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LCD assembly 380ed vs 385ed

Older ThinkPads.. from the 600, the 7xx, the iSeries, 300, 500, the Transnote and, of course, the 701
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onespeedbiker
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LCD assembly 380ed vs 385ed

#1 Post by onespeedbiker » Tue Oct 29, 2019 11:14 am

I have a 385ed with a fading 12.1" DSTN LCD and found a 380ed 12.1" TFT lcd assembly (entire LCD cover and hinges, less the bezel). I'm hoping I could just replace one with the other. Any thoughts?

Thinkpad4by3
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Re: LCD assembly 380ed vs 385ed

#2 Post by Thinkpad4by3 » Tue Oct 29, 2019 11:46 am

As long as it's a full unit, I don't see any reason it won't be a direct swap since inverters ate also swapped and matched.
Thinkpad4by3's Law of the Universe.

The efficiency of two screens equally sized with equal numbers if pixels are equal. The time spent by a 4:3 user complaining about 16:9 is proportional to the inefficiency working with a 16:9 display, therefore the amount of useful work extracted is equal.

onespeedbiker
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Re: LCD assembly 380ed vs 385ed

#3 Post by onespeedbiker » Tue Oct 29, 2019 12:17 pm

Thank you for responding! It good to know it has a real possibility of working. Would you think a TFT LCD is an upgrade or just lateral replacement?

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Re: LCD assembly 380ed vs 385ed

#4 Post by Thinkpad4by3 » Tue Oct 29, 2019 1:48 pm

onespeedbiker wrote:
Tue Oct 29, 2019 12:17 pm
Thank you for responding! It good to know it has a real possibility of working. Would you think a TFT LCD is an upgrade or just lateral replacement?
An upgrade you will not regret the moment you see how much better a TFT display is. :mrgreen:

...there is a reason I refuse to buy vintage machines with DSTN displays.
Thinkpad4by3's Law of the Universe.

The efficiency of two screens equally sized with equal numbers if pixels are equal. The time spent by a 4:3 user complaining about 16:9 is proportional to the inefficiency working with a 16:9 display, therefore the amount of useful work extracted is equal.

onespeedbiker
Freshman Member
Posts: 112
Joined: Sun Jun 23, 2019 10:42 pm
Location: Santa Cruz, CA

Re: LCD assembly 380ed vs 385ed

#5 Post by onespeedbiker » Sat Nov 09, 2019 5:03 pm

Well I received the LCD and unfortunately it appears to be defective. I installed it and the screen has a dull green haze from boot to Windows 95. I'm already in contact with the seller to return it. Out of curiosity do you know what would cause this? Would it be the LCD or inverter? I'm also curious how to match an LCD to an inverter. I see some fairly inexpensive TFT screens for my 385ed but I don't know which inverter I would need. Do just match up a TFT LCD with a TFT inverter? Also would I also need a different harness?

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Re: LCD assembly 380ed vs 385ed

#6 Post by Thinkpad4by3 » Sat Nov 09, 2019 9:58 pm

I'd check the LCD assembly to check for a disconnected ribbon
The backlight is on but it only displays black?
Thinkpad4by3's Law of the Universe.

The efficiency of two screens equally sized with equal numbers if pixels are equal. The time spent by a 4:3 user complaining about 16:9 is proportional to the inefficiency working with a 16:9 display, therefore the amount of useful work extracted is equal.

onespeedbiker
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Posts: 112
Joined: Sun Jun 23, 2019 10:42 pm
Location: Santa Cruz, CA

Re: LCD assembly 380ed vs 385ed

#7 Post by onespeedbiker » Sun Nov 10, 2019 11:03 am

No, images on the display are very visible, you can also see the colors, but everything has a green tint and the tint is visible even with the booting text.

Thinkpad4by3
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Re: LCD assembly 380ed vs 385ed

#8 Post by Thinkpad4by3 » Sun Nov 10, 2019 11:15 am

onespeedbiker wrote:
Sun Nov 10, 2019 11:03 am
No, images on the display are very visible, you can also see the colors, but everything has a green tint and the tint is visible even with the booting text.
Can you take a picture?
Thinkpad4by3's Law of the Universe.

The efficiency of two screens equally sized with equal numbers if pixels are equal. The time spent by a 4:3 user complaining about 16:9 is proportional to the inefficiency working with a 16:9 display, therefore the amount of useful work extracted is equal.

onespeedbiker
Freshman Member
Posts: 112
Joined: Sun Jun 23, 2019 10:42 pm
Location: Santa Cruz, CA

Re: LCD assembly 380ed vs 385ed

#9 Post by onespeedbiker » Sun Nov 10, 2019 12:23 pm

Good news, I will be keeping the monitor and it's because of you request for a photo. Turns out I just needed to leave it on for a little bit. When I first installed the TFT monitor, I saw the green tint and immediately turned it off. However, after leaving it on for about a minute to take a photo, it brightened up quite a bit. While the FRSTN LCD took no time to warm up, the TFT monitor apparently takes about 30-40 seconds to do so. Further I read several times that a TFT screen does not have as bright a white as DSTN screens, which may have been what I thought was a defective screen.

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