Autostereoscopic Pixel Unit with Integrated Optical Guide
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Solution Overview
Problem
Existing autostereoscopic display technologies face challenges with high manufacturing costs, complex pixel alignment, and limited display area expansion, particularly for large-size and curved screens, due to the use of lenticular lenses and parallax barriers, which restrict flexibility and lead to issues like black frame lines and reduced brightness.
Innovation Solution
An autostereoscopic pixel emitting unit comprising sub-pixel units with optical packages that include optical guide areas for light refraction and mixing, allowing for seamless splicing of display modules without external lenses, enabling flexible, large-size, and free-form surface displays with 2D and 3D capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lenticular lens and parallax barrier are used for autostereoscopic display, then stereoscopic image quality is improved, but manufacturing cost and assembly complexity increase significantly
Solution Approach 1:
The patent merges the lenticular lens and parallax barrier into a single integrated optical unit that is directly coupled with the LCD panel. This integration eliminates the need for separate assembly of multiple optical components, reducing assembly complexity while maintaining stereoscopic image quality through the unified optical design.
Solution Approach 2:
The integrated optical unit serves multiple functions simultaneously: it acts as both the lenticular lens for light refraction and the parallax barrier for view separation. This multi-functionality reduces the number of components needed and simplifies the overall device structure while achieving the desired autostereoscopic effect.
2Area of stationary object
If LCD panel with lenticular lens is used for large-size display, then display area is increased, but reject ratio and manufacturing cost increase
Solution Approach 1:
The patent segments the large-size display into multiple modular units, each with its own integrated optical system. These modules can be manufactured independently at lower costs and then assembled to form large-scale displays, reducing the reject ratio and overall manufacturing cost compared to producing single large panels.
Solution Approach 2:
The patent transitions from planar splicing of video walls to three-dimensional integration of the optical unit with the LCD panel. This vertical integration allows for seamless large-size displays without the need for external framing or complex splicing mechanisms, reducing manufacturing complexity and cost.
3Area of stationary object
If video wall splicing is used for large-size display, then display area is expanded, but black frame lines and seam lines appear reducing image quality
Solution Approach 1:
The patent merges the optical components directly with the LCD panel in an integrated unit, eliminating the gaps and seams between separate video wall panels. This integration ensures seamless edges and continuous optical paths, preventing black frame lines and seam lines from appearing in the final display.
4Reliability
If external lens is used for 3D display, then stereoscopic effect is achieved, but brightness is reduced and distinctiveness is lost
Solution Approach 1:
The patent incorporates the optical components directly into the display structure before the light emission process, allowing for optimized light path design. This preliminary integration enables the optical system to efficiently guide and focus light without additional losses, maintaining high brightness while achieving the stereoscopic effect.
5Device complexity
If fixed mode of lens and display is used, then assembly is simplified, but maintenance difficulty and environmental debris issues arise
Solution Approach 1:
The patent segments the display system into modular integrated units that can be independently removed and replaced. This modular design simplifies maintenance by allowing individual units to be accessed and serviced without disassembling the entire display, reducing maintenance difficulty while maintaining assembly simplicity through standardized interfaces.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for the creation of large-size, seamless, and flexible autostereoscopic displays without the need for external lenses, reducing costs and improving image quality by enabling free expansion and maintaining high brightness and distinctiveness, suitable for various installation sites and display shapes.
Implementation Method 1
an optical guide area for light refraction and mixing
Implementation Method 2
the mixing light area mixes the light emitted from the sub-pixel unit in the optical package through reflection, refraction or total reflection
Implementation Method 3
the optical guide area deflect and gather the light emitted from the sub-pixel unit to different directions
Data Source
AI summary
An autostereoscopic pixel emitting unit and multi-view autostereoscopic display device comprised of the pixel emitting units; an optical package covers the sub-pixel unit and each sub-pixel unit contains at least a red, green and blue light-emitting unit; each optical package contains at least an optical guide area and a mixing light area; the image display surface formed by matrix configuration can lead the multi-view stereoscopic images to left and right eyes of different viewers, and form stereoscopic vision through perception of human brains. The autostereoscopic display unit is minimized so that the display device has multiple advantages such as free from panel optical lens size restriction, large-area display, plane or curved surface installation, without frame joint, simultaneous display or functional conversion of 2D/3D images, easy maintenance, safety, and environmental protection.