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Proceedings Paper • new

High-resolution spatial light modulator on glass for digital holographic display
Author(s): 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
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Paper 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.

Paper Details

Date Published: 1 March 2019
PDF: 7 pages
Proc. SPIE 10943, Ultra-High-Definition Imaging Systems II, 109430K (1 March 2019); doi: 10.1117/12.2517307
Show Author Affiliations
Jong-Heon Yang, Electronics and Telecommunications Research Institute (Korea, Republic of)
Ji Hun Choi, Electronics and Telecommunications Research Institute (Korea, Republic of)
Jae-Eun Pi, Electronics and Telecommunications Research Institute (Korea, Republic of)
Chi-Young Hwang, Electronics and Telecommunications Research Institute (Korea, Republic of)
Gi Heon Kim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Won-Jae Lee, Electronics and Telecommunications Research Institute (Korea, Republic of)
Hee-Ok Kim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Kyunghee Choi, Electronics and Telecommunications Research Institute (Korea, Republic of)
Yong-Hae Kim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Chi-Sun Hwang, Electronics and Telecommunications Research Institute (Korea, Republic of)


Published in SPIE Proceedings Vol. 10943:
Ultra-High-Definition Imaging Systems II
Seizo Miyata; Toyohiko Yatagai; Yasuhiro Koike, Editor(s)

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