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Diffstat (limited to 'posts')
| -rw-r--r-- | posts/2013-07-25-kobo-touch.markdown | 47 | ||||
| -rw-r--r-- | posts/2013-07-25-kobo-touch.skr | 58 |
2 files changed, 58 insertions, 47 deletions
diff --git a/posts/2013-07-25-kobo-touch.markdown b/posts/2013-07-25-kobo-touch.markdown deleted file mode 100644 index df6666d..0000000 --- a/posts/2013-07-25-kobo-touch.markdown +++ /dev/null @@ -1,47 +0,0 @@ ---- -title: A look inside the Kobo Touch -tags: DIY,electronics ---- - -The e-ink screen of my Kobo Touch ebook reader broke, probably because -it didn't like being bent regularly. It was a little over a year old -when it happened, way too soon to give up on it, so I decided to take -it apart and replace the screen if possible. - -If you want to open any device that is held together by plastic parts -with teeny plastic flaps that snap into each other: use a guitar -pick. The Jazz III pick (my favourite) is very well suited for the -job. I used it to pry apart the plastic frame of my netbook before. -The Kobo touch is really a beautiful device (if you have one, I -encourage you to look inside) and is much easier to take apart than my -netbook. The battery is much smaller than I expected and the PCB is -very clean and ordered. - -The screen is glued to a very robust frame (metallic, looks like iron) -with two stripes of adhesives; with some nudging I could separate the -two components. The screen's backside is shiny, polished; -mesmerizing. If you want to keep it that way, don't touch it with your -filthy fingers. - -Originally, I wanted to take the opportunity to upgrade the screen to -whatever model is compatible with the driver chip. This is printed on -the chip: - - E INK - TPS65185 - TI 181 - A49F G4 - -As it was difficult to get detailed documentation on the types of -panels that can be used with the chip I decided to simply get the same -model as the broken screen: ED060SCE LF T1. The same screen seems to -be used in the Nook. - -I paid CNY 180 for a replacement. It appears to be a more recent -revision of the screen; there's a little IC on the flexible connector -and a few numbers on the labels have changed. It works fine, though -ghosting seems to be significantly worse. The Kobo UI doesn't always -force a full page refresh; this only really affects the library -browser, though. (The refresh rate can be configured for reading -mode.) The more often a part of the screen is updated the more gray -noise appears all over the screen.
\ No newline at end of file diff --git a/posts/2013-07-25-kobo-touch.skr b/posts/2013-07-25-kobo-touch.skr new file mode 100644 index 0000000..f4c931d --- /dev/null +++ b/posts/2013-07-25-kobo-touch.skr @@ -0,0 +1,58 @@ +(define meta + `((title . "A look inside the Kobo Touch") + (date . ,(string->date* "2013-07-25 00:00")) + (tags "DIY" "electronics"))) + +(list + (p [The e-ink screen of my Kobo Touch ebook reader broke, probably + because it didn’t like being bent regularly. It was a little over + a year old when it happened, way too soon to give up on it, so I + decided to take it apart and replace the screen if possible.]) + + (wide-img "2013/kobo-broken.jpg" + "the broken display") + + (p [If you want to open any device that is held together by plastic + parts with teeny plastic flaps that snap into each other: use a + guitar pick. The Jazz III pick (my favourite) is very well suited + for the job. I used it to pry apart the plastic frame of my + netbook before. The Kobo touch is really a beautiful device (if + you have one, I encourage you to look inside) and is much easier + to take apart than my netbook. The battery is much smaller than I + expected and the PCB is very clean and ordered.]) + + (figure "2013/kobo-inside.jpg" + "After removing the back cover") + + (p [The screen is glued to a very robust frame (metallic, looks like + iron) with two stripes of adhesives; with some nudging I could + separate the two components. The screen’s backside is shiny, + polished; mesmerizing. If you want to keep it that way, don’t + touch it with your filthy fingers.]) + + (p [Originally, I wanted to take the opportunity to upgrade the screen + to whatever model is compatible with the driver chip. This is + printed on the chip:]) + + (pre (code [E INK +TPS65185 +TI 181 +A49F G4])) + + (wide-img "2013/kobo-driver-chip.jpg" + "close-up of the driver chip") + + (p [As it was difficult to get detailed documentation on the types of + panels that can be used with the chip I decided to simply get the + same model as the broken screen: ED060SCE LF T1. The same screen + seems to be used in the Nook.]) + + (p [I paid CNY,(~)180 for a replacement. It appears to be a more + recent revision of the screen; there’s a little IC on the + flexible connector and a few numbers on the labels have changed. + It works fine, though ghosting seems to be significantly worse. + The Kobo UI doesn’t always force a full page refresh; this only + really affects the library browser, though. (The refresh rate can + be configured for reading mode.) The more often a part of the + screen is updated the more gray noise appears all over the + screen.])) |