helgePanel Catalogization
This page lists information on a 15.4" laptop display panel. For more details and other panels, check out https://hackaday.io/project/179868-all-about-laptop-display-reuse/discussion-163462 .
Panel ID
Cable Assembly
The cable came with an Acer Aspire 5020 series model MS2171 laptop and combines display and backlight cables.
Panel Connector
Backlight Inverter
It seems Monolithic Power Systems made the MP1017EF converter IC as a proprietary solution, no datasheet seems to exist. No inductor on the board -> no buck converter + royer converter approach. Some of the components on the right are for tube current measurement.
Perhaps MP1017EF is just a customized version of MP1015EM, for which a datasheet exists on the web (again not on monolithicpower.com ...):
"MP1015 Full System Precision CCFL Driver:
The MP1015 is a Power IC that offers a true complete solution for driving a Cold Cathode Fluorescent Lamps (CCFL). This Power IC converts unregulated DC voltage to a nearly pure sine wave required to ignite and operate the CCFL."
"MP1015 uses a resonant topology for switching the outputs. The device will continue to switch at the resonant frequency of the tank until the strike voltage is achieved."
The pinout might be compatible and thus be helpful in reconstructing/verifying the connector pinout of the inverter board:
Pinouts
Following the traces from the connector to the converter IC visually and measuring resistance with a multimeter, the following pinout was found:
| CN1 Pin | MP1017 Pin | Function |
| 1 | 7 | VBATT |
| 2 | 7 | VBATT |
| 3 | 4 | DBrt via 10k |
| 4 | 5 | EN via 100k |
| 5 | 9 | GND |
| 6 | 9 | GND |
[Here I had to delete and re-do the table because the WYSIWYG editor does not allow one to get the cursor past a table if the table is the last item in a page. Copied and pasted tables are completely garbled, so one has to completely redo a table to recover the page document. Thank you #Hackaday.io Project for not fixing this bug for more than 3 years.]
Panel Pinout
Thanks to a related discussion on stackexchange the pinout is inferred below:
I'm sure it won't hurt to wire up the GND lines between the differential pairs. Interestingly, DVR_CLK is omitted, as is GND on pin 1. Some cables connect pin 1 to VCC, so care must be taken not to create shorts later. The rest of the table of the LTN154AT07 panel seems to be in agreement with the LP154W01 connector, down to the block of NC pins 20-30. U1 pin 7 is connected to GND.
Discussions
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These are some great pictures!, the fourth picture is especially good, as it shows the power, LVDS lane and EDID pins on both the cable and the PCB!
These inverters don't commonly have datasheets, sadly, and neither do cables. [EDIT: wait, you mean the IC datasheet is missing? that is indeed sad.] My experience is that it should be simple to reuse the original inverter, as it seems to be of the EN-ADJ type (basically, needs two logic-level control signals, one low/high enable and one PWM for brightness) - and I'd even guess it's going to be doable to reuse the original cable, as long as you can get a 2x8 (or larger) 2mm pin socket and aren't afraid to do a bit of multimeter probing and soldering!
Are you sure? yes | no