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LCDs on T60/T60p - types, availability and other discussions

T60/T61 series specific matters only
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xsixt
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Re: LCDs on T60/T60p - types, availability and other discussions

#391 Post by xsixt » Sat Mar 11, 2017 10:11 pm

RealBlackStuff wrote:HV150UX1 has CCFL backlight ex-factory
HV150UX2 has LED backlight ex-factory.
Don't you mean factory-fitted?

The term ex-factory means "price at the factory".
T60p 15" UXGA T7600 | T61p 15.4" WUXGA T9500 |
Former: X61 T8300 [Slow GPU] | W510 FHD QM [Top screen but 16:9 sucks] | T420s [Portable but worst LCD ever] | X201 | X200 | X60T [Slow & hot]

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Re: LCDs on T60/T60p - types, availability and other discussions

#392 Post by RealBlackStuff » Sun Mar 12, 2017 7:27 am

The term ex-factory (or ex factory without dash) has been used hundreds of times on this forum, including in posts that predate my joining.
I've seen it used here on the Forum by European, American and Australian members.
http://forum.thinkpads.com/viewtopic.ph ... 15#p773715

See also: http://www.dictionary.com/browse/ex-
Word Origin and History for ex-

word-forming element, in English meaning mainly "out of, from," but also "upwards, completely, deprive of, without," and "former;" from Latin ex "out of, from within," from PIE *eghs "out" (cf. Gaulish ex-, Old Irish ess-, Old Church Slavonic izu, Russian iz). In some cases also from Greek cognate ex, ek. PIE *eghs had comparative form *eks-tero and superlative *eks-t(e)r-emo-.

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Re: LCDs on T60/T60p - types, availability and other discussions

#393 Post by jaspen-meyer » Sun Apr 02, 2017 9:50 pm

from Wordnet
1. antique, demode, ex, old-fashioned, old-hat, outmoded, passe, passee -- (out of fashion; "a suit of rather antique appearance"; "demode (or outmoded) attire"; "outmoded ideas")
=> unfashionable (vs. fashionable), unstylish
T420 i7 3612QM seabios; T420 i7 3630QM; T400 Q9100 seabios; T61 P9600; T60 libreboot; x62; x60s libreboot, led; x24 xiphmont led

marmoset
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Re: LCDs on T60/T60p - types, availability and other discussions

#394 Post by marmoset » Mon Jun 26, 2017 8:39 pm

Can anyone offer me some advice on acquiring a matte-finish UXGA screen for a T60 I recently purchased and upgraded?

The candidates seem to be:

BOE Hydis: HV150UX1-100
CMO/IDTech: N150U3-L06
LG Philips: P150U03-A2P1

Based on TSC posts I've read, and specs I found on Panelook.com, the BOE Hydis seems best, the IDTech a close second, and the LG Philips a distant third.

But the BOE Hydis are evidently hard to get (seemingly only via ebay from certain vendors in China; I had some bad luck with one, and I'm thinking about trying another). Any ideas about alternative sources?

How well might I fare with the IDTech? How poorly with the LG Philips?

Thanks!

ajkula66
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Re: LCDs on T60/T60p - types, availability and other discussions

#395 Post by ajkula66 » Mon Jun 26, 2017 9:45 pm

Welcome to the forum!
marmoset wrote:
Mon Jun 26, 2017 8:39 pm
Can anyone offer me some advice on acquiring a matte-finish UXGA screen for a T60 I recently purchased and upgraded?
All of the panels that you've mentioned have been out of production for about a decade now. In other words, the pickings are beyond slim.

I tend to stay away from Far East sources when it comes to stuff like this, but that's me.

The reality is that if you end up locating a NOS panel in the U.S. - be it ID Tech or Hydis - it's not going to be cheap presuming a trustworthy source. I'd expect to see a $150+ price tag prior to shipping for either of these.

Good luck.
...Knowledge is a deadly friend when no one sets the rules...(King Crimson)

Cheers,

George (your grouchy retired FlexView farmer)

FlexView AARP club members:A31p, T43pSF, X60T

Abused daily: X200s


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Re: LCDs on T60/T60p - types, availability and other discussions

#396 Post by RealBlackStuff » Tue Jun 27, 2017 3:43 am

Lovely day for a Guinness! (the Real Black Stuff). And pigs CAN fly!

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Re: LCDs on T60/T60p - types, availability and other discussions

#397 Post by marmoset » Tue Jun 27, 2017 5:48 pm

Thank you, ajkula66 and RealBlackStuff, for these prompt and helpful replies.

I'm okay with Far East sources per se. The only retail vendors I have found for genuine BOE Hydis and IDTech panels appear to be some Chinese companies selling on ebay, several of which seem to be on the level. But communication difficulties abound, and various costs (time, effort, shipping charges) quickly mount when trying to remedy quality or specification problems. :(

My luck with domestic vendors has been poor as well. I'm learning to beware the tacit substitution of "compatible" parts for what I thought I had specifically ordered! :eek:

So the Sharp LQ150U1LW22(N) panel that RealBlackStuff identified (which is available and inexpensive) might really help. Can anyone comment from experience on how it compares with the BOE Hydis and IDTech?

Also, the IDTech N150U3-[L01/L06] still seems like a possibility. Can anyone explain the L01/L06 distinction? Can anyone state explicitly what I would need to say, regarding the EDID, to the technical person who would install the screen for me?

Thanks!

lab
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Re: LCDs on T60/T60p - types, availability and other discussions

#398 Post by lab » Tue Dec 19, 2017 6:46 am

The Hydis HV150UX2 has some advantages, such as brightness, but there is for some a flickering issue due to PWM with ~250 Hz when dimmed.

With an Intel integrated graphics motherboard however it can easy be set to e.g. 8000 Hz eliminating the problem. I'm not sure of the nVidia board (T601 Frankenpad).

wujstefan
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Re: LCDs on T60/T60p - types, availability and other discussions

#399 Post by wujstefan » Tue Dec 19, 2017 9:09 am

lab wrote:
Tue Dec 19, 2017 6:46 am
With an Intel integrated graphics motherboard however it can easy be set to e.g. 8000 Hz eliminating the problem. I'm not sure of the nVidia board (T601 Frankenpad).
Whoa! continue your thought please.
I have found the flicker really troubling, especially on intel boards, with PWM seeable at all brightness levels. nVidia is visible to my eyes only at the lowest brightness.
Dailies:
X230 - travel / garage
W700 - workhorse
R600 (R500 mobo inside R60 chassis) - daily
600x w/i7 board - thing to admire
Collectibles:
T43, Z60t, G41, R30, R50e, R61i, A31p, T23
Under construction:
R52p, T22, A22m, R40, T30, Z61m

lab
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Re: LCDs on T60/T60p - types, availability and other discussions

#400 Post by lab » Tue Dec 19, 2017 11:56 am

wujstefan wrote:
Tue Dec 19, 2017 9:09 am
lab wrote:
Tue Dec 19, 2017 6:46 am
With an Intel integrated graphics motherboard however it can easy be set to e.g. 8000 Hz eliminating the problem. I'm not sure of the nVidia board (T601 Frankenpad).
Whoa! continue your thought please.
I have found the flicker really troubling, especially on intel boards, with PWM seeable at all brightness levels. nVidia is visible to my eyes only at the lowest brightness.

It's a hidden feature of the Intel driver, and easy to implement however I took a shortcut and used a program called IntelPWMControl. Works without problem on Windows 10 on my T601 with an older Intel graphics driver, I read that there might be some problem with the newest driver but haven't updated an tested that. I set it to 8192 Hz and the frequency of the PWM of the display is as set when I checked.

I downloaded from this link

https://raw.githubusercontent.com/dmytr ... elease.zip

This may be the source code (haven't checked)

https://pastebin.com/6iirMbfc

wujstefan
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Re: LCDs on T60/T60p - types, availability and other discussions

#401 Post by wujstefan » Tue Dec 19, 2017 2:34 pm

:*

This thing did the job! Thanks!
Dailies:
X230 - travel / garage
W700 - workhorse
R600 (R500 mobo inside R60 chassis) - daily
600x w/i7 board - thing to admire
Collectibles:
T43, Z60t, G41, R30, R50e, R61i, A31p, T23
Under construction:
R52p, T22, A22m, R40, T30, Z61m

ko
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Re: LCDs on T60/T60p - types, availability and other discussions

#402 Post by ko » Fri Dec 29, 2017 11:39 pm

Would a Sharp LQ141U1LH02 work in a T60?
Currently running:

W541 (Daily driver)
X230 (Portable)
X61tv (X61t with a build-in TV tuner)
T500 (Workstation)

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Re: LCDs on T60/T60p - types, availability and other discussions

#403 Post by RealBlackStuff » Sat Dec 30, 2017 4:20 am


NonesensE
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Re: LCDs on T60/T60p - types, availability and other discussions

#404 Post by NonesensE » Sat Dec 30, 2017 11:13 am

ko wrote:
Fri Dec 29, 2017 11:39 pm
Would a Sharp LQ141U1LH02 work in a T60?
Did you find one? I'm searching for quite a while now...

Yes, it works with a pin mod. If you plug it in directly, you will blow a fuse.
Sometimes coming over from the German forum...
X62s 3rd batch, [s]T61[/s] T70 14" 4:3 1st batch

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Re: LCDs on T60/T60p - types, availability and other discussions

#405 Post by fourthree » Tue May 08, 2018 12:41 pm

http://www.panelook.com/TDA150-005V01_B ... 33737.html

Scouted on panelook. HV150UX2 successor?
Dorkstation: T601f
Ultraportable: X61s

zoltan87
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Re: LCDs on T60/T60p - types, availability and other discussions

#406 Post by zoltan87 » Tue Oct 30, 2018 2:36 pm

fourthree wrote:
Tue May 08, 2018 12:41 pm
http://www.panelook.com/TDA150-005V01_B ... 33737.html

Scouted on panelook. HV150UX2 successor?
Wow, I have just had a look, and indeed it looks like a new version of the old panel, with better specs! Although I see a different connector type (? LVDS 40 pin, instead of 30 on the old one). I wonder if there could be a way to make this panel work, Although I am not sure how available they are, for this screen panelook lists 0 suppliers, and only 2 available unitos on stock, meanwhile for all the other panel types I saw there, there were hundreds of suppliers.

Maybe it's just some kind of error, or the whole panel is just a prototype?
Laptops after the 4:3 aspect ratio era are non-existent to me.

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Re: LCDs on T60/T60p - types, availability and other discussions

#407 Post by DenizOezmen » Fri Jan 25, 2019 1:15 pm

While replacing the screen on a T61, I learned a bit about EDIDs. Apologies if this information is already known, but I was not able to find it anywhere else:

It seems like Lenovo always uses the same sequence of descriptor blocks in their custom EDIDs: The first two are regular detailed timing descriptors, and the third one is the dreaded manufacturer-specific descriptor that must be present for a T6x machine to recognize the screen as a genuine part. This custom descriptor is not completely bogus, however. It does contain useful information, albeit in a proprietary format. This is an example from a LTN141P4-L02:

Code: Select all

90 43 32 90 43 28 0F 01 00 4C A3 50 34
Note that the first six bytes can be split into two (almost identical) groups of three. Of these groups, the first byte seems to indicate the horizontal resolution in the same format used in the standard timing information block, which means: Add 31 to the byte value and multiply by 8. In this case: 0x90 = 144 decimal, which results in (144 + 31) * 8 = 1400. This seems correct, since the LTN141P4-L02 is an SXGA+ screen.

Browsing through the EDID database thread resulted in the following collection:

Code: Select all

16:10
-----
D1 0A ... --> 1920x1200     0xD1 = 209 --> (209 + 31) * 8 = 1920
B3 0A ... --> 1680x1050     0xB3 = 179 --> (179 + 31) * 8 = 1680
90 0A ... --> 1440x900      0x90 = 144 --> (144 + 31) * 8 = 1400 (This is the odd one out. The byte should have been a 0x95.)
81 0A ... --> 1280x800      0x81 = 129 --> (129 + 31) * 8 = 1280

4:3
---
A9 43 ... --> 1600x1200     0xA9 = 169 --> (169 + 31) * 8 = 1600
90 43 ... --> 1400x1050     0x90 = 144 --> (144 + 31) * 8 = 1400
61 43 ... --> 1024x768      0x61 = 97  --> (97 + 31) * 8 = 1024
And for good measure, here's the equivalent EDID excerpt from the screen in my T450s:

Code: Select all

16:9
----
D1 09 ... --> 1920x1080     0xD1 = 209 --> (209 + 31) * 8 = 1920
This leads to the second observation: The second byte seems to be an indicator for the aspect ratio: 0x43 for 4:3, 0x0a = 10 for 16:10, 0x09 = 9 for 16:9.

Beyond this, I can still only speculate. The third bytes are almost always 0x32 and 0x28, which translate to 50 and 40, respectively. Since the two regular detailed timing descriptors usually indicate a 60 Hz and a 50 Hz timing, I would guess that these bytes might be indicative of the refresh rate. On the screen of the T450s, this value is 0x3B = 59 in both groups.

As for the remaining bytes, I don't really have a clue yet. Some of them seem like a collection of flags. The fifth to last one is always zero. The last four bytes look convoluted (at first I thought it might be a checksum of some kind), but they too seem to follow a pattern, and different screens share parts of these bytes. Here's a collection of some of them:

Code: Select all

09 E5 00 00
0D AF 07 14
0D AF 12 15
30 64 00 55
30 64 90 55
32 0C 00 00
4C A3 50 34
4C A3 55 32
4C A3 57 31
4C A3 57 44
4C A3 58 33
4C A3 58 47
0D AF 51 15
Does anybody have more information on the structure of these blocks? It might make building EDIDs for replacement screens a lot easier ...

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