4 ms·

The World of Liquid Crystal Displays (2006)

57 points by vinchuco 10y ago

irq 10y ago
This probably needs a [2006] in the title.
- pawadu 10y ago
  or a (2011)
- wwwhizz 10y ago
  That explains the web design as well.
  - jve 10y ago
    Even for 2006, thats some old fashioned design. But doesn't mean that it's bad - no distractions, leads straight to the content. I like it.
  - agumonkey 10y ago
     QED
  - thefastlane 10y ago
    you mean how it loaded instantaneously?
userbinator 10y ago
I know it's an introduction, but it misses a lot of the interesting points that are actually important even for people just buying LCDs --- like how intensity gradation is achieved (FRC/temporal dithering vs. pure DAC) and why inversion/AC driving signals are necessary, and how they can contribute to flicker and odd artifacts when displaying certain patterns. Those wishing to know may find the answers in here: http://web.nchu.edu.tw/pweb/users/fansen_wang/lesson/7043.pdf http://web.nchu.edu.tw/pweb/users/fansen_wang/lesson/7043.pd... http://www.techmind.org/lcd/ http://www.techmind.org/lcd/ http://www.solomon-systech.com/files/ck/files/Application%20Notes/TFT%20Flickering%20Application%20Note_1.1.pdf http://www.solomon-systech.com/files/ck/files/Application%20... In my experience, panel and driver IC manufacturers seem to give the best explanations of the technology, and it's often quite readable even for someone without experience with LCDs.
- vinchuco 10y ago
  These are great! I'm actually diametrically opposed to expert status in this area. I came across this trying to figure out how these work: https://www.youtube.com/watch?v=CJvNEzCaNwg https://www.youtube.com/watch?v=CJvNEzCaNwg to try to answer some questions: a) How hard could it be to do a DIY version vs buying one? b) Why don't they produce larger (blackboard-sized) versions of this tablet i.e. for school settings? c) Downsides? How much do these really last?
  - posterboy 10y ago
    I guess a) and b) economics of scale apply positively and negatively, respectively, ie. cost and, again, cost.
  - userbinator 10y ago
    Internal examination of a slightly different model: https://www.youtube.com/watch?v=Qgt1b81DJEw https://www.youtube.com/watch?v=Qgt1b81DJEw
ChrisClark 10y ago
I assume transflective displays hit a limit on density and color reproduction. But I really wish they hadn't. A tablet would be perfectly readable indoors and outdoors with it. My Dell Axim was great in sunlight and still had a backlight for indoors.

57 points by vinchuco 10y ago

irq 10y ago

This probably needs a [2006] in the title.

pawadu 10y ago
or a (2011)
wwwhizz 10y ago
That explains the web design as well.
- jve 10y ago
  Even for 2006, thats some old fashioned design. But doesn't mean that it's bad - no distractions, leads straight to the content. I like it.
- agumonkey 10y ago
   QED
- thefastlane 10y ago
  you mean how it loaded instantaneously?

userbinator 10y ago

I know it's an introduction, but it misses a lot of the interesting points that are actually important even for people just buying LCDs --- like how intensity gradation is achieved (FRC/temporal dithering vs. pure DAC) and why inversion/AC driving signals are necessary, and how they can contribute to flicker and odd artifacts when displaying certain patterns. Those wishing to know may find the answers in here: http://web.nchu.edu.tw/pweb/users/fansen_wang/lesson/7043.pdf http://web.nchu.edu.tw/pweb/users/fansen_wang/lesson/7043.pd... http://www.techmind.org/lcd/ http://www.techmind.org/lcd/ http://www.solomon-systech.com/files/ck/files/Application%20Notes/TFT%20Flickering%20Application%20Note_1.1.pdf http://www.solomon-systech.com/files/ck/files/Application%20... In my experience, panel and driver IC manufacturers seem to give the best explanations of the technology, and it's often quite readable even for someone without experience with LCDs.

vinchuco 10y ago
These are great! I'm actually diametrically opposed to expert status in this area. I came across this trying to figure out how these work: https://www.youtube.com/watch?v=CJvNEzCaNwg https://www.youtube.com/watch?v=CJvNEzCaNwg to try to answer some questions: a) How hard could it be to do a DIY version vs buying one? b) Why don't they produce larger (blackboard-sized) versions of this tablet i.e. for school settings? c) Downsides? How much do these really last?
- posterboy 10y ago
  I guess a) and b) economics of scale apply positively and negatively, respectively, ie. cost and, again, cost.
- userbinator 10y ago
  Internal examination of a slightly different model: https://www.youtube.com/watch?v=Qgt1b81DJEw https://www.youtube.com/watch?v=Qgt1b81DJEw

ChrisClark 10y ago

I assume transflective displays hit a limit on density and color reproduction. But I really wish they hadn't. A tablet would be perfectly readable indoors and outdoors with it. My Dell Axim was great in sunlight and still had a backlight for indoors.