Curved LCD Protection Panel Prevents Contact During Thermal Expansion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional liquid crystal display devices face issues with the LCD protection panel expanding due to temperature rise or moisture absorption, leading to warping and potential contact with the LCD panel, which can cause damage and require repair, and existing countermeasures either fail to prevent contact or increase the device's size.
Innovation Solution
The implementation of a liquid crystal display device with a liquid crystal display protection panel that is warped with its central portion protruding, supported by a frame, which secures enough clearance between the protection panel and the LCD panel to prevent contact during expansion, using a curved or tapered shape and a dustproof gasket for support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the LCD protection panel is made flat and fixed firmly to prevent movement, then stability is improved, but the panel cannot accommodate thermal expansion and moisture absorption, leading to warping and potential contact with the LCD panel
Solution Approach 1:
The mounting surface is designed with a curved configuration rather than a flat surface. The curved mounting surface allows the protection panel to warp upward in response to thermal expansion and moisture absorption, preventing contact with the LCD panel while maintaining stable mounting. This curvature accommodates dimensional changes without compromising the protective function.
Solution Approach 2:
The patent changes the geometric parameter of the mounting surface from flat to curved. This parameter change enables the system to accommodate thermal expansion and moisture absorption by allowing the protection panel to warp upward, thereby preventing contact with the LCD panel and maintaining reliability under varying environmental conditions.
2Reliability
If space is increased between the protection panel and LCD panel to prevent contact during expansion, then reliability is improved, but the device size increases
Solution Approach 1:
Instead of increasing the overall device volume, the patent uses a curved mounting surface that allows the protection panel to warp upward within the existing space constraints. This curvature provides the necessary clearance between the protection panel and LCD panel during expansion without requiring additional device volume.
Solution Approach 2:
The patent addresses the expansion issue by utilizing the vertical dimension through the curved mounting surface. The protection panel can warp upward in the vertical direction, creating clearance from the LCD panel without increasing the horizontal footprint or overall device volume. This dimensional approach resolves the contradiction between reliability and compact size.
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
This design effectively prevents the LCD protection panel from contacting the LCD panel during expansion, avoiding damage without increasing the device's size, allowing the panel to warp upwardly and maintain clearance, thus avoiding the 'droplet infiltration' phenomenon.
Implementation Method 1
the LCD protection panel 13 tends to expand in the direction of the arrow of FIG. 4A due to temperature rise or moisture absorption
Implementation Method 2
the LCD protection panel 13 tends to expand in the direction of the arrow of FIG. 4A due to temperature rise or moisture absorption
Data Source
AI summary
Provided is a liquid crystal display device including a liquid crystal display panel, a liquid crystal display protection panel set above the liquid crystal display panel so as to protect a display surface of the liquid crystal display panel, the liquid crystal display protection panel being warped with its central portion being protruded, and a frame supporting the liquid crystal display panel and the liquid crystal display protection panel.