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Title:
PARALLAX BARRIER WITH INDEPENDENTLY CONTROLLABLE REGIONS
Document Type and Number:
WIPO Patent Application WO2017010104
Kind Code:
A1
Abstract:
A reconfigurable parallax barrier panel comprising an electro-optic material has first and second regions. The parallax barrier panel is configured in a first mode to address the first and second electrodes on the basis of at least one received drive signal such that: the first electrodes define, in the first region of the panel, a first parallax barrier array selected from a plurality of predetermined parallax barrier arrays; and the second electrodes define, in the second region of the panel, independently of the first parallax barrier array, a second parallax barrier array selected from the plurality of predetermined parallax barrier arrays, the second parallax barrier array being different to the first parallax barrier array. To obtain a good autostereoscopic 3-D viewing zone the pitch of a parallax barrier would ideally vary over the width of the parallax barrier panel as a function of viewing distance. This is impracticable to obtain in a practical parallax barrier panel, but the present invention can provide a change in barrier pitch at the boundary between the first region and the second region, and this effectively mimics a pitch that varies over the width of the parallax barrier panel as a function of viewing distance. A parallax barrier panel of the invention can provide improved 3-D viewing when the parallax barrier panel is incorporated in a display.

Inventors:
SMITH NATHAN JAMES
NONWEILER JOHN PATRICK
HUANG LAURA
HOPKIN HYWEL
MURAO TAKEHIRO
Application Number:
JP2016003334W
Publication Date:
January 19, 2017
Filing Date:
July 14, 2016
Export Citation:
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Assignee:
SHARP KABUSHIKI KAISHA
International Classes:
G02B27/22; G02F1/13; G03B35/24; G09G3/00; H01L51/50; H04N1/04
Domestic Patent References:
WO2014181567A12014-11-13
Foreign References:
US5945965A1999-08-31
JP2012185231A2012-09-27
JP2005164916A2005-06-23
US20070236792A12007-10-11
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