Holographic Display Phase Modulation Panel Structure
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Solution Overview
Problem
Existing holographic 3D display technologies face challenges in achieving high-resolution, high-definition displays with large screen sizes while maintaining a simple structure and low cost.
Innovation Solution
A display device comprising a display panel with a first linear polarizer and a phase modulation panel that performs phase modulation on linearly polarized image light, allowing for synchronous adjustment of amplitude and phase to achieve high-resolution, high-definition 3D displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional holographic display methods are used, then three-dimensional visual properties can be achieved, but the structure becomes complex and cost increases
Solution Approach 1:
The patent combines the display panel and phase modulation panel into a stacked configuration where the phase modulation panel is positioned directly on the light-emitting side of the display panel. This merging approach integrates amplitude modulation (from the display panel) and phase modulation (from the phase modulation panel) into a single compact system, achieving holographic three-dimensional display while simplifying the overall structure and reducing component count
Solution Approach 2:
The phase modulation panel serves multiple functions: it modulates the phase of linearly polarized light from the display panel, enables holographic image reconstruction, and contributes to achieving both high resolution and large screen size. This multi-functionality reduces the need for separate dedicated components, thereby simplifying the system structure
2Measurement precision
If high-resolution holographic display is achieved, then definition improves, but screen size is limited
Solution Approach 1:
The system divides the display functionality into two independent panels: the display panel handles amplitude modulation with high-resolution pixel units, while the phase modulation panel handles phase modulation with corresponding phase modulation units. This segmentation allows each panel to be optimized for its specific function, enabling high resolution in the display panel while the phase modulation panel can be scaled to larger sizes without compromising overall display quality
Solution Approach 2:
The patent transitions from conventional two-dimensional display to three-dimensional holographic display by adding phase modulation in the optical path. The phase modulation panel introduces phase information that enables light wave interference and diffraction, creating true three-dimensional visual effects with depth perception while maintaining high resolution through the pixel-to-phase-modulation-unit correspondence
3Measurement precision
If advanced holographic technology is implemented, then display quality improves, but manufacturing cost increases
Solution Approach 1:
The phase modulation panel uses phase modulation units that correspond to pixel units in the display panel, effectively creating a mapped relationship between the two panels. This copying approach allows the system to achieve complex holographic functionality without requiring entirely new manufacturing processes, as the phase modulation panel can be fabricated using similar techniques to conventional display panels
Solution Approach 2:
The system achieves high-quality holographic display by modulating the phase parameter of light rather than requiring complex amplitude modulation throughout the entire optical path. By changing the control parameter from full complex modulation to separate amplitude (display panel) and phase (phase modulation panel) control, the manufacturing complexity and cost are significantly reduced while maintaining display quality
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 enables the realization of high-resolution, high-definition 3D displays with increased screen size, while maintaining a simple structure and low cost, effectively addressing the limitations of existing technologies.
Implementation Method 1
a display panel, comprising a first linear polarizer located on a light-emitting side, so that the display panel emits linearly polarized image light
Implementation Method 2
a phase modulation panel, disposed on the light-emitting side of the display panel and configured to perform phase modulation on the linearly polarized image light
Implementation Method 3
each phase modulation unit of the plurality of phase modulation units comprises a modulation electrode, which is configured to drive liquid crystal deflection in the first liquid crystal layer to achieve modulation of the phase of the linearly polarized image light passing through the first liquid crystal layer
Implementation Method 4
a modulation electrode, which is configured to drive liquid crystal deflection in the first liquid crystal layer to achieve modulation of the phase of the linearly polarized image light
Data Source
AI summary
The disclosure provides a display device and a holographic display apparatus. The display device includes a display panel including a first linear polarizer located on a light-emitting side, so that the display panel emits linearly polarized image light; and a phase modulation panel disposed on the light-emitting side of the display panel and configured to perform phase modulation on the linearly polarized image light. The holographic display apparatus includes the display device.