2D-3D switchable electronic device with an optimized 2D mode
A method and electronic device for optimizing 2D image display in autostereoscopic systems without removing the parallax unit. The system includes an image panel, a parallax unit positioned in front of it, and control circuitry. In 3D mode, the system displays directional images for left and right eye separation. In 2D mode, it improves image quality by classifying pixels beneath the parallax unit into multiple groups and applying diagonal jitter in a direction perpendicular to the lens extension.
1 . An electronic device, which offers improved image uniformity and stable two-dimensional viewing in lenticular-based displays while preserving support for stereoscopic content, comprising:
a display comprising an array of pixels for a plurality of lenticular lens units to cover,
wherein the display defines a plurality of controllable viewing zones based on their respective positions beneath the lenticular lens units; and
control circuitry configured with a two-dimensional mode for rendering content on the display,
wherein in the two-dimensional mode, the rendered content includes an image segmentation process, configured to partition a two-dimensional image into a plurality of image segments wherein said image segments are associated with respective viewing zones at a plurality of time periods, and the control circuitry is further configured to alternately reassign the image segments to different viewing zones at different time periods.
2 . The electronic device according to claim 1 , wherein said array of pixels is arranged in rows and columns, oriented along a row direction and a column direction, and
said image segments have boundaries that are slanted at an angle relative to the row direction and the column direction.
3 . An electronic device, which offers improved image uniformity and stable monoscopic viewing in lenticular-based displays while preserving support for stereoscopic content, comprising:
a display that includes an array of pixels for a plurality of lenticular lens units to cover,
wherein the display has a plurality of controllable viewing zones; and
a control circuitry that has a monoscopic mode and a stereoscopic mode, configured to render content for the display:
when in the stereoscopic mode, the rendered content includes three-dimensional images that are each associated with a respective viewing zone and the control circuitry is configured to simultaneously present said three-dimensional images on the respective viewing zones; and
when in the monoscopic mode, the rendered content includes image segments and the control circuitry is configured to associate the image segments with respective viewing zones and alternately switch the image segments between the viewing zones at an indicated refresh rate.
4 . The electronic device according to claim 3 , wherein the shape of the viewing zones in the stereoscopic mode is different from that in the monoscopic mode.
5 . The electronic device according to claim 3 , wherein said rendered content includes an image segmentation process, configured to partition a two-dimensional image into a plurality of image segments.
6 . A method for operating an electronic display device comprising a display having an array of pixels overlaid by a plurality of lenticular lens units, the method comprising:
defining a plurality of controllable viewing zones based on the relative positions of the pixels beneath the lenticular lens units;
rendering content for the display using control circuitry that supports a monoscopic mode and a stereoscopic mode;
in the stereoscopic mode, rendering three-dimensional images, each associated with a respective viewing zone, and simultaneously presenting said three-dimensional images on the respective viewing zones; and
in the monoscopic mode, partitioning a two-dimensional image into a plurality of image segments;
rendering the plurality of image segments and associating the plurality of image segments with respective viewing zones; and
alternately reassigning the plurality of image segments to different viewing zones at an indicated refresh rate.