Naked-Eye 3D Display Backlight Layout for Low Crosstalk Switching
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Solution Overview
Problem
Current displays are limited to 2D mode and existing 3D technologies suffer from high crosstalk and inefficient switching between 2D and 3D display modes.
Innovation Solution
A naked-eye 3D display device with a backlight panel and display panel that are parallelly spaced, utilizing controllable light-emitting units and interleaved pixel arrangements to achieve stereoscopic vision, reducing crosstalk and enabling seamless switching between 2D and 3D modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional active 3D solutions adjust LCD pixel arrangement to adapt to raster, then 3D display capability is achieved, but 3D crosstalk increases and manufacturing complexity increases
Solution Approach 1:
Instead of adjusting LCD pixel arrangement to adapt to the light source raster (traditional approach), this patent inverts the approach by keeping LCD pixels fixed and adjusting the OLED backlight panel's bright and dark stripe arrangement to match the LCD pixel arrangement. This inversion resolves the technical contradiction by eliminating the need for complex pixel arrangement adjustments while maintaining 3D display capability and reducing crosstalk
Solution Approach 2:
The patent introduces the OLED backlight panel as an intermediary element between the light source and the LCD display panel. By controlling the backlight panel's emission patterns (bright and dark stripes), it mediates the light delivery to reduce crosstalk without requiring changes to the LCD pixel structure, thus resolving the contradiction between 3D performance and device complexity
2Reliability
If LCD pixels are simultaneously horizontally divided for spectral separation, then 3D display is enabled, but manufacturing precision requirements increase
Solution Approach 1:
The patent segments the backlight function from the display function by using a separate OLED backlight panel with controllable bright and dark stripes. This segmentation allows the LCD pixels to remain fixed in their original arrangement while the backlight provides the necessary spatial modulation for 3D display, thereby reducing manufacturing precision requirements for pixel arrangement
Solution Approach 2:
Rather than dividing LCD pixels horizontally for spectral separation (which increases manufacturing precision requirements), the patent inverts the approach by using the backlight panel to create the separation patterns. This maintains LCD pixel integrity and reduces manufacturing complexity
3Ease of manufacture
If fixed LCD pixel arrangement is used, then manufacturing is simplified, but adaptability to different 3D viewing conditions decreases
Solution Approach 1:
The patent introduces dynamics into the system by making the OLED backlight panel's emission pattern adjustable. The backlight panel can dynamically change its bright and dark stripe arrangement to adapt to different 3D viewing conditions, different stereoscopic image formats, and multiple viewer positions, while the LCD pixels remain fixed. This resolves the contradiction by providing adaptability through the dynamic backlight rather than through fixed pixel arrangement
Solution Approach 2:
The OLED backlight panel serves multiple functions: it provides uniform backlight for 2D display mode and creates alternating bright/dark stripes for 3D display mode. This multi-functionality allows the fixed LCD pixel arrangement to support both 2D and 3D modes as well as different 3D formats, thereby achieving universality without compromising manufacturing simplicity
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
The solution reduces 3D crosstalk, supports multiple viewer perspectives, and addresses the issue of switching between 2D and 3D display modes by adjusting backlight panel brightness and pixel interleaving, ensuring precise 3D image restoration.
Implementation Method 1
the backlight panel comprises an array of controllable light-emitting units, each of the light-emitting units emitting white light or not emitting light
Implementation Method 2
the display panel comprises an array of display units
Data Source
AI summary
A naked-eye 3D display method and a related device, used to reduce 3D crosstalk and suitable for multi-person watching, and also solving the problem of 2D/3D display switching. The method comprises: a naked-eye 3D display device (300) being 2D/3D switchable and comprising an OLED backlight panel (301) and a display panel (302) which are arranged in parallel at an interval; the backlight panel (301) containing a controllable light-emitting unit array, a light-emitting unit emitting white light or not emitting light; the display panel (302) comprising a liquid crystal display unit array. The naked-eye 3D display device (300) is used to display a three-dimensional image, the three-dimensional image comprising two or more views; when the naked-eye 3D display device (300) is switched to a 2D display mode, light-emitting units provided on the backlight panel (301) emit light, so that a light incident surface of the display panel (302) is uniformly illuminated; and when the naked-eye 3D display device (300) is switched to a 3D display mode, pixels of the two or more views of the three-dimensional image are arranged in a staggered manner on the display panel (302), and the light-emitting units of the backlight panel (301) are alternately arranged in a bright and dark manner.