Light Blocking Chassis for Reduced Bezel Width
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Solution Overview
Problem
Current display devices face challenges in reducing bezel width, which affects their thickness and consumer appeal, as existing designs often require thicker structures to accommodate light blocking components and maintain image quality.
Innovation Solution
The design incorporates a light blocking chassis with an insertion portion that overlaps the display substrate and a side portion extending from the insertion, allowing for a reduced bezel width by integrating the light blocking function within the display device's structure, specifically using a recessed structure and a bent printed circuit board to minimize visible bezel width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a light blocking chassis is added to block light in the bezel area, then light blocking functionality is improved, but device complexity and thickness increase
Solution Approach 1:
The patent merges the light blocking function with the existing chassis structure by forming the light blocking chassis as an integrated component that combines structural support and optical shielding functions, eliminating the need for separate light blocking elements and reducing overall device complexity
Solution Approach 2:
The light blocking chassis is nested within the display device structure, with the insertion portion positioned between the first and second substrates, utilizing the existing spatial arrangement to accommodate light blocking functionality without adding external thickness
2Shape
If the bezel width is reduced to improve aesthetics, then consumer appeal is improved, but light blocking becomes more difficult
Solution Approach 1:
The patent transitions from two-dimensional light blocking (flat chassis) to three-dimensional light blocking by forming a light blocking chassis with an insertion portion that extends between substrates, creating multiple light blocking surfaces at different depths to effectively block light in reduced bezel areas
Solution Approach 2:
The light blocking chassis is strategically positioned in specific regions where light leakage is most likely to occur, with the insertion portion extending into the display area to provide localized light blocking precisely where needed, rather than uniformly across the entire bezel
3Volume of moving object
If the printed circuit board is bent to follow the side surface, then space utilization is improved, but manufacturing complexity increases
Solution Approach 1:
The printed circuit board is designed with flexibility to bend and conform to the side surface of the display device, transitioning from a rigid flat structure to a dynamic form that adapts to the device's three-dimensional geometry, optimizing space utilization while maintaining electrical connectivity
Data Source
AI summary
A display device includes a first substrate including a first side surface, a display area, and a pad area located outside of the display area and adjacent to the first side surface, a second substrate facing the first substrate and including a second side surface extending further outward than the first side surface of the first substrate, a printed circuit board electrically connected to the pad area of the first substrate and bent along the first side surface of the first substrate, and a light blocking chassis overlapping the printed circuit board and the first side surface of the first substrate.