Yongjoo Song is a prominent inventor based in Hwaseong-si, South Korea. He has made significant contributions to the field of display technology, holding a total of 10 patents. His work focuses on enhancing the performance and efficiency of display panels.

Latest Patents

Among his latest innovations is a display driving circuit and its operating method. This circuit is designed to drive a display panel that includes data lines, sensing lines, and sub-pixels connected to these lines. The display driving circuit features a data driver integrated circuit that drives the data lines. This integrated circuit comprises a driving block and a sensing block. The driving block includes multiple digital-analog converters (DACs) that perform digital-analog conversion on received sub-pixel data to generate output voltages. These output voltages are then provided to the data lines. The sensing block measures grayscale voltages output from the DACs in one operation mode and pixel voltages of the sub-pixels in another operation mode.

Another notable patent involves gamma tap voltage generating circuits and display devices that incorporate these circuits. This gamma tap circuit consists of a first gamma division circuit that generates a first gamma tap voltage through voltage division of upper and lower gamma tap voltages. It operates in sync with a first clock signal and its complementary counterpart. Additionally, it includes a second gamma division circuit for generating a second gamma tap voltage and a third gamma division circuit for producing a third gamma tap voltage, all synchronized with clock signals.

Career Highlights

Yongjoo Song is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in display technology. His work has significantly impacted the development of advanced display systems.

Collaborations

He collaborates with talented coworkers, including Chulho Choi and Hajoon Shin, who contribute to the innovative projects at Samsung Electronics.

Conclusion

Yongjoo Song's contributions to display technology through his patents and work at Samsung Electronics highlight his role as a key innovator in the field. His advancements continue to shape the future of display systems.

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