ENVY 15t-q100: upgrading LCD display

I can't find the original part number of the current display (without disassembling the laptop from which I'm typing right now...) however HP publishes an internal part number:

720552-001 SPS-DSPLY HU 15.6 FHD BV Monitor Display 284 N COMPLY_2.05 N

[1] Manual
[2] Part Surfer J4Y24AV part list

According to this post, this particular laptop is compatible with the LP156WF4 SL B6 display, with these specifications.

Questions:
[.] (not really a question)Does the 15t-q100 have an alternate model number, to make searching for compatible displays easier?
[2] Can anyone recommend alternative tried&tested IPS panel replacements for this laptop? Or, given a part number, how do I even go about finding compatible displays?
[3] Is the LP156WF4 SL B5 compatible as well? It is identical to the B6 in every respect, except that it draws an extra watt of power. I don't know if this matters....

 

1. Yes; run Monitor Asset Manager (MonInfo), you want " Model name" and " Manufacturer".
2. If the LP156WF4-SLB6 works, then so would this list (non exhaustive), but verify current panel first.
3. No, as long as input voltage is identical (3.3V/5V). Worst case it's a bit dimmer at maximum brightness.

Unfortunately, MonInfo can't pull model nr. in all instances. Sometimes the panel's EDID (on chip) is overridden by the bios or vbios, if this happens you'll see 'HP' or 'Dell' as the panel's manufactures, which is nonsense. They do this for inventory purposes (HP model xyz points to various actual panels, much like the list above) and, perhaps, to whitelist panels. The latter might be unintended, but since the EDID contains resolution and timing settings this will limit the replacement panel to values contained in the (v)bios, even though the system's perfectly capable of running different values.

 

Thanks, that's a nifty app. According to Registry-Active (no real-time EDID, I guess), the monitor P&P ID is AUO32ED. The modeline (1920x1080 @ 60Hz) is:

"1920x1080" 140.000 1920 1968 2068 2100 1080 1083 1084 1110 -hsync -vsync

According to this post, AUO32ED and B156HTN03.2 refer to the same product. I haven't found a list of compatible displays. Unfortunately, AUO's website has zero information.

Questions:
[0] What is the real model number of AUO32ED?
[1] So the LP156WF4 SL B6 is compatible?
[2] If not, how can I find a compatible list of panels? Just match voltage, pinout, and size?

 

0.) Only absolute certainty is looking at sticker on back of lcd. AUO32ED is a PnP id, think chances are pretty good it's that particular AUO though. Wouldn't actually matter if they used a different one in your model; it'd have to be compatible with the B156HTN03.2 at the very least; so same specifications as that one.
1.) Pretty much, though it does use a different connector. To be absolutely certain; try to find a manufacturer's spec. sheet (pdf) from one of the panels in this list (connector of your AUO) and one from this list (LG model). Panelook charges $'s for them, but many can be found for free elsewhere. Do search 900p+ and 14.0"+ panels only, otherwise they'll lack some of the pins.
2.) Partly, also interface type (LVDS/eDP), colour (6/8/10-bit), backlight type (CCFL/WLED/RGB LED) and connector location.

Unfortunately not all these can be specified on Panelook:



Next is to shift out 8-bit panels (yours is a 6-bit system/laptop):



Suggestion for a future laptop; 8 or 10-bit . C/R is contrast ratio; higher = better and cd/m2 is brightness; higher=better. Oh, the 8-bits are 16.7M colour, whereas 6-bit is 262K.

Add what's left to compare and then ditch everything not 40-pins and 0.5mm pitch. Will leave ~20 panels. Now, will haphazard a guess here; you chose that LG because it is an IPS and ' IPS = good'? <- if so, permit me to correct that.

Compare the LP156WF4-SLB5 (IPS) vs. B156HW01 V4 (TN). The grey lines are the extent of adobe RGB gamut, coloured shape is what the panel in question can cover:



Panelook of compare: TN03.2, SLB5 and HW01 V4.



Thing is; panels like that 03.2 have given TN a bad rep. Viewing angles ~45° are abysmal, true, but those of the V4 are better than adequate and, more important, gamut of high-end TNs surpasses every laptop IPS easily (DCs excepted). Example here is rather extreme though; the V4 is a spectacular panel. Does draw quite a bit more power so it's likely it'd run a bit dimmer on your system, but still ... This is sRGB for al three (smaller gamut than adobe RGB):



One more thing; connector location differs. The 03.2 and SLB5 are bottom-right and the V4 is bottom-left. Cable has to be long enough or you'd need an extender cable to bridge the difference.