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The OLED-Association responds to DisplayMate's Nexus-One tests

A few days ago we posted about DisplayMate's Nexus-One display tests. Basically they are very unhappy with the OLED's performance, especially when compared to the iPhone's LCD.

Now Barry Young from the OLED-Association has sent us his response to these tests:

Last week, there was an incredible amount of Internet chatter, generated by one well-regarded tester (DisplayMate) and one blogger (DisplayBlog) comparing the AMOLED display in the Nexus I with the LTPS LCD in the iPhone. In short, according to the tester, the AMOLED didn’t measure up. The evaluation was, to my knowledge, the first in-depth scientific comparison of the two displays. Did they help or just confuse the situation? There was a time when display architectures and the measurements of performance were relatively simple:

Read the full story Posted: Mar 02,2010

The Nexus One's OLED gets an in-depth technical check, turns out very bad

The DisplayBlog and DisplayMate are working on an interesting series of tests for Google's Nexus One phone AMOLED display and the iPhone's 3GS display. It's not finished yet, but they have posted the first tests of the AMOLED display. There's a lot of technical information, but here are the main conclusions:

  • The OLED is 800x480, but uses PenTile technology, that has two-thirds of the total number of sub-pixels found on an 800x480 LCD, so it won’t be quite as sharp as a typical 800x480 display.
  • The display has only 16-bits color depth, with just 32 or 64 intensity levels. DisplayMate say this is unacceptable for a high performance phone such as the Nexus One. The colors are coarse and inaccurate as a result. 
  • The display is excellent for text, icons and menu graphics, but poor for image and awful for resolution scaling. The problem with resolution scaling lies in the Android OS which uses a "laughably primitive scaling algorithm".
  • The peak white brightness is just 229 cd/m2 which is rather poor.
  • The black brightness is outstanding (0.0035 cd/m2) - so dark it is hard to measure or even detect.
  • The contrast ratio (65416) is great, the highest they have measured for a production display.
  • The screen reflectance is relatively high and washes out the image, makes it hard to view in bright conditions. 
  • The phone uses Dynamic Color and Dynamic Contrast which results is exaggerated colors and stretching of images.
Read the full story Posted: Feb 23,2010 - 2 comments

What's the best Android phone display?


Engadget has posted an interesting comparison between 6 different Android phones: MyTouch 3G, HTC Hero, Motorola Milestone / Droid, Acer Liquid, Google Nexus One, and Samsung Galaxy (laid out clockwise in the image below). Two of these have OLED displays, the Samsung Galaxy and the Nexus One. Engadget say that the best one is the Nexus One's 3.7" AMOLED. You can see for yourself in the following photo and video:



Android phones displays photo






Read the full story Posted: Feb 04,2010

The Nexus One in sunlight is actually better than the Droid?


The old OLED-in-sunlight saga continues. After hearing that the Omnia II is better than the Nokia N900, we get an interesting comparison between Google's Nexus One (3.7" AMOLED) and Motorola's Droid (3.7" TFT LCD). It's a long (and shaky) video, but here's the summary:



  • The AMOLED is brighter than the Droid, and behaves better at Sunlight

  • In normal conditions, the Nexus one has much more vivid colors. When viewing photos or videos, the AMOLED has much better colors.

  • The reviewer complains that he 'sees individual pixels' on the AMOLED - and this does not happen on the LCD (I'm not sure what he means). He says that sometimes the LCD's image is more 'crisp'.

  • Overall the AMOLED is much better than the LCD.

Read the full story Posted: Jan 16,2010 - 2 comments

Google to release their own branded phone soon, with a hi-res OLED

There are reports that Google are planning to release a new phone soon. It will run Android OS 2.1, it will be very fast, thinner then the iPhone, with no keyboard and two microphones. The display will be a "super high-resolution OLED touchscreen. Google will only sell the phone unlocked.

Some Google employees around the world are already testing this new phone...

Read the full story Posted: Dec 13,2009