Staggered Connection Segments for OLED Viewing Angle Symmetry
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Solution Overview
Problem
The symmetry of the viewing angle of organic light-emitting diode (OLED) display panels deteriorates due to the technical solutions of fanout in active area (FIAA) used to achieve narrow bezel technology.
Innovation Solution
A display panel design that includes a base layer, a first metal layer with data lines, and a second metal layer with connection wirings. The connection wirings are arranged in a specific pattern with first, second, and third connection segments that are alternately and staggered, ensuring connections between them and avoiding overlap with anodes, thereby improving the symmetry of the viewing angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If fanout in active area (FIAA) technical solutions are applied to achieve narrow bezel technology, then the bezel width is reduced, but the symmetry of the viewing angle deteriorates
Solution Approach 1:
The connection wiring is divided into multiple segments (first connection segment, second connection segment, third connection segment) that are alternately and staggered arranged. This segmentation allows each segment to be independently positioned to avoid overlapping with anodes while maintaining overall connection functionality, thus preserving viewing angle symmetry despite the FIAA layout.
Solution Approach 2:
The connection segments are arranged in an asymmetric staggered pattern rather than a symmetric straight line. The first connection segments and second connection segments are alternately positioned at different locations, creating an asymmetric layout that avoids uniform overlapping with anodes and maintains viewing angle symmetry from multiple perspectives.
2Ease of manufacture
If connection wirings are arranged in straight lines to simplify layout, then manufacturing complexity is reduced, but uneven anodes are caused which deteriorates viewing angle symmetry
Solution Approach 1:
Instead of a single straight connection line, the connection wiring is segmented into multiple sections that can be independently positioned. This allows each segment to be optimized to avoid anode overlapping while maintaining overall connection integrity, thus preserving anode uniformity without significantly increasing manufacturing complexity.
Solution Approach 2:
The connection segments are arranged not only in the horizontal direction but also staggered in the vertical direction. This multi-dimensional arrangement allows the connection wiring to bypass anodes effectively while maintaining a relatively simple overall layout structure that does not significantly increase manufacturing complexity.
3Stability of the object's composition
If connection segments are staggered and alternately arranged to avoid anode overlap, then viewing angle symmetry is improved, but connection wiring complexity increases
Solution Approach 1:
The connection wiring is divided into standardized segments with clear connection relationships. Each segment has a defined function (first connection segment for one direction, second connection segment for another direction, third connection segment for connection). This segmentation makes the complex arrangement more systematic and easier to manufacture through standardized processes.
Solution Approach 2:
The staggered connection segment structure serves multiple functions: it avoids anode overlap, maintains viewing angle symmetry, provides flexible routing options, and enables standardized manufacturing. The same segment pattern can be applied to different connection wirings, reducing overall device complexity through universality.
Data Source
AI summary
The present disclosure provides display panels and display devices. There is at least one first connection line including a plurality of first connection segments each extending along a first direction, a plurality of second connection segments each extending along the first direction, and a plurality of third connection segments each extending along a second direction. The plurality of first connection segments and the plurality of second connection segments are alternately and staggered along the first direction. The first connection segment and one adjacent second connection segment are connected to both sides of one third connection segment in the first direction.