Hello everyone,
I am a young engineer looking for some help.
I am trying to reverse-engineer a Samsung 15.6in TFT-LCD (Model No.: LTN156AT09-H03), that a scavenged from an old laptop I had laying around. I downloaded a PDF of its specifications, which is very detailed, but I am still unsure on how to go about my project. What I want to do, is re-purpose the screen to use it as a screen for my Raspberry Pi, sort of a future MAME arcade project. From what I have gathered from the PDF, I think it has both the Driver and LCD Driver already. (I know it has the LED Driver at the very least.)
I provided some information below, (some of what the PDF tells me about it and the pin layout) and my question is, is everything already here that I need to use this right away? and if so, for a composite input, which pins do I need to use, and which pins do I need to use for the LED backlight? Any help would be very much appreciated. If there is anymore information I can provide from the PDF to help, I would be glad to retrieve it for you.
The PDF shows this:
LED Back Light with embedded LED Driver, DE (Data enable) only mode, 3.3V LVDS Interface, Onboard EEDID chip, and Green product (RoHS and BFR/PVC free compliance) under the features.
Under general information is also says that the driver element is "a-Si TFT active matrix".
Here is the pin layout:
(I was having trouble trying to copy and paste the pin layout because it was in a grid so it copied backwards.)
Input terminal pin assignment (LVDS, Connector : 20455-040E-0 by I-PEX or equivalent )
Pin# - Signal - Description
38~40 VBL+ LED Power Supply 6V~20V
37 NC No Connection
36 BL_Enable BL On/Off (On:2.0~3.3V, Off: 0~0.5V)
35 BLIM PWM for luminance control (200~1KHz, 3.3V, 10~100%)
34 NC No Connection
31~33 VBL- LED Ground
29~30 NC No Connection
28 GND Ground
26~27 NC No Connection
25 GND Ground
23~24 NC No Connection
22 GND Ground
20~21 NC No Connection
19 GND Ground
18 ClkIN+ +LVDS differential clock input
17 ClkIN- -LVDS differential clock input
16 GND Ground
15 Rin2+ +LVDS differential data input (B2-B5, HS, VS, DE)
14 Rin2- -LVDS differential data input (B2-B5, HS, VS, DE)
13 GND Ground
12 Rin1+ +LVDS differential data input (G1-G5, B0-B1)
11 Rin1- -LVDS differential data input (G1-G5, B0-B1)
10 GND Ground
9 Rin0+ +LVDS differential data input (R0-R5, G0)
8 Rin0- -LVDS differential data input (R0-R5, G0)
7 SDA DDC Data
6 SCL DDC Clock
5 NC No Connection
4 DVDD DDC 3.3V power
2~3 AVDD Power Supply, 3.3V ( typical)
1 NC No Connection
