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Assuming this is a serious question, I think you will know the answer if you look at how any braille display works. They basically "display" one line of text i

by yebyen 9y ago

Assuming this is a serious question, I think you will know the answer if you look at how any braille display works. They basically "display" one line of text in braille at a time. So unless you can appreciate your pixel graphics one printed line at a time, it's unlikely that any blind person will be able to get any benefit from this application.

Sir_Cmpwn 9y ago
Existing one-line braille displays don't understand braille unicode anyway. What's to stop a blind person from making a braille display with a greater display area?
- yebyen 9y ago
  I'm not the one who downvoted, and I don't know how many blind people make their own braille displays. It seems unlikely to me. (Not impossible. Another quick search reveals that multi-line braille exist, so it has been done.) TBH I just did a quick search for braille displays to validate my assumption, and when the first few results came up looking roughly like the one-line display that I expected, I wrote this comment. I'm not an expert in this kind of thing though.
- callahad 9y ago
  My understanding is that braille displays are quite mechanically complex, as each cell needs to be able to individually raise and lower six pips. An 80-character, single-line terminal display would require 480 tiny actuators.
  - katastic 9y ago
    Except they already make bigger than that. A 25x40 display. https://www.wikiwand.com/en/Refreshable_braille_display https://www.wikiwand.com/en/Refreshable_braille_display A full page braille display with 1,000 cells (25 lines of 40 cells) was developed in 2015 by the Tactisplay Corp.[3] With total 12,000 pixels configured in 120*100, it can show any BANA compatible braille graphic page in 8 seconds. This video shows operation of the device. http://www.tactisplay.com/product/tactisplay-table http://www.tactisplay.com/product/tactisplay-table
    - Sir_Cmpwn 9y ago
      Why did you link to this instead of the actual article? https://en.wikipedia.org/wiki/Refreshable_braille_display https://en.wikipedia.org/wiki/Refreshable_braille_display That site is proprietary, adds trackers, etc. -1

by yebyen 9y ago

Sir_Cmpwn 9y ago

Existing one-line braille displays don't understand braille unicode anyway. What's to stop a blind person from making a braille display with a greater display area?

yebyen 9y ago
I'm not the one who downvoted, and I don't know how many blind people make their own braille displays. It seems unlikely to me. (Not impossible. Another quick search reveals that multi-line braille exist, so it has been done.) TBH I just did a quick search for braille displays to validate my assumption, and when the first few results came up looking roughly like the one-line display that I expected, I wrote this comment. I'm not an expert in this kind of thing though.
callahad 9y ago
My understanding is that braille displays are quite mechanically complex, as each cell needs to be able to individually raise and lower six pips. An 80-character, single-line terminal display would require 480 tiny actuators.
- katastic 9y ago
  Except they already make bigger than that. A 25x40 display. https://www.wikiwand.com/en/Refreshable_braille_display https://www.wikiwand.com/en/Refreshable_braille_display A full page braille display with 1,000 cells (25 lines of 40 cells) was developed in 2015 by the Tactisplay Corp.[3] With total 12,000 pixels configured in 120*100, it can show any BANA compatible braille graphic page in 8 seconds. This video shows operation of the device. http://www.tactisplay.com/product/tactisplay-table http://www.tactisplay.com/product/tactisplay-table
  - Sir_Cmpwn 9y ago
    Why did you link to this instead of the actual article? https://en.wikipedia.org/wiki/Refreshable_braille_display https://en.wikipedia.org/wiki/Refreshable_braille_display That site is proprietary, adds trackers, etc. -1