Display Module Composite Optical Film Polarization Recovery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display technologies, particularly liquid crystal display products with a double-cell structure, face challenges in enhancing transmittance, which is crucial for improving display effects.
Innovation Solution
A display module and device configuration that includes a backlight module, a light control cell, a display liquid crystal cell, a first polarizer, a second polarizer, and a composite optical film, where the light control cell is positioned between the backlight module and the display liquid crystal cell, and the composite optical film is configured to transmit P-polarized light and reflect S-polarized light, optimizing light utilization and transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a double-cell structure is used in liquid crystal display products, then the display contrast is improved, but the transmittance decreases
Solution Approach 1:
The patent recovers and reuses S-polarized light that would otherwise be lost. The composite optical film reflects S-polarized light back into the optical path, allowing it to be converted to P-polarized light by the liquid crystal cell and transmitted through the system, thereby recovering energy that would have been wasted
Solution Approach 2:
The composite optical film acts as an intermediary element between the light source and the display cell. It selectively reflects S-polarized light while transmitting P-polarized light, serving as a mediator that directs different polarization states along different paths to optimize both contrast and transmittance
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 configuration significantly improves the effective utilization of light emitted by the backlight module, enhancing both the contrast and transmittance of the display module, thereby improving the overall display effect.
Implementation Method 1
the composite optical film is configured to transmit P-polarized light and reflect S-polarized light
Data Source
AI summary
A display module and a display device are provided. The display module includes a backlight module; a light control cell; a display liquid crystal cell; a first polarizer; a second polarizer; and a composite optical film. Along a thickness direction of the display module, the light control cell is disposed between the backlight module and the display liquid crystal cell and on a light-exiting surface of the backlight module; the first polarizer is disposed on a side of the display liquid crystal cell facing away from the light control cell; the second polarizer is disposed between the display liquid crystal cell and the light control cell; the composite optical film is disposed between the display liquid crystal cell and the backlight module; and the composite optical film is configured to transmit P-polarized light and reflect S-polarized light.