Barrier Cell Spacer Alignment for 3D Display Light Leakage
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Solution Overview
Problem
Conventional image display devices with barrier cells experience light leakage due to randomly arranged spacers, leading to non-uniform cell gaps and compromised 3D image quality, as spacers are not aligned with black and white areas, causing unwanted light transmission in 3D mode.
Innovation Solution
The spacers in the barrier cell are strategically arranged to correspond with the white areas, ensuring that only the transmission areas allow light to pass through, thereby reducing light leakage and improving 3D image quality by minimizing 3D crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If spacers are arranged to maintain cell gaps in barrier cell, then cell gap uniformity is improved, but light leakage occurs in black areas
Solution Approach 1:
The patent applies local quality by differentiating the arrangement of spacers based on location: spacers are placed only in white areas (transmission regions) and deliberately excluded from black areas (blocking regions). This localized differentiation allows the spacer to maintain cell gap uniformity in white areas while preventing light leakage in black areas, where even small gaps would cause harmful light transmission.
2Stability of the object's composition
If spacers are placed in black areas to maintain cell gaps, then cell gap stability is improved, but 3D image quality deteriorates due to light leakage
Solution Approach 1:
The patent implements local quality by making the spacer arrangement location-dependent: spacers are present in white areas to maintain cell gap stability, but absent in black areas to prevent light leakage. This selective placement ensures that cell gap stability is maintained where needed (white areas) while preserving 3D image quality by eliminating light leakage paths in black areas.
3Ease of manufacture
If spacers are randomly arranged in barrier cell, then manufacturing process is simplified, but light leakage and non-uniform cell gaps occur
Solution Approach 1:
The patent applies preliminary action by pre-defining the spacer arrangement pattern before manufacturing completion. The spacer configuration is determined in advance based on the black and white area distribution, ensuring that spacers are positioned only in white areas. This pre-planned arrangement eliminates the need for complex real-time adjustments during manufacturing while guaranteeing uniform cell gaps and preventing light leakage.
Data Source
AI summary
There are provided an image display device including a barrier cell, and a method of fabricating the same. The image display device includes: a display panel configured to display an image; and a barrier cell configured to block or transmit an image emitted from the display panel, wherein a pattern spacer for maintaining a cell gap of the barrier cell is disposed in correspondence to a white area of the barrier cell, and the white area transmits the image emitted from the display panel.