发明名称 |
CROSSTALK SUPPRESSION IN A DIRECTIONAL BACKLIGHT |
摘要 |
<p>Disclosed is a light guiding valve apparatus including a light valve, a two dimensional light emitting element array and an input side arranged to reduce light reflection for providing large area directional illumination from localized light emitting elements with low cross talk. A waveguide includes a stepped structure, in which the steps may include extraction features hidden to guided light propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Stray light falling onto a light input side of the waveguide is at least partially absorbed.</p> |
申请公布号 |
CA2871779(A1) |
申请公布日期 |
2013.11.21 |
申请号 |
CA20132871779 |
申请日期 |
2013.05.15 |
申请人 |
REALD INC. |
发明人 |
ROBINSON, MICHAEL G.;WOODGATE, GRAHAM J.;HARROLD, JONATHAN;SHARP, GARY D.;SCHUCK, MILLER H. |
分类号 |
G02F1/13357;F21S2/00;F21V8/00 |
主分类号 |
G02F1/13357 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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