Variable Light Valve for Naked Eye 3D Display Crosstalk Reduction
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Solution Overview
Problem
Current naked eye 3D display devices experience crosstalk due to light emitted by pixels entering the wrong eye through non-corresponding micro-lenses, limiting the visible space and affecting the 3D display effect.
Innovation Solution
A display device with a variable light-valve containing first and second light dimmers, arranged between the display panel and lens array, which switches between light-transmitting and light-shielding states to direct light rays from pixel elements to the correct eye, preventing crosstalk by positioning light dimmers between left-eye and right-eye viewing areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If light emitted by pixels enters the wrong eye through non-corresponding micro-lenses, then the visible space is limited, but crosstalk occurs affecting the 3D display effect
Solution Approach 1:
The light valve is segmented into multiple independently controllable light dimmers, each corresponding to specific pixel groups. This segmentation allows selective control of light transmission to left-eye and right-eye viewing areas, preventing crosstalk by blocking light from reaching the wrong eye while maintaining visible space for the correct eye.
Solution Approach 2:
The light valve uses dynamically controllable light dimmers that can switch between light-transmitting and light-shielding states in real-time. This dynamic control allows the system to adaptively direct light to the correct eye for each frame, eliminating crosstalk while preserving the full visible space for 3D display.
2Object-affected harmful factors
If a variable light-valve with multiple light dimmers is introduced, then crosstalk is prevented, but the device complexity increases
Solution Approach 1:
The light valve is merged with the existing display panel structure, sharing the same substrate and integrating closely with the lens array. This merging approach reduces overall device complexity by eliminating separate components and simplifying the optical path, while still achieving effective crosstalk prevention through the light dimmer mechanism.
Solution Approach 2:
The light valve structure serves multiple functions: it controls light transmission to prevent crosstalk, maintains visible space for 3D display, and integrates with the display panel substrate. This multi-functionality reduces the need for additional separate components, thereby reducing overall device complexity despite the sophisticated light control capability.
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 prevents crosstalk, enhances the visible space, and improves the 3D display effect by ensuring light rays from the display panel are directed to the appropriate eye, using either a liquid crystal cell or mechanical grating structure for efficient and precise image reproduction.
Implementation Method 1
the variable light valve has a liquid crystal cell structure, and the first light dimmers and the second light dimmers are liquid crystal light dimmers
Implementation Method 2
the variable light-valve includes a mechanical grating structure, and the first light dimmers and the second light dimmers are mechanical grating tuning structures
Data Source
AI summary
Disclosed are a display device, and a displaying method thereof. The display device includes: a display panel including a plurality of pixel elements; a lens array arranged on the light exit side of the display panel; and a variable light-valve arranged between the display panel and the lens array, including a plurality of first light dimmers and second light dimmers, wherein the respective first light dimmers are located between the pixel elements and a left-eye watching area, and the respective second light dimmers are located between the pixel elements and a right-eye watching area; and the first light dimmers are operable in a light-transmitting or light-shielding state, and the second light dimmers are operable in a light-transmitting or light-shielding state.