Display Module Light Grating Assembly Single Polarizer
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Solution Overview
Problem
Conventional 3D naked eye display technologies require additional polarizers for switchable liquid crystal light gratings, increasing the thickness and weight of displays, which is undesirable for thinner and lighter designs.
Innovation Solution
A display module with a light grating assembly comprising alternately disposed regions with different liquid crystal and dye molecules, controlled by electrodes and alignment layers, that switches between 3D and 2D modes using a single polarizer, eliminating the need for additional polarizers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a switchable liquid crystal light grating is used to achieve 3D naked eye display, then 3D and 2D mode switching is enabled, but additional polarizers are required which increases the thickness of the display
Solution Approach 1:
The patent combines the light grating function and polarizing function into a single integrated structure. The liquid crystal layer with dye molecules serves both to create the light grating pattern and to provide the necessary polarizing effect, eliminating the need for separate additional polarizer layers that would increase thickness.
Solution Approach 2:
The liquid crystal layer is designed to perform multiple functions simultaneously: it creates the light grating pattern for 3D display, provides polarizing capability for mode switching, and enables both 3D and 2D display modes. This multi-functionality reduces the overall number of components and thickness of the display structure.
2Adaptability or versatility
If additional polarizers are added to achieve switchable liquid crystal light grating function, then 3D naked eye display is enabled, but the weight of the display increases
Solution Approach 1:
The patent merges the polarizing function with the light grating function in a single liquid crystal layer with dye molecules, eliminating the need for additional separate polarizer components that would add weight to the display structure.
Solution Approach 2:
The integrated liquid crystal layer performs multiple functions including polarizing and light grating creation, reducing the total material quantity and weight of the display while maintaining full 3D naked eye display capability.
3Reliability
If multiple polarizers are used in the light grating assembly, then proper light control for 3D display is achieved, but the display structure becomes more complex
Solution Approach 1:
The patent combines multiple functions (light grating creation and polarizing) into a single integrated liquid crystal layer with dye molecules, reducing the number of separate components and simplifying the overall display structure while maintaining reliable light transmission control for 3D display.
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
Enables thinner and more compact displays by achieving the liquid crystal light grating function without additional polarizers, allowing for efficient switching between 3D and 2D modes through controlled light transmission and absorption in the display module.
Implementation Method 1
a liquid crystal layer disposed between the first substrate and the second substrate, and comprising first liquid crystal molecules and first dye molecules distributed in the first regions and second liquid crystal molecules and second dye molecules distributed in the second regions
Implementation Method 2
under the first mode, a light transmission axis direction of the first dye molecules, a light transmission axis direction of the second dye molecules are parallel to a light transmission axis direction of the first polarizer to make light pass through the first regions and the second regions; under the second mode, a light transmission axis direction of the first dye molecules is parallel to the light transmission axis direction of the first polarizer, a light absorbing axis direction of the second dye molecules is parallel to the light transmission axis direction of the first polarizer
Implementation Method 3
a first polarizer disposed between the display panel and the light grating assembly
Data Source
AI summary
The present application discloses a display module and a display device. The display module includes a light grating assembly. The light grating assembly includes alternately arranged first regions and second regions, and liquid crystal molecules and dye molecules distributed in the first regions and the second regions. Arrangement of the liquid crystal molecules and the dye molecules are controlled to make the first regions light-transmissive and the second regions light-transmissive under a first mode and not light-transmissive under a second mode to form alternately light and dark stripes under the second mode.