“To achieve this dream display, we first need cutting-edge semiconductor technology. This is grouped into four core areas,” explained Lee. “First, high speed serial interface for accurate and fast transmission of large amounts of display data. Second, high-performance data conversion between analog and digital. Third, resilient touch technology to allow a variety of user experiences. And finally, smart algorithms to help realize better image quality.”
High Speed Serial Interface
As technology advances the display resolution and frame rate increases, making the amount of video data needed increases significantly. For example, to implement 8K 120Hz with a 10-bit color a data transmission of around 120Gbps is needed.
Samsung has created its own interface protocols called USI-T and eRVDS; it was the first in the industry to mass produce the 4Gbps interface for televisions. To help reach the company’s goal for the Dream Display, Samsung has developed a roadmap to help advance interface speeds.
Video data is transmitted digitally from SoC. On the other hand, displays are driven by voltage or current signals that are in analog form. Image quality is determined by the accuracy of data conversion technology from digital data to analog data for the display.
Lee shared that, “For large OLED panels a special technique for sensing analog current signals and converting them to digital data for panel compensation is becoming the standard. Samsung display driver ICs are equipped with industry leading 10-bit data conversion technology. The Dream Display will have up to 14-bit resolution depending on the application making data conversion in the display driver IC the key technology for enabling this.”
For optimal display experiences for things like gaming, displays need to have a fast, seamless and smooth screen transitions in response to fingers or pens touching it. This requires responsive touch sensing technology.
“Samsung has developed the world’s first touch controller for flexible displays with a report rate of over 240Hz. This technology supports both touch and active pen on the displays,” Lee shared. “Samsung also has a responsive touch control solution that combines high signal-to-nose-ratio analog front-end circuit with its own smart algorithms to improve touch performance. Samsung’s OLED driver IC and touch sensing technologies combined with its display technology are helping displays reach new standards.”
Smart Algorithms Improve Image Quality
Samsung uses smart algorithms to create a new picture quality system to prepare for the Dream Display era. Three things Samsung is developing include:
- Super-resolution technology to convert low resolution images into 8K or higher.
- Deep color reconstruction to reproduce over one billion colors with exceptional accuracy.
- Content adaptive enhancements to create optimal image quality and personalized user experiences.
All of these algorithms will be combined with AI technology to build the ideal solution for a Dream Display.