Slim Display Panel with Ground Line for Static Protection
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Solution Overview
Problem
Conventional liquid crystal display devices have limitations in reducing thickness and developing innovative designs due to the requirement of multiple case and set cover parts, which also restricts their aesthetic appeal and increases the risk of electrostatic defects.
Innovation Solution
A display panel and device design that minimizes thickness by removing unnecessary case and set cover parts, featuring a lower substrate with a display area and non-display area, data pad portions, and a ground line on the non-display area to improve static electricity tolerance, while using a guide frame and rear set cover to securely position the display panel and backlight unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple case and set cover parts are used to ensure structural rigidity and protection, then reliability is improved, but device thickness increases and aesthetic appeal deteriorates
Solution Approach 1:
The patent removes the upper case from the traditional display device structure, extracting only the essential protective and structural components (lower case and rear set cover) while eliminating redundant parts. This reduction in component count directly reduces device thickness while maintaining necessary structural support through optimized positioning of remaining components.
Solution Approach 2:
The lower case and rear set cover are designed to perform multiple functions simultaneously: providing structural rigidity, protecting internal components, and serving as the aesthetic outer shell. This multi-functionality compensates for the removed upper case, maintaining reliability without increasing thickness.
2Reliability
If multiple case and set cover parts are used to ensure structural rigidity and protection, then reliability is improved, but device complexity increases
Solution Approach 1:
The upper case is completely removed from the device structure, reducing the number of parts from four (upper case, lower case, front set cover, rear set cover) to two essential components. This extraction simplifies the assembly process and reduces device complexity while maintaining structural integrity through optimized design of remaining parts.
Solution Approach 2:
The lower case and rear set cover are designed to work together as an integrated structural system, with the rear set cover positioned to provide additional support from the back side. This merging of functions into fewer components reduces assembly complexity while maintaining the necessary structural rigidity.
3Length of moving object
If case and set cover parts are removed to reduce thickness, then device thickness decreases and aesthetic appeal improves, but electrostatic defect risk increases
Solution Approach 1:
A ground line is introduced as an intermediary protective element on the lower substrate, serving as an electrostatic protection mechanism. This ground line acts as a mediator that dissipates static electricity buildup, protecting the display panel from electrostatic damage even in the absence of the upper case.
Solution Approach 2:
The ground line is pre-configured on the lower substrate before assembly, establishing electrostatic protection in advance. This preliminary action ensures that static electricity dissipation pathways are already in place, preventing electrostatic defects before they can occur during device operation or handling.
4Reliability
If conventional upper and lower cases are used to protect display panel and backlight unit, then reliability is improved, but device thickness increases
Solution Approach 1:
The upper case is removed from the protective structure, relying instead on the rear set cover positioned behind the display panel to provide necessary protection. This extraction eliminates the thickness contribution of the upper case while the rear set cover maintains protective functions from the opposite side.
Solution Approach 2:
Protection is shifted from a primarily front-facing structure (upper case) to a back-facing structure (rear set cover). This dimensional shift in protective positioning allows the display device to achieve slimness from the front while maintaining component protection through rear-side support and enclosure.
Data Source
AI summary
A display panel and a display device having the display panel are discussed. According to an embodiment, the display panel includes a lower substrate provided with a display area and a non-display area; a plurality of data pad portions formed at a side region of the non-display area; an upper substrate bonded to the lower substrate, except for the side region of the non-display area; and at least one ground line supplied with ground power, and formed on the lower substrate of the non-display area to surround in part an outline portion of the display area.