On August 27-29, 2024 Advanced Laser Technology Expo was held in Shenzhen Futian Convention and Exhibition Center, and the “WK Cup - OFweek 2024 Laser Industry Annual Award” sponsored by high-tech industry portal OFweek was also announced here. Tianhong Laser has successfully won the “WK Cup - OFweek2024 Annual Laser Industry Precision Laser Equipment Technology Innovation Award” with its “Laser PDLC Membrane Internal Engraving Equipment”.

In 2023, new energy electric vehicles are coming strongly. The panoramic sunroof is used in a large area, and in order to regulate the light intensity and aesthetics, it turns its back on the traditional blackout curtain method, and adopts the PDLC film for electronic dimming, which can realize the function of zoning and patterned dimming.

Technogical breakthrough

PDLC film is placed in two face-to-face ITO conductive film nano-liquid crystal material to form a sandwich structure, adjusting the electric field strength between the two layers of ITO, you can change the nano-liquid crystal material attitude direction, thus adjusting the amount of light transmission, the formation of a programmable grayscale pattern. Laser PDLC film internal engraving equipment is used to pattern the nano-liquid crystal material in the center sandwich of the PDLC film, and the laser PDLC film internal engraving equipment is used to separate the internal single-sided ITO conductive film to achieve electrical isolation.

Innovative Highlights

Conventional process is a single piece of ITO etching line zoning, and then laminated, the process there is environmental dust pollution, alignment accuracy is difficult to control, process complexity, etc., now the process is directly in the laminated sandwich film material on the finished product of etching, to ensure that the realization of the function of the zoning, thus solving the difficulties of the previous process, and at the same time enhancing the efficiency of the entire process.

Laser PDLC Membrane Internal Engraving Equipment

Technological achievement

1, ITO conductive film thickness  is 0.5um, liquid crystal layer thickness is 15um. During ITO film separation process, it can not hurt the liquid crystal material and cause dead crystals, affecting the beauty of the white screen;

2, Separation line width ≤ 15um;

3, Partition resistance ≥ 20 megohms;

4, Internal carving width 1200 ✖ 1600.

In the future, Tianhong Laser will continue to plough into technology research and development, keep the right and innovative, down-to-earth, to provide more efficient and flexible customized solutions for various industrie