HDMI, VGA to LVDS, TTL interface converter
The interface converter is mainly designed for TFT LCD screens. Input signal types: digital high-definition (HDMI), analog (RGB, VGA), PAL/NTSC composite video/VIDEO (default NC).
Specifications of HDMI, VGA to LVDS, TTL driver board
Input single
High-definition HDMI for PC graphics cards
Output single
LVDS interface, TTL interface
operating temperature
Wide temperature working range: -20℃ ~ +70℃
OSD adjustment function
Connect the OSD function adjustment board to adjust the display parameters
Interface cpnverter parameters
parameter
1. The board supports a wide voltage input of 8V~20V; the typical value is 12V (when the power supply of the screen is 12V, the power supply of the board must be 12V)
2. The board has its own LED backlight drive circuit; it supports 9~25V voltage drive for small and medium-sized LED backlights.
3. The board has its own T-CON circuit, which can directly drive small and medium-sized LVDS/TTL LCD without T-CON, and supports PWM duty cycle to adjust the brightness of the backlight.
4. Resolutions of high-definition HDMI and analog RGB (VGA) adapted to PC graphics cards: 480×272, VGA, SVGA, XGA,
Driver board test points
| Label | item | min | typ | max | unit | voltage ripple |
| 12V | 12V test point | 10.8 | 12 | 13.2 | V | 400mV |
| 5V | 5V test point | 4.75 | 5 | 5.25 | V | 200mV |
| 3.3V | 3.3V test point | 3.13 | 3.25 | 3.46 | V | 150mV |
| 1.8V | 1.8V test point | 1.7 | 1.75 | 1.85 | V | 100mV |
| GND | GND | – | – | – | V | – |
| BL-EN | BLU control | 0.1 | – | 4.8 | V | – |
| BL-PWM | BLU PWM | 0.1 | – | 4.8 | V | – |
Interface Description
| iten | Function | Connector specification | Remark |
| CN1 | 12V DC power input | 4P, 2.0Pitch, single row, 180°, socket (JST/CVILUX) | |
| CN2 | 12V DC power input | positive inside and negative outside, positive outer diameter φ2.0mm, negative inner diameter φ5.5mm | |
| CN12 | HDMI input | HDMI-19pin,90 degrees | |
| CN5+CN6 | TTL/output interface | 2×19P, 2.0pitch, double row, 180°, socket (JST/CVILUX) | |
| CN3 | OSD adjustment keyboard interface | 10P, 2.0Pitch, single row, 180°, socket (JST/CVILUX) | |
| CN26 | Infrared control interface | 3P, 2.0Pitch, single row, 180°, socket (JST/CVILUX) | |
| CN8 | VGA input standard socket | DB15FLC, 90°, blue, with screw (JST/CVILUX) | |
| CN9 | VGA input replacement plug-in | 12P, 2.0Pitch, single row, 180°, socket (JST/CVILUX) | |
| CN16 | LVDS-FFC0.5mm-40pin | LVDS-40PIN, default 8bit output | |
| CN11 | Stereo/left and right channel audio output | 4P, 2.0Pitch, single row, 180°, socket (JST/CVILUX) | |
| CN17 | TTL-FFC0.5mm-50pin | TTL-50PIN default 8bit output | |
| CN10 | AV input | 2P, 2.0Pitch, single row, 180°, socket (JST/CVILUX) |
FPC/cable/interface customization
Customize the length, width and thickness of FPC or cable, adjust the pin arrangement according to the interface type, and select the appropriate connector. Make your display or circuit board simple and safe with an excellent FPC solution.
Touch screen or cover glass added
A touch screen can be added according to your requirements, there are three options: resistive touch screen, capacitive touch screen, infrared touch screen. Or add protective glass as needed
Customized Display Optical Parameters
Display screens with different optical parameters can be designed according to needs, such as brightness, color gamut, response time, gamma and other parameters, and anti-glare, anti-fingerprint coatings, etc. can also be added
Customized HDMI to MIPI, RGB, LVDS boards
The circuit board we designed can convert the interface of your display into an HDMI interface. If your product does not have any display control capabilities, you can use our serial display and only need to use simple commands to control the displayed content through RS232/458
