I have a pdf file for the above mention lcd that I want to upload

for anybody to access. File size is 301k.

Not sure the difference of the -02 or the -04. I hope it's not the LVDS connector.

Can anyone verify the numbers of the connectors as to being the same or not

compared to the -02?


B0SC0

It's highly unlikely that the suffix would indicate any change in the LVDS physical connector or the pinout.
Most suffix changes are more along the lines of the on board LVDS receiver circuitry or gate driver changes.

I believe most of the 15.4 LCDs out there use the same LVDS signals being single channel, 6 bits.

Does the data sheet show that it would use the following connector and pinout?:
FI-X30M or Equivalent
Pin Name
1 Ground
2 VDD 3.3V
3 VDD 3.3V
4 DDC 3.3V (or NC)
5 NC
6 DDC Clock (or NC)
7 DDC Data (or NC)
8 RxIN0-
9 RxIN0+
10 Ground
11 RxIN1-
12 RxIN1+
13 Ground
14 RxIN2-
15 RxIN2+
16 Ground
17 ClkIN-
18 ClkIN+
19 Ground
20 NC
.
.
30 NC

I was thinking also that it (-04) might be an oem panel that could have

a different connector or some other difference.


5. INPUT TERMINAL PIN ASSIGNMENT
5.1. Input Signal & Power (LVDS, Connector : JAE FI-XB30SL-HF10 or compatible )
Mating Connector : JAE FI-X30M or compatible)

Starting with pin 1 - 30

Positive LVDS Differential Data INPUT (Even G1-G5,B0-B1) E_RxIN1+ 24
Negative LVDS Differential Data INPUT (Even G1-G5,B0-B1) E_RxIN1- 23
Ground GND 22
Positive LVDS Differential Data INPUT (Even R0-R5,G0) E_RxIN0+ 21
Negative LVDS Differential Data INPUT (Even R0-R5,G0) E_RxIN0- 20
Ground GND 19
Positive LVDS Differential Data INPUT (Odd Clock) O_RxCLK+ 18
Positive LVDS Differential Data INPUT (Even Clock) E_RxCLK+ 30
Negative LVDS Differential Data INPUT (Even Clock) E_RxCLK- 29
Ground GND 28
Positive LVDS Differential Data INPUT (Even B2-B5,Sync,DE) E_RxIN2+ 27
Negative LVDS Differential Data INPUT (Even B2-B5,Sync,DE) E_RxIN2- 26
Ground GND 25
Negative LVDS Differential Data INPUT (Odd Clock) O_RxCLK- 17
Ground GND 16
Positive LVDS Differential Data INPUT (Odd B2-B5,Sync,DE) O_RxIN2+ 15
Negative LVDS Differential Data INPUT (Odd B2-B5,Sync,DE) O_RxIN2- 14
Ground GND 13
Positive LVDS Differential Data INPUT (Odd G1-G5,B0-B1) O_RxIN1+ 12
Negative LVDS Differential Data INPUT (Odd G1-G5,B0-B1) O_RxIN1- 11
Ground GND 10
Positive LVDS Differential Data INPUT (Odd R0-R5,G0) O_RxIN0+ 9
Negative LVDS Differential Data INPUT (Odd R0-R5,G0) O_RxIN0- 8
DDC data DATAEDID 7
DDC Clock CLKEDID 6
Ground GND 5
DDC 3.3V Power VEEDID 4
POWER SUPPLY +3.3V VDD 3
POWER SUPPLY +3.3V VDD 2
Ground GND 1
Remarks Polarity Function Symbol No.

Well, all panels are basically OEM panels.
That pinout you provided is different than the 15.4, LVDS single channel, 6 bit panel info I have.
It shows that particular 15.4 panel as being LVDS, dual channel, 6 bit.
That should mean it would be faster (lower response times as the panel can receive twice the number of bits in the same time) but since it's 6-bit, it's still limited to 262,144 colors.
However, since I do not have the information on any of the LTN154U series panels, the others may well use the same pinout and specs as this one.

The info I provided is based on other common 15.4 panels (LP154W01, LTN154X1, LTD154EX, LTD154LX, etc)
All of those that I have info on are LVDS single channel, 6bit, with the pinout I provided.

Here is the label on the -01.

B0SC0

The last 2 numbers on laptop lcd's are supposed to designate which Laptop it is a replacement for.

I guess that could also mean that it has a different Lvds cable depending on which laptop it was meant for.

That was what I was thinking,jonjandran.

I have a brand new Samsung Ltn154u2-L04 that was suppose to go in an Alienware laptop.

And I am currently stripping a Samsung Ltn154u2-L01 that came out of a Dell XPS laptop.

As you said,it could be a different Lvds cable or the same cable with different pinouts

as fmerrill eluded to.

Do you have any datasheets L01-L03?

B0SC0

No i only have a Toshiba datasheet.

Well after combing ebay for samsung lcd numbers I have come to the conclusion

that my theory is wrong.

I believe that the -L0? is probably just a revision number.

They may HAVE either made changes to the circuit brd or the lcd itself.

Most likely the circuit brd.

B0SC0

I thought I said that in my first reply. It doesn't actually indicate the laptop it goes in. The suffix is used in LCDs that never go into any laptop at all.
For example, the Samsung 151S desktop model listed in the compatible list, used a LTM150XH-L01 panel.
When they make changes to the LCD itself, it would be a new model.

You are correct.

You said
"Most suffix changes are more along the lines of the on board LVDS receiver circuitry or gate driver changes."

Me: After looking at the pcb on the lcd, that is all that's on there. duh...



I said "They may HAVE either made changes to the circuit brd or the lcd itself.

Most likely the circuit brd."


Then you said "When they make changes to the LCD itself, it would be a new model."


Now I am supposed to say: I thought I said that in my last reply.

As I said



From here:
http://www.thinkpadlcdscreens.com/faq.shtml

But not necessarily correct. For example, The inverter cable isn't always supplied by the LCD manufacturer, is not actually considered part of the LCD panel itself, and in the example given, I have found both the panels indicated in Dell Latitude C610s.
In another, I found the same model, with a different suffix (L01 if I remember correctly) and it had a backlight cable (Pink and White) that was actually longer by about 3/4". So, maybe it's not the laptop it is installed in, but something like the backlight cable length. And thinking about that, maybe that is what they meant, not the inverter cable, but the backlight cable, which are not the same thing. An inverter cable runs from the control board: motherboard, video controller, whatever, to the inverter. The backlight cable runs from the panel to the inverter.
And, again, the suffix is present on panels that are not in a laptop at all, so it being stated that it specifies which laptop just isn't correct.

In any case, it doesn't really reflect on the base model number and it's specifications relevant to use for projectors, and should nearly always be able to be ignored for that purpose

Of course, I should put a disclaimer on anything I write, as I certainly don't work in the LCD industry.

No it doesn't always refer to what laptop it goes in but a lot of the times it does.

And yes they were talking about the backlight cable and not the Lvds cable. The backlight cable is sometimes different lengths for different laptops.

And of course panels that don't go in laptops will have different suffixes also. The suffix is always used to show it is from a different manufacturing batch. I was just pointing out that in laptop panels that a lot of times it is used to determine which laptop it is a replacement for.


But hey, think what you will, what do I care

It's not a matter of thinking "what I will" as if I'm wrong.
I never said they were referring to an LVDS cable, not sure where you got that from?
They said inverter cable, when apparently they meant backlight cable.
I also agree that the suffix means a different manufacturing batch and never said it didn't.
I guess what I meant is that the information they posted there isn't 'wholly' correct. Of course some of it is.

I won't comment further, because it's certainly not in any way helpful to the original question, and it was my intent to help, not do this.

No i was correcting myself on the Lvds cable comment. i had said Lvds cable earlier.

My "Think what you will" comment was directed at these comments made by you.



You obviously didn't think the suffix has anything to do with what laptops the panel goes in when it does at times. I correct people at times, a lot of people don't like it. I don't apologize. It shouldn't be a matter of pride.It's a matter of having factual information on these forums. And together we did that. Like I said it doesn't really matter to me.

But what we do know.

1. The suffix on a panel always means a different manufacturing batch for that base part number.
2. It sometimes indicates small negligible differences in the panels.
3. It sometimes indicates which laptop/manufacturer make that the panel is a replacement for.
4. It will sometimes indicate a different size backlight cable.
5. There are some exceptions in which the suffixes denote more profound differences between similar part number screens

That is information that we know is correct. Also it doesn't really help us much at all since there aren't any absolutes.

Back to my original statement

"I have a pdf file for the above mention lcd that I want to upload

for anybody to access. File size is 301k."

Would this benefit anyone and where/how can I upload it?

B0SC0

Email it to me and i can host it.

Here is the pdf for the Samsung LTN154U2-L04 Datasheet for anyone who needs it.

Right click on it and click "save link as" to save it to your hard drive.

Samsung LTN154U2-L04 Datasheet

I wish it would say what the actual response time is.

It does.

25ms typical response time.

It does, it says 25ms typical, and 35ms maximum

EDIT: haha, I just type way to slow!!!