Laptop screen identification code discrepencies

[d3v]

Hi all, when I got to order a new LCD laptop screen I often see slight discrepencies in the model number for example a screen may be...

LP156WH4
(TL)(C1)

but the screen on ebay/amazon/ect may say...
LP156WH4
(TL)(A1)

or (B1) (Q1) ect???

Do these strange codes need to be the same, and what do they mean?

 

[Chill]

There are a lot of myths about this revision marks.

Most screen suppliers, use own compatibility lists or from the suppliers in Asia.

Some of these data are from the service manual of the notebook manufacturer and or in the technical specifications of the LCD Panel manufacturers. Not to mention, the customer feedback

Basically screens of the same type, size, resolution, backlight and connection are compatible.

With LED Panels are a variety of different connection options available as 40pin (standard), 30pin connector ... position (bottom left, bottom right).

The exchange through compatible screens is only difficult when the notebook manufacturer comes up with the great idea to get an ID in the Enhanced Extended Display Identification Data (EEDID). This can be recognized by the laptop firmware and blocked the compatible screen or show many other funny malfunction.

One solution is to get there the respective screen with the manufacturer number, for example at Dell "DP / N" at Lenovo's "FRU".

Another solution is to copy the EEDID to the new compatible display.

Matching quipment for example,

http://www.aliexpress.com/item/Y1-l...-screen-burner-usb-programmer/1124537018.html

We have ourselves a similar device for this purpose.

Those who are interested can take a look at the EDDID data:

http://www.datasheetspdf.com/PDF/LP156WH4-TLA1/791685/29

 

[gadgetfixup]

I've found that typically the last set of brackets indicates the mount. If you compare screens with all the same information with just different last brackets typically some have tabs at top, or bottom or both which may or may not be a deal breaker. Some of the tab mounting brackets are screwed on and others use rivets (nothing a dremel with a small bit can't cut)

 

[PCX]

I tried to just copy an older post of mine but it did not copy over the links and it is too difficult to try to fix it by phone so here is the link to my old post.

https://www.technibble.com/forums/threads/stock-led-lcd.52772/#post-407960

 

[frase]

As PCX said though as well.

Best practice to go by the model number of the laptop in general. To be sure remove the bezel and panel - careful not to damage display cable attached and see the exact code written on the rear of the panel. Match this to what you are wanting to purchase, If HP model is for the desired part use http://partsurfer.hp.com/ [or hardly perfect as I call them] use the serial number of the machine in question then one can order the exact part required.

 

[mr m]

I've found those suffix numbers to be confusing also and no, they don't have to be an exact match.

I buy my screens mostly from laptopscreen.com. I always take the part number from the back of the defective panel and the notebook manufacturers model numbers. I then cross-check them on laptopscreens web page.

Here are some FAQS from laptopscreen. http://www.laptopscreen.com/English/section/Articles/

They have an excellent warranty, fast shipping and knowledgeable tech support. They also ship from Gatwick which should help you guys East of the Atlantic.

 

[atlanticjim]

I had often had the problem of ordering a screen only to find that the supplier had substituted a similar screen which would either not mount or would not connect. I have even had the supplier send instructions how to adapt the screen to the laptop I was repairing.
After using many different suppliers I finally found a reliable one Vivo Technology