Liquid Crystal Display Panel Adhesive Groove Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Liquid crystal display panels face issues with reduced adhesive force due to narrow sealant areas and increased conductive layers, leading to potential deformation and defects, especially when external forces are applied.
Innovation Solution
The implementation of an adhesive groove part with S-shaped curved lines in a twisted configuration that increases the contact area of the sealant with both protective layers and the interlayer insulating layer, enhancing the adhesive force without expanding the bezel area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the width of the sealant area is reduced to increase the display surface area, then the display surface area is increased, but the adhesive force of the sealant is reduced
Solution Approach 1:
The invention transitions from a planar sealant structure to a three-dimensional structure by forming groove parts that extend vertically between the first and second substrates. This dimensional change allows the sealant to occupy multiple levels (surface level and groove interior), effectively increasing the adhesive area without expanding the horizontal bezel width, thus resolving the contradiction between display surface area and adhesive force.
Solution Approach 2:
The sealant structure is segmented into multiple distinct regions: a first sealant portion at the surface level and a second sealant portion within the groove parts. This segmentation allows each portion to contribute independently to the total adhesive force, enabling the system to maintain high adhesive strength even when the overall sealant width is reduced to maximize display surface area.
2Adaptability or versatility
If the number of conductive layers is increased to accommodate more circuit lines, then the circuit functionality is enhanced, but the thickness of the display panel is increased and attachment force is reduced
Solution Approach 1:
The groove parts are formed within the existing protective layers structure, nesting the adhesive feature inside the already-present多层结构. This nesting approach allows the groove parts to be created without adding external thickness to the display panel, enabling enhanced circuit functionality through additional conductive layers while maintaining the same overall panel thickness and attachment force.
3Strength
If the groove depth is increased to enhance adhesive force, then the adhesive force is enhanced, but the manufacturing complexity is increased
Solution Approach 1:
The groove parts are formed as intermediary structures within the protective layers, serving as a mediator between the substrates and the sealant. By creating these grooves within the existing protective layer framework rather than modifying the substrates themselves, the invention enhances adhesive force while minimizing manufacturing complexity, as the grooves can be formed using standard photolithography and etching processes already employed in display manufacturing.
Data Source
AI summary
A liquid crystal display panel in one example includes first and second substrates facing each other; a sealant disposed between the first and second substrates, and corresponding to a perimeter of a display area; a first protective layer disposed over the first substrate; a second protective layer disposed over the first protective layer; and an adhesive groove part overlapping the sealant, and including a first contact groove passing through the first and second protective layers, and a second contact groove disposed adjacent to the first contact groove and passing through the second protective layer. Due to the adhesive groove part, the sealant can adhere to each of the first and second protective layers, whereby the attachment force of the liquid crystal display panel can be enhanced.