Liquid Crystal Display Panel Fixation via Clip Mechanism
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Solution Overview
Problem
Conventional small-sized liquid crystal display devices face issues with the liquid crystal panel protruding due to repulsive forces from the FPC, leading to potential damage and light leakage, which increases the defect rate during handling and impact tests.
Innovation Solution
The implementation of a support main with a fixation member, such as clips with a -shaped cross-section, that engages with the guide grooves on the support main to securely fix the liquid crystal panel, preventing it from being raised or bent and thus minimizing light leakage and damage from external impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the liquid crystal panel is fixed only by the bonding force of the light shielding tape, then the device structure is simple, but the liquid crystal panel protrudes due to repulsive force from the FPC causing damage and light leakage
Solution Approach 1:
A fixation member is introduced as an intermediary component between the light shielding tape and the liquid crystal panel. This fixation member has a body portion that contacts the light shielding tape and a protrusion that extends to contact and secure the liquid crystal panel, thereby mediating the connection and preventing panel protrusion without significantly complicating the overall device structure.
2Reliability
If the liquid crystal panel is secured with additional fixation members, then panel stability is improved, but the device complexity increases
Solution Approach 1:
The fixation member integrates multiple functions into a single component: it has a body portion that interfaces with the light shielding tape and a protrusion that secures the liquid crystal panel. This merging of functions into one component achieves panel stabilization without proportionally increasing device complexity, as the fixation member is incorporated into the existing assembly structure.
3Duration of action of moving object
If the FPC resilient force is utilized, then the FPC can return to its original state, but the repulsive force causes the liquid crystal panel to protrude outward
Solution Approach 1:
The fixation member is designed to utilize the repulsive force generated by the FPC's resilient force. The protrusion of the fixation member contacts the liquid crystal panel and converts the harmful protruding motion into a beneficial securing mechanism, where the panel is firmly held against the fixation member, preventing light leakage and damage while allowing the FPC to maintain its resilient properties.
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
The solution effectively reduces the defect rate of liquid crystal display devices by stabilizing the liquid crystal panel and preventing light leakage, even under external impacts, by securely fixing the panel to the support main using the clip and guide groove mechanism.
Implementation Method 1
the fixation member engaged with the support main and pressing and fixing the liquid crystal panel
Data Source
AI summary
A liquid crystal display device includes a liquid crystal panel firmly fixed to a support main. The liquid crystal display device includes a support main receiving a back light assembly, a liquid crystal panel positioned in the support main and located on the back light assembly, and a fixation member engaged with the support main and fixing the liquid crystal panel with respect to the support main.