HeyLED 5m 4K HDR DCI-Certified Screen Powers HDR Grading at Two Beijing Post-Production Studios

Beijing Shangtian pioneers HDR post-production with a 5m 4K DCI-certified HeyLED cinema screen integrated into its DI grading suite
BEIJING, CHINA ( August 26, 2025 ) -

Beijing Shangtian and Direct Color Grading Film & Media Technology Co., Ltd., the renowned post-production studio behind Chinese blockbusters such as “The Battle at Lake Changjin” and “The Wandering Earth II,” has taken a pioneering step in HDR post-production by integrating a HeyLED 5-meter 4K DCI-certified LED cinema screen into its DI(Digital Intermediate) grading suite.

This installation marks a significant milestone for the film industry, showcasing how LED cinema technology is redefining HDR grading and creative workflows.

Meeting the Challenges of HDR Grading

As HDR content becomes increasingly central to cinematic storytelling, filmmakers face three major challenges in DI grading:

  • Accurate luminance and black levels: Traditional projection struggles to reproduce the full HDR brightness range, often compromising detail in highlights and shadows.
  • Color fidelity across wide gamuts: HDR demands precise reproduction of DCI-P3 color volume, which is difficult to achieve with conventional reference displays.
  • Consistency from grading to exhibition: Creative intent can be lost if the grading monitor is too small to show the impact of HDR highlights

    • HeyLED: A Game-Changer for Post-Production

    The HeyLED cinema screen resolves these challenges with industry-leading technology:

  • Pixel-level light control delivers true HDR contrast, from dazzling highlights to deep blacks.
  • Wide color gamut accuracy ensures every tone and saturation is faithfully represented, empowering colorists with full creative confidence.
  • Direct cinema reference allows filmmakers to grade on the same display format used for theatrical exhibition, preserving artistic vision from studio to screen.

    • Industry Recognition

    “With HeyLED, what we see in the grading suite is exactly what audiences will see in the cinema,” said Mr.Tang, the manager of Direct Color Grading Media. “This closes the gap between post-production and exhibition, giving filmmakers unprecedented creative assurance.”

    Setting a New Standard

    By adopting HeyLED, Shangtian sets a benchmark for the future of HDR post-production in China and beyond. The installation not only enhances efficiency and accuracy in the DI process but also represents a forward-looking investment in cinema’s visual storytelling.

    About Timewaying HeyLED
    Timewaying Technology Co., Ltd. is a leading national high-tech enterprise in digital cinema and immersive visual experiences. Its flagship HeyLED screen is the world’s most comprehensive DCI-certified LED display for cinemas, delivering exceptional HDR performance while preserving creative intent for exhibition and post-production. The company also develops cutting-edge.