Polcd 3.5 inch TFT Display ODM Circuit Board Manufacturer USB Mobile Charger PCBA Circuit PCB Assembly Board

LCD Module PCB: The Neural Hub of Display Systems
An LCD Module Printed Circuit Board (PCB) is a highly specialized multilayer circuit board that serves as the electronic interface, signal processor, and power distributor for liquid crystal display (LCD) modules. It transforms raw digital data from a host device (e.g., smartphone SoC, automotive ECU) into precisely timed analog/digital signals that physically actuate the LCD panel’s pixels.

What's Typically on it:

Timing Controller (T-CON) Chip: The main brain managing signal timing, data mapping, and often image processing.
Power Management ICs (PMICs): Generate the required voltages.
Connectors: For the host interface (input) and the LCD panel (output).
Passive Components: Resistors, capacitors, inductors for filtering, signal conditioning, and power regulation.
(Optional): LED driver ICs for the backlight, touch controller ICs, memory, or other supporting circuitry.

Crucially: It is not the glass display itself, but the circuit board attached to it within the module assembly.

We are a high-end technology manufacturer of TFT displays, headquartered in Shenzhen, Guangdong, China. Shenzhen P&O Technology Co., Ltd was established in 2008. It has strong automated production equipment, R&D and production teams, and strict quality management ISO 9001, ISO 14001, RoHS, REACH and other certificates. Our main products are TFT Display, LCD Modules, Touch Panel. The factory has a modern production dust-free workshop of more than 5,300 square meters and more than 330 employees. Our production capacity can reach 700,000 pcs/Month.

Our products are widely used in medical equipment, industrial instruments, telecommunication terminals, smart home and smart wearable device, aviation, automotive, military, retail, gaming and other fields.

Based on solid professional knowledge, advanced equipment and production technology, our engineering expert team constantly explores the latest technology and market trends, provides the highest quality personalized service and customized design solutions, we have become important strategy partners of our worldwide customers. Good faith, excellent service and win-win concept is our company core value. Our mission is to be reliable and trustable TFT LCD display module customization specialist.

Contact: Anna Hu
Phone: 008613714394335
Tel / Fax: +8675521011746
E-mail: anna@polcd.com

China address: 2nd Floor, Building C, No. 416 Huarong Road, Shuiwei Community, Dalang Street, Longhua District, Shenzhen, Guangdong, China

German address: Langbergring 24 21033 Hamburg Germany

Production Equipment Scale

TFT LCD display is a widely used display technology in modern electronic devices, which offers high definition, fast response time, and low power consumption. To produce TFT LCD displays, highly precise production equipment and complex manufacturing processes are required. Therefore, TFT LCD factories usually have advanced equipment and technology to ensure high-quality and high output. These factories involve multiple production steps, including cleaning, cutting, and coating of glass substrates, deposition, photolithography, and etching of thin films, and utilize automated control systems to ensure production stability and consistency.

Production Process

The production process of TFT LCD involves multiple steps, including substrate cleaning and cutting, coating, film deposition, photolithography, and etching. First, glass substrates are cleaned and cut into specific sizes. Then, a layer of transparent conductive material is coated onto the substrate surface. This is followed by deposition of several thin films, including the active layer, metal layer, and passivation layer, using specialized equipment. Photolithography and etching processes are then used to create the desired patterns on the different layers.

Finally, the substrates are assembled into a complete TFT LCD panel, including the addition of polarizer, backlight unit, and driver IC. The entire production process is highly precise and requires advanced equipment and technology to ensure high-quality and high-yield production.