This guide serves as a comprehensive reference for the 51-pin LVDS pinout, explaining its structure, signal channels, bit-depth configurations, and troubleshooting methods. 1. Overview of the 51-Pin LVDS Interface
To accurately read a 51-pin datasheet, you must understand how the pins are structurally grouped: Power and Ground (Pins 1–8, 44–51)
If you have a 51-pin LVDS cable or panel, check the physical connector against these common series:
Usually configured as Dual-Channel (Even/Odd pixels) to split the data load and support higher refresh rates and resolutions. 2. Standard 51-Pin LVDS Pinout Configuration 51 pin lvds pinout datasheet
💡 Most 51-pin panels operate on a 12V logic rail, but the differential signals themselves (the pairs) operate at a very low voltage swing (approx. 350mV). Signal Type: Differential Pair (Positive and Negative).
For 8-bit panels, two channels are used per pixel (odd/even or separate ports).
| Pin | Signal | Pin | Signal | |-----|--------------|-----|----------------| | 1 | VCC (3.3V) | 26 | GND | | 2 | VCC (3.3V) | 27 | TX0- | | 3 | VCC (3.3V) | 28 | TX0+ | | 4 | GND | 29 | GND | | 5 | TX0- (A0-) | 30 | TX1- | | 6 | TX0+ (A0+) | 31 | TX1+ | | 7 | GND | 32 | GND | | 8 | TX1- (A1-) | 33 | TX2- | | 9 | TX1+ (A1+) | 34 | TX2+ | | 10 | GND | 35 | GND | | 11 | TX2- (A2-) | 36 | TXC- (Clock) | | 12 | TX2+ (A2+) | 37 | TXC+ (Clock) | | 13 | GND | 38 | GND | | 14 | TXC- (Clock) | 39 | TX3- (Optional)| | 15 | TXC+ (Clock) | 40 | TX3+ | | 16 | GND | 41 | GND | | 17 | TX3- (B0-) | 42 | Backlight VCC | | 18 | TX3+ (B0+) | 43 | Backlight VCC | | 19 | GND | 44 | Backlight GND | | 20 | TX4- (B1-) | 45 | Backlight GND | | 21 | TX4+ (B1+) | 46 | BL Enable | | 22 | GND | 47 | BL PWM Dim | | 23 | TX5- (B2-) | 48 | I²C SCL | | 24 | TX5+ (B2+) | 49 | I²C SDA | | 25 | GND | 50 | Touch IRQ | | | | 51 | Touch Reset | This guide serves as a comprehensive reference for
Signals for backlight control (on/off, PWM) and EDID/I2C communication.
The most significant bits (MSBs) of color are mapped to the higher numbered data pairs.
If you need to verify specific panel compatibility or map out a custom conversion cable, let me know: The of your panel and your motherboard The voltage requirements printed near your panel connector Your desired refresh rate (60Hz vs 120Hz) Signal Type: Differential Pair (Positive and Negative)
Always turn off the power supply before checking continuity. Pins 1-5 carry the primary current. A short between Pin 5 (VCC) and Pin 7 (GND) will instantly destroy your scalar board or T-CON.
): Typically spans between , centered around a common-mode voltage ( VOScap V sub cap O cap S end-sub
A connector is primarily used in Full HD (1080p) LED and LCD TV panels, particularly those from manufacturers like Samsung and LG . Unlike standard 30-pin connectors, the 51-pin interface supports dual-channel 10-bit data transmission, allowing it to handle higher resolutions and a larger color gamut (up to 1.07 billion colors). Typical 51-Pin LVDS Pinout Layout
: Innolux G170EG01 V1 (17", 1280×1024 dual LVDS)