[NTLK] Photos of MessagePad display assemblies?

[Matthias Melcher]

> On 8. Feb 2025, at 03:16, Grant Hutchinson via NewtonTalk <newtontalk at newtontalk.net> wrote:
> 
> This might be a question that Frank or Matthias can answer ...
> 
> Does anyone have photos showing both sides of the display assemblies (digitizer/screen) from any of the following MessagePad models?
> 
> + OMP/MP100
> + MP110/120
> + MP130
> 
> Here’s why …
> 
> I’ve had bunch of Newton parts in a storage bin for years. These were included in a batch of Newton gear donated to me back in 2014. 
> Included in this collection of parts are several seemingly unused replacement display assemblies. The antistatic bags have the number “982-0199” written on them, but I haven’t been able to locate any information about Apple service parts with that number.
> 
> If I could compare the displays that I have with something that has already been documented, I won’t have to resort to disassembling several of my devices to identify them.

I don't have photos, but I could take some on Monday or Tuesday, probably of the MP2100 and eMate screens. I wrote some things into the Einstein source code files a while back when trying to find a replacement screen for the MP2100, and I know the line connections and protocols. Note that the MP2100 screen is *not* a grayscale screen. It's a black and white screen, and the Newton switches the pixels on and off at 5Hz, which works well because the original LCD is so slow. It's even possible (and likely) that all devices with the 480x320 resolution use the exact same screen.

//
// The original Newton MP2x00 is a black and white LCD screen with 480x320
// resolution and a removable backlight. Screen data is stored at 16 shades of
// gray in memory. The DMA hardware displays those shades of gray by turning
// pixels on and off at various pulse widths and pattern.
// The resistive touchscreen is glued to the front of the display. The viewing
// area of the display is 129mm x 87mm.
// The screen diagonal is 156mm or 6.15 inches.
//
// Markings on the display are 4C112522AH52, LCDFAT650MC, and M650-LOA, 93 11 18
// LM48019K STN480X C, 97H00928 a, 5.4"
//
// The display data is sent via a AWM 2896 80C VW 1 flat ribbon cable (20pin).
// Backlight and touchscreen use additional wires.
//