Triangular Lattice Sub-Pixel Stereoscopic Display Orientation Adaptation
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Solution Overview
Problem
Existing stereoscopic display devices require viewers to change their position to maintain optimal viewing distance when the device is oriented vertically or horizontally, due to changes in pixel aspect ratio and light shielding barrier shape.
Innovation Solution
A display device with square sub-pixels arranged in a triangular lattice and a light shielding barrier that adapts its shape based on orientation, using a liquid crystal panel with electrodes configured for vertical and horizontal orientations, ensuring consistent sub-pixel pitch and effective light shielding in both orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional rectangular pixels are used in stereoscopic display devices, then the device can display stereoscopic images with light shielding barriers, but the appropriate viewing distance changes when the device is oriented vertically or horizontally
Solution Approach 1:
The patent employs asymmetric sub-pixel arrangements within pixels, where sub-pixels are positioned at different locations rather than being uniformly distributed. This asymmetric arrangement, combined with corresponding asymmetric light shielding barrier patterns, ensures that the optical path and viewing geometry remain consistent regardless of whether the display is oriented vertically or horizontally, thereby eliminating the need for viewers to adjust their position
Solution Approach 2:
The light shielding barrier is designed with dynamic adaptability through multiple barrier patterns that can be selectively activated based on device orientation. The system dynamically adjusts which barrier pattern is used (first pattern for vertical orientation, second pattern for horizontal orientation) to maintain optimal viewing conditions, making the viewing experience adaptive to orientation changes rather than fixed
2Reliability
If the light shielding barrier shape is fixed, then the device structure is simple, but the stereoscopic image quality degrades when the device orientation changes
Solution Approach 1:
The light shielding barrier is segmented into multiple distinct barrier patterns (first barrier pattern and second barrier pattern), each optimized for specific device orientations. By dividing the barrier into separable patterns that can be independently activated, the system maintains high stereoscopic image quality for each orientation without requiring a completely complex reconfigurable structure
Solution Approach 2:
The light shielding barrier is designed with multi-functionality by incorporating multiple barrier patterns within a single barrier structure. This universal design allows the same physical barrier to serve different functions (vertical orientation optimization and horizontal orientation optimization) depending on which pattern is activated, eliminating the need for separate barriers for each orientation
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 high-quality stereoscopic image viewing without position changes, regardless of device orientation, by maintaining consistent sub-pixel pitch and adjusting light shielding barrier shapes to prevent changes in optimal viewing distance.
Implementation Method 1
a liquid crystal panel in which a liquid crystal layer is sandwiched between a pair of substrates
Implementation Method 2
a shape of a first electrode provided on a liquid crystal layer side of one of the pair of substrates correspond to the shape of the light shielding barrier
Data Source
AI summary
A display device includes: an image display unit having a plurality of pixels each including a plurality of sub-pixels with colors different from one another, the sub-pixels displaying an image for a right eye and an image for a left eye; and a light shielding unit configured to cause parallax to be generated between the two eyes. In the image display unit, each of the sub-pixels is substantially square and arranged in such a manner as to correspond to a corresponding lattice point of a triangular lattice. In the light shielding unit, a shape of a light shielding barrier in a state in which a display device body is oriented in a vertical direction is different from a shape of the light shielding barrier in a state in which the display device body is oriented in a horizontal direction.