Autostereoscopic display device

Abstract

A multi-view autostereoscopic display device is disclosed comprising image forming means arranged above and aligned with a view forming module. An image forming device has a planar array of light-emitting display pixels arranged in rows and columns for producing a display, the display pixels being spatially defined by an opaque matrix. The image forming device may be, for example, an LCD display panel. The view forming module may be configured to function as a plurality of view forming elements arranged across the width of the display device, each view forming element focusing light output from adjacent groups of display pixels into a plurality of views for use in different The direction upcast is towards the user. The view forming means may eg be an array of lenticular lenses. The geometry of the view forming elements defines a substantially periodic inter-element variation across the width of the display device for reducing brightness non-uniformity in the view. Element-to-element variation may be provided, for example, by varying at least one of: width, focusing power and the relative position of the geometric axes of the lenticular lenses across the width of the display device.

Description

technical field [0001] The invention relates to an autostereoscopic display device comprising: image forming means, such as a display panel having an array of display pixels; and a view forming module. The view forming module will function or be configured to function as an array of view forming elements arranged above the image forming device and through which the display pixels are viewed. The invention also relates to an autostereoscopic imaging method. Background technique [0002] A known autostereoscopic display device is described in GB2196166A. Such known devices comprise a two-dimensional emissive liquid crystal display panel having an array of rows and columns of display pixels which act as image forming means to produce the display. An array of elongated lenticular lenses extending parallel to each other is located over the display pixel array and acts as a view forming means. The output from the display pixels is projected through these lenticular lenses, whic...

AI Technical Summary

Problems solved by technology

However, a problem associated with this device is that the views projected by the lenticular sheet are separated by dark regions caused by "imaging" the non-emissive black matrix that typically defines the display pixel array

These dark areas are easily observed by the user as brightness non-uniformities in the form of dark vertical bands spaced across the display

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