Surface mount aluminum electrolytic capacitors are mainly responsible for power management, signal

 processing, and circuit stability in LCD displays. Their specific functions are as follows:

1. Power filtering and voltage stabilization

The driving circuit of LCD screens requires a stable DC power supply, and surface mount aluminum 

electrolytic capacitors, with their large capacity characteristics, can effectively filter out high-frequency 

noise and ripple in the power supply. For example, in LCD backlight modules, capacitors smooth

 voltage fluctuations through charging and discharging, ensuring stable current of backlight LEDs and 

avoiding screen flickering or uneven brightness.

2. Signal coupling and decoupling

In the signal transmission circuit between the LCD driver chip and the display screen, the surface 

mounted aluminum electrolytic capacitor serves as a coupling element, allowing AC signals to pass 

through and blocking DC components, ensuring accurate transmission of image signals. Meanwhile, 

its decoupling function can suppress interference between different circuit modules, preventing 

display ghosting or noise caused by signal crosstalk

3. Transient response and energy storage

When the LCD screen rapidly refreshes the image, the circuit will experience instantaneous current

 changes. Surface mounted aluminum electrolytic capacitors provide transient current compensation 

through rapid charging and discharging, ensuring stable operation of the driving IC under high loads, 

thereby improving the display effect of dynamic images.

4. Ripple suppression in backlight circuit

LED backlight power supplies often use high-frequency switching power supplies, and the combination

 of surface mounted aluminum electrolytic capacitors and low ESR (equivalent series resistance) 

solid-state capacitors can further reduce high-frequency ripple, electromagnetic interference (EMI) 

and heat loss of the screen.

5. Extend the lifespan of equipment

Compared to traditional plug-in capacitors, surface mount aluminum electrolytic capacitors have a

 more compact size and better high-temperature resistance (some series support -55 ℃~+125 ℃), 

which can adapt to the narrow space and long-term operating environment inside LCD displays, 

reducing the risk of equipment failure caused by capacitor bulging or failure.

summarize

Surface mount aluminum electrolytic capacitors, with their advantages of small size, large capacity, 

and high cost-effectiveness, have become the core components of power management and signal 

processing circuits for LCD displays. Its application is directly related to the display quality, power 

efficiency, and long-term reliability of the screen. With the development of LCD technology towards 

ultra-thin, the high-density packaging characteristics of surface mount aluminum electrolytic

capacitors (such as size 5 of φ 4 × 5.4mm) will further promote the lightweight design of display

 devices.

About Us

Guangdong Fulong Electronic Technology Co., Ltd. is a private high-tech enterprise specializing in the research and development, manufacturing, and sales of aluminum electrolytic capacitors, certified by IATF16949，ISO9001, ISO14001, and ISO45001. The company has a building area of 17000 square meters and more than 50 automated production lines; The total investment is 50 million yuan (RMB), with more than 100 employees, including more than 20 engineering and technical, quality management, and production management personnel. The annual production of capacitors (4 * 5.4~16 * 21.5) is about 400 million pieces; Our products are mainly sold to domestic and international markets, and we strive to promote our company's products globally.

Jiangxi Fulong Electronic Technology Co., Ltd. is a wholly-owned subsidiary of Guangdong Fulong Electronic Technology Co., Ltd. established in Hukou County, Jiangxi Province with a total investment of 500 million yuan. It has 50 fully automated production lines and an annual output of approximately 1.2 billion capacitors (4 * 5.4~16 * 21.5).

Fulong Group has an international professional core technology research and development team for aluminum electrolytic capacitors and a global sales network. Rich experience in the design, research and development, and production management of aluminum electrolytic capacitors. The R&D team follows the technical design theory of aluminum electrolytic capacitors, complies with international and domestic legal and regulatory requirements (RoHs), and adheres to the highest international quality standards

Fulong Group has high-quality and stable raw material supply partners, and key raw materials (such as aluminum foil, electrolytic paper, etc.) are selected from well-known Japanese and Korean companies (KJCC KDKNKK, etc.), ensuring reliable and stable advantages in product quality, environmental protection, safety, and energy conservation.

Fulong Group has a group of highly qualified professional technicians and management personnel who can produce various series of sheet aluminum electrolysis products according to customer requirements. The products include high-frequency low impedance, low leakage, wide temperature, extremely low impedance, non-polar, ultra long life, medium high voltage long life, high reliability and other new types of special requirements for surface mount products; At the same time, the company's products can withstand a soldering temperature of 260 ℃, meeting the lead-free reflow soldering technology required for SMT in the whole machine factory. All technical indicators of the products have reached or exceeded the international level of similar products.

While strengthening management and expanding operational scale, Fulong Group is also committed to improving its competitiveness and customer satisfaction, continuously and steadily increasing customer and social trust, continuously meeting market demand, further optimizing environmental management and expanding social contributions, and developing together with the electronics industry.

Guangdong Follon Electronic Technology Co., Ltd.

Jiangxi Follon Electronic Technology Co., Ltd.

Address: Building 3, South District, Haishan Science and Technology Park, Hukou County, Jiujiang City, Jiangxi Province

www.follon.com

Professional manufacturer of high-quality surface mount electrolytic capacitors