LCD display with photo frame - unusual 40-pin interface

[up8051]

Hello,

I wanted to use a 6 inch 800x480 LCD display from a cheap photo frame.
I expected that there will be a display with a typical RGB interface (40 or 50 pins), i.e. RGB signals (6 or 8 bits per color), HSYNC / VSYNC (synchronization pulses) CLK (clock) and DE (Data Enable) and signals related to the power supply and LCD backlight.

Unfortunately, I had an unpleasant surprise, yes, the ribbon is 40-pin, but with a completely unusual set of signals.

Some technical details:
-foto frame based on the AMLOGIC AML6221 processor (unfortunately I have not found any documentation)
- display 6 inches 800x480 40-pin ribbon
- the display is labeled TL060W-V600-V2 (unfortunately there is no documentation here)

However, I managed to find a diagram of a similar frame based on the same processor:
https://usermanual.wiki/Document/texettf601tf602tf801tf802schematics.1012292288/view

Two things can be seen in the diagram:
- control signals for LCD are only RGB (6 bits each), DE and CLK are not HSYNC / VSYNC signals
- unfortunately, a large number of required supply voltages: AVDD, VCC VSN, SSP, VGH, VGL (similar to displays with a 50 pin ribbon).

And my question, has anyone met this type of LCD interface?
Is the DE signal immediately a synchronization signal and then the data for the whole image is sent?

Regards
JarekC

[langwadt]

I  believe it is sometimes called "DE mode" seems like all the timing is the same you just don't use the sync signals

[up8051]

Thanks.
I found a lot of information with the help of this phrase.

[Kelindev]

I pulled apart a cheap digital photo frame once and bumped into a similar 40-pin setup that didn’t match any standard I knew. Ended up tracing lines manually to figure out the signals. If you're just after a working photo frame without all the hassle, nixplay.com has some that are plug-and-play and save you from digging through weird old interfaces.