Light field display: Difference between revisions - VR & AR Wiki - Virtual Reality & Augmented Reality Wiki

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== Comparison with Other 3D Display Technologies ==

{| class="wikitable"

|-~~----------------------------|------------------|---------------------------------|----------------------|--------------------|--------------------------------------------------------|~~

|+ Comparison of Key 3D Display Technology Characteristics

! Technology

! Glasses Required

! Natural Focal Cues (Solves [[Vergence-accommodation conflict|VAC]])

| '''[[Volumetric Display]]''' | No | Yes | Yes | 360° potential | Limited resolution, transparency/opacity issues, bulk |

! Full Motion [[Parallax]]

| '''Holographic Displays''' | No | Yes | Yes | Often Limited | Extreme computational demands, speckle, small size |

! Typical [[Field of view|View Field]]

! Key Trade-offs

|-

| '''[[Light Field Display]]'''

| No (often)

| Yes

| Limited to Wide

| Spatio-angular resolution trade-off, computation needs

|-

| '''[[Stereoscopic display|Stereoscopic Displays]]'''

| Yes

| No

| No <small>(requires head tracking)</small>

| Wide

| VAC causes fatigue, requires glasses

|-

| '''[[Autostereoscopic display|Autostereoscopic (non-LFD)]]'''

| No

| Limited <small>(often Horizontal only)</small>

| Limited

| Reduced resolution per view, fixed viewing zones

|-

| '''[[Volumetric Display]]'''

| No

| Yes

| 360° potential

| Limited resolution, transparency/opacity issues, bulk

|-

| '''[[Holographic display|Holographic Displays]]'''

| No

| Yes

| Often Limited

| Extreme computational demands, [[Speckle pattern|speckle]], small size typically

|}

LFDs offer a compelling balance, providing natural depth cues without glasses (in many formats) and resolving the VAC, but face challenges in achieving high resolution across both spatial and angular domains simultaneously.<ref name="Huang2014EyeglassesFree"/><ref name="Lanman2020NearEyeCourse"/>