Advanced VR and AR Displays: Improving the User Experience

Ha, Juhwa; Kim, Sangho; Song, Dae-Ho; Park, Sang-Ho; Park, Jintaek; Choi, J. S.; Lee, Changhee

doi:10.1002/msid.1378

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…39 The chip size contributing to the display resolution should be small because the human eye can distinguish display quality when it is close. 40,41 A typical dry etching process using ICP-RIE allows the chip size of InGaN-based LED to be easily controlled to below 10 lm, which is desirable for use in lLED displays. However, ICP-RIE, which is conducted with plasma, can unintentionally induce surface damage at the sidewalls of lLEDs and thus degrade their efficiency.…”

Section: Introducing Efficiency Degradation Of Lleds a Non-radiative ...mentioning

confidence: 99%

Recent advances in micro-pixel light emitting diode technology

Park,

Pristovsek,

Amano

et al. 2024

Applied Physics Reviews

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Display technology has developed rapidly in recent years, with III–V system-based micro-light-emitting diodes (μLEDs) attracting attention as a means to overcome the physical limitations of current display systems related to their lifetime, brightness, contrast ratio, response time, and pixel size. However, for μLED displays to be successfully commercialized, their technical shortcomings need to be addressed. This review comprehensively discusses important issues associated with μLEDs, including the use of the ABC model for interpreting their behavior, size-dependent degradation mechanisms, methods for improving their efficiency, novel epitaxial structures, the development of red μLEDs, advanced transfer techniques for production, and the detection and repair of defects. Finally, industrial efforts to commercialize μLED displays are summarized. This review thus provides important insights into the potential realization of next-generation display systems based on μLEDs.

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Section: Introducing Efficiency Degradation Of Lleds a Non-radiative ...mentioning

confidence: 99%

Recent advances in micro-pixel light emitting diode technology

Park,

Pristovsek,

Amano

et al. 2024

Applied Physics Reviews

View full text Add to dashboard Cite

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19‐4: Invited Paper: Digital Driving on Silicon Microdisplay for XR

Han,

Wang,

Wheelwright

2024

Symp Digest of Tech Papers

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Microdisplay on silicon backplane is a promising architecture for XR systems. While digital circuitry is advantageous on silicon backplane, digital driving display introduces visual artifacts. First, we investigated the mechanism and solution of visual artifacts relevant for XR displays. Next, we proposed a intraframe time warp (ITW) to compensate for visual artifacts from head motion. ITW provide benefits to µOLED displays in XR systems by utilizing the higher frequency of digital driving. Lastly, we studied a 4K resolution digital µOLED displays expecting more than 40% of power saving in driving. The proposed digital driving solution with ITW is advantageous in power consumption and visual performance, however, the development of related technology is crucial to build the system.

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