On November 11, 2025, Ledman Optoelectronics held the "HD King Lengping Master" new product launch conference in Shenzhen, attracting more than 500 people from industry associations, university experts, mainstream media and national partners to participate on site. The multi-platform simultaneous live broadcast attracted the attention of the entire network. This new product, based on COB packaging and equipped with an AI low-power cold screen system, has pushed the LED display industry into a new era with a number of core technology breakthroughs.
Li Mantie, founder, chairman and president of Ledman Optoelectronics, proposed "eight core perception dimensions" and "five major technology evolution directions" for future LED displays at the press conference, providing new ideas for industry development. Guests such as Jiao Yang, deputy secretary-general of the World Ultra-HD Video Industry Alliance, and Sun Xiaowei, chair professor of Southern University of Science and Technology, affirmed the industry value of Ledman in terms of technology accumulation and foresight from the perspectives of industry development and technological upgrading.
In view of the current common pain points of LED displays such as black screens, signal interruptions, dead lights, and color distortion, Ledman's "HD King Cold Screen Master" provides systematic solutions. This product is based on the AI low-power cold screen system exclusively developed by Ledman, including three core technologies: Lingying AI low-power smart display, smart ultra-high-precision voltage control, and black-on-black lossless direct display.It achieves five major advantages: ultra-stable, ultra-high-definition, ultra-energy-saving, ultra-cool screen, and ultra-comfortable, adapting to the application needs of all scenarios.
At the press conference, three hard-core challenges visually verified the extraordinary strength of "HD King Lengping Master".
In the ultra-high-definition challenge, two products simultaneously displayed content while blocking the brand logo. Participants were blindly selected anonymously based only on the display effect. In the end, the "HD King Cold Screen Master" won with a high score of 189:88. Participants said that "the colors are more vivid and the details are clearer with the naked eye alone."
The energy-saving challenge uses a power bank with the same capacity. After lighting up at the same brightness for 40 minutes, the conventional COB product power bank runs out of power and goes black. However, Ledman HD Wang Lengping Master's power bank still has 50%+ power left. The actual measured data shows that the power consumption is only 155W/㎡, which is 50% less than similar products.
In the most visually impactful ice-melting challenge, an equal number of small icebergs were placed on the two products and lit simultaneously for 30 minutes. The icebergs on the conventional COB product melted away and water stains flowed along the screen; while the Ledman HD Wang LengScreen Master still has half of the ice cubes on his screen. According to the general manager of Ledman Optoelectronics Product Department, the surface temperature of the "HD King Cold Screen Master" screen is only 29.5°C, which is lower than the normal body temperature of the human body. According to the "ten-degree rule - for every 10°C increase in operating temperature, the expected service life is halved", low-temperature operation not only brings a comfortable touch feeling, but also significantly extends the service life, making it a veritable "sensory cold screen".
"The three challenges correspond to the product's three core advantages of image quality, energy saving, and cold screen." Zhou Jie, general manager of Ledman Optoelectronics Product Management Department, said that the advantages of the new product come from the exclusive AI low-power cold screen system. The three major technologies jointly build the "long-term use without failure" super stability of the cold screen master.
Favorable sales policies and product hard power jointly detonated the market. The exclusive booking discounts and guaranteed rights and interests released by Huanglongyuan, the domestic LED division of Ledman, received positive responses from partners. At the press conference, Chairman Li Mantie announced that the scheduled area of new products has exceeded 12,000 square meters, far exceeding expectations.
This new product launch by Ledman not only achieves a major breakthrough in COB technology, but also sets a new benchmark in the industry. With the launch of the national layout of "Cold Screen Master", LThe ED display industry will usher in new changes in energy saving, high definition, and stability. In the future, driven by both technological innovation and market demand, the LED display industry is expected to achieve higher-quality development.
ANNA