Feature Request for 2nd Gen Framework 16" Laptop - WQUXGA Screen

The linked panel looks like it’d really fit the Framework 16 lid without a problem because the control board is slim and is located below the panel instead of on the backside. (See OLED panel vs. Framework 16 panel)

The connector on the panel is 40-pin 0.5mm pitch. I think, this adapter I found would be able to convert the Framework’s stock 40-pin 0.4mm pitch to fit the panel.

Now, I remember that OLEDs typically require a high-voltage power supply. From the link to the panel, I see the voltages it requires are “3.3/10.0V (Typ.)(VDD/VBAT)”. Now I have zero EE knowledge, but from the motherboard schematic, it seems that the eDP connetor has two voltage lines

  • +3V_EDP - which I suppose would always supply 3.3V (or 3.0V, which is close enough). This is probably the same as what the OLED panel spec calls “VDD”, so that one matches.
  • +DCBAT_LCD. This line is supplied by a component G516A1Y51U which seems to be the backlight power controller of some sort. So this is probably the VBAT from the panel’s spec.

From the motherboard schematic, I see that G516A1Y51U takes 19V from the battery as input, and, I guess, steps it down to some voltage. My first guess would be 3.3V as the mini-led panel I saw mentioned in other thread panel only requires that (seemingly??). But maybe, it’s actually 12V based on this comment.

Since the specs for the G516A1Y51U are not available, I wonder if someone from Framework could let me know, can the output of this chip be reprogrammed somehow to supply 10V for the OLED panel? Is this done by changing some resistor on the board, or can the EC change the output based on EDID it could get from the attached panel?

Sorry, if the answer is obvious in EC firmware, I haven’t yet looked through EC code, but I plan to do so.

Another possibility is that LCD panels take whatever voltage you give them on VBAT, if so I wonder if the OLED would be able to do the same.

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