Display Panel Spacer Padding Structure Aperture Stability
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Solution Overview
Problem
Display panels face performance issues due to spacers moving into aperture regions under external force, affecting liquid crystal arrangement and light transmission, which decreases aperture ratio and display performance.
Innovation Solution
A display panel design featuring a padding structure with first and second pads located on either side of the spacer in non-aperture regions, preventing spacer movement into aperture regions by varying film layer thicknesses and elevations, ensuring spacer stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a spacer is disposed in the non-aperture region to maintain cell thickness, then the cell thickness can be maintained, but the spacer may move into the aperture region under external force, affecting display performance
Solution Approach 1:
The padding structure is formed in advance during the manufacturing process, creating a preventive barrier before the spacer can potentially move into the aperture region under external force. This preliminary structural preparation ensures the spacer remains confined to the non-aperture region throughout the display panel's operational life.
Solution Approach 2:
The padding structure acts as an intermediary element between the spacer and the aperture region. It provides a physical barrier that mediates the interaction between the spacer and external forces, preventing direct contact between the spacer and the aperture region while still allowing the spacer to fulfill its cell thickness maintenance function.
2Manufacturing precision
If the spacer is positioned above the gate line in the non-aperture region, then the cell thickness is maintained, but external force can displace the spacer into the aperture region, reducing aperture ratio
Solution Approach 1:
The non-aperture region is segmented into distinct functional zones: the gate line area for electrical connection and the padding structure area for mechanical support. This segmentation allows the spacer to be positioned above the gate line for proper electrical alignment while the padding structure provides a separate mechanical barrier to prevent displacement into the aperture region, thus maintaining both cell thickness and aperture ratio.
Solution Approach 2:
The padding structure serves as an intermediary barrier between the spacer and the aperture region. It allows the spacer to maintain its position above the gate line for proper cell thickness while preventing any potential displacement into the aperture region that would reduce the aperture ratio.
3Device complexity
If no padding structure is provided, then the device complexity is reduced, but the spacer can move under external force, affecting liquid crystal arrangement and light transmission
Solution Approach 1:
The padding structure is merged with the existing film layer structure of the display panel, utilizing the same manufacturing processes and material layers. This integration approach adds the protective function without significantly increasing device complexity, as the padding structure shares the same fabrication steps and material system as the gate line and other panel components.
Data Source
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AI summary
A display panel, a method for manufacturing same, and a display device, relating to the technical field of display, for use in resolving the problem of decrease in display performance of a display panel caused by a spacer moving to an opening area. The display panel comprises an opening area (1) and a non-opening area (2) surrounding the opening area (1), and a spacer (20) disposed in the non-opening area (2). A pad structure (30) is further provided in the non-opening area (2). The pad structure (30) is located beside the spacer (20) and used for preventing the spacer (20) from moving to the opening area (1). The position of the spacer (20) is defined by means of the pad structure (30) disposed in the non-opening area (2) and beside the spacer (20), so as to prevent the spacer (20) from moving to the opening area (1), thereby avoiding changes in arrangement of liquid crystals around the spacer (20) caused by movement of the spacer (20), and also preventing the spacer (20) from blocking light transmitted through the opening area (1) due to movement of the spacer (20) to the opening area (1). Thus, influences on the arrangement of the liquid crystals and the aperture ratio of the display panel caused by the spacer (20) moving to the opening area (1) can be avoided, and therefore the display performance of the display panel can be improved.