3D Display Panel Liquid Crystal Lens Crosstalk Reduction
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Solution Overview
Problem
Existing LCD-based 3D display devices suffer from crosstalk between left and right parallax images and poor controllability, affecting the user's 3D viewing experience.
Innovation Solution
A 3D display panel with a light emitting unit and a display adjustment unit, featuring a liquid crystal layer and control electrodes that form liquid crystal lenses to control the exit direction of light, creating a barrier pattern of alternating bright and dark bands, thereby eliminating crosstalk and enhancing controllability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LCD-based 3D display technology uses binocular parallax principle with traditional display structures, then 3D display function is achieved, but crosstalk between left and right parallax images occurs and controllability deteriorates
Solution Approach 1:
The patent segments the display into multiple pixel regions with independent light emitting devices, allowing separate control of left and right parallax images. Each pixel region can be independently controlled to direct light to the appropriate eye, eliminating crosstalk between parallax images while maintaining reliable 3D display quality.
2Manufacturing precision
If traditional display structures are used without liquid crystal lenses, then device complexity is reduced, but light direction control precision deteriorates
Solution Approach 1:
The patent introduces liquid crystal lenses as intermediary elements between the light emitting devices and the viewer. These lenses precisely control the exit direction of light by adjusting their refractive properties, achieving high manufacturing precision in light direction control while managing device complexity through efficient optical mediation.
Solution Approach 2:
The patent utilizes parameter changes in the liquid crystal lenses, specifically adjusting the refractive index and focal length by controlling voltage applied to the liquid crystal. This enables dynamic control of light exit directions with high precision, allowing the system to adapt to different viewing conditions while managing overall device complexity.
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 effectively reduces crosstalk and improves controllability, resulting in a better 3D viewing experience by ensuring that each eye receives distinct images, enhancing the stereoscopic effect.
Implementation Method 1
the plurality of control electrodes are configured to drive liquid crystal in the liquid crystal layer to form a plurality of liquid crystal lenses under the action of voltages applied to the plurality of control electrodes
Implementation Method 2
adjust sizes and curvatures of the plurality of liquid crystal lenses by controlling the voltages applied to the plurality of control electrodes, so as to control the exit direction of the light emitted from the plurality of light emitting devices
Data Source
AI summary
The present disclosure belongs to the field of display technology, and particularly relates to a 3D display panel, a method for driving the same and a display apparatus. The 3D display panel is divided into a plurality of pixel regions and comprises a light emitting unit, and the light emitting unit includes a plurality of light emitting devices arranged in the plurality of pixel regions. The plurality of light emitting devices are configured to form a barrier pattern of alternating bright and dark bands during display of the 3D display panel.