Liquid Crystal Module Edge Light Leakage Prevention
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Solution Overview
Problem
The edges of quantum dot enhancement films in liquid crystal modules are prone to corrosion by oxygen and moisture, leading to light leakage due to insufficient width, which is exacerbated by manufacturing and mounting tolerances.
Innovation Solution
A liquid crystal module design that includes a light conversion film with a first side portion of at least 0.8 mm width, supported by a brightness enhancement film and a supporting portion, which is configured to prevent light leakage by ensuring adequate space and structural support for the liquid crystal panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the quantum dot enhancement film is made narrower to accommodate manufacturing tolerances, then the light-shielding area is improved, but the edge corrosion resistance deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-reserving a 0.8mm redundant area at the edges of the quantum dot enhancement film before assembly. This redundant area is prepared in advance to compensate for potential corrosion during operation, preventing edge degradation and light leakage issues that would otherwise occur with narrower film designs.
2Reliability
If the quantum dot enhancement film width is increased to prevent edge corrosion, then the reliability is improved, but the light-shielding area is reduced
Solution Approach 1:
The patent applies local quality by differentiating the width requirements of different regions of the quantum dot enhancement film. The central region is optimized for light-shielding functionality, while the edge regions are extended by 0.8mm to provide corrosion resistance. This localized differentiation allows simultaneous optimization of both light-shielding area and edge reliability.
3Strength
If the plastic frame is used to support the liquid crystal panel, then the structural support is improved, but the quantum dot enhancement film width is reduced due to frame occupation
Solution Approach 1:
The patent introduces a light-shielding layer as an intermediary component between the plastic frame and the quantum dot enhancement film. This light-shielding layer extends beyond the frame edges, allowing the quantum dot enhancement film to maintain adequate width (0.8mm redundant area) while still receiving structural support from the frame. The light-shielding layer mediates the spatial conflict between frame support requirements and film width requirements.
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
Prevents light leakage at the edges of the liquid crystal panel by maintaining sufficient space for the light conversion film and providing structural support, thereby addressing the corrosion issues and manufacturing tolerances.
Implementation Method 1
a light conversion film, which includes a first side portion disposed opposite to the light-shielding area of the liquid crystal panel
Data Source
AI summary
A liquid crystal module and an electronic device are provided. The liquid crystal module includes a liquid crystal panel including a light-admitting area and a light-shielding area located at an edge of the light-admitting area, a light conversion film disposed opposite to the liquid crystal panel, where the light conversion film includes a first side portion disposed opposite to the light-shielding area, and a width of the first side portion is greater than or equal to 0.8 mm, a brightness enhancement film disposed between the liquid crystal panel and the light conversion film, and a supporting portion disposed between the first side portion and the light-shielding area, and configured to support the liquid crystal panel.