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Electronics industry

Semiconductor Energy Laboratory Co. Ltd. Receives Patent for Advanced Display Device Technology

Strategic Insights

— 2 min read

Semiconductor Energy Laboratory Co. Ltd., a leading company in the field of semiconductor technology, has been issued a patent for its innovative display device technology. The patent, number 12446309, was filed on March 13, 2024, and published online on October 14, 2025. The inventors, Kawashima Susumu and Kusumoto Naoto, have developed a display device that utilizes a technique for forming a transistor using a metal oxide, which has attracted attention in the industry.

The display device, as described in the patent, comprises a first transistor and a plurality of pixels, each of which includes a second transistor, a third transistor, a fourth transistor, a fifth transistor, a first capacitor, a second capacitor, and an EL element. The patent provides detailed descriptions of the circuitry and wiring connections between the transistors and capacitors. The inventors claim that their display device has several advantages, including the ability to perform full-screen display without the need for a dedicated circuit, thereby reducing power consumption.

Key Takeaways:

  • The patent for the advanced display device technology was filed by Semiconductor Energy Laboratory Co. Ltd. on March 13, 2024, and published online on October 14, 2025.
  • The inventors, Kawashima Susumu and Kusumoto Naoto, have developed a display device that utilizes a technique for forming a transistor using a metal oxide.
  • The display device comprises a first transistor and a plurality of pixels, each of which includes a second transistor, a third transistor, a fourth transistor, a fifth transistor, a first capacitor, a second capacitor, and an EL element.
  • The patent provides detailed descriptions of the circuitry and wiring connections between the transistors and capacitors.
  • The display device has several advantages, including the ability to perform full-screen display without the need for a dedicated circuit, thereby reducing power consumption.
  • The patent includes 8 claims, which provide detailed descriptions of the display device and its operation.
  • The inventors have also described the background art of the invention, citing prior art and providing context for the development of the advanced display device technology.

Statistics:

  • Patent number: 12446309
  • Filing date: March 13, 2024
  • Publication date: October 14, 2025
  • Inventors: Kawashima Susumu and Kusumoto Naoto
  • Claims: 8
  • Description of the display device and its operation: detailed circuitry and wiring connections

Sources:

  • Kawashima, Susumu. Display device and electronic device. U.S. Patent Number 12446309, filed March 13, 2024, and published online on October 14, 2025. Patent URL (for desktop use only): https://ppubs.uspto.gov/pubwebapp/external.html?q=(12446309)&db=USPAT&type=ids

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