiki/PenTile_matrix
_family

20. Any Queries?

21. Thank You