3D Display Panel Quarter Wave Retarder Viewing Angle Optimization
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Solution Overview
Problem
Conventional 3D displays suffer from a narrow viewing angle due to non-circularly polarized light emission, leading to image crosstalk and degraded 3D display quality.
Innovation Solution
A 3D display panel comprising a liquid crystal layer between two substrates, a first polarizer, a second polarizer, and a quarter wave retarder film, where the optical retardation values of the quarter wave retarder film and user's polarizer glasses are optimized within specific ratios to enhance viewing angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional pattern retarder display is used, then 3D image display function is achieved, but viewing angle is narrow and image crosstalk occurs
Solution Approach 1:
The patent applies parameter changes by optimizing the optical retardation values of the quarter wave retarder film and polarizer glasses within specific ratios (R1/0.91≦R2≦R1/0.77). This parameter optimization ensures that the system maintains circularly polarized light output across a broader viewing angle range, resolving the contradiction between viewing angle and image crosstalk by adjusting the optical parameters rather than changing the fundamental display structure
Solution Approach 2:
The patent employs composite optical materials including a quarter wave retarder film with specific optical properties and polarizer glasses with matched retardation values. The combination of these materials with different optical characteristics creates a system that maintains proper polarization states over wider viewing angles, preventing image crosstalk while expanding the usable viewing cone
2Adaptability or versatility
If quarter wave retarder film and polarizer glasses are optimized within specific retardation ratios, then viewing angle is broadened, but manufacturing precision requirements increase
Solution Approach 1:
The patent defines a range for the retardation ratio (R1/0.91≦R2≦R1/0.77) rather than requiring exact matching. This parameter range approach allows manufacturing tolerance while still achieving the desired viewing angle improvement and crosstalk reduction, balancing performance gains with manufacturability
Solution Approach 2:
The quarter wave retarder film serves as an intermediary optical element that mediates between the liquid crystal display and the polarizer glasses. By positioning and optimizing this intermediate layer, the system achieves broader viewing angles while the defined retardation ratio provides a practical manufacturing target that balances precision requirements with performance benefits
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 optimized optical retardation values significantly broaden the viewing angle range and improve 3D display quality by reducing image crosstalk.
Implementation Method 1
a quarter wave (λ/4) retarder film disposed at an outer side of the first substrate, wherein the quarter wave retarder film has a first optical retardation value (R1)
Implementation Method 2
a liquid crystal layer formed between the first substrate and the second substrate
Data Source
AI summary
The present invention provides a 3D display panel and a 3D display system. The system comprises the 3D display panel and polarizer glasses. A first optical retardation value of a quarter wave (λ/4) retarder film of the 3D display panel can be designed according to a second optical retardation value of the polarizer glasses. The present invention can improve a narrow viewing angle problem existing in the conventional 3D display.