display / touch / bonding solutions
Custom LCD adapter boards convert legacy display signals such as RGB, LVDS, MIPI, and HDMI into compatible formats using bridge ICs, controlled impedance routing, and power management. They allow seamless upgrades of industrial, medical, and automotive displays without redesigning the main system, improving performance, reducing cost, and maintaining long-term supply stability through scalable OEM solutions.
(Edited on June 12, 2026)
RGB to MIPI conversion relies on a bridge IC that transforms parallel 24-bit RGB data into high-speed differential MIPI DSI signals. This serialization reduces pin count while increasing bandwidth efficiency.
Key technical principles include:
Parallel RGB input is clocked into a MIPI DSI transmitter IC.
Data is serialized into 1–4 differential lanes plus a clock lane.
Each lane can support up to 4.5 Gbps bandwidth.
PCB design requirements are critical:
Differential impedance: 100Ω ±10%.
Length matching: within 5 mils per pair.
Continuous ground plane with via stitching for signal return paths.
CDTech implements optimized layouts with tightly placed decoupling capacitors (10 nF–100 nF near power pins) and bulk capacitors (10 µF–100 µF at power entry). These ensure stable PHY operation and reduced noise, especially in high-reliability medical and industrial applications.
RGB to LVDS conversion uses an LVDS transmitter IC to convert parallel signals into low-voltage differential pairs, reducing EMI and cable complexity.
Core layout practices include:
100Ω differential impedance routing.
Trace spacing at least three times the trace width to minimize crosstalk.
Ground shielding between differential pairs.
A typical stackup used by CDTech enhances signal integrity:
| Layer | Function |
|---|---|
| Signal1 | High-speed routing |
| Ground1 | Reference plane |
| Power | Voltage distribution |
| Ground2 | Shielding |
| Signal2 | Secondary routing |
| Ground3 | EMI control |
This structure ensures minimal jitter and stable operation at resolutions like 1080p@60Hz. CDTech also integrates touch functionality and optical bonding to improve durability and readability in industrial environments.
MIPI to LVDS conversion requires a bridge IC combining a MIPI receiver and LVDS transmitter. These chips handle protocol translation and timing alignment.
Essential components include:
Multi-lane MIPI DSI receiver.
LVDS transmitter with dual-channel support.
LDO regulators for isolated power domains.
High-frequency decoupling capacitors.
PCB considerations:
Separate routing for MIPI and LVDS signals.
Controlled impedance for both interfaces.
Back-drilled vias to reduce signal reflection.
Precise length matching to control skew.
CDTech’s automotive-grade solutions support AEC-Q100 components and maintain signal skew within tight tolerances, enabling reliable integration into vehicle display systems.
HDMI conversion requires a receiver IC capable of decoding TMDS signals and outputting either MIPI or LVDS formats. The IC must also handle scaling and protocol adaptation.
Critical selection criteria:
HDMI version support (1.4 or 2.0).
Integrated scaler for resolution matching.
Output compatibility with MIPI DSI or LVDS panels.
HDCP support for protected content.
PCB design must include:
100Ω differential routing for HDMI lines.
Isolated power domains to prevent interference.
EMI shielding for compliance with regulatory standards.
CDTech designs industrial-grade HDMI adapter boards with stable 1080p output, robust EMI protection, and certification-ready layouts for global markets.
Voltage compatibility is essential when bridging interfaces with different logic levels. Adapter boards integrate power management and level translation to ensure safe operation.
Key elements include:
Voltage translators (e.g., 3.3V to 1.8V).
LDO regulators for multiple voltage rails (1.2V, 1.8V, 3.3V).
Bulk and decoupling capacitors for power stability.
The table below summarizes typical differences:
| Parameter | RGB Interface | MIPI DSI Interface |
|---|---|---|
| Signal Type | Parallel | Differential |
| Bandwidth | ~300 Mbps | Up to 4.5 Gbps/lane |
| Pin Count | 30+ pins | 4–8 lanes |
| Voltage Level | 3.3V TTL | ~1.2V differential |
CDTech ensures reliable voltage regulation and EMI control through optimized PCB layouts, making their adapter boards suitable for sensitive instrumentation and medical systems.
Thermal and environmental considerations are crucial for long-term operation in harsh conditions.
Design strategies include:
Thermal vias (10–20 mil diameter) under bridge ICs.
High-Tg PCB materials for thermal stability.
Industrial-grade capacitors rated for high temperatures.
Wide operating range from -30°C to +85°C.
CDTech integrates these features into its adapter boards, enabling compliance with industrial and medical standards while maintaining consistent performance in demanding environments.
"Adapter boards are not just signal converters—they are system enablers that preserve existing hardware while unlocking new display capabilities. At CDTech, precision in impedance control, IC placement, and power integrity directly impacts product reliability. Our experience shows that optimized adapter designs can reduce system redesign costs by over 20 percent while maintaining high-speed signal performance and long-term supply stability across industrial and medical applications."
Custom LCD adapter boards provide a cost-effective and scalable solution for upgrading display interfaces without redesigning the main system. By integrating bridge ICs, controlled impedance routing, and robust power management, they ensure high performance and compatibility across RGB, LVDS, MIPI, and HDMI standards.
CDTech stands out with advanced manufacturing capabilities, strict quality certifications, and flexible OEM/ODM services. For engineers and product developers, choosing a well-designed adapter board reduces development time, improves reliability, and supports long-term product lifecycle management.
CDTech typically offers a minimum order quantity starting at 50 units, with engineering samples available for validation before full production.
Samples are usually delivered within 7–10 days after schematic approval, depending on customization complexity.
Yes, many designs include support for capacitive or resistive touch panels, along with optional optical bonding for improved display performance.
Yes, CDTech designs comply with relevant standards such as ISO13485 and IATF16949, using components suitable for regulated industries.
CDTech provides long lifecycle support, including component sourcing strategies and EOL management to ensure availability for 5–10 years.
By continuing to use the site you agree to our privacy policy Terms and Conditions.
