08-17-2009, 02:00 PM | #1 |
Member
Posts: 13
Karma: 98
Join Date: Aug 2009
Location: Neuss, Germany
Device: Hanlin V3 (64MB)
|
Replace broken screen DIY
Hello everybody,
a few weeks ago, I dropped my V3 (only days after I sorta rediscovered it) and broke the screen. You know the symptoms from other reports in other forums but I still attached the pictures. Apparently the "glass" doesn't like torsion at all. At first I thought about donating what was left to the OpenInkpot project but I checked their site and apparently all developers already own (a working) one. Now I did sent some money instead... Anyways, I sent the picture to jinke, asking if they were selling replacement parts. They do (the screen is 90USD) and they even agreed to low cost shipping (no tracking number but excellent packaging and with two weeks not too slow either) AND managed to follow my instructions (not to include an invoice and mark the package as "gift"). Excellent service if you ask me. No further tax or customs fees added. With bank charges and everything, it was still approx. 100EUR. Before I go into details about the steps, one important advice: The replacement part has a protective film that you have to remove before assembly. I didn't and I had to go through the whole procedure twice. Unfortunately I did not take pictures during the whole procedure but I will try to be clear in my description and if you have any questions, I will try to answer them. You need a pretty small screwdriver for the insides to do this.
I hope this helps, if any of you ever runs into this problem! Bye Rapefruit Last edited by Rapefruit; 08-17-2009 at 02:31 PM. Reason: Made the donation a minute ago... |
08-18-2009, 02:01 PM | #2 |
Grand Sorcerer
Posts: 11,470
Karma: 13095790
Join Date: Aug 2007
Location: Grass Valley, CA
Device: EB 1150, EZ Reader, Literati, iPad 2 & Air 2, iPhone 7
|
This would make a good wiki page. Thanks for sharing
Dale |
08-18-2009, 06:56 PM | #3 |
Wizard
Posts: 2,549
Karma: 3799999
Join Date: Jun 2009
Location: O'Fallon, Missouri, USA
Device: Nokia N800, PRS-505, Nook STR Glowlight, Kindle 3
|
I'm really surprised they were willing to sell you a repacement screen, and that price is pretty good to boot, all things considering (isn't much above their cost, based on the estimates I've seen)
|
09-10-2009, 04:41 PM | #4 |
Member
Posts: 11
Karma: 12
Join Date: Mar 2008
Device: iLiad, Cybook, Palm T|X, iPod Touch
|
Hello Rapefruit,
you're lucky. Not because you get the replacement display from PVI, but because to replace an e-ink display involve also to reload the correct waveform associated to that display. Probably, the waveform of the replacement display was similar to the WF loaded in your reader. Maybe you have noticed an increment of the "ghost effect" in your reader. This is because the WF is not correct for your display. The WF is a small file with the description of the characteristics of the display, and depends by the production lot of e-ink active particles. Every lot of displays has a different file. To reload it into the reader, you need an hardware and/or software tool. Moreover, there is also a cailbration to do, related to that small value written on the flexible part of the display (the -1,36 visible on your broken display, different from display to display. I suggest to avoid to do the replacement DIY, because you can get a unusuable reader, because the ghost effect. MZ |
09-11-2009, 03:28 AM | #5 |
Member
Posts: 13
Karma: 98
Join Date: Aug 2009
Location: Neuss, Germany
Device: Hanlin V3 (64MB)
|
Thanks for the information! Then I am lucky, indeed: I notice very slightly more ghosting but so little that I wasn't sure wether it hadn't been the same with the old screen. Maybe, somebody on the other end was aware of the waveform issue and selected a display with similar characteristics?
I'm not going to try to mess with updating it, but could you elaborate a little more on the wave form? I found this here: The Waveform The electronic ink in the display needs to be driven. This driving algorithm is called a waveform. It is a wave or sequence of different voltages that repel or attract the white or black particles in order to pull either the white or black particles to the top. If the waveform only pulls the particles shortly white and black get mixed, which we perceive as grey. So, does having a (slightly) off waveform mean I get wrong shades of grey? And wouldn't you expect the driver to have some safety margin on the "full white" and "full black" sides to ensure turning completely under all conditions? I expect the eink to behave differently depending on temperature (and thus viscosity of the content of the capsules) and you already would need a safety margin to ensure full contrast under all conditions. |
10-06-2009, 03:31 PM | #6 |
Writer2ePub creator
Posts: 354
Karma: 121129
Join Date: Sep 2009
Location: Genova, Italy
Device: Cybook Bebook iLiad Kindle HanlinV2 Readius SonyPRS500 SonyPRS700 etc
|
mainly, a wrong waveform produces only a ghost effect, that is a persistent image of the previous page, more or less visible.
This is caused by an insufficient clearing of the screen before the new print. The waveform describes the best way to clear the display, and I suppose that it is generate while testing every lot of e-ink display. |
10-10-2009, 03:50 PM | #7 |
Shade
Posts: 100
Karma: 546
Join Date: Mar 2009
Location: U.LC.MW.Sol.Earth.EE.SI.LJ
Device: Hanlin Jinke V3ext running OpenInkPot
|
Hmm I would guess this would be stored in the screens firmware and not driver related. So I wouldn't be suprised if a driver can be generic and the firmware is in the screens (whatever)ROM
|
10-16-2009, 02:52 AM | #8 |
Member
Posts: 13
Karma: 98
Join Date: Aug 2009
Location: Neuss, Germany
Device: Hanlin V3 (64MB)
|
I couldn't find anything that looked like PROM on the replacement part. See my pictures in the first post.
Also, I think it is probably much cheaper to offer a set of parameters for each batch (identified by bar codes on the screen) and leave it to the manufacturers to upload a configured driver. Although your suggestion would be better from an engineering point of view. :-) |
05-05-2010, 12:36 PM | #9 |
Junior Member
Posts: 2
Karma: 10
Join Date: May 2010
Device: Sony PRS-600
|
Broken Sony PRS-600 Screen
I leaned on my Sony PRS-600 (very lightly) and broke the screen!
Now I want to fix it. Sony charges $275 for the replacement part - the price of a new one (on sale)! I think I'll try to buy a replacement screen from Hanlin and put it in my Sony. Wish me luck |
05-05-2010, 02:20 PM | #10 | |
Writer2ePub creator
Posts: 354
Karma: 121129
Join Date: Sep 2009
Location: Genova, Italy
Device: Cybook Bebook iLiad Kindle HanlinV2 Readius SonyPRS500 SonyPRS700 etc
|
Quote:
Don't forget that each display needs it's own calibration file, and you need to reload it to minimize the ghost effect. I have most of the calibration files for 6" displays, but I don't have the tool for reload it in the Sony reader. But because I have a lot of spare displays (I replace 2 to 5 each week) I can test many of them in the reader until I find the right one. If you buy a single display from Hanlin, you can be lucky and find the right one, or you can get a lot of ghost effect. Usually one display of ten is good enought to replace without reload the calibration file. Luke Simplicissimus Book Farm Support Engineer |
|
Tags |
broken screen, diy |
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
K3 screen broken | ChaseKR | Amazon Kindle | 30 | 09-28-2010 06:20 AM |
PRS-500 Sony will replace broken PRS500 with... what? | DrMoze | Sony Reader | 4 | 06-05-2010 11:50 PM |
Ended PRS505 Screen for replace your broken one | jimmyzou | Flea Market | 14 | 03-03-2010 02:29 PM |
broken screen. is there a program that skims off top one inch of screen? | pennpin | Sony Reader | 5 | 08-19-2009 04:42 PM |
DIY iLiad Case - never again screen crash! | Gogolo | iRex | 12 | 07-16-2008 03:24 AM |