LCD Support Main Curved Protrusion Prevents Panel Friction
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Solution Overview
Problem
The reduction in thickness of liquid crystal display devices leads to increased friction between the liquid crystal panel and optical sheets due to vibration and impact, causing damage and deterioration in display quality.
Innovation Solution
A support main with curved protrusions or adhesive pads is used to prevent the droop of the liquid crystal panel, minimizing contact and friction with optical sheets, thereby preventing scratches and maintaining display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the thickness of the liquid crystal display device is reduced, then the device becomes more compact and modern, but the distance between the liquid crystal panel and optical sheets decreases causing contact and friction damage
Solution Approach 1:
A support main is introduced as an intermediary component between the liquid crystal panel and optical sheets. This support main includes a protrusion that extends toward the liquid crystal panel, creating a physical barrier that prevents direct contact between the panel and optical sheets, thereby eliminating friction damage while allowing the device to maintain reduced thickness
Solution Approach 2:
The solution addresses the thickness reduction problem by utilizing a different spatial dimension - the support main protrusion extends in the thickness direction (z-axis) to create separation, rather than increasing the overall device thickness. This allows the device to remain compact while preventing panel droop and contact damage
2Adaptability or versatility
If vibration and impact occur during transportation, then the device experiences mechanical stress, but friction between contacting panel and optical sheets causes scratches and deteriorates display quality
Solution Approach 1:
The support main protrusion is pre-positioned to create separation between the liquid crystal panel and optical sheets before vibration or impact occurs. This preliminary structural arrangement prevents the panel from drooping and contacting the optical sheets during transportation, thereby preventing friction and scratches before they can occur
Solution Approach 2:
The support main acts as a mediator that absorbs and distributes mechanical stress from vibration and impact, preventing direct transmission of harmful forces to the optical sheets. The protrusion structure creates a buffer zone that eliminates friction contact while maintaining device integrity under mechanical stress
Data Source
AI summary
A liquid crystal display device that is capable of preventing the damage to optical sheets and a liquid crystal panel due to vibration and impact is disclosed. The liquid crystal display device includes a liquid crystal panel for controlling transmissivity of liquid crystal to display images, a backlight unit configured to include a plurality of optical sheets for irradiating light to the liquid crystal panel, and a support main for supporting the liquid crystal panel and the backlight unit, the support main having a protrusion curved to prevent the droop of the liquid crystal panel at the middle thereof. With the above construction, it is possible to minimize the friction between the liquid crystal panel and the optical sheets, prevent the formation of wrinkles or scratches at the optical sheets, and prevent the optical sheets from being rubbed.