In the blog post of Jan. 7th, we have explained the LG Phillips-made LCD screen model numbers. In this post, we will explain the logic behind composing a model number for LCD screens made by AU Optronics (more commonly referred to as AUO).

Every LCD made by AUO will have the model number starting with “B”. The next 3 numbers refer to the LCD screen size (e.g. B133 means the LCD is 13.3″; B121 is for a 12.1″ LCD, and so on).

New and old AUO models are slightly different. The older models have 2 letters after the screen size, and the newer models have 3. Example of a model number: B156XW01 v.1 (old); B156HTN01.1 (new).

The next letter after the size denotes the screen resolution:

X = 1366×768
R = 1600×900
H = 1920×1080

The next letter after the resolution tells the LCD type – if it is TN or IPS:

T= TN (regular view)
A = IPS (wide view)

The next letter after the type tells if the LCD is made for a touchscreen laptop:

N = no touch screen
T = touchscreen

The digits following after the touchscreen parameter is for the revision of the LCD. They do not have a particular meaning, and they are assigned in a numerical order, as the LCD’s are being produced.

Next is HW number – sometimes important (LCDs may have different brackets alignment, different video connector and/or pins, special EDID, etc).

In most cases, it is best to order according to the LCD model number. If you are unsure what LCD screen you need to order, make sure to contact us prior to placing your order.


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  2. Holger Moser

    To be true, I do not intend to purchase a LCD display, but you may answer a question about a B150XG01 V.7 with a B150XG01 V.2 built in device (with the LCD connector on it). I think V.2 is the decisive Spec as the LCD connector is on it.
    This display of a broken Notebook is planned to be reused by means of a HDMI-DVI-VGA-Audio converter. The suppliers of those converters for the B150XG01 offer different sets of converters referring to panel types as B, N, Q, W and so on.
    My questions
    1. What do the letters for the panel type stand for, and are there essential differences?
    2. How can I extract that panel specification from the specs printed on the device?
    Would be glad if you could answer my questions.

  3. Hans-Juergen Schulten

    Do you can deliver a 4K optronics B173ZANO1.1 screen, may be directly from China.

    Best regards, HJ

  4. Josh

    My monitor is a touch screen au B140HAN03.0 but according to your explanation since mine has a N it should not be a touch screen but it is a screen . Lenovo Yoga 710 14IKB

  5. Nick

    What do the letters in the last bracket mean? I’m trying to find a replacement controller for a screen but i can only find a (TJ)(C3) when the screen ends in (TJ)(C1). Will this work?


      Thank you for contacting support, please provide the full screen model number. Sometimes the last 2 digits could mean a different version of mounting brackets for a screen, however we need the full screen model number to determine this.

  6. Angela

    I have a B140RW02, what does the W mean in this?


      For the older model styles, “2 letters” W denotes it is a TN display.

  7. Jesper

    Hi, I have an old touch screen but I dont have the drivers for it. I have Windows 10 pro and my au optronics screen has model number: T315HW02 V.0
    Can you please provide me with a working driver?

    Thanks in advance 🙂


      For updated driver we recommend you visit your devices website for driver updates or checking online sources for driver updates for your exact model.

  8. Michael

    there are AUO panels like B156HAK, or B156HTK.
    what does the ‘K’ stand for?


      These would be for the embedded touch type of screen.

  9. David

    i Currently have a B156XTN04.5 and i have a few questions:
    1) What does the 04.5 at the end mean?
    2) I would like to replace my current 768p TN panel with a compatible 1080p IPS panel, could you please recommend a new screen according to those specs? Also im not sure if i need a new eDP display cable as well as i cannot tell if my current one has 1 or 2 lanes

    My eDP display cable details are as follows:
    Nano CG510 EDP CABLE
    DC02001XL10 REV 0A
    Vendrcode MGE

    If i do need a new 2 lane eDP cable could you also recommend one? My laptop is a Lenovo ideapad 100-15IBD
    Thank You!


      The numbers following XTN do not have any specific meaning other than to denote a production run. As screens will be continuously produced over a period of time, some cases to improve on out dated components. There are some circumstances where a model is slightly different in where it has included mounting brackets or different pin connector location. Therefore we recommend when looking for a replacement screen for your laptop you reference your full screen model as our listings are based on compatibility.

      For a replacement Full HD IPS screen, they can be found here

      Lenovo laptops will often be equipped with universal cables, allowing you to upgrade from HD to Full HD without problem. We do not have the specifications of the cable you have to determine if this one is universal, however some online searches have resulted in no specific resolution format, therefore it seems this would be the universal type. It is recommended you contact Lenovo directly to confirm if your cable will support Full HD.

      1. David

        Alright, will do that. Thank you again for the screen link, this has been a HUGE help

  10. David

    Just asking for eductaional purposes but why did you choose the 4.0 HW1A variant over other 4.x and HWxA variants?

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