High-resolution spatial light modulator on glass for digital holographic display

Jong-Heon Yang; Ji Hun Choi; Jae-Eun Pi; Chi-Young Hwang; Gi Heon Kim; Won-Jae Lee; Hee-Ok Kim; Kyunghee Choi; Yong-Hae Kim; Chi-Sun Hwang

doi:10.1117/12.2517307

1 March 2019 High-resolution spatial light modulator on glass for digital holographic display

Jong-Heon Yang, Ji Hun Choi, Jae-Eun Pi, Chi-Young Hwang, Gi Heon Kim, Won-Jae Lee, Hee-Ok Kim, Kyunghee Choi, Yong-Hae Kim, Chi-Sun Hwang

Author Affiliations +

Proceedings Volume 10943, Ultra-High-Definition Imaging Systems II; 109430K (2019) https://doi.org/10.1117/12.2517307
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

A spatial light modulator (SLM) is the key component for a digital holographic display system. It requires both ultrahigh- resolution fine pixel integration and large-area panel to get a wide viewing angle and large realistic 3D images. Because these requirements collide with each other, it is very difficult to develop the digital holography system satisfying the standard of the general public. Unlike conventional SLMs, which are based on small size semiconductor ICs, we have developed larger size, highresolution SLM on glass (SLMoG) using both semiconductor and display fabrication technologies. 1-μm channel length oxide TFTs are integrated for pixel switching and the liquid crystal (LC) of high refractive index anisotropy was used to modulate the phase of incident light. Multiple high-speed interface boards and large channel driver ICs are used to drive large size holographic image data. 2.16-inch 16K SLMoG panel with 3-μm horizontal pixel pitch was successfully developed for the first time. Without the aid of additional instruments, it was possible to observe a simple 3D objects with the naked eye. For even wider viewing angle and larger size SLMoG, the proof of concept SLMoG panel for still image hologram with smaller pixel pitches was developed to evaluate cross-talk between adjacent LC pixels.

Conference Presentation

Citation Download Citation

Jong-Heon Yang, Ji Hun Choi, Jae-Eun Pi, Chi-Young Hwang, Gi Heon Kim, Won-Jae Lee, Hee-Ok Kim, Kyunghee Choi, Yong-Hae Kim, and Chi-Sun Hwang "High-resolution spatial light modulator on glass for digital holographic display", Proc. SPIE 10943, Ultra-High-Definition Imaging Systems II, 109430K (1 March 2019); https://doi.org/10.1117/12.2517307

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